CN107401539A - A kind of speed-adjustable hydraulic power system - Google Patents
A kind of speed-adjustable hydraulic power system Download PDFInfo
- Publication number
- CN107401539A CN107401539A CN201710709700.1A CN201710709700A CN107401539A CN 107401539 A CN107401539 A CN 107401539A CN 201710709700 A CN201710709700 A CN 201710709700A CN 107401539 A CN107401539 A CN 107401539A
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- pilot operated
- pressure
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 239000002828 fuel tank Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6343—Electronic controllers using input signals representing a temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of speed-adjustable hydraulic power system.The system is mainly made up of motor 1, gear pump 2, check valve 3, overflow valve 4, pressure gauge 6, two-position four-way solenoid valve 7,3-position 4-way electro-hydraulic proportion reversing valve 8, hydraulic cylinder 9, displacement transducer 10, electric control operation screen 11, check valve 12, cooler 13, liquid level liquid thermometer 14, fuel tank 15.Continuously adjusting to the flow velocity of abrasive Flow can be realized by electric control operation screen 11.Operating personnel can select the workpiece that suitable abrasive Flow flow velocity goes processing to need different polishings, with the processing effect being optimal.Pilot operated compound relief valve 4 can be with the operating pressure of stable hydraulic system.When hydraulic system needs to be stopped, 3YA power supplys, the pressure modulating opening connection fuel tank of pilot operated compound relief valve 4, hydraulic system off-load need to be only cut off.
Description
Technical field
The present invention is a kind of hydraulic power system, and in particular to a kind of speed stepless adjustable for abrasive Flow polishing machine
Hydraulic power system.
Background technology
Abrasive Flow polishing is that one kind precision for carrying out micro removal to metal or nonmetallic materials by extruding abrasive material adds
Work method, Precision Machining, deburring and rounding etc. can be carried out to accessory inner surface, outer surface, crossover sites etc., with up to
To the purpose of retrofit.The Part Surface Roughness that abrasive Flow Machining is crossed after testing is up to Ra0.05, deburring minimum-value aperture
Up to 0.2mm.
The patent majority on abrasive Flow polishing machine describe only the structure type of polishing machine at present, seldom introduce specific
Hydraulic power system.The abrasive fluid polishing machine of Application No. 201020540046.X and 201520705081.5 patent introduction
Structure is similar, is all that part is polished by way of matched moulds pressurize, but its hydraulic system is complex, and does not give
Go out detailed hydraulic system principle figure.The abrasive Flow polishing machine that most of patents are introduced can not realize the flow velocity tune to abrasive Flow
Section.If the flow velocity of abrasive Flow polishing machine abrasive Flow is too low, workpiece needs the overlong time polished, the operating efficiency drop of polishing machine
It is low.If the flow velocity of abrasive Flow is too high, workpiece polishing may be caused excessive, in some instances it may even be possible to workpiece of burning.
The content of the invention
The technical problem to be solved in the present invention is that existing grinder dynamical system is unstable, and is only grinder offer
Constant pressure, suitable abrasive Flow flow velocity can not be provided for different processing parts, it is impossible to the grinding effect being optimal.
To solve above technical problem, the invention provides a kind of speed-adjustable hydraulic power system.It is above-mentioned to realize
Purpose, the technical scheme is that：The tooth connection wheel pump 2 of motor 1, gear pump 2 connect check valve 3, and check valve 3 connects two oil
Road.One of oil circuit connects pilot operated compound relief valve 4, pressure gauge 6 also in parallel and pressure between pilot operated compound relief valve 4 and check valve 3
Power transmitter 5, the oil-out connection fuel tank 15 of pilot operated compound relief valve 4, the pressure modulating opening connection two-position four-way electricity of pilot operated compound relief valve 4
Magnet valve 7.Another oil circuit connection 3-position 4-way electro-hydraulic proportion reversing valve 8, the A ports of 3-position 4-way electro-hydraulic proportion reversing valve 8 connect
Connect the rodless cavity of hydraulic cylinder 9, the rod chamber of B ports connection liquid cylinder pressure 9.Displacement transducer 10 is fixed on the rodless cavity of hydraulic cylinder 9
End face, the position of the piston rod of hydraulic cylinder 9 can be monitored in real time.Liquid level liquid thermometer 14 connects fuel tank and pressure transmitter 6 can be with
On related data message Real-time Feedback to electric-control system operator control panel 11.
The device have the advantages that it is：(1) hydraulic power system provides stable high voltage by overflow valve for system, solution
The problem of certainly abrasive particle flow velocity is insufficient and unstable.(2) operating personnel can by operator control panel remote control hydraulic power system, from
And improve working environment.(3) the speed step-less adjustment of abrasive Flow can be realized, operating personnel can select most suitable abrasive Flow
Flow velocity, with the polishing effect being optimal.
Brief description of the drawings
Fig. 1 is a kind of speed-adjustable hydraulic power system schematic diagram of the present invention；
Fig. 2 is that hydraulic system obtains in 1YA electric, the operating diagram under the conditions of 2YA dead electricity；
Fig. 3 be hydraulic system in 1YA dead electricity, 2YA obtain it is electric under the conditions of operating diagram.
In figure：Motor 1, gear pump 2, check valve 3, overflow valve 4, pressure transmitter 5, pressure gauge 6, two-position four-way solenoid valve
7th, 3-position 4-way electro-hydraulic proportion reversing valve 8, hydraulic cylinder 9, displacement transducer 10, electric control operation screen 11, check valve 12, cooler
13rd, liquid level liquid thermometer 14, fuel tank 15.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described：
Operating personnel can obtain electric and dead electricity by electric control operation screen 11 remote control 1YA, 2YA, 3YA, can also be remote
The size of process control circulation 1YA and 2YA electric currents controls the flow stream velocity of electro-hydraulic proportional valve 8, so as to controlling the piston of hydraulic cylinder 9
The translational speed of bar, the translational speed of piston rod determine the flow velocity of abrasive Flow.During work, first setting circulation 1YA and 2YA electricity
The size of stream is so that it is determined that the flow velocity of abrasive Flow.
3YA often-have-electricity, the pressure modulating opening of pilot operated compound relief valve 7 are closed, hydraulic power system steady operation.
As shown in Figure 2.During work, 3YA obtains electric.1YA obtains electric, 2YA dead electricity, the A mouths and P of three-position four-way electromagnetic directional valve 8
Mouth connection, B mouths connect with T mouths.Motor 1 drives gear pump 2 to rotate, and gear pump 2 flows through check valve from the oil suction of fuel tank 15, hydraulic oil
3, the rodless cavity of hydraulic cylinder 9 is flowed into after the voltage stabilizing of pilot operated compound relief valve 4, piston rod moves right.In the rod chamber of hydraulic cylinder 9
Hydraulic oil backflow, flow through check valve 12 and cooler 13 and enter fuel tank 15.When the piston rod movement of hydraulic cylinder 9 is (living to Lmax
The extreme position that stopper rod moves right) when, the positional information of piston rod is fed back to electric control operation screen 11 by sensor 10, and work people
Member can be by controlling electric control operation screen 11 to cut off 1YA power supplys and connecting 2YA power supplys.
As shown in 3,1YA dead electricity 2YA obtains electric.The A mouths of three position four-way directional control valve 8 connect with T mouths, and B mouths connect with P mouths.
Motor 1 drives gear pump 2, and gear pump 2 flows through check valve 3 from the oil suction of fuel tank 15, hydraulic oil, by the voltage stabilizing of pilot operated compound relief valve 4
The rod chamber of hydraulic cylinder 9 is flowed into afterwards, and piston rod moves to opposite direction, and hydraulic oil flows back from the rodless cavity of hydraulic cylinder 9, flows through unidirectional
Valve 12 enters fuel tank 15 with cooler 13.When the piston rod movement of hydraulic cylinder 9, to Lmin, (piston rod is to the limit position of left movement
Put) when, the positional information of piston rod is fed back to electric control operation screen 11 by displacement transducer 10, and staff can pass through automatically controlled behaviour
Make the cut-out 2YA power supplys of screen 11 and connect 1YA power supplys, the piston rod of hydraulic cylinder 9 moves to opposite direction.
When end-of-job or work midway need pause, operating personnel can cut off 3YA electricity by electric control operation screen 11
Source, the pressure modulating opening of pilot operated compound relief valve 4 connect fuel tank 15, hydraulic system off-load.
Claims (4)
1. a kind of speed-adjustable hydraulic power system, it is characterised in that hydraulic power system is by motor 1, gear pump 2, list
Passed to valve 3, overflow valve 4, pressure gauge 6, two-position four-way solenoid valve 7,3-position 4-way electro-hydraulic proportion reversing valve 8, hydraulic cylinder 9, displacement
Sensor 10, electric control operation screen 11, check valve 12, cooler 13, liquid level gauge 14, fuel tank 15 form.
2. a kind of speed-adjustable hydraulic power system according to claim 1, it is characterised in that described motor 1 connects
Gear pump 2 is connect, gear pump 2 connects check valve 3, and check valve 3 connects two oil circuits, and one of oil circuit connects pilot operated compound relief valve
4, also connected between pilot operated compound relief valve 4 and check valve 3 pressure transmitter 5 and pressure gauge 6, the oil-out of pilot operated compound relief valve 4
Fuel tank is connected, the pressure modulating opening connection two-position four-way solenoid valve 7 of pilot operated compound relief valve 4, it is electro-hydraulic that another oil circuit connects 3-position 4-way
Proportional reversing valve 8, the rodless cavity of a port connection liquid cylinder pressure 9 of 3-position 4-way electro-hydraulic proportion reversing valve 8, another port
The rod chamber of connection liquid cylinder pressure 9.
A kind of 3. speed-adjustable hydraulic power system according to claim 1,2, it is characterised in that described automatically controlled behaviour
1YA, 2YA break-make and size of electric current can be controlled by making screen 11, and the stream to abrasive Flow can be realized by electric control operation screen 11
Speed continuously adjusts, and realizes remote control, improves working environment.
A kind of 4. speed-adjustable hydraulic power system according to claim 1,2, it is characterised in that hydraulic work system
When, 3YA often-have-electricity, the operating pressure of the stable hydraulic system of pilot operated compound relief valve 4,3YA power supplys are cut off, pilot operated compound relief valve 4
Pressure modulating opening connects fuel tank, hydraulic system off-load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709700.1A CN107401539A (en) | 2017-08-05 | 2017-08-05 | A kind of speed-adjustable hydraulic power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709700.1A CN107401539A (en) | 2017-08-05 | 2017-08-05 | A kind of speed-adjustable hydraulic power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401539A true CN107401539A (en) | 2017-11-28 |
Family
ID=60397141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710709700.1A Pending CN107401539A (en) | 2017-08-05 | 2017-08-05 | A kind of speed-adjustable hydraulic power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401539A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010023148A (en) * | 2008-07-16 | 2010-02-04 | Okuma Corp | Machine tool |
| CN203641174U (en) * | 2013-12-23 | 2014-06-11 | 刘薇娜 | Pressure and speed synchronous and composite controller for hydraulic cylinders of machine tool |
| CN103921217A (en) * | 2014-05-04 | 2014-07-16 | 长春理工大学 | On-line temperature correction compensation method for abrasive grain stream processing |
| CN203740415U (en) * | 2014-03-28 | 2014-07-30 | 江苏紫石机械制造有限公司 | Wireless remote controlled self-discharging power-driven hydraulic funnel |
| CN104828701A (en) * | 2014-11-25 | 2015-08-12 | 北汽福田汽车股份有限公司 | Hydraulic control system and crane therewith |
| CN207750315U (en) * | 2017-08-05 | 2018-08-21 | 苏州方德锐精密机电科技有限公司 | A kind of speed-adjustable hydraulic power system |
-
2017
- 2017-08-05 CN CN201710709700.1A patent/CN107401539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010023148A (en) * | 2008-07-16 | 2010-02-04 | Okuma Corp | Machine tool |
| CN203641174U (en) * | 2013-12-23 | 2014-06-11 | 刘薇娜 | Pressure and speed synchronous and composite controller for hydraulic cylinders of machine tool |
| CN203740415U (en) * | 2014-03-28 | 2014-07-30 | 江苏紫石机械制造有限公司 | Wireless remote controlled self-discharging power-driven hydraulic funnel |
| CN103921217A (en) * | 2014-05-04 | 2014-07-16 | 长春理工大学 | On-line temperature correction compensation method for abrasive grain stream processing |
| CN104828701A (en) * | 2014-11-25 | 2015-08-12 | 北汽福田汽车股份有限公司 | Hydraulic control system and crane therewith |
| CN207750315U (en) * | 2017-08-05 | 2018-08-21 | 苏州方德锐精密机电科技有限公司 | A kind of speed-adjustable hydraulic power system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171128 |