CN208474432U - A kind of differential 4 wheel driven speed changer - Google Patents
A kind of differential 4 wheel driven speed changer Download PDFInfo
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- CN208474432U CN208474432U CN201820754815.2U CN201820754815U CN208474432U CN 208474432 U CN208474432 U CN 208474432U CN 201820754815 U CN201820754815 U CN 201820754815U CN 208474432 U CN208474432 U CN 208474432U
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- 238000009423 ventilation Methods 0.000 claims description 7
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Abstract
The utility model relates to a kind of speed changers, including box assembly, shift assembly, main variable speed assembly, differential shaft assembly and preceding driving assembly, the shift assembly, main variable speed assembly, differential shaft assembly and preceding driving assembly are fixed on the cabinet, the shift assembly includes main gear shift component and 4 wheel driven shift assembly, and the main gear shift component and 4 wheel driven shift assembly control main variable speed assembly respectively, the gear of differential shaft assembly is adjusted.The utility model performance is stablized, securely and reliably, compact-sized, the haulage vehicle that installing the utility model can be achieved realizes rear wheel drive in underloading good road surface when driving, and differential 4 wheel driven is realized when driving on the non-rigid road surface of underloading or fully loaded good road surface, differential locking 4 wheel driven is realized when being fully loaded with non-rigid road surface, be conducive to improve the driving capability that tractor is engaged in field transhipment and road transport, prevent tyre slip or sunken vehicle, meet the needs of various road conditions different driving mode.
Description
Technical field
The utility model belongs to transmission technology field, and in particular to a kind of differential 4 wheel driven speed changer.
Background technique
On articulated vehicle, especially in frame-steered tractor, since tractor is usually in field, loose non-hard
Traveling or operation on matter road surface and hard surfacing.Tractor is in field traveling or operation, since the soil texture in field is soft,
Bearing capacity is poor, easily has skidded phenomenon, even with open four-wheel drive, also inevitably has skidded sunken vehicle phenomenon.
And on loose non-rigid road surface when driving, similarly there is the above problem, therefore easily use four-wheel drive, especially between centers
Differential locking 4 wheel driven.But on hard surfacing when driving, if using by shaft space difference speed locking, due to the road of front and rear wheel traveling
Cheng Keneng is unequal, causes tire wear serious, easily using differential 4 wheel driven or independent forerunner or rear-guard.However, being transported in tractor
Defeated vehicle field, the operating condition variation of tractor is greatly.Rear wheel drive is needed when driving in underloading good road surface, and is being lightly loaded non-rigid road
Face or fully loaded good road surface need differential 4 wheel driven when driving, and differential locking 4 wheel driven is needed when being fully loaded with non-rigid road surface.
In conclusion it is urgent to provide a kind of performances to stablize, it is safe and reliable, compact-sized, and various working needs can be met,
The differential 4 wheel driven speed changer of power consumption when effectively reducing four-wheel drive.
Utility model content
The purpose of the utility model is to provide a kind of performances to stablize, safe and reliable, compact-sized, and can meet various working
It needs, the differential 4 wheel driven speed changer of power consumption when effectively reducing four-wheel drive.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of differential 4 wheel driven speed changer, including box assembly, shift group
Part, main variable speed assembly, differential shaft assembly and preceding driving assembly, the box assembly include at least cabinet, the shift assembly, master
Variable speed assembly, differential shaft assembly and preceding driving assembly are fixed on the cabinet, and the shift assembly includes main gear shift group
Part and 4 wheel driven shift assembly, the main variable speed assembly includes input shaft assembly, reverse gear shaft assembly and intermediate shaft assembly, described to reverse gear
The reverse gear that shaft assembly includes at least reverse gear shaft and is arranged on the reverse gear shaft, the input shaft assembly include at least input
Axis and the gear driving gear being fixed on the input shaft, the driving gear that reverses gear, two gear driving gear and three gears are actively
Gear, the intermediate shaft assembly include jackshaft, 4 wheel driven driving gear, one reverse gear combined cover and two or three gear combined covers, it is described in
Between axis by jackshaft needle bearing be equipped with reverse gear driven gear, one gear driven gear, second gear driven gear and three gear driven tooths
Wheel, the 4 wheel driven driving gear are connected on the jackshaft by spline slide；One the gear driving gear, second gear driving tooth
Wheel, three gear driving gears are engaged with the gear driven gear, second gear driven gear and three gear driven gears respectively, described to reverse gear
Driving gear is engaged with the reverse gear, the driven gear that reverses gear；The jackshaft by spline be equipped with one reverse gear splined hub and
Two or three gear splined hubs, described one reverse gear splined hub setting reversing gear driven gear and one gear driven gear between, it is described two or three gear
Splined hub setting second gear driven gear and three gear driven gears between, described one reverse gear combined cover and two or three gear combined covers difference
Be set in described one reverse gear splined hub and two or three gear splined hubs on, the main gear shift component include at least a back fork and
Two or three gear shift forks, a back fork can drive the combined cover that reverses gear to move along described one splined hub of reversing gear and realize that one reverses gear
Combined cover with reverse gear driven gear or a gear driven gear engages, two or the three gear shift fork can drive two or three gear combined covers along institute
It is mobile and realize that two or three gear combined covers reverse gear with two and driven gear or three keep off engaging for driven gears to state two or three gear splined hubs；It is described
Differential shaft assembly includes rear axle assemblies, preceding shaft assembly and differential assembly, and the rear axle assemblies include at least rear axle, rear axle driven tooth
Wheel and rear axle differential gear；The preceding shaft assembly includes at least front axle, front axle gear and front axle differential gear；The differential assembly
Including at least differential mechanism driven gear, planetary gear shaft, planet wheel carrier, planetary gear thrust axle sleeve, planetary gear, planet
Gear pedestal axle sleeve, planetary gear axle sleeve and thrust axle sleeve；The front axle is connected with rear axle by front axle needle bearing, the difference
Fast device driven gear is fixed on the planet wheel carrier, and the planet wheel carrier is installed by planet wheel carrier axle sleeve
It can rotate on the rear axle and along rear axle, the rear axle differential gear and rear axle driven gear are arranged on the rear axle, institute
The outside that rear axle driven gear is located at the rear axle differential gear is stated, the front axle gear, front axle differential gear are arranged described
On front axle, the front axle gear is located at the outside of the front axle differential gear, the planet wheel carrier and the rear axle differential
Thrust axle sleeve is respectively equipped between gear, front axle differential gear, the thrust axle sleeve is respectively sleeved on the front axle and rear axle,
The planet wheel carrier, rear axle differential gear, front axle differential gear are in contact with the thrust axle sleeve；The planetary gear shaft
Frame is equipped with multiple planetary gear shafts, and the planetary gear shaft is uniformly arranged and passes through along the circumferential direction of the differential mechanism driven gear
The limit of differential mechanism driven gear, the planetary gear are set in the planetary gear shaft by the planetary gear shaft, institute
It states and is equipped with planetary gear thrust axle sleeve between planet wheel carrier and the planetary gear, the planetary gear thrust axle sleeve is arranged
In the planetary gear shaft, the planet wheel carrier, planetary gear are in contact with the planetary gear thrust axle sleeve；It is described
It is engaged respectively with front axle differential gear and rear axle differential gear and forms differential transmission systems in planetary gear two sides；The 4 wheel driven
Shift assembly includes at least 4 wheel driven shift fork, and institute's 4 wheel driven states shift fork and is connected with the 4 wheel driven driving gear, and the 4 wheel driven shift fork can band
4 wheel driven driving gear sliding axially along the jackshaft is stated described in dynamic, and can realize the 4 wheel driven driving gear and front axle gear
Engagement, or is engaged, or engage simultaneously with rear axle driven gear and differential mechanism driven gear with differential mechanism driven gear, or with it is rear
The engagement of axis driven gear；The precursor assemblies include at least drive bevel gear, left half axle, left half axle gear, forerunner's differential carrier,
Driven wheel of differential, forerunner's planetary gear shaft, forerunner's planetary gear, forerunner's planet wheel carrier, right axle shaft gear and right axle shaft, institute
It states drive bevel gear and is fixedly connected by spline with the front axle, the driven wheel of differential is fixed on by driven wheel of differential bolt
It is engaged on forerunner's differential carrier and with the drive bevel gear；It is provided with described in multiple groups on forerunner's planet wheel carrier
Forerunner's planetary gear shaft, forerunner's planetary gear shaft are uniformly arranged along the circumferential direction of the driven wheel of differential, forerunner's planet
Gear is arranged in forerunner's planetary gear shaft and is freely rotatable, forerunner's planet wheel carrier and forerunner's differential
Device shell phase connects, and the left half axle and right axle shaft pass through spline gear respectively and be sleeved in left half axle gear and right axle shaft gear, institute
Forerunner's planetary gear two sides are stated to engage with the left half axle gear and right axle shaft gear respectively and form differential transmission systems.
During concrete application, external impetus is transferred to input shaft and receives power and drive gear a driving gear, master of reversing gear
Moving gear, two gear driving gear and three gear driving gear rotations, four drive one engaged to keep off driven gear, reverse gear respectively
Driven gear, second gear driven gear and three gear driven gear rotations, back fork control one is reversed gear, and combined cover is mobile, and realization is fallen
Gear combined cover with reverse gear driven gear or a gear driven gear engages, jackshaft passes through 4 wheel driven driving gear to differential shaft assembly
Output is reversed gear or one grade, and two or the three gear fork controls two or three keep off combined cover and move along two or the three gear splined hub and realize two or three
Gear combined cover reverses gear driven gear with two or three gear driven gears engage, and jackshaft passes through 4 wheel driven driving gear to differential shaft group
Part exports second gear or third gear.
The 4 wheel driven shift fork is connected with the 4 wheel driven driving gear, and the 4 wheel driven shift fork, which can drive, described states 4 wheel driven driving tooth
Take turns sliding axially along the jackshaft, and can realize that the 4 wheel driven driving gear is engaged with front axle gear, or and differential mechanism from
Moving gear engagement, or engaged simultaneously with rear axle driven gear and differential mechanism driven gear, or engaged with rear axle driven gear, it is real
Existing different location power transmission.At front end forerunner position, 4 wheel driven driving gear is only engaged with front axle gear 4 wheel driven shift fork, this
When, it is free to rotate due to the unpowered transmission of planet wheel carrier, independent forerunner cannot be in rear-guard output power, system
State；When forerunner, the drive bevel gear on front axle is engaged with the driven wheel of differential of bevel gear shaft component imparts power to forerunner
Power is transferred to right drive axle assemblies and left drive axle assemblies by gear member differential assembly by component, the bevel gear shaft component.
At intermediate differential 4 wheel driven position, 4 wheel driven driving gear is only engaged with differential mechanism driven gear 4 wheel driven shift fork, power
By planet wheel carrier, it is transferred to planetary gear shaft, then is transferred to planetary gear, front axle is transferred to after differential with after
Axis realizes differential 4 wheel driven.
4 wheel driven shift fork at intermediate differential locking 4 wheel driven position, 4 wheel driven driving gear and rear axle driven gear and differential mechanism from
Moving gear engages simultaneously, and 4 wheel driven driving gear engages simultaneously with rear axle driven gear and differential mechanism driven gear, planetary gear shaft
Frame is identical with the revolving speed of rear-guard, front and back indifferential, is in differential locking 4 wheel driven state.
At most rear side rear-guard position, 4 wheel driven driving gear is only engaged with rear axle driven gear 4 wheel driven shift fork, drives rear axle,
Realize independent rear-guard.At this point, due to the unpowered transmission of planet wheel carrier, it is free to rotate, cannot be to rear-guard output power
System is in independent forerunner's state.
The utility model is simplified and has been strengthened to differential assembly, specific: to simplify differential carrier, traditional difference first
Fast device, axle shaft gear, planetary gear, planetary gear shaft are all mounted on differential mechanism shell, and shell both ends are fixed on cabinet.This
Differential carrier is replaced with planet wheel carrier, and is sleeved on rear axle by axle sleeve by the differential assembly of utility model, with pushing away
Power axle sleeve positioning, while realizing that structure simplifies, moreover it is possible to rear axle driven gear is installed, and passes through sliding power input gear,
Realize the switching of different rear-guards, differential 4 wheel driven, differential locking 4 wheel driven；Next enhances planetary gear, since differential mechanism is in height
Planetary gear mounting condition is also strengthened although between centers rotational speed difference is small in fast end, in planetary gear inner end and outside point
It is not mounted with axle sleeve and thrust axle sleeve, reduces the frictional force of planetary gear and planet wheel carrier and planetary gear shaft.
The utility model performance is stablized, safe and reliable, compact-sized, it can be achieved that the haulage vehicle of installing the utility model exists
Underloading good road surface realizes rear wheel drive when driving, and realizes differential when driving on the non-rigid road surface of underloading or fully loaded good road surface
4 wheel driven realizes differential locking 4 wheel driven when being fully loaded with non-rigid road surface, is conducive to raising tractor and is engaged in field transhipment and road road transport
Defeated driving capability prevents tyre slip or sunken vehicle, meets the needs of various road conditions different driving mode.
Further technical solution is that the rear axle assemblies further include rear axle bolt of cover, rear Simmer ring, rear axle card
Ring, rear axle angular contact bearing and rear hubcap, the rear axle driven gear is by spline installation with rear axis connection and by described
Rear axle snap ring and rear axle axis rank limit, and described rear axle one end passes through rear axle by front axle needle bearing and preceding axis connection, the other end
Angular contact bearing is fixedly connected with the rear hubcap, and the rear hubcap is fixedly connected on the case by rear axle bolt of cover
On body.
Further technical solution is that the differential mechanism driven gear is fixed on planetary gear shaft by driven gear bolt
Frame, the preceding shaft assembly further include preceding shaft retaining ring, front axle snap ring and front axle deep groove ball bearing, described front axle one end and the rear axle
Be connected, the other end is fixed on cabinet by front axle deep groove ball bearing, the preceding shaft retaining ring and front axle snap ring be socketed in it is described before
On axis.
Further technical solution is divided between forerunner's differential carrier and the left half axle gear, right axle shaft gear
Not She You semiaxis thrust bearing, the semiaxis thrust bearing is respectively sleeved on the left half axle and right axle shaft, and the forerunner is poor
Fast device shell, left half axle gear, right axle shaft gear are in contact with the semiaxis thrust bearing；Forerunner's differential carrier and the row
Planetary gear thrust bearing is equipped between star gear, the planetary gear thrust bearing is set in the planetary gear shaft, institute
State forerunner's differential carrier, planetary gear is in contact with the planetary gear thrust bearing；The left half axle and right axle shaft cover respectively
It is located in semiaxis angular contact bearing, the semiaxis angular contact bearing is connect by bearing positioning bolt with cabinet, and the bearing is fixed
Half Simmer ring is equipped between position bolt and institute left half axle and right axle shaft.
When equispeed output, forerunner's planetary gear revolves under the action of driving force around forerunner's differential carrier, forerunner's planet
Gear does not surround forerunner's planetary gear shaft rotation, at this time left half axle and right axle shaft equispeed output.
When differential exports, forerunner's planetary gear both revolved around forerunner's differential carrier under the action of driving force, was still around
Forerunner's planetary gear shaft rotation, at this time left half axle and the output of right axle shaft differential.
Power transmission route: drive bevel gear to driven wheel of differential, until forerunner's differential carrier, until forerunner's planetary gear shaft,
To forerunner's planetary gear, it is then transferred to left half axle and right axle shaft respectively.
Further technical solution is that forerunner's differential carrier is body formula hollow ball shape or split hollow ball shape, institute
Forerunner's differential carrier is stated by bolt or rivet interlacement into a set of entirety.
Further technical solution is, the main gear shift component further include a back fork axis, two or three gear shift fork axles,
Main transformer quick change block seat, main shift lever and main transformer quick change block seat bolt, the 4 wheel driven shift assembly further include 4 wheel driven shift fork axle, 4 wheel driven
Shift seat bolt, 4 wheel driven device shift seat and 4 wheel driven gear lever, the 4 wheel driven device shift seat and main transformer quick change block seat pass through four respectively
It drives shift seat bolt and main transformer quick change block seat bolt is fixed on the cabinet, the 4 wheel driven gear lever and main shift lever are solid respectively
It is scheduled on the 4 wheel driven device shift seat and main transformer quick change block seat, the back fork axis, two or three gear shift fork axles and the main transformer
Quick change bar is connected, and the 4 wheel driven shift fork axle is connected with the 4 wheel driven gear lever, and the 4 wheel driven shift fork, two or three gear shift forks and one fall
Gear, which is dialled, to be separately positioned in the 4 wheel driven shift fork axle, a back fork axis and two or three gear shift fork axles.
Further technical solution is, the input shaft assembly further include input shaft angular contact bearing, input shaft rear end cap,
Input shaft drive end bearing bracket, input Simmer ring, input shaft end bonnet bolt, the both ends of the input shaft pass through input shaft angular contact bearing
It is connect respectively with the input shaft rear end cap and input shaft drive end bearing bracket, the input shaft rear end cap and input shaft drive end bearing bracket pass through defeated
Enter shaft end bonnet bolt to be fixed on the cabinet, input Simmer ring is equipped in at least described input shaft drive end bearing bracket.
It further includes reverse gear shaft snap ring, reverse gear shaft thrust bearing, reverse gear that further technical solution, which is the shaft assembly that reverses gear,
With reverse gear axis runner axle bearing, reverse gear through reverse gear axis runner axle bearing holder (housing, cover) on reverse gear shaft, arrange by reverse gear shaft thrust bearing
In the side of reverse gear, reverse gear shaft snap ring is arranged in reverse gear shaft two sides and reverse gear shaft is located on cabinet.
Further technical solution is, before the intermediate shaft assembly further includes jackshaft snap ring, intermediate shaft retaining ring, jackshaft
End cap, jackshaft angular contact bearing, intermediate hubcap locking plate, jackshaft bolt of cover and jackshaft rear end cap, the jackshaft
It is connected by jackshaft angular contact bearing with jackshaft drive end bearing bracket and jackshaft rear end cap, the jackshaft drive end bearing bracket and jackshaft
Rear end cap is fixed on cabinet by jackshaft bolt of cover, and at least described jackshaft drive end bearing bracket is equipped with intermediate hubcap locking plate,
The jackshaft snap ring, jackshaft retaining ring are socketed on the jackshaft.
Further technical solution is that box assembly further includes bell housing, case lid, ventilation bolt, box body bolt, drains the oil
Bolt, differential cover crab bolt and differential mechanism cover board, the ventilation bolt are arranged on the cabinet, the case lid and differential mechanism
Cover board is fixed on the cabinet by the box body bolt and differential cover crab bolt respectively, the bell housing and the case
Body is fixedly connected.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the outline drawing of gearbox involved in a kind of embodiment of the utility model；
Fig. 2 is the vertical profile figure of gearbox involved in Fig. 1；
Fig. 3 is the sectional view along the face H-H of gearbox involved in Fig. 2；
Fig. 4 is the input shaft front-end architecture schematic diagram of gearbox involved in Fig. 2；
Fig. 5 is the structural schematic diagram of main variable speed assembly involved in a kind of embodiment of the utility model；
Fig. 6 is the structural schematic diagram of differential shaft assembly involved in a kind of embodiment of the utility model；
Fig. 7 is the structural schematic diagram of preceding driving assembly involved in a kind of embodiment of the utility model；
Fig. 8 is the independent forerunner's schematic diagram of gearbox involved in a kind of embodiment of the utility model；
Fig. 9 is gearbox differential 4 wheel driven schematic diagram involved in a kind of embodiment of the utility model；
Figure 10 is gearbox differential locking 4 wheel driven schematic diagram involved in a kind of embodiment of the utility model；
Figure 11 is the independent rear-guard schematic diagram of gearbox involved in a kind of embodiment of the utility model.
In figure:
The main variable speed assembly of A box assembly B shift group B C
Driving assembly A1 bell housing before D differential shaft assembly E
A2 case lid A3 ventilation bolt A4 box body bolt
A5 cabinet A6 oil discharge screw A7 differential cover crab bolt
The main gear shift component of A8 differential mechanism cover board B1
Mono- back fork axis B12 bis- or three of B2 4 wheel driven shift assembly B11 keeps off shift fork axle
14 main transformer quick change block seat B15 main shift lever of B13 main transformer quick change block seat bolt B
Mono- back fork B17 bis- or three of B16 keeps off shift fork
B21 4 wheel driven gear lever B22 4 wheel driven shift seat B23 4 wheel driven shift seat bolt
B24 4 wheel driven shift fork axle B25 4 wheel driven shift fork C1 inputs shaft assembly
C2 reverses gear shaft assembly C3 intermediate shaft assembly C11 input shaft
C12 input shaft angular contact bearing C13 tri- keeps off driving gear C14 two gear driving gear
C15 mono- keeps off driving gear C16 and reverses gear driving gear C17 input shaft rear end cap
C18 input shaft drive end bearing bracket C19 inputs Simmer ring C110 input shaft end bonnet bolt
C21 reverse gear shaft snap ring C22 reverse gear shaft thrust bearing C23 reverse gear
C24 reverse gear axis runner axle bearing C25 reverse gear shaft C31 jackshaft
Shaft retaining ring C34 jackshaft needle bearing among C32 jackshaft snap ring C33
The C35 splined hub C37 mono- that reverses gear of driven gear C36 mono- that reverses gear reverses gear combined cover
C38 mono- keeps off driven gear C39 second gear driven gear C310 bis- or three and keeps off combined cover
C311 bis- or three keeps off splined hub C312 tri- and keeps off driven gear C313 jackshaft drive end bearing bracket
Hubcap locking plate C316 jackshaft bolt of cover among C314 jackshaft angular contact bearing C315
C317 4 wheel driven driving gear C318 jackshaft rear end cap D27 front axle snap ring
Shaft assembly D3 differential assembly before D1 rear axle assemblies D2
Simmer ring after D11 rear axle driven gear D12 rear axle bolt of cover D13
D14 rear axle D15 rear axle snap ring D16 rear axle angular contact bearing
Hubcap D18 rear axle differential gear D21 front axle after D17
Shaft retaining ring before D22 front axle needle bearing D23 front axle deep groove ball bearing D24
D25 front axle gear D26 front axle differential gear D31 driven gear bolt
D32 differential mechanism driven gear D33 planetary gear shaft D34 planetary gear
D35 planet wheel carrier D36 planet wheel carrier axle sleeve D37 planetary gear thrust axle sleeve
D38 planetary gear axle sleeve D39 differential carrier internal axle sleeve E15 right axle shaft gear
E1 drive bevel gear E2 semiaxis angular contact bearing E16 right axle shaft
Half Simmer ring E4 left half axle E5 bearing positioning bolt of E3
E6 left half axle gear E7 forerunner's differential carrier E8 semiaxis thrust bearing
E9 driven wheel of differential bolt E10 driven wheel of differential E11 forerunner's planetary gear shaft
E12 forerunner's planetary gear E13 planetary gear thrust bearing E14 forerunner's planet wheel carrier
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing, the description of this part be only it is exemplary and explanatory,
There should not be any restriction effect to the protection scope of the utility model.In addition, those skilled in the art's retouching according to this document
It states, the corresponding combination can be carried out to the feature in embodiment in this document and in different embodiments.
The utility model embodiment is as follows, referring to Fig.1~11, a kind of differential 4 wheel driven speed changer 31, including box assembly A,
Shift assembly B, main variable speed assembly C, differential shaft assembly D and preceding driving assembly E, the box assembly A include at least cabinet A5, institute
It states shift assembly B, main variable speed assembly C, differential shaft assembly D and preceding driving assembly E to be fixed on the cabinet A5, the shift
Component B includes that main gear shift component B1 and 4 wheel driven shift assembly B2, the main variable speed assembly C include input shaft assembly C1, fall
Gear shaft component C2 and intermediate shaft assembly C3, the shaft assembly C2 that reverses gear is including at least reverse gear shaft C25 and is arranged in the reverse gear shaft
Reverse gear C23, the input shaft assembly C1 on C25 including at least input shaft C11 and are fixed at the input shaft C11
On one gear driving gear C15, the driving gear C16 that reverses gear, two gear driving gear C14 and three gear driving gear C13, the centre
Shaft assembly C3 include jackshaft C31,4 wheel driven driving gear C317, one reverse gear combined cover C37 and two or three gear combined cover C310, it is described
Jackshaft C31 is equipped with the driven gear C35 that reverses gear, gear a driven gear C38, second gear driven tooth by jackshaft needle bearing C34
It takes turns the gear of C39 and three driven gear C312, the 4 wheel driven driving gear C317 and the jackshaft C31 is connected to by spline slide
On；The one gear driving gear C15, two gear driving gear C14, three gear driving gear C13 keep off driven gear with described one respectively
C38, second gear driven gear C39 and three gear driven gear C312 engagements, driving gear C16 and the reverse gear of reversing gear
C23, the driven gear C35 that reverses gear engagement；The jackshaft C31 by spline be equipped with one reverse gear splined hub C36 and two or three gear spline
Hub C311, described one reverses gear splined hub C36 setting between the gear of the driven gear C35 and one driven gear C38 that reverses gear, and described 23
Keep off splined hub C311 setting second gear driven gear C39 and three gear driven gear C312 between, described one reverse gear combined cover C37 and
Two or three gear combined cover C310 are respectively sleeved at described one and reverse gear on the gear of splined hub C36 and two or three splined hub C311, the main transformer speed
Shift assembly B1, which includes at least the gear of a back fork B16 and two or three shift fork B17, the back fork B16, can drive one to reverse gear
Combined cover C37 is moved along the described one splined hub C36 that reverses gear and is realized that one reverses gear and combined cover C37 and reverses gear driven gear C35 or one
The engagement of driven gear C38 is kept off, two or the three gear shift fork B17 can drive two or three gear combined cover C310 along two or the three gear spline
Hub C311 is mobile and realizes that two or three gear combined cover C310 keep off nibbling for driven gear C312 with the two driven gear C35 or three that reverse gear
It closes；The differential shaft assembly D includes rear axle assemblies D1, preceding shaft assembly D2 and differential assembly D3, and the rear axle assemblies D1 is at least wrapped
Include rear axle D14, rear axle driven gear D11 and rear axle differential gear D18；The preceding shaft assembly D2 includes at least front axle D21, preceding
Shaft gear D25 and front axle differential gear D26；The differential assembly D3 includes at least differential mechanism driven gear D32, planetary gear shaft
D33, planet wheel carrier D35, planetary gear thrust axle sleeve D37, planetary gear D34, planet wheel carrier axle sleeve D36, planet
Gear bush D38 and thrust axle sleeve；The front axle D21 is connected with rear axle D14 by front axle needle bearing D22, the differential mechanism
Driven gear D32 is fixed on the planet wheel carrier D35, and the planet wheel carrier D35 passes through planet wheel carrier axis
Set D36 is mounted on the rear axle D14 and can rotate along rear axle D14, the rear axle differential gear D18 and rear axle driven gear
D11 is arranged on the rear axle D14, and the rear axle driven gear D11 is located at the outside of the rear axle differential gear D18, described
Front axle gear D25, front axle differential gear D26 are arranged on the front axle D21, and it is poor that the front axle gear D25 is located at the front axle
The outside of fast gear D 26, between the planet wheel carrier D35 and the rear axle differential gear D18, front axle differential gear D26
It is respectively equipped with thrust axle sleeve, the thrust axle sleeve is respectively sleeved on the front axle D21 and rear axle D14, the planetary gear shaft
Frame D35, rear axle differential gear D18, front axle differential gear D26 are in contact with the thrust axle sleeve；The planet wheel carrier D35
Multiple planetary gear shaft D33 are equipped with, the planetary gear shaft D33 is uniformly set along the circumferential direction of the differential mechanism driven gear D32
It sets and passes through differential mechanism driven gear D32 limit, the planetary gear D34 is arranged by the planetary gear axle sleeve D38 in institute
It states on planetary gear shaft D33, planetary gear thrust axis is equipped between the planet wheel carrier D35 and the planetary gear D34
D37 is covered, the planetary gear thrust axle sleeve D37 is set on the planetary gear shaft D33, the planet wheel carrier D35, row
Star gear D 34 is in contact with the planetary gear thrust axle sleeve D37；The two sides of the planetary gear D34 respectively with front axle differential
Gear D 26 and rear axle differential gear D18 are engaged and are formed differential transmission systems 3；The 4 wheel driven shift assembly B2 includes at least four
Shift fork B25 is driven, institute's 4 wheel driven states shift fork and is connected with the 4 wheel driven driving gear C317, and the 4 wheel driven shift fork B25 can drive described state
4 wheel driven driving gear C317 slides axially along the jackshaft C31's, and can realize the 4 wheel driven driving gear C317 and front axle
Gear D 25 engages, or engages with differential mechanism driven gear D32, or simultaneously with rear axle driven gear D11 and differential mechanism driven tooth
D32 engagement is taken turns, or is engaged with rear axle driven gear D11；The precursor assemblies include at least drive bevel gear E1, left half axle E4,
Left half axle gear E6, forerunner's differential carrier E7, driven wheel of differential E10, forerunner's planetary gear shaft E11, forerunner's planetary gear E12,
Forerunner's planet wheel carrier E14, right axle shaft gear E15 and right axle shaft E16, the drive bevel gear E1 by spline and it is described before
Axis D21 is fixedly connected, and the driven wheel of differential E10 is fixed on forerunner's differential carrier by driven wheel of differential E10 bolt E9
E7 is upper and engages with the drive bevel gear E1；Forerunner's planet described in multiple groups is provided on forerunner's planet wheel carrier E14
Gear shaft E11, forerunner's planetary gear shaft E11 are uniformly arranged along the circumferential direction of the driven wheel of differential E10, forerunner's planet
Gear E12 is arranged on forerunner's planetary gear shaft E11 and is freely rotatable, forerunner's planet wheel carrier E14 and institute
It states forerunner's differential carrier E7 to be connected, the left half axle E4 and right axle shaft E16 pass through spline gear respectively and be sleeved on left half axle gear
In E6 and right axle shaft gear E15, the two sides of forerunner's planetary gear E12 respectively with the left half axle gear E6 and right axle shaft tooth
Wheel E15 is engaged and is formed differential transmission systems 3.
During concrete application, such as Fig. 2~7, external impetus is transferred to input shaft C11 and receives power and drive a gear actively
Gear C 15, the driving gear C16 that reverses gear, two gear driving gear C14 and three gear driving gear C13 rotation, four respectively drive with
Its gear driven gear C38 engaged, the driven gear C35 that reverses gear, the gear of second gear driven gear C39 and three driven gear C312 turn
Dynamic, the combined cover C37 that reverses gear of back fork B16 control one is mobile, and realization is reversed gear combined cover and the driven gear C35 or one that reverses gear
The engagement of driven gear C38 is kept off, jackshaft C31 is reversed gear or one grade by 4 wheel driven driving gear C317 to differential shaft assembly D output,
Two or three gear shift fork B17 control, two or the three gear combined cover C310 is moved along two or the three gear splined hub C311 and is realized two or three gear knots
Trap C310 is engaged with two gear of the driven gear C35 or three driven gear C312 that reverse gear, and jackshaft C31 passes through 4 wheel driven driving tooth
It takes turns C317 and exports second gear or third gear to differential shaft assembly D.
The 4 wheel driven shift fork B25 is connected with the 4 wheel driven driving gear C317, and the 4 wheel driven shift fork B25 can drive described state
4 wheel driven driving gear C317 slides axially along the jackshaft C31's, and can realize the 4 wheel driven driving gear C317 and front axle
Gear D 25 engages, or engages with differential mechanism driven gear D32, or simultaneously with rear axle driven gear D11 and differential mechanism driven tooth
D32 engagement is taken turns, or is engaged with rear axle driven gear D11, realizes different location power transmission.As shown in figure 8,4 wheel driven shift fork B25
At front end forerunner position, 4 wheel driven driving gear C317 is only engaged with front axle gear D25, at this point, due to planet wheel carrier
Transmission that D35 is unpowered, it is free to rotate, independent forerunner's state cannot be in rear-guard output power, system；When forerunner, front axle
Drive bevel gear E1 on D21 is engaged with the driven wheel of differential E10 of bevel gear shaft component imparts power to precursor assemblies, institute
It states bevel gear shaft component and power is transferred to by right drive axle assemblies and left drive axle assemblies by gear member differential assembly D3.
As shown in figure 9,4 wheel driven shift fork B25 is at intermediate differential 4 wheel driven position, 4 wheel driven driving gear C317 only with differential mechanism
Driven gear D32 engagement, power pass through planet wheel carrier D35, are transferred to planetary gear shaft D33, then be transferred to planetary gear
D34 is transferred to front axle D21 and rear axle D14 after differential, realizes differential 4 wheel driven.
As shown in Figure 10, for 4 wheel driven shift fork B25 at intermediate differential locking 4 wheel driven position, 4 wheel driven driving gear C317 is with after
Axis driven gear D11 and differential mechanism driven gear D32 are engaged simultaneously, 4 wheel driven driving gear C317 and rear axle driven gear D11 and
Differential mechanism driven gear D32 is engaged simultaneously, and planet wheel carrier D35 is identical with the revolving speed of rear-guard, front and back indifferential, is in differential
Locking 4 wheel driven state.
As shown in figure 11, for 4 wheel driven shift fork B25 at most rear side rear-guard position, 4 wheel driven driving gear C317 is only driven with rear axle
Gear D 11 engages, and drives rear axle D14, realizes independent rear-guard.At this point, due to the unpowered transmission of planet wheel carrier D35, it can be certainly
By rotating, independent forerunner's state cannot be in rear-guard output power, system.
The utility model is simplified and has been strengthened to differential assembly D3, specific: differential carrier is simplified first, it is traditional
Differential mechanism, axle shaft gear, planetary gear D34, planetary gear shaft D33 are mounted on differential mechanism shell, and shell both ends are fixed on
On cabinet A5.The differential assembly of the utility model replaces differential carrier with planet wheel carrier D35, and passes through axle sleeve set
It on rear axle D14, is positioned with thrust axle sleeve, while realizing that structure simplifies, moreover it is possible to rear axle driven gear D11 is installed, and
By sliding power input gear, the switching of different rear-guards, differential 4 wheel driven, differential locking 4 wheel driven is realized；Next enhances planet
Gear D 34, although between centers rotational speed difference is small, also carries out the mounting condition of planetary gear D34 since differential mechanism is in speed end
Strengthen, is mounted with axle sleeve and thrust axle sleeve respectively in 34 inner end of planet gear D and outside, reduces planetary gear D34 and planet tooth
The frictional force of axle stand D35 and planetary gear shaft D33.
The utility model performance is stablized, safe and reliable, compact-sized, it can be achieved that the haulage vehicle of installing the utility model exists
Underloading good road surface realizes rear wheel drive when driving, and realizes differential when driving on the non-rigid road surface of underloading or fully loaded good road surface
4 wheel driven realizes differential locking 4 wheel driven when being fully loaded with non-rigid road surface, is conducive to raising tractor and is engaged in field transhipment and road road transport
Defeated driving capability prevents tyre slip or sunken vehicle, meets the needs of various road conditions different driving mode.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 6, the rear axle assemblies D1 further include
Rear axle bolt of cover D12, rear Simmer ring D13, rear axle snap ring D15, rear axle angular contact bearing D16 and rear hubcap D17, it is described
The rear axle snap ring D15 is connect and passed through with rear axle D14 by spline installation by rear axle driven gear D11 and rear axle D14 axis rank limits
Position, the one end the rear axle D14 are connect by front axle needle bearing D22 with front axle D21, and the other end passes through rear axle angular contact bearing
D16 is fixedly connected with the rear hubcap D17, and the rear hubcap D17 is fixedly connected on described by rear axle bolt of cover D12
On cabinet A5.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 6, the differential mechanism driven gear D32
It is fixed on planet wheel carrier D35 by driven gear bolt D31, the preceding shaft assembly D2 further includes preceding shaft retaining ring D24, front axle
Snap ring D27 and front axle deep groove ball bearing D23, the one end the front axle D21 are connected with the rear axle D14, and the other end passes through front axle depth
Ditch ball bearing D23 is fixed on cabinet A5, and the preceding shaft retaining ring D24 and front axle snap ring D27 are socketed on the front axle D21.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 7, forerunner's differential carrier E7 with
Semiaxis thrust bearing E8 is respectively equipped between the left half axle gear E6, right axle shaft gear E15, the semiaxis thrust bearing E8 divides
It is not set on the left half axle E4 and right axle shaft E16, forerunner's differential carrier E7, left half axle gear E6, right axle shaft gear
E15 is in contact with the semiaxis thrust bearing E8；Planet is equipped between forerunner's differential carrier E7 and the planetary gear D34
Gear thrust bearing E13, the planetary gear thrust bearing E13 are set on the planetary gear shaft D33, forerunner's differential
Device shell E7, planetary gear D34 are in contact with the planetary gear thrust bearing E13；The left half axle E4 and right axle shaft E16 points
It is not set in semiaxis angular contact bearing E2, the semiaxis angular contact bearing E2 is connected by bearing positioning bolt E5 and cabinet A5
It connects, half Simmer ring E3 is equipped between the bearing positioning bolt E5 and institute left half axle E4 and right axle shaft E16.
When equispeed output, forerunner's planetary gear E12 revolves under the action of driving force around forerunner's differential carrier E7, preceding
It drives planetary gear E12 and does not surround forerunner's planetary gear shaft E11 rotation, at this time left half axle E4 and right axle shaft E16 equispeed output.
When differential exports, forerunner's planetary gear E12 both revolved around forerunner's differential carrier E7 under the action of driving force,
It is still around forerunner's planetary gear shaft E11 rotation, at this time left half axle E4 and the output of right axle shaft E16 differential.
Power transmission route: drive bevel gear E1 to driven wheel of differential E10, until forerunner differential carrier E7, until forerunner's planet
Gear shaft E11, until forerunner planetary gear E12, is then transferred to left half axle E4 and right axle shaft E16 respectively.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 7, forerunner's differential carrier E7 are
Body formula hollow ball shape or split hollow ball shape, forerunner's differential carrier E7 is by bolt or rivet interlacement at a set of entirety.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 3, the main gear shift component B1
It further include a back fork axis B11, two or three gear shift fork axle B12, main transformer quick change block seat B14, main shift lever B15 and main gear shift
Seat B14 bolt B 13, the 4 wheel driven shift assembly B2 further include that 4 wheel driven shift fork axle B24,4 wheel driven shift seat bolt B 23,4 wheel driven device change
Block seat and 4 wheel driven gear lever B21, the 4 wheel driven device shift seat and main transformer quick change block seat B14 pass through 4 wheel driven shift seat bolt respectively
B23 and main transformer quick change block seat B14 bolt B 13 are fixed on the cabinet A5, the 4 wheel driven gear lever B21 and main shift lever B15
It is separately fixed on the 4 wheel driven device shift seat and main transformer quick change block seat B14, the back fork axis B11, two or three gear shift forks
Axis B12 is connected with the main transformer quick change bar, and the 4 wheel driven shift fork axle B24 is connected with the 4 wheel driven gear lever B21, the 4 wheel driven
Shift fork B25, two or three gear shift fork B17 and one reverse gear dial be separately positioned on the 4 wheel driven shift fork axle B24, a back fork axis B11 and
On two or three gear shift fork axle B12.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 4 and Fig. 5, the input shaft assembly C1
Further include input shaft angular contact bearing C12, input shaft rear end cap C17, input shaft drive end bearing bracket C18, inputs Simmer ring C19, is defeated
Enter shaft end bonnet bolt C110, the both ends of the input shaft C11 are by input shaft angular contact bearing C12 respectively and after the input shaft
End cap C17 is connected with input shaft drive end bearing bracket C18, and the input shaft rear end cap C17 and input shaft drive end bearing bracket C18 pass through input shaft end
Bonnet bolt C110 is fixed on the cabinet A5, and input Simmer ring C19 is equipped in at least described input shaft drive end bearing bracket C18.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 5, the shaft assembly C2 that reverses gear further include down
Gear shaft snap ring C21, reverse gear shaft thrust bearing C22, reverse gear C23 and reverse gear axis runner axle bearing C24, reverse gear C23 pass through
Reverse gear axis runner axle bearing C24 is sleeved on reverse gear shaft C25, and reverse gear shaft thrust bearing C22 is arranged in the side of reverse gear C23,
Reverse gear shaft snap ring C21 is arranged in the two sides reverse gear shaft C25 and reverse gear shaft C25 is located on cabinet A5.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 5, the intermediate shaft assembly C3 are also wrapped
Include jackshaft snap ring C32, intermediate shaft retaining ring C33, jackshaft drive end bearing bracket C313, jackshaft angular contact bearing C314, intermediate shaft end
Cover lock piece C315, jackshaft bolt of cover C316 and jackshaft rear end cap C318, the jackshaft C31 pass through jackshaft angular contact
Bearing C314 is connected with jackshaft drive end bearing bracket C313 and jackshaft rear end cap C318, the jackshaft drive end bearing bracket C313 and centre
Shaft rear end lid C318 is fixed on cabinet A5 by jackshaft bolt of cover C316, and at least described jackshaft drive end bearing bracket C313 is equipped with
Intermediate hubcap locking plate C315, the jackshaft snap ring C32, centre shaft retaining ring C33 are socketed on the jackshaft C31.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 1 and Fig. 2, box assembly A further includes
Bell housing A1, case lid A2, ventilation bolt A3, box body bolt A4, oil discharge screw A6, differential mechanism cover board A8 bolt A7 and differential mechanism
Cover board A8, the ventilation bolt A3 are arranged on the cabinet A5, and the case lid A2 and differential mechanism cover board A8 pass through described respectively
Box body bolt A4 and differential mechanism cover board A8 bolt A7 are fixed on the cabinet A5, and the bell housing A1 and the cabinet A5 are solid
Fixed connection.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of differential 4 wheel driven speed changer, which is characterized in that including box assembly, shift assembly, main variable speed assembly, differential shaft group
Part and preceding driving assembly, the box assembly include at least cabinet, the shift assembly, main variable speed assembly, differential shaft assembly and
Preceding driving assembly is fixed on the cabinet, and the shift assembly includes main gear shift component and 4 wheel driven shift assembly, described
Main variable speed assembly includes input shaft assembly, reverse gear shaft assembly and intermediate shaft assembly, and the shaft assembly that reverses gear is including at least reverse gear shaft
With the reverse gear being arranged on the reverse gear shaft, the input shaft assembly includes at least input shaft and is fixed at described defeated
Enter a gear driving gear, the driving gear that reverses gear, two gear driving gear and the three gear driving gears on axis, the intermediate shaft assembly packet
Include jackshaft, 4 wheel driven driving gear, one reverse gear combined cover and two or three gear combined covers, the jackshaft pass through jackshaft needle bearing
Pass through equipped with the driven gear that reverses gear, a gear driven gear, second gear driven gear and three gear driven gears, the 4 wheel driven driving gear
Spline slide is connected on the jackshaft；It is described one gear driving gear, two gear driving gear, three gear driving gears respectively with institute
State a gear driven gear, second gear driven gear and three gear driven gears engagements, reverse gear driving gear and the reverse gear,
The driven gear that reverses gear engagement；The jackshaft by spline be equipped with one reverse gear splined hub and two or three gear splined hubs, described one reverses gear
Splined hub setting is being reversed gear between driven gear and a gear driven gear, and two or the three gear splined hub is arranged in second gear driven gear
And three gear driven gear between, described one reverse gear combined cover and two or three gear combined covers be respectively sleeved at described one reverse gear splined hub and
In two or three gear splined hubs, the main gear shift component includes at least a back fork and two or three gear shift forks, and described one, which reverses gear, dials
Fork can drive one reverse gear combined cover along described one reverse gear splined hub move and realize one reverse gear combined cover and reverse gear driven gear or
The engagement of one gear driven gear, it is simultaneously real that two or the three gear shift fork can drive two or three gear combined covers to move along two or the three gear splined hub
Existing two or three gear combined covers reverse gear with two and driven gear or three keep off engaging for driven gears；The differential shaft assembly includes rear axle group
Part, preceding shaft assembly and differential assembly, the rear axle assemblies include at least rear axle, rear axle driven gear and rear axle differential gear；Institute
Shaft assembly includes at least front axle, front axle gear and front axle differential gear before stating；It is driven that the differential assembly includes at least differential mechanism
Gear, planetary gear shaft, planet wheel carrier, planetary gear thrust axle sleeve, planetary gear, planet wheel carrier axle sleeve, planet
Gear bush and thrust axle sleeve；The front axle is connected with rear axle by front axle needle bearing, and the differential mechanism driven gear is fixed
On the planet wheel carrier, the planet wheel carrier is mounted on the rear axle by planet wheel carrier axle sleeve and can
It is rotated along rear axle, the rear axle differential gear and rear axle driven gear are arranged on the rear axle, rear axle driven gear position
In the outside of the rear axle differential gear, the front axle gear, front axle differential gear are arranged on the front axle, the front axle tooth
Wheel is located at the outside of the front axle differential gear, the planet wheel carrier and the rear axle differential gear, front axle differential gear
Between be respectively equipped with thrust axle sleeve, the thrust axle sleeve is respectively sleeved on the front axle and rear axle, the planet wheel carrier,
Rear axle differential gear, front axle differential gear are in contact with the thrust axle sleeve；The planet wheel carrier is equipped with multiple planets
Gear shaft, the planetary gear shaft are uniformly arranged along the circumferential direction of the differential mechanism driven gear and pass through differential mechanism driven gear and limit
Position, the planetary gear is set in the planetary gear shaft by the planetary gear shaft, the planet wheel carrier and
Planetary gear thrust axle sleeve is equipped between the planetary gear, the planetary gear thrust axle sleeve is set in the planetary gear shaft
On, the planet wheel carrier, planetary gear are in contact with the planetary gear thrust axle sleeve；The planetary gear two sides point
It is not engaged with front axle differential gear and rear axle differential gear and forms differential transmission systems；The 4 wheel driven shift assembly includes at least
4 wheel driven shift fork, the 4 wheel driven shift fork are connected with the 4 wheel driven driving gear, and the 4 wheel driven shift fork, which can drive, described states 4 wheel driven actively
Gear slides axially along the jackshaft, and can realize that the 4 wheel driven driving gear is engaged with front axle gear, or and differential mechanism
Driven gear engagement, or engaged simultaneously with rear axle driven gear and differential mechanism driven gear, or engaged with rear axle driven gear；
The precursor assemblies include at least drive bevel gear, left half axle, left half axle gear, forerunner's differential carrier, driven wheel of differential, forerunner
Planetary gear shaft, forerunner's planetary gear, forerunner's planet wheel carrier, right axle shaft gear and right axle shaft, the drive bevel gear are logical
It crosses spline to be fixedly connected with the front axle, the driven wheel of differential is fixed on forerunner's differential mechanism by driven wheel of differential bolt
It is engaged on shell and with the drive bevel gear；Forerunner's planetary gear described in multiple groups is provided on forerunner's planet wheel carrier
Axis, forerunner's planetary gear shaft are uniformly arranged along the circumferential direction of the driven wheel of differential, and forerunner's planetary gear is arranged in institute
It states in forerunner's planetary gear shaft and is freely rotatable, forerunner's planet wheel carrier is connected with forerunner's differential carrier, institute
It states left half axle and right axle shaft and passes through spline gear respectively and be sleeved in left half axle gear and right axle shaft gear, forerunner's planet tooth
It is engaged respectively with the left half axle gear and right axle shaft gear and forms differential transmission systems in the two sides of wheel.
2. differential 4 wheel driven speed changer according to claim 1, which is characterized in that the rear axle assemblies further include rear hubcap
Bolt, rear Simmer ring, rear axle snap ring, rear axle angular contact bearing and rear hubcap, the rear axle driven gear are pacified by spline
Dress is limited with rear axis connection and by the rear axle snap ring and rear axle axis rank, and described rear axle one end is by front axle needle bearing with before
Axis connection, the other end are fixedly connected by rear axle angular contact bearing with the rear hubcap, and the rear hubcap passes through rear shaft end
Bonnet bolt is fixedly connected on the cabinet.
3. differential 4 wheel driven speed changer according to claim 2, which is characterized in that the differential mechanism driven gear passes through driven
Gear bolt is fixed on planet wheel carrier, and the preceding shaft assembly further includes preceding shaft retaining ring, front axle snap ring and front axle deep-groove ball axis
It holds, described front axle one end is connected with the rear axle, and the other end is fixed on cabinet by front axle deep groove ball bearing, the preceding axle bumper
Circle and front axle snap ring are socketed on the front axle.
4. differential 4 wheel driven speed changer according to any one of claims 1 to 3, which is characterized in that forerunner's differential mechanism
Semiaxis thrust bearing is respectively equipped between shell and the left half axle gear, right axle shaft gear, the semiaxis thrust bearing covers respectively
It is located on the left half axle and right axle shaft, forerunner's differential carrier, left half axle gear, right axle shaft gear and half axle thrust
Bearing is in contact；Planetary gear thrust bearing, the planet tooth are equipped between forerunner's differential carrier and the planetary gear
Wheel thrust bearing is set in the planetary gear shaft, forerunner's differential carrier, planetary gear and the planetary gear thrust
Bearing is in contact；The left half axle and right axle shaft are respectively sleeved in semiaxis angular contact bearing, and the semiaxis angular contact bearing is logical
It crosses bearing positioning bolt to connect with cabinet, half sealing is equipped between the bearing positioning bolt and institute left half axle and right axle shaft
Circle.
5. differential 4 wheel driven speed changer according to claim 4, which is characterized in that forerunner's differential carrier is that body formula is hollow
Spherical or split hollow ball shape, forerunner's differential carrier is by bolt or rivet interlacement at a set of entirety.
6. differential 4 wheel driven speed changer according to claim 5, which is characterized in that the main gear shift component further includes one
Back fork axis, two or three gear shift fork axles, main transformer quick change block seat, main shift lever and main transformer quick change block seat bolt, the 4 wheel driven shift
Component further includes 4 wheel driven shift fork axle, 4 wheel driven shift seat bolt, 4 wheel driven device shift seat and 4 wheel driven gear lever, the 4 wheel driven device shift seat
It is fixed on the cabinet by 4 wheel driven shift seat bolt and main transformer quick change block seat bolt respectively with main transformer quick change block seat, described four
It drives gear lever and main shift lever is separately fixed on the 4 wheel driven device shift seat and main transformer quick change block seat, a back fork
Axis, two or three gear shift fork axles are connected with the main transformer quick change bar, and the 4 wheel driven shift fork axle is connected with the 4 wheel driven gear lever, described
4 wheel driven shift fork, two or three gear shift forks and one, which reverse gear to dial, is separately positioned on the 4 wheel driven shift fork axle, a back fork axis and two or three gears group
On fork shaft.
7. differential 4 wheel driven speed changer according to claim 6, which is characterized in that the input shaft assembly further includes input shaft
Angular contact bearing, input shaft rear end cap, input shaft drive end bearing bracket, input Simmer ring, input shaft end bonnet bolt, the input shaft
Both ends are connect with the input shaft rear end cap and input shaft drive end bearing bracket respectively by input shaft angular contact bearing, after the input shaft
End cap and input shaft drive end bearing bracket are fixed on the cabinet by input shaft end bonnet bolt, are set in at least described input shaft drive end bearing bracket
There is input Simmer ring.
8. differential 4 wheel driven speed changer according to claim 7, which is characterized in that the shaft assembly that reverses gear further includes reverse gear shaft card
Ring, reverse gear shaft thrust bearing, reverse gear and reverse gear axis runner axle bearing, reverse gear is by reverse gear axis runner axle bearing holder (housing, cover) mounted in
On gear shaft, reverse gear shaft thrust bearing is arranged in the side of reverse gear, and reverse gear shaft snap ring is arranged in reverse gear shaft two sides for reverse gear shaft
It is located on cabinet.
9. differential 4 wheel driven speed changer according to claim 8, which is characterized in that the intermediate shaft assembly further includes jackshaft
Snap ring, intermediate shaft retaining ring, jackshaft drive end bearing bracket, jackshaft angular contact bearing, intermediate hubcap locking plate, jackshaft bolt of cover and
Jackshaft rear end cap, the jackshaft are connected by jackshaft angular contact bearing with jackshaft drive end bearing bracket and jackshaft rear end cap,
The jackshaft drive end bearing bracket and jackshaft rear end cap are fixed on cabinet by jackshaft bolt of cover, before at least described jackshaft
End cap is equipped with intermediate hubcap locking plate, and the jackshaft snap ring, jackshaft retaining ring are socketed on the jackshaft.
10. differential 4 wheel driven speed changer according to claim 9, which is characterized in that box assembly further includes bell housing, case
Lid, ventilation bolt, box body bolt, oil discharge screw, differential cover crab bolt and differential mechanism cover board, the ventilation bolt are arranged in institute
It states on cabinet, the case lid and differential mechanism cover board are fixed on the case by the box body bolt and differential cover crab bolt respectively
On body, the bell housing is fixedly connected with the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754815.2U CN208474432U (en) | 2018-05-18 | 2018-05-18 | A kind of differential 4 wheel driven speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754815.2U CN208474432U (en) | 2018-05-18 | 2018-05-18 | A kind of differential 4 wheel driven speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474432U true CN208474432U (en) | 2019-02-05 |
Family
ID=65218220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820754815.2U Withdrawn - After Issue CN208474432U (en) | 2018-05-18 | 2018-05-18 | A kind of differential 4 wheel driven speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468774A (en) * | 2018-05-18 | 2018-08-31 | 湖南农业大学 | A kind of differential 4 wheel driven speed changer |
| CN110131367A (en) * | 2019-04-26 | 2019-08-16 | 长沙桑铼特农业机械设备有限公司 | A kind of power drive system and tractor |
-
2018
- 2018-05-18 CN CN201820754815.2U patent/CN208474432U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468774A (en) * | 2018-05-18 | 2018-08-31 | 湖南农业大学 | A kind of differential 4 wheel driven speed changer |
| CN108468774B (en) * | 2018-05-18 | 2024-03-26 | 湖南农业大学 | Differential four-wheel drive transmission |
| CN110131367A (en) * | 2019-04-26 | 2019-08-16 | 长沙桑铼特农业机械设备有限公司 | A kind of power drive system and tractor |
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