CN217864090U - Emergency braking device and mining dump truck - Google Patents
Emergency braking device and mining dump truck Download PDFInfo
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- CN217864090U CN217864090U CN202222222453.1U CN202222222453U CN217864090U CN 217864090 U CN217864090 U CN 217864090U CN 202222222453 U CN202222222453 U CN 202222222453U CN 217864090 U CN217864090 U CN 217864090U
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- eddy current
- emergency braking
- vehicle
- current retarder
- braking device
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Abstract
The utility model relates to a vehicle engineering technical field discloses an emergency braking device and mining dump truck. The emergency braking device comprises an electromagnetic valve, a relay valve, an eddy current retarder controller and an eddy current retarder. One end of the relay valve is connected with the electromagnetic valve, and the other end of the relay valve is connected with a brake air chamber of the axle; the electric eddy current retarder controller is connected to the electric eddy current retarder, and the electric eddy current retarder is connected to the transmission shaft of axle, and the electric eddy current retarder can exert braking force to the transmission shaft. The utility model discloses carry out multi-channel braking to the axle through solenoid valve, relay valve, eddy current retarder controller and eddy current retarder, improve the braking performance and the security performance of axle, improve the security of vehicle; meanwhile, an eddy current retarder is adopted for braking, and the brake system has the advantages of economy, environmental protection, stability and comfort.
Description
Technical Field
The utility model relates to a vehicle engineering technical field especially relates to an emergency braking device and mining dump truck.
Background
Along with the development requirement of carbon peak carbon neutralization of China, the requirements of energy conservation and emission reduction in the field of mining vehicles are more and more strict, the new energy mining vehicle is popular in the mining industry due to zero emission and high energy conservation, and because most mining areas are heavy-load downhill working conditions, emergency braking under the condition of heavy load of the mining vehicle has the condition of insufficient braking force, and safety accidents are easily caused.
Accordingly, there is a need for an emergency braking device and a mining dump truck to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Based on above, an object of the utility model is to provide an emergency braking device and mining dump truck have improved the brake performance and the security performance of vehicle.
In order to achieve the purpose, the utility model adopts the following technical proposal:
in one aspect, there is provided an emergency braking apparatus including:
an electromagnetic valve;
the relay valve, one end of it is connected to the said electromagnetic valve, another end is connected to the brake air chamber of the axle;
the electric eddy current retarder controller is connected to the electric eddy current retarder, the electric eddy current retarder is connected to a transmission shaft of the axle, and the electric eddy current retarder can apply braking force to the transmission shaft.
The emergency brake device further comprises a brake foot valve, and one end of the brake foot valve is connected to the relay valve.
As a preferred technical scheme of the emergency braking device, the emergency braking device further comprises a motor control module, wherein the motor control module comprises a motor and an MCU, and the MCU is electrically connected with the whole vehicle controller and the motor.
As a preferred technical scheme of the emergency braking device, the emergency braking device further comprises an alarm device, and the alarm device is electrically connected with the vehicle control unit.
As a preferred technical scheme of the emergency braking device, the alarm device comprises a voice alarm module and/or a sound-light alarm module.
The emergency braking device further comprises an inclination angle sensor, wherein the inclination angle sensor is electrically connected to the vehicle control unit and is used for detecting the gradient of a road surface where the vehicle is located.
The emergency braking device further comprises a front radar which is electrically connected with the vehicle control unit and used for detecting the distance between the vehicle and a front obstacle.
The emergency braking device further comprises a power battery module, wherein the power battery module is electrically connected to the vehicle control unit, is used for supplying power to the vehicle, and can recover energy when the vehicle brakes.
As a preferred technical scheme of the emergency braking device, the electromagnetic valve is an ASR electromagnetic valve.
On the other hand, the mining dump truck is provided and comprises the emergency braking device in any one of the above schemes.
The beneficial effects of the utility model are that:
the utility model provides an emergency braking device and mining dump truck, when vehicle control unit received emergency braking signal, on the one hand, the solenoid valve received vehicle control unit's first signal, and the solenoid valve control relay valve passageway, and the relay valve ventilates rapidly to the brake chamber in, has realized the emergency braking to the axle; on the other hand, the controller of the eddy current retarder receives a second signal of the vehicle control unit, and controls the eddy current retarder to apply braking force to a transmission shaft of the axle, so that emergency braking of the axle is realized again. The utility model discloses through solenoid valve and relay valve to the axle emergency braking, carry out emergency braking to the axle through eddy current retarder controller and eddy current retarder simultaneously, the axle receives the braking of multichannel, improves the braking performance and the security performance of axle, improves the security of vehicle; meanwhile, an eddy current retarder is adopted for braking, and the brake system has the advantages of economy, environmental protection, stability and comfort.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic view of an emergency braking apparatus according to an embodiment of the present invention.
The figures are labeled as follows:
1. a vehicle control unit; 2. an electromagnetic valve; 3. a relay valve; 4. an axle; 41. a brake chamber; 5. an eddy current retarder controller; 6. an eddy current retarder; 7. a brake foot valve; 8. a motor control module; 9. an alarm device; 10. a tilt sensor; 11. a front radar; 12. and a power battery module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to 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 only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the embodiment provides a mining dump truck, which includes an emergency braking device, where the emergency braking device includes an electromagnetic valve 2, a relay valve 3, an eddy current retarder controller 5, and an eddy current retarder 6.
Specifically, one end of the relay valve 3 is connected to the electromagnetic valve 2, and the other end is connected to the brake chamber 41 of the axle 4; the electric eddy current retarder controller 5 is connected to the electric eddy current retarder 6, the electric eddy current retarder 6 is connected to the transmission shaft of the axle 4, and the electric eddy current retarder 6 can apply braking force to the transmission shaft. The emergency braking device further comprises a Vehicle Control Unit (VECU) 1, and the eddy current retarder controller 5 and the electromagnetic valve 2 are electrically connected to the Vehicle Control Unit 1. It should be noted that, eddy current retarder controller 5 and solenoid valve 2 all electrically connect in vehicle control unit 1, and the electricity here is connected through the cable and also can be through wifi signal or bluetooth signal wireless connection, and the connected mode of eddy current retarder controller 5 and solenoid valve 2 and vehicle control unit 1 here to and the connected mode of eddy current retarder controller 5 and eddy current retarder 6 are the conventional connected means in control field, need not the repeated description here.
When the vehicle controller 1 receives an emergency braking signal, on one hand, the electromagnetic valve 2 receives a first signal of the vehicle controller 1, the electromagnetic valve 2 controls the relay valve 3 to be communicated, the relay valve 3 rapidly ventilates the brake air chamber 41 to promote the vehicle to generate friction braking, and the emergency braking of the vehicle axle 4 is realized; on the other hand, the eddy current retarder controller 5 receives a second signal of the vehicle control unit 1, controls the eddy current retarder 6 to apply a braking force to the transmission shaft of the axle 4, and once again realizes emergency braking of the axle 4. In the embodiment, the electromagnetic valve 2 and the relay valve 3 are used for emergently braking the axle 4, meanwhile, the eddy current retarder controller 5 and the eddy current retarder 6 are used for emergently braking the axle 4, the axle 4 is braked by multiple channels, the braking performance and the safety performance of the axle 4 are improved, and the safety of a vehicle is improved; meanwhile, the eddy current retarder 6 is adopted for braking, and the brake has economy, environmental protection, stability and comfort.
In this embodiment, the electromagnetic valve 2 is connected to the air inlet of the relay valve 3 through a pipeline, the air outlet of the relay valve 3 is connected to the brake air chamber 41, during operation, the output air pressure of the electromagnetic valve 2 is input as the control pressure of the relay valve 3, and under the action of the control pressure, the compressed air directly enters the brake air chamber through the air inlet of the relay valve 3 from the air reservoir without flowing through the electromagnetic valve 2, so that the inflation pipeline of the brake air chamber 41 is greatly shortened, and the inflation process of the brake air chamber 41 is accelerated. In this embodiment, the solenoid valve 2 is an ASR solenoid valve.
Further, when the eddy current retarder 6 works, a stator coil of the eddy current retarder 6 is energized to generate a magnetic field, and a rotor of the eddy current retarder 6 rotates along with a transmission shaft of the axle 4. The rotor cuts magnetic lines generated by the stator, thereby generating eddy-like induced current inside the rotor disk. Thus, the stator applies an electromagnetic force to the rotor to hinder the rotation of the rotor, thereby generating a braking torque. Meanwhile, the eddy current circulates in the rotor disc with a certain resistance, and the electric energy is converted into heat energy due to the heat effect of the resistance, so that the kinetic energy of the vehicle running is finally converted into heat energy through electromagnetic induction and resistance heating and is dissipated.
Further, the emergency braking device further comprises a brake foot valve 7, one end of the brake foot valve 7 is connected to the vehicle control unit 1, and the other end of the brake foot valve 7 is connected to the relay valve 3. The brake foot valve 7 is trampled by a driver, so that the on-off of the relay valve 3 is controlled, and the vehicle is braked.
The emergency braking device further includes a motor control module 8, the motor control module 8 includes a motor and an MCU (Microcontroller Unit), the MCU is electrically connected to the vehicle control Unit 1 and the motor, and the MCU outputs a control logic signal to the motor. In this embodiment, the vehicle control unit 1 monitors the MCU in real time, and when the motor control module 8 fails to work and the electric braking force of the vehicle is lost instantaneously, the vehicle is out of control, for example: when the MCU is in overcurrent or overtemperature and communication failure, the vehicle control unit 1 receives an emergency braking signal.
The emergency braking device further comprises a power battery module 12, wherein the power battery module 12 is electrically connected to the vehicle control unit 1, the power battery module 12 is used for supplying power to the vehicle, and the power battery module 12 can recover energy when the vehicle brakes. The power battery module 12 is used for driving the vehicle to provide energy and can recover energy storage, the motor control module 8 is used for driving the vehicle and the motor can generate power and brake when the vehicle brakes, energy is stored for the power battery module 12, and the energy consumption utilization rate is improved. In this embodiment, the vehicle control unit 1 monitors the power battery module 12 in real time, and when the power battery module 12 fails, which causes the vehicle to lose the electric braking force and lose the vehicle instantaneously, so as to cause the vehicle to run away, for example: the power battery module 12 is in high temperature or overcurrent fault, so that voltage is lowered, the battery is not powered, and the vehicle control unit 1 receives an emergency braking signal.
Preferably, the emergency braking device further comprises a warning device 9, and the warning device 9 is electrically connected to the vehicle control unit 1. When the vehicle control unit 1 receives the emergency braking signal, the alarm device 9 provides alarm information for a driver, so that operators can conveniently and timely perform remedial measures, and the safety of the vehicle is improved.
In this embodiment, the alarm device 9 includes a voice alarm module and/or a sound and light alarm module. The voice alarm module and/or the sound and light alarm module and the vehicle control unit 1 realize CAN (Controller Area Network) communication, and the voice alarm module broadcasts emergency braking information to a driver and realizes man-machine interaction with the driver.
Further, the emergency braking device further comprises a front radar 11, the front radar 11 is electrically connected to the vehicle control unit 1, and the front radar 11 is used for detecting the distance between the vehicle and the front obstacle. The front radar 11 monitors the distance between the vehicle and the front vehicle in real time, and transmits the distance information to the vehicle control unit 1 through CAN communication. The vehicle control unit 1 monitors the vehicle state in real time, when the vehicle following distance is too close to the vehicle following distance of the front vehicle, the driver does not have corresponding braking action, and at the moment, the vehicle control unit 1 receives an emergency braking signal.
Further preferably, the emergency braking device further comprises an inclination sensor 10, the inclination sensor 10 is electrically connected to the vehicle control unit 1, and the inclination sensor 10 is configured to detect a road gradient on which the vehicle is located. The inclination angle sensor 10 CAN monitor the road gradient of the vehicle at present in real time, and broadcast the road information to the vehicle control unit 1 through the CAN bus, and determine that the vehicle is in a downhill. According to information such as the downhill angle, the vehicle speed, the distance of the vehicle ahead, and the like, the vehicle control unit 1 comprehensively judges whether the vehicle performs emergency braking.
The emergency braking device of the embodiment can monitor the running state of the vehicle in real time, and rapidly perform emergency braking when the power battery module 12 and the motor control module 8 have faults and the driver operates improperly, so that the safety of the vehicle and the driver is protected. The embodiment can effectively improve the braking performance and the safety performance of the mining dump truck.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An emergency braking apparatus, comprising:
an electromagnetic valve (2);
a relay valve (3) having one end connected to the solenoid valve (2) and the other end connected to a brake chamber (41) of the axle (4);
eddy current retarder controller (5) and eddy current retarder (6), eddy current retarder controller (5) connect in eddy current retarder (6), eddy current retarder (6) connect in the transmission shaft of axle (4), eddy current retarder (6) can be right braking force is applyed to the transmission shaft.
2. The emergency braking device according to claim 1, further comprising a foot valve (7), wherein one end of the foot valve (7) is connected to the vehicle control unit (1) and the other end is connected to the relay valve (3).
3. The emergency braking device according to claim 1, further comprising a motor control module (8), wherein the motor control module (8) comprises an electric motor and an MCU, and the MCU is electrically connected to the vehicle control unit (1) and to the electric motor.
4. The emergency braking device according to claim 1, further comprising an alarm device (9), wherein the alarm device (9) is electrically connected to the vehicle control unit (1).
5. Emergency braking device according to claim 4, characterized in that the warning device (9) comprises a voice warning module and/or a sound and light warning module.
6. The emergency braking device according to claim 1, further comprising an inclination sensor (10), wherein the inclination sensor (10) is electrically connected to the vehicle controller (1), and the inclination sensor (10) is configured to detect a road gradient on which the vehicle is located.
7. The emergency braking device according to claim 1, further comprising a front radar (11), wherein the front radar (11) is electrically connected to the vehicle control unit (1), and the front radar (11) is used for detecting the distance between the vehicle and the obstacle in front.
8. The emergency braking device according to claim 1, further comprising a power battery module (12), wherein the power battery module (12) is electrically connected to the vehicle control unit (1), the power battery module (12) is used for supplying power to the vehicle, and the power battery module (12) can recover energy when the vehicle is braked.
9. Emergency braking device according to any of claims 1 to 8, characterized in that the solenoid valve (2) is an ASR solenoid valve (2).
10. A mining dump truck characterized by comprising the emergency brake device of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222222453.1U CN217864090U (en) | 2022-08-23 | 2022-08-23 | Emergency braking device and mining dump truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222222453.1U CN217864090U (en) | 2022-08-23 | 2022-08-23 | Emergency braking device and mining dump truck |
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| Publication Number | Publication Date |
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| CN217864090U true CN217864090U (en) | 2022-11-22 |
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| CN202222222453.1U Active CN217864090U (en) | 2022-08-23 | 2022-08-23 | Emergency braking device and mining dump truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115871468A (en) * | 2023-02-02 | 2023-03-31 | 临工重机股份有限公司 | Engineering vehicle control method and device, vehicle and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115871468A (en) * | 2023-02-02 | 2023-03-31 | 临工重机股份有限公司 | Engineering vehicle control method and device, vehicle and storage medium |
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