CN204214639U - Breaker mechanic property proving installation - Google Patents

Abstract

The utility model belongs to the technical field of electrical equipment and relates to a device for testing the mechanical characteristics of a circuit breaker. It includes a circuit breaker and a chassis car. The circuit breaker includes a solid-sealed pole and a vertical insulating rod arranged under the solid-sealed pole. It also includes an L-shaped installation bend, and the installation bend is horizontal. A mounting hole is arranged on the surface, and it is fixed on the bottom of the chassis by screws; a vertically placed linear displacement sensor is installed on the vertical surface of the installation bent plate; the top of the moving rod of the linear displacement sensor passes through An adapter is connected to the insulating tie rod. After adopting the above structure, the chassis car does not need to be dismantled when testing the mechanical characteristics of the circuit breaker on site, and the device has a simple structure and is easy to install.

Description

Circuit breaker mechanical characteristics test device

technical field

The utility model belongs to the technical field of electrical equipment and relates to a device for testing the mechanical characteristics of a circuit breaker.

Background technique

At present, 7.2-24kV medium-voltage switchgear generally adopts handcart circuit breakers. The mechanical characteristics of the circuit breaker are an important technical parameter to measure the rated current and short-circuit current of the circuit breaker. Repeated tests are performed on the mechanical characteristics of the circuit breaker.

The complete handcart circuit breaker is installed with a chassis car with a screw drive mechanism. At the user's site, when testing the mechanical characteristics, the chassis at the bottom of the circuit breaker needs to be removed. During the process, the circuit breaker weighing more than 100 kilograms needs to be lifted. After the test, the circuit breaker and the chassis must be reinstalled. For the crude working environment on site, this work is very inconvenient, and there are certain safety hazards.

Therefore, if a tool can be designed to test the mechanical characteristics of the circuit breaker conveniently and reliably without dismantling the chassis, it will greatly facilitate users and solve on-site problems.

Contents of the invention

The technical problem to be solved by the utility model is to provide a circuit breaker mechanical characteristic testing device which does not need to dismantle the chassis when testing the mechanical characteristic of the circuit breaker on site.

The mechanical characteristic testing device of the circuit breaker of the present invention comprises a circuit breaker and a chassis car, and the circuit breaker includes a circuit breaker bottom plate, a solid-sealed pole and a moving contact arranged under the solid-sealed pole, which can follow the line of the circuit breaker. A movable, vertical insulating pull rod, the chassis car is provided with a plurality of installation holes, and is installed on the bottom of the circuit breaker base plate through a plurality of screws;

It also includes an L-shaped installation bent plate, a mounting hole is arranged on the horizontal surface of the installation bent plate, and is fixed on the bottom of the chassis vehicle by screws; a vertical A linear displacement sensor placed vertically; the top of the moving rod of the linear displacement sensor is connected with the insulating pull rod through an adapter.

The installation hole on the installation bending plate is a long waist hole; the position of the installation hole on the installation bending plate corresponds to the position of a mounting hole on the chassis car, which is close to the solid-sealed pole; the screw passes through the installation hole at the same time The mounting holes on the bent plate and the chassis car, and cooperate with the nuts embedded in the bottom of the circuit breaker to fix the installation bent plate and the chassis car to the circuit breaker bottom plate.

The adapter is a disc structure, and the center of the adapter is threadedly connected with the insulating pull rod; the adapter is uniformly provided with a plurality of threaded holes along the circumferential direction; the moving rod of the linear displacement sensor is installed on one of the adapters in the threaded hole.

The utility model has the advantages of: 1. After adopting the above structure, it is not necessary to dismantle the chassis when testing the mechanical characteristics of the circuit breaker on site, and the device has a simple structure and is easy to install. 2. The installation holes on the installation bending plate are long-waisted holes and the adapter is evenly provided with a plurality of threaded holes along the circumferential direction; this structure is convenient for adjustment during installation and increases the scope of application.

Description of drawings

Fig. 1 is a schematic diagram of the installation position of the utility model on a circuit breaker;

Fig. 2 is the three-dimensional structural representation of the utility model;

Fig. 3 is a schematic structural view of the utility model.

Detailed ways

  Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described

As shown in the figure: a circuit breaker mechanical characteristic testing device, including a circuit breaker 1, a circuit breaker bottom plate 2, and a chassis car 3, the chassis car 3 is provided with a plurality of mounting holes, and is installed on the circuit breaker by a plurality of screws The bottom of the bottom plate 2 of the circuit breaker; the circuit breaker 1 includes a solidified pole 4 and a vertical insulating rod 5 arranged below the solidified pole 4,

It also includes an L-shaped installation bent plate 6, an installation hole is arranged on the horizontal surface of the installation bent plate 6, and is fixed on the bottom of the chassis car 3 by screws; the vertical surface of the installation bent plate 6 is A vertically placed linear displacement sensor 7 is installed; the top of the screw rod of the linear displacement sensor 7 is connected with the insulating rod 5 through an adapter 8 .

The installation hole on the installation bent plate 6 is a long-waisted hole; the position of the installation hole of the installation bending plate 6 is corresponding to the position of an installation hole near the solid-sealed pole 4 on the chassis vehicle 3; , first remove the corresponding screws on the chassis 3, and then pass the screws through the mounting holes on the installation bent plate 6 and the chassis 3 at the same time, and cooperate with the nut 9 embedded in the bottom of the circuit breaker to install The bent plate 6 and the chassis car 3 are fixed to the circuit breaker base plate 2 .

The adapter 8 is a disc structure, and the center of the adapter 8 is threadedly connected with the insulating pull rod 5; the adapter 8 is provided with a plurality of threaded holes along the circumferential direction; the screw rod of the linear displacement sensor 7 is installed in the rotating In a threaded hole of the connector 8.

Claims (3)

1. A device for testing mechanical characteristics of a circuit breaker, comprising a circuit breaker (1) and a chassis (3), the circuit breaker (1) comprising a circuit breaker base plate (2), a solid-sealed pole (4) and a fixed The vertical insulating rod (5) under the sealing pole (4) that can move linearly with the moving contact of the circuit breaker. The chassis (3) is provided with multiple mounting holes, and through multiple screws Installed at the bottom of the circuit breaker base plate (2); It is characterized in that it also includes an L-shaped installation bent plate (6), a mounting hole is provided on the horizontal surface of the installation bent plate (6), and is fixed on the bottom of the chassis vehicle (3) through a connecting piece; A vertically placed linear displacement sensor (7) is installed on the vertical surface of the installation bent plate (6); the top of the moving rod of the linear displacement sensor (7) is connected with an insulating rod through an adapter (8) (5) connected. 2. The circuit breaker mechanical characteristic testing device according to claim 1, characterized in that: the installation hole on the installation bending plate (6) is a long waist hole; the installation hole of the installation bending plate (6) is The position corresponds to the position of a mounting hole on the chassis (3) that is close to the solid-sealed pole (4); the screw passes through the mounting hole on the installation bend (6) and the chassis (3) at the same time, and is connected with The nuts (9) embedded in the bottom of the circuit breaker cooperate to fix the installation bent plate (6) and the chassis (3) to the circuit breaker bottom plate (2). 3. The circuit breaker mechanical characteristic testing device according to claim 1, characterized in that: the adapter (8) is a disc structure, and the center of the adapter (8) is threadedly connected to the insulating rod (5); The adapter (8) is evenly provided with a plurality of threaded holes along the circumferential direction; the moving rod of the linear displacement sensor (7) is installed in one threaded hole of the adapter (8).