Automobile steering system

Abstract

The invention discloses an automobile steering system, and relates to the technical field of automobile steering equipment, the automobile steering system comprises an upper pipe pile and a lower pipe pile, a first rotating shaft is arranged in the upper pipe pile, a second rotating shaft is arranged in the lower pipe pile, a first gear is arranged on the first rotating shaft, a second gear is arranged on the second rotating shaft, the first gear is meshed with the second gear, and the first gear is meshed with the second gear. A steering seat is arranged on the second rotating shaft, a connecting rod is arranged on the steering seat, and a mounting seat connected with a wheel is arranged on the connecting rod. Connection work of the first rotating shaft and the second rotating shaft in the upper pipe pile and the lower pipe pile is achieved through meshing of the first gear and the second gear, so that convenient steering adjustment of wheels is achieved, and the whole steering adjustment system is simple in structure, low in manufacturing cost, smaller in-vehicle space and higher in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of automobile steering equipment, and in particular to an automobile steering system. Background Art

[0002] A common automobile steering transmission mechanism is designed as a rack-and-pinion steering device. In the rack-and-pinion steering device, the end of the steering column is connected to the pinion, and the steering rod is displaced laterally when the steering device is turned. The rack-and-pinion steering device has good feedback and very good reset performance.

[0003] For example, the announcement number CN107054444A disclosed a steering gear and automobile steering system on August 18, 2017, which belongs to the field of vehicle technology. The steering gear includes a steering gear, a steering rack, a housing and a preload adjustment mechanism; the steering gear is supported in the housing by a bearing; the steering rack is arranged in the housing through a slide rail; the steering gear is sleeved on the circumference of the steering shaft, and the steering gear is meshed with the steering rack; the preload adjustment mechanism is arranged in the housing and presses the steering rack. The above-mentioned gear rack constitutes a steering system, which has a complex structure, occupies a large space in the vehicle, has a high manufacturing cost, and is of poor practicality. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle steering system with a simple structure and low manufacturing cost. The present invention realizes the rotation of the upper pipe pile to drive the rotation of the lower pipe pile through the mutual cooperation of the first gear and the second gear, thereby realizing the steering work of the steering seat driving the wheel. The whole steering system has a simple structure, low manufacturing cost and higher practicality.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve its technical problem is: an automobile steering system, including an upper pipe pile and a lower pipe pile, a first rotating shaft is provided in the upper pipe pile, a second rotating shaft is provided in the lower pipe pile, a first gear is provided on the first rotating shaft, a second gear is provided on the second rotating shaft, the first gear and the second gear are meshed, a steering seat is provided on the second rotating shaft, a connecting rod is provided on the steering seat, and a mounting seat connected to the wheel is provided on the connecting rod.

[0006] A first protective seat is disposed outside the first gear, a second protective seat is disposed outside the second gear, and the first protective seat and the second protective seat are connected to each other.

[0007] An outer seat is provided outside the first protection seat and the second protection seat, and rotation grooves for the upper pipe pile and the lower pipe pile to rotate are provided on both sides of the outer seat. An elastic support component for meshing the first gear and the second gear is provided on the outer seat.

[0008] The elastic support assembly comprises an elastic member arranged between the outer seat and the first protective seat, one end of the elastic member abuts against the outer seat, and the other end of the elastic member abuts against the first protective seat.

[0009] One end of the elastic member is provided with a contact block that contacts the first protection seat, and the contact block is provided with a fitting surface that contacts the outer wall of the first protection seat.

[0010] A threaded block is threadedly connected to the outer seat, one end of the threaded block extends into the outer seat, and the end of the threaded block extending into the outer seat abuts against the elastic member.

[0011] The threaded block and the abutment block are both provided with mounting grooves for accommodating the elastic member, and one end of the threaded block extending outside the outer seat is provided with an adjusting groove.

[0012] The cross section of the steering seat is fan-shaped, two ball head seats are symmetrically arranged at the end of the steering seat, and a connecting seat connected to the ball head seat is arranged on the connecting rod.

[0013] The steering seat is provided with a pin hole and a positioning pin.

[0014] The lower pipe pile is provided with a dustproof plate, and the lower pipe pile is provided with a mounting cross seat.

[0015] The beneficial effects of the present invention are:

[0016] The first gear and the second gear are meshed to realize the connection between the first rotating shaft and the second rotating shaft in the upper pipe pile and the lower pipe pile, thereby realizing convenient steering adjustment of the wheel. The entire steering adjustment system has a simple structure, low manufacturing cost, occupies less space in the vehicle, and is more practical.

[0017] A first protective seat, a second protective seat and an outer seat are arranged outside the first gear and the second gear to protect the gears, and an elastic support assembly is arranged inside the outer seat so that the first protective seat faces the second protective seat, so that the first gear is always meshed with the second gear, thereby ensuring a stable connection between the upper pipe pile and the lower pipe pile, thereby ensuring the stable operation of the steering system and increasing the service life of the steering system;

[0018] The position of the threaded block on the outer seat is adjusted, thereby controlling the compression degree of the elastic member, and further controlling the contact pressure between the first gear and the second gear, thereby ensuring stable meshing between the first gear and the second gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the automobile steering system of the present invention.

[0020] Figure 2 for Figure 1 Schematic diagram of part of the structure.

[0021] Figure 3 for Figure 1 Schematic diagram of the connecting rod, connecting seat, ball head seat and mounting seat structure.

[0022] Figure 4 for Figure 1 Schematic diagram of the connection structure of the upper pipe pile, the lower pipe pile, the first gear and the second gear.

[0023] Figure 5 for Figure 1 Schematic diagram of the lower pipe pile and steering seat structure.

[0024] Figure 6 for Figure 1 Schematic diagram of the internal structure of the outer seat.

[0025] In the accompanying drawings: 1-upper pipe pile, 101-first rotating shaft, 2-lower pipe pile, 201-second rotating shaft, 3-first gear, 4-second gear, 5-steering seat, 6-connecting rod, 7-mounting seat, 8-first protective seat, 9-second protective seat, 10-outer seat, 11-abutment block, 12-abutment surface, 13-threaded block, 14-mounting groove, 15-adjusting groove, 16-ball head seat, 17-connecting seat, 18-pin hole, 19-locating pin, 20-dustproof disc, 21-spring, 22-rotation groove, 23-mounting cross seat. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] like Figure 1-6As shown, the automobile steering system comprises an upper pipe pile 1 and a lower pipe pile 2, both of which are fixed in the vehicle, wherein a first rotating shaft 101 is arranged in the upper pipe pile 1, and a second rotating shaft 201 is arranged in the lower pipe pile 2, a bearing connected to the first rotating shaft 101 is arranged in the upper pipe pile 1, and the first rotating shaft 101 is stably rotated in the upper pipe pile 1 through the bearing, and correspondingly, a bearing connected to the second rotating shaft 201 is arranged in the lower pipe pile 2, and the second rotating shaft 201 is stably rotated in the lower pipe pile 2 through the bearing, specifically, one end of the first rotating shaft 101 is connected to the steering wheel of the vehicle through a spline, a first gear 3 is arranged on the first rotating shaft 101, and the first gear 3 is connected to the first rotating shaft 101 through a flat key, and the second rotating shaft 201 is stably rotated in the lower pipe pile 2. A second gear 4 is provided on it, and the second rotating shaft 201 is connected to the second gear 4 through a flat key, the first gear 3 and the second gear 4 are meshed, and a steering seat 5 is provided on the second rotating shaft 201, and a connecting rod 6 is provided on the steering seat 5, and a mounting seat 7 connected to the wheel is provided on the connecting rod 6, and the steering seat 5 is connected to the second rotating shaft 201 through bolts. In this embodiment, two connecting rods 6 are provided, and the two connecting rods 6 are symmetrically arranged on both sides of the steering seat 5, and the mounting seat 7 is a ball head seat and a connecting seat, the ball head seat body is connected to the wheel, and the connecting seat is connected to the connecting rod 6, and in this embodiment, the diameter of the first gear 3 is smaller than the diameter of the second gear 4, thereby reducing the rotation speed transmitted from the upper pipe pile 1 to the lower pipe pile, and increasing the torque, thereby realizing convenient steering.

[0029] When in use, the first rotating shaft 101 is connected to the steering wheel of the car. Turning the steering wheel causes the first rotating shaft 101 to rotate, driving the first gear 3 to rotate. The rotation of the first gear 3 causes the second gear 4 meshing therewith to rotate. The rotation of the second gear 4 causes the second rotating shaft 201 connected thereto to rotate. The rotation of the second rotating shaft 201 causes the steering seat 5 connected thereto to rotate. The rotation of the steering seat 5 drives the connecting rod 6 to move. The movement of the connecting rod 6 drives the mounting seat 7 connected thereto and the vehicle to perform steering adjustment. The meshing of the first gear 3 and the second gear 4 enables convenient steering adjustment of the wheels. The entire steering adjustment system has a simple structure, low manufacturing cost, occupies less space in the vehicle, and is more practical.

[0030] Reference Figure 1-6 A first protective seat 8 is provided outside the first gear 1, and a second protective seat 9 is provided outside the second gear 4. The first protective seat 8 and the second protective seat 9 are connected to each other, and the first gear 3 and the second gear 4 are protected by the first protective seat 8 and the second protective seat 9. Specifically, the first protective seat 8 and the second protective seat 9 are both disc-shaped, so that the protective seats protect the gears while minimizing the footprint of the protective seats in the vehicle. In this embodiment, the first protective seat 8 is connected to the upper pipe pile 1, and the second protective seat 9 is connected to the lower pipe pile 2, so as to ensure the stable rotation of the first rotating shaft 101 and the second rotating shaft 201.

[0031] Specifically, an outer seat 10 is provided outside the first protective seat 8 and the second protective seat 9, and rotating grooves 22 for the upper pipe pile 1 and the lower pipe pile 2 to rotate are provided on both sides of the outer seat 10. An elastic support component is provided on the outer seat 10 to enable the first gear 3 and the second gear 4 to mesh. When the first gear 3 and the second gear 4 are prone to wear after long-term use, at this time, the elastic support component in the outer seat 10 works to make the first protective seat 8 face the second protective seat 9, and then the first gear 3 is always meshed with the second gear 4, thereby ensuring the stable connection between the upper pipe pile 1 and the lower pipe pile 2, thereby ensuring the stable operation of the steering system and increasing the service life of the steering system.

[0032] Specifically, the elastic support assembly includes an elastic member arranged between the outer seat 10 and the first protective seat 8, one end of the elastic member abuts against the outer seat 10, and the other end of the elastic member abuts against the first protective seat 8. The setting of the elastic member ensures that the first gear 3 is always engaged with the second gear 4. In this embodiment, the elastic member is a spring 21, and the stable engagement of the two gears is achieved through the elastic action of the spring.

[0033] One end of the elastic member is provided with an abutting block 11 that abuts against the first protective seat 8, and the abutting block 11 is provided with a fitting surface 12 that fits against the outer wall of the first protective seat 8. Through the action of the abutting block 11, the elastic force of the elastic member can stably squeeze the second protective seat 8. Specifically, the first protective seat 8 is disc-shaped, so that the fitting surface 12 is an arc-shaped surface, and the diameter of the arc-shaped surface is the same as the diameter of the first protective seat 8.

[0034] A threaded block 13 is threadedly connected to the outer seat 9, and one end of the threaded block 13 extends into the outer seat 10. The end of the threaded block 13 extending into the outer seat 10 abuts against the elastic member. The threaded block 13 is rotated to adjust the length of the threaded block 13 extending into the outer seat 10, thereby controlling the compression degree of the elastic member, and then controlling the contact force between the first gear 3 and the second gear 4, thereby ensuring stable meshing between the first gear 3 and the second gear 4. Specifically, a threaded hole matching the threaded seat 13 is provided on the outer seat 10.

[0035] Both the thread block 13 and the abutment block 11 are provided with mounting grooves 14 for accommodating the elastic member, thereby ensuring the stable placement of the elastic member between the thread block 13 and the abutment block 11 and preventing the elastic member from deflecting. An adjustment groove 15 is provided at one end of the thread block 13 extending outside the outer seat 10, and the thread block 13 can be conveniently rotated through the adjustment groove 15. In this embodiment, the adjustment groove 15 is a cross groove, or a handle is welded at the end of the nut block 13, so that the movement of the thread block 13 can be controlled by turning the handle.

[0036] The cross-section of the steering seat 5 is fan-shaped, and two ball head seats 16 are symmetrically provided at the end of the steering seat 5. A connecting seat 17 connected to the ball head seat 16 is provided on the connecting rod 6. One end of the lower pipe pile 2 is installed on one side of the steering seat 5, and the two ball head seats 16 are installed on the other end of the steering seat 5, thereby ensuring that the fan-shaped steering seat 5 rotates stably to drive the ball head seat 16 to rotate, and drive the connecting seat 17 and the connecting rod 6 to move. Specifically, a ball head is provided on the ball head seat 16, and a spherical groove that matches the ball head 16 is provided on the connecting seat 17, thereby realizing a stable connection between the connecting rod 6 and the steering seat 5. Specifically, a through hole for the ball head seat 16 to pass through is provided on the steering seat 5, and the ball head seat 16 is fixed by a nut, and the ball head seat 16 is provided with a thread that cooperates with the nut. In this embodiment, the composition of the mounting seat 7 is the same as the structure of the ball head seat 16 and the connecting seat 17, thereby ensuring that the connecting rod 6 drives the wheel to rotate when the steering seat 5 rotates.

[0037] The steering seat 5 is provided with a pin hole 18 and a positioning pin 19, and the steering seat 5 is positioned when installed in the vehicle through the cooperation of the pin hole 18 and the positioning pin 19. In this embodiment, one positioning pin 19 is provided and two pin holes 18 are provided.

[0038] A dust plate 20 is provided on the lower pipe pile 2, and the dust plate 20 is installed in the lower part of the cab of the vehicle door, so that the steering seat 5 is dustproofed by the dust plate 20. A mounting cross seat 23 is provided on the lower pipe pile 2, and the mounting cross seat 23 is used for the installation of the lower pipe pile 2 in the vehicle. Specifically, the mounting cross seat 23 includes a cross plate welded to the lower pipe pile 2, and side plates are welded on the cross plate. The side plates are connected to the sheet metal inside the vehicle, so as to fix the lower pipe pile 2, thereby ensuring the stable rotation of the second rotating shaft 201.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile steering system, characterized in that: The invention comprises an upper pipe pile (1) and a lower pipe pile (2), wherein a first rotating shaft (101) is arranged in the upper pipe pile (1), and a second rotating shaft (201) is arranged in the lower pipe pile (2), a first gear (3) is arranged on the first rotating shaft (101), a second gear (4) is arranged on the second rotating shaft (201), the first gear (3) and the second gear (4) are meshed, a steering seat (5) is arranged on the second rotating shaft (201), a connecting rod (6) is arranged on the steering seat (5), and a mounting seat (7) connected to a wheel is arranged on the connecting rod (6).

2. The vehicle steering system according to claim 1, characterized in that: A first protective seat (8) is disposed outside the first gear (1), and a second protective seat (9) is disposed outside the second gear (4); the first protective seat (8) and the second protective seat (9) are connected to each other.

3. The vehicle steering system according to claim 2, characterized in that: An outer seat (10) is arranged outside the first protective seat (8) and the second protective seat (9), and rotating grooves (22) for the upper pipe pile (1) and the lower pipe pile (2) to rotate are arranged on both sides of the outer seat (10), and an elastic support component is arranged on the outer seat (10) to enable the first gear (3) and the second gear (4) to mesh.

4. The vehicle steering system according to claim 3, characterized in that: The elastic support assembly comprises an elastic member arranged between the outer seat (10) and the first protective seat (8), one end of the elastic member abuts against the outer seat (10), and the other end of the elastic member abuts against the first protective seat (8).

5. The vehicle steering system according to claim 4, characterized in that: One end of the elastic member is provided with a contact block (11) that contacts the first protective seat (8), and the contact block (11) is provided with a fitting surface (12) that contacts the outer wall of the first protective seat (8).

6. The vehicle steering system according to claim 5, characterized in that: A threaded block (13) is threadedly connected to the outer seat (9), one end of the threaded block (13) extends into the outer seat (10), and the end of the threaded block (13) extending into the outer seat (10) abuts against the elastic member.

7. The vehicle steering system according to claim 6, characterized in that: The threaded block (13) and the abutment block (11) are both provided with a mounting groove (14) for accommodating an elastic member, and an adjustment groove (15) is provided at one end of the threaded block (13) extending outside the outer seat (10).

8. An automobile steering system according to any one of claims 1 to 7, characterized in that: The cross section of the steering seat (5) is fan-shaped, two ball head seats (16) are symmetrically arranged at the end of the steering seat (5), and a connecting seat (17) connected to the ball head seat (16) is arranged on the connecting rod (6).

9. The vehicle steering system according to claim 8, characterized in that: The steering seat (5) is provided with a pin hole (18) and a positioning pin (19).

10. The vehicle steering system according to claim 9, characterized in that: The lower pipe pile (2) is provided with a dustproof plate (20), and the lower pipe pile (2) is provided with a mounting cross seat (23).

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