CN109892032B - A kind of electronic handling carrier of four-way side formula - Google Patents

Abstract

The present invention relates to a kind of electronic handling carrier of four-way side formula, this fork truck includes vehicle frame, driver's cabin, driving driving system, steering system, braking system, portal frame system, hydraulic system, electrical system；Vertical machine is used using multiple mechanisms and Vehicular turn, running gears such as single motor, single oil pump driving door frame promotion, pallet fork forward moving, sidesways, reduces amount of parts, clean, low noise；It is designed using explosion-proof anti-static function, is suitble to the operation of library hazardous area.The beneficial effects of the present invention are: the explosive goods and materials of overlength stacking, carrying in long and narrow closed environment are mainly solved, and in the carrying problem of outdoor gradient hard surfacing high over long distances, and assembly is simple, convenient for Operation and maintenance.

Description

A kind of electronic handling carrier of four-way side formula

Technical field

The present invention relates to a kind of long body goods and materials handling vehicles, in particular to a kind of super for storing Long, overweight and small-sized unit load warehouse homework, can four-way traveling the electronic handling of side formula Vehicle.

Background technique

The country is suitble to the equipment of long body goods and materials handling to be mainly combustion engine powered Side Fork Lift Trucks, should Kind vehicle is used as power with internal combustion engine, and the smog pollution of discharge is big, and no explosion prevention function is not suitable in air It does not circulate and has an operation in the closed storehouse of requirement of explosion proof.Currently, the country there is no electric side forklift. The vehicle carries goods and materials overlength, overweight, and other kinds of electri forklift is by itself operation stability and storehouse The narrow limitation of working space is also unable to satisfy operation.In addition, being transported according to gantry crane handling and trailer Defeated mode, it is necessary to structure plant retrofit be carried out to storehouse, fund and time investment are very huge.

There are electronic sorting formula fork truck and side of multiple company's productions for the long body goods and materials of handling in foreign countries Face fork truck, but vehicle, using wide article carrying platform, Gao Qisheng door frame, outer dimension is big, can not be by narrow Narrow short channel；Its vehicle frame point or so two parts, hinged by intermediate pin shaft, left and right two parts can It is opposite to swing up and down, guarantee tire ground connection, but vehicle frame objective table both ends are limited by the amplitude of swinging up and down, Length cannot be too big, generally all within 5m, and carries goods and materials to the requirement of carrying platform length minimum 6m or more.In addition, the external similar electric vehicle road clearance is small, driving method mainly uses one Driving wheel carries out single wheel drive, is unsatisfactory for great slope by angle and driving force or compared with the library of high obstacle Room environment；Driving wheel using wheel side integrate motor driven, no explosion prevention function, cannot have it is explosion-proof prevent it is quiet It is used in the storehouse that electricity requires.

Summary of the invention

The present invention relates to a kind of long body goods and materials handling vehicles, in particular to a kind of super for storing Long, overweight and small-sized unit load warehouse homework, can four-way traveling the electronic handling of side formula Vehicle.The feature of operating environment of the present invention is narrow, the tight anti-explosion environment of library door, spaces compact in library, goes out Enter that warehouse passage is long, narrow, the short and gradient is big, and obstacle with higher.The length of manipulating object Degree is greater than 3 meters, and packaging form has certain height and width.Skill to be solved by this invention Art problem is to provide a kind of handling carrier, the vehicle can omnidirectional running, be suitble to the long body in existing warehouse Goods and materials handling transport meets the flexible operation of narrow and small place in library, and without exhaust emission, has explosion-proof Function, low noise are suitble to the operation of storehouse hazardous area.The present invention is a kind of three fulcrum four-way batteries Side explosion proof forklift, it is characterized in that compact appearance, the high jacking capacity of three-level door frame, climbing capacity is strong, Longevity of service can assemble a variety of accessories, and there is fork to fill, lift, clamp several work mode.

The technical solution for realizing the aim of the invention is as follows:

A kind of electronic handling carrier of four-way side formula, including vehicle frame, driver's cabin, driving driving system, Steering system, braking system, portal frame system, hydraulic system, electrical system.

The vehicle frame uses Side Fork Lift Trucks body frame structure for automotive, and loading platform, loading platform side is arranged in vehicle frame side For dress there are two front-wheel is driven, another measured center position is equipped with double juxtaposition driven rear wheels, becomes to reduce vehicle frame Shape simultaneously improves whole vehicle stability, and it is universal that double juxtaposition wheels side close to the symmetrical elasticity in vehicle frame both ends is equipped with two Wheel, when ground is not very smooth, two universal wheels still can well be contacted with ground.

The driver's cabin is located at vehicle frame one end, seat and steering wheel with antistatic.A left side for driver's cabin There is protective device in side, throws away seat when operating car to avoid driver.Setting manipulation in driver's cabin System, using ergonomic designs, all operations of vehicle, such as traveling, steering, braking and heap Pile and electricity show, malfunction coefficient, headlight, turn signal, loudspeaker, emergency braking etc. are driving Interior can facilitate completion.

The driving driving system uses two independent driving units, i.e. battery is respectively two explosion-proof Vertical AC motor separately provides power, after bevel gear deceleration device, two driving wheel power outputs and power Square drives vehicle driving, and the control of speed is realized by automatically controlled.

The steering system uses all-wheel steering device, including two front wheels steering cylinder, rear-axle steering oil Cylinder, rack pinion or link transmission or both combine transmission.Two driving front-wheels are fitted with identical Rack and pinion drive or link gearing, respectively by the piston rod of respective front-wheel steer oil cylinder Displacement is converted into the corner of wheel, and two steering cylinders pass through matching treatment, make one of steering cylinder Oil outlet is associated with the only mouth of another oil cylinder, to keep the displacement of two oil cylinders identical, to guarantee two The corner of front-wheel is identical.Rear-axle steering oil cylinder is realized by being installed on the rack and pinion drive of rear-wheel Rear-axle steering.When vehicle is in cross running, two driving wheels cannot be turned to, and be turned to by rear-wheel, The steering angle of rear-wheel feeds back to automatically controlled, the differential of control two wheels in front, realizes straight trip or turning row It sails；When longitudinal direction of car when driving, this two driving wheels, are both driving wheel and deflecting roller, rear-wheel Longitudinally locked, two driving wheel opposite directions rotate equal angular, turn in toed-in or toed-out；Two drive Driving wheel and rear-wheel can independently realize 180 ° of rotations.Corner size same direction phase between two front wheels Instead.

The portal frame system include pallet fork system, three-level door frame, door frame Forward balladeur train, lift oil tank, Door frame reach oil cylinder, supporting leg push-pull mechanism etc., the three-level door frame door frame reach oil cylinder push-and-pull under, It can move forward and retreat on door frame Forward balladeur train, it is real by chain pulley etc. under lift oil tank effect Now lift；The pallet fork system includes pallet fork sidesway system, pallet fork forward moving system and fork mechanism, institute Pallet fork sidesway system is stated by sidesway oil cylinder, sidesway balladeur train, pallet fork support frame composition, the pallet fork support Frame is mounted on third level door frame, is realized using the sidesway oil cylinder and sidesway balladeur train being assemblied on door frame left Right side is moved, and the pallet fork forward moving system is made of reach oil cylinder, pallet fork set, and the pallet fork set is sleeved on On pallet fork support frame, is realized and be moved forward and backward using the reach oil cylinder being assemblied on pallet fork support frame, it is described Fork mechanism is mounted on pallet fork and puts on, and movement is the vector that side shifter and advancing device generate displacement It can be lifting accessory with, fork mechanism, fork dress accessory and clamp accessory etc., pallet fork system can facilitate Pallet fork position is finely tuned when forklift workability, in favor of operation under the conditions of intensive stacking.The pallet fork system Fork mechanism can be lifted, pitch dress or clamp operation；Portal frame system also uses two supporting leg push-and-pull machines Structure, the mechanism include supporting leg push cylinder, vertical leg, the auxiliary support wheel being mounted on vertical leg.Two Leg push-pull mechanism is arranged symmetrically in loading platform side close to vehicle frame both ends.The mechanism under fully loaded transportation condition, When door frame releases certain distance, vertical leg is released by push cylinder, auxiliary support wheel lands at this time, Place is outside two driving wheel axis of vehicle frame front end, thus stability when enhancing operation.When door frame retracts When certain distance, push cylinder automatically withdraws vertical leg；

The hydraulic system is by oil pump, steering cylinder, explosion-proof electromagnetic multiple directional control valve, diverter, more The composition such as road valve, lift oil tank, door frame reach oil cylinder, pallet fork forward moving oil cylinder.Entire hydraulic system is adopted With open system, walking, raising turn to and share a hydraulic pump, by motor connecting belt hydrodynamic press pump, Pressure oil flows through electromagnetic valve outlet through the pump housing, can be independently to diverter fuel feeding, and the diverted device of working oil pushes away Dynamic front-wheel steer oil cylinder and rear-axle steering oil cylinder, realize front-and rear-wheel steer, and hydraulic motor passes through overflow Valve connects with manual proportional multi-way valve, realizes to pallet fork forward moving oil cylinder, sidesway oil cylinder, door frame reach oil cylinder With the control of lift oil tank；Hydraulic System Oil pump motor point work processed, steering motor and promotion motor are public With a motor, controlled by automatically controlled program.When the vehicle is running, direction switch, which is in, advances Or state is fallen back, Oil pump electrical machinery slow rotation gives diverter fuel feeding, realizes Turning travel, works as direction Switch is by advancing or when the state of falling back reaches vacancy, motor delay working, until stopping.Work as multi-way valve Solenoid valve open when, Oil pump electrical machinery full speed operation, pass through hydraulic system realize equipment movement； The hydraulic system system of equipment and the hydraulic system of walking are two sets of independent hydraulic systems, but it Public a set of promotion motor and oil pump.Due to consideration that explosion-proof, the multi-way valve of lifting system shares one On the one hand a explosion-proof travel switch is triggered the work of Oil pump electrical machinery by this travel switch, in addition a side Face input controller controls the running speed of motor.

The electrical system includes explosion-proof direct current generator, battery, explosion-proof battery case, explosion-proof electrical source Case terminal box, explosion-proof light indicator light, explosion-proof signal lamp, hydraulic valve control electromagnet, sensor, There is provided power, control, illumination and signal designation for vehicle, can be realized power supply control, traveling control, Control for brake, lift control and position limitation protection, traveling raising interlocking, battery under-voltage protection, event Barrier detection, and shown for driver's cabin raising manipulation box function and instrument, facilitate human-computer interaction；

Hydraulic system and electrical system combination, control vehicle operation.Wherein pass through operation K5, K6 Switch key and automatically controlled program can be convenient the conversion for quickly realizing vehicle vertically and horizontally driving mode.Vehicle When cross running mode, rear-wheel is deflecting roller.Function switch switch is beaten to K5, solenoid valve L3, L5 obtains electric, 1 ante-chamber oil inlet of front-wheel steer oil cylinder, until triggering travel switch K7 movement, signal Output is kept, two front wheels turn in place, while the input of K7 signal is automatically controlled, automatically controlled control L1, L3, L4, L5 power loss, L2 obtain electric, and steering system is in rear-axle steering idling mode, and vehicle is transferred to cross To driving mode.For vehicle in longitudinal driving mode, two front driving wheels are deflecting rollers.By function switch Switch is beaten to K6, and solenoid valve L1, L2, L3 must not be electric, and L4, L5 obtain electric, rear-axle steering oil cylinder Back cavity oil inlet keeps output state to travel switch K8, and handling angle potentiometer keeps 90 ° of output shapes State, i.e., in longitudinal direction, all of above solenoid valve is realized by automatically controlled control.Two driving motors Revolving speed is identical, oppositely oriented, adjusts the speed by Accelerator control.

The braking system includes that hand brake, foot brake, electronics output rotor, explosion-proof stroke are opened Close, contracting brake or spot-type disc brake, hand braking flexible axle, master cylinder, foot brake oil pipe, Brake cylinder.Driving foot brake, parking hand braking and regenerative braking can be achieved.

Service brake, the braking of oil pressure band brake type power loss, i.e. foot brake.Foot steps on the braking of brake 21 Pedal compresses master cylinder 41, is connected to brake cylinder 43 by pipeline 42, acts on band-type brake 39, so that band-type brake 39 holds the rotation of 37 locking motor of motor output shaft tightly, to realize car reduction of speed Until parking.When in addition braking again, on-off action of driving a vehicle, so that motor power loss.

Stopping brake, the braking of mechanical hatching gate formula power loss are that is, hand braking.5 brake handle of drawing article leads to Crossing hand braking flexible axle closes up 3 band-type brake of part, and the friction plate on band-type brake holds Motor Shaft, locking electricity tightly The rotation of machine, the torque by reducing case amplifies, to realize parking, guarantees vehicle in stopping brake When, car cannot be started, have driving switch 2 to control.

Auxiliary braking, i.e. regenerative braking are realized by the regenerative braking capability of alternating current generator.Originally Electricity, is converted into wiring energy by motor acting, when release the accelerator pedal, at this time due to the effect of inertia, Mechanical energy is converted to electric energy by motor, is used as generator, to play the role of reducing speed. The power of regenerative braking can be set by controller, can substantially reduce mechanical friction piece in this way Abrasion and heating problem extend the service life.

Compared with prior art, the present invention its remarkable advantage:

(1) be used as improvement of the present invention, vehicle frame objective table except door frame Forward part need space in addition to, Its excess-three face is surrounded by car body, in the handling process, can effectively avoid collide loaded it is explosive Goods and materials further increase safety.

(2) handling carrier characteristics of compact layout of the invention, high, the wide size of vehicle is small, has a variety of Steering mode, can omnidirectional running, be suitble to the long body goods and materials handling transport of existing warehouse, meet narrow in library The small flexible operation in place, and road clearance with higher and climbing capacity.

(3) vehicle one end is provided with driver's cabin, to ensure driving vision and operation convenience, in vehicle The body other end is disposed with camera, in image transmitting to driver's cabin.Using single motor, single oil pump driving Multiple mechanisms and the Vehicular turns such as door frame promotion, pallet fork forward moving, sidesway, running gear is using vertical Motor reduces amount of parts, and clean, low noise uses explosion-proof anti-static function and designs, It is suitble to the operation of library hazardous area.

Detailed description of the invention

Fig. 1 is handling carrier front view of the invention；

Fig. 2 is handling carrier side view of the invention；

Fig. 3 is the steering system figure and its partial structural diagram of handling carrier of the invention；

Fig. 4 is the hydraulic scheme of handling carrier of the invention；

Fig. 5 is the brake composition of handling carrier of the invention；

Fig. 6 is the auxiliary leg installation diagram of handling carrier of the invention.

Specific embodiment

Steering system uses all-wheel steering device, including two front wheels steering cylinder 30 and 29, rear rotation To oil cylinder 28, rack pinion or link transmission or both combine transmission.Two driving front-wheels 1 are all Identical rack and pinion drive or link gearing 45 are installed, it respectively will respective preceding rotation The corner of wheel is converted into the displacement of the piston rod of oil cylinder 29 and 30, two steering cylinders 29 and 30 pass through Matching treatment keeps the oil outlet of one of steering cylinder associated with the only mouth of another oil cylinder, from And keeping the displacement of two oil cylinders identical, the corner to guarantee two front wheels is identical.Rear-axle steering oil cylinder 28 is logical Cross 44 device of the rack pinion realization rear-axle steering for being installed on rear-wheel.When vehicle is in cross running When, two driving wheels 1 cannot turn to, and be turned to by rear-wheel 2, and the steering angle of rear-wheel 2 feeds back to electricity Control controls the differential of two wheels 1 in front, realizes straight trip or turning driving；When longitudinal direction of car travels When, this two driving wheels 1, are both driving wheel and deflecting roller, and rear-wheel is longitudinally locked, two drivings It takes turns opposite direction and rotates equal angular, turned in toed-in or toed-out；Two driving wheels can be only with rear-wheel It is vertical to realize 180 ° of rotations.The corner size same direction between two front wheels is opposite.

Portal frame system include pallet fork system, three-level door frame 7, door frame move forward sliding 5 framves, lift oil tank 9, Door frame reach oil cylinder 6, supporting leg push-pull mechanism etc..Three-level door frame door frame reach oil cylinder 6 push-and-pull under, It can move forward and retreat on door frame Forward balladeur train 5, under the effect of lift oil tank 9, pass through chain pulley Equal realizations lifting.Portal frame system also uses two supporting leg push-pull mechanisms, which includes supporting leg push-and-pull oil Cylinder 25, vertical leg 24, the auxiliary support wheel 23 being mounted on vertical leg.Two supporting leg push-pull mechanisms are in loading Platform side is arranged symmetrically close to 3 both ends of vehicle frame.Under fully loaded transportation condition, door frame releases a spacing for the mechanism From when, vertical leg 24 is released by push cylinder 25, auxiliary support wheel 23 lands at this time, touchdown point Outside 3 front end of vehicle frame, two driving wheel, 1 axis, thus stability when enhancing operation.When door frame retracts When certain distance, push cylinder 25 automatically withdraws vertical leg 24；

Hydraulic System Oil pump motor point work processed, steering motor and the promotion public motor of motor, by Automatically controlled program is controlled.When the vehicle is running, direction switch, which is in, advances or falls back state, oil Pump motor slow rotation gives 31 fuel feeding of diverter, Turning travel is realized, when direction switch is by advancing Or state is fallen back when reaching vacancy, motor delay working, until stopping.When the solenoid valve of multi-way valve is beaten When opening, the movement of equipment is realized in Oil pump electrical machinery full speed operation by hydraulic system.Equipment Hydraulic system system and the hydraulic system of walking be two sets of independent hydraulic systems, but they public one Set promotes motor and oil pump.Due to consideration that explosion-proof, the multi-way valve of lifting system shares an explosion-proof row On the one hand Cheng Kaiguan is triggered the work of Oil pump electrical machinery, still further aspect input control by this travel switch Device processed controls the running speed of motor.

Hydraulic system and electrical system combination, control vehicle operation.Wherein pass through operation K5, K6 Switch key and automatically controlled program can be convenient the conversion for quickly realizing vehicle vertically and horizontally driving mode.Vehicle When cross running mode, rear-wheel is deflecting roller.Function switch switch is beaten to K5, solenoid valve L3, L5 obtains electric, 1 ante-chamber oil inlet of front-wheel steer oil cylinder, until triggering travel switch K7 movement, signal Output is kept, two front wheels turn in place, while the input of K7 signal is automatically controlled, automatically controlled control L1, L3, L4, L5 power loss, L2 obtain electric, and steering system is in rear-axle steering idling mode, and vehicle is transferred to cross To driving mode.For vehicle in longitudinal driving mode, two front driving wheels are deflecting rollers.By function switch Switch is beaten to K6, and solenoid valve L1, L2, L3 must not be electric, and L4, L5 obtain electric, rear-axle steering oil cylinder Back cavity oil inlet keeps output state to travel switch K8, and handling angle potentiometer keeps 90 ° of output shapes State, i.e., in longitudinal direction, all of above solenoid valve is realized by automatically controlled control.Two driving motors Revolving speed is identical, oppositely oriented, adjusts the speed by Accelerator control.

Braking system includes hand brake 20, foot brake 21, electronics output rotor 37, explosion-proof row Cheng Kaiguan 38, contracting brake 39 or spot-type disc brake, hand braking flexible axle 40, master cylinder 41, foot brake oil pipe 42, brake cylinder 43.Driving foot brake, parking hand braking and again can be achieved Raw braking；Service brake, the braking of oil pressure band brake type power loss, i.e. foot brake.Foot steps on brake 21 Brake pedal compresses master cylinder 41, is connected to brake cylinder 43 by pipeline 42, acts on and embraces Lock 39, so that band-type brake 39 holds the rotation of 37 locking motor of motor output shaft tightly, to realize car Reduction of speed is until parking.When in addition braking again, on-off action of driving a vehicle, so that motor power loss；Stopping brake, The braking of mechanical hatching gate formula power loss, i.e., it is hand braking.5 brake handle of drawing article, is made by hand braking flexible axle It obtains 3 band-type brake of part to close up, the friction plate on band-type brake holds Motor Shaft tightly, and the rotation of locking motor passes through The torque amplification of case is reduced, to realize parking, guarantees that vehicle in stopping brake, cannot start vehicle Son has driving switch 2 to control；Auxiliary braking, i.e. regenerative braking pass through the regeneration of alternating current generator Braking function is realized.Electricity, is converted into wiring energy by original motor acting, when release the accelerator pedal, At this time since mechanical energy is converted to electric energy by the effect of inertia, motor, used as generator, thus Play the role of reducing speed.The power of regenerative braking can be set by controller, in this way can be with Abrasion and the heating problem of mechanical friction piece are substantially reduced, the service life is extended.

Function of the invention and corresponding working principle are described as follows:

Power supply control: power turn-on master switch, the instrument on operation panel show fork truck cumulative operation time, The electricity for switching to battery after kind is shown within several seconds.Cumulative operation time is that fork truck is switched on every time to when shutting down Between it is cumulative, for fork truck use, safeguard basis of time be provided.

Traveling control: the traveling of this fork truck uses double drive alternating current generator speed control, two driving controls Device processed controls two driving motors respectively, and the corresponding controller of left motor is master controller, except being responsible for a left side Outside drive and control of electric machine, entire vehicle electrical system is managed, the corresponding controller of right motor is secondary control Device processed is responsible for the drive control of right motor.When driving, it is passed through by the steering potentiometer signal of steered wheel rotation After GO TO table comparing in submaster controller and internal processes, master control is passed to by CAN bus Device processed is to realize the electronic differential of left and right wheels.

Equipped with vertical and horizontal selection switch on operation panel.

When longitudinal driving, vertical and horizontal selection switch is threaded to lengthwise position, the left behaviour on operation panel Vertical pole is forward-reverse request switch, by control stick to being pushed forward when advance, and slowly steps on accelerator, pitches Vehicle moves forward.Control stick is pulled back when retrogressing, accelerator fork truck is slowly stepped on and travels backward.Becoming Before changing forward-reverse request switch, first have to that fast device will be allowed to return to zero.

When cross running, vertical and horizontal selection switch is threaded to lateral position, at this time three on fork truck A wheel will control two front driving wheels from longitudinal state shift transverse state, steering wheel.It travels to the left When, the left control stick on operation panel is pulled back, accelerator is slowly stepped on, fork truck travels to the left.To the right When driving, by the left control stick on operation panel to being pushed forward, accelerator is slowly stepped on, fork truck is to right travel.

Lift control: the raising of fork truck controls pump motor by a controller, using alternating current generator speed Degree control.Lift control includes shifting and pallet fork or so shifting before and after hydraulic power-assisted steering, door frame.

When the left control stick on operation panel is to when being pushed forward or pulling back, pump motor is started to work, electric at this time Machine is in low-voltage slow-speed of revolution working condition.By the distributing valve in hydraulic circuit to the power steering of fork truck Oil is sent, when moving valve rod or pallet fork or so shifting valve rod before and after pulling raising valve rod or door frame, pump motor is complete Press full speed running.One power steering is just omitted using the great advantage of controller control pump motor Motor saves installation space, while big motor slow-speed of revolution low noise, electric current are small.

Height limit: to prevent oil cylinder lift from going beyond the limit of, design has height limit in fork lift truck structure part Device to avoid oil cylinder from generating mechanical impact when rising top, and is mounted with height limit on forklift door frame Switch, when pallet fork reaches the limit of height, raising circuit will be cut off.

Traveling, raising interlocking: it in order to improve safety of the fork truck in operation, controls and is provided in program Traveling and raising interlock function are unable to raising, in raising that is, using competition priority principle in motion Shi Buneng traveling.

Manipulate box function: equipped with instrument, forward/backward request switch, left/right turn side on operation panel To lamp switch, longitudinal direction/horizontal selection switch, horn switch button, luminous lamp switch.

Instrument is shown: the instrument on operation panel can show cumulative operation time (booting moment), electric power storage Pond electricity, low battery alarm, fork truck malfunction coefficient and fault code.

Under-voltage protection: the instrument on operation panel will show electric power storage tank discharge after opening several seconds kinds of power supply Amount, discharge capacity shown with " % " value it is aobvious, such as: 100% is shown when fully charged.

Theoretically, battery is discharged beyond 80% category overdischarge, and overdischarge will damage battery, and drop Low battery life.Therefore when the liquid crystal display of instrument is close to 20%, charge alert lamp starts to flash, It should charge in time at this time, when continuing to use arrival 20%, system is to protect battery rising fork truck Circuitry cuts are risen, forces and stops running.

Braking: fork truck design has foot brake (mechanical braking) and hand braking, and foot brake is service brake, Hand braking is parked braking, and when hand braking, the traveling of fork truck fails.

Since alternating current generator speed control has good regenerative braking capability, foot brake is visual For auxiliary braking, this makes fork truck safer.

Malfunction monitoring: various malfunction monitorings are set in the control program of fork truck, these malfunction monitorings Damage including electrical device, the operating mistake and motor of operator, the overheat of controller, overcurrent etc.. When fork truck breaks down, the trouble light in the instrument lower right corner is lighted, and liquid crystal display shows fault code, journey Ordered pair fault code is defined, and has worked out fault code table, inquires failure according to fault code Code table can help professional to search the fork truck problem rapidly.But it is noted that some Failure is that fork truck enters guarantor due to operator's operation order mistake or motor, controller overheat etc. Shield state is not the failure in just sincere justice, entangles to mistake although the possible disabler of fork truck Just or temperature reduces, and fork truck can normally move row again.

Claims (4)

1. a kind of handling carrier, including vehicle frame (3), driver's cabin (11), driving driving system, Steering system, braking system, portal frame system, hydraulic system, electrical system, the vehicle drive (3), Using Side Fork Lift Trucks body frame structure for automotive, loading platform is arranged in vehicle frame side, and there are two drivings for loading platform side dress Front-wheel (1), other side center are equipped with double juxtaposition driven rear wheels (2), to reduce vehicle frame (3) Whole vehicle stability is deformed and improves, double juxtaposition driven rear wheel (2) sides are close to the symmetrical bullet in vehicle frame both ends Property is equipped with two universal wheels (22)；The driver's cabin (11) is located at vehicle frame (3) one end, tool There are the seat (19) and steering wheel (13) of antistatic；The driving driving system, using full wheel Transfer, including two front wheels steering cylinder (29,30), rear-axle steering oil cylinder (28), gear Rack-driving or link transmission or both combine transmission, and two drivings front-wheel (1) are fitted with identical tooth Take turns rack gearing or link gearing (45), respectively by respective front-wheel steer oil cylinder (29, 30) piston rod displacement is converted into the corner of wheel, two front wheels steering cylinder (29,30) process With processing, rear-axle steering oil cylinder (28) is by being installed on the rack and pinion drive (44) of rear-wheel Realize rear-axle steering；Before the portal frame system, including pallet fork system, three-level door frame (7), door frame Move balladeur train (5), lift oil tank (9), door frame reach oil cylinder (6), two supporting leg push-pull mechanisms；Institute The portal frame system stated also uses two supporting leg push-pull mechanisms, which includes supporting leg push cylinder (25), leg (24), the auxiliary support wheel (23) being mounted on vertical leg, two supporting leg push-pull mechanisms are found It is arranged symmetrically in loading platform side close to vehicle frame (3) both ends；The hydraulic system, by oil pump (27), Two front wheels steering cylinder (29,30), rear-axle steering wheel (28), explosion-proof electromagnetic multiple directional control valve, Diverter (31), multi-way valve (32), lift oil tank (6), door frame reach oil cylinder (6), pallet fork Reach oil cylinder (15) composition；The electrical system, characterized in that including explosion-proof direct current generator, Battery, explosion-proof battery case, explosion-proof power box terminal box, explosion-proof light indicator light, explosion-proof signal Lamp, hydraulic valve control electromagnet, sensor；The braking system, characterized in that including hand-made Dynamic device (20), foot brake (21), electronics output rotor (37), explosion-proof travel switch (38), Contracting brake or spot-type disc brake (39), hand braking flexible axle (40), master cylinder (41), Foot brake oil pipe (42), brake cylinder (43), it can be achieved that driving foot brake, parking hand braking and Regenerative braking.

2. a kind of handling carrier according to claim 1, which is characterized in that the goods Fork system includes pallet fork sidesway system, pallet fork forward moving system and fork mechanism, and pallet fork sidesway system is by side Move oil cylinder (8), sidesway balladeur train (18), pallet fork support frame (16) composition.Pallet fork support frame (16) It is mounted on third level door frame (7), utilizes the sidesway oil cylinder (8) and sidesway being assemblied on door frame Balladeur train (18) realizes left and right sidesway.

3. a kind of handling carrier according to claim 2, which is characterized in that the goods Pitching Forward system includes reach oil cylinder (15), pallet fork set (17), and pallet fork set (17) is sleeved on goods It pitches on support frame (16).

4. a kind of handling carrier according to claim 2, which is characterized in that the goods Fork mechanism be mounted on pallet fork set (17), fork mechanism be lifting accessory (14), fork dress accessory and Clamp accessory.