CN201078441Y - Automobile mechanical type variable speed drive - Google Patents
Automobile mechanical type variable speed drive Download PDFInfo
- Publication number
- CN201078441Y CN201078441Y CNU2007201068952U CN200720106895U CN201078441Y CN 201078441 Y CN201078441 Y CN 201078441Y CN U2007201068952 U CNU2007201068952 U CN U2007201068952U CN 200720106895 U CN200720106895 U CN 200720106895U CN 201078441 Y CN201078441 Y CN 201078441Y
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- gear
- shaft
- variable speed
- jack shaft
- speed drive
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Abstract
An automobile mechanical type variable speed device mainly is a tri-shaft structure and one-piece box body, which comprises a shaft I, an intermediate shaft and a shaft II; wherein, the shaft I and II are arranged on the same straight line, the axial lines of the intermediate shaft and the shaft I are parallel, and a gear on the shaft I and a first gear at the left end of the intermediate shaft are constantly meshed transmission gears. Except for one-piece gears, all the gears on the intermediate shaft are fixedly connected in interference fit mode, and the gear on the shaft II is interstitially sleeved on the shaft II, which is equipped with three sets of short stroke synchronizer assemblies and a set of directly connected type sliding gear sleeve and is controlled by a speed variator control mechanism. The speed variator control mechanism is composed of a top cover assembly with a gear-selection and gear-shift mechanism and an upper cover assembly with a gear-shift shifting fork. The interstitially sleeved gear on the shaft II is connected with a synchronous cone through a spline, and a gear seat is connected with the shaft II by a spline. A synchronous ring and a gear sleeve, which are connected with the shifting fork, are matched with the synchronous cone and the gear seat. The utility model has simple and impact structure, convenient and flexible operation, small external dimension, light weight, relatively advanced technical index, reliable usage, convenient installation and maintenance, low cost and the other characteristics.
Description
Technical field
The utility model relates to a kind of mechanical type variable speed drive that is matched in specially on the automobile, especially a kind of seven grades of automobile machinery variable speed drives with the short stroke synchronizer.
Background technique
The automobile machinery speed change drive technology that has synchronizer at present is quite ripe, wherein there is a kind of main structure to comprise: the triple axle structure, the integral type casing, one, jack shaft and two are arranged respectively, wherein one, two is arranged as on same straight line, and the axis of jack shaft is parallel with an axis.Because that arranges on the structure is unreasonable, domestic present load-carrying vehicular transmission one-piece box body length is longer, generally mostly be six grades of casees and one shelves speed ratio about 7.00, thereby known speed changer makes the passing capacity variation of the grade climbing performance and the complex road surface of automobile, using scope is limited, the working life of synchronizer is short, and reliability reduces, and can not adapt to needs such as urban construction, infrastructure construction, development of the West Regions.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and a kind of adopt advanced short stroke and double-cone synchronizer are provided, and makes synchronizing process faster, and synchronous effect power reduces, the automobile machinery variable speed drive that longer service life and reliability improve.
The purpose of this utility model is finished by following technical solution, it is mainly the triple axle structure, the integral type casing, one, jack shaft and two are arranged respectively, wherein one, two is arranged as on same straight line, the axis of jack shaft is parallel with an axis, and gear and first gear of jack shaft left end on one are normal engagement driving gear; All gears on the jack shaft are except that the one gear, and all the other all form so that the interference fit form is fixed; Gear on two and two then are enclosed within on two by the rolling bearing sky, three cover short stroke synchronizer assemblies and a cover direct-type sliding gear collar are housed on two respectively, and are controlled by transmission control.
Described transmission control is made up of top cover assembly that has gear selecting, gearshift and the last cap assembly that has a reverse shift fork; Free gear on two is connected with synchronous awl with spline, is connected with toothholder with spline on two, corresponding with toothholder supporting synchronizing ring and the tooth cover that joins with shift fork that have with above-mentioned synchronous awl.
Described two go up by needle bearing be set with seven respectively with jack shaft on seven engaging gears that gear mesh is answered, and constitute seven forward gearss and a reverse gear gear.
In the described gear two, third gear, four, five grades and six, seven grades are all adopted inertia slide block type short stroke synchronizer assembly or adopt the double-cone synchronizer assembly.
The beam overall 46mm of described synchronizer assembly, gear shift stroke are 10mm, and the reserve stroke is 1.5mm; Synchronizing ring then adopts the case-carbonizing of high-quality low-carbon alloy steel, quenches; Synchronizing ring conical surface surface needs to handle through sprayed molybdenum.
Toothholder in the described synchronizer is consolidated by internal spline and one; The synchronous awl of external splines and male cone (strobilus masculinus) combines in gear that has external splines and band equally; Described whole gear all adopts thin and tall helical teeth and helical teeth.
Described one, two center line is 150mm with the parallel centre distance of jack shaft center line, and monomer casing length overall is 525mm; The bearing of a described input end and two output terminals adopts full roller bearing.
The utility model belongs to a kind of improvement to prior art, it has simple in structure, compact, handiness is flexible, boundary dimension is little, in light weight, and technical order is advanced, uses reliable, installation and maintenance are convenient, cost is low, and " three change " degree height of main parts size can satisfy the characteristics such as demand of various trucies, special purpose vehicle, passenger vehicle and the special vehicle of input torque 580～833N.m power.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a drive mechanism schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in the accompanying drawing, the utility model is mainly the triple axle structure, the integral type casing, have one 2 respectively, jack shaft 5 and two 8, wherein one, two is arranged as on same straight line, the axis of jack shaft is parallel with an axis, it is characterized in that gear and first gear of jack shaft left end on is normal engagement driving gear; All gears on the jack shaft are except that the one gear, and all the other all form so that the interference fit form is fixed; Gear on two and two then are enclosed within on two by the rolling bearing sky, three cover short stroke synchronizer assemblies 15 and a cover direct-type sliding gear collar 17 are housed on two respectively, and are controlled by transmission control.
Described transmission control is made up of top cover assembly 14 that has gear selecting, gearshift and the last cap assembly 16 that has a reverse shift fork; Free gear on two 8 is connected with synchronous awl 11 with spline, is connected with toothholder 12 with spline on two, with above-mentioned synchronous awl 11 and toothholder 12 corresponding supporting synchronizing ring 10 and the tooth covers 13 that join with shift fork that have.
On described two 8 by needle bearing be set with seven respectively with jack shaft on seven engaging gears that gear mesh is answered, and constitute seven forward gearss and a reverse gear gear.In the described gear two, third gear, four, five grades and six, seven grades are all adopted inertia slide block type short stroke synchronizer assembly or adopt the double-cone synchronizer assembly.
The beam overall 46mm of described synchronizer assembly, gear shift stroke are 10mm, and the reserve stroke is 1.5mm; Synchronizing ring then adopts the case-carbonizing of high-quality low-carbon alloy steel, quenches; Synchronizing ring conical surface surface needs to handle through sprayed molybdenum.
Described one 2, two 8 center line is 150mm with the parallel centre distance of jack shaft 5 center lines, and monomer casing length overall is 525mm; The bearing of a described input end and two output terminals adopts full roller bearing.
The utility model can be according to the needs of different automobile types, and speed changer divides band direct high and the multiple different speed ratios of band overdirve gear.The speed ratio 10.1～1 of band direct drive transmission; The speed ratio of band over drive transmision is 9～0.87.The input torque of speed changer is 580～833Nm.Speed changer adopts the triple axle gear-driven form, and gear all adopts thin and tall helical teeth and helical teeth.Except that reverse gear, one grade, all adopt the short stroke synchronizer.Each position control mechanism of speed changer adopts directly and remote single, double lever operation, also annoying assisteding control.
This transmission device owing to adopted the short stroke synchronizer, makes synchronizer length of installation FCL reduce nearly 30mm, speed changer structure more is becoming tight gathers, and its berth-changing strength can reduce 25% on year-on-year basis, makes gear shift lighter.Gear adopts thin and tall helical teeth and helical teeth, and the overlap coefficient of engagement increases, and the meshing performance quality improves, and intensity increases, and noise reduces.Become geometric progression to arrange between the gear of 7 forward gearss, gear shift is steady.Since have above characteristics, thereby make this variable speed drive novel structure, compactness, and the advanced person can satisfy the usage requirement of Chinese road actual conditions better.
The utility model can attach side power output (PTO) device, to be adapted to the special purpose vehicle of various different purposes; Can dispose multi-form and pushing or drawing type clutch specification; Can match that remote single pole, remote two bars, direct manipulation are gentle multi-form control system such as assisteds control.The utility model can also have mechanical type odometer driving mechanism.Its speed ratio can also can have electronic type odometer driving mechanism according to main engine factory and user's needs design; Can have reverse gear and neutral gear electronic signal switch.
The utility model is a kind of seven grades of automobile machinery variable speed drives with the short stroke synchronizer, have seven forward gearss, a reverse gear, the forward gears slowest ratio is 10.13, minimum speed ratio is 0.87, the reverse gear slowest ratio is 9.455, becomes the geometric progression rounding to arrange the integral type casing between each gear.Except that reverse gear and one grade adopted sliding gear collar, all the other each grade forward gearss all adopted short stroke (or bipyramid) synchronizer.The synchronizer shift stroke is 10mm, and the reserve stroke is 1.5mm.
The utility model adopts the triple axle gear-driven form. and arrange that in line 5 of jack shafts are in parallel for one 2 and two 8, central axis is 150mm apart from distance.Engaging gear all adopts thin and tall helical teeth and helical teeth, increases the overlap coefficient of engagement with this, thereby further improves the gear engagement quality of product.Be applicable to the various vehicles of input torque 580～833N.m.
Domestic present load-carrying vehicular transmission one-piece box body length is within 525mm, and input torque is that 7 grades of casees of 580～833N.m still belong to the first.Since the length of installation that adopts advanced short stroke and double-cone synchronizer not only to reduce synchronizer, and use synchronizing process faster, synchronous effect power reduces, and longer service life and reliability improve.Domesticly mostly be six grades of casees and one shelves speed ratio about 7.00 because input torque 580～833N.m is existing, and one grade of speed ratio of the utility model is 10.13 with speed changer.Thereby the grade climbing performance of automobile and the passing capacity of complex road surface are improved greatly, also enlarged using scope simultaneously.Because being arranged as according to motor characteristic curve of 7 gears optimizes the arrangement of, and makes that its fuel-economizing performance is better.On the other hand because numerous factors such as the construction in city, infrastructure construction, development of the West Regions, make the heavy goods vehicles market of this type of input torque be the sound social atmosphere of quick growth.
Manipulation controlling component of the present utility model can select that remote single pole, remote two bars, direct manipulation are gentle different patterns such as assisteds control according to main engine factory and user's requirement for use, thereby enlarges the scope of its use.
Engine power described in the utility model (moment of torsion) imports into from one 2 of speed changer, a left end links to each other with clutch with motor, the separation and the combination that come solenoidoperated cluthes by the axial motion of clutch release bearing 3, just power imports into and cuts off.One 2 right-hand member is left-handed spiral gear, and with the high order end gear engagement of jack shaft 5, this is a constant mesh gear to gear, when rotating for one 2, pass through constant mesh gear, drive jack shaft 5 and rotate together, have seven gears to be dextrorotation on the jack shaft and also all be fixed on the jack shaft 5, on two 8, have equally and jack shaft 5 pairing engaging gears.These gears all are enclosed within on two 8 by the needle bearing sky.The gear that has external splines combines with the synchronous awl 11 of being with interior external splines and male cone (strobilus masculinus), toothholder 12 in the synchronizer is consolidated by internal spline and one, during operation by gear selecting, gearshift mechanism 14 be installed in the different shifting fork mechanisms that cover, the tooth cover 13 of shift fork diverse location and the effect of synchronizer, different moments of torsion is exported by the output flange 9 of transmission assembly at last, pass to transmission shaft and back driving axle, thereby drive automobile running.
Manipulation controlling component of the present utility model can select that remote single pole, remote two bars, direct manipulation are gentle different patterns such as assisteds control according to main engine factory and user's requirement for use, thereby enlarges the scope of its use.
Claims (7)
1. automobile machinery variable speed drive, it is mainly the triple axle structure, the integral type casing, one (2), jack shaft (5) and two (8) are arranged respectively, wherein one, two is arranged as on same straight line, the axis of jack shaft is parallel with an axis, it is characterized in that gear and first gear of jack shaft left end on is normal engagement driving gear; All gears on the jack shaft are except that the one gear, and all the other all form so that the interference fit form is fixed; Gear on two and two then are enclosed within on two by the rolling bearing sky, and three cover short stroke synchronizer assemblies (15) and being housed on two respectively overlaps direct-type sliding gear collar (17), and is controlled by transmission control.
2. automobile machinery variable speed drive according to claim 1 is characterized in that described transmission control is made up of top cover assembly that has gear selecting, gearshift (14) and the last cap assembly (16) that has a reverse shift fork; Free gear on two (8) is connected with synchronous awl (11) with spline, is connected with toothholder (12) with spline on two, corresponding with toothholder (12) supporting synchronizing ring (10) and the tooth cover (13) that joins with shift fork that have with above-mentioned synchronous awl (11).
3. automobile machinery variable speed drive according to claim 1 and 2, it is characterized in that described two (8) go up by needle bearing be set with seven respectively with jack shaft on seven engaging gears that gear mesh is answered, and constitute seven forward gearss and a reverse gear gear.
4. automobile machinery variable speed drive according to claim 3 is characterized in that two in the described gear, third gear, and four, five grades and six, seven grades are all adopted inertia slide block type short stroke synchronizer assembly or adopt the double-cone synchronizer assembly.
5. automobile machinery variable speed drive according to claim 4 is characterized in that the beam overall 46mm of described synchronizer assembly, and the gear shift stroke is 10mm, and the reserve stroke is 1.5mm; Synchronizing ring then adopts the case-carbonizing of high-quality low-carbon alloy steel, quenches; Synchronizing ring conical surface surface needs to handle through sprayed molybdenum.
6. according to claim 4 or 5 described automobile machinery variable speed drives, it is characterized in that the toothholder (12) in the described synchronizer is consolidated by internal spline and one; The synchronous awl (11) of external splines and male cone (strobilus masculinus) combines in gear that has external splines and band equally; Described whole gear all adopts thin and tall helical teeth and helical teeth.
7. automobile machinery variable speed drive according to claim 6, the center line that it is characterized in that described (2), two (8) is 150mm with the parallel centre distance of jack shaft (5) center line, monomer casing length overall is 525mm; The bearing of a described input end and two output terminals adopts full roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201068952U CN201078441Y (en) | 2007-03-03 | 2007-03-03 | Automobile mechanical type variable speed drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201068952U CN201078441Y (en) | 2007-03-03 | 2007-03-03 | Automobile mechanical type variable speed drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078441Y true CN201078441Y (en) | 2008-06-25 |
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ID=39570503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201068952U Expired - Lifetime CN201078441Y (en) | 2007-03-03 | 2007-03-03 | Automobile mechanical type variable speed drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078441Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090388A (en) * | 2015-09-02 | 2015-11-25 | 陕西法士特齿轮有限责任公司 | Seven-gear speed changing box |
-
2007
- 2007-03-03 CN CNU2007201068952U patent/CN201078441Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090388A (en) * | 2015-09-02 | 2015-11-25 | 陕西法士特齿轮有限责任公司 | Seven-gear speed changing box |
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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 | ||
| CP03 | Change of name, title or address |
Address after: Xiaoshan District of Hangzhou City, Zhejiang Province, Xiao Jin Road No. 45, zip code: 311203 Patentee after: Hangzhou Advance Gearbox Group Co., Ltd. Address before: Xiaoshan District of Hangzhou City, Zhejiang Province, Xiao Jin Road No. 45, zip code: 311203 Patentee before: Hangzhou Qianjin Gear Box Group Corp., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080625 |