Chassis gravity center self-adaptive adjusting device for agricultural machine and using method

Abstract

The invention discloses a chassis gravity center self-adaptive adjusting device for agricultural machinery and a using method, and belongs to the technical field of agricultural machinery equipment. The chassis gravity center self-adaptive adjusting device comprises an attitude sensor, a controller, a central water tank and a plurality of water distribution tanks; the multiple water distribution tanks are arranged on the periphery of the agricultural machine chassis and communicate with the central water tank through multiple water distribution pipes, and the multiple water distribution pipes are provided with multiple first electromagnetic valves correspondingly. The central water tank is provided with a central water collecting pipe connected with a water pump, the water pump is connected with multiple branch water tanks through branch water collecting pipes, and each branch water collecting pipe is provided with multiple second electromagnetic valves. Liquid level sensors are respectively arranged in the central water tank and the plurality of branch water tanks; the first solenoid valve, the second solenoid valve, the water pump, the attitude sensor and the liquid level sensor are connected with a controller, and the attitude controller is installed on an agricultural machine chassis and used for detecting the inclination angle of the chassis. The self-adaptive chassis is suitable for self-adaptive chassis adjustment of a small agricultural machine in mountainous and hilly areas so as to realize high-efficiency agricultural cultivation.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery and equipment, and in particular to a chassis center of gravity adaptive adjustment device for agricultural machinery and a use method thereof. Background Art

[0002] The terrain of plateau mountains is complex. When agricultural cultivation is carried out in hilly and mountainous areas, agricultural machinery suitable for plain areas is not suitable for mountain operations. The self-propelled drive chassis of traditional agricultural machinery have poor passability, stability and adaptability when operating in hilly and mountainous areas. During operation, agricultural machinery is prone to side slips, rollovers, unstable posture and low traction efficiency due to uneven center of gravity caused by uneven ground. In particular, small agricultural machinery used in farming in hilly and mountainous areas has problems such as low adaptability of general power chassis and low intelligence level of chassis center of gravity adjustment.

[0003] In the prior art, a body posture adjustment technology and structure are proposed to adapt agricultural machinery to operations on uneven slopes. However, the overall structure is complex, the cost is high, and the reliability is low. It is more suitable for medium and large agricultural tractors, but not for small agricultural machinery in hilly and mountainous areas. In addition, the above-mentioned body posture adjustment technology requires a supporting terrain adaptive suspension device. If it is not used in conjunction with the body posture adjustment, the agricultural machinery's implements will change at the same time, causing the problem of inconsistent plowing depth during slope operations.

[0004] Therefore, how to design and provide a small agricultural machinery chassis adaptive adjustment device suitable for agricultural cultivation in plateau mountainous and hilly areas is an important issue that needs to be solved at present. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides an adaptive adjustment device for the center of gravity of the chassis for agricultural machinery and a method for use thereof, which realizes adaptive adjustment of the center of gravity of the chassis based on the rapid distribution of liquid counterweights. The overall structure of the device is compact, the cost is low, and the reliability is high. It is more suitable for small agricultural machinery to perform adaptive chassis adjustment on uneven working surfaces in plateaus, mountains and hilly areas, thereby realizing efficient agricultural cultivation.

[0006] The technical solution of the present invention is as follows: In a first aspect of the present invention, there is provided an adaptive center of gravity adjustment device for a chassis of an agricultural machinery, characterized in that it comprises a posture sensor, a controller, a central water tank and a plurality of branch water tanks, wherein the central water tank is arranged in the middle and upper part of the chassis of the agricultural machinery, and the plurality of branch water tanks are arranged around the chassis of the agricultural machinery and are connected to the central water tank through a plurality of branch water pipes, and a plurality of first solenoid valves are respectively provided at the connection between the plurality of branch water pipes and the central water tank, the central water tank is provided with a central water collecting pipe connected to a water pump, the water pump is connected to a plurality of branch water tanks through a branch water collecting pipe, and a plurality of second solenoid valves are respectively provided at the connection between the branch water collecting pipe and the plurality of branch water tanks; liquid level sensors are respectively provided in the central water tank and the plurality of branch water tanks, the first solenoid valve, the second solenoid valve, the water pump, the posture sensor and the liquid level sensor are connected to the controller, and the posture controller is installed on the chassis of the agricultural machinery to detect the tilt angle of the chassis. In some embodiments of the present invention, the central water tank is provided with a plurality of water outlets, each of the plurality of water outlets is provided with a first solenoid valve, and the plurality of first solenoid valves are respectively connected to the water distribution pipes and communicate with the plurality of water distribution tanks. In some embodiments of the present invention, the plurality of water outlet holes are respectively arranged at the bottom of the central water tank corresponding to the plurality of water sub-tanks. In some embodiments of the present invention, the bottom of the central water tank is configured as a conical structure, and the center of the conical structure is connected to a central water collecting pipe. In some embodiments of the present invention, the water outlet of the water pump is connected to the central water collecting pipe, and the water inlet of the water pump is connected to multiple water distribution tanks through branch water collecting pipes. In some embodiments of the present invention, the branch water collecting pipe includes a first branch water collecting pipe, a second branch water collecting pipe and a third branch water collecting pipe. The first branch water collecting pipe is provided with a three-way structure in the middle to connect the water inlet of the water pump, and the two ends of the first branch water collecting pipe are respectively connected to the second branch water collecting pipe and the third branch water collecting pipe. In some embodiments of the present invention, the second branch water collecting pipe is connected to the water distribution tank located at the front side of the chassis, and the third branch water collecting pipe is connected to the water distribution tank located at the rear side of the chassis. In some embodiments of the present invention, a second solenoid valve is respectively provided at the connection between the second branch water collecting pipe and the third branch water collecting pipe and the water distribution tank. In a second aspect of the present invention, a method for using a chassis center of gravity adaptive adjustment device for an agricultural machine is provided, comprising: When the agricultural machinery is working on leveling the ground, the controller opens the first solenoid valves of the multiple water distribution tanks and stops the water pump operation according to the liquid level sensor information of the central water tank and multiple water distribution tanks. At this time, the liquid in the central water tank and multiple water distribution tanks flows rapidly to balance the center of gravity of the chassis, thereby achieving rapid weight balance for the agricultural machinery chassis.

[0007] In some embodiments of the present invention, it also includes: When the agricultural machinery is operating on uneven ground, the controller obtains the inclination angle of the chassis through the attitude sensor, and calculates the current weight of the multiple water distribution tanks in combination with the liquid level information measured by the liquid level sensors inside the central water tank and multiple water distribution tanks. The controller distributes the liquid in the central water tank and multiple water distribution tanks by controlling the start and stop of the water pump and multiple first solenoid valves and multiple second solenoid valves, and quickly balances the chassis of the agricultural machinery to balance the center of gravity of the chassis. One or more technical solutions of the present invention have the following beneficial effects: The present invention provides an adaptive chassis center of gravity adjustment device for agricultural machinery and a method for use thereof, which realizes adaptive chassis center of gravity adjustment based on rapid distribution of liquid counterweights. The overall structure of the device is compact, the cost is low, and the reliability is high. It is more suitable for small agricultural machinery to perform adaptive chassis adjustment on uneven working surfaces in plateaus, mountains and hilly areas, thereby realizing efficient agricultural cultivation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of the overall structure of a chassis center of gravity adaptive adjustment device for agricultural machinery provided in Example 1 of the present invention; Figure 2 This is a schematic top view of the overall structure of a chassis center of gravity adaptive adjustment device for agricultural machinery provided in Example 1 of the present invention.

[0009] In the figure: 1. water distribution tank; 2. water distribution pipe; 3. liquid level sensor; 4. central water tank; 5. first solenoid valve; 6. controller; 7. posture sensor; 8. water pump; 9. first branch water collecting pipe; 10. central water collecting pipe; 11. second branch water collecting pipe; 12. third branch water collecting pipe; 13. second solenoid valve. DETAILED DESCRIPTION

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] Example 1 In a typical embodiment of the present invention, Figure 1As described above, an adaptive adjustment device for the center of gravity of a chassis for agricultural machinery is proposed, characterized in that it includes a posture sensor 7, a controller 6, a central water tank 4 and multiple water branch tanks 1, the central water tank 4 is arranged in the middle and upper part of the agricultural machinery chassis, and the multiple water branch tanks 1 are arranged around the agricultural machinery chassis and connected with the central water tank 4 through multiple water branch pipes 2, and multiple first solenoid valves 5 are respectively provided at the connection between the multiple water branch pipes 2 and the central water tank 4, the central water tank 4 is provided with a central water collecting pipe 10 connected to a water pump 8, the water pump 8 is connected to the multiple water branch tanks 1 through a branch water collecting pipe, and multiple second solenoid valves 13 are respectively provided at the connection between the branch water collecting pipe and the multiple water branch tanks 1; liquid level sensors 3 are respectively provided in the central water tank 4 and the multiple water branch tanks 1, the first solenoid valve 5, the second solenoid valve 13, the water pump 8, the posture sensor 7 and the liquid level sensor 3 are connected to the controller 6, and the posture controller 6 is installed on the agricultural machinery chassis to detect the tilt angle of the chassis.

[0012] In this embodiment, the device of the present invention is integrated and installed on a small agricultural tractor, wherein a central water tank 4 is arranged in the middle and upper part of the small tractor and is filled with liquid such as clean water for counterweight, and four water distribution tanks 1 are respectively arranged at the four corners of the tractor chassis. The heights of the four water distribution tanks 1 are lower than the height of the central water tank 4, and the center of gravity adjustment of the entire device is achieved by distributing the liquid in the five water tanks.

[0013] When the tractor is operating, the attitude sensor 7 first monitors the attitude angle of the tractor in real time and feeds it back to the controller 6. The controller 6 calculates whether the current center of gravity of the tractor meets the operating requirements under the attitude according to the current liquid level height and attitude angle of the central water tank 4 and the four water distribution tanks 1. If the center of gravity position is not suitable and there is a risk of tipping over and other factors affecting normal operation, the controller 6 will distribute the liquid in each water tank by starting and stopping the water pump 8 and the solenoid valves on the pipelines at different positions, so as to realize rapid weight balance and center of gravity adjustment for the entire tractor.

[0014] The present invention provides an adaptive chassis center of gravity adjustment device for agricultural machinery, which realizes adaptive chassis center of gravity adjustment based on rapid distribution of liquid counterweight. The overall structure of the device is compact, the cost is low, and the reliability is high. It is more suitable for small agricultural machinery to perform adaptive chassis adjustment on uneven working surfaces in plateau mountains and hilly areas, thereby realizing efficient agricultural cultivation.

[0015] Furthermore, the central water tank 4 is provided with a plurality of water outlets, each of which is provided with a first solenoid valve 5, and each of the plurality of first solenoid valves 5 is connected to the water distribution pipes 2 and communicated with the plurality of water distribution tanks 1. In this embodiment, a total of four water distribution tanks 1 are provided, and four water outlets are provided to connect four first solenoid valves 5 respectively, and the other end of the first solenoid valve 5 is connected to the four water distribution pipes 2 and communicated with the four water distribution tanks 1. The opening and closing of the solenoid valve can realize the control of the liquid distribution of the four water distribution tanks 1 by the central water tank 4.

[0016] Further, a plurality of water outlet holes are respectively arranged at the bottom of the central water tank 4 corresponding to the plurality of water distribution tanks 1. In this embodiment, four water outlet holes are respectively arranged at the bottom of the central water tank 4 corresponding to the four water distribution tanks 1, so as to facilitate the circulation of the counterweight liquid.

[0017] Furthermore, the bottom of the central water tank 4 is configured as a conical structure, and the center of the conical structure is connected to a central water collecting pipe 10. In this embodiment, the conical bottom of the central water tank 4 is connected to the central water collecting pipe 10 to improve the efficiency of liquid in and out when the vehicle body is tilted, and speed up the flow of liquid when the weight is balanced.

[0018] Furthermore, the water outlet of the water pump 8 is connected to the central water collecting pipe 10, and the water inlet of the water pump 8 is connected to multiple water distribution tanks 1 through branch water collecting pipes. Furthermore, the branch water collecting pipe includes a first branch water collecting pipe 9, a second branch water collecting pipe 11 and a third branch water collecting pipe 12. A three-way structure is provided in the middle of the first branch water collecting pipe 9 to connect the water inlet of the water pump 8, and the two ends of the first branch water collecting pipe 9 are respectively connected to the second branch water collecting pipe 11 and the third branch water collecting pipe 12. Furthermore, the second branch water collecting pipe 11 is connected to the water distribution tank 1 located at the front side of the chassis, and the third branch water collecting pipe 12 is connected to the water distribution tank 1 located at the rear side of the chassis. Furthermore, second solenoid valves 13 are respectively provided at the connection points between the second branch water collecting pipe 11 and the third branch water collecting pipe 12 and the water distribution tank 1 .

[0019] In this embodiment, if Figure 2 As shown, Figure 2 The left side is the front side of the chassis. Figure 2 The right side is the rear side of the chassis. The bottom conical center box of the central water collecting tank is connected to a central water collecting pipe 10, which is connected to the water outlet of the water pump 8. The water inlet of the water pump 8 is connected to the first branch water collecting pipe 9 through a three-way connecting pipe. The two ends of the first branch water collecting pipe 9 are respectively connected to the second branch water collecting pipe 11 located on the front side of the chassis and the third branch water collecting pipe 12 located on the rear side of the chassis, wherein the second branch water collecting pipe 11 is connected to the two water distribution tanks 1 located on the front side of the chassis, and the third branch water collecting pipe 12 is connected to the two water distribution tanks 1 located on the rear side of the chassis, and the second branch water collecting pipe 11 and the third branch water collecting pipe 12 are connected to the water distribution tank 1. Second solenoid valves 13 are respectively provided at the connection between the second branch water collecting pipe 11 and the third branch water collecting pipe 12 and the water distribution tank 1.

[0020] With such arrangement, when the agricultural machine is operating on uneven ground, it is convenient to realize the liquid flow of multiple water distribution tanks 1 and further adjust the center of gravity by controlling the opening and closing of multiple second solenoid valves 13 .

[0021] In a second aspect of the present invention, a method for using a chassis center of gravity adaptive adjustment device for an agricultural machine is provided, comprising: When the agricultural machinery is working on leveling the ground, the controller 6 opens the first solenoid valves 5 of the multiple water distribution tanks 1 and stops the operation of the water pump 8 according to the information of the liquid level sensors 3 of the central water tank 4 and the multiple water distribution tanks 1. At this time, the liquid distribution in the central water tank 4 and the multiple water distribution tanks 1 flows rapidly to balance the center of gravity of the chassis, thereby realizing rapid weight balance for the chassis of the agricultural machinery.

[0022] Furthermore, it also includes: When the agricultural machinery is operating on uneven ground, the controller 6 obtains the inclination angle of the chassis through the posture sensor 7, and calculates the current counterweight of the multiple water distribution tanks 1 in combination with the liquid level information measured by the liquid level sensor 3 inside the central water tank 4 and the multiple water distribution tanks 1. The controller 6 controls the start and stop of the water pump 8 and the multiple first solenoid valves 5 and the multiple second solenoid valves 13 to distribute the liquid in the central water tank 4 and the multiple water distribution tanks 1, and quickly counterweights the agricultural machinery chassis to balance the center of gravity of the chassis.

[0023] In this embodiment, when the center of gravity shifts to the right side of the small tractor, the second solenoid valve 13 of the two left water distribution tanks 1 and the first solenoid valve 5 on the right side of the lower part of the central water tank 4 will be opened, the second solenoid valve 13 of the right water distribution tank 1 and the first solenoid valve 5 on the left side of the lower part of the central water tank 4 will be closed, and the water pump 8 will be started. The liquid in the two left water distribution tanks 1 will be pumped into the central water collecting tank and then distributed to the two right water distribution tanks 1. During this period, the controller 6 calculates the liquid counterweight of each water tank in real time according to the liquid level position fed back by each water tank, and controls the switch of the first solenoid valve 5 of the central water tank 4 according to the actual liquid distribution situation to achieve the purpose of uniform distribution. At this time, the counterweight on the right side increases, and the center of gravity of the small tractor moves to the right as a whole.

[0024] Similarly, when the center of gravity shifts to the left side of the small tractor, the second solenoid valve 13 of the two right water distribution tanks 1 and the first solenoid valve 5 on the left side of the lower part of the central water tank 4 will be opened, the second solenoid valve 13 of the left water distribution tank 1 and the first solenoid valve 5 on the right side of the lower part of the central water tank 4 will be closed, and the water pump 8 will be started. Then, the liquid in the two right water distribution tanks 1 will be pumped into the central water collecting tank and then distributed to the two left water distribution tanks 1. At this time, the left counterweight increases, and the center of gravity of the small tractor moves to the left as a whole.

[0025] It is understandable that other embodiments of the present invention also include other small tractor center of gravity offset situations, such as the center of gravity offset to the front side, rear side, left front side, left rear side, right front side and right rear side. At this time, the controller 6 obtains the inclination angle of the chassis through the posture sensor 7, and calculates the current counterweight of the multiple water distribution tanks 1 in combination with the liquid level information measured by the liquid level sensor 3 inside the central water tank 4 and the multiple water distribution tanks 1. The controller 6 controls the start and stop of the water pump 8 and the multiple first solenoid valves 5 and the multiple second solenoid valves 13 to distribute the liquid in the central water tank 4 and the multiple water distribution tanks 1, and quickly counterweights the agricultural machinery chassis to balance the center of gravity of the chassis.

[0026] Furthermore, in other embodiments of the present invention, a plurality of counterweight water distribution tanks may be provided on the chassis of the small tractor according to actual conditions, so as to adjust the center of gravity of the small tractor.

[0027] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. An adaptive center of gravity adjustment device for a chassis of an agricultural machine, characterized in that: It includes a posture sensor, a controller, a central water tank and multiple water branch tanks, the central water tank is arranged in the middle and upper part of the agricultural machinery chassis, the multiple water branch tanks are arranged around the agricultural machinery chassis and connected with the central water tank through multiple water branch pipes, and multiple first solenoid valves are respectively provided at the connection points of the multiple water branch pipes and the central water tank; the central water tank is provided with a central water collecting pipe connected to a water pump, the water pump is connected to multiple water branch tanks through branch water collecting pipes, and multiple second solenoid valves are respectively provided at the connection points of the branch water collecting pipes and the multiple water branch tanks; liquid level sensors are respectively provided in the central water tank and the multiple water branch tanks; the first solenoid valve, the second solenoid valve, the water pump, the posture sensor and the liquid level sensor are connected to the controller, and the posture controller is installed on the agricultural machinery chassis to detect the tilt angle of the chassis.

2. The agricultural machinery chassis center of gravity adaptive adjustment device according to claim 1, characterized in that: The central water tank is provided with a plurality of water outlet holes, each of which is provided with a first solenoid valve. The plurality of first solenoid valves are respectively connected to the water distribution pipes and communicate with the plurality of water distribution tanks.

3. The adaptive center of gravity adjustment device for a chassis of an agricultural machine as claimed in claim 2, characterized in that: The multiple water outlet holes are respectively arranged at the bottom of the central water tank corresponding to the multiple water distribution tanks.

4. The agricultural machinery chassis center of gravity adaptive adjustment device according to claim 1, characterized in that: The bottom of the central water tank is configured as a conical structure, and the center of the conical structure is connected to a central water collecting pipe.

5. The agricultural machinery chassis center of gravity adaptive adjustment device according to claim 1, characterized in that: The water outlet of the water pump is connected to the central water collecting pipe, and the water inlet of the water pump is connected to multiple water distribution tanks through branch water collecting pipes.

6. The agricultural machinery chassis center of gravity adaptive adjustment device according to claim 5, characterized in that: The branch water collecting pipes include a first branch water collecting pipe, a second branch water collecting pipe and a third branch water collecting pipe. A three-way structure is provided in the middle of the first branch water collecting pipe to connect the water inlet of the water pump. The two ends of the first branch water collecting pipe are respectively connected to the second branch water collecting pipe and the third branch water collecting pipe.

7. The agricultural machinery chassis center of gravity adaptive adjustment device according to claim 6, characterized in that: The second branch water collecting pipe is connected to the water distribution tank located at the front side of the chassis, and the third branch water collecting pipe is connected to the water distribution tank located at the rear side of the chassis.

8. The agricultural machinery chassis center of gravity adaptive adjustment device according to claim 7, characterized in that: A second solenoid valve is respectively provided at the connection between the second branch water collecting pipe and the third branch water collecting pipe and the water distribution tank.

9. A method for using the agricultural machinery chassis center of gravity adaptive adjustment device according to any one of claims 1 to 8, characterized in that: include: When the agricultural machinery is working on leveling the ground, the controller opens the first solenoid valves of the multiple water distribution tanks and stops the water pump operation according to the liquid level sensor information of the central water tank and multiple water distribution tanks. At this time, the liquid in the central water tank and multiple water distribution tanks flows rapidly to balance the center of gravity of the chassis, thereby achieving rapid weight balance for the agricultural machinery chassis.

10. The method for using the agricultural machinery chassis center of gravity adaptive adjustment device according to claim 9, characterized in that: Also includes: When the agricultural machinery is operating on uneven ground, the controller obtains the inclination angle of the chassis through the attitude sensor, and calculates the current weight of the multiple water distribution tanks in combination with the liquid level information measured by the liquid level sensors inside the central water tank and multiple water distribution tanks. The controller distributes the liquid in the central water tank and multiple water distribution tanks by controlling the start and stop of the water pump and multiple first solenoid valves and multiple second solenoid valves, and quickly balances the chassis of the agricultural machinery to balance the center of gravity of the chassis.

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