CN206142747U - A quadriversal antedisplacement fork truck key switches electro -mechanical -hydraulic integral system of walking mode - Google Patents

Abstract

The utility model discloses a quadriversal antedisplacement fork truck key switches electro -mechanical -hydraulic integral system of walking mode, mechanical part includes fork truck's back driving gear box, the rear -guard operation is to taking place the mechanism, and fork truck's fore carriage, the controller of button is switched to electric part including the area, the rear -guard dynamic sensor, the piece is answered to the rear -guard sensation of movement, AC drive motor module, the craspedodrome sensor, the skidding sensor, mode switch responds to the piece, liquid way part is including magenetic exchange valve group, double - direction hydraulic - clock, and articulate the hydraulic cylinder on the fork truck car connection seat. The utility model discloses the driver only need press switches the button, and after 10 seconds, the front -and rear -wheel steer targets in place, and the stack operation was carried out to vehicle alright the required mode of entering this moment, and whole process is quick simple, and is safe high -efficient.

Description

The mechanical-electrical-hydraulic integration system of four-way reach fork truck one key switching walking mode

Technical field

This utility model is related to fork truck system regions, specifically a kind of machine of four-way reach fork truck one key switching walking mode Electrohydraulic integration system.

Background technology

Due to special driving mode, its prospect is subject to unanimously to be had an optimistic view of in industry four-way reach truck, market share Also improve year by year.The remarkable mode switching system of a set of perfect in shape and function, performance, can make the vehicle skidding Function go out it is bigger Advantage, win the favor of more clients.

In the occasion for carrying long material（To save place, increase warehouse capacity, most of enterprise all can be shelf and shelf The distance between accomplish that the limit is little, so the carrying of long material needs a fork truck that can laterally travel to enter this narrow opening Interior operation）, four-way reach fork truck frequently come in and go out narrow opening stacking, straight-line travelling and cross running frequent switching when, need simple Intelligence, the travel direction for fast and safely switching vehicle, because the steering of common four-way reach truck front-wheel is by hydraulic pressure Valve rod is individually controlled, and the steering of rear drive sprocket is individually controlled by steering wheel by Hydraulic Elements, when realizing that switching is turned to, it is necessary to There is sequencing to operate, now in frequent operation, operator intensity is big, the risk that maloperation occurs is high, working performance Lowly, and after Dietary behavior state, vehicle is walked not directly, easily walks the shelf or passage that both sides are tiltedly easily bumped against in narrow passage.

Utility model content the purpose of this utility model is to provide a kind of four-way reach fork truck one key switching walking mode Mechanical-electrical-hydraulic integration system, to solve the problems, such as the reach forklift-walking pattern switching inconvenience of prior art four-way.

In order to achieve the above object, the technical scheme that this utility model is adopted for：

The mechanical-electrical-hydraulic integration system of four-way reach fork truck one key switching walking mode, it is characterised in that：Machinery Ministry subpackage Include the rear drive gear case of fork truck, rear driving and turn to generating mechanism, and the front wheel carrier of fork truck, wherein drive turning to generation machine afterwards Structure is connected with rear drive gear case, drives turn to generating mechanism action under the drive of rear drive gear case afterwards；

Electric part includes the controller with switching push button, drives sensor, rear-guard dynamic sensing chip, AC driven motor afterwards Module, straight trip sensor, skidding sensor, pattern switching sensing chip, wherein driving sensor to be fixed on car body afterwards, are arranged on Directly over the motion path of the dynamic sensing chip of rear-guard at 3-5mm, position immobilizes；The dynamic sensing chip of rear-guard is one section of circular arc-shaped metal Thin slice is arranged on rear drive gear case, and the corresponding central angle of circular arc drives the sphere of action of sensor, circular arc gold after being The center of circle of category thin slice is concentric with motor input shaft, it is ensured that the angular velocity of rotation is identical, when gear-box rotates, drives after drive Sensing chip rotates with rear drive sprocket, into the sensing angular range of rear driving sensor, both mutual induction output angles High low signal is to controller；AC driven motor module is connected with rear drive gear case, is driven by AC driven motor module Dynamic rear drive gear case action；Straight trip sensor and skidding sensor are fixed on car body, and position is constant, with the rotation of front wheel carrier Centered on point, both are arranged on directly over the rotating path of pattern switching sensing chip at 3-5mm in 90 degree of angles；Pattern switching sense Answer piece to be arranged on front wheel carrier, can rotate with front wheel carrier, slewing area is 0-90 °, only in 0 degree of position and straight trip sensing during rotation Device, 90 degree of positions and skidding sensor sense and output signals to controller；Sensor is driven after described, rear-guard innervation should Piece, straight trip sensor, skidding sensor, pattern switching sensing chip are electrically accessed respectively controller, the controller with exchange driving Motor module control connection；

Fluid path part includes electromagnetic switch valve group, bidirectional hydraulic lock, and the hydraulic pressure being hinged on fork truck body connecting seat Oil cylinder, the piston rod of the hydraulic jack is hinged on front wheel carrier, and external hydraulic source is supplied through electromagnetic switch valve group, bidirectional hydraulic lock To hydraulic jack, controller is connected oil with the control of electromagnetic switch valve group in electric part.

The mechanical-electrical-hydraulic integration system of described four-way reach fork truck one key switching walking mode, it is characterised in that：Front-wheel Auxiliary stopper device is also equipped with frame.

This utility model arrangement is simple, and small volume does not take up space, meet fork lift truck structure it is compact the characteristics of.Control system is The steering of stand-alone development, the master controller for coordinating fork truck is used, and each sensor is separately mounted to the specific position of front and back wheel, Detection front and back wheel is presently in position, and Real-time Feedback signal is to controller；The solenoid valve block of hydraulic system, hydraulic cylinder, it is fixed on On car body, solenoid valve block receives the signal of control system so as to realize the break-make of oil circuit, and hydraulic jack is double acting cylinder, one end hinge It is connected on car body, other end is hinged on front-wheel wheel carrier, promotes front-wheel steer, rear drive sprocket that electronics is controlled and be equipped with for exchange Generating mechanism is turned to, according to controller parameter auto-steering set in advance to special angle, bidirectional hydraulic lock during pattern switching It is connected on hydraulic jack, plays position holding effect, it is ensured that vehicle is along straight-line travelling；Mechanical assist mechanism plays spacing, connection, consolidates It is fixed to wait effect.

When vehicle needs to enter into another pattern from a kind of pattern, driver need to only press switching push button, 10 seconds Zhong Hou, in place, now vehicle just can carry out stacking operation into required mode for front-and rear-wheel steer.Whole process is quick and easy, peace Overall height is imitated；Into after straight trip or sideways mode, vehicle will not walk in the process of moving the situation of not straight or diagonal.

Description of the drawings

Fig. 1 is this utility model systematic schematic diagram.

Specific embodiment

The mechanical-electrical-hydraulic integration system of fork truck one key switching walking mode as shown in figure 1, four-way moves forward, mechanical part includes The rear drive gear case 3 of fork truck, rear driving turn to generating mechanism 14, and the front wheel carrier 6 of fork truck, wherein drive to turn to afterwards occurring Mechanism 14 is connected with rear drive gear case 3, drives turn to the action under the drive of rear drive gear case 3 of generating mechanism 14 afterwards；

Electric part includes that the controller 16 with switching push button 9, rear driving sensor 1, rear-guard innervation answer 2, exchange drive Dynamic motor module 13, straight trip sensor 4, skidding sensor 5, pattern switching sensing chip 7, wherein driving sensor 1 to be fixed on afterwards On car body 15, at 3-5mm directly over the motion path of the dynamic sensing chip 2 of rear-guard, position immobilizes；Rear-guard moves sensing chip 2 is that one section of circular arc-shaped metal thin slice is arranged on rear drive gear case 3, and the corresponding central angle of circular arc drives sensor 1 after being Sphere of action, the center of circle of circular arc-shaped metal thin slice is concentric with motor input shaft, it is ensured that the angular velocity of rotation is identical, gear When case rotates, the dynamic sensing chip 2 of rear-guard is driven to rotate with rear drive sprocket, into the sensing angular range of rear driving sensor 1, Both mutual induction output angle high low signals are to controller 16；AC driven motor module 13 is driven with rear drive gear case 3 Connection, drives the action of rear drive gear case 3, straight trip sensor 4 and skidding sensor 5 to be fixed on by AC driven motor module 13 On car body, position is constant, and centered on the point of rotation of front wheel carrier 6, both are arranged on pattern switching sensing chip 7 in 90 degree of angles Directly over rotating path at 3-5mm；Pattern switching sensing chip 7 is arranged on front wheel carrier 6, can be rotated with front wheel carrier 6, rotates model Enclose for 0-90 °, only sensing and output signal occur with straight trip 4,90 degree of positions of sensor and skidding sensor 50 degree of position during rotation To controller 16；The dynamic sensing chip 2 of sensor 1, rear-guard, straight trip sensor 4, skidding sensor 5, pattern switching sensing chip are driven afterwards 7 are electrically accessed respectively controller 16, and controller 16 is connected with the control of AC driven motor module 13；

Fluid path part includes electromagnetic switch valve group 10, bidirectional hydraulic lock 11, and is hinged on fork truck body connecting seat 15 Hydraulic jack 12, the piston rod of the hydraulic jack 12 is hinged on front wheel carrier 6, and external hydraulic source is through electromagnetic switch valve group 10th, to hydraulic jack 12, controller 16 is connected the fuel feeding of bidirectional hydraulic lock 11 with the control of electromagnetic switch valve group 10 in electric part.

Auxiliary stopper device 8 is also equipped with front wheel carrier 6.

Utility model works process is as follows：

The first step：Controller judges vehicle's current condition.By the rear driving sensor 1 on rear drive gear case 3 The mutual induction and the dynamic sensing chip 2 of rear-guard between, it is determined that relative position relation therebetween, and feed back signal to controller 16； The straight trip sensor 4 being arranged on simultaneously on front wheel carrier 6（Judge straight-going mode）Or skidding sensor 5（Judge sideways mode）With Mutual induction between pattern switching sensing chip 7 (can rotate with wheel carrier), it is determined that relative position relation therebetween, and feedback letter Number give controller 16；Controller 16 is received after signal, judges that Current vehicle is located according to the program and signal contrast of pre-edit Pattern is straight-going mode or sideways mode；

Second step：Controller control electricity, liquid components and parts action.If controller judges that Current vehicle is straight-going mode, need When being switched to sideways mode, the switching push button 9 on push panel is only needed to as driver, now switching push button 9 circuits are connected and send two paths of signals by controller 16, wherein all the way signal sends instructions to electromagnetic switch valve group 10, electromagnetic valve The SA1 valve element actions of group 10, oil circuit is commutated to pattern oil circuit, while the SA2 valve elements of pattern oil circuit are opened（When skidding turns straight trip SA3 valve elements are opened）, pressure oil by after bidirectional hydraulic lock 11, entering the hydraulic jack 12 being hinged on car body connecting seat 15, by Hydraulic jack 12 promotes front wheel carrier 6 to be rotated by 90 °, and the pattern switching sensing chip 7 on front wheel carrier 6 is rotated by 90 ° with wheel carrier Afterwards, the induction range of approaching side line sensor 5, both are after the Comparison calibration of position by sensor feedback information to controller 16, now front-wheel enter skidding attitude, to prevent the anglec of rotation excessive, auxiliary stopper device 8 is installed on wheel carrier, it is ensured that turn It is accurate to angle；In addition all the way signal sends instructions to AC driven motor module 13, and control motor drives gear-box 3 real Existing rear-axle steering, the sensing chip 2 on sliding tooth roller box 3 is redirected into the induction range of sensor 1 with driving wheel, and two Person mutually to compare and lock drive wheel position after determination relative positional accuracy, and now rear drive sprocket is also into skidding attitude；

3rd step：Controller judges again vehicle mode.After front-wheel approaching side row attitude, sensor 5 feeds back signal to Controller；Driving wheel is entered after skidding attitude, and sensor 1 feeds back signal to controller；Only controller receive simultaneously this two Individual signal and after comparing with program set-point, can just judge vehicle currently for sideways mode and interlocking signal（Anti- stop signal is done Disturb）, now just can function of the unlocking vehicle under sideways mode, such as skidding deceleration, position holding, driving self-locking, low energy consumption Function, whole handoff procedure only needs 10 seconds or so.

4th step：Driving posture keeps and correction for direction.Vehicle is entered after skidding or straight-going mode, and bidirectional hydraulic lock 11 will Fluid is enclosed in oil cylinder, makes oil cylinder be constantly in rigid state（Piston rod will not stretch）, dieback front wheel carrier 6 prevents Front-wheel circles round, it is ensured that nose wheel angle will not deflect so as to affect travel direction, while controller sends instructions to again SA1, pattern oil circuit is disconnected, and switches to other oil circuits；After the locked nose wheel angle of bidirectional hydraulic lock, driver passes through steering wheel control Rear drive sprocket processed, now the induction range of sensing chip 2 and sensor 1 is certain angle, and angular dimension is adjustable, facilitates driver couple Driving wheel direction is finely tuned, and preventing vehicle from not straight or driving experience deficiency is walked because Uneven road jolts causes vehicle to walk Serpentiss Shape；On bridge operation panel, position display screen is equipped with, vehicle's current condition and the relative position of each tire are shown in real time Put, and be furnished with intelligent sound prompting, switch mode state flashing lamp etc., it is intelligentized while also more hommization.

Claims (2)

1. four-way move forward fork truck one key switching walking mode mechanical-electrical-hydraulic integration system, it is characterised in that：Mechanical part includes The rear drive gear case of fork truck, rear driving turn to generating mechanism, and the front wheel carrier of fork truck, wherein drive turning to generating mechanism afterwards It is connected with rear drive gear case, drives turn to generating mechanism action under the drive of rear drive gear case afterwards；

Electric part includes the controller with switching push button, drives sensor, rear-guard dynamic sensing chip, AC driven motor mould afterwards Block, straight trip sensor, skidding sensor, pattern switching sensing chip, wherein drive sensor to be fixed on car body afterwards, after being arranged on Drive directly over the motion path of sensing chip at 3-5mm, position immobilizes；The dynamic sensing chip of rear-guard is that one section of circular arc-shaped metal is thin Piece is simultaneously arranged on rear drive gear case, and the corresponding central angle of circular arc drives the sphere of action of sensor, circular arc gold after being The center of circle of category thin slice is concentric with motor input shaft, it is ensured that the angular velocity of rotation is identical, when gear-box rotates, drives after drive Sensing chip rotates with rear drive sprocket, into the sensing angular range of rear driving sensor, both mutual induction output angles High low signal is to controller；AC driven motor module is connected with rear drive gear case, is driven by AC driven motor module Dynamic rear drive gear case action；Straight trip sensor and skidding sensor are fixed on car body, and position is constant, with the rotation of front wheel carrier Centered on point, both are arranged on directly over the rotating path of pattern switching sensing chip at 3-5mm in 90 degree of angles；Pattern switching sense Answer piece to be arranged on front wheel carrier, can rotate with front wheel carrier, slewing area is 0-90 °, only in 0 degree of position and straight trip sensing during rotation Device, 90 degree of positions and skidding sensor sense and output signals to controller；Sensor is driven after described, rear-guard innervation should Piece, straight trip sensor, skidding sensor, pattern switching sensing chip are electrically accessed respectively controller, the controller with exchange driving Motor module control connection；

Fluid path part includes electromagnetic switch valve group, bidirectional hydraulic lock, and the hydraulic jack being hinged on fork truck body connecting seat, The piston rod of the hydraulic jack is hinged on front wheel carrier, external hydraulic source through electromagnetic switch valve group, bidirectional hydraulic lock fuel feeding extremely Hydraulic jack, controller is connected with the control of electromagnetic switch valve group in electric part.

2. four-way according to claim 1 moves forward the mechanical-electrical-hydraulic integration system of fork truck one key switching walking mode, and it is special Levy and be：Auxiliary stopper device is also equipped with front wheel carrier.