CN115593588A - Ship outboard tail shaft sinking amount and vibration online monitoring device - Google Patents
Ship outboard tail shaft sinking amount and vibration online monitoring device Download PDFInfo
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- CN115593588A CN115593588A CN202211126654.XA CN202211126654A CN115593588A CN 115593588 A CN115593588 A CN 115593588A CN 202211126654 A CN202211126654 A CN 202211126654A CN 115593588 A CN115593588 A CN 115593588A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 49
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- 238000004891 communication Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
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- 230000003750 conditioning effect Effects 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
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- 238000005299 abrasion Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
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- 230000003449 preventive effect Effects 0.000 abstract description 4
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- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
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- 230000007613 environmental effect Effects 0.000 description 2
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- 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
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- 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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Abstract
The invention relates to the technical field of ship measuring equipment, in particular to an online monitoring device for settlement and vibration of an outboard tail shaft of a ship. The online monitoring device provided by the application fills the blank of the existing online real-time monitoring means of the ship outboard tail shaft, can replace the traditional manual mechanical measuring method, and improves convenience and instantaneity; the functions are highly integrated, the occupation of total resources is small, the functions are powerful, and the functions of abrasion loss, abrasion line type, tail shaft transverse vibration monitoring and the like are realized; the outboard measuring instrument has good corrosion resistance and pressure resistance, and can be applied to the fields of civil high-end ships and surface ships, underwater submerging devices and the like; the method can provide an effective means for developing preventive maintenance of the ship, and also provides effective support for intelligent monitoring, operation and management and the like of a future ship propulsion system.
Description
Technical Field
The invention relates to the technical field of ship measuring equipment, in particular to an online monitoring device for settlement and vibration of an outboard tail shaft of a ship.
Background
The tail shaft is an important component of a ship propulsion shaft system, the tail end of the tail shaft is provided with a propeller, and the head end of the tail shaft is connected with other shaft system transmission equipment in a cabin through a coupler to play a role in transmitting the torque of a main engine and the thrust of the propeller. The tail shaft is mostly outboard supported by water lubricated tail shaft bearings also outboard. Due to the unbalance of the rotating parts and the concentrated mass formed by the propeller and the tail shaft-the rotordynamic properties of the cantilever system, the propulsion shafting, when running, generates a gyroscopic (lateral) vibration, wherein the tail end of the outboard tail shaft is one of the parts with the largest vibration amplitude. The shafting rotary vibration can be transmitted to the hull structure through passages such as a shafting and a tail shaft bearing, so that the vibration sound radiation of the stern hull structure is induced and generated. In addition, the tail shaft bearing for supporting the outboard tail shaft has severe working conditions, adopts seawater for lubrication and cooling, bears the action of heavy load, friction and vibration impact, can be invaded by foreign matters such as silt, marine organisms, fishing nets and the like, is easy to generate abnormal abrasion and rapid abrasion, thereby causing the tail shaft to sink, changing the load distribution characteristic of a shaft system and the working conditions of the tail shaft bearing, and bringing adverse effects to the reliability of safe operation and long-term operation of a propulsion shaft system. Therefore, it is necessary to monitor the settlement and vibration of the outboard tail shaft of the ship on line.
However, since the object is located outboard, the environmental conditions are severe, and it is difficult to provide an effective online monitoring means. In the prior art, two technical means are generally adopted for the sinking amount of the tail shaft or the abrasion loss of a bearing of the tail shaft, and one method is that a mechanical type tail shaft sinking measuring instrument is adopted: the thimble of the mechanical tail shaft sinking measuring instrument is marked with scales, the thimble (or a mandril) is propped against the tail shaft through a sinking instrument measuring hole reserved in a hull structure and a tail shaft bearing in advance, and the sinking amount in a certain period is judged by measuring values twice; this approach requires measurements during docking of the vessel. Another method is to carry the meter at the dock by a diver and dive to near the propeller for manual operation: the monitoring means is not automatic enough, the operation is extremely difficult, the practicability is not high, the real ship is often in an 'installation but not' state, the control on the sinking amount of the tail shaft and the abrasion loss of the bearing of the tail shaft is not timely enough, and the problem that the sinking amount of the tail shaft is exposed after the shafting operation actually breaks down is often caused; for the lateral vibration of the outboard tail shaft, the outboard sensor is difficult to arrange and is difficult to monitor, so that the monitoring of the lateral vibration of the outboard tail shaft is lacked.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a boats and ships outboard tail shaft deflection and vibration on-line monitoring device, the deflection of the outboard tail shaft of monitoring boats and ships and the transverse vibration of tail shaft in real time on line, and occupation space is little, the function integrated level is high.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a boats and ships outboard tail shaft deflection and vibration on-line monitoring device for detect the deflection and the lateral vibration of boats and ships tail shaft 5, the screw 1 of boats and ships is installed in the tail end of tail shaft 5, tail shaft 5 is supported by tail shaft front bearing 7 and tail shaft rear bearing 4, tail shaft front bearing 7 and tail shaft rear bearing 4 are all installed on boats and ships outboard hull structure 3, on-line monitoring device includes outboard tail shaft deflection and vibration integrated measuring apparatu 2, withstand voltage watertight cable 6 and monitoring devices host computer 8, outboard tail shaft deflection and vibration integrated measuring apparatu 2 pass through the bolt installation on the tail end face of tail shaft rear bearing 4, withstand voltage watertight cable 6 one end is connected the withstand voltage watertight connector at outboard tail shaft deflection and vibration integrated measuring apparatu 2 top, the other end along boats and ships outboard structure inner wall to pass through the wiring after cabin tube member advances the cabin with the articulate bottom of monitoring devices host computer 8, monitoring devices host computer 8 installs in the boats and ships cabin for receive and handle the outboard tail shaft deflection and vibration integrated measuring apparatu 2's data, and carry out through the monitoring devices host computer through the integrated screen that shows on the display panel.
Further, outboard tail shaft sinks and is equipped with 5 integrated eddy current displacement sensors with vibration integrated measuring apparatu 2 inside, is respectively: the integrated eddy current displacement sensor 1#9, the integrated eddy current displacement sensor 2#10, the integrated eddy current displacement sensor 3#11, the integrated eddy current displacement sensor 4#12 and the integrated eddy current displacement sensor 5#13.
Furthermore, the integrated eddy current displacement sensor 3#11 is arranged at the inner top of the tester and is superposed with the central line of the inner hole of the rear bearing 4 of the tail shaft in the vertical direction.
Further, the integrated eddy current displacement sensor 2#10 and the integrated eddy current displacement sensor 4#12 are respectively and symmetrically arranged on the left side and the right side of the integrated eddy current displacement sensor 3#11, and an included angle α between the integrated eddy current displacement sensor and the vertical direction center line is set within a range of 10 degrees to 15 degrees.
Further, the integrated eddy current displacement sensor 1#9 and the integrated eddy current displacement sensor 5#13 are arranged in the upper half portion of the tester and symmetrically arranged relative to the vertical direction center line, and an included angle β between the integrated eddy current displacement sensor 1#9 and the integrated eddy current displacement sensor 5#13 and the vertical direction center line is set to 45 °.
Further, outboard tail shaft sinks and vibrates 2 whole adoption annular flange structures of integrated measuring apparatuss, including end cover 14, gland 15 and measuring apparatuss casing, end cover 14 and gland 15 all reserve 5 integral type eddy current displacement sensor's installation hole site, cable lead wire groove and fastener hole site, measuring apparatuss casing top is equipped with withstand voltage watertight joint 16, 5 integral type eddy current displacement sensor's signal line gather extremely through cable lead wire groove withstand voltage watertight joint 16 department and with withstand voltage watertight cable 6 is connected.
Furthermore, the end cover 14 and the gland 15 are made of seawater-resistant engineering plastics and are integrally cast and molded through a mold.
Further, the monitoring device host 8 comprises a box body 17, a monitoring module 18, a status panel 19, an alarm indicator lamp 20, a switch knob 21 and a nameplate 22;
the box body 17 is made of magnesium-aluminum alloy, ventilation and heat dissipation holes are formed in the left side and the right side, wiring holes are formed in the bottom of the box body, and elastic vibration isolation mounting is conducted on the back of the box body through a shock absorber;
the monitoring module 18 is reversely mounted on a back plate of the box body 17 by adopting a plug-in structure, and the monitoring module 18 is integrated with a power supply module, a communication management module and a signal acquisition and conditioning module;
a display screen and a status indicator lamp are integrated on the status panel 19;
the alarm indicator light 20, the switch knob 21 and the nameplate 22 are all arranged on the front panel of the box body 17.
Further, the monitoring device host 8 is specifically installed in the ship cabin by adopting a wall-mounted mode.
Compared with the prior art, the invention has the following main advantages:
1. the ship outboard tail shaft sinking and vibration online monitoring device fills the blank of the existing ship outboard tail shaft online real-time monitoring means, can replace the traditional manual mechanical measuring method, and improves convenience and real-time performance;
2. the ship outboard tail shaft sinking amount and vibration online monitoring device is highly integrated in function, small in overall resource occupation and powerful in function, and has the functions of monitoring the abrasion loss, the abrasion line type, the transverse vibration of the tail shaft and the like;
3. the ship outboard tail shaft sinking and vibration online monitoring device has good corrosion resistance and pressure resistance of the outboard measuring instrument, and can be applied to the fields of civil high-end ships and surface ships, underwater submerging devices and the like;
4. the ship outboard tail shaft sinking and vibration online monitoring device can provide an effective means for developing preventive maintenance of ships and also provide effective support for intelligent monitoring, operation and management and the like of a future ship propulsion system.
Drawings
FIG. 1 is a schematic view of the overall structure and installation of the ship outboard tail shaft sinkage and vibration online monitoring device of the invention;
FIG. 2 is a layout diagram of the internal sensors of the outboard tail shaft sinking and vibration integrated measuring instrument of the invention;
FIG. 3 is a schematic structural view of the outboard tail shaft sinking and vibration integrated measuring instrument of the present invention;
FIG. 4 is a schematic end view of the outboard tail shaft sinking and vibration integrating measuring instrument of the present invention;
FIG. 5 is a schematic view of a gland of the outboard tail shaft sinking and vibration integrated gauge of the present invention;
FIG. 6 is a schematic view of the pressure-resistant watertight joint of the outboard tail shaft sinking and vibration integrated measuring instrument of the present invention;
fig. 7 is a schematic structural diagram of a main engine of the outboard tail shaft sinking and vibration online monitoring device of the invention.
In the figure: 1. a propeller; 2. outboard tail shaft sinking and vibration integrated measuring instrument; 3. a hull structure; 4. a rear bearing of the tail shaft; 5. a tail shaft; 6. a pressure-resistant watertight cable; 7. a tail shaft front bearing; 8. a monitoring device host; 9. 1# of integrated eddy current displacement sensor; 10. integral eddy current displacement sensor 2#; 11. an integrated eddy current displacement sensor 3#; 12. integral eddy current displacement sensor 4#; 13. integral eddy current displacement sensor 5#; 14. an end cap; 15. a gland; 16. a pressure-resistant watertight joint; 17. a box body; 18. a monitoring module; 19. a status panel; 20. an alarm indicator light; 21. a switch knob; 22. a nameplate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
As shown in fig. 1, the ship outboard tail shaft sinking and vibration online monitoring device implemented according to the invention comprises an outboard tail shaft sinking and vibration integrated measuring instrument 2, a pressure-resistant watertight cable 6, a monitoring device host 8 and the like; the related objects are as follows: the ship comprises a propeller 1, a ship body structure 3, a tail shaft rear bearing 4 (or called propeller bearing), a tail shaft 5 (or called propeller shaft) and a tail shaft front bearing 7.
Wherein, the positional relationship of each part of the ship is as follows:
the propeller 1 of the ship is mounted at the tail end of the tail shaft 5 and at the tail end of the hull structure 3, and the propeller 1 and the tail shaft 5 are supported by a tail shaft front bearing 7 and a tail shaft rear bearing 4 which are outboard and mounted on the hull structure 3, wherein the tail shaft rear bearing 4 is also called a propeller bearing.
Wherein, the working characteristics of each part of the ship are as follows:
when the ship sails, the propeller 1 and the tail shaft 5 are driven by the main engine to operate, a friction pair is generated between the tail shaft 5 and the tail shaft front bearing 7 and the tail shaft rear bearing 4, lubricating and cooling water is provided by an outboard seawater or seawater system in a cabin, and a sufficient hydrodynamic force lubricating film is difficult to form due to low viscosity of the water;
the propeller 1 is large in mass and cantilever-mounted, so that the load borne by the rear bearing 4 of the tail shaft is large and uneven, and an edge load effect is formed;
in addition, in order to control the stern vibration of the ship, a high-end civil ship or military ship propulsion system generally adopts a lower rated rotating speed, so that the relative linear velocity between a rear bearing 4 of the tail shaft and a friction pair of the tail shaft 5 is lower;
in summary, the working state between the tail shaft 5 and the tail shaft rear bearing 4 presents the characteristics of low speed, heavy load, unbalance load, etc., which can cause the following problems:
firstly, the problems of rapid abrasion, abnormal abrasion and the like of the rear bearing 4 of the tail shaft can be caused, so that the risk of the operation safety of a propulsion shafting and the planned docking maintenance are caused, and the underway rate of a ship is influenced;
secondly, the propulsion shafting can induce low-speed abnormal friction noise at the rear bearing 4 part of the tail shaft, so that the quiet and stable operation of the propulsion shafting is influenced, and the navigation concealment can be influenced for ships, particularly underwater vehicles;
thirdly, the load distribution state and the shafting vibration characteristic of the propulsion shafting can be changed, so that the propulsion shafting and even the vibration sound radiation characteristic of the tail of the ship are influenced, and the tail noise control of the ship is not facilitated.
By the arrangement of the online monitoring device for the sinkage and vibration of the ship outboard tail shaft, the sinkage and transverse vibration of the tail shaft 5 can be monitored online in real time when a ship sails, so that the working state of a propulsion shaft system can be fully mastered and pre-judged, and preventive maintenance can be performed in a targeted manner, and the safety, reliability, economical efficiency and the like of ship sailing are improved.
The invention relates to an online monitoring device for the settlement and vibration of an outboard tail shaft of a ship, which is composed of an outboard tail shaft settlement and vibration integrated measuring instrument 2, a pressure-resistant watertight cable 6, a monitoring device host 8 and the like as shown in figure 1;
wherein, the outboard tail shaft sinking and vibration integrated measuring instrument 2 is arranged on the tail end face of the tail shaft rear bearing 4 through a bolt; one end of a pressure-resistant watertight cable 6 is connected with a pressure-resistant watertight joint at the top of the outboard tail shaft sinking and vibration integrated measuring instrument 2, the pressure-resistant watertight joint is wired along the inner wall of the outboard hull structure of the ship and enters the cabin through a cabin penetrating pipe 9, and the other end of the pressure-resistant watertight cable is connected with a joint at the bottom of a monitoring device main machine 8; after the monitoring device host 8 acquires the monitoring data, it performs necessary processing operations, and then displays the status on the display screen integrated on the panel of the monitoring device host 8. Through the process, the outboard monitoring signals are collected, transmitted, stored and displayed.
As shown in fig. 2, five integrated eddy current displacement sensors (1 #,2#,3#,4#,5 #) are integrated inside the outboard tail shaft sinking and vibration integrated measuring instrument 2;
the integrated eddy current displacement sensor 3# is arranged at the top and is superposed with a theoretical central line in the direction perpendicular to the inner hole of the tail shaft rear bearing 4#, the integrated eddy current displacement sensor 2# and the integrated eddy current displacement sensor 4# are respectively arranged at the left side and the right side of the top of the integrated eddy current displacement sensor 3# and are symmetrically arranged, and an included angle alpha between each sensor and the central line is set within the range of 10-15 degrees; the integrated eddy current displacement sensor 1# and the integrated eddy current displacement sensor 5# are arranged at the upper half part of the measuring instrument and are symmetrically arranged along a theoretical center line in the direction vertical to the inner hole of the rear bearing 4 of the tail shaft, and the included angle beta between each sensor and the center line is set to be 45 degrees;
the included angles between the integrated eddy current displacement sensor 1# and the integrated eddy current displacement sensor 5# which are arranged on the upper half part of the tail shaft bearing 4 and the vertical central line are 45 degrees respectively, vibration displacement monitoring in two directions can be carried out simultaneously, displacement frequency spectrum curves in two directions are obtained through Fourier transform, namely, a synthetic axis track and each harmonic axis track formed by tail shaft vibration are obtained, so that the vibration characteristics of the outboard propeller-tail shaft-bearing system during shafting operation can be accurately mastered, and the parameters comprise vibration displacement amplitude, characteristic frequency, axis track, shaft central track line in the starting and stopping processes and the like.
As shown in fig. 3 to 6, the outboard tail shaft sinking and vibration integrated measuring instrument 2 integrally adopts an annular flange structure, and is composed of an end cover 14, a gland 15, an integrated eddy current displacement sensor (1 #,2#,3#,4#,5 #), a pressure-resistant watertight joint 16 and a fastener;
the end cover 14 and the gland 15 are made of seawater-resistant engineering plastics and are integrally cast and molded through a mold. Sensor mounting and fixing hole sites, sensor cable lead grooves and fastener hole sites are reserved on the end cover 14 and the gland 15. After the five integrated eddy current sensors are installed and fixed on the end cover 14, sensor cables are laid along the lead grooves, the five sensor information number leads are connected to a pressure-resistant watertight connector 16 at the top of the shell after being synthesized, and then signals are connected with a monitoring device host computer 8 in the cabin through watertight cables, so that monitoring signal transmission is achieved.
As shown in fig. 7, the monitoring device main unit 8 is installed in the cabin of the ship, and may be installed on a wall, and the main unit panel faces a user. The monitoring device host 8 comprises a box body 17, a monitoring module 18, a state panel 19, an indicator light 20, a switch knob 21, a nameplate 22 and the like;
wherein, the box body 17 is made of magnesium-aluminum alloy, the left side and the right side are provided with ventilation and heat dissipation holes, the bottom is provided with wiring holes, and the back can be provided with a shock absorber to realize elastic vibration isolation installation; the monitoring module 18 adopts a plug-in structure, supports hot plugging, is reversely arranged on a back plate of the box body 17, integrates a power supply module, a communication management module, a signal acquisition conditioning module and the like according to the function setting of the monitoring device, and realizes the power supply of the sensor and the monitoring device host and the data acquisition, processing and communication (internal communication and external communication); the status panel 19 can display the running status of the monitored object in real time by using a display screen or display the working status of each channel of the monitoring module in real time by using an indicator light according to the functional requirements; the panel of the box body 17 is provided with an alarm indicator light 20 for displaying and alarming the working state of the monitoring device; a panel of the box body 17 is provided with a closing knob 21 for performing starting and closing operations on the monitoring device; the box 17 is provided with a nameplate 22 on the panel for displaying the product identification.
Furthermore, through the integration of the components, the settlement and vibration of the outboard tail shaft of the ship can be monitored on line.
Furthermore, the ship outboard tail shaft sinking and vibration online monitoring device provided by the invention is specially used for the outboard part of the tail shaft with the worst use working condition and environmental condition, can effectively solve the problems of lagging and poor convenience and real-time performance of the current ship outboard tail shaft monitoring means, and can be used for assisting the intelligent monitoring and management of the ship, improving the reliability of the ship, preventing the occurrence or deterioration of the abnormal friction and abnormal vibration faults of the outboard tail shaft, preventing the unplanned maintenance and improving the ship penetration rate.
In summary, the following steps:
1. the ship outboard tail shaft sinkage and vibration online monitoring device fills the blank of the existing ship outboard tail shaft online real-time monitoring means, can replace the traditional manual mechanical measuring method, and improves convenience and real-time performance;
2. the ship outboard tail shaft sinking amount and vibration online monitoring device is highly integrated in function, small in overall resource occupation and powerful in function, and has the functions of monitoring the abrasion loss, the abrasion line type, the transverse vibration of the tail shaft and the like;
3. the ship outboard tail shaft sinking and vibration online monitoring device has good corrosion resistance and pressure resistance of the outboard measuring instrument, and can be applied to the fields of civil high-end ships and surface ships, underwater submerging devices and the like;
4. the ship outboard tail shaft sinking and vibration online monitoring device can provide an effective means for developing preventive maintenance of ships and also provide effective support for intelligent monitoring, operation and management and the like of a future ship propulsion system.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a boats and ships outboard tail shaft deflection and vibration on-line monitoring device for detect the deflection and the lateral vibration of boats and ships tail shaft (5), install in the tail end of tail shaft (5) screw (1) of boats and ships, tail shaft (5) are supported by tail shaft front bearing (7) and tail shaft rear bearing (4), all install on boats and ships outboard hull structure (3) tail shaft front bearing (7) and tail shaft rear bearing (4), its characterized in that, on-line monitoring device includes outboard tail shaft deflection and vibration integrated measuring apparatu (2), withstand voltage cable (6) and monitoring devices host computer (8), outboard tail shaft deflection and vibration integrated measuring apparatu (2) install on the tail end face of tail shaft rear bearing (4) through the bolt, withstand voltage watertight cable (6) one end is connected outboard tail shaft deflection and vibration integrated measuring apparatu (2) top's withstand voltage connects, and the other end is along outboard tail shaft structure routing inner wall, and advance behind the cabin through the pipe fitting with monitoring devices (8) the monitoring devices host computer (8) connect and monitor the host computer (8) and carry out the monitoring devices and the hull structure and the screen and the data that the inboard tail shaft is connected.
2. The device for on-line monitoring of the sinkage and vibration of the outboard tail shaft of the ship as claimed in claim 1, wherein: outboard tail shaft sinks and is equipped with 5 integral type eddy current displacement sensors with vibration integrated measuring apparatu (2) inside, is respectively: the device comprises an integrated eddy current displacement sensor 1# (9), an integrated eddy current displacement sensor 2# (10), an integrated eddy current displacement sensor 3# (11), an integrated eddy current displacement sensor 4# (12) and an integrated eddy current displacement sensor 5# (13).
3. The device for monitoring the sinking and vibration of the outboard tail shaft of the ship in claim 2, which is characterized in that: and the integral eddy current displacement sensor 3# (11) is arranged at the inner top of the tester and is superposed with the central line of the inner hole of the rear bearing (4) of the tail shaft in the vertical direction.
4. The device for monitoring the sinking and vibration of the outboard tail shaft of the ship in claim 3, which is characterized in that: the integrated eddy current displacement sensor 2# (10) and the integrated eddy current displacement sensor 4# (12) are respectively and symmetrically arranged on the left side and the right side of the integrated eddy current displacement sensor 3# (11), and an included angle alpha between the integrated eddy current displacement sensor and the vertical direction central line is set within a range of 10-15 degrees.
5. The device for monitoring the sinking and vibration of the outboard tail shaft of the ship in claim 3, which is characterized in that: integral type eddy current displacement sensor 1# (9) and integral type eddy current displacement sensor 5# (13) arrange in the tester first half, and relative vertical direction central line symmetrical arrangement, integral type eddy current displacement sensor 1# (9) and integral type eddy current displacement sensor 5# (13) with the contained angle beta of vertical direction central line sets for 45.
6. The device for monitoring the sinking and vibration of the outboard tail shaft of the ship in claim 2, which is characterized in that: outboard tail shaft sinks and wholly adopts the annular flange structure with vibration integrated measurement appearance (2), including end cover (14), gland (15) and measuring apparatu casing, end cover (14) and gland (15) are all reserved 5 integral type eddy current displacement sensor's installation hole site, cable lead wire groove and fastener hole site, measuring apparatu casing top is equipped with withstand voltage watertight joint (16), 5 integral type eddy current displacement sensor's signal line gather extremely withstand voltage watertight joint (16) department and with withstand voltage watertight cable (6) are connected.
7. The device for on-line monitoring of the sinkage and vibration of the outboard tail shaft of the ship according to claim 6, wherein: the end cover (14) and the gland (15) are made of seawater-resistant engineering plastics and are integrally cast and molded through a mold.
8. The device for monitoring the sinking and vibration of the outboard tail shaft of the ship in claim 1, which is characterized in that: the monitoring device host (8) comprises a box body (17), a monitoring module (18), a state panel (19), an alarm indicator lamp (20), a switch knob (21) and a nameplate (22);
the box body (17) is made of magnesium-aluminum alloy, ventilation and heat dissipation holes are formed in the left side and the right side, wiring holes are formed in the bottom of the box body, and the back of the box body is elastically installed in a vibration isolation mode through a shock absorber;
the monitoring module (18) is reversely mounted on a back plate of the box body (17) by adopting a plug-in structure, and the monitoring module (18) is integrated with a power supply module, a communication management module and a signal acquisition conditioning module;
a display screen and a status indicator lamp are integrated on the status panel (19);
the alarm indicator lamp (20), the switch knob (21) and the nameplate (22) are arranged on the front panel of the box body (17).
9. The device for monitoring the sinkage and vibration of the outboard tail shaft of the ship in claim 8, wherein: the monitoring device host (8) is specifically installed in a ship cabin by adopting a wall-mounted mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211126654.XA CN115593588A (en) | 2022-09-16 | 2022-09-16 | Ship outboard tail shaft sinking amount and vibration online monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211126654.XA CN115593588A (en) | 2022-09-16 | 2022-09-16 | Ship outboard tail shaft sinking amount and vibration online monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN115593588A true CN115593588A (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211126654.XA Pending CN115593588A (en) | 2022-09-16 | 2022-09-16 | Ship outboard tail shaft sinking amount and vibration online monitoring device |
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