CN205895778U - Numerical control constant voltage and energy -saving hydraulic station - Google Patents
Numerical control constant voltage and energy -saving hydraulic station Download PDFInfo
- Publication number
- CN205895778U CN205895778U CN201620121410.6U CN201620121410U CN205895778U CN 205895778 U CN205895778 U CN 205895778U CN 201620121410 U CN201620121410 U CN 201620121410U CN 205895778 U CN205895778 U CN 205895778U
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- pressure
- energy
- hydraulic station
- hydraulic
- low discharge
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Abstract
The utility model provides a numerical control constant voltage and energy -saving hydraulic station, the overflow valve has been cancelled, quantitative hydraulic pump with the low discharge of speed governing motor drive of a miniwatt constitutes the low discharge return circuit, constitute compound hydraulic pressure station with the large -traffic major loop that a big power motor drive hydraulic pump quantitative relatively constitutes, it carries for numerical control system to convert the pressure variation of system to the signal of telecommunication with pressure transmitter, control miniwatt buncher, make it keep low discharge return circuit pressure invariable along with pressure variation automatic speed changing near setting for operating pressure, large -traffic major loop cooperation low discharge return circuit output maximum flow, this compound hydraulic pressure station pressure is invariable, supply and demand flow balance, controlled mechanical work precision and stability have been improved promptly, again about energy -saving 50%.
Description
Technical field:
This utility model is related to the Hydraulic Station of a kind of numerical-control constant-pressure and energy-conservation.
Background technology:
Traditional Hydraulic Station is all the operating pressure of the holding system relying on overflow valve, overflows at a high speed because overflow valve exists
Stream temperature arrising caused by friction lead to hydraulic oil viscosity reduce system working pressure decrease, have a strong impact on controlled mechanical operating accuracy and
Stability, although occurring in that frequency conversion and servo techniques improve to some extent in recent years, technical performance is also not reaching to most advanced level,
Also because its control system complexity that involves great expense constrains penetration and promotion.
Content of the invention:
This utility model provides the Hydraulic Station of a kind of constant voltage and energy-conservation.
This utility model eliminates the overflow valve at conventional hydraulic station, using the superior low power switch of a speed adjusting performance
Reluctance motor or permagnetic synchronous motor (abbreviation buncher), drive the quantitative hydraulic pump of a low discharge to constitute a low discharge
Output loop, the main flow output loop group constituting with one big flow quantitative hydraulic pump of Motor drive of a relatively high power
Close, become the configuration of dual system.Increase by an intelligent pressure that may only freely set operating pressure in high-pressure oil passage system to become
Send device, the change of system pressure is converted into the signal of telecommunication and inputs to digital control system by intelligent pressure transmitter, by digital control system to many
Point parameter is set and is managed as a whole.It is provided with an adjustable pressure relief valve in high-pressure system, and a pressure switch control
One electromagnetic relief valve of system constitutes two-stage, the safety precautions in twice defence line.
This utility model can also with separate unit buncher drive separate unit quantitative hydraulic pump, with pressure transmitter, accumulator,
Pressure switch, electromagnetic relief valve, it is combined into the Hydraulic Station of single pump type independence.The automatic constant pressure control of the Hydraulic Station of single pump, be
The realization of buncher own controller input is directly superimposed upon by the signal of telecommunication of intelligent pressure transmitter.
Brief description:
Accompanying drawing 1 is the system schematic of this utility model compound constant-pressure energy-saving Hydraulic Station.
Accompanying drawing 2 is the system schematic of this utility model single pump type control constant-pressure energy-saving Hydraulic Station.
Referring to accompanying drawing 1: with a small-power buncher 1, drive a low discharge quantitative hydraulic pump 2, purchase into low discharge
Oil supply loop, drive corresponding quantitative hydraulic pump 9 to constitute the major loop of big flow with the motor 10 of more than, with intelligence
Pressure transmitter 3, accumulator 4, pressure switch 5, electromagnetic relief valve 6,12, adjustable pressure relief valve 13, check valve 11, fuel tank 7,
Heating net 8 and digital control system collectively constitute compound hydraulic station.
Referring to accompanying drawing 2: can also with separate unit buncher 1 drive separate unit quantitative hydraulic pump 2, with intelligent pressure transmitter 3,
Accumulator 4, pressure switch 5, electromagnetic relief valve 6, fuel tank 7, the Hydraulic Station heating net 8, being combined into single pump type independence.Single pump
The automatic constant pressure control of Hydraulic Station, can directly be superimposed upon buncher own controller by the signal of telecommunication of intelligent pressure transmitter
Input is realized.
Specific embodiment:
Compound hydraulic station implementation process shown in accompanying drawing 1 is:
Switch on power, a system working pressure is set by the digital-scroll technique of intelligent pressure transmitter 3, then connects low discharge
The power supply in loop, low discharge loop motor 1 starts drive hydraulic pump 2 to the oil-filled pressurization of system, simultaneously to electricity in digital control system.When
When system pressure exceedes intelligent pressure transmitter 3 setting pressure, low discharge loop motor is under the signal of intelligent transducer feeds back
Automatically begin to smooth running slowly, when rotating speed low to hydraulic pump fuel-displaced can not compensate hydraulic system leakage when, pressure from
So can be less than pressure value, motor and the automatic raising speed setting, the pressure of system is just maintained and sets by so smooth circulation all the time
Within the positive and negative 0.25mpa of constant-pressure, this change limit value is that not needing of just setting when being dispatched from the factory by intelligent transducer adjusts again.
When controlled mechanical equipment is started working, touch " open/stop " button by digital control system, (can also use remotely control) is main
Flow circuit motor 10 starts, and drives hydraulic pump 9 to start, together provides a system to the hydraulic pressure of maximum stream flow with low discharge loop
Oil, machinery beginning simultaneously enters continuous and automatic work by the first process actions, and when master cylinder Overstroke, system pressure gos up
To intelligent transducer 3 upper pressure limit when major loop motor 10 close, pressurize is continued by minor loop.The opening of major loop motor 10,
Programmed determination by the job requirement of plant equipment by digital control system with mode between the stopping time；
Separate unit formula Hydraulic Station implementation process shown in accompanying drawing 2 is:
Switch on power, a system working pressure is set by the digital-scroll technique of intelligent pressure transmitter 3, switches on power, electricity
Machine 1 starts drive hydraulic pump 2 to the oil-filled pressurization of system, when system pressure exceedes intelligent pressure transmitter 3 and sets pressure, motor
Automatically begin to smooth running slowly under the signal feedback of intelligent transducer, can not compensate to the fuel-displaced of hydraulic pump when rotating speed is low
During the leakage of hydraulic system, pressure naturally can be less than pressure value, motor and the automatic raising speed setting, and so smooth circulation just will
The pressure of system maintains all the time and sets within the positive and negative 0.25mpa of pressure, when this change limit value is to be dispatched from the factory by intelligent transducer
Not needing of just setting adjusts again.
The constant voltage that reaches this utility model improves beyond controlled mechanical operating accuracy and stability, compared with conventional hydraulic station also
Achieve energy-conservation more than 50%, overcome the frequency conversion or servo techniques motor when compensating hydraulic system leakage and be unable to Ultra-Low Speed fortune
The defect turning, is another more advanced method of combination property, its cost is lower, and control method is simpler, and energy-saving horizontal is higher,
Be conducive to penetration and promotion on a large scale.
Claims (3)
1. a kind of numerical-control constant-pressure and energy-saving hydraulic station it is characterised in that: with a small-power buncher (1), drive one little
Flow quantitative hydraulic pump (2) constitutes low discharge loop, and the motor (10) of more than drives corresponding quantitative hydraulic pump (9) structure
Become the major loop of big flow, and intelligent pressure transmitter (3), accumulator (4), pressure switch (5), electromagnetic relief valve (6,12),
The compound hydraulic that adjustable pressure relief valve (13), check valve (11), fuel tank (7), heating net (8) and digital control system collectively constitute
Stand.
2. numerical-control constant-pressure as claimed in claim 1 and energy-saving hydraulic station it is characterised in that: separate unit buncher (1) drives separate unit
Quantitative hydraulic pump (2) is with intelligent pressure transmitter (3), accumulator (4), pressure switch (5), combining of electromagnetic relief valve (6) can
To become the Hydraulic Station of single pump type independence, the output signal of telecommunication of intelligent pressure transmitter (3) is directly to be superimposed upon buncher (1)
On subsidiary controller speed governing port.
3. numerical-control constant-pressure as claimed in claim 1 and energy-saving hydraulic station it is characterised in that: small-power buncher (1) is switch
Reluctance motor, the motor (10) in big flow loop is three-phase AC permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620121410.6U CN205895778U (en) | 2016-02-16 | 2016-02-16 | Numerical control constant voltage and energy -saving hydraulic station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620121410.6U CN205895778U (en) | 2016-02-16 | 2016-02-16 | Numerical control constant voltage and energy -saving hydraulic station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895778U true CN205895778U (en) | 2017-01-18 |
Family
ID=57764768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620121410.6U Expired - Fee Related CN205895778U (en) | 2016-02-16 | 2016-02-16 | Numerical control constant voltage and energy -saving hydraulic station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485095A (en) * | 2016-02-16 | 2016-04-13 | 张昌盛 | Numerical control constant-pressure and energy-saving hydraulic station |
-
2016
- 2016-02-16 CN CN201620121410.6U patent/CN205895778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485095A (en) * | 2016-02-16 | 2016-04-13 | 张昌盛 | Numerical control constant-pressure and energy-saving hydraulic station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |