Mine elevator rope breakage anti-falling device

Abstract

The utility model discloses an anti-falling device for a broken rope of a mine hoist. The anti-falling device comprises a mounting frame, a wire wheel, a ratchet wheel, a speed limiting assembly and a wire clamping structure. By arranging the wire clamping structure, when the ratchet wheel rotates, the speed limiting assembly can be driven to grasp a steel wire rope on the wire wheel in a speed limiting mode, meanwhile, the ratchet wheel can push the connecting plate so that the push block can slide leftwards in the fixing frame, and at the moment, the spring can be stressed and stretched to generate elastic force; and then the pushing block pushes the pressing block to press the steel wire rope on the fixing block, when the speed limiting assembly completely clamps the steel wire rope on the wire wheel, the pressing block can also completely press the fixing block, the steel wire rope in the fixing block is firmly clamped, limiting of the steel wire rope is further reinforced, the anti-falling effect is improved, and the slipping phenomenon is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related field of hoist, especially to a mine hoist rope breakage anti-falling device. BACKGROUND

[0002] Mine hoist refers to the main transportation equipment in contact with underground and ground in mining engineering, and is installed on the ground, driven by steel wire rope to run along the shaft or slope, which is used for vertical and inclined shaft to lift coal, ore, gangue, personnel, materials, tools and equipment, etc., and the rope breakage anti-falling device is a safety protection device of hoist, which monitors and controls the speed of steel wire rope at any time, and the rope breakage anti-falling device will limit the speed of steel wire rope and bite it when overspeed occurs.

[0003] The existing patent CN214298787U discloses a hoist anti-falling rope breakage protection device, which adopts a sliding assembly linked with the lifting platform, and when the hoisted workpiece abnormally falls, the brake block is pushed to the surface of the fixed part on one side of the hoist to generate a continuous and stable friction force to offset the self-gravity of the hoisting platform and the workpiece, so as to lock the workpiece carrying platform on the fixed part and quickly and accurately realize the anti-falling brake effect, and effectively improve the flexibility of protection device reset debugging. The protection device comprises a brake platform connected to the carrying platform and a lifting and pulling bracket connected to the lifting rope, two groups of fixedly installed sliding block bases and movably connected brake sliding blocks are arranged on the brake platform, a spring sleeve is connected between the sliding block base and the brake sliding block, and a brake spring is arranged in the spring sleeve.

[0004] The above-mentioned patent or existing rope breakage anti-falling device has the following problems:

[0005] The existing rope breakage anti-falling device adopts a speed limiting component to limit the speed of steel wire rope, and only one speed limiting component has a general effect, and when hoisting heavy ore, the phenomenon of steel wire rope sliding may occur. UTILITY MODEL CONTENTS

[0006] Therefore, in order to solve the above problems, the utility model provides a mine hoist rope breakage anti-falling device.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme: a mine hoist broken rope anti-falling device, including installation frame, be provided with wire wheel in the installation frame, and be provided with ratchet wheel in installation frame still, be provided with action subassembly and overspeed switch on wire wheel, be provided with speed limiting subassembly on installation frame, and speed limiting subassembly is connected with ratchet wheel, the inside of installation frame is provided with wire clamping structure, wire clamping structure includes fixed block, the fixed block sets up in the inside of installation frame, the inside lower end of installation frame is provided with fixed frame, be provided with push block in fixed frame, push block is connected with telescopic sleeve pipe that is fixed in fixed frame, the surface of telescopic sleeve pipe is provided with spring, the surface of push block is provided with slide rod, and slide rod is connected with fixed frame slidingly, the surface of push block is provided with extension block, and one end of connecting plate is rotatably connected with extension block, and the other end is rotatably connected with the surface of ratchet wheel, the end surface of push block is provided with pressure block.

[0008] Preferably, the middle part of the fixed block is provided with a wire guide groove, and the wire guide groove is provided on the pressure block.

[0009] Preferably, the wire guide groove on the pressure block is provided with a rear anti-skid pressure block.

[0010] Preferably, the surface of the extension block is also provided with a slide rod, and the slide rod is slidingly connected with the fixed frame.

[0011] Preferably, the inside of the fixed frame is provided with a telescopic rod, the telescopic end of the telescopic rod is connected with the extension block, and a second spring is arranged on the surface of the telescopic rod.

[0012] Preferably, when the push block is reset into the fixed frame, the pressure block abuts against the surface of the fixed frame.

[0013] Preferably, the upper end of the fixed frame is provided with an anti-warping plate, and the push block slides along the surface of the anti-warping plate.

[0014] Preferably, the inside of the push block is provided with a mounting seat, a ball bearing is arranged in the inside of the mounting seat, and the ball bearing is in contact with the inner wall of the fixed frame.

[0015] The utility model discloses the beneficial effect:

[0016] The utility model discloses through being provided with wire clamping structure, when ratchet wheel rotates, will drive speed limiting subassembly to the wire rope on wire wheel speed limiting and hold, simultaneously, ratchet wheel still will push connecting plate and make, push block slides to left in fixed frame, at this moment, spring will force stretch and produce the elasticity, then push block will push pressure block and press the wire rope on fixed block, when speed limiting subassembly completely clamps the wire rope on wire wheel, pressure block also will completely press on fixed block, and firmly hold the wire rope in fixed block, further consolidateed to the wire rope's spacing, promoted the anti-falling effect, effectively avoided the phenomenon of skidding. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structure schematic diagram of the utility model;

[0018] Figure 2 is the front view structure schematic diagram of the utility model;

[0019] Figure 3 is the installation frame sectional structure schematic diagram of the utility model;

[0020] Figure 4 is the fixed frame plan view structure schematic diagram of the utility model;

[0021] Figure 5 is the A area local enlarged view of the utility model.

[0022] Among them: installation frame-1, line wheel-2, ratchet-3, speed limiting assembly-4, wire clamping structure-5, fixed block-51, wire guide groove-501, anti-skid pressing block-502, fixed frame-52, push block-53, telescopic sleeve-54, spring-55, sliding rod-56, extension block-57, connecting plate-58, pressing block-59, telescopic rod-571, second spring-572, anti-warping plate-521, mounting seat-531, ball-532. DETAILED DESCRIPTION

[0023] In order to further explain the technical scheme of the utility model, the following specific embodiments are described in detail.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 , the utility model provides a mine hoist broken rope anti-falling device, including installation frame 1, installation frame 1 inside assembly is with rotationally connected line wheel 2, hoist steel wire rope is wound on line wheel 2, and line wheel 2 still assembly has overspeed switch and action switch, installation frame 1 still assembly has with rotationally connected ratchet 3, installation frame 1 is provided with speed limiting assembly 4, and speed limiting assembly 4 is rotationally connected with ratchet 3, installation frame 1 inside is provided with wire clamping structure 5;

[0025] The steel wire rope will carry out linear motion in the running process of mine hoist, at this moment, line wheel 2 is driven to rotate, when hoisting heavy object and breaking wire, heavy object falls and pulls steel wire rope to move fast, at this moment, line wheel 2 will rotate fast, in this process, overspeed switch will unfold and push action switch, action switch will be clamped in ratchet 3, and drive ratchet 3 to rotate, ratchet 3 rotates and drives speed limiting assembly 4 to press line wheel 2, and press on steel wire rope to hold, so that steel wire rope is clamped on line wheel 2, in turn, to prevent falling.

[0026] Please refer to Figure 3 , Figure 4 andFigure 5 The utility model provides a mine hoist broken rope anti -falling device, and the utility model relates to a kind of card line structure 5, fixed block 51 is fixed in the inside of mounting frame 1 by bolt, and fixed block 51 is located in the lower end of speed limiting assembly 4, wire slot 501 is set in the middle of fixed block 51, steel wire rope on wire wheel 2 moves along the surface of wire slot 501 in fixed block 51, fixed frame 52 is fixed in the inside lower end of mounting frame 1 by bolt, fixed frame 52 is equipped with push block 53 sliding horizontally, push block 53 and fixed frame 52 inner wall slidingly connect, push block 53 and fixed frame 52 inside right end fixed by bolt have telescopic sleeve pipe 54, the upper end of fixed frame 52 is provided with anti-warping plate 521, push block 53 slides along the surface of anti-warping plate 521, the phenomenon of edge warping of surface push block 53 can occur, and the telescopic end of push block 53 right end and telescopic sleeve pipe 54 is fixed, spring 55 is provided on the surface of telescopic sleeve pipe 54, one end of spring 55 is fixed on the surface of push block 53, and the other end is fixed on the inner wall of fixed frame 52, the surface of push block 53 is integrally formed with slide rod 56, slide rod 56 and fixed frame 52 slidingly connect, the front surface of push block 53 is fixed with extension block 57 by bolt, connecting plate 58 one end is rotatably connected with extension block 57, and the other end is rotatably connected with the surface of ratchet wheel 3, the front side of extension block 57 is also integrally formed with slide rod 56, and slide rod 56 and the front side inner wall of fixed frame 52 slidingly connect, the end surface of push block 53 is provided with pressing block 59, the wire slot 501 is set in pressing block 59, and anti-skid pressing block 502 is fixed in the guide groove 501, and the anti-skid effect is improved after lifting the steel wire rope and grasping;

[0027] Among them, the inside of fixed frame 52 is provided with telescopic rod 571, and the telescopic end of telescopic rod 571 is connected with extension block 57, and the fixed end of telescopic rod 571 is fixed on the inner wall of fixed frame 52 by bolt, the stability of extension block 57 and push block 53 sliding is improved, and second spring 572 is provided on the surface of telescopic rod 571, so that extension block 57 slides stably;

[0028] When push block 53 is reset into fixed frame 52, pressing block 59 abuts against the surface of fixed frame 52, and the pressing block 59 can be positioned;

[0029] Among them, the inside of push block 53 is provided with mounting seat 531, and the inside of mounting seat 531 is provided with ball 532, and ball 532 is in contact with the inner wall of fixed frame 52, to reduce the friction between push block 53 and fixed frame 52;

[0030] When the ratchet wheel 3 rotates, the speed limiting assembly 4 will limit the speed of the steel wire on the wire wheel 2, at the same time, the ratchet wheel 3 will push the connecting plate 58, the connecting plate 58 will push the extension block 57 to make the push block 53 slide to the left in the fixed frame 52, at this time, the slide rod 56 will slide along the inner wall of the fixed frame 52, when the push block 53 slides to the left, the spring 55 will be stretched to generate elastic force, and the telescopic sleeve 54 will be extended, then the push block 53 will push the pressing block 59 to press the steel wire on the fixed block 51, when the speed limiting assembly 4 completely clamps the steel wire on the wire wheel 2, the pressing block 59 will also completely press on the fixed block 51, and firmly clamp the steel wire in the fixed block 51, further reinforcing the limiting of the steel wire, improving the anti-falling effect, effectively avoiding the phenomenon of slipping.

[0031] The above only describes preferred examples of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A mine hoist rope breaking device, comprising a mounting frame (1), a wire wheel (2) is arranged in the mounting frame (1), and a ratchet wheel (3) is further arranged in the mounting frame (1), the wire wheel (2) is provided with an action assembly and an overspeed switch, a speed limiting assembly (4) is arranged on the mounting frame (1) and connected with the ratchet wheel (3); characterized in that Further comprising a wire clamping structure (5), the wire clamping structure (5) is arranged in the mounting frame (1), the wire clamping structure (5) comprises a fixed block (51), the fixed block (51) is arranged in the mounting frame (1), a fixed frame (52) is arranged at the lower end of the mounting frame (1), a push block (53) is arranged in the fixed frame (52), the push block (53) is connected with a telescopic sleeve (54) fixed in the fixed frame (52), a spring (55) is arranged on the surface of the telescopic sleeve (54), a sliding rod (56) is arranged on the surface of the push block (53), the sliding rod (56) is slidingly connected with the fixed frame (52), an extension block (57) is arranged on the surface of the push block (53), a connecting plate (58) is rotatably connected with the extension block (57) at one end and rotatably connected with the surface of the ratchet wheel (3) at the other end, and a pressing block (59) is arranged on the end surface of the push block (53).

2. The mine hoist rope breakage arrestment device of claim 1, wherein: A wire guide groove (501) is arranged in the middle of the fixed block (51), and the wire guide groove (501) is also arranged on the pressing block (59).

3. The mine hoist rope breakage arrestment device of claim 2, wherein: A rear anti-skid pressing block (502) is arranged in the wire guide groove (501) on the pressing block (59).

4. The mine hoist rope breakage arrestment device of claim 1, wherein: The surface of the extension block (57) is also provided with a sliding rod (56), and the sliding rod (56) is slidingly connected with the fixed frame (52).

5. The mine hoist rope breakage arrestment device of claim 4, wherein: A telescopic rod (571) is arranged in the fixed frame (52), the telescopic end of the telescopic rod (571) is connected with the extension block (57), and a second spring (572) is arranged on the surface of the telescopic rod (571).

6. The mine hoist rope breakage arrestment device of claim 1, wherein: When the push block (53) is reset into the fixed frame (52), the pressing block (59) abuts against the surface of the fixed frame (52).

7. The mine hoist rope breakage arrestment device of claim 1, wherein: An anti-warping plate (521) is arranged at the upper end of the fixed frame (52), and the push block (53) slides along the surface of the anti-warping plate (521).

8. The mine hoist rope breakage arrestment device of claim 1, wherein: An installation seat (531) is arranged in the push block (53), a ball (532) is arranged in the installation seat (531), and the ball (532) is in contact with the inner wall of the fixed frame (52).

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