Riveting flexible bearing anti-disengaging mechanism

Abstract

The utility model discloses an anti-disengaging mechanism for a riveting flexible bearing, relates to the technical field of steering columns, and aims to solve the problems that in the prior art, materials on a column barrel are stacked on a bearing, so that the bearing is prone to generating large rotating torque and large fluctuation of the rotating torque due to stress. A limiting protrusion is arranged on the inner wall of the portion, at the bottom of the flexible bearing, of the tubular column barrel, a bending anti-disengaging mechanism is arranged on the inner wall of the portion, at the top of the flexible bearing, of the tubular column barrel and comprises a first bending plate and a second bending plate, a gap is formed between the first bending plate and the second bending plate, and a clamping groove is formed in the outer side of the outer diameter of the flexible bearing. A clamping groove is formed in the tubular column casing, an anti-disengaging limiting mechanism matched with the clamping groove is arranged on the tubular column casing at the position opposite to the clamping groove, the anti-disengaging limiting mechanism comprises an elastic plate, the elastic plate deviates towards the interior of the tubular column casing, the elastic plate corresponds to the clamping groove in position, the elastic plate can be bounced into the clamping groove, and therefore disengaging of the flexible bearing is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of steering columns, in particular to a riveted flexible bearing anti-slip mechanism. Background Art

[0002] With the development of new energy vehicles, intelligent driving features are becoming increasingly common. When the vehicle is autonomous, steering is no longer achieved by human intervention. Instead, the EPS system reversely drives the steering wheel and steering column. The steering column then acts as the load driven by the EPS system. The steering column's torque plays a crucial role in driving performance and torque detection accuracy. Further reducing this torque has become a new research topic.

[0003] After installation, the rotational torque of the bearing constitutes the main part of the steering column rotational torque. The previously commonly used riveting structure will accumulate material on the column tube onto the bearing, which can easily cause the bearing to produce large rotational torque and large torque fluctuations due to stress. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a riveted flexible bearing anti-slip mechanism, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a riveted flexible bearing anti-slip mechanism, which adopts a technical solution comprising a tubular tube and a flexible bearing, wherein the flexible bearing is interference-fitted inside the tubular tube. A limiting protrusion is provided on the inner wall of the tubular tube at the bottom of the flexible bearing, and a bending anti-slip mechanism is provided on the inner wall of the tubular tube at the top of the flexible bearing. The bending anti-slip mechanism comprises a first bending plate and a second bending plate, wherein a gap is provided between the first bending plate and the second bending plate, and a snap-fit ​​groove is provided on the outer side of the outer diameter of the flexible bearing. An anti-slip limiting mechanism cooperating with the snap-fit ​​groove is provided on the tubular tube at a position opposite to the snap-fit ​​groove, and the anti-slip limiting mechanism comprises a spring plate, which is offset toward the inside of the tubular tube.

[0006] As a preferred technical solution of the present invention, the limiting protrusions are arranged in an annular array to the inside of the tubular column, and the height of the limiting protrusions does not exceed the inner diameter of the flexible bearing to prevent the rotation of the inner diameter of the flexible bearing from being affected.

[0007] As an optimal technical solution of the present invention, one end of the first bending plate and the second bending plate is connected to the tubular column, and the two sides of the first bending plate and the second bending plate are not connected to the tubular column, so that the first bending plate and the second bending plate can be bent by external force to limit the flexible bearing and prevent the flexible bearing from falling out.

[0008] As an optimal technical solution of the present invention, the bottom of the snap-in groove is a first plane, the side of the snap-in groove is a first inclined surface, the spring plate includes a second plane and a second inclined surface, the second plane is in contact with the first plane, and the second inclined surface is in contact with the first inclined surface. The first inclined surface and the second inclined surface are in close contact to prevent the spring plate from deforming when the flexible bearing is subjected to force. If there is a gap between the first inclined surface and the second inclined surface, when the flexible bearing receives external force, the spring plate may collapse into the gap, causing the spring plate to be deformed and damaged.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention enables the spring plate to correspond to the position of the clamping groove, and the spring plate will bounce into the inside of the clamping groove, thereby limiting the falling off of the flexible bearing. The second inclined surface is in contact with the first inclined surface, and the first inclined surface is tightly attached to the second inclined surface, preventing the spring plate from collapsing into the gap when the flexible bearing receives external force, causing the spring plate to be deformed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is an enlarged view of point A of the utility model;

[0012] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the pipe column of the utility model;

[0014] Figure 5 This is a cross-sectional view of the pipe column of the utility model;

[0015] Figure 6 This is an enlarged view of point B of the utility model;

[0016] Figure 7 This is the flexible bearing of the utility model;

[0017] Figure 8 This is a partial cross-sectional view of the flexible bearing of the present utility model.

[0018] In the figure: 1. pipe column; 2. flexible bearing; 201. clamping groove; 2011. first plane; 2012. first inclined surface; 3. bending anti-slip mechanism; 301. first bending plate; 302. second bending plate; 4. limiting protrusion; 5. anti-slip limiting mechanism; 501. spring plate; 5011. second plane; 5012. second inclined surface. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0020] like Figures 1 to 8 As shown, the utility model discloses a riveted flexible bearing anti-slipping mechanism, the technical solution adopted is, comprising a tubular barrel 1, a flexible bearing 2 is arranged inside the tubular barrel 1, the flexible bearing 2 and the tubular barrel 1 are interference fit, a limiting protrusion 4 is arranged inside the tubular barrel 1 at the bottom of the flexible bearing 2, the limiting protrusion 4 has a protrusion height lower than the inner diameter of the flexible bearing 2, there are two limiting protrusions 4, which are mirror-imaged inside the tubular barrel 1, a bending anti-slipping mechanism 3 is arranged inside the tubular barrel 1 above the flexible bearing 2, the bending anti-slipping mechanism 3 comprises a first bending plate 301 and a second bending plate 302, one end of the first bending plate 301 and the second bending plate 302 are connected to the tubular barrel 1, and the two sides are not connected to the tubular barrel 1, the first bending plate 301 and the second bending plate 302 are connected between A gap is opened, and the bending anti-slip mechanism 3 has two locations and is mirror-imaged on the tubular column 1. A clamping groove 201 is opened on the outer side of the outer diameter of the flexible bearing 2. The bottom of the clamping groove 201 is a first plane 2011, and the side is a first inclined surface 2012. An anti-slip limiting mechanism 5 is provided on the tubular column 1 at a position relative to the clamping groove 201. The anti-slip limiting mechanism 5 includes a spring plate 501. The upper end of the spring plate 501 is connected to the tubular column 1, and the bottom does not contact the tubular column 1 on both sides. The spring plate 501 includes a second plane 5011 and a second inclined surface 5012. The second plane 5011 and the second inclined surface 5012 are inclined toward the inside of the tubular column 1. The second plane 5011 is in contact with the first plane 2011, and the second inclined surface 5012 is in contact with the first inclined surface 2012.

[0021] The working principle of the present invention: the bending anti-slip mechanism 3 on the tubular barrel 1 will not affect the outer diameter of the flexible bearing 2 in the default state. With the assistance of tooling, the flexible bearing 2 is placed at the mouth of the tubular barrel 1, and the flexible bearing 2 is pressed into the inside of the tubular barrel 1 by the electric cylinder. During the pressing process, when the bottom of the flexible bearing 2 contacts the second inclined surface 5012 of the spring plate 501, the spring plate 501 moves toward the outside of the tubular barrel 1 until the bottom of the flexible bearing 2 contacts the limiting protrusion 4. At this time, the spring plate 501 corresponds to the position of the clamping groove 201. At this time, the spring plate 501 will bounce into the inside of the clamping groove 201 again, thereby limiting the falling off of the flexible bearing 2. After that, tools are used to rivet the first bending plate 301 and the second bending plate 302 into the inside of the tubular barrel 1, and they cannot exceed the inner diameter of the flexible bearing 2, thereby reducing the hidden danger of the flexible bearing 2 falling off.

[0022] The mechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0023] Components not described in detail herein are prior art.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A riveted flexible bearing anti-slip mechanism, comprising a tubular column (1) and a flexible bearing (2), wherein the flexible bearing (2) is interference-fitted inside the tubular column (1), and is characterized in that: The inner wall of the tubular column (1) at the bottom of the flexible bearing (2) is provided with a limiting protrusion (4), and the inner wall of the tubular column (1) at the top of the flexible bearing (2) is provided with a bending anti-slip mechanism (3), the bending anti-slip mechanism (3) comprises a first bending plate (301) and a second bending plate (302), a gap is provided between the first bending plate (301) and the second bending plate (302), a clamping groove (201) is provided on the outer side of the outer diameter of the flexible bearing (2), an anti-slip limiting mechanism (5) matched with the clamping groove (201) is provided on the tubular column (1) at a position relative to the clamping groove (201), the anti-slip limiting mechanism (5) comprises a spring plate (501), and the spring plate (501) is offset toward the inside of the tubular column (1).

2. The anti-slip mechanism for a riveted flexible bearing according to claim 1, characterized in that: The limiting protrusions (4) are arranged in an annular array to the inside of the tubular column (1), and the protrusion height of the limiting protrusions (4) does not exceed the inner diameter of the flexible bearing (2).

3. The anti-slip mechanism for a riveted flexible bearing according to claim 1, characterized in that: One end of the first bending plate (301) and the second bending plate (302) is connected to the column barrel (1), and both sides of the first bending plate (301) and the second bending plate (302) are not connected to the column barrel (1).

4. The anti-slip mechanism for a riveted flexible bearing according to claim 1, characterized in that: The bottom of the clamping slot (201) is a first plane (2011), and the side of the clamping slot (201) is a first inclined surface (2012).

5. The anti-slip mechanism for a riveted flexible bearing according to claim 4, characterized in that: The spring plate (501) comprises a second plane (5011) and a second inclined surface (5012); the second plane (5011) contacts the first plane (2011); and the second inclined surface (5012) contacts the first inclined surface (2012).

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