CN108869467A - A kind of pressure difference liquid energy and potential energy recovery system - Google Patents
A kind of pressure difference liquid energy and potential energy recovery system Download PDFInfo
- Publication number
- CN108869467A CN108869467A CN201810730846.9A CN201810730846A CN108869467A CN 108869467 A CN108869467 A CN 108869467A CN 201810730846 A CN201810730846 A CN 201810730846A CN 108869467 A CN108869467 A CN 108869467A
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- China
- Prior art keywords
- valve
- interface
- fluid port
- hydraulic fluid
- reversal valve
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- 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.)
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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
- F15B21/14—Energy-recuperation means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D61/00—Brakes with means for making the energy absorbed available for use
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of pressure difference liquid energy and potential energy recovery systems,Including the first solenoid valve,First reversal valve,Second reversal valve,Variable displacement motor,Hydraulic pump,Second solenoid valve,Piston rod cylinder,First check valve,Second one-way valve,Third reversal valve,A interface,B interface,C interface,D interface,E interface,F interface and controller,The A interface connects the A1 hydraulic fluid port of the second reversal valve,F interface connects the P1 hydraulic fluid port of the second reversal valve,The K1 hydraulic fluid port of second reversal valve connects the P2 hydraulic fluid port of the first reversal valve,The A2 hydraulic fluid port of second reversal valve connects D interface,K2 hydraulic fluid port connects C interface,One end hydraulic fluid port of first solenoid valve connects F interface by check valve,One end hydraulic fluid port of other end hydraulic fluid port connection second solenoid valve,One end hydraulic fluid port of the second solenoid valve connects hydraulic pump,The K1 of the second reversal valve of another termination of the hydraulic pump and the P2 hydraulic fluid port of the first reversal valve,The hydraulic pump is for driving variable displacement motor,Low pressure oil so as to connect E interface is pumped into B interface by second one-way valve,The A3 hydraulic fluid port of the third reversal valve is taken over a job the rod chamber of stopper rod cylinder,The rodless cavity of piston rod cylinder connects fuel tank,The hungry P3 hydraulic fluid port of the third reversal valve connects fuel tank,K3 is connected between variable displacement motor and second one-way valve.The present invention will be measured and is fully utilized, and be reduced by overflow valve spill losses.
Description
Technical field
The invention belongs to excavator fields, and in particular to pressure difference liquid energy and potential energy recovery system.
Background technique
Excavator have revolving platform, each excavate period in can include revolving platform rotation and braking,
It will cause the waste of a large amount of hydraulic oil in the braking of revolving platform, also there is recycling rotary braking hydraulic energy very pair at present
The system of amount, but it is relatively simple, it is fewer in the recycling research to swing arm and the hydraulic energy of bucket arm cylinder, it recycles not
Foot causes the oil liquid at swing arm and dipper to waste relatively high.
Summary of the invention
The present invention to solve the above-mentioned problems, provides a kind of pressure difference liquid energy and potential energy recovery system.
The present invention is specifically implemented with the following technical solutions,
A kind of pressure difference liquid energy and potential energy recovery system, including the first solenoid valve, the first reversal valve, the second reversal valve, variable displacement motor,
Hydraulic pump, second solenoid valve, piston rod cylinder, the first check valve, second one-way valve, third reversal valve, A interface, B interface, C connect
Mouth, D interface, E interface, F interface and controller, the A interface connect the A1 hydraulic fluid port of the second reversal valve, and F interface connects the second reversal valve
P1 hydraulic fluid port, the K1 hydraulic fluid port of second reversal valve connects the P2 hydraulic fluid port of the first reversal valve, and the A2 hydraulic fluid port of second reversal valve meets D
Interface, K2 hydraulic fluid port connect C interface, and one end hydraulic fluid port of first solenoid valve connects F interface by check valve, other end hydraulic fluid port connection the
One end hydraulic fluid port of two solenoid valves, one end hydraulic fluid port of the second solenoid valve connect hydraulic pump, another termination second of the hydraulic pump
The P2 hydraulic fluid port of the K1 of reversal valve and the first reversal valve, the hydraulic pump is for driving variable displacement motor, so as to connect E interface
Low pressure oil be pumped into B interface by second one-way valve, the A3 hydraulic fluid port of the third reversal valve is taken over a job the rod chamber of stopper rod cylinder, living
The rodless cavity of stopper rod cylinder connects fuel tank, and the hungry P3 hydraulic fluid port of the third reversal valve connects fuel tank, and K3 is connected to variable displacement motor and the
Between two check valves.
Further, the first commutation and the second reversal valve are two position, three-way electromagnetic change valve.
Further, the first solenoid valve valve and second solenoid valve are two-position two-way electromagnetic directional valve.
Further, third reversal valve is 3-position-3-way solenoid directional control valve.
The beneficial effects of the invention are that：It will measure and be fully utilized, reduce by overflow valve spill losses.
Detailed description of the invention：
Fig. 1 present hydraulic system schematic diagram；
First solenoid valve valve 1 in figure, the first reversal valve 2, the second reversal valve 3, variable displacement motor 4, hydraulic pump 5, second solenoid valve 6,
Piston rod cylinder 7, the first check valve 8, second one-way valve 9, third reversal valve 10, A interface, B interface, C interface, D interface, E interface,
F interface.
Specific embodiment：
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, the present invention provides a kind of pressure difference liquid energy and potential energy recovery system, including the first solenoid valve 1, first
Reversal valve 2, the second reversal valve 3, variable displacement motor 4, hydraulic pump 5, second solenoid valve 6, piston rod cylinder 7, the first check valve 8, second
Check valve 9, third reversal valve 10, A interface, B interface, C interface, D interface, E interface, F interface and controller, the A interface connect
The A1 hydraulic fluid port of second reversal valve 3, F interface connect the P1 hydraulic fluid port of the second reversal valve 3, and the K1 hydraulic fluid port of second reversal valve 3 connects first
The P2 hydraulic fluid port of reversal valve 2, the A2 hydraulic fluid port of second reversal valve connect D interface, and K2 hydraulic fluid port connects C interface, first solenoid valve 1
One end hydraulic fluid port connects F interface by check valve, and other end hydraulic fluid port connects one end hydraulic fluid port of second solenoid valve 6, the second solenoid valve 6
One end hydraulic fluid port connect hydraulic pump 5, the K1 of the second reversal valve of another termination 3 of the hydraulic pump 5 and the P2 oil of the first reversal valve 2
Mouthful, for driving variable displacement motor 4, the low pressure oil so as to connect E interface pumps the hydraulic pump 5 by second one-way valve 9
It is sent to B interface, the A3 hydraulic fluid port of the third reversal valve 10 is taken over a job the rod chamber of stopper rod cylinder 7, and the rodless cavity of piston rod cylinder 7 connects oil
The hungry P3 hydraulic fluid port of case, the third reversal valve 10 connects fuel tank, and K3 is connected between variable displacement motor 4 and second one-way valve 9.
First reversal valve 2 and the second reversal valve 3 are two position, three-way electromagnetic change valve.
First solenoid valve valve 1 and second solenoid valve 6 are two-position two-way electromagnetic directional valve.
Third reversal valve 10 is 3-position-3-way solenoid directional control valve.
A interface is used to connect the rodless cavity of boom cylinder, and B interface is used to connect the reversal valve of slewing equipment, and C interface is used for
The rodless cavity of bucket arm cylinder is connected, D interface is for connecting dipper reversal valve, and E interface is for connecting fuel tank, and F interface is for connecting
Swing arm reversal valve.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (4)
1. a kind of pressure difference liquid energy and potential energy recovery system, including the first solenoid valve 1, the first reversal valve 2, the second reversal valve 3, variable
Motor 4, hydraulic pump 5, second solenoid valve 6, piston rod cylinder 7, the first check valve 8, second one-way valve 9, third reversal valve 10, A connect
Mouth, B interface, C interface, D interface, E interface, F interface and controller, it is characterised in that：The A interface connects the second reversal valve 3
A1 hydraulic fluid port, F interface connect the P1 hydraulic fluid port of the second reversal valve 3, and the K1 hydraulic fluid port of second reversal valve 3 connects the P2 oil of the first reversal valve 2
Mouthful, the A2 hydraulic fluid port of second reversal valve connects D interface, and K2 hydraulic fluid port connects C interface, and one end hydraulic fluid port of first solenoid valve 1 passes through
Check valve connects F interface, and other end hydraulic fluid port connects one end hydraulic fluid port of second solenoid valve 6, and one end hydraulic fluid port of the second solenoid valve 6 connects
Hydraulic pump 5, the K1 of the second reversal valve of another termination 3 of the hydraulic pump 5 and the P2 hydraulic fluid port of the first reversal valve 2, the hydraulic pump 5
For driving variable displacement motor 4, the low pressure oil so as to connect E interface is pumped into B interface by second one-way valve 9, described
The A3 hydraulic fluid port of third reversal valve 10 is taken over a job the rod chamber of stopper rod cylinder 7, and the rodless cavity of piston rod cylinder 7 connects fuel tank, and the third is changed
Fuel tank is connected to the hungry P3 hydraulic fluid port of valve 10, K3 is connected between variable displacement motor 4 and second one-way valve 9.
2. a kind of pressure difference liquid energy as described in claim 1 and potential energy recovery system, it is characterised in that：First reversal valve 2 and
Two reversal valves 3 are two position, three-way electromagnetic change valve.
3. a kind of pressure difference liquid energy as claimed in claim 2 and potential energy recovery system, it is characterised in that：First solenoid valve valve, 1 He
Second solenoid valve 6 is two-position two-way electromagnetic directional valve.
4. a kind of pressure difference liquid energy as claimed in claim 3 and potential energy recovery system, it is characterised in that：Third reversal valve 10 is three
Position three-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730846.9A CN108869467A (en) | 2018-07-05 | 2018-07-05 | A kind of pressure difference liquid energy and potential energy recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730846.9A CN108869467A (en) | 2018-07-05 | 2018-07-05 | A kind of pressure difference liquid energy and potential energy recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869467A true CN108869467A (en) | 2018-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810730846.9A Pending CN108869467A (en) | 2018-07-05 | 2018-07-05 | A kind of pressure difference liquid energy and potential energy recovery system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108869467A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397677A (en) * | 2013-08-09 | 2013-11-20 | 太原科技大学 | Hydraulic excavator movable arm loop based on hydraulic transformer and control method thereof |
| CN103608526A (en) * | 2011-07-06 | 2014-02-26 | 住友重机械工业株式会社 | Shovel and control method of shovel |
| CN203655795U (en) * | 2013-12-24 | 2014-06-18 | 浙江大学 | TBM thrust hydraulic system with adequate pressure flow in overall process |
| CN104364536A (en) * | 2012-08-15 | 2015-02-18 | 萱场工业株式会社 | Control system for hybrid construction machine |
| CN204590151U (en) * | 2015-01-12 | 2015-08-26 | 泸州职业技术学院 | The new-type movable arm potential energy recovery system of ultra-large type hydraulic crawler excavator |
| CN105452678A (en) * | 2013-08-05 | 2016-03-30 | 住友重机械工业株式会社 | Shovel |
| CN105626610A (en) * | 2016-03-21 | 2016-06-01 | 山东理工大学 | Energy-saving system of mechanical arm of energy-saving bagging machine |
| CN106030124A (en) * | 2014-02-14 | 2016-10-12 | 神钢建机株式会社 | Hydraulic drive device for construction machine |
-
2018
- 2018-07-05 CN CN201810730846.9A patent/CN108869467A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103608526A (en) * | 2011-07-06 | 2014-02-26 | 住友重机械工业株式会社 | Shovel and control method of shovel |
| CN104364536A (en) * | 2012-08-15 | 2015-02-18 | 萱场工业株式会社 | Control system for hybrid construction machine |
| CN105452678A (en) * | 2013-08-05 | 2016-03-30 | 住友重机械工业株式会社 | Shovel |
| CN103397677A (en) * | 2013-08-09 | 2013-11-20 | 太原科技大学 | Hydraulic excavator movable arm loop based on hydraulic transformer and control method thereof |
| CN203655795U (en) * | 2013-12-24 | 2014-06-18 | 浙江大学 | TBM thrust hydraulic system with adequate pressure flow in overall process |
| CN106030124A (en) * | 2014-02-14 | 2016-10-12 | 神钢建机株式会社 | Hydraulic drive device for construction machine |
| CN204590151U (en) * | 2015-01-12 | 2015-08-26 | 泸州职业技术学院 | The new-type movable arm potential energy recovery system of ultra-large type hydraulic crawler excavator |
| CN105626610A (en) * | 2016-03-21 | 2016-06-01 | 山东理工大学 | Energy-saving system of mechanical arm of energy-saving bagging machine |
Non-Patent Citations (1)
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| 张玉平、谭娟主编: "《液压传动》", 30 June 2017, 华中科技大学出版社 * |
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Application publication date: 20181123 |