A high-voltage cable lowering device for underground mining

Abstract

This utility model provides a high-voltage cable lowering device for underground mines, including a support frame. The support frame has a first rotating shaft and a second rotating shaft arranged parallel to each other, which are connected by a drive mechanism. The first rotating shaft has a first reel and a second reel, and the second rotating shaft has a third reel. A first connecting rope is wound on the first reel, a second connecting rope is wound on the second reel, and a third connecting rope is wound on the third reel. The bottom end of the first connecting rope is connected to a transport box, and the top of the transport box is connected to the bottom ends of the second and third connecting ropes. This utility model uses three reels on the support frame, connected to the transport box by three connecting ropes, ensuring the transport box remains stable during lowering. Furthermore, the use of a motor to drive the rotating shafts significantly saves manpower compared to manual operation; the structure is simple, the cost is low, and the operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of underground equipment technology and relates to a device for lowering high-voltage cables in underground mines. Background Technology

[0002] High-voltage cables are a type of power cable widely used in underground mines. A utility model patent with publication number CN213460894U discloses a "device for lowering high-voltage cables in inclined shafts." This device involves placing the cable into a transport bucket connected to a connecting rope, and then manually lowering the bucket to complete the cable lowering. When the transported cable is heavy, the operator needs to exert considerable effort and is prone to errors. If the bucket slips during lowering, it could easily fall to the ground and cause damage. Utility Model Content

[0003] The purpose of this utility model is to address the problem that existing cable lowering devices are prone to damage during operation, and to provide a high-voltage cable lowering device for underground mining.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A high-voltage cable lowering device for underground mining includes a support frame. The support frame has a first rotating shaft and a second rotating shaft arranged parallel to each other, which are tractively connected. The first rotating shaft has a first reel and a second reel, and the second rotating shaft has a third reel. A first connecting rope is wound on the first reel, a second connecting rope is wound on the second reel, and a third connecting rope is wound on the third reel. A transport box is connected to the bottom end of the first connecting rope, and the top of the transport box is connected to the bottom ends of the second and third connecting ropes. One end of the first rotating shaft is connected to a motor for driving the first rotating shaft to rotate.

[0006] Furthermore, the first rotating shaft is horizontally positioned.

[0007] Furthermore, the first and second shafts are connected by a chain drive.

[0008] Furthermore, the motor is a servo motor and is fixed on the bracket.

[0009] Furthermore, the transport container has a door on one side.

[0010] The advantages of this utility model are as follows: three pulleys are set on the support and connected to the transport box by three connecting ropes, which can ensure that the transport box remains stable during the lowering process. At the same time, the rotation of the shaft is driven by a motor, which greatly saves manpower compared with manual operation. The structure is simple, the cost is low, and the operation is convenient. Attached Figure Description

[0011] Figure 1 This is a schematic front view of the structure of this utility model;

[0012] Figure 2 This is a top view illustrating the structure of this utility model;

[0013] In the diagram, 1-support, 2-first rotating shaft, 3-second rotating shaft, 4-chain, 5-first reel, 6-second reel, 7-third reel, 8-first connecting rope, 9-second connecting rope, 10-third connecting rope, 11-transport box, 12-motor, 13-box door. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings:

[0015] like Figure 1 and 2 As shown, a high-voltage cable lowering device for underground mines includes a support 1, which can be installed at the mine entrance. The support 1 has a first rotating shaft 2 and a second rotating shaft 3 arranged parallel to each other. The first rotating shaft 2 is horizontally positioned, and the first rotating shaft 2 and the second rotating shaft 3 are located in the same horizontal plane. The first rotating shaft 2 and the second rotating shaft 3 are connected by a chain 4, with a transmission ratio of 1:1. The first rotating shaft 2 has a first reel 5 and a second reel 6 that can rotate with it, and the second rotating shaft 3 has a third reel 7. The first reel 5 and the second reel 6... The first reel 6 and the third reel 7 are arranged in a triangle. A first connecting rope 8 is wound around the first reel 5, a second connecting rope 9 is wound around the second reel 6, and a third connecting rope 10 is wound around the third reel 7. The bottom end of the first connecting rope 8 is connected to a transport box 11, allowing the cable to be placed below the transport box 11 down into the well. The top of the transport box 11 is connected to the bottom ends of the second and third connecting ropes 9 and 10. The connection points of the first, second, and third connecting ropes 8, 9, and 10 to the top of the transport box 11 are arranged in a triangle. The three connecting ropes connecting the transport box 11 ensure that it remains stable and does not shake during its descent.

[0016] One end of the first rotating shaft 2 is connected to a motor 12 for driving the first rotating shaft 2 to rotate. The motor 12 is fixed on the bracket 1. The motor 12 is a servo motor, so as to control the rotation speed and thus control the lowering speed. At the same time, the servo motor has a self-locking function, which can make the transport box 1 stop in time at the corresponding position. A box door 13 is provided on one side of the transport box 11.

[0017] The method of using this utility model is as follows:

[0018] First, install the bracket 1 at the wellhead position, place the cable into the transport box 11, and then start the motor 12 to drive the first rotating shaft 2 to rotate. At the same time, the first rotating shaft 2 drives the second rotating shaft 2 to rotate through the chain 4, thereby causing the first pulley 5, the second pulley 6, and the third pulley 7 to release the first connecting rope 8, the second connecting rope 9, and the third connecting rope 10, causing the transport box 11 to descend. Because of the connecting rope, the transport box 11 can be kept stable and does not shake during the descent. When the transport box 11 is close to the bottom, the descent can be stopped. The transport box 11 is kept under control and does not come into contact with the bottom of the well. Then, open the box door 13 and take out the cable inside the transport box 11. The whole process is time-saving, labor-saving, fast and convenient.

Claims

1. A device for lowering high-voltage cables in underground mines, characterized in that, The device includes a support (1), on which a first rotating shaft (2) and a second rotating shaft (3) are arranged in parallel to each other. The first rotating shaft (2) and the second rotating shaft (3) are connected in a transmission manner. The first rotating shaft (2) is provided with a first thread pulley (5) and a second thread pulley (6). The second rotating shaft (3) is provided with a third thread pulley (7). A first connecting rope (8) is wound on the first thread pulley (5). A second connecting rope (9) is wound on the second thread pulley (6). A third connecting rope (10) is wound on the third thread pulley (7). The bottom end of the first connecting rope (8) is connected to a transport box (11). The top of the transport box (11) is connected to the bottom ends of the second connecting rope (9) and the third connecting rope (10). One end of the first rotating shaft (2) is connected to a motor (12) for driving the first rotating shaft (2) to rotate.

2. The underground high-voltage cable lowering device for mines according to claim 1, characterized in that, The first rotating shaft (2) is set horizontally.

3. The underground high-voltage cable lowering device for mines according to claim 1, characterized in that, The first rotating shaft (2) and the second rotating shaft (3) are connected by a chain (4).

4. The underground high-voltage cable lowering device for mines according to claim 1, characterized in that, The motor (12) is a servo motor (12) and is fixed on the bracket (1).

5. A high-voltage cable lowering device for underground mining according to claim 1, characterized in that, The transport container (11) has a door (13) on one side.

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