CN111547200B - Ship inclination testing device - Google Patents
Ship inclination testing device Download PDFInfo
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- CN111547200B CN111547200B CN202010463784.7A CN202010463784A CN111547200B CN 111547200 B CN111547200 B CN 111547200B CN 202010463784 A CN202010463784 A CN 202010463784A CN 111547200 B CN111547200 B CN 111547200B
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- rigid
- testing device
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- laser
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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
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/14—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude for indicating inclination or duration of roll
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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
- B63B79/30—Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels
Abstract
The invention relates to the technical field of ship manufacturing, and discloses a ship inclination testing device. The ship inclination testing device comprises a ship inclination testing device, a first reflector, a laser emission source and a degree scale, wherein the supporting component comprises a supporting tip; the pendulum assembly comprises a rigid swinging rod and a pendulum positioned at one end of the rigid swinging rod, and the rigid swinging rod is supported at the supporting tip and can freely swing around the supporting tip; the first reflector is connected to the rigid oscillating bar and is parallel to the rigid oscillating bar, and a light reflecting surface of the first reflector is coplanar with the oscillating pivot of the rigid oscillating bar; the laser emission source is configured to emit laser light to the first reflecting mirror at a preset angle, and the laser light is reflected to the reading ruler through the first reflecting mirror. The ship inclination testing device provided by the invention is convenient to read, high in precision, simple in structure and low in cost.
Description
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a ship inclination testing device.
Background
The center of gravity of the ship needs to be measured in the manufacturing and heavy reconstruction processes of the ship, so that reference is provided for performances such as ship stability. When the ship inclination test is carried out, the pendulum bob is suspended on the ship body through the cycloid, a heavy object is conveyed from one position of a ship deck to the other position to incline the ship body, and the inclination angle of the ship can be obtained by measuring the swing amplitude of the pendulum bob.
In the prior art, when the swing amplitude of a pendulum bob is measured, a reading ruler is arranged below the pendulum bob, and data is directly read after the pendulum bob deflects, but the reading error is large and reading is inconvenient; in another mode, an acceleration sensor is arranged on the pendulum bob, a displacement sensor is arranged on the cycloid, and a computer acquires signals of the acceleration sensor and the displacement sensor and performs operation processing to obtain swing amplitude information of the pendulum bob.
Therefore, it is desirable to provide a ship inclination testing device to solve the above problems.
Disclosure of Invention
The invention aims to provide a ship inclination testing device which is convenient to read, high in precision, simple in structure and low in cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a ship inclination test device comprising:
a support assembly including a support tip;
the pendulum assembly comprises a rigid swinging rod and a pendulum positioned at one end of the rigid swinging rod, and the rigid swinging rod is supported at the supporting tip and can freely swing around the supporting tip;
the first reflector is connected to the rigid oscillating bar and is parallel to the rigid oscillating bar, and a reflecting surface of the first reflector is coplanar with the oscillating pivot of the rigid oscillating bar;
the laser reading device comprises a laser emission source and a reading ruler, wherein the laser emission source is configured to emit laser to the first reflecting mirror at a preset angle, and the laser is reflected to the reading ruler through the first reflecting mirror.
Optionally, the ship inclination testing device further comprises an intermediate reflector arranged in parallel with the reading ruler, and the laser is reflected onto the reading ruler by the intermediate reflector after being reflected by the first reflector.
Optionally, the incidence point of the laser emission source on the first reflective mirror is collinear with the swing pivot of the rigid swing link.
Optionally, the pendulum assembly further includes a hanging ring connected to the other end of the rigid swing rod, the hanging ring is sleeved on the support assembly so that the inner wall of the hanging ring is supported by the support tip, and the first reflective mirror is connected to one side of the hanging ring.
Optionally, the laser emitting source is rotatable about an axis parallel to the swing pivot of the rigid pendulum bar.
Optionally, the ship inclination testing device further comprises a cabinet body, and the supporting assembly, the laser emission source and the reading ruler are all connected to the inner wall of the cabinet body.
Optionally, the support assembly further includes a connecting portion, one end of the connecting portion is connected to the side wall of the cabinet body, the support tip is disposed at the other end of the connecting portion, and the tip of the support tip faces the upper side of the cabinet body.
Optionally, the support assembly further includes a magnetic attraction portion, and the magnetic attraction portion is connected to one end of the connecting portion and is attracted to the side wall of the cabinet body.
Optionally, a reading window is arranged on the cabinet body, and the reading ruler is located at the reading window.
Optionally, the reading ruler is made of a semi-transparent material.
The invention has the beneficial effects that:
according to the ship inclination testing device, when a ship is in a horizontal state, a laser emitting source emits laser to a first reflecting mirror at a preset angle, the laser is reflected to a reading ruler through the first reflecting mirror, and the position of the laser on the reading ruler is an original point, so that the ship is in the horizontal state; then, the ship is inclined by moving the position of a heavy object on the ship, in the process, under the action of gravity of a pendulum bob, a rigid swing rod can drive a first reflector to swing relative to a supporting tip end in the same amplitude as the inclination angle of the ship to keep a vertical state, namely, the deflection angle of the first reflector relative to other structures on the ship is consistent with the inclination angle of the ship, at the moment, a laser emitting source still emits laser to the first reflector at a preset angle, the position of the laser falling on a reading ruler after being reflected by the first reflector at the moment is deviated relative to the original point position, the deviation amount can be converted into the inclination angle of the ship by combining parameters such as the position relation of the reading ruler and the reflector, the angle emitted by the laser and the like, and the ship inclination test is realized. The ship inclination testing device can convert the inclination of the angle into the change of linear displacement, and simultaneously magnifies the change of the angle, and has the advantages of convenient reading, high precision, simple structure and low cost.
Drawings
FIG. 1 is a schematic structural diagram of a ship inclination testing device provided by an embodiment of the invention;
FIG. 2 is a sectional view A-A of FIG. 1;
fig. 3 is a schematic structural diagram of a support assembly of a ship inclination testing device according to an embodiment of the present invention.
In the figure:
1-a support assembly; 11-supporting the tip; 12-a connecting part; 13-a magnetic part;
2-a pendulum assembly; 21-a rigid pendulum bar; 22-a pendulum bob; 23-hanging ring;
3-a first mirror;
4-a laser emission source;
5-reading ruler;
6-intermediate reflector;
7-a cabinet body;
8-magnetic suction seat;
9-fixed axis.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the prior art, when the swing amplitude of a pendulum bob is measured, the reading scale at the bottom of the pendulum bob is directly read, the reading scale is not easy to read when the swing angle is small, and the reading error is large; and the pendulum bob is provided with the acceleration sensor, the cycloid is provided with the displacement sensor, and then calculation is carried out according to the data of the two sensors, so that the pendulum bob is complex in structure and high in cost. To solve the above problem, the present embodiment provides a ship inclination testing device, which can be used in the technical field of ship manufacturing, and also can be used in other fields requiring inclination testing.
As shown in fig. 1-3, the ship inclination testing device comprises a supporting assembly 1, a pendulum assembly 2, a first reflective mirror 3, a laser emitting source 4 and a reading ruler 5, wherein the supporting assembly 1 comprises a supporting tip 11, the pendulum assembly 2 comprises a rigid pendulum rod 21 and a pendulum 22 positioned at one end of the rigid pendulum rod 21, the rigid pendulum rod 21 is supported at the supporting tip 11 and can freely swing around the supporting tip 11, the first reflective mirror 3 is connected to the rigid pendulum rod 21 and is parallel to the rigid pendulum rod 21, a light reflecting surface of the first reflective mirror 3 is coplanar with a swing pivot of the rigid pendulum rod 21, the laser emitting source 4 is used for emitting laser to the first reflective mirror 3 at a preset angle, and the laser is reflected to the reading ruler 5 through the first reflective mirror 3.
According to the ship inclination testing device, when a ship is in a horizontal state, a laser emitting source 4 emits laser to a first reflecting mirror 3 at a preset angle, the laser is reflected to a reading ruler 5 through the first reflecting mirror 3, and the position of the laser on the reading ruler 5 is an original point at the moment, so that the ship is in the horizontal state; then, the ship is inclined by moving the position of a heavy object on the ship, in the process, under the action of the gravity of the pendulum bob 22, the rigid swing rod 21 can drive the first reflecting mirror 3 to swing relative to the supporting tip 11 by the same amplitude as the inclination angle of the ship so as to keep a vertical state, namely, the deflection angle of the first reflecting mirror 3 relative to other structures on the ship is consistent with the inclination angle of the ship, at the moment, the laser emission source 4 still emits laser to the first reflecting mirror 3 at a preset angle, the position of the laser falling on the reading ruler 5 after being reflected by the first reflecting mirror 3 at the moment is deviated relative to the original position, and the inclination angle of the ship can be converted by combining the deviation with the position relation between the reading ruler 5 and the first reflecting mirror 3, the laser emission angle and other parameters, so as to realize the ship inclination test. The ship inclination testing device can convert the inclination of the angle into the change of linear displacement, can amplify the change of the angle, and has the advantages of convenient reading, high precision, simple structure and low cost.
Preferably, the support tip 11 has a tapered structure so that it has a small contact surface with the pendulum assembly 2, thereby reducing the influence of the frictional force between the support tip 11 and the pendulum assembly 2 on the angle at which the pendulum assembly 2 swings.
Preferably, as shown in fig. 1, the ship inclination testing device further comprises a cabinet 7, and the supporting assembly 1, the laser emission source 4 and the reading ruler 5 are connected to the inner wall of the cabinet 7. The cabinet body 7 can be directly fixed on a deck of a ship for testing, so that the steps of installing the supporting component 1 and the reading ruler 5 on site are reduced, the operation is convenient, and the testing efficiency can be improved; on the other hand, cabinet body 7 can protect pendulum assembly 2 supporting on supporting component 1, avoids the influence of natural factors such as outside wind, rain to the test result, improves the precision of test.
Specifically, in this embodiment, the cabinet body 7 is a rectangular parallelepiped structure, the support assembly 1 is fixed on a side wall of the cabinet body 7, and the reading ruler 5 is fixed on a side wall adjacent to the side wall of the fixed support assembly 1. Preferably, the reading ruler 5 is a linear scale, and when the cabinet is horizontally placed, the reading ruler 5 is parallel to the rigid swing rod 21 and parallel to the side wall of the cabinet 7. Preferably, a magnetic attraction seat 8 is connected to one side of the reading ruler 5, and the magnetic attraction seat 8 is attracted to the side wall of the cabinet 7. The fixed mode of magnetic adsorption is convenient for install, and is convenient for guarantee the depth of parallelism of reading chi 5 and the lateral wall of the cabinet body 7, and then when guaranteeing that boats and ships are in the horizontality, the depth of parallelism of reading chi 5 and first reflector 3.
In order to facilitate an operator standing outside the cabinet body 7 to read the reading on the reading ruler 5, a reading window is arranged on the cabinet body 7, and the reading ruler 5 is positioned at the reading window. In this embodiment, the reading scale 5 is marked with a number indicating side facing the reading window. Further, the reading ruler 5 is made of a semi-transparent material. Therefore, when laser is incident on the reading scale 5 from the side of the reading scale 5 departing from the reading window, the position of the laser spot can be seen on the graduated side of the reading scale 5, namely the side facing the reading window, so that the data reading by an operator is further facilitated.
When the ship inclination angle is small, in order to facilitate reading, the offset on the reading ruler 5 needs to be amplified, and therefore the distance between the first reflective mirror 3 and the reading ruler 5 needs to be increased, but this may cause the cabinet 7 to have a correspondingly increased width, and in order to solve the above problem, as shown in fig. 1, the ship inclination testing device further includes an intermediate reflective mirror 6 arranged in parallel with the reading ruler 5, and the laser is reflected from the first reflective mirror 3 and then reflected onto the reading ruler 5 through the intermediate reflective mirror 6. The offset can be amplified once after each reflection, so that the laser is reflected back and forth by adding the middle reflector 6, the amplification of the offset can be ensured, and the size of the cabinet body 7 along the width direction can be properly reduced. Specifically, in this embodiment, two intermediate reflective mirrors 6 are provided, and are parallel to the side wall of the cabinet 7, and the reflective surfaces of the two intermediate reflective mirrors 6 are disposed opposite to each other. Preferably, the non-reflective surface of the middle reflector 6 is connected with a magnetic attraction seat 8, and the magnetic attraction seat 8 is attracted to the side wall of the cabinet 7. The fixed mode of magnetic adsorption is convenient for install, and is convenient for guarantee the depth of parallelism of middle reflector 6 and the lateral wall of the cabinet body 7. In other embodiments, the number of the intermediate reflective mirrors 6 is not limited, as long as the laser emitted by the first reflective mirror 3 can be incident on the reading ruler 5 after passing through the intermediate reflective mirrors 6.
Preferably, as shown in fig. 1, the incidence point of the laser emission source 4 on the first mirror 3 is on the swing pivot of the rigid swing link 21. The incidence point is collinear with the swing pivot of the rigid swing rod 21, so that the incidence position of the laser emitted by the laser emitting source 4 on the first reflecting mirror 3 can not be changed no matter the ship inclination angle is, the change of the angle can be simplified and converted into a calculation model of linear displacement on the reading ruler 5, and the manufacturing difficulty of the ship inclination testing device is further reduced.
Before the inclination test is started, the emission angle of the laser emission source 4 is needed to be corrected, so that when the ship is in a horizontal state, namely the cabinet is in a horizontal state, the emitted laser finally falls on the original point position on the reading ruler 5, and as shown in fig. 1 and 2, the laser emission source 4 can rotate around an axis parallel to the swing pivot of the rigid swing rod 21. Therefore, the angle of the laser emitted by the laser emitting source 4 can be adjusted by rotating the laser emitting source, so that when the ship is in a horizontal state, the laser finally falls on the origin position on the reading ruler 5. Specifically, in this embodiment, a fixed shaft 9 parallel to the swing pivot of the rigid swing link 21 is disposed on the side wall of the supporting assembly 1 connected to the cabinet 7, and the laser emission source 4 is sleeved on the fixed shaft 9 and can rotate relative to the axis of the fixed shaft 9. Of course, in other embodiments, the fixing position of the fixing shaft 9 is not limited, as long as it is ensured to be parallel to the swing pivot of the rigid swing link 21.
In order to support the rigid swing link 21 on the support tip 11, as shown in fig. 1, the pendulum assembly 2 further includes a hanging ring 23 connected to the other end of the rigid swing link 21, the hanging ring 23 is sleeved on the support assembly 1 so that the inner wall of the hanging ring 23 is supported on the support tip 11, and the first reflective mirror 3 is connected to one side of the hanging ring 23. When the boat is inclined, the suspension loop 23 swings with respect to the support tip 11, thereby bringing the rigid oscillating bar 21 and the pendulum 22 to swing together. In this embodiment, the cross-sectional area of the suspension ring is circular, so that the contact area between the pendulum assembly 2 and the support assembly 1 can be further reduced, and the influence of the frictional force between the suspension ring 23 and the support tip 11 on the swing of the pendulum assembly 2 can be further reduced.
In order to fix the supporting assembly 1 on the cabinet 7, as shown in fig. 2 and 3, the supporting assembly 1 further includes a connecting portion 12, one end of the connecting portion 12 is connected to a side wall of the cabinet 7, and the supporting tip 11 is disposed at the other end of the connecting portion 12 and its tip faces the upper side of the cabinet 7. The connection 12 enables the support tip 11 to be kept at a distance from the side wall of the cabinet 7, thereby avoiding the pendulum 22 from rubbing or colliding with the side wall of the cabinet 7. Further, as shown in fig. 3, the supporting assembly 1 further includes a magnetic portion 13, the magnetic portion 13 is connected to one end of the connecting portion 12 and is attached to the side wall of the cabinet 7, the magnetic connection mode is easy and convenient to operate, and the tip direction of the supporting tip 11 is convenient to adjust.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not to be construed as limitations of the embodiments of the present invention, but may be modified in various embodiments and applications by those skilled in the art according to the spirit of the present invention, and the content of the present description should not be construed as a limitation of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A ship inclination test device, comprising:
a support assembly (1) comprising a support tip (11);
the pendulum assembly (2) comprises a rigid pendulum rod (21) and a pendulum (22) positioned at one end of the rigid pendulum rod (21), wherein the rigid pendulum rod (21) is supported on the supporting tip (11) and can freely swing around the supporting tip (11);
the first reflecting mirror (3) is connected to the rigid swing rod (21) and is parallel to the rigid swing rod (21), and a reflecting surface of the first reflecting mirror (3) is coplanar with a swing pivot of the rigid swing rod (21);
the laser reading device comprises a laser emission source (4) and a reading ruler (5), wherein the laser emission source (4) is configured to emit laser to the first reflecting mirror (3) at a preset angle, and the laser is reflected to the reading ruler (5) through the first reflecting mirror (3);
the ship inclination testing device further comprises a middle reflecting mirror (6) arranged in parallel with the reading ruler (5), and the laser is reflected to the reading ruler (5) through the middle reflecting mirror (6) after being reflected by the first reflecting mirror (3).
2. Ship inclination testing device according to claim 1, characterized in that the point of incidence of the laser emission source (4) on the first mirror (3) is collinear with the pivot axis of the rigid pendulum bar (21).
3. The ship inclination testing device according to claim 1, wherein said pendulum assembly (2) further comprises a suspension loop (23) connected to the other end of said rigid swing link (21), said suspension loop (23) is sleeved on said support assembly (1) so that the inner wall of said suspension loop (23) is supported on said support tip (11), and said first reflective mirror (3) is connected to one side of said suspension loop (23).
4. Ship inclination testing device according to claim 1, wherein said laser emission source (4) is rotatable about an axis parallel to the oscillation pivot of said rigid oscillating bar (21).
5. Ship inclination testing device according to any of the claims 1-4, further comprising a cabinet (7), wherein said support assembly (1), said laser emission source (4) and said reading ruler (5) are connected to the inner wall of said cabinet (7).
6. Marine vessel inclination testing arrangement according to claim 5, characterised in that the support assembly (1) further comprises a connection portion (12), one end of the connection portion (12) being connected to a side wall of the tank (7), the support tip (11) being arranged at the other end of the connection portion (12) with its tip directed above the tank (7).
7. The ship inclination testing device according to claim 6, wherein the supporting assembly (1) further comprises a magnetic part (13), and the magnetic part (13) is connected to one end of the connecting part (12) and is attached to the side wall of the cabinet (7).
8. Ship inclination testing device according to claim 5, characterized in that a reading window is arranged on the cabinet (7), the reading ruler (5) being located at the reading window.
9. Ship inclination testing device according to claim 5, characterized in that the reading ruler (5) is made of a semi-transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463784.7A CN111547200B (en) | 2020-05-27 | 2020-05-27 | Ship inclination testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463784.7A CN111547200B (en) | 2020-05-27 | 2020-05-27 | Ship inclination testing device |
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| Publication Number | Publication Date |
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| CN111547200A CN111547200A (en) | 2020-08-18 |
| CN111547200B true CN111547200B (en) | 2021-08-10 |
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| CN202010463784.7A Active CN111547200B (en) | 2020-05-27 | 2020-05-27 | Ship inclination testing device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034432B (en) * | 2022-01-10 | 2022-03-22 | 招商局邮轮制造有限公司 | Movable inclination test device |
| CN115158601A (en) * | 2022-08-10 | 2022-10-11 | 中船黄埔文冲船舶有限公司 | Pendulum bob hanging point for ship inclination test |
| CN115597775B (en) * | 2022-12-13 | 2023-03-21 | 招商局金陵船舶(威海)有限公司 | Ship inclination test auxiliary device and method |
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| CN205396480U (en) * | 2016-01-22 | 2016-07-27 | 珠海市南屏均昌船厂 | Boats and ships inclination detection device and boats and ships |
| CN108238218A (en) * | 2018-02-05 | 2018-07-03 | 上海童玉电子科技有限公司 | Inclinometer peculiar to vessel and inclination method |
| CN207773404U (en) * | 2018-01-26 | 2018-08-28 | 蓝绍辉 | A kind of Novel marine dipmeter with rectangular coordinate system scale label panel |
| CN109018240A (en) * | 2018-08-29 | 2018-12-18 | 广船国际有限公司 | A kind of ship inclination measuring device and method |
| CN111174760A (en) * | 2020-02-20 | 2020-05-19 | 江南造船(集团)有限责任公司 | Ship inclination angle measuring device and measuring method thereof |
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2020
- 2020-05-27 CN CN202010463784.7A patent/CN111547200B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205396480U (en) * | 2016-01-22 | 2016-07-27 | 珠海市南屏均昌船厂 | Boats and ships inclination detection device and boats and ships |
| CN207773404U (en) * | 2018-01-26 | 2018-08-28 | 蓝绍辉 | A kind of Novel marine dipmeter with rectangular coordinate system scale label panel |
| CN108238218A (en) * | 2018-02-05 | 2018-07-03 | 上海童玉电子科技有限公司 | Inclinometer peculiar to vessel and inclination method |
| CN109018240A (en) * | 2018-08-29 | 2018-12-18 | 广船国际有限公司 | A kind of ship inclination measuring device and method |
| CN111174760A (en) * | 2020-02-20 | 2020-05-19 | 江南造船(集团)有限责任公司 | Ship inclination angle measuring device and measuring method thereof |
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