An adjustable insulator contamination test device

Abstract

The present application relates to a kind of adjustable insulator foreign matter invasion test device, including test table and being located on test table foreign matter support device, for pushing foreign matter support device to move pushing device, for the slide rail of foreign matter support device guiding, for fixing the position of foreign matter support device baffle assembly, the bottom of the foreign matter support device can be moved and is located on slide rail, the starting end of the pushing device is located on slide rail, the output end of the pushing device pushes the foreign matter support device and moves along slide rail, makes the foreign matter support device and baffle assembly contact touch.Compared with prior art, the present application can be used for different voltage grade insulator, can control the distance between foreign matter and insulator, facilitate to change the length and spatial position of foreign matter, can simulate the real process that foreign matter approaches insulator, etc.Advantages, realize insulator foreign matter proximity and contact test.

Description

Technical Field

[0001] This invention relates to the field of external insulation of electrical equipment, and in particular to an adjustable insulator foreign object intrusion test device. Background Technology

[0002] Insulators are a crucial component of power systems, and during operation, they are frequently subjected to damage from foreign objects such as birds, metal wires, and graphite fibers. Simulating foreign object damage tests on insulators allows for observation of the insulation failure process and verification of its principles, providing a reference for insulator protection strategies. Traditional insulator foreign object damage tests involve fixing the foreign object and then using a uniform voltage increase method. This not only makes it inconvenient to replace the foreign object but also differs significantly from the actual foreign object damage encountered by insulators during operation. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the prior art and provide an adjustable insulator foreign object intrusion test device.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] An adjustable insulator foreign object intrusion test device includes a test bench and a foreign object support device disposed on the test bench, a pushing device for moving the foreign object support device, a slide rail for guiding the foreign object support device, and a baffle assembly for fixing the position of the foreign object support device. The bottom of the foreign object support device is movably disposed on the slide rail. The pushing device is disposed at the starting end of the slide rail. The output end of the pushing device pushes the foreign object support device to move along the slide rail, so that the foreign object support device contacts the baffle assembly.

[0006] Preferably, the foreign object support device includes a sliding base, a lifting rod, an upper insulating clamp and a lower insulating clamp for supporting the foreign object. The bottom of the sliding base is provided with a sliding groove that matches the shape of the slide rail. The lifting rod is vertically mounted on the sliding base. The upper insulating clamp is located on the side of the top of the lifting rod, and the lower insulating clamp is located on the side of the bottom of the lifting rod.

[0007] Preferably, the lifting rod includes a lower sleeve, a middle sleeve, and an upper sleeve. The lower sleeve is fixedly mounted on the sliding base. The middle sleeve is movably inserted into the middle of the lower sleeve. The upper sleeve is movably inserted into the middle of the middle sleeve. The upper insulation is clamped on the side of the upper sleeve, and the lower insulation is clamped on the side of the lower sleeve.

[0008] Preferably, the foreign object support device further includes an insulating skirt, which is fitted around the periphery of the lower sleeve and is located below the lower insulating clamp.

[0009] Preferably, the pushing device includes a spring frame and a pushing spring, the front side of the spring frame has a keyhole, and the rear bottom of the foreign object support device has a latch that matches the shape of the keyhole.

[0010] When the latch is locked to the keyhole, one end of the push spring is fixedly connected to the spring frame, and the other end moves forward to touch the rear side of the foreign object support device. When the latch is separated from the keyhole, one end of the push spring is fixedly connected to the spring frame, and the other end extends forward out of the spring frame.

[0011] Preferably, the baffle assembly includes a limiting baffle and a baffle fixing plate. The baffle fixing plate is arranged parallel to and spaced apart from the slide rail. The limiting baffle is detachably mounted on the baffle fixing plate and is located between the baffle fixing plate and the slide rail.

[0012] Preferably, the foreign object support device is provided with a first magnetic suction member on the front side, and the limiting baffle is provided with a second magnetic suction member on the rear side that matches the position of the first magnetic suction member. After the foreign object support device comes into contact with the limiting baffle, the first magnetic suction member and the second magnetic suction member are magnetically connected.

[0013] Preferably, the baffle fixing plate has multiple connecting holes, and the limiting baffle is detachably fixed to the baffle fixing plate through bolts and connecting holes.

[0014] Preferably, the slide rail is equipped with a scale.

[0015] Preferably, the test bench includes a tabletop and multiple height-adjustable table legs fixed to the bottom of the tabletop.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1) The test device of the present invention can effectively simulate the real process of foreign objects approaching insulators by using the foreign object support device, the pushing device and the slide rail and baffle assembly to work together. The test has high reliability and accuracy and can be used for foreign object proximity and contact insulator tests on insulators of different voltage levels.

[0018] 2) The foreign object support device of the present invention can adjust the length and spatial position of the foreign object, effectively fix the foreign object, and the foreign object support device has good insulation performance, which can protect the device of the present invention from being broken down during the test and ensure the safety of the test.

[0019] 3) The slide rail of the present invention is equipped with a scale, which facilitates the measurement and control of the distance between foreign objects and insulators, facilitates operation and recording, and improves the accuracy of the test. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the device of the present invention.

[0021] Figure 2 This is a schematic diagram of the foreign object support device in the apparatus of the present invention.

[0022] Figure 3 This is a schematic diagram of the pushing device in the apparatus of the present invention.

[0023] 1. Test bench; 2. Foreign object support device; 3. Pushing device; 4. Baffle assembly; 5. Slide rail; 101. Tabletop; 102. Height-adjustable table legs; 201. Sliding base; 202. Lower sleeve; 203. Middle sleeve; 204. Upper sleeve; 205. Upper insulating clamp; 206. Lock; 207. First magnetic attraction component; 208. Lower insulating clamp; 209. Insulating umbrella skirt; 301. Spring frame; 302. Push spring; 303. Keyhole; 401. Baffle fixing plate; 402. Limiting baffle; 403. Second magnetic attraction component. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Note that the following description of the embodiments is merely illustrative and is not intended to limit its applicability or use, nor is the present invention limited to the following embodiments.

[0025] Example

[0026] An adjustable insulator foreign object intrusion testing device, such as Figures 1-3 As shown, the test bench includes a test bench 1 and a foreign object support device 2 mounted on the test bench 1, a pushing device 3 for moving the foreign object support device 2, a slide rail 5 for guiding the foreign object support device 2, and a baffle assembly 4 for fixing the position of the foreign object support device 2. The bottom of the foreign object support device 2 is movably mounted on the slide rail 5. The pushing device 3 is located at the starting end of the slide rail 5. The output end of the pushing device 3 pushes the foreign object support device 2 to move along the slide rail 5, causing the foreign object support device 2 to contact the baffle assembly 4. The slide rail 5 is equipped with a scale to facilitate the measurement and control of the distance between the foreign object and the insulator. The test bench 1 includes a tabletop 101 and four height-adjustable table legs 102 fixed to the bottom of the tabletop 101. By adjusting the height of the tabletop 101, it can be used for foreign object proximity and contact insulator tests on insulators of different voltage levels. In this embodiment, the foreign object is graphite fiber filaments, metal wires, or other foreign objects commonly found in insulator damage.

[0027] In this embodiment, to achieve effective support and height adjustment for foreign objects, the foreign object support device 2 includes a sliding base 201, a lifting rod, an insulating skirt 209, an upper insulating clamp 205 and a lower insulating clamp 208 for supporting foreign objects. Both the upper and lower insulating clamps 205 and 208 are made of plastic. The bottom of the sliding base 201 has a groove that matches the shape of the slide rail 5. The lifting rod includes a lower sleeve 202, a middle sleeve 203, and an upper sleeve 204, forming a three-section stretchable structure capable of fixing foreign objects with a length range of 0-600 mm. The lower sleeve 202 is fixedly mounted on the sliding base 201, the middle sleeve 203 is movably inserted into the middle of the lower sleeve 202, and the upper sleeve 204 is movably inserted into the middle of the middle sleeve 203. The upper insulating clamp 205 is located on the side of the upper sleeve 204, and the lower insulating clamp 208 is located on the side of the lower sleeve 202. Insulating skirts 209 are fitted around the lower sleeve 202, and are located below the lower insulating clamp 208. For ease of clamping, in this embodiment, both the upper insulating clamp 205 and the lower insulating clamp 208 are connected to the lifting rod via connecting rods. In this embodiment, the foreign object support device 2 is made of silicone rubber and features three insulating skirts 209 to increase the creepage distance and ensure the insulation performance and test safety of the foreign object support device 2. The top and bottom ends of the foreign object, such as graphite fiber filaments, are connected to the upper insulating clamp 205 and the lower insulating clamp 208, respectively.

[0028] In addition, to achieve controllable pushing of the foreign object support device 2 and simulate the process of a foreign object approaching an insulator, the pushing device 3 includes a spring frame 301 and a pushing spring 302. A keyhole 303 is provided on the front side of the spring frame 301, and a latch 206, matching the shape of the keyhole 303, is provided on the rear bottom of the foreign object support device 2. When the latch 206 is locked to the keyhole 303, one end of the pushing spring 302 is fixedly connected to the spring frame 301, and the other end moves forward to contact the rear side of the foreign object support device 2. When the latch 206 separates from the keyhole 303, one end of the pushing spring 302 is fixedly connected to the spring frame 301, and the other end extends forward out of the spring frame 301. The latch 206 is a controllable switch latch 206. In use, the foreign object support device 2 is pushed along the slide rail 5 towards the spring frame 301, compressing the spring until the latch 206 is inserted into the keyhole 303, thus locking it in place. When pushing is required, the control latch 206 is released, the spring extends and pushes out the foreign object support device 2, causing the foreign object support device 2 to slide along the slide rail 5. In this embodiment, the direction toward the end of the slide rail 5 is the front side, and the opposite direction is the rear side. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the device of the present invention and simplifying the description, and is not intended to indicate or imply that the component or structure referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the device of the present invention.

[0029] To adjust the position of the foreign object's end, the baffle assembly 4 includes a limiting baffle 402 and a baffle fixing plate 401. The baffle fixing plate 401 is arranged parallel to and spaced apart from the slide rail 5. The limiting baffle 402 is detachably mounted on the baffle fixing plate 401 and is located between the baffle fixing plate 401 and the slide rail 5. A first magnetic suction member 207 is provided on the front side of the foreign object support device 2, and a second magnetic suction member 403, matching the position of the first magnetic suction member 207, is provided on the rear side of the limiting baffle 402. After the foreign object support device 2 contacts the limiting baffle 402, the first magnetic suction member 207 and the second magnetic suction member 403 are magnetically connected. Multiple connection holes are provided on the baffle fixing plate 401, and the limiting baffle 402 is detachably and fixedly connected to the baffle fixing plate 401 via bolts and connection holes. Connection holes are provided on the baffle fixing plate 401 every 3 cm to facilitate installation.

[0030] When in use, when the foreign object support device 2 touches the limiting baffle 402 during its movement toward the insulator, the first magnetic attractor 207 and the second magnetic attractor 403 are magnetically connected to prevent the foreign object support device 2 from rebounding.

[0031] In practical use, a platform for fixing insulators is placed on the rear side of the test bench 1. During use, the latch 206 of the foreign object support device 2 and the latch 206 of the pushing device 3 are locked together. During testing, the latch 206 is released, allowing the foreign object support device 2 to be pushed by the spring and move along the slide rail 5 until the sliding base 201 contacts and engages with the limiting baffle 402.

[0032] The above embodiments are merely illustrative and do not constitute a limitation on the scope of the present invention. These embodiments can also be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the technical spirit of the present invention.

Claims

1. An adjustable insulator foreign object intrusion test device, characterized in that, The device includes a test bench (1) and a foreign object support device (2) mounted on the test bench (1), a pushing device (3) for moving the foreign object support device (2), a slide rail (5) for guiding the foreign object support device (2), and a baffle assembly (4) for fixing the position of the foreign object support device (2). The bottom of the foreign object support device (2) is movably mounted on the slide rail (5). The pushing device (3) is mounted at the starting end of the slide rail (5). The output end of the pushing device (3) pushes the foreign object support device (2) to move along the slide rail (5) so that the foreign object support device (2) contacts the baffle assembly (4). The pushing device (3) includes a spring frame (301) and a pushing spring (302). The front side of the spring frame (301) is provided with a keyhole (303). The bottom rear side of the foreign object support device (2) is provided with a latch (206) that matches the shape of the keyhole (303). When the latch (206) is locked to the keyhole (303), one end of the push spring (302) is fixedly connected to the spring frame (301), and the other end moves forward to touch the rear side of the foreign object support device (2). When the latch (206) is separated from the keyhole (303), one end of the push spring (302) is fixedly connected to the spring frame (301), and the other end extends forward out of the spring frame (301). The baffle assembly (4) includes a limiting baffle (402) and a baffle fixing plate (401). The baffle fixing plate (401) is arranged parallel to and spaced apart from the slide rail (5). The limiting baffle (402) is detachably mounted on the baffle fixing plate (401). The limiting baffle (402) is located between the baffle fixing plate (401) and the slide rail (5). The foreign object support device (2) is provided with a first magnetic suction member (207) on the front side, and the limiting baffle (402) is provided with a second magnetic suction member (403) on the rear side that matches the position of the first magnetic suction member (207). After the foreign object support device (2) touches the limiting baffle (402), the first magnetic suction member (207) and the second magnetic suction member (403) are magnetically connected.

2. The adjustable insulator foreign object intrusion test device according to claim 1, characterized in that, The foreign object support device (2) includes a sliding base (201), a lifting rod, an upper insulating clamp (205) and a lower insulating clamp (208) for supporting foreign objects. The bottom of the sliding base (201) is provided with a sliding groove that matches the shape of the slide rail (5). The lifting rod is vertically mounted on the sliding base (201). The upper insulating clamp (205) is located on the side of the top of the lifting rod, and the lower insulating clamp (208) is located on the side of the bottom of the lifting rod.

3. The adjustable insulator foreign object intrusion test device according to claim 2, characterized in that, The lifting rod includes a lower sleeve (202), a middle sleeve (203), and an upper sleeve (204). The lower sleeve (202) is fixedly mounted on the sliding base (201). The middle sleeve (203) is movably inserted into the middle of the lower sleeve (202). The upper sleeve (204) is movably inserted into the middle of the middle sleeve (203). The upper insulating clamp (205) is located on the side of the upper sleeve (204), and the lower insulating clamp (208) is located on the side of the lower sleeve (202).

4. The adjustable insulator foreign object intrusion test device according to claim 3, characterized in that, The foreign object support device (2) further includes an insulating skirt (209), which is fitted around the lower sleeve (202) and is located below the lower insulating clamp (208).

5. The adjustable insulator foreign object intrusion test device according to claim 1, characterized in that, The baffle fixing plate (401) is provided with multiple connecting holes, and the limiting baffle (402) is detachably and fixedly connected to the baffle fixing plate (401) by bolts and connecting holes.

6. The adjustable insulator foreign object intrusion test device according to claim 1, characterized in that, The slide rail (5) is equipped with a scale.

7. The adjustable insulator foreign object intrusion test device according to claim 1, characterized in that, The test bench (1) includes a tabletop (101) and multiple height-adjustable table legs (102) fixedly installed at the bottom of the tabletop (101).

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