Single-motor switching steering driving wheel system

Abstract

The utility model discloses a single-motor switching steering driving wheel system which comprises a main driving structure, an action driving structure, a steering driving structure, wheels and a vehicle chassis frame, and the main driving structure comprises a motor main shaft and a motor driving gear. The center of the motor driving gear is fixedly connected with one end of the motor main shaft; the action driving structure is in transmission connection with the motor driving gear; the steering driving structure is in transmission connection with the motor driving gear; the wheels are fixedly connected with the action driving structure; and the main driving structure, the action driving structure and the steering driving structure are fixed on the vehicle chassis frame. Compared with the prior art, the single-motor switching steering driving wheel system has the advantage that the steering function and the driving function are independently controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of transport vehicles, in particular to a single-motor switching steering drive wheel system. Background Art

[0002] The steering and drive systems are crucial components of a vehicle. Conventional technology employs two independently controlled systems. The steering system requires a motor and actuator to control the vehicle's steering function. The drive system, comprised of a drive motor and transmission structure, ensures the vehicle's driving force. Conventional technology requires a larger space, is complex, and is costly.

[0003] Therefore, how to provide a single-motor switching steering drive wheel system that can achieve the technical effect of steering and driving being independent of each other while also maintaining coordinated cooperation is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of the problems existing in the prior art, the technical problem to be solved by the present invention is to provide a single-motor switching steering drive wheel system, so that it can achieve the technical effect of steering and driving being independent of each other while also maintaining coordination and cooperation.

[0005] To achieve the above-mentioned objectives, the present invention provides a single-motor switching steering drive wheel system, which includes: a main drive structure, wherein the main drive structure includes a motor main shaft and a motor drive gear, and the center of the motor drive gear is fixedly connected to one end of the motor main shaft; a movement drive structure, wherein the movement drive structure is transmission-connected to the motor drive gear; a steering drive structure, wherein the steering drive structure is transmission-connected to the motor drive gear; a wheel, wherein the wheel is fixedly connected to the movement drive structure; and a vehicle chassis frame, wherein the main drive structure, the movement drive structure and the steering drive structure are fixed on the vehicle chassis frame.

[0006] In the first aspect, the action drive structure includes: a driving switch gear, one side of the driving switch gear is meshed with one side of the motor driving gear; a first driving transmission gear, the first driving transmission gear is meshed with the other side of the driving switch gear; an action drive shaft, one end of the action drive shaft is fixedly connected to the center of the first driving transmission gear; and a transmission bearing, the transmission bearing is rotatably connected to the action drive shaft.

[0007] In the first aspect, the action drive structure also includes: a second drive transmission gear, the second drive transmission gear has a conical structure, the center of the second drive transmission gear is fixedly connected to the other end of the action drive shaft; a third drive transmission gear, the third drive transmission gear is located below the second drive transmission gear, and the third drive transmission gear is engaged with the second drive transmission gear.

[0008] In the first aspect, the action drive structure also includes: a first transmission shaft, the first transmission shaft is located below the action drive shaft, and the first transmission shaft is arranged perpendicular to the action drive shaft; a first drive sprocket, the first drive sprocket is fixedly connected to one end of the first transmission shaft; a second transmission shaft, the second transmission shaft is located below the first transmission shaft, and the second transmission shaft is arranged parallel to the first transmission shaft; a second drive sprocket, the second drive sprocket is fixedly connected to one end of the second transmission shaft; a drive chain, the drive chain is sequentially sleeved on the first drive sprocket and the second drive sprocket; wherein, the first transmission shaft is located at the center of the third drive transmission gear, and the first transmission shaft is fixedly connected to the third drive transmission gear; the center of the wheel has a second transmission through hole, the second transmission shaft is located at the center of the wheel, and the second transmission shaft is fixedly connected to the wheel.

[0009] In the first aspect, the action drive structure also includes: a driving switch, the driving switch includes a driving transmission member, a driving up and down moving member and a driving switching member, one end face of the driving transmission member is fixedly connected to one end of the driving up and down moving member, the other end face of the driving transmission member is fixedly connected to the center of the driving switch gear, and one end face of the driving switching member is fixedly connected to the other end of the driving up and down moving member; a driving switch bracket, the middle part of one end face of the driving switch bracket is fixedly connected to the other end face of the driving switching member, and both ends of one end face of the driving switch bracket are fixedly connected to the lower end face of the vehicle chassis frame; wherein, a first chassis through-hole is opened on the vehicle chassis frame, and the first chassis through-hole is adapted to the driving switching member.

[0010] In the first aspect, the main drive structure also includes: a motor body, the other end of the motor shaft is rotatably connected to the motor body; a motor fixing bracket, a motor through-hole is provided at the center of the motor fixing bracket, one end face of the motor fixing bracket is fixedly connected to the motor body, and the other end face of the motor fixing bracket is fixedly connected to the lower end face of the vehicle chassis frame; wherein, a second chassis through-hole is also provided on the vehicle chassis frame, the motor through-hole and the second chassis through-hole are located on the same straight line, and the inner diameters of the motor through-hole and the second chassis through-hole are both larger than the outer diameter of the motor shaft.

[0011] In the first aspect, the steering drive structure includes a fork frame, the fork frame includes: a fork frame fixing bracket, the center of the fork frame fixing bracket is provided with a first steering through hole, one end of the fork frame fixing bracket is fixedly connected to the lower end surface of the vehicle chassis frame; a stabilizing bracket, the center of the stabilizing bracket is provided with a second steering through hole, one end of the stabilizing bracket is fixedly connected to the other end of the fork frame fixing bracket; a fork frame, the fork frame includes a fork fixer and two support bars, the center of the fork fixer is provided with a third steering through hole; one end of one of the support bars is fixed to the fork The fork-shaped fixer is fixed on one end side wall, and one end of the other support bar is fixed on one end side wall of the fork-shaped fixer; the other end of the fork-shaped fixer is rotatably connected to the other end of the stabilizing bracket; wherein, the transmission bearing is fixed in the stabilizing bracket, and a third chassis through-hole is further provided on the vehicle chassis frame, and the first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are located on the same straight line, and the inner diameters of the first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are larger than the outer diameter of the action drive shaft.

[0012] In the first aspect, the second drive transmission gear and the third drive transmission gear are both located between the two branches, and a first branch shaft through-hole is provided at one end of each branch close to the fork-shaped fixer, one end of the first transmission shaft is rotatably connected to one branch, the other end of the first transmission shaft is rotatably connected to the other branch, and the first drive sprocket is located on the outside of one branch; a second branch shaft through-hole is provided at the other end of each branch, one end of the second transmission shaft is rotatably connected to one branch, the other end of the second transmission shaft is rotatably connected to the other branch, and the second drive sprocket is located on the outside of one branch.

[0013] In the first aspect, the steering drive structure also includes: a steering switch gear, one side of the steering switch gear is meshed with the other side of the motor drive gear; a steering transfer gear, the steering transfer gear is meshed with the other side of the steering switch gear; a steering drive shaft, one end of the steering drive shaft is fixedly connected to the center of the steering transfer gear; a first steering sprocket, the center of the first steering sprocket is fixedly connected to the other end of the steering drive shaft; a second steering sprocket, a fixer through-hole is provided in the center of the second steering sprocket, the fork-shaped fixer is located at the center of the second steering sprocket, and the second steering sprocket is fixedly connected to the fork-shaped fixer; a steering transfer chain, the steering transfer chain is sequentially sleeved on the first steering sprocket and the second steering sprocket.

[0014] In the first aspect, the steering drive structure further includes: a steering wheel switch, the steering wheel switch including a steering transmission member, a steering up and down moving member and a steering switch, one end face of the steering transmission member is fixedly connected to one end of the steering up and down moving member, the other end face of the steering transmission member is fixedly connected to the center of the steering switch gear, and one end face of the steering switch is fixedly connected to the other end of the steering up and down moving member; a steering switch bracket, the middle part of one end face of the steering switch bracket is fixedly connected to the other end face of the steering switch, and one end face of the steering switch bracket is fixedly connected to the other end face of the steering switch. Both ends are fixedly connected to the lower end surface of the vehicle chassis frame; a steering gear fixing frame, a fourth steering through-hole is provided in the center of the steering gear fixing frame, one end surface of the steering gear fixing frame is fixedly connected to the lower end surface of the vehicle chassis frame, and the steering gear fixing frame is rotatably connected to the steering drive shaft; wherein, a fourth chassis through-hole and a fifth chassis through-hole are also provided on the vehicle chassis frame, and the fourth chassis through-hole is adapted to the steering on-off piece; the fourth steering through-hole and the fifth chassis through-hole are located on the same straight line, and the inner diameter of the fifth chassis through-hole is larger than the outer diameter of the steering drive shaft.

[0015] Beneficial effects:

[0016] The utility model discloses a single motor switching steering drive wheel system mainly includes a main drive structure, an action drive structure and a steering drive structure. The main drive structure drives the motor main shaft to rotate through the motor connected to the other end of the motor main shaft, thereby causing the motor drive gear to rotate; the action drive structure is driven by the motor drive gear, and the main transmission structure of the action drive structure includes a drive breaker, a drive breaker gear, an action drive shaft, a first drive transmission gear, a second drive transmission gear, a third drive transmission gear, a first transmission shaft, a first drive sprocket, a drive chain, a second drive sprocket and a second transmission shaft. When the wheel needs to move forward or backward, the drive breaker gear is raised to a position respectively aligned with the motor drive gear and the third drive gear through the drive breaker. A driving transmission gear is engaged, so that the rotation of the motor driving gear drives the driving switch gear to rotate, thereby driving the first driving transmission gear to rotate. Since the first driving transmission gear is fixedly connected to one end of the action driving shaft, and the other end of the action driving shaft is fixedly connected to the second driving transmission gear, the rotation of the first driving transmission gear drives the second driving transmission gear to rotate. The second driving transmission gear is engaged with the third driving transmission gear, so that the third driving transmission gear rotates. The first transmission shaft is fixed to the center of the third driving transmission gear, and the first driving sprocket is fixed to one end of the first transmission shaft. The third driving transmission shaft drives the first driving sprocket to rotate, and then drives the second driving sprocket to rotate through the action of the drive chain, thereby driving the second driving sprocket. The shaft rotates to make the wheels move forward or backward. When the wheels do not need to move forward or backward, the drive switch gear can be raised without driving the switch; the main transmission structure of the steering drive structure includes a steering switch, a steering switch gear, a steering transfer gear, a steering drive shaft, a first steering sprocket, a steering transfer chain, and a second steering sprocket. When the wheels need to make steering movements, the steering switch gear is raised through the steering wheel switch to engage with the motor drive gear and the steering transfer gear respectively. The rotation of the motor drive gear drives the steering switch gear to rotate, thereby driving the steering transfer gear to rotate. Since the steering transfer gear and the first steering sprocket share the steering drive shaft, the first steering sprocket is driven by the steering drive shaft. The second steering sprocket is rotated, and then the steering transmission chain is used to rotate the second steering sprocket. Since the second steering sprocket is fixedly connected to the fork-shaped fixer, and the fork fixer is rotatably connected to the stabilizing bracket, the rotation of the second steering sprocket drives the fork fixer to rotate, thereby causing the wheel to steer. When the wheel does not need to steer, the steering switch gear can be raised without the steering wheel switch; according to the movement requirements of the wheel, forward or backward, steering movement can be performed respectively, or forward or backward, and steering movement can be performed simultaneously. It can be seen that the steering wheel switch and the steering switch gear of the steering drive structure, and the drive switch and the drive switch gear of the action drive structure can realize that steering and driving can be performed independently or synchronously;Furthermore, the present invention transmits the motor's torque to the steering drive structure and the motion drive structure separately through gear transmission, or chain transmission. Gear transmission can vary the magnitude of the transmitted torque and speed through the gear ratio. The present invention's single-motor switching steering drive wheel system features ingenious assembly details and simple control. Simply controlling the movement of a single motor satisfies both steering and driving functions, while reducing costs. Simultaneously, the steering wheel switch and steering switch gear, as well as the drive switch and drive switch gear, enable independent control of the steering and driving functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural cross-sectional view of a single-motor switching steering drive wheel system of the utility model;

[0019] Figure 2 This is a top view of the structure of a single-motor switching steering drive wheel system of the utility model;

[0020] Figure 3 This is a structural side view of a single-motor switching steering drive wheel system of the utility model;

[0021] Figure 4 yes Figure 3 The stable bracket and the internal structure diagram below;

[0022] Figure 5 This is a schematic diagram of the structure of the motion drive structure of the utility model driving the wheels forward or backward;

[0023] Figure 6 This is a structural diagram of a drive switch of the utility model;

[0024] Figure 7 The utility model is a structural diagram of a steering wheel switch.

[0025] Reference numerals:

[0026] 1. Motor spindle; 2. Motor drive gear; 3. Wheel; 4. Vehicle chassis; 5. Drive switch gear; 6. First drive transmission gear; 7. Motion drive shaft; 8. Drive bearing; 9. Second drive transmission gear; 10. Third drive transmission gear; 11. First drive shaft; 12. First drive sprocket; 13. Second drive shaft; 14. Second drive sprocket; 15. Drive chain; 16. Drive switch; 1601. Drive transmission member; 1602. Drive vertical movement member; 1603. Drive switch; 17. Drive switch bracket; 18. Motor body. 19. Motor fixing bracket; 20. Fork frame; 2001. Fork frame fixing bracket; 2002. Stabilizing bracket; 2003. Fork bracket; 20031. Fork fixer; 20032. Support bar; 21. Steering switch gear; 22. Steering transmission gear; 23. Steering drive shaft; 24. First steering sprocket; 25. Second steering sprocket; 26. Steering transmission chain; 27. Steering wheel switch; 2701. Steering transmission part; 2702. Steering up and down moving part; 2703. Steering switch; 28. Steering switch bracket; 29. ​​Steering gear fixing bracket. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the embodiments described are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this utility model.

[0028] Example 1

[0029] like Figures 1 to 7 As shown, this embodiment 1 provides a single-motor switching steering drive wheel system, and the single-motor switching steering drive wheel system includes: a main drive structure, the main drive structure includes a motor main shaft 1 and a motor drive gear 2, and the center of the motor drive gear 2 is fixedly connected to one end of the motor main shaft 1; a movement drive structure, the movement drive structure is transmission-connected to the motor drive gear 2; a steering drive structure, the steering drive structure is transmission-connected to the motor drive gear; a wheel 3, the wheel 3 is fixedly connected to the movement drive structure; and a vehicle chassis frame 4, the main drive structure, the movement drive structure and the steering drive structure are fixed on the vehicle chassis frame 4.

[0030] A single-motor switching steering drive wheel system of the present invention mainly includes a main drive structure, an action drive structure and a steering drive structure. The main drive structure drives the motor main shaft 1 to rotate through the motor connected to the other end of the motor main shaft 1, thereby rotating the motor drive gear 2. In addition, a single-motor switching steering drive wheel system of the present invention also includes a controller, which is connected to the motor and controls the operation of the motor through the controller; the action drive structure is driven by the motor drive gear 2, and the main transmission structure of the action drive structure includes a drive breaker 16, a drive breaker gear 5, an action drive shaft 7, a first drive transmission gear 6, a second drive transmission gear 9, a third drive transmission gear 10, a first transmission shaft 11, a first drive sprocket 12, a drive chain 15, a second drive sprocket 14 and a second transmission shaft 13. When the wheel 3 needs to move forward or backward, the drive breaker gear 5 is raised to a position respectively connected to the motor drive gear 2 and the first drive transmission gear through the drive breaker 16. The gear 6 is engaged, so that the rotation of the motor drive gear 2 drives the drive switch gear 5 to rotate, thereby driving the first drive transmission gear 6 to rotate. Since the first drive transmission gear 6 is fixedly connected to one end of the action drive shaft 7, and the other end of the action drive shaft 7 is fixedly connected to the second drive transmission gear 9, the first drive transmission gear 6 is rotated to drive the second drive transmission gear 9 to rotate. The second drive transmission gear 9 is engaged with the third drive transmission gear 10, so that the third drive transmission gear 10 rotates. The first transmission shaft 11 is fixed to the center of the third drive transmission gear 10, and the first drive sprocket 12 is fixed to one end of the first transmission shaft 11. The third drive transmission gear 10 drives the first drive sprocket 12 to rotate, and then drives the second drive sprocket 14 to rotate through the action of the drive chain 15, thereby driving the second transmission shaft 13 to rotate, so that the wheel 3 moves forward or backward. When the wheel 3 does not need to move forward or backward, the drive switch gear 5 can be driven without raising the drive switch 16;The main transmission structure of the steering drive structure includes a steering wheel switch 27, a steering switch gear 21, a steering transfer gear 22, a steering drive shaft 23, a first steering sprocket 24, a steering transfer chain 26, and a second steering sprocket 25. When the wheel 3 needs to make a steering movement, the steering switch gear 21 is raised by the steering wheel switch 27 to engage with the motor drive gear 2 and the steering transfer gear 22 respectively. The rotation of the motor drive gear 2 drives the steering switch gear 21 to rotate, thereby driving the steering transfer gear 22 to rotate. Since the steering transfer gear 22 is engaged with the first steering chain The wheel 24 is driven by the steering drive shaft 23, so that the first steering sprocket 24 is driven to rotate by the steering drive shaft 23, and the second steering sprocket 25 is rotated by the steering transmission chain 26. Since the second steering sprocket 25 is fixedly connected to the fork-shaped holder 20031, and the fork-shaped holder 20031 is rotatably connected to the stabilizing bracket 2002, the rotation of the second steering sprocket 25 drives the fork-shaped holder 20031 to rotate, thereby causing the wheel 3 to steer. When the wheel 3 does not need to steer, the steering switch gear 21 can be raised without the steering wheel switch 27. According to the movement requirements of the wheel 3, the wheel 3 can be moved forward or backward, turned, or moved forward or backward and turned at the same time. It can be seen that the steering wheel switch 27 and the steering switch gear 21 of the steering drive structure, the drive switch 16 and the drive switch gear 5 of the action drive structure can realize that steering and driving can be performed independently or synchronously. The steering wheel switch 27 and the drive switch 16 are respectively connected to the controller, and the controller controls the steering wheel switch 27 and the drive switch 16 to respectively make the steering switch gear 21 and the drive switch gear 5 rise or fall; Furthermore, the present invention transmits the motor's torque to the steering drive structure and the motion drive structure separately through gear transmission, or chain transmission. Gear transmission can vary the magnitude of the transmitted torque and speed through the gear ratio. The present invention's single-motor switching steering drive wheel system features ingenious assembly details and simple control. Simply controlling the movement of a single motor satisfies both steering and driving functions, while reducing costs. Simultaneously, the steering wheel switch 27 and steering switch gear 21, as well as the drive switch 16 and drive switch gear 5, enable independent control of the steering and driving functions.

[0031] In some possible implementations, the action drive structure includes: a driving switch gear 5, one side of the driving switch gear 5 is engaged with one side of the motor drive gear 2; a first driving transmission gear 6, the first driving transmission gear 6 is engaged with the other side of the driving switch gear 5; an action drive shaft 7, one end of the action drive shaft 7 is fixedly connected to the center of the first driving transmission gear 6; and a transmission bearing 8, the transmission bearing 8 is rotatably connected to the action drive shaft 7.

[0032] Specifically, the rotation of the motor drive gear 2 drives the drive switch gear 5 to rotate, thereby rotating the first drive transmission gear 6, and the rotation of the first drive transmission gear 6 rotates the action drive shaft 7, and the transmission bearing 8 is used to support the action drive shaft 7.

[0033] In some possible implementations, the action drive structure also includes: a second drive transmission gear 9, which has a conical structure, and the center of the second drive transmission gear 9 is fixedly connected to the other end of the action drive shaft 7; a third drive transmission gear 10, which is located below the second drive transmission gear 9, and the third drive transmission gear 10 is engaged with the second drive transmission gear 9.

[0034] Specifically, the second drive transmission gear 9 has a conical structure, and the second drive transmission gear 9 and the third drive transmission gear 10 are vertically arranged. The second drive transmission gear and the third drive transmission gear are meshed, so that when the second drive transmission gear rotates, the third drive transmission gear is driven to rotate.

[0035] In some possible implementations, the movement drive structure further includes: a first transmission shaft 11, the first transmission shaft 11 is located below the movement drive shaft 7, and the first transmission shaft 11 is arranged perpendicular to the movement drive shaft 7; a first drive sprocket 12, the first drive sprocket 12 is fixedly connected to one end of the first transmission shaft 11; a second transmission shaft 13, the second transmission shaft 13 is located below the first transmission shaft 11, and the second transmission shaft 13 is arranged parallel to the first transmission shaft 11; a second drive sprocket 14, the second drive sprocket 14 is fixedly connected to one end of the second transmission shaft 13; a drive chain 15, the drive chain 15 is sequentially sleeved on the first drive sprocket 12 and the second drive sprocket 14; wherein, the first transmission shaft 11 is located at the center of the third drive transmission gear 10, and the first transmission shaft 11 is fixedly connected to the third drive transmission gear 10; the center of the wheel 3 has a second transmission through hole, the second transmission shaft 13 is located at the center of the wheel 3, and the second transmission shaft 13 is fixedly connected to the wheel 3.

[0036] Specifically, the first transmission shaft 11 passes through the center of the third drive transmission gear 10, and the first transmission shaft 11 is fixedly connected to the third drive transmission gear 10, so that when the third drive transmission gear 10 rotates, the first transmission shaft 11 is driven to rotate; a first drive sprocket 12 is fixed to one end of the first transmission shaft 11, so that when the first transmission shaft 11 rotates, the first drive sprocket 12 is driven to rotate; the first drive sprocket 12 drives the second drive sprocket 14 to rotate through the drive chain 15, thereby rotating the second transmission shaft 13, thereby causing the wheel 3 to move forward or backward.

[0037] In some possible implementations, the action drive structure also includes: a driving switch 16, the driving switch 16 including a driving transmission member 1601, a driving up and down moving member 1602 and a driving switch 1603, one end face of the driving transmission member 1601 is fixedly connected to one end of the driving up and down moving member 1602, the other end face of the driving transmission member 1601 is fixedly connected to the center of the driving switch gear 5, and one end face of the driving switch 16 is fixedly connected to the other end of the driving up and down moving member 1602; a driving switch bracket 17, the middle part of one end face of the driving switch bracket 17 is fixedly connected to the other end face of the driving switch 1603, and the two ends of one end face of the driving switch bracket 17 are fixedly connected to the lower end face of the vehicle chassis frame 4; wherein, a first chassis through-hole is opened on the vehicle chassis frame 4, and the first chassis through-hole is adapted to the driving switch 1603.

[0038] Specifically, the driving switch 16 is used to make the driving switch gear 5 rise and engage with the motor driving gear 2, or to make the driving switch gear 5 fall and disengage from the motor driving gear 2. The driving switch 16 includes a driving transmission member 1601, a driving up and down moving member 1602 and a driving switch member 1603. The driving up and down moving member 1602 is a spring structure, and the driving up and down moving member 1602 is ensured by electromagnetic force or pneumatic means. The driving transmission member 1601 is used to transmit the power of the driving up and down moving member 1602 to rise or fall, so that the driving switch gear 5 rises or falls.

[0039] In some possible implementations, the main drive structure also includes: a motor body 18, the other end of the motor main shaft 1 is rotatably connected to the motor body 18; a motor fixing bracket 19, a motor through-hole is provided at the center of the motor fixing bracket 19, one end face of the motor fixing bracket 19 is fixedly connected to the motor body 18, and the other end face of the motor fixing bracket 19 is fixedly connected to the lower end face of the vehicle chassis frame 4; wherein, a second chassis through-hole is also provided on the vehicle chassis frame 4, the motor through-hole and the second chassis through-hole are located on the same straight line, and the inner diameters of the motor through-hole and the second chassis through-hole are both larger than the outer diameter of the motor main shaft 1.

[0040] Specifically, the motor body 18 is used to support the motor spindle 1. One end of the motor spindle 1 in the motor body 18 is connected to the motor, and the motor is connected to the controller. The motor is controlled by the controller to drive the motor spindle 1 to rotate; the motor fixing bracket 19 is used to fix the motor body 18 on the lower end surface of the vehicle chassis frame 4. The motor through-hole is used for the motor spindle 1 to pass through, and the second chassis through-hole is used for the motor spindle 1 to pass through the vehicle chassis frame 4, so that the motor drive gear 2 is located above the vehicle chassis frame 4.

[0041] In some possible implementations, the steering drive structure includes a fork frame 20, and the fork frame 20 includes: a fork frame fixing bracket 2001, a first steering through-hole is provided at the center of the fork frame fixing bracket 2001, and one end of the fork frame fixing bracket 2001 is fixedly connected to the lower end surface of the vehicle chassis frame 4; a stabilizing bracket 2002, a second steering through-hole is provided at the center of the stabilizing bracket 2002, and one end of the stabilizing bracket 2002 is fixedly connected to the other end of the fork frame fixing bracket 2001; a fork frame 2003, the fork frame 2003 includes a fork fixer 20031 and two struts 20032, and a third steering through-hole is provided at the center of the fork fixer 20031; a One end of the support bar 20032 is fixed to the side wall of one end of the fork-shaped fixer 20031, and one end of the other support bar 20032 is fixed to the side wall of one end of the fork-shaped fixer 20031; the other end of the fork-shaped fixer 20031 is rotatably connected to the other end of the stabilizing bracket 2002; wherein, the transmission bearing 8 is fixed in the stabilizing bracket 2002, and a third chassis through-hole is also provided on the vehicle chassis frame 4, and the first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are located on the same straight line, and the inner diameters of the first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are larger than the outer diameter of the action drive shaft 7.

[0042] Specifically, the fork frame fixing frame 2001 is used to fix the fork frame 10 on the lower end surface of the vehicle chassis frame 4, and the stabilizing bracket 2002 is fixedly connected to the fork frame fixing frame 2001. The stabilizing bracket 2002 is used to fix the transmission bearing 8, and the transmission bearing 8 is used to support the action drive shaft 7; the fork-shaped fixer 20031 is rotatably connected to the stabilizing bracket 2002, and the two branches 20032 and the fork-shaped fixer 20031 form a fork-shaped bracket 2003, and the two ends of the second transmission shaft 13 pass through one end of the two branches respectively, so that the connection between the fork-shaped bracket 2003 and the wheel 3 is more stable, thereby making the forward, backward and steering of the wheel 3 more stable, and the first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are all used for the action drive shaft 7 to pass through.

[0043] In some possible implementations, the second drive transmission gear 9 and the third drive transmission gear 10 are both located between the two branches 20032, and each branch 20032 is provided with a first branch shaft through-hole at one end close to the fork-shaped fixer 20031, one end of the first transmission shaft 11 is rotatably connected to one branch 20032, the other end of the first transmission shaft 11 is rotatably connected to another branch 20032, and the first drive sprocket 12 is located on the outside of one branch 20032; the other end of each branch 20032 is provided with a second branch shaft through-hole, one end of the second transmission shaft is rotatably connected to one branch 20032, the other end of the second transmission shaft 13 is rotatably connected to another branch 20032, and the second drive sprocket 14 is located on the outside of one branch 20032.

[0044] Specifically, the rotation of the first transmission shaft 11 drives the first drive sprocket 12 to rotate, and the rotation of the first drive sprocket 12 combined with the drive chain 15 rotates the second drive sprocket 14, thereby rotating the second transmission shaft 13 and the wheels move forward or backward.

[0045] In some possible implementations, the steering drive structure also includes: a steering switch gear 21, one side of the steering switch gear 21 is meshed with the other side of the motor drive gear 2; a steering transfer gear 22, the steering transfer gear 22 is meshed with the other side of the steering switch gear 21; a steering drive shaft 23, one end of the steering drive shaft 23 is fixedly connected to the center of the steering transfer gear 22; a first steering sprocket 24, the center of the first steering sprocket 24 is fixedly connected to the other end of the steering drive shaft 23; a second steering sprocket 25, a fixer through-hole is provided in the center of the second steering sprocket 25, the fork-shaped fixer 20031 is located at the center of the second steering sprocket 25, and the second steering sprocket 25 is fixedly connected to the fork-shaped fixer 20031; a steering transfer chain 26, the steering transfer chain 26 is sequentially sleeved on the first steering sprocket 24 and the second steering sprocket 25.

[0046] Specifically, the rotation of the motor drive gear 2 drives the steering switch gear 21 to rotate, thereby rotating the steering transfer gear 22. Since the steering transfer gear 22 and the first steering sprocket 24 share a common axis, that is, a dedicated drive axis, the first steering sprocket 24 rotates; the second steering sprocket 25 is sleeved on the periphery of the fork-shaped fixture 20031 and is fixedly connected to the fork-shaped fixture 20031. The rotation of the first steering sprocket 24 is transmitted to the second steering sprocket 25 through the steering transmission chain 26, causing the second steering sprocket 25 to rotate. Since the fork-shaped fixture 20031 is rotatably connected to the stabilizing bracket 2002, the rotation of the second steering sprocket 25 causes the fork-shaped fixture 20031 to rotate, thereby driving the wheel 3 to steer.

[0047] In some possible implementations, the steering drive structure further includes: a steering wheel switch 27, the steering wheel switch 27 including a steering transmission member 2701, a steering up and down motion member 2702 and a steering switch 2703, one end face of the steering transmission member 2701 is fixedly connected to one end of the steering up and down motion member 2702, the other end face of the steering transmission member 2701 is fixedly connected to the center of the steering switch gear 21, and one end face of the steering switch 2703 is fixedly connected to the other end of the steering up and down motion member 2702; a steering switch bracket 28, the middle portion of one end face of the steering switch bracket 28 is fixedly connected to the other end face of the steering switch 2703, Both ends of one end face of the steering switch bracket 28 are fixedly connected to the lower end face of the vehicle chassis frame 4; a steering gear fixing frame 29, a fourth steering through-hole is provided in the center of the steering gear fixing frame 29, one end face of the steering gear fixing frame 29 is fixedly connected to the lower end face of the vehicle chassis frame 4, and the steering gear fixing frame 29 is rotatably connected to the steering drive shaft 23; wherein, a fourth chassis through-hole and a fifth chassis through-hole are also provided on the vehicle chassis frame 4, and the fourth chassis through-hole is adapted to the steering switch 2703; the fourth steering through-hole and the fifth chassis through-hole are located on the same straight line, and the inner diameter of the fifth chassis through-hole is larger than the outer diameter of the steering drive shaft 23.

[0048] Specifically, the steering wheel switch 27 is used to make the steering switch gear 21 rise and engage with the motor drive gear 2, or to make the steering switch gear 21 fall and disengage from the motor drive gear 2. The steering wheel switch 27 includes a steering transmission member 2701, a steering up and down moving member 2702 and a steering switch member 2703. The steering up and down moving member 2702 is a spring structure, which ensures the up and down movement of the steering up and down moving member 2702 by electromagnetic force or pneumatic means. The steering transmission member 2701 is used to transmit the power of the steering up and down moving member 2702 to rise or fall, so that the steering switch gear 21 rises or falls. The steering switch bracket 28 is used to fix and support the steering wheel switch; the steering gear fixing frame 29 is used to support the steering drive shaft 23.

[0049] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A single motor switching steering drive wheel system, characterized in that: The single-motor switching steering drive wheel system includes: A main drive structure, comprising a motor main shaft and a motor drive gear, wherein the center of the motor drive gear is fixedly connected to one end of the motor main shaft; A motion drive structure, the motion drive structure being in driving connection with the motor drive gear; A steering drive structure, the steering drive structure being in driving connection with the motor drive gear; wheels, the wheels being fixedly connected to the motion drive structure; A vehicle chassis frame, on which the main drive structure, the movement drive structure and the steering drive structure are fixed.

2. A single motor switching steering drive wheel system according to claim 1, characterized in that: The action-driven structure includes: a driving switch gear, one side of which is engaged with one side of the motor driving gear; a first drive transmission gear, the first drive transmission gear being meshed with the other side of the drive switch gear; A motion drive shaft, one end of which is fixedly connected to the center of the first drive transmission gear; A transmission bearing is rotatably connected to the action drive shaft.

3. A single motor switching steering drive wheel system as claimed in claim 2, characterized in that: The action-driven structure also includes: a second driving transmission gear, the second driving transmission gear having a conical structure, the center of the second driving transmission gear being fixedly connected to the other end of the action driving shaft; A third driving transmission gear is located below the second driving transmission gear and is meshed with the second driving transmission gear.

4. A single motor switching steering drive wheel system as claimed in claim 3, characterized in that: The action-driven structure also includes: a first transmission shaft, the first transmission shaft being located below the motion drive shaft and being arranged perpendicular to the motion drive shaft; a first driving sprocket, the first driving sprocket being fixedly connected to one end of the first transmission shaft; a second transmission shaft, the second transmission shaft being located below the first transmission shaft and arranged parallel to the first transmission shaft; a second driving sprocket, the second driving sprocket being fixedly connected to one end of the second transmission shaft; A drive chain, wherein the drive chain is sequentially sleeved on the first drive sprocket and the second drive sprocket; Among them, the first transmission shaft is located at the center of the third drive transmission gear, and the first transmission shaft is fixedly connected to the third drive transmission gear; the center of the wheel has a second transmission through hole, the second transmission shaft is located at the center of the wheel, and the second transmission shaft is fixedly connected to the wheel.

5. A single motor switching steering drive wheel system as claimed in claim 4, characterized in that: The action-driven structure also includes: A drive switch, comprising a drive transmission member, a drive vertical motion member, and a drive switching member, wherein one end surface of the drive transmission member is fixedly connected to one end of the drive vertical motion member, the other end surface of the drive transmission member is fixedly connected to the center of the drive switch gear, and one end surface of the drive switching member is fixedly connected to the other end of the drive vertical motion member; a driving switch bracket, wherein a middle portion of one end surface of the driving switch bracket is fixedly connected to the other end surface of the driving switch member, and both ends of one end surface of the driving switch bracket are fixedly connected to the lower end surface of the vehicle chassis frame; Wherein, a first chassis through-hole is opened on the vehicle chassis frame, and the first chassis through-hole is adapted to the driving on-off component.

6. A single motor switching steering drive wheel system as claimed in claim 5, characterized in that: The main drive structure also includes: a motor body, the other end of the motor main shaft being rotatably connected to the motor body; a motor fixing bracket, wherein a motor through-hole is formed in the center of the motor fixing bracket, one end surface of the motor fixing bracket is fixedly connected to the motor body, and the other end surface of the motor fixing bracket is fixedly connected to the lower end surface of the vehicle chassis frame; The vehicle chassis frame is further provided with a second chassis through-hole, the motor through-hole and the second chassis through-hole are located on the same straight line, and the inner diameters of the motor through-hole and the second chassis through-hole are both larger than the outer diameter of the motor main shaft.

7. A single motor switching steering drive wheel system as claimed in claim 6, characterized in that: The steering drive structure includes a fork frame, and the fork frame includes: a fork-shaped frame fixing bracket, wherein a first turning through-hole is formed in the center of the fork-shaped frame fixing bracket, and one end of the fork-shaped frame fixing bracket is fixedly connected to the lower end surface of the vehicle chassis frame; A stabilizing bracket, wherein a second turning through hole is formed in the center of the stabilizing bracket, and one end of the stabilizing bracket is fixedly connected to the other end of the fork-shaped fixing bracket; A fork-shaped bracket, comprising a fork-shaped holder and two legs, wherein a third turning through-hole is formed in the center of the fork-shaped holder; one end of one leg is fixed to a side wall of one end of the fork-shaped holder, and one end of the other leg is fixed to a side wall of one end of the fork-shaped holder; the other end of the fork-shaped holder is rotatably connected to the other end of the stabilizing bracket; In which, the transmission bearing is fixed in the stabilizing bracket, and a third chassis through-hole is also provided on the vehicle chassis frame. The first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are located on the same straight line, and the inner diameters of the first steering through-hole, the second steering through-hole, the third steering through-hole and the third chassis through-hole are larger than the outer diameter of the action drive shaft.

8. The single-motor switching steering drive wheel system according to claim 7, characterized in that: The second drive transmission gear and the third drive transmission gear are both located between the two branches, and a first branch shaft through-hole is provided at one end of each branch close to the fork-shaped fixer, one end of the first transmission shaft is rotatably connected to one branch, the other end of the first transmission shaft is rotatably connected to the other branch, and the first drive sprocket is located on the outside of one branch; a second branch shaft through-hole is provided at the other end of each branch, one end of the second transmission shaft is rotatably connected to one branch, the other end of the second transmission shaft is rotatably connected to the other branch, and the second drive sprocket is located on the outside of one branch.

9. A single motor switching steering drive wheel system as claimed in claim 8, characterized in that: The steering drive structure includes: a steering switch gear, one side of which is meshed with the other side of the motor drive gear; a steering transmission gear, the steering transmission gear being meshed with the other side of the steering switch gear; A steering drive shaft, one end of which is fixedly connected to the center of the steering transmission gear; a first steering sprocket, the center of which is fixedly connected to the other end of the steering drive shaft; A second steering sprocket, wherein a fixer through-hole is provided at the center of the second steering sprocket, the fork-shaped fixer is located at the center of the second steering sprocket, and the second steering sprocket is fixedly connected to the fork-shaped fixer; A steering transmission chain is sequentially sleeved on the first steering sprocket and the second steering sprocket.

10. The single motor switching steering drive wheel system according to claim 9, characterized in that: The steering drive structure further includes: A steering wheel switch, comprising a steering transmission member, a steering up-and-down moving member, and a steering switch; one end face of the steering transmission member is fixedly connected to one end of the steering up-and-down moving member; the other end face of the steering transmission member is fixedly connected to the center of the steering switch gear; and one end face of the steering switch is fixedly connected to the other end of the steering up-and-down moving member; A steering switch bracket, wherein a middle portion of one end surface of the steering switch bracket is fixedly connected to the other end surface of the steering switch member, and both ends of one end surface of the steering switch bracket are fixedly connected to the lower end surface of the vehicle chassis frame; a steering gear fixing frame, wherein a fourth steering through-hole is formed in the center of the steering gear fixing frame, one end surface of the steering gear fixing frame is fixedly connected to the lower end surface of the vehicle chassis frame, and the steering gear fixing frame is rotatably connected to the steering drive shaft; Among them, the vehicle chassis frame is also provided with a fourth chassis through-hole and a fifth chassis through-hole, and the fourth chassis through-hole is adapted to the steering on-off piece; the fourth steering through-hole and the fifth chassis through-hole are located on the same straight line, and the inner diameter of the fifth chassis through-hole is larger than the outer diameter of the steering drive shaft.

Images