CN204239439U - A kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount - Google Patents
A kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount Download PDFInfo
- Publication number
- CN204239439U CN204239439U CN201420635247.6U CN201420635247U CN204239439U CN 204239439 U CN204239439 U CN 204239439U CN 201420635247 U CN201420635247 U CN 201420635247U CN 204239439 U CN204239439 U CN 204239439U
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- China
- Prior art keywords
- neck
- side plate
- eccentric
- connecting rod
- bent axle
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Abstract
A kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount, comprise the first support neck and second and support neck, first one end supporting neck is connected on the first side plate, second one end supporting neck is connected on the second side plate, first side plate is connected with the two ends of the second side plate by eccentric neck, when this bent axle is connected with connecting rod, connecting rod is directly enclosed within eccentric neck by roller bearing, during this Crankshaft motion, first supports neck and second supports neck rotation, the first side plate and the second side plate is driven to rotate respectively, eccentric neck is driven to do eccentric motion, thus realize the eccentric motion of bent axle, when this bent axle is connected with connecting rod, the linear reciprocating motion of connecting rod is realized by the eccentric motion of bent axle, it is simple that the utility model has structure, convenient processing and assembling, intensity is high, stress is concentrated little, the advantages such as low cost of manufacture.
Description
Technical field
The utility model belongs to bent axle technical field, is specifically related to a kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount.
Background technique
At present in large eccentricity amount and the bent axle that uses of the occasion of heavy duty, the manufacturing process of normal employing solid forging or casting, forging equipment tonnage required during forging is large, follow-up cutting complex procedures, because bent axle exists eccentric, therefore also need special bent axle cutting machine tool, and cause the workpiece deformation amount when follow-up Tempering and Quenching large due to the complexity of the crankshaft structure of solid forging, the bad control of metallographic structure, manufacture cost is high.In use, due to the eccentric structure of integral shaft complexity, cause bent axle and easily produce stress at support axle journal and eccentric journal two transition positions and concentrate, bent axle can be caused time serious to crack at stress raiser, even cause rupturing; In addition, owing to adopting overall eccentric crank structure, cause and must adopt split plain bearing in the connecting rod tip at crankshaft eccentric neck place, the rolling bearing of the low coefficient of friction of the overall annulus of non-subdivision (usual coefficient of rolling friction is 1/10th of the coefficient of sliding friction) cannot be adopted, the friction energy loss causing crankshaft eccentric neck place due to the occasion being used in heavy duty is large, and capacity usage ratio is low; The eccentric bent axle of solid forging, in order to connecting rod being arranged on crankshaft journal smoothly, connecting rod tip must adopt split type structure, adds manufacture difficulty and the cost of connecting rod.Therefore, the bent axle used in the occasion of large eccentricity amount heavy duty is badly in need of developing a kind of novel structure, solves the above-mentioned difficult problem existing for integral one-piece crankshaft.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of assembled crankshaft structure being applicable to large eccentricity amount heavy duty occasion, and structure simply, is conveniently processed and assembled, intensity is high, stress concentrates little, low cost of manufacture.
To achieve these goals, the technological scheme that the utility model is taked is:
A kind of assembled crankshaft structure being applicable to large eccentricity amount heavy duty occasion, comprise the first support neck 1 and second and support neck 4, first one end supporting neck 1 is connected on the first side plate 2, second one end supporting neck 4 is connected on the second side plate 3, first side plate 2 is connected with the two ends of the second side plate 3 by eccentric neck 5, when this bent axle is connected with connecting rod 7, connecting rod 7 is directly enclosed within eccentric neck 5 by roller bearing 6.
The first described support neck 1 and the first side plate 2 are made of one, and adopt disposable integral forging or casting; Second support neck 4 and the second side plate 3 are made of one, and adopt disposable integral forging or casting.
The advantages such as the utility model has that simple, the convenient processing of structure and assembling, intensity are high, stress concentrates little, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the first structural representation of the present utility model.
Fig. 2 is the schematic diagram that the first structure of the utility model is connected with connecting rod 7.
Fig. 3 is the second structural representation of the present utility model.
Fig. 4 is the schematic diagram that the utility model the second structure is connected with connecting rod 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
With reference to Fig. 1, a kind of assembled crankshaft structure being applicable to large eccentricity amount heavy duty occasion, comprise the first support neck 1 and second and support neck 4, first one end supporting neck 1 by key or spline joint on the first side plate 2, second one end supporting neck 4 is by key or spline joint on the second side plate 3, and the first side plate 2 is connected with the two ends of the second side plate 3 by eccentric neck 5, reference Fig. 2, when this bent axle is connected with connecting rod 7, connecting rod 7 is directly enclosed within eccentric neck 5 by roller bearing 6.
With reference to Fig. 3, the first described support neck 1 and the first side plate 2 are made of one, and adopt disposable integral forging or casting; Second support neck 4 and the second side plate 3 are made of one, and adopt disposable integral forging or casting, with reference to Fig. 4, when this bent axle is connected with connecting rod 7, connecting rod 7 is directly enclosed within eccentric neck 5 by roller bearing 6.
Working principle of the present utility model is:
During this Crankshaft motion, first support neck 1 and the second support neck 4 rotate, the first side plate 2 and the second side plate 3 is driven to rotate respectively, first side plate 2 and the second side plate 3 drive again eccentric neck 5 to do eccentric motion, thus realize the eccentric motion of bent axle, when this bent axle is connected with connecting rod 7, realized the linear reciprocating motion of connecting rod 7 by the eccentric motion of bent axle.
Claims (2)
1. one kind is applicable to the assembled crankshaft structure of large eccentricity amount heavy duty, comprise the first support neck (1) and second and support neck (4), it is characterized in that: first one end supporting neck (1) is connected on the first side plate (2), second one end supporting neck (4) is connected on the second side plate (3), first side plate (2) is connected with the two ends of the second side plate (3) by eccentric neck (5), when this bent axle is connected with connecting rod (7), connecting rod (7) is directly enclosed within eccentric neck (5) by roller bearing (6).
2. a kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount according to claim 1, it is characterized in that: the first described support neck (1) and the first side plate (2) are made of one, and adopt disposable integral forging or casting; Second support neck (4) and the second side plate (3) are made of one, and adopt disposable integral forging or casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635247.6U CN204239439U (en) | 2014-10-29 | 2014-10-29 | A kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635247.6U CN204239439U (en) | 2014-10-29 | 2014-10-29 | A kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239439U true CN204239439U (en) | 2015-04-01 |
Family
ID=52768939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420635247.6U Expired - Fee Related CN204239439U (en) | 2014-10-29 | 2014-10-29 | A kind of assembled crankshaft structure being applicable to the heavy duty of large eccentricity amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239439U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837985A (en) * | 2016-12-21 | 2017-06-13 | 江苏友诚数控科技有限公司 | A kind of detachable assembling bent axle |
| CN110486370A (en) * | 2019-09-17 | 2019-11-22 | 重庆西朗进出口贸易有限公司 | A kind of engine and its eccentric shaft |
| CN110549236A (en) * | 2019-10-17 | 2019-12-10 | 洛阳微力机械科技有限公司 | Axial high-frequency oscillation device for grinding end face of cylindrical roller and grinding process |
| CN111069679A (en) * | 2019-12-24 | 2020-04-28 | 浙江高盛钢结构有限公司 | Steel plate net punching and shearing machine |
-
2014
- 2014-10-29 CN CN201420635247.6U patent/CN204239439U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837985A (en) * | 2016-12-21 | 2017-06-13 | 江苏友诚数控科技有限公司 | A kind of detachable assembling bent axle |
| CN110486370A (en) * | 2019-09-17 | 2019-11-22 | 重庆西朗进出口贸易有限公司 | A kind of engine and its eccentric shaft |
| CN110549236A (en) * | 2019-10-17 | 2019-12-10 | 洛阳微力机械科技有限公司 | Axial high-frequency oscillation device for grinding end face of cylindrical roller and grinding process |
| CN111069679A (en) * | 2019-12-24 | 2020-04-28 | 浙江高盛钢结构有限公司 | Steel plate net punching and shearing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20171029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |