CN211715638U - Guide sealing assembly of oil pressure shock absorber for high-speed motor car - Google Patents
Guide sealing assembly of oil pressure shock absorber for high-speed motor car Download PDFInfo
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- CN211715638U CN211715638U CN201922476250.3U CN201922476250U CN211715638U CN 211715638 U CN211715638 U CN 211715638U CN 201922476250 U CN201922476250 U CN 201922476250U CN 211715638 U CN211715638 U CN 211715638U
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Abstract
The utility model relates to a high-speed oil damper's for motor car direction seal assembly mainly includes: the oil seal device comprises a guide seat, an oil seal pressing ring, a follow-up oil seal, an oil seal hoop and an oil seal retainer ring. The utility model discloses a configuration optimization reduces the part, and direction seal assembly axial dimension can reduce, but its advantage of full play in practical application.
Description
Technical Field
The utility model relates to an oil pressure shock absorber technical field for rail vehicle, concretely relates to oil pressure shock absorber's direction seal assembly for high-speed motor car.
Background
A typical guide seal assembly of a dual-cycle oleo-dynamic damper at present is shown in fig. 1, and an axial structural dimension L (one of the lengths is 54mm) of the guide seal assembly of the type is longer than those of guide seal assemblies of other types, occupies a longer axial space in the damper, limits the arrangement of the maximum length and the minimum length of the damper, sacrifices partial stroke of the damper, and even sometimes cannot meet the requirements of customers, so that the guide seal assembly is often in a disadvantage in the selection of a damper scheme. The contact length L2 of the piston rod and the guide seat is not too small, and the contact length L2 restrains the piston rod in the radial direction and plays a role in guiding in the axial direction; the follow-up oil seal in the assembly structure occupies a longer axial dimension, in order to realize the follow-up function, the lower part of the follow-up oil seal is designed into a corrugated structure and can be compressed or folded, L1 in the figure is the stroke of the follow-up oil seal, and when the piston rod works, as long as the stroke does not exceed L1, the follow-up oil seal and the follow-up oil seal do not move relatively, so that the abrasion is reduced, and other types of oil seals are short in axial dimension and do not have the follow-up function. The reason why the axial dimension of the guide sealing assembly with follow-up function is long is that the oil seal stroke L1 and the guide length L2 are simply added, and a vacant length L3 exists between L1 and L2, so that the improvement is difficult due to the limitation of radial space.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provided a direction seal assembly of oil damper for high-speed motor car, through configuration optimization, reduced the part, direction seal assembly axial dimension can reduce, can full play its advantage at practical application.
For solving one of above-mentioned technical problem at least, the utility model discloses the technical scheme who takes is:
a guide seal assembly of an oil damper for a high speed motor vehicle, comprising: a guide seat, an oil seal pressing ring, a follow-up oil seal, an oil seal hoop and an oil seal retainer ring,
a boss is arranged in the middle of the upper end of the guide seat, and the follow-up oil seal sleeve is connected to the boss;
the oil seal pressing ring is sleeved on the servo oil seal and used for axially and radially compressing and limiting the lower end of the servo oil seal;
the oil seal hoop is sleeved outside the upper end of the follow-up oil seal and used for radially compressing and limiting the upper end of the follow-up oil seal;
the oil seal retainer ring is sleeved outside the servo oil seal, the upper end of the oil seal retainer ring axially compresses and limits the upper end of the servo oil seal, and the lower end of the oil seal retainer ring compresses the oil seal pressing ring.
Furthermore, an oil return pipeline is further arranged on the guide seat and comprises a vertical part and a horizontal part which are communicated, the vertical part is communicated with the follow-up oil seal, and the horizontal part is communicated with an oil storage cylinder of the oil pressure vibration absorber and is used for returning hydraulic oil in the follow-up oil seal to the oil storage cylinder.
Further, the method also comprises the following steps: the outer cylinder nut is sleeved outside the oil seal retaining ring and connected with the oil storage cylinder to compress the oil seal retaining ring, the O-shaped ring is sleeved outside the groove formed in the outer side of the upper end of the guide seat, and the O-shaped ring is arranged at the lower end of the oil seal pressing ring.
Furthermore, the lower end of the guide seat is provided with a step hole which is used for being sleeved outside a pressure cylinder of the oil pressure shock absorber.
Furthermore, an inner hole is formed in the middle of the guide seat and used for installing a piston rod of the oil pressure shock absorber.
Furthermore, the follow-up oil seal is of a corrugated structure.
Furthermore, the oil seal retainer ring is of a structure shaped like a Chinese character 'ji'.
The beneficial effects of the utility model include at least: the utility model discloses optimize prior art's direction seal assembly by simple L1+ L2+ L3's relation (see fig. 1), realized L1 and L2 partial overlap, space utilization has been improved, the axial dimension that obviously reduces, the axial of subassembly becomes L1 and L2, L3 has been omitted, its axial length L obtains obviously shortening (for example axial length is 40.5 mm) for prior art, the design condition obtains very big improvement, the at utmost satisfies customer's designing requirement; and the structure is optimized, the guide sealing assembly and related parts are simplified, and the manufacturing cost and the process difficulty are reduced.
Drawings
FIG. 1 is a schematic view of a prior art oleo guide seal assembly.
Fig. 2 is the structure schematic diagram of the guiding sealing assembly of the present invention.
The oil seal structure comprises a guide seat 1, a first boss 101, a second boss 102, an oil return pipeline 103, a groove 104, a stepped hole 105, an oil seal pressing ring 2, a follow-up oil seal 3, an oil seal hoop 4, an oil seal retainer ring 5, an outer cylinder nut 6, an O-shaped ring 7, an outer cylinder body 8 of an oil storage cylinder, a pressure cylinder 9 and a piston rod 10.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following specific embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
Fig. 1 is a schematic structural diagram of a guide seal assembly of a prior art oil hydraulic shock absorber, and for the description of fig. 1, reference is made to the background art, and details are not repeated here.
Example 1: fig. 2 is the utility model discloses direction seal assembly schematic structure, refer to fig. 2, the utility model provides a direction seal assembly of oil damper for high-speed motor car mainly includes: the oil seal device comprises a guide seat, an oil seal pressing ring, a follow-up oil seal, an oil seal hoop, an oil seal retainer ring, an outer cylinder nut and an O-shaped ring.
The upper end of the guide seat is provided with a first boss, the servo oil seal is sleeved on the first boss, and more particularly, the upper end of the guide seat is further provided with a second boss, and the second boss and the first boss form a groove for accommodating and placing the lower end of the servo oil seal.
And an oil return pipeline is further arranged on the guide seat and comprises a vertical part and a horizontal part which are communicated, the vertical part is communicated with the follow-up oil seal, and the horizontal part is communicated with an oil storage cylinder of the oil pressure shock absorber and is used for returning hydraulic oil in the follow-up oil seal to the oil storage cylinder.
The lower end of the guide seat is provided with a step hole which is used for being sleeved outside the outer end face of the pressure cylinder of the oil pressure shock absorber to enable the end faces of the guide seat and the pressure cylinder to be in contact and seal. And an inner hole is formed in the middle of the guide seat and is in sliding fit with a piston rod of the oil pressure shock absorber to play a role in guiding.
The oil seal pressing ring is sleeved outside the servo oil seal and located on the second boss, and is used for axially and radially compressing and limiting the lower end of the servo oil seal.
The servo oil seal is of a corrugated structure and can be compressed or folded, a first boss extending out of the middle of the guide seat can be accommodated in an inner hole of the servo oil seal, and when the servo oil seal is compressed, the upper end of the servo oil seal is in contact with the upper end face of the first boss to move and limit.
The oil seal hoop is sleeved outside the upper end of the follow-up oil seal and used for radially compressing and limiting the upper end of the follow-up oil seal.
The oil seal retainer ring is sleeved outside the servo oil seal, the upper end of the oil seal retainer ring axially compresses and limits the upper end of the servo oil seal, and the lower end of the oil seal retainer ring compresses the oil seal pressing ring. In the embodiment of the present invention, the oil seal retaining ring is preferably of a structure like a Chinese character 'ji', and the upper end of the oil seal retaining ring is used for limiting during the servo oil seal stretching process.
The outer cylinder nut is sleeved outside the oil seal retaining ring and connected with the oil storage cylinder to compress the oil seal retaining ring, the O-shaped ring is sleeved outside the groove formed in the outer side of the upper end of the guide seat, and the O-shaped ring is arranged at the lower end of the oil seal pressing ring.
To sum up, the utility model discloses optimize prior art's direction seal assembly by simple L1+ L2+ L3's relation (see fig. 1), realized L1 and L2 partial overlap, improved space utilization, show and reduce axial dimension, the axial of subassembly becomes L1 and L2, left out L3, its axial length L obtains obviously shortening (for example axial length is 40.5 mm) for prior art, the design condition obtains very big improvement, furthest satisfies customer's designing requirement; and the structure is optimized, the guide sealing assembly and related parts are simplified, and the manufacturing cost and the process difficulty are reduced.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations can be made in the above embodiments by those skilled in the art without departing from the scope of the present invention, and that various changes in the detailed description and applications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. A guide seal assembly of an oil damper for a high-speed motor car, comprising: a guide seat, an oil seal pressing ring, a follow-up oil seal, an oil seal hoop and an oil seal retainer ring,
a boss is arranged in the middle of the upper end of the guide seat, and the follow-up oil seal sleeve is connected to the boss;
the oil seal pressing ring is sleeved on the servo oil seal and used for axially and radially compressing and limiting the lower end of the servo oil seal;
the oil seal hoop is sleeved outside the upper end of the follow-up oil seal and used for radially compressing and limiting the upper end of the follow-up oil seal;
the oil seal retainer ring is sleeved outside the servo oil seal, the upper end of the oil seal retainer ring axially compresses and limits the upper end of the servo oil seal, and the lower end of the oil seal retainer ring compresses the oil seal pressing ring.
2. The guide seal assembly according to claim 1, wherein the guide seat is further provided with an oil return pipeline, the oil return pipeline comprises a vertical part and a horizontal part which are communicated with each other, the vertical part is communicated with the follower oil seal, and the horizontal part is communicated with an oil storage cylinder of the oil pressure vibration absorber and is used for returning hydraulic oil in the follower oil seal to the oil storage cylinder.
3. The pilot seal assembly of claim 2, further comprising: the outer cylinder nut is sleeved outside the oil seal retaining ring and connected with the oil storage cylinder to compress the oil seal retaining ring, the O-shaped ring is sleeved outside the groove formed in the outer side of the upper end of the guide seat, and the O-shaped ring is arranged at the lower end of the oil seal pressing ring.
4. The pilot seal assembly of claim 1 wherein the lower end of the pilot carrier is provided with a stepped bore for receiving externally the pressure tube of the oleo damper.
5. The pilot seal assembly of claim 1 wherein the pilot carrier has an internal bore in a central portion thereof for receiving a piston rod of the oleo damper.
6. The pilot seal assembly of claim 1, wherein the follower oil seal is corrugated in construction.
7. The pilot seal assembly of claim 1 wherein said oil seal retainer is of a "dog-leg" configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476250.3U CN211715638U (en) | 2019-12-31 | 2019-12-31 | Guide sealing assembly of oil pressure shock absorber for high-speed motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476250.3U CN211715638U (en) | 2019-12-31 | 2019-12-31 | Guide sealing assembly of oil pressure shock absorber for high-speed motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715638U true CN211715638U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922476250.3U Active CN211715638U (en) | 2019-12-31 | 2019-12-31 | Guide sealing assembly of oil pressure shock absorber for high-speed motor car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715638U (en) |
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2019
- 2019-12-31 CN CN201922476250.3U patent/CN211715638U/en active Active
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Address after: No. 8052, Yuanshan international road, 100d2, Zhongshan District, Guangdong Province Patentee after: Shenzhen Yecheng Industrial Co.,Ltd. Address before: No. 8052, Yuanshan international road, 100d2, Zhongshan District, Guangdong Province Patentee before: SHENZHEN ZHONGCHE YECHENG INDUSTRIAL Co.,Ltd. |