A direct-drive wire-controlled steering wheel based on magnetic gear technology

Abstract

The present invention relates to the technical field of steering wheel control mechanisms, and in particular to a direct-drive wire-controlled steering wheel based on magnetic gear technology, comprising a mounting seat, a connecting shaft rotatingly passing through the inner side of the mounting seat, a steering wheel fixedly connected to the rear end of the connecting shaft, a connecting cylinder fixedly mounted on the front end of the mounting seat, a plurality of limit keys arranged in a circular array fixedly connected to the outer surface of the connecting shaft, an assembly set sleeved on the outer surface of the connecting shaft through a positioning mechanism, a plurality of card slots arranged in a circular array are provided on the inner wall of the assembly set, the limit key is slidably inserted into the inner side of the card slot, a guide plate is provided on the outer surface of the limit key, and the front end of the guide plate is rotatably connected to the outer surface of the limit key. In the present invention, the magnetic resistance force position does not require mechanical contact, so it has the characteristics of low noise, low wear and long life, has a good heat dissipation effect, prevents overheating and malfunctions during long-term use, and is convenient for maintenance and assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of steering wheel control mechanisms, and in particular to a direct-drive wire-controlled steering wheel based on magnetic gear technology. Background Art

[0002] The direct-drive wire-controlled steering wheel with magnetic gears mainly uses the magnetic coupling of magnetic gears and the precise control of the electronic control system to achieve the steering function. The magnetic gear is a device that uses magnetic fields to transmit torque, and has the characteristics of non-contact, low friction and high efficiency. In the direct-drive wire-controlled steering system, the magnetic gear is used as a key component to transmit steering torque, and the rotation of the steering wheel is converted into the steering of the wheels through magnetic coupling. The magnetic resistance can be flexibly adjusted to provide assistance or resistance for the steering of the steering wheel.

[0003] Since the coil in the stator has resistance when the steering wheel is rotating, resistance loss will be generated when current passes through. This part of the lost energy will be converted into heat energy, causing the stator and rotor to heat up more seriously. When used for a long time, it is easy to cause failure problems. In addition, due to the complex structure of the rotating shaft and magnetic resistance structure, the existing direct-drive wire-controlled steering wheel with magnetic gear is more inconvenient to assemble and maintain. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a direct-drive wire-controlled steering wheel based on magnetic gear technology.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a direct-drive wire-controlled steering wheel based on magnetic gear technology, comprising a mounting seat, a connecting shaft rotatingly passing through the inner side of the mounting seat, a rear end of the connecting shaft fixedly connected to the steering wheel, a connecting cylinder fixedly installed at the front end of the mounting seat, an outer surface of the connecting shaft fixedly connected to a plurality of limit keys arranged in a circular array, an outer surface of the connecting shaft is provided with an assembly sleeve through a positioning mechanism, an inner wall of the assembly sleeve is provided with a plurality of card slots arranged in a circular array, the limit key is slidably inserted into the inner side of the card slot, a guide plate is provided on the outer surface of the limit key, the front end of the guide plate is rotatably connected to the outer surface of the limit key, and the guide plate is located on the inner side of the card slot, a heat conductor is embedded on the outer surface of the connecting sleeve and near the rear of the assembly sleeve, a rotor is fixedly provided on the outer surface of the assembly sleeve, a stator is fixedly provided on the inner wall of the connecting sleeve, and the stator is sleeved on the outer side of the rotor.

[0006] Preferably, the positioning mechanism includes a positioning ring fixedly arranged on the outer surface of the connecting shaft, and the positioning ring is located at the rear end of the limit key, and sockets are respectively provided on the outer surface of the connecting shaft and on both sides close to each limit key, and a limit block is slidably inserted into the inner side of the socket, and an inclined surface is provided on the front side of the limit block. An elastic mechanism connected to the end of the limit block is provided on the inner side of the connecting shaft, and the assembly set is located between the positioning ring and the limit block.

[0007] Preferably, the elastic mechanism includes a fixed frame fixedly installed on the inner wall of the connecting shaft, a bottom connecting plate is fixedly connected between the two limit blocks on both sides of each limit key, a T-shaped column slides through the outer surface of the bottom connecting plate, one end of the T-shaped column is fixedly connected to the outer surface of the fixed frame, a compression spring is sleeved on the outer surface of the T-shaped column, and the compression spring is located between the bottom connecting plate and the fixed frame.

[0008] Preferably, a fan-shaped block is provided at the front end of the guide plate, a sleeve hole is provided on the inner side of the fan-shaped block, a countersunk groove is provided on the end of the sleeve hole away from the limit key, a fan-shaped groove is provided at the rear ends of the sleeve hole and the countersunk groove, a T-shaped rotating shaft passes through the inner sides of the sleeve hole and the countersunk groove for rotating together, a swing plate is fixedly connected to the rear surface of the T-shaped rotating shaft, and the swing plate is inserted into the inner side of the fan-shaped groove.

[0009] Preferably, the heat conducting member comprises a plurality of T-shaped heat conducting plates fixedly embedded on the outer surface of the connecting tube, and the T-shaped heat conducting plates are arranged in a ring array.

[0010] Preferably, the outer surface of the mounting seat is provided with a plurality of docking grooves, the outer surface rear end of the connecting tube is fixedly connected with a plurality of docking blocks, the docking blocks are slidably inserted into the inner side of the docking grooves, the outer surface of the docking blocks is slidably penetrated with docking bolts, the end portions of the docking bolts are threadedly inserted into the inner surface of the docking grooves, and a mounting plate is fixedly installed on the side of the mounting seat away from the docking grooves.

[0011] Preferably, two reinforcement plates are fixedly connected to the inner wall of the connecting tube, the stator is located between the two reinforcement plates, a plurality of spacers are fixedly connected between the two reinforcement plates and near the edge, the spacers are located between the rotor and the stator, and a distribution box is fixedly embedded on the outer surface of the connecting tube, and the distribution box is rotatably connected to the stator.

[0012] Preferably, a protective cover is fixedly connected to the front surface of the steering wheel, and the connecting shaft and the mounting seat are rotatably connected via a connecting bearing.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the electrically controlled magnetic resistance of the rotor and the stator can damp or assist the rotation of the connecting shaft without mechanical contact at the position of the magnetic resistance force, so it has the characteristics of low noise, low wear and long life.

[0015] 2. In the present invention, when the steering wheel is rotated, the connecting shaft and the assembly set rotate synchronously. Due to the effect of inertia, the rear end of each guide plate swings relatively. The guide plate rotates with the T-shaped shaft as the axis. Since the guide plate is inclined, as the connecting shaft rotates, the inclined guide plate will guide the airflow, so that the airflow flows backward through the inner side of the slot, thereby transporting the heat near the rotor and the stator backward. The heat in the hot air flow is absorbed and guided by the T-shaped heat conductive sheet and dissipated from the surface of the T-shaped heat conductive sheet located on the outside, which has a good heat dissipation effect and prevents overheating and malfunction during long-term use.

[0016] 3. During assembly of the present invention, the assembly sleeve is first moved backward along the surface of the connecting shaft. When the assembly sleeve contacts the inclined surface, the limit block will be pushed to move toward the inner side of the socket, thereby not interfering with the backward movement of the assembly sleeve. At the same time, it is necessary to pay attention to aligning the limit key with the inner side of the slot for insertion. When the assembly sleeve moves backward until the rear end of the assembly sleeve contacts the positioning ring, the elastic force of the compression spring causes the bottom connecting plate to move and reset, thereby resetting the limit block, thereby ensuring the stability of the assembly sleeve. After that, the connecting tube is installed, the docking block is inserted into the inner side of the docking slot, and the docking bolts are screwed on to complete the assembly. The overall assembly is convenient, which is beneficial to assembly production and later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a direct-drive wire-controlled steering wheel based on magnetic gear technology of the present invention;

[0018] Figure 2 A partial cross-sectional view of a direct-drive wire-controlled steering wheel based on magnetic gear technology of the present invention;

[0019] Figure 3 The invention provides a direct-drive wire-controlled steering wheel based on magnetic gear technology. Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the connecting shaft of a direct-drive wire-controlled steering wheel based on magnetic gear technology of the present invention;

[0021] Figure 5 It is a cross-sectional view of an assembly part of a direct-drive wire-controlled steering wheel based on magnetic gear technology of the present invention;

[0022] Figure 6 The invention provides a direct-drive wire-controlled steering wheel based on magnetic gear technology. Figure 5 Enlarged view of point B in the middle;

[0023] Figure 7 It is a cross-sectional view of a guide plate of a direct-drive wire-controlled steering wheel based on magnetic gear technology of the present invention;

[0024] Figure 8It is a schematic diagram of an elastic mechanism of a direct-drive wire-controlled steering wheel based on magnetic gear technology of the present invention;

[0025] Fig. 9 The invention provides a direct-drive wire-controlled steering wheel based on magnetic gear technology. Figure 8 Enlarged view of point C in the middle.

[0026] 1. Mounting seat; 2. Connecting tube; 3. Docking groove; 4. Docking block; 5. Docking bolt; 6. Connecting shaft; 7. Assembly set; 8. Slot; 9. Limit key; 10. Guide plate; 11. Fan-shaped block; 12. Hole; 13. Fan-shaped groove; 14. Countersunk groove; 15. T-shaped shaft; 16. Swing plate; 17. Limit block; 18. Inclined surface; 19. Socket; 20. Fixed frame; 21. Bottom plate; 22. T-shaped column; 23. Compression spring; 24. Positioning ring; 25. Rotor; 26. Stator; 27. Spacer; 28. Reinforcement plate; 29. ​​Distribution box; 30. Mounting plate; 31. Steering wheel; 32. Protective cover; 33. T-shaped heat conductive sheet; 34. Connecting bearing. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0028] like Figure 1-Figure 9 A direct-drive wire-controlled steering wheel based on magnetic gear technology is shown, comprising a mounting seat 1, a connecting shaft 6 is rotatably passed through the inner side of the mounting seat 1, a steering wheel 31 is fixedly connected to the rear end of the connecting shaft 6, a connecting cylinder 2 is fixedly mounted on the front end of the mounting seat 1, a plurality of limit keys 9 arranged in a circular array are fixedly connected to the outer surface of the connecting shaft 6, an assembly sleeve 7 is sleeved on the outer surface of the connecting shaft 6 through a positioning mechanism, a plurality of card slots 8 arranged in a circular array are opened on the inner wall of the assembly sleeve 7, the limit key 9 is slidably inserted into the inner side of the card slot 8, a guide plate 10 is provided on the outer surface of the limit key 9, the front end of the guide plate 10 is rotatably connected to the outer surface of the limit key 9, and the guide plate 10 is located on the inner side of the card slot 8, a heat-conducting member is embedded on the outer surface of the connecting cylinder 2 and near the rear of the assembly sleeve 7, a rotor 25 is fixedly sleeved on the outer surface of the assembly sleeve 7, a stator 26 is fixedly provided on the inner wall of the connecting cylinder 2, and the stator 26 is sleeved on the outer side of the rotor 25.

[0029] The stator 26 is mainly composed of an iron core and a winding, and is used to generate a rotating magnetic field. The rotor 25 is composed of an iron core and salient poles, and is used to be cut by magnetic lines of force in the rotating magnetic field. The stator 26 and the rotor 25 have a "tooth-like" structure in their appearance, and these "teeth" are arranged alternately with slots to accommodate windings or permanent magnets. These "teeth" play a role in transmitting and concentrating magnetic flux in the magnetic field, similar to the role of gears in transmitting torque in mechanical transmission, and are therefore called "magnetic teeth".

[0030] The positioning mechanism includes a positioning ring 24 fixedly arranged on the outer surface of the connecting shaft 6, and the positioning ring 24 is located at the rear end of the limit key 9. The outer surface of the connecting shaft 6 and the two sides close to each limit key 9 are respectively provided with a socket 19, and the inner side of the socket 19 is slidably inserted with a limit block 17, and the front side of the limit block 17 is provided with an inclined surface 18. The inner side of the connecting shaft 6 is provided with an elastic mechanism connected to the end of the limit block 17, and the assembly sleeve 7 is located between the positioning ring 24 and the limit block 17. Under the action of the positioning ring 24, the limit block 17 and the limit key 9, it is ensured that the assembly sleeve 7 can rotate synchronously with the connecting shaft 6.

[0031] The elastic mechanism includes a fixed frame 20 fixedly mounted on the inner wall of the connecting shaft 6, a bottom plate 21 is fixedly connected between the two limit blocks 17 on both sides of each limit key 9, a T-shaped column 22 is slidably penetrated through the outer surface of the bottom plate 21, one end of the T-shaped column 22 is fixedly connected to the outer surface of the fixed frame 20, and a compression spring 23 is sleeved on the outer surface of the T-shaped column 22, and the compression spring 23 is located between the bottom plate 21 and the fixed frame 20. The compression spring 23 provides elastic force to ensure that the limit block 17 can extend out of the port of the socket 19, and the T-shaped column 22 plays a limiting role to prevent the bottom plate 21 from moving up excessively and disengaging.

[0032] The front end of the guide plate 10 is provided with a sector block 11, a sleeve hole 12 is provided on the inner side of the sector block 11, a countersunk groove 14 is provided on the end of the sleeve hole 12 away from the limit key 9, a sector groove 13 is provided at the rear ends of the sleeve hole 12 and the countersunk groove 14, a T-shaped shaft 15 is passed through the inner side of the sleeve hole 12 and the countersunk groove 14 for common rotation, a swing plate 16 is fixedly connected to the rear surface of the T-shaped shaft 15, and the swing plate 16 is inserted into the inner side of the sector groove 13. When the guide plate 10 rotates with the T-shaped shaft 15 as the axis, the swing plate 16 will rotate relatively along the inner side of the sector groove 13, and this part of the design can play a role in limiting the rotation range of the guide plate 10.

[0033] The heat conducting member includes a plurality of T-shaped heat conducting sheets 33 fixedly embedded on the outer surface of the connecting tube 2, and the T-shaped heat conducting sheets 33 are arranged in a ring array. The T-shaped heat conducting sheets 33 are made of copper material and have good heat conducting performance.

[0034] The outer surface of the mounting seat 1 is provided with a plurality of docking grooves 3, and the rear end of the outer surface of the connecting tube 2 is fixedly connected with a plurality of docking blocks 4, which are slidably inserted into the inner side of the docking grooves 3, and the outer surface of the docking block 4 is slidably penetrated with docking bolts 5, and the ends of the docking bolts 5 are threadedly inserted into the inner surface of the docking grooves 3, and a mounting plate 30 is fixedly installed on the side of the mounting seat 1 away from the docking grooves 3, so as to facilitate the assembly between the mounting seat 1 and the connecting tube 2.

[0035] Two reinforcing plates 28 are fixedly connected to the inner wall of the connecting tube 2, the stator 26 is located between the two reinforcing plates 28, a number of spacers 27 are fixedly connected between the two reinforcing plates 28 and near the edge, the spacers 27 are located between the rotor 25 and the stator 26, and a distribution box 29 is fixedly embedded on the outer surface of the connecting tube 2, and the distribution box 29 is rotatably connected to the stator 26. The distribution box 29 facilitates external wiring to supply power to the stator 26, thereby changing the magnetic resistance.

[0036] A protective cover 32 is fixedly connected to the front surface of the steering wheel 31, and the connecting shaft 6 is rotatably connected to the mounting seat 1 via a connecting bearing 34. This is a common rotatable connection method and will not be described in detail.

[0037] In the present invention, through the electrically controlled magnetic resistance of the rotor 25 and the stator 26, the magnetic resistance force position does not need mechanical contact when damping or assisting the rotation of the connecting shaft 6, so it has the characteristics of low noise, low wear and long life.

[0038] When the steering wheel 31 rotates, the connecting shaft 6 and the assembly set 7 rotate synchronously. Due to the effect of inertia, the rear end of each guide plate 10 swings relative to each other. The guide plate 10 rotates with the T-shaped rotating shaft 15 as the axis. Since the guide plate 10 is tilted, as the connecting shaft 6 rotates, the tilted guide plate 10 will guide the airflow, so that the airflow flows backward through the inner side of the slot 8, thereby transporting the heat near the rotor 25 and the stator 26 backward. The heat in the hot air flow is absorbed and guided by the T-shaped heat conductive sheet 33, and dissipated from the external surface of the T-shaped heat conductive sheet 33, which has a good heat dissipation effect and prevents overheating and malfunction during long-term use.

[0039] During assembly, first move the assembly sleeve 7 backward along the surface of the connecting shaft 6. When the assembly sleeve 7 contacts the inclined surface 18, it will push the limit block 17 to move toward the inner side of the socket 19, and thus will not interfere with the backward movement of the assembly sleeve 7. At the same time, it is necessary to pay attention to align the limit key 9 with the inner side of the slot 8 for insertion. When the assembly sleeve 7 moves backward until the rear end of the assembly sleeve 7 contacts the positioning ring 24, the elastic force of the compression spring 23 causes the bottom plate 21 to move and reset, thereby resetting the limit block 17 to ensure the stability of the assembly sleeve 7. After that, install the connecting tube 2, insert the docking block 4 into the inner side of the docking groove 3, and screw on the docking bolt 5 to complete the assembly. The overall assembly is convenient, which is conducive to assembly production and later maintenance.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A direct-drive, wire-controlled steering wheel based on magnetic gear technology, comprising a mounting seat (1), characterized in that: A connecting shaft (6) is rotatably passed through the inner side of the mounting seat (1), a rear end of the connecting shaft (6) is fixedly connected to a steering wheel (31), a connecting tube (2) is fixedly mounted on the front end of the mounting seat (1), a plurality of limit keys (9) arranged in a circular array are fixedly connected to the outer surface of the connecting shaft (6), an assembly sleeve (7) is sleeved on the outer surface of the connecting shaft (6) through a positioning mechanism, a plurality of slots (8) arranged in a circular array are formed on the inner wall of the assembly sleeve (7), and the limit keys (9) are slidably inserted into the slots (8) ), the outer surface of the limit key (9) is provided with a guide plate (10), the front end of the guide plate (10) is rotatably connected to the outer surface of the limit key (9), and the guide plate (10) is located on the inner side of the slot (8), the outer surface of the connecting tube (2) and the rear of the assembly sleeve (7) are embedded with a heat conducting member, the outer surface of the assembly sleeve (7) is fixedly sleeved with a rotor (25), the inner wall of the connecting tube (2) is fixedly provided with a stator (26), and the stator (26) is sleeved on the outer side of the rotor (25).

2. The direct-drive, wire-controlled steering wheel based on magnetic gear technology according to claim 1, characterized in that: The positioning mechanism comprises a positioning ring (24) fixedly arranged on the outer surface of the connecting shaft (6), and the positioning ring (24) is located at the rear end of the limit key (9). The outer surface of the connecting shaft (6) and the two sides close to each limit key (9) are respectively provided with a socket (19), the inner side of the socket (19) is slidably inserted with a limit block (17), the front side of the limit block (17) is provided with an inclined surface (18), the inner side of the connecting shaft (6) is provided with an elastic mechanism connected to the end of the limit block (17), and the assembly sleeve (7) is located between the positioning ring (24) and the limit block (17).

3. The direct-drive wire-controlled steering wheel based on magnetic gear technology according to claim 2, characterized in that: The elastic mechanism comprises a fixed frame (20) fixedly mounted on the inner wall of the connecting shaft (6); a bottom connecting plate (21) is fixedly connected between two limit blocks (17) on both sides of each limit key (9); a T-shaped column (22) is slidably penetrated through the outer surface of the bottom connecting plate (21); one end of the T-shaped column (22) is fixedly connected to the outer surface of the fixed frame (20); a compression spring (23) is sleeved on the outer surface of the T-shaped column (22); and the compression spring (23) is located between the bottom connecting plate (21) and the fixed frame (20).

4. The direct-drive, wire-controlled steering wheel based on magnetic gear technology according to claim 1, characterized in that: A fan-shaped block (11) is provided at the front end of the guide plate (10), a sleeve hole (12) is provided on the inner side of the fan-shaped block (11), a countersunk groove (14) is provided on the end of the sleeve hole (12) away from the limit key (9), a fan-shaped groove (13) is provided at the rear ends of the sleeve hole (12) and the countersunk groove (14), a T-shaped rotating shaft (15) is passed through the inner sides of the sleeve hole (12) and the countersunk groove (14) for co-rotation, a swing plate (16) is fixedly connected to the rear surface of the T-shaped rotating shaft (15), and the swing plate (16) is snapped into the inner side of the fan-shaped groove (13).

5. The direct-drive, wire-controlled steering wheel based on magnetic gear technology according to claim 1, characterized in that: The heat conducting member comprises a plurality of T-shaped heat conducting sheets (33) fixedly embedded on the outer surface of the connecting tube (2), wherein the T-shaped heat conducting sheets (33) are arranged in a ring array.

6. The direct-drive, wire-controlled steering wheel based on magnetic gear technology according to claim 1, characterized in that: The outer surface of the mounting seat (1) is provided with a plurality of docking grooves (3), the outer surface rear end of the connecting tube (2) is fixedly connected with a plurality of docking blocks (4), the docking blocks (4) are slidably inserted into the inner side of the docking grooves (3), the outer surface of the docking blocks (4) is slidably penetrated by docking bolts (5), the ends of the docking bolts (5) are threadedly inserted into the inner surface of the docking grooves (3), and a mounting plate (30) is fixedly mounted on the side of the mounting seat (1) away from the docking grooves (3).

7. The direct-drive, wire-controlled steering wheel based on magnetic gear technology according to claim 1, characterized in that: Two reinforcing plates (28) are fixedly connected to the inner wall of the connecting tube (2), the stator (26) is located between the two reinforcing plates (28), a plurality of spacers (27) are fixedly connected between the two reinforcing plates (28) and close to the edges, the spacers (27) are located between the rotor (25) and the stator (26), and a distribution box (29) is fixedly embedded on the outer surface of the connecting tube (2), the distribution box (29) being rotatably connected to the stator (26).

8. The direct-drive, wire-controlled steering wheel based on magnetic gear technology according to claim 1, characterized in that: A protective cover (32) is fixedly connected to the front surface of the steering wheel (31), and the connecting shaft (6) is rotatably connected to the mounting seat (1) via a connecting bearing (34).

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