CN204041259U - A kind of Novel piston pin - Google Patents
A kind of Novel piston pin Download PDFInfo
- Publication number
- CN204041259U CN204041259U CN201420338434.8U CN201420338434U CN204041259U CN 204041259 U CN204041259 U CN 204041259U CN 201420338434 U CN201420338434 U CN 201420338434U CN 204041259 U CN204041259 U CN 204041259U
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- CN
- China
- Prior art keywords
- wrist pin
- piston pin
- oil
- pin
- pin body
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- 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.)
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Abstract
A kind of Novel piston pin, it includes the cylindrical piston pin body of inner band through hole, and its technological points is: on the end face near cylindrical piston pin body, be upwards evenly distributed with oil groove along wrist pin body shaft.The beneficial effect of feature of the present utility model and generation is: two terminals of wrist pin outer surface add eight oil grooves, motor operationally, constantly can maintain oil in oil groove to exist, wrist pin outer surface can form oil film always, be conducive to the cooling and lubricating of wrist pin, reduce wrist pin wear, reduce the risk destroyed.
Description
Technical field
The utility model belongs to technical field of automobile engine, specifically relates to a kind of Novel piston pin of wrist pin in piston assembly.
Background technique
In current motor car engine industry, piston assembly comprises piston, piston ring, wrist pin.Wrist pin is the key part connecting piston and connecting rod, and its effect is that the gas pressure on piston and inertial force are passed to connecting rod by key seat and wrist pin, thus completes the conversion of kinetic energy to heat energy.Wrist pin uses low carbon steel and alloyed steel manufacture usually, and pin surface has high hardness, high strength, and has toughness.Present stage, wrist pin periphery was all adopt smooth cylindrical profile, and inner employing through hole pattern, to alleviate wrist pin weight.Piston pin boss temperature is higher, and pin does oscillating motion in key seat, and be therefore unfavorable for realizing good lubrication, wrist pin is usually frayed very serious.
Summary of the invention
The purpose of this utility model is to provide a kind of Novel piston pin.To solve bad, usually frayed in the key seat phenomenon of wrist pin Cooling and Lubricator, finally adopt the structural type that cylindrical adopts oil groove, reduce the wearing and tearing in key seat, improve the working life of wrist pin.
The purpose of this utility model is achieved by the following technical solution: a kind of Novel piston pin, it includes the cylindrical piston pin body of inner band through hole, it is characterized in that: on the end face near cylindrical piston pin body, be upwards evenly distributed with oil groove along wrist pin body shaft.
Two end faces of described cylindrical piston pin body are evenly distributed with four oil grooves respectively.
The beneficial effect of feature of the present utility model and generation is: two terminals of wrist pin outer surface add eight oil grooves, motor operationally, constantly can maintain oil in oil groove to exist, wrist pin outer surface can form oil film always, be conducive to the cooling and lubricating of wrist pin, reduce wrist pin wear, reduce the risk destroyed.
Accompanying drawing explanation
Fig. 1 sectional structure simplified schematic diagram of the present utility model;
Fig. 2 end-face structure simplified schematic diagram of the present utility model.
The utility model to be described in further detail by example below in conjunction with accompanying drawing; but following example is only the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
example 1
Shown in Fig. 1-2, the cylindrical piston pin body of described inner band through hole 4,3 is wrist pin outer surface, and 1 is wrist pin end face, on the end face 1 near cylindrical piston pin body, is upwards evenly distributed with four oil grooves 2 along wrist pin body shaft.
The shape of wrist pin is cylindrical, inside is through hole 4 form, with wrist pin end face 1 for starting point, add oil groove 2 at outer surface 3 machine at wrist pin two ends, wherein be uniformly distributed four oil grooves 2 near an end face, 90 degree, four oil groove 2 intervals, oil groove 2 length is determined according to FEM (finite element) calculation, finally removes the break corner burr at oil groove 2 edge.This design proposal adapts to the wrist pin of various inner band through-hole form.
Claims (2)
1. a Novel piston pin, it includes the cylindrical piston pin body of inner band through hole, it is characterized in that: on the end face near cylindrical piston pin body, be upwards evenly distributed with oil groove along wrist pin body shaft.
2. wrist pin according to claim 1, is characterized in that: on two end faces of described cylindrical piston pin body, be evenly distributed with four oil grooves respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338434.8U CN204041259U (en) | 2014-06-24 | 2014-06-24 | A kind of Novel piston pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338434.8U CN204041259U (en) | 2014-06-24 | 2014-06-24 | A kind of Novel piston pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041259U true CN204041259U (en) | 2014-12-24 |
Family
ID=52241931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338434.8U Active CN204041259U (en) | 2014-06-24 | 2014-06-24 | A kind of Novel piston pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547946A (en) * | 2018-03-28 | 2018-09-18 | 安徽宝泰汽车部件有限公司 | A kind of piston pin |
-
2014
- 2014-06-24 CN CN201420338434.8U patent/CN204041259U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547946A (en) * | 2018-03-28 | 2018-09-18 | 安徽宝泰汽车部件有限公司 | A kind of piston pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |