CN107725694B - A kind of kitten gearbox - Google Patents
A kind of kitten gearbox Download PDFInfo
- Publication number
- CN107725694B CN107725694B CN201711067869.8A CN201711067869A CN107725694B CN 107725694 B CN107725694 B CN 107725694B CN 201711067869 A CN201711067869 A CN 201711067869A CN 107725694 B CN107725694 B CN 107725694B
- Authority
- CN
- China
- Prior art keywords
- gear
- fork
- steering
- shaft
- separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
- F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
- F16H3/30—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial
- F16H3/32—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial and an additional shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/36—Differential gearings characterised by intentionally generating speed difference between outputs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/037—Gearboxes for accommodating differential gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
- F16H63/10—Multiple final output mechanisms being moved by a single common final actuating mechanism the final actuating mechanism having a series of independent ways of movement, each way of movement being associated with only one final output mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/36—Differential gearings characterised by intentionally generating speed difference between outputs
- F16H2048/366—Differential gearings characterised by intentionally generating speed difference between outputs using additional non-orbital gears in combination with clutches or brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02056—Gearboxes for particular applications for vehicle transmissions for utility vehicles, e.g. tractors or agricultural machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3079—Shift rod assembly, e.g. supporting, assembly or manufacturing of shift rails or rods; Special details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
- F16H2200/0086—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising two reverse speeds
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The present invention relates to a kind of small-sized caterpillar belts to drag machine gearbox, it is characterized in that: the gearbox further includes remote controler, receiver, solenoid valve and unidirectional small oil tank;The unidirectional small oil tank is two, and two check valves of the solenoid valve pass through hydraulic oil pipe respectively and connect with two unidirectional small oil tanks of responsible left and right turn;Receiver is connected by two check valves and a main valve of conducting wire and solenoid valve, receiver simultaneously passes through tractor power supply power supply, and receiver is used to receive the various instructions that remote controler is sent and two check valves of solenoid valve and two unidirectional small oil tanks of responsible left and right turn is made to work.The gearbox energy manually handle and remote operation, and be remotely controlled, manual manipulation it is simple, it is non-interference, be easy to use reliable, power output energy positive and negative rotation meets various job requirements, is suitable for various kittens.
Description
Technical field
The present invention relates to a kind of gear box of tractor, especially a kind of small-sized caterpillar belt drags machine gearbox.Belong to farm machinery
Field.
Background technique
The plantation of booth vegetable, the cultivated pipe in orchard require mechanized equipment, and wheeled tractor sits a head height after people, agricultural machinery
It is long to have trifilar suspension, turning radius is big, big to geostatic pressure, and it is limited in greenhouse, orchard operation, therefore be unable to satisfy greenhouse orchard and plough
Pipe demand.
Due to be limited by height when operation under fruit tree, existing tractor cannot sit on operation, can only
Follow the bus operation, is absolutely unsafe, people is needed to devise a kind of kitten, but the core of kitten thus
Problem is exactly to need matching gearbox.Existing gear box of tractor cannot achieve the power output of positive and negative rotation, can only
Manual operation, and volume is big, poor reliability uses inconvenience, is unable to satisfy various job requirements.
Summary of the invention
The object of the present invention is to provide a kind of small-sized caterpillar belts to drag machine gearbox, the gearbox energy manually handle and remote control behaviour
It is vertical, and be remotely controlled, manual manipulation it is simple, it is non-interference, be easy to use reliable, power output energy positive and negative rotation meets various works
Industry demand is suitable for various kittens.
Technical solution of the present invention: a kind of small-sized caterpillar belt drags machine gearbox, it include at least gearbox body, gear shift cover,
Brake system, manual steering system, clutch, power input pinion, clutch shaft, Bo Fork axis, power output shaft, power are defeated
Jackshaft, I-III Dang Bo Fork, I-III shelves gear, main shaft, II-Dao Dang Bo Fork, II-reverse gear, two axis, two axis duplex-gears out
Wheel, high low speed are dialled the fixed gear of Fork, reduction gearing, high slow-speed shaft, high low speed free gear, high low speed, small reduction gearing, small are subtracted
Fast gear shaft turns to separation shaft, turns to separation pinion gear, turn to separation block, steering shaft, turn to separation deceleration gear wheel, driving
Axis and drive gear wheel;It is characterized in that: the gearbox further includes remote controler, receiver, solenoid valve and unidirectional small oil tank;Described
Unidirectional small oil tank is two, and two check valves of the solenoid valve pass through two of hydraulic oil pipe and responsible left and right turn respectively
Unidirectional small oil tank connection;Receiver is connected by two check valves and a main valve of conducting wire and solenoid valve, and receiver simultaneously passes through
Tractor power supply power supply, receiver are used to receive the various instructions that remote controler is sent and make two check valves of solenoid valve and be responsible for
The unidirectional small oil tank work of two of left and right turn.
The manual steering system includes the identical manually handle assembly of steering tiller and left and right, the steering tiller
Front is connect with left and right manually handle assembly respectively;The manually handle assembly include rod head, pull rod, pitman arm and
Steering power separates pull rod;Steering tiller successively sequentially passes through pin shaft and rod head, pull rod, pitman arm and steering power point
It is connected from pull rod, bracket arm levelling seat is socketed on steering power separation pull rod.
It is fixedly mounted among the steering shaft and turns to separation deceleration gear wheel, turn to separation deceleration gear wheel and small deceleration
Gear often engages, and on the both sides for turning to separation deceleration gear wheel, activity installation turns to separation pinion gear, described two steerings respectively
Separation pinion gear turns to cut spring by two and squeezes in the groove for being inserted respectively into and turning to separation deceleration gear wheel both sides, group
At a jaw clutch, turns to separation pinion gear and drive gear wheel often engages;The steering separation shaft and steering separation
Seat is two, they are all symmetrically distributed in steering separation deceleration gear wheel two sides, turns to separation shaft and is movably arranged on steering point
In disseating, steering separation Bo Fork is fixedly installed on the inside of separation shaft turning to, the head for turning to separation Bo Fork is inserted into steering point
It is pulled from steering separation shaft shelves in pinion gear Bo Fork slot, are fixedly installed on the outside of steering separation shaft, turns to activity on separation block
Steering separation rocker arm is installed;It turns to separation rocker arm lower part to be fixedly mounted on unidirectional small oil tank, and separates drawing with steering power
Bar is flexibly connected.
The brake system includes the two identical brake assemblies in left and right;Brake assembly includes: to turn to brake axle, turn to
Brake pinion gear, bracket arm levelling seat, bracket arm and steering brake axle bed, turns to brake axle and is movably arranged on steering brake
In axle bed, turns to brake axle one end and steering brake pinion gear is fixedly mounted, the other end is fixedly installed with brake rim, brakes turning to
It is fixedly installed with brake shell on axle bed, is movably installed on brake shell and turns to brake rocker axis, turn to brake rocker axis
Inside is movably installed with brake shoe, turns to and is fixedly installed with steering brake rocker on the outside of brake rocker axis, and it is logical to turn to brake rocker
It crosses bracket arm to be flexibly connected with bracket arm levelling seat (59), bracket arm aligns seat and adjusting the elastic rear use of bracket arm
Sieve bolt is fixed.
The drive shaft is two, and left and right two is symmetrical, and drive shaft tube is cased in drive shaft, and drive shaft one end is solid
Dingan County fills drive gear wheel, drive gear wheel and steering separation pinion gear and the steering brake pinion gear of brake system often engages,
The other end of drive shaft is fixedly installed with rubber crawler driving wheel.
The power output shaft is mounted on gearbox body top back position, power output shaft, main shaft and power output
Jackshaft distribution triangular in shape, power output shaft one end are movably installed with power output gear, and the other end is flexibly connected dynamic
Output chain gear;Power output intermediate gear is fixedly installed on power output jackshaft;The main shaft also with two axis and clutch
Main shaft duplicate gear, the gear wheel and clutch of main shaft duplicate gear is fixedly mounted in main shaft side in the distribution triangular in shape of device axis
Power input pinion on axis often engages, and the pinion gear of main shaft duplicate gear is often nibbled with the pinion gear of power output intermediate gear
It closes;I-III shelves gear is installed in the activity of the main shaft other side, is fallen in the position side activity installation II-that two axis correspond to main shaft duplicate gear
Gear is kept off, two axis duplicate gears, the reduction gearing in the pinion gear and high slow-speed shaft of two axis duplicate gears is fixedly mounted in the other side
Often engagement.
The Fork axis of dialling is 4, respectively the first group of Fork axis, the 2nd group of Fork axis, the 3rd group of Fork axis and the 4th group of Fork axis,
Guan County is mounted on gearbox sequence respectively according to this from left to right for they;Restricted Activities installation power output on Fork axis is dialled for first to dial
Fork, the 2nd dial Fork axis on Restricted Activities install I-III grade dial Fork, the 3rd dial Fork axis on Restricted Activities install II-reverse gear dial
Fork, Restricted Activities installation height Su Bo Fork on the 4th Ge Bo Fork axis;
It is dialled at the first and is movably installed with power output group Fork on Fork axis, power output dials Fork and stirs power output gear,
Power output gear is in middle position power and does not export, and pushes location right power output gear and the small tooth of main shaft duplicate gear
Wheel engagement, rotates forward power output, pushes left position power output gear and the engagement of power output intermediate gear gear wheel, power
The output of output gear Reverse Power, drives power output sprocket, is rotatablely connected, is outputed power with chain and agricultural machinery and implement.
The clutch shaft is movably arranged on the top of gearbox body, and clutch shaft one end is set with clutch, the other end
Hydraulic oil pump is installed, hydraulic oil pump is fixed on gearbox body, power input pinion is fixedly mounted in the middle part of clutch shaft, from
Clutch is sequentially connected by V-belt and diesel engine belt pulley, and clutch connects with power input pinion and hydraulic oil pump transmission
It connects, hydraulic oil pump output oil port is connect by oil pipe with solenoid valve, and hydraulic oil pump input oil port is connected with hydraulic oil container, and power is defeated
The main shaft duplicate gear gear wheel entered in pinion gear and main shaft often engages.
It is fixedly installed with gear limit on the gear shift cover to pull, Fu Bo Fork axis is also movably installed on gear shift cover,
Fu Bo Fork axle position pulls lower section in gear limit, is fixedly installed with an extension shelves handle and two Fu Bo Fork on Fu Bo Fork axis, and two
A Fu Bo Fork is located in gear shift cover, hangs shelves handle and is located at outside gear shift cover.
The gearbox be 8 gears of high low speed, 8 gears of high low speed include 6 drive shifts and 2 reverse gears, 6
The speed ratio of a drive shift is: I grade 1: 28.5 of high speed, II grade 1: 43.69 of high speed, III grade 1: 72.1 of high speed, I grade 1: 7.496 of low speed,
II grade 1: 11.495 of low speed, III grade 1: 18.97 of low speed;The speed ratio of 2 reverse gears is: the speed ratio of high speed reverse is 1: 41, and II-reverses gear
Speed ratio be 1: 10.79;The power output speed ratio rotating forward of gearbox is 1: 2.79;Reversion is 1: 2.29.
Advantages of the present invention: the gearbox energy manually handle and remote operation, and be remotely controlled, manual manipulation it is simple, do not do mutually
It relates to, is easy to use reliable.The present invention realizes power output positive and negative rotation, meets various job requirements, is suitable for various small
Type crawler tractor.The gearbox is small, is exclusively used in the rubber track tractor speed change of mating 20-30 horsepowers of single cylinder diesel
Case.
Detailed description of the invention
Fig. 1 is arragement construction schematic diagram of the invention;
Fig. 2 is scheme of installation of the invention;
Fig. 3 is manual steering system of the present invention, brake system structural schematic diagram;
Fig. 4 is that the present invention hangs shelves handle position figure;
Fig. 5 is Bo Fork axis installation shifting fork schematic diagram of the present invention.
In figure, 1, clutch;2, power input pinion;3, power input shaft;4, power output Bo Fork;5, Bo Fork axis;
6, hydraulic oil pump;7, power output gear;8, power output shaft;9, power output sprocket;10, power output jackshaft;11, it moves
Power exports intermediate gear;12, I-III Dang Bo Fork;13, I-III shelves gear;14, main shaft;15, main shaft duplicate gear;16, it II-reverses gear
Bo Fork;17, II-reverse gear;18, two axis;19, two axis duplicate gear;20, high low speed dials Fork;21, reduction gearing;22, height
Fast axis;23, high low speed free gear;24, the fixed gear of high low speed;25, small reduction gearing;26, small reduction gear shaft;27, turn
To separation rocker arm;28, separation shaft shelves are turned to pull;29, separation shaft is turned to;30, cut spring is turned to;31, separation pinion gear is turned to;
32, separation block is turned to;33, separation Bo Fork is turned to;34, steering shaft;35, separation deceleration gear wheel is turned to;36, drive shaft tube;37,
Drive shaft;38, rubber crawler driving wheel;39, brake rocker is turned to;40, brake rocker axis is turned to;41, brake shoe;42, it turns to
Brake axle;43, brake pinion gear is turned to;44, big retarding gear;45, gearbox;46, shelves handle is hung;47, gear limit is pulled;
48, Fu Bo Fork;49, Fu Bo Fork axis;50, gear shift cover;51, steering tiller;52, rod head;53, pull rod;54, it turns to and shakes
Arm;55, steering power separates pull rod;56, receiver;57, remote controler;58, solenoid valve;59, bracket arm aligns seat;60, it stops
Car pull bar;61, hydraulic oil pipe;62, unidirectional small oil tank;63, conducting wire;64, brake axle bed is turned to;65, brake shell;66, it brakes
Drum.
Specific embodiment
The present invention is described further combined with specific embodiments below, but protection scope of the present invention is not limited in
This:
Embodiment 1
As shown in Figure 1-3, a kind of small-sized caterpillar belt drags machine gearbox, it includes at least gearbox body 45, gear shift cover 50, stops
Vehicle system, clutch 1, power input pinion 2,3, Bo Fork axis 5 of clutch shaft, power output shaft 8, is moved manual steering system
Power export jackshaft 10, I-III Dang Bo Fork 12, I-III shelves gear 13, main shaft 14, II-Dao Dang Bo Fork 16, II-reverse gear 17,
Two axis 18, two axis duplicate gears 19, high low speed dial Fork 20, reduction gearing 21, high slow-speed shaft 22, high low speed free gear 23, height
Low speed fixes gear 24, small reduction gearing 25, small reduction gear shaft 26, turns to separation shaft 29, turn to separation pinion gear 31, turn to
Separation block 32, steering shaft 34 turn to separation deceleration gear wheel 35, drive shaft 37 and drive gear wheel 44;The gearbox further includes
Remote controler 57, receiver 56, solenoid valve 58 and unidirectional small oil tank 62;The unidirectional small oil tank 62 is two, the electromagnetism
Two check valves of valve 58 pass through hydraulic oil pipe 61 respectively and connect with two unidirectional small oil tanks 62 of responsible left and right turn;Receiver
56 are connect by conducting wire 63 with two check valves of solenoid valve 58 and a main valve, and receiver 56 is simultaneously supplied by dilatory electromechanical source
Electricity, receiver 56 are used to receive the various instructions that remote controler 57 is sent and two check valves and responsible left/right rotation for making solenoid valve 58
To two unidirectional small oil tanks 62 work.
Embodiment 2
On the basis of embodiment 1, as shown in figure 3, the manual steering system includes steering tiller 51 and left and right phase
Same manually handle assembly, 51 front of steering tiller is connect with left and right manually handle assembly respectively;The manual behaviour
Vertical assembly includes rod head 52, pull rod 53, pitman arm 54 and steering power separation pull rod 55;Steering tiller 51 successively sequence
Pull rod 55 is separated by pin shaft and rod head 52, pull rod 53, pitman arm 54 and steering power to connect, and is separated in steering power
Bracket arm levelling seat 59 is socketed on pull rod 55.
It is fixedly mounted among the steering shaft 34 and turns to separation deceleration gear wheel 35, turn to separation 35 He of deceleration gear wheel
The small often engagement of reduction gearing 25, on the both sides for turning to separation deceleration gear wheel 35, activity installation turns to separation pinion gear 31 respectively,
Described two steering separation pinion gears 31 are inserted respectively into steering separation deceleration canine tooth by two steering cut spring 30 extruding
In the groove for taking turns 35 both sides, a jaw clutch is formed, separation pinion gear 31 is turned to and drive gear wheel 44 often engages;It is described
Steering separation shaft 29 and turn to separation block 32 be two, they be all symmetrically distributed in steering separation 35 liang of deceleration gear wheel
Side, turns to separation shaft 29 and is movably arranged in steering separation block 32, and steering separation is fixedly installed on the inside of separation shaft 29 turning to
Bo Fork 33, the head for turning to separation Bo Fork 33 are inserted into steering separation 31 Bo Fork slot of pinion gear, are turning to outside separation shaft 29
Side is fixedly installed with steering separation shaft shelves and pulls 28, turns to and is movably installed with steering separation rocker arm 27 on separation block 32;Turn to separation
27 lower part of rocker arm is fixedly mounted on unidirectional small oil tank 62, and the flexible connection of pull rod 55 is separated with steering power.
The brake system includes the two identical brake assemblies in left and right;Brake assembly includes: to turn to brake axle 42, turn
To brake pinion gear 43, bracket arm levelling seat 59, bracket arm 60 and brake axle bed 64 is turned to, turns to 42 activity of brake axle
It is mounted in steering brake axle bed 64, turns to 42 one end of brake axle and steering brake pinion gear 43, the fixed peace of the other end is fixedly mounted
Equipped with brake rim 66, it is fixedly installed with brake shell 65 on turning to brake axle bed 64, is movably installed on brake shell 65
Brake rocker axis 40 is turned to, turns to and is movably installed with brake shoe 41 on the inside of brake rocker axis 40, turns to 40 outside of brake rocker axis
It is fixedly installed with and turns to brake rocker 39, turn to brake rocker 39 by bracket arm 60 and bracket arm and align 59 activity of seat even
Connect, bracket arm align seat 59 adjust bracket arm 60 it is elastic after fixed with sieve bolt.
The drive shaft 37 is two, and left and right two is symmetrical, and drive shaft tube 36, drive shaft are cased in drive shaft 37
Drive gear wheel 44, drive gear wheel 44 and the steering brake for turning to separation pinion gear 31 and brake system is fixedly mounted in 37 one end
Pinion gear 43 often engages, and the other end of drive shaft 37 is fixedly installed with rubber crawler driving wheel 38.
When turning to manually handle work, steering tiller 51 is moved to left or right, steering power separation pull rod 55 is driven to make to turn
Rotated to separation rocker arm 27, turning to separation rocker arm 27 is that a rectangle takes a fillet, rectangle it is short be sized at dental inlay
The clutch spare time closes size, and the R of fillet is exactly jaw clutch size of separation, in the position close to rectangle short face, steering separation
Installation turns to separation shaft shelves and pulls 28, when steering separation rocker arm 27 rotates on axis 29, and driving separation shaft shelves pull 28, drive steering separation
Axis 29, steering separation Bo Fork 33 make to turn to separation pinion gear 31 and steering separates deceleration gear wheel 35 and separates, and cuts off power, turns to
After separating pinion gear 31 and turning to the separation separation of deceleration gear wheel 35, adjustment bracket arm levelling seat 59 makes work of braking, and completes
It turns to.It when remote operation turns to, is issued and is instructed by remote controler 57, receiver 56 is connected to after instruction through 63 drive magnetic valve of conducting wire
58, so that unidirectional small oil tank 62 is worked, jack up and turn to separation rocker arm 27, pull rod 55 is separated by steering power and drives bracket arm
60, make work of braking, complete to turn to, when parking, two unidirectional small oil tanks 62 are worked at the same time, and complete to stop.
Embodiment 3
On the basis of embodiment 2, as shown in Figure 1-3, after the power output shaft 8 is mounted on 45 top of gearbox body
Side position, power output shaft 8, main shaft 14 and the distribution triangular in shape of power output jackshaft 10,8 one end activity of power output shaft peace
Equipped with power output gear 7, the other end is connected with power output sprocket 9;It is fixedly installed on power output jackshaft 10
Power output intermediate gear 11;The main shaft 14 also with two axis 18 and the distribution triangular in shape of clutch shaft 3, in main shaft 14 1
Main shaft duplicate gear 15, the power input pinion 2 on the gear wheel and clutch shaft 3 of main shaft duplicate gear 15 is fixedly mounted in side
Often engagement, the pinion gear of main shaft duplicate gear 15 are often engaged with the pinion gear of power output intermediate gear 11;14 other side of main shaft
Activity I-III shelves gear 13 of installation installs II-reverse gear in the position side activity of the corresponding main shaft duplicate gear 15 of two axis 18
17, two axis duplicate gears 19, the reducing gear in the pinion gear and high slow-speed shaft 22 of two axis duplicate gears 19 is fixedly mounted in the other side
The often engagement of wheel 21.
The described Fork axis 5 of dialling is 4, respectively the first group of Fork axis 5-1, the 2nd group of Fork axis 5-2, the 3rd group of Fork axis 5-3 and
Si Bo Fork axis 5-4, Guan County is mounted on gearbox sequence respectively according to this from left to right for they;As shown in Figure 1, the first is dialled Fork axis
Upper Restricted Activities installation power output dials Fork 4, dials I-III grade group of Fork 12 of Restricted Activities installation, third on Fork axis for the 2nd and dials
Restricted Activities install II-reverse gear Bo Fork 16, Restricted Activities installation height Su Bo Fork 20 on the 4th Ge Bo Fork axis on Fork axis.
It is dialled at the first and is movably installed with power output group Fork 4 on Fork axis, power output dials Fork 4 and stirs power output gear
7, power output gear 7 is in middle position power and does not export, and pushes location right power output gear 7 and main shaft duplicate gear
The engagement of 15 pinion gears, rotates forward power output, pushes 11 gear wheel of left position power output gear 7 and power output intermediate gear
Engagement, 7 Reverse Power of power output gear output, drives power output sprocket 9, is rotatablely connected, will be moved with chain and agricultural machinery and implement
Power output.
The clutch shaft 3 is movably arranged on the top of gearbox body 45, and 3 one end of clutch shaft is set with clutch 1, separately
One end is equipped with hydraulic oil pump 6, and hydraulic oil pump 6 is fixed on gearbox body, and it is small that power input is fixedly mounted in the middle part of clutch shaft 3
Gear 2, clutch 1 are sequentially connected by V-belt and diesel engine belt pulley, clutch 1 and power input pinion 2 and hydraulic
Oil pump 6 is sequentially connected, and 6 output oil port of hydraulic oil pump is connect by oil pipe with solenoid valve 58,6 input oil port of hydraulic oil pump and hydraulic
Fuel tank connects, and 15 gear wheel of main shaft duplicate gear in power input pinion 2 and main shaft 14 often engages.When hanging reverse gear, II-
Under the stirring of the Bo of Daoing Dang Fork 16, the gear wheel and power input pinion 2 of II-reverse gear 17 are meshed.
It is fixedly installed with gear limit on the gear shift cover 50 and pulls 47, secondary dial also is movably installed on gear shift cover 50
Fork axis 49, Fu Bo Fork axis 49 are located at gear limit and pull 47 lower sections, and an extension shelves handle 46 is fixedly installed on Fu Bo Fork axis 49
It is located in gear shift cover 50 with two Fu Bo Fork 48, two Fu Bo Fork 48, hangs shelves handle 46 and be located at outside gear shift cover 50.Before
After moving afterwards, a pair dials Fork and stirs I-III grade group of Fork 12, another stirs II-, and gear dials Fork 16, high low speed dials Fork 20.
As shown in figure 4, the gearbox is 8 gears of high low speed, 8 gears of high low speed include 6 drive shifts and 2
The speed ratio of a reverse gear, 6 drive shifts is: I grade 1: 28.5 of high speed, II grade 1: 43.69 of high speed, III grade 1: 72.1 of high speed, low speed I
Shelves 1: 7.496, II grade 1: 11.495 of low speed, III grade 1: 18.97 of low speed;The speed ratio of 2 reverse gears is: the speed ratio of high speed reverse is 1:
41, the II-speed ratio reversed gear is 1: 10.79;The power output speed ratio rotating forward of gearbox is 1: 2.79;Reversion is 1: 2.29.
Fork 12 is dialled as shown in figure 5, dialling Restricted Activities on Fork axis at the 2nd and installing I-III grade, the head for dialling Fork, which cuts open, to be inserted into
In I-III shelves gear, 13 Bo Fork slot, the spring 5-6 installed when neutral gear among , Bo Fork holds out against small ball 5-5, Shi Bo Fork active receiving
Limit is in neutral position, hangs shelves handle 46 when hanging I-III grade and drives Fu Bo Fork axis 49 and two Fu Bo Fork 48, shelves are moved in
47 I-III file locations are pulled in position limit, move hang the drive Fu Bo Fork 48 of shelves handle 46 to the left, stir I-III Dang Bo Fork 12, be I-III grade
The engagement of the pinion gear of the gear wheel of gear 13 and two axis duplicate gears 19, hangs into 3 grades, otherwise I-III shelves gear 13 is moved to the left,
The engagement of the gear wheel of the pinion gear of I-III shelves gear 13 and two axis duplicate gears 19, hangs into I grade.
It dials Restricted Activities on Fork axis for 3rd and II-reverse gear group Fork 16 is installed, the head for dialling Fork, which cuts open, is inserted into II-reverse gear 17
In Bo Fork slot, the spring 5-6 installed when neutral gear among , Bo Fork holds out against small ball 5-5, and Shi Bo Fork limitation of activity is in neutral gear
Position hangs shelves handle 46 when hanging shelves and drives Fu Bo Fork axis 49 and two Fu Bo Fork 48, moves backward to gear limit and pulls 47 II-
Gear is set, and is moved to the left and is hung shelves handle 46 and drive Fu Bo Fork 48, stirs II-and reverse gear Dang Bo Fork 16, drive II-reverse gear 17 to
It moves right, the pinion gear of II-reverse gear 17 and the pinion gear engagement of main shaft duplicate gear 15 are hung into II grade, otherwise II-reverses gear
Gear 17 is moved to the left, and gear wheel and power input pinion 2 engagement of II-reverse gear 17 are hung into reverse gear.
The high slow-speed shaft 22 and small reduction gear shaft 26 is mounted in the middle part of gearbox towards right position, in high slow-speed shaft
22 intermediate active installation height speed free gears 23, the 20 , Bo Fork of Restricted Activities installation height Su Bo Fork on the 4th Ge Bo Fork axis
Head cut open and be inserted into the dialling in Fork slot of high low speed free gear 23, reduction gearing 21, reduction gearing is fixedly mounted in the position kept to the side
21 and two often engagements of axis duplicate gear 19, small reduction gearing 25, small deceleration is fixedly mounted in small 26 middle position of reduction gear shaft
It gear 25 and turns to separation deceleration gear wheel 35 and often engages, position of keeping to the side is fixedly mounted the fixed gear 24 of high low speed, when work, moves
Power is inputted revolving speed and the positive and negative rotation of various gears by reduction gearing 21, moves hang the drive Fu Bo Fork 48 of shelves handle 46 to the right, stir
High low speed dials Fork 20, is that the pinion gear of high low speed free gear 23 and the gear wheel engagement of the fixed gear 24 of high low speed, power subtract
Steering separation deceleration gear wheel 35 is passed to through small reduction gearing 25 after speed.Otherwise pair is put on raising speed, the top that high low speed dials Fork 20
Dial than general group Fork wide of slot of Fork, with facilitate hang up properly high low speed after secondary dial exiting for Fork 48.
The well-known components and common structure of component and the structure category industry that the present embodiment does not describe in detail or common hand
Section, does not describe one by one here.
Claims (8)
1. a kind of small-sized caterpillar belt drags machine gearbox, it includes at least gearbox body (45), gear shift cover (50), brake system, hand
(3), Bo Fork axis (5), move power output shaft (8) for dynamic steerable system, clutch (1), power input pinion (2), clutch shaft
Power exports jackshaft (10), I-III Dang Bo Fork (12), I-III gear gear (13), main shaft (14), II-Dao Dang Bo Fork (16), II-
Keep off gear (17), two axis (18), two axis duplicate gears (19), high low speed group Fork (20), reduction gearing (21), high slow-speed shaft
(22), high low speed free gear (23), high low speed are fixed gear (24), small reduction gearing (25), small reduction gear shaft (26), are turned
To separation shaft (29), turn to separation pinion gear (31), steering separation block (32), steering shaft (34), steering separation deceleration gear wheel
(35), drive shaft (37) and drive gear wheel (44);It is characterized in that: the gearbox further include remote controler (57), receiver (56),
Solenoid valve (58) and unidirectional small oil tank (62);The unidirectional small oil tank (62) is two, two of the solenoid valve (58)
Check valve passes through hydraulic oil pipe (61) respectively and connect with two unidirectional small oil tanks (62) of responsible left and right turn;Receiver (56) is logical
It crosses conducting wire (63) to connect with two check valves of solenoid valve (58) and a main valve, receiver (56) is simultaneously supplied by dilatory electromechanical source
Electricity, receiver (56) are used to receive the various instructions that remote controler (57) is sent and make two check valves of solenoid valve and be responsible for left and right
The unidirectional small oil tank work of two turned to;
The manual steering system includes the identical manually handle assembly of steering tiller (51) and left and right, the steering tiller
(51) front is connect with left and right manually handle assembly respectively;The manually handle assembly includes rod head (52), pull rod
(53), pitman arm (54) separates pull rod (55) with steering power;Successively sequence is connect steering tiller (51) by pin shaft and pull rod
Head (52), pull rod (53), pitman arm (54) separate pull rod (55) connection with steering power, separate pull rod (55) in steering power
On be socketed with bracket arm levelling seat (59);
It is fixedly mounted among the steering shaft (34) and turns to separation deceleration gear wheel (35), turn to separation deceleration gear wheel (35)
It is often engaged with small reduction gearing (25), is turned in the both sides difference activity installation for turning to separation deceleration gear wheel (35) and separate small tooth
It takes turns (31), described two steering separation pinion gear (31) are squeezed by two steering cut springs (30) is inserted respectively into steering
In the groove for separating deceleration gear wheel (35) both sides, a jaw clutch is formed, separation pinion gear (31) is turned to and driving is big
Gear (44) often engages;The steering separation shaft (29) and steering separation block (32) is two, they are all symmetrically distributed in
It turns to and separates deceleration gear wheel (35) two sides, turn to separation shaft (29) and be movably arranged in steering separation block (32), divide turning to
Steering separation Bo Fork (33) is fixedly installed on the inside of (29) off axis, it is small that the head of steering separation Bo Fork (33) is inserted into steering separation
Gear (in 31) Bo Fork slots, turns to separation shaft baffle (28) turning to be fixedly installed on the outside of separation shaft (29), turns to separation
Steering separation rocker arm (27) is movably installed on seat (32);It turns to separation rocker arm (27) lower part and is fixedly mounted on unidirectional small oil tank
(62) on, and pull rod (55) flexible connection is separated with steering power.
2. a kind of small-sized caterpillar belt according to claim 1 drags machine gearbox, it is characterized in that: the brake system includes a left side
Right two identical brake assemblies;Brake assembly includes: to turn to brake axle (42), turn to brake pinion gear (43), bracket arm
It aligns seat (59), bracket arm (60) and turns to brake axle bed (64), turn to brake axle (42) and be movably arranged on steering brake axle
In seat (64), turns to brake axle (42) one end and steering brake pinion gear (43) is fixedly mounted, the other end is fixedly installed with brake rim
(66), it is fixedly installed with brake shell (65) on turning to brake axle bed (64), is movably installed with and turns in brake shell (65)
It to brake rocker axis (40), turns to and is movably installed with brake shoe (41) on the inside of brake rocker axis (40), turn to brake rocker axis
(40) outside, which is fixedly installed with, turns to brake rocker (39), turns to brake rocker (39) and passes through bracket arm (60) and bracket arm
Seat (59) are aligned to be flexibly connected, bracket arm align seat (59) adjust bracket arm (60) it is elastic after fixed with bolt.
3. a kind of small-sized caterpillar belt according to claim 2 drags machine gearbox, it is characterized in that: the drive shaft (37) is two
A, left and right two is symmetrical, is cased in drive shaft (37) drive shaft tube (36), and it is big that driving is fixedly mounted in drive shaft (37) one end
Gear (44), drive gear wheel (44) and steering separation pinion gear (31) and the steering of brake system brake pinion gear (43) are often nibbled
It closes, the other end of drive shaft (37) is fixedly installed with rubber crawler driving wheel (38).
4. a kind of small-sized caterpillar belt according to claim 1 drags machine gearbox, it is characterized in that: the power output shaft (8)
It is mounted on gearbox body (45) top back position, power output shaft (8), main shaft (14) and power output jackshaft (10) are in three
Angular distribution, power output shaft (8) one end are movably installed with power output gear (7), and the other end is connected with power output
Sprocket wheel (9);Power output intermediate gear (11) are fixedly installed on power output jackshaft (10);The main shaft (14) is also
With two axis (18) and clutch shaft (3) distribution triangular in shape, main shaft duplicate gear (15) are fixedly mounted in main shaft (14) side, it is main
Power input pinion (2) on the gear wheel and clutch shaft (3) of axis duplicate gear (15) often engages, main shaft duplicate gear
(15) pinion gear is often engaged with the pinion gear of power output intermediate gear (11);I-III gear of main shaft (14) other side activity installation
Gear (13), II-reverse gear (17) are installed in the position side activity in two axis (18) corresponding main shaft duplicate gear (15), another
Two axis duplicate gears (19), the reduction gearing in the pinion gear and high slow-speed shaft (22) of two axis duplicate gears (19) is fixedly mounted in side
(21) often engagement.
5. a kind of small-sized caterpillar belt according to claim 4 drags machine gearbox, it is characterized in that: the Bo Fork axis (5) is 4
It is a, respectively the first group of Fork axis (5-1), the 2nd group of Fork axis (5-2), the 3rd group of Fork axis (5-3) and the 4th group of Fork axis (5-4), it
From left to right according to this sequence respectively Guan County on the gearbox;Restricted Activities installation power is defeated on first group Fork axis (5-1)
It dials out Fork (4), the 2nd is dialled I-III gear group Fork (12) of Restricted Activities installation on Fork axis (5-2), on the 3rd group Fork axis (5-3)
Restricted Activities install II-Dao Dang Bo Fork (16), Restricted Activities installation height Su Bo Fork (20) on the 4th Ge Bo Fork axis (5-4);
It is dialled at the first and is movably installed with power output group Fork (4) on Fork axis (5), power output dials Fork (4) and stirs power output
Gear (7), power output gear (7) are in middle position power and do not export, and push location right power output gear (7) and master
The engagement of axis duplicate gear (15) pinion gear, rotates forward power output, pushes in left position power output gear (7) and power output
Between gear (11) gear wheel engage, the output of power output gear (7) Reverse Power drives power output sprocket (9), with chain and
Agricultural machinery and implement rotation connection, outputs power.
6. a kind of small-sized caterpillar belt according to claim 1 drags machine gearbox, it is characterized in that: the clutch shaft (3) is living
The dynamic top for being mounted on gearbox body (45), clutch shaft (3) one end are set with clutch (1), and the other end is equipped with hydraulic oil pump
(6), hydraulic oil pump (6) is fixed on gearbox body, and power input pinion (2) are fixedly mounted in the middle part of clutch shaft (3), from
Clutch (1) is sequentially connected by V-belt and diesel engine belt pulley, clutch (1) and power input pinion (2) and hydraulic oil
(6) transmission connection is pumped, hydraulic oil pump (6) output oil port is connect by oil pipe with solenoid valve (58), hydraulic oil pump (6) input oil port
It is connected with hydraulic oil container, main shaft duplicate gear (15) gear wheel in power input pinion (2) and main shaft (14) often engages.
7. a kind of small-sized caterpillar belt according to claim 1 drags machine gearbox, it is characterized in that: on the gear shift cover (50)
It is fixedly installed with gear limit to pull (47), Fu Bo Fork axis (49), Fu Bo Fork axis (49) is also movably installed on gear shift cover (50)
It is pulled below (47) positioned at gear limit, a handle of putting into gear (46) and two Fu Bo Fork is fixedly installed on Fu Bo Fork axis (49)
(48), two Fu Bo Fork (48) are located in gear shift cover (50), and it is external that handle of putting into gear (46) is located at gear shift cover (50).
8. a kind of small-sized caterpillar belt according to claim 1 drags machine gearbox, it is characterized in that: the gearbox is high low speed
8 gears, 8 gears of high low speed include that 6 forward gears and 2 are reversed gear, and the speed ratio of 6 forward gears is: I gear 1: 28.5 of high speed,
II gear 1: 43.69 at a high speed, III gear 1: 72.1 of high speed, the gear of low speed I 1: 7.496, the gear of low speed II 1: 11.495, the gear of low speed III 1:
18.97;2 speed ratios reversed gear are: the speed ratio reversed gear at a high speed is 1: 41, and the II-speed ratio reversed gear is 1: 10.79;Gearbox moves
It is 1: 2.79 that power, which exports speed ratio rotating forward,;Reversion is 1: 2.29.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711067869.8A CN107725694B (en) | 2017-11-03 | 2017-11-03 | A kind of kitten gearbox |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711067869.8A CN107725694B (en) | 2017-11-03 | 2017-11-03 | A kind of kitten gearbox |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107725694A CN107725694A (en) | 2018-02-23 |
CN107725694B true CN107725694B (en) | 2019-07-16 |
Family
ID=61222089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711067869.8A Active CN107725694B (en) | 2017-11-03 | 2017-11-03 | A kind of kitten gearbox |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107725694B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108533696B (en) * | 2018-06-28 | 2024-06-21 | 陕西润牧农业科技有限公司 | Multi-cylinder small crawler tractor gearbox |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2291331Y (en) * | 1996-11-25 | 1998-09-16 | 山东省农业机械科学研究所 | Gear box of walking tractor |
US6202781B1 (en) * | 1997-11-28 | 2001-03-20 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Power steering device for vehicles |
CN201849528U (en) * | 2010-11-16 | 2011-06-01 | 吴克俊 | Front hinged or articulated steering tractor |
CN102295028A (en) * | 2010-06-26 | 2011-12-28 | 西北农林科技大学 | Mountain remote control tractor |
CN103742642A (en) * | 2014-01-10 | 2014-04-23 | 富平县悦达机械制造有限公司 | Remote control rubber caterpillar tractor speed changing box |
JP2017175980A (en) * | 2016-03-29 | 2017-10-05 | 三菱マヒンドラ農機株式会社 | Remote controller |
-
2017
- 2017-11-03 CN CN201711067869.8A patent/CN107725694B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2291331Y (en) * | 1996-11-25 | 1998-09-16 | 山东省农业机械科学研究所 | Gear box of walking tractor |
US6202781B1 (en) * | 1997-11-28 | 2001-03-20 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Power steering device for vehicles |
CN102295028A (en) * | 2010-06-26 | 2011-12-28 | 西北农林科技大学 | Mountain remote control tractor |
CN201849528U (en) * | 2010-11-16 | 2011-06-01 | 吴克俊 | Front hinged or articulated steering tractor |
CN103742642A (en) * | 2014-01-10 | 2014-04-23 | 富平县悦达机械制造有限公司 | Remote control rubber caterpillar tractor speed changing box |
JP2017175980A (en) * | 2016-03-29 | 2017-10-05 | 三菱マヒンドラ農機株式会社 | Remote controller |
Also Published As
Publication number | Publication date |
---|---|
CN107725694A (en) | 2018-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103742642B (en) | A kind of remote control rubber track tractor change speed gear box | |
CN104191966B (en) | A kind of self-propelled multifunctional tiller of four-wheel drive | |
CN105247985B (en) | A kind of machine liquid hybrid-driven turns to gearbox in situ | |
CN107725694B (en) | A kind of kitten gearbox | |
CN202743055U (en) | Hinged type transport tractor with front wheel hydraulic drive and back wheel mechanical drive | |
CN205401657U (en) | Track type tractor gearbox and track type tractor | |
CN103358902B (en) | Working in paddy field | |
CN204805445U (en) | Light -duty track type tractor gearbox | |
JP2008212121A (en) | Riding type rice transplanter | |
CN203670750U (en) | Remote-controlled rubber crawler tractor gearbox | |
CN108533696A (en) | A kind of multi-cylinder kitten gearbox | |
CN103016431B (en) | The hydraulic system of all-hydraulic transplanter | |
CN203078313U (en) | Electro-hydraulic combination driving system of rice transplanter | |
CN106612793A (en) | Integrated control device of rice transplanter and linkage control method thereof | |
CN107415682B (en) | Transmission system of self-propelled planting machine | |
WO2005093294A1 (en) | Tractor | |
CN105570439A (en) | Caterpillar tractor gearbox and caterpillar tractor | |
CN103010014A (en) | Electrohydraulic hybrid driving system for seedling planting machine | |
CN1019467B (en) | Riding agricultural maehinery | |
CN204860137U (en) | Middle -size and small -size self -propelled cereal transaxle assembly for combine | |
CN202896292U (en) | Closed-type hydrostatic four-wheel system of self-propelled harvester | |
CN205179668U (en) | Tractor | |
CN107161224A (en) | Light track tractor | |
CN204687843U (en) | A kind of mountain region terraced fields trac. | |
CN203136500U (en) | Hydraulic system of full hydraulic rice transplanter with differential locking function |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |