CN204961099U - Prevent that piston pin lacks diesel engine piston that round pin was stung to oil - Google Patents
Prevent that piston pin lacks diesel engine piston that round pin was stung to oil Download PDFInfo
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- CN204961099U CN204961099U CN201520641883.4U CN201520641883U CN204961099U CN 204961099 U CN204961099 U CN 204961099U CN 201520641883 U CN201520641883 U CN 201520641883U CN 204961099 U CN204961099 U CN 204961099U
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Abstract
The utility model provides a prevent that piston pin lacks diesel engine piston that round pin was stung to oil, includes piston only, piston boss and piston pin hole, the piston pin hole is seted up in the center of piston boss, is equipped with the oil storage chamber in the infusion set's of piston pin hole top side. Because infusion set's at the piston pin hole top both sides face has set up the oil storage chamber, the diesel engine when the piston reciprocates, will produce relative rotation between piston pin and the piston pin hole in the oil storage chamber is gone into to the splash lubrication oil stream that the high -speed operation of during operation bent axle produced, and the sufficient lubrication between piston pin and the piston pin hole can be guaranteed to the lubricating oil of storing this moment in the oil storage chamber, can eliminate the not enough of among prior art existence. Being equipped with in the both sides of piston pin hole and drawing the oil distribution cones face, draw oil distribution cones face and oil storage chamber and communicate with each other, enable during more lubricating oil introduces the oil storage chamber, lubricated effect is better.
Description
Technical field
The utility model relates to diesel engine manufacturing technology field, and particularly relating to diesel engine has piston element.
Background technique
Along with the development people of science and technology propose higher requirement to the reliability of diesel engine and energy-saving index, in diesel engine, piston is one of core component of diesel engine, be commonly called as " heart " for diesel engine, it is arranged in cylinder liner, by forming the matching pair of sealing between piston ring and cylinder liner, the explosive power produced after fuel combustion acts on the top of piston, by wrist pin, connecting rod, promote crank rotation, realize Power output.It can thus be appreciated that mechanical load and the heat load of what piston bore is alternation are one of worst key components and partss of operating conditions in diesel engine.The function of piston bears gas pressure, and pass to connecting rod by wrist pin and order about crankshaft rotating.
In existing diesel engine, piston is coordinated with connecting rod small end hole by wrist pin, in the course of the work, between wrist pin with piston, the passing hole axle mode of being rotatably assorted is connected, if lose lubricant oil between piston pin and piston hole, piston can be caused when moving up and down to produce one side friction, and can produce scuffing of cylinder bore time serious, this not only affects the power stage of diesel engine, and can cylinder liner abrasion be accelerated, shorten the working life of diesel engine.
Conscientiously research and analyse through claimant and test, this is that the matching structure design of existing piston pin and piston hole is unreasonable relevant, owing to being typical shaft hole matching between piston pin and piston hole, and the carrying width of the piston hole of piston both sides is less, lack the space storing lubricant oil between the two, the generation of above-mentioned defect must be caused.
Model utility content:
The purpose of this utility model is to provide a kind of diesel engine piston preventing wrist pin oil starvation to sting pin, it can ensure there is good lubricating condition between piston pin and piston hole, according to both relative positions in the course of the work, design the space being convenient to store lubricant oil, thus overcome many deficiencies of the existence of existing technology.
Prevent wrist pin oil starvation to sting a diesel engine piston for pin, comprise piston only, piston pin boss and piston pin hole, piston pin hole is opened in the central position of piston pin boss, it is characterized in that: above the horizontal center line of piston pin hole, side is provided with shoe cream room.
Further, the bi-side above the horizontal center line of piston pin hole are provided with shoe cream room.
Further, be provided with in the upside of the horizontal center line of piston pin hole both ends of the surface and draw the oily conical surface, draw the oily conical surface and communicate with shoe cream room.
Further, described shoe cream room is spaced apart along the axial direction of piston pin hole.
Further, the sectional shape of shoe cream room is circular arc.
Because above the horizontal center line of piston pin hole, bi-side are provided with shoe cream room, the diesel engine splash lubrication oil that operationally crankshaft high-speed running produces flows in shoe cream room, when piston moves up and down, will produce relative rotation between piston pin and piston hole, the lubricant oil be now stored in shoe cream room can ensure the sufficient lubrication between piston pin and piston hole, can eliminate the deficiencies in the prior art.Be provided with in the both sides of piston pin hole and draw the oily conical surface, draw the oily conical surface and communicate with shoe cream room, more lubricant oil can be made to introduce in shoe cream room, and lubrication effect is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the end-face structure schematic diagram of piston pin hole;
In figure: 1-piston only; 2-piston pin boss; 3-piston pin hole; 4-shoe cream room; 5-draws the oily conical surface.
Embodiment
Specific embodiments of the present utility model is described in detail below in conjunction with accompanying drawing:
Embodiment 1: a kind of diesel engine piston preventing wrist pin oil starvation to sting pin, comprise piston only 1, piston pin boss 2 and piston pin hole 3, piston pin hole 3 is opened in the central position of piston pin boss 2, bi-side above the horizontal center line of piston pin hole 3 are provided with shoe cream room 4, be provided with in the both sides of piston pin hole 3 and draw the oily conical surface 5, draw the oily conical surface 5 to communicate with shoe cream room 4, the sectional shape of shoe cream room 4 is circular arc.
Embodiment 2: in upper example, and described shoe cream room 4 is spaced apart along the axial direction of piston pin hole 3.
The foregoing is only a preferred embodiment of the present utility model; not in order to limit the utility model; every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.
Claims (5)
1. the diesel engine piston preventing wrist pin oil starvation to sting pin, comprise piston only (1), piston pin boss (2) and piston pin hole (3), piston pin hole (3) is opened in the central position of piston pin boss (2), it is characterized in that: be provided with shoe cream room (4) in the side, top of the horizontal center line of piston pin hole (3).
2. prevent wrist pin oil starvation to sting the diesel engine piston of pin according to claim 1, it is characterized in that: on the bi-side of the top of the horizontal center line of piston pin hole (3), be provided with shoe cream room (4).
3. prevent wrist pin oil starvation to sting the diesel engine piston of pin according to claim 1, it is characterized in that: be provided with in the upside of the horizontal center line of piston pin hole (3) both ends of the surface and draw the oily conical surface (5), draw the oily conical surface (5) and communicate with shoe cream room (4).
4. prevent wrist pin oil starvation to sting the diesel engine piston of pin according to claim 1, it is characterized in that: described shoe cream room (4) is spaced apart along the axial direction of piston pin hole (3).
5. prevent wrist pin oil starvation to sting the diesel engine piston of pin according to claim 1, it is characterized in that: the sectional shape of shoe cream room (4) is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641883.4U CN204961099U (en) | 2015-08-24 | 2015-08-24 | Prevent that piston pin lacks diesel engine piston that round pin was stung to oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641883.4U CN204961099U (en) | 2015-08-24 | 2015-08-24 | Prevent that piston pin lacks diesel engine piston that round pin was stung to oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961099U true CN204961099U (en) | 2016-01-13 |
Family
ID=55056170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520641883.4U Active CN204961099U (en) | 2015-08-24 | 2015-08-24 | Prevent that piston pin lacks diesel engine piston that round pin was stung to oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187695A (en) * | 2021-05-24 | 2021-07-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston, compressor and refrigerator |
-
2015
- 2015-08-24 CN CN201520641883.4U patent/CN204961099U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187695A (en) * | 2021-05-24 | 2021-07-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston, compressor and refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |