CN103363063A - Shock absorption gear assembly - Google Patents
Shock absorption gear assembly Download PDFInfo
- Publication number
- CN103363063A CN103363063A CN2013103274598A CN201310327459A CN103363063A CN 103363063 A CN103363063 A CN 103363063A CN 2013103274598 A CN2013103274598 A CN 2013103274598A CN 201310327459 A CN201310327459 A CN 201310327459A CN 103363063 A CN103363063 A CN 103363063A
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- gear
- damper
- mounting hole
- tooth
- driving pin
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Abstract
The invention provides a shock absorption gear assembly, which comprises a first gear and a second gear with the identical tooth profile parameters, wherein the first gear is a driving gear, the second gear is coaxially arranged at the outer side of the first gear through a connecting element, one end of the connecting element matched with the second gear is provided with a rubber coating, and in the initial positions of the first gear and the second gear, the gear tooth symmetric centerline of the first gear and the gear tooth symmetric centerline of the second gear form an acute angle alpha, so a crankshaft gear of an output torque can be enabled to firstly drive the first gear to rotate, after the first gear rotates for the acute angle alpha, the tooth profiles of the first gear and the second gear are coincident, and in the process, the rubber coating can effectively buffer the impact force during the gear contact, so the vibration and the noise during the gear transmission are reduced, the gear abrasion is retarded, the service life of the gear is prolonged, and the engine quality is improved.
Description
Technical field
The present invention relates to a kind of damper gear assembly, belong to technical field of automobile parts.
Background technique
Gear is the colyliform mechanical parts that rely on the engagement transmitting torque of tooth.Gear by with other dentation mechanical parts (such as another gear, tooth bar, worm screw) transmission, can realize changing rotating speed and moment of torsion, change moving direction and change the functions such as forms of motion.Since the advantages such as transmission efficiency is high, velocity ratio is accurate, power range is large, gear mechanism extensive use in industrial products, and its design and manufacture level directly have influence on the quality of industrial products.
The noise of engine gear transmission is one of main source of engine noise.At present, gear generally adopts steel to process, the moment of torsion of motor substantially all transmits by train of gearings, gear is when engagement, because tooth has certain gap (being the back lash) between tooth, two gears will produce impact when contact, all made by steel owing to the two again, particularly when engine speed changes, this impact can produce very large vibration and noise, thereby cause the wearing and tearing of engine noise rising and gear component, shorten the life-span of motor, the existing deficiency of prior art that Here it is.
Summary of the invention
The technical problem to be solved in the present invention is exactly for the existing deficiency of prior art, and provides a kind of noise little, the damper gear assembly that the life-span is long.
This programme is achieved by the following technical measures: this damper gear assembly comprises gear I and the gear II that tooth profile parameter is identical, described gear I is driving gear, one end of gear I is provided with the location shoulder, it is upper and coaxial with the gear I that the gear II is installed in this location shoulder, the gear I is connected driving pin with the gear II and is connected, and the driving pin arranged outside has the buffer layer that cooperates with the gear II; In the initial position of gear I and gear II, the symmetrical center line of the gear teeth of the symmetrical center line of the gear teeth of gear I and gear II acutangulates α.
The span of above-mentioned sharp angle α is 0.2 °-1.5 °, and sharp angle α remains in this angular range, both can reach the effect of buffer gear cold I and gear II contact impact power, is unlikely to again to affect because sharp angle α is excessive the synchronism of gear assembly operation.
In order to reach better using effect, preferred sharp angle α=0.5 °.
The height of above-mentioned location shoulder equates with hub length and/or the facewidth of gear II, makes the gear I concordant with the end face of gear II, to increase the area of contact of gear I and gear II, to increase as much as possible the area of contact of buffer layer and gear II, guarantees cushioning effect.
Evenly be provided with mounting hole I a plurality of and the driving pin coupling on the wheel hub of said gear I.
Be provided with the mounting hole II with mounting hole I quantity and location matches on the wheel hub of said gear II.
In order to reach the purpose of better bumper and absorbing shock, and adapt to the environment that high temperature, machine oil soak, above-mentioned buffer layer adopts rubber coating, the vibration that rubber coating produces in the time of can fully absorbing gear transmission.
Above-mentioned buffer layer sulfuration is installed in one section driving pin outside in the mounting hole II, to guarantee the installation strength of buffer layer, makes it have higher shock-resistant ability.
The beneficial effect of this programme can be learnt according to the narration to such scheme, in this damper gear assembly, one end of gear I is provided with the location shoulder, it is upper and coaxial with the gear I that the gear II is installed in this location shoulder, the gear I is connected driving pin with the gear II and is connected, and the driving pin arranged outside has the buffer layer that cooperates with the gear II, can realize easily that by this structural type the gear I rotates sharp angle α relative to the gear II, can keep synchronous rotation after both profiles of tooth are overlapped.In the initial position of gear I and gear II, the symmetrical center line of the gear teeth of the symmetrical center line of the gear teeth of gear I and gear II acutangulates α, can guarantee so the at first actuation gear I rotation of crankshaft gear of output torque, after the gear I is rotated sharp angle α, the profile of tooth of gear I and gear II overlaps, in this process, buffer layer is the impact force in buffer gear cold when contact effectively, thereby the vibration when having reduced gear transmission and noise, the wearing and tearing of gear have been slowed down, prolonged the working life of gear, engine quality is improved.This shows that the present invention compared with prior art has outstanding substantive distinguishing features and significant progressive, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is A-A sectional view among Fig. 1.
Fig. 3 is P section enlarged view among Fig. 1.
Among the figure, 1 is the gear II, and 2 is driving pin, and 3 is the mounting hole II, and 4 is buffer layer, and 5 are the location shoulder, and 6 is the gear I, and 7 is the mounting hole I, and 8 is sharp angle α.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
The symmetrical center line of the gear teeth: the ray that refers to the line place between the tooth top mid point of the center of rotation of gear and the gear teeth.
A kind of damper gear assembly, as shown in the figure, it comprises gear I 6 that tooth profile parameter is identical and gear II 1(namely: after gear I 6 and the 1 overlapping placement of gear II, both overlap fully), described gear I 6 is driving gear, and an end of gear I 6 is provided with location shoulder 5, and gear II 1 is installed on this location shoulder 5 and with gear I 6 and keeps coaxial, the height of location shoulder 5 equates with hub length and/or the facewidth of gear II 1, guarantees that namely gear II 1 is concordant with the end face of gear I 6.
Evenly be provided with a plurality of (such as three) and the mounting hole I 7 that driving pin 2 mates on the wheel hub of gear I 6, be provided with the mounting hole II 3 with mounting hole I 7 quantity and location matches on the wheel hub of gear II 1.Driving pin 2 penetrating mounting holes I 7 and mounting hole II 3, gear I 6 and gear II 1 are connected and fixed by driving pin 2.Driving pin 2 arranged outside have the buffer layer 4 that cooperates with gear II 1, and buffer layer 4 sulfurations are installed in one section driving pin 2 outside in the mounting hole II 3, this buffer layer 4 adopts rubber coating, and the effect of buffering is played in the vibration that produces when fully absorbing gear transmission by rubber coating.
In the initial position of gear I 6 and gear II 1, the symmetrical center line of the gear teeth of the symmetrical center line of the gear teeth of gear I 6 and gear II 1 acutangulates α 8, and the span of sharp angle α 8 is 0.2 °-1.5 °, preferred sharp angle α=0.5 °.Sharp angle α 8 can buffer gear cold impact force during contact, thereby the vibration when having reduced gear transmission and noise have slowed down gear wear, and the quality of motor is improved.
This damper gear assembly for the rotation of all the other component of motor provides power, specifically, transmits crankshaft gear outputting powers to all the other component of motor between engine crankshaft gear and other gears.During engine rotation, the crankshaft gear of output torque at first contacts with the gear I 6 of this assembly, and gear I 6 acts on the rubber coating in the mounting hole II 3, after gear I 6 is rotated sharp angle α 8, the profile of tooth of gear I 6 and gear II 1 overlaps, and whole gear assembly reaches the simultaneously state of operation at this moment.In this process, the vibration of rubber coating during to gear transmission when engine crankshaft gear, gear I 6 and 1 transmission of gear II (that is :) has damping function, the vibration that produces in the time of effectively absorbing the gear engagement, and the propagation of vibration played the effect of damping, the impact force that produces during the buffer gear cold contact, thereby the vibration when having reduced gear transmission and noise have slowed down gear wear, and engine quality is improved.
Can pass through or adopt existing techniques in realizing without the technical characteristics of describing among the present invention; do not repeat them here; certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention also is not limited in above-mentioned mode of execution; the variation that those of ordinary skill in the art makes in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (8)
1. damper gear assembly, it is characterized in that: it comprises gear I and the gear II that tooth profile parameter is identical, described gear I is driving gear, one end of gear I is provided with the location shoulder, it is upper and coaxial with the gear I that the gear II is installed in this location shoulder, the gear I is connected driving pin with the gear II and is connected, and the driving pin arranged outside has the buffer layer that cooperates with the gear II; In the initial position of gear I and gear II, the symmetrical center line of the gear teeth of the symmetrical center line of the gear teeth of gear I and gear II acutangulates α.
2. damper gear assembly according to claim 1, it is characterized in that: the span of described sharp angle α is 0.2 °-1.5 °.
3. damper gear assembly according to claim 2 is characterized in that: described sharp angle α=0.5 °.
4. according to claim 1,2 or 3 described damper gear assemblies, it is characterized in that: the height of described location shoulder equates with hub length and/or the facewidth of gear II.
5. according to claim 1,2 or 3 described damper gear assemblies, it is characterized in that: the mounting hole I that evenly are provided with a plurality of and driving pin coupling on the wheel hub of described gear I.
6. damper gear assembly according to claim 5 is characterized in that: be provided with the mounting hole II with mounting hole I quantity and location matches on the wheel hub of described gear II.
7. according to claim 1,2 or 3 described damper gear assemblies, it is characterized in that: described buffer layer is rubber coating.
8. damper gear assembly according to claim 7 is characterized in that: described buffer layer sulfuration is installed in one section driving pin outside in the mounting hole II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103274598A CN103363063A (en) | 2013-07-31 | 2013-07-31 | Shock absorption gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103274598A CN103363063A (en) | 2013-07-31 | 2013-07-31 | Shock absorption gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363063A true CN103363063A (en) | 2013-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103274598A Pending CN103363063A (en) | 2013-07-31 | 2013-07-31 | Shock absorption gear assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103363063A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836151A (en) * | 2014-03-14 | 2014-06-04 | 陕西法士特齿轮有限责任公司 | Flexible shock-absorption and noise-reduction gear |
| CN113062960A (en) * | 2021-02-05 | 2021-07-02 | 浙江吉利控股集团有限公司 | Duplex vibration reduction gear, engine balance shaft gear structure and speed reducer gear structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB751118A (en) * | 1953-02-12 | 1956-06-27 | Ringfeder Gmbh | A coupling for rotatable members |
| US4660432A (en) * | 1984-07-05 | 1987-04-28 | James Damas | Device for automatically taking up backlash in gear transmission systems |
| DE10058482A1 (en) * | 2000-11-24 | 2002-06-20 | Man Nutzfahrzeuge Ag | Toothed wheel for damping rotary impulses in gearboxes has two axially aligned wheel parts connected together through rigid bolt and elastomer to provide inner damping |
| CN2520435Y (en) * | 2001-12-25 | 2002-11-13 | 大连创新齿轮箱制造有限公司 | Backlash-less engaging gear |
| CN1934375A (en) * | 2004-03-22 | 2007-03-21 | 米巴辛特奥地利股份有限公司 | Toothed wheel for a play-free spur gear set |
| CN101907161A (en) * | 2010-07-13 | 2010-12-08 | 襄樊市博亚机械有限公司 | Automatic gear clearance elimination mechanism |
| CN202992106U (en) * | 2012-12-26 | 2013-06-12 | 潍柴动力股份有限公司 | Gear and engine using same |
| CN203363065U (en) * | 2013-07-31 | 2013-12-25 | 中国重汽集团济南动力有限公司 | Shock-absorbing gear assembly |
-
2013
- 2013-07-31 CN CN2013103274598A patent/CN103363063A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB751118A (en) * | 1953-02-12 | 1956-06-27 | Ringfeder Gmbh | A coupling for rotatable members |
| US4660432A (en) * | 1984-07-05 | 1987-04-28 | James Damas | Device for automatically taking up backlash in gear transmission systems |
| DE10058482A1 (en) * | 2000-11-24 | 2002-06-20 | Man Nutzfahrzeuge Ag | Toothed wheel for damping rotary impulses in gearboxes has two axially aligned wheel parts connected together through rigid bolt and elastomer to provide inner damping |
| CN2520435Y (en) * | 2001-12-25 | 2002-11-13 | 大连创新齿轮箱制造有限公司 | Backlash-less engaging gear |
| CN1934375A (en) * | 2004-03-22 | 2007-03-21 | 米巴辛特奥地利股份有限公司 | Toothed wheel for a play-free spur gear set |
| CN101907161A (en) * | 2010-07-13 | 2010-12-08 | 襄樊市博亚机械有限公司 | Automatic gear clearance elimination mechanism |
| CN202992106U (en) * | 2012-12-26 | 2013-06-12 | 潍柴动力股份有限公司 | Gear and engine using same |
| CN203363065U (en) * | 2013-07-31 | 2013-12-25 | 中国重汽集团济南动力有限公司 | Shock-absorbing gear assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836151A (en) * | 2014-03-14 | 2014-06-04 | 陕西法士特齿轮有限责任公司 | Flexible shock-absorption and noise-reduction gear |
| CN113062960A (en) * | 2021-02-05 | 2021-07-02 | 浙江吉利控股集团有限公司 | Duplex vibration reduction gear, engine balance shaft gear structure and speed reducer gear structure |
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Application publication date: 20131023 |