CN117719989A - Auxiliary hoisting device for transformer sleeve - Google Patents
Auxiliary hoisting device for transformer sleeve Download PDFInfo
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- CN117719989A CN117719989A CN202410052138.XA CN202410052138A CN117719989A CN 117719989 A CN117719989 A CN 117719989A CN 202410052138 A CN202410052138 A CN 202410052138A CN 117719989 A CN117719989 A CN 117719989A
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Abstract
The invention discloses an auxiliary hoisting device for transformer bushings, which belongs to the field of transformer assembly and comprises a portal frame and a lifting appliance, wherein the lifting appliance comprises a sliding seat which is slidably arranged on a lifting rail, a fixed seat is arranged at the lower part of the sliding seat, a connecting frame is arranged at the lower part of the fixed seat, a connecting plate is hinged at the lower part of the connecting frame, and a turnover oil cylinder is hinged at one side of the connecting plate; the connecting plate lower part is equipped with the connecting cover, and connecting cover both sides are connected with a support arm respectively, and one of them support arm lower part is equipped with first anchor clamps, and another support arm lower part is equipped with the second anchor clamps, first anchor clamps include fixed clamp splice, and the both sides of fixed clamp splice are articulated to have armful, armful upper end rotationally is connected with the spliced pole, it is connected with the double-end stud to rotate on the fixed clamp splice. According to the invention, the sleeve is lifted by the portal frame, and is turned to the installation angle by the lifting appliance, so that the whole process of dismounting the sleeve can be completed by only one person, the input of human resources is reduced, and the labor intensity of operators is reduced.
Description
Technical Field
The invention belongs to the field of transformer assembly, and particularly relates to an auxiliary hoisting device for transformer bushings.
Background
The transformer bushing is the main insulation device outside the transformer box, and the outgoing lines of the transformer winding must pass through the insulation bushing, so that the outgoing lines are insulated from each other and the outgoing lines are insulated from the transformer shell, and the transformer bushing plays a role in fixing the outgoing lines. As shown in fig. 1, a transformer bushing 101 is generally mounted obliquely to a transformer 1.
Currently, when a transformer bushing is installed or removed and replaced, a crane is generally used to hoist the bushing due to the heavy weight of the bushing, and then an operator installs the bushing. Because the sleeve has a certain inclination angle, when in installation, the sleeve is connected with the lifting hook of the crane by a lifting rope so as to be convenient for lifting the sleeve, a rope is bound at the lower part of the sleeve, and ground staff pulls the rope at the lower part of the sleeve to enable the sleeve to incline to the installation angle, and then the sleeve is installed. The installation mode needs a plurality of people to cooperate, so that the efficiency is low, and the labor intensity of ground workers for pulling ropes for a long time is high.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an auxiliary hoisting device for transformer bushings, so as to solve the problems of low efficiency, large manpower input and high manpower labor intensity in the process of disassembling and assembling the existing transformer bushings.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the auxiliary hoisting device for the transformer sleeve comprises a portal frame and a hoisting tool, wherein the portal frame comprises a cross beam, two sides of the cross beam are connected with upright posts, the lower ends of the upright posts are provided with bottom beams, and the lower parts of the bottom beams are provided with moving wheels; the lifting cylinder is arranged on the bottom beam, the upper end of a piston rod of the lifting cylinder is rotationally connected with a chain wheel, a chain is wound on the chain wheel, one end of the chain is connected with a cylinder seat of the lifting cylinder, and the other ends of the two chains are connected with hanging rails; the lifting appliance comprises a sliding seat which is slidably arranged on a lifting rail, a fixing seat is arranged at the lower part of the sliding seat, a connecting frame is arranged at the lower part of the fixing seat, a connecting plate is hinged at the lower part of the connecting frame, the connecting plate is of an L-shaped structure, a turnover oil cylinder is hinged at one side of the connecting plate, and the tail end of a piston rod of the turnover oil cylinder is hinged with the connecting frame; the connecting plate lower part is equipped with the junction housing, the junction housing both sides respectively are connected with a support arm, and one of them support arm lower part is equipped with first anchor clamps, and another support arm lower part is equipped with the second anchor clamps, first anchor clamps include fixed clamp splice, fixed clamp splice is the Y type structure of inversion, and the both sides of fixed clamp splice are articulated to have armful, armful upper end rotationally is connected with the spliced pole, it is connected with the double-end stud to rotate on the fixed clamp splice, and the screw thread at double-end stud is revolved to opposite, and the both ends and the spliced pole threaded connection of double-end stud, and the one end of double-end stud is equipped with the hand wheel, and the second anchor clamps are the same with first anchor clamps structure.
Further, two ends of the hanging rail are fixedly connected with sliding plates, guide sleeves are arranged at two ends of the sliding plates, and the guide sleeves are in sliding connection with the upright posts; the two ends of the bottom beam are connected with supporting screws in a threaded manner, and the two ends of the supporting screws are provided with backing plates.
Further, the lower part of the fixing seat is hinged with an auxiliary oil cylinder, the lower end of a piston rod of the auxiliary oil cylinder is hinged with the side wall of the connecting plate, and when the sleeve is lifted and overturned, the piston rod of the auxiliary oil cylinder contracts and is matched with the overturned oil cylinder to overturne the sleeve.
Further, fixing base lower part fixedly connected with sleeve, the inside pivot that is connected with through the bearing rotation of sleeve, the pivot lower extreme is connected with the jib through the ring flange, and the lower extreme and the link fixed connection of jib, pivot upper end fixedly connected with gear, the inside fixedly connected with linear guide of fixing base, sliding connection has the rack on the linear guide, and the rack meshes with the gear mutually, the inside rotary cylinder that is equipped with of fixing base, rotary cylinder's piston rod and rack fixed connection.
Furthermore, the lower part of the fixed seat is fixedly connected with an arc-shaped guide rail, the arc-shaped guide rail is connected with a sliding block in a sliding way, and a cylinder seat of the auxiliary cylinder is hinged on the sliding block.
Further, the upper portion of the fixed clamping block is provided with a through groove, the supporting arm is installed in the through groove in a clearance mode, the upper portion of the fixed clamping block is connected with an adjusting screw in a threaded mode, and a fixing disc is arranged at the lower portion of the adjusting screw.
Furthermore, the upper part of the supporting arm is provided with a plurality of clamping grooves, the edges of the clamping grooves are wavy, and the fixing disc is clamped in the clamping grooves.
Further, the connecting cover comprises an arc-shaped groove plate and arc-shaped cover plates arranged on two sides of the arc-shaped groove plate, the radian of the arc-shaped groove plate and the arc-shaped cover plates is larger than 180 degrees, the opening size of the arc-shaped groove plate and the arc-shaped cover plates is larger than the diameter of the sleeve, arc-shaped baffle plates are connected to two sides of the arc-shaped groove plate through bolts, a boss is arranged at one end of the arc-shaped cover plates, the inner diameter of the arc-shaped baffle plates is smaller than that of the arc-shaped groove plate, a guide groove is formed between the two arc-shaped baffle plates after the arc-shaped groove plate and the arc-shaped baffle plates are connected, the boss is installed in the guide groove in a clearance mode, after the sleeve is lifted, one arc-shaped cover plates rotate by 180 degrees, the arc-shaped cover plates on two sides enclose the sleeve, and the first clamp and the second clamp are clamped on two sides of the sleeve.
Further, the arc cover plate is connected with a clamping screw in a threaded manner, the lower end of the clamping screw is movably connected with a clamping plate, the clamping plate abuts against the outer wall of the sleeve, and when the arc cover plate rotates, the two clamping plates are respectively clamped on two sides of the sleeve.
The beneficial effects of the invention are as follows:
1) According to the invention, the sleeve is lifted by the portal frame, and is turned to the installation angle by the lifting appliance, so that the whole process of dismounting the sleeve can be completed by only one person, the input of human resources is reduced, and the labor intensity of operators is reduced.
2) The auxiliary oil cylinder is arranged at the lower part of the fixed seat, when the sleeve is lifted to turn over, the piston rod of the auxiliary oil cylinder contracts and is matched with the turning oil cylinder to turn over the sleeve, so that the pressure of the turning oil cylinder is reduced, and the stability of the sleeve turning over is improved.
3) The rotating oil cylinder is arranged in the fixing seat, a piston rod of the rotating oil cylinder drives the lifting appliance to horizontally rotate by utilizing gear rack transmission, and the adjustment of the horizontal angle of the sleeve is realized.
4) The upper part of the fixed clamping block is provided with a through groove, and the upper part of the fixed clamping block is provided with an adjusting screw rod, so that the distance between the first clamp and the second clamp is realized, and the fixed clamping block is suitable for hoisting sleeves with different specifications; in addition, a plurality of wavy clamping grooves which are arranged continuously are formed in the upper portion of the supporting arm, so that the first clamp and the second clamp are prevented from sliding on the supporting arm, and the stability of the first clamp and the second clamp after being adjusted is guaranteed.
5) The arc cover plates on two sides of the connecting cover are rotatable, after the sleeve is lifted, one of the arc cover plates is rotated 180 degrees, so that the arc cover plates on two sides enclose the sleeve, and the first clamp and the second clamp are clamped on two sides of the sleeve, so that the stability of clamping the sleeve is ensured.
6) The screw thread is connected with the clamping screw on the arc cover plate, and clamping plate is connected with in the lower extreme swing joint of clamping screw, and clamping plate offsets with the sleeve pipe outer wall, has increased hoist to sheathed tube clamping point quantity, and after the arc cover plate is rotatory, two clamping plates press from both sides respectively in sheathed tube both sides, has further strengthened the stability of sleeve pipe centre gripping.
Drawings
Fig. 1 is a schematic diagram of a transformer structure.
Fig. 2 is a state diagram of the transformer bushing auxiliary hoisting device according to the present invention.
Fig. 3 is a state diagram of a lifting device for lifting a sleeve in the auxiliary lifting device for the transformer sleeve.
Fig. 4 is a schematic diagram of a lifting appliance structure in an auxiliary lifting device for transformer bushings.
Fig. 5 is an assembly schematic diagram of a connecting cover, a first clamp and a second clamp in an auxiliary hoisting device for a transformer bushing.
Fig. 6 is a schematic structural diagram of a first fixture in the auxiliary hoisting device for the transformer bushing.
Fig. 7 is an exploded view of a connecting cover in an auxiliary hoisting device for transformer bushings.
Fig. 8 is an assembly schematic diagram of a slide, a fixing seat, a connecting frame and a connecting plate in the auxiliary hoisting device for the transformer bushing.
Fig. 9 is a schematic diagram of the internal structure of a fixing seat in the auxiliary hoisting device for the transformer bushing.
Fig. 10 is an assembly schematic diagram of a rotating shaft, a gear and a connecting frame in the auxiliary hoisting device for the transformer bushing.
In the figure: 1. a transformer; 101. a sleeve;
2. a portal frame; 201. a column; 202. a cross beam; 203. a moving wheel; 204. a slide plate; 205. a lifting oil cylinder; 206. a sprocket; 207. a chain; 208. a hanger rail; 209. a support screw;
3. a lifting appliance; 301. a slide; 302. a fixing seat; 303. a sleeve; 304. a rotating shaft; 305. a gear; 306. a rack; 307. a linear guide rail; 308. a rotary cylinder; 309. a boom; 310. a connecting frame; 311. a turnover oil cylinder; 312. an auxiliary oil cylinder; 313. an arc-shaped guide rail; 314. a slide block; 315. a connecting plate; 316. a connection cover; 317. an arc cover plate; 318. a boss; 319. clamping a screw; 320. a clamping plate; 321. arc-shaped grooved plates; 322. an arc baffle;
4. a first clamp; 401. a support arm; 402. a clamping groove; 403. fixing the clamping blocks; 404. adjusting a screw; 405. arm holding; 406. a connecting column; 407. a double-ended stud; 408. a hand wheel;
5. and a second clamp.
Detailed Description
The following description of the embodiments of the present invention will be made more fully with reference to the accompanying drawings, in which it is shown, however, in detail, only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, a particular orientation configuration and operation, and thus should not be construed as limiting the present invention.
As shown in fig. 2, the auxiliary hoisting device for the transformer bushing comprises a portal frame 2 and a lifting appliance 3, wherein the portal frame 2 comprises a cross beam 202, two sides of the cross beam 202 are connected with upright posts 201, bottom beams are arranged at the lower ends of the upright posts 201, and moving wheels 203 are arranged at the lower parts of the bottom beams; a lifting oil cylinder 205 is arranged on the bottom beam, a chain wheel 206 is rotatably connected to the upper end of a piston rod of the lifting oil cylinder 205, a chain 207 is wound on the chain wheel 206, one end of the chain 207 is connected with a cylinder seat of the lifting oil cylinder 205, and the other ends of the two chains 207 are connected with hanging rails 208; as shown in fig. 3-5, the lifting appliance 3 comprises a sliding seat 301 slidably mounted on a lifting rail 208, a fixed seat 302 is arranged at the lower part of the sliding seat 301, a connecting frame 310 is arranged at the lower part of the fixed seat 302, a connecting plate 315 is hinged at the lower part of the connecting frame 310, the connecting plate 315 is in an L-shaped structure, a turnover oil cylinder 311 is hinged at one side of the connecting plate 315, and the tail end of a piston rod of the turnover oil cylinder 311 is hinged with the connecting frame 310; the lower part of the connecting plate 315 is provided with a connecting cover 316, two sides of the connecting cover 316 are respectively connected with a supporting arm 401, one of the lower parts of the supporting arms 401 is provided with a first clamp 4, the lower part of the other supporting arm 401 is provided with a second clamp 5, as shown in fig. 6, the first clamp 4 comprises a fixed clamping block 403, the fixed clamping block 403 is in an inverted Y-shaped structure, two sides of the fixed clamping block 403 are hinged with a holding arm 405, the upper end of the holding arm is rotationally connected with a connecting column 406, the fixed clamping block 403 is rotationally connected with a double-end stud 407, threads at two ends of the double-end stud 407 are opposite in rotation direction, two ends of the double-end stud 407 are in threaded connection with the connecting column 406, one end of the double-end stud 407 is provided with a hand wheel 408, the second clamp 5 is identical to the first clamp 4 in structure, and the structure of the double-end stud 407 is not described.
As shown in fig. 2, two ends of the lifting rail 208 are fixedly connected with a sliding plate 204, two ends of the sliding plate 204 are provided with guide sleeves, the guide sleeves are in sliding connection with the upright posts 201, the sliding plate 204 uses the upright posts 201 as guide rods, and shaking generated when the lifting rail 208 is lifted is avoided, so that shaking during sleeve lifting operation is avoided, and the stability of sleeve lifting is ensured; the supporting screw 209 is connected to the sill both ends threaded connection, and the both ends of supporting screw 209 are equipped with the backing plate, and behind the portal frame 2 moved in place, rotatory supporting screw 209 made portal frame 2 fixed, further guaranteed the stability of sleeve pipe hoist and mount.
As shown in fig. 8, the lower part of the fixing base 302 is hinged with an auxiliary cylinder 312, the lower end of a piston rod of the auxiliary cylinder 312 is hinged with the side wall of the connecting plate 315, when the sleeve is lifted and turned over, the piston rod of the auxiliary cylinder 312 contracts and is matched with the turning cylinder 311 to turn over the sleeve, so that the pressure of the turning cylinder 311 is reduced, and the stability of the turning of the sleeve is improved.
As shown in fig. 9-10, a sleeve 303 is fixedly connected to the lower portion of the fixing base 302, a rotating shaft 304 is rotatably connected to the inside of the sleeve 303 through a bearing, a hanging rod 309 is connected to the lower end of the rotating shaft 304 through a flange, the lower end of the hanging rod 309 is fixedly connected to a connecting frame 310, a gear 305 is fixedly connected to the upper end of the rotating shaft 304, a linear guide 307 is fixedly connected to the inside of the fixing base 302, a rack 306 is slidably connected to the linear guide 307, the rack 306 is meshed with the gear 305, a rotary oil cylinder 308 is arranged inside the fixing base 302, and a piston rod of the rotary oil cylinder 308 is fixedly connected with the rack 306; after the sleeve is lifted, the piston rod of the rotary oil cylinder 308 is controlled to stretch and retract according to the installation angle of the sleeve on the transformer 1, and the gear 305 is driven to rotate by the rack 306, so that the connecting cover 316 at the lower part of the connecting frame 310 is driven to rotate by the rotating shaft 304 and the hanging rod 309, and the adjustment of the sleeve angle is realized.
As shown in fig. 8, the lower portion of the fixing base 302 is fixedly connected with an arc-shaped guide rail 313, the arc-shaped guide rail 313 is slidably connected with a slider 314, a cylinder seat of the auxiliary cylinder 312 is hinged on the slider 314, and the auxiliary cylinder 312 rotates along with the connecting plate 315 when the lifting appliance 3 rotates, so that the auxiliary cylinder 312 is prevented from generating torsion and oblique pulling, and the smoothness of the rotation of the lifting appliance 3 is ensured.
As shown in fig. 6, a through groove is formed in the upper portion of the fixing clamp block 403, the supporting arm 401 is installed in the through groove in a clearance manner, an adjusting screw 404 is connected to the upper portion of the fixing clamp block 403 in a threaded manner, a fixing plate is arranged on the lower portion of the adjusting screw 404, and the through groove is convenient for adjusting the distance between the first clamp 4 and the second clamp 5, so that the fixing clamp is suitable for hoisting of sleeves of different specifications.
As shown in fig. 6, a plurality of clamping grooves 402 are formed in the upper portion of the support arm 401, edges of the clamping grooves 402 are wavy, and the fixing disc is clamped in the clamping grooves 402, so that the first clamp 4 and the second clamp 5 are prevented from sliding on the support arm 401, and stability of the first clamp 4 and the second clamp 5 after adjustment is guaranteed.
As shown in fig. 7, the connecting cover 316 includes an arc-shaped slot plate 321 and arc-shaped cover plates 317 disposed on two sides of the arc-shaped slot plate 321, wherein the arc of the arc-shaped slot plate 321 and the arc-shaped cover plates 317 is greater than 180 degrees, the opening sizes of the arc-shaped slot plate 321 and the arc-shaped cover plates 317 are greater than the diameter of the sleeve, two sides of the arc-shaped slot plate 321 are connected with arc-shaped baffle plates 322 through bolts, one end of the arc-shaped cover plates 317 is provided with a boss 318, the inner diameter of the arc-shaped baffle plates 322 is smaller than that of the arc-shaped slot plate 321, a guide groove is formed between the two arc-shaped baffle plates 322 after the arc-shaped slot plate 321 and the arc-shaped baffle plates 322 are connected, the boss 318 is installed inside the guide groove in a clearance manner, after the sleeve is lifted, one of the arc-shaped cover plates 317 is rotated 180 degrees, the arc-shaped cover plates 317 on two sides enclose the sleeve, the first clamp 4 and the second clamp 5 are clamped on two sides of the sleeve, and the stability of the sleeve clamping is ensured.
As shown in fig. 7, the arc-shaped cover plate 317 is threaded with a clamping screw 319, the lower end of the clamping screw 319 is movably connected with a clamping plate 320, the clamping plate 320 abuts against the outer wall of the sleeve, the number of clamping points of the lifting appliance 3 on the sleeve is increased, and when the arc-shaped cover plate 317 rotates, the two clamping plates 320 are respectively clamped on two sides of the sleeve, so that the stability of clamping the sleeve is further enhanced.
When the sleeve 101 is hoisted, firstly, the portal frame 2 is moved to the upper part of the sleeve 101, then the lifting cylinder 205 is controlled to shrink, the lifting rail 208 is lowered, the lifting tool 3 is slid to the upper part of the sleeve, the distance between the first clamp 4 and the second clamp 5 is adjusted according to the length of the sleeve, then the hand wheel 408 is rotated, the sleeve 101 is clamped by the arm holding 405, and after the fixed clamp block 403 is in an inverted Y-shaped structure, the arm holding 405 holds the sleeve tightly, the sleeve is automatically centered in the fixed clamp block 403; after the sleeve is clamped, the lifting cylinder 205 is controlled to extend, the sleeve 101 is slowly lifted off the ground, then the arc cover plates 317 are rotated 180 degrees, the two arc cover plates 317 enclose the sleeve, the clamping screw 319 is screwed, and the clamping plates 320 clamp the sleeve at two sides of the sleeve; when the arc cover plate 317 rotates, the first clamp 4 or the second clamp 5 rotates along with the arc cover plate 317, so that the first clamp 4 and the second clamp 5 also hug the sleeve on two sides of the sleeve, and the stability of clamping the sleeve is ensured.
Continuously controlling the extension of the lifting oil cylinder 205, lifting the sleeve 101 to a height higher than that of the transformer 1, controlling the extension of a piston rod of the overturning oil cylinder 311, simultaneously controlling the contraction of a piston rod of the auxiliary oil cylinder 312, and overturning the sleeve in the vertical direction by using the connecting plate 315; according to the installation angle of the sleeve 101, the piston rod of the rotary oil cylinder 308 is controlled to stretch out and draw back, the rack 306 is utilized to drive the rotating shaft 304 to rotate, so that the sleeve 101 is driven to rotate to the installation angle in the horizontal direction, then the lifting oil cylinder 205 is controlled to slowly shrink, the sleeve 101 is installed on the transformer 1, the whole process of sleeve disassembly and assembly can be completed by only one person, the input of human resources is reduced, and the labor intensity of operators is reduced.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention, as it is apparent to those skilled in the art that various modifications or additions may be made to the specific embodiments described or substituted in a similar manner without departing from the scope of the invention.
Claims (9)
1. The auxiliary hoisting device for the transformer sleeve comprises a portal frame and a hoisting tool, wherein the portal frame comprises a cross beam, two sides of the cross beam are connected with upright posts, the lower ends of the upright posts are provided with bottom beams, and the lower parts of the bottom beams are provided with moving wheels; the lifting cylinder is arranged on the bottom beam, the upper end of a piston rod of the lifting cylinder is rotationally connected with a chain wheel, a chain is wound on the chain wheel, one end of the chain is connected with a cylinder seat of the lifting cylinder, and the other ends of the two chains are connected with hanging rails; the lifting appliance is characterized by comprising a sliding seat which is slidably arranged on a lifting rail, a fixed seat is arranged at the lower part of the sliding seat, a connecting frame is arranged at the lower part of the fixed seat, a connecting plate is hinged at the lower part of the connecting frame, the connecting plate is of an L-shaped structure, a turnover oil cylinder is hinged at one side of the connecting plate, and the tail end of a piston rod of the turnover oil cylinder is hinged with the connecting frame; the connecting plate lower part is equipped with the junction housing, the junction housing both sides respectively are connected with a support arm, and one of them support arm lower part is equipped with first anchor clamps, and another support arm lower part is equipped with the second anchor clamps, first anchor clamps include fixed clamp splice, fixed clamp splice is the Y type structure of inversion, and the both sides of fixed clamp splice are articulated to have armful, armful upper end rotationally is connected with the spliced pole, it is connected with the double-end stud to rotate on the fixed clamp splice, and the screw thread at double-end stud is revolved to opposite, and the both ends and the spliced pole threaded connection of double-end stud, and the one end of double-end stud is equipped with the hand wheel, and the second anchor clamps are the same with first anchor clamps structure.
2. The auxiliary hoisting device for the transformer bushing according to claim 1, wherein two ends of the hanging rail are fixedly connected with sliding plates, guide sleeves are arranged at two ends of the sliding plates, and the guide sleeves are in sliding connection with the upright posts; the two ends of the bottom beam are connected with supporting screws in a threaded manner, and the two ends of the supporting screws are provided with backing plates.
3. The auxiliary hoisting device for the transformer bushing according to claim 1, wherein an auxiliary oil cylinder is hinged to the lower portion of the fixing seat, the lower end of a piston rod of the auxiliary oil cylinder is hinged to the side wall of the connecting plate, and when the bushing is hoisted and turned over, the piston rod of the auxiliary oil cylinder contracts and is matched with the turning oil cylinder to turn over the bushing.
4. The transformer bushing auxiliary lifting device according to claim 3, wherein the lower portion of the fixing seat is fixedly connected with a sleeve, a rotating shaft is rotatably connected inside the sleeve through a bearing, the lower end of the rotating shaft is connected with a hanging rod through a flange plate, the lower end of the hanging rod is fixedly connected with a connecting frame, the upper end of the rotating shaft is fixedly connected with a gear, the inner portion of the fixing seat is fixedly connected with a linear guide rail, a rack is connected onto the linear guide rail in a sliding manner and meshed with the linear guide rail, a rotary oil cylinder is arranged inside the fixing seat, and a piston rod of the rotary oil cylinder is fixedly connected with the rack.
5. The auxiliary hoisting device for the transformer bushing according to claim 4, wherein the lower part of the fixing seat is fixedly connected with an arc-shaped guide rail, a sliding block is connected to the arc-shaped guide rail in a sliding manner, and a cylinder seat of the auxiliary cylinder is hinged to the sliding block.
6. The auxiliary hoisting device for the transformer bushing according to claim 1, wherein a through groove is formed in the upper portion of the fixed clamping block, the supporting arm is installed in the through groove in a clearance mode, an adjusting screw is connected to the upper portion of the fixed clamping block in a threaded mode, and a fixing disc is arranged on the lower portion of the adjusting screw.
7. The auxiliary hoisting device for transformer bushings of claim 6, wherein a plurality of clamping grooves are formed in the upper portion of the supporting arm, edges of the clamping grooves are wavy, and the fixing disc is clamped in the clamping grooves.
8. The auxiliary lifting device for the transformer bushing according to claim 1, wherein the connecting cover comprises an arc-shaped groove plate and arc-shaped cover plates arranged on two sides of the arc-shaped groove plate, the radian of the arc-shaped groove plate and the arc-shaped cover plates is larger than 180 degrees, the opening sizes of the arc-shaped groove plate and the arc-shaped cover plates are larger than the diameter of the bushing, the arc-shaped baffle plates are connected to two sides of the arc-shaped groove plate through bolts, a boss is arranged at one end of the arc-shaped cover plates, the inner diameter of the arc-shaped baffle plates is smaller than that of the arc-shaped groove plate, a guide groove is formed between the arc-shaped groove plate and the arc-shaped baffle plates after the arc-shaped groove plate and the arc-shaped baffle plates are connected, the boss is installed in the guide groove in a clearance mode, one arc-shaped cover plate is rotated by 180 degrees after the bushing is lifted, the arc-shaped cover plates on two sides enclose the bushing, and the first clamp and the second clamp are clamped on two sides of the bushing.
9. The auxiliary hoisting device for the transformer bushing according to claim 8, wherein the arc-shaped cover plate is in threaded connection with a clamping screw, the lower end of the clamping screw is movably connected with a clamping plate, the clamping plate abuts against the outer wall of the bushing, and when the arc-shaped cover plate rotates, the two clamping plates are respectively clamped on two sides of the bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410052138.XA CN117719989B (en) | 2024-01-12 | 2024-01-12 | Auxiliary hoisting device for transformer sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410052138.XA CN117719989B (en) | 2024-01-12 | 2024-01-12 | Auxiliary hoisting device for transformer sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117719989A true CN117719989A (en) | 2024-03-19 |
| CN117719989B CN117719989B (en) | 2024-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410052138.XA Active CN117719989B (en) | 2024-01-12 | 2024-01-12 | Auxiliary hoisting device for transformer sleeve |
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| CN (1) | CN117719989B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118183521A (en) * | 2024-05-15 | 2024-06-14 | 国网山东省电力公司聊城供电公司 | Hoisting tool for pole-mounted transformer |
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| CN117719989B (en) | 2024-08-23 |
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