Marine electromechanical equipment fault judgment training platform

Abstract

The utility model provides a fault judgment training platform for ship electromechanical equipment, which is characterized in that lubricating oil can circulate between an oil tank and a hydraulic motor through a lubricating oil running pipeline, and the lubricating oil running pipeline is sequentially provided with a plunger pump, a first flow meter, a first sampling port, a second flow meter and a hydraulic control valve group along the oil outlet direction from the oil tank to the hydraulic motor; a hydraulic control valve group, a second sampling port and a third flow meter are sequentially arranged from the hydraulic motor to the oil tank along the oil return direction; the motor, the plunger pump and the hydraulic motor are respectively provided with at least one micro vibrator and at least one heating film which are respectively used for simulating vibration abnormal faults and temperature abnormal faults of the motor, the plunger pump and the hydraulic motor, and a vibration sensor, a temperature sensor, a noise sensor, an alarm device and an upper computer are configured. The device can simulate temperature abnormity faults and vibration abnormity faults, can be applied to visual teaching of the structure principle and operation of electromechanical equipment, and has practicality and safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ship electromechanical equipment fault judgment training platform. BACKGROUND

[0002] Ship electromechanical equipment fault type is various, fault reason and phenomenon do not exist strict corresponding relationship, actual fault position is often difficult to determine to lead to low processing efficiency, affect the safe and stable operation of electromechanical equipment.This also puts forward very high demand to the theory teaching and practical operation training of electromechanical major.

[0003] The traditional teaching of electromechanical equipment fault diagnosis, discrimination class is mainly classroom theory teaching, supplemented by corresponding animation video, with certain hands-on practice subject.Due to the temperature rise, abnormal sound, vibration aggravation etc. when electromechanical equipment exists fault, in order to better show this phenomenon, practice subject needs to rely on various experiment tables to carry out, the part of component of equipment is destroyed, utilizes actual equipment to simulate fault operation, this kind of mode can more accurately simulate fault, but there is certain difficulty and danger in implementation process, and it is more suitable for the teaching of fault mechanism and precision judgment method.

[0004] For beginners of electromechanical major, more important is to improve its learning interest, rich perceptual knowledge, understand the typical state of equipment fault, can acutely perceive the abnormal phenomenon of equipment.Using existing experiment table to simulate fault, for the display of some specific phenomenon, such as temperature rise, need to spend a period of time to run to be realized and usually not easy to control, leading to the overall sensory effect of beginner in learning process is poor, the efficiency of beginner to understand the phenomenon of equipment fault and improve fault identification ability is low. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a kind of ship electromechanical equipment fault judgment training platform, control difficulty is small, experience is good, can simulate temperature abnormal fault and vibration abnormal fault, can be applied to the intuitive teaching of electromechanical equipment structure principle and operation, with practicality and safety.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of ship electromechanical equipment fault judgment training platform, its structural characteristics are:

[0008] The lubricating oil running pipeline, oil tank and hydraulic motor are arranged on the platform, the lubricating oil can circulate between the oil tank and the hydraulic motor through the lubricating oil running pipeline, the lubricating oil running pipeline is sequentially provided with a plunger pump, a first flowmeter, a second flowmeter and a hydraulic control valve group along an oil outlet direction from the oil tank to the hydraulic motor, a first sampling port is arranged between the first flowmeter and the second flowmeter, the hydraulic control valve group, a third flowmeter and a second sampling port are sequentially arranged along an oil return direction from the hydraulic motor to the oil tank, the hydraulic control valve group is used for controlling the flow direction of the lubricating oil, the plunger pump is driven by a motor and is used for pumping the lubricating oil from the oil tank to the motor, the hydraulic motor is provided with a magnetic powder brake for simulating a load, the load size of the magnetic powder brake is adjustable through a tension controller, and the hydraulic motor is also provided with a frequency converter, and the rotating speed is adjustable through the frequency converter;

[0009] At least one micro-vibrator and at least one heating film are arranged on the motor, the plunger pump and the hydraulic motor respectively, the on-off of each micro-vibrator is independent of each other, the vibration intensity is adjustable, vibration abnormal faults of the motor, the plunger pump and the hydraulic motor are simulated through the micro-vibrators, the on-off of each heating film is independent of each other, the heating temperature is adjustable, temperature abnormal faults of the motor, the plunger pump and the hydraulic motor are simulated through the heating films, vibration sensors are arranged at the mounting positions of the micro-vibrators on the motor, the plunger pump and the hydraulic motor respectively, temperature sensors are arranged at the mounting positions of the heating films, and noise sensors are arranged at the mounting positions of the motor and the hydraulic motor;

[0010] An alarm device is arranged and used for fault alarm.

[0011] An upper computer is arranged and used for real-time receiving and display of monitored data of each sensor and flowmeter, setting of monitored threshold values of each sensor and flowmeter, on-off control of the motor and the hydraulic motor, the alarm device, each micro-vibrator and heating film, and control of the tension controller and the frequency converter by the upper computer.

[0012] The structure features of the utility model also lie in that:

[0013] The rotating speed regulation range of the hydraulic motor is 0-1500rpm.

[0014] The power supply circuit of each micro-vibrator is controlled on-off by a two-phase 220V RS485 remote intelligent control circuit breaker, and the on-off of each matched RS485 remote intelligent control circuit breaker is controlled by the upper computer.

[0015] The power supply circuit of each heating film is controlled on-off by a two-phase 220V RS485 remote intelligent control circuit breaker, and the on-off of each matched RS485 remote intelligent control circuit breaker is controlled by the upper computer.

[0016] The power supply circuit of the alarm device is controlled on and off by a two-phase 220V RS485 remote intelligent control circuit breaker, and the opening and closing of the matched RS485 remote intelligent control circuit breaker is controlled by the upper computer.

[0017] The power supply circuit of the motor and the plunger pump is controlled on and off by a three-phase 380V RS485 remote intelligent control circuit breaker, and the opening and closing of the matched RS485 remote intelligent control circuit breaker is controlled by the upper computer.

[0018] The power supply circuit of the hydraulic motor is controlled on and off by a two-phase 220V RS485 remote intelligent control circuit breaker, and the opening and closing of the matched RS485 remote intelligent control circuit breaker is controlled by the upper computer.

[0019] The alarm device is an audible and light alarm.

[0020] The motor is a three-phase asynchronous motor.

[0021] The oil tank is provided with a heating device for heating the lubricating oil in the tank, and the heating device is a resistance wire, and the heating temperature is set by the upper computer, and the matched heating circuit is provided with an air switch which can be manually switched on and off.

[0022] Ball valves for opening and closing the sampling ports are arranged at the first sampling port and the second sampling port.

[0023] The oil tank is provided with a switchable oil drain port for discharging the lubricating oil in the tank.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] 1、The utility model discloses a device for simulating the vibration abnormal fault and temperature abnormal fault of the equipment by arranging at least one micro vibrator and at least one heating film on the motor, the plunger pump and the hydraulic motor respectively, and the vibration sensor and the temperature sensor are configured to monitor in real time, and the monitoring data is displayed on the upper computer, and the received monitoring data is compared with the preset monitoring threshold by the upper computer, so that the typical mechanical and electrical equipment fault of the ship is reproduced, the students can learn and distinguish the basic fault better, the perception is improved, and the safety and practicability are good because the whole oil circuit system is controlled by the electrical control design, and the opening and closing of the motor, the hydraulic motor, the heating film and the micro vibrator is controlled by the upper computer through the RS485 remote intelligent control circuit breaker.

[0026] 2、Lubricating oil running pipeline is equipped with first flowmeter and second flowmeter, plus vibration sensor, temperature sensor and noise sensor configuration, so that the operation of the oil circuit system can be monitored in real time, and the monitoring threshold of each sensor can be set through the upper computer, which can be used for students to verify the fault judgment result.

[0027] 3、The first sampling port, the second sampling port and the heating device on the oil tank are used, and the sampling of the lubricating oil at different sampling positions and different temperatures is carried out, so that the platform can also be used for teaching training of simulating lubricating oil quality judgment. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 It is a front view structural schematic diagram of the utility model;

[0030] Figure 3 It is a top view structural schematic diagram of the utility model;

[0031] Figure 4 It is a position distribution schematic diagram of the micro-vibrator and the heating film on the motor and the plunger pump;

[0032] Figure 5 It is an oil circuit schematic diagram of the utility model;

[0033] Figure 6 It is a control system block diagram of the utility model;

[0034] Figure 7 It is a structural schematic diagram of one part of the main control circuit of the utility model;

[0035] Figure 8 It is a structural schematic diagram of the remaining part of the main control circuit of the utility model;

[0036] Figure 9 It is a connection relationship schematic diagram between the upper computer and each sensor and RS485 remote intelligent control circuit breaker;

[0037] Figure 10 It is a wiring schematic diagram of each sensor and RS485 remote intelligent control circuit breaker.

[0038] In the figure, 1 oil tank; 11 resistance wire; 12 liquid level meter; 21 hydraulic motor; 211 arrangement position of micro vibrator and heating film on the hydraulic motor; 212 frequency converter; 22 magnetic powder brake; 23 tension controller; 3 lubricating oil running pipeline; 41 plunger pump; 411 arrangement position of heating film on the plunger pump; 412 arrangement position of micro vibrator on the plunger pump; 42 motor; 421 arrangement position of micro vibrator and heating film on the motor; 43 coupling 51 first flowmeter; 52 second flowmeter; 53 third flowmeter; 6 hydraulic control valve group; 71 first sampling port; 72 second sampling port; 8 filter; 9 platform. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0040] Please refer to Figures 1 to 10 The structure of the ship electromechanical equipment fault judgment training platform of the embodiment comprises:

[0041] The lubricating oil running pipeline 3, the oil tank 1 and the hydraulic motor 21 are arranged on the platform 9. The lubricating oil can circulate between the oil tank 1 and the hydraulic motor 21 through the lubricating oil running pipeline 3. The lubricating oil running pipeline 3 is sequentially provided with the plunger pump 41, the first flowmeter 51, the second flowmeter 52 and the hydraulic control valve group 6 along the oil outlet direction from the oil tank 1 to the hydraulic motor 21. The first sampling port 71 is arranged between the first flowmeter 51 and the second flowmeter 52. The hydraulic control valve group 6, the third flowmeter 53 are sequentially arranged along the oil return direction from the hydraulic motor 21 to the oil tank 1. The second sampling port 72 is arranged between the hydraulic control valve group 6 and the third flowmeter 53. The hydraulic control valve group 6 is used for controlling the flow direction of the lubricating oil to change the running direction of the hydraulic motor 21. The first flowmeter 51, the second flowmeter 52 and the third flowmeter 53 are used for real-time monitoring of the lubricating oil circulation. The oil quality in the oil circuit is grasped through sampling through the first sampling port 71 and the second sampling port 72. The plunger pump 41 is driven by the motor 42 and is connected with the motor 42 through the coupling 43. The plunger pump 41 is used for pumping the lubricating oil from the oil tank 1 to the motor. The hydraulic motor 21 is provided with the magnetic powder brake 22 for simulating the load. The load of the magnetic powder brake 22 is adjustable through the tension controller 23. The hydraulic motor 21 is further provided with the frequency converter 212. The rotating speed is adjustable through the frequency converter 212.

[0042] At least one micro-vibrator and at least one heating film are arranged on the motor 42, the plunger pump 41 and the hydraulic motor 21 respectively; the on-off of each micro-vibrator is independent of each other, the vibration intensity is adjustable, and the vibration abnormal failure of the motor 42, the plunger pump 41 and the hydraulic motor 21 is simulated through the micro-vibrator; the on-off of each heating film is independent of each other, the heating temperature is adjustable, and the temperature abnormal failure of the motor 42, the plunger pump 41 and the hydraulic motor 21 is simulated through the heating film; vibration sensors are arranged at the installation positions of the micro-vibrators on the motor 42, the plunger pump 41 and the hydraulic motor 21 respectively, temperature sensors are arranged at the installation positions of the heating films respectively, and noise sensors are arranged at the installation positions of the motor 42 and the hydraulic motor 21 respectively;

[0043] An alarm device is arranged for fault alarm.

[0044] An upper computer is arranged for real-time receiving and display of the monitored data of each sensor and flowmeter, the display mode can be numerical value, change waveform and the like, so as to intuitively understand the running condition of the platform 9, and the setting of the monitoring threshold value of each sensor and flowmeter, the on-off of the motor 42 and the hydraulic motor 21, the alarm device, each micro-vibrator and heating film is controlled by the upper computer, and the tension controller 23 and the frequency converter 212 are controlled by the upper computer.

[0045] In the specific implementation, the corresponding structure of the ship electromechanical equipment fault judgment training platform 9 also includes:

[0046] The speed regulation range of the hydraulic motor 21 is 0-1500 rpm.

[0047] The power supply circuit of each micro-vibrator is controlled by the on-off of the two-phase 220V RS485 remote intelligent control breaker, and the on-off of the matched RS485 remote intelligent control breaker is controlled by the upper computer;

[0048] The power supply circuit of each heating film is controlled by the on-off of the two-phase 220V RS485 remote intelligent control breaker, and the on-off of the matched RS485 remote intelligent control breaker is controlled by the upper computer;

[0049] The power supply circuit of the alarm device is controlled by the on-off of the two-phase 220V RS485 remote intelligent control breaker, and the on-off of the matched RS485 remote intelligent control breaker is controlled by the upper computer; the alarm device is an audible and visual alarm;

[0050] The power supply circuit of the motor 42 and the plunger pump 41 is controlled by the on-off of the three-phase 380V RS485 remote intelligent control breaker, and the on-off of the matched RS485 remote intelligent control breaker is controlled by the upper computer; the motor 42 is a three-phase asynchronous motor;

[0051] The power supply circuit of the hydraulic motor 21 is controlled by a two-phase 220V RS485 remote intelligent control circuit breaker, and the opening and closing of the matched RS485 remote intelligent control circuit breaker is controlled by the host computer.

[0052] The host computer controls the opening and closing of each RS485 remote intelligent control circuit breaker through 485 communication.

[0053] As an example, Figure 1 The arrangement position 211 of the micro-vibrator and the heating film on the hydraulic motor is shown in FIG. Figure 6 The arrangement position 411 of the heating film on the plunger pump, the arrangement position 412 of the micro-vibrator on the plunger pump, and the arrangement position 421 of the micro-vibrator and the heating film on the motor are shown in FIG.

[0054] The platform 9 adopts a combination of "virtual + actual" to realize the setting and judgment of typical fault phenomena of electromechanical equipment, which can help students to sensitively perceive the changes of the running state of electromechanical equipment, and is convenient for teachers to carry out teaching and training. When used for fault judgment teaching and training, the following methods can be referred to:

[0055] When running normally, each micro-vibrator, each heating film, and each RS485 remote intelligent control circuit breaker matched with the alarm device are kept open.

[0056] When simulating a local vibration abnormal fault, the RS485 remote intelligent control circuit breaker matched with the micro-vibrator at the corresponding position is turned on by the host computer to connect the power supply circuit of the micro-vibrator, so that the motor 42 or the plunger pump 41 or the hydraulic motor 21 vibrates violently locally, the lubricating oil continues to circulate, and the vibration sensor is used to monitor and feed back in real time to the host computer through a wired way. The host computer analyzes and compares the received real-time monitoring values with the preset monitoring threshold value, and when the monitoring threshold value is exceeded, the RS485 remote intelligent control circuit breaker matched with the alarm device is turned on to make the alarm device alarm for the vibration abnormal fault at the position.

[0057] When simulating a local temperature abnormal fault, the RS485 remote intelligent control circuit breaker matched with the heating film at the corresponding position is turned on by the host computer to connect the power supply circuit of the heating film, so that the motor 42 or the plunger pump 41 or the hydraulic motor 21 is heated locally. The temperature sensor is used to monitor and feed back in real time to the host computer through a wired way. The host computer analyzes and compares the received real-time monitoring values with the preset monitoring threshold value, and when the monitoring threshold value is exceeded, the RS485 remote intelligent control circuit breaker matched with the alarm device is turned on to make the alarm device alarm for the temperature abnormal fault at the position.

[0058] When the student finds the correct fault position, the RS485 remote intelligent control circuit breaker matched with the alarm device and the micro-vibrator or the heating film that has been turned on can be turned off simultaneously by the host computer, and the fault is eliminated, and the oil circuit returns to normal operation.

[0059] The above categories of faults can be combined arbitrarily.

[0060] Based on the embodiment, the skilled in the art can further develop to set the mechanical abnormal fault by the host computer software, and provide the corresponding software material library of the fault, including data, charts and videos, for judging the type and location of the existing fault, and alarming the fault by the alarm device, so as to simulate the mechanical abnormal fault of the motor 42, the plunger pump 41 and the hydraulic motor 21.

[0061] Further setting, when simulating the local vibration abnormal fault, the vibration intensity of each micro vibrator is manually adjustable in three levels of strong, medium and weak, and the micro vibrator of the embodiment is selected as the Fengli FL-15 / 2 with three levels of manually adjustable intensity.

[0062] Further setting, when simulating the local temperature abnormal fault, the heating temperature of each heating film is adjustable: the heating temperature value is preset in the host computer, the temperature value at the location is monitored in real time by the temperature sensor and fed back to the host computer through the wired mode, the host computer compares the received temperature value with the preset heating temperature value, and when the received temperature value reaches the preset heating temperature value, the heating film is controlled to be disconnected by the RS485 remote intelligent control circuit breaker, so as to realize the self-adjustment of the heating temperature.

[0063] Further setting, in order to ensure the safe operation of the platform 9 and prevent the temperature from being too high or the resonance phenomenon from endangering the safety of personnel, the host computer can be used to control the motor 42 to adjust the speed of the motor 42 through the RS485 frequency converter 212, and the power supply can be directly cut off in emergency.

[0064] The vibration sensor can be selected as a three-axis acceleration sensor.

[0065] The hydraulic control valve group 6 is ZT-L12-1W.

[0066] The oil tank 1 is provided with a heating device for heating the lubricating oil in the tank to change the viscosity of the lubricating oil, and the heating device is a resistance wire 11, the heating temperature of which is set by the host computer, and the power supply circuit of the resistance wire 11 is provided with an air switch which can be manually switched on and off.

[0067] Ball valves for opening and closing the sampling ports are respectively arranged at the first sampling port 71 and the second sampling port 72.

[0068] A five-star hydraulic motor 21 is adopted.

[0069] The oil tank 1 is provided with an oil drain port which can be opened and closed, for discharging the lubricating oil in the tank, and is also provided with an oil filling port for facilitating the replacement of the lubricating oil, and is also provided with a liquid level meter 12 for detecting the liquid level of the lubricating oil in the tank. The lubricating oil needs to be filtered by the filter 8 before entering the oil tank 1.

[0070] The platform 9 can also be used for teaching training of judging the quality of lubricating oil by sampling lubricating oil at different sampling positions and different temperatures through the first sampling port 71, the second sampling port 72 and the heating device.

[0071] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A ship electromechanical equipment fault judgment training platform, characterized in that: a lubricating oil running pipeline, an oil tank and a hydraulic motor are arranged on the platform, lubricating oil can circulate between the oil tank and the hydraulic motor through the lubricating oil running pipeline, the lubricating oil running pipeline is sequentially provided with a plunger pump, a first flowmeter, a second flowmeter and a hydraulic control valve group along an oil outlet direction from the oil tank to the hydraulic motor, a first sampling port is arranged between the first flowmeter and the second flowmeter, the hydraulic control valve group and a third flowmeter are sequentially arranged along an oil return direction from the hydraulic motor to the oil tank, a second sampling port is arranged between the hydraulic control valve group and the third flowmeter, the hydraulic control valve group is used for controlling the flow direction of the lubricating oil, the plunger pump is driven by a motor and is used for pumping the lubricating oil from the oil tank to the motor, the hydraulic motor is provided with a magnetic powder brake for simulating a load, the load size of the magnetic powder brake is adjustable through a tension controller, and the hydraulic motor is further provided with a frequency converter, and the rotating speed is adjustable through the frequency converter; at least one micro-vibrator and at least one heating film are arranged on the motor, the plunger pump and the hydraulic motor respectively, the on-off of each micro-vibrator is independent of each other, the vibration intensity is adjustable, the vibration abnormal fault of the motor, the plunger pump and the hydraulic motor is simulated through the micro-vibrator, the on-off of each heating film is independent of each other, the heating temperature is adjustable, and the temperature abnormal fault of the motor, the plunger pump and the hydraulic motor is simulated through the heating film, vibration sensors are arranged at the installation positions of the micro-vibrators on the motor, the plunger pump and the hydraulic motor respectively, temperature sensors are arranged at the installation positions of the heating films respectively, and noise sensors are arranged at the installation positions of the motor and the hydraulic motor respectively; an alarm device is arranged for fault alarm; an upper computer is arranged for real-time receiving and display of monitored data of each sensor and flowmeter, setting of monitoring thresholds of each sensor and flowmeter, and control of the on-off of the motor and the hydraulic motor, the alarm device, each micro-vibrator and heating film, and the tension controller and the frequency converter is controlled by the upper computer. The rotating speed regulation range of the hydraulic motor is 0-1500 rpm.

2. The marine electromechanical equipment fault judgment training platform according to claim 1, characterized in that:

3. The ship electromechanical equipment fault judgment training platform according to claim 1, characterized in that: the power supply circuit of each micro-vibrator is controlled by a two-phase 220V RS485 remote intelligent control circuit breaker, and the on-off of each RS485 remote intelligent control circuit breaker is controlled by the upper computer; the power supply circuit of each heating film is controlled by a two-phase 220V RS485 remote intelligent control circuit breaker, and the on-off of each RS485 remote intelligent control circuit breaker is controlled by the upper computer; the power supply circuit of the alarm device is controlled by a two-phase 220V RS485 remote intelligent control circuit breaker, and the on-off of the RS485 remote intelligent control circuit breaker is controlled by the upper computer; the power supply circuit of the motor and the plunger pump is controlled by a three-phase 380V RS485 remote intelligent control circuit breaker, and the on-off of the RS485 remote intelligent control circuit breaker is controlled by the upper computer; ​ The power supply circuit of the hydraulic motor is controlled on and off by a two-phase 220V RS485 remote intelligent control circuit breaker, and the opening and closing of the matched RS485 remote intelligent control circuit breaker is controlled by the host computer.

4. The marine electromechanical equipment fault judgment training platform according to claim 1 or 3, characterized in that: The alarm device is an audible and visual alarm.

5. The marine electromechanical equipment fault judgment training platform according to claim 1 or 3, characterized in that: The motor is a three-phase asynchronous motor.

6. The marine electromechanical equipment fault judgment training platform according to claim 1, characterized in that: The oil tank is provided with a heating device for heating the lubricating oil in the tank, the heating device is a resistance wire, the heating temperature is set by the host computer, and the matched heating circuit is provided with an air switch which can be manually switched on and off.

7. The marine electromechanical equipment fault judgment training platform according to claim 1, characterized in that: Ball valves for opening and closing the first sampling port and the second sampling port are arranged at the first sampling port and the second sampling port respectively.

8. The marine electromechanical equipment fault judgment training platform according to claim 1 or 5, characterized in that: The oil tank is provided with an oil drain port which can be opened and closed, and is used for discharging the lubricating oil in the tank.

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