CN215904494U

CN215904494U - Mine inclined shaft safety vehicle blocking device

Info

Publication number: CN215904494U
Application number: CN202122660814.6U
Authority: CN
Inventors: 席政; 席德美; 席燕; 湛娇; 张松
Original assignee: Bijie Emergency Management Service Center
Current assignee: Bijie Emergency Management Service Center
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-02-25
Anticipated expiration: 2031-11-02

Abstract

The utility model provides a mine inclined shaft safe car stopping device which comprises a radar velocimeter, a lifting device, a car stopping net, a limiting device, a buffering device, a depth interlocking switch and a track, wherein the radar velocimeter is arranged on the track; the two sides of the track are sequentially provided with a buffer device and a limiting device along the descending direction of the mine car; the car stopping net is provided with a plurality of flexible steel wire ropes which are distributed up and down, and the flexible steel wire ropes penetrate through the limiting device and are connected with the buffer devices fixedly arranged on the two sides of the track; the center of the flexible steel wire rope is respectively connected with a lifting steel wire rope, and the lifting steel wire rope is connected with a lifting device by bypassing a fixed pulley arranged at the top of the roadway; a radar speed measuring instrument for monitoring the speed of the mine car is further installed in the roadway and is electrically connected with the lifting device; a degree of depth chain switch that is used for monitoring the descending degree of depth of mine car is installed to lifting machine department for promoting the mine car, degree of depth chain switch is connected with elevating gear electricity.

Description

Mine inclined shaft safety vehicle blocking device

Technical Field

The utility model relates to mining equipment, in particular to a mine inclined shaft safety vehicle stopping device.

Background

The conventional inclined shaft car stopping fence is basically a rigid car stopping fence formed by welding waste rails or I-shaped steel into a door, the upper part of the rigid car stopping fence is fixed on a roadway top plate and lifted through a steel wire rope, when the inclined shaft car stopping fence runs, a mine car and the car stopping fence are in direct rigid collision, and meanwhile, the rigid car stopping fence cannot provide a buffer distance for the mine car, so that the mechanical momentum of the mine car is large, the aim of stopping the car is achieved theoretically, but the safety effect is poor, and when the lifted mine car is loaded with objects such as ores, the mine car still flies out and turns on the side under the action of inertia, so that secondary disasters are caused; if the people and the vehicles are lifted, under the action of inertia, the impulse of the human body is still large, the impact received by the human body is basically not weakened, the human body can be thrown out or collided, and serious casualty accidents can still be caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the technical scheme provided by the utility model is as follows:

a mine inclined shaft safe vehicle stopping device is characterized by comprising a radar velocimeter, a lifting device, a vehicle stopping net, a limiting device, a buffer device, a depth interlocking switch and a track; the two sides of the track are sequentially provided with a buffer device and a limiting device along the descending direction of the mine car; the car stopping net is provided with a plurality of flexible steel wire ropes which are distributed up and down, and the flexible steel wire ropes penetrate through the limiting device and are connected with the buffer devices fixedly arranged on the two sides of the track; the center of the flexible steel wire rope is respectively connected with a lifting steel wire rope, and the lifting steel wire rope is connected with a lifting device by bypassing a fixed pulley arranged at the top of the roadway; a radar speed measuring instrument for monitoring the speed of the mine car is further installed in the roadway and is electrically connected with the lifting device; a degree of depth chain switch that is used for monitoring the descending degree of depth of mine car is installed to lifting machine department for promoting the mine car, degree of depth chain switch is connected with elevating gear electricity.

Further, buffer includes the casing, slider and elastic mechanism, the slider with elastic mechanism is located inside the casing, flexible wire rope with slider fastening connection, elastic mechanism's one end and slider fixed connection, the other end with casing fixed connection is equipped with the slide rail in the casing, the slider be equipped with slide rail sliding connection's spout, the slider can be in casing horizontal slip. The elastic mechanism can provide elastic potential to offset the kinetic energy of the accelerated motion of the mine car.

Further, the elastic mechanism is a compression spring, a hydraulic rod or an electric push rod.

Furthermore, the flexible steel wire rope forms a U-shaped structure under the action of the limiting device, and the flexible steel wire rope is woven vertically and horizontally by the steel wire rope at the U-shaped bent part of the U-shaped structure to form a grid.

Furthermore, the limiting device is provided with a sliding groove along the height of the limiting device, and the upper limit of the sliding groove is higher than the height of the mine car when the mine car moves to the position.

Furthermore, the buffer device and the limiting device are fixed with the wall of the roadway through bolts.

Further, an upper computer, a camera and/or an alarm are/is further arranged according to the use requirement, the camera is connected with the upper computer and the radar speedometer, and the radar speedometer and the camera are connected with the upper computer and used for providing the running condition of the mine car to the upper computer for the relevant personnel to check; the alarm is connected with the radar velocimeter.

The utility model has the following effects:

1. the car net and the buffer stop that flexible wire rope formed can avoid the mine car of operation with higher speed to produce the rigidity collision, avoids the mine car to overturn under the inertia effect and avoids the mine car built-in ore departure that has and other harm that bring, the casualties and the economic loss that the reduction mine car sports car accident that is showing caused.

2. The buffer device and the limiting device are fixed with the wall of the roadway through bolts, and the normal daily running of the mine car cannot be obstructed.

3. When the inclined shaft tunnel has no production task or is in a non-working state, the lifting device releases the lifting steel wire rope all the time, and the vehicle stopping device is in a working state, so that the phenomenon that foreign matters at the road junction of the inclined shaft tunnel roll into the inclined shaft tunnel to damage the inclined shaft tunnel is avoided; when the mine car normally operates in the inclined shaft tunnel, the lifting device pulls the car blocking device to be positioned at the top wall of the inclined shaft tunnel, and the interference to the work of the mine car can be avoided.

4. The radar speed measuring instrument and the camera arranged on the inner wall of the inclined shaft tunnel can realize the electronic eye function used in traffic, measure the speed of the mine car in real time, shoot short videos and pictures of the mine car in real time, transmit the short videos and the pictures to an upper computer outside the inclined shaft tunnel, and are favorable for accident reason analysis and follow-up avoidance.

5. The alarm arranged on the inner wall of the inclined shaft tunnel can send out sound and light alarm immediately after a mine car running accident occurs, and sufficient time is provided for operators in the inclined shaft tunnel to avoid in advance.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged schematic view of a limiting device and a buffering device;

FIG. 3 is a side view of the spacing device;

FIG. 4 is a schematic structural view of a car stopping net;

FIG. 5 is a schematic view of the lifting device;

in the figure: 1-a hoisting machine; 2-an alarm; 3-radar velocimeter; 4-a lifting device; 41-a lifting motor; 42-a wire spool; 43-an electronic control system; 5-lifting steel wire ropes; 6-vehicle blocking net; 601-a flexible steel wire rope; 602-a locking buckle; 7-a limiting device; 701-a chute; 8-a buffer device; 801-a housing; 802-a slider; 803-a spring; 804-a slide rail; 9-a fixed pulley; 10-depth interlocking switch, 11-lifting steel wire rope, 12-track, 13-mine car, 14-upper computer and 15-camera.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a track 12 is laid in a mine inclined shaft, and a hoisting machine 1 controls a mine car 13 to run along the track 12 through a hoisting steel wire rope 11; the depth interlocking switch 10 for measuring the descending depth of the mine car is installed at the elevator 1, the depth interlocking switch 10 measures the lowering speed and time of the lifting steel wire rope 11 by using a speed sensor, so that the lowering depth of the lifting steel wire rope is calculated, the result is transmitted to the lifting device 4, and the starting and stopping of the lifting device 4 are controlled. The depth interlock switch 10 can also be measured using radar speed measurement. The method for calculating the length of the rope in the dynamic state is many, and the description is omitted here.

As shown in FIG. 2, the two sides of the track 12 in the descending direction of the mine car are connected with the buffer device 8 through the track reporting direction, the buffer device 8 comprises a shell 801, a sliding block 802 and a spring 803, the sliding block 802 and the spring 803 are positioned inside the shell 801, a sliding rail 804 is arranged in the shell 801, the sliding block 802 is provided with a sliding groove in sliding connection with the sliding rail 804, and the sliding block 802 can horizontally slide along the sliding rail 804 in the shell 801, so that the stability of the sliding block during movement is improved. The flexible steel wire rope 601 is fixedly connected with the sliding block 802 through bolts, one end of the spring 803 is fixedly connected with the sliding block 802, the other end of the spring 803 is fixedly connected with the shell 801, and in the moving process of the sliding block 802, the spring 803 can provide elastic potential to offset the kinetic energy of the accelerated motion of the mine car.

The springs described above can be replaced by hydraulic cylinders or other elastic means, achieving the same or similar effect.

As shown in fig. 2, two symmetrical limiting devices 7 are arranged on two sides of the rail 12 and below the buffer device 8 at a distance, and the limiting devices 7 are fixed with the wall of the roadway through bolts or fixed with the ground outside the rail 12 and the top of the roadway through bolts. The limiting device 7 is provided with a vertical through sliding groove 701 along the height, and the upper limit of the sliding groove is higher than the height of the mine car 13 when the mine car runs to the position.

As shown in fig. 1 and 4, a car stopping net is arranged on the track, the car stopping net 6 is provided with a plurality of strands of flexible steel wire ropes as main body supports, and two ends of each flexible steel wire rope 601 respectively penetrate through a sliding groove 701 of the limiting device 7, are connected to the buffer device 8, and are respectively fixed with the corresponding sliding blocks 802 through bolts. The central point of the flexible steel wire rope 601 is fixedly connected and locked with the lifting steel wire rope 5 in sequence to form a non-slidable locking buckle 602; when the lifting device 4 releases traction force, the locking buckles 602 are spaced at a certain distance in the vertical direction of the space under the action of the gravity of the flexible steel wire rope 601, so that the flexible steel wire ropes 601 are sequentially arranged in the vertical direction; under the common constraint of the buffer device 8 and the limiting device 7, the flexible steel wire rope 601 is provided with a U-shaped opening.

As shown in fig. 5 and 3, a fixed pulley 9 is installed at the top of the roadway 5, the position of the fixed pulley 9 is deviated a distance in the opposite direction of the mine car advancing direction relative to the U-shaped bottom end of the car stopping net, and the lifting steel wire rope is connected with the lifting device 4 after passing through the fixed pulley; the lifting device 4 comprises a lifting motor 401, a wire spool 402 and an electric control system 403; the wire spool 402 is rotatably connected with a support fixed on the ground, the wire spool 402 is driven by an output shaft of the lifting motor 401, and a main component of an electric control system 403 of the lifting motor 401 is a PLC (programmable logic controller) which is connected with the depth interlock switch 10 and the radar velocimeter. When the mine car 13 does not pass through, the lifting steel wire rope is in a tensioned state, two sides of the car stopping net 6 are restrained by the buffer device 8 and the limiting device 7, the bottom of the car stopping net is close to the track, and under the upward traction effect of the lifting steel wire rope, the car stopping net 6 is upwards expanded to be ready for stopping stalled vehicles at any time.

In the normal running process of the mine car, the depth interlocking switch 10 calculates the length of the lifting steel wire rope 11, so that the descending depth of the mine car is judged, and the depth interlocking switch 10 transmits data to the PLC through a data line. Simultaneously the descending speed of radar tachymeter 3 monitoring mine car, according to the monitoring demand, can set up a plurality ofly along the mine car traffic direction at radar tachymeter 3, the radar tachymeter gives PLC with the speed data of mine car, if the speed of a motor vehicle is normal, and the descending degree of depth of mine car reaches the upper limit that PLC set up, PLC makes elevator motor 41 rotate and receives the rope, the mine car distance blocks car net 6 this moment and has one section distance, this section distance makes elevator motor 41 have sufficient time upwards to mention lift wire rope, thereby the bottom that will block car net 6 promotes to the height that is higher than the mine car. After the mine car passes through, the PLC controls the lifting motor 41 to rotate reversely according to the descending depth of the mine car, the lifting steel wire rope 5 is released, the flexible steel wire rope 601 moves downwards along the sliding groove 701 of the limiting device 7 under the action of the gravity of the flexible steel wire rope 601, and as the middle point of the flexible steel wire rope 601 and the lifting steel wire rope 5 are fixed at intervals through the locking buckle 602, a plurality of flexible steel wire ropes 601 are rapidly opened to form a U-shaped opening car stopping device, and the car stopping state is recovered.

In the continuous high-strength working process of the mine car, the traction steel wire rope is aged or the hook bolt is dropped off and other unpredictable objective factors, so that the mine car running accident is caused. After a car-running accident occurs, the mine car moves to the bottom of the inclined shaft tunnel along the acceleration of the track under the action of gravity, and a radar velocimeter 3 arranged on the inner wall of the inclined shaft tunnel captures the speed information of the mine car movement and converts the speed information into an electronic signal to transmit a PLC (programmable logic controller) through a signal line; the PLC analyzes the electronic signal and sends an operation instruction to the lifting motor 41 after judging the speed abnormality through a logic program; if the car stopping net 6 is in the intercepting state, the lifting motor 41 does not work, so that the car stopping net is kept in the car stopping state, after the mine car contacts the car stopping device 6, the kinetic energy of the accelerated mine car drives the car stopping device 6 to move forwards, the flexible steel wire rope 601 of the car stopping device 6 drives the sliding block 802 inside the elastic device 8 to slide along the track direction of the mine car and continuously compress the spring 803, the spring 803 accumulates elastic potential energy in the compression process to form a reaction force, the reaction force converts the kinetic energy of the mine car into the elastic potential energy to be consumed, and the spring 803 has a certain length, so that the mine car can be decelerated slowly to stop moving, and the purpose of stopping the mine car with the car sliding accident is achieved.

According to the use demand, a camera 15 can be further installed in the roadway and used for monitoring the running state of the mine car, when the radar speed measuring instrument 3 monitors that the speed of the mine car is abnormal, the camera 15 works to record videos, and the data of the radar speed measuring instrument 3, the depth interlocking switch 10 and the camera 15 are transmitted to the upper computer 14 and used for analyzing accidents.

In order to remind workers in the roadway, the roadway can be further provided with the alarm 2, when the radar speed measuring instrument 3 monitors that the speed of the mine car is abnormal, the alarm 2 can give an audible and visual alarm to remind nearby workers to avoid. Alarm 2 installs on inclined shaft tunnel inner wall, preferably installs in inclined shaft tunnel roof, more preferably installs in the next door of radar velocimeter 3, reduces the signal line installation degree of difficulty.

Elevating gear 4 is located 3 below of radar velocimeter, and fixed mounting in inclined shaft tunnel brings the damage for elevating gear 4 in order to avoid the ore to drop, can with elevating gear 4 is fixed in track one side in the inclined shaft tunnel.

The spring 803 in the buffer device 8 can be replaced by a hydraulic oil cylinder or an electric push rod, and the hydraulic oil cylinder or the electric push rod can effectively convert the kinetic energy of the mine car into elastic potential energy for consumption, so that the function of buffering the running of the mine car until the mine car stops moving is realized, and the danger caused by the mine car turning and the ore flying under the inertia effect is obviously reduced.

The end of the flexible steel wire rope 601 can also be connected with the sliding block 802 in the buffer device 8 through integral forming, so that the binding force between the flexible steel wire rope 601 and the sliding block 802 is further improved, and the end of the flexible steel wire rope 601 is prevented from falling off.

According to the actual length and gradient of the inclined shaft tunnel, a plurality of mine inclined shaft safety vehicle blocking devices can be arranged in the inclined shaft tunnel.

The PLC is a programmable logic controller, a digital operation controller with a microprocessor for automatic control, and can load control instructions into a memory at any time for storage and execution. The programmable controller consists of functional units such as a CPU, an instruction and data memory, an input/output interface, a power supply, a digital-analog converter and the like. The structure and principle thereof are known in the art and are not described in detail herein.

The host computer is a commercially available computer.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. A mine inclined shaft safe vehicle stopping device is characterized by comprising a radar velocimeter, a lifting device, a vehicle stopping net, a limiting device, a buffer device, a depth interlocking switch and a track; the two sides of the track are sequentially provided with a buffer device and a limiting device along the descending direction of the mine car; the car stopping net is provided with a plurality of flexible steel wire ropes which are distributed up and down, and the flexible steel wire ropes penetrate through the limiting device and are connected with the buffer devices fixedly arranged on the two sides of the track; the center of the flexible steel wire rope is respectively connected with a lifting steel wire rope, and the lifting steel wire rope is connected with a lifting device by bypassing a fixed pulley arranged at the top of the roadway; a radar speed measuring instrument for monitoring the speed of the mine car is further installed in the roadway and is electrically connected with the lifting device; a degree of depth chain switch that is used for monitoring the descending degree of depth of mine car is installed to lifting machine department for promoting the mine car, degree of depth chain switch is connected with elevating gear electricity.

2. The mine inclined shaft safety vehicle stopping device as defined in claim 1, wherein the buffering device comprises a shell, a sliding block and an elastic mechanism, the sliding block and the elastic mechanism are located inside the shell, the flexible steel wire rope is fixedly connected with the sliding block, one end of the elastic mechanism is fixedly connected with the sliding block, the other end of the elastic mechanism is fixedly connected with the shell, and the sliding block is horizontally connected with the shell in a sliding manner.

3. The mine inclined shaft safety vehicle stopping device as defined in claim 2, wherein the elastic mechanism is a compression spring, a hydraulic rod or an electric push rod.

4. The mine inclined shaft safety vehicle stopping device as defined in any one of claims 1 to 3, wherein the flexible steel wire rope forms a U-shaped structure under the action of the limiting device, and the flexible steel wire rope is woven in a criss-cross mode at the U-shaped bent part of the U-shaped structure to form a grid.

5. A mine slope safety vehicle stopping device according to any one of claims 1 to 3, wherein the limiting device is provided with a chute along the height thereof, and the upper limit of the chute is higher than the height of the mine car when the mine car travels to the chute.

6. The mine inclined shaft safety vehicle stopping device as defined in any one of claims 1 to 3, wherein the buffer device and the limiting device are fixed with the wall of the roadway through bolts.

7. The mine inclined shaft safety vehicle stopping device according to claim 1, which is characterized by further comprising an upper computer, wherein the upper computer is electrically connected with the radar velocimeter.

8. The mine inclined shaft safety vehicle stopping device according to claim 7, wherein a camera is installed in the roadway and electrically connected with the radar speed measuring instrument and an upper computer.

9. The mine inclined shaft safety vehicle stopping device according to claim 7, wherein an alarm is installed in the roadway and electrically connected with the radar velocimeter.