CN113428317A - Device for measuring thrust of marine propeller - Google Patents
Device for measuring thrust of marine propeller Download PDFInfo
- Publication number
- CN113428317A CN113428317A CN202110830540.2A CN202110830540A CN113428317A CN 113428317 A CN113428317 A CN 113428317A CN 202110830540 A CN202110830540 A CN 202110830540A CN 113428317 A CN113428317 A CN 113428317A
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- CN
- China
- Prior art keywords
- thrust
- sensor
- thrust bearing
- propeller
- measuring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention aims to provide a device for measuring thrust of a marine propeller, which comprises a thrust bearing, a forward sensor, a reverse sensor and a sensor cascade box, wherein the thrust bearing comprises a thrust bearing cover, a thrust bearing seat and a thrust pad, the thrust pad is annularly arranged in a space formed by the thrust bearing cover and the thrust bearing seat, a reasoning sensor wiring terminal is arranged on the thrust bearing seat, the thrust bearing is provided with the forward sensor and the reverse sensor, and the forward sensor and the reverse sensor are connected with the sensor cascade box through sensor wiring cables. The method can accurately measure the propeller thrust when the ship sails at different speeds, provide valuable measured data reference during subsequent ship design, judge the efficiency changes of the ship propulsion host, the transmission device and the propeller in advance according to the change of the thrust display value, and carry out fault pre-judgment.
Description
Technical Field
The invention relates to a device for measuring thrust of a ship shafting, in particular to a device for measuring thrust of a ship propeller.
Background
When the ship sails, the main engine drives the propeller to rotate to push the ship body to advance or retreat, the thrust exerted on the ship body by the propeller determines the sailing speed and the maneuverability of the ship, the propeller thrust is one of key technical indexes in ship design, the propeller thrust not only determines the sailing speed of the ship, but also is an important basis for selecting the power of the main engine and is a key characteristic for designing a propulsion system. However, the propeller thrust during the design of most of domestic ships is determined according to simulation calculation, actual test data is lacked, and a larger host must be selected for ensuring the navigational speed during the design of the ships, so that resource waste is caused.
Disclosure of Invention
The invention aims to provide a propeller thrust measuring device for a ship, which can accurately measure propeller thrust when the ship sails at different speeds, provide valuable measured data reference during subsequent ship design, judge efficiency changes of a ship propulsion host, a transmission device and a propeller in advance according to changes of a thrust display value and carry out fault prediction.
The purpose of the invention is realized as follows:
the invention relates to a device for measuring thrust of a marine propeller, which is characterized in that: the thrust bearing comprises a thrust bearing cover, a thrust bearing seat and a thrust pad, the thrust pad is annularly arranged in a space formed by the thrust bearing cover and the thrust bearing seat, an inference sensor wiring terminal is arranged on the thrust bearing seat, the thrust bearing is provided with a forward sensor and a reverse sensor, and the forward sensor and the reverse sensor are connected with a sensor cascade box through sensor wiring cables.
The present invention may further comprise:
1. the thrust pads comprise thrust pads comprising inferential measurement sensors, and the thrust pads comprising the inferential measurement sensors are 2 and are arranged at 180 degrees.
2. The thrust pad is positioned in a space formed by the thrust bearing cover and the thrust bearing seat through a positioning pin.
3. The forward sensor and the reverse sensor are spoke type force sensors.
The invention has the advantages that: the method can accurately measure the propeller thrust when the ship sails at different speeds, provide valuable measured data reference during subsequent ship design, judge the efficiency changes of the ship propulsion host, the transmission device and the propeller in advance according to the change of the thrust display value, and carry out fault pre-judgment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a thrust bearing structure.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
the invention aims to provide a device for measuring the thrust of a marine propeller, which is combined with a figure 1-2, and has the working principle that a thrust sensor is utilized to measure the pressure of a thrust bearing block of a ship so as to calculate the thrust of the propeller, the thrust sensor is arranged in the thrust bearing block, signals of the thrust sensor are cascaded by a sensor cascade box, then, forward and reverse signals are sent to a thrust measuring and displaying and transmitting device on an instrument box beside a machine, the signals are processed in the thrust displaying and transmitting device, and the thrust value is displayed on site.
The device comprises a forward sensor 1, a reverse sensor 2, a sensor wiring cable 3, a sensor cascade box 4, a signal wire 5, a thrust measurement display instrument 6 and a remote output signal wire 7. The device is when thrust bearing bears thrust, the sensor 1 of just driving, the sensor 2 atress of backing a car warp, the sensor 1 of just driving, the sensor 2 size of warping of backing a car is exported to sensor cascade box 4 through sensor cable 3, sensor cascade box 4 receives behind the voltage signal through signal line 5 output to thrust measurement display instrument 6, thrust measurement display instrument 6 shows the actual thrust size and can be with thrust signal transmission to the position that needs observed through long-range output signal line 7, conveniently observe and carry out the fault prejudgement.
The thrust measuring sensor is arranged in the thrust bearing, the thrust of the propeller is borne by the thrust bearing, and the thrust value of the propeller can be accurately measured by measuring the pressure borne by the thrust bearing pads. And 2 of the thrust pads are provided with thrust sensors, and the thrust of a single pad is calculated by measuring the thrust of the 2 pads and the total thrust borne by the thrust bearing is calculated. The thrust pads are installed in the thrust bearing seat, and the number and the size of the thrust pads depend on the magnitude of the borne thrust.
The invention is illustrated with reference to fig. 2: the thrust bearing comprises a thrust bearing seat 11, a thrust bearing cover 12, a thrust pad 13, a thrust sensor connecting terminal 14, a thrust pad 15 containing a thrust measuring sensor, a wire clamp 16, a sensor cable 17 and a positioning pin 18. Thrust pads 13 and thrust pads 15 containing thrust measurement sensors are annularly arranged in the thrust bearing seat 11 and the thrust bearing cover 12, are positioned by positioning pins 18, and inference sensor cables 17 are specified in the thrust bearing seat 11 through clamps 16 and are connected with the sensor cascade box 4 in fig. 1 through thrust sensor connection terminals 14. Thrust pads 15 containing thrust measuring sensors are uniformly distributed on the thrust bearing seat 11 and the thrust bearing cover 12 according to 180 degrees.
The forward sensor 1 and the reverse sensor 2 are spoke type force sensors and are arranged in the thrust tile, and when the thrust tile is stressed and deformed, the elastic material of the sensor is deformed, so that the resistance value of a strain gauge adhered to the elastic material is changed. The change of the resistance value of the strain gauge is converted into the change of the output voltage of the bridge, and the change is processed by the signal of the sensor cascade box 4, and the magnitude of the thrust at the moment is calculated and displayed on the thrust measuring and displaying instrument 6. When measuring thrust, the sensor cascade box 4 functions in parallel connection of a plurality of thrust sensors, impedance adjustment, and the like.
Claims (4)
1. A marine propeller thrust measuring device is characterized in that: the thrust bearing comprises a thrust bearing cover, a thrust bearing seat and a thrust pad, the thrust pad is annularly arranged in a space formed by the thrust bearing cover and the thrust bearing seat, an inference sensor wiring terminal is arranged on the thrust bearing seat, the thrust bearing is provided with a forward sensor and a reverse sensor, and the forward sensor and the reverse sensor are connected with a sensor cascade box through sensor wiring cables.
2. A device for measuring thrust of a marine propeller as claimed in claim 1, wherein: the thrust pads comprise thrust pads comprising inferential measurement sensors, and the thrust pads comprising the inferential measurement sensors are 2 and are arranged at 180 degrees.
3. A device for measuring thrust of a marine propeller as claimed in claim 1, wherein: the thrust pad is positioned in a space formed by the thrust bearing cover and the thrust bearing seat through a positioning pin.
4. A device for measuring thrust of a marine propeller as claimed in claim 1, wherein: the forward sensor and the reverse sensor are spoke type force sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830540.2A CN113428317A (en) | 2021-07-22 | 2021-07-22 | Device for measuring thrust of marine propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830540.2A CN113428317A (en) | 2021-07-22 | 2021-07-22 | Device for measuring thrust of marine propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113428317A true CN113428317A (en) | 2021-09-24 |
Family
ID=77761357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110830540.2A Pending CN113428317A (en) | 2021-07-22 | 2021-07-22 | Device for measuring thrust of marine propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113428317A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598617A (en) * | 2009-07-10 | 2009-12-09 | 中国船舶重工集团公司第七○二研究所 | Axle-system axial pulsating force measurement device |
| CN103776573A (en) * | 2014-01-24 | 2014-05-07 | 华中科技大学 | Measuring device and method for thrust loading of sliding thrust bearing, and application of measuring device and method |
| CN104494783A (en) * | 2014-12-25 | 2015-04-08 | 华中科技大学 | System for executing mechanical and shafting vibration measurement of ship thruster model |
| CN204330190U (en) * | 2015-01-08 | 2015-05-13 | 沈阳透平机械股份有限公司 | For the axial thrust-measuring device of turbocompressor |
| CN107368662A (en) * | 2017-07-29 | 2017-11-21 | 哈尔滨理工大学 | A kind of equal loading capability computational methods of variation rigidity point support tilting thrust bearing |
| CN107605942A (en) * | 2017-08-24 | 2018-01-19 | 中国船舶重工集团公司第七〇九研究所 | A kind of external water lubricating thrust bearing peculiar to vessel |
-
2021
- 2021-07-22 CN CN202110830540.2A patent/CN113428317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598617A (en) * | 2009-07-10 | 2009-12-09 | 中国船舶重工集团公司第七○二研究所 | Axle-system axial pulsating force measurement device |
| CN103776573A (en) * | 2014-01-24 | 2014-05-07 | 华中科技大学 | Measuring device and method for thrust loading of sliding thrust bearing, and application of measuring device and method |
| CN104494783A (en) * | 2014-12-25 | 2015-04-08 | 华中科技大学 | System for executing mechanical and shafting vibration measurement of ship thruster model |
| CN204330190U (en) * | 2015-01-08 | 2015-05-13 | 沈阳透平机械股份有限公司 | For the axial thrust-measuring device of turbocompressor |
| CN107368662A (en) * | 2017-07-29 | 2017-11-21 | 哈尔滨理工大学 | A kind of equal loading capability computational methods of variation rigidity point support tilting thrust bearing |
| CN107605942A (en) * | 2017-08-24 | 2018-01-19 | 中国船舶重工集团公司第七〇九研究所 | A kind of external water lubricating thrust bearing peculiar to vessel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20210924 |