CN210513696U - Remote sensing type strain measurement system for marine propeller shaft and measurement device thereof - Google Patents
Remote sensing type strain measurement system for marine propeller shaft and measurement device thereof Download PDFInfo
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- CN210513696U CN210513696U CN201921501988.4U CN201921501988U CN210513696U CN 210513696 U CN210513696 U CN 210513696U CN 201921501988 U CN201921501988 U CN 201921501988U CN 210513696 U CN210513696 U CN 210513696U
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Abstract
The utility model discloses a marine propulsion shaft remote sensing formula strain measurement system and measuring device thereof, marine propulsion shaft remote sensing formula strain measurement system, include: the rotor acquisition system is used for detecting a micro-strain signal and a rotating speed/steering signal of the transmission shaft and wirelessly transmitting the signals to the stator analysis system by using zigbee; a stator analysis system for receiving the micro strain signal and the rotating speed/steering signal, and analyzing, storing and displaying the signals; and a wireless induction power supply system which adopts OC type coil winding wireless power supply and power supply excitation to provide power supply for the stress sheet torque measuring bridge and the rotating speed/steering sensor. The utility model provides a propulsion shaft remote sensing formula strain measurement system has carried out the wireless response power supply design of brand-new general type OC type to the transmission shaft of metal and nonmetal different materials, different diameters to satisfy the transmission shaft measurement demand of various materials and size, be used for monitoring transmission shaft real-time torque, power, rotational speed and the turning to when rotatory operating condition.
Description
Technical Field
The utility model relates to a marine surveying and control technical field especially relates to a marine propulsion shaft moment of torsion/power/rotational speed/turn to remote sensing formula strain measurement system and measuring device thereof.
Background
Torque and shaft power are one of the important parameters representing the performance of the whole power system, and with the arrival of the industrial revolution 4.0, the real-time reading of the torque and shaft power parameters on the output shaft in the power system becomes more and more important. Particularly in the field of ships, the degree of ship intelligence is higher and higher, and the larger the ship is, the transmission type torque meter in the current market cannot meet the measurement of large shafting torque and shaft power such as ships. And the traditional industrial torquemeter can not measure and calculate the shaft power, and the installation must destroy the original shaft system, which can not meet the marine requirements.
For example, the published patent CN109341915A discloses an on-line monitoring and analyzing system for shaft power of a tug in harbor, and the disclosed wireless induction adopts a form of horseshoe U-shaped permanent magnet and coil, which has a drawback that an ac magnetic field generated at the transmitter end of wireless energy transmission can simultaneously generate a very large induced eddy current inside the U-shaped magnet and on the surface of the rotor rotating shaft, and the induced eddy current directly converts the energy of the ac magnetic field into heat energy, so that the efficiency of wireless energy transmission is greatly reduced, and even the energy can not be transmitted, therefore, the form can only be applied to non-metal transmission shaft systems, and cannot be used on metal shaft systems, and naturally, can not be used on ships. The novel wireless induction power supply design is carried out on different materials of metal and nonmetal, and the transmission shaft made of various materials can be met. In addition, the patent is not provided with a rotating speed acquisition unit, the shaft power is obtained by multiplying the torque by the rotating speed by 2 pi and then dividing by 60 according to the principle of shaft power measurement, and the shaft power cannot be calculated theoretically without acquisition of dynamic rotating speed signals.
For another example, published patent CN20420279U discloses a marine shaft power measuring system, in which a relatively long distance is required between two encoders to ensure the accuracy of the measurement, and the environment in most measurement sites cannot meet the installation conditions; the patent calculates power by measuring acceleration integral rotational inertia, and a coder is also used for calibration, and the accumulation of each instantaneous value can generate larger error deviation after long-term monitoring; the encoding disk used in the patent is in a digital measurement form, the precision is limited to the resolution of the encoding disk, signals cannot be amplified, and the strain gauge used by people is measured by an analog circuit, and the signals can be amplified infinitely; and the coding disc used in the patent adopts photoelectric signals, cannot be used when the coding disc is polluted a little, and has certain restriction on the harsh field environment of the ship.
The shaft power is one of the most important performance parameters of the marine diesel engine and the power plant thereof, and is generally obtained by indirectly measuring the output torque and the rotating speed of a shafting. At present, the shaft power measurement of the marine shafting in China mainly adopts a steel string type torque instrument, which utilizes the tightening or loosening of steel strings in a sensor when a shaft is twisted, and measures the torque through the self frequency change of the steel strings. The torque meter has the advantages of large volume, complex sensor installation and high requirement on test environment. Belongs to a contact type torque measurement method.
The strain type torque meter measures main strain generated by a shaft under the action of torque through a strain type sensor. The sensor comprises a strain gauge, a ferromagnetic material and the like. According to different strain signal transmission modes, the strain measurement method is divided into a contact type strain measurement method and a remote measurement type strain measurement method. At present, torque and shaft power measuring equipment used on ships and warships are all portable and used for measurement, can be really installed on a ship shaft system for long-term use, and most shaft power monitoring equipment still stays in a theoretical stage without a product falling to the ground, which is a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an above-mentioned problem among the solution prior art, the marine propulsion shaft moment of torsion/power/rotational speed/turn to remote sensing formula strain measurement system and measuring device who proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a first aspect provides a marine propulsion shaft remote sensing formula strain measurement system for the measurement of metal and/or non-metallic transmission shaft, include:
the rotor acquisition system comprises a stress sheet torque measuring bridge and a rotating speed/steering sensor which are arranged on a transmission shaft to be detected, and is used for detecting a micro-strain signal and a rotating speed/steering signal of the transmission shaft and wirelessly transmitting the detected micro-strain signal and the detected rotating speed/steering signal to the stator analysis system;
the stator analysis system is used for receiving the micro-strain signal and the rotating speed/steering signal transmitted by the rotor module, and analyzing, processing, storing and displaying the micro-strain signal and the rotating speed/steering signal to obtain torque, power, rotating speed and steering information of the transmission shaft; and
and the wireless induction power supply system adopts an OC type coil winding wireless power supply and power supply excitation mode, is respectively connected with the rotor acquisition system and the stator analysis system, and is used for providing power supply for the stress sheet torque measurement bridge and the rotating speed/steering sensor.
Further, the rotor collecting system further comprises:
the wireless energy transmission module is connected with a rotor excitation C-shaped coil of the wireless induction power supply system and used for providing a power supply for the rotor acquisition system;
the strain gauge excitation/data acquisition module is connected with the strain gauge torque measurement bridge and is used for acquiring a micro-strain signal of the transmission shaft; and
and the rotor micro-processing unit is connected with the strain gauge excitation/data acquisition module and the rotating speed/steering sensor and is used for receiving the micro-strain signal and the rotating speed/steering signal.
Further preferably, the stator analysis system includes:
the main control unit is connected with the rotor micro-processing unit through a wireless communication module and is used for receiving the micro-strain signal and the rotating speed/steering signal and analyzing and processing the received micro-strain signal and the rotating speed/steering signal;
the local display unit is connected with the main control unit and is used for displaying the torque, power, rotating speed and steering information of the transmission shaft in real time; and
and the storage unit is connected with the main control unit and is used for storing the torque, power, rotating speed and steering information of the transmission shaft in real time.
Further more preferably, the wireless communication module comprises a wireless data transmitting module connected with the rotor microprocessing unit and a wireless data receiving module connected with the main control unit.
Further, the marine propeller shaft remote sensing type strain measurement system further comprises: and the remote monitoring system is connected with the main control unit through the RS485 switching module and is used for remotely monitoring the torque, the power, the rotating speed and the steering information of the transmission shaft in real time.
Further, the wireless energy transmission module is externally connected with 24VDC through the stator analysis system.
Further, the wireless energy transmission module includes:
a sine signal generating and amplifying circuit for generating high frequency sine signal and amplifying the sine signal to drive the transmitting coil;
the O-shaped wireless energy transmitting end is a circularly wound spiral line, is connected to the sinusoidal signal generation amplifying circuit and is used for transmitting wireless energy;
the C-shaped wireless energy receiving end is a rectangular wound spiral line, integrally bends the spiral line into a C shape, is attached to the rotor, is connected in a rotor circuit and is used for receiving wireless energy;
and the rectification voltage stabilizing circuit consists of a diode rectification circuit, a voltage stabilizing chip and an energy storage capacitor and is used for receiving, rectifying, filtering, stabilizing and storing wireless energy.
A second aspect of the utility model is to provide a marine propulsion shaft remote sensing formula strain measurement device based on system, it includes rotor collection system and the stator device who constitutes by wireless induction power supply unit, stator analytical equipment, wireless induction power supply unit and stator analytical equipment are located the support frame top, wherein:
the rotor acquisition device is arranged on the transmission shaft and comprises a rotor sleeve ring, a torque measurement strain gauge, a rotor circuit board and a rotating speed/steering sensor, wherein the rotor circuit board and the rotating speed/steering sensor are arranged on the rotor sleeve ring;
the wireless induction power supply device comprises a stator box, a stator excitation O-shaped coil arranged in the stator box and a rotor excitation C-shaped coil arranged on a rotor lantern ring, wherein the stator excitation O-shaped coil and the rotor excitation C-shaped coil are wirelessly powered in an O-shaped and C-shaped coil winding combination mode respectively and are used for providing power for the torque measurement strain gauge, the rotor circuit board and the rotating speed/steering sensor; and
the stator analysis device comprises a control box, a stator circuit board arranged on the control box, and a power supply voltage stabilization module and a local display screen which are respectively connected with the stator circuit board, and is used for receiving the micro-strain signals and the rotating speed/steering signals acquired by the acquisition device, analyzing, processing, storing and displaying the micro-strain signals and the rotating speed/steering signals so as to obtain the torque, power, rotating speed and steering information of the transmission shaft.
Further, the rotor lantern ring includes the solid fixed ring of first semi-ring shape and the solid fixed ring of second semi-ring shape of two symmetrical arrangement, just the solid fixed ring of first semi-ring shape and the solid fixed ring of second semi-ring shape can dismantle the cover through the bolt and locate on the transmission shaft.
Further, a rotor excitation C-shaped coil is arranged on the surface of the rotor lantern ring and is arranged corresponding to the stator excitation O-shaped coil.
The above technical scheme is adopted in the utility model, compared with the prior art, following technological effect has:
(1) the novel universal OC type wireless induction power supply design is carried out on transmission shafts made of different materials and different diameters of metal and nonmetal, so that the measurement requirements of the transmission shafts made of various materials can be met;
(2) the rotating direction of the transmission shaft can be judged in real time by monitoring the rotating direction of the transmission shaft through the rotating speed/steering sensor, but the function is not available in the prior art;
(3) the local display screen is arranged on the stator device, so that the problems that the torque, power, rotating speed and steering cannot be directly observed and read on a measurement site are effectively solved;
(4) the utility model adopts the strain technology, the remote measuring type torque and shaft power measuring device has the advantages of small volume, convenient installation, less influence of environmental noise on signals in the transmission process, and the like;
(5) the temperature can be automatically compensated according to the setting of the strain gauge, the influence of temperature change on the measurement value of the strain gauge is effectively avoided, and the strain gauge is suitable for measurement under complex working conditions.
Drawings
Fig. 1 is a schematic view of the overall structure of a remote sensing type strain measurement system for a marine propeller shaft according to the present invention;
fig. 2 is a schematic structural diagram of a rotor acquisition system in a remote sensing type strain measurement system of a marine propeller shaft of the present invention;
FIG. 3 is a schematic structural diagram of a stator analysis system in a remote sensing type strain measurement system for a marine propeller shaft according to the present invention;
fig. 4 is a schematic structural diagram of a remote monitoring system in a remote sensing type strain measurement system for a marine propeller shaft of the present invention;
fig. 5 is a schematic perspective view of a remote sensing strain measuring device for a marine propeller shaft according to the present invention;
fig. 6 is a schematic side view of the remote sensing type strain measuring device for the marine propeller shaft of the present invention;
fig. 7 is a schematic view of an assembly structure of the remote sensing type strain measuring device for the marine propeller shaft and the transmission shaft of the present invention;
fig. 8 is a schematic view of an explosion structure of the marine propulsion shaft remote sensing type strain measuring device of the present invention;
fig. 9 is a schematic flow chart of a remote sensing type strain measurement method for a marine propeller shaft according to the present invention;
wherein the reference symbols are:
100-rotor collecting device, 110-rotor lantern ring, 111-first semi-annular fixing ring 111, 112-first semi-annular cover plate, 113-second semi-annular fixing ring, 114-second semi-annular cover plate, 115-rotor circuit board cover plate, 120-torque measuring strain gauge, 130-rotor circuit board, 140-rotating speed/steering sensor; 200-wireless induction power supply device, 210-stator box, 211-box bracket, 212-heat sink, 213-box body, 214-box sealing gasket, 215-box bottom plate; 220-stator excitation O-type coil, 230-rotor excitation C-type coil; 300-stator analysis device, 301-control box, 302-stator circuit board, 303-power supply voltage stabilizing module, 304-local display screen, 305-wiring terminal row, 306-fuse, 307-waterproof gasket, 308-box cover plate; 400-support frame, 401-base 402-support frame, 403-connecting plate; 500-drive shaft.
Detailed Description
The utility model provides a marine propulsion shaft remote sensing formula strain measurement system and measuring device, the transmission shaft to the different diameters of metal and nonmetal different materials has carried out the wireless response power supply design of brand-new general type OC type to satisfy the transmission shaft measurement demand of various materials and size, mainly used monitors the transmission shaft real-time torque, power, the rotational speed of equipment when rotatory operating condition with turning to, and can give the external equipment of other needs to relevant information data transmission.
The present invention will be described in detail and specifically with reference to specific embodiments so as to provide a better understanding of the present invention, but the following embodiments do not limit the scope of the present invention.
Example 1
Referring to fig. 1, a remote sensing strain measurement system for a marine propeller shaft is provided, which is used for measuring a metal and/or non-metal transmission shaft, and comprises: the rotor acquisition system comprises a stress sheet torque measuring bridge and a rotating speed/steering sensor which are arranged on a transmission shaft to be measured, a 24-Bit ultrahigh-precision AD data converter ADS1255, a high-precision voltage reference chip and an instrument signal amplifier module INA128, and is used for detecting a micro-strain signal and a rotating speed/steering signal of the transmission shaft and sending the detected micro-strain signal and the rotating speed/steering signal to a stator analysis system through a wireless data sending module (Zigbee wireless module); a stator analysis system, which is used for receiving the micro-strain signal and the rotating speed/steering signal transmitted by the rotor module, and analyzing, processing, storing and displaying the signals by using a main control unit to obtain the torque, power, rotating speed and steering information of the transmission shaft, wherein the main control unit adopts an STM32 microprocessor based on an Arm core; the wireless induction power supply system adopts an OC type coil winding wireless power supply and power supply excitation mode and comprises a sinusoidal signal generating and amplifying circuit, an O type wireless energy transmitting end, a C type wireless energy receiving end and a rectifying and voltage stabilizing circuit; the sine signal generating and amplifying circuit is used for generating a high-frequency sine signal and amplifying the sine signal so as to drive the transmitting coil; the O-shaped wireless energy transmitting end is a circularly wound spiral line, is connected to the sinusoidal signal generation amplifying circuit and is used for transmitting wireless energy; the C-shaped wireless energy receiving end is a rectangular wound spiral line, integrally bends the spiral line into a C shape, is attached to the rotor, is connected in a rotor circuit and is used for receiving wireless energy; and the rectification voltage stabilizing circuit is used for receiving, rectifying, filtering, stabilizing and storing wireless energy, is respectively connected with the rotor acquisition system and the stator analysis system, and is used for providing power for the stress sheet torque measuring bridge and the rotating speed/steering sensor.
The remote sensing type strain measurement system for the marine propeller shaft of the embodiment carries out brand-new OC type wireless induction power supply design aiming at transmission shafts made of different materials of metal and nonmetal and with different diameters, and can meet the measurement requirements of the transmission shafts made of various materials and diameters; the rotating direction of the transmission shaft can be judged in real time by monitoring the rotating direction of the transmission shaft through the rotating speed/steering sensor, and the function is not available in the prior art.
Referring to fig. 2, in the present embodiment, the rotor collecting system further includes: the wireless energy transmission module is connected with a rotor excitation C-shaped coil of the wireless induction power supply system and used for providing a power supply for the rotor acquisition system; the strain gauge excitation/data acquisition module is connected with the strain gauge torque measurement bridge and is used for acquiring a micro-strain signal of the transmission shaft; and the rotor micro-processing unit is connected with the strain gauge excitation/data acquisition module and the rotating speed/steering sensor and is used for receiving the micro-strain signal and the rotating speed/steering signal.
Referring to fig. 3, in the present embodiment, the stator analysis system includes: the main control unit is connected with the rotor micro-processing unit through a wireless communication module and used for receiving the micro-strain signal and the rotating speed/steering signal and analyzing and processing the micro-strain signal and the rotating speed/steering signal through an Arm-based STM32 microprocessor; the local display unit is connected with the main control unit and is used for displaying the torque, power, rotating speed and steering information of the transmission shaft in real time; and the storage unit is connected with the main control unit and is used for storing the torque, power, rotating speed and steering information of the transmission shaft in real time. In addition, according to the arrangement of the strain gauge of the stress gauge torque measurement bridge, the temperature can be automatically compensated through the main control unit, the influence of temperature change on the measurement value of the strain gauge is effectively avoided, and the method is suitable for measurement under complex working conditions.
As shown in fig. 3, in the present embodiment, the DA data conversion modules are connected to the main control unit, and are configured to convert the microstrain information and the rotational speed/steering information analyzed and processed by the main control unit into a rotational speed and a power through the signal amplifier, and display the rotational speed and the power on the local display screen in real time. In addition, the main control unit can be connected with an expansion interface through an RS485 switching module.
Referring to fig. 1 to 3, in the present embodiment, the Zigbee wireless communication module includes a wireless data transmitting module connected to the rotor microprocessor unit and a wireless data receiving module connected to the main control unit. The wireless data sending module is arranged on a rotor circuit of the rotor device, and the wireless data receiving module is arranged on a stator circuit board of the stator analysis device.
Referring to fig. 4, in this embodiment, the remote sensing type strain measurement system for a marine propulsion shaft further includes: and the remote monitoring system is connected with the main control unit through the RS485 switching module and is used for remotely monitoring the torque, power, rotating speed and steering information of the transmission shaft in real time to realize remote monitoring.
In addition, as shown in fig. 1, in the present embodiment, the wireless energy transmission module is externally connected to 24VDC through the stator analysis system.
Example 2
Referring to fig. 5 to 7, the present embodiment provides a remote sensing type strain measurement device for a marine propulsion shaft based on the system, which includes a rotor acquisition device 100 and a stator device composed of a wireless induction power supply device 200 and a stator analysis device 300, where the wireless induction power supply device 200 and the stator analysis device 300 are located on the top of a supporting frame 400, and wherein: the wireless induction power supply device 200 adopts a mode of wireless power supply and power supply excitation by winding an OC-type coil to provide power for the torque measurement strain gauge 120, the rotor circuit board 130 and the rotating speed/steering sensor 140; acquiring and detecting a micro-strain signal and a rotating speed/steering signal of the transmission shaft 500 in real time through the rotor acquisition device 100, and wirelessly transmitting the detected micro-strain signal and the detected rotating speed/steering signal to the stator analysis device 300; and analyzing, processing, storing and displaying the micro-strain signal and the rotational speed/steering signal acquired by the acquisition device 100 through a stator analysis device 300, thereby obtaining torque, power, rotational speed and steering information of the transmission shaft 500. The marine propulsion shaft remote sensing type strain measuring device has the advantages of small size, convenience in installation, small influence of environmental noise on signals in the transmission process and the like.
Referring to fig. 7 and 8, as a preferred embodiment, the rotor collecting device 100 is disposed on a transmission shaft 500, and includes a rotor collar 110, a torque measuring strain gauge 120, a rotor circuit board 130 disposed on the rotor collar 110, and a rotation speed/steering sensor 140, where the rotor circuit board 130 is connected to the torque measuring strain gauge 120 and the rotation speed/steering sensor 140, respectively, and is configured to detect a micro-strain signal and a rotation speed/steering signal of the transmission shaft 500, and send the detected micro-strain signal and the detected rotation speed/steering signal to a stator analyzing device 300 through a Zigbee wireless communication module.
Referring to fig. 8, in the present embodiment, the rotor collar 110 includes a first semi-annular fixing ring 111 and a second semi-annular fixing ring 113 that are symmetrically disposed, the first semi-annular fixing ring 111 and the second semi-annular fixing ring 113 are respectively in a semi-annular structure, and the first semi-annular fixing ring 111 and the second semi-annular fixing ring 113 are assembled to form a complete annular rotor collar 110 that can be sleeved on the transmission shaft 500. And the fixed ring 111 of first semicircle form and the fixed ring 113 of second semicircle form can be dismantled the cover through the bolt and locate on the transmission shaft 500, easy operation, installation easy maintenance.
In addition, as shown in fig. 8, in the present embodiment, the first semi-ring-shaped retaining ring 111 and the second semi-ring-shaped retaining ring 113 are respectively provided with a first semi-ring-shaped cover plate 112 and a second semi-ring-shaped cover plate 114. As shown in fig. 5 and 8, the rotor circuit board 130 and the rotation speed/direction sensor 140 are disposed in the second half ring-shaped fixing ring 113, and a rotor circuit board cover plate 115 is detachably disposed on an inner wall of the second half ring-shaped fixing ring 113 at a position corresponding to the rotor circuit board 130, and preferably, the rotor circuit board cover plate 115 is fixed to the second half ring-shaped fixing ring 113 in a bolt coupling manner.
Referring to fig. 7 and 8, as a preferred embodiment, the wireless induction power supply device 200 includes a stator case 210, a stator excitation O-coil 220 disposed in the stator case 210, and a rotor excitation C-coil 230 disposed on the rotor collar 110, where the stator excitation O-coil 220 and the rotor excitation C-coil 230 are wirelessly powered by OC-coil winding and are used to provide power for the torque measurement strain gauge 120, the rotor circuit board 130, and the rotation speed/direction sensor 140.
Referring to fig. 8, in the present embodiment, the stator case 210 is disposed on one side of the supporting frame 400 and corresponding to the rotor collecting device 100, and includes a case support 211, a heat sink 212, a case body 213 and a case bottom plate 215, the case support 211 is fixed on the connecting plate 403, the stator excitation O-shaped coil 220 is sleeved on the case support 211, the heat sink 212 is fixedly mounted on the case support 211 and located in the stator excitation O-shaped coil 220, and the heat sink 212 dissipates heat through the stator excitation O-shaped coil 220. The heat sink 212 and the stator excitation O-coil 220 are both located in the case body 213, and a case bottom plate 215 is provided at the bottom of the case body 213, and a case gasket 214 is disposed on the case bottom plate 215 and the case body 213 for sealing.
Referring to fig. 7 and 8, as a preferred embodiment, the stator analysis device 300 includes a control box 301, a stator circuit board 302 disposed on the control box 301, and a power voltage stabilizing module 303 and a local display screen 304 respectively connected to the stator circuit board 302, and is configured to receive the micro-strain signal and the rotational speed/steering signal acquired by the acquisition device 100, and analyze, process, store and display the micro-strain signal and the rotational speed/steering signal to obtain torque, power, rotational speed and steering information of the transmission shaft 500.
As shown in fig. 8, in the present embodiment, a power source voltage stabilizing module 303, a terminal strip 305, and a fuse 306 are further disposed in the control box 301, the power source voltage stabilizing module 303, the terminal strip 305, and the fuse 306 are respectively connected to the stator circuit board 302, a box cover 308 is disposed on the front surface of the control box 301, and the local display screen 304 is mounted on the box cover 308, so that the problem that the reading torque, power, rotation speed, and rotation direction cannot be directly observed on the measurement site is effectively solved through the local display screen 304.
As shown in fig. 8, in the present embodiment, a rotor excitation C-type coil 230 is disposed on the surface of the rotor sleeve 110 and arranged corresponding to the stator excitation O-type coil 220, and ensures that the wireless power supply signal is normal.
Example 3
Referring to fig. 9, a marine propeller shaft remote sensing type strain measurement method based on the measurement device is provided, which includes the following steps:
s1, the torque measurement strain gauge 120 is pasted and installed on the transmission shaft 500;
s2, connecting the torque measurement strain gauge 120 with the rotor circuit board 130 of the rotor acquisition device 100 through a cable;
s3, sleeving the rotor collecting device 100 on the transmission shaft 500 through the rotor lantern ring 110;
s4, mounting the rotor excitation C-shaped coil 230 of the wireless induction power supply device 200 on the surface of the rotor collar 110;
s5, aligning the stator excitation O-ring 220 of the wireless inductive powering device 200 with the surface of the rotor collar 110 to ensure the wireless powering signal is normal;
s6, switching on a power supply to enable the rotor acquisition device 100 and the transmission shaft 500 to synchronously rotate;
s7, acquiring the micro-strain signal and the rotating speed/steering signal of the transmission shaft 500 by the rotor acquisition device 100 and sending the signals to the stator analysis device 300;
and S8, analyzing, processing, storing and displaying the received micro-strain signal and the rotation speed/steering signal by the stator analysis device 300 to obtain the torque, power, rotation speed and steering information of the transmission shaft 500.
In this embodiment, the measurement method further includes: and S9, analyzing and processing the obtained torque, power, rotating speed and steering information of the transmission shaft 500 by the stator analysis device 300, and sending the information to a remote monitoring system for storage and display.
The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (9)
1. A remote sensing type strain measurement system for a marine propeller shaft, which is used for measuring a metal and/or non-metal transmission shaft, and is characterized by comprising:
the rotor acquisition system comprises a stress sheet torque measuring bridge and a rotating speed/steering sensor which are arranged on a transmission shaft to be detected, and is used for detecting a micro-strain signal and a rotating speed/steering signal of the transmission shaft and wirelessly transmitting the detected micro-strain signal and the detected rotating speed/steering signal to the stator analysis system;
the stator analysis system is used for receiving the micro-strain signal and the rotating speed/steering signal transmitted by the rotor acquisition system, and analyzing, processing, storing and displaying the micro-strain signal and the rotating speed/steering signal to obtain torque, power, rotating speed and steering information of the transmission shaft; and
and the wireless induction power supply system adopts an OC type coil winding wireless power supply and power supply excitation mode, is respectively connected with the rotor acquisition system and the stator analysis system, and is used for providing power supply for the stress sheet torque measurement bridge and the rotating speed/steering sensor.
2. The remote sensing strain measurement system for a marine propeller shaft of claim 1, wherein the rotor acquisition system further comprises:
the wireless energy transmission module is connected with a rotor excitation C-shaped coil of the wireless induction power supply system and used for providing a power supply for the rotor acquisition system;
the strain gauge excitation/data acquisition module is connected with the strain gauge torque measurement bridge and is used for acquiring a micro-strain signal of the transmission shaft; and
and the rotor micro-processing unit is connected with the strain gauge excitation/data acquisition module and the rotating speed/steering sensor and is used for receiving the micro-strain signal and the rotating speed/steering signal.
3. The remote sensing strain measurement system for a marine propulsion shaft according to claim 2, wherein the stator analysis system comprises:
the main control unit is connected with the rotor micro-processing unit through a wireless communication module and is used for receiving the micro-strain signal and the rotating speed/steering signal and analyzing and processing the received micro-strain signal and the rotating speed/steering signal;
the local display unit is connected with the main control unit and is used for displaying the torque, power, rotating speed and steering information of the transmission shaft in real time; and
and the storage unit is connected with the main control unit and is used for storing the torque, power, rotating speed and steering information of the transmission shaft in real time.
4. The remote sensing type strain measurement system for the marine propeller shaft according to claim 3, wherein the wireless communication module comprises a wireless data sending module connected with the rotor micro-processing unit and a wireless data receiving module connected with the main control unit.
5. The remote sensing type strain measurement system for the marine propeller shaft according to claim 3, further comprising: and the remote monitoring system is connected with the main control unit through an RS485 module and is used for remotely monitoring the torque, power, rotating speed and steering information of the transmission shaft in real time.
6. The remote sensing strain measurement system for the marine propulsion shaft according to claim 2, wherein the wireless energy transmission module comprises:
a sine signal generating and amplifying circuit for generating high frequency sine signal and amplifying the sine signal to drive the transmitting coil;
the O-shaped wireless energy transmitting end is a circularly wound spiral line, is connected to the sinusoidal signal generation amplifying circuit and is used for transmitting wireless energy;
the C-shaped wireless energy receiving end is a rectangular wound spiral line, integrally bends the spiral line into a C shape, is attached to the rotor, is connected in a rotor circuit and is used for receiving wireless energy;
and the rectifying and voltage-stabilizing circuit is used for receiving, rectifying, filtering, stabilizing and storing wireless energy.
7. Marine propeller shaft remote sensing type strain measuring device based on the system of any one of claims 1-6, characterized by comprising a rotor acquisition device (100) and a stator device consisting of a wireless induction power supply device (200) and a stator analysis device (300), wherein the wireless induction power supply device (200) and the stator analysis device (300) are positioned on the top of a supporting frame (400), and the system comprises:
the rotor acquisition device (100) is arranged on a transmission shaft (500) and comprises a rotor lantern ring (110), a torque measurement strain gauge (120), a rotor circuit board (130) arranged on the rotor lantern ring (110) and a rotating speed/steering sensor (140), wherein the rotor circuit board (130) is respectively connected with the torque measurement strain gauge (120) and the rotating speed/steering sensor (140) and is used for detecting a micro-strain signal and a rotating speed/steering signal of the transmission shaft (500) and wirelessly transmitting the detected micro-strain signal and the detected rotating speed/steering signal to a stator analysis device (300);
the wireless induction power supply device (200) comprises a stator box (210), a stator excitation O-shaped coil (220) arranged in the stator box (210) and a rotor excitation C-shaped coil (230) arranged on a rotor lantern ring (110), wherein the stator excitation O-shaped coil (220) and the rotor excitation C-shaped coil (230) are wirelessly powered in an OC type coil winding combination mode respectively and are used for providing power for the torque measurement strain gauge (120), the rotor circuit board (130), the rotating speed/steering sensor (140) and the wireless signal transmission module; and
the stator analysis device (300) comprises a control box (301), a stator circuit board (302) arranged on the control box (301), and a power supply voltage stabilization module (303) and a local display screen (304) which are respectively connected with the stator circuit board (302), and is used for receiving the micro-strain signal and the rotating speed/steering signal acquired by the acquisition device (100), analyzing, processing, storing and displaying the micro-strain signal and the rotating speed/steering signal so as to obtain the torque, power, rotating speed and steering information of the transmission shaft (500).
8. The marine propeller shaft remote sensing type strain measurement device according to claim 7, wherein the rotor collar (110) comprises a first semi-annular fixing ring (111) and a second semi-annular fixing ring (113) which are symmetrically arranged, and the first semi-annular fixing ring (111) and the second semi-annular fixing ring (113) are detachably sleeved on the transmission shaft (500) through bolts.
9. Marine propulsion shaft remote sensing strain gauge according to claim 7, characterised in that the rotor excitation C-coil (230) is arranged on the surface of the rotor collar (110) and arranged in correspondence with the stator excitation O-coil (220).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441057A (en) * | 2019-09-10 | 2019-11-12 | 上海船越机电设备有限公司 | A kind of marine shaft remote sensing type strain measurement system and its measuring device and measurement method |
| CN115165177A (en) * | 2022-07-06 | 2022-10-11 | 中机生产力促进中心有限公司 | Belt pulley type wireless torque measurement sensor for rotary shaft system |
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2019
- 2019-09-10 CN CN201921501988.4U patent/CN210513696U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441057A (en) * | 2019-09-10 | 2019-11-12 | 上海船越机电设备有限公司 | A kind of marine shaft remote sensing type strain measurement system and its measuring device and measurement method |
| CN110441057B (en) * | 2019-09-10 | 2024-03-08 | 北鲲睿航科技(上海)有限公司 | Marine propulsion shaft remote sensing type strain measurement system and measurement device and measurement method thereof |
| CN115165177A (en) * | 2022-07-06 | 2022-10-11 | 中机生产力促进中心有限公司 | Belt pulley type wireless torque measurement sensor for rotary shaft system |
| CN115165177B (en) * | 2022-07-06 | 2023-06-20 | 中机生产力促进中心有限公司 | Belt pulley type wireless torque measuring sensor for rotary shaft system |
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Effective date of registration: 20230918 Address after: Room 1458, Zone B, 5th Floor, Building 1, No. 668 Shangda Road, Baoshan District, Shanghai, 200444 Patentee after: Beikunruihang Technology (Shanghai) Co.,Ltd. Address before: 201306 room c3073, building 24, No. 2, Xincheng Road, Nicheng Town, Pudong New Area, Shanghai Patentee before: Shanghai Chuanyue Electromechanical Equipment Co.,Ltd. |