Mounting structure of rotating shaft of circuit breaker operating mechanism
By setting up a bracket and bearing plate on the frame of the circuit breaker operating mechanism, the problem that the shaft mounting structure of the traditional circuit breaker operating mechanism cannot provide reliable movable support, and the stability of the shaft movement is achieved.
Patent Information
- Application Number
- CN202421221756.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The installation structure of the rotary shaft of the traditional circuit breaker operating mechanism cannot provide reliable movable support, resulting in poor stability when the rotary shaft moves.
An installation structure of the circuit breaker operating mechanism rotation shaft is designed, and stable movable support is provided by setting a left bracket, a right bracket, an outer bearing plate and an inner bearing plate on the frame, and using these components to rotate with the frame.
Through this design, reliable movable support for the rotating shaft is achieved and the stability of the rotating shaft movement is improved.
Smart Images
Figure CN222440507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to an installation structure of a rotating shaft of an operating mechanism of a circuit breaker. Background Art
[0002] The rotating shaft in a circuit breaker's operating mechanism is a key component, serving several key functions: 1) First, the rotating shaft plays a crucial role in converting linear motion into rotational motion. This conversion enables the circuit breaker to more efficiently execute its intended actions, thereby effectively controlling the circuit. 2) Second, the rotating shaft is a key component in controlling the circuit breaker's actions. During operations such as opening, closing, and resetting the circuit breaker, the rotating shaft plays a crucial role. It ensures that the circuit breaker operates accurately in the intended sequence and manner, thereby ensuring safe control of the power system. 3) Finally, in industrial production and power systems, circuit breakers are widely used in various scenarios, such as power distribution systems, transformers, and generator sets. In these scenarios, the rotating shaft in the circuit breaker operating mechanism is an indispensable component, and its performance and quality are directly related to the safe and stable operation of the power system. In short, the rotating shaft in the circuit breaker operating mechanism is a critical component for ensuring the proper operation of the circuit breaker and the safe control of the power system. In order to ensure its normal operation, regular inspection and maintenance should be carried out, and worn or damaged shaft parts should be replaced in time to ensure the safe, stable and reliable operation of the power system.
[0003] The conventional mounting structure for the operating mechanism shaft of a circuit breaker has been found to have shortcomings during use. The operating mechanism frame cannot provide reliable support for the shaft, resulting in poor stability during shaft movement. Therefore, it is necessary to optimize and improve the mounting structure for the conventional operating mechanism shaft of a circuit breaker. Utility Model Content
[0004] The purpose of the present utility model is to overcome the above-mentioned problems existing in the traditional technology and provide a mounting structure for a rotating shaft of a circuit breaker operating mechanism.
[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:
[0006] A mounting structure for a rotating shaft of a circuit breaker operating mechanism comprises a rotating shaft, a frame, a left bracket, a right bracket, an outer bearing plate and an inner bearing plate, wherein the frame comprises a left cover plate, a right cover plate, a front cover plate and a rear cover plate, the left cover plate is connected to the right cover plate via the rear cover plate, the front cover plate is detachably mounted on the outsides of the left cover plate and the right cover plate, the left cover plate and the right cover plate are respectively mounted with a left bracket and a right bracket on a side close to the front cover plate, the upper portion of each of the left bracket and the right bracket is provided with an open hoop for clamping the rotating shaft, two outer bearing plates and two inner bearing plates are sleeved and mounted on the rotating shaft, the two outer bearing plates are respectively rotatably connected to the left cover plate and the right cover plate of the frame via a first hinge, and the two inner bearing plates are respectively rotatably connected to the front cover plate of the frame via a second hinge.
[0007] Furthermore, in the above-mentioned installation structure of the rotating shaft of the circuit breaker operating mechanism, the left bracket is installed on the left cover plate of the frame by welding, and the right bracket is installed on the right cover plate of the frame by welding.
[0008] Furthermore, in the above-mentioned installation structure of the rotating shaft of the circuit breaker operating mechanism, the center angle occupied by the opening area of the opening hoop is 150 to 170 degrees.
[0009] Furthermore, in the above-mentioned installation structure of the rotating shaft of the circuit breaker operating mechanism, the outer bearing piece and the inner bearing piece have the same structure.
[0010] Furthermore, in the above-mentioned installation structure of the rotating shaft of the circuit breaker operating mechanism, the outer bearing plate and the inner bearing plate include a stamped plate body, and the stamped plate body is provided with a first through hole cooperating with the rotating shaft and a second through hole cooperating with the corresponding hinged member.
[0011] Furthermore, in the above-mentioned installation structure of the rotating shaft of the circuit breaker operating mechanism, the material of the outer bearing plate and the inner bearing plate is Q235 steel with self-lubricating properties.
[0012] The beneficial effects of the utility model are:
[0013] The utility model provides an installation structure for a rotating shaft of a circuit breaker operating mechanism. The installation structure is rationally designed, uses an open hoop to provide basic positioning for the rotating shaft, uses two additional outer bearing plates to connect with a left cover plate and a right cover plate of a frame, and uses two additional inner bearing plates to connect with a front cover plate of the frame. The outer bearing plates and the inner bearing plates are stamped from Q235 steel plates, have good clearance fit with the rotating shaft of the operating mechanism, and have a certain self-lubricating effect. In this way, the operating mechanism frame is used to provide reliable movable support for the rotating shaft, thereby ensuring the stability of the rotating shaft during movement.
[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from one angle;
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;
[0018] Figure 3 This is a schematic diagram of the main structure of the utility model as a whole;
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating shaft and its upper components in the utility model;
[0020] Figure 5 This is a schematic diagram of the main structure of the rotating shaft and its upper components of the utility model;
[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0022] 1-rotating shaft, 2-frame left cover, 3-frame right cover, 4-left bracket, 5-right bracket, 6-opening hoop, 7-outer bearing plate, 8-inner bearing plate. DETAILED DESCRIPTION
[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] like Figure 1-Figure 5As shown, this embodiment provides a mounting structure for a rotating shaft of a circuit breaker operating mechanism, comprising a rotating shaft 1, a frame, a left bracket 4, a right bracket 5, an outer bearing plate 7, and an inner bearing plate 8. The frame comprises a left cover plate 2, a right cover plate 3, a front cover plate (not shown in the figure to simplify the drawing), and a rear cover plate. The left cover plate 2 is integrally connected to the right cover plate 3 via the rear cover plate, and the left cover plate 2 and the right cover plate 3 are arranged opposite each other. The front cover plate is detachably mounted on the outside of the left cover plate 2 and the right cover plate 3. The left bracket 4 and the right bracket 5 are respectively mounted on the side of the left cover plate 2 and the right cover plate 3 adjacent to the front cover plate. The upper portion of each of the left bracket 4 and the right bracket 5 is provided with an open hoop 6 for conveniently clamping the rotating shaft 1. Two outer bearing plates 7 and two inner bearing plates 8 are mounted on the rotating shaft 1. The two outer bearing plates are rotatably connected to the left cover plate 2 and the right cover plate 3 of the frame through the first hinge, and the two inner bearing plates 8 are rotatably connected to the front cover plate of the frame through the second hinge.
[0025] In this embodiment, the left bracket 4 is mounted on the left cover plate 2 of the frame by welding, and the right bracket 5 is mounted on the right cover plate 3 of the frame by welding.
[0026] In this embodiment, the center angle occupied by the opening area of the opening hoop 6 is 150 to 170 degrees.
[0027] In this embodiment, the outer bearing plate 7 and the inner bearing plate 8 have the same structure.
[0028] In this embodiment, the outer bearing plate 7 and the inner bearing plate 8 include a stamped plate body, and the stamped plate body is provided with a first through hole cooperating with the rotating shaft 1 and a second through hole cooperating with the corresponding hinged member.
[0029] In this embodiment, the outer bearing plate 7 and the inner bearing plate 8 are made of q235 steel with self-lubricating properties.
[0030] In this embodiment, a swing piece is welded and fixedly mounted on the rotating shaft 1 .
[0031] A specific application of this embodiment is: this installation structure uses the open hoop 6 to provide basic positioning for the rotating shaft, uses two additional outer bearing plates 7 to connect with the frame left cover plate 2 and the frame right cover plate 3, and uses two additional inner bearing plates 8 to connect with the frame front cover plate; the outer bearing plates 7 and the inner bearing plates 8 are stamped from q235 steel plates, have a good clearance fit with the rotating shaft 1 of the operating mechanism, and have a certain self-lubricating effect; in this way, the operating mechanism frame is used to provide reliable movable support for the rotating shaft 1, thereby ensuring the stability of the rotating shaft 1 during movement.
[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A mounting structure for a rotating shaft of a circuit breaker operating mechanism, characterized in that: It includes a rotating shaft, a frame, a left bracket, a right bracket, an outer bearing plate and an inner bearing plate. The frame includes a left cover plate, a right cover plate, a front cover plate and a rear cover plate. The left cover plate is connected to the right cover plate via the rear cover plate. The front cover plate is detachably mounted on the outer sides of the left cover plate and the right cover plate. The left cover plate and the right cover plate are located on the side close to the front cover plate of the frame and are respectively mounted with a left bracket and a right bracket. The upper part of each of the left bracket and the right bracket is provided with an opening hoop for clamping the rotating shaft. Two outer bearing plates and two inner bearing plates are sleeved and mounted on the rotating shaft. The two outer bearing plates are rotatably connected to the left cover plate and the right cover plate of the frame via a first hinge, and the two inner bearing plates are rotatably connected to the front cover plate of the frame via a second hinge.
2. The installation structure of the rotating shaft of the circuit breaker operating mechanism according to claim 1, characterized in that: The left bracket is mounted on the left cover plate of the frame by welding, and the right bracket is mounted on the right cover plate of the frame by welding.
3. The installation structure of the rotating shaft of the circuit breaker operating mechanism according to claim 1, characterized in that: The center angle occupied by the opening area of the opening hoop is 150 to 170 degrees.
4. The installation structure of the rotating shaft of the circuit breaker operating mechanism according to claim 1, characterized in that: The outer bearing sheet and the inner bearing sheet have the same structure.
5. The installation structure of the rotating shaft of the circuit breaker operating mechanism according to claim 1, characterized in that: The outer bearing sheet and the inner bearing sheet include a stamped sheet body, and the stamped sheet body is provided with a first through hole matched with the rotating shaft and a second through hole matched with the corresponding hinged member.
6. The installation structure of the rotating shaft of the circuit breaker operating mechanism according to claim 1, characterized in that: The material of the outer bearing sheet and the inner bearing sheet is q235 steel with self-lubricating properties.