CN216818240U

CN216818240U - Action counting device of circuit breaker

Info

Publication number: CN216818240U
Application number: CN202220182379.2U
Authority: CN
Inventors: 赵天民; 李杭杭; 王鑫贵; 宋春龙
Original assignee: Xi'an Shenxi Electric Co ltd
Current assignee: Xi'an Shenxi Electric Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-24
Anticipated expiration: 2032-01-24

Abstract

A circuit breaker action counting device comprises a circuit breaker driving mechanism and a bending piece fixed on a circuit breaker rear cover, wherein a counter is fixed on the bending piece; the transmission shaft is in threaded connection with the circuit breaker driving mechanism; the transmission shaft is connected with one end of the spring; the other end of the spring is connected with a crank arm on the counter; the circuit breaker driving mechanism is electrified to drive the transmission shaft to move forwards and sequentially drive the pin shaft, the spring and the crank arm to move until the circuit breaker is switched on, the counting device is in a trigger state, and the counter counts once; when the circuit breaker driving mechanism is powered off, the transmission shaft moves in the opposite direction under the action of the self-reset spring to sequentially drive the pin shaft, the spring and the crank arm to move until the circuit breaker is opened, and the counting device returns to the initial state; the device has the characteristics of simple structure, convenience in installation, flexibility in operation and long service life.

Description

Action counting device of circuit breaker

Technical Field

The utility model belongs to the technical field of circuit breakers, and particularly relates to a circuit breaker action counting device which is applied to counting on a vehicle-mounted circuit breaker (a circuit breaker for short) in the field of light rail power transmission and distribution.

Background

The breaker can perform closing and opening actions in the normal use process; action 1 time on average a day, accurate record circuit breaker divide-shut brake number of times can monitor the action number of times of circuit breaker, compares the difference between circuit breaker in-service use operating mode and the experimental test action number of times.

At present, the existing counting device adopts a driving mechanism transmission shaft to drive a counter crank arm to carry out closing and opening movement, thereby realizing the counting of the circuit breaker; however, the counting device has the defects that the transmission shaft is rigidly connected with the counter crank arm, the transmission shaft directly impacts the counter crank arm in the closing and dividing processes of the circuit breaker, and the accuracy of the counter equipment is influenced after long-term use; on the other hand, the rigid connection can lead to abrasion of the contact part of the transmission shaft and the crank arm of the counter, the risk that the counter cannot be triggered can occur after long-term use, and the closing and opening of the circuit breaker cannot be recorded in time.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the action counting device of the circuit breaker, the counter is connected with the circuit breaker driving mechanism through the spring, the action times of the circuit breaker are recorded, and the action counting device has the characteristics of simple structure, convenience in installation, flexibility in operation and long service life.

In order to achieve the purpose, the utility model adopts the technical scheme that: a circuit breaker action counting device is characterized by comprising a circuit breaker driving mechanism, a bending piece fixed on a circuit breaker rear cover, and a counter fixed on the bending piece; the transmission shaft is in threaded connection with the circuit breaker driving mechanism; the transmission shaft is connected with one end of the spring; the other end of the spring is connected with a crank arm on the counter.

The spring is connected with the transmission shaft through a pin shaft.

The utility model has the beneficial effects that:

the whole counting device has two states: the initial state corresponds to the opening position of the breaker; the trigger state corresponds to a breaker on position. The circuit breaker driving mechanism is electrified, is driven by electromagnetic force to start switching on, and simultaneously drives the transmission shaft, the spring and the connecting lever to move, the counting device starts to move from an initial state until the switching on of the circuit breaker is finished, the counting device is changed into a trigger state, and the counter counts once; the circuit breaker driving mechanism loses power, the transmission shaft is under the action of the self-reset spring, the circuit breaker driving mechanism drives the transmission shaft, the spring and the connecting lever to move in the reverse direction, the counting device starts to move from a trigger state until the circuit breaker is opened, and the counting device restores to an initial state.

The utility model is arranged on the circuit breaker, realizes synchronous motion with the circuit breaker through mechanical structure connection, and can accurately record the opening and closing times of the circuit breaker; the device has the advantages of simple structure, convenient installation, flexible operation and long service life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the present invention in an initial state.

Fig. 3 is a schematic structural diagram of the present invention in a triggered state.

Fig. 4 is a schematic perspective view of the bending member 3 in fig. 1.

Fig. 5 is a schematic perspective view of the counter 4 in fig. 1.

Fig. 6 is a schematic perspective view of the transmission shaft 5 in fig. 1.

Fig. 7 is a schematic perspective view of the pin 6 in fig. 1.

Fig. 8 is a perspective view of the spring 7 in fig. 1.

Fig. 9 is a schematic perspective view of the crank arm 8 in fig. 1.

In the figure, 1-a circuit breaker drive mechanism; 2-a rear cover of the circuit breaker; 3-bending the piece; 4-a counter; 5-a transmission shaft; 6-a pin shaft; 7-a spring; 8-crank arm.

Detailed Description

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

Referring to fig. 1-9, a circuit breaker action counting device is mounted on a circuit breaker rear cover and comprises a circuit breaker driving mechanism 1, wherein a circuit breaker rear cover 2 is arranged at the front end of the circuit breaker driving mechanism 1, a transmission shaft 5 of the circuit breaker driving mechanism 1 penetrates through the geometric center of the circuit breaker rear cover 2 and is fixed on a bending piece 3 on the circuit breaker rear cover 2, and a counter 4 is fixed on the bending piece 3 through screws; the transmission shaft 5 is in threaded connection with the circuit breaker driving mechanism 1; a pin shaft 6 is arranged on the transmission shaft 5 and is used for connecting a spring 7; the counter 4 is provided with a crank arm 8, and the counter 4 is connected with the crank arm 8 and the pin shaft 6 through a spring 7.

The working principle of the utility model is as follows:

the device of the utility model is shown in a schematic structural diagram in fig. 1, an initial state in fig. 2 and a triggering state in fig. 3. When figure 2 initial condition, the circuit breaker is in the position of separating floodgate, when changing from figure 2 to figure 3, circuit breaker actuating mechanism 1 gets electric, drives transmission shaft 5 forward motion, drives round pin axle 6, spring 7 and connecting lever 8 motion in proper order, and until the circuit breaker closes a floodgate, counting assembly becomes trigger state, and the counter counts once.

When the circuit breaker driving mechanism 1 loses power, the transmission shaft 5 moves in the opposite direction under the action of the self-reset spring, and the pin shaft 6, the spring 7 and the crank arm 8 are sequentially driven to move until the circuit breaker is opened, and the counting device returns to the initial state.

It should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A circuit breaker action counting device is characterized by comprising a circuit breaker driving mechanism (1), a bending piece (3) fixed on a circuit breaker rear cover (2), and a counter (4) fixed on the bending piece (3); the transmission shaft (5) is in threaded connection with the circuit breaker driving mechanism (1); the transmission shaft (5) is connected with one end of the spring (7); the other end of the spring (7) is connected with a crank arm (8) on the counter (4).

2. A circuit breaker operation counting device according to claim 1, characterized in that said spring (7) is connected to the transmission shaft (5) by means of a pin (6).