CN111765848A - Fixed ramp type value measuring tool for roll-on-roll-off ship - Google Patents
Fixed ramp type value measuring tool for roll-on-roll-off ship Download PDFInfo
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- CN111765848A CN111765848A CN202010744035.1A CN202010744035A CN111765848A CN 111765848 A CN111765848 A CN 111765848A CN 202010744035 A CN202010744035 A CN 202010744035A CN 111765848 A CN111765848 A CN 111765848A
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- roll
- rod
- vertical rod
- ship
- scales
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0608—Height gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a rolling and loading ship fixed ramp type value measuring tool.A vertical rod is provided with a sliding and fixing platform which can slide along the vertical rod and is locked, and the sliding and fixing platform is connected with one end of a horizontal rod with scales and enables the horizontal rod with the scales to be vertical to the vertical rod; the horizontal rod with the scales is provided with a cable pulley component which can slide along the horizontal rod and is locked, the lower part of the cable pulley component is fixedly provided with a laser range finder, and the emission direction of the laser range finder is parallel to the vertical rod; the other end of the horizontal rod with the scales is provided with a permanent magnet, and the permanent magnet is used for being fixedly attracted with the fixed ramp of the roll-on-roll-off ship. The invention can quickly measure the model value of the head end and the tail end of the ramp by a single person, realizes quick comparison with the standard model value, and effectively pre-judges whether the appointed vehicle type is collided or not when passing through the ramp, so as to provide local maintenance enhancement suggestions for the fixed ramp which can not meet the passing of the appointed vehicle, and avoid economic loss in the process of loading and unloading the vehicle by a shipowner.
Description
Technical Field
The invention relates to an auxiliary measuring device in a ship maintenance process, in particular to a measuring tool for a fixed ramp type value of a roll-on-roll-off ship.
Background
As a main vehicle, the manufacturing volume of the roll-on-roll-off vehicle is increasing as the market for the demand of the vehicle increases. The roll-on-roll-off ship fixed ramp is used as a necessary automobile loading and unloading structure in the roll-on-roll-off ship, and the model value of the roll-on-roll-off ship fixed ramp is a necessary parameter for ensuring the safety of automobile transportation by a shipman. The type value is a mathematical expression of a set of points distributed in a three-dimensional space for a product structure in the field of ships, and can clearly reflect the shape of the product in the three-dimensional space.
The model value of the fixed ramp of the ro-ro vessel is manufactured according to the designed model value during the production of the vessel. However, with the abundance of vehicle models of automobile manufacturers, some vehicle models have the characteristics of long axle and low chassis, so after the roll-on-roll-off ship is operated for a long time, the head and the tail ends of some fixed ramps can be locally deformed, and the seriously deformed areas can cause the situation that the chassis or front and rear bumpers are scratched when some vehicle models are loaded. In this case, there is often a need to re-measure the profile value of the fixed ramp of the ro-ro vessel. However, when the roll-on-roll-off ship floats on the water surface, the pitching angle exists on the horizontal plane, and the general measurement method is difficult to correct the pitching angle of the ship, so the measurement difficulty is higher, and the prior art has no better solution.
Disclosure of Invention
The invention aims to provide a measuring tool for the profile value of a fixed ramp of a roll-on-roll-off ship, which can quickly measure the profile value of the head end and the tail end of the ramp by a single person under the condition that the roll-on-roll-off ship has a longitudinal inclination angle, realizes quick comparison with a designed standard profile value, effectively prejudges whether a specified vehicle type can be collided and rubbed when passing through the ramp or not, and simultaneously provides local maintenance enhancement suggestions for the fixed ramp which cannot meet the passing requirements of the specified vehicle, thereby avoiding economic loss in the process of loading and unloading the vehicle by a shipowner; the measuring process can be carried out simultaneously with the loading and unloading of the vehicle, and the longitudinal inclination angle is changed constantly at the moment, so that the measuring can be carried out under the condition that the longitudinal inclination angle is changed dynamically, and the time of a ship wharf is reduced.
The invention specifically adopts the following technical scheme:
a rolling-loading vessel fixed ramp type value measuring tool comprises a vertical rod 6 with scales, wherein the lower end of the vertical rod 6 is vertically and fixedly connected with a base 7, and the base is flush with a deck surface at the bottom of a rolling-loading vessel fixed ramp; a sliding fixing platform 5 which can slide along the vertical rod 6 and is locked is arranged on the vertical rod 6, the sliding fixing platform 5 is connected with one end of the horizontal rod 2 with the scale, and the horizontal rod 2 with the scale is perpendicular to the vertical rod 6; the horizontal rod 2 with the scales is provided with a cable pulley component 3 which can slide along the horizontal rod and is locked, the lower part of the cable pulley component 3 is fixedly provided with a laser range finder 4, and the emission direction of the laser range finder 4 is parallel to the vertical rod 6; the other end of the horizontal rod 2 with the scales is provided with a permanent magnet 10, and the permanent magnet 10 is used for being fixedly attracted with the fixed ramp of the roll-on-roll-off ship.
Preferably, the sliding fixing platform 5 is composed of a plastic U-shaped groove, a plastic sliding sleeve and a plastic hand-screwed fixing screw, the vertical rod 6 is a hollow pipe made of an aluminum alloy material and provided with scales, and the height of the sliding fixing platform 5 can be freely adjusted.
Preferably, the horizontal rod 2 with scales is a folding rod and is formed by connecting a plurality of sections of foldable unit rods; the folding rod is an aluminum alloy hollow rod, a cable pulley assembly 3 is arranged on the folding rod and fixes a laser distance measuring instrument through a plastic hand-screwed screw, and the permanent magnet 10 fixes the end part of the horizontal rod 2 with the scales on the fixed ramp of the roll-on-roll-off ship.
A method for measuring the form factor of a fixed ramp of a ro-ro vessel adopts any one of the measuring tools for the form factor of the fixed ramp of the ro-ro vessel; and comprises the following steps:
s1, placing the base 7 on the deck, and enabling one side of the base to be parallel to the welding seam of the fixed ramp of the ro-ro ship on the deck;
s2, fixing the laser range finder 4 on the sliding fixed platform 5, enabling the laser emission of the laser range finder to be perpendicular to the vertical rod 6, and marking the light spot found by the laser range finder 4 on the fixed ramp of the roll-on-roll-off ship by using a marking pen;
s3, disassembling the laser range finder 4, placing one end of the horizontal rod 2 with the scale on the vertical rod fixing platform 5, fixing one end with the permanent magnet 10 on the mark point set in the step S2, and screwing the hand screw on the vertical rod 6 to fix the horizontal rod 2 with the scale; and recording the position reading of the sliding fixed platform 5 on the vertical rod 6;
s4, fixing the laser range finder 4 on the cable pulley assembly 9, sliding a set distance in the direction of the fixed ramp of the roll-on-roll-off ship, and reading and recording through the laser range finder 4; repeating step S4 several times;
and S5, acquiring the type value of the fixed ramp of the ro-ro ship relative to the deck surface through mathematical calculation under the two-dimensional coordinates established in the directions of the horizontal rod 2 and the vertical rod 6.
The invention has the beneficial effects that:
1) can be by single quick measurement ramp head and tail end type value under the condition that there is the pitch angle at the ro-ro ship, realize quick contrast with the standard type value of design, whether can take place to rub when effectively prejudging appointed motorcycle type through the ramp to in can't satisfy the current fixed ramp of appointed vehicle and propose local maintenance and strengthen the suggestion, avoid the economic loss of shipowner loading and unloading vehicle in-process.
2) The design is reasonable, reliable and ingenious, and the use is convenient;
3) the detachable assembly structure and the horizontal rod with the scales are foldable, so that the maintenance and the storage are convenient.
4) The measurement can be completed by a single person, the measurement efficiency is high, and the measurement can be carried out under the condition that the trim floating state of the ship loading and unloading goods is continuously changed.
Drawings
Fig. 1 is a schematic view showing a state in which the rolling vessel fixed ramp type value measuring tool of the present invention is installed at a position where a rolling vessel fixed ramp and a deck meet each other.
Fig. 2 is a front view of the vertical pole and its base.
Fig. 3 is a left side view of the vertical pole and its base.
Fig. 4 is a schematic structural diagram of a horizontal rod with scales, a cable pulley assembly on the horizontal rod, a permanent magnet and the like.
Fig. 5 is a measurement schematic diagram of the method for measuring the value of the fixed ramp type of the ro-ro vessel according to the invention.
In the figure, 1, a vertical rod with a base, 2, a horizontal rod with scales, 3, a cable pulley assembly, 4, a laser range finder, 5, a sliding fixed platform, 6, a vertical rod, 7, a vertical rod base and 10, a permanent magnet.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1-5, the rolling and shipping fixed ramp type value measuring tool comprises a vertical rod 6 with scales, wherein the lower end of the vertical rod 6 is vertically and fixedly connected with a base 7, and the base is flush with a deck surface at the bottom of the rolling and shipping fixed ramp; a sliding fixing platform 5 which can slide along the vertical rod 6 and is locked is arranged on the vertical rod 6, the sliding fixing platform 5 is connected with one end of the horizontal rod 2 with the scale, and the horizontal rod 2 with the scale is perpendicular to the vertical rod 6; the horizontal rod 2 with the scales is provided with a cable pulley component 3 which can slide along the horizontal rod and is locked, the lower part of the cable pulley component 3 is fixedly provided with a laser range finder 4, and the emission direction of the laser range finder 4 is parallel to the vertical rod 6; the other end of the horizontal rod 2 with the scales is provided with a permanent magnet 10, and the permanent magnet 10 is used for being fixedly attracted with the fixed ramp of the roll-on-roll-off ship.
In this embodiment, the sliding fixing platform 5 is composed of a plastic U-shaped groove, a plastic sliding sleeve and a plastic hand-screwed fixing screw, the vertical rod 6 is a hollow tube made of an aluminum alloy material and provided with scales, and the height of the sliding fixing platform 5 can be freely adjusted. This is not shown in detail in the figures.
In this embodiment, referring to fig. 4, the horizontal rod 2 with scale is a folding rod, which is formed by connecting a plurality of sections of foldable unit rods; the folding rod is an aluminum alloy hollow rod, a cable pulley assembly 3 is arranged on the folding rod and fixes a laser distance measuring instrument through a plastic hand-screwed screw, and the permanent magnet 10 fixes the end part of the horizontal rod 2 with the scales on the fixed ramp of the roll-on-roll-off ship.
The method for measuring the profile value of the fixed ramp of the ro-ro vessel adopts the measuring tool for the profile value of the fixed ramp of the ro-ro vessel; and comprises the following steps:
s1, placing the base 7 on the deck, and enabling one side of the base to be parallel to the welding seam of the fixed ramp of the ro-ro ship on the deck;
s2, fixing the laser range finder 4 on the sliding fixed platform 5, enabling the laser emission of the laser range finder to be perpendicular to the vertical rod 6, and marking the light spot found by the laser range finder 4 on the fixed ramp of the roll-on-roll-off ship by using a marking pen;
s3, disassembling the laser range finder 4, placing one end of the horizontal rod 2 with the scale on the vertical rod fixing platform 5, fixing one end with the permanent magnet 10 on the mark point set in the step S2, and screwing the hand screw on the vertical rod 6 to fix the horizontal rod 2 with the scale; and recording the position reading of the sliding fixed platform 5 on the vertical rod 6;
s4, fixing the laser range finder 4 on the cable pulley assembly 9, sliding a set distance in the direction of the fixed ramp of the roll-on-roll-off ship, and reading and recording through the laser range finder 4; repeating step S4 several times;
and S5, acquiring the type value of the fixed ramp of the ro-ro ship relative to the deck surface through mathematical calculation under the two-dimensional coordinates established in the directions of the horizontal rod 2 and the vertical rod 6.
For step S5, the following is illustrated: for example, in fig. 5, the height of the first measurement is H1, the distance of the second measurement is H2, the horizontal distance of the two measurement points is S (directly readable), and the data read by the two measurements has a ramp type value of X ═ 0 and Y ═ 0; X-S, Y-H1-H2, which are the configuration values of the ro-ro fixed ramp relative to the deck surface.
It should be emphasized that the above example only selects two measurement points, and the actual measurement can be performed once for each set interval, so as to obtain a more accurate profile through simulation calculation. Through the measurement or as a better scheme, accurate measurement can be carried out on the condition of local deformation of the ro-ro vessel ramp until a curve is obtained (the vessel trim can be corrected during measurement), and then rapid comparison with a standard model value is realized, and whether the specified vehicle type can be collided or not when passing through the ramp is effectively judged in advance, so that the specified vehicle cannot pass through. The measurement can be completed by a single person, the measurement efficiency is high, and the measurement can be carried out under the condition that the trim floating state of the ship loading and unloading goods is continuously changed.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a ro-ro ship fixed ramp type value measuring tool which characterized in that:
the device comprises a vertical rod (6) with scales, wherein the lower end of the vertical rod (6) is vertically and fixedly connected with a base (7), and the base is flush with a deck surface at the bottom of a fixed ramp of the ro-ro vessel;
a sliding fixing platform (5) which can slide along the vertical rod (6) and is locked is arranged on the vertical rod, the sliding fixing platform (5) is connected with one end of the horizontal rod (2) with the scale, and the horizontal rod (2) with the scale is perpendicular to the vertical rod (6);
the cable pulley assembly (3) capable of sliding and locking along the horizontal rod (2) with the scales is arranged on the horizontal rod, a laser range finder (4) is fixedly arranged at the lower part of the cable pulley assembly (3), and the emission direction of the laser range finder (4) is parallel to the vertical rod (6); the other end of the horizontal rod (2) with the scales is provided with a permanent magnet (10), and the permanent magnet (10) is used for being fixedly attracted with the fixed ramp of the roll-on-roll-off ship.
2. The ro-ro vessel fixed ramp type value measuring tool according to claim 1, wherein: the sliding fixing platform (5) is composed of a plastic U-shaped groove, a plastic sliding sleeve and a plastic hand-screwed fixing screw, the vertical rod (6) is a hollow pipe made of an aluminum alloy material, scales are arranged, and the height of the sliding fixing platform (5) can be freely adjusted.
3. The ro-ro vessel fixed ramp type value measuring tool according to claim 1, wherein: the horizontal rod (2) with the scales is a folding rod and is formed by connecting a plurality of sections of folding unit rods; the folding rod is an aluminum alloy hollow rod, a cable pulley assembly (3) is arranged on the folding rod and fixes a laser distance measuring instrument through a plastic hand-screwed screw, and the end part of the horizontal rod (2) with scales is fixed on a fixed ramp of the roll-on-roll-off ship through a permanent magnet (10).
4. A method for measuring the type value of a fixed ramp of a roll-on-roll-off ship is characterized by comprising the following steps:
using the ro-ro fixed-ramp value measuring tool according to any one of claims 1 to 3; and comprises the following steps:
s1, placing the base (7) on the deck, and enabling one side of the base to be parallel to a welding seam of the fixed ramp of the ro-ro ship on the deck;
s2, fixing the laser range finder (4) on the sliding fixed platform (5), enabling the laser emission of the laser range finder to be perpendicular to the vertical rod (6), and marking the light spot found by the laser range finder (4) on the fixed ramp of the roll-on-roll-off ship by using a marking pen;
s3, disassembling the laser range finder (4), placing one end of the horizontal rod (2) with the scales on the vertical rod fixing platform (5), fixing one end with the permanent magnet (10) on the mark point set in the step S2, and screwing a hand screw on the vertical rod (6) to fix the horizontal rod (2) with the scales; and recording the position reading of the sliding fixed platform (5) on the vertical rod (6);
s4, fixing the laser range finder (4) on the cable pulley assembly (9), sliding a set distance in the direction of the fixed ramp of the roll-on-roll-off ship, and reading and recording through the laser range finder (4); repeating step S4 several times;
and S5, acquiring the shape value of the fixed ramp of the ro-ro ship relative to the deck surface through mathematical calculation under the two-dimensional coordinate established by the directions of the horizontal rod (2) and the vertical rod (6) of the scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744035.1A CN111765848A (en) | 2020-07-29 | 2020-07-29 | Fixed ramp type value measuring tool for roll-on-roll-off ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744035.1A CN111765848A (en) | 2020-07-29 | 2020-07-29 | Fixed ramp type value measuring tool for roll-on-roll-off ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111765848A true CN111765848A (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010744035.1A Pending CN111765848A (en) | 2020-07-29 | 2020-07-29 | Fixed ramp type value measuring tool for roll-on-roll-off ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111765848A (en) |
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2020
- 2020-07-29 CN CN202010744035.1A patent/CN111765848A/en active Pending
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