CN214999161U

CN214999161U - Gearbox and vehicle

Info

Publication number: CN214999161U
Application number: CN202120776941.XU
Authority: CN
Inventors: 郭林; 徐卫权; 伊东明; 刘婉; 姜勇俊; 吴荣华; 郭成荣; 赵后华; 章卫英
Original assignee: Zhejiang Wanliyang Transmission Co Ltd
Current assignee: Zhejiang Wanliyang Transmission Co Ltd
Priority date: 2021-04-13
Filing date: 2021-04-16
Publication date: 2021-12-03
Anticipated expiration: 2031-04-16

Abstract

The utility model provides a gearbox and a vehicle, wherein the gearbox comprises a shell, a bearing, an input shaft and a normally meshed transmission gear; the shell is provided with a bearing chamber; the bearing is embedded in the bearing chamber; the input shaft is arranged on the bearing in a penetrating manner, and one end of the input shaft is provided with constant meshing teeth; the constant mesh transmission gear is meshed with the constant mesh teeth; wherein, one side that the bearing chamber is located constant mesh drive gear is provided with and keeps away the vacancy, and some constant mesh gears are located and keep away the vacancy. The utility model provides a vacancy is kept away through setting up at the bearing room to the gearbox, and then reduces the distance between constant mesh gear and the gearbox input shaft casing, makes constant mesh gear be close to gearbox input shaft casing one side, makes axial structure compacter, and then reduces the volume of gearbox, makes the gearbox satisfy miniaturized demand.

Description

Gearbox and vehicle

The present application claims priority from the chinese patent application entitled "transmission and vehicle" filed by the chinese patent office at 2021, 04, 13, month 202120746903.X, the entire contents of which are incorporated herein by reference.

Technical Field

The utility model relates to an automotive transmission field, concretely relates to gearbox and vehicle.

Background

At present, the transmission is one of three major parts of a vehicle and is also one of very important parts of the vehicle.

In the related art, an engine of a vehicle is connected with a transmission to transmit power to an axle to drive the vehicle to move, but the transmission occupies a certain space in the vehicle due to the large volume of the transmission, and particularly for a small vehicle, the space in the small vehicle is limited, and the installation of the rest parts in the vehicle is influenced due to the large volume of the transmission.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, a first aspect of the present invention provides a transmission.

A second aspect of the present invention provides a vehicle.

In view of this, the first aspect of the present invention provides a transmission, including: the device comprises a shell, a bearing, an input shaft and a normally meshed transmission gear; the shell is provided with a bearing chamber; the bearing is embedded in the bearing chamber; the input shaft is arranged on the bearing in a penetrating manner, and one end of the input shaft is provided with constant meshing teeth; the constant mesh transmission gear is meshed with the constant mesh teeth; wherein, one side that the bearing room is located constant mesh drive gear is provided with and keeps away the vacancy, and some constant mesh drive gear is located keeps away the vacancy.

In the technical scheme, the gearbox comprises a shell, a bearing, an input shaft and a constant mesh transmission gear; be equipped with the bearing room on the gearbox casing, the bearing inlays in the bearing room, wear to locate on the bearing with the input shaft that one end was provided with constant mesh tooth, constant mesh drive gear meshes with constant mesh tooth mutually, in order to realize at the during operation, the input shaft transmits power to constant mesh drive gear through constant mesh tooth, one side that the bearing room is located constant mesh drive gear is provided with keeps away the vacancy, part constant mesh drive gear is located keeps away the vacancy, keep away the vacancy through setting up at the bearing room, and then reduce the distance between constant mesh drive gear and the gearbox input shaft casing, make constant mesh drive gear be close to gearbox input shaft casing one side, make axial structure compacter, and then reduce the volume of gearbox, make the gearbox satisfy miniaturized demand.

Additionally, the utility model provides an among the above-mentioned technical scheme gearbox can also have following additional technical characterstic:

the utility model discloses an among the technical scheme, the bearing room includes the flange, and the flange is unclosed's annular, supports to lean on in the bearing, is located the one side of keeping away from normal mesh drive gear.

In this technical scheme, the bearing room includes the flange, and the shape of flange supports and leans on the bearing for the not closed annular to be located the one side of keeping away from normal mesh drive gear, through set up the flange at the bearing room, and then realize that the flange structure can be to the spacing of normal mesh drive gear and bearing, avoid the damage of normal mesh drive gear and bearing in the course of the work, promote the stability of structure.

Specifically, the shape of the flange is a C-shaped structure so as to limit the normally meshed transmission gear and the bearing.

The utility model discloses an among the technical scheme, the constant mesh tooth supports to lean on in the bearing, and one side that the constant mesh tooth is close to the flange is provided with the chamfer to make constant mesh tooth and flange avoid mutually.

In this technical scheme, the constant mesh tooth leans on with the bearing counterbalance to one side that is close to the flange at the constant mesh tooth sets up the chamfer, so that the constant mesh tooth avoids with the flange mutually, and then reduces the distance between constant mesh drive gear and the gearbox input shaft casing, makes constant mesh drive gear be close to gearbox input shaft casing one side, makes axial structure compacter, in order to realize the installation to constant mesh tooth and flange, prevents that the edges and corners of constant mesh tooth from contacting with the flange and causing the damage of mechanism.

The utility model discloses an among the technical scheme, the gearbox still includes: the device comprises an intermediate shaft, a six-gear transmission gear, an output shaft, a six-gear output gear and a first synchronizer; the constant mesh transmission gear is sleeved on the intermediate shaft; the six-gear transmission gear is sleeved on the intermediate shaft and is abutted against the normally meshed transmission gear; the output shaft and the input shaft are coaxially arranged; the six-gear output gear is sleeved on the output shaft and meshed with the six-gear transmission gear; the first synchronizer is sleeved on the output shaft and is positioned between the six-gear output gear and the normally meshed gear.

In the technical scheme, the gearbox further comprises an intermediate shaft, a six-gear transmission gear, an output shaft, a six-gear output gear and a first synchronizer; the constant-meshing transmission gear is sleeved on the intermediate shaft so as to transmit power to the intermediate shaft through the constant-meshing transmission gear, the six-gear transmission gear is sleeved on the intermediate shaft and abuts against the constant-meshing transmission gear, when the intermediate shaft rotates, the six-gear transmission gear also rotates along with the intermediate shaft, and the output shaft and the input shaft are coaxially arranged; the six-gear output gear is sleeved on the output shaft and meshed with the six-gear transmission gear, so that the six-gear output gear can rotate along with the rotation of the six-gear transmission gear, the first synchronizer is sleeved on the output shaft and positioned between the six-gear output gear and the normally meshed gear, so that when the fifth gear is to be shifted, the synchronizer is moved, a cone on the input shaft is connected with a synchronous ring on the output shaft, further, the power is directly transmitted to the output shaft through the input shaft without being transmitted through an intermediate shaft, further, the output of the power of the fifth gear is realized, when the sixth gear is to be shifted, the shifting fork is shifted, so that the synchronizer is moved, the rotating speed of the six-gear output gear can quickly reach the same rotating speed as that of the six-gear transmission gear by the synchronizer, the six-gear output gear and the six-gear transmission gear are quickly meshed, the shifting time is shortened, and the output gear and the transmission gear are prevented from being meshed with the unsynchronized rotating speed, avoiding damage to the structure. In addition, the structure of the sixth gear enables the transmission ratio range to be wider, the step difference between the gears is smaller, and further the dynamic property and the driving adaptability of the vehicle can be improved.

Specifically, the synchronizer is a single-conical-surface short-stroke synchronizer.

Specifically, the synchronizer is a double-conical-surface short-stroke synchronizer.

The utility model discloses an among the technical scheme, the gearbox still includes: the four-gear transmission gear, the four-gear output gear, the three-gear transmission gear, the three-gear output gear and the second synchronizer are arranged on the transmission shaft; the four-gear transmission gear is sleeved on the intermediate shaft and abuts against the six-gear transmission gear; the four-gear output gear is sleeved on the input shaft and meshed with the four-gear transmission gear; the third-gear transmission gear is sleeved on the intermediate shaft and is of an integrated structure with the fourth-gear transmission gear; the three-gear output gear is sleeved on the input shaft and meshed with the three-gear transmission gear; the second synchronizer is sleeved on the output shaft and is positioned between the third-gear output gear and the fourth-gear output gear.

In the technical scheme, the gearbox further comprises a fourth-gear transmission gear, a fourth-gear output gear, a third-gear transmission gear, a third-gear output gear and a second synchronizer; the four-gear transmission gear is sleeved on the middle shaft and abuts against the six-gear transmission gear, the four-gear output gear is sleeved on the input shaft and is meshed with the four-gear transmission gear so as to transmit power to the middle shaft through the input shaft, and the four-gear transmission gear sleeved on the middle shaft transmits power to the four-gear output gear so as to transmit power to the output shaft; the third-gear transmission gear is sleeved on the intermediate shaft and is of an integrated structure with the fourth-gear transmission gear, so that the structure is simple and convenient to install; the three-gear output gear is sleeved on the input shaft and is meshed with the three-gear transmission gear so as to transmit power to the intermediate shaft through the input shaft, and the three-gear transmission gear sleeved on the intermediate shaft transmits the power to the four-gear output gear so as to transmit the power to the output shaft; the second synchronizer is sleeved on the output shaft and located between the three-gear output gear and the four-gear output gear, so that the second synchronizer can adjust the three-gear output gear and the four-gear output gear, the shifting fork is shifted when the third gear or the fourth gear is to be shifted, the synchronizer is moved, the synchronizer can enable the rotating speed of the three-gear output gear or the four-gear output gear to quickly reach the rotating speed same as that of the three-gear transmission gear or the four-gear transmission gear, the output gear and the transmission gear are quickly meshed, power is output through the output shaft, the desired gear is reached, the shifting time is shortened, the output gear and the transmission gear are prevented from being meshed at the unsynchronized rotating speed, and the structure is prevented from being damaged.

The utility model discloses an among the technical scheme, the gearbox still includes: a second gear output gear, a second gear transmission gear, a first gear output gear, a first gear transmission and a third synchronizer; the second-gear output gear is sleeved on the output shaft; the intermediate shaft is provided with a second-gear transmission gear which is positioned on one side of the third-gear transmission gear and meshed with the second-gear output gear; the first gear output gear is sleeved on the output shaft; the intermediate shaft is provided with a first-gear transmission gear which is positioned on one side of the second-gear transmission gear and is meshed with the first-gear output gear; the third synchronizer is sleeved on the output shaft and is positioned between the first gear output gear and the second gear output gear.

In this solution, the gearbox further comprises: a second gear output gear, a second gear transmission gear, a first gear output gear, a first gear transmission and a third synchronizer; the second-gear output gear is sleeved on the output shaft; the intermediate shaft is provided with a second-gear transmission gear which is positioned on one side of the third-gear transmission gear and meshed with the second-gear output gear; the power is transmitted to the intermediate shaft through the input shaft, and the secondary transmission gear on the intermediate shaft transmits the power to the output shaft through the secondary output gear; the first gear output gear is sleeved on the output shaft; the intermediate shaft is provided with a first-gear transmission gear which is positioned on one side of the second-gear transmission gear and is meshed with the first-gear output gear so as to transmit power to the intermediate shaft through the input shaft, and the first-gear transmission gear on the intermediate shaft transmits the power to the output shaft through the first-gear output gear; the third synchronizer is sleeved on the output shaft and is positioned between the first gear output gear and the second gear output gear, when the first gear or the second gear is to be shifted, the shifting fork is shifted, the synchronizer moves, the synchronizer can enable the rotating speed of the output gear to quickly reach the rotating speed same as that of the transmission gear, the output gear is quickly meshed with the transmission gear, the output shaft outputs power, the desired gear is achieved, the gear shifting time is shortened, the output gear is prevented from being meshed with the transmission gear at the unsynchronized rotating speed, and the structure is prevented from being damaged.

The utility model discloses an among the technical scheme, the gearbox still includes: the reverse gear idler gear, the reverse gear output gear, the second tooth holder and the tooth sleeve are arranged on the gear sleeve; the reverse gear idler wheel is meshed with the first gear transmission gear; the reverse gear output gear is sleeved on the intermediate shaft and meshed with the reverse gear idle wheel, and the reverse gear output gear is provided with a first tooth holder; the second tooth holder is sleeved on the output shaft and positioned on one side of the first tooth holder; the gear sleeve is sleeved on the first gear seat and can slide to the second gear seat.

In the technical scheme, the reverse gear idler wheel is meshed with the first gear transmission gear; the reverse gear output gear is sleeved on the intermediate shaft and meshed with the reverse gear idle wheel, and the reverse gear output gear is provided with a first tooth holder; the second tooth holder is sleeved on the output shaft and positioned on one side of the first tooth holder; the tooth cover is located on the first toothholder, and slidable is to the second toothholder on to the realization is when shifting, and power is transmitted to the jackshaft by the input shaft, and through an epaxial fender driving tooth and reverse gear idler and transmit reverse gear output gear, because reverse gear idler meshes respectively with a fender driving tooth and reverse gear output gear respectively, and then when can making a fender driving tooth rotate, reverse gear output gear rotates with opposite direction.

The utility model discloses an among the technical scheme, normal meshing drive gear, four keep off drive gear, three keep off drive gear all with jackshaft interference fit.

In this technical scheme, normally mesh drive gear, four keep off drive gear, three keep off drive gear all with jackshaft interference fit, according to normally mesh drive gear, four keep off drive gear, three keep off drive gear all with the jackshaft for the mounting means that the cover was established, interference fit makes normally mesh drive gear, four keep off drive gear, three keep off drive gear all with the jackshaft installation between the rear surface can produce elastic pressure, make being connected between drive gear and the jackshaft more fastening, and, simple structure, the axiality is better, and then make the structure more stable.

The utility model discloses an among the technical scheme, the tip of input shaft is provided with the lightening hole, and the opening in lightening hole is towards the output shaft to axial extension along the input shaft.

In the technical scheme, the lightening holes are formed in the end portion of the input shaft, the openings of the lightening holes face the output shaft and extend along the axial direction of the input shaft, so that the weight of the input shaft is reduced, the overall weight of the gearbox is further reduced, the cost is effectively reduced, the structure has the characteristic of light weight, and the fuel economy of an engine is improved.

The utility model discloses the second aspect provides a vehicle, including above-mentioned gearbox, consequently, this vehicle possesses above-mentioned arbitrary technical scheme's whole beneficial effect.

In the technical scheme, the gearbox comprises a shell, a bearing, an input shaft and a constant mesh transmission gear; be equipped with the bearing room on the gearbox casing, the bearing inlays in the bearing room, wear to locate on the bearing with the input shaft that one end was provided with constant mesh tooth, constant mesh drive gear meshes with constant mesh tooth mutually, in order to realize at the during operation, the input shaft transmits power to constant mesh drive gear through constant mesh tooth, one side that the bearing room is located constant mesh drive gear is provided with keeps away the vacancy, part constant mesh drive gear is located keeps away the vacancy, keep away the vacancy through setting up at the bearing room, and then reduce the distance between constant mesh drive gear and the gearbox input shaft casing, make constant mesh drive gear be close to gearbox input shaft casing one side, make axial structure compacter, and then reduce the volume of gearbox, make the gearbox satisfy miniaturized demand. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic view of a gearbox according to an embodiment of the present invention;

fig. 2 shows a schematic view of a gearbox part according to an embodiment of the invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

the

gearbox

1, 10 bearings, 12 flanges, 20 input shafts, 30 constant mesh transmission gears, 40 idle avoidance positions, 50 intermediate shafts, 60 six-gear transmission gears, 70 six-gear output gears, 80 first synchronizers, 90 fourth-gear transmission gears, 100 fourth-gear output gears, 110 third-gear transmission gears, 120 third-gear output gears, 130 second synchronizers, 140 second-gear output gears, 150 second-gear transmission teeth, 160 first-gear output gears, 170 third synchronizers, 180 reverse gear idle gears, 190 reverse gear output gears, 200 first-gear transmission teeth and the output shaft 210.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The gearbox and vehicle according to some embodiments of the present invention are described below with reference to fig. 1 and 2.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present invention provides a transmission 1, including: the housing, the bearing 10, the input shaft 20 and the constant mesh transmission gear 30; the shell is provided with a bearing chamber; the bearing 10 is embedded in the bearing chamber; the input shaft 20 is arranged on the bearing 10 in a penetrating way, and one end of the input shaft 20 is provided with constant mesh teeth; the constant mesh transmission gear 30 is meshed with the constant mesh teeth; wherein, the bearing chamber is provided with a space avoiding portion 40 at one side of the constant mesh transmission gear 30, and part of the constant mesh transmission gear is positioned in the space avoiding portion 40.

The utility model provides a gearbox 1, which comprises a shell, a bearing 10, an input shaft 20 and a constant mesh transmission gear 30; be equipped with the bearing room on gearbox 1 casing, bearing 10 inlays in the bearing room, wear to locate bearing 10 with input shaft 20 that one end is provided with constant mesh tooth, constant mesh drive gear 30 meshes with constant mesh tooth mutually, in order to realize at the during operation, input shaft 20 transmits power to constant mesh drive gear 30 through constant mesh tooth, one side that the bearing room is located constant mesh drive gear 30 is provided with keeps away vacancy 40, partial constant mesh drive gear 30 is located keeps away vacancy 40, keep away vacancy 40 through setting up in the bearing room, and then reduce the distance between constant mesh drive gear and the 1 input shaft 20 casing of gearbox, make constant mesh drive gear be close to 1 input shaft 20 casing one side of gearbox, make axial structure compacter, and then reduce the volume of gearbox 1, make gearbox 1 satisfy miniaturized demand.

Example two:

the present embodiment provides a transmission case 1, and in addition to the technical features of the above-described embodiments, further includes the following technical features.

As shown in fig. 1 and 2, the bearing chamber includes a rib 12, and the rib 12 is in a non-closed ring shape and abuts against the bearing 10 on a side away from the constant mesh transmission gear 30.

In this technical scheme, the bearing room includes flange 12, and the shape of flange 12 is unclosed's annular, supports and leans on bearing 10 to be located the one side of keeping away from constant mesh drive gear 30, through set up flange 12 at the bearing room, and then realize that flange 12 structure can be to the spacing of constant mesh drive gear 30 and bearing 10, avoid the damage of constant mesh drive gear 30 and bearing 10 in the course of the work, promote the stability of structure.

Specifically, the rib 12 is shaped like a "C" to limit the constant mesh transmission gear 30 and the bearing 10.

Example three:

As shown in fig. 1 and 2, the constant mesh teeth abut against the bearing 10, and a side of the constant mesh teeth close to the rib 12 is provided with a chamfer so that the constant mesh teeth and the rib 12 are avoided.

In this technical scheme, the constant mesh tooth leans on with bearing 10 counterbalance, and set up the chamfer in one side that the constant mesh tooth is close to flange 12, so that the constant mesh tooth avoids with flange 12 mutually, and then reduce the distance between constant mesh drive gear and the 1 input shaft 20 casing of gearbox, make constant mesh drive gear be close to 1 input shaft 20 casing one side of gearbox, make axial structure compacter, in order to realize the installation to constant mesh tooth and flange 12, prevent the edges and corners of constant mesh tooth and flange 12 contact and cause the damage of mechanism.

Example four:

As shown in fig. 1 and 2, the transmission case 1 further includes: the countershaft 50, the six-speed drive gear 60, the output shaft 210, the six-speed output gear 70, and the first synchronizer 80; the constant mesh transmission gear 30 is sleeved on the intermediate shaft 50; the six-gear transmission gear 60 is sleeved on the intermediate shaft 50 and abuts against the normally meshed transmission gear 30; the output shaft 210 is disposed coaxially with the input shaft 20; the six-gear output gear 70 is sleeved on the output shaft 210 and meshed with the six-gear transmission gear 60; the first synchronizer 80 is sleeved on the output shaft 210 and is located between the six-gear output gear 70 and the constant mesh gear.

In this technical solution, the transmission 1 further includes an intermediate shaft 50, a six-gear transmission gear 60, an output shaft 210, a six-gear output gear 70, and a first synchronizer 80; the constant mesh transmission gear 30 is sleeved on the intermediate shaft 50 to transmit power to the intermediate shaft 50 through the constant mesh transmission gear 30, the six-gear transmission gear 60 is sleeved on the intermediate shaft 50 and abuts against the constant mesh transmission gear 30, when the intermediate shaft 50 rotates, the six-gear transmission gear 60 also rotates along with the intermediate shaft 50, and the output shaft 210 and the input shaft 20 are coaxially arranged; the six-gear output gear 70 is sleeved on the output shaft 210 and meshed with the six-gear transmission gear 60, so that the six-gear output gear 70 can rotate along with the rotation of the six-gear transmission gear 60, the first synchronizer 80 is sleeved on the output shaft 210 and is positioned between the six-gear output gear 70 and the normally meshed teeth, so that when a fifth gear is to be shifted, the synchronizer is moved, a cone on the input shaft 20 is connected with a synchronous ring on the output shaft 210, the power is directly transmitted to the output shaft 210 through the input shaft 20 without being transmitted through the intermediate shaft 50, the output of the power of the fifth gear is further realized, when the sixth gear is to be shifted, a shifting fork is shifted to move the synchronizer, the synchronizer can enable the rotating speed of the six-gear output gear 70 to quickly reach the same rotating speed as the rotating speed of the six-gear transmission gear 60, the six-gear output gear 70 and the six-gear transmission gear 60 are meshed, and the gear shifting time is shortened, the output gear and the transmission gear are prevented from being meshed without synchronous rotating speed, and the damage to the structure is avoided. In addition, the structure of the sixth gear enables the transmission ratio range to be wider, the step difference between the gears is smaller, and further the dynamic property and the driving adaptability of the vehicle can be improved.

Example five:

As shown in fig. 1 and 2, the transmission case 1 further includes: a fourth-gear transmission gear 90, a fourth-gear output gear 100, a third-gear transmission gear 110, a third-gear output gear 120 and a second synchronizer 130; the fourth-gear transmission gear 90 is sleeved on the intermediate shaft 50 and abuts against the sixth-gear transmission gear 60; the fourth-gear output gear 100 is sleeved on the input shaft 20 and meshed with the fourth-gear transmission gear 90; the third-gear transmission gear 110 is sleeved on the intermediate shaft 50 and is integrated with the fourth-gear transmission gear 90; the third-gear output gear 120 is sleeved on the input shaft 20 and meshed with the third-gear transmission gear 110; the second synchronizer 130 is sleeved on the output shaft 210 and located between the third-gear output gear 120 and the fourth-gear output gear 100.

In this technical solution, the transmission case 1 further includes a fourth-gear transmission gear 90, a fourth-gear output gear 100, a third-gear transmission gear 110, a third-gear output gear 120, and a second synchronizer 130; the fourth-gear transmission gear 90 is sleeved on the intermediate shaft 50 and abuts against the sixth-gear transmission gear 60, the fourth-gear output gear 100 is sleeved on the input shaft 20 and is meshed with the fourth-gear transmission gear 90 so as to transmit power to the intermediate shaft 50 through the input shaft 20, and the fourth-gear transmission gear 90 sleeved on the intermediate shaft 50 transmits power to the fourth-gear output gear 100 so as to transmit power to the output shaft 210; the third-gear transmission gear 110 is sleeved on the intermediate shaft 50 and is of an integrated structure with the fourth-gear transmission gear 90, so that the structure is simple and convenient to install; the third-gear output gear 120 is sleeved on the input shaft 20 and meshed with the third-gear transmission gear 110 to transmit power to the intermediate shaft 50 through the input shaft 20, and the third-gear transmission gear 110 sleeved on the intermediate shaft 50 transmits power to the fourth-gear output gear 100 to further transmit power to the output shaft 210; the second synchronizer 130 is sleeved on the output shaft 210 and located between the third-gear output gear 120 and the fourth-gear output gear 100, so that the second synchronizer 130 can adjust both the third-gear output gear 120 and the fourth-gear output gear 100, and when the third gear or the fourth gear is to be shifted, the shifting fork is shifted to move the synchronizer, the synchronizer can enable the rotating speed of the third-gear output gear 120 or the fourth-gear output gear 100 to quickly reach the same rotating speed as that of the third-gear transmission gear 110 or the fourth-gear transmission gear 90, so that the output gear and the transmission gear are quickly meshed, power is output through the output shaft 210, the desired gear is reached, the shifting time is shortened, the output gear and the transmission gear are prevented from being meshed without synchronous rotating speed, and damage to the structure is avoided.

Example six:

As shown in fig. 1 and 2, a second-gear output gear 140, a second-gear transmission tooth 150, a first-gear output gear 160, a first-gear transmission, and a third synchronizer 170; the second output gear 140 is sleeved on the output shaft 210; the intermediate shaft 50 is provided with a second-gear transmission gear 150 which is positioned on one side of the third-gear transmission gear 110 and is meshed with the second-gear output gear 140; the first gear output gear 160 is sleeved on the output shaft 210; the intermediate shaft 50 is provided with a first gear transmission gear 200 which is positioned on one side of the second gear transmission gear 150 and is meshed with the first gear output gear 160; the third synchronizer 170 is sleeved on the output shaft 210 and located between the first-gear output gear 160 and the second-gear output gear 140.

In this solution, the transmission 1 further includes: a second gear output gear 140, a second gear transmission gear 150, a first gear output gear 160, a first gear transmission and third synchronizer 170; the second output gear 140 is sleeved on the output shaft 210; the intermediate shaft 50 is provided with a second-gear transmission gear 150 which is positioned on one side of the third-gear transmission gear 110 and is meshed with the second-gear output gear 140; so as to realize the power transmission to the intermediate shaft 50 through the input shaft 20, and the second-gear transmission teeth 150 on the intermediate shaft 50 transmit the power to the output shaft 210 through the second-gear output gear 140; the first gear output gear 160 is sleeved on the output shaft 210; the intermediate shaft 50 is provided with a first-gear transmission gear 200 which is positioned at one side of the second-gear transmission gear 150 and is meshed with the first-gear output gear 160 so as to transmit power to the intermediate shaft 50 through the input shaft 20, and the first-gear transmission gear 200 on the intermediate shaft 50 transmits power to the output shaft 210 through the first-gear output gear 160; the third synchronizer 170 is sleeved on the output shaft 210 and located between the first gear output gear 160 and the second gear output gear 140, so that when the first gear or the second gear is to be shifted, the shifting fork is shifted to enable the synchronizer to move, the synchronizer can enable the rotating speed of the output gear to rapidly reach the same rotating speed as that of the transmission gear, rapid meshing of the output gear and the transmission gear is achieved, the output shaft 210 outputs power to reach a desired gear, the gear shifting time is shortened, the output gear and the transmission gear are prevented from being meshed due to unsynchronized rotating speed, and damage to the structure is avoided.

Example seven:

As shown in fig. 1 and 2, a reverse idler gear 180, a reverse output gear 190, a second carrier, and a sleeve; the reverse idler gear 180 is meshed with the first gear transmission gear 200; the reverse gear output gear 190 is sleeved on the intermediate shaft 50 and meshed with the reverse gear idler gear 180, and the reverse gear output gear 190 is provided with a first gear seat; the second tooth holder is sleeved on the output shaft 210 and positioned on one side of the first tooth holder; the gear sleeve is sleeved on the first gear seat and can slide to the second gear seat.

In this embodiment, the reverse idler gear 180 is engaged with the first gear transmission gear 200; the reverse gear output gear 190 is sleeved on the intermediate shaft 50 and meshed with the reverse gear idler gear 180, and the reverse gear output gear 190 is provided with a first gear seat; the second tooth holder is sleeved on the output shaft 210 and positioned on one side of the first tooth holder; the tooth cover is located on the first toothholder, and slidable is to the second toothholder on to the realization is when shifting, and power is transmitted to jackshaft 50 by input shaft 20, transmits reverse output gear 190 through a fender driving tooth 200 and reverse idle gear 180 on jackshaft 50, because reverse idle gear 180 meshes respectively with a fender driving tooth 200 and reverse output gear 190 respectively, and then when can making a fender driving tooth 200 rotate, reverse output gear 190 rotates with opposite direction.

Example eight:

As shown in fig. 1 and 2, the constant mesh transmission gear 30, the four-speed transmission gear 90, and the three-speed transmission gear 110 are in interference fit with the intermediate shaft 50.

In this technical scheme, normally mesh drive gear 30, four keep off drive gear 90, three keep off drive gear 110 all with jackshaft 50 interference fit, according to normally mesh drive gear 30, four keep off drive gear 90, three keep off drive gear 110 all with jackshaft 50 for the mounting means of establishing of cover, interference fit makes normally mesh drive gear 30, four keep off drive gear 90, three keep off drive gear 110 all with jackshaft 50 between the installation rear surface can produce elastic pressure, make the connection between drive gear and the jackshaft 50 more firm, and, moreover, the steam generator is simple in structure, the axiality is better, and then make the structure more stable.

Example nine:

As shown in fig. 1 and 2, the end portion of the input shaft 20 is provided with a lightening hole, the opening of which is directed toward the output shaft 210 and extends in the axial direction of the input shaft 20.

In the technical scheme, the end part of the input shaft 20 is provided with the lightening hole, the opening of the lightening hole faces the output shaft 210 and extends along the axial direction of the input shaft 20, so that the weight of the input shaft 20 is reduced, the overall weight of the gearbox 1 is further reduced, the cost is effectively reduced, the structure has the characteristic of light weight, and the fuel economy of the engine is improved.

Example ten:

the utility model provides a vehicle, including above-mentioned gearbox 1, consequently, this vehicle possesses whole beneficial effect of above-mentioned arbitrary technical scheme's gearbox 1.

The utility model provides a vehicle, including gearbox 1, gearbox 1 includes casing, bearing 10, input shaft 20 and constant mesh drive gear 30; be equipped with the bearing room on gearbox 1 casing, bearing 10 inlays in the bearing room, wear to locate bearing 10 with input shaft 20 that one end is provided with constant mesh tooth, constant mesh drive gear 30 meshes with constant mesh tooth mutually, in order to realize at the during operation, input shaft 20 transmits power to constant mesh drive gear through constant mesh tooth, one side that the bearing room is located constant mesh drive gear 30 is provided with keeps away vacancy 40, part constant mesh drive gear is located keeps away vacancy 40, keep away vacancy 40 through setting up at the bearing room, and then reduce the distance between constant mesh drive gear 30 and the 1 input shaft 20 casing of gearbox, make constant mesh drive gear 30 be close to 1 input shaft 20 casing one side of gearbox, make axial structure compacter, and then reduce the volume of gearbox 1, make gearbox 1 satisfy miniaturized demand.

In the claims, the specification and the drawings attached to the specification, the term "plurality" means two or more, unless there is an additional definite limitation, the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the purpose of describing the present invention more conveniently and simplifying the description process, and not for the purpose of indicating or implying that the device or element referred to must have the described specific orientation, be constructed and operated in the specific orientation, and thus the description should not be construed as limiting the present invention; the terms "connect," "mount," "secure," and the like are to be construed broadly, and for example, "connect" may refer to a fixed connection between multiple objects, a removable connection between multiple objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the above data.

In the claims, the specification and drawings of the specification, the description of the term "one embodiment," "some embodiments," "specific embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the claims, the description and the drawings of the present application, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission, comprising:

the bearing device comprises a shell, a bearing chamber and a bearing seat, wherein the shell is provided with the bearing chamber;

the bearing is embedded in the bearing chamber;

the input shaft penetrates through the bearing, and one end of the input shaft is provided with constant meshing teeth;

the constant mesh transmission gear is meshed with the constant mesh teeth;

and the bearing chamber is provided with a clearance avoiding position at one side of the normally meshed transmission gear, and part of the normally meshed transmission gear is positioned in the clearance avoiding position.

2. The gearbox of claim 1, wherein the bearing chamber comprises:

and the flange is in a non-closed annular shape, abuts against the bearing and is positioned on one side far away from the normally meshed transmission gear.

3. The gearbox of claim 2,

the constant mesh teeth are abutted to the bearing, and chamfers are arranged on one sides, close to the flanges, of the constant mesh teeth, so that the constant mesh teeth and the flanges are avoided.

4. The transmission of claim 1, further comprising:

the constant mesh transmission gear is sleeved on the intermediate shaft;

the six-gear transmission gear is sleeved on the intermediate shaft and abuts against the normally meshed transmission gear;

an output shaft disposed coaxially with the input shaft;

the six-gear output gear is sleeved on the output shaft and meshed with the six-gear transmission gear;

and the first synchronizer is sleeved on the output shaft and positioned between the six-gear output gear and the constant mesh gear.

5. The transmission of claim 4, further comprising:

the four-gear transmission gear is sleeved on the intermediate shaft and abuts against the six-gear transmission gear;

the four-gear output gear is sleeved on the input shaft and meshed with the four-gear transmission gear;

the three-gear transmission gear is sleeved on the intermediate shaft and is of an integrated structure with the four-gear transmission gear;

the three-gear output gear is sleeved on the input shaft and meshed with the three-gear transmission gear;

and the second synchronizer is sleeved on the output shaft and is positioned between the third-gear output gear and the fourth-gear output gear.

6. The transmission of claim 5, further comprising:

the two-stage output gear is sleeved on the output shaft;

the intermediate shaft is provided with a second-gear transmission gear which is positioned on one side of the third-gear transmission gear and is meshed with the second-gear output gear;

the first-gear output gear is sleeved on the output shaft;

the intermediate shaft is provided with a first-gear transmission gear which is positioned on one side of the second-gear transmission gear and is meshed with the first-gear output gear;

and the third synchronizer is sleeved on the output shaft and is positioned between the first gear output gear and the second gear output gear.

7. The transmission of claim 6, further comprising:

the reverse gear idler wheel is meshed with the first gear transmission gear;

the reverse gear output gear is sleeved on the input shaft and meshed with the reverse gear idle wheel, and is provided with a first tooth holder;

the second tooth holder is sleeved on the output shaft and is positioned on one side of the first tooth holder;

the gear sleeve is sleeved on the first gear seat and can slide to the second gear seat.

8. The gearbox of claim 5,

the normally meshed transmission gear, the four-gear transmission gear and the three-gear transmission gear are in interference fit with the intermediate shaft.

9. The gearbox according to any one of claims 4 to 8,

the end part of the input shaft is provided with a lightening hole, and the opening of the lightening hole faces the output shaft and extends along the axial direction of the input shaft.

10. Gearbox according to any of claims 1 to 3,

the gearbox further comprises an output shaft;

11. A vehicle comprising a gearbox according to any of claims 1 to 10.