CN206724868U - A kind of ocean platform pile leg roundness measurement instrument - Google Patents
A kind of ocean platform pile leg roundness measurement instrument Download PDFInfo
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- CN206724868U CN206724868U CN201720252753.0U CN201720252753U CN206724868U CN 206724868 U CN206724868 U CN 206724868U CN 201720252753 U CN201720252753 U CN 201720252753U CN 206724868 U CN206724868 U CN 206724868U
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- chi
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- measurement instrument
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Abstract
The utility model discloses a kind of ocean platform pile leg roundness measurement instrument, it is mainly made up of left and right chi, perpendicular chi and detection ruler, and coordinate the use of the first bindiny mechanism, the second bindiny mechanism and base, can to diameter more than 1000mm cylinder carry out roundness measurement, i.e., can realize circularity it is a diameter of up to 3 5m, even more big ship spud leg carry out roundness measurement.Compared with prior art, the roundness measurement tool construction is simple, installs and uses simplicity, and roundness measurement is fast accurate, practical, has filled up the blank of existing ocean platform pile leg roundness measurement instrument.Certainly, this roundness measurement instrument can also be applied to the roundness measurement work of the large cylinder of other field.
Description
Technical field
It the utility model is related to a kind of survey tool, and in particular to a kind of ocean platform pile leg roundness measurement instrument, belong to
Naval Architecture and Ocean Engineering manufacturing industry technical field.
Background technology
In many manufacturings and technical field, product is widely used made of large cylinder structure, such as ship
With the technical field such as ocean engineering, chemical industry, space flight, building.Particularly in multiple research fields such as mechanical engineering, the mechanics of materials
In, the circularity of the cylindrical structure workpiece of the large revolving bodies such as annulus, cylinder is measured using large-scale roundness measuring equipment.It is existing big
Type roundness measuring equipment is general mainly by big load high-precision air-floating main shaft, accurate leveling aligning workbench, granite table top, electric artificial flower hilllock
Rock column, high-precision inductance side head, precision rotation encoder, drive control electronic box, high-acruracy survey electronic box, air filtration are dried
System is formed, and combines the use of the special measurement analysis software based on Windows XP.Measurement of the instrument for circularity
Accurate data, easy to operate, intelligent height, but maximum effective diameter of its measurement is 1000mm, can not measure diameter and be more than
1000mm cylinder, measurement object are more limited to.
In shipping industry, diameter is more more than 1000mm cylindrical structure, such as spud leg.Spud leg is as ocean platform
On an one of important component, its circularity diameter up to 3-5m, it is even more big.To ensure that the spud leg produced reaches safe rule
Model requirement, after shipyard produces spud leg finished product according to the specification on spud leg design drawing, related work department is also needed to the stake
Leg finished product carries out roundness measurement work.Because being relatively large in diameter for spud leg, detection operational difficulties are larger.In the prior art, do not have temporarily
Special spud leg roundness measurement instrument, domestic major shipyard are usually to measure the straight of cylinder both ends open circle using wire
Footpath, although it is simple to operate, if because there is wire certain ductility and flexibility, wire not to be straightened, or measurement
There is situations such as deviation when reading data in staff, and larger deviation just occurs in obtained spud leg circularity data, significantly
Influence the accuracy of spud leg roundness measurement.
The content of the invention
For above-mentioned deficiency, technical problem to be solved in the utility model is to provide a kind of simple in construction, operation letter
Just and the accurate ocean platform pile leg roundness measurement instrument of measurement.
To achieve the above object, the utility model is achieved through the following technical solutions:
A kind of ocean platform pile leg roundness measurement instrument, including detection ruler, the first bindiny mechanism, the second bindiny mechanism and use
In it is determined that left chi, right chi and the perpendicular chi in the circularity center of circle of cylinder to be measured, left chi, right chi and perpendicular chi by the first bindiny mechanism two-by-two
It is mutually connected vertically, wherein, left chi is installed in same level with right chi, and the upper end of perpendicular chi is installed vertically on where left and right chi
At the center of straight line, the lower end of perpendicular chi is fixed on by base on the wall body of cylinder to be measured;The detection ruler is connected machine with second
One end of structure is installed on after being hinged on the vertical direction relative with perpendicular chi, and the other end of second bindiny mechanism and first connects
Connection mechanism connects;
The graduated scale identical length identified on the left chi, right chi and perpendicular chi is same, and the free end of the detection ruler is provided with
One trimming scale chi.
In such scheme, first bindiny mechanism can include E arms, the F arms being installed on same straight line, with E arms and F
The orthogonal G arms of arm, and the first hinged mechanism of T-shaped structure, the first end of the first hinged mechanism is connected with E arms,
Two ends are connected with F arms, the 3rd end is connected with G arms;Length identical scale is identified with E arms, F arms and G arms, and passes through fixation
Part is connected with left chi, right chi and perpendicular chi respectively.
In such scheme, second bindiny mechanism may include H arms and the second hinged mechanism, is identified with H arms and E arms, F
Arm and G arm lengths identical scales, one end of the second hinged mechanism and the first hinged mechanism are coupled, its other end and H arms
Lower end is connected, and the upper end of H arms is connected by fixture with detection ruler.
In such scheme, the left chi, right chi and perpendicular chi are mainly sequentially connected by end graduated scale and mid-scale chi
Connect composition, offer bolt hole on the both ends panel of the mid-scale chi, one end of end graduated scale offer bolt hole,
The other end is provided with a trimming scale chi as free end.
In such scheme, further, the trimming scale chi may include scale plate and regulating bolt, the regulating bolt
It is connected with scale plate, the scale plate is installed in the chute opened up on the graduated scale of end and entered under the control of regulating bolt
Line slip.
In such scheme, the range of the trimming scale chi can be ± 10mm.
In such scheme, the detection ruler can be sequentially connected to connect and formed by end graduated scale and mid-scale chi, described
Bolt hole is offered on the both ends panel of mid-scale chi, one end of graduated scale is provided with bolt hole, the bolt hole in end
It is relative with the trimming scale chi on free end.
In such scheme, the base includes the regulating part for being used to adjust the horizontal plane degree of base, and the base is length
Quadrangle box, the fastener for being used for fixed perpendicular chi, the rectangular box close to fastener one end are provided with the side external shell of box body
The top surface of body is horizontally installed with a base graduated scale.
In such scheme, the regulating part is that specifically can coordinate 2 with more than 2 trimming bolts, each trimming bolt
Nut uses, and one of nut is installed on cuboid tray interior, another nut as traveling nut, by adjusting the spiral shell
Mother adjusts the height of trimming bolt.
Above-mentioned ocean platform pile leg roundness measurement instrument, in addition to for detecting the vertical check of perpendicular chi installation perpendicularity
Chi, the vertical check chi include finer wire and plummet, and the upper end of finer wire is connected in the first bindiny mechanism, its lower end and lead
Pendant connection, the plummet is inverted conical body.
The design principle of this structure roundness measurement instrument:It is that the length of the hypotenuse based on isosceles right triangle is equal to circumscribed circle
Diameter D, a height of circumradius R of hypotenuse, the circumscribed circle center of circle is determined, radius R rotates around the center of circle, if the cylinder is standard
Circle, then distances of the radius R between rotary course overlaps or both with the inwall of cylinder is in error range, otherwise is not
Circle.Install to obtain diameter of a circle D, redesign and left and right chi equal length by designing the left and right chi same level of equal length
Perpendicular chi, and perpendicular chi is vertical two-by-two with left and right chi, so that it is determined that the center of circle of cylinder to be detected;Then, the detection of design is passed through
Chi is articulated with the top of perpendicular chi, and rotation detection ruler simultaneously adjusts the trimming scale chi on detection ruler free end, by detection ruler and micro-
The numerical value that graduated scale is formed is adjusted to judge whether the circularity of cylinder to be detected is qualified.
The beneficial effects of the utility model are:
The ocean platform pile leg roundness measurement instrument of this structure is mainly made up of left and right chi, perpendicular chi and detection ruler, and is coordinated
The use of first bindiny mechanism, the second bindiny mechanism and base, roundness measurement can be carried out to cylinder of the diameter more than 1000mm,
It can realize that circularity is a diameter of and carry out roundness measurement up to 3-5m, even more big ship spud leg.The roundness measurement tool construction
Simply, simplicity is installed and used, and roundness measurement is fast accurate, it is practical, fill up existing ocean platform pile leg roundness measurement
The blank of instrument.Certainly, this roundness measurement instrument can also be applied to the roundness measurement work of the large cylinder of other field.
Brief description of the drawings
Fig. 1 is a kind of mounting structure schematic diagram when this ocean platform pile leg roundness measurement instrument measures.
Fig. 2 is the plane of structure A-A cross section structure diagrams in Fig. 1.
Fig. 3 is a kind of structural representation of the end graduated scale.
Fig. 4 is a kind of structural representation of the trimming scale chi.
Fig. 5 is the structural representation of the mid-scale chi.
Fig. 6 is a kind of described chi A structural representation.
Fig. 7 is a kind of described chi B structural representation.
Fig. 8 is a kind of structural representation of the base.
Fig. 9 is Fig. 8 side structure schematic view.
Overlooking the structure diagram when Figure 10 is the floor installation.
Figure 11 is the structural representation of the described first hinged mechanism.
Figure 12 is the structural representation of the described second hinged mechanism.
Figure 13 is side structure schematic diagram when the first hinged mechanism is installed with the second hinged mechanism.
In figure marked as:1st, left chi, 2, right chi, 3, perpendicular chi, 4, base, 4-1, housing, 4-2, trimming bolt, 4-3, base
Graduated scale, 5, detection ruler, 6, vertical check chi, the 7, first hinged mechanism, 8, end graduated scale, 9, trimming scale chi, 9-1, tune
Save bolt, 9-2, scale plate, 10, bolt hole, 11, mid-scale chi, 12, E arms, 13, F arms, 14, G arms, 15, axis hole, 16, H
Arm, the 17, second hinged mechanism, 18, bearing, 19, circular shaft, the 20, first bindiny mechanism, the 21, second bindiny mechanism, 22, spud leg circle
Barrel, 23, horizon rule.
Embodiment
As shown in Fig. 2 a kind of ocean platform pile leg roundness measurement instrument, including detection ruler 5, the first bindiny mechanism 20,
Two bindiny mechanisms 21 and left chi 1, right chi 2 and the perpendicular chi 3 in the circularity center of circle for determining cylinder to be measured, left chi 1, right chi 2 and perpendicular
Chi 3 is mutually connected vertically two-by-two by the first bindiny mechanism 20.Wherein, left chi 1 is installed in same level with right chi 2, erects chi 3
Upper end be installed vertically at the center of straight line where left and right chi (1,2), circle to be measured is fixed in the lower end of perpendicular chi 3 by base 4
On the wall body of cylinder.The detection ruler 5 is installed on the vertical side relative with perpendicular chi 3 after being hinged with one end of the second bindiny mechanism 21
Upwards, the other end of second bindiny mechanism 21 is connected with the first bindiny mechanism 20.
As shown in fig. 6, the first bindiny mechanism 20 includes E arms 12, the F arms 13 being installed on same straight line, with E arms 12 and F
The mutual vertical G arms 14 of arm phase 13, and the first hinged mechanism 7 of T-shaped structure.The first end of first hinged mechanism 7 and E arms 12
Connection, the second end is connected with F arms 13, the 3rd end is connected with G arms 14, and it is identical to be identified with length on E arms 12, F arms 13 and G arms 14
Scale, and be connected respectively with left chi 1, right chi 2 and perpendicular chi 3 by fixture.In the present embodiment, E arms 12, F arms 13 and G arms
Scale range on 14 is 200mm, naturally it is also possible to selects other ranges according to the radius R of cylinder to be detected size.
Bolt hole 10, E arms 12 and left chi 1, F arms 13 and right chi 2, G arms 14 are offered on the end of E arms 12, F arms 13 and G arms 14
Connection with perpendicular chi 3 is installed by the matched screw used of bolt hole 10, nut.Used screw, nut
As described fixture.
As shown in fig. 7, second bindiny mechanism 21 includes 16 and second hinged mechanism 17 of H arms, be identified with H arms 16 with
E arms 12, F arms 13 and the length identical scale of G arms 14, i.e. scale range in the present embodiment on H arms 16 is 200mm, certainly
Other ranges can be selected according to the radius R of cylinder to be detected size.One end of second hinged mechanism 17 and first hinged
Mechanism 7 is coupled, its other end is connected with the lower end of H arms 16, and the upper end of H arms 16 is connected by fixture with detection ruler 5.
As shown in figure 11, the first hinged mechanism 7 is the connection workpiece of T-shaped structure, and axle is equipped with the hollow cylinder respectively held
Hold 18.As shown in figure 12, the second hinged mechanism 17 is a hollow round bar, is internally provided with bearing 18.As shown in figure 13, first
An axis hole 15 is offered in hinged 7 and second hinged mechanism 17 of mechanism, first, second hinged mechanism (7,17) passes through circular shaft 19
Axle is carried out with the bearing 18 of setting to connect.The roundness measurement instrument, in addition to for detecting the vertical inspection of the perpendicular installation of chi 3 perpendicularity
Chi 6 is tested, the vertical check chi 6 includes finer wire and plummet, and the upper end of finer wire is connected in the first bindiny mechanism 20, under it
End is connected with plummet, and the plummet is inverted conical body.
According to round characteristic, the graduated scale identical length identified on the left chi 1, right chi 2 and perpendicular chi 3 is same.The present embodiment
In, left chi 1, right chi 2 and the perpendicular chi 3 mainly are sequentially connected to connect by end graduated scale and mid-scale chi to be formed.Such as Fig. 3 institutes
Show, one end of end graduated scale 8 offers bolt hole 10, the other end is provided with a trimming scale chi 9 as free end.The present embodiment
In, the range of the end graduated scale 8 is 300mm, naturally it is also possible to is selected according to the radius R of cylinder to be detected size
Other ranges.As shown in figure 5, offering bolt hole 10 on the both ends panel of the mid-scale chi 11, mid-scale chi is made
11 range is L, and L length can be selected according to the radius R of spud leg cylinder to be detected size, L=R-200mm-
300mm=L-500mm, such as when the radius of spud leg cylinder to be detected is 3m, then the range L=3m- of mid-scale chi 11
500mm=2500mm.Certainly, it is middle when the scale of end graduated scale 8 and E arms 12, F arms 13, G arms 14, H arms 16 changes
The range L of graduated scale 11 also accordingly changes.
As shown in figure 4, the trimming scale chi 9 include scale plate 9-2 and regulating bolt 9-1, the regulating bolt 9-1 with
Scale plate 9-2 connections, the scale plate 9-2 are installed in the chute opened up on end graduated scale 8 and regulating bolt 9-1's
Enter line slip under control.In the present embodiment, the range of the trimming scale chi 9 is specially -10mm-10mm.Wherein, erect on chi 3
Trimming scale chi 9 when installing and using, can be without setting, because the length of the length+G arms 14 of perpendicular chi 3=spud leg to be measured circle
The radius R of cylinder, and be fixed on as standard reference point on base 4.And the purpose of trimming scale chi 9 is set on left and right chi (1,2)
It is:In the case that the identical length of left chi 1, right chi 2, perpendicular chi 3 is same, then the left right chi 2+F arms 13 of chi 1+E arms 12=are in theory
On be equal to the radius R of spud leg cylinder to be measured, but the spud leg circularity radius R of cylindrical structure that actual shipyard is produced is bigger than normal or inclined
It is small, it need to be adjusted by trimming scale chi 9.
The detection ruler 5 is sequentially connected to connect and formed by end graduated scale 8 and mid-scale chi 11, and detection ruler 5 from
One trimming scale chi 9 is provided with by end.Bolt hole 10 is offered on the both ends panel of the mid-scale chi 11, is carved in end
One end of degree chi 8 is provided with bolt hole 10, and the bolt hole 10 is relative with the trimming scale chi 9 on free end.In the present embodiment, institute
State the length of end graduated scale 8 on detection ruler 5 and mid-scale chi 11 respectively with the centre on left and right chi (1,2) and perpendicular chi 3
The length of graduated scale 11 is identical.
As shown in Figure 8, Figure 9, the base 4 includes the regulating part for being used to adjust the horizontal plane degree of base 4, the base
4 be rectangle box body, the fastener for being used for fixed perpendicular chi is provided with the side external shell of box body, close to the rectangular of fastener one end
The top surface of shape box body is horizontally installed with a base graduated scale 4-3.In the present embodiment, base graduated scale 4-3 range is 0-
110mm.Further, the trimming bolt 4-2, each trimming bolt 4-2 that the regulating part is more than 2 coordinate 2 nuts to make
With one of nut is installed on cuboid tray interior, and another nut is adjusted as traveling nut, by adjusting the nut
Whole trimming bolt 4-2 height.In the present embodiment, the trimming bolt 4-2 is 6, is divided into two rows and is symmetrically arranged on rectangle
On box body.
As shown in figure 1, application method of the present utility model is as follows:
1) firm banking 4:And adjust the flatness of base, one of level of horizon rule 23 by two horizon rules 23
It is installed on the length direction of rectangle box body top surface, another horizon rule 23 is horizontally installed to the width side of rectangle box body top surface
To as shown in Figure 10;6 trimming bolt 4-2 of adjustment are first passed through, make the vacuole of horizon rule 23 in length and width in scale 0
Put;Then the end graduated scale 8 on perpendicular chi 3 is installed on the sidepiece of base 4;
2) left chi 1, right chi 2, perpendicular chi 3 are assembled:The E arms 12 in the first bindiny mechanism 20 are carved with centre successively by bolt
Degree chi 11, end graduated scale 8 connect, similarly, by bolt by F arms 13 successively with mid-scale chi 11, end scale
Chi 8 connects, and completes the assembling of left and right chi (1,2);The G arms 14 in the first bindiny mechanism 20 are carved with middle by bolt
Degree chi 11 be connected after, be attached again with the end graduated scale 8 on base 4, complete the assembling of perpendicular chi 3;Due to what is assembled
The length of left and right chi (1,2) and perpendicular chi 3 is equal to the radius R of cylinder to be measured, then can determine spud leg cylinder by above structure
Home position;
3) detection ruler 5 is assembled:By bolt by the H arms 16 of the second bindiny mechanism 21 and mid-scale chi 11, end scale
Chi 8 is connected in turn, and completes the assembling of detection ruler 5;
4) bearing 18 of the nested inside of the first bindiny mechanism 20 and the bearing 18 of the second bindiny mechanism 21 nested inside are led to
Cross circular shaft 19 to connect, and the contact surface maximal clearance of the first bindiny mechanism 20 and the second bindiny mechanism 21 is 1mm;
5) vertical check chi 5 is installed:Finer wire upper end is connected in the first bindiny mechanism 20, its lower end connection plummet, lead
Fall for inverted conical body;
6) after the flatness for further determining that base 4, the reading of vertical check chi 6 is then verified that, makes plummet cone sharp
100mm scales on end alignment base graduated scale, to ensure that perpendicular chi 3 is vertical with base 4;
7) left chi 1, right chi 2, the trimming scale chi 9 on the perpendicular end graduated scale 8 of chi 3 are adjusted, makes the finger of each trimming scale chi 9
Pin number is 10mm, so that it is determined that the home position of cylinder to be measured, continues to adjust the position of base 4 if being unsatisfactory for requirement, until
Meet left chi 1, right chi 2, untill the length of perpendicular chi 3 is equal to the radius R of cylinder circle to be measured;
8) the trimming scale chi 9 on the perpendicular end graduated scale 8 of chi 3 is adjusted, it is 10mm to make pointer number, to ensure that detection ruler 5 is grown
Spend the radius R for cylinder to be measured;Then rotate detection ruler 5, by the pointer offset amount of the trimming scale chi 9 on detection ruler 5 come
Read data.Such as pointer number is 8mm, offset is:△=10mm-8mm=2mm, represent the circle real radius than theoretical half
The small 2mm in footpath;Otherwise it is big 2mm;But as long as it is qualified that obtained offset in the error range of production, is accordingly to be regarded as the circularity of spud leg,
Otherwise it is substandard product.
Above-mentioned steps 7) in, it can not be met by adjusting the trimming scale chi 9 on left and right chi (1,2) in any case:It is left
12 length of scale+E arms of chi 1+13 length of scale+F arms of the chi scale of trimming scale 9=radius R or right chis 2+scale of trimming scale chi 9
During=radius this condition of R, then show that the circularity of the spud leg is undesirable, then without carrying out the operation of step 8) again,
Testing result can be directly obtained.
Explanation embodiment of the present utility model is these are only, the utility model is not limited to, for this area
It is all within the spirit and principles of the utility model for technical staff, any modification, equivalent substitution and improvements made etc.,
It should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. ocean platform pile leg roundness measurement instrument, it is characterised in that:Including detection ruler (5), the first bindiny mechanism (20), Second bindiny mechanism (21) and left chi (1), right chi (2) and the perpendicular chi (3) in the circularity center of circle for determining cylinder to be measured, left chi (1), right chi (2) and perpendicular chi (3) are mutually connected vertically two-by-two by the first bindiny mechanism (20), wherein, left chi (1) and right chi (2) it is installed in same level, the upper end of perpendicular chi (3) is installed vertically at the center of left and right chi (1,2) place straight line, erects chi (3) lower end is fixed on the wall body of cylinder to be measured by base (4);The detection ruler (5) and the second bindiny mechanism (21) One end is installed on after being hinged on the vertical direction relative with perpendicular chi (3), the other end of second bindiny mechanism (21) and One bindiny mechanism (20) connects;The graduated scale identical length identified on the left chi (1), right chi (2) and perpendicular chi (3) is same, the freedom of the detection ruler (5) End is provided with a trimming scale chi (9).
- 2. ocean platform pile leg roundness measurement instrument according to claim 1, it is characterised in that:First bindiny mechanism (20) E arms (12), the F arms (13) being installed on same straight line are included, with E arms (12) and the orthogonal G arms of F arms (13) (14), and T-shaped structure the first hinged mechanism (7), the first end of the first hinged mechanism (7) is connected with E arms (12), second End is connected with F arms (13), the 3rd end is connected with G arms (14);Length phase is identified with E arms (12), F arms (13) and G arms (14) Same scale, and be connected respectively with left chi (1), right chi (2) and perpendicular chi (3) by fixture.
- 3. ocean platform pile leg roundness measurement instrument according to claim 2, it is characterised in that:Second bindiny mechanism (21) include H arms (16) and the second hinged mechanism (17), be identified with H arms (16) long with E arms (12), F arms (13) and G arms (14) Identical scale is spent, one end of the second hinged mechanism (17) and the first hinged mechanism (7) are coupled, its other end and H arms (16) Lower end connection, the upper end of H arms (16) is connected by fixture with detection ruler (5).
- 4. ocean platform pile leg roundness measurement instrument according to claim 1, it is characterised in that:The left chi (1), right chi (2) mainly it is sequentially connected to connect and is formed by end graduated scale (8) and mid-scale chi (11) with perpendicular chi (3), the mid-scale Offer bolt hole (10) on the both ends panel of chi (11), one end of end graduated scale (8) offers bolt hole (10), another End is provided with a trimming scale chi (9) as free end.
- 5. the ocean platform pile leg roundness measurement instrument according to claim 1 or 4, it is characterised in that:The trimming scale Chi (9) includes scale plate (9-2) and regulating bolt (9-1), and the regulating bolt (9-1) is connected with scale plate (9-2), the quarter Degree plate (9-2) is installed in the chute opened up on end graduated scale (8) and enters line slip under regulating bolt (9-1) control.
- 6. the ocean platform pile leg roundness measurement instrument according to claim 1 or 4, it is characterised in that:The trimming scale The range of chi (9) is ± 10mm.
- 7. ocean platform pile leg roundness measurement instrument according to claim 1, it is characterised in that:The detection ruler (5) by End graduated scale (8) and mid-scale chi (11) are sequentially connected to connect and formed, on the both ends panel of the mid-scale chi (11) Offer bolt hole (10), in end, one end of graduated scale (8) is provided with bolt hole (10), the bolt hole (10) with free end Trimming scale chi (9) it is relative.
- 8. ocean platform pile leg roundness measurement instrument according to claim 1, it is characterised in that:The base (4) includes For the regulating part for the horizontal plane degree for adjusting base (4), the base (4) is rectangle box body, outside the side of box body Housing is provided with the fastener for being used for fixed perpendicular chi (3), and the top surface close to the rectangle box body of fastener one end is horizontally installed with a bottom Seat graduated scale (4-3).
- 9. ocean platform pile leg roundness measurement instrument according to claim 8, it is characterised in that:The regulating part is 2 Trimming bolt (4-2) above, each trimming bolt (4-2) coordinate 2 nuts to use, and one of nut is installed on cuboid Tray interior, another nut adjust trimming bolt (4-2) height as traveling nut, by adjusting the nut.
- 10. ocean platform pile leg roundness measurement instrument according to claim 1, it is characterised in that:Also include being used to detect The vertical check chi (6) of perpendicular chi (3) installation perpendicularity, the vertical check chi (6) include finer wire and plummet, finer wire it is upper End is connected in the first bindiny mechanism (20), its lower end is connected with plummet, and the plummet is inverted conical body.
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TWI747232B (en) * | 2020-04-10 | 2021-11-21 | 精英電腦股份有限公司 | Standard certification device |
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TWI747232B (en) * | 2020-04-10 | 2021-11-21 | 精英電腦股份有限公司 | Standard certification device |
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