An automatic car stopping device in a tank

Abstract

The application provides an automatic car stopping device in a tank, which is used for limiting the movement of a mine car and comprises a limiting mechanism and a transducing mechanism; the limiting mechanism comprises a stopper, which has a car locking position capable of limiting the movement of the mine car and a car passing position for releasing the limitation on the movement of the mine car, and the transducing mechanism comprises a shell and a hydraulic energy storage structure connected with the shell. By using the above structure, when the mine car enters the cage, the speed of the mine car can be slowed down, and the hydraulic energy can be stored for subsequent reuse; when the speed is slowed down to a certain extent, the mine car is blocked.

Description

Technical Field

[0001] The invention relates to the technical field of mining devices, in particular to an automatic vehicle blocking device in a tank. Background Art

[0002] In a mine hoisting system, mine cars enter the cage by sliding down a ramp. The car first slides down the ramp, reaches a certain speed, and then enters the cage via a rocking platform. If the speed is too high, the front wheels can easily hit the cage's restraining structure, causing rebound and even ejection. If the speed is too slow, the car cannot enter the cage smoothly, requiring multiple workers to assist in pushing the car into the cage, seriously affecting operational efficiency.

[0003] Currently, there is a lack of effective deceleration and blocking devices for mine cars entering the cage. To prevent the mine car from bouncing out of the cage, the traditional practice is for the operator to control the blocking device by stepping on a pedal just before the mine car rebounds, thereby preventing the mine car from moving backward. However, this method relies entirely on manual judgment and operation, and suffers from problems such as delayed response and unreliable operation. If it fails to operate in a timely manner, it can easily cause harm to on-site workers. In addition, when braking the mine car, the method of multiple people using wooden boards to press down on the mine car wheels is still commonly used to slow it down. This is not only labor-intensive but also unsafe and does not meet the requirements of modern mine safety production.

[0004] While existing vehicle-blocking devices can provide a certain degree of blocking, they are mostly used only to restrict the position of mine cars and lack active deceleration. Consequently, the blocking mechanism has a short lifespan when subjected to long-term high-speed impacts from mine cars. Furthermore, these devices lack a high degree of automation, making it difficult to quickly respond to the actual operating status of the mine car. Therefore, a new device that can automatically decelerate and reliably block the mine car during tank entry is urgently needed to improve the safety and operational efficiency of mine transportation systems. Summary of the Invention

[0005] In order to overcome the existing technical problems, the present invention provides an automatic vehicle blocking device in a tank which can automatically slow down the speed of a mine car entering a cage and block it.

[0006] The present invention adopts the following technical solutions.

[0007] An automatic vehicle blocking device in a tank, which is used to limit the movement of a mining vehicle, and includes a limiting mechanism and an energy conversion mechanism;

[0008] The limiting mechanism includes a block having a locking position capable of limiting the movement of the mine car and a traffic-passing position for releasing the restriction on the movement of the mine car. The block is connected to a block driving member capable of driving the block to move back and forth between the blocking position and the traffic-passing position.

[0009] The transducer mechanism includes a shell and a hydraulic energy storage structure connected to the shell. An eccentrically arranged rotor is rotatably connected in the shell. The rotor can be connected to the mine car through a friction transmission assembly. A plurality of radially extending mounting grooves are evenly distributed on the circumferential wall of the rotor. A sliding vane is slidably connected in the mounting groove. The end of the sliding vane close to the rotor axis is connected to a first elastic member, and the end of the sliding vane facing away from the rotor axis is sealed and slidably fitted with the inner wall of the shell.

[0010] As a further improvement of the present invention, the housing is provided with a first liquid hole and a second liquid hole;

[0011] When the rotor rotates in a first direction, the liquid in the housing can be discharged through the first liquid hole;

[0012] When the rotor rotates in the second direction, the liquid in the housing can be discharged through the second liquid hole;

[0013] The hydraulic energy storage structure includes a first pressure storage component and a second pressure storage component;

[0014] The first pressure storage assembly is connected to the first liquid hole through a first main liquid pipe and is connected to the second liquid hole through a first branch liquid pipe. The first main liquid pipe is provided with a first main pipe control valve, and the first branch liquid pipe is provided with a first branch pipe control valve.

[0015] The second pressure storage assembly is connected to the first liquid hole through a second main liquid pipe and to the second liquid hole through a second branch liquid pipe. The second main liquid pipe is provided with a second main pipe control valve, and the second branch liquid pipe is provided with a second branch pipe control valve.

[0016] As a further improvement of the present invention, the first pressure storage assembly and the second pressure storage assembly both include a tank body, a piston disposed in the tank body and sealingly and slidingly connected to the tank body, and a second elastic member connected to the piston.

[0017] As a further improvement of the present invention, a speed-changing transmission assembly is connected between the friction transmission assembly and the rotor;

[0018] The speed change transmission assembly includes a first friction wheel and a second friction wheel, and a transmission belt is connected between the first friction wheel and the second friction wheel;

[0019] The first friction wheel includes a first fixed cone, a first movable cone that can move closer to or farther from the first fixed cone, and a return spring connected to the first movable cone. The ends of the first fixed cone and the first movable cone that are close to each other are tips that cooperate with the transmission belt.

[0020] The second friction wheel includes a second fixed cone, a second movable cone that can move closer to or farther from the second fixed cone, and a cone driving member connected to the second movable cone. The ends of the second fixed cone and the second movable cone close to each other are tips that cooperate with the transmission belt.

[0021] As a further improvement of the present invention, the device further includes an arcuate groove arranged along the motion trajectory of the mine car, a slider slidably connected to the arcuate groove, and a first pushing assembly and a second pushing assembly acting on the slider, the arcuate groove having a first end point, a midpoint, and a second end point arranged in sequence, the midpoint of the arcuate groove being its highest point, and the slider being connected to the friction transmission assembly;

[0022] When the slider is located at the midpoint of the arc groove, the friction transmission assembly is frictionally connected to the mine car; when the slider is located at the end point of the arc groove, the friction transmission assembly is disengaged from the mine car;

[0023] The first pushing assembly is capable of driving the slider to move from the first end point of the arc-shaped slot to the midpoint of the arc-shaped slot, and restricting the slider from moving from the midpoint of the arc-shaped slot toward the first end point of the arc-shaped slot;

[0024] The second pushing assembly can drive the slider to move from the second end point of the arc-shaped slot to the midpoint of the arc-shaped slot, and restrict the slider from moving from the midpoint of the arc-shaped slot toward the second end point of the arc-shaped slot.

[0025] As a further improvement of the present invention, a V-shaped friction strip is provided on the mine car, and the friction strip extends along the movement track of the mine car;

[0026] The friction transmission assembly includes a conical first friction disc and a second friction disc. The ends of the first friction disc and the second friction disc close to each other are pointed ends. The first friction disc and the second friction disc are respectively connected with elastic members.

[0027] The beneficial effects of the present invention are:

[0028] 1. When a mine car enters the cage, the friction drive assembly connects to the car's transmission, driving the rotor to rotate and store hydraulic energy. This not only slows the car down but also stores hydraulic energy for later reuse. When the car slows down to a certain degree, the block driver drives the block to move to the blocking position, stopping the car. This slowing-down-then-blocking approach significantly reduces the force exerted by the car against the block, extending the block's lifespan and storing hydraulic energy for subsequent starting.

[0029] 2. By controlling and opening different main control valves and branch control valves, the first pressure storage assembly and the second pressure storage assembly that store hydraulic energy can be discharged through different liquid holes, driving the friction transmission assembly to rotate in different directions, which can realize left-side cage entry and left-side exit, left-side cage entry and right-side exit, right-side cage entry and right-side exit, or right-side cage entry and left-side exit. When rotating, it can assist or even drive the mine car to start.

[0030] 3. The variable speed drive assembly adjusts the transmission ratio between the friction drive assembly and the rotor, and thus the torque. When the mine car enters the cage, the transmission ratio between the first and second friction wheels can be adjusted to the maximum, increasing the torque of the rotor's rotation, boosting hydraulic energy, and improving the deceleration effect. When the mine car leaves the cage, the hydraulic energy storage structure converts hydraulic energy into mechanical energy. At this time, the transmission ratio between the first and second friction wheels can be adjusted to the minimum. Since the first friction wheel and the friction drive assembly are located on the same axis, the torque of the friction drive assembly on the mine car's starting position can be increased, thereby facilitating the mine car's starting.

[0031] 4. During the process of the friction transmission assembly assisting the mine car in starting, when the mine car reaches a certain speed, the torque and rotational speed of the friction transmission assembly will decrease accordingly. When the mine car's speed exceeds the rotational speed of the friction transmission assembly, the friction transmission assembly will actually drag the mine car backward, reducing the mine car's starting speed. Therefore, by providing an arcuate groove, during the process of the mine car exiting the cage, when the hydraulic energy storage structure releases its stored hydraulic energy, the push assembly in the direction opposite to the exit is in a stopped position, restricting the slider from moving toward the endpoint in the direction opposite to the exit. The other push assembly is in an unlocked position, allowing the slider to move from the midpoint of the arcuate groove toward the endpoint in the direction of the exit. At this time, because the hydraulic energy stored in the hydraulic energy storage structure has not been fully released, the rotor, through the speed change transmission assembly, tends to rotate the first and second friction discs in the direction of the exit, thereby driving the slider in the direction opposite to the exit. However, due to the resistance of the slider by the first push assembly, the slider remains at the midpoint of the arcuate groove.

[0032] When the hydraulic energy stored in the hydraulic energy storage structure is fully released, the rotor no longer has the ability to drive the first and second friction discs toward the cage exit. Consequently, the first and second friction discs move with the mine car and leave the midpoint of the arc-shaped slot, sliding toward the end of the arc-shaped slot facing the cage exit. This disengages the first and second friction discs from the mine car, preventing drag. Once the mine car leaves the cage, the push assembly in the cage exit direction drives the slider from the end of the arc-shaped slot to its midpoint, awaiting the next mine car to enter, achieving fully automatic deceleration, blocking, and starting. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 It is a cross-sectional view of the structure of the present invention as a whole;

[0035] Figure 2 yes Figure 1 Cross-sectional view along the AA direction;

[0036] Figure 3 It is a structural cross-sectional view of the energy conversion mechanism of the present invention;

[0037] Figure 4 yes Figure 1 The structural principle diagram along the B direction;

[0038] Figure 5 yes Figure 4 Structural principle diagram of the friction transmission assembly after sliding toward the second end point;

[0039] Figure 6 yes Figure 1 Enlarged view of the partial image C in the middle.

[0040] Description of reference numerals:

[0041] 1- mine car, 2- limiting mechanism, 21- stopper, 22- stopper driving member, 3- energy conversion mechanism, 31- housing, 311- rotor, 312- mounting groove, 313- slide, 314- first elastic member, 315- first liquid hole, 316- second liquid hole, 32- hydraulic energy storage structure, 321- first pressure storage assembly, 3211- first main liquid pipe, 3212- first branch liquid pipe, 3213- first main control valve, 3214- first branch control valve, 322- second pressure storage assembly, 3221- second main liquid pipe, 3222- second branch liquid pipe, 3223- second main control valve, 3224- second branch control valve, 323- tank, 324- piston, 32 5-second elastic member, 4-friction transmission assembly, 41-first friction disc, 42-second friction disc, 43-elastic member, 5-speed transmission assembly, 51-first friction wheel, 511-first fixed cone, 512-first moving cone, 513-return spring, 514-first mounting shaft, 52-second friction wheel, 521-second fixed cone, 522-second moving cone, 523-cone driving member, 524-second mounting shaft, 53-conveyor belt, 6-arc groove, 61-slider, 62-first pushing assembly, 621-stop block, 622-stop block driving member, 63-second pushing assembly, 64-first endpoint, 65-midpoint, 66-second endpoint, 7-friction strip. DETAILED DESCRIPTION

[0042] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. In order to better illustrate this embodiment, certain components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual size of the product.

[0043] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.

[0044] Reference Figures 1 to 6 It can be seen that an automatic vehicle blocking device in a tank is used to limit the movement of a mining vehicle 1. The device includes a limiting mechanism 2 and a transducer mechanism 3;

[0045] The limiting mechanism 2 includes a stopper 21, which has a locking position capable of limiting the movement of the mine car 1 and a traffic-passing position for releasing the restriction on the movement of the mine car 1. The stopper 21 is connected to a stopper driving member 22, which can drive the stopper 21 to move back and forth between the blocking position and the traffic-passing position.

[0046] The transducer mechanism 3 includes a shell 31 and a hydraulic energy storage structure 32 connected to the shell 31. An eccentrically arranged rotor 311 is rotatably connected in the shell 31. The rotor 311 can be connected to the mine car 1 through a friction transmission component 4. A plurality of radially extending mounting grooves 312 are evenly distributed on the peripheral wall of the rotor 311. A slide 313 is slidably connected in the mounting groove 312. The end of the slide 313 close to the axis of the rotor 311 is connected to a first elastic member 314. The end of the slide 313 facing away from the axis of the rotor 311 is sealed and slidably fitted with the inner wall of the shell 31.

[0047] As a specific embodiment of the present invention, there are two groups of blocks 21, located on the left and right sides of the blocking position of the mine car 1, so that no matter which side the mine car 1 enters the cage, it can be blocked by the blocks 21, achieving the blocking effect. When the mine car 1 enters the cage, the friction transmission assembly 4 and the mine car 1 are connected by friction, thereby driving the rotor 311 to rotate to store hydraulic energy, and the hydraulic energy storage structure 32 can release its stored hydraulic energy. This technical solution not only slows down the speed of the mine car 1, but the hydraulic energy storage structure 32 can also store hydraulic energy for subsequent reuse. After the mine car 1 slows down to a certain extent, the block driver 22 finally drives the block 21 to move to the blocking position, blocking the mine car 1. Under the technical solution of first slowing down and then blocking, the force of the mine car 1 hitting the block 21 can be greatly reduced, and the life of the block 21 can be increased. In addition, the hydraulic energy storage structure 32 can subsequently release its stored hydraulic energy for use in starting, reducing the power required to pull out the mine car 1 and reducing the manual or mechanical load.

[0048] In the present embodiment, the block driving member 22 is a rotating electromagnet. Of course, in other embodiments, the block driving member 22 can also be a swing hydraulic cylinder or a swing air cylinder.

[0049] As a further improvement of the present invention, the housing 31 is provided with a first liquid hole 315 and a second liquid hole 316;

[0050] When the rotor 311 rotates in the first direction, the liquid in the housing 31 can be discharged through the first liquid hole 315;

[0051] When the rotor 311 rotates in the second direction, the liquid in the housing 31 can be discharged through the second liquid hole 316;

[0052] The hydraulic energy storage structure 32 includes a first pressure storage component 321 and a second pressure storage component 322;

[0053] The first pressure storage assembly 321 is connected to the first liquid hole 315 via a first main liquid pipe 3211 and to the second liquid hole 316 via a first branch liquid pipe 3212. The first main liquid pipe 3211 is provided with a first main pipe control valve 3213, and the first branch liquid pipe 3212 is provided with a first branch pipe control valve 3214.

[0054] The second pressure storage assembly 322 is connected to the first liquid hole 315 through a second main liquid pipe 3221 and to the second liquid hole 316 through a second branch liquid pipe 3222 . The second main liquid pipe 3221 is provided with a second main control valve 3223 , and the second branch liquid pipe 3222 is provided with a second branch control valve 3224 .

[0055] As a specific embodiment of the present invention, the connection line between the axis of the housing 31 and the axis of the rotor 311 is taken as the symmetry line, and the first liquid holes 315 and the second liquid holes 316 are symmetrically distributed along the symmetry line.

[0056] The direction of entry or exit of the mine car 1 may vary each time. However, in the technical solution of the present invention, due to the configuration of the friction transmission assembly 4, the first pressure accumulator assembly 321, and the second pressure accumulator assembly 322, even if the direction of entry is different each time, the deceleration effect can still be achieved. This is because whether the mine car 1 enters from the left or the right, it can drive the rotor 311 to rotate, thereby pressurizing the liquid in the first pressure accumulator assembly 321 or the second pressure accumulator assembly 322. Since the direction of exiting the cage is uncertain whether it is the same as or opposite to the direction of entry, if hydraulic energy is released directly, the direction of power provided can only be the opposite of the direction of entry. For example, if the mine car enters the cage from the left, the direction of entry is right, and the direction of power provided is left. Therefore, hydraulic energy can be directly released when entering the cage from the left or exiting from the left. Therefore, by adjusting the start and stop of different main or branch control valves according to the direction of exit from the cage, different pipelines can be connected, providing starting power to the vehicle body in different directions, which helps reduce the labor intensity of the pusher or the torque of the pusher during starting, thereby extending the life of the machine.

[0057] It should be noted that to form a complete pipeline line, the first main pipe control valve 3213 and the second branch pipe control valve 3224 are grouped together, and the second main pipe control valve 3223 and the first branch pipe control valve 3214 are grouped together. The control valves within a group are all started and stopped synchronously. When the mine car 1 enters and leaves the cage on different sides, this group of control valves is closed and the other group of solenoid valves is opened. When the mine car 1 enters and leaves the cage on the same side, the control valves remain unchanged. At this point, it should be noted that the reason why the mine car 1 can be driven to start and leave the cage while maintaining the control of the control valves is that the block 21 moves to the traffic-free position. This technical solution allows the mine car to enter the cage from the left and exit from the left, or enter the cage from the left and exit from the right, or enter the cage from the right and exit from the right, or enter the cage from the right and exit from the left.

[0058] As a further improvement of the present invention, the first pressure accumulator assembly 321 and the second pressure accumulator assembly 322 each include a tank body 323, a piston 324 disposed within and in sealing and sliding connection with the tank body 323, and a second elastic member 325 connected to the piston 324. By compressing the second elastic member 325, the torque required to rotate the rotor 311 is increasingly increased, thereby increasing the resistance of the friction transmission assembly 4 to the mining car 1, thereby improving the deceleration effect.

[0059] In this embodiment, as shown in the attached Figure 3 As shown, when the rotor 311 rotates in the clockwise direction, the hydraulic oil in the tank body 323 of the second pressure storage assembly 322 enters the housing 31 through the second liquid hole 316, and then, driven by the rotor 311 and the slide 313, is discharged through the first liquid hole 315 and enters the tank body 323 of the first pressure storage assembly 321, increasing the compression amount of the second elastic member 325 of the first pressure storage assembly 321, thereby realizing the storage of hydraulic energy.

[0060] On the contrary, when the rotor 311 rotates counterclockwise, the hydraulic oil in the tank body 323 of the first pressure storage assembly 321 enters the housing 31 through the first liquid hole 315, and then, driven by the rotor 311 and the slide 313, is discharged through the second liquid hole 316 and enters the tank body 323 of the second pressure storage assembly 322, thereby increasing the compression amount of the second elastic member 325 of the second pressure storage assembly 322 and realizing the storage of hydraulic energy.

[0061] As a further improvement of the present invention, a speed transmission assembly 5 is connected between the friction transmission assembly 4 and the rotor 311;

[0062] The speed change transmission assembly 5 includes a first friction wheel 51 and a second friction wheel 52 , and a transmission belt 53 is connected between the first friction wheel 51 and the second friction wheel 52 ;

[0063] The first friction wheel 51 includes a first fixed cone 511, a first movable cone 512 that can move closer to or farther from the first fixed cone 511, and a return spring 513 connected to the first movable cone 512. The ends of the first fixed cone 511 and the first movable cone 512 that are close to each other are tips that cooperate with the transmission belt 53.

[0064] The second friction wheel 52 includes a second fixed cone 521, a second movable cone 522 that can move closer to or farther away from the second fixed cone 521, and a cone driving member 523 connected to the second movable cone 522. The ends of the second fixed cone 521 and the second movable cone 522 that are close to each other are tips that cooperate with the transmission belt 53.

[0065] In this embodiment, the cone driving member 523 is an electric push rod.

[0066] More specifically, the first friction wheel 51 also includes a first mounting shaft 514, the first fixed cone 511 is integrally mounted on the first mounting shaft 514, and the first movable cone 512 is slidably mounted on the first mounting shaft 514; the second friction wheel 52 also includes a second mounting shaft 524, the second fixed cone 521 is integrally mounted on the second mounting shaft 524, and the second movable cone 522 is slidably mounted on the second mounting shaft 524.

[0067] The configuration of the speed-changing transmission assembly 5 can adjust the transmission ratio between the friction transmission assembly 4 and the rotor 311, thereby adjusting the torque. The principle behind adjusting the transmission ratio is that the first fixed cone 511, the first movable cone 512, the second fixed cone 521, and the second movable cone 522 are all cones, and the surfaces that mate with the transmission belt 53 are all inclined surfaces. Therefore, by adjusting the position of the second movable cone 522 on the second mounting shaft 524 via the cone driver 523, the inclined surface that mates with the transmission belt 53 can be adjusted. For example, if the cone driver 523 drives the tip of the second movable cone 522 away from the transmission belt 53, the diameter of the surface where the transmission belt 53 mates with the second movable cone 522 increases, thereby increasing the transmission ratio between the first friction wheel 51 and the second friction wheel 52.

[0068] When the mine car 1 enters the cage, the transmission ratio of the first friction wheel 51 and the second friction wheel 52 can be adjusted to the maximum to increase the rotation speed of the rotor 311, thereby improving the deceleration effect and the storage efficiency of the hydraulic energy.

[0069] When the mine car 1 leaves the cage, the block 21 moves to the traffic-passing position, and the hydraulic energy storage structure 32 converts the hydraulic energy into mechanical energy. At this time, the transmission ratio of the first friction wheel 51 and the second friction wheel 52 can be adjusted to the minimum. Since the first friction wheel 51 and the friction transmission component 4 are located on the first mounting shaft 514, the torque of the friction transmission component 4 on the mine car 1 when starting can be increased, thereby improving the effect of assisting the mine car 1 in starting.

[0070] As a further improvement of the present invention, the device further includes an arcuate groove 6 arranged along the motion trajectory of the mining car 1, a slider 61 slidably connected to the arcuate groove 6, and a first pushing assembly 62 and a second pushing assembly 63 acting on the slider 61. The arcuate groove 6 has a first end point 64, a midpoint 65 and a second end point 66 arranged in sequence. The midpoint 65 of the arcuate groove 6 is its highest point. The slider 61 is connected to the friction transmission assembly 4.

[0071] When the slider 61 is located at the midpoint 65 of the arc groove 6, the friction transmission assembly 4 is frictionally connected to the mine car 1; when the slider 61 is located at the end point of the arc groove 6, the friction transmission assembly 4 is disengaged from the mine car 1;

[0072] The first pushing assembly 62 is capable of driving the slider 61 to move from the first end point 64 of the arcuate slot 6 to the midpoint 65 of the arcuate slot 6 and restricting the slider 61 from moving from the midpoint 65 of the arcuate slot 6 toward the first end point 64 of the arcuate slot 6;

[0073] The second pushing assembly 63 can drive the slider 61 to move from the second end point 66 of the arcuate slot 6 to the midpoint 65 of the arcuate slot 6 , and restrict the slider 61 from moving from the midpoint 65 of the arcuate slot 6 toward the second end point 66 of the arcuate slot 6 .

[0074] During the process of the friction transmission component 4 assisting the mine car 1 to start, when the mine car 1 has a certain speed, the torque and speed of the friction transmission component 4 will be reduced accordingly due to the reduction of hydraulic energy. When the speed of the mine car 1 is greater than the rotation speed of the friction transmission component 4, the friction transmission component 4 will instead have the effect of dragging the mine car 1 backwards, reducing the starting speed of the mine car 1. In order to avoid the situation where the kinetic energy of the vehicle body is reabsorbed due to the reduction of the power of the friction transmission component 4, thereby causing drag. Therefore, an arc groove 6 is provided, as shown in the attached figure. Figure 4 As shown, during the process of the mine car exiting the cage to the right, when the hydraulic energy storage structure 32 releases its stored hydraulic energy, the first pushing assembly 62 is in the stopped position, restricting the slider 61 from moving from the midpoint 65 of the arcuate slot 6 toward the first end point 64 of the arcuate slot 6. The second pushing assembly 63 is in the unlocked position, allowing the slider 61 to move from the midpoint 65 of the arcuate slot 6 toward the second end point 66 of the arcuate slot 6. At this time, because the hydraulic energy stored in the hydraulic energy storage structure 32 has not been fully released, the rotor 311, through the speed change transmission assembly 5, causes the first friction disc 41 and the second friction disc 42 to rotate clockwise, thereby driving the slider 61 to move to the left. However, because the slider 61 is blocked by the first pushing assembly 62, the slider 62 remains at the midpoint 65 of the arcuate slot 6.

[0075] When the hydraulic energy stored in the hydraulic energy storage structure 32 is completely released, the rotor 311 no longer has the ability to drive the first friction disc 41 and the second friction disc 42 to rotate clockwise. Therefore, the first friction disc 41 and the second friction disc 42 move to the right with the mining car 1 and leave the midpoint 65 of the arc groove 6, thereby sliding toward the second end point 66 of the arc groove 6. Figure 5 As shown, the first friction disc 41 and the second friction disc 42 are disengaged from the mine car 1, preventing drag. When the mine car 1 leaves the cage, the second push assembly 63 drives the slider 61 from the second end point 66 of the arcuate groove 6 to the midpoint 6 of the arcuate groove 6, waiting for the next mine car 1 to enter, achieving fully automatic deceleration, blocking, and starting.

[0076] Specifically, the first pushing assembly 62 and the second pushing assembly 63 each include a stop block 621 and a stop block driver 622 connected to the stop block 621. The stop block 621 is connected to the slide rail slider assembly, so that the stop block 621 can be moved along the length of the slide rail slider assembly to a stop position or an unlocked position under the drive of the stop block driver 622. When the stop block 621 moves from the unlocked position to the stop position, it can drive the slider 61 from one end point of the arcuate groove 6 to the midpoint 65 of the arcuate groove 6, and restrict the slider 61 from moving from the midpoint 65 of the arcuate groove 6 toward one end point. When the stop block 621 moves to the unlocked position, the slider 61 can move from the midpoint 65 of the arcuate groove 6 to one end point, that is, the friction transmission assembly 4 can swing and detach from the mine car.

[0077] In this embodiment, the stop block driving member 622 is an electric push rod.

[0078] As a further improvement of the present invention, a V-shaped friction strip 7 is provided on the mine car 1, and the friction strip 7 extends along the movement trajectory of the mine car 1;

[0079] The friction transmission assembly 4 includes a conical first friction disc 41 and a second friction disc 42, each with a pointed end at the end closest to the other. Each friction disc 41 and the second friction disc 42 are connected to an elastic member 43. Because the condition of each mine car 1 varies, the position of the friction strip 7 cannot be uniform, and there are also factors such as manufacturing errors and daily wear. Therefore, the V-shaped structure of the friction strip 7 ensures that the friction strip 7 and the friction discs are effectively aligned. The elastic member 43 ensures that the friction discs fit the friction strip 7, accommodating friction strips 7 of varying positions and thicknesses. This prevents poor contact between the friction strip 7 and the first and second friction discs 41 and 42 due to errors in the mine car's position within the cage. The magnitude of friction is positively correlated with the magnitude of pressure, so the elastic member 43 can increase friction, thereby improving deceleration or accelerating during startup.

[0080] As attached Figure 4 As shown, during the process of the mine car exiting the cage to the right, when the hydraulic energy storage structure 32 releases its stored hydraulic energy, the first pushing assembly 62 is in the stopped position and the second pushing assembly 63 is in the unlocked position. At this time, because the hydraulic energy stored in the hydraulic energy storage structure 32 has not been fully released, the rotor 311, through the speed change transmission assembly 5, causes the first friction disc 41 and the second friction disc 42 to rotate clockwise, thereby driving the slider 61 to move leftward. However, because the slider 61 is blocked by the first pushing assembly 62, the slider 62 remains at the midpoint 65 of the arcuate slot 6.

[0081] When the hydraulic energy stored in the hydraulic energy storage structure 32 is completely released, the rotor 311 no longer has the ability to drive the first friction disc 41 and the second friction disc 42 to rotate clockwise. Therefore, the first friction disc 41 and the second friction disc 42 move to the right following the friction strip 7 and leave the midpoint 65 of the arc groove 6, thereby sliding toward the second end point 66 of the arc groove 6, as shown in the attached figure. Figure 5 As shown, the first friction disc 41 and the second friction disc 42 are disengaged from the mine car 1, preventing dragging. When the mine car 1 leaves the cage, the second push assembly 63 moves from the unlocked position to the stopped position, driving the slider 61 to return from the second end point 66 of the arcuate groove 6 to the midpoint 65 of the arcuate groove 6, waiting for the next mine car 1 to enter, achieving fully automatic deceleration, blocking, and starting.

[0082] The specific working process of this embodiment is as follows:

[0083] When entering the cage from the left and exiting from the left, during the entry process, the mining car 1 contacts the first friction disc 41 and the second friction disc 42 to establish a transmission connection. Power is then transmitted to the rotor 311 via the speed change transmission assembly 5, driving the rotor 311 to rotate clockwise. Simultaneously, the transmission ratio between the first friction wheel 51 and the second friction wheel 52 is adjusted to the maximum, increasing the rotation speed of the rotor 311, thereby improving the deceleration effect and the storage efficiency of hydraulic energy. At this time, the first main pipe control valve 3213 and the second branch pipe control valve 3224 are opened, and the second main pipe control valve 3223 and the first branch pipe control valve 3214 are closed, driving the hydraulic oil in the tank body 323 of the second pressure storage assembly 322 to flow along the second branch liquid pipe 3222 and enter the housing 31 through the second liquid hole 316. Driven by the rotor 311 and the slide 313, the hydraulic oil is discharged through the first liquid hole 315 and enters the first pressure storage assembly 321 along the first main liquid pipe 3211, increasing the compression amount of the second elastic member 325 of the first pressure storage assembly 321, thereby realizing the storage of hydraulic energy.

[0084] It should be noted that the second main pipe control valve 3223 and the first branch pipe control valve 3214 can also be opened, while the first main pipe control valve 3213 and the second branch pipe control valve 3224 are closed, allowing the hydraulic oil in the first pressure accumulator assembly 321 to enter the housing 31 through the second fluid hole 316 and be discharged through the first fluid hole 315 to enter the second pressure accumulator assembly 322. However, for the convenience of subsequent description, the example of entering the mine car 1 is based on the case where the first main pipe control valve 3213 and the second branch pipe control valve 3224 are opened, while the second main pipe control valve 3223 and the first branch pipe control valve 3214 are closed.

[0085] At this point, the speed of mine car 1 has slowed down to a certain degree, and when it slows down to a certain degree, the block driver 22 drives the block 21 to the blocking position, blocking mine car 1. After blocking, when the mine car exits the cage from the left side, the transmission ratio of the first friction wheel 51 to the second friction wheel 52 is adjusted to the minimum, increasing the torque of the friction transmission assembly 4 on the mine car 1 during launch, thereby improving the effectiveness of assisting the mine car 1 in launching. Since both the entry and exit of the cage are located on the same side, no additional control valve processing is required to move the block 21 to the open position. The first pressure accumulator assembly 321 releases hydraulic energy. Driven by the second elastic member 325, the hydraulic oil in the tank 323 of the first pressure accumulator assembly 321 can flow along the first main liquid pipe 3211 through the first liquid hole 315 into the housing 31, pushing the slide 313 and the rotor 311 to rotate counterclockwise. The hydraulic oil is discharged through the second liquid hole 316 and flows along the second branch liquid pipe 3222 into the second pressure accumulator assembly 322.

[0086] At this point, the second pushing assembly 63 is in the stopped position, and the first pushing assembly 62 is in the unlocked position. Because the hydraulic energy stored in the first pressure accumulator 321 has not been fully released, the rotor 311, through the speed-changing transmission assembly 5, causes the first and second friction discs 41 and 42 to rotate counterclockwise, thereby driving the slider 61 to move rightward. However, the slider 61 is blocked by the second pushing assembly 63, so the slider 62 remains at the midpoint 65 of the arcuate slot 6.

[0087] When the hydraulic energy stored in the first pressure accumulator assembly 321 is fully released, the rotor 311 no longer has the ability to drive the first and second friction discs 41, 42 to rotate counterclockwise. Consequently, the first and second friction discs 41, 42 follow the friction strip 7 and move leftward, away from the midpoint 65 of the arcuate slot 6, thereby sliding toward the first endpoint 64 of the arcuate slot 6. This disengages the first and second friction discs 41, 42 from the mine car 1, preventing drag. After the mine car 1 leaves the cage, the first push assembly 62 moves from the unlocked position to the stopped position, driving the slider 61 to return from the first endpoint 64 of the arcuate slot 6 to the midpoint 65 of the arcuate slot 6, waiting for the next mine car 1 to enter.

[0088] Similarly, when entering the cage from the left and exiting from the right, during the entry process, the mining car 1 contacts the first friction disc 41 and the second friction disc 42 to establish a transmission connection. Power is then transmitted to the rotor 311 via the speed change transmission assembly 5, driving the rotor 311 to rotate clockwise. Simultaneously, the transmission ratio between the first friction wheel 51 and the second friction wheel 52 is adjusted to the maximum, increasing the rotation speed of the rotor 311, thereby improving the deceleration effect and the storage efficiency of hydraulic energy. At this time, the first main pipe control valve 3213 and the second branch pipe control valve 3224 are opened, and the second main pipe control valve 3223 and the first branch pipe control valve 3214 are closed, driving the hydraulic oil in the tank body 323 of the second pressure storage assembly 322 to flow along the second branch liquid pipe 3222 and enter the housing 31 through the second liquid hole 316. Driven by the rotor 311 and the slide 313, the hydraulic oil is discharged through the first liquid hole 315 and enters the first pressure storage assembly 321 along the first main liquid pipe 3211, increasing the compression amount of the second elastic member 325 of the first pressure storage assembly 321, thereby realizing the storage of hydraulic energy.

[0089] At this point, the speed of mine car 1 has slowed down to a certain degree. When the speed reaches a certain level, the block driver 22 drives the block 21 to the blocking position, blocking mine car 1. Once the blocking is complete and the mine car exits the cage from the right side, the block 21 is moved to the open position. The transmission ratio between the first friction wheel 51 and the second friction wheel 52 is adjusted to its minimum, increasing the torque exerted by the friction transmission assembly 4 on the mine car 1 during its launch, thereby enhancing the effectiveness of assisting the mine car 1 in its launch. Because the entry and exit stages occur on different sides, the previously open first main control valve 3213 and second branch control valve 3224 need to be closed, while the previously closed second main control valve 3223 and first branch control valve 3214 need to be opened. The first pressure accumulator assembly 321 releases hydraulic energy. Driven by the second elastic member 325, the hydraulic oil within its tank 323 flows along the first branch pipe 3212 and into the housing 31 through the second fluid hole 316, driving the slide 313 and rotor 311 to rotate. The hydraulic oil is discharged through the first liquid hole 315 and flows along the second main liquid pipe 3221 into the tank body 323 of the second pressure storage assembly 322 .

[0090] At this point, the first pushing assembly 62 is in the stopped position, and the second pushing assembly 63 is in the unlocked position. Because the hydraulic energy stored in the first pressure accumulator assembly 321 has not been fully released, the rotor 311, through the speed-changing transmission assembly 5, causes the first and second friction discs 41, 42 to rotate clockwise, thereby driving the slider 61 to move leftward. However, the slider 61 is blocked by the first pushing assembly 62, so it remains at the midpoint 65 of the arcuate slot 6.

[0091] When the hydraulic energy stored in the first pressure accumulator assembly 321 is fully released, the rotor 311 no longer has the ability to drive the first and second friction discs 41, 42 to rotate clockwise. Consequently, the first and second friction discs 41, 42 follow the friction strip 7 and move rightward, away from the midpoint 65 of the arcuate slot 6, thereby sliding toward the second endpoint 66 of the arcuate slot 6. This disengages the first and second friction discs 41, 42 from the mine car 1, preventing drag. After the mine car 1 leaves the cage, the second push assembly 63 moves from the unlocked position to the stopped position, driving the slider 61 to return from the second endpoint 66 of the arcuate slot 6 to the midpoint 65 of the arcuate slot 6, waiting for the next mine car 1 to enter.

[0092] On the contrary, when it is necessary to enter the cage from the right and exit the cage from the right, or enter the cage from the right and exit the cage from the left, the working steps of each component are similar to the working steps of each component in entering the cage from the left and exiting the cage from the left, and entering the cage from the left and exiting the cage from the right, and will not be repeated here.

[0093] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0094] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic vehicle blocking device in a tank, which is used to limit the movement of a mine car, characterized in that: The device includes a limiting mechanism and a transducer mechanism; The limiting mechanism includes a block, which has a locking position capable of limiting the movement of the mine car and a traffic-passing position that releases the restriction on the movement of the mine car. The block is connected to a block driving member, and the block driving member can drive the block to move back and forth between the blocking position and the traffic-passing position; The energy conversion mechanism includes a housing and a hydraulic energy storage structure connected to the housing. An eccentrically arranged rotor is rotatably connected in the housing. The rotor can be connected to the mining car through a friction transmission assembly. A plurality of radially extending mounting grooves are evenly distributed on the circumferential wall of the rotor. A sliding vane is slidably connected in the mounting groove. One end of the sliding vane close to the rotor axis is connected to a first elastic member. The end of the sliding vane facing away from the rotor axis is in sealing and sliding engagement with the inner wall of the housing. The housing is provided with a first liquid hole and a second liquid hole; When the rotor rotates in a first direction, the liquid in the housing can be discharged through the first liquid hole; When the rotor rotates in the second direction, the liquid in the housing can be discharged through the second liquid hole; The hydraulic energy storage structure includes a first pressure storage component and a second pressure storage component; The first pressure storage assembly is connected to the first liquid hole through a first main liquid pipe and is connected to the second liquid hole through a first branch liquid pipe. The first main liquid pipe is provided with a first main pipe control valve, and the first branch liquid pipe is provided with a first branch pipe control valve. The second pressure storage assembly is connected to the first liquid hole through a second main liquid pipe and is connected to the second liquid hole through a second branch liquid pipe. The second main liquid pipe is provided with a second main pipe control valve, and the second branch liquid pipe is provided with a second branch pipe control valve. The first pressure storage assembly and the second pressure storage assembly both include a tank body, a piston disposed in the tank body and sealingly and slidingly connected to the tank body, and a second elastic member connected to the piston.

2. The automatic vehicle blocking device in a tank according to claim 1, characterized in that: A speed transmission assembly is connected between the friction transmission assembly and the rotor; The speed change transmission assembly includes a first friction wheel and a second friction wheel, and a transmission belt is connected between the first friction wheel and the second friction wheel; The first friction wheel includes a first fixed cone, a first movable cone that can move closer to or farther from the first fixed cone, and a return spring connected to the first movable cone. The ends of the first fixed cone and the first movable cone that are close to each other are tips that cooperate with the transmission belt. The second friction wheel includes a second fixed cone, a second movable cone that can move closer to or farther from the second fixed cone, and a cone driving member connected to the second movable cone. The ends of the second fixed cone and the second movable cone close to each other are tips that cooperate with the transmission belt.

3. The automatic vehicle blocking device in a tank according to claim 1, characterized in that: The device also includes an arcuate groove arranged along the motion track of the mining car, a slider slidably connected to the arcuate groove, and a first pushing assembly and a second pushing assembly acting on the slider, the arcuate groove having a first end point, a midpoint and a second end point arranged in sequence, the midpoint of the arcuate groove being the highest point, and the slider being connected to the friction transmission assembly; When the slider is located at the midpoint of the arc groove, the friction transmission assembly is frictionally connected to the mine car; when the slider is located at the end point of the arc groove, the friction transmission assembly is disengaged from the mine car; The first pushing assembly is capable of driving the slider to move from the first end point of the arcuate slot to the midpoint of the arcuate slot, and restricting the slider from moving from the midpoint of the arcuate slot toward the first end point of the arcuate slot; The second pushing assembly can drive the slider to move from the second end point of the arc-shaped slot to the midpoint of the arc-shaped slot, and restrict the slider from moving from the midpoint of the arc-shaped slot toward the second end point of the arc-shaped slot.

4. The automatic vehicle blocking device in a tank according to claim 1, characterized in that: The mine car is provided with a V-shaped friction strip, and the friction strip extends along the movement track of the mine car; The friction transmission assembly includes a conical first friction disc and a second friction disc, wherein the ends of the first friction disc and the second friction disc close to each other are pointed ends, and the first friction disc and the second friction disc are respectively connected to elastic members.

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