CN203035891U - Balance shaft assembly of engine of motorcycle - Google Patents
Balance shaft assembly of engine of motorcycle Download PDFInfo
- Publication number
- CN203035891U CN203035891U CN 201220719648 CN201220719648U CN203035891U CN 203035891 U CN203035891 U CN 203035891U CN 201220719648 CN201220719648 CN 201220719648 CN 201220719648 U CN201220719648 U CN 201220719648U CN 203035891 U CN203035891 U CN 203035891U
- Authority
- CN
- China
- Prior art keywords
- balance shaft
- trunnion shaft
- shaft
- master gear
- engine
- 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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Abstract
The utility model discloses a balance shaft assembly of an engine of a motorcycle. The balance shaft assembly comprises a balance shaft (1); a balance shaft main gear (2) is sleeved on the balance shaft (1); a balance shaft auxiliary gear (3) is sleeved on the balance shaft main gear (2); the balance shaft auxiliary gear (3) is limited by a butterfly washer (4) and a ring-shield (5); two symmetrical first grooves (2a) are arranged on the balance shaft main gear (2); second grooves (3a) corresponding to the first grooves (2a) are arranged on the balance shaft auxiliary gear (3); and springs (7) parallel to end surfaces of the gears are arranged in cavities formed by the first grooves (2a) and the second grooves (3a). The balance shaft assembly has the advantages that first-order vibration and second-order vibration which are generated by reciprocating inertial force of a piston of the engine and a small head of a connecting rod can be reduced or balanced, so that the engine is stable during transmission and is low in noise.
Description
Technical field
The utility model relates to a kind of balance shaft module of motorcycle engine.
Background technique
When the piston of motorcycle engine and link lever high-speed motion, with producing huge inertial force, cause vibration, thereby reduce life-span and the reliability of motor.For alleviating vibration, can increase suitable counterweight at bent axle, to alleviate the vibration of bent axle.But because what transmit is the alternation active force between the trunnion shaft actuation gear on the bent axle and the trunnion shaft, and there is the gap in the gear engagement, so motor will produce second order in working procedure and vibrate.
Therefore those skilled in the art are devoted to develop a kind of little balance shaft module of engine luggine that makes.
The model utility content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of little balance shaft module of engine luggine that makes.
For achieving the above object, the utility model provides a kind of motorcycle engine balance shaft module, comprises trunnion shaft; Be set with the trunnion shaft master gear on the described trunnion shaft; Be set with the trunnion shaft pinion on the described trunnion shaft master gear; Described trunnion shaft pinion is spacing by butterfly gasket and shaft block ring; Described trunnion shaft master gear is provided with first groove of two position symmetries; Described trunnion shaft pinion is provided with second groove corresponding with described first groove location; Be provided with the spring parallel with gear face in the cavity of described first groove and second groove formation.
Preferable, the internal diameter of described trunnion shaft master gear is 18mm; The internal diameter of described trunnion shaft pinion is 32mm.
Preferable, described trunnion shaft master gear is connected with described trunnion shaft by woodruff key; Described trunnion shaft master gear is by the shaft shoulder axial limiting on the described trunnion shaft.
The beneficial effects of the utility model are: the utility model can reduce or the piston of balanced engine and single order and the second order vibration that the connecting rod small end reciprocal inertia force produces, and makes the motor stable drive, and noise is little.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the partial enlarged drawing at I place among Fig. 1.
Fig. 3 is the left TV structure schematic representation of Fig. 1.
Fig. 4 is the A-A sectional structure schematic representation of Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figures 1 to 4, a kind of motorcycle engine balance shaft module comprises trunnion shaft 1, is set with trunnion shaft master gear 2 by woodruff key 6 on the trunnion shaft 1.Be set with trunnion shaft pinion 3 on the trunnion shaft master gear 2, trunnion shaft pinion 3 is spacing by butterfly gasket 4 and shaft block ring 5.Trunnion shaft master gear 2 is provided with the first groove 2a of two position symmetries, trunnion shaft pinion 3 is provided with the second groove 3a corresponding with the first groove 2a position, is provided with the spring parallel with gear face 7 in the cavity of the first groove 2a and second groove 3a formation.
The internal diameter of trunnion shaft master gear 2 is 18mm, and the internal diameter of trunnion shaft pinion 3 is 32mm.
(these section words of suggestion cancellation and corresponding partial view) trunnion shaft master gear 2 is by the shaft shoulder 1a axial limiting on the trunnion shaft 1.In the present embodiment, the distance L between the end face 2b of trunnion shaft master gear 2 and the end face 1c of trunnion shaft 1 is 0.2mm, and in other embodiments, the L value also can be other values between the 0.1-0.3mm, to reach essentially identical technique effect.
When assembling master gear 2 and pinion 3, master gear 2 and pinion 3 are staggered,, vibrate thereby reduce to eliminate the gap between trunnion shaft driving gear and the driven gear by spring 7.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (3)
1. a motorcycle engine balance shaft module comprises trunnion shaft (1); Be set with trunnion shaft master gear (2) on the described trunnion shaft (1); It is characterized in that: be set with trunnion shaft pinion (3) on the described trunnion shaft master gear (2); Described trunnion shaft pinion (3) is spacing by butterfly gasket (4) and shaft block ring (5); The end face of described trunnion shaft master gear (2) is provided with first groove (2a) of two position symmetries; The end face of described trunnion shaft pinion (3) is provided with second groove (3a) corresponding with described first groove (2a) position; Be provided with the spring parallel with gear face (7) in the cavity of described first groove (2a) and second groove (3a) formation.
2. motorcycle engine balance shaft module as claimed in claim 1, it is characterized in that: the internal diameter of described trunnion shaft master gear (2) is 18mm; The internal diameter of described trunnion shaft pinion (3) is 32mm.
3. motorcycle engine balance shaft module as claimed in claim 1 or 2 is characterized in that: described trunnion shaft master gear (2) is connected with described trunnion shaft (1) by woodruff key (6); Described trunnion shaft master gear (2) is by the shaft shoulder (1a) axial limiting on the described trunnion shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719648 CN203035891U (en) | 2012-12-24 | 2012-12-24 | Balance shaft assembly of engine of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719648 CN203035891U (en) | 2012-12-24 | 2012-12-24 | Balance shaft assembly of engine of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035891U true CN203035891U (en) | 2013-07-03 |
Family
ID=48688020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719648 Expired - Fee Related CN203035891U (en) | 2012-12-24 | 2012-12-24 | Balance shaft assembly of engine of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452661A (en) * | 2013-08-20 | 2013-12-18 | 奇瑞汽车股份有限公司 | Axial thrust device for balance shaft |
| CN103994178A (en) * | 2014-05-30 | 2014-08-20 | 徐亚珍 | Motorcycle balance shaft gear assembly |
-
2012
- 2012-12-24 CN CN 201220719648 patent/CN203035891U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452661A (en) * | 2013-08-20 | 2013-12-18 | 奇瑞汽车股份有限公司 | Axial thrust device for balance shaft |
| CN103994178A (en) * | 2014-05-30 | 2014-08-20 | 徐亚珍 | Motorcycle balance shaft gear assembly |
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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: 20130703 Termination date: 20131224 |