CN204458787U - Crankshaft structure - Google Patents
Crankshaft structure Download PDFInfo
- Publication number
- CN204458787U CN204458787U CN201520101749.5U CN201520101749U CN204458787U CN 204458787 U CN204458787 U CN 204458787U CN 201520101749 U CN201520101749 U CN 201520101749U CN 204458787 U CN204458787 U CN 204458787U
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- China
- Prior art keywords
- balancing weight
- footpath
- crankshaft
- crankshaft body
- turning
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of crankshaft structure, it comprises bent axle, and bent axle at least comprises two crankshaft body linked together, and crankshaft body is fixedly installed togather by connecting sleeve between any two; Crankshaft body comprises the first balancing weight, the second balancing weight that connect as one and turns footpath; Turn footpath to be arranged between the first balancing weight and the second balancing weight, and turn the edge that footpath is arranged on the first balancing weight and the second balancing weight; The medial axis of turning footpath of adjacent two crankshaft body is positioned on different straight lines; First balancing weight and the second balancing weight are provided with the connecting end linked together for two crankshaft body; On connecting end, setting is arranged on the joint in connecting sleeve for interference.
Description
Technical field
The utility model belongs to technical field of automobile engine, is specifically related to the crankshaft structure in a kind of motor car engine.
Background technique
Motor is the power driving automobile to advance, and bent axle is the critical piece of transferring power in motor.The fuel gas pressure produced that burns in a combustion chamber is passed to bent axle by piston and coupled connecting rod, and is converted into moment of torsion by bent axle, thus drives gas distribution structure and other auxiliary devices of the transmission system motor of vehicle.Current automobile engine crankshaft mainly adopts solid forging shaping, and global formation exists the factor such as forging difficulty, processing inconvenience, and high to the requirement of process equipment; There is larger centrifugal force when processing connecting rod footpath, the bent axle of processing is difficult to ensure permissible accuracy simultaneously.
Model utility content
For above-mentioned deficiency of the prior art, the utility model provides the crankshaft structure of the segmented composition that manufacture simplifies, rational in infrastructure and machining accuracy is higher.
In order to reach foregoing invention object, the technical solution adopted in the utility model is:
There is provided a kind of crankshaft structure, comprise bent axle, bent axle at least comprises two crankshaft body linked together, and crankshaft body is fixedly installed togather by connecting sleeve between any two;
Crankshaft body comprises the first balancing weight, the second balancing weight that connect as one and turns footpath; Turn footpath to be arranged between the first balancing weight and the second balancing weight, and turn the edge that footpath is arranged on the first balancing weight and the second balancing weight; The medial axis of turning footpath of adjacent two crankshaft body is positioned on different straight lines;
First balancing weight and the second balancing weight are provided with the connecting end linked together for two crankshaft body; On connecting end, setting is arranged on the joint in connecting sleeve for interference.
The beneficial effects of the utility model are: compared with traditional automobile engine crankshaft, the bent axle of this programme by setting down out after, to be fixedly installed togather formation bent axle by connecting sleeve, difficulty of processing large problem when overcoming solid forging; Integral processing difficulty reduces, and easily manufactures and the advantage such as fabricating cost is low;
The upper end portion quality turning footpath will be provided with on the upside of crankshaft body medial axis equal the quality of the underpart on the downside of crankshaft body medial axis, and eliminate the unbalanced problem of bent axle self, thus ensure that the normal work of bent axle.
Accompanying drawing explanation
Fig. 1 is the structural representation of crankshaft structure;
Fig. 2 is the structural representation of crankshaft body.
Wherein, 1, crankshaft body; 11, joint; 12, the first balancing weight; 13, connecting end; 14, the second balancing weight; 15, footpath is turned; 2, connecting sleeve.
Embodiment
Below embodiment of the present utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent, and all innovation and creation utilizing the utility model to conceive are all at the row of protection in appended claim.
The structural representation of crankshaft structure is shown with reference to figure 1, Fig. 1; As shown in Figure 1, this crankshaft structure comprises bent axle, and bent axle at least comprises two crankshaft body linked together 1, and crankshaft body 1 is fixedly installed togather by connecting sleeve 2 between any two.After such setting, only need the crankshaft body 1 of segmentation processing to fit together formation bent axle by connecting sleeve 2, reduce the difficulty of processing of bent axle 1.Simultaneously because bent axle is the transmission being carried out moment by High Rotation Speed, at least bent axle easily weares and teares, and after subsection setup, can change the crankshaft body 1 of serious wear as required.
As shown in Figure 2, for the ease of the processing of crankshaft body, crankshaft body 1 is arranged to the first balancing weight 12, second balancing weight 14 connected as one and the structure turning footpath 15; Turn footpath 15 to be arranged between the first balancing weight 12 and the second balancing weight 14, and turn the edge that footpath 15 is arranged on the first balancing weight 12 and the second balancing weight 14.The medial axis of turning footpath 15 of adjacent two crankshaft body 1 is positioned on different straight lines.
First balancing weight 12 and the second balancing weight 14 are provided with the connecting end 13 linked together for two crankshaft body 1; On connecting end 13, setting is arranged on the joint 11 in connecting sleeve 2 for interference.
Because the footpath 15 of turning of crankshaft body 1 is arranged on the first balancing weight 12 and the second balancing weight 14 side, when High Rotation Speed, bent axle can not be in transient equiliblium, if bent axle can not be in transient equiliblium just can not realize normal work.
So in an embodiment of the present utility model, the second balancing weight 14 is provided with the upper end volume turning footpath 15 and is arranged to be greater than the lower end of not installing and turning footpath 15; The quality that the upper end portion quality turning footpath 15 equals the underpart on the downside of crankshaft body 1 medial axis is provided with on the upside of described crankshaft body 1 medial axis.
In an embodiment of the present utility model, in order to ensure the stability in crankshaft rotating process, be arranged to the diameter of connecting end 13 to be greater than the diameter turning footpath 15; The diameter turning footpath 15 is arranged to equal the diameter of joint 11; The diameter of connecting end 13 is arranged to the diameter equaling institute's connecting sleeve 2.The medial axis of turning footpath 15 and connecting end 13 of bent axle is parallel to each other.
First balancing weight 12, second balancing weight 14 of crankshaft body 1 and turn footpath 15 and connecting sleeve 2 all adopts same material to make.
Although describe in detail embodiment of the present utility model by reference to the accompanying drawings, should not be construed as the restriction of the protection domain to this patent.In the scope described by claims, the various amendment that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (4)
1. a crankshaft structure, comprises bent axle, it is characterized in that, described bent axle at least comprises two crankshaft body linked together, and described crankshaft body is fixedly installed togather by connecting sleeve between any two;
Described crankshaft body comprises the first balancing weight, the second balancing weight that connect as one and turns footpath; Described footpath of turning is arranged between described first balancing weight and the second balancing weight, and turns the edge that footpath is arranged on described first balancing weight and described second balancing weight; The medial axis of turning footpath of adjacent two crankshaft body is positioned on different straight lines;
Described first balancing weight and described second balancing weight are provided with the connecting end for being linked together by two crankshaft body; Described connecting end is provided with the joint be arranged on for interference in described connecting sleeve.
2. crankshaft structure according to claim 1, is characterized in that, described second balancing weight is provided with the upper end volume turning footpath and is greater than the lower end of not installing and turning footpath; The quality that the upper end portion quality turning footpath equals the underpart on the downside of crankshaft body medial axis is provided with on the upside of described crankshaft body medial axis.
3. crankshaft structure according to claim 1, is characterized in that, turns the diameter in footpath described in the diameter of described connecting end is greater than; The described diameter turning footpath equals the diameter of described joint; The diameter of described connecting end equals the diameter of institute's connecting sleeve.
4., according to the arbitrary described crankshaft structure of claim 1-3, it is characterized in that, the medial axis of turning footpath and described connecting end of described bent axle is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101749.5U CN204458787U (en) | 2015-02-12 | 2015-02-12 | Crankshaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520101749.5U CN204458787U (en) | 2015-02-12 | 2015-02-12 | Crankshaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458787U true CN204458787U (en) | 2015-07-08 |
Family
ID=53665678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520101749.5U Active CN204458787U (en) | 2015-02-12 | 2015-02-12 | Crankshaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458787U (en) |
-
2015
- 2015-02-12 CN CN201520101749.5U patent/CN204458787U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |