阅读说明：本技术 一种矿井提升机下坠自救系统及控制方法 (Mine hoist falling self-rescue system and control method ) 是由 阳振文 罗政书 张随周 肖业俭 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种矿井提升机下坠自救系统及控制方法,系统包括绞车、提升容器和提升机控制系统,绞车与提升容器连接,提升机控制系统与绞车连接,提升容器上设置有木罐道、杠杆和固定铰接座,杠杆与固定铰接座铰接,杠杆的一端设置有齿爪,提升容器上安装有控制器、速度传感器、深度传感器、报警器和手动防坠器,速度传感器、报警器、提升机控制系统和深度传感器均与控制器连接,手动防坠器包括可驱动杠杆上下偏摆的推杆、推杆上下驱动机构和驱动机构控制器,控制推杆上下驱动机构的驱动机构控制器设置在提升容器内。当提升容器有人员乘坐且发生坠落时,可通过声光报警器提醒乘坐人员手动触发防坠器等多种方式防坠,减少人员伤亡。(The invention discloses a mine hoist falling self-rescue system and a control method, the system comprises a winch, a hoist container and a hoist control system, the winch is connected with the hoist container, the hoist control system is connected with the winch, a wooden guide, a lever and a fixed hinge seat are arranged on the hoist container, the lever is hinged with the fixed hinge seat, one end of the lever is provided with a tooth claw, the hoist container is provided with a controller, a speed sensor, a depth sensor, an alarm and a manual falling protector, the speed sensor, the alarm, the hoist control system and the depth sensor are all connected with the controller, the manual falling protector comprises a push rod capable of driving the lever to swing up and down, a push rod up-down driving mechanism and a driving mechanism controller, and the driving mechanism controller for controlling the push rod up-down driving mechanism is arranged in the hoist container. When a person sits in the lifting container and falls, the person sitting can be reminded by the audible and visual alarm to manually trigger the falling protector to prevent falling in various ways, and casualties are reduced.)

1. the utility model provides a mine hoist system of saving oneself that falls, includes winch (22), promotion container (1) and hoist control system (29), winch (22) with it connects to promote container (1), hoist control system (29) with winch (22) are connected, it articulates seat (41) to be provided with wooden cage guide (11), lever (4) and fixed articulated seat (41) on container (1) to promote, lever (4) with fixed articulated seat (41) are articulated, the one end of lever (4) is provided with claw (5) that can carry wooden cage guide (11), its characterized in that, install controller (28), speedtransmitter (26), depth sensor (27), alarm (30) and manual safety hook on promoting container (1), speedtransmitter (26), alarm (30), hoist control system (29) and depth sensor (27) all with controller (28) are connected, the manual falling protector comprises a push rod (2) capable of driving a lever (4) to swing up and down, a push rod up-down driving mechanism and a driving mechanism controller, wherein the driving mechanism controller for controlling the push rod up-down driving mechanism is arranged in the lifting container (1).

2. the mine hoist fall self-rescue system as claimed in claim 1, further comprising a travel switch (31) for colliding with either end of the lever (4) for triggering, the travel switch (31) being connected to the hoist control system (29).

3. The mine hoist fall self-rescue system as claimed in claim 2, 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).

4. The mine hoist fall self-rescue system as claimed in claim 3, characterized in that the push rod up-and-down driving mechanism comprises a first 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 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 installed in the lifting container (1).

5. The mine hoist fall self-rescue system as claimed in claim 4, characterized in that 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), and the other end extends towards the bottom of the lifting container (1).

6. the mine hoist fall self-rescue system as claimed in claim 4, characterized in that the first cut-off valve (7) is a pneumatic cut-off valve, the cut-off valve controller comprises a second cut-off valve (15) and a second accumulator (16), the second cut-off valve (15) is a manual cut-off valve, and the second cut-off valve (15) is arranged on a pipeline where the second accumulator (16) and the first cut-off valve (7) are connected.

7. The mine hoist fall self-rescue system according to claim 4, 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, the end of the piston rod (62) is connected with the push rod (2), one end of the pneumatic actuator (6) is hinged with the hoisting container (1), and the other end is hinged with the push rod (2).

8. The mine hoist system of saving oneself that falls down of claim 2-6 any, characterized in that still includes the spring and prevents weighing down the mechanism, the spring prevents weighing down the mechanism and includes gallows (17), colludes pole (19) and spring (18), the one end of gallows (17) with the winch rope (20) of lifting machine is connected, the other end with collude pole (19) and connect, the upper end of spring (18) is passed through it is spacing to promote container (1), the lower extreme is through setting up spacing baffle (23) on gallows (17) are spacing, collude and be provided with couple (24) that can catch on lever (4) one end on pole (19), push rod (2) are provided with drive lever (4) one end pivoted actuating lever (25).

9. the mine hoist fall self-rescue system as claimed in claim 8, 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) and the other end being connected to the fixed hinge base (41).

10. A control method of a mine hoist fall self-rescue system, which is characterized by comprising the mine hoist fall self-rescue system of any one of the claims 2 to 9,

When the controller (28) judges that the speed is stalled by calculating a signal of the speed sensor (26) and a signal of the depth sensor (27), the controller (28) feeds an emergency stop signal back to a hoist control system (29) to drive the winch (22) to perform emergency stop, and meanwhile, the controller (28) controls the alarm (30) to perform audible and visual alarm to remind passengers that the lifting container (1) is stalled and falls down and the passengers operate the manual falling protector after receiving the alarm;

When the passenger judges that the speed is stalled through sensing, the manual falling protector is operated to perform falling prevention braking, the manual falling protector triggers the travel switch (31) to send an emergency stop signal to the hoist control system (29), and the hoist control system (29) drives the winch (22) to perform emergency stop;

When the hoist control system (29) detects that the lifting container (1) stalls and falls down, the hoist control system (29) feeds a stall signal back to the controller (28), and the controller (28) controls the alarm (30) to give out an audible and visual alarm to remind a passenger to manually operate the manual falling protector.

Technical Field

The invention relates to the technical field of mining equipment, in particular to a mine hoist falling self-rescue system and a control method.

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.

disclosure of Invention

The invention aims to provide a falling self-rescue system of a mine hoist and a control method, thereby solving the problems.

in order to realize the aim, the invention firstly discloses a falling self-rescue system of a mine hoist, which comprises a winch, a hoisting container and a hoist control system, the winch is connected with the lifting container, the hoist control system is connected with the winch, the lifting container is provided with a wooden guide, a lever and a fixed hinge seat, the lever is hinged with the fixed hinge seat, one end of the lever is provided with a tooth claw capable of clamping the wooden guide, the lifting container is provided with a controller, a speed sensor, a depth sensor, an alarm and a manual falling protector, the speed sensor, the alarm, the elevator control system and the depth sensor are all connected with the controller, the manual falling protector comprises a push rod capable of driving the lever to swing up and down, a push rod up-and-down driving mechanism and a driving mechanism controller, and the driving mechanism controller for controlling the push rod up-and-down driving mechanism is arranged in the lifting container.

further, the lifting device also comprises a travel switch which is used for colliding with either end of the lever to trigger, and the travel switch is connected with the lifting machine control system.

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, the end part of the piston rod is connected with the push rod, 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.

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.

Then, the invention discloses a control method of a mine hoist falling self-rescue system, which comprises the mine hoist falling self-rescue system in the scheme,

When the controller calculates the speed sensor signal and the depth sensor signal and judges that the speed is stalled, the controller feeds an emergency stop signal back to the hoist control system to drive the winch to perform emergency stop, and simultaneously the controller controls the alarm to perform audible and visual alarm to remind a passenger of lifting the container to drop when the speed is stalled and the passenger operates the manual falling protector after receiving the alarm;

When the passenger is judged to be stalled through sensing, the manual falling protector is operated to perform falling prevention braking, the manual falling protector triggers the travel switch to send an emergency stop signal to the hoist control system, and the hoist control system drives the winch to perform emergency stop;

when the hoist control system detects that the lifting container stalls and falls, the hoist control system feeds a stall signal back to the controller, and the controller controls the alarm to give out audible and visual alarm to remind a passenger to manually operate the manual falling protector.

Compared with the prior art, the invention has the advantages that:

according to the invention, after the winch is controlled by the existing hoist control system to partially or completely lose efficacy, when a person sits in the hoisting container and falls, the person can be reminded to manually trigger the falling protector by the audible and visual alarm in time, so that casualties are reduced. Alternatively, the occupant may manually trigger the safety brake by sensing stall. The structure of the invention does not need external power supply, is simple and reliable, has low cost, and has little influence on the overall manufacturing cost of the elevator. The first energy accumulator is filled with high-pressure compressed air, the first cut-off valve is in a cut-off state, when the lifting container falls down, an operator in the lifting container quickly opens the first cut-off valve to enable the first energy accumulator to be communicated with the cut-off valve, and therefore the first energy accumulator is controlled to be communicated with the pneumatic actuator, and the falling protector is triggered. The whole process has no electric drive or electric control, further avoids the occurrence of mine explosion caused by electric sparks, further plays a role of double insurance through the spring anti-falling mechanisms arranged in parallel, reduces the probability of overall failure by two orders of magnitude, and thus obviously improves the safety performance of the hoister.

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, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic control principle diagram of a mine hoist dropping self-rescue system disclosed in an embodiment of the invention;

FIG. 2 is a schematic structural view of a disclosed manual safety brake device according to an embodiment of the disclosure;

FIG. 3 is a schematic structural diagram of a manual safety hook disclosed in the second embodiment of the disclosure;

Fig. 4 is a schematic structural diagram of a manual falling protector disclosed in the third embodiment of the disclosure.

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; 26. a speed sensor; 27. a depth sensor; 28. a controller; 29. a hoist control system; 30. an alarm; 31. a travel switch.

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.