CN101412367A - Fuel saving speed variator of automobile - Google Patents
Fuel saving speed variator of automobile Download PDFInfo
- Publication number
- CN101412367A CN101412367A CNA2008102325356A CN200810232535A CN101412367A CN 101412367 A CN101412367 A CN 101412367A CN A2008102325356 A CNA2008102325356 A CN A2008102325356A CN 200810232535 A CN200810232535 A CN 200810232535A CN 101412367 A CN101412367 A CN 101412367A
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- gear
- input shaft
- shaft
- synchro
- output shaft
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Abstract
The invention provides an automotive oil-saving transmission to solve the problems of keeping an intermediate shaft from rotating when a direct gear is put into place to avoid unnecessary power loss occurring during oil mixing. The transmission comprises an input shaft, an output shaft and the intermediate shaft. A gear of the input shaft is constantly meshed with a drive gear of the intermediate shaft, but the gear of the input shaft is sleeved on the input shaft. The input shaft is provided with a synchronizer of the input shaft which rotates together with the input shaft. The synchronizer of the output shaft selectively combines with the gear of the input shaft or with the output shaft through shift operation mechanism. After the synchronizer of the input shaft leaves the gear of the input shaft and combines with the output shaft, the input shaft is connected with the output shaft through the synchronizer, and, at the same time, the gear of the input shaft as well as the drive gear of the intermediate shaft, shifting gears on the intermediate shaft and the shifting gears on the output shaft do not rotate; and after the synchronizer of the input shaft combines with the gear of the input shaft, the transmission serves as a common transmission.
Description
Technical field
The invention belongs to the gear system of variable-speed ratio, specifically a kind of fuel saving speed variator of automobile.
Background technology
The drive mechanism of existing Automotive transmission is: the gear (shaft gear) of input shaft (also claiming) and tween drive shaft transmission gear constant-mesh, shifting gear on the tween drive shaft again with output shaft (also claiming two) on shifting gear engagement, therefore each gear in the change-speed box is all rotating under which kind of state.Express highway has become the trunk of highway communication at present, and for Duola hurries up, chaufeur is generally liked hanging direct speed and travelled on express highway, that is: input shaft and the output shaft with change-speed box links together.When Automotive transmission is hung direct speed, each gear in the change-speed box is in zero load idling conditions, produce meaningless expenditure of energy, the gear that is particularly dallying also continues stirring the gear oil in the change-speed box, and this to stir oily caused loss in efficiency still bigger.In addition, the gear that long-term fast idle can make tooth surface abrasion, the layshaft bearing wearing and tearing of gear, also can make two needle bearing wearing and tearing for single countershaft transission, makes that the out of order probability increase of change-speed box, product life shorten, noise strengthens.
Summary of the invention
Problem to be solved by this invention provides a kind of fuel saving speed variator of automobile that tween drive shaft does not change when hanging direct speed.That is: have only input shaft, output shaft and synchronous hub to rotate when hanging direct speed, thereby the power that makes driving engine is directly delivered on the output shaft, and the input shaft gear in the change-speed box does not change, each shifting gear on tween drive shaft transmission gear, tween drive shaft, the tween drive shaft and each shifting gear on the output shaft do not rotate, so just can avoid common change-speed box unnecessary stir oily loss in efficiency.
The technical scheme that addresses the above problem is: the fuel saving speed variator of automobile that is provided comprises input shaft, output shaft and tween drive shaft, the wherein input shaft gear that is provided with of input shaft and the transmission gear constant-mesh of tween drive shaft, each shifting gear on the tween drive shaft respectively with output shaft on the engagement of each shifting gear, improvements of the present invention are that the input shaft gear sky is enclosed within on the input shaft, also be provided with an input shaft synchro that rotates with input shaft on the input shaft, this input shaft synchro optionally combines with input shaft gear or combines with output shaft by shift control mechanism.When the input shaft synchro with after input shaft gear combines, input shaft drives input shaft gear by synchro and rotates, then tween drive shaft rotates, the change-speed box of this moment is just the same with common change-speed box; When input shaft synchro and input shaft gear are thrown off and with after output shaft combines, input shaft links together by synchro and output shaft, promptly be in the direct speed state, this moment, input shaft gear did not change, then the tween drive shaft transmission gear does not change, tween drive shaft does not change, and each shifting gear on the tween drive shaft does not change, each shifting gear on the output shaft does not change yet.
The present invention can be used for single countershaft transission and two layshaft gearbox, that is: above-mentioned said tween drive shaft can be one, also can be two.
Above-mentioned said synchro also can substitute with the identical sliding sleeve of function.
Synchro has three kinds of states: two engage a gear states and a neutral state, synchro is positioned at midway location during neutral state, the synchro engage a gear stroke that need move to left or move to right from middle position from neutral gear to the engage a gear state.Input shaft synchro of the present invention or combine with input shaft gear, or combine with output shaft.The input shaft synchro will move and be equivalent to two-fold engage a gear stroke when therefore this two states was changed, that is: elder generation moves to midway location (being equivalent to pluck shelves) from an engage a gear position, continue to move to another engage a gear position (being equivalent to engage a gear) again, this situation is reflected in the operation of chaufeur just need move shifter bar more distance or angle.In order to make chaufeur still keep original operating habit, the present invention further improves and is: set up a lever of realizing that stroke amplifies in shift control mechanism, one end of this lever is connected with the shift fork of input shaft synchro, the other end of this lever is connected with shifter bar by STATEMENT OF FEDERALLY SPONSORED, the lever ratio that said stroke amplifies lever is to determine like this: when hanging direct speed, when STATEMENT OF FEDERALLY SPONSORED moved an engage a gear stroke, the input shaft synchro moved to the position that combines with output shaft from its position that combines with input shaft gear through midway location.Like this, when chaufeur is hung other gear and will be removed direct speed, the direct speed guide block moves an engage a gear stroke, then direct speed shift fork drive input shaft synchro is finished successively and is plucked shelves and engage a gear, that is to say that chaufeur is the normal state that this change-speed box is changed back to the tween drive shaft rotation under incognizant situation from energy-conservation direct speed state.
In order further to strengthen lubricant effect, an oil pump can also be installed on the input shaft of the present invention, the oil inlet of this oil pump extends in the gear oil in the change-speed box, the oil outlet of oil pump is communicated with the central axial bore of input shaft, the central axial bore of input shaft is communicated with the central axial bore of transmission output shaft by a connection pipe, input shaft and output shaft are provided with a plurality of radial holes that are communicated with its central axial bore, and these radial holes correspond respectively to the friction of motion face of each rotatable parts on input shaft and the output shaft.When input shaft rotates, drive oil pump and rotate, oil is delivered to each friction of motion face on input shaft and the output shaft.The above-mentioned oil pump that is installed on the input shaft preferably adopts gear-within-gear pump.
The sensation that strength obviously increases when hanging the operation of direct speed and hanging other gear in order to eliminate chaufeur, the input shaft synchro preferably adopts double taper synchronizer.
The gear of the present invention's change-speed box when hanging direct speed does not rotate, so the noise during its operation is lower, not only saves fuel oil, cuts down the consumption of energy, and the wearing and tearing of gear and bearing have been reduced, make change-speed box energy actv. life-saving, reduce fault, reduce the operation cost of automobile.Because be provided with the direct speed steering unit that stroke amplifies, the gear shift operation of chaufeur is the same with original custom.
Description of drawings
Fig. 1 is a structural representation of the present invention, shown in the figure for hanging up the state behind the direct speed.
Constitution diagram when Fig. 2 removes direct speed for the present invention.
Fig. 3 is the constructional drawing of an embodiment of lubricating system of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing content of the present invention is described in detail.
As shown in Figure 1: present embodiment is a two layshaft gearbox, have six D Drives and a reverse gear (wherein one grade identical with the reverse gear transmission with existing change-speed box, so do not draw), each gear positions shown in the figure just schematically illustrates, and actual gear positions can be arranged as requested.This fuel-economizing change-speed box has input shaft 1, output shaft 2 and two tween drive shafts 3 (tween drive shaft only draws among the figure), input shaft gear 4 skies are enclosed within on the input shaft 1, it and tween drive shaft transmission gear 5 constant-meshes, each shifting gear and tween drive shaft on the tween drive shaft combine, and each the gear sky on the output shaft is enclosed within on the output shaft.Input shaft 1 is provided with a bipyramid face lock ring type synchro 6, it with input shaft 1 between for spline is connected, so rotate with input shaft 1.Direct speed shift fork 7 is connected with input shaft synchro 6, can make input shaft synchro 6 sway by direct speed shift fork 7, thereby realizes that synchro 6 combines with input shaft gear 4 or with output shaft 2.Figure 1 shows that after synchro 6 moves to right to combine with output shaft 2 that this moment, input shaft 1 connected as one with output shaft 2, change-speed box is for hanging the direct speed state, and the synchro on the output shaft 2 mediates.Throw off with input shaft gear 4 back because input shaft synchro 6 moves to right, so input shaft gear 4 does not change, so tween drive shaft 3 does not change, each gear in the change-speed box does not rotate yet, thereby has avoided gear to stir oily caused loss in efficiency.
As shown in Figure 2: in the time of removing direct speed, direct speed shift fork 7 moves to left, and makes input shaft synchro 6 and output shaft 2 throw off and combine with input shaft gear 4, and input shaft 1 rotates by synchro 6 driven gears 4, and then, can hang other shelves this moment by 3 rotations of tween drive shaft transmission gear 5 drive tween drive shafts.For example the output shaft high speed gear shown in the figure moves to right with time high speed gear synchro 8, combines the back with inferior high speed gear 9 and hangs time high speed gear.If synchro 8 moves to left, then combine change into higher gear with high speed gear 10.Hanging other two low gears can realize by the sway of second synchro 11.
In addition, because change-speed box its all gears when hanging direct gear comprise that tween drive shaft does not change, and the rotating speed of output shaft is very high, synchronous rapidly in order to forward change into higher gear or inferior high speed gear to from direct speed by output shaft and static high speed gear 10 or inferior high speed gear 9 and countershaft assembly, the output shaft gearshift is preferably adopted three very big conical surface synchros of synchronising torque with high speed gear in the synchro and time high speed gear synchro 8, also can adopt double taper synchronizer or sliding sleeve.
Referring to Fig. 1, Fig. 2, the stroke enlarger has been adopted in the manipulation of the extension direct speed of this example: direct speed shift fork 7 amplifies lever 12 with a stroke and is connected (also can amplify lever 11 by attaching parts and stroke is connected), stroke amplifies lever 12 and is driven by STATEMENT OF FEDERALLY SPONSORED 13, its lever ratio is 1: 2, the engage a gear of each synchro of change-speed box or to pluck grade stroke identical.STATEMENT OF FEDERALLY SPONSORED 13 is driven by shifter bar, because the stroke amplification of lever 12, if STATEMENT OF FEDERALLY SPONSORED 13 moves an engage a gear stroke, then direct speed shift fork 7 is with mobile two-fold engage a gear stroke, so the operation of engage a gear just can realize plucking grade of synchro 6 and engage a gear, stroke amplifies lever and also has acting in opposition in addition, makes chaufeur hang direct speed or the operational motion when direct speed is hung other retaining is the same with the operational motion of common change-speed box, and promptly chaufeur need not change original operating habit.
In order further to strengthen lubricant effect, this example has also set up one, and respectively the axial hole by input shaft and output shaft center is to the lubricating system of each friction of motion face fuel feeding, and its structure is referring to Fig. 3.A gear-within-gear pump 20 is installed on input shaft 1, and the external gear 21 of this gear type pump connects by key and input shaft 1 combines, and the pump housing 22 of gear type pump is installed in the bearing cap shim of input shaft.The external gear 21 of gear type pump and inner gear 23 engagements, external gear 21 is provided with axial hole 24 and the radial hole 25 that is interconnected, the axial hole 24 of external gear communicates with the pumping cavity of gear type pump by the oily passage of joining on the pump housing or the pump cover, the radial hole 25 of external gear is communicated with the axial hole 27 at input shaft center by the radial hole 26 of input shaft, the axial hole 27 at input shaft center is communicated with the central axial bore 29 of transmission output shaft 2 by a connection pipe 28, also be provided with a plurality of radial holes 30 that are communicated with its central axial bore 29 on output shaft 2, they lead to each fricting movement face respectively.The input shaft driving gear pump is delivered to each fricting movement face with the oil in the change-speed box by the central axial bore and the radial hole of input shaft and output shaft.
Claims (9)
1, a kind of fuel saving speed variator of automobile, comprise input shaft (1), output shaft (2) and tween drive shaft (3), transmission gear (5) constant-mesh of the input shaft gear (4) that is provided with of input shaft and tween drive shaft wherein, each shifting gear on the tween drive shaft respectively with output shaft on the engagement of each shifting gear, output shaft is provided with the gear shift synchro, it is characterized in that input shaft gear (4) sky is enclosed within on the input shaft (1), also be provided with an input shaft synchro (6) that rotates with input shaft on the input shaft, this input shaft synchro (6) optionally combines with input shaft gear (4) or combines with output shaft (2) by shift control mechanism.
2, change-speed box according to claim 1, it is characterized in that being provided with in the said shift control mechanism lever (12) of realizing that stroke amplifies, one end of this lever is connected with the shift fork (7) of input shaft synchro (6), the other end of this lever is connected with shifter bar by STATEMENT OF FEDERALLY SPONSORED (13), the lever ratio that said stroke amplifies lever is to determine like this: when hanging direct speed, when STATEMENT OF FEDERALLY SPONSORED (13) moved an engage a gear stroke, input shaft synchro (6) moved to the position that combines with output shaft (2) from its position that combines with input shaft gear (4) through midway location.
3, change-speed box according to claim 1 and 2, it is characterized in that also installing on the said input shaft oil pump (20), the oil inlet of this oil pump extends in the gear oil in the change-speed box, the oil outlet of oil pump is communicated with the central axial bore of input shaft (27), the central axial bore of input shaft is communicated with the central axial bore (29) of transmission output shaft by a connection pipe (28), input shaft and output shaft are provided with a plurality of and its central axial bore (28,29) radial hole of Lian Tonging, these radial holes correspond respectively to the friction of motion face of each rotatable parts on input shaft and the output shaft.
4, change-speed box according to claim 3 is characterized in that said oil pump (20) adopts gear-within-gear pump.
5, change-speed box according to claim 1 and 2 is characterized in that said input shaft synchro (6) adopts double taper synchronizer.
6, change-speed box according to claim 3 is characterized in that said input shaft synchro (6) adopts double taper synchronizer.
7, change-speed box according to claim 1 and 2 is characterized in that the high speed gear and time high speed gear synchro (8) employing three conical surface synchros or double taper synchronizer or sliding sleeve of said output shaft gearshift in the synchro.
8, change-speed box according to claim 3 is characterized in that the high speed gear and time high speed gear synchro (8) employing three conical surface synchros or double taper synchronizer or sliding sleeve of said output shaft gearshift in the synchro.
9, change-speed box according to claim 7 is characterized in that the high speed gear and time high speed gear synchro (8) employing three conical surface synchros or double taper synchronizer or sliding sleeve of said output shaft gearshift in the synchro.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102325356A CN101412367A (en) | 2008-12-02 | 2008-12-02 | Fuel saving speed variator of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102325356A CN101412367A (en) | 2008-12-02 | 2008-12-02 | Fuel saving speed variator of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101412367A true CN101412367A (en) | 2009-04-22 |
Family
ID=40593177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102325356A Pending CN101412367A (en) | 2008-12-02 | 2008-12-02 | Fuel saving speed variator of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101412367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059127A (en) * | 2019-12-17 | 2020-04-24 | 睿欧启富(苏州)包装科技有限公司 | Gear transmission case |
| CN115823246A (en) * | 2022-11-21 | 2023-03-21 | 合肥工业大学 | Correction system and method for mechanical gear engagement of tractor transmission |
-
2008
- 2008-12-02 CN CNA2008102325356A patent/CN101412367A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059127A (en) * | 2019-12-17 | 2020-04-24 | 睿欧启富(苏州)包装科技有限公司 | Gear transmission case |
| CN115823246A (en) * | 2022-11-21 | 2023-03-21 | 合肥工业大学 | Correction system and method for mechanical gear engagement of tractor transmission |
| CN115823246B (en) * | 2022-11-21 | 2024-06-11 | 合肥工业大学 | Correction method for mechanical gear shifting of tractor transmission |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090422 |