Automatic control device for ploughing depth of tractor and control method thereof

Abstract

The application discloses a tractor ploughing depth automatic control device and a control method thereof and relates to the technical field of tractors, which comprises a machine body, a base, a supporting table, a rotary ploughing mechanism, a drag plate and a sensor, a control cabinet is arranged on the machine body, the base is arranged on the machine body, a first connecting rod is arranged on the base, the supporting table is hingedly connected to the first connecting rod, cross beams are arranged between the two first connecting rods, first driving assemblies arranged on the cross beams are in transmission connection with the supporting table, the rotary ploughing mechanism is arranged on the supporting table, second driving assemblies arranged on the supporting table are in transmission connection with the left end of the rotary ploughing mechanism, third driving assemblies arranged on the supporting table are in transmission connection with the right end of the rotary ploughing mechanism, the drag plate is arranged on the supporting table, and the sensor is fixedly arranged on the drag plate. The application can automatically control the ploughing depth during the rotary ploughing operation, ensures the consistency of the ploughing depth and improves the efficiency of the rotary ploughing operation.

Description

Technical Field

[0001] This invention relates to the field of tractor technology, and more specifically to an automatic control device for tractor tillage depth and its control method. Background Technology

[0002] When tractors are paired with farm implements, they can complete plowing and harrowing operations. Because of their strong ability to break up soil and chop up stubble buried below the surface, they have been widely used. However, due to the unevenness of the farmland surface and the plow pan, the bottom surface after rotary tillage is uneven, and the tillage depth does not meet the requirements of agricultural production, resulting in poor rotary tillage operation effect and low operation efficiency. Summary of the Invention

[0003] To address the existing technical problems, this invention provides an automatic control device and method for tractor tillage depth, which can automatically control the tillage depth during rotary tillage operations, ensuring consistent tillage depth and improving the efficiency of rotary tillage operations.

[0004] The technical solution adopted in this invention is as follows: An automatic tillage depth control device for a tractor is provided, comprising a body, a base, a support platform, a rotary tillage mechanism, a trailer, and a sensor, with a control cabinet mounted on the body. The base is located on the body and has a first connecting rod. The support platform is hinged to one end of the first connecting rod, and a crossbeam is provided between the two first connecting rods. A first drive assembly mounted on the crossbeam is induced to drive the support platform for angle adjustment. The rotary tillage mechanism is located on the support platform, wherein a second drive assembly mounted on the support platform is induced to drive the left end of the rotary tillage mechanism, and a third drive assembly mounted on the support platform is induced to drive the right end of the rotary tillage mechanism. The second and third drive assemblies are electrically connected to the control cabinet for adjusting the tillage depth of the rotary tillage mechanism. The trailer is located on the support platform and in front of the rotary tillage mechanism. The sensor is fixed to the bottom of the trailer and electrically connected to the control cabinet for real-time sensing of the tillage height before tillage.

[0005] In some embodiments, the first drive assembly includes a first hydraulic cylinder and a first transmission arm. The first hydraulic cylinder is fixed to the crossbeam, one end of the first transmission arm is connected to the output end of the first hydraulic cylinder, and the other end is engaged with the support platform.

[0006] In some embodiments, the rotary tillage mechanism includes a mounting base, a rotating shaft, plow blades, and a rotary cylinder. The two ends of the rotating shaft are rotatably mounted inside the mounting base. The rotary cylinder is fixed to the outside of the mounting base and is drively connected to one end of the rotating shaft. A plurality of plow blades are equidistantly distributed on the outer surface of the rotating shaft along its length. A first fixing sleeve is provided on the top of the mounting base. The second drive assembly and the third drive assembly are respectively fixedly connected to the first fixing sleeve.

[0007] In some embodiments, the rotary tillage mechanism further includes an auxiliary tie rod, one end of which is hinged to a first positioning seat provided on the support platform, and the other end of which is slidably connected to a limiting block provided on the mounting base.

[0008] In some embodiments, the second drive assembly includes a second hydraulic cylinder and a second transmission arm. The second hydraulic cylinder is fixedly mounted on the support platform. One end of the second transmission arm is connected to the output end of the second hydraulic cylinder, and the other end is fixedly connected to the first fixed sleeve, so as to drive the rotary tillage mechanism to move vertically up and down.

[0009] In some embodiments, the third driving component has the same structure as the second driving component.

[0010] In some embodiments, the slide has lugs on both sides, the lugs have hanging grooves, the hanging grooves are hung on the mounting columns of the support platform, the front end face of the slide has a plurality of second positioning seats along its length, and a positioning rod is vertically inserted into the second positioning seat. The positioning rod passes through the fixing seat of the support platform, and a second fixing sleeve is provided at the end of the rod that passes through the fixing seat to fix the slide to the support platform.

[0011] In some embodiments, a spring is fitted onto the portion of the positioning rod located between the second positioning seat and the fixed seat.

[0012] In some embodiments, the bottom of the drag plate is bent forward to form a pusher end, and a plurality of sensors are disposed on the inner wall of the pusher end along the length direction of the drag plate, with a baffle covering the sensors.

[0013] On the other hand, a control method for a tractor tillage depth automatic control device is provided, the control method being based on the aforementioned tractor tillage depth automatic control device, the control method comprising: The bottom of the trailer is set as the reference. The control cabinet obtains the signal of the height difference between the bottom of the trailer and the cultivated ground measured by the sensor and defines it as the initial height. The first drive assembly, the second drive assembly and the third drive assembly receive the signal of the initial height. Subsequently, by inputting the required tillage depth into the control cabinet and transmitting the signal to the first drive assembly, the second drive assembly, and the third drive assembly, the machine body moves the base forward, which in turn moves the support platform and tills the land through the rotary tillage mechanism. When the sensor detects that the tillage position is higher and / or lower than the initial height, the angle of the support platform is adjusted by the first drive assembly, and the height of the rotary tillage mechanism is adjusted by the second and third drive assemblies to achieve the required tillage depth.

[0014] The technical solution provided in this application has the following advantages compared with the prior art: This invention uses sensors to detect the height of the tillage position in real time during rotary tillage, then adjusts the angle of the support platform through the first drive component, and adjusts the tillage depth of the rotary tillage mechanism through the second and third drive components. This allows for automatic control of the tillage depth during rotary tillage, ensuring consistent tillage depth and improving the efficiency of rotary tillage.

[0015] The present invention controls the lifting and lowering of the left end of the rotary tillage mechanism separately through the second drive component and the lifting and lowering of the right end of the rotary tillage mechanism separately through the third drive component, thereby meeting the needs of tillage depth adjustment.

[0016] The rotary tillage mechanism of this invention is a separate component that can be assembled separately and then onto the support platform to facilitate subsequent disassembly and maintenance. Furthermore, the auxiliary pull rod can improve the stability of the positions of the second and third drive components when adjusting the lifting and lowering of the mounting base.

[0017] The present invention uses a pusher end on a drag plate to flatten the position in front of the rotary tillage mechanism, so that the sensor can better monitor the height. Attached Figure Description

[0018] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a structural diagram of the tractor tillage depth automatic control device of the present invention; Figure 2 This is a structural diagram of the tractor tillage depth automatic control device of the present invention; Figure 3 This is a structural diagram of the tractor tillage depth automatic control device of the present invention; Figure 4 This is a structural diagram of the tractor tillage depth automatic control device of the present invention.

[0019] The components in the diagram are labeled as follows: 1-base, 2-support platform, 3-rotary tillage mechanism, 301-mounting seat, 302-rotating shaft, 303-plow blade, 304-rotary cylinder, 305-first fixed sleeve, 4-slide plate, 5-sensor, 6-first connecting rod, 7-crossbeam, 8-first drive assembly, 801-first cylinder, 802-first transmission arm, 9-second drive assembly, 901-second cylinder, 902-second transmission arm, 10-third drive assembly, 11-auxiliary tie rod, 12-lug, 13-mounting column, 14-second positioning seat, 15-positioning rod, 16-fixed seat, 17-second fixed sleeve, 18-spring. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0021] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] like Figure 1-4 As shown, this embodiment provides an automatic control device for tractor tillage depth, including a body (not shown), a base 1, a support platform 2, a rotary tillage mechanism 3, a trailer 4, and a sensor 5, and a control cabinet (not shown) is provided on the body; the base 1 is located on the body, and a first connecting rod 6 is provided on the base 1; the support platform 2 is hinged to one end of the first connecting rod 6, and a crossbeam 7 is provided between the two first connecting rods 6. A first drive assembly 8 is provided on the crossbeam 7 and is connected to the support platform 2. The first drive assembly 8 includes a first hydraulic cylinder 801 and a first transmission arm 802. The first hydraulic cylinder 801 is fixed to the crossbeam 7. One end of the first transmission arm 802 is connected to the output end of the first hydraulic cylinder 801, and the other end is engaged with the support platform 2. The first hydraulic cylinder 801 drives the first transmission arm 802, and the first transmission arm 802 drives the support platform 2 to rotate, so as to adjust the angle of the support platform 2.

[0026] Rotary tillage mechanism 3 is mounted on support platform 2. The second drive assembly 9 mounted on support platform 2 is connected to the left end of rotary tillage mechanism 3 via transmission, and the third drive assembly 10 mounted on support platform 2 is connected to the right end of rotary tillage mechanism 3 via transmission. The second drive assembly 9 and the third drive assembly 10 are electrically connected to control cabinet.

[0027] Reference Figure 4 As shown, the rotary tillage mechanism 3 includes a mounting base 301, a rotating shaft 302, plow blades 303, and a rotary cylinder 304. The two ends of the rotating shaft 302 are rotatably mounted inside the mounting base 301. The rotary cylinder 304 is fixed to the outside of the mounting base 301 and is connected to one end of the rotating shaft 302 for transmission. Several plow blades 303 are equidistantly distributed on the outer surface of the rotating shaft 302 along the length of the rotating shaft 302. A first fixing sleeve 305 is provided on the top of the mounting base 301.

[0028] In this application, the rotary tillage mechanism 3 is a separate component that can be assembled separately and then assembled onto the support platform 2 to facilitate subsequent disassembly and maintenance.

[0029] like Figure 2 , Figure 4 As shown, the second drive assembly 9 includes a second hydraulic cylinder 901 and a second transmission arm 902. The second hydraulic cylinder 901 is fixed to the support platform 2. One end of the second transmission arm 902 is connected to the output end of the second hydraulic cylinder 901, and the other end is fixedly connected to the first fixed sleeve 305. The second hydraulic cylinder 901 drives the second transmission arm 902 to move, thereby driving the left end of the rotary tillage mechanism 3 to move vertically up and down. The third drive assembly 10 has the same structure as the second drive assembly 9. Similarly, the third drive assembly 10 drives the right end of the rotary tillage mechanism 3 to move vertically up and down. The second drive assembly 9 controls the lifting and lowering of the left end of the rotary tillage mechanism 3 independently, and the third drive assembly 10 controls the lifting and lowering of the right end of the rotary tillage mechanism 3 independently, thus meeting the needs of adjusting the tillage depth.

[0030] The slide plate 4 is mounted on the support platform 2 and located in front of the rotary tillage mechanism 3. The sensor 5 is fixed to the bottom of the slide plate 4 and electrically connected to the control cabinet. It is used to sense the height of the tillage before tillage in real time. During the rotary tillage operation, the sensor 5 detects the height of the tillage position in real time. Then, the angle of the support platform 2 is adjusted by the first drive component 8, and the tillage depth of the rotary tillage mechanism 3 is adjusted by the second drive component 9 and the third drive component 10. The tillage depth can be automatically controlled during the rotary tillage operation to ensure consistent tillage depth and improve the efficiency of the rotary tillage operation.

[0031] The control methods of the tractor tillage depth automatic control device include: The bottom of the trailer 4 is set as the reference. The control cabinet obtains the signal of the height difference between the bottom of the trailer 4 and the cultivated ground measured by the sensor 5 and defines it as the initial height. The first drive assembly 8, the second drive assembly 9 and the third drive assembly 10 receive the signal of the initial height. Subsequently, by inputting the required tillage depth into the control cabinet and transmitting the signal to the first drive assembly 8, the second drive assembly 9, and the third drive assembly 10, the machine body moves the base 1 forward, and the base 1 drives the support platform 2, and the rotary tillage mechanism 3 performs tillage operations. When the sensor detects that the tillage position is higher and / or lower than the initial height, the angle of the support platform 2 is adjusted by the first drive assembly 8, and the height of the rotary tillage mechanism 3 is adjusted by the second drive assembly 9 and the third drive assembly 10 to achieve the required tillage depth.

[0032] In another embodiment, the rotary tillage mechanism 3 further includes an auxiliary pull rod 11. One end of the auxiliary pull rod 11 is hinged to the first positioning seat provided on the support platform 2, and the other end is slidably connected to the limiting block provided on the mounting base 301. The auxiliary pull rod 11 can improve the stability of the position of the second drive assembly 9 and the third drive assembly 10 when adjusting the lifting and lowering of the mounting base 301.

[0033] The slide plate 4 has lugs 12 on both sides, and the lugs 12 have hanging grooves. The hanging grooves are hung on the mounting posts 13 provided on the support platform 2. The front end face of the slide plate 4 has multiple second positioning seats 14 along its length direction, and a positioning rod 15 is vertically inserted into the second positioning seat 14. The positioning rod 15 passes through the fixed seat 16 provided on the support platform 2, and a second fixing sleeve 17 is provided at the end of the positioning rod 15 that passes through the fixed seat 16. During assembly, the end of the positioning rod 15 inserted into the second positioning seat 14 is fixed by bolts. The second fixing sleeve 17 is threadedly connected to the part of the positioning rod 15 that extends out of the fixed seat 16. The positioning rod 15 is fixed by tightening the second fixing sleeve 17 to fix the slide plate 4 to the support platform 2.

[0034] Furthermore, a spring 18 is fitted on the positioning rod 15 between the second positioning seat 14 and the fixed seat 16, which can buffer the slide plate 4 during operation.

[0035] The bottom of the slide plate 4 is bent forward and has a pusher end. Multiple sensors 5 are arranged on the inner wall of the pusher end along the length of the slide plate 4. A baffle is provided to cover the sensors 5. The pusher end of the slide plate 4 pushes the position in front of the rotary tillage mechanism 3 flat so that the sensors can better monitor the height.

[0036] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An automatic control device for tractor tillage depth, characterized in that, include, The machine body, and a control cabinet is provided on the machine body; A base is provided on the machine body, and a first connecting rod is provided on the base; A support platform is hinged to one end of the first connecting rod, and a crossbeam is provided between the two first connecting rods. A first driving component on the crossbeam is connected to the support platform for adjusting the angle of the support platform. A rotary tillage mechanism is provided on the support platform, wherein a second drive component on the support platform is drivenly connected to the left end of the rotary tillage mechanism, and a third drive component on the support platform is drivenly connected to the right end of the rotary tillage mechanism. The second drive component and the third drive component are electrically connected to the control cabinet to adjust the tillage depth of the rotary tillage mechanism. The slide plate is mounted on the support platform and located in front of the rotary tillage mechanism; The sensor, which is fixed to the bottom of the trailer and electrically connected to the control cabinet, is used to sense the height of the tilled land in real time before tilling.

2. The tractor tillage depth automatic control device according to claim 1, characterized in that, The first drive assembly includes a first hydraulic cylinder and a first transmission arm. The first hydraulic cylinder is fixed to the crossbeam, one end of the first transmission arm is connected to the output end of the first hydraulic cylinder, and the other end is engaged with the support platform.

3. The tractor tillage depth automatic control device according to claim 1, characterized in that, The rotary tillage mechanism includes a mounting base, a rotating shaft, plow blades, and a rotating cylinder. The two ends of the rotating shaft are rotatably mounted inside the mounting base. The rotating cylinder is fixed to the outside of the mounting base and is connected to one end of the rotating shaft. A plurality of plow blades are equidistantly distributed on the outer surface of the rotating shaft along its length. A first fixing sleeve is provided on the top of the mounting base. The second drive assembly and the third drive assembly are respectively fixedly connected to the first fixing sleeve.

4. The tractor tillage depth automatic control device according to claim 3, characterized in that, The rotary tillage mechanism also includes an auxiliary tie rod, one end of which is hinged to the first positioning seat of the support platform, and the other end of which is slidably connected to the limiting block of the mounting base.

5. The tractor tillage depth automatic control device according to claim 1, characterized in that, The second drive assembly includes a second hydraulic cylinder and a second transmission arm. The second hydraulic cylinder is fixedly mounted on the support platform. One end of the second transmission arm is connected to the output end of the second hydraulic cylinder, and the other end is fixedly connected to the first fixed sleeve, for driving the rotary tillage mechanism to move vertically up and down.

6. The tractor tillage depth automatic control device according to claim 1, characterized in that, The third driving component has the same structure as the second driving component.

7. The tractor tillage depth automatic control device according to claim 1, characterized in that, The slide has lugs on both sides, and the lugs have hanging grooves. The hanging grooves are hung on the mounting columns of the support platform. The front end face of the slide has multiple second positioning seats along its length, and a positioning rod is vertically inserted into the second positioning seat. The positioning rod passes through the fixing seat of the support platform, and a second fixing sleeve is provided at the end of the rod that passes through the fixing seat to fix the slide to the support platform.

8. The tractor tillage depth automatic control device according to claim 7, characterized in that, A spring is fitted onto the part of the positioning rod located between the second positioning seat and the fixed seat.

9. The tractor tillage depth automatic control device according to claim 7, characterized in that, The bottom of the drag plate is bent forward to form a pusher end, and multiple sensors are arranged along the length of the drag plate on the inner wall of the pusher end. A baffle is provided to cover the sensors.

10. A control method for an automatic tractor tillage depth control device, characterized in that, The control method is based on the tractor tillage depth automatic control device according to claim 1, and the control method includes... The bottom of the trailer is set as the reference. The control cabinet obtains the signal of the height difference between the bottom of the trailer and the cultivated ground measured by the sensor and defines it as the initial height. The first drive assembly, the second drive assembly and the third drive assembly receive the signal of the initial height. Subsequently, by inputting the required tillage depth into the control cabinet and transmitting the signal to the first drive assembly, the second drive assembly, and the third drive assembly, the machine body moves the base forward, which in turn moves the support platform and tills the land through the rotary tillage mechanism. When the sensor detects that the tillage position is higher and / or lower than the initial height, the angle of the support platform is adjusted by the first drive assembly, and the height of the rotary tillage mechanism is adjusted by the second and third drive assemblies to achieve the required tillage depth.

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