CN110230613A - The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups - Google Patents
The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups Download PDFInfo
- Publication number
- CN110230613A CN110230613A CN201910309655.XA CN201910309655A CN110230613A CN 110230613 A CN110230613 A CN 110230613A CN 201910309655 A CN201910309655 A CN 201910309655A CN 110230613 A CN110230613 A CN 110230613A
- Authority
- CN
- China
- Prior art keywords
- valve
- flow
- hydraulic
- large range
- speed regulation
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract 3
- 239000007788 liquid Substances 0.000 claims description 5
- 230000008094 contradictory effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000013459 approach Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 30
- 238000010586 diagram Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000011664 signaling Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- 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
-
- 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses the large range high resolution rate hydraulic speed regulation systems that handoff technique is closed based on more valve groups.System of the invention is that several proportioning valves are composed in parallel to a hydraulic valve bank, and in flow demand in wide variation, valve group uses different combination and switching, keep the high-resolution characteristic of flow, the resolution ratio of all monomer valves combination in hydraulic valve bank is all satisfied movement minimum flow requirement, to guarantee stability contorting cylinder movement.The present invention discloses the topology example of different types proportioning valve adopting said method, pass through the method for proportioning valve alternate combinations in parallel, guarantee this hydraulic system can in the case where a wide range of change in flow stability contorting cylinder action, avoid due to flow demand range it is excessive caused by flow system flow is unstable, noise is big and overall sealing performance is destroyed the problems such as.Under hydraulic system fixed configurations for industry internal liquidity demand wide variation, the contradictory problems for solving speed and resolution ratio provide new approaches and scheme, promote industry technology development.
Description
Technical field
The invention belongs to universal machine hydraulic system technical fields, and the large range high resolution of handoff technique is closed based on more valve groups
Rate hydraulic speed regulation system.
Background technique
At present in large-flow hydraulic system fixed configurations, and meet under high flow rate motion conditions, often the resolution of proportioning valve
Rate is inadequate, is difficult precisely to be adjusted small changes in flow rate, that is, realizes the low-speed motion of hydraulic cylinder, frequently can lead to flow shakiness
It is fixed, cause vibration and the impact noise of hydraulic system, shake oil cylinder, or even loosen connecting component, destroys system
System overall sealing performance.Therefore, it is badly in need of designing a kind of hydraulic system for meeting flow demand wide variation, solves system speed
With the contradictory problems of resolution ratio.
Summary of the invention
It is hydraulic to provide the large range high resolution rate for closing handoff technique based on more valve groups by the present invention to solve above-mentioned technical problem
Speed-regulating system.
The technical solution adopted by the present invention is that: the large range high resolution rate Hydraulic Adjustable Speed system of handoff technique is closed based on more valve groups
System, which is characterized in that by taking three valves as an example, by 1# big flow proportioning valve (hereinafter referred to as proportioning valve 1), 2# big flow proportioning valve (with
Lower abbreviation proportioning valve 2), high-resolution proportioning valve (hereinafter referred to as proportioning valve 3) compose in parallel a hydraulic valve system and interlock valve group,
Controller is connect with proportioning valve 1, proportioning valve 2 and proportioning valve 3 respectively, and by oil pipe by hydraulic valve system interlock valve group with it is hydraulic
8 or so two chamber 801,802 of cylinder is separately connected.Signal 5 controls proportioning valve 1, and signal 6 controls proportioning valve 2, and signal 7 controls proportioning valve
3。
By controller, the dynamic property of proportioning valve 1, proportioning valve 2 and proportioning valve 3 is debugged and is completed.
When oil cylinder 8 needs to carry out low-speed motion, controller receives primary flow signal, and it is optimal to cook up proportioning valve combination
Scheme, the signal 5 and signal 6 of controller control proportioning valve 1 respectively and proportioning valve 2 closes oil circuit, and the signal 7 of controller controls
Proportioning valve 3 connects oil circuit, keeps valve group high-resolution characteristic, the accurate and quick small changes in flow rate of regulating system, so that oil cylinder 8 is dynamic
Make smooth, position control accuracy height, response is fast.
When oil cylinder 8 needs to carry out high-speed motion, controller receives big flow signal, and it is optimal to cook up proportioning valve combination
Scheme, signal 5, the signal 6 of device processed control proportioning valve 1, proportioning valve 2 with signal 7 respectively and connect oil circuit with proportioning valve 3, valve group is adopted
It is closed with three valve groups, keeps its high-resolution characteristic, accurate and quick regulating system big flow variation, position control accuracy is high, rings
It should be fast.
Detailed description of the invention
Fig. 1 is hydraulic schematic diagram of the invention；
Fig. 2 .1 and Fig. 2 .2 are the operation schematic diagrams of the oil cylinder high-speed motion of hydraulic system of the invention；Wherein Fig. 2 .1 is
Oil cylinder high speed stretch out motion schematic diagram, arrow direction are oil liquid flow direction；Fig. 2 .2 is oil cylinder high speed retraction movement schematic diagram,
Arrow direction is oil liquid flow direction；
Fig. 3 .1 and Fig. 3 .2 are the operation schematic diagrams of the oil cylinder low-speed motion of hydraulic system of the invention；Wherein Fig. 3 .1 is
Oil cylinder low speed stretch out motion schematic diagram, arrow direction are oil liquid flow direction；Fig. 3 .2 is oil cylinder low speed retraction movement schematic diagram,
Arrow direction is oil liquid flow direction；
In Fig. 1,1 is 1# big flow proportioning valve, and 2 be 2# big flow proportioning valve, and 3 be high-resolution proportioning valve, and 4 be hydraulic
Oil sources, 5 be the control signaling interface of proportioning valve 1, and 6 be the control signaling interface of proportioning valve 2, and 7 be the control signal of proportioning valve 3
Interface, 8 be oil cylinder, and 801 be left chamber, and 802 be right chamber, and 803 be piston；
Specific embodiment
It is a specific embodiment of the invention below, in conjunction with attached drawing, 1,2.1,2.2,3.1 and 3.2 couple of present invention is done into one
Walk explanation.
Fig. 2 .1,2.2,3.1 and 3.2 are please referred to, the large range high resolution rate Hydraulic Adjustable Speed of handoff technique is closed based on more valve groups
System, specifically includes that proportioning valve 1, proportioning valve 2, proportioning valve 3, and proportioning valve 1,2,3 composes in parallel a hydraulic valve system and interlocks valve
Group is separately connected with 8 or so two chamber 801,802 of hydraulic cylinder, and the A mouth of proportioning valve 1,2,3 is connect with oil cylinder rodless cavity 801 respectively,
The P mouth of proportioning valve 1,2,3 is connect with 4 high pressure oil port of oil sources, the T mouth of proportioning valve 1,2,3/Y mouthfuls and oil cylinder rodless cavity 802 and oil
The fuel tank in source 4 connects, and the X mouth of proportioning valve 1 is connect with control signal 5, and the X mouth of proportioning valve 2 is connect with control signal 6, proportioning valve 3
X mouth with control signal 7 connect.
As shown in Figure 2,3, when oil cylinder 8 needs to carry out low-speed motion, controller receives primary flow signal, cooks up ratio
Example valve group closes optimal case, and the signal 5 and signal 6 of controller control proportioning valve 1 respectively and proportioning valve 2 closes oil circuit, controller
Signal 7 control proportioning valve 4 connect oil circuit, keep valve group high-resolution characteristic, the accurate and quick small changes in flow rate of regulating system,
So that oil cylinder 8 acts smooth, position control accuracy height, response is fast.
As shown in Figure 2,3, when oil cylinder 8 needs to carry out high-speed motion, device processed receives big flow signal, cooks up ratio
Valve group closes optimal case, and signal 5, the signal 6 of controller control proportioning valve 1, proportioning valve 2 with signal 7 respectively and connect with proportioning valve 3
Oil circuit, valve group are closed using three valve groups, keep its high-resolution characteristic, accurate and quick regulating system big flow variation, position control
Precision processed is high, and response is fast.
The foregoing is merely preferable case study on implementation of the invention, are not intended to limit the invention, all in original of the invention
It then with any modification for being made within spirit, equally improves and replacement, should all be included in the protection scope of the present invention.
Claims (6)
1. closing the large range high resolution rate hydraulic speed regulation system of handoff technique based on more valve groups, which is characterized in that the system is by liquid
Pressure oil source, hydraulic valve bank, hydraulic cylinder composition, hydraulic valve system interlock valve group by several different types proportioning valve parallel connection groups
At；In flow demand wide variation, valve group uses different combination and switching, keeps the high-resolution characteristic of flow；Institute
It states the interlock resolution ratio of all monomer valves combination in valve group of hydraulic valve system and is all satisfied movement minimum flow requirement, to guarantee
Stability contorting cylinder movement.
2. the large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups as described in claim 1, it is special
Sign is, several different types proportioning valves are composed in parallel a hydraulic valve system and are interlocked valve group.
3. the large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups as described in claim 1, it is special
Sign is, in flow demand hour, controller receives primary flow signal, cooks up proportioning valve combination optimal case, right in real time
Different types of proportioning valve switches over, so that hydraulic valve bank enters small flow high-resolution control model, keeps the height of flow
Resolution character.
4. the large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups as described in claim 1, it is special
Sign is, when flow demand is very big, controller receives big flow signal, cooks up proportioning valve combination optimal case, in real time
Different types of proportioning valve is switched over, so that hydraulic valve bank enters big flow high-resolution control model, keeps flow
High-resolution characteristic.
5. the large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups as described in claim 1, it is special
Sign is, the interlock resolution ratio of all monomer valves combination in valve group of the hydraulic valve system is all satisfied movement minimum flow and wants
It asks, to guarantee stability contorting cylinder movement.
6. the large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups as described in claim 1, it is special
Sign is that the circuit is generally applicable to the hydraulic system of big flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309655.XA CN110230613A (en) | 2019-04-17 | 2019-04-17 | The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309655.XA CN110230613A (en) | 2019-04-17 | 2019-04-17 | The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110230613A true CN110230613A (en) | 2019-09-13 |
Family
ID=67860182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910309655.XA Pending CN110230613A (en) | 2019-04-17 | 2019-04-17 | The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110230613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096670A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Hydraulic system and hydraulic pressure control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206636883U (en) * | 2017-03-30 | 2017-11-14 | 扬州尼尔工程塑料有限公司 | A kind of press master cylinder controlling organization of Parallel Control |
-
2019
- 2019-04-17 CN CN201910309655.XA patent/CN110230613A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206636883U (en) * | 2017-03-30 | 2017-11-14 | 扬州尼尔工程塑料有限公司 | A kind of press master cylinder controlling organization of Parallel Control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096670A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Hydraulic system and hydraulic pressure control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107345535B (en) | A kind of flow pressure divides chamber to coordinate control load simulation method | |
| CN206647332U (en) | A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device | |
| CN203113416U (en) | High-precision hydraulic control system | |
| CN107165892B (en) | A kind of sliding-mode control of electrohydraulic servo system | |
| CN110230613A (en) | The large range high resolution rate hydraulic speed regulation system of handoff technique is closed based on more valve groups | |
| CN103850286A (en) | Electrically-driven hydraulic excavator negative flow system based on metering pump | |
| CN103807243B (en) | Engineering machinery ratio pressure-reducing cushioning valve | |
| CN209671303U (en) | A kind of monoblock type Solid rocket engine valve group suitable for small-diameter shield machine | |
| CN105065361B (en) | Proportional flow unit under compound control of electromagnetic switch valves and proportional throttle valve in parallel | |
| CN104481948A (en) | Stabilized pressure flow control valve and load sensitive analog valve | |
| CN107387477A (en) | A kind of leading controller for guiding valve, hydraulic cylinder control loop | |
| CN105782164A (en) | Multi-cavity hydraulic cylinder and control system and method thereof | |
| CN110529450A (en) | Big flow low power consumption high-precision hydraulic speed regulation system based on differential principle before valve | |
| CN104343755A (en) | Hydraulically controlled slave valve and load-sensitive simulation valve | |
| CN207864282U (en) | Hydraulic control system and engineering machinery | |
| JP6393305B2 (en) | Servo actuator | |
| CN203809397U (en) | Slide valve type reversing valve | |
| CN203009444U (en) | Novel electrical control pumping oil cylinder based on magnetostrictive sensors | |
| CN108412842A (en) | Hydraulic cylinder friciton compensation control method research | |
| CN205780025U (en) | Multicarity hydraulic cylinder and control system thereof | |
| CN103807245A (en) | Electric proportional overflow cushion valve for engineering machines | |
| CN209781711U (en) | Marine mechanical valve of adjustable discharge | |
| CN209892555U (en) | Bidirectional speed regulation hydraulic control system based on hydraulic cylinder negative load oil return cavity | |
| Niu et al. | An energy-saving position control strategy for electro-hydraulic servo system with parallel dual valves | |
| CN106151139B (en) | A kind of high-low pressure pressure regulation valve group |
Legal Events
| 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 |
Application publication date: 20190913 |
|
| WD01 | Invention patent application deemed withdrawn after publication |