CN110009713B - Method for drawing two-dimensional engineering drawing of main beam of bridge crane by using AutoCAD 1:1 - Google Patents
Method for drawing two-dimensional engineering drawing of main beam of bridge crane by using AutoCAD 1:1 Download PDFInfo
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- CN110009713B CN110009713B CN201910239389.8A CN201910239389A CN110009713B CN 110009713 B CN110009713 B CN 110009713B CN 201910239389 A CN201910239389 A CN 201910239389A CN 110009713 B CN110009713 B CN 110009713B
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F30/10—Geometric CAD
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Abstract
The invention discloses a method for drawing a bridge crane girder two-dimensional engineering drawing by utilizing AutoCAD rapid 1:1, which comprises the steps of firstly compiling a drawing program for drawing the bridge crane girder two-dimensional engineering drawing by utilizing AutoCAD rapid 1:1 by using Visual Basic language, manufacturing a client parameter input interface, and creating a database associated with the drawing program; when the system is used, a user inputs parameter data on a client parameter input interface and judges the integrity and correctness of the data, and after the data is correct and complete, a drawing program starts the AutoCAD to operate a drawing program of a two-dimensional engineering drawing to draw and label the two-dimensional engineering drawing of the bridge crane girder 1:1; when the engineering drawing needs to be printed, the size of the drawing and the type of the drawing frame are selected, the proportion of the main structure and the structure of the micro part can be respectively adjusted by a drawing program, and finally the engineering drawing is simultaneously exported and stored. The invention has the advantages of making the expression of the drawing structure clearer, omitting the complicated operation of manual drawing, effectively improving the efficiency of workers, saving time and avoiding the human error of manually drawing the drawing.
Description
Technical Field
The invention relates to a method for drawing an engineering drawing of a bridge crane girder, in particular to a method for drawing a two-dimensional engineering drawing of a bridge crane girder by using AutoCAD 1:1.
Background
Currently, under the influence of the national macro regulation and control policy and the joyful plan of the equipment manufacturing industry, the hoisting machinery equipment manufacturing industry in China enters a rapid development stage. The crane has various specifications, complex and various structures and mechanisms, complex relation among the structures and heavy design workload. The metal structure of the crane is a main part for bearing load of the crane, and the section steel and the steel plate are used as basic components and are connected by riveting, welding and other methods according to a certain structural form. The metal structure (bridge) of bridge crane is mainly formed from main beam, end beam, railing, walking table, track and driver's cab, etc. The main beam is used as a main bearing part of the bridge crane, and the performance of the main beam influences the overall performance of the whole crane. The two-dimensional engineering drawing of the girder is usually drawn in AutoCAD software manually by workers, and the two-dimensional engineering drawing is drawn again and marked again aiming at the girders of the same type and different specifications, so that the process is complicated, and the time is wasted. In addition, in the production of the main beam drawing, in order to highlight the details of some components, the proportion of the whole structure is usually damaged, and the main beam structure cannot be truly reflected. And because the restriction of paper size, some tiny structures on the girder can not clearly express on the drawing again. Aiming at the problems, the invention researches a design method of a main beam structure of a bridge crane and a key technology for drawing an engineering drawing.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects and provides a method for drawing a two-dimensional engineering drawing of a main beam of a bridge crane by using Visual Basic language to compile and utilizing AutoCAD (automatic computer aided design) 1:1, the two-dimensional engineering drawing of the main beam of the bridge crane with the scale of 1:1 is automatically drawn according to structural parameters of the main beam of the bridge crane provided by a user, and contents expressed on the drawing can be conveniently checked in AutoCAD software, wherein the contents comprise a Basic structure, a track, section steel, a door, a base, a connecting plate, a lifting lug, a welding seam, a threaded hole, a chamfer and a fillet of the main beam, and the structure of the main beam can be truly reflected; the drawing time of the two-dimensional engineering drawing of the main beam of the bridge crane can be reduced to the maximum extent, the efficiency of designers is effectively improved, and when the drawing needs to be printed out, the proportion of the main structure and the structure of the small component is respectively adjusted according to the size of the drawing.
The technical scheme of the invention is as follows:
a method for drawing a two-dimensional engineering drawing of a main beam of a bridge crane by using AutoCAD rapid 1:1 comprises the following steps:
(1) Compiling a drawing program for drawing a two-dimensional engineering drawing of a girder of the bridge crane by using an AutoCAD rapid 1:1 by using a Visual Basic language, manufacturing a client parameter input interface, and setting a data standard of input parameters according to a crane design standard;
(2) Creating a database associated with the charting program of step (1);
(3) When the system is used, a user inputs parameter data on a client parameter input interface;
(4) The drawing program firstly judges the completeness and correctness of the parameter data input in the step (3) according to the set input parameter standard, and then stores the parameter data as the reference data into a database according to the intention of the user; if the input data is incomplete or incorrect, the drawing program returns to a client parameter input interface to prompt a user to supplement or modify parameter data, and then the data judgment is carried out until the input data is complete and correct;
(5) When the input parameter data is complete and correct, namely the parameter data meets the input parameter standard in the drawing program, the input parameter data is embedded into the drawing program, the drawing program is operated in a background, autoCAD is started by the drawing program, then the drawing program of the two-dimensional engineering drawing is operated, the two-dimensional engineering drawing of the bridge crane girder of 1:1 is automatically drawn according to the input parameter data, and the drawn two-dimensional engineering drawing of the bridge crane girder comprises a girder assembly drawing and a two-dimensional engineering drawing of parts on the girder;
(6) Calling a two-dimensional graph editing function in AutoCAD through a drawing program, and marking and editing the two-dimensional engineering graph of the bridge crane girder in the step (5), wherein the marking and editing comprises marking and editing part serial numbers, welding symbols and sizes on a girder assembly graph; marking and editing the surface roughness symbols and the sizes on the part diagram on the main beam, thereby completing the drawing of the two-dimensional engineering diagram of the main beam of the bridge crane;
(7) If the two-dimensional engineering drawing of the bridge crane girder is printed, a user can select the drawing size and the drawing frame type according to the part and component structures, and a drawing program can automatically draw a drawing template in the AutoCAD according to the selected drawing size and the drawing frame type;
(8) When the printing program is executed, according to the size of the selected drawing, automatically scaling a two-dimensional engineering drawing of the main beam of the bridge crane through a drawing program, and locally amplifying the parts which are not clearly overlapped after scaling down on an assembly drawing of the main beam of the bridge crane; according to the proportional relation between the section height and the span of the main beam of the bridge crane, a drawing program cuts off a front view in an assembly drawing of the main beam of the bridge crane on the basis of scaling,
expressing by adopting a truncation drawing method; finally, placing the girder assembly drawing in the selected drawing frame and generating a detailed column;
(9) And finally, simultaneously exporting and storing the two-dimensional engineering drawing of the bridge crane girder 1:1 and the zoomed engineering drawing.
Further, the parameters of the client parameter input interface in the step (1) are structural parameters of a main beam of the bridge crane, including span, head type, width and height parameters, width and thickness of upper and lower flange plates, height and thickness of main and auxiliary webs, thickness and number of partition plates, model and length of longitudinal rib plates, size of a connecting plate, and types of doors, bases, lifting lugs and rails.
Further, when the input parameter data is complete and correct in the step (5), namely the parameter data meets the input parameter standard in the drawing program, the input parameter data is embedded into the program, the drawing program is operated in the background, autoCAD is started by the drawing program, then the drawing program of the two-dimensional engineering drawing is operated, the 1:1 drawing of the two-dimensional engineering drawing of the bridge crane girder is carried out according to the input parameter data, and the drawn two-dimensional engineering drawing comprises a girder assembly drawing and a two-dimensional engineering drawing of parts on the girder; when the drawing is specifically carried out, the drawing is carried out on the tracks, the section steels, the doors, the bases, the connecting plates, the lifting lugs, the welding seams, the threaded holes, the chamfers and the fillets in the main beam structure of the bridge crane in 1:1.
The basic structure of the main beam of the bridge crane, the track, the section steel, the door, the base, the connecting plate, the lifting lug, the welding line, the threaded hole, the chamfer and the fillet are all drawn by 1:1, and the position relation among all the components of the main beam can be truly and accurately reflected.
Furthermore, the assembly drawing of the main beam of the bridge crane comprises a main beam basic structure, a rail, section steel, a door, a base, a connecting plate, a lifting lug, a welding line, a threaded hole, a chamfer and a fillet.
Furthermore, when the assembly drawing of the bridge crane girder in the step (6) is marked, the serial numbers of the parts are marked in a clockwise sequence, and the serial numbers are marked on the same horizontal or vertical straight line.
Further, the drawing sizes in the step (7) include drawings A0, drawings A1, drawings A2, drawings A3 and drawings A4, and the frame types include mechanical drawing standard frames and enterprise customized frames. The requirements of different enterprises on the assembly of the main beam of the bridge crane and the production of parts can be met by selecting different drawing sizes and drawing frame types.
Furthermore, when the printing program is executed in the step (8), according to the size of the selected drawing, all two-dimensional engineering drawings of the main beam of the bridge crane are automatically scaled through a drawing program, and the parts and components which are not clearly overlapped after being scaled down on the assembly drawing of the main beam of the bridge crane are locally enlarged, wherein the parts and components which are not clearly overlapped after being scaled down specifically refer to the parts and components of which the boundary size is smaller than or equal to the scaling multiple.
On the basis of automatically scaling the two-dimensional engineering drawing of the main beam of the bridge crane, small components in the main beam structure are locally amplified, so that the printed drawing is clearer, and a user can conveniently check and use the drawing.
Further, in the step (8), according to a proportional relationship between the height of the section of the main beam of the bridge crane and the span, the drawing program may cut off the main view in the main beam assembly drawing of the bridge crane on the basis of scaling, and the drawing program is expressed by using a cut-off drawing method, specifically, when the height of the section of the main beam of the bridge crane is less than 1/17 span, the drawing program may cut off the main view in the main beam assembly drawing on the basis of scaling, and the drawing program is expressed by using a cut-off drawing method.
The method can effectively solve the problems that the original drawing of the two-dimensional engineering drawing of the main beam of the crane is slender and still can not be clearly expressed on the drawing after scaling, and the main beam assembly drawing of the crane is scaled and then is subjected to main view truncation expression, so that the printed drawing structure can be clearly expressed.
Furthermore, in the step (8), according to the proportional relationship between the height and the span of the section of the main beam of the bridge crane, the drawing program may cut off the main view in the assembly drawing of the main beam of the bridge crane on the basis of scaling, and the drawing program is expressed by using a cutting drawing method, specifically, when the height of the section of the main beam of the bridge crane is less than 1/17 of the span, the drawing program may cut off the main view in the assembly drawing of the main beam on the basis of scaling, and the drawing program is expressed by using a cutting drawing method; the main beam structure is expressed by adopting a truncation drawing method, namely, a main view in a main beam assembly drawing is truncated according to the symmetry of the main beam structure, and the main view in the main beam assembly drawing corresponding to one half of the main beam structure is expressed by adopting the truncation drawing method, so that the expression of the main beam structure is clearer.
Furthermore, in the step (9), the main beam engineering drawing is exported and stored, and the stored type is any one of four types, namely DWG, PDF, TIF and EDRW. The four storage types can meet the requirements of different users.
Compared with the prior art, the invention has the following beneficial effects:
1. the method for drawing the two-dimensional engineering drawing of the bridge crane girder by using the AutoCAD software 1:1 is compiled by using the Visual Basic language, so that a user can quickly and automatically draw the two-dimensional engineering drawing with the scale of 1:1 by using the AutoCAD software only by inputting Basic structural parameters of the bridge crane girder, the complicated operation of manual drawing is omitted, the drawing time of the two-dimensional engineering drawing of the bridge crane girder is greatly reduced, and the artificial error of manually drawing the drawing is avoided; and the contents expressed in the graph can be conveniently checked in the AutoCAD software, so that the efficiency of workers can be effectively improved.
2. The contents of the bridge crane girder two-dimensional engineering drawing drawn by the 1:1 comprise a girder basic structure, a rail, section steel, a door, a base, a connecting plate, a lifting lug, a welding line, a threaded hole, a chamfer and a fillet, and the rail, the section steel, the door, the base, the connecting plate, the lifting lug, the welding line, the threaded hole, the chamfer and the fillet in the bridge crane girder structure are all drawn by 1:1, so that the girder structure can be truly reflected.
3. The invention can also print drawings according to needs, and can respectively adjust the proportion of the main structure and the structure of the tiny parts to print according to the size of the drawings, and meanwhile, when the height of the section of the main beam of the bridge crane is less than 1/17 span, the drawing program can cut off the main view in the main beam assembly drawing on the basis of scaling, and the main view is expressed by adopting a cutting drawing method, so that the structure of the main beam of the bridge crane can be completely expressed, and a user can conveniently check the contents of the drawings.
4. The method can simplify and program the drawing of the two-dimensional engineering drawing of the main beam of the bridge crane, can be widely popularized and applied, and effectively improves the drawing efficiency of users.
Drawings
FIG. 1 is a general flow diagram of the method of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in FIG. 1, the method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by using AutoCAD rapid 1:1 provided by the invention comprises the following steps:
(1) Compiling a drawing program for drawing a two-dimensional engineering drawing of a main beam of the bridge crane by using an AutoCAD rapid 1:1 by using a Visual Basic language, manufacturing a client parameter input interface, and setting a data standard of an input parameter according to a crane design standard; the parameters of the client parameter input interface are basic structural parameters of a bridge crane girder, including span, head type, head width and height parameters, width and thickness of upper and lower flange plates, height and thickness of a main web plate and an auxiliary web plate, thickness and number of partition plates, type and length of longitudinal rib plates, size of a connecting plate, and types of doors, bases, lifting lugs and rails.
(2) Creating a database associated with the charting program of step (1);
(3) When the system is used, a user inputs parameter data on a client parameter input interface; the basic structural parameters of the bridge crane girder to be drawn are input, including span, head type, width and height parameters, width and thickness of upper and lower flange plates, height and thickness of main and auxiliary webs, thickness and number of partitions, type and length of longitudinal rib plates, size of connecting plates, and types of doors, bases, lifting lugs and rails.
(4) The drawing program firstly judges the completeness and correctness of the parameter data input in the step (3) according to the set input parameter standard, and then stores the parameter data as the reference data into a database according to the intention of the user; if the input data is incomplete or incorrect, the drawing program returns to a client parameter input interface to prompt a user to supplement or modify parameter data, and then the data judgment is carried out until the input data is complete and correct;
(5) When the input parameter data is complete and correct, namely the parameter data meets the input parameter standard in the drawing program, the input parameter data is embedded into the program, the drawing program is operated in a background, autoCAD is started by the drawing program, then the drawing program of the two-dimensional engineering drawing is operated, the 1:1 drawing of the two-dimensional engineering drawing of the girder of the bridge crane is carried out according to the input parameter data, and the drawn two-dimensional engineering drawing comprises a girder assembly drawing and a two-dimensional engineering drawing of parts on the girder; when the drawing is specifically carried out, the drawing is carried out on the tracks, the section steels, the doors, the bases, the connecting plates, the lifting lugs, the welding seams, the threaded holes, the chamfers and the fillets in the main beam structure of the bridge crane in 1:1. The bridge crane girder assembly drawing comprises a girder basic structure, a rail, section steel, a door, a base, a connecting plate, a lifting lug, a welding line, a threaded hole, a chamfer and a fillet.
(6) Calling a two-dimensional graph editing function in AutoCAD through a drawing program, and marking and editing the two-dimensional engineering drawing of the bridge crane girder in the step (5), wherein the marking and editing comprises marking and editing part serial numbers, welding symbols and sizes on a girder assembly drawing; marking and editing the surface roughness symbols and the sizes on the part diagram on the main beam, thereby completing the drawing of the two-dimensional engineering diagram of the main beam of the bridge crane; when the assembly drawing of the bridge crane girder is marked, the serial numbers of the parts are marked according to the clockwise sequence, and the marked serial numbers are on the same horizontal or vertical straight line.
(7) If the two-dimensional engineering drawing of the bridge crane girder is printed, a user can select the drawing size and the drawing frame type according to the part and component structures, and a drawing program can automatically draw a drawing template in the AutoCAD according to the selected drawing size and the drawing frame type; the drawing size comprises A0, A1, A2, A3 and A4 drawings, the drawing frame type comprises a mechanical drawing standard drawing frame and a drawing frame customized by an enterprise, and the drawing size and the drawing frame type can be selected according to different requirements of the enterprise on the two-dimensional engineering drawing.
(8) When the printing program is executed, according to the size of the selected drawing, automatically scaling a two-dimensional engineering drawing of the main beam of the bridge crane through a drawing program, and locally amplifying the parts which are not clearly overlapped after scaling down on an assembly drawing of the main beam of the bridge crane; the parts structure which is not clearly overlapped after being scaled down specifically refers to the parts structure of which the boundary size is less than or equal to the scaling multiple.
According to the proportional relation between the section height and the span of the main beam of the bridge crane, a drawing program cuts off a main view in an assembly drawing of the main beam of the bridge crane on the basis of scaling and adopts a cutting drawing method to express; specifically, when the height of the section of the main beam of the bridge crane is less than 1/17 span (recommended value of a design manual), a drawing program cuts off a front view in an assembly drawing of the main beam of the bridge crane according to the symmetry of the main beam structure on the basis of scaling, and a cut-off drawing method is adopted to express the front view in the assembly drawing of the main beam corresponding to one half of the main beam structure, so that the expression of the main beam structure is clearer.
Finally, placing the girder assembly drawing in the selected drawing frame and generating a detailed column;
(9) And finally, simultaneously exporting and storing the two-dimensional engineering drawing of the main beam 1:1 of the bridge crane and the zoomed engineering drawing, wherein the stored type is any one of DWG, PDF, TIF and EDRW, and one type can be selected for storage according to the requirements of customers.
Claims (10)
1. A method for drawing a two-dimensional engineering drawing of a girder of a bridge crane by using AutoCAD 1:1 is characterized in that: the method comprises the following steps:
(1) Compiling a drawing program for drawing a two-dimensional engineering drawing of a main beam of the bridge crane by using an AutoCAD rapid 1:1 by using a Visual Basic language, manufacturing a client parameter input interface, and setting a data standard of an input parameter according to a crane design standard;
(2) Creating a database associated with the charting program of step (1);
(3) When the system is used, a user inputs parameter data on a client parameter input interface;
(4) The drawing program firstly judges the completeness and correctness of the parameter data input in the step (3) according to the set input parameter standard, and then stores the parameter data as the reference data into a database according to the intention of the user; if the input data is incomplete or incorrect, the drawing program returns to a client parameter input interface to prompt a user to supplement or modify parameter data, and then the data judgment is carried out until the input data is complete and correct;
(5) When the input parameter data is complete and correct, namely the parameter data meets the input parameter standard in the drawing program, the input parameter data is embedded into the drawing program, the drawing program is operated in a background, the Auto CAD is started by the drawing program, then the drawing program of the two-dimensional engineering drawing is operated, the two-dimensional engineering drawing of the bridge crane girder of 1:1 is automatically drawn according to the input parameter data, and the drawn two-dimensional engineering drawing of the bridge crane girder comprises a girder assembly drawing and a two-dimensional engineering drawing of parts on the girder;
(6) Calling a two-dimensional graph editing function in the Auto CAD through a drawing program, and marking and editing the two-dimensional engineering drawing of the bridge crane girder in the step (5), wherein the marking and editing comprises marking and editing part serial numbers, welding symbols and sizes on a girder assembly drawing; marking and editing the surface roughness symbols and the sizes on the part diagram on the main beam, thereby completing the drawing of the two-dimensional engineering diagram of the main beam of the bridge crane;
(7) If the two-dimensional engineering drawing of the bridge crane girder is drawn, a user can select the drawing size and the drawing frame type according to the part and component structures, and a drawing program can automatically draw a drawing template in AutoCAD according to the selected drawing size and the drawing frame type;
(8) When the printing program is executed, according to the size of the selected drawing, automatically scaling a two-dimensional engineering drawing of the main beam of the bridge crane through a drawing program, and locally amplifying the parts which are not clearly overlapped after scaling down on an assembly drawing of the main beam of the bridge crane; according to the proportional relation between the section height and the span of the main beam of the bridge crane, a drawing program cuts off a main view in an assembly drawing of the main beam of the bridge crane on the basis of scaling and adopts a cutting drawing method to express; finally, placing the girder assembly drawing in the selected drawing frame and generating a detailed column;
(9) And finally, simultaneously exporting and storing the two-dimensional engineering drawing of the bridge crane girder 1:1 and the zoomed engineering drawing.
2. The method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by utilizing AutoCAD rapid 1:1 as claimed in claim 1, wherein the method comprises the following steps: the parameters of the client parameter input interface in the step (1) are basic structural parameters of a bridge crane girder, including span, head type, head width and height parameters, width and thickness of upper and lower flange plates, height and thickness of main and auxiliary webs, thickness and number of partitions, model and length of longitudinal rib plates, size of a connecting plate, and types of doors, bases, lifting lugs and rails.
3. The method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by utilizing AutoCAD rapid 1:1 as claimed in claim 2, wherein the method comprises the following steps: when the input parameter data is complete and correct in the step (5), namely the parameter data meets the input parameter standard in the drawing program, the input parameter data is embedded into the program, the drawing program is operated in the background, the Auto CAD is started by the drawing program, then the drawing program of the two-dimensional engineering drawing is operated, the 1:1 drawing of the two-dimensional engineering drawing of the bridge crane girder is carried out according to the input parameter data, and the drawn two-dimensional engineering drawing comprises a girder assembly drawing and a two-dimensional engineering drawing of parts on the girder; when the drawing is specifically carried out, the drawing is carried out on the tracks, the section steels, the doors, the bases, the connecting plates, the lifting lugs, the welding seams, the threaded holes, the chamfers and the fillets in the main beam structure of the bridge crane in 1:1.
4. The method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by utilizing AutoCAD rapid 1:1 as claimed in claim 3, wherein the method comprises the following steps: the bridge crane girder assembly drawing comprises a girder basic structure, a track, section steel, a door, a base, a connecting plate, a lifting lug, a welding line, a threaded hole, a chamfer and a fillet.
5. The method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by utilizing the AutoCAD rapid 1:1 as claimed in claim 4, wherein the method comprises the following steps: and (6) when the assembly drawing of the bridge crane girder is marked in the step (6), marking the serial numbers of the parts according to a clockwise sequence, wherein the serial numbers are marked on the same horizontal or vertical straight line.
6. The method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by utilizing the AutoCAD rapid 1:1 as claimed in claim 5, wherein the method comprises the following steps: the drawing size in the step (7) comprises drawings A0, A1, A2, A3 and A4, and the drawing frame types comprise a mechanical drawing standard drawing frame and an enterprise customized drawing frame.
7. The method for drawing the two-dimensional engineering drawing of the girder of the bridge crane by using the AutoCAD rapid 1:1 as the claim 6, wherein the method comprises the following steps: and (8) when the printing program is executed, automatically scaling all two-dimensional engineering drawings of the main beam of the bridge crane through a drawing program according to the size of the selected drawing, and locally amplifying the parts which are not clearly overlapped after being scaled down on the assembly drawing of the main beam of the bridge crane, wherein the parts which are not clearly overlapped after being scaled down specifically refer to the parts of which the boundary size is less than or equal to the scaling multiple.
8. The method for drawing the two-dimensional engineering drawing of the girder of the bridge crane by using the AutoCAD rapid 1:1 as the claim 7, wherein the method comprises the following steps: in the step (8), according to the proportional relation between the height of the section of the main beam of the bridge crane and the span, the drawing program can cut off the main view in the main beam assembly drawing of the bridge crane on the basis of scaling, and the drawing program is expressed by adopting a cutting drawing method, specifically, when the height of the section of the main beam of the bridge crane is less than 1/17 span, the drawing program can cut off the main view in the main beam assembly drawing on the basis of scaling, and the drawing program is expressed by adopting a cutting drawing method.
9. The method for drawing the two-dimensional engineering drawing of the main beam of the bridge crane by utilizing the AutoCAD rapid 1:1 as the claim 8, wherein the method comprises the following steps: in the step (8), according to the proportional relation between the height of the section of the main beam of the bridge crane and the span, the drawing program can cut off the main view in the main beam assembly drawing of the bridge crane on the basis of scaling and is expressed by adopting a cut-off drawing method, and specifically, when the height of the section of the main beam of the bridge crane is less than 1/17 span, the drawing program can cut off the main view in the main beam assembly drawing on the basis of scaling and is expressed by adopting a cut-off drawing method; the main beam structure is expressed by adopting a truncation drawing method, namely, a main view in a main beam assembly drawing is truncated according to the symmetry of the main beam structure, and the main view in the main beam assembly drawing corresponding to one half of the main beam structure is expressed by adopting the truncation drawing method, so that the expression of the main beam structure is clearer.
10. The method for drawing the main girder two-dimensional engineering drawing of the bridge crane by using the AutoCAD rapid 1:1 as in any one of claims 1 to 9, wherein the method comprises the following steps: and (4) exporting and storing the girder engineering drawing in the step (9), wherein the stored type is any one of DWG, PDF, TIF and EDRW.
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| CN115081070B (en) * | 2022-06-24 | 2023-06-23 | 安徽省交通规划设计研究总院股份有限公司 | Digital design system for bridge superstructure standard chart |
| CN116824006B (en) * | 2023-08-24 | 2023-12-01 | 上海电气泰雷兹交通自动化系统有限公司 | Automatic generation method of SVG (scalable vector graphics) graph of subway track |
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