CN211648899U - Low-noise automobile shock-absorbing floating piston - Google Patents
Low-noise automobile shock-absorbing floating piston Download PDFInfo
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- CN211648899U CN211648899U CN201921976966.3U CN201921976966U CN211648899U CN 211648899 U CN211648899 U CN 211648899U CN 201921976966 U CN201921976966 U CN 201921976966U CN 211648899 U CN211648899 U CN 211648899U
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- floating piston
- ring groove
- limiting ring
- automobile shock
- guide ring
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Abstract
The low-noise automobile shock absorption floating piston comprises a floating piston main body, wherein a first limiting ring groove and a second limiting ring groove are formed in the outer wall of the floating piston main body, a guide ring is embedded into the first limiting ring groove, a sealing ring is embedded into the second limiting ring groove, the guide ring is used for reducing the friction coefficient of the floating piston main body and a cylinder barrel, and the sealing ring is used for separating an oil storage chamber and an air storage chamber; the utility model utilizes the contact of the guide ring and the cylinder barrel, which can reduce the friction coefficient of the floating piston, improve the motion smoothness of the floating piston and reduce the noise of the shock absorber during working; the floating piston is made of aluminum, so that the friction coefficient can be reduced on the basis of ensuring the strength of the floating piston; the guide ring is made of plastic materials, and the friction coefficient of the plastic materials is lower than that of aluminum materials, so that the friction force is further reduced, and the noise is further reduced.
Description
Technical Field
The utility model belongs to the technical field of automobile shock absorber ware accessory processing, in particular to low noise type automobile shock attenuation floating piston.
Background
The shock absorber consists of a piston valve and a bottom valve which generate damping force, a cylinder body and a storage pipe which store oil and gas (air), a connecting rod which transmits the motion of the vehicle body and an oil seal which prevents the leakage of the internal gas or oil; moreover, based on the piston valve, the upper part is called a piston movable connection upper chamber, and the lower part is called a piston lower chamber, a storage pipe and a cylinder; the space between the bodies is called a storage chamber; the upper chamber of the piston is always filled with oil, the lower layer of the storage chamber is filled with oil, and the upper layer is filled with air or gas (nitrogen);
the floating piston is arranged at the lower part of the cylinder barrel, and a closed air chamber formed by the floating piston and one end of the cylinder barrel is filled with high-pressure nitrogen; the floating piston is provided with an O-shaped sealing ring with a large section, and the O-shaped sealing ring completely separates oil and gas;
the existing floating piston is mainly made of iron, although the strength of the piston is high, the friction coefficient between the piston and a cylinder barrel is large, the floating piston collides violently during movement, and the noise is large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists provides low noise type automobile shock attenuation floating piston, and concrete technical scheme is as follows:
low noise type automobile shock attenuation floating piston, including the floating piston main part, first spacing annular and second spacing annular have been seted up to the outer wall of floating piston main part, the inside embedding of first spacing annular has the guide ring, the inside embedding of second spacing annular has the sealing washer, the guide ring is used for reducing the coefficient of friction of floating piston main part and cylinder, the sealing washer is used for separating oil storage chamber and gas receiver.
Furthermore, the first limiting ring groove and the second limiting ring groove are arranged at intervals, and the cross-sectional shapes of the first limiting ring groove and the second limiting ring groove are both rectangular.
Furthermore, the depth of the first limiting ring groove is the same as that of the second limiting ring groove, and the width of the first limiting ring groove is the same as that of the second limiting ring groove.
Furthermore, the outer side surface of the sealing ring is of an outer convex cambered surface structure, and the section of the inner side of the sealing ring is of a plane structure.
Furthermore, the outer side section of the guide ring is of an outer convex cambered surface structure, and the inner side section of the guide ring is of a plane structure.
Furthermore, the two end faces of the guide ring comprise a first combining face and a second combining face, the first combining face and the second combining face are glued into a whole, and the first combining face and the second combining face are both of inclined face structures.
Furthermore, a reinforcing groove is formed in the first combining surface, a matching head is arranged at the end of the second combining surface, and the matching head is embedded into the reinforcing groove.
Furthermore, the floating piston main body is made of aluminum materials, the guide ring is made of plastic materials, and the sealing ring is made of rubber materials.
Further, the matching head is T-shaped or conical.
The utility model has the advantages that:
1. the guide ring is contacted with the cylinder barrel, so that the friction coefficient of the floating piston can be reduced, the moving smoothness of the floating piston is improved, and the noise of the shock absorber during working can be reduced;
2. the floating piston is made of aluminum, so that the friction coefficient can be reduced on the basis of ensuring the strength of the floating piston; the guide ring is made of plastic materials, and the friction coefficient of the plastic materials is lower than that of aluminum materials, so that the friction force is further reduced, and the noise is further reduced.
Drawings
FIG. 1 is a schematic view of the structure of a low-noise type automobile damping floating piston of the present invention;
fig. 2 shows a schematic view of the floating piston mounting structure of the present invention;
FIG. 3 shows an enlarged schematic view of FIG. 2 at A;
fig. 4 is a first connection state diagram of the first and second joint surfaces of the present invention;
fig. 5 is a schematic view illustrating a second connection state of the first and second joint surfaces according to the present invention;
shown in the figure: 1. the floating piston comprises a floating piston main body, 11, a first limiting ring groove, 12, a second limiting ring groove, 2, a guide ring, 21, a first combining surface, 211, a reinforcing groove, 22, a second combining surface, 221, a matching head, 3, a sealing ring, 4, a cylinder barrel, 41, an oil storage chamber, 42, an air storage chamber, 5, a piston rod, 6 and a working piston.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The low-noise automobile shock absorption floating piston comprises a floating piston main body 1, wherein a first limiting ring groove 11 and a second limiting ring groove 12 are formed in the outer wall of the floating piston main body 1, a guide ring 2 is embedded in the first limiting ring groove 11, a sealing ring 3 is embedded in the second limiting ring groove 12, the guide ring 2 is used for reducing the friction coefficient of the floating piston main body 1 and a cylinder barrel 4, and the sealing ring 3 is used for separating an oil storage chamber 41 and an air storage chamber 42; the guide ring 2 is used to reduce the friction coefficient, improve the moving smoothness of the floating piston, and reduce the noise.
As an improvement of the above technical solution, the first limiting ring groove 11 and the second limiting ring groove 12 are arranged at intervals, and the cross-sectional shapes of the first limiting ring groove 11 and the second limiting ring groove 12 are both rectangular; two spacing ring grooves are arranged at intervals for embedding the sealing ring 3 and the guide ring 2.
As an improvement of the above technical solution, the depth of the first retainer ring groove 11 is the same as the depth of the second retainer ring groove 12, and the width of the first retainer ring groove 11 is the same as the width of the second retainer ring groove 12; the depth is the same, the width is the same for the setting of each spacing annular in the aspect of, need not to change manufacturing procedure again.
As an improvement of the above technical scheme, the outer side surface of the sealing ring 3 is of an outer convex cambered surface structure, and the inner side section of the sealing ring 3 is of a plane structure; the convex cambered surface is used for improving the fluidity of the contact between the sealing ring 3 and the inner wall of the cylinder barrel and reducing the contact surface, thereby reducing the friction force borne by the sealing ring 3, prolonging the service life and ensuring the sealing performance; the inner section is a plane to improve the fit tightness of the sealing ring 3 and the second limiting ring groove 12, no gap exists between the sealing ring 3 and the limiting ring groove, the resistance borne by the sealing ring 3 is larger, and the sealing performance of the sealing ring 3 is improved; traditional sealing ring 3 all adopts O type circle, and it is convex arc surface inside and outside it, can lead to gapped between sealing ring and the spacing annular like this, and the leakproofness is not enough, and at the in-process of long-term atress, because the resistance that receives from top to bottom is big inadequately, therefore easy emergence is out of shape, and sealing performance descends.
As an improvement of the above technical solution, the outer side section of the guide ring 2 is of an outer convex cambered surface structure, and the inner side section of the guide ring 2 is of a plane structure; the convex cambered surface is used for improving the contact smoothness of the guide ring 2 and the inner wall of the cylinder barrel 1 and reducing the contact surface, thereby further reducing the friction coefficient and the noise; the inner section is the plane and is used for improving the laminating compactness of guide ring 2 and first spacing annular 11, improves the installation intensity.
As an improvement of the above technical solution, two end surfaces of the guide ring 2 include a first combining surface 21 and a second combining surface 22, the first combining surface 21 and the second combining surface 22 are glued into a whole, and both the first combining surface 21 and the second combining surface 22 are of an inclined surface structure; the first combining surface 21 and the second combining surface 22 are utilized to realize that the guide ring 2 which cannot be deformed is firstly placed on the first limiting ring groove 11 in a broken state, after the first combining surface 21 and the second combining surface 22 are glued together, the broken guide ring 2 can be converted into an integral structure, and the guide ring 2 can be stably sleeved on the first limiting ring groove 11; the inclined plane structure is used for increasing the combination area and improving the connection strength.
As an improvement of the above technical solution, a reinforcing groove 211 is formed in the first combining surface 21, a fitting head 221 is arranged at an end of the second combining surface 22, and the fitting head 221 is embedded in the reinforcing groove 211; by utilizing the matching head 221 and the reinforcing groove 211, on one hand, the first combining surface 21 and the second combining surface 22 can be quickly matched together, so that the matching precision is improved, the first combining surface 21 and the second combining surface 22 are prevented from being staggered, on the other hand, the connecting surface of the first combining surface 21 and the second combining surface 22 can be further increased, and the strength is improved.
As an improvement of the above technical solution, the floating piston body 1 is made of aluminum material; the aluminum material can reduce the friction coefficient on the basis of ensuring the strength of the floating piston; the guide ring 2 is made of plastic materials, and the friction coefficient of the plastic materials is lower than that of aluminum materials, so that the friction force and the noise are further reduced; the sealing ring 3 is made of rubber materials.
As an improvement of the above technical solution, the fitting head 221 is T-shaped or conical; the matching head 221 is high in structural strength and simple and convenient to assemble when in a T shape; the conical shape is simple and convenient to assemble and process.
As shown in fig. 2, fig. 2 shows a schematic view of the installation structure of the floating piston of the present invention;
the floating piston main body 1 is arranged in the cylinder barrel 4, the top of the floating piston main body 1 is an oil storage chamber 41, and the bottom of the floating piston main body 1 is an air storage chamber 42;
a piston rod 5 is arranged in the cylinder barrel 4, the bottom end of the piston rod 5 is connected with a working piston 6, and the piston rod 5 and the working piston 6 are both arranged at the top of the floating piston main body 1;
the upper part of the side wall of the floating piston main body 1 is provided with a first limit ring groove 11, and the lower part of the side wall is provided with a second limit ring groove 12;
the inside embedding of first spacing annular 11 has guide ring 2, and the inside embedding of second spacing annular 12 has sealing washer 3.
As shown in fig. 3, fig. 3 shows an enlarged schematic view of a of fig. 2;
the inner end faces of the sealing ring 3 and the guide ring 2 are of a plane structure, the outer end face of the sealing ring is of a cambered surface structure, and the cambered surface structure is attached to the inner wall of the cylinder barrel 4.
Fig. 4 is a first connection state diagram of the first and second joint surfaces of the present invention;
the matching head 221 is T-shaped, the reinforcing groove 211 is a T-shaped matched groove, and the two grooves can be mutually pulled, so that the connecting strength is improved.
Fig. 5 is a schematic view illustrating a second connection state of the first and second joint surfaces according to the present invention;
the matching head 221 is triangular, the reinforcing groove 211 is a matched triangular groove, the matching head and the reinforcing groove can be quickly matched, and the processing is simple and convenient.
The manufacturing method of the low-noise automobile shock absorption floating piston comprises the following steps:
s1, preparing the floating piston main body 1:
pouring the aluminum liquid into a casting mold;
cooling and forming to prepare a cylindrical raw material column;
a first limiting ring groove 11 and a second limiting ring groove 12 are formed in the raw material column by using a lathe to manufacture a floating piston main body 1; the step is used for manufacturing the floating piston main body 1 by using aluminum liquid, so that the friction coefficient of the floating piston main body 1 is reduced on the basis of ensuring the processing strength;
s2, mounting the guide ring 2:
cutting off the guide ring 2 made of plastic material to form a first combining surface 21 and a second combining surface 22 in the shape of inclined planes;
sleeving the fractured guide ring 2 on a first limiting ring groove 11;
the first combining surface 21 and the second combining surface 22 are glued together, so that the broken guide ring 2 forms the guide ring 2 with an integral structure; the step is used for sleeving the guide ring 2 on the first limiting ring groove 11 to realize the noise reduction effect;
specifically, the fitting head 211 and the reinforcing groove 221 are relatively inserted together, so that the first combining surface 21 and the second combining surface 22 are aligned and are not staggered, and the connection precision is ensured; after the preliminary positioning connection is finished, coating strong adhesive glue on the joint of the joint surfaces, and bonding the disconnected joint surfaces into a whole;
the guide ring 2 of the integrated structure is tightly sleeved in the first limiting ring groove 11;
s3, sleeving the sealing ring 3 on the second limiting ring groove 12; the sealing ring 3 is made of rubber materials, has a certain deformation effect and can be directly sleeved on the second limiting ring groove 12.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. Low noise type automobile shock attenuation floating piston, its characterized in that: including floating piston main part (1), first spacing annular (11) and second spacing annular (12) have been seted up to the outer wall of floating piston main part (1), the inside embedding of first spacing annular (11) has guide ring (2), the inside embedding of second spacing annular (12) has sealing washer (3), guide ring (2) are used for reducing the coefficient of friction of floating piston main part (1) and cylinder (4), sealing washer (3) are used for separating oil storage chamber (41) and reservoir (42).
2. The low noise type automobile shock-absorbing floating piston according to claim 1, wherein: the first limiting ring groove (11) and the second limiting ring groove (12) are arranged at intervals, and the cross section of the first limiting ring groove (11) and the cross section of the second limiting ring groove (12) are both rectangular.
3. The low noise type automobile shock-absorbing floating piston according to claim 2, wherein: the depth of the first limiting ring groove (11) is the same as that of the second limiting ring groove (12), and the width of the first limiting ring groove (11) is the same as that of the second limiting ring groove (12).
4. The low noise type automobile shock-absorbing floating piston according to claim 1, wherein: the outer side surface of the sealing ring (3) is of an outer convex cambered surface structure, and the section of the inner side of the sealing ring (3) is of a plane structure.
5. The low-noise type automobile shock-absorbing floating piston according to claim 1 or 4, wherein: the outer side section of the guide ring (2) is of an outer convex cambered surface structure, and the inner side section of the guide ring (2) is of a plane structure.
6. The low noise type automobile shock-absorbing floating piston according to claim 5, wherein: the two end faces of the guide ring (2) comprise a first combining face (21) and a second combining face (22), the first combining face (21) and the second combining face (22) are glued into a whole, and the first combining face (21) and the second combining face (22) are both of an inclined face structure.
7. The low noise type automobile shock absorption floating piston according to claim 6, wherein: the first combining surface (21) is internally provided with a reinforcing groove (211), the end part of the second combining surface (22) is provided with a matching head (221), and the matching head (221) is embedded in the reinforcing groove (211).
8. The low noise type automobile shock-absorbing floating piston according to claim 7, wherein: the matching head (221) is T-shaped or conical.
9. The low noise type automobile shock-absorbing floating piston according to claim 1, wherein: the floating piston is characterized in that the floating piston main body (1) is made of an aluminum material, the guide ring (2) is made of a plastic material, and the sealing ring (3) is made of a rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921976966.3U CN211648899U (en) | 2019-11-15 | 2019-11-15 | Low-noise automobile shock-absorbing floating piston |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921976966.3U CN211648899U (en) | 2019-11-15 | 2019-11-15 | Low-noise automobile shock-absorbing floating piston |
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| CN211648899U true CN211648899U (en) | 2020-10-09 |
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| CN201921976966.3U Active CN211648899U (en) | 2019-11-15 | 2019-11-15 | Low-noise automobile shock-absorbing floating piston |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985586A (en) * | 2019-11-15 | 2020-04-10 | 宣城协盈汽车零部件科技有限公司 | Low-noise automobile shock-absorbing floating piston and manufacturing method thereof |
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2019
- 2019-11-15 CN CN201921976966.3U patent/CN211648899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985586A (en) * | 2019-11-15 | 2020-04-10 | 宣城协盈汽车零部件科技有限公司 | Low-noise automobile shock-absorbing floating piston and manufacturing method thereof |
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