CN203363065U - Shock-absorbing gear assembly - Google Patents
Shock-absorbing gear assembly Download PDFInfo
- Publication number
- CN203363065U CN203363065U CN 201320462410 CN201320462410U CN203363065U CN 203363065 U CN203363065 U CN 203363065U CN 201320462410 CN201320462410 CN 201320462410 CN 201320462410 U CN201320462410 U CN 201320462410U CN 203363065 U CN203363065 U CN 203363065U
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- CN
- China
- Prior art keywords
- gear
- damper
- mounting hole
- driving pin
- buffer layer
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Abstract
The utility model provides a shock-absorbing gear assembly which comprises a gear I and a gear II, wherein the gear I and the gear II are same in tooth profile parameters, the gear I is a driving gear, the gear II is coaxially arranged on the outer side of the gear I through a connecting component, the outer side of one end of the connecting component, cooperated with the gear II, is provided with a rubber coating, and in the initial positions of the gear I and the gear II, an acute angle alpha is formed between the gear teeth symmetrical centerline of the gear I and the gear teeth symmetrical centerline of the gear II, so as to ensure that a crankshaft gear outputting a torque drives the gear I to rotate firstly, and after the gear I rotates by the acute angle alpha, the tooth profiles of the gear I and the gear II are coincided; in the process, the rubber coating can effectively buffer an impact force in the process of gear contact, thereby reducing the vibration and noise in the process of gear rotating, reducing the abrasion of the gears, prolonging the service lives of the gears, and improving the quality of an engine.
Description
Technical field
The utility model relates to a kind of damper gear assembly, belongs 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 (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.Due to advantages such as transmission efficiency are high, velocity ratio is accurate, power range is large, gear mechanism extensive use in industrial products, 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, certain gap (being back lash) is arranged between tooth due to tooth, two gears will produce impact when contact, again because the two is all made by steel, 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 problems to be solved in the utility model, be exactly for the existing deficiency of prior art, and provide 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 arranged on this location shoulder, the gear I is connected by driving pin with the gear II, and the driving pin arranged outside has the buffer layer coordinated 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 arranged on 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 arranged on this location shoulder, the gear I is connected by driving pin with the gear II, and the driving pin arranged outside has the buffer layer coordinated with the gear II, can realize easily that by this structural type the gear I rotates sharp angle α relative to the gear II, after being overlapped, both profiles of tooth can keep synchronously rotation.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 while having reduced gear transmission and noise, the wearing and tearing of gear have been slowed down, extended the working life of gear, engine quality is improved.As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model embodiment.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is P section enlarged view in Fig. 1.
In 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 is 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 comprise gear I 6 that tooth profile parameter is identical and gear II 1(: by after gear I 6 and the overlapping placement of gear II 1, 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 arranged 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 gear II 1 is concordant with the end face of gear I 6.
Evenly be provided with a plurality of (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 coordinated with gear II 1, and buffer layer 4 sulfurations are arranged on one section driving pin 2 outside in mounting hole II 3, this buffer layer 4 adopts rubber coating, and the vibration produced while by rubber coating, fully absorbing gear transmission, play the effect of buffering.
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 while having reduced gear transmission and noise have slowed down gear wear, and the quality of motor is improved.
This damper gear assembly, between engine crankshaft gear and other gears, 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.During engine rotation, at first the crankshaft gear of output torque contacts with the gear I 6 of this assembly, and gear I 6 acts on the rubber coating in 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 now reaches the state of operation simultaneously.In this process, the vibration of rubber coating during to gear transmission when 1 transmission of gear II (that is: engine crankshaft gear, gear I 6 and) has damping function, the vibration produced in the time of effectively absorbing the gear engagement, and the propagation of vibration is played to the effect of damping, the impact force produced during the buffer gear cold contact, thereby the vibration while having reduced gear transmission and noise, slowed down gear wear, engine quality is improved.
Can pass through or adopt existing techniques in realizing without the technical characteristics of describing in the utility model; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model 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 utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (8)
1. a 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 arranged on this location shoulder, the gear I is connected by driving pin with the gear II, and the driving pin arranged outside has the buffer layer coordinated 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: evenly be provided with mounting hole I a plurality of and the 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 arranged on one section driving pin outside in the mounting hole II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320462410 CN203363065U (en) | 2013-07-31 | 2013-07-31 | Shock-absorbing gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320462410 CN203363065U (en) | 2013-07-31 | 2013-07-31 | Shock-absorbing gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363065U true CN203363065U (en) | 2013-12-25 |
Family
ID=49810834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320462410 Expired - Lifetime CN203363065U (en) | 2013-07-31 | 2013-07-31 | Shock-absorbing gear assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363063A (en) * | 2013-07-31 | 2013-10-23 | 中国重汽集团济南动力有限公司 | Shock absorption gear assembly |
-
2013
- 2013-07-31 CN CN 201320462410 patent/CN203363065U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363063A (en) * | 2013-07-31 | 2013-10-23 | 中国重汽集团济南动力有限公司 | Shock absorption gear assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |