CN206145094U - Drive gear - Google Patents
Drive gear Download PDFInfo
- Publication number
- CN206145094U CN206145094U CN201621172808.9U CN201621172808U CN206145094U CN 206145094 U CN206145094 U CN 206145094U CN 201621172808 U CN201621172808 U CN 201621172808U CN 206145094 U CN206145094 U CN 206145094U
- Authority
- CN
- China
- Prior art keywords
- drive gear
- ring body
- gear
- centerbody
- gear ring
- 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.)
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- Gears, Cams (AREA)
- Retarders (AREA)
Abstract
The utility model relates to an auto parts field is a drive gear particularly. A drive gear, drive gear lays balanced epaxial, and balanced epaxial being equipped with is used for the pivoted balancing piece, drive gear includes gear revolve's centerbody, is equipped with to be used for driven ring gear body outside drive gear, and the clearance department between the centerbody and the ring gear body packs has the absorbing of being used for damping rubber. The utility model is not only simple in structure, and it is practical convenient, damping vibration attenuation decoupling zero gear type wheel can lower the dynamic driving torque of balanced axle more than 50%, improves the NVH performance, and the noise can reduce by 1 to 3 decibel, improves the durability and the reliability of system.
Description
Technical field
The utility model is related to auto parts field, specifically a kind of drive gear.
Background technology
When riding, engine can produce considerable degree of vibration problem to general locomotive, therefore locomotive can set up balance shaft structure,
A drive gear is arranged with bent axle, the identical number of teeth of tool is driven and is sheathed on the balance shaft drive gear rotation of balance shaft, passed through
Balance shaft rotation after counterweight, can offset the imbalance produced by part engine operating, and reduce the purpose of engine vibration.
Traditional driving gear drives be rigid gear to rigid gear because being to be rigidly connected, in the high rotating speed of engine
Under operating mode, driving torque may be up to 200N.m between gear, and vibrating noise is big during whole system operates, system it is durable
Property, poor reliability.
So a kind of new damper gear is present needs.
Utility model content
The purpose of this utility model is to provide a kind of drive gear with cushioning effect.
To realize such purpose, the utility model provides a kind of drive gear, and the drive gear is placed in balance
On axle, balance shaft is provided with the balance weight for rotating, and balance weight is sector, and fan-shaped balance weight barycenter is partial to balance shaft side,
The drive gear includes the centerbody for pinion rotation, the gear ring body for transmission is provided with the outside of drive gear, in
Gap location between heart body and gear ring body is filled with the elastomer for damping.
The elastomer is damping rubber.
The gear ring body outside is provided with the rubber wheel cingulum being adapted with the gear teeth in gear ring body.
The drive gear is provided with least one through hole, and drive gear barycenter is partial to the barycenter of balance weight in balance shaft
It is identical.
The gear ring body inner side is provided with the dovetail groove of more than 1.
The centerbody outside is provided with the trapezoidal projection of more than 1.
Gear ring body is connected with the snapping of trapezoidal projection by dovetail groove with centerbody.
The dovetail groove is interference fit with trapezoidal projection.
The dovetail groove is evenly distributed on gear ring body inner side, arranges in the trapezoidal projection that centerbody outside is arranged and gear ring body
Dovetail groove be adapted.
Beneficial outcomes of the present utility model：
The utility model is not only simple in structure, and practical and convenient, and damping vibration attenuation decoupling type gear can lower more than 50%
Balance shaft dynamic driving moment of torsion, improve NVH performances, noise can reduce by 1 to 3 decibel, improve the durability and reliability of system.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model optimization.
Fig. 3 is gear teeth partial enlarged drawing of the present utility model.
Fig. 4 is installation diagram of the present utility model.
1st, gear ring body, 2, centerbody, 3, damping rubber, 4, trapezoidal projection, 5, dovetail groove, 6, rubber wheel cingulum, 7, through hole,
8th, balance shaft, 9, balance weight.
Specific embodiment
A kind of drive gear, drive gear is placed in balance shaft 8, and balance shaft 8 is provided with the balance weight 9 for rotating,
Balance weight 9 is sector, and the barycenter of fan-shaped balance weight 9 deflection balance shaft 8 side, drive gear includes the centerbody for pinion rotation
2, the gear ring body 1 for transmission is provided with the outside of drive gear, the gap location between centerbody 2 and gear ring body 1 is filled with use
In the damping rubber 3 of damping.
As preferred, the rubber gear teeth being adapted with the gear teeth in gear ring body 1 are provided with the outside of gear ring body 1 in the utility model
Band 6, rubber wheel cingulum 6 has cushioning effect, is conducive to extending the service life of drive gear.
Used as preferred, drive gear is provided with least one through hole 7, drive gear barycenter and balance in the utility model
On axle 8 balance weight 9 barycenter deflection it is identical, in balance shaft 8 have balance weight 9, balance shaft 8 be equipped with eccentric balancing blocks 9 and with
The axle of crankshaft-synchronous rotation, using the vibrations power produced by eccentric balancing blocks 9, makes engine obtain good balance, drop
The vibration of low engine, balance weight 9 has that the semi circular surface of through hole 7 is relative to be set in balance shaft 8 with drive gear in the utility model
Put, make drive gear barycenter identical with the barycenter deflection of balance weight 9, drive gear is provided with through hole 7 so that drive gear barycenter
Skew, such drive gear can also participate in balanced action, can reduce the quality of balance weight 9, so as to reduce whole device
Quality, we are provided with least one through hole 7 by the semi circular surface in the design on drive gear relative to balance weight 9, through hole 7
Number can be arranged as required to difference, typically adopt round tube hole 7, can significantly mitigate the quality of drive gear, so as to mitigate
The quality of whole device, reduces engine luggine, reduces the noise of engine, increasing service life of engine.
As preferred, the dovetail groove 5 of more than 1 is provided with the utility model on the inside of gear ring body 1, the outside of centerbody 2 sets
There is the trapezoidal projection 4 of more than 1, gear ring body 1 is connected with the snapping of trapezoidal projection 4 by dovetail groove 5 with centerbody 2, trapezoidal
Groove 5 is evenly distributed on the inner side of gear ring body 1, the trapezoidal projection 4 of the outside of centerbody 2 setting and the phase of dovetail groove 5 of setting in gear ring body 1
Adaptation, dovetail groove 5 is interference fit with trapezoidal projection 4, and such setting can be used to realize the company that centerbody 2 educates dovetail groove 5
Connect, and driving wheel quality is mitigated, also allow for filling damping rubber in junction.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing the protection domain created still in the utility model.
Claims (9)
1. a kind of drive gear, the drive gear is placed in balance shaft (8), and balance shaft (8) is provided with flat for what is rotated
Weighing apparatus block (9), balance weight (9) is sector, fan-shaped balance weight (9) barycenter deflection balance shaft side, it is characterised in that the sliding tooth
Wheel includes the centerbody (2) for pinion rotation, the gear ring body (1) for transmission is provided with the outside of drive gear, in centerbody
(2) gap location and between gear ring body (1) is filled with the elastomer for damping.
2. a kind of drive gear according to claim 1, it is characterised in that the elastomer is damping rubber (3).
3. a kind of drive gear according to claim 1, it is characterised in that the gear ring body outside is provided with and gear ring body
(1) the rubber wheel cingulum (6) that the gear teeth are adapted on.
4. a kind of drive gear according to claim 1, it is characterised in that the drive gear is provided with least one and leads to
Hole (7), drive gear barycenter is identical with the barycenter deflection of balance weight (9) in balance shaft (8).
5. a kind of drive gear according to claim 1, it is characterised in that gear ring body (1) inner side is provided with more than 1
Dovetail groove (5).
6. a kind of drive gear according to claim 1, it is characterised in that centerbody (2) outside is provided with more than 1
Trapezoidal projection (4).
7. a kind of drive gear according to claim 1, it is characterised in that gear ring body is convex with trapezoidal by dovetail groove (5)
The snapping of block (4) is connected with centerbody.
8. a kind of drive gear according to claim 5, it is characterised in that the dovetail groove (5) is with trapezoidal projection (4)
Interference fit.
9. a kind of drive gear according to claim 5, it is characterised in that the dovetail groove (5) is evenly distributed on gear ring
Body (1) inner side, the trapezoidal projection (4) that centerbody outside is arranged is adapted with the dovetail groove (5) arranged in gear ring body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172808.9U CN206145094U (en) | 2016-10-26 | 2016-10-26 | Drive gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172808.9U CN206145094U (en) | 2016-10-26 | 2016-10-26 | Drive gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206145094U true CN206145094U (en) | 2017-05-03 |
Family
ID=58623098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621172808.9U Active CN206145094U (en) | 2016-10-26 | 2016-10-26 | Drive gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206145094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11041435B2 (en) | 2017-09-21 | 2021-06-22 | Ford Global Technologies, Llc | Counterbalance gear for an engine |
-
2016
- 2016-10-26 CN CN201621172808.9U patent/CN206145094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11041435B2 (en) | 2017-09-21 | 2021-06-22 | Ford Global Technologies, Llc | Counterbalance gear for an engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |