CN211820587U - Gearbox and vehicle - Google Patents

Abstract

The utility model provides a gearbox to and vehicle that has this gearbox, wherein, the gearbox includes: the intermediate shaft assembly comprises an intermediate shaft and an intermediate speed transmission gear assembly sleeved on the intermediate shaft, the intermediate shaft comprises a gear tooth and a reverse gear tooth, and the intermediate speed transmission gear assembly is positioned between the gear tooth and the reverse gear tooth; one side of the inverted tooth is provided with a tool withdrawal groove, and part of the intermediate speed transmission gear assemblies are arranged at the tool withdrawal groove.

Description

Gearbox and vehicle

Technical Field

The utility model relates to a vehicle equipment technical field particularly, relates to a gearbox and vehicle.

Background

The gearbox is the important part that is used for adjusting the speed of a motor vehicle on the car, and different gear combinations produce the variable speed torque moment in the gearbox, and the gearbox among the correlation technique is mostly five grades of gearboxes, increases the fender position and will cause the gearbox to be great along axial size, causes the emergence of the condition that the gearbox is difficult to adapt to most vehicles.

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 middle shaft assembly comprises a middle shaft and a middle speed transmission gear assembly, the middle speed transmission gear assembly is sleeved on the middle shaft, the middle shaft comprises a gear tooth and a reverse gear tooth, and the middle speed transmission gear assembly is positioned between the gear tooth and the reverse gear tooth; wherein, one side of the reverse gear tooth is provided with a tool withdrawal groove, and part of the medium-speed transmission gear assembly is arranged at the tool withdrawal groove.

The utility model provides a gearbox includes the jackshaft subassembly, the jackshaft subassembly includes that jackshaft and cover locate the epaxial intermediate speed drive gear subassembly of jackshaft, the jackshaft includes that one keeps off the tooth and the tooth of reversing gear, the intermediate speed drive gear subassembly is located one keeps off between tooth and the tooth of reversing gear, one keeps off tooth and the tooth integrated into one piece of reversing gear on the axis body of jackshaft, when accomplishing the processing of the tooth of reversing gear, can be formed with the tool withdrawal groove in one side of the tooth of reversing gear when moving back the sword operation, because the intermediate speed drive gear subassembly is located one and keeps off between tooth and the tooth of reversing gear, make the tool withdrawal groove can bury underground in the gear hole of intermediate.

It can be understood that, in the related art, a blocking tooth is arranged on one side of a reverse gear tooth, and is also integrally formed on a shaft body of an intermediate shaft, because of the existence of a tool withdrawal groove, a blocking tooth cannot be formed at the tool withdrawal groove, and a blocking tooth needs to be formed on the shaft body without the tool withdrawal groove, so that the space of a tool withdrawal groove area between the blocking tooth and the reverse gear tooth is wasted, in the application, a medium-speed transmission gear assembly is arranged between the blocking tooth and the reverse gear tooth, on one hand, the tool withdrawal groove does not need to be avoided when the first blocking tooth is formed, on the other hand, because the medium-speed transmission gear assembly is sleeved on the intermediate shaft, the tool withdrawal groove does not need to be avoided, the tool withdrawal groove is arranged in the medium-speed transmission assembly, so that the axial length of the shaft body is reduced, the rigidity of the intermediate shaft is improved, the axial structure is more compact, and the volume of the gearbox is reduced, thereby under the condition that increases gearbox fender position, the gearbox in this application is the same basically with the gearbox axial installation size among the correlation technique, is favorable to increasing the gearbox adaptation in most vehicle of fender position, under the condition that gearbox axial installation size does not change basically, increases the fender position of gearbox for the drive ratio scope of gearbox is wider, satisfies different customers to the demand of the dynamic property of gearbox, fuel economy and the cost of purchasing a car.

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

in one possible design, the gearbox further includes an output shaft assembly, the output shaft assembly including: an output shaft; the first gear output gear is sleeved on the output shaft and meshed with the first gear; and the medium-speed output gear assembly is sleeved on the output shaft and meshed with the medium-speed transmission gear assembly.

In the design, the output shaft assembly comprises an output shaft, a first-gear output gear and an intermediate-speed output gear assembly, the first-gear output gear and the intermediate-speed output gear assembly are both sleeved on the output shaft, in order to meet the requirement of high torque of a vehicle when the vehicle travels by using a first gear, the tooth diameter of the first-gear output gear is larger than that of each output gear in the intermediate-speed output gear assembly, the first-gear output gear is meshed with a first-gear tooth, and the tooth diameter of the first-gear output gear is larger, so that the transmission between the first-gear output gear and the first-gear tooth is larger, and further the first-gear output gear can drive the output shaft to output larger torque.

The medium speed output gear assembly is meshed with the medium speed transmission gear assembly, and the tooth diameter of each gear in the medium speed output gear assembly is small, so that the medium speed output gear assembly can achieve high rotating speed, and further the medium speed output gear assembly can drive the output shaft to rotate at high speed.

In one possible design, the gearbox further comprises: the reverse gear steering wheel is meshed with the reverse gear teeth; the output shaft assembly also comprises a reverse gear output gear, and the reverse gear output gear is sleeved on the output shaft and is meshed with the reverse gear steering wheel; wherein, reverse gear steering wheel is the simplex gear.

In this design, reverse gear steering wheel and the meshing of reverse gear tooth, reverse gear steering wheel can rotate under the drive of reverse gear tooth, reverse gear steering wheel still meshes with reverse gear output gear, make reverse gear steering wheel drive reverse gear output gear and rotate, set up reverse gear steering wheel between reverse gear tooth and reverse gear output gear, reverse gear steering wheel can realize the switching-over function, make reverse gear output gear opposite with other output gear's steering, thereby make reverse gear output gear can drive output shaft antiport, the function that the vehicle was gone in reverse gear has been realized.

Further, because the existence of tool withdrawal groove among the correlation technique, need regard as duplicate gear with reversing the helm, owing to the tool withdrawal groove buries underground in intermediate speed drive assembly in this application to set up reversing the helm and set up to simply connect the gear and just can realize driven function, reduced reversing the processing quantity of helm, effectively practiced thrift the processing cost, owing to set up reversing the helm to simply connect the gear, make reversing the volume of helm reduce, and then make the structure between the gearbox inner part compacter.

In one possible design, the output shaft assembly further includes: and the climbing gear is sleeved on the output shaft, is positioned between the medium-speed output gear assembly and the reverse gear output gear and is meshed with the reverse gear.

In this design, the output shaft subassembly still includes climbing fender gear, climbing fender gear is located between intermediate speed output gear subassembly and the reverse gear output gear, it can be understood that climbing fender gear can be used when the vehicle is traveling to having the uphill highway section, keep off the gear through increasing climbing, make the drive ratio scope of gearbox wider, the practicality of gearbox has been increased, owing to bury the tool withdrawal groove underground in intermediate speed drive subassembly, it also makes gearbox axial installation gear size basically not change to increase climbing fender gear, gearbox axial occupation space has been reduced.

In addition, the climbing gear is meshed with the reverse gear, so that the tooth form meshed with the climbing gear does not need to be independently arranged on the middle shaft, the forming quantity of tool withdrawal grooves is reduced, and the condition that the tool withdrawal grooves waste space is avoided.

In one possible design, further comprising: the sliding gear sleeve comprises a spline hub and a joint sleeve, the spline hub is arranged on the output shaft and is positioned between the reverse gear output gear and the climbing gear, and the joint sleeve is arranged on the outer side of the spline hub and can slide along the axial direction of the output shaft relative to the spline hub so as to be meshed with the joint teeth of the reverse gear output gear or the joint teeth of the climbing gear.

In this design, the slip tooth cover includes spline hub and clutch collar, spline hub cover is located on the output shaft, spline hub and output shaft axial and circumference are fixed, make the spline hub can drive the output shaft and rotate, clutch collar is shared with the joint tooth of climbing gear output gear to the joint tooth of reverse gear output gear, the clutch collar can slide along the relative spline hub of axial of output shaft, the clutch collar is fixed along the circumference of output shaft with the spline hub, when the vehicle needs to use reverse gear to march, the clutch collar slides towards one side of reverse gear output gear, when the joint tooth and the clutch collar meshing of reverse gear output gear, reverse gear output gear drives the clutch collar and rotates, the clutch collar drives spline hub and output shaft and rotates, realize the function that the vehicle marchs with the reverse gear.

When the vehicle needs to use the climbing fender to march, the clutch collar slides towards one side of climbing fender gear, and when the engaging tooth of climbing fender gear and clutch collar meshing, the climbing fender gear drives the clutch collar and rotates, and the clutch collar drives spline hub and output shaft and rotates, realizes that the vehicle keeps off the function that advances with the climbing fender.

Because the rotational speed of reverse gear output gear and climbing gear is lower, need not set up the clutch collar into with reverse gear output gear and climbing gear synchronous speed realize the meshing again, but the clutch collar is directly realized the meshing with low-speed pivoted reverse gear output gear and climbing gear in the removal process, compare in the synchronous ware among the correlation technique, the slip tooth cover simple structure in this application reduces part quantity, thereby can reduce occupation space, make the structure of gearbox compacter.

In one possible design, the medium speed drive gear assembly includes a three-speed drive gear and a four-speed drive gear; the medium-speed output gear assembly comprises a three-gear output gear and a four-gear output gear; the third-gear transmission gear is meshed with the third-gear output gear, and the fourth-gear transmission gear is meshed with the fourth-gear output gear.

In the design, the three-gear transmission gear is meshed with the three-gear output gear, so that the three-gear transmission gear can drive the three-gear output gear to rotate, the four-gear transmission gear is meshed with the four-gear output gear, therefore, the four-gear transmission gear can drive the four-gear output gear to rotate, the output shaft is driven to rotate by the three-gear output gear or the four-gear output gear, the function that the output shaft can rotate at different rotating speeds is realized, the tool withdrawal groove can be embedded in the three-gear transmission gear or the four-gear transmission gear, and the understanding can be realized, because the three-gear transmission gear or the four-gear transmission gear has larger contact area with the intermediate shaft, the tool withdrawal groove is embedded in the three-gear transmission gear or the four-gear transmission gear, and the influence on the transmission stability of the three-gear transmission gear or the four-gear transmission gear is not easy to generate, thereby being beneficial to reducing the axial size of the intermediate shaft and improving the rigidity of the intermediate shaft.

In one possible design, the intermediate shaft assembly further comprises a six-gear transmission gear, the six-gear transmission gear is sleeved on the intermediate shaft, the intermediate shaft is provided with two gear teeth, one side of each gear tooth is provided with one gear tooth, and the other side of each gear tooth is provided with the six-gear transmission gear; the output shaft assembly further comprises a second-gear output gear and a sixth-gear output gear, the second-gear output gear is meshed with the second-gear teeth, and the sixth-gear output gear is meshed with the sixth-gear transmission gear.

In the design, a first gear is meshed with a first gear output gear, so that the first gear can drive the first gear output gear to rotate, a second gear is meshed with a second gear output gear, so that the second gear can drive the second gear output gear to rotate, a sixth gear transmission gear is meshed with the sixth gear output gear, so that the sixth gear transmission gear can drive the sixth gear output gear to rotate, the first gear and the second gear are integrally formed on a shaft body of an intermediate shaft, a synchronizer and other parts are arranged between the first gear and the second gear, so that a tool withdrawal groove for processing and forming the first gear is free from space waste, the diameter of the shaft body at the position of the six gear transmission gear is assembled to be smaller than that of the shaft body at the position of the second gear, so that when the second gear is processed on the shaft body, the tool withdrawal function can be directly completed, the tool withdrawal groove does not need to be formed on the shaft body, and the positions of the first gear, the second gear and the third gear are reasonably arranged, the structure in the gearbox is more compact, the space utilization rate is improved, and the occupied space of the gearbox is effectively reduced.

In one possible design, the gearbox further comprises: the input shaft assembly comprises an input shaft and an input gear, and the input gear is sleeved on the input shaft; the intermediate shaft assembly further comprises a driven gear, the driven gear is sleeved on the intermediate shaft, and the driven gear is meshed with the input gear.

In this design, the input shaft subassembly includes input shaft and input gear, and input gear overlaps to be located on the input shaft, and input gear is fixed along circumference with the input shaft, can drive input gear when the input shaft rotates, and input gear and the epaxial driven gear meshing of jackshaft, driven gear and jackshaft are fixed along circumference, and input gear drives driven gear and rotates, and driven gear can drive the jackshaft and rotate to the power transmission of input shaft to jackshaft has been realized.

In one possible design, the output shaft assembly further includes: the first synchronizer is arranged between the third-gear output gear and the fourth-gear output gear; the second synchronizer is arranged between the first-gear output gear and the second-gear output gear; the third synchronizer is arranged between the six-gear output gear and the input gear; wherein, the stroke of the first synchronizer, the second synchronizer and the third synchronizer is less than or equal to 10 mm.

In this design, the output shaft assembly further includes a first synchronizer disposed between the third-speed output gear and the fourth-speed output gear, a second synchronizer, and a third synchronizer.

When the vehicle needs to use the third gear to advance, the joint sleeve on the first synchronizer slides towards one side of the third gear output gear, when the joint teeth of the third gear output gear are meshed with the joint sleeve of the first synchronizer, the third gear output gear drives the joint sleeve of the first synchronizer to rotate, the joint sleeve of the first synchronizer drives the spline hub of the first synchronizer to rotate, so that the spline hub drives the output shaft to rotate, and the function that the vehicle advances in the third gear is achieved.

When the vehicle needs to use the fourth gear to advance, the joint sleeve on the first synchronizer slides towards one side of the fourth gear output gear, when the joint teeth of the fourth gear output gear are meshed with the joint sleeve of the first synchronizer, the fourth gear output gear drives the joint sleeve of the first synchronizer to rotate, the joint sleeve of the first synchronizer drives the spline hub of the first synchronizer to rotate, so that the spline hub drives the output shaft to rotate, and the function that the vehicle advances in the fourth gear is achieved.

When the vehicle needs to use the first gear to advance, the joint sleeve on the second synchronizer slides towards one side of the first gear output gear, when the joint tooth of the first gear output gear is meshed with the joint sleeve of the second synchronizer, the first gear output gear drives the joint sleeve of the second synchronizer to rotate, the joint sleeve of the second synchronizer drives the spline hub of the second synchronizer to rotate, so that the spline hub drives the output shaft to rotate, and the function that the vehicle advances in the first gear is achieved.

When the vehicle needs to use the second gear to advance, the joint sleeve on the second synchronizer slides towards one side of the second gear output gear, when the joint teeth of the second gear output gear are meshed with the joint sleeve of the second synchronizer, the second gear output gear drives the joint sleeve of the second synchronizer to rotate, the joint sleeve of the second synchronizer drives the spline hub of the second synchronizer to rotate, so that the spline hub drives the output shaft to rotate, and the function that the vehicle advances in the second gear is achieved.

When the vehicle needs to travel in the sixth gear, the engaging sleeve on the third synchronizer slides towards one side of the sixth gear output gear, when engaging teeth of the sixth gear output gear are engaged with the engaging sleeve of the third synchronizer, the sixth gear output gear drives the engaging sleeve of the third synchronizer to rotate, and the engaging sleeve of the third synchronizer drives the spline hub of the third synchronizer to rotate so that the spline hub drives the output shaft to rotate, thereby realizing the function that the vehicle travels in the sixth gear.

The input gear can be used as a fifth-gear output gear, when a vehicle needs to use a fifth gear to advance, the engaging sleeve on the third synchronizer slides towards one side of the input gear, when engaging teeth of the input gear are engaged with the engaging sleeve of the third synchronizer, the input gear drives the engaging sleeve of the third synchronizer to rotate, and the engaging sleeve of the third synchronizer drives the spline hub of the third synchronizer to rotate so that the spline hub drives the output shaft to rotate, so that the function that the vehicle advances in the fifth gear is realized.

The stroke less than or equal to 10mm that sets up first synchronous ware, second synchronous ware and third synchronous ware in this application to realize the miniaturization of first synchronous ware, second synchronous ware and third synchronous ware, make the structure in the gearbox compacter, further reduce the axial installation dimension of gearbox.

The utility model discloses the second aspect provides a vehicle, gearbox among the above-mentioned arbitrary technical scheme, consequently the utility model provides a vehicle has the whole benefits of the gearbox that provides among the above-mentioned arbitrary technical scheme.

The vehicle still includes the assembly portion, and the gearbox can be dismantled and assembled in the assembly portion, and the assembly portion plays the bearing effect to the gearbox, avoids the gearbox to rock in the vehicle.

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 structural view of a gearbox according to an embodiment of the present invention;

fig. 2 shows a schematic structural view of a gearbox according to another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names of fig. 1 and fig. 2 is:

1 intermediate shaft, 2 first gear teeth, 3 reverse gear teeth, 4 output shafts, 5 first gear output gears, 6 reverse gear steering wheels, 7 reverse gear output gears, 8 climbing gear gears, 9 spline hubs, 10 engaging sleeves, 11 third gear transmission gears, 12 fourth gear transmission gears, 13 third gear output gears, 14 fourth gear output gears, 15 sixth gear transmission gears, 16 second gear teeth, 17 second gear output gears, 18 sixth gear output gears, 19 input shafts, 20 input gears, 21 driven gears, 22 first synchronizers, 23 second synchronizers and 24 third synchronizers.

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.

A gearbox provided according to some embodiments of the first aspect of the present invention is described below with reference to fig. 1 and 2.

A gearbox, as shown in figure 1, comprising: the middle shaft assembly comprises a middle shaft 1 and a middle speed transmission gear assembly, the middle speed transmission gear assembly is sleeved on the middle shaft 1, the middle shaft 1 comprises a gear tooth 2 and a reverse gear tooth 3, and the middle speed transmission gear assembly is positioned between the gear tooth 2 and the reverse gear tooth 3; wherein, one side of the reverse gear 3 is provided with a tool withdrawal groove, and part of the medium-speed transmission gear assembly is arranged at the tool withdrawal groove.

The gearbox that this embodiment provided includes the jackshaft subassembly, and one keeps off tooth 2 and 3 integrated into one piece of reverse gear tooth on jackshaft 1's axis body, when accomplishing the processing of reverse gear tooth 3, can be formed with the tool withdrawal groove in one side of reverse gear tooth 3 when carrying out the tool withdrawal operation, because the intermediate speed drive gear subassembly is located one and keeps off between tooth 2 and the reverse gear tooth 3 for the tool withdrawal groove can be buried underground in the gear hole of intermediate speed drive gear subassembly.

It can be understood that, in the related art, a blocking tooth 2 is arranged on one side of a reverse gear tooth 3, and the blocking tooth 2 is also integrally formed on a shaft body of an intermediate shaft 1, because of the existence of a tool withdrawal groove, the blocking tooth 2 cannot be processed and formed at the tool withdrawal groove, and a blocking tooth 2 needs to be processed and formed on the shaft body without the tool withdrawal groove, which causes waste of a space of a tool withdrawal groove area between the blocking tooth 2 and the reverse gear tooth 3, in the application, a medium-speed transmission gear assembly is arranged between the blocking tooth 2 and the reverse gear tooth 3, on one hand, the tool withdrawal groove is not needed to be avoided when the first blocking tooth 2 is processed and formed, on the other hand, because the transmission gear assembly is sleeved on the intermediate shaft 1, the tool withdrawal groove is not needed to be avoided, the tool withdrawal groove is buried in the medium-speed transmission assembly, the axial length of the shaft body is reduced, and the rigidity of the intermediate shaft 1 is, axial structure is compacter, and then has reduced the volume of gearbox, thereby under the condition that increases the gearbox fender position, the gearbox in this application is the same basically with the gearbox axial installation size among the correlation technique, be favorable to increasing the gearbox adaptation in most vehicle of fender position, under the condition that gearbox axial installation size does not change basically, increase the fender position of gearbox, make the drive ratio scope of gearbox wider, satisfy the demand of different customers to the dynamic property, the fuel economy of gearbox and the cost of purchasing.

In the above embodiment, as shown in fig. 1, the gearbox further comprises an output shaft assembly comprising: an output shaft 4; the first gear output gear 5 is sleeved on the output shaft 4 and meshed with the first gear 2; and the medium-speed output gear assembly is sleeved on the output shaft 4 and meshed with the medium-speed transmission gear assembly.

In this embodiment, the output shaft assembly includes an output shaft 4, a first gear output gear 5 and a middle speed output gear assembly, the first gear output gear 5 and the middle speed output gear assembly are both sleeved on the output shaft 4, in order to meet the high torque when the vehicle travels using the first gear, the tooth diameter of the first gear output gear 5 is larger than the tooth diameter of each output gear in the middle speed output gear assembly, the first gear output gear 5 is meshed with the first gear tooth 2, because the tooth diameter of the first gear output gear 5 is larger, the transmission between the first gear output gear 5 and the first gear tooth 2 is larger, and further, the first gear output gear 5 can drive the output shaft 4 to output larger torque.

The medium speed output gear assembly meshes with the medium speed drive gear assembly, because the tooth footpath of each gear among the medium speed output gear assembly is less for the medium speed output gear assembly can realize high rotational speed, and then makes the medium speed output gear assembly can drive 4 high-speed rotations of output shaft.

In the above embodiment, the transmission case further includes: the reverse gear steering wheel 6 is meshed with the reverse gear teeth 3; the output shaft assembly also comprises a reverse gear output gear 7, and the reverse gear output gear 7 is sleeved on the output shaft 4 and is meshed with the reverse gear steering wheel 6; wherein, the reverse gear steering wheel 6 is a single gear.

In this embodiment, reverse gear steering wheel 6 meshes with reverse gear tooth 3, reverse gear steering wheel 6 can rotate under reverse gear tooth 3's drive, reverse gear steering wheel 6 still meshes with reverse gear output gear 7, make reverse gear steering wheel 6 drive reverse gear output gear 7 and rotate, set up reverse gear steering wheel 6 between reverse gear tooth 3 and reverse gear output gear 7, reverse gear steering wheel 6 can realize the switching-over function, make reverse gear output gear 7 reverse gear opposite with other output gear's turn to, thereby make reverse gear output gear 7 can drive output shaft 4 antiport, the function that the vehicle was shifted forward has been realized.

Further, because the existence of tool withdrawal groove among the correlation technique, need regard as duplicate gear with reversing the helm 6, owing to the tool withdrawal groove buries underground in intermediate speed drive assembly in this application to set up reversing the helm 6 and just can realize driven function for the single-gang gear, reduced reversing the processing quantity of helm 6, effectively practiced thrift the processing cost, owing to set up reversing the helm 6 and to the single-gang gear, make reversing the volume of helm 6 reduce, and then make the structure between the gearbox inner part compacter.

As shown in fig. 1, in the above embodiment, the output shaft assembly further includes: climbing fender gear 8, climbing fender gear 8 cover is located on output shaft 4, is located between intermediate speed output gear subassembly and the output gear 7 that reverses gear, meshes with reverse gear tooth 3 mutually.

In this embodiment, the output shaft assembly further includes a climbing gear 8, the climbing gear 8 is located between the intermediate speed output gear assembly and the reverse gear output gear 7, it can be understood that the climbing gear 8 can be used when the vehicle runs to the uphill road section, the transmission ratio range of the transmission box is wider by adding the climbing gear 8, the practicability of the transmission box is increased, because the tool withdrawal groove is embedded in the intermediate speed transmission assembly, the size of the transmission box axial installation gear is basically unchanged by adding the climbing gear 8, and the axial occupation space of the transmission box is reduced.

In addition, the climbing gear 8 is meshed with the reverse gear 3, so that the tooth form meshed with the climbing gear 8 does not need to be separately arranged on the intermediate shaft 1, the forming quantity of tool withdrawal grooves is reduced, and the condition that the tool withdrawal grooves waste space is avoided.

In the above embodiment, the method further includes: the sliding gear sleeve comprises a spline hub 9 and a joint sleeve 10, the spline hub 9 is sleeved on the output shaft 4 and located between the reverse gear output gear 7 and the climbing gear 8, and the joint sleeve 10 is sleeved on the outer side of the spline hub 9 and can slide along the axial direction of the output shaft 4 relative to the spline hub 9 to be meshed with joint teeth of the reverse gear output gear 7 or joint teeth of the climbing gear 8.

In this embodiment, the sliding gear sleeve includes a spline hub 9 and an engaging sleeve 10, the spline hub 9 is sleeved on the output shaft 4, the spline hub 9 and the output shaft 4 are fixed in the axial direction and the circumferential direction, so that the spline hub 9 can drive the output shaft 4 to rotate, the engaging teeth of the reverse gear output gear 7 and the engaging teeth of the climbing gear 8 share one engaging sleeve 10, the engaging sleeve 10 can slide relative to the spline hub 9 in the axial direction of the output shaft 4, the engaging sleeve 10 and the spline hub 9 are fixed in the circumferential direction of the output shaft 4, when the vehicle needs to travel using reverse gear, the engaging sleeve 10 slides towards one side of the reverse gear output gear 7, when the engaging teeth of the reverse gear output gear 7 are engaged with the engaging sleeve 10, the reverse gear output gear 7 drives the engaging sleeve 10 to rotate, and the engaging sleeve 10 drives the spline hub 9 and the output shaft 4 to rotate, thereby realizing the function that the vehicle travels in reverse.

When the vehicle needs to use the climbing gear to advance, clutch collar 10 slides towards one side of climbing gear 8, and when the engaging tooth of climbing gear 8 and clutch collar 10 meshing, climbing gear 8 drives clutch collar 10 and rotates, and clutch collar 10 drives spline hub 9 and rotates and makes spline hub 9 drive output shaft 4 rotate, realizes that the vehicle keeps off the function that keeps off the position and advance with the climbing gear.

Because reverse gear output gear 7 and climbing gear 8's rotational speed is lower, need not set up adapter sleeve 10 to realize the meshing again with reverse gear output gear 7 and the synchronous rotational speed of climbing gear 8, but adapter sleeve 10 directly realizes the meshing with low-speed pivoted reverse gear output gear 7 and climbing gear 8 in the removal process, compare in the synchronous ware among the correlation technique, the slip tooth cover simple structure in this application reduces part quantity, thereby can reduce occupation space, make the structure of gearbox compacter.

In the above embodiment, the medium speed transmission gear assembly includes the three-speed transmission gear 11 and the four-speed transmission gear 12; the medium-speed output gear assembly comprises a three-gear output gear 13 and a four-gear output gear 14; the third gear transmission gear 11 is meshed with the third gear output gear 13, and the fourth gear transmission gear 12 is meshed with the fourth gear output gear 14.

In this embodiment, the three-gear transmission gear 11 is engaged with the three-gear output gear 13, so that the three-gear transmission gear 11 can drive the three-gear output gear 13 to rotate, the four-gear transmission gear 12 is engaged with the four-gear output gear 14, so that the four-gear transmission gear 12 can drive the four-gear output gear 14 to rotate, the three-gear output gear 13 or the four-gear transmission gear 12 drives the output shaft 4 to rotate, so that the output shaft 4 can rotate at different rotating speeds, and the tool withdrawal groove can be embedded in the three-gear transmission gear 11 or the four-gear transmission gear 12, it can be understood that since the three-gear transmission gear 11 or the four-gear transmission gear 12 has a large contact area with the intermediate shaft 1, the tool withdrawal groove is embedded in the three-gear transmission gear 11 or the four-gear transmission gear 12, and is not easy to affect the transmission stability of the three-gear transmission gear 11 or the four, the rigidity of the intermediate shaft 1 is improved.

In the above embodiment, the intermediate shaft assembly further includes a six-gear transmission gear 15, the six-gear transmission gear 15 is sleeved on the intermediate shaft 1, the intermediate shaft 1 is provided with two gear teeth 16, one side of each of the two gear teeth 16 is a first gear tooth 2, and the other side of each of the two gear teeth is the six-gear transmission gear 15; the output shaft assembly further comprises a second-gear output gear 17 and a sixth-gear output gear 18, the second-gear output gear 17 is meshed with the second-gear teeth 16, and the sixth-gear output gear 18 is meshed with the sixth-gear transmission gear 15.

In this embodiment, a first blocking tooth 2 is engaged with a first blocking output gear 5, so that the first blocking tooth 2 can drive the first blocking output gear 5 to rotate, a second blocking tooth 16 is engaged with a second blocking output gear 17, so that the second blocking tooth 16 can drive the second blocking output gear 17 to rotate, a sixth blocking transmission gear 15 is engaged with a sixth blocking output gear 18, so that the sixth blocking transmission gear 15 can drive the sixth blocking output gear 18 to rotate, the first blocking tooth 2 and the second blocking tooth 16 are integrally formed on a shaft body of an intermediate shaft 1, a synchronizer and other components are arranged between the first blocking tooth 2 and the second blocking tooth 16, so that a tool withdrawal groove for processing and forming the first blocking tooth 2 does not waste space, the diameter of the shaft body where the sixth blocking transmission gear 15 is assembled is smaller than that of the shaft body where the second blocking tooth 16 is processed, so that a tool withdrawal function can be directly completed without forming the tool withdrawal groove on the shaft body, the positions of the first-gear output gear 5, the second-gear output gear 17 and the third-gear output gear 13 are reasonably arranged, so that the structure in the gearbox is more compact, the space utilization rate is improved, and the occupied space of the gearbox is effectively reduced.

In the above embodiment, as shown in fig. 1 and fig. 2, the transmission further includes: the input shaft assembly comprises an input shaft 19 and an input gear 20, and the input gear 20 is sleeved on the input shaft 19; the intermediate shaft assembly further comprises a driven gear 21, the driven gear 21 is sleeved on the intermediate shaft 1, and the driven gear 21 is meshed with the input gear 20.

In this embodiment, the input shaft assembly includes input shaft 19 and input gear 20, input gear 20 is located on input shaft 19, input gear 20 and input shaft 19 are fixed along circumference, input shaft 19 can drive input gear 20 when rotating, input gear 20 meshes with driven gear 21 on jackshaft 1, driven gear 21 and jackshaft 1 are fixed along circumference, input gear 20 drives driven gear 21 and rotates, driven gear 21 can drive jackshaft 1 and rotate, thereby realized input shaft 19 to jackshaft 1's power transmission.

In the above embodiment, the output shaft assembly further includes: a first synchronizer 22, the first synchronizer 22 being disposed between the third-gear output gear 13 and the fourth-gear output gear 14; a second synchronizer 23, the second synchronizer 23 being disposed between the first-gear output gear 5 and the second-gear output gear 17; a third synchronizer 24, the third synchronizer 24 being disposed between the six-speed output gear 18 and the input gear 20; wherein, the stroke of the first synchronizer 22, the second synchronizer 23 and the third synchronizer 24 is less than or equal to 10 mm.

In this embodiment, the output shaft assembly further includes a first synchronizer 22, a second synchronizer 23, and a third synchronizer 24, and the first synchronizer 22 is disposed between the third-speed output gear 13 and the fourth-speed output gear.

When the vehicle needs to use the third gear to travel, the engaging sleeve on the first synchronizer 22 slides towards one side of the third gear output gear 13, when the engaging teeth of the third gear output gear 13 are engaged with the engaging sleeve of the first synchronizer 22, the third gear output gear 13 drives the engaging sleeve of the first synchronizer 22 to rotate, and the engaging sleeve of the first synchronizer 22 drives the spline hub of the first synchronizer 22 to rotate so that the spline hub drives the output shaft 4 to rotate, thereby realizing the function that the vehicle travels in the third gear.

When the vehicle needs to travel in the fourth gear, the engaging sleeve on the first synchronizer 22 slides towards one side of the fourth-gear output gear 14, when the engaging teeth of the fourth-gear output gear 14 are engaged with the engaging sleeve of the first synchronizer 22, the fourth-gear output gear 14 drives the engaging sleeve of the first synchronizer 22 to rotate, and the engaging sleeve of the first synchronizer 22 drives the spline hub of the first synchronizer 22 to rotate so that the spline hub drives the output shaft 4 to rotate, thereby realizing the function that the vehicle travels in the fourth gear.

When the vehicle needs to use the first gear to travel, the engaging sleeve on the second synchronizer 23 slides towards one side of the first gear output gear 5, when the engaging teeth of the first gear output gear 5 are engaged with the engaging sleeve of the second synchronizer 23, the first gear output gear 5 drives the engaging sleeve of the second synchronizer 23 to rotate, and the engaging sleeve of the second synchronizer 23 drives the spline hub of the second synchronizer 23 to rotate so that the spline hub drives the output shaft 4 to rotate, thereby realizing the function that the vehicle travels in the first gear.

When the vehicle needs to use the second gear to travel, the engaging sleeve on the second synchronizer 23 slides towards one side of the second gear output gear 17, when the engaging teeth of the second gear output gear 17 are engaged with the engaging sleeve of the second synchronizer 23, the second gear output gear 17 drives the engaging sleeve of the second synchronizer 23 to rotate, and the engaging sleeve of the second synchronizer 23 drives the spline hub of the second synchronizer 23 to rotate so that the spline hub drives the output shaft 4 to rotate, thereby realizing the function that the vehicle travels in the second gear.

When the vehicle needs to travel in the sixth gear, the engaging sleeve on the third synchronizer 24 slides towards one side of the sixth gear output gear 18, when the engaging teeth of the sixth gear output gear 18 are engaged with the engaging sleeve of the third synchronizer 24, the sixth gear output gear 18 drives the engaging sleeve of the third synchronizer 24 to rotate, and the engaging sleeve of the third synchronizer 24 drives the spline hub of the third synchronizer 24 to rotate, so that the spline hub drives the output shaft 4 to rotate, and the function that the vehicle travels in the sixth gear is achieved.

The input gear 20 can be used as a fifth-gear output gear, when the vehicle needs to travel in a fifth gear, the engaging sleeve on the third synchronizer 24 slides towards one side of the input gear 20, when the engaging teeth of the input gear 20 are engaged with the engaging sleeve of the third synchronizer 24, the input gear 20 drives the engaging sleeve of the third synchronizer 24 to rotate, and the engaging sleeve of the third synchronizer 24 drives the spline hub of the third synchronizer 24 to rotate, so that the spline hub drives the output shaft 4 to rotate, and the function that the vehicle travels in the fifth gear is realized.

Specifically, the transmission gear that cup joints on the jackshaft 1 passes through spline fit with the axis body of jackshaft 1 for jackshaft 1 and transmission gear can synchronous rotation, and the output gear that cup joints on the output shaft 4 passes through the needle bearing cooperation with the axis body of output shaft 4, makes output shaft 4 can follow circumference relative rotation with the axis body of output shaft 4, need set up the synchronizer promptly and output gear cooperation just can make output shaft 4 and output gear synchronous rotation.

The first synchronizer 22, the second synchronizer 23, and the third synchronizer 24 in this embodiment may be single cone synchronizers or double cone synchronizers.

In this embodiment, each of the first synchronizer 22, the second synchronizer 23, and the third synchronizer 24 includes a gear hub, a gear sleeve, two synchronizing rings, two engaging teeth, and a slider, the gear sleeve is sleeved outside the gear hub, the gear sleeve can move along the axial direction of the gear hub, the two synchronizing rings are symmetrically disposed on two sides of the gear hub, the two engaging teeth are also disposed on two sides of the gear hub, the slider is clamped between the two synchronizing rings, and the gear sleeve can drive the slider to move during the moving process, so that the synchronizing rings are driven by the slider to move, thereby implementing the function of engaging the gears, in this embodiment, the structure of the synchronizing rings is thinned, and the structure of the engaging teeth is adjusted, so that the strokes of the first synchronizer 22, the second synchronizer 23, and the third synchronizer 24 disposed in this embodiment are less than or equal to 10mm, thereby implementing the miniaturization of the first synchronizer 22, the second synchronizer 23, and the third synchronizer 24, the structure in the gearbox is more compact, and the axial installation size of the gearbox is further reduced.

An embodiment of the second aspect of the present invention provides a vehicle, comprising a gearbox according to any of the above embodiments, and therefore the present invention provides a vehicle having all the benefits of a gearbox provided according to any of the above embodiments.

The vehicle still includes the assembly portion, and the gearbox can be dismantled and assembled in the assembly portion, and the assembly portion plays the bearing effect to the gearbox, avoids the gearbox to rock in the vehicle.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., 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 present disclosure, the schematic representations of the terms used above 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 (10)

1. A transmission, comprising:

the intermediate shaft assembly comprises an intermediate shaft and an intermediate speed transmission gear assembly, the intermediate speed transmission gear assembly is sleeved on the intermediate shaft, the intermediate shaft comprises a blocking tooth and a reverse blocking tooth, and the intermediate speed transmission gear assembly is positioned between the blocking tooth and the reverse blocking tooth;

one side of the reverse gear is provided with a tool withdrawal groove, and part of the medium-speed transmission gear assembly is arranged at the tool withdrawal groove.

2. The transmission of claim 1, further comprising an output shaft assembly, the output shaft assembly comprising:

an output shaft;

the first gear output gear is sleeved on the output shaft and meshed with the first gear tooth;

and the medium-speed output gear assembly is sleeved on the output shaft and meshed with the medium-speed transmission gear assembly.

3. The transmission of claim 2, further comprising:

the reverse gear steering wheel is meshed with the reverse gear teeth;

the output shaft assembly further comprises a reverse gear output gear, and the reverse gear output gear is sleeved on the output shaft and meshed with the reverse gear steering wheel;

wherein, reverse gear steering wheel is the simplex gear.

4. The transmission of claim 3, wherein the output shaft assembly further comprises:

the climbing gear is sleeved on the output shaft and positioned between the medium-speed output gear assembly and the reverse gear output gear and meshed with the reverse gear.

5. The transmission of claim 4, further comprising:

the sliding gear sleeve comprises a spline hub and a joint sleeve, the spline hub is sleeved on the output shaft and located between the reverse gear output gear and the climbing gear, and the joint sleeve is sleeved on the outer side of the spline hub and can slide along the axial direction of the output shaft relative to the spline hub so as to be meshed with the joint teeth of the reverse gear output gear or the joint teeth of the climbing gear.

6. The gearbox of claim 2,

the medium-speed transmission gear assembly comprises a three-gear transmission gear and a four-gear transmission gear;

the medium-speed output gear assembly comprises a three-gear output gear and a four-gear output gear;

the three-gear transmission gear is meshed with the three-gear output gear, and the four-gear transmission gear is meshed with the four-gear output gear.

7. The gearbox of claim 6,

the intermediate shaft assembly further comprises a six-gear transmission gear, the six-gear transmission gear is sleeved on the intermediate shaft, two gear teeth are arranged on the intermediate shaft, one side of each gear tooth is the first gear tooth, and the other side of each gear tooth is the six-gear transmission gear;

the output shaft assembly further comprises a second-gear output gear and a sixth-gear output gear, the second-gear output gear is meshed with the second-gear teeth, and the sixth-gear output gear is meshed with the sixth-gear transmission gear.

8. The transmission of claim 7, further comprising:

the input shaft assembly comprises an input shaft and an input gear, and the input gear is sleeved on the input shaft;

the intermediate shaft assembly further comprises a driven gear, the driven gear is sleeved on the intermediate shaft, and the driven gear is meshed with the input gear.

9. The transmission of claim 8, wherein the output shaft assembly further comprises:

the first synchronizer is arranged between the third-gear output gear and the fourth-gear output gear;

the second synchronizer is arranged between the first gear output gear and the second gear output gear;

a third synchronizer disposed between the six-speed output gear and the input gear;

wherein the first synchronizer, the second synchronizer and the third synchronizer have a stroke of 10mm or less.

10. A vehicle comprising a gearbox according to any of claims 1 to 9.

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