CN208010914U - A kind of piston rod device and engine system - Google Patents
A kind of piston rod device and engine system Download PDFInfo
- Publication number
- CN208010914U CN208010914U CN201721636548.0U CN201721636548U CN208010914U CN 208010914 U CN208010914 U CN 208010914U CN 201721636548 U CN201721636548 U CN 201721636548U CN 208010914 U CN208010914 U CN 208010914U
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- CN
- China
- Prior art keywords
- piston
- oil
- hole
- pin
- connecting rod
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- 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)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of piston rod device and engine system, the piston rod device includes piston pin, piston, connecting rod, connecting rob bushing, piston boss.The piston pin is set there are two oil-through-hole, the oil-through-hole skew symmetry is distributed in the section that piston pin is contacted with pin hole, the oil-through-hole both ends open is radiussed, there is a poly- oil ring inside piston pin, the poly- oil ring is located at two head of piston pin, there is an oil guide groove inside piston pin, poly- oil ring of the oil guide groove by way of oil-through-hole connection piston pin both ends, the connecting rob bushing has a cooperation through-hole, the cooperation through-hole bore is consistent with oil guide hole on small end of connecting rod, when connecting rob bushing is interference fitted with small end of connecting rod, coordinate through-hole and oil guide hole position corresponding matching on the small end of connecting rod, utilize the engine of piston rod device provided by the utility model, has the characteristics that power transmission efficiency higher.
Description
Technical field
The utility model is related to driving engine field more particularly to a kind of piston rod device and engine systems.
Background technology
Critical component of the piston rod device as connection piston and bent axle in the operational process of engine, by piston
Upper and lower transform linear motion is the circular motion of bent axle, and piston pin is revolved with the quick up and down motion of piston when engine works
Turn so that the operating temperature of piston pin and very high with the friction frequency of connecting rob bushing.Because piston rod device itself
Construction and its severe working environment, rely solely on engine crankshaft splashings lubricate be it is insufficient, application No. is
The patent document of 201621471178.X discloses a kind of connecting rod piston group device, multiple by being arranged in piston pin exterior face
The shortcomings that mode of arcuate furrow reinforces the lubrication of piston pin, such mode is piston pin exterior face is provided with multiple arcs ditch
The integral strength of piston pin will be reduced after slot, and in the lubricating oil inlet for not increasing piston pin exterior face, which will
So that piston pin integrally lubricates unevenness, the service life of piston pin is reduced.
Utility model content
In order to solve the problems of the above-mentioned prior art, the utility model proposes a kind of piston rod device and hairs
Motivation system can fully realize lubrication and cooling when piston pin is connect with piston boss, connecting rob bushing.
What the technical solution of the utility model was realized in：
The utility model discloses a kind of piston rod devices, including piston pin, piston, connecting rod, connecting rob bushing, piston pin
Seat, the piston are equipped with an oil canal, which is located at below the oil seal ring of the piston, which is connected to the work
The quantity of plug pin seat and the piston pin contact site, the piston boss is two, and two piston bosses are symmetrical arranged
In the piston both sides, the piston boss be equipped with pin hole, the pin hole run through two piston bosses, the connecting rod with it is described
Piston pin coupling part is small end of connecting rod, has a connecting rob bushing, the small end of connecting rod vertical direction to be equipped with one in the small end of connecting rod
Oil guide hole, the piston pin pass through the pin hole on the piston boss to connect piston with the small end of connecting rod, and feature exists
In the piston pin is set there are two oil-through-hole, which is distributed in the portion that the piston pin is contacted with the pin hole
Section, the oil-through-hole both ends open are radiussed, have a poly- oil ring inside the piston pin, which is located at the piston pin two
There is an oil guide groove on head inside the piston pin, which connects the poly- oil at the piston pin both ends by way of the oil-through-hole
Ring, the connecting rob bushing have a cooperation through-hole, and the cooperation through-hole bore is consistent with oil guide hole on the small end of connecting rod, the company
When bushing and the small end of connecting rod are interference fitted, the cooperation through-hole with oil guide hole position is corresponding on the small end of connecting rod matches
It closes.
In this piston rod device of the utility model, the connecting rob bushing is in interference fit with the small end of connecting rod
Interior, the piston pin passes through the pin hole on the piston boss, and the company's of passing through small end of connecting rod, by the piston and the connecting rod
It links together.
In this piston rod device of the utility model, the poly- oil ring is located inside the both ends of piston pin, this is poly-
Oil ring bore is not less than the one third of the piston pin bore.
In this piston rod device of the utility model, the position of oil-through-hole described in the oil guide groove approach, connection
The poly- oil ring at both ends, the axis of the oil guide groove are overlapped with the diameter line of the oil-through-hole inside the piston pin.
In this piston rod device of the utility model, which passes through piston boss and piston company on piston
Bar connects piston and piston rod.
In this piston rod device of the utility model, which is equipped with an oil canal, and the oil canal is from piston oil
Piston boss is connected to below ring, there are one the oil canal or so is each.
In this piston rod device of the utility model, the small end of connecting rod vertical direction is equipped with an oil guiding hole, should
The trepanning in oil guiding hole direction straight up is chamfering, and the connecting rob bushing has a matching hole, the matching hole and the piston pin
The trepanning of contact site is round trepanning.
On the basis of above, the utility model also provides engine system, which is characterized in that the engine system is above-mentioned
Piston rod device.
This piston rod device and engine system for implementing the utility model, have the advantages that：Piston is done
The lubricating oil of cylinder wall is scraped and flows to pin hole through oil canal by piston ring oil ring when work(, lubricates the contact site of piston pin and pin hole
Position reduces the friction of piston pin and piston boss, and lubricating oil can also be entered by the upper oil-through-hole of piston pin inside piston pin,
Lower oil-through-hole is converged into through oil guide groove, further lubricates the contact site of piston pin and key seat, the oil guide hole on small end of connecting rod
It is contacted with the cooperation through-hole cooperation on connecting rob bushing, lubricating oil is imported into connecting rob bushing inner peripheral surface, piston pin is made to be served as a contrast in connecting rod
It is lubricated when operating in set, contact site forms stable oil film, and lubricating uniform is abundant, effectively reduces the work of piston pin
Temperature, oil film contact effectively reduce the friction of piston pin and connecting rob bushing and pin hole, improve the service life of piston rod device,
And the piston rod device operational vibration is reduced, so that engine system operation is more steady；Piston pin cohesion oil ring
In the presence of so that the lubricating oil of a part can be gathered in piston pin so that when pistons work, piston pin can be collected into more
Lubricating oil reduces the operating temperature of piston pin, to avoid the oil film of piston pin outer surface from being destroyed because of high temperature, and keeps away
Exempt from piston pin piston pin caused by high temperature and burns situation to death.
Description of the drawings
Fig. 1 is the preferred cooperation schematic diagram of the piston rod device of the utility model；
Fig. 2 is the partial sectional view of piston pin in Fig. 1；
Fig. 3 is the partial schematic diagram of connecting rod in Fig. 1；
Fig. 4 is the partial schematic diagram of the engine system of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
In the present invention, in the case where not explaining, the noun of locality such as " upper and lower, left and right " used typically refers to
Upper and lower, left and right in attached drawing, " inside and outside " refer to relative to the inside and outside of each component outer profile.
This piston rod device of the utility model as shown in Figures 1 to 3, including piston 1, connecting rod 2, piston pin 3, on
Oil-through-hole 4, lower oil-through-hole 5, oil guiding hole 6, poly- oil ring 7, piston boss 8, oil guide groove 9, oil canal 10, pin hole 11, small end of connecting rod
12, connecting rob bushing 13, cooperation through-hole 14.Connecting rob bushing 13 is interference fitted with small end of connecting rod 12, coordinates through-hole 14 and oil guiding hole 6 right
It should connect, connecting rod 2 is connected by piston pin 3 through pin hole 11 with small end of connecting rod 12 with piston 1, when engine operates, piston
Pin 3 with piston 1 the fast turn-around between pin hole 11, connecting rob bushing 13 that pumps.The oil seal ring of piston 1 is by cylinder
Lubricating oil on wall scrapes, and the contact site of piston pin 3 and pin hole 11 is flow to by oil canal 10 so that piston pin 3 and work
The contact portion of plug pin seat 8 obtains effective lubrication cooling when running at high speed, and forms stable oil film contact.Oil guiding hole 6
With the cooperation cooperation of through-hole 14 by the contact section of lubricating oil guide link bushing 13 and piston pin 3, which is lubricated, shape
It is contacted at oil film, cooperation through-hole 14 is open close to 3 one end of piston pin for fillet, and being arranged for fillet opening is improving leading for lubricating oil
While entering amount, and can be so that cooperation through-hole 14 and the contact of 3 outer surface of piston pin are more smoothly, oil guiding hole 6 is opened for chamfering
Mouthful so that lubricating oil, which is preferably open from this chamfering, to be entered；When engine operates, lubricating oil enters piston by the sputtering of bent axle
In linkage, the lubricating oil of part is stored in inside piston pin 3 by the poly- oil ring 7 at 3 both ends of piston pin, so that
Lubricating oil is obtained inside piston pin 3 effectively to cool down, and is reduced the operating temperature of piston pin 3, is improved its service life, avoid because of work
3 temperature of plug pin is excessively high and destroys the oil film between piston pin 3 and connecting rob bushing 13, pin hole 11, and the lubricating oil inside piston pin 3
Will also pass through oil guide groove 9 enter lower oil-through-hole 5, further lubricate piston pin 3 and pin hole 11 contact, upper oil-through-hole 4 and it is lower lead to
The both ends open of oilhole 5 is fillet shaped opening, and lubricating oil is enable preferably to circulate, and will not cause to live because of being open excessive
The integral strength of plug pin 3 weakens, and is skew symmetry arrangement relation, upper and lower relation alternating with each other so that piston between two oil-through-holes
Pin 3 obtains uniformly same lubrication with the contact section at 11 both ends of pin hole.
In this total piston rod device of the utility model, bore is not less than 3 collar extension of the piston pin in the poly- oil ring 7
The one third of diameter so that external lubrication oil can preferably splash to the inside of piston pin 3 through bent axle.
When implementing the piston rod device of the utility model, the contact section and piston pin of piston pin 3 and piston boss 8
3 contact section with the intermediate of connecting rob bushing 13, can be entered by uniform continuous lubricating oil, obtain effectively lubricating so that living
The entire outer surface of plug pin 3 can form stable oil film, and because the internal poly- oil ring 7 of piston pin 3 itself and upper oil-through-hole 4,
The setting of lower oil-through-hole 5 so that when piston pin 3 works, lubricating oil existing for inside leads its most heat, avoid because
The operating temperature of piston pin 3 is excessively high and destroys the oil film of piston pin outer surface.
According to further aspect of the application, the application also provides a kind of engine system as shown in Figure 4, the engine
System includes above-mentioned piston rod device, as illustrated in the drawing piston 1, connecting rod 2, cam valve train 113, transmission of crankshaft
The components such as mechanism 114, lubricating oil pump 115, cylinder body 116, water pump 117, air cleaner 118, fan 119 utilize the engine system
Piston rod device in system can make engine system run more steady, transmission efficiency higher.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Utility model spirit and principle within, made by any modification, equivalent replacement and improve etc., should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of piston rod device, including piston pin, piston, connecting rod, connecting rob bushing, piston boss, the piston is equipped with one
Oil canal, the oil canal are located at below the oil seal ring of the piston, which is connected to the piston boss and the piston
The quantity at pin contacts position, the piston boss is two, and two piston bosses are symmetricly set on the piston both sides, should
Piston boss is equipped with pin hole, and the pin hole runs through two piston bosses, and the connecting rod is with the piston pin coupling part
Small end of connecting rod has in the small end of connecting rod connecting rob bushing, the small end of connecting rod vertical direction to be equipped with an oil guide hole, the piston
Piston is connect by the pin hole sold on the piston boss with small end of connecting rod, which is characterized in that there are two the piston pin is set
Oil-through-hole, the oil-through-hole skew symmetry are distributed in the section that the piston pin is contacted with the pin hole, which is
Radiussed has a poly- oil ring inside the piston pin, which is located at two head of the piston pin, has inside the piston pin
One oil guide groove, the oil guide groove connect the poly- oil ring at the piston pin both ends by way of the oil-through-hole, and the connecting rob bushing, which has, matches
Through-hole is closed, the cooperation through-hole bore is consistent with oil guide hole on the small end of connecting rod, the connecting rob bushing and the small end of connecting rod
When interference fit, the cooperation through-hole and oil guide hole position corresponding matching on the small end of connecting rod.
2. a kind of piston rod device according to claim 1, which is characterized in that the oil guide groove axis and the logical oil
Hole radial line overlaps.
3. a kind of piston rod device according to claim 1, which is characterized in that the poly- oil ring internal diameter is not less than described
The one third of piston pin external diameter.
4. a kind of engine system, which is characterized in that the engine system includes a kind of piston rod dress in claim 1
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636548.0U CN208010914U (en) | 2017-11-30 | 2017-11-30 | A kind of piston rod device and engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636548.0U CN208010914U (en) | 2017-11-30 | 2017-11-30 | A kind of piston rod device and engine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010914U true CN208010914U (en) | 2018-10-26 |
Family
ID=63880728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721636548.0U Expired - Fee Related CN208010914U (en) | 2017-11-30 | 2017-11-30 | A kind of piston rod device and engine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799086A (en) * | 2019-03-21 | 2019-05-24 | 潍柴动力股份有限公司 | A kind of connecting rod oil inlet oil-collecting aptitude tests device |
| CN114645798A (en) * | 2022-03-14 | 2022-06-21 | 北京理工大学 | Piston pin hole bush structure |
-
2017
- 2017-11-30 CN CN201721636548.0U patent/CN208010914U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799086A (en) * | 2019-03-21 | 2019-05-24 | 潍柴动力股份有限公司 | A kind of connecting rod oil inlet oil-collecting aptitude tests device |
| CN114645798A (en) * | 2022-03-14 | 2022-06-21 | 北京理工大学 | Piston pin hole bush structure |
| CN114645798B (en) * | 2022-03-14 | 2023-02-28 | 北京理工大学 | Piston pin hole bush structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20191130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |