Vibration stopping ring for electromagnetic damping shock absorber

Abstract

The utility model relates to the technical field of shock absorbers, in particular to a vibration stop ring for an electromagnetic damping shock absorber, which comprises a framework, a lip piece and a rubber body connecting the framework and the lip piece into a whole, the lip piece is provided with a through hole for a shaft to penetrate through, the lip piece is made of polytetrafluoroethylene (PTFE) materials, knurls are arranged on the inner surface of the through hole, and the rubber body is provided with a sealing ring. The device is composed of the framework, the rubber body and the lip piece, the framework and the lip piece are connected with the rubber body in a vulcanization mode through rubber vulcanization, the framework plays a supporting role, the rubber body absorbs high-frequency vibration generated in the radial direction of a shaft, the lip piece made of PTFE is in contact with the shaft, the friction coefficient can be reduced, and the service life of the device is prolonged. The knurls on the inner surface of the anti-vibration ring not only can further reduce the contact area of the lip piece and the shaft, but also can store lubricating grease, reduce friction and improve wear resistance, and the service life of the anti-vibration ring is prolonged while the anti-vibration effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field especially relates to a vibration ring for electromagnetic damping shock absorber. BACKGROUND

[0002] The shock absorber is an important part on the vehicle, and is directly related to the comfort of the vehicle, the electromagnetic damping shock absorber adjusts the damping by using magneto rheological fluid or electromagnetic valve technology, compared with the traditional hydraulic shock absorber, the response time is fast, the linear continuous adjustment of damping force is realized by the intensity of electromagnetic field or the size of current, there is no step limit of traditional hydraulic valve, the complex hydraulic pipeline is not needed, the risk of liquid leakage is reduced, the electromagnetic component is small in size and low in quality, and the control flexibility is improved. UTILITY MODEL CONTENT

[0003] Technical purpose: in order to overcome the insufficient of prior art, the utility model provides a vibration ring for electromagnetic damping shock absorber.

[0004] Technical scheme: in order to realize the above object, the utility model discloses a vibration ring for electromagnetic damping shock absorber, including framework, lip piece and the rubber body that is connected as a whole with the framework and lip piece, the lip piece is equipped with the through hole for the shaft, the lip piece is PTFE material, the inner surface of the through hole is equipped with knurling.

[0005] Preferably, the knurling is in the form of a grid, the length of each grid is 1mm, and the grid line is engraved to a depth of 0.1-0.2mm.

[0006] Preferably, the lip piece is annular, and the two inner ends of the through hole are provided with a bevel.

[0007] Preferably, the framework is L-shaped in cross section, the rubber body is provided with a cladding portion, a connecting portion, and an inner cavity penetrating the cladding portion and the connecting portion and connected to the outer wall of the lip piece, the cladding portion is semi-enclosed to the long side of the framework, and the first end of the cladding portion is flush with the short side of the framework.

[0008] Preferably, the inner cavity is provided with a transition fillet at the two ends connected to the lip piece.

[0009] Preferably, the outer end of the long side is provided with a plurality of convex columns at the connection with the cladding portion.

[0010] Preferably, the number of convex columns is four, which are evenly distributed on the outer end of the long side.

[0011] The utility model has the advantages of:

[0012] This device consists of a skeleton, a rubber body, and a lip. The skeleton and lip are connected to the rubber body by vulcanization. The skeleton provides support, the rubber body absorbs high-frequency vibrations generated radially by the shaft, and the PTFE lip contacts the shaft, reducing the coefficient of friction. The knurling on its inner surface not only further reduces the contact area between the lip and the shaft but also stores grease, reducing friction and improving wear resistance. This ensures the vibration damping effect while extending the service life of the vibration damping ring. Attached Figure Description

[0013] Figure 1 This is a partial sectional view of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the lip piece of this utility model.

[0015] In the figure, 1 is the skeleton; 101 is the long side; 102 is the short side; 2 is the rubber body; 201 is the covering part; 202 is the connecting part; 203 is the inner cavity; 204 is the first end; 3 is the lip; 4 is the through hole; 5 is the knurling; 6 is the bevel; 7 is the transition fillet; 8 is the protruding post. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1 To be continued Figure 2 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0017] A vibration damping ring for an electromagnetic damping vibration absorber, such as Figures 1-2 As shown, it includes a skeleton 1, a lip 3, and a rubber body 2 that connects the skeleton 1 and the lip 3 into one piece. The skeleton 1 has an L-shaped cross section. The rubber body 2 has a covering part 201, a connecting part 202, and an inner cavity 203 that penetrates the covering part 201 and the connecting part 202 and connects to the outer wall of the lip 3. In order to ensure the vulcanization connection effect, the inner cavity 203 has a transition fillet 7 at both ends connected to the lip 3, which can realize a smooth transition connection between the ends of the rubber body 2 and the lip 3.

[0018] The covering part 201 is semi-enclosed and connected to the long side 101 of the skeleton 1, and its first end 204 is flush with the short side 102 of the skeleton 1. In order to ensure the connection strength between the covering part 201 and the long side 101 and to prevent the glue shortage, a number of protrusions 8 are provided at the connection point between the long side 101 and the covering part 201. In this embodiment, the protrusions 8 are cylindrical in shape, and there are four protrusions 8, which are evenly distributed around the circumference of the long side 101. Of course, in order to ensure the connection effect, the number of protrusions 8 can be more or less distributed around the circumference, as long as the connection effect is guaranteed.

[0019] In the embodiment, the material of the framework 1 is a hard metal known in the art, which mainly plays a supporting role in work, and the material of the rubber body 2 is rubber known in the art, which is used to absorb high-frequency vibrations generated in the radial direction of the shaft. The lip piece 3 is provided with a through hole 4 for the shaft of the electromagnetic damping shock absorber to pass through, in the embodiment, the lip piece 3 is annular, and the two inner ends of the through hole 4 are provided with bevels 6, which facilitate the smooth centering and penetration of the shaft during installation. In the working process, the shaft of the electromagnetic damping shock absorber reciprocates in the through hole 4, in order to reduce the friction coefficient between the through hole 4 and the shaft, the lip piece 3 is made of PTFE as a whole, and in order to further reduce the contact area between the through hole 4 and the shaft and reduce the friction, the inner surface of the through hole 4 is provided with knurls 5, the knurls 5 are in a grid type, the length of each grid is 1mm, the grid lines are engraved to a depth of 0.1-0.2mm, the grid lines can be coated with stored lubricating grease, which further reduces the friction in the working process, improves the overall wear resistance, and prolongs the service life.

[0020] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A damper ring for an electromagnetic damper, characterized in that: The utility model relates to a lip seal, including skeleton (1), lip piece (3) and the rubber body (2) of connecting skeleton (1) and lip piece (3) as a whole, lip piece (3) is equipped with the through hole (4) for shaft, lip piece (3) is PTFE material, the inner surface of through hole (4) is equipped with knurl (5).

2. The damper ring for an electromagnetic damper according to claim 1, characterized in that: The knurl (5) is in grid type, and the length of each grid is 1mm, and the grid line is engraved to 0.1-0.2mm.

3. The damper ring for an electromagnetic damper according to claim 1, characterized in that: The lip piece (3) is annular, and the two inner ends of the through hole (4) are provided with bevels (6).

4. The anti-race ring for an electromagnetic damper as set forth in claim 1, wherein: The skeleton (1) is L-shaped in cross section, the rubber body (2) is provided with a cladding portion (201), a connecting portion (202), and an inner cavity (203) penetrating the cladding portion (201) and the connecting portion (202) and connected with the outer wall of the lip piece (3), the cladding portion (201) is semi-surrounding connected to the long side (101) of the skeleton (1), and the first end portion (204) is flush with the short side (102) of the skeleton (1).

5. The snubber ring for an electromagnetic damper according to claim 4, characterized in that: The inner cavity (203) is provided with a transition fillet (7) at both ends connected with the lip piece (3).

6. The damper ring for an electromagnetic damper according to claim 5, characterized in that: The outer end of the long side (101) is provided with a plurality of convex columns (8) at the connection with the cladding portion (201).

7. The damper ring for an electromagnetic damper according to claim 6, characterized in that: The number of convex columns (8) is four, which are evenly distributed on the outer end of the long side (101).

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