CN203488704U - Semi-floating piston pin - Google Patents
Semi-floating piston pin Download PDFInfo
- Publication number
- CN203488704U CN203488704U CN201320557566.5U CN201320557566U CN203488704U CN 203488704 U CN203488704 U CN 203488704U CN 201320557566 U CN201320557566 U CN 201320557566U CN 203488704 U CN203488704 U CN 203488704U
- Authority
- CN
- China
- Prior art keywords
- piston pin
- semi
- floating piston
- pin
- wrist pin
- 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
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston pin of an internal combustion engine, and particularly belongs to a semi-floating piston pin. The semi-floating piston pin is characterized in that arc guiding surfaces are manufactured at the tops of chamfers on two end heads of the piston pin. According to the semi-floating piston pin, the piston pin and connecting rods are guided through the arc guiding surfaces due to the fact that the arc guiding surfaces are added at the front ends of the chamfers, and then the connecting rods are transited to inclined planes firstly and finally to cylindrical surfaces, and therefore the whole assembling process is smooth and unhindered, and furthermore centering is easy.
Description
Technical field
The wrist pin of the utility model internal-combustion engine, especially belongs to semi-floating piston pin
.
Background technique
Wrist pin is the cylindrical peg that is contained in piston skirt, and its middle part, through connecting rod small end hole, is used for connecting piston and connecting rod, and the gas load that piston is born is passed to connecting rod.For weight reduction, wrist pin is generally used high duty alloy steel making, and is made into hollow.It is generally divided into two kinds of wholly floating and semi-floatings, and wholly floating refers to that coordinating between wrist pin and connecting rod, piston is Spielpassung, and two ends are fixing to prevent that gudgeon pin shaft is to play with snap ring; It is Spielpassung that semi-floating refers between wrist pin and piston, and between connecting rod, is interference fit.Amplify as shown in Figure 1 the part of existing semi-floating piston pin, periphery in wrist pin 1 termination, two ends is processed with chamfering 11, while only causing wrist pin to pack the connecting rod with its interference fit into for inclined-plane due to chamfering 11, be still wedge angle 13 with connecting rod endoporus connecting part, assembly process is unsmooth.
Summary of the invention
The utility model object is to overcome the shortcoming that above-mentioned wrist pin exists, and provides a kind of easy centering, the wrist pin that assembly process is comparatively level and smooth.
The technological scheme that the utility model adopts is semi-floating piston pin, and its main points are to be manufactured with circular arc guide surface at the top of the chamfering of wrist pin two ends.
The utility model, by increasing circular arc guide surface at chamfering front end, makes by circular arc guide surface, to guide and be transitioned into inclined-plane between wrist pin and connecting rod and finally arrives cylinder, and whole assembly process is smoothly smooth and easy, easier centering.
Accompanying drawing explanation
Fig. 1 is the partial enlarged drawing structural representation of the termination chamfering of existing wrist pin
Fig. 2 is structural representation of the present utility model
Fig. 3 is the partial enlarged drawing of Fig. 2 termination
Wherein: 1 wrist pin 11 chamfering 12 circular arc guide surface 13 wedge angles.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail
Claims (1)
1. semi-floating piston pin, is characterized in that, at the top of the chamfering (11) of wrist pin (1) two ends, is manufactured with circular arc guide surface (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557566.5U CN203488704U (en) | 2013-09-10 | 2013-09-10 | Semi-floating piston pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557566.5U CN203488704U (en) | 2013-09-10 | 2013-09-10 | Semi-floating piston pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488704U true CN203488704U (en) | 2014-03-19 |
Family
ID=50259540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557566.5U Expired - Fee Related CN203488704U (en) | 2013-09-10 | 2013-09-10 | Semi-floating piston pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757205A (en) * | 2018-04-28 | 2018-11-06 | 江西腾勒动力有限公司 | The piston rod part of three-cylinder engine |
-
2013
- 2013-09-10 CN CN201320557566.5U patent/CN203488704U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757205A (en) * | 2018-04-28 | 2018-11-06 | 江西腾勒动力有限公司 | The piston rod part of three-cylinder engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203488704U (en) | Semi-floating piston pin | |
| CN205423303U (en) | Compressor drum barrel with bifurcation structure | |
| EP2479444A3 (en) | A connecting rod for an internal combustion engine and a manufacturing method therefore | |
| CN204572753U (en) | Connecting rod | |
| CN203488268U (en) | Double-ring-groove ring-inlaid diesel piston with inner cooling oil path | |
| CN208605291U (en) | A kind of gasoline engine aluminum piston with valve hole | |
| CN202391565U (en) | Efficient internal combustion engine for offset cylinder | |
| CN201835939U (en) | Oil ring of piston ring group for engine | |
| CN203604625U (en) | Piston pin | |
| CN205677682U (en) | A kind of valve actuating push rod | |
| CN203499841U (en) | Improved piston of petrol engine | |
| CN204140217U (en) | Housing structure in motor | |
| CN103362682B (en) | A kind of diesel motor piston | |
| CN204984502U (en) | Gasoline engine turbo charger floating bearing spacer | |
| CN201501087U (en) | Combined type guide sleeve | |
| CN202756603U (en) | Plug-in type piston for engineering machinery | |
| CN209781061U (en) | Nodular cast piston ring | |
| CN204253502U (en) | Cylinder piston structure-improved | |
| CN103016191A (en) | Piston skirt profile line structure | |
| CN202483742U (en) | Piston | |
| CN202110907U (en) | Aluminum-nickel-cobalt magnetic steel for engineering machinery | |
| CN204572158U (en) | A kind of internal-combustion engine outlet and exhaust gear joint steel pipe | |
| CN202228199U (en) | Cylinder body undercut groove structure for cylinder sleeve support | |
| CN209510477U (en) | A kind of lightweight single cylinder diesel | |
| CN203463195U (en) | Piston of supercharged engine |
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: 20140319 Termination date: 20150910 |
|
| EXPY | Termination of patent right or utility model |