A breaker shaft closing retainer assembly for a gas insulated switchgear

Abstract

The application discloses a circuit breaker main shaft closing holder assembling device for gas insulated switchgear, characterized in that the device comprises a metal base, first and second metal vertical seats arranged on the two sides of the metal base, a vertical seat support rod connecting the upper ends of the first and second vertical seats, a first metal top rod arranged in the middle of the first vertical seat and provided with a first metal tip at the end, a second metal top rod arranged in the middle of the second vertical seat and provided with a second metal tip at the end facing the first metal tip, a threaded lengthening section penetrating through a threaded mounting hole of the second vertical seat at the end of the second metal top rod, and an operating handle arranged at the end of the threaded lengthening section, wherein the relative distance between the second metal tip and the first metal tip is controlled by controlling the advancing or retreating of the threaded lengthening section, the first pin of the closing holder is fixedly positioned between the first pin and the first roller of the closing holder by the first metal tip of the first metal top rod contacting the first roller, and the first pin of the closing holder is fixedly positioned between the first pin and the second roller of the closing holder by the second metal tip of the second metal top rod contacting the second roller. The application ensures the standardized operation of the positioning pin of the closing holder assembling device and the positioning and fixation of the two crank arms when the closing holder of the circuit breaker main shaft is installed on the main shaft assembling device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medium voltage gas insulated switchgear, in particular to a circuit breaker main shaft closing holding frame assembly device for gas insulated switchgear. BACKGROUND

[0002] The medium voltage gas insulated switchgear is widely used in 12-40.5kV power transmission and distribution system to accept and distribute electric energy, and to control, measure, protect and monitor the power system under normal operation and fault conditions. The main core modules of the gas insulated switchgear are circuit breakers and three-position disconnectors. In recent years, vacuum circuit breakers have developed rapidly, and the market for vacuum circuit breakers used in gas-filled cabinets has shown rapid growth, achieving outstanding results. The 12kV-40.5kV grade vacuum circuit breaker has a large market and a broad prospect.

[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 operation of the vacuum arc extinguishing part. The circuit breaker mechanism part is mainly composed of a main shaft module, a closing module, an opening module and a transmission module. The closing holding frame assembly used on the main shaft module connects the opening module, ensures that the opening module does not act when the circuit breaker is in the closing state, and the reliability of the assembly quality directly determines the product quality of the circuit breaker. SUMMARY

[0004] Therefore, in order to ensure the assembly quality reliability of the circuit breaker main shaft closing holding frame and effectively improve the production efficiency, reduce the rework problem caused by the closing holding frame after the completion of the circuit breaker assembly, a circuit breaker main shaft closing holding frame assembly device for gas insulated switchgear is invented. Through the present application, the assembly quality of the circuit breaker closing holding frame after assembly can be effectively ensured, which effectively supports the next step of circuit breaker assembly, ensures the installation precision, improves the work efficiency, and reduces the possible rework problem in the later period.

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

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

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

[0008] A metal base, a first metal stand and a second metal stand are arranged on both sides of the metal base;

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

[0010] A first metal ejector pin is arranged in the middle of the first stand, and a first metal ejector point is arranged at the end of the first metal ejector pin;

[0011] A second metal ejector pin is arranged in the middle of the second stand, and a second metal ejector point is arranged at the end of the second metal ejector pin towards the first metal ejector point;

[0012] The end of the second metal ejector pin passes through a threaded extension hole of the second stand, a handle is arranged at the end of the threaded extension, and the relative distance between the second metal ejector point and the first metal ejector point is controlled by controlling the forward or backward movement of the threaded extension;

[0013] The first pin of the closing retaining frame is limited between the first roller of the closing retaining frame and the first metal ejector point of the first metal ejector pin by the contact between the first metal ejector point of the first metal ejector pin and the first roller of the closing retaining frame;

[0014] The first pin of the closing retaining frame is limited between the first roller of the closing retaining frame and the first metal ejector point of the first metal ejector pin by the contact between the first metal ejector point of the first metal ejector pin and the first roller of the closing retaining frame.

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

[0016] In a preferred embodiment of the present application, a plurality of central symmetrical through holes are arranged on the metal base, and the through holes are fastened and fixed with the assembly line platform.

[0017] In a preferred embodiment of the present application, a stepped structure is arranged between the threaded extension and the second metal ejector pin.

[0018] In a preferred embodiment of the present application, the closing retaining frame comprises a first crank arm and a second crank arm, and the lower end of the first crank arm is connected with the first pin through the first roller;

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

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

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

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

[0023] The present application has the following beneficial effects:

[0024] Ensure that the circuit breaker main shaft closing holder is installed on the main shaft assembly, the positioning pin in the closing holder assembly is fixed with the two crank arms, and the traditional way of using a hammer to fix it several times in the original manual assembly process is replaced, which ensures the reliability and stability of the assembly process. Avoid assembling defective parts into the next assembly process, effectively guide the accurate operation of the installation work, improve the work efficiency, and avoid invalid rework. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Structure diagram of the present application Figure One .

[0026] Figure 2 Structure diagram of the present application Figure Two .

[0027] Figure 3 Structure diagram of the present application Figure One .

[0028] Figure 4 Structure diagram of the present application Figure Two . DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application is further described in detail below by means of drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the present application and do not limit the scope of the present application. In addition, the description of known structures and technologies is omitted in the following structure to avoid unnecessary confusion of the concept of the present application.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. It does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, "first" and "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0031] As shown in Figure 1 A circuit breaker main shaft closing holder assembly device 100 for a gas insulated switchgear, comprising a metal base 1, a metal first stand 2 and a metal second stand 3 are arranged on both sides of the metal base 1.

[0032] A plurality of central symmetric through holes 11 are arranged on the metal base 1, which are fastened and fixed with the assembly line platform (not shown in the figure).

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

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

[0035] The stand support rod 4 has a length consistent with the base 1 of metal material and a hexagonal shape, facilitating the use of a wrench tool, and has internal threads on both sides for fixed installation with the first stand 2 and the second stand 3.

[0036] A first metal top rod 5 is arranged in the middle of the first stand 2, and a first metal tip 51 is arranged at the end of the first metal top rod 5; the first metal top rod 5 has a hexagonal limit at the center position, a smooth cylinder on the right side, and a taper at the top of the cylinder, and the first metal tip 51 is arranged at the top of the cylinder.

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

[0038] An operating handle 63 is arranged at the end of the threaded 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 threaded extension section 62 through the operating handle 63.

[0039] The end of the threaded extension section 62 is a convex step 64 with a large diameter, the center of the convex step 64 has a through hole, and 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 handball 632 is arranged at the end of the cylindrical handle.

[0041] The key combination Figure 3 , 4 The first metal tip 51 of the first metal top rod 5 contacts the first roller 210 of the closing retaining frame 200 to control the fixed limit between the first pin 220 and the first roller 210 of the closing retaining frame 200.

[0042] The second metal tip 61 of the second metal top rod 6 contacts the second roller 230 of the closing retaining frame 200 to control the fixed limit between the first pin 220 and the second roller 230 of the closing retaining frame.

[0043] ​The closing holding frame 200 further comprises a first crank arm 201 and a second crank arm 202, the lower end of the first crank arm 201 is connected with the first pin 220 through the first roller 210, and the lower end of the second crank arm 202 is connected with the first pin 220 through the second roller 230.

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

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

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

[0047] After the closing holding frame assembly device for the circuit breaker main shaft is assembled, it can be fixed on the workshop installation station through the four through holes in the center of the metal base, the center of the first metal top rod on the left side and the center of the second metal top rod on the right side are kept consistent, and the position between the two is the installation operation area of the closing holding frame for the circuit breaker main shaft. After the closing holding frame is preliminarily assembled, it can be placed in the operation area of the device, so that the centers of the pins on both sides are aligned with the protruding positions of the metal top centers on both sides, and the metal manual operating rod is used for rotation to preliminarily position it. Subsequently, the final shaping of the closing holding frame is carried out according to the number of rotation required by the process flow requirements, so that the pins on both sides are fastened with the rollers on the outside, and the installation accuracy of the closing holding frame is ensured.

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

[0049] Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker main shaft closing retainer assembly device for gas insulated switchgear, characterized in that: include: A base made of metal, with a first stand made of metal and a second stand made of metal respectively provided on both sides of the base; The upper ends of the first stand and the second stand are connected by a stand support rod; A first metal push rod is provided in the middle of the first stand, and a first metal tip is provided at the end of the first metal push rod; A second metal push rod is provided in the middle of the second stand, and a second metal tip is provided at the end of the second metal push rod facing the first metal tip; The end of the second metal push 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 forward or backward movement 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 first pin of the closing retainer and the second roller are controlled to be fixed and limited by the second metal tip of the second metal push rod contacting the second roller of the closing retainer.

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

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

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