CN103754798B - A kind of semi-electric self-lifting loading and unloading car - Google Patents
A kind of semi-electric self-lifting loading and unloading car Download PDFInfo
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- CN103754798B CN103754798B CN201410055629.6A CN201410055629A CN103754798B CN 103754798 B CN103754798 B CN 103754798B CN 201410055629 A CN201410055629 A CN 201410055629A CN 103754798 B CN103754798 B CN 103754798B
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Abstract
The invention discloses a kind of semi-electric self-lifting loading and unloading car, including car body, goods shelf, hydraulic system, telescopic leg wheel carrier；Hydraulic system is electro-hydraulic system, is provided with two-position four-way reversing solenoid valve, the first draining magnetic valve, the second draining magnetic valve and oil pump；Two oil-outs of two-position four-way reversing solenoid valve are connected with the upper and lower oil inlet of two-way cylinder respectively, and its oil inlet is connected by check valve and oil pump with hydraulic oil container, and its oil discharge outlet is connected by the first draining magnetic valve with hydraulic oil container；The oil inlet of two-position four-way reversing solenoid valve is also connected by another draining branch road with the hydraulic oil container, and string is provided with the second draining magnetic valve and choke valve.So climb to decline etc. with car body by the loading of the whole loading-unloading vehicle of setting of cleverly magnetic valve hydraulic system, unloading, car body and operate and electronic can manipulate, easy degree, laborsaving degree and the operating efficiency that it is operated are obtained for and are greatly lifted, and labour intensity is substantially reduced.
Description
Technical field
The present invention relates to a kind of fork truck equipment, more particularly to a kind of storage stacker handling equipment.
Background technology
Storage class stacker handling equipment is that many enterprises carry or stacking small freight common equipment, its low cost, operation
Easy the features such as, welcome by enterprise very much.Traditional haulage equipment is general two kinds, one kind be into carrying and during heap operation high,
Can only by goods from ground handling to eminence platform or compartment in, subsequently also want manpower to stack together goods, and cargo transport
Arrive elsewhere, in addition it is also necessary to which another haulage equipment carries out transport operation, inefficient, waste of manpower, one more haulage equipment
Cost；Another kind is that into carrying and during heap operation high, by man power lifting goods and can only climb up compartment platform and carry out operation,
The for example tray forklift of entitled manual self-elevating pallet truck ZL201010617238.0, although disclosing one kind can be with goods
One lifting enters the manual self-elevating pallet truck of conveying carriage, solves and completes handling, compartment pendulum by a tray forklift
Put, a series of problem of logistics operations such as place is transported, but the operation such as relative goods lifting, car body lifting, decline is all hand
Dynamic to complete, operation is wasted time and energy, inefficiency.
The content of the invention
The technical problems to be solved by the invention be to provide for it is a kind of by a set of reasonable cleverly electronic, hydraulic system both
The lifting of goods can be realized, can climb again carries out operation in platform or compartment, also can be carried to strange land and carry with freight and make
The equipment of industry, and loading, unloading, car body climb and car body decline all electronic manipulation of operation, substantially increase convenience and
Operating efficiency, also significantly reduces labour intensity.
In order to solve the above technical problems, technical scheme is as follows：
A kind of semi-electric self-lifting loading and unloading car, including car body, goods shelf, hydraulic system, telescopic leg wheel carrier；Described pallet fork
Frame can be arranged on car body guiding movement up and down, and described car body is arranged at before and after described telescopic leg wheel carrier guiding movement
Lower end；Described hydraulic system includes two-way cylinder, hydraulic oil container；The cylinder body of the two-way cylinder is solid with described car body
Fixed connection, the piston rod of the two-way cylinder and described goods shelf drive connection, are driven by described two-way cylinder
Move described goods shelf or car body lifting or decline；Described hydraulic system is electro-hydraulic system, and the hydraulic system also sets
It is equipped with two-position four-way reversing solenoid valve, the first draining magnetic valve, the second draining magnetic valve and oil pump；Described two-way cylinder
Cylinder body is provided with lower oil inlet and upper oil inlet, the piston rod ejection of two-way cylinder during lower oil inlet oil-feed；Described two
Two oil-outs of position four-way reversing solenoid valve are connected with the upper and lower oil inlet of the two-way cylinder respectively, and its oil inlet leads to
Cross check valve and described oil pump be connected with hydraulic oil container, its oil discharge outlet by the first described draining magnetic valve with it is described
Hydraulic oil container is connected, and the first described draining magnetic valve is bi-bit bi-pass normally closed solenoid valve；The two-position four-way commutation electromagnetism
The oil inlet of valve is also connected by another draining branch road with the hydraulic oil container, in described magnetic valve oil inlet and hydraulic oil
String is provided with the second draining magnetic valve and choke valve on draining branch road between case, and the second described draining magnetic valve is bi-bit bi-pass
Normally closed solenoid valve；Described semi-electric self-lifting loading and unloading car is provided with power supply to described two-position four-way reversing solenoid valve, first
Draining magnetic valve, the second draining magnetic valve and oil pump and its control loop are powered.
The control loop is provided with goods shelf raising button, goods shelf and declines button, car body decline button, car body raising
Button；
When described goods shelf raising button or car body decline button to be connected, described pump start, described two four
The oil inlet of logical reversing solenoid valve is connected with the lower oil inlet of the two-way cylinder, and the hydraulic oil of hydraulic oil container is through described oil
The lower oil inlet of pump, check valve, the oil inlet of two-position four-way reversing solenoid valve and the two-way cylinder is pressed into the double acting
The bottom of oil cylinder；Described the first draining magnetic valve is connected, and the top hydraulic oil of the two-way cylinder is through upper oil inlet, described
The oil discharge outlet of two-position four-way reversing solenoid valve and the first draining magnetic valve enter described hydraulic oil container, described the second draining electricity
Magnet valve is in normally off；
When described goods shelf declines button to be connected, described oil pump is closed, and the two-position four-way reversing solenoid valve enters
Hydraulic fluid port is connected with the lower oil inlet of the two-way cylinder, and the first described draining magnetic valve and the second draining magnetic valve are connected,
With the piston rod because the weight of goods shelf and goods is depressed when the hydraulic oil container hydraulic oil let out through described first
The upper oil inlet of solenoid, the oil discharge outlet of two-position four-way reversing solenoid valve and two-way cylinder is flowed into；While two-way cylinder
The hydraulic oil of bottom is through oil inlet, the oil inlet of the two-position four-way reversing solenoid valve, the second draining magnetic valve under the oil cylinder
Described hydraulic oil container is entered with choke valve；
When described car body raising button is connected, the second described draining magnetic valve is in normally off, described oil
Pump startup, the described oil inlet of two-position four-way reversing solenoid valve is connected with the upper oil inlet of described two-way cylinder, hydraulic pressure
The upper oil inlet pressure of the described oil pump of oil warp, check valve, the oil inlet of two-position four-way reversing solenoid valve and the two-way cylinder
Enter the top of the two-way cylinder；The first described draining magnetic valve is connected, the lower hydraulic oil warp of the two-way cylinder
Oil inlet, the oil discharge outlet of the two-position four-way reversing solenoid valve and the first draining magnetic valve enter described hydraulic oil under oil cylinder
Case.
Described loading-unloading vehicle is preferably additionally provided with steering mechanism, and described steering mechanism includes deflecting roller and operation handle,
Described goods shelf raising button, goods shelf decline button, car body and decline button, car body raising button and be arranged at described operation
On handle.
Described operation handle is in pressed status when level land is run, and sets in stockit is available in the upper plane of the operation handle
Crotch raising button and goods shelf decline button；It is described when described loading-unloading vehicle is in the operation of car body lifting or decline is carried out
Operation handle be in vertical state, be provided with car body and decline button and car body raising in the lower plane of described operation handle and press
Button.
A safety valve is preferably additionally provided between described oil pump oil-out and hydraulic oil container.
Semi-electric self-lifting loading and unloading car of the invention is designed by cleverly magnetic valve and oil circuit so that from rising loading-unloading vehicle
Decline in level land goods shelf loading lifting, loading, from raise loading-unloading vehicle car body climb the operation that declines with car body can complete from
Dynamicization is operated, moving forward and backward manually for the manual walking and telescopic leg wheel carrier in combination with level land, is filled from rising so as to complete
The semiautomation operation unloaded, substantially increases the convenience and operating efficiency of operation, and working strength is greatly reduced, to operative employee
Physical fitness requirement it is just smaller.
When we need goods shelf loading lifting on level land, described pump start, the two-position four-way commutation electromagnetism
The oil inlet of valve is connected with the lower oil inlet of the two-way cylinder, the hydraulic oil of hydraulic oil container through described oil pump, check valve,
The lower oil inlet of the oil inlet of two-position four-way reversing solenoid valve and the two-way cylinder is pressed into the bottom of the two-way cylinder；
The first described draining magnetic valve is connected, and the top hydraulic oil of the two-way cylinder is changed through upper oil inlet, the two-position four-way
Described hydraulic oil container is entered to the oil discharge outlet and the first draining magnetic valve of magnetic valve, the second described draining magnetic valve is in normal
Closed state.When described two-position four-way reversing solenoid valve, the first draining magnetic valve, the second draining magnetic valve and oil pump control are returned
When road is provided with goods shelf raising button, pressing the goods shelf raising button will perform aforesaid operations.
When needing goods shelf loading to decline on level land, described oil pump is closed, and the two-position four-way reversing solenoid valve enters
Hydraulic fluid port is connected with the lower oil inlet of the two-way cylinder, and the first described draining magnetic valve and the second draining magnetic valve are connected,
With the piston rod because the weight of goods shelf and goods is depressed when the hydraulic oil container hydraulic oil let out through described first
The upper oil inlet of solenoid, the oil discharge outlet of two-position four-way reversing solenoid valve and two-way cylinder is flowed into；While two-way cylinder
The hydraulic oil of bottom enters described through the oil inlet of the two-position four-way reversing solenoid valve, the second draining magnetic valve and choke valve
Hydraulic oil container, by the speed of throttle valve control oil return so as to the speed for controlling goods shelf to fall.When described two-position four-way commutates
When magnetic valve, the first draining magnetic valve, the second draining magnetic valve and oil pump control loop are provided with goods shelf decline button, press
The goods shelf declines button will perform aforesaid operations.
Reached after semi-electric self-lifting loading and unloading car loading after be put into goods shelf on boxcar by lorry side, it is necessary to lifting
During car body, the second described draining magnetic valve is for normally off, described pump start, described two-position four-way commutation electromagnetism
The oil inlet of valve is connected with the upper oil inlet of described two-way cylinder, and hydraulic oil is through described oil pump, check valve, two-position four-way
The upper oil inlet of the oil inlet of reversing solenoid valve and the two-way cylinder is pressed into the top of the two-way cylinder；Described
One draining magnetic valve is connected, and the lower hydraulic oil of the two-way cylinder is through lower oil inlet, the two-position four-way reversing solenoid valve
Oil discharge outlet and the first draining magnetic valve enter described hydraulic oil container.Needed described telescopic leg wheel carrier before car body rising
Drawn back to body rear end to enable that car body is smoothly lifted on compartment, be again inserted into described telescopic leg wheel carrier after car body lifting
Car body front end to enable that loading-unloading vehicle is smoothly walked, loading-unloading vehicle complete climb after, it is necessary to according to above-mentioned goods shelf loading lifting
Operation sequence by goods shelf, up one section of lifting causes that the road wheel of the telescopic leg wheel carrier for being inserted into front is put down with compartment slightly
Face contact, goods shelf soar, then loading-unloading vehicle can freely walk.When described two-position four-way reversing solenoid valve, first let out
When solenoid, the second draining magnetic valve and oil pump control loop are provided with car body raising button and goods shelf raising button, press
Under the car body raising button will perform car body lifting operation, be plugged telescopic leg wheel carrier before compartment is backward on car body, then press
Goods shelf raising button can freely walk the segment distance of goods shelf lifting one, then loading-unloading vehicle.
When semi-electric self-lifting loading and unloading car needs compartment under loading, after reaching lorry side, decline according to goods shelf loading
Operation goods shelf is put on boxcar after, according still further to above-mentioned car body lifting operation sequence with goods shelf support cause insert
Telescopic leg wheel carrier in car body front end leaves carriage plane slightly, then by described telescopic leg wheel carrier to described body rear end
Draw back to enable that described car body successfully drops to ground from compartment.During car body step-down operation, described pump start, institute
State the oil inlet of two-position four-way reversing solenoid valve to be connected with the lower oil inlet of the two-way cylinder, the hydraulic oil warp of hydraulic oil container
The lower oil inlet press-in institute of described oil pump, check valve, the oil inlet of two-position four-way reversing solenoid valve and the two-way cylinder
State the bottom of two-way cylinder；The first described draining magnetic valve is connected, and the top hydraulic oil of the two-way cylinder is through enterprising
Hydraulic fluid port, the oil discharge outlet of the two-position four-way reversing solenoid valve and the first draining magnetic valve enter described hydraulic oil container, described
Second draining magnetic valve is in normally off.When described two-position four-way reversing solenoid valve, the first draining magnetic valve, the second draining
When magnetic valve and oil pump control loop are provided with goods shelf and decline button, car body and decline button and car body raising button, by unloading goods
Descending of fork button falls to being contacted with carriage plane by above-mentioned goods shelf is performed, and pressing the car body raising button will perform institute
The goods shelf stated supports car body and described telescopic leg wheel carrier is left into the operation of carriage plane slightly, and presses lower body decline
Button then completes the operation that car body falls earthward under compartment.
The loading of whole loading-unloading vehicle, unloading, car body are climbed and the operation such as decline with car body and pass through cleverly magnetic valve hydraulic pressure system
The setting of system, easy degree, laborsaving degree and the operating efficiency that it is operated is obtained for and is greatly lifted.
Meanwhile, above-mentioned goods shelf raising button, goods shelf decline button, car body and decline button, car body raising button
Setting can also decline goods shelf raising button and car body button and unite two into one because during two push-botton operations its magnetic valve and
The state of oil circuit is all consistent, as long as so set with oil circuit setting structure to complete sub- liter by magnetic valve of the invention
What loading-unloading vehicle high worked belongs to protection scope of the present invention, and the control button in its control loop can be in above-mentioned setting side
Make change routinely on the basis of formula.
Further, loading-unloading vehicle is additionally provided with steering mechanism, and goods shelf raising button, pallet fork are set in its operation handle
Frame declines button, car body decline button, car body raising button and is more beneficial for operations.And according to described operation handle flat
Ground operation car body lifting or decline operation in state in which difference, we respectively operation handle upper plane and under
Plane is provided with corresponding button, had so both facilitated operation or had avoided the possibility of maloperation to greatest extent.
More excellent, a safety valve is additionally provided between described oil pump oil-out and hydraulic oil container.Set on safety valve
A fixed secure threshold, so when the oil pressure that described oil pump is exported is too high, may directly affect oil circuit below and work unit
During the safe handling of device, described safety valve will be automatically opened up, and directly leak back into liquid by the part of oil pump oil-out is fuel-displaced
In force feed case, it is ensured that the oil pressure of follow-up working oil path is maintained within safe range.
Brief description of the drawings
It is to make the features of the present invention and advantage more obvious understandable, below in conjunction with the accompanying drawings to specific embodiment of the invention
Elaborate.
Fig. 1 is semi-electric self-lifting loading and unloading car structural representation of the present invention；
Fig. 2 is semi-electric self-lifting loading and unloading car operation handle assembly structure schematic diagram of the present invention；
Fig. 3 a, 3b, 3c are semi-electric self-lifting loading and unloading car hydraulic work system schematic diagram of the present invention
In figure：
1st, car body 2, goods shelf 3, telescopic leg wheel carrier
4th, oil inlet on oil inlet 42, oil cylinder under two-way cylinder 41, oil cylinder
5th, hydraulic oil container 6, two-position four-way reversing solenoid valve 7, the first draining magnetic valve
8th, the second draining magnetic valve 9, oil pump 10, check valve
11st, choke valve 12, goods shelf raising button 13, goods shelf decline button
14th, car body declines button 15, car body raising button 16, deflecting roller
17th, operation handle 18, safety valve
Specific embodiment
Fig. 1 shows a kind of semi-electric self-lifting loading and unloading car, including car body 1, goods shelf 2, hydraulic system, telescopic leg wheel carrier
3；Described goods shelf 2 can be arranged on car body 1 guiding movement up and down, guiding movement ground before and after described telescopic leg wheel carrier 3
It is arranged at the described lower end of car body 1；Described hydraulic system includes two-way cylinder 4, hydraulic oil container 5；The two-way cylinder 4
Cylinder body be fixedly connected with described car body 1, the piston rod of the two-way cylinder 4 and described goods shelf 2 are connected, lead to
Described two-way cylinder 4 is crossed to drive described goods shelf 2 or the lifting of car body 1 or decline；Described hydraulic system is electronic
Hydraulic system, the hydraulic system is provided with two-position four-way reversing solenoid valve 6, the first draining magnetic valve 7, the second draining magnetic valve
8 and oil pump 9；The cylinder body of described two-way cylinder 4 is provided with lower oil inlet 41 and upper oil inlet 42,41 oil-feed of lower oil inlet when institute
State the piston rod ejection of two-way cylinder 4；Two oil-outs A, B of described two-position four-way reversing solenoid valve 6 respectively with it is described
The upper and lower oil inlet 41,42 of two-way cylinder is connected, and its oil inlet P passes through check valve 10 and described oil pump 9 and hydraulic oil container
5 are connected, and its oil discharge outlet T is connected by the first described draining magnetic valve 7 with described hydraulic oil container 5, and described first
Draining magnetic valve 7 is bi-bit bi-pass normally closed solenoid valve；The oil inlet P of the two-position four-way reversing solenoid valve 6 is also let out by another
Oily branch road is connected with the hydraulic oil container 5, on the draining branch road between described magnetic valve oil inlet P and hydraulic oil container 5
String is provided with the second draining magnetic valve 8 and choke valve 11, and the second described draining magnetic valve 8 is bi-bit bi-pass normally closed solenoid valve；Institute
The semi-electric self-lifting loading and unloading car stated be provided with power supply to described two-position four-way reversing solenoid valve 6, the first draining magnetic valve 7,
Second draining magnetic valve 8 and oil pump 9 and its control loop are powered.The control loop is provided with goods shelf raising button 12, goods
Descending of fork button 13, car body declines button 14, car body raising button 15；
When described goods shelf raising button 12 or car body decline button 14 to be connected, as shown in Figure 3 a, described oil pump 9
Start, the oil inlet P of the two-position four-way reversing solenoid valve 6 is connected with the lower oil inlet 41 of the two-way cylinder 4, hydraulic oil
The hydraulic oil of case 5 is through described oil pump 9, check valve 10, the oil inlet P of two-position four-way reversing solenoid valve 6 and the double acting oil
The lower oil inlet 41 of cylinder 4 is pressed into the bottom of the two-way cylinder 4；The first described draining magnetic valve 7 is connected, the double acting
The top hydraulic oil of oil cylinder 4 is through upper oil inlet 42, the oil discharge outlet T of the two-position four-way reversing solenoid valve 6 and the first draining electromagnetism
Valve 7 enters described hydraulic oil container 5, and the described valve of the second draining electromagnetism 8 is in normally off；
When described goods shelf declines button 13 to be connected, as shown in Figure 3 b, described oil pump 9 is closed, described two four
The logical oil inlet P of reversing solenoid valve 6 is connected with the lower oil inlet 41 of the two-way cylinder 4, the described He of the first draining magnetic valve 7
Second draining magnetic valve 8 is connected, with the piston rod because the weight of goods shelf 2 and goods is depressed when the hydraulic oil container 5
Hydraulic oil through the upper of the first described draining magnetic valve 7, the oil discharge outlet T of two-position four-way reversing solenoid valve 6 and two-way cylinder 4
Oil inlet 42 is flowed into；The hydraulic oil of the bottom of two-way cylinder 4 commutates through oil inlet 41, the two-position four-way under the oil cylinder simultaneously
The oil inlet P of magnetic valve 6, the second draining magnetic valve 8 and choke valve 11 enter described hydraulic oil container 5；
When described car body raising button 15 is connected, as shown in Figure 3 c, the second described draining magnetic valve 8 is for normally closed
State, described oil pump 9 starts, the oil inlet P and described two-way cylinder 4 of described two-position four-way reversing solenoid valve 6
Upper oil inlet 42 is connected, and hydraulic oil is through described oil pump 9, check valve 10, the oil inlet P of two-position four-way reversing solenoid valve 5 and institute
The upper oil inlet 42 for stating two-way cylinder 4 is pressed into the top of the two-way cylinder 4；The first described draining magnetic valve 7 is connected,
The lower hydraulic oil of the two-way cylinder 4 is through oil inlet under oil cylinder 41, the oil discharge outlet T of the two-position four-way reversing solenoid valve 6
Described hydraulic oil container 5 is entered with the first draining magnetic valve 7.
Described loading-unloading vehicle is provided with steering mechanism, and steering mechanism is fixedly installed on the car body 1, described steering machine
Structure includes deflecting roller 16 and operation handle 17, and described goods shelf raising button 12, goods shelf declines the decline of button 13, car body and presses
Button 14, car body raising button 15 are arranged in described operation handle 17.Described operation handle 17 is in when level land is run
Pressed status, therefore the upper plane in the operation handle 17 is provided with goods shelf raising button 12 and goods shelf declines button 13,
Loading unloading operation when being run on level land in order to the loading-unloading vehicle；When described loading-unloading vehicle carry out car body lifting or under
In the operation of drop, described operation handle 17 is in vertical state, therefore the lower plane in described operation handle 17 is provided with car
Body decline button 14 and car body raising button 15, in order to when operation handle 17 are packed up operate car body lifting and under
Drop.
Certainly, because a variety of causes and design can also be not provided with above-mentioned steering mechanism on loading-unloading vehicle, or do not set
The operation handle 17 pulled up and down is put, same described goods shelf raising button 12, goods shelf declines button 13, car body and declines
Button 14, car body raising button 15 can be arranged in the operation handle of other conventionally forms or be arranged on the car body of loading-unloading vehicle
Other positions, as long as operator can successfully operate；When we are by under described goods shelf raising button 12, goods shelf
When drop button 13, car body decline button 14, car body raising button 15 are arranged at other positions, described goods shelf raising button 12
Can also be united two into one with car body decline button 14 and make a button.Above-mentioned control loop and button set and can use other
Conventionally form substitute, it is critical only that we do from the oil channel structures for raising loading-unloading vehicle goods shelf oil hydraulic system to semi-automatic
Ingenious improvement and the ingenious setting of magnetic valve.
Described steering mechanism includes deflecting roller 16 and operation handle 17,
A safety valve 18 is additionally provided between the described oil-out of oil pump 9 and hydraulic oil container 5.The setting of safety valve 18 is
In order to ensure the operating oil pressure of operating oil pressure pipeline is within certain limitation, naturally it is also possible to by other usual manners come
The oil pressure of working oil path is limited, the oil pump of insurance pressure limiting is for example provided with, overvoltage is with regard to break-off etc..
Based on the setting of above-mentioned hydraulic circuit structure and magnetic valve, operator can easily, be smoothly performed level land goods
Lifting and decline after crotch loading, as long as simply pressing goods shelf raising button 12 and goods shelf decline button 13 respectively both
Can.And to work as reach after semi-electric self-lifting loading and unloading car loading after be put into goods shelf 2 on boxcar by lorry side and need car body 1
When car compartment is climbed up in lifting, then need first to press the lifting car body 1 of motor vehicles bodies raising button 15, be plugged before compartment is backward on car body 1
Telescopic leg wheel carrier 3, then goods shelf raising button 12 is pressed by the segment distance of goods shelf lifting one, then loading-unloading vehicle can free walker
Walk.
When semi-electric self-lifting loading and unloading car needs compartment under loading, press described goods shelf and decline button 13, by institute
To state fall under goods shelf 2 and be in contact with carriage plane, then press the car body raising button 15 so that described telescopic leg wheel carrier
3 leave carriage plane slightly, then draw back telescopic leg wheel carrier 3, then press lower body decline button 14 complete car body 1 under compartment
The operation for falling earthward, then just can neatly run loading-unloading vehicle by routine operation.
Certainly, as long as wherein the action of the magnetic valve and oil pump 9 corresponding to above-mentioned button, control loop and button can be controlled
Accommodation can be done.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (4)
1. a kind of semi-electric self-lifting loading and unloading car, including car body, goods shelf, hydraulic system, telescopic leg wheel carrier；Described goods shelf
Can be arranged on car body up and down guiding movement, be arranged at before and after described telescopic leg wheel carrier under described car body guiding movement
End；Described hydraulic system includes two-way cylinder, hydraulic oil container；The cylinder body of the two-way cylinder is fixed with described car body
Connection, the piston rod of the two-way cylinder and described goods shelf drive connection, are driven by described two-way cylinder
Described goods shelf or car body lifting or decline；It is characterized in that：Described hydraulic system is electro-hydraulic system, the hydraulic pressure
System is additionally provided with two-position four-way reversing solenoid valve, the first draining magnetic valve, the second draining magnetic valve and oil pump；Described double cropping
Lower oil inlet and upper oil inlet are provided with the cylinder body of oil cylinder, the piston rod ejection of two-way cylinder during lower oil inlet oil-feed；
Two oil-outs of described two-position four-way reversing solenoid valve are connected with the upper and lower oil inlet of the two-way cylinder respectively, its
Oil inlet is connected by check valve and described oil pump with hydraulic oil container, and its oil discharge outlet is by the first described draining magnetic valve
It is connected with described hydraulic oil container, the first described draining magnetic valve is bi-bit bi-pass normally closed solenoid valve；The two-position four-way
The oil inlet of reversing solenoid valve is also connected by another draining branch road with the hydraulic oil container, in described magnetic valve oil inlet
String is provided with the second draining magnetic valve and choke valve on draining branch road and hydraulic oil container between, and the second described draining magnetic valve is
Bi-bit bi-pass normally closed solenoid valve；Described semi-electric self-lifting loading and unloading car is provided with power supply to described two-position four-way commutation electromagnetism
Valve, the first draining magnetic valve, the second draining magnetic valve and oil pump and its control loop are powered；The control loop is provided with pallet fork
Erect a liter button, goods shelf and decline button, car body decline button, car body raising button；
When described goods shelf raising button or car body decline button to be connected, described pump start, the two-position four-way is changed
Connected with the lower oil inlet of the two-way cylinder to the oil inlet of magnetic valve, the hydraulic oil of hydraulic oil container through described oil pump,
The lower oil inlet of check valve, the oil inlet of two-position four-way reversing solenoid valve and the two-way cylinder is pressed into the two-way cylinder
Bottom；Described the first draining magnetic valve is connected, the top hydraulic oil of the two-way cylinder through upper oil inlet, described two
The oil discharge outlet of four-way reversing solenoid valve and the first draining magnetic valve enter described hydraulic oil container, the second described draining magnetic valve
In normally off；
When described goods shelf declines button to be connected, described oil pump is closed, the two-position four-way reversing solenoid valve oil inlet
Connected with the lower oil inlet of the two-way cylinder, the first described draining magnetic valve and the second draining magnetic valve are connected, with
The piston rod is because the hydraulic oil of the hydraulic oil container when weight of goods shelf and goods is depressed is through described the first draining electricity
The upper oil inlet of magnet valve, the oil discharge outlet of two-position four-way reversing solenoid valve and two-way cylinder is flowed into；While two-way cylinder bottom
Hydraulic oil through oil inlet, the oil inlet of the two-position four-way reversing solenoid valve, the second draining magnetic valve and section under the oil cylinder
Stream valve enters described hydraulic oil container；
When described car body raising button is connected, for normally off, described oil pump is opened the second described draining magnetic valve
Dynamic, the described oil inlet of two-position four-way reversing solenoid valve is connected with the upper oil inlet of described two-way cylinder, hydraulic oil warp
The upper oil inlet press-in institute of described oil pump, check valve, the oil inlet of two-position four-way reversing solenoid valve and the two-way cylinder
State the top of two-way cylinder；The first described draining magnetic valve is connected, and the lower hydraulic oil of the two-way cylinder is through oil cylinder
Lower oil inlet, the oil discharge outlet of the two-position four-way reversing solenoid valve and the first draining magnetic valve enter described hydraulic oil container.
2. semi-electric self-lifting loading and unloading car according to claim 1, it is characterised in that：Described loading-unloading vehicle is additionally provided with and turns
To mechanism, described steering mechanism includes deflecting roller and operation handle, and described goods shelf raising button, goods shelf decline to be pressed
Button, car body decline button, car body raising button and are arranged in described operation handle.
3. semi-electric self-lifting loading and unloading car according to claim 2, it is characterised in that：Described operation handle is transported on level land
Pressed status are in during row, the upper plane of the operation handle are provided with goods shelf raising button and goods shelf is declined button；
When described loading-unloading vehicle is in the operation of car body lifting or decline is carried out, described operation handle is in vertical state, described
Operation handle lower plane be provided with car body decline button and car body raising button.
4. the semi-electric self-lifting loading and unloading car according to claim 1,2 or 3, it is characterised in that：It is fuel-displaced in described oil pump
A safety valve is additionally provided between mouth and hydraulic oil container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055629.6A CN103754798B (en) | 2014-02-19 | 2014-02-19 | A kind of semi-electric self-lifting loading and unloading car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055629.6A CN103754798B (en) | 2014-02-19 | 2014-02-19 | A kind of semi-electric self-lifting loading and unloading car |
Publications (2)
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| CN103754798B true CN103754798B (en) | 2017-06-20 |
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| CN105712254A (en) * | 2014-12-05 | 2016-06-29 | 林德（中国）叉车有限公司 | Rapid cargo forking device of forklift |
| CN105645324A (en) * | 2016-04-18 | 2016-06-08 | 湖南五新隧道智能装备股份有限公司 | Cantilever crane motion hydraulic system and tunnel lagging jack operating vehicle |
| CN107337157A (en) * | 2017-08-16 | 2017-11-10 | 慈溪市雀思德电子科技有限公司 | Electrocar walking jacking system |
| CN107473135A (en) * | 2017-10-17 | 2017-12-15 | 广东亚克迪智能物流科技有限公司 | A kind of semi-automatic self-carry forklift |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2541398A1 (en) * | 1975-09-17 | 1977-03-31 | Orenstein & Koppel Ag | CONTROL DEVICE FOR A HYDROSTATIC TRAVEL DRIVE, IN PARTICULAR FOR FORKLIFT TRUCKS |
| JPS5929801A (en) * | 1982-08-10 | 1984-02-17 | Japan Steel Works Ltd:The | Hydraulic controller |
| DE3722083C1 (en) * | 1987-07-03 | 1988-09-15 | Heilmeier & Weinlein | Hydraulic control device |
| CN102030286B (en) * | 2010-12-27 | 2014-07-02 | 上海梯佑国际贸易有限公司 | Manual self-elevating pallet truck |
| CN202968031U (en) * | 2012-11-21 | 2013-06-05 | 浙江诺力机械股份有限公司 | Hydraulic control system used for industrial vehicle lifting device |
| CN203715188U (en) * | 2014-02-19 | 2014-07-16 | 上海梯佑叉车有限公司 | Semi-electric self-ascending loading and unloading vehicle |
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Effective date of registration: 20190220 Address after: Floor 2, Building 15, 183 Yinshan Road, Pudong New Area, Shanghai, 2003 Patentee after: Shanghai sea Capital International Trading Co., Ltd. Address before: Room 116, Building 399, Zhangtangcun, Zhuanghang Town, Fengxian District, Shanghai, 201415 Patentee before: SHANGHAI T&U FORKLIFT TRUCK CO., LTD. |
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