Maintenance-free compact steering wheel

Abstract

The utility model relates to a steering wheel, in particular to a maintenance-free compact steering wheel which comprises a supporting mechanism, a transmission system and a steering system, the transmission system and the steering system are arranged on the supporting mechanism, the transmission system is located on one side of the steering system, the supporting mechanism comprises a lower shell, an upper shell and a slewing bearing, and the upper shell and the slewing bearing are arranged on the lower shell. A transmission box is arranged at the end, away from the lower shell, of the slewing bearing, the transmission system comprises a walking driving motor, a first transmission gear, a second transmission gear and a transmission gear disc, the first transmission gear, the second transmission gear and the transmission gear disc are arranged above the walking driving motor, and the output end of the walking driving motor is connected with the first transmission gear. According to the maintenance-free compact steering wheel, 360-degree rotation of the power wheel can be achieved, the risk of wire harness winding and abrasion is avoided, after-sales maintenance of a motor, wire harnesses of the motor and other electrical components is avoided, the space size is extremely compact, the occupied space is small when client application is installed, and application models and application scenes are more diversified.

Description

Technical Field

[0001] This utility model relates to a steering wheel, specifically a maintenance-free compact steering wheel. Background Technology

[0002] A steering wheel is a mechanical device that integrates transmission, steering, and load-bearing functions. It can be used to load and haul heavy goods and control their direction.

[0003] The existing steering wheel structure design is unreasonable. The drive motor and its wiring harness on the steering wheel rotate with the wheel end at a certain angle during steering. After a period of use, the wiring harness often becomes tangled and wears out, leading to after-sales maintenance problems. Furthermore, the rotating parts have a large rotation diameter, requiring significant space during installation at the customer's location, limiting its application in some smaller models. Therefore, the inventor has improved the steering wheel structure. Utility Model Content

[0004] The purpose of this utility model is to provide a maintenance-free, compact steering wheel. This steering wheel has a simple structure, reasonable design, full functionality, no risk of wire harness entanglement and wear, avoids after-sales maintenance of electrical components such as motors and their wiring harnesses, has an extremely compact size, improves space utilization, the two motors do not rotate with the wheel end, the rotation diameter of the related transmission structure is significantly reduced, the space occupied during client application installation is small, making the application models and application scenarios more diversified, expanding the application range of steering wheels, and solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a maintenance-free compact steering wheel, comprising a support mechanism and a transmission system and a steering system mounted on the support mechanism, wherein the transmission system is located on one side of the steering system. The support mechanism includes a lower housing, an upper housing mounted on the lower housing, and a slewing bearing. A transmission box is provided at the end of the slewing bearing away from the lower housing. The transmission system includes a travel drive motor and a first transmission gear, a second transmission gear, and a transmission gear disk mounted above the travel drive motor. The output end of the travel drive motor is connected to the first transmission gear. The second transmission gear is located between the first transmission gear and the transmission gear disk, and meshes with both the first transmission gear and the transmission gear disk. The transmission gear disk is fixed on a rotating shaft. The bottom of the rotating shaft is provided with a gear transmission mechanism and an input bevel gear in sequence. The rotating shaft is connected to the input bevel gear through the gear transmission mechanism. The end of the input bevel gear away from the gear transmission mechanism meshes with an output bevel gear. The end of the output bevel gear away from the input bevel gear is fixed with a wheel. Both the output bevel gear and the wheel are mounted on the transmission box, so that the output bevel gear and the wheel can operate stably. The steering system includes a steering drive motor and a first steering gear, a second steering gear and a steering gear disk disposed above the steering drive motor. The output end of the steering drive motor is connected to the first steering gear. The second steering gear is disposed between the first steering gear and the steering gear disk, and the second steering gear meshes with the first steering gear and the steering gear disk respectively. The steering gear disk is fixed to the inner ring of the slewing bearing.

[0006] Preferably, both the lower and upper housings are hollow cavity structures with an opening at one end, and the cavities of the lower and upper housings are arranged facing each other. The first transmission gear, the second transmission gear, the transmission gear disk, the rotating shaft, the gear transmission mechanism, the first steering gear, the second steering gear, and the steering gear disk are all housed inside the cavity formed by the lower and upper housings. The support shafts of the second transmission gear and the second steering gear are both fixed in the cavity of the upper housing, so that the second transmission gear and the second steering gear can operate stably and maintain the stability of the structure.

[0007] Preferably, the slewing bearing is disposed between the lower housing and the transmission box, and the slewing bearing is mounted on the lower housing.

[0008] Preferably, the transmission box is a hollow cavity structure with an opening at one end, and a cover plate is fixed at the cavity opening of the transmission box. The output bevel gear and the wheel are both accommodated in the cavity of the transmission box. Therefore, the cover plate is used to seal, lubricate and protect the input bevel gear and the output bevel gear.

[0009] Preferably, both the walking drive motor and the steering drive motor are vertically arranged, and both are fixed to the lower end face of the lower housing.

[0010] Preferably, the transmission gear disk, the rotating shaft, and the steering gear disk are all coaxially arranged, with the steering gear disk located below the transmission gear disk.

[0011] Preferably, the gear transmission mechanism includes a main drive gear and a driven gear meshing on the main drive gear. Both the main drive gear and the driven gear are rotatably connected to the transmission box, thus enabling both the main drive gear and the driven gear to operate stably.

[0012] Preferably, the driven gear is connected to the input bevel gear, and the driven gear is located on top of the input bevel gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a maintenance-free compact steering wheel, which includes a support mechanism and a transmission system and a steering system mounted on the support mechanism. The overall structure is simple and reasonably designed. The support mechanism includes a lower housing, an upper housing and a slewing bearing mounted on the lower housing. A transmission box is located at the end of the slewing bearing away from the lower housing. The transmission system includes a travel drive motor and a first transmission gear, a second transmission gear and a transmission gear disk mounted above the travel drive motor. The transmission gear disk is fixed on a rotating shaft, which is connected to an input bevel gear through a gear transmission mechanism. An output bevel gear meshes at the end of the input bevel gear away from the gear transmission mechanism, and a wheel is fixed at the end of the output bevel gear away from the input bevel gear. The steering system includes a steering drive motor and a first steering gear, a second steering gear and a steering gear disk mounted above the steering drive motor. The drive gear, second transmission gear, transmission gear disk, rotating shaft, gear transmission mechanism, first steering gear, second steering gear, and steering gear disk are all housed within the cavity formed by the lower and upper housings. The support shafts of the second transmission gear and the second steering gear are fixed within the cavity of the upper housing. The output bevel gear and the wheel are housed within the cavity of the transmission box. This steering wheel changes the existing layout of the travel drive motor directly connected to the wheel-end reducer. The travel drive motor is mounted on the lower end face of the lower housing, and the torque is transmitted to the wheel through the gear transmission mechanism. It ensures that the power transmission is continuous and uninterrupted when the wheel rotates, so that the wheel can rotate continuously 360° without angle limitation. During transmission and steering operations, neither the travel drive motor nor the steering drive motor rotates with the wheel, thus eliminating the risk of wire harness entanglement and wear, avoiding after-sales maintenance of the motor and its electrical components such as wire harness, and making it suitable for widespread use.

[0015] 2. The gear structure in this utility model is encapsulated inside the whole formed by the lower housing and the upper housing, realizing the maintenance-free function of the walking drive motor and the steering drive motor and their wiring harness and other electrical components. All the transmission components of the transmission system and the transmission components of the steering system are encapsulated inside the whole formed by the lower housing and the upper housing, and lubricated with grease. There is no risk of interference from foreign objects, and rust and wear can be avoided.

[0016] 3. The gear structures included in the transmission system and steering system of this utility model are all set inside the integral body formed by the lower shell and the upper shell. Therefore, the space size is extremely compact, improving the space utilization rate. Since the two motors do not rotate with the wheel end, the rotation diameter of the relevant transmission structure is significantly reduced. The space occupied during client application installation is small, making the application models and application scenarios more diversified, expanding the application range of steering wheels, and making it highly practical. Attached Figure Description

[0017] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the upper casing of this utility model after it has been opened;

[0019] Figure 3 This is a schematic diagram of the transmission system and steering system of this utility model;

[0020] Figure 4 This is a schematic diagram of the input bevel gear and the output bevel gear of this utility model;

[0021] Figure 5 This is the front view of the present invention;

[0022] Figure 6 This is a second schematic diagram of an embodiment of the present utility model.

[0023] The reference numerals and names in the figure are as follows: 1. Support mechanism; 11. Lower housing; 12. Upper housing; 13. Slewing bearing; 14. Transmission box; 15. Cover plate; 2. Transmission system; 21. Travel drive motor; 22. First transmission gear; 23. Second transmission gear; 24. Transmission gear disk; 25. Rotating shaft; 26. Gear transmission mechanism; 261. Main drive gear; 262. Driven gear; 27. Input bevel gear; 28. Output bevel gear; 29. ​​Wheel; 3. Steering system; 31. Steering drive motor; 32. First steering gear; 33. Second steering gear; 34. Steering gear disk. Detailed Implementation

[0024] 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.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] Please see Figure 1 One embodiment of this utility model is a maintenance-free compact steering wheel, which includes a support mechanism 1 and a transmission system 2 and a steering system 3 disposed on the support mechanism 1, wherein the transmission system 2 is located on one side of the steering system 3.

[0028] Please see Figure 2The support mechanism 1 includes a lower housing 11, an upper housing 12 mounted on the lower housing 11, and a slewing bearing 13. Both the lower housing 11 and the upper housing 12 are hollow cavity structures with an opening at one end, and the cavities of the lower housing 11 and the upper housing 12 are arranged facing each other. A transmission box 14 is provided at the end of the slewing bearing 13 away from the lower housing 11. The slewing bearing 13 is located between the lower housing 11 and the transmission box 14, and is mounted on the lower housing 11. The transmission system 2 includes a travel drive motor 21 and a first transmission gear mounted above the travel drive motor 21. 22. A second transmission gear 23 and a transmission gear disk 24, wherein the output end of the travel drive motor 21 is connected to the first transmission gear 22, the second transmission gear 23 is disposed between the first transmission gear 22 and the transmission gear disk 24, and the second transmission gear 23 meshes with the first transmission gear 22 and the transmission gear disk 24 respectively. The steering system 3 includes a first steering gear 32, a second steering gear 33 and a steering gear disk 34, the second steering gear 33 is disposed between the first steering gear 32 and the steering gear disk 34, and the second steering gear 33 meshes with the first steering gear 32 and the steering gear disk 34 respectively.

[0029] Please see Figure 3 The transmission gear disk 24 and the steering gear disk 34 are both fixed on the rotating shaft 25. A gear transmission mechanism 26 is provided at the bottom of the rotating shaft 25. The gear transmission mechanism 26 includes a main drive gear 261, on which a driven gear 262 meshes. Both the main drive gear 261 and the driven gear 262 are rotatably connected to the transmission box 14, thus enabling both the main drive gear 261 and the driven gear 262 to operate stably. The steering gear disk 34 is fixed to the inner ring of the slewing bearing 13. The transmission gear disk 24, the rotating shaft 25, and the steering gear disk 34 are all coaxially arranged, with the steering gear disk 34 located below the transmission gear disk 24. Furthermore, the first transmission gear 22, the second transmission gear 23, the transmission gear disk 24, the rotating shaft 25, the gear transmission mechanism 26, the first steering gear 32, the second steering gear 33, and the steering gear disk 34 are all... The second transmission gear 23 and the second steering gear 33 are housed within the cavity formed by the lower housing 11 and the upper housing 12. The support shafts of the second transmission gear 23 and the second steering gear 33 are both fixed within the cavity of the upper housing 12, ensuring stable operation of both gears and maintaining structural stability. Simultaneously, this design achieves maintenance-free operation of the two motors and their wiring harnesses and other electrical components. All transmission components of the transmission system 2 and the steering system 3 are encapsulated within the overall structure formed by the lower housing 11 and the upper housing 12, and lubricated with grease, eliminating the risk of interference from foreign objects. Furthermore, it achieves an extremely compact spatial dimension, improving space utilization. Since the two motors do not rotate with the wheel ends, the rotation diameter of the related transmission structure is significantly reduced, resulting in a smaller space requirement for client-side installation. This allows for greater diversity in application models and scenarios, expanding the application range of the steering wheel.

[0030] Please see Figure 4 The transmission box 14 is a hollow cavity structure with an opening at one end, and a cover plate 15 is fixed at the opening of the cavity of the transmission box 14. An input bevel gear 27 is provided at the bottom of the gear transmission mechanism 26. The rotating shaft 25 is connected to the input bevel gear 27 through the gear transmission mechanism 26. The driven gear 262 is connected to the input bevel gear 27 and is located at the top of the input bevel gear 27. An output bevel gear 28 is meshed at the end of the input bevel gear 27 away from the gear transmission mechanism 26. A wheel 29 is fixed at the end of the output bevel gear 28 away from the input bevel gear 27. Power is transmitted from the input bevel gear 27 to the output bevel gear 28, thereby driving the wheel 29 to rotate. The output bevel gear 28 and the wheel 29 are both mounted on the transmission box 14, so that the output bevel gear 28 and the wheel 29 can operate stably. The output bevel gear 28 and the wheel 29 are both housed in the cavity of the transmission box 14. Therefore, the cover plate 15 is used to seal, lubricate and protect the input bevel gear 27 and the output bevel gear 28.

[0031] Please see Figure 5 The steering system 3 also includes a steering drive motor 31, the output end of which is connected to the first steering gear 32. The travel drive motor 21 is installed on the lower end face of the lower housing 11, and the torque is transmitted to the wheel 29 through the gear transmission mechanism 26. The power transmission is continuous and uninterrupted when the wheel 29 rotates. The steering angle of the wheel 29 is not limited and can rotate continuously 360°. When performing transmission and steering operations, neither the travel drive motor 21 nor the steering drive motor 31 rotates with the wheel 29. Therefore, there is no risk of wire harness entanglement and wear, and after-sales maintenance of the motor and its electrical components such as wire harness is avoided.

[0032] Please see Figure 6 Both the walking drive motor 21 and the steering drive motor 31 are vertically arranged, and both the walking drive motor 21 and the steering drive motor 31 are fixed to the lower end face of the lower housing 11.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A maintenance-free, compact steering wheel, characterized in that: It includes a support mechanism (1) and a transmission system (2) and a steering system (3) disposed on the support mechanism (1), wherein the transmission system (2) is located on one side of the steering system (3); The support mechanism (1) includes a lower housing (11), an upper housing (12) and a slewing bearing (13) disposed on the lower housing (11), and a transmission box (14) is provided at the end of the slewing bearing (13) away from the lower housing (11); The transmission system (2) includes a walking drive motor (21) and a first transmission gear (22), a second transmission gear (23), and a transmission gear disk (24) disposed above the walking drive motor (21). The output end of the walking drive motor (21) is connected to the first transmission gear (22). The second transmission gear (23) is disposed between the first transmission gear (22) and the transmission gear disk (24), and the second transmission gear (23) meshes with both the first transmission gear (22) and the transmission gear disk (24). 4) Fixed on the rotating shaft (25), the bottom of the rotating shaft (25) is provided with a gear transmission mechanism (26) and an input bevel gear (27) in sequence, and the rotating shaft (25) is connected to the input bevel gear (27) through the gear transmission mechanism (26). The end of the input bevel gear (27) away from the gear transmission mechanism (26) is meshed with an output bevel gear (28). The end of the output bevel gear (28) away from the input bevel gear (27) is fixed with a wheel (29), and both the output bevel gear (28) and the wheel (29) are mounted on the transmission box (14); The steering system (3) includes a steering drive motor (31) and a first steering gear (32), a second steering gear (33) and a steering gear disk (34) disposed above the steering drive motor (31). The output end of the steering drive motor (31) is connected to the first steering gear (32). The second steering gear (33) is disposed between the first steering gear (32) and the steering gear disk (34), and the second steering gear (33) meshes with the first steering gear (32) and the steering gear disk (34) respectively. The steering gear disk (34) is fixed to the inner ring of the slewing bearing (13).

2. The maintenance-free compact steering wheel according to claim 1, characterized in that: Both the lower shell (11) and the upper shell (12) are hollow cavity structures with an opening at one end, and the cavity of the lower shell (11) and the cavity of the upper shell (12) are arranged facing each other.

3. The maintenance-free compact steering wheel according to claim 1, characterized in that: The slewing bearing (13) is disposed between the lower housing (11) and the transmission box (14), and the slewing bearing (13) is mounted on the lower housing (11).

4. The maintenance-free compact steering wheel according to claim 3, characterized in that: The transmission box (14) is a hollow cavity structure with an opening at one end, and a cover plate (15) is fixed at the cavity opening of the transmission box (14). The output bevel gear (28) and the wheel (29) are both accommodated in the cavity of the transmission box (14).

5. A maintenance-free compact steering wheel according to claim 1, characterized in that: The walking drive motor (21) and the steering drive motor (31) are both vertically arranged, and both the walking drive motor (21) and the steering drive motor (31) are fixed to the lower end face of the lower housing (11).

6. The maintenance-free compact steering wheel according to claim 1, characterized in that: The transmission gear disk (24), the rotating shaft (25) and the steering gear disk (34) are all coaxially arranged, and the steering gear disk (34) is located below the transmission gear disk (24).

7. A maintenance-free compact steering wheel according to claim 1, characterized in that: The gear transmission mechanism (26) includes a main drive gear (261), on which a driven gear (262) meshes, and both the main drive gear (261) and the driven gear (262) are rotatably connected to the transmission box (14).

8. A maintenance-free compact steering wheel according to claim 7, characterized in that: The driven gear (262) is connected to the input bevel gear (27), and the driven gear (262) is located on top of the input bevel gear (27).

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