JB/T 5355-2002 Supplementary provisions for mechanical drawings of transformer products
Some standard content:
ICS29.180
K41
(D)a EEAn1 2 0 11 >UDuDEQt+e ×/2002-07-16 4
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JB||tt| |JB/T5355—2002
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JB/T53551991
2002-12-01
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This standard replaces JB/T5355-1991《 Supplementary Provisions for Mechanical Drawings of Transformer Products”. Compared with JB/T5355-1991, the main changes of this standard are as follows: 1. Added English name.
JB/T5355-2002
-The writing format is in accordance with GB/T1.1-2002 "Standardization Work Guidelines Part 1: Standard Structure and Writing Rules". Reference standards have been rewritten.
The terms and definitions in GB/T13361--1992 have been added to the terminology: the contents of each chapter have been partially revised.
Appendix A of this standard is a normative appendix.
This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Transformer Standardization Technical Committee. This standard was drafted by: Shenyang Transformer Research Institute. The main drafter of this standard: Han Qingheng.
This standard was first published in 1991.
1Scope
Supplementary provisions for mechanical drawings of transformer products. This standard specifies the drawing and related requirements for transformer product drawings. This standard is suitable for drawing drawings of transformer products. 2 Normative reference documents
JB/T5355-2002
The clauses in the following documents become the clauses of this standard through reference in this standard. For referenced documents with an H date, all subsequent amendments (excluding corrigenda) or revised versions do not apply to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. Version. For undated referenced documents, the latest edition applies to this standard. GB/T1311993 Mechanical drawing surface roughness symbols, codes and their notation methods (eqvISO1302:1992) GB/T1184--1996 Shape and position tolerances without tolerance values ??(evISO2768-2:1989) GB/T1804——1992|| tt||GB/T 4457.4-1984
GB/T 4457.5--1984
GB/T4458.1—1984
GB/T4458.5—1984
GB/T 4459.1—1995
GB/T4459.2—1984
GB/T4459.3—1984
GB/T 4459.4——1984
GB/T4459 .5—1999
GB/T 13361—1992
GB/T14665—1998
GB/T 14689—1993
GB/T 146901993
GB/T 14691—1993
Unnoted tolerances for linear dimensions of general tolerances (cuvisO2768-1:1989) Mechanical drawing
Mechanical drawing
Mechanical drawing
Mechanical drawing| |tt||Mechanical Drawing
Mechanical Drawing
Mechanical Drawing
Mechanical Drawing
Mechanical Drawing
Technical Drawing
Mechanical Engineering|| tt||Technical drawing
Technical drawing
Technical drawing
GB/T16675.1--1996
GB/T 16675.2-1996
GB/ T 17450--1998
GB/T 17451--1998
GB/T 17452-1998
GB/T 17453—-1998
JB/T5054.J —2000
JB/T5054.2—2000
JB/T 5054.3-2000
JB/T5054.4—2000
JB/T5054.5—2000| |tt||Drawing line (negISo1281982)
Rhyme symbol
Pattern drawing method
Dimensional tolerance and fit notation method (eqvISO406:1982) Representation method of threads and threaded fasteners ( egvISO6410:1993 Gear drawing method (neqISO2203:1973) Spline drawing method
Spring drawing method (neqISO2162:1973) Center hole representation method (egvISO6411:1982) General terms
CAD drawing rules ||tt ||Drawing format and format (eqvISO5457:1980) Scale (eqvISO5455:1979)
Academic body (eqvISO3098-1:1974)
Technical drawing
Technical drawing
Technical Drawing
Technical Drawing
Technical Drawing
Technical Drawing
Simplified Notation Part 1: Drawing General Method
Simplified Notation||tt| |Part 2: Dimensioning method
Drawing line (idtISO128-20:1996)
Pattern drawing method
Pattern drawing method
Pattern drawing method||tt| |View (neq1SO/DIS11947-1:1995) Partial view and section view (egvJSO/DIS11947-2:1995) Representation of section area (eqvISO/DIS11947-3:1995) General principles of product drawings and design documents
Basic requirements for product drawings and design documents. Product drawings and design file formats | 2000 Product Drawings and Design Document Modification Methods JB/T5355—2002
3 Terms and Definitions
GBT13361-1992 and the following terms and definitions apply to this standard. 3.1
A single type of assembly drawing
represents a single type (without variation) of a product, component or component, including necessary data and technical requirements drawings, and is accompanied by detailed columns and titles of the components column. | |tt | The parts list of the variable component should be prepared in a separate drawing to supplement the parts list and title block. 3.3
Typical assembly drawing
represents the same series of types of products, components or parts, including necessary data and technical requirements, and its components should be prepared separately for drawing details or drawings. Tabular parts list. 4 Drawing format and format
4.1 Drawing format and format should comply with GB/T14689-1993. 4.2 Give priority to AI, A2, A3, and A4 formats, 4.3 Do not use or use A0 and A0 extended format as little as possible. 5 Proportion
5.1 In principle, the proportion in the drawing should comply with the provisions of GB/T14690-1993. 5.2 The general assembly drawing, component assembly drawing, parts drawing and partial enlargement drawing should be drawn according to scale, and marked in the proportion column on the drawing. 5.3 In addition to the proportion specified in the standard, 1:8, 1:12.5, etc. may be used when necessary. Special proportions, but use them sparingly. 5.4 Tables, typical diagrams, and schematic diagrams (such as coils, body insulation diagrams, etc.) may not be drawn to scale. 5.5 Patterns (such as wooden parts, insulation parts, etc.) that are difficult to draw to scale may not be drawn to scale if the dimensions of length, width, thickness, thickness and diameter are very different (generally the difference is greater than 15 times). 5.6 For drawings that are not drawn to scale, the relative dimensions (or positions) must be comparable, especially when they are in the same direction. 5.7 For drawings that are not drawn to scale, do not fill in the scale in the scale column of the title block, but a 45° diagonal line needs to be drawn with a thin solid line. 6 Fonts
The writing fonts of drawings, design documents and other technical materials shall be in accordance with the regulations of GB/T14665--1998, GB/T14691-1993 and JB/T5054.1~62000,
7 graph line
7.1 When applying various drawing lines, the provisions of GB/T17450--1998 and GB/T4457.4--1984 must be strictly implemented. 7.2. Unnecessary lines should be avoided as much as possible in the drawings. 7.3 In special cases, when marking dimensions and drawing guide lines on dotted lines or double-dotted lines, the dimension limits should still be thin solid lines. 8 Surface symbols
8.1 The symbols for laminated parts such as laminated paperboard and laminated cloth boards are specified as: 2
8.2 The section symbol for laminated wood is specified as
The section symbols specified in 8.1 of this standard can also be used without causing misunderstanding. 8.3 The above two section symbols can also be used as marks of the lamination direction in the view of the outline drawing. JB/T5355-2002
8.4 The section symbols of windings, concrete, etc. can also be drawn partially or completely in the outline view as marks of the materials. 8.5 For insulating parts with smaller thickness, coloring can be used instead of section symbols. 9 How to draw drawings
9.1 Basic provisions
9.1.1 Drawings must be drawn in accordance with current national standards such as GB/T4458.1-1984, GB/T16675.1-1996, GB/T16675.2-1996, GB/T174511998, GB/T174521998 and GB/T17453-1998 and other relevant standards or regulations to ensure accuracy, completeness, uniformity and simplicity. When drawing with CAD, it must comply with the provisions of GB/T14665-1998 and other relevant standards. 9.1.2 The terms, symbols, codes, words, graphic symbols, structural elements and measurement units on the drawings shall comply with the relevant standards. 9.2 Provisions for not drawing separate part drawings. In principle, mechanical processing parts are one object per drawing. Part drawings should generally be drawn separately, especially for parts produced in workshops with process cards, where one drawing must be drawn for each part. Part processing drawings should not appear in assembly drawings, but considering the production characteristics, some parts may not be drawn separately: a) Assembly drawings of insulating parts and core laminations made of insulating paperboard are allowed to draw part processing drawings. b) When profiles (such as angle steel, channel steel, round steel, etc.) and plates (such as steel plates, paperboard, etc.) are cut into parts that are no longer processed, and there is no processing requirement for the surface roughness of the cut, part drawings may not be drawn. However, the size data of the part must be marked in the details column of the assembly drawing.
c) Parts of the same material (such as clamp parts, wood parts, copper bars, etc.) appearing in the same assembly drawing and manufactured in the same workshop are allowed to be drawn on the same part drawing. d) For purchased standard parts, if the specified standard code can fully determine all their data, drawings are not required. e) Parts or components of the same process and the same material are allowed to be drawn in the same drawing. 9.3 Simplified drawing method
For the same structure with regular distribution (such as the porcelain umbrella of the oil pipe and casing in the assembly drawing, the spacer, etc.), only one or several complete a)
structures need to be drawn, and the rest are connected with thin solid lines. The total number of the structure must be indicated in the processing drawing (see Figure 1, Figure 2, Figure 3). For the evenly distributed same elements (such as holes, etc.), one or several can be drawn on the part processing drawing, and the rest can be represented by the center line. b):
It may not be represented in the assembly drawing, but sometimes one or several can be drawn in the assembly drawing for positioning purposes (such as the position of the flange hole), and the rest may not be represented.
9.4 Drawing of parts in assembly drawings
a) Parts in the assembly drawing are drawn with visible contour lines (thick solid lines) or invisible contour lines (dotted lines). b) Parts that do not belong to this assembly drawing (some parts and components have been given in other assembly drawings, but need to be shown in this assembly drawing) can be drawn with imaginary contour lines (double-dotted lines). If the code, name and quantity need to be marked, use thin solid lines to lead out the markings.
c) Parts that do not belong to this assembly drawing can also be drawn with visible contour lines (thick solid lines) and given item numbers. The numbers in the details column of the assembly drawing should be enclosed in parentheses, and it should be noted in the notes: ××× is given. 9.5 Provisions for process description area
Restricted process requirements are generally not included in the drawings. If necessary, it is allowed to mark the use of certain processing methods and process descriptions, such as "same processing", "matching drilling", etc.
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JB/T53552002
Figure
10 Serial number of parts and their arrangement method in assembly drawings Figure 2
b)
Figure 3
Evenly distributed
10.1 According to the customary usage for many years when drawing transformer design drawings, the method of writing serial numbers in a Φ10mm circle (thin solid line) is generally adopted, and the serial number should be larger than the assembly The size numbers in the figure are highly large (see Figure 4) Figure 4
10.2 Each part drawn on the same drawing with the same material must be drawn with a guide line above the part figure, and the code must be marked above the horizontal line (thin solid line) of the guide line. When the name is inconsistent, the name must be written under the code (below the horizontal line) (see Figure 5). Limb plate
Figure 5
10.3 Group fasteners and parts groups with clear assembly relationships can use common guide lines. When the number of item numbers exceeds 3, the form of Figure 6 can be used. Figure 6
JB/T5355—2002
10.4 The item numbers on the assembly drawing should be arranged in clockwise or counterclockwise order. When they cannot be connected on the entire drawing, they can be arranged in order in each horizontal or vertical direction. When there are many item numbers in the assembly drawing, two or three layers of sequential arrangement are allowed. 11 Dimensioning Methods
11.1 The terminal of the dimension line used in the drawing shall only be marked in the form of "arrow" instead of "slash" according to the traditional drawing method and tradition. 11.2 When the terminal of the dimension line is marked with an arrow, and there is not enough space to draw the arrow, "dot" shall be used instead of "arrow" instead of slash. bzxz.net
11.3 When there are several elements with similar and repeated dimension values ??(such as holes) in the same drawing, only marking (such as coloring, etc.) shall be used instead of letter marking. 11.4 In the drawing, the size and number of holes (when there are many types and numbers of holes) shall be directly marked on the drawing instead of in the form of list.
11.5 The dimensions derived from the same datum mountain shall only be marked in the form of datum line instead of in the form of coordinate list. 11.6 When marking the chord length or arc length, if there are many dimensions to be marked, it is indeed difficult to mark, which may cause the drawing to be messy and unclear. Lines parallel to the center line of the main part can be used as dimension limits (see Figure 7). The dimension limits of the marked arc length can also be drawn radially, see Figure 8
11.7 Equal arc lengths on the circumference of the same radius (or diameter), the dimension values ??can be unified--in the technical requirements, Figure 7
Figure 8
12 Dimension tolerance and fit annotation method, thread and threaded fastener drawing method, spring drawing method, center hole representation method, gear drawing method, spline drawing method
12.1 According to GB/T4458.5-1984 and GB/T4459.1-1995, GB/T4459.2~4-1984, GB/T4459.5-1999 12.2 The unmarked tolerances of the dimensions and the unmarked tolerances of the form and position tolerances on the drawings shall be marked in accordance with the provisions of relevant standards such as GB/T1184-1996 and GB/T1804--1992. Generally, the tolerances are not marked separately, but are explained on the drawings, technical documents or standards. 13 Surface roughness code and its marking method
13.1 In principle, it shall comply with the provisions of GB/T131-1993. 13.2 The surface roughness of the machined surface of insulating parts (phenolic or epoxy cardboard and cloth board, etc.) shall be marked according to the surface roughness symbol of metal parts.
13.3 Insulating parts made of cardboard (including laminated cardboard) shall not be marked with surface roughness symbols for the time being. JB/T5355-2002
For surfaces processed without chips (such as those processed by gas cutting, punching and shearing, and which do not require further processing), the surface roughness can be expressed by the processing symbol without removing material (see Figure 9).
The surface roughness of wood parts is indicated by the symbol for material removal (see Figure 10) 13.5
9
Figure
6
10
Figure
Appendix A
(Normative Appendix)
Specific drawing methods for each part of transformer product drawings JB/T5355—2002
This appendix specifies the specific drawing methods for the core, coil, body insulation, lead wire, oil tank, general assembly and other drawings of transformer products A.1 Relevant provisions for core drawings
A.1.1 Core drawing system
A.1.1.1 The core (laminated) drawing should be drawn as a single type of assembly drawing (or typical assembly drawing). A.1.1.2 Iron core assembly drawings and single-type products can be drawn into a single type of assembly drawing, and series products can be drawn into typical assembly drawings A.1.2 Core (laminated) pattern drawing method
A.1.2.1 Iron core ( The main view of the mounting diagram can only draw the minimum and maximum size outlines. A.1.22 The enlarged cross-sectional view of the central column and iron yoke of the iron core (laminated) diagram should be basically drawn in proportion (the minimum and maximum level outlines must be drawn in proportion. When the line spacing is less than 2mm, they may not be drawn in proportion. ), the cross-section symbol is not required. Because the scale is different from the main view, the scale must be marked separately. A.1.2.3 The core (laminated) drawing is allowed to include processing drawings of laminated parts. It may not be drawn to scale, but it must be comparable. A.1.3 How to draw the circular core pattern
The drawing of the circular core does not need to be given a view, and the core size and other relevant data can be listed in the control data A.1.4 How to draw the clamp pattern||tt ||A.1.4.1 The clamp drawings should be drawn to scale, and generally the high and low pressure and upper and lower clamps are drawn separately. However, when the clamp structure is relatively simple and processing is convenient, high and low pressure soil clamps or high and low pressure clamps can be drawn on one picture. A.1.4.2 The clamp parts are made of the same material. They can be drawn on a drawing, with a guide line above each part drawing, marked with a code, and the corresponding name under the code (see Figure A.1). Allowed to edit here
Figure A.1
According to the original
A.1,4.3 When the lower clamp upper limb plate has arcs on both sides, The drawing method of the splicing joint is shown in Figure A.1. On the assembly drawing of A.1.4.4 clamp, drilling and other processing dimensions and surface roughness symbols are allowed to be marked. A.2 Relevant regulations on coil patterns
A.2.1 Coil pattern system
The coil pattern system is a winding schematic diagram and is generally drawn as a single type of assembly drawing. The same type of coil can also be drawn as a typical assembly diagram. | |tt | A.2.2.2 Coil diagram: All three-phase coils can be drawn on one drawing. For three-phase cabinets, one figure can be drawn at the same time. When the three phases are different, the three phases (phases A, B, and C) should be drawn separately. The figure, or only the complete coil figure of one phase is displayed, and the other two-phase meters draw the figures of different parts 7
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