CN114818096B - Manufacturing method of rotary steel ladder of dust remover based on BIM technology - Google Patents
Manufacturing method of rotary steel ladder of dust remover based on BIM technology Download PDFInfo
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Abstract
The invention discloses a method for manufacturing a rotary steel ladder of a dust remover based on a BIM (building information modeling) technology. The method comprises the following steps: s1, drawing a three-dimensional model of the rotary steel ladder by using TEKLA software; s2, switching the three-dimensional model into a vertical map, and measuring the length of a line segment L between corresponding bisectors; s3, switching the three-dimensional model into a top view, wherein the length between the intersection points of the perpendicular lines at the equal dividing points of the straight line segments HK and the arc line segments HK is X; s4, combining the elevation view and the top view to form a combined lofting view; s5, lofting on the platform according to the combined lofting drawing; s6, rounding the inner ladder beam and the outer ladder beam by using a roller bed; s7, drawing an assembly line of the pedals on the inner ladder beam and the outer ladder beam; s8, welding the pedal with the inner side ladder beam; and S9, hoisting the outer ladder beam to the assembled pedal, and welding the outer ladder beam and the pedal according to the assembly line position of the outer ladder beam. The invention saves the technical measures and materials of the bracket, improves the construction efficiency and increases the operation safety.
Description
Technical Field
The invention relates to construction of constructional steel structures, in particular to a method for manufacturing a rotary steel ladder of a dust remover based on a BIM (building information modeling) technology.
Background
When the dust remover is installed and constructed, the rotary steel ladder on the outer side of the dust remover is large in rotating radius, rises spirally, is high in lifting height, and is assembled and welded by manufacturing a special assembly welding clamping fixture after the height of a ladder beam needs to be measured, wherein the ladder beam is made of channel steel or steel plates.
At present, the traditional method for processing and manufacturing the rotary steel ladder of the dust remover comprises the following steps: selecting a plurality of points (generally not less than 4) on the inner side and the outer side of a lower flange plate as manufacturing control points to measure the elevation of each different component on a CAD drawing, then marking the inner side and the outer side projection lines of the lower flange plate on a manufacturing platform after measuring the arc length between the projection corresponding position of each control point on the plane of the lower flange plate and the plane projection of the end point of the lower flange plate, welding a bracket by using angle steel and channel steel according to the position of the control point on the component to perform control point space positioning, and then assembling and welding the box girder of the steel structure of the rotary steel ladder on a clamping fixture consisting of brackets of different control points of the same component, wherein the vertical assembling and welding of the rotary steel ladder are needed by the method, and the consumption of technical materials is large because the vertical height (generally more than 2 meters) of the top of the rotary steel ladder from the ground, the difficulty of assembly and welding is great during the preparation, influences product quality, has great potential safety hazard simultaneously.
The invention discloses a modeling method for a hyperbolic component in TEKLA software, which is disclosed in Chinese patent application with the application number of CN 202011006518.8.
Disclosure of Invention
The invention aims to solve the technical problems and provides a method for manufacturing a rotary steel ladder of a dust remover based on a BIM technology, so that the cost is saved and the construction efficiency is improved.
The invention solves the technical problem and adopts the technical scheme that:
a manufacturing method of a rotary steel ladder of a dust remover based on a BIM technology comprises the following steps:
s1, drawing a three-dimensional model of the rotary steel ladder by using TEKLA software by using a BIM technology according to a CAD design drawing of the rotary steel ladder;
s2, switching a three-dimensional model of the rotary steel ladder into an elevation, connecting the lowest point E and the highest point F of the inner ladder beam of the rotary steel ladder, taking EF as the hypotenuse of the right triangle to serve as the EFG of the right triangle, dividing the hypotenuse EF of the EFG of the right triangle and the right angle EG in the horizontal direction into multiple points, connecting the corresponding equant points by straight lines, and measuring the length of a line segment L between the corresponding equant points, wherein the length of the line segment L is the actual height of the corresponding position of the inner ladder beam;
s3, switching a three-dimensional model of the rotary steel ladder into a top view, wherein a horizontal projection line of a central line of an inner side ladder beam is an arc line segment HK, a connecting end point H and an end point K form a straight line segment HK, the length of the straight line segment HK is equal to that of a right-angle side EG of a right-angled triangle EFG, the straight line segment HK is divided into multiple points in an equal way, the number of equal dividing points is equal to that of the equal dividing points in the step S2, each equal dividing point is crossed to form a perpendicular line of the straight line segment HK, the length between the perpendicular lines at the equal dividing points of the straight line segment HK and the intersection point of the arc line segment HK is X, and the distance between the adjacent equal dividing points of the straight line segment HK and the distance between the two end points of the straight line segment HK and the adjacent equal dividing points are Y;
s4, combining the vertical view and the top view of the inner side ladder beam to form a combined lofting view, wherein the right-angle edge EG of the right-angle triangle EFG of the vertical view is overlapped with the straight-line segment HK of the top view, a projection line M of the central lines of the inner side ladder beam and the outer side ladder beam on the vertical face is drawn, the intersection point of the projection line M and the extension line of the line segment L is Z, and the curve circle direction of the rotary steel ladder is marked;
s5, lofting on a platform according to a combined lofting drawing, and setting up a horizontal assembly welding support of an inner ladder beam, wherein the support comprises two upright posts and a cross rod between the two upright posts, each Z point is provided with a support, the cross rod spans a line segment EF and is parallel to a line segment L, the height of the top surface of each cross rod is the X value of the corresponding point of the cross rod, the center of the cross rod corresponds to the Z point, and the upright posts are welded at the two ends of the cross rod respectively;
s6, rounding the inner ladder beam and the outer ladder beam by using a roller bed;
s7, respectively placing the inner side ladder beam and the outer side ladder beam which are curved and rounded on a support for trimming, and drawing assembly lines of pedals on the inner side ladder beam and the outer side ladder beam;
s8, placing the pedals on the inner side ladder beam according to the positions of the assembly line, and welding the pedals with the inner side ladder beam;
and S9, hoisting the outer ladder beam to the assembled pedal, and welding the outer ladder beam and the pedal according to the position of the assembly line of the outer ladder beam.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
the invention saves the technical measure and the materials of the bracket, reduces the construction cost, shortens the manufacturing period, improves the construction efficiency, increases the operation safety and improves the manufacturing precision of the rotary steel ladder of the dust remover.
Further, the optimization scheme of the invention is as follows:
in step S2 and step S3, the bisector is at least three points.
Drawings
FIG. 1 is a three-dimensional model of a rotary steel ladder according to an embodiment of the present invention;
FIG. 2 is an elevational view of an inboard ladder beam bisecting an embodiment of the present invention;
FIG. 3 is a top view of an inboard ladder beam bisecting an embodiment of the present invention;
FIG. 4 is a composite loft view of an embodiment of the present invention;
FIG. 5 is a perspective view of a bracket according to an embodiment of the invention;
FIG. 6 is a perspective view of a stent erection according to an embodiment of the present invention;
FIG. 7 is a schematic view of an inboard ladder beam of an embodiment of the present invention;
FIG. 8 is a schematic view of a pedal assembly according to an embodiment of the present invention;
fig. 9 is an assembly view of an outboard ladder beam of an embodiment of the present invention.
In the figure: rotating the steel ladder 1; an inner ladder beam 1-1; 1-2 of an outer ladder beam; 1-3 of a pedal; a first support 2; 2-1 of a left upright post; 2-2 of a cross bar; 2-3 of a right upright post; a second bracket 3; a third bracket 4.
Detailed Description
The invention is further described in detail below with reference to the figures and examples.
The embodiment is a method for manufacturing a rotary steel ladder of a dust remover based on a BIM technology, which comprises the following steps:
s1, drawing a three-dimensional model (shown in figure 1) of the rotary steel ladder 1 by using TEKLA software through a BIM technology according to a CAD design drawing of the rotary steel ladder 1, wherein the rotary steel ladder 1 mainly comprises an inner side ladder beam 1-1, an outer side ladder beam 1-2 and three pedals 1-3, the inner side ladder beam 1-1 and the outer side ladder beam 1-2 are both channel steel, and notches are arranged in a back-to-back manner;
s2, switching the three-dimensional model into an elevation (shown in figure 2), connecting the lowest point E and the highest point F of the inner side ladder beam 1-1 of the rotary steel ladder 1, taking EF as the hypotenuse of the right triangle to be used as the EFG of the right triangle, equally dividing the hypotenuse EF of the EFG of the right triangle and the right angle EG in the horizontal direction into 3 points, equally dividing the points into four segments, connecting the equal division points corresponding to the hypotenuse EF and the right angle EG by straight lines, and sequentially measuring the length L of the line segment between each corresponding equal division point 1 、L 2 And L 3 The length of the right-angle side GF of the right-angle triangle is L 4 ，L 1 、L 2 、L 3 And L 4 The actual height of the corresponding position of the inner side ladder beam 1-1;
s3, switching the three-dimensional model into a top view (shown in figure 3), wherein a horizontal projection line of a central line of the inner ladder beam 1-1 is an arc line segment HK, a connecting end point H and an end point K form a straight line segment HK, the length of the straight line segment HK is equal to that of a right-angle side EG of a right-angled triangle EFG, 3 points of the straight line segment HK are equally divided, perpendicular lines of the straight line segment HK are drawn through all equally divided points, each perpendicular line is intersected with the arc line segment HK, and the length between intersection points of perpendicular lines at the equally divided points of the straight line segment HK and arc line segments HK is X in sequence 1 、X 2 And X 3 The distance between the end point H of the straight line segment HK and the immediately adjacent bisector is Y 1 The distances between adjacent bisectors of the straight line segments HK are Y in sequence 2 And Y 3 The distance between the end point K of the straight line segment HK and the immediately adjacent bisector is Y 4 ；
S4, combining the vertical view and the top view of the inner ladder beam 1-1 to form a combined lofting view (shown in FIG. 4), wherein the right-angle edge EG of the right-angle triangle EFG of the vertical view is superposed with the straight line segment HK of the top view to draw a projection line M of the central lines of the inner ladder beam 1-1 and the outer ladder beam 1-2 on the vertical surface, and the intersection points of the projection line M and the extension lines of the line segments L are Z in sequence 1 、Z 2 And Z 3 Marking the curved direction of the rotary steel ladder 1;
s5, lofting on a platform according to a combined lofting drawing (shown in figure 6), and erecting three horizontal assembly welding supports of an inner side ladder beam 1-1, wherein the three horizontal assembly welding supports are a first support 2 (shown in figure 5), a second support 3 and a third support 4 which are identical in structure, the first support 2 mainly comprises a left upright post 2-1, a cross rod 2-2 and a right upright post 2-3, the cross rod 2-2 is positioned between the left upright post 2-1 and the right upright post 2-3, the left upright post 2-1 and the right upright post 2-3 are made of angle steel, and the cross section of the cross rod 2-2 is rectangular. Each Z point is provided with a bracket, and the first bracket 2, the second bracket 3 and the third bracket 4 are respectively positioned at the Z point 1 Point, Z 2 Point sum Z 3 Point, rails 2-2 cross segment EF and are parallel to segment L, the apex of each rail 2-2The height of the surface is X value of the corresponding point, and the heights of the top surfaces of the cross bars 2-2 of the first support 2, the second support 3 and the third support 4 are X respectively 1 、X 2 And X 3 The centers of the crossbars 2-2 of the first, second and third supports 2, 3 and 4 are respectively aligned with Z 1 Dot, Z 2 Point sum Z 3 Correspondingly, after the height and the position of the cross bar 2-2 are positioned, the two ends of the cross bar 2-2 are respectively welded with the left upright 2-1 and the right upright 2-3, and the left upright 2-1 and the right upright 2-3 limit the inner ladder beam 1-1;
s6, rounding the inner ladder beam 1-1 and the outer ladder beam 1-2 by using a roller bed;
s7, respectively placing the inner side ladder beam 1-1 and the outer side ladder beam 1-2 which are curved into a circle on three supports for trimming, and drawing an assembly line N (shown in figure 7) of the pedal 1-3 on the web plates of the inner side ladder beam 1-1 and the outer side ladder beam 1-2;
s8, placing the pedals 1-3 on the web plate of the inner side ladder beam 1-1 according to the position of an assembly line N, and welding the pedals 1-3 with the inner side ladder beam 1-1;
s9, hoisting the outer ladder beam 1-2 to the assembled pedal 1-3, and welding the outer ladder beam 1-2 and the pedal 1-3 according to the position of the assembly line N.
The invention saves the technical measure and the materials of the bracket, reduces the construction cost, shortens the manufacturing period, improves the construction efficiency, increases the operation safety and improves the manufacturing precision of the rotary steel ladder of the dust remover.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (2)
1. A manufacturing method of a rotary steel ladder of a dust remover based on a BIM technology comprises the following steps:
s1, drawing a three-dimensional model of the rotary steel ladder by using TEKLA software by using BIM technology according to a CAD design drawing of the rotary steel ladder;
s2, switching a three-dimensional model of the rotary steel ladder into an elevation, connecting the lowest point E and the highest point F of the inner ladder beam of the rotary steel ladder, taking EF as the hypotenuse of the right triangle to serve as the EFG of the right triangle, dividing the hypotenuse EF of the EFG of the right triangle and the right angle EG in the horizontal direction into multiple points, connecting the corresponding equant points by straight lines, and measuring the length of a line segment L between the corresponding equant points, wherein the length of the line segment L is the actual height of the corresponding position of the inner ladder beam;
s3, switching the three-dimensional model of the rotary steel ladder into a top view, wherein a horizontal projection line of the central line of the inner ladder beam is an arc line segment HK, a connecting end point H and an end point K form a straight line segment HK, the length of the straight line segment HK is equal to that of a right-angle side EG of a right-angled triangle EFG, the straight line segment HK is equally divided into multiple points, the number of equally divided points is equal to that of equally divided points in the step S2, perpendicular lines of the straight line segment HK are formed by crossing all equally divided points, each perpendicular line is intersected with the arc line segment HK, the length between the perpendicular lines at the equally divided points of the straight line segment HK and the intersection point of the arc line segment HK is X, and the distance between adjacent equally divided points of the straight line segment HK and the distance between two end points of the HK and the immediately adjacent equally divided points are Y;
s4, combining the vertical view and the top view of the inner side ladder beam to form a combined lofting view, wherein the right-angle edge EG of the right-angle triangle EFG of the vertical view is overlapped with the straight-line segment HK of the top view, a projection line M of the central lines of the inner side ladder beam and the outer side ladder beam on the vertical face is drawn, the intersection point of the projection line M and the extension line of the line segment L is Z, and the curve circle direction of the rotary steel ladder is marked;
s5, lofting on a platform according to a combined lofting drawing, and erecting a horizontal assembly welding support of an inner ladder beam, wherein the support comprises two upright posts and a cross bar between the two upright posts, each Z point is provided with a support, the cross bar crosses a line segment EF and is parallel to a line segment L, the height of the top surface of each cross bar is the X value of the corresponding point, the center of the cross bar corresponds to the Z point, and the two ends of the cross bar are respectively welded with the upright posts;
s6, rounding the inner ladder beam and the outer ladder beam by using a roller bed;
s7, respectively placing the inner side ladder beam and the outer side ladder beam which are curved and rounded on a support for trimming, and drawing assembly lines of pedals on the inner side ladder beam and the outer side ladder beam;
s8, placing the pedals on the inner side ladder beam according to the positions of the assembly line, and welding the pedals with the inner side ladder beam;
and S9, hoisting the outer ladder beam to the assembled pedal, and welding the outer ladder beam and the pedal according to the assembly line position of the outer ladder beam.
2. The method for manufacturing the rotary steel ladder of the dust collector based on the BIM technology as claimed in claim 1, wherein the method comprises the following steps: in step S2 and step S3, the bisector is at least three points.
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| CN202210753920.5A CN114818096B (en) | 2022-06-30 | 2022-06-30 | Manufacturing method of rotary steel ladder of dust remover based on BIM technology |
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| CN114818096B true CN114818096B (en) | 2022-09-06 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204475712U (en) * | 2014-12-24 | 2015-07-15 | 北京凯盛建材工程有限公司 | A kind of through spiral stairs |
| WO2018148192A1 (en) * | 2017-02-07 | 2018-08-16 | Dorel Home Furnishings, Inc. | Ladder with tread system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499665B (en) * | 2014-12-24 | 2017-02-22 | 北京凯盛建材工程有限公司 | Through type spiral stair and arranging method thereof |
| CN107190963A (en) * | 2016-03-15 | 2017-09-22 | 五冶集团上海有限公司 | A kind of portable steel ladder platform and preparation method thereof and application |
| US10138682B2 (en) * | 2016-12-28 | 2018-11-27 | Werner Co. | Tri-foot, ladder and method |
| CN107299767B (en) * | 2017-06-23 | 2019-06-25 | 中国一冶集团有限公司 | A kind of absolute altitude setting means and setting method applied to the rotation steel ladder production of box-type section helical-blade sheet |
| CN108179877A (en) * | 2017-12-29 | 2018-06-19 | 青建集团股份公司 | Mitigate the cast-in-place torsion plate circular arc track construction method of helical curve multilayer |
| CN108268707B (en) * | 2017-12-31 | 2021-08-06 | 马钢集团设计研究院有限责任公司 | ReVIT-based transfer station standard template drawing method and transfer station construction method |
| CN109531062B (en) * | 2018-11-23 | 2021-04-30 | 防城港中一重工有限公司 | Method for manufacturing uneven bending box beam rotary ladder |
| CN110171528B (en) * | 2019-06-28 | 2021-08-20 | 中船黄埔文冲船舶有限公司 | Lofting manufacturing method of side-push grating |
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- 2022-06-30 CN CN202210753920.5A patent/CN114818096B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204475712U (en) * | 2014-12-24 | 2015-07-15 | 北京凯盛建材工程有限公司 | A kind of through spiral stairs |
| WO2018148192A1 (en) * | 2017-02-07 | 2018-08-16 | Dorel Home Furnishings, Inc. | Ladder with tread system |
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