Hydraulic tool for disassembling and assembling inner cone of high-voltage power cable terminal

Abstract

The utility model relates to the technical field of power equipment, in particular to a hydraulic tool for disassembling and assembling an inner cone of a high-voltage power cable terminal. The high-voltage power cable terminal inner cone comprises a sleeve, a driving mechanism and a propeller, the high-voltage power cable terminal inner cone comprises a stop sleeve, a wire biting device and a wedge-shaped barrel, the top of the sleeve is provided with a limiting flange, the driving mechanism is connected to the bottom of the sleeve, the propeller is of a barrel-shaped structure with a hole formed in one end, and the propeller is movably connected into the sleeve. The large opening end of the wedge-shaped barrel abuts against the stop sleeve, the wedge-shaped barrel is sleeved with the wire biting device, the sealing end of the propeller is adsorbed to the output end of the driving mechanism, the hole opening end of the propeller abuts against the wire biting device, and the driving mechanism pushes the wire biting device to tightly sleeve the wedge-shaped barrel through the propeller. The tool adopts a hydraulic driving mode as power propulsion, is labor-saving and easy, and is stable in power output; the propeller is in butt joint in the sleeve in an adsorption mode, and disassembly and assembly are more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal. Background Technology

[0002] When installing the inner cone of a high-voltage power cable terminal, pressure needs to be applied to the connecting parts of the cable terminal and the inner cone to achieve a tight connection. Similarly, pressure needs to be applied to the connecting parts of the inner cone during disassembly to disconnect the connection. To facilitate the installation and removal of the inner cone, auxiliary tools have emerged on the market. These tools use external force to drive a pusher to tighten or disconnect the inner cone's gripper and wedge-shaped cylinder. However, traditional methods of pushing the inner cone require screws to achieve external force, which is time-consuming and labor-intensive. Furthermore, the pusher components need to be screwed into the disassembly tool, resulting in tedious screw-fixing operations for each operation and low work efficiency. Utility Model Content

[0003] This utility model provides a hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal, which aims to solve the problems of cumbersome operation caused by the use of screws to fix internal components in existing inner cone disassembly and assembly tools.

[0004] This utility model provides a hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal, including a sleeve, a drive mechanism, and a pusher. The inner cone of the high-voltage power cable terminal includes a stop sleeve, a wire bite, and a wedge-shaped cylinder. The top of the sleeve is provided with a limiting flange. The drive mechanism is connected to the bottom of the sleeve. The pusher is a cylindrical structure with an opening at one end and is movably connected inside the sleeve. When installing the inner cone of the high-voltage power cable terminal, the stop sleeve abuts against the limiting flange, the large opening end of the wedge-shaped cylinder pushes against the stop sleeve, the wire bite is sleeved on the outside of the wedge-shaped cylinder, the sealed end of the pusher is adsorbed onto the output end of the drive mechanism, and the open end of the pusher abuts against the wire bite. The drive mechanism pushes the wire bite to tighten onto the wedge-shaped cylinder through the pusher.

[0005] As a further improvement of this utility model, the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal also includes a gasket, which is connected between the pusher and the output end of the drive mechanism.

[0006] As a further improvement of this utility model, the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal also includes a disassembly and replacement block and a positioning pad. When disassembling the inner cone of the high-voltage power cable terminal, the disassembly and replacement block is adsorbed inside the sleeve. The upper part of the disassembly and replacement block abuts against the limiting flange. The wire bite, which is fitted on the wedge-shaped cylinder, abuts against the lower part of the disassembly and replacement block. The wedge-shaped cylinder is movably connected inside the disassembly and replacement block. The sealing end of the pusher abuts against the wedge-shaped cylinder. The upper end of the positioning pad connects to the opening end of the pusher. The lower end of the positioning pad is adsorbed against the output end of the drive mechanism. The drive mechanism pushes the wedge-shaped cylinder away from the wire bite through the positioning pad and the pusher.

[0007] As a further improvement of this utility model, the positioning pad includes a first pad and a second pad. The first pad is provided with a positioning protrusion and a positioning protrusion. The upper part of the second pad is provided with a positioning groove. The lower part of the second pad is attached to the output end of the drive mechanism. The positioning protrusion is connected to the positioning groove. The positioning protrusion is inserted into the opening of the pusher.

[0008] As a further improvement of this utility model, the disassembly and replacement block is composed of multiple replacement block petals spliced ​​together, each of the replacement block petals being adsorbed into the sleeve, and the spliced ​​disassembly and replacement block is compatible with the wire biteer and the wedge-shaped tube.

[0009] As a further improvement of this utility model, the inner ring at the bottom of the sleeve is provided with a groove, and the outer side of the output end of the drive mechanism is provided with a convex ring, which is engaged in the groove.

[0010] As a further improvement of this utility model, the sleeve is formed by detachably splicing multiple sleeve petals.

[0011] As a further improvement of this utility model, the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal also includes an outer cover ring. After multiple sleeve petals are spliced ​​together, the outer cover ring is fitted over the outside of the sleeve.

[0012] As a further improvement of this utility model, the adsorption method adopts magnetic attraction.

[0013] As a further improvement of this utility model, the driving mechanism is a hydraulic push rod.

[0014] The beneficial effects of this utility model are as follows: This tool uses hydraulic drive as the power propulsion method, which is more labor-saving and easier than the traditional method of tightening screws, and the power output is stable, ensuring the quality of disassembly and assembly of the inner cone is stable; the pusher uses adsorption to connect to the inside of the sleeve, which is more convenient and faster than the cumbersome operation of fixing with screws in the traditional method; with this tool set, only the adjustment of each part is needed to achieve multi-functional operation of installation and disassembly. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the installation state.

[0016] Figure 2 This is an internal structural diagram of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the installation state.

[0017] Figure 3 This is an exploded view of the structure of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the installation state.

[0018] Figure 4 This is a structural cross-sectional view of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the installation state.

[0019] Figure 5 This is an overall structural diagram of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the disassembly state.

[0020] Figure 6 This is an internal structural diagram of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the disassembly state.

[0021] Figure 7 This is an exploded view of the structure of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the disassembly state.

[0022] Figure 8 This is a cross-sectional view of the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal in the disassembly state. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Example 1:

[0025] like Figures 1 to 4As shown, the hydraulic tool for installing and removing the inner cone of a high-voltage power cable terminal according to this utility model includes a sleeve 2, a drive mechanism 4, and a pusher 3 when performing the inner cone installation function. The inner cone 1 of the high-voltage power cable terminal includes a stop sleeve 11, a wire bite 13, and a wedge cylinder 12. The top of the sleeve 2 is provided with a limiting flange 21. The drive mechanism 4 is connected to the bottom of the sleeve 2. The pusher 3 is a cylindrical structure with an opening at one end. The pusher 3 is movably connected inside the sleeve 2. When installing the inner cone 1 of the high-voltage power cable terminal, the stop sleeve 11 abuts against the limiting flange 21. The large opening end of the wedge cylinder 12 pushes against the stop sleeve 11. The wire bite 13 is sleeved on the outside of the wedge cylinder 12. The sealed end of the pusher 3 is adsorbed on the output end of the drive mechanism 4. The open end of the pusher 3 abuts against the wire bite 13. The drive mechanism 4 pushes the wire bite 13 to tighten the wedge cylinder 12 through the pusher 3.

[0026] The sealing end of the pusher 3 is magnetically attracted to the output end of the drive mechanism 4, which can be achieved by installing magnets at corresponding positions on the pusher 3 and the drive mechanism 4. The sleeve 2 provides an inner conical mounting space, allowing the drive mechanism 4 to push the pusher 3 to clamp the wire bite 13 into the wedge-shaped cylinder 12. The opening diameter of the pusher 3 is larger than the diameter of the wedge-shaped cylinder 12, which prevents contact with the wedge-shaped cylinder 12 when pushing the wire bite 13.

[0027] The drive mechanism 4 is a hydraulic push rod. The hydraulic push rod can be a hand-operated hydraulic push rod. Simply turn the handle, and the push rod will gradually push out under hydraulic drive. Compared with the traditional drive method of tightening with screws, it is more convenient and simple.

[0028] The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal also includes a gasket 5, which is connected between the pusher 3 and the output end of the drive mechanism 4. The gasket 5 acts as a buffer between the pusher 3 and the drive mechanism 4, preventing direct contact and collision damage between the drive mechanism 4 and the pusher 3. Because the gasket 5 is thin, it does not affect the magnetic attraction between the pusher 3 and the drive mechanism 4.

[0029] The inner ring at the bottom of the sleeve 2 has a groove 22, and the outer side of the output end of the drive mechanism 4 has a protruding ring 41, which is engaged in the groove 22. During drive mechanism installation, the protruding ring 41 of the drive mechanism 4 needs to be engaged into the groove 22 of one sleeve flap 23, and then the groove 22 of the other sleeve flap 23 needs to be aligned with the protruding ring 41 for installation. After installation, the drive mechanism 4 can be secured to the bottom of the sleeve 2, ensuring stable hydraulic drive.

[0030] The sleeve 2 is composed of multiple sleeve segments 23 that are detachably spliced ​​together. The hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal also includes an outer cover ring 6. After the multiple sleeve segments 23 are spliced ​​together, the outer cover ring 6 is fitted over the outside of the sleeve 2. The sleeve 2 is disassembled into a structure of sleeve segments 23, which facilitates the assembly of internal components. After assembly, only the other sleeve segments 23 need to be spliced ​​together. After splicing, the outer cover ring 6 is used to clamp the outside of the sleeve 2 to prevent them from falling apart.

[0031] The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal is used for the following installation process:

[0032] After the power cable passes through the stop sleeve 11 and the wedge cylinder 12, the wire bite 13 is initially fitted onto the wedge cylinder 12. At this time, the wire bite 13 is not yet clamped to the wedge cylinder 12. Take a sleeve petal 23, press the stop sleeve 11 against the limiting flange 21, and then put the pusher 3 in so that the pusher 3 presses against the wire bite 13. Insert the convex ring 41 of the drive mechanism 4 into the slot 22 of the sleeve 2 to fix it. Place the shim 5 at the output end of the drive mechanism 4 and initially adjust the distance of the output end of the drive mechanism 4 so that it can magnetically attract the pusher 3. After completing the assembly of the internal components, cover the other sleeve petals 23 and fit the sleeve 2 with the outer cover ring 6. At this time, turn the hydraulic push rod to gradually extend the hydraulic push rod and push the pusher 3 to move upward. At this time, under the pushing pressure of the pusher 3, the wire bite 13 will be pressed into the conical structure of the wedge cylinder 12 from thin to thick until it is clamped. After completing the clamping installation, disassemble the sleeve 2, pusher 3, and drive mechanism 4 in reverse order, and then remove the inner cone at the end.

[0033] Example 2:

[0034] Based on Example 1, in order to achieve the function of disassembling the inner cone, such as Figures 5 to 8 As shown, the hydraulic tool for disassembling and assembling the inner cone of the high-voltage power cable terminal also includes a disassembly and replacement block 7 and a positioning pad 8. When disassembling the inner cone 1 of the high-voltage power cable terminal, the disassembly and replacement block 7 is adsorbed inside the sleeve 2. The upper part of the disassembly and replacement block 7 abuts against the limiting flange 21. The wire bite 13, which is fitted on the wedge cylinder 12, abuts against the lower part of the disassembly and replacement block 7. The wedge cylinder 12 is movably connected inside the disassembly and replacement block 7. The sealing end of the pusher 3 abuts against the wedge cylinder 12. The upper end of the positioning pad 8 is connected to the opening end of the pusher 3. The lower end of the positioning pad 8 is adsorbed on the output end of the drive mechanism 4. The drive mechanism 4 pushes the wedge cylinder 12 away from the wire bite 13 through the positioning pad 8 and the pusher 3.

[0035] During disassembly and assembly, the same pusher 3 is used, but it is reversed and additional components such as the disassembly and replacement block 7 and the positioning pad 8 are added. The narrow end of the wedge cylinder 12 faces upward and is located at the disassembly and replacement block 7. The disassembly and replacement block 7 has a through hole in the middle, providing space for the movement of the wedge cylinder 12. The wide end of the wedge cylinder 12 faces downward and is pushed by the pusher 3. During pushing, the wire bite 13 is fixed by the disassembly and replacement block 7. The pusher 3 and the drive mechanism 4 are connected through the positioning pad 8. The positioning pad 8 can be inserted into the opening of the pusher 3 to position the pusher 3 and prevent it from slipping during pushing. At the same time, the thickness of the positioning pad 8 can be adapted to different sizes to meet the docking requirements between the pusher 3 and the drive mechanism 4. The connection between the pusher 3 and the positioning pad 8, and between the positioning pad 8 and the drive mechanism 4, can be achieved by magnetic attraction, which is achieved by installing magnets at corresponding positions on the pusher 3, the positioning pad 8, and the drive mechanism 4.

[0036] The positioning pad 8 includes a first pad 81 and a second pad 82. The first pad 81 has a positioning protrusion 83 and a positioning protrusion 84. The second pad 82 has a positioning groove on its upper part and is attached to the output end of the drive mechanism 4 from below. The positioning protrusion 84 is connected to the positioning groove, and the positioning protrusion 83 is inserted into the opening of the pusher 3. The first pad 81 is inserted into the opening of the pusher 3 through the positioning protrusion 83 to position the pusher 3. The first pad 81 can be used alone to realize the docking of the pusher 3 and the drive mechanism 4. If the thickness of the first pad 81 is insufficient, the thickness gap can be made up by adding the second pad 82.

[0037] The replacement block 7 is composed of multiple replacement block segments 71, each of which is magnetically attached to the sleeve 2. The assembled replacement block 7 is compatible with the wire bite 13 and the wedge-shaped tube 12. The segmented structure of the replacement block 7 facilitates the assembly of the wedge-shaped tube 12 and the wire bite 13 within the replacement block 7. The replacement block segments 71 and the sleeve 2 can be magnetically connected by installing magnets at corresponding positions on both.

[0038] The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal is used for the following disassembly process:

[0039] Take a sleeve flap 23, magnetically attach the replacement flap 71 to the sleeve 2 and assemble it at the position of the limiting flange 21. Assemble the wedge-shaped cylinder 12, with the thick end facing upwards and clamping the wire bite 13, inside the replacement flap 71, while simultaneously pressing the wire bite 13 against the replacement flap 71. Insert the pusher 3 into the sleeve flap 23 and press the sealing end of the pusher 3 against the thin end of the wedge-shaped cylinder 12. Secure the drive mechanism 4 by inserting the convex ring 41 into the slot 22 of the sleeve 2. Place a limiting pad at the output end of the drive mechanism 4 and align the limiting pad with the opening of the pusher 3. Adjust the distance at the output end of the drive mechanism 4 so that the pusher 3, positioning pad 5, and drive mechanism 4 can magnetically attract each other. After assembling the internal components, cover the other replacement block petals 71 and sleeve petals 23, and fit the sleeve 2 with the outer cover ring 6. At this time, operate the hydraulic push rod to gradually extend it, pushing the pusher 3 upward. At this time, the wire bite 13 is fixed in position by the replacement block, and the wedge cylinder 12 is pushed upward by the pusher 3. During the pushing process, the wire bite 13 moves from the coarse end to the fine end of the wedge cylinder 12, realizing the detachment of the wire bite 13. After completing the detachment and disassembly operation, disassemble the sleeve 2, disassemble the replacement block, pusher 3, and drive mechanism 4 in the reverse direction, and take out the terminal wire bite 13 and wedge cylinder 12.

[0040] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal, characterized in that, The high-voltage power cable terminal inner cone includes a sleeve, a drive mechanism, and a pusher. It comprises a stop sleeve, a wire bite, and a wedge-shaped cylinder. The top of the sleeve has a limiting flange. The drive mechanism is connected to the bottom of the sleeve. The pusher is a cylindrical structure with an opening at one end, movably connected inside the sleeve. When installing the high-voltage power cable terminal inner cone, the stop sleeve abuts against the limiting flange, the large opening end of the wedge-shaped cylinder pushes against the stop sleeve, the wire bite is fitted outside the wedge-shaped cylinder, the sealed end of the pusher is adsorbed onto the output end of the drive mechanism, and the open end of the pusher abuts against the wire bite. The drive mechanism pushes the wire bite to tighten onto the wedge-shaped cylinder via the pusher.

2. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to claim 1, characterized in that, It also includes a gasket that connects between the output of the thruster and the drive mechanism.

3. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to claim 1, characterized in that, It also includes a disassembly and replacement block and a positioning pad. When disassembling the inner cone of the high-voltage power cable terminal, the disassembly and replacement block is adsorbed inside the sleeve. The upper part of the disassembly and replacement block abuts against the limiting flange. The wire bite, which is fitted on the wedge-shaped cylinder, abuts against the lower part of the disassembly and replacement block. The wedge-shaped cylinder is movably connected inside the disassembly and replacement block. The sealing end of the pusher abuts against the wedge-shaped cylinder. The upper end of the positioning pad connects to the opening end of the pusher. The lower end of the positioning pad is adsorbed against the output end of the drive mechanism. The drive mechanism pushes the wedge-shaped cylinder away from the wire bite through the positioning pad and the pusher.

4. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to claim 3, characterized in that, The positioning pad includes a first pad and a second pad. The first pad is provided with a positioning protrusion and a positioning protrusion. The upper part of the second pad is provided with a positioning groove. The lower part of the second pad is attached to the output end of the drive mechanism. The positioning protrusion is connected to the positioning groove. The positioning protrusion is inserted into the opening of the pusher.

5. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to claim 3, characterized in that, The disassembly and replacement block is composed of multiple replacement block pieces spliced ​​together. Each replacement block piece is adsorbed inside the sleeve. The spliced ​​disassembly and replacement block is compatible with the wire biteer and the wedge tube.

6. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to any one of claims 1 to 5, characterized in that, The inner ring at the bottom of the sleeve is provided with a groove, and the outer side of the output end of the drive mechanism is provided with a convex ring, which is engaged in the groove.

7. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to any one of claims 1 to 5, characterized in that, The sleeve is composed of multiple sleeve segments that are detachably spliced ​​together.

8. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to claim 7, characterized in that, It also includes an outer cover ring, which is fitted over the outside of the sleeve after multiple sleeve segments are spliced ​​together.

9. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to any one of claims 1 to 5, characterized in that, The adsorption method uses magnetic attraction.

10. The hydraulic tool for disassembling and assembling the inner cone of a high-voltage power cable terminal according to any one of claims 1 to 5, characterized in that, The driving mechanism is a hydraulic push rod.

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