CN211125523U

CN211125523U - Auxiliary interlocking bracket of main circuit breaker

Info

Publication number: CN211125523U
Application number: CN201922470729.6U
Authority: CN
Inventors: 曹梦威; 马杰; 晏鸿斌; 肖世德; 刘嘉伟
Original assignee: China Railway No 3 Engineering Group Co Ltd; Transportation Engineering Branch of China Railway No 3 Engineering Group Co Ltd
Current assignee: China Railway No 3 Engineering Group Co Ltd; Transportation Engineering Branch of China Railway No 3 Engineering Group Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-28
Anticipated expiration: 2029-12-31

Abstract

The utility model belongs to the field of electric locomotive circuit auxiliary equipment; the utility model provides an auxiliary interlocking support of a main circuit breaker, which has the thickness of 10mm and is integrally of an integrated structure, and comprises a U-shaped support and two mounting frames respectively extending from two ends, through-hole that sets up on the mounting bracket will the utility model discloses fixed mounting effectively improves the impact that bears on main circuit breaker, has solved the cracked problem of interlocking push pedal fracture and construction bolt, reduces the maintenance duration of locomotive, improves the locomotive rate of utilization, reduces vehicle cost of transportation.

Description

Auxiliary interlocking bracket of main circuit breaker

Technical Field

The utility model relates to an electric locomotive circuit auxiliary assembly field, more specifically the utility model relates to an auxiliary interlocking support of main circuit breaker.

Background

As an important part of the electric locomotive, the main circuit breaker is connected between a pantograph and a main transformer, is a main switch and a main protection electric appliance of the electric locomotive, when the main circuit breaker is closed, the locomotive can be put into operation only by obtaining power supply from a contact network wire through the pantograph, and when the main circuit and an auxiliary circuit have electrical faults, the main circuit breaker can be disconnected through a control circuit, so that the fault range is reduced, and the loss is reduced. But main circuit breaker is in the use, unable closed phenomenon often appears, because main circuit breaker's supplementary interlocking is from normally opening to becoming the normal close, the supplementary interlocking support fracture for main circuit breaker of the reason that leads to the trouble to produce, current interlocking support is split type structure, the mount pad passes through bolted connection with the interlocking push pedal, the closed wind pressure that needs of main circuit breaker is 500pka, once every closure, all can have huge impact, cause the interlocking push pedal fracture, the cracked phenomenon of mounting screw often appears, increase locomotive maintenance duration.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to provide a main circuit breaker's supplementary interlocking support, this utility model.

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

an auxiliary interlocking support of a main circuit breaker is of an integrated structure, is 10mm thick and comprises a U-shaped support, support through holes are formed in four corners of a bottom plate of the U-shaped support, two mounting frames extend out of two ends of the bottom plate of the U-shaped support respectively, and the distance between the two mounting frames at the same end is the same as that between hook-shell spring supports of the main circuit breaker; the tail end of the mounting rack protrudes towards the direction inside the U-shaped support, support mounting holes are formed in the protruding structure of the mounting rack, and the two support mounting holes of the two mounting racks at the same end are located at the same axial line; the baffle is arranged on the outer side of the protruding structure of the mounting frame, the outer side of the baffle and the outer side of the mounting frame are located on the same plane, a support mounting pin through hole is formed in one end, close to the outer side of the U-shaped support, of the baffle, and the hole forming direction of the support mounting pin through hole is parallel to the hole forming direction of the support mounting hole.

Furthermore, the center of the U-shaped bracket is provided with an air hole.

Further, the thickness of the baffle plate is 2 mm.

In conclusion, the invention has the following beneficial effects:

the utility model discloses whole formula structure as an organic whole effectively improves the impact that bears, has solved the cracked problem of interlocking push pedal fracture and mounting bolt that the split type structure of mount pad and two interlocking push pedals can produce among the current structure, has reduced the maintenance duration of locomotive, improves the locomotive rate of utilization, reduces vehicle cost of transportation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-U-shaped support, 2-mounting frame, 3-support mounting hole, 4-support through hole, 5-air hole, 6-support mounting pin through hole and 21-baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, an auxiliary interlocking bracket of a main circuit breaker, the auxiliary interlocking bracket is an integrated structure, is integrally installed on the main circuit breaker, solves the problems of interlocking push pedal fracture and mounting bolt fracture which can be generated by a split structure of a mounting seat and two interlocking push pedals, has a thickness of 10mm, comprises a U-shaped bracket 1, and is characterized in that bracket through holes 4 are arranged at four corners of a bottom plate of the U-shaped bracket 1 for lightening the weight of the utility model and increasing the air permeability of the utility model, an air hole 5 is arranged at the central position of the U-shaped bracket 1 for increasing the air permeability of the utility model, two mounting brackets 2 are respectively extended from two ends of the bottom plate of the U-shaped bracket 1, and the distance between the two mounting brackets 2 at the same end of the bottom plate of the U-shaped bracket 1 is the; the tail end of the mounting frame 2 protrudes towards the direction inside the U-shaped support 1, the protruding structure of the mounting frame 2 is provided with support mounting holes 3, and the two support mounting holes 3 at the same end of the bottom plate of the U-shaped support 1 are positioned at the same axial line position; the protruding structure outside of mounting bracket 2 sets up baffle 21, and baffle 21 thickness 2mm, the baffle 21 outside is located the coplanar with the outside of mounting bracket 2, and baffle 21 is located the outside of main circuit breaker's hook shell spring support when using to the one end that is close to the 1 outside of U type support on baffle 21 sets up support mounting round pin through-hole 6, and the trompil direction of support mounting round pin through-hole 6 is parallel with the trompil direction of support mounting hole 3.

The installation process of the device is as follows: support mounting hole 3 does the utility model discloses a fixed position utilizes the round pin will the utility model discloses fix on main circuit breaker's support frame, support mounting round pin through-hole 6 with collude that the shell spring bracket passes through the round pin fixed.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An auxiliary interlocking bracket of a main circuit breaker is characterized in that: the auxiliary interlocking support is of an integrated structure, the thickness of the auxiliary interlocking support is 10mm, the auxiliary interlocking support comprises a U-shaped support (1), support through holes (4) are formed in four corners of a bottom plate of the U-shaped support (1), two mounting frames (2) extend out of two ends of the bottom plate of the U-shaped support (1) respectively, and the distance between the two mounting frames (2) at the same end is the same as that between the hook-shell spring supports of the main circuit breaker; the tail end of the mounting rack (2) protrudes towards the direction inside the U-shaped support (1), support mounting holes (3) are formed in the protruding structure of the mounting rack (2), and the two support mounting holes (3) of the two mounting racks (2) at the same end are located at the same axial line position; the outer side of the protruding structure of the mounting frame (2) is provided with a baffle (21), the outer side of the baffle (21) and the outer side of the mounting frame (2) are located on the same plane, one end, close to the outer side of the U-shaped support (1), of the baffle (21) is provided with a support mounting pin through hole (6), and the hole opening direction of the support mounting pin through hole (6) is parallel to the hole opening direction of the support mounting hole (3).

2. An auxiliary interlock bracket for a main circuit breaker according to claim 1, wherein: and the central position of the U-shaped bracket (1) is provided with an air hole (5).

3. An auxiliary interlock bracket for a main circuit breaker according to claim 1, wherein: the thickness of the baffle (21) is 2 mm.