Novel power-assisted steering device for high-power special vehicle

Abstract

The utility model discloses a novel high-power special vehicle power-assisted steering device which comprises a rotating shaft, a mechanical steering structure and a power motor, a power-assisted steering section is formed on the surface of the rotating shaft, the novel high-power special vehicle power-assisted steering device further comprises an installation box, a power-assisted steering part and a speed reducer are arranged on the surface of the installation box, and a hollow rotating shaft is arranged in the power motor. A universal joint is connected in the hollow rotating shaft, the other end of the universal joint is connected with the input end of a speed reducer, the output end of the speed reducer is fixedly connected with a transmission shaft, and one end of the transmission shaft penetrates through the mounting box and is connected with the power-assisted steering part. The power-assisted steering device drives the rotating shaft to move in the axial direction through the power-assisted steering part, the power-assisted steering function is achieved, key assemblies of a steering system can be integrated in the hollow rotating shaft, the number of external connection and parts is reduced, the complexity of the system is reduced, and the reliability and stability of the system are improved; meanwhile, power output by the power motor is used for achieving power-assisted steering, energy waste is reduced, and the energy efficiency of the system is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle power steering systems, and in particular to a novel power steering device for high-power special vehicles. Background Art

[0002] Special vehicles are cars or vehicles with unique designs, performance or functions. These vehicles may have special appearance, innovative technology, extremely high performance, luxury configuration or other distinctive features. Electric Power Steering (EPS) is a system that uses an electric motor to assist the driver in turning the steering wheel, replacing the traditional hydraulic power steering system. The introduction of the EPS system significantly improves the energy efficiency of the car because it consumes energy only when power is needed, which can reduce energy waste compared to a continuously running hydraulic pump. The EPS system mainly consists of several key components: electric motors, sensors, control units and mechanical connections. When the driver turns the steering wheel, the steering torque sensor detects the torque and rotation speed of the steering wheel and sends this data to the electronic control unit (ECU). After analyzing this data, the ECU determines the required amount of assistance and directs the electric motor to provide the corresponding assistance to make steering easier.

[0003] The existing EPS system has a complex structure, and too many electronic control devices increase the overall technical complexity and cost of the car. The complexity of the electronic control unit and sensors means that even a minor fault may cause power failure or abnormal steering response, which may cause serious safety problems during driving. In addition, the EPS system has extremely high reliability requirements. The increase in the number of electronic devices in the EPS system may affect the reliability of the entire vehicle. Compared with traditional mechanical or hydraulic systems, electronic systems are more susceptible to software failures, electronic interference or hardware failures. Electronic components are more sensitive to environmental conditions (such as extreme temperatures, humidity, dust, etc.), which may reduce the overall stability and durability of the system. Utility Model Content

[0004] The purpose of the utility model is to provide a novel high-power special vehicle steering assist device to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A new type of high-power special vehicle steering power device includes a rotating shaft, a mechanical steering structure and a power motor. The surface of the rotating shaft is formed with a power steering section. It also includes an installation box. The surface of the installation box is provided with a power steering component and a reducer. A hollow rotating shaft is provided in the power motor. A universal joint is connected in the hollow rotating shaft. The other end of the universal joint is connected to the input end of the reducer. The output end of the reducer is fixedly connected to a transmission shaft. One end of the transmission shaft passes through the installation box and is connected to the power steering component.

[0007] Preferably, a box cover is fixedly connected to the upper surface of the installation box, and an electronic control unit is fixedly connected to the interior of the installation box.

[0008] Preferably, the power steering component includes a first rocker arm rotatably connected to the lower surface of the mounting box, the first rocker arm is fixedly connected to one end of the transmission shaft, a support rod is fixedly connected to the surface of the mounting box, a second rocker arm is rotatably connected to the inner side of the support rod, one end of the first rocker arm and the second rocker arm are both fixedly connected to a connecting part, and the first rocker arm drives the rotating shaft to move axially through the connecting part.

[0009] Preferably, the connecting portion includes a rotating ring rotatably connected to the surface of the power steering section, a sliding groove is provided on the surface of the rotating ring, and a sliding rod is slidably connected to the inner wall of the sliding groove, a universal ball is fixedly connected to the top of the sliding rod, one end of the first rocker arm and the second rocker arm are both fixedly connected to a connecting block, an installation groove is provided on the inner side of the connecting block, and the universal ball is arranged in the installation groove.

[0010] Preferably, the power steering component includes a transmission part arranged on the lower surface of the mounting box, two broken gears are arranged at the bottom of the transmission part, a support block is fixedly connected to the surface of the power steering section, a rack is fixedly connected to the upper surface of the support block, the rack is located between the two broken gears, and the rack is respectively meshed with the two broken gears.

[0011] Preferably, the transmission part includes a driving gear rotatably connected to the lower surface of the installation box, the lower surface of the installation box is respectively rotatably connected to two driven gears, the driving gear is respectively meshed with the two driven gears, the residual gear is fixedly connected to the lower surface of the driven gear, and the driving gear is fixedly connected to one end of the transmission shaft.

[0012] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0013] In the utility model, a universal joint is placed in the hollow rotating shaft of the power motor rotor, and the universal joint transmits power to the power steering component through a reducer. The power steering component drives the rotating shaft to move axially to realize the function of power steering. The key components of the steering system can be integrated inside the hollow rotating shaft, reducing the number of external connections and components, simplifying the system structure, reducing the system complexity, and improving the reliability and stability of the system. At the same time, the power output of the power motor is used to achieve power steering, reducing energy waste and improving the energy efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 : A three-dimensional structural diagram of the first embodiment of the utility model;

[0016] Figure 2 : A schematic diagram of the three-dimensional structure of the connecting part in the first embodiment of the utility model;

[0017] Figure 3 For: the utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 The utility model is a cross-sectional structural diagram of the installation box and the box cover;

[0019] Figure 5 The following is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model;

[0020] Figure 6 The three-dimensional structure diagram of the transmission part in the second embodiment of the utility model is as follows;

[0021] Figure 7 : A three-dimensional structural diagram of the power motor of the utility model.

[0022] In the figure: 1. rotating shaft; 2. mechanical steering structure; 3. power steering section; 4. mounting box; 5. power motor; 6. transmission shaft; 7. box cover; 8. electronic control unit; 9. first rocker; 10. support rod; 11. second rocker; 12. rotating ring; 13. slide rod; 14. universal ball; 15. connecting block; 16. residual gear; 17. support block; 18. rack; 19. driving gear; 20. driven gear; 21. reducer; 22. hollow shaft; 23. universal joint. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0024] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-7 The utility model provides a new type of high-power special vehicle steering assist device, which is used for special vehicle steering assist, has high reliability and stability, and saves energy. Technical solution:

[0026] A novel high-power special vehicle power steering device comprises a rotating shaft 1, a mechanical steering structure 2 and a power motor 5. A power steering section 3 is formed on the surface of the rotating shaft 1. The rotating shaft 1 also comprises an installation box 4. A power steering component and a reducer 21 are arranged on the surface of the installation box 4. A hollow rotating shaft 22 is arranged on the rotor in the power motor 5. A universal joint 23 is connected inside the hollow rotating shaft 22. The other end of the universal joint 23 is connected to the input end of the reducer 21. The output end of the reducer 21 is fixedly connected to a transmission shaft 6. One end of the transmission shaft 6 passes through the installation box 4 and is connected to the power steering component.

[0027] A box cover 7 is fixedly connected to the upper surface of the installation box 4 , and an electronic control unit 8 is fixedly connected to the interior of the installation box 4 .

[0028] Specifically, by placing a universal joint 23 in the hollow shaft 22 of the rotor of the power motor 5, the universal joint 23 transmits power to the power steering component through the reducer 21, and the power steering component drives the rotating shaft 1 to move axially to realize the function of power steering. The key components of the steering system can be integrated inside the hollow shaft 22, reducing the number of external connections and components, simplifying the system structure, reducing the system complexity, and improving the reliability and stability of the system. At the same time, the power output of the power motor 5 is used to achieve power steering, reducing energy waste and improving the energy efficiency of the system.

[0029] Embodiment 1

[0030] The power steering component includes a first rocker arm 9 rotatably connected to the lower surface of the mounting box 4, the first rocker arm 9 is fixedly connected to one end of the transmission shaft 6, a support rod 10 is fixedly connected to the surface of the mounting box 4, a second rocker arm 11 is rotatably connected to the inner side of the support rod 10, one end of the first rocker arm 9 and the second rocker arm 11 are fixedly connected to a connecting portion, and the first rocker arm 9 drives the rotating shaft 1 to move axially through the connecting portion.

[0031] The connecting part includes a rotating ring 12 rotatably connected to the surface of the power steering section 3, a sliding groove is provided on the surface of the rotating ring 12, and a sliding rod 13 is slidably connected to the inner wall of the sliding groove, and a universal ball 14 is fixedly connected to the top of the sliding rod 13, and one end of the first rocker arm 9 and the second rocker arm 11 are fixedly connected to a connecting block 15, an installation groove is provided on the inner side of the connecting block 15, and the universal ball 14 is arranged in the installation groove.

[0032] Specifically, the transmission shaft 6 drives the first rocker 9 to rotate, thereby driving the slide bar 13 to move, thereby driving the rotating ring 12 to rotate and move axially along the rotating shaft 1, thereby driving the rotating shaft 1 to move along the axis. By setting the second rocker 11, the stability of the system is improved.

[0033] Embodiment 2

[0034] The power steering component includes a transmission part arranged on the lower surface of the mounting box 4, two broken gears 16 are arranged at the bottom of the transmission part, a support block 17 is fixedly connected to the surface of the power steering section 3, a rack 18 is fixedly connected to the upper surface of the support block 17, the rack 18 is located between the two broken gears 16, and the rack 18 is respectively meshed with the two broken gears 16.

[0035] The transmission part includes a driving gear 19 rotatably connected to the lower surface of the installation box 4, and the lower surface of the installation box 4 is respectively rotatably connected to two driven gears 20, the driving gear 19 is respectively meshed with the two driven gears 20, the residual gear 16 is fixedly connected to the lower surface of the driven gear 20, and the driving gear 19 is fixedly connected to one end of the transmission shaft 6.

[0036] Specifically, the driving gear 19 is driven to rotate through the transmission shaft 6, which in turn drives the two driven gears 20 to rotate in the same direction, and then drives the two residual gears 16 to rotate in the same direction. The two residual gears 16 are alternately engaged with the rack 18, which can drive the rack 18 to move, and then drive the rotating shaft 1 to move axially through the support block 17.

[0037] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0038] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A novel high-power special vehicle power steering device, comprising a rotating shaft (1), a mechanical steering structure (2) and a power motor (5), wherein a power steering section (3) is formed on the surface of the rotating shaft (1), and characterized in that: It also comprises an installation box (4), the surface of which is provided with a power steering component and a reducer (21), a hollow rotating shaft (22) is provided on the rotor in the power motor (5), a universal joint (23) is connected inside the hollow rotating shaft (22), the other end of the universal joint (23) is connected to the input end of the reducer (21), the output end of the reducer (21) is fixedly connected to a transmission shaft (6), one end of the transmission shaft (6) passes through the installation box (4) and is connected to the power steering component.

2. A new type of high-power special vehicle steering assist device according to claim 1, characterized in that: A box cover (7) is fixedly connected to the upper surface of the installation box (4), and an electronic control unit (8) is fixedly connected to the interior of the installation box (4).

3. A new type of high-power special vehicle steering assist device according to claim 1, characterized in that: The power steering component comprises a first rocker arm (9) rotatably connected to the lower surface of the mounting box (4), the first rocker arm (9) being fixedly connected to one end of the transmission shaft (6), a support rod (10) being fixedly connected to the surface of the mounting box (4), a second rocker arm (11) being rotatably connected to the inner side of the support rod (10), one end of each of the first rocker arm (9) and the second rocker arm (11) being fixedly connected to a connecting portion, and the first rocker arm (9) drives the rotating shaft (1) to move axially via the connecting portion.

4. A new type of high-power special vehicle steering assist device according to claim 3, characterized in that: The connecting portion comprises a rotating ring (12) rotatably connected to the surface of the power steering section (3); a sliding groove is provided on the surface of the rotating ring (12); a sliding rod (13) is slidably connected to the inner wall of the sliding groove; a universal ball (14) is fixedly connected to the top of the sliding rod (13); one end of each of the first rocker (9) and the second rocker (11) is fixedly connected to a connecting block (15); a mounting groove is provided on the inner side of the connecting block (15); and the universal ball (14) is arranged in the mounting groove.

5. A new type of high-power special vehicle steering assist device according to claim 1, characterized in that: The power steering component comprises a transmission part arranged on the lower surface of the mounting box (4), two residual gears (16) are arranged at the bottom of the transmission part, a support block (17) is fixedly connected to the surface of the power steering section (3), a rack (18) is fixedly connected to the upper surface of the support block (17), the rack (18) is located between the two residual gears (16), and the rack (18) is respectively meshed with the two residual gears (16).

6. A new type of high-power special vehicle steering assist device according to claim 5, characterized in that: The transmission part comprises a driving gear (19) rotatably connected to the lower surface of the installation box (4); the lower surface of the installation box (4) is respectively rotatably connected to two driven gears (20); the driving gear (19) is respectively meshed with the two driven gears (20); the residual gear (16) is fixedly connected to the lower surface of the driven gear (20); and the driving gear (19) is fixedly connected to one end of the transmission shaft (6).

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