CN-224217977-U - Mounting structure of externally-hung electric mechanism

CN224217977UCN 224217977 UCN224217977 UCN 224217977UCN-224217977-U

Abstract

The utility model discloses a mounting structure of an externally-hung electric mechanism, which comprises a box body detachably mounted on the outer surface of a door plate of a breaker chamber of a switch cabinet, a box door hinged on a door opening of the box body and an externally-hung electric chassis mechanism mounted in the box body, wherein the externally-hung electric chassis mechanism consists of a driving motor, a tripping clutch, a manual operation shaft and a driving shaft sleeve, the tripping clutch is connected with a power output shaft of the driving motor, the tripping clutch is provided with the manual operation shaft and the driving shaft sleeve, the linkage end of the manual operation shaft penetrates out of a breaker operation hole on the box door for inserting an operation handle to perform manual shaking-in and shaking-out operation, and the driving shaft sleeve extends out of a box body bottom plate for connecting a chassis operation screw rod. When in operation and maintenance, the external-hanging type electric chassis truck mechanism can be quickly replaced by disassembling the external-hanging type electric chassis truck mechanism, the door plate of the breaker chamber of the switch cabinet does not need to be opened, uninterrupted maintenance is realized, and the operation and maintenance working efficiency is improved.

Inventors

CAO JINBIN
LIN JINGFU
ZHENG DEZHI
CHEN SHULONG
LI YUANHAO
FENG QIANXING
WANG XINGWEN

Assignees

广州白云电器设备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250519

Claims (7)

1. The mounting structure of the externally hung electric mechanism is characterized by comprising a box body detachably mounted on the outer surface of a door plate of a breaker chamber of a switch cabinet, a box door hinged to a door opening of the box body and an externally hung electric chassis mechanism mounted in the box body, wherein the externally hung electric chassis mechanism consists of a driving motor, a tripping clutch, a manual operation shaft and a driving shaft sleeve, the tripping clutch is connected with a power output shaft of the driving motor, the tripping clutch is provided with the manual operation shaft and the driving shaft sleeve, a linkage end of the manual operation shaft penetrates out of a breaker operation hole on the box door for being inserted into an operation handle to perform manual shaking-in and shaking-out operation, and the driving shaft sleeve extends out of a box body bottom plate for being connected with a chassis operation screw rod.
2. The mounting structure of an externally hung electric mechanism according to claim 1, wherein a baffle mechanism is arranged on an outer plate surface of the box door and positioned at a breaker operation hole, the baffle mechanism consists of a base fixed on the edge of the breaker operation hole and a baffle capable of opening and closing, the base is provided with a through hole corresponding to the breaker operation hole, one end of the baffle is hinged with the base, the other end of the baffle can be buckled with the base and is provided with a hanging hole for installing a program padlock, a travel switch is arranged in the box body and is electrically connected in an electric operation loop of a driving motor, and the travel switch is opened or closed in linkage with the baffle and the box door, and can be closed only when the box door and the baffle are simultaneously closed.
3. The mounting structure of an externally hung electric mechanism according to claim 2, wherein a protective flange is arranged on the edge of the door of the case.
4. The mounting structure of an externally hung electric mechanism according to claim 3, wherein a rotary door lock is arranged on the door, a lock tongue of the rotary door lock can rotate to be clamped at the inner side of a door opening of the box body to lock the box body and the door closed, and a hanging lock hole capable of mounting a program padlock is arranged on the rotary door lock.
5. The mounting structure of an externally hung electric mechanism according to claim 4, wherein the case is rectangular, a thick steel plate is welded on an inner plate surface of the bottom plate of the case, and the externally hung electric chassis mechanism is mounted on the fixing bracket and detachably mounted on the bottom plate through a connecting plate of the fixing bracket.
6. The mounting structure of an externally hung electric mechanism according to claim 5, wherein the switchgear breaker chamber door plate is a switchgear breaker chamber front middle door, a stud is welded in the middle of an inner plate surface of the bottom plate, a transverse long waist hole is formed at a corner, a bolt penetrates through the transverse long waist hole and the switchgear breaker chamber front middle door to carry out transverse position adjustment and then positioning, so that the box body is mounted on the switchgear breaker chamber front middle door, a vertical long waist hole is formed at a corner of the connecting plate, and the vertical long waist hole is used for the stud on the bottom plate to penetrate through and be positioned after the vertical position adjustment, so that the externally hung electric chassis mechanism is fixed on the bottom plate of the box body.
7. The mounting structure of an externally hung electric mechanism according to claim 6, wherein the bottom plate of the box body is provided with an opening for laying a secondary cable of the externally hung electric chassis mechanism.

Description

Mounting structure of externally-hung electric mechanism Technical Field The utility model belongs to the technical field of electric intelligent switch cabinets, and particularly relates to an installation structure of an externally hung electric mechanism. Background The intelligent low-carbonization transformation of the medium-voltage switch cabinet is a necessary trend, and the core aims at improving the reliability of a power grid, adapting to new energy access, reducing operation and maintenance cost and meeting industrial automation requirements are achieved. With the technical progress, the electric intelligent switch cabinet becomes a key device of a power distribution network and an industrial power supply system in the future. At present, most of circuit breakers and functional trolleys of electric intelligent switch cabinets adopt a built-in electric chassis truck scheme, but the scheme is troublesome in maintenance and repair because a motor and a transmission mechanism are arranged in a chassis of the trolley and the chassis truck is required to operate in the cabinet, the trolley is required to be disassembled and a bus is required to be stopped for treatment. Based on the design disadvantage of the built-in electric chassis, from the considerations of shortening the bus stop time, not changing the structure of the circuit breaker and improving the suitability, the scheme for realizing the separation structure of the motor of the electric chassis and the chassis vehicle is already available on the market. Disclosure of utility model The utility model aims to provide the mounting structure of the externally hung electric mechanism, which has the advantages of simple structure, low cost, convenience in maintenance and overhaul and capability of improving the operation and maintenance work efficiency. The utility model discloses an installation structure of an externally-hung electric mechanism, which is characterized by comprising a box body detachably installed on the outer surface of a door plate of a breaker chamber of a switch cabinet, a box door hinged on a door opening of the box body and an externally-hung electric chassis mechanism installed in the box body, wherein the externally-hung electric chassis mechanism consists of a driving motor, a tripping clutch, a manual operation shaft and a driving shaft sleeve, the tripping clutch is connected with a power output shaft of the driving motor, the tripping clutch is provided with the manual operation shaft and the driving shaft sleeve, the linkage end of the manual operation shaft penetrates out of a breaker operation hole on the box door for inserting an operation handle to perform manual shaking in and out operation, and the driving shaft sleeve extends out of a box bottom plate for connecting a chassis operation screw rod. When in operation and maintenance, the utility model can realize quick replacement of the external-hanging electric chassis truck mechanism without opening a switch cabinet breaker chamber door plate, realize uninterrupted maintenance and improve the working efficiency of operation and maintenance, and has simple structure, low cost and convenient maintenance and overhaul, thereby being suitable for wide popularization and use. The utility model provides a circuit breaker operation hole on the outer plate surface of a box door, which is provided with a baffle mechanism, wherein the baffle mechanism consists of a base fixed on the edge of the circuit breaker operation hole and a baffle which can be opened and closed, the base is provided with a through hole corresponding to the circuit breaker operation hole, one end of the baffle is hinged with the base, the other end of the baffle can be buckled with the base and is provided with a hanging lock hole for installing a program padlock, a travel switch is arranged in the box body and is electrically connected in an electric operation loop of a driving motor, and the travel switch is opened or closed in linkage with the opening and closing of the baffle and the box door, and can be closed only when the box door and the baffle are simultaneously closed. Thus, the manual priority function can be realized, and the problem of misoperation during maintenance can be avoided. The edge of the door of the box body is provided with the protection bent edge, so that the protection grade requirement of IP4X can be met when the box door is closed. The door is provided with the rotary door lock, a lock tongue of the rotary door lock can rotate and is clamped at the inner side of a door opening of the box body to lock and close the box body and the door, and the rotary door lock is provided with a hanging lock hole capable of installing a program padlock. The box body is rectangular, a thick steel plate is welded on the inner plate surface of the bottom plate of the box body, and the externally-hung electric chassis mechanism is arranged on the fixed bracket and is detachably arranged