Circuit breaker main shaft closing retainer assembling device for gas insulated switchgear

Abstract

The invention discloses a circuit breaker main shaft closing retainer assembling device for gas insulated switchgear, which is characterized by comprising a metal base, a first vertical seat and a second vertical seat which are respectively arranged on two sides of the metal base, and a second vertical seat which is respectively arranged on two sides of the first vertical seat and the second vertical seat, the upper ends of the first vertical seat and the second vertical seat are connected through a vertical seat supporting rod; a first metal ejector rod is arranged in the middle of the first vertical seat, and a first metal tip is arranged at the tail end of the first metal ejector rod; a second metal ejector rod is arranged in the middle of the second vertical seat, and a second metal tip is arranged at the tail end, facing the first metal tip, of the second metal ejector rod; the tail end of the second metal ejector rod penetrates through a threaded mounting hole of the second vertical seat through a threaded lengthening section, an operating handle is arranged at the tail end of the threaded lengthening section, and the relative distance between the second metal tip and the first metal tip is controlled by controlling the threaded lengthening section to advance or retreat; a first metal tip of the first metal ejector rod is in contact with a first roller of the switching-on retainer to control shaping and limiting between a first pin of the switching-on retainer and the first roller; and the second metal tip of the second metal ejector rod is contacted with the second roller of the closing retainer to control the shaping and limiting between the first pin of the closing retainer and the second roller. According to the invention, when the circuit breaker main shaft closing retainer is installed on the main shaft assembly, the standardized operation of positioning and fixing the positioning pin and the two crank arms in the closing retainer assembly is ensured.

Description

Technical Field

[0001] The invention relates to the field of medium-voltage gas-insulated switchgear, and in particular to an assembly device for a circuit breaker main shaft closing retainer for a gas-insulated switchgear. Background Art

[0002] Medium voltage gas insulated switchgear is widely used in 12-40.5kV power transmission and transformation systems to receive and distribute electric energy, and to control, measure, protect and monitor the normal operation and fault conditions of the power system. The main core modules of gas insulated switchgear are circuit breakers and three-position disconnectors. In recent years, vacuum circuit breakers have developed rapidly, among which the market for vacuum circuit breakers used in gas-filled cabinets has shown a rapid growth momentum and achieved remarkable results. 12kV-40.5kV vacuum circuit breakers are large in quantity and wide in scope, with broad prospects.

[0003] The vacuum circuit breaker module is divided into a circuit breaker mechanism part and a vacuum arc extinguishing part, wherein the circuit breaker mechanism drives the closing and opening operations of the vacuum arc extinguishing part. The circuit breaker mechanism part is mainly composed of a spindle module, a closing module, an opening module, and a transmission module. The patent of this invention is used in the assembly of the closing retainer on the spindle module. The closing retainer is connected to the opening module to ensure that the opening module does not operate when the circuit breaker is in the closed state. The reliability of its assembly quality directly determines the product quality of the circuit breaker. Summary of the invention

[0004] Therefore, in order to ensure the reliability of the assembly quality of the circuit breaker main shaft closing cage, effectively improve production efficiency, and reduce the rework problem caused by the closing cage after the circuit breaker is assembled, a circuit breaker main shaft closing cage assembly device for gas insulated switchgear is invented. Through the present invention, the assembly quality of the circuit breaker closing cage after assembly can be effectively ensured, and effective support can be provided for the next step of circuit breaker assembly, so as to ensure installation accuracy, improve work efficiency, and reduce the rework problem that may occur in the later stage.

[0005] In order to overcome the above-mentioned defects of the prior art, an object of the present invention is to provide a circuit breaker main shaft closing retainer assembly device for a gas insulated switchgear.

[0006] In order to achieve the purpose of the present invention, the technical solution adopted is:

[0007] A circuit breaker main shaft closing retainer assembly device for a gas insulated switchgear, comprising:

[0008] A base made of metal material, with a first stand made of metal material and a second stand made of metal material respectively arranged on both sides of the base made of metal material;

[0009] The upper ends of the first stand and the second stand are connected via a stand support rod;

[0010] A first metal top rod is arranged in the middle of the first stand, and a first metal top is arranged at the end of the first metal top rod;

[0011] A second metal top rod is arranged in the middle of the second stand, and a second metal top is arranged at the end of the second metal top rod facing the first metal top;

[0012] The end of the second metal top rod passes through the threaded mounting hole of the second stand via a threaded extension section, and an operating handle is provided at the end of the threaded extension section, and the relative distance between the second metal top and the first metal top is controlled by controlling the advancement or retreat of the threaded extension section;

[0013] The first metal tip of the first metal push rod contacts the first roller of the closing retainer to control the first pin of the closing retainer and the first roller to be fixed and limited;

[0014] The second metal tip of the second metal push rod contacts the second roller of the closing retainer to control the first pin of the closing retainer and the second roller to be fixed and limited.

[0015] In a preferred embodiment of the present invention, two ends of the seat support rod respectively pass through the seat support rod mounting hole of the first seat and the seat support rod mounting hole of the second seat and are fastened by fasteners.

[0016] In a preferred embodiment of the present invention, the metal base is provided with a plurality of centrally symmetrical through holes, through which the metal base is fastened to the assembly line platform.

[0017] In a preferred embodiment of the present invention, a step structure is provided between the thread extension section and the second metal push rod.

[0018] In a preferred embodiment of the present invention, the closing retainer comprises a first crank arm and a second crank arm, and the lower end of the first crank arm is connected to the first pin through the first roller;

[0019] The lower end of the second crank arm is connected to the first pin via the second roller;

[0020] A second pin with a steel sleeve is provided between the upper end of the first crank arm and the upper end of the second crank arm;

[0021] Both ends of the second pin are fastened by fasteners.

[0022] In a preferred embodiment of the present invention, the operating handle is a cylindrical handle, and a plastic handball is provided at the end of the cylindrical handle.

[0023] The beneficial effects of the present invention are:

[0024] It ensures the standardized operation of positioning and fixing the positioning pin and two crank arms in the assembly of the closing cage when the circuit breaker main shaft closing cage is installed on the main shaft assembly, and replaces the traditional method of using a hammer to knock and fix multiple times during the original manual assembly process, ensuring the reliability and stability of the assembly process. It prevents the assembly with problems from flowing into the next assembly process, effectively guides the installation work to be accurate, improves work efficiency, and avoids ineffective rework. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0026] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0027] Figure 3 The structure of the retainer of the present invention is schematically shown in FIG. Figure 1 .

[0028] Figure 4 The structure of the retainer of the present invention is schematically shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following structure, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1 A circuit breaker main shaft closing retainer assembly device 100 for a gas insulated switchgear as shown in FIG. 2 comprises a base 1 made of metal material, and a first stand 2 made of metal material and a second stand 3 made of metal material are respectively arranged on both sides of the base 1 made of metal material.

[0032] The metal base 1 is provided with a plurality of centrally symmetrical through holes 11 , and is fastened to the assembly line platform (not shown in the figure) through the through holes 11 .

[0033] The upper ends of the first stand 2 and the second stand 3 are connected via a stand support rod 4 .

[0034] The two ends of the seat support rod 4 pass through the seat support rod mounting hole of the first seat 2 and the seat support rod mounting hole of the second seat 3 respectively and are fastened by fasteners.

[0035] The length of the stand support rod 4 is consistent with that of the metal base 1 , and the shape is hexagonal, which is convenient for using wrench tools. Internal threads are opened on both sides for fixed installation with the first stand 2 and the second stand 3 .

[0036] A first metal push rod 5 is arranged in the middle of the first seat 2, and a first metal tip 51 is arranged at the end of the first metal push rod 5; there is a hexagonal limiter at the center of the first metal push rod 5, the right side is a smooth cylinder, the top of the cylinder is conical, and the first metal tip 51 is arranged on the top of the cylinder.

[0037] A second metal push rod 6 is arranged in the middle of the second stand 3, and a second metal tip 61 is arranged at the end of the second metal push rod 6 facing the first metal tip 51. The end of the second metal push rod 6 passes through the threaded mounting hole of the second stand 3 through a threaded extension section 62, and a step structure 621 is arranged between the threaded extension section 62 and the second metal push rod 6.

[0038] An operating handle 63 is provided at the end of the thread extension section 62, and the relative distance between the second metal tip 61 and the first metal tip 51 is controlled by controlling the forward or backward movement of the thread extension section 62 through the operating handle 63;

[0039] The end of the thread extension section 62 is a raised step 64 with a larger diameter. The center of the raised step 64 has a through hole. The diameter of the through hole is slightly larger than the outer diameter of the handle rod 631 of the operating handle 63, so that the metal handle rod 631 can pass through easily.

[0040] The handle rod 631 is a cylindrical handle, and a plastic hand ball 632 is provided at the end of the cylindrical handle.

[0041] Focus on combination Figure 3 , 4 The present invention controls the positioning between the first pin 220 of the closing retainer 200 and the first roller 210 by contacting the first metal tip 51 of the first metal push rod 5 with the first roller 210 of the closing retainer 200.

[0042] The second metal tip 61 of the second metal push rod 6 contacts the second roller 230 of the closing retainer 200 to control the first pin 220 of the closing retainer and the second roller 230 to be fixed and limited.

[0043] The closing retainer 200 further includes a first crank arm 201 and a second crank arm 202 . The lower end of the first crank arm 201 is connected to the first pin 220 via a first roller 210 , and the lower end of the second crank arm 202 is connected to the first pin 220 via a second roller 230 .

[0044] A second pin 240 with a steel sleeve 241 is provided between the upper ends of the first crank arm 201 and the second crank arm 202 , and both ends of the second pin 240 are fastened by fasteners.

[0045] The fastener 300 of the present invention includes but is not limited to metal fasteners (fastening screws, flat washers, spring washers) for fastening the device.

[0046] Because of the above structure, the working principle of the present invention is:

[0047] After the assembly device of the circuit breaker main shaft closing retainer is assembled, it can be fixed in the installation station in the workshop through the four through holes in the center of the metal base. The centers of the first metal push rod on the left and the second metal push rod on the right are consistent. The position between the two is the installation operation area of ​​the circuit breaker main shaft closing retainer. After the initial assembly, the closing retainer can be placed in the operation area of ​​this device, so that the centers of the pins on both sides are aligned with the raised positions of the metal tips on both sides, and the metal manual operating lever is used to rotate it for initial positioning. Subsequently, the closing retainer is finally finalized according to the number of rotations specified in the process flow requirements, so that the pins on both sides are tightened with the rollers on the outside to ensure the installation accuracy of the closing retainer.

[0048] The basic principles and main features of the invention and the advantages of the invention are shown and described above.

[0049] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A circuit breaker main shaft closing retainer assembly device for a gas insulated switchgear, characterized in that: include: A base made of metal material, with a first stand made of metal material and a second stand made of metal material respectively arranged on both sides of the base made of metal material; The upper ends of the first stand and the second stand are connected via a stand support rod; A first metal top rod is arranged in the middle of the first stand, and a first metal top is arranged at the end of the first metal top rod; A second metal top rod is arranged in the middle of the second stand, and a second metal top is arranged at the end of the second metal top rod facing the first metal top; The end of the second metal top rod passes through the threaded mounting hole of the second stand via a threaded extension section, and an operating handle is provided at the end of the threaded extension section, and the relative distance between the second metal top and the first metal top is controlled by controlling the advancement or retreat of the threaded extension section; The first metal tip of the first metal push rod contacts the first roller of the closing retainer to control the first pin of the closing retainer and the first roller to be fixed and limited; The second metal tip of the second metal push rod contacts the second roller of the closing retainer to control the first pin of the closing retainer and the second roller to be fixed and limited.

2. A circuit breaker main shaft closing retainer assembly device for gas insulated switchgear according to claim 1, characterized in that: The two ends of the stand support rod respectively pass through the stand support rod mounting hole of the first stand and the stand support rod mounting hole of the second stand and are fastened by fasteners.

3. The assembly device for the main shaft closing retainer of a circuit breaker for a gas insulated switchgear according to claim 1, characterized in that: The metal base is provided with a plurality of centrally symmetrical through holes, and is fastened to the assembly line platform through the through holes.

4. The assembly device for a main shaft closing retainer of a circuit breaker for a gas insulated switchgear according to claim 1, characterized in that: A step structure is provided between the thread extension section and the second metal push rod.

5. The assembly device for the main shaft closing retainer of a circuit breaker for a gas-insulated switchgear according to claim 1, characterized in that: The closing retainer comprises a first crank arm and a second crank arm, and the lower end of the first crank arm is connected to the first pin through the first roller; The lower end of the second crank arm is connected to the first pin via the second roller; A second pin with a steel sleeve is provided between the upper end of the first crank arm and the upper end of the second crank arm; Both ends of the second pin are fastened by fasteners.

6. A circuit breaker main shaft closing retainer assembly device for gas insulated switchgear according to claim 1, characterized in that: The operating handle is a cylindrical handle, and a plastic handball is arranged at the end of the cylindrical handle.

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