CN108547946A - Piston pin - Google Patents
Piston pin Download PDFInfo
- Publication number
- CN108547946A CN108547946A CN201810265666.8A CN201810265666A CN108547946A CN 108547946 A CN108547946 A CN 108547946A CN 201810265666 A CN201810265666 A CN 201810265666A CN 108547946 A CN108547946 A CN 108547946A
- Authority
- CN
- China
- Prior art keywords
- piston pin
- hole
- lightening hole
- lightening
- ontology
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
- F16J1/18—Securing of gudgeon-pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to the technical field of automobile engines, and provides a piston pin which comprises a piston pin body with a through hole inside, wherein a lubricating oil groove and a lightening hole are formed in the piston pin body; the through hole specifically comprises a first through hole and a second through hole, wherein the first through hole and the second through hole are in a truncated cone shape, and the smaller-caliber ends of the first through hole and the second through hole are communicated; the lubricating oil groove is formed in the end face close to the piston pin body and is evenly distributed in the axial direction of the piston pin body, and the lightening holes are formed between the lubricating oil groove and the through holes. The invention has the advantages that: (1) the structure is simple, and the use is convenient; (2) the cooling and lubrication of the piston pin are facilitated, the piston pin abrasion is reduced, and the risk of damage is reduced; (3) under the condition of ensuring the strength, the piston connecting rod system has low energy consumption during working; (4) the weight of the piston pin is reduced, the inertia force of reciprocating motion is reduced, and the energy loss is reduced.
Description
Technical field
The present invention relates to technical field of automobile engine more particularly to a kind of piston pins.
Background technology
At present in automobile engine industry, piston component includes piston, piston ring, piston pin.Piston pin is connection piston
With the key part of connecting rod, effect be on piston gas pressure and inertia force company is passed to by key seat and piston pin
Bar, to complete conversion of the kinetic energy to thermal energy.Piston pin usually use mild steel and alloy steel making, pin surface have high rigidity,
High intensity, and there is toughness.
The periphery of piston pin is all to use smooth cylindrical profile at present, it is internal then using cylindrical hole pattern,
There are following two drawbacks：(1) piston boss temperature is higher, also, piston pin does oscillating motion in key seat, is unfavorable for realizing
Good lubrication, piston pin are usually frayed very serious；(2) each cross section of traditional piston pin is designed as same shape, and with
The maximum, force design born when its work, but in fact, the work stressing conditions of each cross section of piston pin are different；One
Taste is designed to that consistent shape will bring piston intensity superfluous, and corrresponding quality is big, and inertia when piston rod works is big, consumes energy
Greatly.
Accordingly, be badly in need of at present it is a kind of not only wear-resistant, but also can in the case where ensuring intensity, realize piston connecting bar system work
When consume energy small piston pin.
Invention content
Technical problem to be solved by the present invention lies in provide it is a kind of not only wear-resistant, but also can in the case where ensuring intensity,
Consume energy small piston pin when realizing piston connecting bar system work.
The present invention solves above-mentioned technical problem using following technical scheme：
A kind of piston pin, includes piston pin ontology of the inside with through-hole, the piston pin ontology be equipped with oil-way and
Lightening hole；The through-hole specifically includes first through hole, the second through-hole, and first through hole and the second through-hole are in truncated cone shape, and the two
It connects compared with small-caliber end；The oil-way is disposed in proximity on the end face of piston pin ontology, and along piston pin body shaft
It is uniformly distributed upwards, lightening hole is then set between oil-way and through-hole.
As one of the preferred embodiment of the present invention, the piston pin ontology is cylindrical piston pin, inside crossed it is logical
Hole；The piston pin ontology is consistent with the axis of through-hole.
One of preferred embodiment as the present invention, the oil-way is specially eight, is respectively uniformly distributed in piston pin
In the both ends of the surface of ontology.
One of preferred embodiment as the present invention, the lightening hole are taper lightening hole, extending direction and piston pin sheet
The axis of body is parallel.
One of preferred embodiment as the present invention, the lightening hole is specially eight, is respectively uniformly distributed in piston pin sheet
In the both ends of the surface of body.
One of preferred embodiment as the present invention, the lightening hole on an end face of the piston pin ontology is respectively first
Lightening hole, the second lightening hole, third lightening hole and the 4th lightening hole；First lightening hole is located at same axis with third lightening hole
On line, the second lightening hole, the 4th lightening hole are then located on another straight line vertical with above-mentioned axis.
One of preferred embodiment as the present invention, first lightening hole, the axis of third lightening hole and the second lightening hole,
The axis of 4th lightening hole intersects at the center of through-hole.
The present invention compared with prior art the advantages of be：
(1) simple in structure, it is easy to use；
(2) two terminals of piston pin body outer surface add eight oil-ways, engine at work, in oil-way
Oily presence can be maintained constantly, can form oil film always on piston pin body outer surface, be conducive to the cooling and lubricating of piston pin, subtracted
Few wrist pin wear, reduces the risk of destruction；
(3) shape for changing piston pin body through-holes realizes piston connecting bar system work in the case where ensuring intensity
When consume energy it is small；
(4) it is additionally provided with lightening hole on two end faces of piston pin ontology, belongs to Weight reduced type piston pin, by piston pin sheet
Machine adds eight lightening holes on body, further mitigates the weight of piston pin, reduces the inertia force of reciprocating motion, reduces energy
The loss of amount.
Description of the drawings
Fig. 1 is the overall structure diagram of piston pin in embodiment 1；
Fig. 2 is the positive structure diagram of Fig. 1；
Fig. 3 is the right side structural representation of Fig. 1；
Fig. 4 is the A-A schematic cross-sectional views of Fig. 3；
Fig. 5 is the B-B schematic cross-sectional views of Fig. 3.
In figure：1 is piston pin ontology, and 11 be end face one, and 12 be end face two, and 2 be through-hole, and 21 be first through hole, and 22 be the
Two through-holes, 3 be oil-way, and 4 be lightening hole, and 41 be the first lightening hole, and 42 be the second lightening hole, and 43 be third lightening hole, 44
For the 4th lightening hole.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
As shown in Figs. 1-5, a kind of piston pin of the present embodiment, it is simple in structure, easy to use, including inside is with through-hole 2
Piston pin ontology 1, piston pin ontology 1 are equipped with oil-way 3 and lightening hole 4；Wherein, oil-way 3 is disposed in proximity to piston
It on the end face for selling ontology 1, and is uniformly distributed in 1 axial direction of piston pin ontology, lightening hole 4 is then set to oil-way 3 and leads to
Between hole 2.
Piston pin ontology 1 is cylindrical piston pin, inside crossed through-hole 2, and piston pin ontology 1 and the through-hole 2
Axis is consistent.Through-hole 2 specifically includes first through hole 21, the second through-hole 22, and first through hole 21 and the second through-hole 22 are in truncated cone shape,
And the relatively small-caliber end of the two connects.The design of double truncated cone shape shape of through holes in embodiment, it is real in the case where ensuring intensity
It consumes energy when having showed piston connecting bar system work small；
Oil-way 3 is specially eight, is respectively uniformly distributed in (i.e. each piston pin in the both ends of the surface of piston pin ontology 1
Oil-way 3 there are four being uniformly distributed on the end face of ontology 1).The present embodiment engine at work, oil-way 3 it is inner can when
It maintains oily presence quarter, oil film can be formed always on 1 outer surface of piston pin ontology, be conducive to the cooling and lubricating of piston pin, reduce
Wrist pin wear reduces the risk of destruction.
Lightening hole 4 is taper lightening hole, and specially eight, is respectively uniformly distributed in the both ends of the surface of piston pin ontology 1
(be uniformly distributed on the end face of each piston pin ontology 1 there are four lightening holes 4), the axis of extending direction and piston pin ontology 1
Line is parallel.Wherein, the lightening hole 4 on the end face 1 of piston pin ontology 1 is respectively the first lightening hole 41, the second lightening hole
42, third lightening hole 43 and the 4th lightening hole 44；First lightening hole 41 is located at third lightening hole 43 on same axis, and second subtracts
Repeated hole 42, the 4th lightening hole 44 are then located on another straight line vertical with above-mentioned axis；First lightening hole 41, third lightening hole 43
Axis and the axis of the second lightening hole 42, the 4th lightening hole 44 intersect at the center of through-hole 2.It is another positioned at piston pin ontology 1
Lightening hole 4 on the end face 2 12 of a end face is identical as the setting on end face 1.The present embodiment passes through on piston pin ontology 1
Machine adds eight lightening holes 4, further mitigates the weight of piston pin, reduces the inertia force of reciprocating motion, reduces energy
Loss.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of piston pin, which is characterized in that include piston pin ontology of the inside with through-hole, the piston pin ontology is equipped with profit
Oil groove and lightening hole；The through-hole specifically includes first through hole, the second through-hole, and first through hole is in truncated cone shape with the second through-hole,
And the relatively small-caliber end of the two connects；The oil-way is disposed in proximity on the end face of piston pin ontology, and along piston
Pin body shaft is uniformly distributed upwards, and lightening hole is then set between oil-way and through-hole.
2. piston pin according to claim 1, which is characterized in that the piston pin ontology is cylindrical piston pin, in
Through-hole is crossed in portion；The piston pin ontology is consistent with the axis of through-hole.
3. piston pin according to claim 1, which is characterized in that the oil-way is specially eight, is uniformly divided respectively
It is distributed in the both ends of the surface of piston pin ontology.
4. piston pin according to claim 1, which is characterized in that the lightening hole is taper lightening hole, extending direction
It is parallel with the axis of piston pin ontology.
5. piston pin according to claim 1, which is characterized in that the lightening hole is specially eight, is respectively uniformly distributed
In in the both ends of the surface of piston pin ontology.
6. piston pin according to claim 5, which is characterized in that the lightening hole on an end face of the piston pin ontology
Respectively the first lightening hole, the second lightening hole, third lightening hole and the 4th lightening hole；First lightening hole and third lightening hole
On same axis, the second lightening hole, the 4th lightening hole are then located on another straight line vertical with above-mentioned axis.
7. piston pin according to claim 6, which is characterized in that first lightening hole, third lightening hole axis with
Second lightening hole, the 4th lightening hole axis intersect at the center of through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810265666.8A CN108547946A (en) | 2018-03-28 | 2018-03-28 | Piston pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810265666.8A CN108547946A (en) | 2018-03-28 | 2018-03-28 | Piston pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547946A true CN108547946A (en) | 2018-09-18 |
Family
ID=63517127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810265666.8A Withdrawn CN108547946A (en) | 2018-03-28 | 2018-03-28 | Piston pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547946A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271250A (en) * | 2018-12-04 | 2020-06-12 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
| CN111946594A (en) * | 2020-08-04 | 2020-11-17 | 蚌埠艾普压缩机制造有限公司 | Reciprocating compressor piston |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203604625U (en) * | 2013-10-16 | 2014-05-21 | 株洲湘火炬机械制造有限责任公司 | Piston pin |
| CN204041259U (en) * | 2014-06-24 | 2014-12-24 | 华晨汽车集团控股有限公司 | A kind of Novel piston pin |
| CN204113472U (en) * | 2014-08-06 | 2015-01-21 | 山东滨州渤海活塞股份有限公司 | Internal-combustion engine composite piston pin |
| CN204784665U (en) * | 2015-05-25 | 2015-11-18 | 华晨汽车集团控股有限公司 | Piston pin |
-
2018
- 2018-03-28 CN CN201810265666.8A patent/CN108547946A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203604625U (en) * | 2013-10-16 | 2014-05-21 | 株洲湘火炬机械制造有限责任公司 | Piston pin |
| CN204041259U (en) * | 2014-06-24 | 2014-12-24 | 华晨汽车集团控股有限公司 | A kind of Novel piston pin |
| CN204113472U (en) * | 2014-08-06 | 2015-01-21 | 山东滨州渤海活塞股份有限公司 | Internal-combustion engine composite piston pin |
| CN204784665U (en) * | 2015-05-25 | 2015-11-18 | 华晨汽车集团控股有限公司 | Piston pin |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271250A (en) * | 2018-12-04 | 2020-06-12 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
| CN111271250B (en) * | 2018-12-04 | 2021-10-08 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
| CN111946594A (en) * | 2020-08-04 | 2020-11-17 | 蚌埠艾普压缩机制造有限公司 | Reciprocating compressor piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180918 |
|
| WW01 | Invention patent application withdrawn after publication |