CN115355211A - Intelligent control digital multi-way valve oil inlet connector for quantitative pump system - Google Patents
Intelligent control digital multi-way valve oil inlet connector for quantitative pump system Download PDFInfo
- Publication number
- CN115355211A CN115355211A CN202210811259.9A CN202210811259A CN115355211A CN 115355211 A CN115355211 A CN 115355211A CN 202210811259 A CN202210811259 A CN 202210811259A CN 115355211 A CN115355211 A CN 115355211A
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- CN
- China
- Prior art keywords
- valve
- pump system
- way valve
- intelligent control
- oil inlet
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
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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
- 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
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Flow Control (AREA)
Abstract
The invention relates to a multi-way valve oil inlet union, in particular to a multi-way valve oil inlet union for a quantitative pump system. The utility model provides an opening value that digital multiple unit valve oil feed of intelligent control allies oneself with for ration pump system, its controller links to each other with the handle, is equipped with oil pressure sensor before the valve of multiple unit valve and behind the valve, the controller accumulates the flow signal of handle, and with differential pressure obtains the case through calculating or looking up the table around the valve that oil pressure sensor returned to open the case through high-speed ooff valve. The multi-way valve has less valve port pressure drop, and can accurately and intelligently control the flow.
Description
Technical Field
The invention relates to a multi-way valve oil inlet union, in particular to a multi-way valve oil inlet union for a quantitative pump system.
Background
At present, the hydrovalve on the market is mostly the collecting valve, because the valve body passageway is complicated, the valve port pressure drop will be great around the collecting valve, in order to solve this problem, the preceding or valve back compensation multiple unit valve oil feed allies oneself with flow control mode: in the form of a fixed-difference overflow valve. When the flow distribution is carried out in the mode, the influence of LS signal pressure is easily caused, the displacement jitter of the valve core is caused, the flow jitter is caused, and the instability of the system working condition or even accidents occur.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an intelligent control digital multi-way valve oil inlet joint for a quantitative pump system. The multi-way valve has less valve port pressure drop, and can accurately and intelligently control the flow.
The invention is realized by the following steps: the utility model provides an opening value that digital multiple unit valve oil feed of intelligent control allies oneself with for ration pump system, its controller links to each other with the handle, is equipped with oil pressure sensor before the valve of multiple unit valve and behind the valve, the controller accumulates the flow signal of handle, and with differential pressure obtains the case through calculating or looking up the table around the valve that oil pressure sensor returned to open the case through high-speed ooff valve.
The intelligent control digital multi-way valve oil inlet connector for the quantitative pump system is characterized in that the controller outputs PWM waves, and the PWM waves are amplified and then output to the high-speed switch valve.
The intelligent control digital multi-way valve for the quantitative pump system is connected with an oil inlet connector, one end of the valve core is connected with an LVDT sensor through a spring, and the LVDT sensor transmits the displacement of the valve core to a controller to realize closed-loop control.
The intelligent control digital multi-way valve oil inlet connector for the quantitative pump system is characterized in that the oil return of the multi-way valve is back pressure-free oil return.
The invention is suitable for a quantitative pump system, the flow control of the oil inlet joint of the quantitative pump system is the accumulation of flow requirements represented by signals of all working joint handles of the multi-way valve, and the opening of a differential overflow valve is controlled according to the accumulated flow value, so that the pressure drop is reduced. The invention can provide the flow actually needed by the system and accurately and intelligently control the flow.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Detailed Description
As shown in figures 1-2, the intelligent control digital multi-way valve oil inlet connector for the quantitative pump system is characterized in that a controller is connected with a handle, oil pressure sensors are arranged in front of and behind the multi-way valve, flow signals of the handle are accumulated by the controller, opening values of a valve core are obtained by calculating or looking up a table with pressure difference between the front and the rear of the valve transmitted by the oil pressure sensors, and the valve core is opened by a high-speed switch valve.
The intelligent control digital multi-way valve oil inlet connector for the quantitative pump system is characterized in that the controller outputs PWM waves which are amplified and then output to the high-speed switch valve.
The intelligent control digital multi-way valve for the quantitative pump system is in oil inlet connection, one end of the valve core is connected with an LVDT sensor through a spring, and the LVDT sensor transmits the displacement of the valve core to a controller to realize closed-loop control.
The intelligent control digital multi-way valve oil inlet connector for the quantitative pump system is characterized in that the oil return of the multi-way valve is back pressure-free oil return.
Claims (4)
1. The utility model provides an intelligent control digital multiple unit valve oil feed allies oneself with for quantitative pump system, its controller links to each other with the handle, its characterized in that, is equipped with oil pressure sensor before the valve of multiple unit valve and behind the valve, the controller accumulates the flow signal of handle, and with differential pressure obtains the opening value of case through calculating or looking up the table around the valve that oil pressure sensor returned to open the case through high-speed ooff valve.
2. The intelligent control digital multi-way valve oil inlet joint for the quantitative pump system according to claim 1, characterized in that: the controller outputs PWM waves, and the PWM waves are amplified and then output to the high-speed switch valve.
3. The intelligent control digital multi-way valve oil inlet joint for the quantitative pump system according to claim 1, characterized in that: one end of the valve core is connected with an LVDT sensor through a spring, and the LVDT sensor transmits the displacement of the valve core to a controller to realize closed-loop control.
4. The intelligent control digital multi-way valve oil inlet joint for the quantitative pump system according to claim 1, characterized in that: the oil return of the multi-way valve is non-back pressure oil return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811259.9A CN115355211A (en) | 2022-07-11 | 2022-07-11 | Intelligent control digital multi-way valve oil inlet connector for quantitative pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811259.9A CN115355211A (en) | 2022-07-11 | 2022-07-11 | Intelligent control digital multi-way valve oil inlet connector for quantitative pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115355211A true CN115355211A (en) | 2022-11-18 |
Family
ID=84031935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210811259.9A Pending CN115355211A (en) | 2022-07-11 | 2022-07-11 | Intelligent control digital multi-way valve oil inlet connector for quantitative pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115355211A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070056440A1 (en) * | 2003-11-25 | 2007-03-15 | Bosch Rexroth Ag | Hydraulic control system for a mobile piece of equipment |
| CN203926181U (en) * | 2014-06-13 | 2014-11-05 | 昆山三一数字科技有限公司 | Single pump list multi-way valve system, intelligent hydraulic flow distributing system and engineering machinery |
| CN207333355U (en) * | 2017-08-25 | 2018-05-08 | 济宁山重新能源有限公司 | A kind of multi-way valve open nature test device |
| CN108266358A (en) * | 2018-01-26 | 2018-07-10 | 中航力源液压股份有限公司 | A kind of variable pump operation handle total travel control device and its composite control method |
| CN109058234A (en) * | 2018-10-24 | 2018-12-21 | 徐州工程学院 | A kind of electric proportional control valve compensation excavator hydraulic system Performance Test System and detection method |
| CN109236775A (en) * | 2018-09-29 | 2019-01-18 | 南京航空航天大学 | A kind of big flow ratio valve module and its control method based on high-speed switch valve guide adjusting |
| CN112196852A (en) * | 2020-07-16 | 2021-01-08 | 浙江工业大学 | Digital fluid pilot-driven double-spool programmable control hydraulic valve and control method thereof |
-
2022
- 2022-07-11 CN CN202210811259.9A patent/CN115355211A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070056440A1 (en) * | 2003-11-25 | 2007-03-15 | Bosch Rexroth Ag | Hydraulic control system for a mobile piece of equipment |
| CN203926181U (en) * | 2014-06-13 | 2014-11-05 | 昆山三一数字科技有限公司 | Single pump list multi-way valve system, intelligent hydraulic flow distributing system and engineering machinery |
| CN207333355U (en) * | 2017-08-25 | 2018-05-08 | 济宁山重新能源有限公司 | A kind of multi-way valve open nature test device |
| CN108266358A (en) * | 2018-01-26 | 2018-07-10 | 中航力源液压股份有限公司 | A kind of variable pump operation handle total travel control device and its composite control method |
| CN109236775A (en) * | 2018-09-29 | 2019-01-18 | 南京航空航天大学 | A kind of big flow ratio valve module and its control method based on high-speed switch valve guide adjusting |
| CN109058234A (en) * | 2018-10-24 | 2018-12-21 | 徐州工程学院 | A kind of electric proportional control valve compensation excavator hydraulic system Performance Test System and detection method |
| CN112196852A (en) * | 2020-07-16 | 2021-01-08 | 浙江工业大学 | Digital fluid pilot-driven double-spool programmable control hydraulic valve and control method thereof |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221118 |