CN110159725A - A kind of worm gear differential speed type endless-track vehicle Drive - Google Patents
A kind of worm gear differential speed type endless-track vehicle Drive Download PDFInfo
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- CN110159725A CN110159725A CN201910359579.3A CN201910359579A CN110159725A CN 110159725 A CN110159725 A CN 110159725A CN 201910359579 A CN201910359579 A CN 201910359579A CN 110159725 A CN110159725 A CN 110159725A
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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
- F16H48/00—Differential gearings
- F16H48/12—Differential gearings without gears having orbital motion
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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
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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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
- 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
- F16H63/32—Gear shift yokes, e.g. shift forks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention relates to a kind of worm gear differential speed type endless-track vehicle Drives, including box assembly, transmission assembly, differential steering component, main reducing gear component, wherein, transmission assembly, differential steering component, main reducing gear component are mounted on box assembly, differential steering component of the present invention drives fixed displacement motor using variable pump, fixed displacement motor directly controls worm screw, and the worm gear that worm screw adjusts two sides differential gear realizes endless-track vehicle differential steering.The present invention is turned to using the direct-connected worm screw control endless-track vehicle of fixed displacement motor, 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 worm gear differential speed type endless-track vehicle Drive.
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
Worm gear differential speed type endless-track vehicle Drive.
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, it is poor to turn to the adjustable worm gear of momentary rate
Fast formula endless-track vehicle Drive.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of worm gear differential speed type endless-track vehicle Drive, including case
Body component, transmission assembly, differential steering component and main reducing gear component, the transmission assembly include input shaft assembly, one
Shaft assembly, two shaft assemblies, output shaft assembly, reverse gear shaft assembly and shifter assemblies, the input shaft assembly and a shaft assembly power
Connection, two shaft assembly are connected by power with a shaft assembly and output shaft assembly respectively, and the output shaft assembly is turned by differential
It is connected to component with main reducing gear component and power can be passed to main reducing gear component, a shaft assembly after differential is handled
Including an axis, an axis driven gear, fourth gear driving gear, third speed drive gear, two grades of driving gears, one grade of driving gear, fall
Shelves driving gear and variable pump drive bevel gear, two shaft assembly include fourth gear driven gear, three fourth gear splined hubs, three fourth gear
Clutch collar, 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, two axis
Driving gear, reverse gear driven gear and two axis, the differential steering component include the identical left differential assembly of structure and right differential
Component, worm screw, variable pump driven wheel of differential, variable pump, solenoid valve and fixed displacement motor, the left differential assembly includes by Zuo Taiyang
The planetary gear transmission mechanism and left worm gear, left shunt gear of wheel, left lateral star-wheel, left lateral carrier, left gear ring composition, the left side
The outside of the left gear ring, the worm screw and the left worm gear of the left differential assembly and the right side of right differential assembly is arranged in worm gear
Worm gear engagement, the worm screw and the right worm gear of left worm gear and composition worm and gear component, the output shaft assembly mainly include output
Axis, output shaft driven gear and output shaft driving gear, the output shaft driving gear left shunt with left differential assembly respectively
Gear and the engagement of the left shunt gear of right differential assembly, the solenoid valve are controlled by the corner size of endless-track vehicle steering wheel,
The variable pump driven wheel of differential is often engaged with variable pump drive bevel gear, the output end of the fixed displacement motor and the worm screw phase
Even, the solenoid valve is arranged on the oil circuit between the variable pump and fixed displacement motor.
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.
Further technical solution is that the main reducing gear component includes that the identical left main reduction assemblies of structure and right master subtract
Fast component, the left main reducing gear component include left output shaft and left driven wheel of differential, the left drive bevel gear and Zuo Congdong
Bevel gear engagement.
Further technical solution is that the shift assembly includes three shift fork shaft No 4s, three fourth gear shift forks, one or two grades of shift forks
Axis, one or two grades of shift forks, reverse speed shift rod and reverse speed fork, the fourth gear driving gear, third speed drive gear, two grades of driving gears
It is fixed on an axis with one grade of driving gear, the variable pump drive bevel gear passes through spline package on an axis, described
Fourth gear driven gear, third gear driven gear, two grades of driven gears, first speed driven gear pass through axle sleeve empty set on two axis,
The three fourth gear splined hub, through spline package on two axis, the three fourth gear splined hub is arranged in fourth gear one or two grades of splined hubs
Between driven gear and third gear driven gear, one or two grades of splined hubs setting two grades of driven gears and first speed driven gear it
Between, the fourth gear driving gear, third speed drive gear, two grades of driving gears and one grade of driving gear are driven with the fourth gear respectively
Gear, third gear driven gear, two grades of driven gears and first speed driven gear engagement, the three fourth gear clutch collar pass through spline package
It can slide back and forth in three fourth gear splined hubs and 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 driven gear or third gear driven 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.
Further technical solution is the axis driven gear, fourth gear driving gear, third speed drive gear, two grades of masters
Moving gear, one grade of driving gear, reverse driving gear and variable displacement motor drive bevel gear are by spline package on an axis.
Further technical solution is, the reverse gear shaft assembly includes reverse shaft and reverse idler gear, in the reverse gear
Between gear on reverse shaft and can be slided on reverse shaft by spline package, the reverse speed fork drive reverse idler gear
Slided along reverse shaft and realize engaging and separating for reverse idler gear and reverse driving gear, the reverse idler gear with reverse gear
Driven gear often engages.
Further technical solution is that for the reverse gear driven gear empty set on two axis, the box assembly includes cabinet
And bearing, the reverse shaft, an axis are by bearing support on cabinet.
Further technical solution is that the input shaft assembly includes input shaft driving gear and input shaft, the input
Axis driving gear is through spline package on input shaft, and the both ends of the input shaft pass through bearing support on cabinet respectively, institute
It states input shaft one end to be connected on clutch driven plate spline, the input shaft driving gear is nibbled with the axis driven gear
It closes.
Further technical solution is that the left shunt gear, left sun gear pass through spline package in left sun wheel shaft,
The left gear ring passes through bearing support in left sun wheel shaft and left lateral carrier respectively, and the left drive bevel gear is pacified by spline
In left lateral carrier.
Further technical solution is that the left output shaft is mounted on cabinet by bearing, the left driven wheel of differential
Through spline package on left output shaft.
Compared with the prior art, the present invention directly controls worm screw using the output end of fixed displacement motor, and then changes worm gear
Speed makes endless-track vehicle left and right sides revolving speed change, and structure is simple, compact；Pass through bevel gear using on one axis of speed changer
Device drives variable pump, revolving speed of the input speed of variable pump independently of speed changer, the endless-track vehicle when speed changer is in neutral gear
It can pivot stud.Variable pump and fixed displacement motor form stepless speed-regulating device, make the instantaneous steering angle of endless-track vehicle can stepless-adjustment
It is high to turn to precision for section；Using reversal valve is arranged between variable pump and fixed displacement motor, turn advancing to fall to switch between reversing
To hydraulic circuit, make to advance and steering rule having the same of moving backward.
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 worm gear differential speed type endless-track vehicle Drive complete machine structure figure involved in one embodiment of the present invention；
Fig. 2 is the transmission principle of worm gear differential speed type endless-track vehicle Drive involved in one embodiment of the present invention
Figure；
Fig. 3 is the differential and driving principle figure of worm gear differential speed type endless-track vehicle involved in one embodiment of the present invention；
Fig. 4 is that the HST of worm gear differential speed type endless-track vehicle involved in one embodiment of the present invention controls worm gear differential original
Reason figure.
In figure:
A box assembly B transmission assembly C differential steering component D main reducing gear component
A1 cabinet A2 bearing B1 inputs mono- shaft assembly of shaft assembly B2
Bis- shaft assembly B4 output shaft assembly B5 reverse gear shaft assembly B6 shifter assemblies of B3
Mono- axis of B11 input shaft driving gear B12 input shaft B21
Mono- axis driven gear B23 fourth gear driving gear B24 third speed drive gear of B22
Bis- grades of B25, mono- grade of driving gear B26 driving gear B27 reverse driving gear
Tri- fourth gear splined hub of B28 variable pump drive bevel gear B31 fourth gear driven gear B32
Tri- fourth gear clutch collar B34 third gear driven gear bis- grades of driven gears of B35 of B33
Mono- or two grades of B36, mono- or two grades of clutch collar B37 splined hub B38 first speed driven gear
Bis- axis driving gear B10 reverse gear driven gear B311 of B39, bis- axis
B41 output shaft B42 output shaft driven gear B43 output shaft driving gear
Tri- shift fork shaft No 4 of B51 reverse shaft B52 reverse idler gear B61
Tri- mono- or two grades of fourth gear shift fork B63, mono- or two grades of shift fork axle B64 shift fork of B62
The left differential assembly of B65 reverse speed shift rod B66 reverse speed fork C1
The right differential assembly C3 worm screw C4 variable pump driven wheel of differential of C2
C5 variable pump C6 solenoid valve C7 fixed displacement motor
The left sun gear C13 left lateral star-wheel of C11 left shunt gear C 12
The left worm gear C16 left lateral carrier of the left gear ring C15 of C14
The right shunting gear of the left sun wheel shaft C21 of the left drive bevel gear C18 of C17
The right right gear ring of sun gear C23 right lateral star-wheel C24 of C22
The right right drive bevel gear of worm gear C26 right lateral carrier C27 of C25
The left main right main reduction assemblies of reduction assemblies D2 of the right sun wheel shaft D1 of C28
The left right output shaft of driven wheel of differential D21 of the left output shaft D12 of D11
The right driven wheel of differential of D22
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.1~4, a kind of worm gear differential speed type endless-track vehicle Drive, including cabinet group
Part A, transmission assembly B, differential steering component C and main reducing gear component D, the transmission assembly B include input shaft assembly B1,
One shaft assembly B2, two shaft assembly B3, output shaft assembly B4, reverse gear shaft assembly B5 and shifter assemblies B6, the input shaft assembly B1
It is connected by power with a shaft assembly B2, the two shaft assemblies B3 is connected by power with a shaft assembly B2 and output shaft assembly B4 respectively, institute
Output shaft assembly B4 is stated to be connected by differential steering component C with main reducing gear component D and power can be transmitted after differential is handled
Giving main reducing gear component D, the shaft assembly B2 includes an axis B21, an axis driven gear B22, fourth gear driving gear B23, three
Shelves driving gear B24, two grades of driving gear B25, one grade of driving gear B26, reverse driving gear B27 and variable pump active conical tooth
B28 is taken turns, the two shaft assemblies B3 includes fourth gear driven gear B31, three fourth gear splined hub B32, three fourth gear clutch collar B33, third gear
Driven gear B34, two grades of driven gear B35, one or two grades of clutch collar B36, one or two grades of splined hub B37, first speed driven gear B38,
Two axis driving gear B39, reverse gear driven gear B10 and two axis B311, the differential steering component C include the identical left difference of structure
Fast component C1 and right differential assembly C2, worm screw C3, variable pump driven wheel of differential C4, variable pump C5, solenoid valve C6 and fixed displacement motor
C7, the left differential assembly C1 include being made of left sun gear C12, left lateral star-wheel C13, left lateral carrier C16, left gear ring C14
The outside of the left gear ring is arranged in planetary gear transmission mechanism and left worm gear C15, left shunt gear C 11, the left worm gear,
The worm screw C3 is engaged with the right worm gear C25 of the left worm gear C15 of the left differential assembly C1 and right differential assembly C2, the snail
Bar C3 and the right worm gear of left worm gear C15 and C25 form worm and gear component, the output shaft assembly B4 mainly include output shaft B41,
Output shaft driven gear B42 and output shaft driving gear B43, the output shaft driving gear B43 respectively with left differential assembly C1
Left shunt gear C 11 and the left shunt gear C 21 of right differential assembly C2 engage, the solenoid valve C5 turned to by endless-track vehicle
The corner size of disk controls, and the variable pump driven wheel of differential C4 is often engaged with variable pump drive bevel gear B28, the quantitative horse
Output end up to C7 is connected with the worm screw C3, and the solenoid valve C6 is arranged between the variable pump C5 and fixed displacement motor C7
On oil circuit.
Endless-track vehicle straight-line travelling principle: when variable pump C6 is in zero speed position, externally output does not turn fixed displacement motor C7
When fast.Worm screw C3 is not rotated at this time, since worm screw C3 is not rotated, left and right worm gear C16, C26 are not also rotated, therefore left and right
Gear ring C14, C24 are not also rotated, at this point, the power revolving speed for being transferred to left and right drive bevel gear C17, C27 is identical, direction is identical,
Realize endless-track vehicle straight-line travelling.
Endless-track vehicle differential steering principle: when variable pump C6 is in non-zero position, fixed displacement motor C7 externally exports revolving speed,
Worm screw C3 is rotated at this time, since worm screw C3 is rotated, left and right worm gear C16, C26 rotation.Left and right is mounted on due to worm screw C3
Between worm gear C16, C26, therefore, left and right worm gear C16, C26 constant speed opposite direction under the action of worm screw C3 rotate.Due to turning to
The revolving speed of left and right sun gear C12, C22 of left and right differential assembly C1, C2 are identical, and direction is identical, and are passed by left and right worm gear C16, C26
The revolving speed for being handed to left and right gear ring C14, C24 is identical, contrary, after planetary gear mechanism is compound, so that left and right planet
The rotating tendency of frame C16, C26 change, and an acceleration is advanced, and a deceleration retreats, and make the defeated of endless-track vehicle two sides crawler belt
Enter revolving speed to change, so that endless-track vehicle turns to, the direction that fixed displacement motor C7 externally exports revolving speed is different, corresponding shoe
Direction with Vehicular turn is also different, due to the rate absolute value of worm screw speed regulation rear left right side track acceleration and deceleration and input speed etc.
Together, therefore fixed displacement motor C7 is when constant speed is not etc. to output revolving speed, and left and right sides crawler belt can obtain identical divertical motion rule.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, the left differential assembly C1 further includes a left side
Drive bevel gear C17, left sun wheel shaft C18, the left shunt gear C 11, left sun gear C12 are by spline package in Zuo Taiyang
On wheel shaft C18,2 to 4 are equipped on the left lateral carrier C16 and is uniformly distributed left lateral star-wheel C13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, the main reducing gear component D includes structure
Identical left main reduction assemblies D1 and right main reduction assemblies D2, the left main reducing gear component D1 includes left output shaft D11 and a left side
Driven wheel of differential D12, the left drive bevel gear C17 are engaged with left driven wheel of differential D12.
On the basis of above-described embodiment, in another embodiment of the present invention, if Fig. 2, the shift assembly B6 include three fourth gear
Shift fork axle B61, three fourth gear shift fork B62, one or two grades of shift fork axle B63, one or two grades of shift fork B64, reverse speed shift rod B65 and reverse speed fork
B66, the fourth gear driving gear B23, third speed drive gear B24, two grades of driving gear B25 and one grade of driving gear B26 are fixed
It is arranged on an axis B21, the variable pump drive bevel gear B28 passes through spline package on an axis B21, the fourth gear driven tooth
B31 is taken turns, third gear driven gear B34, two grades of driven gear B35, first speed driven gear B38 are by axle sleeve empty set in two axis
On B311, the three fourth gear splined hub B32, one or two grades of splined hub B37 pass through spline package on two axis B311, three fourth gear
Splined hub B32 is arranged between fourth gear driven gear B31 and third gear driven gear B34, and one or two grades of splined hub B37 setting exists
Between two grades of driven gear B35 and first speed driven gear B38, the fourth gear driving gear B23, third speed drive gear B24, two grades
Driving gear B25 and one grade of driving gear B26 respectively with the fourth gear driven gear B31, third gear driven gear B34, two grades from
Moving gear B35 and first speed driven gear B38 engagement, the three fourth gear clutch collar B33 is by spline package in three fourth gear splined hubs
B32 is upper and can slide back and forth along three fourth gear splined hub B32, and one or two grades of clutch collar B36 are by spline package one or two
It can slide back and forth on shelves splined hub B37 and along one or two grades of splined hub B37, the three fourth gear shift fork B62 can drive three fourth gear
Clutch collar B33 is moved along the three fourth gear splined hub B32 and is realized three fourth gear clutch collar B33 and fourth gear driven gear B31 or three
Engagement between shelves driven gear B34, one or two grades of shift fork B64 can drive one or two grades of clutch collar B36 along one or two grades of flowers
Key hub B37 is mobile and realizes engaging for one or two grades of clutch collar B36 and two grades of driven gear B35 or first speed driven gear B38.
One or two gear shift principles: one or two grades of clutch collar B36 are in an intermediate position, realize the neutral gear between one or two grades.Operation
One or two grades of shift fork axle B63 are moved backward, and one or two grades of shift fork B64 drive one or two grades of clutch collar B36 to move backward, so that one or two grades connect
For the internal spline of trap B36 in conjunction with the external splines of first speed driven gear B38, power is transferred to one grade by one grade of driving gear B26
Driven gear B38 is transferred to one or two grades of clutch collar B36 by the external splines of first speed driven gear B38, then is transferred to one or two grades of flowers
Key hub B37 is rotated to be transferred to two axis B311, two axis B311 with one grade.It operates one or two grades of shift fork axle B63 to travel forward, one
Two grades of shift fork B64 drive one or two grades of clutch collar B36 to move forward so that the internal spline of one or two grades of clutch collar B36 and two grades it is driven
The external splines of gear B 35 combines, and power is transferred to two grades of driven gear B35 by two grades of driving gear B25, by two grades of driven tooths
The external splines of wheel B35 is transferred to one or two grades of clutch collar B36, then is transferred to one or two grades of splined hub B37, to be transferred to two axis
B311, two axis B311 are rotated with two grades.
Three fourth gear gears-shifting theories: three fourth gear clutch collar B33 are in an intermediate position, realize the neutral gear between three fourth gear.Operation
Three shift fork shaft No 4 B61 are moved backward, and three fourth gear shift fork B62 drive three fourth gear clutch collar B33 to move backward, so that three fourth gear connect
For the internal spline of trap B33 in conjunction with the external splines of third gear driven gear B39, power is transferred to third gear by third speed drive gear B24
Driven gear B34 is transferred to three fourth gear clutch collar B33 by the external splines of third gear driven gear B34, then is transferred to three fourth gear flower
Key hub B32, to be transferred to two axis B311, two axis B311 are rotated with third gear.It operates three shift fork shaft No 4 B61 to travel forward, three
Fourth gear shift fork B62 drives three fourth gear clutch collar B33 to move forward, so that the internal spline of three fourth gear clutch collar B33 and fourth gear are driven
The external splines of gear B 31 combines, and power is transferred to fourth gear driven gear B31 by fourth gear driving gear B23, by fourth gear driven tooth
The external splines of wheel B31 is transferred to three fourth gear clutch collar B33, then is transferred to three fourth gear splined hub B32, to be transferred to two axis
B311, two axis B311 are rotated with fourth gear.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, the axis driven gear B22, fourth gear
Driving gear B23, third speed drive gear B24, two grades of driving gear B25, one grade of driving gear B26, reverse driving gear B27 and
Variable displacement motor drive bevel gear B28 is by spline package on an axis B21.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, the reverse gear shaft assembly B5 includes reverse gear
Axis B51 and reverse idler gear B52, the reverse idler gear B52 on reverse shaft B51 and can fallen by spline package
It is slided on shelves axis B51, the reverse speed fork B66 drives reverse idler gear B52 to slide along reverse shaft B51 and realizes reverse gear center tooth
Wheel B52 engaging and separating with reverse driving gear B27's, and the reverse idler gear B52 is often nibbled with the driven gear B310 that reverses gear
It closes.
Reverse shift principle: operation reverse speed shift rod B65 travels forward, and reverse speed fork B66 drives reverse idler gear B52
Forward slip, reverse idler gear B52 are engaged simultaneously with reverse driving gear B27 and reverse gear driven gear B310, two axis B311
It is identical as a direction axis B21, realize reverse gear output.Operation reverse speed shift rod B65 is moved backward, and reverse speed fork B66 drives reverse gear
Intermediate gear B52 is slided backward, and reverse idler gear B52 and reverse driving gear separate, power interruption, realizes that reverse shaft is empty
Shelves.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1~3, the reverse gear driven gear B310 is empty
It covers on two axis B311, the box assembly A includes that cabinet A1 and bearing A2, the reverse shaft B51, an axis B21 pass through bearing
A2 is supported on cabinet A1.
On the basis of above-described embodiment, in another embodiment of the present invention, if Fig. 2, the input shaft assembly B1 include input
Axis driving gear B11 and input shaft B12, the input shaft driving gear B11 passes through spline package on input shaft B12, described
The both ends of input shaft B12 pass through bearing A12 respectively and are supported on cabinet A1, the one end the input shaft B12 be connected to clutch from
On Moving plate spline, the input shaft driving gear B11 is engaged with the axis driven gear B22.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, the left shunt gear C 11, Zuo Taiyang
C12 is taken turns through spline package on left sun wheel shaft C18, the left gear ring C14 passes through bearing A2 respectively and is supported on left sun gear
On axis B41 and left lateral carrier C16, the left drive bevel gear C17 is mounted on left lateral carrier C16 by spline.
On the basis of above-described embodiment, in another embodiment of the present invention, as Fig. 3, the left output shaft D11 pass through bearing A2
It is mounted on cabinet A1, the left driven wheel of differential D12 is by spline package on left output shaft D11.
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 worm gear differential speed type endless-track vehicle Drive, which is characterized in that including box assembly, transmission assembly, differential
Steering assembly and main reducing gear component, the transmission assembly include input shaft assembly, a shaft assembly, two shaft assemblies, output shaft
Component, reverse gear shaft assembly and shifter assemblies, the input shaft assembly are connected by power with a shaft assembly, two shaft assembly respectively with
One shaft assembly and output shaft assembly are connected by power, and the output shaft assembly is connected by differential steering component with main reducing gear component
And power can be passed to main reducing gear component after differential is handled, a shaft assembly includes an axis, an axis driven gear, four
Shelves driving gear, third speed drive gear, two grades of driving gears, one grade of driving gear, reverse driving gear and variable pump initiative taper
Gear, two shaft assembly include fourth gear driven gear, three fourth gear splined hubs, three fourth gear clutch collars, 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, two axis driving gears, reverse gear driven gear and two
Axis, the differential steering component include the identical left differential assembly of structure and right differential assembly, worm screw, variable pump from mantle tooth
Wheel, variable pump, solenoid valve and fixed displacement motor, the left differential assembly include by left sun gear, left lateral star-wheel, left lateral carrier, a left side
The left gear ring is arranged in the planetary gear transmission mechanism and left worm gear, left shunt gear of gear ring composition, the left worm gear
Outside, the worm screw engage with the right worm gear of the left worm gear of the left differential assembly and right differential assembly, the worm screw and a left side
The right worm gear of worm gear and composition worm and gear component, the output shaft assembly mainly include output shaft, output shaft driven gear and defeated
Shaft driving gear, the output shaft driving gear left side with the left shunt gear of left differential assembly and right differential assembly respectively
Shunt gear engagement, the solenoid valve control by the corner size of endless-track vehicle steering wheel, the variable pump driven wheel of differential and
Variable pump drive bevel gear often engages, and the output end of the fixed displacement motor is connected with the worm screw, and the solenoid valve is arranged in institute
It states on the oil circuit between variable pump and fixed displacement motor.
2. worm gear differential speed type endless-track vehicle Drive according to claim 1, which is characterized in that the left differential assembly
Further include left drive bevel gear, left sun wheel shaft, left lateral spider gear shaft and left lateral carrier connecting plate, the left shunt gear, it is left too
Sun wheel in left sun wheel shaft, is equipped with 2 to 4 in the left lateral carrier and is uniformly distributed left lateral spider gear shaft by spline package,
Left lateral star-wheel is set with by axle sleeve on the left lateral spider gear shaft, the left lateral star-wheel is connected by left lateral carrier with left lateral carrier
Sheet separation cooperation positioning.
3. worm gear differential speed type endless-track vehicle Drive according to claim 2, which is characterized in that the main reducing gear group
Part includes the identical left main reduction assemblies of structure and right main reduction assemblies, and the left main reducing gear component includes left output shaft and a left side
Driven wheel of differential, the left drive bevel gear are engaged with left driven wheel of differential.
4. worm gear differential speed type endless-track vehicle Drive according to claim 1, which is characterized in that the shift assembly packet
Include three shift fork shaft No 4s, three fourth gear shift forks, one or two grades of shift fork axles, one or two grades of shift forks, reverse speed shift rod and reverse speed fork, described four
Shelves driving gear, third speed drive gear, two grades of driving gears and one grade of driving gear are fixed on an axis, the variable pump
Drive bevel gear passes through spline package on an axis, the fourth gear driven gear, third gear driven gear, two grades of driven gears, and one
For shelves driven gear through axle sleeve empty set on two axis, the three fourth gear splined hub, one or two grades of splined hubs pass through spline package
On two axis, the three fourth gear splined hub is arranged between fourth gear driven gear and third gear driven gear, one or two grades of splines
The fourth gear driving gear, third speed drive gear, two grades of actives at two grades between driven gear and first speed driven gear are arranged in hub
Gear and one grade of driving gear are driven with the fourth gear driven gear, third gear driven gear, two grades of driven gears and one grade respectively
Gear engagement, the three fourth gear clutch collar is by spline package in three fourth gear splined hubs and before can be along three fourth gear splined hubs
After slide, one or two grades of clutch collars pass through spline package in one or two grades of splined hubs and before and after can be along one or two grades of splined hubs
Sliding, the three fourth gear 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
Engaging between fourth gear driven gear or third gear driven gear, one or two grades of shift forks can drive one or two grades of clutch collars described in
One or two grades of splined hubs are mobile and realize engaging for one or two grades of clutch collars and two grades of driven gears or first speed driven gear.
5. worm gear differential speed type endless-track vehicle Drive described in any one according to claim 1~4, which is characterized in that institute
State an axis driven gear, fourth gear driving gear, third speed drive gear, two grades of driving gears, one grade of driving gear, reverse gear driving tooth
Wheel and variable displacement motor drive bevel gear pass through spline package on an axis.
6. worm gear differential speed type endless-track vehicle Drive according to claim 5, which is characterized in that the reverse gear shaft assembly
Including reverse shaft and reverse idler gear, the reverse idler gear is by spline package on reverse shaft and can be in reverse shaft
Upper sliding, the reverse speed fork drive reverse idler gear to slide along reverse shaft and realize reverse idler gear and reverse driving gear
Engagement and separate, the reverse idler gear is often engaged with the driven gear that reverses gear.
7. worm gear differential speed type endless-track vehicle Drive according to claim 5, which is characterized in that the reverse gear driven tooth
Empty set is taken turns on two axis, the box assembly includes cabinet and bearing, and the reverse shaft, an axis are by bearing support in cabinet
On.
8. worm gear differential speed type endless-track vehicle Drive according to claim 5, which is characterized in that the input shaft assembly
Including input shaft driving gear and input shaft, the input shaft driving gear passes through spline package on input shaft, the input
The both ends of axis pass through bearing support on cabinet respectively, and described input shaft one end is connected on clutch driven plate spline, described
Input shaft driving gear is engaged with the axis driven gear.
9. worm gear differential speed type endless-track vehicle Drive according to claim 2, which is characterized in that the left shunt tooth
Through spline package in left sun wheel shaft, the left gear ring passes through bearing support in left sun wheel shaft respectively for wheel, left sun gear
In left lateral carrier, the left drive bevel gear is mounted in left lateral carrier by spline.
10. worm gear differential speed type endless-track vehicle Drive according to claim 3, which is characterized in that the left output shaft
It is mounted on cabinet by bearing, the left driven wheel of differential is by spline package on left output shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910359579.3A CN110159725B (en) | 2019-04-30 | 2019-04-30 | Worm gear differential type tracked vehicle transmission equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359579.3A CN110159725B (en) | 2019-04-30 | 2019-04-30 | Worm gear differential type tracked vehicle transmission equipment |
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| CN110159725A true CN110159725A (en) | 2019-08-23 |
| CN110159725B CN110159725B (en) | 2020-05-01 |
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| JP2003172429A (en) * | 2001-09-26 | 2003-06-20 | Tochigi Fuji Ind Co Ltd | Actuator and differential device using the same |
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| CN108843787A (en) * | 2018-09-06 | 2018-11-20 | 湖南农业大学 | A kind of variable speed drive for tracked carrier |
| 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 |
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2019
- 2019-04-30 CN CN201910359579.3A patent/CN110159725B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003172429A (en) * | 2001-09-26 | 2003-06-20 | Tochigi Fuji Ind Co Ltd | Actuator and differential device using the same |
| CN202889934U (en) * | 2012-11-21 | 2013-04-24 | 湖南农业大学 | Novel rice-transplanter driving system |
| CN103899603A (en) * | 2014-04-16 | 2014-07-02 | 山东理工大学 | Device for collecting energy during braking and steering and enabling energy to be used for cooling hydraulic oil |
| CN205064715U (en) * | 2015-10-22 | 2016-03-02 | 吉首市宗南重工制造有限公司 | Mechanical type normal position turns to gearbox |
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| 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 |
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|---|---|
| CN110159725B (en) | 2020-05-01 |
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