CN206636857U - A kind of axial force of the supports numerical control hydraulic device - Google Patents
A kind of axial force of the supports numerical control hydraulic device Download PDFInfo
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- CN206636857U CN206636857U CN201720260808.2U CN201720260808U CN206636857U CN 206636857 U CN206636857 U CN 206636857U CN 201720260808 U CN201720260808 U CN 201720260808U CN 206636857 U CN206636857 U CN 206636857U
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Abstract
It the utility model is related to a kind of axial force of the supports numerical control hydraulic device.Electrical control cubicles and pumping plant cabinet are combined into one by the utility model, are solved traditional numeric-control pumping plant fuel tank and are separated with electrical control cubicles, take up an area more and bulky shortcoming.Technical scheme is：A kind of axial force of the supports numerical control hydraulic control device, including rack, rack bottom is provided with fuel tank, it is characterized in that fuel tank is provided with oil cylinder interface, oil cylinder interface connects hydraulic planger pump by the road, filter is installed on the pipeline, hydraulic planger pump connects threephase asynchronous machine, frequency converter is housed on threephase asynchronous machine, hydraulic planger pump is equipped with direct acting plug-in type overflow valve, hydraulic planger pump connects two-position four-way solenoid directional control valve by pipeline, three-position four-way electromagnetic directional valve, stacking type hydraulic control check valve and double-action jack, and form loop, in the port of export of hydraulic planger pump, system pressure sensor is set, double-action jack cavity of resorption is provided with port working pressure sensor and pressure gauge, described three-position four-way electromagnetic directional valve, stacking type hydraulic control check valve forms a loading and unloading oil circuit with double-action jack loop.Good foundation pit side-wall Bit andits control effect can be played in foundation pit supporting project.
Description
Technical field
A kind of numerical control hydraulic technical field of supporting is carried out when the utility model is related to excavation of foundation pit to foundation pit enclosure structure,
More particularly to a kind of axial force of the supports numerical control hydraulic device.
Background technology
Axial force of the supports servo-drive system more at present, its hydraulic part are entered using electromagnetic proportion relief valve to axial force of the supports
Row regulation, and only by mechanical lock come the guarantee as system reliability.Operation principle is that hydraulic pump constantly exports fluid, unnecessary
Fluid passing ratio overflow valve returns fuel tank.Proportional pressure control valve be it is a kind of to the exigent precise hydraulic valve of oil quality,
But need often to carry out the replacing of bracing members servo termination in work progress, mud impurity is easy to be mixed into hydraulic system, caused
The spoilage of proportional pressure control valve is higher.Simultaneously electromagnetic proportion relief valve must livewire work, will also result in steel branch after system cut-off
Support decompression.
In order to solve the above problems, most of axle power servo-drive systems avoid proportional overflow defective valve by increasing mechanical lock
And the risk for causing axle power to decline suddenly.However, there is the problem of certain in mechanical lock in use：In foundation pit enclosure structure
In the case that horizontal applied force increases, jack piston rod retraction, mechanical lock locking, now, the pressure of building enclosure is by hydraulic pressure
System working pressure and mechanical lock support force shared, and system monitoring to pressure be only hydraulic pressure, mechanical lock is held
The power of load can not measure, so the true pressure of building enclosure can not be obtained, it is difficult to the accurate support works for instructing servo-drive system.
Also, when building enclosure horizontal applied force increases to certain value, it will be punched and destroyed by bracing members.Therefore, it is necessary to
Using new support system, to improve the reliability of system.
The numerical control pumping plant of axial force of the supports servo-drive system is mostly by an electrical control cubicles and a pumping plant cabinet common combination at present
It is operated, and a combination can generally control 4 bracing members, consequently, it is possible to be occurred as soon as at the construction field (site) more
Combination switch board, control every 4 bracing members to place two switch boards on foundation ditch side, it is very big to occupy construction site
Space, and device excessively cumbersome heaviness in itself, also make troubles to mobile and transport.
The content of the invention
The purpose of this utility model is to provide a kind of axial force of the supports numerical control hydraulic device, mainly solves axial force of the supports servo system
System uses overflow valve fragile so as to cause the technical problem of thrashing.
Thinking of the present utility model is not use electromagnetic proportion relief valve, but passes through the rotating speed of Frequency Converter Control motor
The fluid flow of hydraulic pump output is directly adjusted, so as to reduce the probability of thrashing；The utility model uses fluid-control one-way
Valve ensures the safety of hydraulic system.
The utility model proposes axial force of the supports servo-drive system numerical control pumping plant, be by traditional electrical control cubicles and two, pumping plant cabinet
Switch board is combined into one, and each numerical control pumping plant can control 8 bracing members, substantially increases the space profit of construction site
With.
In order to solve the above-mentioned technical problem, the utility model is realized using such technical scheme：One kind support
Axle power numerical control hydraulic control device, including rack, rack bottom are provided with fuel tank, it is characterized in that fuel tank is provided with oil cylinder interface, oil
Cylinder interface connects hydraulic planger pump by the road, is provided with filter on the pipeline, hydraulic planger pump connection threephase asynchronous machine, and three
Frequency converter is housed, transducer drive threephase asynchronous machine dragging hydraulic planger pump, hydraulic planger pump is according to electricity on phase Induction Machines
The hydraulic oil of the different output different flows of machine rotating speed.Hydraulic planger pump is equipped with direct acting plug-in type overflow valve, and hydraulic planger pump is defeated
The rated pressure gone out is determined by the regulation of direct acting plug-in type overflow valve.Hydraulic planger pump connects two-position four-way by pipeline
Solenoid directional control valve, three-position four-way electromagnetic directional valve, stacking type hydraulic control check valve and double-action jack, and loop is formed, hydraulic pressure
Outlet of plunger pump hydraulic power source arrives by two-position four-way solenoid directional control valve, three-position four-way electromagnetic directional valve, stacking type hydraulic control check valve
Double-action jack, the hydraulic oil of double-action jack discharge through three-position four-way electromagnetic directional valve, two-position four-way solenoid directional control valve,
Return to fuel tank.For the reliable accurate operation of safeguards system, High Definition Systems pressure sensing is set in the port of export of hydraulic planger pump
Device, monitor hydraulic plunger pump discharge pressure.Double-action jack cavity of resorption is provided with high-precision port working pressure sensor and pressure
Table, the size of double-action jack pressure is monitored in real time.Described three-position four-way electromagnetic directional valve, stacking type hydraulic control check valve with
Double-action jack loop forms a loading and unloading oil circuit.The wherein work of loading, the realization of offloading functions depending on valve
Make function position.Two-position four way change valve draws several loading and unloading oil circuits.
Enclosure top is provided with wireless antenna, and fuel tank side is provided with liquid level gauge, and mailbox bottom is provided with oil drain plug, cabinet front
Top is provided with some pressure gauges；The downside of pressure gauge is some manual loadings and unloading button；Manual loading and unload
It is power supply module to carry button lower left；Manual loading and unloading button lower right are PLC components；It is below PLC components
Frequency converter；Power interface and displacement line air plug interface are provided with the top of rear of cabinet；Be below some threephase asynchronous machines, three
Four-way electromagnetic reversing valve, stacking type hydraulic control check valve；It is some oil cylinder interfaces below the valve group of above-mentioned valve composition.
In use, filter filters to the fluid in fuel tank；Threephase asynchronous machine adjusts rotating speed by frequency converter,
The output flow of hydraulic planger pump is accurately controlled；Direct acting plug-in type overflow valve carries out maximum pressure limitation to oil pressure and protected
Shield；System pressure sensor is measuring the oil pressure of the pumping plant port of export；Two-position four-way solenoid directional control valve is controlling hydraulic oil to enter
The closure of mouth end oil circuit；Three-position four-way electromagnetic directional valve can switch the flow direction of fluid, realize two functions of loading and unloading；Three
Position four-way electromagnetic reversing valve combination stacking type hydraulic control check valve, the stable loading and unloading of common control system；Port working pressure
For force snesor to measure the operating pressure in fluid exit, pressure gauge shows the pressure that the port working pressure sensor measures
Power；Double-action jack can be to the application of the accurate axle power of foundation pit enclosure structure progress after being connected to oil hydraulic system.One pumping plant system
Unite and can control 8 oil circuits, loading and unloading is independent of each other between each asphalt channel, and the independent control of 8 jack can be achieved.
The beneficial effect that the utility model is realized：The utility model proposes a kind of axial force of the supports based on numerical control hydraulic technology
Servo-drive system, by controlling the rotating speed of variable-frequency motor directly to adjust the fluid flow that hydraulic pump exports, solenoid-operated proportional is not used
Overflow valve, system cost is reduced, and the situation of fuel tank is returned in the absence of unnecessary fluid, reduce the risk of system failure.
The utility model improves Hydraulic System Reliability using hydraulic control one-way valve so that reliability has strengthened.The utility model will
Two switch boards of electrical control cubicles and pumping plant cabinet are combined into one, and each numerical control pumping plant can control 8 bracing members, improve and apply
The space utilization on workshop ground.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the utility model axial force of the supports servo-drive system.
Fig. 2 is single oil circuit hydraulic principle of the utility model axial force of the supports servo-drive system.
Fig. 3 is the utility model apparatus structure schematic front view.
Fig. 4 is the utility model apparatus structure diagrammatic rear view.
In figure：1st, fuel tank；2nd, filter；3rd, frequency converter；4th, threephase asynchronous machine；5th, hydraulic planger pump；6th, direct acting is inserted
Formula overflow valve；7th, system pressure sensor；8th, two-position four-way solenoid directional control valve；9th, three-position four-way electromagnetic directional valve；10th, superposing type
Hydraulic control one-way valve；11st, port working pressure sensor；12nd, pressure gauge；13rd, double-action jack；14th, wireless antenna；15th, hand
Dynamic loading and unloading button；16th, power supply module；17th, PLC components；18th, displacement line air plug interface；19th, power interface；20th, oil cylinder
Interface；21st, liquid level gauge；22nd, oil drain plug.
Embodiment
To make the purpose of this utility model and operation principle expression apparent, with reference to pair this practicality of Fig. 1,2,3,4
New carry out embodiment is discussed in detail.
A kind of axial force of the supports numerical control hydraulic control device, including rack, rack bottom are provided with fuel tank 1, and fuel tank is provided with oil
Cylinder interface 22, oil cylinder interface 22 connect hydraulic planger pump 5 by the road, and filter 2 is provided with the pipeline, and hydraulic planger pump 5 connects
Threephase asynchronous machine 4 is connect, frequency converter 3 is housed on threephase asynchronous machine 4, frequency converter 3 drives threephase asynchronous machine 4 to drag hydraulic column
Fill in pump 5, hydraulic oil of the hydraulic planger pump 5 according to the different output different flows of motor speed.Hydraulic planger pump 5 is inserted equipped with direct acting
Enter formula overflow valve 6, the rated pressure that hydraulic planger pump 5 exports is determined by the regulation of direct acting plug-in type overflow valve 6.Hydraulic pressure
Plunger pump 5 connects two-position four-way solenoid directional control valve 8, three-position four-way electromagnetic directional valve 9, stacking type hydraulic control check valve 10 by pipeline
And double-action jack 13, and loop is formed, two-position four-way solenoid directional control valve 8, three is passed through in the outlet hydraulic source of hydraulic planger pump 5
Four-way electromagnetic reversing valve 9, stacking type hydraulic control check valve 10 arrive double-action jack 13, the hydraulic oil that double-action jack 13 is discharged
Through three-position four-way electromagnetic directional valve 9, two-position four-way solenoid directional control valve 8, fuel tank 1 is returned to.Reliable for safeguards system accurately runs,
High Definition Systems pressure sensor 7 is set in the port of export of hydraulic planger pump 5, monitors the outlet pressure of hydraulic planger pump 5.Double acting
The cavity of resorption of jack 13 is provided with high-precision port working pressure sensor 11 and pressure gauge 12, monitors double-action jack 13 in real time and presses
The size of power.Described three-position four-way electromagnetic directional valve 9, stacking type hydraulic control check valve 10 and the loop of double-action jack 13 composition
One loading and unloading oil circuit.The wherein work function position of loading, the realization of offloading functions depending on valve.Two-position four-way changes
Several loading and unloading oil circuits are drawn to valve 8.
Enclosure top is provided with wireless antenna 14, and fuel tank side is provided with liquid level gauge 21, and mailbox bottom is provided with oil drain plug 22, machine
Cabinet front top is provided with some pressure gauges 12；The downside of pressure gauge 12 is some manual loadings and unloading button 15；
Manual loading and the unloading lower left of button 15 are power supply modules 16；Manual loading and the unloading lower right of button 15 are PLC groups
Part 17（Producer is Siemens, model S7-200）；The lower section of PLC components 17 is frequency converter 3；Power supply is provided with the top of rear of cabinet
Interface 19 and displacement line air plug interface 18；It is some threephase asynchronous machines 4, three-position four-way electromagnetic directional valve 9, superposing type below
Hydraulic control one-way valve 10；It is some oil cylinder interfaces 20 below the valve group of above-mentioned valve composition.
When system needs to be loaded, the manual loading button 15 on numerical control pumping plant, the hydraulic plunger are pressed
Pump 5 is started working, and acts on the fuel tank 1, is exported after making filtering of the fluid therein by the filter 2, the frequency conversion
Device 3 controls the rotating speed of the threephase asynchronous machine 4 to adjust the hydraulic planger pump 5 to provide the work pressure that system requirements reaches
Power, the system pressure sensor 7 measure the oil pressure of the pumping plant port of export, the two-position four-way solenoid directional control valve 8 with described three
PA the and BT oil circuits of four-way electromagnetic reversing valve 9 are turned on, and fluid provides operating pressure through the stacking type hydraulic control check valve 10, are protected
Card unidirectional oil-feed in loading, the port working pressure sensor 11 measures the operating pressure of exit fluid, and passes through institute
State pressure gauge 12 and show that measurement result, the double-action jack 13 can be achieved to foundation pit enclosure structure after being connected to hydraulic system
Accurate loading.
When system needs to be unloaded, the unloading button 15 manually on numerical control pumping plant, the two-position four-way are pressed
PA the and BT oil circuits of solenoid directional control valve 8 are connected, PB the and AT oil circuits of the three-position four-way electromagnetic directional valve 9 are connected, part oil
Pressure is to open the stacking type hydraulic control check valve 10, the return of oil circuit when realizing unloading, and a part of oil pressure is used for will be described double
Effect jack 13 pushes back, and completes the reverse application of oil pressure, that is, unloads.
System timesharing substep carries out loading and unloading to each oil circuit, and load or unload is carried out in a certain loading and unloading oil circuit
When, remaining oil circuit all should close the respective three-position four-way electromagnetic directional valve 9, maintain its current oil pressure, with ensure each oil circuit it
Between independently of each other, be independent of each other.
If when electric-control system failure or system cut-off, the unaffected work as usual of the stacking type hydraulic control check valve 10
Make, the three-position four-way electromagnetic directional valve 9 is in middle position cut-off state, it is possible to achieve the effect of pressurize.
The utility model improves the reliability and safety of existing axial force of the supports servo-drive system.
Claims (5)
1. a kind of axial force of the supports numerical control hydraulic device, including rack, rack bottom is provided with fuel tank, it is characterized in that fuel tank is provided with oil
Cylinder interface, oil cylinder interface connect hydraulic planger pump by the road, and filter is provided with the pipeline, and hydraulic planger pump connection three is different
Motor is walked, frequency converter, transducer drive threephase asynchronous machine dragging hydraulic planger pump, hydraulic plunger are housed on threephase asynchronous machine
Pump is equipped with direct acting plug-in type overflow valve, and hydraulic planger pump connects two-position four-way solenoid directional control valve, 3-position 4-way electromagnetism by pipeline
Reversal valve, stacking type hydraulic control check valve and double-action jack, and loop is formed, in the port of export of hydraulic planger pump, system is set
Pressure sensor, double-action jack cavity of resorption are provided with port working pressure sensor and pressure gauge, described 3-position 4-way electromagnetism
Reversal valve, stacking type hydraulic control check valve and double-action jack loop form a loading and unloading oil circuit.
2. a kind of axial force of the supports numerical control hydraulic device according to claim 1, it is characterized in that：Two-position four way change valve is drawn
Several loading and unloading oil circuits.
3. a kind of axial force of the supports numerical control hydraulic device according to claim 1, it is characterized in that：Enclosure top is provided with wireless day
Line.
4. a kind of axial force of the supports numerical control hydraulic device according to claim 1, it is characterized in that：Fuel tank side is provided with liquid level
Meter, tank bottoms are provided with oil drain plug.
5. a kind of axial force of the supports numerical control hydraulic device according to claim 1, it is characterized in that：The pressure gauge is arranged on machine
Cabinet front top；The downside of pressure gauge is some manual loadings and unloading button；Manual loading and unloading button lower left are
Power supply module；Manual loading and unloading button lower right are PLC components；It is frequency converter below PLC components；Rear of cabinet top
Portion is provided with power interface and displacement line air plug interface；It is some threephase asynchronous machines, three-position four-way electromagnetic directional valve below, folds
Add formula hydraulic control one-way valve；It is some oil cylinder interfaces below the valve group of above-mentioned valve composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720260808.2U CN206636857U (en) | 2017-03-17 | 2017-03-17 | A kind of axial force of the supports numerical control hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720260808.2U CN206636857U (en) | 2017-03-17 | 2017-03-17 | A kind of axial force of the supports numerical control hydraulic device |
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| Publication Number | Publication Date |
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| CN206636857U true CN206636857U (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720260808.2U Active CN206636857U (en) | 2017-03-17 | 2017-03-17 | A kind of axial force of the supports numerical control hydraulic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035944A (en) * | 2017-12-22 | 2018-05-15 | 山东大学 | A kind of frequency conversion high accuracy super high pressure hydraulic control loading system and method |
| CN116557280A (en) * | 2023-05-13 | 2023-08-08 | 杭州贝特设备制造有限公司 | Control method of double-loop electric pump, double-loop electric pump and storage medium |
-
2017
- 2017-03-17 CN CN201720260808.2U patent/CN206636857U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035944A (en) * | 2017-12-22 | 2018-05-15 | 山东大学 | A kind of frequency conversion high accuracy super high pressure hydraulic control loading system and method |
| CN116557280A (en) * | 2023-05-13 | 2023-08-08 | 杭州贝特设备制造有限公司 | Control method of double-loop electric pump, double-loop electric pump and storage medium |
| CN116557280B (en) * | 2023-05-13 | 2024-02-02 | 杭州贝特设备制造有限公司 | Control method of double-loop electric pump, double-loop electric pump and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171123 Address after: Jiaxing City, Zhejiang province 314001 Nanhu District Ling Gong Tang Road No. 3339 (Jiaxing city) building 3 Room 309, Room 301, Room 302 Patentee after: Jiaxing Tonghe Sensor Technology Co., Ltd. Address before: 200092 Shanghai city Yangpu District Guokang Road No. 46 Tongji Science and Technology Building Room 1403 Patentee before: Toehold Civil Engineering Technology Co., Ltd., Shanghai |
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| TR01 | Transfer of patent right |