CN208749982U - A kind of differential four-wheel-drive transfer case - Google Patents
A kind of differential four-wheel-drive transfer case Download PDFInfo
- Publication number
- CN208749982U CN208749982U CN201820754906.6U CN201820754906U CN208749982U CN 208749982 U CN208749982 U CN 208749982U CN 201820754906 U CN201820754906 U CN 201820754906U CN 208749982 U CN208749982 U CN 208749982U
- Authority
- CN
- China
- Prior art keywords
- axle
- differential
- shift fork
- gear
- input shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 241001656951 Protheca Species 0.000 claims description 23
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 21
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000153246 Anteros Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Retarders (AREA)
Abstract
The utility model relates to a kind of differential four-wheel-drive transfer cases, including box assembly, input shaft assembly, intermediate shaft assembly, differential shaft assembly and pull-fork assembly, differential shaft assembly includes rear axle assemblies, preceding shaft assembly and differential assembly, and rear axle assemblies include at least rear axle, rear axle driven gear and rear axle differential gear；Preceding shaft assembly includes at least front axle and front axle differential gear；Differential assembly includes at least differential mechanism driven gear, planetary gear shaft, planet wheel carrier, planetary gear thrust axle sleeve, planetary gear, planet wheel carrier axle sleeve, planetary gear axle sleeve and thrust axle sleeve, and jackshaft drive pinion can be engaged with differential mechanism driven gear and/or rear axle driven gear.The utility model performance is stable, safe and reliable, haulage vehicle can be achieved and realize rear wheel drive when driving in underloading good road surface, 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, is suitable for the operating condition of a variety of variations.
Description
Technical field
The utility model belongs to transfer case technical field, and in particular to a kind of differential four-wheel-drive transfer case.
Background technique
Mainly by 3 kinds of forerunner, rear-guard and 4 wheel driven etc. in Automobile drive mode.The 4 wheel driven system on passenger car is applied at present
System, mainly there is time sharing, in due course 4 wheel driven and full-time four-wheel drive etc..Wherein, time sharing system is due to needing without inter-axle differential
It wants driver according to road conditions, reasonably selects 4 wheel driven or two drive schemes, it is improper to select, it is easy to lead to drive system internal power stream
Consumption.The shortcomings that in due course 4 wheel driven can overcome time sharing, principle are to judge road conditions using computer technology, automatically select two drives
Or 4 wheel driven, this system are typically used on high-grade passenger car due to needing electric-control system to assist.Full-time four-wheel drive system is due to axis
Between be mounted with torsional differential gear, can realize 4 wheel driven in whole process, not need manually or electric-control system intervention, but torsional differential gear knot
Structure is complicated, expensive, only uses on a small number of high-end vehicles.Using poor between each bridge of penetration type drive axle on heavy goods vehicle
Fast 4 wheel driven technology, due to the emphasis of penetration type drive axle be increase rear-guard driving force, and and non-composed a11wheel drive structure, therefore
Requirement to differential locking is low, frequently with open type differential between penetration type drive axle.
However, the operating condition variation of tractor is greatly in tractor transportation vehicle field.After underloading good road surface needs when driving
Wheel drive, and differential 4 wheel driven is needed when driving on the non-rigid road surface of underloading or fully loaded good road surface, when being fully loaded with non-rigid road surface
Need differential locking 4 wheel driven.
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 four-wheel-drive transfer case 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, meets various working need
It wants, the differential four-wheel-drive transfer case 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 four-wheel-drive transfer case, including box assembly, input shaft assembly, intermediate shaft assembly, differential shaft assembly and pull-fork assembly, institute
Box assembly is stated including at least cabinet, the input shaft assembly, intermediate shaft assembly, differential shaft assembly and pull-fork assembly are fixed on institute
It states on cabinet, the input shaft gear that the input shaft assembly includes at least input shaft and is arranged on input shaft, the centre
Shaft assembly includes at least jackshaft and the jackshaft drive pinion and counter shaft driven gear that are arranged on jackshaft, it is described in
Between axis driven gear engaged with the input shaft gear, the pull-fork assembly include at least shift fork, the shift fork and the centre
Axis driving gear is connected, and the shift fork can drive the jackshaft drive pinion can sliding axially along the jackshaft；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 and front axle differential gear；The differential assembly includes at least
Differential mechanism driven gear, planetary gear shaft, planet wheel carrier, planetary gear thrust axle sleeve, planetary gear, planet wheel carrier
Axle sleeve, planetary gear axle sleeve and thrust axle sleeve；The front axle is connected with rear axle by needle bearing, the differential mechanism driven gear
It 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 be rotated in rear axle, the rear axle differential gear and rear axle driven gear are arranged on the rear axle, the rear axle driven tooth
Wheel is located at the outside of the rear axle differential gear, and the front axle differential gear is arranged on the front axle, the planetary gear shaft
Thrust axle sleeve is respectively equipped between frame and the rear axle differential gear, front axle differential gear, the thrust axle sleeve is respectively sleeved at
On the front axle and rear axle, the planet wheel carrier, rear axle differential gear, front axle differential gear connect with the thrust axle sleeve
Touching；The planet wheel carrier is equipped with multiple planetary gear shafts, and the planetary gear is covered by the planetary gear shaft to be arranged
In the planetary gear shaft, planetary gear thrust axle sleeve, institute are equipped between the planet wheel carrier and the planetary gear
It states planetary gear thrust axle sleeve to be set in the planetary gear shaft, the planet wheel carrier, planetary gear and the planet
Gear thrust axle sleeve is in contact；The planetary gear two sides respectively with front axle differential gear and rear axle differential gear engages and group
At differential transmission systems；The jackshaft drive pinion can be engaged with differential mechanism driven gear and/or rear axle driven gear.
Since transfer case is mounted between the main reducing gear of drive axle of front and back, belong to speed end, the differential group in transfer case
Part revolving speed is high, and stress is small, and between centers rotational speed difference is small.Therefore differential assembly is simplified and has been strengthened, it is specific: to simplify difference first
Fast device shell, traditional differential mechanism, axle shaft gear, planetary gear, planetary gear shaft are all mounted on differential mechanism shell, shell both ends
It is fixed on cabinet.The differential assembly of the utility model replaces differential carrier with planet wheel carrier, and passes through axle sleeve set
It on rear axle, is positioned with thrust axle sleeve, while realizing that structure simplifies, moreover it is possible to rear axle driven gear be installed, and pass through cunning
Dynamic power input gear, realizes the switching of rear-guard, differential 4 wheel driven, differential locking 4 wheel driven；Next enhances planetary gear, due to difference
Fast device is in speed end, although between centers rotational speed difference is small, is also strengthened to planetary gear mounting condition, in planetary gear
End and outside are mounted with axle sleeve and thrust axle sleeve respectively, reduce the friction of planetary gear and planet wheel carrier and planetary gear shaft
Power.It is preferred that planetary gear shaft and planetary gear circumferentially arrange that quantity is more than or equal to 2, it is less than or equal to 4.
During concrete application, external impetus is transferred to input shaft, is transferred to input shaft gear by input shaft, then passes
It is handed to counter shaft driven gear, then jackshaft drive pinion is transferred to by jackshaft, jackshaft drive pinion can be with differential mechanism
Different location power transmission is realized in driven gear and/or the engagement of rear axle driven gear.When shift fork axle is at the leftmost side, jackshaft master
Moving gear is only engaged with differential mechanism driven gear, and power is transferred to planetary gear shaft by planet wheel carrier, then is transferred to row
Star gear is transferred to front axle and rear axle after differential, realizes differential 4 wheel driven；When shift fork axle be located at intermediate predetermined position,
Jackshaft drive pinion is engaged with differential mechanism driven gear and rear axle driven gear simultaneously, due to jackshaft drive pinion simultaneously with
Differential mechanism driven gear and the engagement of rear axle driven gear so that planet wheel carrier is identical with rear drive shaft revolving speed, at this time before and after
Axis indifferential realizes differential locking 4 wheel driven；When shift fork axle is at the rightmost side, jackshaft drive pinion is nibbled with rear axle driven gear
Close, only rear axle output power, planet wheel carrier is free end at this time, free to rotate, cannot external output power, realize single
Only rear-guard.
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 side
Case is that the pull-fork assembly further includes shift fork axle rear enclosure, shift fork axle, shift fork axle protheca, gear shifting pulling head, shift fork head arm and shift fork head
Arm seat, the shift fork axle rear enclosure are threadedly coupled with the cabinet, and the shift fork axle protheca is fixed on by shift fork axle front side bolt
On cabinet, the both ends of the shift fork axle are respectively sleeved in the shift fork axle rear enclosure and shift fork axle protheca, the shift fork head arm
Seat and the shift fork are fixedly connected in the shift fork axle, and the shift fork head arm is connected with the shift fork head arm seat, the shift
Shifting block is mounted on cabinet and connect with the shift fork head arm, and stirring the gear shifting pulling head can drive the shift fork axle to dial along described
The axial movement of fork shaft rear enclosure and shift fork axle protheca.In this way, stirring shift fork head arm when stirring gear shifting pulling head, shift fork is driven
Axis is moved along the shift fork axle rear enclosure and shift fork axle protheca, and then drives the shift fork mobile, and jackshaft drive pinion is in shift fork
Jackshaft described in effect lower edge slides axially, jackshaft drive pinion the different location of jackshaft can realize and differential mechanism from
Moving gear engagement, while being engaged with differential mechanism driven gear, rear axle driven gear, it engages, realizes different with rear axle driven gear
Position power transmission is respectively completed the operating mode of differential 4 wheel driven, differential locking 4 wheel driven and independent rear-guard.
Further technical solution is that the pull-fork assembly includes shift locking module, and the shift locking module is used for
The shift fork axle is limited to the predetermined position of the shift fork axle rear enclosure and shift fork axle protheca.In this way, guaranteeing that shift fork axle can be accurate
Stop at drive range and self-locking, realize shift fork and the fixed position of jackshaft drive pinion stopping and self-locking, this place
The fixed position of the jackshaft drive pinion stated is to guarantee that it is in when jackshaft drive pinion is engaged with differential mechanism driven gear
Between position on axis, while its position on jackshaft when being engaged with differential mechanism driven gear, rear axle driven gear, Yi Jiyu
Its position on jackshaft when rear axle driven gear engages.
Further technical solution is, the shift locking module include from lock tube, and setting described from lock tube
Spring and self-locking steel ball, described from the open at one end of lock tube, the open end from lock tube is fixed with the shift fork axle protheca
It connects and is connected with the shift fork axle protheca, be equipped with the multiple and described self-locking steel ball by preset space length in the shift fork axle and match
The self-locking grooves of conjunction, the spring is by the self-locking steel ball compressing in the shift fork axle.When self-locking steel ball just falls into self-locking grooves
When, position and generate it is self-locking, when shift, when extraneous shift active force passes through self-locking grooves and the effect in the radial direction of self-locking steel ball
When power acts on the self-lock force of self-locking steel ball greater than spring, shift fork axle axial movement drives self-locking steel ball mobile to spring, spring
It is compressed, when shift fork axle continues axial movement, amount of spring compression release pushes self-locking steel ball to fall into next self-locking grooves, realization is changed
Gear.The entire shift process of the utility model, frictional resistance is small, and shift-feel is good.
Further technical solution is, described that caging bolt is equipped with from lock tube, and the spring is arranged in the limit spiral shell
On bolt.
Further technical solution is that the input shaft assembly further includes input shaft snap ring, input shaft end cap, input shaft end
Bonnet bolt, bearing of input shaft and input Simmer ring, the input shaft gear is mounted on input shaft by spline, and passes through institute
Input shaft snap ring and the positioning of axis rank are stated, the both ends of the input shaft are equipped with bearing of input shaft, and the bearing of input shaft is fixedly connected
It is covered in input shaft end, the input shaft end cap is fixedly connected by input shaft end bonnet bolt with the cabinet, at least described defeated
Enter to be equipped with input Simmer ring in the input shaft end cap on the input terminal of axis.
Further technical solution is that the intermediate shaft assembly further includes jackshaft bolt of cover, intermediate hubcap, centre
Axis driving gear jackshaft snap ring and midship shaft bearing, the jackshaft drive pinion and counter shaft driven gear pass through flower respectively
Key is arranged on the jackshaft, and the counter shaft driven gear is positioned by the jackshaft snap ring and axis rank, the centre
The both ends of axis are equipped with midship shaft bearing, and the midship shaft bearing is arranged on the intermediate hubcap, and the intermediate hubcap is logical
Jackshaft bolt of cover is crossed to be fixedly connected on the cabinet.
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 corner connection by needle bearing and preceding axis connection, the other end
Contact bearing is fixedly connected with the rear hubcap, and the rear hubcap is fixedly connected on the cabinet by rear axle bolt of cover
On.
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 includes preceding Simmer ring, front axle bolt of cover, preceding hubcap and front axle angular contact bearing, before described
Axis one end is connected with the rear axle, and the other end is fixedly connected by front axle angular contact bearing with the preceding hubcap, the front axle
End cap is fixedly connected on the cabinet by front axle bolt of cover.
Further technical solution is that the box assembly further includes case lid, box body bolt, oil discharge screw, shift fork shaft-cup
Plate and cover plate bolt, the oil discharge screw are arranged on the cabinet, and the case lid and shift fork axle cover board pass through the case respectively
Body bolt and cover plate bolt are fixed on the cabinet.
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 differential four-wheel-drive transfer case involved in a kind of embodiment of the utility model；
Fig. 2 is sectional view of the differential four-wheel-drive transfer case involved in Fig. 1 along the face H-H；
Fig. 3 is sectional view of the differential four-wheel-drive transfer case involved in Fig. 1 along the face J-J；
Fig. 4 is the partially schematic of input shaft assembly and intermediate shaft assembly involved in a kind of embodiment of the utility model
Figure；
Fig. 5 is differential shaft assembly partial schematic diagram involved in a kind of embodiment of the utility model；
Fig. 6 is pull-fork assembly partial schematic diagram involved in a kind of embodiment of the utility model；
Fig. 7 is the signal of differential four-wheel-drive transfer case differential 4 wheel driven state involved in a kind of embodiment of the utility model
Figure；
Fig. 8 is showing for differential four-wheel-drive transfer case differential locking 4 wheel driven state involved in a kind of embodiment of the utility model
It is intended to；
Fig. 9 is the signal of the independent rear-guard state of differential four-wheel-drive transfer case involved in a kind of embodiment of the utility model
Figure.
In figure:
A box assembly B inputs shaft assembly C intermediate shaft assembly D differential shaft assembly
E pull-fork assembly A1 case lid A2 box body bolt A3 cabinet
A4 oil discharge screw A5 shift fork axle cover board A6 cover plate bolt B1 input shaft gear
B2 input shaft snap ring B3 input shaft B4 input shaft end cap B5 input shaft end bonnet bolt
B6 bearing of input shaft B7 inputs Simmer ring C1 jackshaft C2 jackshaft bolt of cover
Hubcap C4 jackshaft drive pinion C5 jackshaft snap ring C6 counter shaft driven gear among C3
Shaft assembly D3 differential assembly before C7 midship shaft bearing D1 rear axle assemblies D2
Simmer ring D14 rear axle after D11 rear axle driven gear D12 rear axle bolt of cover D13
Hubcap D18 rear axle differential gear after D15 rear axle snap ring D16 rear axle angular contact bearing D17
Hubcap before Simmer ring D23 front axle bolt of cover D24 before D21 front axle D22
D25 front axle angular contact bearing D26 needle bearing D27 front axle differential gear D31 differential mechanism driven gear
D32 planetary gear shaft D33 planet wheel carrier D34 planetary gear thrust axle sleeve D35 planetary gear
D36 planet wheel carrier axle sleeve D37 driven gear bolt D38 planetary gear axle sleeve D39 thrust axle sleeve
E1 shift fork axle rear enclosure E2 shift fork axle E3 spring E4 is from lock tube
The self-locking steel ball E7 self-locking grooves E8 shift fork axle front side bolt of E5 caging bolt E6
E9 shift fork axle protheca E10 shift fork head arm seat E11 shift fork head arm E12 shift fork
E13 gear shifting pulling head
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.1~9, a kind of differential four-wheel-drive transfer case, including box assembly A, input
Shaft assembly B, intermediate shaft assembly C, differential shaft assembly D and pull-fork assembly E, the box assembly A includes at least cabinet A3, described defeated
Enter shaft assembly B, intermediate shaft assembly C, differential shaft assembly D and pull-fork assembly E to be fixed on the cabinet A3, the input shaft group
The input shaft gear B1 that part B includes at least input shaft B3 and is arranged on input shaft B3, the intermediate shaft assembly C are at least wrapped
The jackshaft drive pinion C4 and counter shaft driven gear C6 for including jackshaft C1 and being arranged on jackshaft C1, the centre
Axis driven gear C6 is engaged with the input shaft gear B1, and the pull-fork assembly E includes at least shift fork E12, the shift fork E12
It is connected with the jackshaft drive pinion C4, the shift fork E12 can drive the jackshaft drive pinion C4 can be along the centre
Axis C1's slides axially；The differential shaft assembly D includes rear axle assemblies D1, preceding shaft assembly D2 and differential assembly D3, the rear axle
Component D1 includes at least rear axle D14, rear axle driven gear D11 and rear axle differential gear D18；The preceding shaft assembly D2 is included at least
Front axle D21 and front axle differential gear D27；The differential assembly D3 includes at least differential mechanism driven gear D31, planetary gear shaft
D32, planet wheel carrier D33, planetary gear thrust axle sleeve D34, planetary gear D35, planet wheel carrier axle sleeve D36, planet
Gear bush D38 and thrust axle sleeve D39；The front axle D21 is connected with rear axle D14 by needle bearing D26, the differential mechanism from
Moving gear D31 is fixed on the planet wheel carrier D33, and the planet wheel carrier D33 passes through planet wheel carrier axle sleeve
D36 is mounted on the rear axle D14 and can rotate in rear axle D14, the rear axle differential gear D18 and rear axle driven gear D11
It is arranged on the rear axle D14, the rear axle driven gear D11 is located at the outside of the rear axle differential gear D18, before described
Axis differential gear D27 is arranged on the front axle D21, the planet wheel carrier D33 and rear axle differential gear D18, preceding
Be respectively equipped with thrust axle sleeve D39 between axis differential gear D27, the thrust axle sleeve D39 be respectively sleeved at the front axle D21 and
On rear axle D14, the planet wheel carrier D33, rear axle differential gear D18, front axle differential gear D27 and the thrust axle sleeve
D39 is in contact；The planet wheel carrier D33 is equipped with multiple planetary gear shaft D32, and the planetary gear D35 passes through described
Planetary gear axle sleeve D38 is arranged on the planetary gear shaft D32, the planet wheel carrier D33 and the planetary gear
Planetary gear thrust axle sleeve D34 is equipped between D35, the planetary gear thrust axle sleeve D34 is set in the planetary gear shaft D32
On, the planet wheel carrier D33, planetary gear D35 are in contact with the planetary gear thrust axle sleeve D34；The planet tooth
It is engaged respectively with front axle differential gear D27 and rear axle differential gear D18 and forms differential transmission systems in the two sides of wheel D35；It is described
Jackshaft drive pinion C4 can be engaged with differential mechanism driven gear D31 and/or rear axle driven gear D11.
It is preferred that planetary gear shaft D32 and planetary gear D35 circumferentially arrange that quantity is more than or equal to 2, it is less than or equal to 4.
During concrete application, external impetus is transferred to input shaft B3, is transferred to input shaft gear B1 by input shaft B3,
It is then passed to counter shaft driven gear C6, then jackshaft drive pinion C4, jackshaft driving tooth are transferred to by jackshaft C1
Wheel C4 can be engaged with differential mechanism driven gear D31 and/or rear axle driven gear D11 realizes different location power transmission.Such as Fig. 7,
When shift fork axle E2 is at the leftmost side, jackshaft drive pinion C4 is only engaged with differential mechanism driven gear D31, and power passes through planet tooth
Axle stand D33 is transferred to planetary gear shaft D32, then is transferred to planetary gear D35, and front axle D21 is transferred to after differential with after
Axis D14 realizes differential 4 wheel driven；Such as Fig. 8, when shift fork axle E2 is located at intermediate predetermined position, jackshaft drive pinion C4 is simultaneously
It is engaged with differential mechanism driven gear D31 and rear axle driven gear D11, since jackshaft drive pinion C4 is driven with differential mechanism simultaneously
Gear D 31 and rear axle driven gear D11 engagement, so that planet wheel carrier D33 is identical as rear drive shaft revolving speed, antero posterior axis at this time
D14 indifferential realizes differential locking 4 wheel driven；Such as Fig. 9, when shift fork axle E2 is at the rightmost side, jackshaft drive pinion C4 and rear axle
Driven gear D11 is engaged, only rear axle D14 output power, and planet wheel carrier D33 is free end at this time, free to rotate, no
The external output power of energy, realizes independent rear-guard.
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, meets the requirement of different road conditions.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 1 and 6, the pull-fork assembly E is also wrapped
Shift fork axle rear enclosure E1, shift fork axle E2, shift fork axle protheca E9, gear shifting pulling head E13, shift fork head arm E11 and shift fork head arm seat E10 are included,
The shift fork axle rear enclosure E1 is threadedly coupled with the cabinet A3, and the shift fork axle protheca E9 is fixed by shift fork axle front side bolt E8
On cabinet A3, the both ends of the shift fork axle E2 are respectively sleeved in the shift fork axle rear enclosure E1 and shift fork axle protheca E9, institute
State shift fork head arm seat E10 and the shift fork E12 be fixedly connected on the shift fork axle E2, the shift fork head arm E11 with described group
Plug arm seat E10 is connected, and the gear shifting pulling head E13 is mounted on cabinet A3 and connect with the shift fork head arm E11, stirs institute
State the axial movement that gear shifting pulling head E13 can drive the shift fork axle E2 along the shift fork axle rear enclosure E1 and shift fork axle protheca E9.Such as
This stirs shift fork head arm E11 when stirring gear shifting pulling head E13, drive shift fork axle E2 along the shift fork axle rear enclosure E1 and shift fork
Axis protheca E9 is mobile, and then drives the shift fork E12 mobile, and jackshaft drive pinion C4 is acted in described in lower edge in shift fork E12
Between axis C1 slide axially, jackshaft drive pinion C4 can realize and differential mechanism driven gear in the different location of jackshaft C1
D31 engagement, while being engaged with differential mechanism driven gear D31, rear axle driven gear D11, it is engaged with rear axle driven gear D11, it is real
Existing different location power transmission, is respectively completed the operating mode of differential 4 wheel driven, differential locking 4 wheel driven and independent rear-guard.
On the basis of above-described embodiment, in another embodiment of the utility model, if Fig. 6, the pull-fork assembly E include changing
Locking module is kept off, the shift locking module is for before being limited to the shift fork axle rear enclosure E1 and shift fork axle for the shift fork axle E2
Cover the predetermined position of E9.In this way, guarantee that shift fork axle E2 can accurately stop at drive range and self-locking, realize shift fork E12 and
The stopping of the fixed position jackshaft drive pinion C4 and self-locking, the fixed position jackshaft drive pinion C4 described herein as guarantor
Its position on jackshaft C1 when card jackshaft drive pinion C4 is engaged with differential mechanism driven gear D31, while and differential mechanism
Driven gear D31, rear axle driven gear D11 engage when its position on jackshaft C1, and with rear axle driven gear D11
Its position on jackshaft C1 when engagement.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 6, the shift locking module includes
From lock tube E4, and the spring E3 from lock tube E4 and self-locking steel ball E6 is set, it is described from the open at one end of lock tube E4,
The open end from lock tube E4 is fixedly connected with the shift fork axle protheca E9 and is connected with the shift fork axle protheca E9, described
Being equipped with multiple self-locking grooves E7, the spring E3 matched with the self-locking steel ball E6 by preset space length on shift fork axle E2 will be described
Self-locking steel ball E6 compressing is on the shift fork axle E2.When self-locking steel ball E6 just falls into self-locking grooves E7, position and generate it is self-locking,
When shift, when extraneous shift active force is made by self-locking grooves E7 and self-locking steel ball E6 active force in the radial direction greater than spring E3
When used in the self-lock force of self-locking steel ball E6, shift fork axle E2 axial movement drives self-locking steel ball E6 mobile to spring E3, spring E3 quilt
Compression, when shift fork axle E2 continues axial movement, the release of spring E3 decrement pushes self-locking steel ball E6 to fall into next self-locking grooves E7,
Realize shift.The entire shift process of the utility model, frictional resistance is small, and shift-feel is good.It is preferred that by pre- on the shift fork axle E2
Fixed spacing is equipped with 3 self-locking grooves E7 matched with the self-locking steel ball E6, with differential 4 wheel driven, differential locking 4 wheel driven, it is independent after
Three kinds of gears are driven to match.
It is described that limit is equipped with from lock tube E4 such as Fig. 6 in another embodiment of the utility model on the basis of above-described embodiment
Position bolt E5, the spring E3 are arranged on the caging bolt E5.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 1, the input shaft assembly B further include
Input shaft snap ring B2, input shaft end cap B4, input shaft end bonnet bolt B5, bearing of input shaft B6 and input Simmer ring B7, it is described
Input shaft gear B1 is mounted on input shaft B3 by spline, and is positioned by the input shaft snap ring B2 and axis rank, described defeated
The both ends for entering axis B3 are equipped with bearing of input shaft B6, and the bearing of input shaft B6 is fixedly connected on input shaft end cap B4, described defeated
Enter hubcap B4 and be fixedly connected by input shaft end bonnet bolt B5 with the cabinet A3, on the input terminal of at least described input shaft B3
Input shaft end cap B4 in be equipped with input Simmer ring B7.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 4, the intermediate shaft assembly C further include
Jackshaft bolt of cover C2, intermediate hubcap C3, jackshaft drive pinion C4 jackshaft snap ring C5 and midship shaft bearing C7, it is described
Jackshaft drive pinion C4 and counter shaft driven gear C6 is arranged on the jackshaft C1 by spline respectively, the jackshaft
Driven gear C6 is positioned by the jackshaft snap ring C5 and axis rank, and the both ends of the jackshaft C1 are equipped with midship shaft bearing C7,
The midship shaft bearing C7 is arranged on the intermediate hubcap C3, and the intermediate hubcap C3 passes through jackshaft bolt of cover
C2 is fixedly connected on the cabinet A3.
On the basis of above-described embodiment, in another embodiment of the utility model, as Fig. 5, 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 connects by needle bearing D26 with front axle D21, the other end pass through rear axle angular contact bearing D16 and
Hubcap D17 is fixedly connected after described, and the rear hubcap D17 is fixedly connected on the cabinet by rear axle bolt of cover D12
On A3.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 5, the differential mechanism driven gear D31
It is fixed on planet wheel carrier D33 by driven gear bolt D37, the preceding shaft assembly D2 further includes preceding Simmer ring D22,
Front axle bolt of cover D23, preceding hubcap D24 and front axle angular contact bearing D25, the one end the front axle D21 and the rear axle D14 phase
Even, the other end is fixedly connected by front axle angular contact bearing D25 with the preceding hubcap D24, before the preceding hubcap D24 passes through
Shaft end bonnet bolt D23 is fixedly connected on the cabinet A3.
On the basis of above-described embodiment, in another embodiment of the utility model, such as Fig. 1~3, the box assembly A is also wrapped
Case lid A1, box body bolt A2, oil discharge screw A4, shift fork axle cover board A5 and cover plate bolt A6, the oil discharge screw A4 setting is included to exist
On the cabinet A3, the case lid A1 and shift fork axle cover board A5 are fixed by the box body bolt A2 and cover plate bolt A6 respectively
On the cabinet A3.
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 four-wheel-drive transfer case, which is characterized in that including box assembly, input shaft assembly, intermediate shaft assembly, differential shaft
Component and pull-fork assembly, the box assembly include at least cabinet, the input shaft assembly, intermediate shaft assembly, differential shaft assembly
It is fixed on the cabinet with pull-fork assembly, the input shaft assembly includes at least input shaft and is arranged in defeated on input shaft
Enter shaft gear, the intermediate shaft assembly includes at least jackshaft and the jackshaft drive pinion being arranged on jackshaft and centre
Axis driven gear, the counter shaft driven gear are engaged with the input shaft gear, and the pull-fork assembly includes at least shift fork, institute
It states shift fork to be connected with the jackshaft drive pinion, the shift fork can drive the jackshaft drive pinion can be along the jackshaft
Slide axially；The 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 gear and rear axle differential gear；The preceding shaft assembly includes at least front axle and front axle differential gear；The difference
Fast component includes at least differential mechanism driven gear, planetary gear shaft, planet wheel carrier, planetary gear thrust axle sleeve, planet tooth
Wheel, planet wheel carrier axle sleeve, planetary gear axle sleeve and thrust axle sleeve；The front axle is connected with rear axle by needle bearing, institute
It states differential mechanism driven gear to be fixed on the planet wheel carrier, the planet wheel carrier passes through planet wheel carrier axle sleeve
It is mounted on the rear axle and can be rotated along rear axle, the rear axle differential gear and rear axle driven gear are arranged in the rear axle
On, the rear axle driven gear is located at the outside of the rear axle differential gear, and the front axle differential gear is arranged in the front axle
On, thrust axle sleeve is respectively equipped between the planet wheel carrier and the rear axle differential gear, front axle differential gear, it is described to push away
Power axle sleeve is respectively sleeved on the front axle and rear axle, the planet wheel carrier, rear axle differential gear, front axle differential gear with
The thrust axle sleeve is in contact；The planet wheel carrier is equipped with multiple planetary gear shafts, and the planetary gear shaft is described in
The circumferential direction of differential mechanism driven gear is uniformly arranged and passes through differential mechanism driven gear and limits, and the planetary gear passes through the planet
Gear shaft is set in the planetary gear shaft, and planetary gear is equipped between the planet wheel carrier and the planetary gear
Thrust axle sleeve, the planetary gear thrust axle sleeve are set in the planetary gear shaft, the planet wheel carrier, planetary gear
It is in contact with the planetary gear thrust axle sleeve；The planetary gear two sides respectively with front axle differential gear and rear axle differential tooth
Wheel engages and forms differential transmission systems；The jackshaft drive pinion can be with differential mechanism driven gear and/or rear axle driven tooth
Wheel engagement.
2. differential four-wheel-drive transfer case according to claim 1, which is characterized in that after the pull-fork assembly further includes shift fork axle
Set, shift fork axle, shift fork axle protheca, gear shifting pulling head, shift fork head arm and shift fork head arm seat, the shift fork axle rear enclosure and the cabinet spiral shell
Line connection, the shift fork axle protheca are fixed on cabinet by shift fork axle front side bolt, and the both ends of the shift fork axle cover respectively
It is located in the shift fork axle rear enclosure and shift fork axle protheca, the shift fork head arm seat and the shift fork are fixedly connected on the shift fork axle
On, the shift fork head arm is connected with the shift fork head arm seat, the gear shifting pulling head be mounted on cabinet and with the shift fork head arm
Connection, stirs the axial movement that the gear shifting pulling head can drive the shift fork axle along the shift fork axle rear enclosure and shift fork axle protheca.
3. differential four-wheel-drive transfer case according to claim 2, which is characterized in that the pull-fork assembly includes shift locking mould
Block, the shift locking module are used to for the shift fork axle being limited to the pre-determined bit of the shift fork axle rear enclosure and shift fork axle protheca
It sets.
4. differential four-wheel-drive transfer case according to claim 3, which is characterized in that the shift locking module includes self-locking
Set, and the spring from lock tube and self-locking steel ball are set, it is described from the open at one end of lock tube, the opening from lock tube
Mouth end is fixedly connected with the shift fork axle protheca and is connected with the shift fork axle protheca, sets in the shift fork axle by preset space length
There are multiple self-locking grooves matched with the self-locking steel ball, the spring is by the self-locking steel ball compressing in the shift fork axle.
5. differential four-wheel-drive transfer case according to claim 4, which is characterized in that it is described that caging bolt is equipped with from lock tube,
The spring is arranged on the caging bolt.
6. differential four-wheel-drive transfer case described in any one according to claim 1~5, which is characterized in that the input shaft assembly
It further include input shaft snap ring, input shaft end cap, input shaft end bonnet bolt, bearing of input shaft and input Simmer ring, the input
Shaft gear is mounted on input shaft by spline, and is positioned by the input shaft snap ring and axis rank, the both ends of the input shaft
Equipped with bearing of input shaft, the bearing of input shaft is fixedly connected on input shaft end and covers, and the input shaft end cap passes through input shaft
Bolt of cover is fixedly connected with the cabinet, and it is close that input shaft is equipped in the input shaft end cap on the input terminal of at least described input shaft
Seal.
7. differential four-wheel-drive transfer case according to claim 6, which is characterized in that the intermediate shaft assembly further includes jackshaft
Bolt of cover, intermediate hubcap, jackshaft drive pinion jackshaft snap ring and midship shaft bearing, the jackshaft drive pinion and
Counter shaft driven gear is arranged on the jackshaft by spline respectively, and the counter shaft driven gear passes through the jackshaft
Snap ring and the positioning of axis rank, the both ends of the jackshaft are equipped with midship shaft bearing, and the midship shaft bearing is arranged in the jackshaft
On end cap, the intermediate hubcap is fixedly connected on the cabinet by jackshaft bolt of cover.
8. differential four-wheel-drive transfer case according to claim 6, 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 connected by needle bearing and front axle
It connects, the other end is fixedly connected by rear axle angular contact bearing with the rear hubcap, and the rear hubcap passes through rear hubcap spiral shell
Bolt is fixedly connected on the cabinet.
9. differential four-wheel-drive transfer case according to claim 8, 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 Simmer ring, front axle bolt of cover, preceding hubcap
With front axle angular contact bearing, described front axle one end is connected with the rear axle, the other end by front axle angular contact bearing and it is described before
Hubcap is fixedly connected, and the preceding hubcap is fixedly connected on the cabinet by front axle bolt of cover.
10. differential four-wheel-drive transfer case according to claim 9, which is characterized in that the box assembly further includes case lid, case
Body bolt, oil discharge screw, shift fork axle cover board and cover plate bolt, the oil discharge screw are arranged on the cabinet, the case lid and
Shift fork axle cover board is fixed on the cabinet by the box body bolt and cover plate bolt respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754906.6U CN208749982U (en) | 2018-05-18 | 2018-05-18 | A kind of differential four-wheel-drive transfer case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754906.6U CN208749982U (en) | 2018-05-18 | 2018-05-18 | A kind of differential four-wheel-drive transfer case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749982U true CN208749982U (en) | 2019-04-16 |
Family
ID=66053352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820754906.6U Withdrawn - After Issue CN208749982U (en) | 2018-05-18 | 2018-05-18 | A kind of differential four-wheel-drive transfer case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443494A (en) * | 2018-05-18 | 2018-08-24 | 湖南农业大学 | A kind of differential four-wheel-drive transfer case |
-
2018
- 2018-05-18 CN CN201820754906.6U patent/CN208749982U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443494A (en) * | 2018-05-18 | 2018-08-24 | 湖南农业大学 | A kind of differential four-wheel-drive transfer case |
| CN108443494B (en) * | 2018-05-18 | 2024-04-05 | 湖南农业大学 | Differential four-wheel drive transfer case |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11738629B2 (en) | Vehicle two-power-source dual driving assembly | |
| CN103448539B (en) | There is the electric actuator of the axle difies such as cylinder external meshing tooth | |
| CN102189929B (en) | Intermediate axle integrated type power divider with 6*6 transfer torsion ratio for automobile | |
| US20160312887A1 (en) | Gear shift mechanism | |
| CN106114202A (en) | Two grades of AMT rear axle assys of electric automobile | |
| CN208602320U (en) | A kind of tractor transmission system and 4 wheel driven type tractor | |
| CN208749982U (en) | A kind of differential four-wheel-drive transfer case | |
| CN207864540U (en) | It is a kind of with differential mechanism more power multi gears coupling and transmission device | |
| CN201325329Y (en) | Double-rear axle business car chassis time-sharing driving device | |
| CN107128175A (en) | A kind of point is turned round than the big load transfer gear less than 2 | |
| CN105626795A (en) | Two-gear electromobile power assembly | |
| US8712651B2 (en) | Control strategies for a multi-mode drive system | |
| CN208602319U (en) | A kind of tractor monoblock type transmission system and radial type 4 wheel driven type tractor | |
| CN104088981A (en) | Planetary-gear-type equal-ratio-output inter-axle slip-limiting differential mechanism for vehicle | |
| CN208474480U (en) | A kind of four-wheel-drive transfer case of differential and differential locking | |
| CN108443494A (en) | A kind of differential four-wheel-drive transfer case | |
| CN108443495A (en) | A kind of four-wheel-drive transfer case of differential and differential locking | |
| CN201841952U (en) | Automobile transfer case with double cone synchronizer | |
| CN208474432U (en) | A kind of differential 4 wheel driven speed changer | |
| CN205503882U (en) | Two keep off electric automobile power assembly | |
| CN202016397U (en) | Energy-saving device for serial driving axle of heavy-duty automobile | |
| CN205503970U (en) | Disjunctor formula locking transfer case | |
| JPS6323047A (en) | Integral type multifunctional differential gear | |
| CN104648144A (en) | Fuel saving type four-wheel drive of SUV (Sport Utility Vehicle) | |
| CN208749930U (en) | A kind of multi-functional four-wheel-drive transfer case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190416 Effective date of abandoning: 20240405 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190416 Effective date of abandoning: 20240405 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |