CN201129431Y - Balance driven gear - Google Patents
Balance driven gear Download PDFInfo
- Publication number
- CN201129431Y CN201129431Y CNU2007201886104U CN200720188610U CN201129431Y CN 201129431 Y CN201129431 Y CN 201129431Y CN U2007201886104 U CNU2007201886104 U CN U2007201886104U CN 200720188610 U CN200720188610 U CN 200720188610U CN 201129431 Y CN201129431 Y CN 201129431Y
- Authority
- CN
- China
- Prior art keywords
- wheel disc
- inner ring
- outer ring
- ring wheel
- ring gear
- 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
Links
Images
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model discloses a balance driven gear which comprises an outer ring gear, an inner ring wheel disc, a damping spring and damping rubber, wherein the outer ring gear is sleeved on the inner wheel disc, a through hole with key slots is arranged in the middle of the inner ring wheel disc, at least two cylindrical grooves and rectangular grooves are separately arranged on a joint face of the outer ring gear and the inner ring wheel disc, the cylindrical groove is internally equipped with the damping rubber, and the center of the damping rubber is located on a tangential line of the joint face of the outer ring gear and the inner ring wheel disc. The rectangular groove is equipped with the damping spring, and the central axis of the damping spring is tangential with the joint face of the outer ring gear and the inner ring wheel disc. The balance driven gear is characterized in that the balance driven gear is further equipped with a cylindrical limit pin, and the damping spring is sleeved on the limit pin. The balance driven gear has the advantages that the limit pin which is made of ordinary materials can be used permanently, and can reliably limit the maximum displacement between the outer ring gear and the inner ring wheel disc, thereby protecting damping elements and prolonging the service life of products.
Description
Technical field
The utility model belongs to vehicle crankcase accessory, specifically, is the balance driven gear in a kind of crankshaft box of motorcycle engine.
Background technique
The structure that is used at present to prevent or reduces trunnion shaft driving gear noise adopts the elastic element vibration damping more, such as balance driven gear, as shown in Figure 3: the balance driven gear comprises the outer ring gear, the inner ring wheel disc, damping spring and damping rubber, described outer ring gear set is on the inner ring wheel disc, the central authorities of inner ring wheel disc are the through hole that has keyway, alternate at least two cylindrical grooves and at least two rectangle grooves of having on the junction plane of described outer ring gear and inner ring wheel disc, wherein be placed with described damping rubber in the cylindrical groove, wherein on the tangent line that is centered close to described outer ring gear and inner ring wheel disc junction plane of damping rubber; Be placed with described damping spring in the rectangle groove, the central axis of described damping spring and described outer ring gear and inner ring wheel disc junction plane are tangent, simultaneously, on the inwall of described outer ring gear, have restraining groove, be fixed with position limit pin on the outer wall of described inner ring wheel disc, this position limit pin is positioned at the restraining groove of described outer ring gear.Its working principle is, the inner ring wheel disc is fixed on the trunnion shaft, when the outer ring gear receives external force, make outer ring gear and inner ring wheel disc form displacement, produce rotatablely moving mutually of moment between the two, squeezed air-damping spring and damping rubber are out of shape, and reach the purpose of noise reduction weakening, guarantee that the outer ring gear transmits rotation function reposefully to the inner ring wheel disc.But excessive when the displacement between outer ring gear and the inner ring wheel disc, seriously squeezed air-damping spring and damping rubber influence the elasticity and the working life of damping member.For this reason, position limit pin and restraining groove are set, when the stroke between outer ring gear and the inner ring wheel disc is excessive, position limit pin and restraining groove butt, with the maximum displacement between restriction outer ring gear and the inner ring wheel disc, the protection damping member is not subjected to excessive external force.
But its shortcoming is: in case the external force that position limit pin bears is excessive; position limit pin can't bear excessive transverse stress, will be squeezed off by external force, loses protective action; so can only adopt the hardness height; the material that the resistance to compression degree is strong could guarantee that position limit pin can not rupture, for guaranteeing that position limit pin does not come off; also need to use interference fit; increased manufacture cost and technology difficulty, and the external force that position limit pin bears is limited all the time, is difficult to bear impacting with high pressure.
The model utility content
The purpose of this utility model provides a kind of balance driven gear, and its position limit pin adopts common material just can forever use, even bear impacting with high pressure, also can reliably limit the maximum displacement between outer ring gear and the inner ring wheel disc, the protection damping member.
For achieving the above object, a kind of balance driven gear described in the utility model, comprise outer ring gear, inner ring wheel disc, damping spring and damping rubber, described outer ring gear set is on the inner ring wheel disc, the central authorities of inner ring wheel disc are the through hole that has keyway, alternate at least two cylindrical grooves and at least two rectangle grooves of having on the junction plane of described outer ring gear and inner ring wheel disc, wherein be placed with described damping rubber in the cylindrical groove, wherein on the tangent line that is centered close to described outer ring gear and inner ring wheel disc junction plane of damping rubber; Be placed with described damping spring in the rectangle groove, the central axis of described damping spring and described outer ring gear and inner ring wheel disc junction plane are tangent, and its key is: also be provided with cylindrical position limit pin, described damping spring is sleeved on this position limit pin.
When the displacement between outer ring gear and the inner ring wheel disc is excessive; the rectangle groove distortion; its two ends are connected to two of position limit pin respectively, thereby limited pin limits the two further displacement, reach the protection damping member and can therefore further not deform; simultaneously; position limit pin only is subjected to axial pressure, the phenomenon that fractures can not occur, therefore; only adopt common material just can reach the spacing effect of resistance to compression, and can forever use.
Interleaved on the junction plane of described outer ring gear and inner ring wheel disc have two cylindrical grooves and two rectangle grooves.
Can alternately arrange on the junction plane of outer ring gear and inner ring wheel disc a plurality of cylindrical grooves and rectangle groove, specifically the size of the impact force that can be born according to the balance driven gear is determined.
Described damping rubber is a cylindrical rubber.
Described cylindrical groove and rectangle groove all are grooves, the lower end surface that the upper-end surface of described outer ring gear and inner ring wheel disc connecting part is coated with overhead gage, described outer ring gear and inner ring wheel disc connecting part is coated with lower pedal, and described overhead gage and lower pedal shelter from the notch at cylindrical groove and rectangle groove two ends respectively.
Have circular groove in described inner ring wheel disc external wall of upper portion, this circular groove internal fixation has collar, and this collar is fixed on described overhead gage the upper-end surface of described outer ring gear and inner ring wheel disc connecting part.
Also be provided with saucer washer between collar and overhead gage, saucer washer is effectively eliminated the effect of axial clearance.
The central authorities of described lower pedal are the through hole that has the baffle plate keyway, and described lower pedal communicates with the through hole of inner ring wheel disc, and described baffle plate keyway communicates with described keyway.
The same positioning key of plug-in mounting in baffle plate keyway and the described keyway is convenient to make the purpose of lower pedal and inner ring wheel disc overall fixed.
Remarkable result of the present utility model is: a kind of balance driven gear is provided; its position limit pin adopts common material just can forever use, even bear impacting with high pressure, also can reliably limit the maximum displacement between outer ring gear and the inner ring wheel disc; the protection damping member, the working life of prolongation product.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a side view of the present utility model;
Fig. 3 is the prior art constructions schematic representation.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, 2: a kind of balance driven gear, form by outer ring gear 1, inner ring wheel disc 2, damping spring 3, damping rubber 4 and position limit pin 5, described outer ring gear 1 is sleeved on the inner ring wheel disc 2, the central authorities of inner ring wheel disc 2 are the through hole that has keyway a, alternate at least two cylindrical grooves and at least two rectangle grooves of having on the junction plane of described outer ring gear 1 and inner ring wheel disc 2, wherein be placed with described damping rubber 4 in the cylindrical groove, wherein on the tangent line that is centered close to described outer ring gear 1 and inner ring wheel disc 2 junction planes of damping rubber 4; Be placed with described damping spring 3 in the rectangle groove, the central axis of described damping spring 3 and described outer ring gear 1 and inner ring wheel disc 2 junction planes are tangent, and described damping spring 3 is sleeved on the described position limit pin 5.
Interleaved on the junction plane of described outer ring gear 1 and inner ring wheel disc 2 have two cylindrical grooves and two rectangle grooves.
Can alternately arrange on the junction plane of outer ring gear 1 and inner ring wheel disc 2 a plurality of cylindrical grooves and rectangle groove, specifically the size of the impact force that can be born according to the balance driven gear is determined.
Described damping rubber 4 is a cylindrical rubber.
Described cylindrical groove and rectangle groove all are grooves, the lower end surface that the upper-end surface of described outer ring gear 1 and inner ring wheel disc 2 connecting parts is coated with overhead gage 6, described outer ring gear 1 and inner ring wheel disc 2 connecting parts is coated with lower pedal 7, and described overhead gage 6 and lower pedal 7 shelter from the notch at cylindrical groove and rectangle groove two ends respectively.
Have circular groove in described inner ring wheel disc 2 external wall of upper portion, this circular groove internal fixation has collar 8, and this collar 8 is fixed on described overhead gage 6 upper-end surface of described outer ring gear 1 and inner ring wheel disc 2 connecting parts.
The central authorities of described lower pedal 7 are the through hole that has baffle plate keyway b, and described lower pedal 7 communicates with the through hole of inner ring wheel disc 2, and described baffle plate keyway b communicates with described keyway a.
The same positioning key of plug-in mounting in baffle plate keyway b and the described keyway a is convenient to make the purpose of lower pedal 7 and inner ring wheel disc 2 overall fixed.
Working principle of the present utility model is:
Inner ring wheel disc 2 is fixed on the trunnion shaft, when outer ring gear 1 receives external force, make outer ring gear 1 form displacement to inner ring wheel disc 2, produce rotatablely moving mutually of moment between the two, squeezed air-damping spring 3 and damping rubber 4 distortion, reach the purpose of noise reduction weakening, guarantee that outer ring gear 1 can transmit rotation function reposefully mutually to inner ring wheel disc 2.
When the displacement between outer ring gear 1 and the inner ring wheel disc 2 is excessive; the rectangle groove distortion; its two ends are connected to two of position limit pin 5 respectively; thereby limited pin 5 limits the two further displacement; reaching the protection damping member therefore can further not deform; simultaneously, 5 of position limit pins are subjected to axial pressure, the phenomenon that fractures can not occur.
Claims (6)
1, a kind of balance driven gear, comprise outer ring gear (1), inner ring wheel disc (2), damping spring (3) and damping rubber (4), described outer ring gear (1) is sleeved on the inner ring wheel disc (2), the central authorities of inner ring wheel disc (2) are for having the through hole of keyway (a), alternate at least two cylindrical grooves and at least two rectangle grooves of having on the junction plane of described outer ring gear (1) and inner ring wheel disc (2), wherein be placed with described damping rubber (4) in the cylindrical groove, wherein on the tangent line that is centered close to described outer ring gear (1) and inner ring wheel disc (2) junction plane of damping rubber (4); Be placed with described damping spring (3) in the rectangle groove, the central axis of described damping spring (3) and described outer ring gear (1) and inner ring wheel disc (2) junction plane are tangent, it is characterized in that: also be provided with cylindrical position limit pin (5), described damping spring (3) is sleeved on this position limit pin (5).
2, a kind of balance driven gear according to claim 1 is characterized in that: interleaved on the junction plane of described outer ring gear (1) and inner ring wheel disc (2) have two cylindrical grooves and two rectangle grooves.
3, a kind of balance driven gear according to claim 1 is characterized in that: described damping rubber (4) is a cylindrical rubber.
4, a kind of balance driven gear according to claim 1, it is characterized in that: described cylindrical groove and rectangle groove all are grooves, the lower end surface that the upper-end surface of described outer ring gear (1) and inner ring wheel disc (2) connecting part is coated with overhead gage (6), described outer ring gear (1) and inner ring wheel disc (2) connecting part is coated with lower pedal (7), and described overhead gage (6) and lower pedal (7) shelter from the notch at cylindrical groove and rectangle groove two ends respectively.
5, according to claim 1 or 4 described a kind of balance driven gears, it is characterized in that: have circular groove in described inner ring wheel disc (2) external wall of upper portion, this circular groove internal fixation has collar (8), and this collar (8) is fixed on described overhead gage (6) upper-end surface of described outer ring gear (1) and inner ring wheel disc (2) connecting part.
6, according to claim 1 or 4 described a kind of balance driven gears, it is characterized in that: the central authorities of described lower pedal (7) are for having the through hole of baffle plate keyway (b), described lower pedal (7) communicates with the through hole of inner ring wheel disc (2), and described baffle plate keyway (b) communicates with described keyway (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201886104U CN201129431Y (en) | 2007-12-21 | 2007-12-21 | Balance driven gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201886104U CN201129431Y (en) | 2007-12-21 | 2007-12-21 | Balance driven gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129431Y true CN201129431Y (en) | 2008-10-08 |
Family
ID=40017275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201886104U Expired - Fee Related CN201129431Y (en) | 2007-12-21 | 2007-12-21 | Balance driven gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129431Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893081A (en) * | 2010-07-23 | 2010-11-24 | 重庆隆鑫机车有限公司 | Driven gear of engine balance shaft |
| CN102062195A (en) * | 2011-01-05 | 2011-05-18 | 张茂华 | Gear for eliminating mechanical inertia and impact force |
| CN103578176A (en) * | 2012-07-19 | 2014-02-12 | 日立欧姆龙金融系统有限公司 | Paper money transaction device |
| CN103912656A (en) * | 2014-04-03 | 2014-07-09 | 中国船舶重工集团公司第七一一研究所 | Vibration-damping type gear |
| CN104295661A (en) * | 2014-10-30 | 2015-01-21 | 济南轻骑摩托车有限公司 | Buffer and vibration absorption device of engine balance shaft of bestriding motorcycle |
| CN105581563A (en) * | 2016-02-17 | 2016-05-18 | 陆玉正 | Semi-damping baby walker |
| CN108278351A (en) * | 2018-01-26 | 2018-07-13 | 常州工学院 | The design method of vibration-reduction gear and the alloy pin based on high damping alloy pin |
-
2007
- 2007-12-21 CN CNU2007201886104U patent/CN201129431Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893081A (en) * | 2010-07-23 | 2010-11-24 | 重庆隆鑫机车有限公司 | Driven gear of engine balance shaft |
| CN102062195A (en) * | 2011-01-05 | 2011-05-18 | 张茂华 | Gear for eliminating mechanical inertia and impact force |
| CN103578176A (en) * | 2012-07-19 | 2014-02-12 | 日立欧姆龙金融系统有限公司 | Paper money transaction device |
| CN103912656A (en) * | 2014-04-03 | 2014-07-09 | 中国船舶重工集团公司第七一一研究所 | Vibration-damping type gear |
| CN104295661A (en) * | 2014-10-30 | 2015-01-21 | 济南轻骑摩托车有限公司 | Buffer and vibration absorption device of engine balance shaft of bestriding motorcycle |
| CN105581563A (en) * | 2016-02-17 | 2016-05-18 | 陆玉正 | Semi-damping baby walker |
| CN108278351A (en) * | 2018-01-26 | 2018-07-13 | 常州工学院 | The design method of vibration-reduction gear and the alloy pin based on high damping alloy pin |
| CN108278351B (en) * | 2018-01-26 | 2021-12-24 | 常州工学院 | Vibration reduction gear based on high-damping alloy pin and design method of alloy pin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201129431Y (en) | Balance driven gear | |
| CN202032010U (en) | Coupler with liner expanding sleeves and keys between hubs | |
| CN102661330A (en) | Novel clutch for tricycle | |
| CN105422733A (en) | Torsion damper and engineering vehicle | |
| CN202203298U (en) | Rubber elastic body coupler | |
| CN201121695Y (en) | Novel balancing shaft buffering gear | |
| CN205780576U (en) | A kind of automobile dual-mass flywheel safety device with self-lock mechanism | |
| CN201121550Y (en) | Steel flywheel of general petrol engine | |
| CN2895896Y (en) | Elastic gear for diesel engine | |
| CN205260661U (en) | Torsional damper and engineering vehicle | |
| CN201568466U (en) | Elastic pin coupler | |
| CN207975160U (en) | A kind of reinforcement clutch drived disk assy | |
| CN208670000U (en) | Engine crankshaft damper pulley and engine crankshaft damper pulley structure | |
| CN201875095U (en) | Elastic gear | |
| CN210318240U (en) | Self-adaptive normally closed motorcycle clutch | |
| CN201351687Y (en) | Resilient gear wheel coupling device | |
| CN2040565U (en) | Elestic gear | |
| CN101959706B (en) | Drive for a hybrid vehicle and clutch with release mechanism | |
| CN206513799U (en) | One kind reinforces belt pulley | |
| CN205047624U (en) | Bent axle bolt gasket construction | |
| CN100389272C (en) | Buffer shock-absorbing heavy-duty safety clutch | |
| CN201568524U (en) | Engine crankshaft torsional vibration damper | |
| CN204572194U (en) | The power output structure of crankshaft front end | |
| CN204592052U (en) | High pulling torque reed-type compensates elastic coupling flexible coupling entirely | |
| CN202579698U (en) | Elastic coupling |
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: 20081008 Termination date: 20121221 |