CN201381976Y - Hydraulic control system of aggregate concrete pump - Google Patents
Hydraulic control system of aggregate concrete pump Download PDFInfo
- Publication number
- CN201381976Y CN201381976Y CN200920006457U CN200920006457U CN201381976Y CN 201381976 Y CN201381976 Y CN 201381976Y CN 200920006457 U CN200920006457 U CN 200920006457U CN 200920006457 U CN200920006457 U CN 200920006457U CN 201381976 Y CN201381976 Y CN 201381976Y
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- hydraulic
- valve
- relief valve
- oil
- cylinders
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Abstract
The utility model discloses a hydraulic control system of an aggregate concrete pump. A hydraulic oil tank is connected with a relief valve by a gear pump pipeline; the relief valve is connected with a hydraulic motor by an electro-hydraulic (electromagnetic) directional valve, and connected with an unloading relief valve and an accumulator by another gear pump pipeline; the unloading relief valve and the accumulator are connected with the electro-hydraulic (electromagnetic) directional valve and two swing cylinders; the hydraulic oil tank is connected with a pilot-operated relief valve and two gear pumps by plunger pumps; the pilot-operated relief valve is connected with two main cylinders by the electro-hydraulic (electromagnetic) directional valve; all the main cylinders are further connected with corresponding output cylinders; and the output cylinders and all swing cylinders are connected with S pipes. The system adopts a structure in which a motor drives a triple pump, thereby reducing the cost and increasing the inside space of the equipment; adopts the unloading relief valve to set and protect the outlet pressure of the gear pumps, thereby not only simplifying the system, but also saving energy, reducing heating, and reducing the noise; and has simpler structure, is more reliable, and is more convenient to repair.
Description
Technical field
The utility model relates to hydraulic control system, is meant the hydraulic control system of pea gravel concreten transfer pump especially.
Background technique
Present pea gravel concreten transfer pump, the hydraulic control system complex structure of mortar pump generally adopt a plurality of motors, and the space of hold facility is bigger; Distributing valve in the control system adopts pilot operated compound relief valve, causes phenomenons such as plugging and S pipe off-axis easily; Hydraulic system is overflow by force after reaching set pressure, also has the defective of overflow by force in the transfer pump proper functioning, so not only wastes energy consumption, causes hydraulic system heating and causes the problem of oily Wen Taigao.
The model utility content
In view of this, the utility model is to provide the hydraulic control system of pea gravel concreten transfer pump, and is more with the motor that solves in the above-mentioned hydraulic control system, and complex structure, bigger problem takes up room.
For addressing the above problem, the utility model provides the hydraulic control system of pea gravel concreten transfer pump, the hydraulic control system of pea gravel concreten transfer pump, comprise: hydraulic oil container connects relief valve by the gear pump pipeline, relief valve connects oil hydraulic motor by electric liquid (electromagnetism) selector valve, connect unloading overflow valve, accumulator by another road gear pump pipeline, unloading overflow valve, accumulator connect electric liquid (electromagnetism) selector valve and two oscillating oil cylinders jointly; Hydraulic oil container connects pilot operated compound relief valve, two gear pumps by plunger pump, and pilot operated compound relief valve connects two master cylinders by electric liquid (electromagnetism) selector valve.
Preferably, described oil hydraulic motor also connects stirring system.
Preferably, each master cylinder also connects corresponding output cylinder, and described output cylinder, each oscillating oil cylinder also connect the S pipe.
System in the utility model adopts plunger pump and two gear pumps to combine, be applied on the pea gravel concreten transfer pump, and adopt unloading overflow valve to cooperate with gear pump, master cylinder oil circuit and electric liquid (electromagnetism) selector valve are concentrated on the valve piece, and with the application of fluid motor-driven stirring system on the pea gravel concreten transfer pump.
This system has following advantage:
1, distributing valve default pressure is higher, and the accumulator volume is big, makes the swing oil action of distributing valve rapider;
2, adopt unloading overflow valve to set and protect the outlet pressure of gear pump, both simplified system made system more energy-conservation again, had reduced system's heating, reduced noise;
3, adopt the structure of a motor driving treble pump, reduced cost, also increased the pass sense of device interior, also increased the space of device interior;
4, the hydraulic driving stirring is easier, more reliable than the structure that motor direct-drive stirs, and also is convenient to maintenance;
5, adopt integral valve piece, more compact structure.
Description of drawings
Fig. 1 is embodiment's a structural drawing.
Embodiment
For clearly demonstrating the technological scheme in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.
Referring to Fig. 1, this system comprises: master cylinder oil circuit, oscillating oil cylinder oil circuit, stirring decompression oil circuit.
After the oil suction filter core oil suction that plunger pump 15 in the master cylinder oil circuit passes through in the hydraulic pressure mailbox, pressure oil is by pilot operated compound relief valve 172 (DB10-1-50B/315), in setting pressure is under the 22mpa, enter electric liquid (electromagnetism) selector valve (4WE10G31B/CG24N9Z5L) subsequently, when electricity liquid (electromagnetism) selector valve was in the meta state, pressure oil directly flowed back to hydraulic oil container by air cooler; When position, electric liquid (electromagnetism) valve left side (right side) got electric work, pressure oil entered 12, two master cylinders of master cylinder 12 and adopts coupled in series, and under the effect of pressure oil, an oil cylinder advances, and the another oil cylinder then retreats; When master cylinder 12 pistons run to the stroke end, trigger reversing arrangement (inductive proximity switch), control through automatical control system, make the position, the right side (left side) of electric liquid (electromagnetism) selector valve get electric work, the commutation of electricity liquid (electromagnetism) valve causes pressure oil to change direction, thereby the piston motion direction of master cylinder 12 is changed, go round and begin again like this, realized that leapfroging of pumping master cylinder 12 pistons retreats.The piston of carrying cylinder is directly to be contained on the piston rod of master cylinder 12, thereby has also just realized the forward-reverse of piston of conveying cylinder, has realized that finally one is carried cylinder to suck concrete in hopper, and another carries cylinder then by the S pipe concrete to be extruded.
The pressure oil of the gear pump 161 in the oscillating oil cylinder oil circuit is under the 15mpa by leading type unloading overflow valve 171 (DA10-1-30B/315) in setting pressure, enters accumulator 13 and enters electric liquid (electromagnetism) selector valve (4WE10E31B/CG24N9Z5L).Electricity liquid (electromagnetism) selector valve must not electricity and when being in meta, pressure oil is obstructed, pressure oil in the accumulator 13 reaches setting pressure 15mpa very soon, this moment leading type unloading overflow valve 171 automatic overflows, the pressure oil of gear pump 171 directly flows back to fuel tank, pressure is almost nil, when pressure is lower than setting pressure, unloading overflow valve 171 overflows are closed, pressure oil rises to overflow again after the setting pressure again, and at this moment, gear pump 161 power demands are almost nil, this has just reduced power loss, reduces the heating of hydraulic system again.When electric liquid (electromagnetism) selector valve one end gets when electric, an oscillating oil cylinder 11 of pressure oil and electric liquid (electromagnetism) selector valve is connected, pressure oil moment of pressure oil in the accumulator 13 and gear pump 161 rises and enters oscillating oil cylinder 11, promote the swing of S pipe fast, the oil back chamber UNICOM of another oscillating oil cylinder 11 of while and electric liquid (electromagnetism) valve, hydraulic oil is got back to fuel tank.
The pressure oil that stirs the gear pump 162 in the decompression oil circuit under pressure is set at 10mpa, enters oil hydraulic motor through hand-operated direction valve by overlapping relief valve 14.When hand-operated direction valve was in meta, pressure oil directly flowed back to hydraulic oil container, and oil hydraulic motor does not change; When the hand-operated direction valve handle spurs, the changeover valve core action, pressure oil enters oil hydraulic motor, the motor rotation, when the hand-operated direction valve handle oppositely spurred, motor promptly reversed.
When the piston of master cylinder 12 runs to the stroke end, reversing arrangement (as near switch) sends commutation signal (annotate: oscillating oil cylinder 11 is than master cylinder 12 commutation in 0.3 second in advance), the other end of electricity liquid (electromagnetism) selector valve gets, pressure oil and another oscillating oil cylinder 11 oil circuits are connected, under the effect of pressure oil, promote the swing in the opposite direction of S pipe, master cylinder 12 drives carries the cylinder motion, the S pipe carries cylinder to suck, extrude concrete by the S pipe after swing.
Cooperate piston of conveying cylinder like this, concrete pump is delivered on the flooring.After the shutdown, can the pressure oil in the accumulator 13 be discharged, be convenient to maintenance and maintenance by unloading valve 171.Distributing valve system hydraulic circuit provides pressure oil to automatic lubricant pump simultaneously, oscillating oil cylinder 11 every swings once, lubricant pump is just given needs lubricated part send to lubricating grease.
This system can also change hand-operated direction valve into electric liquid (electromagnetism) selector valve, can realize stirring at a distance clockwise and anticlockwise.
System in the utility model adopts plunger pump and two gear pumps to combine, be applied on the pea gravel concreten transfer pump, and adopt unloading overflow valve to cooperate with gear pump, master cylinder oil circuit and electric liquid (electromagnetism) selector valve are concentrated on the valve piece, and with the application of fluid motor-driven stirring system on the pea gravel concreten transfer pump.
This system has following advantage:
1, distributing valve default pressure is higher, and the accumulator volume is big, makes the swing oil action of distributing valve rapider;
2, adopt unloading overflow valve to set and protect the outlet pressure of gear pump, both simplified system made system more energy-conservation again, had reduced system's heating, reduced noise;
3, adopt the structure of a motor driving treble pump, reduced cost, also increased the pass sense of device interior, also increased the space of device interior;
4, the hydraulic driving stirring is easier, more reliable than the structure that motor direct-drive stirs, and also is convenient to maintenance;
5, adopt integral valve piece, more compact structure.
For the system that is set forth among each embodiment of the utility model, all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1, the hydraulic control system of pea gravel concreten transfer pump, it is characterized in that, comprise: hydraulic oil container connects relief valve (14) by gear pump (162) pipeline, relief valve (14) connects oil hydraulic motor by electro-hydraulic reversing valve or solenoid directional control valve, connect unloading overflow valve (171), accumulator (13) by gear pump (161) pipeline, unloading overflow valve (171), accumulator (13) connect electro-hydraulic reversing valve or solenoid directional control valve and two oscillating oil cylinders (11) jointly; Hydraulic oil container connects pilot operated compound relief valve (172), gear pump (161) and gear pump (162) by plunger pump (15), and pilot operated compound relief valve (172) connects two master cylinders (12) by electro-hydraulic reversing valve or solenoid directional control valve.
2, the hydraulic control system of pea gravel concreten transfer pump according to claim 1 is characterized in that, described oil hydraulic motor also connects stirring system.
3, the hydraulic control system of pea gravel concreten transfer pump according to claim 1 is characterized in that, each master cylinder (12) also connects corresponding output cylinder, and described output cylinder, each oscillating oil cylinder (11) also connect the S pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920006457U CN201381976Y (en) | 2009-03-12 | 2009-03-12 | Hydraulic control system of aggregate concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920006457U CN201381976Y (en) | 2009-03-12 | 2009-03-12 | Hydraulic control system of aggregate concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381976Y true CN201381976Y (en) | 2010-01-13 |
Family
ID=41525453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920006457U Expired - Fee Related CN201381976Y (en) | 2009-03-12 | 2009-03-12 | Hydraulic control system of aggregate concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201381976Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791564A (en) * | 2018-08-16 | 2018-11-13 | 西南科技大学 | Integrated hydraulic system robot leg |
| CN114688128A (en) * | 2020-12-31 | 2022-07-01 | 三一汽车制造有限公司 | Emergency pumping control package, hydraulic system and pumping equipment |
-
2009
- 2009-03-12 CN CN200920006457U patent/CN201381976Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791564A (en) * | 2018-08-16 | 2018-11-13 | 西南科技大学 | Integrated hydraulic system robot leg |
| CN114688128A (en) * | 2020-12-31 | 2022-07-01 | 三一汽车制造有限公司 | Emergency pumping control package, hydraulic system and pumping equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20130312 |