CN202220674U - Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod - Google Patents
Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod Download PDFInfo
- Publication number
- CN202220674U CN202220674U CN2011202835892U CN201120283589U CN202220674U CN 202220674 U CN202220674 U CN 202220674U CN 2011202835892 U CN2011202835892 U CN 2011202835892U CN 201120283589 U CN201120283589 U CN 201120283589U CN 202220674 U CN202220674 U CN 202220674U
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- piston
- oil
- connection rod
- hole
- skirt
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Abstract
The utility model relates to a cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod. A pin hole is arranged on a piston skirt, a connection rod is hinged with the piston skirt by a piston pin, a connection rod liner is mounted between the connection rod and the piston pin, a piston liner is mounted between the piston pin and the pin hole. A skirt oil hole is arranged on the inner side wall of the piston skirt, a nozzle is arranged in the skirt oil hole. An annular oil collection groove is arranged in a piston head, an annular spring slice is mounted in an opening of the annular oil collection groove, an oil inlet clearance is opened on the spring slice and corresponded with the skirt oil hole. An oil supply hole is arranged on an inner wall of the annular oil collection groove and the annular oil collection groove is communicated with the space on the top of the connection rod by the oil supply hole. A connection rod oil hole is arranged on the top of the connection rod, a liner oil hole is arranged on the connection rod liner and correspondingly communicated with the connection rod oil hole and a semi-circle of a liner lubricant path in same circle with the liner oil hole is arranged on the inner perimeter wall of the connection rod liner. The cooling lubricating structure has the advantages of artful structure and good lubricating effect and can guarantee the long time and reliable operation of the piston connection rod.
Description
Technical field
The utility model belongs to technical field of internal combustion engines, specifically relates to a kind of cooling and lubricating structure that is used for the stroke piston combustion engine piston rod.
Background technique
Be known that the wrist pin and the piston bushing of internal combustion engine, the connecting rob bushing organic oil comes cooling and lubricating, and prevents to block or burn.The machine oil of the ejection through the jet pipe space that has for example proposed arrives in the annular oil trap; Because the to-and-fro motion of piston; Make the machine oil vibration in the annular oil trap, generation is splashed, and makes wrist pin, piston bushing and connecting rob bushing obtain cooling and lubricated; But in running, produce cooling and lubricated insufficient sometimes, more abundant in order to cool off and to lubricate.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the existing technology, and a kind of cooling and lubricating structure that is used for the stroke piston combustion engine piston rod is provided, and its structure is ingenious, and high lubricating effect can ensure the long-time reliable operation of piston rod.
The technological scheme that provides according to the utility model: a kind of cooling and lubricating structure that is used for the stroke piston combustion engine piston rod, connecting rod is through wrist pin and piston hinge, and piston comprises piston skirt and piston crown; It is characterized in that: said piston skirt is provided with pin-and-hole, and said connecting rod is hinged through wrist pin and the piston skirt that is contained in the pin-and-hole, between connecting rod and the wrist pin connecting rob bushing is housed, and between wrist pin and the pin-and-hole piston bushing is housed; The madial wall of said piston skirt is provided with the skirt section oilhole, is provided with nozzle in the oilhole of skirt section; Be provided with annular oil trap in the said piston crown, the opening of annular oil trap is equipped with the spring sheet of an annular, on spring sheet, has the oil-feed space, and the oil-feed space is corresponding with described skirt section oilhole; The inwall of said annular oil trap is provided with oil supply hole, and annular oil trap is connected through the space of oil supply hole with the connecting rod top; Said connecting rod top is provided with the connecting rod oilhole, and said connecting rob bushing is provided with the lining oilhole with the corresponding connection of connecting rod oilhole, and the connecting rob bushing inner circle wall is provided with half-turn and the lining oil leab of lining oilhole on same circumference.
As the further improvement of the utility model, the aperture of said oil supply hole is between Φ 2 ~ Φ 6.
As the further improvement of the utility model, the center line of said oil supply hole and the central axis of piston have certain included angle.Preferably, this angle is between 60 ° ~ 70 °.
As the further improvement of the utility model, the outer end of said connecting rod oilhole is the conical hopper shape.
The utility model compared with prior art, advantage is: the utility model structure is ingenious, through annular oil trap is set at piston crown; And on annular oil trap, offer oil supply hole; Make a part of cutting oil to pass through in the space at oil supply hole entering connecting rod top, and get in the lining oil leab, connecting rob bushing, piston bushing and wrist pin are lubricated via connecting rod oilhole and lining oilhole owing to the to-and-fro motion of piston; Improve the cooling and lubricating condition between them; Reduce the surface friction drag that they rotate each other, high lubricating effect can ensure the long-time reliable operation of piston rod.
Description of drawings
Fig. 1 is the structure front view of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.
Description of reference numerals: 1-piston crown, 2-annular oil trap, 3-connecting rob bushing, 4-piston spring sheet, 5-piston bushing, 6-piston skirt, 7-wrist pin, 8-oil-feed space, 9-connecting rod, 10-nozzle, 11-oil supply hole, 12-connecting rod oilhole, 13-skirt section oilhole, 14-lining oilhole, 15-lining oil leab.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
As shown in the figure: the utility model relates to a kind of cooling and lubricating structure that is used for stroke piston combustion engine piston rod 9, and said connecting rod 9 is hinged through wrist pin 7 and piston, and piston comprises piston skirt 6 and piston crown 1; Said piston skirt 6 is provided with pin-and-hole, and said connecting rod 9 is hinged with piston skirt 6 through the wrist pin 7 that is contained in the pin-and-hole, between connecting rod 9 and the wrist pin 7 connecting rob bushing 3 is housed, and piston bushing 5 is housed between wrist pin 7 and the pin-and-hole; The madial wall of said piston skirt 6 is provided with skirt section oilhole 13, is provided with nozzle 10 in the skirt section oilhole 13; Be provided with annular oil trap 2 in the said piston crown 1, the opening of annular oil trap 2 is equipped with the spring sheet 4 of an annular, on spring sheet 4, has oil-feed space 8, and oil-feed space 8 is corresponding with described skirt section oilhole 13; The inwall of said annular oil trap 2 is provided with oil supply hole 11, and annular oil trap 2 is connected through the space of oil supply hole 11 with connecting rod 9 tops; Said connecting rod 9 tops are provided with connecting rod oilhole 12, and said connecting rob bushing 3 is provided with the lining oilhole 14 with the 12 corresponding connections of connecting rod oilhole, and connecting rob bushing 3 inner circle walls are provided with half-turn and the lining oil leab 15 of lining oilhole 14 on same circumference.
Like Fig. 1, shown in Figure 2, be the cutting oil inlet of control link 9 head rooms, the aperture of said oil supply hole 11 preferably is arranged between Φ 2 ~ Φ 6.For making the cutting oil that gets in connecting rod 9 head rooms can get into smoothly in connecting rob bushing 3 and the piston bushing 5, the center line of said oil supply hole 11 and the central axis of piston should be arranged to certain included angle α, and this angle is preferably between 60 ° ~ 70 °.Simultaneously, the outer end of connecting rod oilhole 12 preferably is set to the conical hopper shape.
During concrete the application; Nozzle 10 sprays into cutting oil in the annular oil trap 2 through skirt section oilhole 13 and oil-feed space 8; Because the spring sheet 4 on annular oil trap 2 openings has certain elasticity, and the cutting oil that sprays into is shaken in annular oil trap 2; Because concussion effect; There is 1/3rd cutting oil to get in the space at connecting rods 9 tops approximately, gets in the lining oil leabs 15 via connecting rod oilhole 12 and lining oilhole 14 then, connecting rob bushing 3, piston bushing 5 and wrist pin 7 are lubricated through oil supply hole 11; Improve the cooling and lubricating condition between them; Reduce the surface friction drag that they rotate each other, high lubricating effect can ensure piston rod 9 long-time reliable operations.Foundation is based on wrist pin wrist pin piston piston.
Claims (5)
1. cooling and lubricating structure that is used for the stroke piston combustion engine piston rod, connecting rod (9) is hinged through wrist pin (7) and piston, and piston comprises piston skirt (6) and piston crown (1); It is characterized in that: said piston skirt (6) are provided with pin-and-hole; Said connecting rod (9) is hinged with piston skirt (6) through the wrist pin (7) that is contained in the pin-and-hole; Between connecting rod (9) and the wrist pin (7) connecting rob bushing (3) is housed, piston bushing (5) is housed between wrist pin (7) and the pin-and-hole; The madial wall of said piston skirt (6) is provided with skirt section oilhole (13), is provided with nozzle (10) in the skirt section oilhole (13); Be provided with annular oil trap (2) in the said piston crown (1); The opening of annular oil trap (2) is equipped with the spring sheet (4) of an annular; On spring sheet (4), have oil-feed space (8), oil-feed space (8) are corresponding with described skirt section oilhole (13); The inwall of said annular oil trap (2) is provided with oil supply hole (11), and annular oil trap (2) is connected through the space of oil supply hole (11) with connecting rod (9) top; Said connecting rod (9) top is provided with connecting rod oilhole (12); Said connecting rob bushing (3) is provided with the lining oilhole (14) with the corresponding connection of connecting rod oilhole (12), and connecting rob bushing (3) inner circle wall is provided with half-turn and the lining oil leab (15) of lining oilhole (14) on same circumference.
2. the cooling and lubricating structure that is used for the stroke piston combustion engine piston rod as claimed in claim 1 is characterized in that: the aperture of said oil supply hole (11) is between Φ 2 ~ Φ 6.
3. the cooling and lubricating structure that is used for the stroke piston combustion engine piston rod as claimed in claim 1 is characterized in that: the center line of said oil supply hole (11) and the central axis of piston have certain included angle (α).
4. the cooling and lubricating structure that is used for the stroke piston combustion engine piston rod as claimed in claim 3 is characterized in that: the angle (α) of the center line of said oil supply hole (11) and the central axis of piston is between 60 ° ~ 70 °.
5. the cooling and lubricating structure that is used for the stroke piston combustion engine piston rod as claimed in claim 1 is characterized in that: the outer end of said connecting rod oilhole (12) is the conical hopper shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202835892U CN202220674U (en) | 2011-08-05 | 2011-08-05 | Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202835892U CN202220674U (en) | 2011-08-05 | 2011-08-05 | Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220674U true CN202220674U (en) | 2012-05-16 |
Family
ID=46042701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202835892U Withdrawn - After Issue CN202220674U (en) | 2011-08-05 | 2011-08-05 | Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220674U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330584A (en) * | 2011-08-05 | 2012-01-25 | 无锡开普动力有限公司 | Cooling lubricating structure used for piston connection rod of reciprocating piston internal combustion engine |
| CN105332813A (en) * | 2014-08-11 | 2016-02-17 | 强道前 | Engine piston |
| CN106704022A (en) * | 2017-01-25 | 2017-05-24 | 无锡开普机械有限公司 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
| CN111120142A (en) * | 2019-11-19 | 2020-05-08 | 潍柴动力股份有限公司 | Lubricating system and method for improving reliability of large-cylinder-diameter diesel engine |
| CN111622857A (en) * | 2019-02-28 | 2020-09-04 | 强莉莉 | Single oil chamber piston |
-
2011
- 2011-08-05 CN CN2011202835892U patent/CN202220674U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330584A (en) * | 2011-08-05 | 2012-01-25 | 无锡开普动力有限公司 | Cooling lubricating structure used for piston connection rod of reciprocating piston internal combustion engine |
| CN102330584B (en) * | 2011-08-05 | 2012-12-19 | 无锡开普动力有限公司 | Cooling lubricating structure used for piston connection rod of reciprocating piston internal combustion engine |
| WO2013020478A1 (en) * | 2011-08-05 | 2013-02-14 | 无锡开普动力有限公司 | Cooling and lubricating structure for use on piston rod of reciprocating internal combustion engine |
| CN105332813A (en) * | 2014-08-11 | 2016-02-17 | 强道前 | Engine piston |
| CN106704022A (en) * | 2017-01-25 | 2017-05-24 | 无锡开普机械有限公司 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
| CN111622857A (en) * | 2019-02-28 | 2020-09-04 | 强莉莉 | Single oil chamber piston |
| CN111120142A (en) * | 2019-11-19 | 2020-05-08 | 潍柴动力股份有限公司 | Lubricating system and method for improving reliability of large-cylinder-diameter diesel engine |
| CN111120142B (en) * | 2019-11-19 | 2021-05-18 | 潍柴动力股份有限公司 | Lubricating system and method for improving reliability of large-cylinder-diameter diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120516 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |