CN216546136U

CN216546136U - Emergency braking system of trackless rubber-tyred vehicle with mining electric-control explosion-proof diesel engine

Info

Publication number: CN216546136U
Application number: CN202122675300.8U
Authority: CN
Inventors: 吴珊; 陈甲尉; 吴春良
Original assignee: Jiangyin Carriage Machine Co ltd
Current assignee: Jiangyin Carriage Machine Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-17
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses an emergency braking system of a trackless rubber-tyred vehicle with a mining electric-control explosion-proof diesel engine, which comprises a wet brake; a piston main body is installed on one side of the wet brake, hydraulic oil is filled in the piston main body, one end of the piston main body is connected with a pressure pump through a first guide pipe, the input end of the pressure pump is connected with a gas tank through a three-way pipe, a first gas storage cavity and a second gas storage cavity are arranged in the gas tank, and the input end of the three-way pipe is communicated with the output ends of the bottoms of the first gas storage cavity and the second gas storage cavity; the first gas storage cavity and the second gas storage cavity are arranged in the gas tank, the first gas storage cavity and the second gas storage cavity are matched with the three-way pipe, the booster pump, the first guide pipe, the second guide pipe and the third guide pipe to form two independent gas loops, and as long as one of the two pneumatic loops can normally operate, the normal operation of a braking system can be ensured, and the reliability of the operation of the system is improved.

Description

Emergency braking system of trackless rubber-tyred vehicle with mining electric-control explosion-proof diesel engine

Technical Field

The utility model relates to the technical field of ships, in particular to an emergency braking system for a trackless rubber-tyred vehicle with an electronic control explosion-proof diesel engine for mines.

Background

The electrically controlled explosion-proof diesel engine trackless rubber-tyred vehicle is a vehicle commonly used in mining areas, the traffic safety of coal mine roadways depends on the safety performance of the explosion-proof trackless rubber-tyred vehicle, and the safety performance of the explosion-proof trackless rubber-tyred vehicle depends on the emergency braking system of the vehicle.

The emergency braking system of the trackless rubber-tyred vehicle with the existing mining electric-control explosion-proof diesel engine has the following defects:

1. the conventional emergency braking system of the trackless rubber-tyred vehicle with the electrically-controlled explosion-proof diesel engine for the mine generally adopts hydraulic braking, and although a full-hydraulic braking mode can provide a large braking force, hydraulic oil has resistance when flowing in a rubber tube, so that the whole braking process has certain delay, and the delay is more obvious particularly under the condition of cold climate.

2. The conventional emergency braking system of the trackless rubber-tyred vehicle with the mining electric-control explosion-proof diesel engine usually works by using a single gas tank, so that only one gas loop exists, and when the single loop breaks down, the braking system cannot work normally, so that the phenomenon of brake failure is easily caused, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an emergency braking system for a trackless rubber-tyred vehicle with a mining electric-control explosion-proof diesel engine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an emergency braking system of a trackless rubber-tyred vehicle with an electronic control explosion-proof diesel engine for mines comprises a wet brake; a piston main body is installed on one side of the wet brake, hydraulic oil is filled in the piston main body, one end of the piston main body is connected with a pressure pump through a first guide pipe, the input end of the pressure pump is connected with a gas tank through a three-way pipe, a first gas storage cavity and a second gas storage cavity are arranged in the gas tank, the input end of the three-way pipe is communicated with the output ends of the bottoms of the first gas storage cavity and the second gas storage cavity, a second electromagnetic valve and a fourth electromagnetic valve are arranged at the positions, corresponding to the output ends of the bottoms of the first gas storage cavity and the second gas storage cavity, of the input end of one side of the first gas storage cavity is communicated with the output end of the tail end of the piston main body through a second guide pipe, a third electromagnetic valve is arranged at one end, close to the piston main body, of the input end of one side of the second gas storage cavity is communicated with the output end of the tail end of the piston main body through a third guide pipe, and a fifth electromagnetic valve is arranged at one end of the third conduit close to the piston main body.

Preferably, an alarm assembly is arranged at one end, close to the gas tank, of the surface of the second conduit and the surface of the third conduit, and the alarm assembly comprises a low-pressure switch and a buzzer.

Preferably, the detection end of the low-pressure switch is located inside the second conduit, and one side of the low-pressure switch is electrically connected with the buzzer through a lead.

Preferably, the piston main body comprises a first inner cavity, a second inner cavity, a piston rod and a spring, the piston rod is installed inside the second inner cavity, and the spring is arranged inside the first inner cavity.

Preferably, the first inner cavity is communicated with the wet brake, the spring is located at the front end of the piston rod, and the hydraulic oil is located at the front end of the first inner cavity.

Preferably, the piston rod comprises a push rod and a push plate, the push rod is located inside the second inner cavity, and the front end of the push rod is connected with the push plate.

Preferably, the diameter of the push plate is matched with that of the first inner cavity, and the diameter of the push rod is matched with that of the second inner cavity.

Preferably, a rubber ring is arranged on the periphery of the push plate and is in contact with the inner wall of the first inner cavity.

Preferably, the front end of the second inner cavity is provided with an oil seal, the front end of the first inner cavity is provided with a limiting ring, one end of the spring is connected with the limiting ring, and the other end of the spring is connected with one side of the piston rod.

Preferably, the top of the gas tank is provided with a connecting port at a position corresponding to the first gas storage cavity and the second gas storage cavity, and the surface of the connecting port is provided with a first electromagnetic valve.

Compared with the prior art, the utility model has the beneficial effects that:

1. the pneumatic transmission hydraulic brake adopts the structures of the gas tank, the pressure pump and the like to be matched with the piston main body for braking, the structures of the gas tank, the pressure pump and the like are pneumatic transmission components, hydraulic oil in the piston main body is pushed into the wet brake under the pneumatic action to realize the braking effect, and gas does not have resistance when flowing in a pipeline, so that no delay exists.

2. The first gas storage cavity and the second gas storage cavity are arranged in the gas tank, the first gas storage cavity and the second gas storage cavity are matched with the three-way pipe, the booster pump, the first guide pipe, the second guide pipe and the third guide pipe to form two independent gas loops, and as long as one of the two pneumatic loops can normally operate, the normal operation of a braking system can be ensured, and the reliability of the operation of the system is improved.

Drawings

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

FIG. 2 is an enlarged schematic view of the utility model at A of FIG. 1;

FIG. 3 is an enlarged schematic view of the present invention at B of FIG. 1;

fig. 4 is an enlarged schematic view of the utility model at C in fig. 1.

In the figure: 1. a wet brake; 2. a piston body; 201. a first lumen; 202. a second lumen; 203. a piston rod; 204. a push rod; 205. pushing the plate; 206. a rubber ring; 207. oil sealing; 208. a spring; 209. hydraulic oil; 2010. a limiting ring; 3. a first conduit; 4. a pressure pump; 5. a three-way pipe; 6. a gas tank; 601. a connecting port; 602. a first solenoid valve; 7. a first gas storage chamber; 701. a second solenoid valve; 702. a second conduit; 703. a third electromagnetic valve; 8. a second gas storage chamber; 801. a fourth solenoid valve; 802. a third conduit; 803. a fifth solenoid valve; 9. an alarm component; 901. a low pressure switch; 902. a buzzer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an embodiment of the present invention is shown: an emergency braking system of a trackless rubber-tyred vehicle with an electronic control explosion-proof diesel engine for mines comprises a wet brake 1; a piston main body 2 is arranged at one side of a wet brake 1, hydraulic oil 209 is filled in the piston main body 2, one end of the piston main body 2 is connected with a pressure pump 4 through a first conduit 3, the input end of the pressure pump 4 is connected with a gas tank 6 through a three-way pipe 5, a first gas storage cavity 7 and a second gas storage cavity 8 are arranged in the gas tank 6, the input end of the three-way pipe 5 is communicated with the output ends at the bottoms of the first gas storage cavity 7 and the second gas storage cavity 8, a second electromagnetic valve 701 and a fourth electromagnetic valve 801 are arranged at the positions corresponding to the input end of the three-way pipe 5 and the output ends at the bottoms of the first gas storage cavity 7 and the second gas storage cavity 8, the input end at one side of the first gas storage cavity 7 is communicated with the output end at the tail end of the piston main body 2 through a second conduit 702, a third electromagnetic valve 703 is arranged at one end of the second conduit 702 close to the piston main body 2, the input end at one side of the second gas storage cavity 8 is communicated with the output end at the tail end of the piston main body 2 through a third conduit 802, a fifth electromagnetic valve 803 is arranged at one end of the third conduit 802 close to the piston main body 2;

specifically, as shown in fig. 1 and 3, the pressure pump 4, the second solenoid valve 701, the third solenoid valve 703, the fourth solenoid valve 801 and the fifth solenoid valve 803 are connected to an external controller, when the device is used, an external person mainly controls the device through a brake pedal, when the device is used, firstly, compressed gas is generated in the first air storage chamber 7 and the second air storage chamber 8 through the air compression pump, when the person needs to perform emergency braking, the person steps on the brake pedal, at this time, the second solenoid valve 701 and the fourth solenoid valve 801 are opened, the third solenoid valve 703 and the fifth solenoid valve 803 are closed, at this time, gas in the first air storage chamber 7 and the second air storage chamber 8 enters the pressure pump 4 through the three-way pipe 5, the pressure pump 4 transmits the gas to the piston main body 2 through the first conduit 3, the piston main body 2 pushes hydraulic oil 209 in the wet brake 1 to generate hydraulic pressure, then the brake pad in the wet brake 1 can cling to a vehicle disc to realize emergency braking under the action of hydraulic pressure, when braking is finished, a person releases a brake pedal, at the moment, the second electromagnetic valve 701 and the fourth electromagnetic valve 801 are closed, the third electromagnetic valve 703 and the fifth electromagnetic valve 803 are closed, the booster pump 4 also stops working, gas in the piston main body 2 flows back to the first gas storage cavity 7 and the second gas storage cavity 8 through the second conduit 702 and the third conduit 802 respectively, then the piston main body 2 resets, hydraulic oil 209 flows back to the piston main body 2 again, at the moment, the brake pad in the wet brake 1 loses hydraulic pressure and resets, so that the vehicle can normally run, in the working process of the device, the first gas storage cavity 7, the three-way pipe 5, the booster pump 4, the first conduit 3, the piston main body 2 and the second conduit 702 are an independent gas loop, and the second gas storage cavity 8, The three-way pipe 5, the booster pump 4, the first conduit 3, the piston main body 2 and the third conduit 802 are independent gas circuits, so that when one of the gas circuits fails, the other gas circuit can normally operate, normal operation of a brake system can be guaranteed, and reliability of operation of the system is improved.

Further, an alarm assembly 9 is mounted at one end of the surfaces of the second conduit 702 and the third conduit 802 close to the gas tank 6, and the alarm assembly 9 comprises a low pressure switch 901 and a buzzer 902;

further, the detection end of the low pressure switch 901 is located inside the second conduit 702, and one side of the low pressure switch 901 is electrically connected with the buzzer 902 through a wire;

specifically, as shown in fig. 1 and 2, the low-voltage pressure switch 901 is connected to an external power source through a wire, when the low-voltage pressure switch 901 detects that the internal pressure of the second conduit 702 and the third conduit 802 is lower than a rated safety pressure, the disc in the sensor instantaneously moves, the switch joint is pushed to be connected through the connecting guide rod, the buzzer 902 is powered on to send out an alarm, when the internal pressure of the second conduit 702 and the third conduit 802 rises to a rated recovery value, the disc instantaneously resets, the switch automatically resets (i.e., is disconnected), and the buzzer 902 is powered off and cannot alarm, so the alarm assembly 9 is mainly used for safely monitoring the pressure in two gas circuits in the device.

Further, the piston main body 2 comprises a first inner cavity 201, a second inner cavity 202, a piston rod 203 and a spring 208, the piston rod 203 is installed in the second inner cavity 202, and the spring 208 is arranged in the first inner cavity 201;

further, the first inner cavity 201 is communicated with the wet brake 1, the spring 208 is located at the front end of the piston rod 203, and the hydraulic oil 209 is located at the front end of the first inner cavity 201;

further, the piston rod 203 comprises a push rod 204 and a push plate 205, the push rod 204 is located inside the second inner cavity 202, and the front end of the push rod 204 is connected with the push plate 205;

further, the diameter of the push plate 205 matches the diameter of the first lumen 201, and the diameter of the push rod 204 matches the diameter of the second lumen 202;

specifically, as shown in fig. 1, 3 and 4, after the pressure pump 4 transmits gas into the second inner cavity 202, the push rod 204 is pushed to move forward, at this time, the push plate 205 at the front end of the push rod 204 moves forward together, so as to press the hydraulic oil 209 in the first inner cavity 201, hydraulic pressure is generated, the hydraulic pressure is transmitted to the brake pads in the wet brake 1, the brake pads in the wet brake 1 will cling to the vehicle disc under the action of the hydraulic pressure to realize emergency braking, after the brake pedal is released, the gas in the second inner cavity 202 flows back to the first air storage cavity 7 and the second air storage cavity 8 from the second conduit 702 and the third conduit 802 respectively, at this time, the pressure in the second inner cavity 202 is reduced, then the piston rod 203 is pushed to reset under the action of the spring 208, at this time, the hydraulic pressure on the brake pads in the wet brake 1 is lost by the hydraulic oil 209, and then the brake pads in the wet brake 1 are separated from the vehicle disc, then the vehicle can run normally.

Further, a rubber ring 206 is arranged around the push plate 205, and the rubber ring 206 is in contact with the inner wall of the first inner cavity 201;

specifically, as shown in fig. 4, the rubber ring 206 is used to ensure the sealing performance of the push plate 205 inside the first inner cavity 201, and prevent the hydraulic oil 209 from entering the first inner cavity 201 at the rear side of the push plate 205.

Further, an oil seal 207 is arranged at the front end of the second inner cavity 202, a spacing ring 2010 is arranged at the front end of the first inner cavity 201, one end of the spring 208 is connected with the spacing ring 2010, and the other end of the spring 208 is connected with one side of the piston rod 203;

specifically, as shown in fig. 3 and 4, the oil seal 207 is used to ensure air tightness when the push rod 204 moves in the second cavity 202, so as to avoid the occurrence of air leakage phenomenon, which causes the push rod 204 to be unable to move and causes hydraulic pressure to be generated in the hydraulic oil 209.

Further, a connecting port 601 is arranged at the top of the gas tank 6 at a position corresponding to the first gas storage cavity 7 and the second gas storage cavity 8, and a first electromagnetic valve 602 is arranged on the surface of the connecting port 601;

specifically, as shown in fig. 1, the first solenoid valve 602 is connected to an external controller, the first solenoid valve 602 is opened, the air compressor pump is communicated with the first air storage chamber 7 and the second air storage chamber 8 through the connection port 601, and then the air compressor pump operates to make the first air storage chamber 7 and the second air storage chamber 8 generate compressed air.

The working principle is as follows: when the pneumatic brake device is used, firstly, an outside person controls the pneumatic brake device mainly through a brake pedal, a first electromagnetic valve 602 is opened, the air compressor pump is communicated with the first air storage cavity 7 and the second air storage cavity 8 through a connecting port 601, and then the air compressor pump works to enable the first air storage cavity 7 and the second air storage cavity 8 to generate compressed air;

secondly, when a person needs to perform emergency braking, the person steps on a brake pedal, the second electromagnetic valve 701 and the fourth electromagnetic valve 801 are opened, the third electromagnetic valve 703 and the fifth electromagnetic valve 803 are closed, at the moment, gas in the first gas storage cavity 7 and the second gas storage cavity 8 enters the booster pump 4 through the three-way pipe 5, the gas is transmitted into the second inner cavity 202 by the booster pump 4, the push rod 204 is pushed to move forwards, at the moment, the push plate 205 at the front end of the push rod 204 moves forwards together, so that hydraulic oil 209 in the first inner cavity 201 is extruded, hydraulic pressure is generated, the hydraulic pressure is transmitted to brake pads in the wet brake 1, and the brake pads in the wet brake 1 can cling to a vehicle disc under the action of the hydraulic pressure to realize emergency braking;

finally, when a person releases the brake pedal, the second electromagnetic valve 701 and the fourth electromagnetic valve 801 are closed, the third electromagnetic valve 703 and the fifth electromagnetic valve 803 are closed, the pressure pump 4 also stops working, gas in the second inner cavity 202 flows back to the first air storage cavity 7 and the second air storage cavity 8 from the second guide pipe 702 and the third guide pipe 802 respectively, the pressure of the second inner cavity 202 is reduced, the piston rod 203 is pushed to reset under the action of the spring 208, hydraulic oil 209 loses hydraulic pressure on a brake pad in the wet brake 1, the brake pad in the wet brake 1 is separated from a vehicle disc, and the vehicle can normally run, wherein the first air storage cavity 7, the three-way pipe 5, the pressure pump 4, the first guide pipe 3, the piston main body 2 and the second guide pipe 702 form an independent gas loop in the working process of the device, and the second air storage cavity 8, the three-way pipe 5 and the pressure pump 4, The first conduit 3, the piston body 2 and the third conduit 802 are independent gas circuits, so that when one of the gas circuits fails, the other gas circuit can also normally operate, the normal operation of the brake system can be ensured, and the operation reliability of the system is improved.

The utility model is not described in detail, but is well known to those skilled in the art.

Finally, it is to be noted that: although the present invention has been described in detail with reference to examples, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. An emergency braking system of a trackless rubber-tyred vehicle with a mining electric-control explosion-proof diesel engine comprises a wet brake (1); the method is characterized in that: a piston main body (2) is installed on one side of the wet brake (1), hydraulic oil (209) is filled in the piston main body (2), one end of the piston main body (2) is connected with a pressure pump (4) through a first guide pipe (3), the input end of the pressure pump (4) is connected with a gas tank (6) through a three-way pipe (5), a first gas storage cavity (7) and a second gas storage cavity (8) are arranged in the gas tank (6), the input end of the three-way pipe (5) is communicated with the bottom output ends of the first gas storage cavity (7) and the second gas storage cavity (8), a second electromagnetic valve (701) and a fourth electromagnetic valve (801) are arranged at positions corresponding to the output ends of the bottoms of the first gas storage cavity (7) and the second gas storage cavity (8), the input end of one side of the first gas storage cavity (7) is communicated with the output end of the tail end of the piston main body (2) through a second guide pipe (702), and a third electromagnetic valve (703) is arranged at one end of the second conduit (702) close to the piston main body (2), the input end of one side of the second air storage cavity (8) is communicated with the output end of the tail end of the piston main body (2) through a third conduit (802), and a fifth electromagnetic valve (803) is arranged at one end of the third conduit (802) close to the piston main body (2).

2. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine according to claim 1, characterized in that: an alarm assembly (9) is arranged at one end, close to the gas tank (6), of the surfaces of the second conduit (702) and the third conduit (802), and the alarm assembly (9) comprises a low-pressure switch (901) and a buzzer (902).

3. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine according to claim 2, characterized in that: the detection end of the low-pressure switch (901) is positioned in the second conduit (702), and one side of the low-pressure switch (901) is electrically connected with the buzzer (902) through a conducting wire.

4. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine according to claim 1, characterized in that: the piston main body (2) comprises a first inner cavity (201), a second inner cavity (202), a piston rod (203) and a spring (208), the piston rod (203) is installed inside the second inner cavity (202), and the spring (208) is arranged inside the first inner cavity (201).

5. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine as claimed in claim 4, characterized in that: the first inner cavity (201) is communicated with the wet brake (1), the spring (208) is located at the front end of the piston rod (203), and the hydraulic oil (209) is located at the front end of the first inner cavity (201).

6. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine as claimed in claim 4, characterized in that: the piston rod (203) comprises a push rod (204) and a push plate (205), the push rod (204) is located inside the second inner cavity (202), and the front end of the push rod (204) is connected with the push plate (205).

7. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine as claimed in claim 6, characterized in that: the diameter of the push plate (205) is matched with that of the first inner cavity (201), and the diameter of the push rod (204) is matched with that of the second inner cavity (202).

8. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine as claimed in claim 6, characterized in that: a rubber ring (206) is arranged on the periphery of the push plate (205), and the rubber ring (206) is in contact with the inner wall of the first inner cavity (201).

9. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine as claimed in claim 4, characterized in that: an oil seal (207) is arranged at the front end of the second inner cavity (202), a limiting ring (2010) is arranged at the front end of the first inner cavity (201), one end of a spring (208) is connected with the limiting ring (2010), and the other end of the spring (208) is connected with one side of the piston rod (203).

10. The emergency braking system of the trackless rubber-tyred vehicle with the mining electrically-controlled explosion-proof diesel engine according to claim 1, characterized in that: the top of the gas tank (6) is provided with a connecting port (601) at a position corresponding to the first gas storage cavity (7) and the second gas storage cavity (8), and the surface of the connecting port (601) is provided with a first electromagnetic valve (602).