CN110425264A - A kind of control system and control method of electrichydraulic control gearbox - Google Patents
A kind of control system and control method of electrichydraulic control gearbox Download PDFInfo
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- CN110425264A CN110425264A CN201910832707.1A CN201910832707A CN110425264A CN 110425264 A CN110425264 A CN 110425264A CN 201910832707 A CN201910832707 A CN 201910832707A CN 110425264 A CN110425264 A CN 110425264A
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- spool
- hydraulic
- hydraulic cylinder
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 67
- 239000003921 oil Substances 0.000 claims description 187
- 238000004891 communication Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 10
- 239000010727 cylinder oil Substances 0.000 abstract 1
- 210000000515 tooth Anatomy 0.000 description 35
- 238000007789 sealing Methods 0.000 description 15
- 230000007935 neutral effect Effects 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The present invention discloses a kind of control system of electrichydraulic control gearbox, including hydraulic oil container, first hydraulic cylinder, second hydraulic cylinder, first piston component and second piston component, first hydraulic cylinder and the second hydraulic cylinder are oppositely arranged, first piston component slippage is set in the first hydraulic cylinder, second piston component slippage is set in the second hydraulic cylinder, fork shaft both ends are slided respectively to be arranged interior with the first hydraulic cylinder and the second hydraulic cylinder and abuts respectively with first piston component and second piston component, first hydraulic cylinder and the second hydraulic cylinder are connected to hydraulic oil container respectively, first valve and the second valve are respectively between the first hydraulic cylinder and the second hydraulic cylinder and hydraulic oil container, the invention also discloses above system control methods.The control system and control method of electrichydraulic control gearbox provided by the invention, control precision is high, shortens shift time, reduces the power loss in shift process.
Description
Technical field
The present invention relates to gearbox control technology field more particularly to the control systems and controlling party of electrichydraulic control gearbox
Method.
Background technique
Currently, agricultural harvesting machinery gearbox in the prior art generallys use the mode of mechanical, hand-driven 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 shift 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 the control system and control method of electrichydraulic control gearbox, control precision is high, good reliability,
Shorten shift time, reduces the power loss in shift process.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
The control system of electrichydraulic control gearbox disclosed by the invention, including hydraulic oil container, the first valve, the second valve,
First hydraulic cylinder, the second hydraulic cylinder, first piston component and second piston component, first hydraulic cylinder and described
Two hydraulic cylinders are oppositely arranged, and the first piston component slippage is set in first hydraulic cylinder and by first liquid
Compressing cylinder is divided into the first oil pocket and the first fork shaft chamber, and the second piston component slippage is set in second hydraulic cylinder
And second hydraulic cylinder is divided into the second oil pocket and the second fork shaft chamber, the both ends of fork shaft are slideably positioned in described respectively
One fork shaft chamber and second fork shaft are intracavitary and abut respectively with the first piston component and the second piston component, described
First oil pocket and second oil pocket pass through pipeline respectively and are connected to the oil outlet of the hydraulic oil container, the first valve setting
On pipeline between first oil pocket and the hydraulic oil container, second valve be set to second oil pocket with it is described
On pipeline between hydraulic oil container, the hydraulic oil container is energized to first oil pocket or second oil pocket.
The beneficial effects of the present invention are: closing the second valve when needing to shift gears to the second hydraulic cylinder direction, first is opened
Valve, hydraulic oil enter the first oil pocket, push first piston component mobile towards the second hydraulic cylinder direction, piston component pushes
Fork shaft, fork shaft drive fork, and fork pushes shift driving member, nibbles shift driving member and the driving cog in the second hydraulic cylinder direction
It closes, realizes and shift gears to the second hydraulic cylinder direction；When if desired shifting gears to the first hydraulic cylinder direction, the first valve is closed, is opened
The second valve is opened, hydraulic oil enters the second oil pocket, pushes second piston component mobile towards the first hydraulic cylinder direction, with above-mentioned
Identical principle when shifting gears to the second hydraulic cylinder direction, nibbles shift driving member and the driving cog in the first hydraulic cylinder direction
It closes, realizes and shift gears to the first hydraulic cylinder direction, the mobile distance of fork shaft is controlled by hydraulic oil, control precision is high, reliability
Good, no gear selecting process is directly shifted gears, and shortens shift time, reduces the power loss in shift process.
It further, further include hydraulic motor and third valve, the input of the output end and gearbox of the hydraulic motor
The oil outlet of end transmission connection, the hydraulic oil container is connected to by pipeline with the oil inlet end of the hydraulic motor, the hydraulic horse
The oil outlet reached is connected to by pipeline with the hydraulic oil container, the third valve be set to the hydraulic motor oil inlet end and
On pipeline between the oil outlet of the hydraulic oil container, the hydraulic oil container is energized to the hydraulic motor, the hydraulic motor
For to the gearbox input power.
Beneficial effect using above-mentioned further scheme is: by hydraulic motor to gearbox input power, needing to change
When gear, third valve is closed, hydraulic motor stops to gearbox input power, easy to control without clutch convenient for shift.
Further, the first motor connector is provided in the middle part of first hydraulic cylinder, second hydraulic cylinder
Middle part is provided with the second motor connector, the first motor connector and the second motor connector with the hydraulic motor
Oil inlet end connection, the first piston component have first piston oil duct, the second piston component have second piston oil
Road；
When fork shaft to the first drive range described in the first piston components drive, first oil pocket and first horse
It is connected to up to connector by the first piston oil duct；
When fork shaft to the second drive range described in the second piston components drive, second oil pocket and second horse
It is connected to up to connector by the second piston oil duct；
It is used by the hydraulic oil that the first motor connector and the second motor connector enter the hydraulic motor
In the driving hydraulic motor.
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 the input shaft of gearbox to turn an angle, and smoothly cut, avoid convenient for shift driving member
Driving member shift gears in moving process, the phenomenon that " tooth is to tooth " occur in shift driving member and the driving cog for needing to cut, can not be complete
At engagement, there is the phenomenon that not hanging gear.
Further, the first piston component includes first piston and the first spool, the first piston sliding setting
In in first hydraulic cylinder, and first hydraulic cylinder inner cavity is divided into the first oil pocket and the first fork shaft chamber, it is described
First piston has the first spool mounting hole through its moving direction both ends, and first spool is threaded through first spool
In mounting hole, the first piston has first piston component holes, and first spool has the first spool slot, the fork shaft position
When the first drive range, the first piston component holes be connected to the first motor connector and the first spool slot with
The first oil pocket connection, the first spool slot are 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 hydraulic cylinder, and second hydraulic cylinder inner cavity is divided into the second oil pocket and the second fork shaft chamber, the second piston tool
There is the second spool mounting hole through its moving direction both ends, second spool is threaded through in the second spool mounting hole,
The second piston has second piston component holes, and second spool has the second spool slot, and the fork shaft is located at second and changes
When gear is set, the second piston component holes are connected to the second motor connector and the second spool slot and described second
Oil pocket connection, the second spool slot are connected to form the second piston oil duct with the second piston component holes.
Beneficial effect using above-mentioned further scheme is: before shift driving member reaches drive range, hydraulic oil is not
Hydraulic motor can be entered, first piston oil duct and second piston oil duct block, and reduce hydraulic in the first oil pocket and the second oil pocket
Oil leakage makes that enough thrust is kept to push fork shaft mobile in the first oil pocket or the second oil pocket, when fork shaft reaches drive range,
First piston oil duct or second piston oil duct are connected to hydraulic motor, so that hydraulic oil is entered hydraulic motor, are driven gearbox
Input shaft rotation.
It further, further include the first guide-localization set and the second guide-localization set, the first guide-localization set is fixed
Intracavitary in first fork shaft, it is intracavitary that the second guide-localization set is fixed on second fork shaft, the fork shaft sliding setting
In in first guide-localization set and second guide-localization set, first spool is slideably positioned in first spool
In mounting hole, second spool is slideably positioned in the second spool mounting hole；
When the fork shaft is located at the first drive range, the end of the first piston is supported with the first guide-localization set
It connects, first spool, which continues to press on the fork shaft movement, makes the shift driving member complete shift, and the first spool slot
It is disconnected with first oil pocket；
When the fork shaft is located at the second drive range, the end of the second piston is supported with the second guide-localization set
It connects, second spool, which continues to press on the fork shaft movement, makes the shift driving member complete shift, and the second spool slot
It is disconnected with second oil pocket.
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.
Further, the first fork shaft chamber and the second fork shaft chamber have the first oil return hole and the second oil return
Hole, first oil return hole and second oil return hole are connected to the hydraulic oil container, first spool and described first
There is the first gap between piston, there is the second gap, the fork shaft and institute between second spool and the second piston
It states and is respectively provided with third space and the 4th gap between the first guide-localization set and second guide-localization set, described first leads
The first positioning sleeve oil return hole being connected to first oil return hole is provided with to positioning sleeve, the second guide-localization set is provided with and institute
The second positioning sleeve oil return hole of the second oil return hole connection, first gap and the first positioning sleeve oil return hole are stated described in
Third space connection, second gap is connected to the second positioning sleeve oil return hole by the 4th gap.
Beneficial effect using above-mentioned further scheme is: making the first gap, the second gap, third space and the 4th gap
The hydraulic oil of interior remnants may return to hydraulic oil container.
Further, the both ends of first spool and second spool are socketed with elastic spring, the steel wire gear
First spool or second spool for connecting it is enclosed to limit.
Beneficial effect using above-mentioned further scheme is: the first spool and the second spool are respectively in first piston and second
It is moved in piston, when wherein one end of spool is moved to first piston or concordant second piston end face, the steel wire of respective end
The end face that retaining ring can resist first piston perhaps second piston respective end avoids the first spool or the second spool living from first
Abjection in plug or second piston.
It further, further include controller, first valve and second valve are solenoid valve, first valve
Door and second valve are electrically connected with the controller and are controlled by the controller.
Beneficial effect using above-mentioned further scheme is: more accurate to the control of hydraulic oil convenient for control.
It further, further include gear position sensor, the gear position sensor and the controller carry out data communication, described
Gear position sensor is used to determine the position when fork completes different stalls shift.
Beneficial effect using above-mentioned further scheme is: before completing shift, keeping providing hydraulic oil to oil pocket, push away
Dynamic fork is mobile, and after gear position sensor detects that fork reaches predeterminated position completion shift, gear position sensor feeds back signal
To controller, controller controls corresponding valve and closes, and stops providing hydraulic oil to oil pocket, avoids shift excessive.
The control method of the control system of electrichydraulic control gearbox disclosed by the invention: above-mentioned electrichydraulic control speed change is used
The control system of case,
When shifting gears to second hydraulic cylinder direction, first valve is opened, closes second valve, it is described
Hydraulic oil in hydraulic oil container enters first hydraulic cylinder, pushes the first piston component, the first piston component
It pushes the fork shaft mobile towards second hydraulic cylinder direction, realizes and shift gears towards second hydraulic cylinder direction；
When shifting gears to first hydraulic cylinder direction, second valve is opened, closes first valve, it is described
Hydraulic oil in hydraulic oil container enters second hydraulic cylinder, pushes the second piston component, the second piston component
It pushes the fork shaft mobile towards first hydraulic cylinder direction, realizes and shift gears towards first hydraulic cylinder direction.
The beneficial effects of the present invention are: control precision is high, good reliability, no gear selecting process is directly shifted gears, when shortening shift
Between, reduce the power loss in shift process.
Detailed description of the invention
Fig. 1 is hydraulic motor, the first hydraulic cylinder, the second hydraulic cylinder and gearbox connection schematic diagram；
Fig. 2 is the hydraulic circuit schematic diagram of the embodiment of the present invention；
Fig. 3 is hydraulic motor, the first hydraulic cylinder, the second hydraulic cylinder and shell connection schematic diagram；
Fig. 4 is gearbox schematic diagram；
Fig. 5 is gearbox schematic diagram when hanging neutral gear；
Fig. 6 is gearbox schematic diagram when putting in the first speed；
Fig. 7 is gearbox schematic diagram when hanging two grades；
Fig. 8 is the first hydraulic cylinder and first piston component connection schematic diagram of the embodiment of the present invention；
Fig. 9 is present invention control signal transmission figure；
In figure: bis- grades of 1- shell, 2- hydraulic motor, 21- coupling sleeve, mono- axis of 3-, mono- grade of driving gear of 31-, 32- driving tooths
Wheel, 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- shift transmission
Part, 46- conjunction gear, tri- axis of 5-, tri- axis commonly engaged gear of 51-, tri- axis of 52- pass the input of gear, 6- differential mechanism, 61- differential mechanism eventually
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 hydraulic cylinder of 81-, the first oil inlet of 811-, the first motor of 812- connector, the first oil return hole of 813-, 814- first are adjusted
Bolt, the first oil pocket of 815-, the first fork shaft of 816- chamber, 817- first adjust threaded hole, the second hydraulic cylinder of 82-, 821- second
Oil inlet, the second motor of 822- connector, the second oil return hole of 823-, 824- second adjust bolt, the second oil pocket of 825-, 826- the
Y-bend axocoel, 827- second adjust threaded hole, 83- first piston component, the first spool of 831-, the first spool of 8311- slot, 832-
First piston, 8321- first piston hole, 84- second piston component, the second spool of 841-, the second spool of 8411- slot, 842-
Two pistons, 8421- second piston hole, 85- fork shaft, 86- fork, 87- lock ball, the first guide-localization of 881- set, 8811- first
Positioning sleeve 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. 1-9, the control system of electrichydraulic control gearbox disclosed by the invention, including it is hydraulic oil container, hydraulic
Motor 2, the first valve, the second valve, third valve, the first hydraulic cylinder 81, the second hydraulic cylinder 82, first piston component 83
With second piston component 84, gearbox is interior to have fork shaft 85, fork 86 and shift driving member 45, the first hydraulic cylinder 81 and second
Hydraulic cylinder 82 is oppositely arranged, and first piston component 83 is slideably positioned in the first hydraulic cylinder 81 and by the first hydraulic cylinder 81
It is divided into the first oil pocket 815 and the first fork shaft chamber 816, second piston component 84 is slideably positioned in the second hydraulic cylinder 82 and will
Second hydraulic cylinder 82 is divided into the second oil pocket 825 and the second fork shaft chamber 826, and the both ends of fork shaft 85 are slideably positioned in first respectively
Abuts in fork shaft chamber 816 and the second fork shaft chamber 826 and with first piston component 83 and second piston component 84 respectively, fork 86 and
Fork shaft 85 is fixedly connected, and the first oil pocket 815 is provided with the first oil inlet 811, and the second oil pocket 825 is provided with the second oil inlet 821, and first
Oil inlet 811 and the second oil inlet 821 are connected to by pipeline with the oil outlet of hydraulic oil container respectively, and the first valve is set to first
On pipeline between oil pocket 815 and hydraulic oil container, the second valve is set to the pipeline between the second oil pocket 825 and hydraulic oil container
On, the output end of hydraulic motor 2 and the input terminal of gearbox are sequentially connected, and the oil outlet of hydraulic oil container passes through pipeline and hydraulic horse
Oil inlet end up to 2 is connected to, and the oil outlet of hydraulic motor 2 is connected to by pipeline with hydraulic oil container, and third valve is set to hydraulic horse
Up to 2 oil inlet end and hydraulic oil container oil outlet between pipeline on, hydraulic motor 2 is used for gearbox input power.
Hydraulic oil container be used for the first oil pocket 815, the second oil pocket 825 and hydraulic motor 2 energize, hydraulic oil container it is preferable to use
The included hydraulic oil container of hydraulic motor 2.
Fork 86 is used to push the mobile transmission tooth engagement for making shift driving member 45 and different stalls of shift driving member 45 real
It now shifts gears, engaging sleeve or shifting slide gear can be selected in shift driving member 45.
Specifically, gearbox also has shell 1, power feed system, power output system, two axis 4, first speed driven gear
41, two grades of driven gears 43, tooth hub 42, shift driving member 45 and two axis commonly engaged gears 44, the first hydraulic cylinder 81 and second
Hydraulic cylinder 82 is relatively arranged on 1 two sides of shell, and fork shaft 85 is slidably connected and parallel with two axis 4 with shell 1, and fork 86 is in shell
In 1, one end of fork 86 is fixedly connected with fork shaft 85, and the other end of fork 86 is provided with first rotated for shift driving member 45
Limiting slot and the second limiting slot, the first limiting slot and the second limiting slot are set side by side, and part is distinguished at the both ends of shift driving member 45
It is embedded in the first limiting slot and the second limiting slot, shift driving member 45 can rotate in the first limiting slot and the second limiting slot, pull out
The connection of fork 86 and engaging sleeve or shifting slide gear is the prior art, and power feed system has 3, one grades of driving gears of an axis
31, two gear driving gear, power output system include three axis 5, three axis commonly engaged gears 51, and an axis 3 is transmission input shaft, two axis
4 be transmission shaft, three axis 5 are power output shaft, an axis 3, two axis 4 and three axis 5 are arranged in parallel in shell 1 and an axis 3, two
The both ends of axis 4 and three axis 5 pass through bearing and shell 1 is rotatablely connected, and one end of an axis 3 passes through spline coupling sleeve 21 and hydraulic horse
Output end up to 2 connects and the power that hydraulic motor 2 exports is transmitted in gearbox, sets gradually on an axis 3 along its axial direction
There are one grade of driving gear 31 and two grades of driving gears 32, one grade of driving gear 31 and two grades of driving gears 32 are coaxial with an axis 3
It is fixedly connected, one grade of driving gear 31 and two grades of driving gears 32 can be connect by spline with an axis 3, one grade of driving gear 31
It can also be rigidly connected with an axis 3 with two grades of driving gears 32, be connected preferably by spline, axially successively be set on two axis 4 along it
It is equipped with first speed driven gear 41,42, two grades of driven gears 43 of tooth hub and two axis commonly engaged gears 44, first speed driven gear 41, tooth hub
42 and two grades of driven gears 43 respectively as one grade, the driving cog of neutral gear and second gear, first speed driven gear 41 and two grades of driven tooths
Wheel 43 is free gear, and tooth hub 42 is connect with two axis 4 by spline drived, two axis commonly engaged gears 44 and the coaxial fixed company of two axis 4
It connecing, is preferably rigidly connected, three axis commonly engaged gears 51 are fixedly and coaxially connected with three axis 5, preferably it are rigidly connected, one grade of driven tooth
Wheel 41 is engaged with one grade of driving gear 31, and two grades of driven gears 43 are engaged with two grades of driving gears 32, two axis commonly engaged gears 44 and
The engagement of three axis commonly engaged gears 51, hydraulic shift system are fixedly connected with shell 1, and shift driving member 45 is engaged with tooth hub 42, and one grade
Driven gear 41 and two grades of driven gears 43 are provided with the conjunction gear 46 being adapted to shift driving member 45 close to the end of tooth hub 42.
Shift driving member 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.
Fork 86 for push shift driving member 45 moved along two axis, 4 axial reciprocating so that shift driving member 45 only with tooth
Hub 42 engages, and is at this time neutral gear；Or conjunction gear 46 of the shift driving member 45 simultaneously with tooth hub 42 and first speed driven gear 41 is nibbled
It closes, is at this time one grade；Or shift driving member 45 is engaged with the conjunction gear 46 of tooth hub 42 and two grades of driven gears 43 simultaneously, at this time
It is two grades.
The oil outlet of hydraulic oil container is provided with hydraulic pump, and the oil outlet of hydraulic oil container is connected to the oil inlet end of hydraulic pump, the
The oil inlet end of one oil pocket 815, the second oil pocket 825 and hydraulic motor 2 passes through pipeline connection, the first valve with the oil outlet of hydraulic pump
Door is on pipeline between the first oil pocket 815 and hydraulic pump, and the second valve is on the pipeline of the second oil pocket 825 and hydraulic pump, and the
Three valves are on the oil inlet end of hydraulic motor 2 and the pipeline of hydraulic pump.
When 2 output power of hydraulic motor, driving one axis 3 rotation a, axis 3 drives one grade of driving gear 31 and two grades thereon
Driving gear 32 rotates, and power is transmitted to 41 He of first speed driven gear by one grade of driving gear 31 and two grades of driving gears 32 respectively
On two grades of driven gears 43, when being in neutral position state, shift driving member 45 is only engaged with tooth hub 42, due to first speed driven gear
41 and two grades of driven gears 43 be free gear, shift driving member 45 not with first speed driven gear 41 or two grades of driven tooths
When 43 engagement of wheel, the unpowered input of two axis 4 when needing to shift gears, closes third valve, opens the first valve or the second valve,
Hydraulic oil enters the first oil pocket 815 or the second oil pocket 825, pushes fork shaft 85 mobile, and fork shaft 85 is mobile to drive fork 86 mobile,
Fork 86 pushes shift driving member 45 mobile, when driving member 45 of shifting gears is engaged with first speed driven gear 41 and tooth hub 42 simultaneously,
It completes one grade to shift gears, the first valve and the second valve is closed after the completion of shift, open third valve, first speed driven gear 41 moves
Power is transmitted on tooth hub 42 by driving member 45 of shifting gears, and tooth hub 42 is connect with two axis 4 by spline, and tooth hub 42 drives 4 turns of two axis
It is dynamic, and power is transferred to three axis 5 by two axis commonly engaged gears 44 and three axis commonly engaged gears 51 and is exported according to one grade of speed；
When driving member 45 of shifting gears is engaged with two grades of driven gears 43 and tooth hub 42 simultaneously, two grades of shifts are completed, are closed after the completion of shift
First valve and the second valve, open third valve, and the power of two grades of driven gears 43 is transmitted to tooth by driving member 45 of shifting gears
On hub 42, tooth hub 42 drives the rotation of two axis 4, and power is transferred to three by two axis commonly engaged gears 44 and three axis commonly engaged gears 51
Axis 5 simultaneously exports, easy to operate, easy to maintenance, high reliablity according to two grades of speed, realizes without the direct gear shift of gear selecting process, contracting
Short shift time reduces the power loss in gearshift procedure, improves dynamic property, fuel economy and driver comfort
It further include controller as the further scheme of the present embodiment, the first valve, the second valve and third valve are
Solenoid valve, the first valve, the second valve, third valve and hydraulic pump are electrically connected with the controller and are controlled by the controller, control
Device processed has control panel, and rocker switch is provided on control panel, and rocker switch is equipped with neutral gear, one grade and two grades of three gears
Position sends signals to control controller by rocker switch, and single-chip microcontroller or PLC can be selected in controller.
When rocker switch is from neutral gear to one grade or from two grades to neutral gear or from two grades to one grade, the first valve is closed,
The second valve is opened, hydraulic oil enters the second oil pocket 825, and fork 86 is pushed to drive shift driving member 45 to first speed driven gear 41
Direction is mobile, after completing shift, closes the second valve.
When rocker switch is from neutral gear to two grades or from one grade to neutral gear or from one grade to two grade, the second valve is closed,
The first valve is opened, hydraulic oil enters the first oil pocket 815, pushes fork 86 to drive and vigorously moves driving member to second gear driven gear direction
It is mobile, after completing shift, close the first valve.
It further include gear position sensor as the further scheme of the present embodiment, gear position sensor and controller carry out data
Communication, gear position sensor are used to determine position when fork 86 completes different stalls shift, and gear position sensor is set to gearbox
Interior, setting gear position sensor is the prior art in gearbox.
As the further scheme of the present embodiment, the middle part of the first hydraulic cylinder 81 is provided with the first motor connector 812, the
The middle part of two hydraulic cylinders 82 is provided with the second motor connector 822, the first motor connector 812 and the second motor connector 822
It is connected to the oil inlet end of hydraulic motor 2, first piston component 83 has first piston oil duct, and second piston component 84 has the
Two piston oil ducts.
When hanging two grades, first piston component 83 pushes 85 to the first drive range of fork shaft, shift gears driving member 45 and two grades from
The end of the conjunction gear 46 of moving gear 43 contacts, and the first oil pocket 815 is connected with the first motor connector 812 by first piston oil duct
It is logical；
When putting in the first speed, second piston component 84 pushes 85 to the second drive range of fork shaft, shift gears driving member 45 and one grade from
The end of the conjunction gear 46 of moving gear 41 contacts, and the second oil pocket 825 is connected with the second motor connector 822 by second piston oil duct
It is logical；
Enter the hydraulic oil of hydraulic motor 2 for driving by the first motor connector 812 and the second motor connector 822
Hydraulic motor 2.
Power is provided by hydraulic motor 2, when shift, hydraulic motor 2 stops power input, before gear shift completion, part liquid
Pressure oil flows into hydraulic motor 2 by the first motor connector 812 or the second motor connector 822, and driving hydraulic motor 2 drives
The input shaft of gearbox turns an angle, and first speed driven gear 41 and two grades of driven gears 43 is driven to turn an angle,
It smoothly cuts, avoids in shift driving member 45 in moving process, shift driving member 45 is cut with needs convenient for shift driving member 45
There is the phenomenon that " tooth is to tooth " in the driving cog entered, is unable to complete engagement, 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
In in the first hydraulic cylinder 81, and 81 inner cavity of the first hydraulic cylinder is divided into the first oil pocket 815 and the first fork shaft chamber 816,
One piston 832 has the first spool mounting hole through its moving direction both ends, and the first spool 831 is threaded through the installation of the first spool
In hole, first piston 832 has first piston component holes, and the first spool 831 has the first spool slot 8311, and fork shaft 85 is located at the
When one drive range, shift driving member 45 is contacted with the end of the conjunction gear 46 of two grades of driven gears 43, first piston component holes
It is connected to the first motor connector 812 and the first spool slot 8311 is connected to the first oil pocket 815, the first spool slot 8311 and first
Piston component hole is connected to form first piston oil duct；
Second piston component 84 includes that second piston 842 and the second spool 841, second piston 842 are slideably positioned in second
In hydraulic cylinder 82, and 82 inner cavity of the second hydraulic cylinder is divided into the second oil pocket 825 and the second fork shaft chamber 826, second piston
842 have the second spool mounting hole through its moving direction both ends, and the second spool 841 is threaded through in the second spool mounting hole,
Second piston 842 has second piston component holes, and the second spool 841 has the second spool slot 8411, and fork shaft 85 is located at second and changes
When gear is set, shift driving member 45 is contacted with the end of the conjunction gear 46 of first speed driven gear 41, second piston component holes and the
Two motor connector 822 is connected to and the second spool slot 8411 is connected to second oil pocket 825, the second spool slot 8411 and second
Piston component hole is connected to form second piston oil duct.
Shift driving member 45 reach drive range before, hydraulic oil will not enter hydraulic motor 2, first piston oil duct and
Second piston oil duct blocks, and reduces the hydraulic fluid leak in the first oil pocket 815 and the second oil pocket 825, make the first oil pocket 815 or
Enough thrust is kept to push fork shaft 85 and fork 86 mobile in second oil pocket 825, fork 86 drives shift driving member 45 to reach
When drive range, first piston oil duct or second piston oil duct are connected to hydraulic motor 2, and hydraulic oil is made to enter hydraulic motor 2,
The input shaft rotation for driving gearbox, makes first speed driven gear 41 and two grades of driven gears 43 turn an angle.
As the further scheme of the present embodiment, it further include the first guide-localization set 881 and the second guide-localization set 882,
First guide-localization set 881 is fixed in the first fork shaft chamber 816, and the second guide-localization set 882 is fixed on the second fork shaft chamber 826
Interior, fork shaft 85 is slideably positioned in the first guide-localization set 881 and the second guide-localization set 882, the sliding setting of the first spool 831
In in the first spool mounting hole, the second spool 841 is slideably positioned in the second spool mounting hole；
When hanging two grades, fork shaft 85 is located at the first drive range, the end of first piston 832 and the first guide-localization set 881
It abuts, the first spool 831 continues to press on the mobile driving member 45 that makes to shift gears of fork shaft 85 and completes shift, and the first spool slot 8311 and the
One oil pocket 815 disconnects；
When putting in the first speed, fork shaft 85 is located at the second drive range, the end of second piston 842 and the second guide-localization set 882
It abuts, the second spool 841 continues to press on the mobile driving member 45 that makes to shift gears of fork shaft 85 and completes shift, and the second spool slot 8411 and the
Two oil pockets 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 first fork shaft chamber 816 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 are connected to hydraulic oil container, the first spool 831
There is the first gap between first piston 832, there is the second gap, fork shaft 85 between the second spool 841 and second piston 842
Third space and the 4th gap, the first guiding are respectively provided between the first guide-localization set 881 and the second guide-localization set 882
Positioning sleeve 881 is 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
The second positioning sleeve oil return hole 8821 being connected to the second oil return hole 823, the first gap pass through with the first positioning sleeve oil return hole 8811
Third space connection, the second gap is connected to the second positioning sleeve oil return hole 8821 by the 4th gap.
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.
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 other end is connected to third space.The corresponding first positioning sleeve oil return of first guide-localization set 881
The outside of the one end in hole 8811 also have annular the first oil-recovery tank, the one of the first oil-recovery tank and the first positioning sleeve oil return hole 8811
End connection；Second positioning sleeve oil return hole 8821 is arranged radially along the second guide-localization set 882, and one end is recovered with the second positioning
Oilhole 8821 is connected to, and the other end is connected to the 4th gap, the corresponding second positioning sleeve oil return hole 8821 of the second guide-localization set 882
The outside of one end also has the second oil-recovery tank of annular, and the 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 hydraulic cylinder 81 has be coaxially disposed with first piston component 83 first to adjust threaded hole 817, and first adjusts bolt
814 are threadedly coupled with the first adjusting threaded hole 817, and one end protrudes into the first oil pocket 815；One end of second hydraulic cylinder 82 has
There is be coaxially disposed with second piston component 84 second to adjust threaded hole 827, second, which adjusts bolt 824 and second, adjusts threaded hole
827 are threadedly coupled, and one end protrudes into the second oil pocket 825, and the first adjusting bolt 814 and the second adjusting bolt 824 can limit fork
The position mobile to two sides of axis 85.
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 hydraulic cylinder 81 with the first adjusting threaded hole 817, first adjusts bolt 814
It is threadedly coupled with the first sealing nut；Second sealing nut and the second adjusting threaded hole 827 are coaxially disposed and are fixedly connected on the
The outside of two hydraulic cylinders 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 hydraulic cylinder 81 and second piston 842 and the second hydraulic cylinder 82 is sealed, avoids leaking
Oil.
It further include the second sealing ring, the first hydraulic cylinder 81 and the second hydraulic oil as the further scheme of the present embodiment
Cylinder 82 is equipped with cylinder body seal groove, the first hydraulic cylinder 81 and the second hydraulic cylinder at the open opening's edge of 1 inner cavity of shell
The second sealing ring is embedded in 82 cylinder body seal groove.
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, shift driving member 45 is engaged with the conjunction gear 46 of tooth hub 42 and two grades of driven gears 43 simultaneously, is locked
The lower end in channel and the first locking hole face, 87 lower part of lock ball are embedded in the first locking hole, and the top of lock ball 87 is being locked
In channel；
When hanging neutral gear, shift driving member 45 is only engaged with tooth hub 42, locks lower end and the second locking hole face in channel, lock
Tight 87 lower part of 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, shift driving member 45 is engaged with the conjunction gear 46 of tooth hub 42 and first speed driven gear 41 simultaneously, is locked
The lower end in channel and third locking hole face, 87 lower part of lock ball are embedded in third locking hole, and the top of lock ball 87 is being locked
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 shift driving member 45 and corresponding transmission tooth engagement, avoids the random shifting of the fork shaft 85 in non-gearshift
It is dynamic.
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 input 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,.
The control method of the control system of electrichydraulic control gearbox disclosed by the invention: above-mentioned electrichydraulic control speed change is used
The control system of case,
When to 82 direction of the second hydraulic cylinder shift gears when, including one grade to neutral gear switch or neutral gear to two grades switching or
One grade switches to second gear, opens the first valve, closes the second valve, and hydraulic oil enters the first hydraulic cylinder 81, and promotion first is living
Plug assembly 83, first piston component 83 push fork shaft 85 to drive fork 86 mobile towards 82 direction of the second hydraulic cylinder, make to shift gears
Driving member 45 and corresponding transmission tooth engagement are realized and are shifted gears to 82 direction of the second hydraulic cylinder；
When shifting gears to 81 direction of the first hydraulic cylinder, including second gear switches to neutral gear or neutral gear switches to one grade
Or two grades to one grade switch, and opens the second valve, closes the first valve, hydraulic oil enters the second hydraulic cylinder 82, pushes the
Two piston components 84, second piston component 84 push fork shaft 85 to drive fork 86 mobile towards 81 direction of the first hydraulic cylinder, make
It shifts gears driving member 45 and corresponding transmission tooth engagement, realizes to the shift of 81 direction of the first hydraulic cylinder.
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 control system of electrichydraulic control gearbox, it is characterised in that: including hydraulic oil container, the first valve, the second valve,
First hydraulic cylinder (81), the second hydraulic cylinder (82), first piston component (83) and second piston component (84), described first
Hydraulic cylinder (81) and second hydraulic cylinder (82) are oppositely arranged, and the first piston component (83) is slideably positioned in described
The first oil pocket (815) and the first fork shaft chamber are divided into first hydraulic cylinder (81) and by first hydraulic cylinder (81)
(816), the second piston component (84) is slideably positioned in second hydraulic cylinder (82) and by second hydraulic oil
Cylinder (82) is divided into the second oil pocket (825) and the second fork shaft chamber (826), and the both ends of fork shaft (85) are slideably positioned in described respectively
It lives in one fork shaft chamber (816) and the second fork shaft chamber (826) and respectively with the first piston component (83) and described second
Plug assembly (84) abuts, and first oil pocket (815) and second oil pocket (825) pass through pipeline and the hydraulic oil container respectively
Oil outlet connection, first valve is set on the pipeline between first oil pocket (815) and the hydraulic oil container, institute
It states on the pipeline that the second valve is set between second oil pocket (825) and the hydraulic oil container, the hydraulic oil container is to institute
State the first oil pocket (815) or second oil pocket (825) energy supply.
2. the control system of electrichydraulic control gearbox according to claim 1, it is characterised in that: further include hydraulic motor
(2) it is sequentially connected with third valve, the output end of the hydraulic motor (2) and the input terminal of gearbox, the hydraulic oil container
Oil outlet be connected to by pipeline with the oil inlet end of the hydraulic motor (2), the oil outlet of the hydraulic motor (2) pass through pipeline and
The hydraulic oil container connection, the third valve are set to the oil inlet end of the hydraulic motor (2) and going out for the hydraulic oil container
On pipeline between oily end, the hydraulic oil container is energized to the hydraulic motor (2), and the hydraulic motor (2) is used for described
Gearbox input power.
3. the control system of electrichydraulic control gearbox according to claim 2, it is characterised in that: first hydraulic cylinder
(81) it is provided with the first motor connector (812) in the middle part of, the connection of the second motor is provided in the middle part of second hydraulic cylinder (82)
Mouthful (822), the first motor connector (812) and the second motor connector (822) with the hydraulic motor (2)
Oil inlet end connection, the first piston component (83) have first piston oil duct, and the second piston component (84) has second
Piston oil duct；
When the first piston component (83) pushes the fork shaft (85) to the first drive range, first oil pocket (815) with
The first motor connector (812) is connected to by the first piston oil duct；
When the second piston component (84) pushes the fork shaft (85) to the second drive range, second oil pocket (825) with
The second motor connector (822) is connected to by the second piston oil duct；
Enter the hydraulic motor (2) by the first motor connector (812) and the second motor connector (822)
Hydraulic oil is for driving the hydraulic motor (2).
4. the control system of electrichydraulic control gearbox according to claim 3, it is characterised in that: the first piston component
It (83) include first piston (832) and the first spool (831), it is hydraulic that the first piston (832) is slideably positioned in described first
In oil cylinder (81), and the first hydraulic cylinder (81) inner cavity is divided into the first oil pocket (815) and the first fork shaft chamber (816),
The first piston (832) has the first spool mounting hole through its moving direction both ends, and first spool (831) wears
In the first spool mounting hole, the first piston (832) has first piston component holes, first spool (831)
With the first spool slot (8311), when the fork shaft (85) is located at the first drive range, the first piston component holes with it is described
First motor connector (812) is connected to and the first spool slot (8311) is connected to first oil pocket (815), and described first
Spool slot (8311) is connected to form the first piston oil duct with the first piston component holes；
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 hydraulic cylinder (82), and the second hydraulic cylinder (82) inner cavity is divided into the second oil pocket
(825) and there is the second spool through its moving direction both ends to install for the second fork shaft chamber (826), the second piston (842)
Hole, second spool (841) are threaded through in the second spool mounting hole, and the second piston (842) has second piston
Component holes, second spool (841) has the second spool slot (8411), when the fork shaft (85) is located at the second drive range,
The second piston component holes are connected to the second motor connector (822) and the second spool slot (8411) and described the
Two oil pockets (825) connection, the second spool slot (8411) are connected to form the second piston with the second piston component holes
Oil duct.
5. the control system of electrichydraulic control gearbox according to claim 4, it is characterised in that: further include that the first guiding is fixed
Position set (881) and the second guide-localization set (882), the first guide-localization set (881) are fixed on the first fork shaft chamber
(816) in, the second guide-localization set (882) is fixed in the second fork shaft chamber (826), and fork shaft (85) sliding is set
It is placed in the first guide-localization set (881) and the second guide-localization set (882), the first spool (831) sliding
It is set in the first spool mounting hole, second spool (841) is slideably positioned in the second spool mounting hole；
When the fork shaft (85) is located at the first drive range, the end of the first piston (832) and first guide-localization
It covers (881) to abut, first spool (831), which continues to press on the fork shaft (85) movement, completes the shift driving member (45)
Shift, and the first spool slot (8311) and first oil pocket (815) disconnect；
When the fork shaft (85) is located at the second drive range, the end of the second piston (842) and second guide-localization
It covers (882) to abut, second spool (841), which continues to press on the fork shaft (85) movement, completes the shift driving member (45)
Shift, and the second spool slot (8411) and second oil pocket (825) disconnect.
6. the control system of electrichydraulic control gearbox according to claim 5, it is characterised in that: the first fork shaft chamber
(816) and the second fork shaft chamber (826) has the first oil return hole (813) and the second oil return hole (823), and described first time
Oilhole (813) and second oil return hole (823) are connected to the hydraulic oil container, first spool (831) and described the
There is the first gap between one piston (832), have second between second spool (841) and the second piston (842)
Gap has respectively between the fork shaft (85) and the first guide-localization set (881) and the second guide-localization set (882)
There are third space and the 4th gap, the first guide-localization set (881) is provided be connected to first oil return hole (813)
One positioning is recovered oilhole (8811), and the second guide-localization set (882) is provided with the be connected to second oil return hole (823)
Two positioning sleeve oil return holes (8821), first gap and the first positioning sleeve oil return hole (8811) pass through the third space
Connection, second gap is connected to the second positioning sleeve oil return hole (8821) by the 4th gap.
7. the control system of electrichydraulic control gearbox according to claim 4, it is characterised in that: first spool
(831) it is socketed with elastic spring (89) with the both ends of second spool (841), the elastic spring (89) is for connecting it
First spool (831) connect or second spool (841) are limited.
8. the control system of electrichydraulic control gearbox according to claim 1-7, it is characterised in that: further include control
Device processed, first valve and second valve are solenoid valve, first valve and second valve with it is described
Controller is electrically connected and is controlled by the controller.
9. the control system of electrichydraulic control gearbox according to claim 8, it is characterised in that: further include gear sensing
Device, the gear position sensor and the controller carry out data communication, and the gear position sensor is for determining the fork shaft (85)
Complete position when different stalls shift.
10. a kind of control method of the control system of electrichydraulic control gearbox: it is characterized by: being appointed using such as claim 1-9
The control system of electrichydraulic control gearbox described in one,
When shifting gears to the second hydraulic cylinder (82) direction, first valve is opened, closes second valve, it is described
Hydraulic oil in hydraulic oil container enters first hydraulic cylinder (81), pushes the first piston component (83), and described first
Piston component (83) pushes the fork shaft (85) mobile towards the second hydraulic cylinder (82) direction, realizes towards described second
The shift of hydraulic cylinder (82) direction；
When shifting gears to the first hydraulic cylinder (81) direction, second valve is opened, closes first valve, it is described
Hydraulic oil in hydraulic oil container enters second hydraulic cylinder (82), pushes the second piston component (83), and described second
Piston component (83) pushes the fork shaft (85) mobile towards the first hydraulic cylinder (81) direction, realizes towards described first
The shift of hydraulic cylinder (81) direction.
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| CN201910832707.1A CN110425264B (en) | 2019-09-04 | 2019-09-04 | Control system and control method for electrohydraulic control gearbox |
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