Walking steering device and mini-tiller

Abstract

The utility model discloses a walking steering device which comprises a first shaft, a second shaft, a third shaft and a bearing, the first shaft is provided with a first gear and a first shaft sleeve, the first shaft sleeve is provided with a return mechanism, the return mechanism is provided with a second gear, and the return mechanism is fixedly connected with a steering shifting fork. According to the utility model, the jaw clutch is arranged on the last but one shaft of the driven walking part, so that the mini-tiller is more flexible and convenient to steer, and the position of the steering shifting fork is higher, so that the mini-tiller is less prone to being corroded by muddy water.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery field especially relates to a walking steering device and micro plough. BACKGROUND

[0002] As an important tool of modern agricultural mechanized production, the reliability and the control convenience of the steering system of micro plough directly influence field work efficiency. The end transmission shaft arrangement mode is usually adopted to the toothed clutch steering mechanism of the traditional micro plough, and the toothed clutch is arranged on the penultimate shaft or second shaft of the walking mechanism.

[0003] This structure design has obvious technical defects: first, when the toothed gear is installed in the last stage or the second last stage of the end transmission chain, the ground reaction force is transmitted to the meshing surface of the toothed gear through the driving wheel, so that a larger axial force needs to be overcome when separating, especially in the paddy field or soft ground with large soil resistance, the toothed gear is easily locked and cannot be separated, which leads to difficult steering operation; secondly, the steering yoke shaft in the existing structure is generally arranged at the lower part of the transmission system, and is easy to rust and jam due to long-term contact with mud and water mixture, which significantly reduces the service life of the mechanism; thirdly, the traditional arrangement mode requires higher physical strength of the operator, and is easy to cause operation fatigue during continuous operation. Therefore, how to develop a new type of micro plough has become a problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a walking steering device and micro plough, through setting toothed clutch on the third from the walking shaft, the micro plough can be more flexible and convenient when steering, and the position of the steering yoke is higher, so it is less likely to be corroded by mud and water. In order to achieve the above-mentioned purpose, the specific technical scheme of the walking steering device and micro plough of the utility model is as follows:

[0005] A walking steering device, comprising a first shaft, a second shaft, a third shaft and a bearing, the first shaft is provided with a first gear and a first shaft sleeve, the first shaft sleeve is provided with a return mechanism, the return mechanism is provided with a second gear, and the return mechanism is fixedly connected with a steering yoke.

[0006] Compared to existing technologies, the advantages of this invention are as follows: By placing the return mechanism and steering fork on the first axle (third to last axle) of the travel path, the ground exerts less force on the engagement of the jaws. The jaws experience less force and are easier to disengage. This results in more flexible and effortless steering compared to other front-mounted tillers where the return mechanism and steering fork are on the second (last) or third (second) axle of the travel path. In fields or paddy fields, if the return mechanism and steering fork are on the second (last) or third (second) axle, they may not disengage, leading to steering difficulties. However, by placing the return mechanism and steering fork on the first (last) axle, the tiller can be flexibly steered. Furthermore, because the steering fork is positioned higher, it is less susceptible to corrosion from mud and water, reducing component damage and maintenance costs.

[0007] Furthermore, the return mechanism is provided with a second bushing, and an elastic element is provided inside the second bushing. A gasket is provided between the first bushing and the bearing, and the elastic element is in contact with the gasket.

[0008] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by providing a second bushing on the return mechanism, and providing an elastic element inside the second bushing, and by providing a shim between the first bushing and the bearing, the elastic element and the shim come into contact, thereby enabling the second bushing to return to its original position through the cooperation of the second bushing, the elastic element, and the shim.

[0009] Furthermore, the second shaft is provided with a third gear, which is connected to the second gear in a transmission manner.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is that by installing a third gear on the second shaft, the third gear is connected to the second gear in a transmission connection, so that the power on the first shaft is transmitted to the second shaft through the meshing transmission of the third gear and the second gear.

[0011] Furthermore, the third shaft is provided with a fourth shaft, the fourth shaft is provided with a fourth gear, and the fourth gear is connected to the third gear in a transmission connection.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is that by setting a fourth shaft on the third shaft and setting a fourth gear on the fourth shaft, the fourth gear is connected to the third gear for transmission, so that the power of the second shaft is transmitted to the fourth shaft through the meshing transmission of the fourth gear and the third gear.

[0013] Furthermore, the steering fork includes a first steering fork and a second steering fork, the return mechanism includes a first return mechanism and a second return mechanism; the second gear includes a second left gear and a second right gear.

[0014] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the steering fork is divided into a first steering fork and a second steering fork, so that the operator can control the direction of travel through the first steering fork and the second steering fork respectively; the return mechanism is divided into a first return mechanism and a second return mechanism, so that the first steering fork and the second steering fork can cooperate with the first return mechanism and the second return mechanism respectively; the second gear is divided into a second left gear and a second right gear, so that the second left gear can be controlled through the first steering fork and the first return mechanism, and the second right gear can be controlled through the second steering fork and the second return mechanism.

[0015] Furthermore, the third gear includes a third left gear and a third right gear.

[0016] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by dividing the third gear into a third left gear and a third right gear, the third left gear can mesh with the second left gear for transmission, and the third right gear can mesh with the second right gear for transmission, thereby realizing the separate transmission or stopping of the third left gear and the third right gear.

[0017] Furthermore, the fourth shaft includes a fourth left shaft and a fourth right shaft; the fourth gear includes a fourth left gear and a fourth right gear.

[0018] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the fourth shaft is divided into a fourth left shaft and a fourth right shaft, so that the fourth left shaft and the fourth right shaft can be driven separately; the fourth gear is divided into a fourth left gear and a fourth right gear, so that the fourth left gear can mesh with the third left gear and the fourth right gear can mesh with the third right gear, thereby transmitting power to the fourth left shaft through the fourth left gear and to the fourth right shaft through the fourth right gear, realizing the separate transmission of the two shafts, thereby controlling the separate operation of the fourth left shaft and the fourth right shaft through the first steering fork and the second steering fork, so as to realize the steering function of the travel steering device.

[0019] A micro-tiller, including the walking and steering device as described in any of the above-mentioned further technical solutions.

[0020] Compared with existing technologies, the advantages of this invention are as follows: by incorporating a walking and steering device into the tiller, the tiller can achieve flexible steering. Furthermore, because the steering fork is positioned higher, it is less susceptible to corrosion from mud and water, thus reducing the damage rate and maintenance costs of tiller components. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Fig. 2This is a schematic diagram of the walking and steering device of this utility model;

[0023] 1. First shaft; 2. First gear; 3. First bushing; 4. Return mechanism; 5. Second gear; 6. Steering fork; 7. Bearing; 8. Shim; 9. Second shaft; 10. Third shaft; 11. Third gear; 12. Fourth shaft; 13. Fourth gear; 41. First return mechanism; 42. Second return mechanism; 401. Second bushing; 402. Elastic element; 501. Second left gear; 502. Second right gear; 601. First steering fork; 602. Second steering fork; 1101. Third left gear; 1102. Third right gear; 1201. Fourth left shaft; 1202. Fourth right shaft; 1301. Fourth left gear; 1302. Fourth right gear. Detailed Implementation

[0024] To better understand the purpose, structure, and function of this invention, a mini-tiller of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figs. 1-2 As shown, the walking and steering device of this utility model includes a first shaft 1, a second shaft 9, a third shaft 10, and a bearing 7. The first shaft 1 receives power from the engine and transmits it to the second shaft 9, which then transmits it to the third shaft 10. All three shafts need to cooperate with the bearing 7. The first shaft 1 is equipped with a first gear 2 and a first bushing 3. The first gear 2 on the first shaft 1 allows the engine's power to be transmitted to the first shaft 1 through the meshing of other gears with the first gear 2. The first bushing 3 on the first shaft 1 allows the first... Other components can be installed on the bushing 3; the first bushing 3 is provided with a return mechanism 4. By installing the return mechanism 4 on the first bushing 3, the return mechanism 4 can automatically return to its original position through the internal elastic element 402; the return mechanism 4 is provided with a second gear 5. By installing the second gear 5 on the return mechanism 4, the return mechanism 4 can control the transmission and stop of the second gear 5; the return mechanism 4 is fixedly connected to the steering fork 6. By fixing the return mechanism 4 to the steering fork 6, the steering fork 6 can control the position of the return mechanism 4, thereby realizing the control of the transmission of the second gear 5.

[0027] In this embodiment, the return mechanism 4 is provided with a second bushing 401. By providing the second bushing 401 in the return mechanism 4, the second bushing 401 can move on the first bushing 3. An elastic element 402 is provided inside the second bushing 401. By providing the elastic element 402 inside the second bushing 401, the second bushing 401 can perform the return function through the elastic element 402. A gasket 8 is provided between the first bushing 3 and the bearing 7. The elastic element 402 is in contact with the gasket 8. By placing the elastic element 402 inside the second bushing 401, with one end facing the second bushing 401 and the other end in contact with the gasket 8, the return mechanism 4 can achieve axial movement and automatic return through the cooperation of the elastic element 402 with the second bushing 401 and the gasket 8.

[0028] In this embodiment, the second shaft 9 is provided with a third gear 11. By providing the third gear 11 on the second shaft 9, the third gear 11 can transmit power to the second shaft 9. The third gear 11 is connected to the second gear 5. Through the connection between the third gear 11 and the second gear 5, the power on the first shaft 1 is transmitted to the second shaft 9 through the meshing of the third gear 11 and the second gear 5.

[0029] In this embodiment, the third shaft 10 is provided with a fourth shaft 12. By providing the fourth shaft 12 on the third shaft 10, the fourth shaft 12 can be connected to the traveling wheel and the power on the fourth shaft 12 can be transmitted to the traveling wheel. The fourth shaft 12 is provided with a fourth gear 13, which is connected to the third gear 11. By installing the fourth gear 13 on the fourth shaft 12 and connecting the fourth gear 13 to the third gear 11, the power on the second shaft 9 is transmitted to the fourth shaft 12 through the meshing of the fourth gear 13 and the third gear 11, thereby transmitting the power to the traveling wheel through the fourth shaft 12.

[0030] In this embodiment, the steering fork 6 includes a first steering fork 601 and a second steering fork 602. By dividing the steering fork 6 into the first steering fork 601 and the second steering fork 602, the first steering fork 601 and the second steering fork 602 can control the return mechanism 4 respectively, thereby controlling the second gear 5 set on the return mechanism 4. The second gear 5 is divided into a second left gear 501 and a second right gear 502, so that it can transmit power to the third gear 11 respectively. The return mechanism 4 includes a first return mechanism 41 and a second return mechanism 42. By returning... Mechanism 4 is divided into a first return mechanism 41 and a second return mechanism 42, which enable the first return mechanism 41 and the second return mechanism 42 to drive the second gear 5 to perform axial movement and return functions respectively; the second gear 5 includes a second left gear 501 and a second right gear 502. By dividing the second gear 5 into a second left gear 501 and a second right gear 502, the second left gear 501 and the second right gear 502 can respectively transmit or stop with the third left gear 1101 and the third right gear 1102 under the drive of the first return mechanism 41 and the second return mechanism 42.

[0031] In this embodiment, the third gear 11 includes a third left gear 1101 and a third right gear 1102. By dividing the third gear 11 into a third left gear 1101 and a third right gear 1102, the third left gear 1101 and the third right gear 1102 can mesh and transmit power with the second left gear 501 and the second right gear 502 respectively, and can also mesh and transmit power with the fourth left gear 1301 and the fourth right gear 1302 respectively, thereby realizing the transmission or cessation of the third left gear 1101 and the third right gear 1102 respectively.

[0032] In this embodiment, the fourth shaft 12 includes a fourth left shaft 1201 and a fourth right shaft 1202. By dividing the fourth shaft 12 into the fourth left shaft 1201 and the fourth right shaft 1202, the fourth left shaft 1201 and the fourth right shaft 1202 can rotate separately after receiving power, thereby driving their respective traveling wheels to rotate or stop. The fourth gear 13 includes a fourth left gear 1301 and a fourth right gear 1302. By dividing the fourth gear 13 into the fourth left gear 1301 and the fourth right gear 1302, the fourth left gear 1301 and the fourth right gear 1302 can transmit power to the fourth left shaft 1201 and the fourth right shaft 1202 respectively through meshing with the third left gear 1101 and the third right gear 1102, thereby transmitting power to the traveling wheels respectively.

[0033] The micro-tiller in this embodiment includes a walking and steering device, which is powered by an engine. Upon receiving power from the engine, the first gear 2 transmits power to the first shaft 1. Then, the second gear 5 on the first shaft 1 transmits power to the second shaft 9 via meshing with the third gear 11. The third gear 11 then transmits power to the fourth shaft 12 via meshing with the fourth gear 13. Finally, the fourth shaft 12 transmits power to the walking wheels. When the operator controls the first steering fork 601 via the steering handle, the first steering fork 601 drives the first return mechanism 41 and the second left gear 501 to one side of the shaft. The movement causes the second left gear 501 to disengage from the third left gear 1101, thereby interrupting the power supply to the fourth left shaft 1201 and providing power to the fourth right shaft 1202, thus enabling rotation in the direction of the fourth left shaft 1201. When the operator controls the second steering fork 602 through the steering handle, the second steering fork 602 drives the second return mechanism 42 and the second right gear 502 to move axially to one side, causing the second right gear 502 to disengage from the third right gear 1102, thereby interrupting the power supply to the fourth right shaft 1202 and providing power to the fourth left shaft 1201, thus enabling rotation in the direction of the fourth right shaft 1202.

[0034] This invention addresses the issue by positioning the return mechanism 4 and the steering fork 6 on the first shaft 1 (third-to-last shaft) of the travel path. This reduces the force exerted by the ground on the engagement of the jaws. The reduced force on the jaws makes them easier to disengage. Compared to other front-mounted tillers where the return mechanism 4 and steering fork 6 are on the third shaft 10 (last shaft) or second shaft 9 (last shaft), this design provides significantly more flexible and easier steering. In fields or paddy fields, if the return mechanism 4 and steering fork 6 are on the third shaft 10 (last shaft) or second shaft 9 (last shaft), they may not be able to disengage, resulting in steering difficulties. By positioning the return mechanism 4 and steering fork 6 on the first shaft 1 (third-to-last shaft), the tiller can be flexibly steered. Furthermore, the higher position of the steering fork 6 makes it less susceptible to corrosion from mud and water, reducing component damage and maintenance costs.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A walking and steering device, comprising a first shaft (1), a second shaft (9), a third shaft (10), and a bearing (7), wherein the first shaft (1) is provided with a first gear (2) and a first bushing (3), characterized in that: The first bushing (3) is provided with a return mechanism (4), which includes a first return mechanism and a second return mechanism. The return mechanism (4) is fixedly connected to the steering fork (6), which includes a first steering fork (601) and a second steering fork (602). The return mechanism (4) is provided with a second gear (5), which includes a second left gear (501) and a second right gear (502). The return mechanism (4) is provided with a second bushing (401), which has an elastic element (402) inside. A gasket (8) is provided between the first bushing (3) and the bearing (7), and the elastic element (402) is in contact with the gasket (8).

2. The walking and steering device according to claim 1, characterized in that: The second shaft (9) is provided with a third gear (11), which is connected to the second gear (5) in a transmission connection.

3. The walking and steering device according to claim 1, characterized in that: The third shaft (10) is provided with a fourth shaft (12), the fourth shaft (12) is provided with a fourth gear (13), and the fourth gear (13) is connected to the third gear (11) in a transmission connection.

4. The walking and steering device according to claim 2, characterized in that: The third gear (11) includes a third left gear (1101) and a third right gear (1102).

5. The walking and steering device according to claim 3, characterized in that: The fourth shaft (12) includes a fourth left shaft (1201) and a fourth right shaft (1202); the fourth gear (13) includes a fourth left gear (1301) and a fourth right gear (1302).

6. A micro-tiller, characterized in that, Includes the walking and steering device as described in any one of claims 1-5.

Images