CN112573416A

CN112573416A - Buffering formula mining winch stopper

Info

Publication number: CN112573416A
Application number: CN202011501970.1A
Authority: CN
Inventors: 王伟峰; 卢钢军
Original assignee: Henan Geng Fa Machinery Manufacturing Co ltd
Current assignee: Henan Geng Fa Machinery Manufacturing Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-03-30

Abstract

The invention discloses a buffer type mining winch brake, which comprises a brake seat and a brake pad, wherein an inner flange and a stop block are integrally arranged on the inner wall of the brake seat, a clamping groove is formed in the inner flange, a clamping block is slidably inserted in the clamping groove, a piston is fixedly arranged at the top of the clamping block, the bottom of the brake seat is detachably and fixedly connected with a sealing cover, a base is arranged above the sealing cover, a slot is formed in the base, an ejector rod is fixedly connected to the top of the base, a pressing plate is arranged above the ejector rod, an injection pipe and a liquid discharge pipe are further arranged on the outer wall of the brake seat, the brake seat is connected with the brake pad by, when the brake pad is impacted by larger inertia force, the base drives the ejector rod to break the press plate, and the impact force is transmitted to the buffer medium in the manufacturing seat to buffer and release the pressure, so that the instantaneous impact force caused by inertia is relieved, and the secondary damage of the inertia force to passengers or articles is avoided.

Description

Buffering formula mining winch stopper

Technical Field

The invention belongs to the technical field of winch brakes, and particularly relates to a buffer type mining winch brake.

Background

The mining winch is a light and small hoisting device for hoisting or pulling heavy objects by winding a steel wire rope by using a winding drum, can be used independently, and is widely applied due to simple operation, large rope winding amount and convenient displacement. The winch brake is a mechanical part for stopping or decelerating a moving winch, but the conventional brake does not consider the problem of inertia force generated by emergency braking of the winch in the braking process, particularly a manned winch, when emergency braking is needed due to danger, impact force generated by the inertia force is likely to cause secondary damage to passengers or goods, and therefore further improvement on a braking device is needed to improve the braking performance.

Disclosure of Invention

The invention aims to provide a buffer type mining winch brake to solve the problems in the background technology.

A buffer type mining winch brake comprises a brake seat and a brake pad, wherein an inner flange and a stop block are integrally arranged on the inner wall of the brake seat, a clamping groove is formed in the inner flange, a clamping block is inserted in the clamping groove in a sliding mode, a piston A is fixedly arranged at the top of the clamping block and is slidably arranged on the inner wall of the brake seat, a cavity A is formed between the piston A and the inner wall of the brake seat, a piston B is further slidably arranged on the inner wall of the brake seat and is arranged between the inner flange and the stop block, a cavity B is formed between the piston B and the inner flange, a sealing cover is detachably and fixedly connected to the bottom of the brake seat, a base is arranged above the sealing cover, a slot is formed in the base, a push rod is fixedly connected to the top of the base, a pressing plate is arranged above the push rod and is clamped between the push rod and the stop block, a sliding groove and a strip-shaped groove, the slider cooperation is installed in the spout, and the inserted bar passes and inserts and establish in the slot from the bar groove, still be provided with injection pipe and fluid-discharge tube on the outer wall of brake seat, injection pipe and cavity A inner space are linked together, installs the rupture disk in the injection pipe, and the fluid-discharge tube sets up on being located the brake seat outer wall between piston A and the inner flange.

Preferably, the outer wall of the brake seat is further provided with a liquid injection pipe, the liquid injection pipe is communicated with the inner space of the cavity B, and the liquid injection pipe is provided with a valve.

Preferably, the hydraulic control device further comprises two brake arms, a hydraulic cylinder and a hydraulic control unit, the two brake arms and the two brake seats are respectively arranged, the two brake arms are symmetrically arranged, one ends of the two brake arms are respectively hinged to piston rods of the hydraulic cylinder, the other ends of the two brake arms are respectively hinged to the two brake seats, and the hydraulic control unit controls oil inlet and oil outlet of the hydraulic cylinder.

Preferably, the brake device further comprises two brake arm seats, the two brake arm seats are respectively fixed on the inner side surfaces of the two brake arms, and a plurality of fixing holes are respectively formed in the two brake arm seats.

Compared with the prior art, the invention has the following beneficial effects: the base is connected with the brake pad, when the brake pad is impacted by larger inertia force, the base drives the ejector rod to break the press plate, and the impact force is transmitted to the buffer medium in the manufacturing seat to buffer and release the pressure, so that the instant impact force caused by inertia is relieved, and secondary damage to passengers or articles caused by the inertia force is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a schematic view of the internal structure of a brake shoe according to the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the opening positions of the chute and the strip-shaped groove in the present invention.

In the figure: 1. a brake base; 2. a cavity A; 3. a piston A; 4. a liquid discharge pipe; 5. a liquid injection pipe; 6. a cavity B; 7. a piston B; 8. a top rod; 9. a base; 10. inserting a rod; 11. sealing the cover; 12. a slot; 13. a strip-shaped groove; 14. pressing a plate; 15. a stopper; 16. a slider; 17. a chute; 18. an inner flange; 19. a card slot; 20. a clamping block; 21. a brake pad; 22. an injection pipe; 23. a cavity C; 24. a fixing hole; 25. a brake arm base; 26. a brake arm; 27. and a hydraulic cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a buffer mining winch brake comprises a brake seat 1 and a brake pad 21, an inner flange 18 and a stop block 15 are integrally arranged on the inner wall of the brake seat 1, a clamping groove 19 is formed in the inner flange 18, a clamping block 20 is slidably inserted in the clamping groove 19, a piston A3 is fixedly arranged at the top of the clamping block 20, a piston A3 is slidably arranged on the inner wall of the brake seat 1, a cavity A2 is formed between a piston A3 and the inner wall of the brake seat 1, a piston B7 is further slidably arranged on the inner wall of the brake seat 1, a piston B7 is arranged between the inner flange 18 and the stop block 15, a cavity B6 is formed between a piston B7 and the inner flange 18, buffer media are respectively filled in the cavity A2 and the cavity B6, a sealing cover 11 is detachably and fixedly connected to the bottom of the brake seat 1, a base 9 is arranged above the sealing cover 11, a slot 12 is arranged in the base 9, a push rod 8 is fixedly connected to, the pressing plate 14 can be made of a composite aluminum plate, the sealing cover 11 is used for preventing the base 9 from falling off and enabling the pressing plate 14 to be clamped between the ejector rod 8 and the stop block 15, so that the base 9, the ejector rod 8, the pressing plate 14 and the stop block 15 are in tight contact without gaps, the side wall of the brake base 1 is provided with a sliding groove 17 and a strip-shaped groove 13, the inner wall of the brake pad 21 is fixedly connected with a sliding block 16 and an inserted rod 10, the sliding block 16 is installed in the sliding groove 17 in a matched mode, the inserted rod 10 penetrates through the strip-shaped groove 13 and is inserted into the slot 12, the outer wall of the brake base 1 is further provided with an injection pipe 22 and a liquid discharge pipe 4, the injection pipe 22 is communicated with the inner space of the cavity A2, the injection pipe 22 is internally provided with a bursting sheet, the liquid discharge pipe 4 is arranged on the outer wall of the brake base 1 between the piston A3 and the inner flange 18, the, be provided with the valve on annotating liquid pipe 5, still including brake arm 26, pneumatic cylinder 27 and hydraulic control unit, brake arm 26 and brake seat 1 are provided with two respectively, two brake arm 26 symmetries set up, the one end of two brake arms 26 is articulated with the piston rod of pneumatic cylinder 27 respectively, the other end of two brake arms 26 articulates respectively on two brake seats 1, hydraulic control unit control pneumatic cylinder 27's oil feed and play oil, still including two brake arm seats 25, two brake arm seats 25 are fixed respectively on the medial surface of two brake arms 26, a plurality of fixed orificess 24 have been seted up respectively on two brake arm seats 25.

The working mode and the principle of the invention are as follows: when the winch is in emergency braking, the brake pad 21 is impacted by a large inertia force to generate a tendency of moving upwards, the base 9 connected with the brake pad 21 drives the ejector rod 8 to generate a large extrusion force on the pressure plate 14, the two sides of the pressure plate 14 are subjected to the resistance of the stop blocks 15 to cause the two sides of the pressure plate 14 to break, the ejector rod 8 drives the residual pressure plate 14 to move upwards and extrude the piston B7, the piston B7 further extrudes the medium in the cavity B6 to move upwards, under the condition that the winch does not stop moving, the total amount of the medium in the cavity B6 is unchanged, the volume is reduced, the force released by the intermediate medium is larger, the acting force is increased by extruding the medium in the inner space to play a role in blocking and buffering, the medium in the cavity B6 further generates an extrusion force on the piston A3, and when the extrusion force is too large and exceeds the preset bearing range of the rupture disk in the injection pipe 22, the rupture disk in the injection pipe 22 is broken, the medium in the cavity A2 is sprayed out from the injection pipe 22, meanwhile, the fixture block 20 is pulled out from the clamping groove 19, the cavity B6 is communicated with the liquid discharge pipe 4, and at the moment, the medium in the cavity B6 is sprayed out slowly through the liquid discharge pipe 4, so that the effect of buffering and pressure relief is achieved, and the damage of instantaneous impact force caused by inertia to people or articles on the winch is relieved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a buffering formula mining winch stopper, includes brake block (1) and brake block (21), its characterized in that: an inner flange (18) and a stop block (15) are integrally arranged on the inner wall of the brake seat (1), a clamping groove (19) is formed in the inner flange (18), a clamping block (20) is inserted in the clamping groove (19) in a sliding manner, a piston A (3) is fixedly arranged at the top of the clamping block (20), the piston A (3) is installed on the inner wall of the brake seat (1) in a sliding manner, a cavity A (2) is formed between the piston A (3) and the inner wall of the brake seat (1), a piston B (7) is further installed on the inner wall of the brake seat (1) in a sliding manner, the piston B (7) is arranged between the inner flange (18) and the stop block (15), a cavity B (6) is formed between the piston B (7) and the inner flange (18), a sealing cover (11) is detachably and fixedly connected to the bottom of the brake seat (1), a base (9) is arranged above the sealing cover (11), an insertion groove (12) is formed in, the brake device is characterized in that a pressing plate (14) is arranged above the ejector rod (8), the pressing plate (14) is clamped between the ejector rod (8) and the stop block (15), a sliding groove (17) and a strip-shaped groove (13) are formed in the side wall of the brake seat (1), a sliding block (16) and an inserting rod (10) are fixedly connected to the inner wall of the brake pad (21), the sliding block (16) is installed in the sliding groove (17) in a matched mode, the inserting rod (10) penetrates through the strip-shaped groove (13) and is inserted into the inserting groove (12), an injection pipe (22) and a liquid discharge pipe (4) are further arranged on the outer wall of the brake seat (1), the injection pipe (22) is communicated with the inner space of the cavity A (2), a bursting disc is installed in the injection pipe (22), and the liquid discharge pipe (4) is arranged on the outer wall of the brake seat (1) between the piston A (.

2. The buffered mining winch brake of claim 1, wherein: the brake device is characterized in that a liquid injection pipe (5) is further arranged on the outer wall of the brake seat (1), the liquid injection pipe (5) is communicated with the inner space of the cavity B (6), and a valve is arranged on the liquid injection pipe (5).

3. The buffered mining winch brake of claim 1, wherein: still including brake arm (26), pneumatic cylinder (27) and hydraulic control unit, brake arm (26) and brake seat (1) are provided with two respectively, and two brake arms (26) symmetry sets up, and the one end of two brake arms (26) is articulated with the piston rod of pneumatic cylinder (27) respectively, and the other end of two brake arms (26) articulates respectively on two brake seats (1), the oil feed and the play oil of hydraulic control unit control pneumatic cylinder (27).

4. The mining haulage winch brake of claim 3, wherein: the brake device is characterized by further comprising two brake arm seats (25), wherein the two brake arm seats (25) are respectively fixed on the inner side surfaces of the two brake arms (26), and a plurality of fixing holes (24) are respectively formed in the two brake arm seats (25).