Stall protection device for mine trackless rubber-tyred vehicle

Abstract

The invention relates to the technical field of mine safety equipment, in particular to a stall protection device for a mine trackless rubber-tyred vehicle, which comprises a left stand column and a right stand column, a left fence is arranged on the left stand column, a right fence is arranged on the right stand column, a left cylinder is fixed in the middle of the left stand column, and a right cylinder is fixed in the middle of the right stand column. A U-shaped steel pipe is inserted into every two steel pipes of the left fence and the right fence, the U-shaped ends of the U-shaped steel pipes are located outside the fences, the two ends of the U-shaped steel pipes are fixed in the steel pipes of the fences and connected with steel wire ropes, and the tail ends of the steel wire ropes are connected with dampers on the roadway ground after the steel wire ropes penetrate out of the fences. The lock hooks can hook the U-shaped steel pipes on the left fence and the right fence. When the mine trackless rubber-tyred vehicle stalls, the mine trackless rubber-tyred vehicle collides with the intercepting nets on the left fence and the right fence, the intercepting nets are separated from the left fence and the right fence under the collision condition, and the stalled mine trackless rubber-tyred vehicle is stopped under the action of the damper.

Description

Technical Field

[0001] The invention relates to the technical field of mine safety equipment, in particular to a stall protection device for a mine trackless rubber-tyred vehicle. Background Art

[0002] In recent years, the use of rubber-tyred vehicles in the mining industry has become a vital auxiliary transportation method for modern mines, particularly in underground coal mines, offering advantages such as efficiency, flexibility, and safety. However, during transportation in inclined or steep lanes, speed loss due to brake failure, gear shift failure, or other mechanical failures can often lead to accidents, resulting in serious property damage and casualties. Therefore, the development of stall-interception devices for mining vehicles (rubber-tyred vehicles and mine cars) is needed to provide strong support for safe mine production. Summary of the Invention

[0003] In order to solve the problem that a trackless rubber-tyred vehicle needs to be intercepted after stalling, the present invention provides a stall protection device for a trackless rubber-tyred vehicle in a mine.

[0004] The present invention is implemented by adopting the following technical scheme: a stall protection device for a trackless rubber-wheeled vehicle in a mine, comprising a left column and a right column, the top and bottom of the left column are respectively fixed with a left mounting plate, the end of the left mounting plate is fixed with a bearing, a fence rod is installed in the bearings in the left mounting plate at the top and bottom of the left column, the rod body of the fence rod is connected with a left fence, an interception net is also inserted into the inside of the left fence, the part of the interception net inserted into the inside of the left fence is connected with a steel wire rope, after the steel wire rope passes through the inside of the left fence, the end thereof is connected to the damper on the ground of the tunnel, the interception net on the left fence is fixedly connected to the end of the lock hook, a cylinder clamp is fixed to the middle part of the left column, a rotating pin is provided at the end of the cylinder clamp, the left cylinder is connected to the rotating pin, the piston rod of the left cylinder is hinged to one end of the fence rod clamp, the other end of the fence rod clamp is connected to the fence rod on the left side, the top of the right column and A pair of clamps are respectively provided at the bottom, and a right mounting plate sleeved on the right column is provided between the two clamps, a bearing is fixed at the end of the right mounting plate, and a waist hole is also provided in the middle of the right mounting plate, and a pin shaft is connected between the two clamps, which passes through the waist hole on the right mounting plate, and a spring is connected between one of the clamps and the right mounting plate, and a fence rod is installed in the bearings in the right mounting plate at the top and bottom of the right column, and the rod body of the fence rod is connected to the right fence, and an interception net is also inserted into the inside of the right fence, and the part of the interception net inserted into the inside of the right fence is connected to a steel wire rope. After the steel wire rope passes through the inside of the right fence, the end is connected to the damper on the ground of the tunnel, and a cylinder clamp is fixed to the middle of the right column, and a rotating pin shaft is provided at the end of the cylinder clamp, and the right cylinder is connected to the rotating pin shaft, and the piston rod of the right cylinder is hinged to one end of the fence rod clamp, and the fence rod clamp is connected to the fence rod on the right side.

[0005] The stall protection device of the present invention is installed and fixed in the tunnel. The left and right fences are in a normally closed state. The hook end of the locking hook can hook the end of the interception net on the right fence, which is located outside the right fence. When the mine trackless rubber-tyred vehicle stalls, the mine trackless rubber-tyred vehicle collides with the interception net on the left and right fences. The interception net detaches from the left and right fences during the collision, and the stalled mine trackless rubber-tyred vehicle is stopped by the action of the damper.

[0006] The above-mentioned stall protection device for trackless rubber-tyred vehicles in mines comprises a left fence including a plurality of even-numbered steel pipes distributed in sequence from top to bottom in the vertical direction, and the plurality of steel pipes are connected by vertical pipes to form the left fence, and a right fence including a plurality of even-numbered steel pipes distributed in sequence from top to bottom in the vertical direction, and the plurality of steel pipes are connected by vertical pipes to form the right fence.

[0007] The above-mentioned stall protection device for trackless rubber-tyred vehicles in mines, the intercepting net is a U-shaped steel pipe, a U-shaped steel pipe is inserted into every two steel pipes of the left fence, the U-shaped end of the U-shaped steel pipe is outside the left fence, the two ends of the U-shaped steel pipe are inside the steel pipe of the left fence and fixed, the two ends of the U-shaped steel pipe are connected to the wire rope, a U-shaped steel pipe is inserted into every two steel pipes of the right fence, the U-shaped end of the U-shaped steel pipe is outside the right fence, the two ends of the U-shaped steel pipe are inside the steel pipe of the right fence and fixed, the two ends of the U-shaped steel pipe are connected to the wire rope.

[0008] The present invention has the following advantages: 1) The steel wire ropes are neatly arranged inside the steel pipes of the fence, and the steel wire ropes are not easily worn. The steel wire ropes are formed into a ring state through the steel pipes, and then form a large closed-loop vehicle blocking net through the locking hooks; 2) After the left and right fences are closed, the right cylinder has a tightening action to prevent the locking hooks from being unhooked, so that the left and right fences can be self-locked and locked, and the rubber-wheeled vehicle can automatically unlock and open the door after stalling; 3) The entire device does not require welding, and the door cabinet can be adjusted left and right, up and down, to adapt to various lanes. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the installation of the left fence and the right fence of the present invention.

[0010] Figure 2 It is a structural schematic diagram of the present invention.

[0011] Figure 3 This is a top view of the left fence and the right fence of the present invention when they are closed.

[0012] Figure 4 This is a top view of the left fence and the right fence of the present invention when intercepting.

[0013] Figure 5 Schematic diagram of the structure of the clamp.

[0014] Figure 6 It is a structural diagram of the right installation disk.

[0015] Figure 7 This is a schematic diagram of the connection between the right cylinder and the fence rod clamp.

[0016] Figure 8 This is a schematic diagram of the position of the clamp and the right mounting plate.

[0017] Figure 9 This is the installation diagram of the right cylinder.

[0018] Figure 10 Schematic diagram of the lock hook's released and locked states, a is the released state, b is the locked state.

[0019] In the figure: 1-left column, 2-right column, 3-left mounting plate, 4-fence rod, 5-left fence, 6-clamp, 7-right mounting plate, 8-waist hole, 9-pin, 10-spring, 11-right fence, 12-cylinder clamp, 13-rotating pin, 14-left cylinder, 15-right cylinder, 16-lock hook, 17-U-shaped steel pipe, 18-steel wire rope, 19-damper, 20-fence rod clamp. DETAILED DESCRIPTION

[0020] The stall protection device for trackless rubber-wheeled vehicles in mines comprises two left and right uprights, which are respectively fixed on the ground of the tunnel. The top and bottom of the left upright 1 are respectively fixed with left mounting plates 3, and the ends of the left mounting plates 3 are fixed with bearings. Fence rods 4 are installed in the bearings in the left mounting plates at the top and bottom of the left upright. The rod body of the fence rod 4 is connected with a left fence 5. The left fence 5 comprises four steel pipes distributed in sequence from top to bottom in the vertical direction. The four steel pipes are connected by vertical pipes to form a left fence. A U-shaped steel pipe 17 is inserted into every two steel pipes of the left fence 5. The U-shaped end of the U-shaped steel pipe 17 is outside the left fence. The two ends of the U-shaped steel pipe 17 are fixed in the steel pipe of the left fence 5, and the two ends of the U-shaped steel pipe 17 are also connected to the steel wire rope 18. The end of the steel wire rope 18 is connected to the damper 19 on the ground of the tunnel. A cylinder clamp 12 is fixed to the middle of the left column 1, and a rotating pin 13 is provided at the end of the cylinder clamp 12. The left cylinder 14 is connected to the rotating pin 13. The piston rod of the left cylinder 14 is hinged to one end of the fence rod clamp 20. The other end of the fence rod clamp 20 is connected to the fence rod 4 on the left. A pair of clamps 6 are respectively provided at the top and bottom of the right column 2. A right mounting plate 7 sleeved on the column is provided between the two clamps 6. A bearing is fixed to the end of 7, and a waist hole 8 is also provided in the middle of the right mounting plate. A pin shaft 9 is connected between the two clamps 6, and the pin shaft 9 passes through the waist hole 8 on the right mounting plate 7. A spring 10 is connected between one of the clamps 6 and the right mounting plate 7. A fence rod 4 is installed in the bearing in the right mounting plate 7 at the top and bottom of the left column. The rod body of the fence rod 4 is connected to the right fence. The right fence 11 includes four steel pipes distributed in sequence from top to bottom in the vertical direction. The four steel pipes are connected by a vertical pipe to form a right fence. A U-shaped steel pipe 17 is inserted into every two steel pipes of the right fence. The U-shaped end of the U-shaped steel pipe 17 is on the outside of the right fence. The two ends of 17 are fixed in the steel pipe of the right fence. The two ends of the U-shaped steel pipe 17 are also connected to the steel wire rope 18. The end of the steel wire rope 18 is connected to the damper 19 on the ground of the tunnel. A cylinder clamp 12 is fixed in the middle of the right column 2. A rotating pin 13 is provided at the end of the cylinder clamp 12. The right cylinder 15 is connected to the rotating pin 13. The piston rod of the right cylinder 15 is hinged to one end of the fence rod clamp 20, and the fence rod clamp 20 is connected to the fence rod 4 on the right side; the U-shaped end of the U-shaped steel pipe 17 on the left fence is fixedly connected to the locking hook 16, and the hook end of the locking hook 16 can hook the U-shaped end of the U-shaped steel pipe 17 on the right fence.

[0021] The stall protection device of the present invention is installed and fixed in the tunnel, and the left fence 5 and the right fence 11 are in the normally closed state, and the hook end of the locking hook 16 hooks the U-shaped end of the U-shaped steel pipe 17 on the right fence (the locking hook 16 is in the locked state). The right mounting plate 7 on the right column 2 is restricted to the first limit position by the pin 9 at this time, and the spring 10 is in the stretched state. When the speed of the mine trackless rubber-wheeled vehicle is normal, the left fence 5 and the right fence 11 need to be opened to allow the mine trackless rubber-wheeled vehicle to pass normally. First, the piston rod of the right cylinder 15 is extended, and the spring 10 drives the right mounting plate 7 to rotate under the action of the restoring force. Due to the restriction of the pin, the right mounting plate 7 rotates to the second limit position. At this time, the spring 10 is in a natural state. During the rotation of the right mounting plate 7, the right fence 11 on the right mounting plate 7 is driven to move to the left. After the right mounting plate 7 rotates to the second limit position, the right fence 11 moves to the leftmost end. At this time, the U-shaped end of the U-shaped steel pipe 17 on the right fence is disengaged. When the right mounting plate 7 reaches the limit position and cannot rotate, the piston rod of the right cylinder 15 extends, driving the fence rod 4 to rotate and driving the right fence 11 to rotate; at the same time as the piston rod of the right cylinder 15 moves, the piston rod of the left cylinder 14 also extends, driving the left fence 5 to rotate through the fence rod 4. After the left fence 5 and the right fence 11 are rotated and opened, the mine trackless rubber-wheeled vehicle can pass normally. When the mine trackless rubber-wheeled vehicle passes, the left fence 5 and the right fence 11 must continue to be closed, and the piston rods of the left cylinder 14 and the right cylinder 15 are retracted at the same time, and the left fence 5 and the right fence 11 rotate at the same time. After returning to the closed position, the piston rod of the right cylinder 15 continues to be retracted for tightening, pulling the right mounting plate 7 to rotate to the first limit position. The spring 10 is in a stretched state again, and the locking hook 16 locks the U-shaped steel pipe 17 on the left fence 5 and the right fence 11 (the locking hook 16 is in a locked state). If the mine trackless rubber-tyred vehicle stalls, the left fence 5 and the right fence 11 are not opened but in a closed state, and the mine trackless rubber-tyred vehicle collides with the U-shaped steel pipe 17 on the left fence 5 and the right fence 11. The U-shaped steel pipe 17 separates from the left fence 5 and the right fence 11 under the collision, and the stalled mine trackless rubber-tyred vehicle is stopped under the action of the damper 19; after the U-shaped steel pipe 17 is reset, the next interception work can be carried out.

[0022] The mine-grade intrinsically safe radar speed sensor monitors the vehicle's speed in real time. If the vehicle exceeds the specified speed and remains in the overspeed state for three seconds (adjustable), the left and right fences 5 and 11 remain closed (the fences are normally closed). If the speed is normal, the cylinder acts as the power actuator to control the left and right fences 5 and 11.

Claims

1. The stall protection device for trackless rubber-tyred vehicles in mines is characterized by: The invention comprises a left column (1) and a right column (2), wherein the top and bottom of the left column (1) are respectively fixed with a left mounting plate (3), the end of the left mounting plate (3) is fixed with a bearing, and a fence rod (4) is installed in the bearing inside the left mounting plate (3) at the top and bottom of the left column, and the rod body of the fence rod (4) is connected to the left fence (5), and an interception net is also inserted into the inside of the left fence (5), and the interception net is connected to the part of the inside of the left fence (5) to connect the steel wire rope (18), and the end of the steel wire rope (18) passes through the inside of the left fence (5) and is connected to the damper on the roadway ground. (19) connection, the interception net on the left fence (5) is fixedly connected to the end of the lock hook (16), a cylinder clamp (12) is fixed to the middle of the left column, and a rotating pin (13) is provided at the end of the cylinder clamp (12). The left cylinder (14) is connected to the rotating pin (13), and the piston rod of the left cylinder (14) is hinged to one end of the fence rod clamp (20), and the other end of the fence rod clamp is connected to the fence rod (4) on the left side. A pair of clamps (6) are respectively provided at the top and bottom of the right column (2), and a sleeve is provided between the two clamps (6). A right mounting plate (7) on the right column (2) is provided with a bearing fixed at the end of the right mounting plate (7). A waist hole (8) is also provided in the middle of the right mounting plate (7). A pin (9) is connected between the two clamps (6). The pin (9) passes through the waist hole (8) on the right mounting plate (7). A spring (10) is connected between one of the clamps (6) and the right mounting plate (7). A fence rod (4) is installed in the bearing inside the right mounting plate at the top and bottom of the right column. The rod body of the fence rod (4) is connected to the right fence (11). The right fence (11) is also plugged in. An intercepting net is provided, and the intercepting net is connected to a steel wire rope (18) at a portion inserted into the inside of the right fence (11). After the steel wire rope (18) passes through the inside of the right fence (11), the end thereof is connected to a damper (19) on the ground of the roadway. A cylinder clamp (12) is fixed to the middle of the right column, and a rotating pin (13) is provided at the end of the cylinder clamp (12). The right cylinder (15) is connected to the rotating pin (13). The piston rod of the right cylinder (15) is hinged to one end of a fence rod clamp (20), and the fence rod clamp (20) is connected to the fence rod (4) on the right side.

2. The stall protection device for a trackless rubber-tyred vehicle for mining according to claim 1, characterized in that: The left fence (5) includes a plurality of even-numbered steel pipes distributed in sequence from top to bottom in the vertical direction, and the plurality of steel pipes are connected by vertical pipes to form the left fence. The right fence (11) includes a plurality of even-numbered steel pipes distributed in sequence from top to bottom in the vertical direction, and the plurality of steel pipes are connected by vertical pipes to form the right fence.

3. The stall protection device for a trackless rubber-tyred vehicle for mining according to claim 2, characterized in that: The interception net is a U-shaped steel pipe (17), wherein a U-shaped steel pipe (17) is inserted into each of the two steel pipes of the left fence (5), the U-shaped end of the U-shaped steel pipe (17) is outside the left fence (5), the two ends of the U-shaped steel pipe are fixed inside the steel pipe of the left fence (5), and the two ends of the U-shaped steel pipe (17) are connected to the steel wire rope (18), and wherein a U-shaped steel pipe (17) is inserted into each of the two steel pipes of the right fence (11), the U-shaped end of the U-shaped steel pipe (17) is outside the right fence (11), the two ends of the U-shaped steel pipe (17) are fixed inside the steel pipe of the right fence, and the two ends of the U-shaped steel pipe (17) are connected to the steel wire rope (18).

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