CN110828249A - A clutch mechanism for electric operating mechanism of circuit breaker - Google Patents

Abstract

The invention belongs to the technical field of circuit breaker operating mechanisms, and particularly relates to a clutch mechanism for an electric operating mechanism of a circuit breaker, which comprises a driving part, a driven part, a control block and a bidirectional retaining mechanism, wherein the driving part is connected with the driven part; the driving part and the driven part form coaxial line rotation arrangement; the control block comprises a switching part and a clamping part, and the control block is rotatably connected with the driven part through the switching part; the driven part is provided with a disengaging station and a closing station, and the clamping part of the control block reciprocates between the disengaging station and the closing station; the bidirectional holding mechanism is connected with the control block and the driven piece; and the inner ring surface of the driving part is provided with a plurality of clamping grooves used for being matched with the clamping parts of the control block. The clutch mechanism for the electric operating mechanism of the circuit breaker has the advantages of simple structure, small size and low cost, and is convenient for the circuit breaker mechanism to perform electric and manual switching-on or switching-off.

Description

A clutch mechanism for electric operating mechanism of circuit breaker

technical field

The invention belongs to the technical field of circuit breakers, and in particular relates to a clutch mechanism for an electric operating mechanism of a circuit breaker.

Background technique

The circuit breaker mechanism needs to be closed electrically and manually, and can be tripped and opened after closing. The existing circuit breaker mechanism realizes electric and manual closing through the clutch, and tripping and opening after closing, but the existing one-way clutch cannot realize two-way separation, and the existing two-way clutch has a complex structure, a large volume, High cost and difficult to assemble within the circuit breaker mechanism. Therefore, a clutch mechanism is urgently needed to realize the closing and opening of the electric operating mechanism of the circuit breaker.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a clutch mechanism for an electric operating mechanism of a circuit breaker to solve the above-mentioned technical problems.

In order to solve the above technical problems, the present invention provides a clutch mechanism for an electric operating mechanism of a circuit breaker, including a driving member, a driven member, a control block and a bidirectional holding mechanism;

The driving member and the driven member form a coaxial rotation arrangement;

The control block includes an adapter part and a clamping part, and the control block is rotatably connected with the follower through the adapter part;

The follower is provided with a disengagement station and a closing station, and the clamping part of the control block reciprocates in the disengagement station and the closing station;

the two-way holding mechanism connects the control block and the follower;

The inner ring surface of the driving element is provided with a plurality of clamping grooves for cooperating with the clamping part of the control block;

When the catch portion of the control block rotates to the closed position with the follower, the catch portion on the control block forms a snap fit with the catch groove of the driving piece, and the two-way holding mechanism is suitable for the control block The clamping part of the device is kept in the closed position, so that the driving part and the driven part can rotate synchronously;

When the catch portion of the control block is rotated to the disengagement position by external force, the catch portion on the control block is disengaged from the catch groove of the driving member, and the two-way holding mechanism is suitable for the catch of the control block. The part is kept in the disengaged position, so that the driving part and the driven part can rotate relative to each other.

Further: the control block includes a clamping block, a transmission block and a rotating shaft;

the rotating shaft is rotatably connected with the follower;

The clamping block includes an adapter part and a clamping part, the adapter part of the clamping block is connected with the rotating shaft and is suitable for the synchronous rotation of the rotating shaft, and the clamping part of the clamping block is suitable for clamping with the driving part. slot fit;

The transmission block includes an adapter part and a connection part, the adapter part of the transmission block is connected with the rotating shaft and is suitable for driving the rotating shaft to rotate, and the connection part of the transmission block is connected with the bidirectional holding mechanism;

When the clamping part of the clamping block rotates to the closed position with the follower, the clamping part of the clamping block forms a clamping fit with the clamping groove of the driving part, and the two-way holding mechanism is connected by the transmission block and The rotating shaft drives the clamping part of the clamping block to maintain the clamping and cooperation with the clamping groove of the driving part, so that the driving part and the driven part can rotate synchronously;

When the clamping part of the clamping block is rotated to the disengaged position by external force, the clamping part on the clamping block is disengaged from the clamping groove of the driving part, and the two-way holding mechanism is driven by the transmission block and the rotating shaft The clamping part of the clamping block is kept disengaged from the clamping groove of the driving piece, so that the driving piece and the driven piece can rotate relative to each other.

Further: the two-way holding mechanism includes a tension spring and a tension spring shaft, the tension spring shaft is fixedly connected to the driven member, one end of the tension spring is connected to the tension spring shaft, and the other end of the tension spring is connected to the transmission block. The connection part is connected, and the transfer part of the transmission block is located between the tension spring shaft and the connection part of the transmission block.

Further, a bracket is fixedly arranged on the follower, the tension spring shaft is fixedly arranged on the bracket, and the upper end of the rotating shaft passes through the bracket.

Further: it also includes a casing, a motor and a gear transmission mechanism are arranged in the casing, the driving part is a ring gear, and the gear transmission mechanism is connected with the motor and the ring gear.

The beneficial effect of the present invention is that, when the clutch mechanism for the electric operating mechanism of the circuit breaker of the present invention is used, when the engaging part of the control block is rotated to the closed position with the driven part, the engaging part on the control block and the driving part are made to The clamping slot of the control block forms a clamping fit, and the two-way holding mechanism is suitable for keeping the clamping part of the control block in the closed position, so that the driving part and the driven part can rotate synchronously;

When the clamping part of the control block is rotated to the disengagement position by external force, the clamping part on the control block is disengaged from the clamping groove of the driving piece. position, so that the driving member and the driven member can rotate relative to each other.

At the same time, the clutch mechanism of the present invention is simple in structure, small in volume, low in production cost, convenient to be installed on the circuit breaker operating mechanism, and convenient for the circuit breaker operating mechanism to open and close electrically and manually.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the description, claims and drawings.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the perspective view of the preferred embodiment when the control block of the present invention is located in the disengagement station;

Fig. 2 is the perspective view of the preferred embodiment of the active element of the present invention;

Figure 3 is a perspective view of a preferred embodiment of the follower of the present invention;

4 is a perspective view of a preferred embodiment of the control block of the present invention;

Fig. 5 is the perspective view of the preferred embodiment when the control block of the present invention is located in the closed station;

6 is a perspective view of a preferred embodiment of the bidirectional holding mechanism of the present invention.

In the picture:

1. Chassis; 3. Active part; 31. Snap slot; 4. Follower; 41, Close station; 42, Disengage station; 5, Control block; 51, Snap block; 511, Snap part ; 52, transmission block; 53, shaft; 6, two-way holding mechanism; 61, tension spring; 62, tension spring shaft; 7, bracket; 8, motor.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1 is a schematic diagram of a preferred embodiment of a clutch mechanism for an electric operating mechanism of a circuit breaker according to the present invention;

As shown in FIGS. 1 to 3 , this embodiment provides a clutch mechanism for an electric operating mechanism of a circuit breaker, including a casing 1 , a driving member 3 , a driven member 4 , a control block 5 and a bidirectional holding mechanism 6 . The driving member 3 and the driven member 4 are rotatably arranged coaxially. The control block 5 includes an adapter portion and a clamping portion 511 , and the control block 5 is rotatably connected to the driven member 4 through the adapter portion. The follower 4 is provided with a disengagement station 42 and a closing station 41 , and the engaging portion 511 of the control block 5 reciprocates in the disengagement station 42 and the closing station 41 . The two-way holding mechanism 6 connects the control block 5 and the follower 4 , and the inner ring surface of the driving element 3 is provided with a plurality of snap grooves 31 for matching with the snap portions 511 of the control block 5 . The casing 1 is provided with a motor 8 and a gear transmission mechanism, the driving member 3 is a ring gear, and the gear transmission mechanism 2 is used to connect the motor 8 and the ring gear.

Specifically, when the engaging portion 511 of the control block 5 rotates with the follower 4 to the closed station 41, the engaging portion 511 on the control block 5 forms a snap fit with the engaging groove 31 of the driving member 3, and the two-way holding mechanism 6 is suitable for keeping the engaging portion 511 of the control block 5 in the closed position 41, so as to make the driving member 3 and the driven member 4 rotate synchronously.

When the engaging portion 511 of the control block 5 is rotated to the disengagement position 42 by an external force, the engaging portion 511 on the control block 5 is disengaged from the engaging groove 31 of the driving member 3 , and the two-way holding mechanism 6 is suitable for the control block 5 The latching portion 511 of the device is kept in the disengagement position 42, so that the driving member 3 and the driven member 4 can rotate relative to each other.

4 is an optional perspective view of the control block 5 of the present invention;

Optionally, in this embodiment, the control block 5 includes a clamping block 51 , a transmission block 52 and a rotating shaft 53 . The rotating shaft 53 is rotatably connected with the follower 4 . The transmission block 52 is arranged at the upper end of the rotating shaft 53 , and the clamping block 51 is arranged at the lower end of the rotating shaft 53 .

Specifically, the clamping block 51 includes an adapter portion and a clamping portion 511 , the adapter portion of the clamping block 51 is synchronously rotationally connected (that is, fixedly connected) with the rotating shaft 53 , and the clamping portion 511 of the clamping block 51 is connected to the driving member. 3 of the clip slot 31 is adapted.

Specifically, the transmission block 52 includes an adapter portion and a connecting portion. The adapter portion of the transmission block 52 is fixedly connected to the rotating shaft 53 and is suitable for driving the rotating shaft 53 to rotate. The connecting portion of the transmission block 52 is connected to the bidirectional holding mechanism 6 .

As shown in FIG. 5 , when the engaging portion 511 of the engaging block 51 rotates with the driven member 4 to the closed station 41 , the engaging portion 511 of the engaging block 51 forms a snap fit with the engaging groove 31 of the driving member 3 . , the two-way holding mechanism 6 drives the engaging portion 511 of the engaging block 51 through the transmission block 52 and the rotating shaft 53 to maintain engaging with the engaging groove 31 of the driving member 3 , so that the driving member 3 and the driven member 4 rotate synchronously.

As shown in FIG. 1 , when the clamping portion 511 of the clamping block 51 is rotated to the disengagement position 42 by an external force, the clamping portion 511 on the clamping block 51 is disengaged from the clamping groove 31 of the driving member 3 , and the two-way maintaining The mechanism 6 drives the engaging portion 511 of the engaging block 51 through the transmission block 52 and the rotating shaft 53 to keep disengaged from the engaging groove 31 of the driving member 3 , so that the driving member 3 and the driven member 4 rotate relative to each other.

6 is an optional perspective view of the bidirectional holding mechanism 6 of the present invention;

Specifically, the two-way holding mechanism 6 in this embodiment includes a tension spring 61 and a tension spring shaft 62. The tension spring shaft 62 is fixedly connected to the follower 4, one end of the tension spring 61 is connected to the tension spring shaft 62, and the other end of the tension spring 61 is connected to the tension spring shaft 62. One end is connected to the connection part of the transmission block 52 , and the transition part of the transmission block 52 is located between the tension spring shaft 62 and the connection part of the transmission block 52 .

The connecting part of the transmission block 52 is a pin shaft in this embodiment, the pin shaft is fixedly arranged on the transmission block, and the pin shaft has the same function as the tension spring shaft 62 , both are used to connect the tension spring 61 .

FIG. 6 is an optional perspective view of the bracket 7 of the present invention;

Optionally, a bracket 7 is fixedly arranged on the follower 4 , the tension spring shaft 62 is fixedly arranged on the bracket 7 , and the upper end of the rotating shaft 53 passes through the bracket 7 . The bracket 7 can increase the support and transmission strength of the rotating shaft 53 .

In summary,

When the electric operating mechanism of the circuit breaker is used with the clutch mechanism, when the circuit breaker mechanism does the opening operation, the energy storage spindle on the circuit breaker mechanism drives the follower 4 and the control block 5 to rotate counterclockwise. After being blocked by the stopper pin in the housing 1, rotate clockwise, so that the clamping part 511 of the clamping block 51 rotates around the rotating shaft 53 to the closed station 41, and the center of the pin on the connecting part of the transmission block 52 crosses the center of the rotating shaft 53 Connected with the center of the tension spring shaft 62, the tension spring shaft 62 drives the transmission block 52 to rotate, the transmission block 52 drives the rotation shaft 53 to rotate, and the rotation shaft 53 drives the clamping block 51 to rotate, so that the clamping part 511 of the clamping block 51 and the driving part 3 The snap-fit groove 31 of the cam is formed into snap fit, and the snap fit is maintained under the action of the tension spring 61, so that the driving member 3 and the driven member 4 can rotate synchronously.

When the circuit breaker mechanism is in the closing position, the rotating paddle on the circuit breaker mechanism drives the transmission block 52 and the clamping block 51 to rotate to the disengaged position in turn, and the center of the pin on the connecting part of the transmission block 52 crosses the center of the rotating shaft 53 Connected to the center of the tension spring shaft 62, the tension spring shaft 62 drives the transmission block 52 to rotate, the transmission block 52 drives the rotation shaft 53 to rotate, and the rotation shaft 53 drives the clamping block 51 to rotate, so that the clamping part 511 on the clamping block 51 rotates from the driving member 3 is disengaged from the snap-in groove 31, and is kept disengaged under the action of the tension spring 61, so that the driving member 3 and the driven member 4 can rotate relative to each other.

The clutch mechanism of the invention is simple in structure, small in volume, low in processing and production cost, convenient to be installed on the circuit breaker operating mechanism, and convenient for the circuit breaker operating mechanism to open and close electrically and manually.

Each device component selected in this application is a general standard component or a component known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods.

In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or Integrally connected; either mechanical or electrical. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other manners, and the device embodiments described above are merely illustrative.

Taking the above ideal embodiments according to the present invention as inspiration, and through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the contents in the specification, and the technical scope must be determined according to the scope of the claims.

Claims (5)

1. The utility model provides a circuit breaker clutching mechanism for electric operating mechanism which characterized by:

comprises a driving part (3), a driven part (4), a control block (5) and a bidirectional holding mechanism (6);

the driving part (3) and the driven part (4) form coaxial rotation;

the control block (5) comprises a switching part and a clamping part (511), and the control block (5) is rotationally connected with the driven part (4) through the switching part;

a disengaging station (42) and a closing station (41) are arranged on the driven part (4), and a clamping part (511) of the control block (5) reciprocates between the disengaging station (42) and the closing station (41);

the bidirectional holding mechanism (6) is connected with the control block (5) and the driven piece (4);

the inner ring surface of the driving piece (3) is provided with a plurality of clamping grooves (31) which are used for being matched with the clamping parts (511) of the control block (5);

when the clamping part (511) of the control block (5) rotates to the closing station (41) along with the driven part (4), the clamping part (511) on the control block (5) and the clamping groove (31) of the driving part (3) form clamping fit, and the bidirectional holding mechanism (6) is suitable for keeping the clamping part (511) of the control block (5) at the closing station (41) so as to enable the driving part (3) and the driven part (4) to synchronously rotate;

when the clamping portion (511) of the control block (5) rotates to the disengaging station (42) under the action of external force, the clamping portion (511) on the control block (5) disengages from the clamping groove (31) of the driving part (3), and the bidirectional holding mechanism (6) is suitable for keeping the clamping portion (511) of the control block (5) at the disengaging station (42) so that the driving part (3) and the driven part (4) rotate relatively.

2. The clutch mechanism for an electric operating mechanism of a circuit breaker according to claim 1, wherein:

the control block (5) comprises a clamping block (51), a transmission block (52) and a rotating shaft (53);

the rotating shaft (53) is rotationally connected with the driven part (4);

the clamping block (51) comprises a switching part and a clamping part (511), the switching part of the clamping block (51) is connected with the rotating shaft (53) and is suitable for synchronously rotating with the rotating shaft (53), and the clamping part (511) of the clamping block (51) is suitable for being matched with the clamping groove (31) of the driving part (3);

the transmission block (52) comprises an adapter part and a connecting part, the adapter part of the transmission block (52) is connected with the rotating shaft (53) and is suitable for driving the rotating shaft (53) to rotate, and the connecting part of the transmission block (52) is connected with the bidirectional retaining mechanism (6);

when the clamping part (511) of the clamping block (51) rotates to the closed station (41) along with the driven part (4), the clamping part (511) of the clamping block (51) and the clamping groove (31) of the driving part (3) form clamping fit, and the bidirectional holding mechanism (6) drives the clamping part (511) of the clamping block (51) to keep clamping fit with the clamping groove (31) of the driving part (3) through the transmission block (52) and the rotating shaft (53) so as to enable the driving part (3) and the driven part (4) to rotate synchronously;

when joint portion (511) of joint piece (51) receive external force rotatory to breaking away from during station (42), joint portion (511) on joint piece (51) break away from in joint groove (31) of driving part (3), two-way retaining mechanism (6) drive joint portion (511) of joint piece (51) through transmission piece (52) and pivot (53) keep breaking away from in joint groove (31) of driving part (3) to make driving part (3) and follower (4) do relative rotation.

3. The clutch mechanism for an electric operating mechanism of a circuit breaker according to claim 2, wherein:

two-way hold mechanism (6) are including extension spring (61) and extension spring axle (62), extension spring axle (62) and follower (4) fixed connection, extension spring (61) one end is connected with extension spring axle (62), the other end and the connecting portion of transmission piece (52) of extension spring (61) are connected, the switching portion of transmission piece (52) is located between the connecting portion of extension spring axle (62) and transmission piece (52).

4. The clutch mechanism for an electric operating mechanism of a circuit breaker according to claim 3, wherein:

a support (7) is fixedly arranged on the driven piece (4), the tension spring shaft (62) is fixedly arranged on the support (7), and the upper end of the rotating shaft (53) penetrates through the support (7).

5. The clutch mechanism for an electric operating mechanism of a circuit breaker according to claim 2, wherein: still include casing (1), set up motor (8) and gear drive in casing (1), driving part (3) are the ring gear, gear drive connects motor (8) and ring gear.

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