CN104358857A - Gear engagement pre-tightening structure of speed changing box - Google Patents
Gear engagement pre-tightening structure of speed changing box Download PDFInfo
- Publication number
- CN104358857A CN104358857A CN201410697044.4A CN201410697044A CN104358857A CN 104358857 A CN104358857 A CN 104358857A CN 201410697044 A CN201410697044 A CN 201410697044A CN 104358857 A CN104358857 A CN 104358857A
- Authority
- CN
- China
- Prior art keywords
- gear
- constant mesh
- pretension
- fluted disc
- pressing structure
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/18—Special devices for taking up backlash
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a gear engagement pre-tightening structure of a speed changing box. The gear engagement pre-tightening structure comprises a normally engaged gear, a gear shaft and a gasket, wherein the gear shaft penetrates through the axis of the normally engaged gear and is in engagement connection with the normally engaged gear; a first annular groove and a second annular groove are formed in the axial surface of one side of the normally engaged gear; a fixing hole is formed in the first groove; a pre-tightening tooth disk, pre-tightening springs connected with the pre-tightening tooth disk and fixing pins are arranged between the normally engaged gear and the gasket; the axial surface, which is provided with the first annular groove, of the normally engaged gear is attached to the pre-tightening tooth disk; the fixing pins penetrate through the pre-tightening tooth disk and are connected with the normally engaged gear. According to the gear engagement pre-tightening structure of the speed changing box, the pre-tightening tooth disk and the pre-tightening springs are additionally arranged at the outer end of the normally engaged gear; by the pre-tightening structure, an engagement clearance of the normally engaged gear is eliminated, noise, which is generated by fluctuation stress caused by vibration of the speed changing box, between gears is effectively reduced, and the sitting comfortableness of a vehicle is improved.
Description
Technical field
The present invention relates to automobile gearbox technical field, be 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.
Summary of the invention
The object of this invention 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 invention 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.
Beneficial effect of the present invention is:
Gearbox gear engagement pre-pressing structure of the present invention, 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 embodiments of the invention by reference to the accompanying drawings, wherein:
Fig. 1 is the gears meshing pre-pressing structure explosive view of the embodiment of the present invention;
Fig. 2 is the constant mesh gear structural drawing of the embodiment of the present invention;
Fig. 3 is the pretension fluted disc structure figure of the embodiment of the present invention;
Fig. 4 is the assembling partial enlarged drawing of the embodiment of the present invention;
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 embodiments of the invention, 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 present invention, and can not limitation of the present invention being interpreted as.
As shown in Figure 1, gearbox gear of the present invention 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 in the present invention waist-shaped hole, 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 embodiments of the present invention.
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, the structure of the constant mesh gear 1 used according to different gearbox is different, and the 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 embodiments of the present invention.
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 invention can be applied on automobile gearbox field, and other use the component of gears meshing when meeting installation conditions, and the present invention also can be used to improve gear engagement mechanism.
Although the present invention is described in conjunction with above embodiment, but the present invention 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 invention 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 |
|---|---|---|---|
| CN201410697044.4A CN104358857A (en) | 2014-11-26 | 2014-11-26 | Gear engagement pre-tightening structure of speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697044.4A CN104358857A (en) | 2014-11-26 | 2014-11-26 | Gear engagement pre-tightening structure of speed changing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104358857A true CN104358857A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410697044.4A Pending CN104358857A (en) | 2014-11-26 | 2014-11-26 | Gear engagement pre-tightening structure of speed changing box |
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| Country | Link |
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| CN (1) | CN104358857A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953695A (en) * | 2014-04-28 | 2014-07-30 | 四川大学 | High-damping filtering speed reducer |
| CN108386527A (en) * | 2018-03-27 | 2018-08-10 | 宝鸡法士特齿轮有限责任公司 | It is a kind of can dynamic adjustment gear meshing backlass gear set |
| CN108413014A (en) * | 2018-03-27 | 2018-08-17 | 宝鸡法士特齿轮有限责任公司 | A kind of six-gear gearbox assembly |
| CN113217587A (en) * | 2021-06-02 | 2021-08-06 | 田应雄 | Variable diameter gear stepless speed changer |
| CN117961821A (en) * | 2024-03-29 | 2024-05-03 | 南昌三瑞智能科技股份有限公司 | Frock is used in assembly between gear |
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| CN202646599U (en) * | 2012-06-14 | 2013-01-02 | 韶能集团韶关宏大齿轮有限公司 | Gear drive idle speed oscillation damping device |
| EP2735762A2 (en) * | 2012-11-26 | 2014-05-28 | Pyeong Hwa Clutch Industry Co. Ltd. | Dual mass flywheel |
| CN204239719U (en) * | 2014-11-26 | 2015-04-01 | 安徽江淮汽车股份有限公司 | A kind of gearbox gear engagement pre-pressing structure |
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| CN2299755Y (en) * | 1997-03-13 | 1998-12-09 | 贵州黎阳航空发动机公司 | Direct gear buffer device in transmission |
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| CN201258964Y (en) * | 2008-06-11 | 2009-06-17 | 翁光敏 | Noise eliminating balancing gear set |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953695A (en) * | 2014-04-28 | 2014-07-30 | 四川大学 | High-damping filtering speed reducer |
| CN108386527A (en) * | 2018-03-27 | 2018-08-10 | 宝鸡法士特齿轮有限责任公司 | It is a kind of can dynamic adjustment gear meshing backlass gear set |
| CN108413014A (en) * | 2018-03-27 | 2018-08-17 | 宝鸡法士特齿轮有限责任公司 | A kind of six-gear gearbox assembly |
| CN113217587A (en) * | 2021-06-02 | 2021-08-06 | 田应雄 | Variable diameter gear stepless speed changer |
| CN117961821A (en) * | 2024-03-29 | 2024-05-03 | 南昌三瑞智能科技股份有限公司 | Frock is used in assembly between gear |
| CN117961821B (en) * | 2024-03-29 | 2024-06-07 | 南昌三瑞智能科技股份有限公司 | Frock is used in assembly between gear |
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| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20150218 |