CN101629618B - Multi-gear combined type transmission with prepositioned auxiliary box - Google Patents
Multi-gear combined type transmission with prepositioned auxiliary box Download PDFInfo
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- CN101629618B CN101629618B CN2009101045329A CN200910104532A CN101629618B CN 101629618 B CN101629618 B CN 101629618B CN 2009101045329 A CN2009101045329 A CN 2009101045329A CN 200910104532 A CN200910104532 A CN 200910104532A CN 101629618 B CN101629618 B CN 101629618B
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Abstract
The invention discloses a multi-gear combined type transmission with a prepositioned auxiliary box, comprising a main box and an auxiliary box, wherein the auxiliary box is prepositioned at the front end face of the main box, a main shaft of the auxiliary box is engaged with a transmission gear of a middle shaft of the main box by a shaft gear of the main shaft of the auxiliary box, and the power of an external engine is output to the middle shaft of the main box by the main shaft of the auxiliary box after the power of the external engine is transmitted to a shaft of the auxiliary box by a clutch. The invention adopts the mode of the prepositioned auxiliary box, diminishes the size of a box body of a gearbox, diminishes the length of an output shaft simultaneously, and increases the integral rigidity; the auxiliary box of the invention has a high-gear speed ratio and a low-gear speed ratio; and when the condition of a road is poor, an auxiliary gearbox is changed to low gear, which can increase the transmission ratio of a transmission system, improve the power state, thereby greatly increasing the traction force of a modification vehicle on the original basis and effectively enhancing the climbing ability of the vehicle.
Description
Technical field
The present invention relates to a kind of multi-gear combined type transmission with prepositioned auxiliary box.
Background technique
Along with The development in society and economy, automobile is more and more universal in the rural area, becomes the main transport facility in rural area and mountain area.The agricultural vehicle that becomes with domestic medium truck chassis refit is an example, in the bad mountain area of road condition, has the deadly defect of grade ability deficiency.
Desire guarantees that automobile has good grade ability, takes into account power character, Economy and acceleration, must enlarge the scope of transmission ratio and increase the gear number.Too complicated and be convenient to producing in serial form for the structure of avoiding speed changer, adopt combined mechanical transmission more.Promptly,, obtain the speed changer series of one group of different gear number, different drive ratios scope by changing the serial gear pair auxiliary transmission different with configuration based on one or two kind of 4～6 gear gearbox.At present, combined mechanical transmission has become the main pattern that automobile adopts.
Present secondary box of gearbox is arranged on the sidepiece or the rear portion of speed changer main tank more, difference according to its mounting point, its effect that reaches is also different, wherein, side is installed transmission inconvenience after the not enough and power taking of power because of power taking, overload takes place easily damage, rear-mounted installation is owing to shortened the speed changer outputting power to the distance that drives vehicle bridge, increased the inclination angle of chassis live axle, not only had influence on the driving safety of automobile, the lifting leeway to the automobile grade ability is not very big simultaneously.
Summary of the invention
In view of this, the invention provides a kind of multi-gear combined type transmission with prepositioned auxiliary box, it is preposition with odd-side, because odd-side has two grades of speed ratios of height, when road conditions is relatively poor, odd-side is changed low grade, can increase the power train velocity ratio, effectively improve the vehicle grade ability, improved dynamic regime simultaneously.
The purpose of this invention is to provide a kind of multi-gear combined type transmission with prepositioned auxiliary box, comprise main tank and odd-side, sliding sleeve or synchronizer that described main tank comprises main tank casing, main tank transmission shaft, is arranged on each grade gear on the main tank transmission shaft and cooperates with it, the below of described main tank transmission shaft is provided with main tank jack shaft, main tank jack shaft driving gear and all the other main tank countershaft-gears, and described main tank transmission shaft and main tank jack shaft all are arranged on the inside of main tank casing; The loam cake of described main tank transmission shaft top is provided with gear-change operation mechanism, described gear shift operation mechanism comprises each grade shift fork and adaptive with it each grade declutch shift shaft, described odd-side comprises one of odd-side, the odd-side main shaft, odd-side jack shaft and odd-side casing, one of described odd-side is provided with shaftgear of odd-side, described odd-side main shaft is provided with the speed change tooth, one of described odd-side is provided with the odd-side main shaft is concentric, described odd-side jack shaft is arranged on the below of main shaft, shaftgear of described odd-side, speed change tooth and odd-side jack shaft all are arranged in the odd-side housing, described odd-side also comprises the odd-side sliding sleeve that radially is provided with allocating slot and is used to stir the shifting fork device that the odd-side sliding sleeve moves, described odd-side sliding sleeve is arranged on the odd-side main shaft axle body between shaftgear of odd-side and the speed change tooth, described odd-side sliding sleeve is provided with in conjunction with tooth I, on the flank of tooth of shaftgear of described odd-side and speed change tooth corresponding be provided with the odd-side sliding sleeve suitable combine tooth II, described shifting fork device is arranged on the top of odd-side casing, described shifting fork device comprises shift fork, the underpart of described shift fork is arranged in the allocating slot, described odd-side jack shaft is provided with the duplex tooth, before the described duplex tooth, back tooth meshes with shaftgear of odd-side and speed change tooth respectively;
The preposition front-end face that is installed on main tank of described odd-side, described odd-side main shaft is meshed with main tank jack shaft driving gear by odd-side main shaft shaftgear, and the power of outer exports the main tank jack shaft to through the odd-side main shaft after clutch imports one of odd-side into.
The preposition front-end face that is installed on main tank of described odd-side, described odd-side main shaft and main tank transmission shaft are in transmission connection, and the power of outer exports the main tank transmission shaft to through the odd-side main shaft after clutch imports one of odd-side into;
Each grade gear on described all the other main tank countershaft-gears and the main tank transmission shaft often meshes.
Further, described is internal spline in conjunction with tooth I, and described is external splines in conjunction with tooth II;
Further, shaftgear of described odd-side is fixedlyed connected with the odd-side casing with needle bearing II by needle bearing I respectively with the speed change tooth:
Further, the number of teeth of a shaftgear of described odd-side is 9, and the nipper number of teeth of the duplex tooth that is engaged with is 21, and the number of teeth of described speed change tooth is 24, and the back tooth number of teeth of the duplex tooth that is engaged with is 24:
Further, described shifting fork device also comprises driving cylinder and the piston that connects successively, the corresponding setting with shift fork of described piston.
The invention has the beneficial effects as follows:
The present invention is directed to the particularly drawback of agricultural vehicle grade ability deficiency of existing automobile, adopt the preposition mode of odd-side, make the gear box size decreases, shortened the length of output shaft simultaneously, increased integral rigidity, enlarged the capacity of transmission gear ratio simultaneously;
Odd-side of the present invention has two grades of speed ratios of height, when road conditions is relatively poor, auxiliary transmission is changed low grade, can increase the power train velocity ratio, improve dynamic regime, make rectification car tractive force on former basis, increase 1.5～2 times, effectively promoted the grade ability of vehicle.
Description of drawings
Other advantages of the present invention, target, to set forth in the following description to a certain extent with feature, and to a certain extent,, perhaps can obtain instruction from the practice of the present invention based on being conspicuous to those skilled in the art to investigating hereinafter.Target of the present invention and other advantages can realize and obtain by following specification and claims.
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is a structural representation of the present invention;
Fig. 2 for the present invention along the A of Fig. 1 to schematic representation;
Fig. 3 is the odd-side structural representation.
Embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only for the present invention is described, rather than in order to limit protection scope of the present invention.
As depicted in figs. 1 and 2, the present invention is made up of five grades of basic trnasmission main tanks 10 and two grades of auxiliary transmission odd-sides 9, wherein, main tank 10 comprises main tank transmission shaft 101, reverse gear, low-grade gear, one grade of gear, intermediate gear, three-range transmission are housed respectively on the main tank transmission shaft, between low, reverse gear, be provided with sliding sleeve, one, between the intermediate gear, three, between the fourth gear, respectively sliding sleeve is set or synchronizer meshes.
Below main tank transmission shaft 101, be provided with main tank jack shaft 102, main tank jack shaft driving gear 103 and all the other main tank countershaft-gears, wherein, main tank jack shaft driving gear 103 and 22 engagements of odd-side main shaft shaftgear, all the other gears on the main tank jack shaft 102 respectively with main tank transmission shaft 101 on the engagement of corresponding shifting gear, main tank transmission shaft 101 and main tank jack shaft 102 all are arranged on the inside of main tank casing 10;
The loam cake of main tank transmission shaft 101 tops is provided with gear-change operation mechanism 104, and gear shift operation mechanism 104 comprises each grade shift fork and adaptive with it each grade declutch shift shaft.
As shown in Figure 3, odd-side comprises one 1 of odd-side, odd-side main shaft 2, odd-side jack shaft 3 and odd-side casing 4, the right-hand member that odd-side is one 1 is provided with shaftgear 11 of odd-side, odd-side main shaft 2 is provided with speed change tooth 21, and shaftgear 11 of odd-side is fixedlyed connected with odd-side casing 4 with needle bearing II 8 by needle bearing I 7 respectively with speed change tooth 21.
One 1 of odd-side and the 2 concentric settings of odd-side main shaft, odd-side jack shaft 3 is arranged on the below of odd-side main shaft 2, shaftgear 11 of odd-side, speed change tooth 21 and odd-side jack shaft 3 all are arranged in the odd-side casing 4, odd-side also comprises the odd-side sliding sleeve 5 that radially is provided with allocating slot and is used to stir the shifting fork device 6 that the odd-side sliding sleeve moves, odd-side sliding sleeve 5 is arranged on the axle body of the odd-side main shaft 2 between shaftgear 11 of odd-side and the speed change tooth 21, odd-side sliding sleeve 5 is provided with in conjunction with tooth I, on the flank of tooth of shaftgear 11 of odd-side and speed change tooth 21 corresponding be provided with odd-side sliding sleeve 5 suitable combine tooth II, in the present embodiment, adopt internal spline in conjunction with tooth I, adopt external splines in conjunction with tooth II, shifting fork device 6 is arranged on the top of odd-side casing, shifting fork device 6 comprises shift fork 61, the underpart of shift fork 61 is arranged in the allocating slot, shifting fork device also comprises driving cylinder 62 and the piston 63 that connects successively, piston 63 and shift fork 61 corresponding settings.
The odd-side jack shaft is provided with duplex tooth 31, and the front and rear teeth of duplex tooth 31 meshes with shaftgear 11 of odd-side and speed change tooth 21 respectively;
The preposition front-end face that is installed on main tank of odd-side of the present invention, odd-side main shaft shaftgear 22 and 103 engagements of main tank jack shaft driving gear, the power of outer exports the main tank jack shaft to through the odd-side main shaft after clutch imports one of odd-side into.
Main tank gearshift transmission working procedure of the present invention is as follows: the power of motor is delivered to main tank jack shaft 102 by clutch by odd-side, because odd-side main shaft shaftgear 22 drives 102 transmissions of main tank jack shaft with the 103 normal engagements of jack shaft driving gear, all the other gears on the jack shaft 102 and each grade gear on the main tank transmission shaft 101 often mesh, each grade gear dallies on the main tank transmission shaft, because main tank sliding sleeve 105 and main tank transmission shaft 101 splined, and selector fork 1041 is embedded in the allocating slot on the main tank sliding sleeve external diameter, as will change third gear the time, mobile selector fork axle drives selector fork 1041, main tank sliding sleeve 105 will move with shift fork 1041, when the main tank sliding sleeve in conjunction with tooth (external splines) and transmission shaft three-range transmission combine tooth (internal spline) in conjunction with the time, main tank transmission shaft and transmission shaft three-range transmission become one and the transferring power by certain speed ratio transmission.
In the present embodiment, the number of teeth of a shaftgear 22 of odd-side is 19, and the nipper number of teeth of the duplex tooth 31 that is engaged with is 21, and the number of teeth of speed change tooth is 24, and the back tooth number of teeth of the duplex tooth 31 that is engaged with is 24.The modulus of each shifting gear and the number of teeth are existing regular size.
When selecting low grade, promote shift fork 61 by piston 63, drive combining after the tooth combination of odd-side sliding sleeve 5 and speed change tooth 21, the transmission of power of speed changer is: first 1 → duplex tooth, 31 → main shaft 2, by main shaft 2 power is input to the basic trnasmission main tank, when selecting 5 grades, the gearbox speed ratio of this moment is i
Low=21 * 24 ÷ 19 ÷ 19=1.396.
Select when high-grade, when piston 63 promotes shift forks 61, drive combining after the tooth combination of sliding sleeve 5 and first shaftgear 11, the transmission of power of speed changer is: first 1 → main shaft 2.By main shaft 2 power is input to the basic trnasmission main tank, when selecting 5 grades, the gearbox speed ratio i of this moment
High=1.
Because the auxiliary transmission of odd-side has two grades of speed ratios of height, the speed ratio of the basic trnasmission output of main tank has also just increased by one times, and is as shown in the table: (modulus of each shifting gear and the number of teeth are existing regular size).
| Gear | 1 grade | 2 grades | 3 |
4 grades | 5 grades | Reverse gear |
| i High | 7.31 | 4.31 | 2.45 | 1.54 | 1 | 7.66 |
| i Low | 10.21 | 6.02 | 3.42 | 2.15 | 1.4 | 10.69 |
When the automobile full load, because road adhesion much larger than the power train driving torque, so when road conditions is relatively poor, change low grade by auxiliary transmission, has increased the power train velocity ratio, strengthen the vehicle grade ability simultaneously, improve dynamic regime.Make rectification car tractive force increase more than 1.5 times on the former basis, the present invention can assemble NF140 speed changer chassis automobile, Yuchai 4100, willow send out 4105, in the cloud 4100, motors such as bearing 4105, tin bavin 4113, tin bavin 4110, conscientiously solve the problem that is short of power, its effect may match in excellence or beauty with 6105 motors.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. multi-gear combined type transmission with prepositioned auxiliary box, comprise main tank and odd-side, sliding sleeve or synchronizer that described main tank comprises main tank casing, main tank transmission shaft, is arranged on each grade gear on the main tank transmission shaft and cooperates with it, the below of described main tank transmission shaft is provided with main tank jack shaft, main tank jack shaft driving gear and all the other main tank countershaft-gears, and described main tank transmission shaft and main tank jack shaft all are arranged on the inside of main tank casing; The loam cake of described main tank transmission shaft top is provided with gear-change operation mechanism, described gear shift operation mechanism comprises each grade shift fork and adaptive with it each grade declutch shift shaft, described odd-side comprises one of odd-side, the odd-side main shaft, odd-side jack shaft and odd-side casing, one of described odd-side is provided with shaftgear of odd-side, described odd-side main shaft is provided with the speed change tooth, one of described odd-side is provided with the odd-side main shaft is concentric, described odd-side jack shaft is arranged on the below of main shaft, shaftgear of described odd-side, speed change tooth and odd-side jack shaft all are arranged in the odd-side housing, it is characterized in that: described odd-side also comprises the odd-side sliding sleeve that radially is provided with allocating slot and is used to stir the shifting fork device that the odd-side sliding sleeve moves, described odd-side sliding sleeve is arranged on the odd-side main shaft axle body between shaftgear of odd-side and the speed change tooth, described odd-side sliding sleeve is provided with in conjunction with tooth I, on the flank of tooth of shaftgear of described odd-side and speed change tooth corresponding be provided with the odd-side sliding sleeve suitable combine tooth II, described shifting fork device is arranged on the top of odd-side casing, described shifting fork device comprises shift fork, the underpart of described shift fork is arranged in the allocating slot, described odd-side jack shaft is provided with the duplex tooth, before the described duplex tooth, back tooth meshes with shaftgear of odd-side and speed change tooth respectively;
The preposition front-end face that is installed on main tank of described odd-side, described odd-side main shaft is meshed with main tank jack shaft driving gear by odd-side main shaft shaftgear, and the power of outer exports the main tank jack shaft to through the odd-side main shaft after clutch imports one of odd-side into;
Each grade gear on described all the other main tank countershaft-gears and the main tank transmission shaft often meshes.
2. multi-gear combined type transmission with prepositioned auxiliary box according to claim 1 is characterized in that: described is internal spline in conjunction with tooth I, and described is external splines in conjunction with tooth II.
3. multi-gear combined type transmission with prepositioned auxiliary box according to claim 2 is characterized in that: shaftgear of described odd-side is fixedlyed connected with the odd-side casing with needle bearing II by needle bearing I respectively with the speed change tooth.
4. according to the described multi-gear combined type transmission with prepositioned auxiliary box of the arbitrary claim of claim 1 to 3, it is characterized in that: the number of teeth of a shaftgear of described odd-side is 9, the nipper number of teeth of the duplex tooth that is engaged with is 21, the number of teeth of described speed change tooth is 24, and the back tooth number of teeth of the duplex tooth that is engaged with is 24.
5. multi-gear combined type transmission with prepositioned auxiliary box according to claim 1 is characterized in that: described shifting fork device also comprises driving cylinder and the piston that connects successively, the corresponding setting with shift fork of described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101045329A CN101629618B (en) | 2009-08-03 | 2009-08-03 | Multi-gear combined type transmission with prepositioned auxiliary box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101045329A CN101629618B (en) | 2009-08-03 | 2009-08-03 | Multi-gear combined type transmission with prepositioned auxiliary box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101629618A CN101629618A (en) | 2010-01-20 |
| CN101629618B true CN101629618B (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101045329A Expired - Fee Related CN101629618B (en) | 2009-08-03 | 2009-08-03 | Multi-gear combined type transmission with prepositioned auxiliary box |
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| Country | Link |
|---|---|
| CN (1) | CN101629618B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374277A (en) * | 2010-08-13 | 2012-03-14 | 中国第一汽车集团公司 | Two-file transmission case of electric motor coach |
| CN107654589B (en) * | 2017-10-25 | 2020-04-10 | 盐城市步高汽配制造有限公司 | Two-gear intermediate shaft transmission structure and gear shifting method thereof |
| CN114738392A (en) * | 2022-03-28 | 2022-07-12 | 三一重机有限公司 | Transmission mechanism, engine and working machine |
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2009
- 2009-08-03 CN CN2009101045329A patent/CN101629618B/en not_active Expired - Fee Related
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| CN101629618A (en) | 2010-01-20 |
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Granted publication date: 20111228 Termination date: 20130803 |