CN104723867A - 48F+41R load gear shifting tractor gearbox with crawling gear - Google Patents
48F+41R load gear shifting tractor gearbox with crawling gear Download PDFInfo
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- CN104723867A CN104723867A CN201510123309.4A CN201510123309A CN104723867A CN 104723867 A CN104723867 A CN 104723867A CN 201510123309 A CN201510123309 A CN 201510123309A CN 104723867 A CN104723867 A CN 104723867A
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Abstract
A 48F+41R load gear shifting tractor gearbox with a crawling gear comprises a load gear shifting transmission device, a crawling gear transmission device, a load reversing transmission device, a section gear shifting transmission device, a four-wheel drive device and a pump drive and power output transmission device. The load gear shifting transmission device is connected with an engine, the section gear shifting transmission device is connected with a rear axle, the four-wheel drive device is connected with a front axle, and the pump drive and power output transmission device is connected with a power output and a pump driver; a first shaft, a second shaft, a third shaft and a fourth shaft are installed in the load gear shifting transmission device, a fifth shaft is installed in the load reversing transmission device, a sixth shaft and a seventh shaft are installed in the section gear shifting transmission device, a four-wheel drive idler shaft and a four-wheel drive output shaft are installed in the four-wheel drive device, and a pump driver driving shaft and a pump driver driven shaft are installed in the pump drive and power output transmission device; axes of the shafts from first to fifth, the seventh shaft and the four-wheel drive output shaft are distributed in the bilateral symmetry plane of the gearbox, and the axes of the shafts from first to fifth and the seventh shaft are located on the same straight line.
Description
Technical field
The invention belongs to trac. field, relate to the gear case type transmission arrangement of the gearshift of a kind of tractors, the gearshift of load-commutated, section, creeper gear, particularly relate to a kind of 48F+41R load gearshift band creeper gear gear box of tractor.
Background technology
At present, the mechanical changeover modes such as domestic large power wheel tractor change speed gear box many employings engaging sleeve, synchro, first need be separated master clutch during trac. gearshift, cut off engine power, and then change to the gear of needs, and shift speed is comparatively slow, affects operating efficiency.Along with the fast development of global tractor industry, the upgrading of trac. technical merit also makes encouraging progress, and wherein (technology is the R&D direction of domestic trac. manufacturing enterprise in load gearshift.
Load gearshift technology controls gearbox shifting by tractor hydraulic control system and liquid clutch, realizes that change speed gear box is shifted gears in uninterruptible power situation, switch operation.Load gearshift technology, relative to traditional mechanical changeover, can realize shift process and not interrupt power, simplify the operation course, greatly reduce operation easier and labour intensity, improve operation quality, thus realize the lifting of operating efficiency.Therefore, the gearbox transmission device of tractor of a kind of like this load of exploitation gearshift band creeper gear is completely necessary.
Summary of the invention
The object of the present invention is to provide a kind of compact conformation, multiple functional, driving efficiency is high, the gearshift of low cost of manufacture, bringing onto load, load-commutated, creeper gear gearbox transmission device of tractor, that is: 48F+41R load gearshift band creeper gear gear box of tractor.
Technical scheme of the present invention is: 48F+41R load gearshift band creeper gear gear box of tractor, comprising: load shift transmission mechanism, creeper gear driving device, load-commutated driving device, section shift transmission mechanism, four-wheel drive device, pump drive and power output actuator; Load shift transmission mechanism input end is connected with tractor engine, section shift transmission mechanism mouth is connected with tractor rear axle, four-wheel drive device mouth is connected with farm tractor front axle, and pump drives to drive with pump with power output actuator mouth and Power output and is connected; In load shift transmission mechanism, an axle and two axles are installed, three axles, four axles; In load-commutated driving device, five axles are installed; In section shift transmission mechanism, six axles and seven axles are installed; In four-wheel drive device, four wheel drive idler shaft and four wheel drive output shaft are installed; Pump drives and in power output actuator, installation pump drives imput shaft and pump to drive driven shaft; Wherein an axle, two axles, three axles, four axles, five axles, seven axles, four wheel drive output shaft axis are all distributed in the bilateral symmetry plane of gear box of tractor, and an axle, four axles, five axle axis on same straight line, two axles, three axles, seven axle axis are on same straight line; From tractor engine to tractor rear axle direction, six axle axis and pump drive imput shaft axis to lay respectively at right side and the left side of trac. bilateral symmetry plane.
In load shift transmission mechanism, on one axle, input end is connected with tractor engine, then be IV gear driving gear, III gear power-transfer clutch, III gear driving gear, I gear driving gear, I gear power-transfer clutch, II gear driving gear successively, wherein IV gear driving gear, II gear driving gear are fixed on an axle, and III gear driving gear, I gear driving gear are socketed on an axle; The housing of III gear power-transfer clutch is fixed on IV gear driving gear, and the housing of I gear power-transfer clutch is fixed on II gear driving gear.
On two axles, from tractor engine to tractor rear axle direction, IV gear driven gear, IV gear clutch, III gear driven gear, I gear driven gear, II gear power-transfer clutch, II gear driven gear successively, wherein III gear driven gear, I gear driven gear are fixed on two axles, and IV gear driven gear, II gear driven gear are socketed on two axles; The housing of IV gear power-transfer clutch IV is fixed on III gear driven gear, and the housing of II gear clutch is fixed on I gear driven gear.
On three axles, from tractor engine direction, be that H keeps off driving gear, L keeps off power-transfer clutch, L keeps off driving gear successively, wherein H gear driving gear is fixed on three axles, and the housing that L keeps off power-transfer clutch is fixed on H gear driving gear.
On four axles, from tractor engine direction, be that H keeps off driven gear, H keeps off power-transfer clutch, L keeps off flower wheel successively, wherein L gear flower wheel is fixed on four axles, and the housing that H keeps off power-transfer clutch is fixed on L gear flower wheel.
In creeper gear driving device, be furnished with sun and planet gear, comprise sun wheel, satellite gear, gear ring, pinion carrier and sliding gear collar; Wherein sun wheel is the input end of planetary mechanism, is fixed on four axles, and gear ring is as the braking original paper of planetary mechanism, and pinion carrier is as the mouth of planetary mechanism; Sliding gear collar by spline joint on five axles.
In load-commutated driving device, be furnished with five axles, forward gear driving gear, F keep off power-transfer clutch, R keeps off power-transfer clutch, fall back gear driving gear, wherein forward gear driving gear, the gear driving gear that falls back are socketed on five axles, the housing that F keeps off power-transfer clutch is fixed on forward gear driving gear, and the housing of R gear power-transfer clutch is fixed in and falls back on gear driving gear.
In section shift transmission mechanism, be furnished with six axles, seven axles, six axles are connected with LL gear driving gear, L keeps off driving gear, M keeps off driving gear, V keeps off driving gear, seven axles are socketed with LL keeps off driven gear, L keeps off driven gear, M keeps off driven gear, V and keep off driven gear, are connected with LL-L gear synchro, M-V keeps off synchro, four wheel drive driving gear.
In four-wheel drive device, be furnished with four wheel drive idler shaft, four wheel drive output shaft, four wheel drive idler shaft is socketed with four wheel drive idle pulley, four wheel drive output shaft is socketed with four wheel drive driven gear, four wheel drive driven gear is welded with four wheel drive clutch-bell cover.
Drive at pump and in power output actuator, be furnished with pump and drive imput shaft, pump to drive driven shaft, wherein pump driving imput shaft is connected with dual gear, pump drives on driven shaft and is connected with pump driver gear.
Can reach following good effect after the present invention adopts technique scheme: this programme compact conformation, arrangement convenience, effectively saves space, reduces the volume of change speed gear box, is also convenient to the layout of the peripheral pipe component of change speed gear box simultaneously.Further reduce the load of synchro, improve the service life of synchro.Drive path is clear, improves tractor work efficiency, reduces chaufeur labour intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of 48F+41R load of the present invention gearshift band creeper gear gear box of tractor.
Fig. 2 be 48F+41R load of the present invention gearshift band creeper gear gear box of tractor axle system space arrangement plan (from driving engine direction).
Detailed description of the invention
As shown in Figure 1 and 2,48F+41R load gearshift band creeper gear gear box of tractor, mainly comprises: load shift transmission mechanism 1, creeper gear driving device 2, load-commutated driving device 3, section shift transmission mechanism 4, four-wheel drive device 5, pump drive and power output actuator 6; Load shift transmission mechanism 1 input end is connected with tractor engine A, section shift transmission mechanism 4 mouth is connected with tractor rear axle B, four-wheel drive device 5 mouth is connected with farm tractor front axle C, and pump drives and drives E to be connected with Power output D with pump with power output actuator 6 mouth; In load shift transmission mechanism 1, an axle S1 and two axle S2, three axle S3, four axle S4 are installed; In load-commutated driving device 3, five axle S5 are installed; In section shift transmission mechanism 4, six axle S6 and seven axle S7 are installed; In four-wheel drive device 5, four wheel drive idler shaft S8 and four wheel drive output shaft S9 is installed; Pump drives installation pump in E and power output actuator 6 to drive imput shaft S10 and pump to drive driven shaft S11; Axle owner body arrangement form is two-axis layout.
One axle S1, four axle S4, five axle S5 axis are on same straight line, and the direction from tractor engine A to tractor rear axle B, arranges successively.Two axle S2, three axle S3, seven axle S7 axis are on same straight line; The direction from tractor engine A to tractor rear axle B, arranges successively.Wherein on an axle S1 and two axle S2, corresponding gear is meshed, and two axle S2 are positioned at immediately below an axle S1; On three axle S3 and four axle S4, corresponding gear is meshed, and three axle S3 are positioned at immediately below four axle S4.
On fall back gear driving gear 26 and seven axle S7 on five axle S5, LL gear driven gear 31 often engages, and seven axle S7 are positioned at immediately below five axle S5.One axle S1, two axle S2, three axle S3, four axle S4, five axle S5, seven axle S7, nine axle S9 are positioned at the longitudinal symmetrical plane of trac..
Six axle S6 are positioned at the right side of the longitudinal symmetrical plane of trac..Nine axle S9 are arranged in immediately below seven axle S7, three axle S3.Ten axle S10,11 axle S11 are positioned at the left side of the longitudinal symmetrical plane of trac., overall in cross arranged crosswise.
In load shift transmission mechanism 1, be furnished with I gear power-transfer clutch I, II and keep off power-transfer clutch II, III gear power-transfer clutch III, IV gear power-transfer clutch IV, H gear power-transfer clutch H, L gear power-transfer clutch L.Wherein I gear power-transfer clutch I, II keeps off power-transfer clutch II, III and keeps off power-transfer clutch III, IV gear power-transfer clutch IV, and each power-transfer clutch controls separately a gear, can form four power gears, is respectively I gear, II gear, III gear, IV gear.H keeps off power-transfer clutch H, L and keeps off power-transfer clutch L, and each power-transfer clutch controls separately a gear, can realize two height gears, be respectively high gear, low gear.Power gear forms eight gears together with high to low gear bit pattern, has two power-transfer clutchs to combine at every turn simultaneously, and wherein four power gear power-transfer clutchs are in conjunction with one of them, and two height gear power-transfer clutchs are in conjunction with one of them.
On one axle S1, input end is connected with tractor engine A, then be that IV gear driving gear 7, III keeps off power-transfer clutch III, III gear driving gear 8, I gear driving gear 9, I gear power-transfer clutch I, II gear driving gear 10 successively, wherein IV gear driving gear 7, II gear driving gear 10 is fixed on an axle S1, and III gear driving gear 8, I keeps off driving gear 9 and is socketed on an axle S1; The housing of III gear power-transfer clutch III is fixed on IV gear driving gear 7, and the housing of I gear power-transfer clutch I is fixed on II gear driving gear 10.III gear power-transfer clutch III can be fixed together with III gear driving gear 8 according to control command, and now an axle S1, IV gear driving gear 7, III gear power-transfer clutch III, III keep off the parts such as driving gear 8 and do not relatively rotate.I gear power-transfer clutch I can be fixed together with I gear driving gear 9 according to control command, and now an axle S1, II gear driving gear 10, I gear power-transfer clutch I, I keep off the parts such as driving gear 9 and do not relatively rotate.
On two axle S2, the direction from tractor engine A to tractor rear axle B, that IV gear driven gear 11, IV keeps off power-transfer clutch IV, III gear driven gear 12, I gear driven gear 13, II gear power-transfer clutch II, II gear driven gear 14 successively, wherein III gear driven gear 12, I gear driven gear 13 is fixed on two axle S2, and IV gear driven gear 11, II keeps off driven gear 14 and is socketed on two axle S2; The housing of IV gear power-transfer clutch IV is fixed on III gear driven gear 12, and the housing of II gear power-transfer clutch II is fixed on I gear driven gear 13.
IV gear power-transfer clutch IV can be fixed together with IV gear driven gear 11 according to control command, and now two axle S2, IV gear driven gear 11, IV gear power-transfer clutch IV, III keep off the parts such as driven gear 12 and do not relatively rotate.II gear power-transfer clutch II can be fixed together with II gear driven gear 14 according to control command, and now two axle S2, I gear driven gear 13, II gear power-transfer clutch II, II keep off the parts such as driven gear 14 and do not relatively rotate.
On three axle S3, from tractor engine A direction, that H keeps off driving gear 15, L keeps off power-transfer clutch L, L and keeps off driving gear 16 successively, wherein H gear driving gear 15 is fixed on three axle S3, the housing of L gear power-transfer clutch L is fixed in L gear power-transfer clutch L on H gear driving gear 15 and can be fixed together with L gear driving gear 16 according to control command, and now the part such as three axle S3, H gear driving gears 15, L gear power-transfer clutch L, L gear driving gear 16 does not relatively rotate.
On four axle S4, from tractor engine A direction, be that H keeps off driven gear 17, H keeps off power-transfer clutch H, L and keeps off flower wheel 18 successively, wherein L gear flower wheel 18 is fixed on four axle S4, and the housing of H gear power-transfer clutch H is fixed in L and keeps off on flower wheel 18.H keeps off power-transfer clutch H and can be fixed together with H gear driven gear 17 according to control command, and now four axle S4, H keep off driven gears 17, H gear power-transfer clutch H, L keep off the parts such as flower wheel 18 and do not relatively rotate.
In creeper gear driving device 2, adopt planetary structure, be positioned at box house, can be used as independently module and carry out choosing dress.Comprise sun wheel 22, satellite gear 21, gear ring 20, pinion carrier 23 and sliding gear collar 24; Wherein sun wheel 22 is the input end of planetary mechanism, and be fixed on four axle S4, gear ring 20 is as the braking original paper of planetary mechanism, and pinion carrier 23 is as the mouth of planetary mechanism; Sliding gear collar 24 by spline joint on five axle S5.
In load-commutated driving device 3, be furnished with F and keep off power-transfer clutch F, R gear power-transfer clutch R two power-transfer clutchs.F keeps off power-transfer clutch F and R and keeps off power-transfer clutch R, can control it on the one hand and combines and be separated opportunity, realize load-commutated according to control command; All can be used as master clutch on the other hand to use when carrying out section gear shift operation, when namely carrying out gear shift operation between section, first disconnect F and keep off power-transfer clutch F or R gear power-transfer clutch R, engine power cuts off herein, then carries out synchro gear shift operation.
In load-commutated driving device 3, comprising: five axle S5, forward gear driving gear 25, F keep off power-transfer clutch F, R and keep off power-transfer clutch R, fall back and keep off driving gear 26.Wherein forward gear driving gear 25, the gear driving gear 26 that falls back are socketed on five axle S5, and the housing that F keeps off power-transfer clutch F is fixed on forward gear driving gear 25, and the housing of R gear power-transfer clutch R is fixed in and falls back on gear driving gear 26.
In section shift transmission mechanism 4, be furnished with six axle S6, seven axle S7.Six axle S6 are connected with LL gear driving gear 30, L keeps off driving gear 29, M keeps off driving gear 28, V keeps off driving gear 27.Seven axle S7 are socketed with LL keeps off driven gear 31, L keeps off driven gear 32, M keeps off driven gear 33, V and keep off driven gear 34, are connected with LL-L gear synchro 35, M-V keeps off synchro 36, four wheel drive driving gear 37.V keeps off the forward gear driving gear 25 in driving gear 27 and load-commutated driving device 3, forms forward gear constant mesh gear secondary.LL keeps off the gear driving gear 26 that falls back in driven gear 31 and load-commutated driving device 3, forms the gear constant mesh gear that falls back secondary.
In four-wheel drive device 5, be furnished with four wheel drive idler shaft S8, four wheel drive output shaft S9.Four wheel drive idler shaft S8 is socketed with four wheel drive idle pulley 38.Four wheel drive output shaft S9 is socketed with four wheel drive driven gear 39.Four wheel drive driven gear 39 is welded with four wheel drive clutch-bell cover.
Drive at pump and in power output actuator 6, be furnished with pump and drive imput shaft S10, pump to drive driven shaft S11.Wherein pump drives on imput shaft S10 and is connected with dual gear 40, and pump drives on driven shaft S11 and is connected with pump driver gear 41.Engine power keeps off driven gear 14 through II gear driving gear 10, II, is delivered on dual gear 40.
Tractor engine A power is input in load shift transmission mechanism 1, and power is divided into two-way, and creeper gear driving device 2 is arrived through overload shift transmission mechanism 1 in a road; Dual gear 40 is arrived through overload shift transmission mechanism 1 in another road, power is divided into two-way again by dual gear 40, one road power is through dual gear 40 on Power output D, and another road power drives on E to pump through dual gear 40, realizes the supply of tractor hydraulic system oil sources.
In load shift transmission mechanism 1, I gear power-transfer clutch I, II keeps off power-transfer clutch II, III gear power-transfer clutch III, IV gear power-transfer clutch IV can form four power gears, be respectively I gear, II gear, III gear, IV gear, each power-transfer clutch controls separately a gear, H keeps off power-transfer clutch H, L gear power-transfer clutch L can realize two height gears, be respectively high gear, low gear, each power-transfer clutch controls separately a gear.
I gear: I gear power-transfer clutch I on an axle S1 combines, II gear power-transfer clutch II, IV on III gear power-transfer clutch III, two axle S2 on one axle S1 keeps off power-transfer clutch IV and is separated, and tractor engine A power keeps off driving gear 9 → I by axle S1 → II gear driving gear 10 → I gear power-transfer clutch I → I and keeps off driven gear 13 → bis-axle S2.
II gear: II gear power-transfer clutch II on two axle S2 combines, the IV gear power-transfer clutch IV that I gear power-transfer clutch I, III on one axle S1 keeps off on power-transfer clutch III, two axle S2 is separated, and tractor engine A power keeps off power-transfer clutch II → I by axle S1 → II gear driving gear 10 → II gear driven gear 14 → II and keeps off driven gear 13 → bis-axle S2.
III gear: III gear power-transfer clutch III on an axle S1 combines, power-transfer clutch II, IV on I gear power-transfer clutch I, two axle S2 on one axle S1 keeps off power-transfer clutch IV and is separated, and tractor engine A power keeps off driving gear 7 → III gear power-transfer clutch III → III gear driving gear 8 → III by axle S1 → IV and keeps off driven gear 12 → bis-axle S2.
IV gear: IV gear power-transfer clutch IV on two axle S2 combines, the II gear power-transfer clutch II that power-transfer clutch I, III on one axle S1 keeps off on power-transfer clutch III, two axle S2 is separated, and tractor engine A power keeps off driving gear 7 → IV gear driven gear 11 → IV gear power-transfer clutch IV → III by axle S1 → IV and keeps off driven gear 12 → bis-axle S2.
High gear: the H on four axle S4 keeps off power-transfer clutch H and combines, the L gear power-transfer clutch L on three axle S3 is separated, and power keeps off driven gear 17 → H by three axle S3 → H gear driving gear 15 → H and keeps off on power-transfer clutch H → L gear driven gear 18 → tetra-axle S4.
Low gear: the L on three axle S3 keeps off power-transfer clutch L and combines, the H gear power-transfer clutch H on four axle S4 is separated, and power keeps off power-transfer clutch L → L by three axle S3 → H gear driving gear 15 → L and keeps off driving gear 16 → L gear driven gear 18 → tetra-axle S4.
Wherein two axle S2 and three axle S3 are fixed together by spline, and in load shift transmission mechanism 1, power is all through an axle S1, is passed to two axle S2, then is passed to three axle S3, finally reaches four axle S4.
Power is after four axle S4 enter creeper gear driving device 2, and two-way transmission is divided in the position according to sliding gear collar 24:
Normal gear: creeper gear sliding gear collar 24 slides to tractor engine A direction, and power is through four axle S4 → sliding gear collar 24 → five axle S5.
Creeper gear: creeper gear sliding gear collar 24 slides to direction, tractor rear axle C place, and power is through four axle S4 → sun wheel 22 → satellite gear 21 → pinion carrier 23 → sliding gear collar 24 → five axle S5.
After on transmission of power to five axle S5, the bonding state keeping off power-transfer clutch F and R gear power-transfer clutch R according to F on five axle S5 realizes forward gear or the gear that falls back respectively under bringing onto load state:
Forward gear: F keeps off power-transfer clutch F and combines and R gear power-transfer clutch R separation, and power keeps off power-transfer clutch F → forward gear driving gear 25 → V by five axle S5 → F and keeps off driving gear 27 → six axle S6.
Gear: the F that falls back keeps off power-transfer clutch F and is separated and R gear power-transfer clutch R combination, and power keeps off the power-transfer clutch R → gear driving gear 26 → LL that falls back by five axle S5 → R and keeps off driven gear 31.
Power keeps off power-transfer clutch F or R through F and keeps off power-transfer clutch R in section gearshift 4, can form four section gears according to the position that LL-L keeps off synchro 35, M-V keeps off synchro 36, i.e. LL gear, and L keeps off, and M keeps off, and V keeps off, and rotating speed raises successively.
Advance LL keeps off: LL-L keeps off the connection tooth engagement that synchro 35 slides on same LL gear driven gear 31 left, and power keeps off driving gear 30 → LL gear driven gear 31 → LL-L by five axle S5 → F gear power-transfer clutch F → forward gear driving gear 25 → V gear driving gear 27 → six axle S6 → LL and keeps off synchro 35 → seven axle S7.
Advance L keeps off: LL-L keeps off the connection tooth engagement that synchro 35 slides on same L gear driven gear 32 to the right, and power keeps off driving gear 29 → L gear driven gear 32 → LL-L by five axle S5 → F gear power-transfer clutch F → forward gear driving gear 25 → V gear driving gear 27 → six axle S6 → L and keeps off synchro 35 → seven axle S7.
Advance M keeps off: M-V keeps off the connection tooth engagement that synchro 36 slides on same M gear driven gear 33 left, and power keeps off driving gear 28 → M gear driven gear 33 → M-V by five axle S5 → F gear power-transfer clutch F → forward gear driving gear 25 → V gear driving gear 27 → six axle S6 → M and keeps off synchro 36 → seven axle S7.
Advance V keeps off: M-V keeps off the connection tooth engagement that synchro 36 slides on same V gear driven gear 34 to the right, and power keeps off power-transfer clutch F → forward gear driving gear 25 → V gear driving gear 27 → V by five axle S5 → F and keeps off driven gear 34 → M-V gear synchro 36 → seven axle S7.
The LL that falls back keeps off: LL-L keeps off the connection tooth engagement that synchro 35 slides on same LL gear driven gear 31 left, and power keeps off the power-transfer clutch R → gear driving gear 26 → LL that falls back by five axle S5 → R and keeps off driven gear 31 → LL-L gear synchro 35 → seven axle S7.
The L that falls back keeps off: the connection tooth that LL-L gear synchro 35 slides to the right on same L gear driven gear 32 engages, and power keeps off power-transfer clutch R → gear driving gear 26 → LL gear driven gear 31 → LL gear driving gear 30 → six axle S6 → L gear driving gear 29 → L that falls back by five axle S5 → R and keeps off driven gear 32 → LL-L and keep off synchro 35 → seven axle S7.
The M that falls back keeps off: the connection tooth that M-V gear synchro 36 slides left on same M gear driven gear 33 engages, and power keeps off power-transfer clutch R → gear driving gear 26 → LL gear driven gear 31 → LL gear driving gear 30 → six axle S6 → M gear driving gear 28 → M that falls back by five axle S5 → R and keeps off driven gear 33 → M-V and keep off synchro 36 → seven axle S7.
The V that falls back keeps off: the connection tooth that M-V gear synchro 36 slides to the right on same V gear driven gear 34 engages, and power keeps off power-transfer clutch R → gear driving gear 26 → LL gear driven gear 31 → LL gear driving gear 30 → six axle S6 → V gear driving gear 27 → V that falls back by five axle S5 → R and keeps off driven gear 34 → M-V and keep off synchro 36 → seven axle S7.
According to the state determination four wheel drive of four wheel drive power-transfer clutch W and two-wheel drive after transmission of power to seven axle S7:
Four wheel drive: W is inoperative for four wheel drive power-transfer clutch, power one route seven axle S7 is delivered to tractor rear axle B, and another road is simultaneously by seven axle S7 → four wheel drive driving gear 37 → four wheel drive idle pulley 38 → four wheel drive driven gear 39 → four wheel drive power-transfer clutch W → nine axle S9 → farm tractor front axle C.
Two-wheel drive: four wheel drive power-transfer clutch W works, the direct route seven axle S7 of power is delivered to tractor rear axle B.
Power output D and pump drive E: power keeps off driving gear 10 → II by axle S1 → II and keeps off driven gear 14 → dual gear 40.Power is divided into two-way again by dual gear 40, one road power is on dual gear 40 to ten axle S10, on most Zhongdao Power output D, another road power through dual gear 40 in pump driver gear 41, be delivered on 11 axle S11 again, thus drive pump to drive E work, realize the supply of tractor hydraulic system oil sources.
When normal gear, forward gear has 32 gears; The gear that falls back considers that safety factor, speed can not be too high, masks 7 gears, and finally remaining have 25 gears.
When creeping gear, partly shielding effect is carried out to the speed that M section and V section obtain.When therefore mounting creeper gear, advance gear and the gear that falls back respectively increase by 16 gears.
Adopt this arrangement, drive path is clear, and structure is simple, characteristics of compact layout, can obtain more gear number simultaneously, also power can be transmitted to tractor rear axle B, farm tractor front axle C, Power output D.Driven and the combination of power output actuator 6 by load shift transmission mechanism 1, creeper gear driving device 2, load-commutated driving device 3, section shift transmission mechanism 4, four-wheel drive device 5, pump, whole change speed gear box can realize 48 forward gears and 41 gears that fall back.Forward gear speed covers 0.3 ~ 50.0km/h, the gear speed that falls back covers 0.4 ~ 28.2km/h, meet domestic and international various tractor work operating mode to the requirement of speed, simultaneously owing to have employed load gearshift and load-commutated technology, gear and travel direction conversion can be carried out under the condition not cutting off trac. power transimission.Gearshift mode adopts push-botton operation, easily fast, drastically increases tractor work efficiency, reduces chaufeur labour intensity.
Claims (10)
1.48F+41R load gearshift band creeper gear gear box of tractor, comprising: load shift transmission mechanism (1), creeper gear driving device (2), load-commutated driving device (3), section shift transmission mechanism (4), four-wheel drive device (5), pump drive and power output actuator (6); It is characterized in that: load shift transmission mechanism (1) input end is connected with tractor engine (A), section shift transmission mechanism (4) mouth is connected with tractor rear axle (B), four-wheel drive device (5) mouth is connected with farm tractor front axle (C), and pump drives and drives (E) to be connected with Power output (D) with pump with power output actuator (6) mouth; In load shift transmission mechanism (1), an axle (S1) and two axles (S2) are installed, three axles (S3), four axles (S4); In load-commutated driving device (3), five axles (S5) are installed; In section shift transmission mechanism (4), six axles (S6) and seven axles (S7) are installed; In four-wheel drive device (5), four wheel drive idler shaft (S8) and four wheel drive output shaft (S9) are installed; Pump drives (E) and the interior installation pump of power output actuator (6) to drive imput shaft (S10) and pump to drive driven shaft (S11); Wherein an axle (S1), two axles (S2), three axles (S3), four axles (S4), five axles (S5), seven axles (S7), four wheel drive output shaft (S9) axis are all distributed in the bilateral symmetry plane of gear box of tractor, and an axle (S1), four axles (S4), five axles (S5) axis are on same straight line, two axles (S2), three axles (S3), seven axles (S7) axis are on same straight line; From tractor engine (A) to tractor rear axle (B) direction, six axles (S6) axis and pump drive imput shaft (S10) axis to lay respectively at right side and the left side of trac. bilateral symmetry plane.
2. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: in load shift transmission mechanism (1), on one axle (S1), the same tractor engine of input end (A) is connected, then be IV gear driving gear (7) successively, III gear power-transfer clutch (III), III gear driving gear (8), I gear driving gear (9), I gear power-transfer clutch (I), II gear driving gear (10), wherein IV gear driving gear (7), II gear driving gear (10) is fixed on an axle (S1), III gear driving gear (8), I gear driving gear (9) is socketed on an axle (S1), the housing of III gear power-transfer clutch III is fixed on IV gear driving gear (7), and the housing of I gear power-transfer clutch (I) is fixed on II gear driving gear (10).
3. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: on two axles (S2), from tractor engine (A) to tractor rear axle (B) direction, IV gear driven gear (11) successively, IV gear power-transfer clutch (IV), III gear driven gear (12), I gear driven gear (13), II gear power-transfer clutch (II), II gear driven gear (14), wherein III gear driven gear (12), I gear driven gear (13) is fixed on two axles (S2), IV gear driven gear (11), II gear driven gear 14 is socketed on two axles (S2), the housing of IV gear power-transfer clutch IV is fixed on III gear driven gear (12), and the housing of II gear power-transfer clutch (II) is fixed on I gear driven gear (13).
4. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: on three axles (S3), from tractor engine (A) direction, that H keeps off driving gear (15), L keeps off power-transfer clutch (L), L keeps off driving gear (16) successively, wherein H gear driving gear (15) is fixed on three axles (S3), and the housing that L keeps off power-transfer clutch (L) is fixed on H gear driving gear (15).
5. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: on four axles (S4), from tractor engine (A) direction, that H keeps off driven gear (17), H keeps off power-transfer clutch (H), L keeps off flower wheel (18) successively, wherein L gear flower wheel (18) is fixed on four axles (S4), and the housing that H keeps off power-transfer clutch (H) is fixed on L gear flower wheel (18).
6. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: in creeper gear driving device (2), be furnished with sun and planet gear, comprise sun wheel (22), satellite gear (21), gear ring (20), pinion carrier (23) and sliding gear collar (24); Wherein sun wheel (22) input end that is planetary mechanism, be fixed on four axles (S4), gear ring (20) is as the braking original paper of planetary mechanism, and pinion carrier (23) is as the mouth of planetary mechanism; Sliding gear collar (24) by spline joint on five axles (S5).
7. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: in load-commutated driving device (3), be furnished with five axles (S5), forward gear driving gear (25), F keeps off power-transfer clutch (F), R keeps off power-transfer clutch (R), fall back gear driving gear (26), wherein forward gear driving gear (25), gear driving gear (26) that falls back is socketed on five axles (S5), the housing that F keeps off power-transfer clutch (F) is fixed on forward gear driving gear (25), the housing of R gear power-transfer clutch (R) is fixed in and falls back on gear driving gear (26).
8. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: in section shift transmission mechanism (4), be furnished with six axles (S6), seven axles (S7), six axles (S6) are connected with LL and keep off driving gear (30), L keeps off driving gear (29), M keeps off driving gear (28), V keeps off driving gear (27), seven axles (S7) are socketed with LL and keep off driven gear (31), L keeps off driven gear (32), M keeps off driven gear (33), V keeps off driven gear (34), be connected with LL-L and keep off synchro (35), M-V keeps off synchro (36), four wheel drive driving gear (37).
9. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: in four-wheel drive device (5), be furnished with four wheel drive idler shaft (S8), four wheel drive output shaft (S9), four wheel drive idler shaft (S8) is socketed with four wheel drive idle pulley (38), four wheel drive output shaft (S9) is socketed with four wheel drive driven gear (39), (39) are welded with four wheel drive clutch-bell cover to four wheel drive driven gear.
10. 48F+41R load gearshift band creeper gear gear box of tractor according to claim 1, it is characterized in that: in pump driving and power output actuator (6), being furnished with pump drives imput shaft (S10), pump to drive driven shaft (S11), wherein pump drives in imput shaft (S10) and is connected with dual gear (40), and pump drives on driven shaft (S11) and is connected with pump driver gear (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123309.4A CN104723867A (en) | 2015-03-20 | 2015-03-20 | 48F+41R load gear shifting tractor gearbox with crawling gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123309.4A CN104723867A (en) | 2015-03-20 | 2015-03-20 | 48F+41R load gear shifting tractor gearbox with crawling gear |
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| Publication Number | Publication Date |
|---|---|
| CN104723867A true CN104723867A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510123309.4A Pending CN104723867A (en) | 2015-03-20 | 2015-03-20 | 48F+41R load gear shifting tractor gearbox with crawling gear |
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| CN (1) | CN104723867A (en) |
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| CN107084230A (en) * | 2017-06-09 | 2017-08-22 | 吉林大学 | 16+16 full powers are shifted gears and commutation gearbox |
| CN107091302A (en) * | 2017-06-07 | 2017-08-25 | 吉林大学 | A kind of 16+16 full powers gearshift and commutation gearbox |
| CN107804163A (en) * | 2017-11-27 | 2018-03-16 | 吉林大学 | A kind of full power gearshift and commutation gear box of tractor |
| CN110469639A (en) * | 2019-08-29 | 2019-11-19 | 河南科技大学 | A kind of tractor full power power-shift gear box |
| CN112664624A (en) * | 2020-12-07 | 2021-04-16 | 第一拖拉机股份有限公司 | Gearbox of 40F +40R power gear-shifting tractor |
| CN112984055A (en) * | 2021-05-12 | 2021-06-18 | 常州华创航空科技有限公司 | Transmission and tractor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105730229A (en) * | 2016-04-15 | 2016-07-06 | 第一拖拉机股份有限公司 | Dividing device for power output and pump drive power of tractor |
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| CN107091302B (en) * | 2017-06-07 | 2023-04-25 | 吉林大学 | 16+16 full power gear shifting and reversing gearbox |
| CN107084230A (en) * | 2017-06-09 | 2017-08-22 | 吉林大学 | 16+16 full powers are shifted gears and commutation gearbox |
| CN107084230B (en) * | 2017-06-09 | 2023-05-23 | 吉林大学 | 16+16 full power gear shifting and reversing gearbox |
| CN107804163A (en) * | 2017-11-27 | 2018-03-16 | 吉林大学 | A kind of full power gearshift and commutation gear box of tractor |
| CN107804163B (en) * | 2017-11-27 | 2023-11-10 | 吉林大学 | Full power gear shifting and reversing tractor gearbox |
| CN110469639A (en) * | 2019-08-29 | 2019-11-19 | 河南科技大学 | A kind of tractor full power power-shift gear box |
| CN112664624A (en) * | 2020-12-07 | 2021-04-16 | 第一拖拉机股份有限公司 | Gearbox of 40F +40R power gear-shifting tractor |
| CN112984055A (en) * | 2021-05-12 | 2021-06-18 | 常州华创航空科技有限公司 | Transmission and tractor |
| CN112984055B (en) * | 2021-05-12 | 2021-09-03 | 常州华创航空科技有限公司 | Transmission and tractor |
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Application publication date: 20150624 |