A stress relief device for steel wire ropes used in mine ropeways

Abstract

The present invention discloses a stress relief device for a wire rope used in a mining ropeway, which relates to the technical field of mining equipment. The device comprises a wire rope fixing and adjusting mechanism and an electronic meter. The wire rope fixing and adjusting mechanism is symmetrically arranged in two groups, and the two ends of the electronic meter are respectively connected to the wire rope fixing and adjusting mechanism. The wire rope fixing and adjusting mechanism comprises a U-shaped frame base, a U-shaped adjusting bolt, an adjusting nut, and an adjusting base. The U-shaped frame base is provided with adjustment holes at both ends. The U-shaped adjusting bolt passes through the adjustment hole of the U-shaped frame base and is threadedly connected to the adjusting nut. The U-shaped frame base is provided with a through hole in the center. The adjusting base is installed in the center of the U-shaped frame base, and the wire rope is fixed to the adjusting base through the through hole. The present invention can effectively eliminate the internal stress of the wire rope used in a mining ropeway, preventing the hanging chair from rolling and hitting the wall or colliding.

Description

Technical Field

[0001] The invention belongs to the technical field of mining equipment, and in particular relates to a stress relief device for a mine ropeway steel wire rope. Background Art

[0002] like Figure 1-2 As shown in the figure, a mining ropeway (overhead passenger device) is a type of transport equipment that uses a steel wire rope to traction and circulates its load. It is primarily used to transport personnel in inclined and horizontal lanes of mines. It uses an electric motor to drive a friction wheel on a reducer as the drive mechanism, and an overhead, infinitely circulating steel wire rope as the traction load. The wire rope is primarily tensioned by a tail tensioner and supported by sheaves along the way to maintain its freeness and tension between the supporting sheaves. A rope grip connects the passenger chair to the steel wire rope, which then circulates to transport personnel.

[0003] like Figure 3 As shown, current overhead passenger systems have a serious problem: a newly installed wire rope automatically rotates around its axis when tension is applied. If a chair is attached, this means the chair will rotate significantly, even 360 degrees, around the wire rope. This irregular rotation can undoubtedly cause serious accidents, including casualties and equipment damage. The reason for the wire rope's rotation around its axis is that the torsional stress within the wire rope has not been eliminated. When subjected to tension and capable of twisting freely, the rope automatically twists to release the stress.

[0004] In order to solve the problem of torsional internal stress generated by the wire rope, equipment manufacturers use counterweight balancing to eliminate internal stress and torsional force in order to meet the vertical requirements of the hanging chair. However, this method cannot fundamentally eliminate the problem of torsional internal stress. Because the diameters of the wire ropes used by customers are different, the lengths vary from 200 meters to 2000 meters, and the bearing capacity is constantly changing, the installation and commissioning of the equipment is extremely difficult.

[0005] Many cases have shown that changes in stress and torque within wire ropes have brought great difficulties to the commissioning of many equipment, delaying the project for several months. Repeated replacement of wire ropes has also been difficult to achieve satisfactory results, and may even cause safety accidents of varying degrees.

[0006] Therefore, how to provide a mining ropeway wire rope stress relief device that can completely eliminate the internal stress and torque of the wire rope before it is installed on the equipment for use to ensure that the safety of the equipment and passengers is not affected has become a problem that technical personnel in this field need to solve. Summary of the Invention

[0007] In view of this, the present invention provides a stress relief device for wire ropes used in mining ropeways. The present invention eliminates internal stress and torque before connecting the wire ropes in a ring shape, which can appropriately reduce the counterweight (only maintain the counterweight that achieves the tensioning effect), save money, greatly shorten the debugging period, reduce wire rope consumption, and eliminate safety hazards.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a stress relief device for a wire rope of a mining ropeway, comprising a wire rope fixing and adjusting mechanism and an electronic meter, wherein the wire rope fixing and adjusting mechanism is symmetrically arranged in two groups, and the two ends of the electronic meter are respectively hung on the wire rope fixing and adjusting mechanism, and the wire rope fixing and adjusting mechanism comprises a U-shaped frame base, a U-shaped adjusting bolt, an adjusting nut and an adjusting base, and adjustment holes are provided at both ends of the U-shaped frame base, and the U-shaped adjusting bolt passes through the adjustment hole of the U-shaped frame base and is threadedly connected with the adjusting nut, and a through hole is provided in the center of the U-shaped frame base, and the adjusting base is installed in the center of the U-shaped frame base, and the wire rope is fixed on the adjusting base through the through hole.

[0009] Furthermore, the adjustment base includes a bearing base, a fixing bolt, a bearing and a wire rope clip. The bearing base is installed on the U-shaped frame base through the fixing bolt. The bearing base is a hollow structure. The bearing is installed at one end of the bearing base. The wire rope clip is located on the side of the bearing base where the bearing is installed. The wire rope clip is fixed to the wire rope passing through the bearing base.

[0010] Furthermore, an annular gasket is provided between the bearing and the wire rope buckle.

[0011] Furthermore, the bearing is a plane thrust bearing.

[0012] Furthermore, the wire rope buckle includes a clamping plate and a clamping bolt. The clamping plates are located on both sides of the wire rope, and the clamping bolts are installed on the clamping plates to fix and lock the wire rope.

[0013] The beneficial effects of the present invention are:

[0014] The present invention eliminates the internal stress and torque before the steel wire rope is connected in a ring shape, and then the connection is carried out, which can effectively prevent the hanging chair from rolling and hitting the wall or colliding when the steel wire rope automatically releases the internal stress, eliminates safety hazards, and can also greatly reduce the debugging period. It can also appropriately reduce the counterweight (only maintain the counterweight that achieves the tensioning effect), reduce the consumption of steel wire rope, and save investment funds. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the existing mining ropeway wire rope;

[0016] Figure 2 This is a top view of the existing mine cableway wire rope;

[0017] Figure 3 This is a schematic diagram of stress relief for existing mine ropeway wire ropes;

[0018] Figure 4 A top view of the present invention;

[0019] Figure 5 This is a cross-sectional view of the steel wire rope fixing and adjusting mechanism of the present invention;

[0020] Figure 6 This is a side view of the steel wire rope fixing and adjusting mechanism of the present invention;

[0021] Figure 7 This is a front view of the wire rope buckle of the present invention.

[0022] In the figure: 1-tunnel; 2-wire rope; 3-chair; 4-driving wheel; 5-tail wheel; 6-counterweight; 7-electronic meter; 8-U-shaped frame base; 9-U-shaped adjusting bolt; 10-adjusting nut; 11-bearing base; 12-fixing bolt; 13-bearing; 14-ring gasket; 15-clamping plate; 16-clamping bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "horizontal", "inner", "outer", "one side", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] like Figure 4-7As shown, the present invention provides a wire rope stress relief device for a mining ropeway, comprising a wire rope fixing and adjusting mechanism and an electronic meter 7. The wire rope fixing and adjusting mechanism is symmetrically arranged in two groups, and both ends of the electronic meter 7 are respectively hung on the wire rope fixing and adjusting mechanism. The wire rope fixing and adjusting mechanism comprises a U-shaped frame base 8, a U-shaped adjusting bolt 9, an adjusting nut 10 and an adjusting base. Adjustment holes are provided at both ends of the U-shaped frame base 8. The U-shaped adjusting bolt 9 passes through the adjustment hole of the U-shaped frame base 8 and is threadedly connected to the adjusting nut 10. A through hole is provided in the center of the U-shaped frame base 8. The adjusting base is installed in the center of the U-shaped frame base 8, and the wire rope 2 passes through the through hole and is fixed on the adjusting base.

[0027] The adjusting base includes a bearing base 11, a fixing bolt 12, a bearing 13 and a wire rope clip. The bearing base is installed on the U-shaped frame base 8 through the fixing bolt 12. The bearing base 11 is a hollow structure, which is the same size as the through hole of the U-shaped frame base 8 and is concentrically arranged. The bearing 13 is installed at one end of the bearing base 11, and the wire rope clip is located on the side where the bearing 1 is installed in the bearing base 11. The wire rope clip includes a clamping plate 15 and a clamping bolt 16. The clamping plate 15 is located on both sides of the wire rope 2. The clamping bolt 16 is installed on the clamping plate 15 for fixing and locking the wire rope 2. The wire rope clip is fixed on the wire rope 2 passing through the bearing base 11. An annular gasket 14 is provided between the bearing 13 and the wire rope clip. The bearing 13 in this embodiment is a planar thrust bearing, which can ensure that the wire rope clip does not get stuck when the wire rope 2 rotates.

[0028] The present invention is used as follows: first, the two ends of the wire rope 2 wrapped around the driving wheel 4 and the tail wheel 5 are respectively passed through the U-shaped frame base 8 and fixed to the wire rope buckle, and the U-shaped adjusting bolt 9 is installed on the U-shaped frame base 8 through the adjusting nut 10. The two ends of the U-shaped adjusting bolt 9 are respectively connected to the hook of the electronic meter 7. The electronic meter 7 can display the tension value. The static tension of the wire rope is adjusted by changing the distance between the driving wheel 4 and the tail wheel 5. As the distance increases, the two ends of the wire rope 2 fixed to the U-shaped frame base will rotate in two different directions. This rotation actually eliminates the torsion of the wire rope and eliminates the internal stress caused by the extension of the rigidity of the wire rope. When the static tension of the wire rope reaches the required value, that is, the electronic meter 7 displays a value that meets the requirements, the adjustment distance of the two wheels is stopped, the wire rope 2 stops rotating, and the two wire rope ends are connected without loosening the wire rope buckle. The driving wheel 4 and the tail wheel 5 are adjusted again. When the electronic display value returns to the predetermined value, the torsion and internal stress of the annular wire rope disappear. The present invention avoids the need to balance and eliminate internal stress and torsion by setting too many counterweights 6, so that the hanging chair 3 can meet the vertical requirements, reduce wire rope consumption, and save investment funds.

[0029] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stress relief device for a mining ropeway wire rope, characterized by: It includes a wire rope fixing and adjusting mechanism and an electronic meter, wherein the wire rope fixing and adjusting mechanism is symmetrically arranged in two groups, and the two ends of the electronic meter are respectively hung on the wire rope fixing and adjusting mechanism. The wire rope fixing and adjusting mechanism includes a U-shaped frame base, a U-shaped adjusting bolt, an adjusting nut and an adjusting base. Adjustment holes are provided at both ends of the U-shaped frame base. The U-shaped adjusting bolt passes through the adjustment hole of the U-shaped frame base and is threadedly connected to the adjusting nut. A through hole is provided in the center of the U-shaped frame base. The adjusting base is installed in the center of the U-shaped frame base, and the wire rope passes through the through hole and is fixed to the adjusting base. The device adjusts the distance between the driving wheel and the tail wheel so that the two ends of the wire rope rotate in opposite directions through the wire rope fixing and adjusting mechanism to eliminate internal stress, and the electronic meter displays the tension value in real time.

2. A mine ropeway wire rope stress relief device according to claim 1, characterized in that: The adjustment base includes a bearing base, a fixing bolt, a bearing and a wire rope clip. The bearing base is installed on the U-shaped frame base through the fixing bolt. The bearing base is a hollow structure. The bearing is installed at one end of the bearing base. The wire rope clip is located on the side where the bearing is installed in the bearing base. The wire rope clip is fixed to the wire rope passing through the bearing base.

3. A mine ropeway wire rope stress relief device according to claim 2, characterized in that: An annular gasket is provided between the bearing and the wire rope buckle.

4. A mine ropeway wire rope stress relief device according to claim 2, characterized in that: The bearing is a plane thrust bearing.

5. The stress relief device for a mining ropeway wire rope according to claim 2, characterized in that: The wire rope buckle includes a clamping plate and a clamping bolt. The clamping plate is located on both sides of the wire rope, and the clamping bolt is installed on the clamping plate to fix and lock the wire rope.

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