Device and method for static load test of switch terminal

Abstract

The invention provides a device and method for a static load test of a switch terminal, and belongs to the technical field of power equipment inspection. The device for the static load test of the switch terminal comprises a test bench, a mechanical arm, a first loading mechanism, a second loading mechanism, a third loading mechanism and an opening and closing mechanism, the test bench is provided with a test position, and the test position is used for placing an isolation switch. The mechanical arm is used for moving the disconnecting switch to be fixed to or away from the test position. The first loading mechanism, the second loading mechanism and the third loading mechanism are all used for getting close to or away from a terminal of an isolation switch on a test position and outputting loading force in the first direction, the second direction and the third direction respectively, and the first direction, the second direction and the third direction are perpendicular to one another; the opening and closing mechanism is used for connecting a handle of the disconnecting switch and driving the handle to open and close. According to the invention, the convenience of the static load test of the switch terminal can be effectively improved through the cooperation of an automatic structure.

Description

Technical Field

[0001] The invention belongs to the technical field of power equipment inspection, and in particular relates to a device and method for static load testing of switch terminals. Background Art

[0002] High-voltage isolating switches are important switching devices in the electrical systems of power plants and substations. They are generally used in conjunction with high-voltage circuit breakers to connect, disconnect or convert lines when high-voltage equipment is under voltage but loaded. Their main function is to ensure the safety of high-voltage electrical appliances and devices during maintenance work and to isolate the voltage.

[0003] In the use of high-voltage disconnectors, the mechanical load performance of its terminals is one of the key factors to ensure the stability of high-voltage disconnectors. Therefore, the terminal static mechanical load test has also become a necessary type test item for high-voltage disconnectors. It is also an effective means to inspect the quality of components / raw materials such as terminal blocks, contacts and support insulators of high-voltage disconnectors.

[0004] At present, it can be seen from the Chinese invention patent with application number "201811148966.4" and the Chinese invention patent with application number "202411078242.2" that the existing device for static load testing of isolation switch terminals has a relatively complex structure and is relatively complicated to operate during use, resulting in poor convenience of the test. Summary of the invention

[0005] The technical problem to be solved by the present invention is how to improve the convenience of static load testing of isolating switch terminals. In view of the deficiencies in the prior art, a device and method for static load testing of switch terminals are provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] In the first aspect, the present invention provides a device for static load testing of switch terminals, comprising a test bench, a mechanical arm, a first loading mechanism, a second loading mechanism, a third loading mechanism and an opening and closing mechanism; the test bench is provided with a test position, the test position is used to place an isolating switch; the mechanical arm is used to move the isolating switch to be fixed at the test position or away from the test position; the first loading mechanism, the second loading mechanism and the third loading mechanism are all used to approach or move away from the terminals of the isolating switch at the test position, and output loading forces along a first direction, a second direction and a third direction respectively, the first direction, the second direction and the third direction being perpendicular to each other; the opening and closing mechanism is used to connect the handle of the isolating switch and drive the handle to open and close.

[0008] Compared with the prior art, the beneficial effects of the device for static load testing of switch terminals of the present invention include: a test bench, a mechanical arm, a first loading mechanism, a second loading mechanism, a third loading mechanism and an opening and closing mechanism are arranged to form a device for static load testing of switch terminals, wherein a test position is arranged on the test bench, and an isolating switch can be placed on the test position, and at the same time, the mechanical arm can move the isolating switch to be fixed at the test position or away from the test position, which can not only ensure the stability of the isolating switch at the test position, and then ensure the stability when the subsequent loading force is loaded on the terminal, and ensure the accuracy of the test results, but also can realize automatic loading and unloading of the isolating switch through the mechanical arm, without manual operation, and effectively improve the convenience of the test; on this basis, the first loading mechanism, the second loading mechanism and the third loading mechanism can all be close to or away from the terminal of the isolating switch at the test position, and output the loading force along the first direction, the second direction and the third direction respectively, and the first direction, the second direction and the third direction are perpendicular to each other, so that after the isolating switch is installed Afterwards, the static load loading on the terminal can be achieved through the movement of the three loading mechanisms and the loading forces output from different directions, which effectively ensures the stability of the test results. Moreover, the three loading mechanisms are far away from the test position, which is convenient for the robot arm to automatically load and unload the isolating switch, avoids interference between the three loading mechanisms and the robot arm and the isolating switch, and thus ensures the stability of the test. Through the movement of the three loading mechanisms, the test position can be convenient for the fixed placement of isolating switches of different models, and the loading force is output by the three loading mechanisms to achieve static load loading tests on the terminals of isolating switches of different models; at the same time, the opening and closing mechanism can be connected to the handle of the isolating switch and drive the handle to open and close at the same time. In this way, while the static load loading on the terminal is achieved by the three loading mechanisms, the opening and closing of the handle is driven by the opening and closing mechanism to achieve the opening and closing of the isolating switch, thereby achieving the quality inspection of the isolating switch. The whole process can be automated, further improving the convenience of the test.

[0009] Optionally, the robotic arm includes a first rotating support, a first telescopic support frame and a working arm, the first rotating support is installed on the test bench and is located on one side of the test position, the first rotating support is used to rotate around a vertical direction, the first telescopic support frame is installed on the first rotating support and is used to telescope along the vertical direction, one end of the working arm is installed on the first telescopic support frame, and the other end is used to be detachably connected to the isolating switch.

[0010] Optionally, the working arm includes an arm rod and a rotating disk, a first clamping piece and a disassembly and assembly work piece. There are multiple arm rods, and the multiple arm rods are arranged in sequence. Two adjacent arm rods are hinged about a horizontal direction and are used to rotate with each other. One end of the structure formed by the hinged multiple arm rods is hinged about the horizontal direction to the upper end of the first telescopic support frame, and the other end is connected to the rotating disk. The rotating disk is used for self-rotation. The first clamping piece and the disassembly and assembly work piece are distributed at intervals along the edge of the rotating disk. The first clamping piece is used to clamp the isolating switch and the pressure block used to fix the isolating switch. The disassembly and assembly work piece is used to install or disassemble the fixed pressure block.

[0011] Optionally, the opening and closing mechanism includes a bracket and a telescopic rod, the bracket is installed on the test bench and located on one side of the test position, one end of the telescopic rod is installed on the bracket, and the other end is used to move closer to or away from the handle and is used to be detachably connected to the handle.

[0012] Optionally, one end of the telescopic rod is rotatably connected to the bracket and is used to rotate in a horizontal direction so that the other end of the telescopic rod moves in a vertical direction. The other end of the telescopic rod is provided with a second clamping member, and the second clamping member is used to clamp the handle.

[0013] Optionally, the test bench is provided with a lifting support and a sensor, the lifting support is used to move back and forth in the vertical direction, the test position is located on the upper end surface of the lifting support, and the sensor is located on one side of the lifting support and is used to be set toward the test position.

[0014] Optionally, the first loading mechanism includes a first movable seat, a second telescopic support frame, a first linear drive and a first load loader, the first movable seat is slidably mounted on the test bench and is used to approach or move away from the test position along the first direction, the second telescopic support frame is mounted on the first movable seat and is used to reciprocate in the vertical direction, the first linear drive is mounted on the upper end of the second telescopic support frame and is drivingly connected to the first load loader to drive the first load loader to reciprocate along the first direction, and the first load loader is used to resist the terminal and output the loading force.

[0015] Optionally, the second loading mechanism includes a second movable seat, a third telescopic support frame, a second linear drive and a second load loader, the second movable seat is slidably mounted on the test bench and is used to approach or move away from the test position along the second direction, the third telescopic support frame is mounted on the second movable seat and is used to reciprocate along the vertical direction, the second linear drive is mounted on the upper end of the third telescopic support frame and is drivingly connected to the second load loader to drive the second load loader to reciprocate along the second direction, and the second load loader is used to resist the terminal and output the loading force.

[0016] Optionally, the third loading mechanism includes a third movable seat, a fourth telescopic support frame, a third linear drive, a third load loader and a second rotating support. The third movable seat is slidably mounted on the test bench and is used to approach or move away from the test position along a fourth direction. The fourth direction intersects both the first direction and the second direction and is perpendicular to the third direction. The second rotating support is rotatably mounted on the third movable seat around the third direction. The fourth telescopic support frame is mounted on the second rotating support and is used to reciprocate along the third direction. The third linear drive member is mounted on the upper end of the fourth telescopic support frame and is drivingly connected to the third load loader to drive the third load loader to reciprocate along the third direction. The third load loader is used to resist the terminal and output the loading force.

[0017] In a second aspect, the present invention further provides a method for a static load test of a switch terminal. Based on the device for a static load test of a switch terminal as described above, the method for a static load test of a switch terminal comprises:

[0018] S1. Move the isolating switch to the test position of the test bench of the device for static load test of switch terminals by the mechanical arm of the device for static load test of switch terminals and fix it;

[0019] S2, driving the first loading mechanism, the second loading mechanism and the third loading mechanism of the device for static load test of switch terminals to approach the test position so as to abut against the terminals of the disconnector and output a loading force;

[0020] S3, driving the opening and closing mechanism of the device for static load test of switch terminals to connect the handle of the isolating switch, and driving the handle to open and close through the opening and closing mechanism;

[0021] S4, driving the first loading mechanism, the second loading mechanism and the third loading mechanism to stop outputting the loading force and move away from the test position;

[0022] S5, driving the opening and closing mechanism to separate from the handle, driving the mechanical arm to move the isolating switch away from the test position, completing a static load test of the terminal, and repeating S1.

[0023] Compared with the prior art, the beneficial effects of the method for static load testing of switch terminals of the present invention are the same as the beneficial effects of the above-mentioned device for static load testing of switch terminals, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Figure 1 : A structural diagram of a device for static load testing of switch terminals according to an embodiment of the present invention from one perspective;

[0026] Figure 2 : A schematic structural diagram of another perspective of the device for static load testing of switch terminals in an embodiment of the present invention;

[0027] Figure 3 : Flow chart of the method for static load testing of switch terminals in an embodiment of the present invention.

[0028] Among them, 1-test bench, 11-test position, 12-lifting support, 13-sensor, 2-mechanical arm, 21-first rotating support, 22-first telescopic support frame, 23-working arm, 231-arm, 232-rotating disk, 233-first clamping member, 234-disassembly and assembly working member, 3-first loading mechanism, 31-first moving seat, 32-second telescopic support frame, 33-first linear drive member, 34-first load loader, 4-second loading mechanism, 41 -second movable seat, 42-third telescopic support frame, 43-second linear drive member, 44-second load loader, 5-third loading mechanism, 51-third movable seat, 52-fourth telescopic support frame, 53-third linear drive member, 54-third load loader, 55-second rotating support, 6-opening and closing mechanism, 61-bracket, 62-telescopic rod, 621-second clamping member, 7-isolating switch, 71-terminal, 72-handle, 73-pressing block, 8-controller. DETAILED DESCRIPTION

[0029] In order to better understand the present invention, the content of the present invention is further clearly set forth in conjunction with the embodiments below, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are provided in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0030] It should be noted that the Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the Y axis in the drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the Y axis represents the front side, and the reverse direction of the Y axis represents the back side; the X axis in the drawings represents the left and right position, and the positive direction of the X axis represents the right side, and the reverse direction of the X axis represents the left side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0033] In the first aspect, an embodiment of the present invention provides a device for static load testing of switch terminals, comprising a test bench 1, a robotic arm 2, a first loading mechanism 3, a second loading mechanism 4, a third loading mechanism 5 and an opening and closing mechanism 6; a test position 11 is provided on the test bench 1, and the test position 11 is used to place the isolating switch 7; the robotic arm 2 is used to move the isolating switch 7 to be fixed at the test position 11 or away from the test position 11; the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 are all used to approach or move away from the terminal 71 of the isolating switch 7 on the test position 11, and output loading force along the first direction, the second direction and the third direction respectively, and the first direction, the second direction and the third direction are perpendicular to each other; the opening and closing mechanism 6 is used to connect the handle 72 of the isolating switch 7, and drive the handle 72 to open and close.

[0034] Specifically, the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 can be of the same structure or of different structures. The specific structure can be a loading force output structure composed of weights, a pressure output structure composed of a worm screw, a loading force output structure composed of a hydraulic telescopic structure, or a loading force output structure composed of an anti-static load measuring instrument; the isolating switch 7 can be detachably fixed on the test bench 1 by a press-fit structure, or can be fixed on the test bench 1 by a press-fit structure; Figure 1 As shown, the first direction is the Y-axis direction, the second direction is the X-axis direction, and the third direction is the Z-axis direction.

[0035] In this embodiment, Figure 1 and Figure 2 As shown, a test bench 1, a mechanical arm 2, a first loading mechanism 3, a second loading mechanism 4, a third loading mechanism 5 and an opening and closing mechanism 6 are arranged to form a device for static load testing of switch terminals, wherein a test position 11 is arranged on the test bench 1, and the test position 11 can be used to place the isolating switch 7. At the same time, the mechanical arm 2 can move the isolating switch 7 to be fixed to the test position 11 or away from the test position 11. This arrangement can not only ensure the stability of the isolating switch 7 on the test position 11, and then ensure the stability when the subsequent loading force is loaded on the terminal 71, and ensure the accuracy of the test results, but also realize the automatic loading and unloading of the isolating switch 7 through the mechanical arm 2, without manual operation, and effectively improve the convenience of the test; on this basis, the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 can all be close to or away from the terminal 71 of the isolating switch 7 on the test position 11, and output the loading force along the first direction, the second direction and the third direction respectively, and the first direction, the second direction and the third direction are perpendicular to each other. In this arrangement, after the isolating switch 7 is installed, it can be loaded and unloaded automatically through the three loading mechanisms The movement of the three loading mechanisms and the loading forces output from different directions respectively realize the loading of the static load on the terminal 71, which effectively ensures the stability of the test results. Moreover, by the distance between the three loading mechanisms and the test position 11, it is convenient for the robot 2 to automatically load and unload the isolating switch 7, and avoids interference between the three loading mechanisms and the robot 2 and the isolating switch 7, thereby ensuring the stability of the test. By the movement of the three loading mechanisms, the test position 11 can facilitate the fixed placement of isolating switches 7 of different models, and the loading forces are output by the three loading mechanisms to realize the static load loading test on the terminals 71 of isolating switches 7 of different models; at the same time, the opening and closing mechanism 6 can be connected to the handle 72 of the isolating switch 7 and drive the handle 72 to open and close at the same time. With this arrangement, the static load loading on the terminal 71 can be realized by the three loading mechanisms, and the opening and closing of the handle 72 can be driven by the opening and closing mechanism 6 to realize the opening and closing of the isolating switch 7, thereby realizing the quality inspection of the isolating switch 7. The whole process can be automated, further improving the convenience of the test.

[0036] It should be noted that if Figure 1 As shown, a controller 8 is also provided, wherein the controller 8 can be electrically connected to the robot arm 2, the first loading mechanism 3, the second loading mechanism 4, the third loading mechanism 5 and the opening and closing mechanism 6 respectively, and can realize the control of the robot arm 2, the first loading mechanism 3, the second loading mechanism 4, the third loading mechanism 5 and the opening and closing mechanism 6 through control signal transmission. Specifically, Figure 3 As shown, the controller 8 can realize the following process by controlling the above structure: S1, move the isolating switch 7 to the test position 11 of the test bench 1 of the device for static load test of the switch terminal through the mechanical arm 2 of the device for static load test of the switch terminal and fix it; S2, drive the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 of the device for static load test of the switch terminal to approach the test position 11, so as to counteract with the terminal 71 of the isolating switch 7 and output the loading force; S3, drive the opening and closing mechanism 6 of the device for static load test of the switch terminal to connect the handle 72 of the isolating switch 7, and drive the handle 72 to open and close through the opening and closing mechanism 6; S4, drive the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 to stop outputting the loading force and move away from the test position 11; S5, drive the opening and closing mechanism 6 to separate from the handle 72, drive the mechanical arm 2 to move the isolating switch 7 away from the test position 11, complete the static load test of the terminal 71, and repeat S1. Thereby, the automation process of the static load loading test of the terminal 71 of the isolating switch 7 is realized, and the convenience of the test operation is effectively improved.

[0037] Optionally, the robotic arm 2 includes a first rotating support 21, a first telescopic support frame 22 and a working arm 23. The first rotating support 21 is installed on the test bench 1 and is located on one side of the test position 11. The first rotating support 21 is used to rotate in a vertical direction. The first telescopic support frame 22 is installed on the first rotating support 21 and is used to telescope in a vertical direction. One end of the working arm 23 is installed on the first telescopic support frame 22, and the other end is used to be detachably connected to the isolating switch 7.

[0038] Specifically, the first rotating support 21 can be rotationally driven by a rotating motor or a servo motor, and the first telescopic support frame 22 can be telescopically driven by a telescopic electric cylinder or a telescopic oil cylinder, wherein the controller 8 can be electrically connected to the first rotating support 21 and the first telescopic support frame 22 respectively to realize signal control.

[0039] In this optional embodiment, if Figure 1As shown, a first rotating support 21, a first telescopic support frame 22 and a working arm 23 are provided to form a mechanical arm 2, wherein the first rotating support 21 is mounted on the test bench 1, and the first telescopic support frame 22 is mounted on the first rotating support 21, and one end of the working arm 23 is mounted on the first telescopic support frame 22, thereby ensuring the installation stability of the entire mechanical arm 2; on this basis, the first rotating support 21 is located on one side of the test position 11, and the first rotating support 21 can rotate around the vertical direction, the first telescopic support frame 22 can be telescoped in the vertical direction, and the other end of the working arm 23 can be connected to the isolating switch 7 is detachably connected. With such an arrangement, the working arm 23 on the entire robot arm 2 can be located on a side close to or away from the test position 11 by rotating the first rotating support 21, so that when the working arm 23 is detachably connected to the isolating switch 7, the isolating switch 7 can be moved between a position close to the test position 11 and a position away from the test position 11. At the same time, the height of the isolating switch 7 can be adjusted by raising and lowering the first telescopic support frame 22, thereby ensuring that the isolating switch 7 will not collide with other structures on the test bench 1 during movement, so that it can be stably moved in or out of the test bench 1.

[0040] Optionally, the working arm 23 includes an arm rod 231 and a rotating disk 232, a first clamping piece 233 and a disassembly and assembly work piece 234. The arm rod 231 has multiple arms 231, and the multiple arm rods 231 are arranged in sequence. Two adjacent arm rods 231 are hinged in a horizontal direction and are used to rotate with each other. One end of the structure formed by the hinged multiple arm rods 231 is hinged in a horizontal direction to the upper end of the first telescopic support frame 22, and the other end is connected to the rotating disk 232. The rotating disk 232 is used for self-rotation. The first clamping piece 233 and the disassembly and assembly work piece 234 are distributed at intervals along the edge of the rotating disk 232. The first clamping piece 233 is used to clamp the isolating switch 7 and the pressure block 73 used to fix the isolating switch 7. The disassembly and assembly work piece 234 is used to install or disassemble the fixed pressure block 73.

[0041] Specifically, the rotating disk 232 can be driven to rotate by a servo motor or a rotating motor; the first clamping member 233 can be composed of a claw and a rotating driving member such as a motor, and the opening and closing of the claw can be achieved by the rotation drive of the motor to achieve clamping; the hinge between the two adjacent arm rods 231 and the hinge with the upper end of the first telescopic support frame 22 are installed with a rotating driving structure such as a motor or a servo motor, and the mutual rotation between the two adjacent arm rods 231 can be achieved by the drive of the rotating driving structure; the disassembly and assembly workpiece 234 can be a rotating head with its own motor, and the bolts on the pressure block 73 can be disassembled and assembled by forward and reverse rotation, or it can be a suction cup, which can press the buckle on the pressure block 73, and the pressing and separation of the pressure block on the isolating switch 7 can be achieved by opening and closing the buckle.

[0042] In this optional embodiment, if Figure 1 and Figure 2As shown, an arm 231 and a rotating disk 232, a first clamping piece 233 and a disassembling work piece 234 are provided to form a working arm 23, wherein a plurality of arm 231 are provided, and the plurality of arm 231 are arranged in sequence, and two adjacent arm 231 are hinged about a horizontal direction and can rotate with each other. With such a configuration, the expansion and bending of the working arm 23 can be realized through the mutual rotation between the two adjacent arm 231, thereby improving the mobility of the mechanical arm 2 when moving the disconnector 7; on this basis, one end of the structure formed by the hinged connection of the plurality of arm 231 is hinged about a horizontal direction with the upper end of the first telescopic support frame 22, thereby further improving the mutual rotation of the arm 231 and the first telescopic support frame 22. The other end of the structure formed by hinged multiple arms 231 is connected to the rotating disk 232, wherein the rotating disk 232 can rotate on its own, and the first clamping member 233 and the disassembly and assembly work piece 234 are spaced apart along the edge of the rotating disk 232. The first clamping member 233 can clamp the isolating switch 7 and the pressure block 73 for fixing the isolating switch 7, and the disassembly and assembly work piece 234 can install or remove the fixed pressure block 73. In this way, the positions of the first clamping member 233 and the disassembly and assembly work piece 234 can be adjusted by rotating the rotating disk 232, thereby facilitating the first clamping member 233 to clamp the isolating switch 7 and the disassembly and assembly work piece 234 to disassemble the pressure block 73, thereby effectively improving the convenience of the test.

[0043] Optionally, the opening and closing mechanism 6 includes a bracket 61 and a telescopic rod 62, the bracket 61 is installed on the test bench 1 and is located on one side of the test position 11, one end of the telescopic rod 62 is installed on the bracket 61, and the other end is used to approach or move away from the handle 72, and is used to be detachably connected to the handle 72.

[0044] Specifically, the telescopic rod 62 is composed of a large tube enclosed in a small tube, wherein the large tube is equipped with a telescopic driving component such as a telescopic electric cylinder. The telescopic driving component drives the small tube to be telescopic, thereby realizing the telescopic movement of the entire telescopic rod 62.

[0045] In this optional embodiment, if Figure 1 and Figure 2 As shown, in order to facilitate the connection of the opening and closing mechanism 6 with the handle 72 to realize the opening and closing of the isolating switch 7, a bracket 61 and a telescopic rod 62 are provided to form the opening and closing mechanism 6, wherein the bracket 61 is installed on the test bench 1 and is located on one side of the test position 11, and one end of the telescopic rod 62 is installed on the bracket 61, so as to facilitate the telescopic rod 62 to be extended and retracted so that the other end can be close to or away from the handle 72, and at the same time, the other end of the telescopic rod 62 can be detachably connected to the handle 72. In this way, the telescopic rod 62 can be extended to realize the connection with the handle 72, and then the handle 72 can be contracted to open to realize the opening of the isolating switch 7, and then the handle 72 can be extended to close the switch. The whole process is an automated operation, which effectively improves the convenience of the test.

[0046] Optionally, one end of the telescopic rod 62 is rotatably connected to the bracket 61 and is used to rotate around the horizontal direction so that the other end of the telescopic rod 62 moves along the vertical direction. The other end of the telescopic rod 62 is provided with a second clamping member 621, and the second clamping member 621 is used to clamp the handle 72.

[0047] Specifically, a rotating drive component such as a rotating motor or a servo motor is installed at the rotating connection between one end of the telescopic rod 62 and the bracket 61, and the relative rotation of the telescopic rod 62 and the bracket 61 can be achieved by the output of rotational force; the second clamping member 621 can be composed of a claw and a rotating drive component such as a motor, and the opening and closing of the claw can be achieved by the rotation drive of the motor, thereby achieving clamping.

[0048] In this optional embodiment, if Figure 1 and Figure 2 As shown, in order to improve the working flexibility of the opening and closing mechanism 6, one end of the telescopic rod 62 is rotatably connected to the bracket 61. In this way, the telescopic rod 62 can rotate relative to the bracket 61 in the horizontal direction, so that the other end of the telescopic rod 62 moves in the vertical direction. The height of the other end of the telescopic rod 62 is adjusted, which can not only improve the working flexibility of the opening and closing mechanism 6, but also can detachably connect handles 72 of different heights on different models of disconnectors 7 through height adjustment, effectively improving the model range of disconnectors 7 that can be tested; on this basis, a second clamping member 621 is provided on the other end of the telescopic rod 62, wherein, after the telescopic rod 62 is extended and rotated so that the second clamping member 621 is close to the handle 72, the handle 72 can be clamped by the second clamping member 621, thereby realizing the detachable connection between the telescopic rod 62 and the handle 72.

[0049] Optionally, a lifting support 12 and a sensor 13 are provided on the test bench 1. The lifting support 12 is used to move back and forth in the vertical direction. The test position 11 is located on the upper end surface of the lifting support 12. The sensor 13 is located on one side of the lifting support 12 and is used to be set toward the test position 11.

[0050] Specifically, the sensor 13 can be an infrared sensor, which emits an infrared signal toward the test position 11, receives the reflected signal after the isolating switch 7 is placed on the test position 11, generates a signal that the isolating switch 7 is in place and transmits it to the controller 8, so that the controller 8 can fix the isolating switch 7 on the test position 11 through the robot arm 2. It can also be an image sensor, which generates a signal that the isolating switch 7 is in place and transmits it to the controller 8 when the image acquired on the test position 11 is a preset image; the lifting support 12 is composed of a telescopic driving component such as a telescopic electric cylinder or a telescopic oil cylinder and a support plate, the test position 11 is located on the upper end surface of the support plate, the support plate is installed on the telescopic driving component, and the telescopic driving component is installed on the test bench 1.

[0051] In this optional embodiment, the height of the isolating switch 7 is convenient for adjusting, such as Figure 1 and Figure 2 As shown, the test bench 1 is also provided with a lifting support 12, wherein the lifting support 12 can reciprocate in the vertical direction, and the test position 11 is located on the upper end surface of the lifting support 12. In this way, the height of the isolating switch 7 can be adjusted by lifting and lowering the lifting support 12, thereby facilitating the loading of static loads and the opening and closing of the handle 72; on this basis, in order to facilitate the robot arm 2 to fix the isolating switch 7, a sensor 13 can be arranged on one side of the lifting support 12, and the sensor 13 can be arranged toward the test position 11. After the isolating switch 7 is placed on the test position 11, the reflected signal is received, and a signal that the isolating switch 7 is in place is generated and transmitted to the controller 8, so that the controller 8 can fix the isolating switch 7 on the test position 11 through the robot arm 2.

[0052] Optionally, the first loading mechanism 3 includes a first movable seat 31, a second telescopic support frame 32, a first linear drive member 33 and a first load loader 34. The first movable seat 31 is slidably mounted on the test bench 1 and is used to approach or move away from the test position 11 along the first direction. The second telescopic support frame 32 is mounted on the first movable seat 31 and is used to reciprocate along the vertical direction. The first linear drive member 33 is mounted on the upper end of the second telescopic support frame 32 and is drivingly connected to the first load loader 34 to drive the first load loader 34 to reciprocate along the first direction. The first load loader 34 is used to resist the terminal 71 and output a loading force.

[0053] Specifically, the first load loader 34 is an anti-static load measuring instrument; the first movable seat 31 slides on the test bench 1 through a slide rail, and realizes automatic sliding through a telescopic driving member such as a telescopic electric cylinder; the second telescopic support frame 32 realizes telescopic movement through a telescopic driving member such as a telescopic electric cylinder or a telescopic oil cylinder; the first linear driving member 33 is a worm gear structure or a telescopic electric cylinder, etc.

[0054] In this optional embodiment, if Figure 1 and Figure 2As shown, a first movable seat 31, a second telescopic support frame 32, a first linear drive member 33 and a first load loader 34 are provided to form a first loading mechanism 3, wherein the first movable seat 31 is slidably mounted on the test bench 1, and can approach or move away from the test position 11 along the first direction, and the second telescopic support frame 32 is mounted on the first movable seat 31, and the first linear drive member 33 is mounted on the upper end of the second telescopic support frame 32, and is drivingly connected to the first load loader 34, so that the entire first loading mechanism 3 can be moved close to or away from the test position 11 by the movement of the first movable seat 31; on this basis, the second telescopic support frame 32 can reciprocate in the vertical direction, so as to adjust the height of the first load loader 34 to make it flush with the terminal 71, and the first linear drive member 33 can drive the first load loader 34 to reciprocate in the first direction, so that the first load loader 34 can be against the terminal 71 and output a loading force, so as to realize the loading of a static load on the terminal along the first direction.

[0055] Optionally, the second loading mechanism 4 includes a second movable seat 41, a third telescopic support frame 42, a second linear drive member 43 and a second load loader 44. The second movable seat 41 is slidably mounted on the test bench 1 and is used to approach or move away from the test position 11 along the second direction. The third telescopic support frame 42 is mounted on the second movable seat 41 and is used to reciprocate along the vertical direction. The second linear drive member 43 is mounted on the upper end of the third telescopic support frame 42 and is drivingly connected to the second load loader 44 to drive the second load loader 44 to reciprocate along the second direction. The second load loader 44 is used to resist the terminal 71 and output a loading force.

[0056] Specifically, the second load loader 44 is an anti-static load measuring instrument; the second movable seat 41 slides on the test bench 1 through a slide rail, and realizes automatic sliding through a telescopic driving member such as a telescopic electric cylinder; the third telescopic support frame 42 realizes telescopic movement through a telescopic driving member such as a telescopic electric cylinder or a telescopic oil cylinder; the second linear driving member 43 is a worm gear structure or a telescopic electric cylinder, etc.

[0057] In this optional embodiment, if Figure 1 and Figure 2As shown, a second movable seat 41, a third telescopic support frame 42, a second linear drive member 43 and a second load loader 44 are provided to form a second loading mechanism 4, wherein the second movable seat 41 is slidably mounted on the test bench 1, and can approach or move away from the test position 11 along the second direction, and the third telescopic support frame 42 is mounted on the second movable seat 41, and the second linear drive member 43 is mounted on the upper end of the third telescopic support frame 42, and is drivingly connected to the second load loader 44, so that the entire second loading mechanism 4 can be moved close to or away from the test position 11 by the movement of the second movable seat 41; on this basis, the third telescopic support frame 42 can reciprocate in the vertical direction, so as to adjust the height of the second load loader 44 to make it flush with the terminal 71, and the second linear drive member 43 can drive the second load loader 44 to reciprocate in the second direction, so that the second load loader 44 can be against the terminal 71 and output a loading force, thereby realizing the loading of a static load on the terminal along the second direction.

[0058] Optionally, the third loading mechanism 5 includes a third movable seat 51, a fourth telescopic support frame 52, a third linear drive member 53, a third load loader 54 and a second rotating support 55. The third movable seat 51 is slidably installed on the test bench 1, and is used to approach or move away from the test position 11 along a fourth direction. The fourth direction intersects with the first direction and the second direction, and is perpendicular to the third direction. The second rotating support 55 is rotated around the third direction and is installed on the third movable seat 51. The fourth telescopic support frame 52 is installed on the second rotating support 55 and is used to reciprocate along the third direction. The third linear drive member 53 is installed at the upper end of the fourth telescopic support frame 52 and is drivingly connected to the third load loader 54 to drive the third load loader 54 to reciprocate along the third direction. The third load loader 54 is used to resist the terminal 71 and output a loading force.

[0059] Specifically, the third load loader 54 is an anti-static load measuring instrument; the third movable seat 51 slides on the test bench 1 through a slide rail, and realizes automatic sliding through a telescopic driving component such as a telescopic electric cylinder; the fourth telescopic support frame 52 realizes telescopic movement through a telescopic driving component such as a telescopic electric cylinder or a telescopic oil cylinder; the third linear driving component 53 is a worm gear structure or a telescopic electric cylinder, etc.; the second rotating support 55 can realize self-rotation through a rotating driving component such as a rotating motor or a servo motor.

[0060] In this optional embodiment, if Figure 1 and Figure 2As shown, a third moving seat 51, a fourth telescopic support frame 52, a third linear drive member 53, a third load loader 54 and a second rotating support 55 are provided to form a third loading mechanism 5, wherein the third moving seat 51 is slidably mounted on the test bench 1, and can approach or move away from the test position 11 along a fourth direction, the fourth direction intersects with both the first direction and the second direction, and is perpendicular to the third direction, and the second rotating support 55 is mounted on the third moving seat 51, the fourth telescopic support frame 52 is mounted on the second rotating support 55, the third linear drive member 53 is mounted on the upper end of the fourth telescopic support frame 52, and is drivingly connected to the third load loader 54, so that the entire third loading mechanism 5 can be realized by the movement of the third moving seat 51 The loading mechanism 5 approaches or moves away from the test position 11; on this basis, the second rotating support 55 can rotate around the third direction, thereby driving the fourth telescopic support frame 52 to rotate, thereby adjusting the position of the third load loader 54 connected to the fourth telescopic support frame 52, so that it can correspond to the terminal 71 up and down along the third direction. At the same time, the fourth telescopic support frame 52 can reciprocate along the third direction, thereby adjusting the height of the third load loader 54 to make it close to the terminal 71, and the third linear drive member 53 can drive the third load loader 54 to reciprocate along the third direction, so that the third load loader 54 can be against the terminal 71 and output a loading force, thereby realizing the loading of a static load on the terminal along the third direction.

[0061] In a second aspect, an embodiment of the present invention further provides a method for static load testing of switch terminals. Based on the above-mentioned device for static load testing of switch terminals, the method for static load testing of switch terminals includes: S1, moving the isolating switch 7 to the test position 11 of the test bench 1 of the device for static load testing of switch terminals and fixing it by the mechanical arm 2 of the device for static load testing of switch terminals; S2, driving the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 of the device for static load testing of switch terminals to approach the test position 11, so as to counteract the terminal 71 of the isolating switch 7 and output the loading force; S3, driving the opening and closing mechanism 6 of the device for static load testing of switch terminals to connect the handle 72 of the isolating switch 7, and driving the handle 72 to open and close by the opening and closing mechanism 6; S4, driving the first loading mechanism 3, the second loading mechanism 4 and the third loading mechanism 5 to stop outputting the loading force and move away from the test position 11; S5, driving the opening and closing mechanism 6 to separate from the handle 72, driving the mechanical arm 2 to move the isolating switch 7 away from the test position 11, completing a static load test of the terminal 71, and repeating S1.

[0062] In this embodiment, Figure 3 As shown, the technical effect of the method for static load test of switch terminals in this embodiment is similar to the technical effect of the above-mentioned device for static load test of switch terminals, which will not be repeated here.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for static load testing of switch terminals, characterized in that: The invention comprises a test bench (1), a mechanical arm (2), a first loading mechanism (3), a second loading mechanism (4), a third loading mechanism (5) and an opening and closing mechanism (6); the test bench (1) is provided with a test position (11), the test position (11) is used to place an isolating switch (7); the mechanical arm (2) is used to move the isolating switch (7) to be fixed to the test position (11) or to be away from the test position (11); the first loading mechanism (3), the second loading mechanism (4) and the third loading mechanism (5) are all used to approach or be away from a terminal (71) of the isolating switch (7) on the test position (11), and to output loading forces in a first direction, a second direction and a third direction respectively, the first direction, the second direction and the third direction being perpendicular to each other; the opening and closing mechanism (6) is used to connect a handle (72) of the isolating switch (7) and drive the handle (72) to open and close.

2. The device for static load test of switch terminals according to claim 1, characterized in that: The mechanical arm (2) comprises a first rotating support (21), a first telescopic support frame (22) and a working arm (23); the first rotating support (21) is mounted on the test bench (1) and is located on one side of the test position (11); the first rotating support (21) is used to rotate about a vertical direction; the first telescopic support frame (22) is mounted on the first rotating support (21) and is used to telescope along the vertical direction; one end of the working arm (23) is mounted on the first telescopic support frame (22), and the other end is used to be detachably connected to the isolating switch (7).

3. The device for static load test of switch terminals according to claim 2, characterized in that: The working arm (23) comprises an arm (231) and a rotating disk (232), a first clamping piece (233) and a disassembling work piece (234). The arm (231) has a plurality of arms, which are arranged in sequence. Two adjacent arms (231) are hinged about a horizontal direction and are used to rotate with each other. One end of a structure formed by hinged connection of the plurality of arms (231) is hinged about the horizontal direction to an upper end of the first telescopic support frame (22), and the other end is connected to the rotating disk (232). The rotating disk (232) is used to rotate. The first clamping piece (233) and the disassembling work piece (234) are distributed at intervals along the edge of the rotating disk (232). The first clamping piece (233) is used to clamp the disconnector (7) and a pressure block (73) used to fix the disconnector (7). The disassembling work piece (234) is used to install or disassemble the fixed pressure block (73).

4. The device for static load test of switch terminals according to claim 1, characterized in that: The opening and closing mechanism (6) comprises a bracket (61) and a telescopic rod (62); the bracket (61) is mounted on the test bench (1) and is located on one side of the test position (11); one end of the telescopic rod (62) is mounted on the bracket (61), and the other end is used to move closer to or farther away from the handle (72) and is used to be detachably connected to the handle (72).

5. The device for static load test of switch terminals according to claim 4, characterized in that: One end of the telescopic rod (62) is rotatably connected to the bracket (61) and is used to rotate in a horizontal direction so that the other end of the telescopic rod (62) moves in a vertical direction. The other end of the telescopic rod (62) is provided with a second clamping member (621), and the second clamping member (621) is used to clamp the handle (72).

6. The device for static load test of switch terminals according to claim 1, characterized in that: The test bench (1) is provided with a lifting support (12) and a sensor (13); the lifting support (12) is used for reciprocating along the vertical direction; the test position (11) is located on the upper end surface of the lifting support (12); and the sensor (13) is located on one side of the lifting support (12) and is used for being arranged toward the test position (11).

7. The device for static load test of switch terminals according to claim 1, characterized in that: The first loading mechanism (3) comprises a first movable seat (31), a second telescopic support frame (32), a first linear driving member (33) and a first load loader (34); the first movable seat (31) is slidably mounted on the test bench (1) and is used to approach or move away from the test position (11) along the first direction; the second telescopic support frame (32) is mounted on the first movable seat (31) and is used to reciprocate along the vertical direction; the first linear driving member (33) is mounted on the upper end of the second telescopic support frame (32) and is drivingly connected to the first load loader (34) to drive the first load loader (34) to reciprocate along the first direction; the first load loader (34) is used to abut against the terminal (71) and output the loading force.

8. The device for static load test of switch terminals according to claim 7, characterized in that: The second loading mechanism (4) comprises a second movable seat (41), a third telescopic support frame (42), a second linear drive member (43) and a second load loader (44); the second movable seat (41) is slidably mounted on the test bench (1) and is used to approach or move away from the test position (11) along the second direction; the third telescopic support frame (42) is mounted on the second movable seat (41) and is used to reciprocate along the vertical direction; the second linear drive member (43) is mounted on the upper end of the third telescopic support frame (42) and is drivingly connected to the second load loader (44) to drive the second load loader (44) to reciprocate along the second direction; the second load loader (44) is used to abut against the terminal (71) and output the loading force.

9. The device for static load test of switch terminals according to claim 8, characterized in that: The third loading mechanism (5) comprises a third movable seat (51), a fourth telescopic support frame (52), a third linear drive member (53), a third load loader (54) and a second rotating support (55); the third movable seat (51) is slidably mounted on the test bench (1) and is used to approach or move away from the test position (11) along a fourth direction, the fourth direction intersecting both the first direction and the second direction and being perpendicular to the third direction; the second rotating support (55) is rotatably mounted on the third movable seat (51) around the third direction; the fourth telescopic support frame (52) is mounted on the second rotating support (55) and is used to reciprocate along the third direction; the third linear drive member (53) is mounted on the upper end of the fourth telescopic support frame (52) and is drivingly connected to the third load loader (54) to drive the third load loader (54) to reciprocate along the third direction; the third load loader (54) is used to abut against the terminal (71) and output the loading force.

10. A method for static load testing of switch terminals, characterized in that: Based on the device for static load test of switch terminals according to any one of claims 1 to 9, the method for static load test of switch terminals comprises: S1. Using the mechanical arm (2) of the device for static load test of switch terminals, the isolating switch (7) is moved to the test position (11) of the test bench (1) of the device for static load test of switch terminals and fixed; S2, driving the first loading mechanism (3), the second loading mechanism (4) and the third loading mechanism (5) of the device for static load test of switch terminals to be close to the test position (11) so as to abut against the terminal (71) of the disconnector (7) and output a loading force; S3, driving the opening and closing mechanism (6) of the device for static load test of switch terminals to connect to the handle (72) of the disconnector (7), and driving the handle (72) to open and close through the opening and closing mechanism (6); S4, driving the first loading mechanism (3), the second loading mechanism (4) and the third loading mechanism (5) to stop outputting the loading force and move away from the test position (11); S5, drive the opening and closing mechanism (6) to separate from the handle (72), drive the mechanical arm (2) to move the isolating switch (7) away from the test position (11), complete a static load test of the terminal (71), and repeat S1.

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