CN2929336Y - Motorcycle engine balance shaft - Google Patents
Motorcycle engine balance shaft Download PDFInfo
- Publication number
- CN2929336Y CN2929336Y CN 200620111019 CN200620111019U CN2929336Y CN 2929336 Y CN2929336 Y CN 2929336Y CN 200620111019 CN200620111019 CN 200620111019 CN 200620111019 U CN200620111019 U CN 200620111019U CN 2929336 Y CN2929336 Y CN 2929336Y
- Authority
- CN
- China
- Prior art keywords
- equilibrium block
- mass
- balancing
- shaft
- motorcycle
- 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 - Lifetime
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- Automatic Cycles, And Cycles In General (AREA)
Abstract
The utility model discloses an engine balance shaft of motorcycle, and shaft journals are provided on both left and right sides of the sector counterbalancing mass, wherein a shaft body portion and a thread sect are in the external extension of the shaft journals which is on the right side, a second balancing mass is provided on the portion which is in the third of the sector balancing mass and near the right end face. The utility model adds a second balancing mass on the foundation of the prior engine balance shaft with 150 displacements, and the structures of the other portions are the same as the prior technology. Because of adding a second balancing mass, and the magnitude of the mass of the second balancing mass is decided by the magnitude of the first-order reciprocating inertia force of the engine with 200 displacements, thereby through increasing the total mass of the balancing, the intense vibration generated during the time that the motorcycle with 200 displacements are running are ameliorated, and the utilization amenity, life and reliability are improved mass.
Description
Technical field
The utility model relates to a kind of motorcycle, especially the motorcycle engine trunnion shaft.
Background technique
At present, big discharge capacity motorcycle has generally all been set up balanced controls with single-cylinder engine, to reduce the vibration of motor self, improves engine performance.The motorcycle of big discharge capacity has all used the better simply relatively uniaxiality balance of structure mechanism with the single-cylinder engine great majority, with balance single order reciprocal inertia force, reaches the purpose that reduces engine luggine.And the employed trunnion shaft of motor of 200 discharge capacities is the trunnion shaft of using 150 displacement engines on the present market, the structure of this trunnion shaft is: there is axle journal the left and right sides at fan-shaped equilibrium block, so that be installed in the support of crankcase body, wherein the axle journal on right side is outward extended with axis body part and thread section, axis body is partly installed for driving gear, by the nut check that is sleeved on the thread section.The trunnion shaft of existing structure is used on 150 displacement engines, and its single order reciprocal inertia force of balance effectively reduces the vibration of 150 displacement engines preferably.But when being used on 200 displacement engines, effect is not very desirable, because 200 displacement engine reciprocal inertia forces are bigger than 150 displacement engines, so the vibration that 200 discharge capacity motorcycles are produced in motion is bigger, and the car load travelling comfort and the reliability of motorcycle are relatively poor.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of motorcycle engine trunnion shaft that can effectively reduce the vibration of 200 displacement engines.
The technical solution of the utility model is as follows: a kind of motorcycle engine trunnion shaft, comprise fan-shaped equilibrium block, axle journal, axis body part and thread section, there is axle journal the left and right sides at fan-shaped equilibrium block, wherein the axle journal on right side is outward extended with axis body part and thread section, and its key is: be provided with second equilibrium block near its 1/3rd places, right side on described fan-shaped equilibrium block.
Above-mentioned second equilibrium block is fan-shaped, and this second equilibrium block rides on the cambered surface of equilibrium block and with equilibrium block and is structure as a whole, and the center of the center of second equilibrium block and described equilibrium block all is positioned on the shaft axis of axle journal.
The utility model is on the basis of original 150 displacement engine trunnion shafves, set up one second equilibrium block, the remaining part structure is same as the prior art, when promptly being used on 200 displacement engines, the axis body part is still installed for driving gear, by the nut check that is sleeved on the thread section.Because second equilibrium block is arranged on close its 1/3rd places, right side on the fan-shaped equilibrium block, under the drive of driving gear, second equilibrium block just in time falls into gap corresponding on the crank-connecting rod when rotating, can not interfere with other part in the crankcase; The second mass of balance block size is by the size decision of the single order reciprocal inertia force of 200 displacement engines, like this by increasing the gross mass of equilibrium block, correspondingly improve the judder that 200 discharge capacity motorcycles are produced in motion, improved comfort, life-span and the reliability of motorcycle.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, the utility model is made up of axle journal 2, fan-shaped equilibrium block 1, second equilibrium block 6, axle journal 3, axis body part 4 and thread section 5 etc., axle journal 2,3 is arranged, so that be installed in the support of crankcase body in the left and right sides of fan-shaped equilibrium block 1.Wherein the axle journal 3 on right side is outward extended with axis body part 4 and thread section 5, and axis body part 4 is installed for driving gear, by the nut check that is sleeved on the thread section 5.On described fan-shaped equilibrium block 1, be provided with second equilibrium block 6 near its 1/3rd places, right side, second equilibrium block 6 is fan-shaped, this second equilibrium block 6 rides on the cambered surface of equilibrium block 1, and the center of the center of second equilibrium block 6 and described equilibrium block 1 all is positioned on the shaft axis of axle journal.
Axle journal 2,3 in the utility model, fan-shaped equilibrium block 1, the second equilibrium block 6, axis body part 4 and thread section 5 are structure as a whole, by forging molding again machine be added to required size.
Claims (2)
1, a kind of motorcycle engine trunnion shaft, comprise fan-shaped equilibrium block (1), axle journal (2,3), axis body part (4) and thread section (5), axle journal (2,3) is arranged in the left and right sides of fan-shaped equilibrium block (1), wherein the axle journal on right side (3) is outward extended with axis body part (4) and thread section (5), it is characterized in that: go up near its 1/3rd places, right side at described fan-shaped equilibrium block (1) and be provided with second equilibrium block (6).
2, motorcycle engine trunnion shaft according to claim 1, it is characterized in that: described second equilibrium block (6) is fan-shaped, this second equilibrium block (6) rides on the cambered surface of equilibrium block (1) and with equilibrium block (1) and is structure as a whole, and the center of the center of second equilibrium block (6) and described equilibrium block (1) all is positioned on the shaft axis of axle journal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620111019 CN2929336Y (en) | 2006-07-27 | 2006-07-27 | Motorcycle engine balance shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620111019 CN2929336Y (en) | 2006-07-27 | 2006-07-27 | Motorcycle engine balance shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929336Y true CN2929336Y (en) | 2007-08-01 |
Family
ID=38307718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620111019 Expired - Lifetime CN2929336Y (en) | 2006-07-27 | 2006-07-27 | Motorcycle engine balance shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929336Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105206B (en) * | 2007-08-02 | 2010-12-08 | 力帆实业(集团)股份有限公司 | Motorcycle engine vibration damping device |
| CN103527710A (en) * | 2013-10-28 | 2014-01-22 | 长城汽车股份有限公司 | Engine and balance shaft thereof |
-
2006
- 2006-07-27 CN CN 200620111019 patent/CN2929336Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105206B (en) * | 2007-08-02 | 2010-12-08 | 力帆实业(集团)股份有限公司 | Motorcycle engine vibration damping device |
| CN103527710A (en) * | 2013-10-28 | 2014-01-22 | 长城汽车股份有限公司 | Engine and balance shaft thereof |
| CN103527710B (en) * | 2013-10-28 | 2015-11-18 | 长城汽车股份有限公司 | For motor trunnion shaft and there is its motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIFAN INDUSTRIAL (GROUP) CO. Free format text: FORMER NAME OR ADDRESS: CHONGQING LIFAN INDUSTRY (GROUP) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400037 Patentee after: Lifan Industrial(Group) Co., Ltd. Address before: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400037 Patentee before: Lifan Industry (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070801 |
|
| EXPY | Termination of patent right or utility model |