CN209909085U

CN209909085U - Speed change device with composite gear structure

Info

Publication number: CN209909085U
Application number: CN201920603214.6U
Authority: CN
Inventors: 宋骏; 柴旭; 许永达; 熊玉杰; 裴利兵
Original assignee: Shanghai Automobile Gear Works
Current assignee: Shanghai Automobile Gear Works
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-01-07
Anticipated expiration: 2029-04-29

Abstract

A transmission having a compound gear structure, comprising: gearbox casing and set up input shaft assembly, jackshaft assembly, differential mechanism and the driving motor inside it, wherein: the input shaft assembly includes: the input shaft is connected with the driving motor, and the gear shifting mechanism is respectively connected with the first-gear driving gear and the second-gear driving gear; the jackshaft assembly includes: the jackshaft with set up compound gear, transition driving gear, the one that it was last keep off driven gear, compound gear with keep off the driving gear meshing, the one keeps off driven gear and keep off the driving gear meshing. The utility model discloses a parking mechanism and two driven gear parking mechanism integrated designs reduce reducing gear box part figure, have reduced the mounting process and the station of parking gear, have solved the positive and negative mistake proofing problem of dress in the parking tooth assembling process, have optimized the assembly process and the station of reducing gear box, have reduced the reducing gear box cost.

Description

Speed change device with composite gear structure

Technical Field

The utility model relates to a technique in the electric automobile field specifically is a speed change gear with composite gear structure.

Background

In order to ensure the safe driving of the automobile, two parking systems are generally designed on the automobile to ensure the safety of the automobile in the parking process. A parking system is generally designed in the transmission, and braking of the automobile is achieved by locking a power transmission line. In the design of a brake system of a reduction gearbox, a parking gear serves as a mature parking part at present and plays a vital role in vehicle braking. In the existing design system, the parking gear is often designed as a separate part, and the parking gear is fixedly arranged on the reduction gearbox shaft system to realize the parking function. The parking gears can be generally arranged on an input shaft, an intermediate shaft and a differential end of the reduction gearbox, and the rotating speed and the load are different in the parking process considering different arrangement of the parking gears. When the gear is arranged on the input shaft, the rotating speed is high, and the load is low. When the differential is arranged at the end of the differential, the rotating speed is low, and the load is large. When the device is arranged on the intermediate shaft, the rotating speed and the load are moderate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to the above-mentioned that prior art exists, provides a speed change gear with composite gear structure, through parking mechanism and two driven gear parking mechanism integrated designs, reduces reducing gear box part figure, and composite gear's mechanical properties is strengthened simultaneously, has reduced the mounting process and the station of parking gear, has solved the positive and negative mistake proofing problem in the parking tooth assembling process.

The utility model discloses a realize through following technical scheme:

the utility model discloses a: gearbox casing and set up input shaft assembly, jackshaft assembly, differential mechanism and the driving motor inside it, wherein: the input shaft assembly includes: the input shaft is connected with the driving motor, and the gear shifting mechanism is respectively connected with the first-gear driving gear and the second-gear driving gear; the jackshaft assembly includes: the jackshaft with set up compound gear, transition driving gear, the one that it was last keep off driven gear, compound gear with keep off the driving gear meshing, the one keeps off driven gear and keep off the driving gear meshing.

The compound gear includes: parking gear and two driven gear of integral structure, wherein: the parking gear is concentrically connected with the secondary driven gear.

The differential is provided with a main reducer gear which is meshed with the transition driving gear.

The gearbox shell comprises a left gearbox shell and a right gearbox shell, and bearings are symmetrically arranged in the left gearbox shell and the right gearbox shell.

The parking actuating mechanism for parking and unlocking is arranged outside the gearbox shell and is driven by a motor or a manual machine.

Technical effects

Compared with the prior art, the utility model discloses a parking mechanism and two driven gear parking mechanism integrated designs reduce reducing gear box part figure, and composite gear's mechanical properties obtains strengthening simultaneously, has reduced parking gear's mounting process and station, has solved the positive and negative mistake proofing problem of dress in the parking tooth assembling process, has optimized the assembly process and the station of reducing gear box, has reduced the reducing gear box cost.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the integrated structure of the parking gear and the secondary driven gear of the present invention;

in the figure: the gear shifting device comprises a driving motor 1, a bearing 2, a right shell 3, a first gear driving gear 4, a gear shifting mechanism 5, a second gear driving gear 6, a left shell 7, an input shaft 8, a compound gear 9, a transition driving gear 10, a parking executing mechanism 11, an intermediate shaft 12, wheels 13, a differential 14, a main reducer gear 15, a first gear driven gear 16, a second gear driven gear 17, a parking gear 18, an input shaft assembly 19, an intermediate shaft assembly 20 and a transmission shell 21.

Detailed Description

As shown in fig. 1, a transmission device with a composite structure gear according to the present embodiment includes: transmission housing 21, input shaft assembly 19, intermediate shaft assembly 20, differential 14 and drive motor 1, wherein: the input shaft assembly 19, the intermediate shaft assembly 20 and the differential 14 are arranged in parallel in the transmission housing 21, and the driving motor 1 is connected with the input shaft assembly 19 and arranged outside the transmission housing 21.

The transmission case 21 includes: a left housing 7 and a right housing 3 connected.

The left shell 7 is provided with a parking executing mechanism 11, and the parking executing mechanism 11 is driven by a motor or a manual machine to execute parking and unlocking functions of the reduction gearbox.

And bearings 2 are symmetrically arranged in the bearing seats of the left shell 7 and the right shell 3.

The input shaft assembly 19 includes: input shaft 8 with set up on it keep off driving gear 4, gearshift 5, two keep off driving gear 6, wherein: the input shaft 8 is connected with the driving motor 1, and the gear shifting mechanism 5 is respectively connected with the first-gear driving gear 4 and the second-gear driving gear 6.

The gear shifting mechanism 5 is fixedly arranged on the input shaft 8 through a spline or a press fitting mode and is used for realizing power transmission of the reduction gearbox in different states of first gear, second gear and neutral gear.

The intermediate shaft assembly 20 includes: the intermediate shaft 12 and the compound gear 9, the transition driving gear 10 and the first gear driven gear 16 which are arranged on the intermediate shaft.

The compound gear 9 is specifically a parking gear 18 and a secondary driven gear 17 which are of an integrated structure, wherein: the parking gear 18 is concentrically connected to the secondary driven gear 17.

The second gear driven gear 17 is meshed with the second gear driving gear 6, and the first gear driven gear 16 is meshed with the first gear driving gear 4.

The differential 14 is provided with a main reducer gear 15.

The main reducer gear 15 is meshed with the transition driving gear 10.

The differential 14 is connected with the half shaft of the whole vehicle through a spline, and transmits power to the wheels 13 to realize the differential function.

The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.

Claims

1. A transmission having a compound gear structure, comprising: gearbox casing and set up input shaft assembly, jackshaft assembly, differential mechanism and the driving motor inside it, wherein: the input shaft assembly includes: the input shaft is connected with the driving motor, and the gear shifting mechanism is respectively connected with the first-gear driving gear and the second-gear driving gear; the jackshaft assembly includes: the intermediate shaft is provided with a composite gear, a transition driving gear and a first-gear driven gear which are arranged on the intermediate shaft, the composite gear is meshed with a second-gear driving gear, and the first-gear driven gear is meshed with a first-gear driving gear;

the composite gear is characterized in that: parking gear and two driven gear of integral structure, wherein: the parking gear is concentrically connected with the secondary driven gear.

2. The apparatus as claimed in claim 1 wherein said differential is provided with a final drive gear, said final drive gear being in meshing engagement with said transition drive gear.

3. The device of claim 1, wherein the gearbox housing comprises a left gearbox housing and a right gearbox housing, and bearings are symmetrically arranged in the left gearbox housing and the right gearbox housing.

4. The device as claimed in claim 1, wherein a parking actuator for parking and unlocking is provided outside the gearbox housing, and the parking actuator is driven by a motor or a manual machine.