CN215622588U - Pendulum bob reading device in ship inclination test - Google Patents
Pendulum bob reading device in ship inclination test Download PDFInfo
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- CN215622588U CN215622588U CN202022436939.6U CN202022436939U CN215622588U CN 215622588 U CN215622588 U CN 215622588U CN 202022436939 U CN202022436939 U CN 202022436939U CN 215622588 U CN215622588 U CN 215622588U
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Abstract
The utility model discloses a pendulum bob reading device in a ship inclination test, which comprises a cycloid, a pendulum bob, a reading ruler and a groove, wherein a buffer solution is arranged in the groove, the reading ruler is fixedly connected to two ends of the groove, the reading ruler comprises a scale ruler and a long strip-shaped mirror, the side of the long strip-shaped mirror surface is at least fixedly provided with one scale ruler in parallel along a long edge, the top end of the cycloid is fixedly connected to a ship body, the bottom end of the cycloid is fixedly connected with the pendulum bob, and the pendulum bob is completely immersed in the buffer solution in the groove at the bottommost part of the cycloid. The pendulum bob type reading device has the advantages of being simple in structure, capable of greatly improving the accuracy of pendulum bob reading, capable of reading visually and conveniently when the pendulum bob line is overlapped with the pendulum bob line in the mirror surface, and capable of reducing reading deviation as much as possible.
Description
Technical Field
The utility model relates to the technical field of ships, in particular to a pendulum bob reading device in a ship inclination test.
Background
In a case of a new ship or a ship with a large weight change, a ship is usually subjected to a tilt test to confirm the longitudinal center of gravity position of the ship. During the ship inclination test, the specification requires at least one pendulum bob, and the reading of the pendulum bob during the left-right swinging is recorded so as to calculate the ship inclination angle. Usually, a swinging rope above the pendulum bob is fixed at the high position of a ship cargo hold, so that the pendulum bob can freely swing, and a ruler is generally fixed at the upper end of the groove. When reading, the line of sight needs to be perpendicular to the ruler and the reading is recorded when the pendulum is deflected to the maximum position. However, as the reading is recorded manually and the pendulum bob continuously swings during reading, the line of sight is difficult to be perpendicular to the ruler when the pendulum bob deviates from the maximum position for reading, and a certain deviation exists in each reading.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pendulum bob reading device in a ship inclination test.
The technical purpose of the utility model is realized by the following technical scheme:
the utility model provides a pendulum reading device in boats and ships inclination test, its characterized in that, reading device includes cycloid, pendulum, reading chi and recess, be provided with the buffer solution in the recess, reading chi fixed connection is in recess both ends, the reading chi includes scale and rectangular shape mirror, rectangular shape mirror face side is along the fixed scale that is provided with of long limit parallel at least, cycloid top fixed connection is in the boats and ships hull, cycloid bottom and pendulum fixed connection, the pendulum is in the complete submergence of cycloid bottommost department in the buffer solution in the recess.
Preferably, the two sides of the groove are connected with the reading ruler through a support, the support is integrally an L-shaped cylinder, limiting holes are formed in the two sides of the reading ruler, and the limiting holes are matched with the top of the support.
Preferably, the reading ruler is wrapped by a stainless steel shell, clearance grooves are formed between two ends of the strip-shaped mirror and the stainless steel shell, and the limiting holes are formed in the clearance grooves.
Preferably, the scales on the two sides are opposite in scale.
Preferably, the reading ruler is vertically and fixedly arranged on the groove, and the reading ruler faces the cycloid on one side of the mirror surface of the elongated mirror.
Preferably, the reading ruler is fixedly connected with a level gauge in the middle of the stainless steel shell.
Preferably, a fixing groove is formed in the joint of the bottom of the support and the groove, the bottom of the support is sleeved in the fixing groove, and a tightening bolt is fixedly arranged on the outer side of the fixing groove.
In conclusion, the utility model has the following beneficial effects: the pendulum bob type reading device is simple in structure, accuracy of pendulum bob reading can be greatly improved, reading can be visually and conveniently carried out when the pendulum bob lines are overlapped with the pendulum bob lines in the mirror surface, and reading deviation can be reduced as far as possible.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic front view of a reading ruler according to the present invention;
figure 3 is a side cross-sectional view of a reading ruler of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings, and the present embodiment is not to be construed as limiting the utility model.
As shown in fig. 1 to 3, the pendulum reading device in the ship inclination test comprises a cycloid 1, a pendulum 2, a reading ruler 3 and a groove 4, wherein a buffer solution 5 is arranged in the groove 4, the buffer solution is generally an oily substance and can buffer the swinging pendulum, supports 6 are arranged at two ends of the groove 4, each support 6 is an L-shaped cylinder, a fixing groove 7 is arranged at the joint of the bottom of each support 6 and the groove 4, the bottom of each support 6 is sleeved in the corresponding fixing groove 7, a tightening bolt 8 is fixedly arranged outside each fixing groove 7, and the heights of two sides of each support 6 can be adjusted through the tightening bolts 8, so that the height of the reading ruler 3 can be conveniently adjusted.
The utility model discloses a reading scale, including reading chi 3, limiting hole 9 and support 6 top are agreed with, reading chi 3 includes scale 10 and rectangular shape mirror 11, and rectangular shape mirror 11 mirror side is along long limit parallel fixed scale 10 that is provided with at least, exposes partial mirror surface between two scale 10, and the scale 10 scale of both sides is opposite. During measurement, the mirror surface is parallel to the cycloid, the upper scale 10 is used for reading when the pendulum bob 2 swings left and right, the mirror surface part exposed in the middle is used for observing the image of the cycloid 1, and the actual cycloid 1 needs to be overlapped with the image during reading so as to ensure that the reading is perpendicular to the scale surface.
The reading ruler 3 is wrapped by a stainless steel shell 12, a gap groove 13 is formed between the two ends of the elongated mirror 11 and the stainless steel shell 12, and the limiting hole 9 is formed in the gap groove 13.
The top end of the cycloid 1 is fixedly connected to a ship body, the bottom end of the cycloid 1 is fixedly connected with the pendulum bob 2, the reading ruler 3 is vertically and fixedly arranged on the groove 4, the reading ruler 3 faces the cycloid 1 on one side of the mirror surface of the elongated mirror 11, and the pendulum bob 2 is completely immersed in the buffer solution in the groove 4 at the bottommost part of the cycloid 1.
The reading ruler 3 is fixedly connected with a level meter 14 in the middle of the stainless steel shell 12, and the levelness of the reading ruler 3 is judged through the level meter 14, so that the reading ruler 3 is adjusted in advance and then placed in a ship for an inclination test.
The use method of the utility model comprises the following steps: after the ship tilts for a certain angle every time, buffer solution to be filled in the groove is basically stable, reading is started when the swing amplitude of the pendulum bob is also basically stable, the sight line is perpendicular to the scale during reading, the reading a of the scale at the cycloid position before tilting is recorded, and in order to ensure that the sight line is perpendicular to the scale during reading, the actual cycloid needs to be coincided with the cycloid image in the elongated mirror during observation. Firstly reading and recording the maximum value b of the pendulum to one side, then reading and recording the maximum value c of the pendulum to the other side, wherein the data on the two sides are a group, reading and recording a plurality of groups of data, then taking the average value d of the maximum value b and the maximum value c, and then obtaining the vertical distance h between the top end of the cycloid and the graduated scale, thereby subsequently calculating the ship inclination angle alpha, wherein the calculation formula is X (d-a) = tan alpha h, and finally obtaining the ship inclination angle alpha through calculation.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a pendulum reading device in boats and ships inclination test, its characterized in that, reading device includes cycloid, pendulum, reading chi and recess, be provided with the buffer solution in the recess, reading chi fixed connection is in recess both ends, the reading chi includes scale and rectangular shape mirror, rectangular shape mirror face side is along the fixed scale that is provided with of long limit parallel at least, cycloid top fixed connection is in the boats and ships hull, cycloid bottom and pendulum fixed connection, the pendulum is in the complete submergence of cycloid bottommost department in the buffer solution in the recess.
2. A pendulum reading device in ship inclination test according to claim 1, characterized in that: the two sides of the groove are connected with the reading ruler through a support, the support is integrally an L-shaped cylinder, limiting holes are formed in the two sides of the reading ruler, and the limiting holes are matched with the top of the support.
3. A pendulum reading device in ship inclination test according to claim 2, characterized in that: the reading ruler is characterized in that a stainless steel shell wraps the outside of the reading ruler, clearance grooves are formed between the two ends of the strip-shaped mirror and the stainless steel shell, and the limiting holes are formed in the clearance grooves.
4. A pendulum reading device in ship inclination test according to claim 1, characterized in that: the scales on the two sides of the graduated scale are opposite.
5. A pendulum reading device in ship inclination test according to claim 1, characterized in that: the reading ruler is vertically and fixedly arranged on the groove, and one side of the reading ruler, which is positioned on the mirror surface of the long-strip-shaped mirror, faces the cycloid.
6. A pendulum reading device in ship inclination test according to claim 1, characterized in that: the reading ruler is fixedly connected with a level meter in the middle of the stainless steel shell.
7. A pendulum reading device in ship inclination test according to claim 2, characterized in that: the support is characterized in that a fixing groove is formed in the joint of the bottom of the support and the groove, the bottom of the support is sleeved in the fixing groove, and a tightening bolt is fixedly arranged on the outer side of the fixing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022436939.6U CN215622588U (en) | 2020-10-28 | 2020-10-28 | Pendulum bob reading device in ship inclination test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022436939.6U CN215622588U (en) | 2020-10-28 | 2020-10-28 | Pendulum bob reading device in ship inclination test |
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| Publication Number | Publication Date |
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| CN215622588U true CN215622588U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022436939.6U Active CN215622588U (en) | 2020-10-28 | 2020-10-28 | Pendulum bob reading device in ship inclination test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195956A (en) * | 2022-07-06 | 2022-10-18 | 首钢京唐钢铁联合有限责任公司 | Ship loading balancing device |
-
2020
- 2020-10-28 CN CN202022436939.6U patent/CN215622588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195956A (en) * | 2022-07-06 | 2022-10-18 | 首钢京唐钢铁联合有限责任公司 | Ship loading balancing device |
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