A clamping mechanism for high-voltage line maintenance machines
By combining clamping wheels and electric telescopic rods, the complexity and angle adaptability of the clamping mechanism of the high-voltage line maintenance robot are solved, enabling stable clamping and flexible movement of the robot.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN HENGJIN TIANCHENG TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
Smart Images

Figure CN224289051U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage line maintenance technology, and more specifically, to a clamping mechanism for a high-voltage line maintenance machine. Background Technology
[0002] High-voltage line maintenance robots are robots specifically designed for maintenance work on high-voltage transmission lines. They possess a variety of functions and technical features aimed at improving maintenance efficiency and reducing the risks associated with manual operations.
[0003] Traditional high-voltage cable maintenance is done manually. However, manual maintenance is dangerous and inefficient. Currently, high-voltage line maintenance robots can replace manual inspections. However, the current high-voltage line maintenance robots generally have drawbacks such as complex walking and clamping mechanisms, poor adaptability to changes in the angle of the high-voltage line, and difficulty in control. Therefore, we propose a clamping mechanism for high-voltage line maintenance robots to solve the above-mentioned problems. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a clamping mechanism for a high-voltage line maintenance machine. This mechanism clamps the high-voltage line with clamping wheels on the connecting seat, ensuring that the high-voltage line is always clamped by the clamping wheels. The mechanism is simple, adaptable to changes in the angle of the high-voltage line, and easy to operate.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A clamping mechanism for a high-voltage line maintenance machine includes a frame and traveling wheels rotatably connected to the frame. Both ends of the frame are fixedly connected to connecting frames. The bottom of the connecting frame is provided with a sliding groove, and the bottom opening of the sliding groove is symmetrically provided with guide grooves.
[0009] The inner side of the slide groove is symmetrically connected to a driven movable seat with a right-angled trapezoidal structure. The bottom of the driven movable seat is integrally formed with a guide block that is slidably connected to the guide groove. A dovetail groove is provided on the inclined surface of the driven movable seat.
[0010] An electric telescopic rod is installed at the top of the connecting frame;
[0011] The movable end of the electric telescopic rod passes through the top of the connecting frame and is connected to an active movable seat with an isosceles triangular structure. A dovetail slider is integrally formed on the inclined surface of the active movable seat and is slidably connected to the dovetail groove.
[0012] A connecting seat is installed at the bottom of the driven movable seat, and a clamping wheel is rotatably connected to the connecting seat.
[0013] Furthermore, a first drive motor and a second drive motor are respectively installed on the frame on both sides of the walking wheel, and the first drive motor and the second drive motor are used alternately to drive the walking wheel.
[0014] Furthermore, the edge of the walking wheel is integrally formed with a retaining edge.
[0015] Furthermore, the top of the active movable seat is symmetrically and fixedly connected with connecting ears.
[0016] Furthermore, the movable end of the electric telescopic rod is symmetrically provided with mounting planes that fit against the connecting lugs.
[0017] Furthermore, the clamping wheel is provided with an arc-shaped groove.
[0018] Furthermore, the central axis of the clamping wheel is perpendicular to the central axis of the traveling wheel.
[0019] 3. Beneficial effects
[0020] Compared with existing technologies, the advantages of this utility model are:
[0021] (1) In this scheme, the walking wheel first comes into contact with the high-voltage line, and then the movable end of the electric telescopic rod is controlled to retract, thereby driving the active movable seat to move upward relative to the connecting frame. At the same time, the dovetail slider slides synchronously with the dovetail groove, and then the guide block slides with the guide groove, so that the two symmetrically arranged driven movable seats move towards each other. Finally, the clamping wheel on the connecting seat clamps the high-voltage line. The clamping wheel always clamps the high-voltage line. The mechanism is simple, adaptable to changes in the angle of the high-voltage line, and easy to operate.
[0022] (2) In this solution, by installing a first drive motor and a second drive motor on both sides of the frame, the balance of the frame can be ensured by the counterweights on both sides, making the high-voltage line maintenance robot more stable during the walking process. On the other hand, when the first drive motor fails, the second drive motor can be started, so that the high-voltage line maintenance robot can complete the inspection and maintenance work. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a schematic diagram of the walking wheel structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the connecting frame structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the driven movable seat structure of this utility model;
[0027] Figure 5 This is a schematic diagram of the active movable seat structure of this utility model;
[0028] Figure 6 This is a schematic diagram of the clamping wheel structure of this utility model.
[0029] Explanation of the labels in the diagram:
[0030] 1. Frame; 2. Wheels; 3. First drive motor; 4. Second drive motor; 5. Connecting frame; 6. Slide groove; 7. Guide groove; 8. Driven movable seat; 9. Guide block; 10. Dovetail groove; 11. Electric telescopic rod; 12. Active movable seat; 13. Dovetail slider; 14. Connecting seat; 15. Clamping wheel. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0032] Example:
[0033] Please see Figure 1-6 A clamping mechanism for a high-voltage line maintenance machine includes a frame 1 and a traveling wheel 2 rotatably connected to the frame 1. Both ends of the frame 1 are fixedly connected to a connecting frame 5. A sliding groove 6 is provided at the bottom of the connecting frame 5, and guide grooves 7 are symmetrically provided at the bottom opening of the sliding groove 6.
[0034] The inner side of the slide groove 6 is symmetrically connected to a driven movable seat 8 with a right-angled trapezoidal structure. The bottom of the driven movable seat 8 is integrally formed with a guide block 9 that is slidably connected to the guide groove 7. A dovetail groove 10 is provided on the inclined surface of the driven movable seat 8.
[0035] An electric telescopic rod 11 is installed at the top of the connecting frame 5;
[0036] The movable end of the electric telescopic rod 11 passes through the top of the connecting frame 5 and is connected to an active movable seat 12 with an isosceles triangular structure. The inclined surface of the active movable seat 12 is integrally formed with a dovetail slider 13 that slides and connects with the dovetail groove 10.
[0037] A connecting seat 14 is installed at the bottom of the driven movable seat 8, and a clamping wheel 15 is rotatably connected to the connecting seat 14;
[0038] It should be noted that when using the clamping mechanism of this high-voltage line maintenance machine, the walking wheel 2 first comes into contact with the high-voltage line, and then the movable end of the electric telescopic rod 11 is controlled to retract, thereby driving the active movable seat 12 to move upward relative to the connecting frame 5. At the same time, the dovetail slider 13 slides synchronously with the dovetail groove 10, which in turn causes the guide block 9 to slide with the guide groove 7, so that the two symmetrically arranged driven movable seats 8 move towards each other. Finally, the clamping wheel 15 on the connecting seat 14 clamps the high-voltage line. The forward or reverse rotation of the first drive motor 3 and the second drive motor 4 drives the walking wheel 2 to move forward or backward, so that the high-voltage line maintenance robot can move forward or backward on the high-voltage line. The clamping wheel 15 always clamps the high-voltage line. The mechanism is simple, adaptable to changes in the angle of the high-voltage line, and easy to operate.
[0039] like Figure 1 , Figure 2 As shown, a first drive motor 3 and a second drive motor 4 are respectively installed on the frame 1 on both sides of the walking wheel 2, and the first drive motor 3 and the second drive motor 4 are used alternately to drive the walking wheel 2.
[0040] It should be noted that by installing the first drive motor 3 and the second drive motor 4 on both sides of the frame 1, the balance of the frame 1 can be ensured by the counterweights on both sides, making the high-voltage line maintenance robot more stable during movement. On the other hand, if the first drive motor 3 fails, the second drive motor 4 can be started, enabling the high-voltage line maintenance robot to complete the inspection and maintenance work.
[0041] like Figure 2 As shown, the edge of the walking wheel 2 is integrally formed with a retaining edge;
[0042] It should be noted that by setting up the guardrail, the walking wheel 2 can be kept in contact with the high-voltage line at all times, ensuring the normal movement of the high-voltage line maintenance robot.
[0043] like Figure 3 , Figure 5 As shown, the top of the active movable seat 12 is symmetrically fixed with connecting ears, and the end of the movable end of the electric telescopic rod 11 is symmetrically provided with mounting planes that fit with the connecting ears.
[0044] It should be noted that by using bolts to pass through the connecting lugs and the through holes opened at the movable end of the electric telescopic rod 11, and then locking them with nuts, it is convenient to connect the active movable seat 12 with the movable end of the electric telescopic rod 11.
[0045] like Figure 6 As shown, the clamping wheel 15 is provided with an arc-shaped groove;
[0046] It should be noted that by setting an arc groove on the clamping wheel 15, the contact area between the clamping wheel 15 and the high-voltage line can be effectively increased, and it also plays a good limiting role, ensuring the clamping force of the clamping wheel 15 on the high-voltage line.
[0047] like Figure 1 , Figure 6 As shown, the central axis of the clamping wheel 15 is perpendicular to the central axis of the traveling wheel 2;
[0048] It should be noted that the perpendicular positional relationship between the central axis of the clamping wheel 15 and the central axis of the traveling wheel 2 remains unchanged. Therefore, the positional relationship between the traveling wheel 2 and the clamping wheel 15 and the high-voltage line will not change, adapting to the angle changes of the high-voltage line.
[0049] In use: First, the walking wheel 2 comes into contact with the high-voltage line. Then, the movable end of the electric telescopic rod 11 is retracted, thereby driving the active movable seat 12 to move upward relative to the connecting frame 5. At the same time, the dovetail slider 13 slides synchronously with the dovetail groove 10, which in turn causes the guide block 9 to slide with the guide groove 7, so that the two symmetrically arranged driven movable seats 8 move towards each other. Finally, the clamping wheel 15 on the connecting seat 14 clamps the high-voltage line. The forward or reverse rotation of the first drive motor 3 and the second drive motor 4 drives the walking wheel 2 to move forward or backward, so that the high-voltage line maintenance robot can move forward or backward on the high-voltage line.
[0050] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A clamping mechanism for a high-voltage line maintenance machine, comprising a frame (1) and wheels (2) rotatably connected to the frame (1), characterized in that: Both ends of the frame (1) are fixedly connected to a connecting frame (5), and a sliding groove (6) is provided at the bottom of the connecting frame (5). A guide groove (7) is symmetrically provided at the bottom opening of the sliding groove (6). The inner side of the slide groove (6) is symmetrically connected to a driven movable seat (8) with a right-angled trapezoidal structure. The bottom of the driven movable seat (8) is integrally formed with a guide block (9) that is slidably connected to the guide groove (7). A dovetail groove (10) is provided on the inclined surface of the driven movable seat (8). An electric telescopic rod (11) is installed at the top of the connecting frame (5); The movable end of the electric telescopic rod (11) passes through the top of the connecting frame (5) and is connected to an active movable seat (12) with an isosceles triangular structure. A dovetail slider (13) that is slidably connected to the dovetail groove (10) is integrally formed on the inclined surface of the active movable seat (12). The bottom of the driven movable seat (8) is equipped with a connecting seat (14), and a clamping wheel (15) is rotatably connected to the connecting seat (14).
2. The clamping mechanism for a high-voltage line maintenance machine according to claim 1, characterized in that: The two sides of the walking wheel (2) are respectively provided with a first drive motor (3) and a second drive motor (4) mounted on the frame (1), and the first drive motor (3) and the second drive motor (4) are used alternately to drive the walking wheel (2).
3. The clamping mechanism for a high-voltage line maintenance machine according to claim 1, characterized in that: The edge of the walking wheel (2) is integrally formed with a retaining edge.
4. The clamping mechanism for a high-voltage line maintenance machine according to claim 1, characterized in that: The top of the active movable seat (12) is symmetrically fixed with connecting ears.
5. The clamping mechanism for a high-voltage line maintenance machine according to claim 4, characterized in that: The movable end of the electric telescopic rod (11) has symmetrically provided mounting planes that fit with the connecting ears.
6. The clamping mechanism for a high-voltage line maintenance machine according to claim 1, characterized in that: The clamping wheel (15) is provided with an arc-shaped groove.
7. The clamping mechanism for a high-voltage line maintenance machine according to claim 1, characterized in that: The central axis of the clamping wheel (15) is perpendicular to the central axis of the traveling wheel (2).