Traveling wave cable fault detection device for power transmission line

Abstract

The utility model belongs to the technical field of cable detection, in particular to a traveling wave cable fault detection device for a power transmission line, which is characterized in that a detection box body is provided with a threading hole, the inner side wall of the detection box body is provided with a sliding groove, two groups of adjusting plates are slidably connected in the sliding groove, and first auxiliary rollers are slidably connected onto the two groups of adjusting plates; a motor is arranged on one group of adjusting plates, and the first auxiliary roller is driven by the motor; a guide column and a two-way lead screw are arranged in the detection box body, the guide column is in sliding connection with the two adjusting plates and is in threaded connection with the two-way lead screw, and an adjusting handle is arranged at one end of the two-way lead screw; a plurality of groups of auxiliary plates are arranged on the detection box body in the circumferential direction at intervals, damping rods are arranged on the auxiliary plates, guide plates are arranged at the output ends of the damping rods, second auxiliary rollers are rotationally connected to the inner side walls of the guide plates, and reset springs are arranged between the guide plates and the auxiliary plates; and a detector is arranged on one group of adjusting plates.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable detection, and specifically relates to a traveling wave cable fault detection device for a power transmission line. Background Art

[0002] A cable is usually a cable similar to a rope formed by stranding several or several groups of wires (at least two wires in each group). The wires in each group are insulated from each other and are often twisted around a center, and the whole is wrapped with a highly insulating covering layer. A cable has the characteristics of being energized inside and insulated outside. A traveling wave refers to a transmission state of a plane wave on a transmission line, and its amplitude changes exponentially along the propagation direction, and its phase changes linearly along the transmission line.

[0003] Since the distance between two moving rollers of the current detection device is fixed at present, the detection and warning device is only applicable to cables of one size, and the applicable range is low, and when the detection device is walking, the stability is not strong.

[0004] Therefore, the utility model designs a traveling wave cable fault detection device for a power transmission line to solve the technical problems existing in the prior art. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a traveling wave cable fault detection device for a power transmission line to solve the above technical problems.

[0006] The solution adopted by the utility model is as follows: a traveling wave cable fault detection device for a power transmission line, including a detection box body and a detector, characterized in that:

[0007] The detection box body is provided with a wire passing hole, and the inner side wall is provided with a sliding groove. Two groups of adjusting plates are slidably connected in the sliding groove. A first auxiliary roller is slidably connected to the two groups of adjusting plates. A motor is arranged on one of the two groups of adjusting plates, and the first auxiliary roller is driven by the motor;

[0008] A guide post and a bidirectional lead screw are arranged inside the detection box body. The guide post is slidably connected to the two groups of adjusting plates and is threadedly connected to the bidirectional lead screw. One end of the bidirectional lead screw is provided with an adjusting handle;

[0009] A plurality of groups of auxiliary plates are arranged on the detection box body at intervals along the circumferential direction. A damping rod is arranged on the plurality of groups of auxiliary plates. A guide plate is arranged at the output end of the damping rod. A second auxiliary roller is rotatably connected to the inner side wall of the guide plate. A return spring is arranged between the guide plate and the auxiliary plate;

[0010] A detector is arranged on one of the two groups of adjusting plates.

[0011] Preferably, four groups of auxiliary plates are circumferentially and spacedly arranged on the detection box body. The four groups of auxiliary plates are evenly spaced on the detection box body and are arranged corresponding to the wire threading holes. The guide plate is arranged as an arc-shaped plate, and the second auxiliary roller is arranged as an arc-shaped auxiliary roller.

[0012] Preferably, a plurality of heat dissipation holes corresponding to the detector are spacedly arranged on the detection box body, and a wind guide plate corresponding to the heat dissipation holes is arranged on the detection box body.

[0013] Preferably, two detectors are arranged on one of the adjusting plates. The two detectors are located at both ends of the adjusting plate and are symmetrically arranged.

[0014] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0015] Figure 1 is one of the perspective views of the three-dimensional diagram of the present utility model.

[0016] Figure 2 is one of the sectional perspective views of the three-dimensional diagram of the present utility model.

[0017] Figure 3 is the second sectional perspective view of the three-dimensional diagram of the present utility model.

[0018] Reference numerals: 1, detection box body; 2, detector; 3, wire threading hole; 4, sliding groove; 5, adjusting plate; 6, first auxiliary roller; 7, motor; 8, guiding column; 9, bidirectional lead screw; 10, adjusting handle; 11, auxiliary plate; 12, damping rod; 13, guide plate; 14, second auxiliary roller; 15, return spring; 16, heat dissipation hole; 17, wind guide plate. Detailed Description of the Embodiment

[0019] Regarding the foregoing and other technical contents, features and effects of the present utility model, they will be clearly presented in the following detailed description in conjunction with the reference Figures 1-3 In the following detailed description of the embodiments, the structural contents mentioned in the following embodiments are all with reference to the drawings of the specification.

[0020] Next, various exemplary embodiments of the present utility model will be described with reference to the drawings.

[0021] Embodiment 1, a traveling wave cable fault detection device for a transmission line, comprising a detection box body 1 and a detector 2, characterized in that:

[0022] The detection box body 1 is provided with a wire threading hole 3, and the inner side wall is provided with a sliding groove 4. Two groups of adjusting plates 5 are slidably connected in the sliding groove 4. A first auxiliary roller 6 is slidably connected to the two groups of adjusting plates 5. A motor 7 is provided on one of the adjusting plates 5, and the first auxiliary roller 6 is driven by the motor 7;

[0023] A guiding column 8 and a bidirectional lead screw 9 are arranged inside the detection box body 1. The guiding column 8 is slidably connected to the two groups of adjusting plates 5 and is threadedly connected to the bidirectional lead screw 9. One end of the bidirectional lead screw 9 is provided with an adjusting handle 10;

[0024] A plurality of groups of auxiliary plates 11 are arranged on the detection box body 1 at circumferential intervals. A damping rod 12 is arranged on the plurality of groups of auxiliary plates 11. A guiding plate 13 is arranged at the output end of the damping rod 12. A second auxiliary roller 14 is rotatably connected to the inner side wall of the guiding plate 13. A return spring 15 is arranged between the guiding plate 13 and the auxiliary plate 11;

[0025] A detector 2 is arranged on one of the adjusting plates 5;

[0026] Four groups of auxiliary plates 11 are arranged on the detection box body 1 at circumferential intervals. The four groups of auxiliary plates 11 are evenly spaced on the detection box body 1 and are arranged corresponding to the wire threading hole 3. The guiding plate 13 is arranged as an arc-shaped plate, and the second auxiliary roller 14 is arranged as an arc-shaped auxiliary roller;

[0027] A plurality of groups of heat dissipation holes 16 corresponding to the detector 2 are spacedly arranged on the detection box body 1. A wind guiding plate 17 corresponding to the heat dissipation holes 16 is arranged on the plurality of groups of detection box bodies 1;

[0028] Two detectors 2 are arranged on one of the adjusting plates 5. The two detectors 2 are located at both ends of the adjusting plate and are symmetrically arranged.

[0029] During use, by rotating the adjusting handle 10, the bidirectional lead screw 9 is driven. Since the two groups of adjusting plates 5 are respectively threadedly connected to the positive and negative threaded ends of the bidirectional lead screw 9, the rotation of the bidirectional lead screw 9 drives the two groups of adjusting plates 5 to move relatively. In the initial state, the distance between the two groups of adjusting plates 5 is the maximum value;

[0030] After adjustment, the detection cable is inserted into the wire threading hole 3 provided on the detection box body 1. Under the action of the damping rod 12 and the return spring 15, the second auxiliary roller 14 (arc-shaped rotating roller) rotatably connected to the guiding plate 13 is in close contact with the detection cable. After the detection cable passes through the cable, the adjusting handle 10 is rotated to drive the bidirectional lead screw 9 to rotate, so that the two groups of adjusting plates 5 move closer to the central position until the first auxiliary roller 6 rotatably connected to the adjusting plate 5 is in contact with the detection cable;

[0031] At this time, the driving motor 7 drives one group of the first auxiliary rollers 6 to rotate, so that the detection box body 1 can move along the detection cable. During the movement, the two detectors 2 located on the upper adjusting plate 5 can detect the cable, realizing the automatic detection function and improving the detection efficiency.

[0032] With the action of the first auxiliary roller 6 and the second auxiliary roller 14 in this application, the stability of the detection box body 1 moving on the detection cable can be improved. By rotating the adjusting handle 10, different cables can be detected, with wide versatility.

[0033] Under the action of the heat dissipation holes 16 and the air guide plate 17, when the detection box body 1 moves on the detection cable, the internal detection components of the detection box body 1 are cooled, avoiding damage to the electrical components due to overheating.

[0034] The above description is only for explaining the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various flexible forms conforming to the idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A traveling wave cable fault detection device for a power transmission line, comprising a detection box (1) and a detector (2), characterized in that: The detection box body (1) is provided with a threading hole (3), and the inner side wall is provided with a sliding groove (4), two groups of adjustment plates (5) are slidably connected in the sliding groove (4), and the two groups of adjustment plates (5) are slidably connected to first auxiliary rollers (6), one group of the adjustment plates (5) is provided with a motor (7), and the first auxiliary roller (6) is driven by the motor (7); The detection box (1) is provided with a guide column (8) and a bidirectional lead screw (9) inside. The guide column (8) is slidably connected to the two sets of adjustment plates (5) and is threadedly connected to the bidirectional lead screw (9). An adjustment handle (10) is provided at one end of the bidirectional lead screw (9). The detection box (1) is provided with a plurality of auxiliary plates (11) at intervals along the circumferential direction, the auxiliary plates (11) are provided with damping rods (12), the output end of the damping rod (12) is provided with a guide plate (13), the inner side wall of the guide plate (13) is rotatably connected to a second auxiliary roller (14), and a return spring (15) is provided between the guide plate (13) and the auxiliary plate (11); One group of the adjustment plates (5) is provided with a detector (2).

2. A traveling wave cable fault detection device for a power transmission line according to claim 1, characterized in that: Four groups of auxiliary plates (11) are arranged at intervals along the circumferential direction on the detection box (1); the four groups of auxiliary plates (11) are evenly spaced on the detection box (1) and are located corresponding to the threading holes (3); the guide plate (13) is an arc-shaped plate, and the second auxiliary roller (14) is an arc-shaped auxiliary roller.

3. A traveling wave cable fault detection device for a power transmission line according to claim 2, characterized in that: An array of heat dissipation holes (16) corresponding to the detectors (2) are provided on the detection box (1) at intervals, and an air guide plate (17) corresponding to the heat dissipation holes (16) is provided on the detection box (1).

4. A traveling wave cable fault detection device for a power transmission line according to claim 3, characterized in that: One group of the adjustment plates (5) is provided with two groups of detectors (2), and the two groups of detectors (2) are located at two ends of the adjustment plate (5) and are symmetrically arranged.

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