CN114572064B - Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system - Google Patents
Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system Download PDFInfo
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- CN114572064B CN114572064B CN202210207929.6A CN202210207929A CN114572064B CN 114572064 B CN114572064 B CN 114572064B CN 202210207929 A CN202210207929 A CN 202210207929A CN 114572064 B CN114572064 B CN 114572064B
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- groove
- fixedly connected
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- collecting box
- reset
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000000725 suspension Substances 0.000 title claims abstract description 12
- 239000000428 dust Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/24—Clamps; Splicers; Anchor tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/26—Compensation means for variation in length
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a construction method and a construction device for a rigid suspension expansion joint of a 27.5KV overhead line, wherein the construction method comprises a first guide plate and a second guide plate, a chute is formed in the first guide plate, the second guide plate is fixedly connected with a guide block, the guide block is in sliding fit with the chute, a first air duct is arranged on one side of the chute, which is far away from the guide block, a first air duct is communicated with one end of the first air duct, which is far away from the chute, a negative pressure pump is arranged on one side of the first guide plate, which is far away from the chute, and an air inlet end of the negative pressure pump is communicated with the first air duct; one side of the guide sliding block close to the first air duct is fixedly connected with a second air duct, a booster pump is installed on the second guide plate, an air outlet of the booster pump is communicated with a third air duct, and the third air duct is communicated with the second air duct. The invention can reduce the sliding resistance of the guide sliding block in the sliding groove.
Description
Technical Field
The invention relates to the technical field of rail transit traction power supply overhead contact systems, in particular to a construction method and a construction device for a rigid suspension expansion joint of a 27.5KV overhead contact system.
Background
At present, in a rail transit rigid suspension power supply system, a bus expansion joint is connected in series between two anchor section buses, and is used as a mechanical compensation and electrical splicing device for length change of the buses caused by thermal expansion and contraction, so that the gap change of the buses at two ends caused by temperature change is compensated and regulated, and the electrical and mechanical properties of the bus expansion joint need to ensure seamless smooth and stable passing of a pantograph and meet the overall index of the system.
The prior art can refer to Chinese patent with the publication number of CN212219971U, which discloses a construction method and a construction device of a rigid suspension expansion joint of a 27.5KV overhead line system, wherein the construction method comprises two sections of bus bars arranged in a rigid overhead line system; the inner side surface of each guide plate is provided with a sliding groove extending towards two ends, the two guide plates are arranged at intervals in a side-by-side manner with the inner side surfaces opposite to each other, and a clamping structure capable of sliding relatively is formed between the two guide plates through guide blocks embedded in the sliding grooves; the two sections of bus bars are respectively positioned at two ends of the clamping structure and are respectively and fixedly connected to different guide plates; the electric connecting device is arranged at the top or the side surface of the clamping structure and electrically connects the two guide plates.
However, since the chute is exposed to the air for a long time, dust in the air is liable to enter into the chute, so that there is a possibility that the resistance of the slide guide in the chute increases.
Disclosure of Invention
In order to reduce the sliding resistance of the guide sliding block in the sliding groove, on the one hand, the application provides a 27.5KV overhead line system rigid suspension expansion joint construction device, which adopts the following technical scheme:
the utility model provides a 27.5KV contact net rigidity hangs expansion joint construction equipment, includes first guide plate and second guide plate, the spout has been seted up on the first guide plate, second guide plate fixedly connected with leads the slider, lead the slider with spout sliding fit, the spout is kept away from lead one side of slider and is installed first dryer, the first dryer is kept away from lead one end intercommunication of slider and is had first guide duct, the first guide plate is kept away from one side of spout and is installed the negative pressure pump, the air inlet end of negative pressure pump with first guide duct is linked together; the air outlet end of the negative pressure pump is communicated with a second air guide pipe, one side of the first guide plate is fixedly connected with a collecting box, one side of the collecting box is provided with an air inlet, the air inlet is communicated with the second air guide pipe, one side of the collecting box, which is far away from the second air guide pipe, is provided with an air outlet, and a collecting mechanism for collecting dust is arranged in the collecting box; one side of the guide sliding block, which is close to the first air duct, is fixedly connected with a second air duct, a booster pump is installed on the second guide plate, an air outlet of the booster pump is communicated with a third air duct, and the third air duct is communicated with the second air duct.
Through adopting above-mentioned technical scheme, when the dust in the spout is clear away to needs, start negative pressure pump and booster pump to form the wind channel, in the dust in the spout of being convenient for then gets into the collecting box, the rethread collects the setting of mechanism, and the operating personnel of being convenient for collect the processing to the dust, thereby clear away the dust in the spout, and then be convenient for reduce the resistance that leads the slider to slide in the spout.
Preferably, the collecting mechanism comprises a collecting frame, the collecting frame can with the inside wall sliding fit of collecting box, the opening part of collecting frame is towards the air intake sets up, the collecting frame is kept away from one side of air intake has seted up a plurality of filtration pores, the opening part rotation of collecting box is provided with first pivot, the cover is established in the first pivot and is fixed with sealed lid, the cover is equipped with first torsional spring in the first pivot, the both ends of first torsional spring respectively fixed connection in sealed lid with the relative inboard of collecting box, be provided with on the collecting box and be used for right sealed lid carries out spacing subassembly, be provided with on the collecting box and be used for the drive assembly that the collecting box removed.
By adopting the technical scheme, when the dust is conveyed into the collecting box from the second air guide pipe, the dust can be conveniently concentrated in the collecting frame through the arrangement of the collecting frame and the filtering holes, so that the dust can be conveniently collected; the sealing cover is arranged, so that the possibility that the collecting frame falls off from the collecting box can be conveniently reduced; the sealing cover can be conveniently fixed through the arrangement of the limiting component; through the setting of drive assembly, can be convenient for drive and collect the frame and remove to be convenient for operating personnel get and take and collect the frame.
Preferably, the limiting assembly comprises a limiting pin, a first through hole is formed in one side, far away from the first rotating shaft, of the collecting box, the limiting pin is in sliding fit with the inner side wall of the first through hole, a limiting groove is formed in one side, close to the first through hole, of the sealing cover, the limiting pin can be inserted into the inner side wall of the limiting groove, the limiting pin is far away from one end fixedly connected with handle of the limiting groove, a limiting spring is sleeved on the limiting pin, and two ends of the limiting spring are fixedly connected to the handle and the inner side opposite to the collecting box respectively.
Through adopting above-mentioned technical scheme, when needs are fixed sealed lid, manual drive handle removes in advance, and handle drive spacer pin removes, and spacing spring is in tensile state this moment, when the spacer pin aims at the spacing groove, unclamp the handle, the spacer pin is pegged graft in the spacing groove under the elasticity effect of spacing spring this moment to be convenient for fix sealed lid.
Preferably, the driving assembly comprises a driving plate, the driving plate is in sliding fit with the inner side wall of the collecting box, the driving plate can be abutted to one side, away from the sealing cover, of the collecting frame, a driving spring is fixedly connected to one side, away from the collecting frame, of the driving plate, and one side, away from the driving plate, of the driving spring is fixedly connected to the inner side wall of the collecting box.
Through adopting above-mentioned technical scheme, when needs drive collect the frame and remove, first manual drive collects the frame and removes, collects frame drive board and remove, and the drive spring is in by compression state this moment, loosens again and collects the frame, and the drive board removes under the elasticity effect of drive spring this moment to the frame removal is collected in the drive of being convenient for.
Preferably, the protection slot has been seted up to the inside wall of spout, the sliding of protection slot is provided with the elasticity protection shield, the second dryer can the butt in the elasticity protection shield, the protection slot rotation is provided with the lead screw, the lead screw with elasticity protection shield screw thread fit, be provided with in the protection slot and be used for the drive the rotatory rotary mechanism of lead screw.
Through adopting above-mentioned technical scheme, through the setting of elasticity protection shield and lead screw, when leading the slider and remove to first dryer, through rotary mechanism's setting, can be convenient for drive lead screw rotation, lead screw drive elasticity protection shield removes to between first dryer and the second dryer to be convenient for play cushioning effect to the second dryer.
Preferably, the rotary mechanism comprises a second rotating shaft, a second through hole is formed in one side of the protective groove, the second rotating shaft is rotatably arranged on the inner side wall of the second through hole, a second torsion spring is sleeved on the second rotating shaft, one end of the second torsion spring is fixedly connected with the second rotating shaft, the other end of the second torsion spring is fixedly connected with the inner side wall of the protective groove, the second rotating shaft is close to one end of the screw rod, a first bevel gear is fixedly sleeved on the screw rod, a second bevel gear is fixedly sleeved on the screw rod, the first bevel gear is meshed with the second bevel gear, a flat gear is fixedly sleeved on the second rotating shaft, a mounting groove is formed in one side of the protective groove, an elastic sheet is arranged in the mounting groove, the elastic sheet can be inserted in a tooth groove of the flat gear, and a separation assembly used for driving the elastic sheet and the tooth groove of the flat gear to separate is arranged in the mounting groove.
Through adopting above-mentioned technical scheme, when needs drive lead screw rotation, earlier through the tooth's socket separation of separation subassembly drive elastic piece and flat gear, flat gear rotates under the elasticity effect of torsional spring this moment, and flat gear drive second pivot rotates, and first bevel gear of second pivot drive rotates, and first bevel gear drive second bevel gear rotates to the drive lead screw of being convenient for.
Preferably, the separating assembly comprises a first inclined block, a horizontal groove is formed in one side, far away from the elastic protection plate, of the mounting groove, the first inclined block is in sliding fit with the inner side wall of the horizontal groove, the first inclined block can be abutted to the elastic piece, a vertical groove is formed in one side, far away from the elastic piece, of the horizontal groove, the vertical groove is communicated with the sliding groove, a second inclined block is arranged in the vertical groove in a sliding mode, a first inclined surface is arranged on one side, close to the sliding groove, of the second inclined block, and the first inclined surface can be matched with the outer side wall of the second air duct; a second inclined plane and a third inclined plane are respectively arranged on the opposite inner sides of the first inclined block and the second inclined block, and the second inclined plane is matched with the third inclined plane; the utility model discloses a reset device for the electric motor, including vertical groove, first reset groove has been seted up to one side in vertical groove, the second sloping block is close to one side fixedly connected with reset plate in first reset groove, reset plate with the inside wall sliding fit in first reset groove, one side fixedly connected with reset spring of reset plate, reset spring keep away from one side fixedly connected with in of reset plate in the inside wall in first reset groove.
Through adopting above-mentioned technical scheme, when the second dryer removes to the second sloping block, under the effect of first inclined plane, second dryer drive second sloping block removes, and when the second sloping block butt in first sloping block, the first sloping block of second sloping block drive removes, when first sloping block butt to the elastic sheet to can be convenient for drive the tooth's socket separation of elastic sheet and flat gear.
Preferably, a third through hole is formed in one side of the first guide plate, a second reset groove is formed in one side, far away from the first bevel gear, of the second through hole, the second reset groove is communicated with the third through hole, a motor is installed on one side, close to the third through hole, of the first guide plate, a third bevel gear is fixedly connected to an output shaft of the motor, a fourth bevel gear is fixedly connected to one end, far away from the first bevel gear, of the second rotating shaft, and the third bevel gear is meshed with the fourth bevel gear.
By adopting the technical scheme, when the elastic protection plate needs to be reset, the motor is started firstly to drive the output shaft to rotate, the output shaft drives the third bevel gear to rotate, the third bevel gear drives the fourth bevel gear to rotate, the fourth bevel gear drives the second rotating shaft to rotate, the torsion spring is in a compressed state at the moment, the second rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the screw to rotate, so that the elastic protection plate is convenient to reset; and then the second air duct is driven to be separated from the second inclined block, and the second inclined block moves under the action of the elastic force of the reset spring, so that the first inclined block is convenient to move, and the elastic piece is convenient to be inserted into the tooth slot of the flat gear.
The application provides a construction method of a rigid suspension expansion joint of a 27.5KV overhead line system, which adopts the following technical scheme:
s1: pulling the first guide plate and the second guide plate of the expansion joint towards the opposite direction, putting the first guide plate and the second guide plate into a reserved space between the buses at the two ends, measuring the gap values of the buses at the two ends of the installation position of the expansion joint by using a tape tool if the compensation amount of the anchor section is large, and adjusting the length of the expansion joint to the gap value size;
s2: the expansion joint is butted with the bus bars at the two ends and is fixed through the outsourcing joint;
s3: and respectively fixing reserved contact wires at the ends of the bus bars between the expansion joint trunking and the line pressing clamping plates.
To sum up, the application has the following beneficial effects:
1. when the dust in the sliding groove needs to be cleaned, the negative pressure pump and the booster pump are started, so that an air duct is formed, the dust in the sliding groove conveniently enters the collecting box, and the dust is conveniently collected by an operator through the arrangement of the collecting mechanism, so that the dust in the sliding groove is cleaned, and the sliding resistance of the guide sliding block in the sliding groove is conveniently reduced;
2. when the dust is conveyed into the collecting box from the second air guide pipe, the dust can be conveniently concentrated in the collecting frame through the arrangement of the collecting frame and the filtering holes, so that the dust can be conveniently collected; the sealing cover is arranged, so that the possibility that the collecting frame falls off from the collecting box can be conveniently reduced; the sealing cover can be conveniently fixed through the arrangement of the limiting component; the collection frame can be conveniently driven to move through the arrangement of the driving assembly, so that an operator can conveniently take the collection frame;
3. when the elastic protection plate needs to be reset, the motor is started to drive the output shaft to rotate, the output shaft drives the third bevel gear to rotate, the third bevel gear drives the fourth bevel gear to rotate, the fourth bevel gear drives the second rotating shaft to rotate, the torsion spring is in a compressed state at the moment, the second rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the screw rod to rotate, so that the elastic protection plate is convenient to reset; and then the second air duct is driven to be separated from the second inclined block, and the second inclined block moves under the action of the elastic force of the reset spring, so that the first inclined block is convenient to move, and the elastic piece is convenient to be inserted into the tooth slot of the flat gear.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
fig. 2 is a sectional view showing the collecting mechanism in the present embodiment;
FIG. 3 is a schematic view showing the structure of a second air duct in the present embodiment;
fig. 4 is a sectional view showing the rotation mechanism in the present embodiment.
Reference numerals illustrate: 1. a first deflector; 11. a chute; 111. a protection groove; 112. an elastic protection plate; 113. a screw rod; 121. a first air duct; 122. a first air guide pipe; 123. a negative pressure pump; 124. a second air guide pipe; 131. a third through hole; 132. a second reset groove; 133. a motor; 134. a third bevel gear; 135. a fourth bevel gear; 2. a second deflector; 211. a guide block; 212. a second air duct; 213. a booster pump; 214. a third air guide pipe; 3. a collection mechanism; 31. a collection box; 311. an air inlet; 312. an air outlet; 321. a collection frame; 322. a filter hole; 323. a first rotating shaft; 324. sealing cover; 325. a first torsion spring; 33. a limit component; 331. a limiting pin; 332. a first through hole; 333. a limit groove; 334. a handle; 335. a limit spring; 34. a drive assembly; 341. a driving plate; 342. a drive spring; 4. a rotation mechanism; 411. a second rotating shaft; 412. a second through hole; 413. a second torsion spring; 414. a first bevel gear; 415. a second bevel gear; 416. a flat gear; 417. a mounting groove; 418. an elastic sheet; 42. a separation assembly; 421. a first sloping block; 422. a horizontal slot; 423. a vertical slot; 424. a second sloping block; 425. a first inclined surface; 426. a second inclined surface; 427. a third inclined surface; 431. a first reset groove; 432. a reset plate; 433. and a return spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
The invention discloses a construction device for a rigid suspension expansion joint of a 27.5KV contact net, which comprises a first guide plate 1 and a second guide plate 2, wherein the first guide plate 1 is provided with a chute 11, the chute 11 extends along the horizontal direction, and in combination with the construction device shown in fig. 3, one side of the second guide plate 2, which is close to the chute 11, is fixedly connected with a guide slide block 211, the cross section of the guide slide block 211 is circular and is arranged along the axial direction of the chute 11, and the guide slide block 211 is in sliding fit with the inner side wall of the chute 11 along the axial direction of the chute 11.
As shown in fig. 1 and 2, a first air duct 121 is mounted on one side of the sliding chute 11 far from the air guide sliding block 211 through bolts, the cross section of the first air duct 121 is circular, one end of the first air duct 121 far from the air guide sliding block 211 is communicated with a first air guide duct 122, the cross section of the first air guide duct 122 is circular, a negative pressure pump 123 is mounted on one side of the first air guide plate 1 far from the sliding chute 11 through bolts, and the air inlet end of the negative pressure pump 123 is communicated with one end of the first air guide duct 122 far from the first air duct 121; the end intercommunication of giving vent to anger of negative pressure pump 123 has second guide duct 124, the cross section of second guide duct 124 is the ring shape and sets up along vertical direction, one side fixedly connected with collection box 31 that first guide plate 1 is close to negative pressure pump 123, collection box 31 is square and its opening direction sets up towards the direction of keeping away from spout 11, air intake 311 has been seted up at the top of collection box 31, the cross section of air intake 311 personally submits circularly and extends along vertical direction, air intake 311 is linked together with the one end that negative pressure pump 123 was kept away from to second guide duct 124, air outlet 312 has been seted up to one side that second guide duct 124 was kept away from to collection box 31, the cross section of air outlet 312 personally submits circularly and extends along vertical direction, be provided with in the collection box 31 and be used for collecting the collection mechanism 3 of dust.
As shown in fig. 1 and fig. 3, a second air duct 212 is fixedly connected to one side of the air guide block 211, which is close to the first air duct 121, the cross section of the second air duct 212 is circular and is arranged along the axial direction of the chute 11, a booster pump 213 is mounted on one side of the second air guide plate 2, which is far away from the air guide block 211, through bolts, the air outlet end of the booster pump 213 is communicated with a third air guide duct 214, the cross section of the third air guide duct 214 is circular, and one end of the third air guide duct 214, which is far away from the booster pump 213, is communicated with the second air duct 212.
When the dust in the chute 11 needs to be cleaned, the negative pressure pump 123 and the booster pump 213 are started to form an air channel, so that the dust in the chute 11 enters the collecting box 31, and the dust is conveniently collected by the collecting mechanism 3, so that the dust in the chute 11 is cleaned, and the sliding resistance of the guide sliding block 211 in the chute 11 is conveniently reduced.
As shown in fig. 1 and 2, the collecting mechanism 3 includes a collecting frame 321, the collecting frame 321 is square and its opening sets up towards the direction that is close to the air intake 311, collecting frame 321 can be with the inside wall of collecting box 31 along the length direction sliding fit of collecting box 31, a plurality of filtration holes 322 have been seted up to one side that collecting frame 321 is close to air outlet 312, collecting frame 321 is linked together with air outlet 312 through filtration holes 322, a plurality of filtration holes 322 are equidistant in proper order and are arranged in matrix, the cross section of filtration holes 322 is circular and extends along vertical direction, the opening part of collecting box 31 is provided with first pivot 323 through the bearing rotation, the cross section of first pivot 323 is circular and sets up along the length direction of collecting box 31, the outside wall cover of first pivot 323 is fixed with sealed lid 324, the cross section of sealed lid 324 is square, the cover is equipped with first torsional spring 325 on the first pivot 323, the axial setting of first torsional spring 325 is along first pivot 323, one end fixed connection is in sealed lid 324, the other end fixed connection is in collecting box 31, be provided with in the collecting box 31 and be used for carrying out spacing subassembly 33 to sealed lid 324, the cross section is circular and is provided with the drive subassembly that is used for removing the collecting 34 in the collecting box 31.
When the dust is conveyed into the collecting box 31 from the second air guide pipe 124, the dust can be conveniently concentrated in the collecting frame 321 by the arrangement of the collecting frame 321 and the filtering holes 322, so that the dust can be conveniently collected; by providing the sealing cover 324, the possibility that the collecting frame 321 falls off from the inside of the collecting box 31 can be reduced; the sealing cover 324 can be conveniently fixed by arranging the limiting component 33; through the setting of drive assembly 34, can be convenient for drive collection frame 321 remove to the operating personnel of being convenient for gets and puts collection frame 321.
As shown in fig. 1 and 2, the limiting component 33 includes a limiting pin 331, the cross section of the limiting pin 331 is circular and is arranged along the vertical direction, a first through hole 332 is formed in one side, far away from the first rotating shaft 323, of the collecting box 31, the cross section of the first through hole 332 is circular and extends along the vertical direction, the limiting pin 331 and the inner side wall of the first through hole 332 are in sliding fit along the vertical direction, a limiting groove 333 is formed in one side, close to the first through hole 332, of the sealing cover 324, the cross section of the limiting groove 333 is circular and extends along the vertical direction, the limiting pin 331 can be inserted into the inner side wall of the limiting groove 333, one end, far away from the limiting groove 333, of the limiting pin 331 is fixedly connected with a handle 334, the handle 334 is in a cake shape and is arranged along the vertical direction, a limiting spring 335 is sleeved on the limiting pin 331, and two ends of the limiting spring 335 are respectively fixedly connected to the opposite inner sides of the handle 334 and the collecting box 31.
When the sealing cover 324 needs to be fixed, the handle 334 is driven to move manually, the handle 334 drives the limiting pin 331 to move, the limiting spring 335 is in a stretching state, when the limiting pin 331 is aligned with the limiting groove 333, the handle 334 is loosened, and the limiting pin 331 is inserted into the limiting groove 333 under the action of the elastic force of the limiting spring 335, so that the sealing cover 324 is convenient to fix.
As shown in fig. 1 and 2, the driving assembly 34 includes a driving plate 341, where the driving plate 341 is square and is disposed along a vertical direction, the driving plate 341 and an inner side wall of the collecting box 31 are slidably matched along a width direction of the collecting box 31, the driving plate 341 can be abutted to a side, away from the sealing cover 324, of the collecting box 321, a driving spring 342 is fixedly connected to a side, away from the collecting box 321, of the driving plate 341, the driving spring 342 is disposed along a length direction of the collecting box 31, and a side, away from the driving spring 342, of the driving plate 341 is fixedly connected to a side wall of the collecting box 31.
When the collection frame 321 needs to be driven to move, the collection frame 321 is driven to move manually, the collection frame 321 drives the driving plate 341 to move, the driving spring 342 is in a compressed state at this time, and then the collection frame 321 is loosened, and the driving plate 341 moves under the action of the elastic force of the driving spring 342 at this time, so that the collection frame 321 is driven to move conveniently.
As shown in fig. 1 and 4, the inner side wall of the chute 11 is provided with a protection groove 111, the cross section of the protection groove 111 is square and extends along the vertical direction, an elastic protection plate 112 is slidably arranged in the protection groove 111 along the vertical direction, the elastic protection plate 112 is square and is arranged along the vertical direction, one side of the second air duct 212, which is close to the first air duct 121, can be abutted to one side of the elastic protection plate 112, which is far away from the first air duct 121, the inner side wall of the protection groove 111 is provided with a lead screw 113 through bearing rotation, the lead screw 113 is arranged along the vertical direction, the lead screw 113 penetrates through the elastic protection plate 112, the lead screw 113 is in threaded fit with the elastic protection plate 112, and a rotating mechanism 4 for driving the lead screw 113 to rotate is arranged in the protection groove 111.
Through the setting of elasticity protection shield 112 and lead screw 113, when leading slider 211 removes to first dryer 121, through rotary mechanism 4's setting, can be convenient for drive lead screw 113 rotation, lead screw 113 drive elasticity protection shield 112 removes to between first dryer 121 and the second dryer 212 to be convenient for play the cushioning effect to second dryer 212.
As shown in fig. 1 and fig. 4, the rotation mechanism 4 includes a second rotation shaft 411, the cross section of the second rotation shaft 411 is circular and is arranged along the length direction of the protection slot 111, a second through hole 412 is formed in the right side of the protection slot 111, the cross section of the second through hole 412 is circular and extends along the width direction of the elastic protection plate 112, the second rotation shaft 411 is rotatably arranged on the inner side wall of the second through hole 412 through a bearing, a second torsion spring 413 is sleeved on the outer side wall of the second rotation shaft 411, the second torsion spring 413 is in a compressed state in an initial state, one end of the second torsion spring 413 is fixedly connected with the second rotation shaft 411, the other end is fixedly connected with the side wall of the protection slot 111, which is close to the second through hole 412, a first bevel gear 414 is fixedly connected with one end of the second rotation shaft 411, a second bevel gear 415 is sleeved on the outer side wall of the lead screw 113, the first bevel gear 414 is meshed with the second bevel gear 415.
As shown in fig. 1 and fig. 4, the second rotating shaft 411 is sleeved and fixed with a flat gear 416, one side, close to the chute 11, of the protection slot 111 is provided with a mounting slot 417, the cross section of the mounting slot 417 is square and extends along the vertical direction, the inner side wall of the mounting slot 417 is fixedly connected with an elastic piece 418, the elastic piece 418 can only be bent along the axial direction of the second rotating shaft 411, the elastic piece 418 is arranged along the vertical direction and the elastic piece 418 can be inserted into a tooth slot of the flat gear 416, and a separation assembly 42 for driving the elastic piece 418 to be separated from the tooth slot of the flat gear 416 is arranged in the mounting slot 417.
When the screw rod 113 needs to be driven to rotate, the elastic piece 418 is driven to be separated from the tooth groove of the flat gear 416 through the separation assembly 42, at this time, the flat gear 416 rotates under the elastic action of the torsion spring, the flat gear 416 drives the second rotating shaft 411 to rotate, the second rotating shaft 411 drives the first bevel gear 414 to rotate, and the first bevel gear 414 drives the second bevel gear 415 to rotate, so that the screw rod 113 is driven to rotate conveniently.
As shown in fig. 1 and fig. 4, the separating component 42 includes a first inclined block 421, the cross section of the first inclined block 421 is square and is disposed along the axial direction of the second rotating shaft 411, a horizontal groove 422 is disposed on one side of the mounting groove 417 away from the elastic protection plate 112, the cross section of the horizontal groove 422 is square and extends along the axial direction of the second rotating shaft 411, the inner side wall of the first inclined block 421 and the inner side wall of the horizontal groove 422 are in sliding fit along the axial direction of the second rotating shaft 411, one side of the first inclined block 421, which is close to the mounting groove 417, can be abutted to the elastic piece 418, a vertical groove 423 is disposed on one side of the horizontal groove 422 away from the elastic piece 418, the cross section of the vertical groove 423 is square and extends along the vertical direction, the vertical groove 423 is communicated with the chute 11, a second inclined block 424 is disposed in the vertical direction in a sliding manner, the cross section of the second inclined block 424 is square and is disposed along the vertical direction, a first inclined surface 425 is disposed on one side of the second inclined block 424, which is close to the chute 11, and the first inclined surface 425 can be matched with the outer side wall of the second air duct 212.
As shown in fig. 1 and 4, the opposite inner sides of the first inclined block 421 and the second inclined block 424 are respectively provided with a second inclined plane 426 and a third inclined plane 427, and the second inclined plane 426 is matched with the third inclined plane 427; the first reset groove 431 has been seted up to one side of vertical groove 423, the transversal square and the vertical direction extension of personally submitting of first reset groove 431, one side fixedly connected with reset plate 432 that the second sloping block 424 is close to first reset groove 431, reset plate 432 is square its setting along the horizontal direction, reset plate 432 and the inside wall of first reset groove 431 follow vertical direction sliding fit, the top fixedly connected with reset spring 433 of reset plate 432, reset spring 433 sets up along the vertical direction, one side fixedly connected with in the inside wall of first reset groove 431 that reset spring 433 kept away from reset plate 432.
When the second air duct 212 moves to the second inclined block 424, the second air duct 212 drives the second inclined block 424 to move under the action of the first inclined plane 425, when the second inclined block 424 abuts against the first inclined block 421, the second inclined block 424 drives the first inclined block 421 to move, and when the first inclined block 421 abuts against the elastic piece 418, the elastic piece 418 can be conveniently driven to be separated from the tooth slot of the flat gear 416.
As shown in fig. 1 and fig. 4, a third through hole 131 is formed in the top of the first baffle 1, the cross section of the third through hole 131 is circular and extends along the vertical direction, a second reset groove 132 is formed in one side, far away from the first bevel gear 414, of the second through hole 412, the cross section of the second reset groove 132 is square and extends along the vertical direction, the second reset groove 132 is communicated with the third through hole 131, a motor 133 is mounted on one side, close to the third through hole 131, of the first baffle 1 through a bolt, a third bevel gear 134 is fixedly connected to an output shaft of the motor 133, a fourth bevel gear 135 is fixedly connected to one end, far away from the first bevel gear 414, of the second rotating shaft 411, and the third bevel gear 134 is meshed with the fourth bevel gear 135.
When the elastic protection plate 112 needs to be reset, the motor 133 is started to drive the output shaft to rotate, the output shaft drives the third bevel gear 134 to rotate, the third bevel gear 134 drives the fourth bevel gear 135 to rotate, the fourth bevel gear 135 drives the second rotating shaft 411 to rotate, at the moment, the torsion spring is in a compressed state, the second rotating shaft 411 drives the first bevel gear 414 to rotate, the first bevel gear 414 drives the second bevel gear 415 to rotate, and the second bevel gear 415 drives the screw 113 to rotate, so that the elastic protection plate 112 is convenient to reset; and then the second air duct 212 is driven to be separated from the second inclined block 424, and the second inclined block 424 moves under the action of the elastic force of the return spring 433, so that the first inclined block 421 is convenient to move, and the elastic piece 418 is convenient to be inserted into the tooth slot of the flat gear 416.
Working principle:
when the dust in the chute 11 needs to be cleaned, the negative pressure pump 123 and the booster pump 213 are started to form an air channel, so that the dust in the chute 11 enters the collecting box 31, and the dust is conveniently collected by the collecting mechanism 3, so that the dust in the chute 11 is cleaned, and the sliding resistance of the guide sliding block 211 in the chute 11 is conveniently reduced.
The embodiment of the application also discloses a construction method of the rigid suspension expansion joint of the 27.5KV overhead line system, which comprises the following steps:
s1: if the compensation amount of the anchor section is less than 500mm, the first guide plate and the second guide plate of the expansion joint are pulled to the positions with the distance of 3000mm between the two end parts in the opposite direction, and then the first guide plate and the second guide plate are placed in the reserved 3 m positions between the two end bus bars, if the compensation amount of the anchor section is large, measuring the gap values of the two end bus bars at the installation position of the expansion joint by using a tape tool, and adjusting the length of the expansion joint to the gap value size;
s2: the expansion joint is abutted with the bus bars at the two ends, the expansion joint is fixed through the outsourcing joint and the M12 bolt, the tight abutting of the expansion joint and the bus bars at the two ends is ensured, and the fastening torque of the M12 bolt is 56 N.m;
s3: and respectively fixing reserved contact lines at the ends of the bus bars between the expansion joint trunking and the line pressing clamping plates through M8 bolts, wherein the M8 bolts fasten the moment 13 N.m.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (3)
1. The utility model provides a 27.5KV contact net rigidity hangs expansion joint construction equipment, includes first guide plate (1) and second guide plate (2), spout (11) have been seted up on first guide plate (1), second guide plate (2) fixedly connected with leads slider (211), lead slider (211) with spout (11) sliding fit, its characterized in that: a first air duct (121) is arranged on one side, far away from the guide sliding block (211), of the sliding groove (11), a first air duct (122) is communicated with one end, far away from the guide sliding block (211), of the first air duct (121), a negative pressure pump (123) is arranged on one side, far away from the sliding groove (11), of the first air guide plate (1), and the air inlet end of the negative pressure pump (123) is communicated with the first air duct (122); the air outlet end of the negative pressure pump (123) is communicated with a second air guide pipe (124), one side of the first air guide plate (1) is fixedly connected with a collecting box (31), an air inlet (311) is formed in one side of the collecting box (31), the air inlet (311) is communicated with the second air guide pipe (124), an air outlet (312) is formed in one side, away from the second air guide pipe (124), of the collecting box (31), and a collecting mechanism (3) for collecting dust is arranged in the collecting box (31); a second air duct (212) is fixedly connected to one side, close to the first air duct (121), of the air guide block (211), a booster pump (213) is installed on the second air guide plate (2), an air outlet (312) of the booster pump (213) is communicated with a third air guide duct (214), and the third air guide duct (214) is communicated with the second air duct (212);
the collecting mechanism (3) comprises a collecting frame (321), the collecting frame (321) can be in sliding fit with the inner side wall of the collecting box (31), an opening of the collecting frame (321) faces the air inlet (311), a plurality of filtering holes (322) are formed in one side, away from the air inlet (311), of the collecting frame (321), a first rotating shaft (323) is rotatably arranged at the opening of the collecting box (31), a sealing cover (324) is fixedly sleeved on the first rotating shaft (323), a first torsion spring (325) is sleeved on the first rotating shaft (323), two ends of the first torsion spring (325) are fixedly connected to the inner side opposite to the sealing cover (324) and the collecting box (31), a limiting component (33) for limiting the sealing cover (324) is arranged on the collecting box (31), and a driving component (34) for driving the collecting frame (321) to move is arranged on the collecting box (31).
A third through hole (131) is formed in one side of the first guide plate (1), a second reset groove (132) is formed in one side, far away from the first bevel gear (414), of the second through hole (412), the second reset groove (132) is communicated with the third through hole (131), a motor (133) is mounted on one side, close to the third through hole (131), of the first guide plate (1), a third bevel gear (134) is fixedly connected to an output shaft of the motor (133), a fourth bevel gear (135) is fixedly connected to one end, far away from the first bevel gear (414), of the second rotating shaft (411), and the third bevel gear (134) is meshed with the fourth bevel gear (135);
the limiting component (33) comprises a limiting pin (331), a first through hole (332) is formed in one side, far away from the first rotating shaft (323), of the collecting box (31), the limiting pin (331) is in sliding fit with the inner side wall of the first through hole (332), a limiting groove (333) is formed in one side, close to the first through hole (332), of the sealing cover (324), the limiting pin (331) can be inserted into the inner side wall of the limiting groove (333), a handle (334) is fixedly connected to one end, far away from the limiting groove (333), of the limiting pin (331), a limiting spring (335) is sleeved on the limiting pin (331), and two ends of the limiting spring (335) are fixedly connected to the opposite inner sides of the handle (334) and the collecting box (31) respectively;
the driving assembly (34) comprises a driving plate (341), the driving plate (341) is in sliding fit with the inner side wall of the collecting box (31), the driving plate (341) can be abutted to one side, far away from the sealing cover (324), of the collecting frame (321), a driving spring (342) is fixedly connected to one side, far away from the collecting frame (321), of the driving plate (341), and one side, far away from the driving plate (341), of the driving spring (342) is fixedly connected to the inner side wall of the collecting box (31);
the inner side wall of the sliding groove (11) is provided with a protection groove (111), an elastic protection plate (112) is arranged in the protection groove (111) in a sliding mode, the second air duct (212) can be abutted to the elastic protection plate (112), a screw (113) is arranged in the protection groove (111) in a rotating mode, the screw (113) is in threaded fit with the elastic protection plate (112), and a rotating mechanism (4) used for driving the screw (113) to rotate is arranged in the protection groove (111);
the rotary mechanism (4) comprises a second rotating shaft (411), a second through hole (412) is formed in one side of the protection groove (111), the second rotating shaft (411) is rotatably arranged on the inner side wall of the second through hole (412), a second torsion spring (413) is sleeved on the second rotating shaft (411), one end of the second torsion spring (413) is fixedly connected with the second rotating shaft (411), the other end of the second torsion spring is fixedly connected with the inner side wall of the protection groove (111), a first bevel gear (414) is fixedly connected with one end of the second rotating shaft (411) close to the lead screw (113), a second bevel gear (415) is fixedly sleeved on the lead screw (113), a flat gear (416) is fixedly sleeved on the second rotating shaft (411), a mounting groove (417) is formed in one side of the protection groove (111), an elastic piece (418) is arranged in the mounting groove (417), the elastic piece (418) can be fixedly connected with a first bevel gear (414), the flat gear (416) is sleeved on the lead screw (113), and the elastic piece (418) is used for being separated from the elastic piece (42).
2. The construction device for the rigid suspension expansion joint of the 27.5KV overhead line system, according to claim 1, is characterized in that: the separation assembly (42) comprises a first inclined block (421), a horizontal groove (422) is formed in one side, away from the elastic protection plate (112), of the mounting groove (417), the first inclined block (421) is in sliding fit with the inner side wall of the horizontal groove (422), the first inclined block (421) can be abutted to the elastic piece (418), a vertical groove (423) is formed in one side, away from the elastic piece (418), of the horizontal groove (422), the vertical groove (423) is communicated with the sliding groove (11), a second inclined block (424) is arranged in the vertical groove (423) in a sliding mode, a first inclined surface (425) is arranged in one side, close to the sliding groove (11), of the second inclined block (424), and the first inclined surface (425) can be matched with the outer side wall of the second air duct (212). A second inclined plane (426) and a third inclined plane (427) are respectively arranged on the opposite inner sides of the first inclined block (421) and the second inclined block (424), and the second inclined plane (426) is matched with the third inclined plane (427); first reset groove (431) has been seted up to one side of vertical groove (423), second sloping block (424) is close to one side fixedly connected with reset plate (432) of first reset groove (431), reset plate (432) with the inside wall sliding fit of first reset groove (431), one side fixedly connected with reset spring (433) of reset plate (432), reset spring (433) keep away from one side fixedly connected with of reset plate (432) in the inside wall of first reset groove (431).
3. A construction method of a 27.5KV overhead line system rigid suspension expansion joint construction device according to any one of claims 1-2, characterized in that: the construction method comprises the following construction steps:
s1: pulling the first guide plate (1) and the second guide plate (2) of the expansion joint towards the opposite direction, putting the expansion joint into a reserved space between the buses at the two ends, measuring the gap values of the buses at the two ends of the installation part of the expansion joint by using a tape tool if the compensation quantity of the anchor section is large, and adjusting the length of the expansion joint to the gap value size;
s2: the expansion joint is butted with the bus bars at the two ends and is fixed through the outsourcing joint;
s3: and respectively fixing reserved contact wires at the ends of the bus bars between the expansion joint trunking and the line pressing clamping plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207929.6A CN114572064B (en) | 2022-03-03 | 2022-03-03 | Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207929.6A CN114572064B (en) | 2022-03-03 | 2022-03-03 | Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system |
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| CN114572064B true CN114572064B (en) | 2024-02-06 |
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| CN202210207929.6A Active CN114572064B (en) | 2022-03-03 | 2022-03-03 | Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system |
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| DE102013100019A1 (en) * | 2013-01-02 | 2014-07-03 | Conductix-Wampfler Gmbh | Delivery unit for positioning a pantograph unit |
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| JPS5951626U (en) * | 1982-09-29 | 1984-04-05 | 日立電線株式会社 | Automatic cleaner for trolley bus ducts |
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| CN114572064A (en) | 2022-06-03 |
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Inventor after: Yao Xin Inventor after: Yang Ruibing Inventor after: Zhang Liangtian Inventor after: Wang Chaozhi Inventor after: Kang Lujun Inventor after: Yan Peijin Inventor after: Su Liang Inventor after: Hu Xiaowei Inventor after: Zhang Xiaoqiang Inventor after: Zhong Dongsheng Inventor before: Yao Xin Inventor before: Kang Lujun Inventor before: Yan Peijin Inventor before: Su Liang Inventor before: Hu Xiaowei Inventor before: Zhang Xiaoqiang Inventor before: Zhong Dongsheng Inventor before: Yang Ruibing |