CN105545878A - Transient-pressure oil supply system for multi-way valve test stand - Google Patents
Transient-pressure oil supply system for multi-way valve test stand Download PDFInfo
- Publication number
- CN105545878A CN105545878A CN201610054647.1A CN201610054647A CN105545878A CN 105545878 A CN105545878 A CN 105545878A CN 201610054647 A CN201610054647 A CN 201610054647A CN 105545878 A CN105545878 A CN 105545878A
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- Prior art keywords
- valve
- way valve
- oil
- hydraulic pump
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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)
- Safety Valves (AREA)
Abstract
The invention discloses a transient-pressure oil supply system for a multi-way valve test stand. A hydraulic pump is in tandem connection on an oil supply path between an oil tank and an oil inlet of a tested multi-way valve; the hydraulic pump is connected to a motor; first overflow valves are used as safety valves for being connected between the hydraulic pump and the oil tank; the first overflow valves are in parallel connection to the two ends of the hydraulic pump; an oil return opening of the tested multi-way valve is connected to the oil tank through an oil return path; a second overflow valve and a one-way valve are in tandem connection on the oil return path in sequence; the two ends of the one-way valve are in parallel connection; a working end opening I of a cartridge valve is connected to an oil supply path between the hydraulic pump and the tested multi-way valve; a working end opening II of the cartridge valve is connected to a throttle valve; a working end opening III of the cartridge valve is connected to the oil tank; a working end opening I of a two-position three-way solenoid directional valve is connected to the throttle valve; a working end opening II of the two-position three-way solenoid directional valve is connected to the tested multi-way valve through the oil supply path; and a working end opening III of the two-position three-way solenoid directional valve is connected to the oil tank through the oil return path. The transient-pressure oil supply system can realize a pressure step signal which meets requirements of a transient working condition.
Description
Technical field
The present invention relates to a kind of multi-way valve test bench transient pressure oil supply system.
Background technique
Safety valve in multi-way valve is for the maximum pressure of restriction system; other elements in protective system; maintenance host hydraulic system has safely very important meaning; therefore; NBS requires to carry out transient test to the safety valve of multi-way valve, and has strict regulation to multi-way valve transient test operating mode.The major function of transient test device is for tested multi-way valve provides one to meet instantaneous conditions required pressure step signal, but traditional transient pressure fuel feeding scheme is longer due to switching time, can not meet the requirement of relevant criterion for safety valve transient test operating mode.
Summary of the invention
The present invention proposes a kind of multi-way valve test bench transient pressure oil supply system, two position, three-way electromagnetic change valve, throttle valve and cartridge valve is adopted to form quick switching unit, can realize meeting instantaneous conditions required pressure step signal, and it is reasonable in design, structure is simple, easy to implement, with low cost.
The present invention realizes particular by following technological scheme:
A kind of multi-way valve test bench transient pressure oil supply system, comprise fuel tank 1, oil hydraulic pump 3, first relief valve 7, one-way valve 12, flowmeter 13, second relief valve 14 and tested multi-way valve 16, oil passage between described fuel tank 1 and the filler opening of tested multi-way valve 16 is connected in series connecting fluid press pump 3, and described oil hydraulic pump 3 connects motor 4; Described first relief valve 7 is connected between oil hydraulic pump 3 and fuel tank 1 as safety valve, and the first relief valve 7 is parallel to the two ends of oil hydraulic pump 3; The return opening of tested multi-way valve 16 is connected with fuel tank 1 by oil circuit, oil circuit is connected in series successively connection second relief valve 14 and one-way valve 12, and the two ends of described one-way valve 12 are connected in parallel; The working port one of described cartridge valve 8 is connected to the oil passage between oil hydraulic pump 3 and tested multi-way valve 16, the working port two of described cartridge valve 8 connects throttle valve 9, the working port three of described cartridge valve 8 is connected to fuel tank 1, the working port one of described two position, three-way electromagnetic change valve 10 is connected to described throttle valve 9, the working port two of described two position, three-way electromagnetic change valve 10 passes through oil passage and is connected with tested multi-way valve, and working port three is connected with fuel tank 1 by oil circuit.
Preferably, the working port two of described three-way solenoid valve 10 and the contact of oil passage are in the working port one of cartridge valve 8 and between the contact of oil passage and tested multi-way valve 16.
Preferably, the first filter 2 and the second filter 5 is installed at the two ends of described oil hydraulic pump 3 respectively, and described first filter 2 is between fuel tank 1 and oil hydraulic pump 3, and described second filter 5 is at oil hydraulic pump 3 and between the first relief valve 7 and the contact of oil passage.
Preferably, described second filter 5 and be provided with the first pressure gauge 6 between the first relief valve 7 and the contact of oil passage.
Preferably, described tested multi-way valve filler opening arranges the second pressure gauge 11.
Preferably, described tested multi-way valve oil outlet place arranges the 3rd pressure gauge 15.
The beneficial effect that the present invention produces is: design of Hydraulic System of the present invention is reasonable, and structure is simple, easy to implement, with low cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of multi-way valve test bench transient pressure oil supply system as shown in Figure 1, comprise fuel tank 1, oil hydraulic pump 3, first relief valve 7, one-way valve 12, flowmeter 13, second relief valve 14 and tested multi-way valve 16, oil passage between described fuel tank 1 and the filler opening of tested multi-way valve 16 is connected in series connecting fluid press pump 3, and described oil hydraulic pump 3 connects motor 4; Described first relief valve 7 is connected between oil hydraulic pump 3 and fuel tank 1 as safety valve, and the first relief valve 7 is parallel to the two ends of oil hydraulic pump 3; The return opening of tested multi-way valve 16 is connected with fuel tank 1 by oil circuit, oil circuit is connected in series successively connection second relief valve 14 and one-way valve 12, and the two ends of described one-way valve 12 are connected in parallel; The working port one of described cartridge valve 8 is connected to the oil passage between oil hydraulic pump 3 and tested multi-way valve 16, the working port two of described cartridge valve 8 connects throttle valve 9, the working port three of described cartridge valve 8 is connected to fuel tank 1, the working port one of described two position, three-way electromagnetic change valve 10 is connected to described throttle valve 9, the working port two of described two position, three-way electromagnetic change valve 10 passes through oil passage and is connected with tested multi-way valve, and working port three is connected with fuel tank 1 by oil circuit.
In the present embodiment, the working port two of three-way solenoid valve 10 and the contact of oil passage are in the working port one of cartridge valve 8 and between the contact of oil passage and tested multi-way valve 16, the first filter 2 and the second filter 5 is installed at the two ends of described oil hydraulic pump 3 respectively, described first filter 2 is between fuel tank 1 and oil hydraulic pump 3, described second filter 5 is at oil hydraulic pump 3 and between the first relief valve 7 and the contact of oil passage, described second filter 5 and be provided with the first pressure gauge 6 between the first relief valve 7 and the contact of oil passage, described tested multi-way valve filler opening arranges the second pressure gauge 11, described tested multi-way valve oil outlet place arranges the 3rd pressure gauge 15.
The working procedure of multi-way valve test bench transient pressure oil supply system of the present invention is: when the system is operating, the switch motion of two position, three-way electromagnetic change valve 10 causes the unlatching of cartridge valve 8 with closed, oil passage pressure oil off-load when cartridge valve 8 is opened, oil passage pressure oil fuel feeding when cartridge valve 8 is closed.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a multi-way valve test bench transient pressure oil supply system, it is characterized in that, comprise fuel tank (1), oil hydraulic pump (3), the first relief valve (7), one-way valve (12), flowmeter (13), the second relief valve (14) and tested multi-way valve (16), oil passage between described fuel tank (1) and the filler opening of tested multi-way valve (16) is connected in series connecting fluid press pump (3), described oil hydraulic pump (3) connects motor (4), described first relief valve (7) is connected between oil hydraulic pump (3) and fuel tank (1) as safety valve, and the first relief valve (7) is parallel to the two ends of oil hydraulic pump (3), the return opening of tested multi-way valve (16) is connected with fuel tank (1) by oil circuit, oil circuit is connected in series successively connection second relief valve (14) and one-way valve (12), the two ends of described one-way valve (12) are connected in parallel, the working port one of described cartridge valve (8) is connected to the oil passage between oil hydraulic pump (3) and tested multi-way valve (16), the working port two of described cartridge valve (8) connects throttle valve (9), the working port three of described cartridge valve (8) is connected to fuel tank (1), the working port one of described two position, three-way electromagnetic change valve (10) is connected to described throttle valve (9), the working port two of described two position, three-way electromagnetic change valve (10) passes through oil passage and is connected with tested multi-way valve, working port three is connected with fuel tank (1) by oil circuit.
2. multi-way valve test bench transient pressure oil supply system as claimed in claim 1, it is characterized in that, the working port two of described three-way solenoid valve (10) and the contact of oil passage are in the working port one of cartridge valve (8) and between the contact of oil passage and tested multi-way valve (16).
3. multi-way valve test bench transient pressure oil supply system as claimed in claim 1, it is characterized in that, the two ends of described oil hydraulic pump (3) install the first filter (2) and the second filter (5) respectively, described first filter (2) is positioned between fuel tank (1) and oil hydraulic pump (3), and described second filter (5) is positioned at oil hydraulic pump (3) and between the first relief valve (7) and the contact of oil passage.
4. multi-way valve test bench transient pressure oil supply system as claimed in claim 2, is characterized in that, described second filter (5) and be provided with the first pressure gauge (6) between the first relief valve (7) and the contact of oil passage.
5. multi-way valve test bench transient pressure oil supply system as claimed in claim 1, it is characterized in that, described tested multi-way valve filler opening arranges the second pressure gauge (11).
6. multi-way valve test bench transient pressure oil supply system as claimed in claim 1, it is characterized in that, described tested multi-way valve oil outlet place arranges the 3rd pressure gauge (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054647.1A CN105545878A (en) | 2016-01-27 | 2016-01-27 | Transient-pressure oil supply system for multi-way valve test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054647.1A CN105545878A (en) | 2016-01-27 | 2016-01-27 | Transient-pressure oil supply system for multi-way valve test stand |
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| CN105545878A true CN105545878A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610054647.1A Pending CN105545878A (en) | 2016-01-27 | 2016-01-27 | Transient-pressure oil supply system for multi-way valve test stand |
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| CN (1) | CN105545878A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644309A (en) * | 2017-02-10 | 2017-05-10 | 中国航发沈阳发动机研究所 | Differential pressure adjusting valve testing device and testing method |
| CN107165877A (en) * | 2017-06-14 | 2017-09-15 | 燕山大学 | A kind of big orifice extra-high voltage liquid proportional inserted valve dynamic performance and testing |
| CN110778556A (en) * | 2019-11-05 | 2020-02-11 | 燕山大学 | High-pressure multi-way valve reliability test bench and test method based on same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644309A (en) * | 2017-02-10 | 2017-05-10 | 中国航发沈阳发动机研究所 | Differential pressure adjusting valve testing device and testing method |
| CN106644309B (en) * | 2017-02-10 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of tune differential pressure valve experimental rig and test method |
| CN107165877A (en) * | 2017-06-14 | 2017-09-15 | 燕山大学 | A kind of big orifice extra-high voltage liquid proportional inserted valve dynamic performance and testing |
| CN107165877B (en) * | 2017-06-14 | 2018-07-27 | 燕山大学 | A kind of big orifice extra-high voltage liquid proportional inserted valve dynamic performance and testing |
| CN110778556A (en) * | 2019-11-05 | 2020-02-11 | 燕山大学 | High-pressure multi-way valve reliability test bench and test method based on same |
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Application publication date: 20160504 |