CN109538715A - Free-standing main gearbox assembly after a kind of automobile - Google Patents
Free-standing main gearbox assembly after a kind of automobile Download PDFInfo
- Publication number
- CN109538715A CN109538715A CN201710864455.1A CN201710864455A CN109538715A CN 109538715 A CN109538715 A CN 109538715A CN 201710864455 A CN201710864455 A CN 201710864455A CN 109538715 A CN109538715 A CN 109538715A
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- Prior art keywords
- differential
- main
- tooth
- planetary gear
- free
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/36—Differential gearings characterised by intentionally generating speed difference between outputs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/36—Differential gearings characterised by intentionally generating speed difference between outputs
- F16H2048/368—Differential gearings characterised by intentionally generating speed difference between outputs using additional orbital gears in combination with clutches or brakes
Abstract
The present invention discloses free-standing main gearbox assembly after automobile, including connecting flange, bevel housing, main tooth, by tooth, differential assembly and differential semiaxis, connecting flange is fixed with main tooth, it is fixed by tooth and main tooth engagement, differential assembly includes differential casing, axle shaft gear and four planetary gears, planetary gear is vertical with two axle shaft gears, each planetary gear engages connection with two axle shaft gear one sides respectively, planetary gear is rotatably disposed in differential carrier body, another side of axle shaft gear is detachably fixed connection with corresponding differential semiaxis respectively, differential semiaxis is detachably fixed with corresponding tire respectively, it is detachably fixed by tooth and differential carrier outer rim.Free-standing main gearbox assembly structure is simple after automobile of the invention, uttering long and high-pitched sounds in vehicle traveling process can be effectively reduced, and effectively improve planetary gear service life, torque transmitting is steady, avoids generating resonance, effectively improves vehicle NVH performance and riding comfort.
Description
Technical field
The present invention relates to a kind of main reducing gears, more particularly to main gearbox assembly free-standing after a kind of automobile.
Background technique
It is existing stand alone type main gearbox assembly be by driving device in differential assembly inside differential casing
Axle shaft gear is connect with two planetary gears respectively, and each planetary gear stress compares in differential semiaxis rotary course in this way
Greatly, rapidly translating rotation is the rotation at a slow speed of differential semiaxis by main tooth, reduces rotation speed, and torque increases in the process, and
Change torque direction, planetary gear transmitting torque is unstable during changing torque, so that two differentials being attached thereto
Semiaxis shakes and shakes, and generation utters long and high-pitched sounds and resonates, and reduces vehicle NVH performance and riding comfort.And in differential mechanism
The assembly technology pore size opened up on shell is bigger, reduces the strength and stiffness of differential casing, reduces differential carrier
The impact resistant capability of body reduces the integral strength of free-standing main gearbox assembly and and shortens service life.In addition traditional
The independent main differential bearing that subtracts is using adjustment gasket adjustment, and backlash adjustment is difficult and difficult to control after installation, for the first time
It assembles unqualified, needs the gasket for reselecting different-thickness and dismount again, installation effectiveness is low, and backlash adjusts
It is improper to will lead to main tooth and deviation is generated by the position of engagement of tooth, and generate utter long and high-pitched sounds while the car is driving.
Summary of the invention
The present invention is completed to solve in the prior art insufficient, and the object of the present invention is to provide a kind of structure letters
List can be effectively reduced uttering long and high-pitched sounds in vehicle traveling process, and effectively improve planetary gear service life, and torque transmitting is flat
Surely, it avoids generating resonance, effectively improves free-standing main gearbox assembly after the automobile of vehicle NVH performance and riding comfort.
Free-standing main gearbox assembly after a kind of automobile of the invention, including connecting flange, bevel housing, be set to
Main tooth in the final drive casing body by tooth, differential assembly and is respectively rotatably connected in described differential assembly or so
The differential semiaxis of both sides, the connecting flange are fixed with the main tooth, the main tooth be angular wheel, it is described by tooth with it is described
Main tooth engagement is fixed, and the main tooth is mutually perpendicular to described by the central axis of tooth, and the differential assembly includes differential carrier
Body, four rows positioned at the axle shaft gear in left and right ends portion in the differential carrier body and between two axle shaft gears
Star gear, the planetary gear is vertical with two axle shaft gears, each planetary gear respectively with two half axle gears
One side engagement connection is taken turns, each planetary gear is rotatably disposed in the differential carrier body, and the axle shaft gear is another
One side is detachably fixed connection with the corresponding differential semiaxis respectively, the differential semiaxis respectively with corresponding jack shaft
It is detachably fixed, it is described to be detachably fixed by tooth and the differential carrier outer rim.
Free-standing main gearbox assembly may also is that after a kind of automobile of the invention
Four planetary gear uniform rings are set in the differential carrier body, the interval between the adjacent planetary gear
Angle is 90 °.
It is located at setting at the adjacent planetary gear interval location on the differential casing and offers installing technological hole,
Four installing technological holes are equipped on the differential casing, the installing technological hole uniform ring is set to the differential casing
On.
Differential bearing is equipped in the final drive casing body, the differential assembly is rotatably connected in the differential bearing
Interior, differential bearing inner end is fixed with the left and right ends portion of the differential casing respectively, the outer end of the differential bearing
Portion is provided with adjusting nut, and the adjusting nut is detachably fixed with the bevel housing position adjustable.
Bearing cap is provided on the differential bearing, the bearing cap is fixedly connected with the bevel housing, described
Adjusting nut is removably fixed between the bevel housing and the bearing cap.
Bevel housing left and right ends portion is detachably fixed with jack shaft by pivot flange, the support
The medial surface of flange is sealed with the differential assembly left and right ends and is fixed, the lateral surface of the pivot flange and the driving
Semiaxis is fixed.
Oil sealing and dust cover, the oil sealing and institute are provided between the pivot flange and the differential casing outer end
It states dust cover to be sheathed on the differential semiaxis, the oil sealing medial surface offsets with the bevel housing, the oil sealing
The sealing of lateral surface and the dust cover medial surface offset, the dust cover lateral surface and the pivot flange are sealed and are offseted, institute
The left and right ends portion inner wall of the outer wall and the differential casing of stating oil sealing is detachably fixed.
The differential casing includes the differential mechanism left shell half and differential mechanism right half-shell fastened, and the differential mechanism left shell half is right
End and differential mechanism right half-shell left part outer edge are fixed with described by tooth.
The main tooth includes main tooth teeth portion and main ratch portion, and the main ratch subordinate end and the main tooth teeth portion center are integrally
It forms or is fixedly connected, the main tooth teeth portion is connect with described by tooth engagement, the main ratch portion top and the connecting flange
It is detachably fixed, the main ratch position top and the bevel housing seal rotatable fixation.
Main tooth upper bearing (metal), spacer cylinder and main tooth lower bearing, the master are from top to bottom successively arranged in the main ratch portion
Tooth upper bearing (metal), the spacer cylinder and the main tooth lower bearing are both secured in the final drive casing body, and the main ratch portion can
Rotation is connected to the main tooth upper bearing (metal), spacer cylinder and main tooth lower bearing center.
Free-standing main gearbox assembly after a kind of automobile of the invention, including connecting flange, bevel housing, be set to
Main tooth in the final drive casing body by tooth, differential assembly and is respectively rotatably connected in described differential assembly or so
The differential semiaxis of both sides, the connecting flange are fixed with the main tooth, the main tooth be angular wheel, it is described by tooth with it is described
Main tooth engagement is fixed, and the main tooth is mutually perpendicular to described by the central axis of tooth, and the differential assembly includes differential carrier
Body, four rows positioned at the axle shaft gear in left and right ends portion in the differential carrier body and between two axle shaft gears
Star gear, the planetary gear is vertical with two axle shaft gears, each planetary gear respectively with two half axle gears
One side engagement connection is taken turns, each planetary gear is rotatably disposed in the differential carrier body, and the axle shaft gear is another
One side is detachably fixed connection with the corresponding differential semiaxis respectively, the differential semiaxis respectively with corresponding jack shaft
It is detachably fixed, it is described to be detachably fixed by tooth and the differential carrier outer rim.In this way, driving device is drivingly connected flange
Rotation, the connecting flange rotation drive the main tooth spiral fixed thereto to turn, and the main tooth spiral turns to drive engagement normal thereto
It is described turned by tooth spiral, since main tooth is angular wheel, and the main tooth is mutually perpendicular to by tooth central axis, therefore torque
Direction changes, while speed being reduced, and will translating rotation be rapidly to rotate at a slow speed, and drive whole differential by tooth low speed rotation
The rotation of device shell, and then two axle shaft gears being set in the differential carrier body is driven to rotate at a slow speed, due to being positive at this time
Often traveling is kept straight on, therefore does not have relative rotary motion between four planetary gears and the axle shaft gear, described in four
Planetary gear follows the differential casing to rotate at a slow speed together, the differential semiaxis being detachably fixed with the axle shaft gear
Also it rotates at a slow speed, two differential semiaxis rotation speeds are identical, and then two tires in left and right is driven to travel at the same speed.When automobile needs to turn
When curved, then controller controls four planetary gears and starts to rotate relative to the differential casing, and then drives phase therewith
The axle shaft gear of left and right two of engagement rotates at different rates, and then drives the differential semiaxis of left and right ends with different
Speed rotation, so that the jack shaft revolving speed of left and right ends is different, so that the tire running connecting with jack shaft
Speed is different, for example when automobile turns to the left, controls the differential semiaxis rotation speed in left side lower than right side differential semiaxis
Rotation speed realizes that automobile left side tire steering angle is small, and car right side tire running revolving speed is high, and realization is turned to the left.Than
When steering to the right such as automobile, the differential semiaxis rotation speed for controlling left side is higher than the rotation speed of right side differential semiaxis, real
Existing automobile left side tire turning velocity is big, and car right side tire running revolving speed is small, and realization bends to right.No matter keeping straight in this way
Or during turning, the planetary gear stress is averaged distribution to four planetary gears, respectively when transmitting torque
The planetary gear stress is smaller, under equal conditions can be using the planetary gear that intensity is low, size is small, and prolongs
The planetary gear service life, the axle shaft gear and the planetary gear are grown during power and torque transmit more
Add uniform and steady, differential semiaxis is avoided to occur shaking in rotary course and rotating deviation and then generate resonance, simultaneously because
Differential casing is steady compared with power transmitting between differential semiaxis, therefore can eliminate a part and utter long and high-pitched sounds, and effectively increases vehicle
NVH performance and improve riding comfort.Free-standing main gearbox assembly after a kind of automobile of the invention, compared with the existing technology
The advantages of be: structure is simple, uttering long and high-pitched sounds in vehicle traveling process can be effectively reduced, and effectively improves planetary gear use
In the service life, torque transmitting is steady, avoids generating resonance, effectively improves vehicle NVH performance and riding comfort.
Detailed description of the invention
Free-standing main gearbox assembly schematic diagram of internal structure after a kind of automobile of Fig. 1 present invention.
Free-standing main gearbox assembly differential casing schematic diagram after a kind of automobile of Fig. 2 present invention.
Free-standing main gearbox assembly differential assembly schematic diagram of internal structure after a kind of automobile of Fig. 3 present invention.
Free-standing main gearbox assembly is in automobile accelerated order noise curve figure after a kind of automobile of Fig. 4 present invention.
Free-standing main gearbox assembly slides order noise curve figure in automobile belt shelves after a kind of automobile of Fig. 5 present invention.
Free-standing main gearbox assembly is in car deceleration order noise curve figure after a kind of automobile of Fig. 6 present invention.
Figure number explanation
1 ... bevel housing 2 ... connecting flange 3 ... is by tooth
4 ... differential semiaxis 5 ... axle shaft gear 6 ... planetary gears
7 ... installing technological hole 8 ... differential bearing 9 ... adjusting nuts
10 ... differential mechanism left shell half 11 ... differential mechanism right half-shell 12 ... bearing caps
13 ... oil sealing 14 ... dust cover 15 ... pivot flanges
16 ... main main ratch portion 18 ... the spacer cylinders of tooth teeth portion 17 ...
19 ... main main tooth lower bearing 25 ... the bolts of tooth upper bearing (metal) 20 ...
26 ... planetary gear shaft 27 ... differential assemblies
Specific embodiment
Fig. 1 to Fig. 6 with reference to the accompanying drawing makees main gearbox assembly free-standing after a kind of automobile of the invention further
It is described in detail.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, including even
Acting flange 2, bevel housing 1, the main tooth being set in the bevel housing 1, by tooth 3, differential assembly and difference
It being rotatably connected in the differential semiaxis 4 in differential assembly left and right sides portion, the connecting flange 2 is fixed with the main tooth,
The main tooth is angular wheel, described to be fixed by tooth 3 and the main tooth engagement, the main tooth and the central axis by tooth 3
Be mutually perpendicular to, the differential assembly include differential casing, in the differential carrier body left and right ends portion half axle gear
Wheel 5 and four planetary gears 6 between two axle shaft gears 5, the planetary gear 6 with two half axle gears
Wheel 5 is vertical, and each planetary gear 6 engages connection, each planetary gear 6 with two 5 one sides of axle shaft gear respectively
It is rotatably disposed in the differential carrier body, another side of the axle shaft gear 5 respectively can with the corresponding differential semiaxis 4
Disassembly is fixedly connected, and the differential semiaxis 4 is detachably fixed with corresponding jack shaft respectively, described by tooth 3 and the differential
Device shell outer edge is detachably fixed.Rotated in this way, driving device is drivingly connected flange 2, the connecting flange 2 rotation drive with
The main tooth spiral of fixation turn, the main tooth spiral turns that the described of engagement normal thereto is driven to be rotated by tooth 3, since main tooth is cone
Shape gear, and the main tooth is mutually perpendicular to by 3 central axis of tooth, therefore torque direction changes, while speed being reduced, it will
Rapidly translating rotation is to rotate at a slow speed, is driving whole differential casing to rotate by 3 low speed rotation of tooth, and then drive and be set to
Two axle shaft gears 5 in the differential carrier body rotate at a slow speed, due to being at this time that normally travel is kept straight on, described in four
There is no relative rotary motion between planetary gear 6 and the axle shaft gear 5, four planetary gears 6 follow the differential mechanism
Shell rotates at a slow speed together, also rotates at a slow speed with the differential semiaxis 4 that the axle shaft gear 5 is detachably fixed, two differentials
4 rotation speed of semiaxis is identical, and then two tires in left and right is driven to travel at the same speed.When automobile needs to turn, then controller
It controls four planetary gears 6 to start to rotate relative to the differential casing, and then drives the institute of left and right two being meshed therewith
It states axle shaft gear 5 to rotate at different rates, and then the differential semiaxis 4 of left and right ends is driven to rotate at different rates, in turn
So that the jack shaft travel speed of left and right ends is different, and then drive is different from the tire rotational speed that jack shaft connects, such as
When automobile turns to the left, 4 rotation speed of differential semiaxis for controlling left side is lower than the rotation speed of right side differential semiaxis 4, real
Existing automobile left side tire steering angle is small, and car right side tire running revolving speed is high, and realization is turned to the left.For example automobile is turned right
To when, control left side 4 rotation speed of differential semiaxis be higher than right side differential semiaxis 4 rotation speed, realize automobile left side
Tire turning velocity is big, and car right side tire running revolving speed is small, and realization bends to right.Though in this way straight trip or turning
In the process, 6 stress of planetary gear, which is averaged, when transmitting torque distributes to four planetary gears 6, each planet
6 stress of gear is smaller, under equal conditions can be using the planetary gear 6 that intensity is low, size is small, and extends institute
The service life of planetary gear 6, the axle shaft gear 5 and the planetary gear 6 are stated during power and torque transmit more
It is uniformly and steady, it avoids differential semiaxis 4 from occurring shaking and rotating deviation in rotary course and then generates resonance, simultaneously because poor
Fast device shell is steady compared with power transmitting between differential semiaxis 4, therefore can eliminate a part and utter long and high-pitched sounds, and effectively increases vehicle
NVH performance simultaneously improves riding comfort.Free-standing main gearbox assembly after a kind of automobile of the invention, compared with the existing technology
Advantage is: structure is simple, uttering long and high-pitched sounds in vehicle traveling process can be effectively reduced, and effectively improves the use of planetary gear 6
In the service life, torque transmitting is steady, avoids generating resonance, effectively improves vehicle NVH performance and riding comfort.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, in front
It specifically may is that four 6 uniform rings of planetary gear are set in the differential carrier body on the basis of technical solution, adjacent institute
Stating the interval angles between planetary gear 6 is 90 °.In this way, four planetary gears 6 are located in the differential carrier body,
Adjacent interval angles between the two, which are 90 °, can guarantee that the planetary gear 6 is symmetrically distributed on the differential casing,
Guarantee its Transmit evenly rotary force and torque on four azimuth planes, guarantees that be engaged with two axle shaft gears 5 are transported
Row is steady, and then is further ensured that the differential semiaxis 4 of left and right ends runs smoothly, i.e. the tire of left and right ends runs smoothly, into
The reduction of one step is uttered long and high-pitched sounds, and avoids resonating, and effectively improves vehicle NVH performance and riding comfort, and due to the planetary gear 6
Even to be arranged on the differential casing, 6 stress of planetary gear is consistent, therefore its whole service life is effectively prolonged
It is long.Further preferred technical solution are as follows: be provided with 4 engaging tooth of differential semiaxis, institute on two 5 opposite flanks of axle shaft gear
State and be equipped with planet engaging tooth on planetary gear 6,4 engaging tooth of differential semiaxis on two axle shaft gears 5 respectively with it is each
Planet engagement tooth engagement connection on the planetary gear 6.Left and right ends are driven therewith when the planetary gear 6 rotates in this way
Engagement 5 revolving speed of the axle shaft gear generate difference, and then realize automobile to steadily turn left or turn right.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, in front
It is set on the basis of technical solution it may also is that being located at adjacent 6 interval location of the planetary gear on the differential casing
It sets and offers installing technological hole 7, four installing technological holes 7 are equipped on the differential casing, the installing technological hole 7 is uniformly
It is located on the differential casing.In this way, stress reduces, while described due to using four planetary gears 6
7 size of the installing technological hole opened up on differential casing is uniform can reduce, and effectively improve the whole differential carrier
The intensity and non-deformability of body, while reducing and uttering long and high-pitched sounds.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, in front
It may also is that the planetary gear 6 is rotatably affixed at the differential mechanism by planetary gear shaft 26 on the basis of technical solution
On shell, the outer end of the planetary gear shaft 26 is rotatably disposed on the differential casing, the planetary gear shaft 26
6 central position of planetary gear is fixed in inner end.In this way, 6 center of planetary gear is fixed on the planetary gear shaft
26 inner ends, the rotation of planetary gear shaft 26 drives the planetary gear 6 to rotate, and the rotatable fixation of the planetary gear shaft 26
On the differential casing, guarantee that the planetary gear 6 does not fall out and engages with the axle shaft gear 5.Described in guarantee
Planetary gear 6 can be controlled it around institute while realizing in company with the differential casing and being revolved by tooth 3 by controller
26 rotation of planetary gear shaft is stated, to realize differential speed rotation and the differential transmitting of left and right sides differential semiaxis 4.Certainly it can also be it
The connection type of his structure, as long as the planetary gear 6 can be rotatably connected on the differential casing.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, in front
It may also is that each 1 inner end of bevel housing is arranged with differential bearing 8, the differential on the basis of technical solution
Device assembly 27 is rotatably connected in the differential bearing 8,8 inner end of differential bearing respectively with the differential casing
Left and right ends portion is fixed, and the outer end of the differential bearing 8 is provided with adjusting nut 9, the adjusting nut 9 and the main deceleration
1 position adjustable of device shell is detachably fixed.In this way, differential bearing 8 is set on differential assembly 27, such differential bearing 8
It is fixed in the bevel housing 1, the differential semiaxis 4 rotates in the differential bearing 8 with differential assembly 27, keeps away
Exempt to wear the differential semiaxis 4 and the differential casing, is convenient for changing the differential bearing 8, while the differential bearing 8 is used
In the inner end for supporting the differential semiaxis 4.And 8 outer end of differential bearing is provided with adjusting nut 9, adjusting nut 9
Effect be can be detachably fixed with the bevel housing 1 during assembly, while adjusting nut 9 rotate after can
To adjust the position that the differential bearing 8 is located in the bevel housing 1, and then adjusts the differential casing and be located at institute
The position in bevel housing 1 is stated, and then drives and is moved by 3 position of tooth, and then is adjusted by between tooth 3 and the main tooth
Backlash so that backlash adjusted guarantees that the main tooth is engaged in operational process and can be operated by tooth 3 with described
It is smooth, avoid the two position of engagement from generating deviation and generate utter long and high-pitched sounds in the process of running, it can to further decrease and utter long and high-pitched sounds.Upper
Further preferred technical solution is on the basis of surface technology scheme: bearing cap 12, the axis are provided on the differential bearing 8
It holds lid 12 and is detachably fixed with the bevel housing 1 and is connect, the adjusting nut 9 is removably fixed in the main reducing gear
Between shell 1 and the bearing cap 12.9 position of adjusting nut described so is adjustably arranged on the bevel housing 1,
Therefore it is inwardly and outwardly moved by screw thread rotation connection, and then the differential bearing 8 is driven to move inward or outward, pushed away
It moves the differential casing to move inward or outward, and then adjusts by the backlash between tooth 3 and main tooth, guarantee to reduce and make a whistling sound
It cries and resonates.Technical solution further preferred on the basis of technical solution in front are as follows: the bevel housing 1 or so two
End is detachably fixed with jack shaft by pivot flange 15, the medial surface of the pivot flange 15 with the differential mechanism
The sealing of 27 left and right ends of assembly is fixed, and lateral surface and the jack shaft of the pivot flange 15 are fixed.In this way, differential semiaxis
4 rotatable supports are arranged in final drive casing body, and the medial surface of the pivot flange 15 with the bevel housing
Left and right ends sealing fixation is to avoid water that dust is helped to enter inside bevel housing 1 and the transmitting of influence power and torque.?
Further preferred technical solution on the basis of previous technique scheme are as follows: the pivot flange 15 and the differential casing outer end
Oil sealing 13 and dust cover 14 are provided between portion, the oil sealing 13 is sheathed on the differential semiaxis 4 with the dust cover 14,
13 medial surface of oil sealing offsets with the bevel housing 1,14 inside of the lateral surface of the oil sealing 13 and the dust cover
Face sealing offsets, and 14 lateral surface of dust cover and the pivot flange 15 are sealed and offseted, the outer wall of the oil sealing 13 with it is described
The left and right ends portion inner wall of differential casing is detachably fixed.Using oil sealing 13 and dust cover 14 can by pivot flange 15 with
It seals and fixes between the differential casing outer end, and can enter to avoid dust.It is further ensured that the rotation fortune of differential semiaxis 4
Row.Technical solution still more preferably are as follows: the differential bearing 8 is fixedly connected with the bearing cap 12 by bolt 25.Spiral shell
Bolt 25 be fixed conveniently disassembly and installation and it is at low cost.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, in front
It may also is that the differential casing includes the differential mechanism left shell half 10 and differential mechanism right half-shell fastened on the basis of technical solution
11,10 right part of differential mechanism left shell half and 11 left part outer edge of the differential mechanism right half-shell are fixed with described by tooth 3.
The differential mechanism left shell half 10 described in this way and the differential mechanism right half-shell 11 form the differential casing after fastening.And it is equal by tooth 3
It is fixed with the differential mechanism right half-shell 11 and the differential mechanism left shell half 10, it can be driven when rotation at a slow speed by tooth 3 in this way
The differential mechanism left shell half 10 and the differential mechanism right half-shell 11 rotate simultaneously.Further preferred technical solution are as follows: the difference
Fast 10 right part of device left shell half and 11 left part of differential mechanism right half-shell are equipped with a circle connection ring, the differential mechanism left shell half
10 connection ring is docked with the connection ring of the differential mechanism right half-shell 11, is then docked with the connection ring set by 3 ring of tooth, is led to
It crosses at least two bolts 25 that uniform ring is set three is fixed together.Such fixed form is fixed than stronger, power and torsion
Square transmitting uniformly, and is driven the differential mechanism right half-shell 11 and the differential mechanism left shell half 10 while being rotated by tooth 3.
Free-standing main gearbox assembly after a kind of automobile of the invention please refers to Fig. 1 related each figure into Fig. 6, in front
It may also is that the main tooth includes main tooth teeth portion 16 and main ratch portion 17 on the basis of technical solution, under the main ratch portion 17
End is integrally formed or is fixedly connected with main 16 center of tooth teeth portion, and the main tooth teeth portion 16 engages connection, institute by tooth 3 with described
It states main 17 top of ratch portion to be detachably fixed with the connecting flange 2, described 17 tops in main ratch portion and the main reducing gear
Shell 1 seals rotatable fixation.In this way, the main ratch portion 17 is detachably fixed with the connecting flange 2, and the main tooth tooth
Portion 16 is engaged with by tooth 3, realizes connecting flange 2 and the main tooth spiral is driven to turn, main tooth is engaged with by tooth 3, and then will rapidly be revolved
It walks around to turn to and rotate at a slow speed, realize that torque transmitting and direction of rotation change.In front on the basis of technical solution further preferably
Technical solution are as follows: be from top to bottom successively arranged under main tooth upper bearing (metal) 19, spacer cylinder 18 and main tooth in the main ratch portion 17
Bearing 20, the main tooth upper bearing (metal) 19, the spacer cylinder 18 and the main tooth lower bearing 20 are both secured to the final drive casing
In body 1, the main ratch portion 17 is rotatably connected in 20 center of the main tooth upper bearing (metal) 19, spacer cylinder 18 and main tooth lower bearing.
The effect that main tooth upper bearing (metal) 19 and main tooth lower bearing 20 is arranged is both the support main ratch portion 17 and avoids the main ratch
It wears in portion 17.Spacer cylinder 18 between main tooth upper bearing (metal) 19 and lower bearing 20 can provide pretightning force appropriate for bearing.In front
On the basis of technical solution it may also is that main 17 top of ratch portion passes through the oil sealing 13 that is sheathed in the main ratch portion 17
Be sealingly fastened in 1 top of bevel housing, be provided at position between the oil sealing 13 and the connecting flange 2 anti-
Dust hood 14,13 outer wall of oil sealing and 1 top inner wall of bevel housing sealing are fixed, and the dust cover 14 is covered on institute
State 13 top of oil sealing.In this way, guaranteeing at the top of bevel housing 1 sealing and dust-proof, dust and water is avoided to enter main reducing gear
The operation of each operation component is influenced in shell 1.Main 17 top of ratch portion passes through the oil that is sheathed in the main ratch portion 17
It seals 13 and is sealingly fastened in 1 top of bevel housing, be arranged at position between the oil sealing 13 and the connecting flange 2
There is dust cover 14,13 outer wall of oil sealing and 1 top inner wall of bevel housing sealing are fixed, and the lid of dust cover 14 is set
In 13 top of oil sealing.
It is above-mentioned that only several specific embodiments in the present invention are illustrated, but can not be as protection model of the invention
Enclose, it is all according to the present invention in design spirit made by equivalent change or modification or equal proportion zoom in or out, should all
Think to fall into protection scope of the present invention.
Claims (10)
1. free-standing main gearbox assembly after a kind of automobile, it is characterised in that: including connecting flange, bevel housing, setting
In in the final drive casing body main tooth, by tooth, differential assembly and respectively be rotatably connected it is left in the differential assembly
The differential semiaxis of right both sides, the connecting flange are fixed with the main tooth, and the main tooth is angular wheel, described by tooth and institute
It states main tooth engagement to fix, the main tooth is mutually perpendicular to described by the central axis of tooth, and the differential assembly includes differential mechanism
Shell, four positioned at the axle shaft gear in left and right ends portion in the differential carrier body and between two axle shaft gears
Planetary gear, the planetary gear is vertical with two axle shaft gears, each planetary gear respectively with two semiaxis
The engagement connection of gear one side, each planetary gear are rotatably disposed in the differential carrier body, the axle shaft gear
Another side is detachably fixed connection with the corresponding differential semiaxis respectively, and the differential semiaxis drives half with corresponding respectively
Axis is detachably fixed, described to be detachably fixed by tooth and the differential carrier outer rim.
2. free-standing main gearbox assembly after a kind of automobile according to claim 1, it is characterised in that: four planets
Gear uniform ring is set in the differential carrier body, and the interval angles between the adjacent planetary gear are 90 °.
3. free-standing main gearbox assembly after a kind of automobile according to claim 1, it is characterised in that: the differential carrier
It is located at setting at the adjacent planetary gear interval location on body and offers installing technological hole, ring is set on the differential casing
There are four installing technological hole, the installing technological hole uniform ring is set on the differential casing.
4. special according to claim 1 to free-standing main gearbox assembly after a kind of automobile described in 3 any one claim
Sign is: differential bearing is equipped in the final drive casing body, the differential assembly is rotatably connected in the differential bearing
Interior, differential bearing inner end is fixed with the left and right ends portion of the differential casing respectively, the outer end of the differential bearing
Portion is provided with adjusting nut, and the adjusting nut is detachably fixed with the bevel housing position adjustable.
5. free-standing main gearbox assembly after a kind of automobile according to claim 4, it is characterised in that: the differential bearing
On be provided with bearing cap, the bearing cap is detachably fixed with the bevel housing and connect, and the adjusting nut is detachable
It is fixed between the bevel housing and the bearing cap.
6. free-standing main gearbox assembly after a kind of automobile according to claim 5, it is characterised in that: the main reducing gear
Shell left and right ends portion is detachably fixed with jack shaft by pivot flange, the medial surface of the pivot flange with it is described
The sealing of differential assembly left and right ends is fixed, and the lateral surface of the pivot flange is fixed with the jack shaft.
7. free-standing main gearbox assembly after a kind of automobile according to claim 6, it is characterised in that: the pivot flange
Oil sealing and dust cover are provided between the differential casing outer end, the oil sealing and the dust cover are sheathed on described
On differential semiaxis, the oil sealing medial surface offsets with the bevel housing, the lateral surface of the oil sealing and the dust cover
Medial surface sealing offsets, and the dust cover lateral surface offsets with pivot flange sealing, the outer wall of the oil sealing and the difference
The left and right ends portion inner wall of fast device shell is detachably fixed.
8. special according to claim 1 to free-standing main gearbox assembly after a kind of automobile described in 3 any one claim
Sign is: the differential casing includes the differential mechanism left shell half and differential mechanism right half-shell fastened, and the differential mechanism left shell half is right
End and differential mechanism right half-shell left part outer edge are fixed with described by tooth.
9. special according to claim 1 to free-standing main gearbox assembly after a kind of automobile described in 3 any one claim
Sign is: the main tooth includes main tooth teeth portion and main ratch portion, and the main ratch subordinate end and the main tooth teeth portion center are integrally
It forms or is fixedly connected, the main tooth teeth portion is connect with described by tooth engagement, the main ratch portion top and the connecting flange
It is detachably fixed, the main ratch position top and the bevel housing seal rotatable fixation.
10. free-standing main gearbox assembly after a kind of automobile according to claim 9, it is characterised in that: the main ratch
Main tooth upper bearing (metal), spacer cylinder and main tooth lower bearing, the main tooth upper bearing (metal), the spacer cylinder are from top to bottom successively arranged in portion
It is both secured in the final drive casing body with the main tooth lower bearing, the main ratch portion is rotatably connected on the main tooth
Bearing, spacer cylinder and main tooth lower bearing center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864455.1A CN109538715A (en) | 2017-09-22 | 2017-09-22 | Free-standing main gearbox assembly after a kind of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864455.1A CN109538715A (en) | 2017-09-22 | 2017-09-22 | Free-standing main gearbox assembly after a kind of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538715A true CN109538715A (en) | 2019-03-29 |
Family
ID=65830438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710864455.1A Pending CN109538715A (en) | 2017-09-22 | 2017-09-22 | Free-standing main gearbox assembly after a kind of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242294A1 (en) * | 2021-05-18 | 2022-11-24 | 上海三一重机股份有限公司 | Driving gear structure of loader, main speed reducer of loader, and loader |
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| JP2003166625A (en) * | 2001-11-29 | 2003-06-13 | Jatco Ltd | Transmission |
| JP2007162869A (en) * | 2005-12-15 | 2007-06-28 | Toyota Motor Corp | Preload adjusting mechanism for bearing, and differential gear housing body and driving device having it |
| CN202579895U (en) * | 2012-05-14 | 2012-12-05 | 重庆市望达机械制造有限公司 | Minicar rear axle final drive assembly |
| CN205780696U (en) * | 2016-05-23 | 2016-12-07 | 上海汇众汽车制造有限公司 | Satellite differential |
| CN207278801U (en) * | 2017-09-22 | 2018-04-27 | 上汽通用五菱汽车股份有限公司 | Free-standing main gearbox assembly after a kind of automobile |
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2017
- 2017-09-22 CN CN201710864455.1A patent/CN109538715A/en active Pending
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|---|---|---|---|---|
| JP2003166625A (en) * | 2001-11-29 | 2003-06-13 | Jatco Ltd | Transmission |
| JP2007162869A (en) * | 2005-12-15 | 2007-06-28 | Toyota Motor Corp | Preload adjusting mechanism for bearing, and differential gear housing body and driving device having it |
| CN202579895U (en) * | 2012-05-14 | 2012-12-05 | 重庆市望达机械制造有限公司 | Minicar rear axle final drive assembly |
| CN205780696U (en) * | 2016-05-23 | 2016-12-07 | 上海汇众汽车制造有限公司 | Satellite differential |
| CN207278801U (en) * | 2017-09-22 | 2018-04-27 | 上汽通用五菱汽车股份有限公司 | Free-standing main gearbox assembly after a kind of automobile |
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| 第230-231页: "《底盘设计 上册》", 机械工业出版社, pages: 230 - 231 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242294A1 (en) * | 2021-05-18 | 2022-11-24 | 上海三一重机股份有限公司 | Driving gear structure of loader, main speed reducer of loader, and loader |
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