CN209855919U - Expansion-preventing piston convenient to maintain - Google Patents
Expansion-preventing piston convenient to maintain Download PDFInfo
- Publication number
- CN209855919U CN209855919U CN201920541514.6U CN201920541514U CN209855919U CN 209855919 U CN209855919 U CN 209855919U CN 201920541514 U CN201920541514 U CN 201920541514U CN 209855919 U CN209855919 U CN 209855919U
- Authority
- CN
- China
- Prior art keywords
- piston
- steel ring
- expansion
- piston skirt
- skirt body
- 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 maintain convenient anti-expansion piston, it includes: prevent bloated steel ring, piston lid and the piston skirt body, piston lid bottom is provided with the uide bushing that extends to in the piston skirt body, the indent is provided with the ring channel in the piston skirt internal wall, be provided with downwardly extending's draw-in groove in the ring channel, prevent bloated steel ring setting in the ring channel and the bottom extends to the draw-in groove, the uide bushing inboard is provided with the spring card installation annular that corresponds with the steel ring position of preventing bloating, radially be provided with the directional through-hole of preventing bloating the steel ring in the spring card installation annular, be provided with in the through-hole and run through the locating pin that prevents bloating the steel ring and extend to in the piston skirt body. Maintain convenient anti-expansion piston, the components of a whole that can function independently structure, can dismantle after damaging and carry out solitary maintenance respectively, reduce the maintenance cost to the expansion of being heated of the piston skirt body and uide bushing is restrained to the steel ring that prevents expanding to the utilization, has promoted the durability of piston.
Description
Technical Field
The utility model relates to a piston technical field especially relates to a maintain convenient piston that expands of preventing.
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.
The aluminum alloy piston is light in weight and beneficial to reducing the energy consumption of an engine, but the aluminum alloy piston is high in thermal expansion coefficient, easy to expand in a high-temperature environment to accelerate abrasion, and the service life of the engine is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a maintain convenient prevent piston that expands, promote and prevent the effect that expands, reduce the maintenance cost.
To achieve the purpose, the utility model adopts the following technical proposal:
an expansion-resistant piston that is easy to maintain, comprising: prevent bloated steel ring, piston lid and the piston skirt body, the piston lid sets up at piston skirt body top, piston lid bottom is provided with the uide bushing that extends to in the piston skirt body, the indent is provided with the ring channel in the piston skirt internal wall, be provided with downwardly extending's draw-in groove in the ring channel, prevent bloating the steel ring setting in the ring channel and the bottom extends to the draw-in groove in, the uide bushing inboard is provided with the spring card installation annular that corresponds with preventing bloating the steel ring position, radially be provided with the directional through-hole of preventing bloating the steel ring in the spring card installation annular, be provided with in the through-hole and run through the locating pin that prevents bloating the steel ring and extend to in the piston skirt body, be provided with in the spring card installation annular and carry out spacing spring card to.
And a blind hole or a positioning groove corresponding to the positioning pin is arranged in the annular groove.
Wherein, piston skirt body excircle upper portion is provided with gas ring groove and oil ring groove.
The piston skirt body is internally and symmetrically provided with pin hole seats, and pin holes are respectively arranged in the pin hole seats.
The piston cover body and the guide sleeve are of an integrated aluminum alloy structure.
And the bottom of the outer circle of the piston skirt body is provided with weight reduction grooves positioned on two sides of the pin hole seat.
The utility model has the advantages that: the utility model provides a maintain convenient anti-expansion piston, components of a whole that can function independently structure can be dismantled after damaging and carry out solitary maintenance respectively, reduces the maintenance cost to utilize the thermal expansion of the anti-expansion steel ring suppression piston skirt body and uide bushing, reduce the wearing and tearing of piston skirt body when the piston motion, promoted the durability of piston.
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.
A service-friendly anti-expansion piston as shown in fig. 1, comprising: prevent bloated steel ring 8, piston lid 1 and piston skirt 6, piston lid 1 sets up at piston skirt 6 top, and the components of a whole that can function independently structure can be dismantled and maintain and change alone, retrieves conveniently reduce cost.
The piston is characterized in that the guide sleeve 2 extending into the piston skirt body 6 is arranged at the bottom of the piston cover body 1, the piston cover body 1 and the guide sleeve 2 are of an integrated aluminum alloy structure, and the piston is high in strength and light in weight.
The indent is provided with ring channel 10 in the 6 inner walls of piston skirt, be provided with downwardly extending's draw-in groove 5 in the ring channel 10, prevent that bloated steel ring 8 sets up in ring channel 10 and the bottom extends to draw-in groove 5 in, prevent that bloated steel ring 8 includes two semicircle rings, and two semicircle rings are placed respectively and are docked in ring channel 10, and the installation is convenient. The expansion-proof steel ring 8 can be made of an iron-nickel alloy material with a low expansion coefficient, and the expansion of the guide sleeve 2 and the piston skirt body 6 is restrained due to small expansion when being heated.
2 inboards of uide bushing are provided with the spring card installation annular 12 that corresponds with 8 positions of the steel ring that prevents expanding, radially be provided with the directional through-hole of preventing expanding steel ring 8 in the spring card installation annular 12, be provided with in the through-hole and run through the locating pin 9 that prevents expanding steel ring 8 and extend to in the piston skirt body 6, utilize locating pin 9 to realize preventing expanding steel ring 8, uide bushing 2 and the fixed of piston skirt body 6, sound construction.
The spring clamp mounting ring groove 12 is internally provided with a spring clamp 11 for limiting the positioning pin 9, and the positioning pin 9 is fixed by the spring clamp 11 after being mounted, so that flying off is avoided. A blind hole or a positioning groove corresponding to the positioning pin 9 is provided in the annular groove 10, so that the positioning pin 9 is inserted into the piston skirt 6.
The upper portion of the outer circle of the piston skirt body 6 is provided with an air ring groove 3 and an oil ring groove 4, the air ring and the oil ring are installed respectively, and the air tightness of piston movement is improved.
Pin hole seats 7 are symmetrically arranged in the piston skirt body 6, and pin holes are respectively formed in the pin hole seats 7, so that the pin shaft is convenient to mount. And the bottom of the excircle of the piston skirt body 6 is provided with lightening grooves 13 positioned at two sides of the pin hole seat 7, so that the self weight and the energy consumption of piston movement are reduced.
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. An expansion-resistant piston that is easy to maintain, comprising: prevent bloated steel ring, piston lid and the piston skirt body, the piston lid sets up at piston skirt body top, piston lid bottom is provided with the uide bushing that extends to in the piston skirt body, the indent is provided with the ring channel in the piston skirt internal wall, be provided with downwardly extending's draw-in groove in the ring channel, prevent bloating the steel ring setting in the ring channel and the bottom extends to the draw-in groove in, the uide bushing inboard is provided with the spring card installation annular that corresponds with preventing bloating the steel ring position, radially be provided with the directional through-hole of preventing bloating the steel ring in the spring card installation annular, be provided with in the through-hole and run through the locating pin that prevents bloating the steel ring and extend to in the piston skirt body, be provided with in the spring card installation annular and carry out spacing spring card to.
2. The maintenance-friendly expansion-preventing piston according to claim 1, wherein the annular groove is provided therein with a blind hole or a positioning groove corresponding to the positioning pin.
3. The maintenance-friendly expansion-proof piston according to claim 1, wherein an upper portion of an outer circumference of the piston skirt is provided with an air ring groove and an oil ring groove.
4. The conveniently maintained expansion-proof piston of claim 1, wherein pin hole seats are symmetrically arranged in the piston skirt body, and pin holes are respectively arranged in the pin hole seats.
5. The conveniently maintained expansion-resistant piston of claim 1, wherein the piston cover and the guide sleeve are of an integral aluminum alloy structure.
6. The conveniently maintained expansion-proof piston as claimed in claim 4, wherein the bottom of the outer circle of the piston skirt body is provided with weight-reducing grooves at both sides of the pin hole seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920541514.6U CN209855919U (en) | 2019-04-20 | 2019-04-20 | Expansion-preventing piston convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920541514.6U CN209855919U (en) | 2019-04-20 | 2019-04-20 | Expansion-preventing piston convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209855919U true CN209855919U (en) | 2019-12-27 |
Family
ID=68938308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920541514.6U Expired - Fee Related CN209855919U (en) | 2019-04-20 | 2019-04-20 | Expansion-preventing piston convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209855919U (en) |
-
2019
- 2019-04-20 CN CN201920541514.6U patent/CN209855919U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 Termination date: 20200420 |