CN203412914U - Motorcycle engine crank link mechanism - Google Patents
Motorcycle engine crank link mechanism Download PDFInfo
- Publication number
- CN203412914U CN203412914U CN201320443518.3U CN201320443518U CN203412914U CN 203412914 U CN203412914 U CN 203412914U CN 201320443518 U CN201320443518 U CN 201320443518U CN 203412914 U CN203412914 U CN 203412914U
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- CN
- China
- Prior art keywords
- crank
- connecting rod
- crankweb
- motorcycle engine
- link
- 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)
- Transmission Devices (AREA)
Abstract
The utility model discloses a motorcycle engine crank link mechanism. The mechanism comprises a piston combination, a link, crank pins, a left crank and a right crank, wherein one end of the link is connected with the piston combination, and the other end of the link is connected with respective crank arms of the left crank and the right crank through the crank pins. The mechanism is characterized in that two ends of the crank pins are inwardly provided with hole slots; two side surfaces of the crank arms, connected with the crank pins, of the left crank and the right crank, are inner concave arc surfaces; the crank arms of the left crank and the right crank far from the connected places with the crank pins are spaced with projections totally taking the shape of semicircles. The motorcycle engine crank link mechanism has the advantages that the structure is simple, engine vibration can be reduced, riding comfort is provided, the engine service life is prolonged and the product production cost is lowered.
Description
Technical field
The utility model relates to a kind of Motorcycle Engine Technology field, especially relates to a kind of motorcycle engine crank connecting.
Background technique
The connecting rod of motor is the gearing mechanism for cylinder acting output, is a kind of special rotating machinery, and wherein crank section rotates around running shaft, and its inner unbalance mass, produces rotating inertia force.Shaft portion is done translation, its movement locus more complicated, conventionally by its substitution of mass to crank section and piston portion, replacement is arrived the quality of crank section as a part for crank, consider together with crank sole mass, the gyrating mass that is called mechanism, the inertial force not being cancelled that they produce when mechanism kinematic becomes a part of unbalanced force of mechanism.Piston portion quality and replacement are collectively referred to as the reciprocation mass of connecting rod to a part of connecting rod quality of piston, during mechanism kinematic, reciprocation mass is done linear reciprocating motion, because this motion is variable motion, therefore reciprocation mass also can produce unbalanced force when mechanism kinematic.Thus, making a concerted effort of the reciprocal inertia force that the rotating inertia force that the unbalanced force Shi You mechanism gyrating mass of connecting rod produces and reciprocation mass produce, when can making engine operation with joint efforts, this produces vibration, vibration is delivered on vehicle frame, cause the vibration of car load, thereby driver is not felt well, vehicle performance is had a negative impact simultaneously, find out and cut down this and make a concerted effort significant for the overall performance that improves vehicle.Therefore, take under certain conditions suitable a rational connecting rod of method design significant.
Existing a kind of connecting rod, its structure comprises piston in combination, connecting rod, crank pin, left crank, right crank, described connecting rod one end is connected with piston in combination, and the other end is connected with right crank crankweb separately with described left crank by described crank pin.Wherein existing crank pin is columniform overall structure, play the effect that connects left and right crank-connecting rod, described left crank and right crank, comprise separately a crankweb and the crankshaft being connected with crankweb, wherein the crankweb of left and right crank is symmetrical arranged, and the crankshaft length of left crank is longer than the crankshaft of right crank.Fig. 4 is the structure of the crankweb of left and right crank in existing motorcycle engine crank connecting rod mechanism, as shown in it, in crankweb 6, be relative two inclined-planes 7 with the bi-side of crank pin joint, in crankweb, the other end contrary with crank pin joint is provided with and is semi-moon shaped protruding 8.
This existing crank-connecting rod mechanism for engine, himself quality is larger, only considered the structural configuration of complete machine, emphasis is not considered the impact of unbalanced force, mechanism's unbalanced force is bigger than normal, causes motor and car load vibration larger in motorcycle is ridden at a high speed, and driver can obviously feel hand, human hair combing waste fiber crops, wing mirror blurred vision is also followed ghost image, has a strong impact on normal rider travelling comfort and Security.In addition, also exist consumptive material larger, the defect that cost of production is higher.
Model utility content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is how to provide a kind of sole mass less, the motorcycle engine crank connecting rod mechanism that car load operational shock is little, to improve driver's comfortable feel and Security, reduce production costs simultaneously.
In order to solve the problems of the technologies described above, in the utility model, adopted following technological scheme:
A kind of motorcycle engine crank connecting rod mechanism, comprise piston in combination, connecting rod, crank pin, left crank, right crank, described connecting rod one end is connected with piston in combination, the other end is connected with right crank crankweb separately with described left crank by described crank pin, it is characterized in that, end, described crank pin two ends is inwardly provided with hole slot, in the crankweb of described left crank and right crank, be indent arc shaped surface with the bi-side of crank pin joint, in the crankweb of left crank and right crank, away from crank pin joint direction, be arranged at intervals with the projection of whole semicircular in shape.
In the utility model, end, crank pin two ends borehole, alleviated crank pin weight, to in the crankweb of left and right crank, be indent arc shaped surface with the You Yuan inclined-plane, bi-side of crank pin joint simultaneously, by semilune, change the projection away from crank pin joint direction in the crankweb of left and right crank into spaced semicircle, like this, its out-shift of gravity center when crankweb overall weight alleviates, it is met and when crank pin design principle keeps moment of rotation constant, alleviated crank weight, and then make connecting rod operation more steady, car load vibration is less, improve car load and ridden travelling comfort and Security, saved construction material simultaneously, reduced cost of production.
The utility model can improve the runnability under each operating mode of motor better, makes its operation more steady, and engine luggine is little, when operating mode and changes in environmental conditions, engine luggine transition is mild, during whole vehicle state, car load vibration is little, and driver does not have discomfort.Therefore in sum, the utlity model has simple in structurely, can reduce engine luggine, provide and ride travelling comfort and Security, increasing service life of engine, reduces the advantages such as production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of independent crank pin in the utility model.
Fig. 3 is the schematic diagram of the independent crankweb structure of left and right crank in the utility model.
Fig. 4 is the structure of the crankweb of left and right crank in existing motorcycle engine crank connecting rod mechanism
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In this embodiment, shown in following Fig. 1-Fig. 3, a kind of motorcycle engine crank connecting rod mechanism, referring to Fig. 1, comprise piston in combination 3, connecting rod 4, crank pin 2, left crank 1, right crank 5, described connecting rod 4 one end are connected with piston in combination 3, and the other end is connected with right crank 5 crankweb separately with described left crank 1 by described crank pin 2; Wherein, referring to Fig. 2, described crank pin 2 ends, two ends are inwardly provided with hole slot 21, in the crankweb 6 of described left crank 1 and right crank 5, be indent arc shaped surface 7 with the bi-side of crank pin joint, in the crankweb of left crank and right crank, away from crank pin joint direction, be arranged at intervals with the projection 8 of whole semicircular in shape.
Improvement of the present utility model, can save on the basis of product material cost, makes more steady, comfortable, the safety of motor operation, meets driver and rides requirement.
Claims (1)
1.Yi Zhong motorcycle engine crank connecting rod mechanism, comprise piston in combination, connecting rod, crank pin, left crank, right crank, described connecting rod one end is connected with piston in combination, the other end is connected with right crank crankweb separately with described left crank by described crank pin, it is characterized in that, end, described crank pin two ends is inwardly provided with hole slot, in the crankweb of described left crank and right crank, be indent arc shaped surface with the bi-side of crank pin joint, in the crankweb of left crank and right crank, away from crank pin joint direction, be arranged at intervals with the projection of whole semicircular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443518.3U CN203412914U (en) | 2013-07-24 | 2013-07-24 | Motorcycle engine crank link mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443518.3U CN203412914U (en) | 2013-07-24 | 2013-07-24 | Motorcycle engine crank link mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412914U true CN203412914U (en) | 2014-01-29 |
Family
ID=49975803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320443518.3U Expired - Fee Related CN203412914U (en) | 2013-07-24 | 2013-07-24 | Motorcycle engine crank link mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972057A (en) * | 2016-05-31 | 2016-09-28 | 中国嘉陵工业股份有限公司（集团） | Method for lowering noise during working for large-displacement balance-shaft motorcycle engine |
-
2013
- 2013-07-24 CN CN201320443518.3U patent/CN203412914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972057A (en) * | 2016-05-31 | 2016-09-28 | 中国嘉陵工业股份有限公司（集团） | Method for lowering noise during working for large-displacement balance-shaft motorcycle engine |
| CN105972057B (en) * | 2016-05-31 | 2018-11-13 | 重庆嘉陵工业有限公司 | The method of sound when huge discharge balance shaft motorcycle engine reduces work |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151113 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Patentee after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: 400054 Huaxi Industrial Park, Banan District, Chongqing Road, No. 1 Patentee before: Chongqing Jianshe Motorcycle Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |