CN208969211U - A kind of breaker operation mechanism test fixture - Google Patents
A kind of breaker operation mechanism test fixture Download PDFInfo
- Publication number
- CN208969211U CN208969211U CN201821692052.XU CN201821692052U CN208969211U CN 208969211 U CN208969211 U CN 208969211U CN 201821692052 U CN201821692052 U CN 201821692052U CN 208969211 U CN208969211 U CN 208969211U
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- Prior art keywords
- pawl
- driving wheel
- bayonet
- cam
- shaft
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Abstract
The utility model provides a kind of breaker operation mechanism test fixture, can rapidly be tested operating mechanism.The breaker operation mechanism test fixture include include the pedestal for being used to support operating mechanism to be detected, pedestal is equipped with the rotation mechanism for testing for driving the input shaft movement of operating mechanism to be detected to realize divide-shut brake movement, the rotation mechanism for testing includes the shaft with input shaft transmission connection, further includes the driving wheel with shaft coaxial arrangement；Cam is fixedly installed in the shaft, it is swung on driving wheel and is equipped with the pawl in cam side, the bayonet being caught in for pawl is offered on cam, pawl in oscillating stroke have be caught in bayonet be caught in position and that exits out of bayonet exits position, the driving wheel, to drive shaft to rotate, is additionally provided in driving wheel rotational travel in the rotation mechanism for testing and is adapted to the pawl so that the position limiting slide block that pawl is exited from the bayonet of cam by pawl push cam.
Description
Technical field
The utility model relates to running-in testing apparatus technical fields, and in particular to a kind of breaker operation mechanism test work
Dress.
Background technique
Breaker is a kind of important switchgear in electric system, for realizing the cutting of grid power transmission and leading
Logical, the operating mechanism of breaker is the power part of breaker, when breaker, which receives system, to be cut-off with closure signal, actuating
Mechanism drives the ontology of breaker to carry out separating brake or closing operation, to realize cut-offfing and being closed for electric current, it may be said that actuating machine
The reliability of structure has directly influenced the Interruption performance of breaker, determines the major mechanical characteristic of breaker.So in order to protect
The reliability for demonstrate,proving operating mechanism needs to carry out multi-pass operation test and machinery to operating mechanism when operating mechanism comes into operation
Service life adjustment test.
But since the volume of breaker entirety is larger, part is more, can not directly test a large amount of breaker,
And operating mechanism is directly tested in not erection load on operating mechanism, can not accurately and reliably reflect and go out for drill
Operating status of the motivation structure in breaker in actual work, but tested respectively using artificial method, efficiency and survey
Test result not can guarantee.So now needing a kind of breaker actuating machine to realize that the operating mechanism to breaker is tested
Structure test fixture quickly and reliably tests operating mechanism to realize.
Utility model content
The purpose of this utility model is to provide a kind of breaker operation mechanism test fixtures, are able to solve in the prior art
The low problem of testing efficiency is carried out to operating mechanism.
To achieve the above objectives, the present invention adopts the following technical solutions:
Breaker operation mechanism test fixture, the pedestal including being used to support operating mechanism to be detected, pedestal are equipped with
The input shaft of operating mechanism to be detected is driven to act the rotation mechanism for testing to realize divide-shut brake movement, the rotation test machine
Structure includes for being sequentially connected with input shaft with the shaft with driven input shaft positive and negative rotation, further includes being coaxially disposed and driving with shaft
The driving wheel of shaft rotation；It is fixedly installed cam in the shaft, is swung on driving wheel and is equipped with the spine in cam side
Pawl offers the bayonet being caught in for pawl on cam, and pawl has to be caught in bayonet in oscillating stroke to be rotated with push cam
Be caught in position and exited out of bayonet to exit position with what cam was detached from cooperation, the driving wheel is by pawl push cam with band
The rotation of turn axis, be additionally provided in driving wheel rotational travel in the rotation mechanism for testing be adapted to the pawl so that pawl from
The position limiting slide block exited in the bayonet of cam；The rotation mechanism for testing further includes the driving motor for driving driving wheel to rotate
With the controller of control driving motor positive and negative rotation, there are two the bayonet settings, one of them is when driving wheel is rotated forward for spine
The rotating forward bayonet that pawl is caught in, another is the reversion bayonet being caught in driving wheel reversion for pawl.
The beneficial effect is that: it is rotated by pawl push cam band moving cam and shaft, pawl snaps onto motion process
In the bayonet of cam, cooperation precision is higher, and when cam driven shaft and input shaft rotate, stable action can grasp breaker
Motivation structure carries out reliable, stable test；In addition, only driving the input of breaker operation mechanism when cam and click-fit
Axis rotates an angle less than 360 °, can subtly be checked operating mechanism, and this rotational angle is not big
Movement also can be improved the adjustment degree of operating mechanism；By the breaker operation mechanism test fixture of the utility model to behaviour
Motivation structure is tested, pawl and rotating forward bayonet, reversion bayonet cooperation, can be quickly and reliably by driving motor positive and negative rotation
The positive and negative rotation movement for simulating operating mechanism, improves the testing efficiency to breaker operation mechanism.
Further, the rotation mechanism for testing further includes the travel switch being adapted to the driving wheel, and the stroke is opened
Close the signal input part for the controller.
The beneficial effect is that: using travel switch as the signal input part of controller, travel switch passes through machinery
Outside output signal is acted, structure is simple, at low cost.
Further, the driving wheel is equipped with the block rotated with driving wheel, rotation row of the block in driving wheel
The triggering of travel switch described in Cheng Zhongyu cooperation is to realize the positive and negative rotation for controlling driving motor.
The beneficial effect is that: cooperated using block with travel switch, is touched between block and travel switch by machinery
It hits and carrys out outside output signal, high reliablity does not need excessive electric control structure.
Further, the driving wheel is sprocket wheel.
The beneficial effect is that: sprocket wheel is used, convenient for being integrally arranged to tooling, to reduce the whole ruler of tooling
It is very little.
Further, there are two the pawl settings, the rotating forward pawl rotated forward with driven input shaft and realization are respectively realized
Reversion pawl with driven input shaft reversion, the rotating forward pawl is corresponding with bayonet is rotated forward, and reversion pawl is corresponding with reversion bayonet；Institute
It states to be additionally provided on driving wheel and elastic force is applied to rotating forward pawl to prevent rotating forward pawl from being caught in the elastic component of reversion bayonet, the driving
It is additionally provided on wheel and elastic force is applied to reversion pawl to prevent reversion pawl from being caught in the elastic component of rotating forward bayonet.
The beneficial effect is that: pawl is arranged two, respectively rotating forward pawl and reversion pawl, to make shaft just
Reversion movement is relatively reliable, in addition, the elastic component being arranged on the drive wheel, can be avoided pawl and enters in the bayonet of mistake, into
Improve to one step the safety of shaft movement.
Further, the elastic component is fixed elastic slice on the drive wheel, and the section of the pawl is diamond shape, wherein one
End is the pushing end for cooperating with cam pushing tow, and the other end is to press abutting end with the elastic component of elastic component press cooperation.
The beneficial effect is that: elastic slice is set by elastic component, structure is simple, with the click-fit cooperation that section is diamond shape
It is more stable.
Further, the pawl contacted always with cam with when driving wheel is rotated by the friction between pawl and cam
Power band pawl is swung.
The beneficial effect is that: pawl, always with cam contact, drives in driving wheel rotation process by frictional force
Pawl is swung, and is reduced other devices of control pawl and cam engagement, is simplified the structure of test fixture entirety.
Further, the collar stop of the lower section of driving wheel is arranged in the position limiting slide block.
The beneficial effect is that: collar stop is set by position limiting slide block, is convenient for and click-fit, makes pawl out of bayonet
It exits.
Detailed description of the invention
Solid is shown when Fig. 1 is the cooperation of breaker operation mechanism test fixture and breaker operation mechanism in the utility model
It is intended to；
Fig. 2 is that the mated condition of breaker operation mechanism test fixture and breaker operation mechanism is faced in the utility model
Figure；
Fig. 3 is the top plan of breaker operation mechanism test fixture in the utility model；
Fig. 4 is the top perspective view of breaker operation mechanism test fixture in the utility model；
Fig. 5 is that a kind of mated condition of the pawl of breaker operation mechanism test fixture and cam is illustrated in the utility model
Figure；
Fig. 6 is that the pawl of breaker operation mechanism test fixture and another mated condition of cam are shown in the utility model
It is intended to；
Fig. 7 is the bottom view of breaker operation mechanism test fixture in the utility model.
In figure: 1. pedestals；11. mounting plate；12. support plate；13. bearing box；2. rotating mechanism for testing；21. shaft；211.
Cam；212. bayonet；22. axle sleeve；23. sprocket wheel；231. pawl；232. elastic component；24. driving motor；25. driving wheel；26. chain
Item；27. block；28. position limiting slide block；29. travel switch；3. operating mechanism to be detected；31. input shaft；32. output shaft；4.
Mechanism loading；41. cylinder；42. connecting lever；43. spring pull rod；44. excess of stroke spring；45. articulated joint.
Specific embodiment
To carry out the specific embodiment of the breaker operation mechanism test fixture in the utility model now in conjunction with attached drawing
Illustrate, as shown in Figures 1 and 2, breaker operation mechanism test fixture includes pedestal 1, and pedestal 1 combines shape with tubing by plate
At, pedestal 1 is from top to bottom sequentially arranged the rotation mechanism for testing 2 for driving the input shaft 31 of operating mechanism 3 to be detected to rotate,
The mechanism loading 4 connecting with the output shaft 32 of operating mechanism 3 to be detected, the setting of operating mechanism 3 to be detected are tested in rotation
Between mechanism 2 and mechanism loading 4, input shaft 31 rotates under the drive of rotation mechanism for testing 2, and imparts power to actuating machine
Output shaft 32 in structure, output shaft 32 drive the movement of mechanism loading 4 to act with this divide-shut brake for carrying out mimic-disconnecting switch again.
As shown in Figures 3 and 4, rotation mechanism for testing 2 includes the shaft 21 being arranged in a vertical direction, the outer peripheral surface of shaft 21
On be arranged with bearing, be provided with driving wheel on the outside of bearing, driving wheel by bearing can be realized with shaft 21 relatively freely
Rotation.The lower end of shaft 21 is connect by axle sleeve 22 with the input shaft 31 of operating mechanism 3 to be detected, is provided in axle sleeve 22
The end of square hole, shaft 21 and input shaft 31 is provided with square shaft, two square shafts and the square hole block when relatively rotating and cooperates, the side of passing through
The positive of axis and square hole realizes the relative rotation of input shaft 31 Yu shaft 21.
As shown in Figures 5 and 6, driving wheel is the biggish sprocket wheel 23 of radial dimension, accordingly in rotation mechanism for testing 2 also
It is provided with the driving wheel 25 being sequentially connected with sprocket wheel 23, driving wheel 25 is sequentially connected with the driving motor 24 as power source, and
The transmission connection with sprocket wheel 23 is realized by chain 26.Sprocket wheel 23 is around the shaft 21 under the drive of driving motor 24 and driving wheel 25
Rotation, is provided with pawl 231 of the rolling assembling on sprocket wheel 23, pawl 231 can be relative to chain on the downside of sprocket wheel 23
23 rotation of wheel will drive 21 rotation around the shaft of pawl 231 when sprocket wheel 23 rotates.It is arranged in shaft 21 relative to pawl 231
There is the cam 211 cooperated with pawl 231, realization is connected by key between cam 211 and shaft 21 and is rotated synchronously, cam 211
Shape is configured according to actual rotation situation, and the bayonet 212 being caught in for pawl 231 is provided on the outer profile of cam 211,
There are two the settings of bayonet 212, and respectively rotating forward bayonet and reversion bayonet, pawl are driven by that can cross realization from the cooperation of different bayonets
Shaft 21 is corresponding forward or reverse.Pawl 231, which has to be caught in bayonet in oscillating stroke, is caught in position with push cam rotation
With exited out of bayonet with cam be detached from cooperation exit position.It is and convex after pawl 231 is in the bayonet 212 for being caught in cam 211
The medial surface block cooperation of wheel 211, the push cam 211 under the drive of sprocket wheel 23 of pawl 231, cam 211 drive shaft 21 again
And input shaft 31 rotate, thus realize substitution manual rotation's operating mechanism input shaft 31, pawl contacted always with cam with
It is swung when driving wheel rotates by the frictional force band pawl between pawl and cam.
As shown in fig. 7, the input shaft 31 of operating mechanism imparts power to the output shaft 32 of operating mechanism, output after rotating
Axis 32 is located at the lower section of input shaft 31, and the support plate 12 arranged in the horizontal direction is provided on pedestal 1, is opened up in support plate 12
The through-hole for having the bottom end of output shaft 32 to be pierced by from the top of support plate 12 is provided with bearing box 13 in through hole, in bearing box 13
It is provided with the bearing with the cooperation of the bottom end of output shaft 32, the bearing engaged therewith in rotation of output shaft 32 can disperse output shaft
The impact force of 32 pairs of support plates 12 reduces the abrasion of support plate 12 and output shaft 32.The bottom end of output shaft 32 is connected to load machine
Structure 4, mechanism loading 4 include two parts, and a part is the connecting lever 42 hinged with output shaft 32, and connecting lever 42 is along horizontal direction cloth
It sets, can the swing of connecting lever 42 in the horizontal direction that is converted to of output shaft 32 be hinged with and be stretched in the other end of connecting lever 42
Contracting bar, connecting lever 42 are able to drive telescopic rod movement during swing.Telescopic rod includes cylinder 41 and is plugged in cylinder 41
Spring pull rod 43,43 one end of spring pull rod and connecting lever 42 are hinged, and the other end, which is submerged in cylinder 41 and is oriented to cylinder 41, to be cooperated.
In design, the length of spring pull rod 43 is longer, will not deviate from out of cylinder 41 when connecting lever 42 is rotated.It is arranged on pedestal 1
Have with the vertically arranged mounting plate 11 of support plate 12, free bearing is provided on mounting plate 11, cylinder 41 is relative to spring pull rod 43
One end be bolted with articulated joint 45, cylinder 41 is realized hinged with the free bearing on mounting plate 11 by articulated joint 45.In spring pull rod
Excess of stroke spring 44 is provided between 43 and cylinder 41, excess of stroke spring 44 can provide damping action for the rotation of connecting lever 42.Entire load
Mechanism 4 and operating mechanism cooperation true working environment when can simulate operating mechanism assembly on-board the circuit breaker, can either subtract
To the impact force of entire test fixture when few operating mechanism zero load adjustment, and the adjustment of operating mechanism can be made more really may be used
It leans on.
In order to realize shaft 21 forward or reverse, and the separating brake or feed motion of mimic-disconnecting switch according to this, it is tested in rotation
The reversing arrangement for realizing 23 forward and backward of sprocket wheel is additionally provided in mechanism 2, as shown in Figures 3 and 4, reversing arrangement includes that fixation is set
The block 27 in 23 upper side of sprocket wheel is set, block 27 can rotate together in the rotation process of sprocket wheel 23 with sprocket wheel 23, corresponding
Ground is provided with the travel switch 29 being engaged with block 27 on the bracket of support rotating mechanism for testing 2, and travel switch 29 exists
On corresponding position there are two settings, block 27 and the cooperation of travel switch 29 are triggered when sprocket wheel 23 rotates, and travel switch 29 issues letter
Number give driving motor 24 controller, controller control again make driving motor 24 invert, thus realize band movable sprocket 23 and shaft
21 rotate backward, and make shaft 21 that output shaft 32 be driven to simulate switching on and off movement.
But in order to safely realize the forward and backward of shaft 21, need to guarantee sprocket wheel when 21 rotation direction of shaft changes
Therefore 23 are provided with the position limiting slide block 28 arranged by predetermined stroke with the disconnection of shaft 21 as shown in Figures 3 and 4, on bracket,
When sprocket wheel 23 rotates, because pawl 231 is in the bayonet 212 for snap onto cam 211, sprocket wheel 23 turns to predetermined position
When, position limiting slide block 28 stops pawl 231, exits pawl 231 from the bayonet 212 of cam 211, to realize sprocket wheel
23 are detached from cooperation with shaft 21.After sprocket wheel 23 and shaft 21, which are detached from, to be cooperated, the movement of shaft 21 is no longer influenced by limitation, to sprocket wheel
23 changes turned to will not hurt shaft 21, after shaft 21 and sprocket wheel 23 are detached from, then carry out above-mentioned go to action.It is right
Answer on the sprocket wheel 23 as driving wheel, be provided with two pawls 231 in the rotational travel, respectively rotating forward pawl and
Invert the rotating forward bayonet and reversion bayonet corresponding matching on pawl, with cam.Meanwhile in order to prevent pawl 231 from bayonet 212
It is swung after abjection, the elastic component 232 being additionally provided on sprocket wheel 23 in the bayonet for making pawl 231 avoid enter into mistake, elastic component
232 pairs of rotating forward pawls apply elastic force to prevent to rotate forward pawl and be caught in reversion bayonet, apply elastic force to reversion pawl to prevent to invert
Pawl is caught in rotating forward bayonet, and wherein elastic component 232 is preferably the simple elastic slice of structure, and the section of pawl is correspondingly arranged as water chestnut
Shape, wherein one end of pawl are the pushing end for cooperating with cam pushing tow, and the other end is the elasticity with elastic component press cooperation
Part presses abutting end.
In other embodiments, pawl can be provided only with one.
In other embodiments, the input terminal of controller may be arranged as photoelectric sensor, and correspondence is set on the drive wheel
It is equipped with label, the receiver of counting corresponding with label is provided on breaker operation mechanism test fixture.
In other embodiments, mechanism loading can also be not provided in breaker operation mechanism test fixture, but allow to
The operating mechanism of test carries out idle running.
Above-described specific embodiment, purpose of utility model, technical scheme and beneficial effects to the utility model
It has been further described, it should be understood that the foregoing is merely specific embodiment of the present utility model, and
Be not used in the restriction protection scope of the utility model, it is all within the spirit and principles of the present invention, done any repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.
Claims (8)
1. breaker operation mechanism test fixture, it is characterised in that: the pedestal including being used to support operating mechanism to be detected, bottom
Seat is equipped with the rotation mechanism for testing for driving the input shaft movement of operating mechanism to be detected to realize divide-shut brake movement, and described turn
Dynamic mechanism for testing includes for being sequentially connected with input shaft with the shaft with driven input shaft positive and negative rotation, further includes coaxially setting with shaft
The driving wheel set and shaft is driven to rotate；It is fixedly installed cam in the shaft, swings and is equipped in cam on driving wheel
The pawl of side offers the bayonet being caught in for pawl on cam, and pawl has in oscillating stroke to be caught in bayonet with pushing tow
What cam rotated is caught in position and is exited out of bayonet to be detached from the position of exiting of cooperation with cam, and the driving wheel passes through pawl pushing tow
Cam to drive shaft to rotate, be additionally provided in driving wheel rotational travel in the rotation mechanism for testing be adapted to the pawl with
The position limiting slide block for exiting pawl from the bayonet of cam；The rotation mechanism for testing further includes for driving driving wheel to rotate
The controller of driving motor and control driving motor positive and negative rotation, there are two bayonet settings, one of them be driving wheel just
The rotating forward bayonet being caught in when turning for pawl, another is the reversion bayonet being caught in driving wheel reversion for pawl.
2. breaker operation mechanism test fixture according to claim 1, it is characterised in that: the rotation mechanism for testing is also
Including the travel switch being adapted to the driving wheel, the travel switch is the signal input part of the controller.
3. breaker operation mechanism test fixture according to claim 2, it is characterised in that: the driving wheel be equipped with
The block of driving wheel rotation, the block, which triggers in the rotational travel of driving wheel with the travel switch, to be cooperated to realize control
The positive and negative rotation of driving motor.
4. breaker operation mechanism test fixture according to any one of claim 1-3, it is characterised in that: the driving
Wheel is sprocket wheel.
5. breaker operation mechanism test fixture according to any one of claim 1-3, it is characterised in that: the pawl
There are two settings, respectively realizes the rotating forward pawl rotated forward with driven input shaft and realizes the reversion pawl inverted with driven input shaft,
The rotating forward pawl is corresponding with bayonet is rotated forward, and reversion pawl is corresponding with reversion bayonet；It is additionally provided on the driving wheel to rotating forward spine
Pawl applies elastic force to prevent rotating forward pawl from being caught in the elastic component of reversion bayonet, is additionally provided on the driving wheel and applies to reversion pawl
Elastic force is to prevent reversion pawl from being caught in the elastic component of rotating forward bayonet.
6. breaker operation mechanism test fixture according to claim 5, it is characterised in that: the elastic component is to be fixed on
Elastic slice on driving wheel, the section of the pawl are diamond shape, and wherein one end is the pushing end for cooperating with cam pushing tow, another
End is the elastic component press abutting end with elastic component press cooperation.
7. breaker operation mechanism test fixture according to any one of claim 1-3, it is characterised in that: the pawl
It is contacted always with cam to be swung when driving wheel is rotated by the frictional force band pawl between pawl and cam.
8. breaker operation mechanism test fixture according to claim 1, it is characterised in that: the position limiting slide block setting exists
The collar stop of the lower section of driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821692052.XU CN208969211U (en) | 2018-10-18 | 2018-10-18 | A kind of breaker operation mechanism test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821692052.XU CN208969211U (en) | 2018-10-18 | 2018-10-18 | A kind of breaker operation mechanism test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN208969211U true CN208969211U (en) | 2019-06-11 |
Family
ID=66758253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821692052.XU Active CN208969211U (en) | 2018-10-18 | 2018-10-18 | A kind of breaker operation mechanism test fixture |
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| Country | Link |
|---|---|
| CN (1) | CN208969211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283463A (en) * | 2018-10-18 | 2019-01-29 | 河南华盛隆源电气有限公司 | Breaker operation mechanism test fixture |
-
2018
- 2018-10-18 CN CN201821692052.XU patent/CN208969211U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283463A (en) * | 2018-10-18 | 2019-01-29 | 河南华盛隆源电气有限公司 | Breaker operation mechanism test fixture |
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