CN104835663B - Steam turbine switch enclosure - Google Patents
Steam turbine switch enclosure Download PDFInfo
- Publication number
- CN104835663B CN104835663B CN201510305781.XA CN201510305781A CN104835663B CN 104835663 B CN104835663 B CN 104835663B CN 201510305781 A CN201510305781 A CN 201510305781A CN 104835663 B CN104835663 B CN 104835663B
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- CN
- China
- Prior art keywords
- switch
- cam
- automatic centering
- box body
- steam turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
Landscapes
- Mechanical Operated Clutches (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a kind of steam turbine switch enclosure, you can for nuclear power generation, can be used for fire generating, using heat resistant type double loop limit switch, temperature tolerance, up to+120 degree, is realized multiplied signal output, simplified structure, reduces cost again；Achievable cam any angular position sets, and not limited by structure etc. point, evades the deficiency of fan-shaped shifting fork mechanism；Cancel cam engager, it is to avoid the hidden danger that floating self-locking mechanism itself exists；Cancel fan-shaped shifting fork mechanism, reduce rotary inertia；Using automatic centering expansion coupling sleeve, when bearing load, transmit torque, axial force or the combined load of the two by it with parts, the combination pressure of axle and the frictional force producing together, accuracy of alignment is high, installation, adjustment, convenient disassembly, intensity is high, and connective stability is reliable.
Description
Technical field
The present invention relates to electric turbine technical field of system control, more particularly, to a kind of steam turbine switch enclosure.
Background technology
Domestic nuclear power generation at present, fiery electric turbine group valve opening and closing controlling switch box all use external product, valency
Lattice are expensive, and delivery cycle is long, and technology is abroad monopolized, and is if things go on like this unfavorable for domestic nuclear power generation cause.
There is problems with external nuclear power generation product：1st, switch enclosure is because be that single-circuit switch exports, if multiloop is defeated
Go out to cause associated components more；2nd, the original position of switch enclosure determines is circumference equal dividing, and does not accomplish arbitrarily angled true
Fixed；3rd, switch enclosure cam and camshaft are in floating self-locking mechanism it is impossible to accomplishing reliability, being closely allowed to fasten；4th, switch, convex
Wheel, cam engager are more.
There is problems with external fiery generating product：1st, because being single-circuit switch output, multiloop exports switch enclosure
Associated components certainly will be caused more and be difficult to realize；2nd, fan-shaped shifting fork mechanism in switch enclosure, the radius of gyration is larger, is not round simultaneously
Week distribution, in the presence of big impulsive force, produces larger rotary inertia, axle produces larger friction in axle sleeve simultaneously
Power；3rd, switch enclosure driving lever axle sleeve is independent support, shift lever axis when in axle sleeve, Rapid Relative slides friction pair stress greatly (line connects
Touch)；4th, fan-shaped shifting fork mechanism, due to reasons in structure, is debugged extremely difficult, causes other parts easily to damage simultaneously.
Content of the invention
The present invention is to solve the problems, such as above-mentioned, provides a kind of steam turbine switch enclosure.
For solving above-mentioned technical problem, the technical scheme is that：Steam turbine switch enclosure, including box body, driving lever, canine tooth
Wheel, little gear and connecting terminal block, the side of tray interior is provided with L plate, and the top of L plate is provided with U-shaped plate, and U-shaped plate is pacified
Equipped with connecting terminal block, L plate is connected with Large Gear Shaft, Large Gear Shaft is passed box body and is connected with driving lever, and gear wheel is arranged on greatly
On gear shaft, gear wheel is engaged with little gear and arranges up and down, and little gear is arranged on pinion shaft, and pinion shaft passes through L plate
And the two ends of pinion shaft are all connected with box body, pinion shaft are provided with double loop travel switch and/or single loop stroke is opened
Close；Double loop travel switch includes automatic centering expansion coupling sleeve, cam and heat resistant type double loop limit switch, and several are automatic
Centering bulging joining sleeve is sleeved on pinion shaft, and automatic centering expansion coupling sleeve is provided with cam, and cam is double with heat resistant type
Loop limit switch contacts, and heat resistant type double loop limit switch is fixed on U-shaped plate, heat resistant type double loop limit switch with connect
Line terminals row connect；Single loop travel switch includes automatic centering expansion coupling sleeve, cam and Half Close Plant Type of Hybrid encapsulation switch, some
Individual automatic centering expansion coupling sleeve is sleeved on pinion shaft, and automatic centering expansion coupling sleeve is provided with cam, cam and half
Compact package switch contacts, and Half Close Plant Type of Hybrid encapsulation switch is fixed on U-shaped plate, and Half Close Plant Type of Hybrid encapsulation switchs and binding post
Row connects.
Further, the front of box body is provided with polyester transparent plate.
Further, gear wheel and little gear are straight tooth structure.
Further, driving lever is installed with jaw clutch, jaw clutch be sleeved in Large Gear Shaft and
Outside positioned at box body.
Further, gear wheel and little gear are helical teeth structure.
The present invention can be used for nuclear power generation, can be used for fire generating again, enormously simplify the structure of external product it is achieved that using
Less part achieves more output function, overall lightweight, reduces production cost, lifts cost performance, more surmounts
The performance of external product, this technology is no longer abroad monopolized, and is significantly beneficial to the development of domestic generating cause；Using heat resistant type double back
Road limit switch, temperature tolerance, up to+120 degree, is realized multiplied signal output, is simplified structure, reduces cost；Achievable cam is any
Angle position sets, and not limited by structure etc. point, evades the deficiency of fan-shaped shifting fork mechanism；Cancel cam engager, it is to avoid float
The hidden danger that self-locking mechanism itself exists；Cancel fan-shaped shifting fork mechanism, reduce rotary inertia；Using automatic centering expansion coupling sleeve,
When bearing load, by it with parts, the combination pressure of axle and the frictional force producing together transmit torque, axial force or the two
Combined load, accuracy of alignment is high, installation, adjustment, convenient disassembly, and intensity is high, and connective stability is reliable.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is zoomed-in view at A；
Fig. 3 is zoomed-in view at B.
Wherein：1. box body, 2. driving lever, 3. jaw clutch, 4. polyester transparent plate, 5. gear wheel, 6. Large Gear Shaft,
7.L plate, 8. little gear, 9. pinion shaft, 10. automatic centering expansion coupling sleeve, 11. cams, 12. heat resistant type double loops are spacing to open
Close, 13. Half Close Plant Type of Hybrid encapsulation switches, 14.U template, 15. connecting terminal blocks.
Specific embodiment
Embodiment one
As shown in Figure 1-Figure 3, for the steam turbine switch enclosure of nuclear power generation, including box body 1, driving lever 2, gear wheel 5, little gear
8 and connecting terminal block 15, the front of box body 1 is provided with polyester transparent plate 4, and the side within box body 1 is provided with L plate 7, the top of L plate 7
Portion is provided with U-shaped plate 14, and U-shaped plate 14 is provided with connecting terminal block 15, and L plate 7 is connected with Large Gear Shaft 6, and Large Gear Shaft 6 is worn
Go out box body 1 to be connected with driving lever 2, driving lever 2 is installed with jaw clutch 3, jaw clutch 3 is sleeved on Large Gear Shaft
On 6 and be located at the outside of box body 1, gear wheel 5 is arranged in Large Gear Shaft 6, and gear wheel 5 is engaged with little gear 8 and arranges up and down,
Gear wheel 5 and little gear 8 are straight tooth structure, and little gear 8 is arranged on pinion shaft 9, and pinion shaft 9 passes through L plate 7 and little gear
The two ends of axle 9 are all connected with box body 1, and pinion shaft 9 is provided with double loop travel switch and/or single loop travel switch；Double
Loop travel switch includes automatic centering expansion coupling sleeve 10, cam 11 and heat resistant type double loop limit switch 12, and several are certainly
Dynamic centering bulging joining sleeve 10 is sleeved on pinion shaft 9, and automatic centering expansion coupling sleeve 10 is provided with cam 11, cam 11
Contact with heat resistant type double loop limit switch 12, heat resistant type double loop limit switch 12 is fixed on U-shaped plate 14, heat resistant type is double
Loop limit switch 12 is connected with connecting terminal block 15；Single loop travel switch includes automatic centering expansion coupling sleeve 10, cam
11 and Half Close Plant Type of Hybrid encapsulation switch 13, several automatic centering expansion coupling sleeves 10 are sleeved on pinion shaft 9, and self-centering is swollen
Cam 11 is provided with tight coupling sleeve 10, cam 11 is contacted with Half Close Plant Type of Hybrid encapsulation switch 13, and Half Close Plant Type of Hybrid encapsulates switch 13
It is fixed on U-shaped plate 14, Half Close Plant Type of Hybrid encapsulation switch 13 is connected with connecting terminal block 15；Automatic centering expansion coupling sleeve 10 is one
Kind of keyless joint device, its principle and purposes are the effects by high strength tension bolt, between internal ring and axle, outer shroud and wheel
Huge enclasping force is produced, to realize the keyless joint of parts and axle between hub；Make driving lever 2 edge when steam turbine valve backward stick action
Axis rotation (no more than 90 degree), shift lever axis drive gear wheel 5 to rotate, and gear wheel 5 drives little gear 8 to rotate and (counts and compare 3:1), little
Cam 11 on gear shaft 9 accordingly carries out set angle rotation therewith, and the convex surface of the cam 11 of setting makes corresponding limit switch
Complete normally opened, normally closed action, export the signal of telecommunication.
Embodiment two
As shown in Figure 1-Figure 3, the steam turbine switch enclosure generating electricity for fire, including box body 1, driving lever 2, gear wheel 5, little gear
8 and connecting terminal block 15, the front of box body 1 is provided with polyester transparent plate 4, and the side within box body 1 is provided with L plate 7, the top of L plate 7
Portion is provided with U-shaped plate 14, and U-shaped plate 14 is provided with connecting terminal block 15, and L plate 7 is connected with Large Gear Shaft 6, and Large Gear Shaft 6 is worn
Go out box body 1 to be connected with driving lever 2, gear wheel 5 is arranged in Large Gear Shaft 6, gear wheel 5 is engaged with little gear 8 and arranges up and down, greatly
Gear 5 and little gear 8 are helical teeth structure, and little gear 8 is arranged on pinion shaft 9, and pinion shaft 9 passes through L plate 7 and pinion shaft
9 two ends are all connected with box body 1, and pinion shaft 9 is provided with double loop travel switch and/or single loop travel switch；Double back
Road travel switch includes automatic centering expansion coupling sleeve 10, cam 11 and heat resistant type double loop limit switch 12, and several are automatic
Centering bulging joining sleeve 10 is sleeved on pinion shaft 9, and automatic centering expansion coupling sleeve 10 is provided with cam 11, cam 11 with
Heat resistant type double loop limit switch 12 contacts, and heat resistant type double loop limit switch 12 is fixed on U-shaped plate 14, heat resistant type double back
Road limit switch 12 is connected with connecting terminal block 15；Single loop travel switch includes automatic centering expansion coupling sleeve 10, cam 11
Encapsulate switch 13 with Half Close Plant Type of Hybrid, several automatic centering expansion coupling sleeves 10 are sleeved on pinion shaft 9, automatic centering expansion
Cam 11 is provided with coupling sleeve 10, cam 11 is contacted with Half Close Plant Type of Hybrid encapsulation switch 13, and Half Close Plant Type of Hybrid encapsulation switch 13 is solid
It is scheduled on U-shaped plate 14, Half Close Plant Type of Hybrid encapsulation switch 13 is connected with connecting terminal block 15；Automatic centering expansion coupling sleeve 10 is a kind of
Keyless joint device, its principle and purposes are the effects by high strength tension bolt, between internal ring and axle, outer shroud and wheel hub
Between produce huge enclasping force, to realize the keyless joint of parts and axle；Make driving lever 2 when steam turbine valve backward stick action along axle
The heart rotates (no more than 90 degree), and shift lever axis drive gear wheel 5 to rotate, and gear wheel 5 drives little gear 8 to rotate and (counts and compare 3:1), little tooth
Cam 11 on wheel shaft 9 accordingly carries out set angle rotation therewith, and the convex surface of the cam 11 of setting makes corresponding limit switch complete
Become normally opened, normally closed action, export telecommunications.
The present invention have passed through substantial amounts of performance test and reliability test, you can for nuclear power generation, can be used for fire generating again,
Enormously simplify the structure of external product it is achieved that achieving more output function, overall lightweight, fall with less part
Low production cost, lifts cost performance, has more surmounted the performance of external product, this technology is no longer abroad monopolized, and is significantly beneficial to
The development of domestic generating cause.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (5)
1. steam turbine switch enclosure it is characterised in that：Including box body (1), driving lever (2), gear wheel (5), little gear (8) and terminals
Son row (15), the internal side of box body (1) is provided with L plate (7), and the top of L plate (7) is provided with U-shaped plate (14), U-shaped plate (14)
On connecting terminal block (15) is installed, L plate (7) is connected with Large Gear Shaft (6), Large Gear Shaft (6) passes box body (1) and driving lever
(2) connect, gear wheel (5) is arranged in Large Gear Shaft (6), and gear wheel (5) is engaged with little gear (8) and arranges up and down, little tooth
Wheel (8) is arranged on pinion shaft (9), pinion shaft (9) pass through the two ends of L plate (7) and pinion shaft (9) all with box body (1)
Connect, pinion shaft (9) is provided with double loop travel switch and/or single loop travel switch；
Double loop travel switch includes automatic centering expansion coupling sleeve (10), cam (11) and heat resistant type double loop limit switch
(12), several automatic centering expansion coupling sleeves (10) are sleeved on pinion shaft (9), on automatic centering expansion coupling sleeve (10)
Cam (11) is installed, cam (11) is contacted with heat resistant type double loop limit switch (12), heat resistant type double loop limit switch
(12) it is fixed on U-shaped plate (14), heat resistant type double loop limit switch (12) is connected with connecting terminal block (15)；
Single loop travel switch includes automatic centering expansion coupling sleeve (10), cam (11) and Half Close Plant Type of Hybrid encapsulation switch (13),
Several automatic centering expansion coupling sleeves (10) are sleeved on pinion shaft (9), and automatic centering expansion coupling sleeve (10) is upper to be installed
There is cam (11), cam (11) is contacted with Half Close Plant Type of Hybrid encapsulation switch (13), and Half Close Plant Type of Hybrid encapsulation switch (13) is fixed on U-shaped
On plate (14), Half Close Plant Type of Hybrid encapsulation switch (13) is connected with connecting terminal block (15).
2. steam turbine switch enclosure according to claim 1 it is characterised in that：It is saturating that the front of described box body (1) is provided with polyester
Isotropic disk (4).
3. steam turbine switch enclosure according to claim 1 it is characterised in that：Described gear wheel (5) and little gear (8) are
Straight tooth structure.
4. steam turbine switch enclosure according to claim 3 it is characterised in that：It is installed with tooth on described driving lever (2)
Embedded-type clutch (3), jaw clutch (3) is sleeved in Large Gear Shaft (6) and is located at the outside of box body (1).
5. steam turbine switch enclosure according to claim 1 it is characterised in that：Described gear wheel (5) and little gear (8) are
Helical teeth structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305781.XA CN104835663B (en) | 2015-06-05 | 2015-06-05 | Steam turbine switch enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305781.XA CN104835663B (en) | 2015-06-05 | 2015-06-05 | Steam turbine switch enclosure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104835663A CN104835663A (en) | 2015-08-12 |
| CN104835663B true CN104835663B (en) | 2017-03-01 |
Family
ID=53813482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510305781.XA Active CN104835663B (en) | 2015-06-05 | 2015-06-05 | Steam turbine switch enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104835663B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404062A (en) * | 2018-12-08 | 2019-03-01 | 庞厚星 | Thermal power generation steam turbine valve cam main axis of dilatation and cam switch box |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1207969A (en) * | 1966-12-15 | 1970-10-07 | Rotork Controls | Improvements in or relating to electric switch controls units for electric motor driven actuators |
| KR100313975B1 (en) * | 1997-10-03 | 2002-08-24 | 세이부덴키 가부시키가이샤 | Actuator device for valve driving |
| US7105801B2 (en) * | 2004-04-02 | 2006-09-12 | Itt Manufacturing Enterprises, Inc. | Actuator with interrupter-type limit switches |
| KR100886961B1 (en) * | 2008-09-29 | 2009-03-09 | 주식회사알피엠텍 | Hydraulic actuators for multi-turn |
| CN102913667A (en) * | 2012-09-20 | 2013-02-06 | 常州电站辅机总厂有限公司 | Nuclear-grade direct-current valve electric device for pressurized water reactor nuclear plant |
| CN204651193U (en) * | 2015-06-05 | 2015-09-16 | 哈尔滨汽轮机厂有限责任公司自动控制工程分公司 | Steam turbine switch enclosure |
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2015
- 2015-06-05 CN CN201510305781.XA patent/CN104835663B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104835663A (en) | 2015-08-12 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Hongwei Inventor after: Liu Xiandong Inventor after: Guo Dejun Inventor after: Fan Wenjin Inventor after: Zhang Shaokang Inventor after: Luo Zhenkun Inventor after: Zhao Zhiming Inventor after: Pang Houxing Inventor before: Jin Hongwei Inventor before: Liu Xiandong Inventor before: Guo Dejun Inventor before: Fan Wenjin Inventor before: Zhang Shaokang Inventor before: Luo Kun Inventor before: Zhao Zhiming Inventor before: Pang Houxing |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |