CN206159406U - Main speed reducer assembly - Google Patents
Main speed reducer assembly Download PDFInfo
- Publication number
- CN206159406U CN206159406U CN201621142250.XU CN201621142250U CN206159406U CN 206159406 U CN206159406 U CN 206159406U CN 201621142250 U CN201621142250 U CN 201621142250U CN 206159406 U CN206159406 U CN 206159406U
- Authority
- CN
- China
- Prior art keywords
- bearing
- gear
- differential
- bevel gear
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a main speed reducer assembly, it includes differential mechanism assembly, main reducer shell assembly, initiative circular cone helical gear, driven circular cone helical gear, the differential mechanism assembly passes through bearing III to be connected with main reducer shell assembly, and driven spiral bevel gear passes through bolt II and locknut fixes on the differential mechanism assembly, initiative spiral bevel gear passes through bearing I and bearing II installs in main reducer shell assembly, its middle (center) bearing I and the installation of bearing frame tight fit, and the bearing frame passes through bolt I to be fixed on main reducer shell assembly, the bearing frame includes circular bedplate, and the periphery of circular bedplate is equipped with a plurality of mounting holes, and circular bedplate center is equipped with oil seal installation hole, circular bedplate connecting axle bearing circular bead, bearing frame circular bead outer wall and the cooperation of main reducer shell assembly inner wall. The utility model discloses the structure is compacter, has not only reduced part quantity for the assembly is simpler with the maintenance, and it is easier to process, has reduced the part cost.
Description
Technical field
This utility model belongs to decelerator technical field, more particularly to a kind of full-sized car main gearbox assembly.
Background technology
Main reducing gear is the topmost moment of torsion transmission of vehicle class Mechanical Driven and power splitting mechanism, after being installed on vehicle
In axle housing, power should be assigned on left and right vehicle wheel semiaxis and be rotated with driving moment, allow two sidecar wheels can be with not again
Same rotating speed rotation, is met two sidecar wheels and is made Unequal distance traveling as far as possible in the form of pure rolling, and reduction tire is rubbed with ground
Wipe.It is widely used in the every field of national economy and national defense industry.
But the now domestic main reducing gear for being applied to high capacity car field is present, and short life, easy permeability, volume be big, structure
Complexity, the complicated shortcoming of manufacturing process.
Original main gearbox assembly needs to adjust bearing clearance by the internal space ring and external space ring size between two taper roll bearings,
Also need to fix bearing by oil seal seat, prevent bearing from moving axially, oil sealing is mounted on oil seal seat, and be to fill from inside to outside
Match somebody with somebody, need to remove oil seal seat during replacing, change time-consuming.
The bevel planet gear and cross axle of the differential assembly in original main gearbox assembly is connected by bushing, planet
Sphere Thurst washer is adopted between bevel gear and housing, causes housing and bevel planet gear manufacture difficult, transmission efficiency loss compared with
Greatly.
Utility model content
The purpose of this utility model is to provide a kind of transmission efficiency, small volume light weight, easily manufactured, assembling simply
Main gearbox assembly, not only reduce number of parts so that I＆ M is simpler, processing is more prone to, and reduces
Cost of parts.Main gearbox assembly of the present utility model can bear bigger load, and the maximum load of former car is carried by 45 tons
Height is to 55 tons, and structure is compacter, and volume is less, and structural strength more preferably, greatly improves life of product.
To achieve these goals, this utility model employs following technical proposals：A kind of main gearbox assembly, including difference
Fast device assembly, main reducing gear housing assy, active circular cone helical gear, driven circular cone helical gear；Differential assembly by bearing I II with
Main reducing gear housing assy connects, and driven spiral bevel gear is fixed on differential assembly by bolt II and stop nut；Actively
Spiral bevel gear passes through bearing I and bearing I I is arranged in main reducing gear housing assy, and wherein bearing I is pacified with bearing block tight fit
Dress, bearing block are fixed in main reducing gear housing assy by bolt I；The bearing block includes circular seat board, outside circular seat board
Enclose and be provided with some installing holes, circular seat board center is provided with seal mounting hole, circular seat board connecting shaft bearing shoulder, bearing block shoulder
Outer wall is coordinated with main reducing gear housing assy inwall.
Further, the active circular cone helical gear includes active circular cone helical gear shaft and circular cone helical teeth, cone inclined tooth position
In the middle part of active circular cone helical gear shaft, active circular cone helical gear shaft top is provided with the first active spiral bevel gear shoulder, actively
The second active of bottom spiral bevel gear shoulder of circular cone helical gear shaft.The bearing I is located at bearing block shoulder and the first active spiral shell
Between rotation bevel gear shoulder, it is 1 taper roll bearing.Bearing I I is arranged in main reducing gear housing assy and leads with second
Dynamic spiral bevel gear shoulder coordinates.Active circular cone helical gear is supported by bearing I and bearing I I.
Further, the active spiral bevel gear number of teeth is Za=11, and the driven spiral bevel gear number of teeth is Zb=41.
Further, the differential assembly include differential mechanism left housing, differential right casing, cross axle, bevel planet gear,
Semi-axle bevel gear, the differential mechanism left housing, differential right casing are with seam positioning blending bolt fastening composition differential casing, differential
Bearing I II is set at the two ends axle journal of device left housing and differential right casing, by being arranged on bearing I II at the axle journal of two ends by differential
Device assembly is fixed in main reducing gear housing assy.Setting cross shaft hole and half axis hole in differential mechanism left housing and differential right casing, ten
Cross shaft hole of the word axle by axle journal with differential right casing and differential mechanism left housing is fixed, and fixing axle is distinguished on four axles of cross axle
IV is held, endoporus and bearing I V of bevel planet gear coordinate；Semi-axle bevel gear is freely placed at differential casing and bevel planet gear
Between, differential casing and bevel planet gear and semi-axle bevel gear are same rotation axiss, the semiaxis that driving moment is rotated
It is connected by involute spline with semi-axle bevel gear；Bevel planet gear is engaged with semi-axle bevel gear.
Power dividing and break-in are effectively make use of in transmission, and rationally adopts Gear Planet Transmission box of tricks, driven
Running car is during this, it is ensured that steady operating of the vehicle on different travel routes and different road surfaces, reduces friction and improves behaviour
Make the service life of comfortableness and each part.
The utility model has the advantages that：Transmission efficiency, small volume, light weight, simple structure, easily manufactured, assembling letter
It is single, non-maintaining.Suitable for the transmission of high or low power in any case, widely using with power and accessory drive in, work
System is not limited, and can be used as deceleration, the multiplying gear of large-scale mine equipment.
Description of the drawings
Fig. 1 is main gearbox assembly schematic diagram of the present utility model.
Fig. 2 is the sectional view of bearing block.
Fig. 3 is the upward view of bearing block.
Fig. 4 is active circular cone helical gear schematic diagram.
Fig. 5 is differential assembly schematic diagram.
In figure：1. differential assembly, 2. adjusting nut, 3. main reducing gear housing assy, 4. bolt I, 5. bearing block, 6. bearing
I, 7. active circular cone helical gear, 8. driven circular cone helical gear, 9. bolt II, 10. stop nut, 11. bearing Is I, 12. bearings
III；51. installing holes, 52. seal mounting holes, 53. bearing block shoulders, 71. active circular cone helical gear shafts, 72. circular cone helical teeth, 73.
First active spiral bevel gear shoulder, 74. second active spiral bevel gear shoulders, 101. differential mechanism left housings, 102. differential mechanisms are right
Shell, 103. cross axles, 104. semi-axle bevel gears, 105. bevel planet gears, 106. bearing Is V.
Specific embodiment
This utility model is further illustrated below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of main gearbox assembly, including differential assembly (1), main reducing gear housing assy (3), active circular cone
Helical gear (7), driven circular cone helical gear (8)；Differential assembly (1) is connected with main reducing gear housing assy (3) by bearing I II (12)
Connect, driven spiral bevel gear (8) is fixed on differential assembly (1) by bolt II (9) and stop nut (10)；Active spiral
Bevel gear (7) is interior installed in main reducing gear housing assy (3) by bearing I (6) and bearing I I (11), wherein bearing I (6) and bearing
Seat (5) tight fit is installed, and bearing block (5) is fixed in main reducing gear housing assy (3) by bolt I (4).Active circular cone helical gear
(7) and driven circular cone helical gear (8) backlash by the movement of adjusting nut (2) determining.Active spiral bevel gear (7)
As power input shaft, driven spiral bevel gear (8) is transferred power to, so as to drive differential assembly to rotate, power is changed
Change direction and be diverted to both sides to drive vehicle both sides tyre rotation, if its straight line traveling, that both sides wheel speed is identical, differential
Device assembly (1) internal gear is not relatively rotated, and direct drive both sides semiaxis is rotated with differential carrier same rotational speed, if vehicle
Curve driving, that both sides vehicle wheel rotational speed are different, then carry out differential regulation by differential assembly (1), it is ensured that both sides wheel turns
Speed difference.
With reference to Fig. 2, Fig. 3, the bearing block (5) includes circular seat board, and the periphery of circular seat board is provided with some installing holes
(51), circular seat board center is provided with seal mounting hole (52), circular seat board connecting shaft bearing shoulder (53), during installation, bearing block
Shoulder (53) outer wall is coordinated with main reducing gear housing assy (3) inwall.The seal mounting hole (52) is including first from inside to outside
Arc-shaped step face, the second arc-shaped step face, the 3rd step surface, the 4th step surface.Two step surfaces of inner side adopt arc, so
It is convenient that oil sealing is installed, easily pull out.
With reference to Fig. 4, the active circular cone helical gear (7) includes active circular cone helical gear shaft (71) and circular cone helical teeth (72),
Circular cone helical teeth (72) is provided with the first master positioned at the middle part of active circular cone helical gear shaft (71), active circular cone helical gear shaft (71) top
Dynamic spiral bevel gear shoulder (73), second active of bottom spiral bevel gear shoulder (74) of active circular cone helical gear shaft (71) are main
The upper end of dynamic circular cone helical gear shaft (71) is spline union end, stretches out oil sealing.
The bearing I (6), between bearing block shoulder (53) and the first active spiral bevel gear shoulder (73), is 1
Taper roll bearing.Bearing I I (11) in the main reducing gear housing assy (1) and with the second active spiral bevel gear platform
Shoulder (74) coordinates.Active circular cone helical gear (7) is supported by bearing I (6) and bearing I I (11).
Bearing block (5) is in main reducing gear housing assy (3), and 2 taper roll bearings of original structure are changed
For 1 taper roll bearing, and the bearing block and oil seal seat of original structure are integrated into into 1 part, i.e., new bearing block, knot
Structure is simpler.Taper roll bearing and oil sealing only need to be loaded bearing block (5) by it, by the first active spiral bevel gear
Shoulder (73) and bearing block shoulder (53) distance controlling taper roll bearing clearance, and only oil sealing need to will be damaged when changing oil sealing
Pull out and ecto-entad loads new oil sealing.
And original structure needs to adjust bearing clearance by the internal space ring and external space ring size between two taper roll bearings, also need
Bearing is fixed by oil seal seat to be passed through, and prevents bearing from moving axially, and oil sealing is mounted on oil seal seat, and is to assemble from inside to outside,
Need to remove oil seal seat during replacing, change time-consuming.
New construction not only reduces number of parts so that I＆ M is simpler, and processing is more prone to, and reduces zero
Whole assembly cost, as soon as only this place optimizes, is reduced by 5% by part cost.
The active spiral bevel gear number of teeth in this utility model is Za=11, and the driven spiral bevel gear number of teeth is Zb=41
Gear ratio is：
I=Zb/Za
=41/11
=3.73
The active spiral bevel gear number of teeth of original product is Za=3, and the driven spiral bevel gear number of teeth is Zb=41
Gear ratio is：
I=Zb/Za
=41/13
=3.15
Calculate from more than, this utility model speed reducing ratio is larger, therefore can bear bigger load, by former car most
Big load brings up to 55 tons by 45 tons.And this project structure is compacter, volume is less, and structural strength more preferably, is greatly improved
Life of product.
With reference to Fig. 5, the differential assembly (1) includes differential mechanism left housing (101), differential right casing (102), cross axle
(103), bevel planet gear (105), semi-axle bevel gear (104), the differential mechanism left housing (101), differential right casing (102) are with only
At the two ends axle journal of mouth positioning blending bolt fastening composition differential casing, differential mechanism left housing (101) and differential right casing (102)
Bearing I II (12) is set, differential assembly (1) is fixed on by main deceleration by bearing I II (12) at the axle journal of two ends
In device housing assy (3).Cross shaft hole and half axis hole, cross axle are set in differential mechanism left housing (101) and differential right casing (102)
(103) cross shaft hole by axle journal with differential right casing (102) and differential mechanism left housing (101) is fixed, and the four of cross axle (103)
Fixing bearing IV (106) is distinguished on individual axle, endoporus and bearing I V (106) of bevel planet gear (105) coordinate；Semi-axle bevel gear
(104) be freely placed between differential casing and bevel planet gear (105), differential casing and bevel planet gear (105) with
And semi-axle bevel gear (104) is same rotation axiss, the semiaxis that driving moment is rotated is with semi-axle bevel gear (104) by gradually opening
Line spline connection；Bevel planet gear (105) is engaged with semi-axle bevel gear (104).
More specifically, bearing I V (106) is taper roll bearing 5356, and by bevel planet gear (105) endoporus
Use as bearing outer ring.From taper roll bearing 5356, and replace bearing outer ring to improve row with bevel planet gear (105)
Star bevel gear (105) wall thickness, it is ensured that planetary gear intensity.
Further, the differential mechanism left housing (101) and differential right casing (102) with the contact surface of bearing I V (106) are
Plane, relative to using sphere Thurst washer, which adopts plane just to contact, and transmission efficiency loss is less；And differential mechanism is left
Shell (101) and differential right casing (102) are easily processed, and the outer surface of bevel planet gear (105) is single plane or right
The polyhedron of individual plane composition, the bevel planet gear (105) is without the need for processing and differential mechanism shell and sphere Thurst washer shape
Consistent curved surface, reduces bevel planet gear (105) difficulty of processing.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing, but, this utility model is not limited
Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
Claims (8)
1. a kind of main gearbox assembly, including differential assembly (1), main reducing gear housing assy (3), active circular cone helical gear (7),
Driven circular cone helical gear (8)；Differential assembly (1) is connected with main reducing gear housing assy (3) by bearing I II (12), driven spiral shell
Rotation bevel gear (8) is fixed on differential assembly (1) by bolt II (9) and stop nut (10)；Active spiral bevel gear (7)
By bearing I (6) and bearing I I (11) in main reducing gear housing assy (3), it is characterised in that：Wherein bearing I (6) and axle
Bearing (5) tight fit is installed, and bearing block (5) is fixed in main reducing gear housing assy (3) by bolt I (4)；The bearing block
(5) including circular seat board, the periphery of circular seat board is provided with some installing holes (51), and circular seat board center is provided with seal mounting hole
(52), circular seat board connecting shaft bearing shoulder (53), bearing block shoulder (53) outer wall are matched somebody with somebody with main reducing gear housing assy (3) inwall
Close.
2. main gearbox assembly according to claim 1, it is characterised in that：The seal mounting hole (52) is included from introversion
Outer the first arc-shaped step face, the second arc-shaped step face, the 3rd step surface, the 4th step surface.
3. main gearbox assembly according to claim 1, it is characterised in that：The active circular cone helical gear (7) is including master
Dynamic circular cone helical gear shaft (71) and circular cone helical teeth (72), circular cone helical teeth (72) positioned at the middle part of active circular cone helical gear shaft (71),
Active circular cone helical gear shaft (71) top is provided with the first active spiral bevel gear shoulder (73), active circular cone helical gear shaft (71)
The second active of bottom spiral bevel gear shoulder (74).
4. main gearbox assembly according to claim 3, it is characterised in that：The bearing I (6) is positioned at bearing block shoulder
(53), between and the first active spiral bevel gear shoulder (73), it is 1 taper roll bearing；Bearing I I (11) is installed in master
Coordinate in reducing gearbox assembly (1) and with the second active spiral bevel gear shoulder (74)；By bearing I (6) and bearing I I (11)
Support active circular cone helical gear (7).
5. main gearbox assembly according to claim 3, it is characterised in that：The active spiral bevel gear number of teeth is Za=11,
The driven spiral bevel gear number of teeth is Zb=41.
6. main gearbox assembly according to claim 1, it is characterised in that：The differential assembly (1) is including differential mechanism
Left housing (101), differential right casing (102), cross axle (103), bevel planet gear (105), semi-axle bevel gear (104), the difference
Fast device left housing (101), differential right casing (102) are with seam positioning blending bolt fastening composition differential casing, differential mechanism left housing
(101) bearing I II (12) and at the two ends axle journal of differential right casing (102) is set, by the bearing at the axle journal of two ends
III (12) is fixed on differential assembly (1) in main reducing gear housing assy (3)；Differential mechanism left housing (101) and differential right casing
(102) cross shaft hole and half axis hole are set on, and cross axle (103) is by axle journal and differential right casing (102) and differential mechanism left housing
(101) cross shaft hole is fixed, and fixing bearing IV (106), bevel planet gear (105) are distinguished on four axles of cross axle (103)
Endoporus and bearing I V (106) coordinate；Semi-axle bevel gear (104) is freely placed at differential casing and bevel planet gear (105)
Between, differential casing is same rotation axiss, driving moment with bevel planet gear (105) and semi-axle bevel gear (104)
The semiaxis of rotation is connected by involute spline with semi-axle bevel gear (104)；Bevel planet gear (105) and semi-axle bevel gear
(104) engage.
7. main gearbox assembly according to claim 6, it is characterised in that：Bearing I V (106) is taper roller axle
Hold.
8. main gearbox assembly according to claim 6, it is characterised in that：The differential mechanism left housing (101) and differential mechanism
Right shell (102) is plane with the contact surface of bearing I V (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142250.XU CN206159406U (en) | 2016-10-20 | 2016-10-20 | Main speed reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142250.XU CN206159406U (en) | 2016-10-20 | 2016-10-20 | Main speed reducer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159406U true CN206159406U (en) | 2017-05-10 |
Family
ID=58654979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621142250.XU Active CN206159406U (en) | 2016-10-20 | 2016-10-20 | Main speed reducer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159406U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916365A (en) * | 2018-05-30 | 2018-11-30 | 汽解放汽车有限公司 | A kind of vehicle bridge retarder lightweight structure |
| CN108916352A (en) * | 2018-05-31 | 2018-11-30 | 汽解放汽车有限公司 | A kind of driven wheel of differential and differential mechanism left housing integrate structure |
| CN108980213A (en) * | 2017-06-01 | 2018-12-11 | 陕西汉德车桥有限公司 | A kind of bearing block |
| CN109372977A (en) * | 2018-12-05 | 2019-02-22 | 苏州绿控传动科技股份有限公司 | Electricity drives bridge list speed variable device |
| CN109372958A (en) * | 2018-12-21 | 2019-02-22 | 苏州绿控传动科技股份有限公司 | A kind of logistic car electricity drive bridge speed changer |
| CN109695686A (en) * | 2018-12-07 | 2019-04-30 | 一汽解放汽车有限公司 | A kind of drive axle double speed decelerator structure of bi-bevel gear |
| CN112628385A (en) * | 2021-01-04 | 2021-04-09 | 一汽解放汽车有限公司 | Vehicle drive axle assembly |
-
2016
- 2016-10-20 CN CN201621142250.XU patent/CN206159406U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980213A (en) * | 2017-06-01 | 2018-12-11 | 陕西汉德车桥有限公司 | A kind of bearing block |
| CN108916365A (en) * | 2018-05-30 | 2018-11-30 | 汽解放汽车有限公司 | A kind of vehicle bridge retarder lightweight structure |
| CN108916352A (en) * | 2018-05-31 | 2018-11-30 | 汽解放汽车有限公司 | A kind of driven wheel of differential and differential mechanism left housing integrate structure |
| CN109372977A (en) * | 2018-12-05 | 2019-02-22 | 苏州绿控传动科技股份有限公司 | Electricity drives bridge list speed variable device |
| CN109695686A (en) * | 2018-12-07 | 2019-04-30 | 一汽解放汽车有限公司 | A kind of drive axle double speed decelerator structure of bi-bevel gear |
| CN109695686B (en) * | 2018-12-07 | 2024-02-23 | 一汽解放汽车有限公司 | Driving axle double-speed reducer structure with double bevel gears |
| CN109372958A (en) * | 2018-12-21 | 2019-02-22 | 苏州绿控传动科技股份有限公司 | A kind of logistic car electricity drive bridge speed changer |
| CN112628385A (en) * | 2021-01-04 | 2021-04-09 | 一汽解放汽车有限公司 | Vehicle drive axle assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206159406U (en) | Main speed reducer assembly | |
| CN108757884A (en) | A kind of lightweight commercial car main reducer of middle axle assembly | |
| CN111152837B (en) | Double-wheel steering driving wheel | |
| CN102774240B (en) | Rear drive axle assembly | |
| CN104251289A (en) | Lubrication arrangement for a drive axle of a haul vehicle | |
| CN106740020A (en) | Electric motor car deceleration, differential integrated driving rear axle assy | |
| CN205101472U (en) | Tertiary reduction gear of electric motor car | |
| CN202703132U (en) | Rear drive axle assembly | |
| CN102774239B (en) | Front steering drive axle assembly | |
| CN104908581B (en) | A kind of wheel motor drive system and a kind of wheel motor drive axle | |
| CN207278791U (en) | One kind wheel side planetary reducer | |
| CN205804455U (en) | Pivoting support formula land leveller rear driving axle | |
| CN105090450B (en) | Hub reduction device | |
| CN202790347U (en) | Hub reduction gear and vehicle | |
| CN202349146U (en) | Differential | |
| CN207634644U (en) | A kind of main reducing gear band differential assembly for independent suspension | |
| CN111287236A (en) | Drive axle transmission system and land leveler | |
| CN104595424A (en) | Planetary wheel side reducer assembly | |
| CN205401636U (en) | Differential cross shaft | |
| CN211076114U (en) | Six-wheel unmanned mobile platform chassis structure | |
| CN108019473A (en) | A kind of gear reducer and the vertical circulating garage for being provided with this gear reducer | |
| CN202669391U (en) | Front steering drive axle assembly | |
| CN209370400U (en) | A kind of electric drive axle differential assembly | |
| CN204140814U (en) | Internal sealed automobile differential | |
| CN206111992U (en) | Differential assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |