Transformer high-voltage phase line trial assembly device

Abstract

The invention relates to the technical field of tools for transformer manufacturing, and provides a transformer high-voltage phase line trial assembly device which comprises a phenolic aldehyde straight barrel, an iron barrel, an iron pipe support, a flange plate, a fixing assembly and a limiting assembly. The phenolic aldehyde straight barrel is sleeved with the iron barrel in a sliding mode, the iron pipe support is fixedly installed on the iron barrel, and the flange plate is fixedly installed on the lower portion of the iron pipe support; the fixing assembly is installed on the iron cylinder, the limiting assembly is installed on the fixing assembly, and by means of the technical scheme, the problem that in the prior art, due to the fact that a casing pipe cannot reach goods and cannot be subjected to trial assembly, the phase line taper is difficult to install in place at a time in the casing pipe installation process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of tooling for transformer manufacturing, and in particular to a transformer high-voltage phase line test assembly device. Background Art

[0002] The transformer high-voltage phase line test device is an instrument used to test the transformer high-voltage phase line and its connection parts. Its main function is to install, wire, debug and test the transformer to ensure the safety and reliability of the transformer during use. It is usually composed of a riser, high-voltage bushing, lead, connector, grounding wire and other parts.

[0003] When testing the high-voltage phase line of a 220KV product, after installing the riser, the high-voltage bushing is hoisted and installed phase by phase to determine whether the phase line length and phase line taper are appropriate. However, sometimes the 220KV bushing does not arrive on time during the product production process, and the bushing cannot be tested if it does not arrive. After the bushing is hoisted and installed, one or two employees are required to straighten the high-voltage lead, which is time-consuming and labor-intensive. The phase line taper is difficult to assemble in place at one time. Due to the structure of the transformer, the taper position is out of the human field of vision and is difficult to visually observe. The camera cannot accurately reflect the actual distance. The general solution is to require employees of moderate stature to enter the transformer to mark the phase line taper, but this process poses a safety hazard and is not conducive to the cleaning of the transformer body. Summary of the invention

[0004] The present invention provides a transformer high-voltage phase line test installation device, which solves the problem in the related art that the test installation cannot be carried out due to the lack of bushing delivery, resulting in the difficulty in once-in-one installation of the phase line taper during the bushing installation process.

[0005] The technical solution of the present invention is as follows: A transformer high-voltage phase line test installation device, comprising: Phenolic straight barrel; An iron cylinder, the phenolic straight cylinder is provided with a sliding sleeve thereon; An iron pipe bracket, the iron tube is fixedly mounted on the iron tube; A flange, the flange is fixedly mounted on the lower part of the iron pipe bracket; A fixing assembly, the fixing assembly is mounted on the iron cylinder and is used to fix the relative position of the iron cylinder and the phenolic straight cylinder; A limiting component is installed on the fixing component and is used to fix the position of the fixing component.

[0006] On the basis of the above-mentioned scheme, a plane is provided on the outer side wall of the phenolic straight cylinder, the plane is parallel to the axis of the phenolic straight cylinder, and a scale is arranged on the plane.

[0007] On the basis of the above scheme, a plurality of mounting holes are provided in a circular shape at equal angles on the iron pipe bracket for fixed installation on the flange, and the bottom end of the flange is in the same plane as the bottom end of the iron tube.

[0008] On the basis of the above scheme, the fixing assembly comprises: A fixing frame, the fixing frame is fixedly mounted on the iron cylinder; Connecting rods, two connecting rods are symmetrically and rotatably installed on both sides of the fixing frame; A first gear, wherein the end of each connecting rod is fixedly mounted with the first gear, and two adjacent first gears are meshed with each other; A fixing part is installed on each of the connecting rods and is used to fix the positions of the iron cylinder and the phenolic straight cylinder.

[0009] On the basis of the above solution, the fixing part comprises: Conical rollers, each of the connecting rods is symmetrically and fixedly mounted with the conical rollers, each of the conical rollers is provided with a protrusion, and each of the protrusions is made of rubber; Wherein, the protrusion on each of the upper connecting rods is located at the upper part of the upper connecting rod, and the protrusion on each of the lower connecting rods is located at the lower part of the lower connecting rod.

[0010] Based on the above solution, a second gear is rotatably mounted in the fixing frame, and the second gear is meshed with one of the first gears; A third gear, the third gear is rotatably mounted inside the fixing frame, and the third gear is meshed with the second gear; Wherein, the third gear is meshed with one of the first gears, and the first gear meshed with the third gear and the first gear meshed with the second gear are symmetrically arranged relative to the fixing frame; A paddle, wherein the paddle is fixedly connected to the second gear.

[0011] On the basis of the above scheme, the limit assembly includes: A housing, wherein the housing is fixedly mounted on the fixing frame; A shell, wherein the shell is fixedly mounted on the upper portion of the housing; A sliding frame, wherein the sliding frame is slidably mounted in the housing; A ratchet wheel is rotatably mounted inside the housing and is fixedly connected to the third gear.

[0012] On the basis of the above-mentioned solution, a support is fixedly installed at the bottom of the sliding frame; Pawls, two pawls are symmetrically and rotatably mounted on the lower part of the support, and the two pawls are adapted to the ratchet wheel.

[0013] In addition to the above solutions, it also includes: A pull frame, the pull frame is fixedly mounted on the sliding frame, and the pull frame is slidably matched with the housing; A spring is fixedly mounted on the sliding frame, the spring is located outside the pulling frame, and the top end of the spring is fixedly connected to the inner top wall of the shell.

[0014] On the basis of the above-mentioned solution, mounting grooves are provided on both sides of the sliding frame, and the two mounting grooves are symmetrically arranged; A reed, wherein each of the mounting grooves has a reed fixedly mounted therein; Positioning grooves are provided on both sides of the shell, and the positioning grooves are adapted to the spring sheets.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, the sliding frame is pushed to move along the shell until the sliding frame drives the pawl on the support to engage with the ratchet. In most cases, the position of the ratchet is not accurate. At this time, the position of the paddle is gently moved to make the ratchet and the pawl correspond to each other. Since the pawl and the support are rotatably connected, after the pawl is pressed on the ratchet, the possibility of dislocation at the meshing point of the pawl and the ratchet can be reduced, the stability of the connection is improved, and thus the stability of the connection between the tapered roller and the phenolic straight cylinder is improved.

[0016] 2. In the present invention, the corresponding tapered roller is driven to rotate by the connecting rod, and the protrusion arranged on the tapered roller is abutted against the outer side of the phenolic straight tube. Through the arrangement of multiple tapered rollers, the position between the fixing frame and the phenolic straight tube can be quickly and stably fixed, avoiding the problem that the overall weight of the trial assembly device is concentrated at the connection between the bolt and the phenolic straight tube due to the contact between the end of the bolt and the phenolic straight tube when directly fixed with bolts, resulting in excessive local stress, thereby affecting the stability of the fixation. At the same time, the accuracy of the fixation is improved, and the possibility of crushing the phenolic straight tube is reduced.

[0017] 3. In the present invention, the arrangement of the phenolic straight tube, the iron tube, the iron tube bracket and the flange plate can cope with the situation that the casing cannot be delivered in time and affects the trial installation, and the taper position of the phase line can be determined more accurately. The structure is simple and easy to operate. Through the cooperation of the fixing component and the limiting component, not only the stress concentration problem caused by bolt fixing can be avoided, the tightness of the connection is improved, but also the position between the phenolic straight tube and the iron tube can be adjusted easily, which is convenient for maintenance and overhaul and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure from another angle in the present invention; Figure 3 It is a schematic diagram of a three-dimensional structure in cross section in the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the cooperation between the fixing component and the limiting component in the present invention; Figure 5 It is a schematic diagram of the structure of the fixing component in the present invention; Figure 6 It is a cross-sectional structural schematic diagram of the cooperation between the limit assembly and the third gear in the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the limiting component in the present invention; Figure 8 It is a cross-sectional structural schematic diagram of the cooperation among the sliding frame, the mounting groove and the spring leaf in the present invention; Fig. 9 It is a schematic cross-sectional structure diagram of the cooperation between the shell and the positioning groove in the present invention.

[0020] The numbers in the figure represent: 1. phenolic straight tube; 2. iron tube; 3. iron pipe bracket; 4. flange; 5. scale; 6. mounting hole; 7. fixing frame; 8. connecting rod; 9. first gear; 10. tapered roller; 11. third gear; 12. paddle; 13. outer shell; 14. shell; 15. sliding frame; 16. ratchet; 17. support; 18. pawl; 19. pull frame; 20. spring; 21. mounting groove; 22. reed; 23. positioning groove; 24. second gear. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 like Figures 1 to 9As shown, this embodiment proposes a transformer high-voltage phase line test installation device, including a phenolic straight cylinder 1, an iron cylinder 2, an iron pipe bracket 3, a flange 4, a fixing component and a limiting component, the phenolic straight cylinder 1 is slidably sleeved with an iron cylinder 2, the iron pipe bracket 3 is fixedly installed on the iron cylinder 2, and a flange 4 is fixedly installed at the lower part of the iron pipe bracket 3. A plane is provided on the outer wall of the phenolic straight cylinder 1, and the plane is parallel to the axis of the phenolic straight cylinder 1. A scale 5 is provided on the plane. A plurality of mounting holes 6 are provided at equal angles in a circular shape on the iron pipe bracket 3 for fixed installation on the flange 4, and the bottom end of the flange 4 is in the same plane as the bottom end of the iron cylinder 2.

[0023] Specifically, before using the tester, it is necessary to first find out the size from the lower edge of the corresponding bushing mounting flange 4 to the rear end of the bushing according to the transformer installation diagram, and then adjust the position of the iron cylinder 2 on the phenolic straight cylinder 1, and the iron cylinder 2 slides on the phenolic straight cylinder 1 along the axial direction of the phenolic straight cylinder 1. The movement of the iron cylinder 2 drives the iron pipe bracket 3 to move, thereby driving the flange 4 installed at the bottom of the iron pipe bracket 3 to move, so that the size from the lower edge of the flange 4 to the rear end of the phenolic straight cylinder 1 is equal to the size from the lower edge of the bushing mounting flange 4 to the rear end of the bushing, and then read the scale 5 at the position where the upper edge of the iron cylinder 2 leaks out of the phenolic straight cylinder 1, and this scale 5 Record it or make a mark at this position as the first marking line. Then install the tester body to the high-voltage bushing riser. At this time, the phase line is inserted into the phenolic straight cylinder 1. Therefore, the inner diameter of the phenolic straight cylinder 1 is larger than the outer diameter of the phase line, and the outer diameter is smaller than the tester tube diameter. Therefore, the phenolic straight cylinder 1 can be inserted into the iron cylinder 2 and coincide with the corresponding first marking line. If the upper edge of the iron cylinder 2 cannot coincide with the first marking line, it means that the phase line taper is too high. Read the length between the upper edge of the iron cylinder 2 and the first marking line through the scale 5, or use a ruler to measure the length between the upper edge of the iron cylinder 2 and the first marking line. This length is the length that the taper needs to be reduced.

[0024] If the first marking line coincides with the upper edge of the iron cylinder 2, the size from the lower edge of the flange 4 on the tester to the rear end of the phenolic straight cylinder 1 is equal to the size from the lower edge of the sleeve mounting flange 4 to the rear end of the sleeve. Bolts can be used to fix the relative position of the iron cylinder 2 and the phenolic straight cylinder 1, and check whether the taper and the position of the phenolic straight cylinder 1 are in place. Then loosen the bolts. If the phenolic straight cylinder 1 falls to the taper, make a second marking line at the position where the phenolic straight cylinder 1 is exposed on the upper edge of the iron cylinder 2. The distance between the two marking lines is the required additional length of the taper. The phase line naturally droops as a straight line. At this time, measure the length of the upper half of the phase line starting from the first marking line, mark the end section, and the trial installation of one phase is completed.

[0025] Embodiment 2 like Figure 4 , Figure 5As shown, the fixing component is installed on the iron cylinder 2, and is used to fix the relative position of the iron cylinder 2 and the phenolic straight cylinder 1. The fixing component includes a fixing frame 7, a connecting rod 8, a first gear 9 and a fixing part. The fixing frame 7 is fixedly installed on the iron cylinder 2, and two connecting rods 8 are symmetrically and rotatably installed on both sides of the interior of the fixing frame 7. A first gear 9 is fixedly installed on the end of each connecting rod 8, and two adjacent first gears 9 are meshed with each other. A fixing part is installed on each connecting rod 8 to fix the position of the iron cylinder 2 and the phenolic straight cylinder 1.

[0026] Specifically, the dimension from the lower edge of the flange 4 on the tester to the rear end of the phenolic straight tube 1 is equal to the dimension from the lower edge of the sleeve mounting flange 4 to the rear end of the sleeve. When the position between the phenolic straight tube 1 and the iron tube 2 needs to be fixed, the first gear 9 is set to drive the four connecting rods 8 to rotate at the same time. At this time, the fixing part is set to contact with the phenolic straight tube 1, and the position between the phenolic straight tube 1 and the fixing frame 7 can be fixed. At this time, the position between the phenolic straight tube 1 and the iron tube 2 can be fixed.

[0027] The above, such as Figure 5 As shown, the fixed part includes a tapered roller 10, a second gear 24, a third gear 11 and a paddle 12, and each connecting rod 8 is symmetrically and fixedly mounted with a tapered roller 10, and each tapered roller 10 is provided with a protrusion, and each protrusion is made of rubber, wherein the protrusion on each upper connecting rod 8 is located at the upper part of the upper connecting rod 8, and the protrusion on each lower connecting rod 8 is located at the lower part of the lower connecting rod 8, and the second gear 24 is rotatably mounted in the fixed frame 7, and the second gear 24 is meshed with one of the first gears 9, and the third gear 11 is rotatably mounted inside the fixed frame 7, and the third gear 11 is meshed with the second gear 24, wherein the third gear 11 is meshed with one of the first gears 9, the first gear 9 meshed with the third gear 11, and the first gear 9 meshed with the second gear 24 are symmetrically arranged relative to the fixed frame 7, and the paddle 12 is fixedly connected to the second gear 24.

[0028] Specifically, when it is necessary to fix the position between the phenolic straight cylinder 1 and the iron cylinder 2, hold the paddle 12 and twist the paddle 12, the paddle 12 drives the second gear 24 to rotate, and the second gear 24 drives the third gear 11 to rotate in the opposite direction. At this time, through the cooperation of the second gear 24 and the third gear 11, the four first gears 9 can be driven to rotate at the same time, and every two meshing first gears 9 rotate in the opposite direction, thereby driving the corresponding connecting rod 8 to rotate, and the corresponding conical roller 10 can be driven to rotate at this time, and the protrusion set on the conical roller 10 is abutted against the outer side of the phenolic straight cylinder 1. Through the arrangement of multiple conical rollers 10, the position between the fixing frame 7 and the phenolic straight cylinder 1 can be quickly and stably fixed to avoid The error is caused when bolts are directly used for fixing. Due to the contact between the end of the bolt and the phenolic straight tube 1, the overall weight of the test assembly device will be concentrated on the connection between the bolt and the phenolic straight tube 1. If the bolt connection is not tight or the bolt is not evenly stressed, it will cause excessive local stress, thereby affecting the stability of the fixation. In addition, during the test assembly process, the assembly error between the phenolic straight tube 1 and the iron tube 2 will continue to accumulate during the entire fixing process, which may also cause changes in the size, shape and position of the connection part, thereby reducing the stability of the installation and causing reading errors. After fixing the position of the phenolic straight tube 1 by the protrusion on the tapered roller 10, the position of the third gear 11 is fixed, and the position of the tapered roller 10 can be fixed.

[0029] like Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the limit assembly is installed on the fixed assembly and is used to fix the position of the fixed assembly. The limit assembly includes a shell 13, a shell 14, a sliding frame 15, a ratchet 16, a support 17 and a pawl 18. The shell 13 is fixedly installed on the fixed frame 7. The shell 14 is fixedly installed on the upper part of the shell 13, and the sliding frame 15 is slidably installed in the shell 14. The ratchet 16 is rotatably installed inside the shell 13. The ratchet 16 is fixedly connected to the third gear 11. A support 17 is fixedly installed on the bottom of the sliding frame 15, and two pawls 18 are symmetrically and rotatably installed on the lower part of the support 17. The two pawls 18 are adapted to the ratchet 16.

[0030] Specifically, when the paddle 12 is turned and the tapered roller 10 is driven by the connecting rod 8 to fix the phenolic straight cylinder 1, the pawl 18 disengages from the ratchet 16. After the phenolic straight cylinder 1 is fixed, the position of the third gear 11 needs to be fixed, thereby fixing the position of the tapered roller 10. At this time, the sliding frame 15 is pushed to move along the shell 14 until the sliding frame 15 drives the pawl 18 on the support 17 to engage with the ratchet 16. In most cases, the position of the ratchet 16 is not accurate. At this time, the position of the paddle 12 is gently moved to make the ratchet 16 and the pawl 18 correspond to each other. Since the pawl 18 and the support 17 are rotatably connected, after the pawl 18 is pressed on the ratchet 16, the possibility of dislocation at the meshing point of the pawl 18 and the ratchet 16 can be reduced, thereby improving the stability of the connection.

[0031] The above, such as Figure 6 , Figure 7 As shown, it also includes a pull frame 19 and a spring 20. The pull frame 19 is fixedly mounted on the sliding frame 15, and the pull frame 19 is slidably matched with the shell 14. The spring 20 is fixedly mounted on the sliding frame 15, and the spring 20 is located outside the pull frame 19. The top end of the spring 20 is fixedly connected to the inner top wall of the shell 14.

[0032] Specifically, by providing the spring 20 , the pawl 18 can be firmly pressed against the ratchet 16 , so that the meshing between the two is tighter, and the movement of the sliding frame 15 is controlled by the pulling frame 19 .

[0033] The above, such as Figure 8 , Fig. 9 As shown, it also includes a mounting groove 21, a reed 22 and a positioning groove 23. The sliding frame 15 has mounting grooves 21 on both sides, and the two mounting grooves 21 are symmetrically arranged. A reed 22 is fixedly installed inside each mounting groove 21. The housing 14 has positioning grooves 23 on both sides, and the positioning grooves 23 are adapted to the reed 22.

[0034] Specifically, when the paddle 12 can rotate, the raised position of the spring leaf 22 is engaged with the positioning groove 23, thereby fixing the relative position between the sliding frame 15 and the shell 14. When it is necessary to fix the position of the ratchet 16 by the pawl 18, the pull frame 19 is pressed downward to cause the spring leaf 22 to elastically deform. At this time, the raised position of the spring leaf 22 is disengaged from the positioning groove 23 and slidingly cooperates with the shell 14.

[0035] In summary, the dimension from the lower edge of the flange 4 on the tester to the rear end of the phenolic straight tube 1 is equal to the dimension from the lower edge of the sleeve installation flange 4 to the rear end of the sleeve. When the position between the phenolic straight tube 1 and the iron tube 2 needs to be fixed, the paddle 12 is turned, and the pawl 18 is not engaged with the ratchet 16. At the same time, the raised position of the spring 22 is engaged with the positioning groove 23. The paddle 12 drives the second gear 24 to rotate, and the second gear 24 drives the third gear 11 to rotate in the opposite direction. At this time, the cooperation between the second gear 24 and the third gear 11 can simultaneously drive the four first gears 9 to rotate, and every two meshed first gears 9 rotate in the opposite direction. , thereby driving the corresponding connecting rod 8 to rotate, and at this time the corresponding tapered roller 10 can be driven to rotate, and the protrusion set on the tapered roller 10 is abutted against the outer side of the phenolic straight tube 1. Through the arrangement of multiple tapered rollers 10, the position between the fixing frame 7 and the phenolic straight tube 1 can be quickly and stably fixed, avoiding the stress concentration caused by direct bolt fixation, thereby affecting the stability of the fixation, reducing the stability of the installation, and causing the phenomenon of reading error. After fixing the position of the phenolic straight tube 1 by the protrusion on the tapered roller 10, the position of the third gear 11 is fixed, and the position of the tapered roller 10 can be fixed.

[0036] At this time, the sliding frame 15 is pushed by the pulling frame 19 to move along the shell 14. At this time, the spring leaf 22 is elastically deformed by the pressure of the inner wall of the shell 14, and the raised position of the spring leaf 22 disengages from the positioning groove 23 and slides with the shell 14 until the sliding frame 15 drives the pawl 18 on the support 17 to engage with the ratchet 16. In most cases, the position of the ratchet 16 is not accurate. At this time, the position of the paddle 12 is gently moved to make the ratchet 16 and the pawl 18 correspond to each other. Since the pawl 18 and the support 17 are rotatably connected, through the setting of the spring 20, after the pawl 18 is pressed on the ratchet 16, the possibility of dislocation at the meshing point of the pawl 18 and the ratchet 16 can be reduced, so that the meshing between the two is tighter, and the stability of the connection is improved.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer high voltage phase line test installation device, characterized in that: include: Phenolic straight tube (1); An iron cylinder (2), the iron cylinder (2) being provided on a sliding sleeve on the phenolic straight cylinder (1); An iron pipe bracket (3), the iron pipe bracket (3) being fixedly mounted on the iron cylinder (2); A flange (4), the flange (4) being fixedly mounted on the lower part of the iron pipe bracket (3); A fixing assembly, the fixing assembly being mounted on the iron cylinder (2) and being used to fix the relative position of the iron cylinder (2) and the phenolic straight cylinder (1); A limiting component is installed on the fixing component and is used to fix the position of the fixing component.

2. A transformer high voltage phase line test installation device according to claim 1, characterized in that: A plane is provided on the outer wall of the phenolic straight cylinder (1), the plane is parallel to the axis of the phenolic straight cylinder (1), and a scale (5) is provided on the plane.

3. A transformer high voltage phase line test installation device according to claim 2, characterized in that: The iron pipe bracket (3) is provided with a plurality of mounting holes (6) at equal angles in a circular shape for fixed mounting on the flange (4); the bottom end of the flange (4) and the bottom end of the iron cylinder (2) are located in the same plane.

4. A transformer high voltage phase line test installation device according to claim 3, characterized in that: The fixing assembly comprises: A fixing frame (7), the fixing frame (7) being fixedly mounted on the iron cylinder (2); Connecting rods (8), two connecting rods (8) are symmetrically and rotatably mounted on both sides of the interior of the fixing frame (7); A first gear (9), wherein the end of each connecting rod (8) is fixedly mounted with the first gear (9), and two adjacent first gears (9) are meshed with each other; A fixing part is installed on each of the connecting rods (8) and is used to fix the position of the iron cylinder (2) and the phenolic straight cylinder (1).

5. A transformer high voltage phase line test installation device according to claim 4, characterized in that: The fixing portion comprises: A conical roller (10), each of the connecting rods (8) being symmetrically and fixedly mounted with the conical roller (10), each of the conical rollers (10) being provided with a protrusion, and each of the protrusions being made of rubber; Wherein, the protrusion on each upper connecting rod (8) is located at the upper part of the connecting rod (8) at the upper part, and the protrusion on each lower connecting rod (8) is located at the lower part of the connecting rod (8) at the lower part.

6. A transformer high voltage phase line test installation device according to claim 5, characterized in that: A second gear (24) is rotatably mounted in the fixing frame (7), and the second gear (24) is meshed with one of the first gears (9); a third gear (11), the third gear (11) being rotatably mounted inside the fixing frame (7), the third gear (11) being meshed with the second gear (24); The third gear (11) is meshed with one of the first gears (9), and the first gear (9) meshed with the third gear (11) and the first gear (9) meshed with the second gear (24) are symmetrically arranged relative to the fixing frame (7); A paddle (12), wherein the paddle (12) is fixedly connected to the second gear (24).

7. A transformer high voltage phase line test installation device according to claim 6, characterized in that: The limiting component comprises: A housing (13), the housing (13) being fixedly mounted on the fixing frame (7); A shell (14), the shell (14) being fixedly mounted on the upper part of the outer shell (13); A sliding frame (15), wherein the sliding frame (15) is slidably mounted in the housing (14); A ratchet wheel (16), the ratchet wheel (16) being rotatably mounted inside the housing (13), and the ratchet wheel (16) being fixedly connected to the third gear (11).

8. A transformer high voltage phase line test installation device according to claim 7, characterized in that: A support (17) is fixedly mounted on the bottom of the sliding frame (15); A ratchet pawl (18), wherein two ratchet pawls (18) are symmetrically and rotatably mounted on the lower part of the support (17), and the two ratchet pawls (18) are adapted to the ratchet wheel (16).

9. A transformer high voltage phase line test installation device according to claim 8, characterized in that: Also includes: A pull frame (19), the pull frame (19) being fixedly mounted on the sliding frame (15), the pull frame (19) being slidably matched with the housing (14); A spring (20), wherein the spring (20) is fixedly mounted on the sliding frame (15), the spring (20) is located outside the pulling frame (19), and the top end of the spring (20) is fixedly connected to the inner top wall of the housing (14).

10. A transformer high voltage phase line test installation device according to claim 9, characterized in that: Both sides of the sliding frame (15) are provided with mounting grooves (21), and the two mounting grooves (21) are symmetrically arranged; A reed (22), wherein each of the mounting grooves (21) has the reed (22) fixedly mounted therein; Positioning grooves (23), the positioning grooves (23) are provided on both sides of the interior of the housing (14), and the positioning grooves (23) are adapted to fit the reed (22).

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