CN202646553U - Six-speed manual transmission - Google Patents

Six-speed manual transmission Download PDF

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Publication number
CN202646553U
CN202646553U CN 201220297403 CN201220297403U CN202646553U CN 202646553 U CN202646553 U CN 202646553U CN 201220297403 CN201220297403 CN 201220297403 CN 201220297403 U CN201220297403 U CN 201220297403U CN 202646553 U CN202646553 U CN 202646553U
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CN
China
Prior art keywords
gear
synchronizers
shaft
driven
gears
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Expired - Lifetime
Application number
CN 201220297403
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Chinese (zh)
Inventor
张会文
王有刚
张书光
赵光瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haima Motor Corp
Haima New Energy Vehicle Co Ltd
Original Assignee
HAIMA BUSINESS AUTOMOBILE CO Ltd
HAIMA CAR CO Ltd
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Priority to CN 201220297403 priority Critical patent/CN202646553U/en
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Publication of CN202646553U publication Critical patent/CN202646553U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a six-speed manual transmission. An output shaft in the transmission is completely fixed on a rear shell, an intermediate shaft is fixed on a front shell and the rear shell, an input shaft is fixed on the front shell and the output shaft, three bearings are not installed on an intermediate shell which is fixedly connected with the front shell and the rear shell through bolts, thus the rigidity of the shells is improved; an integrated gear-selecting and shifting control assembly is arranged on the intermediate shell, thus the assembly difficulty is lowered; and a gear I and gear II synchronizer, a gear III and gear IV synchronizer and a gear V and gear VI synchronizer as well as a drive gear and a driven gear matched with the gear I and gear II synchronizer, the gear III and gear IV synchronizer and the gear V and gear VI synchronizer realize six-gear speed regulation, thus the high-speed distribution precision and the gear switching sensitivity are improved. By adopting the transmission provided by the utility model, on the premise of improving the high-speed distribution precision and the gear switching sensitivity, the rigidity of the shells can be improved, and the assembly difficulty is lowered.

Description

A kind of six-speed manual speed changer
Technical field
The utility model relates to automobile technical field, particularly a kind of six-speed manual speed changer.
Background technique
At present, the minicar on the Domestic market adopts five fast manual transmissions mostly.Fig. 1 is the plan view of existing five fast manual transmissions.Fig. 2 is the structural representation of existing five fast manual transmissions.Now in conjunction with Fig. 1 and Fig. 2, existing structure without fast manual transmission is described, specific as follows:
Existing five fast manual transmissions comprise: output shaft 1, rear case 2, front bearing, output shaft 3, often nibble driven gear 4, three or four gear synchronizers 5, middle shell 6, three gear driving gears 7, five gear synchronizers 8, five gear driving gears 9, two gear driving gears 10, driving gear 11 reverses gear, idle pulley 12, one gear driving gear 13, front case 14, input shaft 15, front bearing, input shaft 16, jack shaft fore bearing 17, one gear driven gear 18, one or two gear synchronizer and the driven gears 19 that reverse gear, two gear driven gears 20, five gear driven gears 21, three gear driven gears 22, often nibble driving gear 23, jack shaft rear bearing 24, jack shaft 25, rear bearing, output shaft 26, gear selection mechanism 27 and gearshift 28.
Wherein, output shaft 1 is fixed on the rear case 2 by rear bearing, output shaft 26, is fixed on the middle shell 6 by front bearing, output shaft; Input shaft 15 is fixed in the end that output shaft 1 is fixed in middle shell 6 by bearing, is fixed on the front case 14 by front bearing, input shaft 16; Jack shaft 25 is fixed on the rear case 2 by the jack shaft rear bearing, is fixed on the front case 14 by jack shaft fore bearing 17; Three or four gear synchronizers 5 and five gear synchronizers 8 are installed on the input shaft 15, and one or two gear synchronizers and the driven gear 19 that reverses gear are installed on the jack shaft 25; By in arbitrary driving gear and the every pair of gear train that corresponding driven gear forms, if one of them gear is positioned on wherein axle of input shaft 15 and jack shaft 25, then another gear is installed on another root axle of input shaft 15 and jack shaft 25 by needle bearing, such as: a gear driving gear 13 is positioned on the input shaft 15, consist of one of a pair of gear train with a gear driving gear 13 and keep off driven gear 18 when meshing with a gear driving gear 13, be installed on the jack shaft 25 by needle bearing; Two gear driving gears 10 are positioned on the input shaft 15, consist of two of a pair of gear train with two gear driving gears 10 and keep off driven gears 20 when keeping off driving gears 10 engagements with two, are installed on the jack shaft 25 by needle bearing; Five gear driven gears 21 are positioned on the jack shaft 25, when keeping off driving gears 9 and 21 engagement of five gear driven gears with five of a pair of gear train of five gear driven gears, 21 formations, are installed on the input shaft 15 by needle bearing; Three gear driven gears 22 are positioned on the jack shaft 25, when keeping off driving gears 7 and 22 engagement of three gear driven gears with three of a pair of gear train of three gear driven gears, 22 formations, are installed on the input shaft 15 by needle bearing; Often nibble driven gear 4 and be positioned on the input shaft 15, often nibble driving gear 23 and be positioned on the jack shaft 25; Gear selection mechanism 27 and gearshift 28 adopt separation structure, need to be installed on respectively on the middle shell 6, and assembly process is comparatively loaded down with trivial details, and the shifting effect is still waiting further improvement.
Existing five fast manual transmissions more and more can't satisfy the requirement of country's discharging and fuel economy regulation, need to improve in the sensitivity of Speed Ratio Distribution precision and gear switching, and the mode that is connected and fixed of three axles of existing five fast manual transmissions has reduced the rigidity of housing, the gear selecting structure of separation structure and the assembly process of gear shifting structure are comparatively loaded down with trivial details, and the shifting effect of existing five fast manual transmissions is still waiting further raising.
The model utility content
In view of this, the purpose of this utility model is to provide a kind of six-speed manual speed changer, and this speed changer can improve the rigidity of housing under the prerequisite of the sensitivity that improves the switching of Speed Ratio Distribution precision and gear, simplify the difficulty of assembling.
For achieving the above object, the technical solution of the utility model specifically is achieved in that
A kind of six-speed manual speed changer, this speed changer comprise front case (48), middle shell (55) and rear case (61), and this speed changer comprises:
Output shaft (31) is fixed in rear case (61) by rear bearing, output shaft (32) and front bearing, output shaft (33), and an end of close middle shell (55) comprises often nibbles driven gear (34);
Input shaft (47), be fixed in front case (48) by front bearing, input shaft (46), an end that stretches into rear case (55) is installed on the output shaft (31), direction along rear case (61) to front case (48) is equiped with three or four gear synchronizers (36), three gear driving gears (37), six gear driving gears (38), five or six gear synchronizers (39), five gear driving gear (40) and the driving gears that reverse gear (42) successively, and input shaft (47) comprises two gear driving gears (41) and a gear driving gear (45);
Jack shaft (58), be fixed on the rear case (61) by jack shaft rear bearing (60), be fixed on the front case (18) by jack shaft fore bearing (49), direction along middle shell (55) to front case (48) is equiped with two gear driven gears (53), one or two gear synchronizers (51) and a gear driven gear (50) successively, and jack shaft (58) comprises often nibbles driving gear (59), three gear driven gears (57), six gear driven gears (56) and five gear driven gears (54);
Shifting operation assembly (69), be installed in middle shell (55), be connected and fixed on one or two on one or the two gear fork shafts (64) by bearing and keep off shift forks (63), be fixed in three or four gear shift forks (62) on three or the four gear fork shafts (65), be fixed in five or six gear shift forks (67) on five or six gears fork shafts (66) and be fixed in back fork (68) on the reverse gear shaft (44), by stirring one or two gear shift forks (63), three or four gear shift forks (62), five or six gear shift fork (67) or back forks (68) are controlled one or two gear fork shafts (64), three or four gear fork shafts (65), the movement of five or six gear fork shafts (66) or reverse gear shaft (44);
Described one or two gear fork shafts (64) are installed in one or two gear synchronizers (51); Described three or four gear fork shaft (65) installings and three or four gear synchronizers (36); Described five or six gear fork shafts (66) are installed in five or six gear synchronizers (39); Described reverse gear shaft (44) is installed in idle pulley (43);
The driven gear (52) that reverses gear, the external toothing and the driving gear that reverses gear (42) engagement that comprise with one or two gear synchronizers (51).
In the above-mentioned speed changer, described three gear driving gears (37) are installed in input shaft (47) by oil groove (70),
And/or described five gear driving gears (40) are installed in input shaft (47) by oil groove (70).
In the above-mentioned speed changer, a described gear driven gear (50) is installed in jack shaft (58) by oil groove (70),
And/or described two gear driven gears (53) are installed in jack shaft (58) by oil groove (70).
In the above-mentioned speed changer, the end that described input shaft (47) stretches into rear case (55) is installed on the described output shaft (31) by needle bearing (35).
In the above-mentioned speed changer, described one or two gear synchronizers (51) are under the control of one or two gear fork shafts (64), slide into the position of the synchronous gear ring engagement that one or two external toothings that comprise of gear synchronizers (51) and a gear driven gear (50) comprise along jack shaft (58), perhaps slide into the external toothing that one or two gear synchronizers (51) comprise along jack shaft (58) and keep off the position that driven gears (53) mesh with two.
In the above-mentioned speed changer, described three or four gear synchronizers (36) are under the control of three or four gear fork shafts (65), slide into the position of the synchronous gear ring engagement that three or four external toothings that comprise of gear synchronizers (36) and three gear driving gears (37) comprise along input shaft (47), perhaps slide into external toothing that three or four gear synchronizers (36) comprise and the position of often nibbling synchronous gear ring that driven gear (34) comprises and meshing along input shaft (47).
In the above-mentioned speed changer, described five or six gear synchronizers (39) are under the control of five or six gear fork shafts (66), slide into the position of the synchronous gear ring engagement that five or six external toothings that comprise of gear synchronizers (39) and five gear driving gears (40) comprise along input shaft (47), perhaps slide into external toothing and six that five or six gear synchronizers (39) comprise along input shaft (47) and keep off the position that synchronous gear ring that driving gears (38) comprise meshes.
In the above-mentioned speed changer, described idle pulley (43) slides into the driving gear that reverses gear (42) and is installed in the position of the driven gear that reverses gear (52) engagement of the external toothing engagement that one or two gear synchronizers (51) comprise along reverse gear shaft (44) under the control of back fork (68).
As seen from the above technical solutions, the utility model provides a kind of six-speed manual speed changer, output shaft in this speed changer is completely fixed on rear case, jack shaft is fixed on front case and the rear case, and input shaft is fixed on front case and the output shaft, above-mentioned three bearings all are not installed on the middle shell that is connected and fixed by bolt and front case and rear case, improved the rigidity of housing, be equiped with integrated shifting operation assembly on the middle shell, simplified the difficulty of assembling, one or two gear synchronizers, driving gear and driven gear that three or four gear synchronizers and five or six gear synchronizers are mated, the six gear speed that realized are regulated, the sensitivity that raising Speed Ratio Distribution precision and gear switch.Adopt speed changer of the present utility model, under the prerequisite of the sensitivity that improves the switching of Speed Ratio Distribution precision and gear, can improve the rigidity of housing, simplify the difficulty of assembling.
Description of drawings
Fig. 1 is the plan view of existing five fast manual transmissions.
Fig. 2 is the structural representation of existing five fast manual transmissions.
Fig. 3 is the plan view of the utility model six-speed manual speed changer.
Fig. 4 is the longitudinal sectional view of the utility model six-speed manual speed changer.
Fig. 5 is the transverse sectional view of the utility model six-speed manual speed changer.
Embodiment
For make the purpose of this utility model, technological scheme, and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 3 is the plan view of the utility model six-speed manual speed changer.Fig. 4 is the longitudinal sectional view of the utility model six-speed manual speed changer.Fig. 5 is the transverse sectional view of the utility model six-speed manual speed changer.Now in conjunction with Fig. 3, Fig. 4 and Fig. 5, the structure of six-speed manual speed changer of the present utility model is described, specific as follows:
Six-speed manual speed changer of the present utility model comprises: output shaft 31, rear bearing, output shaft 32, front bearing, output shaft 33, often nibble driven gear 34, three or four gear synchronizers 36, three gear driving gears 37, six gear driving gears 38, five or six gear synchronizers 39, five gear driving gears 40, two gear driving gears 41, driving gear 42 reverses gear, idle pulley 43, reverse gear shaft 44, one gear driving gear 45, front bearing, input shaft 46, input shaft 47, front case 48, jack shaft fore bearing 49, one gear driven gear 50, one or two gear synchronizers 51, driven gear 52 reverses gear, two gear driven gears 53, five gear driven gears 54, middle shell 55, six gear driven gears 56, three gear driven gears 57, jack shaft 58, often nibble driving gear 59, jack shaft rear bearing 60, rear case 61, three or four gear shift forks 62, one or two gear shift forks 63, one or two gear fork shafts 64, three or four gear fork shafts 65, five or six gear fork shafts 66, five or six gear shift forks 67, back fork 68 and shifting operation assembly 69.
Middle shell 55 is bolted on front case 48 and rear case 61, forms the cavity of each element that the installing speed changers comprise with front case 48 and rear case 61.
Wherein, include on the output shaft 31 and often nibble driven gear 34; 48 direction includes two gear driving gears 41 and a gear driving gear 45 successively along middle shell 55 to front case on the input shaft 47, and 48 direction is equiped with three or four gear synchronizers 36, three gear driving gears 37, six gear driving gears 38, five or six gear synchronizers 39, five gear driving gear 40 and the driving gears 42 that reverse gear successively along rear case 61 to front case; 48 direction includes and often nibbles driving gear 59, three gear driven gears 57, six gear driven gears 56 and five gear driven gears 54 along rear case 61 to front case on the jack shaft 58, and 48 direction is equiped with two gear driven gears (53) successively along rear case 61 to front case, one or two gear synchronizers (51) and keep off driven gear (50).
Output shaft 31 is fixed on the rear case 61 by rear bearing, output shaft 32 and front bearing, output shaft 33, and it, comprises near an end of middle shell 55 and often to nibble driven gear 34 in order to output speed away from an end of middle shell 55.
That often nibbles that driven gear 34 and jack shaft 58 comprise often nibbles driving gear 59 engagements, in it can by needle bearing 35 fixedly input shaft 47 stretch into an end of rear case 61; Often nibble the external toothing engagement that synchronous gear ring that driven gear 34 comprises can comprise with three or four gear synchronizers 36.
Input shaft 47 is fixed in front case 48 by front bearing, input shaft 46, and an end that stretches into rear case 55 is installed in often nibbling on the driven gear 34 that output shaft 31 comprises by bearing.
Jack shaft 58 is fixed on the rear case 61 by jack shaft rear bearing 60, is fixed on the front case 48 by jack shaft fore bearing 49.
Three or four gear synchronizers 36 are equiped with three or four gear fork shafts 65, under the control of three or four gear fork shafts 65 to away from or slide near the direction of middle shell 55, in other words, three or four gear synchronizers 36 can slide into along input shaft 47 position of the synchronous gear ring engagement that three or four external toothings that comprise of gear synchronizers 36 and three gear driving gears 37 comprise under the control of three or four gear fork shafts 65, perhaps slide into external toothing that three or four gear synchronizers 36 comprise and the position of often nibbling synchronous gear ring that driven gear 34 comprises and meshing along input shaft 47.
Three gear driving gears 37 can be installed on the input shaft 47 by oil groove 70, and the three gear driven gears 57 that comprise with jack shaft 58 mesh; The synchronous gear ring that three gear driving gears 37 comprise can mesh with the external toothing that three or four gear synchronizers 36 comprise.
Six gear driving gears 38 are installed on the input shaft 47 by bearing, and the six gear driven gears 56 that comprise with jack shaft 58 mesh; The synchronous gear ring that six gear driving gears 38 comprise can mesh with the external toothing that five or six gear synchronizers 39 comprise.
Five or six gear synchronizers 39 are equiped with five or six gear fork shafts 66, under the control of five or six gear fork shafts 66, along input shaft 47 towards away from or slide near the direction of rear case 61, in other words, five or six gear synchronizers 39 are under the control of five or six gear fork shafts 66, slide into the position of the synchronous gear ring engagement that five or six external toothings that comprise of gear synchronizers 39 and five gear driving gears 40 comprise along input shaft 47, perhaps slide into external toothing and six that five or six gear synchronizers 39 comprise along input shaft 47 and keep off the position that synchronous gear ring that driving gears 38 comprise meshes.
Five gear driving gears 40 are installed in input shaft 47 by oil groove, and the five gear driven gears 54 that comprise with jack shaft 58 mesh; The synchronous gear ring that five gear driving gears 40 comprise can mesh with the external toothing that five or six gear synchronizers 39 comprise.
Two gear driving gears 41 are positioned on the input shaft 47, with two gear driven gears, 53 engagements of jack shaft 58 installings.
Two gear driven gears 53 are fixed on the jack shaft 58 by oil groove, and its synchronous gear ring that comprises can mesh with the external toothing that one or two gear synchronizers 51 comprise.
The external toothings of one or two gear synchronizers 51 are in the synchronous gear ring engagement that comprises with two gear driven gears 53, and during the synchronous gear ring engagement that does not also comprise with a gear driven gear 50, with driven gear 22 engagements of reversing gear.One or two gear synchronizers 51 are equiped with one or two gear fork shafts 64, under the control of one or two gear fork shafts 64, along jack shaft 58 towards near or slide away from the direction of front case 48, in other words, one or two gear synchronizers 51 are under the control of one or two gear fork shafts 64, can slide into along jack shaft 58 position of the synchronous gear ring engagement that one or two external toothings that comprise of gear synchronizers 51 and a gear driven gear 50 comprise, perhaps slide into the external toothing and two that one or two gear synchronizers 51 comprise along jack shaft 58 and keep off the position that driven gears 53 mesh.
The driven gear 52 that reverses gear meshes with the driving gear 42 that reverses gear that is installed on the input shaft 47, the transmission of power of the driving gear 42 that reverses gear can be given one or two gear synchronizers 51, and then by one or two gear synchronizers 51 power is reached jack shaft 58.
Idle pulley 43 connects back fork 68 by bearing, can be under the control of back fork 68,61 direction is slided along reverse gear shaft 44 towards rear case, in other words, idle pulley 43 can be under the control of back fork 68, slide into position with driving gear 42 engagement of reversing gear along reverse gear shaft 44, with transmission of power to the driving gear 42 that reverses gear.
One gear driven gear, 50 engagements of installing on one gear driving gear 45 and the jack shaft 58; One gear driven gear 50 is installed on the jack shaft 58 by oil groove, and its synchronous gear ring that comprises can mesh with the external toothing that one or two gear synchronizers 51 comprise.
Three or four the gear fork shafts 65 do not install three or four the gear synchronizers 36 an end on be fixed with three or four the gear shift forks 62; Three or four gear shift forks 62 connect shifting operation assembly 69 by bearing.
Five or six the gear fork shafts 66 do not install five or six the gear synchronizers 39 an end on be fixed with five or six the gear shift forks 67; Five or six gear shift forks 67 connect shifting operation assembly 69 by bearing.
One or two the gear fork shafts 64 do not install one or two the gear synchronizers 51 an end on be fixed with one or two the gear shift forks 63; One or two gear shift forks 63 connect shifting operation assembly 69 by bearing.
Shifting operation assembly 69 is installed in middle shell 55 by bolt, connect back fork 68 by bearing, it is by stirring one or two gear shift forks 63, three or four gear shift forks 62, five or six gear shift fork 67 or back forks 68, control the movement of one or two gear fork shafts 64, three or four gear fork shafts 65, five or six gear fork shafts 66 or reverse gear shaft 44, and then realize the block selecting gear shift operation.
Now in conjunction with Fig. 3 to Fig. 5, the block selecting shift speed change of six-speed manual speed changer of the present utility model is described, specific as follows:
When selecting a gear of the utility model six-speed manual speed changer, stir one or two gear shift forks 63 by shifting operation assembly 69, external toothing by one or two gear fork shafts, 64 controls, one or two gear synchronizers 51 slides to the direction near front case 48 along jack shaft 58, synchronous gear ring engagement with a gear driven gear 50, at this moment, the gear driving gear 45 that input shaft 47 comprises keeps off driven gear 50 with transmission of power to one, one gear driven gear 50 by one or two gear synchronizers 51 with transmission of power to jack shaft 58, jack shaft 58 by often nibble driving gear 59 with power transmission to often nibbling driven gear 34 on the output shaft 31, realize by output shaft 31 outputs one gear rotating speed.
When selecting two gear of the utility model six-speed manual speed changer, stir one or two gear shift forks 63 by shifting operation assembly 69, by one or two gear fork shafts 64 external toothing of one or two gear synchronizers 51 is slided to the direction away from front case 48, synchronous gear ring engagement with two gear driven gears 53, the two gear driving gears 41 that input shaft 47 comprises keep off driven gears 53 with transmission of power to two, two gear driven gears 53 by one or two gear synchronizers 51 with transmission of power to jack shaft 58, jack shaft 58 by often nibble driving gear 59 with transmission of power to often nibbling driven gear 34 on the output shaft 31, realize by output shaft 31 outputs two gear rotating speeds.
When selecting three gear of the utility model six-speed manual speed changer, stir three or four gear shift forks 62 by shifting operation assembly 69, by three or four gear fork shafts 65 external toothing of three or four gear synchronizers 36 is slided to the direction away from rear case 61, engage with the synchronous gear ring of three gear driving gears 37, input shaft 47 keeps off driving gears 37 with transmission of power to three by three or four gear synchronizers 36, three gear driving gears 37 by three gear driven gears 57 on the jack shaft 58 with transmission of power to jack shaft 58, jack shaft 58 by often nibble driving gear 59 with power transmission to often nibbling driven gear 34 on the output shaft 31, realize by output shaft 31 outputs three gear rotating speeds.
When selecting four gear of the utility model six-speed manual speed changer, stir three or four gear shift forks 62 by shifting operation assembly 69, by three or four gear fork shafts 65 external toothing of three or four gear synchronizers 36 is slided to the direction near rear case 61, the synchronous gear ring of often nibbling on the driven gear 34 that comprises with output shaft 31 meshes, input shaft 47 by three or four gear synchronizers 36 with transmission of power to output shaft 31, realize by output shaft 31 outputs four gear rotating speeds.
When selecting five gear of the utility model six-speed manual speed changer, stir five or six gear shift forks 67 by shifting operation assembly 69, by five or six gear fork shafts 66 external toothing of five or six gear synchronizers 39 is slided to the direction near front case 48, synchronous gear ring engagement with five gear driving gears 40, input shaft 47 keeps off driving gears 40 with transmission of power to five by five or six gear synchronizers 39, five gear driving gears 40 by the gear of five on the jack shaft 58 driven gears 54 with transmission of power to jack shaft 58, jack shaft 58 by often nibble driving gear 59 with transmission of power to often nibbling driven gear 34 on the output shaft 31, realize by output shaft 31 outputs five gear rotating speeds.
When selecting six gear of the utility model six-speed manual speed changer, stir five or six gear shift forks 67 by shifting operation assembly 69, by five or six gear fork shafts 66 external toothing of five or six gear synchronizers 39 is slided to the direction near rear case 61, engage with the synchronous gear ring of six gear driving gears 38, input shaft 47 keeps off driving gears 38 with transmission of power to six by five or six gear synchronizers 39, six gear driving gears 38 by the gear of six on the jack shaft 58 driven gears 56 with transmission of power to jack shaft 58, jack shaft 58 by often nibble driving gear 59 with transmission of power to often nibbling driven gear 34 on the output shaft 31, realize by output shaft 31 outputs six gear rotating speeds.
When selecting the reversing gear of the utility model six-speed manual speed changer, stir back fork 68 by shifting operation assembly 69, control idle pulley 43 along reverse gear shaft 44 towards rear case 51 direction slide, with driving gear 42 engagements of reversing gear on the input shaft 47, be meshed with one or two driven gears 52 that reverse gear that keep off on synchronizers 51 external toothings simultaneously, input shaft 47 by the driving gear 42 that reverses gear with transmission of power to idle pulley 43, idle pulley 43 is given one or two driven gears 52 that reverse gear that keep off on the synchronizers 51 with transmission of power, one or two the gear synchronizers 51 with transmission of power to jack shaft 58, jack shaft 58 is often nibbled driven gear 34 with transmission of power to output shaft 31 by often nibbling driving gear 59, realize namely realizing reversing gear by output shaft 31 output reverse speeds.
In the above-mentioned preferred embodiment of the present utility model, the six-speed manual speed changer can be realized six gear speed and the switching of reversing gear, and than existing five fast manual transmissions, improves the sensitivity that Speed Ratio Distribution precision and gear switch; Gear of the present utility model and axle fitting surface are driven oil groove,, make and utilize sliding bearing to replace rolling bearing between gear and the axle at input shaft and the corresponding gear of jack shaft installing by oil groove, have increased the lubrication effect of driving component, so that the gear switching is more smooth and easy; Front case of the present utility model, middle shell and rear case adopt bolt to be fixedly connected with, and output shaft and jack shaft are not installed on the middle shell, have shortened the length of middle shell, have improved the rigidity of whole housing; Shifting operation assembly of the present utility model adopts integrated structure, with the return spring of shifting axle, each gear and the part integrated installation such as shifting guiding groove on the shifting housing, utilize bolt that shifting housing and middle shell are connected and fixed during installation, reduced the difficulty of assembling, so that the structure of speed changer is compacter.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.

Claims (8)

1. six-speed manual speed changer, this speed changer comprises front case (48), middle shell (55) and rear case (61), it is characterized in that, and this speed changer comprises:
Output shaft (31) is fixed in rear case (61) by rear bearing, output shaft (32) and front bearing, output shaft (33), and an end of close middle shell (55) comprises often nibbles driven gear (34);
Input shaft (47), be fixed in front case (48) by front bearing, input shaft (46), an end that stretches into rear case (55) is installed on the output shaft (31), direction along rear case (61) to front case (48) is equiped with three or four gear synchronizers (36), three gear driving gears (37), six gear driving gears (38), five or six gear synchronizers (39), five gear driving gear (40) and the driving gears that reverse gear (42) successively, and input shaft (47) comprises two gear driving gears (41) and a gear driving gear (45);
Jack shaft (58), be fixed on the rear case (61) by jack shaft rear bearing (60), be fixed on the front case (18) by jack shaft fore bearing (49), direction along middle shell (55) to front case (48) is equiped with two gear driven gears (53), one or two gear synchronizers (51) and a gear driven gear (50) successively, and jack shaft (58) comprises often nibbles driving gear (59), three gear driven gears (57), six gear driven gears (56) and five gear driven gears (54);
Shifting operation assembly (69), be installed in middle shell (55), be connected and fixed on one or two on one or the two gear fork shafts (64) by bearing and keep off shift forks (63), be fixed in three or four gear shift forks (62) on three or the four gear fork shafts (65), be fixed in five or six gear shift forks (67) on five or six gears fork shafts (66) and be fixed in back fork (68) on the reverse gear shaft (44), by stirring one or two gear shift forks (63), three or four gear shift forks (62), five or six gear shift fork (67) or back forks (68) are controlled one or two gear fork shafts (64), three or four gear fork shafts (65), the movement of five or six gear fork shafts (66) or reverse gear shaft (44);
Described one or two gear fork shafts (64) are installed in one or two gear synchronizers (51); Described three or four gear fork shaft (65) installings and three or four gear synchronizers (36); Described five or six gear fork shafts (66) are installed in five or six gear synchronizers (39); Described reverse gear shaft (44) is installed in idle pulley (43);
The driven gear (52) that reverses gear, the external toothing and the driving gear that reverses gear (42) engagement that comprise with one or two gear synchronizers (51).
2. speed changer according to claim 1 is characterized in that, described three gear driving gears (37) are installed in input shaft (47) by oil groove (70),
And/or described five gear driving gears (40) are installed in input shaft (47) by oil groove (70).
3. speed changer according to claim 1 is characterized in that, a described gear driven gear (50) is installed in jack shaft (58) by oil groove (70),
And/or described two gear driven gears (53) are installed in jack shaft (58) by oil groove (70).
4. speed changer according to claim 1 is characterized in that, the end that described input shaft (47) stretches into rear case (55) is installed on the described output shaft (31) by needle bearing (35).
5. speed changer according to claim 1, it is characterized in that, described one or two gear synchronizers (51) are under the control of one or two gear fork shafts (64), slide into the position of the synchronous gear ring engagement that one or two external toothings that comprise of gear synchronizers (51) and a gear driven gear (50) comprise along jack shaft (58), perhaps slide into the external toothing that one or two gear synchronizers (51) comprise along jack shaft (58) and keep off the position that driven gears (53) mesh with two.
6. speed changer according to claim 1, it is characterized in that, described three or four gear synchronizers (36) are under the control of three or four gear fork shafts (65), slide into the position of the synchronous gear ring engagement that three or four external toothings that comprise of gear synchronizers (36) and three gear driving gears (37) comprise along input shaft (47), perhaps slide into external toothing that three or four gear synchronizers (36) comprise and the position of often nibbling synchronous gear ring that driven gear (34) comprises and meshing along input shaft (47).
7. speed changer according to claim 1, it is characterized in that, described five or six gear synchronizers (39) are under the control of five or six gear fork shafts (66), slide into the position of the synchronous gear ring engagement that five or six external toothings that comprise of gear synchronizers (39) and five gear driving gears (40) comprise along input shaft (47), perhaps slide into external toothing and six that five or six gear synchronizers (39) comprise along input shaft (47) and keep off the position that synchronous gear ring that driving gears (38) comprise meshes.
8. speed changer according to claim 1, it is characterized in that, described idle pulley (43) slides into the driving gear that reverses gear (42) and is installed in the position of the driven gear that reverses gear (52) engagement of the external toothing engagement that one or two gear synchronizers (51) comprise along reverse gear shaft (44) under the control of back fork (68).
CN 201220297403 2012-06-21 2012-06-21 Six-speed manual transmission Expired - Lifetime CN202646553U (en)

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CN 201220297403 CN202646553U (en) 2012-06-21 2012-06-21 Six-speed manual transmission

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329415A (en) * 2014-11-07 2015-02-04 陕西法士特齿轮有限责任公司 Six-stage single-middle-shaft speed changer
CN105276099A (en) * 2014-06-11 2016-01-27 广州汽车集团股份有限公司 Transmission and vehicle
CN106838145A (en) * 2017-03-22 2017-06-13 山东蒙沃变速器有限公司 A kind of low consumption noise reduction commercial car speed changer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276099A (en) * 2014-06-11 2016-01-27 广州汽车集团股份有限公司 Transmission and vehicle
CN105276099B (en) * 2014-06-11 2018-06-05 广州汽车集团股份有限公司 Speed changer and vehicle
CN104329415A (en) * 2014-11-07 2015-02-04 陕西法士特齿轮有限责任公司 Six-stage single-middle-shaft speed changer
CN106838145A (en) * 2017-03-22 2017-06-13 山东蒙沃变速器有限公司 A kind of low consumption noise reduction commercial car speed changer

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