CN110469649A - A kind of electrichydraulic control shift transmission - Google Patents
A kind of electrichydraulic control shift transmission Download PDFInfo
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- CN110469649A CN110469649A CN201910832159.2A CN201910832159A CN110469649A CN 110469649 A CN110469649 A CN 110469649A CN 201910832159 A CN201910832159 A CN 201910832159A CN 110469649 A CN110469649 A CN 110469649A
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- spool
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Classifications
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
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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
-
- 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
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H2047/025—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the fluid gearing comprising a plurality of pumps or motors
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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
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
- F16H2061/185—Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention discloses a kind of electrichydraulic control shift transmission, including hydraulic shift system, power feed system, two axis and power output system, the both ends of two axis are connect with housing into rotation, first speed driven gear is provided on two axis, tooth hub and two grades of driven gears, first speed driven gear and two grades of driven gears are free gear, tooth hub and two axis are sequentially connected, first speed driven gear and two grades of driven gears are sequentially connected with power feed system, two axis and power output system are sequentially connected, sliding engaged transmission part is engaged with tooth hub, sliding engaged transmission part is used to the power of first speed driven gear or two grades of driven gears being transferred to tooth hub, or disconnect the transmission connection of tooth hub, hydraulic shift system is for moving sliding engaged transmission part along two axis axial reciprocatings.Electrichydraulic control shift transmission provided by the invention, it is easy to operate, without the direct gear shift of gear selecting, shorten shift time, reduces power loss.
Description
Technical field
The present invention relates to gearbox technical field more particularly to electrichydraulic control shift transmissions.
Background technique
Currently, agricultural harvesting machinery gearbox in the prior art generallys use the mode of mechanical manual shift, i.e., it is mechanical
Handle+pull rod or mechanical handle+bracing wire form, there is the problems such as adjustment is difficult and labor intensity is high in this gear changing mode, special
It is not needing frequently to turn around in central plain area, turn, needing to carry out buty shifting, increase the labor intensity of machine hand in this way；In
It with parts wear in use process, needs often to be adjusted shift mechanism, such as adjusts not in time, be likely to result in and nibble
The secondary failure such as trap abrasion and change gear abrasion；Mechanical gear shift mode carries out gear selecting, the mistake of gear shift after usually requiring clutch
Journey, which adds the times of gear shift, cause the consumption and waste of the energy.
Summary of the invention
The present invention is intended to provide electrichydraulic control shift transmission, easy to operate, easy to maintenance, high reliablity is realized without choosing
Shelves the direct gear shift of process, shorten shift time, reduce gearshift procedure in power loss, improve dynamic property, fuel economy and
Driver comfort.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
Electrichydraulic control shift transmission disclosed by the invention, including hydraulic shift system, shell, power feed system, two
Axis, sliding engaged transmission part and power output system, the both ends of two axis are connect with the housing into rotation, on two axis
First speed driven gear, tooth hub and two grades of driven gears are disposed with along its axial direction, the first speed driven gear and two grades described
Driven gear is free gear, and the tooth hub and two axis are sequentially connected, the first speed driven gear and it is described two grades from
Moving gear is sequentially connected with the power feed system, and two axis and the power output system are sequentially connected, the liquid
Pressure gear change system is fixedly connected with the shell, and the sliding engaged transmission part is engaged with the tooth hub；
The hydraulic shift system is used to that the sliding engaged transmission part to be driven to move along the two axis axial reciprocating, so that
Sliding engaged transmission part only engage with the tooth hub realize neutral gear or the sliding engaged transmission part and meanwhile with the tooth
Hub and the first speed driven gear engagement realize one grade or the sliding engaged transmission part and meanwhile with the tooth hub and described two
Shelves driven gear engagement realizes two grades.
The beneficial effects of the present invention are: power is transmitted to power feed system first speed driven gear respectively and two grades driven
On gear, when be in neutral position state when, sliding engaged transmission part only engaged with tooth hub, due to first speed driven gear and two grades it is driven
Gear is free gear, when sliding engaged transmission part is not engaged with first speed driven gear or two grades of driven gears, two axis
Not output power, when needing to shift gears, power feed system stops power input, hydraulic shift system drive sliding engaged transmission part
Moved along two axis axial directions, drive sliding engaged transmission part moved axially back and forth along two axis, when sliding engaged transmission part simultaneously
When being engaged with first speed driven gear and tooth hub, one grade of shift is completed, starts power feed system, one grade of driven tooth after the completion of shift
The power of wheel is transmitted on tooth hub by sliding engaged transmission part, and tooth hub and two axis are sequentially connected, and tooth hub drives two axis to rotate, and two
Axis and power output system are sequentially connected, at this point, being exported by power output system according to one grade of speed；When sliding engagement passes
When moving part is engaged with two grades of driven gears and tooth hub simultaneously, two grades of shifts are completed, starting power feed system after the completion of shift, two
The power of shelves driven gear is transmitted on tooth hub by sliding engaged transmission part, and tooth hub drives the rotation of two axis, and defeated by power
Power is transmitted and is exported according to two grades of speed by system out, is slid engaged transmission part by hydraulic shift system drive and is back and forth moved
Dynamic, easy to operate, easy to maintenance, high reliablity is realized without the direct gear shift of gear selecting process, shortens shift time, reduces gear shift
Power loss in journey improves dynamic property, fuel economy and driver comfort.
Further, the hydraulic shift system includes the first cylinder body, the second cylinder body, first piston component, second piston
Component, fork and fork shaft, first cylinder body and second cylinder body are relatively arranged on the shell two sides, the first piston
Component slippage is set in first cylinder body and first inner chamber of cylinder block is divided into the first oil pocket and the first fork shaft chamber, institute
It states the first oil pocket and is provided with the first oil inlet, the second piston component slippage is set in second cylinder body and by described second
Inner chamber of cylinder block is divided into the second oil pocket and the second fork shaft chamber, and second oil pocket is provided with the second oil inlet, the both ends of the fork shaft
It is slideably positioned in the first fork shaft chamber respectively and second fork shaft is intracavitary, the fork shaft end intracavitary in first fork shaft
Portion is abutted with the first piston component, and the fork shaft is supported in the intracavitary end of second fork shaft with the second piston component
It connects, the fork shaft is slidably connected and parallel with two axis with the shell, and the fork is fixedly connected with the fork shaft, described
Fork is in the shell and for driving the sliding engaged transmission part to move along the two axis axial reciprocating.
Beneficial effect using above-mentioned further scheme is: hydraulic oil is injected to the first oil pocket by the first oil inlet, it can
Keep first piston components drive fork shaft and fork mobile to the second cylinder body direction, liquid is injected to the second mailbox by the second oil inlet
Pressure oil can make second piston components drive fork shaft and fork mobile to the second cylinder body direction, so that fork is driven sliding engagement with this
Driving member is moved along two axis axial reciprocatings, realizes gear shift, and whole process is easy to operate, is realized without the direct gear shift of gear selecting process, contracting
Short shift time reduces the power loss in gearshift procedure, high reliablity, good economy performance.
Further, the power feed system have hydraulic motor, the output end of the hydraulic motor with described one grade
Driven gear and two grades of driven gears are sequentially connected, and are provided with the first motor connector in the middle part of first cylinder body, and described
Be provided with the second motor connector in the middle part of two cylinder bodies, the first motor connector and the second motor connector with it is described
Hydraulic motor connection, the first piston component have first piston oil duct, and the second piston component has second piston oil
Road；
When putting in the first speed, second oil pocket is connected to by the second piston oil duct with the second motor connector；
When hanging two grades, first oil pocket is connected to by the first piston oil duct with the first motor connector.
Beneficial effect using above-mentioned further scheme is: providing power by hydraulic motor, when shift, hydraulic motor stops
Power input, before gear shift completion, section hydraulic oil is flowed into hydraulic by the first motor connector or the second motor connector
Motor, driving hydraulic motor drive an axis to turn an angle, and smoothly cut first speed driven gear convenient for sliding engaged transmission part
It either the conjunction gear of two grades of driven gears and is engaged with first speed driven gear or two grades of driven gears, avoids passing in sliding engagement
In moving process, there is " tooth is to tooth " with first speed driven gear or two grades of driven gears and shows moving part in sliding engaged transmission part
As being unable to complete engagement, the phenomenon that not hanging gear occur.
Further, the first piston component includes first piston and the first spool, the first piston sliding setting
In in first cylinder body, and first inner chamber of cylinder block is divided into the first oil pocket and the first fork shaft chamber, the first piston
With the first spool mounting hole for running through its moving direction both ends, first spool is threaded through the first spool mounting hole
Interior, the first piston has first piston component holes, and first spool has the first spool slot, when hanging two grades, described the
One piston component hole is connected to the first motor connector and the first spool slot is connected to first oil pocket, and described
One spool slot is connected to form the first piston oil duct with the first piston component holes；
The second piston component includes second piston and the second spool, and the second piston is slideably positioned in described second
In cylinder body, and second inner chamber of cylinder block is divided into the second oil pocket and the second fork shaft chamber, the second piston, which has, runs through it
The second spool mounting hole at moving direction both ends, first spool are threaded through in the first spool mounting hole, and described second
Piston has second piston hole, and second spool has the second spool slot, when putting in the first speed, the second piston hole and described the
Two motor connector is connected to and the second spool slot is connected to second oil pocket, and the second spool slot and described second is lived
Consent is connected to form the second piston oil duct.
Beneficial effect using above-mentioned further scheme is: reaching first speed driven gear or two in sliding engaged transmission part
Before the end of shelves driven gear, hydraulic oil inside hydraulic shift system will not enter hydraulic motor, first piston oil duct and
Second piston oil duct blocks, and reduces the hydraulic fluid leak in the first oil pocket and the second oil pocket, makes the first oil pocket or the second oil pocket
It is interior that enough thrust is kept to push fork shaft and fork mobile, fork drive sliding engaged transmission part reach first speed driven gear or
When two grades of driven gear end positions, first piston oil duct or second piston oil duct are connected to hydraulic motor, make hydraulic oil into
Enter hydraulic motor, driving one axis rotation.
It further, further include the first guide-localization set and the second guide-localization set, the first guide-localization set is fixed
In one end of the intracorporal close housing cavity of first cylinder, the second guide-localization set is fixed on second cylinder body
Interior one end close to the housing cavity, the fork shaft are slideably positioned in the first guide-localization set and second guiding
In positioning sleeve, first spool is slideably positioned in the first spool mounting hole, and second spool is slideably positioned in institute
It states in the second spool mounting hole；
When hanging second gear, the end of the first piston is abutted with first guide-localization set, and first spool continues
Push the fork shaft is mobile to engage the sliding engaged transmission part with two grades of driven gears, and the first spool slot and
First oil pocket disconnects；
When putting in the first speed, the end of the second piston is abutted with second guide-localization set, and second spool continues
Push the fork shaft is mobile to engage the sliding engaged transmission part with the first speed driven gear, and the second spool slot and
Second oil pocket disconnects.
Beneficial effect using above-mentioned further scheme is: the first spool slides in first piston, when first piston moves
Move to the first guide-localization set and abut, first piston oil duct connection the first oil pocket and the first motor connector, the first spool after
Continuous mobile completion gear shift, first spool slot and the first oil pocket disconnect after the first spool is mobile, the oil inlet no longer into hydraulic motor；Or
The second spool of person slides in second piston, abuts when second piston is moved to the second guide-localization set, second piston oil duct
It is connected to the second oil pocket and the second motor connector, the second spool continues to move to complete gear shift, the second spool after the second spool is mobile
Slot and the second oil pocket disconnect, the oil inlet no longer into hydraulic motor.
It further, further include lock ball, the outer wall of the fork shaft successively opens the first locking hole, the second locking along axial direction
Hole and third locking hole, the shell and the fork shaft slide contact part are separated by the locking channel mobile for the lock ball,
Locking channel lower ending opening, the lock ball is by elastic spacing in the locking channel；
When hanging second gear, the lower end and the first locking hole face, the lock ball lower part in the locking channel are embedded in institute
It states in the first locking hole, the top of the lock ball is in the locking channel；
When hanging neutral gear, the lower end and the second locking hole face, the lock ball lower part in the locking channel are embedded in institute
It states in the second locking hole, the top of the lock ball is in the locking channel；
When putting in the first speed, the lower end and the third locking hole face, the lock ball lower part in the locking channel are embedded in institute
It states in third locking hole, the top of the lock ball is in the locking channel.
Beneficial effect using above-mentioned further scheme is: after completed gear shift, lock ball lower part is embedded in corresponding locking
In hole, and cooperate with locking channel, fork shaft can be prevented mobile, keep sliding engaged transmission part to engage with corresponding component, avoid
The random movement of fork shaft in non-gearshift.
Further, the power output system passes gear and differential mechanism including three axis, three axis commonly engaged gears, three axis eventually,
Three axis is parallel with two axis and both ends are connect with the housing into rotation, and the three axis commonly engaged gear and three axis are whole
It passes gear to be fixedly connected with three axis, two axis commonly engaged gears has also been fixedly and coaxially connected on two axis, three axis is normal
It closes gear to engage with the two axis commonly engaged gear, three axis passes gear eventually and engages with the input gear of the differential mechanism, described
The power of power feed system input is exported by the differential mechanism.
Beneficial effect using above-mentioned further scheme is: the power of two axis often closes tooth by two axis commonly engaged gears and three axis
Wheel is transferred to three axis, then is transferred to differential mechanism output, it can be achieved that automobile left and right driving wheel realizes that different rotating speeds turn by three axis
It is dynamic.
It further, further include the first brake and second brake, the differential mechanism has the first output shaft and second
Opposite with the shell two sides rotation connection respectively of output shaft, first output shaft and second output shaft, described the
One brake and the second brake are respectively arranged at the opposite two sides of the shell, and first brake is for braking institute
The first output shaft is stated, the second brake is for braking second output shaft.
Beneficial effect using above-mentioned further scheme is: can brake respectively to two output shafts of differential mechanism.
It further, further include third brake, the third brake is set to its of three axis on the shell
At middle one end, the third brake is for braking three axis.
Beneficial effect using above-mentioned further scheme is: can directly brake to three axis, prevent power output.
Further, the power feed system has an axis, one grade of driving gear and two grades of driving gears, an axis
Parallel and both ends are rotatablely connected with shell with two axis, and one grade of driving gear and two grades of driving gears are and institute
An axis is stated to be fixedly and coaxially connected, one grade of driving gear is engaged with the first speed driven gear, two grades of driving gears with
Two grades of driven gears engagement.
Beneficial effect using above-mentioned further scheme is: by an axis provide power, one grade of driving gear and one grade it is driven
Gear remains with two grades of driven gears with two grades of driving gears and engages that power passes through one grade of driving gear or two grades of actives
Gear transmitting output.
Detailed description of the invention
Fig. 1 is one of the schematic diagram of the embodiment of the present invention；
Fig. 2 is the two of the schematic diagram of the embodiment of the present invention；
Schematic diagram when Fig. 3 is neutral gear of the embodiment of the present invention；
Schematic diagram when Fig. 4 is one grade of the embodiment of the present invention；
Schematic diagram when Fig. 5 is two grades of the embodiment of the present invention；
Fig. 6 is the first cylinder body and first piston component connection schematic diagram of the embodiment of the present invention；
In figure: 1- shell, 2- motor, 21- coupling sleeve, mono- axis of 3-, mono- grade of driving gear of 31-, bis- grades of driving gears of 32-,
Bis- axis of 4-, 41- first speed driven gear, 42- tooth hub, bis- grades of driven gears of 43-, bis- axis commonly engaged gear of 44-, 45- sliding engagement pass
Moving part, 46- conjunction gear, tri- axis of 5-, tri- axis commonly engaged gear of 51-, 52- tri- axis pass eventually gear, 6- differential mechanism, 61- differential mechanism it is defeated
Enter gear, the first output shaft of 62-, the second output shaft of 63-, the first brake of 71-, 72- second brake, 73- third brake,
The first cylinder body of 81-, the first oil inlet of 811-, the first motor of 812- connector, the first oil return hole of 813-, 814- first adjust spiral shell
Bolt, the first oil pocket of 815-, the first fork shaft of 816- chamber, 817- first adjust threaded hole, the second cylinder body of 82-, the second oil inlet of 821-,
The second motor of 822- connector, the second oil return hole of 823-, 824- second adjust bolt, the second oil pocket of 825-, the second fork shaft of 826-
Chamber, 827- second adjust threaded hole, 83- first piston component, the first spool of 831-, the first spool of 8311- slot, 832- first and live
Plug, 8321- first piston hole, 84- second piston component, the second spool of 841-, the second spool of 8411- slot, 842- second piston,
8421- second piston hole, 85- fork shaft, 86- fork, 87- lock ball, the first guide-localization of 881- set, the first positioning sleeve of 8811-
Oil return hole, the second guide-localization of 882- set, the second positioning sleeve of 8821- oil return hole, 89- elastic spring.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in figs 1 to 6, electrichydraulic control shift transmission disclosed by the invention, including hydraulic shift system, shell 1,
Power feed system, power output system, two axis 4,41, two grades of driven gears 43 of first speed driven gear, tooth hub 42, sliding engagement
Driving member 45 and two axis commonly engaged gears 44, power feed system have motor 2, an axis 3, one grades of driving gears 31, second gear masters
Moving gear 32, power output system include three axis 5, three axis commonly engaged gears 51, and an axis 3, two axis 4 and three axis 5 are mutual in shell 1
It is arranged in parallel and the both ends of an axis 3, two axis 4 and three axis 5 pass through bearing and shell 1 is rotatablely connected, one end of an axis 3 passes through flower
The output axis connection of bonded female connector 21 and motor 2, the preferably hydraulic motor of motor 2, input shaft of the axis 3 as gearbox, one
One grade of driving gear 31 and two grades of driving gears 32, one grade of driving gear 31 and two grades of masters are disposed with along its axial direction on axis 3
Moving gear 32 is fixedly and coaxially connected with an axis 3, and one grade of driving gear 31 and two grades of driving gears 32 can pass through spline and one
Axis 3 connects, and one grade of driving gear 31 and two grades of driving gears 32 can also be rigidly connected with an axis 3, connect preferably by spline,
First speed driven gear 41,42, two grades of driven gears 43 of tooth hub and two axis commonly engaged gears are disposed with along its axial direction on two axis 4
44, first speed driven gear 41 and two grades of driven gears 43 are free gear, and tooth hub 42 is connect with two axis 4 by spline drived, two
Axis commonly engaged gear 44 is fixedly and coaxially connected with two axis 4, is preferably rigidly connected, and three axis commonly engaged gears 51 and three axis 5 are coaxial fixed
Connection, is preferably rigidly connected, first speed driven gear 41 is engaged with one grade of driving gear 31, two grades of driven gears 43 and two grades of masters
Moving gear 32 engages, and two axis commonly engaged gears 44 are engaged with three axis commonly engaged gears 51, and hydraulic shift system is fixedly connected with shell 1,
Sliding engaged transmission part 45 is engaged with tooth hub 42, and first speed driven gear 41 and two grades of driven gears 43 are set close to the end of tooth hub 42
It is equipped with the conjunction gear 46 being adapted to sliding engaged transmission part 45.
Sliding engaged transmission part 45 is used to the power of first speed driven gear 41 or two grades of driven gears 43 being transferred to tooth
Hub 42, or disconnect the transmission connection of first speed driven gear 41 and two grades of driven gears 43 and tooth hub 42.
Hydraulic shift system is for driving sliding engaged transmission part 45 to move along two axis, 4 axial reciprocating, so that sliding is engaged
Driving member 45 is only engaged with tooth hub 42, is at this time neutral gear；Or sliding engaged transmission part 45 is driven with tooth hub 42 and one grade simultaneously
The conjunction gear 46 of gear 41 engages, and is at this time one grade；Or sliding engaged transmission part 45 simultaneously with tooth hub 42 and two grades of driven tooths
The conjunction gear 46 of wheel 43 engages, and is at this time two grades.
Three axis 5 are used for power output, and engaging sleeve or shifting slide gear can be selected in sliding engaged transmission part 45.
When 2 output power of motor, motor 2 drives an axis 3 rotation, and an axis 3 drives one grade of driving gear 31 and two thereon
Shelves driving gear 32 rotates, and power is transmitted to first speed driven gear 41 by one grade of driving gear 31 and two grades of driving gears 32 respectively
On two grades of driven gears 43, when be in neutral position state when, sliding engaged transmission part 45 only engaged with tooth hub 42, due to one grade from
Moving gear 41 and two grades of driven gears 43 are free gear, sliding engaged transmission part 45 not with first speed driven gear 41 or
When two grades of driven gears 43 engage, the unpowered input of two axis 4, when needing to shift gears, motor 2 stops input power, hydraulic shift system
System driving sliding engaged transmission part 45 moved along two axis, 4 axial direction, drive sliding engaged transmission part 45 along two axis 4 axially back and forth
It is mobile, when sliding engaged transmission part 45 is engaged with first speed driven gear 41 and tooth hub 42 simultaneously, one grade of shift is completed, has been shifted gears
At rear starter motor 2, the power of first speed driven gear 41 is transmitted on tooth hub 42 by sliding engaged transmission part 45, tooth hub 42 with
Two axis 4 are connected by spline, and tooth hub 42 drives the rotation of two axis 4, and will by two axis commonly engaged gears 44 and three axis commonly engaged gears 51
Power is transferred to three axis 5 and exports according to one grade of speed；When sliding engaged transmission part 45 simultaneously with two grades of driven gears 43 and
When tooth hub 42 engages, two grades of shifts are completed, the power of starter motor 2 after the completion of shift, two grades of driven gears 43 is nibbled by sliding
It closes driving member 45 to be transmitted on tooth hub 42, tooth hub 42 drives the rotation of two axis 4, and often closes tooth by two axis commonly engaged gears 44 and three axis
Power is transferred to three axis 5 and exported according to two grades of speed by wheel 51, slides engaged transmission part by hydraulic shift system drive
45 move back and forth, easy to operate, easy to maintenance, high reliablity, realize without the direct gear shift of gear selecting process, shorten shift time, subtract
Power loss in small gearshift procedure improves dynamic property, fuel economy and driver comfort.
Specifically, hydraulic shift system includes the first cylinder body 81, the second cylinder body 82, first piston component 83, second piston
842 components 84, fork 86 and fork shaft 85, the first cylinder body 81 and the second cylinder body 82 are relatively arranged on 1 two sides of shell, first piston group
Part 83 is slideably positioned in the first cylinder body 81 and 81 inner cavity of the first cylinder body is divided into the first oil pocket 815 and the first fork shaft chamber 823,
First oil pocket 815 is provided with the first oil inlet 811, and 842 component 84 of second piston is slideably positioned in the second cylinder body 82 and by second
82 inner cavity of cylinder body is divided into the second oil pocket 825 and the second fork shaft chamber 826, and the second oil pocket 825 is provided with the second oil inlet 821, fork shaft
85 both ends are slideably positioned in respectively in the first fork shaft chamber 823 and the second fork shaft chamber 826, and fork shaft 85 is in the first fork shaft chamber 823
End abutted with first piston component 83, end of the fork shaft 85 in the second fork shaft chamber 826 is supported with 842 component 84 of second piston
It connects, fork shaft 85 is slidably connected and parallel with two axis 4 with shell 1, and the fork 86 is fixedly connected with fork shaft 85, and fork 86 is in shell
Interior, one end of fork 86 is fixedly connected with fork shaft 85, and the other end of fork 86 is provided with for the sliding engaged transmission rotation of part 45
First limiting slot and the second limiting slot, the first limiting slot and the second limiting slot are set side by side, the both ends of sliding engaged transmission part 45
It is partially submerged into the first limiting slot and the second limiting slot respectively, sliding engaged transmission part 45 can be limited in the first limiting slot and second
The connection of rotation, fork 86 and engaging sleeve or shifting slide gear is the prior art in slot, and fork 86 is for driving sliding engagement
Driving member 45 is moved along two axis, 4 axial reciprocating.
Hydraulic oil is injected to the first oil pocket 815 by the first oil inlet 811, first piston component 83 can be made to push fork shaft 85
It is mobile to 82 direction of the second cylinder body with fork 86, hydraulic oil is injected to the second oil pocket by the second oil inlet 821, second can be made to live
Filling in 842 components 84 pushes fork shaft 85 and fork 86 mobile to 82 direction of the second cylinder body, makes fork 86 that sliding engagement be driven to pass with this
Moving part 45 is moved along two axis, 4 axial reciprocating, realizes gear shift.
As the further scheme of the present embodiment, the middle part of the first cylinder body 81 is provided with the first motor connector 812, the second cylinder
The middle part of body 82 is provided with the second motor connector 822, the first motor connector 812 and the second motor connector 822 with it is hydraulic
Motor 2 is connected to, and first piston component 83 has first piston oil duct, and 842 component 84 of second piston has second piston oil duct, sliding
When the end of the conjunction gear 46 of shifting engaged transmission part 45 and first speed driven gear 41 contacts, the second oil pocket 825 passes through second piston
Oil duct is connected to the second motor connector 822, the end of the conjunction gear 46 of sliding engaged transmission part 45 and two grades of driven gears 43
When contact, the first oil pocket 815 is connected to by first piston oil duct with the first motor connector 812.
When shift, hydraulic motor 2 stops power input, and before gear shift completion, section hydraulic oil is connected by the first motor
Mouth 812 or the second motor connector 822 flow into hydraulic motor 2, and driving hydraulic motor 2 drives an axis 3 to turn an angle, just
In sliding engaged transmission part 45 smoothly incision first speed driven gear 41 or two grades of driven gears 43 conjunction gear 46 and complete with
First speed driven gear 41 or two grades of driven gears 43 engage, and avoid the sliding in sliding engaged transmission part 45 in moving process
There is the phenomenon that " tooth is to tooth " in engaged transmission part 45 and first speed driven gear 41 or two grades of driven gears 43, are unable to complete and nibble
It closes, the phenomenon that not hanging gear occurs.
Specifically, first piston component 83 includes first piston 832 and the first spool 831, the sliding setting of first piston 832
It is that the first oil pocket 815 and the first fork shaft chamber 823, first piston 832 have in the first cylinder body 81, and by 81 inner cavity of the first cylinder body
Through its moving direction both ends and first spool mounting hole compatible with the first spool 831, the first spool 831 are installed on first
In spool mounting hole, first piston 832 has first piston hole 8321, and the first spool 831 has the first spool slot 8311, hangs two
When shelves, sliding engaged transmission part 45 is contacted with the end of the conjunction gear 46 of two grades of driven gears 43, first piston hole 8321 and the
One motor connector 812 is connected to and the first spool slot 8311 is connected to the first oil pocket 815, the first spool slot 8311 and first piston
The connection of hole 8321 forms first piston oil duct；842 component 84 of second piston include second piston 842 and the second spool 841, second
Piston 842 is slideably positioned in the second cylinder body 82, and by 82 inner cavity of the second cylinder body be the second oil pocket 825 and the second fork shaft chamber 826,
Second piston 842, which has, runs through its moving direction both ends and second spool mounting hole compatible with the second spool 841, the second valve
Core 841 is installed in the second spool mounting hole, and second piston 842 has second piston hole 8421, and the second spool 841 has second
Spool slot 8411, when putting in the first speed, sliding engaged transmission part 45 is contacted with the end of 41 conjunction gear 46 of first speed driven gear, and second is living
Consent 8421 is connected to the second motor connector 822 and the second spool slot 8411 is connected to the second oil pocket 825, the second spool slot
8411 are connected to form second piston oil duct with second piston hole 8421.
It is hydraulic before sliding engaged transmission part 45 reaches the end of first speed driven gear 41 or two grades of driven gears 43
Hydraulic oil inside gear change system will not enter hydraulic motor 2, and first piston oil duct and second piston oil duct block, and reduce first
Hydraulic fluid leak in oil pocket 815 and the second oil pocket 825, makes to keep enough in the first oil pocket 815 or the second oil pocket 825 to push away
It pushes moving fork axis 85 and fork 86 is mobile, fork 86 drives sliding engaged transmission part 45 to reach first speed driven gear 41 or two grades
When 43 end position of driven gear, first piston oil duct or second piston oil duct are connected to hydraulic motor 2, enter hydraulic oil
Hydraulic motor 2, one axis 3 of driving turn an angle.
It further include that the first guide-localization set 881 and the second guide-localization cover 882 as the further scheme of the present embodiment,
First guide-localization set 881 is fixed on one end of 1 inner cavity of close shell in the first cylinder body 81, and the second guide-localization set 882 is solid
Due to one end of 1 inner cavity of close shell in the second cylinder body 82, fork shaft 85 is slideably positioned in the first guide-localization set 881 and second
In guide-localization set 882, the first spool 831 is slideably positioned in the first spool mounting hole, and the second spool 841 is slideably positioned in the
In two spool mounting holes.
When hanging two grades, first piston component 83 pushes fork shaft 85 to make sliding engaged transmission part 45 and two grades of driven gears 43
The end of conjunction gear 46 contacts, and the end of first piston 832 is abutted with the first guide-localization set 881, and the first spool 831 continues to push away
Moving fork axis 85 is mobile to engage sliding engaged transmission part 45 with the conjunction gear 46 of two grades of driven gears 43, and the first spool slot 8311
It is disconnected with the first oil pocket 815.
When putting in the first speed, 842 component 84 of second piston pushes fork shaft 85 to make sliding engaged transmission part 45 and first speed driven gear
The end of 41 conjunction gear 46 contacts, and the end of second piston 842 covers 882 with the second guide-localization and abuts, the second spool 841 after
It is continuous to push fork shaft 85 is mobile to engage sliding engaged transmission part 45 with the conjunction gear 46 of first speed driven gear 41, and the second spool slot
8411 and second oil pocket 825 disconnect.
First spool 831 slides in first piston 832, when first piston 832 is moved to and the first guide-localization set 881
It abuts, first piston oil duct is connected to the first oil pocket 815 and the first motor connector 812, and the first spool 831 continues to move to complete to change
Shelves, first spool slot 8311 and the first oil pocket 815 disconnect after the first spool 831 is mobile, the no longer oil inlet into hydraulic motor 2；Or
The second spool of person 841 slides in second piston 842, abuts when second piston 842 is moved to the second guide-localization set 882,
Second piston oil duct is connected to the second oil pocket 825 and the second motor connector 822, the second spool 841 continue to move to complete gear shift, the
Second spool slot 8411 and the second oil pocket 825 disconnect after two spools 841 are mobile, the no longer oil inlet into hydraulic motor 2.
As the further scheme of the present embodiment, the both ends of the first spool 831 and the second spool 841 are socketed with steel wire gear
Circle 89, limit of the elastic spring 89 for the first spool 831 or the second spool 841 of its connection.Specifically, the first spool
831 and second spool 841 both ends outer wall be machined with annular circlip groove, elastic spring 89 one-to-one correspondence be embedded in circlip groove
It is interior.
As the further scheme of the present embodiment, the first fork shaft chamber 823 and the second fork shaft chamber 826 have the first oil return
Hole 813 and the second oil return hole 823, the first oil return hole 813 and the second oil return hole 823 with the hydraulic oil container for storing hydraulic oil
Connection has gap, between having between the second spool 841 and second piston 842 between the first spool 831 and first piston 832
Gap all has gap, the first guide-localization set between fork shaft 85 and the first guide-localization set 881 and the second guide-localization set 882
881 are provided with the first positioning sleeve oil return hole 8811 being connected to the first oil return hole 813, and the second guide-localization set 882 is provided with and second
The second positioning sleeve oil return hole 8821 that oil return hole 823 is connected to, gap and fork shaft between the first spool 831 and first piston 832
85 and first guide-localization set 881 between gap connection, gap and fork shaft between the second spool 841 and second piston 842
85 and the second gap connection between guide-localization set 882, the gap and first between fork shaft 85 and the first positioning and guiding set it is fixed
Position set oil return hole 8811 is connected to, and the gap and the second positioning sleeve oil return hole 8821 between fork shaft 85 and the second guide-localization set connect
It is logical.
Specifically, the first positioning sleeve oil return hole 8811 being arranged radially along the first guide-localization set 881, one end and first
Positioning sleeve oil return hole 8811 is connected to, and the gap between the other end and the first positioning sleeve and fork shaft 85 is connected to.First guide-localization set
The outsides of one end of 881 corresponding first positioning sleeve oil return holes 8811 also have the first oil-recovery tank of annular, the first oil-recovery tank and the
One end connection of oilhole 8811 is recovered in one positioning；Second positioning sleeve oil return hole 8821 is set along the radial direction of the second guide-localization set 882
It sets, one end is connected to the second positioning sleeve oil return hole 8821, and the gap between the other end and the second positioning sleeve and fork shaft 85 is connected to.
The outside of one end of the corresponding second positioning sleeve oil return hole 8821 of the second guide-localization set 882 also has the second oil-recovery tank of annular,
Second oil-recovery tank is connected to one end of the second positioning sleeve oil return hole 8821.
It further include fork shaft sealing ring, the first guide-localization set 881 and the second guiding as the further scheme of the present embodiment
Positioning sleeve 882 all has seal groove in positioning sleeve on the inside of one end of 1 inner cavity of shell, the first guide-localization set 881 and the
Fork shaft sealing ring is embedded in seal groove in the positioning sleeve of two guide-localizations set 882.
It further include the first adjusting bolt 814 and second adjusts bolt 824 as the further scheme of the present embodiment, first
One end of cylinder body 81 have with first piston component 83 be coaxially disposed first adjust threaded hole 817, first adjust bolt 814 and
First, which adjusts threaded hole 817, is threadedly coupled, and one end protrudes into the first oil pocket 815；One end of second cylinder body 82 has and second
The second of 842 component 84 of piston coaxial arrangement adjusts threaded hole 827, and second, which adjusts bolt 824 and second, adjusts 827 spiral shell of threaded hole
Line connection, one end protrudes into the second oil pocket 825, the first adjusting bolt 814 and the second adjusting bolt 824 can limit fork shaft 85 to
The mobile position in two sides.
It further include the first sealing nut and the second sealing nut, the first sealing spiral shell as the further scheme of the present embodiment
Female to be coaxially disposed and be fixedly connected on the outside of the first cylinder body 81 with the first adjusting threaded hole 817, first adjusts bolt 814 and the
One sealing nut is threadedly coupled；Second sealing nut and the second adjusting threaded hole 827 are coaxially disposed and are fixedly connected on the second cylinder
The outside of body 82, the second adjusting bolt 824 are threadedly coupled with the second sealing nut.
It further include the first sealing ring as the further scheme of the present embodiment, first piston 832 and second piston 842
Outer wall has the piston seal slot of annular, and piston seal slot position is in first piston hole 8321 or second piston hole 8421 and fork shaft
Between 85, the first sealing ring is embedded in the piston seal slot of first piston 832 and second piston 842, the first sealing ring is close
The gap between first piston 832 and the first cylinder body 81 and second piston 842 and the second cylinder body 82 is sealed, oil leak is avoided.
It further include the second sealing ring as the further scheme of the present embodiment, the first cylinder body 81 and the second cylinder body 82 are close
Cylinder body seal groove is equipped at the open opening's edge of 1 inner cavity of shell, in the cylinder body seal groove of the first cylinder body 81 and the second cylinder body 82
It is embedded with the second sealing ring.
It further include third sealing ring, the first guide-localization set 881 and the second guiding as the further scheme of the present embodiment
Lateral wall of the positioning sleeve 882 close to 1 inner cavity one end of shell all has positioning sleeve external seal slot, the first guide-localization set 881 and the
Third sealing ring is embedded in the positioning sleeve external seal slot of two guide-localizations set 882.
It further include lock ball 87 as the further scheme of the present embodiment, the upside outer wall of fork shaft 85 is successively opened along axial direction
There are the first locking hole, the second locking hole and third locking hole, shell 1 and 85 slide contact part of fork shaft are separated by be moved for lock ball 87
End closure and lower ending opening on channel are locked in dynamic locking channel, and locking channel is vertical, and 87 elastic spacing of lock ball is logical in locking
In road, holddown spring is provided with above lock ball 87, holddown spring both ends are abutted with lock ball 87 and locking channel upper end respectively,
By the first locking hole or the second locking hole or third locking hole and lock ball 87 and the cooperation of locking channel, by fork shaft 85 corresponding
Position is self-locking, prevents it along axial automatic moving, specific:
When hanging two grades, sliding engaged transmission part 45 is engaged with the conjunction gear 46 of tooth hub 42 and two grades of driven gears 43 simultaneously,
Lower end and the first locking hole face in channel are locked, 87 lower part of lock ball is embedded in the first locking hole, and the top of lock ball 87 exists
It locks in channel；
When hanging neutral gear, sliding engaged transmission part 45 is only engaged with tooth hub 42, and the lower end for locking channel and the second locking hole are just
Right, 87 lower part of lock ball is embedded in the second locking hole, and the top of lock ball 87 is in locking channel；
When putting in the first speed, sliding engaged transmission part 45 is engaged with the conjunction gear 46 of tooth hub 42 and first speed driven gear 41 simultaneously,
Lower end and the third locking hole face in channel are locked, 87 lower part of lock ball is embedded in third locking hole, and the top of lock ball 87 exists
It locks in channel.
After completed gear shift, 87 lower part of lock ball is embedded in corresponding locking hole, and is cooperated with locking channel, can prevent from pitching
Axis 85 is mobile, keeps sliding engaged transmission part 45 and the engagement of corresponding component, avoids the random of in non-gearshift fork shaft 85
It is mobile.
It further include differential mechanism 6 and three axis biography gear 52 eventually as the further scheme of the present embodiment, three axis pass gear 52 eventually
It is set on three axis 5 and is fixedly and coaxially connected with three axis 5, three axis pass gear 52 eventually and engage with the input gear 61 of differential mechanism, horse
Power up to 2 inputs is exported by three axis 5 by differential mechanism 6.
It further include the first brake 71, second brake 72 and third brake as the further scheme of the present embodiment
73, differential mechanism 6 has the first output shaft 62 and the second output shaft 63, the first output shaft 62 and the second output shaft 63 respectively with shell
1 opposite two sides rotation connection, the first brake 71 and second brake 72 are respectively arranged at the opposite two sides of shell 1, and first
Brake 71 is set for braking the first output shaft 62, second brake 72 for braking the second output shaft 63, third brake 73
It is placed on shell 1 at wherein one end of three axis 5, third brake 73 is used for dynamic triaxial 5 processed, and third brake 73 is hand braking
Device, it is the prior art that brake, which is connect to the method for brake axle with shell 1,.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and modifications, but these corresponding changes and modifications can be made according to the present invention by knowing those skilled in the art
All it should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. a kind of electrichydraulic control shift transmission, it is characterised in that: including hydraulic shift system, shell (1), power input system
System, two axis (4), sliding engaged transmission part (45) and power output system, the both ends of two axis (4) with the shell (1)
It is rotatablely connected, is disposed with first speed driven gear (41), tooth hub (42) and two grades of driven tooths along its axial direction on two axis (4)
Take turns (43), the first speed driven gear (41) and two grades of driven gears (43) are free gear, the tooth hub (42) and
Two axis (4) transmission connection, the first speed driven gear (41) and two grades of driven gears (43) are defeated with the power
Enter drive system connection, two axis and the power output system are sequentially connected, the hydraulic shift system and the shell
(1) it is fixedly connected, the sliding engaged transmission part (45) is engaged with the tooth hub (42)；
The hydraulic shift system is used to drive the sliding engaged transmission part (45) mobile along two axis (4) axial reciprocating,
So that the sliding engaged transmission part (45), which is only engaged with the tooth hub (42), realizes neutral gear or sliding engaged transmission part
(45) one grade of realization or sliding engaged transmission are engaged with the tooth hub (42) and the first speed driven gear (41) simultaneously
Part (45) engages two grades of realization with the tooth hub (42) and two grades of driven gears (43) simultaneously.
2. electrichydraulic control shift transmission according to claim 1, it is characterised in that: the hydraulic shift system includes the
One cylinder body (81), the second cylinder body (82), first piston component (83), second piston component (84), fork (86) and fork shaft (85),
First cylinder body (81) and second cylinder body (82) are relatively arranged on the shell (1) two sides, the first piston component
(83) be slideably positioned in first cylinder body (81) and by the first cylinder body (81) inner cavity be divided into the first oil pocket (815) and
First fork shaft chamber (816), first oil pocket (815) are provided with the first oil inlet (811), second piston component (84) sliding
It is set in second cylinder body (82) and the second cylinder body (82) inner cavity is divided into the second oil pocket (825) and the second fork shaft
Chamber (826), second oil pocket (825) are provided with the second oil inlet (821), and the both ends of the fork shaft (85) are slideably positioned in respectively
In the first fork shaft chamber (816) and the second fork shaft chamber (826), the fork shaft (85) is in the first fork shaft chamber (816)
Interior end is abutted with the first piston component (83), end of the fork shaft (85) in the second fork shaft chamber (826)
It is abutted with the second piston component (84), the fork shaft (85) and the shell (1) are slidably connected and put down with two axis (4)
Row, the fork (86) are fixedly connected with the fork shaft (85), and the fork (86) is in the shell and described for driving
Sliding engaged transmission part (45) is mobile along two axis (4) axial reciprocating.
3. electrichydraulic control shift transmission according to claim 2, it is characterised in that: the power feed system has liquid
Pressure motor (2), output end and the first speed driven gear (41) and two grades of driven gears (43) of the hydraulic motor (2) pass
It is dynamic to connect, it is provided with the first motor connector (812) in the middle part of first cylinder body (81), is opened in the middle part of second cylinder body (82)
There is the second motor connector (822), the first motor connector (812) and the second motor connector (822) are and institute
Hydraulic motor (2) connection is stated, the first piston component (83) has first piston oil duct, second piston component (84) tool
There is second piston oil duct；
When putting in the first speed, second oil pocket (825) is connected by the second piston oil duct and the second motor connector (822)
It is logical；
When hanging two grades, first oil pocket (815) is connected by the first piston oil duct and the first motor connector (812)
It is logical.
4. electrichydraulic control shift transmission according to claim 3, it is characterised in that: first piston component (83) packet
First piston (832) and the first spool (831) are included, the first piston (832) is slideably positioned in first cylinder body (81),
And the first cylinder body (81) inner cavity is divided into the first oil pocket (815) and the first fork shaft chamber (816), the first piston
(832) there is the first spool mounting hole through its moving direction both ends, first spool (831) is threaded through first valve
In core mounting hole, the first piston (832) has first piston component holes (8321), and first spool (831) has the
One spool slot (8311), when hanging two grades, the first piston component holes (8321) are connected to the first motor connector (812)
And the first spool slot (8311) is connected to first oil pocket (815), the first spool slot (8311) and described first
Piston component hole (8321) connection forms the first piston oil duct；
The second piston component (84) includes second piston (842) and the second spool (841), and the second piston (842) is sliding
It is dynamic to be set in second cylinder body (82), and the second cylinder body (82) inner cavity is divided into the second oil pocket (825) and second
Fork shaft chamber (826), the second piston (842) have through its moving direction both ends the second spool mounting hole, described first
Spool (831) is threaded through in the first spool mounting hole, and the second piston (842) has second piston hole (8421), institute
Stating the second spool (841) has the second spool slot (8411), when putting in the first speed, the second piston hole (8421) and second horse
Up to connector (822) connection and the second spool slot (8411) is connected to second oil pocket (825), the second spool slot
(8411) it is connected to form the second piston oil duct with the second piston hole (8421).
5. electrichydraulic control shift transmission according to claim 4, it is characterised in that: further include the first guide-localization set
(881) it is fixed in first cylinder body (81) with the second guide-localization set (882), the first guide-localization set (881)
Close to one end of the shell (1) inner cavity, the second guide-localization set (882) is fixed on leaning in second cylinder body (82)
One end of nearly shell (1) inner cavity, the fork shaft (85) are slideably positioned in the first guide-localization set (881) and described the
In two guide-localization sets (882), first spool (831) is slideably positioned in the first spool mounting hole, and described second
Spool (841) is slideably positioned in the second spool mounting hole；
When hanging second gear, the end of the first piston (832) is abutted with the first guide-localization set (881), first valve
Core (831), which continues to press on the fork shaft (85) movement, makes the sliding engaged transmission part (45) and two grades of driven gears (43)
Engagement, and the first spool slot (8311) and first oil pocket (815) disconnect；
When putting in the first speed, the end of the second piston (842) is abutted with the second guide-localization set (882), second valve
Core (841), which continues to press on the fork shaft (85) movement, makes the sliding engaged transmission part (45) and the first speed driven gear (41)
Engagement, and the second spool slot (8411) and second oil pocket (825) disconnect.
6. electrichydraulic control shift transmission according to claim 2, it is characterised in that: it further include lock ball (87), it is described
The outer wall of fork shaft (85) successively opens the first locking hole, the second locking hole and third locking hole, the shell (1) and institute along axial direction
It states fork shaft (85) slide contact part and is separated by the locking channel mobile for the lock ball (87), the locking channel lower end is opened
Mouthful, the lock ball (87) is by elastic spacing in the locking channel；
When hanging second gear, the lower end and the first locking hole face, lock ball (87) lower part in the locking channel are embedded in institute
It states in the first locking hole, the top of the lock ball (87) is in the locking channel；
When hanging neutral gear, the lower end and the second locking hole face, lock ball (87) lower part in the locking channel are embedded in institute
It states in the second locking hole, the top of the lock ball (87) is in the locking channel；
When putting in the first speed, the lower end and the third locking hole face, lock ball (87) lower part in the locking channel are embedded in institute
It states in third locking hole, the top of the lock ball (87) is in the locking channel.
7. electrichydraulic control shift transmission according to claim 1-6, it is characterised in that: the power take-off system
System includes that three axis (5), three axis commonly engaged gears (51), three axis pass gear (52) and differential mechanism (6) eventually, three axis (5) with it is described
Two axis (4) are parallel and both ends are rotatablely connected with the shell (1), and the three axis commonly engaged gear (51) and three axis pass tooth eventually
Wheel (52) is fixedly connected with three axis (5), and two axis commonly engaged gears (44) have also been fixedly and coaxially connected on two axis (4),
The three axis commonly engaged gear (51) is engaged with the two axis commonly engaged gear (44), and three axis passes gear (52) and the differential eventually
The input gear (61) of device engages, and the power of the power feed system input is exported by the differential mechanism (6).
8. electrichydraulic control shift transmission according to claim 7, it is characterised in that: further include the first brake (71) and
Second brake (72), the differential mechanism (6) have the first output shaft (62) and the second output shaft (63), first output shaft
(62) and second output shaft (63) opposite with the shell (1) two sides rotation connection respectively, first brake
(71) and the second brake (72) is respectively arranged at the opposite two sides of the shell (1), and first brake (71) is used
In braking first output shaft (62), the second brake (72) is for braking second output shaft (63).
9. electrichydraulic control shift transmission according to claim 7, it is characterised in that: it further include third brake (73),
The third brake (73) is set on the shell (1) at wherein one end of three axis (5), the third brake
(73) for braking three axis (5).
10. electrichydraulic control shift transmission according to claim 1-6, it is characterised in that: the power input
System has an axis (3), one grade of driving gear (31) and two grades of driving gears (32), and an axis (3) and two axis (4) are flat
Row and both ends are rotatablely connected with shell (1), one grade of driving gear (31) and two grades of driving gears (32) are and institute
An axis (3) to be stated to be fixedly and coaxially connected, one grade of driving gear (31) is engaged with the first speed driven gear (41), and described two grades
Driving gear (32) is engaged with two grades of driven gears (43).
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| CN201910832159.2A CN110469649B (en) | 2019-09-04 | 2019-09-04 | Electrohydraulic control gear shifting gearbox |
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| CN110469649B (en) | 2023-09-12 |
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