CN202580003U - Piston pin clamping spring - Google Patents
Piston pin clamping spring Download PDFInfo
- Publication number
- CN202580003U CN202580003U CN 201220015065 CN201220015065U CN202580003U CN 202580003 U CN202580003 U CN 202580003U CN 201220015065 CN201220015065 CN 201220015065 CN 201220015065 U CN201220015065 U CN 201220015065U CN 202580003 U CN202580003 U CN 202580003U
- Authority
- CN
- China
- Prior art keywords
- clamping spring
- piston pin
- pin clamping
- jump ring
- ring groove
- 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 provides a piston pin clamping spring, which comprises a strip-shaped cambered body, and is characterized in that chamfers are arranged between two end faces of the body and a side face which can be abutted against the side wall of a clamping spring groove, wherein the piston pin clamping spring is arranged in the clamping spring groove; the chamfers are arranged between two end faces of the body and the side face which can be abutted against the side wall of the clamping spring groove; gaps are formed between the chamfer faces and the side wall of the clamping spring groove; and when the clamping spring rotates, the two end parts of the clamping spring do not produce friction to the inner wall of the clamping spring groove, so that the effect of eliminating a scratching phenomenon is achieved.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of jump ring, particularly a kind of piston pin clamping spring.
Background technique
Piston pin clamping spring is installed in the piston pin clamping spring groove; Its effect is axially jumping of limited piston pin; Wrist pin does not produce axial displacement and pulls cylinder inner wall if piston pin clamping spring is installed, come off or fracture when causing engine operation, causes the cylinder gas blowby to crankcase, causes scrapping of motor.
At present, the processing limit at the two end part of the piston pin clamping spring that motor generally uses is right angle side, and this right angle side is generally sharp sharp edge; In engine operation process; The motion of wrist pin causes that piston pin clamping spring produces rotation, and the right angle side at piston pin clamping spring two end part can produce scrape and drew piston pin clamping spring groove sidewall this moment, and this scraping drawn a phenomenon and As time goes on made the heavy wear of jump ring groove; Space in the jump ring groove increases gradually, makes that piston pin clamping spring is loosening or comes off.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of piston pin clamping spring, and this jump ring can be eliminated piston pin clamping spring scraping of jump ring groove sidewall drawn phenomenon, improves the wearing and tearing of jump ring groove.
The purpose of the utility model can realize through following technical proposal: a kind of piston pin clamping spring, comprise being the circular-arc body of bar shaped, it is characterized in that, the both ends of the surface of described body and can and the side that leans of jump ring groove sidewall between all have chamfering.
In piston pin clamping spring is packed the jump ring groove into; The both ends of the surface of jump ring body and can and the side that leans of jump ring groove sidewall between all have chamfering; There is the gap between chamfer surface and the jump ring groove sidewall; During this jump ring rotation, two ends of jump ring do not produce friction to jump ring groove inwall, scrape the effect of drawing phenomenon thereby play to eliminate.
In above-mentioned piston pin clamping spring, described chamfering is chamfer or is the rounding arc angle.Gap between chamfer surface and the jump ring sidewall constitutes oil storage chamber can store lubricant oil, in use, and along with the lubricated jump ring groove sidewall of the rotation of jump ring.
In above-mentioned piston pin clamping spring, the two end part of described body are cone table shape.Any limit, two end part that is cone table shape does not lean with jump ring groove sidewall, and its shape can be adjusted according to the difference of actual jump ring body, for example triangular frustum or tetragonous cone table.
In above-mentioned piston pin clamping spring, the inclination angle of described chamfer is 5 °～10 °.In conjunction with the piston pin clamping spring tightness in use and the operability of actual production, the both ends of the surface of jump ring body and can and the side that leans of jump ring groove sidewall between chamfer be β, β is preferable between 5 °～10 °.
In above-mentioned piston pin clamping spring, the cross section of described jump ring is rounded, and the two end part of described body are circular cone shape.Body is the two end part of circular cone shape also can be through being respectively equipped with circular cone on the body both ends of the surface.
Compared with prior art; This piston pin clamping spring the both ends of the surface of body and can and the side that leans of jump ring groove sidewall between all have chamfering, the two end part of jump ring and jump ring groove sidewall are contactless, thereby eliminated scraping of jump ring groove are drawn; Therefore the wearing and tearing of jump ring groove are less when wrist pin moves; Guaranteed the stability of engine operation, and the lubricant oil of storing between chamfer surface and jump ring groove sidewall can improve the wearing and tearing of jump ring groove, thereby prolong the working life of piston.
Description of drawings
Fig. 1 is the perspective view of piston pin clamping spring.
Fig. 2 is piston pin clamping spring and piston pin clamping spring groove structure combining schematic representation.
Among the figure, 1, chamfering; 2, body; 3, piston pin clamping spring groove.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, this piston pin clamping spring comprises being the circular-arc body of bar shaped 2, the both ends of the surface of body 2 and can and the side that leans of jump ring groove 3 sidewalls between all have chamfering 1, chamfering 1 is chamfer or is the rounding arc angle.
In conjunction with the piston pin clamping spring tightness in use and the operability of actual production, the both ends of the surface of body 2 and can and the side that leans of jump ring groove 3 sidewalls between chamfer be β, β is preferable between 5 °～10 °.
The cross section of body 2 is rounded, and the two end part of body 2 are circular cone shape.
As another kind of mode of execution; The two end part of body 2 are cone table shape; Any limit, two end part that body 2 is cone table shape does not lean with jump ring groove 3 sidewalls, and its shape can be adjusted according to the difference of actual jump ring body 2, for example triangular frustum or tetragonous cone table.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as chamfering 1, body 2, piston pin clamping spring groove 3 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (5)
1. a piston pin clamping spring comprises being the circular-arc body of bar shaped (2), it is characterized in that, the both ends of the surface of described body (2) and can and the side that leans of jump ring groove (3) sidewall between all have chamfering (1).
2. piston pin clamping spring according to claim 1 is characterized in that, described chamfering (1) is chamfer or is the rounding arc angle.
3. piston pin clamping spring according to claim 2 is characterized in that, the two end part of described body (2) are cone table shape.
4. according to the piston pin clamping spring of claim 2 or 3, it is characterized in that the inclination angle of described chamfer is 5 °～10 °.
5. piston pin clamping spring according to claim 4 is characterized in that the cross section of described jump ring is rounded, and the two end part of described body (2) are circular cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015065 CN202580003U (en) | 2012-01-13 | 2012-01-13 | Piston pin clamping spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015065 CN202580003U (en) | 2012-01-13 | 2012-01-13 | Piston pin clamping spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580003U true CN202580003U (en) | 2012-12-05 |
Family
ID=47249416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220015065 Expired - Fee Related CN202580003U (en) | 2012-01-13 | 2012-01-13 | Piston pin clamping spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580003U (en) |
-
2012
- 2012-01-13 CN CN 201220015065 patent/CN202580003U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140113 |