CN109424594A - A kind of Multi-cylinder control hydraulic system for wire stripper - Google Patents
A kind of Multi-cylinder control hydraulic system for wire stripper Download PDFInfo
- Publication number
- CN109424594A CN109424594A CN201710781286.5A CN201710781286A CN109424594A CN 109424594 A CN109424594 A CN 109424594A CN 201710781286 A CN201710781286 A CN 201710781286A CN 109424594 A CN109424594 A CN 109424594A
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- servo
- cylinder
- oil
- valve
- fuel tank
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- 239000002828 fuel tank Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 238000010079 rubber tapping Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 56
- 239000010720 hydraulic oil Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010992 reflux Methods 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of Multi-cylinders for wire stripper to control hydraulic system, including servo pump group and servo-cylinder, the bottom end of servo pump group is fixedly connected with the top of fuel tank, the oil inlet of servo pump group is fixedly connected by oil suction hard tube with fuel tank, the top side of fuel tank is respectively equipped with air cleaner, liquid level temperature controller and servo valve group, and the oil outlet of servo pump group is fixedly connected by oil drain hose with the oil inlet of servo valve group.The present invention is set there are three servo-cylinder, formed Chinese character pin-shaped, two servo-cylinders push up, and one pushes down on, workpiece is placed on bracket, three servo-cylinders are withstood on bracket jointly, and on a circumference, guarantee concentricity, displacement sensor is able to detect the adjustable height of hydraulic telescopic rod, liquid level liquid thermometer is able to detect the oil mass and oil temperature of the hydraulic oil in fuel tank, and vibration-proof pressure gauge is measured pressure oily in servo valve group by pressure tapping, prevents the excessive damage for causing equipment of oil pressure.
Description
Technical field
The present invention relates to a kind of hydraulic system, specially a kind of Multi-cylinder for wire stripper controls hydraulic system.
Background technique
With the development of machinery manufacturing industry, the application field of hydraulic-driven control technology is more and more wider, especially wire stripper
Requirement to synchronous drive control precision is higher and higher, in Hydraulic Power Transmission System, synchronously control using very universal but big
Flow, high-precision, the synchronously control of multi-execution component are always the technical issues that need to address in Hydraulic Industry, traditional liquid
Pressure system realizes that the high-precise synchronization control of multiple hydraulic cylinders has great difficulty, liquid due to liquid compression, leakage, damping feature
The oil pressure of hydraulic oil crosses conference damage equipment in pressure system, and the lifting that can not accurately detect the hydraulic stem of hydraulic cylinder is high
Degree, is easy to cause error when carrying out peeling processing, influences the quality of processing, causes economic loss, therefore we do this
It improves out, proposes that a kind of Multi-cylinder for wire stripper controls hydraulic system.
Summary of the invention
Conference damage equipment is crossed to solve the oil pressure of hydraulic oil in pressure system of the existing technology, and can not be accurate
The adjustable height for detecting the hydraulic stem of hydraulic cylinder is constantly easy to cause error carrying out peeling processing, influences the quality of processing
Defect, the present invention provide a kind of Multi-cylinder control hydraulic system for wire stripper.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of Multi-cylinder for wire stripper of the present invention controls hydraulic system, including servo pump group and servo-cylinder, described
The bottom end of servo pump group is fixedly connected with the top of fuel tank, and the oil inlet of the servo pump group is solid by oil suction hard tube and fuel tank
Fixed connection, the top side of the fuel tank is respectively equipped with air cleaner, liquid level temperature controller and servo valve group, the servo
The oil outlet of pump group is fixedly connected by oil drain hose with the oil inlet of servo valve group, and the top other side fixation of the fuel tank is set
There is return filter, the side of the fuel tank is respectively equipped with liquid level liquid thermometer and oil tank cleaning cap, the side of the servo valve group
If the flowline is fixedly connected by connecting tube with styletable straight coupling, the styletable straight coupling there are two flowline
Bottom end is equipped with diaphragm accumulator, and the diaphragm accumulator is fixedly connected by servo-cylinder valve block with servo-cylinder, described
The top of servo-cylinder valve block is respectively equipped with pressure measuring tie-in, pressure sensor and electromagnet cut off valve, the top of the electromagnet cut off valve
End is equipped with servo valve, and the side of the servo-cylinder is equipped with displacement sensor.
Further, the servo pump group is made of motor shock absorption pad, motor, shaft coupling and constant pressure variable plunger pump, institute
It states fuel tank and is fixedly connected by motor shock absorption pad with the bottom end of motor, the output shaft of the motor passes through shaft coupling and constant-pressure variable
The input shaft of plunger pump is sequentially connected, the motor by motor switch and constant pressure variable plunger pump by plunger switch pump with
Power supply is electrically connected.
Further, the servo valve group by check valve, Superimposed relief valve, high pressure filter, two position four-way solenoid valves,
Vibration-proof pressure gauge and pressure tapping composition, the servo valve group is by check valve, Superimposed relief valve, high pressure filter, two
Four way solenoid valve, vibration-proof pressure gauge and pressure tapping composition, the surface of the servo valve group is equipped with vibration-proof pressure gauge, described resistance to
Power pressure gauge is connect with pressure tapping.
Further, the servo valve group and oil drain hose are connected with check valve, and other between servo pump group and check valve
It is connected to Superimposed relief valve.
Further, the high pressure filter is connected to two position four-way solenoid valves, two position four-way solenoid valve with it is fuel-displaced
Pipe connection.
Further, the quantity of the servo-cylinder is three, and formation is Chinese character pin-shaped, and two servo-cylinders push up, one
It is a to push down on.
Further, three servo-cylinder sides are equipped with hydraulic telescopic rod, and the other end is equipped with displacement sensor.
Further, the junction of the diaphragm accumulator and servo-cylinder valve block is equipped with combination sealing pad.
Compared with prior art, the Multi-cylinder control the invention has the following beneficial effects: this kind for wire stripper is hydraulic
System, three servo-cylinders, formation is Chinese character pin-shaped, and two servo-cylinders push up, and one pushes down on, and workpiece is placed on bracket, and three
A servo-cylinder is withstood on bracket jointly, and on a center of circle, guarantees concentricity, and displacement sensor is able to detect hydraulically extensible
The adjustable height of bar, liquid level liquid thermometer are able to detect the oil mass and oil temperature of the hydraulic oil in fuel tank, and vibration-proof pressure gauge passes through pressure
Meter connector measures pressure oily in servo valve group, prevents the excessive damage for causing equipment of oil pressure, high pressure filter and two four-ways
Solenoid valve connection, two position four-way solenoid valves are connected to flowline, and high pressure filter can cross the impurity in oil strain, prevent impurity into
Enter and equipment is damaged into equipment, when the pressure in system increases, portion of energy is can be absorbed in diaphragm accumulator, is protected
The pressure for demonstrate,proving whole system is normal, and servo petrol station is equipped with multiple solenoid valves, also adds a solenoid valve compensation device, makes oil
Pressure thrust becomes linear relationship, and the algorithm in solenoid valve compensation device realizes control, more accurate, synchronous.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the servo pump group of the Multi-cylinder control hydraulic system for wire stripper of the present invention；
Fig. 2 is a kind of structural schematic diagram of the servo-cylinder of the Multi-cylinder control hydraulic system for wire stripper of the present invention；
Fig. 3 is a kind of facing structure signal of the servo-cylinder of the Multi-cylinder control hydraulic system for wire stripper of the present invention
Figure；
Fig. 4 is a kind of schematic diagram of the Multi-cylinder control hydraulic system for wire stripper of the present invention；
Fig. 5 is a kind of open loop-of the solenoid valve compensation device of the Multi-cylinder control hydraulic system for wire stripper of the present invention
Closed loop complex controll block diagram.
In figure: 1, fuel tank；2, servo pump group；3, air cleaner；4, oil drain hose；5, oil suction hose；6, oil return filter
Device；7, servo valve group；8, liquid level temperature controller；9, liquid level liquid thermometer；10, oil tank cleaning cap；11, hydraulic telescopic rod；12, it watches
Take oil cylinder；13, servo-cylinder valve block；14, electromagnet cut off valve；15, servo valve；16, diaphragm accumulator；17, styletable is straight-through connects
Head；18, pressure sensor；19, pressure measuring tie-in；20, displacement sensor；21, connecting tube.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
As shown in Figs. 1-5, a kind of Multi-cylinder for wire stripper controls hydraulic system, including servo pump group 2 and servo oil
The bottom end of cylinder 12, servo pump group 2 is fixedly connected with the top of fuel tank 1, and the oil inlet of servo pump group 2 passes through oil suction hard tube 5 and oil
Case 1 is fixedly connected, and the top side of fuel tank 1 is respectively equipped with air cleaner 3, liquid level temperature controller 8 and servo valve group 7, is watched
The oil outlet for taking pump group 2 is fixedly connected by oil drain hose 4 with the oil inlet of servo valve group 7, and the top other side of fuel tank 1 is solid
Surely it is equipped with return filter 6, the side of fuel tank 1 is respectively equipped with liquid level liquid thermometer 9 and oil tank cleaning cap 10, and the one of servo valve group 7
Side is set there are two flowline, and flowline is fixedly connected by connecting tube 21 with styletable straight coupling 17, styletable straight coupling 17
Bottom end is equipped with diaphragm accumulator 16, and diaphragm accumulator 16 is fixedly connected by servo-cylinder valve block 13 with servo-cylinder 12,
The top of servo-cylinder valve block 13 is respectively equipped with pressure measuring tie-in 19, pressure sensor 18 and electromagnet cut off valve 14, electromagnet cut off valve
14 top is equipped with servo valve 15, and the side of servo-cylinder 12 is equipped with displacement sensor 20.
Wherein, servo pump group 2 is made of motor shock absorption pad, motor, shaft coupling and constant pressure variable plunger pump, and fuel tank 1 passes through
Motor shock absorption pad is fixedly connected with the bottom end of motor, and the output shaft of motor passes through the input shaft of shaft coupling and constant pressure variable plunger pump
Transmission connection, motor are electrically connected with the power supply by motor switch and constant pressure variable plunger pump by plunger switch pump, motor
Resilient cushion reduces the vibration of motor, drives constant pressure variable plunger pump by motor, constant pressure variable plunger pump will by oil suction hard tube 5
Oil in fuel tank 1 is sucked out.
Wherein, servo valve group 7 is by check valve, Superimposed relief valve, high pressure filter, two position four-way solenoid valves, resistance to jolt-squeeze
Power table and pressure tapping composition, the servo valve group is by check valve, Superimposed relief valve, high pressure filter, two four energizations
Magnet valve, vibration-proof pressure gauge and pressure tapping composition, the surface of the servo valve group are equipped with vibration-proof pressure gauge, the endurance pressure
Table is connect with pressure tapping, and vibration-proof pressure gauge measures pressure oily in servo valve group 7 by pressure tapping, prevents oil pressure mistake
The damage of equipment is caused greatly.
Wherein, servo valve group 7 and oil drain hose 4 are connected with check valve, and between servo pump group 2 and check valve it is other be connected to it is folded
Add formula overflow valve, by the inlet of check valve control oil, Superimposed relief valve can prevent the inlet of oil excessive.
Wherein, high pressure filter is connected to two position four-way solenoid valves, and two position four-way solenoid valves are connected to flowline, and height presses through
Filter can cross the impurity in oil strain, prevent impurity from entering in equipment and damage to equipment.
Wherein, the quantity of servo-cylinder 12 be three, and formed it is Chinese character pin-shaped, two servo-cylinders 12 push up, one to
Under push away, workpiece is placed on bracket, three servo-cylinders 12 are withstood on bracket jointly, and on a circumference, guarantee concentricity.
Wherein, three 12 sides of servo-cylinder are equipped with hydraulic telescopic rod 11, and the other end is equipped with displacement sensor 20, detect liquid
The distance of stretch out and draw back for pressing telescopic rod 11, improves the accuracy of lifting.
Wherein, the junction of diaphragm accumulator 16 and servo-cylinder valve block 13 is equipped with combination sealing pad, prevents oil leak,
Improve leakproofness.
It should be noted that the present invention is a kind of Multi-cylinder control hydraulic system for wire stripper, when specific, electricity is opened
Machine drives constant pressure variable plunger pump work by the rotation of the output shaft of motor, draws the oil in fuel tank 1 by oil suction hose 5,
Then the oil of absorption is drained into servo valve group 7 by oil drain hose 4, return filter 6 can filter the hydraulic oil of reflux
In impurity, servo valve group 7 and oil drain hose 4 be connected with check valve, and other between servo pump group 2 and check valve is connected to superposing type
Overflow valve controls oil liquid circulating direction by check valve, and Superimposed relief valve can prevent the inlet of oil excessive, high-pressure filteration
Device can cross the impurity in oil strain, prevent impurity from entering in equipment and damage to equipment, and liquid level liquid thermometer 9 detects fuel tank 1
Interior oil mass and oil temperature, by liquid level temperature controller 8 control fuel tank 1 in oil mass and oil temperature, flowline by connecting tube with
Styletable straight coupling 17 is fixedly connected, and drives hydraulic oil to enter in diaphragm accumulator 16 by servo pump group 2, servo-cylinder
12 are equipped with multiple solenoid valves, increase a solenoid valve compensation device, so that oil pressure thrust is become linear relationship, pass through solenoid valve
The algorithm of compensation device controls the lifting of hydraulic telescopic rod 11, and the lifting that displacement sensor 20 detects hydraulic telescopic rod 11 is high
Degree makes to adjust more accurate.
Wherein the algorithm of solenoid valve compensation device is, if open-cycle controller is Gcs (s), closed loop controller is Gcd (s), than
Example solenoid valve is Gp (s), and output quantity is Y (s), and target value is R (s), derives the corresponding transmitting letter of complex controll model in Fig. 5
Number,If closed loop controller Gcd (s)=0, become open-loop control system,If open-cycle controller Gcs (s)=0, become closed-loop control system,
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of Multi-cylinder for wire stripper controls hydraulic system, including servo pump group (2) and servo-cylinder (12), feature
It is, the bottom end of the servo pump group (2) is fixedly connected with the top of fuel tank (1), and the oil inlet of the servo pump group (2) passes through
Oil suction hard tube (5) is fixedly connected with fuel tank (1), and the top side of the fuel tank (1) is respectively equipped with air cleaner (3), liquid level
The oil outlet of liquid temperature controller (8) and servo valve group (7), the servo pump group (2) passes through oil drain hose (4) and servo valve group
(7) oil inlet is fixedly connected, and the top other side of the fuel tank (1) is fixed with return filter (6), the fuel tank (1)
Side be respectively equipped with liquid level liquid thermometer (9) and oil tank cleaning cap (10), the side of the servo valve group (7) sets that there are two fuel-displaced
Pipe, the flowline are fixedly connected by connecting tube (21) with styletable straight coupling (17), the styletable straight coupling (17)
Bottom end is equipped with diaphragm accumulator (16), and the diaphragm accumulator (16) passes through servo-cylinder valve block (13) and servo-cylinder
(12) be fixedly connected, the top of the servo-cylinder valve block (13) be respectively equipped with pressure measuring tie-in (19), pressure sensor (18) and
The top of electromagnet cut off valve (14), the electromagnet cut off valve (14) is equipped with servo valve (15), the side of the servo-cylinder (12)
Equipped with displacement sensor (20).
2. a kind of Multi-cylinder for wire stripper according to claim 1 controls hydraulic system, which is characterized in that described to watch
It takes pump group (2) to be made of motor shock absorption pad, motor, shaft coupling and constant pressure variable plunger pump, the fuel tank (1) passes through motor shock absorption
Pad is fixedly connected with the bottom end of motor, and the output shaft of the motor is driven by the input shaft of shaft coupling and constant pressure variable plunger pump
Connection, the motor are electrically connected with the power supply by motor switch and constant pressure variable plunger pump by plunger switch pump.
3. a kind of Multi-cylinder for wire stripper according to claim 1 controls hydraulic system, which is characterized in that described to watch
Valve group (7) is taken to be connect by check valve, Superimposed relief valve, high pressure filter, two position four-way solenoid valves, vibration-proof pressure gauge and pressure gauge
The surface of head composition, the servo valve group (7) is equipped with vibration-proof pressure gauge, and the endurance pressure gauge is connect with pressure tapping.
4. a kind of Multi-cylinder for wire stripper according to claim 1 controls hydraulic system, which is characterized in that described to watch
It takes valve group (7) and oil drain hose (4) and is connected with check valve, and side is connected to superposing type overflow between servo pump group (2) and check valve
Valve.
5. a kind of Multi-cylinder for wire stripper according to claim 3 controls hydraulic system, which is characterized in that the height
It presses through filter to be connected to two position four-way solenoid valves, two position four-way solenoid valve is connected to flowline.
6. a kind of Multi-cylinder for wire stripper according to claim 1 controls hydraulic system, which is characterized in that described to watch
The quantity for taking oil cylinder (12) is three, and formation is Chinese character pin-shaped, and two servo-cylinders (12) push up, and one pushes down on.
7. a kind of Multi-cylinder for wire stripper according to claim 6 controls hydraulic system, which is characterized in that three institutes
The hydraulic telescopic rod (11) that servo-cylinder (12) side is equipped with is stated, the other end is equipped with displacement sensor (20).
8. a kind of Multi-cylinder for wire stripper according to claim 1 controls hydraulic system, which is characterized in that it is described every
The junction of membrane type accumulator (16) and servo-cylinder valve block (13) is equipped with combination sealing pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781286.5A CN109424594A (en) | 2017-09-01 | 2017-09-01 | A kind of Multi-cylinder control hydraulic system for wire stripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781286.5A CN109424594A (en) | 2017-09-01 | 2017-09-01 | A kind of Multi-cylinder control hydraulic system for wire stripper |
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| Publication Number | Publication Date |
|---|---|
| CN109424594A true CN109424594A (en) | 2019-03-05 |
Family
ID=65513069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710781286.5A Pending CN109424594A (en) | 2017-09-01 | 2017-09-01 | A kind of Multi-cylinder control hydraulic system for wire stripper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109424594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178009A (en) * | 2020-09-29 | 2021-01-05 | 燕山大学 | Electro-hydraulic actuator performance test experiment table |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611259A (en) * | 1994-10-25 | 1997-03-18 | Nisshinbo Industries, Inc. | Hydraulic circuit for driving a ram of hydraulic press |
| JP2003074510A (en) * | 2001-09-04 | 2003-03-12 | Iseki & Co Ltd | Hydraulic circuit of traveling unit |
| CN202391836U (en) * | 2011-12-15 | 2012-08-22 | 常州精瑞自动化装备技术有限公司 | Hydraulic system for six-freedom-degree parallel robot |
| CN205136185U (en) * | 2015-11-25 | 2016-04-06 | 日照海卓液压有限公司 | Synchronous initiative hydraulic control system of many hydro -cylinders rigidity |
| CN206201549U (en) * | 2016-08-31 | 2017-05-31 | 无锡福艾德自动化科技有限公司 | A kind of passive four-corner leveling system based on servo hydraulic system |
| CN207278603U (en) * | 2017-09-01 | 2018-04-27 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder for wire stripper controls hydraulic system |
-
2017
- 2017-09-01 CN CN201710781286.5A patent/CN109424594A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611259A (en) * | 1994-10-25 | 1997-03-18 | Nisshinbo Industries, Inc. | Hydraulic circuit for driving a ram of hydraulic press |
| JP2003074510A (en) * | 2001-09-04 | 2003-03-12 | Iseki & Co Ltd | Hydraulic circuit of traveling unit |
| CN202391836U (en) * | 2011-12-15 | 2012-08-22 | 常州精瑞自动化装备技术有限公司 | Hydraulic system for six-freedom-degree parallel robot |
| CN205136185U (en) * | 2015-11-25 | 2016-04-06 | 日照海卓液压有限公司 | Synchronous initiative hydraulic control system of many hydro -cylinders rigidity |
| CN206201549U (en) * | 2016-08-31 | 2017-05-31 | 无锡福艾德自动化科技有限公司 | A kind of passive four-corner leveling system based on servo hydraulic system |
| CN207278603U (en) * | 2017-09-01 | 2018-04-27 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder for wire stripper controls hydraulic system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178009A (en) * | 2020-09-29 | 2021-01-05 | 燕山大学 | Electro-hydraulic actuator performance test experiment table |
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