Automobile steering column

Abstract

The utility model relates to the technical field of steering column, concretely is a kind of automobile steering column, including transmission shaft, the both ends of transmission shaft are all fixedly connected with universal joint, the one end of universal joint is fixedly connected with connecting shaft, the circumferential surface of connecting shaft is fixedly connected with fixed plate, the surface of fixed plate is fixedly connected with sealed cloth, universal joint is located in sealed cloth, one end of sealed cloth is fixedly connected with extension ring, the circumferential surface of transmission shaft is fixedly connected with limit ring, extension ring is slidably sleeved in the outer circumferential surface of limit ring.The utility model, by setting sealed cloth, extension ring and limit ring and the like component, when automobile steering column normal work, sealed cloth will enclose universal joint, avoid the lubricating oil that universal joint surface daub is contaminated by dust, to extend the service life of lubricating oil, reduce the wear and tear of universal joint, avoid the situation that automobile steering column needs to be maintained frequently occurs.

Description

Technical Field

[0001] This utility model relates to the field of steering column technology, and in particular to an automobile steering column. Background Technology

[0002] The steering column is a key transmission component connecting the steering wheel and the steering gear. Through the coordinated work of the upper / lower steering shafts, connecting drive shaft, and universal joint, it precisely transmits the driver's steering intentions, achieving vehicle directional control. Among these components, the universal joint, as a core component adapting to changes in the shaft angle, directly affects the service life and handling safety of the steering column due to the lubrication condition of its internal needle rollers and journals.

[0003] In the prior art, in order to reduce the wear of the universal joint of the car steering column during operation, lipo-based lubricating oil is applied to the surface of the universal joint. However, since the universal joint is in an exposed state, dust in the air can easily mix into the lubricating oil, which shortens the service life of the lubricating oil, affects the lubricating effect of the lubricating oil on the universal joint, and increases the maintenance frequency of the car steering column.

[0004] Therefore, a car steering column is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the universal joint, which is exposed, allowing dust from the air to easily mix into the lubricating oil, thus shortening the service life of the lubricating oil, affecting its lubrication effect on the universal joint, and increasing the maintenance frequency of the automotive steering column. Therefore, this invention proposes an automotive steering column.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automotive steering column, comprising a drive shaft, with universal joints fixedly connected to both ends of the drive shaft, a connecting shaft fixedly connected to one end of each universal joint, a fixing plate fixedly connected to the circumferential surface of the connecting shaft, a sealing cloth fixedly connected to the surface of the fixing plate, the universal joint being located within the sealing cloth, an extension ring fixedly connected to one end of the sealing cloth, a limit ring fixedly connected to the circumferential surface of the drive shaft, the extension ring being slidably sleeved on the outer circumferential surface of the limit ring, a rotating rod rotatably connected within the limit ring, a baffle fixedly connected to one end of the rotating rod, and the baffle being slidably connected to the extension ring.

[0007] The effect achieved by the above components is as follows: by setting components such as sealing cloth, extension ring and limiting ring, when the car steering column is working normally, the sealing cloth will cover the universal joint, preventing the lubricating oil on the surface of the universal joint from being contaminated by dust, thereby extending the service life of the lubricating oil, reducing the wear of the universal joint, and avoiding the need for frequent maintenance of the car steering column.

[0008] Preferably, a torsion spring is fitted around the circumference of the rotating rod, and the two ends of the torsion spring are fixedly connected to a limiting ring and a baffle, respectively.

[0009] The effect achieved by the above components is that the torsion spring will use its own torque to drive the baffle to rotate, so that the baffle will automatically reset.

[0010] Preferably, a rectangular plate is fixedly connected to the circumferential surface of the rotating rod, a rotating frame is rotatably connected to the surface of the limiting ring, the rotating frame is rotatably connected to the transmission shaft, a strip plate is fixedly connected to the inner circumferential surface of the rotating frame, and the strip plate is slidably connected to the rectangular plate.

[0011] The effect achieved by the above components is as follows: when the rotating frame is rotated, the strip plate inside the frame pushes the rectangular plate on the rotating rod, thereby driving the rotating rod to adjust the position of the baffle.

[0012] Preferably, a positioning rod is fixedly connected to the lower surface of the limiting ring.

[0013] The effect achieved by the above components is that when the strip plate comes into contact with the positioning rod, the positioning rod will restrict the position of the strip plate, preventing the baffle from rotating excessively due to the torque of the torsion spring and failing to stably limit the extension ring.

[0014] Preferably, a limiting rod is fixedly connected to the lower surface of the limiting ring.

[0015] The effect achieved by the above components is that the rectangular plate will come into contact with the limiting rod when it rotates, and the limiting rod can limit the rotation range of the rectangular plate and prevent the rectangular plate from losing contact with the strip plate.

[0016] Preferably, the outer circumferential surface of the rotating frame is provided with a plurality of anti-slip grooves.

[0017] The effect achieved by the above components is that the anti-slip groove can increase the friction on the outer circumference of the rotating frame, making it easier to rotate the rotating frame.

[0018] Preferably, an indicator plate is fixedly connected to the outer circumferential surface of the rotating frame.

[0019] The effect achieved by the above components is that the indicator panel can help maintenance personnel quickly grasp the correct rotation direction of the rotating frame.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] In this invention, by setting components such as sealing cloth, extension ring, and limiting ring, when the car steering column is working normally, the sealing cloth will cover the universal joint, preventing the lubricating oil on the surface of the universal joint from being contaminated by dust, thereby extending the service life of the lubricating oil, reducing the wear of the universal joint, and avoiding the need for frequent maintenance of the car steering column. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled structure at the drive shaft of this utility model;

[0024] Figure 3 This is a partial structural diagram of the drive shaft of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the sealing cloth section of this utility model;

[0026] Figure 5 This is a cross-sectional structural diagram of the limiting ring of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure at the rotating frame of this utility model;

[0028] Figure 7 This is a cross-sectional structural diagram of the rotating frame of this utility model.

[0029] Legend: 1. Drive shaft; 2. Universal joint; 3. Connecting shaft; 4. Fixing plate; 5. Sealing cloth; 6. Extension ring; 7. Limiting ring; 8. Rotating rod; 9. Baffle; 10. Torsion spring; 11. Rotating frame; 12. Strip plate; 13. Rectangular plate; 14. Positioning rod; 15. Limiting rod; 16. Anti-slip groove; 17. Indicator plate. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0032] like Figures 1-7As shown, this utility model provides an automotive steering column, including a drive shaft 1. Universal joints 2 are fixedly connected to both ends of the drive shaft 1. A connecting shaft 3 is fixedly connected to one end of each universal joint 2. A fixing plate 4 is fixedly connected to the circumferential surface of the connecting shaft 3. A sealing cloth 5 is fixedly connected to the surface of the fixing plate 4. The universal joint 2 is located inside the sealing cloth 5. An extension ring 6 is fixedly connected to one end of the sealing cloth 5. A limit ring 7 is fixedly connected to the circumferential surface of the drive shaft 1. The extension ring 6 is slidably sleeved on the outer circumferential surface of the limit ring 7. A rotating rod 8 is rotatably connected inside the limit ring 7. A baffle 9 is fixedly connected to one end of the rotating rod 8. The baffle 9 is slidably connected to the extension ring 6. By setting components such as the sealing cloth 5, the extension ring 6, and the limit ring 7, when the automotive steering column is working normally, the sealing cloth 5 will cover the universal joint 2, preventing… The lubricating oil on the surface of the universal joint 2 is contaminated by dust, thus extending the service life of the lubricating oil, reducing the wear of the universal joint 2, and avoiding the need for frequent maintenance of the steering column. A torsion spring 10 is fitted on the circumferential surface of the rotating rod 8. The two ends of the torsion spring 10 are fixedly connected to the limiting ring 7 and the baffle 9, respectively. The torsion spring 10 will drive the baffle 9 to rotate by its own torque, so that the baffle 9 will automatically reset. A rectangular plate 13 is fixedly connected to the circumferential surface of the rotating rod 8. A rotating frame 11 is rotatably connected to the surface of the limiting ring 7. The rotating frame 11 is rotatably connected to the drive shaft 1. A strip plate 12 is fixedly connected to the inner circumferential surface of the rotating frame 11. The strip plate 12 is slidably connected to the rectangular plate 13. When the rotating frame 11 is rotated, the strip plate 12 inside the rotating frame 11 pushes the rectangular plate 13 on the rotating rod 8, thereby driving the rotating rod 8 to adjust the position of the baffle 9.

[0033] like Figures 3-7 As shown, a positioning rod 14 is fixedly connected to the lower surface of the limiting ring 7. When the strip plate 12 contacts the positioning rod 14, the positioning rod 14 will limit the position of the strip plate 12, preventing the baffle 9 from rotating excessively due to the torque of the torsion spring 10 and failing to stably limit the extension ring 6. A limiting rod 15 is fixedly connected to the lower surface of the limiting ring 7. When the rectangular plate 13 rotates, it will contact the limiting rod 15. The limiting rod 15 can limit the rotation range of the rectangular plate 13, preventing the rectangular plate 13 from detaching from the strip plate 12. Several anti-slip grooves 16 are provided on the outer circumferential surface of the rotating frame 11. The anti-slip grooves 16 can increase the friction of the outer circumferential surface of the rotating frame 11, making it easier to rotate the rotating frame 11. An indicator plate 17 is fixedly connected to the outer circumferential surface of the rotating frame 11. The indicator plate 17 can help maintenance personnel quickly grasp the correct rotation direction of the rotating frame 11.

[0034] Its overall working principle is as follows: during the use of the car steering column, the two connecting shafts 3 are respectively connected to the steering wheel and the steering gear. When the driver turns the steering wheel, the steering force drives the universal joint 2 to rotate through the transmission shaft 1 and adjusts the shaft angle, and finally drives the steering gear to steer the car.

[0035] When the steering column is working normally, the sealing cloth 5 covers the universal joint 2, preventing the lubricating oil on the surface of the universal joint 2 from being contaminated by dust, thereby extending the service life of the lubricating oil and reducing the wear of the universal joint 2. When the universal joint 2 needs to be inspected, first observe the direction indicated by the indicator plate 17, and then rotate the rotating frame 11 with the help of the anti-slip groove 16 outside the rotating frame 11. The strip plate 12 inside the rotating frame 11 pushes the rectangular plate 13 on the rotating rod 8, causing the rotating rod 8 to adjust the position of the baffle 9. When the baffle 9 rotates, it will twist the torsion spring 10. The rectangular plate 13 will rotate and contact the limit rod 15. The limit rod 15 can limit the rotation range of the rectangular plate 13 and prevent the rectangular plate 13 from losing contact with the strip plate 12. At this time, the baffle 9 Once the extension ring 6 is no longer in contact with the sealing cloth 5, it can be pulled to prevent the sealing cloth 5 from obstructing the universal joint 2. After maintenance, the extension ring 6 is re-attached to the circumference of the limiting ring 7. When the rotating frame 11 is released, the torsion spring 10 will use its own torque to drive the baffle 9 to rotate in the opposite direction. After the baffle 9 contacts the extension ring 6, it will restrict the position of the extension ring 6, thereby restricting the position of the sealing cloth 5. The rectangular plate 13 will drive the strip plate 12 to move, and the strip plate 12 will drive the rotating frame 11 to rotate in the opposite direction. When the strip plate 12 contacts the positioning rod 14, the positioning rod 14 will restrict the position of the strip plate 12, preventing the baffle 9 from being unable to stably limit the extension ring 6 due to excessive rotation caused by the torque of the torsion spring 10.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A car steering column, characterized in that: The device includes a drive shaft (1), both ends of which are fixedly connected to universal joints (2). One end of the universal joint (2) is fixedly connected to a connecting shaft (3). A fixing plate (4) is fixedly connected to the circumferential surface of the connecting shaft (3). A sealing cloth (5) is fixedly connected to the surface of the fixing plate (4). The universal joint (2) is located inside the sealing cloth (5). One end of the sealing cloth (5) is fixedly connected to an extension ring (6). A limit ring (7) is fixedly connected to the circumferential surface of the drive shaft (1). The extension ring (6) is slidably sleeved on the outer circumferential surface of the limit ring (7). A rotating rod (8) is rotatably connected inside the limit ring (7). One end of the rotating rod (8) is fixedly connected to a baffle (9). The baffle (9) is slidably connected to the extension ring (6).

2. The automobile steering column according to claim 1, characterized in that: The circumferential surface of the rotating rod (8) is fitted with a torsion spring (10), and the two ends of the torsion spring (10) are fixedly connected to the limiting ring (7) and the baffle (9) respectively.

3. A car steering column according to claim 2, characterized in that: A rectangular plate (13) is fixedly connected to the circumferential surface of the rotating rod (8), and a rotating frame (11) is rotatably connected to the surface of the limiting ring (7). The rotating frame (11) is rotatably connected to the transmission shaft (1), and a strip plate (12) is fixedly connected to the inner circumferential surface of the rotating frame (11). The strip plate (12) is slidably connected to the rectangular plate (13).

4. A car steering column according to claim 3, characterized in that: The lower surface of the limiting ring (7) is fixedly connected to a positioning rod (14).

5. A car steering column according to claim 3, characterized in that: The lower surface of the limiting ring (7) is fixedly connected to the limiting rod (15).

6. A car steering column according to claim 3, characterized in that: The outer circumference of the rotating frame (11) is provided with several anti-slip grooves (16).

7. A car steering column according to claim 3, characterized in that: An indicator plate (17) is fixedly connected to the outer circumference of the rotating frame (11).

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