CN103147873A - Engine piston mechanism and machining method thereof as well as corresponding engine and automobile - Google Patents
Engine piston mechanism and machining method thereof as well as corresponding engine and automobile Download PDFInfo
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- CN103147873A CN103147873A CN2013101074972A CN201310107497A CN103147873A CN 103147873 A CN103147873 A CN 103147873A CN 2013101074972 A CN2013101074972 A CN 2013101074972A CN 201310107497 A CN201310107497 A CN 201310107497A CN 103147873 A CN103147873 A CN 103147873A
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Abstract
The invention discloses an engine piston mechanism which comprises a piston head, a piston pin seat fixedly connected to the end surface of the piston head, and a piston skirt part arranged at the periphery of the piston pin seat, wherein the piston skirt part comprises two support parts and a roller column; the two support parts are fixedly connected to the end surface of the piston head and are symmetrically arranged at the two sides of the piston pin seat along the axial direction of the piston pin seat; and the roller column is fixedly connected to the support parts and is contacted with the wall of a cylinder in a rolling way when a piston makes reciprocating motion. The invention also discloses a machining method of the engine piston mechanism, and an engine and an automobile which are respectively provided with the engine piston mechanism. According to the engine piston mechanism, the piston skirt part and the wall of the piston are in rolling friction, so that the frictional loss of the piston skirt part and the wall of the cylinder can be reduced, and the fuel economy is improved. The engine piston mechanism is suitable for various automobile engines, and is further applied to various automobiles.
Description
Technical field
The invention belongs to automotive field, relate to motor car engine, is a kind of engine piston mechanism, its processing method and corresponding motor and automobile specifically.
Background technique
Piston is motor car engine " heart ", bears mechanical load and the heat load of alternation, is one of worst key components and parts of operating conditions in motor.The function of piston is to bear gas pressure, and passes to connecting rod by wrist pin and order about crankshaft rotating.Due to piston at high temperature, high pressure, at a high speed, work under the mal-condition of insufficient lubrication, easily break down, concrete reason is as follows:
1. due to connecting rod and piston not point-blank, according to the resolution of forces principle, the huge thrust that gas produces when burning expansion can produce a side pressure that presses to cylinder wall to piston and piston ring, and under the high temperature and high pressure environment in cylinder, between cylinder wall and piston due to thermal effect, its friction factor can not be ignored, and like this, the sliding friction loss between piston and cylinder wall is quite obvious;
2. in the piston linear reciprocating motion process, the piston skirt contacts with cylinder wall, and in high rotating speed high pulling torque running engine, the piston skirt wearing and tearing significantly;
3. piston linear reciprocating motion commutates, and because piston skirt and cylinder wall are that rigidity contacts, the piston skirt easily produces the engine knock noise;
4. (8～12m/s) to-and-fro motion, and speed changes constantly, this has just produced very large inertial force to piston, makes piston be subject to very large additional load with very high speed in cylinder.
In addition, existing piston machining process is complicated, and accuracy of manufacturing requires high, complex process, and cost of production is high.
Summary of the invention
Be to solve the above deficiency that exists in prior art, the invention provides a kind of engine piston mechanism, be rolling friction between the piston skirt of this mechanism and piston wall, reduced the frictional loss of piston skirt and cylinder wall, improved fuel economy;
Another object of the present invention is to provide the motor with above-mentioned engine piston mechanism;
The 3rd purpose of the present invention is to provide the automobile with the motor of above-mentioned engine piston mechanism;
A further object of the invention is to provide the processing method of above-mentioned engine piston mechanism.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of engine piston mechanism, comprise piston crown, be fixed on the piston pin boss on the piston crown end face and be positioned at the piston skirt of piston pin boss periphery, described piston skirt comprises that two are fixed on the piston crown end face and axially are symmetrically set in the supporting portion of its both sides, the roller that is fixed on the supporting portion and rolls and contact with cylinder wall when the reciprocating motion of the pistons along piston pin boss.
As limitation of the invention, the supporting portion of described each side includes two supports that arrange along the piston pin boss axially spaced-apart, the bottom of support is fixed on the piston crown end face, the top is provided with the roller pin-and-hole, the two ends of roller pin are fixed in the jump-ring slot of roller pin-and-hole of two stands by jump ring respectively, and roller is set in outside roller pin.
As the restriction to aforesaid way, described support is provided with the boss that protrudes to the piston crown end face, is fixedly connected with spring between boss and piston crown.
As to another kind of restriction the of the present invention, be provided with vertically oil storage tank on described roller pin-and-hole inwall.
As of the present invention the third limited, described piston pin boss be two vertically the interval arrange with the wrist pin pore structure, be provided with vertically oil storage tank on the piston pin hole inwall.
As to the 4th kind of restriction of the present invention, the outer surface of described roller is attached with graphite layer.
The present invention also has a kind of restriction, and on described piston crown periphery, the edge is circumferentially with three road piston grooves; Also be provided with many oilholes on piston crown.
The present invention also provides a kind of motor, and it is with the engine piston mechanism of aforementioned mechanism.
The present invention also provides a kind of automobile, and it comprises aforesaid motor.
The present invention discloses the processing method of a kind of above-mentioned engine piston mechanism, comprise the following steps:
1. take the periphery of piston crown as thick benchmark, carry out the roughing of end face and the periphery of piston crown;
2. take the both sides end face of piston pin boss and piston pin hole as smart benchmark, carry out successively Transverse plane, piston groove, the outer circumferential face of piston crown, the fine finishing of oilhole on the both sides end face, piston pin hole, roller pin-and-hole, location hole of the spring, spring of piston pin boss.
Owing to having adopted technique scheme, the present invention compared with prior art, obtained technological progress is:
1. contact for rolling between the roller of piston skirt and cylinder wall, compare with conventional piston, the area of contact of roller and cylinder wall is little, has reduced the wearing and tearing of piston, has improved the working life of motor;
2. roller is fixed between two stands by roller pin, and by the fixing position of roller pin of jump ring, makes roller not only can realize circumferential rotation, and play vertically, has guaranteed the stability of the linear reciprocating motion of piston when the high rotating speed high pulling torque of motor;
3. a side of support by spring supporting, has realized the flexible contact of roller and cylinder wall, and when making the reciprocating motion of the pistons commutation, piston crown is more steady, has reduced noise; And use spring supporting, guarantee that not only support has enough intensity, has also alleviated the quality of piston skirt;
4. piston pin boss be two vertically the interval arrange with the wrist pin pore structure, this structure has reduced the total quality of piston, the piston lightweight is conducive to reduce the impact force to wrist pin, connecting rod, bent axle, the working life of improving component; In addition, piston mass is little, and the inertial force during reciprocating motion of the pistons is just little, and the more little conversion of heat into kinetic energy that more is conducive to burning mixture of inertial force reduces the loss of mechanical work;
5. the oil storage tank of the oil storage tank of roller pin-and-hole and piston pin hole be used for to store lubricant oil, plays lubricated, off-load, cooling effect;
6. the graphite of roller outer surface has the effect that reduces to rub;
7. the processing method of piston mechanism is changed on the basis of traditional diamond-making technique, can guarantee the precision of piston, and save production cost.
Engine piston of the present invention mechanism is applicable on various motor car engines, be applied to further on various automobiles on.
Description of drawings
Do further to describe in detail below in conjunction with 1 couple of the present invention of drawings and the specific embodiments.
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the assembling schematic diagram of Fig. 1;
Fig. 3 is the left view of Fig. 1.
In figure: 1, roller; 2, roller pin; 3, jump ring; 4, support; 5, spring; 6, piston crown; 7, piston groove; 8, piston pin boss; 9, oil storage tank; 10, oilhole; 11, piston pin hole.
Embodiment
A kind of engine piston mechanism, structure comprises piston crown 6, piston skirt and piston pin boss 8 as shown in Figure 1 to Figure 3.
Piston crown 6 is provided with four oilholes 10, and on periphery, the edge is circumferentially with three road piston grooves 7, as shown in Figure 3.
Piston pin boss 8 is fixed on the end face of piston crown 6, is the structure with piston pin hole 11 of two interval settings vertically, is provided with vertically oil storage tank 9 on piston pin hole 11 inwalls.The structure of piston pin boss 8 has reduced the total quality of piston, the piston lightweight is conducive to reduce the impact force to wrist pin, connecting rod, bent axle, and in addition, piston mass is little, inertial force during reciprocating motion of the pistons is just little, the more little conversion of heat into kinetic energy that more is conducive to burning mixture of inertial force.
The piston skirt is fixed on piston crown 6 end faces, comprises two along the axial symmetrically arranged supporting portion of piston pin boss 8, and contacts with cylinder wall rolling when reciprocating motion of the pistons and outer surface is attached with the roller 1 of graphite layer.
The supporting portion of each side includes two supports 4 that arrange along piston pin boss 8 axially spaced-aparts, the bottom of support 4 is fixed on piston crown 6 end faces, the intermediate portion is provided with the boss that protrudes to piston crown 6 end faces, the below of boss is provided with spring 5, and spring 5 bottoms are fixed in the location hole of the spring of piston crown 6.Boss is supported by spring 5, and when making the reciprocating motion of the pistons commutation, the motion of piston skirt is more steady, has reduced noise, and supports with spring 5, can guarantee that not only support 4 has enough intensity, has also alleviated the quality of piston skirt.
The top of support 4 is provided with the roller pin-and-hole, along being circumferentially with jump-ring slot, is provided with vertically oil storage tank on roller pin-and-hole inwall.Be provided with roller pin 2 between two roller pin-and-holes, roller 1 is set in outside roller pin 2, the two ends of roller pin 2 are fixed in two jump-ring slots by jump ring 3 respectively, roller 1 not only can be realized circumferential rotation, and play vertically, guaranteed the stability of the linear reciprocating motion of piston when the high rotating speed high pulling torque of motor.
A kind of motor, the agent structure difference with the prior art of this motor only be its piston mechanism and embodiment 1 identical.
The structure of these motor other parts is same as the prior art.
During engine operation in the present embodiment:
Contact for rolling between roller 1 and cylinder wall, compare with conventional piston, the area of contact of roller 1 and cylinder wall is little, and then has reduced the wearing and tearing of piston, the working life of having improved motor.
A kind of automobile, this automobile difference with the prior art only are that its motor has the identical structure with embodiment 2.
The structure of these automobile other parts is same as the prior art.
A kind of processing method of engine piston mechanism in embodiment 1 comprises the following steps:
1. take the periphery of piston crown 6 as thick benchmark, carry out successively the roughing of end face and the periphery of piston crown 6;
2. take the both sides end face of piston pin boss 8 and piston pin hole 11 as smart benchmark, carry out successively Transverse plane, piston groove 7, the outer circumferential face of piston crown 6, the fine finishing of oilhole 10 on the both sides end face, piston pin hole 11, roller pin-and-hole, location hole of the spring, spring of piston pin boss 8.
Concrete work flow is: piston crown 6 end face roughing → piston crown 6 periphery roughing → piston pin hole 8 both sides end face fine finishing → piston pin hole 11 fine finishing → roller pin-and-hole fine finishing → location hole of the spring fine finishing → spring upper end plane precision process → piston groove 7 fine finishing → piston crown 6 outer circumferential face fine finishing → oilhole 10 fine finishing → piston groove 7 fine finishing.
Claims (10)
1. engine piston mechanism comprises piston crown, is fixed on the piston pin boss on the piston crown end face and is positioned at the piston skirt of piston pin boss periphery,
It is characterized in that:Described piston skirt comprises that two are fixed on the piston crown end face and axially are symmetrically set in the supporting portion of its both sides, the roller that is fixed on the supporting portion and rolls and contact with cylinder wall when the reciprocating motion of the pistons along piston pin boss.
2. engine piston according to claim 1 mechanism,
It is characterized in that:The supporting portion of each side includes two supports that arrange along the piston pin boss axially spaced-apart, the bottom of support is fixed on the piston crown end face, the top is provided with the roller pin-and-hole, and the two ends of roller pin are fixed in the jump-ring slot of roller pin-and-hole of two stands by jump ring respectively, and roller is set in outside roller pin.
3. engine piston according to claim 2 mechanism,
It is characterized in that:Described support is provided with the boss that protrudes to the piston crown end face, is fixedly connected with spring between boss and piston crown.
4. engine piston according to claim 2 mechanism,
It is characterized in that:Be provided with vertically oil storage tank on described roller pin-and-hole inwall.
5. engine piston according to claim 1 mechanism,
It is characterized in that:Described piston pin boss be two vertically the interval arrange with the wrist pin pore structure, be provided with vertically oil storage tank on the piston pin hole inwall.
6. engine piston according to claim 1 mechanism,
It is characterized in that:The outer surface of described roller is attached with graphite layer.
7. engine piston according to claim 1 mechanism,
It is characterized in that:On described piston crown periphery, the edge is circumferentially with three road piston grooves; Also be provided with many oilholes on piston crown.
8. motor,
It is characterized in that:It comprises as the described engine piston of any one in claim 1-7 mechanism.
9. automobile,
It is characterized in that:It comprises motor as claimed in claim 8.
10. the processing method of the described engine piston of any one mechanism in claim 1-7,
It is characterized in thatIt comprises the following steps:
1. take the periphery of piston crown as thick benchmark, carry out successively the roughing of end face and the periphery of piston crown;
2. take the both sides end face of piston pin boss and piston pin hole as smart benchmark, carry out successively Transverse plane, piston groove, the outer circumferential face of piston crown, the fine finishing of oilhole on the both sides end face, piston pin hole, roller pin-and-hole, location hole of the spring, spring of piston pin boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107497.2A CN103147873B (en) | 2013-03-30 | 2013-03-30 | Engine piston mechanism and machining method thereof as well as corresponding engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107497.2A CN103147873B (en) | 2013-03-30 | 2013-03-30 | Engine piston mechanism and machining method thereof as well as corresponding engine and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103147873A true CN103147873A (en) | 2013-06-12 |
| CN103147873B CN103147873B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310107497.2A Expired - Fee Related CN103147873B (en) | 2013-03-30 | 2013-03-30 | Engine piston mechanism and machining method thereof as well as corresponding engine and automobile |
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| Country | Link |
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| CN (1) | CN103147873B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723239A (en) * | 2015-03-31 | 2015-06-24 | 西峡县内燃机进排气管有限责任公司 | Turbosuperchager turbine box refined standard machining process and clamp |
| CN107000028A (en) * | 2014-10-17 | 2017-08-01 | Ks科尔本施密特有限公司 | Method for manufacturing piston |
| CN112901365A (en) * | 2021-02-10 | 2021-06-04 | 李斯特技术中心（上海）有限公司 | Combined type piston and engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069494U (en) * | 1990-07-05 | 1991-01-16 | 王桂兰 | Air compressor piston for car |
| KR20020015118A (en) * | 2000-08-21 | 2002-02-27 | 이계안 | Piston |
| CN2806797Y (en) * | 2005-06-21 | 2006-08-16 | 廖伯成 | Rolling operating engine |
| CN1944994A (en) * | 2005-10-08 | 2007-04-11 | 山东滨州渤海活塞股份有限公司 | Welded forged steel integrated piston and its producing method |
| JP2008038748A (en) * | 2006-08-07 | 2008-02-21 | Mitsutatsu Ogasawara | Piston of reciprocating internal combustion engine |
| CN201187359Y (en) * | 2008-05-08 | 2009-01-28 | 重庆渝安创新科技(集团)有限公司 | Small discharge micro-vehicle engine piston |
| CN102797584A (en) * | 2012-06-20 | 2012-11-28 | 石家庄金刚内燃机零部件集团有限公司 | Energy-saving piston for gas engine |
-
2013
- 2013-03-30 CN CN201310107497.2A patent/CN103147873B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069494U (en) * | 1990-07-05 | 1991-01-16 | 王桂兰 | Air compressor piston for car |
| KR20020015118A (en) * | 2000-08-21 | 2002-02-27 | 이계안 | Piston |
| CN2806797Y (en) * | 2005-06-21 | 2006-08-16 | 廖伯成 | Rolling operating engine |
| CN1944994A (en) * | 2005-10-08 | 2007-04-11 | 山东滨州渤海活塞股份有限公司 | Welded forged steel integrated piston and its producing method |
| JP2008038748A (en) * | 2006-08-07 | 2008-02-21 | Mitsutatsu Ogasawara | Piston of reciprocating internal combustion engine |
| CN201187359Y (en) * | 2008-05-08 | 2009-01-28 | 重庆渝安创新科技(集团)有限公司 | Small discharge micro-vehicle engine piston |
| CN102797584A (en) * | 2012-06-20 | 2012-11-28 | 石家庄金刚内燃机零部件集团有限公司 | Energy-saving piston for gas engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107000028A (en) * | 2014-10-17 | 2017-08-01 | Ks科尔本施密特有限公司 | Method for manufacturing piston |
| CN104723239A (en) * | 2015-03-31 | 2015-06-24 | 西峡县内燃机进排气管有限责任公司 | Turbosuperchager turbine box refined standard machining process and clamp |
| CN104723239B (en) * | 2015-03-31 | 2017-11-03 | 西峡县内燃机进排气管有限责任公司 | Turbocharger turbine box body essence benchmark processing technology and fixture |
| CN112901365A (en) * | 2021-02-10 | 2021-06-04 | 李斯特技术中心（上海）有限公司 | Combined type piston and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103147873B (en) | 2015-05-27 |
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