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(Design specification for hoist of hydropower project. Part 3: Design specification for screw hoist)
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NB/T 10341.3-2019
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Basic data Standard ID | NB/T 10341.3-2019 (NB/T10341.3-2019) | Description (Translated English) | (Design specification for hoist of hydropower project. Part 3: Design specification for screw hoist) | Sector / Industry | Energy Industry Standard (Recommended) | Classification of Chinese Standard | P26 | Classification of International Standard | 27.140 | Word Count Estimation | 88,812 | Date of Issue | 2019-12-30 | Date of Implementation | 2020-07-01 | Issuing agency(ies) | National Energy Administration |
NB/T 10341.3-2019: (Design specification for hoist of hydropower project. Part 3: Design specification for screw hoist) ---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Code for Design of Hoists for Hydropower Projects
Part 3.Code for Design of Screw Hoists
Energy Industry Standards of the People's Republic of China
Replace DL/T 5167-2002, SD 297-88, SD 298-88
Design specification for hoist of hydropower project
Part 3.Design specification for screw hoist
2019-12-30 released
2020-07-01 Implementation
Issued by the National Energy Administration
Foreword
According to the "National Energy Administration on the issue of the.2015 energy sector industry standard system (revision)
According to the requirements of the “Notice of the Plan” (Guoneng Technology (2015) No. 283), the specification compilation team has been extensively
Investigate and research, seriously sum up practical experience, refer to relevant domestic advanced standards, and extensively collect
On the basis of soliciting opinions, revise this specification.
The main technical content of this code is. basic regulations, design principles and requirements, loads,
Materials, machinery, structure, electrical, safety.
The main technical content of this specification revision is.
This code replaces "Code for Design of Hoist Gear for Hydropower and Water Conservancy Projects" DL/T 5167-2002
The relevant content of the screw hoist design in the article; this specification replaces the "QL type screw hoist
Machine series parameters" SD 297-88 and "QL type screw hoist technical conditions" SD 298-88.
-Added the classification of screw hoist.
-Added the relevant regulations for the swing type screw hoist to lift the arc gate.
-Added anti-corrosion regulations.
-Increased the requirement of welding structure for the base and chassis.
-Added the design requirements of the rolling screw hoist.
-Added "Security" chapter.
-Adjusted the material table of the load-bearing nut.
-Adjusted the model and series parameters of the screw hoist, and expanded the hoisting force series.
-The requirement that the rise angle of the thread center line is not less than 4° has been deleted.
This specification is managed by the National Energy Administration, proposed and incorporated by the General Institute of Hydropower and Water Conservancy Planning and Design.
Responsible for daily management, by the Energy Industry Hydropower Metal Structure and Hoist Standardization Technical Committee
Responsible for the explanation of specific technical content. If you have any comments or suggestions during the implementation process, please send water and electricity
Water Resources Planning and Design Institute (Address. No. 2 Kangbei Xiaojie, Liupu, Xicheng District, Beijing, Zip Code.
100120).
Editor-in-chief of this code. General Institute of Hydropower and Water Conservancy Planning and Design
Guangdong Water Conservancy and Electric Power Survey and Design Institute
The main drafters of this specification. Liu Xilong, Tao Yundong, Lin Zhaohui, and Huang Jun
He Gaonian Zeng Gengyun He Wencai Li Guorui
Ye Baodong Li Zhenxiang Chen Yewen Fu Mingwei
Ye Xi
Main reviewers of this code. Gong Jianxin, Xiao Duanlong, Chen Hong, Yao Changjie
Fang Hanmei Wei Wenwei Chen Xia Zhao Fuxin
Liao Yongping Yu Xiquan Cui Zhi Wu Xiaoning
Gao Wei Xu Dingguang Zhong Xiaodong Chen Wenhua
Li Shisheng
Table of contents
1 General...1
2 Terminology...2
3 Basic regulations...3
4 Design principles and requirements...5
4.1 General provisions...5
4.2 Selection and configuration...6
4.3 Transmission mechanism...6
4.4 Frame and embedded parts...7
4.5 Safety protection device...7
4.6 Anti-corrosion...7
5 Load...8
6 Materials...9
6.1 Casting...9
6.2 Forgings and rolled parts...9
6.3 Structural parts...10
6.4 Connecting materials...10
7 Machinery...12
7.1 Lifting screw and load-bearing nut...12
7.2 Drive mechanism and parts...17
8 Structure...23
8.1 Calculation principle...23
8.2 Load combinations...23
8.3 Allowable stress...23
8.4 Strength calculation of structural parts and connections...28
9 Electrical...33
9.1 General regulations...33
9.2 Power supply...33
9.3 Control and protection devices...33
9.4 Lighting, signal...34
9.5 Grounding, lightning protection...34
10 Security...35
10.1 Marks, nameplates, safety signs...35
10.2 Mechanical, structural, electrical, and fire safety requirements...35
10.3 Using maintenance files...36
Appendix A Model and Series Parameters of Screw Hoist...37
Appendix B Design profile and design profile dimensions of trapezoidal thread...40
Appendix C Friction Coefficient and Efficiency...42
Appendix D Stability Coefficient of Eccentric Compression...43
Appendix E Power Correction for Motor Operating Environment...46
Appendix F Allowable values of commonly used sliding bearing materials...48
Explanation of terms used in this specification...49
List of Reference Standards...50
Article description...52
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