A quick-clutch auxiliary device for opening and closing a circuit breaker

Abstract

The present invention relates to a quick-clutch auxiliary device for opening and closing a circuit breaker, which is used for the opening and closing operations of a molded case circuit breaker, and includes: a support mechanism; a positioning and clamping mechanism, which is installed on the front surface of the support mechanism and is used for positioning and clamping the circuit breaker; an opening and closing operation mechanism, which is installed on the support mechanism and is used for the opening and closing operations, and includes: an opening and closing link assembly, and a claw is provided at the end of the opening and closing link assembly; and an opening and closing cylinder, which is in transmission connection with the opening and closing link assembly and drives it to act. This device realizes the opening and closing operations of the molded case circuit breaker, changes the traditional manual opening and closing operation mode, is applicable to the opening and closing operations in the production process of large-sized circuit breakers, effectively reduces the operation intensity, and improves the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of molded case circuit breakers, and more particularly to a quick clutch auxiliary device for opening and closing a circuit breaker. Background Art

[0002] During the production process of molded case circuit breakers, each product needs to be subjected to multiple opening and closing operations to verify the reliability of the product. Traditional opening and closing operations are manually completed. Especially for products with relatively large rated currents (such as 400A, 630A, etc.), due to the relatively large volume of the circuit breaker, the labor intensity of manual opening and closing operations is relatively high, and the efficiency is low. Therefore, there is an urgent need for a device that can realize the opening and closing operations of the circuit breaker to achieve quick opening and closing operations during the reliability detection of large-sized circuit breakers. Summary of the Invention

[0003] The purpose of the present invention is to provide a quick clutch auxiliary device for opening and closing a circuit breaker to achieve quick opening and closing operations during the reliability detection of large-sized circuit breakers in order to solve the above problems.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A quick clutch auxiliary device for opening and closing a circuit breaker, which is used for the opening and closing operations of a molded case circuit breaker, includes:

[0006] A support mechanism;

[0007] A positioning and clamping mechanism, which is installed on the front of the support mechanism and is used for positioning and clamping the circuit breaker;

[0008] An opening and closing operation mechanism, which is installed on the support mechanism and is used for the opening and closing operations, including:

[0009] An opening and closing link assembly, with a claw provided at the end of the opening and closing link assembly; and

[0010] An opening and closing cylinder, which is in transmission connection with the opening and closing link assembly and drives its movement.

[0011] This device realizes the opening and closing operations of the molded case circuit breaker, changes the traditional manual opening and closing operation mode, is applicable to the opening and closing operations during the production process of large-sized circuit breakers, effectively reduces the operation intensity, and improves the production efficiency.

[0012] As a preferred technical solution, the support mechanism includes a support frame and a bottom plate installed on the support frame along a vertical diagonal direction;

[0013] The positioning and clamping mechanism is installed on the front of the bottom plate, the opening and closing link assembly and the opening and closing cylinder are installed on the back of the bottom plate, and the claw of the opening and closing link assembly passes through the bottom plate and is located on the front of the bottom plate.

[0014] As a preferred technical solution, the support frame includes a support base at the bottom and a support frame mounted on the support base.

[0015] As a preferred technical solution, the positioning and clamping mechanism includes a limit support plate and a limit elbow clamp at the upper part. The limit elbow clamp is located at the upper part of the limit support plate. The lower part of the circuit breaker is limited by the limit support plate, and the upper part is fixed by the limit elbow clamp.

[0016] As a preferred technical solution, the limit support plate is vertically installed on the bottom plate. A guard plate is provided at the upper part of the limit support plate, and the limit elbow clamp is a manual caliper.

[0017] As a preferred technical solution, the closing and opening link assembly includes a link, a rotating shaft, a link mounting seat, a double-ear connecting plate and a claw;

[0018] The link is rotatably installed on the link mounting seat through the rotating shaft. One end of the link is hinged to the output end of the closing and opening cylinder at a certain angle. The other end of the link is hinged to the double-ear connecting plate. The claw is fixedly installed at the end of the double-ear connecting plate. With this structure, multi-degree-of-freedom movement of the closing and opening link assembly can be realized, facilitating the closing and opening operations of the molded case circuit breaker.

[0019] As a preferred technical solution, the rotation direction of the double-ear connecting plate is perpendicular to the rotation direction of the link around the link mounting seat. The claw and the link are connected by a shaft and can rotate. During the loading and unloading process of the circuit breaker, the claw can be rotated to achieve unobstructed loading and unloading of the circuit breaker.

[0020] As a preferred technical solution, the claw is matched with the handle of the circuit breaker.

[0021] As a preferred technical solution, the two air inlets of the closing and opening cylinder are connected to two three-port two-position mechanical valves.

[0022] The two three-port two-position mechanical valves respectively control the two air inlets of the closing and opening cylinder to drive the closing and opening link to achieve closing and opening operations. The function of using two three-port two-position mechanical valves to control one cylinder is that when neither of the mechanical valves is operated, the cylinder is in a free state, that is, during the loading and unloading process of the circuit breaker, the entire link assembly can move freely, facilitating the loading and unloading of the circuit breaker.

[0023] As a preferred technical solution, the auxiliary device is provided with a probe assembly for connecting the circuit breaker to an external test device. The probe assembly can be actuated through a driving mechanism. When the circuit breaker is installed in place, the probe assembly is lifted up and inserted into the circuit breaker to achieve connection; when the circuit breaker is not installed or no testing is performed, it retracts.

[0024] The specific use process of this device is as follows: Place the circuit breaker to be detected on the positioning and clamping mechanism of the support mechanism. After being installed in place, perform clamping and fixation. Clamp the jaws of the closing and opening operating mechanism on the handle of the circuit breaker, and realize the closing and opening operations of the handle of the circuit breaker through the linkage of the closing and opening cylinder and the closing and opening link assembly, and detect its performance.

[0025] Compared with the prior art, this device has the following beneficial effects:

[0026] 1. This device realizes the closing and opening operations of the molded case circuit breaker, changes the traditional manual closing and opening operation mode, is applicable to the closing and opening operations in the production process of large-sized circuit breakers, reduces the operation intensity, and improves the production efficiency.

[0027] 2. This device utilizes the function of the link. Through two three-port two-position mechanical valves, the two cylinder air inlets of the closing and opening cylinder are respectively controlled to drive the closing and opening link to realize the closing and opening operations. In the case where neither of the mechanical valves is operated, the cylinder is in a free state, that is, during the loading and unloading of the circuit breaker, the link assembly can move freely, facilitating the loading and unloading of the circuit breaker.

[0028] 3. The closing and opening jaws are connected to the link by a shaft and can rotate. During the loading and unloading of the circuit breaker, the jaws can be rotated to realize the unobstructed loading and unloading of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the front structural schematic diagram when this device is in use;

[0030] Figure 2 is the back structural schematic diagram of this device;

[0031] Figure 3 is the side view structural schematic diagram of this device;

[0032] Figure 4 is the structural schematic diagram of the closing and opening link assembly and the closing and opening cylinder of this device;

[0033] In the figure: 1 - circuit breaker; 2 - bottom plate; 3 - support frame; 4 - closing and opening link assembly; 5 - closing and opening cylinder; 6 - limit elbow clamp; 7 - limit support plate; 8 - probe assembly;

[0034] 401 - link; 402 - link mounting seat; 403 - rotating shaft; 404 - double-ear connecting plate; 405 - jaw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Refer to Figure 1 、 2And 3. A circuit breaker closing and opening fast clutch auxiliary device, used for closing and opening operations of molded case circuit breaker, comprising:

[0037] The supporting mechanism comprises a supporting frame 3 and a base plate 2 installed on the supporting frame 3 in a vertical and oblique direction. The supporting frame 3 comprises a supporting seat at the bottom and a supporting frame installed on the supporting seat.

[0038] The positioning and clamping mechanism is installed on the front of the support mechanism and is used to position and clamp the circuit breaker 1. The positioning and clamping mechanism includes a limiting support plate 7 and an upper limiting toggle clamp 6. The limiting toggle clamp 6 is located on the upper part of the limiting support plate 7. The lower part of the circuit breaker 1 is limited by the limiting support plate 7, and the upper part is fixed by the limiting toggle clamp 6. The limiting support plate 7 is vertically installed on the bottom plate 2. A guard plate is provided on the upper part of the limiting support plate 7 to limit the height of the circuit breaker. The limiting toggle clamp 6 is a manual clamp or a pneumatically controlled pressure rod.

[0039] The closing and opening switch operating mechanism is installed on the supporting mechanism and is used for closing and opening switch operations, and includes a closing and opening switch connecting rod assembly 4, at the end of which a claw 405 is provided; and a closing and opening switch cylinder 5, which is transmission-connected with the closing and opening switch connecting rod assembly 4 and drives it to operate. The closing and opening switch connecting rod assembly 4 and the closing and opening switch cylinder 5 are installed on the back side of the bottom plate 2, and the claw 405 of the closing and opening switch connecting rod assembly 4 passes through the bottom plate 2 and is located on the front side of the bottom plate 2.

[0040] like Figure 4 The closing and opening connecting rod assembly 4 comprises a connecting rod 401, a rotating shaft 403, a connecting rod mounting seat 402, a double-ear connecting plate 404 and a claw 405; the connecting rod 401 is rotatably mounted on the connecting rod mounting seat 402 through the rotating shaft 403, one end of the connecting rod 401 is hinged with the output end of the closing and opening cylinder 5 at a certain angle, the other end of the connecting rod 401 is hinged with the double-ear connecting plate 404, and the claw 405 is fixedly mounted at the end of the double-ear connecting plate 404. Through this structure, the closing and opening connecting rod 401 assembly 4 can achieve multi-degree-of-freedom movements, which is convenient for the closing and opening operations of the molded case circuit breaker 1. The rotation direction of the double-ear connecting plate 404 is perpendicular to the rotation direction of the connecting rod around the connecting rod mounting seat, and the claw 405 is connected to the connecting rod 401 through an axis, so that rotation can be achieved. During the loading and unloading process of the circuit breaker 1, the claw can be rotated to achieve unobstructed loading and unloading of the circuit breaker 1, and the claw 405 is matched with the handle of the circuit breaker 1.

[0041] The two cylinder vents of the closing and opening cylinder 5 are connected to two three-port two-position mechanical valves, and the two three-port two-position mechanical valves respectively control the two cylinder vents of the closing and opening cylinder 5 to drive the closing and opening connecting rods to realize the closing and opening operations. The function of using two three-port two-position mechanical valves to control one cylinder is that when none of the mechanical valves is operated, the cylinder is in a free state, that is, during the loading and unloading process of the circuit breaker 1, the entire connecting rod assembly can move freely, which is convenient for the loading and unloading of the circuit breaker 1.

[0042] The auxiliary device is provided with a probe assembly 8 for connecting the circuit breaker 1 to an external test device. It can be seen that a set can be respectively arranged above and below as required. The probe assembly 8 can be actuated by a driving mechanism (such as a cylinder). After the circuit breaker 1 is installed in place, the probe assembly is jacked up and inserted into the circuit breaker 1 to achieve connection; when the circuit breaker 1 is not installed or testing is not carried out, it retracts.

[0043] The specific use process of this device is as follows: Place the circuit breaker to be detected on the positioning and clamping mechanism of the supporting mechanism. After it is installed in place, it is clamped and fixed. The claw of the closing and opening operating mechanism is clamped on the handle of the circuit breaker, and the closing and opening operations of the handle of the circuit breaker are realized through the linkage of the closing and opening cylinder and the closing and opening link assembly, and its performance is detected. This device realizes the closing and opening operations of the molded case circuit breaker, changes the traditional manual closing and opening operation mode, is applicable to the closing and opening operations in the production process of large-sized circuit breakers, reduces the operation intensity, and improves the production efficiency.

[0044] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. A quick-clutch auxiliary device for opening and closing a circuit breaker, which is used for the opening and closing operations of a molded case circuit breaker, and is characterized in that, include: Support mechanism; A positioning and clamping mechanism, mounted on the front side of the supporting mechanism, and used for positioning and clamping the circuit breaker (1); A switch-on / off operating mechanism is mounted on the support mechanism and is used for the operation of the switch-on / off operation, comprising: a switch-on / off connecting rod assembly (4), and a switch-on / off cylinder (5) which is transmission-connected to the switch-on / off connecting rod assembly (4) and drives the switch-on / off connecting rod assembly (4) to operate; The closing / opening switch connecting rod assembly (4) comprises a connecting rod (401), a rotating shaft (403), a connecting rod mounting seat (402), a double-ear connecting plate (404) and a claw (405); the connecting rod (401) is rotatably mounted on the connecting rod mounting seat (402) via the rotating shaft (403); one end of the connecting rod (401) is hinged to the output end of the closing / opening switch cylinder (5) at a certain angle; the other end of the connecting rod (401) is hinged to the double-ear connecting plate (404); the claw (405) is fixedly mounted on the end of the double-ear connecting plate (404); the rotation direction of the double-ear connecting plate (404) is perpendicular to the rotation direction of the connecting rod around the connecting rod mounting seat; the claw (405) is matched with the handle of the circuit breaker (1).

2. The quick-clutch auxiliary device for opening and closing a circuit breaker according to claim 1, characterized in that, The support mechanism comprises a support frame (3) and a base plate (2) installed vertically and obliquely on the support frame (3); The positioning and clamping mechanism is mounted on the front side of the base plate (2), the closing and opening connecting rod assembly (4) and the closing and opening cylinder (5) are mounted on the back side of the base plate (2), and the clamping claw (405) of the closing and opening connecting rod assembly (4) passes through the base plate (2) and is located on the front side of the base plate (2).

3. The quick-clutch auxiliary device for opening and closing a circuit breaker according to claim 2, characterized in that, The support frame (3) comprises a support seat at the bottom and a support frame mounted on the support seat.

4. The quick-clutch auxiliary device for opening and closing a circuit breaker according to claim 2, characterized in that, The positioning and clamping mechanism comprises a limiting support plate (7) and an upper limiting toggle clamp (6), wherein the limiting toggle clamp (6) is located on the upper part of the limiting support plate (7), the lower part of the circuit breaker (1) is limited by the limiting support plate (7), and the upper part is fixed by the limiting toggle clamp (6).

5. An auxiliary device for quick clutch of opening and closing of a circuit breaker according to claim 4, characterized in that The position-limiting support plate (7) is vertically mounted on the bottom plate (2); a guard plate is provided on the upper portion of the position-limiting support plate (7); and the position-limiting elbow clamp (6) is a manual caliper.

6. A quick-clutch auxiliary device for opening and closing a circuit breaker according to claim 1, characterized in that, The two cylinder vents of the closing and opening cylinder (5) are connected to two three-port two-position mechanical valves.

7. An auxiliary device for quick clutch of opening and closing of a circuit breaker according to any one of claims 1-6, characterized in that The auxiliary device is provided with a probe assembly (8) for connecting the circuit breaker (1) to an external testing device, and the probe assembly (8) can be actuated by a driving mechanism.

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