Automatic car stopping device in tank

Abstract

The invention provides an in-tank automatic car stopping device which is used for limiting movement of a mine car and comprises a limiting mechanism and an energy conversion mechanism. The limiting mechanism comprises a check block, the check block is provided with a tramcar locking position capable of limiting tramcar movement and a tramcar opening position capable of relieving tramcar movement limitation, and the transduction mechanism comprises a shell and a hydraulic energy storage structure connected with the shell. By the adoption of the structure, when the mine car enters the cage, the speed of the mine car can be reduced, and hydraulic energy can be stored to facilitate follow-up reutilization; and when the speed is reduced to a certain degree, the mine car is blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of mining devices, and particularly to an automatic car blocking device inside a cage. Background Art

[0002] In a mine hoisting system, a mine car enters a cage by using a downhill ramp to slide the mine car into the cage. The mine car first slides on the downhill ramp, reaches a certain speed, and then enters the cage through a cage stage. If the speed is too fast, the front wheel is likely to hit the limit structure inside the cage and cause a rebound, or even cause the mine car to pop out of the cage; if the speed is too slow, it cannot smoothly enter the cage, and multiple workers need to assist in pushing the car into the cage, seriously affecting the operation efficiency.

[0003] Currently, there is a lack of effective deceleration and blocking devices during the process of a mine car entering the cage. To prevent the mine car from popping out of the cage, the traditional method is that before the mine car is about to rebound, the hookman controls the action of the blocking device by stepping on a pedal to prevent the mine car from retreating. However, this method completely relies on manual judgment and operation, and there are problems such as response lag and unreliable action. Once it fails to act in time, it is very easy to cause harm to on-site operators. In addition, when it is necessary to brake the mine car, the method of multiple people using wooden boards to press on the wheels of the mine car is still generally used for deceleration, which not only has a large labor intensity but also poor safety, and does not meet the requirements of safe production in modern mines.

[0004] Although the existing car blocking devices can play a blocking role to a certain extent, most of them are only used to limit the position of the mine car and do not have an active deceleration function. The blocking mechanism has a short service life under the long-term high-speed impact of the mine car. At the same time, these devices have a low degree of automation and are difficult to make a quick response according to the actual operating state of the mine car. Therefore, there is an urgent need for a new device that can achieve automatic deceleration and reliable blocking during the process of a mine car entering the cage to improve the safety and operation efficiency of the mine transportation system. Summary of the Invention

[0005] To overcome the existing technical problems, the present invention provides an automatic car blocking device inside a cage that can automatically slow down the speed of the mine car entering the cage and block it.

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

[0007] An automatic car blocking device inside a cage, which is used to limit the movement of a mine car. The device includes a limiting mechanism and a transducer mechanism;

[0008] The limiting mechanism includes a stop block. The stop block has a car locking position that can limit the movement of the mine car and a car passing position that releases the restriction on the movement of the mine car. The stop block is connected to a stop block driving member, and the stop block driving member can drive the stop block to reciprocate between the car blocking position and the car passing position;

[0009] The energy conversion mechanism includes a housing and a hydraulic energy storage structure connected to the housing. A rotor eccentrically arranged is rotatably connected inside the housing. The rotor can be drivingly connected to the mine car through a friction drive assembly. A plurality of radially extending mounting grooves are evenly distributed on the peripheral wall of the rotor. A sliding piece is slidably connected in the mounting groove. One end of the sliding piece close to the axis of the rotor is connected with a first elastic member, and the end of the sliding piece facing away from the axis of the rotor is in sealing sliding fit with the inner wall of the housing.

[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 the first direction, the liquid in the housing can be drained through the first liquid hole;

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

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

[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. A first main pipe control valve is provided on the first main liquid pipe, and a first branch pipe control valve is provided on the first branch liquid pipe;

[0015] 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. A second main pipe control valve is provided on the second main liquid pipe, and a second branch pipe control valve is provided on the second branch liquid pipe.

[0016] As a further improvement of the present invention, both the first pressure storage assembly and the second pressure storage assembly include a tank body, a piston arranged in the tank body and in sealing sliding connection with the tank body, and a second elastic member connected to the piston.

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

[0018] The variable speed drive 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 approach or move away 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 close to each other are tips for cooperating with the transmission belt;

[0020] The second friction wheel includes a second fixed cone, a second movable cone that can approach or move away 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 for cooperating with the transmission belt.

[0021] As a further improvement of the present invention, the device further includes an arc-shaped groove arranged along the movement track of the mine car, a slider slidably connected to the arc-shaped groove, and a first pushing component and a second pushing component acting on the slider. The arc-shaped groove has a first end point, a midpoint, and a second end point arranged in sequence. The midpoint of the arc-shaped groove is its highest point, and the slider is connected to the friction drive component;

[0022] When the slider is located at the midpoint of the arc-shaped groove, the friction drive component is in frictional connection with the mine car; when the slider is located at the end point of the arc-shaped groove, the friction drive component is disengaged from the mine car;

[0023] The first pushing component can drive the slider to move from the first end point of the arc-shaped groove to the midpoint of the arc-shaped groove and restrict the slider from moving from the midpoint of the arc-shaped groove towards the first end point of the arc-shaped groove;

[0024] The second pushing component can drive the slider to move from the second end point of the arc-shaped groove to the midpoint of the arc-shaped groove and restrict the slider from moving from the midpoint of the arc-shaped groove towards the second end point of the arc-shaped groove.

[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 drive component 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 tips, and elastic members are respectively connected to the first friction disc and the second friction disc.

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

[0028] 1. When the mine car enters the cage, the friction drive component is in transmission connection with the mine car to drive the rotor to rotate for hydraulic energy storage. It can not only slow down the speed of the mine car but also store hydraulic energy for subsequent reuse. When the speed is reduced to a certain extent, the stopper is driven by the stopper driving member to move to the vehicle-blocking position to block the mine car. With the technical solution of decelerating first and then blocking, the impact force of the mine car on the stopper can be greatly reduced, the service life of the stopper can be improved, and the hydraulic energy can be stored for subsequent starting.

[0029] 2. By controlling the opening of different main pipe control valves and branch pipe control valves, the first pressure storage component and the second pressure storage component storing hydraulic energy can be discharged and drained through different liquid holes, driving the friction drive component to rotate in different directions. It can realize entering the cage from the left and exiting from the left, or entering the cage from the left and exiting from the right, or entering the cage from the right and exiting from the right, or entering the cage from the right and exiting from the left. When rotating, it can assist or even drive the mine car to start.

[0030] 3. The setting of the variable-speed transmission component can adjust the transmission ratio between the friction transmission component and the rotor, thereby adjusting the torque. When the mine car enters the cage, the transmission ratio between the first friction wheel and the second friction wheel can be adjusted to the maximum, increasing the torque of the rotor rotation, increasing the hydraulic energy, and enhancing 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 friction wheel and the second friction wheel can be adjusted to the minimum. Since the first friction wheel and the friction transmission component are on the same axis, the torque of the friction transmission component during the starting of the mine car can be increased, thus facilitating the starting of the mine car.

[0031] 4. During the process of the friction transmission component assisting the mine car to start, when the mine car has a certain speed, the torque and rotational speed of the friction transmission component will decrease accordingly. When the speed of the mine car is greater than the rotational speed of the friction transmission component, the friction transmission component will instead have a dragging effect on the mine car, reducing the starting speed of the mine car. Therefore, by setting the arc-shaped groove, during the process of the mine car leaving the cage, when the hydraulic energy storage structure releases the stored hydraulic energy, the pushing component in the opposite direction of the cage exit is in the stop position, restricting the slider from moving towards the end point in the opposite direction of the cage exit. The other pushing component is in the unlocked position, enabling the slider to move from the midpoint of the arc-shaped groove towards the end point in the cage exit direction. At this time, since the hydraulic energy stored in the hydraulic energy storage structure has not been fully released, the rotor, through the variable-speed transmission component, causes the first friction disk and the second friction disk to have a tendency to rotate in the cage exit direction, and thus has a tendency to drive the slider to move in the opposite direction of the cage exit. However, due to the obstruction of the first pushing component to the slider, the slider remains at the midpoint of the arc-shaped groove.

[0032] After the hydraulic energy stored in the hydraulic energy storage structure is fully released, the rotor at this time no longer has the ability to drive the first friction disk and the second friction disk to rotate in the cage exit direction. Therefore, the first friction disk and the second friction disk move with the mine car and leave the midpoint of the arc-shaped groove, thus sliding towards the end point of the arc-shaped groove in the cage exit direction. The separation of the first friction disk and the second friction disk from the mine car is achieved, avoiding the occurrence of dragging. After the mine car leaves the cage, the pushing component in the cage exit direction drives the slider to move from the end point of the arc-shaped groove to the midpoint of the arc-shaped groove, waiting for the next mine car to enter, achieving the effects of fully automatic deceleration, blocking, and starting. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

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

[0035] Figure 2 is Figure 1 a sectional view along the A-A direction in

[0036] Figure 3 a structural sectional view of the transducer mechanism of the present invention;

[0037] Figure 4 is Figure 1 a structural schematic diagram along the B direction in

[0038] Figure 5 is Figure 4 a structural schematic diagram after the friction drive assembly slides to the second end point;

[0039] Figure 6 is Figure 1 an enlarged view of the partial view C in

[0040] Explanation of reference numerals:

[0041] 1 - mine car, 2 - limiting mechanism, 21 - stopper, 22 - stopper driving member, 3 - transducer mechanism, 31 - housing, 311 - rotor, 312 - mounting groove, 313 - sliding piece, 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 pipe control valve, 3214 - first branch pipe control valve, 322 - second pressure storage assembly, 3221 - second main liquid pipe, 3222 - second branch liquid pipe, 3223 - second main pipe control valve, 3224 - second branch pipe control valve, 323 - tank body, 324 - piston, 325 - second elastic member, 4 - friction drive assembly, 41 - first friction disc, 42 - second friction disc, 43 - elastic member, 5 - variable speed drive assembly, 51 - first friction wheel, 511 - first fixed cone, 512 - first movable cone, 513 - return spring, 514 - first mounting shaft, 52 - second friction wheel, 521 - second fixed cone, 522 - second movable 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 end point, 65 - midpoint, 66 - second end point, 7 - friction strip. Detailed implementation manners

[0042] The drawings are only for illustrative purposes and should not be construed as limitations on this patent; for better illustration of this embodiment, some components in the drawings are omitted, enlarged or reduced, and do not represent the dimensions of the actual product.

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

[0044] Referring to Figures 1 to 6 It can be seen that an automatic anti-rolling device inside the tank is used to limit the movement of the mine car 1. The device includes a limit mechanism 2 and an energy conversion mechanism 3;

[0045] The limit mechanism 2 includes a stop block 21. The stop block 21 has a locking position that can limit the movement of the mine car 1 and a passing position that releases the restriction on the movement of the mine car 1. The stop block 21 is connected to a stop block driving member 22, and the stop block driving member 22 can drive the stop block 21 to reciprocate between the anti-rolling position and the passing position;

[0046] The energy conversion mechanism 3 includes a housing 31 and a hydraulic energy storage structure 32 connected to the housing 31. A rotor 311 that is eccentrically arranged is rotatably connected inside the housing 31. The rotor 311 can be drivingly connected to the mine car 1 through a friction transmission assembly 4. A plurality of radially extending mounting grooves 312 are evenly distributed on the peripheral wall of the rotor 311. A sliding piece 313 is slidably connected inside the mounting groove 312. One end of the sliding piece 313 close to the axis of the rotor 311 is connected to a first elastic member 314, and the end of the sliding piece 313 facing away from the axis of the rotor 311 is in sealed sliding fit with the inner wall of the housing 31.

[0047] As a specific embodiment of the present invention, there are two groups of stop blocks 21, which are respectively located on the left and right sides of the anti-rolling position of the mine car 1. Thus, no matter which side the mine car 1 enters the cage, it can be blocked by the stop block 21 to achieve the anti-rolling effect. When the mine car 1 enters the cage, the friction transmission assembly 4 is drivingly connected to the mine car 1 through friction, and then drives the rotor 311 to rotate for hydraulic energy storage. The hydraulic energy storage structure 32 can release the stored hydraulic energy. This technical solution can not only slow down the speed of the mine car 1, but also the hydraulic energy storage structure 32 can store hydraulic energy for subsequent reuse. After the mine car 1 decelerates to a certain extent, finally, the stop block driving member 22 drives the stop block 21 to move to the anti-rolling position to block the mine car 1. Under the technical solution of decelerating first and then blocking, the force of the mine car 1 hitting the stop block 21 can be greatly reduced, and the service life of the stop block 21 can be improved. And subsequently, the hydraulic energy storage structure 32 can release the stored hydraulic energy for starting use, reducing the power required to pull out the mine car 1 and reducing the load on manual or mechanical work.

[0048] In this embodiment, the stop block driving member 22 is a rotary electromagnet. Of course, in other embodiments, the stop 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 drained through the first liquid hole 315;

[0051] When the rotor 311 rotates in the second direction, the liquid in the housing 31 can be drained 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 component 321 is connected to the first liquid hole 315 through the first main liquid pipe 3211, and is connected to the second liquid hole 316 through the first branch liquid pipe 3212. A first main pipe control valve 3213 is provided on the first main liquid pipe 3211, and a first branch pipe control valve 3214 is provided on the first branch liquid pipe 3212;

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

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

[0056] The direction in which the mine car 1 enters or exits the cage each time may be different. However, in the technical solution of the present invention, due to the settings of the friction drive assembly 4, the first pressure storage component 321, and the second pressure storage component 322, even if the direction of entering the cage is different each time, the deceleration effect can be achieved. Because whether the mine car 1 enters from the left or from the right, it can drive the rotor 311 to rotate, thereby pressurizing the liquid in the first pressure storage component 321 or the second pressure storage component 322. Since the direction of exiting the cage each time is uncertain whether it is the same as or opposite to the direction of entering the cage, if the hydraulic energy is directly released, the direction of providing power can only be the opposite direction of entering the cage. For example, if the mine car enters the cage from the left, the direction of entering the cage is to the right, and at this time the reverse direction of providing power is to the left. Therefore, when the cage exits, by adjusting the start and stop of different main pipe control valves or branch pipe control valves, different pipelines can be connected to provide the vehicle body with starting power in different directions, which helps to reduce the labor intensity of the pusher or reduce the torque of the pusher at the start, and prolong the life of the machine.

[0057] It should be noted that, to form a complete pipeline, the first main pipe control valve 3213 and the second branch pipe control valve 3224 form a group, and the second main pipe control valve 3223 and the first branch pipe control valve 3214 form a group. The control valves within a group start and stop synchronously. When the ore car 1 enters and exits the cage on different sides, the control valves of this group are closed and the solenoid valves of the other group are opened. When the ore car 1 enters and exits the cage on the same side, the control of the control valves remains unchanged. At this time, it should be noted that when the control of the control valves remains unchanged, the reason for being able to select to drive the ore car 1 to start and leave the cage is that the stop block 21 moves to the traffic position. Through this technical solution, it is possible to achieve left-side entry and left-side exit, or left-side entry and right-side exit, or right-side entry and right-side exit, or right-side entry and left-side exit.

[0058] As a further improvement of the present invention, both the first pressure storage assembly 321 and the second pressure storage assembly 322 include a tank body 323, a piston 324 disposed inside the tank body 323 and sealingly and slidably connected to the tank body 323, and a second elastic member 325 connected to the piston 324. The torque requirement for rotating the rotor 311 by compressing the second elastic member 325 becomes larger and larger, and thus the resistance of the friction drive assembly 4 to the ore car 1 is greater, thereby improving the deceleration effect.

[0059] In this embodiment, as shown in the appendix Figure 3 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. Then, driven by the rotor 311 and the sliding vane 313, it 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 and realizing the storage of hydraulic energy.

[0060] Conversely, when the rotor 311 rotates in the counterclockwise direction, 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. Then, driven by the rotor 311 and the sliding vane 313, it is discharged through the second liquid hole 316 and enters the tank body 323 of the second pressure storage assembly 322, 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 change drive assembly 5 is connected between the friction drive assembly 4 and the rotor 311;

[0062] The speed change drive 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 approach or move away from the first fixed cone 511, and a return spring 513 connected to the first movable cone 512. One end of the first fixed cone 511 and the first movable cone 512 that are close to each other is a tip for cooperating with the transmission belt 53;

[0064] The second friction wheel 52 includes a second fixed cone 521, a second movable cone 522 that can approach or move away from the second fixed cone 521, and a cone driving member 523 connected to the second movable cone 522. One end of the second fixed cone 521 and the second movable cone 522 that are close to each other is a tip for cooperating 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 further includes a first mounting shaft 514. The first fixed cone 511 is integrally sleeved on the first mounting shaft 514, and the first movable cone 512 is slidably sleeved on the first mounting shaft 514. The second friction wheel 52 further includes a second mounting shaft 524. The second fixed cone 521 is integrally sleeved on the second mounting shaft 524, and the second movable cone 522 is slidably sleeved on the second mounting shaft 524.

[0067] The setting of the variable-speed transmission assembly 5 can adjust the transmission ratio between the friction transmission assembly 4 and the rotor 311, and thus adjust the torque. The principle of 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 cooperating with the transmission belt 53 are all inclined planes. Therefore, by adjusting the position of the second movable cone 522 on the second mounting shaft 524 through the cone driving member 523, different inclined planes for cooperating with the transmission belt 53 can be obtained. For example, when the cone driving member 523 drives the tip of the second movable cone 522 away from the transmission belt 53, the diameter of the surface of the transmission belt 53 cooperating with the second movable cone 522 becomes larger, 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 between the first friction wheel 51 and the second friction wheel 52 can be adjusted to the maximum, increasing the rotation speed of the rotor 311, thereby improving the deceleration effect and the hydraulic energy storage efficiency.

[0069] When the mine car 1 leaves the cage, the stop block 21 moves to the traffic position, and the hydraulic energy storage structure 32 converts hydraulic energy into mechanical energy. At this time, the transmission ratio between 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 assembly 4 are located on the first mounting shaft 514, the torque of the friction transmission assembly 4 during the starting of the mine car 1 can be increased, improving the effect of assisting the starting of the mine car 1.

[0070] As a further improvement of the present invention, the device further includes an arc-shaped groove 6 arranged along the movement track of the mine car 1, a slider 61 slidably connected to the arc-shaped groove 6, and a first pushing component 62 and a second pushing component 63 acting on the slider 61. The arc-shaped 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 arc-shaped groove 6 is its highest point, and the slider 61 is connected to the friction drive assembly 4;

[0071] When the slider 61 is located at the midpoint 65 of the arc-shaped groove 6, the friction drive assembly 4 is in frictional connection with the mine car 1; when the slider 61 is located at the end point of the arc-shaped groove 6, the friction drive assembly 4 is disengaged from the mine car 1;

[0072] The first pushing component 62 can drive the slider 61 to move from the first end point 64 of the arc-shaped groove 6 to the midpoint 65 of the arc-shaped groove 6, and restrict the slider 61 from moving from the midpoint 65 of the arc-shaped groove 6 towards the first end point 64 of the arc-shaped groove 6;

[0073] The second pushing component 63 can drive the slider 61 to move from the second end point 66 of the arc-shaped groove 6 to the midpoint 65 of the arc-shaped groove 6, and restrict the slider 61 from moving from the midpoint 65 of the arc-shaped groove 6 towards the second end point 66 of the arc-shaped groove 6.

[0074] During the process of the friction drive assembly 4 assisting the mine car 1 to start, when the mine car 1 has a certain speed, due to the reduction of hydraulic energy, both the torque and the rotational speed of the friction drive assembly 4 will decrease accordingly. When the speed of the mine car 1 is greater than the rotational speed of the friction drive assembly 4, the friction drive assembly 4 will instead have a dragging effect on the mine car 1, reducing the starting speed of the mine car 1. To avoid the situation where the kinetic energy of the vehicle body is re-absorbed due to the reduction of the power of the friction drive assembly 4, resulting in a dragging situation. Therefore, the arc-shaped groove 6 is provided. As shown in the attached Figure 4 figure, during the process of the mine car exiting the cage to the right, when the hydraulic energy storage structure 32 releases the stored hydraulic energy, the first pushing component 62 is in a stop position, restricting the slider 61 from moving from the midpoint 65 of the arc-shaped groove 6 towards the first end point 64 of the arc-shaped groove 6. The second pushing component 63 is in an unlocked position, enabling the slider 61 to move from the midpoint 65 of the arc-shaped groove 6 towards the second end point 66 of the arc-shaped groove 6. At this time, since the hydraulic energy stored in the hydraulic energy storage structure 32 has not been completely released, the rotor 311 causes the first friction disk 41 and the second friction disk 42 to have a tendency to rotate clockwise through the speed change drive assembly 5, and thus has a tendency to drive the slider 61 to move to the left. However, since the slider 61 is blocked by the first pushing component 62, the slider 62 is kept at the midpoint 65 of the arc-shaped groove 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. Then, the first friction disc 41 and the second friction disc 42 move to the right with the mine car 1 and leave the midpoint 65 of the arc groove 6, and thus slide down to the second end point 66 of the arc groove 6, as shown in the appendix. Figure 5 This realizes the detachment of the first friction disc 41 and the second friction disc 42 from the mine car 1 and avoids the situation of dragging. After the mine car 1 leaves the cage, the second pushing component 63 drives the slider 61 to move from the second end point 66 of the arc groove 6 to the midpoint 6 of the arc groove 6, waiting for the next mine car 1 to enter, achieving the effects of fully automatic deceleration, blocking, and starting.

[0076] Specifically, both the first pushing component 62 and the second pushing component 63 include a stop block 621 and a stop block driving member 622 connected to the stop block 621. The stop block 621 is connected with a slide rail slider assembly, so that the stop block 621 can move along the length direction of the slide rail slider assembly to the stop position or the unlocking position under the drive of the stop block driving member 622. When the stop block 621 moves from the unlocking position to the stop position, it can drive the slider 61 to move from a certain end point of the arc groove 6 to the midpoint 65 of the arc groove 6 and restrict the slider 61 from moving from the midpoint 65 of the arc groove 6 towards a certain end point. When the stop block 621 moves to the unlocking position, the slider 61 can move from the midpoint 65 of the arc groove 6 to a certain end point, that is, the friction transmission component 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 track of the mine car 1.

[0079] The friction transmission component 4 includes a conical first friction disc 41 and a second friction disc 42. One end of the first friction disc 41 and the second friction disc 42 that are close to each other is a tip. The first friction disc 41 and the second friction disc 42 are respectively connected with elastic members 43. Since the conditions of each mine car 1 are different, the position where the friction strip 7 is set cannot be guaranteed to be unified, and there are also reasons such as processing errors and daily wear. Therefore, through the V-shaped structure of the friction strip 7, the friction strip 7 can be effectively attached to the friction disc. By setting the elastic members 43, the friction discs can be attached to the friction strip 7, which can adapt to friction strips 7 with different positions and thicknesses, and avoid poor contact between the friction strip 7 and the first friction disc 41 and the second friction disc 42 due to the error in the position of the mine car in the cage. And the magnitude of the frictional force is positively correlated with the magnitude of the pressure. Therefore, by setting the elastic members 43, the frictional force can be increased, thereby improving the deceleration effect or increasing the acceleration effect when starting.

[0080] As shown in the appendixFigure 4 As shown, during the process of the mine car exiting the cage to the right, when the hydraulic energy storage structure 32 releases the stored hydraulic energy, the first pushing component 62 is in the stopping position and the second pushing component 63 is in the unlocking position. At this time, since the hydraulic energy stored in the hydraulic energy storage structure 32 is not fully released, the rotor 311 causes the first friction disk 41 and the second friction disk 42 to tend to rotate clockwise through the speed-changing transmission component 5, and further tends to drive the slider 61 to move to the left. However, since the slider 61 is blocked by the first pushing component 62, the slider 62 is kept at the midpoint 65 of the arc-shaped groove 6.

[0081] After the hydraulic energy stored in the hydraulic energy storage structure 32 is fully released, the rotor 311 no longer has the ability to drive the first friction disk 41 and the second friction disk 42 to rotate clockwise. Thus, the first friction disk 41 and the second friction disk 42 move to the right along with the friction strip 7 and leave the midpoint 65 of the arc-shaped groove 6, and thus slide down to the second end point 66 of the arc-shaped groove 6, as shown in the appendix. Figure 5 This realizes the detachment of the first friction disk 41 and the second friction disk 42 from the mine car 1, avoiding the situation of dragging. After the mine car 1 leaves the cage, the second pushing component 63 moves from the unlocking position to the stopping position, driving the slider 61 to reset from the second end point 66 of the arc-shaped groove 6 to the midpoint 65 of the arc-shaped groove 6, waiting for the next mine car 1 to enter, achieving the effects of full-automatic deceleration, blocking and starting.

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

[0083] When it is necessary to enter the cage from the left and exit from the left, during the process of entering the cage, the mine car 1 comes into contact with the first friction disk 41 and the second friction disk 42 to achieve a transmission connection. The power is transmitted to the rotor 311 through the speed-changing transmission component 5, driving the rotor 311 to rotate in the clockwise direction. At the same time, the transmission ratio of 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 hydraulic energy storage efficiency. 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. The hydraulic oil in the tank body 323 of the second pressure storage component 322 is driven to flow along the second liquid pipe 3222 and enter the housing 31 through the second liquid hole 316. Driven by the rotor 311 and the sliding vane 313, the hydraulic oil is discharged through the first liquid hole 315 and flows along the first main liquid pipe 3211 into the first pressure storage component 321, increasing the compression amount of the second elastic member 325 of the first pressure storage component 321, realizing the storage of hydraulic energy.

[0084] It should be noted that it is also possible that the second main control valve 3223 and the first branch control valve 3214 are opened, the first main control valve 3213 and the second branch control valve 3224 are closed, and the hydraulic oil of the first pressure storage assembly 321 enters the housing 31 through the second liquid hole 316, and is discharged through the first liquid hole 315 and enters the second pressure storage assembly 322. However, for the convenience of subsequent description, when the ore truck 1 enters, the first main control valve 3213 and the second branch control valve 3224 are opened, and the second main control valve 3223 and the first branch control valve 3214 are closed as an example.

[0085] At this time, the speed of the ore truck 1 has decreased. When it decelerates to a certain extent, the stopper 21 is driven by the stopper driving member 22 to move to the car blocking position to block the ore truck 1. After the blocking ends, when the ore truck exits the cage from the left side, the transmission ratio of the first friction wheel 51 and the second friction wheel 52 is adjusted to the minimum, increasing the torque of the friction transmission assembly 4 when the ore truck 1 starts, and improving the effect of assisting the ore truck 1 to start. Since both entering and exiting the cage are on the same side, there is no need to perform additional processing on the control valve, and the stopper 21 is moved to the vehicle passing position. The first pressure storage assembly 321 releases hydraulic energy. The hydraulic oil in the tank 323 of the first pressure storage assembly 321 can, under the drive of the second elastic member 325, enter the housing 31 along the first main liquid pipe 3211 through the first liquid hole 315, push the slide piece 313 and the rotor 311 to rotate counterclockwise, and the hydraulic oil is discharged through the second liquid hole 316 and enters the second pressure storage assembly 322 along the second branch liquid pipe 3222.

[0086] At this time, the second pushing assembly 63 is in the stopping position, and the first pushing assembly 62 is in the unlocking position. Since the hydraulic energy stored in the first pressure storage assembly 321 has not been completely released, the rotor 311 causes the first friction disc 41 and the second friction disc 42 to have a tendency to rotate counterclockwise through the speed change transmission assembly 5, and thus has a tendency to drive the slider 61 to move to the right. However, since the slider 61 is blocked by the second pushing assembly 63, the slider 62 is kept at the midpoint 65 of the arc-shaped groove 6.

[0087] After the hydraulic energy stored in the first pressure storage assembly 321 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 counterclockwise. Therefore, the first friction disc 41 and the second friction disc 42 move leftward along with the friction strip 7 and leave the midpoint 65 of the arc-shaped groove 6, and thus slide down to the first end point 64 of the arc-shaped groove 6. The separation of the first friction disc 41 and the second friction disc 42 from the ore truck 1 is realized, avoiding the situation of dragging. When the ore truck 1 leaves the cage, the first pushing assembly 62 moves from the unlocking position to the stopping position, driving the slider 61 to reset from the first end point 64 of the arc-shaped groove 6 to the midpoint 65 of the arc-shaped groove 6. Wait for the next ore truck 1 to enter.

[0088] Similarly, when it is necessary to enter the cage from the left and exit from the right, during the process of entering the cage, the mine car 1 comes into contact with the first friction disc 41 and the second friction disc 42 to achieve a transmission connection. The power is transmitted to the rotor 311 through the variable-speed transmission assembly 5, driving the rotor 311 to rotate in the clockwise direction. At the same time, the transmission ratio of the first friction wheel 51 and the second friction wheel 52 is adjusted to the maximum to increase the rotation speed of the rotor 311, thereby improving the deceleration effect and the hydraulic energy storage efficiency. 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. The hydraulic oil in the tank body 323 of the second pressure storage assembly 322 flows along the second liquid pipe 3222 and enters the housing 31 through the second liquid hole 316. Driven by the rotor 311 and the sliding vane 313, the hydraulic oil is discharged through the first liquid hole 315 and flows along the first main liquid pipe 3211 into the first pressure storage assembly 321, increasing the compression amount of the second elastic member 325 of the first pressure storage assembly 321 to achieve the storage of hydraulic energy.

[0089] At this time, the speed of the mine car 1 has decreased. When it decelerates to a certain extent, the stopper driving member 22 drives the stopper 21 to move to the car-blocking position to block the mine car 1. After the blocking ends, when the mine car exits the cage from the right, the stopper 21 is moved to the car-passing position. And the transmission ratio of the first friction wheel 51 and the second friction wheel 52 is adjusted to the minimum to increase the torque of the friction transmission assembly 4 when the mine car 1 starts, improving the effect of assisting the mine car 1 to start. Since the entry and exit of the cage are on different sides, it is necessary to close the originally opened first main pipe control valve 3213 and the second branch pipe control valve 3224, and open the originally closed second main pipe control valve 3223 and the first branch pipe control valve 3214. The first pressure storage assembly 321 releases hydraulic energy. The hydraulic oil in the tank body 323 of the first pressure storage assembly 321 can flow along the first liquid pipe 3212 and enter the housing 31 through the second liquid hole 316 under the drive of the second elastic member 325, pushing the sliding vane 313 and the 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 time, the first pushing assembly 62 is in the stopping position, and the second pushing assembly 63 is in the unlocking position. Since the hydraulic energy stored in the first pressure storage assembly 321 is not completely released, the rotor 311 makes the first friction disc 41 and the second friction disc 42 tend to rotate clockwise through the variable-speed transmission assembly 5, and then there is a tendency to drive the slider 61 to move to the left. However, since the slider 61 is blocked by the first pushing assembly 62, the slider 62 is kept at the midpoint 65 of the arc-shaped groove 6.

[0091] When the hydraulic energy stored in the first pressure storage assembly 321 is completely released, the rotor 311 at this time 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 along with the friction strip 7 and leave the midpoint 65 of the arc-shaped groove 6, and thus slide down to the second end point 66 of the arc-shaped groove 6. This realizes the detachment of the first friction disc 41 and the second friction disc 42 from the mine car 1, avoiding the situation of dragging. When the mine car 1 leaves the cage, the second pushing assembly 63 moves from the unlocking position to the stopping position, driving the slider 61 to reset from the second end point 66 of the arc-shaped groove 6 to the midpoint 65 of the arc-shaped groove 6. Wait for the next mine car 1 to enter.

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

[0093] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0094] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An automatic vehicle blocking device inside a tank, which is used to restrict the movement of a mine car, characterized in that, The device comprises a limiting mechanism and a transducing mechanism; The limiting mechanism comprises a block, the block having a locking position capable of limiting the movement of the mine car and a traffic-passing position capable of releasing the restriction on the movement of the mine car, the block being connected to a block driving member, the block driving member being capable of driving the block to reciprocate between the blocking position and the traffic-passing position; The energy conversion 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 mining car through a friction transmission component. A plurality of radially extending installation grooves are evenly distributed on the peripheral wall of the rotor. A sliding plate is slidably connected in the installation groove. The end of the sliding plate close to the rotor axis is connected to a first elastic member, and the end of the sliding plate facing away from the rotor axis is sealingly slidably matched with the inner wall of the shell.

2. The automatic vehicle blocking device inside the tank according to claim 1, characterized in that 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 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.

3. The automatic vehicle blocking device inside the tank according to claim 2, characterized in that, 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 slidably connected to the tank body, and a second elastic member connected to the piston.

4. The automatic vehicle blocking device inside the tank according to claim 1, characterized in that, A speed change transmission assembly is connected between the friction transmission assembly and the rotor; The speed change transmission assembly comprises a first friction wheel and a second friction wheel, wherein a transmission belt is connected between the first friction wheel and the second friction wheel; The first friction wheel comprises a first fixed cone, a first movable cone which can be moved close to or away from the first fixed cone, and a return spring connected to the first movable cone, and the ends of the first fixed cone and the first movable cone which are close to each other are pointed ends which cooperate with the transmission belt; The second friction wheel includes a second fixed cone, a second movable cone that can be close to or away 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.

5. The automatic vehicle blocking device inside the tank according to claim 1, characterized in that The device also includes an arc groove arranged along the motion track of the mining car, a slider slidably connected to the arc groove, and a first pushing assembly and a second pushing assembly acting on the slider, the arc groove has a first end point, a midpoint and a second end point arranged in sequence, the midpoint of the arc groove is its highest point, and the slider is 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 component can drive the slider to move from the first end point of the arc groove to the midpoint of the arc groove, and restrict the slider from moving from the midpoint of the arc groove towards the first end point of the arc groove; The second pushing component can drive the slider to move from the second end point of the arc groove to the midpoint of the arc groove, and restrict the slider from moving from the midpoint of the arc groove towards the second end point of the arc groove.

6. The automatic vehicle blocking device inside the tank according to claim 1, characterized in that, A V-shaped friction strip is provided on the ore cart, and the friction strip extends along the movement track of the ore cart; The friction drive component includes a conical first friction disk and a second friction disk. One end of the first friction disk and the second friction disk that are close to each other is a tip, and elastic members are respectively connected to the first friction disk and the second friction disk.

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