CN206320247U - Variator structure and speed changer - Google Patents
Variator structure and speed changer Download PDFInfo
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- CN206320247U CN206320247U CN201621294716.8U CN201621294716U CN206320247U CN 206320247 U CN206320247 U CN 206320247U CN 201621294716 U CN201621294716 U CN 201621294716U CN 206320247 U CN206320247 U CN 206320247U
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Abstract
A kind of variator structure, including input axle assembly, output axle assembly and countershaft assembly, input axle assembly includes input shaft and the input shaft constant mesh gear being fixedly linked with input shaft, and output axle assembly includes output shaft and the output shaft third gear, the overdrive gear of output shaft first, the overdrive gear of output shaft second, output shaft intermediate gear, the shelves gear of output shaft one and the back gear that are sequentially arranged at along power transmission direction on output shaft.The variator structure that the utility model is provided, by increasing by two overgears with not synchronized ratio, the speed that speed changer overgear and direct high can also be met while can meet max. speed requirement by making speed changer compares extreme difference, in addition, by the way that two hypervelocity shelves gears to be had been moved to the centre position of output shaft, gear is facilitated to reduce the amount of deflection of output shaft while arrangement.
Description
Technical field
The utility model is related to the speed changer of vehicle, and more particularly to a kind of variator structure and speed changer.
Background technology
The universal power transmission pattern of commercial car front-engine rear-drive is at present：Engine-transmission-vehicle bridge-tire, if speed changer
Each shelves speed reducing ratio is in, vehicle bridge speed reducing ratio is im, then whole power train total reduction ratio ik=in*im, engine output speed and torsion
Square is slowed down by power train total reduction ratio, final output to tire, the max. speed for meeting vehicle with this and maximum climbing
Degree is required, according to the rated output rotating speed (generally 2500-3200rpm) of existing commercial car Diesel engine, to make engine
Conventional working speed is in optimal fuel-economy region, and speed changer is typically provided with an overgear (speed is than the gear less than 1), examines
Consider high gear speed than extreme difference can not it is excessive in the case of, generally will hypervelocity notch speed ratio to be set to 0.75-0.85 interval.
Fig. 1 is the schematic diagram of variator structure in the prior art, please join Fig. 1, using the six-gear gearbox of commercial car as
Example, engine speed and moment of torsion are inputted by input shaft 50, and jackshaft 70 and jackshaft are delivered to through input shaft constant mesh gear 51
Gear, then output shaft six shift of gears 61, output shaft fourth gear 62, output shaft third gear are delivered to by jackshaft 70 respectively
63rd, output shaft intermediate gear 64, the shelves gear 65 of output shaft one and back gear 66, then drive output shaft 60 defeated by each shelves gear
The rotating speed and moment of torsion gone out after conversion, wherein input shaft constant mesh gear 51 are five shelves gears, and five grades are direct high (fast ratio is 1),
Output shaft six shift of gears 61 is overgear (speed is than being less than 1).I.e. the variator structure is divided successively along the incoming direction of power
Cloth five grades, six grades, fourth gear, third gear, two grades, one grade and reverse gear, overgear be six grades, direct high be five grades.Input shaft is often nibbled
Close and the first synchronizer combined cover 71 is provided between gear 51 and output shaft six shift of gears 61, output shaft fourth gear 62 and output
Be provided with the second synchronizer combined cover 72 between axle third gear 63, output shaft intermediate gear 64 and the shelves gear 65 of output shaft one it
Between be provided with the 3rd synchronizer combined cover 73.
When selector fork (not shown), which stirs combined cover 71, to be connected with input shaft constant mesh gear 51, now input shaft 50
It is directly connected to output shaft 60, transmission gear ratio is 1, as direct high；When selector fork stirs combined cover 71 and output shaft six
When shelves gear 61 is connected, now speed changer transmission speed is than being less than 1 (equivalent to speedup), as overgear.
However, commercial car Diesel engine develops to slow-speed of revolution direction, it is existing when constant engine output speed step-down
The working speed of engine is not optimal when the speed of speed changer overgear is than can not meet max. speed requirement or max. speed
Fuel-economy region；Speed changer hypervelocity notch speed ratio is merely improved, the speed between speed changer overgear and direct high can be made to compare pole
Difference is excessive, influences the dynamic property and economy of vehicle.
Utility model content
The purpose of this utility model is to provide a kind of variator structure and speed changer, is passed with solving existing speed changer
The speed of speed changer overgear requires the working speed of engine during with max. speed not than can not meet max. speed in dynamic structure
The problem of optimal fuel-economy region.
The utility model, which solves its technical problem, to be realized using following technical scheme.
A kind of variator structure of the utility model offer, including input axle assembly, output axle assembly and jackshaft are total
Into input axle assembly includes input shaft and the input shaft constant mesh gear being fixedly linked with input shaft, and output axle assembly includes defeated
It is shaft and the output shaft third gear being sequentially arranged at along power transmission direction on output shaft, the overdrive gear of output shaft first, defeated
The overdrive gear of shaft second, output shaft intermediate gear, the shelves gear of output shaft one and back gear, countershaft assembly include jackshaft
With multiple countershaft-gears on jackshaft, multiple countershaft-gears are mutually nibbled with each shelves gear on output shaft respectively
Close.
Further, input shaft constant mesh gear is fourth gear, and the overdrive gear of output shaft first is six shift of gears, output
The overdrive gear of axle second is five shelves gears.
Further, the fast ratio respectively less than 1 of the overdrive gear of output shaft first and the overdrive gear of output shaft second, and output shaft
First overdrive gear is different from the ratio coverage of the overdrive gear of output shaft second.
Further, the fast ratio of the overdrive gear of output shaft first is between 0.6~0.7, the overdrive gear of output shaft second
Fast ratio is between 0.8~0.9.
Further, output shaft third gear, the overdrive gear of output shaft first, the overdrive gear of output shaft second, output shaft
Intermediate gear, the shelves gear of output shaft one and back gear are set on output shaft by needle bearing, multiple countershaft-gears
It is each attached on jackshaft.
Further, the first synchronizer combined cover is provided between input shaft constant mesh gear and output shaft third gear,
The second synchronizer combined cover, two grades of teeth of output shaft are provided between the overdrive gear of output shaft first and the overdrive gear of output shaft second
The 3rd synchronizer combined cover is provided between wheel and the shelves gear of output shaft one.
Further, input shaft and output shaft are located along the same line, and jackshaft is parallel to input shaft and output shaft.
The utility model also provides a kind of speed changer, including variator structure as described above.
Further, speed changer also includes the gear selection position interchange mechanism being arranged on transmission upper cover, and gear selection position is mutual
Converting mechanism is exchanged for five grades, six grades of gear selection position and third gear, the gear selection position of fourth gear.
The variator structure that the utility model is provided, by being less than 1 in the universal only one of which of former six-gear gearbox
Exceed the speed limit on the basis of notch speed ratio, change into two hypervelocity notch speed ratios less than 1, speed changer is being met max. speed
It is required that while can also meet the speed of speed changer overgear and direct high than extreme difference, in addition, by the way that two hypervelocity shelves gears are moved
The centre position of output shaft has been arrived, has facilitated gear to reduce the amount of deflection of output shaft while arrangement.
Brief description of the drawings
Fig. 1 is the schematic diagram of variator structure in the prior art.
Fig. 2 is the schematic diagram of variator structure in the utility model embodiment.
Embodiment
Further to illustrate that the utility model is to reach technical approach and effect that predetermined utility model purpose is taken,
Below in conjunction with drawings and Examples, to embodiment of the present utility model, structure, feature and its effect, describe in detail such as
Afterwards.
Fig. 2 is the schematic diagram of variator structure in the utility model embodiment, please join Fig. 2, variator structure
Including input axle assembly, output axle assembly and countershaft assembly, input axle assembly includes input shaft 10 and fixed with input shaft 10
Connected input shaft constant mesh gear 11, input shaft constant mesh gear 11 is fourth gear.Exporting axle assembly includes output shaft 20
With the output shaft third gear 21 being sequentially arranged at along power transmission direction on output shaft 20, the first overdrive gear of output shaft 22,
The second overdrive gear of output shaft 23, output shaft intermediate gear 24, the shelves gear 25 of output shaft one and back gear 26, wherein, output
The first overdrive gear of axle 22 is six shift of gears, and the second overdrive gear of output shaft 23 is five shelves gears.Countershaft assembly includes centre
Axle 30 and multiple countershaft-gears on jackshaft 30, the plurality of countershaft-gear respectively with each shelves on output shaft 20
Gear is meshed.
In the present embodiment, output shaft third gear 21, the first overdrive gear of output shaft 22, the overdrive gear of output shaft second
23rd, output shaft intermediate gear 24, the shelves gear 25 of output shaft one and back gear 26 are set in output shaft 20 by needle bearing
On, the plurality of countershaft-gear is each attached on jackshaft 30.
In the present embodiment, input shaft 10 and output shaft 20 are located along the same line, and jackshaft 30 is parallel to the He of input shaft 10
Output shaft 20.
Further, multiple synchronizer combined covers are also associated with output shaft 20, for control each gear combination or
Separation, is wherein provided with the first synchronizer combined cover 31 between input shaft constant mesh gear 11 and output shaft third gear 21, defeated
The second synchronizer combined cover 32, output shaft two are provided between the first overdrive gear of shaft 22 and the second overdrive gear of output shaft 23
The 3rd synchronizer combined cover 33 is provided between shelves gear 24 and the shelves gear 25 of output shaft one.
In the utility model, the fast ratio respectively less than 1 of the first overdrive gear of output shaft 22 and the second overdrive gear of output shaft 23,
And the first overdrive gear of output shaft 22 is different from the ratio coverage of the second overdrive gear of output shaft 23.Will in order to meet max. speed
Ask, in the present embodiment, between the speed of the first overdrive gear of output shaft 22 is than preferably 0.6~0.7, the overdrive gear of output shaft second
23 speed than be 0.8~0.9 between.
As shown in Fig. 2 by taking 6 gear gearboxes as an example, inside the speed changer of the utility model embodiment gear arrangement from a left side to
Right (i.e. from input to output end) is respectively：Fourth gear (direct high), third gear, six grades (first overgear), five grades of (second hypervelocities
Shelves), two grades, one grade, reverse gear.Wherein, fourth gear is direct high, and possesses (five grades and six grades respectively two of two hypervelocity gears
Individual overgear), because direct shelves gear must be connected as a single entity with input shaft 10, taken in structure arrangement and output shaft first exceeds the speed limit
Gear 22 and the second overdrive gear of output shaft 23 are arranged in the middle part of output shaft 20, by output shaft third gear 21 and input shaft
Constant mesh gear 11 (i.e. fourth gear) is advanced to the input close to output shaft 20.
The utility model also provides a kind of speed changer, including variator structure as described above.
In order to keep driver's shifting operation handle position constant, gear selection position switch yard can be increased in transmission upper cover
Structure 40, five grades, six grades of gear selection position and third gear, the gear selection position of fourth gear are exchanged, you can met and required.
In the utility model, speed changer possesses two hypervelocity gears, and the fast ratio of an overgear is full in 0.6~0.7 scope
Sufficient vehicle max. speed requirement, the fast ratio of another overgear is located at 0.8~0.9 scope, is reaching identical max. speed condition
It is lower to match the relatively low engine of rated output rotating speed, meet each gear ratios extreme difference requirement of speed changer, common positions region speed
It is smaller than extreme difference, improve vehicle fuel economy.Moreover, new arrangement can make full use of existing part, make improvement cost
It is small.
In addition, by two overgear arrangement of gears in the centre position of output shaft, facilitating gear also to increase while arrangement
The amount of deflection of output shaft.Moreover, add gear selection position switching mechanism on transmission upper cover, it can keep what driver commonly used to change
Gear custom is constant.
Herein, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, are removed
Listed those key elements are included, but also other key elements being not expressly set out can be included.
Herein, the involved noun of locality such as forward and backward, upper and lower is to be located at parts in accompanying drawing in figure and zero
The position of part each other is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the noun of locality
Use should not limit the claimed scope of the application.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modifications, equivalent substitutions and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of variator structure, including input axle assembly, output axle assembly and countershaft assembly, the input axle assembly
The input shaft constant mesh gear (11) being fixedly linked including input shaft (10) and with the input shaft (10), it is characterised in that institute
Stating output axle assembly includes output shaft (20) and is sequentially arranged at the output shaft on the output shaft (20) along power transmission direction
Third gear (21), the overdrive gear of output shaft first (22), the overdrive gear of output shaft second (23), output shaft intermediate gear
(24), the shelves gear of output shaft one (25) and back gear (26), the countershaft assembly include jackshaft (30) and installed in institute
State multiple countershaft-gears on jackshaft (30), the multiple countershaft-gear respectively with each shelves on the output shaft (20)
Gear is meshed.
2. variator structure as claimed in claim 1, it is characterised in that the input shaft constant mesh gear (11) is four
Shelves gear, the overdrive gear of output shaft first (22) is six shift of gears, and the overdrive gear of output shaft second (23) is five grades
Gear.
3. variator structure as claimed in claim 1, it is characterised in that the overdrive gear of output shaft first (22) with
The fast ratio respectively less than 1 of the overdrive gear of output shaft second (23), and the overdrive gear of the output shaft first (22) with it is described defeated
The ratio coverage of the overdrive gear of shaft second (23) is different.
4. variator structure as claimed in claim 3, it is characterised in that the overdrive gear of output shaft first (22)
Fast ratio is between 0.6~0.7, and the fast ratio of the overdrive gear of output shaft second (23) is between 0.8~0.9.
5. variator structure as claimed in claim 1, it is characterised in that the output shaft third gear (21), described
It is the overdrive gear of output shaft first (22), the overdrive gear of the output shaft second (23), the output shaft intermediate gear (24), described
The shelves gear of output shaft one (25) and the back gear (26) are set on the output shaft (20) by needle bearing, described
Multiple countershaft-gears are each attached on the jackshaft (30).
6. variator structure as claimed in claim 1, it is characterised in that the input shaft constant mesh gear (11) and institute
State and be provided with the first synchronizer combined cover (31), the overdrive gear of output shaft first (22) between output shaft third gear (21)
The second synchronizer combined cover (32), the output shaft intermediate gear are provided between the overdrive gear of output shaft second (23)
(24) the 3rd synchronizer combined cover (33) is provided between the shelves gear of the output shaft one (25).
7. variator structure as claimed in claim 1, it is characterised in that the input shaft (10) and the output shaft
(20) it is located along the same line, the jackshaft (30) is parallel to the input shaft (10) and the output shaft (20).
8. a kind of speed changer, it is characterised in that including the variator structure as described in claim any one of 1-7.
9. speed changer as claimed in claim 8, it is characterised in that the speed changer also includes being arranged on transmission upper cover
Gear selection position interchange mechanism (40), the gear selection position interchange mechanism (40) be used for by five grades, six grades of gear selection position and third gear,
The gear selection position of fourth gear is exchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294716.8U CN206320247U (en) | 2016-11-28 | 2016-11-28 | Variator structure and speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294716.8U CN206320247U (en) | 2016-11-28 | 2016-11-28 | Variator structure and speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320247U true CN206320247U (en) | 2017-07-11 |
Family
ID=59264873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621294716.8U Active CN206320247U (en) | 2016-11-28 | 2016-11-28 | Variator structure and speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420497A (en) * | 2017-08-15 | 2017-12-01 | 十堰戎马汽车特种传动有限公司 | Low noise mechanical transmission |
| CN107747623A (en) * | 2017-11-22 | 2018-03-02 | 南京越博动力***股份有限公司 | A kind of pure electric automobile transmission system |
| CN112943873A (en) * | 2021-02-01 | 2021-06-11 | 徐州佑学矿业科技有限公司 | Impulse frequency and pressure adjustable pulse pump |
-
2016
- 2016-11-28 CN CN201621294716.8U patent/CN206320247U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420497A (en) * | 2017-08-15 | 2017-12-01 | 十堰戎马汽车特种传动有限公司 | Low noise mechanical transmission |
| CN107747623A (en) * | 2017-11-22 | 2018-03-02 | 南京越博动力***股份有限公司 | A kind of pure electric automobile transmission system |
| CN112943873A (en) * | 2021-02-01 | 2021-06-11 | 徐州佑学矿业科技有限公司 | Impulse frequency and pressure adjustable pulse pump |
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