Intelligent electric car arrester in mine car tank

Abstract

The intelligent electric car arrester in the mine car tank comprises a car arresting component, the car arresting component comprises a car arresting hook capable of fixing a mine car, the car arresting hook is in transmission connection with an electric push rod transmission mechanism, the electric push rod transmission mechanism comprises an electric push rod shell, and an electric push rod is arranged in the electric push rod shell; a piston rod of the electric push rod is hinged to a rotating swing arm, and the rotating swing arm is fixedly arranged on the center shaft and can rotate along with the center shaft. The mine car position monitoring sensor and the car arrester position real-time monitoring sensor are arranged on the two sides of the rail; the electric push rod transmission mechanism is electrically connected with the PLC locking linkage control system, the PLC locking linkage control system is electrically connected with the handheld wireless remote controller and can be controlled through the wireless handheld remote controller, and field personnel can conveniently operate within the range of 30 meters outside the cage.

Description

Technical Field

[0001] The invention relates to an intelligent electric car stopper in a mine car tank, which is particularly suitable for automatic car stopper control of a mine car in a cage in a mine transportation system. Background Art

[0002] The tank cage is used to transport materials, and rail cars are generally used as carriers and containers for material transportation. Two sets of front and rear rail car blockers are usually configured in the tank. The empty car (or heavy car) outside the tank is pushed into the tank by the car pusher of the car operating mechanism, and then the heavy car (or empty car) in the tank is pushed out through the transmission between the cars. Before pushing the car, the front and rear car blockers in the tank must be opened first, and the front and rear car blockers must be closed after the external car enters to achieve the car blocking function.

[0003] At present, the tank car blocker mainly adopts mechanical linkage and manual mode for opening and closing operation. The problems of mechanical linkage include unstable action or uncoordinated action sequence, which leads to the fact that the push car operation cannot be completed in one time and needs to be repeated multiple times, resulting in low efficiency.

[0004] Manual operation requires the arrangement of special post workers, which is not only labor-intensive, but also has problems such as the incoordination or jamming between the car blocker and the mine car position. These problems are manifested as: the car blocker is not opened or closed properly, the car blocker is closed before the mine car in the tank is completely out, or the car blocker fails to close in time when the external mine car is completely in the tank, causing the newly pushed mine car to rush out of the cage from the exit side, seriously affecting the improvement of transportation efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an intelligent electric car stopper in the mine car tank in view of the shortcomings of the above-mentioned technical solutions, so as to realize the automatic operation of the whole process of vehicle operation, and can also be controlled by a wireless handheld remote control, so as to facilitate on-site personnel to operate within a range of 30 meters outside the cage.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: An intelligent electric car stopper in a mine car tank, comprising a car stopper component, wherein the car stopper component comprises a car stopper hook capable of fixing the mine car, and the car stopper hook is transmission-connected to an electric push rod transmission mechanism, and is characterized in that: The electric push rod transmission mechanism includes an electric push rod housing, in which an electric push rod is arranged, a piston rod of the electric push rod is hinged to a rotating swing arm, the rotating swing arm is fixedly arranged on the central axis, and the rotating swing arm can rotate together with the central axis; The central axis is fixedly provided with left and right piston rod connecting pieces, one end of which is hinged with a piston rod hinge seat, the piston rod hinge seat is provided at the end of the right piston rod, the left and right piston rod connecting pieces are hinged to the right piston rod through the piston rod hinge seat, the right piston rod is provided with a piston rod hook-shaped piece, and the piston rod hook-shaped piece is hinged to the hook-shaped part of the anti-vehicle hook through the anti-vehicle hook hinge shaft; It also includes a mine car position monitoring sensor and a car blocker position real-time monitoring sensor arranged on both sides of the track; the electric push rod transmission mechanism is electrically connected to a PLC locking linkage control system, and the PLC locking linkage control system is electrically connected to a handheld wireless remote control.

[0007] The following are further improvements to the above technical solution: The motion stroke S of the electric linear actuator can be calculated by the following formula: S=Smin+(Smax−Smin)⋅FmaxF Where: S is the actual stroke of the electric linear actuator; Smin is the minimum stroke of the electric linear actuator; Smax is the maximum stroke of the electric linear actuator; F is the force acting on the electric linear actuator; Fmax is the maximum force that the electric linear actuator can withstand.

[0008] The following are further improvements to the above technical solution: The maximum thrust, Fpush and maximum pulling force, Fpull of the electric push rod are 200kg and 170kg respectively. ΔL is the stroke adjustment, ranging from 0-100mm, and the optimal value is 50mm. The maximum thrust, Fpush and maximum pulling force, Fpull of the electric push rod are 200kg and 170kg respectively. The maximum speed, v, of the electric push rod is 160mm / s, and the opening and closing time is less than 1s.

[0009] The following are further improvements to the above technical solution: Install high-sensitivity light curtain sensors at appropriate positions on both sides of the inner wall of the cage; judge whether the mine car has moved in place by the blocking time of the mine car and the number of light curtain actions; the response time T of the sensor can be calculated by the following formula: sensor response time T=D / v min , where D is the minimum width of the minecart, ranging from 0.5-1.5m, and the optimal value is 1m; v min It is the minimum movement speed of the minecart, ranging from 0.1-0.5m / s, and the optimal value is 0.3m / s.

[0010] The following are further improvements to the above technical solution: The effective distance R of wireless remote control is: ; Where Pt is the transmit power, ranging from 1-5W, with an optimal value of 3W; Gt is the transmit antenna gain, ranging from 3-8dBi, with an optimal value of 5dBi; Gr is the receive antenna gain, ranging from 3-8dBi, with an optimal value of 5dBi; λ is the wavelength, assuming the 2.4GHz frequency band is used, the wavelength is approximately 0.125m; P min It is the minimum receiving power, ranging from -90dBm to -70dBm, and the optimal value is -80dBm.

[0011] The following are further improvements to the above technical solution: A middle car-blocking member swinging plate is fixedly arranged on the central shaft, and a car-blocking plate is fixedly arranged on the end of the middle car-blocking member swinging plate.

[0012] The following are further improvements to the above technical solution: The middle car-blocking member swing plate and the left and right piston rod connecting members are arranged at intervals.

[0013] The whole operation process is automated and can also be controlled by a wireless handheld remote control, making it convenient for on-site personnel to operate within a range of 30 meters outside the cage.

[0014] The PLC locking linkage control system controls the push and retraction of the electric push rod, and the electric push rod can drive the rotating swing arm, and the rotating swing arm can drive the central shaft to rotate, driving the swing plate of the middle car blocking part and the car blocking plate fixed at its end, and the car blocking plate blocks the mine car 1.

[0015] The central axis is driven to rotate to drive the left and right piston rod connecting pieces, one end of the left and right piston rod connecting pieces is hinged with a piston rod hinge seat, the left and right piston rod connecting pieces are hinged to the right piston rod through the piston rod hinge seat, and a piston rod hook is provided on the right piston rod, the piston rod hook is hinged to the anti-car hook hook part through the anti-car hook hinge shaft, driving the central axis to rotate, thereby driving the anti-car hook hook part to limit the mine car. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the vehicle blocking device of the present invention; Figure 3 It is a structural schematic diagram of the vehicle blocking component; Figure 4 It is a side view of the vehicle arresting device; Figure 5 The present invention is used as a flow chart.

[0017] In the figure: 1. Mine car; 2. Mine wheel; 3. Car stopper hook; 301. Car stopper hook seat; 302. Car stopper hook articulated seat; 303. Car stopper hook articulated shaft; 304. Piston rod hook; 305. Right piston rod; 306. Left piston rod; 307. Car stopper hook; 308. Piston rod articulated seat; 4. Guide rail; 5. Car stopper frame; 6. Car stopper plate, 601. Middle car stopper swing plate; 602. Left and right piston rod connecting parts; 7. Electric push rod transmission mechanism; 701. Electric push rod; 702. Electric push rod housing; 703. Rotating swing arm; 704. Center axis; 8. Mine car position monitoring sensor; 9. Car stopper position real-time monitoring sensor; 10. PLC locking linkage control system; 11. Handheld wireless remote control. DETAILED DESCRIPTION

[0018] Embodiment, as attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, an intelligent electric car stopper in a mine car tank includes a car stopper component, which includes a car stopper hook 3 that can fix the mine car 1, and the car stopper hook 3 is transmission-connected to an electric push rod transmission mechanism 7.

[0019] The electric push rod transmission mechanism 7 includes an electric push rod housing 702, in which an electric push rod 701 is arranged. The piston rod of the electric push rod 701 is hinged to a rotating swing arm 703, and the rotating swing arm 703 is fixedly arranged on a central axis 704. The rotating swing arm 703 can rotate together with the central axis 704. When the electric push rod 701 is pushed out and recovered, the electric push rod 701 can drive the rotating swing arm 703, and the rotating swing arm 703 can drive the central axis 704 to rotate.

[0020] The left and right piston rod connecting members 602 are fixedly arranged on the central axis 704, and one end of the left and right piston rod connecting members 602 is hinged with a piston rod hinge seat 308, and the piston rod hinge seat 308 is arranged at the end of the right piston rod 305. The left and right piston rod connecting members 602 are hinged to the right piston rod 305 through the piston rod hinge seat 308, and the right piston rod 305 is provided with a piston rod hook 304, and the piston rod hook 304 is hinged to the anti-wheel hook hook part 307 through the anti-wheel hook hinge shaft 303.

[0021] The left and right piston rod connecting members 602 can rotate together with the central shaft 704 .

[0022] The other end of the left and right piston rod connecting members 602 is hinged with a left piston rod 306 , whose structure is the same as that of the right piston rod 305 , and the auxiliary structure of the left piston rod 306 is also the same as that of the right piston rod 305 .

[0023] An intermediate vehicle-blocking member swinging plate 601 is fixedly disposed on the central shaft 704 , and a vehicle-blocking plate 6 is fixedly disposed at the end of the intermediate vehicle-blocking member swinging plate 601 .

[0024] The middle vehicle-blocking swing plate 601 and the left and right piston rod connecting members 602 are arranged at intervals.

[0025] It also includes a mine car position monitoring sensor 8 and a car blocker position real-time monitoring sensor 9 arranged on both sides of the track 4; the electric push rod transmission mechanism 7 is electrically connected to a PLC locking linkage control system 10, and the PLC locking linkage control system 10 is electrically connected to a handheld wireless remote control 11.

[0026] The electric push rod transmission mechanism 7 and the PLC locking linkage control system 10 are powered by a battery power supply system, and the battery power supply system is electrically connected to the wireless charging device.

[0027] The electric push rod 7 uses an industrial heavy-duty electric push rod with large torque thrust and pulling force, and the electric push rod 7 is equipped with a travel limit sensor and a torque limiter.

[0028] The PLC locking linkage control system 10 controls the push and retraction of the electric push rod 701. The electric push rod 701 can drive the rotating swing arm 703. The rotating swing arm 703 can drive the central shaft 704 to rotate, driving the middle car-blocking member swing plate 601 and the car-blocking plate 6 fixed at its end, and the car-blocking plate 6 blocks the mine car 1.

[0029] The central shaft 704 is driven to rotate to drive the left and right piston rod connecting members 602. One end of the left and right piston rod connecting members 602 is hinged with a piston rod hinge seat 308. The piston rod hinge seat 308 is arranged at the end of the right piston rod 305. The left and right piston rod connecting members 602 are hinged to the right piston rod 305 through the piston rod hinge seat 308. The right piston rod 305 is provided with a piston rod hook 304. The piston rod hook 304 is hinged to the anti-car hook hook part 307 through the anti-car hook hinge shaft 303. The central shaft 704 is driven to rotate and the anti-car hook hook part 307 is driven to limit the mine car.

[0030] The motion stroke S of the electric linear actuator 7 can be calculated by the following formula: S=Smin+(Smax−Smin)⋅FmaxF Wherein: S is the actual stroke of the electric linear actuator (mm); Smin is the minimum stroke of the electric linear actuator (mm); Smax is the maximum stroke of the electric linear actuator (mm); F is the force acting on the electric linear actuator (N); Fmax is the maximum force that the electric linear actuator can withstand (N).

[0031] The maximum thrust, Fpush and maximum pulling force, Fpull of the electric push rod are 200kg and 170kg respectively. ΔL is the stroke adjustment, ranging from 0-100mm, and the optimal value is 50mm. The maximum thrust, Fpush and maximum pulling force, Fpull of the electric push rod are 200kg and 170kg respectively. The maximum speed, v, of the electric push rod is 160mm / s, and the opening and closing time is less than 1s.

[0032] Mine car position monitoring sensor 8: Install high-sensitivity light curtain sensors at appropriate positions on both sides of the inner wall of the cage; judge whether the mine car has moved in place by the blocking time of the mine car and the number of light curtain actions; the response time of the sensor; T can be calculated by the following formula: Sensor response time T = D / v min, where D is the minimum width of the minecart, ranging from 0.5-1.5m, and the optimal value is 1m; v min It is the minimum moving speed of the mine car, ranging from 0.1-0.5m / s, and the optimal value is 0.3m / s; the sensor is small in size, does not occupy cage space, and is easy to install and maintain.

[0033] PLC interlocking linkage control system 10: Siemens PLC is selected as the control core, with Ethernet interface; it is powered by the battery of the smart cage system and adopts wireless charging technology; it communicates with the ground through a long-distance wireless bridge and exchanges data with the lifting signal operation system.

[0034] Automatic operation process: After the cage control PLC obtains the cage arrival signal through wireless communication, it automatically opens the car blocker, and the car pusher starts to push it out. When the cage light curtain sensor detects that the mine car in the tank has moved out of the cage, the car blocker on the outgoing side is automatically closed. After the car pusher pushes the mine car completely into the cage, the car blocker on the incoming side is automatically closed.

[0035] The PLC detects the open and closed status of the car arrester through the position sensor, and transmits the status to the ground system wirelessly for locking and display.

[0036] Handheld wireless remote control: The handheld wireless remote control can control the tank car blocker within a range of 30 meters around the tank cage; the tank control box is equipped with a remote control receiving device, which communicates with the PLC in the tank and converts the key commands of the handheld remote control into the opening and closing actions of the tank car blocker.

[0037] The handheld wireless remote controller can control the in-tank car blocker within a range of 30 meters around the tank cage. The in-tank control box is equipped with a remote control receiving device, which communicates with the PLC in the tank and converts the key commands of the handheld remote controller into the opening and closing actions of the in-tank car blocker.

[0038] The effective distance R of wireless remote control is: ; Where Pt is the transmit power, ranging from 1-5W, with an optimal value of 3W; Gt is the transmit antenna gain, ranging from 3-8dBi, with an optimal value of 5dBi; Gr is the receive antenna gain, ranging from 3-8dBi, with an optimal value of 5dBi; λ is the wavelength, assuming the 2.4GHz frequency band is used, the wavelength is approximately 0.125m; P min It is the minimum receiving power, ranging from -90dBm to -70dBm, and the optimal value is -80dBm.

[0039] The method of using the above-mentioned intelligent electric car blocker in the mine car tank is as follows: when the tank roof is in place, the safety door is opened and the rocking platform falls, the car blocker in the tank opens automatically, the trolley pusher starts pushing the trolley, the sensor on the outgoing side detects that the trolley has been pushed out, and the sensor on the outgoing side is automatically closed, the trolley pusher continues to push the trolley, the sensor on the incoming side detects that the trolley has completely entered, and the sensor on the incoming side is automatically closed, the safety door of the rocking platform is closed, and the operation is completed.

Claims

1. An intelligent electric car stopper in a mine car tank, comprising a car stopper component, the car stopper component comprising a car stopper hook that can fix the mine car, the car stopper hook is connected to an electric push rod transmission mechanism, and is characterized in that: The electric push rod transmission mechanism includes an electric push rod housing, in which an electric push rod is arranged, a piston rod of the electric push rod is hinged to a rotating swing arm, the rotating swing arm is fixedly arranged on the central axis, and the rotating swing arm can rotate together with the central axis; The central axis is fixedly provided with left and right piston rod connecting pieces, one end of which is hinged with a piston rod hinge seat, the piston rod hinge seat is provided at the end of the right piston rod, the left and right piston rod connecting pieces are hinged to the right piston rod through the piston rod hinge seat, the right piston rod is provided with a piston rod hook-shaped piece, and the piston rod hook-shaped piece is hinged to the hook-shaped part of the anti-vehicle hook through the anti-vehicle hook hinge shaft; It also includes a mine car position monitoring sensor and a car blocker position real-time monitoring sensor arranged on both sides of the track; the electric push rod transmission mechanism is electrically connected to a PLC locking linkage control system, and the PLC locking linkage control system is electrically connected to a handheld wireless remote control.

2. The intelligent electric car arrester in the mine car tank according to claim 1 is characterized by: The motion stroke S of the electric push rod can be calculated by the following formula: S=Smin+(Smax−Smin)⋅FmaxF Wherein: S is the actual stroke of the electric push rod; Smin is the minimum stroke of the electric push rod; Smax is the maximum stroke of the electric push rod; F is the force acting on the electric push rod; Fmax is the maximum force that the electric push rod can withstand.

3. The intelligent electric car arrester in the mine car tank according to claim 2 is characterized by: The maximum thrust, Fpush and maximum pulling force, Fpull of the electric push rod are 200kg and 170kg respectively. ΔL is the stroke adjustment, ranging from 0-100mm, and the optimal value is 50mm. The maximum thrust, Fpush and maximum pulling force, Fpull of the electric push rod are 200kg and 170kg respectively. The maximum speed, v, of the electric push rod is 160mm / s, and the opening and closing time is less than 1s.

4. The intelligent electric car arrester in the mine car tank according to claim 2 is characterized in that: Install high-sensitivity light curtain sensors at appropriate positions on both sides of the inner wall of the cage; judge whether the mine car has moved in place by the blocking time of the mine car and the number of light curtain actions; the response time T of the sensor can be calculated by the following formula: sensor response time T=D / v min , where D is the minimum width of the minecart, ranging from 0.5-1.5m, and the optimal value is 1m; v min It is the minimum movement speed of the minecart, ranging from 0.1-0.5m / s, and the optimal value is 0.3m / s.

5. The intelligent electric car arrester in the mine car tank according to claim 2 is characterized by: The effective distance R of wireless remote control is: ; Where Pt is the transmit power, ranging from 1-5W, with an optimal value of 3W; Gt is the transmit antenna gain, ranging from 3-8dBi, with an optimal value of 5dBi; Gr is the receive antenna gain, ranging from 3-8dBi, with an optimal value of 5dBi; λ is the wavelength, assuming the 2.4GHz frequency band is used, the wavelength is approximately 0.125m; P min is the minimum receive power, ranging from -90dBm to -70dBm, with the optimal value being -80dBm.

6. The intelligent electric car arrester in the mine car tank according to claim 2 is characterized by: A middle car-blocking member swinging plate is fixedly arranged on the central shaft, and a car-blocking plate is fixedly arranged on the end of the middle car-blocking member swinging plate.

7. The intelligent electric car arrester in the mine car tank according to claim 6 is characterized by: The middle car-blocking member swing plate and the left and right piston rod connecting members are arranged at intervals.

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