Anti-skid clamping mechanism for shaft of mine hoist

Abstract

The invention discloses an anti-skid clamping mechanism for a shaft of a mine hoist, which relates to the technical field of hoists and comprises a hoist and a vertical frame. A clamping assembly is fixedly mounted at the top of the vertical frame; the clamping assembly comprises two symmetrical supporting frames. A guide wheel is arranged between the sliding blocks; clamping rollers are arranged on two sides of the guide wheel; the two ends of each clamping roller are connected with L-shaped supporting arms. Two ends of the connecting rod are fixedly mounted with the gear; the gears are mounted at the tops of the inner sides of the two supporting frames through mounted bearings; the gear is matched with the toothed plate; the toothed plate is fixedly mounted at the top of the sliding block; when the steel wire rope between the elevator and the clamping assembly is broken, the steel wire rope between the clamping assembly and the hopper structure loses downward pressure on the guide wheel, a first spring drives a sliding block to bounce upwards along a sliding rail, and in the upward moving process of the sliding block, a toothed plate at the top is meshed with gears on the two sides; the gears enable the L-shaped supporting arms to drive the clamping rollers to get close to the surfaces of the guide wheels through the connecting rods, the two clamping rollers clamp the steel wire rope to the guide wheels, and the lifting hook and the hopper structure are prevented from falling.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of hoist tightening, and specifically to an anti-slip clamping mechanism for a mine hoist shaft. Background Technique

[0002] A mine hoist is a key device in mine production, undertaking important tasks such as hoisting materials such as ore and coal, as well as transporting personnel and equipment; with the increase in the depth of mine exploitation, the increase in hoisting volume, and the continuous improvement of safety production requirements, higher requirements are put forward for the anti-slip clamping mechanism of the mine hoist shaft. Traditional hoist anti-slip devices usually need to rely on external power devices to clamp and brake the steel wire rope. For example, some devices need to be equipped with complex hydraulic systems or electrical control systems to provide clamping force, which not only increases the overall structural complexity of the equipment, but also greatly increases the manufacturing, installation, and maintenance costs;

[0003] Currently, the installation and disassembly process of the braking components of the hoist anti-slip device is cumbersome, requiring professional tools and technicians, and may consume a large amount of time and energy. This will affect the maintenance efficiency of the equipment in mine production, increase the downtime, and reduce the production efficiency; moreover, the traditional hoist anti-slip device cannot effectively achieve the anti-slip clamping effect on the hopper. In the process of work, when the connected steel wire rope breaks, the clamping device can only clamp the steel wire rope. And when the clamping structure clamps, due to the uncertainty of the breaking position of the steel wire rope, it cannot effectively stop the hopper connected by the steel wire rope from falling, which may pose a threat to the equipment or staff inside the shaft;

[0004] After retrieval, Chinese Patent Publication No. CN201610360038.9 discloses an anti-slip clamping device for a mine hoist; including a movable clamping plate, a support plate installed on the movable clamping plate; a U-shaped steel vertically standing on the support plate; a slider sliding in the U-shaped steel; an electromagnet for lifting the slider; a fixed block hinged to the slider and the U-shaped steel respectively through two support rods; a sliding clamping block connected to the fixed block through a connecting frame and a connecting spring; a fixed clamping block cooperating with the sliding clamping block to clamp the steel wire rope; an L-shaped support plate for supporting the fixed clamping block; the sliding clamping block can slide on the fixed block through a cylindrical roller bearing; the sliding clamping block slides downward under the action of the friction force of the steel wire rope to clamp the steel wire rope, making one side of the two support rods and the U-shaped steel form a triangle to form self-locking;

[0005] When the clamping device in the above patent clamps the steel wire rope, when the magnetic force of the electromagnet disappears, under the action of gravity, the slider moves downward, the sliding clamping block moves right downward to contact the steel wire rope, and under the action of the friction force of the steel wire rope, it slides downward on the fixed block through the cylindrical roller bearing, and the steel wire rope is clamped by the sliding clamping block and the fixed clamping block. When clamping the steel wire rope, the two support rods and one side of the U-shaped steel form a triangle, thus forming self-locking. Although the above patent can achieve the clamping effect, it can effectively achieve the clamping effect of the steel wire rope only when it is ensured that the steel wire rope will not break or when the breaking position of the steel wire rope is above the clamping device. When the breaking position of the steel wire rope is at the bottom of the clamping device, when the clamping device in the above patent clamps the steel wire rope, it cannot effectively achieve the clamping effect on the falling of the hopper. Summary of the Invention

[0006] The purpose of the present invention is to provide an anti-slip clamping mechanism for the shaft of a mine hoist. In this device, the steel wire rope on the hoist is wound around the guide wheel, and two pinch rollers are placed between the guide wheel. In this way, during hoisting, the guide wheel and the sliders at both ends are pressed down on the first spring by the weight of the steel wire rope and the hopper body itself, ensuring the smooth winding and unwinding of the steel wire rope. When the steel wire rope breaks, the lifting hook at the bottom of the steel wire rope loses the lifting force with the hanger, causing the hanger and the roller to fall onto the hopper body. After the connecting rope loses force, the second spring inside the housing drives the telescopic wedge block to move forward. When the hopper body is descending, the telescopic wedge block is inserted into the jack, and by pushing the top of the adjusting plate, the positions of the upper and lower structures of the adjusting plate are swapped. When the bottom of the adjusting plate moves forward, the support plate penetrates the through slot and contacts the bottom of the hopper body to achieve the support effect, thus avoiding the effect of the free fall of the hopper body; to solve the problems in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An anti-slip clamping mechanism for the shaft of a mine hoist, comprising a hoist and an upright frame; characterized in that: a clamping assembly is fixedly installed at the top of the upright frame; the clamping assembly includes two symmetrically arranged support frames; sliders are fixedly installed inside both support frames through slide rails; a guide wheel is arranged between the two sliders; when the steel wire rope presses down on the guide wheel, the guide wheel moves downward through the movement of the slider along the slide rail, thus ensuring the smooth winding and unwinding of the steel wire rope.

[0009] Clamping rollers are arranged on both sides of the guide wheel; both ends of the two clamping rollers are connected to L-shaped support arms; one end of the L-shaped support arm away from the clamping roller is fixedly installed with a connecting rod; both ends of the connecting rod are fixedly installed with gears; the gears are installed on the inner tops of two brackets through pedestal bearings; two groups of the gears cooperate with a toothed plate; the toothed plate is fixedly installed on the top of a slider; when the steel wire rope loses the downward pressure on the guide wheel, the slider drives the guide wheel to move upward, and at the same time the toothed plate meshes with the gear, and the gear drives the L-shaped support arm to drive the clamping roller to move towards the surface of the guide wheel through the connecting rod, realizing the clamping of the steel wire rope;

[0010] It further includes a wellbore; symmetrically arranged clamping components are fixedly installed on the inner wall of the wellbore; each clamping component includes a sliding frame; a groove is formed on one side of the sliding frame close to the wellbore; multiple groups of insertion holes and through grooves are formed on the side wall of the groove; the distance between the insertion holes and the through grooves is the same as the length of the hopper structure; the distance between adjacent two groups of insertion holes and through grooves is the same; an adjusting plate is movably installed in the groove of the sliding frame; both ends of the adjusting plate cooperate with the insertion holes and the through grooves, wherein, a support plate is movably installed on the adjusting plate; the support plate penetrates through the through groove; when the positions of the upper and lower ends of the adjusting plate are swapped, the support effect is realized by the support plate contacting the bottom of the hopper body;

[0011] As a further technical solution of the present invention, the hopper structure includes a hopper body; both sides of the top of the hopper body are fixedly installed with shells; a telescopic wedge block is movably installed inside the shell; in the normal working state, through the pulling of the connecting rope, the telescopic wedge block is contracted inside the shell, ensuring the stability of the hopper body during the up and down movement;

[0012] As a further technical solution of the present invention, an opening groove is formed on one side of the shell close to the sliding frame; a second spring is further arranged inside the shell; one end of the second spring is fixedly installed with the telescopic wedge block; a connecting rope is fixedly connected between the two telescopic wedge blocks, and both ends of the connecting rope penetrate through the second spring; in the normal state, the telescopic wedge block presses the second spring, avoiding the contact between the telescopic wedge block and the sliding frame,

[0013] As a further technical solution of the present invention, the working state of the connecting rope is in a "zigzag" shape, and the middle of the connecting rope is cooperatively installed with a roller; the roller is cooperatively installed with a hanging bracket through a rotating shaft; the two telescopic wedge blocks are connected by the same connecting rope, so that during the use process, it effectively ensures that the second springs inside the two shells synchronously drive the telescopic wedge blocks to contract or pop out, thereby avoiding the situation that the telescopic wedge blocks at both ends act inconsistently, and thus ensuring the high efficiency of supporting the hopper body;

[0014] As a further technical solution of the present invention, the hanging bracket is cooperatively installed with the lifting hook on the steel wire rope of the hoist; the steel wire rope on the hoist is wound around the guide wheel and is located between two pinch rollers; when the steel wire rope breaks, the pinch rollers on both sides of the guide wheel synchronously clamp the steel wire rope;

[0015] As a further technical solution of the present invention, first springs are arranged at the bottoms of both of the sliders; one end of each first spring away from the slider is fixedly installed with a support frame; a rectangular groove for the toothed plate to penetrate is formed on the top plate of the support frame; during the upward movement of the slider, the toothed plate penetrates the rectangular groove, ensuring the meshing between the toothed plate and the gear, ensuring that the gear moves the pinch roller in place, and ensuring the clamping effect on the steel wire rope;

[0016] As a further technical solution of the present invention, a plurality of C-shaped blocks are fixedly installed on the side walls on both sides of the hopper body, and the C-shaped blocks are slidably cooperatively installed with both sides of the sliding frame; through the cooperation between the C-shaped blocks and the sliding frame, the stability of the hopper body during the up and down movement is ensured, and the situation that the hopper body is offset is avoided;

[0017] As a further technical solution of the present invention, the telescopic wedge block is cooperatively installed with the insertion hole formed on the sliding frame; one end of the telescopic wedge block close to the opening groove is arranged in an inclined surface; the telescopic wedge block penetrates the opening groove and is inserted into the insertion hole, thereby realizing the supporting effect on the hopper body;

[0018] As a further technical solution of the present invention, the steel wire rope on the hoist is inclined with respect to the guide wheel; the hoist and the vertical frame are fixedly installed on the foundation;

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In the present invention, during use, the steel wire rope on the hoist is wound around the guide wheel and between the guide wheel and the pinch rollers on both sides. A lifting hook is fixedly installed at the bottom of the steel wire rope. In this way, during use, the guide wheel is pressed down by the weight of the lifting hook and the hopper body, and the sliders at both ends of the guide wheel slide downward along the slide rail inside the support frame to compress the first spring, enabling the steel wire rope to be smoothly wound and unwound on the guide wheel;

[0021] 2. In the present invention, the lifting hook at the bottom of the steel wire rope is cooperatively installed with the hanging bracket. When the lifting hook hoists the hanging bracket, the connecting rope is in a shape of "J". The two ends of the connecting rope pull the telescopic wedge block to contract inside the housing, and the C-shaped blocks on both sides of the hopper body move up and down along the surface of the sliding frame, ensuring the stability of the hopper body during the lifting process;

[0022] 3. In the process of using the present invention, when the steel wire rope between the hoist and the clamping assembly breaks, the steel wire rope between the clamping assembly and the hopper structure loses the downward pressure on the guide wheel. At this time, the first spring drives the slider to bounce upward along the slide rail. During the upward movement of the slider, the top toothed plate meshes with the gears on both sides, and the gears drive the L-shaped support arm through the connecting rod to drive the pinch roller to approach the surface of the guide wheel, so that the two pinch rollers clamp the steel wire rope on the guide wheel, preventing the lifting hook and the hopper structure from falling;

[0023] 4. In the present invention, when the steel wire rope between the clamping assembly and the hopper structure breaks, or the lifting hook is separated from the hanging bracket, or the connecting rope between the two telescopic wedges breaks, the steel wire rope on the guide wheel is effectively clamped and fixed by the pinch roller. During the free fall of the hopper body, the connecting rope loses the lifting force and is in a flat state. In this way, the second spring in the housing pushes the telescopic wedge towards the opening groove. When the telescopic wedge is flush with the jack formed on the carriage during the downward movement, the telescopic wedge is inserted into the jack by the thrust of the second spring, so that the telescopic wedge pushes the adjusting plate, causing the up and down positions of the adjusting plate to be swapped;

[0024] 5. In the present invention, the top of the adjusting plate moves backward by the pushing of the telescopic wedge. At this time, the bottom of the adjusting plate moves forward. When the bottom of the adjusting plate moves forward, the support plate movably installed at the bottom of the adjusting plate penetrates the through groove to contact the bottom of the hopper body. Thus, through the cooperation between the telescopic wedge and the support plate, the falling hopper body stops, effectively ensuring the safety of the equipment and staff at the bottom of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0026] Figure 2 is in the present invention Figure 1 Another perspective structural schematic diagram.

[0027] Figure 3 is in the present invention Figure 1 Exploded schematic diagram.

[0028] Figure 4 is in the present invention Figure 3 Bottom structural bottom view.

[0029] Figure 5 is in the present invention Figure 3 Another perspective structural schematic diagram of the clamping assembly.

[0030] Figure 6 is in the present invention Figure 3 Three-dimensional structural schematic diagram of the hopper structure.

[0031] Figure 7 is the side view in the present invention Figure 6 .

[0032] Figure 8 is the A-A cross-sectional view in the present invention Figure 7 .

[0033] Figure 9 is the side view of the clamping component in the present invention Figure 3 .

[0034] Figure 10 is the B-B cross-sectional view in the present invention Figure 9 .

[0035] Figure 11 is the enlarged view of the local structure at C in the present invention Figure 5 .

[0036] Figure 12 is the enlarged view of the local structure at D in the present invention Figure 8 .

[0037] Figure 13 is the enlarged view of the local structure at E in the present invention Figure 10 .

[0038] In the figure: 1 - elevator, 2 - vertical frame, 3 - clamping component, 30 - support frame, 31 - guide wheel, 32 - pinch roller, 33 - top plate, 34 - slide rail, 35 - L-shaped support arm, 36 - slider, 37 - first spring, 38 - connecting rod, 39 - toothed plate, 310 - pedestal bearing, 311 - gear, 312 - rectangular groove, 4 - shaft well, 5 - lifting hook, 6 - hopper structure, 60 - hopper body, 61 - C-shaped block, 62 - housing, 63 - connecting rope, 64 - hanger, 65 - roller, 66 - second spring, 67 - telescopic wedge block, 68 - opening groove, 7 - clamping component, 70 - carriage, 71 - adjusting plate, 72 - jack, 73 - support plate, 74 - through groove. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figure 1-9, in the embodiment of the present invention, an anti-slip clamping mechanism for a mine hoist shaft includes a hoist 1 and an upright frame 2; characterized in that: a clamping assembly 3 is fixedly installed at the top of the upright frame 2; the clamping assembly 3 includes two symmetrically arranged support frames 30; both the two support frames 30 are fixedly installed with sliders 36 through slide rails 34; a guide wheel 31 is arranged between the two sliders 36;

[0041] Both sides of the guide wheel 31 are provided with pinch rollers 32; both ends of the two pinch rollers 32 are L-shaped arms 35; the end of the L-shaped arm 35 away from the pinch roller 32 is fixedly installed with a connecting rod 38; both ends of the connecting rod 38 are fixedly installed with gears 311; the gears 311 are installed on the inner top of the two support frames 30 through pedestal bearings 310; the two groups of gears 311 cooperate with a toothed plate 39; the toothed plate 39 is fixedly installed on the top of the slider 36;

[0042] It further includes a shaft 4; symmetrically arranged clamping components 7 are fixedly installed on the inner wall of the shaft 4; the clamping component 7 includes a slide frame 70; a groove is opened on one side of the slide frame 70 close to the shaft 4; multiple groups of jacks 72 and through grooves 74 are opened on the side wall of the groove; the distance between the jack 72 and the through groove 74 is the same as the length of the hopper structure 6; an adjusting plate 71 is movably installed in the groove of the slide frame 70; both ends of the adjusting plate 71 cooperate with the jack 72 and the through groove 74, wherein, a support plate 73 is movably installed on the adjusting plate 71; the support plate 73 penetrates through the through groove 74;

[0043] The hopper structure 6 includes a hopper body 60; both sides of the top of the hopper body 60 are fixedly installed with a housing 62; a telescopic wedge 67 is movably installed inside the housing 62.

[0044] By adopting the above technical solution, during use, the steel wire rope on the hoist 1 is wound around the guide wheel 31 and between the guide wheel 31 and the two pinch rollers 32 on both sides. A lifting hook 5 is fixedly installed at the bottom of the steel wire rope. In this way, during use, the weight of the lifting hook 5 and the hopper body 60 presses down the guide wheel 31, and the sliders 36 at both ends of the guide wheel 31 slide downward along the slide rails 34 inside the support frame 30 to compress the first spring 37, so that the steel wire rope can be smoothly wound and unwound on the guide wheel 31;

[0045] In this embodiment, an opening groove 68 is opened on one side of the housing 62 close to the slide frame 70; a second spring 66 is further arranged inside the housing 62; one end of the second spring 66 is fixedly installed with the telescopic wedge 67; a connecting rope 63 is fixedly connected between the two telescopic wedges 67, and both ends of the connecting rope 63 penetrate through the second spring 66;

[0046] In this embodiment, the connecting rope 63 is in a "Z" shape in its working state, and the middle of the connecting rope 63 is fitted and installed with the roller 65; the roller 65 is fitted and installed with the hanging bracket 64 through a rotating shaft;

[0047] By adopting the above technical solution, the lifting hook 5 at the bottom of the steel wire rope is fitted and installed with the hanging bracket 64. When the lifting hook 5 lifts the hanging bracket 64, the connecting rope 63 is in a "Z" shape, and both ends of the connecting rope 63 pull the expansion wedge 67 to contract inside the housing 62, and the C-shaped blocks 61 on both sides of the hopper body 60 move up and down along the surface of the sliding frame 70 to ensure the stability of the hopper body 60 during the lifting and lowering process;

[0048] Furthermore, during the use process, when the steel wire rope between the hoist 1 and the clamping assembly 3 breaks, the steel wire rope between the clamping assembly 3 and the hopper structure 6 loses the downward pressure on the guide wheel 31. At this time, the first spring 37 drives the slider 36 to bounce upward along the slide rail 34. During the upward movement of the slider 36, the top tooth plate 39 meshes with the gears 311 on both sides, and the gears 311 drive the L-shaped support arm 35 to drive the pinch roller 32 to approach the surface of the guide wheel 31 through the connecting rod 38, so that the two pinch rollers 32 clamp the steel wire rope on the guide wheel 31 to prevent the lifting hook 5 and the hopper structure 6 from falling;

[0049] In this embodiment, the hanging bracket 64 is fitted and installed with the lifting hook 5 on the steel wire rope of the hoist 1; the steel wire rope on the hoist 1 is wound around the guide wheel 31 and is located between the two pinch rollers 32;

[0050] Both bottoms of the two sliders 36 are provided with first springs 37; one end of the first spring 37 far from the slider 36 is fixedly installed with the support frame 30; a rectangular groove 312 for the tooth plate 39 to penetrate is opened on the top plate 33 of the support frame 30;

[0051] By adopting the above technical solution, when the steel wire rope between the clamping assembly 3 and the hopper structure 6 breaks, or the lifting hook 5 is separated from the hanging bracket 64, or the connecting rope 63 between the two expansion wedges 67 breaks, the steel wire rope on the guide wheel 31 is effectively clamped and fixed by the pinch rollers 32. During the free fall of the hopper body 60, the connecting rope 63 loses the lifting force and is in a flat state. In this way, the second spring 66 in the housing 62 pushes the expansion wedge 67 towards the opening groove 68. When the expansion wedge 67 is flush with the insertion hole 72 opened on the sliding frame 70 during the downward movement, the second spring 66 thrusts the expansion wedge 67 into the insertion hole 72, so that the expansion wedge 67 pushes the adjusting plate 71, causing the up and down positions of the adjusting plate 71 to be swapped;

[0052] In this embodiment; a plurality of C-shaped blocks 61 are further fixedly installed on the side walls of both sides of the hopper body 60, and the C-shaped blocks 61 are slidably fitted and installed with both sides of the sliding frame 70;

[0053] The telescopic wedge block 67 cooperates with the jacking hole 72 formed on the carriage 70; one end of the telescopic wedge block 67 close to the opening slot 68 is arranged as an inclined surface;

[0054] The steel wire rope on the hoist 1 is arranged obliquely with respect to the guide wheel 31; the hoist 1 and the vertical frame 2 are fixedly installed on the foundation;

[0055] By adopting the above technical solution, the top of the adjusting plate 71 is pushed by the telescopic wedge block 67 to move backward. At this time, the bottom of the adjusting plate 71 moves forward. When the bottom of the adjusting plate 71 moves forward, the support plate 73 movably installed at the bottom of the adjusting plate 71 penetrates through the through slot 74 to contact the bottom of the hopper body 60. Thus, through the cooperation between the telescopic wedge block 67 and the support plate 73, the falling hopper body 60 is stopped, effectively ensuring the safety of the equipment and workers at the bottom of the shaft 4;

[0056] The working principle of the present invention is: during use, the steel wire rope on the hoist 1 is wound around the guide wheel 31 and between the guide wheel 31 and the pinch rollers 32 on both sides. A lifting hook 5 is fixedly installed at the bottom of the steel wire rope. In this way, during use, the weight of the lifting hook 5 and the hopper body 60 presses down the guide wheel 31, and the sliders 36 at both ends of the guide wheel 31 slide downward along the slide rail 34 inside the support frame 30 to compress the first spring 37, enabling the steel wire rope to be smoothly wound and unwound on the guide wheel 31;

[0057] The lifting hook 5 at the bottom of the steel wire rope is cooperatively installed with the hanging frame 64. When the lifting hook 5 hoists the hanging frame 64, the connecting rope 63 is in a U shape, and both ends of the connecting rope 63 pull the telescopic wedge block 67 to contract inside the housing 62. The C-shaped blocks 61 on both sides of the hopper body 60 move up and down along the surface of the carriage 70 to ensure the stability of the hopper body 60 during the lifting and lowering process;

[0058] During use, when the steel wire rope between the hoist 1 and the clamping assembly 3 breaks, the steel wire rope between the clamping assembly 3 and the hopper structure 6 loses the downward pressure on the guide wheel 31. At this time, the first spring 37 drives the slider 36 to bounce upward along the slide rail 34. During the upward movement of the slider 36, the toothed plate 39 at the top meshes with the gears 311 on both sides. The gears 311 drive the L-shaped arm 35 through the connecting rod 38 to drive the pinch rollers 32 to approach the surface of the guide wheel 31, clamping the steel wire rope on the guide wheel 31 by the two pinch rollers 32 to prevent the lifting hook 5 and the hopper structure 6 from falling;

[0059] When the steel wire rope between the clamping assembly 3 and the hopper structure 6 breaks, or the lifting hook 5 separates from the hanger 64, or the connecting rope 63 between the two telescopic wedges 67 breaks, the steel wire rope on the guide wheel 31 is effectively clamped and fixed by the pinch roller 32. During the free fall of the hopper body 60, the connecting rope 63 loses its lifting force and becomes flat. In this way, the second spring 66 inside the housing 62 pushes the telescopic wedge 67 towards the opening groove 68. When the telescopic wedge 67 is flush with the insertion hole 72 formed on the carriage 70 during the descent, the second spring 66 thrusts the telescopic wedge 67 into the interior of the insertion hole 72, causing the telescopic wedge 67 to push against the adjusting plate 71 and causing the up and down positions of the adjusting plate 71 to be swapped;

[0060] The top of the adjusting plate 71 moves backward by the push of the telescopic wedge 67. At this time, the bottom of the adjusting plate 71 moves forward. When the bottom of the adjusting plate 71 moves forward, the support plate 73 movably installed at the bottom of the adjusting plate 71 penetrates through the through groove 74 to contact the bottom of the hopper body 60. Thus, through the cooperation between the telescopic wedge 67 and the support plate 73, the falling hopper body 60 is stopped, effectively ensuring the safety of the equipment and staff at the bottom of the shaft 4.

[0061] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0062] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mine hoist shaft anti-slip clamping mechanism, comprising a hoist (1) and a stand (2); characterized in that: A clamping assembly (3) is fixedly installed on the top of the stand (2); the clamping assembly (3) includes two symmetrical support frames (30); the two support frames (30) are fixedly installed inside through a slide rail (34) and a slider (36); a guide wheel (31) is arranged between the two sliders (36); The guide wheel (31) is provided with clamping rollers (32) on both sides; both ends of the two clamping rollers (32) are connected to L-shaped arms (35); one end of the L-shaped arm (35) away from the clamping rollers (32) is fixedly mounted to a connecting rod (38); both ends of the connecting rod (38) are fixedly mounted to a gear (311); the gear (311) is mounted on the top of the inner side of the two brackets (30) through a seat bearing (310); the two groups of gears (311) cooperate with a toothed plate (39); the toothed plate (39) is fixedly mounted on the top of the slider (36); It also includes a shaft (4); a symmetrical clamping assembly (7) is fixedly installed on the inner wall of the shaft (4); the clamping assembly (7) includes a slide (70); a groove is provided on the side of the slide (70) close to the shaft (4); a plurality of groups of insertion holes (72) and through grooves (74) are provided on the side wall of the groove; the spacing between the insertion holes (72) and the through grooves (74) is the same as the length of the hopper structure (6); an adjustment plate (71) is movably installed in the groove of the slide (70); the two ends of the adjustment plate (71) cooperate with the insertion holes (72) and the through groove (74), wherein the adjustment plate (71) is movably installed with a support plate (73); the support plate (73) passes through the through groove (74).

2. The anti-slip clamping mechanism for a mine hoist shaft according to claim 1, characterized in that: The hopper structure (6) comprises a hopper body (60); a shell (62) is fixedly installed on both sides of the top of the hopper body (60); and a telescopic wedge (67) is movably installed inside the shell (62).

3. The anti-slip clamping mechanism for a mine hoist shaft according to claim 1, characterized in that: An opening groove (68) is provided on one side of the shell (62) close to the slide (70); a second spring (66) is also provided inside the shell (62); one end of the second spring (66) is fixedly installed with the telescopic wedge block (67); a connecting rope (63) is fixedly connected between the two telescopic wedge blocks (67), and both ends of the connecting rope (63) pass through the second spring (66).

4. The anti-slip clamping mechanism for a mine hoist shaft according to claim 3, characterized in that: The connecting rope (63) is in a "J" shape in working state, and the middle of the connecting rope (63) is installed in cooperation with a roller (65); the roller (65) is installed in cooperation with a hanger (64) via a rotating shaft.

5. The anti-slip clamping mechanism for a mine hoist shaft according to claim 4, characterized in that: The hanger (64) is installed in cooperation with the lifting hook (5) on the wire rope of the hoist (1); the wire rope on the hoist (1) is wound around the guide wheel (31) and is located between two clamping rollers (32).

6. The anti-slip clamping mechanism for a mine hoist shaft according to claim 1, characterized in that: A first spring (37) is provided at the bottom of the two sliders (36); one end of the first spring (37) away from the slider (36) is fixedly mounted on the support frame (30); and a rectangular groove (312) is provided on the top plate (33) at the top of the support frame (30) for the tooth plate (39) to pass through.

7. The anti-slip clamping mechanism for a mine hoist shaft according to claim 2, characterized in that: A plurality of C-shaped blocks (61) are fixedly mounted on the side walls of both sides of the hopper body (60), and the C-shaped blocks (61) are slidably mounted on both sides of the slide frame (70).

8. The anti-slip clamping mechanism for a mine hoist shaft according to claim 2, characterized in that: The telescopic wedge (67) cooperates with the insertion hole (72) provided on the slide (70); and one end of the telescopic wedge (67) close to the opening groove (68) is arranged in an inclined surface.

9. The anti-slip clamping mechanism for a mine hoist shaft according to claim 1, characterized in that: The steel wire rope on the hoist (1) and the guide wheel (31) are arranged in an inclined manner; the hoist (1) and the stand (2) are fixedly installed on the foundation.

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