CN201614971U - Two-cylinder crankshaft connecting rod - Google Patents
Two-cylinder crankshaft connecting rod Download PDFInfo
- Publication number
- CN201614971U CN201614971U CN2010201345285U CN201020134528U CN201614971U CN 201614971 U CN201614971 U CN 201614971U CN 2010201345285 U CN2010201345285 U CN 2010201345285U CN 201020134528 U CN201020134528 U CN 201020134528U CN 201614971 U CN201614971 U CN 201614971U
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- boss
- face
- crankshaft connecting
- bearing
- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a two-cylinder crankshaft connecting rod, which comprises a crankshaft large end face contacting with two end faces of a bearing, and a boss arranged on the crankshaft large end face. Since the boss is arranged on the crankshaft large end face, originally surface of the whole large end face needs to be machined for smoothness, and now only the smoothness and quality of the surface of the boss need to be promoted. Therefore, the two-cylinder crankshaft connecting rod not only achieves the purpose of higher technical requirements required by the crankshaft surface contacting with the two end faces of the bearing, and reduces machining amount and production cost.
Description
Technical field
The utility model relates to a kind of crankshaft-link rod, relates in particular to a kind of two cylinder crankshaft connecting rods.
Background technique
Piston engine all adopts the crankshaft ﹠ connecting transferring power at present.Crankshaft-link rod is two comparatively unique stroke aviation piston engine mechanisms of a kind of structure, mainly be used on various aviations and the civilian piston engine and export as power, so it has comparatively application prospects.
In the existing crankshaft ﹠ connecting, to the surface finishment of the both ends of the surface that contact with bearing higher technical requirements should be arranged, manufacturing efficiency is low, and the ratio of cost of production is higher.
The model utility content
Goal of the invention: the purpose of this utility model is at the deficiencies in the prior art, and a kind of two cylinder crankshaft connecting rods easy to process, lower-cost are provided.
Technological scheme: two cylinder crankshaft connecting rods described in the utility model, comprise the crankshaft big end face that contacts with the both ends of the surface of bearing, it is characterized in that: described crankshaft big end face is provided with boss.
In order to reduce amount of finish, the diameter of described boss equals described bearing inner ring external diameter, can certainly be bigger or slightly smaller; The height of described boss is 0.3～0.6mm.Other end faces of bent axle are processed according to the stock size tolerance, can satisfy the crankshaft rod structure requirement of strength equally like this.
In order to increase the axially locating function, reduce number of spare parts, be provided with positioning boss at main journal and crank intersection.The size of small boss can be provided with as required.
Beneficial effect: the utility model compared with prior art, its beneficial effect is: 1, the utility model crankshaft big end face is provided with boss, originally need carry out the processing of surface finishment to whole large end face, the degree of finish and the quality that only need now to improve boss surface get final product; So not only reach the bent axle surface that contacts with the bearing both ends of the surface equally and needed the purpose of higher technical requirements, and reduced amount of finish, reduced cost of production; 2, the utility model is provided with positioning boss at the intersection of main journal and crank, can reduce the face of polishing on the one hand, saves cost; On the other hand, can reduce being used for the part of locating originally, make bent axle have the axially locating function.
Description of drawings
Fig. 1 is the structural representation of the utility model two cylinder crankshaft connecting rods;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the mode by embodiment is elaborated to technical solution of the present invention, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: as shown in Figure 1 and Figure 2, two cylinder crankshaft connecting rods comprise the crankshaft big end face 2 that contacts with the both ends of the surface of bearing 1, and described crankshaft big end face 2 is provided with boss 3; The diameter of described boss 3 equals described bearing 1 outside diameter of inner ring; The height of described boss 3 is 0.3mm; Be provided with positioning boss 6 at main journal 4 and crank 5 intersections.
Embodiment 2: as shown in Figure 1 and Figure 2, two cylinder crankshaft connecting rods comprise the crankshaft big end face 2 that contacts with the both ends of the surface of bearing 1, and described crankshaft big end face 2 is provided with boss 3; The slightly larger in diameter of described boss 3 is in described bearing 1 outside diameter of inner ring; The height of described boss 3 is 0.6mm; Be provided with positioning boss 6 at main journal 4 and crank 5 intersections.
Claims (4)
1. a cylinder crankshaft connecting rod comprises the crankshaft big end face (2) that contacts with the both ends of the surface of bearing (1), and it is characterized in that: described crankshaft big end face (2) is provided with boss (3).
2. two cylinder crankshaft connecting rods according to claim 1 is characterized in that: the diameter of described boss (3) equals described bearing (1) outside diameter of inner ring.
3. two cylinder crankshaft connecting rods according to claim 1 is characterized in that: the height of described boss (3) is 0.3～0.6mm.
4. according to claim 1,2 or 3 described two cylinder crankshaft connecting rods, it is characterized in that: be provided with positioning boss (6) at main journal (4) and crank (5) intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201345285U CN201614971U (en) | 2010-03-18 | 2010-03-18 | Two-cylinder crankshaft connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201345285U CN201614971U (en) | 2010-03-18 | 2010-03-18 | Two-cylinder crankshaft connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201614971U true CN201614971U (en) | 2010-10-27 |
Family
ID=43001340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201345285U Expired - Fee Related CN201614971U (en) | 2010-03-18 | 2010-03-18 | Two-cylinder crankshaft connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201614971U (en) |
-
2010
- 2010-03-18 CN CN2010201345285U patent/CN201614971U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AVIC NANJING LIGHT AERO-ENGINE CO., LTD. Free format text: FORMER OWNER: JINCHENG GROUP CO., LTD. Effective date: 20120525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120525 Address after: 210002 Zhongshan East Road, Jiangsu, China, No. 518, No. Patentee after: AVIC NANJING LIGHT AERO-POWER CO., LTD. Address before: 210002 Zhongshan East Road, Jiangsu, China, No. 518, No. Patentee before: Jincheng Group Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20160318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |