CN104565008A - Crankshaft journal for R180 internal combustion engine - Google Patents
Crankshaft journal for R180 internal combustion engine Download PDFInfo
- Publication number
- CN104565008A CN104565008A CN201410792872.6A CN201410792872A CN104565008A CN 104565008 A CN104565008 A CN 104565008A CN 201410792872 A CN201410792872 A CN 201410792872A CN 104565008 A CN104565008 A CN 104565008A
- Authority
- CN
- China
- Prior art keywords
- journal
- axle journal
- keyway
- arc surface
- concave arc
- 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.)
- Pending
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a crankshaft journal for an R180 internal combustion engine. The crankshaft journal comprises a right journal and a balance block and is characterized in that the right journal comprises a first journal and a second journal, and the diameter of the first journal is less than the diameter of the second journal; the right end of the first journal is provided with a keyway along the axis direction, and the starting end of the keyway is positioned at the right end part of the first journal; the tail end of the keyway is close to the second journal and is of an arc shape, and the first journal is in smooth transitional connection with the second journal through an inwardly concave arc surface; the inwardly concave radius of the inner concave arc surface is R1, and an outwardly convex arc surface connected with the inwardly concave arc surface is arranged on the second journal; the outwardly convex radius of the outwardly convex arc surface is R1.5. By adopting the technical scheme, the strength between the large and small journals can be improved, so that the journals cannot be broken, and the service life is prolonged; the journal is also convenient to process, the length of the keyway is relatively long, and the power is stably and reliably transmitted.
Description
Technical field
The present invention relates to a kind of I. C. engine crankshaft.
Background technique
The diameter of the transmission of power end of existing bent axle is less, processing inconvenience between axle journal, and the step between axle journal is generally skew lines and connects, intensity is more fragile, makes its intensity lower, is easily fractureed, working life is short, the less stable of singular association, affects the transmission of power.
Summary of the invention
Object of the present invention is just to provide a kind of R180 I. C. engine crankshaft axle journal, can improve the intensity between small one and large one two axle journal, prevents from being fractureed, increases the service life and have, and easy to process.
The present invention realizes by the following technical solutions: comprise right axle journal and equilibrium block, it is characterized in that: right axle journal is made up of the first axle journal and the second axle journal, the diameter of the first axle journal is less than the diameter of the second axle journal, at the first axle journal right-hand member, axis direction is provided with keyway, the top of keyway is positioned at the right-hand member end of the first axle journal, keyway tail end is near the second axle journal, and the tail end of keyway is arc, first axle journal is connected by smooth excessiveness between inner concave arc surface with the second axle journal, the indent radius of inner concave arc surface is R1, second axle journal is provided with the outer convex globoidal be connected with inner concave arc surface, outer convex globoidal external convex radius is R1.5.
Owing to have employed technique scheme, the present invention can improve the intensity between small one and large one two axle journal, prevents from being fractureed, increases the service life and have, and easy to process, and the length of keyway is longer, and transmission of power is reliable and stable.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the enlarged view of A in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As Fig. 1, shown in 2, the present invention includes and comprise right axle journal 1 and equilibrium block 2, it is characterized in that: right axle journal 1 is made up of the first axle journal 4 and the second axle journal 3, the diameter of the first axle journal 4 is less than the diameter of the second axle journal 3, at the first axle journal 4 right-hand member, axis direction is provided with keyway 5, the top of keyway 5 is positioned at the right-hand member end of the first axle journal 4, keyway 5 tail end is near the second axle journal 3, and the tail end of keyway 5 is arc, first axle journal 4 is connected by smooth excessiveness between inner concave arc surface 6 with the second axle journal, the indent radius of inner concave arc surface 6 is R1, second axle journal 3 is provided with the outer convex globoidal 7 be connected with inner concave arc surface 6, outer convex globoidal external convex radius is R1.5.
The present invention adopts inner concave arc surface can increase join strength between the axle journal of two different-diameters, and radius is R1, makes it easy to process, and outer convex globoidal external convex radius is R1.5 also antisitic defect, improves intensity, easy to process.The length of keyway is longer, and length is about 46, and make its surface of contact large, transmission of power is reliable and stable.
Claims (1)
1. a R180 I. C. engine crankshaft axle journal, comprise right axle journal and equilibrium block, it is characterized in that: right axle journal is made up of the first axle journal and the second axle journal, the diameter of the first axle journal is less than the diameter of the second axle journal, at the first axle journal right-hand member, axis direction is provided with keyway, the top of keyway is positioned at the right-hand member end of the first axle journal, keyway tail end is near the second axle journal, and the tail end of keyway is arc, first axle journal is connected by smooth excessiveness between inner concave arc surface with the second axle journal, the indent radius of inner concave arc surface is R1, second axle journal is provided with the outer convex globoidal be connected with inner concave arc surface, outer convex globoidal external convex radius is R1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792872.6A CN104565008A (en) | 2014-12-20 | 2014-12-20 | Crankshaft journal for R180 internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792872.6A CN104565008A (en) | 2014-12-20 | 2014-12-20 | Crankshaft journal for R180 internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565008A true CN104565008A (en) | 2015-04-29 |
Family
ID=53081836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792872.6A Pending CN104565008A (en) | 2014-12-20 | 2014-12-20 | Crankshaft journal for R180 internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565008A (en) |
-
2014
- 2014-12-20 CN CN201410792872.6A patent/CN104565008A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |