Novel marine shaft power meter

Abstract

The utility model relates to the technical field of ship equipment, and discloses a novel marine shaft power meter, which comprises a measured shaft and a support, and a magnetic steel ring and a controller are sequentially arranged on the surface of the measured shaft from left to right. According to the utility model, the rotating flexible light energy cell panel is charged through illumination emitted by the illumination equipment, the electric quantity of the flexible light energy cell panel after being charged is transmitted to the power supply module through linear connection, and the strain gauge is supplied with power through the power supply module, so that compared with a traditional device, the device has the advantages that a complicated power supply form is omitted in the middle, and the cost is reduced. The cost of maintaining and replacing the power supply slip ring is saved, the flexible light energy cell panel is located on the outer surface of the tested shaft, the lighting device can irradiate the flexible light energy cell panel all the time, the flexible light energy cell panel is made to be in a power generation state all the time, the situation that a strain gauge is powered off in a traditional power supply mode is avoided, and the reliability of the system is improved. And the stability of the whole shaft power meter is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ship equipment, and more specifically, to a novel ship shaft power meter. Background Art

[0002] In the current shipbuilding and offshore drilling platform industries, with the rapid development of technology, the design and construction of ships has shown a significant trend of large-scale and automation. This change has not only greatly improved the carrying capacity and operating efficiency of ships, but also put forward higher requirements for the performance and economy of ships. In this context, ensuring the efficiency, economy and safety of ships has become an important criterion for the shipbuilding industry. Among these indicators, the measurement of shaft power is particularly important. Shaft power is a key parameter reflecting the overall performance of the ship's propulsion system. It is directly related to the ship's fuel consumption, sailing speed and the service life of the main engine. Therefore, accurate measurement and evaluation of shaft power is crucial for shipyards and shipowners. It is an important technical means to ensure that the performance of new ships meets the standards and meets user needs. As a special measurement tool, the main function of the shaft power meter is to monitor the real torque and power on the ship's propulsion shaft in real time. By measuring the shaft power of the main engine under different working conditions, we can gain a deep understanding of the matching between the hull, the main engine and the propeller. This matching relationship has a decisive influence on the performance and safety of the ship.

[0003] The current shaft power meter uses an external power supply for the strain gauge, because the outer side of the strain gauge needs to be powered by a conductive slip ring. This form of power supply is costly and troublesome to maintain later. The conductive slip ring needs to be replaced regularly. Once the conductive slip ring is damaged, the strain gauge will be unable to supply power, resulting in a gap in the monitoring data. Therefore, we have proposed a new type of shaft power meter. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a novel marine shaft power meter, which has the advantage of good monitoring effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of marine shaft power meter, comprising a measured shaft and a bracket, wherein the surface of the measured shaft is provided with a controller and a magnetic steel ring from left to right in sequence, a strain gauge is provided inside the controller and the strain gauge is fixedly installed on the surface of the measured shaft, and a Hall speed sensor is fixedly installed on the side of the bracket.

[0006] As a preferred technical solution of the utility model, a flexible solar panel is fixedly installed on the surface of the measured shaft, a power supply module is fixedly installed on the top of the bracket, a HM I is fixedly installed on the front of the bracket, and a lighting device is fixedly installed on the back of the bracket.

[0007] As a preferred technical solution of the utility model, a Hall speed sensor is arranged in front of the magnetic steel ring, a lighting device is arranged on the side of the Hall speed sensor, and a flexible solar panel is arranged in front of the lighting device.

[0008] As a preferred technical solution of the present utility model, the controller has a rectangular shape and is made of stainless steel.

[0009] The lighting equipment used in this device is powered by DC24V direct voltage, which is a common voltage on ships. The DC24V direct voltage makes it more convenient to power the lighting equipment.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model rotates the measured shaft to rotate the magnetic steel ring on the surface of the measured shaft, and detects the rotation data of the magnetic steel ring and the peak value through the Hall speed sensor, so as to obtain the rotation speed through the measuring circuit. At the same time, the strain gauge also rotates synchronously. The surface of the measured shaft will be deformed during the rotation, which will cause the strain gauge to deform. The resistance value of the strain gauge is calculated by the controller to obtain the torque. Compared with the traditional device, this device can directly reflect the operating status and propulsion efficiency of the ship's main engine through real-time speed and torque data, so that by comparing the data under different working conditions, the overall performance of the ship, such as acceleration performance and cruising performance, can be evaluated. At the same time, by monitoring these data, potential problems can be discovered in time to avoid the expansion of faults. In addition, the real-time speed and torque data can help ship managers adjust the main engine speed and load distribution to achieve the best propulsion efficiency, thereby optimizing the navigation strategy, reducing the fuel consumption and emissions of the ship, and improving economic and environmental benefits.

[0012] 2. The utility model charges the rotating flexible solar panel through the light emitted by the lighting equipment, and the electricity of the charged flexible solar panel is transmitted to the power supply module through a linear connection, and the strain gauge is powered by the power supply module. Compared with the traditional device, this device saves the complicated power supply form in the middle, and saves the cost of maintenance and replacement of the power supply slip ring. The flexible solar panel is located on the outer surface of the measured shaft, and the lighting equipment can always irradiate the flexible solar panel, so that the flexible solar panel is always in the power generation state, avoiding the power failure of the strain gauge under the traditional power supply form, and ensuring the stability of the entire shaft power meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the magnetic steel ring of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the flexible solar cell panel of the utility model.

[0017] In the figure: 1. Magnetic steel ring; 2. Controller; 3. Strain gauge; 4. Power supply module; 5. Flexible solar panel; 6. Lighting equipment; 7. Hall speed sensor; 8. Bracket; 9. HM I; 10. Measured axis. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figures 1 to 4 As shown, the utility model provides a novel marine shaft power meter, comprising a measured shaft 10 and a bracket 8, a controller 2 and a magnetic steel ring 1 are arranged on the surface of the measured shaft 10 from left to right, a strain gauge 3 is arranged inside the controller 2 and the strain gauge 3 is fixedly installed on the surface of the measured shaft 10, and a Hall speed sensor 7 is fixedly installed on the side of the bracket 8;

[0020] When the real-time speed and torque of the magnetic steel ring 1 are required, the staff starts the Hall speed sensor 7 and makes the measured shaft 10 rotate at the same time. The rotation of the measured shaft 10 drives the magnetic steel ring 1 to rotate synchronously. The Hall speed sensor 7 continuously collects the data of the magnetic steel ring 1 and detects the peak value while the magnetic steel ring 1 rotates, so as to obtain the speed through the measuring circuit. At the same time, the strain gauge 3 rotates while the measured shaft 10 rotates. When the measured shaft 10 rotates, its surface will be slightly deformed, which will cause the corresponding strain gauge 3 to change. Then, the change in the resistance value of the strain gauge 3 is calculated by the controller 2 to calculate the torque, and finally the information is transmitted to each complex vision unit through the HMI9;

[0021] Rotating the measured shaft 10 causes the magnetic steel ring 1 on the surface of the measured shaft 10 to rotate, and the Hall speed sensor 7 detects the rotation data of the magnetic steel ring 1 and detects the peak value, so that the measuring circuit obtains the rotation speed. At the same time, the strain gauge 3 also rotates synchronously. The surface of the measured shaft 10 will be deformed during the rotation, which causes the strain gauge 3 to also deform. The resistance value of the strain gauge 3 is calculated by the controller 2 to obtain the torque. Compared with the traditional device, this device can directly reflect the operating status and propulsion efficiency of the ship's main engine through real-time speed and torque data, so that by comparing the data under different working conditions, the overall performance of the ship, such as acceleration performance and cruising performance, can be evaluated. At the same time, by monitoring these data, potential problems can be discovered in time to avoid the expansion of faults. In addition, the real-time speed and torque data can help ship managers adjust the main engine speed and load distribution to achieve the best propulsion efficiency, thereby optimizing the navigation strategy, reducing the ship's fuel consumption and emissions, and improving economic and environmental benefits.

[0022] Among them, a flexible solar panel 5 is fixedly installed on the surface of the measured shaft 10, a power supply module 4 is fixedly installed on the top of the bracket 8, an HMI 9 is fixedly installed on the front of the bracket 8, and a lighting device 6 is fixedly installed on the back of the bracket 8;

[0023] When the measured shaft 10 rotates, the flexible photovoltaic panel 5 on the surface of the measured shaft 10 also rotates synchronously, and the flexible photovoltaic panel 5 generates electricity through the light emitted by the lighting device 6, and the electric energy is transmitted to the power supply module 4 through a linear connection, and the strain gauge 3 is powered by the electric power inside the power supply module 4;

[0024] The light emitted by the lighting device 6 charges the rotating flexible photovoltaic panel 5, and the electricity of the flexible photovoltaic panel 5 after charging is transmitted to the power supply module 4 through a linear connection, and the strain gauge 3 is powered by the power supply module 4. Compared with the traditional device, this device saves the complicated power supply form in the middle, and saves the cost of maintenance and replacement of the power supply slip ring. The flexible photovoltaic panel 5 is located on the outer surface of the measured shaft 10. The lighting device 6 can always irradiate the flexible photovoltaic panel 5, so that the flexible photovoltaic panel 5 is always in a power generation state, avoiding the situation that the strain gauge 3 is powered off under the traditional power supply form, and ensuring the stability of the entire shaft power meter;

[0025] Among them, a Hall speed sensor 7 is arranged in front of the magnetic steel ring 1, a lighting device 6 is arranged on the side of the Hall speed sensor 7, and a flexible solar panel 5 is arranged in front of the lighting device 6;

[0026] A Hall speed sensor 7 is arranged in front of the magnetic steel ring 1, and a lighting device 6 is arranged in front of the flexible solar panel 5. This method makes the Hall speed sensor 7 more effective when detecting the magnetic steel ring 1 and when the lighting device 6 shines light on the flexible solar panel 5, thereby improving the overall efficiency of the device.

[0027] The controller 2 has a rectangular shape and is made of stainless steel.

[0028] The controller 2 has a rectangular shape and is made of stainless steel. The stainless steel has high strength and is not easy to be damaged. It also has good anti-rust performance and is not easy to rust, thereby ensuring the service life of the controller 2.

[0029] The working principle and use process of this utility model:

[0030] When it is necessary to implement real-time speed and torque on the magnetic steel ring 1, the staff starts the Hall speed sensor 7 and rotates the measured shaft 10 at the same time. The rotation of the measured shaft 10 drives the magnetic steel ring 1 to rotate synchronously. The Hall speed sensor 7 continuously collects data of the magnetic steel ring 1 and detects the peak value while the magnetic steel ring 1 rotates, so as to obtain the speed through the measuring circuit. At the same time, the strain gauge 3 rotates while the measured shaft 10 rotates. When the measured shaft 10 rotates, its surface will produce slight deformation, which will cause the corresponding strain gauge 3 to change. Then, the change in resistance of the strain gauge 3 is calculated by the controller 2 to calculate the torque, and finally the information is transmitted to each complex vision unit through HM I9.

[0031] When the measured shaft 10 rotates, the flexible photovoltaic panel 5 on the surface of the measured shaft 10 also rotates synchronously, and the flexible photovoltaic panel 5 is powered by the light emitted by the lighting device 6. The electric energy is transmitted to the power supply module 4 through a linear connection, and the strain gauge 3 is powered by the electric power inside the power supply module 4.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel marine shaft power meter, comprising a shaft to be measured (10) and a bracket (8), characterized in that: The surface of the measured shaft (10) is provided with a controller (2) and a magnetic steel ring (1) in sequence from left to right, a power supply module (4) is fixedly installed on the top of the controller (2), a strain gauge (3) is provided inside the controller (2) and the strain gauge (3) is fixedly installed on the surface of the measured shaft (10), and a Hall speed sensor (7) is fixedly installed on the side of the bracket (8).

2. A novel marine shaft power meter according to claim 1, characterized in that: A flexible photovoltaic panel (5) is fixedly mounted on the surface of the measured shaft (10), a HMI (9) is fixedly mounted on the front of the bracket (8), and a lighting device (6) is fixedly mounted on the back of the bracket (8).

3. A novel marine shaft power meter according to claim 1, characterized in that: A Hall speed sensor (7) is arranged in front of the magnetic steel ring (1), a lighting device (6) is arranged on the side of the Hall speed sensor (7), and a flexible solar cell panel (5) is arranged in front of the lighting device (6).

4. A novel marine shaft power meter according to claim 1, characterized in that: The controller (2) has a rectangular shape and is made of stainless steel.

Images