Movable hidden car arrester for rail transportation

Abstract

The rail system is laid at the bottom of a cage and provides movement guiding for the car arrester, the transmission system is composed of a motor driving chain wheel set, a chain wheel is directly connected with a lead screw and drives a sliding beam to ascend and descend, and the car arresting mechanism is provided with car arresting blocks at the two ends of the sliding beam, stops mine car wheels during ascending and is completely hidden during descending. The device comprises a motor, a speed reducer, a chain wheel group, a screw rod, a sliding beam, a rail, a car stopping block, a bed board, an encoder, a frame, a sliding rail, an inclined rail and a manual device, the motor and the speed reducer drive the lead screw to rotate through the chain wheel set, so that the sliding beam on the lead screw drives the car stopping blocks at the two ends to ascend and descend along with the inclined rail. The device has the advantages of stopping at any position, quick response in action, complete hiding of the stopping block, low maintenance and the like, is more reliable by adopting mechanical transmission ratio hydraulic / pneumatic, and is suitable for severe environments of mines.

Description

Technical Field

[0001] This utility model relates to the field of safety technology for mine hoisting equipment, specifically a movable and concealed car stop for mine cages. It adopts a motor-sprocket-screw drive to achieve precise lifting and lowering of the car stop block, and is suitable for hoisting systems in various mines such as coal mines and metal mines. Background Technology

[0002] Traditional cage stoppers are mostly fixed or manually operated, which have the following problems: 1. Fixed position: cannot adapt to different mine car wheelbases, affecting transportation efficiency; 2. Manual operation: slow response in emergency situations, posing safety hazards; 3. Protruding structure: affects the entry and exit of mine cars, and may even cause collision accidents.

[0003] In existing technologies, some electric vehicle stoppers are driven by hydraulic or pneumatic cylinders, but these suffer from problems such as complex maintenance and susceptibility to oil / air leaks. This invention employs a mechanical transmission method consisting of a motor, sprocket, and lead screw, offering advantages such as simple structure, precise positioning, and convenient maintenance. Utility Model Content

[0004] Technical Solution: This utility model consists of a track system (laid at the bottom of the cage to guide the movement of the car stoppers), a transmission system (a motor drives a sprocket assembly, the sprockets are directly connected to a lead screw, driving the sliding beam to rise and fall), and a car stop mechanism (car stoppers are installed at both ends of the sliding beam, blocking mine car wheels when rising and completely hidden when descending). This utility model includes a motor, reducer, sprocket assembly, lead screw, sliding beam, track, car stoppers, track slab, encoder, frame, slide rail, inclined rail, and manual device. The motor and reducer drive the lead screw to rotate via the sprocket assembly, causing the sliding beam on the lead screw to move the car stoppers at both ends along the inclined rail. The lead screw uses a trapezoidal thread and has a self-locking function; the sliding beam follows the lead screw, moving horizontally along the slide rail, which is bolted to both sides of the frame. In its non-blocking state, the top surface of the car-stopping block is flush with the top surface of the track or slab. Grooves are partially cut into the track, and holes are opened in the track to accommodate the block. The block consists of a support frame and rollers. The main upright plate of the support frame is slidably connected to the sliding beam, and rollers and track wheels are respectively installed at the top and bottom. The rollers are used in conjunction with the track, and the track wheels are used in conjunction with the inclined rail. The upper plate of the support frame is the main force-bearing part directly subjected to impact, and buffer wheels are installed at impact points. The control system includes an encoder and a PLC for precise positioning. The horizontal travel range of the block is L=100~2000mm, the elevation range is H=50~200mm, and the width of the block in the mine car axle direction is B=80~300mm. It is suitable for different mine car models and can block single, double, and triple mine cars, applicable to various mine car operating conditions.

[0005] The innovative points of this utility model are: (1) Motor-sprocket-screw transmission: The motor drives the sprocket group through the reducer, and the sprocket is directly connected to the screw, avoiding the slippage problem of traditional belt transmission; the screw adopts a trapezoidal thread and has a self-locking function to prevent accidental fall. (2) Sliding beam + double car blocking block design: The sliding beam moves horizontally along the slide rail and can stop at any position; the car blocking blocks are symmetrically installed at both ends of the sliding beam to ensure balanced force; when the car blocking blocks rise, they are 50-100mm higher than the rail surface, and when they fall, the top surface is flush with the rail. (3) Hidden structure: After the car blocking blocks fall, they are completely sunk under the paving plate and do not affect the passage of the mine car; the paving plate adopts a detachable design for easy maintenance. (4) Intelligent control system: The encoder is used to accurately locate the position of the sliding beam; it can be connected to the cage PLC control system to realize automated car blocking; it has a manual emergency operation function (manual device).

[0006] The advantages of this utility model are: 1. Arbitrary vehicle blocking: The sliding beam can stop at any position on the track, adapting to different mine cars; 2. Fast response: Motor driven, lifting time ≤2s, superior to hydraulic / pneumatic solutions; 3. Completely concealed: Lowering does not affect the passage of mine cars, avoiding the risk of collision; 4. Low maintenance: Mechanical transmission is more reliable than hydraulic / pneumatic, suitable for harsh mining environments. Attached Figure Description

[0007] Appendix Figure 1 This is a structural diagram of a movable, concealed vehicle stop for rail transport.

[0008] Appendix Figure 2 , Figure 3 This is a schematic diagram of the vehicle stopper in its non-stop state.

[0009] Appendix Figure 4 , Figure 5 This is a schematic diagram of the vehicle stopper in the vehicle stopping state.

[0010] Appendix Figure 6 This is a schematic diagram of a sliding beam.

[0011] Appendix Figure 7 This is a schematic diagram of the track.

[0012] Appendix Figure 8 , Figure 9 This is a schematic diagram of the vehicle blocking block.

[0013] Appendix Figure 10 This is a schematic diagram of the paving.

[0014] Appendix Figure 11 This is a schematic diagram of the framework.

[0015] Appendix Figure 12 This is a schematic diagram of the slide rail.

[0016] Appendix Figure 13 This is a schematic diagram of an inclined rail.

[0017] Appendix Figure 14 This is a schematic diagram of the manual device.

[0018] like Figures 1 to 14 As shown, a movable, concealed vehicle stop for rail transport, embodiment 1, includes a motor 101, a reducer 102, a sprocket assembly 103, a lead screw 104, a sliding beam 105, a track 106, vehicle stop blocks 107, a paving board 108, an encoder 109, a frame 111, a slide rail 112, an inclined rail 113, and a manual device 114. The motor 101 and reducer 102 drive the lead screw 104 to rotate via the sprocket assembly 103, causing the sliding beam 105 on the lead screw 104 to move the vehicle stop blocks 107 at both ends along the inclined rail 113. The lead screw 104 uses a trapezoidal thread and has a self-locking function. The sliding beam 105 moves horizontally along the slide rail 112 with the lead screw 104, and the slide rail 112 is bolted to both sides of the frame 111. In its non-blocking state, the top surface of the wheel-stopping block 107 is flush with the top surface of the paving 108 or the track 106. The track 106 has a partial groove, and the paving 108 has openings to accommodate the wheel-stopping block 107. The wheel-stopping block 107 consists of a bracket and rollers. The main upright plate of the bracket is slidably connected to the sliding beam 105, and roller supports and track wheels are respectively installed at the top and bottom. When the wheel-stopping block 107 is in its non-blocking state, the track wheels rotate along the track groove of the inclined rail 113. In the inner groove of the horizontal section, the wheel-stopping block 107 is in a hidden state. When a signal is received requiring wheel-stopping, the track wheels rotate along the inclined rail 113. The inner groove of the inclined section of rail 113 rotates, causing the car-stopping block 107 to tilt and rise. After rising to the stopping height, the idler roller on the upper part of the car-stopping block 107 contacts the laying plate 108. The idler roller rolls along the upper surface of the laying plate 108 and stops when it reaches the stopping position. The upper plate of the bracket is the main force-bearing part that is directly impacted when stopping the car. A buffer wheel is set at the impact position. The buffer wheel transmits the impact force to the idler roller under the upper plate, and then the laying plate 108 bears the impact force, which can reduce the impact on the car-stopping block 107, sliding beam 105, and lead screw 104. The control system includes an encoder 109 and a PLC to achieve precise positioning.

[0019] Working process: 1. Stopping the car: The control system sends a stopping signal → Motor 101 rotates forward → The sprocket drives the lead screw to rotate → The sliding beam rises → The stopping block extends → Reaches the designated position → Motor 101 shuts off; 2. Resetting: The control system sends a reset signal → The motor reverses → The sprocket drives the lead screw to retract → The stopping block descends and hides → Motor 101 shuts off. Positioning control: The position of the sliding beam is fed back through encoder 109, with an accuracy of ±1mm; Multiple stopping positions can be preset to adapt to different models of mine cars and various mine car working conditions.

[0020] Example 2 is applied to metal mines and humid environments. The lead screw 104 of the wheel stopper in Example 1 is made of stainless steel to prevent corrosion; a waterproof cover 110 is added to protect the motor and sprocket assembly.

[0021] It should be noted that in practical applications, the size, stroke, and elevation of a movable concealed car stop for rail transport need to be designed according to the size of the container and the required shunting distance of the mine car within the container. The horizontal stroke range of the car stop block 107 is L=100~2000mm, the elevation range is H=50~200mm, and the width of the car stop block (107) in the direction of the mine car axle is B=80~300mm. It is suitable for different models of mine cars and can stop single cars, double cars, and triple cars, making it suitable for various mine car operating conditions.

Claims

1. A movable concealed derailleur for rail transport, characterized by: It includes a motor (101), a reducer (102), a sprocket assembly (103), a lead screw (104), a sliding beam (105), a track (106), a stop block (107), a slab (108), an encoder (109), a frame (111), a slide rail (112), a sloping rail (113), and a manual device (114); wherein the motor (101) and the reducer (102) drive the lead screw (104) to rotate through the sprocket assembly (103), so that the sliding beam (105) on the lead screw (104) drives the stop blocks (107) at both ends to rise and fall with the sloping rail (113), and the motor (101), the reducer (102), and the encoder (109) are electrically connected to the control system.

2. A movable concealed derailleur for a railway according to claim 1, characterized in that: The lead screw (104) adopts a trapezoidal thread and has a self-locking function; the sliding beam (105) moves horizontally along the slide rail (112) along the lead screw (104), and the slide rail (112) is fixed to both sides of the frame (111) with bolts.

3. A movable concealed derailleur for a railway according to claim 1, characterized in that: In the non-blocking state, the top surface of the blocking block (107) is flush with the top surface of the paving board (108) or the track (106). The track (106) has a groove and the paving board (108) has a hole to fit the blocking block (107). The blocking block (107) is composed of a bracket and rollers. The main upright plate of the bracket is slidably connected to the sliding beam (105), and rollers and track wheels are respectively set on the upper and lower parts. The rollers are used in conjunction with the paving board (108), and the track wheels are used in conjunction with the inclined rail (113). The upper plate of the bracket is the main force-bearing part that is directly impacted, and a buffer wheel is set at the impact position.

4. A movable concealed derailleur for a railway according to claim 1, characterized in that: The control system includes an encoder (109) and a PLC to achieve precise positioning.

5. A movable concealed derailleur for a railway according to claim 1, characterized in that: The horizontal travel range of the blocking block (107) is L=100~2000mm, the elevation range is H=50~200mm, and the width of the blocking block (107) in the direction of the mine car axle is B=80~300mm. It is suitable for different models of mine cars and can block single cars, double cars, and triple cars, and is suitable for various mine car working conditions.

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