CN2709706Y - Balance axle mechanism of motor - Google Patents
Balance axle mechanism of motor Download PDFInfo
- Publication number
- CN2709706Y CN2709706Y CN 200420060114 CN200420060114U CN2709706Y CN 2709706 Y CN2709706 Y CN 2709706Y CN 200420060114 CN200420060114 CN 200420060114 CN 200420060114 U CN200420060114 U CN 200420060114U CN 2709706 Y CN2709706 Y CN 2709706Y
- Authority
- CN
- China
- Prior art keywords
- trunnion shaft
- balance shaft
- crank
- driven gear
- balance
- 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 balance shaft mechanism of an engine, comprising a balance shaft, a driving gear of the balance shaft and a driven gear of the balance shaft. The balance shaft mechanism is provided with at the rear upper position of the crank connecting rod mechanism of the engine, the driving gear of the balance shaft is installed on a right crank, closely adjoined with the right side of a crank pin, and fixed together with the crank through the driving gear of the balance shaft, the driven gear of the balance shaft is engaged with the driving gear of the balance shaft and simultaneously connected with the balance shaft with an eccentric weight through a semicircle key, and the two ends of the balance shaft are installed on left and right crankshaft box bodies through bearing supports. The utility model makes the compact structure through the reasonable layout, balances the inertial force of the crank in the maximum degree, and reduces the vibration and the noise of the engine.
Description
Technical field
The utility model relates to the motorcycle engine vibration damping structure, is specifically related to a kind of balance shaft mechanism of motor.
Background technique
The drive safety and the travelling comfort of the influence of vibration motorcycle in the motorcycle engine working procedure.Study carefully its vibrative reason, be because the connnecting rod big end and the crank pin of motor can produce rotating inertia force when crankshaft rotating, connecting rod small end, piston etc. also can produce reciprocal inertia force along the engine cylinder-body to-and-fro motion simultaneously, these two kinds of inertial force can be balanced by the counterweight major part on the connecting rod, but exist the sub-fraction reciprocal inertia force can not be, so make motor produce the different vibration of degree by thorough balance.Reason at the vibration generation, present existing settling mode is that the position is provided with the trunnion shaft damper mechanism near connecting rod, as ZL02253189.0, this mechanism is designed in the front lower place of bent axle usually, the trunnion shaft driving gear is contained in the crankcase body outside, clutch driving gear inboard, the trunnion shaft driven gear that is engaged with is contained in the crankcase body outside too, the trunnion shaft that has counterweight then is contained among the crankcase body of the left and right sides, the deficiency that such structural configuration mode exists is: intermeshing trunnion shaft master, away from crankshaft-link rod and trunnion shaft, the moment of generation can weaken the influence to balance inertial force to driven tooth in the crankcase body outside; In addition, this layout is relatively poor relatively, and structure is not compact.Also have, the driving and driven gear of existing trunnion shaft can also can bring vibration and produce noise when the engagement transferring power, and does not have corresponding structure design to slow down on the driven gear or eliminate this vibration and noise.
Summary of the invention
The purpose of this utility model is that the deficiency that exists is gone up in design at the available engine balance shaft mechanism, a kind of balance shaft mechanism of motor is provided,, makes its compact structure by rational layout, balance crankshaft inertial force reduces engine luggine and noise to greatest extent.
The technical solution of the utility model is as follows:
A kind of balance shaft mechanism of motor mainly is made of trunnion shaft actuation gear, trunnion shaft driven gear and trunnion shaft.This balance shaft mechanism is installed in the back upper place of the connecting rod of motor, its objective is to make whole topology layout compactness.The trunnion shaft actuation gear is contained on the right crank, near the crank pin right side, and is fixed as one by trunnion shaft actuation gear pin and crank.Trunnion shaft driven gear and the engagement of trunnion shaft actuation gear are connected by the trunnion shaft of woodruff key with the band eccentrically mounted weight simultaneously, and the two ends of trunnion shaft are installed on the crankcase body of the left and right sides by bearings.Like this trunnion shaft driven gear and trunnion shaft actuation gear are contained in the crankcase body of the left and right sides, the point of action of driving and driven gear is relatively near crank-connecting rod, and balance inertial force reduces the vibration of motor better.
Further, in order to alleviate and even to eliminate the trunnion shaft actuation gear, the vibration that driven gear brings when the engagement transferring power and the noise of generation, this mechanism is provided with the buffering axle sleeve at trunnion shaft driven gear center, the center hole of this buffering axle sleeve connects trunnion shaft, between the outer rim of the inner edge inner edge of trunnion shaft driven gear and buffering axle sleeve a plurality of damping springs are set evenly along the circumferential direction, and alligator is set in damping spring, impact force when damping spring meshes in order to buffering, reduce engine luggine and noise, alligator can slow down the fatigue load of spring, guarantees effective performance of cushioning effect.
By above-mentioned structure as seen, the advantage that the utility model had is: by with the back upper place of this arrangement of mechanism at bent axle, and be installed in the crankcase of the left and right sides this reasonable compact structure layout, balance crankshaft inertial force reduces the vibration of motor to greatest extent; Design by buffering axle sleeve in the driven gear reduces engine start, stops and suddenly quickening, impact force and mechanical noise during anxious the deceleration.
Description of drawings
Fig. 1 is that the utility model is connected the structural scheme of mechanism of arranging with the connecting rod of motor.
Fig. 2 is that trunnion shaft actuation gear, driven gear are in the phase diagram of meshing transferring power.
Embodiment
Referring to Fig. 1, the balance shaft mechanism of this motor is installed in the back upper place of the connecting rod of motor, and it mainly includes trunnion shaft actuation gear 10, trunnion shaft driven gear 14 and trunnion shaft 15.Trunnion shaft actuation gear 10 is contained on the right crank 12, and it is near the right side of crank pin 9, and is fixed as one by trunnion shaft actuation gear pin 13 and right crank 12, with its rotation.Trunnion shaft driven gear 14 and 10 engagements of trunnion shaft actuation gear are connected with the trunnion shaft 15 of band eccentrically mounted weight by woodruff key 21, trunnion shaft driven gear packing ring 20 simultaneously, drive trunnion shaft 15.The two ends of trunnion shaft 15 are supported by bearing 22 and balance shaft filler washer 18 and are installed on the crankcase body of the left and right sides, and lock with trunnion shaft nut 16 and nut collar 17 in the trunnion shaft outer end that trunnion shaft driven gear 14 these ends are installed.Among the figure, the 1st, the piston of motor, the 2nd, piston ring one, 3rd, piston ring two, 4th, oil ring assembly, the 5th, wrist pin, the 6th, retaining ring for piston pin, the 7th, connecting rod, the 8th, major part needle bearing, 23 and 11 is bearings, the 24th, and left crank, these all are the structure members of available engine, do not change.
Referring to Fig. 2, the center of trunnion shaft driven gear 14 is provided with buffering axle sleeve 19 (in conjunction with Fig. 1), the center hole of this buffering axle sleeve 19 is used to connect trunnion shaft 10, between the outer rim of the inner edge of trunnion shaft driven gear and buffering axle sleeve 19 a plurality of damping springs 26 are set evenly along the circumferential direction, and alligator 25 is set in damping spring.Among the figure, the A point is the assembly mark of two gears.
Claims (2)
1, a kind of balance shaft mechanism of motor includes trunnion shaft actuation gear, trunnion shaft driven gear and trunnion shaft, it is characterized in that, this balance shaft mechanism is installed in the back upper place of the connecting rod of motor; The trunnion shaft actuation gear is contained on the right crank, near the crank pin right side, and is fixed as one by trunnion shaft actuation gear pin and crank; Trunnion shaft driven gear and the engagement of trunnion shaft actuation gear are connected by the trunnion shaft of woodruff key with the band eccentrically mounted weight simultaneously, and the two ends of trunnion shaft are installed on the crankcase body of the left and right sides by bearings.
2, the balance shaft mechanism of motor according to claim 1, it is characterized in that, trunnion shaft driven gear center is provided with the buffering axle sleeve, center hole by this buffering axle sleeve connects trunnion shaft, between the outer rim of trunnion shaft driven gear center inner edge and buffering axle sleeve a plurality of damping springs are set evenly along the circumferential direction, and alligator is set in damping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060114 CN2709706Y (en) | 2004-07-03 | 2004-07-03 | Balance axle mechanism of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060114 CN2709706Y (en) | 2004-07-03 | 2004-07-03 | Balance axle mechanism of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709706Y true CN2709706Y (en) | 2005-07-13 |
Family
ID=34851979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060114 Expired - Fee Related CN2709706Y (en) | 2004-07-03 | 2004-07-03 | Balance axle mechanism of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709706Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564935C (en) * | 2007-04-28 | 2009-12-02 | 力帆实业(集团)股份有限公司 | A kind of engine balance mechanism for motorcycle |
| 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 |
| CN101463879B (en) * | 2007-12-19 | 2012-03-21 | 上海和鹰机电科技股份有限公司 | Enhanced balance shaft apparatus used for automatic cutting machine |
| CN103994178A (en) * | 2014-05-30 | 2014-08-20 | 徐亚珍 | Motorcycle balance shaft gear assembly |
| CN104802113A (en) * | 2015-04-10 | 2015-07-29 | 力帆实业(集团)股份有限公司 | Fixture for fastening balance shaft |
| CN104863709A (en) * | 2014-02-20 | 2015-08-26 | 光阳工业股份有限公司 | Tight engine capable of reducing abnormal operation noise |
| CN107856058A (en) * | 2017-12-06 | 2018-03-30 | 华北理工大学 | A kind of industrial robot joint drive device |
| CN109322741A (en) * | 2018-09-26 | 2019-02-12 | 绵阳新晨动力机械有限公司 | A kind of engine assembly |
-
2004
- 2004-07-03 CN CN 200420060114 patent/CN2709706Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100564935C (en) * | 2007-04-28 | 2009-12-02 | 力帆实业(集团)股份有限公司 | A kind of engine balance mechanism for motorcycle |
| 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 |
| CN101463879B (en) * | 2007-12-19 | 2012-03-21 | 上海和鹰机电科技股份有限公司 | Enhanced balance shaft apparatus used for automatic cutting machine |
| CN104863709A (en) * | 2014-02-20 | 2015-08-26 | 光阳工业股份有限公司 | Tight engine capable of reducing abnormal operation noise |
| CN103994178A (en) * | 2014-05-30 | 2014-08-20 | 徐亚珍 | Motorcycle balance shaft gear assembly |
| CN104802113A (en) * | 2015-04-10 | 2015-07-29 | 力帆实业(集团)股份有限公司 | Fixture for fastening balance shaft |
| CN107856058A (en) * | 2017-12-06 | 2018-03-30 | 华北理工大学 | A kind of industrial robot joint drive device |
| CN107856058B (en) * | 2017-12-06 | 2023-09-19 | 华北理工大学 | Industrial robot joint driving device |
| CN109322741A (en) * | 2018-09-26 | 2019-02-12 | 绵阳新晨动力机械有限公司 | A kind of engine assembly |
| CN109322741B (en) * | 2018-09-26 | 2023-12-19 | 绵阳新晨动力机械有限公司 | Engine 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: 20050713 Termination date: 20100703 |