CN107364811A - Automatic synchronization fork truck - Google Patents

Abstract

Automatic synchronization fork truck, including car body, hanging block, pallet fork, reel, drawstring, drawstring, sliding box, motor, detector, sled lift device, control system.Side, which can be loaded, without pallet directly fork does not have the goods of pallet fork insertion space.Fork plate is fixed on hanging block lower end.Hanging block is arranged on the front door frame of car body.Pallet fork is made up of fork plate and drawstring.Detector is installed on car body.Sliding box is installed in fork plate, sled lift device is installed on sliding box.Upper and lower reel and upper and lower reel motor are installed on hanging block.During fork dress bagged articles, fork plate front end is first suitably injected by lift sack below contraction-like space.Upper and lower reel, which coordinates, to be rotated, and control system controls upper and lower reel motor, motor, drawstring in pallet fork advance is retreated and fork plate advance automatic synchronization.During fork vanning body type objects, the sled block wedge mouth of sled lift device first inserts casing a little gap below, pries open some gaps, in the horse back inserted into gap of fork plate front end, advances, and is inserted through casing and lifts below and transports.

Description

Automatic synchronization fork truck

Technical field

The invention belongs to fork truck field, particularly automatic synchronization fork truck.

Background technology

In the short-haul operation object of town and country, workload is especially big, is that can mitigate worker's work by force with carrying fork truck Degree, improve work efficiency.But be handled upside down object and must have fork of forklift truck insertion space below, otherwise, fork truck can not be pitched Dress.Now generally in bagged articles or the following placement tray of casing class goods, pallet has the space of insertion pallet fork below, and fork truck can be with Carry.It is most of without pallet but in vast rural area, many shops in city, storehouse, goods gets on and off and stacked, entirely Manually carry, both worked hard, efficiency is also low.

The content of the invention

It is an object of the invention to provide a kind of can smoothly pitch to load side and not to have the packed object and case of pallet fork insertion space The automatic synchronization fork truck of body type objects.

What the present invention was realized in：Automatic synchronization fork truck, including car body, hanging block, pallet fork, reel, drawstring, drawstring, cunning Box, motor, detector, sled lift device, control system.Pallet fork is made up of fork plate and drawstring.Fork plate is fixed on hanging block lower end.Hanging block On the front door frame of car body.Sliding box is arranged in fork plate.Sled lift device is arranged on sliding box.Wheel drive is installed on car body Dynamic motor.Reel and upper reel motor, lower reel and lower reel motor are installed on hanging block.Connect and be wound with upper reel Upper drawstring, connect on lower reel and be wound with lower drawstring.Detector is installed on car body.Drawstring one end connects with sliding box front end top Connecing, the other end is along fork plate front end is moved to above fork plate, around the arc surface of fork plate front end, the protective case chamber pierced into below fork plate, with Lower drawstring connection on lower reel.Sliding box rear end top is connected with upper drawstring one end, and upper drawstring other end head bypasses directive wheel, with Upper reel connection.Under forklift loading or unloading during goods, control system is simultaneously to the motor, upper reel motor and lower strand of fork truck Turbin generator is powered, and controls motor rotating speed, fork truck is at the uniform velocity advanced or is retreated, detector is according to the actual row of the fork truck detected Speed is walked to adjust the upper reel motor of control and lower reel motor, before making drawstring retrogressing or pace and the fork plate in fork plate Enter or astern speed is identical.Automatic synchronization fork truck includes electri forklift and internal combustion engine fork lift.There is another extra bus wheel in internal combustion engine fork lift Motor or the structure for being not added with wheel drive motors.Pallet fork has the structure with sliding block.Another extra bus wheel drive in internal combustion engine fork lift Motor, additionally mounted a motor and clutch in internal combustion engine fork lift, when pitching loading thing, fork truck is driven with motor Slowly walk, motor and upper reel motor, lower reel motor synchronous matching, fork truck are usually used as power walking with internal combustion engine. Fork plate has the structure with swash plate and without swash plate.Sled lift device has single sled block or double sled block structures.Roller is installed in fork plate.Electricity The useful hydraulic pressure of machine or the structure of air pressure substitution.Pallet fork with sliding block, fork plate are fixed on sliding block lower end.Pallet fork with sliding block, hanging block On be provided with slideway, sliding block is arranged in slideway.Pallet fork with sliding block, hanging block upper end are provided with lowering or hoisting gear.Upper reel, lower strand Wheel has installation on the same axis with the structure of a motor driven.

Automatic synchronization fork truck refers to electri forklift and internal combustion engine fork lift, hereinafter referred to as fork truck.Below mainly with electri forklift Narration.The pallet fork of fork truck is made up of fork plate and drawstring.Fork plate rear end is fastened on hanging block lower end.Before hanging block is arranged on fork truck On door frame, front door frame is arranged on the door frame of fork truck.

Fork plate is the flat-shaped metallic object of strip.It is the swash plate of one section of oblique lower section in front of fork plate, swash plate front end is arc surface.Fork There are protective case chamber and protective case below plate.

Drawstring is that tensile strength is very big, and very wear-resisting braid over braid, and thickness is typically in 1 to 2 millimeter.Lifting capacity compared with Big vehicle, drawstring thickness is more than 3 millimeters.

Sliding box is arranged in fork plate, can be slid back and forth in fork plate.The drawstring being connected above with sliding box rear end calls drawstring, The drawstring being connected with the drawstring in protective case chamber below fork plate is lower drawstring.The reel being connected with upper drawstring calls reel, with drop-down The reel connected restrict lower reel.Upper reel motor calls reel motor, and lower reel motor is lower reel motor.On Reel and upper reel motor, lower reel and lower reel motor are all arranged on hanging block.Directive wheel is arranged under the forward and backward face of hanging block Side.

One termination of drawstring is fixed on the housing of sliding box front end top, and the drawstring other end bypasses fork plate front end above fork plate Arc surface, protective case chamber below fork plate is pierced into, is connected with lower drawstring.Lower drawstring pulls out from fork plate rear end, around directive wheel and lower strand Wheel connection, and the appropriate number of turns is twined in advance.Upper drawstring upper end is connected with upper reel and twines the appropriate number of turns in advance, and lower end bypasses directive wheel and cunning Box connects above rear end.Above fork plate and front end arc surface is very smooth, the frictional force very little with drawstring.

Sled lift device is installed on sliding box side.Sled lift device is by sled block, sled block arm, motor, screw mandrel, nut, support group Into.Sled block can stretch in block arm is prized.Block front end is prized into wedge-like.Sled block arm rear end is hinged at sliding box side rear end, motor, It can be rotated upwardly and downwardly under screw mandrel, nut effect.

Motor is installed on the driving wheel or wheel shaft of electri forklift.Motor, upper reel motor, lower reel motor All use servomotor.For fork truck in goods under pitching loading or unloading, motor rotating speed is set to one compared with low-rotate speed, make fork truck with Slower speed is at the uniform velocity advanced.The detector of installation detection fork truck actual displacement speed on car body.

Upper reel motor, the setting speed of lower reel motor are to drive wheel diameter according to the diameter and fork truck of upper and lower reel And motor setting speed and set in proportion.At the same time to three electrical powers in the case of, within any short period, Upper and lower reel furls drawstring in upper and lower reel motor-driven rotation or unclamps the length of drawstring all the time with being driven in the equal time The straight length for the track that dynamic motor driving fork truck driving wheel turns over is the same.

Operation principle：1st, forklift dress bagged articles process：Sliding box has been moved to specified location in front of fork plate and stopped.Fork truck Worm, fork plate front end is inserted into by appropriate depth in the contraction-like gap between fork lift sack and following sack.Parking Moment, by next " automatic key ".At this moment, control system is at once simultaneously same to motor, upper reel motor, lower reel motor Shi Tong electricity.Motor makes fork truck at the uniform velocity advance with the slower speed set.Lower reel motor is inverted with setting speed, lower reel Loosen.Upper reel motor rotates forward the upper drawstring of retracting with setting speed.Fork plate pace is as fork truck pace.Upper drawstring It is to draw the drawstring above fork plate to retreat to draw sliding box with identical speed.At this moment, in fork plate the astern speed of drawstring and fork plate advance Speed is identical.Drawstring below fork plate in protective case chamber is synchronously laid to above fork plate around fork plate front end arc surface.Fork plate is smooth Reeve is following by lift bagged articles, and fork truck is that liftable goods is transported.

During forklift fills bagged articles, the detector installed on car body passes to the actual speed of travel of fork truck detected To control system, after control system is handled, such as exceed setting error, just the upper reel motor of control adjustment in time, lower reel electricity Machine rotating speed, remain that the astern speed of drawstring is identical with fork plate pace in fork plate.

During unloading, goods is placed on appropriate height above rest area by fork truck, fork plate is not wiped following goods.Press Another " automatic key ".At this moment, upper reel motor reversal, upper reel loosen.Lower reel motor rotates forward, and furls drawstring.Fork plate is with fork Car is retreated by setting speed.Goods is put off in rest area.

2nd, forklift vanning body type objects process：The side of sliding box is mounted with sled lift device.Fork, which loads side, does not have pallet fork to insert When entering the casing in space.Sliding box is moved to fork plate front end specified location.Sled block arm turns downwards under motor, screw mandrel, nut effect Move in place.Block is prized to stretch out.Block front end is prized into wedge-like.Wedge mouth is injected by a little gap in the following edge of lift casing.Prize and turn on block arm Appropriate height, sled block pry open some following gaps of casing.Fork plate front end is injected in gap at once.Above-mentioned related key is pressed, Then reel is descended to loosen, upper reel rotates, and the drawstring above fork plate retreats, and by above-mentioned principle, process, drawstring retreats in fork plate Speed is identical with fork plate pace.Fork plate is smoothly inserted into following by lift casing, you can lifts casing and transports.

Internal combustion engine fork lift separately adds a motor and clutch, fork loading thing in the transmission of the gearbox of live axle When, with motor live axle, make three motor synchronizations as stated above.It is used as power during forklift-walking with internal combustion engine.Internal combustion There are the structure for only adding detector, when slowly at the uniform velocity advancing by fork truck on the basis of a jogging speed, root on the car body of machine fork truck According to this jogging speed and wheel diameter is driven, the setting speed of upper and lower reel motor is determined further according to upper and lower reel diameter.Control The rotating speed for the upper and lower reel motor of fork truck actual displacement rate signal control that system processed transmits according to detector, pulls up fork plate The retrogressing of band is maintained within a setting range with advance and the advance of fork plate with astern speed.

Fork truck is during goods under pitching loading or unloading, and fork plate and drawstring between lifting object by fork all with not rubbing.

Pallet fork has the structure with sliding block.If the horizontal height of two pallet forks of fork truck is all consistent, it is impossible to mutually adjusts appropriate height Degree, run into pitch lift goods be it is oblique, particularly goods lower gap it is smaller in the case of, two fork of forklift truck front ends are just There can only be a pallet fork to be aligned with gap, two pallet forks be made adaptable when the structure of height, it becomes possible to which fork fills oblique placement Object.

The advantage of the invention is that：1st, motor, upper reel motor, lower reel motor all use servomotor, and by " drawing Advance or astern speed of retrogressing or pace of the band in fork plate with fork plate are identical " set its respective rotating speed.Make fork truck When pitching goods under loading or unloading, fork plate and drawstring and by fork fill object between do not rubbed.It ensure that and lifted by fork lift object in fork Relative static conditions in journey, be not moved phenomenon, when reducing fork loading thing again, damage of the goods to fork plate and drawstring. 2nd, the overall process of goods under loading and unloading is pitched, all automatically controls completion, operation is very convenient.3rd, it can pitch and load side and there is no pallet fork The object of insertion space, make it is a large amount of manually the carrying work of manual labor becomes mechanically actuated originally, alleviate worker's labor Fatigue resistance, improve operating efficiency.

Brief description of the drawings

Fig. 1 is automatic synchronization fork truck overall structure figure.

Fig. 2 is fork plate structure chart.

Fig. 3 is the cross-sectional view of fork plate in Fig. 2.

Fig. 4 is upper and lower reel and reel motor installation and sliding box installation situation figure.

Fig. 5 is the A-A sectional views in Fig. 4.

Fig. 6 is forklift dress object fundamental diagram.

Fig. 7 is forklift dress object fundamental diagram.

Fig. 8 is sled lift structure drawing of device.

Fig. 9 is sled lift device fundamental diagram.

Figure 10 is sled lift device fundamental diagram.

Figure 11 is sled lift device fundamental diagram.

Figure 12 is sled lift device fundamental diagram.

Figure 13 is fork plate roller construction figure installed above.

Figure 14 is the pallet fork installation diagram with sliding block.

Figure 15 is fork plate without swash plate structure chart.

In accompanying drawing：Car body 1, door frame 2, hanging block 3, front door frame 4, lower reel motor 5, lower reel 6, upper reel motor 7, upper strand Wheel 8, upper drawstring 9, directive wheel 10, drawstring 11, fork plate 12, sliding box 13, sled block 14, sled block arm 15, swash plate 16, protective case chamber 17, shield Shell 18, even lower drawstring 19, block 20, bagged articles 21, drawstring 22, reel frame 23, small reel 24, electromagnet 25, spring 26, pivot pin 27th, nut 28, screw mandrel 29, motor 30, support 31, casing 32, roller 33, sliding block 34, ground 35.

Embodiment

It is automatic synchronization fork truck overall structure figure in Fig. 1.Fork truck body 1 is above provided with door frame 2, is provided with door frame 2 Front door frame 4.Hanging block 3 is installed on front door frame 4.Hanging block 3 is fixedly connected with fork plate 12 below.Sliding box 13 is arranged in fork plate 12. Upper reel 8 and upper reel motor 7, lower reel 6 and lower reel motor 5 are all arranged on hanging block 3.Directive wheel 10 is arranged on hanging block Below forward and backward face.Sled lift device is arranged on the side housing of sliding box 13.

It is fork plate structure chart in Fig. 2.It is the cross-sectional view of fork plate in Fig. 2 in Fig. 3.Fork plate 12 is fixed on the lower end of hanging block 3. Hanging block lower end is fixed on surface rear end centre position in fork plate, and one fixed width is left in hanging block lower end with plane both sides in fork plate.Fork plate It is the flat-shaped metallic object of strip, there is the swash plate 16 of one section of oblique lower section in front.The front end of swash plate 16 is arc surface.There is shield below fork plate Shell chamber 17 and protective case 18.It has been down the inclined-plane at angle, to be not drawn into Fig. 2 below the front end of protective case chamber 17.It is wider than top below fork plate.Draw Band 11 is that tensile strength is very big, and very wear-resisting braid over braid, and thickness is typically in 1 to 2 millimeter.The big vehicle of lifting capacity, Drawstring thickness can be more than 3 millimeters.Drawstring is layered on above fork plate, around fork plate front end arc surface, the protective case pierced into below fork plate In chamber 17, it is connected with lower drawstring 19, lower drawstring 19 pulls out from fork plate rear end.Plane and front end arc surface are all very smooth in fork plate, The frictional force very little between drawstring.Fork plate cross section and the drawstring such as Fig. 3 of the installation situation on fork plate and in protective case chamber institutes Show.

It is upper and lower reel and reel motor installation and sliding box installation situation figure in Fig. 4.It is that the A-A in Fig. 4 is cutd open in Fig. 5 View.Sliding box 13 is a square casing, in fork plate, front and rear in fork plate can be slid freely.Above sliding box back segment Vacancy is left among housing, in Fig. 5, when sliding box, which is moved rearwards, draws close hanging block, top shell can allow hanging block, and hang Block both sides slide-and-guide.Sliding box leading portion and middle housing are a square housings, are enclosed in fork plate.

The installation site of upper reel and upper reel motor, lower reel and lower reel motor is according to hanging block and door frame installation feelings Condition and upper drawstring 9, lower drawstring 19 determine with the actual conditions that drawstring is connected in the protective case chamber below sliding box and fork plate.In Fig. 4 It is convenient for observation narration, lower reel 6 and lower reel motor 5 are drawn on hanging block top.Upper reel 8 and upper reel motor 7 are drawn in Upper front in front of hanging block.The upper upper end of drawstring 9 is fixed and is wrapped on reel 8.The upper lower end of drawstring 9 bypasses directive wheel 10, uses Even block 20 is connected in the rear end top shell of sliding box 13.Before one end company block 20 of the drawstring 11 on fork plate 12 is connected to sliding box End is above.The drawstring other end bypasses the front end arc surface of fork plate 12, pierces into protective case chamber and is connected with lower drawstring 19.Hanging block is from top to bottom It is provided with the passage that lower drawstring passes through obliquely.Directive wheel is both provided with below fork plate rear end and hanging block rear.Lower drawstring 19 from Lower reel 6 passes through the slanted channel of hanging block from top to bottom, around the directive wheel 10 of below hanging block and fork plate rear end, pierces into protective case chamber In linked into an integrated entity with drawstring.

When upper reel motor reversal, loosen.Lower reel motor rotates forward, and furls lower drawstring.Then sliding box slides to fork plate front end. Conversely, then sliding box is to fork plate rear slide.

Motor is installed on the driving wheel or wheel shaft of fork truck.Motor when setting goods under forklift loading or unloading Rotating speed, fork truck is set to keep low speed at the uniform velocity to advance or retreat.The setting of upper reel motor, the lower basic rotating speed of reel motor, is basis Upper reel, the diameter of lower reel, fork truck driving wheel diameter, and the rotating speed of motor, are determined in proportion.At the same time to three In the case of electrical power, within any short period, upper reel, lower reel are in upper reel motor, the driving of lower reel motor Retracting or the upper and lower pulling rope length unclamped are equal with the path length that the driving wheel of motor driving rolls across on ground all the time.

The detector installed on car body, it is that the straight length that track is rolled across to driving wheel detects when fork freights thing, Straight-line displacement speed i.e. to car body detects.The inflatable rubber wheels installed on some fork trucks, due to air pressure change and Load is different, although the rotating speed that motor determines is constant, wheel rotates a circle and rolls across the straight length of track not necessarily It is identical.Detector just detects fork truck actual displacement speed, adjusts upper reel motor through control system, the rotating speed of lower reel motor comes Solves this problem.For the non-inflatable plastic wheel of some electri forklifts installation, detector can not had to.

There is row's rope structure on upper and lower reel, be not drawn into figure, upper and lower drawstring is only made monolayer alignment winding, it is not overlapping. Motor control drawstring retracting length is very accurate.

It is forklift dress object fundamental diagram in Fig. 7 in Fig. 6.The process of bagged articles 21 is filled with forklift to describe：Fig. 6 In, sliding box specified location in front of fork plate.Fork truck worms.Fork plate front end inject lift bagged articles 21 and following bagged articles it Between contraction-like gap in appropriate depth.Moment stops.Next automatic key is pressed simultaneously, then descends reel to loosen, upper reel turns It is dynamic.Upper drawstring on upper reel draws sliding box to draw drawstring to be retreated on fork plate through directive wheel.Before drawstring astern speed and fork plate It is identical to enter speed, makes sliding box holding constant with lifting the distance between bagged articles by fork.Meanwhile detector is real the fork truck detected Border velocity of displacement is transmitted to control system, and the signal that control system transmits according to detector such as exceedes setting error, just after processing Reel motor, the rotating speed of lower reel motor in adjust automatically.Remain drawstring astern speed and fork plate pace in fork plate It is identical.In Fig. 7, be fork plate advances situation below in bagged articles.Fork plate once i.e. be smoothly inserted through by fork lift object it is following, I.e. liftable bagged articles are transported.

It is sled lift structure drawing of device in Fig. 8.Sled lift device is prior art, has various structures, as long as sled block arm can be made to exist Block is rotated up and down and prized on sliding box to stretch in block arm is prized.Here only citing narration is a kind of.Prize block 14 and be arranged on sled block arm In 15.Spring 26 is arranged in the hole in sled block.Spring rear end is against sled block arm endoporus rear end.Directive wheel 10 is arranged on sled block arm On the pivot pin 27 of rear end.Reel frame 23 and sled block arm rear end fixed are integral.Prize block arm rear end and reel frame thickness ratio sled block arm Case width direction size is small, is to have a step therebetween.Directive wheel pivot pin 27 prizes block arm axle pin and is arranged on thickness Spend on small step surface.One small reel 24 is mounted with reel frame upper side, rap turbin generator is not drawn into.Drawing on small reel Rope 22 bypasses directive wheel 10, through sled block arm housing rear end, is linked together with sled block rear end.Installed on sled block arm housing leading portion One electromagnet 25.A fixture block is connected on the iron core of electromagnet 25.Fixture block passes through sled block arm housing.Electromagnet is powered, fixture block Withdraw；Electromagnet powers off, and fixture block stretches out under the action of the spring.Small reel loosens, and when spring pushes away the stretching of sled block in place, prizes block rear end The fixture block lower end on electromagnet is slipped over, then fixture block is injected in sled block arm, that is, is kept off in sled block back.When prizing block work, front end Even if in the case of firmly, sled block will not also retreat.When sled block will be withdrawn, electromagnet draws back fixture block, and rap wheel rotates, and draws sled block Retreat in place, small reel is locked.

Fig. 9, Figure 10, Figure 11, Tu12Zhong, it is sled lift device fundamental diagram.And fork vanning body type objects procedure chart.It is sliding Sled lift device is mounted with the housing of box side.Sled block arm rear end is hinged at sliding box side rear end.Motor 30 is hinged on sliding box On support 31.In order to which drawing is clear, electromagnet has been taken down.The output shaft front end of motor 30 is connected with a screw mandrel 29, and screw mandrel 29 is twisted Enter in nut 28.Nut 28 links together with the support 31 being hinged on sled block arm.The forward and backward of motor 30, you can make screw mandrel band Dynamic sled block arm rotates up and down.Prize block 14 to be arranged in sled block arm, can stretch.

In Fig. 9, sliding box is in fork plate front end.Position is gone under sled block arm, sled block stretches out.Inserted in front of sled block into wedge-like, wedge mouth Enter in a little gap of the lower edge of casing 32.

In Figure 10, screw mandrel rotates under motor driven, that is, drives nut, support to move up, that is, drives sled block arm to be rotated up One angle.Lifted on sled block, a gap is pried open below in casing 32.Fork plate front end is injected in the gap pried open at once.

In Figure 11, fork plate is advanced in gap, and expands gap.Sled block is had been retracted into sled block arm.And retreat drawstring Speed is identical with fork plate pace.

In Figure 12, it is following that fork plate has been inserted through casing.Fork truck is that liftable casing is transported.

Automatic synchronization fork truck includes electri forklift and internal combustion engine fork lift.Biography of the internal combustion engine fork lift in the gearbox of live axle Dynamic another plus a motor and clutch, when pitching loading thing, with motor live axle, make three electricity as stated above Machine is synchronous.It is used as power during forklift-walking with internal combustion engine.There is the structure for only adding detector on the car body of internal combustion engine fork lift, put with fork truck It is straight further according to upper and lower reel according to this jogging speed and driving wheel diameter when jogging speed is at the uniform velocity advanced on the basis of one jogging speed Footpath determines the setting speed of upper and lower reel motor.The fork truck actual displacement rate signal that control system transmits according to detector The rotating speed of upper and lower reel motor is controlled, the retrogressing and advance and the advance of fork plate for making drawstring in fork plate are maintained at astern speed Within one setting range.

There is installation roller in fork plate and roller construction is not installed.

It is fork plate roller construction figure installed above in Figure 13.Roller 33 has single roller and multiple rows of roller construction.It is uneasy The fork plate of dress roller, which is used to pitch, fills object in light weight.It is mounted with that the fork plate of roller is used to pitch and fills heavier object.

Figure 14 is the pallet fork installation diagram with sliding block.Fork plate is fixed on the lower end of sliding block 34.Slideway is provided with hanging block.It is sliding Block 34 is arranged in slideway, can be with oscilaltion.Hanging block upper end is provided with lowering or hoisting gear.Lowering or hoisting gear has various structures, here With motor, screw mandrel, nut structure narration.Lowering or hoisting gear is made up of support 31, motor 30, screw mandrel 29, nut 28.Support 31 is electricity Machine 30 is fixed on hanging block top.Motor lower end connects a screw mandrel 29.Nut 28 is screwed on screw mandrel.Nut is fixed on upper end of slide block Support 31 on.Motor positive and inverse, sliding block are rise and fall, upper reel, lower reel, upper reel motor, lower reel motor with Directive wheel is arranged on sliding block.

Fork plate has the structure with swash plate and without swash plate.

It is fork plate without swash plate structure chart in Figure 15.In Figure 15, swash plate is not provided with front of fork plate, i.e., plane is whole in fork plate Body is straight.Fork loading thing when, fork truck front door frame tilt, make below fork plate front end with the line below protective case front end and ground 35 is parallel.

Sled lift device has a single sled block and double sled block structures, each piece sled block arm of installation in each sliding box both sides in double sled block structures With a sled block.Rotation and sled block the stretching in block arm prize of the sled block arm of sled lift device, useful motor driven and use hydraulic pressure The structure that cylinder drives.

Detector is prior art, has Through Several Survey Measure, does not just describe specifically here.Sliding box has tetragonal and three Square structure, tetragonal are that upper and lower, left and right four direction is all oriented to fork plate.Trigonal crystal structure is that fork plate arranged on left and right sides side is each A prominent slideway, the side of sliding box two have corresponding chute to be buckled on the slideway of fork plate both sides protrusion to be oriented to.Sliding box top, both sides Side tripartite is connected, below into vacancy shape.

Upper and lower reel has installation on the same axis with the structure of a motor driven.Upper drawstring, lower drawstring are respectively connected to one The fixing turn of reverse-winding one each other on individual reel.Motor forward and backward, even if a reel rotates forward retracting drawstring, a reel is anti- Turn, loosen drawstring.

Detector can also be detected in advance before forklift freights thing, i.e., fork truck makes driving before fork freights thing Motor is rotated with setting speed when pitching loading thing, forklift-walking certain distance, that is, detects that fork truck pitches loading principle in simulation Velocity of displacement under condition.Control system pre-adjusts upper and lower reel motor speed according to detection case, and fork is freighted during thing Just no longer it have adjusted temporarily.

Claims (10)

1. automatic synchronization fork truck, including car body, hanging block, pallet fork, reel, drawstring, drawstring, sliding box, motor, detector, sled lift dress Put, control system, it is characterised in that：

（1）, pallet fork is made up of fork plate and drawstring；

（2）, fork plate be fixed on hanging block lower end；

（3）, hanging block be arranged on car body front door frame on；

（4）, sliding box be arranged on fork plate on；

（5）, sled lift device be arranged on sliding box on；

（6）, wheel drive motors are installed on car body；

（7）, reel and upper reel motor, lower reel and lower reel motor are installed on hanging block；

（8）, connect on upper reel and be wound with drawstring, connected on lower reel and be wound with lower drawstring；

（9）, detector is installed on car body；

（10）, drawstring one end be connected with sliding box front end top, the other end is along fork plate front end is moved to above fork plate, around fork plate front end Arc surface, the protective case chamber pierced into below fork plate, be connected with the lower drawstring on lower reel；

（11）, sliding box rear end top be connected with upper drawstring one end, upper drawstring other end head bypasses directive wheel, is connected with upper reel；

（12）, under forklift loading or unloading during goods, control system is simultaneously to the motor, upper reel motor and lower reel of fork truck Electrical power, motor rotating speed is controlled, fork truck is at the uniform velocity advanced or is retreated, detector is according to the actual walking of the fork truck detected Speed controls upper reel motor and lower reel motor to adjust, and makes drawstring retrogressing or the advance of pace and fork plate in fork plate Or astern speed is identical；

（13）, automatic synchronization fork truck include electri forklift and internal combustion engine fork lift；

（14）, have another plus wheel drive motors in internal combustion engine fork lift or be not added with the structure of wheel drive motors；

（15）, pallet fork have the structure with sliding block.

2. automatic synchronization fork truck according to claim 1, it is characterised in that：Separately add wheel drive motors in internal combustion engine fork lift , additionally mounted a motor and clutch in internal combustion engine fork lift, when pitching loading thing, fork truck is driven slowly with motor Walking, motor and upper reel motor, lower reel motor synchronous matching, fork truck are usually used as power walking with internal combustion engine.

3. automatic synchronization fork truck according to claim 1, it is characterised in that：Fork plate has the knot with swash plate and without swash plate Structure.

4. automatic synchronization fork truck according to claim 1, it is characterised in that：Sled lift device has single sled block or double sled agllutinations Structure.

5. automatic synchronization fork truck according to claim 1, it is characterised in that：Roller is installed in fork plate.

6. automatic synchronization fork truck according to claim 1, it is characterised in that：The useful hydraulic pressure of motor or the knot of air pressure substitution Structure.

7. automatic synchronization fork truck according to claim 1, it is characterised in that：Pallet fork with sliding block, fork plate are fixed on sliding block Lower end.

8. automatic synchronization fork truck according to claim 1, it is characterised in that：Pallet fork with sliding block, cunning is provided with hanging block Road, sliding block are arranged in slideway.

9. automatic synchronization fork truck according to claim 1, it is characterised in that：Pallet fork with sliding block, hanging block upper end are provided with Lowering or hoisting gear.

10. automatic synchronization fork truck according to claim 1, it is characterised in that：Upper reel, lower reel have installed in same axle The upper structure with a motor driven.