CN210739000U - Valve block of multifunctional large-flow interval multi-way valve test hydraulic loading system - Google Patents
Valve block of multifunctional large-flow interval multi-way valve test hydraulic loading system Download PDFInfo
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- CN210739000U CN210739000U CN201921169411.8U CN201921169411U CN210739000U CN 210739000 U CN210739000 U CN 210739000U CN 201921169411 U CN201921169411 U CN 201921169411U CN 210739000 U CN210739000 U CN 210739000U
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Abstract
The utility model relates to an interval multiple unit valve test hydraulic loading system's of multi-functional large-traffic valve block, through the coordinated control to valve block plug-in components, can realize the A1-T, B1-T of multiple unit valve simply connected, the cooperation is by test piece P1-A1-B1-T, also can realize by the A1 of loading valve block, B1 is direct to being provided pressure by the test piece, the stable oil supply of flow, can P1 during outside fuel feeding, the double-source confluence of P2, can also be by P1' to being supplied oil by the test piece, by A2, B2 carries out the loading, multiple mode loading such as the oil mass difference condition of realizing by the test piece actual behavior in order to simulate. The utility model adopts the above technical scheme flow coverage is wide, has solved the problem that a plurality of test items need take over many times in the test procedure effectively, reduces work load, reduces the pollution to hydraulic system, has improved production efficiency. The use working condition of the multi-way valve double-pump source is considered, and the universal applicability is realized.
Description
Technical Field
The utility model belongs to the technical field of hydraulic test system, especially, relate to a valve block of multi-functional large-traffic interval multiple unit valve test hydraulic loading system.
Background
At present, a multi-way valve research and development and delivery test bed has a large flow interval, the requirements on flow and pressure are stable, and the requirement on test precision in the flow interval is also very high. However, because the multi-way valve has a plurality of oil ports and a large flow change interval, a plurality of test projects require that all working ports are subjected to tests in three aspects of pressure resistance, leakage and functions. In a conventional test bed function test, oil is generally supplied by a pump source and enters the loading valve block from a tested piece working oil port A, B. However, when pressure and leakage tests are performed, the line needs to be replaced to actively load the working port. Therefore, the pipeline needs to be replaced for many times in the whole testing process, a large amount of manpower is consumed, the testing efficiency is reduced, and the problem to be solved urgently is solved.
Disclosure of Invention
The utility model discloses a solve the technical problem that exists among the well-known technology and provide a multi-functional large-traffic interval multiple unit valve test hydraulic loading system's valve piece, avoided the puzzlement of changing the pipeline many times, still possess the valve piece of multiple loading modes such as initiative and passive loading, considered the use operating mode of the two pump sources confluence of multiple unit valve.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be:
a valve block of a multifunctional large-flow interval multi-way valve test hydraulic loading system comprises a first electromagnetic ball valve communicated with a P1 through an oil path, a P1 port is connected with a test pump source, a P1' is connected with a P1 port of a tested piece, a P1' port high-pressure stop valve, a P1 is communicated with a P1', an A1 and a B1 port of the valve block are connected with an A, B working oil port of the tested piece, a T port oil return tank is arranged, a Tt port is a safety valve oil return port, a loading bridge path comprises a first check valve, a second electromagnetic ball valve, a third electromagnetic ball valve and a proportional overflow valve, the first check valve, the second check valve, the third electromagnetic ball valve and the second electromagnetic ball valve are sequentially connected to form a loop, the first check valve is connected with the first check valve and the second check valve of a loading bridge circuit, a path between the first check valve and the third electromagnetic ball valve is connected with the proportional overflow valve, the proportional overflow valve is respectively connected with a second three-way electromagnetic valve and a first three-way electromagnetic ball valve to form a proportional overflow valve passage, the second three-way electromagnetic valve is communicated with the T, the first three-way electromagnetic ball valve is respectively connected with a large-range flow meter and a small-range flow meter, an overflow valve and a pressure sensor are arranged on one side of the first three-way electromagnetic ball valve on the proportional overflow valve passage, the overflow valve is connected with the Tt, a passage between a first check valve and a second electromagnetic ball valve of a loading bridge circuit is communicated with A1, and a passage between the second check valve and a third electromagnetic ball valve of the loading bridge circuit is communicated with B1.
Furthermore, the hydraulic loading valve blocks are divided into two groups, and the P1 and the P2 between the two groups are communicated.
Furthermore, in the loading bridge circuit, the three-way electromagnetic ball valve is a switch for switching the valve block to measure the flow rate of oil passing through the main oil way, when the valve does not act, the wide-range flow meter can measure the flow rate of the oil passing through the main oil way in any large-flow loading mode, and when the valve acts electrically, the small-range flow meter measures the flow below 20L/min.
Through linkage control of valve block inserts, the single-connection A1-T, B1-T of the multi-way valve can be realized, the single-connection A1-T, B1-T is matched with a tested piece P1-A1-B1-T, an oil source with stable pressure and flow can be directly provided for the tested piece by A1 and B1 of a loading valve block, double-source confluence of P1 and P2 can be realized during outward oil supply, oil can be supplied for the tested piece by P1', loading is carried out by A2 and B2, and loading in multiple modes such as oil quantity distinguishing conditions of actual working conditions of the tested piece is simulated and realized. The utility model adopts the above technical scheme solve the problem that large-traffic interval multiple unit valve speed is slower, a plurality of test items need take over many times in the test procedure effectively, reduce work load, reduce the pollution to hydraulic system, improved efficiency of software testing.
The utility model has the advantages and positive effects that: because the utility model adopts the above technical scheme the problem that work load is big, efficiency is slower among the test of having solved large-traffic interval multiple unit valve test hydraulic loading system effectively has improved production efficiency, has considered the use operating mode of the double pump source confluence of multiple unit valve, has general suitability.
Drawings
Fig. 1 is a control schematic diagram of the present invention.
In the figure: 1. the system comprises a first electromagnetic ball valve, a second electromagnetic ball valve, an overflow valve, a first check valve, a second electromagnetic ball valve, a third electromagnetic ball valve, a pressure sensor, a first three-way electromagnetic ball valve, a wide-range flow meter, a proportional overflow valve, a small-range flow meter and a second three-way electromagnetic ball valve, wherein the first electromagnetic ball valve is 2, the first check valve is 3, the second check valve is 4, the second electromagnetic ball valve is 5, the third electromagnetic ball valve is 6, the pressure sensor is 7.
Detailed Description
For further understanding of the contents, features and functions of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:
referring to fig. 1, a valve block of a multifunctional large-flow interval multi-way valve test hydraulic loading system comprises a first electromagnetic ball valve 1 communicated with a P1 through an oil path, a P1 port is connected with a test pump source, a P1' is connected with a P1 port of a tested piece, a P1' port high-pressure stop valve, a P1 is communicated with a P1', an A1 and a B1 port of the valve block are connected with an A, B working oil port of the tested piece, a T port oil return tank is arranged, a Tt port is a safety valve oil return port, a loading bridge is composed of a first check valve 3, a second check valve 4, a second electromagnetic ball valve 5, a third electromagnetic ball valve 6 and a proportional overflow valve 10, the first check valve 3, the second check valve 4, the third electromagnetic ball valve 6 and the second electromagnetic ball valve 5 are sequentially connected to form a loop, the first electromagnetic ball valve 1 is connected with the first check valve 3 and the second check valve 4, and the third electromagnetic ball valve 6 are connected with each other in a channel, the first check valve 3, the second, The passage between the second electromagnetic ball valves 5 is connected with the passage of a proportional overflow valve 10, the proportional overflow valve 10 is respectively connected with a second three-way electromagnetic valve 12 and a first three-way electromagnetic ball valve 8 to form a passage of the proportional overflow valve 10, the second three-way electromagnetic valve 12 is communicated with T, the first three-way electromagnetic ball valve 8 is respectively connected with a large-range flowmeter 9 and a small-range flowmeter 11, one side of the first three-way electromagnetic ball valve 8 on the passage of the proportional overflow valve 10 is provided with an overflow valve 2 and a pressure sensor 7, the overflow valve 2 is connected with Tt, the passage between the first check valve 3 and the second electromagnetic ball valve 5 of the loading bridge circuit is communicated with A1, and the passage between the second check valve 4 and the third electromagnetic ball valve 6 of the loading bridge circuit is communicated with.
Furthermore, the hydraulic loading valve blocks are divided into two groups, and the P1 and the P2 between the two groups are communicated.
In the above structure, the first electromagnetic ball valve 1 may be opened to determine passive loading, and may be closed to determine passive loading.
In the above structure, the proportional relief valve 10 is a loading unit.
In the structure, the three-way electromagnetic ball valve 08 is electrified in a large flow state, and the measurement is determined by a wide-range flow meter 09; 08 is reset in the low flow state and the pressure oil is measured through 11.
In the above structure, the three-way electromagnetic ball valve 12 is controlled as an oil return control valve, and oil can be directly returned without pressure inside the three-way electromagnetic ball valve or directly returned to the working cavity without flow loss.
When the three-way electromagnetic ball valve 12 is reset, the first electromagnetic ball valve 1 can be matched with the electric action to directly provide an oil source with controllable pressure and flow to the tested piece A, B through P1/P2.
The utility model discloses a theory of operation is:
1. taking P1 sets of valve groups as an example, single oil source loading is introduced: the port P1 is connected with a test pump source, the port P1' is connected with the port P1 of the tested object, and the working ports A1/B1 are connected with the working ports A1/B1 of the tested object. When the first electromagnetic ball valve 1 is reset, the pump source oil is directly output from the P1' to the P1 port of the tested piece, and the high-pressure oil returning from the A1/B1 port of the tested piece enters a loading bridge circuit through the first check valve 3/the second check valve 4. When the second three-way electromagnetic ball valve 12 is powered on to act, passive loading of a tested piece P1-A1-internal T or a tested piece P1-B1-internal T can be realized; when the second three-way electromagnetic ball valve 12 is reset and is matched with the second electromagnetic ball valve 5/the third electromagnetic ball valve 6 to be powered on to act, the functions of powering on the tested piece P1-A1-B1-the tested piece T or the tested piece P1-B1-A1-the tested piece T and finally returning oil from the port of the tested piece T can be realized, the first three-way electromagnetic ball valve 8 is powered on, the large-range flow meter 9 measures large-flow loading flow, the first three-way electromagnetic ball valve 8 is reset, and the small-range flow meter 11 measures small-flow loading flow; when the first electromagnetic ball valve 1 is electrified and the stop valve of the port P1' is closed, the second electromagnetic ball valve 5 or the third electromagnetic ball valve 6 is electrified, and the pump source can directly supply oil to the working oil port A1/B1 from the bridge circuit to realize the loading to the tested piece A1-T and B1-T; the pressure sensor 7 monitors the loading pressure.
The principle of loading the P2 valve bank by a single oil source is the same as the principle;
3. dual pump confluent mode: when the P1 and the P2 supply oil simultaneously, merge and load, the P1 'and the P2' high-pressure cut-off valves are closed, the first electromagnetic ball valve 1 is selected to realize the loading of A1/B1 or A2/B2, at the moment, the second three-way electromagnetic ball valve 12 is reset, the proportional relief valve 10 is set to the highest rated pressure, and the second electromagnetic ball valve 5/the third electromagnetic ball valve 6 are selected to realize the entering of the tested piece from A1/B1 or A2/B2 of the loading bridge circuit.
The utility model discloses solved the simple efficient hydraulic pressure loading valve piece of multiple unit valve test effectively, avoided the puzzlement of changing the pipeline many times, considered the use operating mode of the two pump sources confluence of multiple unit valve, still possessed multiple loading modes such as initiative and passive loading, improved production efficiency.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides a valve block of hydraulic loading system is tested to interval multiple unit valve of multi-functional large-traffic which characterized in that: the device comprises a first electromagnetic ball valve communicated with P1 through an oil way, a P1 port is connected with a test pump source, a P1' is connected with a P1 port of a tested piece, a P1' port high-pressure stop valve, a P1 is communicated with a P1', an A1 and a B1 port of a valve block are connected with an A, B working oil port of the tested piece, a T port oil return box is connected with a Tt port which is a safety valve oil return port, a loading bridge is composed of a first check valve, a second electromagnetic ball valve, a third electromagnetic ball valve and a proportional overflow valve, the first check valve, the second check valve, the third electromagnetic ball valve and the second electromagnetic ball valve are sequentially connected to form a loop, the first electromagnetic ball valve is connected with the first check valve and the second check valve of the loading bridge, the first check valve and the second check valve are connected with each other, the third electromagnetic ball valve and the second electromagnetic ball valve are connected with the proportional overflow valve, and the proportional overflow valve is respectively connected with the second three-way and the first electromagnetic ball, the second three-way electromagnetic valve is communicated with the T, the first three-way electromagnetic ball valve is respectively connected with the large-range flowmeter and the small-range flowmeter, an overflow valve and a pressure sensor are arranged on one side of the first three-way electromagnetic ball valve on the passage of the proportional overflow valve, the overflow valve is connected with the Tt, the passage between the first one-way valve and the second electromagnetic ball valve of the loading bridge circuit is communicated with A1, and the passage between the second one-way valve and the third electromagnetic ball valve of the loading bridge circuit is communicated with B1.
2. The valve block of the multifunctional high-flow block multi-way valve test hydraulic loading system according to claim 1, wherein the hydraulic loading valve blocks are divided into two groups, and the two groups are communicated with each other through P1 and P2.
3. The valve block of the multifunctional high-flow interval multi-way valve test hydraulic loading system according to claim 1, characterized in that in the loading bridge circuit, the three-way electromagnetic ball valve is a switch for switching the valve block to measure the flow rate of oil passing through the main oil path, when the valve is not operated, the wide-range flow meter can measure the flow rate of oil passing through the main oil path in any high-flow loading mode, and when the valve is operated electrically, the small-range flow meter measures the flow rate below 20L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169411.8U CN210739000U (en) | 2019-07-23 | 2019-07-23 | Valve block of multifunctional large-flow interval multi-way valve test hydraulic loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169411.8U CN210739000U (en) | 2019-07-23 | 2019-07-23 | Valve block of multifunctional large-flow interval multi-way valve test hydraulic loading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739000U true CN210739000U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921169411.8U Active CN210739000U (en) | 2019-07-23 | 2019-07-23 | Valve block of multifunctional large-flow interval multi-way valve test hydraulic loading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739000U (en) |
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2019
- 2019-07-23 CN CN201921169411.8U patent/CN210739000U/en active Active
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