CN212775316U - Oil pressure shock absorber protection cover for high-speed motor train unit - Google Patents
Oil pressure shock absorber protection cover for high-speed motor train unit Download PDFInfo
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- CN212775316U CN212775316U CN202020701435.XU CN202020701435U CN212775316U CN 212775316 U CN212775316 U CN 212775316U CN 202020701435 U CN202020701435 U CN 202020701435U CN 212775316 U CN212775316 U CN 212775316U
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- shock absorber
- connecting part
- groove
- oil pressure
- pressure shock
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Abstract
The utility model provides an oil pressure shock absorber safety cover for high-speed EMUs relates to oil pressure shock absorber technical field for rail vehicle, include: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part. The utility model discloses safety cover connecting portion adopt whole screw thread formula structure, and other positions adopt thin steel pipe and connecting portion welded structure, make it satisfy the shock absorber quality control requirement.
Description
Technical Field
The utility model belongs to the technical field of oil hydraulic shock absorber for rail vehicle, concretely relates to oil hydraulic shock absorber safety cover for high-speed EMUs.
Background
The oil pressure vibration absorber for the rail vehicle is used for reducing vehicle suspension vibration, ensuring that the rail vehicle safely and stably runs on a line, and improving the riding comfort of passengers. The oil pressure shock absorber absorbs vibration and energy during reciprocating motion and is realized by connecting a piston rod with an internal damping system and an external vibration source, so that the damage of the piston rod can cause the failure of a sealing system of the shock absorber to cause oil leakage; the protective cover is used for protecting the piston rod of the oil pressure shock absorber to prevent the piston rod from being impacted by stones and foreign matters, the anti-snaking protective cover commonly used at present is fixed by small bolts uniformly distributed on the circumference as shown in figure 1, but the small bolts have the risk of falling when being impacted by larger foreign matters and the shock absorber per se, so that the piston rod is not protected, and the small bolts falling on a track have certain danger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provided a high-speed oil pressure shock absorber safety cover for EMUs, safety cover connecting portion adopt whole screw thread formula structure, and other positions adopt thin steel pipe and connecting portion welded structure, make it satisfy the shock absorber quality control requirement.
For solving one of above-mentioned technical problem at least, the utility model discloses the technical scheme who takes is:
the utility model provides a high-speed is oil damper safety cover for EMUs, includes: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part.
Further, the groove is a welding seam groove, and the connecting part is fixedly connected with the body through welding.
Furthermore, the thread matching part is also provided with thread fastening glue, so that the reliability of threaded connection is ensured.
Further, the body is made of thin steel pipe materials.
The beneficial effects of the utility model include at least: the utility model discloses safety cover connecting portion adopt whole screw thread formula structure, avoid the risk of traditional screw inefficacy, and other positions adopt thin steel pipe and connecting portion welded structure, make it satisfy the shock absorber quality control requirement.
Drawings
Fig. 1 is a schematic view of a prior art boot assembly.
Fig. 2 is a schematic view of the protective cover of the present invention.
Fig. 3 is the assembly schematic diagram of the protection cover of the present invention.
The bolt 1, the protective cover 2, the connecting portion 201, the groove 202, the body 203 and the piston rod 3 are arranged in the groove.
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 an assembly schematic diagram of a protective cover in the prior art, and as shown in fig. 1, a commonly used anti-snaking protective cover at present is fixed by small bolts uniformly distributed on the circumference, but the small bolts have a risk of falling off under the working conditions of impact of heavy objects such as stones and long-term severe vibration, so that a piston rod is unprotected, and the small bolts falling on a track also have certain danger.
The utility model discloses an overcome the technical problem that exists among the prior art, designed a high-speed oil pressure shock absorber safety cover for EMUs, fig. 2 is the utility model discloses safety cover structure schematic diagram, fig. 3 is the utility model discloses safety cover assembly schematic diagram. Referring to fig. 2 and 3, the protective cover of the present invention mainly includes: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part.
The groove is a welding seam groove, and the connecting part is fixedly connected with the body through welding.
The thread matching part is also provided with thread fastening glue, so that the reliability of threaded connection is ensured.
The body is made of thin steel pipe materials, and the quality of the protective cover is guaranteed not to exceed the limit.
To sum up, the utility model discloses safety cover connecting portion adopt whole screw thread formula structure, avoid the risk of traditional screw inefficacy, and other positions adopt thin steel pipe and connecting portion welded structure, make it satisfy the shock absorber quality control requirement.
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 (4)
1. The utility model provides a high-speed is oil hydraulic shock absorber safety cover for EMUs which characterized in that includes: the connecting part is characterized by comprising a connecting part and a body, wherein the inner wall of the connecting part is integrally provided with a thread structure and is used for being in thread fit with the end part of a piston rod of the oil pressure shock absorber, one end of the outer wall of the connecting part is provided with a groove, and the body is embedded into the groove of the groove and is fixedly connected with the connecting part.
2. The protective cover for the oil damper of the high-speed motor train unit according to claim 1, wherein the groove is a weld groove, and the connecting portion is fixedly connected with the body by welding.
3. The protective cover for the oil damper of the high-speed motor train unit according to claim 1, wherein a thread fastening glue is further arranged at the thread matching part.
4. The protective cover of the oil damper for the high-speed motor train unit according to claim 2, wherein the body is made of a thin steel pipe material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020701435.XU CN212775316U (en) | 2020-04-30 | 2020-04-30 | Oil pressure shock absorber protection cover for high-speed motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020701435.XU CN212775316U (en) | 2020-04-30 | 2020-04-30 | Oil pressure shock absorber protection cover for high-speed motor train unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775316U true CN212775316U (en) | 2021-03-23 |
Family
ID=75066277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020701435.XU Active CN212775316U (en) | 2020-04-30 | 2020-04-30 | Oil pressure shock absorber protection cover for high-speed motor train unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212775316U (en) |
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2020
- 2020-04-30 CN CN202020701435.XU patent/CN212775316U/en active Active
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