CN105402200A - Integrated electro hydraulic control device - Google Patents
Integrated electro hydraulic control device Download PDFInfo
- Publication number
- CN105402200A CN105402200A CN201511002552.7A CN201511002552A CN105402200A CN 105402200 A CN105402200 A CN 105402200A CN 201511002552 A CN201511002552 A CN 201511002552A CN 105402200 A CN105402200 A CN 105402200A
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- Prior art keywords
- oil
- oil duct
- duct
- way
- valve
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Classifications
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- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and pump
-
- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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 provides an integrated electro hydraulic control device, and aims to solve the problem that all the devices in an electro hydraulic control system are integrated on an integrated block without being connected through a pipeline. The key point lies in that two oiling oil channels are formed in the integrated block from two oil openings of a bi-directional gear pump to the right till the right edge of the integrated block; a hydraulic cylinder is fixed on the right edge of the integrated block; two oil openings of the hydraulic cylinder are in abutting joint with the two oiling oil channels of the right edge of the integrated block; two one-way valves are sequentially arranged on each oiling oil channel; loading openings of balance valves are connected on the oiling oil channel between a second one-way valve and the hydraulic cylinder; a three-way type oil return oil channel is formed in the integrated block; upper and lower oil channel openings of a longitudinal oil channel of the three-way type oil return oil channel are respectively connected with oil outlets of the two balance valves; a horizontal oil channel of the three-way type oil return oil channel is connected at an oil discharge opening of the bi-directional gear pump; an oil tank is fixed on the lower edge of the integrated block; and the oil channels adopt a river channel type. The integrated electro hydraulic control device has the positive benefits that the whole device is compact, hydraulic oil is isolated from air, and the reliability of the electro hydraulic control system is remarkably improved.
Description
Technical field
The present invention relates to a kind of electrohydraulic control system, is a kind of integrating electro liquid control system specifically.
Background technique
Traditional electrohydraulic control system is, hydraulic oil pipeline is by what form together with the equipment connections such as oil hydraulic pump, hydrovalve, oil hydraulic cylinder, fuel tank and hydraulic services, and namely each equipment is that discrete state independently exists.Fuel tank is used to storage liquid force feed and heat radiation etc., and when hydraulic work system, the liquid level of fuel tank can change, so general fuel tank is provided with breathing equipment with air and communicates, such impurity easily enters oil system, causes the faults such as the bite of hydrovalve, poor reliability.In occasions such as electrohydraulic control system control valve, air doors, there is the problems such as bulky, difficult in maintenance.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of integrating electro-hydraulic control gear, this device is each integration of equipments of electrohydraulic control system on an integrated package, between these equipment by without pipeline connect, make whole device compact, sealing.
The object of the present invention is achieved like this: double-direction gearpump is fixed on the left of integrated package, from double-direction gearpump two go out/inlet port P1 and P2, on integrated package, open oil oil duct and P2 of P1 to the right to oil oil duct, these two oil ducts that oil all reach the right hand edge of integrated package, two oil duct junctions that oil are formed at integrated package right hand edge, oil hydraulic cylinder is fixed on integrated bulk right hand edge, and two hydraulic fluid ports of oil hydraulic cylinder dock with two oil duct junctions that oil of integrated bulk right hand edge;
Each oil duct that oils connects the first and second one-way valves successively, and wherein the first one-way valve has two oil outlets, and two through being connected on of oil outlet oil on oil duct; What the filler opening of the second one-way valve was connected on double-direction gearpump side oils on oil duct, and what the oil outlet of the second one-way valve was connected on oil hydraulic cylinder side oils on oil duct; The load port of equilibrium valve is connected on and oils on oil duct between the second one-way valve and oil hydraulic cylinder;
The two ends of the first pilot oil duct are that P1 oils the oil duct that the pilot port of equilibrium valve on oil duct and P2 oil on oil duct between two one-way valves respectively; The two ends of the second pilot oil duct are that P2 oils the oil duct that the pilot port of equilibrium valve on oil duct and P1 oil on oil duct between two one-way valves respectively;
Integrated package is opened Three way type oil return oil duct, oil between oil duct at two, 2. the upper and lower oil duct junction of longitudinal oil duct of Three way type oil return oil duct receives the oil outlet of two equilibrium valves respectively, and the horizontal oil duct left end oil duct junction of Three way type oil return oil duct is connected on the drain tap of double-direction gearpump; The upper orifice of fuel sucking pipe, the filler opening of two the first one-way valves, the oil outlet of two relief valves are connected on the horizontal oil duct of Three way type oil return oil duct successively;
Arrange short circuit oil duct each oiling between oil duct and Three way type oil return oil duct, short circuit oil duct arranges pilot operated compound relief valve, the filler opening of relief valve is connected on and oils on oil duct between the first and second one-way valves;
At the lower limb fixed oil tank of integrated package, the lower limb of integrated package becomes the case lid of fuel tank, and the lower end mouth of fuel sucking pipe inserts fuel tank;
Above-mentioned all oil ducts are river channel type; All valves are fixed on integrated package.
When double-direction gearpump rotates forward, double-direction gearpump P1 mouth is oil outlet, and P2 mouth is inlet port, and hydraulic oil enters P1 and to oil oil duct, successively through two oil outlets and second one-way valve of the first one-way valve, enters oil hydraulic cylinder rodless cavity, promotes cylinder piston rod and stretches out.This hydraulic oil enter simultaneously P1 oil the relief valve filler opening of oil duct and P2 oil oil duct equilibrium valve pilot port 3..
After piston rod stretches out, hydraulic oil in oil hydraulic cylinder rod chamber enters P2 and to oil oil duct, be applied to the load port of the equilibrium valve of this oil duct 1., this equilibrium valve main valve plug is opened under pilot port pressure 3. and load port pressure acting in conjunction 1., 2. 1. its load port communicated with oil outlet, and the oil hydraulic oil of oil duct of P2 enters Three way type oil return oil duct through this equilibrium valve; Be applied to P2 to oil the filler opening of the first one-way valve on oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P2 mouth of double-direction gearpump.Oil hydraulic cylinder rod chamber volume is less than the volume of rodless cavity in general, and then oil cylinder oil pump capacity is less than oil inlet quantity, and double-direction gearpump drain tap P2 and fuel sucking pipe fill into system from fuel tank oil suction.
After piston rod all stretches out and puts in place, the oil hydraulic fluid pressure of oil duct of P1 raises, when be elevated to P1 oil oil duct the setting pressure of relief valve time, the main valve plug of relief valve is opened, the hydraulic oil of oil duct of being oiled by P1 lets out short circuit oil duct and oil return oil duct successively, gets back to double-direction gearpump P2 mouth.
Double-direction gearpump reverses, and P2 mouth is oil outlet, and P1 mouth is inlet port, and hydraulic oil enters P2 and to oil oil duct, successively through two oil outlets and second one-way valve of the second one-way valve, enters oil hydraulic cylinder rod chamber, promotes cylinder piston rod and retracts.This hydraulic oil enter simultaneously P2 oil oil duct relief valve filler opening and P1 oil oil duct equilibrium valve pilot port 3..
After piston rod is retracted, hydraulic oil in oil hydraulic cylinder rodless cavity enters P1 and to oil oil duct, act on the load port of the equilibrium valve of this oil duct 1., this equilibrium valve main valve plug is opened under pilot port pressure 3. and load port pressure acting in conjunction 1., 2. 1. its load port communicated with oil outlet, and the oil hydraulic oil of oil duct of P1 enters Three way type oil return oil duct through this equilibrium valve; Be applied to P1 to oil the filler opening of the first one-way valve of oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P1 mouth of double-direction gearpump.Because oil cylinder oil pump capacity is greater than oil inlet quantity, unnecessary oil mass enters fuel tank from fuel sucking pipe.
After piston rod is all retracted and is put in place, the oil hydraulic fluid pressure of oil duct of P2 raises, when be elevated to P2 oil the setting pressure of relief valve of oil duct time, the main valve plug of relief valve is opened, P2 is oiled oil duct hydraulic oil let out short circuit oil duct and oil return oil duct successively, get back to double-direction gearpump P1 mouth.
Compared with prior art, good effect of the present invention is: whole device is compact, does not lose power, is convenient to install and transport; Impurity in air can not enter in hydraulic oil, and hydraulic oil is not oxidizable simultaneously, avoids the problem that hydraulic oil is aging.In the action such as control valve, air door occasion infrequently, significantly improve the reliability of electrohydraulic control system.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
Double-direction gearpump 2 is fixed on the left of integrated package 3, from double-direction gearpump two go out/inlet port P1 and P2, on integrated package, open oil oil duct 4 and P2 of P1 to the right to oil oil duct 4 ', these two oil ducts that oil all reach the right hand edge 31 of integrated package, two oil duct junctions that oil are formed at integrated package right hand edge, oil hydraulic cylinder 10 is fixed on integrated bulk right hand edge, and two hydraulic fluid ports 101 of oil hydraulic cylinder dock with two oil duct junctions that oil of integrated bulk right hand edge;
On P1 oils oil duct, connect the first one-way valve 5 and the second one-way valve 7 successively, wherein 2. the first one-way valve has two oil outlets, and two through being connected on of oil outlet oil on oil duct; What 1. the filler opening of the second one-way valve was connected on double-direction gearpump side oils on oil duct, and what 2. the oil outlet of the second one-way valve was connected on oil hydraulic cylinder side oils on oil duct; 1. the load port of equilibrium valve 9 is connected on and oils on oil duct between the second one-way valve and oil hydraulic cylinder; On P2 oils oil duct, connect the first one-way valve 5 ' and the second one-way valve 7 ' successively, wherein 2. the first one-way valve has two oil outlets, and two through being connected on of oil outlet oil on oil duct; What 1. the filler opening of the second one-way valve was connected on double-direction gearpump side oils on oil duct, and what 2. the oil outlet of the second one-way valve was connected on oil hydraulic cylinder side oils on oil duct; The load port of equilibrium valve 9 ' is 1. connected on and oils on oil duct between the second one-way valve and oil hydraulic cylinder;
The two ends of the first pilot oil duct 11 be respectively P1 oil equilibrium valve on oil duct pilot port 3. and P2 oil oil duct two one-way valves between oil duct; The two ends of the second pilot oil duct 11 ' be respectively P2 oil equilibrium valve on oil duct pilot port 3. and P1 oil oil duct two one-way valves between oil duct;
Integrated package is opened Three way type oil return oil duct 8, oil between oil duct at two, 2. the upper and lower oil duct junction of longitudinal oil duct 82 of Three way type oil return oil duct receives the oil outlet of two equilibrium valves respectively, and the horizontal oil duct 81 left end oil duct junction of Three way type oil return oil duct is connected on the drain tap P3 of double-direction gearpump; The upper orifice of fuel sucking pipe 14, the filler opening of two the first one-way valves are 1., 2. the oil outlet of two relief valves be connected on the horizontal oil duct of Three way type oil return oil duct successively;
Oil between oil duct and Three way type oil return oil duct at P1 and arrange short circuit oil duct 12, short circuit oil duct arranges pilot operated compound relief valve 6,1. the filler opening of relief valve 6 is connected on and oils on oil duct between the first and second one-way valves; Oil between oil duct and Three way type oil return oil duct at P2 and arrange short circuit oil duct 12 ', short circuit oil duct arranges pilot operated compound relief valve 6 ', the filler opening of relief valve 6 ' is 1. connected on and oils on oil duct between the first and second one-way valves;
At the lower limb fixed oil tank 13 of integrated package, the lower limb of integrated package becomes the case lid of fuel tank, and the lower end mouth of fuel sucking pipe 14 inserts fuel tank;
Above-mentioned all oil ducts are river channel type; All valves are fixed on integrated package.
When motor 1 drives double-direction gearpump to rotate forward, double-direction gearpump P1 mouth is oil outlet, and P2 mouth is inlet port, hydraulic oil enters P1 and to oil oil duct, successively through two oil outlets and second one-way valve of the first one-way valve, enter oil hydraulic cylinder rodless cavity, promote cylinder piston rod 102 and stretch out.This hydraulic oil enter simultaneously P1 oil the relief valve filler opening of oil duct and P2 oil oil duct equilibrium valve pilot port 3..
After piston rod stretches out, hydraulic oil in oil hydraulic cylinder rod chamber enters P2 and to oil oil duct, be applied to the load port of the equilibrium valve of this oil duct 1., this equilibrium valve main valve plug is opened under pilot port pressure 3. and load port pressure acting in conjunction 1., 2. 1. its load port communicated with oil outlet, and the oil hydraulic oil of oil duct of P2 enters Three way type oil return oil duct through this equilibrium valve; Be applied to P2 to oil the filler opening of the first one-way valve on oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P2 mouth of double-direction gearpump.Oil hydraulic cylinder rod chamber volume is less than the volume of rodless cavity in general, and then oil cylinder oil pump capacity is less than oil inlet quantity, and double-direction gearpump drain tap P2 and fuel sucking pipe fill into system from fuel tank oil suction.
After piston rod all stretches out and puts in place, the oil hydraulic fluid pressure of oil duct of P1 raises, when be elevated to P1 oil oil duct the setting pressure of relief valve time, the main valve plug of relief valve is opened, the hydraulic oil of oil duct of being oiled by P1 lets out short circuit oil duct and oil return oil duct successively, gets back to double-direction gearpump P2 mouth.
Motor 1 drives double-direction gearpump to reverse, and P2 mouth is oil outlet, and P1 mouth is inlet port, and hydraulic oil enters P2 and to oil oil duct, successively through two oil outlets and second one-way valve of the second one-way valve, enters oil hydraulic cylinder rod chamber, promotes cylinder piston rod and retracts.This hydraulic oil enter simultaneously P2 oil oil duct relief valve filler opening and P1 oil oil duct equilibrium valve pilot port 3..
After piston rod is retracted, hydraulic oil in oil hydraulic cylinder rodless cavity enters P1 and to oil oil duct, act on the load port of the equilibrium valve of this oil duct 1., this equilibrium valve main valve plug is opened under pilot port pressure 3. and load port pressure acting in conjunction 1., 2. 1. its load port communicated with oil outlet, and the oil hydraulic oil of oil duct of P1 enters Three way type oil return oil duct through this equilibrium valve; Be applied to P1 to oil the filler opening of the first one-way valve of oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P1 mouth of double-direction gearpump.Because oil cylinder oil pump capacity is greater than oil inlet quantity, unnecessary oil mass enters fuel tank from fuel sucking pipe.
After piston rod is all retracted and is put in place, the oil hydraulic fluid pressure of oil duct of P2 raises, when be elevated to P2 oil the setting pressure of relief valve of oil duct time, the main valve plug of relief valve is opened, P2 is oiled oil duct hydraulic oil let out short circuit oil duct and oil return oil duct successively, get back to double-direction gearpump P1 mouth.
Claims (1)
1. an integrating electro-hydraulic control gear, it is characterized in that: double-direction gearpump is fixed on the left of integrated package, from double-direction gearpump two go out/inlet port P1 and P2, on integrated package, open oil oil duct and P2 of P1 to the right to oil oil duct, these two oil ducts that oil all reach the right hand edge of integrated package, two oil duct junctions that oil are formed at integrated package right hand edge, oil hydraulic cylinder is fixed on integrated bulk right hand edge, and two hydraulic fluid ports of oil hydraulic cylinder dock with two oil duct junctions that oil of integrated bulk right hand edge;
Each oil duct that oils connects the first and second one-way valves successively, and wherein the first one-way valve has two oil outlets, and two through being connected on of oil outlet oil on oil duct; What the filler opening of the second one-way valve was connected on double-direction gearpump side oils on oil duct, and what the oil outlet of the second one-way valve was connected on oil hydraulic cylinder side oils on oil duct; The load port of equilibrium valve is connected on and oils on oil duct between the second one-way valve and oil hydraulic cylinder;
The two ends of the first pilot oil duct are that P1 oils the oil duct that the pilot port of equilibrium valve on oil duct and P2 oil on oil duct between two one-way valves respectively; The two ends of the second pilot oil duct are that P2 oils the oil duct that the pilot port of equilibrium valve on oil duct and P1 oil on oil duct between two one-way valves respectively;
Integrated package is opened Three way type oil return oil duct, oil between oil duct at two, 2. the upper and lower oil duct junction of longitudinal oil duct of Three way type oil return oil duct receives the oil outlet of two equilibrium valves respectively, and the horizontal oil duct left end oil duct junction of Three way type oil return oil duct is connected on the drain tap of double-direction gearpump; The upper orifice of fuel sucking pipe, the filler opening of two the first one-way valves, the oil outlet of two relief valves are connected on the horizontal oil duct of Three way type oil return oil duct successively;
Arrange short circuit oil duct each oiling between oil duct and Three way type oil return oil duct, short circuit oil duct arranges pilot operated compound relief valve, the filler opening of relief valve is connected on and oils on oil duct between the first and second one-way valves;
At the lower limb fixed oil tank of integrated package, the lower limb of integrated package becomes the case lid of fuel tank, and the lower end mouth of fuel sucking pipe inserts fuel tank;
Above-mentioned all oil ducts are river channel type; All valves are fixed on integrated package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002552.7A CN105402200A (en) | 2015-12-29 | 2015-12-29 | Integrated electro hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002552.7A CN105402200A (en) | 2015-12-29 | 2015-12-29 | Integrated electro hydraulic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402200A true CN105402200A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002552.7A Pending CN105402200A (en) | 2015-12-29 | 2015-12-29 | Integrated electro hydraulic control device |
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| CN (1) | CN105402200A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671144B1 (en) * | 1990-12-28 | 1994-10-21 | Faivre Duboz Denis | DEVICE FOR CONTROLLING A SELF-CONTAINED CYLINDER. |
| EP1162375A2 (en) * | 2000-06-06 | 2001-12-12 | HOERBIGER FLUIDTECHNIK GmbH | Actuation arrangement for swivelling parts of vehicles |
| CN1709757A (en) * | 2004-06-18 | 2005-12-21 | 容海因里希股份公司 | Drive device driven by pressure medium, in particular for vehicle steering apparatus |
| CN2753915Y (en) * | 2004-12-31 | 2006-01-25 | 杭州和利时自动化有限公司 | Self-tolerant electrohydraulic actuator and its integrated oil way block |
| CN200998740Y (en) * | 2006-12-31 | 2008-01-02 | 江苏金方圆数控机床有限公司 | Numerical control electric-hydraulic servo lead bender |
| CN101749300A (en) * | 2009-12-18 | 2010-06-23 | 沈阳东北电力调节技术有限公司 | Integrating electro-hydraulic actuator |
| CN101749299A (en) * | 2009-12-18 | 2010-06-23 | 沈阳东北电力调节技术有限公司 | Integrating electro-hydraulic servo actuator |
| CN205876853U (en) * | 2015-12-29 | 2017-01-11 | 沈阳东北电力调节技术有限公司 | Integrated type electro -hydraulic control device |
-
2015
- 2015-12-29 CN CN201511002552.7A patent/CN105402200A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671144B1 (en) * | 1990-12-28 | 1994-10-21 | Faivre Duboz Denis | DEVICE FOR CONTROLLING A SELF-CONTAINED CYLINDER. |
| EP1162375A2 (en) * | 2000-06-06 | 2001-12-12 | HOERBIGER FLUIDTECHNIK GmbH | Actuation arrangement for swivelling parts of vehicles |
| CN1709757A (en) * | 2004-06-18 | 2005-12-21 | 容海因里希股份公司 | Drive device driven by pressure medium, in particular for vehicle steering apparatus |
| CN2753915Y (en) * | 2004-12-31 | 2006-01-25 | 杭州和利时自动化有限公司 | Self-tolerant electrohydraulic actuator and its integrated oil way block |
| CN200998740Y (en) * | 2006-12-31 | 2008-01-02 | 江苏金方圆数控机床有限公司 | Numerical control electric-hydraulic servo lead bender |
| CN101749300A (en) * | 2009-12-18 | 2010-06-23 | 沈阳东北电力调节技术有限公司 | Integrating electro-hydraulic actuator |
| CN101749299A (en) * | 2009-12-18 | 2010-06-23 | 沈阳东北电力调节技术有限公司 | Integrating electro-hydraulic servo actuator |
| CN205876853U (en) * | 2015-12-29 | 2017-01-11 | 沈阳东北电力调节技术有限公司 | Integrated type electro -hydraulic control device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |