CN207725155U - A kind of through driving medium bridge structure of offroad vehicle - Google Patents
A kind of through driving medium bridge structure of offroad vehicle Download PDFInfo
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- CN207725155U CN207725155U CN201721778607.8U CN201721778607U CN207725155U CN 207725155 U CN207725155 U CN 207725155U CN 201721778607 U CN201721778607 U CN 201721778607U CN 207725155 U CN207725155 U CN 207725155U
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Abstract
The utility model is related to a kind of through driving medium bridge structure of offroad vehicle, including axle housing, connect with axle housing side main gearbox assembly, connect with axle housing left half axle assembly, right axle shaft assembly, the inter-wheel differential assembly for being located in the middle part of axle housing and being connected with main gearbox assembly；The main shaft that main gearbox assembly includes bevel housing, is located in final drive casing body；Further include the main transmission sub-unit being located in final drive casing body and inter-axle differential sub-unit；Point-blank, the lower end of the input shaft is connected the axis of the axis of one input shaft and the main shaft with the inter-axle differential sub-unit, and the upper end of the input shaft and the transfer gear of offroad vehicle are connected；Main shaft is connected with driving flange fork, delivers torque to rear axle.The utility model can shorten the length of transmission shaft, reduce bridge packet, ensure the installation of transmission shaft, while keeping the good passability of automobile, improve the usage economy of automobile.
Description
Technical field
The utility model is related to cross country chassis, and in particular to a kind of through driving medium bridge structure of offroad vehicle.
Background technology
Currently, the breakaway-element medium bridge structure that offroad vehicle uses, generally existing bridge packet is bigger, and the small passability of structure is good.Peace
If dress is not limited by spatial position and transmission shaft length, transfer mode is：Power passes through transmission shaft and shaft space difference speed
Input disc connection in device assembly, the internal spline of input disc engages with the external splines of main shaft, the external splines of main shaft and cross axle
Internal spline engages；1）Drive the perforation shaft gear rotation in main shaft assembly on inter-axle differential, the internal spline for penetrating through shaft gear logical
It crosses and is engaged with perforation axis external splines, power is transmitted to by rear axle by inter-axle differential；2）Drive shaft space difference speed in main shaft assembly
Active roller gear rotation on device, is engaged with the driven cylindrical gear on main driving assembly by active roller gear, is driven
Active conical gear on main driving assembly is engaged with the driven bevel gear on inter-wheel differential assembly, passes through inter-wheel differential
Pressure differential lock engage power be transmitted to left and right semiaxis with tire on the drive wheels.Inter-wheel differential uses mandatory difference in this structure
Speed.
This disconnection driving jackshaft plays the role of preferable power distribution in multi-joint driving jackshaft and power transmits, but
The structure is since bridge packet is big, when user is on the basis of original vehicle spatial position is constant, to improve vehicle performance, it is desirable to reduce
With shortening transmission shaft, this structure transmission shaft difficult arrangement.
Invention content
The purpose of this utility model is to provide a kind of through driving medium bridge structure of offroad vehicle, can shorten transmission shaft
Length reduces bridge packet and ensures the installation of transmission shaft under the premise of not carrying out big change to vehicle, while keeping automobile
Good passability improves the usage economy of automobile, meets user demand.
Side in the middle part of the through driving medium bridge structure of a kind of offroad vehicle described in the utility model, including axle housing and axle housing
The main gearbox assembly of connection, the right axle shaft assembly being connect with axle housing right end, is located at the left half axle assembly being connect with axle housing left end
The inter-wheel differential assembly being connected in the middle part of axle housing and with main gearbox assembly；
The main gearbox assembly includes bevel housing, is located in final drive casing body main shaft is matched with the main shaft
Close the active roller gear and driving flange fork of connection；Further include the main transmission sub-unit and between centers being located in final drive casing body
Differential mechanism sub-unit；It is characterized in that：
Point-blank, the upper end of the input shaft is equipped with first to the axis of the axis of one input shaft and the main shaft
Upper spline, lower end are equipped with first time spline；First time spline is connected with the inter-axle differential sub-unit, described
The transfer gear of first upper spline and offroad vehicle is connected, with input torque；
The upper end of the main shaft is equipped with the second upper spline, middle part is equipped with middle spline, lower end is equipped with second time spline；Institute
It states the second upper spline to be connected with inter-axle differential sub-unit, second time spline connects with driving flange fork cooperation
It connects, by torque 1:1 passes to rear axle.
Further, the inter-axle differential sub-unit includes inter-axle differential shell, is located at the inter-axle differential shell
In middle part and the cross axle of matched connection, with the cross axle be connected four planetary gears, be located at the between centers
In differential casing top and the main shaft bevel gear of matched connection, the of the internal spline of the main shaft bevel gear and the main shaft
Two upper splines coordinate, and the centre bore of the cross axle coordinates with position on the upper side in the middle part of the main shaft；Further include internal spline and institute
State the straight bevel gear of the middle spline fitted on main shaft；The centre bore of the lower part of the straight bevel gear and the active roller gear
It is connected.
Further, the inter-wheel differential assembly includes inter-wheel differential shell, is connected to an inter-wheel differential shell left side
The left end cap at end, the right end cap for being connected to inter-wheel differential shell right end, one be located at left end in the inter-wheel differential shell
Left half axle gear, four left planetary gears engaged with the left half axle gear and one be located at the inter-wheel differential shell
The right axle shaft gear of interior right end, four right planetary gears engaged with the right axle shaft gear；Left the half of the left half axle assembly
The right end of axis is connected with the left half axle gear, the left end of the right axle shaft of the right axle shaft assembly and the right axle shaft gear
It is connected；It further include the driven bevel gear being fixedly connected on outside the inter-wheel differential shell.
Further, the main transmission sub-unit includes that the supporing shell being integrated with the bevel housing, middle part are logical
Cross the main shaft that bearing is connected with the supporing shell, the active circular cone for being located at main shaft upper end and being integrated with
Gear, the driven cylindrical gear being connected in the middle part of the main shaft；The driven cylindrical gear and the master on the main shaft
Dynamic roller gear engagement, the active conical gear are engaged with the driven bevel gear on the inter-wheel differential assembly.
Further, the active roller gear of the main transmission sub-unit and driven cylindrical gear are helical teeth.
Further, differential lock set is equipped on the outside of the bevel housing.
The beneficial effects of the utility model：
Since axle housing is directly connect with transfer case, power passes through inter-axle differential assembly by power 1 by input shaft input:1
It is output to rear axle, shortens the distance of bridge input terminal, realizes the promotion of vehicle configuration and the installation of transmission shaft；Due to main deceleration
Device assembly uses monolithic construction, shortens manufacturing procedure, alleviates the probability of blank weight and oil leak；Inter-wheel differential simultaneously
Assembly uses helical gears limited-slip differential, has saved whole bridge bridge core space, differential effect is more preferably.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of main shaft；
Fig. 3 is the structural schematic diagram of input shaft；
Fig. 4 is the structural schematic diagram of inter-axle differential sub-unit；
Fig. 5 is the structural schematic diagram of main transmission sub-unit and the cooperation of inter-wheel differential assembly；
Fig. 6 is inter-wheel differential assembly structure schematic diagram.
In figure：
1-axle housing；
2-main gearbox assemblies, 20-bevel housings, 21-main shafts, 22-active roller gears, 23-transmissions are convex
Edge is pitched, the 211-the second upper spline, 212-middle splines, 213-the second time spline；
3-left half axle assemblies, 30-left half axles；
4-right axle shaft assemblies, 40-right axle shafts；
5-inter-wheel differential assemblies, 50-inter-wheel differential shells, 51-left end caps, 52-right end caps, 53-left lateral stars
Gear, 54-right planetary gears, 55-left half axle gears, 56-right axle shaft gears, 58-driven bevel gears；
6-main transmission sub-units, 60-supporing shells, 61-main shafts, 62-active conical gears, 63-driven circles
Stud wheel；
7-inter-axle differential sub-units, 71-inter-axle differential shells, 72-cross axles, 73-planetary gears, 74-is main
Shaft bevel gears, 75-straight bevel gears；
8-input shafts, 81-the first time spline, 82-the first time spline；
10-differential lock sets.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings：
Referring in the middle part of a kind of Fig. 1 to through driving medium bridge structure of offroad vehicle shown in fig. 6, including axle housing 1 and axle housing one
The main gearbox assembly 2 of side connection, the left half axle assembly 3 being connect with axle housing left end, the right axle shaft assembly being connect with axle housing right end
4, it is located at the inter-wheel differential assembly 5 being connected in the middle part of axle housing and with main gearbox assembly；
The main gearbox assembly 2 includes bevel housing 20, the main shaft 21 being located in final drive casing body and the master
Active roller gear 22 and the driving flange fork 23 that axis is connected；Further include that the main transmission being located in final drive casing body divides always
At 6 and inter-axle differential sub-unit 7；It is characterized in that：
Point-blank with the axis of the main shaft 21, the upper end of the input shaft 8 is equipped with the axis of one input shaft 8
First upper spline 81, lower end are equipped with first time spline 82；First time spline 82 is matched with the inter-axle differential sub-unit 7
Connection is closed, first upper spline 81 and the transfer gear of offroad vehicle are connected, with input torque；
The upper end of the main shaft 21 is equipped with the second upper spline 211, middle part is equipped with middle spline 212, lower end is equipped with second
Lower spline 213；Second upper spline 211 is connected with inter-axle differential sub-unit 7, second time spline 213 and institute
It states driving flange fork 23 to be connected, by torque 1:1 passes to rear axle.
The inter-axle differential sub-unit 7 includes inter-axle differential shell 71, is located in the middle part of the inter-axle differential shell
The cross axle 72 of interior and matched connection, is located at the between centers at four planetary gears 73 being connected with the cross axle
In differential casing top and the main shaft bevel gear 74 of matched connection, the internal spline of the main shaft bevel gear and the main shaft 21
The cooperation of the second upper spline 211,21 middle part of the centre bore of the cross axle 72 and main shaft position on the upper side coordinates；Further include
The straight bevel gear 75 that internal spline coordinates with the middle spline 212 on the main shaft 21；The lower part of the straight bevel gear and the master
The centre bore of dynamic roller gear 22 is connected.
The inter-wheel differential assembly 5 includes inter-wheel differential shell 50, is connected to inter-wheel differential shell left end
Left end cap 51, the right end cap 52, one for being connected to inter-wheel differential shell right end are located at left end in the inter-wheel differential shell
55, four left planetary gears 53 engaged with the left half axle gear 55 of left half axle gear；One is located at differential between the wheel
56, four right planetary gears 54 engaged with the right axle shaft gear 56 of the right axle shaft gear of right end in device shell；Described left half
The right end of the left half axle 30 of axle assembly 3 is connected with the left half axle gear 55, a left side for the right axle shaft of the right axle shaft assembly 4
End is connected with the right axle shaft gear 56；Further include be fixedly connected on it is driven on the outside of the inter-wheel differential shell 50
Conical gear 58.
The main transmission sub-unit 6 includes that the supporing shell 60 being integrated with the bevel housing 20, middle part pass through
Main shaft 61 that bearing and the supporing shell are connected, the active circular cone for being located at main shaft upper end and being integrated with
Gear 62 is connected in the driven cylindrical gear 63 at 61 middle part of the main shaft；The driven cylindrical gear and the main shaft
Active roller gear 22 on 21 engages, the active conical gear 62 and the driven circular cone on the inter-wheel differential assembly 5
Gear 58 engages.
The active roller gear 62 and driven cylindrical gear 63 of the main transmission sub-unit 6 are helical teeth.
Differential lock set 10 is equipped on the outside of the bevel housing 20.
The utility model ensures the installation of transmission shaft under the premise of not carrying out big change to vehicle, while keeping vapour
The good passability of vehicle, improves the usage economy of automobile, meets user demand.
Claims (6)
1. a kind of through driving medium bridge structure of offroad vehicle, including axle housing（1）, it is total with the main reducing gear that connect of side in the middle part of axle housing
At（2）, the left half axle assembly that connect with axle housing left end（3）, the right axle shaft assembly that connect with axle housing right end（4）, be located in axle housing
The inter-wheel differential assembly being connected in portion and with main gearbox assembly（5）；
The main gearbox assembly（2）Including bevel housing（20）, the main shaft that is located in final drive casing body（21）And it should
Active roller gear (22) and the driving flange fork that main shaft is connected（23）；It further include the main biography being located in final drive casing body
Dynamic sub-unit（6）With inter-axle differential sub-unit（7）；It is characterized in that：
One input shaft（8）Axis and the main shaft（21）Axis point-blank, the input shaft（8）Upper end set
There is the first upper spline（81）, lower end be equipped with first time spline（82）；First time spline（82）With the inter-axle differential
Sub-unit（7）It is connected, first upper spline（81）It is connected with the transfer gear of offroad vehicle, with input torque；
The main shaft（21）Upper end be equipped with the second upper spline（211）, middle part be equipped with middle spline（212）, lower end be equipped with the
Two times splines（213）；Second upper spline（211）With inter-axle differential sub-unit（7）It is connected, second time spline
（213）It is pitched with the driving flange（23）It is connected, by torque 1:1 passes to rear axle.
2. the through driving medium bridge structure of offroad vehicle according to claim 1, it is characterized in that：The inter-axle differential point is total
At（7）Including inter-axle differential shell（71）, in the middle part of the inter-axle differential shell in and matched connection cross
Axis（72）And four planetary gears that the cross axle is connected（73）, be located at inter-axle differential shell top in and with
Mating connection main shaft bevel gear（74）, the internal spline of the main shaft bevel gear and the main shaft（21）The second upper spline
（211）Cooperation, the cross axle（72）Centre bore and the main shaft（21）Middle part position cooperation on the upper side；It further include internal spline
With the main shaft（21）On middle spline（212）The straight bevel gear of cooperation（75）；The lower part of the straight bevel gear and the master
The centre bore of dynamic roller gear (22) is connected.
3. the through driving medium bridge structure of offroad vehicle according to claim 1 or 2, it is characterized in that：Differential between the wheel
Device assembly（5）Including inter-wheel differential shell（50）, be connected to the left end cap of inter-wheel differential shell left end（51）, be connected to wheel
Between differential casing right end right end cap（52）, the left half axle gear for being located at left end in the inter-wheel differential shell
（55）, four with the left half axle gear（55）The left planetary gear of engagement（53）；One is located at the inter-wheel differential shell
The right axle shaft gear of interior right end（56）, four with the right axle shaft gear（56）The right planetary gear of engagement（54）；Described left half
Axis（30）Right end and the left half axle gear（55）It is connected, the right axle shaft（40）Left end and the right axle shaft gear
（56）It is connected；Further include being fixedly connected on the inter-wheel differential shell（50）Driven bevel gear (58 on outside）.
4. the through driving medium bridge structure of offroad vehicle according to claim 1 or 2, it is characterized in that：The main transmission point is total
At（6）Including with the bevel housing（20）The supporing shell being integrated（60）, middle part pass through bearing and the supporting shell
The main shaft that body is connected（61）, the active conical gear that is located at main shaft upper end and is integrated with（62）, cooperation
It is connected to the main shaft（61）The driven cylindrical gear at middle part（63）；The driven cylindrical gear and the main shaft（21）On
Active roller gear (22) engages, the active conical gear（62）With the inter-wheel differential assembly（5）On driven circular cone
Gear (58）Engagement.
5. the through driving medium bridge structure of offroad vehicle according to claim 3, it is characterized in that：The main transmission sub-unit
（6）Active roller gear（22）And driven cylindrical gear（63）It is helical teeth.
6. the through driving medium bridge structure of offroad vehicle according to claim 4, it is characterized in that：In the bevel housing
（20）Outside be equipped with differential lock set（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721778607.8U CN207725155U (en) | 2017-12-19 | 2017-12-19 | A kind of through driving medium bridge structure of offroad vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721778607.8U CN207725155U (en) | 2017-12-19 | 2017-12-19 | A kind of through driving medium bridge structure of offroad vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207725155U true CN207725155U (en) | 2018-08-14 |
Family
ID=63097599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721778607.8U Active CN207725155U (en) | 2017-12-19 | 2017-12-19 | A kind of through driving medium bridge structure of offroad vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207725155U (en) |
-
2017
- 2017-12-19 CN CN201721778607.8U patent/CN207725155U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190522 Address after: 401321 Fenghua Road, Yudong, Banan District, Chongqing, 901 Patentee after: Chongqing Dajiang Cheqiao Co., Ltd. Address before: 401321 Dajiang Industrial Park, Yudong Town, Banan District, Chongqing Patentee before: Chongqing Dajiang Industrial Co., Ltd. |
|
| TR01 | Transfer of patent right |