Fixed-axis wheel type mechanical pivot steering device

Abstract

The invention provides a fixed-axis wheel type mechanical pivot steering device, and belongs to the technical field of machinery. Comprising a first transmission shaft, a steering mechanism and a second transmission shaft, a first gear disc is stably installed on the first transmission shaft, a second gear disc is installed outside the second transmission shaft, the steering mechanism comprises a driving wheel, the driving wheel is arranged on one side of the first gear disc, and the driving wheel is connected with a transmission gear in an engaged mode. The cylinder is installed on the inner side of the transmission gear, a movable first gear is arranged in the cylinder, the first gear is connected with a first gear disc in a meshed mode, and the circular shaft is arranged on the other side of the first gear disc. By controlling the rotation directions of the first gear disc and the second gear disc to be opposite, one external rolling wheel rotates forwards, and the other external rolling wheel rotates backwards, so that mechanical in-situ rotation and turning-around can be achieved, abrasion to a crawler belt is reduced, meanwhile, abrasion to brake equipment can be reduced, and use requirements are met.

Description

Technical Field

[0001] The present invention relates to the field of mechanical technology, and in particular to a fixed-axle wheel type mechanical in-situ steering device. Background Art

[0002] In the invention of agricultural production, agricultural machinery will be used for operation, such as crawler harvesters. Crawler harvesters can harvest wheat. When the harvester harvests from one end of the field to the other, it needs to change direction to continue harvesting. However, the turning space is limited, so the harvester will choose to turn around and change direction on the spot to continue using it. In this way, a whole field of wheat can be harvested.

[0003] When the harvester makes a U-turn on the spot, it will first brake the moving wheel on one side, and then control the moving wheel on the other side to move, so as to drive the mechanical U-turn. Although this operation can achieve mechanical U-turn, in actual operation, the track on one side will rub on the spot, causing certain wear and tear on the track, and the moving wheel needs to be tightly braked by the braking device to achieve the U-turn on the spot, which increases the wear and tear of the braking device and causes excessive wear and consumption of components, affecting the use. Therefore, a fixed-axis wheel mechanical in-situ steering device is proposed to solve the above problems. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a fixed-axle wheel type mechanical on-site steering device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a fixed-axis wheel type mechanical in-situ steering device, comprising a first transmission shaft and a second transmission shaft, wherein a first gear plate is stably mounted on the first transmission shaft, and a second gear plate is rotatably mounted on the outside of the second transmission shaft;

[0007] A steering mechanism, the steering mechanism comprising:

[0008] A driving wheel, which is arranged at one side of the first gear plate and is meshed with the transmission gear;

[0009] A cylinder, the cylinder is installed at the inner side of the transmission gear, and a movable first gear is arranged inside the cylinder, the first gear is meshed and connected with the first gear plate;

[0010] A circular shaft is arranged at the other side of the first gear plate, and a control gear is installed on the outside of the circular shaft. The control gear is meshed with the direction adjustment gear to change the rotation direction of the second gear plate.

[0011] In a preferred solution, a conical tooth is installed on one side of the control gear, and the two are arranged as an integral whole, and the direction adjustment gear is arranged in a conical shape, and the conical tooth is meshed and connected with the direction adjustment gear, so as to change the rotation direction of the second gear plate, and a linkage gear is arranged at a relative position of the control gear, and the linkage gear is meshed and connected with the direction adjustment gear.

[0012] In a preferred solution, the outer surfaces of the first transmission shaft and the second transmission shaft are respectively provided with spline grooves for connecting to external rolling wheels, and the first transmission shaft and the second transmission shaft are symmetrically arranged with each other.

[0013] In a preferred solution, a spline shaft is provided inside the driving wheel and is clamped with the spline shaft, and a toothed disc set is clamped at one end of the spline shaft for connecting to a driving device in the mechanical device.

[0014] In a preferred solution, a connecting shaft is provided inside the first gear, and the first gear corresponds to the positions of the first gear plate and the second gear plate, and is meshedly connected with the first gear plate and the second gear plate.

[0015] In a preferred embodiment, a second gear is arranged between the control gear and the linkage gear, a through hole is opened on one side of the second gear, and a direction adjustment gear is rotatably installed inside the through hole to stably drive the control gear and the linkage gear to rotate.

[0016] In a preferred solution, a braking mechanism is installed outside the second gear, and the braking mechanism includes a third gear, a linkage shaft and a braking wheel.

[0017] In a preferred solution, the second gear is meshedly connected to the third gear, and the third gear is fixedly mounted on the outer surface of the linkage shaft, the linkage shaft is arranged above the control gear and the linkage gear, and a brake wheel is fixedly mounted on one end of the linkage shaft.

[0018] In a preferred solution, the inner wall of the cylinder is provided with a gear groove and is used in conjunction with the first gear. A sleeve is fixedly installed on the inner side of the first gear. The sleeve is sleeved on the outside of the connecting shaft and is slidably connected to the connecting shaft.

[0019] The invention provides a fixed-axle wheel type mechanical in-situ steering device, which has the following beneficial effects:

[0020] 1. The present invention drives the transmission gear through the driving wheel, and controls the first gear to be meshed and connected with the first gear plate, so as to control the first transmission shaft to rotate, so as to drive the external rolling wheel to rotate. The first gear plate is meshed and connected with the control gear, and the control gear is meshed with the direction adjustment gear. The direction adjustment gear will be meshed with the linkage gear, and the linkage gear will be meshed and connected with the second gear plate. The processing direction adjustment gear is set to be conical, which will change the rotation direction of the second gear plate, so that the rotation directions of the first gear plate and the second gear plate are opposite, so that one of the external rolling wheels rotates forward and the other rotates reversely, which can realize the mechanical rotation and U-turn on the spot, reduce the wear on the crawler track, and also reduce the wear on the brake equipment, so as to meet the use requirements.

[0021] 2. The present invention has a third gear outside the second gear, the second gear is connected to the brake wheel through a linkage shaft, and the brake wheel is arranged outside the machine body, so that the staff can repair the brake wheel without removing the shell parts, saving time and facilitating operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the position of the second transmission shaft of the present invention;

[0025] Figure 3 This is a schematic diagram of the second gear structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the direction adjustment gear structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the cylinder structure of the present invention.

[0028] In the figure: 1. first transmission shaft; 2. second transmission shaft; 3. first gear plate; 4. second gear plate; 5. steering mechanism; 51. driving wheel; 511. transmission gear; 52. cylinder; 521. first gear; 53. round shaft; 531. control gear; 532. direction adjustment gear; 6. conical teeth; 7. linkage gear; 8. spline groove; 9. spline shaft; 10. gear plate group; 11. connecting shaft; 12. second gear; 13. through hole; 14. braking mechanism; 141. third gear; 142. linkage shaft; 143. brake wheel; 15. gear groove; 16. sleeve. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] Reference Figure 1-Figure 5 The present invention provides a technical solution: a fixed-axis wheel type mechanical in-situ steering device, comprising a first transmission shaft 1, a steering mechanism 5 and a second transmission shaft 2, wherein a first gear plate 3 is stably mounted on the first transmission shaft 1, a second gear plate 4 is rotatably mounted on the outside of the second transmission shaft 2, the steering mechanism 5 comprises a driving wheel 51, the driving wheel 51 is arranged at a position on one side of the first gear plate 3, and the driving wheel 51 is meshed and connected to a transmission gear 511, a cylinder 52 is arranged at a position on the inner side of the transmission gear 511, and a movable first gear 521 is arranged inside the cylinder 52, the first gear 521 is meshed and connected to the first gear plate 3, a circular shaft 53 is arranged at a position on the other side of the first gear plate 3, and a control gear 531 is mounted on the outside of the circular shaft 53, the control gear 531 is meshed and connected to a direction adjusting gear 532, and is used to change the rotation direction of the second gear plate 4.

[0032] In a preferred embodiment, a bevel tooth 6 is installed on one side of the control gear 531, and the two are arranged as an integral whole, and the direction adjustment gear 532 is arranged in a conical shape. The bevel tooth 6 is meshed and connected with the direction adjustment gear 532, which is used to change the rotation direction of the second gear plate 4, and a linkage gear 7 is arranged at a relative position of the control gear 531, and the linkage gear 7 is meshed and connected with the direction adjustment gear 532. In order to achieve the opposite rotation direction of the second gear plate 4 and the first gear plate 3, the device will be provided with a direction adjustment gear 532, and the direction adjustment gear 532 is arranged in a conical shape so as to mesh with the bevel tooth 6. At the same time, one end of the linkage gear 7 is also arranged in a conical shape. In this shape, the linkage gear 7 can be meshed and connected with the direction adjustment gear 532, so that the two gear plates can rotate in opposite directions. In addition, the gear meshing connection is adopted, which effectively replaces the belt drive method, reduces useless work, improves work efficiency, and is easy to use.

[0033] In a preferred embodiment, the outer surfaces of the first transmission shaft 1 and the second transmission shaft 2 are respectively provided with spline grooves 8 for connecting to external rolling wheels. The first transmission shaft 1 and the second transmission shaft 2 are symmetrically arranged. The device is respectively provided with spline grooves 8 on the first transmission shaft 1 and the second transmission shaft 2. The spline grooves 8 are used to clamp the splines, so that when the rolling wheels are installed, the rolling wheels can be controlled to be stably connected through the restriction of the splines.

[0034] In a preferred embodiment, a spline shaft 9 is provided at the inner side of the driving wheel 51 and is clamped together with the spline shaft 9. A toothed disc group 10 is clamped at one end of the spline shaft 9 for connecting to a driving device in the mechanical device. In order to ensure the stable use of the driving wheel 51, the driving wheel 51 will be installed on the spline shaft 9. In actual use, the spline shaft 9 can be rotatably installed inside a box with a special direction control. The driving wheel 51 can be driven to rotate by an external driving device, and the spline shaft 9 can also be driven to rotate, which is convenient for use.

[0035] A connecting shaft 11 is provided inside the first gear 521. The first gear 521 corresponds to the positions of the first gear plate 3 and the second gear plate 4, and is meshed and connected with the first gear plate 3 and the second gear plate 4. A second gear 12 is provided between the control gear 531 and the interlocking gear 7. A through hole 13 is provided on one side of the second gear 12, and the direction adjusting gear 532 is rotatably installed inside the through hole 13, so as to stably drive the control gear 531 and the interlocking gear 7 to rotate.

[0036] The device is provided with a brake mechanism 14 on the outside of the second gear 12, and the brake mechanism 14 includes a third gear 141, a linkage shaft 142 and a brake wheel 143. The second gear 12 is meshedly connected to the third gear 141, and the third gear 141 is fixedly mounted on the outer surface of the linkage shaft 142. The linkage shaft 142 is arranged above the control gear 531 and the linkage gear 7, and the brake wheel 143 is fixedly mounted on one end of the linkage shaft 142.

[0037] In actual use, the brake wheel 143 will cause movement wear after long-term use, which will reduce the position use effect of the brake wheel 143. In order to facilitate the maintenance of the brake wheel 143, the brake wheel 143 will be set outside the direction control box to facilitate the maintenance of the brake wheel 143, which is easy to operate. There is no need to disassemble a large number of parts to find the brake wheel 143 for maintenance, which saves time and is easy to operate.

[0038] When the machine is turned, the device will control the first gear 521 to move and change the correspondence between the first gear 521 and the gear plate. For example, when the machine turns right, the first gear 521 will be controlled to correspond to the position of the first gear plate 3, and vice versa, it will correspond to the position of the second gear plate 4, so as to drive the gear plate to rotate. In order to facilitate the control of the movement of the first gear 521, a gear groove 15 is set on the inner wall of the cylinder 52 and used in conjunction with the first gear 521. The sleeve 16 is fixedly installed on the inner side of the first gear 521. The sleeve 16 is sleeved on the outside of the connecting shaft 11 and is slidably connected to the connecting shaft 11 for easy use.

[0039] Specifically, the working process or working principle of a fixed-axis wheel mechanical on-the-spot steering device is as follows: when the harvester makes a U-turn on the spot, the moving wheel on one side will be braked first, and then the moving wheel on the other side will be controlled to move, thereby driving the mechanical U-turn. Although this operation can achieve a mechanical U-turn, in actual operation, the track on one side will rub on the spot, causing certain wear and tear on the track, and the moving wheel needs to be tightly braked by the braking device to achieve the on-the-spot U-turn, which increases the wear and tear of the braking device and causes excessive wear and consumption of the components, affecting the use. Therefore, the present invention is designed to solve this problem.

[0040] The present invention can control the crawler harvester to turn, and the front and rear wheels can rotate together, one side rotates forward and the other side rotates backward, so that turning on the spot can be achieved, the wear of the crawler track on the ground is reduced, and when turning, there is no need to brake, which reduces the wear on the braking equipment and is easy to use. In specific operation, the device is installed on the crawler harvester and is used to control the moving direction of the harvester. The ends of the first transmission shaft 1 and the second transmission shaft 2 on the device are respectively equipped with rolling wheels. By driving the first transmission shaft 1 and the second transmission shaft 2 to rotate, the rolling wheels on the first transmission shaft 1 and the second transmission shaft 2 can be controlled to rotate, so as to control the movement of the machine.

[0041] When the machine needs to be turned, the personnel can control the movement of the direction rod, and the movement of the direction rod will drive the lever inside the machine to move. For example, when the machine turns to the right, the direction rod is controlled to move, and the driving wheel 51 is meshed and connected with the transmission gear 511, and the transmission gear 511 is controlled to rotate continuously. At the same time, the first gear 521 is pushed to move inside the cylinder 52 under the push of the lever, so that the first gear 521 is separated from the second gear plate 4. In this case, the first gear 521 cannot drive the second gear plate 4 to rotate.

[0042] Although the first gear 521 cannot mesh with the second gear plate 4 for transmission, the first gear 521 will mesh with the first gear plate 3, and the first gear plate 3 will be driven to rotate through the first gear 521. The rotation of the first gear plate 3 will also drive the control gear 531 to rotate. The control gear 531 is arranged at a position outside the first transmission shaft 1, and a conical tooth 6 is installed on one side surface of the control gear 531. By meshing and rotating the conical tooth 6 with the direction adjusting gear 532, the rotation direction of the second gear plate 4 will be changed through the direction adjusting gear 532, so that the rotation directions of the first gear plate 3 and the second gear plate 4 are opposite, thereby controlling one scroll wheel to rotate forward and the other to rotate reversely, so as to realize the U-turn of the machine, which is convenient for use.

[0043] The device is connected to the linkage gear 7 through the meshing connection of the direction adjusting gear 532. When the linkage gear 7 rotates, the second gear plate 4 is also driven to rotate. Due to the setting of the direction adjusting gear 532, the rotation direction of the second gear plate 4 will be changed, effectively replacing the existing belt transmission method and improving work efficiency. The device sets two direction adjusting gears 532. The two direction adjusting gears 532 are meshed and transmitted with a control gear 531 and a linkage gear 7, which can share the driving force of the direction adjusting gear 532, thereby stably driving the second gear plate 4.

[0044] The device can turn the harvester on the spot and control the rotation direction of the rolling wheel through the above method, which can reduce the wear on the crawler track. At the same time, there is no need to control the brake when turning the harvester, which reduces the wear on the brake equipment, extends the service life of the brake equipment, and is easy to use.

[0045] When the device is installed, the brake wheel 143 is arranged outside the direction control box, so that the brake wheel 143 can be repaired and operated easily. There is no need to disassemble a large number of parts to find the brake wheel 143 for repair, which saves time and is easy to operate.

Claims

1. A fixed-axle wheel type mechanical in-situ steering device, characterized in that: It comprises a first transmission shaft (1) and a second transmission shaft (2), wherein a first gear plate (3) is stably mounted on the first transmission shaft (1), and a second gear plate (4) is rotatably mounted on the outside of the second transmission shaft (2); A steering mechanism (5), the steering mechanism (5) comprising: A driving wheel (51), wherein the driving wheel (51) is arranged at a position on one side of the first gear plate (3), and the driving wheel (51) is meshedly connected to the transmission gear (511); A cylinder (52), the cylinder (52) being mounted on the inner side of the transmission gear (511), and a movable first gear (521) being arranged inside the cylinder (52), the first gear (521) being meshedly connected to the first gear plate (3); A circular shaft (53) is arranged at the other side of the first gear plate (3), and a control gear (531) is installed outside the circular shaft (53). The control gear (531) is meshed with a direction adjustment gear (532) to change the rotation direction of the second gear plate (4).

2. The fixed-axle wheel type mechanical in-situ steering device according to claim 1, characterized in that: A conical tooth (6) is installed on one side of the control gear (531), and the two are arranged as an integral whole. The direction adjustment gear (532) is arranged in a conical shape. The conical tooth (6) is meshedly connected with the direction adjustment gear (532) and is used to change the rotation direction of the second gear plate (4). A linkage gear (7) is arranged at a relative position to the control gear (531), and the linkage gear (7) is meshedly connected with the direction adjustment gear (532).

3. The fixed-axle wheel type mechanical in-situ steering device according to claim 2, characterized in that: The outer surfaces of the first transmission shaft (1) and the second transmission shaft (2) are respectively provided with spline grooves (8) for connecting to external rolling wheels; the first transmission shaft (1) and the second transmission shaft (2) are symmetrically arranged with each other.

4. The fixed-axle wheel type mechanical in-situ steering device according to claim 3, characterized in that: A spline shaft (9) is arranged inside the driving wheel (51) and is clamped with the spline shaft (9); a toothed disc assembly (10) is clamped at one end of the spline shaft (9) for connecting to a driving device in the mechanical device.

5. The fixed-axle wheel type mechanical in-situ steering device according to claim 4, characterized in that: A connecting shaft (11) is arranged inside the first gear (521); the first gear (521) corresponds to the positions of the first gear plate (3) and the second gear plate (4), and is meshedly connected with the first gear plate (3) and the second gear plate (4).

6. The fixed-axle wheel type mechanical in-situ steering device according to claim 5, characterized in that: A second gear (12) is arranged between the control gear (531) and the linkage gear (7), a through hole (13) is provided on a side surface of the second gear (12), and a direction adjustment gear (532) is rotatably mounted inside the through hole (13) to stably drive the control gear (531) and the linkage gear (7) to rotate.

7. The fixed-axle wheel type mechanical in-situ steering device according to claim 6, characterized in that: A braking mechanism (14) is installed outside the second gear (12), and the braking mechanism (14) comprises a third gear (141), a linkage shaft (142) and a braking wheel (143).

8. The fixed-axle wheel type mechanical in-situ steering device according to claim 7, characterized in that: The second gear (12) is meshedly connected to the third gear (141), and the third gear (141) is fixedly mounted on the outer surface of a linkage shaft (142). The linkage shaft (142) is arranged above the control gear (531) and the linkage gear (7), and a brake wheel (143) is fixedly mounted on one end of the linkage shaft (142).

9. The fixed-axle wheel type mechanical in-situ steering device according to claim 8, characterized in that: The inner wall of the cylinder (52) is provided with a gear groove (15) and is used in conjunction with the first gear (521). A sleeve (16) is fixedly installed at the inner side of the first gear (521). The sleeve (16) is sleeved on the outside of the connecting shaft (11) and is slidably connected to the connecting shaft (11).

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