CN210914861U

CN210914861U - Falling protector for mine hoist

Info

Publication number: CN210914861U
Application number: CN201921642874.1U
Authority: CN
Inventors: 阳振文; 罗政书; 张随周; 肖业俭
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-03
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a mine winder safety hook, including promoting the container and installing the push rod in promoting the container, the lever, fixed articulated seat, the tooth claw, actuating mechanism and actuating mechanism controller about the push rod, the push rod slides at vertical direction and promotion container and connects, and actuating mechanism is connected about push rod and the push rod, and actuating mechanism's actuating mechanism controller setting is in promoting the container about the control push rod, and the lever is articulated with fixed articulated seat, and the at least one end of push rod is connected with the one end of lever, and the other end of lever is connected with the tooth claw that can clip wooden cage guide. Therefore, when a person sits in the lifting container and falls, the falling protector can be manually triggered in time, and casualties are reduced. Simultaneously, this utility model structure does not need the external power supply, and is simple reliable, and low cost is little to the manufacturing cost influence of lifting machine totality.

Description

Falling protector for mine hoist

Technical Field

The utility model relates to a mining equips technical field, especially relates to a mine winder safety hook.

Background

A mine hoist is a large hoisting machine. The winch drives the steel wire rope, so that the lifting container is driven to lift in the shaft, and the conveying task is completed. The safety catch has the function of quickly braking the lifting container when a steel wire is broken or the winch stalls, so that loss is reduced. In the prior art, the falling protector is arranged between a steel wire rope and a lifting container (the steel wire rope is wound on a winch, and the winch is frictionally braked by a winch drum brake), when the tension of the steel wire rope on the lifting container fails, the falling protector is triggered to act, a wooden cage guide is clamped by tooth claws of the falling protector, and then the lifting container is braked to prevent falling.

The obvious defects of the existing falling protector are as follows: when the winch drum brake is only partially failed, part of braking force remains, and the lifting container cannot be braked, the lifting container falls under the action of force, namely the pulling force between the steel wire rope and the hanger frame does not completely disappear, the steel wire rope still has an upward pulling acting force at the moment, and the falling protector cannot be touched at the moment, so that the whole braking falling prevention process fails.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mine winder safety hook to solve above-mentioned problem.

In order to realize the purpose, the utility model discloses a mine winder safety hook, including promoting the container and installing actuating mechanism and actuating mechanism controller about push rod, lever, fixed articulated seat, tooth claw, the push rod in the promotion container, the push rod in vertical direction with promote the container and slide and connect, the push rod with actuating mechanism connects about the push rod, controls actuating mechanism's actuating mechanism controller setting is in about the push rod promote in the container, the lever with fixed articulated seat is articulated, the at least one end of push rod with the one end of lever is connected, the other end of lever with can clip wooden cage guide the tooth claw is connected.

Furthermore, the device also comprises a connecting rod, wherein one end of the connecting rod is hinged with the push rod, and the other end of the connecting rod is hinged with one end of the lever.

Further, actuating mechanism includes first energy storage ware and pneumatic actuator about the push rod, the actuating mechanism controller includes first cut-off valve and trip valve controller, the output of first energy storage ware pass through the pipeline with the input of first cut-off valve is connected, the output of first cut-off valve pass through the pipeline with pneumatic actuator connects, pneumatic actuator's execution end with the push rod is connected, with first cut-off valve is connected the cut-off valve controller is installed in the lifting container.

Furthermore, first shut-off valve is manual shut-off valve, the shut-off valve controller is pull rod or stay cord, the one end of pull rod or stay cord with first shut-off valve is connected, the other end to promote the bottom extension of container.

Further, first shut-off valve is the pneumatic shut-off valve, the shut-off valve controller includes second shut-off valve and second energy storage ware, the second shut-off valve is manual shut-off valve, the second shut-off valve sets up on the pipeline that second energy storage ware and first shut-off valve are connected.

Furthermore, the pneumatic actuator is an air cylinder with a piston rod arranged inside, a piston rod reset spring is sleeved on the piston rod in the air cylinder, and the end part of the piston rod is connected with the push rod.

Furthermore, one end of the pneumatic actuator is hinged with the lifting container, and the other end of the pneumatic actuator is hinged with the push rod.

Furthermore, the lever, the fixed hinged seat and the tooth claw are symmetrically arranged on two sides of the wooden guide.

Further, still include the spring and prevent weighing down the mechanism, the spring prevents weighing down the mechanism and includes gallows, collude pole and spring, the one end of gallows with the winch rope of lifting machine is connected, the other end with collude the pole and connect, the upper end of spring is passed through it is spacing to promote the container, and the lower extreme is through setting up spacing baffle on the gallows is spacing, it is provided with the couple that can catch on lever one end to collude on the pole, the push rod is provided with the pivoted actuating lever of drive lever one end.

Furthermore, the device also comprises a lever return spring, one end of the lever return spring is connected with the other end of the lever, and the other end of the lever return spring is connected with the fixed hinged seat.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a be filled with high-pressure compressed air in first energy storage ware, first cut-off valve is in the off-state, and when promoting the container tenesmus, the operating personnel who promotes in the container opens first cut-off valve rapidly, lets first energy storage ware and trip valve intercommunication to control first energy storage ware and pneumatic actuator intercommunication, and then trigger the safety hook. Therefore, when a person sits in the lifting container and falls, the falling protector can be manually triggered in time, and casualties are reduced. Simultaneously, this utility model structure does not need the external power supply, and is simple reliable, and low cost is little to the manufacturing cost influence of lifting machine totality, and whole process does not have the existence of electric drive or electric control, has further avoided the electric spark to lead to the emergence of mine blasting, and is further, prevents weighing down the effect that the mechanism played double insurance through the spring of parallel arrangement, has reduced two orders of magnitude with the probability of whole inefficacy to show the security performance that has improved the lifting machine.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural view of a mine hoist fall arrester disclosed in the first embodiment of the present invention;

fig. 2 is a schematic structural view of a mine hoist fall arrester disclosed in the second embodiment of the present invention;

fig. 3 is a schematic structural view of a fall arrester of a mine hoist disclosed in the third embodiment of the present invention.

Illustration of the drawings:

1. lifting the container; 2. a push rod; 3. a connecting rod; 4. a lever; 41. fixing the hinge seat; 5. a toothed claw; 6. a pneumatic actuator; 61. a pneumatic actuator mounting seat; 62. a piston rod; 63. a piston rod return spring; 7. a first shut-off valve; 8. a first accumulator; 9. a pull rod; 10. an operating handle; 11. a wooden cage guide; 12. a control pipeline; 15. a second shut-off valve; 16. a second accumulator; 17. a hanger; 18. a spring; 19. hooking a rod; 20. a winch rope; 21. a lever return spring; 22. a winch; 23. a limit baffle; 24, hooking; 25. a drive rod.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The first embodiment is as follows:

as shown in fig. 1, the embodiment of the utility model discloses a mine hoist safety hook, including promoting container 1 and installing push rod 2 in promoting container 1, connecting rod 3, lever 4, fixed articulated seat 41, claw 5, actuating mechanism and actuating mechanism controller about the push rod, push rod 2 is the type of falling T structure, slide with promoting container 1 in vertical direction, at least one end of this push rod 2 is articulated with the one end of the connecting rod 3 of vertical setting, the other end of connecting rod 3 is articulated with the one end of lever 4, the other end of lever 4 is connected with claw 5 that can clip wooden shaft 11, lever 4 is articulated with fixed articulated seat 41 between its both ends, push rod 2 is connected and drives claw 5 and clip wooden shaft 11 through being connected with actuating mechanism about the push rod, wherein, wooden shaft 11 is fixed in the pit shaft, do not move along with the lift that promotes container 1. Therefore, when the lifting container falls with force, the falling protector can be triggered by manually operating the driving mechanism controller positioned in the lifting container 1, and casualties are reduced. The problem that the tooth claw 5 cannot clamp the wooden guide 11 after the traditional lifting container falls with force is avoided.

In this embodiment, the push rod up-and-down driving mechanism comprises a first energy accumulator 8 and a pneumatic actuator 6, the driving mechanism controller comprises a first cut-off valve 7 and a cut-off valve controller, the output end of the first energy accumulator 8 is connected with the input end of the first cut-off valve 7 through a pipeline, the output end of the first cut-off valve 7 is connected with the pneumatic actuator 6 through a pipeline, the execution end of the pneumatic actuator 6 is connected with the push rod 2, and the cut-off valve controller connected with the first cut-off valve 7 is also installed in the lifting container. Specifically, the first cut-off valve 7 is a manual cut-off valve, the cut-off valve controller is a pull rod 9 (or a pull rope), one end of the pull rod 9 (or the pull rope) is connected with the first cut-off valve 7, the other end of the pull rod extends to the bottom of the lifting container 1, the pneumatic actuator 6 is a driving cylinder with a piston rod 62 arranged inside, a piston rod reset spring 63 is sleeved on the piston rod 62 inside the cylinder, and the end part of the piston rod 62 is connected with the push rod 2. When the piston at the end of the piston rod 62 is located at the position A, the first cut-off valve 7 is in a closed state, and when the first cut-off valve 7 is in an open state, the piston at the end of the piston rod 62 moves to the position B, and when the device is used, the first cut-off valve 7 can be opened only by pulling the operating handle 10 at the tail end of the pull rod 9 (or the pull rope) downwards, so that the first energy accumulator 8 can drive the pneumatic actuator 6 to clamp the wooden cage guide 11 through the pneumatic actuator 6, and the whole process has no electric drive or electric control, thereby further avoiding the occurrence of mine blasting caused by electric sparks.

In the present embodiment, in consideration of the assembling process and the deflection of the pneumatic actuator 6 during the action process, one end of the pneumatic actuator 6 is hinged to the pneumatic actuator mounting seat 61, the pneumatic actuator mounting seat 61 is connected to the lifting container, and the other end is hinged to the push rod 2.

In this embodiment, the lever 4, the fixed hinge base 41 and the claw 5 are symmetrically disposed at both sides of the wooden guide 11, so that the wooden guide 11 and the lifting container 1 can be uniformly stressed.

Example two:

in this embodiment, see fig. 2, the first shut-off valve 7 is a pneumatic shut-off valve, the shut-off valve controller comprises a second shut-off valve 15 and a second accumulator 16, the second shut-off valve 15 is a manual shut-off valve, and the second shut-off valve 15 is arranged on the control line 12 connecting the second accumulator 16 and the first shut-off valve 7. When the lifting container 1 is used and falls down, an operator in the lifting container 1 quickly opens the second cut-off valve 15 to communicate the second energy accumulator 16 with the first cut-off valve 7, so that the first energy accumulator 8 is automatically controlled to be communicated with the first cut-off valve 7 to trigger the falling protector to act, and the operation is more labor-saving compared with the manual pulling of the pull rod 9.

Example three:

in this embodiment, as shown in fig. 3, a spring anti-falling mechanism is integrated in parallel on the basis of the first or second embodiment, specifically, the spring anti-falling mechanism includes a hanger 17, a hooking rod 19 and a spring 18, one end of the hanger 17 is connected to a winch rope 20 of a hoist 22, the other end is connected to the hooking rod 19, the upper end of the spring 18 is limited by the hoisting container 1, the lower end is limited by a limit baffle 23 disposed on the hanger 17, the hooking rod 19 is a transverse U-shaped rod structure, the hanger 17 is fixedly connected to the middle of the hooking rod 19, two ends of the hanger 17 are provided with hooks 24 capable of hooking one end of the lever 4, the other end of the lever 4 is provided with a lever return spring 21, one end of the lever return spring 21 is connected to the other end of the lever 4, and the other end of the lever return spring is connected to a fixed hinge base 41, so as to ensure that the lever 4 is separated from the wooden, Thereby driving the tooth claw 5 to rotate upwards to clamp the driving rod 25 of the wooden guide 11, the driving rod 25 is connected with the lever 4 in a contact way, and the end part can be provided with a roller. Therefore, a double-insurance effect of preventing falling of the lifting container 1 can be achieved, the probability of failure of one or two of the embodiments is assumed to be 1%, the probability of failure of the spring falling prevention mechanism of the embodiment is 1%, the probability of falling prevention failure of the whole lifting container 1 is 1% by 1% to 0.00001, namely one ten thousandth, the probability of whole failure is reduced by two orders of magnitude through the parallel arrangement mode, and therefore the safety performance of the lifting machine is remarkably improved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mine hoist safety hook, its characterized in that, including promoting container (1) and installing push rod (2), lever (4), fixed articulated seat (41), tooth claw (5), the upper and lower actuating mechanism of push rod and actuating mechanism controller in promoting container (1), push rod (2) in vertical direction with promote container (1) sliding connection, push rod (2) with actuating mechanism is connected about the push rod, control actuating mechanism's actuating mechanism controller setting is in promoting container (1) about the push rod, lever (4) with fixed articulated seat (41) are articulated, at least one end of push rod (2) with the one end of lever (4) is connected, the other end of lever (4) with can clip wooden cage way (11) tooth claw (5) are connected.

2. The mine hoist fall arrester of claim 1 further comprising a connecting rod (3), wherein one end of the connecting rod (3) is hinged to the push rod (2) and the other end is hinged to one end of the lever (4).

3. The mine hoist fall arrester of claim 1 wherein the push rod up and down drive mechanism includes a first accumulator (8) and a pneumatic actuator (6), the drive mechanism controller includes a first cut-off valve (7) and a cut-off valve controller, the output of the first accumulator (8) is connected with the input of the first cut-off valve (7) through a pipeline, the output of the first cut-off valve (7) is connected with the pneumatic actuator (6) through a pipeline, the actuating end of the pneumatic actuator (6) is connected with the push rod (2), and the cut-off valve controller connected with the first cut-off valve (7) is installed in the hoist container (1).

4. Mine hoist fall arrester according to claim 3, characterized in that the first shut-off valve (7) is a manual shut-off valve and the shut-off valve controller is a pull rod (9) or a pull rope, one end of the pull rod (9) or pull rope being connected to the first shut-off valve (7) and the other end extending towards the bottom of the lifting container (1).

5. The mine hoist fall arrester of claim 3 wherein the first shut-off valve (7) is a pneumatic shut-off valve, the shut-off valve controller includes a second shut-off valve (15) and a second accumulator (16), the second shut-off valve (15) is a manual shut-off valve, the second shut-off valve (15) is disposed on a line where the second accumulator (16) and the first shut-off valve (7) are connected.

6. The mine hoist fall arrester as claimed in claim 3, characterized in that the pneumatic actuator (6) is a cylinder with a piston rod (62) inside, a piston rod return spring (63) is sleeved on the piston rod (62) inside the cylinder, and the end of the piston rod (62) is connected with the push rod (2).

7. The mine hoist fall arrester of claims 3-5 wherein the pneumatic actuator (6) is articulated at one end to the hoist container (1) and at the other end to the push rod (2).

8. The mine hoist fall arrester of any of claims 1-5 wherein the lever (4), fixed hinge mount (41) and claw (5) are symmetrically disposed on either side of the wooden guide (11).

9. The mine hoist fall arrester as claimed in any one of claims 1-5, further comprising a spring fall arresting mechanism, wherein the spring fall arresting mechanism comprises a hanger (17), a hooking rod (19) and a spring (18), one end of the hanger (17) is connected with a winch rope (20) of the hoist, the other end is connected with the hooking rod (19), the upper end of the spring (18) is limited by the hoisting container (1), the lower end is limited by a limit baffle (23) arranged on the hanger (17), a hook (24) capable of hooking one end of the lever (4) is arranged on the hooking rod (19), and the push rod (2) is provided with a driving rod (25) for driving one end of the lever (4) to rotate.

10. The mine hoist fall arrester of claim 9 further comprising a lever return spring (21), one end of the lever return spring (21) being connected to the other end of the lever (4), the other end of the lever return spring (21) being connected to the fixed hinge mount (41).