CN204253759U - A kind of six grades of single countershaft transmissions - Google Patents
A kind of six grades of single countershaft transmissions Download PDFInfo
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- CN204253759U CN204253759U CN201420664308.1U CN201420664308U CN204253759U CN 204253759 U CN204253759 U CN 204253759U CN 201420664308 U CN201420664308 U CN 201420664308U CN 204253759 U CN204253759 U CN 204253759U
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Abstract
A kind of six grades of single countershaft transmissions, comprise the input shaft being integrated with input gear, input gear often engages with the jack shaft driving gear being arranged on jack shaft front end, the top of jack shaft is provided with main shaft, and the countershaft-gear on jack shaft often engages with the mainshaft gear on main shaft respectively, rear-end of spindle connects output flange; Mainshaft gear sorts from rear successively to front, Double-conical-surface lock ring type synchronizer is provided with between one grade and intermediate gear, first single conical surface lock ring type synchronizer is provided with between third gear and fourth gear, second single conical surface lock ring type synchronizer is provided with between five grades and six shift of gears, the rear end of one grade of gear is provided with reverse gear, reverse gear connects reverse gear sliding sleeve, synchronizer sliding sleeve connects main shaft by Tong Bu Qi Chi Grains, synchronizer sliding sleeve riding and is provided with reverse shift fork, realizing the adjustment of transmission speed ratio and outputting power by handling reverse shift fork.The utility model compact structure, axial dimension is short, shifts gears light, and arrangement can be made more convenient.
Description
Technical field
The utility model relates to a kind of speed changer, is specially a kind of six grades of single countershaft transmissions.
Background technique
The setting type of variator axle has two-axis and triple axle two kinds usually, and the automobile of usual rear wheel drive can adopt three-axle speed variator, i.e. input shaft, output shaft and jack shaft.Input shaft front end borrows clutch and motor to be connected, output shaft rear end is connected by flange and universal driving device, input shaft and output shaft are placed on same horizontal line, and jack shaft is then arranged in parallel with them, and power again reaches output shaft from input shaft through jack shaft by gear.
Light card and passenger vehicle mainly apply five grades or six grades of single countershaft transmissions both at home and abroad at present, and traditional single countershaft transmission axial dimension is long, weight is large, shifts gears heavy, can not adapt to nowadays light card and passenger vehicle requirement small size, lightweight, light feature of shifting gears.
Model utility content
The purpose of this utility model is for above-mentioned shortcoming of the prior art, provide that a kind of input torque is large, axial dimension is short, lightweight, shift gears six grades of single countershaft transmissions light.
To achieve these goals, the technical solution adopted in the utility model is: comprise the input shaft being integrated with input gear, input gear often engages with the jack shaft driving gear being arranged on jack shaft front end, the top of jack shaft is provided with main shaft, and the countershaft-gear on jack shaft often engages with the mainshaft gear on main shaft respectively, rear-end of spindle connects output flange;
Described mainshaft gear sorts from rear successively to front, and main shaft is provided with Double-conical-surface lock ring type synchronizer between one grade and intermediate gear, first single conical surface lock ring type synchronizer is provided with between third gear and fourth gear, second single conical surface lock ring type synchronizer is provided with between five grades and six shift of gears, the rear end of one grade of gear is provided with the reverse gear connecting reverse gear sliding sleeve, synchronizer sliding sleeve connects main shaft by Tong Bu Qi Chi Grains, synchronizer sliding sleeve riding and is provided with reverse shift fork, realizing the adjustment of transmission speed ratio and outputting power by handling reverse shift fork.
Described front-end of spindle is by being supported in input shaft without outer ring roller bearing.
Described input shaft is connected on mission case; Described jack shaft front end is connected on mission case, and the rear end of jack shaft is connected on bonnet housing; Described rear-end of spindle is connected on bonnet housing.
Described Tong Bu Qi Chi Grains is connected with main shaft by spline, and reverse gear sliding sleeve is connected with reverse gear by spline.
Described reverse shift fork is handled by cab leverage, cab leverage comprises horizontal gear level, horizontal gear level is connected with the shifting block can followed it and rotate, shifting block drives selector fork axle to move by guide block, selector fork axle drives reverse shift fork to move, synchronizer sliding sleeve, with reverse shift fork synchronizing moving, after the engagement of synchronizer sliding sleeve, namely realizes the adjustment of transmission speed ratio and outputting power.
Described synchronizer engage a gear stroke is 9.5mm.
Described countershaft-gear and jack shaft adopt interference fit.
Compared with prior art, the power of motor is passed to the input shaft of speed changer by the utility model by clutch, because input gear often engages with jack shaft driving gear, countershaft-gear often engages with mainshaft gear, carry out transmission by jack shaft, power is exported by output flange by main shaft.When needs carry out gear shift operation, because synchronizer sliding sleeve connects with synchromesh gear hub, synchromesh gear hub connects with main shaft, synchronizer sliding sleeve rides and is provided with reverse shift fork, realizes the adjustment of transmission speed ratio and outputting power by handling reverse shift fork.The utility model compact structure, by the optimal design cogged to two axles, speed changer axial dimension reduces, weight saving, make speed changer from main tank housing forward end face to output flange ear end face length of installation be reduced to 736.7mm, centre distance is 108mm, and arrangement is more convenient, also increase significantly moment of torsion, test moment of torsion can reach 550Nm simultaneously.Owing to being provided with Double-conical-surface lock ring type synchronizer between one grade and intermediate gear, synchronous capacity is increased, lock in time shortens, and gear shifting force reduces, and shifts gears light.The utility model second gear speed ratio can reach more than 3.3, and ratio coverage is large, can meet light card and fuel-efficient, the economic demand of passenger vehicle.
Further, shifting block of the present utility model is used for following horizontal gear level and rotates, and shifting block drives selector fork axle to move by guide block, therefore the shorten length of shifting block, employing engage a gear stroke is the short stroke synchronizer of 9.5mm simultaneously, gear shifting force is reduced, shifts gears lighter.
Further, countershaft-gear of the present utility model and jack shaft adopt interference fit, eliminate the woodruff key in traditional design and four square keys, make the size of countershaft-gear less, more compact structure, and it is more reasonable to design.
Accompanying drawing explanation
Fig. 1 overall structure schematic diagram of the present utility model;
In accompanying drawing: 1-input shaft; 2-jack shaft driving gear; 3-jack shaft; 4-countershaft-gear; 5-main shaft; 6-mainshaft gear; The horizontal gear level of 7-; 8-shifting block; 9-selector fork axle; 10-reverse shift fork; 11-reverse gear sliding sleeve; 12-output flange; 13-second single conical surface lock ring type synchronizer; 14-first single conical surface lock ring type synchronizer; 15-Double-conical-surface lock ring type synchronizer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, the utility model comprises the input shaft 1 being integrated with input gear, input gear often engages with the jack shaft driving gear 2 being arranged on jack shaft 3 front end, main shaft 5 is installed above jack shaft 3, main shaft 5 front end is by being supported in input shaft 1 without outer ring roller bearing, countershaft-gear 4 on jack shaft 3 often engages with the mainshaft gear 6 on main shaft 5 respectively, and countershaft-gear 4 and jack shaft 3 adopt the mode of interference fit to be connected and fixed, and main shaft 5 rear end connects output flange 12; Input shaft 1 is connected on mission case, and jack shaft 3 front end is connected on mission case, and the rear end of jack shaft 3 is connected on bonnet housing, and main shaft 5 rear end is connected on bonnet housing, and whole case of transmission is divided into two sections, front and back.
Mainshaft gear 6 sorts from rear successively to front, main shaft 5 is provided with Double-conical-surface lock ring type synchronizer 15 between one grade and intermediate gear, first single conical surface lock ring type synchronizer 14 is provided with between third gear and fourth gear, second single conical surface lock ring type synchronizer 13 is provided with between five grades and six shift of gears, the rear end of one grade of gear is provided with reverse gear, reverse gear connects reverse gear sliding sleeve 11, and the engage a gear stroke of synchronizer is 9.5mm.Tong Bu Qi Chi Grains and main shaft 5 pass through splined, synchronizer sliding sleeve is by splined synchromesh gear hub, synchronizer sliding sleeve rides and is provided with reverse shift fork 10, reverse shift fork 10 is handled by cab leverage, cab leverage comprises horizontal gear level 7, horizontal gear level 7 is connected with the shifting block 8 can followed it and rotate, shifting block 8 drives selector fork axle 9 to move by guide block 16, selector fork axle 9 drives reverse shift fork 10 to move, synchronizer sliding sleeve is with reverse shift fork 10 synchronizing moving, after the engagement of synchronizer sliding sleeve tooth, namely the adjustment of transmission speed ratio and outputting power is realized.
Working procedure of the present utility model is: the power of motor passes to the input shaft 1 of speed changer by clutch.Input shaft gear often engages with jack shaft driving gear 2, and by jack shaft 3 transmission, countershaft-gear 4 often engages with mainshaft gear 6, and mainshaft gear 6 dallies on main shaft 5.Because Tong Bu Qi Chi Grains and main shaft 5 pass through splined, synchronizer sliding sleeve is by splined Tong Bu Qi Chi Grains, reverse gear sliding sleeve 11 and reverse gear pass through splined, and reverse shift fork 10 straddles on synchronizer sliding sleeve, by cab leverage, rotate and handle horizontal gear level 7, shifting block 8 is driven to rotate, shifting block drives declutch shift shaft 9 to move by guide block 16, sliding selector shaft 9 moves and then drives reverse shift fork 10, synchronizer sliding sleeve moves with shift fork 10, when synchronizer sliding sleeve engages in conjunction with tooth with synchronizer, main shaft 5 is just integrated with mainshaft gear 6 one-tenth, and rotate and transferring power by certain speed ratio, last again through flange plate 12 outputting power.
The utility model compact structure, by the optimal design cogged to two axles, speed changer axial dimension reduces, weight saving, make speed changer from main tank housing forward end face to output flange ear end face length of installation be reduced to 736.7mm, centre distance is 108mm, and arrangement is more convenient, also increase significantly moment of torsion, test moment of torsion can reach 550Nm simultaneously.Owing to being provided with Double-conical-surface lock ring type synchronizer between one grade and intermediate gear, synchronous capacity is increased, lock in time shortens, and gear shifting force reduces, and shifts gears light.The utility model second gear speed ratio can reach more than 3.3, and ratio coverage is large, can meet light card and fuel-efficient, the economic demand of passenger vehicle.
Claims (7)
1. six grades of single countershaft transmissions, it is characterized in that: comprise the input shaft (1) being integrated with input gear, input gear often engages with the jack shaft driving gear (2) being arranged on jack shaft (3) front end, the top of jack shaft (3) is provided with main shaft (5), and the countershaft-gear (4) on jack shaft (3) often engages with the mainshaft gear (6) on main shaft (5) respectively, main shaft (5) rear end connects output flange (12);
Described mainshaft gear (6) sorts from rear successively to front, and main shaft (5) is provided with Double-conical-surface lock ring type synchronizer (15) between one grade and intermediate gear, first single conical surface lock ring type synchronizer (14) is provided with between third gear and fourth gear, second single conical surface lock ring type synchronizer (13) is provided with between five grades and six shift of gears, the rear end of one grade of gear is provided with the reverse gear connecting reverse gear sliding sleeve (11), synchronizer sliding sleeve connects main shaft (5) by Tong Bu Qi Chi Grains, synchronizer sliding sleeve rides and is provided with reverse shift fork (10), the adjustment of transmission speed ratio and outputting power is realized by handling reverse shift fork (10).
2. six grades of single countershaft transmissions according to claim 1, is characterized in that: described main shaft (5) front end is by being supported in input shaft (1) without outer ring roller bearing.
3. six grades of single countershaft transmissions according to claim 1 and 2, is characterized in that: described input shaft (1) is connected on mission case; Described jack shaft (3) front end is connected on mission case, and the rear end of jack shaft (3) is connected on bonnet housing; Described main shaft (5) rear end is connected on bonnet housing.
4. six grades of single countershaft transmissions according to claim 1, is characterized in that: described Tong Bu Qi Chi Grains is connected with main shaft (5) by spline, and reverse gear sliding sleeve (11) is connected with reverse gear by spline.
5. six grades of single countershaft transmissions according to claim 1 or 4, it is characterized in that: described reverse shift fork (10) is handled by cab leverage, cab leverage comprises horizontal gear level (7), horizontal gear level (7) is connected with the shifting block (8) can followed it and rotate, shifting block (8) drives selector fork axle (9) mobile by guide block (16), selector fork axle (9) drives reverse shift fork (10) mobile, synchronizer sliding sleeve is with reverse shift fork (10) synchronizing moving, after the engagement of synchronizer sliding sleeve, namely the adjustment of transmission speed ratio and outputting power is realized.
6. six grades of single countershaft transmissions according to claim 1, is characterized in that: described synchronizer engage a gear stroke is 9.5mm.
7. six grades of single countershaft transmissions according to claim 1, is characterized in that: described countershaft-gear (4) and jack shaft (3) adopt interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664308.1U CN204253759U (en) | 2014-11-07 | 2014-11-07 | A kind of six grades of single countershaft transmissions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664308.1U CN204253759U (en) | 2014-11-07 | 2014-11-07 | A kind of six grades of single countershaft transmissions |
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| Publication Number | Publication Date |
|---|---|
| CN204253759U true CN204253759U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420664308.1U Active CN204253759U (en) | 2014-11-07 | 2014-11-07 | A kind of six grades of single countershaft transmissions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195143A (en) * | 2016-08-31 | 2016-12-07 | 陕西法士特齿轮有限责任公司 | A kind of two grades of pure electric vehicles list duplex countershaft transmission |
-
2014
- 2014-11-07 CN CN201420664308.1U patent/CN204253759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195143A (en) * | 2016-08-31 | 2016-12-07 | 陕西法士特齿轮有限责任公司 | A kind of two grades of pure electric vehicles list duplex countershaft transmission |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |