CN113251015A - Switchable servo hydraulic oil source control system - Google Patents
Switchable servo hydraulic oil source control system Download PDFInfo
- Publication number
- CN113251015A CN113251015A CN202110685164.2A CN202110685164A CN113251015A CN 113251015 A CN113251015 A CN 113251015A CN 202110685164 A CN202110685164 A CN 202110685164A CN 113251015 A CN113251015 A CN 113251015A
- Authority
- CN
- China
- Prior art keywords
- oil
- control system
- oil supply
- servo hydraulic
- valve
- 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
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 111
- 239000000446 fuel Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000011946 reduction process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
Images
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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- 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
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- 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
Landscapes
- 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 relates to the technical field of hydraulic oil sources, in particular to a switchable servo hydraulic oil source control system which comprises an oil tank, an oil supply module and an oil return module, wherein the oil supply module comprises an oil supply pump connected with the oil tank, the oil supply pump is connected with a lifting cylinder and an oil supply hose through a two-position three-way electromagnetic directional valve, the oil return module comprises an oil return pump connected with the oil tank, and the oil supply module further comprises a three-position four-way electromagnetic directional valve and a superposed hydraulic control one-way valve which are sequentially arranged between the two-position three-way electromagnetic directional valve and the lifting cylinder The pressure reduction process is stable. The whole safety is high, the practicality is good, all has the display alarm function to flow, temperature, pressure and the pollution in the system.
Description
Technical Field
The invention relates to the technical field of hydraulic oil sources, in particular to a switchable servo hydraulic oil source control system.
Background
In the application environment of the existing hydraulic oil source, besides supplying oil and lubricating for equipment such as a test bed, a bench and the like, the hydraulic oil source also needs to have the function of self lifting so as to be suitable for more application environments and working ranges, and meanwhile, the hydraulic oil source has higher requirements on high-pressure and low-pressure use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a switchable servo hydraulic oil source control system, and aims to solve the technical problem of how to design a hydraulic oil source control system capable of meeting higher application requirements.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a servo hydraulic pressure oil source control system of changeable formula, includes oil tank, fuel feeding module and oil return module, and the fuel feeding module includes the fuel feeding pump of being connected with the oil tank, and the fuel feeding pump is connected with lift cylinder and fuel feeding hose through two tee bend solenoid directional valves, and the oil return module includes the oil return pump of being connected with the oil tank, and the fuel feeding module is still including setting gradually tribit cross solenoid directional valve and stack formula liquid accuse check valve between two tee bend solenoid directional valves and lift cylinder.
Furthermore, a one-way valve and a high-pressure filter are sequentially arranged between the oil supply pump and the two-position three-way electromagnetic directional valve.
Furthermore, the oil tank is also connected with an electromagnetic overflow valve, and the electromagnetic overflow valve is connected with a pressure relay and a pressure gauge.
Further, an oil outlet quick-change connector is arranged on the oil supply hose.
Furthermore, a one-way valve, an oil flow indicator, an oil return quick-change connector, a fan heat exchanger and an oil return filter are sequentially arranged between the oil return pump and the oil tank.
Furthermore, a temperature relay, a liquid level relay, an oil absorption filter, an air filter and a liquid level liquid thermometer are arranged in the oil tank.
The beneficial effect that this technical scheme brought is: the switchable servo hydraulic oil source control system disclosed by the invention realizes the functions of oil supply and oil return, can provide a lubricating oil supply effect for an external device, can realize the oil supply effect for the lifting oil cylinder through the A/B port of the reversing valve, and can realize the function of high-low pressure switching through the electromagnetic reversing valve, so that the stability of the boosting and depressurizing processes of the system is ensured. The whole safety is high, the practicality is good, all has the display alarm function to flow, temperature, pressure and the pollution in the system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a hydraulic flow diagram of a switchable servo hydraulic oil source control system in an embodiment of the present invention;
in the figure: the system comprises an oil tank 1, an oil supply module 2, an oil return module 3, an oil supply pump 21, a lifting cylinder 22, an oil supply hose 23, a two-position three-way electromagnetic directional valve 24, a three-position four-way electromagnetic directional valve 25, a superposed hydraulic control one-way valve 26, a first one-way valve 241, a high-pressure filter 242, an electromagnetic overflow valve 11, a pressure relay 12, a pressure gauge 13, an oil outlet quick-change connector 231, a second one-way valve 32, an oil flow indicator 33, an oil return quick-change connector 34, a fan heat exchanger 35, an oil return filter 36, a temperature relay 14, a liquid level relay 15, an oil suction filter 16, an air filter 17 and a liquid level thermometer 19.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.
As shown in fig. 1, this kind of servo hydraulic oil source control system of switchable formula, including oil tank 1, fuel feeding module 2 and oil return module 3, fuel feeding module 2 includes fuel feed pump 21 connected with oil tank 1, fuel feed pump 21 is connected with lift cylinder 22 and fuel feed hose 23 through two tee bend solenoid directional valves 24, oil return module 3 includes oil return pump 31 connected with oil tank 1, fuel feeding module 2 is still including setting gradually three tee bend solenoid directional valves 25 and stack formula liquid accuse check valve 26 between two tee bend solenoid directional valves 24 and lift cylinder 22, can make through fuel feeding module 2 realize the oil supply process from oil tank 1 inside to outside, realize the oil return process of leading the used fluid in the outside back oil tank 1 through oil return module 3.
The improved point of the invention is that a switchable working mode is realized through the two-position three-way electromagnetic directional valve 24, when the oil supply pump 21 is in a lubricating state, high-pressure oil of the system can be supplied to an external oil unit through the port B, and return oil is pumped back to an oil tank through the oil return pump 31. When the oil supply pump 21 is in a lifting state, high-pressure oil can be supplied to the three-position four-way electromagnetic directional valve 25 through the port A, so that the switching effect of high pressure and low pressure can be realized, a double-hydraulic-control one-way valve is superposed on an A, B oil outlet of the three-position four-way electromagnetic directional valve 25 to form a hydraulic lock, and therefore the hydraulic cylinder is prevented from descending due to the dead weight of the platform body when the directional valve is in a middle position, and the safety of the system is further guaranteed.
In this embodiment, a first check valve 241 and a high-pressure filter 242 are sequentially arranged between the oil supply pump 21 and the two-position three-way electromagnetic directional valve 24, so that the oil is switched between the oil supply pump 21 and the two-position three-way electromagnetic directional valve 24 through the ground check valve 241, high-pressure filtration of the oil is realized through the high-pressure filter 242, and safety is ensured.
In this embodiment, the oil tank 1 is further connected with an electromagnetic overflow valve 11, the electromagnetic overflow valve 11 is connected with a pressure relay 12 and a pressure gauge 13, so that the oil pressure in the system can be monitored through the pressure relay 12 and the pressure gauge 13, so as to ensure the safety, and the electromagnetic overflow valve 11 serves as a switching tool for high and low pressure in the whole system, has an unloading function, and enables the system to have the functions of stably boosting and reducing pressure during high-low pressure control.
In the present embodiment, the oil supply hose 23 is provided with an oil outlet quick-change coupler 231.
In this embodiment, a heat-conducting check valve 32, an oil flow indicator 33, an oil return quick-change connector 34, a fan heat exchanger 35, and an oil return filter 36 are sequentially disposed between the oil return pump 31 and the oil tank 1, so that the oil return is switched on and off between the oil return pump 31 and the oil tank 1 through the laminated check valve 32, the oil return is cooled by the fan heat exchanger 35 to ensure that the oil temperature of the system is within the temperature range of the normal production, and the oil return filter 36 can filter the oil return.
In this embodiment, be provided with temperature relay 14, level relay 15, oil absorption filter 16, air cleaner 17 and liquid level liquid thermometer 19 in the oil tank 1, can be so that through temperature relay 14, level relay 15 and liquid level liquid thermometer 19 to monitor the temperature and the liquid level in the oil tank 1, filter fluid through oil absorption filter 16, filter the air through air cleaner 17.
In conclusion, the switchable servo hydraulic oil source control system disclosed by the invention realizes the functions of oil supply and oil return, can provide the effect of lubricating and supplying oil for external devices, can realize the effect of supplying oil to the lifting oil cylinder through the A/B port of the reversing valve, and can realize the function of switching high pressure and low pressure by the electromagnetic reversing valve, so that the stability of the boosting and depressurizing processes of the system is ensured. The whole safety is high, the practicality is good, all has the display alarm function to flow, temperature, pressure and the pollution in the system.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A switchable servo hydraulic oil source control system is characterized in that: including oil tank, fuel feeding module and oil return module, the fuel feeding module include with the fuel feed pump that the oil tank is connected, the fuel feed pump is connected with lifting cylinder and fuel feeding hose through two tee bend electromagnetic directional valves, the oil return module include with the oil return pump that the oil tank is connected, the fuel feeding module is still including setting gradually two tee bend electromagnetic directional valves with three-position four-way electromagnetic directional valve and stack formula liquid accuse check valve between the lifting cylinder.
2. A switchable servo hydraulic oil supply control system according to claim 1, characterized by: and a one-way valve and a high-pressure filter are sequentially arranged between the oil supply pump and the two-position three-way electromagnetic directional valve.
3. A switchable servo hydraulic oil supply control system according to claim 1, characterized by: the oil tank is also connected with an electromagnetic overflow valve, and the electromagnetic overflow valve is connected with a pressure relay and a pressure gauge.
4. A switchable servo hydraulic oil supply control system according to claim 1, characterized by: and the oil supply hose is provided with an oil outlet quick-change connector.
5. A switchable servo hydraulic oil supply control system according to claim 1, characterized by: the oil return pump with set gradually check valve, oil flow indicator, oil return quick change coupler, fan heat exchanger and return oil filter between the oil tank.
6. A switchable servo hydraulic oil supply control system according to claim 1, characterized by: and a temperature relay, a liquid level relay, an oil absorption filter, an air filter and a liquid level liquid thermometer are arranged in the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110685164.2A CN113251015A (en) | 2021-06-21 | 2021-06-21 | Switchable servo hydraulic oil source control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110685164.2A CN113251015A (en) | 2021-06-21 | 2021-06-21 | Switchable servo hydraulic oil source control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113251015A true CN113251015A (en) | 2021-08-13 |
Family
ID=77188900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110685164.2A Pending CN113251015A (en) | 2021-06-21 | 2021-06-21 | Switchable servo hydraulic oil source control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113251015A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07227105A (en) * | 1994-02-17 | 1995-08-29 | Kubota Corp | Hydraulic system of tractor |
| US20060223670A1 (en) * | 2005-03-31 | 2006-10-05 | Honda Motor Co., Ltd. | Hydraulic circuit control device |
| CN203500808U (en) * | 2013-09-13 | 2014-03-26 | 江苏巴威工程技术股份有限公司 | Highly efficient combined type thin oil lubricating device |
| CN104790325A (en) * | 2015-04-27 | 2015-07-22 | 安徽科技学院 | Hydraulic and control system of environment-friendly vehicle |
| CN204921504U (en) * | 2015-08-24 | 2015-12-30 | 浙江龙文机械有限责任公司 | Stamping equipment's hydraulic control device |
| CN105697436A (en) * | 2016-04-12 | 2016-06-22 | 浙江大学 | Hydraulic system with flow priority control function for small-volume blind cavity pressure control |
-
2021
- 2021-06-21 CN CN202110685164.2A patent/CN113251015A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07227105A (en) * | 1994-02-17 | 1995-08-29 | Kubota Corp | Hydraulic system of tractor |
| US20060223670A1 (en) * | 2005-03-31 | 2006-10-05 | Honda Motor Co., Ltd. | Hydraulic circuit control device |
| CN203500808U (en) * | 2013-09-13 | 2014-03-26 | 江苏巴威工程技术股份有限公司 | Highly efficient combined type thin oil lubricating device |
| CN104790325A (en) * | 2015-04-27 | 2015-07-22 | 安徽科技学院 | Hydraulic and control system of environment-friendly vehicle |
| CN204921504U (en) * | 2015-08-24 | 2015-12-30 | 浙江龙文机械有限责任公司 | Stamping equipment's hydraulic control device |
| CN105697436A (en) * | 2016-04-12 | 2016-06-22 | 浙江大学 | Hydraulic system with flow priority control function for small-volume blind cavity pressure control |
Non-Patent Citations (1)
| Title |
|---|
| 刘忠: "《液压与气压传动》", 华中科技大学出版社, pages: 212 * |
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| 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: 20210813 |