CN205806207U - High lubrication gasoline engine crank - Google Patents
High lubrication gasoline engine crank Download PDFInfo
- Publication number
- CN205806207U CN205806207U CN201620681051.XU CN201620681051U CN205806207U CN 205806207 U CN205806207 U CN 205806207U CN 201620681051 U CN201620681051 U CN 201620681051U CN 205806207 U CN205806207 U CN 205806207U
- Authority
- CN
- China
- Prior art keywords
- oilhole
- crank arm
- rod journal
- trunnion
- toroidal cavity
- 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.)
- Expired - Fee Related
Links
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- Lubrication Of Internal Combustion Engines (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
This utility model belongs to bent axle technical field, especially relate to a kind of high lubrication gasoline engine crank, including rod journal, left crank arm it is provided with on the left of rod journal, left trunnion it is provided with on the left of left crank arm, right crank arm it is provided with on the right side of described rod journal, right trunnion it is provided with on the right side of right crank arm, it is characterized in that: prolong left crank arm, rod journal, right crank arm and right trunnion and tilt to offer the first oilhole, prolonging on described rod journal and radially have the second oilhole, described second oilhole and the first oilhole are connected.Described right trunnion outer wall prolongs circumference and offers toroidal cavity, the cross section at toroidal cavity place is prolonged and radially offers the 3rd oilhole, and the 3rd aperture, oilhole two ends connects with toroidal cavity, described 3rd oilhole and the connection of the first oilhole.This utility model lubricant effect is preferable, can be prevented effectively from and sting a watt phenomenon.
Description
Technical field
This utility model belongs to bent axle technical field, especially relates to a kind of high lubrication gasoline engine crank.
Background technology
Gasoline engine is the dynamic power machine more commonly used, and the energy is converted directly into power.Bent axle be in electromotor
One of important parts, it bears the power that connecting rod transmits, and is transformed into torque and is exported by bent axle and drive on electromotor
Other adnexaes work.Bent axle is common by the centrifugal force of gyrating mass, the gas inertia power of mechanical periodicity and reciprocal inertia force
Effect, makes bent axle bear the effect of flexion torsion load.Therefore it is required that bent axle has enough strength and stiffness, journal surface needs resistance to
Grind, work is uniform, balance is good.
Existing powerful gasoline engine crank is by the lubricating oil pump straight oilhole fuel feeding in main shaft diameter, then passes through inclined oil hole of air
Toward the oilhole oil transportation at rod journal position, thus play lubrication, but because the straight oilhole in main shaft diameter deposits lacking structurally
Fall into, be easily caused engine oil pressure and produce not the situation that crank-pin portion stings watt.
Utility model content
In place of the purpose of this utility model is intended to solve the deficiencies in the prior art, and provide a kind of simple in construction, lubrication effect
The best high lubrication gasoline engine crank.
The purpose of this utility model is solved by following technical proposal:
A kind of high lubrication gasoline engine crank, including rod journal, is provided with left crank arm on the left of rod journal, left crank arm is left
Side is provided with left trunnion, is provided with right crank arm on the right side of described rod journal, is provided with right trunnion on the right side of right crank arm, and its feature exists
In: prolong left crank arm, rod journal, right crank arm and right trunnion and tilt to offer the first oilhole, described rod journal prolongs
Radially having the second oilhole, described second oilhole and the first oilhole are connected；
Described right trunnion outer wall prolongs circumference and offers toroidal cavity, the cross section at toroidal cavity place is prolonged and radially opens
Being provided with the 3rd oilhole, the 3rd aperture, oilhole two ends connects with toroidal cavity, described 3rd oilhole and the connection of the first oilhole.
Preferably, the second oilhole orifice chamfer described in the utility model is 120 degree.
Preferably, the 3rd oilhole orifice chamfer described in the utility model is 120 degree.
The width of toroidal cavity described in the utility model is 4.6 ~ 5.4mm.
Compared to the prior art this utility model has the characteristics that and beneficial effect:
1, prolong left crank arm, rod journal, right crank arm and right trunnion to tilt to offer the first oilhole, on rod journal
Prolonging and radially have the second oilhole, right trunnion prolongs and radially offers the 3rd oilhole, the second oilhole, the 3rd oilhole are all and the first oil
Hole is connected, can direct oil addition from the first oilhole, lubricating oil can arrive rod journal and right main shaft from the first oilhole
It is lubricated by neck, simple in construction, and effect is good.
2, the toroidal cavity offered on right trunnion can make more lubricating oil rest on axle surface, and lubricant effect is relatively
Good, can be prevented effectively from and sting a watt phenomenon.
3, the second oilhole orifice chamfer, the 3rd oilhole orifice chamfer are changed into 120 degree by original 90 degree, and throw
Light, greatly reduce when causing crankshaft-link rod to assemble because original guide angle is bad produce burr turn up or squeeze hinder bent axle
Problem.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model close up perspective view.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further details.
As shown in Figure 1 and Figure 2, a kind of high lubrication gasoline engine crank, including rod journal 1, on the left of rod journal 1, it is provided with a left side
Crank arm 2, is provided with left trunnion 3 on the left of left crank arm 2, be provided with right crank arm 4 on the right side of described rod journal 1, and right crank arm 4 is right
Side is provided with right trunnion 5.Prolong left crank arm 2, rod journal 1, right crank arm 4 and right trunnion 5 to tilt to offer the first oilhole
6, described rod journal 1 prolongs and radially has the second oilhole 7, described second oilhole 7 is connected with the first oilhole 6.
Described right trunnion 5 outer wall prolongs circumference and offers toroidal cavity 8, the Shang Yan footpath, cross section at toroidal cavity 8 place
To offering the 3rd oilhole 9, the 3rd aperture, oilhole 9 two ends connects with toroidal cavity 8, described 3rd oilhole 9 and the first oilhole 6
Connection.
Based on said structure, can direct oil addition from the first oilhole 6, due to the first oilhole 6 and the second oilhole 7
Three oilholes 9 are all connected, and lubricating oil can arrive rod journal 1 from the first oilhole 6 and it is lubricated by right trunnion 5.Right master
The toroidal cavity 8 offered on axle journal can make more lubricating oil rest on axle surface, and lubricant effect is preferable, can be prevented effectively from and sting
Watt phenomenon.
Preferably, described second oilhole 7 orifice chamfer is 120 degree.Described 3rd oilhole 9 orifice chamfer is 120 degree.And
Aperture uses secondary grinding and polishing technology, and the roughness of vent surface is brought up to more than Ra0.8.The guide angle of oilhole is carried out
Original 90 degree of chamferings are changed into the frame for movement of circular arc+120 degree chamfering+circular arc, greatly reduce because of original guide angle by design
Burr that is bad and that produce when causing crankshaft-link rod to assemble turns up or squeezes the problem hindering bent axle.
Preferably, the width of described toroidal cavity 8 is 4.6 ~ 5.4mm.
Gasoline engine crank described in the utility model, after carrying out long duration test in 1500 hours by GB/T19055 regulation, its
Wear extent≤the 0.015mm of main shaft diameter, the oil pressure pressure of oil lubricating can reach 0.3～0.5MPa, it is achieved that preferably lubricates
Effect.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (4)
1. a high lubrication gasoline engine crank, including rod journal, is provided with left crank arm, on the left of left crank arm on the left of rod journal
Being provided with left trunnion, be provided with right crank arm on the right side of described rod journal, be provided with right trunnion on the right side of right crank arm, its feature exists
In: prolong left crank arm, rod journal, right crank arm and right trunnion and tilt to offer the first oilhole, described rod journal prolongs
Radially having the second oilhole, described second oilhole and the first oilhole are connected；
Described right trunnion outer wall prolongs circumference and offers toroidal cavity, the cross section at toroidal cavity place is prolonged and radially offers
3rd oilhole, the 3rd aperture, oilhole two ends connects with toroidal cavity, described 3rd oilhole and the connection of the first oilhole.
High lubrication gasoline engine crank the most according to claim 1, it is characterised in that: described second oilhole orifice chamfer is
120 degree.
High lubrication gasoline engine crank the most according to claim 1, it is characterised in that: described 3rd oilhole orifice chamfer is
120 degree.
High lubrication gasoline engine crank the most according to claim 1, it is characterised in that: the width of described toroidal cavity is
4.6~5.4mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620681051.XU CN205806207U (en) | 2016-07-01 | 2016-07-01 | High lubrication gasoline engine crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620681051.XU CN205806207U (en) | 2016-07-01 | 2016-07-01 | High lubrication gasoline engine crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806207U true CN205806207U (en) | 2016-12-14 |
Family
ID=57513266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620681051.XU Expired - Fee Related CN205806207U (en) | 2016-07-01 | 2016-07-01 | High lubrication gasoline engine crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091144A (en) * | 2022-07-25 | 2022-09-23 | 桂林福达曲轴有限公司 | Machining method capable of improving chamfering quality of crankshaft oil hole |
-
2016
- 2016-07-01 CN CN201620681051.XU patent/CN205806207U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091144A (en) * | 2022-07-25 | 2022-09-23 | 桂林福达曲轴有限公司 | Machining method capable of improving chamfering quality of crankshaft oil hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317500 Zhejiang 10 Taizhou, Wenling Economic Development Zone Patentee after: ZHEJIANG LIANXING MACHINERY Co.,Ltd. Address before: 317500 Zhejiang 10 Taizhou, Wenling Economic Development Zone Patentee before: Zhejiang Lianxing Machinery Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 317500 Zhejiang 10 Taizhou, Wenling Economic Development Zone Patentee after: Zhejiang Lianxing Machinery Co.,Ltd. Address before: 317523 No. 25, Ou Feng Road, Lian Shu Industrial Zone, Ze Guo Town, Wenling City, Taizhou, Zhejiang Patentee before: WENLING LIANXING MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20200701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |