CN201827315U - Combined type crankshaft connecting rod mechanism - Google Patents
Combined type crankshaft connecting rod mechanism Download PDFInfo
- Publication number
- CN201827315U CN201827315U CN 201020562271 CN201020562271U CN201827315U CN 201827315 U CN201827315 U CN 201827315U CN 201020562271 CN201020562271 CN 201020562271 CN 201020562271 U CN201020562271 U CN 201020562271U CN 201827315 U CN201827315 U CN 201827315U
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- CN
- China
- Prior art keywords
- connecting rod
- shaft
- crankshaft
- left half
- axle
- 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 relates to a combined type crankshaft connecting rod mechanism which comprises a crankshaft and a connecting rod, wherein the crankshaft consists of a left half shaft, a right half shaft and a connecting shaft, and the corresponding ends of the left half shaft and the right half shaft are respectively connected with a crank and provided with an axial shaft hole; two ends of the connecting shaft are respectively arranged in the shaft holes of the left half shaft and the right half shaft; the connecting rod is integral, one end of the connecting rod is provided with a large end hole connected with the crankshaft, the other end of the connecting rod is provided with a small end hole connected with a piston, and the large end hole is connected with the middle of the connecting shaft by a bearing. The combined type crankshaft connecting rod mechanism has the advantages of simple structure, easy assembling, low cost and the like, and improves conditions for the design of a motor especially due to small space occupation; motors adopting the combined type crankshaft connecting rod mechanism has good property and is small in vibration; and the combined type crankshaft connecting rod mechanism is widely applied in motorcycles with small-medium displacement, and has great practical value in connecting the crankshaft connecting components of a motorcycle engine.
Description
Technical field
The utility model belongs to the motorcycle engine technical field, is specifically related to a kind of crankshaft ﹠ connecting.
Background technique
Crankshaft ﹠ connecting is the important component part of motorcycle engine, is subjected to effects such as various impact forces, moment of torsion, wearing and tearing, stress in the process of work, and the variation and the damage that therefore produce internal structure, and its working environment relatively seals and is difficult for close.In engine operational cycle, complicated alternate loads such as the centrifugal inertia force of the gaseous-pressure that crankshaft ﹠ connecting is subjected to periodically constantly to change, the inertial force of reciprocating mass, gyrating mass and moment, generation is reversed and horizontal and extensional vibration, bears tensile, compressive, bending and wearing and tearing.Require it should have enough intensity, rigidity, toughness, wear resistance and good balance.Therefore, the rationality of its structural design and reliability are just most important.
The tradition crankshaft ﹠ connecting is the crankshaft-and-connecting-rod that will process, and forms independently parts by being linked and packed together.The as a whole structure of bent axle because it is complex-shaped, requires height to mechanical property and dynamic and static balance, and machining allowance is few, twig is arranged, and metal is along axis and diameter of axle skewness, and the changes of section drop is bigger, the processing complexity of bent axle, productivity is low, the development of restriction bent axle.Its connecting rod adopts opposite opened structure, after processing, connects by bolt it is installed on the bent axle, and adopting said method has reduced the intensity of connecting rod, has increased the difficulty of assembling.Adopt the engine luggine of traditional crankshaft ﹠ connecting big, noise is big.
The model utility content
In order to improve the intensity of crankshaft ﹠ connecting, reduce vibration and noise in its work, the utility model provides a kind of assembled crankshaft linkage mechanism wear-resistant, that working stability is high that has.
The technical solution that realizes above-mentioned purpose is as follows:
The assembled crankshaft linkage mechanism comprises crankshaft-and-connecting-rod; Bent axle is made up of left half axle, right axle shaft and coupling shaft; The corresponding end of described left half axle and right axle shaft is being connected crank respectively, and the corresponding end of left half axle and right axle shaft is respectively equipped with axial axis hole, and the two ends of described coupling shaft lay respectively in the axis hole of left half axle and right axle shaft; Described connecting rod is the integrated type connecting rod, and an end is the big stomidium that is connected with bent axle, and the other end is the little stomidium that is connected with piston, and its big stomidium is connecting the middle part of coupling shaft by bearing.
Described bearing is the cylinder needle bearing.
The axis hole of the two ends of described coupling shaft and left half axle, right axle shaft is respectively interference fit.
The utility model has overcome the deficiency of traditional crankshaft ﹠ connecting, has its significant superiority:
1, this bent axle adopts split-type structural, and technology capability is good, and production operation is convenient, and precision is easy to control.
2, make traditional opposite opened connecting rod into the integrated type connecting rod, its structure is more reliable, production is more convenient.
3, left half axle and right axle shaft link together by interference fit by coupling shaft, are connected firmly, and compare simpler more easy to operate with traditional opposite opened Placement.
4, combine by the cylinder needle bearing between connecting rod and the coupling shaft, reduced wearing and tearing between bearing and the bent axle during work, prolonged the working life of bent axle.
5, compare with traditional crankshaft ﹠ connecting, the utility model overall structure is simple, and assembling easily, and is with low cost, particularly because the position that takes up space is little, for the design of motorcycle engine has improved condition.Being used for motorcycle engine, to have improved its performance good, shakes little; Be widely used in the motorcycle of medium and small discharge capacity.
Description of drawings
Fig. 1 the utility model structural representation,
Fig. 2 is the partial sectional view of Fig. 1,
Fig. 3 is the utility model partial isometric.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to describe further by embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 3, the assembled crankshaft linkage mechanism comprises crankshaft-and-connecting-rod.Bent axle is made up of left half axle 1, right axle shaft 2 and coupling shaft 4, the corresponding end of left half axle 1 and right axle shaft 2 is being connected crank respectively, the corresponding end of left half axle 1 and right axle shaft 2 is respectively equipped with axial axis hole, and the two ends of coupling shaft 4 lay respectively in the axis hole of left half axle and right axle shaft, and is interference fit.Connecting rod 3 is the integrated type connecting rod, and an end is the big stomidium that is connected with bent axle, and the other end is the little stomidium that is connected with piston, and crank bore is connecting the middle part of coupling shaft by cylinder needle bearing 5.
Referring to Fig. 2, during installation, the all-in-one-piece connecting rod 3 that at first will process, cylinder needle bearing 5 and coupling shaft 4 fit together, and make all-in-one-piece connecting rod 3 be positioned at the middle part of coupling shaft 4 by cylinder needle bearing 5.Then with the two ends of coupling shaft 4 respectively with left half axle 1 and right axle shaft 2 on the axis hole interference fit couple together, make left half axle 1, right axle shaft 2 and coupling shaft 4 be mounted for an integral body, finish installation process.
Claims (3)
1. the assembled crankshaft linkage mechanism comprises crankshaft-and-connecting-rod, it is characterized in that: described bent axle is made up of left half axle, right axle shaft and coupling shaft; The corresponding end of described left half axle and right axle shaft is being connected crank respectively, and the corresponding end of left half axle and right axle shaft is respectively equipped with axial axis hole, and the two ends of described coupling shaft lay respectively in the axis hole of left half axle and right axle shaft; Described connecting rod is the integrated type connecting rod, and an end is the big stomidium that is connected with bent axle, and the other end is the little stomidium that is connected with piston, and its big stomidium is connecting the middle part of coupling shaft by bearing.
2. assembled crankshaft linkage mechanism according to claim 1 is characterized in that: described bearing is the cylinder needle bearing.
3. assembled crankshaft linkage mechanism according to claim 1 is characterized in that: the axis hole of the two ends of described coupling shaft and left half axle, right axle shaft is respectively interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020562271 CN201827315U (en) | 2010-10-12 | 2010-10-12 | Combined type crankshaft connecting rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020562271 CN201827315U (en) | 2010-10-12 | 2010-10-12 | Combined type crankshaft connecting rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827315U true CN201827315U (en) | 2011-05-11 |
Family
ID=43965854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020562271 Expired - Fee Related CN201827315U (en) | 2010-10-12 | 2010-10-12 | Combined type crankshaft connecting rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827315U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291868A (en) * | 2013-04-16 | 2013-09-11 | 中国兵器工业集团第七0研究所 | Novel crank-link mechanism |
| CN107387537A (en) * | 2017-09-15 | 2017-11-24 | 西北工业大学 | A kind of small-sized aviation piston engine novel combination type crank mechanism |
| CN108087415A (en) * | 2018-01-31 | 2018-05-29 | 十堰东峻汽车系统技术有限公司 | A kind of split type bent axle used for air compressor |
-
2010
- 2010-10-12 CN CN 201020562271 patent/CN201827315U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291868A (en) * | 2013-04-16 | 2013-09-11 | 中国兵器工业集团第七0研究所 | Novel crank-link mechanism |
| CN107387537A (en) * | 2017-09-15 | 2017-11-24 | 西北工业大学 | A kind of small-sized aviation piston engine novel combination type crank mechanism |
| CN107387537B (en) * | 2017-09-15 | 2023-03-31 | 西北工业大学 | Combined crankshaft mechanism of small aviation piston engine |
| CN108087415A (en) * | 2018-01-31 | 2018-05-29 | 十堰东峻汽车系统技术有限公司 | A kind of split type bent axle used for air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20121012 |