CN103754798A - Semi-electric self-lifting loading and unloading car - Google Patents
Semi-electric self-lifting loading and unloading car Download PDFInfo
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- CN103754798A CN103754798A CN201410055629.6A CN201410055629A CN103754798A CN 103754798 A CN103754798 A CN 103754798A CN 201410055629 A CN201410055629 A CN 201410055629A CN 103754798 A CN103754798 A CN 103754798A
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Abstract
The invention discloses a semi-electric self-lifting loading and unloading car which comprises a car body, a cargo fork carrier, a hydraulic system and a telescopic trundle frame. The hydraulic system is an electric hydraulic system which is provided with a two-position-four-way reversing solenoid valve, a first oil drainage solenoid valve, a second oil drainage solenoid valve and an oil pump. Two oil outlets of the two-position-four-way reversing solenoid valve are communicated with an upper oil inlet and a lower oil inlet of a double-effect oil cylinder respectively, an oil inlet of the two-position-four-way reversing solenoid valve is communicated with a hydraulic oil tank through a single-way valve and the oil pump, and an oil discharging opening of the two-position-four-way reversing solenoid valve is communicated with the hydraulic oil tank through the first oil drainage solenoid valve. The oil inlet of the two-position-four-way reversing solenoid valve is communicated with the hydraulic oil tank through another oil drainage branch, and the second oil drainage solenoid valve and a throttle valve are arranged in series. Through ingenious arrangement of the solenoid valve hydraulic system, operation such as loading, unloading, car body climbing and car body descending of the whole loading and unloading car can be controlled electrically, the easy degree and labor-saving degree of the operation and working efficiency are greatly improved, and labor intensity is greatly lowered.
Description
Technical field
The present invention relates to a kind of fork truck equipment, relate in particular to a kind of storage stacker handling equipment.
Background technology
Storage class stacker handling equipment is the carrying of a lot of enterprises or stacking small freight common equipment, its low cost, and the feature such as easy and simple to handle, Hen Shou enterprise welcomes.Traditional haulage equipment generally has two kinds, a kind of for entering carrying and while piling high operation, can only by goods from ground handling in eminence platform or compartment, the follow-up manpower of also wanting is stacked goods together, and goods transport is to other places, also need another haulage equipment to carry out transport operation, efficiency is not high, waste of manpower, many haulage equipment costs; When another kind is carried and piles high operation for entering, can only and climb up compartment platform by man power lifting goods and carry out operation, for example name is called the tray forklift of manual self-elevating pallet truck ZL201010617238.0, although disclose and a kind ofly can enter with goods one lifting the manual self-elevating pallet truck of conveying carriage, solved the problem that is completed a series of logistics operations such as handling, compartment are put, transport in place by a tray forklift, but goods lifting relatively, car body lifting, lower degradation operation are all manually to complete, operation is wasted time and energy, inefficiency.
Summary of the invention
Technical matters to be solved by this invention is that a kind of lifting that can realize goods by a set of reasonable electronic, hydraulic efficiency pressure system cleverly will be provided, can climb again in platform or compartment and carry out operation, also can be carried to freight the equipment of strange land transport operation, and loading, unloading, car body climbs and car body declines operation electronic controlling all, greatly improve convenience and work efficiency, also greatly reduced labour intensity.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
Half is electronic from raising a loading-unloading vehicle, comprises car body, goods shelf, hydraulic efficiency pressure system, telescopic leg wheel carrier; Described goods shelf is arranged on car body up and down guiding movement, is arranged at described car body lower end before and after described telescopic leg wheel carrier guiding movement; Described hydraulic efficiency pressure system comprises two-way cylinder, hydraulic reservoir; The cylinder body of described two-way cylinder is fixedly connected with described car body, and the piston rod of described two-way cylinder and described goods shelf are in transmission connection, and by described two-way cylinder, drives described goods shelf or car body lifting or decline; Described hydraulic efficiency pressure system is electro hydraulic system, and described hydraulic efficiency pressure system is also provided with two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump; The cylinder body of described two-way cylinder is provided with lower oil inlet and upper oil inlet, during lower oil inlet oil-feed described in the piston rod of two-way cylinder eject; Two oil outlets of described two-position four-way reversing solenoid valve are communicated with the upper and lower oil inlet of described two-way cylinder respectively, its oil inlet is connected with hydraulic reservoir by check valve and described oil pump, its oil discharge outlet is connected with described hydraulic reservoir by the first described draining electromagnetic valve, and the first described draining electromagnetic valve is bi-bit bi-pass normally closed solenoid valve; The oil inlet of described two-position four-way reversing solenoid valve is also connected with described hydraulic reservoir by another draining branch road, on described electromagnetic valve oil inlet and the draining branch road between hydraulic reservoir, string is provided with the second draining electromagnetic valve and flow regulating valve, and the second described draining electromagnetic valve is bi-bit bi-pass normally closed solenoid valve; The half described electronic loading-unloading vehicle that certainly raises is provided with power supply to described two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump and control loop power supply thereof.
Described control loop is provided with goods shelf button, goods shelf decline button, car body decline button, the car body button that hoists that hoists;
When described goods shelf hoists button or the connection of car body decline button, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the lower oil inlet of described two-way cylinder, and the hydraulic oil of hydraulic reservoir is pressed into the bottom of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the lower oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, the top hydraulic oil of described two-way cylinder enters described hydraulic reservoir through oil discharge outlet and the first draining electromagnetic valve of upper oil inlet, described two-position four-way reversing solenoid valve, and the second described draining electromagnetic valve is in normally off;
When described goods shelf decline button is connected, described oil pump cuts out, described two-position four-way reversing solenoid valve oil inlet is communicated with the lower oil inlet of described two-way cylinder, the first described draining electromagnetic valve and the second draining electromagnetic valve are connected, while being depressed because of the weight of goods shelf and goods along with described piston rod described in the hydraulic oil of hydraulic reservoir through the oil discharge outlet of the first described draining electromagnetic valve, two-position four-way reversing solenoid valve and the upper oil inlet of two-way cylinder, flow into; Oil inlet, the second draining electromagnetic valve and the flow regulating valve of hydraulic oil oil inlet, described two-position four-way reversing solenoid valve under described oil cylinder of two-way cylinder bottom enter described hydraulic reservoir simultaneously;
When described car body hoists button connection, the second described draining electromagnetic valve is in normally off, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the upper oil inlet of described two-way cylinder, and hydraulic oil is pressed into the top of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the upper oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, and the oil discharge outlet of the bottom hydraulic oil of described two-way cylinder oil inlet, described two-position four-way reversing solenoid valve under oil cylinder and the first draining electromagnetic valve enter described hydraulic reservoir.
Described loading-unloading vehicle is preferably also provided with steering hardware, and described steering hardware comprises wheel flutter and operating handle, and described goods shelf button, goods shelf decline button, car body decline button, the car body button that hoists that hoists is arranged on described operating handle.
When moving on level land, described operating handle in pressed status, at the upper plane layout of described operating handle, has goods shelf hoist button and goods shelf decline button; When described loading-unloading vehicle is carrying out the in service of car body lifting or decline, described operating handle is in vertical state, at the lower plane of described operating handle, is provided with car body decline button and the car body button that hoists.
Between described oil pump oil outlet and hydraulic reservoir, be preferably also provided with a safety valve.
Of the present invention half electronic from raising loading-unloading vehicle by electromagnetic valve and oil circuit design cleverly, making to decline, certainly raise in level land goods shelf loading lifting, loading from the loading-unloading vehicle that raises, loading-unloading vehicle car body climbs and the operation of car body decline can complete automation mechanized operation, simultaneously in conjunction with the manual walking on level land and manually moving forward and backward of telescopic leg wheel carrier, thereby completed the semiautomation operation of the handling that certainly raise, convenience and the work efficiency of operation have greatly been improved, working strength also reduces greatly, just less to operative employee's physical fitness requirement.
When we need goods shelf loading lifting on level land, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the lower oil inlet of described two-way cylinder, and the hydraulic oil of hydraulic reservoir is pressed into the bottom of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the lower oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, the top hydraulic oil of described two-way cylinder enters described hydraulic reservoir through oil discharge outlet and the first draining electromagnetic valve of upper oil inlet, described two-position four-way reversing solenoid valve, and the second described draining electromagnetic valve is in normally off.When described two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump control loop are provided with goods shelf and hoist button, press the described goods shelf button that hoists and will carry out aforesaid operations.
When needing goods shelf loading to decline on level land, described oil pump cuts out, described two-position four-way reversing solenoid valve oil inlet is communicated with the lower oil inlet of described two-way cylinder, the first described draining electromagnetic valve and the second draining electromagnetic valve are connected, while being depressed because of the weight of goods shelf and goods along with described piston rod described in the hydraulic oil of hydraulic reservoir through the oil discharge outlet of the first described draining electromagnetic valve, two-position four-way reversing solenoid valve and the upper oil inlet of two-way cylinder, flow into; The hydraulic oil of two-way cylinder bottom enters described hydraulic reservoir through oil inlet, the second draining electromagnetic valve and the flow regulating valve of described two-position four-way reversing solenoid valve simultaneously, thereby controls by the speed of Throttle Valve Control oil return the speed that goods shelf falls.When described two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump control loop are provided with goods shelf decline button, press described goods shelf decline button and will carry out aforesaid operations.
When half electronic after the loading-unloading vehicle loading that raises, arrive lorry limit goods shelf be put on boxcar after, while needing lifting car body, the second described draining electromagnetic valve is for normally off, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the upper oil inlet of described two-way cylinder, and hydraulic oil is pressed into the top of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the upper oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, and the bottom hydraulic oil of described two-way cylinder enters described hydraulic reservoir through oil discharge outlet and the first draining electromagnetic valve of lower oil inlet, described two-position four-way reversing solenoid valve.Before rising, car body needs described telescopic leg wheel carrier to be drawn back to car body rear end so that car body can be lifted on compartment smoothly, after car body lifting, more described telescopic leg wheel carrier is inserted into car body front end so that loading-unloading vehicle can be walked smoothly, after loading-unloading vehicle completes and climbs, need to according to the operating sequence of above-mentioned goods shelf loading lifting by the goods shelf road wheel that slightly up one section of lifting makes to be inserted into the telescopic leg wheel carrier in the place ahead contact with carriage plane, goods shelf soars, loading-unloading vehicle can have been walked freely.When being provided with car body, described two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump control loop hoist button and goods shelf while hoisting button, press the described car body button that hoists and will carry out car body lifting operation, on car body compartment be plugged telescopic leg wheel carrier before backward, press goods shelf again and hoist button by goods shelf lifting one segment distance, then loading-unloading vehicle can freely be walked.
When half electronic when the loading-unloading vehicle that raises needs under loading compartment, arrive behind lorry limit, after the operation declining according to goods shelf loading is put on boxcar by goods shelf, according to the operating sequence of above-mentioned car body lifting, with goods shelf, support and make the telescopic leg wheel carrier that is inserted in car body front end slightly leave carriage plane again, then described telescopic leg wheel carrier is drawn back so that described car body can successfully drop to ground from compartment to described car body rear end.During car body step-down operation, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the lower oil inlet of described two-way cylinder, and the hydraulic oil of hydraulic reservoir is pressed into the bottom of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the lower oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, the top hydraulic oil of described two-way cylinder enters described hydraulic reservoir through oil discharge outlet and the first draining electromagnetic valve of upper oil inlet, described two-position four-way reversing solenoid valve, and the second described draining electromagnetic valve is in normally off.When described two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump control loop are provided with goods shelf decline button, car body decline button and car body and hoist button, pressing goods shelf decline button falls to contacting with carriage plane by carrying out above-mentioned goods shelf, press described car body and hoist button by the operation of carrying out described goods shelf and supporting car body and described telescopic leg wheel carrier is left slightly to carriage plane, press lower body decline button and complete car body and from compartment, drop to the operation on ground.
The loading of whole loading-unloading vehicle, unloading, car body climb and car body under degradation operation by the setting of electromagnetic valve hydraulic efficiency pressure system cleverly, the easy degree of its operation, laborsaving degree and work efficiency have all obtained promoting greatly.
Simultaneously; above-mentioned goods shelf button, goods shelf decline button, car body decline button, car body also goods shelf can be hoisted button and the car body decline button of the setting of button that hoist that hoist unites two into one; because the state of its electromagnetic valve and oil circuit is all consistent during two push-botton operations; so so long as by electromagnetic valve setting of the present invention and oil circuit, arrange that structure completes the work of sub-rising loading-unloading vehicle all belong to protection scope of the present invention, and control button in its control loop can be done variation routinely on the basis of above-mentioned set-up mode.
Further, loading-unloading vehicle is also provided with steering hardware, goods shelf button, goods shelf decline button, car body decline button, the car body button that hoists that hoists is set on its operating handle and is more conducive to operations.And according to described operating handle the difference at the residing state in service of level land operation car body lifting or decline, we are provided with corresponding button at upper plane and the lower plane of operating handle respectively, have so both facilitated operation also to avoid to greatest extent the possibility of maloperation.
More excellent, between described oil pump oil outlet and hydraulic reservoir, be also provided with a safety valve.On safety valve, set a safe threshold values, like this when the oil pressure of described oil pump output is too high, in the time of may directly affecting the safe handling of oil circuit below and the components and parts of working, described safety valve will be opened automatically, fuel-displaced directly the letting out of the part of oil pump oil outlet got back in hydraulic reservoir, within the oil pressure of guaranteeing follow-up working oil path remains on safe range.
Accompanying drawing explanation
For allowing feature of the present invention and advantage more become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Fig. 1 is that the present invention half is electronic from raising loading-unloading vehicle structural representation;
Fig. 2 is that the present invention half is electronic from raising loading-unloading vehicle operating handle assembly structure schematic diagram;
Fig. 3 a, 3b, 3c are that the present invention half is electronic from raising loading-unloading vehicle hydraulic work system schematic diagram
In figure:
1, car body 2, goods shelf 3, telescopic leg wheel carrier
4, oil inlet on oil inlet 42, oil cylinder under two-way cylinder 41, oil cylinder
5, hydraulic reservoir 6, two-position four-way reversing solenoid valve 7, the first draining electromagnetic valve
8, the second draining electromagnetic valve 9, oil pump 10, check valve
11, hoist button 13, goods shelf decline button of flow regulating valve 12, goods shelf
14, hoist button 16, wheel flutter of car body decline button 15, car body
17, operating handle 18, safety valve
The specific embodiment
Fig. 1 shows a kind of half electronic loading-unloading vehicle that certainly raises, and comprises car body 1, goods shelf 2, hydraulic efficiency pressure system, telescopic leg wheel carrier 3; Described goods shelf 2 is arranged on car body 1 up and down guiding movement, is arranged at described car body 1 lower end described telescopic leg wheel carrier 3 front and back guiding movements; Described hydraulic efficiency pressure system comprises two-way cylinder 4, hydraulic reservoir 5; The cylinder body of described two-way cylinder 4 is fixedly connected with described car body 1, and the piston rod of described two-way cylinder 4 and described goods shelf 2 are in transmission connection, and by described two-way cylinder 4, drives described goods shelf 2 or car body 1 lifting or decline; Described hydraulic efficiency pressure system is electro hydraulic system, and described hydraulic efficiency pressure system is provided with two-position four-way reversing solenoid valve 6, the first draining electromagnetic valve 7, the second draining electromagnetic 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, during lower oil inlet 41 oil-feed described in the piston rod of two-way cylinder 4 eject; Two oil outlet A, B of described two-position four-way reversing solenoid valve 6 are communicated with the upper and lower oil inlet 41,42 of described two-way cylinder respectively, its oil inlet P is connected with hydraulic reservoir 5 by check valve 10 and described oil pump 9, its oil discharge outlet T is connected with described hydraulic reservoir 5 by the first described draining electromagnetic valve 7, and the first described draining electromagnetic valve 7 is bi-bit bi-pass normally closed solenoid valve; The oil inlet P of described two-position four-way reversing solenoid valve 6 is also connected with described hydraulic reservoir 5 by another draining branch road, on described electromagnetic valve oil inlet P and the draining branch road between hydraulic reservoir 5, string is provided with the second draining electromagnetic valve 8 and flow regulating valve 11, and the second described draining electromagnetic valve 8 is bi-bit bi-pass normally closed solenoid valve; The half described electronic loading-unloading vehicle that certainly raises is provided with power supply to described two-position four-way reversing solenoid valve 6, the first draining electromagnetic valve 7, the second draining electromagnetic valve 8 and oil pump 9 and control loop power supply thereof.Described control loop is provided with goods shelf button 12, goods shelf decline button 13, car body decline button 14, the car body button 15 that hoists that hoists;
When described goods shelf hoists button 12 or 14 connection of car body decline button, as shown in Figure 3 a, described oil pump 9 starts, the oil inlet P of described two-position four-way reversing solenoid valve 6 is communicated with the lower oil inlet 41 of described two-way cylinder 4, and the hydraulic oil of hydraulic reservoir 5 is pressed into the bottom of described two-way cylinder 4 through the oil inlet P of described oil pump 9, check valve 10, two-position four-way reversing solenoid valve 6 and the lower oil inlet 41 of described two-way cylinder 4; The first described draining electromagnetic valve 7 is connected, the top hydraulic oil of described two-way cylinder 4 enters described hydraulic reservoir 5 through oil discharge outlet T and the first draining electromagnetic valve 7 of upper oil inlet 42, described two-position four-way reversing solenoid valve 6, and the second described draining electromagnetism 8 valves are in normally off;
When described goods shelf decline button 13 is connected, as shown in Figure 3 b, described oil pump 9 cuts out, described two-position four-way reversing solenoid valve 6 oil inlet P are communicated with the lower oil inlet 41 of described two-way cylinder 4, the first described draining electromagnetic valve 7 and the second draining electromagnetic valve 8 are connected, while being depressed because of the weight of goods shelf 2 and goods along with described piston rod described in the hydraulic oil of hydraulic reservoir 5 through the first described draining electromagnetic valve 7, the oil discharge outlet T of two-position four-way reversing solenoid valve 6 and the upper oil inlet of two-way cylinder 4 42, flow into; Oil inlet P, the second draining electromagnetic valve 8 and the flow regulating valve 11 of hydraulic oil oil inlet 41, described two-position four-way reversing solenoid valve 6 under described oil cylinder of two-way cylinder 4 bottoms enter described hydraulic reservoir 5 simultaneously;
When described car body hoists button 15 connection, as shown in Figure 3 c, the second described draining electromagnetic valve 8 is for normally off, described oil pump 9 starts, the oil inlet P of described two-position four-way reversing solenoid valve 6 is communicated with the upper oil inlet 42 of described two-way cylinder 4, and hydraulic oil is pressed into the top of described two-way cylinder 4 through the oil inlet P of described oil pump 9, check valve 10, two-position four-way reversing solenoid valve 5 and the upper oil inlet 42 of described two-way cylinder 4; The first described draining electromagnetic valve 7 is connected, and the oil discharge outlet T of the bottom hydraulic oil of described two-way cylinder 4 oil inlet 41, described two-position four-way reversing solenoid valve 6 under oil cylinder and the first draining electromagnetic valve 7 enter described hydraulic reservoir 5.
Described loading-unloading vehicle is provided with steering hardware, steering hardware is fixedly installed on described car body 1, described steering hardware comprises wheel flutter 16 and operating handle 17, and described goods shelf button 12, goods shelf decline button 13, car body decline button 14, the car body button 15 that hoists that hoists is arranged on described operating handle 17.When described operating handle 17 moves on level land in pressed status, therefore at the upper plane layout of described operating handle 17, have goods shelf hoist button 12 and goods shelf decline button 13 so that the loading unloading operation of described loading-unloading vehicle while moving on level land; When described loading-unloading vehicle is carrying out the in service of car body lifting or decline, described operating handle 17 is in vertical state, therefore be provided with car body decline button 14 and the car body button 15 that hoists at the lower plane of described operating handle 17, so that operate lifting and the decline of car body when packing up operating handle 17.
Certainly, because a variety of causes and design also can not arrange above-mentioned steering hardware on loading-unloading vehicle, or the operating handle 17 of pulling up and down is not set, same described goods shelf button 12, goods shelf decline button 13, car body decline button 14, the car body button 15 that hoists that hoists can be arranged on the operating handle of other conventionally form or be arranged on other position of car body of loading-unloading vehicle, as long as operator can successfully operate; When we hoist button 15 while being arranged at other position by hoist button 12, goods shelf decline button 13, car body decline button 14, car body of described goods shelf, hoist button 12 and car body decline button 14 of described goods shelf also can unite two into one and make a button.Above-mentioned control loop and button setting can substitute with other conventionally form, and key is ingenious improvement that we do from the oil channel structures of loading-unloading vehicle goods shelf oil hydraulic system of raising S. A. and the ingenious setting of electromagnetic valve.
Described steering hardware comprises wheel flutter 16 and operating handle 17,
Between described oil pump 9 oil outlets and hydraulic reservoir 5, be also provided with a safety valve 18.The setting of safety valve 18 be operating oil pressure in order to ensure operating oil pressure pipeline within certain restriction, can certainly limit by other usual manner the oil pressure of working oil path, be for example provided with the oil pump of insurance pressure limiting, overvoltage is with regard to break-off etc.
Hydraulic circuit structure based on above-mentioned and the setting of electromagnetic valve, operator can easily, successfully carry out lifting and the decline after the goods shelf loading of level land, as long as press simply respectively hoist button 12 and goods shelf decline button 13 of goods shelf, both can.And when half electronic arrival after the loading-unloading vehicle loading that raises while after lorry limit is put on boxcar by goods shelf 2 needing car body 1 lifting to climb up car compartment, need first to press the motor vehicles bodies button 15 lifting car bodies 1 that hoist, on car body 1 compartment be plugged telescopic leg wheel carrier 3 before backward, press goods shelf again and hoist button 12 by goods shelf lifting one segment distance, then loading-unloading vehicle can freely be walked.
When half electronic when the loading-unloading vehicle that raises needs under loading compartment, press described goods shelf decline button 13, described goods shelf 2 is dropped to carriage plane and contacted, press again the described car body button 15 that hoists, make described telescopic leg wheel carrier 3 slightly leave carriage plane, then draw back telescopic leg wheel carrier 3, then press lower body decline button 14 and complete car body 1 and from compartment, drop to the operation on ground, then just can move loading-unloading vehicle neatly by routine operation.
Certainly, wherein, as long as can control the action of the corresponding electromagnetic valve of above-mentioned button and oil pump 9, control loop and button can be done accommodation.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection domain with claim.
Claims (5)
1. half is electronic from raising a loading-unloading vehicle, comprises car body, goods shelf, hydraulic efficiency pressure system, telescopic leg wheel carrier; Described goods shelf is arranged on car body up and down guiding movement, is arranged at described car body lower end before and after described telescopic leg wheel carrier guiding movement; Described hydraulic efficiency pressure system comprises two-way cylinder, hydraulic reservoir; The cylinder body of described two-way cylinder is fixedly connected with described car body, and the piston rod of described two-way cylinder and described goods shelf are in transmission connection, and by described two-way cylinder, drives described goods shelf or car body lifting or decline; It is characterized in that: described hydraulic efficiency pressure system is electro hydraulic system, described hydraulic efficiency pressure system is also provided with two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump; The cylinder body of described two-way cylinder is provided with lower oil inlet and upper oil inlet, during lower oil inlet oil-feed described in the piston rod of two-way cylinder eject; Two oil outlets of described two-position four-way reversing solenoid valve are communicated with the upper and lower oil inlet of described two-way cylinder respectively, its oil inlet is connected with hydraulic reservoir by check valve and described oil pump, its oil discharge outlet is connected with described hydraulic reservoir by the first described draining electromagnetic valve, and the first described draining electromagnetic valve is bi-bit bi-pass normally closed solenoid valve; The oil inlet of described two-position four-way reversing solenoid valve is also connected with described hydraulic reservoir by another draining branch road, on described electromagnetic valve oil inlet and the draining branch road between hydraulic reservoir, string is provided with the second draining electromagnetic valve and flow regulating valve, and the second described draining electromagnetic valve is bi-bit bi-pass normally closed solenoid valve; The half described electronic loading-unloading vehicle that certainly raises is provided with power supply to described two-position four-way reversing solenoid valve, the first draining electromagnetic valve, the second draining electromagnetic valve and oil pump and control loop power supply thereof.
2. according to claim 1 half electronic from the loading-unloading vehicle that raises, it is characterized in that: described control loop is provided with goods shelf button, goods shelf decline button, car body decline button, the car body button that hoists that hoists;
When described goods shelf hoists button or the connection of car body decline button, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the lower oil inlet of described two-way cylinder, and the hydraulic oil of hydraulic reservoir is pressed into the bottom of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the lower oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, the top hydraulic oil of described two-way cylinder enters described hydraulic reservoir through oil discharge outlet and the first draining electromagnetic valve of upper oil inlet, described two-position four-way reversing solenoid valve, and the second described draining electromagnetic valve is in normally off;
When described goods shelf decline button is connected, described oil pump cuts out, described two-position four-way reversing solenoid valve oil inlet is communicated with the lower oil inlet of described two-way cylinder, the first described draining electromagnetic valve and the second draining electromagnetic valve are connected, while being depressed because of the weight of goods shelf and goods along with described piston rod described in the hydraulic oil of hydraulic reservoir through the oil discharge outlet of the first described draining electromagnetic valve, two-position four-way reversing solenoid valve and the upper oil inlet of two-way cylinder, flow into; Oil inlet, the second draining electromagnetic valve and the flow regulating valve of hydraulic oil oil inlet, described two-position four-way reversing solenoid valve under described oil cylinder of two-way cylinder bottom enter described hydraulic reservoir simultaneously;
When described car body hoists button connection, the second described draining electromagnetic valve is for normally off, described pump start, the oil inlet of described two-position four-way reversing solenoid valve is communicated with the upper oil inlet of described two-way cylinder, and hydraulic oil is pressed into the top of described two-way cylinder through the oil inlet of described oil pump, check valve, two-position four-way reversing solenoid valve and the upper oil inlet of described two-way cylinder; The first described draining electromagnetic valve is connected, and the oil discharge outlet of the bottom hydraulic oil of described two-way cylinder oil inlet, described two-position four-way reversing solenoid valve under oil cylinder and the first draining electromagnetic valve enter described hydraulic reservoir.
3. according to claim 2 half electronic from the loading-unloading vehicle that raises, it is characterized in that: described loading-unloading vehicle is also provided with steering hardware, described steering hardware comprises wheel flutter and operating handle, and described goods shelf button, goods shelf decline button, car body decline button, the car body button that hoists that hoists is arranged on described operating handle.
4. according to claim 3 half electronic from the loading-unloading vehicle that raises, it is characterized in that: when described operating handle moves on level land, in pressed status, at the upper plane layout of described operating handle, have goods shelf hoist button and goods shelf decline button; When described loading-unloading vehicle is carrying out the in service of car body lifting or decline, described operating handle is in vertical state, at the lower plane of described operating handle, is provided with car body decline button and the car body button that hoists.
5. according to the half electronic loading-unloading vehicle that certainly raises described in claim 1,2,3 or 4, it is characterized in that: between described oil pump oil outlet and hydraulic reservoir, be also provided with a safety valve.
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| CN201410055629.6A CN103754798B (en) | 2014-02-19 | 2014-02-19 | A kind of semi-electric self-lifting loading and unloading car |
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| CN201410055629.6A CN103754798B (en) | 2014-02-19 | 2014-02-19 | A kind of semi-electric self-lifting loading and unloading car |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105712254A (en) * | 2014-12-05 | 2016-06-29 | 林德（中国）叉车有限公司 | Rapid cargo forking device of forklift |
| 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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| US4050248A (en) * | 1975-09-17 | 1977-09-27 | O & K Orenstein & Koppel Aktiengesellschaft | Control device for hydrostatic drive, especially for fork lift truck |
| JPS5929801A (en) * | 1982-08-10 | 1984-02-17 | Japan Steel Works Ltd:The | Hydraulic controller |
| JPS6426002A (en) * | 1987-07-03 | 1989-01-27 | Heilmeier & Weinlein | Hydraulic type controller |
| CN102030286A (en) * | 2010-12-27 | 2011-04-27 | 上海梯佑国际贸易有限公司 | Manual self-elevating pallet truck |
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| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 | Publication date |
|---|---|
| CN103754798B (en) | 2017-06-20 |
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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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