CN205841468U - The crankshaft structure of v type eight cylinder engine - Google Patents
The crankshaft structure of v type eight cylinder engine Download PDFInfo
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- CN205841468U CN205841468U CN201620836379.4U CN201620836379U CN205841468U CN 205841468 U CN205841468 U CN 205841468U CN 201620836379 U CN201620836379 U CN 201620836379U CN 205841468 U CN205841468 U CN 205841468U
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- crank throw
- central axis
- crank
- bent axle
- cylinder engine
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Abstract
The utility model discloses the crankshaft structure of a kind of v type eight cylinder engine, the two ends of bent axle are respectively free end and power take-off, free end to power take-off is sequentially provided with the first crank throw, the second crank throw, the 3rd crank throw, the 4th crank throw, along free end to power take-off direction projection, it is the first crank throw, the second crank throw, the 4th crank throw, the 3rd crank throw the most successively, the angle of adjacent crank throw is 90 °, and the firing order of bent axle is 1423.Firing order of the present utility model advantageously reduces the torsional oscillation amplitude of crankshaft system, improves the performance of the intensity of bent axle, torsional oscillation and intensity.
Description
Technical field
This utility model relates to engine art, particularly to the crankshaft structure of a kind of v type eight cylinder engine.
Background technology
The torsional oscillation amplitude of the bent axle of existing v type eight cylinder engine is relatively big, and the strength character of bent axle is poor, and eight
The supply capability of cylinder crankshaft is poor, the bad layout of oil duct and processing etc..
The information being disclosed in this background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or imply in any form this information structure existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide the crankshaft structure of a kind of v type eight cylinder engine, thus overcomes existing bent axle
The shortcoming that torsional oscillation amplitude is big and strength character is poor.
For achieving the above object, this utility model provides the crankshaft structure of a kind of v type eight cylinder engine, the two ends of bent axle
Being respectively free end and power take-off, free end to power take-off is sequentially provided with the first crank throw, the second crank throw, the 3rd song
Turn, the 4th crank throw, along free end to power take-off direction projection, be the most successively the first crank throw, the second crank throw,
4th crank throw, the 3rd crank throw, the angle of adjacent crank throw is 90 °, and the firing order of bent axle is 1-4-2-3.
Preferably, in technique scheme, each crank arm of bent axle about corresponding rod journal central axis with
The plane symmetry that the central axis of bent axle is formed, the lower end of each crank arm of the first crank throw and the 4th crank throw is respectively equipped with arc
The first balancing weight, the angle between the central axis of the first balancing weight and the central axis of corresponding crank arm is 0 °～45 °.
Preferably, in technique scheme, near merit on the crank arm and the 3rd crank throw of free end on the second crank throw
The lower end of the crank arm of rate outfan is respectively equipped with the second balancing weight of arc, and the central axis of the second balancing weight is bent with corresponding
Angle between the central axis of shaft arm is 45 °～90 °.
Preferably, in technique scheme, the trunnion of the first crank throw and the 4th crank throw both sides is respectively equipped with level
First oil duct, the central axis upright of the first oil duct is in the central axis of bent axle；Near the master of power take-off on second crank throw
Axle journal is provided with the second vertical oil duct.
Preferably, in technique scheme, each rod journal is provided with two central axis about bent axle with each
The oil outlet group of the plane symmetry that the central axis of rod journal is formed, each oil outlet group include two axially symmetric fuel-displaced
Hole；The center of the first oil duct and the second oil duct is respectively equipped with intercommunicating pore, is provided with passage between oil outlet and adjacent intercommunicating pore,
Form oblique oil duct.
Preferably, in technique scheme, the center of circle of the axle center of oil outlet and the radial section of corresponding rod journal it
Between the plane that formed with the central axis of corresponding rod journal of line and the central axis of bent axle between angle be 45 °～
90°。
Preferably, in technique scheme, the center of circle of the axle center of oil outlet and the radial section of corresponding rod journal it
Between the plane that formed with the central axis of corresponding rod journal of line and the central axis of bent axle between angle be 60 °.
Preferably, in technique scheme, each crank throw being arranged with two lightening holes, lightening hole is from each crank throw one
The crank arm of side extends to corresponding rod journal.
Compared with prior art, this utility model has the advantages that
Firing order of the present utility model advantageously reduces the torsional oscillation amplitude of crankshaft system, improve the intensity of bent axle, torsional oscillation and
The performance of intensity；Crank arm and the lightweight being designed with beneficially bent axle of balancing weight, reduce the moment of resistance of bent axle, improves bent axle
Dynamic balancing rate；The convenient processing of the layout of oil duct, and can sufficient lubrication base bearing and the connecting-rod bearing, improve V-type engine
The lubricant effect of the bearing of journals；Lightening hole is conducive to the lightweight of bent axle.
Accompanying drawing explanation
Fig. 1 is the front view of the crankshaft structure according to v type eight cylinder engine of the present utility model.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the B-B view of Fig. 1.
Fig. 4 is the C-C view of Fig. 1.
Fig. 5 is the R-R view of Fig. 1.
Fig. 6 is the D-D view of Fig. 1.
Fig. 7 is the P-P view of Fig. 1.
Main Reference Numerals illustrates:
1-bent axle, 101-the first crank throw, 102-the second crank throw, 103-the 3rd crank throw, 104-the 4th crank throw, 105-is freely
End, 106-power take-off, 107-the first oil duct, 108-the first oil duct, 109-the second oil duct, 110-the first oil duct, 111-the
One oil duct, 112-oil outlet, the oblique oil duct of 113-, 114-lightening hole, 2-the first balancing weight, 3-the second balancing weight.
Detailed description of the invention
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not limited by detailed description of the invention.
Explicitly indicating that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or it becomes
Change and such as " comprising " or " including " etc. will be understood to comprise stated element or ingredient, and do not get rid of other yuan
Part or other ingredient.
As it is shown in figure 1, include bent axle 1 according to the crankshaft structure of the v type eight cylinder engine of this utility model detailed description of the invention
With 6 balancing weights.
As it is shown in figure 1, the two ends of bent axle 1 are respectively free end 105 and power take-off 106, along free end 105 to power
Outfan 106 direction projection, is first crank throw the 101, second crank throw the 102, the 4th crank throw 104 and the 3rd the most successively
Crank throw 103, the angle between adjacent crank throw is 90 °, as shown in figures 2 and 5.Specifically, export along free end 105 to power
Hold 106 direction projections, if the first crank throw 101 (12 directions) straight up, then the second crank throw 102 level (3 sides to the right
To), the 3rd crank throw 103 level (9 directions) to the left, the 4th crank throw 104 (6 directions) straight down.The firing order of bent axle
For 1-4-2-3.
As shown in figures 2-6, the shape of all crank arms of bent axle is identical, and crank arm is about corresponding rod journal
The plane symmetry that the central axis of central axis and bent axle is formed.Such as Fig. 1-3, shown in 6, the first crank throw 101 and the 4th crank throw 104
The lower end of each crank arm be respectively equipped with the first balancing weight 2 of arc, the central axis of the first balancing weight 2 and corresponding crank
Angle between the central axis of arm is 0 °～45 °.Such as Fig. 1, shown in 4, near the crank arm of free end on the second crank throw 102
1021 and the 3rd the second balancing weights 3 being respectively equipped with arc on crank throw 103 near the lower end of the crank arm of power take-off, second
Angle between the central axis of balancing weight 3 and the central axis of corresponding crank arm is 45 °～90 °.As described in figures 1 and 5,
On two crank throws 102 on the crank arm 1022 and the 3rd crank throw 103 of power take-off on the crank arm 1031 of free end
It is not provided with balancing weight.
As shown in Fig. 1,2,4, the trunnion of the first crank throw 101 and the 4th crank throw 104 both sides is respectively equipped with the of level
One oil duct the 107, first oil duct the 108, first oil duct the 110, first oil duct 111, the central axis upright of the first oil duct is in bent axle 1
Central axis.As it is shown in figure 1, the trunnion near power take-off is provided with the second vertical oil duct on the second crank throw 102
109。
As shown in Fig. 1,2,4, each rod journal is provided with two central axis about bent axle and each rod journal
The oil outlet group of plane symmetry that formed of central axis, each oil outlet group includes two axially symmetric oil outlets 112.As
Fig. 1, shown in 3, as a example by the second crank throw 102, second connecting rod axle journal is provided with four oil outlets 112, and these four oil outlets 112 exist
The plane symmetry transversely formed with the central axis of second connecting rod axle journal about the central axis of bent axle, at second connecting rod axle journal
Length direction on (axially) also symmetrical.The center of the first oil duct and the second oil duct is respectively equipped with intercommunicating pore, oil outlet 112 with
It is provided with passage between adjacent intercommunicating pore, forms oblique oil duct 113.
In line between the axle center of oil outlet 112 and the center of circle of the radial section of corresponding rod journal and bent axle 1
Angle between the plane that mandrel line is formed with the central axis of corresponding rod journal is 45 °～90 °.As an enforcement
Example, as in figure 2 it is shown, the line between the center of circle of the radial section of the axle center of oil outlet 112 and first connecting rod axle journal and the 1 of bent axle
Angle between the plane that central axis is formed with the central axis of corresponding rod journal is 60 °.
Being arranged with two lightening holes 114 on each crank throw, the lightening hole 114 crank arm from each crank throw side extends to
Rod journal, and lightening hole 114 accordingly all avoids oblique oil duct 113.As it is shown in fig. 7, as a example by the second crank throw 102, the
Being arranged with two lightening holes 114 on two crank throws 102, the lightening hole 114 in left side is downward from the crank arm 1021 near free end
Side extends to second connecting rod axle journal, and the lightening hole 114 on right side extends to downwards from the crank arm 1022 near power take-off
Second connecting rod axle journal.
Firing order of the present utility model advantageously reduces the torsional oscillation amplitude of crankshaft system, improve the intensity of bent axle, torsional oscillation and
The performance of intensity；Crank arm and the lightweight being designed with beneficially bent axle of balancing weight, reduce the moment of resistance of bent axle, improves bent axle
Dynamic balancing rate；The convenient processing of the layout of oil duct, and can sufficient lubrication base bearing and the connecting-rod bearing, improve V-type engine
The lubricant effect of the bearing of journals；Lightening hole is conducive to the lightweight of bent axle.
The aforementioned description to specific illustrative embodiment of the present utility model illustrates that and the purpose of illustration.These
Describe and be not wishing to be defined to this utility model disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
A lot of changes and change.The purpose selected exemplary embodiment and describe is to explain certain principles of the present utility model
And reality application, so that those skilled in the art is capable of and utilizes various different example of the present utility model
Property embodiment and various different selection and change.Scope of the present utility model be intended to by claims and etc. similar shape
Formula is limited.
Claims (8)
1. a crankshaft structure for v type eight cylinder engine, the two ends of bent axle are respectively free end and power take-off, described freedom
Hold to power take-off and be sequentially provided with the first crank throw, the second crank throw, the 3rd crank throw, the 4th crank throw, it is characterised in that along described from
By end to described power take-off direction projection, it is described first crank throw, described second crank throw, described the most successively
4th crank throw, described 3rd crank throw, the angle of adjacent crank throw is 90 °, and the firing order of described bent axle is 1-4-2-3.
The crankshaft structure of v type eight cylinder engine the most according to claim 1, it is characterised in that each crank of described bent axle
The plane symmetry that arm is formed with the central axis of described bent axle about the central axis of corresponding rod journal, described first crank throw
With the first balancing weight that the lower end of each crank arm of described 4th crank throw is respectively equipped with arc, the center of described first balancing weight
Angle between axis and the central axis of corresponding crank arm is 0 °～45 °.
The crankshaft structure of v type eight cylinder engine the most according to claim 2, it is characterised in that close on described second crank throw
On the crank arm of described free end and described 3rd crank throw, the lower end of the crank arm of close described power take-off is respectively equipped with arc
Second balancing weight of shape, the angle between central axis and the central axis of corresponding crank arm of described second balancing weight is
45 °～90 °.
4. according to the crankshaft structure of the v type eight cylinder engine described in claim 1 or 3, it is characterised in that described first crank throw and
Be respectively equipped with the first oil duct of level on the trunnion of described 4th crank throw both sides, the central axis upright of described first oil duct in
The central axis of described bent axle；On described second crank throw, the trunnion near described power take-off is provided with the second vertical oil
Road.
The crankshaft structure of v type eight cylinder engine the most according to claim 4, it is characterised in that each rod journal is provided with
The oil outlet group of the plane symmetry that the central axis of two central axis about described bent axle and each rod journal is formed, often
Individual described oil outlet group includes two axially symmetric oil outlets；The center of described first oil duct and described second oil duct is respectively
It is communicated with hole, between described oil outlet and adjacent described intercommunicating pore, being provided with passage, forms oblique oil duct.
The crankshaft structure of v type eight cylinder engine the most according to claim 5, it is characterised in that the axle center of described oil outlet with
Line between the center of circle of the radial section of corresponding rod journal and the central axis of described bent axle and corresponding rod journal
Central axis formed plane between angle be 45 °～90 °.
The crankshaft structure of v type eight cylinder engine the most according to claim 6, it is characterised in that the axle center of described oil outlet with
Line between the center of circle of the radial section of corresponding rod journal and the central axis of described bent axle and corresponding rod journal
Central axis formed plane between angle be 60 °.
The crankshaft structure of v type eight cylinder engine the most according to claim 1, it is characterised in that be arranged with on each crank throw
Two lightening holes, the described lightening hole crank arm from each crank throw side extends to corresponding rod journal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620836379.4U CN205841468U (en) | 2016-08-04 | 2016-08-04 | The crankshaft structure of v type eight cylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620836379.4U CN205841468U (en) | 2016-08-04 | 2016-08-04 | The crankshaft structure of v type eight cylinder engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841468U true CN205841468U (en) | 2016-12-28 |
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ID=57617494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620836379.4U Active CN205841468U (en) | 2016-08-04 | 2016-08-04 | The crankshaft structure of v type eight cylinder engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089971A (en) * | 2016-08-04 | 2016-11-09 | 广西玉柴机器股份有限公司 | The crankshaft structure of v type eight cylinder engine |
| CN106246708A (en) * | 2016-08-04 | 2016-12-21 | 广西玉柴机器股份有限公司 | The crankshaft structure of v type eight cylinder engine |
-
2016
- 2016-08-04 CN CN201620836379.4U patent/CN205841468U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089971A (en) * | 2016-08-04 | 2016-11-09 | 广西玉柴机器股份有限公司 | The crankshaft structure of v type eight cylinder engine |
| CN106246708A (en) * | 2016-08-04 | 2016-12-21 | 广西玉柴机器股份有限公司 | The crankshaft structure of v type eight cylinder engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right |