CN2895883Y - Multi-shift combined secondary-box three middle shaft automative speed variator - Google Patents
Multi-shift combined secondary-box three middle shaft automative speed variator Download PDFInfo
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- CN2895883Y CN2895883Y CN 200620078416 CN200620078416U CN2895883Y CN 2895883 Y CN2895883 Y CN 2895883Y CN 200620078416 CN200620078416 CN 200620078416 CN 200620078416 U CN200620078416 U CN 200620078416U CN 2895883 Y CN2895883 Y CN 2895883Y
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- jack
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Abstract
The utility model relates to a multi-shift combined secondary-box three middle shaft automatic speed variator, which is composed by a main and an auxiliary box. Wherein, the main box comprises the structures of the prior speed variator: a first shaft and a first shaft gear, a second axis and each crosspiece gear and a sliding sleeve or a synchronizer, two symmetric middle shafts, drive gear of the middle shafts and the other countershaft gear which mesh with the each crosspiece gear of the second axis correspondently at the two sides of the second shaft; a shift control gear is provided on the upper cover, and the first, second and middle shaft are connected on the box body of the speed variator respectively; the auxiliary box comprises the prior auxiliary-box spindle 25, driving gear, reduction gear, synchronizer, three middle shafts 19 around the spindle, a shift control mechanism which is equipped on the back cover of the auxiliary box; the three jackshafts is distributed in equidistance around the auxiliary-box spindle parallel, and one middle shaft of the main and the auxiliary box are concentric; the output end of the auxiliary-box spindle connects the flange. Compared with the speed variator of the original double middle shaft, the utility model has the advantages of more stable transmission, less noise, longer service life gear and bigger carrying capacity.
Description
Technical field
The utility model belongs to automobile mechanical transmissions technical field, and exactly it is a kind of multi-shift combined pair-box three jack shaft automotive transmissions.
Background technique
How improving the bearing capacity of mechanical transmission, is an important topic in the design of Hyundai Motor transmission system.In the design of heavy-duty car mechanical transmission, adopt several identical jack shafts, make power realize shunting, to reach the bearing capacity that improves gear transmission and transmission assembly, be the most tangible technology of effect in the current heavy-duty car mechanical transmission design.Twin countershaft transmission has successfully been realized this purpose, and certain market share is arranged.But, continuous improvement along with the highway transport condition, the proportion that the automobile transportation accounts for whole communications and transportation improves day by day, large-tonnage transport vehicle, container tractor, hoist require bigger for the driving torque of speed changer, speed range requires wider, usability is more reliable, and cost requirement is lower.In order to realize this purpose, if require input torque to surpass 2200Nm for present two jack shaft mechanical transmissions, Zhou length will increase so, cost up, and reliability also reduces.So, having influenced the expansion of twin countershaft transmission in the heavy-duty car field uses.
Summary of the invention
The purpose of this utility model is the deficiency that exists in the existing multi-gear combined type twin countershaft transmission technology in order to overcome, a kind of multi-shift combined pair-box three jack shaft structures are provided, are used for high-power, high pulling torque, multi-gear combined type speed-changing gear box that gear capacity is stronger.
The utility model is realized with following technical proposal: these multi-shift combined pair-box three jack shaft automotive transmissions, it is made up of major and minor case, wherein main tank comprises one and a shaftgear in the existing multi-gear combined type twin countershaft transmission, two, two each grade gears and sliding sleeve or synchronizer, there is the gear on two symmetrical jack shafts, jack shaft driving gear and all the other jack shafts two both sides, a jack shaft driving gear and a shaftgear often mesh, and all the other gears and two shaftgears often mesh on the jack shaft; Cover device on the main tank of two tops the selector device that is made of its corresponding each grade declutch shift shaft of each grade shift fork is arranged, one, two and jack shaft are connected on the mission case, described synchronizer can be lock ring type or pin-type synchronizer, it also can be single conical surface lock ring type synchronizer, can also be many conical surfaces lock ring type synchronizer, described many conical surfaces lock ring type synchronizer be bipyramid face lock ring type or three conical surface lock ring type synchronizers.Odd-side mainly comprises on odd-side main shaft in the existing multi-gear combined type twin countershaft transmission, actuation gear, the main shaft reduction gear, synchronizer, the selector device that has around the main shaft jack shaft, auxiliary box's rear cover device to have the cylinder by shift fork and declutch shift shaft and shift fork to constitute; Jack shaft around the particularly described odd-side main shaft has three, their parallel and equidistant being evenly distributed on around the odd-side main shaft, odd-side jack shaft driving gear and the engagement of its actuation gear, odd-side countershaft-gear and reduction gear engagement, the coupling flange, output end dish of odd-side main shaft.Two jack shaft decentraction that three jack shafts and the main tank of the concentric or odd-side of a jack shaft in two jack shafts of a jack shaft and main tank are arranged in three jack shafts of odd-side.Synchronizer in the odd-side can be lock ring type or pin-type synchronizer, also can be single conical surface lock ring type synchronizer, can also be many conical surfaces lock ring type synchronizer, and described many conical surfaces lock ring type synchronizer is bipyramid face lock ring type or three conical surface lock ring type synchronizers.
The utlity model has following advantage: 1, the odd-side of multi-shift combined pair-box three jack shaft automotive transmissions adopts three jack shafts, three parallel and equidistant being evenly distributed on around the odd-side main shaft of jack shaft.Power is diverted on two jack shafts of main tank after an input, is pooled to two outputs then, so every jack shaft only transmits 1/2 moment of torsion; Odd-side also is so, but every jack shaft only transmits 1/3 moment of torsion, thus the width of odd-side operative gear can attenuate, axial dimension can shorten, diameter of axle size can diminish, and has also improved the overall bearing capacity of odd-side simultaneously greatly.2, because odd-side adopts three jack shaft structures, and it is more steady to make this speed changer and original twin countershaft transmission compare transmission, and noise is littler, gear life is longer.
Description of drawings
Fig. 1 is two overall structure sectional views (not showing the another one countershaft assembly of main tank, two other countershaft assembly of odd-side among the figure) that use the sliding sleeve engagement of the utility model main tank.
Fig. 2 is that the position between two of the utility model main tanks and two jack shafts and three jack shafts of odd-side concerns schematic representation.
Fig. 3 is the partial structurtes sectional view that two of the utility model main tanks use the engagement of bipyramid face lock ring type synchronizer.
Embodiment
In conjunction with the accompanying drawings overall structure of the present utility model and working procedure are described specifically:
Description about the exemplary entity of this model utility: as shown in Figure 1, described multi-shift combined pair-box three jack shaft automotive transmissions, it is made up of five grades of (climbing shelves for one) basic trnasmission main tanks and two grades of auxiliary transmission odd-sides.The same with the two jack shaft automotive transmissions of existing multi-gear combined type, the main tank of these odd-side three jack shaft automotive transmissions includes one 1, its right-hand member connects a shaftgear 38 according to this, two spools 40; 35, two three-range transmissions 36 of 30, two low-grade gear 33, two intermediate gears of 32, two one grade of gears of two reverse gears are housed respectively on two; Between low, reverse gear, one, between the intermediate gear, three, between the fourth gear respectively device have sliding sleeve 39 to mesh; See Fig. 3, one, between the intermediate gear, three, also can adopt synchronizer 39 to mesh between the fourth gear, described synchronizer can be lock ring or pin-type synchronizer, it also can be single conical surface lock ring type synchronizer, can also be many conical surfaces lock ring type synchronizer, described many conical surfaces lock ring type synchronizer be bipyramid face lock ring type or three conical surface lock ring type synchronizers.Above sliding sleeve, promptly main tank on cover the main tank shift operating device that is made of low, reverse speed fork 31,, second gear shift fork 34, three, fourth gear shift fork 37 and corresponding each grade declutch shift shaft and shifting block be installed; Two both sides have two symmetrical and with two parallel jack shafts 5, jack shaft first gear is a driving gear 6, a driving gear and a shaftgear 38 often mesh, all the other gears 11,10,9,8 often mesh with two respective gears respectively on the jack shaft; One, two and jack shaft are connected on the main box body by bearing 2,29,4 and 15 respectively.The same with the two jack shaft automotive transmissions of existing multi-gear combined type, the odd-side of these odd-side three jack shaft automotive transmissions is mainly by on odd-side main shaft 25, odd-side jack shaft driving gear 18, the odd-side main shaft odd-side main shaft reduction gear 22 and pin-type synchronizer 23 being arranged, this synchronizer can be lock ring type or pin-type synchronizer, it also can be single conical surface lock ring type synchronizer, can also be many conical surfaces lock ring type synchronizer, described many conical surfaces lock ring type synchronizer be bipyramid face lock ring type or three conical surface lock ring type synchronizers.The odd-side selector device that is made of shift fork and declutch shift shaft 28 and cylinder 27 is installed, by the cylinder piston shift fork on the auxiliary box's rear cover 20; Consult Fig. 2, two 40 of main tanks are concentric with odd-side main shaft 25, three jack shafts 19 are arranged around the odd-side main shaft, they are parallel to each other and equidistant being evenly distributed on around the odd-side main shaft, in three jack shafts of odd-side one with two jack shafts 5 of main tank in one concentric, three jack shafts of odd-side and two jack shafts of main tank also can decentraction; Odd-side jack shaft driving gear 18 and actuation gear 24 engagements, odd-side countershaft-gear and reduction gear 22 engagements.The odd-side main shaft is supported on the bonnet housing 20 by combination bearing 41, and the odd-side jack shaft is connected on odd-side housing 16 and the bonnet housing 20 by bearing 17,21 respectively.The coupling flange, output end dish 26 of odd-side main shaft.Odd-side actuation gear 24 is connected on the odd-side housing 16 by bearing 29.Also comprise existing reverse gear jack shaft 12, bearing 13 and reverse gear countershaft-gear thereof among the figure.
The working procedure of multi-shift combined pair-box three jack shaft automotive transmissions (is example with the third gear): see shown in Figure 1ly, the power of motor is given one 1 and a shaftgear 38 of main tank by clutch transmits; One shaftgear 38 drives jack shaft 5 transmissions with the 6 normal engagements of jack shaft driving gear, and countershaft-gear 8 and two shaftgears 36 often mesh, and two shaftgears 36 dally on two and link to each other with sliding sleeve 39 external spliness by spline.Because sliding sleeve 39 and two 40 splined, and reverse shift fork 37 straddles on the sliding sleeve, mobile sliding selector shaft drives reverse shift fork 37, sliding sleeve moves with shift fork, when sliding sleeve in conjunction with tooth (external splines) and two shaftgears 36 combine tooth (internal spline) in conjunction with the time, two become one with two shaftgears and rotate and transferring power by certain speed ratio, and give odd-side actuation gear 24 with transmission of power, by dynamic branch, moment of torsion is passed to odd-side jack shaft driving gear 18 respectively; Gear 42 on the odd-side jack shaft 19 often meshes with odd-side main shaft reduction gear 22, three jack shafts 19 of odd-side converge to power odd-side main shaft reduction gear 22 again, tooth cover on reduction gear 22 and the odd-side pin-type synchronizer 23 meshes and power is passed to odd-side main shaft 25, passes through flange plate 26 outputting powers again.When changing reverse gear, situation is with above-mentioned consistent, and reverse shift fork 31 is promoted sliding sleeve to the right can be finished.
When two grades of auxiliary transmission odd-sides were positioned at high-grade district, the power of two outputs of main tank was given odd-side main shaft 25 by the engagement of the cover of the tooth on odd-side actuation gear 24 and the odd-side pin-type synchronizer 23 and with transmission of power, again through flange plate 26 outputting powers; When being positioned at low-grade the district, the power of two outputs of main tank passes to odd-side jack shaft driving gear 18 by odd-side actuation gear 24, gives odd-side main shaft 25 through output flange 26 outputting powers by the engagement of the cover of the tooth on odd-side reduction gear 22 and the synchronizer 23 and with transmission of power again.The odd-side synchronizer gear sleeve promotes 28 manipulations of odd-side shift fork by the inner carrier motion of odd-side cylinder 27.
Claims (4)
1, a kind of multi-shift combined pair-box three jack shaft automotive transmissions, it is made up of major and minor case, wherein main tank comprises (1) and the shaftgear (38) in the two jack shaft automotive transmissions of existing multi-gear combined type, two (40), two each grade gears and sliding sleeve or synchronizer (39), there is jack shaft (5), jack shaft driving gear (6) and all the other countershaft-gears of two symmetries two both sides, a jack shaft driving gear and a shaftgear often mesh, and all the other gears and two shaftgears often mesh on the jack shaft; Covering device on two tops has the selector device that is made of its corresponding each grade declutch shift shaft of each grade shift fork, and one, two and jack shaft are connected on the mission case; Odd-side comprises on odd-side main shaft (25) in the two jack shaft automotive transmissions of existing multi-gear combined type, actuation gear (24), the main shaft reduction gear (22), synchronizer (23), around the main shaft jack shaft (19) is arranged, device has the selector device by cylinder (27) formation of shift fork and declutch shift shaft (28) and shift fork on the auxiliary box's rear cover; It is characterized in that described odd-side main shaft (25) jack shaft (19) on every side has three, their parallel and equidistant being evenly distributed on around the odd-side main shaft, odd-side jack shaft driving gear (18) and actuation gear (24) engagement, odd-side countershaft-gear and reduction gear (22) engagement, the coupling flange, output end dish (26) of odd-side main shaft.
2, multi-shift combined pair-box three jack shaft automotive transmissions according to claim 1 is characterized in that having in three jack shafts (19) of odd-side two jack shafts (5) decentraction of three jack shafts (19) with the main tank of the concentric or odd-side of a jack shaft in two jack shafts (5) of a jack shaft and main tank.
3, multi-shift combined pair-box three jack shaft automotive transmissions according to claim 1, it is characterized in that described synchronizer (23) or (39) can be lock ring type or pin-type synchronizer, also can be single conical surface lock ring type synchronizer, can also be many conical surfaces lock ring type synchronizer.
4, multi-shift combined pair-box three jack shaft automotive transmissions according to claim 3 is characterized in that described many conical surfaces lock ring type synchronizer is bipyramid face lock ring type or three conical surface lock ring type synchronizers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078416 CN2895883Y (en) | 2006-02-20 | 2006-02-20 | Multi-shift combined secondary-box three middle shaft automative speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078416 CN2895883Y (en) | 2006-02-20 | 2006-02-20 | Multi-shift combined secondary-box three middle shaft automative speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895883Y true CN2895883Y (en) | 2007-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078416 Expired - Lifetime CN2895883Y (en) | 2006-02-20 | 2006-02-20 | Multi-shift combined secondary-box three middle shaft automative speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895883Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025217B (en) * | 2006-02-20 | 2012-06-27 | 陕西法士特齿轮有限责任公司 | Multi-shift combined pair-box three-middle-shaft automobile speed changer |
| CN102943864A (en) * | 2012-10-29 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission for passenger car |
| CN104930135A (en) * | 2015-06-16 | 2015-09-23 | 吉林大学 | Four-gear assist transmission and gear shifting process control method thereof |
-
2006
- 2006-02-20 CN CN 200620078416 patent/CN2895883Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025217B (en) * | 2006-02-20 | 2012-06-27 | 陕西法士特齿轮有限责任公司 | Multi-shift combined pair-box three-middle-shaft automobile speed changer |
| CN102943864A (en) * | 2012-10-29 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission for passenger car |
| CN104930135A (en) * | 2015-06-16 | 2015-09-23 | 吉林大学 | Four-gear assist transmission and gear shifting process control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20070502 Effective date of abandoning: 20120627 |