Real object operation testing and training device for coal mine hoister

Abstract

The invention discloses a real object operation test device for a coal mine hoist, and belongs to the field of test simulation equipment. The equipment comprises a simulation table, the middle of the simulation table is fixedly connected with a lifting frame, the lifting frame is internally and vertically connected with a placement plate in a sliding mode, the two sides of the lifting frame are symmetrically connected with two sets of vertically-arranged conveying belts in a transmission mode, a load adjusting block is fixedly connected between the two sets of conveying belts, and the running resistance of the conveying belts is variable. Therefore, the moving resistance applied to the placing plate by the load adjusting block can be increased or decreased; according to the equipment, the load condition of the placing plate can be changed by controlling the running resistance of the conveying belt, so that the running state of the coal mine elevator in an actual scene is simulated, redundant counter weight objects do not need to be placed on the placing plate, the use convenience of the device is improved, the load of the placing plate can be rapidly increased or decreased in the test simulation process, and the test efficiency is improved. The situation that the operation resistance of the placing plate is increased due to cargo falling or other accidents of the coal mine elevator is simulated, and the emergency response ability of students is tested.

Description

Technical Field

[0001] The present invention relates to the technical field of examination simulation equipment, and particularly to a physical operation examination and training device for coal mine hoists. Background Art

[0002] There are many drawbacks in the traditional training and assessment methods for coal mine hoist operators. In the past, when training operators, it mostly relied on theoretical explanations and simple model demonstrations, and it was difficult for trainees to truly experience the operation of the hoist under actual complex working conditions. In the assessment link, due to the lack of real-scene simulation, it was impossible to accurately evaluate the trainees' ability to handle emergencies.

[0003] In order for trainees to better master the operation skills of coal mine hoists, an examination and training device that can simulate the real operating state is needed. In the past, when simulating the operation of a hoist, the load was often changed by adding or removing counterweight objects on the lifting platform, which was cumbersome to operate and difficult to quickly and flexibly simulate complex and changeable actual working conditions. For example, when simulating the situation where the running resistance of a coal mine hoist changes instantaneously due to the dropping of goods or other accidents during operation, the traditional method responds slowly and cannot meet the needs of efficient training and assessment. Summary of the Invention

[0004] The purpose of the present invention is to provide a physical operation examination and training device for coal mine hoists, which solves the problems of complex operation and slow response in changing the load of the simulation platform of the traditional device.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A physical operation examination and training device for coal mine hoists, including a simulation platform. A lifting frame is fixedly connected to the middle of the simulation platform. A placement plate is vertically slidably connected inside the lifting frame. Two groups of vertically arranged conveyor belts are symmetrically and drivably connected to both sides of the lifting frame. A load adjustment block is fixedly connected between the two groups of conveyor belts. The running resistance of the conveyor belt is variable, so that the moving resistance applied by the load adjustment block to the placement plate can be increased or decreased.

[0006] Preferably, two groups of rotating shafts are rotatably connected to the lifting frame. Two groups of rollers are fixedly connected to both groups of rotating shafts. The two groups of conveyor belts are respectively driven by the two groups of rollers on the same side. When the rotational resistance of the rotating shaft increases, the upward movement resistance of the placement plate increases.

[0007] Preferably, a first motor is fixedly connected to the bottom of the simulation platform. The output end of the first motor is connected to a transmission shaft through a magnetic coupling. Two mutually meshing gears are rotatably connected to the bottom of the simulation platform. The transmission shaft is fixedly connected to any one of the gears;

[0008] Both of the two gears are fixedly connected with driving wheels, and both of the two rotating shafts symmetrically arranged at the lower part of the lifting frame are fixedly connected with driven wheels. A belt is drivingly connected between each of the two driving wheels and each of the two driven wheels.

[0009] Preferably, an electric telescopic rod is fixedly connected to the bottom of the simulation platform. The output end of the electric telescopic rod is fixedly connected with a mounting plate. A straight telescopic rod is fixedly connected to the mounting plate. A friction block is fixedly connected to the end of the straight telescopic rod. A spring is fixedly connected between the mounting plate and the friction block. When the electric telescopic rod extends, it can drive the friction block to abut against the transmission shaft, thereby increasing the upward movement resistance of the placing plate.

[0010] Preferably, a sliding switch for controlling the rotation speed of the first motor is fixedly connected to the bottom of the simulation platform. The sliding piece of the sliding switch is fixedly connected to the mounting plate. When the electric telescopic rod shortens, the friction block moves away from the transmission shaft, and the sliding piece slides on the sliding switch, so that the first motor starts to rotate from a standstill. When the sliding piece continues to slide, the rotation speed of the first motor increases, so that the pressure applied by the load adjustment block to the placing plate decreases until it disappears.

[0011] Preferably, it further includes a power platform. A second motor is fixedly connected to the power platform. The output end of the second motor is fixedly connected with two storage rollers. A pulling rope is wound and connected to each of the two storage rollers. The end of the pulling rope is fixedly connected to the placing plate.

[0012] Preferably, two guide wheels are rotatably connected to the top of the simulation platform. The two pulling ropes are respectively driven by the two guide wheels.

[0013] Preferably, an acoustic-optic generator is fixedly connected to the power platform.

[0014] Preferably, laminated glass is fixedly connected to the power platform. A smoke generating nozzle is arranged at the bottom of the laminated glass.

[0015] Preferably, it further includes an operation console for controlling the second motor.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] By controlling the running resistance of the conveyor belt, the present invention can change the load condition of the placement plate, thereby simulating the running state of a coal mine hoist in an actual scenario. There is no need to place redundant counterweight objects on the placement plate, improving the usability of the device. Moreover, by changing the running resistance of the conveyor belt, the load condition of the placement plate can be easily changed, and the load on the placement plate can also be quickly increased or decreased during the exam simulation, simulating the situation where the running resistance of the placement plate increases due to the falling of goods on the coal mine hoist or other accidents, testing the emergency response ability of trainees. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure at the simulation platform of the present invention;

[0020] Figure 3 is a schematic diagram of the structure at the placement plate of the present invention;

[0021] Figure 4 is a schematic diagram of the structure at the first motor of the present invention;

[0022] Figure 5 is a schematic diagram of the structure at the transmission shaft of the present invention;

[0023] Figure 6 is a schematic diagram of the structure of the power platform of the present invention;

[0024] Figure 7 is a schematic diagram of the structure at the smoke generating nozzle of the present invention.

[0025] In the figure: 100, simulation platform; 110, lifting frame; 120, placement plate; 121, pulling rope; 130, rotating shaft; 140, roller; 150, conveyor belt; 160, load adjustment block; 200, first motor; 210, magnetic coupling; 211, transmission shaft; 220, gear; 230, belt; 240, driving wheel; 250, driven wheel; 300, electric telescopic rod; 310, mounting plate; 320, sliding switch; 330, straight telescopic rod; 340, friction block; 350, spring; 400, power platform; 410, second motor; 420, storage roller; 430, sound and light generator; 440, laminated glass; 450, smoke generating nozzle; 460, guide wheel; 500, control console. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Refer to Figures 1-3 The technical solution provided in this embodiment: a physical operation training and examination device for a coal mine hoist, including a simulation platform 100. A hoisting frame 110 is fixedly connected to the middle of the simulation platform 100. A placement plate 120 is vertically slidably connected inside the hoisting frame 110. Two groups of vertically arranged conveyor belts 150 are symmetrically and drivingly connected to both sides of the hoisting frame 110. A load adjustment block 160 is fixedly connected between the two groups of conveyor belts 150. The running resistance of the conveyor belt 150 is variable, so that the moving resistance applied by the load adjustment block 160 to the placement plate 120 can be increased or decreased.

[0028] The placement plate 120 simulates the lifting platform of a coal mine hoist. The load adjustment block 160 is placed on the upper part of the placement plate 120. The load adjustment block 160 can be driven to move upward by the two symmetrically arranged conveyor belts 150 and the placement plate 120. When the driving resistance of the conveyor belt 150 disappears, the upward movement resistance of the placement plate 120 is equal to the gravity of the load adjustment block 160. When the running resistance of the conveyor belt 150 increases, the upward movement resistance of the placement plate 120 is equal to the gravity of the load adjustment block 160 and the running resistance of the conveyor belt 150. When the conveyor belt 150 runs and drives the load adjustment block 160 to move upward, the resistance applied by the load adjustment block 160 to the placement plate 120 decreases, and as the upward movement speed of the conveyor belt 150 driving the load adjustment block 160 increases, the pressure applied by the load adjustment block 160 to the placement plate 120 gradually decreases until it disappears;

[0029] By controlling the running resistance of the conveyor belt 150, the load condition of the placement plate 120 can be changed, so as to simulate the running state of a coal mine hoist in an actual scenario. There is no need to place redundant counterweight objects on the placement plate 120, which improves the usability of the device. And by changing the running resistance of the conveyor belt 150, the load-bearing condition of the placement plate 120 can be quickly changed, and the load on the placement plate 120 can also be quickly increased or decreased during the examination simulation, simulating the situation where the running resistance of the placement plate 120 increases due to the falling of goods on the coal mine hoist or other accidents, and testing the emergency response ability of trainees.

[0030] Refer to Figure 3, Two groups of rotating shafts 130 are rotatably connected to the lifting frame 110. Two rollers 140 are fixedly connected to each of the two groups of rotating shafts 130. Two conveyor belts 150 are respectively driven by the two rollers 140 on the same side. When the rotational resistance of the rotating shaft 130 increases, the upward movement resistance of the placement plate 120 increases.

[0031] The roller 140 is fixedly connected to the rotating shaft 130. When the rotating shaft 130 rotates, the conveyor belt 150 moves, so that the load adjustment block 160 can move up and down. When the rotating shaft 130 rotates without resistance, the upward movement resistance exerted by the load adjustment block 160 on the placement plate 120 is equal to its gravity. When the rotational resistance of the rotating shaft 130 increases, the upward movement resistance of the placement plate 120 is the sum of the rotational resistance of the rotating shaft 130 and the gravity of the load adjustment block 160.

[0032] Refer to Figure 4 , A first motor 200 is fixedly connected to the bottom of the simulation platform 100. The output end of the first motor 200 is connected to a transmission shaft 211 through a magnetic coupler 210. Two mutually meshing gears 220 are rotatably connected to the bottom of the simulation platform 100. The transmission shaft 211 is fixedly connected to any one of the gears 220; Two driving wheels 240 are fixedly connected to each of the two gears 220. Two driven wheels 250 are fixedly connected to the two rotating shafts 130 symmetrically arranged at the lower part of the lifting frame 110. A belt 230 is drivingly connected between the two driving wheels 240 and the two driven wheels 250 respectively.

[0033] When the first motor 200 is started, it drives the transmission shaft 211 to rotate through the magnetic coupler 210. The transmission shaft 211 drives one of the gears 220 to rotate, so that the other gear 220 is driven to rotate in the reverse direction, and then is transmitted to the rotating shaft 130 through the driving wheel 240, the belt 230 and the driven wheel 250, so that the transmission of the conveyor belt 150 is assisted. During the upward movement of the placement plate 120, the conveyor belt 150 is assisted to drive the load adjustment block 160 to move upward. If the upward movement speed of the load adjustment block 160 is greater than that of the placement plate 120, the gravity of the load adjustment block 160 acting on the placement plate 120 disappears. During the downward movement of the placement plate 120, if the first motor 200 drives the conveyor belt 150 to drive the load adjustment block 160 to move downward at a speed higher than the downward movement speed of the placement plate 120, the load on the placement plate 120 increases at this time.

[0034] Refer to Figure 4 , An electric telescopic rod 300 is fixedly connected to the bottom of the simulation platform 100. The output end of the electric telescopic rod 300 is fixedly connected to a mounting plate 310. A straight telescopic rod 330 is fixedly connected to the mounting plate 310. The end of the straight telescopic rod 330 is fixedly connected to a friction block 340. A spring 350 is fixedly connected between the mounting plate 310 and the friction block 340. When the electric telescopic rod 300 extends, it can drive the friction block 340 to abut against the transmission shaft 211, thereby increasing the upward movement resistance of the placement plate 120.

[0035] During the upward movement of the placement plate 120, when the electric telescopic rod 300 extends, it can drive the friction block 340 to abut against the transmission shaft 211. At this time, the magnetic coupling 210 is powered off, and the rotation of the transmission shaft 211 is not interfered by the first motor 200. When the friction block 340 abuts against the transmission shaft 211, the rotation of the transmission shaft 211 is subject to frictional resistance. As the extension length of the electric telescopic rod 300 increases, the length of the straight telescopic rod 330 shortens, and the spring 350 is compressed. At this time, the resistance applied by the friction block 340 to the transmission shaft 211 increases, thereby increasing the upward movement resistance of the placement plate 120. When the placement plate 120 descends, if the rotational resistance of the transmission shaft 211 increases, the downward movement resistance of the load adjustment block 160 increases, so that the downward load of the placement plate 120 decreases.

[0036] Refer to Figure 4 and Figure 5 As shown in and, a sliding switch 320 for controlling the rotation speed of the first motor 200 is fixedly connected to the bottom of the simulation platform 100. The sliding piece of the sliding switch 320 is fixedly connected to the mounting plate 310. When the electric telescopic rod 300 shortens, the friction block 340 moves away from the transmission shaft 211, and the sliding piece slides on the sliding switch 320, so that the first motor 200 starts to rotate from a standstill. When the sliding piece continues to slide, the rotation speed of the first motor 200 increases, so that the pressure applied by the load adjustment block 160 to the placement plate 120 decreases until it disappears.

[0037] During the upward movement of the placement plate 120, when the electric telescopic rod 300 shortens, the friction block 340 moves away from the transmission shaft 211. At this time, the rotation of the transmission shaft 211 is no longer blocked. At the same time, the sliding piece on the mounting plate 310 contacts the resistance wire of the sliding switch 320. At this time, the first motor 200 is powered on, and the control system controls the magnetic coupling 210 to be powered on, so that the first motor 200 can drive the transmission shaft 211 to rotate through the magnetic coupling 210, making the conveyor belt 150 run, providing upward assistance for the load adjustment block 160, and reducing the upward load of the placement plate 120. When the placement plate 120 moves downward, the electric telescopic rod 300 shortens, and at the same time, the control system controls the rotation direction of the first motor 200 to change. At this time, the first motor 200 drives the conveyor belt 150 to run, providing downward assistance for the load adjustment block 160, so that the load of the placement plate 120 increases in the downward movement state.

[0038] Refer to Figure 1 and Figure 6 As shown in and, it further includes a power platform 400. A second motor 410 is fixedly connected to the power platform 400. Two storage rollers 420 are fixedly connected to the output end of the second motor 410. Pulling ropes 121 are wound and connected to both of the two storage rollers 420. The ends of the pulling ropes 121 are fixedly connected to the placement plate 120.

[0039] The second motor 410 drives the storage roller 420 to rotate, thereby storing or releasing the pull rope 121, so that the placement plate 120 can be lifted or lowered.

[0040] Refer to Figures 1-3 , two guide wheels 460 are rotatably connected to the top of the simulation platform 100, and the two pull ropes 121 are respectively transmitted to the two guide wheels 460.

[0041] The setting of the guide wheel 460 changes the pulling force exerted by the pull rope 121 on the placement plate 120 into a vertical direction.

[0042] Refer to Figure 6 , an acoustic-optic generator 430 is fixedly connected to the power platform 400.

[0043] The acoustic-optic generator 430 can emit the environmental noise of the mine, simulate the real working environment, and can also emit light for prompting according to the change of the load on the placement plate 120.

[0044] Refer to Figure 6 and Figure 7 , a laminated glass 440 is fixedly connected to the power platform 400, and a smoke generating nozzle 450 is arranged at the bottom of the laminated glass 440.

[0045] The smoke generating nozzle 450 can spray water vapor or carbon dioxide to simulate the influence of soot on the vision in the actual environment. It can also fill the laminated glass 440 with particulate matter and replace the smoke generating nozzle 450 with a paint nozzle, so that the particulate matter is blown to simulate the blockage of vision by dust.

[0046] Refer to Figure 1 , it further includes an operating console 500, and the operating console 500 is used to control the second motor 410.

[0047] The trainee controls the operation of including but not limited to the second motor 410 and the operation of the rest of the coal mine hoist through the operating console 500.

[0048] Working principle: In the working process of the physical operation training device for coal mine hoists, first, the trainee starts the second motor 410 through the operating console 500. The second motor 410 drives the storage roller 420 to rotate, thereby releasing or storing the pull rope 121. Through the guiding action of the guide wheel 460, the pull rope 121 vertically pulls or releases the placement plate 120 to simulate the lifting and lowering operation of the coal mine hoist. At the same time, the acoustic-optic generator 430 emits the environmental noise of the mine to provide an immersive operation experience for the trainee;

[0049] During the lifting process of the placement plate 120, the examiner or teacher can simulate different working conditions by controlling the extension or retraction of the electric telescopic rod 300. When it is necessary to increase the upward movement resistance of the placement plate 120, the examiner or teacher controls the electric telescopic rod 300 to extend, driving the friction block 340 to abut against the transmission shaft 211, and increasing the frictional resistance through the compression of the spring 350. At this time, the magnetic coupling 210 is powered off, and the rotation of the transmission shaft 211 is only affected by the resistance of the friction block 340. This design can simulate the situation of increased resistance encountered by a coal mine hoist during cargo lifting, testing the emergency response ability of trainees;

[0050] When it is necessary to reduce the upward movement load of the placement plate 120, the examiner or teacher controls the electric telescopic rod 300 to retract, and the friction block 340 moves away from the transmission shaft 211. At the same time, the sliding piece slides on the sliding switch 320, enabling the first motor 200 to be powered on and driving the transmission shaft 211 to rotate through the magnetic coupling 210. The rotation of the transmission shaft 211 provides operating power for the conveyor belt 150 through the transmission of the gear 220, the driving wheel 240, the belt 230, and the driven wheel 250, thereby reducing the upward movement load of the placement plate 120. During this process, trainees can observe the lifting speed and load change of the placement plate 120, and try to adjust (although the actual adjustment is controlled by the examiner or teacher) through the console 500 to adapt to different working conditions, so as to achieve the purpose of simulation training;

[0051] In addition, the smoke generating nozzle 450 can spray water vapor or carbon dioxide to simulate the soot environment in the mine. During the operation process, trainees need to judge the impact of soot on the field of vision by observing the sight in the laminated glass 440 and take corresponding countermeasures. This design can further improve the emergency handling ability and practical operation skills of trainees;

[0052] In summary, the physical operation examination and training device for a coal mine hoist of the present invention simulates the actual operating conditions and emergency situations of a coal mine hoist, and the examiner or teacher controls the expansion and contraction of the electric telescopic rod 300 to simulate different working conditions, providing a comprehensive and real operating environment for trainees, which helps to improve the operating skills and emergency handling ability of trainees.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine hoist physical operation test and training device, comprising a simulation platform (100), characterized in that: A lifting frame (110) is fixedly connected to the middle of the simulation platform (100), a placement plate (120) is vertically slidably connected inside the lifting frame (110), two groups of vertically arranged conveyor belts (150) are symmetrically transmission-connected on both sides of the lifting frame (110), a load adjustment block (160) is fixedly connected between the two groups of conveyor belts (150), and the running resistance of the conveyor belt (150) is variable, so that the movement resistance applied by the load adjustment block (160) to the placement plate (120) can be increased or decreased.

2. The coal mine hoist physical operation test and training device according to claim 1 is characterized in that: The lifting frame (110) is rotatably connected to two groups of rotating shafts (130), and the two groups of rotating shafts (130) are fixedly connected to rollers (140). The two groups of conveyor belts (150) are respectively driven by the two groups of rotating rollers (140) on the same side. When the rotation resistance of the rotating shaft (130) increases, the upward movement resistance of the placement plate (120) increases.

3. The coal mine hoist physical operation test and training device according to claim 2 is characterized in that: A first motor (200) is fixedly connected to the bottom of the simulation platform (100); an output end of the first motor (200) is connected to a transmission shaft (211) via a magnetic coupler (210); two mutually meshing gears (220) are rotatably connected to the bottom of the simulation platform (100); and the transmission shaft (211) is fixedly connected to any one of the gears (220); The two gears (220) are both fixedly connected with a driving wheel (240), the two rotating shafts (130) symmetrically arranged at the lower part of the lifting frame (110) are both fixedly connected with a driven wheel (250), and the two driving wheels (240) are respectively connected to the two driven wheels (250) by belts (230).

4. The coal mine hoist physical operation test and training device according to claim 3 is characterized in that: The bottom of the simulation platform (100) is fixedly connected to an electric telescopic rod (300), the output end of the electric telescopic rod (300) is fixedly connected to a mounting plate (310), a straight telescopic rod (330) is fixedly connected to the mounting plate (310), the end of the straight telescopic rod (330) is fixedly connected to a friction block (340), a spring (350) is fixedly connected between the mounting plate (310) and the friction block (340), and when the electric telescopic rod (300) is extended, the friction block (340) can be driven to abut against the transmission shaft (211), thereby increasing the upward movement resistance of the placement plate (120).

5. The coal mine hoist physical operation test and training device according to claim 4 is characterized in that: A sliding switch (320) for controlling the rotation speed of the first motor (200) is fixedly connected to the bottom of the simulation platform (100); a sliding plate of the sliding switch (320) is fixedly connected to the mounting plate (310); when the electric telescopic rod (300) is shortened, the friction block (340) moves away from the transmission shaft (211), and the sliding plate slides on the sliding switch (320), so that the first motor (200) starts to rotate from a standstill; and when the sliding plate continues to slide, the rotation speed of the first motor (200) increases, so that the pressure applied by the load adjustment block (160) to the placement plate (120) is reduced until it disappears.

6. The coal mine hoist physical operation test and training device according to claim 5, characterized in that: It also comprises a power platform (400), to which a second motor (410) is fixedly connected, and an output end of the second motor (410) is fixedly connected to two storage rollers (420), and a pull rope (121) is wound around the two storage rollers (420), and the end of the pull rope (121) is fixedly connected to the placement plate (120).

7. The coal mine hoist physical operation test and training device according to claim 6, characterized in that: The top of the simulation platform (100) is rotatably connected to two guide wheels (460), and the two pull ropes (121) are respectively driven by the two guide wheels (460).

8. The coal mine hoist physical operation test and training device according to claim 7, characterized in that: The power platform (400) is fixedly connected to an acousto-optic generator (430).

9. The coal mine hoist physical operation test and training device according to claim 8, characterized in that: The power platform (400) is fixedly connected to a laminated glass (440), and a smoke generating nozzle (450) is arranged at the bottom of the laminated glass (440).

10. The coal mine hoist physical operation test and training device according to claim 9, characterized in that: It also includes a control console (500), wherein the control console (500) is used to control the second motor (410).

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