An assembly tooling for a vacuum interrupter and its assembly method

Abstract

This invention patent belongs to the technical field of electrical equipment, and particularly relates to an assembly tooling for a vacuum interrupter and its assembly method, which includes a static end bracket, side plates, and a moving end bracket. The two ends of the side plates are respectively connected to the static end bracket and the moving end bracket. The assembly tooling further includes a conductive clip fixing device and a connecting rod fixing device. The conductive clip fixing device is arranged on the moving end bracket and has a clamping groove. The connecting rod fixing device includes a positioning frame and a positioning rod. The positioning frame is arranged on the moving end bracket and is centrosymmetric about the axis where the moving end is located. The positioning frame is also provided with positioning holes. When the connecting rod is inserted into the moving end, the positioning rod passes through the positioning holes and the milled flat part through holes simultaneously. This invention enables the cranked arm, flexible connection, and connecting rod of the interrupter to be in the correct positions during assembly, providing a guarantee for subsequent installation. This invention has a simple structure, is easy to operate, and improves work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment, and in particular relates to an assembly tool for a vacuum arc extinguishing chamber and an assembly method thereof. Background Art

[0002] The vacuum interrupter in the prior art is as follows: Figure 1 As shown, the moving end of the vacuum interrupter 1 passes through the hole on the conductive clamp 2 and is fixedly connected to the conductive clamp 2. One end of a flexible connection 3 is fixedly connected with a bolt on the conductive clamp 2. The flexible connection 3 is a cylinder. The connecting rod 4 passes through the other end of the flexible connection 3 and is bolted to the moving end. A milled flat portion is provided on the connecting rod 4, and a through hole is provided on the milled flat portion. The crank arm 5 is pin-connected to the connecting rod 4 through the through hole.

[0003] In the existing assembly tooling for vacuum arc chambers, the static end of the arc chamber 1 needs to be inserted into the groove of the insulating box for fixation, which means that the positions of the crank arm 5, the flexible connection 3, and the connecting rod 4 need to be very accurate during installation. Specifically, the crank arm 5 needs to remain vertical relative to the horizontal plane; the milled flat portion of the connecting rod 4 needs to remain vertical to the horizontal plane, and the connecting rod 4 should be vertically connected to the moving end; the straight busbar of the cylindrical surface where the flexible connection 3 is located needs to always be parallel to the horizontal plane, so the position of the conductive clip 2 to which the flexible connection 3 is fixed should also always remain fixed. However, during the manual installation process, since the conductive clip 2 and the connecting rod 4 are not fixed, they will be deflected by force when the nut is turned, causing the crank arm 5, the flexible connection 3, and the connecting rod 4 to be unable to remain in the correct position. Summary of the invention

[0004] In order to solve this problem, the present application proposes a new assembly tool for a vacuum arc chamber and an assembly method thereof. By setting a conductive clip fixing structure and a connecting rod fixing structure, the conductive clip, flexible connection and connecting rod can be kept in the correct position even if the nut is turned.

[0005] The specific technical solutions of the present invention are as follows:

[0006] An assembly tool for a vacuum arc extinguishing chamber, comprising a static end bracket, a side plate and a dynamic end bracket, wherein the two ends of the side plate are respectively connected to the static end bracket and the dynamic end bracket, the assembly tool also comprises a conductive clip fixing device and a connecting rod fixing device, wherein the conductive clip fixing device is arranged on the dynamic end bracket, and the conductive clip fixing device has a card slot; the connecting rod fixing device comprises a positioning frame and a positioning rod, wherein the positioning frame is arranged on the dynamic end bracket, and the positioning frame is symmetrical about the axis center of the dynamic end, and a positioning hole is also arranged on the positioning frame, and when the connecting rod is connected to the dynamic end, the positioning rod passes through the positioning hole and the through hole of the milled flat portion at the same time.

[0007] The conductive clip fixing device comprises at least two clamping blocks, which are arranged on the movable end bracket, and slots are formed between the clamping blocks, and the clamping surfaces of the clamping blocks match the shape of the conductive clip.

[0008] Wherein, a limiting member is also arranged on the clamping block, and a clamping block sliding groove is arranged on the movable end bracket, and the limiting member can slide back and forth in the clamping block sliding groove.

[0009] Wherein, a clamping block fixing piece is also arranged on the clamping block.

[0010] Wherein, the clamp block fixing piece is a bolt, a bolt hole is provided on the clamp block, and the bolt extends through the bolt hole and contacts the movable end bracket.

[0011] Wherein, the positioning frame of the connecting rod fixing device is arranged on the clamping block.

[0012] Wherein, the positioning rod is orthogonal to the axis where the moving end is located.

[0013] Wherein, the side plate is provided with an arc extinguishing chamber support plate, and the arc extinguishing chamber support plate has a yielding structure, and the yielding structure matches the shape of the arc extinguishing chamber.

[0014] Among them, the static end bracket is provided with an arc extinguishing chamber rear support structure, the arc extinguishing chamber rear support structure matches the shape of the conductive plate at the rear side of the arc extinguishing chamber, and the moving end bracket is provided with a moving end slot.

[0015] A method for assembling a vacuum interrupter comprises the following steps:

[0016] (1) Connect the static end and dynamic end of the vacuum interrupter to the static end bracket and dynamic end bracket respectively;

[0017] (2) clamping the conductive clip in the clamping slot of the conductive clip fixing device, and tightening the bolts to fix the conductive clip to the moving end of the arc extinguishing chamber;

[0018] (3) Pre-connect the connecting rod to the moving end, and adjust the position of the milled flat part of the connecting rod so that the positioning rod can simultaneously pass through the positioning holes of the positioning frames on both sides and the through holes on the milled flat part;

[0019] (4) Tighten the bolts on the connecting rod to fix it to the moving end, then remove the arc extinguishing chamber to complete the assembly of the vacuum arc extinguishing chamber.

[0020] Beneficial Effects

[0021] The invention effectively ensures that the crank arm, the flexible connection and the connecting rod can be in the correct position when the vacuum interrupter is installed, providing a guarantee for the subsequent installation of other parts. The invention has a simple structure, is easy to operate, saves time and labor, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram when the assembly of the vacuum interrupter is completed

[0023] Figure 2 Schematic diagram of the present invention

[0024] Figure 3 Schematic diagram when the vacuum interrupter is arranged on the present invention

[0025] Figure 4 Schematic diagram of the conductive clip fixing device and the moving end bracket of the present invention

[0026] Among them, 1 is the vacuum interrupter, 2 is the conductive clip, 3 is the flexible connection, 4 is the connecting rod, 5 is the toggle arm, 11 is the static end bracket, 12 is the rear support structure of the interrupter, 21 is the side plate, 22 is the interrupter support plate, 31 is the moving end bracket, 311 is the moving end slot, 312 is the clip chute, 32 is the clip, 321 is the limiting part, and 41 is the positioning rod. Specific implementation manner

[0027] For the vacuum interrupter of the present invention, as Figure 1 shown, the moving end of the vacuum interrupter 1 passes through the hole on the conductive clip 2 and is fixedly connected to the conductive clip 2. One end of the flexible connection 3 is fixedly connected to the conductive clip 2 by bolts. The flexible connection 3 is a cylindrical surface. The connecting rod 4 passes through the other end of the flexible connection 3 and is bolted to the moving end. A flattened part is provided on the connecting rod 4, and a through hole is provided on the flattened part. Through the through hole, the toggle arm 5 is pin-connected to the connecting rod 4. For the tooling of the present invention, as Figure 2 shown, it includes a static end bracket 11, a side plate 21, and a moving end bracket 31. Both ends of the side plate 21 are respectively connected to the static end bracket 11 and the moving end bracket 31. During use, the static end of the interrupter 1 is fixed on the static end bracket 11, and its moving end is fixed on the moving end bracket 31.

[0028] The present invention further includes a conductive clip fixing device and a connecting rod fixing device. The conductive clip fixing device is arranged on the moving end bracket 31. The conductive clip fixing device has a card slot. When the moving end of the interrupter is fixed on the moving end bracket 31, the conductive clip 2 can be stuck in the card slot, and at this time, the straight bus of the flexible connection 3 fixed to the conductive clip 2 is parallel to the horizontal plane. The connecting rod fixing device includes a positioning frame and a positioning rod 41. The positioning frame is arranged on the moving end bracket 31, and the positioning frame is centrosymmetric about the axis where the moving end is located. A positioning hole is also provided on the positioning frame. When the connecting rod 4 is connected to the moving end, the through hole on its flattened part and the positioning holes on the two side positioning frames are on the same straight line. Therefore, the positioning rod 41 passes through the positioning hole and the through hole on the flattened part at the same time.

[0029] As Figure 3As shown in the figure, when using the tooling of the present invention, the static end and the moving end of the arc extinguishing chamber are respectively fixed on the static end bracket 11 and the moving end bracket 31. The flexible connection 3 is pre-fixed to the conductive clip 2. The conductive clip 2 passes through the moving end of the arc extinguishing chamber 1 and is then stuck in the card slot of the conductive clip fixing device. At this time, the position of the conductive clip 2 is fixed, and the straight busbar of the flexible connection 3 is always parallel to the horizontal plane. At this time, tighten the nut on the conductive clip 2, and the conductive clip 2 will not deflect due to external force, thus ensuring the accurate position of the flexible connection 3. Pass the connecting rod 4 through the flexible connection 3 and connect it to the moving end. Adjust the position of the connecting rod 4 so that the positioning rod 41 can sequentially pass through the positioning holes on one side of the positioning frame, the through holes at the milled flat part, and the positioning holes on the other side of the positioning frame. Preferably, the positioning rod 41 is orthogonal to the connecting rod 4, resulting in the position of the connecting rod 4 being fixed, thereby ensuring that the milled flat part of the connecting rod 4 will not deflect when tightening the nut on the connecting rod 4. After the connecting rod 4 is assembled, pull out the positioning rod 41 from the positioning holes and through holes, remove the conductive clip from the card slot, and then the installed arc extinguishing chamber can be taken out.

[0030] Specifically, as Figure 2 shown, the conductive clip fixing device includes at least two clamping blocks 32. The clamping blocks 32 are arranged on the moving end bracket 31. The clamping surfaces of the clamping blocks 32 match the outer shape of the conductive clip 2, and a card slot is formed between the clamping blocks.

[0031] Specifically, as Figure 4 shown, a limiting member 321 is further arranged on the clamping block 32, and a clamping block sliding groove 312 is arranged on the moving end bracket 31. The limiting member 321 can slide back and forth in the clamping block sliding groove 312. With such a setting, the clamping block 32 can be freely replaced, so as to form different card slots by using different clamping blocks 32 to clamp conductive clips 2 of different sizes and shapes. This design is also beneficial to separating the clamping block 32 after assembly, which can more conveniently take out the conductive clip 2.

[0032] Specifically, as Figure 3 shown, a clamping block fixing member 322 is further arranged on the clamping block 32. After the clamping block 32 clamps the conductive clip 2, the clamping block fixing member 322 can lock the position of the clamping block 32 on the moving end bracket 31, further ensuring the stable position of the conductive clip 2.

[0033] Specifically, as Figure 3 shown, the clamping block fixing member 322 is a bolt. A bolt hole is arranged on the clamping block 32. The bolt passes through the bolt hole and extends out to abut against the moving end bracket 31, and the clamping block 32 is fixed by relying on friction.

[0034] Specifically, as Figure 4As shown, the positioning frame of the connecting rod fixing device is arranged on the clamping block 32. Such arrangement can reduce the number of parts on the movable end bracket 31, reduce the complexity of the structure, and reduce the number of customized parts.

[0035] Specifically, when the connecting rod 4 is pre-connected with the moving end, the positioning rod 41 is orthogonal to the axis of the moving end.

[0036] Specifically, the side plate 21 is provided with an arc extinguishing chamber support plate 22 for providing auxiliary support and fixation for the arc extinguishing chamber. Preferably, the arc extinguishing chamber support plate 22 has a yield structure that matches the shape of the arc extinguishing chamber.

[0037] Specifically, the static end bracket 11 is provided with an arc extinguishing chamber rear support structure 12, and the arc extinguishing chamber rear support structure 12 matches with the conductive plate at the rear side of the arc extinguishing chamber, thereby fixing the static end of the arc extinguishing chamber.

[0038] Specifically, a moving end slot 311 is provided on the moving end bracket 31 , and the moving end can be disposed in the moving end slot 311 .

[0039] The assembly method of the vacuum interrupter of the present application comprises the following steps:

[0040] The first step is to connect the static end and the dynamic end of the vacuum interrupter to the static end bracket 11 and the dynamic end bracket 31 respectively;

[0041] The second step is to clamp the conductive clip in the clamping groove of the conductive clip fixing device, and tighten the bolts to fix the conductive clip to the moving end of the arc extinguishing chamber;

[0042] The third step is to pre-connect the connecting rod 4 with the moving end, and adjust the position of the milled flat portion of the connecting rod 4 so that the positioning rod 41 can simultaneously pass through the positioning holes of the positioning frames on both sides and the through holes on the milled flat portion;

[0043] The fourth step is to tighten the bolts on the connecting rod 4 to fix it to the moving end, and then take the arc extinguishing chamber out of the tooling described in the present application, thereby completing the assembly of the vacuum arc extinguishing chamber.

[0044] Preferably, before the third step, the flexible connection 3 is connected to the conductive clip.

[0045] Preferably, when the conductive clip fixing device of the tooling includes a clamping block 32 , in the second step, the clamping block 32 is first separated, the conductive clip is pre-installed on the moving end, and then the conductive clip is clamped by the clamping block 32 .

[0046] Preferably, when a clamping block fixing part 322 is provided on the clamping block 32, in the second step, when the clamping block 32 has clamped the conductive clip, the clamping block fixing part 322 is used to fix the position of the clamping block 32, thereby ensuring that the conductive clip does not move.

Claims

1. An assembly tool for a vacuum interrupter, comprising a static end bracket (11), a side plate (21) and a dynamic end bracket (31), wherein two ends of the side plate (21) are respectively connected to the static end bracket (11) and the dynamic end bracket (31), It is characterized in that It also includes a conductive clip fixing device and a connecting rod fixing device, wherein the conductive clip fixing device is arranged on the movable end bracket (31), and the conductive clip fixing device has a card slot; the connecting rod fixing device includes a positioning frame and a positioning rod (41), wherein the positioning frame is arranged on the movable end bracket (31), and the positioning frame is symmetrical about the axis of the movable end, and a positioning hole is also arranged on the positioning frame, and when the connecting rod (4) is connected to the movable end, the positioning rod (41) passes through the positioning hole and the through hole of the milled flat portion at the same time; The conductive clip fixing device comprises at least two clamping blocks (32), the clamping blocks (32) are arranged on the movable end bracket (31), a clamping groove is formed between the clamping blocks, and the clamping surface of the clamping block (32) matches the shape of the conductive clip.

2. The assembly tool according to claim 1, It is characterized in that The clamping block (32) is also provided with a limiting member (321), and the movable end bracket (31) is provided with a clamping block sliding groove (312), and the limiting member (321) can slide back and forth in the clamping block sliding groove (312).

3. The assembly tool according to claim 1, It is characterized in that The clamping block (32) is also provided with a clamping block fixing piece (322).

4. The assembly tool according to claim 3, It is characterized in that The clamp block fixing member (322) is a bolt. The clamp block (32) is provided with a bolt hole. The bolt extends through the bolt hole and contacts the movable end bracket (31).

5. The assembly tool according to claim 1, It is characterized in that The positioning frame of the connecting rod fixing device is arranged on the clamping block (32).

6. The assembly tool according to claim 1, It is characterized in that The positioning rod (41) is orthogonal to the axis of the moving end.

7. The assembly tool according to claim 1, It is characterized in that An arc extinguishing chamber support plate (22) is arranged on the side plate (21), and a yielding structure is provided on the arc extinguishing chamber support plate (22), and the yielding structure matches the outer shape of the arc extinguishing chamber.

8. The assembly tool according to claim 1, It is characterized in that The static end bracket (11) is provided with an arc extinguishing chamber rear support structure (12), the arc extinguishing chamber rear support structure (12) matches the shape of the conductive plate at the rear side of the arc extinguishing chamber, and the dynamic end bracket (31) is provided with a dynamic end slot (311).

9. An assembling method of the assembly tool for the vacuum interrupter according to claim 1, It is characterized in that The following steps are included: (1) Connecting the static end and the dynamic end of the vacuum interrupter to the static end bracket (11) and the dynamic end bracket (31) respectively; (2) Insert the conductive clip into the slot of the conductive clip fixing device, and tighten the bolts to fix the conductive clip to the moving end of the arc extinguishing chamber; (3) Pre-connect the connecting rod (4) to the moving end, and adjust the position of the flattened part of the connecting rod (4) so that the positioning rod (41) can penetrate through the positioning holes of the two-sided positioning brackets and the through holes on the flattened part at the same time; (4) Tighten the bolts on the connecting rod (4) to fix it to the moving end, and then take out the arc extinguishing chamber to complete the assembly of the vacuum arc extinguishing chamber.

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