Transformer insulation withstand voltage detection device and withstand voltage detection method

Abstract

The present invention provides a transformer insulation withstand voltage detection device and withstand voltage detection method, which belongs to the field of transformer detection technology, including a frame, a loading area and a detection area are arranged on the frame, a mobile frame is arranged on the loading area, a driving member for transporting the mobile frame from the loading area to the detection area is arranged on the frame, a support frame is placed on the mobile frame, a moving ball is assembled on the lower surface of the support frame, a support column is fixedly assembled on the top of the support frame, a friction block is fixedly connected on the upper surface of the support column, a support plate for supporting the transformer is sleeved on the side wall of the support column, and a shock absorbing spring is assembled between the support plate and the support frame; two adjusting members for adjusting the position of the transformer are arranged on the mobile frame, the adjusting member includes a linear driving member and an adjusting plate, and the linear driving member can drive the adjusting plate to move in the front and rear directions. The present invention has the effect of protecting the surface quality of the transformer and improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer detection, and in particular to a transformer insulation withstand voltage detection device and a withstand voltage detection method. Background Art

[0002] A transformer is an electrical device used to convert alternating current between different voltage levels. It is widely used in power systems to improve the efficiency and safety of power transmission. Withstand voltage testing is an important test performed on transformers to ensure that the transformer can withstand a certain voltage without insulation breakdown or other failures under normal working conditions.

[0003] When conducting a withstand voltage test on a transformer, ensure that the transformer is in a power-off state and is grounded; then connect the output end of the high-voltage test equipment to the high-voltage winding of the transformer and ground the low-voltage winding; then start the test equipment, gradually increase the voltage to the set value, and observe the readings of the test equipment to ensure that there is no breakdown or abnormality.

[0004] There are devices for testing transformers in the prior art, such as the Chinese patent application document with publication number CN115774171A, which discloses a transformer withstand voltage testing device, which includes a conveying mechanism for transporting the transformer. Workbenches are provided on both sides of the conveying mechanism. The transformer is transported by the conveying mechanism. As the transformer moves, the transformer is abutted against the positioning plate, and the side wall of the transformer is fitted with the positioning plate under the action of the conveying mechanism.

[0005] With respect to the above-mentioned related technologies, after the transformer abuts against the positioning plate, it gradually fits with the positioning plate under the action of the conveyor belt, which causes the conveying mechanism to produce friction on the transformer during this process, thereby causing certain wear on the transformer. In addition, positioning the transformer when conveying it to the detection position is not conducive to improving work efficiency. Summary of the invention

[0006] In view of this, the present invention provides a transformer insulation withstand voltage detection device and a withstand voltage detection method, aiming to solve the problems of transformer wear and low detection efficiency during positioning.

[0007] In order to solve the above technical problems, in the first aspect, the present invention provides a transformer insulation withstand voltage detection device and a withstand voltage detection method, comprising a frame one, wherein the frame one is provided with a loading area and a detection area, wherein the loading area is provided with a moving frame, and the frame one is provided with a driving member one for transporting the moving frame from the loading area to the detection area;

[0008] A support frame is placed on the mobile frame, a moving ball is installed on the lower surface of the support frame, a reset spring is connected between the support frame and the mobile frame, a support column is fixedly installed on the top of the support frame, a friction block is fixedly connected to the upper surface of the support column, a support plate for supporting the transformer is sleeved on the side wall of the support column, the upper surface of the support plate is set as a rough surface, and a shock-absorbing spring is installed between the support plate and the support frame;

[0009] The movable frame is provided with two adjusting members for adjusting the position of the transformer, the adjusting members include a linear driving member and an adjusting plate, the linear driving member is installed on the front and rear sides of the movable frame, the adjusting plate is connected to the driving shaft of the linear driving member, and the linear driving member can drive the adjusting plate to move in the front and rear directions.

[0010] By adopting the above technical solution, the transformer is placed on the support plate, and the support plate is pressed downward under the action of the transformer's own gravity so that the support column abuts against the transformer, thereby making the position of the transformer and the support frame relatively fixed. In the process of transporting the transformer to the detection area, the adjustment plate moves and pushes the transformer and the support frame to move, and then gradually changes the position of the transformer and arranges the high-voltage bushing of the transformer in the left and right directions. In the process of adjusting the position of the transformer, the wear of the transformer can be reduced through the joint movement of the transformer and the support frame, and adjustments are made during the process of transporting the transformer to the detection area, which is conducive to improving work efficiency.

[0011] Optionally, the detection area is provided with three test columns for connecting to the high-voltage bushing of the transformer, and frame 2 is provided with a driving component 2 for driving the test column to move up and down, and docking mechanism 1, docking mechanism 2 and docking mechanism 3 are provided below driving component 2 for connecting the test column to the high-voltage bushing of the transformer.

[0012] By adopting the above technical solution, the settings of docking mechanism 1, docking mechanism 2 and docking mechanism 3 can enable the transformer to automatically connect the test column with the high-voltage bushing during movement, and for transformers with different high-voltage bushing spacings, it can also automatically adapt to connect the high-voltage bushing with the test column, so as to facilitate subsequent testing, thereby helping to improve work efficiency.

[0013] Optionally, the driving component 2 includes a frame 2, a linear driving component 2 and a connecting plate, the frame 2 is fixedly connected to the frame 1 located in the detection area, the linear driving component 2 is installed on the frame 2 and the piston rod of the linear driving component 2 extends up and down, the connecting plate is connected to the end of the driving rod of the linear driving component 2, and the test column is arranged below the connecting plate.

[0014] By adopting the above technical solution, the driving member can drive the test column to move in the vertical direction, so as to facilitate the connection between the test column and the high-voltage bushing of the transformer.

[0015] Optionally, the docking mechanism includes a movable plate, a shell, a push plate and a hydraulic pipeline. The movable plate is arranged below the connecting plate and can slide in the left and right directions. The shell is fixedly connected to the lower surface of the movable plate. The push plate is slidably assembled in the shell. The high-voltage bushing on the far right of the transformer can push the push plate to move to the right. The test column on the far right is slidably assembled in the hydraulic pipeline. The high-voltage bushing on the far right of the transformer pushes the push plate to move to the right. The test column moves downward and is connected to the high-voltage bushing of the transformer.

[0016] By adopting the above technical solution, when the transformer is moving, the high-voltage bushing on the far right of the transformer abuts against and pushes the push plate 1 to move, and under the action of the hydraulic pipeline 1, the test column moves downward and is connected to the high-voltage bushing.

[0017] Optionally, docking mechanism two includes movable plate two, shell two, push plate two, hydraulic pipeline two, clamping block one and clamping strip one, movable plate one is slidably assembled on the lower surface of movable plate two, and hydraulic pipeline one extends into movable plate two through movable plate one, shell two is slidably assembled on the end of hydraulic pipeline one, push plate two is slidably assembled in shell two, a test column located in the middle is slidably assembled in hydraulic pipeline two up and down, clamping block one is located on the upper part of hydraulic pipeline two, hydraulic pipeline two is located in movable plate two, clamping strip one is fixedly connected to the upper surface of movable plate one and extends out of movable plate one, when the high-voltage bushing in the middle of the transformer pushes push plate two to slide, the test column located in the middle moves downward, and clamping block one moves upward and clamps with clamping strip one.

[0018] By adopting the above technical solution, the shell 2 is moved down through the hydraulic pipeline, and then the high-voltage bushing in the middle of the transformer abuts against the push plate 2 and pushes the push plate 2 to move. Under the action of the hydraulic pipeline 2, the test column moves down and connects with the high-voltage bushing. At the same time, under the action of the hydraulic pipeline 2, the clamping block 1 moves up and clamps with the clamping strip 1. At this time, the positions of the moving plate 1 and the moving plate 2 are relatively static, and the transformer can drive the moving plate 1 and the moving plate 2 to move together during the movement.

[0019] Optionally, the docking mechanism three includes a movable plate three, a shell three, a push plate three, a hydraulic pipeline three, a clamping block two and a clamping strip two. The movable plate three is slidably assembled on the lower surface of the connecting plate, the shell three is slidably assembled on the end of the hydraulic pipeline two, the push plate three is slidably assembled in the shell, the hydraulic pipeline three is arranged on the movable plate three, the clamping block two is slidably assembled on the upper part of the hydraulic pipeline three, the clamping strip two is fixedly connected to the upper surface of the movable plate two and extends out of the movable plate two. When the high-voltage bushing on the far left of the transformer pushes the push plate three to slide, the test column located on the far left of the connecting plate moves downward, and the clamping block two is clamped with the clamping strip two.

[0020] By adopting the above technical solution, shell three moves downward under the action of hydraulic pipeline two, and as the transformer moves, the high-voltage bushing on the far left of the transformer abuts against and pushes push plate three to move, and then the test column is moved downward and connected to the high-voltage bushing through hydraulic pipeline three, and at the same time, the clamping block two is moved upward and clamped with the clamping strip three through hydraulic pipeline three. At this time, the moving plate one, the moving plate two and the moving plate three form a whole and move with the transformer.

[0021] Optionally, the driving member includes a rotation source, a rotating screw and a guide rod, the rotation source is mounted on a frame, the rotating screw is connected to the end of the output shaft of the rotation source and extends in the left and right directions, the movable frame is threadedly connected to the rotating screw, the guide rod is fixedly connected to the frame and extends in the left and right directions, and the guide rod is passed through the movable frame.

[0022] By adopting the above technical solution, starting the rotation source can drive the rotating screw to rotate, and as the rotating screw rotates, the movable frame can move in the left and right directions, thereby realizing the movement of the transformer.

[0023] Optionally, the movable plate 2 and the movable plate 3 are both provided with a return spring 2 extending in the left-right direction.

[0024] By adopting the above technical solution, after the detection is completed, the transformer returns to the loading area, and the movable plate 2 and the movable plate 3 are restored to the initial state under the action of the reset spring 2 to facilitate the next detection.

[0025] Optionally, a return spring three extending in the left-right direction is provided in the shell one, the shell two and the shell three.

[0026] By adopting the above technical solution, the setting of the reset spring three facilitates the reset of the push plate one, the push plate two and the push plate three.

[0027] In a second aspect, the present invention provides a transformer insulation withstand voltage detection method, which is applied to the transformer insulation withstand voltage detection device in the first aspect, and the method is:

[0028] S1, first place the transformer that needs to be subjected to the withstand voltage test on the support plate, the transformer presses the support plate downward and makes the friction block on the support column contact with the bottom of the transformer;

[0029] S2, start the linear drive member to drive the adjustment plates to move closer to each other, and after the adjustment plates abut against the transformer, they push the transformer and the support frame to move, so that the three high-voltage bushings of the transformer are arranged in the left-right direction;

[0030] S3, starting the rotation source to drive the rotating screw to rotate so that the moving frame moves from the loading area to the detection area;

[0031] S4, as the transformer moves, the test pole is gradually connected to the high-voltage bushing on the transformer, and finally the transformer is tested.

[0032] By adopting the above technical solution, the position of the transformer is adjusted during the process of transporting the transformer to the detection area, which is beneficial to improving work efficiency. When adjusting the position of the transformer, moving the support frame is beneficial to protecting the surface quality of the transformer, and high-voltage bushings with different spacings can be adapted to improve detection efficiency.

[0033] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0034] 1. When adjusting the position of the transformer, the surface quality of the transformer can be protected by moving the transformer and the support frame synchronously, and the position of the transformer can be adjusted during the process of transporting the transformer to the inspection area, which is conducive to improving the inspection efficiency.

[0035] 2. By setting the docking mechanism 1, the docking mechanism 2 and the docking mechanism 3, the test column can be connected to the high-voltage bushing of the transformer one by one during the movement of the transformer, thereby improving the efficiency and being able to connect transformers with high-voltage bushings of different spacings, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 It is a schematic diagram of the structure of the mobile frame and the supporting frame assembly in the present invention;

[0038] Figure 3 It is a structural schematic diagram of the assembly of the support plate and the support column in the present invention;

[0039] Figure 4 It is a cross-sectional view of the movable frame and the supporting frame in the present invention;

[0040] Figure 5 It is a schematic diagram of the structure of the assembly of the moving plate 1, the moving plate 2 and the moving plate 3 in the present invention;

[0041] Figure 6 It is a schematic diagram of the structure of the assembly of the moving plate 1 and the shell 1 in the present invention;

[0042] Figure 7 It is a structural schematic diagram of the assembly of the second movable plate and the second housing in the present invention;

[0043] Figure 8 It is a structural schematic diagram of the assembly of the clamping block 1 and the clamping strip 1 in the present invention;

[0044] Fig. 9It is a schematic diagram of the structure of the assembly of the moving plate 3 and the shell 3 in the present invention;

[0045] Fig.10 for Figure 8 A partial enlarged view of the middle area A;

[0046] Fig.11 It is a schematic structural diagram of the return spring three in the present invention.

[0047] Explanation of reference numerals: 1, frame 1; 11, loading area; 12, testing area; 13, moving frame; 2, driving member 1; 21, rotating source; 22, rotating lead screw; 23, guide rod; 3, supporting frame; 31, moving ball; 32, supporting column; 321, friction block; 33, supporting plate; 34, shock-absorbing spring; 35, reset spring 1; 4, adjusting member; 41, linear driving member 1; 42, adjusting plate; 5, testing column; 6, driving member 2; 61, frame 2; 62, linear driving member 2; 63, connecting rod Connecting plate; 7, docking mechanism one; 71, moving plate one; 72, shell one; 73, push plate one; 731, return spring three; 74, hydraulic pipeline one; 8, docking mechanism two; 81, moving plate two; 82, shell two; 83, push plate two; 84, hydraulic pipeline two; 85, clamping block one; 86, clamping strip one; 9, docking mechanism three; 91, moving plate three; 911, return spring two; 92, shell three; 93, push plate three; 94, hydraulic pipeline three; 95, clamping block two; 96, clamping strip two. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 11 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0049] In a first aspect, the present invention provides a transformer insulation withstand voltage detection device.

[0050] Reference Figure 1 The transformer insulation withstand voltage detection device includes a frame 1 placed on a horizontal plane, a loading area 11 and a detection area 12 arranged on the frame 1, a frame 2 61 connected to the frame 1, a moving frame 13 arranged on the frame 1, and an adjusting member 4 for adjusting the position of the transformer.

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4, the frame 1 is overall similar to a rectangular parallelepiped. In this embodiment, for the convenience of description, the length direction of the frame 1 is defined as the left-right direction, the width direction is the front-back direction, and the height direction is the up-down direction. The frame 1 extends in the left-right direction, the loading area 11 is arranged at the leftmost side of the frame 1, the detection area 12 is arranged at the rightmost side of the frame 1, the frame 2 61 is arranged in the detection area 12 and extends in the up-down direction, the moving frame 13 is set in a rectangular parallelepiped shape, and a cavity is opened on the upper surface of the moving frame 13, and a support frame 3 is arranged in the cavity on the upper surface of the moving frame 13. A plurality of moving balls 31 are connected to the lower surface of the support frame 3 so that the support frame 3 can move in any direction. A plurality of return springs 35 extending in the left-right direction are arranged between the support frame 3 and the moving frame 13 so that the support frame 3 In order to reset the transformer, the upper surface of the support frame 3 is fixedly connected with a support column 32 extending in the up-down direction, the top of the support column 32 is fixedly connected with a friction block 321, and the outer wall of the support column 32 is provided with a support plate 33 slidably assembled with the support column 32 in the up-down direction, the support plate 33 is used to support the transformer and the upper surface of the support plate 33 is set as a rough surface, and a shock-absorbing spring 34 is provided between the support plate 33 and the support frame 3. When the transformer is placed on the support plate 33, the support plate 33 moves downward under the action of the transformer's own gravity, and then the bottom of the transformer abuts against the support column 32, and the rough surface on the upper surface of the support plate 33 and the friction block 321 on the upper surface of the support column 32 are provided, so that the support frame 3 and the transformer can be integrated and move together during the movement of the transformer.

[0052] Reference Figure 1 , a driving member 2 for conveying the mobile frame 13 from the loading area 11 to the detection area 12 is provided on the frame 1, and the driving member 2 includes a rotation source 21, a rotating screw 22 and a guide rod 23. The rotation source 21 is installed on the leftmost side of the frame 1. In this embodiment, the rotation source 21 is a motor. In other embodiments, the rotation source 21 can also be a device whose drive shaft can realize rotation, such as a rotating cylinder or a motor. The rotating screw 22 is connected to the drive shaft of the rotation source 21 and extends in the left-right direction. The guide rod 23 is fixedly connected to the frame 1 and extends in the left-right direction. The guide rod 23 is penetrated by the mobile frame 13. In other embodiments, the driving member 2 can also be set to a form in which the cylinder pushes the mobile frame 13 to move to realize the movement of the mobile frame 13.

[0053] Reference Figure 1 and Figure 2The adjusting member 4 includes a linear driving member 41 and an adjusting plate 42. Four linear driving members 41 are provided and two are respectively installed on the front and rear sides of the movable frame 13. The driving shaft of the linear driving member 41 extends along the front and rear directions. In this embodiment, the linear driving member 41 is a cylinder. In other embodiments, the linear driving member 41 can also be a device such as a hydraulic cylinder or an electric push rod whose driving shaft can achieve linear movement; the adjusting plate 42 is connected to the driving shaft of the linear driving member. The adjusting plate 42 is set to a rectangular parallelepiped and extends along the left and right directions. If the transformer is placed on the support plate 33 and is offset, the position of the transformer can be adjusted by pushing the transformer and the support frame 3 to move through the adjusting plate 42 so that the high-voltage bushing of the transformer is arranged along the left and right directions.

[0054] Reference Figure 1 and Figure 5 The detection area 12 is provided with three test columns 5 for connecting with the high-voltage bushing of the transformer. A driving member 2 6 for driving the test column 5 to move in the up and down directions is provided on the frame 61. A docking mechanism 1 7, a docking mechanism 2 8 and a docking mechanism 3 9 for connecting the test column 5 with the high-voltage bushing of the transformer are provided below the driving member 2 6.

[0055] Reference Figure 1 and Figure 5 , the driving member 6 includes a frame 61, a linear driving member 62 and a connecting plate 63. The frame 61 is fixedly connected to the frame 1 located in the detection area 12, and the frame 61 extends in the up-down direction. The linear driving member 62 is fixedly installed on the upper part of the frame 61, and the driving shaft of the linear driving member 62 extends in the up-down direction. In this embodiment, the linear driving member 62 is a cylinder. In other embodiments, the linear driving member 62 can also be a device whose driving shaft can achieve linear movement, such as a hydraulic cylinder or an electric push rod. The connecting plate 63 is connected to the end of the driving shaft of the linear driving member 62, and can move in the up-down direction under the action of the linear driving member 62. The test column 5 is arranged below the connecting plate 63 and extends in the up-down direction, and can move in the up-down direction driven by the connecting plate 63.

[0056] Reference Figure 1 , Figure 5 and Figure 6The docking mechanism 7 includes a moving plate 71, a shell 72, a push plate 73 and a hydraulic pipeline 74. The moving plate 71 is approximately a rectangular plate and is located on the lower right side of the connecting plate 63. The shell 72 is fixedly connected to the lower surface of the moving plate 71 and a cavity is provided inside the shell 72. Hydraulic oil is provided inside the shell 72 and in the hydraulic pipeline. The push plate 73 is slidably assembled in the cavity inside the shell 72. The hydraulic pipeline 74 is connected to the cavity inside the push plate 73. A connecting pipe 1 connected to the hydraulic pipeline 74 is fixedly connected to the lower surface of the moving plate 71. One of the test columns 5 is arranged below the moving plate 71 and extends in the up and down directions, and the test column 5 is slidably assembled inside the connecting pipe 1.

[0057] Reference Figure 1 , Figure 5 , Figure 7 and Figure 8 The docking mechanism 8 includes a moving plate 81, a shell 82, a push plate 83, a hydraulic pipeline 84, a clamping block 85 and a clamping strip 86. The moving plate 71 is slidably assembled on the lower surface of the moving plate 81, and the hydraulic pipeline 74 extends into the inside of the moving plate 81. The shell 82 is slidably assembled on the end of the hydraulic pipeline 74 in the up-down direction and a cavity is provided inside the shell 82. The push plate 83 is slidably assembled on the shell 82 in the left-right direction. The hydraulic pipeline 84 is arranged on the moving plate 81. In plate 2 81, the test column 5 located in the middle of the connecting plate 63 is slidably assembled in the hydraulic pipeline 2 84 in the up and down directions. The hydraulic pipeline 2 84 is connected to the cavity inside the shell 2 82 and is arranged on the upper surface of the shell 2 82. The upper part of the hydraulic pipeline 2 84 is provided with a clamping block 1 85 which is slidably assembled on the hydraulic pipeline 2 84 in the up and down directions. The upper surface of the movable plate 1 71 is fixedly connected with a clamping strip 1 86 which extends to the left from the movable plate 1 71. The clamping block 1 85 can be clamped with the clamping strip 1 86 when it moves upward.

[0058] Reference Figure 1 , Figure 5 , Fig. 9 and Fig.10The docking mechanism 39 includes a moving plate 391, a shell 392, a push plate 393, a hydraulic pipeline 394, a clamping block 295 and a clamping strip 296. The moving plate 391 is slidably assembled on the lower surface of the connecting plate 63 and the moving plate 281 is slidably assembled on the lower surface of the moving plate 391. The shell 392 is slidably assembled on the end of the hydraulic pipeline 284 in the up and down directions. The shell 392 is provided with a cavity inside and the hydraulic pipeline 394 is connected to the cavity of the shell 392. The push plate 393 is on the left. It is slidably assembled on the shell body three 92 in the right direction, the hydraulic pipeline three 94 is arranged on the movable plate three 91, and the test column 5 located on the leftmost side of the connecting plate 63 is slidably assembled on the end of the hydraulic pipeline three 94 in the up and down directions. The upper part of the hydraulic pipeline three 94 is provided with a clamping block two 95 which is slidably assembled on the hydraulic pipeline three 94 in the up and down directions. The upper surface of the movable plate two 81 is fixedly connected with a clamping strip two 96 which extends to the left from the movable plate two 81. When the clamping block two 95 moves upward, it is clamped with the clamping strip two 96.

[0059] Reference Figure 6 , Figure 7 , Fig. 9 ,and Fig.11 , wherein, after the second shell 82 and the third shell 92 move downward, the lower surface of the second shell 82, the lower surface of the third shell 92 and the lower surface of the first shell 72 are located on the same horizontal plane; the upper surface of the moving plate 1 71, the upper surface of the second moving plate 81 and the upper surface of the third moving plate 91 are all provided with a return spring 2 911 extending in the left-right direction, and the return spring 3 731 extending left-right is provided between the push plate 1 73 and the first shell 72, between the push plate 2 83 and the second shell 82, and between the push plate 3 93 and the third shell 92. The arrangement of the return spring 2 911 and the return spring 3 731 can reset the detection after completion, so as to facilitate the next detection.

[0060] When the transformer is moving, the high-voltage bushing of the transformer abuts against the push plate 1 73 and pushes the push plate 1 73 to move to the right, and then the push plate 1 73 pushes the hydraulic oil to flow, and the hydraulic oil flows in the hydraulic pipeline 1 74 and pushes the test column 5 to move downward, so that it is connected to the high-voltage bushing of the transformer; at the same time, as the hydraulic oil flows, the shell 2 82 is pushed downward to move, and as the transformer moves, the high-voltage bushing in the middle of the transformer abuts against the push plate 2 83 and pushes the push plate 2 83 to move to the right, and then the push plate 2 83 pushes the hydraulic oil to flow, and the hydraulic oil flows in the hydraulic pipeline 2 84 and pushes the clamping block 1 85 to move upward, and the clamping block 1 85 moves upward to clamp with the clamping strip 1 86 , so that the movable plate 1 71 moves together with the movable plate 2 81; then the hydraulic oil flows in the hydraulic pipeline 2 84 and pushes the shell 3 92 to move downward. As the transformer moves, the high-voltage bushing on the far left of the transformer abuts against the push plate 3 93 and pushes the push plate 3 93 to move to the right. Then the push plate 3 93 pushes the hydraulic oil to flow. The hydraulic oil flows in the hydraulic pipeline 3 94 and pushes the test column 5 to move downward, thereby connecting it with the high-voltage bushing of the transformer. At the same time, the hydraulic oil flows in the hydraulic pipeline 3 94 and pushes the clamping block 2 95 to move upward. The clamping block 2 95 moves upward and clamps with the clamping strip 2 96, thereby forming the movable plate 1 71, the movable plate 2 81 and the movable plate 3 91 as a whole and moving together with the transformer. After the transformer stops moving, the transformer is tested.

[0061] By setting the docking mechanism 1 7, the docking mechanism 2 8 and the docking mechanism 3 9, when the spacing between the high-voltage bushings of the transformer changes due to different transformer models, it can be adapted to facilitate the connection of the high-voltage bushings of the transformer, thereby improving adaptability and facilitating the improvement of work efficiency.

[0062] The implementation principle of the transformer insulation withstand voltage detection device according to the embodiment of the present invention is as follows: first, the transformer is transported to the support plate 33 of the loading area 11. Under the action of its own gravity, the transformer presses the support plate 33 downward until the transformer abuts against the friction block 321 on the support column 32. When the position of the transformer shifts, the linear drive member 41 is started to drive the adjustment plate 42 to move. As the adjustment plate 42 moves, the adjustment plate 42 abuts against the transformer and pushes the transformer and the support frame 3 to move, so that the high-voltage bushing of the transformer is arranged in the left and right direction. At the same time, the rotation source 21 is started to drive the rotating screw 22 to rotate. The rotating screw 22 rotates to drive the movable frame 13 and the transformer to move toward the detection area 12.

[0063] Start the linear drive part 2 62 to drive the connecting plate 63 to move downward so that the high-voltage bushing of the transformer can abut against the push plate 1 73. As the transformer moves, the high-voltage bushing on the far right of the transformer abuts against the push plate 1 73, pushing the push plate 1 73 to move to the right. Then the push plate 1 73 pushes the hydraulic oil to flow. The hydraulic oil flows in the hydraulic pipeline 1 74 and pushes the test column 5 to move downward, thereby connecting it to the high-voltage bushing of the transformer.

[0064] At the same time, as the hydraulic oil flows, the shell 2 82 is pushed to move downward. As the transformer moves, the high-voltage bushing in the middle of the transformer abuts against the push plate 2 83 and pushes the push plate 2 83 to move to the right. Then the push plate 2 83 pushes the hydraulic oil to flow. The hydraulic oil flows in the hydraulic pipeline 2 84 and pushes the test column 5 to move downward, thereby connecting it with the high-voltage bushing of the transformer. The hydraulic oil flowing in the hydraulic pipeline 2 84 can push the clamping block 1 85 to move upward. The clamping block 1 85 moves upward and clamps with the clamping strip 1 86, thereby moving the moving plate 1 71 and the moving plate 2 81 move together.

[0065] Then the hydraulic oil flows in the hydraulic pipeline 2 84 and pushes the shell 3 92 to move downward. As the transformer moves, the high-voltage bushing on the far left of the transformer abuts against the push plate 3 93 and pushes the push plate 3 93 to move to the right. Then the push plate 3 93 pushes the hydraulic oil to flow. The hydraulic oil flows in the hydraulic pipeline 3 94 and pushes the test column 5 to move downward, thereby connecting it to the high-voltage bushing of the transformer. At the same time, the hydraulic oil flows in the hydraulic pipeline 3 94 and pushes the clamping block 2 95 to move upward. The clamping block 2 95 moves upward and clamps with the clamping strip 2 96, thereby forming the moving plate 1 71, the moving plate 2 81 and the moving plate 3 91 as a whole and moving with the transformer. After the transformer stops moving, the transformer is tested.

[0066] In a second aspect, the present invention provides a transformer insulation withstand voltage detection method, which is applied to the transformer insulation withstand voltage detection device in the first aspect, and the method is:

[0067] S1, firstly, place the transformer to be subjected to the withstand voltage test on the support plate 33, and the transformer presses the support plate 33 downward so that the friction block 321 on the support column 32 contacts the bottom of the transformer;

[0068] S2, start the linear drive member to drive the adjustment plates 42 to move closer to each other, and the adjustment plates 42 abut against the transformer to push the transformer and the support frame 3 to move, so that the three high-voltage bushings of the transformer are arranged in the left-right direction;

[0069] S3, start the rotation source 21 to drive the rotating screw 22 to rotate so that the moving frame 13 moves from the loading area 11 to the detection area 12;

[0070] S4, as the transformer moves, the test column 5 is gradually connected to the high-voltage bushing on the transformer, and finally the transformer is tested.

[0071] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A transformer insulation withstand voltage testing device comprises a frame 1 (1), wherein the frame 1 (1) is provided with a loading area (11) and a testing area (12), and is characterized in that: The loading area (11) is provided with a movable frame (13), and the frame (1) is provided with a driving member (2) for transporting the movable frame (13) from the loading area (11) to the detection area (12); A support frame (3) is placed on the movable frame (13), a movable ball (31) is mounted on the lower surface of the support frame (3), a return spring (35) is connected between the support frame (3) and the movable frame (13), a support column (32) is fixedly mounted on the top of the support frame (3), a friction block (321) is fixedly connected to the upper surface of the support column (32), a support plate (33) for supporting the transformer is sleeved on the side wall of the support column (32), the upper surface of the support plate (33) is set as a rough surface, and a shock-absorbing spring (34) is mounted between the support plate (33) and the support frame (3); The movable frame (13) is provided with two adjusting members (4) for adjusting the position of the transformer. The adjusting member (4) comprises a linear drive member (41) and an adjusting plate (42). The linear drive member (41) is mounted on the front and rear sides of the movable frame (13). The adjusting plate (42) is connected to a driving shaft of the linear drive member (41). The linear drive member (41) can drive the adjusting plate (42) to move in a front-rear direction.

2. The transformer insulation withstand voltage detection device according to claim 1 is characterized in that: The detection area (12) is provided with three test columns (5) for connecting to the high-voltage bushing of the transformer, a second driving member (6) for driving the test column (5) to move up and down is provided on the second frame (61), and a first docking mechanism (7), a second docking mechanism (8) and a third docking mechanism (9) for connecting the test column (5) to the high-voltage bushing of the transformer are provided below the second driving member (6).

3. The transformer insulation withstand voltage detection device according to claim 2 is characterized in that: The second driving member (6) comprises a second frame (61), a second linear driving member (62) and a connecting plate (63); the second frame (61) is fixedly connected to the first frame (1) located in the detection area (12); the second linear driving member (62) is mounted on the second frame (61) and the piston rod of the second linear driving member (62) extends up and down; the connecting plate (63) is connected to the end of the driving rod of the second linear driving member (62); and the test column (5) is arranged below the connecting plate (63).

4. The transformer insulation withstand voltage detection device according to claim 3 is characterized in that: The docking mechanism (7) comprises a movable plate (71), a shell (72), a push plate (73) and a hydraulic pipeline (74); the movable plate (71) is arranged below the connecting plate (63) and can slide in the left-right direction; the shell (72) is fixedly connected to the lower surface of the movable plate (71); the push plate (73) is slidably assembled in the shell (72); the high-voltage bushing on the far right of the transformer can push the push plate (73) to move rightward; the test column (5) on the far right is slidably assembled in the hydraulic pipeline (74); the high-voltage bushing on the far right of the transformer pushes the push plate (73) to move rightward; and the test column (5) moves downward to connect with the high-voltage bushing of the transformer.

5. The transformer insulation withstand voltage detection device according to claim 4 is characterized in that: The docking mechanism 2 (8) comprises a moving plate 2 (81), a shell 2 (82), a push plate 2 (83), a hydraulic pipeline 2 (84), a clamping block 1 (85) and a clamping strip 1 (86); the moving plate 1 (71) is slidably mounted on the lower surface of the moving plate 2 (81), and the hydraulic pipeline 1 (74) extends into the moving plate 2 (81) through the moving plate 1 (71); the shell 2 (82) is slidably mounted on the end of the hydraulic pipeline 1 (74); the push plate 2 (83) is slidably mounted in the shell 2 (82), and is located in the middle The test column (5) at the middle part is slidably assembled in the hydraulic pipeline (84) up and down, the clamping block (85) is located at the upper part of the hydraulic pipeline (84), the hydraulic pipeline (84) is located in the movable plate (81), the clamping strip (86) is fixedly connected to the upper surface of the movable plate (71) and extends out of the movable plate (71), when the high-voltage bushing in the middle part of the transformer pushes the push plate (83) to slide, the test column (5) located in the middle part moves downward, and the clamping block (85) moves upward to be clamped with the clamping strip (86).

6. The transformer insulation withstand voltage detection device according to claim 5 is characterized in that: The docking mechanism three (9) comprises a movable plate three (91), a shell three (92), a push plate three (93), a hydraulic pipeline three (94), a clamping block two (95) and a clamping strip two (96); the movable plate three (91) is slidably mounted on the lower surface of the connecting plate (63); the shell three (92) is slidably mounted on the end of the hydraulic pipeline two (84); the push plate three (93) is slidably mounted in the shell; the hydraulic pipeline three (94) is arranged on the movable plate three (91); the clamping block two (95) is slidably mounted on the upper part of the hydraulic pipeline three (94); the clamping strip two (96) is fixedly connected to the upper surface of the movable plate two (81) and extends out of the movable plate two (81); when the high-voltage bushing on the far left of the transformer pushes the push plate three (93) to slide, the test column (5) located on the far left of the connecting plate (63) moves downward, and the clamping block two (95) is clamped with the clamping strip two (96).

7. The transformer insulation withstand voltage detection device according to claim 6 is characterized in that: The driving member 1 (2) comprises a rotation source (21), a rotation screw (22) and a guide rod (23); the rotation source (21) is mounted on the frame 1 (1); the rotation screw (22) is connected to the end of the output shaft of the rotation source (21) and extends in the left-right direction; the moving frame (13) is threadedly connected to the rotation screw (22); the guide rod (23) is fixedly connected to the frame 1 (1) and extends in the left-right direction; the guide rod (23) is penetrated through the moving frame (13).

8. The transformer insulation withstand voltage detection device according to claim 6 is characterized in that: The second moving plate (81) and the third moving plate (91) are both provided with a second return spring (911) extending in the left-right direction.

9. The transformer insulation withstand voltage detection device according to claim 6 is characterized in that: The shell one (72), the shell two (82) and the shell three (92) are all provided with a return spring three (731) extending in the left-right direction.

10. Based on the transformer insulation withstand voltage detection method, it is characterized in that: The transformer insulation withstand voltage detection device according to claim 7 is applied, and the method is: S1, firstly placing a transformer to be subjected to a withstand voltage test on a support plate (33), the transformer pressing the support plate (33) downward and causing the friction block (321) on the support column (32) to contact the bottom of the transformer; S2, starting the linear drive member to drive the adjustment plates (42) to move toward each other, and the adjustment plates (42) abut against the transformer and push the transformer and the support frame (3) to move, so that the three high-voltage bushings of the transformer are arranged in the left-right direction; S3, starting the rotation source (21) to drive the rotating screw (22) to rotate so that the movable frame (13) moves from the loading area (11) to the detection area (12); S4, as the transformer moves, the test column (5) is gradually connected to the high-voltage bushing on the transformer, and finally the transformer is tested.

Images