CN203922490U - Low-cost single pump double loop hydraulic control system - Google Patents
Low-cost single pump double loop hydraulic control system Download PDFInfo
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- CN203922490U CN203922490U CN201420281640.XU CN201420281640U CN203922490U CN 203922490 U CN203922490 U CN 203922490U CN 201420281640 U CN201420281640 U CN 201420281640U CN 203922490 U CN203922490 U CN 203922490U
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Abstract
The utility model is a kind of low-cost single pump double loop hydraulic control system, comprise Hydraulic Pump, governor valve piece, front loop wheel machine multiple directional control valve, rear loop wheel machine multiple directional control valve and balance cock, hydraulic lock, hydraulic control component and actuating unit hydraulic actuating cylinder form a kind of single pump double loop hydraulic control system; In native system, Hydraulic Pump is as the propulsion source of native system, for front loop wheel machine multiple directional control valve and rear loop wheel machine multiple directional control valve provide pressure oil; Governor valve piece leads to the flow of forward and backward loop wheel machine multiple directional control valve in order to control, and then controls the kinematic velocity of forward and backward loop wheel machine actuating unit; Balance cock and hydraulic lock power element are for guaranteeing stability and the safety of front loop wheel machine multiple directional control valve and the motion of rear loop wheel machine multiple directional control valve.
Description
Technical field
The utility model relates to a kind of low-cost single pump double loop hydraulic control system.
Background technology
Container lateral stevedoring crane is a kind of by front, rear loop wheel machine is individually fixed in superimposed trailer rear and front end or rear and front end, general-utility car chassis, for Stuff (to) being carried out to the power jacking device of side handling and short-distance transport, consider the concrete mode of operation of container lateral stevedoring crane, in order to guarantee that container safety pulsation-free loads and unloads, before side stevedoring crane, rear loop wheel machine needs coordination, existing container lateral stevedoring crane hydraulic control system, it is all the operating feature according to car load, before, rear loop wheel machine multiple directional control valve great majority adopt High Performance ratio control cock, overall cost is higher, be difficult in market popularization and application.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of low-cost single pump double loop hydraulic control system, guarantee forward and backward loop wheel machine respective execution mechanisms synchronization action, and solve forward and backward loop wheel machine multiple directional control valve and all adopt electric hydraulic control High Performance ratio valve to cause originally higher problem of system synthesis.
To achieve these goals, the utility model is achieved through the following technical solutions: a kind of low-cost single pump double loop hydraulic control system, comprises Hydraulic Pump, governor valve piece, by pass valve, unloading electromagnetic valve, front loop wheel machine governor valve, rear loop wheel machine governor valve, multiple directional control valve, front loop wheel machine multiple directional control valve, rear loop wheel machine multiple directional control valve, front loop wheel machine slippage oil cylinder is controlled connection, front loop wheel machine supporting leg amplitude oil cylinder is controlled connection, front loop wheel machine landing leg stretching oil cylinder is controlled connection, front loop wheel machine underarm oil cylinder is controlled connection, front loop wheel machine upper arm oil cylinder is controlled connection, the auxiliary support oil cylinder of front loop wheel machine is controlled connection, rear loop wheel machine slippage oil cylinder is controlled connection, rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection, rear loop wheel machine landing leg stretching oil cylinder is controlled connection, rear loop wheel machine underarm oil cylinder is controlled connection, rear loop wheel machine upper arm oil cylinder is controlled connection, the auxiliary support oil cylinder of rear loop wheel machine is controlled connection, bidirectional hydraulic lock, front loop wheel machine slippage oil cylinder bidirectional hydraulic lock, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, front loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, rear loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock, Bidirectional balanced valve, front loop wheel machine underarm oil cylinder Bidirectional balanced valve, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve, one-way balance valve, front loop wheel machine upper arm one-way balance valve, rear loop wheel machine upper arm one-way balance valve, actuating unit, front loop wheel machine slippage oil cylinder, front loop wheel machine supporting leg amplitude oil cylinder, front loop wheel machine landing leg stretching oil cylinder, front loop wheel machine underarm amplitude oil cylinder, front loop wheel machine upper arm amplitude oil cylinder, front loop wheel machine is assisted support oil cylinder, rear loop wheel machine slippage oil cylinder, rear loop wheel machine supporting leg amplitude oil cylinder, rear loop wheel machine landing leg stretching oil cylinder, rear loop wheel machine underarm amplitude oil cylinder, rear loop wheel machine upper arm amplitude oil cylinder, rear loop wheel machine is assisted support oil cylinder, return filter and hydraulic reservoir, the oil suction of Hydraulic Pump is connected with hydraulic reservoir, the oil outlet of Hydraulic Pump is connected with the oil inlet P of governor valve piece, the oil outlet A of governor valve piece is connected with front loop wheel machine multiple directional control valve oil inlet P, and the oil return inlet T of front loop wheel machine multiple directional control valve is connected with the oil inlet of return filter, front loop wheel machine slippage oil cylinder is controlled connection, front loop wheel machine supporting leg amplitude oil cylinder is controlled connection, front loop wheel machine landing leg stretching oil cylinder is controlled connection, front loop wheel machine underarm oil cylinder is controlled connection, front loop wheel machine upper arm oil cylinder is controlled connection and the auxiliary support oil cylinder of front loop wheel machine and is controlled and join respectively and front loop wheel machine slippage oil cylinder bidirectional hydraulic lock, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, front loop wheel machine underarm oil cylinder Bidirectional balanced valve, front loop wheel machine upper arm one-way balance valve is connected with the auxiliary support oil cylinder bidirectional hydraulic lock of front loop wheel machine.
Described front loop wheel machine slippage oil cylinder bidirectional hydraulic lock, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, the auxiliary support oil cylinder bidirectional hydraulic lock of front loop wheel machine, front loop wheel machine underarm oil cylinder Bidirectional balanced valve, front loop wheel machine upper arm one-way balance valve, front loop wheel machine slippage oil cylinder, front loop wheel machine supporting leg amplitude oil cylinder, front loop wheel machine landing leg stretching oil cylinder, front loop wheel machine underarm amplitude oil cylinder, front loop wheel machine upper arm amplitude oil cylinder, the auxiliary support oil cylinder of front loop wheel machine; The oil outlet B of governor valve piece is connected with rear loop wheel machine multiple directional control valve oil inlet P; The oil return inlet T of rear loop wheel machine multiple directional control valve is connected with the oil inlet of return filter.
Described rear loop wheel machine slippage oil cylinder is controlled connection, rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection, rear loop wheel machine landing leg stretching oil cylinder is controlled connection, rear loop wheel machine underarm oil cylinder is controlled connection, rear loop wheel machine upper arm oil cylinder is controlled connection, the auxiliary support oil cylinder of rear loop wheel machine control connection respectively with rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve, rear loop wheel machine upper arm one-way balance valve, the auxiliary support oil cylinder bidirectional hydraulic lock of rear loop wheel machine is connected, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, the auxiliary support oil cylinder bidirectional hydraulic lock of rear loop wheel machine, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve, rear loop wheel machine upper arm one-way balance valve, be connected respectively at rear loop wheel machine slippage oil cylinder, rear loop wheel machine supporting leg amplitude oil cylinder, rear loop wheel machine landing leg stretching oil cylinder, rear loop wheel machine underarm amplitude oil cylinder, rear loop wheel machine upper arm amplitude oil cylinder, the auxiliary support oil cylinder of rear loop wheel machine, the oil return inlet T of governor valve piece is connected with hydraulic reservoir, the oil outlet of return filter is connected with hydraulic reservoir.
The beneficial effects of the utility model are: because native system adopts single pump double loop hydraulic control system, Hydraulic Pump is single displacement pump, and multiple directional control valve is switching value control cock, and the pressure oil of Hydraulic Pump output flows to forward and backward loop wheel machine simultaneously; Between Hydraulic Pump and front and back loop wheel machine multiple directional control valve, increase governor valve piece, by this valve piece can convection current forwards, backwards the flow of loop wheel machine control, at front and back loop wheel machine, occur when asynchronous, can regulating one of them governor valve, thereby before and after guaranteeing, loop wheel machine is synchronous; In order to reduce system cost, governor valve piece can be manual governing, if need to carry out Remote speed governing, the governor valve plug-in unit of governor valve piece inside can be changed, if need convection current forwards, backwards loop wheel machine flow regulate more accurately, also can change governor valve plug-in unit and be replaced by the plug-in unit that meets electric ratio adjusting, system synthesis originally also adopts electro-hydraulic proportional valve well below front and back loop wheel machine multiple directional control valve.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
In figure: 1, Hydraulic Pump, 2, governor valve piece, 2-1, by pass valve, 2-2, unloading electromagnetic valve, 2-3, front loop wheel machine governor valve, 2-4, rear loop wheel machine governor valve, 3, multiple directional control valve, 3-1, front loop wheel machine multiple directional control valve, 3-2, rear loop wheel machine multiple directional control valve, 3-1-1, front loop wheel machine slippage oil cylinder is controlled connection, 3-1-2, front loop wheel machine supporting leg amplitude oil cylinder is controlled connection, 3-1-3, front loop wheel machine landing leg stretching oil cylinder is controlled connection, 3-1-4, front loop wheel machine underarm oil cylinder is controlled connection, 3-1-5, front loop wheel machine upper arm oil cylinder is controlled connection, 3-1-6, the auxiliary support oil cylinder of front loop wheel machine is controlled connection, 3-2-1, rear loop wheel machine slippage oil cylinder is controlled connection, 3-2-2, rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection, 3-2-3, rear loop wheel machine landing leg stretching oil cylinder is controlled connection, 3-2-4, rear loop wheel machine underarm oil cylinder is controlled connection, 3-2-5, rear loop wheel machine upper arm oil cylinder is controlled connection, 3-2-6, the auxiliary support oil cylinder of rear loop wheel machine is controlled connection, 4, bidirectional hydraulic lock, 4-1, front loop wheel machine slippage oil cylinder bidirectional hydraulic lock, 4-2, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, 4-3, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, 4-4, front loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock, 4-5, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock, 4-6, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock, 4-7, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock, 4-8, rear loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock, 5, Bidirectional balanced valve, 5-1, front loop wheel machine underarm oil cylinder Bidirectional balanced valve, 5-2, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve, 6, one-way balance valve, 6-1, front loop wheel machine upper arm one-way balance valve, 6-2, rear loop wheel machine upper arm one-way balance valve, 7, actuating unit, 7-1, front loop wheel machine slippage oil cylinder, 7-2, front loop wheel machine supporting leg amplitude oil cylinder, 7-3, front loop wheel machine landing leg stretching oil cylinder, 7-4, front loop wheel machine underarm amplitude oil cylinder, 7-5, front loop wheel machine upper arm amplitude oil cylinder, 7-6, front loop wheel machine is assisted support oil cylinder, 7-7, rear loop wheel machine slippage oil cylinder, 7-8, rear loop wheel machine supporting leg amplitude oil cylinder, 7-9, rear loop wheel machine landing leg stretching oil cylinder, 7-10, rear loop wheel machine underarm amplitude oil cylinder, 7-11, rear loop wheel machine upper arm amplitude oil cylinder, 7-12, rear loop wheel machine is assisted support oil cylinder, 8, for return filter, 9, hydraulic reservoir.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this low-cost single pump double loop hydraulic control system, comprises Hydraulic Pump 1, governor valve piece 2, by pass valve 2-1, unloading electromagnetic valve 2-2, front loop wheel machine governor valve 2-3, rear loop wheel machine governor valve 2-4, multiple directional control valve 3, front loop wheel machine multiple directional control valve 3-1, rear loop wheel machine multiple directional control valve 3-2, front loop wheel machine slippage oil cylinder is controlled connection 3-1-1, front loop wheel machine supporting leg amplitude oil cylinder is controlled connection 3-1-2, front loop wheel machine landing leg stretching oil cylinder is controlled connection 3-1-3, front loop wheel machine underarm oil cylinder is controlled connection 3-1-4, front loop wheel machine upper arm oil cylinder is controlled connection 3-1-5, the auxiliary support oil cylinder of front loop wheel machine is controlled connection 3-1-6, rear loop wheel machine slippage oil cylinder is controlled connection 3-2-1, rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection 3-2-2, rear loop wheel machine landing leg stretching oil cylinder is controlled connection 3-2-3, rear loop wheel machine underarm oil cylinder is controlled connection 3-2-4, rear loop wheel machine upper arm oil cylinder is controlled connection 3-2-5, the auxiliary support oil cylinder of rear loop wheel machine is controlled connection 3-2-6, bidirectional hydraulic lock 4, front loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-1, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-2, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-3, front loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock 4-4, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-5, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-6, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-7, rear loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock 4-8, Bidirectional balanced valve 5, front loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-1, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-2, one-way balance valve 6, front loop wheel machine upper arm one-way balance valve 6-1, rear loop wheel machine upper arm one-way balance valve 6-2, actuating unit 7, front loop wheel machine slippage oil cylinder 7-1, front loop wheel machine supporting leg amplitude oil cylinder 7-2, front loop wheel machine landing leg stretching oil cylinder 7-3, front loop wheel machine underarm amplitude oil cylinder 7-4, front loop wheel machine upper arm amplitude oil cylinder 7-5, front loop wheel machine is assisted support oil cylinder 7-6, rear loop wheel machine slippage oil cylinder 7-7, rear loop wheel machine supporting leg amplitude oil cylinder 7-8, rear loop wheel machine landing leg stretching oil cylinder 7-9, rear loop wheel machine underarm amplitude oil cylinder 7-10, rear loop wheel machine upper arm amplitude oil cylinder 7-11, rear loop wheel machine is assisted support oil cylinder 7-12, return filter 8 and hydraulic reservoir 9, the oil suction of Hydraulic Pump 1 is connected with hydraulic reservoir 9, the oil outlet of Hydraulic Pump 1 is connected with the oil inlet P of governor valve piece 2, the oil outlet A of governor valve piece 2 is connected with front loop wheel machine multiple directional control valve 3-1 oil inlet P, and the oil return inlet T of front loop wheel machine multiple directional control valve 3-1 is connected with the oil inlet of return filter 8, front loop wheel machine slippage oil cylinder is controlled connection 3-1-1, front loop wheel machine supporting leg amplitude oil cylinder is controlled connection 3-1-2, front loop wheel machine landing leg stretching oil cylinder is controlled connection 3-1-3, front loop wheel machine underarm oil cylinder is controlled connection 3-1-4, front loop wheel machine upper arm oil cylinder control connection 3-1-5 and the auxiliary support oil cylinder of front loop wheel machine control connection 3-1-6 respectively with front loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-1, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-2, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-3, front loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-1, front loop wheel machine upper arm one-way balance valve 6-1 is connected with the auxiliary support oil cylinder bidirectional hydraulic lock 4-4 of front loop wheel machine, front loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-1, front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-2, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-3, the auxiliary support oil cylinder bidirectional hydraulic lock 4-4 of front loop wheel machine, front loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-1, front loop wheel machine upper arm one-way balance valve 6-1, front loop wheel machine slippage oil cylinder 7-1, front loop wheel machine supporting leg amplitude oil cylinder 7-2, front loop wheel machine landing leg stretching oil cylinder 7-3, front loop wheel machine underarm amplitude oil cylinder 7-4, front loop wheel machine upper arm amplitude oil cylinder 7-5, the auxiliary support oil cylinder 7-6 of front loop wheel machine, the oil outlet B of governor valve piece 2 is connected with rear loop wheel machine multiple directional control valve 3-2 oil inlet P, the oil return inlet T of rear loop wheel machine multiple directional control valve 3-2 is connected with the oil inlet of return filter 8, rear loop wheel machine slippage oil cylinder is controlled connection 3-2-1, rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection 3-2-2, rear loop wheel machine landing leg stretching oil cylinder is controlled connection 3-2-3, rear loop wheel machine underarm oil cylinder is controlled connection 3-2-4, rear loop wheel machine upper arm oil cylinder is controlled connection 3-2-5, the auxiliary support oil cylinder of rear loop wheel machine control connection 3-2-6 respectively with rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-5, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-6, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-7, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-2, rear loop wheel machine upper arm one-way balance valve 6-2, the auxiliary support oil cylinder bidirectional hydraulic lock 4-8 of rear loop wheel machine is connected, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-5, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-6, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-7, the auxiliary support oil cylinder bidirectional hydraulic lock 4-8 of rear loop wheel machine, rear loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-2, rear loop wheel machine upper arm one-way balance valve 6-2, be connected respectively at rear loop wheel machine slippage oil cylinder 7-7, rear loop wheel machine supporting leg amplitude oil cylinder 7-8, rear loop wheel machine landing leg stretching oil cylinder 7-9, rear loop wheel machine underarm amplitude oil cylinder 7-10, rear loop wheel machine upper arm amplitude oil cylinder 7-11, the auxiliary support oil cylinder 7-12 of rear loop wheel machine, the oil return inlet T of governor valve piece 2 is connected with hydraulic reservoir 9, the oil outlet of return filter 8 is connected with hydraulic reservoir 9.
Described Hydraulic Pump 1 is single displacement pump, is responsible for providing hydraulic oil to forward and backward loop wheel machine, and single displacement pump has that discharge capacity is large, cost is low, volume is little, be convenient to the features such as installation, meets the demand that forward and backward loop wheel machine is synchronized with the movement to flow.
In native system, governor valve piece 2 is comprised of by pass valve 2-1, unloading electromagnetic valve 2-2, front loop wheel machine governor valve 2-3 and rear loop wheel machine governor valve 2-4, and by pass valve 2-1 is for determining system maximum working pressure (MWP), and anti-locking system overload work, guarantees the safety of car load operation, unloading electromagnetic valve 2-2 has two mode of operations, for car load is carried out, safety is anxious stops, during car load operation, unloading electromagnetic valve 2-2 obtains electric, the hydraulic oil of Hydraulic Pump 1 output flows to respectively front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2, during unloading electromagnetic valve 2-2 dead electricity, the hydraulic oil of Hydraulic Pump 1 output can directly flow back to hydraulic reservoir 9 by unloading electromagnetic valve 2-2, therefore, under emergency, unloading electromagnetic valve 2-2 can carry out off-load to Hydraulic Pump 1, make the hydraulic oil of Hydraulic Pump 1 output all flow back to hydraulic reservoir 9, guarantee the safety of car load operation, because governor valve piece 2 is installed near hydraulic reservoir 9, can realize the off-load nearby to Hydraulic Pump 1, reduce degradation of energy, front loop wheel machine governor valve 2-3 and rear loop wheel machine governor valve 2-4 are for controlling the flow that flows to front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2, guarantee forward and backward loop wheel machine synchronization job, make up the defect that Full Vehicle System adopts independent switching value multiple directional control valve to control flow.If need Remote speed governing, only need to change front loop wheel machine governor valve 2-3 and the rear loop wheel machine governor valve 2-4 plug-in unit of governor valve piece 2 inside, just can realize the convection current accurate adjusting of loop wheel machine flow forwards, backwards.
In native system, multiple directional control valve 3 is electric pilot-controlled switch control valve, total cost is lower, meet remote operation, and each work connection all retains handle, this multiple directional control valve 3 coordinate governor valves 2 together convection current loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 actuating unit flow are controlled forward, before car load operation, guarantee that governor valve 2 internal electromagnetic unloader valve 2-2 obtain electric, the opening amount that the governor valve 2-3 of front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 and governor valve 2-4 are adjusted to respectively to equal size, now, two governor valves 2 allow the flow passing through to equate, before the multiway valve change-over valve 3 work interlocks of front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 are done, the hydraulic oil of Hydraulic Pump 1 output flows to multiway valve change-over valve 3 by governor valve 2 inner front loop wheel machine governor valve 2-3 and rear loop wheel machine governor valve 2-4 respectively, through multiple directional control valve 3 meta T mouths, flows back to oil, during car load operation, obtain electric to respectively front loop wheel machine multiple directional control valve 3-1 multiple directional control valve 3 work connection electromagnet corresponding to rear loop wheel machine multiple directional control valve 3-2, the commutation of driving work connection main valve plug, hydraulic oil from governor valve 2 flows to the actuating unit of front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 by multiple directional control valve 3 work connection, drive forward and backward loop wheel machine machine actuating unit action, thereby realize car load operation, in operation process, if there is asynchrony phenomenon in forward and backward loop wheel machine machine actuating unit, now can manual regulation governor valve 2 in the governor valve 2 of front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 guarantee synchronously.
In native system, forward and backward loop wheel machine actuating unit arranges respectively front loop wheel machine slippage oil cylinder 7-1 and rear loop wheel machine slippage oil cylinder 7-7, and according to the freight container of different specification size, forward and backward loop wheel machine regulates loop wheel machine spacing to lift by this oil cylinder; On front loop wheel machine slippage oil cylinder 7-1 and rear loop wheel machine slippage oil cylinder 7-7, front loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-1 and rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-5 are housed respectively, front loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-1 and rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-5 can carry out locking to front loop wheel machine slippage oil cylinder 7-1 and rear loop wheel machine slippage oil cylinder 7-7 in the process of car load walking, prevent because forward and backward hoisting crane self inertia appears at the forward and backward movement on direction of travel, increase the safety of hoisting crane, improve popularity and safety that car load uses.
When side stevedoring crane carries out loading and unloading operation, the pressure oil of Hydraulic Pump 1 output through loop wheel machine multiple directional control valve 3-1 before governor valve piece 2 flows to and after loop wheel machine multiple directional control valve 3-2, again by being arranged on bidirectional hydraulic lock 4, Bidirectional balanced valve 5 and the one-way balance valve 6 on each actuating unit, remove to control a certain epitrochoidal chamber of forward and backward two hoisting cranes actuating unit 7 separately, the fluid of another epitrochoidal chamber of actuating unit 7 carries out oil return through multiple directional control valve 3 again, last hydraulic oil flows back to hydraulic reservoir 9 through return filter 8, realizes system oil-way circulation.
In this side loading and unloading operation vehicle control, front loop wheel machine supporting leg amplitude oil cylinder 7-2, rear loop wheel machine supporting leg amplitude oil cylinder 7-8, front loop wheel machine landing leg stretching oil cylinder 7-3, rear loop wheel machine landing leg stretching oil cylinder 7-9, loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-2 before installing respectively above the auxiliary support oil cylinder 7-12 of the auxiliary support oil cylinder 7-6 of front loop wheel machine and rear loop wheel machine, front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-3, front loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock 4-4, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock 4-5, rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock 4-6, rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock 4-7 and rear loop wheel machine are assisted support oil cylinder bidirectional hydraulic lock 4-8, bidirectional hydraulic lock 4 is mainly used to front, in rear loop wheel machine operation process, actuating unit 7 is carried out to effective locking, while preventing from connecting the tube failure between multiway valve 3 and actuating unit 7, cause oil cylinder retraction, improve the safety of car load operation, front loop wheel machine underarm amplitude oil cylinder 7-4 and rear loop wheel machine underarm amplitude oil cylinder 7-10 be fixing front loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-1 and rear loop wheel machine underarm oil cylinder Bidirectional balanced valve 5-2 respectively, Bidirectional balanced valve 5 is mainly used in underarm cylinder movement to stablize control, can also when the pipeline inefficacy connecting between Bidirectional balanced valve 5 and multiple directional control valve 3, to amplitude oil cylinder, carry out locking, improve the safety of car load operation, front loop wheel machine upper arm amplitude oil cylinder 7-5, rear loop wheel machine upper arm amplitude oil cylinder 7-11 be fixing front loop wheel machine upper arm one-way balance valve 6-1 and rear loop wheel machine upper arm one-way balance valve 6-2 respectively, one-way balance valve 6 is mainly used in forward and backward loop wheel machine upper arm cylinder movement to stablize control, can also when the pipeline inefficacy connecting between one-way balance valve 6 and multiple directional control valve 3, to amplitude oil cylinder, carry out locking, improve the safety of car load operation.
Before side stevedoring crane carries out lifting operation, first according to the specification of different freight containers, control respectively front loop wheel machine slippage oil cylinder in front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 and control connection 3-1-1 and rear loop wheel machine slippage oil cylinder and control connection 3-2-1 and control front loop wheel machine slippage oil cylinder 7-1 and rear loop wheel machine slippage oil cylinder 7-7 and carry out the adjustment of forward and backward loop wheel machine spacing and make car load meet lifting requirements; Then according to concrete road surface situation, control respectively front loop wheel machine supporting leg amplitude oil cylinder in front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 and control connection 3-1-2, rear loop wheel machine supporting leg amplitude oil cylinder and control connection 3-2-2 and front loop wheel machine landing leg stretching oil cylinder and control connection 3-1-3, rear loop wheel machine landing leg stretching oil cylinder and control and join 3-2-3 and control the main supporting leg that front loop wheel machine supporting leg amplitude oil cylinder 7-2, rear loop wheel machine supporting leg amplitude oil cylinder 7-8 and front loop wheel machine landing leg stretching oil cylinder 7-3, rear loop wheel machine landing leg stretching oil cylinder 7-9 regulate forward and backward loop wheel machine, loop wheel machine is carried out to car load and fix; By front loop wheel machine auxiliary support oil cylinder control connection 3-1-6 and the auxiliary support oil cylinder of rear loop wheel machine, controlling connection 3-2-6 assists support oil cylinder 7-6 and the auxiliary support oil cylinder 7-12 of rear loop wheel machine to strut front loop wheel machine, realize car load safety fixing, prevent that car load from occurring tumbling in carrying out stacking hoisting process.
Before, rear loop wheel machine mainly relies on the underarm oil cylinder in front loop wheel machine multiple directional control valve 3-1 and rear loop wheel machine multiple directional control valve 3-2 to control connection 3-1-4 when carrying out side loading and unloading operation, connection 3-1-5 controlled by front loop wheel machine upper arm oil cylinder and rear loop wheel machine underarm oil cylinder is controlled connection 3-2-4, before rear loop wheel machine upper arm oil cylinder control connection 3-2-5 controls, the front loop wheel machine underarm amplitude oil cylinder 7-4 of rear loop wheel machine, rear loop wheel machine underarm amplitude oil cylinder 7-10 and front loop wheel machine upper arm amplitude oil cylinder 7-5, rear loop wheel machine upper arm amplitude oil cylinder 7-11 realizes the handling of freight container.When forward and backward loop wheel machine occurs when asynchronous, can regulate front loop wheel machine governor valve 2-3, that rear loop wheel machine governor valve 2-4 meets forward and backward loop wheel machine is synchronous; For example, because goods loading of container is inhomogeneous, cause the load of front loop wheel machine larger, the inevitable preferential flow of hydraulic oil of car load Hydraulic Pump output in operation process is loop wheel machine backward, now, loop wheel machine kinematic velocity will be greater than front loop wheel machine, and in order to guarantee the operation of car load safety and steady, we can be by loop wheel machine governor valve 2-3 before regulating, reduce the opening of governor valve 2, before restriction flows to, the flow of loop wheel machine guarantees that front and back loop wheel machine is synchronous; If this situation appears in rear loop wheel machine, can process in this way equally.
Claims (3)
1. a low-cost single pump double loop hydraulic control system, comprises Hydraulic Pump (1), governor valve piece (2), by pass valve (2-1), unloading electromagnetic valve (2-2), front loop wheel machine governor valve (2-3), rear loop wheel machine governor valve (2-4), multiple directional control valve (3), front loop wheel machine multiple directional control valve (3-1), rear loop wheel machine multiple directional control valve (3-2), front loop wheel machine slippage oil cylinder is controlled connection (3-1-1), front loop wheel machine supporting leg amplitude oil cylinder is controlled connection (3-1-2), front loop wheel machine landing leg stretching oil cylinder is controlled connection (3-1-3), front loop wheel machine underarm oil cylinder is controlled connection (3-1-4), front loop wheel machine upper arm oil cylinder is controlled connection (3-1-5), the auxiliary support oil cylinder of front loop wheel machine is controlled connection (3-1-6), rear loop wheel machine slippage oil cylinder is controlled connection (3-2-1), rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection (3-2-2), rear loop wheel machine landing leg stretching oil cylinder is controlled connection (3-2-3), rear loop wheel machine underarm oil cylinder is controlled connection (3-2-4), rear loop wheel machine upper arm oil cylinder is controlled connection (3-2-5), the auxiliary support oil cylinder of rear loop wheel machine is controlled connection (3-2-6), bidirectional hydraulic lock (4), front loop wheel machine slippage oil cylinder bidirectional hydraulic lock (4-1), front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock (4-2), front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock (4-3), front loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock (4-4), rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock (4-5), rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock (4-6), rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock (4-7), rear loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock (4-8), Bidirectional balanced valve (5), front loop wheel machine underarm oil cylinder Bidirectional balanced valve (5-1), rear loop wheel machine underarm oil cylinder Bidirectional balanced valve (5-2), one-way balance valve (6), front loop wheel machine upper arm one-way balance valve (6-1), rear loop wheel machine upper arm one-way balance valve (6-2), actuating unit (7), front loop wheel machine slippage oil cylinder (7-1), front loop wheel machine supporting leg amplitude oil cylinder (7-2), front loop wheel machine landing leg stretching oil cylinder (7-3), front loop wheel machine underarm amplitude oil cylinder (7-4), front loop wheel machine upper arm amplitude oil cylinder (7-5), front loop wheel machine is assisted support oil cylinder (7-6), rear loop wheel machine slippage oil cylinder (7-7), rear loop wheel machine supporting leg amplitude oil cylinder (7-8), rear loop wheel machine landing leg stretching oil cylinder (7-9), rear loop wheel machine underarm amplitude oil cylinder (7-10), rear loop wheel machine upper arm amplitude oil cylinder (7-11), rear loop wheel machine is assisted support oil cylinder (7-12), return filter (8) and hydraulic reservoir (9), is characterized in that, the oil suction of Hydraulic Pump (1) is connected with hydraulic reservoir (9), the oil outlet of Hydraulic Pump (1) is connected with the oil inlet P of governor valve piece (2), the oil outlet A of governor valve piece (2) is connected with front loop wheel machine multiple directional control valve (3-1) oil inlet P, and the oil return inlet T of front loop wheel machine multiple directional control valve (3-1) is connected with the oil inlet of return filter (8), front loop wheel machine slippage oil cylinder is controlled connection (3-1-1), front loop wheel machine supporting leg amplitude oil cylinder is controlled connection (3-1-2), front loop wheel machine landing leg stretching oil cylinder is controlled connection (3-1-3), front loop wheel machine underarm oil cylinder is controlled connection (3-1-4), front loop wheel machine upper arm oil cylinder control connection (3-1-5) and the auxiliary support oil cylinder of front loop wheel machine control join (3-1-6) respectively with front loop wheel machine slippage oil cylinder bidirectional hydraulic lock (4-1), front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock (4-2), front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock (4-3), front loop wheel machine underarm oil cylinder Bidirectional balanced valve (5-1), front loop wheel machine upper arm one-way balance valve (6-1) is connected with the auxiliary support oil cylinder bidirectional hydraulic lock (4-4) of front loop wheel machine.
2. low-cost single pump double loop hydraulic control system according to claim 1, it is characterized in that, described front loop wheel machine slippage oil cylinder bidirectional hydraulic lock (4-1), front loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock (4-2), front loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock (4-3), front loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock (4-4), front loop wheel machine underarm oil cylinder Bidirectional balanced valve (5-1), front loop wheel machine upper arm one-way balance valve (6-1), front loop wheel machine slippage oil cylinder (7-1), front loop wheel machine supporting leg amplitude oil cylinder (7-2), front loop wheel machine landing leg stretching oil cylinder (7-3), front loop wheel machine underarm amplitude oil cylinder (7-4), front loop wheel machine upper arm amplitude oil cylinder (7-5), front loop wheel machine is assisted support oil cylinder (7-6), the oil outlet B of governor valve piece (2) is connected with rear loop wheel machine multiple directional control valve (3-2) oil inlet P, the oil return inlet T of rear loop wheel machine multiple directional control valve (3-2) is connected with the oil inlet of return filter (8).
3. low-cost single pump double loop hydraulic control system according to claim 1, it is characterized in that, described rear loop wheel machine slippage oil cylinder is controlled connection (3-2-1), rear loop wheel machine supporting leg amplitude oil cylinder is controlled connection (3-2-2), rear loop wheel machine landing leg stretching oil cylinder is controlled connection (3-2-3), rear loop wheel machine underarm oil cylinder is controlled connection (3-2-4), rear loop wheel machine upper arm oil cylinder is controlled connection (3-2-5), the auxiliary support oil cylinder of rear loop wheel machine control connection (3-2-6) respectively with rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock (4-5), rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock (4-6), rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock (4-7), rear loop wheel machine underarm oil cylinder Bidirectional balanced valve (5-2), rear loop wheel machine upper arm one-way balance valve (6-2), the auxiliary support oil cylinder bidirectional hydraulic lock (4-8) of rear loop wheel machine is connected, rear loop wheel machine slippage oil cylinder bidirectional hydraulic lock (4-5), rear loop wheel machine supporting leg amplitude oil cylinder bidirectional hydraulic lock (4-6), rear loop wheel machine landing leg stretching oil cylinder bidirectional hydraulic lock (4-7), rear loop wheel machine is assisted support oil cylinder bidirectional hydraulic lock (4-8), rear loop wheel machine underarm oil cylinder Bidirectional balanced valve (5-2), rear loop wheel machine upper arm one-way balance valve (6-2), respectively at rear loop wheel machine slippage oil cylinder (7-7), rear loop wheel machine supporting leg amplitude oil cylinder (7-8), rear loop wheel machine landing leg stretching oil cylinder (7-9), rear loop wheel machine underarm amplitude oil cylinder (7-10), rear loop wheel machine upper arm amplitude oil cylinder (7-11), rear loop wheel machine assists support oil cylinder (7-12) to be connected, the oil return inlet T of governor valve piece (2) is connected with hydraulic reservoir (9), the oil outlet of return filter (8) is connected with hydraulic reservoir (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281640.XU CN203922490U (en) | 2014-05-29 | 2014-05-29 | Low-cost single pump double loop hydraulic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281640.XU CN203922490U (en) | 2014-05-29 | 2014-05-29 | Low-cost single pump double loop hydraulic control system |
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| CN203922490U true CN203922490U (en) | 2014-11-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477812A (en) * | 2014-12-10 | 2015-04-01 | 成都群侠科技有限公司 | Railway locomotive power hydraulic control device |
| CN105697438A (en) * | 2016-04-06 | 2016-06-22 | 上海金盾特种车辆装备有限公司 | Landing leg hydraulic control device and vehicle using landing leg hydraulic control device |
-
2014
- 2014-05-29 CN CN201420281640.XU patent/CN203922490U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477812A (en) * | 2014-12-10 | 2015-04-01 | 成都群侠科技有限公司 | Railway locomotive power hydraulic control device |
| CN105697438A (en) * | 2016-04-06 | 2016-06-22 | 上海金盾特种车辆装备有限公司 | Landing leg hydraulic control device and vehicle using landing leg hydraulic control device |
| CN105697438B (en) * | 2016-04-06 | 2017-12-26 | 上海金盾特种车辆装备有限公司 | Leg hydraulic control device and the vehicle using the leg hydraulic control device |
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