Wave washer structure for EPS tubular column hole

Abstract

The utility model belongs to the technical field of automobile part equipment, and particularly relates to a wave washer structure for an EPS tubular column hole. A bearing, a wave washer for a hole and an elastic washer for the hole are sequentially installed on the inner side of the tubular column, and the two side faces of the wave washer for the hole abut against the bearing and the elastic washer for the hole respectively. A step is arranged at the upper end of the inner wall of the tubular column, the bearing, the hole wave washer and the hole elastic washer are arranged in the tubular column from an opening in the upper end of the tubular column, and the lower end face of the bearing abuts against the surface of the step. Secondly, a mounting groove is formed in the inner wall of the tubular column, the mounting groove and the tubular column are coaxially distributed, and the elastic washer for the hole is used for being arranged in the mounting groove. Therefore, the wave washer for the hole is arranged between the bearing and the elastic washer for the hole, and the wave washer for the hole is compressed to keep a certain elastic force to the bearing and the elastic washer for the hole in the form of a spring, so that a gap existing in design is eliminated, and no gap is generated after durability; therefore, abnormal sound of the automobile in the using process is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts and equipment technology, and specifically relates to a waveform gasket structure for EPS pipe column holes. Background Technology

[0002] EPS is an abbreviation for Electric Power Steering, which is the future direction of automotive steering systems. This system provides steering assistance directly through an electric motor, eliminating the need for a power steering pump, hoses, hydraulic fluid, transmission belt, and pulley mounted on the engine—all essential components of a hydraulic power steering system. This saves energy and protects the environment. Furthermore, it features simple adjustment, flexible assembly, and the ability to provide steering assistance in various conditions. The steering column is a crucial component of EPS, serving as the steering mechanism connecting the steering wheel and the steering gear.

[0003] However, the tubing requires press-fitted bearings. To ensure no radial and axial clearance after press-fitting, retaining rings are used for the assembly holes. However, this cannot guarantee the bearing clearance, and the bearings may loosen and produce abnormal noise after durability. Therefore, it is necessary to design a corrugated washer structure for EPS tubing holes to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a waveform gasket structure for EPS pipe hole, thereby solving the issues raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waveform washer structure for EPS pipe column holes, comprising a pipe column, a bearing, a waveform washer for holes, and an elastic washer for holes. The bearing, the waveform washer for holes, and the elastic washer for holes are sequentially installed on the inner side of the pipe column. The two sides of the waveform washer for holes abut against the bearing and the elastic washer for holes, respectively.

[0006] Furthermore, the waveform washer structure for the EPS tube post hole also includes a spline shaft and a buffer mechanism. The buffer mechanism is installed inside the tube post, the spline shaft is coaxially distributed with the tube post, and the end of the spline shaft is used to insert into the tube post and connect with the buffer mechanism.

[0007] Furthermore, the waveform washer structure for the EPS tube column hole also includes a push plate, which is annular in shape. The push plate is connected to the spline shaft and coaxially distributed with the spline shaft. The buffer mechanism includes a baffle, a first connecting block, a push rod, and a torsion spring. The baffle is connected to the tube column, the first connecting block is connected to the upper end of the baffle, the lower end of the push rod is rotatably connected to the first connecting block through a pin, the upper end of the push rod is inclined upward, the push plate is used to abut against the upper end of the push rod, and the pin is provided with the torsion spring with its axial direction facing the horizontal direction.

[0008] Furthermore, the baffle is configured as a circular structure, the baffle is coaxially distributed with the column, and a plurality of first connecting blocks are evenly distributed around the upper surface of the baffle. Each first connecting block is rotatably connected to the push rod through the pin shaft, and each pin shaft is connected to the torsion spring.

[0009] Furthermore, the buffer mechanism also includes a second connecting block and a sliding block. A groove is provided on the tubing, and the extension of the groove is parallel to the axial direction of the tubing. The second connecting block is connected to the lower end face of the baffle. A slot is provided on the second connecting block, and the end of the sliding block is used to insert into the slot. The sliding block is slidably connected to the groove.

[0010] Furthermore, the tubing column is provided with limiting grooves, and multiple limiting grooves are provided. The multiple limiting grooves are distributed sequentially along the extension direction of the sliding groove, and all the multiple limiting grooves are connected to the sliding groove. The sliding block is used to engage with the limiting groove.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] By placing a corrugated washer between the bearing and the retaining ring, the compression of the corrugated washer allows it to act like a spring, maintaining a certain elastic force on the bearing and the retaining ring. This eliminates any design gaps and ensures that no gaps will form after durability, thus preventing abnormal noises during vehicle use.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and drawings. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This diagram shows the external structure of the waveform washer structure for EPS pipe hole according to an embodiment of the present invention;

[0016] Figure 2 This invention provides a schematic diagram of the internal structure of a waveform washer for EPS pipe hole according to an embodiment of the present invention.

[0017] Figure 3 An exploded view of the bearing, the wave washer for the bore, and the elastic washer for the bore according to an embodiment of the present invention is shown.

[0018] Reference numerals: 1. Pipe column; 2. Bearing; 3. Wave-shaped washer for hole; 4. Elastic washer for hole; 5. Splined shaft; 6. Push plate; 7. Baffle; 8. First connecting block; 9. Push rod; 10. Torsion spring; 11. Second connecting block; 12. Sliding block; 13. Slide groove; 14. Slot; 15. Limiting groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figures 1 to 3 As shown in the figure, an EPS column hole waveform washer structure of this utility model includes a column 1, a bearing 2, a hole waveform washer 3 and a hole elastic washer 4. The bearing 2, the hole waveform washer 3 and the hole elastic washer 4 are installed in sequence on the inner side of the column 1. The two sides of the hole waveform washer 3 abut against the bearing 2 and the hole elastic washer 4 respectively.

[0021] In this embodiment, specifically, a step is provided at the upper end of the inner wall of the column 1. The bearing 2, the corrugated washer 3, and the elastic washer 4 are installed inside the column 1 through the upper opening, with the lower end face of the bearing 2 abutting against the surface of the step. Furthermore, an installation groove is provided on the inner wall of the column 1, coaxially distributed with the column 1, and the elastic washer 4 is installed within the installation groove. Thus, by placing the corrugated washer 3 between the bearing 2 and the elastic washer 4, the compression of the corrugated washer 3 allows it to maintain a certain elastic force on the bearing 2 and the elastic washer 4, eliminating any design gaps and ensuring no gaps occur even after durability, thereby preventing abnormal noises during vehicle use.

[0022] Optionally, such as Figure 1 and Figure 2 As shown, the waveform washer structure for the EPS tube post hole also includes a spline shaft 5 and a buffer mechanism. The buffer mechanism is installed inside the tube post 1. The spline shaft 5 is coaxially distributed with the tube post 1. The end of the spline shaft 5 is used to insert into the tube post 1 and connect with the buffer mechanism.

[0023] Specifically, the column 1 is used to fix the position of the spline shaft 5, the bearing 2 ensures the flexible movement of the spline shaft 5, and an elastic washer 4 with a hole is provided above the bearing 2 to prevent the spline shaft 5 from moving out. However, the spline shaft 5 may collide with the column 1 and its internal structure due to excessive speed during installation, which may easily cause damage to the EPS column 1.

[0024] In this embodiment, by installing a buffer mechanism inside the tubing column 1, the spline shaft 5 is inserted into the tubing column 1, and the end of the spline shaft 5 is connected to the buffer mechanism. During the installation process, specifically, when the spline shaft 5 moves along the axial direction of the tubing column 1, the spline shaft 5 acts on the buffer mechanism. The buffer mechanism absorbs the power transmitted by the spline shaft 5 to avoid the spline shaft 5 from impacting due to high speed when it is installed into the tubing column 1, which is beneficial to protecting the EPS tubing column 1.

[0025] Optionally, such as Figure 2 As shown, the waveform washer structure for the EPS column hole also includes a push plate 6. The push plate 6 is annular and is connected to and coaxially distributed with the spline shaft 5. The buffer mechanism includes a baffle 7, a first connecting block 8, a push rod 9, and a torsion spring 10. The baffle 7 is connected to the column 1. The first connecting block 8 is connected to the upper end of the baffle 7. The lower end of the push rod 9 is rotatably connected to the first connecting block 8 through a pin. The upper end of the push rod 9 is inclined upward. The push plate 6 is used to abut against the upper end of the push rod 9. The torsion spring 10 is provided on the pin and its axial direction is horizontal.

[0026] In this embodiment, when the spline shaft 5 moves along the axial direction of the column 1, the push plate 6 on the spline shaft 5 approaches and abuts against the upper end of the push rod 9, causing the push rod 9 to rotate relative to the first connecting block 8 around the pin. A torsion spring 10 is provided on the pin, and during the rotation of the push rod 9, the torsion spring 10 generates an opposing thrust, thereby buffering the push plate 6 and the spline shaft 5, ensuring the buffering effect of the buffering mechanism on the installation of the spline shaft 5. Secondly, by providing the baffle 7, the installation of the first connecting block 8 is facilitated.

[0027] Optionally, the baffle 7 is configured as a circular structure, the baffle 7 is coaxially distributed with the column 1, and a plurality of first connecting blocks 8 are evenly distributed around the upper surface of the baffle 7. Each first connecting block 8 is rotatably connected to the push rod 9 through the pin shaft, and each pin shaft is connected to the torsion spring 10.

[0028] In this embodiment, by circumferentially arranging multiple first connecting blocks 8 on the baffle 7, multiple push rods 9 and multiple torsion springs 10 can be simultaneously arranged, which helps to improve the buffering effect on the spline shaft 5 and further prevents the spline shaft 5 from colliding with the tube column 1 during installation. Secondly, with the multiple first connecting blocks 8 evenly distributed circumferentially on the baffle 7, the multiple push rods 9 can evenly abut against the push plate 6, preventing the push plate 6 from tilting, thereby ensuring the uniformity of force on the spline shaft 5 during installation, so that the spline shaft 5 is accurately installed in the tube column 1.

[0029] Optionally, such as Figure 1 and Figure 2 As shown, the buffer mechanism further includes a second connecting block 11 and a sliding block 12. A sliding groove 13 is provided on the column 1, and the extension of the sliding groove 13 is parallel to the axial direction of the column 1. The second connecting block 11 is connected to the lower end face of the baffle 7. A slot 14 is provided on the second connecting block 11. The end of the sliding block 12 is used to insert into the slot 14, and the sliding block 12 is slidably connected to the sliding groove 13.

[0030] In this embodiment, the end of the sliding block 12 is inserted into the slot 14 on the second connecting block 11. By opening a groove 13 on the column 1 and placing the sliding block 12 in the groove 13, the sliding block 12 can drive the second connecting block 11 and the baffle 7 to move along the axial direction of the column 1 during the sliding process of the sliding block 12 in the groove 13, thereby adjusting the position of the push rod 9 in the column 1. Therefore, since the dimensions of the spline shaft 5 and the position of the push plate 6 on the spline shaft 5 may deviate during the processing, the sliding block 12 is used to adjust the position of the push rod 9, making it easier to adjust the push rod 9 to a suitable position, thereby improving the buffering effect on the spline shaft 5.

[0031] Optionally, such as Figure 1As shown, the tubular column 1 has a limiting groove 15, and there are multiple limiting grooves 15. The multiple limiting grooves 15 are distributed sequentially along the extension direction of the sliding groove 13. The multiple limiting grooves 15 are all connected to the sliding groove 13. The sliding block 12 is used to be inserted into the limiting groove 15.

[0032] In this embodiment, by creating a limiting groove 15, when the sliding block 12 slides to a certain position within the slide groove 13, rotating the sliding block 12 causes it to engage with the limiting groove 15, thereby restricting the movement of the sliding block 12. This achieves the limiting effect on the push rod 9 when it is adjusted to a suitable position. Furthermore, by creating multiple limiting grooves 15 and distributing them sequentially along the extension direction of the slide groove 13, the sliding block 12 can be engaged with different limiting grooves 15 to limit the push rod 9 when it is adjusted to different positions.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wave-shaped washer structure for EPS pipe column holes, characterized in that, The device includes a tubular column (1), a bearing (2), a corrugated washer for the bore (3), and an elastic washer for the bore (4). The bearing (2), the corrugated washer for the bore (3), and the elastic washer for the bore (4) are installed sequentially on the inner side of the tubular column (1). The two sides of the corrugated washer for the bore (3) abut against the bearing (2) and the elastic washer for the bore (4), respectively.

2. The waveform washer structure for EPS pipe hole according to claim 1, characterized in that, It also includes a spline shaft (5) and a buffer mechanism, the buffer mechanism being installed inside the column (1), the spline shaft (5) being coaxially distributed with the column (1), and the end of the spline shaft (5) being used to insert into the column (1) and connect with the buffer mechanism.

3. The waveform washer structure for EPS pipe hole according to claim 2, characterized in that, It also includes a push plate (6), which is set in a ring shape. The push plate (6) is connected to the spline shaft (5) and is coaxially distributed with the spline shaft (5). The buffer mechanism includes a baffle (7), a first connecting block (8), a push rod (9) and a torsion spring (10). The baffle (7) is connected to the column (1). The first connecting block (8) is connected to the upper end of the baffle (7). The lower end of the push rod (9) is rotatably connected to the first connecting block (8) through a pin. The upper end of the push rod (9) is inclined upward. The push plate (6) is used to abut against the upper end of the push rod (9). The pin is provided with the torsion spring (10) and its axial direction is horizontal.

4. The waveform washer structure for EPS pipe hole according to claim 3, characterized in that, The baffle (7) is configured as a circular structure. The baffle (7) is coaxially distributed with the column (1). Multiple first connecting blocks (8) are evenly distributed around the upper surface of the baffle (7). Each first connecting block (8) is rotatably connected to the push rod (9) through the pin shaft. Each pin shaft is connected to the torsion spring (10).

5. The waveform washer structure for EPS pipe hole according to claim 4, characterized in that, The buffer mechanism further includes a second connecting block (11) and a sliding block (12). A groove (13) is provided on the column (1). The extension of the groove (13) is parallel to the axial direction of the column (1). The second connecting block (11) is connected to the lower end face of the baffle (7). A slot (14) is provided on the second connecting block (11). The end of the sliding block (12) is used to be inserted into the slot (14). The sliding block (12) is slidably connected to the groove (13).

6. The waveform washer structure for EPS pipe hole according to claim 5, characterized in that, The tubular column (1) has a limiting groove (15) provided. Multiple limiting grooves (15) are provided. Multiple limiting grooves (15) are distributed sequentially along the extension direction of the sliding groove (13). Multiple limiting grooves (15) are all connected to the sliding groove (13). The sliding block (12) is used to be inserted into the limiting groove (15).

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