CN211293164U

CN211293164U - Thermal testing device for circuit breaker

Info

Publication number: CN211293164U
Application number: CN201922230124.XU
Authority: CN
Inventors: 杨赣斌
Original assignee: Changzhou Senhong Jianye Electric Co ltd
Current assignee: Changzhou Senhong Jianye Electric Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-08-18
Anticipated expiration: 2029-12-13

Abstract

The utility model belongs to the technical field of circuit breaker test equipment, especially, be a hot testing arrangement for circuit breaker, it is high to circuit breaker centre gripping subassembly fault rate among the hot testing arrangement of current circuit breaker, inconvenient stable circuit breaker presss from both sides tight location and the problem of loosening the action of realizing, the following scheme is proposed at present, it includes hot testing arrangement body, hot testing arrangement includes circuit breaker clamping component, circuit breaker clamping component includes frame and two splint, the rectangular hole has been seted up at the top central part of frame, the welding has same guide bar on the both sides inner wall of rectangular hole, and the equal sliding sleeve of two splint is established in the outside of guide bar, the mount pad has all been welded to the bottom both sides of frame, the bottom side of mount pad is rotated and is connected with two sprockets. The utility model has the advantages of reasonable design, step motor lasts rotatory alright realize the circuit breaker in turn the location centre gripping with loosen the action, theory of operation is simple and easy, be difficult for breaking down long service life.

Description

Thermal testing device for circuit breaker

Technical Field

The utility model relates to a circuit breaker test equipment technical field especially relates to a hot testing arrangement for circuit breaker.

Background

With the rapid development of the technology of the electrical equipment, the circuit breaker commonly used in the electrical equipment is also rapidly updated. Before the newly developed circuit breaker is produced in a large scale, research and development experiments are generally required to be carried out on the circuit breaker to test various performance parameters of the circuit breaker. For example, chinese patent application No. 201210404576.5 discloses a thermal testing device for a circuit breaker, including: the circuit breaker loading assembly, the circuit breaker clamping assembly, the power supply assembly and the control system are arranged on the circuit breaker loading assembly; the circuit breaker loading assembly is used for conveying the circuit breaker to a working station; the circuit breaker clamping assembly is used for positioning and clamping a circuit breaker positioned at a working station; the power supply assembly is electrically connected with the circuit breaker to supply currents with various values to the circuit breaker; the circuit breaker loading assembly, the circuit breaker clamping assembly, the power supply assembly and the circuit breaker are respectively connected with the control system; the control system controls the action of the breaker loading assembly, the breaker clamping assembly and the power supply assembly, and obtains or sets the performance parameter value of the breaker. The design can provide accurate data for the research and development test of the circuit breaker products, and parameter setting can be carried out on the production line of the circuit breaker through the data when the circuit breaker is produced in a large scale.

But above-mentioned design still has the shortcoming, and circuit breaker centre gripping subassembly design is complicated among the circuit breaker hot testing arrangement of above-mentioned design, and the fault rate is high, and inconvenient stable realization circuit breaker presss from both sides tight location and unclamps the action, therefore we have proposed a hot testing arrangement for circuit breaker and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcomings of high, inconvenient stable realization circuit breaker clamp of circuit breaker centre gripping subassembly fault rate among the current circuit breaker hot testing arrangement of circuit breaker and tight location and the action of loosening, and the hot testing arrangement for circuit breaker who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a thermal testing device for a circuit breaker comprises a thermal testing device body, the thermal testing device comprises a circuit breaker clamping assembly, the circuit breaker clamping assembly comprises a frame and two clamping plates, a rectangular hole is formed in the center of the top of the frame, the inner walls of two sides of the rectangular hole are welded with the same guide rod, and the two clamping plates are sleeved outside the guide rod in a sliding manner, mounting seats are welded on the two sides of the bottom of the rack, two chain wheels are rotatably connected on the bottom sides of the mounting seats, and the two chain wheels are provided with the same chain in a transmission way, the front sides of the chain wheels are fixedly connected with eccentric wheels, and the two clamping plates are both positioned between the two eccentric wheels, one sides of the two clamping plates far away from each other are both fixedly connected with one ends of two diagonal draw bars, and the other ends of the two diagonal draw bars positioned on the same side are fixedly connected with the same sliding plate, and one sides of the two sliding plates, which are far away from each other, are respectively in rolling connection with the outer sides of the two eccentric wheels.

Preferably, a stepping motor is fixedly mounted at the bottom of the mounting seat on the right side in the two mounting seats through a bolt, a chain wheel on the right side in the two chain wheels is fixedly connected to an output shaft of the stepping motor, and the stepping motor is used for driving the chain wheel to rotate by a specific angle.

Preferably, two supports are welded at the bottom of the left mounting seat in the two mounting seats, a rotating shaft is fixedly sleeved at the rear side of the left chain wheel in the two chain wheels, inner rings of two bearings are fixedly sleeved at the outer sides of the rotating shaft, outer rings of the bearings are welded with the bottom ends of the supports, and one chain wheel is conveniently rotated and arranged on the mounting seats.

Preferably, the bottom of one side of the clamping plate is provided with a guide hole matched with the guide rod, and the guide rod is movably connected with the corresponding guide hole, so that the clamping plate can be sleeved on the outer side of the guide rod.

Preferably, the bottom of one side that two splint kept away from each other is all fixed to be pasted and is had powerful magnet, and one side that two powerful magnets kept away from each other is fixed with one side that two slides are close to each other respectively and bonds for the slide is laminated with the eccentric wheel all the time.

Preferably, the chain is located at the rear side of the clamping plate, the sliding plate is located at the front side of the chain wheel, and the eccentric wheel is of an oval structure, so that the eccentric wheel can push the sliding plate to move alternately when continuously rotating.

The utility model discloses a hot testing arrangement for circuit breaker, when the circuit breaker is carried to between two splint, start step motor, make step motor's output shaft drive sprocket clockwise half a week, two sprocket synchronous rotations and drive the eccentric wheel rotation, when the eccentric wheel rotates gradually to half a week, the long axial plane of eccentric wheel extrudes the slide gradually, alright promote two slides and be close to each other for the slide drives the splint and slides in the outside of guide bar, two splint are close to each other alright press from both sides tight circuit breaker, realize the location clamping work of circuit breaker;

the thermal testing device for the circuit breaker in the utility model continuously rotates the driving chain wheel for half a circle when the stepping motor continues to rotate, the long shaft surface of the eccentric wheel gradually rotates to be separated from the sliding plate, and the clamp plate can be separated from the circuit breaker under the magnetic action of the powerful magnet, so that the circuit breaker can be loosened;

the utility model has the advantages of reasonable design, step motor lasts rotatory alright realize the circuit breaker in turn the location centre gripping with loosen the action, theory of operation is simple and easy, be difficult for breaking down long service life.

Drawings

Fig. 1 is a schematic structural diagram of a thermal testing apparatus for a circuit breaker according to the present invention;

fig. 2 is a schematic structural diagram of a portion a of a thermal testing apparatus for a circuit breaker according to the present invention;

fig. 3 is a right side view of the mounting seat, the sprocket, the chain and the stepping motor of the thermal testing device for the circuit breaker according to the present invention;

fig. 4 is a left side view of the utility model provides a mount pad, sprocket, chain, support, bearing and pivot for the thermal test device of circuit breaker.

In the figure: 1. a frame; 2. a rectangular hole; 3. a splint; 4. a mounting seat; 5. a sprocket; 6. a chain; 7. an eccentric wheel; 8. a diagonal member; 9. a slide plate; 10. a guide bar; 11. a strong magnet; 12. a stepping motor; 13. a support; 14. a bearing; 15. and (4) a guide hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a thermal testing device for a circuit breaker, comprising a thermal testing device body, the thermal testing device comprises a circuit breaker clamping assembly, the circuit breaker clamping assembly comprises a frame 1 and two clamp plates 3, a rectangular hole 2 is arranged at the central position of the top of the frame 1, the inner walls of the two sides of the rectangular hole 2 are welded with the same guide bar 10, the two clamp plates 3 are respectively sleeved on the outer side of the guide bar 10 in a sliding manner, mounting seats 4 are respectively welded on the two sides of the bottom of the frame 1, two chain wheels 5 are rotatably connected with the bottom side of the mounting seats 4, the two chain wheels 5 are respectively provided with the same chain 6 in a transmission manner, the front side of each chain wheel 5 is fixedly connected with an eccentric wheel 7, the two clamp plates 3 are respectively positioned between the two eccentric wheels 7, one side of the two clamp plates 3 away from each other is respectively fixedly connected with one end of two diagonal draw bars 8, the two sliding plates 9 are respectively connected with the outer sides of the two eccentric wheels 7 in a rolling way at the sides far away from each other.

The utility model discloses in, there is step motor 12 in the bottom of the mount pad 4 that lies in the right side in two mount pads 4 through bolt fixed mounting, and 5 fixed connection of sprocket 5 that lie in the right side in two sprockets 5 are on step motor 12's output shaft, and step motor 12 is used for the rotatory specific angle of driving sprocket 5.

The utility model discloses in, the bottom welding that lies in left mount pad 4 in two mount pads 4 has two supports 13, and the fixed cover in the rear side that lies in left sprocket 5 in two sprockets 5 is equipped with the pivot, and the fixed cover in the outside of pivot is equipped with the inner circle of two bearings 14, and bearing 14's outer lane welds with the bottom of support 13 mutually, conveniently rotates one of them sprocket 5 and sets up on mount pad 4.

The utility model discloses in, one side bottom of splint 3 set up with the guiding hole 15 of guide bar 10 looks adaptation,

guide bar

10 and 15 swing joint of corresponding guiding hole for splint 3 can overlap and establish the outside at guide bar 10.

The utility model discloses in, the equal fixed paste in one side bottom that two splint 3 kept away from each other has powerful magnet 11, and one side that two powerful magnet 11 kept away from each other is fixed with one side that two slide 9 are close to each other respectively and bonds for slide 9 laminates with eccentric wheel 7 all the time.

The utility model discloses in, chain 6 is located the rear side of splint 3, and slide 9 is located the front side of sprocket 5, and eccentric wheel 7 is oval structure for can alternately promote slide 9 and remove when eccentric wheel 7 lasts the rotation.

In the utility model, when in use, the utility model utilizes the commercial power to supply power to the stepping motor 12, and a control switch is arranged on the power supply of the stepping motor 12, when the breaker is conveyed between the two clamp plates 3, the stepping motor 12 is started, so that the output shaft of the stepping motor 12 drives the sprocket 5 to rotate clockwise for half a circle, because the two sprockets 5 are in transmission connection through the chain 6, the two sprockets 5 rotate synchronously, the sprocket 5 drives the eccentric wheel 7 to rotate, when the eccentric wheel 7 rotates gradually to half a circle, the long shaft surface of the eccentric wheel 7 extrudes the sliding plate 9 gradually, so that the two sliding plates 9 can be pushed to approach each other, so that the sliding plate 9 drives the clamp plate 3 to slide outside the guide rod 10, the two clamp plates 3 approach each other to clamp the breaker, and the positioning and; when the stepping motor 12 continues to rotate, the driving chain wheel 5 continues to rotate for half a circle, at the moment, the long shaft surface of the eccentric wheel 7 gradually rotates to be separated from the sliding plate 9, and under the magnetic action of the powerful magnet 11, the clamping plate 3 can be separated from the breaker, so that the breaker can be loosened.

Claims

1. A thermal testing device for a circuit breaker comprises a thermal testing device body, wherein the thermal testing device comprises a circuit breaker clamping assembly, the circuit breaker clamping assembly comprises a machine frame (1) and two clamping plates (3), and is characterized in that a rectangular hole (2) is formed in the center of the top of the machine frame (1), the inner walls of two sides of the rectangular hole (2) are welded with the same guide rod (10), the two clamping plates (3) are sleeved on the outer side of the guide rod (10) in a sliding manner, mounting seats (4) are welded on two sides of the bottom of the machine frame (1), two chain wheels (5) are rotatably connected to the bottom sides of the mounting seats (4), the two chain wheels (5) are provided with the same chain (6) in a transmission manner, eccentric wheels (7) are fixedly connected to the front sides of the chain wheels (5), and the two clamping plates (3) are located between the two eccentric wheels (7), the two clamping plates (3) are fixedly connected with one ends of two diagonal draw bars (8) at one side far away from each other, the other ends of the two diagonal draw bars (8) at the same side are fixedly connected with the same sliding plate (9), and one side of the two sliding plates (9) far away from each other is respectively connected with the outer sides of the two eccentric wheels (7) in a rolling manner.

2. The thermal testing device for the circuit breaker according to claim 1, wherein the stepping motor (12) is fixedly mounted at the bottom of the right mounting seat (4) of the two mounting seats (4) through a bolt, and the right sprocket (5) of the two sprockets (5) is fixedly connected to the output shaft of the stepping motor (12).

3. The thermal testing device for the circuit breaker according to claim 1, wherein two brackets (13) are welded to the bottom of the left mounting seat (4) of the two mounting seats (4), a rotating shaft is fixedly sleeved on the rear side of the left chain wheel (5) of the two chain wheels (5), inner rings of two bearings (14) are fixedly sleeved on the outer side of the rotating shaft, and the outer rings of the bearings (14) are welded to the bottom ends of the brackets (13).

4. The thermal testing device for the circuit breaker according to claim 1, wherein a guide hole (15) matched with the guide rod (10) is formed at the bottom of one side of the clamping plate (3), and the guide rod (10) is movably connected with the corresponding guide hole (15).

5. The thermal testing device for the circuit breaker according to claim 1, wherein the bottom of the side of the two clamping plates (3) away from each other is fixedly adhered with a strong magnet (11), and the side of the two strong magnets (11) away from each other is fixedly adhered with the side of the two sliding plates (9) close to each other.

6. A thermal testing device for circuit breakers according to claim 1, characterized in that said chain (6) is located on the rear side of the clamping plate (3), said sliding plate (9) is located on the front side of the chain wheel (5), said eccentric wheel (7) is of ovoid configuration.