Vacuum arc-extinguishing chamber turnover device

Abstract

The utility model provides a vacuum arc-extinguishing chamber turnover device, and belongs to the field of hanging or supporting devices of plated products. The vacuum arc-extinguishing chamber turnover device comprises a door frame and a lifting mechanism arranged on the door frame, a lifting output end of the lifting mechanism is provided with a lifting frame, the lifting frame comprises a main frame body and two arm bodies arranged on the main frame body, and the tail ends of the two arm bodies are rotationally provided with fixing structures used for being fixed to a vacuum arc-extinguishing chamber. The main frame body is provided with a guide structure, the main frame body is provided with an opening and closing control mechanism used for driving the two arm bodies to be close to each other or away from each other, the fixing structure is a holding claw, and the holding claw is provided with an arc-shaped attaching part used for being matched with the vacuum arc-extinguishing chamber in shape. According to the utility model, the two arm bodies can move oppositely, so that the holding claws on the arm bodies are buckled from the two sides of the vacuum arc-extinguishing chamber and hold the vacuum arc-extinguishing chamber, and the operation of assembling the vacuum arc-extinguishing chamber on the vacuum arc-extinguishing chamber turnover device is simplified.

Description

Technical Field

[0001] This utility model belongs to the field of suspension or support devices for plated products, and in particular relates to a vacuum interrupter chamber flipping device. Background Technology

[0002] Vacuum interrupters need to be flipped during testing and silver plating. The flipping operation is usually carried out using a crane and with the assistance of manual labor. For high-voltage vacuum interrupters that are large in size and heavy in weight, the flipping operation is more difficult, not only time-consuming and labor-intensive, but also more prone to damage from bumps and knocks.

[0003] A Chinese utility model patent with authorization announcement number CN214937919U discloses a tooling fixture for silver plating a vacuum interrupter. This tooling fixture includes a lifting frame and a fixing frame. The lifting frame is inverted U-shaped, and locking elements are rotatably mounted on both sides of its bottom. The fixing frame is located inside the lifting frame, and the locking elements are connected to the fixing frame via threads. The fixing frame has two separate parts that can be snapped together and fixed to the vacuum interrupter from both sides. Each separate part includes arc-shaped end plates at both ends of the vacuum interrupter, and a support plate and a support rod located between the two arc-shaped end plates. A locking plate is provided on the support plate, and the locking plate has threaded holes for threaded engagement with the locking elements. The locking plate also has positioning holes. The lifting frame has spring pins for engaging with the positioning holes. During use, the fixing frame can be rotated around the locking elements. After rotating 180°, the spring pins are inserted into the corresponding positioning holes to maintain the stability of the fixing frame and the lifting frame.

[0004] When in use, the hoisting frame in the above-mentioned tooling fixture is set on the gantry with traveling wheels through the lifting mechanism. When the end of the vacuum interrupter needs to be silvered, the fixed frame (i.e., the fixed structure) is first installed on the vacuum interrupter, then the hoisting frame (i.e. the lifting frame) is lowered to connect the hoisting frame with the fixed frame, and finally the hoisting frame is raised to perform silvering and flipping operations on the vacuum interrupter. Firstly, the operation of this fixture is rather cumbersome. Transferring the vacuum interrupter to this fixture requires first assembling the fixing frame onto the vacuum interrupter, and then assembling the fixing frame and the lifting frame, resulting in low operational efficiency. Secondly, during the rotation of the vacuum interrupter, the operator needs to manually push the vacuum interrupter to rotate it, which is physically demanding. Furthermore, aligning the positioning hole with the spring pin after rotation is also difficult. Finally, this fixture can only be used for silver plating of the vacuum interrupter. Because the upper end of the vacuum interrupter is obstructed by the lifting frame, it is difficult to perform testing operations directly on this fixture. If the vacuum interrupter needs to be rotated during testing, it must be rotated on this fixture before being transferred to another fixture for subsequent testing, further reducing operational efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum interrupter flipping device to solve the technical problems of cumbersome operation steps and low efficiency in the process of flipping vacuum interrupters using tooling fixtures in the prior art.

[0006] To achieve the above objectives, the technical solution of the vacuum interrupter flipping device provided by this utility model is as follows:

[0007] A vacuum interrupter tilting device includes a gantry and a lifting mechanism mounted on the gantry. The lifting mechanism has a lifting frame at its lifting output end. The lifting frame includes a main frame and two arms mounted on the main frame. The ends of the two arms are rotatably equipped with fixing structures for fixing to the vacuum interrupter. The main frame has a guide structure for guiding the two arms. The two arms are spaced apart along their moving direction and the moving direction of the two arms is horizontal. The main frame has an opening and closing control mechanism for driving the two arms to move closer or further apart. The fixing structure is a gripper, and the gripper has an arc-shaped fitting part adapted to the shape of the vacuum interrupter.

[0008] As a further improvement, the arc-shaped fitting part is provided with a receiving groove for accommodating the radially protruding part in the middle of the vacuum interrupter.

[0009] As a further improvement, the gripper includes a connecting plate and end plates located at both ends of the connecting plate. The two end plates on the same gripper are parallel to each other, and the arc-shaped fitting part is located on one side of the end plate. The area between the two end plates forms a receiving groove.

[0010] As a further improvement, a locking structure is provided between the two grippers to lock the two grippers together after they are engaged on the vacuum interrupter.

[0011] As a further improvement, the locking mechanism is a latch.

[0012] As a further improvement, the two arms are located on the horizontal side of the main frame, and both arms are cantilevered.

[0013] As a further improvement, one of the arms is provided with a rotation control structure for driving the gripper on the arm to rotate.

[0014] As a further improvement, the rotation control structure includes a housing and a worm gear and a worm shaft that are installed inside the housing and cooperate with each other. The output end of the worm gear is connected to the rotating shaft on the corresponding gripper, and the input end of the worm shaft is connected to a rotating handle.

[0015] As a further improvement, the gantry includes a base frame and a vertical frame, with a lifting mechanism mounted on the vertical frame and a slide rail device on the base frame for supporting and guiding the base plate installed at the lower end of the vacuum interrupter.

[0016] As a further improvement, the slide rail device includes a slide rail body, a limiting component fixedly installed on the slide rail body, and a positioning component inserted into the slide rail body. The limiting component and the positioning component are used to stop and limit the movement of the base plate at both ends.

[0017] The beneficial effects are as follows: The vacuum interrupter tilting device provided by this utility model is an improved invention. This device guides two arms onto the main frame of the lifting frame and uses an opening and closing control mechanism to control the approach and separation of the two arms. When the vacuum interrupter needs to be assembled onto this device for tilting, the two arms approach each other, allowing the grippers on the arms to engage and hold the vacuum interrupter tightly from both sides. Compared to existing technologies, this method is simpler to operate and has higher efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the vacuum interrupter flipping device in this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Base frame; 2. Vertical frame; 3. Traveling wheels; 4. Main frame; 5. Arm; 6. Two-way threaded rod; 7. Rotating handwheel; 8. Claw gripper; 81. Connecting plate; 82. End plate; 83. Rotating shaft; 9. Lock; 10. Chassis; 11. Rotating handle; 12. Slide rail device; 121. Base plate; 122. Side plate; 123. Roller; 124. Top plate; 125. Positioning component; 13. Base plate; 14. Guide protrusion; 15. Vacuum interrupter. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments.

[0022] To address the problems in the prior art, the basic concept of this utility model is to enable the two arms to move towards each other, thereby engaging and clamping the vacuum interrupter from both sides of the arms, simplifying the operation of assembling the vacuum interrupter onto the vacuum interrupter flipping device.

[0023] Specific embodiment 1 of the vacuum interrupter flipping device provided by this utility model:

[0024] See appendix Figure 1 The vacuum interrupter flipping device includes a gantry, a lifting mechanism, a lifting frame, and a gripper 8.

[0025] The gantry includes a base frame 1 and an upright frame 2. The base frame 1 is equipped with wheels 3 at its bottom, allowing the entire gantry to move on the ground when pushed by the operator. The upright frame 2 is fixedly installed on one side of the upper surface of the base frame 1. The side on the base frame 1 where the upright frame 2 is installed is the rear side, the side away from the upright frame 2 is the front side, and the other two sides are the left and right sides, respectively.

[0026] The upright frame 2 is a gantry structure, including two columns and a crossbeam fixed between the tops of the two columns. The lifting frame includes a main frame body 4 and two boom bodies 5. The main frame body 4 is positioned between the two columns, and guide rails extending vertically are provided on the inner sides of both columns. The left and right ends of the main frame body 4 respectively guide and cooperate with the guide rails on the corresponding columns. The lifting mechanism is mounted on the upright frame 2, and the lifting output end of the lifting mechanism is connected to the lifting frame via a transmission, thereby enabling the lifting frame to move up and down using the lifting mechanism. The main body of the lifting mechanism is fixedly mounted on the crossbeam. The lifting mechanism can be an electric hoist or a hydraulic cylinder; the lifting mechanism is existing technology and is not shown in the figure.

[0027] Both booms 5 are located on the front side of the main frame 4, and are spaced apart in the left-right direction. The front side of the main frame 4 is provided with a guide structure for guiding the two booms 5. Specifically, the guide structure is a guide rail extending in the left-right direction. One end of the two booms 5 in the length direction is guided and engaged with the guide rail on the main frame 4, and the other end of the two booms 5 in the length direction extends horizontally forward, so that both booms 5 are cantilevered.

[0028] The main frame 4 is equipped with an opening and closing control mechanism for driving the two arms 5 to move closer or further apart. This mechanism includes a bidirectional threaded rod 6, the axis of which is in the same direction as the left and right. The bidirectional threaded rod 6 is rotatably mounted on the main frame 4, and a handwheel 7 for manually rotating the bidirectional threaded rod 6 is provided at one axial end. The bidirectional threaded rod 6 has two sections of threads with opposite directions of rotation, and each of the two arms 5 is provided with mating holes for engaging with the two sections of threads on the bidirectional threaded rod 6.

[0029] At the ends of both arm bodies 5, that is, at the ends of arm bodies 5 furthest from the main frame 4, a fixing structure for fixing to the vacuum interrupter chamber 15 is provided. The fixing structure is specifically a gripper 8. The gripper 8 includes a connecting plate 81 and end plates 82 located at both ends of the connecting plate 81. The two end plates 82 on the same gripper 8 are parallel to each other. A rotating shaft 83 with the same direction as its thickness is fixedly provided on the end plate 82. The rotating shaft 83 passes through the corresponding arm body 5 and rotates with the arm body 5. The axis of the rotating shaft 83 is in the same direction as the left and right direction.

[0030] Each end plate 82 is provided with an arc-shaped fitting portion adapted to the shape of the vacuum interrupter 15, and the space between the two end plates 82 on the same claw 8 forms a receiving groove. During use, the two claws 8 approach each other and engage on the left and right sides of the vacuum interrupter 15. The annular radial protrusion on the vacuum interrupter 15 can be embedded into the receiving groove, thereby forming a blocking and limiting effect with the end plates 82 in the vertical direction, preventing the vacuum interrupter 15 from sliding relative to the claws 8. In other embodiments of this example, the claws 8 can also be an integral structure, which will not be elaborated here. For vacuum interrupters 15 with a uniform outer diameter, anti-slip pads or other structures can be provided on the arc-shaped fitting portion of the claws 8 to prevent the vacuum interrupter 15 from sliding relative to the claws 8, and in this case, the receiving groove may not be provided on the claws 8.

[0031] A locking structure is provided between the two gripping claws 8 for locking the two gripping claws 8 after they are engaged on the vacuum interrupter chamber 15. In one embodiment of this invention, the locking structure is a latch 9. After the two gripping claws 8 are engaged on the vacuum interrupter chamber 15, the operator can lock the two gripping claws 8 by turning the latch 9. The operation is convenient. The latch 9 is prior art and will not be described in detail here. In other embodiments of this invention, the locking structure can also be an ear seat fixedly provided on the gripping claw 8 and a locking bolt that can pass through the ear seat. A locking nut is threaded on the locking bolt. Tightening the locking nut can lock the two gripping claws 8. The locking structure can ensure that sufficient radial pressure is maintained between the gripping claws 8 and the vacuum interrupter chamber 15, thereby preventing the gripping claws 8 from disengaging from the vacuum interrupter chamber 15, and at the same time reducing the lateral force on the arm body 5.

[0032] One of the boom arms 5 is equipped with a rotation control structure for driving the gripper 8 on the boom arm 5 to rotate. The rotation control structure specifically includes a housing 10 and a worm gear and worm shaft housed within the housing 10 and cooperating with each other. The output end of the worm gear is coaxially connected to the rotating shaft 83 of the gripper 8 on the boom arm 5, and the input end of the worm shaft is connected to a rotary handle 11. By rotating the rotary handle 11, the operator can drive the gripper 8 and the vacuum interrupter 15 to rotate together. Using a worm gear and worm shaft for transmission increases torque and provides a self-locking function, making it suitable for manual operation to rotate the vacuum interrupter 15.

[0033] A slide rail device 12 is provided on the base frame 1. The slide rail device 12 includes a slide rail body and limiting members and positioning members 125 provided on the slide rail body. The slide rail body includes a base plate 121 and two side plates 122 provided on the left and right sides of the upper side of the base plate 121. Rollers 123 are rotatably provided on the inner side of each side plate 122. The rollers 123 on the same side plate 122 are arranged at intervals in the front-back direction. A top plate 124 is fixedly connected to the upper end of each side plate 122 by bolts. The top plate 124 covers the rollers 123, and there is a certain gap between the top plate 124 and the corresponding rollers 123. The limiting members and positioning members 125 are both provided on the base plate 121, wherein the limiting members are fixedly installed on the base plate 121, and the positioning members 125 are inserted into the base plate 121.

[0034] Both ends of the vacuum interrupter 15 are uneven. Therefore, in order to facilitate the transfer of the vacuum interrupter 15 within the factory, a base plate 13 is fixedly installed on one axial end of the vacuum interrupter 15 by bolts. The base plate 13 has an opening for the moving end or stationary end of the vacuum interrupter 15 to pass through. The transfer vehicle used to rotate the vacuum interrupter 15 is also equipped with a structure similar to the slide rail device 12 mentioned above. This structure supports the left and right sides of the base plate 13. When it is necessary to transfer the vacuum interrupter 15 from the transfer vehicle to the vacuum interrupter 15 flipping device, the transfer vehicle is first docked with the base frame 1. Two guide protrusions 14 are provided on the abutment to guide the transfer vehicle. The inner side of the guide protrusions 14 is provided with a slope to facilitate the accurate docking of the structure on the transfer vehicle that supports the base plate 13 with the slide rail device 12. Then, the vacuum interrupter 15 is pushed to transfer the base plate 13 onto the slide rail device 12, and the left and right sides of the base plate 13 reach the space between the rollers 123 and the top plate 124 on the left and right sides of the slide rail device 12, respectively. The rollers 123 support the base plate 13, and the top plate 124 limits the position of the base plate 13.

[0035] After the base plate 13 is moved to the appropriate position, its rear end will abut against the limiting member. At this time, the positioning member 125 is inserted into the base plate 121, and the positioning member 125 is used to stop and limit the front end of the base plate 13, so that the base plate 13 can be stably kept in its original position. In this embodiment, the positioning member 125 is specifically a positioning pin, and the base plate 121 is provided with a pin hole for cooperating with the positioning pin.

[0036] After the vacuum interrupter 15 reaches the appropriate position, the two arms 5 move closer together, causing the grippers 8 on the two arms 5 to close together, thus clamping the left and right sides of the vacuum interrupter 15. Then, the latches 9 on the two grippers 8 are locked. At this time, the vacuum interrupter 15 is transferred and fixed to the vacuum interrupter flipping device. Afterward, the vacuum interrupter 15 can be silvered, tested, or simply transferred to another location using the vacuum interrupter flipping device.

[0037] If silver plating is to be performed, the top plate 124 on the slide rail device 12 must first be removed. Then, the lifting mechanism is used to drive the lifting frame to rise, thereby driving the vacuum interrupter 15 to rise. After the vacuum interrupter 15 rises to a suitable height, the vacuum interrupter 15 is rotated 180°, and the operator removes the bottom plate 13 at the end of the vacuum interrupter 15. Then, the vacuum interrupter rotation device is pushed to the side of the silver plating equipment, so that the vacuum interrupter 15 reaches the top of the electroplating tank. The vacuum interrupter 15 is moved downward using the vacuum interrupter rotation device, and the lower end of the vacuum interrupter 15 is immersed in the electroplating solution. After the electroplating of this end is completed, the vacuum interrupter 15 rotation device is pushed backward, and the vacuum interrupter 15 is rotated 180° before the other end of the vacuum interrupter 15 is silvered.

[0038] If testing is to be performed, the vacuum interrupter 15 can be kept in a vertical position, and testing instruments or fixtures can be set at the upper end of the vacuum interrupter 15. If it is necessary to flip the vacuum interrupter 15 so that the other end faces upward during the test, the top plate 124 on the slide rail device 12 should be removed first, and then the lifting mechanism should be used to drive the lifting frame to rise, thereby driving the vacuum interrupter 15 to rise. After the vacuum interrupter 15 rises to a suitable height, it should be flipped 180°. The operator should remove the bottom plate 13 at one end of the vacuum interrupter 15 and install it at the other end. Then the vacuum interrupter 15 should be lowered again so that the bottom plate 13 returns to the slide rail device 12.

[0039] The vacuum interrupter flipping device is easy to operate. After the vacuum interrupter 15 is placed in the appropriate position, the two grippers 8 can be brought together to assemble the vacuum interrupter 15 onto the vacuum interrupter flipping device. Compared with the cumbersome operation process of the prior art, the operation efficiency of the vacuum interrupter flipping device is higher.

[0040] The operator can rotate the handle 11 to flip the vacuum interrupter 15. Due to the use of worm gear and worm drive, the flipping process is relatively labor-saving and the operator's workload is low. Moreover, since the worm gear and worm can achieve self-locking, there is no need to lock the vacuum interrupter 15 after flipping, making this step more convenient and efficient compared to existing technologies.

[0041] Moreover, the vacuum interrupter flipping device has a more diversified use. It can not only be used for electroplating of the vacuum interrupter 15, but also for assisting in the testing and transportation of the vacuum interrupter 15, realizing multiple uses of one machine and thus reducing the overall production cost of the vacuum interrupter 15.

[0042] In addition, since the arm 5 of the vacuum interrupter flipping device is located on the front side of the stand 2, the upper part of the stand 2 does not need to leave space to accommodate the vacuum interrupter 15, and the overall height of the stand 2 can be lower, which can effectively improve the mobility of the stand 2 and make it easier for the stand 2 to be used in more scenarios.

[0043] Specific embodiment 2 of the vacuum interrupter flipping device provided by this utility model:

[0044] This embodiment is based on Embodiment 1, but differs from Embodiment 1 in that no locking structure is provided between the two grippers in this embodiment. For a vacuum interrupter with an annular radial protrusion in the middle, the axial blocking engagement between the grippers and the radial protrusion can prevent the vacuum interrupter from sliding relative to the grippers.

[0045] Specific embodiment 3 of the vacuum interrupter flipping device provided by this utility model:

[0046] This embodiment is based on Embodiment 1, but differs from Embodiment 1 in that both side walls in this embodiment are located below the main frame, and the length direction of the two side walls is vertical.

[0047] Compared to Example 1, the stand height in this example needs to be higher, but the size of the base frame can be smaller, making it suitable for silver plating equipment with limited horizontal space.

[0048] Specific embodiment 4 of the vacuum interrupter flipping device provided by this utility model:

[0049] This embodiment is based on Embodiment 1, but differs from Embodiment 1 in that the rotation control structure in this embodiment is a motor reducer. The output shaft of the motor reducer is coaxially connected to the rotating shaft of one of the grippers. When it is necessary to rotate the vacuum interrupter, the motor reducer can be started directly, which can further facilitate operation and reduce the labor intensity of the operator.

[0050] Specific embodiment 5 of the vacuum interrupter chamber flipping device provided by this utility model:

[0051] This embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that no rotation control structure is set in this embodiment. In this embodiment, the rotation of the vacuum interrupter relies on the operator to directly push the vacuum interrupter to rotate.

[0052] Specific embodiment 6 of the vacuum interrupter flipping device provided by this utility model:

[0053] This embodiment is based on embodiment 1, but differs from embodiment 1 in that no positioning or limiting components are provided in this embodiment, and the vacuum interrupter relies on the operator to manually control its movement position during the movement of the vacuum interrupter.

[0054] Specific embodiment 7 of the vacuum interrupter flipping device provided by this utility model:

[0055] This embodiment is based on embodiment 1, but differs from embodiment 1 in that the vacuum interrupter flipping device in this embodiment does not have a slide rail device.

[0056] In this embodiment, the base frame is provided with a space for the transfer vehicle to enter. After the transfer vehicle arrives at the appropriate position, the two grippers close and fasten onto the vacuum interrupter. Then, the base plate vacuum interrupter is separated from the transfer vehicle, and finally the base plate is removed from the vacuum interrupter.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum interrupter tilting device, comprising a gantry and a lifting mechanism mounted on the gantry, wherein the lifting output end of the lifting mechanism is provided with a lifting frame, the lifting frame comprising a main frame and two arms mounted on the main frame, and the ends of the two arms are rotatably provided with fixing structures for fixing to the vacuum interrupter, characterized in that, The main frame is equipped with a guide structure for guiding the two arms. The two arms are arranged at intervals along their movement direction and the movement direction of the two arms is horizontal. The main frame is equipped with an opening and closing control mechanism for driving the two arms to move closer or further apart. The fixing structure is a gripper, and the gripper is equipped with an arc-shaped fitting part for adapting to the shape of the vacuum interrupter.

2. The vacuum interrupter chamber flipping device according to claim 1, characterized in that, The arc-shaped fitting part is provided with a receiving groove for accommodating the radially protruding part in the middle of the vacuum interrupter.

3. The vacuum interrupter chamber flipping device according to claim 2, characterized in that, The gripper includes a connecting plate and end plates located at both ends of the connecting plate. The two end plates on the same gripper are parallel to each other, and the arc-shaped fitting part is located on one side of the end plate. The area between the two end plates forms a receiving groove.

4. The vacuum interrupter chamber flipping device according to any one of claims 1-3, characterized in that, A locking structure is provided between the two grippers to lock the two grippers together after they are engaged on the vacuum interrupter.

5. The vacuum interrupter chamber flipping device according to claim 4, characterized in that, The locking mechanism is a latch.

6. The vacuum interrupter chamber flipping device according to any one of claims 1-3, characterized in that, The two arms are located on the horizontal side of the main frame, and both arms are cantilevered.

7. The vacuum interrupter chamber flipping device according to any one of claims 1-3, characterized in that, One of the arms is equipped with a rotation control structure for driving the gripper on the arm to rotate.

8. The vacuum interrupter chamber flipping device according to claim 7, characterized in that, The rotation control structure includes a housing and a worm gear and a worm shaft that are installed inside the housing and cooperate with each other. The output end of the worm gear is connected to the rotating shaft on the corresponding gripper, and the input end of the worm shaft is connected to a rotating handle.

9. The vacuum interrupter chamber flipping device according to any one of claims 1-3, characterized in that, The gantry includes a base frame and an upright frame. The lifting mechanism is mounted on the upright frame, and the base frame is equipped with a slide rail device for supporting and guiding the base plate installed at the lower end of the vacuum interrupter.

10. The vacuum interrupter chamber flipping device according to claim 9, characterized in that, The slide rail device includes a slide rail body, a limiting component fixedly installed on the slide rail body, and a positioning component inserted into the slide rail body. The limiting component and the positioning component are used to stop and limit the movement of the base plate at both ends.

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