CN205404109U - Servo mechanism valve combined test platform testing arrangement - Google Patents

Abstract

A servomechanism valve comprehensive test bench test device, including an energy system, a valve test bench, and a data acquisition and display system, wherein the valve test bench uses an optical fiber sensor (3) to judge whether there is oil dripping on the component under test (1) . The test device has high precision, high efficiency, strong stability, simple operation, and greatly reduces labor time.

Description

Servo Mechanism Valve Comprehensive Test Bench Test Device

technical field

The utility model relates to the testing field of aerospace devices, in particular to a comprehensive test bench test device for a valve of a servo mechanism.

Background technique

The traditional servo mechanism valve comprehensive test bench test device is to set the pressure ≥ 19.8Mpa through the proportional relief valve, and the oil through the test tooling secondary relief valve is allowed to leak oil in drops, not more than 30 drops per minute. The current technology adopts the traditional visual measurement of the number of drops, and the test bench visually measures the number of oil droplets at the relevant positions. When using the above-mentioned testing device to test valves in batches, the visual measurement results in low test efficiency, low accuracy and a lot of labor time.

Utility model content

The technical problem to be solved by the utility model is that the existing servomechanism valve comprehensive test bench test device has low efficiency, low accuracy and long labor time.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A servomechanism valve comprehensive test bench test device includes an energy system, a valve test bench and a data acquisition and display system. Wherein, the valve test bench uses an optical fiber sensor to determine whether there is oil dripping on the component under test.

The energy system includes a motor pump combination, a pressure flow regulating device and an oil filter device.

The motor-pump combination includes a high-pressure pump, an accumulator, a safety valve, an air cooler, and corresponding pressure sensors, flow meters, and thermometers.

The pressure flow regulating device includes an electric proportional overflow valve and an electric proportional speed regulating valve.

The oil filter device includes an oil suction filter, a pipeline filter and an oil return filter.

The energy system provides hydraulic power oil source for the valve test bench.

The valve test bench includes a tested part assembly, an interface tooling and a pressure flow droplet monitoring device.

The component under test is a secondary relief valve.

The interface tooling includes a secondary overflow valve tooling and a plug; the interface tooling is used to connect the secondary overflow valve, and after the interface tooling is connected to the secondary overflow valve, it is connected to the power oil source. Energy systems are connected.

The pressure flow drop monitoring device includes a pressure sensor, a flow meter and an optical fiber sensor.

The data acquisition and display system is composed of an electric control system, an instrument system and a digital signal acquisition system.

The electric control system is composed of PLC, industrial computer, computer display screen and power supply, and is used to control the working status of the high-pressure pump and the air cooler.

The instrument system consists of digital display and mechanical instrument display, which are used to display key parameters such as system pressure, flow rate, oil temperature, and liquid droplets.

The digital signal acquisition system collects system state parameters of pressure sensors, temperature sensors, flow meters, and optical fiber sensors, and performs online real-time monitoring of pressure flow, temperature, and droplet parameters; The performance of the test department components and their performance curves and parameters can be adjusted.

The data acquisition and display system has the functions of monitoring, recording, processing, storage and printing.

The model of the optical fiber sensor is FS-N11N+FU-A10.

When the servo mechanism valve comprehensive test bench test device is working, the energy device provides a safe and reliable hydraulic power oil source for the valve test bench, and the power oil source can adjust the required pressure and flow according to the requirements of the components under test. The secondary relief valve is installed in the interface tooling and plugged with a plug. The oil source enters the P port of the interface tooling through the oil inlet of the energy device. oil, drip oil through the oil drain ball valve. Judging whether there is oil dripping or not by the change of light received by the sensor head of the optical fiber sensor when there is liquid drop. The counting is carried out through the optical fiber sensor, and the data line is transmitted to the PLC, the instrument, and the industrial computer; the oil dripping situation, pressure, flow and other parameters of the valve can be clearly observed from the computer screen for real-time monitoring; at the same time, it can also be seen on the instrument Pressure, flow and other related parameters. When performing the secondary relief valve of the next tested device, the mouse can be used to click on the display screen to reset and count again.

According to the utility model, the test device of the servo mechanism valve comprehensive test bench has high precision, high efficiency, strong stability, simple operation, and greatly reduces manpower time.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the valve test bench in the comprehensive test bench testing device of the servomechanism valve of the present invention.

In the picture:

1——The component under test;

2——pressure sensor;

3 - fiber optic sensor;

4——Oil drain ball valve;

5 - Plug.

detailed description

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Figure 1, a servomechanism valve comprehensive test bench test device includes an energy system, a valve test bench and a data acquisition and display system, wherein the valve test bench uses an optical fiber sensor 3 to judge whether there is oil dripping on the component under test 1 Condition.

The energy system includes motor-pump combination, pressure flow regulator and oil filter.

The motor-pump combination includes high-pressure pumps, accumulators, safety valves, air coolers, and corresponding pressure sensors, flow meters, and thermometers.

The pressure flow regulating device includes an electric proportional overflow valve and an electric proportional speed regulating valve.

The oil filter device includes oil suction filter, line filter and oil return filter.

The energy system provides hydraulic power oil source for the valve test bench.

The valve test bench includes the tested part component 1, the interface tooling and the pressure flow droplet monitoring device.

The component under test 1 is a secondary relief valve.

The interface tooling includes the secondary overflow valve tooling and the plug 5; the interface tooling is used to connect the secondary overflow valve, and after the interface tooling is connected with the secondary overflow valve, it is connected to the energy system that provides the power oil source.

The pressure flow droplet monitoring device includes a pressure sensor 2 , a flow meter and an optical fiber sensor 3 .

The data acquisition and display system consists of an electronic control system, an instrument system and a digital signal acquisition system.

The electric control system is composed of PLC, industrial computer, computer display screen and power supply, and is used to control the working status of high-pressure pump and air cooler start and stop.

The instrument system consists of digital display and mechanical instrument display, which are used to display key parameters such as system pressure, flow, oil temperature, and liquid droplets.

The digital signal acquisition system collects the system status parameters of the pressure sensor 2, temperature sensor, flow meter, and optical fiber sensor 3, and conducts online real-time monitoring of parameters such as pressure flow, temperature, and liquid droplets; at the same time, it records the tested data during the online real-time observation test. The performance of component 1 and its performance curve and parameters can be adjusted.

The data acquisition and display system has the functions of monitoring, recording, processing, storage and printing.

The model of fiber optic sensor 3 is FS-N11N+FU-A10.

When the servo mechanism valve comprehensive test bench test device is working, the energy device provides a safe and reliable hydraulic power oil source for the valve test bench, and the power oil source can adjust the required pressure and flow according to the requirements of the components under test. The secondary relief valve is installed in the interface tooling and plugged with a plug. The oil source enters the P port of the interface tooling through the oil inlet of the energy device. Oil, 4 drops of oil through the oil drain ball valve. Whether there is oil drop is judged by the change of light received by the sensing head of the optical fiber sensor 3 when there is liquid drop. The counting is performed by the optical fiber sensor 3, and the data line is transmitted to the PLC, the instrument, and the industrial computer; the oil dripping situation, pressure, flow and other parameters of the valve can be clearly observed from the computer screen for real-time monitoring; at the same time, it can also be seen on the instrument to pressure, flow and other related parameters. When performing the secondary relief valve of the next tested device, the mouse can be used to click on the display screen to reset and count again.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model are included in the protection scope of the present utility model.

Claims (6)

1. A servomechanism valve comprehensive test bench test device, including energy system, valve test bench and data acquisition and display system, is characterized in that: The valve test bench uses an optical fiber sensor (3) to determine whether there is oil dripping on the component under test (1). 2. The comprehensive test bench testing device for servomechanism valves according to claim 1, characterized in that: The energy system includes a motor pump combination, a pressure flow regulating device and an oil filter device; The motor-pump combination includes a high-pressure pump, an accumulator, a safety valve, an air cooler, and corresponding pressure sensors, flow meters, and thermometers; The pressure flow regulating device includes an electric proportional overflow valve and an electric proportional speed regulating valve; The oil filter device includes an oil suction filter, a pipeline filter and an oil return filter; The energy system provides hydraulic power oil source for the valve test bench. 3. The servomechanism valve comprehensive test bench testing device according to claim 2, characterized in that: The valve test bench includes a component under test (1), an interface tooling, and a pressure flow droplet monitoring device; The component under test (1) is a secondary relief valve; The interface tooling includes a secondary relief valve tooling and a plug (5); The interface tooling is used to connect to the secondary overflow valve, and the interface tooling is connected to the energy system after being connected to the secondary overflow valve; The pressure flow droplet monitoring device includes a pressure sensor (2), a flow meter and the optical fiber sensor (3). 4. The comprehensive test bench testing device for servomechanism valves according to claim 3, characterized in that: The data acquisition and display system is composed of an electric control system, an instrument system and a digital signal acquisition system; The electric control system is composed of PLC, industrial computer, computer display screen, and power supply, and is used to control the working state of the high-pressure pump and the start and stop of the air cooler; The instrument system consists of digital display and mechanical instrument display, which are used to display system pressure, flow rate, oil temperature, and key parameters of liquid droplets; The digital signal acquisition system collects the system status parameters of the pressure sensor (2), temperature sensor, flow meter, and optical fiber sensor (3), and performs online real-time monitoring of pressure flow, temperature, and droplet parameters; simultaneously records online real-time observations During the test, the performance of the component under test (1) and its performance curve and parameters can be adjusted. 5. The servomechanism valve comprehensive test bench testing device according to claim 4, characterized in that: The data acquisition and display system has the functions of monitoring, recording, processing, storage and printing. 6. The servo mechanism valve comprehensive test bench test device according to any one of claims 1-5, characterized in that: The model of the optical fiber sensor (3) is FS-N11N+FU-A10.