CN108468775A

CN108468775A - A kind of articulated vehicle differential speed type 4 wheel driven speed changer

Info

Publication number: CN108468775A
Application number: CN201810482742.0A
Authority: CN
Inventors: 肖名涛; 孙松林; 熊力; 陈斌; 王登榆; 陈盛
Original assignee: Hunan Agricultural University
Current assignee: Hunan Agricultural University
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2018-08-31
Anticipated expiration: 2038-05-18
Also published as: CN108468775B

Abstract

The present invention relates to a kind of differential speed type 4 wheel driven speed changers, including box assembly, secondary variable speed assembly, shift assembly, main variable speed assembly, shaft space difference speed component and preceding drive component, shift assembly includes secondary gear shift component, main gear shift component and 4 wheel driven shift assembly.It is combined by different gear drives, can be achieved independent rear-guard, differential 4 wheel driven, differential locking 4 wheel driven, independent forerunner function, structure of the invention is compact, the haulage vehicle that the installing present invention can be achieved is being lightly loaded good road surface rear wheel drive when driving, front-wheel drive is used when being lightly loaded non-rigid road traveling, in fully loaded good road surface differential 4 wheel driven when driving, when being fully loaded with non-rigid road surface using differential locking 4 wheel driven, various modes driving can be achieved, obtain good driving capability and reduce transmission loss.

Description

A kind of articulated vehicle differential speed type 4 wheel driven speed changer

Technical field

The invention belongs to transmission technology fields, and in particular to a kind of articulated vehicle differential speed type 4 wheel driven speed changer.

Background technology

On articulated vehicle, especially in frame-steered tractor, since tractor is usually in field, loose non-rigid Traveling or operation on road surface and hard surfacing.Tractor, since the soil texture in field is soft, is held in field traveling or operation Loading capability 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 poor Fast locking 4 wheel driven.But on hard surfacing when driving, if using by shaft space difference speed locking, due to the distance of front and rear wheel traveling May be unequal, cause tire wear serious, easily using differential 4 wheel driven or independent forerunner or rear-guard.Tractor is good in order to obtain Driveability and low speed grade climbing performance, it usually needs setting low speed jerking motion gear.Therefore, in order to obtain good driving capability and Transmission loss is reduced, good road surface rear wheel drive when driving usually is being lightly loaded for frame-steered tractor, is being lightly loaded non-rigid road surface Front-wheel drive is used when driving, needs differential 4 wheel driven when driving in fully loaded good road surface, needs difference when being fully loaded with non-rigid road surface Fast locking 4 wheel driven.

It is safe and reliable, compact-sized in conclusion it is urgent to provide a kind of performance stabilization, can get good driveability and The articulated vehicle differential speed type 4 wheel driven speed changer of low speed grade climbing performance.

Invention content

It is safe and reliable, compact-sized the object of the present invention is to provide a kind of performance stabilization, can get good driveability and The articulated vehicle differential speed type 4 wheel driven speed changer of low speed grade climbing performance.

Above-mentioned purpose is to be achieved through the following technical solutions：A kind of articulated vehicle differential speed type 4 wheel driven speed changer, including case Body component, secondary variable speed assembly, shift assembly, main variable speed assembly, shaft space difference speed component and preceding drive component, the box assembly is extremely Include babinet less, the pair variable speed assembly, shift assembly, main variable speed assembly, shaft space difference speed component and preceding drive component are fixed on On the babinet, the shift assembly includes secondary gear shift component, main gear shift component and 4 wheel driven shift assembly, the pair Variable speed assembly includes at least secondary speed change output shaft gear, secondary speed change output shaft, input shaft duplicate gear and input shaft, the secondary change Fast output shaft gear is slidably arranged on the secondary speed change output shaft, and the input shaft duplicate gear is fixed at the input On axis, the pair gear shift component includes at least secondary gear shift fork, the pair gear shift fork and the secondary speed change output shaft tooth Wheel is connected, and the pair gear shift fork can drive secondary speed change output shaft gear the sliding axially simultaneously along the secondary speed change output shaft Realize the engagement of secondary speed change output gear gear different from input shaft duplicate gear, and then the power for forming different proportion passes It is dynamic；The main variable speed assembly includes reverse gear shaft assembly, a shaft assembly and two shaft assemblies, and the shaft assembly that reverses gear, which includes at least, to reverse gear Axis and the reverse gear being arranged on the reverse gear shaft, a shaft assembly include at least an axis and are fixed at an axis On a gear driving gear, the driving gear that reverses gear, two gear driving gear and three gear driving gears, an axis and the secondary speed change Output shaft is connected using internal spline；Two shaft assembly includes at least two axis, two axis driven gears, jackshaft, 4 wheel driven driving tooth Wheel, one reverse gear combined cover and two or three gear combined covers, two axis by jackshaft needle bearing empty set in jackshaft, in described Countershaft is equipped with the driven gear that reverses gear, a gear driven gear, two gear driven gears and three gear driven tooths by jackshaft needle bearing Wheel, the two axis driven gear are fixedly connected by spline with two axis, and the 4 wheel driven driving gear is connected by spline slide It is connected on the jackshaft；The one gear driving gear, two gear driving gear, three gear driving gears are driven with a gear respectively Gear, two gear driven gears and three gear driven gear engagements, driving gear and the reverse gear, the driven tooth of reversing gear of reversing gear Wheel engagement；The jackshaft by spline equipped with one reverse gear splined hub and two or three gear splined hubs, described one reverse gear splined hub setting It is reversing gear between driven gear and a gear driven gear, two or the three gear splined hub setting is driven in two gear driven gears and three gears Between gear, described one reverse gear combined cover and two or three gear combined covers be respectively sleeved at described one reverse gear splined hub and two or three gear splines On hub, the main gear shift component includes at least a back fork and two or three gear shift forks, and a back 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 one gear driven tooth The engagement of wheel, two or the three gear shift fork can drive two or three gear combined covers to be moved along two or the three gear splined hub and realize two or three gear knots Trap keeps off engaging for driven gears with two gear driven gears or three；The shaft space difference speed component includes preceding shaft assembly, rear axle assemblies With 4 wheel driven differential assembly, the rear axle assemblies include at least rear axle, rear axle gear and rear axle differential gear；The preceding shaft assembly is extremely Include front axle, front axle gear, front axle differential gear less；The 4 wheel driven differential assembly includes at least differential mechanism driven gear, planet Gear shaft, planet wheel carrier, planetary gear, planet wheel carrier axle sleeve and planetary gear axle sleeve；The front axle is logical with rear axle It crosses needle bearing to be connected, the differential mechanism driven gear is fixed on the planet wheel carrier, and the planet wheel carrier is logical Planet wheel carrier axle sleeve is crossed on the rear axle and can be rotated along rear axle, the rear axle differential gear and rear axle gear are set It sets on axis in the rear, the front axle differential gear and front axle gear are arranged on the front axle, on the planet wheel carrier Equipped with multiple planetary gear shafts, the planetary gear shaft is uniformly arranged along the circumferential direction of the differential mechanism driven gear and passes through differential Device driven gear limits, and the planetary gear is set on by the planetary gear shaft in the planetary gear shaft, the row It is engaged respectively with front axle differential gear and rear axle differential gear and forms differential transmission systems in the both sides of star gear；Two axis from Moving gear is engaged with the front axle gear, and the 4 wheel driven shift assembly includes at least the 4 wheel driven being connected with 4 wheel driven driving gear and dials Fork, the 4 wheel driven shift fork drives 4 wheel driven driving gear to be moved along the jackshaft, and can realize 4 wheel driven driving gear and front axle tooth Wheel engagement and/or the engagement of differential mechanism driven gear, or the internal messing with the two axis driven gear；Two axis is fixedly connected with Drive bevel gear, the preceding drive component include differential shaft assembly between bevel gear shaft component, wheel, right drive axle assemblies and left driving Axle assemble, the driven wheel of differential that the bevel gear shaft component includes at least bevel gear shaft and is fixed on bevel gear shaft, institute It states driven wheel of differential to engage with the drive bevel gear, power is transferred to by the bevel gear shaft component by gear member differential assembly Right drive axle assemblies and left drive axle assemblies.

During concrete application, external impetus is transferred to input shaft, and input shaft duplicate gear is transferred to by input shaft, secondary Gear shift fork drives secondary speed change output shaft gear the sliding axially along the secondary speed change output shaft, and realizes secondary speed change output The engagement of gear gear different from input shaft duplicate gear, and then form the power transmission of different proportion, secondary speed change output shaft An axis is outputted power in the form of high and low shift, an axis receives power as main transmission input shaft and drives a gear driving tooth Take turns, the driving gear that reverses gear, two gear driving gear and three gear driving gears rotation, four drive respectively engage one keep off it is driven Gear, the driven gear that reverses gear, two gear driven gears and three gear driven gears rotation, a back fork control one reverse gear combined cover shifting It is dynamic, realize to reverse gear and combined cover and reverse gear and driven gear or one keep off engaging for driven gear, jackshaft by 4 wheel driven driving gear to The output of 4 wheel driven differential assembly is reversed gear or one grade, and two or the three gear fork controls two or three are kept off combined cover and moved along two or the three gear splined hub It moves and realizes that two or three gear combined covers keep off engaging for driven gears with two gear driven gears or three, jackshaft passes through 4 wheel driven driving gear To two gear of 4 wheel driven differential assembly output or third gear.

The 4 wheel driven fork controls 4 wheel driven driving gear is moved along the jackshaft, and can realize 4 wheel driven driving gear with before Shaft gear engages and/or the engagement of differential mechanism driven gear, and the internal messing with the two axis driven gear, and then realizes different Position power transmission；For 4 wheel driven shift fork at most front side rear-guard position, the power after shift transformation is transferred to 4 wheel driven driving tooth Wheel, 4 wheel driven driving gear are engaged with rear axle gear, since the planet wheel carrier of 4 wheel driven differential assembly is inputted without driving force, planet Gear pedestal is in free state, and differential mechanism does not act, and only rear axle generates power output, realizes independent rear-guard.

For 4 wheel driven shift fork at intermediate differential locking 4 wheel driven position, the power after shift transformation is transferred to 4 wheel driven driving tooth Wheel, 4 wheel driven driving gear is engaged with rear axle gear and differential mechanism driven gear, due to the rear axle gear and row as axle shaft gear Differential mechanism driven gear constant speed on star gear pedestal, therefore differential mechanism locking exports, the rotating speed and differential of differential mechanism driven gear Device shell, rear axle gear, front axle gear constant speed realize differential locking 4 wheel driven；Power transmission line is at this time：Rear-guard：4 wheel driven master Moving gear is to rear axle gear, then to rear axle；Forerunner：4 wheel driven driving gear is to differential mechanism driven gear, until planet wheel carrier, To planetary gear shaft, until planetary gear, until front axle differential gear, until front axle, until front axle gear, until two axis driven gears, until two Axis.

For 4 wheel driven shift fork axle at intermediate differential 4 wheel driven position, the power after shift transformation is transferred to 4 wheel driven driving tooth Wheel, 4 wheel driven driving gear engages with differential mechanism driven gear, due to as axle shaft gear rear axle gear and front axle gear not by 4 wheel driven driving gear controls, and differential mechanism is in differential state, it can be achieved that shaft space difference speed 4 wheel driven；Power transmission line at this time：Rear-guard： 4 wheel driven driving gear is to differential mechanism driven gear, until planet wheel carrier, until planetary gear shaft, until planetary gear, until rear axle is poor Fast gear, until rear axle；Forerunner：4 wheel driven driving gear is to differential mechanism driven gear, until planet wheel carrier, until planetary gear shaft, To planetary gear, until front axle differential gear, until front axle, until front axle gear, until two axis driven gears, until two axis.

For 4 wheel driven shift fork axle at independent forerunner position, the power after shift transformation is transferred to 4 wheel driven driving gear, and It is combined with the internal tooth of two axis driven gears by the external tooth on 4 wheel driven driving tooth, since power is only transferred to front axle, planet at this time Gear pedestal is in free state, and differential mechanism does not act, and only front axle generates power output, power transmission line：4 wheel driven master Moving gear is to two axis driven gears, then to two axis.

During forerunner, power is exported by two axis, the slave mantle tooth of the drive bevel gear on two axis and bevel gear shaft component Wheel engagement imparts power to precursor assemblies, and power is transferred to right driving by the bevel gear shaft component by gear member differential assembly Axle assemble and left drive axle assemblies.

Inventive can be stablized, safe and reliable, compact-sized, it can be achieved that the haulage vehicle of the installing present invention is usually being lightly loaded Good road surface rear wheel drive when driving uses front-wheel drive when being lightly loaded non-rigid road traveling, fully loaded good road surface when driving Differential 4 wheel driven uses differential locking 4 wheel driven when being fully loaded with non-rigid road surface, and 4 wheel driven is used when low speed goes up a slope or creeps, in this way, Various modes driving can be achieved, and obtain good driving capability and reduce transmission loss.

Further technical solution is that the pair gear shift component further includes auxiliary variable speed fork-lever shaft, secondary gear shift seat Bolt, auxiliary transmission shift seat and secondary gear shift bar, the main gear shift component further include a back fork axis, two or three gears Shift fork axle, main transformer quick change block seat, main transformer quick change bar and main transformer quick change block seat bolt, the 4 wheel driven shift assembly further includes 4 wheel driven Shift lever, 4 wheel driven shift seat, 4 wheel driven shift seat bolt and 4 wheel driven shift fork axle, the auxiliary transmission shift seat, main transformer quick change block seat Institute is fixed on by secondary gear shift seat bolt, main transformer quick change block seat bolt and 4 wheel driven shift seat bolt respectively with 4 wheel driven shift seat It states on babinet, the pair gear shift bar, main transformer quick change bar and 4 wheel driven shift lever are separately fixed at the auxiliary transmission shift On seat, main transformer quick change block seat and 4 wheel driven shift seat, the back fork axis, two or three gear shift fork axles and the main transformer quick change bar It is connected, the auxiliary variable speed fork-lever shaft and 4 wheel driven shift fork axle are connected with the secondary gear shift bar and 4 wheel driven shift lever respectively, described Secondary gear shift fork, two or three gear shift forks, a back fork and 4 wheel driven shift fork are arranged in the auxiliary variable speed fork-lever shaft, a back fork In axis, two or three gear shift fork axles and 4 wheel driven shift fork axle.

It is preferred that the bevel gear shaft component further includes bevel gear shaft deep groove ball bearing, bevel gear shaft bolt of cover, bevel gear Shaft sleeve, bevel gear shaft, bevel gear shaft driving gear, bevel gear shaft angular contact bearing, bevel gear shaft end cap.

Further technical solution is that differential shaft assembly includes poor between differential hubcap, right axle shaft, wheel between taking turns between the wheel Differential planetary gear axis between differential planetary gear, differential support shaft, left half axle and wheel between differential shell, wheel between fast driven gear, wheel, The differential support shaft is poor between the wheel by the way that differential hubcap is fixedly connected between differential shaft angular contact bearing and the wheel between wheel Fast hubcap is fixed on by differential shaft bolt of cover between wheel on the babinet, and the right axle shaft, left half axle pass through differential between wheel Axis axis is set in the differential support shaft and empty set can be rotated in differential support shaft, differential planetary gear axis between the wheel It is fixed in the differential support shaft and the circumferential direction of differential driven gear is uniformly arranged between wheel, differential planetary gear between the wheel It is set between the wheel on differential planetary gear axis by differential planetary gear axis between wheel, differential passes through poor between wheel between the wheel Fast axis axle sleeve is set on the right axle shaft, and the planetary gear shaft is mounted on the pinion frame and passes through differential between wheel Driven gear outer ring limits, and differential driven gear is arranged by differential driven gear bolt between wheel between the wheel poor between the wheel On fast shell, the right axle shaft is equipped with right axle shaft driving gear and right axle shaft gear, and left half axle is provided on the left half axle actively Gear and left half axle gear, institute's left half axle gear, right axle shaft gear engage composition differential gearing system with differential planetary gear between wheel System, the bevel gear shaft are equipped with bevel gear shaft driving gear, differential driven gear and the bevel gear shaft driving tooth between the wheel Wheel engagement.

It is preferred that the right axle shaft and left half axle are equipped with differential shaft thrust bearing between the wheel of stationary positioned.

Further technical solution is, the right drive axle assemblies include right driving axle snap ring, right driving axle driven gear, Right driving axle, right drive axle bolt, right driving axle housing, right driving axle sealing ring, right driving axle are held, the left drive axle assemblies packet Include left driving shaft snap ring, left driving shaft driven gear, left driving shaft, left drive axle bolt, left driving axle housing, left driving shaft sealing Circle and left driving shaft are held, and the right driving axle is held by right driving axle to be connected with right driving axle housing, and the right driving axle housing passes through Right drive axle bolt is fixed with the babinet, and the left driving shaft is held by left driving shaft to be connected with left driving axle housing, the left side Driving axle housing is fixed by left drive axle bolt with the babinet, the right driving axle driven gear and left driving shaft driven gear Be respectively fixedly disposed on the right driving axle and left driving shaft, and respectively with the right axle shaft driving gear and left half axle actively Gear engages.

When front left and right drive axle rotating speed is identical：Differential planetary gear revolves round the sun around differential support shaft between wheel, and differential mechanism is left Right equispeed output.Power transmission route at this time is：Drive bevel gear is to driven wheel of differential, until bevel gear shaft, until bevel gear shaft Driving gear, until differential driven gear between wheel, until differential shell between wheel, until differential planetary gear axis between wheel, until differential planetary between wheel Gear (differential planetary gear revolves round the sun only around differential support shaft between this hour wheel) then passes through right axle shaft gear all the way, then extremely right Semiaxis driving gear, until right driving axle driven gear, until right driving axle；Another way passes through left half axle gear, until left half axle is actively Gear, until left driving shaft driven gear, until left driving shaft, differential mechanism or so equispeed output.

When front left and right drive axle differential：Differential planetary gear had both surrounded differential support shaft and had revolved round the sun between wheel, was also about between wheel Differential planetary gear axis rotation, the output of differential mechanism or so differential.Power transmission route at this time is：Drive bevel gear is extremely from mantle Gear, until bevel gear shaft, until bevel gear shaft driving gear, until differential driven gear between wheel, until differential shell between wheel, until differential between wheel Planetary gear shaft, until (differential planetary gear had both surrounded differential support shaft and revolved round the sun differential planetary gear between wheel, was also about between wheel between wheel The rotation of differential planetary gear axis), then pass through right axle shaft gear all the way, until right axle shaft driving gear, until right driving axle driven tooth Wheel, until right driving axle；Another way passes through left half axle gear, until left half axle driving gear, until left driving shaft driven gear, until left drive Moving axis, the output of differential mechanism or so differential.

Further technical solution is, the pair variable speed assembly further includes that clutch bolt, secondary variable-speed bearing, secondary speed change are defeated Go out shaft retaining ring, input Simmer ring, input shaft end cap, the input shaft passes through the secondary variable-speed bearing and the input shaft end cap It is connected, the input shaft end cap is fixed on the babinet, and input Simmer ring is equipped in the input shaft end cap, and the pair becomes Fast output shaft baffle ring is set on the secondary speed change output shaft, and the pair speed change output shaft passes through secondary variable-speed bearing and the babinet It is fixed.

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 by 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 both sides and reverse gear shaft is located on babinet.

Further technical solution is that a shaft assembly further includes an axle bearing and an axis snap ring, the axis snap ring It is set on an axis, an axis is arranged by an axle bearing on the babinet；Two shaft assembly further includes Jackshaft snap ring, midship shaft bearing, midship shaft bearing snap ring, intermediate shaft retaining ring, two shaft angle contact bearings, two hubcaps and two axis Bolt of cover, the jackshaft snap ring and jackshaft baffle ring are set on the jackshaft, and the jackshaft passes through jackshaft axis It holds and is connect with the babinet；Two axis is fixedly connected by two shaft angle contact bearings with two hubcap, two shaft end Lid is fixed on by two shaft end bonnet bolt on the babinet, and the midship shaft bearing snap ring is used to limit midship shaft bearing Position.

Further technical solution is that the preceding shaft assembly includes front axle gear, front axle thrust bearing, front axle thrust bearing Baffle ring, front axle axle sleeve and front axle, front axle gear are mounted on by spline on front axle, and front axle thrust race is mounted on thrust axis It holds between front axle gear and front axle gear is positioned, front axle is mounted on by front axle axle sleeve on rear axle；The rear axle assemblies are also Including rear hubcap, rear axle bolt of cover, rear axle angular contact bearing, rear Simmer ring and rear axle snap ring, the rear axle gear is logical Spline is crossed with rear axis connection and is limited by the rear axle snap ring and rear axle axis rank, described rear axle one end is by 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 babinet, and the rear Simmer ring setting is in the rear in hubcap.

Further technical solution is that the 4 wheel driven differential assembly further includes planetary gear thrust axle sleeve and planetary gear shaft Frame thrust axle sleeve, planet wheel carrier thrust axle sleeve are mounted between planet wheel carrier both sides and front axle and rear axle, planet tooth Thrust axle sleeve is taken turns to be mounted between planetary gear and planet wheel carrier.

Further technical solution is that the box assembly further includes case lid, ventilation bolt, box body bolt, oil discharge screw And clutch cap, the ventilation bolt are arranged on the babinet, the case lid is fixed on the case by the box body bolt On body, the clutch cap is fixedly connected with the babinet.

Description of the drawings

The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.

Fig. 1 is the outline drawing of the gearbox involved by one embodiment of the present invention；

Fig. 2 is the vertical profile figure of gearbox involved in Fig. 1；

Fig. 3 is the sectional view along the faces K-K of gearbox involved in Fig. 2；

Fig. 4 is the sectional view along the faces H-H of gearbox involved in Fig. 2；

Fig. 5 is the structural schematic diagram of the secondary variable speed assembly involved by one embodiment of the present invention；

Fig. 6 is the structural schematic diagram of the main variable speed assembly involved by one embodiment of the present invention；

Fig. 7 is the structural schematic diagram of the shaft space difference speed component involved by one embodiment of the present invention；

Fig. 8 and Fig. 9 is the structural schematic diagram of the preceding drive component involved by one embodiment of the present invention；

Cuing open when Figure 10 is the variable speed assembly and shaft space difference speed component independent rear-guard involved by one embodiment of the present invention Face structure chart；

When Figure 11 is the variable speed assembly and shaft space difference speed component differential locking 4 wheel driven involved by one embodiment of the present invention Sectional view；

Cuing open when Figure 12 is the variable speed assembly and shaft space difference speed component differential 4 wheel driven involved by one embodiment of the present invention Face figure；

Cuing open when Figure 13 is variable speed assembly and the shaft space difference speed component independent forerunner involved by one embodiment of the present invention Face figure.

In figure：

A box assembly B pair variable speed assembly C shift assemblies

Drive component before the main variable speed assembly E shaft space difference speeds component F of D

A1 case lids A2 ventilation bolt A3 box body bolts

A4 babinet A5 oil discharge screw A6 clutch caps

B11 clutch bolt B12 pair speed change output shaft gear B13 pair speed change output shafts

B14 pair speed changes export shaft retaining ring B15 pair variable-speed bearing B16 input shaft snap rings

B17 inputs Simmer ring B18 input shaft duplicate gear B19 input shaft end caps

The main gear shift components of B20 input shaft C1 pair gear shift component C2

C3 4 wheel driven shift assembly C11 pair gear shift fork C12 auxiliary variable speed fork-lever shafts

C13 pair gear shift seat bolt C14 auxiliary transmissions shift seat C15 pair gear shift bars

Mono- back fork axis C22 bis- or three of C21 keep off shift fork axle C23 main transformer quick change block seats

C24 main transformer quick change bar C25 main transformer quick change block seat bolts C26 bis- or three keeps off shift fork

Mono- back fork C31 4 wheel driven shift lever C32 4 wheel drivens of C27 shift seat

C33 4 wheel drivens shift seat bolt C34 4 wheel driven shift fork axle C35 4 wheel driven shift forks

D1 reverses gear mono- shaft assembly D3 of shaft assembly D2, bis- shaft assemblies

D11 reverse gear shaft snap ring D12 reverse gear shaft thrust bearing D13 reverse gears

15 reverse gear shaft D21 of D14 reverse gear axis runner axles bearings D, mono- axis

D22 mono- keeps off driving gear D23 and reverses gear mono- axle bearings of driving gear D24

Mono- axis snap ring D27 tri- of D25 two gear driving gears D26 keep off driving gear

Bis- axis of D31 4 wheel driven driving gear D32 jackshafts D33

D34 jackshaft snap ring D35 midship shaft bearing D36 jackshaft needle bearings

The D37 splined hub D39 mono- that reverse gear of driven gear D38 mono- that reverse gear reverse gear combined cover

D310 mono- keeps off driven gear D311 bis- and keeps off bis- or three gear combined covers of driven gear D312

D313 bis- or three keeps off splined hub D314 tri- and keeps off driven gear D315 midship shaft bearing snap rings

Bis- axis driven gears of shaft retaining ring D318 among D316 drive bevel gears D317

Bis- bis- hubcap D321 of shaft angle contact bearing D320 of D319, bis- shaft end bonnet bolts

Shaft assembly E2 rear axle assemblies E3 4 wheel driven differential assemblies before E1

E11 front axle gear E12 front axle thrust bearing E13 front axle thrust races

E14 front axle axle sleeve E15 front axle E16 front axle differential gears

Hubcap E22 rear axles bolt of cover E23 rear axle angular contact bearings after E21

Simmer ring E25 rear axles E26 rear axle gears after E24

E27 rear axle snap ring E28 rear axle differential gear E31 planet wheel carriers

E32 planetary gear shaft E33 differential mechanism driven gear E34 driven gear bolts

E35 planetary gear thrust axle sleeve E36 planetary gear E37 planet wheel carrier axle sleeves

E38 planetary gear axle sleeve E39 planet wheel carrier thrust axle sleeve F1 bevel gear shaft components

The right left drive axle assemblies of drive axle assemblies F4 of differential shaft assembly F3 between F2 wheels

F11 bevel gear shaft deep groove ball bearing F12 bevel gear shaft bolt of cover F13 bevel gear shaft sleeves

F14 bevel gear shaft driving gear F15 bevel gear shaft F16 driven wheel of differential

Differential shaft bolt of cover between F17 bevel gear shaft angular contact bearing F18 bevel gear shaft end caps F21 wheels

Differential shaft thrust bearing between differential shaft angular contact bearing F24 takes turns between differential hubcap F23 wheels between F22 wheels

Differential driven gear between F25 right axle shaft driving gear F26 right axle shafts F27 wheels

Differential planetary gear axle sleeve between differential shell F210 wheels between F28 right axle shaft gears F29 wheels

Differential planetary gear F212 left half axle gear F213 left half axle driving gears between F211 wheels

Differential shaft axle sleeve F216 left half axles between F214 differential support shafts F215 wheels

Differential driven gear bolt F31 right driving axle snap rings between differential planetary gear axis F218 wheels between F217 wheels

F32 right driving axle driven gear F33 right driving axles hold the right drive axle bolts of F34

The right driving axle housing F36 right driving axles sealing ring F37 right driving axles of F35

F41 left driving shaft snap ring F42 left driving shaft driven gear F43 left driving shafts

The left driving axle housing F46 left driving shaft sealing rings of the left drive axle bolt F45 of F44

F47 left driving shafts are held

Specific implementation mode

Present invention will now be described in detail with reference to the accompanying drawings., and the description of this part is only exemplary and explanatory, is not answered There is any restriction effect to protection scope of the present invention.In addition, description of the those skilled in the art according to this document, it can be right Feature in this document in embodiment and in different embodiments carries out the corresponding combination.

The embodiment of the present invention is as follows, referring to Fig.1~13, a kind of articulated vehicle differential speed type 4 wheel driven speed changer 31, including case Body component A, secondary variable speed assembly B, shift assembly C, main variable speed assembly D, shaft space difference speed component E and preceding drive component F, the babinet Component A includes at least babinet A4, the pair variable speed assembly B, shift assembly C, main variable speed assembly D, shaft space difference speed component E and forerunner Dynamic component F is fixed on the babinet A4, and the shift assembly C includes secondary gear shift component C1, main gear shift component C2 With 4 wheel driven shift assembly C3, the pair variable speed assembly B include at least secondary speed change output shaft gear B12, secondary speed change output shaft B13, Input shaft duplicate gear B18 and input shaft B20, the pair speed change output shaft gear B12 are slidably arranged in the secondary speed change output On axis B13, the input shaft duplicate gear B18 is fixed on the input shaft B20, and the pair gear shift component C1 is extremely Few includes that pair gear shift fork C11, the pair gear shift fork C11 are connected with the pair speed change output shaft gear B12, the pair speed change Shift fork C11 can drive the pair speed change output shaft gear B12 sliding axially and realize secondary change along the secondary speed change output shaft B13 The engagement of fast output gear and different gears on input shaft duplicate gear B18, and then form the power transmission of different proportion；It is described Main variable speed assembly D includes reverse gear shaft assembly D1, a shaft assembly D2 and two shaft assembly D3, and the shaft assembly D1 that reverses gear is including at least Gear shaft D15 and the reverse gear D13 being arranged on the reverse gear shaft D15, the shaft assembly D2 include at least an axis D21 and solid The fixed gear driving gear D22 being arranged on the axis D21, the driving gear D23 that reverses gear, the gears of two gear driving gear D25 and three Driving gear D27, the axis D21 are connect with the pair speed change output shaft B13 using internal spline；The two shaft assemblies D3 is at least It reverses gear combined cover D39 and two or three including two axis D33, two axis driven gear D318, jackshaft D32,4 wheel driven driving gear D31, one Combined cover D312, the two axis D33 are kept off by jackshaft needle bearing D36 empty sets in jackshaft D32, the jackshaft D32 By jackshaft needle bearing D36 be equipped with the driven gear D37 that reverses gear, a gear driven gear D310, two gear driven gear D311 and Three gear driven gear D314, the two axis driven gear D318 are fixedly connected by spline with the two axis D33, the 4 wheel driven master Moving gear D31 is connected to by spline slide on the jackshaft D32；The one gear driving gear D22, two gear driving gear D25, three gear driving gear D27 keep off driven gears with the gear driven gear D310, two gear driven gear D311 and three respectively D314 is engaged, and the driving gear D23 that reverses gear is engaged with the reverse gear D13, the driven gear D37 that reverses gear；The jackshaft D32 is reversed gear the gears of splined hub D38 and two or three splined hub D313 by spline equipped with one, and described one splined hub D38 settings of reversing gear are being fallen It keeps off between the gear driven gears of driven gear D37 and one D310, two or the three gear splined hub D313 settings keep off driven gear two Between the gears of D311 and three driven gear D314, described one gears of combined cover D39 and two or the three combined cover D312 that reverses gear is respectively sleeved at institute It states one to reverse gear on the gear splined hubs of splined hub D38 and two or three D313, the main gear shift component C2 includes at least a back fork The gears of C27 and two or three shift fork C26, the back fork C27 can drive the combined cover D39 that reverses gear to reverse gear splined hub along described one D38 is mobile and realizes that the combined cover D39 and driven gear D37 or one that reverses gear that reverses gear keeps off engaging for driven gear D310, and described two Three gear shift fork C26 can drive two or three gear combined cover D312 to be moved along two or the three gear splined hub D313 and realize two or three gear combined covers D312 is engaged with two gears of the driven gear D37 or three driven gear D314 that reverse gear；The shaft space difference speed component E includes preceding shaft assembly E1, rear axle assemblies E2 and 4 wheel driven differential assembly E3, the rear axle assemblies E2 include at least rear axle E25, rear axle gear E26 and rear axle Differential gear E28；The preceding shaft assembly E1 includes at least front axle E15, front axle gear E11, front axle differential gear E16；Described four It drives differential assembly E3 and includes at least differential mechanism driven gear E33, planetary gear shaft E32, planet wheel carrier E31, planetary gear E36, planet wheel carrier axle sleeve E37 and planetary gear axle sleeve E38；The front axle E15 and rear axle E25 passes through needle bearing phase Even, the differential mechanism driven gear E33 is fixed on the planet wheel carrier E31, and the planet wheel carrier E31 passes through row Star gear pedestal axle sleeve E37 is mounted on the rear axle E25 and can be rotated along rear axle E25, and the rear axle differential gear E28 is with after In the rear on axis E25, the front axle differential gear E16 and front axle gear E11 are arranged in the front axle for shaft gear E26 settings On E15, the planet wheel carrier E31 is equipped with multiple planetary gear shaft E32, and the planetary gear shaft E32 is along the differential The circumferential direction of device driven gear E33 is uniformly arranged and is limited by differential mechanism driven gear E33, and the planetary gear E36 passes through institute It states planetary gear axle sleeve E38 to be arranged on the planetary gear shaft E32, the both sides of the planetary gear E36 are poor with front axle respectively Fast gear E16 and rear axle differential gear E28 are engaged and are formed differential transmission systems 3；The two axis driven gear D318 with it is described Front axle gear E11 engagements, the 4 wheel driven shift assembly C3 include at least the 4 wheel driven shift fork C35 being connected with 4 wheel driven driving gear D31, The 4 wheel driven shift fork C35 drives 4 wheel driven driving gear D31 to be moved along the jackshaft D32, and can realize 4 wheel driven driving gear D31 It is engaged with front axle gear E11 and/or differential mechanism driven gear E33 is engaged, or the internal messing with the two axis driven gear D318； It includes poor between bevel gear shaft component F1, wheel that the two axis D33, which is fixedly connected with drive bevel gear D316, the preceding drive component F, Fast shaft assembly F2, right drive axle assemblies F3 and left drive axle assemblies F4, the bevel gear shaft component F1 include at least bevel gear shaft F15 and the driven wheel of differential F16, the driven wheel of differential F16 that are fixed on bevel gear shaft F15 and the drive bevel gear D316 is engaged, and power is transferred to right drive axle assemblies F3 and left driving by the bevel gear shaft component F1 by gear member differential assembly Axle assemble F4.

During concrete application, such as Fig. 4~13, external impetus is transferred to input shaft B20, is transferred to by input shaft B20 Input shaft duplicate gear B18, secondary gear shift fork C11 drive the pair speed change output shaft gear B12 along the secondary speed change output shaft B13's slides axially, and realizes the engagement of secondary speed change output gear and different gears on input shaft duplicate gear B18, and then shape At the power transmission of different proportion, secondary speed change output shaft B13 outputs power to an axis D21, an axis in the form of high and low shift D21 receives power as main transmission input shaft B20 and drives a gear driving gear D22, the driving gear D23 that reverses gear, two gears actively Gear D 25 and three keeps off driving gear D27 rotation, four drive respectively engage one keep off driven gear D310, reverse gear it is driven Gear D 37, two keeps off the gear driven gear D314 rotations of driven gear D311 and three, and a back fork C27 controls one are reversed gear combined cover D39 is moved, and realizes that the combined cover that reverses gear keeps off engaging for driven gear D310 with the driven gear D37 or one that reverses gear, jackshaft D32 passes through 4 wheel driven driving gear D31 reverses gear or one grade to 4 wheel driven differential assembly E3 output, and two or three gear shift fork C26 controls, two or three gear combines Set D312 is moved along two or the three gear splined hub D313 and is realized that two or three gear combined cover D312 and two reverse gear driven gear D37 or three The engagement of driven gear D314 is kept off, jackshaft D32 exports two gears or three by 4 wheel driven driving gear D31 to 4 wheel driven differential assembly E3 Shelves.

The 4 wheel driven shift fork C35 controls 4 wheel driven driving gear D31 is moved along the jackshaft D32, and can realize 4 wheel driven master Moving gear D31 is engaged with front axle gear E11 and/or differential mechanism driven gear E33 engagement, or with the two axis driven gear D318 Internal messing, and then realize different location power transmission.

As shown in Figure 10, for 4 wheel driven shift fork C35 at most front side rear-guard position, the power after shift transformation is transferred to four Driving gear D31 is driven, 4 wheel driven driving gear D31 is engaged with rear axle gear E26, due to the planetary gear shaft of 4 wheel driven differential assembly E3 Frame E31 is inputted without driving force, and planet wheel carrier E31 is in free state, and differential mechanism does not act, and only rear axle E25 is generated Power output realizes independent rear-guard.

As shown in figure 11, at intermediate differential locking 4 wheel driven position, the power after shift transformation passes 4 wheel driven shift fork C35 It is handed to 4 wheel driven driving gear D31,4 wheel driven driving gear D31 and rear axle gear E26 and differential mechanism driven gear E33 is engaged, due to As the differential mechanism driven gear E33 constant speed on the rear axle gear E26 and planet wheel carrier E31 of axle shaft gear, therefore differential mechanism Locking exports, and rotating speed and differential mechanism shell, rear axle gear E26, the front axle gear E11 constant speed of differential mechanism driven gear E33 are realized Differential locking 4 wheel driven；Power transmission line is at this time：Rear-guard：4 wheel driven driving gear D31 is to rear axle gear E26, then to rear axle E25；Forerunner：4 wheel driven driving gear D31 to differential mechanism driven gear E33, until planet wheel carrier E31, until planetary gear shaft E32, until planetary gear E36, until front axle differential gear E16, until front axle E15, until front axle gear E11, until two axis driven gears D318, until two axis D33.

As shown in figure 12, at intermediate differential 4 wheel driven position, the power after shift transformation transmits 4 wheel driven shift fork axle C34 To 4 wheel driven driving gear D31,4 wheel driven driving gear D31 is engaged with differential mechanism driven gear E33, after as axle shaft gear Shaft gear E26 and front axle gear E11 is not controlled by 4 wheel driven driving gear D31, and differential mechanism is in differential state, it can be achieved that between centers is poor Fast 4 wheel driven；Power transmission line at this time：Rear-guard：4 wheel driven driving gear D31 is to differential mechanism driven gear E33, until planetary gear shaft Frame E31, until planetary gear shaft E32, until planetary gear E36, until rear axle differential gear E28, until rear axle E25；Forerunner：4 wheel driven is actively Gear D 31 is to differential mechanism driven gear E33, until planet wheel carrier E31, until planetary gear shaft E32, until planetary gear E36, until Front axle differential gear E16, until front axle E15, until front axle gear E11, until two axis driven gear D318, until two axis D33.

As shown in figure 13, for 4 wheel driven shift fork axle C34 at independent forerunner position, the power after shift transformation is transferred to four Driving gear D31 is driven, and is combined with the internal tooth of two axis driven gear D318 by the external tooth on 4 wheel driven driving tooth, only due to power It is transferred to front axle E15, planet wheel carrier E31 is in free state at this time, and differential mechanism does not act, and only front axle E15 is generated Power output, power transmission line：4 wheel driven driving gear D31 is to two axis driven gear D318, then to two axis D33.

During forerunner, such as Fig. 8 and Fig. 9, power is exported by two axis D33, the drive bevel gear D316 on two axis D33 and cone The driven wheel of differential F16 engagements of gear shaft assembly F1 impart power to precursor assemblies, and the bevel gear shaft component F1 passes through wheel Power is transferred to right drive axle assemblies F3 and left drive axle assemblies F4 by part differential assembly.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2 and Fig. 4, the pair gear shift component C1 Further include auxiliary variable speed fork-lever shaft C12, secondary gear shift seat bolt C13, auxiliary transmission shift seat C14 and secondary gear shift bar C15, The main gear shift component C2 further includes a back fork axis C21, two or three gear shift fork axle C22, main transformer quick change block seat C23, master Gear shift bar C24 and main transformer quick change block seat bolt C25, the 4 wheel driven shift assembly C3 further include 4 wheel driven shift lever C31,4 wheel driven Shift gears seat C32,4 wheel driven shift seat bolt C33 and 4 wheel driven shift fork axle C34, the auxiliary transmission shift seat C14, main transformer quick change block seat C23 and 4 wheel driven shift seat C32 pass through secondary gear shift seat bolt C13, main transformer quick change block seat bolt C25 and 4 wheel driven shift seat respectively Bolt C33 is fixed on the babinet A4, the pair gear shift bar C15, main transformer quick change bar C24 and 4 wheel driven shift lever C31 It is separately fixed on the auxiliary transmission shift seat C14, main transformer quick change block seat C23 and 4 wheel driven shift seat C32, described one, which reverses gear, dials Fork shaft C21, two or three gear shift fork axle C22 are connected with the main transformer quick change bar C24, and the auxiliary variable speed fork-lever shaft C12 and 4 wheel driven are dialled Fork shaft C34 is connected with the pair gear shift bar C15 and 4 wheel driven shift lever C31 respectively, the pair gear shift fork C11, two or three gears Shift fork C26, a back fork C27 and 4 wheel driven shift fork C35 setting the auxiliary variable speed fork-lever shaft C12, a back fork axis C21, On two or three gear shift fork axle C22 and 4 wheel driven shift fork axle C34.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8 and Fig. 9, the bevel gear shaft component F1 is also Including bevel gear shaft deep groove ball bearing F11, bevel gear shaft bolt of cover F12, bevel gear shaft sleeve F13, bevel gear shaft F15, cone Gear shaft driving gear F14, bevel gear shaft angular contact bearing F17, bevel gear shaft end cap F18.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8 and Fig. 9, differential shaft assembly F2 between the wheel Including differential row between differential shell F29, wheel between differential driven gear F27, wheel between differential hubcap F22, right axle shaft F26, wheel between wheel Differential planetary gear axis F217 between star gear F211, differential support shaft F214, left half axle F216 and wheel, the differential support shaft F214 is by the way that differential hubcap F22 is fixedly connected between differential shaft angular contact bearing F23 and the wheel between wheel, differential shaft between the wheel End cap F22 is fixed on by differential shaft bolt of cover F21 between wheel on the babinet A4, and the right axle shaft F26, left half axle F216 are logical Differential shaft axle sleeve F215 is arranged on the differential support shaft F214 and empty set can be rotated on differential support shaft F214 between third wheel, Differential planetary gear axis F217 is fixed on the differential support shaft F214 and the differential driven gear F27 between wheel between the wheel It is circumferentially uniformly arranged, differential planetary gear F211 is arranged by differential planetary gear axle sleeve F210 between wheel in the wheel between the wheel Between on differential planetary gear axis F217, differential shell F29 is fixed simultaneously by differential planetary gear axis F217 between the wheel between the wheel It is set on the right axle shaft F26 by differential shaft axle sleeve F215 between wheel, the planetary gear shaft E32 is mounted on the planet tooth It is limited on wheel E36 framves and by the outer rings differential driven gear F27 between wheel, differential planetary gear axis between differential shell F29 wheels between wheel Differential driven gear F27 passes through differential driven gear spiral shell between wheel between being taken turns described in differential shaft axle sleeve F215 right axle shafts F26 between F217 wheels Bolt F218 is arranged between the wheel on differential shell F29, and the right axle shaft F26 is equipped with right axle shaft driving gear F25 and right axle shaft tooth F28 is taken turns, left half axle driving gear F213 and left half axle gear F212, institute's left half axle gear are provided on the left half axle F216 Differential planetary gear F211 engages composition differential transmission systems 3, the bevel gear shaft F15 between F212, right axle shaft gear F28 and wheel Equipped with bevel gear shaft driving gear F14, differential driven gear F27 is engaged with the bevel gear shaft driving gear F14 between the wheel.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 9, the right axle shaft F26 and left half axle F216 Differential shaft thrust bearing F24 between wheel equipped with stationary positioned.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8 and Fig. 9, the right drive axle assemblies F3 packets Include right driving axle snap ring F31, right driving axle driven gear F32, right driving axle F37, right drive axle bolt F34, right driving axle housing, Right driving axle sealing ring F36, right driving axle hold F33, and the left drive axle assemblies F4 includes left driving shaft snap ring F41, left driving Axis driven gear F42, left driving shaft F43, left drive axle bolt F44, left driving axle housing F45, left driving shaft sealing ring F46 and a left side Driving bearing F47, the right driving axle F37 hold F33 by right driving axle and are connected with right driving axle housing, and the right driving axle housing is logical It crosses the right drive axle bolt F34 and babinet A4 to fix, the left driving shaft F43 holds F47 and left drive axle by left driving shaft Shell F45 be connected, the left driving axle housing F45 is fixed by left drive axle bolt F44 and the babinet A4, the right driving axle from Moving gear F32 and left driving shaft driven gear F42 are respectively fixedly disposed on the right driving axle F37 and left driving shaft F43, and It is engaged respectively with the right axle shaft driving gear F25 and left half axle driving gear F213.

When front left and right drive axle rotating speed is identical：Differential planetary gear F211 revolves round the sun around differential support shaft F214 between wheel, Differential mechanism or so equispeed output.Power transmission route at this time is：Drive bevel gear D316 to driven wheel of differential F16, until cone tooth Wheel shaft F15, until bevel gear shaft driving gear F14, until differential driven gear F27 between wheel, until differential shell F29 between wheel, until poor between wheel Speed planetary gear axis F217, until (differential planetary gear F211 is only around differential branch between this hour wheel by differential planetary gear F211 between wheel Support axis F214 revolution), then pass through right axle shaft gear F28 all the way, then to right axle shaft driving gear F25, until right driving axle is driven Gear F32, until right driving axle F37；Another way passes through left half axle gear F212, until left half axle driving gear F213, until left driving Axis driven gear F42, until left driving shaft F43, differential mechanism or so equispeed output.

When front left and right drive axle differential：Differential planetary gear F211 had both surrounded the F214 revolution of differential support shaft between wheel, also The differential planetary gear axis F217 rotations between wheel, the output of differential mechanism or so differential.Power transmission route at this time is：Initiative taper Gear D 316 is to driven wheel of differential F16, until bevel gear shaft F15, until bevel gear shaft driving gear F14, until differential driven tooth between wheel F27 is taken turns, until differential shell F29 between wheel, until differential planetary gear axis F217 between wheel, until differential planetary gear F211 is (poor between wheel between wheel Speed planetary gear F211 had both surrounded the F214 revolution of differential support shaft, was also about differential planetary gear axis F217 rotations between wheel), then Pass through right axle shaft gear F28 all the way, until right axle shaft driving gear F25, until right driving axle driven gear F32, until right driving axle F37；Another way passes through left half axle gear F212, until left half axle driving gear F213, until left driving shaft driven gear F42, until left Drive shaft F43, the output of differential mechanism or so differential.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 5, the pair variable speed assembly B further includes clutch Device bolt B 11, secondary variable-speed bearing B15, secondary speed change output shaft retaining ring B14, input Simmer ring B20, input shaft end cap B19, institute It states input shaft B20 by the pair variable-speed bearing B15 to be connected with the input shaft end cap B19, the input shaft end cap B19 is fixed Input Simmer ring B20, the pair speed change output shaft retaining ring B14 are equipped on the babinet A4, in the input shaft end cap B19 It is set on the secondary speed change output shaft B13, the pair speed change output shaft B13 passes through secondary variable-speed bearing B15 and the babinet A4 It is fixed.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6, the shaft assembly D1 that reverses gear further includes reverse gear shaft Snap ring D11, reverse gear shaft thrust bearing D12 and reverse gear axis runner axle bearings D 14, reverse gear D13 pass through reverse gear axis runner axle bearings D 14 It is sleeved on reverse gear shaft D15, reverse gear shaft thrust bearing D12 is arranged in the side of reverse gear D13, reverse gear shaft snap ring D11 arrangements Reverse gear shaft D15 is located on babinet A4 in the both sides reverse gear shaft D15.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6, the shaft assembly D2 further includes an axis Bearings D 24 and an axis snap ring D26, the axis snap ring D26 are set on the axis D21, and the axis D21 passes through described one Axle bearing D24 is arranged on the babinet A4；The two shaft assemblies D3 further include jackshaft snap ring D34, midship shaft bearing D35, Midship shaft bearing D35 snap rings, intermediate shaft retaining ring D317, two shaft angle contact bearing D319, two hubcap D320 and two hubcap spiral shells Bolt D321, the jackshaft snap ring D34 and centre shaft retaining ring D317 are set on the jackshaft D32, and the jackshaft D32 is logical Midship shaft bearing D35 is crossed to connect with the babinet A4；The two axis D33 passes through two shaft angle contact bearing D319 and two shaft end Lid D320 is fixedly connected, and the two hubcaps D320 is fixed on by the two shaft ends bonnet bolt D321 on the babinet A4, institute Midship shaft bearing snap ring D315 is stated for being limited to jackshaft bearings D 35.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 7, the preceding shaft assembly E1 includes front axle tooth It is logical to take turns E11, front axle thrust bearing E12, front axle thrust race E13, front axle axle sleeve E14 and front axle E15, front axle gear E11 Spline is crossed on front axle E15, it is between thrust bearing and front axle gear E11 and right that front axle thrust race E13 is mounted on Front axle gear E11 positioning, front axle E15 are mounted on by front axle axle sleeve E14 on rear axle E25；Before preceding shaft assembly E1 front axle gears E11 Rear axle assemblies E2 further includes rear shaft end described in axle thrust bearing E12 front axle thrust race E13 front axle axle sleeve E14 front axles E15 Cover E21, rear axle bolt of cover E22, rear axle angular contact bearing E23, rear Simmer ring E24 and rear axle snap ring E27, the rear axle tooth Wheel E26 is connect with rear axle E25 by spline and is limited by the rear axle snap ring E27 and rear axle E25 axis ranks, the rear axle E25 One end is connect by needle bearing with front axle E15, and the other end is solid by rear axle angular contact bearing E23 and the rear hubcap E21 Fixed connection, the rear hubcap E21 are fixedly connected on by rear axle bolt of cover E22 on the babinet A4, the rear sealing E24 is enclosed to be arranged in hubcap E21 in the rear.

On the basis of above-described embodiment, in another embodiment of the present invention, as Fig. 7, the 4 wheel driven differential assembly E3 further include Planetary gear thrust axle sleeve E35 and planet wheel carrier thrust axle sleeve E39, the E39 installations of planet wheel carrier thrust axle sleeve are expert at Between the star gear both sides pedestal E31 and front axle E15 and rear axle E25, planetary gear thrust axle sleeve E35 is mounted on planetary gear E36 Between planet wheel carrier E31.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1 and Fig. 2, the box assembly A further includes Case lid A1, ventilation bolt A2, box body bolt A3, oil discharge screw A5 and clutch cap A6, the ventilation bolt A2 settings are described On babinet A4, the case lid A1 is fixed on by the box body bolt A3 on the babinet A4, the clutch cap A6 with it is described Babinet A4 is fixedly connected.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims

1. a kind of articulated vehicle differential speed type 4 wheel driven speed changer, which is characterized in that including box assembly, secondary variable speed assembly, shift Component, main variable speed assembly, shaft space difference speed component and preceding drive component, the box assembly include at least babinet, the pair speed change Component, shift assembly, main variable speed assembly, shaft space difference speed component and preceding drive component are fixed on the babinet, the shift group Part includes secondary gear shift component, main gear shift component and 4 wheel driven shift assembly, and the pair variable speed assembly includes at least secondary become Fast output shaft gear, secondary speed change output shaft, input shaft duplicate gear and input shaft, the pair speed change output shaft gear sliding setting On the secondary speed change output shaft, the input shaft duplicate gear is fixed on the input shaft, the pair gear shift Component includes at least secondary gear shift fork, and the pair gear shift fork is connected with the secondary speed change output shaft gear, and the pair speed change is dialled Fork can drive the secondary speed change output shaft gear sliding axially and realize secondary speed change output gear along the secondary speed change output shaft The engagement of gears different from input shaft duplicate gear, and then form the power transmission of different proportion；The main variable speed assembly packet The shaft assembly that reverses gear, a shaft assembly and two shaft assemblies are included, the shaft assembly that reverses gear reverses gear including at least reverse gear shaft and setting described Reverse gear on axis, a shaft assembly include at least an axis and be fixed on an axis one gear driving gear, Reverse gear driving gear, two gear driving gear and three gear driving gears, and an axis uses internal spline with the secondary speed change output shaft Connection；Two shaft assembly include at least two axis, two axis driven gears, jackshaft, 4 wheel driven driving gear, one reverse gear combined cover and Two or three gear combined covers, by jackshaft needle bearing empty set in jackshaft, the jackshaft is rolled two axis by jackshaft Needle bearing is equipped with the driven gear that reverses gear, a gear driven gear, two gear driven gears and three gear driven gears, the two axis driven tooth Wheel is fixedly connected by spline with two axis, and the 4 wheel driven driving gear is connected to by spline slide on the jackshaft； The one gear driving gear, two gear driving gear, three gear driving gears keep off driven gears with the gear driven gear, two respectively With three gear driven gear engagements, the driving gear that reverses gear is engaged with the reverse gear, the driven gear that reverses gear；The jackshaft By spline equipped with one reverse gear splined hub and two or three gear splined hubs, described one reverse gear splined hub be arranged in driven gear and one of reversing gear It keeps off between driven gear, between two gear driven gears and three gear driven gears, described one falls for two or the three gear splined hub setting Gear combined cover and two or three gear combined covers are respectively sleeved at described one and reverse gear in splined hub and two or three gear splined hubs, the main transformer quick change It keeps off component and includes at least a back fork and two or three gear shift forks, a back fork can drive one to reverse gear combined cover along described one Splined hub of reversing gear is mobile and realizes that one reverses gear the engaging of combined cover and reverse gear driven gear or a gear driven gear, and described 23 keep off Shift fork can drive two or three gear combined covers to be moved along two or the three gear splined hub and realize two or three gear combined covers and two gear driven gears Or three gear driven gear engagement；The shaft space difference speed component includes preceding shaft assembly, rear axle assemblies and 4 wheel driven differential assembly, described Rear axle assemblies include at least rear axle, rear axle gear and rear axle differential gear；The preceding shaft assembly includes at least front axle, front axle tooth Wheel, front axle differential gear；The 4 wheel driven differential assembly includes at least differential mechanism driven gear, planetary gear shaft, planetary gear shaft Frame, planetary gear, planet wheel carrier axle sleeve and planetary gear 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 can rotate on the rear axle and along rear axle, the rear axle differential gear and rear axle gear are arranged on axis in the rear, institute It states front axle differential gear and front axle gear is arranged on the front axle, the planet wheel carrier is equipped with multiple planetary gears Axis, the planetary gear shaft are uniformly arranged along the circumferential direction of the differential mechanism driven gear and are limited by differential mechanism driven gear, The planetary gear is set on by the planetary gear shaft in the planetary gear shaft, the planetary both sides difference It is engaged with front axle differential gear and rear axle differential gear and forms differential transmission systems；The two axis driven gear and the front axle Gear engages, and the 4 wheel driven shift assembly includes at least the 4 wheel driven shift fork being connected with 4 wheel driven driving gear, the 4 wheel driven shift fork band Dynamic 4 wheel driven driving gear is moved along the jackshaft, and can realize that 4 wheel driven driving gear engages and/or differential mechanism with front axle gear Driven gear engages, or the internal messing with the two axis driven gear；Two axis is fixedly connected with drive bevel gear, before described Drive component includes differential shaft assembly between bevel gear shaft component, wheel, right drive axle assemblies and left drive axle assemblies, the bevel gear Shaft assembly includes at least bevel gear shaft and the driven wheel of differential that is fixed on bevel gear shaft, the driven wheel of differential with it is described Drive bevel gear engages, and power is transferred to right drive axle assemblies and left drive by the bevel gear shaft component by gear member differential assembly Dynamic axle assemble.

2. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 1, which is characterized in that the pair gear shift Component further includes auxiliary variable speed fork-lever shaft, secondary gear shift seat bolt, auxiliary transmission shift seat and secondary gear shift bar, the main transformer Fast shift assembly further includes a back fork axis, two or three gear shift fork axles, main transformer quick change block seat, main transformer quick change bar and main transformer quick change Block seat bolt, the 4 wheel driven shift assembly further include 4 wheel driven shift lever, 4 wheel driven shift seat, 4 wheel driven shift seat bolt and 4 wheel driven shift fork Axis, the auxiliary transmission shift seat, main transformer quick change block seat and 4 wheel driven shift seat pass through secondary gear shift seat bolt, main transformer speed respectively Shift seat bolt and 4 wheel driven shift seat bolt are fixed on the babinet, the pair gear shift bar, main transformer quick change bar and four It drives shift lever to be separately fixed on the auxiliary transmission shift seat, main transformer quick change block seat and 4 wheel driven shift seat, described one, which reverses gear, dials Fork shaft, two or three gear shift fork axles are connected with the main transformer quick change bar, the auxiliary variable speed fork-lever shaft and 4 wheel driven shift fork axle respectively with institute It states secondary gear shift bar with 4 wheel driven shift lever to be connected, the pair gear shift fork, two or three gear shift forks, a back fork and 4 wheel driven shift fork Setting is in the auxiliary variable speed fork-lever shaft, a back fork axis, two or three gear shift fork axles and 4 wheel driven shift fork axle.

3. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 1 or 2, which is characterized in that poor between the wheel Fast shaft assembly includes differential planetary tooth between differential shell, wheel between differential driven gear, wheel between differential hubcap, right axle shaft, wheel between wheel Differential planetary gear axis between wheel, differential support shaft, left half axle and wheel, the differential support shaft pass through differential shaft angular contact axis between wheel It holds the differential hubcap between the wheel to be fixedly connected, differential hubcap is fixed on by differential shaft bolt of cover between wheel between the wheel On the babinet, the right axle shaft, left half axle are set in the differential support shaft by differential shaft axis between wheel and can be in differences Empty set rotates in fast support shaft, between the wheel differential planetary gear axis be fixed in the differential support shaft and between wheel differential from The circumferential direction of moving gear is uniformly arranged, and differential planetary gear is set on the wheel by differential planetary gear axis between wheel between the wheel Between on differential planetary gear axis, differential shell is fixed by differential planetary gear axis between the wheel and by differential between wheel between the wheel Axis axle sleeve is set on the right axle shaft, the planetary gear shaft be mounted on the pinion frame on and by differential between wheel from Moving gear outer ring limits, and differential is arranged between the wheel by differential driven gear bolt between wheel in differential driven gear between the wheel On shell, the right axle shaft is equipped with right axle shaft driving gear and right axle shaft gear, and left half axle driving tooth is provided on the left half axle Wheel and left half axle gear, institute's left half axle gear, right axle shaft gear engage composition differential transmission systems with differential planetary gear between wheel, The bevel gear shaft is equipped with bevel gear shaft driving gear, and differential driven gear is nibbled with the bevel gear shaft driving gear between the wheel It closes.

4. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 3, which is characterized in that the right drive axle group Part includes right driving axle snap ring, right driving axle driven gear, right driving axle, right drive axle bolt, right driving axle housing, right driving axle Sealing ring, right driving axle are held, the left drive axle assemblies include left driving shaft snap ring, left driving shaft driven gear, left driving shaft, Left drive axle bolt, left driving axle housing, left driving shaft sealing ring and left driving shaft are held, and the right driving axle is held by right driving axle It is connected with right driving axle housing, the right driving axle housing is fixed by right drive axle bolt with the babinet, and the left driving shaft is logical It crosses left driving shaft and holds and be connected with left driving axle housing, the left driving axle housing is fixed by left drive axle bolt with the babinet, institute It states right driving axle driven gear and left driving shaft driven gear is respectively fixedly disposed on the right driving axle and left driving shaft, and It is engaged respectively with the right axle shaft driving gear and left half axle driving gear.

5. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 3, which is characterized in that the pair variable speed assembly Further include clutch bolt, secondary variable-speed bearing, secondary speed change output shaft retaining ring, input Simmer ring, input shaft end cap, the input Axis is connected by the secondary variable-speed bearing with the input shaft end cap, and the input shaft end cap is fixed on the babinet, described Input Simmer ring is equipped in input shaft end cap, the pair speed change output shaft baffle ring is set on the secondary speed change output shaft, institute Secondary speed change output shaft is stated to fix by secondary variable-speed bearing and the babinet.

6. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 5, which is characterized in that the shaft assembly that reverses gear also wraps Reverse gear shaft snap ring, reverse gear shaft thrust bearing and reverse gear axis runner axle bearing are included, reverse gear is mounted in by reverse gear axis runner axle bearing holder (housing, cover) On reverse 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 both sides and will reverse gear Axis is located on babinet.

7. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 6, which is characterized in that a shaft assembly is also Including an axle bearing and an axis snap ring, the axis snap ring is set on an axis, and an axis passes through an axle bearing It is arranged on the babinet；Two shaft assembly further includes jackshaft snap ring, midship shaft bearing, midship shaft bearing snap ring, centre Shaft retaining ring, two shaft angle contact bearings, two hubcaps and two shaft end bonnet bolts, the jackshaft snap ring and jackshaft baffle ring are set in On the jackshaft, the jackshaft is connect by midship shaft bearing with the babinet；Two axis passes through two shaft angle engagement shafts It holds and is fixedly connected with two hubcap, two hubcap is fixed on by two shaft end bonnet bolt on the babinet, institute Midship shaft bearing snap ring is stated for being limited to midship shaft bearing.

8. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 7, which is characterized in that the preceding shaft assembly packet Front axle gear, front axle thrust bearing, front axle thrust race, front axle axle sleeve and front axle, front axle gear is included to install by spline On front axle, front axle thrust race is mounted between thrust bearing and front axle gear and is positioned to front axle gear, and front axle is logical Front axle axle sleeve is crossed on rear axle；The rear axle assemblies further include rear hubcap, rear axle bolt of cover, rear axle angular contact axis It holds, rear Simmer ring and rear axle snap ring, the rear axle gear is by spline and rear axis connection and by the rear axle snap ring with after Axis axis rank limits, described rear axle one end by needle bearing and preceding axis connection, the other end by rear axle angular contact bearing with it is described Hubcap is fixedly connected afterwards, and the rear hubcap is fixedly connected on by rear axle bolt of cover on the babinet, and the rear axle is close Seal setting is in the rear in hubcap.

9. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 8, which is characterized in that the 4 wheel driven differential group Part further includes planetary gear thrust axle sleeve and planet wheel carrier thrust axle sleeve, and planet wheel carrier thrust axle sleeve is mounted on planet Between gear pedestal both sides and front axle and rear axle, planetary gear thrust axle sleeve be mounted on planetary gear and planet wheel carrier it Between.

10. articulated vehicle differential speed type 4 wheel driven speed changer according to claim 9, which is characterized in that the box assembly Further include that case lid, ventilation bolt, box body bolt, oil discharge screw and clutch cap, the ventilation bolt are arranged on the babinet, The case lid is fixed on by the box body bolt on the babinet, and the clutch cap is fixedly connected with the babinet.