Electric adjusting steering column and automobile

Abstract

The utility model belongs to the technical field of steering columns, and discloses an electric adjusting steering column which comprises an installation support, an adjusting assembly and a first tubular column. The adjusting assembly is provided with a power source used for driving the adjusting assembly to act. One end of the first tubular column is hinged with the mounting bracket, and the other end is movably connected with the mounting bracket through an adjusting assembly; a sliding block is arranged between the adjusting assembly and the first tubular column. An oil storage groove used for injecting lubricating grease is formed in the sliding block, or the sliding block is sleeved with a self-lubricating guide sleeve in the circumferential direction. According to the utility model, the friction abnormal sound generated in the process of electrically adjusting the angle of the first tubular column can be well eliminated or reduced. The utility model further discloses an automobile with the electric adjusting steering column.

Description

Technical Field

[0001] The utility model belongs to the technical field of steering columns, in particular to an electric adjustable steering column and a car. Background Art

[0002] At present, automobiles generally use manual adjustment or electric adjustment to adjust the position of the steering column to achieve the position adjustment of the steering wheel, thereby meeting the actual usage requirements of users.

[0003] With the continuous development of intelligence, more and more cars choose electric adjustment to adjust the steering column position. However, during the actual electric adjustment process, the adjustment system will have a large friction noise, resulting in a bad user experience. Utility Model Content

[0004] In order to solve the above technical problems, the utility model discloses an electrically adjustable steering column, which can well eliminate or reduce the friction noise generated during the process of electrically adjusting the angle of the first column. The utility model also discloses a car having the electrically adjustable steering column.

[0005] The specific technical solution of the utility model is as follows:

[0006] An electrically adjustable steering column, comprising:

[0007] Mounting bracket;

[0008] an adjustment assembly having a power source for driving its movement; and

[0009] A first pipe column, one end of which is hinged to the mounting bracket, and the other end of which is movably connected to the mounting bracket via an adjustment assembly;

[0010] Wherein, a sliding block is provided between the adjustment assembly and the first pipe column;

[0011] The slider is provided with an oil storage groove for injecting grease, or the circumferential sleeve of the slider is provided with a self-lubricating guide sleeve.

[0012] The oil storage tank or the self-lubricating guide sleeve can continuously provide lubrication for the slider to avoid abnormal friction noise caused by large friction during the sliding process of the slider, thereby effectively improving the user experience.

[0013] Preferably, the slider is arranged on the mounting bracket, and the adjustment assembly is provided for cooperating with the sliding of the slider, and when the power source is actuated, the slider slides in the sliding hole.

[0014] During the angle adjustment process, the sliding hole can provide motion limiting for the slider, so that the movement of the adjustment component has high motion stability. After the angle adjustment is completed, the adjustment component is supported by the slider, so that the first pipe column has good use stability.

[0015] Preferably, the adjustment component comprises:

[0016] A threaded turn pin, wherein the threaded portion of the threaded turn pin is connected to the mounting bracket, and the optical axis portion of the threaded turn pin is connected to the slider.

[0017] The threaded turn pin is threadedly connected to the mounting bracket, so the relative distance between the slider and the mounting bracket is constant, so that the slider can reciprocate well in the slide hole along the preset direction to meet the actual requirements of the angle adjustment of the first pipe column.

[0018] Preferably, a bushing is provided between the threaded turn pin and the slider, and the inner side of the bushing is coated with a friction-reducing material.

[0019] The friction-reducing material can reduce the friction between the slider and the threaded rotating pin, further avoiding abnormal rotation noise.

[0020] Preferably, the end of the threaded turn pin away from the adjustment assembly has a column head, and an anti-loosening washer is provided between the column head and the main body.

[0021] The anti-loosening washer is made of elastic material, which can effectively prevent loosening between the threaded pin and the mounting bracket, thereby improving the use stability of the electrically adjustable first pipe column.

[0022] Preferably, the adjustment component comprises:

[0023] an angle adjustment support, the angle adjustment support being hinged to the first pipe column and slidably connected to the mounting bracket via a slider; and

[0024] A driving mechanism, the driving mechanism is rotatably connected to the first pipe column and the angle adjustment support;

[0025] Wherein, the free end of the power source is connected to the driving mechanism.

[0026] The angle adjustment support realizes the driving adjustment of the power source through a three-point connection, wherein one connection point cooperates with the first pipe column, one connection point cooperates with the driving mechanism, and the last connection point cooperates with the mounting bracket, whereby when the driving mechanism is in action, the angle adjustment support can rotate relative to the first pipe column, thereby realizing sliding relative to the mounting bracket, thereby realizing the angle adjustment of the first pipe column under the premise that the relative position of the mounting bracket on the car remains unchanged.

[0027] Preferably, the driving mechanism comprises:

[0028] A screw sleeve, wherein the screw sleeve is hinged on the angle adjustment support; and

[0029] A screw rod, one end of which is transmission-connected to a power source, and the other end of which is threadedly connected to a screw rod sleeve; and a middle portion of the screw rod is hinged to the first pipe column.

[0030] The transmission matching structure of the screw sleeve and the screw is simple, practical and easy to implement. Since there is a rotational connection relationship between the screw and the first pipe column, during the rotation of the angle adjustment support relative to the first pipe column, the screw sleeve can be kept moving along the axial direction of the screw, thereby better meeting the angle adjustment requirements of the first pipe column.

[0031] Preferably, the screw rod is connected to the free end of the power source via a flexible shaft.

[0032] The flexible shaft can flexibly transmit the rotational motion and torque to the screw rod, so that the screw rod can well drive the screw rod sleeve to move.

[0033] Preferably, the oil storage groove is arranged along the axial direction of the slider.

[0034] The structure is simple and easy to process, and can well realize the addition of grease, thereby meeting the friction reduction requirements.

[0035] A car comprises an electrically adjustable steering column as described above.

[0036] Compared with the prior art, the utility model can effectively eliminate or reduce the friction noise generated during the adjustment of the angle of the first tube column, thereby bringing better control experience to the user; the utility model also has a compact transmission structure, which can effectively realize the angle adjustment of the first tube column. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of an embodiment of the utility model;

[0038] Figure 2 for Figure 1 A cross-sectional view of

[0039] Figure 3 for Figure 1 A partial schematic diagram of

[0040] Figure 4 for Figure 3 A partial exploded view of

[0041] Figure 5 Schematic diagram of a slider in an embodiment of the utility model.

[0042] In the figure: 1-mounting bracket; 2-first pipe column; 3-power source; 4-slider; 5-oil storage tank; 6-sliding hole; 7-angle adjustment support; 8-support ear; 9-screw sleeve; 10-screw; 11-threaded pin; 12-bolt; 13-bushing; 14-anti-loosening washer; 15-flexible shaft. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0044] This embodiment is used in automobiles, and the steering wheel position is adjusted by electrically adjusting the steering column to meet the actual use needs of users. Figure 1 to Figure 5 As shown, an electrically adjustable steering column comprises a mounting bracket 1, an adjustment assembly and a first column 2; the adjustment assembly has a power source 3 for driving its movement; one end of the first column 2 is hinged to the mounting bracket 1, and the other end is movably connected to the mounting bracket 1 through the adjustment assembly; a slider 4 is provided between the adjustment assembly and the first column 2; and an oil storage tank 5 for injecting grease is provided on the slider 4. In this embodiment, the steering column also includes a second column, which is located inside the first column 2 and can move along the axial direction of the first column 2. The first column 2 is connected to the steering wheel, thereby realizing the height adjustment of the steering wheel through the relative translation of the first column 2 and the second column, and realizing the angle adjustment of the steering wheel through the rotation of the first column 2 relative to the mounting bracket 1 by the second column. Usually, in the process of angle adjustment, the action of the adjustment assembly will produce a large friction noise, which will bring a bad user experience. Therefore, in this embodiment, a slider 4 is provided, and an oil storage tank 5 is provided on the slider 4, so that the oil storage tank 5 can be injected with an appropriate amount of grease, thereby reducing the friction noise generated by the movement of the slider 4, thereby improving the user experience. In another embodiment, friction reduction can also be achieved by providing a self-lubricating guide sleeve on the circumferential sleeve of the slider 4 .

[0045] In this embodiment, the oil storage tank 5 is arranged along the axial direction of the slider 4. Specifically, a plurality of oil storage tanks 5 are arranged on the slider 4, and the axes of any two adjacent oil storage tanks 5 are parallel, which is convenient for processing and for injecting a proper amount of grease during assembly.

[0046] like Figure 1 to Figure 4As shown, in this embodiment, the slider 4 is arranged on the mounting bracket 1, and the adjustment component is provided for cooperating with the sliding of the slider 4. When the power source 3 is in motion, the slider 4 slides in the slide hole 6. During use, the adjustment component rotates relative to the first pipe column 2 under the action of the power source 3. At this time, the slider 4 can form a linear slideway with the adjustment component. In this process, not only the movement path of the adjustment component is matched, but also the support of the first pipe column 2 can be achieved through the adjustment component. Further, the adjustment component includes an angle adjustment support 7 and a driving mechanism; the angle adjustment support 7 is hinged with the first pipe column 2 and is slidably connected with the mounting bracket 1 through the slider 4; the driving mechanism is rotatably connected with the first pipe column 2 and the angle adjustment support 7; the free end of the power source 3 is connected to the driving mechanism. The angle adjustment support 7 is movably connected to the driving mechanism and the mounting bracket 1 to meet the structural assembly requirements. The mounting bracket 1 has a lug 8, and there is an assembly space between the lug 8 and the body of the mounting bracket 1, so that the installation of the driving mechanism can be well achieved, and the compactness of the structure is also achieved. Furthermore, the driving mechanism includes a screw sleeve 9 and a screw 10; the screw sleeve 9 is hinged on the angle adjustment support 7; one end of the screw 10 is transmission-connected to the power source 3, and the other end is threadedly connected to the screw sleeve 9, and the middle part of the screw 10 is hinged to the first pipe column 2. The screw sleeve is located between the support ear 8 and the body of the mounting bracket 1, and is hinged on the support ear 8.

[0047] In this embodiment, if Figure 3 and Figure 4 As shown, the adjustment assembly includes a threaded pin 11, the threaded portion of the threaded pin 11 is connected to the mounting bracket 1, and the optical axis portion of the threaded pin 11 is connected to the slider 4. In addition, the first pipe column 2 is rotatably connected to the angle adjustment support 7 through a bolt 12. The screw rod 10 is connected to the free end of the power source 3 through a flexible shaft 15.

[0048] Therefore, in this embodiment, the mounting bracket 1 is fixed to the vehicle CCB bracket, and the angle adjustment is achieved by three movable connection points, which are respectively located at the screw sleeve 9, the bolt 12, and the threaded pin shaft, wherein a slider 4 is provided at the threaded pin shaft, so as to achieve the angle adjustment movement of the steering column relative to the CCB bracket, so as to meet the requirement of adjustable steering wheel angle position. The slider 4 is movably arranged in the slide hole 6, and has a relatively fixed position with the mounting bracket 1, so that the structure can reduce the space required for the arrangement of the steering column and has better adaptability. During the adjustment process, the slider 4 moves along the extension direction of the slide hole 6. Since a circular hole is provided in the center of the slider 4, the threaded pin shaft can penetrate the slider 4 to achieve a stable connection. In this embodiment, the power source 3 is a motor. Therefore, during the adjustment process, the motor outputs a rotation torque, so that the screw sleeve 9 moves along the axial direction of the screw 10 under the rotation of the screw 10, driving the angle adjustment support 7 to rotate around the bolt 12. The slider 4 can rotate around the threaded pin at this time. Since the angle adjustment support 7 will be displaced relative to the threaded pin during its rotation, the slider 4 can be used to achieve displacement compensation, thereby completing the angle adjustment. Therefore, in the above process, the oil storage tank 5 at the contact position between the slider 4 and the angle adjustment support 7 can provide continuous lubrication in the working state after adding an appropriate amount of grease during assembly to avoid friction noise.

[0049] It should be noted that the sliding hole 6 can be a square hole, an elliptical hole, a waist-shaped hole, etc., as long as it can compensate for the displacement of the angle adjustment support 7 during the sliding process.

[0050] Further, if Figure 4 As shown, a bushing 13 is provided between the threaded turn pin 11 and the slider 4, and the inner side of the bushing 13 is coated with a friction-reducing material. The bushing 13 can make the connection between the threaded turn pin 11 and the slider 4 tighter, and the coated friction-reducing material can also better realize the relative rotation between the two, so as to better meet the angle adjustment requirements. The end of the threaded turn pin 11 away from the adjustment component has a column head, and an anti-loosening washer 14 is provided between the column head and the main body. It is known that the anti-loosening washer 14 can well prevent the threaded turn pin 11 from detaching from the mounting bracket 1, thereby ensuring the stability of the steering column.

[0051] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An electrically adjustable steering column, characterized in that: include: Mounting bracket; An adjustment component having a power source for driving its movement; as well as A first pipe column, one end of which is hinged to the mounting bracket, and the other end of which is movably connected to the mounting bracket via an adjustment assembly; Wherein, a sliding block is provided between the adjustment assembly and the first pipe column; The slider is provided with an oil storage groove for injecting grease, or the circumferential sleeve of the slider is provided with a self-lubricating guide sleeve.

2. An electrically adjustable steering column as claimed in claim 1, characterized in that: The slider is arranged on the mounting bracket, and the adjustment assembly is provided with a sliding member for cooperating with the slider. When the power source is activated, the slider slides in the sliding hole.

3. An electrically adjustable steering column as claimed in claim 2, characterized in that: The adjustment component comprises: A threaded turn pin, wherein the threaded portion of the threaded turn pin is connected to the mounting bracket, and the optical axis portion of the threaded turn pin is connected to the slider.

4. An electrically adjustable steering column as claimed in claim 3, characterized in that: A bushing is arranged between the threaded rotating pin and the sliding block, and the inner side of the bushing is coated with a friction-reducing material.

5. An electrically adjustable steering column as claimed in claim 3, characterized in that: The end of the threaded turn pin away from the adjustment assembly is provided with a column head, and an anti-loosening washer is arranged between the column head and the main body.

6. An electrically adjustable steering column as claimed in claim 1, characterized in that: The adjustment component comprises: an angle adjustment support, the angle adjustment support being hinged to the first pipe column and slidably connected to the mounting bracket via a slider; and A driving mechanism, the driving mechanism is rotatably connected to the first pipe column and the angle adjustment support; Wherein, the free end of the power source is connected to the driving mechanism.

7. An electrically adjustable steering column as claimed in claim 6, characterized in that: The driving mechanism comprises: A screw sleeve, wherein the screw sleeve is hinged on the angle adjustment support; and A screw rod, one end of which is transmission-connected to a power source, and the other end of which is threadedly connected to a screw rod sleeve; and a middle portion of the screw rod is hinged to the first pipe column.

8. An electrically adjustable steering column as claimed in claim 7, characterized in that: The screw rod is connected with the free end of the power source through a flexible shaft.

9. An electrically adjustable steering column as claimed in claim 1, characterized in that: The oil storage groove is arranged along the axial direction of the sliding block.

10. An automobile, characterized in that It comprises an electrically adjustable steering column as claimed in any one of claims 1 to 9.

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