360-degree steering electric power steering structure

Abstract

The utility model relates to the field of electric steering, and discloses a 360-degree steering electric power steering structure which comprises a fixing frame, a first driving mechanism, trundles and a second driving mechanism, the first driving mechanism is installed on the fixing frame, the trundles are driven by the first driving mechanism to advance, and the second driving mechanism is fixedly connected with the surface fixing frame. The casters are driven by the second driving mechanism to steer by 360 degrees; the automobile steering device has the advantages that steering of the wheels is completed through cooperation of the driving structure and the gears, 360-degree steering of an automobile is achieved while the requirement for movement of the wheels is met, the steering angle is increased, the steering structure is compact and reasonable, and the steering effect is good. The wheels can be more suitable for steering in various narrow spaces, the steering mechanisms are matched easily and quickly, the response speed is high, and steering operation of the vehicle can become simpler.

Description

Technical Field

[0001] This utility model relates to the field of electric steering technology, and in particular to an electric power steering structure with 360° steering. Background Technology

[0002] Electric power steering uses an electric motor to directly provide assistance, serving the driving and steering functions of the driven components. In recent years, electric power steering has developed rapidly, with various models of electric power steering systems constantly emerging and being applied in various fields. Each steering system has its own advantages.

[0003] Chinese Patent CN210011550U discloses an electric steering system. It includes a front fork bogie with casters mounted on it, a positioning connector mounted on a crossbeam of the front fork bogie, and a pivot connector that connects the positioning connector and the front fork bogie together via a crossbeam extending vertically through the positioning connector and the front fork bogie. This system enables steering control of the casters, significantly reducing the difficulty and skill required for steering operations, and laying the foundation for the application of casters or unicycles in intelligent or automated products.

[0004] Based on the above, the inventors believe that the current electric power steering structure still needs to be optimized to enable the vehicle to better adapt to various complex terrains and avoid obstacles and steering. Utility Model Content

[0005] The purpose of this invention is to provide a 360° electric power steering structure that can adapt to complex terrain and flexibly steer and avoid obstacles.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a 360° electric power steering structure, including a fixed frame, a first drive mechanism, casters, and a second drive mechanism;

[0007] The first drive mechanism is mounted on the fixed frame, and the casters are driven to move through the first drive mechanism. The second drive mechanism is fixedly connected to the surface of the fixed frame, and the casters are driven to turn 360° through the second drive mechanism.

[0008] The mounting bracket includes a mounting panel, a fixing post, and a top plate. The top plate is positioned above the mounting panel, and the mounting panel and the top plate are fixed together by the fixing post.

[0009] A further feature of this invention is that the first drive mechanism includes a first motor fixedly mounted on the top plate on the outside and a walking structure connected to the output end of the first motor.

[0010] By adopting the above technical solution, the first motor drives the walking mechanism to operate, enabling the walking mechanism to drive the casters to move.

[0011] A further feature of this invention is that the walking structure includes a first helical gear fixed coaxially with the output shaft of the first motor, and a second helical gear meshing with the outer side of the first helical gear. The second helical gear is connected to a gear set via a synchronous shaft, and the gear set drives the caster to rotate.

[0012] By adopting the above technical solutions, casters can be used for daily movement.

[0013] A further feature of this invention is that the second drive mechanism includes a second motor whose outer side is fixed to the mounting panel, a drive gear fixedly connected to the output shaft of the second motor, a gear ring whose outer side meshes with the drive gear, and a mounting assembly that rotates with the mounting panel, wherein the gear ring is fixed to the mounting assembly.

[0014] By adopting the above technical solution, the gear ring can rotate 360° on the mounting panel via the mounting components.

[0015] A further feature of this invention is that the surface of the mounting panel is provided with a mounting groove, and the bottom surface of the mounting panel is fixed with a fixing ring that is coaxial with the mounting groove.

[0016] By adopting the above technical solution, the mounting groove and the fixing ring provide space for the installation and use of the gear ring and the mounting components.

[0017] A further feature of this invention is that the mounting assembly includes a mounting ring coaxially disposed within the mounting groove, a fixing bolt whose top end is fixed to the mounting ring, and a side plate located below the fixing bolt.

[0018] By adopting the above technical solution, the bottom surface of the mounting ring and the surface of the fixing ring slide in contact.

[0019] A further feature of this invention is that a groove is provided on the side plate, and a mounting block is integrally fixed on the inner side of the gear ring, with the outer side of the mounting block being inserted into the groove.

[0020] By adopting the above technical solution, assembly support is provided for subsequent integrated fixing.

[0021] A further feature of this invention is that the bottom end of the fixing bolt is fixed to the mounting block and the groove sequentially from top to bottom, and the outer wall of the fixing bolt slides in contact with the fixing ring.

[0022] By adopting the above technical solution, the mounting ring, gear ring, and side plate can be kept as a whole and rotate circumferentially on the mounting groove and fixing ring.

[0023] A further feature of this invention is that the outer side of the second helical gear is rotatably connected to the side plate, and the gear set includes a first gear, a second gear, and a third gear rotatably mounted on the side plate. The first gear is coaxially fixed with the second helical gear via a synchronous shaft, and the first gear, the second gear, and the third gear are arranged in a line from top to bottom.

[0024] By adopting the above technical solution, the first gear can rotate synchronously, and after transmission, the third gear can maintain rotation.

[0025] A further feature of this invention is that the caster is coaxially fixed with a rotating shaft, both ends of which are rotatably connected to the side plate, and the outer wall of the rotating shaft is coaxially fixed with the third gear.

[0026] By adopting the above technical solution, when the third gear rotates, it can drive the caster to rotate, so as to complete daily movement.

[0027] The beneficial effects of this utility model are:

[0028] 1. The steering of the wheels is accomplished through the drive structure and gear engagement, which allows the vehicle to turn 360° while the wheels move, thus improving the steering angle range and flexibility.

[0029] 2. The steering structure is compact and reasonable, and the wheels can better adapt to steering in various narrow spaces;

[0030] 3. The steering mechanisms work together simply and quickly, with a fast response speed, making vehicle steering operations much simpler. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of a 360° electric power steering structure provided for an embodiment of this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the fixing frame in an embodiment of this utility model;

[0034] Figure 3 This is a schematic diagram of the walking mechanism in an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the installation component in an embodiment of the present utility model.

[0036] In the diagram, 1. Fixed frame; 2. First drive mechanism; 3. Caster; 4. Second drive mechanism; 11. Mounting panel; 12. Fixed column; 13. Top plate; 14. Mounting groove; 15. Fixing ring; 21. First motor; 22. Walking structure; 221. First helical gear; 222. Second helical gear; 223. Synchronous shaft; 224. First gear; 225. Second gear; 226. Third gear; 31. Rotating shaft; 41. Second motor; 42. Drive gear; 43. Gear ring; 431. Mounting block; 44. Mounting assembly; 441. Mounting ring; 442. Fixing bolt; 443. Side plate; 444. Slot. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0038] This utility model embodiment specifically provides a 360° electric power steering structure, please refer to... Figure 1 It includes a fixed frame 1, a first drive mechanism 2, casters 3, and a second drive mechanism 4.

[0039] The first drive mechanism 2 is mounted on the fixed frame 1, and the caster 3 is driven to move through the first drive mechanism 2. The second drive mechanism 4 is fixedly connected to the surface of the fixed frame 1, and the caster 3 is driven to turn 360° through the second drive mechanism 4 so that the caster 3 can adapt to a variety of turning angles.

[0040] Specifically, please refer to Figure 2 The mounting bracket 1 includes a mounting panel 11, a fixing column 12, and a top plate 13. The top plate 13 is spaced above the mounting panel 11. The mounting panel 11 and the top plate 13 are fixed together by the fixing column 12. The mounting panel 11 and the top plate 13 provide mounting support for the two drive structures and enable external adapter components to be mounted on the steering mechanism via the mounting panel 11 or the top plate 13.

[0041] Furthermore, the first drive mechanism 2 includes a first motor 21 fixedly mounted on the top plate 13 on the outside and a walking structure 22 connected to the output end of the first motor 21. The first motor 21 drives the walking mechanism 22 to run, and the walking mechanism 22 can drive the casters 3 to move.

[0042] Specifically, please refer to Figure 3The walking structure 22 includes a first helical gear 221 that is coaxially fixed with the output shaft of the first motor 21, and a second helical gear 222 that meshes with the outer side of the first helical gear 221. The second helical gear 222 is connected to a gear set through a synchronous shaft 223, and the gear set drives the caster 3 to rotate, so that the caster 3 can complete daily movement.

[0043] Further, please refer to Figure 2 The second drive mechanism 4 includes a second motor 41 fixed to the mounting panel 11 on the outside, a drive gear 42 fixedly connected to the output shaft of the second motor 41, a gear ring 43 meshing with the drive gear 42 on the outside, and a mounting assembly 44 rotatably engaged with the mounting panel 11. The gear ring 43 is fixed to the mounting assembly 44, so that the gear ring 43 can rotate 360° on the mounting panel 11 through the mounting assembly 44 to drive the caster 3 to rotate synchronously.

[0044] Specifically, the mounting panel 11 has a mounting groove 14 on its surface, and a fixing ring 15 that is coaxial with the mounting groove 14 is fixed on the bottom surface of the mounting panel 11. The mounting groove 14 and the fixing ring 15 provide space for the installation and use of the gear ring 43 and the mounting assembly 44, which is beneficial to the stability of use.

[0045] Please refer to Figure 3 and Figure 4 The mounting assembly 44 includes a mounting ring 441 coaxially disposed in the mounting groove 14, a fixing bolt 442 whose top end is fixed to the mounting ring 441, and a side plate 443 located below the fixing bolt 442. The bottom surface of the mounting ring 441 slides in contact with the surface of the fixing ring 15. The side plate 443 is provided in two spaced locations to provide mounting support at both ends of the caster 3.

[0046] During implementation, a groove 444 is provided on the side plate 443, and a mounting block 431 is integrally fixed on the inner side of the gear ring 43. The outer side of the mounting block 431 is inserted into the groove 444, so that the gear ring 43 can be connected to the side plate 443, providing assembly support for subsequent integral fixing.

[0047] The bottom end of the fixing bolt 442 is fixed to the mounting block 431 and the groove 444 from top to bottom, and the outer wall of the fixing bolt 442 slides in contact with the fixing ring 15, so that the mounting ring 441, the toothed ring 43 and the side plate 443 can remain as a whole and rotate circumferentially on the mounting groove 14 and the fixing ring 15, so that the toothed ring 43 and the side plate 443 rotate synchronously.

[0048] With the above technical solution, when the second motor 41 drives the drive gear 42 to rotate, it will cause the gear ring 43 to rotate synchronously, and drive the side plate 443 and the caster 3 inside it to rotate synchronously.

[0049] Further, please refer to Figure 2 and Figure 3 The outer side of the second helical gear 222 is rotatably connected to the side plate 443. The gear set includes a first gear 224, a second gear 225 and a third gear 226 rotatably mounted on the side plate 443. The first gear 224 is coaxially fixed to the second helical gear 222 via a synchronous shaft 223. The first gear 224, the second gear 225 and the third gear 226 are arranged in a line from top to bottom, so that when the first motor 21 drives the second helical gear 222 to rotate, the first gear 224 can rotate synchronously, and after transmission, the third gear 224 can maintain rotation.

[0050] When implementing, please refer to Figure 4 The caster 3 is coaxially fixed with a rotating shaft 31. The two ends of the rotating shaft 31 are rotatably connected to the side plate 443, and the outer wall of the rotating shaft 31 is coaxially fixed with the third gear 226. This allows the caster 3 to rotate when the third gear 224 rotates, so as to complete daily movement. When the two side plates 443 rotate circumferentially, the caster 3 can rotate 360° horizontally.

[0051] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 360° turning electric power steering structure, characterized by: The utility model provides a kind of movable frame, including fixed frame (1), first driving mechanism (2), trundle (3) and second driving mechanism (4); First driving mechanism (2) is installed on fixed frame (1), trundle (3) is driven to travel by first driving mechanism (2), second driving mechanism (4) is fixedly connected with the surface of fixed frame (1), and trundle (3) is driven to turn 360 degrees by second driving mechanism (4); Fixed frame (1) includes installation panel (11), fixed column (12) and top plate (13), top plate (13) is spaced above installation panel (11), and installation panel (11) and top plate (13) are fixed by fixed column (12).

2. A 360° turning electric power steering structure according to claim 1, characterized in that: The first driving mechanism (2) includes a first motor (21) fixedly installed on the top plate (13) and a walking structure (22) connected with the output end of the first motor (21).

3. A 360° turning electric power steering structure according to claim 2, characterized in that: The walking structure (22) includes a first helical gear (221) coaxially fixed with the output shaft of the first motor (21), a second helical gear (222) engaged with the outside of the first helical gear (221), a gear set connected with the second helical gear (222) through a synchronous shaft (223), and the trundle (3) is driven to rotate by the gear set.

4. A 360° turning electric power steering structure according to claim 3, characterized in that: The second driving mechanism (4) includes a second motor (41) fixedly installed on the installation panel (11), a driving gear (42) fixedly connected with the output shaft of the second motor (41), a gear ring (43) engaged with the outside of the driving gear (42), and an installation assembly (44) rotatably connected with the installation panel (11), and the gear ring (43) is fixedly connected with the installation assembly (44).

5. A 360° turning electric power steering structure according to claim 4, characterized in that: The installation panel (11) is provided with an installation groove (14) on the surface, and the bottom surface of the installation panel (11) is fixedly provided with a fixed ring (15) coaxially arranged with the installation groove (14).

6. A 360° turning electric power steering structure according to claim 5, characterized in that: The installation assembly (44) includes an installation ring (441) coaxially arranged in the installation groove (14), a fixed bolt (442) fixedly connected with the top end of the installation ring (441), and a side plate (443) arranged below the fixed bolt (442).

7. A 360° turning electric power steering structure according to claim 6, characterized in that: The side plate (443) is provided with an embedding groove (444), and the installation assembly (44) is provided with an installation block (431) integrally arranged on the inside of the gear ring (43), and the outside of the installation block (431) is inserted into the embedding groove (444).

8. A 360° turning electric power steering structure according to claim 7, characterized by: The bottom end of the fixed bolt (442) is fixedly connected with the installation block (431) and the embedding groove (444) from top to bottom, and the outer wall of the fixed bolt (442) is in sliding contact with the fixed ring (15).

9. A 360° turning electric power steering structure according to claim 8, characterized by: The second helical gear (222) is rotatably connected with the side plate (443), and the gear set includes a first gear (224) rotatably arranged on the side plate (443), a second gear (225), and a third gear (226), the first gear (224) is coaxially fixed with the second helical gear (222) through the synchronous shaft (223), and the first gear (224), the second gear (225), and the third gear (226) are arranged in a line from top to bottom.

10. A 360° turning electric power steering structure according to claim 9, characterized by: The trundle (3) is coaxially fixedly provided with a rotating shaft (31), the rotating shaft (31) is rotatably connected with the side plate (443) at both ends, and the outer wall of the rotating shaft (31) is coaxially fixed with the third gear (226).

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