Multi-rope friction type mine hoist

Abstract

The multi-rope friction type mine hoist comprises a friction wheel and a head sheave, a steel wire rope surrounds the friction wheel and the head sheave, hoisting containers are arranged at the two ends of the steel wire rope respectively, tail ropes are arranged at the bottoms of the hoisting containers, the two ends of the tail ropes are connected to the hoisting containers respectively, and an anti-slip device is arranged on the front side of the friction wheel. And the steel wire rope penetrates through the anti-slip device. The invention belongs to the technical field of mine hoists. The friction wheel hub is attached to the steel wire rope, when the slipping steel wire rope slides rapidly, the rotating speed of the friction wheel hub is increased, the centrifugal force of the speed measuring sliding block on the friction wheel hub is increased, the connecting rod is driven to move outwards, the connecting rod drives the poke rod to move, and the poke rod pushes friction wedge blocks on the two sides of the rope clamping plate to get close to the limiting block; the rope clamping plate is extruded by the limiting block to be clamped on the steel wire rope, and gradually-increased friction force between the rope clamping plate and the steel wire rope prevents the steel wire rope from further slipping to cause equipment damage or accidents.

Description

Technical Field

[0001] The invention belongs to the technical field of mine hoists, and in particular relates to a multi-rope friction mine hoist. Background Art

[0002] The task of multi-rope friction mine hoisting equipment is to lift personnel and materials, hoist equipment, gangue, useful ore, etc. Therefore, it is the link between the ground and underground. Whether the mine can produce normally depends to a large extent on whether the hoisting equipment can operate normally. Its reliability in operation directly affects the safety of mine personnel and equipment. Multi-rope friction hoisting equipment has light structure, large lifting capacity, small power, low energy consumption, safety and reliability, and significant benefits. Especially when the load is large in deep mines, its advantages are more obvious. Therefore, it has been widely used at home and abroad. However, multi-rope friction hoists are prone to rope slip accidents during the lifting process.

[0003] There are many reasons why a multi-rope friction hoist may slip during use. For example, after long-term use, the surface of the wire rope may be worn or corroded, resulting in a smaller diameter, and the friction force cannot meet the demand for supporting the weight of the goods, causing slippage. Or the weight of the goods carried by the multi-rope friction hoist is unevenly distributed, which may cause a large friction difference between the pulleys, causing one of the wire ropes to escape prematurely, eventually leading to slippage. When slippage occurs, if the operator does not discover and take measures in time, it may cause equipment damage to increase, or even cause serious accidents such as hoist collapse, threatening the life safety of the operator. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a multi-rope friction mine hoist, which effectively solves the above problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a multi-rope friction mine hoist, including a friction wheel, a sheave and a steel wire rope, the steel wire rope is wrapped around the friction wheel and the sheave, and hoisting containers are respectively provided at both ends of the steel wire rope, and a tail rope is provided at the bottom of the hoisting container, and the two ends of the tail rope are respectively connected to the hoisting container, and an anti-skid device is provided on the front side of the friction wheel, and the steel wire rope passes through the anti-skid device; the anti-skid device includes an anti-skid device body, a limit block, a rope clamp, a friction wedge and a toggle rod, fixed seats are provided on both sides of the anti-skid device body, and a central center is provided at the center of the anti-skid device body. The core shell and the hub shaft, the hub shaft is located on the lower side of the center shell, the center shell is provided with a linear array of rope holes passing through it, the steel wire rope passes through the rope hole, the center shell is linearly provided with a clamping plate fixing rod, the clamping plate fixing rod is located above the rope hole, the rope clamp is provided on the clamping plate fixing rod, the bottom of the center shell is provided with a linear array of installation grooves, the installation groove is located below the rope hole, the limit block is provided in the installation groove, the upper and lower sides of the installation groove are symmetrically provided with toggle rod slide grooves, the friction wedge is provided on the rope clamp, and the toggle rod is provided on the toggle rod slide groove.

[0006] Furthermore, the limit block is symmetrically provided with limit grooves above and below, a toggle rod groove is provided at the center of the limit block, connecting rod grooves are symmetrically provided on the left and right sides of the limit block, the friction wedge block is located in the limit groove, the limit groove gradually narrows from the center of the limit block to the upper and lower ends, and the limit groove gradually narrows from the outside to the inside.

[0007] Furthermore, the rope clamp is provided with a fixed end, a rope groove and a pressure plate, the rope groove is located between the fixed end and the pressure plate, the fixed end is arranged on the clamp fixing rod, the steel wire rope passes through the rope groove, and the pressure plate is provided with a friction wedge positioning groove.

[0008] Furthermore, the friction wedge gradually becomes thinner from left to right, and the friction wedge gradually becomes thinner from the center to the upper and lower edges. A mounting column is provided at the bottom of the friction wedge, and a wedge return spring is provided on the mounting column. The mounting column is arranged in the friction wedge positioning groove, and the end of the wedge return spring is arranged on the inner wall of the friction wedge positioning groove.

[0009] Furthermore, the toggle rod is provided with a sliding part, a connecting part and a toggle part, the connecting part is located between the sliding part and the toggle part, the sliding part slides in the toggle rod sliding groove, the toggle rod is located in the toggle rod groove, and the toggle part is attached to the wide side of the friction wedge block.

[0010] Furthermore, the anti-skid device also includes a wheel hub speed measuring assembly, a connecting rod and a friction hub, the wheel hub speed measuring assembly is arranged on the wheel hub shaft, the connecting rod is arranged on the wheel hub speed measuring assembly, and the friction hub rotates on the wheel hub shaft.

[0011] Furthermore, the wheel hub speed measuring assembly includes a speed measuring fixing rod and a slider bushing, a mounting plate is provided at the left end of the speed measuring fixing rod, the mounting plate is arranged on the wheel hub shaft, a bushing sliding hole is provided at the right center of the speed measuring fixing rod, the slider bushing is arranged in the bushing sliding hole, the bushing sliding hole is symmetrically provided with a blocking rod groove, one end of the connecting rod is arranged on the slider bushing, and the other end of the slider bushing is arranged on the connecting part.

[0012] Furthermore, a speed measuring slider is provided in the slider sleeve, and the speed measuring slider slides in the slider sleeve. A speed measuring slider spring is provided on the rear side of the speed measuring slider, and the end of the speed measuring slider spring is provided on the inner wall of the slider sleeve. The front end of the speed measuring slider is attached to the friction hub.

[0013] Furthermore, the wheel hub speed measuring assembly also includes a gear rod and an adjusting knob, the gear rod slides in the gear rod groove, the adjusting knob is threadedly connected to the threaded hole at the bottom of the gear rod groove, the front end of the gear rod is fitted on the slider sleeve, and the rear end of the gear rod is provided with a gear rod spring, and the end of the gear rod spring is provided on the bottom plate of the adjusting knob.

[0014] Furthermore, the outer wall of the friction hub is provided with a wire rope friction groove, the wire rope friction groove is fitted on the wire rope, the friction hub rolls on the wire rope, the side wall of the friction hub is provided with an inner shallow groove and an outer deep groove, the inner shallow groove is located inside the outer deep groove, and the speed measuring slider is fitted on the surface of the inner shallow groove.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. By fitting the friction hub to the wire rope, the wire rope drives the friction hub to rotate. When the hoist slips, the wire rope will slide quickly, thereby driving the friction hub to rotate faster. The rotation speed of the friction hub increases, which increases the centrifugal force of each point on the friction hub. The speed measuring slider fits on the inner shallow groove of the friction hub, moves outward due to the increased centrifugal force, and slides into the outer deep groove of the friction hub, thereby driving the connecting rod to move, thereby achieving the technical effect of the hub speed measuring component detecting whether the hoist slips.

[0016] 2. When the connecting rod moves, it will drive the toggle rod to move forward, and the toggle rod will drive the friction wedge to move toward the limit block. The limit groove of the limit block gradually narrows from the outside to the inside, so that the friction wedge squeezes the pressure plate of the rope clamp, and then the rope groove becomes smaller and clamped on the wire rope. The wire rope drives the rope clamp to move up or down, and the friction wedge at the front end of the rope clamp will also move up or down. The limit groove gradually narrows from the center of the limit block to the upper and lower ends, further squeezing the friction wedge, thereby increasing the clamping force of the rope clamp on the wire rope, that is, increasing the friction between the rope clamp and the wire rope, preventing the wire rope from further slipping, and controlling the hoist to stop. The alarm light flashes and sounds, waiting for workers to check to prevent equipment damage.

[0017] 3. In the initial state of the wheel hub speed measuring assembly, the speed measuring slider is attached to the inner shallow groove surface of the friction hub, and the slider sleeve outside the speed measuring slider is blocked by the stop rod in the stop rod groove. When the centrifugal force is greater than the thrust of the stop rod, the speed measuring slider will drive the slider sleeve to slide outward and slide into the outer deep groove. When different rotation speeds of the sheave are preset, the thrust of the stop rod can be adjusted by turning the adjusting knob to prevent the thrust of the stop rod from being too large or too small, causing the speed measuring slider to misjudge.

[0018] 4. By observing the position of the slider sleeve on the hub speed measuring assembly, it is possible to preliminarily determine which wire rope has a problem. Workers do not need to blindly perform maintenance, which speeds up the handling of hoist slippage failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a multi-rope friction mine hoist proposed by the present invention; Figure 2 This is a schematic structural diagram of an anti-skid device for a multi-rope friction mine hoist proposed by the present invention; Figure 3 This is a front view of an anti-skid device for a multi-rope friction mine hoist proposed by the present invention; Figure 4 for Figure 3 A cross-sectional view along the cutting line AA; Figure 5 for Figure 4 A cross-sectional view along the cutting line BB; Figure 6 This is a front view of a hub speed measuring assembly of a multi-rope friction mine hoist proposed by the present invention; Figure 7 for Figure 6 A cross-sectional view along the cutting line CC; Figure 8 for Figure 7 A cross-sectional view along the cutting line DD; Fig. 9 This is a schematic structural diagram of a limit block of a multi-rope friction mine hoist proposed by the present invention; Fig.10 A schematic diagram of the structure of a rope clamp for a multi-rope friction mine hoist proposed by the present invention; Fig.11 A schematic structural diagram of a friction wedge of a multi-rope friction mine hoist proposed by the present invention; Fig.12 A schematic structural diagram of a toggle lever of a multi-rope friction mine hoist proposed by the present invention; Fig.13This is a schematic structural diagram of a friction hub of a multi-rope friction mine hoist proposed by the present invention; Fig.14 for Figure 5 A partial enlarged view of point I in the middle.

[0020] Among them, 101, friction wheel, 102, sky wheel, 103, wire rope, 104, lifting container, 105, tail rope, 106, anti-skid device, 1, anti-skid device body, 11, fixed seat, 12, center shell, 121, rope hole, 122, clamp fixing rod, 123, device groove, 124, toggle rod slide groove, 13, hub shaft, 2, limit block, 21, limit groove, 22, toggle rod groove, 23, connecting rod groove, 3, rope clamp, 31, fixed end, 32, rope groove, 33, pressure plate, 34, friction wedge Positioning groove, 4, friction wedge, 41, mounting column, 42, wedge reset spring, 5, toggle rod, 51, sliding part, 52, connecting part, 53, toggle part, 6, wheel hub speed measuring assembly, 61, speed measuring fixing rod, 611, mounting plate, 612, sleeve sliding hole, 62, stop rod groove, 63, slider sleeve, 64, speed measuring slider, 641, speed measuring slider spring, 65, stop rod, 651, stop rod spring, 66, adjusting knob, 7, connecting rod, 8, friction hub, 81, wire rope friction groove, 82, inner shallow groove, 83, outer deep groove.

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” 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, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0024] like Figure 1-Figure 14As shown, the present invention proposes a multi-rope friction mine hoist, including a friction wheel 101, a sheave 102 and a wire rope 103, the wire rope 103 is wrapped around the friction wheel 101 and the sheave 102, a lifting container 104 is provided at both ends of the wire rope 103, a tail rope 105 is provided at the bottom of the lifting container 104, and the two ends of the tail rope 105 are respectively connected to the lifting container 104, an anti-skid device 106 is provided at the front side of the friction wheel 101, and the wire rope 103 passes through the anti-skid device 106; the anti-skid device 106 includes an anti-skid device body 1, a limit block 2, a rope clamp 3, a friction wedge 4 and a toggle rod 5, fixed seats 11 are provided on both sides of the anti-skid device body 1, and a center of the anti-skid device body 1 is provided The center shell 12 and the hub shaft 13, the hub shaft 13 is located at the lower side of the center shell 12, the center shell 12 is linearly arrayed with rope holes 121 passing through it, the wire rope 103 passes through the rope hole 121, the center shell 12 is linearly arranged with a clamp fixing rod 122 inside, the clamp fixing rod 122 is located above the rope hole 121, the rope clamp 3 is arranged on the clamp fixing rod 122, the bottom of the center shell 12 is linearly arrayed with an installation groove 123, the installation groove 123 is located below the rope hole 121, the limit block 2 is arranged in the installation groove 123, the installation groove 123 is symmetrically provided with a toggle rod slide groove 124 on the upper and lower sides, the friction wedge block 4 is arranged on the rope clamp 3, and the toggle rod 5 is arranged on the toggle rod slide groove 124.

[0025] The limit block 2 is symmetrically provided with limit grooves 21 in the upper and lower parts, a toggle rod groove 22 is provided in the center of the limit block 2, and connecting rod grooves 23 are symmetrically provided on the left and right sides of the limit block 2. The friction wedge block 4 is located in the limit groove 21. The limit groove 21 gradually narrows from the center of the limit block 2 to the upper and lower ends, and the limit groove 21 gradually narrows from the outside to the inside.

[0026] The rope clamp 3 is provided with a fixed end 31, a rope groove 32 and a pressure plate 33. The rope groove 32 is located between the fixed end 31 and the pressure plate 33. The fixed end 31 is arranged on the clamp fixing rod 122. The wire rope 103 passes through the rope groove 32. The pressure plate 33 is provided with a friction wedge positioning groove 34.

[0027] The friction wedge 4 gradually becomes thinner from left to right, and the friction wedge 4 gradually becomes thinner from the center to the upper and lower edges. A mounting column 41 is provided at the bottom of the friction wedge 4, and a wedge return spring 42 is provided on the mounting column 41. The mounting column 41 is arranged in the friction wedge positioning groove 34, and the end of the wedge return spring 42 is arranged on the inner wall of the friction wedge positioning groove 34.

[0028] The toggle rod 5 is provided with a sliding portion 51, a connecting portion 52 and a toggle portion 53, the connecting portion 52 is located between the sliding portion 51 and the toggle portion 53, the sliding portion 51 slides in the toggle rod slot 124, the toggle rod 5 is located in the toggle rod slot 22, and the toggle portion 53 is attached to the wide side of the friction wedge block 4.

[0029] The anti-skid device 106 also includes a wheel hub speed measuring assembly 6 , a connecting rod 7 and a friction hub 8 . The wheel hub speed measuring assembly 6 is arranged on the wheel hub shaft 13 , the connecting rod 7 is arranged on the wheel hub speed measuring assembly 6 , and the friction hub 8 rotates on the wheel hub shaft 13 .

[0030] The wheel hub speed measuring assembly 6 includes a speed measuring fixing rod 61 and a slider bushing 63. A mounting plate 611 is provided at the left end of the speed measuring fixing rod 61. The mounting plate 611 is arranged on the wheel hub shaft 13. A bushing sliding hole 612 is provided at the center of the right side of the speed measuring fixing rod 61. The slider bushing 63 is arranged in the bushing sliding hole 612. The bushing sliding hole 612 is symmetrically provided with a blocking rod groove 62. One end of the connecting rod 7 is arranged on the slider bushing 63, and the other end of the slider bushing 63 is arranged on the connecting part 52.

[0031] A speed measuring slider 64 is provided in the slider sleeve 63, and the speed measuring slider 64 slides in the slider sleeve 63. A speed measuring slider spring 641 is provided on the rear side of the speed measuring slider 64. The end of the speed measuring slider spring 641 is provided on the inner wall of the slider sleeve 63, and the front end of the speed measuring slider 64 is attached to the friction hub 8.

[0032] The wheel hub speed measuring assembly 6 also includes a stop rod 65 and an adjusting knob 66. The stop rod 65 slides in the stop rod groove 62. The adjusting knob 66 ​​is threadedly connected to the threaded hole at the bottom of the stop rod groove 62. The front end of the stop rod 65 is attached to the slider sleeve 63. The rear end of the stop rod 65 is provided with a stop rod spring 651. The end of the stop rod spring 651 is provided on the bottom plate of the adjusting knob 66.

[0033] The outer wall of the friction hub 8 is provided with a wire rope friction groove 81, and the wire rope friction groove 81 is fitted on the wire rope 103. The friction hub 8 rolls on the wire rope 103. The side wall of the friction hub 8 is provided with an inner shallow groove 82 and an outer deep groove 83. The inner shallow groove 82 is located inside the outer deep groove 83, and the speed measuring slider 64 is fitted on the surface of the inner shallow groove 82.

[0034] During specific use, when the wire rope 103 slips, the wire rope 103 will slide quickly, and the friction hub 8 attached to the wire rope 103 will accelerate under the drive of the wire rope 103. The rotation speed of the friction hub 8 increases, which increases the centrifugal force of each point on the friction hub 8. When the centrifugal force is greater than the thrust of the stop rod 65, the speed measuring slider 64 is attached to the inner shallow groove 82 of the friction hub 8, moves outward due to the increased centrifugal force, and slides into the outer deep groove 83 of the friction hub 8 under the elastic force of the speed measuring slider spring 641. At the same time, the speed measuring slider 64 drives the external slider sleeve 63 to slide outward in the sleeve sliding hole 612, and the slider sleeve 63 passes over the stop rod 65 and drives the connecting rod 7 to move outward. The other end of the connecting rod 7 will drive the toggle rod 5 to slide outward.

[0035] During the sliding process of the toggle rod 5, the toggle portion 53 of the toggle rod 5 will push the friction wedge 4 to move toward the limit block 2, and the limit groove 21 of the limit block 2 will gradually narrow from the outside to the inside. The friction wedge 4 will squeeze the pressure plate 33 of the rope clamp 3, making the pores of the rope groove 32 smaller, thereby clamping the rope groove 32 on the wire rope 103. Under the friction force of the wire rope 103, the rope clamp 3 is driven to move upward or downward, and the friction wedge 4 at the front end of the rope clamp 3 will also move upward or downward, and the limit groove 21 extends from the center of the limit block 2 to the upper and lower sides. The end gradually becomes narrower, further squeezing the friction wedge 4, thereby increasing the clamping force of the rope clamp 3 on the wire rope 103, that is, increasing the friction between the rope clamp 3 and the wire rope 103, preventing the wire rope 103 from further slipping, and controlling the hoist to stop, the alarm light flashes and sounds, waiting for the workers to check the hoist, troubleshoot, and prevent equipment damage. By observing the position of the slider sleeve 63 on the hub speed measuring assembly 6, it can be preliminarily determined which wire rope 103 has a problem, thereby speeding up the processing of the hoist slippage failure.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0038] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A multi-rope friction mine hoist, characterized in that: The invention comprises a friction wheel (101), a sheave (102) and a steel wire rope (103), wherein the steel wire rope (103) is wound around the friction wheel (101) and the sheave (102), a lifting container (104) is provided at both ends of the steel wire rope (103), a tail rope (105) is provided at the bottom of the lifting container (104), and both ends of the tail rope (105) are connected to the lifting container (104), an anti-skid device (106) is provided at the front side of the friction wheel (101), and the steel wire rope (103) passes through the anti-skid device (106); The anti-skid device (106) comprises an anti-skid device body (1), a limit block (2), a rope clamp (3), a friction wedge (4) and a toggle rod (5). The anti-skid device body (1) is provided with a fixing seat (11) on both sides. The center of the anti-skid device body (1) is provided with a central shell (12) and a hub shaft (13). The hub shaft (13) is located at the lower side of the central shell (12). The central shell (12) is provided with a linear array of rope holes (121) for passing through the central shell. The steel wire rope (103) passes through the rope holes (121). The central shell (12) is provided with a linear array of rope holes (121) for passing through the central shell. A clamp plate fixing rod (122) is provided, the clamp plate fixing rod (122) is located above the rope hole (121), the rope clamp plate (3) is arranged on the clamp plate fixing rod (122), a device groove (123) is provided in a linear array at the bottom of the central shell (12), the device groove (123) is located below the rope hole (121), the limit block (2) is arranged in the device groove (123), the device groove (123) is symmetrically provided with a toggle rod sliding groove (124) on the upper and lower sides, the friction wedge block (4) is arranged on the rope clamp plate (3), and the toggle rod (5) is arranged on the toggle rod sliding groove (124).

2. A multi-rope friction mine hoist according to claim 1, characterized in that: The limit block (2) is symmetrically provided with limit grooves (21) at the top and bottom, a toggle rod groove (22) is provided at the center of the limit block (2), and connecting rod grooves (23) are symmetrically provided at the left and right sides of the limit block (2). The friction wedge block (4) is located in the limit groove (21), and the limit groove (21) gradually narrows from the center to the upper and lower ends of the limit block (2), and the limit groove (21) gradually narrows from the outside to the inside.

3. A multi-rope friction mine hoist according to claim 2, characterized in that: The rope clamp (3) is provided with a fixed end (31), a rope groove (32) and a pressure plate (33); the rope groove (32) is located between the fixed end (31) and the pressure plate (33); the fixed end (31) is provided on a clamp fixing rod (122); the steel wire rope (103) passes through the rope groove (32); and the pressure plate (33) is provided with a friction wedge positioning groove (34).

4. A multi-rope friction mine hoist according to claim 3, characterized in that: The friction wedge (4) gradually becomes thinner from left to right, and the friction wedge (4) gradually becomes thinner from the center to the upper and lower edges. A mounting column (41) is provided at the bottom of the friction wedge (4), and a wedge return spring (42) is provided on the mounting column (41). The mounting column (41) is arranged in the friction wedge positioning groove (34), and the end of the wedge return spring (42) is arranged on the inner wall of the friction wedge positioning groove (34).

5. A multi-rope friction mine hoist according to claim 4, characterized in that: The toggle rod (5) is provided with a sliding portion (51), a connecting portion (52) and a toggle portion (53); the connecting portion (52) is located between the sliding portion (51) and the toggle portion (53); the sliding portion (51) slides in a toggle rod sliding groove (124); the toggle rod (5) is located in the toggle rod groove (22); and the toggle portion (53) is attached to the wide side of the friction wedge (4).

6. A multi-rope friction mine hoist according to claim 5, characterized in that: The anti-skid device (106) further comprises a wheel hub speed measuring assembly (6), a connecting rod (7) and a friction wheel hub (8); the wheel hub speed measuring assembly (6) is arranged on the wheel hub shaft (13); the connecting rod (7) is arranged on the wheel hub speed measuring assembly (6); and the friction wheel hub (8) rotates on the wheel hub shaft (13).

7. A multi-rope friction mine hoist according to claim 6, characterized in that: The wheel hub speed measuring assembly (6) comprises a speed measuring fixing rod (61) and a slider shaft sleeve (63); a mounting plate (611) is provided at the left end of the speed measuring fixing rod (61); the mounting plate (611) is arranged on the wheel hub shaft (13); a shaft sleeve sliding hole (612) is provided at the right center of the speed measuring fixing rod (61); the slider shaft sleeve (63) is arranged in the shaft sleeve sliding hole (612); the shaft sleeve sliding hole (612) is symmetrically provided with a stop rod groove (62) in upper and lower directions; one end of the connecting rod (7) is arranged on the slider shaft sleeve (63); and the other end of the slider shaft sleeve (63) is arranged on the connecting portion (52).

8. A multi-rope friction mine hoist according to claim 7, characterized in that: A speed measuring slider (64) is arranged inside the slider shaft sleeve (63), and the speed measuring slider (64) slides inside the slider shaft sleeve (63). A speed measuring slider spring (641) is arranged at the rear side of the speed measuring slider (64), and the end of the speed measuring slider spring (641) is arranged on the inner wall of the slider shaft sleeve (63). The front end of the speed measuring slider (64) is attached to the friction wheel hub (8).

9. A multi-rope friction mine hoist according to claim 8, characterized in that: The wheel hub speed measuring assembly (6) further comprises a stop rod (65) and an adjusting knob (66), wherein the stop rod (65) slides in the stop rod groove (62), the adjusting knob (66) is threadedly connected to a threaded hole at the bottom of the stop rod groove (62), the front end of the stop rod (65) is fitted on the slider sleeve (63), the rear end of the stop rod (65) is provided with a stop rod spring (651), and the end of the stop rod spring (651) is arranged on the bottom plate of the adjusting knob (66).

10. A multi-rope friction mine hoist according to claim 9, characterized in that: The outer wall of the friction hub (8) is provided with a wire rope friction groove (81), the wire rope friction groove (81) is fitted on the wire rope (103), the friction hub (8) rolls on the wire rope (103), the side wall of the friction hub (8) is provided with an inner shallow groove (82) and an outer deep groove (83), the inner shallow groove (82) is located inside the outer deep groove (83), and the speed measuring slider (64) is fitted on the surface of the inner shallow groove (82).

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