CN216508136U - Mining car with safety control - Google Patents
Mining car with safety control Download PDFInfo
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- CN216508136U CN216508136U CN202123075638.6U CN202123075638U CN216508136U CN 216508136 U CN216508136 U CN 216508136U CN 202123075638 U CN202123075638 U CN 202123075638U CN 216508136 U CN216508136 U CN 216508136U
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Abstract
The utility model relates to the technical field of mining vehicles, in particular to a mining vehicle with safety control. The mining truck is provided with a vehicle-mounted computer, a lifting device and a parking braking device. The lifting device is provided with a descending in-place travel switch, the vehicle-mounted computer is respectively connected with the descending in-place travel switch and the parking brake device through the relay control circuit, and when the vehicle-mounted computer detects that the lifting device operates through the descending in-place travel switch, the vehicle-mounted computer controls the parking brake device to operate to brake the mining vehicle. The lifting device is judged through the on-off of the descending in-place travel switch, and the operation of the parking braking device is stopped after the lifting device descends in place, so that the safety of the mining vehicle in the loading and unloading process is enhanced.
Description
Technical Field
The utility model relates to the technical field of mining vehicles, in particular to a mining vehicle with safety control.
Background
The mining vehicle is a main vehicle type operating in a mining area and is mainly used for loading, unloading and transporting earthwork, gravel and bulk materials. When the mining vehicle is used for loading, unloading and transporting, the mining vehicle needs to be driven to a loading and unloading point, and the lifting oil cylinder is controlled to work by operating the manual reversing valve, so that the vehicle hopper is lifted. However, after the loading and unloading operation is finished, a driver sometimes forgets to put the hopper or the driver puts into gear to start the vehicle in the process of lifting the hopper, and collision accidents often occur due to the fact that the height of the air door under the mine is low.
Chinese patent CN104819177A proposes a hydraulic system for preventing a mining vehicle from walking by lifting, in which an actuating port of a gear selecting operation valve is connected with a forward gear clutch and a reverse gear clutch, so that a carriage can be shifted to move forward only when the carriage is reset.
In the actual working process, because mine road conditions are complicated, the working environment of the mining vehicle is mostly slopes, and some working conditions are continuous slopes of even several kilometers, and the mining vehicle needs to assist braking by hanging corresponding gears on some slopes, and the mining vehicle also needs to carry out loading and unloading operation by lifting a car hopper on a slope road section. When the car hopper is not lowered in place, if the mining car moves, mineral aggregates in the car hopper can slide off, and great potential safety hazards can be caused to operators and following vehicles.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mining vehicle with safety control, aiming at overcoming the problem that the mining vehicle moves when a car hopper is not lowered in place, and comprising: a vehicle-mounted computer, a lifting device and a parking brake device;
a descending in-place travel switch is arranged on the lifting device;
the vehicle-mounted computer is respectively connected with the descending in-place travel switch and the parking braking device through the relay control circuit, and when the vehicle-mounted computer detects that the lifting device operates through the descending in-place travel switch, the vehicle-mounted computer controls the parking braking device to operate to brake the mining vehicle.
Preferably, the device further comprises a relay control circuit;
the relay control circuit comprises a starting relay KA, a descending in-place travel switch KQ1, a relay KM1 and a time relay KT;
two ends of the starting relay KA are connected with a normally open contact of the relay KM1 in parallel;
the first end of the starting relay KA is connected with the first end of the descending in-place travel switch KQ 1;
the second end of the down-to-position travel switch KQ1 is connected with a time relay KT coil;
the second end of the starting relay KA is connected with the first end of the time relay KT normally closed contact;
the second end of the normally closed contact of the time relay KT is connected with the coil of the relay KM 1.
Preferably, the relay control circuit further comprises a rise-to-position travel switch KQ2 and a relay KM 2;
the first end of the lifting position limit switch KQ2 is connected with the first end of the starting relay KA;
the second end of the lifting travel switch KQ2 is connected with a coil of a relay KM 2;
a normally open contact of the relay KM2 is connected with a warning lamp HL and a buzzer HA;
a normally closed contact of a descending position travel switch KQ1 is also connected between the second end of the ascending position travel switch KQ2 and the coil of the relay KM 2.
Preferably, the relay control circuit further comprises a fuse FU1, a fuse FU2, a thermal relay FR and an emergency stop switch SB 1;
the first end of the fuse FU1 and the second end of the fuse FU2 are respectively connected with power supply terminals and used for short-circuit protection;
the second end of the fuse FU1 is connected with the first end of the thermal relay FR and is used for overload protection;
a first end of an emergency stop switch SB1 is connected with a second end of a thermal relay FR and is used for stopping the parking brake device;
the second end of the emergency stop switch SB1 is connected with the first end of the starting relay KA.
Preferably, the brake system further comprises an auxiliary braking device and an accumulator;
the auxiliary braking device is connected with the energy accumulator; the auxiliary braking device is used for converting inertia energy of the vehicle into high-pressure hydraulic oil and storing the high-pressure hydraulic oil to the accumulator;
the energy accumulator is connected with the lifting device and used for pushing the lifting device to realize lifting action.
Preferably, the system also comprises a wireless communication device and a remote monitoring terminal;
the vehicle-mounted computer is in communication connection with the remote monitoring terminal through the wireless communication device, and the wireless communication device is used for uploading vehicle information and driver information;
the vehicle information includes vehicle engine parameters, vehicle speed, vehicle location, and fuel quantity.
Preferably, a hydraulic actuator is also included;
the hydraulic starter is connected with the energy accumulator and used for starting the mining vehicle.
According to the technical scheme, the utility model has the following advantages:
the lifting position of the lifting device is monitored in real time through the descending stroke switch, the lifting position of the lifting device does not reach a set value, the mine car is controlled to be in a braking state through the parking braking device, and the effect of guaranteeing the driving safety is achieved. By arranging the relay control circuit, the reliability and the stability of detection of the travel switch detection lifting device are improved. After the starting relay KA is closed, the parking braking device is controlled to be started through the relay KM1, and the mining vehicle is controlled to be in a braking state. The lifting device is detected to descend to the place through a descending to-place travel switch KQ1, and the parking brake device is controlled to be closed in a delayed mode through a time relay KT, so that the safety coefficient is increased. The mine car lifting device is connected with the warning lamp HL and the buzzer HA through the relay KM2, a sound-light alarm mechanism is formed, and a driver is reminded of the mine car to be in a lifting state in real time through the sound-light alarm mechanism in the lifting process of the lifting device. By arranging the auxiliary braking device and the energy accumulator, the inertia energy generated when the mine car descends and the energy generated in the auxiliary braking process are collected by the energy accumulator and used for providing energy for the oil cylinder of the lifting device, so that the load of the engine of the mine car is reduced, and the aim of saving energy is fulfilled. The vehicle motion state is obtained by collecting vehicle engine parameters, vehicle speed, vehicle positioning and oil quantity, when the vehicle motion state is not in accordance with the driving standard, alarm information is sent to a driver in time, and the vehicle engine is controlled to be flamed out remotely. When the descending position of the lifting device reaches a set threshold value, the vehicle-mounted computer sends an engine starting signal to the hydraulic starter, and the vehicle is ensured to be started to meet safety regulations.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic control diagram of a safety-controlled mining truck.
Fig. 2 is a schematic diagram of a relay control circuit.
FIG. 3 is a schematic diagram of acousto-optic alarm control.
In the figure: 1. the system comprises a vehicle-mounted computer, a parking braking device 2, a remote monitoring terminal 4, a wireless communication device 5, an energy accumulator 6 and an auxiliary braking device 7.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
The utility model provides a mining vehicle with safety control, as shown in fig. 1 to 3, comprising: the method comprises the following steps: an on-vehicle computer 1, a lifting device and a parking brake device 2. The in-vehicle computer 1 includes: mainboard, CPU, memory. The mainboard adopts intel D945GCLF2D mainboard, and the mainboard size is 171.45mm X171.45 mm, and CPU adopts ATOM dual-core N330 CPU, adopts the 2GB memory that has 667MHz single channel DDR2 SDram interface in the aspect of the memory, simultaneously, possesses 9 pin serial ports, 6 USB interfaces, provides SATA hard disk interface. An electronic parking braking system is arranged in the parking braking device 2, and parking braking is realized in an electronic control mode. The lifting device comprises a hydraulic cylinder and a hydraulic column, and is connected with the energy accumulator 6.
The energy accumulator 6 is an energy storage device in a hydraulic pneumatic system, and is used for converting energy in the system into compression energy or potential energy to be stored, and converting the compression energy or the potential energy into energy such as hydraulic pressure or air pressure to be released when the system needs the energy storage device, and supplying the energy to the system again. The energy accumulator 6 is connected with an auxiliary brake device 7, the auxiliary brake device 7 adopts a hydraulic speed reducing device, the hydraulic speed reducing device is arranged in the speed changer by utilizing the existing oil pump of the mining truck, and the energy is absorbed by hydraulic friction between the rotor and the stator, the absorbed energy is stored in the energy accumulator 6, and the mining truck is decelerated at the same time.
During the running process of the mining vehicle, the vehicle-mounted computer can judge whether the vehicle is in a downhill state or not according to vehicle engine information, vehicle speed information and gradient sensor information, if so, a signal is sent to the auxiliary braking device 7, the auxiliary braking device 7 starts to work, and the inertia energy of the vehicle is converted into high-pressure hydraulic oil to be recycled and stored while the vehicle is braked.
Further, when the lifting device of the mining vehicle needs to be lifted, the vehicle-mounted computer 1 makes a judgment according to the pressure value of the energy accumulator 6: if the pressure value is higher than the set value, the auxiliary brake device 7 recovers and stores the pressure oil in the energy accumulator 6 to do work, and the hydraulic cylinder of the lifting device is pushed to realize lifting and discharging; and if the pressure value of the energy accumulator 6 is lower than the set value, the mining vehicle engine does work to realize lifting and finish unloading.
The energy accumulator 6 is also connected with a hydraulic starter which is connected with the vehicle-mounted computer 1, and the mining vehicle is started after receiving a starting signal sent by the vehicle-mounted computer 1.
The vehicle-mounted computer 1 is respectively connected with the descending in-place travel switch and the parking brake device 2 through a relay control circuit,
the relay control circuit comprises a fuse FU1, a fuse FU2, a thermal relay FR, an emergency stop switch SB1, a starting relay KA, a travel switch KQ1, a travel switch KQ2, a relay KM1, a relay KM2 and a time relay KT.
Explained further, a first end of the fuse FU1 is connected to a power source, a second end of the fuse FU1 is connected to a first end of a thermal relay FR, a second end of the thermal relay FR is connected to a first end of an emergency stop switch SB1, and a second end of the emergency stop switch SB1 is connected to a first end of a start relay KA. Starting relay KA both ends parallel connection relay KM1 normally open contact, starting relay KA first end with descend the travel switch KQ1 normally open contact first end that targets in place and be connected, descend travel switch KQ1 normally open contact second end that targets in place and be connected with time relay KT coil first end, starting relay KA second end is connected with time relay KT normally closed contact first end, time relay KT normally closed contact second end is connected with relay KM1 coil first end.
The first end of a normally open contact of the lifting in-place travel switch KQ2 is connected with the first end of a starting relay KA, the second end of the normally open contact of the lifting in-place travel switch KQ2 is connected with the first end of a normally closed contact of the descending in-place travel switch KQ1, and the second end of the normally closed contact of the descending in-place travel switch KQ1 is connected with the first end of a coil of a relay KM 2. The normally open contact of the relay KM2 is connected with a warning lamp HL and a buzzer HA. The second end of the coil of the relay KM1, the second end of the coil of the time relay KT and the first end of the coil of the relay KM2 are connected with the first end of the fuse FU2, and the second end of the fuse FU2 is connected with a power supply.
The specific implementation flow of the circuit is that when the vehicle-mounted computer 1 detects that the lifting device takes place to lift or detects that the vehicle-mounted computer descends to the right, the normally closed contact of the travel switch KQ1 is disconnected, the vehicle-mounted computer 1 is connected with the starting relay KA to control the closing of the starting relay KA so that the coil of the relay KM1 is electrified, the normally open contact of the relay KM1 is closed, and the parking braking device 2 is controlled to run through the relay KM 1. When the lifting device rises to the right position and touches the travel switch KQ2 rising to the right position, the normally open contact of the travel switch KQ2 rising to the right position is closed, the coil of the relay KM2 is electrified, the normally open contact of the relay KM2 is attracted, the warning lamp HL and the buzzer HA are electrified through attraction of the normally open contact of the relay KM2, and the alarm giving the alarm of rising to the right position is sent out.
When the lifting device descends and touches the descending in-place travel switch KQ1, the normally open contact of the descending in-place travel switch KQ1 is switched to the normally closed contact, the coil of the time relay KT is electrified, the time relay KT starts to time, and after the set time is reached, the normally closed contact of the time relay KT is disconnected, the coil of the relay KM1 is electrified, and the operation of the parking brake device 2 is stopped.
Further, when the lifting device touches the descending position travel switch KQ1, the descending position travel switch KQ1 disconnects the normally closed contact of the relay KM2, so that the warning lamp HL and the buzzer HA stop operating, and the alarm is ended.
The vehicle-mounted computer is also provided with a wireless communication device 5 and a remote monitoring terminal 4, the vehicle-mounted computer 1 is in communication connection with the remote monitoring terminal 4 through the wireless communication device 5, and the wireless communication device 5 is used for uploading vehicle information and driver information. The remote monitoring terminal 4 verifies whether the driving authority exists or not through checking and verifying the driver information, after the verification is passed and the mining vehicle is in the starting permission state through vehicle information, the vehicle-mounted computer 1 sends a starting signal to the hydraulic starter, and the engine of the mining vehicle is automatically started through the hydraulic starter. The vehicle information includes vehicle engine parameters, vehicle speed, vehicle location, fuel quantity, etc.
Further, the vehicle-mounted computer 1 is connected with the warning lamp HL, the buzzer HA and the extinguisher, the vehicle motion condition of a driver in the actual driving process is recorded through vehicle information, when the behavior of the driver does not accord with the rules or the lifting device does not descend to the right position, the parking braking device 2 is forcibly stopped by pressing the emergency stop switch SB1, the vehicle-mounted computer 1 is connected with the buzzer HA through the warning lamp HL, the warning is carried out to remind the driver, if the driver does not operate according to the prompt, the vehicle-mounted computer 1 sends a signal to the extinguisher to forcibly extinguish the fire, and bad driving data are uploaded to the remote monitoring terminal 4.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A mining vehicle with safety control, comprising: a vehicle-mounted computer, a lifting device and a parking brake device;
a descending in-place travel switch is arranged on the lifting device;
the vehicle-mounted computer is respectively connected with the descending in-place travel switch and the parking braking device through the relay control circuit, and when the vehicle-mounted computer detects that the lifting device operates through the descending in-place travel switch, the vehicle-mounted computer controls the parking braking device to operate to brake the mining vehicle.
2. The mining vehicle with safety regulation and control according to claim 1,
the relay control circuit comprises a starting relay KA, a descending in-place travel switch KQ1, a relay KM1 and a time relay KT;
two ends of the starting relay KA are connected with a normally open contact of the relay KM1 in parallel;
the first end of the starting relay KA is connected with the first end of the descending in-place travel switch KQ 1;
the second end of the down-to-position travel switch KQ1 is connected with a time relay KT coil;
the second end of the starting relay KA is connected with the first end of the time relay KT normally closed contact;
the second end of the normally closed contact of the time relay KT is connected with the coil of the relay KM 1.
3. The mining vehicle with safety control according to claim 2, wherein the relay control circuit further comprises a rise-to-position travel switch KQ2 and a relay KM 2;
the first end of the lifting position limit switch KQ2 is connected with the first end of the starting relay KA;
the second end of the lifting travel switch KQ2 is connected with a coil of a relay KM 2;
a normally open contact of the relay KM2 is connected with a warning lamp HL and a buzzer HA;
a normally closed contact of a descending position travel switch KQ1 is also connected between the second end of the ascending position travel switch KQ2 and the coil of the relay KM 2.
4. The mining vehicle with safety regulation and control according to claim 2,
the relay control circuit further comprises a fuse FU1, a fuse FU2, a thermal relay FR and an emergency stop switch SB 1;
the first end of the fuse FU1 and the second end of the fuse FU2 are respectively connected with a power supply end and used for short-circuit protection;
the second end of the fuse FU1 is connected with the first end of the thermal relay FR for overload protection;
a first end of the emergency stop switch SB1 is connected with a second end of the thermal relay FR and is used for stopping the parking braking device;
the second end of the emergency stop switch SB1 is connected with the first end of the starting relay KA.
5. The mining vehicle with safety regulations according to claim 1, characterized by further comprising an auxiliary braking device and an accumulator;
the auxiliary braking device is connected with the energy accumulator; the auxiliary braking device is used for converting inertia energy of the vehicle into high-pressure hydraulic oil and storing the high-pressure hydraulic oil to the accumulator;
the energy accumulator is connected with the lifting device and used for pushing the lifting device to achieve lifting action.
6. The mining vehicle with safety control according to claim 1, further comprising a wireless communication device and a remote monitoring terminal;
the vehicle-mounted computer is in communication connection with the remote monitoring terminal through the wireless communication device, and the wireless communication device is used for uploading vehicle information and driver information;
the vehicle information includes vehicle engine parameters, vehicle speed, vehicle location, and fuel quantity.
7. The mining vehicle with safety management and control of claim 5, further comprising a hydraulic actuator;
the hydraulic starter is connected with the energy accumulator and used for starting the mining vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123075638.6U CN216508136U (en) | 2021-12-08 | 2021-12-08 | Mining car with safety control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123075638.6U CN216508136U (en) | 2021-12-08 | 2021-12-08 | Mining car with safety control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216508136U true CN216508136U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123075638.6U Active CN216508136U (en) | 2021-12-08 | 2021-12-08 | Mining car with safety control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216508136U (en) |
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2021
- 2021-12-08 CN CN202123075638.6U patent/CN216508136U/en active Active
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