CN209855916U - Lightweight piston that components of a whole that can function independently were assembled - Google Patents
Lightweight piston that components of a whole that can function independently were assembled Download PDFInfo
- Publication number
- CN209855916U CN209855916U CN201920447708.XU CN201920447708U CN209855916U CN 209855916 U CN209855916 U CN 209855916U CN 201920447708 U CN201920447708 U CN 201920447708U CN 209855916 U CN209855916 U CN 209855916U
- Authority
- CN
- China
- Prior art keywords
- piston
- limiting sleeve
- base body
- pin shaft
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a lightweight piston that components of a whole that can function independently were assembled, it includes: the piston comprises a piston base body, a pin shaft and a limiting sleeve, wherein a cavity is arranged in the piston base body, lightening holes communicated with the cavity are symmetrically formed in the lower portion of the excircle of the piston base body, the limiting sleeve is arranged in the lightening holes, the pin shaft is arranged in the cavity, two ends of the pin shaft respectively extend into the limiting sleeve, an annular groove located behind the limiting sleeve is formed in the lightening holes, a spring clamp is arranged in the annular groove, and the spring clamp is in contact with the rear end of the limiting sleeve to limit. Lightweight piston that components of a whole that can function independently was assembled, the mounting that has designed lightening hole and stop collar very much and carried out the round pin axle has controlled the quantity and the volume of part, reduces the dead weight to utilize the ring channel to realize the spacing of stop collar with the cooperation of spring card, the dismouting is convenient, stable in structure.
Description
Technical Field
The utility model relates to a piston technical field especially relates to a lightweight piston that components of a whole that can function independently were assembled.
Background
The automobile piston is better than the center part of an automobile engine and is used for bearing gas pressure, a connecting rod is driven by a piston pin to drive a crankshaft to rotate, and the top of the piston is also a component of a combustion chamber, so that the automobile piston occupies an extremely important position when the engine runs.
In recent years, the engine has been strengthened more and more, and the engine speed, the average effective pressure and the piston average speed have been improved more and more than before, so that the thermal load and the mechanical load of the engine have been increased. After the piston damages, can change or maintain, but the cost of whole change is high, and the components of a whole that can function independently piston can reduce the maintenance cost, but the structure is complicated, and the equipment is more loaded down with trivial details, has increased spare part and dead weight, has influenced the lightweight of piston.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lightweight piston that components of a whole that can function independently were assembled reduces the dead weight, promotes the dismouting convenience.
To achieve the purpose, the utility model adopts the following technical proposal:
a lightweight piston that components of a whole that can function independently are assembled, includes: the piston comprises a piston base body, a pin shaft and a limiting sleeve, wherein a cavity is arranged in the piston base body, lightening holes communicated with the cavity are symmetrically formed in the lower portion of the excircle of the piston base body, the limiting sleeve is arranged in the lightening holes, the pin shaft is arranged in the cavity, two ends of the pin shaft respectively extend into the limiting sleeve, an annular groove located behind the limiting sleeve is formed in the lightening holes, a spring clamp is arranged in the annular groove, and the spring clamp is in contact with the rear end of the limiting sleeve to limit.
Wherein, the stop collar front end extends to in the cavity.
And the front end of the limiting sleeve is provided with a mounting blind hole corresponding to the pin shaft.
And the rear end of the limiting sleeve is provided with an oil inlet hole connected with the mounting blind hole, and the diameter of the oil inlet hole is smaller than that of the mounting blind hole.
The piston base body is an aluminum alloy piston base body, and the limiting sleeve is an aluminum alloy sleeve or a steel sleeve.
Wherein, the upper portion of piston base member excircle is provided with gas ring groove and oil ring groove.
The utility model has the advantages that: the utility model provides a lightweight piston that components of a whole that can function independently was assembled, has designed lightening hole and stop collar specially and has carried out the installation of round pin axle, has controlled the quantity and the volume of part, reduces the dead weight to utilize the cooperation of ring channel and spring card to realize the spacing of stop collar, stable in structure, the dismouting is convenient, is favorable to the components of a whole that can function independently to be maintained, reduces the maintenance cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1.
The split lightweight piston shown in fig. 1 includes: piston base member 1, round pin axle 7 and stop collar 8, be provided with cavity 10 in the piston base member 1, on the basis of guaranteeing structural strength, reduce the dead weight as far as possible, piston base member 1 is aluminum alloy piston base member, and intensity is high, and the dead weight is light.
The stop collar 8 is an aluminum alloy sleeve or a steel sleeve, and the aluminum alloy sleeve made of the same material as the piston base body 1 can be selected, so that the dead weight is reduced.
The piston base body 1 is provided with lightening holes 5 communicated with the cavity 10 at the lower part of the excircle symmetrically, which is beneficial to reducing the dead weight. The stop collar 8 is arranged in the lightening hole 5, the diameter of the lightening hole 5 corresponds to the diameter of the excircle of the stop collar 8, and the installation is convenient.
The pin shaft 7 is arranged in the cavity 10, two ends of the pin shaft respectively extend into the limiting sleeve 8, the front end of the limiting sleeve 8 extends into the cavity 10, the pin shaft 7 is well supported, and the stability of the pin shaft 7 is improved. The front end of the limiting sleeve 8 is provided with a mounting blind hole corresponding to the pin shaft 7, and the diameter of the mounting blind hole corresponds to that of the pin shaft 7 and is tightly matched with the pin shaft 7.
An annular groove 4 located behind the limiting sleeve 8 is formed in the lightening hole 5, a spring clamp 6 is arranged in the annular groove 4, the spring clamp 6 is in contact with the rear end of the limiting sleeve 8 for limiting, and the structural stability of the limiting sleeve 8 is improved.
The rear end of the limiting sleeve 8 is provided with an oil inlet 9 connected with the mounting blind hole, the diameter of the oil inlet 9 is smaller than that of the mounting blind hole, a step is formed, axial limiting of the pin shaft 7 is achieved, and axial sliding of the pin shaft 7 is avoided. In the process of piston movement, part of lubricating oil enters the mounting blind hole through the oil inlet hole 9, so that the pin shaft 7 is lubricated, and the service life is prolonged.
And the upper part of the excircle of the piston base body 1 is provided with an air ring groove 2 and an oil ring groove 3, the air ring and the oil ring are respectively installed, and the air tightness of the piston motion is improved.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a lightweight piston that components of a whole that can function independently were assembled which characterized in that includes: the piston comprises a piston base body, a pin shaft and a limiting sleeve, wherein a cavity is arranged in the piston base body, lightening holes communicated with the cavity are symmetrically formed in the lower portion of the excircle of the piston base body, the limiting sleeve is arranged in the lightening holes, the pin shaft is arranged in the cavity, two ends of the pin shaft respectively extend into the limiting sleeve, an annular groove located behind the limiting sleeve is formed in the lightening holes, a spring clamp is arranged in the annular groove, and the spring clamp is in contact with the rear end of the limiting sleeve to limit.
2. The split lightweight piston according to claim 1, wherein the front end of the stop collar extends into the cavity.
3. The split lightweight piston is characterized in that the front end of the limiting sleeve is provided with a blind mounting hole corresponding to the pin shaft.
4. The split-assembled lightweight piston according to claim 3, wherein an oil inlet connected with the blind mounting hole is formed in the rear end of the limiting sleeve, and the diameter of the oil inlet is smaller than that of the blind mounting hole.
5. The split-assembled lightweight piston according to claim 1, wherein the piston base body is an aluminum alloy piston base body, and the limiting sleeve is an aluminum alloy sleeve or a steel sleeve.
6. The split lightweight piston according to claim 1, wherein an upper portion of an outer circumference of the piston base body is provided with a gas ring groove and an oil ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447708.XU CN209855916U (en) | 2019-04-04 | 2019-04-04 | Lightweight piston that components of a whole that can function independently were assembled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447708.XU CN209855916U (en) | 2019-04-04 | 2019-04-04 | Lightweight piston that components of a whole that can function independently were assembled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209855916U true CN209855916U (en) | 2019-12-27 |
Family
ID=68936230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920447708.XU Expired - Fee Related CN209855916U (en) | 2019-04-04 | 2019-04-04 | Lightweight piston that components of a whole that can function independently were assembled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209855916U (en) |
-
2019
- 2019-04-04 CN CN201920447708.XU patent/CN209855916U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |