Fixed-axis wheel type mechanical pivot steering device
By using a fixed-axis wheel-type mechanical in-situ steering device, which utilizes the meshing connection of the drive wheel, transmission gear, and direction adjustment gear, the wear problem of tracked harvesters when turning in place is solved, achieving efficient and low-wear steering operation.
Patent Information
- Application Number
- CN202423007189.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-06
AI Technical Summary
When existing tracked harvesters turn in place, the tracks suffer severe frictional wear, and the braking equipment experiences significant wear, affecting its service life.
The fixed-axis wheel type mechanical in-situ steering device is adopted. Through the meshing connection of drive wheel, transmission gear, control gear and direction adjustment gear, the tracked harvester can turn in place, reducing the wear of tracks and braking equipment.
It enables tracked harvesters to turn in place, reduces track wear, lowers brake wear, improves work efficiency, and facilitates maintenance.
Smart Images
Figure CN223472545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical technology, and more specifically, to a fixed-axis wheel type mechanical in-situ steering device. Background Technology
[0002] Agricultural machinery is used in agricultural production, such as tracked harvesters. Tracked harvesters can harvest wheat. When the harvester is harvesting from one end of the field to the other, it needs to change direction to continue harvesting. However, turning space is limited, so the harvester will choose to turn around on the spot to change direction and continue to use it. In this way, the entire wheat field can be harvested.
[0003] When a harvester performs a turn-around maneuver, it first brakes one side's track wheel and then controls the other side's track wheel to move, thus turning the machine around. Although this operation can achieve the turn-around, in actual operation, one side's track will rub against each other in place, causing some wear and tear on the track. Furthermore, the track wheel needs to be tightly braked by the braking device to achieve the turn-around, which increases the wear and tear on the braking device and causes excessive wear and tear on components, affecting its use. Therefore, a fixed-axis wheel type mechanical turn-around device is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a fixed-axis wheel type mechanical in-situ steering device that overcomes or at least partially solves the above technical problems.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a fixed-axis wheel type mechanical stationary steering device, including a first drive shaft and a second drive shaft, with a first gear disk stably mounted on the first drive shaft and a second gear disk rotated on the outside of the second drive shaft;
[0007] Steering mechanism, the steering mechanism comprising;
[0008] A drive wheel is positioned on one side of the first gear disc and meshes with a transmission gear.
[0009] A cylinder is installed inside the transmission gear, and a movable first gear is provided inside the cylinder, which meshes with a first gear disk;
[0010] A circular shaft is located on the other side of the first gear disk, and a control gear is installed on the outside of the circular shaft. The control gear meshes with a direction adjustment gear to change the rotation direction of the second gear disk.
[0011] In a preferred embodiment, a bevel tooth is mounted on one side of the control gear, and the two are integrated. The direction adjustment gear is also set in a bevel shape, and the bevel tooth meshes with the direction adjustment gear to change the rotation direction of the second gear disk. A linkage gear is provided at the relative position of the control gear, and the linkage gear meshes with the direction adjustment gear.
[0012] In a preferred embodiment, the outer surfaces of the first drive shaft and the second drive shaft are respectively provided with spline grooves for connecting to external rolling wheels, and the first drive shaft and the second drive shaft are symmetrically arranged.
[0013] In a preferred embodiment, a splined shaft is provided on the inner side of the drive wheel and is snapped together with the splined shaft. One end of the splined shaft is snapped together with a gear set for connecting to the drive device inside the mechanical equipment.
[0014] In a preferred embodiment, a connecting shaft is provided inside the first gear, the first gear corresponds to the positions of the first gear disk and the second gear disk, and is meshed with the first gear disk and the second gear disk.
[0015] In a preferred embodiment, a second gear is positioned between the control gear and the linkage gear. A through hole is provided on one side of the second gear, and a directional 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 embodiment, a braking mechanism is mounted externally to the second gear, the braking mechanism comprising a third gear, a connecting shaft, and a brake wheel.
[0017] In a preferred embodiment, the second gear meshes with the third gear, and the third gear is fixedly mounted on the outer surface of the connecting shaft. The connecting shaft is positioned above the control gear and the connecting gear, and a brake wheel is fixedly mounted at one end of the connecting shaft.
[0018] In a preferred embodiment, the inner wall of the cylinder is configured as a gear groove and is used in conjunction with a first gear. A sleeve is fixedly installed on the inner side of the first gear, and the sleeve is sleeved on the outside of the connecting shaft and slidably connected to the connecting shaft.
[0019] The present invention provides a fixed-axis wheel type mechanical in-situ steering device, the advantages of which include:
[0020] 1. This utility model drives a transmission gear via a drive wheel and controls the first gear to mesh with the first gear disc, thereby controlling the rotation of the first transmission shaft to drive the rotation of the external rolling wheel. The first gear disc meshes with a control gear, which in turn meshes with a direction adjustment gear. The direction adjustment gear meshes with a connecting gear, which in turn meshes with the second gear disc. The direction adjustment gear is machined into a conical shape, which changes the rotation direction of the second gear disc, thus causing the first and second gear discs to rotate in opposite directions. This allows the external rolling wheel to rotate in one direction forward and in the other in the opposite direction, enabling the machine to turn around in place, reducing wear on the tracks, and also reducing wear on the braking equipment, thus meeting the requirements of use.
[0021] 2. This utility model has a third gear outside the second gear. The second gear is connected to the brake wheel through a connecting shaft, and the brake wheel is set outside the machine body so that the staff can maintain the brake wheel without disassembling the outer shell parts, saving time and facilitating operation. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0024] Figure 2 This is a schematic diagram showing the position of the second drive shaft of this utility model;
[0025] Figure 3 This is a schematic diagram of the second gear structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the direction adjustment gear structure of this utility model;
[0027] Figure 5 This is a schematic diagram of the cylindrical structure of this utility model.
[0028] In the diagram: 1. First drive shaft; 2. Second drive shaft; 3. First gear disc; 4. Second gear disc; 5. Steering mechanism; 51. Drive wheel; 511. Transmission gear; 52. Cylinder; 521. First gear; 53. Round shaft; 531. Control gear; 532. Direction adjustment gear; 6. Bevel gear; 7. Linking gear; 8. Spline groove; 9. Spline shaft; 10. Gear assembly; 11. Connecting shaft; 12. Second gear; 13. Through hole; 14. Braking mechanism; 141. Third gear; 142. Linking shaft; 143. Brake wheel; 15. Gear groove; 16. Sleeve. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] Example
[0031] Reference Figure 1-Figure 5 This utility model provides a technical solution: a fixed-axis wheel type mechanical stationary steering device, including a first transmission shaft 1, a steering mechanism 5, and a second transmission shaft 2. A first gear disk 3 is stably installed on the first transmission shaft 1, and a second gear disk 4 is rotated on the outside of the second transmission shaft 2. The steering mechanism 5 includes a drive wheel 51, which is located on one side of the first gear disk 3 and meshes with a transmission gear 511. A cylinder 52 is installed inside the transmission gear 511, and a movable first gear 521 is arranged inside the cylinder 52. The first gear 521 meshes with the first gear disk 3. A circular shaft 53 is located on the other side of the first gear disk 3, and a control gear 531 is installed on the outside of the circular shaft 53. The control gear 531 meshes with a direction adjustment gear 532 to change the rotation direction of the second gear disk 4.
[0032] In a preferred embodiment, a conical tooth 6 is mounted on one side of the control gear 531, and the two are integrated. The direction adjustment gear 532 is also conical in shape, and the conical tooth 6 meshes with the direction adjustment gear 532 to change the rotation direction of the second gear disk 4. A connecting gear 7 is provided at the relative position of the control gear 531, and the connecting gear 7 meshes with the direction adjustment gear 532. In order to realize that the rotation direction of the second gear disk 4 is opposite to that of the first gear disk 3, the device provides a direction adjustment gear 532. The direction adjustment gear 532 is conical so that it can mesh with the conical tooth 6. At the same time, one end of the connecting gear 7 is also conical in shape. With this shape, the connecting gear 7 can mesh with the direction adjustment gear 532, so that the two gear disks can rotate in opposite directions. The gear meshing connection effectively replaces the belt drive, reduces wasted work, improves work efficiency, and is easy to use.
[0033] In a preferred embodiment, the outer surfaces of the first drive shaft 1 and the second drive shaft 2 are respectively provided with spline grooves 8 for connecting external rolling wheels. The first drive shaft 1 and the second drive shaft 2 are symmetrically arranged. The device is provided with spline grooves 8 on the first drive shaft 1 and the second drive shaft 2 respectively. The spline grooves 8 are used to engage splines so that when installing rolling wheels, the rolling wheels can be stably connected by the restriction of the splines.
[0034] In a preferred embodiment, a splined shaft 9 is provided on the inner side of the drive wheel 51 and is snapped together with the drive wheel 51. One end of the splined shaft 9 is snapped with a gear set 10 for connecting to the drive device inside the mechanical equipment. In order to ensure stable use of the drive wheel 51, the drive wheel 51 is mounted on the splined shaft 9. In actual use, the splined shaft 9 can be rotatably mounted inside a dedicated direction control housing. The drive wheel 51 can be driven to rotate by an external drive device, which in turn drives the splined shaft 9 to rotate, making it convenient to use.
[0035] A connecting shaft 11 is provided inside the first gear 521. The first gear 521 corresponds to the position of the first gear disk 3 and the second gear disk 4, and is meshed with the first gear disk 3 and the second gear disk 4. A second gear 12 is provided between the control gear 531 and the connecting gear 7. A through hole 13 is provided on one side of the second gear 12, and the direction adjustment gear 532 is rotatably installed inside the through hole 13 to stably drive the control gear 531 and the connecting gear 7 to rotate.
[0036] The device has a braking mechanism 14 installed outside the second gear 12. The braking mechanism 14 includes a third gear 141, a connecting shaft 142, and a brake wheel 143. The second gear 12 meshes with the third gear 141 and fixes the third gear 141 on the outer surface of the connecting shaft 142. The connecting shaft 142 is located above the control gear 531 and the connecting gear 7. The brake wheel 143 is fixedly installed at one end of the connecting shaft 142.
[0037] In actual use, the brake wheel 143 will experience wear and tear due to long-term use, which will reduce the effectiveness of the brake wheel 143. To facilitate maintenance of the brake wheel 143, the brake wheel 143 will be placed outside the steering control box. This will make maintenance of the brake wheel 143 easier, without the need for extensive disassembly of parts. It will save time and make operation more convenient.
[0038] When the machine is turned, this device controls the first gear 521 to move, changing the correspondence between the first gear 521 and the gear disk. For example, when the machine turns right, the first gear 521 will be aligned with the first gear disk 3, and vice versa, it will be aligned with the second gear disk 4 to drive the gear disk to rotate. To facilitate the control of the movement of the first gear 521, a gear groove 15 is provided on the inner wall of the cylinder 52 and works in conjunction with the first gear 521. A 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 principle of a fixed-axis wheel type mechanical in-situ turning device is as follows: When a harvester is turning around in place, it first brakes one side of the moving wheel, and then controls the moving wheel on the other side to move, thereby driving the machine to turn around. Although this operation can achieve mechanical turning, in actual operation, one side of the track will rub against each other in place, causing certain wear on the track. In addition, the moving wheel needs to be tightly braked by the braking device to achieve in-situ turning, which increases the wear of the braking device and causes excessive wear and consumption of components, affecting the use. Therefore, this utility model was designed to solve this problem.
[0040] This utility model allows a tracked harvester to turn while its front and rear wheels rotate together, with one side turning forward and the other side turning backward, thus enabling in-situ turning. This reduces wear on the track and ground, and eliminates the need for braking during turning, minimizing wear on braking equipment and simplifying operation. Specifically, this device is installed on a tracked harvester to control its direction of movement. Rolling wheels are mounted at the ends of the first drive shaft 1 and the second drive shaft 2. By driving the first drive shaft 1 and the second drive shaft 2 to rotate, the rotation of the rolling wheels on the first drive shaft 1 and the second drive shaft 2 can be controlled, thereby controlling the machine's movement.
[0041] When mechanical steering is required, a person can control the movement of the steering lever. The movement of the steering lever will drive the lever inside the machine to move. For example, when the machine turns to the right, the steering lever is controlled to move, and the drive wheel 51 meshes with the transmission gear 511, controlling the transmission gear 511 to rotate continuously. At the same time, the lever pushes the first gear 521 to move inside the cylinder 52, causing the first gear 521 to separate from the second gear disk 4. In this case, the first gear 521 can no longer drive the second gear disk 4 to rotate.
[0042] Although the first gear 521 cannot mesh with the second gear disk 4, it can mesh with the first gear disk 3. The first gear 521 drives the first gear disk 3 to rotate, which in turn drives the control gear 531 to rotate. The control gear 531 is located outside the first transmission shaft 1, and a bevel tooth 6 is installed on one side of the control gear 531. By meshing the bevel tooth 6 with the direction adjustment gear 532, the direction adjustment gear 532 changes the rotation direction of the second gear disk 4, making the rotation directions of the first gear disk 3 and the second gear disk 4 opposite. This allows the rolling wheels to rotate in opposite directions, enabling the machine to be turned around and facilitating its use.
[0043] This device is connected to the linkage gear 7 via a directional adjustment gear 532. When the linkage gear 7 rotates, it also drives the second gear disk 4 to rotate. Due to the setting of the directional adjustment gear 532, the rotation direction of the second gear disk 4 is changed, effectively replacing the existing belt drive method and improving work efficiency. This device sets two directional adjustment gears 532, which mesh with a control gear 531 and a linkage gear 7 to drive the second gear disk 4 stably.
[0044] This device can turn the harvester around on the spot using the above methods and control the rotation direction of the rolling wheels, which can reduce wear on the tracks. At the same time, there is no need to control the brakes when turning the harvester, which reduces wear on the braking equipment, extends the service life of the braking equipment, and makes it easy to use.
[0045] During installation, the brake wheel 143 is positioned outside the steering control box to facilitate maintenance and operation without requiring extensive disassembly of parts. This saves time and makes operation easier.
Claims
1. A fixed-axis wheel type mechanical in-situ steering device, characterized in that, It includes a first drive shaft (1) and a second drive shaft (2), and a first gear disk (3) is stably mounted on the first drive shaft (1), and a second gear disk (4) is mounted on the outside of the second drive shaft (2); Steering mechanism (5), said steering mechanism (5) includes; The drive wheel (51) is located on one side of the first gear disk (3) and meshes with the transmission gear (511). A cylinder (52) is installed inside the transmission gear (511), and a movable first gear (521) is provided inside the cylinder (52), which meshes with the first gear disk (3). A circular shaft (53) is located on the other side of the first gear disk (3), and a control gear (531) is installed on the outside of the circular shaft (53). The control gear (531) meshes with a direction adjustment gear (532) to change the rotation direction of the second gear disk (4).
2. The fixed-axis wheel type mechanical in-situ steering device according to claim 1, characterized in that, A bevel tooth (6) is mounted on one side of the control gear (531), and the two are integrated. The direction adjustment gear (532) is also set in a bevel shape. The bevel tooth (6) meshes with the direction adjustment gear (532) to change the rotation direction of the second gear disk (4). A connecting gear (7) is set at the relative position of the control gear (531), and the connecting gear (7) meshes with the direction adjustment gear (532).
3. A fixed-axis wheel type mechanical in-situ steering device according to claim 2, characterized in that, The outer surfaces of the first drive shaft (1) and the second drive shaft (2) are respectively provided with spline grooves (8) for connecting external rolling wheels. The first drive shaft (1) and the second drive shaft (2) are symmetrically arranged.
4. A fixed-axis wheel type mechanical in-situ steering device according to claim 3, characterized in that, A spline shaft (9) is provided on the inner side of the drive wheel (51) and is snapped together with the spline shaft (9). One end of the spline shaft (9) is snapped with a gear set (10) for connecting the drive device inside the mechanical equipment.
5. A fixed-axis wheel type mechanical in-situ steering device according to claim 4, characterized in that, A connecting shaft (11) is provided inside the first gear (521). The first gear (521) corresponds to the positions of the first gear disk (3) and the second gear disk (4) and meshes with the first gear disk (3) and the second gear disk (4).
6. A fixed-axis wheel type mechanical in-situ steering device according to claim 5, characterized in that, A second gear (12) is provided between the control gear (531) and the connecting gear (7). A through hole (13) is provided on one side of the second gear (12), and a direction adjustment gear (532) is rotatably installed inside the through hole (13) to stably drive the control gear (531) and the connecting gear (7) to rotate.
7. A fixed-axis wheel type mechanical in-situ steering device according to claim 6, characterized in that, A braking mechanism (14) is mounted on the outside of the second gear (12). The braking mechanism (14) includes a third gear (141), a connecting shaft (142), and a brake wheel (143).
8. A fixed-axis wheel type mechanical in-situ steering device according to claim 7, characterized in that, The second gear (12) meshes with the third gear (141) and the third gear (141) is fixedly installed on the outer surface of the connecting shaft (142). The connecting shaft (142) is located above the control gear (531) and the connecting gear (7). A brake wheel (143) is fixedly installed at one end of the connecting shaft (142).
9. A fixed-axis wheel type mechanical in-situ steering device according to claim 8, characterized in that, The inner wall of the cylinder (52) is configured as a gear groove (15) and is used in conjunction with the first gear (521). A 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).