CN109443652B - Water leakage detection circuit and detection method for hydraulic test of main thrust motor of deep sea aircraft - Google Patents
Water leakage detection circuit and detection method for hydraulic test of main thrust motor of deep sea aircraft Download PDFInfo
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- CN109443652B CN109443652B CN201811538053.3A CN201811538053A CN109443652B CN 109443652 B CN109443652 B CN 109443652B CN 201811538053 A CN201811538053 A CN 201811538053A CN 109443652 B CN109443652 B CN 109443652B
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- leakage sensor
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- power supply
- end contact
- pushing motor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 34
- 230000000007 visual effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000002706 hydrostatic effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a water leakage detection circuit and a detection method for a main push motor hydraulic test of a deep sea aircraft, which solve the problems that the accuracy of detecting water leakage occurrence time is poor and the main push motor is easy to burn in the main push motor hydraulic test. The rear end contact of a leakage sensor (J1) in the sealed shell of the main pushing motor is grounded, the front end contact of the leakage sensor (J1) is connected with a control circuit power supply (V CC) through a first current limiting resistor (R1), the front end contact of the leakage sensor (J1) is connected with one end of a control coil in a relay (3), the other end of the control coil in the relay (3) is grounded, a movable end (a) of a single-pole double-throw switch in the relay (3) is connected with the positive electrode of a driving power supply (4) of the main pushing motor, and a main pushing motor (5) is connected between the negative electrode of the driving power supply (4) of the main pushing motor and a first non-movable end (b) of the single-pole double-throw switch in the relay (3). The invention can timely detect the water leakage phenomenon in the dynamic sealing device.
Description
Technical Field
The invention relates to an underwater vehicle main push motor hydraulic test, in particular to an automatic water leakage detection circuit and method in a deep sea vehicle hydraulic test.
Background
With the continuous increase of deep sea resource development, the underwater vehicle has longer and longer navigation time, larger submerging depth and higher sealing performance requirements on the vehicle, and particularly, the dynamic sealing requirements on the main pushing motor at the tail end of the vehicle are higher and higher. When the deep sea operation is performed, once the main pushing motor of the aircraft leaks, a large amount of water is injected into the cabin of the aircraft in a short time due to the ultra-large pressure intensity of the deep sea, so that the aircraft generates strong negative buoyancy, the aircraft is accelerated to sink until the bottom, the aircraft cannot be salvaged and recovered, and the whole deep sea operation fails. The main pushing motor of the aircraft needs to be subjected to a dynamic sealing test before leaving the factory so as to test the dynamic sealing performance of the main pushing motor; the existing dynamic seal test of the main propulsion motor of the aircraft is carried out in a pressure axe, in the test process, the pressure axe is set to be different pressures, the main propulsion motor of the aircraft is put into a pressure kettle, and the main propulsion motor of the aircraft is enabled to rotate for a long time at different rotating speeds so as to simulate the running conditions of the motor of the aircraft at different deep seas; in the process of the test, a tester needs to detect the water leakage condition of the main pushing motor of the aircraft at regular time so as to determine the accurate time of the water leakage of the main pushing motor, and provide first hand data for the performance analysis of the dynamic seal of the main pushing motor; in addition, the phenomenon that the main pushing motor burns out is easy to occur because the main pushing motor is not found out in time when water leaks.
Disclosure of Invention
The invention provides a water leakage detection circuit and a detection method for a main push motor hydraulic test of a deep sea aircraft, which solve the technical problems that the accuracy of detecting water leakage occurrence time is poor and the main push motor is easy to burn in the main push motor hydraulic test.
The invention solves the technical problems by the following technical proposal:
The utility model provides a deep sea aircraft owner pushes away motor hydrostatic test leak detection circuitry, including owner pushes away the motor, the weeping sensor that sets up in the airtight casing of owner pushes away the motor, control circuit power supply, the time-recorder, relay and audible and visual alarm, the rear end contact ground of weeping sensor, the front end contact of weeping sensor links together with control circuit power through first current limiting resistor, the front end contact of weeping sensor links together with one end of the control coil in the relay, the other end ground of the control coil in the relay, the movable end of single-pole double-throw switch in the relay links together with the positive pole of owner pushing away motor drive power supply, be connected with owner pushing away the motor between the negative pole of owner pushing away motor drive power supply and the first fixed end of single-pole double-throw switch in the relay, be connected with audible and visual alarm between the negative pole of owner pushing away motor drive power supply and the second fixed end of single-pole double-throw switch; the front-end contact of the leakage sensor is connected with a logic NOT gate, and the output end of the logic NOT gate is connected with a timer.
The main pushing motor is characterized in that a second liquid leakage sensor and a third liquid leakage sensor are further arranged in the main pushing motor sealed shell respectively, a rear end contact of the second liquid leakage sensor is grounded, a front end contact of the second liquid leakage sensor is connected with a control circuit power supply through a second current limiting resistor, a rear end contact of the third liquid leakage sensor is grounded, and a front end contact of the third liquid leakage sensor is connected with the control circuit power supply through a third current limiting resistor.
A water leakage detection circuit method for a main push motor hydraulic test of a deep sea aircraft comprises the following steps:
The method comprises the steps that a liquid leakage sensor is arranged in a sealed shell of a main pushing motor, a rear end contact of the liquid leakage sensor is grounded, a front end contact of the liquid leakage sensor is connected with a control circuit power supply through a first current limiting resistor, the front end contact of the liquid leakage sensor is connected with one end of a control coil in a relay, the other end of the control coil in the relay is grounded, a movable end of a single-pole double-throw switch in the relay is connected with a positive pole of a driving power supply of the main pushing motor, the main pushing motor is connected between a negative pole of the driving power supply of the main pushing motor and a first fixed end of the single-pole double-throw switch in the relay, and an audible and visual alarm is connected between a negative pole of the driving power supply of the main pushing motor and a second fixed end of the single-pole double-throw switch; a logic NOT gate is connected to the front-end contact of the liquid leakage sensor, and a timer is connected to the output end of the logic NOT gate;
secondly, placing a main pushing motor into the pressure kettle, switching on a control circuit power supply, powering on a control coil in a relay, connecting a movable end of a single-pole double-throw switch with a first fixed end of the single-pole double-throw switch, starting rotation of the main pushing motor, starting a dynamic seal test, enabling a front-end contact of a liquid leakage sensor to be high level, enabling an output end of a logic NOT gate to be low level, and starting a timer to time at low level;
and thirdly, when water enters the sealed shell of the main pushing motor, the front end contact and the rear end contact of the liquid leakage sensor are communicated, the front end contact of the liquid leakage sensor is changed from high level to low level, the control coil in the relay is powered off, the movable end of the single-pole double-throw switch is connected with the second fixed end of the single-pole double-throw switch, the power supply of the main pushing motor is cut off, the audible and visual alarm is powered on, meanwhile, the output end of the logic NOT gate is high level, and the high level stops the timing of the timer, so that the water inlet time of the main pushing motor is accurately obtained, and the power supply of the main pushing motor is cut off in time.
The invention has the characteristics of simple structure, small volume and high reliability, can timely detect the water leakage phenomenon in the dynamic sealing device, simultaneously eliminates the hidden trouble that the main pushing motor is burnt, and simplifies the complexity of the dynamic sealing test.
Drawings
Fig. 1 is a schematic circuit configuration of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
The water leakage detection circuit for the hydraulic test of the main propulsion motor of the deep sea aircraft comprises a main propulsion motor 5, a liquid leakage sensor J1, a control circuit power supply V CC, a timer 1, a relay 3 and an audible and visual alarm 5, wherein the liquid leakage sensor J1 is arranged in a closed shell of the main propulsion motor, a rear end contact of the liquid leakage sensor J1 is grounded, a front end contact of the liquid leakage sensor J1 is connected with the control circuit power supply V CC through a first current limiting resistor R1, a front end contact of the liquid leakage sensor J1 is connected with one end of a control coil in the relay 3, the other end of the control coil in the relay 3 is grounded, a movable end a of a single-pole double-throw switch in the relay 3 is connected with the positive electrode of a main propulsion motor driving power supply 4, the main propulsion motor 5 is connected between a negative electrode of the main propulsion motor driving power supply 4 and a first non-movable end b of the single-pole double-throw switch in the relay 3, and the audible and visual alarm 6 is connected between the negative electrode of the main propulsion motor driving power supply 4 and a second non-movable end c of the single-pole double-throw switch; the front end contact of the leakage sensor J1 is connected with a logic NOT gate 2, and the output end of the logic NOT gate 2 is connected with a timer 1.
The main pushing motor is characterized in that a second leakage sensor J2 and a third leakage sensor J3 are further arranged in the main pushing motor sealed shell respectively, a rear end contact of the second leakage sensor J2 is grounded, a front end contact of the second leakage sensor J2 is connected with a control circuit power supply V CC through a second current limiting resistor R2, a rear end contact of the third leakage sensor J3 is grounded, and a front end contact of the third leakage sensor J3 is connected with the control circuit power supply V CC through a third current limiting resistor R3.
A water leakage detection circuit method for a main push motor hydraulic test of a deep sea aircraft comprises the following steps:
The method comprises the steps that a liquid leakage sensor J1 is arranged in a sealed shell of a main pushing motor, a rear end contact of the liquid leakage sensor J1 is grounded, a front end contact of the liquid leakage sensor J1 is connected with a control circuit power supply V CC through a first current limiting resistor R1, the front end contact of the liquid leakage sensor J1 is connected with one end of a control coil in a relay 3, the other end of the control coil in the relay 3 is grounded, a movable end a of a single-pole double-throw switch in the relay 3 is connected with an anode of a main pushing motor driving power supply 4, a main pushing motor 5 is connected between a cathode of the main pushing motor driving power supply 4 and a first non-movable end b of the single-pole double-throw switch in the relay 3, and an audible and visual alarm 6 is connected between a cathode of the main pushing motor driving power supply 4 and a second non-movable end c of the single-pole double-throw switch; the front-end contact of the leakage sensor J1 is connected with a logic NOT gate 2, and the output end of the logic NOT gate 2 is connected with a timer 1;
Secondly, placing a main pushing motor into the autoclave, switching on a control circuit power supply V CC, powering on a control coil in the relay 3, connecting a movable end a of a single-pole double-throw switch with a first fixed end b of the single-pole double-throw switch, starting rotation of the main pushing motor 5, starting a dynamic seal test, enabling a front-end contact of a leakage sensor J1 to be at a high level, enabling an output end of a logic NOT gate 2 to be at a low level, and starting a timer 1 to time at the low level;
And thirdly, when water enters the sealed shell of the main push motor, the front end contact and the rear end contact of the liquid leakage sensor J1 are communicated, the front end contact of the liquid leakage sensor J1 is changed from high level to low level, the control coil in the relay 3 is powered off, the movable end a of the single-pole double-throw switch is connected with the second fixed end c of the single-pole double-throw switch, the power supply of the main push motor 5 is cut off, the audible and visual alarm 6 is powered on, meanwhile, the output end of the logic NOT gate 2 is high level, and the high level stops the timing of the timer 1, so that the water inlet time of the main push motor is accurately obtained, and the power supply of the main push motor is cut off in time.
Claims (1)
1. The water leakage detection method for the hydraulic test of the main propulsion motor of the deep sea aircraft is carried out through a water leakage detection circuit for the hydraulic test of the main propulsion motor of the deep sea aircraft, and comprises a main propulsion motor (5), a water leakage sensor (J1) arranged in a closed shell of the main propulsion motor, a control circuit power supply (V CC), a timer (1), a relay (3) and an audible and visual alarm (5), wherein the rear end contact of the water leakage sensor (J1) is grounded, the front end contact of the water leakage sensor (J1) is connected with a control circuit power supply (V CC) through a first current limiting resistor (R1), the front end contact of the water leakage sensor (J1) is connected with one end of a control coil in the relay (3), the other end of the control coil in the relay (3) is grounded, the active end (a) of a single-pole double-throw switch in the relay (3) is connected with the positive electrode of a main propulsion motor driving power supply (4), and the single-pole double-throw switch (6) in the relay (3) is not connected with the negative electrode (6) of the single-pole switch (4); a logic NOT gate (2) is connected to the front end contact of the liquid leakage sensor (J1), and a timer (1) is connected to the output end of the logic NOT gate (2); the main pushing motor sealed shell is also respectively provided with a second leakage sensor (J2) and a third leakage sensor (J3), the rear end contact of the second leakage sensor (J2) is grounded, the front end contact of the second leakage sensor (J2) is connected with a control circuit power supply (V CC) through a second current limiting resistor (R2), the rear end contact of the third leakage sensor (J3) is grounded, and the front end contact of the third leakage sensor (J3) is connected with the control circuit power supply (V CC) through a third current limiting resistor (R3); the method is characterized by comprising the following steps of:
The method comprises the steps that a liquid leakage sensor (J1) is arranged in a sealed shell of a main pushing motor, a rear end contact of the liquid leakage sensor (J1) is grounded, a front end contact of the liquid leakage sensor (J1) is connected with a control circuit power supply (V CC) through a first current limiting resistor (R1), the front end contact of the liquid leakage sensor (J1) is connected with one end of a control coil in a relay (3), the other end of the control coil in the relay (3) is grounded, a movable end (a) of a single-pole double-throw switch in the relay (3) is connected with an anode of a main pushing motor driving power supply (4), a main pushing motor (5) is connected between a cathode of the main pushing motor driving power supply (4) and a first non-movable end (b) of the single-pole double-throw switch in the relay (3), and an audible and visual alarm (6) is connected between the cathode of the main pushing motor driving power supply (4) and a second non-movable end (c) of the single-pole double-throw switch; a logic NOT gate (2) is connected to the front end contact of the liquid leakage sensor (J1), and a timer (1) is connected to the output end of the logic NOT gate (2);
Secondly, placing a main pushing motor into the autoclave, switching on a control circuit power supply (V CC), powering on a control coil in a relay (3), connecting a moving end (a) of a single-pole double-throw switch with a first fixed end (b) of the single-pole double-throw switch, starting a main pushing motor (5) to rotate, starting a dynamic seal test, simultaneously, enabling a front-end contact of a liquid leakage sensor (J1) to be high level, enabling an output end of a logic NOT gate (2) to be low level, and starting a timer (1) to time at the low level;
And thirdly, when water enters the sealed shell of the main pushing motor, the front end contact of the liquid leakage sensor (J1) is communicated with the rear end contact, the front end contact of the liquid leakage sensor (J1) is changed from high level to low level, the control coil in the relay (3) is powered off, the movable end (a) of the single-pole double-throw switch is connected with the second fixed end (c) of the single-pole double-throw switch, the power supply of the main pushing motor (5) is cut off, the audible and visual alarm (6) is powered on, meanwhile, the output end of the logic NOT gate (2) is high level, and the high level stops the timing of the timer (1), so that the water inlet time of the main pushing motor is accurately obtained, and the power supply of the main pushing motor is cut off in time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811538053.3A CN109443652B (en) | 2018-12-16 | 2018-12-16 | Water leakage detection circuit and detection method for hydraulic test of main thrust motor of deep sea aircraft |
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| CN201811538053.3A CN109443652B (en) | 2018-12-16 | 2018-12-16 | Water leakage detection circuit and detection method for hydraulic test of main thrust motor of deep sea aircraft |
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| CN109443652A CN109443652A (en) | 2019-03-08 |
| CN109443652B true CN109443652B (en) | 2024-04-26 |
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| CN110108250B (en) * | 2019-05-18 | 2023-12-19 | 山西汾西重工有限责任公司 | Automatic testing device and testing method for release angle of mechanical protector with inclination angle |
| CN110296923B (en) * | 2019-06-20 | 2021-11-02 | 山东省水利勘测设计院 | Hydraulic engineering seepage monitoring system and method |
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