A seeding and fertilizing land wheel device

Abstract

The utility model relates to agricultural machinery, concretely relates to a land wheel device for seeding and fertilizing, including four joint profiling mechanism, land wheel frame, land wheel and rotary encoder, four joint profiling mechanism includes upper connecting piece, lower connecting piece, front connecting seat and rear connecting seat form four joint frame structure and elastic connecting piece, is provided with the vehicle body connecting portion on the front connecting seat, is provided with the land wheel frame on the rear connecting seat, the land wheel frame is installed with land wheel and is used for measuring the rotary encoder of land wheel rotating speed, because four joint profiling mechanism, land wheel can adjust height according to actual operation terrain, makes land wheel always can be pasted to ground in the operation process, avoids idling, skidding, rotary encoder adopts the component that can access big dipper system, in addition to direct measurement land wheel rotating speed, still can combine big dipper system to the speed, track data of operation vehicle, judges the advancing speed of operation vehicle comprehensively, improves the precision of seeding / fertilizing.

Description

Technical Field

[0001] This utility model relates to agricultural machinery, specifically to a ground wheel device for sowing and fertilizing. Background Technology

[0002] For agricultural machinery used for precision fertilization and precision seeding, ground wheels are needed to measure speed to ensure accuracy. However, due to the varied terrain in which agricultural machinery operates, existing ground wheels are prone to problems such as idling and slippage, affecting speed measurement accuracy. To address this technical problem, this invention provides a ground wheel device that offers accurate speed measurement, high reliability, and applicability to various terrain environments. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a ground wheel device for sowing and fertilizing, which has accurate speed measurement, high reliability and can be used in a variety of complex terrains.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a ground wheel device for sowing and fertilizing, including a four-section contouring mechanism, a ground wheel frame, a ground wheel, and a rotary encoder. The four-section contouring mechanism includes a front connecting seat, a rear connecting seat, an upper connecting member, a lower connecting member, and an elastic connecting member. The front connecting seat is provided with a vehicle body connecting part. The upper connecting member and the lower connecting member are connected to the front connecting seat and rotate up and down relative to the connection point. The upper connecting member and the lower connecting member are also connected to the rear connecting seat and rotate up and down relative to the connection point. The upper connecting member is above the lower connecting member. The upper connecting member, the lower connecting member, the front connecting seat, and the rear connecting seat form a four-section frame structure. The elastic connecting member is connected to the upper connecting member and the lower connecting member. The ground wheel frame is set on the rear connecting seat, and the ground wheel is rotatably mounted on the ground wheel frame. The ground wheel frame is also provided with a rotary encoder. The rotation detection part of the rotary encoder is connected to the wheel axle of the ground wheel, and the rotary encoder collects the rotation speed of the ground wheel. The four-section contouring mechanism enables the installation of the ground wheel and adaptive height adjustment, while the rotary encoder allows for the detection of the ground wheel speed, thus improving operational accuracy.

[0005] As an optional technical solution, a limit groove is provided on the rear connecting seat, and a limit shaft is provided on the lower connecting piece. The limit shaft passes through the limit groove, and the limit shaft cooperates with the limit groove to limit the range of vertical rotation of the lower connecting piece relative to the rear connecting seat. The cooperation of the limit shaft and the limit groove can limit the height adjustment range of the rear connecting seat and the ground wheel.

[0006] As an optional technical solution, the elastic connector is inclined relative to the front connector and has a downward component force.

[0007] As an optional technical solution, the upper connector includes two upper connecting plates, with a front connecting seat and a rear connecting seat rotatably connected between the two upper connecting plates; the lower connector includes two lower connecting plates, with a front connecting seat and a rear connecting seat rotatably connected between the two lower connecting plates; the elastic connector includes a spring, an upper connecting shaft, and a lower connecting shaft. The upper connecting shaft is above the two upper connecting plates and can be adjusted along the upper connecting plates, while the lower connecting shaft is below the two lower connecting plates and can be adjusted along the lower connecting plates. One end of the spring is between the two upper connecting plates and connected to the upper connecting shaft, and the other end of the spring is between the two lower connecting plates and connected to the lower connecting shaft.

[0008] As an optional technical solution, the upper end face of the upper connecting plate is provided with several upper slots suitable for cooperating with the upper connecting shaft, and the lower end face of the lower connecting plate is provided with several lower slots suitable for cooperating with the lower connecting shaft.

[0009] As an optional technical solution, the upper connecting shaft and the lower connecting shaft are provided with mating grooves, and the upper end face of the upper connecting plate and the lower end face of the lower connecting plate are provided with a number of teeth. The mating groove of the upper connecting shaft mates with the teeth on the upper edge of each upper connecting plate, and the mating groove of the lower connecting shaft mates with the teeth on the lower edge of each lower connecting plate.

[0010] As an optional technical solution, the outer end faces of the upper and lower connecting shafts are provided with hanging grooves, and the springs cooperate with the hanging grooves of the upper and lower connecting shafts.

[0011] As an optional technical solution, the ground wheel frame includes two wheel frame side plates, and the rear connecting seat is located between the two wheel frame side plates and connected to the two wheel frame side plates. The wheel axle of the ground wheel is connected to the two wheel frame side plates through bearing components, and a rotary encoder is provided on one of the wheel frame side plates.

[0012] Compared with the prior art, the advantages of this utility model are as follows: 1. Through the four-section contouring mechanism, the ground wheel can be stably installed, adapting to various working environments. The height of the ground wheel can be adaptively adjusted to ensure that the ground wheel is always in contact with the ground, avoiding phenomena such as ground wheel slippage and free rotation; 2. The rotary encoder is used to measure the rotation speed of the ground wheel, which has the advantages of accurate speed measurement and high reliability; 3. The rotary encoder adopts a structure that can be connected to the Beidou system. It can not only directly measure the rotation speed of the ground wheel, but also comprehensively judge the travel speed of the work vehicle based on the speed, trajectory and other data of the work vehicle from the Beidou system, thereby improving the accuracy of sowing / fertilizing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the ground wheel device; Figure 2 This is a side view of the ground wheel assembly; Figure 3 This is a structural diagram of the ground wheel assembly with the upper and lower connecting plates omitted. In the diagram: 1. Four-section contouring mechanism, 11. Front connecting seat, 12. Rear connecting seat, 13. Upper connecting part, 14. Lower connecting part, 15. Vehicle body connecting part, 16. Limiting groove, 17. Limiting shaft, 18. Spring, 19. Upper connecting shaft, 110. Lower connecting shaft, 2. Ground wheel frame, 3. Ground wheel, 4. Rotary encoder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] like Figures 1-3 As shown, a seeding and fertilizing ground wheel device includes a four-section contouring mechanism 1, a ground wheel frame 2, a ground wheel 3, and a rotary encoder 4. The four-section contouring mechanism 1 includes a front connecting seat 11, a rear connecting seat 12, an upper connecting member 13, a lower connecting member 14, and an elastic connecting member. The upper connecting member 13 and the lower connecting member 14 are both connected to the front connecting seat 11, and both the upper connecting member 13 and the lower connecting member 14 can rotate up and down relative to their connection points with the front connecting seat 11. The upper connecting member 13 and the lower connecting member 14 are also connected to the rear connecting seat 12. 2. The upper connector 13 and the lower connector 14 can rotate up and down relative to the connection point of the rear connector 12. The upper connector 13 is above the lower connector 14. The upper connector 13, the lower connector 14, the front connector 11 and the rear connector 12 form a quadrilateral four-frame structure. Since the upper connector 13 can be rotatably connected to the front connector 11 and the rear connector 12, and the lower connector 14 can be rotatably connected to the front connector 11 and the rear connector 12, the four-frame structure is deformable.

[0017] Preferred, such as Figure 2As shown, the upper connector 13, the lower connector 14, the front connector 11, and the rear connector 12 form a four-panel frame structure in the shape of a parallelogram.

[0018] The front connecting seat 11 serves as the front end of the four-frame structure. A vehicle body connecting part 15 is provided on the front connecting seat 11. The vehicle body connecting part 15 can be in the form of a beam clamp or the like, and is used to connect with the beams of different working tools to improve the applicability of the equipment. The rear connecting seat 12 serves as the rear end of the four-frame structure. The ground wheel frame 2 is connected to the rear connecting seat 12. A ground wheel 3 is installed on the ground wheel frame 2. In actual use, the ground wheel 3 will be raised or lowered according to the terrain, which will drive the rear connecting seat 12 to rotate up and down relative to the front connecting seat 11.

[0019] The elastic connector is connected to the upper connector 13 and the lower connector 14. The elastic connector is used to provide the elastic force for the rear connecting seat 12 to rotate downward. When the ground wheel 3 is raised, causing the rear connecting seat 12 to rise relative to the front connecting seat 11, the elastic connector is stretched. After the ground wheel 3 crosses the raised terrain, under the action of the elastic connector, the rear connecting seat 12 rotates downward relative to the front connecting seat 11, so that the ground wheel 3 can be supported on the ground and avoid the ground wheel 3 from spinning freely or slipping.

[0020] The elastic connector is inclined relative to the front connector 11. For ease of description, please refer to [link / reference needed]. Figure 2 The distance between the connection point of the upper connector 13 and the elastic connector and the connection point of the upper connector 13 and the front connecting seat 11 is called the first distance. The distance between the connection point of the lower connector 14 and the elastic connector and the connection point of the lower connector 14 and the front connecting seat 11 is called the second distance. The first distance and the second distance are not equal. The axis of the force of the elastic connector is tilted, so that during the up and down rotation of the rear connecting seat 12 relative to the front connecting seat 11, the elastic connector always has a vertically downward component force, ensuring that the ground wheel 3 can always be close to the ground and preventing the ground wheel 3 from spinning freely. Preferably, the first distance is greater than the second distance.

[0021] A rotary encoder 4 is also installed on the ground wheel frame 2. The rotary encoder 4 is preferably a rotary speed measuring component that can be connected to the Beidou system. The rotation detection part of the rotary encoder 4 is connected to the wheel axle of the ground wheel 3. During the rotation of the ground wheel, the rotary encoder 4 can collect the rotation speed of the ground wheel 3. Combined with the Beidou system, the rotation speed of the ground wheel 3 and the trajectory, speed and other information collected by the Beidou system are used to comprehensively judge the walking speed of the ground wheel device, thereby ensuring the accuracy of the sowing and fertilizing device using the ground wheel device in this embodiment.

[0022] Please see Figure 3The rear connecting seat 12 is provided with a limiting groove 16, and the lower connecting member 14 is provided with a limiting shaft 17. The limiting shaft 17 passes through the limiting groove 16. When the rear connecting seat 12 rotates up and down relative to the front connecting seat 11, the limiting shaft 17 also moves within the range limited by the limiting groove 16. The limiting shaft 17 and the limiting groove 16 cooperate to limit the range of up and down rotation of the lower connecting member 14 relative to the rear connecting seat 12, thereby limiting the range of up and down rotation of the rear connecting seat 12 relative to the front connecting seat 11. When the working implement lifts the sowing and fertilizing device of this embodiment, the cooperation of the limiting shaft 17 and the limiting groove 16 can prevent the ground wheel device from sagging to the ground.

[0023] Please see Figures 1-3 As a specific example, the upper connector 13 includes two upper connecting plates, with a front connecting seat 11 and a rear connecting seat 12 located between the two upper connecting plates and rotatably connected to the two upper connecting plates via connecting pins or other connecting structures. The two upper connecting plates can be reinforced by a reinforcing rod or other structure. Similarly, the lower connector 14 includes two lower connecting plates, with a front connecting seat 11 and a rear connecting seat 12 located between the two lower connecting plates and rotatably connected to the two lower connecting plates via connecting pins or other connecting structures. The two lower connecting plates can be reinforced by a reinforcing rod or other structure.

[0024] The elastic connector includes a spring 18, an upper connecting shaft 19, and a lower connecting shaft 110. The upper connecting shaft 19 is located above the two upper connecting plates and can be adjusted along the movement of the upper connecting plates. The lower connecting shaft 110 is located below the two lower connecting plates and can be adjusted along the movement of the lower connecting plates. The spring 18 is connected to the upper connecting shaft 19 and the lower connecting shaft 110. Under the elastic action of the spring 18, the upper connecting shaft 19 abuts against the upper edge of the two upper connecting plates, and the lower connecting shaft 110 abuts against the lower edge of the two lower connecting plates.

[0025] In some embodiments, the upper end face of the upper connecting plate is provided with a plurality of upper slots, and the lower end face of the lower connecting plate is provided with a plurality of lower slots. The upper connecting shaft 19 is embedded into a certain upper slot and the lower connecting shaft 110 is embedded into a certain lower slot. With the tension of the spring 18, the elastic connecting member can be installed. The tension of the spring 18 can be changed by moving the upper connecting shaft 19 along the upper connecting plate to make the upper connecting shaft 19 engage with the corresponding upper slot, and / or by moving the lower connecting shaft 110 along the lower connecting plate to make the lower connecting shaft 110 engage with the corresponding lower slot, thereby adjusting the downward pressure of the ground wheel.

[0026] In other embodiments, the upper connecting shaft 19 is provided with a mating groove at the position where it abuts against the two upper connecting plates, and the lower connecting shaft 110 is also provided with a mating groove at the position where it abuts against the two lower connecting plates. The upper end face of the upper connecting plate and the lower end face of the lower connecting plate are provided with a plurality of teeth. Under the tension of the spring 18, the upper connecting shaft 19 abuts against the upper edge of the upper connecting plate, and the mating groove on the upper connecting shaft 19 engages with the teeth on the upper edge of each upper connecting plate, restricting the movement of the upper connecting shaft 19 along the upper connecting plate. The lower connecting shaft 110 abuts against the lower edge of the lower connecting plate, and the mating groove on the lower connecting shaft 110 engages with the teeth on the lower edge of each lower connecting plate, restricting the movement of the lower connecting shaft 110 along the lower connecting plate.

[0027] In addition, several connection holes can be provided on the upper and lower connecting plates, and the upper connecting plate can be connected to each other and the lower connecting plate can be connected to each other by bolts or other means.

[0028] Furthermore, the outer end face of the upper connecting shaft 19 and the outer end face of the lower connecting shaft 110 are provided with hanging grooves. The spring 18 is connected to the hanging grooves of the upper connecting shaft 19 and the lower connecting shaft 110, which can prevent the spring 18 from shifting position relative to the upper connecting shaft 19 and the lower connecting shaft 110, thus affecting the elastic effect. There can be one or more springs 18. When there are multiple springs 18, the hanging grooves on each connecting shaft are also set to be multiple accordingly.

[0029] Please see Figures 1-3 As a specific example of the ground wheel frame 2, the ground wheel frame 2 includes two wheel frame side plates, which are arranged opposite each other and connected by a connecting pin or other structure. The rear connecting seat 12 is arranged between the two wheel frame side plates and connected to both wheel frame side plates. The ground wheel frame 2 is provided with mounting holes suitable for mounting the ground wheel. The ground wheel is arranged between the two wheel frame side plates. The wheel axle of the ground wheel passes through each mounting hole and is connected to the wheel frame side plate through a bearing structure. One end of the wheel axle of the ground wheel extends out of the wheel frame side plate and is set in the form of a hexagonal shaft or the like, so as to facilitate connection and cooperation with the rotary encoder 4. The rotary encoder 4 is arranged on one of the wheel frame side plates. The rotary encoder 4 is provided with a hexagonal shaft hole or other transmission hole suitable for transmission cooperation with the wheel axle. The wheel axle of the ground wheel extends into the transmission hole of the rotary encoder 4 and is interference-fitted. The rotation of the ground wheel axle can drive the rotary encoder 4 to rotate, thereby measuring the rotational speed of the ground wheel.

[0030] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ground wheel device for sowing and fertilizing, characterized in that: The system includes a four-section contouring mechanism (1), a ground wheel frame (2), a ground wheel (3), and a rotary encoder (4). The four-section contouring mechanism (1) includes a front connecting seat (11), a rear connecting seat (12), an upper connecting member (13), a lower connecting member (14), and an elastic connecting member. The front connecting seat (11) is provided with a vehicle body connecting part (15). The upper connecting member (13) and the lower connecting member (14) are connected to the front connecting seat (11) and rotate up and down relative to the connection point. The upper connecting member (13) and the lower connecting member (14) are also connected to the rear connecting seat (12) and rotate up and down relative to the connection point. (13) Above the lower connector (14), the upper connector (13), the lower connector (14), the front connector (11) and the rear connector (12) form a four-frame structure. The elastic connector is connected to the upper connector (13) and the lower connector (14). The ground wheel frame (2) is set on the rear connector (12). The ground wheel (3) is rotatably mounted on the ground wheel frame (2). The ground wheel frame (2) is also equipped with a rotary encoder (4). The rotation detection part of the rotary encoder (4) is connected to the wheel axle of the ground wheel (3) and the rotary encoder (4) collects the rotation speed of the ground wheel (3).

2. The seeding and fertilizing ground wheel device according to claim 1, characterized in that: The rear connecting seat (12) is provided with a limiting groove (16), and the lower connecting piece (14) is provided with a limiting shaft (17). The limiting shaft (17) passes through the limiting groove (16), and the limiting shaft (17) cooperates with the limiting groove (16) to limit the range of vertical rotation of the lower connecting piece (14) relative to the rear connecting seat (12).

3. The seeding and fertilizing ground wheel device according to claim 2, characterized in that: The elastic connector is inclined relative to the front connector (11) and has a downward component force.

4. A seeding and fertilizing ground wheel device according to claim 2, characterized in that: The upper connector (13) includes two upper connecting plates, and the front connecting seat (11) and the rear connecting seat (12) are rotatably connected between the two upper connecting plates. The lower connector (14) includes two lower connecting plates, and the front connecting seat (11) and the rear connecting seat (12) are rotatably connected between the two lower connecting plates. The elastic connector includes a spring (18), an upper connecting shaft (19), and a lower connecting shaft (110). The upper connecting shaft (19) is above the two upper connecting plates and can be moved and adjusted along the upper connecting plates. The lower connecting shaft (110) is below the two lower connecting plates and can be moved and adjusted along the lower connecting plates. One end of the spring (18) is between the two upper connecting plates and connected to the upper connecting shaft (19). The other end of the spring (18) is between the two lower connecting plates and connected to the lower connecting shaft (110).

5. A seeding and fertilizing ground wheel device according to claim 4, characterized in that: The upper end face of the upper connecting plate is provided with several upper slots suitable for cooperating with the upper connecting shaft (19), and the lower end face of the lower connecting plate is provided with several lower slots suitable for cooperating with the lower connecting shaft (110).

6. A seeding and fertilizing ground wheel device according to claim 4, characterized in that: The upper connecting shaft (19) and the lower connecting shaft (110) are provided with mating grooves. The upper end face of the upper connecting plate and the lower end face of the lower connecting plate are provided with several teeth. The mating groove of the upper connecting shaft (19) mates with the teeth on the upper edge of each upper connecting plate, and the mating groove of the lower connecting shaft (110) mates with the teeth on the lower edge of each lower connecting plate.

7. A seeding and fertilizing ground wheel device according to claim 5 or 6, characterized in that: The outer end faces of the upper connecting shaft (19) and the lower connecting shaft (110) are provided with hanging grooves, and the spring (18) cooperates with the hanging grooves of the upper connecting shaft (19) and the lower connecting shaft (110).

8. A seeding and fertilizing ground wheel device according to claim 2, characterized in that: The ground wheel frame (2) includes two wheel frame side plates. The rear connecting seat (12) is located between the two wheel frame side plates and connected to the two wheel frame side plates. The wheel axle of the ground wheel (3) is connected to the two wheel frame side plates through bearing components. A rotary encoder (4) is provided on one of the wheel frame side plates.

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