CN201350838Y - Loaded shifting and loaded reversing transmission device for tractors - Google Patents
Loaded shifting and loaded reversing transmission device for tractors Download PDFInfo
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- CN201350838Y CN201350838Y CNU2009200885940U CN200920088594U CN201350838Y CN 201350838 Y CN201350838 Y CN 201350838Y CN U2009200885940 U CNU2009200885940 U CN U2009200885940U CN 200920088594 U CN200920088594 U CN 200920088594U CN 201350838 Y CN201350838 Y CN 201350838Y
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Abstract
A loaded shifting and loaded reversing transmission device for tractors comprises 4 parts: a loaded shifting gear change mechanism, a loaded reversing transmission device, a crawling gear and oil pump driving transmission device, and a section shift speed changing device. The engine power can be delivered to a rear axle, a front axle and a PTO (power take-off) device, and a hydraulic oil pump can be installed. The whole transmission device comprises 4 loaded shifting gears, 6 synchronizer shifting gears and a crawling shift gear, and can conduct loaded reverse. A total of 80 gears which comprise 40 forward gears and 40 backward gears can be formed, with the speed ranging from 0.3km/h to 50km/h, wherein both the loaded shifting gears and loaded reversing gears adopt electronic control for gear shifting.
Description
(1) technical field
The utility model belongs to the trac. field, relates to a kind of trac. bringing onto load gearshift and load-commutated driving device.
(2) background technology
Present homemade large power wheel tractor change speed gear box adopts mechanical changeover modes such as shift sleeve, synchro more, need during the trac. gearshift to separate master clutch combustion cutoff power earlier, and then change to the gear that needs, it is slower to shift gears, influence operating efficiency, but the manufacturing cost of corresponding change speed gear box is lower.And external large power wheel tractor adopts the load manual transmission more, when promptly shifting gears not combustion cutoff power directly carry out gear shift operation, gearshift efficient height.External used with tractor load manual transmission mainly contains two kinds of structural shapes, and a kind of is planetary transmission, and another kind is a dead axle transmission.Planetary transmission load manual transmission part number is few, axial dimension is little, compact conformation, but each planet row is assembled and mutual latching relation etc. influences, and is difficult to obtain desirable speed ratio, and planet row difficulty of processing is big simultaneously, the manufacturing cost height.Dead axle transmission load manual transmission part number is many, and axial dimension is bigger, and each gear speed ratio is adjusted more convenient, but still exists manufacture difficulty height, weak point that cost is high.Yet, different work operating mode according to trac., as ploughing, sowing, transportation etc., the operating speed that each operating mode is needed is summed up as a section, in this section, adopt the load gearshift, adopt the synchro gearshift between section and the section, but the shift gears advantage of modes of comprehensive mechanical and two kinds of loads then, can guaranteed efficiency can reduce manufacturing cost again, it is possible developing a kind of like this driving device.
(3) summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, multiple functional, driving efficiency is high, the gearshift of low cost of manufacture, bringing onto load and load-commutated trac. driving device.
The technical solution of the utility model is: trac. bringing onto load gearshift and load-commutated driving device mainly comprise load power-shift gear box 1, load-commutated driving device 2, creep retaining and oil pump drive transmission 3, section power-shift gear box 4.Load power-shift gear box 1, load-commutated driving device 2, creep the retaining and oil pump drive transmission 3, section power-shift gear box 4 be arranged in order, wherein load power-shift gear box 1 one ends link to each other with tractor engine, and section power-shift gear box 4 one ends link to each other with tractor rear axle.A S1 and two S2 are installed in the load power-shift gear box 1, in the load-commutated driving device 2 three S3 and reverse shaft 14 are installed, creep to be equipped with to creep in retaining and the oil pump drive transmission 3 and keep off idler shaft 18 and oil pump actuating device 17, tween drive shaft S3a, output shaft S4 and four wheel drive output shaft S5 are installed in the section power-shift gear box 4, wherein tween drive shaft S3a and three S3 axle center are on same straight line, and the axial connecting line of the S1 that looks from tractor rear axle toward the driving engine direction, two S2, three S3 and output shaft S4 becomes Z-shaped layout.
In load power-shift gear box 1, be socketed with left shift clutch B, right shift clutch A, low gear driving gear 9 on one, be connected with high gear driving gear 5 and oil pump driving driving gear 16 by spline, left side shift clutch B can be connected with high gear driving gear 5 according to control command, right shift clutch A can be connected with low gear driving gear 9 according to control command, keeps off on the driving gear 7 during the clutch-bell cover of left shift clutch B and right shift clutch A is welded on jointly.Be socketed with high gear driven gear 6, left shift clutch C, right shift clutch D on two S2, be connected with low gear driven gear 10, constant-mesh driving gear 11 and the driving gear 13 that reverses gear by spline, left side shift clutch C can be connected with high gear driven gear 6 according to control command, right shift clutch can be connected with low gear driven gear 10 according to control command, keeps off on the driven gear 8 during the clutch-bell cover of left shift clutch C and right shift clutch D is welded on jointly.High gear driving gear 5, middle retaining driving gear 7 and low gear driving gear 9 on S1 is meshing with each other with high gear driven gear 6, middle retaining driven gear 8 and low gear driven gear 10 on two S2 respectively.
In load-commutated driving device 2, be socketed with constant-mesh driven gear 12 on three S3, driven gear 15 reverses gear, be connected with forward gear power-transfer clutch F, fall back and keep off power-transfer clutch R and creep retaining driving gear 19 by spline, wherein forward gear power-transfer clutch F can be connected with constant-mesh driven gear 12 according to control command, and the retaining power-transfer clutch R that falls back can be connected with the driven gear 15 that reverses gear according to control command.Reverse shaft 14 is a dual gear, and an end is meshing with each other with the driving gear 13 that reverses gear on two S2, and the other end is meshing with each other with the driven gear 15 that reverses gear.Constant-mesh driven gear 12 is meshing with each other with the constant-mesh driving gear 11 on two S2.
In creep retaining and oil pump drive transmission 3, oil pump actuating device 17 is installed in the casing side, and the oil pump driving driving gear 16 on the same axle S1 is meshing with each other.The retaining idler shaft 18 of creeping is double crosslinking gear shaft, and an end is meshing with each other with the retaining driving gear 19 of creeping on three S3, and the other end is meshing with each other with the retaining driven gear 21 of creeping in the section power-shift gear box 4.
In section power-shift gear box 4, be socketed with the retaining driven gear 21 of creeping on the tween drive shaft S3a, VI keeps off driving gear 25, V keeps off driving gear 28, IV keeps off driving gear 30, III keeps off driving gear 33, be connected with II retaining driving gear 35 and I retaining driving gear 37 by spline, the retaining shift sleeve 20 of creeping that can horizontally slip vertically and be connected with creep the retaining driving gear 19 or the retaining driven gear 21 of creeping to select also is installed on the tween drive shaft S3a, the V-VI retaining synchro 26 that can horizontally slip vertically and be connected with VI retaining driving gear 25 or V retaining driving gear 28 to select, the III-IV retaining synchro 31 that can horizontally slip vertically and be connected with IV retaining driving gear 30 or III retaining driving gear 33 to select.Output shaft S4 goes up and is connected with four wheel drive driving gear 22 by spline, with VI retaining driving gear 25 ingear VI retaining driven gear 24, with V retaining driving gear 28 ingear V retaining driven gear 27, with IV retaining driving gear 30 ingear IV retaining driven gear 29, with III retaining driving gear 33 ingear III retaining driven gear 32, be socketed with I retaining driving gear 37 ingear I retaining driven gear 36 and with II retaining driving gear 35 ingear II retaining driven gear 34, the I-II retaining synchro 38 that can horizontally slip vertically and be connected with I retaining driven gear 36 or II retaining driven gear 34 to select also is installed.Before driving output shaft S5 be installed in output shaft S4 under, above socket with the four wheel drive driven gear 23 that four wheel drive driving gear 22 is meshed, be connected with four wheel drive power-transfer clutch W.Four wheel drive power-transfer clutch W links together with four wheel drive driven gear 23, can separate according to control command.
In load power-shift gear box 1 and load-commutated driving device 2, left shift clutch B on S1 and right shift clutch A, two S2 go up left shift clutch C and right shift clutch D, forward gear power-transfer clutch F, the retaining power-transfer clutch R that falls back, be the multi-disc wet clutches of electrohydraulic control.
Four wheel drive power-transfer clutch W in section power-shift gear box 4 is a gerotor type electrohydraulic control multi-disc wet clutch.
The utility model can reach following good effect: the axial connecting line of, two, three and output shaft becomes Z-shaped layout in trac. bringing onto load gearshift and the load-commutated driving device, made full use of space in the casing, simultaneously because the bigger forward gear power-transfer clutch of installation dimension and the retaining power-transfer clutch that falls back three and that the shift gears tween drive shaft of each driving gear of section is installed is concentric, make main gear all concentrate on casing one side, can adopt asymmetric casing to make opposite side that the high-capacity trac. fuel tank of enough space mounting be arranged like this.
Left and right sides shift clutch in the load power-shift gear box on one and two adopts array mode in twos, controls it in conjunction with can realizing four retainings with separating by control program, and can realize senior function such as self shifter according to control program.Because be multi-disc wet clutch all, its parts can manufacture unified specification, according to the needs of transfer torque corresponding friction lining number are installed, and can guarantee that the moment of torsion transmission can reduce manufacturing cost again.
Load-commutated driving device has adopted the forward gear power-transfer clutch and the retaining power-transfer clutch that falls back, and can control its combination and separate opportunity according to control program on the one hand, realizes that bringing onto load changes the travel direction of trac.; When the section power-shift gear box in the back carries out gear shift operation on the other hand, the forward gear power-transfer clutch all can be used as master clutch with the retaining power-transfer clutch that falls back and uses, be equivalent to have two master clutchs, can improve its service life, when simultaneously the synchro in utilizing the section power-shift gear box of back carries out the section gearshift since power cut off herein, make the rotor inertia of fwd load power-shift gear box add less than on the synchro, reduce the load of synchro virtually, improved the service life of synchro.Particularly will be arranged in before the forward gear power-transfer clutch, and make the flexible leeway of whole transmission device increase greatly, can realize seriation easily with the constant-mesh driven gear that two last constant-mesh driving gears are meshed.As according to the requirement of coupling different capacity trac., only need to change the speed ratio of constant mesh gear pair and do not change and respectively keep off speed ratio in load power-shift gear box and the section power-shift gear box, can change the transmitting ratio of whole transmission device, convenient greatly the manufacturing and assembling.
Creep retaining and oil pump drive transmission between load-commutated driving device and section power-shift gear box, also close middle owing to being installed in the casing side for the oil pump actuating device, can arrange hydraulic oil pump and pipeline vertically forward or backward like this, make the oil pump maintenance more convenient.
In the section shift speed change transposition, use I-II, III-IV and V-VI retaining synchro can realize six section gearshift gears, V retaining and VI retaining main driven gear are near retaining and the oil pump drive arrangement of creeping simultaneously, articulating creeps can conveniently realize V retaining and the locking of VI retaining when keeping off, minimizing user misuse is creeped and kept off the possibility that transmission system damages when carrying out farming.The four wheel drive output shaft directly be arranged in output shaft under, make the four wheel drive power-transfer clutch be located immediately in the casing, can directly utilize the oil lubrication in the casing, do not need to establish in addition lubricating system.The four wheel drive power-transfer clutch is a gerotor type electrohydraulic control multi-disc wet clutch in addition, and just often promptly (control electromagnetic valve outage) power-transfer clutch is by the spring application combination, and trac. is a four wheel drive; Disengaging of clutch during the control electromagnetic valve energising, trac. is a two-wheel drive.Trac. can carry out four wheel drive all the time in the time of can guaranteeing like this that the trac. electric system has fault, guarantees the performance of tractive force.
Bringing onto load gearshift and load-commutated trac. driving device adopt this arrangement, and drive path is clear, and is simple in structure, can obtain more gear number simultaneously, also power can be transmitted to back axle, propons and PTO (power take-off shaft).By the combination of load power-shift gear box, load-commutated driving device, creep retaining and oil pump drive transmission and section power-shift gear box, whole drive system can realize 40 forward gears and 40 retainings that fall back.Speed range is from 0.3 kilometer/hour～50 kilometers/hour, satisfy of the requirement of domestic and international various trac. operation operating mode to speed, owing to adopted load gearshift and load-commutated technology, can under the condition of not cutting off the transmission of trac. power, carry out gear and travel direction conversion simultaneously.The gearshift mode adopts push-botton operation, and is easily quick, greatly improved the trac. operating efficiency, reduces chaufeur labour intensity.
(4) description of drawings
Fig. 1 is gearshift of the utility model trac. bringing onto load and load-commutated transmission structures schematic diagram.
Fig. 2 is the gearshift of the utility model trac. bringing onto load and each layout scheme drawing of load-commutated driving device.
(5) specific embodiment
Trac. bringing onto load gearshift and load-commutated driving device as shown in Figure 1 and Figure 2 comprise load power-shift gear box 1, load-commutated driving device 2, creep retaining and oil pump drive transmission 3, section power-shift gear box 4.Load power-shift gear box 1, load-commutated driving device 2, creep the retaining and oil pump drive transmission 3, section power-shift gear box 4 be arranged in order, wherein load power-shift gear box 1 one ends link to each other with tractor engine, and section power-shift gear box 4 one ends link to each other with tractor rear axle.A S1 and two S2 are installed in the load power-shift gear box 1, in the load-commutated driving device 2 three S3 and reverse shaft 14 are installed, creep and creep retaining idler shaft 18 and oil pump actuating device 17 are installed, installation tween drive shaft S3a, output shaft S4 and four wheel drive output shaft S5 in the section power-shift gear box 4 in retaining and the oil pump drive transmission 3.
In load power-shift gear box 1, be socketed with left shift clutch B, right shift clutch A, low gear driving gear 9 on the S1, be connected with high gear driving gear 5 and oil pump and drive driving gear 16, left side shift clutch B can be connected with high gear driving gear 5 according to control command, right shift clutch A can be connected with low gear driving gear 9 according to control command, retaining driving gear 7 during the clutch-bell cover of left shift clutch B and right shift clutch A is welded on jointly.Be socketed with high gear driven gear 6, left shift clutch C, right shift clutch D on two S2, be connected with low gear driven gear 10, constant-mesh driving gear 11 and the driving gear 13 that reverses gear, left side shift clutch C can be connected with high gear driven gear 6 according to control command, right shift clutch D can be connected with low gear driven gear 10 according to control command, retaining driven gear 8 during the clutch-bell cover of left shift clutch C and right shift clutch D is welded on jointly.
In load-commutated driving device 2, be socketed with constant-mesh driven gear 12 on three S3, driven gear 15 reverses gear, be connected with forward gear power-transfer clutch F, fall back and keep off power-transfer clutch R and creep retaining driving gear 19, wherein forward gear power-transfer clutch F can be connected with constant-mesh driven gear 12 according to control command, and the retaining power-transfer clutch R that falls back can be connected with the driven gear 15 that reverses gear according to control command.
In section power-shift gear box 4, be socketed with the retaining driven gear 21 of creeping on the tween drive shaft S3a, VI keeps off driving gear 25, V keeps off driving gear 28, IV keeps off driving gear 30, III keeps off driving gear 33, be connected with II retaining driving gear 35 and I retaining driving gear 37, the retaining shift sleeve 20 of creeping that can horizontally slip vertically and be connected with creep the retaining driving gear 19 or the retaining driven gear 21 of creeping to select also is installed on the tween drive shaft S3a, the V-VI retaining synchro 26 that can horizontally slip vertically and be connected with VI retaining driving gear 25 or V retaining driving gear 28 to select, the III-IV retaining synchro 31 that can horizontally slip vertically and be connected with IV retaining driving gear 30 or III retaining driving gear 33 to select.Be connected with four wheel drive driving gear 22, VI retaining driven gear 24, V retaining driven gear 27, IV retaining driven gear 29, III on the output shaft S4 and keep off driven gear 32, be socketed with I retaining driven gear 36 and, the I-II retaining synchro 38 that can horizontally slip vertically and be connected with I retaining driven gear 36 or II retaining driven gear 34 to select be installed also with II retaining driven gear 34.Be socketed with four wheel drive driven gear 23 on the before driving output shaft S5, be connected with four wheel drive power-transfer clutch W.Four wheel drive power-transfer clutch W links together with four wheel drive driven gear 23, can separate according to control command.
Engine power is input to and can transmits with the time-division three tunnel after a S1 goes up: adjust the trac. moving velocity but the first via enters load power-shift gear box 1 bringing onto load through high gear driving gear 5; The second the tunnel drives driving gear 16 through oil pump passes to the external hydraulic oil pump of oil pump actuating device 17 drivings, realizes that tractor hydraulic promotes or the fluid control function; Third Road can be directly delivered to the PTO device, drives tractor motive power output shaft.
The power that enters load power-shift gear box 1 through high gear driving gear 5 is according to a S1 last left shift clutch B, right shift clutch A, and the different conditions of two S2 last left shift clutch C, right shift clutch D can be realized 4 loads gearshift gears:
Low gear: S1 go up left shift clutch B and right shift clutch A in conjunction with and two S2 go up left shift clutch C and right shift clutch D separates, engine power is by a S1 → high gear driving gear 5 → left shift clutch B → middle retaining driving gear 7 → right shift clutch A → 10 → two S2 of low gear driving gear 9 → low gear driven gear.
Retaining in inferior: two S2 go up left shift clutch C and S1 go up right shift clutch A in conjunction with and S1 goes up left shift clutch B and two S2 and goes up right shift clutch D and separate, engine power is by a S1 → high gear driving gear 5 → left shift clutch C → middle retaining driven gear 8 → right shift clutch A → 10 → two S2 of low gear driving gear 9 → low gear driven gear.
In retaining: S1 go up left shift clutch B and two S2 go up right shift clutch D in conjunction with and two S2 go up left shift clutch C and a S1 and go up right shift clutch A and separate, engine power is by a S1 → high gear driving gear 5 → left shift clutch B → middle retaining driving gear 7 → middle retaining driven gear 8 → right shift clutch D → 10 → two S2 of low gear driven gear.
High gear: two S2 go up left shift clutch C and right shift clutch D in conjunction with and S1 goes up left shift clutch B and right shift clutch A separates, engine power is by a S1 → high gear driving gear 5 → left shift clutch C → middle retaining driven gear 8 → right shift clutch D → 10 → two S2 of low gear driven gear.
Engine power is delivered to after two S2 go up, and goes up forward gear power-transfer clutch F according to three S3 and realizes the forward gear or the retaining that falls back respectively with the bonding state of the retaining power-transfer clutch R that falls back under the bringing onto load state:
Forward gear: forward gear power-transfer clutch F in conjunction with and the retaining power-transfer clutch R that falls back separates, power is by two S2 → constant-mesh driving gear 11 → forward gear power-transfer clutch F → three S3.
Retaining falls back: forward gear power-transfer clutch F separates and the retaining power-transfer clutch R combination that falls back, and power is by the two S2 → driving gear 13 → reverse shaft 14 that the reverses gear → driven gear 15 that reverses gear → retaining power-transfer clutch R → three S3 fall back.
Power divides two-way transmission according to the position of the retaining shift sleeve of creeping after three S3 enter creep retaining and oil pump driving device 3:
Normal retaining: the retaining shift sleeve 20 of creeping slides left with the connection tooth engagement on the retaining driving gear 19 of creeping, and power is by the three S3 → retaining driving gear 19 of creeping → retaining shift sleeve 20 → tween drive shaft S3a creeps.
The retaining of creeping: the retaining shift sleeve 20 of creeping slides to the right with the connection tooth engagement on the retaining driven gear 21 of creeping, and power is by the three S3 → retaining driving gear 19 of the creeping → retaining idler shaft 18 of the creeping → retaining driven gear 21 of creeping → creep and keep off shift sleeve 20 → tween drive shaft S3a.
Power forms six retainings according to the position of I-II retaining synchro 38, III-IV retaining synchro 31, V-VI retaining synchro 26 after tween drive shaft S3a enters the section power-shift gear box:
The I retaining: I-II retaining synchro 38 slides to the right with the connection tooth engagement on the I retaining driven gear 36, and power is by tween drive shaft S3a → I retaining driving gear 37 → I retaining driven gear 36 → I-II retaining synchro 38 → output shaft S4.
The II retaining: I-II retaining synchro 38 slides left with the connection tooth engagement on the II retaining driven gear 34, and power is by tween drive shaft S3a → II retaining driving gear 35 → II retaining driven gear 34 → I-II retaining synchro 38 → output shaft S4.
The III retaining: III-IV retaining synchro 31 slides to the right with the connection tooth engagement on the III retaining driving gear 33, and power is by tween drive shaft S3a → III-IV retaining synchro 31 → III retaining driving gear 33 → III retaining driven gear 32 → output shaft S4.
The IV retaining: III-IV retaining synchro 31 slides left with the connection tooth engagement on the IV retaining driving gear 30, and power is by tween drive shaft S3a → III-IV retaining synchro 31 → IV retaining driving gear 30 → IV retaining driven gear 29 → output shaft S4.
The V retaining: V-VI retaining synchro 26 slides to the right with the connection tooth engagement on the V retaining driving gear 28, and power is by tween drive shaft S3a → V-VI retaining synchro 26 → V retaining driving gear 28 → V retaining driven gear 27 → output shaft S4.
The VI retaining: V-VI retaining synchro 26 slides left with the connection tooth engagement on the VI retaining driving gear 25, and power is by tween drive shaft S3a → V-VI retaining synchro 26 → VI retaining driving gear 25 → VI retaining driven gear 24 → output shaft S4.
In addition, in creep retaining and oil pump driving device 3 when creeping the retaining state, because synchro 26 lockings (promptly can not operate) of V-VI retaining can only realize that I retaining, II retaining, III retaining and IV keep off totally four retainings.
Transmission of power is determined four wheel drive and two-wheel drive according to the state of four wheel drive power-transfer clutch W behind output shaft S4:
Four wheel drive: W is inoperative for the four wheel drive power-transfer clutch, power one route output shaft S4 is delivered to back axle, and another road is simultaneously by output shaft S4 → four wheel drive driving gear 22 → four wheel drive driven gear 23 → four wheel drive power-transfer clutch W → before driving output shaft S5 → propons.
Two-wheel drive: four wheel drive power-transfer clutch W works, and the direct route output shaft S4 of power is delivered to back axle.
Integrate like this, during for normal retaining state, trac. can obtain 24 forward gears and 24 retainings that fall back in trac. is creeped retaining and oil pump driving device 3; Trac. can obtain 16 forward gears and 16 retainings that fall back when creeping the retaining state in trac. is creeped retaining and oil pump driving device 3, and the whole trac. of adding up can be realized 40 forward gears and 40 retainings that fall back.
Claims (7)
1. a trac. bringing onto load is shifted gears and load-commutated driving device, mainly comprise: load power-shift gear box (1), load-commutated driving device (2), creep and keep off and oil pump drive transmission (3), section power-shift gear box (4), it is characterized in that: load power-shift gear box (1), load-commutated driving device (2), creep and keep off and oil pump drive transmission (3), section power-shift gear box (4) is arranged in order, wherein load power-shift gear box (1) one end links to each other with tractor engine, section power-shift gear box (4) one ends link to each other with tractor rear axle, one (S1) and two (S2) is installed in the load power-shift gear box (1), three (S3) and reverses shaft (14) are installed in the load-commutated driving device (2), creep to be equipped with to creep in retaining and the oil pump drive transmission (3) and keep off idler shaft (18) and oil pump actuating device (17), tween drive shaft (S3a) is installed in the section power-shift gear box (4), output shaft (S4) and four wheel drive output shaft (S5), wherein tween drive shaft (S3a) and three (S3) axle center are on same straight line, from tractor rear axle to driving engine direction look one (S1), two (S2), the axial connecting line of three (S3) and output shaft (S4) becomes Z-shaped layout.
2. trac. bringing onto load gearshift according to claim 1 and load-commutated driving device, it is characterized in that: in load power-shift gear box (1), be socketed with left shift clutch (B) on one (S1), right shift clutch (A), low gear driving gear (9), be connected with high gear driving gear (5) and oil pump driving driving gear (16) by spline, left side shift clutch (B) can be connected with high gear driving gear (5) according to control command, right shift clutch (A) can be connected with low gear driving gear (9) according to control command, keep off on the driving gear (7) during the clutch-bell cover of left side shift clutch (B) and right shift clutch (A) is welded on jointly, be socketed with high gear driven gear (6) on two (S2), left side shift clutch (C), right shift clutch (D), be connected with low gear driven gear (10) by spline, constant-mesh driving gear (11) and the driving gear that reverses gear (13), left side shift clutch (C) can be connected with high gear driven gear (6) according to control command, right shift clutch (D) can be connected with low gear driven gear (10) according to control command, during being welded on jointly, keeps off the clutch-bell cover of left side shift clutch (C) and right shift clutch (D) on the driven gear (8) the high gear driving gear (5) on (S1), middle retaining driving gear (7) and low gear driving gear (9) are respectively with the high gear driven gear (6) on two (S2), middle retaining driven gear (8) and low gear driven gear (10) are meshing with each other.
3. trac. bringing onto load gearshift according to claim 1 and load-commutated driving device, it is characterized in that: in load-commutated driving device (2), be socketed with constant-mesh driven gear (12) on three (S3), driven gear (15) reverses gear, be connected with forward gear power-transfer clutch (F) by spline, the retaining power-transfer clutch (R) and the retaining driving gear (19) of creeping fall back, wherein forward gear power-transfer clutch (F) can be connected with constant-mesh driven gear (12) according to control command, the retaining power-transfer clutch (R) that falls back can be connected with the driven gear (15) that reverses gear according to control command, reverse shaft (14) is a dual gear, one end is meshing with each other with the driving gear that reverses gear (13) on two (S2), the other end is meshing with each other with the driven gear (15) that reverses gear, and constant-mesh driven gear (12) is meshing with each other with the constant-mesh driving gear (11) on two (S2).
4. trac. bringing onto load gearshift according to claim 1 and load-commutated driving device, it is characterized in that: in creep retaining and oil pump drive transmission (3), oil pump actuating device (17) is installed in the casing side, and the driving driving gear of the oil pump on the same axle (S1) (16) is meshing with each other.The retaining idler shaft (18) of creeping is double crosslinking gear shaft, and an end is meshing with each other with the retaining driving gear (19) of creeping on three (S3), and the other end is meshing with each other with the retaining driven gear (21) of creeping in the section power-shift gear box (4).
5. trac. bringing onto load gearshift according to claim 1 and load-commutated driving device, it is characterized in that: in section power-shift gear box (4), be socketed with the retaining driven gear (21) of creeping on the tween drive shaft (S3a), 6 retaining driving gears (25), 5 retaining driving gears (28), 4 retaining driving gears (30), 3 retaining driving gears (33), be connected with 2 retaining driving gears (35) and 1 retaining driving gear (37) by spline, the retaining shift sleeve (20) of creeping that can horizontally slip vertically and be connected with creep the retaining driving gear (19) or the retaining driven gear (21) of creeping to select also is installed on the tween drive shaft (S3a), can horizontally slip vertically with the 5-6 retaining synchro of selecting to be connected (26) with 6 retaining driving gears (25) or 5 retaining driving gears (28), can horizontally slip vertically with the 3-4 retaining synchro of selecting to be connected (31) with 4 retaining driving gears (30) or 3 retaining driving gears (33), output shaft (S4) is gone up and is connected with four wheel drive driving gear (22) by spline, with 6 retaining driving gear (25) ingears, 6 retaining driven gears (24), with 5 retaining driving gear (28) ingears, 5 retaining driven gears (27), with 4 retaining driving gear (30) ingears, 4 retaining driven gears (29), with 3 retaining driving gear (33) ingears, 3 retaining driven gears (32), be socketed with 1 retaining driving gear (37) ingear 1 retaining driven gear (36) and with 2 retaining driving gear (35) ingears, 2 retaining driven gears (34), the 1-2 retaining synchro (38) that can horizontally slip vertically to select to be connected with 1 retaining driven gear (36) or 2 retaining driven gears (34) also is installed, before driving output shaft (S5) be installed in output shaft (S4) under, the four wheel drive driven gear (23) that top socket is meshed with four wheel drive driving gear (22), be connected with four wheel drive power-transfer clutch (W), four wheel drive power-transfer clutch (W) links together with four wheel drive driven gear (23), can separate according to control command.
6. according to claim 2 and 3 described trac. bringing onto load gearshift and load-commutated drivings device, it is characterized in that: the multi-disc wet clutch that left shift clutch (B) on (S1) and right shift clutch (A), two (S2) go up left shift clutch (C) and right shift clutch (D), forward gear power-transfer clutch (F), the retaining power-transfer clutch (R) that falls back is electrohydraulic control.
7. trac. bringing onto load gearshift according to claim 5 and load-commutated driving device, it is characterized in that: four wheel drive power-transfer clutch (W) is a gerotor type electrohydraulic control multi-disc wet clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200885940U CN201350838Y (en) | 2009-02-19 | 2009-02-19 | Loaded shifting and loaded reversing transmission device for tractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200885940U CN201350838Y (en) | 2009-02-19 | 2009-02-19 | Loaded shifting and loaded reversing transmission device for tractors |
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| Publication Number | Publication Date |
|---|---|
| CN201350838Y true CN201350838Y (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200885940U Expired - Lifetime CN201350838Y (en) | 2009-02-19 | 2009-02-19 | Loaded shifting and loaded reversing transmission device for tractors |
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| CN (1) | CN201350838Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486313B (en) * | 2009-02-19 | 2011-08-17 | 中国一拖集团有限公司 | Load shift of tractor and load reversing transmission gear |
| CN102808903A (en) * | 2011-06-01 | 2012-12-05 | 北京理工大学 | Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle |
| CN104648137A (en) * | 2015-02-11 | 2015-05-27 | 第一拖拉机股份有限公司 | Power reversing tractor transmission system of main clutch between main speed variator and auxiliary speed variator |
| CN106704497A (en) * | 2016-11-17 | 2017-05-24 | 河南科技大学 | Double-clutch transmission used in multi-gear tractor |
| CN108691978A (en) * | 2017-06-30 | 2018-10-23 | 重庆大学 | Auto-manual power shifting drive commutation transmission case |
-
2009
- 2009-02-19 CN CNU2009200885940U patent/CN201350838Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486313B (en) * | 2009-02-19 | 2011-08-17 | 中国一拖集团有限公司 | Load shift of tractor and load reversing transmission gear |
| CN102808903A (en) * | 2011-06-01 | 2012-12-05 | 北京理工大学 | Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle |
| CN102808903B (en) * | 2011-06-01 | 2015-01-28 | 北京理工大学 | Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle |
| CN104648137A (en) * | 2015-02-11 | 2015-05-27 | 第一拖拉机股份有限公司 | Power reversing tractor transmission system of main clutch between main speed variator and auxiliary speed variator |
| CN104648137B (en) * | 2015-02-11 | 2017-09-12 | 第一拖拉机股份有限公司 | Power commutation Tractor Power Train of the main clutch between major-minor variable speed device |
| CN106704497A (en) * | 2016-11-17 | 2017-05-24 | 河南科技大学 | Double-clutch transmission used in multi-gear tractor |
| CN108691978A (en) * | 2017-06-30 | 2018-10-23 | 重庆大学 | Auto-manual power shifting drive commutation transmission case |
| CN108691978B (en) * | 2017-06-30 | 2019-10-11 | 重庆大学 | Auto-manual power shifting drive commutation transmission case |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091125 Effective date of abandoning: 20090219 |