CN110131378A - A kind of endless-track vehicle speed changer - Google Patents
A kind of endless-track vehicle speed changer Download PDFInfo
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- CN110131378A CN110131378A CN201910340905.6A CN201910340905A CN110131378A CN 110131378 A CN110131378 A CN 110131378A CN 201910340905 A CN201910340905 A CN 201910340905A CN 110131378 A CN110131378 A CN 110131378A
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- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
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- 238000000034 method Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
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- 240000007594 Oryza sativa Species 0.000 description 1
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- 230000009471 action Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
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- 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
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- 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
- F16H2200/0043—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising four forward speeds
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- 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
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Retarders (AREA)
Abstract
The present invention relates to a kind of endless-track vehicle speed changers, the endless-track vehicle speed changer includes box assembly, transmission assembly, differential steering component and main reducing gear component, wherein, transmission assembly, differential steering component, main reducing gear component is mounted on box assembly, transmission assembly has high speed fourth gear and low speed fourth gear, differential steering component directly controls worm screw using HST, the worm gear that worm screw adjusts two sides differential gear realizes Vehicular turn, main reducing gear component has main decelerating effect and reversing switching effect of advancing, cooperate transmission assembly, realize 8 speed combination of 8 speed and reversing of advancing.The present invention is turned to using the direct-connected control endless-track vehicle of HST, using postposition advance reverse gear switching module, advance and the reverse gear of identical quantity are obtained, numbers of gear steps is more, it is suitble to complicated working condition, has many advantages, such as that structure is simple, it is high to turn to precision, it is adjustable to turn to momentary rate.
Description
Technical field
The invention belongs to technical field of mechanical transmission, and in particular to a kind of endless-track vehicle speed changer.
Background technique
Paddy fields in south china causes soil to be bonded because of the long-term waterflooding of rice cultivation, and bearing capacity of soil is poor, works in paddy fields in south china
Endless-track vehicle such as, caterpillar tractor, crawler-type rotary cultivator, track combine etc., these vehicles due to using carry out
Band mobile devices, crawler bearing area is big, and ground pressure is small, especially light track tractor, small-sized caterpillar belt combine harvester
Etc. compact-sized, weight is small, should not sink, skid in wet and slippery soil, has good passage capacity, and obtains extensive benefit
With.The paddy field needs smooth for water storage, area is generally smaller, therefore, caterpillar based on small-sized two crawler belt, and
Two endless-track vehicles can only be realized using the method for two sides crawler belt differential driving and be turned to due to unique design feature.Current two carry out
Band vehicle steering method has a variety of steering forms such as single power flow, double power flow, and wherein two power flow steering is due to steering procedure
In not interrupt power transmit, it is high-efficient, be widely used.But apply at present double power transfers on crawler tractor due to
The duplication of hydraulic power transfer route, components are more, and quality is big, and control precision is low.To solve the above-mentioned problems, new shoe is proposed
Band vehicle speed variation drive method and its equipment.
To solve the above-mentioned problems, need to develop that a kind of structure is simple, it is high to turn to precision, it is adjustable to turn to momentary rate
Endless-track vehicle speed changer.
Summary of the invention
The object of the present invention is to provide a kind of structures simply, it is high to turn to precision, turns to the adjustable creeper truck of momentary rate
Speed changer.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of endless-track vehicle speed changer, including box assembly, speed changer
Component, differential steering component, main reducing gear component and assembly parts, the box assembly, transmission assembly, differential steering component,
Main reducing gear component connected by assembly parts it is integral, the transmission assembly include input shaft assembly, a shaft assembly, two axis groups
Part, output shaft assembly and pull-fork assembly, the output shaft assembly include output shaft, output shaft driven gear and output shaft driving tooth
Wheel, the pull-fork assembly include three fourth gear shift forks and one or two grades of shift forks, and the input shaft assembly is connected by power with a shaft assembly, institute
Two shaft assemblies are stated to be connected by power with a shaft assembly and output shaft assembly respectively, the output shaft assembly by differential steering component with
Main reducing gear component is connected and power can be passed to main reducing gear component after differential is handled, and a shaft assembly includes one
Axis, an axis driven gear, fourth gear driving gear, three fourth gear clutch collars, three fourth gear splined hubs, third speed drive gear, two grades of actives
Gear, one grade of driving gear and HST drive bevel gear, the axis driven gear, two grades of driving gears, one grade of driving gear,
Three fourth gear splined hubs and HST drive bevel gear are fixed on an axis, and the fourth gear driving gear, third speed drive gear empty set are one
On axis, two shaft assembly includes high and low shift splined hub, high and low shift clutch collar, fourth gear driven gear, third gear driven gear, two grades
Driven gear, one or two grades of clutch collars, one or two grades of splined hubs, first speed driven gear and two axis, two grades of driven gears, one grade from
Moving gear empty set is on two axis, and the fourth gear driven gear, third gear driven gear, one or two grades of splined hubs are fixed on two axis, institute
It states three fourth gear splined hubs to be arranged between fourth gear driving gear and third speed drive gear, one or two grades of splined hubs are arranged at two grades
Between driven gear and first speed driven gear, the fourth gear driving gear, third speed drive gear, two grades of driving gears, one grade of master
Moving gear respectively with the fourth gear driven gear, third gear driven gear, two grades of driven gears, first speed driven gear, engage, it is described
Three fourth gear clutch collars can be slided in three fourth gear splined hubs and along three fourth gear splined hubs, described 1 by spline package
Shelves clutch collar can be slid back and forth in one or two grades of splined hubs and along one or two grades of splined hubs, three fourth gear by spline package
Shift fork can drive three fourth gear clutch collars to move along the three fourth gear splined hub and realize three fourth gear clutch collars and fourth gear driving gear
Or the engagement between third speed drive gear, one or two grades of shift forks can drive one or two grades of clutch collars to move along one or two grades of splined hubs
Move and realize engaging for one or two grades of clutch collars and two grades of driven gears or first speed driven gear, the differential steering component includes knot
The identical left differential assembly of structure and right differential assembly and worm screw, HST driven wheel of differential, HST speed changer, the left differential assembly
Including the planetary gear transmission mechanism being made of left sun gear, left lateral star-wheel, left lateral carrier, left gear ring and left turbine, left point
Flow gear, the left worm gear is arranged in the outside of the left gear ring, the left worm gear of the worm screw and the left differential assembly and
The right turbine of right differential assembly engages, the worm screw and the right worm gear of left worm gear and composition worm and gear component, the output shaft master
Moving gear is engaged with the left shunt gear of the left shunt gear of left differential assembly and right differential assembly respectively, and the HST is actively
Bevel gear is arranged on the input shaft of HST speed changer, and the HST driven wheel of differential is often engaged with HST drive bevel gear, described
The output end of HST speed changer is connected with the worm screw.
Further technical solution is that the pull-fork assembly further includes high and low shift shift fork, is fixed with low grade on an axis
Driving gear, two shaft assembly further include low-grade tooth driven wheel and high and low shift splined hub, the low grade driving gear and low-grade
The engagement of tooth driven wheel, on two axis, the high and low shift clutch collar passes through for the low grade tooth driven wheel and high and low shift splined hub empty set
Spline package is in high and low shift splined hub and can slide along high and low shift splined hub, and the high and low shift splined hub is arranged described low
Between shelves driven gear and fourth gear driven gear, the high and low shift shift fork can drive high and low shift clutch collar along the high and low shift spline
Hub is mobile and realizes engaging between high and low shift clutch collar and fourth gear driven gear or low-grade driven gear.
Further technical solution is that the left differential assembly further includes left drive bevel gear, left sun wheel shaft, left lateral star
Wheel shaft and left lateral carrier connecting plate, the left shunt gear, left sun gear pass through spline package in left sun wheel shaft, the left side
It is equipped with 2 to 4 on planet carrier and is uniformly distributed left lateral spider gear shaft, left lateral star is set with by axle sleeve on the left lateral spider gear shaft
Wheel, the left lateral star-wheel are positioned by left lateral carrier and left lateral carrier connecting plate clearance fit, and the left gear ring passes through depth respectively
Ditch ball bearing is supported in left sun wheel shaft and left lateral carrier, and left drive bevel gear is shaft gear, and centre passes through angular contact bearing
It is supported on the other end on cabinet and passes through spline package left lateral carrier.
Further technical solution is that the main reducing gear component includes the identical left main reduction assemblies of main structure and right master
Reduction assemblies, the left main reducing gear component include left output shaft, it is left front into driven wheel of differential, left clutch collar, left splined hub and
Left reverse gear driven wheel of differential, the left output shaft by angular contact bearing be arranged on cabinet, it is described it is left front into driven wheel of differential,
Left reversing driven wheel of differential by axle sleeve empty set on the left output shaft, it is described it is left front into driven wheel of differential, it is left reversing it is driven
Bevel gear often engages with left drive bevel gear, and the left splined hub passes through spline package on left output shaft, the left clutch collar
It can be horizontally slipped in left splined hub in left splined hub by spline package.
Further technical solution is the left external output power in output shaft one end, and the other end is existed by axle sleeve empty set
On right input shaft, the external output power in one end of the right output shaft is arranged the right side and pushes away between the left output shaft and right output shaft
Power bearing, the left output shaft and with right thrust bush is set on right output shaft, the left splined hub is set with right splined hub two sides
Set thrust bush.
Further technical solution is that the input shaft assembly includes that input shaft driving gear and input shaft form, described
Through spline package on input shaft, the input shaft both ends pass through deep groove ball bearing respectively and are supported on case input shaft driving gear
On body, the input shaft is positioned close to clutch end using end cap, is provided with sealing ring in end cap, the input shaft other end passes through gear
Circle is positioned with two axis, and described input shaft one end is connected on clutch driven plate spline and passes through input shaft driving gear for power
It exports to an axis driven gear.
Further technical solution is that the fourth gear driving gear, third speed drive gear pass through axle sleeve empty set on an axis,
The low grade driven gear and high and low shift splined hub pass through needle bearing empty set on two axis, the fourth gear driven gear, third gear
For driven gear through spline package on two axis, two grades of driven gears and first speed driven gear pass through axle sleeve empty set in two axis
On.
Further technical solution is, a shaft assembly further includes power output connector sleeve and power output shaft, described
One end of one axis connects power output shaft by power output connector sleeve, and the power output shaft is mounted on by deep groove ball bearing
On cabinet and pass through the external output power of flange.
Further technical solution is, between the first speed driven gear and deep groove ball bearing, third gear driven gear and two
Pass through only between shelves driven gear, between fourth gear driven gear and high and low shift splined hub, between low regime clutch and deep groove ball bearing
Push shaft set positioning.
Further technical solution is that the output shaft driven gear passes through spline package on output shaft, the output
Outer tooth engagement on axis driven gear and high and low shift clutch collar, output shaft driven gear are wide gear, and high and low shift clutch collar is in sky
The normal engaged transmission of shelves, high-grade and low grade Shi Douyu output shaft driven gear.
Compared with the prior art, the present invention has the advantages that 1) directly controlling worm screw using the output end of HST speed changer,
And then change the speed of worm gear, so that endless-track vehicle left and right sides revolving speed is changed, structure is simple, compact.2) using in speed changer
HST speed changer is driven by bevel gearing on one axis, the input speed of HST independently of speed changer revolving speed, at speed changer
Endless-track vehicle can pivot stud when neutral gear.3) HST speed changer can stepless speed regulation, make the instantaneous steering angle of endless-track vehicle can
It is high to turn to precision for step-less adjustment；4) axis is direct-connected to PTO speed changer, and can continue to output, the ability of external connection power device
By force.5) drive shift and reverse gear are realized using advance driven wheel of differential and reversing driven wheel of differential switching device, in complex job
It is more convenient to manipulate under environment.6) worm gear is controlled using the worm screw in different rotary direction, realizes left and right sides speed regulation, structure is simple.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.
Fig. 1 is the structure chart of endless-track vehicle speed changer involved in one embodiment of the present invention；
Fig. 2 is the structure chart of basic transmission involved in one embodiment of the present invention；
Fig. 3 is the structural schematic diagram of differential steering component involved in one embodiment of the present invention；
Fig. 4 is the structural schematic diagram in another section of differential steering component involved in one embodiment of the present invention；
Fig. 5 is worm and gear differential structure chart involved in one embodiment of the present invention.
In figure:
A box assembly B transmission assembly C differential steering component D main reducing gear component
E assembly parts A1 cabinet A2 case lid A3 oil discharge screw
B1 inputs mono- shaft assembly B3 of shaft assembly B2, bis- shaft assembly B4 output shaft assembly
B5 pull-fork assembly B11 input shaft driving gear B12 input shaft
Mono- axis B22 of B21, mono- axis driven gear B23 low grade driving gear B24 fourth gear driving gear
Tri- fourth gear clutch collar B26 of B25, tri- fourth gear splined hub B27 third speed drive gear bis- grades of driving gears of B28
Mono- grade of driving gear B210HST drive bevel gear B211 power output connector sleeve B212 power output shaft of B29
B31 low grade driven gear B32 high and low shift splined hub B33 high and low shift clutch collar B34 fourth gear driven gear
B35 third gear driven gear bis- grades of B36, mono- or two grades of driven gear B37, mono- or two grades of splined hubs of clutch collar B38
Bis- axis B41 output shaft B42 output shaft driven gear of B39 first speed driven gear B310
Tri- mono- or two grades of shift forks of fourth gear shift fork B53 of B43 output shaft driving gear B51 high and low shift shift fork B52
The right differential assembly C3 worm screw C4HST driven wheel of differential of the left differential assembly C2 of C1
The left sun gear C13 left lateral star-wheel of C5HST speed changer C11 left shunt gear C 12
The left left drive bevel gear of worm gear C16 left lateral carrier C17 of the left gear ring C15 of C14
The right sun gear C23 right lateral star-wheel of the right shunting gear C 22 of the left sun wheel shaft C21 of C18
The right right drive bevel gear of worm gear C26 right lateral carrier C27 of the right gear ring C25 of C24
The left main right main left output shaft of reduction assemblies D11 of reduction assemblies D2 of the right sun wheel shaft D1 of C28
D12 is left front into the left reverse gear driven wheel of differential of the left splined hub D15 of the left clutch collar D14 of driven wheel of differential D13
The right right splined hub of clutch collar D24 of the right advance driven wheel of differential D23 of the right output shaft D22 of D21
The right reverse gear driven wheel of differential E1 end cap E2 sealing ring E3 deep groove ball bearing of D25
E4 angular contact bearing E5 needle bearing E6 retaining ring E7 bolt
E8 axle sleeve E9 snap ring E10 roller bearing E11 thrust bush
E12 flange
Specific embodiment
Present invention will now be described in detail with reference to the accompanying drawings., the description of this part be only it is exemplary and explanatory, do not answer
There is any restriction effect to protection scope of the present invention.In addition, description of the those skilled in the art according to this document, it can be right
Feature in this document in embodiment and in different embodiments carries out the corresponding combination.
The embodiment of the present invention is as follows, referring to Fig.1~5, a kind of endless-track vehicle speed changer, including box assembly A, speed changer group
Part B, differential steering component C, main reducing gear component D and assembly parts E, the box assembly A, transmission assembly B, differential steering group
Part C, main reducing gear component D are integral by assembly parts E connection, and the transmission assembly B includes input shaft assembly B1, an axis group
Part B2, two shaft assembly B3, output shaft assembly B4 and pull-fork assembly B5, the output shaft assembly B4 include output shaft B41, output shaft
Driven gear B42 and output shaft driving gear B43, the pull-fork assembly B5 include three fourth gear shift fork B52 and one or two grades of shift forks
B53, the input shaft assembly B1 are connected by power with a shaft assembly B2, the two shaft assemblies B3 respectively with a shaft assembly B2 and output
Shaft assembly B4 is connected by power, and the output shaft assembly B4 is connected with main reducing gear component D and can will be moved by differential steering component C
Power passes to main reducing gear component D after differential is handled, the shaft assembly B2 include an axis B21, an axis driven gear B22,
Fourth gear driving gear B24, three fourth gear clutch collar B25, three fourth gear splined hub B26, third speed drive gear B27, two grades of driving gears
B28, one grade of driving gear B29 and HST drive bevel gear B210, the axis driven gear B22, two grades of driving gear B28, one
Shelves driving gear B29, three fourth gear splined hub B26 and HST drive bevel gear B210 are fixed on an axis B21, and the fourth gear is actively
On an axis B21, the two shaft assemblies B3 includes high and low shift splined hub B32, height for gear B 24, third speed drive gear B27 empty set
Shelves clutch collar B33, fourth gear driven gear B34, third gear driven gear B35, two grades of driven gear B36, one or two grades of clutch collar B37,
One or two grades of splined hub B38, first speed driven gear B39 and two axis B310, two grades of driven gear B36, first speed driven gear B39
For empty set on two axis B310, the fourth gear driven gear B34, third gear driven gear B35, one or two grades of splined hub B38 are fixed on two
On axis B310, the three fourth gear splined hub B26 is arranged between fourth gear driving gear B24 and third speed drive gear B27, and described one
Two grades of splined hub B38 are arranged between two grades of driven gear B36 and first speed driven gear B39, the fourth gear driving gear B24,
Third speed drive gear B27, two grades of driving gears B28, one grade of driving gear B29 respectively with the fourth gear driven gear B34, third gear
Driven gear B35, two grades of driven gear B36, first speed driven gear B39 engagement, the three fourth gear clutch collar B25 pass through spline housing
It can slide back and forth on three fourth gear splined hub B26 and along three fourth gear splined hub B26, one or two grades of clutch collar B37 are logical
Spline package is crossed on one or two grades of splined hub B38 and can be slid back and forth along one or two grades of splined hub B38, the three fourth gear shift fork
B52 can drive three fourth gear clutch collar B25 to move along the three fourth gear splined hub B26 and realize three fourth gear clutch collar B25 and fourth gear
Engagement between driving gear B24 or third speed drive gear B27, one or two grades of shift fork B53 can drive one or two grades of clutch collar B37
One or two grades of clutch collar B37 and two grades of driven gear B36 or first speed driven gear are moved and realized along one or two grades of splined hub B38
The engagement of B39, the differential steering component C include structure identical left differential assembly C1 and right differential assembly C2 and worm screw
C3, HST driven wheel of differential C4, HST speed changer C5, the left differential assembly C1 include by left sun gear C12, left lateral star-wheel C13,
The planetary gear transmission mechanism and left turbine C15, left shunt gear C 11 of left lateral carrier C16, left gear ring C14 composition, the left side
The outside of the left gear ring, the left worm gear C15 and right differential of the worm screw C3 and the left differential assembly C1 is arranged in worm gear
The right turbine C25 of component C2 is engaged, and the worm screw C3 and the right worm gear of left worm gear C15 and C25 form worm and gear component, described defeated
The shaft driving gear B43 left shunt gear with the left shunt gear C 11 of left differential assembly C1 and right differential assembly C2 respectively
C21 engagement, the HST drive bevel gear B210 are arranged on the input shaft of HST speed changer C5, the HST driven wheel of differential C4
It is often engaged with HST drive bevel gear B210, the output end of the HST speed changer C5 is connected with the worm screw C3.
Assembly parts E includes end cap E1, sealing ring E2, deep groove ball bearing E3, angular contact bearing E4, needle bearing E5, retaining ring
E6, bolt E7, axle sleeve E8, snap ring E9, roller bearing E10, thrust bush E11, flange E12 composition.
Endless-track vehicle straight-line travelling principle: when HST speed changer is in zero speed position, i.e. HST does not export revolving speed externally.This
When worm screw C3 do not rotate, since worm screw C3 is not rotated, left and right worm gear C16, C26 are not also rotated, therefore left and right gear C14,
C24 is not also rotated, at this point, the power revolving speed for being transferred to left and right drive bevel gear C17, C27 is identical.It is contrary, in main deceleration
Under the cooperation of component D, endless-track vehicle straight ahead and reverse travel are realized.
Endless-track vehicle differential steering principle: when HST speed changer is in non-zero position, HST externally exports revolving speed, at this time snail
Bar C3 rotation, since worm screw C3 is rotated, left and right worm gear C16, C26 rotation.Due to the spiral shell of two groups of gears on worm of worm screw C3
Revolve it is contrary, therefore, left and right worm gear C16, C26 under the action of worm screw C3 constant speed opposite direction rotate.Due to turning to left and right
The revolving speed of left and right sun gear C12, C22 of differential assembly C1, C2 are identical, and direction is identical, after planetary gear mechanism is compound,
So that the rotating tendency of left and right planet carrier C16, C26 change, an acceleration is advanced, and a deceleration retreats, and makes endless-track vehicle
The input speed of two sides crawler belt changes, so that endless-track vehicle turns to, the direction that HST externally exports revolving speed is different, right
The direction that the endless-track vehicle answered turns to is also different, rate absolute value and input due to worm screw speed regulation rear left right side track acceleration and deceleration
Speed is equivalent, therefore not equal to when exporting revolving speed in constant speed in HST, and left and right sides crawler belt can obtain the identical characteristics of motion.
One or two gear shift principles: one or two grades of clutch collar B37 are in an intermediate position, realize the neutral gear between one or two grades.Operation
One or two grades of shift fork B53 move backward one or two grades of clutch collar B37 so that the internal spline of one or two grades of clutch collar B37 and one grade it is driven
The external splines of gear B 39 combines, and power is transferred to first speed driven gear B39 by one grade of driving gear B28, by one grade of driven tooth
The external splines of wheel B39 is transferred to one or two grades of clutch collar B37, then is transferred to one or two grades of splined hub B38, to be transferred to two axis
B310, two axis B310 are rotated with one grade.Operating one or two grades of shift fork B53 moves forward one or two grades of clutch collar B37, so that one or two grades
For the internal spline of clutch collar B37 in conjunction with the external splines of two grades of driven gear B36, power is transferred to two by two grades of driving gear B27
Shelves driven gear B36, is transferred to one or two grades of clutch collar B37 by the external splines of two grades of driven gear B36, then be transferred to one or two grades
Splined hub B38 is rotated to be transferred to two axis B310, two axis B310 with two grades.
Three fourth gear gears-shifting theories: three fourth gear clutch collar B25 are in an intermediate position, realize the neutral gear between three fourth gear.Operation
Three fourth gear shift fork B52 move backward three fourth gear clutch collar B25, so that the internal spline of three fourth gear clutch collar B25 and third gear are actively
The external splines of gear B 27 combines, and power is by three fourth gear splined hub B26, three fourth gear clutch collar B25, third speed drive gear B26 transmitting
To third gear driven gear B35, through to be transferred to two axis B310, two axis B310 are rotated with third gear.Operating three fourth gear shift fork B52 makes
Three fourth gear clutch collar B25 are moved forward, so that the external splines of the internal spline of three fourth gear clutch collar B25 and fourth gear driving gear B24
In conjunction with power is transferred to fourth gear driven gear by three fourth gear splined hub B26, three fourth gear clutch collar B25, fourth gear driving gear B24
B34, to be transferred to two axis B310, two axis B310 are rotated with fourth gear.
On the basis of above-described embodiment, in another embodiment of the present invention, if Fig. 2, the pull-fork assembly B5 further include height
It is fixed with low-grade driving gear B23 on shelves shift fork B51, the axis B21, the two shaft assemblies B2 further includes low-grade tooth driven wheel
B31 and high and low shift splined hub B32, the low grade driving gear B23 are engaged with low grade tooth driven wheel B31, and the low grade tooth is driven
B31 and high and low shift splined hub B32 empty set are taken turns on two axis B310, the high and low shift clutch collar B33 is by spline package in height
Shelves splined hub B32 is upper and can slide along high and low shift splined hub B32, the high and low shift splined hub B32 be arranged the low grade from
Between moving gear B31 and fourth gear driven gear B34, the high and low shift shift fork B51 can drive high and low shift clutch collar B33 along the height
Low-grade splined hub B32 is mobile and realizes between high and low shift clutch collar B33 and fourth gear driven gear B34 or low-grade driven gear B31
Engagement.
High and low shift gears-shifting theory: high and low shift clutch collar B33 is in an intermediate position, realizes the neutral gear between high and low shift.Operation
High and low shift shift fork B51 moves backward high and low shift clutch collar B33, the internal spline and fourth gear driven gear of high and low shift clutch collar B33
The external splines of B34 combines, since fourth gear driven gear B34 passes through spline package on two axis B310, high and low shift clutch collar
Essence of the internal spline of B33 in conjunction with the external splines of fourth gear driven gear B34 is so that high and low shift splined hub B32 and two axis B310
In conjunction with.High and low shift clutch collar B33 is exported at this time with top gear.Operation high and low shift shift fork B51 makes high and low shift clutch collar B33 to Forward
It is dynamic, the internal spline of high and low shift clutch collar B33 in conjunction with the external splines of low-grade driven gear B31, due to fourth gear driving gear B24 and
Low-grade driving gear B23 is connected as one, and low-grade driving gear B23 is often engaged with bottom gear gear B 31.Its transfer route are as follows:
Fourth gear driven gear B34, until fourth gear driving gear B24, until low-grade driving gear B23, until low-grade driven gear B31, high and low shift
Clutch collar B33.High and low shift clutch collar B33 is exported at this time with low or first gear.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3~5, the left differential assembly C1 further includes
Left drive bevel gear C17, left sun wheel shaft C18, left lateral spider gear shaft and left lateral carrier connecting plate, the left shunt gear C 11, a left side
Sun gear C12 on left sun wheel shaft C18, is equipped with 2 to 4 on the left lateral carrier C16 and is uniformly distributed by spline package
Left lateral spider gear shaft is set with left lateral star-wheel C13 by axle sleeve on the left lateral spider gear shaft, and the left lateral star-wheel C13 passes through left lateral
Carrier C16 and the positioning of left lateral carrier connecting plate C110 clearance fit, the left gear ring C14 pass through deep groove ball bearing E3 respectively and support
On left sun wheel shaft C18 and left lateral carrier C16, left drive bevel gear C17 is shaft gear, and centre passes through angular contact bearing E4 branch
Support other end on cabinet A1 passes through spline package left lateral carrier C16.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3 and Fig. 4, the main reducing gear component D packet
Main structure identical left main reduction assemblies D1 and right main reduction assemblies D2 is included, the left main reducing gear component D1 includes left output shaft
It is D11, left front defeated into driven wheel of differential D12, left clutch collar D13, left splined hub D14 and left reverse gear driven wheel of differential D15, the left side
Shaft D11 is arranged on cabinet A1 by angular contact bearing E4, it is described it is left front into driven wheel of differential D12, left reversing is from mantle tooth
D15 is taken turns through axle sleeve E8 empty set on the left output shaft D11, it is described it is left front into driven wheel of differential D12, left reversing is from mantle tooth
Wheel D15 is often engaged with left drive bevel gear C17, and the left splined hub D14 passes through spline package on left output shaft D11, described
Left clutch collar D13 can be horizontally slipped by spline package on left splined hub D14 on left splined hub D14.
Drive shift: left clutch collar D13 is slided to the left, left clutch collar D13 simultaneously with left splined hub D14 and left front into from mantle
The external splines of gear D 12 engages, and power is transferred to left front into driven wheel of differential D12 from left drive bevel gear C17, is then passed to
Left clutch collar D13, until left splined hub D14, until left output shaft D11.Right clutch collar D23 is slided to the left simultaneously, and right clutch collar D23 is same
When engaged with right splined hub D24 with the external splines of right advance driven wheel of differential D22, power is transferred to from right drive bevel gear C27
Right advance driven wheel of differential D22 is then passed to right clutch collar D23, until right splined hub D24, until right output shaft D21.
Reverse gear: left clutch collar D13 is slided to the right, and left clutch collar D13 is simultaneously with left splined hub D14 and left reverse gear from mantle
The external splines of gear D 15 engages, and power is transferred to left reverse gear driven wheel of differential D15 from left drive bevel gear C17, is then passed to
Left clutch collar D13, until left splined hub D14, until left output shaft D11.Right clutch collar D23 is slided to the right simultaneously, and right clutch collar D23 is same
When engaged with right splined hub D24 with the external splines of right reverse gear driven wheel of differential D25, power is transferred to from right drive bevel gear C27
Reverse gear driven wheel of differential D25 on the right side, is then passed to right clutch collar D23, until right splined hub D24, until right output shaft D21.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 4, described one end left output shaft D11 is externally defeated
Power out, the other end pass through axle sleeve E8 empty set on right input shaft D21, the external output power in one end of the right output shaft D21,
Right thrust bearing E12, the left output shaft and D11 and right output are set between the left output shaft and D11 and right output shaft D21
Right thrust bush E11 is set on axis D21, and thrust bush E11 is arranged in the left splined hub D14 and the two sides right splined hub D24.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1 and Fig. 2, the input shaft assembly B1 includes
Input shaft driving gear B11 and input shaft B12 composition, the input shaft driving gear B11 is by spline package in input shaft B12
On, the both ends the input shaft B12 pass through deep groove ball bearing E3 respectively and are supported on cabinet A1, and the input shaft B12 is close to clutch
Device end is positioned using end cap E1, and sealing ring E2 is provided in end cap E1, and the input shaft B12 other end is fixed by retaining ring E6 and two axis
Position, the one end the input shaft B12 is connected on clutch driven plate spline and is outputed power by input shaft driving gear B12
To an axis driven gear B22.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, the fourth gear driving gear B24, third gear
Through axle sleeve F8 empty set on an axis B21, the low grade driven gear B31 and high and low shift splined hub B32 passes through driving gear B27
On two axis B310, the fourth gear driven gear B34, third gear driven gear B35's needle bearing E5 empty set are existed by spline package
On two axis B310, two grades of driven gear B36 and first speed driven gear B39 are by axle sleeve E8 empty set on two axis B310.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, the shaft assembly B2 further includes power
The one end for exporting connector sleeve B211 and power output shaft B212, the axis B21 is dynamic by power output connector sleeve B211 connection
Power output shaft B212, the power output shaft B212 are mounted on cabinet A1 by deep groove ball bearing E3 and by E12 pairs of flange
Outer output power.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, the first speed driven gear B39 and zanjon
Between ball bearing E8, between third gear driven gear B35 and two grades of driven gear B36, fourth gear driven gear B34 and high and low shift spline
It is positioned between hub B32, between low regime clutch B31 and deep groove ball bearing E8 by thrust bush E11.
On the basis of above-described embodiment, in another embodiment of the present invention, as Fig. 2, the output shaft driven gear B42 pass through
Spline package is on output shaft B41, outer tooth engagement on the output shaft driven gear B42 and high and low shift clutch collar B33, output
Axis driven gear B42 is wide gear, and high and low shift clutch collar B33 is in neutral gear, top grade and low grade Shi Douyu output shaft driven gear B42
Often engaged transmission.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of endless-track vehicle speed changer, which is characterized in that subtract including box assembly, transmission assembly, differential steering component, master
Fast device assembly and assembly parts, the box assembly, transmission assembly, differential steering component, main reducing gear component pass through assembly parts
Connect integral, the transmission assembly includes input shaft assembly, a shaft assembly, two shaft assemblies, output shaft assembly and shift fork group
Part, the output shaft assembly include output shaft, output shaft driven gear and output shaft driving gear, and the pull-fork assembly includes three
Fourth gear shift fork and one or two grades of shift forks, the input shaft assembly are connected by power with a shaft assembly, two shaft assembly respectively with an axis
Component and output shaft assembly are connected by power, and the output shaft assembly is connected with main reducing gear component by differential steering component and can
Power is passed into main reducing gear component after differential is handled, a shaft assembly includes an axis, an axis driven gear, fourth gear master
Moving gear, three fourth gear clutch collars, three fourth gear splined hubs, third speed drive gear, two grades of driving gears, one grade of driving gear and HST
Drive bevel gear, the axis driven gear, two grades of driving gears, one grade of driving gear, three fourth gear splined hubs and HST initiative taper
Gear is fixed on an axis, and on an axis, two shaft assembly includes height for the fourth gear driving gear, third speed drive gear empty set
Low-grade splined hub, high and low shift clutch collar, fourth gear driven gear, third gear driven gear, two grades of driven gears, one or two grades of clutch collars,
One or two grades of splined hubs, first speed driven gear and two axis, two grades of driven gears, first speed driven gear empty set are on two axis, institute
It states fourth gear driven gear, third gear driven gear, one or two grades of splined hubs to be fixed on two axis, the three fourth gear splined hub is arranged four
Between shelves driving gear and third speed drive gear, one or two grades of splined hubs are arranged in two grades of driven gears and first speed driven gear
Between, the fourth gear driving gear, third speed drive gear, two grades of driving gears, one grade of driving gear respectively with the fourth gear from
Moving gear, third gear driven gear, two grades of driven gears, first speed driven gear, engagements, the three fourth gear clutch collar pass through spline
It is sleeved in three fourth gear splined hubs and can be slided along three fourth gear splined hubs, one or two grades of clutch collars are existed by spline package
It can slide back and forth in one or two grades of splined hubs and along one or two grades of splined hubs, the three fourth gear shift fork can drive three fourth gear clutch collars
It is moved along the three fourth gear splined hub and realizes nibbling between three fourth gear clutch collars and fourth gear driving gear or third speed drive gear
Close, one or two grades of shift forks one or two grades of clutch collars can be driven to move along one or two grades of splined hubs and realize one or two grades of clutch collars with
The engagement of two grades of driven gears or first speed driven gear, the differential steering component include the identical left differential assembly of structure and the right side
Differential assembly and worm screw, HST driven wheel of differential, HST speed changer, the left differential assembly include by left sun gear, left lateral star
The planetary gear transmission mechanism and left turbine, left shunt gear of wheel, left lateral carrier, left gear ring composition, the left worm gear setting
In the outside of the left gear ring, the worm screw nibbles with the left worm gear of the left differential assembly and the right turbine of right differential assembly
Close, the worm screw and the right worm gear of left worm gear and form worm and gear component, the output shaft driving gear respectively with left differential group
The left shunt gear of part and the left shunt gear engagement of right differential assembly, the HST drive bevel gear are arranged in HST speed changer
Input shaft on, the HST driven wheel of differential is often engaged with HST drive bevel gear, the output end of the HST speed changer with it is described
Worm screw is connected.
2. endless-track vehicle speed changer according to claim 1, which is characterized in that the pull-fork assembly further includes that high and low shift is dialled
Fork, is fixed with low-grade driving gear on an axis, and two shaft assembly further includes low-grade tooth driven wheel and high and low shift splined hub,
The low grade driving gear is engaged with low-grade tooth driven wheel, and the low grade tooth driven wheel and high and low shift splined hub empty set are in two axis
On, the high and low shift clutch collar can be slided in high and low shift splined hub and along high and low shift splined hub by spline package, described
For the setting of high and low shift splined hub between the low-grade driven gear and fourth gear driven gear, the high and low shift shift fork can drive height
Shelves clutch collar moves along the high and low shift splined hub and realizes high and low shift clutch collar and fourth gear driven gear or low-grade driven gear
Between engagement.
3. endless-track vehicle speed changer according to claim 1 or 2, which is characterized in that the left differential assembly further includes a left side
Drive bevel gear, left sun wheel shaft, left lateral spider gear shaft and left lateral carrier connecting plate, the left shunt gear, left sun gear pass through
Spline package is equipped with 2 to 4 and is uniformly distributed left lateral spider gear shaft, the left lateral in left sun wheel shaft in the left lateral carrier
Left lateral star-wheel is set with by axle sleeve on spider gear shaft, the left lateral star-wheel connects sheet separation with left lateral carrier by left lateral carrier and matches
Positioning is closed, the left gear ring passes through deep groove ball bearing respectively and is supported in left sun wheel shaft and left lateral carrier, left drive bevel gear
For shaft gear, centre is supported on the other end on cabinet by angular contact bearing and passes through spline package left lateral carrier.
4. endless-track vehicle speed changer according to claim 3, which is characterized in that the main reducing gear component includes main structure
Identical left main reduction assemblies and right main reduction assemblies, the left main reducing gear component includes left output shaft, left front into from mantle
Gear, left clutch collar, left splined hub and left reverse gear driven wheel of differential, the left output shaft are arranged by angular contact bearing in cabinet
On, it is described it is left front into driven wheel of differential, left reversing driven wheel of differential by axle sleeve empty set on the left output shaft, it is described left front
It is often engaged into driven wheel of differential, left reversing driven wheel of differential with left drive bevel gear, the left splined hub is existed by spline package
On left output shaft, the left clutch collar can be horizontally slipped by spline package in left splined hub in left splined hub.
5. endless-track vehicle speed changer according to claim 4, which is characterized in that described left output shaft one end externally exports dynamic
Power, the other end pass through axle sleeve empty set on right input shaft, the external output power in one end of the right output shaft, the left output shaft
Right thrust bearing is set between right output shaft, the left output shaft and with right thrust bush, the left side are set on right output shaft
Thrust bush is arranged in splined hub and right splined hub two sides.
6. endless-track vehicle speed changer according to claim 4, which is characterized in that the input shaft assembly includes input shaft master
Moving gear and input shaft composition, the input shaft driving gear through spline package on input shaft, divide by the input shaft both ends
It is not supported on cabinet by deep groove ball bearing, the input shaft is positioned close to clutch end using end cap, is provided in end cap
Sealing ring, the input shaft other end are positioned by retaining ring and two axis, and described input shaft one end is connected on clutch driven plate spline
And an axis driven gear is outputted power to by input shaft driving gear.
7. endless-track vehicle speed changer according to claim 6, which is characterized in that the fourth gear driving gear, third gear are actively
For gear through axle sleeve empty set on an axis, the low grade driven gear and high and low shift splined hub pass through needle bearing empty set in two axis
On, the fourth gear driven gear, third gear driven gear by spline package on two axis, two grades of driven gears and one grade from
Moving gear is by axle sleeve empty set on two axis.
8. endless-track vehicle speed changer according to claim 6, which is characterized in that a shaft assembly further includes power output
One end of connector sleeve and power output shaft, an axis connects power output shaft by power output connector sleeve, and the power is defeated
Shaft is mounted on cabinet by deep groove ball bearing and by the external output power of flange.
9. endless-track vehicle speed changer according to claim 6, which is characterized in that the first speed driven gear and deep-groove ball axis
Between holding, between third gear driven gear and two grades of driven gears, between fourth gear driven gear and high and low shift splined hub, low regime clutch
It is positioned between deep groove ball bearing by thrust bush.
10. endless-track vehicle speed changer according to claim 9, which is characterized in that the output shaft driven gear passes through flower
Key is sleeved on output shaft, the outer tooth engagement on the output shaft driven gear and high and low shift clutch collar, output shaft driven gear
For wide gear, high and low shift clutch collar is in neutral gear, top grade and the normal engaged transmission of low grade Shi Douyu output shaft driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340905.6A CN110131378A (en) | 2019-04-25 | 2019-04-25 | A kind of endless-track vehicle speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340905.6A CN110131378A (en) | 2019-04-25 | 2019-04-25 | A kind of endless-track vehicle speed changer |
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| Publication Number | Publication Date |
|---|---|
| CN110131378A true CN110131378A (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910340905.6A Pending CN110131378A (en) | 2019-04-25 | 2019-04-25 | A kind of endless-track vehicle speed changer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468774A (en) * | 2018-05-18 | 2018-08-31 | 湖南农业大学 | A kind of differential 4 wheel driven speed changer |
| CN108999949A (en) * | 2018-09-06 | 2018-12-14 | 湖南农业大学 | A kind of endless-track vehicle variable speed drive of differential steering |
| CN109058412A (en) * | 2018-09-06 | 2018-12-21 | 张祝 | A kind of variable speed drive approach that endless-track vehicle double fluid turns to |
| CN109058413A (en) * | 2018-09-06 | 2018-12-21 | 张祝 | A kind of endless-track vehicle shifting control method |
| CN210920001U (en) * | 2019-04-25 | 2020-07-03 | 长沙桑铼特农业机械设备有限公司 | Crawler vehicle transmission |
-
2019
- 2019-04-25 CN CN201910340905.6A patent/CN110131378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468774A (en) * | 2018-05-18 | 2018-08-31 | 湖南农业大学 | A kind of differential 4 wheel driven speed changer |
| CN108999949A (en) * | 2018-09-06 | 2018-12-14 | 湖南农业大学 | A kind of endless-track vehicle variable speed drive of differential steering |
| CN109058412A (en) * | 2018-09-06 | 2018-12-21 | 张祝 | A kind of variable speed drive approach that endless-track vehicle double fluid turns to |
| CN109058413A (en) * | 2018-09-06 | 2018-12-21 | 张祝 | A kind of endless-track vehicle shifting control method |
| CN210920001U (en) * | 2019-04-25 | 2020-07-03 | 长沙桑铼特农业机械设备有限公司 | Crawler vehicle transmission |
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