Tire temperature control system and method for mining dump truck

Abstract

The invention discloses a tire temperature control system and method for a mining dump truck, and belongs to the field of tire temperature control. The system comprises vortex tubes, cold and hot air switching assemblies, tire pressure monitoring systems and a controller, each tire is provided with the corresponding vortex tube, the corresponding cold and hot air switching assembly and the corresponding tire pressure monitoring system, and the vortex tubes are communicated with a compressed air pipeline of the mining dump truck. The cold and hot air switching assemblies and the tire pressure monitoring system are connected with the controller, the tire pressure monitoring system is used for monitoring the tire pressure and temperature, and the controller is used for sending out control signals for outputting cold air or hot air to the cold and hot air switching assemblies at the tires according to the monitored tire pressure and temperature; and the cold and hot air switching assembly is used for switching the vortex tube to output cold air or hot air to the tire according to the received control signal for outputting the cold air or hot air. The tire temperature adjusting device is simple in structure, and the tire temperature can be adjusted only by adding the vortex tube and the cold and hot air switching assembly.

Description

Technical Field

[0001] The invention belongs to the field of tire temperature control, and in particular relates to a tire temperature control system and method for a mining dump truck based on an eddy current tube. Background Art

[0002] As the only part of a mining dump truck that comes into contact with the road, the performance of the tire directly affects the safety, handling stability, comfort, power and economy of the entire vehicle. When a mining dump truck is heavily loaded, the tire is in direct contact with the ground, constantly deforming and rubbing, generating a large amount of heat, causing the tire temperature to rise rapidly, accelerating tire aging, and even causing a tire blowout due to excessive heat accumulation. When the ambient temperature is low, the elasticity of the tire decreases and it is easy to be damaged, and the grip performance is affected. Therefore, in order to ensure the efficient and safe operation of mining dump trucks, the temperature of mining dump truck tires needs to be controlled within a reasonable range.

[0003] The existing tire temperature regulation technology solutions for mining dump trucks focus on heat dissipation and cooling at high temperatures. The main forms of tire heat dissipation are natural air cooling and spray water cooling. Natural air cooling relies on the airflow during vehicle driving to cool the tires, without the need to install special cooling components; spray water cooling uses water as a refrigerant, and uses a spray component to spray water onto the tires, and absorbs heat from the tires through the evaporation of water. In addition, China's utility model patent 201320088577.3 proposes a cooling method of forced air cooling. However, since natural air cooling and forced air cooling use air at room temperature, the heat dissipation efficiency is low and the cooling effect is not significant. Spray water cooling has the risk of freezing in northern winter, affecting the vehicle itself and road safety. Summary of the invention

[0004] The purpose of the present invention is to provide a temperature control system and method for mining dump truck tires based on vortex tubes to solve the problems of mining dump truck tires overheating under heavy load conditions, resulting in accelerated aging or tire blowout, and low temperature having an adverse effect on tire grip performance.

[0005] To achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a tire temperature control system for a mining dump truck, comprising: a vortex tube, a hot and cold air switching component, a tire pressure monitoring system and a controller, wherein each tire is provided with a vortex tube, a hot and cold air switching component and a tire pressure monitoring system, the vortex tube is communicated with a compressed air pipeline of the mining dump truck, the hot and cold air switching component is connected to the vortex tube, the hot and cold air switching component and the tire pressure monitoring system are both connected to the controller, the tire pressure monitoring system is used to monitor tire pressure and temperature, the controller is used to send a control signal for outputting cold air or hot air to the hot and cold air switching component at each tire according to the monitored tire pressure and temperature; the hot and cold air switching component is used to switch the vortex tube to output cold air or hot air to the tire according to the received control signal for outputting cold air or hot air; One of the cold air outlet and the hot air outlet of the vortex tube faces the tire tread, and the other faces away from the tire. The cold and hot air switching assembly includes a distribution plate, a receiving plate and a servo motor. The distribution plate is axially sealed and connected to the receiving plate. A compressed air distribution duct is arranged in the distribution plate, and the compressed air distribution duct includes a main air duct and two branch air ducts connected to the main air duct. The main air duct is connected to the compressed air pipeline of the mining dump truck. The two branch air ducts are symmetrically distributed about the central axis of the distribution plate and pass through the bottom of the distribution plate. A compressed air receiving duct is arranged in the receiving plate, and one end of the compressed air receiving duct corresponds to a branch air duct position of the distribution plate and is connected to each other, and the other end is fixedly connected to the vortex tube inlet. The servo motor is fixedly connected to the distribution plate, and the rotating shaft of the servo motor passes through the distribution plate and is fixedly connected to the receiving plate, for driving the receiving plate to rotate relative to the distribution plate, and the servo motor is connected to a controller.

[0006] Furthermore, the distribution plate is fixed to the bottom of the cab, frame or cargo box above the tires.

[0007] Furthermore, the compressed air receiving air passage is connected to the vortex tube inlet via threads.

[0008] Furthermore, the compressed air receiving air passage is connected to the vortex tube inlet through a bend pipe.

[0009] Furthermore, the distribution tray and the receiving tray are both made of non-metallic materials with low thermal conductivity.

[0010] In a second aspect, the present invention provides a tire temperature control system for a mining dump truck, comprising: a vortex tube, a hot and cold air switching component, a tire pressure monitoring system and a controller, wherein each tire is provided with a vortex tube, a hot and cold air switching component and a tire pressure monitoring system, the vortex tube is communicated with a compressed air pipeline of the mining dump truck, the hot and cold air switching component is connected to the vortex tube, the hot and cold air switching component and the tire pressure monitoring system are both connected to the controller, the tire pressure monitoring system is used to monitor tire pressure and temperature, the controller is used to send a control signal for outputting cold air or hot air to the hot and cold air switching component at each tire according to the monitored tire pressure and temperature; the hot and cold air switching component is used to switch the vortex tube to output cold air or hot air to the tire according to the received control signal; The inlet of the vortex tube is connected to the compressed air pipeline of the mining dump truck, and the cold and hot air switching component includes a three-position four-way solenoid valve. The two inlets A and B of the three-position four-way solenoid valve are respectively connected to the cold air outlet and the hot air outlet of the vortex tube, and the two outlets C and D are respectively connected to the tire air supply pipeline and the external exhaust pipeline. The outlet of the tire air supply pipeline faces the tire tread, and the outlet of the external exhaust pipeline faces away from the tire. The three-position four-way solenoid valve is connected to a controller.

[0011] Furthermore, the three-position four-way solenoid valve is made of a non-metallic material with low thermal conductivity.

[0012] In a third aspect, the present invention provides a method for controlling the temperature of a mining dump truck tire, which is implemented based on the mining dump truck tire temperature control system described in the first aspect, and the method comprises: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire exceeds the upper limit, the controller sends a control signal for outputting cold air to the servo motor at the tire, and the servo motor drives the receiving plate and the vortex tube to rotate to the cold air output position according to the control signal for outputting cold air: the cold air outlet of the vortex tube faces the tire tread, and the output cold air cools the tire, and the hot air outlet of the vortex tube faces away from the tire, and the output hot air is directly discharged; When the tire pressure monitoring system detects that the pressure or temperature of the tire drops to a normal range, the controller sends a shutdown control signal to the servo motor at the tire, and the servo motor drives the receiving plate and the vortex tube to rotate to a position where the air path connected to the distribution plate is disconnected according to the shutdown control signal.

[0013] Furthermore, the mining dump truck tire temperature control method further includes: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire is lower than the lower limit, the controller sends a control signal for outputting hot air to the servo motor at the tire, and the servo motor drives the receiving plate and the vortex tube to rotate to the hot air output position according to the control signal for outputting hot air: the hot air outlet of the vortex tube faces the tire tread, and the output hot air heats the tire, and the cold air outlet of the vortex tube faces away from the tire, and the output cold air is directly discharged; When the tire pressure monitoring system detects that the pressure or temperature of the tire rises to a normal range, the controller sends a shutdown control signal to the servo motor at the tire, and the servo motor drives the receiving plate and the vortex tube to rotate to a position where the air path connected to the distribution plate is disconnected according to the shutdown control signal.

[0014] In a fourth aspect, the present invention provides a method for controlling the temperature of a mining dump truck tire, which is implemented based on the mining dump truck tire temperature control system described in the second aspect, and the method comprises: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire exceeds the upper limit, the controller sends a control signal for outputting cold air to the three-position four-way solenoid valve at the tire, and the three-position four-way solenoid valve switches the air path in the valve according to the control signal for outputting cold air, so that the inlet A is connected to the outlet C, and the inlet B is connected to the outlet D, and the cold air output by the vortex tube is delivered to the tire tread through the tire air supply pipeline, and the hot air output by the vortex tube is discharged through the external exhaust pipeline; When the tire pressure monitoring system detects that the pressure or temperature of the tire drops to a normal range, the controller sends a closing control signal to the three-position four-way solenoid valve at the tire, and the three-position four-way solenoid valve closes all air paths in the valve according to the closing control signal.

[0015] Furthermore, the mining dump truck tire temperature control method further includes: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire is lower than the lower limit, the controller sends a control signal for outputting hot air to the three-position four-way solenoid valve at the tire, and the three-position four-way solenoid valve switches the air path in the valve according to the control signal for outputting hot air, so that the inlet B is connected to the outlet C, and the inlet A is connected to the outlet D, and the hot air output by the vortex tube is delivered to the tire tread through the tire air supply pipeline, and the cold air output by the vortex tube is discharged through the external exhaust pipeline; When the tire pressure monitoring system detects that the pressure or temperature of the tire rises to a normal range, the controller sends a closing control signal to the three-position four-way solenoid valve at the tire, and the three-position four-way solenoid valve closes all air paths in the valve according to the closing control signal.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are: (1) The present invention utilizes the characteristic of the vortex tube to separate the cold and hot air flows from the compressed air into a vortex. The vortex tube is connected to the compressed air pipeline on the mining dump truck to generate cold air and hot air. The cold and hot air switching component is then used to output cold air or hot air to the tires as needed to cool or heat the tires. Combined with the tire pressure monitoring system, the automatic temperature control of each tire can be achieved. (2) The present invention has a simple structure and makes full use of the existing air path of the mining dump truck. The tire temperature can be regulated by simply adding a vortex tube and a hot and cold air switching component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a tire temperature control system for a mining dump truck in one embodiment of the present invention; Figure 2 A cross-sectional view of the structure of a cold and hot gas switching assembly of the present invention in one embodiment; Figure 3 for Figure 2 A cross-sectional view of the middle distribution plate along the AA direction; Figure 4 The figure is a schematic structural diagram of another embodiment of a tire temperature control system for a mining dump truck of the present invention.

[0018] In the figure: 1. distribution plate; 2. sealing ring; 3. servo motor; 4. receiving plate; 5. vortex tube; 6. compressed air distribution duct; 7. main air duct; 8. branch air duct; 9. compressed air receiving duct; 10. three-position four-way solenoid valve; 11. tire air supply pipeline; 12. external exhaust pipeline. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention.

[0020] Example 1

[0021] like Figures 1 to 3 As shown, an embodiment of the present invention provides a tire temperature control system for a mining dump truck, comprising: a vortex tube 5, a hot and cold air switching component, a controller and a tire pressure monitoring system (TPMS). A vortex tube 5, a hot and cold air switching component and a tire pressure monitoring system are provided at each tire. The hot and cold air switching component and the tire pressure monitoring system are both connected to the controller.

[0022] The vortex tube 5 is used to separate the compressed air into cold air and hot air.

[0023] The vortex tube 5 is a counter-current vortex tube. The cold air and hot air of the counter-current vortex tube move in opposite directions and are discharged from two outlets on opposite sides respectively. Its efficiency is higher than that of the co-current vortex tube.

[0024] The vortex tube is a purely mechanical structure with no moving parts inside. It is reliable in operation, maintenance-free, and has low cost of use. It is suitable for mining areas with high dust content.

[0025] One of the cold air outlet and the hot air outlet of the vortex tube 5 faces the tire tread, and the other faces away from the tire. The cold and hot air switching assembly adopts a servo reversing disc assembly.

[0026] like Figure 2 and Figure 3 As shown, the servo reversing disc assembly includes a distribution disc 1 , a receiving disc 4 and a servo motor 3 .

[0027] The distribution plate 1 and the receiving plate 4 are both flat cylindrical structures, and the two are axially sealed and connected. A sealing ring 2 is arranged between the distribution plate 1 and the receiving plate 4 along the circumferential direction.

[0028] The distribution plate 1 is fixed to the bottom of the cab, frame or cargo box above the tire.

[0029] A compressed air distribution channel 6 is provided in the distribution plate 1, and the compressed air distribution channel 6 includes a main channel 7 and two branch channels 8 connected to the main channel 7. The main channel 7 is a radial single outlet structure, and the branch channel 8 is an axial single outlet structure. The two branch channels 8 are symmetrically distributed about the central axis of the distribution plate 1 and run through the bottom of the distribution plate 1.

[0030] The main air channel 7 is connected to a compressed air pipeline output by an air compressor or an air storage cylinder on a mining dump truck.

[0031] A compressed air receiving passage 9 is provided in the receiving plate 4. The compressed air receiving passage 9 is an eccentric axial through structure. One end of the compressed air receiving passage 9 is opposite to and connected to a branch passage 8 of the distribution plate 1, and the other end is connected to the inlet of the vortex tube 5 by thread.

[0032] The servo motor 3 is fixedly connected to the distribution tray 1, and the rotating shaft of the servo motor 3 passes through the distribution tray 1 and is fixedly connected to the receiving tray 4, so as to drive the receiving tray 4 to rotate relative to the distribution tray 1. The servo motor 3 is connected to a controller.

[0033] When the receiving plate 4 rotates to communicate with any air distribution channel 8 of the distribution plate 1, the vortex tube 5 receives the compressed air and starts to separate the cold air and the hot air.

[0034] Since the vortex tube 5 is fixedly connected to the receiving tray 4, when the receiving tray 4 rotates, the vortex tube 5 will be driven to rotate together, thereby switching the positions of the cold air outlet and the hot air outlet of the vortex tube 5 relative to the tire. For example, the receiving tray 4 begins to communicate with an air distribution channel 8 of the distribution tray 1. At this time, the cold air outlet of the vortex tube 5 faces the tire tread, and the hot air outlet faces away from the tire. When the receiving tray 4 rotates to communicate with another air distribution channel 8 of the distribution tray 1, the vortex tube 5 rotates accordingly until its hot air outlet faces the tire tread, and the cold air outlet faces away from the tire.

[0035] The tire pressure monitoring system is used to monitor tire pressure and temperature. Specifically, the tire pressure monitoring system is used to automatically monitor tire pressure and temperature in real time during driving, and to alarm for tire leakage and low pressure to ensure driving safety.

[0036] The controller is used to send a control signal for outputting cold air or hot air to the servo motor 3 at each tire according to the tire pressure and temperature monitored by the tire pressure monitoring system.

[0037] The servo motor 3 is used to drive the receiving plate 4 to rotate according to the received control signal of outputting cold air or hot air, thereby driving the vortex tube 5 to rotate until the cold air outlet or the hot air outlet faces the tire tread.

[0038] In a preferred embodiment, a curved pipe may be installed between the compressed air receiving passage 9 and the inlet of the vortex tube 5 to obtain a better air outlet angle.

[0039] The distribution tray 1 and the receiving tray 4 are both made of non-metallic materials with low thermal conductivity, and engineering plastics, ceramic materials, composite materials, etc. can be selected.

[0040] Example 2

[0041] Combination Figure 1 As shown, this embodiment provides a method for controlling tire temperature of a mining dump truck, comprising: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire exceeds the upper limit, the controller sends a control signal for outputting cold air to the servo motor 3 at the tire, and the servo motor 3 drives the receiving plate 4 and the vortex tube 5 to rotate to the cold air output position according to the control signal for outputting cold air: the cold air outlet of the vortex tube 5 faces the tire tread, and the output cold air cools the tire; at the same time, the hot air outlet of the vortex tube 5 faces away from the tire, and the output hot air is directly discharged; When the tire pressure monitoring system detects that the pressure or temperature of the tire drops to a normal range, the controller sends a shutdown control signal to the servo motor 3 at the tire. The servo motor 3 drives the receiving disk 4 and the vortex tube 5 to rotate 90 degrees according to the shutdown control signal to disconnect the air path connected to the distribution disk 1 and enter the standby state.

[0042] Combination Figure 1 As shown, a method for controlling tire temperature of a mining dump truck in this embodiment further includes: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire is lower than the lower limit, the controller sends a control signal for outputting hot air to the servo motor 3 at the tire, and the servo motor 3 drives the receiving plate 4 and the vortex tube 5 to rotate to the hot air output position according to the control signal for outputting hot air: the hot air outlet of the vortex tube 5 faces the tire tread, and the output hot air heats the tire; at the same time, the cold air outlet of the vortex tube 5 faces away from the tire, and the output cold air is directly discharged; When the tire pressure monitoring system detects that the pressure or temperature of the tire rises to a normal range, the controller sends a shutdown control signal to the servo motor 3 at the tire. The servo motor 3 drives the receiving disk 4 and the vortex tube 5 to rotate 90 degrees according to the shutdown control signal to disconnect the air path connected to the distribution disk 1 and enter the standby state.

[0043] Example 3

[0044] like Figure 4 As shown, an embodiment of the present invention provides a tire temperature control system for a mining dump truck, comprising: a vortex tube 5, a hot and cold air switching component, a controller and a tire pressure monitoring system. A vortex tube 5, a hot and cold air switching component and a tire pressure monitoring system are provided at each tire. The hot and cold air switching component and the tire pressure monitoring system are both connected to the controller.

[0045] The vortex tube 5 is used to separate the compressed air into cold air and hot air.

[0046] The inlet of the vortex tube 5 is connected to the compressed air pipeline output by the air compressor or the air storage cylinder on the mining dump truck.

[0047] The hot and cold air switching components use a three-position four-way solenoid valve. Figure 4 As shown, the two inlets A and B of the three-position four-way solenoid valve 10 are respectively connected to the cold air outlet and the hot air outlet of the vortex tube 5, and the two outlets C and D are respectively connected to the tire air supply pipeline 11 and the external exhaust pipeline 12. The outlet of the tire air supply pipeline 11 faces the tire tread, and the outlet of the external exhaust pipeline 12 faces away from the tire.

[0048] The three-position four-way solenoid valve 10 is connected to the controller.

[0049] The three-position four-way solenoid valve 10 is made of non-metallic materials with low thermal conductivity, such as engineering plastics, ceramic materials, composite materials, etc.

[0050] By switching the air path in the valve, connecting inlet A with outlet C, and connecting inlet B with outlet D, the cold air output from the cold air outlet of the vortex tube 5 can be delivered to the tire tread through the tire air supply pipeline 11, and the hot air output from the hot air outlet of the vortex tube 5 can be delivered to the external exhaust pipeline 12 for discharge; by switching the air path in the valve, connecting inlet B with outlet C, and connecting inlet A with outlet D, the hot air output from the hot air outlet of the vortex tube 5 can be delivered to the tire tread through the tire air supply pipeline 11, and the cold air output from the cold air outlet of the vortex tube 5 can be delivered to the external exhaust pipeline 12 for discharge.

[0051] The tire pressure monitoring system is used to monitor tire pressure and temperature.

[0052] The controller is used to send a control signal for outputting cold air or hot air to the three-position four-way solenoid valve 10 at each tire according to the tire pressure and temperature monitored by the tire pressure monitoring system.

[0053] The three-position four-way solenoid valve 10 switches the air path in the valve according to the received control signal for outputting cold air or hot air, and delivers the cold air or hot air output by the vortex tube 5 to the tire tread.

[0054] Example 4

[0055] Combination Figure 4 As shown, this embodiment provides a method for controlling tire temperature of a mining dump truck, comprising: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire exceeds the upper limit, the controller sends a control signal for outputting cold air to the three-position four-way solenoid valve 10 at the tire. The three-position four-way solenoid valve 10 switches the air path in the valve according to the control signal for outputting cold air, so that the inlet A is connected to the outlet C, and the inlet B is connected to the outlet D, and the cold air output by the vortex tube 5 is delivered to the tire tread through the tire air supply pipeline 11, and the hot air output by the vortex tube 5 is delivered to the external exhaust pipeline 12 for discharge; When the tire pressure monitoring system detects that the pressure or temperature of the tire drops to a normal range, the controller sends a closing control signal to the three-position four-way solenoid valve 10 at the tire. The three-position four-way solenoid valve 10 closes all air circuits in the valve according to the closing control signal and enters a standby state.

[0056] Combination Figure 4 As shown, a method for controlling tire temperature of a mining dump truck in this embodiment further includes: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire is lower than the lower limit, the controller sends a control signal for outputting hot air to the three-position four-way solenoid valve 10 at the tire, and the three-position four-way solenoid valve 10 switches the air path in the valve according to the control signal for outputting hot air, so that the inlet B is connected to the outlet C, and the inlet A is connected to the outlet D, and the hot air output by the vortex tube 5 is delivered to the tire tread through the tire air supply pipeline 11, and the cold air output by the vortex tube 5 is delivered to the external exhaust pipeline 12 for discharge; When the tire pressure monitoring system detects that the pressure or temperature of the tire rises to a normal range, the controller sends a closing control signal to the three-position four-way solenoid valve 10 at the tire. The three-position four-way solenoid valve 10 closes all air circuits in the valve according to the closing control signal and enters a standby state.

[0057] The present invention can generate cold air and hot air by connecting the vortex tube to the compressed air pipeline output by the air compressor or air storage cylinder on the mining dump truck, and output cold air or hot air to the tire as needed through the cold and hot air switching component. Combined with the tire pressure monitoring system, automatic temperature control of each tire can be achieved.

[0058] The present invention has been disclosed above with preferred embodiments, but they are not intended to limit the present invention. Any technical solutions obtained by adopting equivalent replacement or equivalent transformation solutions fall within the protection scope of the present invention.

Claims

1. A tire temperature control system for a mining dump truck. It is characterized in that include: A vortex tube (5), a cold and hot air switching component, a tire pressure monitoring system and a controller, wherein each tire is provided with a vortex tube (5), a cold and hot air switching component and a tire pressure monitoring system, the vortex tube (5) is communicated with a compressed air pipeline of a mining dump truck, the cold and hot air switching component is connected to the vortex tube (5), the cold and hot air switching component and the tire pressure monitoring system are both connected to the controller, the tire pressure monitoring system is used to monitor tire pressure and temperature, the controller is used to send a control signal for outputting cold air or hot air to the cold and hot air switching component at each tire according to the monitored tire pressure and temperature; the cold and hot air switching component is used to switch the vortex tube (5) to output cold air or hot air to the tire according to the received control signal for outputting cold air or hot air.

2. The tire temperature control system for a mining dump truck according to claim 1, It is characterized in that One of the cold air outlet and the hot air outlet of the vortex tube (5) faces the tire tread, and the other faces away from the tire. The cold and hot air switching assembly comprises a distribution plate (1), a receiving plate (4) and a servo motor (3). The distribution plate (1) is axially sealed with the receiving plate (4). A compressed air distribution passage (6) is provided in the distribution plate (1). The compressed air distribution passage (6) comprises a main air passage (7) and two branch air passages (8) connected to the main air passage (7). The main air passage (7) is connected to the compressed air pipeline of the mining dump truck. The two branch air passages (8) are connected to the distribution plate. (1) The central axis is symmetrically distributed and passes through the bottom of the distribution plate (1); a compressed air receiving air passage (9) is provided in the receiving plate (4); one end of the compressed air receiving air passage (9) corresponds to a position of a branch air passage (8) of the distribution plate (1) and is in communication with each other; the other end is fixedly connected to the inlet of the vortex tube (5); the servo motor (3) is fixedly connected to the distribution plate (1); the rotating shaft of the servo motor (3) passes through the distribution plate (1) and is fixedly connected to the receiving plate (4) for driving the receiving plate (4) to rotate relative to the distribution plate (1); and the servo motor (3) is connected to a controller.

3. The tire temperature control system for a mining dump truck according to claim 2, It is characterized in that The distribution plate (1) is fixed to the bottom of the cab, frame or cargo box above the tires.

4. The tire temperature control system for a mining dump truck according to claim 2, It is characterized in that The compressed air receiving air passage (9) is connected to the inlet of the vortex tube (5) via threads.

5. The tire temperature control system for a mining dump truck according to claim 2, It is characterized in that The compressed air receiving air passage (9) is connected to the inlet of the vortex tube (5) via a bend pipe.

6. The tire temperature control system for a mining dump truck according to claim 2, It is characterized in that The distribution plate (1) and the receiving plate (4) are both made of non-metallic material with low thermal conductivity.

7. The tire temperature control system for a mining dump truck according to claim 1, It is characterized in that The inlet of the vortex tube (5) is connected to the compressed air pipeline of the mining dump truck, and the cold and hot air switching component comprises a three-position four-way solenoid valve (10). The two inlets A and B of the three-position four-way solenoid valve (10) are respectively connected to the cold air outlet and the hot air outlet of the vortex tube (5), and the two outlets C and D are respectively connected to the tire air supply pipeline (11) and the external exhaust pipeline (12), the outlet of the tire air supply pipeline (11) faces the tire tread, and the outlet of the external exhaust pipeline (12) faces away from the tire, and the three-position four-way solenoid valve (10) is connected to a controller.

8. The tire temperature control system for a mining dump truck according to claim 7, It is characterized in that The three-position four-way solenoid valve (10) is made of a non-metallic material with low thermal conductivity.

9. A method for controlling the tire temperature of a mining dump truck. It is characterized in that Based on the mining dump truck tire temperature control system according to any one of claims 2 to 6, the method comprises: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire exceeds the upper limit, the controller sends a control signal for outputting cold air to the servo motor (3) at the tire, and the servo motor (3) drives the receiving plate (4) and the vortex tube (5) to rotate to a cold air output position according to the control signal for outputting cold air: the cold air outlet of the vortex tube (5) faces the tire tread, and the output cold air cools the tire, and the hot air outlet of the vortex tube (5) faces away from the tire, and the output hot air is directly discharged; When the tire pressure monitoring system detects that the pressure or temperature of the tire has dropped to a normal range, the controller sends a shutdown control signal to the servo motor (3) at the tire, and the servo motor (3) drives the receiving plate (4) and the vortex tube (5) to rotate to a position where the air path connected to the distribution plate (1) is disconnected according to the shutdown control signal.

10. The method for controlling the tire temperature of a mining dump truck according to claim 9, It is characterized in that Also includes: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire is lower than the lower limit, the controller sends a control signal for outputting hot air to the servo motor (3) at the tire, and the servo motor (3) drives the receiving plate (4) and the vortex tube (5) to rotate to a hot air output position according to the control signal for outputting hot air: the hot air outlet of the vortex tube (5) faces the tire tread, and the output hot air is used to heat the tire, and the cold air outlet of the vortex tube (5) faces away from the tire, and the output cold air is directly discharged; When the tire pressure monitoring system detects that the pressure or temperature of the tire has risen to within a normal range, the controller sends a shutdown control signal to the servo motor (3) at the tire, and the servo motor (3) drives the receiving plate (4) and the vortex tube (5) to rotate to a position where the air path connected to the distribution plate (1) is disconnected according to the shutdown control signal.

11. A method for controlling the tire temperature of a mining dump truck. It is characterized in that Based on the mining dump truck tire temperature control system according to claim 7 or 8, the method comprises: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire exceeds the upper limit, the controller sends a control signal for outputting cold air to the three-position four-way solenoid valve (10) at the tire, and the three-position four-way solenoid valve (10) switches the air path in the valve according to the control signal for outputting cold air, so that the inlet A is connected to the outlet C, and the inlet B is connected to the outlet D, and the cold air output by the vortex tube (5) is delivered to the tire tread through the tire air supply pipeline (11), and the hot air output by the vortex tube (5) is discharged through the external exhaust pipeline (12); When the tire pressure monitoring system detects that the pressure or temperature of the tire has dropped to a normal range, the controller sends a closing control signal to the three-position four-way solenoid valve (10) at the tire, and the three-position four-way solenoid valve (10) closes all air paths in the valve according to the closing control signal.

12. The method for controlling tire temperature of a mining dump truck according to claim 11, It is characterized in that Also includes: When the tire pressure monitoring system detects that the pressure or temperature of a certain tire is lower than the lower limit, the controller sends a control signal for outputting hot air to the three-position four-way solenoid valve (10) at the tire, and the three-position four-way solenoid valve (10) switches the air path in the valve according to the control signal for outputting hot air, so that the inlet B is connected to the outlet C, and the inlet A is connected to the outlet D, and the hot air output by the vortex tube (5) is delivered to the tire tread through the tire air supply pipeline (11), and the cold air output by the vortex tube (5) is discharged through the external exhaust pipeline (12); When the tire pressure monitoring system detects that the pressure or temperature of the tire has risen to within a normal range, the controller sends a closing control signal to the three-position four-way solenoid valve (10) at the tire, and the three-position four-way solenoid valve (10) closes all air paths in the valve according to the closing control signal.

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