Rim type propeller motor calibration test device and test method thereof

Abstract

The invention discloses a rim type propeller motor calibration test device and a test method thereof. The test device comprises a base, a test pool, a water circulation system and a data analysis system. The test pool and the data analysis system are respectively arranged on the base; the test pool is provided with an installation platform which is used for fixing the rim-type propeller. A connecting shaft is rotationally assembled on the side wall of the testing pool, one end of the connecting shaft is in transmission connection with a rotating shaft of the rim type propeller, and the other end of the connecting shaft is connected with the data analysis system. The rim-type propeller motor calibration testing device is provided with the water circulation system, the temperature detection module is arranged in the testing pool, the temperature detection module can detect the water temperature of the testing pool, the water temperature of the testing pool is kept stable, heat generated by the rim-type propeller motor in the working process is prevented from heating water in the testing pool, and the testing accuracy is improved. The water temperature is increased, the density and viscosity of water are influenced, the measurement result of the propeller is prevented from being influenced, and the measured parameters are more accurate.

Description

Technical Field

[0001] The invention relates to the field of propeller thrust experimental devices, and in particular to a rim-type propeller motor calibration test device and a test method thereof. Background Art

[0002] Tethered underwater robots (ROVs) are gradually being widely used in the maintenance of docks and dock pile foundations, bridges, underwater parts of dams, and waste removal. The propeller is the power source of the tethered underwater robot and determines the mobility of the tethered underwater robot. Therefore, in order to improve the reliability and working performance of the tethered underwater robot, it is very important to conduct research on the performance testing and analysis of the tethered underwater robot propeller.

[0003] Changes in water temperature will affect the density and viscosity of water, thereby changing the power and torque of the thruster. However, existing thruster performance testing equipment does not have temperature detection equipment and is unable to monitor the water temperature, resulting in the water temperature being different from the actual temperature, causing measurement errors. Summary of the invention

[0004] The purpose of the present invention is to propose a rim-type thruster motor calibration test device and a test method thereof, so as to solve the problem that the above-mentioned thruster thrust test device can only perform thrust test but cannot control water temperature, resulting in insufficient accuracy.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a rim-type thruster motor calibration test device, comprising a base, a test water pool, a water circulation system and a data analysis system;

[0007] The test water pool and the data analysis system are respectively arranged on the base;

[0008] The test pool is provided with a mounting platform, and the mounting platform is used to fix the rim-type propeller; the side wall of the test pool is rotatably equipped with a connecting shaft, one end of the connecting shaft is drivingly connected to the rotating shaft of the rim-type propeller, and the other end of the connecting shaft is connected to the data analysis system;

[0009] The data analysis system detects parameters of the rim-type propeller according to the rotation of the connecting shaft;

[0010] The water circulation system is provided with a cooling water pipe and a warm water pipe, and the cooling water pipe and the warm water pipe are respectively connected to the test water pool, the cooling water pipe is used to input cooling water into the test water pool, and the warm water pipe is used to recover the water in the test water pool; the test water pool is provided with a temperature detection module, and the temperature detection module is electrically connected to the water circulation system, and the temperature detection module is used to detect the water temperature of the test water pool, and control the water circulation system to input cooling water and recover the water in the test water pool to control the water temperature of the test water pool.

[0011] In the rim-type thruster motor calibration test device, the temperature detection module includes a plurality of water pool temperature collectors, the water pool temperature collectors are distributed in the test water pool, and the water pool temperature collectors are electrically connected to the water circulation system respectively.

[0012] In the rim-type thruster motor calibration test device, the water circulation system includes a water circulation pool, a water supply pump and a water pump; the water circulation pool is arranged on one side of the base, the water supply pump and the water pump are respectively arranged in the water circulation pool, the output end of the water supply pump is connected to the cooling water pipe, and the input end of the water pump is connected to the warm water pipe.

[0013] In the rim-type thruster motor calibration test device, the water circulation system also includes a cooling water circulation machine and a circulation pool water temperature collector. The cooling water circulation machine is arranged on one side of the water circulation pool and is used to cool the cooling water in the cooling water circulation pool; the circulating pool water temperature collector is arranged in the water circulation pool and is electrically connected to the cooling water circulation machine.

[0014] In the rim-type thruster motor calibration test device, the water circulation system also includes a liquid level detection device, which is electrically connected to a water supply pump and a water pump, respectively, and controls the water supply pump to input cooling water into the test water pool or controls the water pump to pump water from the test water pool to the water circulation pool.

[0015] In the rim-type thruster motor calibration test device, the test pool is also provided with an adjustment pad and a ring push fixing frame;

[0016] The adjustment pad is arranged at the bottom of the test pool, and the ring push fixing frame is detachably connected to the top of the test pool; the ring push fixing frame is located above the adjustment pad, and the adjustment pad and the ring push fixing frame cooperate to form an installation platform; the rim-type propeller is detachably connected to the ring push fixing frame.

[0017] In the rim-type thruster motor calibration test device, the data analysis system includes a data acquisition instrument, a dynamometer, a power analysis and data acquisition processing module and a host computer analyzer;

[0018] The data acquisition instrument is arranged at the other end of the connecting shaft, the data acquisition instrument is transmission-connected to the dynamometer, and the host computer analyzer is electrically connected to the dynamometer, power analysis and data acquisition processing module respectively.

[0019] The present invention also provides a rim-type thruster motor calibration test method, which uses the above-mentioned rim-type thruster motor calibration test device to perform a test, comprising the following steps:

[0020] S1. Fix the rim-type propeller to be tested on the mounting platform, and connect the rotating shaft of the rim-type propeller with the connecting shaft;

[0021] S2, connecting the power line and signal line of the rim-type thruster to be tested to the external control system respectively, and starting the data analysis system;

[0022] S3, start the water circulation system, make the water in the test pool submerge the rim-type propeller to be tested, and continuously replace the water in the test pool through the water circulation system to maintain the water temperature of the test pool;

[0023] S4. Start the rim-type thruster, detect the operating parameters of the rim-type thruster through the data analysis system, and obtain the measurement data of the rim-type thruster.

[0024] A technical solution in the present invention can have the following beneficial effects:

[0025] The rim-type thruster motor calibration test device is provided with a water circulation system, and a temperature detection module is provided in the test water pool. The temperature detection module can detect the water temperature of the test water pool to keep the water temperature of the test water pool stable, thereby preventing the heat generated by the rim-type thruster motor during operation from heating the water in the test water pool, causing the water temperature of the test water pool to rise, affecting the density and viscosity of the water, and controlling the water temperature variable, thereby preventing the change in water temperature from affecting the measurement results of the power and torque of the thruster and causing measurement errors, thereby making the measured parameters more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of one embodiment of the present invention;

[0027] Figure 2 is a position relationship diagram of a data analysis system in one embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of the structure of a test pool in one embodiment of the present invention;

[0029] Figure 4 is a cross-sectional view of a test pool in one embodiment of the present invention;

[0030] In the attached drawings: base 1, test pool 2, water circulation system 3, data analysis system 4, rim-type propeller 5;

[0031] Connecting shaft 21; water pool temperature collector 22; adjusting pad 23, ring push fixing frame 24; water circulation pool 31, water supply pump 32, water pump 33; cooling water circulation machine 34, circulation pool water temperature collector 35; liquid level detection device 36; data acquisition instrument 41, dynamometer 42, power analysis and data acquisition processing module 43, host computer analyzer 44;

[0032] Horizontal fixing strip 241 , vertical fixing strip 242 ; cooling water pipe 301 , warm water pipe 302 . DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0035] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Please refer to Figures 1 to 4, the present invention provides a rim-type thruster motor calibration test device, comprising a base 1, a test water pool 2, a water circulation system 3 and a data analysis system 4;

[0038] The test water pool 2 and the data analysis system 4 are respectively arranged on the base 1;

[0039] The test pool 2 is provided with a mounting platform, and the mounting platform is used to fix the rim-type propeller 5; the side wall of the test pool 2 is rotatably equipped with a connecting shaft 21, one end of the connecting shaft 21 is transmission-connected to the rotating shaft of the rim-type propeller 5, and the other end of the connecting shaft 21 is connected to the data analysis system 4;

[0040] The data analysis system 4 detects the parameters of the rim-type propeller according to the rotation of the connecting shaft 21;

[0041] The water circulation system 3 is provided with a cooling water pipe 301 and a warm water pipe 302, and the cooling water pipe 301 and the warm water pipe 302 are respectively connected to the test water pool 2, the cooling water pipe 301 is used to input cooling water to the test water pool 2, and the warm water pipe 302 is used to recover the water in the test water pool 2; the test water pool 2 is provided with a temperature detection module, and the temperature detection module is electrically connected to the water circulation system 3, and the temperature detection module is used to detect the water temperature of the test water pool 2, and control the water circulation system 3 to input cooling water and recover the water in the test water pool 2, so as to control the water temperature of the test water pool 2.

[0042] The rim-type propeller motor calibration test device is provided with a water circulation system 3, and a temperature detection module is provided in the test water pool 2. The temperature detection module can detect the water temperature of the test water pool 2. When the temperature of the test water pool 2 is too high, the water circulation system 3 is controlled to input cooling water and recycle the water in the test water pool 2, so that the water temperature of the test water pool 2 remains stable, and the heat generated by the rim-type propeller motor during operation is prevented from heating the water in the test water pool 2, causing the water temperature of the test water pool 2 to rise, affecting the density and viscosity of the water, and controlling the water temperature variable, thereby avoiding the change of water temperature from affecting the measurement results of the power and torque of the propeller, causing measurement errors, and making the measured parameters more accurate.

[0043] The base 1 is used to fix the test pool 2 and the data analysis system 4, so that the structure of the test pool 2 and the data analysis system 4 remains stable, and the offset between the test pool 2 and the data analysis system 4 is prevented, which causes the connecting shaft 21 to be unable to transmit well, and ensures that the transmission structure between the rotating shaft of the rim-type propeller 5, the connecting shaft 21 and the data analysis system 4 is stable during each measurement, thereby reducing the measurement error. In a specific embodiment of the present invention, the test pool 2 is fixed to the test pool 2 by anchor bolts. The test pool 2 is also provided with a drain for draining the water of the test pool 2.

[0044] The mounting platform is used to fix the rim-type propeller 5 to prevent the rim-type propeller 5 from shaking during the test and affecting the measurement results.

[0045] In a specific embodiment of the present invention, the water outlet of the cooling water pipe 301 is located at one side of the test water pool 2, and the warm water pipe 302 is located at the other side of the test water pool 2. With the above structure, the water in the test water pool 2 can be driven to flow in the test water pool 2, preventing the cooling water discharged from the cooling water pipe 301 from being directly recovered by the warm water pipe 302, thereby improving the cooling effect.

[0046] Preferably, the temperature detection module includes a plurality of water pool temperature collectors 22 , and the water pool temperature collectors 22 are distributed in the test water pool 2 , and the water pool temperature collectors 22 are electrically connected to the water circulation system 3 , respectively.

[0047] In a specific embodiment of the present invention, four water pool temperature collectors 22 are included, the first water pool temperature collector 22 is arranged at the proximal end of the upper end of the side wall of the test water pool 2 close to the connecting shaft 21; the second water pool temperature collector 22 is arranged at the proximal end of the lower end of the side wall of the test water pool 2 close to the connecting shaft 21; the third water pool temperature collector 22 is arranged at the proximal end of the upper end of the side wall of the test water pool 2 away from the connecting shaft 21; the fourth water pool temperature collector 22 is arranged at the proximal end of the lower end of the side wall of the test water pool 2 away from the connecting shaft 21.

[0048] Using multiple pool temperature collectors 22 distributed in different places of the test pool 2 can provide temperature data at different locations, thereby helping to accurately understand the temperature distribution in the test pool 2 to identify any local temperature anomalies or uneven heat distribution; moreover, real-time acquisition of temperature data at different locations helps to timely control the start-up of the water circulation system 3 to maintain the stability of the temperature in the test pool 2. In addition, through cross-validation of multiple pool temperature collectors 22, data reliability can also be improved, reducing the impact of single sensor failure or data error.

[0049] Furthermore, the water circulation system 3 includes a water circulation pool 31, a water supply pump 32 and a water pump 33; the water circulation pool 31 is arranged on one side of the base 1, and the water supply pump 32 and the water pump 33 are respectively arranged in the water circulation pool 31, the output end of the water supply pump 32 is connected to the cooling water pipe 301, and the input end of the water pump 33 is connected to the warm water pipe 302.

[0050] The water circulation pool 31 is used to contain cooling water, and the output end of the water supply pump 32 is connected to the cooling water pipe 301, and is used to deliver the cooling water to the test water pool 2 through the cooling water pipe 301; the input end of the water pump 33 is connected to the warm water pipe 302, and is used to recycle the water of the test water pool 2 through the warm water pipe 302 to the water circulation pool 31 for cooling, thereby maintaining the water temperature of the test water pool 2 stable. The water supply pump 32 and the water pump 33 are started synchronously, and the cooling water output of the water supply pump 32 and the water recovery amount of the test water pool 2 of the water pump 33 are the same, so as to avoid the water level of the test water pool 2 from changing during the test process, so as to achieve the purpose of controlling variables.

[0051] Furthermore, the water circulation system 3 also includes a cooling water circulation machine 34 and a circulation pool water temperature collector 35. The cooling water circulation machine 34 is arranged on one side of the water circulation pool 31 and is used to cool the cooling water in the cooling water circulation pool 31; the circulation pool water temperature collector 35 is arranged in the water circulation pool 31 and is electrically connected to the cooling water circulation machine 34.

[0052] The circulating pool water temperature collector 35 is used to detect the cooling water temperature of the water circulating pool 31, so as to accurately understand the temperature in the water circulating pool 31, and avoid the problem that the water temperature of the water circulating pool 31 rises and the water temperature of the test pool 2 cannot be adjusted. The cooling water circulation machine 34 can refer to the existing water chiller, and the compressor of the cooling water circulation machine 34 is used for cooling, and then heat exchange with water is performed to reduce the temperature of the water, and the water is sent out through the circulation pump to keep the cooling water at a stable water temperature. The cooling water circulation machine 34 is provided with a control panel, and the water temperature of the cooling water is adjusted as needed, and then the cooling water is delivered to the test pool 2 through the water delivery pump 32, which can indirectly adjust the water temperature of the test pool 2.

[0053] Specifically, the water circulation system 3 also includes a liquid level detection device 36, which is electrically connected to the water supply pump 32 and the water pump 33 respectively, and controls the water supply pump 32 to input cooling water into the test water pool 2 or controls the water pump 33 to pump water from the test water pool 2 to the water circulation pool 31.

[0054] The liquid level detection device 36 is used to detect the water level of the test pool 2 to prevent changes in the test pool 2, which may lead to an increase in irrelevant variables and measurement errors. When the water level is too high, the liquid level detection device 36 can increase the output power of the water pump 33 through the control system to pump away excess water. When the water level is too low, the liquid level detection device 36 can increase the output power of the water pump 32 through the control system to discharge more cooling water to the test pool 2.

[0055] Specifically, the test pool 2 is also provided with an adjustment pad 23 and a ring push fixing frame 24;

[0056] The adjustment pad 23 is arranged at the bottom of the test pool 2, and the ring push fixing frame 24 is detachably connected to the top of the test pool 2; the ring push fixing frame 24 is located above the adjustment pad 23, and the adjustment pad 23 and the ring push fixing frame 24 cooperate to form an installation platform; the rim-type propeller 5 is detachably connected to the ring push fixing frame 24.

[0057] By adopting the above structure, the rim-type propeller 5 is fixed by adjusting the pad 23 and the ring push fixing frame 24, so as to avoid the rim-type propeller 5 from shaking during the test process, thereby affecting the measurement result.

[0058] In a specific embodiment of the present invention, the ring-push fixing frame 24 includes a plurality of transverse fixing bars 241 and a plurality of longitudinal fixing bars 242. The transverse fixing bars 241 and the longitudinal fixing bars 242 are spliced ​​with each other to form a fixing frame structure, and the top of the rim-type propeller 5 is fixed by the ring-push fixing frame 24.

[0059] The rim-type propeller 5 is placed on the adjustment pad 23, and the height of the rim-type propeller 5 is adjusted by adjusting the pad 23 so that the axis of the rotating shaft of the rim-type propeller 5 and the axis of the connecting shaft 21 are on the same horizontal line, so as to facilitate connecting the rotating shaft of the rim-type propeller 5 with the connecting shaft 21.

[0060] Specifically, the data analysis system 4 includes a data acquisition device 41, a dynamometer 42, a power analysis and data acquisition processing module 43 and a host computer analyzer 44;

[0061] The data acquisition instrument 41 is disposed at the other end of the connecting shaft 21 , and is transmission-connected to the dynamometer 42 . The host computer analyzer 44 is electrically connected to the dynamometer 42 and the power analysis and data acquisition processing module 43 .

[0062] The power analysis and data acquisition processing module 43 includes a power analyzer and a data acquisition industrial computer. The power analyzer is used to test and verify the power performance of the rim-type propeller 5, including power loss and efficiency, etc. The data acquisition industrial computer is used to collect, process and store data from the pool temperature collector 22, the data collector 41 and the dynamometer 42. The data collector 41 is used to detect the rotation speed of the rim-type propeller 5, and the dynamometer 42 is used to measure the power output of the rim-type propeller 5. The host computer analyzer 44 is combined with the data collector 41, the pool temperature collector 22 and the data acquisition industrial computer to provide advanced data processing.

[0063] The present invention also provides a rim-type thruster motor calibration test method, which uses the above-mentioned rim-type thruster motor calibration test device to perform a test, comprising the following steps:

[0064] S1, fixing the rim-type propeller to be tested on the mounting platform, and connecting the rotating shaft of the rim-type propeller to the connecting shaft 21;

[0065] S2, connecting the power line and signal line of the rim-type thruster to be tested to the external control system respectively, and starting the data analysis system 4;

[0066] S3, start the water circulation system 3, so that the water in the test pool 2 covers the rim-type propeller to be tested, and continuously replace the water in the test pool 2 through the water circulation system 3 to maintain the water temperature of the test pool 2;

[0067] S4, starting the rim-type propeller, detecting the operating parameters of the rim-type propeller through the data analysis system 4, and obtaining the measurement data of the rim-type propeller.

[0068] The rim-type propeller motor calibration test method adopts the above-mentioned rim-type propeller motor calibration test device for testing, so that the water temperature of the test pool 2 remains stable, and the heat generated by the rim-type propeller motor during operation is prevented from heating the water in the test pool 2, causing the water temperature of the test pool 2 to rise, affecting the density and viscosity of the water, and controlling the water temperature variable, thereby avoiding the change of water temperature from affecting the measurement results of the power and torque of the propeller, causing measurement errors, and making the measured parameters more accurate.

[0069] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific embodiments of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A rim-type thruster motor calibration test device, characterized in that: Including base, test pool, water circulation system and data analysis system; The test water pool and the data analysis system are respectively arranged on the base; The test pool is provided with a mounting platform, and the mounting platform is used to fix the rim-type propeller; the side wall of the test pool is rotatably equipped with a connecting shaft, one end of the connecting shaft is drivingly connected to the rotating shaft of the rim-type propeller, and the other end of the connecting shaft is connected to the data analysis system; The data analysis system detects parameters of the rim-type propeller according to the rotation of the connecting shaft; The water circulation system is provided with a cooling water pipe and a warm water pipe, and the cooling water pipe and the warm water pipe are respectively connected to the test water pool, the cooling water pipe is used to input cooling water into the test water pool, and the warm water pipe is used to recover the water in the test water pool; the test water pool is provided with a temperature detection module, and the temperature detection module is electrically connected to the water circulation system, and the temperature detection module is used to detect the water temperature of the test water pool, and control the water circulation system to input cooling water and recover the water in the test water pool to control the water temperature of the test water pool.

2. A rim-type thruster motor calibration test device according to claim 1, characterized in that: The temperature detection module includes a plurality of water pool temperature collectors, which are distributed in the test water pool and are electrically connected to the water circulation system respectively.

3. A rim-type thruster motor calibration test device according to claim 1, characterized in that: The water circulation system includes a water circulation pool, a water supply pump and a water pump; the water circulation pool is arranged on one side of the base, the water supply pump and the water pump are respectively arranged in the water circulation pool, the output end of the water supply pump is connected to the cooling water pipe, and the input end of the water pump is connected to the warm water pipe.

4. A rim-type thruster motor calibration test device according to claim 3, characterized in that: The water circulation system also includes a cooling water circulation machine and a circulation pool water temperature collector. The cooling water circulation machine is arranged on one side of the water circulation pool and is used to cool the cooling water in the water circulation pool; the circulation pool water temperature collector is arranged in the water circulation pool and is electrically connected to the cooling water circulation machine.

5. A rim-type thruster motor calibration test device according to claim 3, characterized in that: The water circulation system also includes a liquid level detection device, which is electrically connected to the water supply pump and the water pump respectively, and controls the water supply pump to input cooling water into the test water pool or controls the water pump to pump water from the test water pool to the water circulation pool.

6. A rim-type thruster motor calibration test device according to claim 1, characterized in that: The test water pool is also provided with an adjustment pad and a ring push fixing frame; The adjustment pad is arranged at the bottom of the test pool, and the ring push fixing frame is detachably connected to the top of the test pool; the ring push fixing frame is located above the adjustment pad, and the adjustment pad and the ring push fixing frame cooperate to form an installation platform; the rim-type propeller is detachably connected to the ring push fixing frame.

7. A rim-type thruster motor calibration test device according to claim 1, characterized in that: The data analysis system includes a data acquisition instrument, a dynamometer, a power analysis and data acquisition processing module and a host computer analyzer; The data acquisition instrument is arranged at the other end of the connecting shaft, the data acquisition instrument is transmission-connected to the dynamometer, and the host computer analyzer is electrically connected to the dynamometer, power analysis and data acquisition processing module respectively.

8. A rim-type thruster motor calibration test method, characterized in that: The test is performed using the rim-type thruster motor calibration test device according to any one of claims 1 to 7, comprising the following steps: S1. Fix the rim-type propeller to be tested on the mounting platform, and connect the rotating shaft of the rim-type propeller with the connecting shaft; S2, connecting the power line and signal line of the rim-type thruster to be tested to the external control system respectively, and starting the data analysis system; S3, start the water circulation system, make the water in the test pool submerge the rim-type propeller to be tested, and continuously replace the water in the test pool through the water circulation system to maintain the water temperature of the test pool; S4. Start the rim-type thruster, detect the operating parameters of the rim-type thruster through the data analysis system, and obtain the measurement data of the rim-type thruster.

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