CN106402375B - A kind of endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus and application method - Google Patents
A kind of endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus and application method Download PDFInfo
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- CN106402375B CN106402375B CN201610898710.XA CN201610898710A CN106402375B CN 106402375 B CN106402375 B CN 106402375B CN 201610898710 A CN201610898710 A CN 201610898710A CN 106402375 B CN106402375 B CN 106402375B
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- Prior art keywords
- bit selecting
- shift
- jackshaft
- cylinder
- grades
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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
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/044—Ratio selector apparatus consisting of electrical switches or sensors
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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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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- 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
- F16H2061/308—Modular hydraulic shift units, i.e. preassembled actuator units for select and shift movements adapted for being mounted on transmission casing
Abstract
The present invention provides a kind of endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus and application methods, using hydraulic driving mode, including gearbox, control system, integrated form bit selecting shift driving device, wherein integrated form bit selecting shift driving device is mounted on the gearbox；Control system includes electronic control unit ECU and solenoid valve, and solenoid valve is mounted in integrated form bit selecting shift driving device.The present invention proposes a kind of new connection type that selector fork is connected, and integrated form bit selecting shift driving device structure is compact to design, only need two cylinders, realize 6 or more control, and has the function of mechanical anti-folk art term, due to being directly mounted on gearbox, the installation space of occupancy is small, intermediate link is few, further improve the installability of self shifter steerable system, and integrated design is used with gearbox, the integral hoisting of gearbox auto-shifting device is facilitated, is easily installed, repairs.
Description
Technical field
The present invention relates to the speed change field of endless-track vehicle more particularly to a kind of selector forks to be connected, compact-sized automatic
Gearshift.
Background technique
Currently, conventional track vehicle stabilized shaft gearbox mostly uses greatly manually handle mode to carry out shift control, often occur
Phenomena such as shift is difficult, and shift quality is poor requires height to the technical level of driver, and maneuvering performance is bad.Therefore, for automatic
The demand of speed change is more more and more urgent.
Automatic shifting controller is mainly used to the requirement according to shift schedule, with the variation of control parameter, automatically
Best shifting points are selected, gear shifting signal is issued, gear shifting signal manipulates gear shifting actuating mechanism, completes the auto-changing of gear.Automatically
The function of shifting control system is by main elements such as block selecting valve (hand-operated valve), shift control valve, shift quality control valves Lai real
Existing.
Block selecting valve is also known as hand-operated valve, it is a kind of multiple directional control valve of hand-guided, positioned at the valve plate assembly of control system
In, it is connected through mechanical transmission mechanism with the control crank of automatic transmission, by driver's manual operations.
Shift gears control valve (abbreviation shift valve) be a kind of 2 position switching valves by hydraulic control, as a hydraulic selector, it
According to the variation of engine load (throttle opening) or car speed, the lifting of gear is automatically controlled, is made at automatic transmission
In on the gear for being most suitable for vehicle driving state.
The above gearshift general structure is complicated, and the space occupied is big, it has not been convenient to installation and maintenance.
Summary of the invention
Present invention aim to address gearshift, structure is complicated, and the space occupied is big, it has not been convenient to the problem of installation and maintenance.
Specifically, the present invention provides a kind of endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus, using hydraulic-driven side
Formula, including gearbox, control system, integrated form bit selecting shift driving device, the driving device wherein the integrated form bit selecting is shifted gears
It is mounted on the gearbox；The control system includes electronic control unit ECU and solenoid valve, and the solenoid valve is mounted on institute
It states in integrated form bit selecting shift driving device.
Further, the integrated form bit selecting shift driving device includes pedestal, shifting integrating device, 1 grade and R grades
On first jackshaft, the second jackshaft of 2 grades and 3 grades, the third jackshaft of 4 grades and 5 grades, the first jackshaft and the second jackshaft
The integrated fixed bracket at end, the fixation bracket of third jackshaft upper end, the first adjusting yoke of 1 grade and R grades, 2 grades and 3 grades the
Two adjusting yokes, the third adjusting yoke of 4 grades and 5 grades, the first selector fork axis actuating arm of 1 grade and R grades, 2 grades and 3 grades
The third selector fork axis actuating arm of two selector fork axis actuating arms, 4 grades and 5 grades；
The pedestal is fixed on gearbox top by fixing bolt；The shifting integrating device is solid by fixing bolt
Determine on the base, the integrated fixed bracket and the fixed bracket are fixed on the base by fixing bolt；
First jackshaft and second jackshaft are carried out by groove corresponding on the integrated fixed bracket and the pedestal
Positioning up and down, the third jackshaft carry out positioning up and down, institute by groove corresponding on the fixed bracket and the pedestal
Stating the first jackshaft, the second jackshaft and third jackshaft can rotate along own axes；First jackshaft, among second
The upper and lower end of axis and third jackshaft is respectively arranged with swing arm, on first jackshaft, the second jackshaft and third jackshaft
The swing arm at end pass through respectively the first adjusting yoke, the second adjusting yoke, third adjusting yoke and the first selector fork axis actuating arm,
Second selector fork axis actuating arm, third selector fork axis actuating arm are connected, and the swing arm of lower end is respectively connected to shifting collection
At device.
Further, the shifting integrating device includes: integrated form bit selecting shift cylinder, oil circuit pedestal, bit selecting displacement
Sensor, shift displacement sensor, range piston bar, bit selecting piston rod, shift wiper arm, shift frame, bit selecting frame, shift shifting block,
Pull rod, self-locking/mutual interlocking gear, gear shift sensing device shifting block, bit selecting sensor shifting block；
The integrated form bit selecting shift cylinder includes bit selecting oil cylinder and shift cylinder, is bolted and is fixedly mounted on institute
It states on oil circuit pedestal；The range piston bar and the bit selecting piston rod are separately mounted to the bit selecting of integrated form bit selecting shift cylinder
In oil cylinder and shift cylinder；The shift frame is mounted on the range piston bar, is lived by shift stem jam nut and shift
Stopper rod is fixedly connected, and can be for linear motion along the axis of range piston bar with range piston bar；The gear shift sensing device shifting block
One end, which is connected through a screw thread, to be fixed on the shift frame, and the other end is connected with the shift displacement sensor；The bit selecting
Frame is mounted on the bit selecting piston rod, is fixedly connected by bit selecting stem jam nut with bit selecting piston rod, and can be living with bit selecting
Stopper rod is for linear motion along the axis of bit selecting piston rod；Described bit selecting sensor shifting block one end be connected through a screw thread be fixed on it is described
On bit selecting frame, the other end is connected with bit selecting displacement sensor；The shift wiper arm passes through the shift frame and bit selecting frame, upper end
It is limited by the shift frame top cover, lower end is inserted into the groove of the shift shifting block；The shift shifting block passes through with the pull rod
Clamping screw connection；The pull rod is mounted on the oil circuit pedestal, and can be for linear motion along its axis direction；It is described from
Lock/mutual interlocking gear is mounted on the oil circuit pedestal.
Further, the pull rod quantity be 3, respectively with the first jackshaft, the second jackshaft and third jackshaft lower end
Swing arm be connected, have self-locking/interlock recess on the pull rod, self-locking/mutual lock machine for being used for and being mounted on the oil circuit pedestal
Structure cooperating.
Further, the shifting integrating device further include: shift cylinder end cap, bit selecting cylinder end cap, range piston post gasket
Set, bit selecting piston bushing, bit selecting frame support and cover board；The bit selecting cylinder end cap and shift cylinder end cap respectively with O-ring cooperation pair
The cylinder barrel of bit selecting oil cylinder and shift cylinder is sealed, while playing limit to the movement of the bit selecting piston rod and range piston bar
Effect；The bit selecting piston bushing and range piston bushing lean on proximal end with the bit selecting piston rod and range piston bar respectively
One end of lid matches, and plays position in determining；The bit selecting frame support provides guiding for the movement of bit selecting frame；The cover board position
It at the top of integrated form bit selecting shift cylinder, seals, while being also the window of maintenance conditions.
Further, the bit selecting oil cylinder, shift cylinder are single rod type double-acting hydraulic cylinder.
Further, the solenoid valve is the two-bit triplet solenoid valve of high-speed response, quantity 4.
The present invention proposes a kind of new connection type that selector fork is connected, and integrated form bit selecting shift driving device knot
Structure is compact to design, it is only necessary to which two cylinders realize 6 or more control, and have the function of mechanical anti-folk art term, due to straight
It connects and is installed on gearbox, the installation space of occupancy is small, and intermediate link is few, and further improve self shifter steerable system can
Installation, and integrated design is used with gearbox, the integral hoisting of gearbox auto-shifting device is facilitated, convenient for peace
Dress, maintenance.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the hydraulic-driven schematic diagram of self shifter manipulation device；
Fig. 2 is integrated form bit selecting shift driving unit assembly installation diagram；
Fig. 3 is shifting integrating device main view；
Fig. 4 is shifting integrating device top view；
Fig. 5 is the cross-sectional view of gearshift；
Fig. 6 is the cross-sectional view of bit selecting mechanism.
Wherein: 1- gearbox；2- pedestal；3- shifting integrating device；The first jackshaft of 4-；The second jackshaft of 5-；6-
Three jackshafts；The integrated fixed bracket of 7-；8- fixes bracket；The first adjusting yoke of 9-；The second adjusting yoke of 10-；11- third is adjusted
Pull rod；12- the first selector fork axis actuating arm；13- the second selector fork axis actuating arm；14- third selector fork axis actuating arm；
15- integrated form bit selecting shift cylinder；16- oil circuit pedestal；17- bit selecting displacement sensor；18- shift displacement sensor；19- shift
Piston rod；20- shift stem jam nut；21- bit selecting piston rod；22- bit selecting stem jam nut；23- shift wiper arm；24- shift
Frame；25- bit selecting frame；26- shift shifting block；27- clamping screw；28- pull rod；28 '-self-locking/interlock recess；Self-locking/mutual lock machine of 29-
Structure；30- gear shift sensing device shifting block；31- bit selecting sensor shifting block；32- shift cylinder end cap；33- bit selecting cylinder end cap；34- shift is lived
Stopper rod bushing；35- bit selecting piston bushing；36- bit selecting frame support；37- cover board；A- bit selecting oil cylinder；B- shift cylinder；S1,S2,
S3, S4- two-bit triplet solenoid valve；P- pressure oil.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
A kind of endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus of the invention, using hydraulic driving mode, including speed change
Case 1, control system, integrated form bit selecting shift driving device, wherein integrated form bit selecting shift driving device is mounted on gearbox,
Realize integrated design.
Control system includes electronic control unit ECU and solenoid valve.As shown in Figure 1, solenoid valve is two of high-speed response
Three-way magnetic valve, quantity 4 are S1, S2, S3 and S4 in figure, are mounted in integrated form bit selecting shift driving device.Wherein,
S1, S2 are for controlling bit selecting operation, and for controlling gear shift operation, pressure oil P enters shifting by solenoid valve S1-S4 by S3, S4
Integrating device.
As shown in Fig. 2, integrated form bit selecting shift driving device includes 3,1 grades and R grades of pedestal 2, shifting integrating device
Among first 4,2 grades of jackshaft and 3 grades of 5,4 grades and 5 grades of the second jackshaft of third jackshaft 6, the first jackshaft and second
9,2 and 3 grades of the first adjusting yoke of the integrated fixed bracket 7 of axis upper end, fixed 8,1 grades and R grades of the bracket in third jackshaft upper end
10,4 grades and 5 grades of the second adjusting yoke of 11,1 grades and R grades of third adjusting yoke of the first selector fork axis actuating arm 12,2
Shelves and 3 grades of 13,4 grades and 5 grades of the second selector fork axis actuating arm of third selector fork axis actuating arm 14；
Pedestal 2 is fixed on 1 top of gearbox by fixing bolt；Shifting integrating device 3 is fixed on by fixing bolt
On pedestal 2, integrated fixed bracket 7 and fixed bracket 8 are fixed on pedestal 2 by fixing bolt.First jackshaft 4 and second
Jackshaft 5 carries out positioning up and down by corresponding groove on integrated fixed bracket 7 and pedestal 2, and third jackshaft 6 passes through integrated solid
Corresponding groove carries out positioning up and down on fixed rack 8 and pedestal 2, and the first jackshaft 4, the second jackshaft 5 and third jackshaft 6 are equal
It can be rotated along own axes；The upper and lower end of first jackshaft 4, the second jackshaft 5 and third jackshaft 6 is respectively arranged with swing arm,
The swing arm of upper end passes through the first adjusting yoke 9, the second adjusting yoke 10, third adjusting yoke 11 and the first selector fork axis respectively
Actuating arm 12, the second selector fork axis actuating arm 13, third selector fork axis actuating arm 14 are connected, and the swing arm of lower end connects respectively
It is connected to shifting integrating device 3.
As illustrated in figures 3-6, shifting integrating device 3 specifically include that integrated form bit selecting shift cylinder 15, oil circuit pedestal 16,
Bit selecting displacement sensor 17, shift displacement sensor 18, range piston bar 19, shift stem jam nut 20, bit selecting piston rod 21,
Bit selecting stem jam nut 22, shift wiper arm 23, shift frame 24, bit selecting frame 25, shift shifting block 26, clamping screw 27, pull rod 28, from
Lock/interlock recess 28 ', self-locking/mutual interlocking gear 29, gear shift sensing device shifting block 30, bit selecting sensor shifting block 31.Wherein, integrated form
Bit selecting shift cylinder 15 includes bit selecting oil cylinder a and shift cylinder b, is bolted and is fixedly mounted on oil circuit pedestal 16；It changes
Gear piston rod 19 and bit selecting piston rod 21 are separately mounted in the bit selecting oil cylinder and shift cylinder of integrated form bit selecting shift cylinder 15；
Shift frame 24 is mounted on range piston bar 19, is fixedly connected by shift stem jam nut 20 with range piston bar 19, and can
It is for linear motion along the axis of range piston bar 19 with range piston bar 19；30 one end of gear shift sensing device shifting block is connected through a screw thread
It is fixed on shift frame 24, the other end is connected with shift displacement sensor 18, when range piston bar 19 is for linear motion, changes
Gear displacement sensor 18 can measure the current position of range piston bar 19 by the movement of measurement gear shift sensing device shifting block 30；Choosing
Position frame 25 is mounted on bit selecting piston rod 21, is fixedly connected by bit selecting stem jam nut 22 with bit selecting piston rod 21, and can be with
Bit selecting piston rod 21 is for linear motion along the axis of bit selecting piston rod 21；31 one end of bit selecting sensor shifting block is connected through a screw thread solid
It is scheduled on bit selecting frame 25, the other end is connected with bit selecting displacement sensor 17, and when bit selecting piston rod 21 moves, bit selecting displacement is passed
Sensor 17 can measure the current position of bit selecting piston rod 21 by the movement of measurement bit selecting sensor shifting block 31；Shift wiper arm 23
Across shift frame 24 and bit selecting frame 25, upper end is limited by 24 top cover of shift frame, in the groove of lower end insertion shift shifting block 26；Shift
Shifting block 26 is connect with pull rod 28 by clamping screw 27, and pull rod 28 is mounted on oil circuit pedestal 16, and can be made along its axis direction
Linear motion, quantity 3 are connected with the swing arm of 6 lower end of the first jackshaft 4, the second jackshaft 5 and third jackshaft respectively, draw
There is self-locking/interlock recess 28 ' on bar 28, is used for and is mounted on self-locking/mutual interlocking gear 29 on oil circuit pedestal 16 and match, thus
Realize the anti-function of hanging folk art term.
Shifting integrating device 3 further include: shift cylinder end cap 32, bit selecting cylinder end cap 33, range piston bushing 34, bit selecting
Piston bushing 35, bit selecting frame support 36, cover board 37.Bit selecting cylinder end cap 33 and shift cylinder end cap 32 cooperate with O-ring to choosing respectively
The cylinder barrel of position oil cylinder a and shift cylinder b is sealed, while being risen to the movement of the bit selecting piston rod 21 and range piston bar 19
Position-limiting action；The bit selecting piston bushing 35 and range piston bushing 34 are lived with the bit selecting piston rod 21 and shift respectively
Stopper rod 19 is matched by one end of proximal cover, plays position in determining；The bit selecting frame support 36 is that the movement of bit selecting frame 25 mentions
For guiding；The cover board 37 is located at 15 top of integrated form bit selecting shift cylinder, seals, while being also the window of maintenance conditions
Mouthful.
The overall structure composition and its installation connection type of self shifter steerable system is described above, this, which is described below, is
The working principle and concrete operation step of system.
Self shifter steerable system of the invention is controlled by electronic control unit ECU, can using hydraulic driving mode
Realize automatic carry, the gear shift operation of gearbox 1.Integrated form bit selecting shift driving device is driven by two bit selecting, shift oil cylinders,
Bit selecting oil cylinder a, shift cylinder b are all made of single rod type double-acting hydraulic cylinder, by the two-bit triplet solenoid valve of normally closed type high-speed response
Control.S1, S2 solenoid valve are used to drive the bit selecting piston rod 21 in bit selecting oil cylinder a, and S3, S4 solenoid valve are for driving shift cylinder
Range piston bar 19 in b.Two oil cylinders pass through the bit selecting frame 25 being connected on its piston rod respectively and shift frame 24 pushes shift
Wiper arm 23 moves to complete corresponding bit selecting, gear shift operation.When electronic control unit ECU issues shifting commands, corresponding electromagnetism
Valve is powered in due course can be completed bit selecting, gear shift operation.And in bit selecting shift process, it is mounted on bit selecting frame 25 and shift frame 24
On the movement of sensor shifting block sensor is generated displacement signal and be transmitted back to electronic control unit, make electronic control unit just
The really gearshift condition of judgement at this time is controlled accordingly with will pass through real-time monitoring and control the operation of executing agency.This
Sample electronic control unit-integrated form bit selecting shift driving device-sensor-electronic control unit just constitutes automatic control system
Closed loop.Specific steps are as follows:
(1) bit selecting operates: controlling solenoid valve S1, S2 of bit selecting under the driving of electronic control unit ECU, control bit selecting is living
Power is transmitted to shift wiper arm 23 along its axial-movement, by bit selecting frame 25 by stopper rod 21, so that shift wiper arm 23 be driven to change at three
It keeps off in the groove of shifting block 26 and carries out bit selecting；Bit selecting oil cylinder a, bit selecting piston bushing 35 and 33 three of bit selecting cylinder end cap ensure that
The accuracy of 21 shift position of bit selecting piston rod.The movement of bit selecting piston rod 21 is transmitted to bit selecting by bit selecting sensor shifting block 31 simultaneously
Displacement sensor 17, so that the moving situation of bit selecting piston rod 21 is fed back to electronic control unit ECU.
(2) gear shift operation: electronic control unit ECU drive magnetic valve S3, S4 controls range piston bar 19 and transports along its axis
Dynamic, range piston bar 19 pushes shift wiper arm 23 to move along equidirectional by shift frame 24, and drives corresponding pull rod 28 along it
Axis is mobile, and jackshaft, adjusting yoke, selector fork axis actuating arm of the berth-changing strength Jing Guo respective notch push selector fork to complete
It puts into gear accordingly, pluck gear manipulation；Shift cylinder b, range piston bushing 34 and shift 32 three of cylinder end cap ensure that shift
The accuracy of 19 shift position of piston rod, while self-locking/interlock recess 28 ' on pull rod 28 and self-locking/mutual interlocking gear 29 match
Conjunction ensure that folk art term is not hung by mechanism.The movement of range piston bar 19 is passed to shift displacement sensor by gear shift sensing device shifting block 30
18, so that gear signal is fed back to electronic control unit ECU.
Automatic gear shift apparatus and gearbox of the invention uses integrated design, with previous self shifter steerable system phase
Than the present invention proposes a kind of new connection type that selector fork is connected, and integrated form bit selecting shift driving device structure is set
It counts compact, it is only necessary to which two cylinders realize 6 or more control, and have the function of mechanical anti-folk art term, due to directly pacifying
Loaded on gearbox, the installation space of occupancy is small, and intermediate link is few, further improves the mountable of self shifter steerable system
Property, and integrated design is used with gearbox, the integral hoisting of gearbox auto-shifting device is facilitated, is easily installed, ties up
It repairs.
In conclusion having the characteristics that gear shift operation simplicity, accurate, energy the present invention provides a kind of auto-shifting device
Enough improve the maneuvering performance of vehicle.The new connection type being connected simultaneously using selector fork, and the shift of integrated form bit selecting is driven
Dynamic apparatus structure is compact to design, and the installation space of occupancy is small, further improves the installability of self shifter steerable system.
Although having been combined preferred embodiment to be described in detail the present invention, those skilled in the art are answered
What it is when understanding is without prejudice to spirit of that invention and essence, and various amendments are all allowed, they both fall within this hair
Among bright scope of protection of the claims.
Claims (6)
1. a kind of endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus, using hydraulic driving mode, which is characterized in that including speed change
Case, control system, integrated form bit selecting shift driving device, wherein integrated form bit selecting shift driving device is mounted on the change
On fast case；The control system includes electronic control unit ECU and solenoid valve, and the solenoid valve is mounted on the integrated form bit selecting
In driving device of shifting gears；
Integrated form bit selecting shift driving device includes pedestal, shifting integrating device, the first jackshaft of 1 grade and R grades, 2
Shelves and 3 grades of the second jackshaft, 4 grades and 5 grades third jackshaft, the first jackshaft and the second jackshaft upper end integrated fixation
Bracket, the fixation bracket of third jackshaft upper end, the first adjusting yoke of 1 grade and R grades, the second adjusting yoke of 2 grades and 3 grades, 4
Shelves and 5 grades of third adjusting yoke, the first selector fork axis actuating arm of 1 grade and R grades, 2 grades and 3 grades the second selector fork axis
The third selector fork axis actuating arm of actuating arm, 4 grades and 5 grades；
The pedestal is fixed on gearbox top by fixing bolt；The shifting integrating device is fixed on by fixing bolt
On the pedestal, the integrated fixed bracket and the fixed bracket are fixed on the base by fixing bolt；It is described
First jackshaft and second jackshaft are carried out up and down by groove corresponding on the integrated fixed bracket and the pedestal
Positioning, the third jackshaft carry out positioning up and down by groove corresponding on the fixed bracket and the pedestal, and described the
One jackshaft, the second jackshaft and third jackshaft can be rotated along own axes；First jackshaft, the second jackshaft and
The upper and lower end of third jackshaft is respectively arranged with swing arm, first jackshaft, the second jackshaft and third jackshaft upper end
Swing arm passes through the first adjusting yoke, the second adjusting yoke, third adjusting yoke and the first selector fork axis actuating arm, second respectively
Selector fork axis actuating arm, third selector fork axis actuating arm are connected, and the swing arm of lower end is respectively connected to the integrated dress of shifting
It sets；
The solenoid valve is the two-bit triplet solenoid valve of high-speed response, quantity 4；
Wherein, described solenoid valve S1, S2 are for controlling bit selecting operation, and for controlling gear shift operation, pressure oil passes through electromagnetism by S3, S4
Valve S1-S4 enters shifting integrating device.
2. endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus according to claim 1, which is characterized in that the shifting
Integrating device includes: integrated form bit selecting shift cylinder, oil circuit pedestal, bit selecting displacement sensor, shift displacement sensor, shift work
Stopper rod, bit selecting piston rod, shift wiper arm, shift frame, bit selecting frame, shift shifting block, pull rod, self-locking/mutual interlocking gear, gear shift sensing device
Shifting block, bit selecting sensor shifting block；
The integrated form bit selecting shift cylinder includes bit selecting oil cylinder and shift cylinder, is bolted and is fixedly mounted on the oil
On roadbed seat；The range piston bar and the bit selecting piston rod are separately mounted to the bit selecting oil cylinder of integrated form bit selecting shift cylinder
In shift cylinder；The shift frame is mounted on the range piston bar, passes through shift stem jam nut and range piston bar
It is fixedly connected, and can be for linear motion along the axis of range piston bar with range piston bar；Described gear shift sensing device shifting block one end
It is connected through a screw thread and is fixed on the shift frame, the other end is connected with the shift displacement sensor；The bit selecting frame peace
On the bit selecting piston rod, it is fixedly connected by bit selecting stem jam nut with bit selecting piston rod, and can be with bit selecting piston rod
Axis along bit selecting piston rod is for linear motion；Described bit selecting sensor shifting block one end, which is connected through a screw thread, is fixed on the bit selecting
On frame, the other end is connected with bit selecting displacement sensor；The shift wiper arm passes through the shift frame and bit selecting frame, and upper end is by institute
Shift frame top cover limit is stated, lower end is inserted into the groove of the shift shifting block；The shift shifting block and the pull rod pass through locking
It is bolted；The pull rod is mounted on the oil circuit pedestal, and can be for linear motion along its axis direction；It is described self-locking/mutual
Latch mechanism is mounted on the oil circuit pedestal.
3. endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus according to claim 2, which is characterized in that the pull rod number
Amount be 3, be connected respectively with the swing arm of the first jackshaft, the second jackshaft and third jackshaft lower end, have on the pull rod it is self-locking/
Interlock recess, the self-locking/mutual interlocking gear cooperating for being used for and being mounted on the oil circuit pedestal.
4. automatic gear shift apparatus according to claim 3, which is characterized in that the shifting integrating device further include: change
Keep off cylinder end cap, bit selecting cylinder end cap, range piston bushing, bit selecting piston bushing, bit selecting frame support and cover board；The bit selecting cylinder end
Lid and shift cylinder end cap are respectively sealed the cylinder barrel of bit selecting oil cylinder and shift cylinder with O-ring cooperation, while to the choosing
The movement of position piston rod and range piston bar plays position-limiting action；The bit selecting piston bushing and range piston bushing respectively with
The bit selecting piston rod and range piston bar are matched by one end of proximal cover, play position in determining；The bit selecting frame support
Movement for bit selecting frame provides guiding；The cover board is located at the top of integrated form bit selecting shift cylinder, seals, and is also simultaneously
The window of maintenance conditions.
5. endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus according to claim 4, which is characterized in that the bit selecting oil
Cylinder, shift cylinder are single rod type double-acting hydraulic cylinder.
6. a kind of process for gear using any endless-track vehicle stabilized shaft gearbox automatic gear shift apparatus of claim 1-5,
It is characterised in that it includes bit selecting operation and gear shift operation；
Bit selecting operation: controlling solenoid valve S1, S2 of bit selecting under the driving of electronic control unit ECU, controls bit selecting piston rod edge
Own axes movement, power is transmitted to by shift wiper arm by bit selecting frame, thus drive shift wiper arm shift shifting block groove in into
Row bit selecting；The movement of bit selecting piston rod is transmitted to bit selecting displacement sensor by bit selecting sensor shifting block simultaneously, thus by bit selecting piston
The moving situation of bar feeds back to electronic control unit ECU；
Gear shift operation: electronic control unit ECU drive magnetic valve S3, S4 control range piston bar is moved along own axes, is shifted gears
Piston rod pushes shift wiper arm to move along equidirectional by shift frame, and corresponding pull rod is driven to move along its axis, berth-changing strength
It pushes selector fork completion to put into gear accordingly by the jackshaft of respective notch, adjusting yoke, selector fork axis actuating arm, pluck gear
Manipulation；The movement of range piston bar is passed to shift displacement sensor by gear shift sensing device shifting block simultaneously, thus by gear signal
Feed back to electronic control unit ECU.
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| CN107314106A (en) * | 2017-06-12 | 2017-11-03 | 南通国盛智能科技集团股份有限公司 | A kind of gearshift mechanism of gear box |
| CN114233845B (en) * | 2021-11-12 | 2023-07-25 | 中国北方车辆研究所 | AT transmission control system for preventing wheel type war chariot from being hung in double gears |
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