CN204239719U - A kind of gearbox gear engagement pre-pressing structure - Google Patents
A kind of gearbox gear engagement pre-pressing structure Download PDFInfo
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- CN204239719U CN204239719U CN201420725059.2U CN201420725059U CN204239719U CN 204239719 U CN204239719 U CN 204239719U CN 201420725059 U CN201420725059 U CN 201420725059U CN 204239719 U CN204239719 U CN 204239719U
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- gear
- constant mesh
- pretension
- fluted disc
- mesh gear
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- 230000013011 mating Effects 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 201000007094 prostatitis Diseases 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a kind of gearbox gear engagement pre-pressing structure, comprise constant mesh gear, gear shaft and pad, gear shaft through constant mesh gear axle center and with constant mesh gear by being connected with a joggle; The side axial surface of constant mesh gear is provided with first ring connected in star and the second annular groove; First ring connected in star is provided with fixed hole; Pretension fluted disc, the preloading spring be connected with pretension fluted disc and fixing pin is provided with between constant mesh gear and pad; Constant mesh gear is provided with the axial surface of first ring connected in star and pretension fluted disc fits; Fixing pin is connected with constant mesh gear through pretension fluted disc.Gearbox gear engagement pre-pressing structure of the present utility model, pretension fluted disc and preloading spring is added in constant mesh gear outer end, this pre-pressing structure eliminates the back lash of constant mesh gear, effectively reduce because gearbox vibrates the noise making to produce because of fluctuating stress between gear, the riding comfort of lifting vehicle.
Description
Technical field
The utility model relates to automobile gearbox technical field, is specifically related to a kind of gearbox gear engagement pre-pressing structure.
Background technique
Transmission assembly comprises gearbox one axle, jack shaft and gear, output shaft, driving gear, wherein jack shaft and gear thereof are fixed on jack shaft all the time, driving gear empty set is on output shaft, gear on itself and jack shaft engages each other, constant mesh gear is positioned at gearbox front end, is fixed in respectively on gearbox one axle and jack shaft.Engine power is input on an axle by clutch driven plate, be delivered on jack shaft and gear thereof by constant mesh gear again, by the gear shift mechanism of gearbox, make some gears of driving gear and output shaft affixed, thus power exports from the gear train of this gear.
In actual use, the vibration passing route of motor is identical with power transmission line, and the vibration therefore being reduced motor by gearbox is carried out optimal design to realize on gearbox dynamic transfer route with regard to needs.In the power transmission line of gearbox, no matter under which gear or neutral state, constant mesh gear is all the time in the route of transmission of power, and be positioned at the prostatitis of transfer route, because there is wave phenomenon in the power that motor exports, by still having a small amount of vibration passing after the vibration damping of clutch on gearbox, and the back lash of constant mesh gear can produce noise abnormal sound under above-mentioned Vibration Condition, be therefore necessary to be optimized the back lash of constant mesh gear to solve gearbox vibrating noise problem.
Model utility content
The purpose of this utility model is to provide a kind of gearbox gear engagement pre-pressing structure, on the basis ensureing constant mesh gear bulk strength, by designing new pre-pressing structure, to eliminate the back lash of constant mesh gear, thus reach the object reducing gearbox noise, reduce idling abnormal sound, promote riding comfort.
For achieving the above object, the utility model provides following technological scheme:
A kind of gearbox gear engagement pre-pressing structure, comprise constant mesh gear, gear shaft and pad, described gear shaft passes the axle center of described constant mesh gear and engages with described constant mesh gear; The side axial surface of described constant mesh gear is provided with first ring connected in star and the second annular groove; Described first ring connected in star is provided with fixed hole; Pretension fluted disc, the preloading spring be connected with described pretension fluted disc and fixing pin is provided with between described constant mesh gear and described pad; Described constant mesh gear is provided with the axial surface of described first ring connected in star and described pretension fluted disc fits; Described fixing pin is connected with described constant mesh gear through described pretension fluted disc.
Preferably, the surface of described pretension fluted disc is provided with positioning hole and prefastened stator around between the homogeneous phase of axle center.
Preferably, the axle center of described pretension fluted disc is provided with the conical flange towards described constant mesh gear, described conical flange and described second annular groove in mating connection.
Preferably, described positioning hole is at least three, and described fixing pin is through described positioning hole and described fixed hole interference fit.
Preferably, described positioning hole is waist shaped hole or slotted eye.
Preferably, described prefastened stator is at least three, and one end of described preloading spring is fixedly connected with described prefastened stator.
Preferably, described preloading spring is at least three, and it is fixed by described fixing pin away from the one end of holding that is connected with described prefastened stator.
Preferably, described preloading spring and described first ring connected in star in mating connection.
Preferably, the tooth on described pretension fluted disc and the tooth on described constant mesh gear are crisscross arranged.
Preferably, described pretension fluted disc is punching press integrated formed structure.
The beneficial effects of the utility model are:
Gearbox gear engagement pre-pressing structure of the present utility model, on the basis ensureing constant mesh gear bulk strength, by increasing pretension fluted disc and preloading spring in constant mesh gear outer end, on the axial surface of constant mesh gear, arrange first ring connected in star and the second annular groove to coordinate the installation of pretension fluted disc and preloading spring, being then connected with constant mesh gear by pretension fluted disc by fixing pin is an entirety simultaneously.This pre-pressing structure eliminates the back lash of constant mesh gear, make the connection of other gears in constant mesh gear and gearbox tightr, the ability of reply gearbox vibration improves, while increase gearbox working life, also effectively reduce because gearbox vibration makes the noise that produces because of fluctuating stress between gear.In addition, gearbox noise reduces the idling abnormal sound that can also reduce vehicle, the riding comfort of lifting vehicle.
Accompanying drawing explanation
Next will be described in further detail specific embodiment of the utility model by reference to the accompanying drawings, wherein:
Fig. 1 is the gears meshing pre-pressing structure explosive view of the utility model embodiment;
Fig. 2 is the constant mesh gear structural drawing of the utility model embodiment;
Fig. 3 is the pretension fluted disc structure figure of the utility model embodiment;
Fig. 4 is the assembling partial enlarged drawing of the utility model embodiment;
Mark in upper figure:
1, constant mesh gear 11, first ring connected in star 12, second annular groove
13, fixed hole 2, pretension fluted disc 21, positioning hole
22, prefastened stator 23, conical flange 3, preloading spring
4, fixing pin
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
As shown in Figure 1, gearbox gear of the present utility model engagement pre-pressing structure, comprises constant mesh gear 1, gear shaft and pad, gear shaft through constant mesh gear 1 axle center and with constant mesh gear 1 by being connected with a joggle; The side axial surface of constant mesh gear 1 is provided with first ring connected in star 11 and the second annular groove 12; First ring connected in star 11 is provided with fixed hole 13; Pretension fluted disc 2, the preloading spring 3 be connected with pretension fluted disc 2 and fixing pin 4 is provided with between constant mesh gear 1 and pad; Constant mesh gear 1 is provided with the axial surface of first ring connected in star 11 and pretension fluted disc 2 fits; Fixing pin 4 is connected with constant mesh gear 1 through pretension fluted disc 2.This gearbox gear engagement pre-pressing structure, on the basis ensureing constant mesh gear 1 bulk strength, by increasing pretension fluted disc 2 and preloading spring 3 in constant mesh gear 1 outer end, on the axial surface of constant mesh gear 1, arrange first ring connected in star 11 and the second annular groove 12 to coordinate the installation of pretension fluted disc 2 and preloading spring 3, being then connected with constant mesh gear 1 by pretension fluted disc 2 by fixing pin 4 is an entirety simultaneously.This pre-pressing structure eliminates the back lash of constant mesh gear 1, make constant mesh gear 1 tightr with the connection of other gears in gearbox, the ability of reply gearbox vibration improves, while increase gearbox working life, also effectively reduce because gearbox vibration makes the noise that produces because of fluctuating stress between gear.In addition, gearbox noise reduces the idling abnormal sound that can also reduce vehicle, the riding comfort of lifting vehicle.
As shown in Figure 3, the surface of pretension fluted disc 2 is provided with positioning hole 21 and prefastened stator 22 along between the homogeneous phase of axle center; And the axle center of pretension fluted disc 2 is provided with the conical flange 23 towards constant mesh gear 1.Positioning hole 21 is connected for pretension fluted disc 2 is carried out contraposition with constant mesh gear 1, as can be seen from Figure 1, positioning hole 21 has three, is evenly arranged outside the axle center of pretension fluted disc 2, and fixing pin 4 is connected by interference fit with the fixed hole 13 on constant mesh gear 1 through positioning hole 21.The profile of positioning hole 21 can be waist shaped hole or slotted eye, preferred waist-shaped hole in the utility model, not only be convenient to the installation of locating stud 4, and can after pretension fluted disc 2 and constant mesh gear 1 have assembled, pretension fluted disc 2 can rotate in the angle of regulation, in order to adjust the elasticity of the relative constant mesh gear 1 of pretension fluted disc 2.
In addition, it can also be seen that from Fig. 3, prefastened stator 22 and preloading spring 3 also match with positioning hole 21 and are set to three, be evenly arranged, and prefastened stator 22 are arranged between positioning hole 21 outside the axle center of pretension fluted disc 2.One end of preloading spring 3 is connected by connecting and fixing with prefastened stator 22, and the other end of preloading spring 3 leans in the side of locating stud 4, is coordinated with the waist-shaped hole on positioning hole 21 by locating stud 4, can adjust the elasticity of pretension fluted disc 2.This assembly structure not only can compress pretension fluted disc 2 by the position relationship between adjustment pretension fluted disc 2 and constant mesh gear 1, preloading spring 3 can absorb the fluctuating stress brought when constant mesh gear 1 coordinates operate with other gears simultaneously, the characteristic of spring is utilized to be disperseed by fluctuating stress, thus make constant mesh gear produce noise reduction because of fluctuating stress, improve the riding comfort of vehicle.
Certainly, the quantity of above-mentioned positioning hole 21, prefastened stator 22 and preloading spring 3 can adjust according to the size of constant mesh gear 1, only need ensure between pretension fluted disc 2 and constant mesh gear 1, to keep necessary rate of tension, not limit in the utility model embodiment.
Can find out in fig. 2, constant mesh gear 1 is provided with first ring connected in star 11 and the second annular groove 12, wherein first ring connected in star 11 is mainly used in placing preloading spring 3, make preloading spring 3 after pre-pressing structure integral installation completes, can coordinate with pretension fluted disc 2 and carry out freely unclasping action.And the second annular groove 12 mainly coordinates with the conical flange 23 on pretension fluted disc 2, when pretension fluted disc 2 is installed on constant mesh gear 1, utilizes above conical flange 23 one circle flanging and on constant mesh gear 1 axle center to enclose translot and coordinate that to carry out clamping spacing to be fixed.Certainly, according to the structure difference of the constant mesh gear 1 that different gearbox uses, mounting type between constant mesh gear 1 with pretension fluted disc 2 also can be with bolts or related domain common method such as to weld, and do not limit in the utility model embodiment.
As shown in Figure 4, tooth on tooth on pretension fluted disc 2 and constant mesh gear 1 is crisscross arranged, after pretension fluted disc 2 and constant mesh gear 1 are mounted for one, because the tooth on the tooth on pretension fluted disc 2 and constant mesh gear 1 forms interleaved state, when constant mesh gear 1 is meshed with the engaging gear on an axle in gearbox, tooth on pretension fluted disc 2 can coincide with constant mesh gear 1 under the effect of engaging force, preloading spring 3 is utilized to bring the tension force of pretension fluted disc 2, pretension fluted disc 2 can have the pressure of a forward to act on the engaging gear of an axle all the time, can ensure that constant mesh gear 1 can effectively with reliably contact with the engaging gear on an axle like this, the back lash of engaging gear on constant mesh gear 1 and an axle is eliminated with this, ensure the reliability of constant mesh gear 1, simultaneously because pretension fluted disc 2 can eliminate back lash, engaging gear on constant mesh gear 1 and an axle can not be collided with each other because of vibration stress, vibration stress also can carry out disperseing and absorbing by the spring 3 simultaneously on pretension fluted disc 2, thus reduce the noise produced because of fluctuating between gear, reduce the abnormal sound that vehicle produces when idling, improve vehicle riding comfort.
As shown in Figure 3, pretension fluted disc 2 is punching press integrated formed structure, is conducive to the structure by simplifying pretension fluted disc 2, is convenient to processing and produces in enormous quantities, saving cost.
Gearbox gear engagement pre-pressing structure of the present utility model can be applied on automobile gearbox field, and other use the component of gears meshing when meeting installation conditions, and the utility model also can be used to improve gear engagement mechanism.
Although the utility model is described in conjunction with above embodiment, but the utility model is not limited to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present utility model and scope.
Claims (10)
1. a gearbox gear engagement pre-pressing structure, comprises constant mesh gear, gear shaft and pad, and described gear shaft passes the axle center of described constant mesh gear and engages with described constant mesh gear; It is characterized in that: the side axial surface of described constant mesh gear is provided with first ring connected in star and the second annular groove; Described first ring connected in star is provided with fixed hole;
Pretension fluted disc, the preloading spring be connected with described pretension fluted disc and fixing pin is provided with between described constant mesh gear and described pad; Described constant mesh gear is provided with the axial surface of described first ring connected in star and described pretension fluted disc fits; Described fixing pin is connected with described constant mesh gear through described pretension fluted disc.
2. gearbox gear engagement pre-pressing structure according to claim 1, it is characterized in that, the surface of described pretension fluted disc is provided with positioning hole and prefastened stator around between the homogeneous phase of axle center.
3. gearbox gear according to claim 2 engagement pre-pressing structure, it is characterized in that, the axle center of described pretension fluted disc is provided with the conical flange towards described constant mesh gear, described conical flange and described second annular groove in mating connection.
4. gearbox gear engagement pre-pressing structure according to claim 2, it is characterized in that, described positioning hole is at least three, and described fixing pin is through described positioning hole and described fixed hole interference fit.
5. gearbox gear engagement pre-pressing structure according to claim 4, it is characterized in that, described positioning hole is waist shaped hole or slotted eye.
6. gearbox gear engagement pre-pressing structure according to claim 2, it is characterized in that, described prefastened stator is at least three, and one end of described preloading spring is fixedly connected with described prefastened stator.
7. gearbox gear engagement pre-pressing structure according to claim 6, it is characterized in that, described preloading spring is at least three, and it is fixed by described fixing pin away from the one end of holding that is connected with described prefastened stator.
8. gearbox gear according to claim 7 engagement pre-pressing structure, is characterized in that, described preloading spring and described first ring connected in star in mating connection.
9. gearbox gear engagement pre-pressing structure according to claim 2, it is characterized in that, the tooth on described pretension fluted disc and the tooth on described constant mesh gear are crisscross arranged.
10. gearbox gear engagement pre-pressing structure according to claim 1, it is characterized in that, described pretension fluted disc is punching press integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725059.2U CN204239719U (en) | 2014-11-26 | 2014-11-26 | A kind of gearbox gear engagement pre-pressing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725059.2U CN204239719U (en) | 2014-11-26 | 2014-11-26 | A kind of gearbox gear engagement pre-pressing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239719U true CN204239719U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725059.2U Expired - Fee Related CN204239719U (en) | 2014-11-26 | 2014-11-26 | A kind of gearbox gear engagement pre-pressing structure |
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| Country | Link |
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| CN (1) | CN204239719U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358857A (en) * | 2014-11-26 | 2015-02-18 | 安徽江淮汽车股份有限公司 | Gear engagement pre-tightening structure of speed changing box |
| CN106051125A (en) * | 2016-06-27 | 2016-10-26 | 南通广兴气动设备有限公司 | Gapless coupling gear |
| TWI595176B (en) * | 2016-06-03 | 2017-08-11 | 鼎燦企業有限公司 | Transmission mechanism with zero-gap gear |
-
2014
- 2014-11-26 CN CN201420725059.2U patent/CN204239719U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358857A (en) * | 2014-11-26 | 2015-02-18 | 安徽江淮汽车股份有限公司 | Gear engagement pre-tightening structure of speed changing box |
| TWI595176B (en) * | 2016-06-03 | 2017-08-11 | 鼎燦企業有限公司 | Transmission mechanism with zero-gap gear |
| CN106051125A (en) * | 2016-06-27 | 2016-10-26 | 南通广兴气动设备有限公司 | Gapless coupling gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20191126 |