Flow control valve test board

Abstract

The utility model provides a flow control valve testboard, which comprises a testboard body, a panel and a backboard, and is characterized in that the panel comprises a man-machine interaction area provided with a display touch screen; the current display area is provided with an ampere meter; the power supply detection area is provided with a power supply detection jack; the current detection area is provided with a current detection jack connected with the ampere meter; the DPS detection area is provided with a DPS detection jack; the PIPS detection area is provided with a PIPS detection jack; and the timing detection area is provided with a timing detection jack. The test board is simple in structure, high in applicability and low in price, a large amount of cost is reduced, and benefits are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of testing and repairing flow control valves, in particular to a flow control valve testing platform. Background Art

[0002] At present, the flow control valves of P / N: 1806 series and the pressure regulating valves of P / N: 746Aseries produced by LIEBHERR in the Airbus series are both electrically controlled and pneumatically actuated butterfly valves.

[0003] The 1806series valve has two analog pressure sensors: an inlet pressure sensor (PIPS) and a differential pressure sensor (DPS); an electric torque motor for main mode adjustment; a pneumatic pressure regulator for standby mode adjustment; two solenoid valves: an ON / OFF solenoid valve (when powered: in the ON position) and a mode selection solenoid valve that can switch between main mode and standby mode (when powered: in the standby mode); position indication through a dual-channel sensor, etc.

[0004] The pressure regulating valve of 746Aseries is equipped with solenoid valve assembly, micro switch assembly, pressure control valve assembly with solenoid valve and other components.

[0005] Function: This flow control valve is used to regulate the airflow from the engine, auxiliary power unit (APU) or ground supply to the air conditioning pack. It provides the air flow required by the air conditioning system to ensure cabin pressurization and passenger comfort.

[0006] In the actual testing process, electrical signals are required to operate these components accordingly, so that the valve can be actuated and the parameters can be monitored during the operation to complete the test and check whether the test parameter values ​​meet the release standards. There is no special testing equipment in China that can complete the relevant test operations and requirements.

[0007] According to the study of relevant information, it is known that LIEBHERR's test box P / N: 99380A010000, P / N: 52234A1000-01, P / N: 52271F0000-01, P / N: 3351A0000-02 can complete a certain function in the test process or complete the test requirements of one of the part numbers. If you want to complete all the tests of the valve, you must purchase these devices at the same time. However, the price of each device is high, and the use of these devices is highly targeted, with a narrow range, and low versatility and practicality. They cannot be used alone or meet the tests of more other part numbers. Utility Model Content

[0008] The utility model provides a flow control valve test bench, which solves the problems of high price, strong pertinence and narrow application range of LIEBHERR test equipment, and can expand the range of test part numbers, not only completing the test of one part number (can test: flow control valves 1806D0000-02, 1806D0000-01 and pressure regulating valves 746A0000-06 of multiple part numbers), has a simple structure, high applicability and low price, thus reducing a lot of costs and increasing benefits.

[0009] The embodiment of the present specification discloses a flow control valve test bench, including a test bench body, a panel arranged at the front end of the test bench body, and a back plate arranged at the rear end of the test bench body, wherein the panel includes:

[0010] The human-computer interaction area is equipped with a display touch screen;

[0011] The current display area is equipped with an ammeter;

[0012] The power supply detection area is equipped with a power supply detection socket;

[0013] A current detection area is provided with a current detection jack connected to the ammeter;

[0014] The DPS detection area is equipped with a DPS detection socket;

[0015] The PIPS detection area is equipped with a PIPS detection socket;

[0016] The timing detection area is provided with a timing detection socket;

[0017] Among them, the power supply detection jack is connected to the internal circuit of the test bench body to detect the power supply of the internal circuit; the DPS detection jack and the PIPS detection jack are both externally connected to a multimeter to detect the sensor output of the device under test; the timing detection jack is externally connected to an oscilloscope to detect the timing error.

[0018] In some embodiments of this specification, the backplane includes:

[0019] TO UUT connection hole connected to the device under test;

[0020] OPTICAL ENCODER connection hole for connecting to the optical encoder;

[0021] CURRENT SUPPLY connection hole for the control current output interface of the pneumatic test bench.

[0022] In some embodiments of this specification, the panel is also provided with a power button.

[0023] In some embodiments of the present specification, the back panel is also provided with a 220V power interface and a push switch matching the 220V power interface.

[0024] In some embodiments of the present specification, the internal circuit includes a 220VAC to 24VDC power module, a 24VDC to 28VDC power module, a 24VDC to 4.5VDC power module, a 24VDC to 15VDC power module, a switch K1, a switch K2, a switch K3, a switch K4, a switch K5, a connector J3, a connector J2, a connector J1, an ammeter A, an amplifier A1, and a PLC;

[0025] The 220VAC to 24VDC power module, the ammeter A and the pin L of the PLC are all connected to an external 220VAC power supply; the output ends of the 220VAC to 24VDC power module are all connected to the 24VDC to 28VDC power module, the 24VDC to 4.5VDC power module and the 24VDC to 15VDC power module, the output end of the 24VDC to 28VDC power module is connected to the power supply detection jack, one pin of the output end of the 24VDC to 28VDC power module is connected to pins 9 and 13 of the connector J3, and the other pin of the output end of the 24VDC to 28VDC power module is connected to one end of the switch K2 and one end of the switch K3, the other end of the switch K2 is connected to pin 14 of the connector J3, the other end of the switch K3 is connected to pin 18 of the connector J3, a pin of the output end of the 24VDC to 15VDC power module is connected to one end of the switch K1, another pin of the output end of the 24VDC to 15VDC power module is connected to pin 17 of the connector J3 and an interface of the PIPS detection jack, the other interface of the PIPS detection jack is connected to pin 16 of the connector J3, the other end of the switch K1 is connected to pin 15 of the connector J3, and the 24VDC to 4.5VDC power module is connected to the 15VDC pin of the 24VDC to 15VDC power module. One pin of the output end is connected to one end of the switch K5, another pin of the output end of the 24VDC to 4.5VDC power module is connected to pin 1 of the connector J3, the other end of the switch K5 is connected to pin 2 of the connector J3, pins 3 and 4 of the connector J3 are respectively connected to the two interfaces of the DPS detection socket in a one-to-one correspondence, pins 6 and 7 of the connector J3 are respectively connected to pins L0+ and L1+ of the PLC in a one-to-one correspondence, pin 21 of the connector J3 is connected to the ammeter A, one interface of the current detection socket is connected to the ammeter A, and the other interface of the current detection socket is connected to the switch K4 one end of the switch K4 is connected to pin 1 of the connector J1 and the input terminal + of the amplifier A1, the other end of the switch K4 is connected to pin 1 of the connector J1 and the input terminal + of the amplifier A1, pin 10 of the connector J3 is connected to pin 2 of the connector J1 and the input terminal - of the amplifier A1, an interface of the timing detection jack is connected to a pin - of the output end of the 220VAC to 24VDC power module, another interface of the timing detection jack is connected to pin Y3 of the PLC, the output end of the amplifier A1 is connected to pin V00 and pin AG of the PLC, and pin 1 and pin 2 of the connector J2 are respectively connected to the two pins of the output end of the 220VAC to 24VDC power module in a one-to-one correspondence.

[0026] In some embodiments of the present specification, the test bench body is configured with a 220VAC, 50Hz power supply cable.

[0027] In some embodiments of the present specification, the test bench body is configured with a cable connected to a P / N: 1806 series flow control valve.

[0028] In some embodiments of the present specification, the test bench body is configured with a cable connected to a P / N: 746 Series pressure regulating valve.

[0029] The embodiments of this specification can at least achieve the following beneficial effects:

[0030] 1. This test bench breaks through the inherent product concept that one device can only be used for one part number, and integrates the test requirements of multiple part numbers in this test bench. In actual operation, only one test device is needed to cooperate with the pressure supply station to complete all functional tests and operation controls. It is small and light and can be placed according to the test environment.

[0031] 2. This test bench can replace the original LIEBHERR test box P / N: 99380A010000, P / N: 52234A1000-01, P / N: 52271F0000-01, P / N: 3351A0000-02 special test equipment, and its accuracy and range are better than that of the original LIEBHERR test box. It uses PLC for testing and control, has a simple structure, and has very low production and maintenance costs, but can achieve greater benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the structure of the panel involved in some embodiments of the utility model.

[0034] Figure 2 It is a schematic structural diagram of the backplane involved in some embodiments of the utility model.

[0035] Figure 3 It is a partial schematic diagram of the internal circuit involved in some embodiments of the present utility model.

[0036] Figure 4 It is another partial schematic diagram of the internal circuit involved in some embodiments of the present utility model. DETAILED DESCRIPTION

[0037] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0041] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0043] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0044] like Figure 1 and Figure 2 As shown, the embodiment of this specification discloses a flow control valve test bench, including a test bench body, a panel arranged at the front end of the test bench body, and a back plate arranged at the rear end of the test bench body, wherein the panel includes:

[0045] The human-computer interaction area is equipped with a display touch screen (LED);

[0046] The current display area is equipped with an ammeter (A);

[0047] The power supply detection area is equipped with a power supply detection jack (+28VDC CHECK);

[0048] A current detection area, provided with a current detection jack (TORQUE MOTORCURRENT) connected to the ammeter;

[0049] DPS detection area, equipped with DPS detection socket (DPS);

[0050] PIPS detection area, equipped with PIPS detection socket (PIPS);

[0051] The timing detection area is equipped with a timing detection jack (TIMER CALIBRATION);

[0052] Among them, the power supply detection jack is connected to the internal circuit of the test bench body to detect the power supply of the internal circuit; the DPS detection jack and the PIPS detection jack are both externally connected to a multimeter to detect the sensor output of the device under test; the timing detection jack is externally connected to an oscilloscope to detect the timing error.

[0053] In some embodiments, the backplane comprises:

[0054] TO UUT connection hole connected to the device under test (TO UUT);

[0055] OPTICAL ENCODER connection hole for connecting to the optical encoder (OPTICAL ENCODER);

[0056] CURRENT SUPPLY connection hole (CURRENT SUPPLY) for the control current output interface of the pneumatic test bench.

[0057] In some embodiments, the panel is also provided with a power button (P1).

[0058] In some embodiments, the back panel is also provided with a 220V power interface (220V) and a push switch (SW) matching the 220V power interface.

[0059] In some embodiments, Figure 3 and Figure 4 As shown, the internal circuit includes a 220VAC to 24VDC power module, a 24VDC to 28VDC power module, a 24VDC to 4.5VDC power module, a 24VDC to 15VDC power module, a switch K1, a switch K2, a switch K3, a switch K4, a switch K5, a connector J3, a connector J2, a connector J1, an ammeter A, an amplifier A1 and a PLC;

[0060] The 220VAC to 24VDC power module, the ammeter A and the pin L of the PLC are all connected to an external 220VAC power supply; the output ends of the 220VAC to 24VDC power module are all connected to the 24VDC to 28VDC power module, the 24VDC to 4.5VDC power module and the 24VDC to 15VDC power module, the output end of the 24VDC to 28VDC power module is connected to the power supply detection jack, one pin of the output end of the 24VDC to 28VDC power module is connected to pins 9 and 13 of the connector J3, and the other pin of the output end of the 24VDC to 28VDC power module is connected to one end of the switch K2 and one end of the switch K3, the other end of the switch K2 is connected to pin 14 of the connector J3, the other end of the switch K3 is connected to pin 18 of the connector J3, a pin of the output end of the 24VDC to 15VDC power module is connected to one end of the switch K1, another pin of the output end of the 24VDC to 15VDC power module is connected to pin 17 of the connector J3 and an interface of the PIPS detection jack, the other interface of the PIPS detection jack is connected to pin 16 of the connector J3, the other end of the switch K1 is connected to pin 15 of the connector J3, and the 24VDC to 4.5VDC power module is connected to the 15VDC pin of the 24VDC to 15VDC power module. One pin of the output end is connected to one end of the switch K5, another pin of the output end of the 24VDC to 4.5VDC power module is connected to pin 1 of the connector J3, the other end of the switch K5 is connected to pin 2 of the connector J3, pins 3 and 4 of the connector J3 are respectively connected to the two interfaces of the DPS detection socket in a one-to-one correspondence, pins 6 and 7 of the connector J3 are respectively connected to pins L0+ and L1+ of the PLC in a one-to-one correspondence, pin 21 of the connector J3 is connected to the ammeter A, one interface of the current detection socket is connected to the ammeter A, and the other interface of the current detection socket is connected to the switch K4 one end of the switch K4 is connected to pin 1 of the connector J1 and the input terminal + of the amplifier A1, the other end of the switch K4 is connected to pin 1 of the connector J1 and the input terminal + of the amplifier A1, pin 10 of the connector J3 is connected to pin 2 of the connector J1 and the input terminal - of the amplifier A1, an interface of the timing detection jack is connected to a pin - of the output end of the 220VAC to 24VDC power module, another interface of the timing detection jack is connected to pin Y3 of the PLC, the output end of the amplifier A1 is connected to pin V00 and pin AG of the PLC, and pin 1 and pin 2 of the connector J2 are respectively connected to the two pins of the output end of the 220VAC to 24VDC power module in a one-to-one correspondence.

[0061] In some embodiments, the test bench body is configured with a 220VAC, 50Hz power supply cable.

[0062] In some embodiments, the test bench body is configured with a cable connected to a P / N: 1806 series flow control valve.

[0063] In some embodiments, the test bench body is configured with a cable connected to a P / N: 746 Series pressure regulating valve.

[0064] Figure 1 The +28VDC CHECK jack is used to detect whether the internal +28VDC power supply changes.

[0065] Digital meter A is a control current indicating instrument. The display of this instrument is for reference only. For accurate measurement, an ammeter must be connected to the TORQUEMOTOR CURRENT jack. It is only applicable to PN:1806.

[0066] DPS and PIPS are used to connect an external multimeter to check the sensor output of the UUT, and are only applicable to PN:1806.

[0067] TIMER CALIBRATION is used to check timing errors with an external oscilloscope.

[0068] Figure 2 TO UUT: connects the device under test and the test bench.

[0069] TO ENCODER: Connect to optical encoder.

[0070] CURRENT SUPPLY: Connect to the control current output interface of the pneumatic test bench. (Only for 1806 test)

[0071] NOTE: When connecting the flow control valve, use the test cable marked “PN:1806”.

[0072] When connecting the pressure regulating valve, use the test cable marked with "PN:746A".

[0073] Figure 3 and Figure 4 Among them, K1, K2, K3, K4 and K5 are all normally open contacts of different relays, and their main functions are: being controlled by PLC (that is, the coils of the corresponding relays are connected to PLC), and being used for power supply control and signal transmission.

[0074] K1—power supply for DPS and PIPS;

[0075] K2—used to connect the L mode selection switch;

[0076] K3—used to connect T ON / OFF solenoid valve;

[0077] K4—used for MT power supply;

[0078] K5—Internal electronic switch power supply.

[0079] The three interfaces after J3, DPS (ABC), PIPS (ABC), and NFC-FC (AU), are the interfaces connected to the device to be tested, and are used for output, input, control, and signal feedback respectively.

[0080] J1 is used for electronic handwheel to control torque motor.

[0081] J2 is used to connect the encoder.

[0082] In summary, the utility model can meet the following practical detection requirements:

[0083] According to the requirements of 1806D0000-02, it is necessary to perform related controls on the ON / OFF solenoid valve, mode selection valve, torque motor power supply, Hall sensor power supply, etc.; and when the valve plate of the flow control valve is at a certain required angle, it is necessary to measure the relevant current value and the required time, or measure the downstream pressure value, or monitor whether the status indication of the Hall sensor meets the requirements, as well as the test requirement values ​​for low-pressure pressure sensors, pressure limits, high-pressure pressure sensors, etc.

[0084] According to the requirements of 746A0000-06, the angle of the valve plate needs to be tested and feedback is provided.

[0085] The requirements of 1806D0000-01 require not only the related controls of ON / OFF solenoid valve, mode selection valve, torque motor power supply, Hall sensor power supply, etc., but also the related current value and required time need to be measured when the valve plate of the flow control valve is at a certain required angle, or the downstream pressure value needs to be measured, or the status indication of the Hall sensor needs to be monitored to see if it meets the requirements, as well as the test requirements for low-pressure pressure sensors, pressure limits, high-pressure pressure sensors, etc. More valve plate angles need to be tested and feedback needs to be completed.

[0086] During specific operations, you only need to refer to the required values ​​in the relevant CMM manual to set them and perform corresponding operation controls as required to complete the test.

[0087] The above embodiments describe multiple specific implementations of the present invention, but those skilled in the art should understand that various changes or modifications can be made to these implementations without departing from the principles and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.

Claims

1. A flow control valve test bench, comprising a test bench body, a panel arranged at the front end of the test bench body and a back plate arranged at the rear end of the test bench body, characterized in that: The panel comprises: The human-computer interaction area is equipped with a display touch screen; The current display area is equipped with an ammeter; The power supply detection area is equipped with a power supply detection socket; A current detection area is provided with a current detection jack connected to the ammeter; The DPS detection area is equipped with a DPS detection socket; The PIPS detection area is equipped with a PIPS detection socket; The timing detection area is provided with a timing detection socket; Among them, the power supply detection jack is connected to the internal circuit of the test bench body to detect the power supply of the internal circuit; the DPS detection jack and the PIPS detection jack are both externally connected to a multimeter to detect the sensor output of the device under test; the timing detection jack is externally connected to an oscilloscope to detect the timing error.

2. The flow control valve test bench according to claim 1, characterized in that: The back plate comprises: TO UUT connection hole connected to the device under test; OPTICAL ENCODER connection hole for connecting to the optical encoder; CURRENT SUPPLY connection hole for the control current output interface of the pneumatic test bench.

3. The flow control valve test bench according to claim 1, characterized in that: The panel is also provided with a power button.

4. The flow control valve test bench according to claim 1, characterized in that: The back panel is also provided with a 220V power interface and a push switch matched with the 220V power interface.

5. The flow control valve test bench according to claim 1, characterized in that: The internal circuit includes a 220VAC to 24VDC power module, a 24VDC to 28VDC power module, a 24VDC to 4.5VDC power module, a 24VDC to 15VDC power module, a switch K1, a switch K2, a switch K3, a switch K4, a switch K5, a connector J3, a connector J2, a connector J1, an ammeter A, an amplifier A1 and a PLC; The 220VAC to 24VDC power module, the ammeter A and the pin L of the PLC are all connected to an external 220VAC power supply; the output ends of the 220VAC to 24VDC power module are all connected to the 24VDC to 28VDC power module, the 24VDC to 4.5VDC power module and the 24VDC to 15VDC power module, the output end of the 24VDC to 28VDC power module is connected to the power supply detection jack, one pin of the output end of the 24VDC to 28VDC power module is connected to pins 9 and 13 of the connector J3, and the other pin of the output end of the 24VDC to 28VDC power module is connected to one end of the switch K2 and one end of the switch K3, the other end of the switch K2 is connected to pin 14 of the connector J3, the other end of the switch K3 is connected to pin 18 of the connector J3, a pin of the output end of the 24VDC to 15VDC power module is connected to one end of the switch K1, another pin of the output end of the 24VDC to 15VDC power module is connected to pin 17 of the connector J3 and an interface of the PIPS detection jack, the other interface of the PIPS detection jack is connected to pin 16 of the connector J3, the other end of the switch K1 is connected to pin 15 of the connector J3, and the 24VDC to 4.5VDC power module is connected to the 15VDC pin of the 24VDC to 15VDC power module. One pin of the output end is connected to one end of the switch K5, another pin of the output end of the 24VDC to 4.5VDC power module is connected to pin 1 of the connector J3, the other end of the switch K5 is connected to pin 2 of the connector J3, pins 3 and 4 of the connector J3 are respectively connected to the two interfaces of the DPS detection socket in a one-to-one correspondence, pins 6 and 7 of the connector J3 are respectively connected to pins L0+ and L1+ of the PLC in a one-to-one correspondence, pin 21 of the connector J3 is connected to the ammeter A, one interface of the current detection socket is connected to the ammeter A, and the other interface of the current detection socket is connected to the switch K4 one end of the switch K4 is connected to pin 1 of the connector J1 and the input terminal + of the amplifier A1, the other end of the switch K4 is connected to pin 1 of the connector J1 and the input terminal + of the amplifier A1, pin 10 of the connector J3 is connected to pin 2 of the connector J1 and the input terminal - of the amplifier A1, an interface of the timing detection jack is connected to a pin - of the output end of the 220VAC to 24VDC power module, another interface of the timing detection jack is connected to pin Y3 of the PLC, the output end of the amplifier A1 is connected to pin V00 and pin AG of the PLC, and pin 1 and pin 2 of the connector J2 are respectively connected to the two pins of the output end of the 220VAC to 24VDC power module in a one-to-one correspondence.

6. The flow control valve test bench according to claim 1, characterized in that: The test bench body is equipped with a 220VAC, 50Hz power supply cable.

7. The flow control valve test bench according to claim 1, characterized in that: The test bench body is equipped with a cable connected to the P / N: 1806 series flow control valve.

8. The flow control valve test bench according to claim 1, characterized in that: The test bench body is equipped with a cable connected to a P / N: 746 Series pressure regulating valve.

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