CN209855917U - Piston capable of avoiding pin shaft from sliding - Google Patents
Piston capable of avoiding pin shaft from sliding Download PDFInfo
- Publication number
- CN209855917U CN209855917U CN201920447709.4U CN201920447709U CN209855917U CN 209855917 U CN209855917 U CN 209855917U CN 201920447709 U CN201920447709 U CN 201920447709U CN 209855917 U CN209855917 U CN 209855917U
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- piston
- shaft fixing
- fixing seat
- base 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
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses an avoid piston that round pin axle slided, it includes: the piston comprises a gasket, a piston base body, a pin shaft fixing seat and a pin shaft, wherein the pin shaft fixing seat is symmetrically arranged at the bottom of a cavity of the piston base body, the pin shaft is arranged between the two pin shaft fixing seats, the pin shaft fixing seat is of a cylindrical structure, a through hole corresponding to the pin shaft fixing seat is formed in the excircle of the piston base body, a blind hole corresponding to the pin shaft is formed in the inner end of the pin shaft fixing seat in an inwards concave mode, the gasket is arranged in the blind hole to axially limit the end part of the pin shaft, a spring clamp is concentrically arranged on the outer side of the pin shaft fixing seat, and the. Avoid the piston that round pin axle slided, carry out the packing of blind hole through the gasket that adopts different quantity or thickness for round pin axle both ends are compacter real, have avoided the axial problem of sliding of round pin axle when piston motion.
Description
Technical Field
The utility model relates to a piston technical field especially relates to a avoid piston that round pin axle slided.
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 whole change with high costs, and the structure of components of a whole that can function independently piston is complicated, and the equipment is more loaded down with trivial details, and is poor to the spacing precision of the axial of round pin axle, leads to the round pin axle to take place tiny axial slip when the operation easily, has influenced piston motion's stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an avoid the piston that the round pin axle slided, promote the spacing precision of round pin axle, avoid the axial to slide.
To achieve the purpose, the utility model adopts the following technical proposal:
a piston for avoiding pin roll slippage, comprising: the piston comprises a gasket, a piston base body, a pin shaft fixing seat and a pin shaft, wherein a cavity is formed in the piston base body, the pin shaft fixing seats are symmetrically arranged at the bottom of the cavity of the piston base body, the pin shaft is arranged between the two pin shaft fixing seats, the pin shaft fixing seats are of a cylindrical structure, a through hole corresponding to the pin shaft fixing seats is formed in the excircle of the piston base body, blind holes corresponding to the pin shaft are formed in the inner ends of the pin shaft fixing seats in an inwards concave mode, the gasket is arranged in the blind holes to axially limit the end portions of the pin shaft, a spring clamp is concentrically arranged on the outer side of the pin shaft fixing seats.
And an annular groove corresponding to the spring clamp is concavely arranged on the excircle of the pin shaft fixing seat.
And a lubricating oil hole communicated with the blind hole is concavely arranged at the outer end of the pin shaft fixing seat.
Wherein, the diameter of the blind hole is larger than that of the lubricating oil hole.
Wherein, the excircle of the piston base body is provided with a gas ring groove and an oil ring groove.
The bottom of the piston base body is correspondingly provided with a U-shaped weight reduction groove with an opening pointing downwards.
The utility model has the advantages that: the utility model provides an avoid piston that round pin axle slided, adopts the spring card to carry out the axial of round pin axle fixing base spacing very much to carry out the packing of blind hole through the gasket that adopts different quantity or thickness, make round pin axle both ends compacter, avoided the axial problem of sliding of round pin axle when the piston motion, promoted structural stability.
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 piston for avoiding pin shaft slippage as shown in fig. 1 comprises: the piston comprises a gasket 10, a piston base body 1, a pin shaft fixing seat 6 and a pin shaft 7, wherein a cavity 2 is formed in the piston base body 1, and the weight reduction effect is good. An air ring groove 3 and an oil ring groove 4 are arranged on the outer circle of the piston base body 1, the air ring and the oil ring are installed respectively, and the sealing effect of piston movement is improved.
The pin shaft fixing seats 6 are symmetrically arranged at the bottom of the cavity 2 of the piston base body 1, the pin shaft fixing seats 6 are of cylindrical structures, through holes 5 corresponding to the pin shaft fixing seats 6 are formed in the outer circle of the piston base body 1, and the outer ends of the pin shaft fixing seats 6 enter the through holes 5, so that the installation is convenient.
The spring clamp 9 is concentrically arranged on the outer side of the pin shaft fixing seat 6, the spring clamp 9 is in contact with the inner wall of the cavity 2 to axially limit the pin shaft fixing seat 6, an annular groove corresponding to the spring clamp 9 is concavely arranged on the outer circle of the pin shaft fixing seat 6, the structure is stable, the dismounting is convenient, the split maintenance can be realized, and the maintenance cost is reduced.
The pin shaft 7 is arranged between the two pin shaft fixing seats 6, blind holes corresponding to the pin shafts 7 are formed in the inner ends of the pin shaft fixing seats 6 in an inwards concave mode, the front ends of the pin shafts 7 enter the blind holes to be limited, and the pin shaft fixing seats are of a split structure and convenient to install and disassemble.
The gasket 10 sets up and carries out axial spacing to 7 tip of round pin axle in the blind hole, carries out the packing of blind hole through the gasket 10 that adopts different quantity or thickness for 7 both ends of round pin axle are compacter, reduce the space, have avoided the axial problem of sliding of round pin axle 7 when the piston motion.
6 outer ends of the pin shaft fixing seats are concavely provided with lubricating oil holes 11 communicated with the blind holes, the diameters of the blind holes are larger than the diameters of the lubricating oil holes 11, steps are formed, the limiting of the gasket 10 is realized, and when the piston moves, part of lubricating oil enters the blind holes through the lubricating oil holes 11, so that the gasket 10 is cooled and lubricated, and the gasket 10 is prevented from being rusted.
The bottom of the piston base body 1 is correspondingly provided with a U-shaped weight-reducing groove 8 with an opening pointing downwards, so that the self weight is further reduced, and the reduction of the energy consumption of an engine is facilitated.
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. A piston for avoiding pin roll slippage, comprising: the piston comprises a gasket, a piston base body, a pin shaft fixing seat and a pin shaft, wherein a cavity is formed in the piston base body, the pin shaft fixing seats are symmetrically arranged at the bottom of the cavity of the piston base body, and the pin shaft is arranged between the two pin shaft fixing seats.
2. The piston for avoiding the slippage of the pin shaft according to claim 1, wherein the pin shaft fixing seat is provided with an annular groove corresponding to the spring clip on the outer circle in a concave manner.
3. The piston for avoiding the slippage of the pin shaft as claimed in claim 1, wherein a lubricating oil hole communicated with the blind hole is concavely formed at the outer end of the pin shaft fixing seat.
4. The piston for avoiding pin roll slippage according to claim 3, wherein said blind hole has a diameter larger than a diameter of said lubrication hole.
5. The piston for avoiding pin roll slippage according to claim 1, wherein said piston body has a gas ring groove and an oil ring groove formed in an outer circumference thereof.
6. The piston for avoiding pin roll slippage according to claim 1, wherein the bottom of the piston base body is correspondingly provided with a U-shaped weight-reducing groove with an opening pointing downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447709.4U CN209855917U (en) | 2019-04-04 | 2019-04-04 | Piston capable of avoiding pin shaft from sliding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447709.4U CN209855917U (en) | 2019-04-04 | 2019-04-04 | Piston capable of avoiding pin shaft from sliding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209855917U true CN209855917U (en) | 2019-12-27 |
Family
ID=68936270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920447709.4U Expired - Fee Related CN209855917U (en) | 2019-04-04 | 2019-04-04 | Piston capable of avoiding pin shaft from sliding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209855917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828193A (en) * | 2020-06-05 | 2020-10-27 | 东风柳州汽车有限公司 | Piston assembly and internal combustion engine |
-
2019
- 2019-04-04 CN CN201920447709.4U patent/CN209855917U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828193A (en) * | 2020-06-05 | 2020-10-27 | 东风柳州汽车有限公司 | Piston assembly and internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209855917U (en) | Piston capable of avoiding pin shaft from sliding | |
| CN2826059Y (en) | Joint bearing | |
| CN211975197U (en) | Cast aluminum piston capable of improving utilization rate of lubricating oil | |
| CN203962319U (en) | A kind of refrigeration compressor piston driving mechanism | |
| CN103696869B (en) | Rolling friction built-up piston | |
| CN105179129B (en) | Cam follower roller device, in particular for fuel injection pumps | |
| CN209855915U (en) | Split assembled piston with compact structure | |
| CN209855916U (en) | Lightweight piston that components of a whole that can function independently were assembled | |
| CN209781058U (en) | Piston with friction reducing coating convenient to maintain | |
| CN210344035U (en) | Sealed cylindrical roller bearing with inner ring provided with shaft | |
| CN212265740U (en) | Cold assembly fixture for crosshead pin of diaphragm compressor | |
| CN201330792Y (en) | Connecting rod of gasoline engine | |
| CN211975199U (en) | Split type piston cooling and lubricating assembly | |
| CN110486467B (en) | Piston pin structure with self-lubricating function | |
| CN2787912Y (en) | Guide bearing of bar and wire rolling mill | |
| CN201358844Y (en) | Engine piston with easy starting lubrication | |
| CN202468212U (en) | Bearing pedestal, machine body and compressor equipped with machine body | |
| CN211975200U (en) | Antifriction piston based on prevent expander | |
| CN203742820U (en) | Rolling friction combined type piston | |
| CN103635659B (en) | The rolling bearing that pressing-in force is optimised | |
| CN212177288U (en) | Assembly piston based on shaft sleeve | |
| CN209800107U (en) | Pin-connected panel lightweight antifriction piston | |
| CN209800109U (en) | Piston with detachable friction reducing plate | |
| CN210003402U (en) | high-temperature deformation resistant split piston | |
| CN201420597Y (en) | Ceramic ball bearing turbocharger |
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 |