A kind of change speed gear box of agri-vehicle
Technical field
This utility model belongs to technical field of agricultural mechanical equipment, particularly to the change speed gear box of a kind of agri-vehicle.
Background technology
Current agricultural change speed gear box great majority are that transformation forms or completely on the basis of agricultural transportation vehicle or tractor
Use.The change speed gear box of agricultural transport vehicle belongs to higher speed gear case, it is difficult to meet the low-speed big requirement of agricultural operation;Tractor
Low-speed big characteristic excessively focused on by the change speed gear box of type, and gearbox designs is complicated, and weight is big, relatively costly, is not suitable for light-duty
The requirement of agriculture working vehicle.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, it is provided that the change speed gear box of a kind of agri-vehicle, solves
The change speed gear box gearshift performance of current agri-vehicle is not suitable for the technical problem using requirement, vehicle to travel poor reliability.
This utility model is achieved through the following technical solutions:
A kind of change speed gear box of agri-vehicle, including: change speed gear box and clutch, it is characterized in that: the output shaft of described change speed gear box
Being divided into front power output shaft and rear power output shaft, front power output shaft is provided with clutch, rear power output shaft is with agricultural
The drive axle of vehicle connects;
Described change speed gear box is provided with main shift control bar and transfer shelves stick, and described main shift control bar main file position is provided with
3 drive shifts and 1 backward gear, described transfer shelves stick is provided with 2 transfer gears at the outfan of change speed gear box, passes through transfer
The 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and 2 backward gears by shelves stick, and realize
Gear shift;
Described change speed gear box includes that gear box casing, housing internal upper part are provided with power shaft, and in housing, bottom is depended on by left-to-right
Secondary it is provided with output shaft, jackshaft and reversing shaft.
Further, described reversing shaft is disposed with: Z31 back gear, Z32 reverse driving gear;
Z11 mono-grade/reverse gear shifting gear, Z12 bis-grades/third gear shifting gear group, institute it is disposed with on described power shaft
Bis-grades of shifting gears of Z121 and Z122 third gear shifting gear is included in stating Z12 bis-grades/third gear shifting gear group;
It is disposed with on described jackshaft: Z21 reverse gear driven gear, Z22 first speed driven gear, bis-grades of driven tooth of Z23
Wheel, one grade of driving gear of Z24 transfer, Z25 third gear driven gear, two grades of driving gears of Z26 transfer;
It is disposed with on described output shaft: Z41 transfer driven tooth wheels, includes in described Z41 transfer driven tooth wheels
Z411 transfer first speed driven gear, two grades of driven gears of Z412 transfer;
The gear arranged on jackshaft and reversing shaft is all fixedly mounted on axle, and each gear and axle are all without relative motion, Z32
Reverse driving gear and Z21 reverse gear driven gear are normal meshing relation;
The Z11 mono-grade/reverse gear shifting gear that described main shift control bar is stirred on power shaft slides in the axial direction, can be real
Existing Z11 mono-grade/reverse gear shifting gear and Z31 back gear engage or Z11 mono-grade/reverse gear shifting gear and Z22 mono-grade from
The engagement of moving gear;
The Z12 bis-grades/third gear shifting gear group that described main shift control bar is stirred on power shaft is slided in the axial direction, can
Realize bis-grades of shifting gears of Z121 and bis-grades of driven gears of Z23 engage or Z122 third gear hangs shelves tooth and Z25 third gear driven tooth
The engagement of wheel;
The Z41 transfer driven tooth wheels that described transfer shelves stick is stirred on output shaft slide in the axial direction, can realize
Engaging or two grades of driven gears of Z412 transfer and Z26 of one grade of driving gear of Z411 transfer first speed driven gear and Z24 transfer
The engagement of two grades of driving gears of transfer.
Further, described main shift control bar is stirred Z11 mono-grade/reverse gear shifting gear and is meshed with Z31 back gear, defeated
Entering axle drives reversing shaft to rotate, Z32 reverse driving gear and Z31 back gear synchronous axial system;Z32 reverse driving gear and Z21
Reverse gear driven gear engages, and Z21 reverse gear driven gear and one grade of driving gear of Z24 transfer are coaxial transmission, one grade of master of Z24 transfer
Moving gear engages with Z411 transfer first speed driven gear, drives output shaft to rotate, it is achieved one grade of transfer transmission of reverse gear;
Described main shift control bar is stirred Z11 mono-grade/reverse gear shifting gear and is meshed with Z31 back gear, and power shaft drives
Dynamic reversing shaft rotates, Z32 reverse driving gear and Z31 back gear synchronous axial system;Z32 reverse driving gear and Z21 reverse gear from
Moving gear engages, and Z21 reverse gear driven gear and two grades of driving gears of Z26 transfer are coaxial transmission, two grades of driving gears of Z26 transfer
Engage with two grades of driven gears of Z412 transfer, drive output shaft to rotate, it is achieved two grades of transfer transmissions of reverse gear;
Described main shift control bar is stirred Z11 mono-grade/reverse gear shifting gear and is meshed with Z22 first speed driven gear, drives
Jackshaft rotates, and Z22 first speed driven gear and one grade of driving gear of Z24 transfer are coaxial transmission, one grade of driving gear of Z24 transfer
Engage with Z411 transfer first speed driven gear, drive output shaft to rotate, it is achieved one grade of one grade of transfer transmission;
Described main shift control bar is stirred Z11 mono-grade/reverse gear shifting gear and is meshed with Z22 first speed driven gear, drives
Jackshaft rotates, and Z22 first speed driven gear and two grades of driving gears of Z26 transfer are coaxial transmission, two grades of driving gears of Z26 transfer
Engage with two grades of driven gears of Z412 transfer, drive output shaft to rotate, it is achieved one grade of two grades of transfer transmission;
Described main shift control bar is stirred bis-grades of driven gears of bis-grades of shifting gears of Z121 and Z23 and is meshed, and drives middle
Axle rotates, and bis-grades of driven gears of Z23 and one grade of driving gear of Z24 transfer are coaxial transmission, one grade of driving gear of Z24 transfer with
Z411 transfer first speed driven gear engages, and drives output shaft to rotate, it is achieved two grades of one grade of transfer transmissions;
Described main shift control bar is stirred bis-grades of driven gears of bis-grades of shifting gears of Z121 and Z23 and is meshed, and drives middle
Axle rotates, and bis-grades of driven gears of Z23 and two grades of driving gears of Z26 transfer are coaxial transmission, two grades of driving gears of Z26 transfer with
The two grades of driven gear engagements of Z412 transfer, drive output shaft to rotate, it is achieved two grades of two grades of transfer transmissions;
Described main shift control bar is stirred Z122 third gear shifting gear and is meshed with Z25 third gear driven gear, drives middle
Axle rotates, and Z25 third gear driven gear and one grade of driving gear of Z24 transfer are coaxial transmission, one grade of driving gear of Z24 transfer with
Z411 transfer first speed driven gear engages, and drives output shaft to rotate, it is achieved one grade of transfer transmission of third gear;
Described main shift control bar is stirred Z122 third gear shifting gear and is meshed with Z25 third gear driven gear, drives middle
Axle rotates, and Z25 third gear driven gear and two grades of driving gears of Z26 transfer are coaxial transmission, two grades of driving gears of Z26 transfer with
The two grades of driven gear engagements of Z412 transfer, drive output shaft to rotate, it is achieved two grades of transfer transmissions of third gear.
Further, described clutch is made up of driven by clutches assembly, control rod assembly and clutch-pedal support, described clutch
Device drive assembly is made up of base, spring, drive end and driven end, and base is fixed on front power output shaft, and drive end is arranged
Anterior at base, drive end is connected by spline with front power output shaft, and can slide in the axial direction, and spring is arranged on the end
Seat and the centre position of drive end, it is anterior that driven end is arranged on drive end, and is fixed on front power output shaft by bearing, main
Moved end contacts end face and is respectively arranged with intermeshing tooth with driven end, and drive end can be along front power output shaft to driven end
Sliding, drive end outer rim is provided with cannelure, and clutch-pedal support is arranged on gear box casing;Described clutch-pedal support includes top
Plate, top board both sides of the edge are provided perpendicular to the fixed plate of top board, and top board is provided with two different B shape slotted eyes of length, Gu
Determine plate bottom and be provided with pin-and-hole;The stick of control rod assembly passes B shape slotted eye, and the upper end of stick is provided with handball, lower end
Being provided with horizontal pin-and-hole, be provided with shift fork head below stick, shift fork head lower end is provided with the cannelure phase with described drive end
The projection coordinated, shift fork head is provided with No. I hole and No. II hole, and the axis in No. I hole and No. II hole is mutually perpendicular to, and No. II hole is arranged
Above No. I hole, No. I hole is connected by bearing pin with the pin-and-hole of fixed plate bottom, and No. II hole and horizontal pin-and-hole are connected by bearing pin.
Transmission range compared with prior art, owing to adding the design of transfer gear, is added one times by this utility model,
Improve farm machinery adaptability in the course of the work and reliability, front-wheel drive is provided with clutch system, it is achieved front-wheel drive
Cut-out and combination so that the road surface adaptability of vehicle increases, and contributes to the raising of farm machinery work efficiency.
This utility model is used for agricultural vehicle, has that road pavement conformability is good, stability is high, can meet agricultural operation
The advantage of the multiple performance requirement of vehicle.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is right view of the present utility model;
Fig. 3 is gear structure inside schematic diagram of the present utility model;
Fig. 4 is this utility model driven by clutches assembly structure schematic diagram;
Fig. 5 is this utility model clutch component exploded perspective view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described.
Embodiment 1:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, including: change speed gear box and clutch, wherein: described speed change
The output shaft 3 of case 2 is divided into front power output shaft 3-1 and rear power output shaft 3-2, and front power output shaft 3-1 is provided with clutch
Device 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box 2 is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5 master
Gear is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfer shelves at the outfan of change speed gear box
Position, can be further separated into 6 drive shifts and 2 by the 3 of main file position drive shift and 1 backward gear by transfer shelves stick 2-6
Individual backward gear, and realize gear shift;
Described change speed gear box 2 includes that gear box casing 2-7, housing 2-7 internal upper part arrange power shaft 2-1, bottom in housing 2-7
Output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3 is set gradually by left-to-right;
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 phase
Engagement, power shaft drives reversing shaft to rotate, Z32 reverse driving gear 2-3-2 and Z31 back gear 2-3-1 synchronous axial system;Z32
Reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 engages, Z21 reverse gear driven gear 2-2-1 and Z24 transfer one grade
Driving gear 2-2-4 is coaxial transmission, and one grade of driving gear 2-2-4 and Z411 transfer first speed driven gear 2-4-1 of Z24 transfer nibbles
Close, drive output shaft to rotate, it is achieved one grade of transfer transmission of reverse gear.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 2:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;Described change speed gear box be provided with main shift control bar 2-5 and
Transfer shelves stick 2-6, described main shift control bar 2-5 main file position is provided with 3 drive shifts and 1 backward gear, described transfer shelves
Stick 2-6 is provided with 2 transfer gears at the outfan of change speed gear box, can be by before the 3 of main file position by transfer shelves stick 2-6
Enter shelves and 1 backward gear is further separated into 6 drive shifts and 2 backward gears, and realize gear shift;
Under described change speed gear box includes that gear box casing 2-7, housing 2-7 internal upper part are provided with in power shaft 2-1, housing 2-7
Portion is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3 by left-to-right.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 phase
Engagement, power shaft drives reversing shaft to rotate, Z32 reverse driving gear 2-3-2 and Z31 back gear 2-3-1 synchronous axial system;Z32
Reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 engages, Z21 reverse gear driven gear 2-2-1 and Z26 transfer two grades
Driving gear 2-2-6 is coaxial transmission, and Z26 transfer two grades of driven gear 2-4-2 of two grades of driving gear 2-2-6 and Z412 transfers nibble
Close, drive output shaft to rotate, it is achieved two grades of transfer transmissions of reverse gear.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 3:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5
Main file position is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfers at the outfan of change speed gear box
Gear, by transfer shelves stick 2-6 the 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and
2 backward gears, and realize gear shift;
Described change speed gear box includes that gear box casing 2-7, housing internal upper part are provided with power shaft 2-1, in housing 2-7 bottom by
Left-to-right it is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z22 first speed driven gear 2-2-
2 are meshed, and drive jackshaft to rotate, and Z22 one grade of driving gear 2-2-4 of first speed driven gear 2-2-2 and Z24 transfer is coaxial biography
Dynamic, one grade of driving gear 2-2-4 and Z411 transfer first speed driven gear 2-4-1 of Z24 transfer engages, and drives output shaft to rotate, real
Existing one grade of one grade of transfer transmission.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 4:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5
Main file position is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfers at the outfan of change speed gear box
Gear, by transfer shelves stick 2-6 the 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and
2 backward gears, and realize gear shift;
Described change speed gear box includes that gear box casing 2-7, housing internal upper part are provided with power shaft 2-1, in housing 2-7 bottom by
Left-to-right it is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z22 first speed driven gear 2-2-
2 are meshed, and drive jackshaft to rotate, and Z22 two grades of driving gear 2-2-6 of first speed driven gear 2-2-2 and Z26 transfer are coaxial biography
Dynamic, Z26 transfer two grades of driven gear 2-4-2 of two grades of driving gear 2-2-6 and Z412 transfers engage, and drive output shaft to rotate, real
Existing one grade of two grades of transfer transmission.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 5:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5
Main file position is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfers at the outfan of change speed gear box
Gear, by transfer shelves stick 2-6 the 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and
2 backward gears, and realize gear shift;
Described change speed gear box includes that gear box casing 2-7, housing internal upper part are provided with power shaft 2-1, in housing 2-7 bottom by
Left-to-right it is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs bis-grades of driven gear 2-2-3 phases of bis-grades of shifting gear 2-1-2 with Z23 of Z121
Engagement, drives jackshaft to rotate, and bis-grades of driven gear 2-2-3 of Z23 and one grade of driving gear 2-2-4 of Z24 transfer is coaxial transmission,
One grade of driving gear 2-2-4 and Z411 transfer first speed driven gear 2-4-1 of Z24 transfer engages, and drives output shaft to rotate, it is achieved two
One grade of transfer transmission of shelves.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 6:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5
Main file position is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfers at the outfan of change speed gear box
Gear, by transfer shelves stick 2-6 the 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and
2 backward gears, and realize gear shift;
Described change speed gear box includes that gear box casing 2-7, housing internal upper part are provided with power shaft 2-1, bottom in housing 2-7
It is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3 by left-to-right.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs bis-grades of driven gear 2-2-3 phases of bis-grades of shifting gear 2-1-2 with Z23 of Z121
Engagement, drives jackshaft to rotate, and bis-grades of driven gear 2-2-3 of Z23 and two grades of driving gear 2-2-6 of Z26 transfer are coaxial transmission,
Z26 transfer two grades of driven gear 2-4-2 of two grades of driving gear 2-2-6 and Z412 transfers engage, and drive output shaft to rotate, it is achieved two
Two grades of transfer transmissions of shelves.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 7:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5
Main file position is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfers at the outfan of change speed gear box
Gear, by transfer shelves stick 2-6 the 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and
2 backward gears, and realize gear shift;
Described change speed gear box includes that gear box casing 2-7, housing internal upper part are provided with power shaft 2-1, in housing 2-7 bottom by
Left-to-right it is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
The gear arranged on jackshaft 2-2 and reversing shaft 2-3 is all fixedly mounted on axle, and each gear is all transported without relative with axle
Dynamic, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs Z122 third gear shifting gear 2-1-3 and Z25 third gear driven gear 2-2-5 phase
Engagement, drives jackshaft to rotate, and Z25 third gear driven gear 2-2-5 and one grade of driving gear 2-2-4 of Z24 transfer is coaxial transmission,
One grade of driving gear 2-2-4 and Z411 transfer first speed driven gear 2-4-1 of Z24 transfer engages, and drives output shaft to rotate, it is achieved three
One grade of transfer transmission of shelves.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
Embodiment 8:
As shown in Figures 1 to 5, the change speed gear box of a kind of agri-vehicle, it includes change speed gear box and clutch, wherein: described change
Speed case 2 output shaft 3 be divided into front power output shaft 3-1 and rear power output shaft 3-2, front power output shaft 3-1 is provided with from
Clutch 1, rear power output shaft 3-2 is connected with the drive axle of agri-vehicle;
Described change speed gear box is provided with main shift control bar 2-5 and transfer shelves stick 2-6, described main shift control bar 2-5
Main file position is provided with 3 drive shifts and 1 backward gear, and described transfer shelves stick 2-6 is provided with 2 transfers at the outfan of change speed gear box
Gear, by transfer shelves stick 2-6 the 3 of main file position drive shift and 1 backward gear can be further separated into 6 drive shifts and
2 backward gears, and realize gear shift;
Described change speed gear box includes that gear box casing 2-7, housing internal upper part are provided with power shaft 2-1, in housing 2-7 bottom by
Left-to-right it is disposed with output shaft 2-4, jackshaft 2-2 and reversing shaft 2-3.
It is disposed with on described reversing shaft 2-3: Z31 back gear 2-3-1, Z32 reverse driving gear 2-3-2;
It is disposed with on described power shaft 2-1: Z11 mono-grade/reverse gear, bis-grades/third gear of shifting gear 2-1-1, Z12 hangs shelves
Gear train, includes in described Z12 bis-grades/third gear shifting gear group that bis-grades of shifting gear 2-1-2 of Z121 and Z122 third gear hang shelves tooth
Wheel 2-1-3;
It is disposed with on described jackshaft 2-2: Z21 reverse gear driven gear 2-2-1, Z22 first speed driven gear 2-2-2,
One grade of driving gear 2-2-4, Z25 third gear driven gear 2-2-5, Z26 transfer two of bis-grades of driven gear 2-2-3, Z24 transfers of Z23
Shelves driving gear 2-2-6;
It is disposed with on described output shaft 2-4: Z41 transfer driven tooth wheels, bag in described Z41 transfer driven tooth wheels
Include Z411 transfer two grades of driven gear 2-4-2 of first speed driven gear 2-4-1, Z412 transfer;
On jackshaft 2-2 and reversing shaft 2-3 arrange gear be all fixedly mounted on axle, each gear with axle all without relative
Motion, Z32 reverse driving gear 2-3-2 and Z21 reverse gear driven gear 2-2-1 is normal meshing relation;
Described main shift control bar 2-5 stirs the Z11 mono-grade/reverse gear shifting gear 2-1-1 on power shaft 2-1 along axis side
To slip, engaging or Z11 mono-grade/fall of Z11 mono-grade/reverse gear shifting gear 2-1-1 and Z31 back gear 2-3-1 can be realized
Shelves shifting gear 2-1-1 and Z22 first speed driven gear 2-2-2 engages;
Described main shift control bar 2-5 stirs the Z12 bis-grades/third gear shifting gear group on power shaft 2-1 in the axial direction
Slide, engaging or Z122 third gear extension shelves of Z121 bis-grades of driven gear 2-2-3 of bis-grades of shifting gear 2-1-2 with Z23 can be realized
Gear 2-1-3 and Z25 third gear driven gear 2-2-5 engages;
The Z41 transfer driven tooth wheels that described transfer shelves stick 2-6 stirs on output shaft 2-4 slide in the axial direction,
Engaging or Z412 transfer two of Z411 transfer first speed driven gear 2-4-1 and Z24 one grade of driving gear 2-2-4 of transfer can be realized
Shelves driven gear 2-4-2 and Z26 two grades of driving gear 2-2-6 of transfer engage.
Described main shift control bar 2-5 stirs Z122 third gear shifting gear 2-1-3 and Z25 third gear driven gear 2-2-5 phase
Engagement, drives jackshaft to rotate, and Z25 third gear driven gear 2-2-5 and two grades of driving gear 2-2-6 of Z26 transfer are coaxial transmission,
Z26 transfer two grades of driven gear 2-4-2 of two grades of driving gear 2-2-6 and Z412 transfers engage, and drive output shaft to rotate, it is achieved three
Two grades of transfer transmissions of shelves.
Described clutch 1 is made up of driven by clutches assembly 1-1, control rod assembly 1-2 and clutch-pedal support 1-3, described
Driven by clutches assembly 1-1 is made up of base 11-1, spring 11-2, drive end 11-3 and driven end 11-4, and base 11-1 fixes
On front power output shaft 3-1, it is anterior that drive end 11-3 is arranged on base, and drive end 11-3 passes through with front power output shaft 3-1
Spline connects, and can slide in the axial direction, and spring 11-2 is arranged on base and the centre position of drive end 11-3, driven end
It is anterior that 11-4 is arranged on drive end 11-3, and is fixed on front power output shaft 3-1 by bearing, drive end 11-3 and driven end
11-4 contact end face is respectively arranged with intermeshing tooth, and drive end 11-3 can be along front power output shaft 3-1 to driven end
11-4 slides, and drive end 11-3 outer rim is provided with cannelure 113-1, clutch-pedal support 1-3 and is arranged on gear box casing 2-7;Institute
State clutch-pedal support 1-3 and include that top board 13-1, top board both sides of the edge are provided perpendicular to fixed plate 13-2 of top board, top board 13-1
On be provided with two different B shape slotted eye 13-3 of length, fixed plate 13-2 bottom is provided with pin-and-hole 13-4;Control rod assembly 1-2
Stick 12-1 through B shape slotted eye 13-3, the upper end of stick is provided with handball 12-2, and lower end is provided with horizontal pin-and-hole 12-
3, it is provided with shift fork head 12-4, shift fork head 12-4 lower end below stick and is provided with the cannelure 113-1 phase with described drive end
The protruding 12-5 coordinated, shift fork head 12-4 is provided with No. I hole 12-6 and No. II hole 12-7, No. I hole and the axis phase in No. II hole
The most vertical, No. II hole is arranged on above No. I hole, and No. I hole 12-6 is connected by bearing pin with the pin-and-hole 13-4 of fixed plate bottom, No. II
Hole 12-7 and horizontal pin-and-hole 12-3 is connected by bearing pin.
The operation principle of the agri-vehicle change speed gear box in the present embodiment is: in the course of the work, by grasping main gear shift
Vertical pole 2-5 and the control of transfer shelves stick 2-6, can be further separated into 6 by the 3 of main file position drive shift and 1 backward gear
Drive shift and 2 backward gears, and realize gear shift, to meet agri-vehicle to different road surfaces and the adaptation ability of environment, improve
Farm machinery adaptability in the course of the work and reliability;
Be provided with clutch 1 on described front power output shaft 3-1, but realize in work process the cut-out of front-wheel drive with
In conjunction with, after regulation agri-vehicle uses, wheel driving mode is moved, or type of drive common with front and back wheel motion so that the road of vehicle
Face adaptability increases, and contributes to the raising of farm machinery work efficiency.
This utility model can be embodied as the spirit without deviating from invention or essence in a variety of forms, so should manage
Solving, above-described embodiment is not limited to aforesaid details, and should explain widely in claim limited range, therefore falls into
Change and remodeling in claim or its equivalent scope all should be claim and contained.