CN211668401U - Combined measuring device for ship model dimension inspection - Google Patents
Combined measuring device for ship model dimension inspection Download PDFInfo
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- CN211668401U CN211668401U CN202020792814.4U CN202020792814U CN211668401U CN 211668401 U CN211668401 U CN 211668401U CN 202020792814 U CN202020792814 U CN 202020792814U CN 211668401 U CN211668401 U CN 211668401U
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Abstract
The utility model provides a combination measuring device of ship model size inspection, including the measuring shaft that is used for the afterbody measuring device of ship model stern measuring, is used for bow measuring device, the solid of revolution of ship model bow measuring and is used for the ship width measuring device of ship model's ship width measuring. The tail measuring device comprises a tail base, a tail vertical rod piece, a tail horizontal rod piece and a vertical graduated scale with scales, wherein the tail horizontal rod piece is linearly and slidably connected to the tail vertical rod piece, and the vertical graduated scale is linearly and slidably connected to the tail horizontal rod piece; the head measuring device comprises a head base, a head horizontal rod piece and a head vertical rod piece with scales, wherein the head horizontal rod piece is linearly connected to the head vertical rod piece in a sliding mode. The utility model discloses can be quick, high accuracy measurement ship model primary dimension, have that measuring step is simple and convenient, maneuverability is strong, measure weak point consuming time's advantage.
Description
Technical Field
The utility model relates to an infrared laser range finder especially relates to a combination measuring device of ship model size inspection.
Background
In the process of a ship model water tank test, a ship model needs to be processed, the processing precision of the ship model has important influence on the test result, particularly, the correlation between the parameter calculation and the measurement result of a certain series of the parameters and the size of the ship model is extremely large, and mechanisms such as ITTC (international ship model towing water tank conference) have clear requirements on the processing precision of the ship model, so the processing precision of the ship model is an important premise of the progress of the water tank test, the size inspection for processing the ship model is an essential step in the preparation process of the ship model test, and the processing precision is one of important contents of Quality Control (QC).
The existing ship model size measuring and checking device mainly comprises:
1) laser scanning: the laser scanning method is that the ship model which is statically placed is subjected to laser scanning through special scanning equipment, so that three-dimensional coordinates of the ship model are obtained, the three-dimensional coordinates are converted into a three-dimensional graph through corresponding software, and then the three-dimensional graph and the three-dimensional graph processed by the ship model are measured and compared. According to the actual operation record, measuring a ship model with the length of about 7m takes about 3.5 hours; the cost of measuring once is about 0.8 ten thousand yuan RMB; for the local position with large change of the curved surface, multiple measurements are needed; the measuring result is influenced by the measuring environment (such as the illumination intensity and the ship model placing mode) to a certain extent.
2) Physical measurement: the existing physical measurement method mainly measures some directly measurable short-distance sizes through some physical distance measurement tools (such as a long ruler and a steel ruler). When the distance to be measured is too long, the random error of the result of the physical measurement is large, and the influence of the operator is large. And the suspension distance and the distance including the curved surface can not be accurately measured.
Therefore, the length, width and height of the tail shaft of the ship model are important dimensions of the ship model, and the conventional technology cannot realize dimension checking and measuring quickly and accurately. To the defect that prior art exists, provide the utility model discloses.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the structural shortcoming of prior art, provide a combination measuring device of ship model size inspection, can be quick, high accuracy measurement ship model primary dimension, have that measuring step is simple and convenient, maneuverability is strong, measure weak point consuming time. .
In order to achieve the above object, the embodiment of the present invention provides a combined measuring device for ship model dimension inspection, which is realized by the following technical scheme:
a combination measuring device for dimensional inspection of a ship model, comprising:
the tail measuring device for measuring the stern of the ship model comprises a tail base, a tail vertical rod piece, a tail horizontal rod piece and a vertical graduated scale with scales; the tail vertical rod piece is arranged at the first side edge of the top surface of the tail base, and the tail horizontal rod piece is linearly and slidably connected to the tail vertical rod piece and is vertical to the tail vertical rod piece; the vertical graduated scale is linearly and slidably connected to the tail horizontal rod piece and is vertical to the tail vertical rod piece; the joint surface of the tail vertical rod piece and the tail horizontal rod piece is positioned on the same plane with the first side edge;
the bow measuring device for the ship model bow measurement comprises a bow base, a bow horizontal rod piece and a bow vertical rod piece with scales; a groove matched with the shape of the ship model bow is formed on the first side surface of the bow base; the header vertical rod piece is vertically arranged at the top of the header base; the header horizontal rod piece is linearly and slidably connected to the header vertical rod piece and is vertical relative to the header vertical rod piece; the extending direction of the head horizontal rod piece from the head vertical rod piece is the same as the orientation of the first side face;
the measuring shaft is composed of a rotary body, a first cylinder, a second cylinder and a third cylinder which are coaxially and sequentially connected from one end of the rotary body; the diameter of the lower bottom of the circular truncated cone body is the same as that of the first cylinder, and the diameters of the first cylinder, the second cylinder and the third cylinder are reduced in sequence;
a ship width measuring device for measuring the ship width of a ship model comprises at least one right-angle frame; the right-angle frame is composed of a ship width base and a ship width vertical rod piece vertically arranged on the ship width base.
One side surface of the tail vertical rod piece and one side surface of the head vertical rod piece are provided with grooves along the length direction, one end surfaces of the tail horizontal rod piece and one end surfaces of the head horizontal rod piece are provided with sliding blocks, and the sliding blocks are correspondingly embedded into the grooves, so that the tail vertical rod piece, the tail horizontal rod piece, the head horizontal rod piece and the head vertical rod piece form linear sliding connection.
The groove is a dovetail groove; the shape of the sliding block is matched with that of the dovetail groove.
The vertical graduated scale is sleeved and connected on the tail horizontal rod piece through a sliding block at the end part, so that the vertical graduated scale and the tail horizontal rod piece form linear sliding connection.
The diameter of the first cylinder is 2.6cm, and the diameter of the third cylinder is 2.0 cm.
Compared with the prior art, the beneficial effects of the utility model are that:
1) by using the combined measuring device, the relative reference coordinates are provided, and the error between the measured value and the theoretical value can be further checked;
2) the length of the ship model can be measured in a medium and long distance;
3) the suspended coordinate of the height of the shaft can be measured;
4) the measuring device is simple to process and convenient to improve in the later period;
5) the measuring steps are simple and convenient, and the operability is strong;
6) the measurement takes a short time, and the length, width and shaft height of a ship model of about 7m are measured, and the measurement takes about 10 minutes.
Drawings
The above features and advantages of the present invention will become more apparent and readily appreciated from the following description of the exemplary embodiments thereof taken in conjunction with the accompanying drawings.
Fig. 1 is a structural diagram of a tail measuring device in embodiment 1 of the present invention;
fig. 2 is a structural diagram of a header measurement device according to embodiment 1 of the present invention;
FIG. 3 is a structural diagram of a measuring shaft according to embodiment 1 of the present invention;
fig. 4 is a structural diagram of a measuring state of the ship width measuring device in embodiment 1 of the present invention;
fig. 5 is a structural diagram of a measurement state of the ship width measuring device in embodiment 2 of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings so as to facilitate understanding by those skilled in the art:
example 1:
to the deficiency of the prior art, the design concept of the utility model is as follows: firstly, physical measurement is still a fast and intuitive measurement method, and measurement can be performed by establishing a physical reference system. Secondly, aiming at the measurement of the suspended distance and the long distance, after the physical reference system is established through the preorder step, the measurement can be carried out by means of a high-precision laser distance meter. Finally, aiming at the measurement of the height of the ship model shaft, the center point of the shaft can be determined by processing the shaft structure with the scale interface due to the suspension distance, and the distance from the center point to the base line can be further measured.
In view of the above concept, the applicant of this embodiment 1 has designed a combined measuring device for the dimensions of the typical ship model (container ship, oil tanker, bulk carrier, engineering ship) such as length, width, and height of the ship model.
Referring to fig. 1-4, the combined measuring device is mainly composed of four parts: 1) tail measuring device, 2) head measuring device, 3) tail measuring shaft, 4) beam measuring device. In use, the combination measuring device also needs to be fitted with a high precision laser rangefinder.
Tail measuring device 1
The tail measuring device 1 is used for measuring the stern of a ship model. The tail measuring device 1 comprises a tail base 11, a tail vertical rod 12, a tail horizontal rod 13 and a vertical graduated scale 14 with scales.
The tail base 11 is a cuboid with dimensions of 30cm by 20cm by 5 cm.
The tail vertical rod 12 is vertically arranged on the top surface of the tail base 11, and the size of the tail vertical rod is 5cm by 70 cm.
The tail horizontal bars 13 measure 3cm by 100 cm. The tail horizontal rod 13 is linearly and slidably connected to the tail vertical rod 12 and is vertical to the tail vertical rod 12. In a specific embodiment, a groove 121 is formed in one side surface of the tail vertical rod 12 along the length direction, the groove 121 is a dovetail groove, a slider is fixedly connected to one end surface of the tail horizontal rod 13, the slider is matched with the dovetail groove 121 in shape and is correspondingly embedded into the groove 121, so that the tail vertical rod 12 and the tail horizontal rod 13 form a linear sliding connection.
The vertical graduated scale 14 is linearly and slidably connected to the tail horizontal rod 13, is vertical to the tail vertical rod 13, and is used for measuring the height of the tail shaft. In a specific embodiment, the upper and lower sides of the rear horizontal rod 13 are provided with grooves 131, the end of the vertical scale 14 is provided with a slide block 141, the slide block 141 is provided with a groove, the opening of the groove is provided with two flanges, and the flanges 141 are correspondingly embedded into the upper and lower grooves 131, so that the vertical scale 14 and the rear horizontal rod 13 form a linear sliding connection.
It is noted that, based on the usual stern structure, the aft vertical bar 12 is established at a side edge of the top surface of the aft base 11, which side edge is referred to herein as the first side edge for simplicity of description. Thus, the side of the rear vertical rod 12 provided with the recess 121 and the first side edge are in the same plane, and similarly, the interface between the rear vertical rod 12 and the rear horizontal rod 13 and the first side edge are in the same plane.
Header measuring device 2
The bow measuring device 2 is used for measuring the bow of the ship model. The header measuring device 2 comprises a header base 21, a header horizontal bar 23 and a header vertical bar 22 with a scale.
The size of the head base 21 is 30cm x 20cm x 17cm, and a groove 211 matched with the shape of the head of the ship model is formed on the first side surface of the head base 21 so as to adapt to the head shapes of different ship models.
The head vertical rod 22 is vertically arranged on the top of the head base 21 and has the size of 5cm by 70 cm. The bow vertical bars 22 may be flush with the bow of the ship model (or typical features of a bulbous bow).
The header horizontal bars 23 have a size of 3cm by 50 cm. The head horizontal bar 23 is linearly slidably connected to the head vertical bar 22 and is vertical with respect to the head vertical bar. In a specific embodiment, a side surface of the head vertical rod 22 is provided with a groove 221 along the length direction, the groove 221 is a dovetail groove, one end surface of the head horizontal rod 23 is fixedly connected with a sliding block 231, and the shape of the sliding block 231 is matched with the shape of the dovetail groove 121 and is correspondingly embedded in the groove 221, so that the head vertical rod 22 and the head horizontal rod 23 form a linear sliding connection.
The extension direction of the head horizontal bar 23 from the head vertical bar 22 is the same as the orientation of the first side of the head base 21.
Measuring shaft 3
The measuring shaft 3 is in the shape of a rotor. From one end of the measuring shaft 3, the measuring shaft 3 is composed of a truncated cone 31, a first cylinder 32, a second cylinder 33 and a third cylinder 34 which are coaxially and sequentially connected. The cone 31 is marked with angle scales and a central dot, and the lower bottom of the cone 31 has the same diameter as the first cylinder 32. The first cylinder 32, the second cylinder 33 and the third cylinder 34 are successively reduced in diameter, wherein the first cylinder is 2.6cm in diameter and the third cylinder is 2.0cm in diameter.
Ship width measuring device
The ship width measuring device is used for measuring the ship width of the ship model. The ship width measuring device comprises two right-angle frames 4; the right-angle stand 4 is composed of a ship width base 41 and a ship width vertical rod 42 vertically arranged on the ship width base. The beam base 41 is 30cm by 20cm by 5cm and the beam vertical member 42 is 5cm by 70 cm.
With the above device structure, the measurement method of the combined measurement device in this embodiment 1 is as follows:
firstly, measuring the height of a ship model shaft:
the measurement is performed using the tail measuring device 1 and the measuring shaft 3. The vertical rod piece of the tail measuring device 1 is aligned with the tail of the ship model, and the measuring shaft 3 is arranged in the shaft hole of the ship model. . The horizontal rod piece of the tail measuring device 1 is placed on the base line of the bottom of the ship model in an up-and-down sliding mode, and the vertical graduated scale is aligned with the central point of the measuring shaft 3 through left-and-right movement, so that the height of the ship model shaft can be measured.
Secondly, measuring the length of the ship model:
the tail measuring device 1 and the head measuring device 2 are respectively placed at the corresponding positions of the head part and the tail part of the ship model, and the distance between the tail measuring device 1 and the head measuring device 2, namely the distance of the characteristic length of the ship model, is respectively measured by using a laser distance measuring instrument, wherein the distance comprises but is not limited to the distance between a bulbous bow and a tail sealing plate, the distance between a 20-station position and the tail sealing plate and the like.
Thirdly, measuring the width of the ship model:
the two right-angle frames 4 are respectively placed on two sides of the ship model in the width direction, and the distance between the two right-angle frames 4 is the width of the ship model.
The width of the ship model within 1m can be directly measured by a long ruler; for ship models with a width of more than 1m, the width can be measured by a laser range finder.
Example 2:
referring to fig. 5, in this embodiment 2, the ship width measuring device only has 1 right-angle stand 4, and when the ship width is measured, the tail measuring device 1 and the right-angle stand 4 are respectively placed on two sides of the ship model in the width direction, so that the distance between the tail measuring device 1 and the right-angle stand 4 is the ship model width. Therefore, a right-angle frame can be reduced, and the cost is saved.
The utility model has the advantages that:
1) by using the combined measuring device, the relative reference coordinates are provided, and the error between the measured value and the theoretical value can be further checked;
2) the length of the ship model can be measured in a medium and long distance;
3) the suspended coordinate of the height of the shaft can be measured;
4) the measuring device is simple to process and convenient to improve in the later period;
5) the measuring steps are simple and convenient, and the operability is strong;
6) the measurement takes a short time, and the length, width and shaft height of a ship model of about 7m are measured, and the measurement takes about 10 minutes.
The above embodiments are intended to illustrate the present invention and the embodiments in detail, but it can be understood by those skilled in the art that the above embodiments of the present invention are only one of the preferred embodiments of the present invention, and for space limitation, all embodiments can not be listed here one by one, and any implementation that can embody the technical solution of the present invention is within the protection scope of the present invention.
Claims (5)
1. A combination measuring device for dimensional inspection of a ship model, comprising:
the tail measuring device for measuring the stern of the ship model comprises a tail base, a tail vertical rod piece, a tail horizontal rod piece and a vertical graduated scale with scales; the tail vertical rod piece is arranged at the first side edge of the top surface of the tail base, and the tail horizontal rod piece is linearly and slidably connected to the tail vertical rod piece and is vertical to the tail vertical rod piece; the vertical graduated scale is linearly and slidably connected to the tail horizontal rod piece and is vertical to the tail vertical rod piece; the joint surface of the tail vertical rod piece and the tail horizontal rod piece is positioned on the same plane with the first side edge;
the bow measuring device for the ship model bow measurement comprises a bow base, a bow horizontal rod piece and a bow vertical rod piece with scales; a groove matched with the shape of the ship model bow is formed on the first side surface of the bow base; the header vertical rod piece is vertically arranged at the top of the header base; the header horizontal rod piece is linearly and slidably connected to the header vertical rod piece and is vertical relative to the header vertical rod piece; the extending direction of the head horizontal rod piece from the head vertical rod piece is the same as the orientation of the first side face;
the measuring shaft is composed of a rotary body, a first cylinder, a second cylinder and a third cylinder which are coaxially and sequentially connected from one end of the rotary body; the diameter of the lower bottom of the circular truncated cone body is the same as that of the first cylinder, and the diameters of the first cylinder, the second cylinder and the third cylinder are reduced in sequence;
a ship width measuring device for measuring the ship width of a ship model comprises at least one right-angle frame; the right-angle frame is composed of a ship width base and a ship width vertical rod piece vertically arranged on the ship width base.
2. The combination measuring device for ship model dimension inspection according to claim 1, wherein: one side surface of the tail vertical rod piece and one side surface of the head vertical rod piece are provided with grooves along the length direction, one end surfaces of the tail horizontal rod piece and one end surfaces of the head horizontal rod piece are provided with sliding blocks, and the sliding blocks are correspondingly embedded into the grooves, so that the tail vertical rod piece, the tail horizontal rod piece, the head horizontal rod piece and the head vertical rod piece form linear sliding connection.
3. The combination measuring device for ship model dimension inspection according to claim 2, wherein: the groove is a dovetail groove; the shape of the sliding block is matched with that of the dovetail groove.
4. The combination measuring device for ship model dimension inspection according to claim 3, wherein: the vertical graduated scale is sleeved and connected on the tail horizontal rod piece through a sliding block at the end part, so that the vertical graduated scale and the tail horizontal rod piece form linear sliding connection.
5. The combination measuring device for ship model dimension inspection according to claim 4, wherein: the diameter of the first cylinder is 2.6cm, and the diameter of the third cylinder is 2.0 cm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344820A (en) * | 2020-10-28 | 2021-02-09 | 上海外高桥造船有限公司 | Outfitting pipe fitting measuring caliper and caliper using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344820A (en) * | 2020-10-28 | 2021-02-09 | 上海外高桥造船有限公司 | Outfitting pipe fitting measuring caliper and caliper using method thereof |
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