CN114883962B - Grabbing and dragging mechanism of circuit breaker - Google Patents

Grabbing and dragging mechanism of circuit breaker Download PDF

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Publication number
CN114883962B
CN114883962B CN202210590402.6A CN202210590402A CN114883962B CN 114883962 B CN114883962 B CN 114883962B CN 202210590402 A CN202210590402 A CN 202210590402A CN 114883962 B CN114883962 B CN 114883962B
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CN
China
Prior art keywords
circuit breaker
sliding
assembly
plate
grabbing
Prior art date
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Active
Application number
CN202210590402.6A
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Chinese (zh)
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CN114883962A (en
Inventor
段志国
吴灏
王淇锋
许晓
彭紫楠
郭宁辉
李炀
张梦珍
王少博
辛庆山
冯华君
李明
闫人滏
崔倩雯
傅伯雄
董璇
孙晓龙
刘哲
苏克
张梦茜
王钊
边金忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Tuopu Electricity Co ltd
State Grid Corp of China SGCC
Shijiazhuang Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
Hebei Tuopu Electricity Co ltd
State Grid Corp of China SGCC
Shijiazhuang Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Publication date
Application filed by Hebei Tuopu Electricity Co ltd, State Grid Corp of China SGCC, Shijiazhuang Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical Hebei Tuopu Electricity Co ltd
Priority to CN202210590402.6A priority Critical patent/CN114883962B/en
Publication of CN114883962A publication Critical patent/CN114883962A/en
Application granted granted Critical
Publication of CN114883962B publication Critical patent/CN114883962B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Abstract

The invention provides a grabbing and dragging mechanism of a circuit breaker, which belongs to the technical field of power equipment and comprises a sliding plate, a linear driving assembly, a sliding connecting plate and two groups of gripper assemblies, wherein the linear driving assembly is assembled on the sliding plate; the sliding connecting plate is connected to the linear driving assembly; the two groups of gripper assemblies are symmetrically arranged on the sliding connecting plate; the linear driving assembly drives the sliding connecting plate to move forwards, so that the handles of the handle assembly grab the handles on the circuit breaker and move backwards to drag the circuit breaker out of the power distribution cabinet. According to the circuit breaker grabbing and dragging mechanism, the linear driving assembly is used for driving the gripper assembly to move forwards, the gripper assembly is used for gripping a handle of the circuit breaker, and then the gripper assembly is driven by the linear driving assembly to move backwards, so that the circuit breaker can be dragged out of the power distribution cabinet. When the breaker is replaced or maintained, the manual labor intensity is greatly reduced, the labor burden of operators is lightened, and the working efficiency is improved.

Description

Grabbing and dragging mechanism of circuit breaker
Technical Field
The invention belongs to the technical field of electric power facilities, and particularly relates to a grabbing and dragging mechanism of a circuit breaker.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time.
The handcart-type circuit breaker is large in size and weight, and the traditional manual push-pull moving replacement mode is high in labor intensity and time-consuming and labor-consuming.
Disclosure of Invention
The embodiment of the invention provides a grabbing and dragging mechanism of a circuit breaker, which aims to reduce the labor intensity of workers during replacement of the circuit breaker and improve the working efficiency.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is a circuit breaker grabbing and dragging mechanism, comprising: the sliding plate comprises a sliding plate, a linear driving assembly, a sliding connecting plate and two groups of gripper assemblies, wherein the linear driving assembly is assembled on the sliding plate; the sliding connecting plate is connected to the linear driving assembly; the two groups of gripper assemblies are symmetrically arranged on the sliding connecting plate; the linear driving assembly drives the sliding connection plate to move forwards, so that the handles of the handle assembly grasp the handles on the circuit breaker and move backwards to drag the circuit breaker out of the power distribution cabinet.
In one possible implementation manner, the gripper assembly comprises the gripper, a rotating shaft and a grabbing cylinder, wherein the gripper is assembled on the rotating shaft, two ends of the rotating shaft are assembled on the sliding connecting plate through bearing seats, a cylinder body of the grabbing cylinder is hinged on the sliding connecting plate, and a telescopic rod of the grabbing cylinder is hinged on a crank arm assembled on the rotating shaft; the telescopic rod of the grabbing cylinder extends forwards to drive the rotating shaft to drive the gripper to overturn downwards, and the handle is grabbed.
In one possible implementation manner, the gripper assembly further comprises an adjusting cylinder and a sliding block which is assembled on the rotating shaft in a sliding manner, the gripper is fixed on the sliding block, a cylinder body of the adjusting cylinder is fixed on the gripper, and a telescopic rod of the adjusting cylinder is connected with the crank arm; the rotating shaft is provided with an anti-rotating structure capable of preventing the sliding block from rotating.
In one possible implementation, the telescopic rod of the adjusting cylinder is connected with the crank arm through a floating joint.
In one possible implementation, the anti-rotation structure is an anti-rotation plane disposed on the rotating shaft.
In one possible implementation manner, the crank arm comprises a shaft sleeve assembled on the rotating shaft, and an outer support arm and an inner support arm which are radially connected to the shaft sleeve, the outer support arm and the inner support arm are axially arranged in a staggered mode, a telescopic rod of the grabbing cylinder is hinged to the outer support arm, and a telescopic rod of the adjusting cylinder is connected to the inner support arm.
In one possible implementation manner, the circuit breaker grabbing and pulling mechanism further comprises a switching operation assembly, wherein the switching operation assembly is arranged on the sliding connection plate and is positioned in the middle of the two groups of the gripper assemblies; the switching operation assembly comprises a screwing motor, a sleeve assembly, a push rod, a guide rail and a sliding seat, wherein the guide rail is fixed on the sliding connection plate, the sliding seat is in sliding fit with the guide rail, the screwing motor is fixed on the sliding seat, the sleeve assembly is assembled on a main shaft of the screwing motor, and the push rod is connected to the sliding seat.
In one possible implementation manner, the circuit breaker grabbing and dragging mechanism further comprises positioning components, the positioning components are arranged on two sides of the front end of the sliding plate, each positioning component comprises a support arranged at the front end of the sliding plate and a positioning pin fixed on the support, and each positioning pin is used for being inserted into a positioning hole in the power distribution cabinet.
In one possible implementation manner, the circuit breaker grabbing and dragging mechanism further comprises a locking assembly, the locking assembly is arranged at the middle position of the front end of the sliding plate, the locking assembly comprises a guide plate, a bending plate, a locking hook and a spring, the guide plate and the bending plate are connected to the front end of the sliding plate, the locking hook is hinged to the bending plate through a pin shaft and penetrates backwards through a guide hole in the guide plate, the spring is connected between the locking hook and an ear seat fixed on the sliding plate, and the locking hook is used for locking with a lock hole in a power distribution cabinet.
In one possible implementation, the left and right sides of the sliding plate are respectively provided with a supporting seat for supporting the circuit breaker.
Compared with the prior art, the circuit breaker grabbing and dragging mechanism provided by the invention has the beneficial effects that: the linear driving assembly is used for driving the handle assembly to move forwards, the handle assembly is used for gripping a handle of the circuit breaker, and then the circuit breaker can be pulled out of the power distribution cabinet after the handle assembly is driven by the linear driving assembly to move backwards. The circuit breaker grabbing and dragging mechanism provided by the embodiment can utilize power to drag out the circuit breaker in the cabinet body when the circuit breaker is replaced or maintained, and push the maintained or new circuit breaker into the cabinet body, so that the automatic dragging or pushing of the circuit breaker is realized, the labor intensity of workers is greatly reduced, the labor burden of operators is reduced, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a grabbing and pulling mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram II of a grabbing and dragging mechanism of a circuit breaker according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram III of a grabbing and dragging mechanism of a circuit breaker according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first embodiment of a handle assembly;
FIG. 5 is a second schematic structural view of a grip assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram III of a gripper assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a switching operation component according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a locking assembly according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a use state of a grabbing and pulling mechanism of a circuit breaker according to an embodiment of the present invention;
reference numerals illustrate:
1. a slide plate; 2. a support base; 21. section steel; 22. angle steel; 3. a gripper assembly; 31. grabbing an air cylinder; 32. adjusting a cylinder; 33. a grip; 34. a reinforcing plate; 35. a rotating shaft; 36. a bearing seat; 37. a crank arm; 38. tensioning sleeve; 39. a slide block; 4. a sliding connection plate; 5. a locking assembly; 51. an ear seat; 52. a spring; 53. a latch hook; 54. a pin shaft; 6. switching the operation assembly; 61. a sleeve assembly; 62. screwing the motor; 63. a push rod; 64. a guide rail; 65. a slide; 7. a linear drive assembly; 71. a driving motor; 72. a screw rod; 73. a slide rail; 8. a positioning assembly; 81. a support; 82. a positioning pin; 9. a bending plate; 91. a limiting hole; 10. a guide plate; 101. a guide hole; 11. a circuit breaker; 111. a handle; 112. an operation hole.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, if terms indicating azimuth or positional relationship such as "front", "rear", "left", "right" and the like appear, the positional relationship when the circuit breaker is pulled out of operation is that the direction toward the circuit breaker is that the direction away from the circuit breaker is that the direction is that the circuit breaker is back, only for convenience in describing the present invention and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present invention.
Referring to fig. 1 to 6 together, a description will now be given of a circuit breaker grabbing and pulling mechanism provided by the present invention. The breaker grabbing and dragging mechanism comprises a sliding plate 1, a linear driving assembly 7, a sliding connecting plate 4 and two groups of gripper assemblies 3, wherein the linear driving assembly 7 is assembled on the sliding plate 1; the sliding connection plate 4 is connected to the linear driving assembly 7; the two groups of gripper assemblies 3 are symmetrically arranged on the sliding connecting plate 4; the linear driving assembly 7 drives the sliding connection plate 4 to move forwards, so that the handles 33 of the handle assembly 3 grab the handles 111 on the circuit breaker 11 and move backwards to pull the circuit breaker 11 out of the power distribution cabinet.
Compared with the prior art, the circuit breaker 11 grabbing and dragging mechanism provided by the embodiment has the advantages that the linear driving assembly 7 is used for driving the gripper assembly 3 to move forwards, the gripper assembly 3 is used for gripping the handle 111 of the circuit breaker 11, and then the circuit breaker 11 can be dragged out of the power distribution cabinet after being driven by the linear driving assembly 7 to move backwards.
By utilizing the breaker 11 grabbing and dragging mechanism provided by the embodiment, when the breaker 11 is replaced or maintained, the breaker 11 in the cabinet body can be dragged out by utilizing power, and the maintained or new breaker 11 is pushed into the cabinet body, so that the automatic pulling out or pushing in of the breaker 11 is realized, the labor intensity of workers is greatly reduced, the labor burden of operators is reduced, and the working efficiency is improved.
Referring to fig. 9, in the process of specifically replacing the circuit breaker 11, the circuit breaker 11 grabbing and dragging mechanism provided in this embodiment is assembled on the three-dimensional moving platform, and through XYZ position adjustment of the three-dimensional moving platform, the accurate position of the grabbing and dragging mechanism to be located at the position to be replaced of the circuit breaker 11 can be realized, and each position adjustment can be realized through automatic control, and manual operation is not needed, so that time and labor are saved.
The linear driving assembly 7 provided in this embodiment, optionally, the linear driving assembly 7 is in a driving mode of a screw rod 72, and specifically includes a driving motor 71, a screw rod 72 connected with the driving motor 71, a nut screwed with the screw rod 72, and sliding rails 73 respectively provided on the left and right sides of the screw rod 72, the sliding rails 73 are fixed on the sliding plate 1, the driving motor 71 is fixed on the sliding plate 1, the lower surface of the sliding connection plate 4 is fixed on the nut, and the left and right sides of the lower surface of the sliding connection plate 4 are fixed on the sliding rails 73. The driving motor 71 drives the screw rod 72 to rotate and convert the rotation into linear movement of the screw nut, so that the sliding plate 1 is driven to reciprocate along the sliding rail 73, the gripper assembly 3 is enabled to approach the circuit breaker 11 forwards, and the circuit breaker 11 is pulled out backwards after the circuit breaker 11 is gripped.
In some embodiments, the linear driving assembly 7 may be other mechanisms capable of realizing linear movement, such as an electric push rod 63, an electric sliding table, and a cylinder driving.
Referring to fig. 1 to 6, a specific implementation manner of a grabbing and pulling mechanism of a circuit breaker 11 provided in this embodiment is shown, a gripper assembly 3 includes a gripper 33, a rotating shaft 35 and a grabbing cylinder 31, the gripper 33 is assembled on the rotating shaft 35, two ends of the rotating shaft 35 are assembled on a sliding connection plate 4 through bearing blocks 36, a cylinder body of the grabbing cylinder 31 is hinged on the sliding connection plate 4, and a telescopic rod of the grabbing cylinder 31 is hinged on a crank arm 37 assembled on the rotating shaft 35; the telescopic rod of the grabbing cylinder 31 extends forwards, and the driving shaft 35 drives the grippers 33 to overturn downwards to grab the handles 111.
The gripper assembly 3 works as follows: after the driving motor 71 is started to drive the sliding plate 1 to move forwards to the grabbing position of the circuit breaker 11, the telescopic rod of the grabbing cylinder 31 stretches forwards to push the rotating shaft 35 to rotate downwards, so that the gripper 33 can be driven to overturn downwards until the gripper 33 grabs the handle 111 on the chassis of the circuit breaker 11; the driving motor 71 rotates reversely to drive the screw rod 72 to rotate reversely, the screw rod moves backwards to drive the sliding plate 1 to move backwards, and the breaker 11 can move backwards along with the grabbing component until the breaker is separated from the power distribution cabinet and is dragged onto the sliding plate 1; the telescopic rod is retracted, so that the rotating shaft 35 can be driven to reversely rotate backwards, and the gripper 33 is separated from the handle 111. The breaker 11 is automatically grabbed by the air cylinder of the gripper assembly 3, the backward dragging of the breaker 11 is automatically realized by the power of the driving motor 71, the hands of an operator can be liberated, the labor intensity of the operator is lightened, accurate alignment can be realized by automatic control, and the problem that the manual hand-eye action needs to be grabbed in multiple times is also avoided.
Alternatively, as shown in fig. 1 to 6, the grip 33 is a sheet metal member that is bent so as to be able to grasp the pull handle 111. Meanwhile, in order to improve the strength of the grip 33, to prevent the grip 33 from being deformed during the pulling, a reinforcing plate 34 is attached to the grip 33, and in particular, the reinforcing plate 34 may be a rectangular steel pipe.
Alternatively, referring to fig. 1 to 6, a crank arm 37 is fitted to the outer end of the bearing housing 36 on the rotation shaft 35, and the grip 33 is fitted between the two bearing housings 36. Meanwhile, a tensioning sleeve 38 is arranged on a rotating shaft 35 for assembling the crank arm 37 to lock the crank arm 37. The tensioning sleeve 38 may be selected from a nut, and may be a double nut or a mating pin to effect a locking of the closure.
Referring to fig. 1 to 6, the gripper assembly 3 further includes an adjusting cylinder 32 and a sliding block 39 slidingly assembled on the rotating shaft 35, the gripper 33 is fixed on the sliding block 39, a cylinder body of the adjusting cylinder 32 is fixed on the gripper 33, and a telescopic rod of the adjusting cylinder 32 is connected with the crank arm 37; the rotation shaft 35 has an anti-rotation structure that can prevent the slider 39 from rotating.
Based on the setting of tongs 33 and crank arm 37 adjust cylinder 32, tongs 33 and crank arm 37 all assemble on pivot 35, adjust cylinder 32 stretches out, tongs 33 can follow pivot 35 and remove to play the effect of adjusting the interval between two tongs 33, through the regulation of adjust cylinder 32, can be according to the interval of handle 111 on the circuit breaker 11, adjust the interval of tongs 33, guarantee the position correspondence of tongs 33 and handle 111, adjust cylinder 32 also plays the effect to tongs 33 location.
In one embodiment of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment, as shown in fig. 1 to 6, the telescopic rod of the adjusting cylinder 32 is connected to the crank arm 37 through a floating joint. The floating joint connection is adopted, so that the gripper 33 can play a role in vibration reduction and buffering in the process of adjusting displacement.
In one embodiment of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment, as shown in fig. 1 to 6, the anti-rotation structure is an anti-rotation plane disposed on the rotation shaft 35. The inner hole of the sliding block 39 matched with the rotating shaft 35 is matched with the section of the rotating shaft 35 with an anti-rotation plane, the anti-rotation plane replaces the key function, the problem of preventing the sliding block 39 from rotating is solved, synchronous rotation with the rotating shaft 35 is guaranteed, and the anti-rotation plane plays a role in guiding sliding of the sliding block 39. The crank arm 37 is assembled at the outer end of the rotating shaft 35, and the rotation of the crank arm 37 can be prevented by adopting a key connection mode.
In a specific implementation manner of the grabbing and dragging mechanism of the circuit breaker 11 provided in this embodiment, the anti-rotation structure may further be the following structure: the cross section of the rotating shaft 35 is elliptical, square, regular hexagon, etc., and two symmetrical rotation preventing planes can be arranged on the rotating shaft 35 to play a role in preventing rotation after the crank arm 37 is assembled. Of course, both ends of the rotation shaft 35 have a circular structure, and are engaged with the bearing seats 36 to facilitate the rotation of the rotation shaft 35.
Referring to fig. 1 to 6, a specific embodiment of a grabbing and pulling mechanism of a circuit breaker 11 provided in this embodiment is shown, and a crank arm 37 includes a shaft sleeve assembled on a rotating shaft 35, and an outer support arm and an inner support arm radially connected to the shaft sleeve, where the outer support arm and the inner support arm are axially offset, a telescopic rod of a grabbing cylinder 31 is hinged to the outer support arm, and a telescopic rod of an adjusting cylinder 32 is connected to the inner support arm.
The grabbing cylinder 31 and the adjusting cylinder 32 are respectively hinged on different fulcrums, and the different axiality of the hinging point of the grabbing cylinder 31 and the hinging point of the adjusting cylinder 32 is reflected through the dislocation arrangement of the inner support arm and the outer support arm, and then the different axiality of the hinging point of the telescopic rod of the adjusting cylinder 32 and the hinging point of the grabbing cylinder 31 is reflected, so that larger torsion is provided for the expansion and the contraction of the grabbing cylinder 31, and the optimization of energy consumption is realized, or the action of overturning and grabbing the handle 111 by the gripper 33 is realized, and the smaller energy consumption is adopted.
Referring to fig. 1 to 2, fig. 7 and fig. 9, the specific implementation manner of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment is that the grabbing and pulling mechanism of the circuit breaker further includes a switching operation assembly 6, where the switching operation assembly 6 is disposed on the sliding connection plate 4 and is located in the middle of the two groups of gripper assemblies 3; the switching operation assembly 6 comprises a screwing motor 62, a sleeve assembly 61, a push rod 63, a guide rail 64 and a sliding seat 65, wherein the guide rail 64 is fixed on the sliding connection plate 4, the sliding seat 65 is in sliding fit with the guide rail 64, the screwing motor 62 is fixed on the sliding seat 65, the sleeve assembly 61 is assembled on a main shaft of the screwing motor 62, and the push rod 63 is connected on the sliding seat 65.
In one specific embodiment of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment, the switching operation assembly 6 is used for pushing the circuit breaker 11 into the power distribution cabinet and closing the power distribution cabinet door, the push rod 63 pushes the slide seat 65 forward, the slide seat 65 drives the screwing motor 62 and the sleeve assembly 61 to move forward, and the sleeve assembly 61 aligns with the shaking-in and shaking-out operation hole 112 on the circuit breaker 11, so that the switching between the test state and the working state of the circuit breaker 11 is realized.
The switching of the working state of the breaker 11 can be realized by utilizing motor driving, thereby replacing manual operation and reducing the labor intensity of manual operation.
In a specific implementation manner of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment, as shown in fig. 3, the grabbing and pulling mechanism of the circuit breaker further includes positioning assemblies 8, the positioning assemblies 8 are disposed on two sides of the front end of the sliding plate 1, the positioning assemblies 8 include a support 81 disposed on the front end of the sliding plate 1 and a positioning pin 82 fixed on the support 81, and the positioning pin 82 is used for plugging with a positioning hole on the power distribution cabinet.
When the breaker 11 is pulled out, the position of the grip 33 and the position of the handle 111 are opposite to each other, so that the breaker 11 can be pulled out smoothly; the positioning assembly 8 moves forward along with the slide plate 1 until the position of the circuit breaker 11 is just right when the positioning pin 82 is inserted into the positioning hole on the power distribution cabinet. And the positioning pin 82 and the positioning hole are arranged, so that the alignment time and labor which are repeatedly adjusted during manual operation are saved, and the operation is time-saving and labor-saving.
Referring to fig. 1 to 3 and 8, the specific implementation manner of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment is shown, the grabbing and pulling mechanism of the circuit breaker further includes a locking component 5, the locking component 5 is disposed at a middle position of a front end of the sliding plate 1, the locking component 5 includes a guide plate 10, a bending plate 9, a latch hook 53 and a spring 52, the guide plate 10 and the bending plate 9 are connected to the front end of the sliding plate 1, the latch hook 53 is hinged to the bending plate 9 through a pin 54 and passes through a guide hole 101 on the guide plate 10, the spring 52 is connected between the latch hook 53 and an ear seat 51 fixed on the sliding plate 1, and the latch hook 53 is used for locking with a lock hole on a power distribution cabinet.
When the circuit breaker 11 is pulled out, the locking component 5 moves forwards along with the sliding plate 1 and moves to the pulling-out position of the circuit breaker 11, when the circuit breaker 11 is pulled out, the mechanism is subjected to reverse force and has a trend of being far away from the power distribution cabinet, so that the circuit breaker 11 is in a suspended state in the pulling-out process, therefore, when the positioning pin 82 is inserted into the positioning hole, the inclined surface of the locking hook 53 is gradually extruded, the spring 52 at the rear end of the locking hook 53 stretches, the locking hook 53 horizontally rotates to be in an inclined state by taking the pin shaft 54 as a fulcrum on the pulling-out route of the circuit breaker 11 until the inclined surface of the locking hook 53 is not extruded, and then returns to the normal state under the restoring force of the spring 52, so that the mechanism is locked on the lock hole of the power distribution cabinet, and the circuit breaker 11 is still reliably connected in the pulling-out process.
Optionally, the supports 81 of the positioning assembly 8 are fixed at two ends of the bending plate 9, and the vertical plate of the bending plate 9 is also provided with a limiting hole 91 through which the latch hook 53 passes, and the bending plate 9 and the guide plate 10 form two supports for the latch hook 53, so that the latch hook 53 can be ensured to move forward horizontally.
Referring to fig. 1 to 2, fig. 7 and fig. 9, the specific implementation manner of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment is shown, and the grabbing and pulling mechanism of the circuit breaker further includes a switching operation assembly 6 and a locking assembly 5, where the switching operation assembly 6 is disposed on the sliding connection plate 4 and is located in the middle of the two groups of gripper assemblies 3; the switching operation assembly 6 comprises a screwing motor 62, a sleeve assembly 61, a push rod 63, a guide rail 64 and a sliding seat 65, wherein the guide rail 64 is fixed on the sliding connection plate 4, the sliding seat 65 is in sliding fit with the guide rail 64, the screwing motor 62 is fixed on the sliding seat 65, the sleeve assembly 61 is assembled on a main shaft of the screwing motor 62, and the push rod 63 is connected on the sliding seat 65. The locking component 5 is arranged at the middle position of the front end of the sliding plate 1, the locking component 5 comprises a guide plate 10, a bending plate 9, a lock hook 53 and a spring 52, the guide plate 10 and the bending plate 9 are connected to the front end of the sliding plate 1, the lock hook 53 is hinged to the bending plate 9 through a pin shaft 54 and passes through a guide hole 101 on the guide plate 10 backwards, the spring 52 is connected between the lock hook 53 and an ear seat 51 fixed on the sliding plate 1, and the lock hook 53 is used for locking with a lock hole on a power distribution cabinet.
The embodiment of the circuit breaker 11 snatchs and pulls a concrete implementation of mechanism that this embodiment provided, the circuit breaker snatchs and pulls the mechanism and still includes switching operation subassembly 6, locking subassembly 5 and locating component 8, and locating component 8 sets up in the front end both sides of slide 1, and locating component 8 is including setting up in the support 81 of slide 1 front end and being fixed in locating pin 82 on the support 81, and locating pin 82 is used for pegging graft with the locating hole on the switch board.
The positioning component 8 and the locking component 5 jointly form three-dimensional positioning of the sliding plate 1, namely, limitation is achieved in the XYZ directions, the problem of displacement of the sliding plate 1 in the pulling-out process of the circuit breaker 11 is avoided, and the safety in the pulling-out process of the circuit breaker 11 is guaranteed.
In a specific embodiment of the grabbing and pulling mechanism of the circuit breaker 11 provided in this embodiment, as shown in fig. 1 to 2 and 8, the left and right sides of the sliding plate 1 are respectively provided with a supporting seat 2 for supporting the circuit breaker 11. The circuit breaker 11 is pulled out, and as the slide connection plate 4 moves backward, the circuit breaker 11 moves onto the slide plate 1 and moves along the support seats 2 on both sides. Specifically, the supporting seat 2 comprises a section steel 21 and angle steel 22, the section steel 21 is fixed on the sliding plate 1, the angle steel 22 is used as a support of the angle steel 22, the angle steel 22 is used as a track for moving wheels of a chassis of the circuit breaker 11, and reliable guarantee is provided for the support and the position of the circuit breaker 11 after being pulled out.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (7)

1. A circuit breaker snatchs and pulls mechanism, characterized in that includes:
a slide plate (1);
a linear drive assembly (7) mounted on the slide plate (1);
a sliding connection plate (4) connected to the linear driving assembly (7); and
the two groups of gripper assemblies (3) are symmetrically arranged on the sliding connecting plate (4); the linear driving assembly (7) drives the sliding connection plate (4) to move forwards, so that a handle (111) on the circuit breaker is grabbed by a handle (33) of the handle assembly (3), and the circuit breaker is pulled out of the power distribution cabinet after the handle assembly moves backwards;
the gripper assembly (3) comprises a gripper (33), a rotating shaft (35) and a grabbing cylinder (31), wherein the gripper (33) is assembled on the rotating shaft (35), two ends of the rotating shaft (35) are assembled on the sliding connecting plate (4) through bearing blocks (36), a cylinder body of the grabbing cylinder (31) is hinged on the sliding connecting plate (4), and a telescopic rod of the grabbing cylinder (31) is hinged on a crank arm (37) assembled on the rotating shaft (35); the telescopic rod of the grabbing cylinder (31) extends forwards to drive the rotating shaft (35) to drive the gripper (33) to overturn downwards to grab the handle (111);
the gripper assembly (3) further comprises an adjusting cylinder (32) and a sliding block (39) which is assembled on the rotating shaft (35) in a sliding mode, the gripper (33) is fixed on the sliding block (39), a cylinder body of the adjusting cylinder (32) is fixed on the gripper (33), and a telescopic rod of the adjusting cylinder (32) is connected with the crank arm (37); the rotating shaft (35) is provided with an anti-rotation structure capable of preventing the sliding block (39) from rotating;
the crank arm (37) comprises a shaft sleeve assembled on the rotating shaft (35), and an outer support arm and an inner support arm which are radially connected to the shaft sleeve, wherein the outer support arm and the inner support arm are axially arranged in a staggered mode, a telescopic rod of the grabbing cylinder (31) is hinged to the outer support arm, and a telescopic rod of the adjusting cylinder (32) is connected to the inner support arm.
2. The circuit breaker grabbing and pulling mechanism according to claim 1, characterized in that the telescopic rod of the adjusting cylinder (32) is connected with the crank arm (37) through a floating joint.
3. The circuit breaker grabbing and pulling mechanism of claim 1, wherein the anti-rotation structure is an anti-rotation plane provided on the rotation shaft (35).
4. The circuit breaker grabbing and pulling mechanism according to claim 1, further comprising a switching operation assembly (6), wherein the switching operation assembly (6) is arranged on the sliding connection plate (4) and is positioned in the middle of the two groups of the gripper assemblies (3); the switching operation assembly (6) comprises a screwing motor (62), a sleeve assembly (61), a push rod (63), a guide rail (64) and a sliding seat (65), wherein the guide rail (64) is fixed on the sliding connection plate (4), the sliding seat (65) is in sliding fit with the guide rail (64), the screwing motor (62) is fixed on the sliding seat (65), the sleeve assembly (61) is assembled on a main shaft of the screwing motor (62), and the push rod (63) is connected on the sliding seat (65).
5. The circuit breaker grabbing and pulling mechanism according to claim 1, further comprising positioning components (8), wherein the positioning components (8) are arranged on two sides of the front end of the sliding plate (1), the positioning components (8) comprise a support (81) arranged on the front end of the sliding plate (1) and positioning pins (82) fixed on the support (81), and the positioning pins (82) are used for being inserted into positioning holes in a power distribution cabinet.
6. The circuit breaker grabbing and pulling mechanism according to claim 1, further comprising a locking assembly (5), wherein the locking assembly (5) is arranged at the middle position of the front end of the sliding plate (1), the locking assembly (5) comprises a guide plate (10), a bending plate (9), a locking hook (53) and a spring (52), the guide plate (10) and the bending plate (9) are connected to the front end of the sliding plate (1), the locking hook (53) is hinged to the bending plate (9) through a pin shaft (54) and penetrates backwards through a guide hole (101) in the guide plate (10), and the spring (52) is connected between the locking hook (53) and an ear seat (51) fixed on the sliding plate (1), and the locking hook (53) is used for locking with a lock hole on a power distribution cabinet.
7. Circuit breaker grabbing and pulling mechanism according to claim 1, characterized in that the left and right sides of the slide plate (1) are provided with a support seat (2) for supporting the circuit breaker, respectively.
CN202210590402.6A 2022-05-26 2022-05-26 Grabbing and dragging mechanism of circuit breaker Active CN114883962B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114825142B (en) * 2022-05-26 2024-03-12 国网河北省电力有限公司石家庄供电分公司 Handcart type breaker replacement method
CN114789461B (en) * 2022-05-26 2024-08-02 国网河北省电力有限公司石家庄供电分公司 Circuit breaker replacement operation robot

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CN212169740U (en) * 2020-04-17 2020-12-18 河南省矿山起重机有限公司 Turnover mechanism
CN214479010U (en) * 2020-12-21 2021-10-22 上海良信电器股份有限公司 Mobile device for fixed low-voltage circuit breaker, power distribution cabinet and transformer substation

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CN104577841A (en) * 2013-10-10 2015-04-29 施耐德电器工业公司 Novel circuit breaker cranking-in and cranking-out driving mechanism
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