Underground electric locomotive overhead line straightening tool

Abstract

The utility model discloses an underground electric locomotive overhead line straightening tool which comprises a rod body, one end of the rod body is fixedly connected with a rolling wheel installation frame, the rolling wheel installation frame is arranged in an L shape, rolling wheels are fixed to the two ends of the rolling wheel installation frame respectively, the side wall of the rod body is fixedly connected with a high-voltage electroscope, and the high-voltage electroscope has the length telescopic function. And electricity testing can be carried out on the cable clamped between the two rollers. The underground electric locomotive overhead line straightening tool can well straighten a bent cable, so that a pantograph and the cable are in good contact, and the stability of power supply is ensured. And the tool is provided with the high-voltage electroscope, so that whether the cable is electrified or not can be detected before construction, and the construction safety of workers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of downhole equipment maintenance technology, specifically a tool for straightening overhead power lines of downhole locomotives. Background Technology

[0002] In mine operations, electric locomotives, as crucial transportation equipment, are prone to bending and deformation due to the long-term effects of the tunnel environment (such as humidity, dust, and mechanical vibration) and frequent movement. Since underground electric locomotive overhead lines are typically bare wires without insulation, deformation not only increases transmission loss and affects power supply stability, but can also lead to breakage or short circuits due to localized stress concentration in the exposed conductors, directly threatening mine electrical safety. Furthermore, working with bare cables while they are energized poses a higher risk of electric shock to operators. Therefore, safe and efficient straightening and maintenance of cables has become a critical challenge in mine equipment management. Utility Model Content

[0003] The purpose of this utility model is to provide a tool for straightening overhead power lines of underground locomotives to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tool for straightening overhead power lines of underground locomotives, comprising a rod body, a roller mounting frame fixedly connected to one end of the rod body, the roller mounting frame being L-shaped and having rollers fixed at both ends, and a high-voltage detector fixedly connected to the side wall of the rod body, the high-voltage detector having a length extension function, capable of testing the voltage of the cable clamped between the two rollers.

[0005] Preferably, one end of the roller mounting bracket is provided with multiple mounting holes for adjusting the mounting position of the roller at that end, while the other end is provided with one mounting hole, and the position of the roller cannot be adjusted.

[0006] Preferably, the middle part of the roller is concave and curved to ensure that the roller will not fall off the cable, and the end of the roller is provided with a through hole, which is connected to the mounting hole and fixed by bolts.

[0007] Preferably, the high-voltage detector includes a handle, a telescopic sleeve is fixedly connected to the end of the handle, a circuit module is fixedly connected to the telescopic end of the telescopic sleeve, the circuit module is electrically connected to the detection probe, the handle is detachably mounted on the pole, and an alarm device is installed inside the circuit module.

[0008] Preferably, a fixing clip is fixedly connected to the middle of the rod for mounting the grip.

[0009] Preferably, the fixing block includes a first clamp and a second clamp. The first clamp is fixed to the rod body, and the second clamp is fixed to the first clamp by bolts. The opposite sides of the first clamp and the second clamp are set in a groove, and the handle is inserted into the groove.

[0010] Preferably, an insulating sleeve is fitted onto the end of the rod away from the roller mounting bracket.

[0011] Preferably, a reinforcing rib is provided at the connection between the roller mounting bracket and the rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model discloses a tool for straightening overhead power lines for underground electric locomotives. It effectively straightens bent cables, ensuring good contact between the pantograph and the cable and guaranteeing stable power supply. Furthermore, the tool is equipped with a high-voltage detector, allowing for pre-construction checks to verify cable energization, thus ensuring worker safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 A schematic diagram of the rod and roller mounting frame structure;

[0016] Figure 3 This is a schematic diagram of the roller structure;

[0017] Figure 4 This is a schematic diagram of the fixed clamping block structure;

[0018] Figure 5 This is a schematic diagram of the high-voltage detector in its retracted state.

[0019] Figure 6 This is a schematic diagram of the high-voltage detector in its deployed state.

[0020] In the diagram: 1. Rod body; 2. Roller mounting bracket; 3. Through hole; 4. Mounting hole; 5. Roller; 6. Reinforcing rib; 7. Fixing clamp; 71. Clamp one; 72. Clamp two; 73. Groove; 8. High voltage detector; 81. Handle; 82. Telescopic sleeve; 83. Circuit module; 84. Detection probe; 9. Insulating sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1As shown, the underground locomotive overhead line straightening tool in this embodiment mainly consists of a rod 1, a roller mounting frame 2, rollers 5, and a high-voltage detector 8. The components are mechanically connected and functionally integrated to achieve the dual functions of cable straightening and voltage detection.

[0023] The rod body 1 serves as the main body of the tool, with an insulating sleeve 9 at its end to ensure operator safety. A fixing clamp 7 is fixedly connected to the middle of the rod body 1 for detachable installation of the high-voltage detector 8, and a roller mounting bracket 2 is fixedly connected to one end. The roller mounting bracket 2 has an L-shaped structure, and a reinforcing rib 6 is provided at the connection between the roller mounting bracket 2 and the rod body 1 to improve structural strength.

[0024] The roller mounting bracket 2 has a single mounting hole 4 at one end to fix a roller 5, and multiple mounting holes 4 (such as 3-5 evenly distributed holes) at the other end to connect another roller 5 with bolts, so as to realize the position adjustment of the roller 5 at this end.

[0025] The middle part of roller 5 is machined into an arc-shaped concave structure, with the curvature matching the outer diameter of common mining cables, such as Φ20-Φ50mm, to ensure that the cable is not easily slipped after being embedded. A through hole 3 is opened at the end, which is aligned with the mounting hole 4 and fixed by bolts. The rollers at the multi-hole end of the roller mounting bracket 2 can adjust the spacing by selecting different hole positions. The adjustment of the position of roller 5 can adapt to various bending sections on the cable.

[0026] refer to Figure 5 and Figure 6 The high-voltage detector 8 consists of a handle 81, a telescopic sleeve 82, a circuit module 83, and a detection probe 84. The handle 81 is made of insulating material and can be detachably installed in the fixing block 7 of the pole body 1. The telescopic sleeve 82 adopts a multi-stage sleeve structure and can be manually stretched and adjusted in length ranging from 0.3 to 1.2m to meet different working distance requirements. The detection probe 84 is made of metal and is connected to alarm devices such as LED lights and buzzers through the voltage detection chip in the circuit module 83 to realize the live detection function.

[0027] The mounting structure of the fixing block 7 is as follows Figure 4 The fixing clamp 7 adopts a split design, including clamp block one 71, which is fixedly welded to the middle of the rod body 1, with a semi-cylindrical groove 73 on its inner side; and clamp block two 72, which is connected to clamp block one 71 by bolts, with another semi-cylindrical groove 73 on its inner side at a corresponding position. The two together form a complete cylindrical chamber. The handle 81 of the high-voltage detector is inserted into the groove 73, and the bolts are tightened to clamp the handle 81 with clamp block one 71 and clamp block two 72, achieving detachable fixing.

[0028] Working principle: 1) Cable straightening operation: Adjust the position of the rollers at the multi-hole end of the roller mounting bracket 2 according to the cable diameter: After adjusting the rollers to the appropriate hole positions, fix them. Hold the rod 1 and insert the cable into the arc-shaped recess of the two rollers, then turn the tool like a wrench to straighten the bent part of the cable.

[0029] 2) Voltage detection function: Before straightening, stretch the telescopic sleeve 82 to the required length. Place the detection probe 84 in contact with the cable. If the circuit module 83 detects an induced voltage, it will trigger an audible and visual alarm to indicate that the cable is energized, ensuring operational safety.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool for straightening overhead power lines of underground locomotives, comprising a rod (1), characterized in that: One end of the pole (1) is fixedly connected to a roller mounting bracket (2). The roller mounting bracket (2) is L-shaped and has rollers (5) fixed at both ends. A high voltage detector (8) is fixedly connected to the side wall of the pole (1). The high voltage detector (8) has a length extension function and can test the voltage of the cable clamped between the two rollers (5).

2. The underground locomotive overhead line straightening tool according to claim 1, characterized in that: The roller mounting bracket (2) has multiple mounting holes (4) at one end to adjust the mounting position of the roller (5) at that end, and one mounting hole (4) at the other end, where the position of the roller (5) cannot be adjusted.

3. The underground locomotive overhead line straightening tool according to claim 2, characterized in that: The middle part of the roller (5) is concave and arc-shaped to ensure that the roller (5) will not fall off the cable. The end of the roller (5) is provided with a through hole (3), which is connected to the mounting hole (4) and fixed by bolts.

4. The underground locomotive overhead line straightening tool according to claim 1, characterized in that: The high voltage detector (8) includes a handle (81), a telescopic sleeve (82) is fixedly connected to the end of the handle (81), a circuit module (83) is fixedly connected to the telescopic end of the telescopic sleeve (82), the circuit module (83) is electrically connected to the detection probe (84), the handle (81) is detachably installed on the rod (1), and an alarm device is installed inside the circuit module (83).

5. The underground locomotive overhead line straightening tool according to claim 4, characterized in that: A fixing clip (7) is fixedly connected to the middle of the rod (1) for installing the handle (81).

6. The underground locomotive overhead line straightening tool according to claim 5, characterized in that: The fixing block (7) includes a first clamp (71) and a second clamp (72). The first clamp (71) is fixed on the rod (1). The second clamp (72) and the first clamp (71) are fixed together by bolts. The first clamp (71) and the second clamp (72) are set on opposite sides in the groove (73). The handle (81) is inserted into the groove (73).

7. The underground locomotive overhead line straightening tool according to claim 1, characterized in that: An insulating sleeve (9) is fitted at one end of the rod (1) away from the roller mounting bracket (2).

8. The underground locomotive overhead line straightening tool according to claim 1, characterized in that: A reinforcing rib (6) is provided at the connection between the roller mounting bracket (2) and the rod (1).

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