Agricultural trailer inflation and deflation system and method and trailer

Abstract

The invention provides an agricultural trailer inflation and deflation system and method and a trailer. An agricultural trailer inflation and deflation system comprises a control valve set, an air source connector, a plurality of wheel side valves, a plurality of tires, a trailer axle and an ISOBUS connector, the control valve set is connected with the air source connector and the wheel side valves through pipelines, the wheel side valves are connected with the tires, the tires are connected with the trailer axle, and the ISOBUS connector is connected with the trailer axle. The tires are installed on the trailer axle, and the ISOBUS connector is connected with the control valve set.

Description

Technical Field

[0001] The invention relates to the technical field of trailer inflation and deflation, and in particular to an agricultural trailer inflation and deflation system, method and trailer. Background Art

[0002] Agricultural wheeled trailers are generally used for soil field transportation operations and road transportation operations. During field operations, low air pressure has the effect of increasing the contact area between the tire and the soil, thereby reducing soil compaction and increasing field traction. After the tire sinks, the wedge angle of the field soil is reduced (Explanation: The more the tire sinks into the soil, the greater the force required to change the shape of the soil to move forward.) Thus, soil resistance is reduced. Low air pressure also has the effect of reducing tire slippage during field operations, thereby further increasing traction and reducing fuel consumption. In road transportation operations, high air pressure has the effect of reducing fuel consumption rate and reducing tire wear. High air pressure, under road conditions, reduces rolling resistance, thereby reducing fuel consumption rate, because the number of tire treads contacting the ground is reduced, thereby reducing tire wear, and during high-speed transportation operations, the deflection of the tire is reduced, thereby reducing friction heat in the tire, thereby reducing the risk of tire blowout. Under the current situation, tire pressure is generally adjusted manually, but because agricultural machinery road soil operations are frequently switched, manual adjustment is cumbersome. Or an intermediate air pressure method is adopted. With the intermediate air pressure method, the best tire working conditions cannot be obtained on roads and fields. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an agricultural trailer inflation and deflation system, method and trailer in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: an agricultural trailer inflation and deflation system, comprising: a control valve group, an air source connector, multiple wheel-side valves, multiple tires, a trailer axle, and an ISOBUS connector. The control valve group is respectively connected to the air source connector and the multiple wheel-side valves through pipelines, the multiple wheel-side valves are respectively connected to the multiple tires, the multiple tires are respectively installed on the trailer axle, and the ISOBUS connector is connected to the control valve group.

[0005] The beneficial effects of the technical solution of the present invention are: having an ISOBUS connector, it can perfectly match a tractor with an ISOBUS function, and the air source is connected from the tractor through the air source connector. The control valve group inflates and deflates the trailer tires, thereby adapting to soil field transportation and road transportation operations. When entering the road, the tire pressure is increased, thereby increasing the tire load, reducing tire flexural deformation, and reducing endogenous heat. When entering the field soil operation, the tire pressure can be appropriately reduced, thereby increasing the contact area between the tire and the soil, thereby reducing soil compaction and reducing the soil wedge angle caused by soil subsidence, thereby reducing soil resistance and achieving the effect of saving fuel.

[0006] Further, the control valve group is connected to a controller, the controller is connected to the ISOBUS connector, and the controller is connected to a display.

[0007] The beneficial effect of adopting the above further technical solution is that: according to the driver's operation in the cab, the signal can be transmitted to the controller through the ISOBUS connector, and the controller controls the control valve group to inflate and deflate the trailer tires, thereby adapting to soil field transportation and road transportation operations.

[0008] Furthermore, the control valve group is provided with an air release port.

[0009] The beneficial effect of adopting the above further technical solution is that the control valve group has a venting port, which is used to deflate the automatic inflation and deflation system.

[0010] Furthermore, the gas source connector is connected to a gas source.

[0011] The beneficial effect of adopting the above further technical solution is that the air source is connected from the tractor through the air source connector, which makes it convenient to inflate the tire.

[0012] Furthermore, the control valve group is equipped with a built-in pressure sensor.

[0013] The beneficial effect of adopting the above further technical solution is that the control valve group is equipped with a built-in pressure sensor to facilitate monitoring of tire pressure.

[0014] Furthermore, the wheel side valve has an air inlet at a fixed position and a rotatable air outlet, the air inlet is connected to the control valve group, and the air outlet is connected to the tire through a valve.

[0015] The beneficial effect of adopting the above further technical solution is that the wheel side valve has a fixed air inlet and a rotating air outlet, thereby achieving a connecting effect. The wheel side valve is connected to the tire valve nozzle for inflating and deflation of the tire.

[0016] In addition, the present invention also provides a trailer, comprising an agricultural trailer inflation and deflation system as described in any one of the above.

[0017] The beneficial effects of the technical solution of the present invention are: having an ISOBUS connector, it can perfectly match a tractor with an ISOBUS function, and the air source is connected from the tractor through the air source connector. The control valve group inflates and deflates the trailer tires, thereby adapting to soil field transportation and road transportation operations. When entering the road, the tire pressure is increased, thereby increasing the tire load, reducing tire flexural deformation, and reducing endogenous heat. When entering the field soil operation, the tire pressure can be appropriately reduced, thereby increasing the contact area between the tire and the soil, thereby reducing soil compaction and reducing the soil wedge angle caused by soil subsidence, thereby reducing soil resistance and achieving the effect of saving fuel.

[0018] In addition, the present invention also provides an agricultural trailer inflation and deflation method, which is based on an agricultural trailer inflation and deflation system described in any one of the above items, and the agricultural trailer inflation and deflation method includes: S1, the controller receives a signal through the ISOBUS connector that the air pressure needs to be increased to a first target air pressure; S2, the control valve group is controlled to conduct the gas in the air source connector to multiple wheel side valves, so that the multiple wheel side valves are opened; S3, the multiple wheel side valves respectively fill the gas into multiple tires until the air pressure of the multiple tires reaches the first target air pressure; S4, the controller receives a signal through the ISOBUS connector that the air pressure needs to be lowered to a second target air pressure; S5, the air outlet of the control valve group is controlled to be opened, so that the gas in the multiple tires is discharged through the multiple wheel side valves and the air outlet until the air pressure of the multiple tires reaches the second target air pressure.

[0019] The beneficial effects of the technical solution of the present invention are as follows: in the case of inflation, when the controller receives a signal through ISOBUS that the air pressure needs to be increased, the controller operates the control valve group, and the control valve group controls the high-pressure gas in the air source connector to enter the wheel side valve through the pipeline and then enter the tire. In the case of deflation, when the controller receives a signal through ISOBUS that the air pressure needs to be lowered, the controller operates the control valve group, the control valve group deflation port is opened, and then the gas in the tire enters the pipeline through the wheel side valve and is discharged from the deflation port.

[0020] Furthermore, after step S3, the method includes: controlling the control valve group to close and stop inflating the tire; and after step S5, the method includes: controlling the deflation port of the control valve group to close and stop deflation of the tire.

[0021] The beneficial effect of adopting the above further technical solution is: when it is detected that the air pressure reaches the required value, the control valve group is closed, thereby stopping the tire from being inflated. When it is detected that the air pressure reaches the required value, the air release port of the control valve group is closed.

[0022] Furthermore, it also includes: S6, when the tire pressure is maintained, the tire pressure is detected in real time by controlling the valve group; S7, when the tire pressure changes, the controller generates an alarm signal; S8, the controller transmits the alarm signal to the display through the ISOBUS connector.

[0023] The beneficial effects of adopting the above further technical solution are: the tire pressure is maintained, the control valve group detects the air pressure in real time, and when the air pressure changes suddenly, a signal is transmitted to the controller, and then an alarm is transmitted, and the alarm signal is transmitted to the display in the cab through ISOBUS. The inflation and deflation signals and error signals are transmitted to the display device in the cab through ISOBUS.

[0024] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of an agricultural trailer inflation and deflation system provided in an embodiment of the present invention.

[0026] Figure 2 A schematic flowchart of a method for inflating and deflation of an agricultural trailer provided in an embodiment of the present invention.

[0027] Explanation of the accompanying figures: 1. Control valve group; 2. Air source connector; 3. Wheel side valve; 4. Tire; 5. ISOBUS connector; 6. Controller; 7. Air vent. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention but not to limit the scope of the present invention.

[0029] like Figure 1 As shown, an embodiment of the present invention provides an agricultural trailer inflation and deflation system, including: a control valve group 1, an air source connector 2, multiple wheel-side valves 3, multiple tires 4, a trailer axle, and an ISOBUS connector 5. The control valve group 1 is connected to the air source connector 2 and the multiple wheel-side valves 3 through pipelines, respectively, the multiple wheel-side valves 3 are connected to the multiple tires 4, respectively, the multiple tires 4 are installed on the trailer axle, and the ISOBUS connector 5 is connected to the control valve group 1.

[0030] The beneficial effects of the technical solution of the present invention are: having an ISOBUS connector, it can perfectly match a tractor with an ISOBUS function, and the air source is connected from the tractor through the air source connector. The control valve group inflates and deflates the trailer tires, thereby adapting to soil field transportation and road transportation operations. When entering the road, the tire pressure is increased, thereby increasing the tire load, reducing tire flexural deformation, and reducing endogenous heat. When entering the field soil operation, the tire pressure can be appropriately reduced, thereby increasing the contact area between the tire and the soil, thereby reducing soil compaction and reducing the soil wedge angle caused by soil subsidence, thereby reducing soil resistance and achieving the effect of saving fuel.

[0031] Figure 1 The dotted line in the figure represents signal transmission.

[0032] An embodiment of the present invention provides an agricultural trailer inflation and deflation system, which can be a new type of automatic inflation and deflation system for agricultural trailers. The system has an ISOBUS interface (ISOBUS connector) and can perfectly match a tractor with an ISOBUS function. The system is connected to the air source from the tractor through an air source connector. The system can transmit signals to the controller through the ISOBUS interface (ISOBUS connector 5) according to the driver's operation in the cab. The controller controls the control valve group to inflate and deflate the trailer tires, thereby adapting to soil field transportation and road transportation operations. The wheel side valve has a fixed-position air inlet and a rotating air outlet, thereby achieving a communication effect.

[0033] The present invention is composed of an ISOBUS interface (ISOBUS connector 5), an air source connector, a controller, a control valve group, and a wheel side valve. The control valve group has a deflation port, which is used to deflate the automatic inflation and deflation system (agricultural trailer inflation and deflation system), and the wheel side valve is connected to the valve of the tire to inflate and deflate the tire.

[0034] like Figure 1 As shown, further, the control valve group 1 is connected to a controller 6, the controller 6 is connected to the ISOBUS connector 5, and the controller 6 is connected to a display.

[0035] The beneficial effect of adopting the above further technical solution is that: according to the driver's operation in the cab, the signal can be transmitted to the controller through the ISOBUS connector, and the controller controls the control valve group to inflate and deflate the trailer tires, thereby adapting to soil field transportation and road transportation operations.

[0036] Among them, the display can be installed in the cab.

[0037] like Figure 1 As shown, further, the control valve group 1 is provided with an air release port 7.

[0038] The beneficial effect of adopting the above further technical solution is that the control valve group has a venting port, which is used to deflate the automatic inflation and deflation system.

[0039] Furthermore, the gas source connector 2 is connected to a gas source.

[0040] The beneficial effect of adopting the above further technical solution is that the air source is connected from the tractor through the air source connector, which makes it convenient to inflate the tire.

[0041] Furthermore, the control valve group 1 has a built-in pressure sensor.

[0042] The beneficial effect of adopting the above further technical solution is that the control valve group is equipped with a built-in pressure sensor to facilitate monitoring of tire pressure.

[0043] like Figure 1 As shown, further, the wheel side valve 3 has an air inlet at a fixed position and a rotatable air outlet, the air inlet is connected to the control valve group 1, and the air outlet is connected to the tire 4 through a valve.

[0044] The beneficial effect of adopting the above further technical solution is that the wheel side valve has a fixed air inlet and a rotating air outlet, thereby achieving a connecting effect. The wheel side valve is connected to the tire valve nozzle for inflating and deflation of the tire.

[0045] In addition, the present invention also provides a trailer, comprising an agricultural trailer inflation and deflation system as described in any one of the above.

[0046] The beneficial effects of the technical solution of the present invention are: having an ISOBUS connector, it can perfectly match a tractor with an ISOBUS function, and the air source is connected from the tractor through the air source connector. The control valve group inflates and deflates the trailer tires, thereby adapting to soil field transportation and road transportation operations. When entering the road, the tire pressure is increased, thereby increasing the tire load, reducing tire flexural deformation, and reducing endogenous heat. When entering the field soil operation, the tire pressure can be appropriately reduced, thereby increasing the contact area between the tire and the soil, thereby reducing soil compaction and reducing the soil wedge angle caused by soil subsidence, thereby reducing soil resistance and achieving the effect of saving fuel.

[0047] like Figure 2As shown, in addition, the present invention also provides an agricultural trailer inflation and deflation method, based on an agricultural trailer inflation and deflation system described in any one of the above, the agricultural trailer inflation and deflation method includes: S1, the controller receives a signal that the air pressure needs to be increased to a first target air pressure through the ISOBUS connector; S2, the control valve group is controlled to conduct the gas in the air source connector to multiple wheel side valves, so that the multiple wheel side valves are opened; S3, the multiple wheel side valves respectively fill the gas into multiple tires until the air pressure of the multiple tires reaches the first target air pressure; S4, the controller receives a signal that the air pressure needs to be lowered to a second target air pressure through the ISOBUS connector; S5, the air outlet of the control valve group is controlled to be opened, so that the gas in the multiple tires is discharged through the multiple wheel side valves and the air outlet until the air pressure of the multiple tires reaches the second target air pressure.

[0048] The beneficial effects of the technical solution of the present invention are as follows: in the case of inflation, when the controller receives a signal through ISOBUS that the air pressure needs to be increased, the controller operates the control valve group, and the control valve group controls the high-pressure gas in the air source connector to enter the wheel side valve through the pipeline and then enter the tire. In the case of deflation, when the controller receives a signal through ISOBUS that the air pressure needs to be lowered, the controller operates the control valve group, the control valve group deflation port is opened, and then the gas in the tire enters the pipeline through the wheel side valve and is discharged from the deflation port.

[0049] Furthermore, after step S3, the method includes: controlling the control valve group to close and stop inflating the tire; and after step S5, the method includes: controlling the deflation port of the control valve group to close and stop deflation of the tire.

[0050] The beneficial effect of adopting the above further technical solution is: when it is detected that the air pressure reaches the required value, the control valve group is closed, thereby stopping the tire from being inflated. When it is detected that the air pressure reaches the required value, the air release port of the control valve group is closed.

[0051] Furthermore, it also includes: S6, when the tire pressure is maintained, the tire pressure is detected in real time by controlling the valve group; S7, when the tire pressure changes, the controller generates an alarm signal; S8, the controller transmits the alarm signal to the display through the ISOBUS connector.

[0052] The beneficial effects of adopting the above further technical solution are: the tire pressure is maintained, the control valve group detects the air pressure in real time, and when the air pressure changes suddenly, a signal is transmitted to the controller, and then an alarm is transmitted, and the alarm signal is transmitted to the display in the cab through ISOBUS. The inflation and deflation signals and error signals are transmitted to the display device in the cab through ISOBUS.

[0053] The following will describe the four working conditions of inflation, deflation and tire pressure maintenance.

[0054] Inflation situation: when the controller receives a signal through ISOBUS that the air pressure needs to be increased, the controller operates the control valve group, and the control valve group controls the high-pressure gas in the air source connector to enter the wheel side valve through the pipeline, and then enter the tire. When it is detected that the air pressure reaches the required value, the control valve group closes, thereby stopping inflating the tire.

[0055] In the case of deflation, when the controller receives a signal through ISOBUS that the air pressure needs to be lowered, the controller operates the control valve group, the deflation port of the control valve group is opened, and then the gas in the tire enters the pipeline through the wheel side valve and is discharged from the deflation port. When it is detected that the air pressure reaches the required value, the deflation port of the control valve group is closed.

[0056] The control valve group detects the air pressure in real time to maintain the tire pressure. When the air pressure changes suddenly, a signal is transmitted to the controller, which then alarms. The alarm signal is transmitted to the display device (display) in the cab via ISOBUS.

[0057] 1. The present invention transmits the inflation and deflation signals and the error signals to the display device (display) in the cab via ISOBUS.

[0058] 2. The present invention can control modes such as inflation, deflation, and tire pressure monitoring.

[0059] The agricultural trailer inflation and deflation system provided by the present invention is a novel trailer automatic inflation and deflation system structure. When entering the road, the tire pressure is increased, thereby increasing the tire load, reducing tire flexural deformation, and reducing internal heat. When entering the field soil operation, the tire pressure can be appropriately reduced to increase the contact area between the tire and the soil, thereby reducing soil compaction and reducing the soil wedge angle caused by soil subsidence, thereby reducing soil resistance and achieving the effect of saving fuel.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An agricultural trailer inflation and deflation system, characterized in that: include: A control valve group, an air source connector, multiple wheel-side valves, multiple tires, a trailer axle, and an ISOBUS connector. The control valve group is connected to the air source connector and the multiple wheel-side valves through pipelines, the multiple wheel-side valves are connected to the multiple tires, the multiple tires are installed on the trailer axle, and the ISOBUS connector is connected to the control valve group.

2. The agricultural trailer inflation and deflation system according to claim 1, characterized in that: The control valve group is connected to a controller, the controller is connected to the ISOBUS connector, and the controller is connected to a display.

3. The agricultural trailer inflation and deflation system according to claim 1, characterized in that: The control valve group is provided with an air release port.

4. The agricultural trailer inflation and deflation system according to claim 1, characterized in that: The gas source connector is connected to a gas source.

5. The agricultural trailer inflation and deflation system according to claim 1, characterized in that: The control valve group is equipped with a pressure sensor.

6. The agricultural trailer inflation and deflation system according to claim 1, characterized in that: The wheel side valve has an air inlet at a fixed position and a rotatable air outlet, wherein the air inlet is connected to the control valve group, and the air outlet is connected to the tire through a valve.

7. A trailer, characterized in that: An agricultural trailer inflation and deflation system comprising the above-mentioned one of claims 1 to 6.

8. A method for inflating and deflation of an agricultural trailer, characterized in that: Based on the agricultural trailer inflation and deflation system according to any one of claims 1 to 6 above, the agricultural trailer inflation and deflation method comprises: S1. The controller receives a signal through the ISOBUS connector that the air pressure needs to be increased to the first target air pressure; S2, controlling the control valve group to conduct the gas in the gas source connector to the multiple wheel side valves, so that the multiple wheel side valves are opened; S3, the plurality of wheel side valves respectively inflate the gas into the plurality of tires until the air pressure of the plurality of tires reaches the first target air pressure; S4, the controller receives a signal through the ISOBUS connector that the air pressure needs to be lowered to the second target air pressure; S5. Control the deflation port of the control valve group to open, so that the gas in the multiple tires is discharged through the multiple wheel side valves and the deflation port until the air pressure of the multiple tires reaches the second target air pressure.

9. The method for inflating and deflation of an agricultural trailer according to claim 8, characterized in that: The steps after step S3 include: controlling the control valve group to close and stop inflating the tire; The process after step S5 includes: controlling the deflation port of the control valve group to close, and stopping deflation of the tire.

10. The method for inflating and deflation of an agricultural trailer according to claim 8, characterized in that: Also includes: S6: Under the condition of tire pressure maintenance, the tire pressure is detected in real time through the control valve group; S7, when the tire pressure changes, the controller generates an alarm signal; S8. The controller transmits the alarm signal to the display via the ISOBUS connector.

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