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GB/T 38774-2020 English PDF

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GB/T 38774-2020: Adjustable permanent magnetic drives - General technical specifications
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 38774-2020	English	319	Add to Cart	4 days [Need to translate]	Adjustable permanent magnetic drives - General technical specifications	Valid	GB/T 38774-2020

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Basic data

Standard ID	GB/T 38774-2020 (GB/T38774-2020)
Description (Translated English)	Adjustable permanent magnetic drives - General technical specifications
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J19
Classification of International Standard	21.120.20
Word Count Estimation	17,164
Date of Issue	2020-04-28
Date of Implementation	2020-11-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 38774-2020: Adjustable permanent magnetic drives - General technical specifications

---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.
Adjustable permanent magnetic drives--General technical specifications ICS 21.120.20 J19 National Standards of People's Republic of China General technical specifications of permanent magnet governor 2020-04-28 release 2020-11-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Type classification and identification 1 5 Model and marking 3 6 Basic parameters 4 7 Technical requirements 8 8 Test method 9 9 Inspection Rules 9 10 Marking, packaging and storage 10 Appendix A (informative appendix) Comparison table of metric model and inch model 12 Appendix B (Informative Appendix) Selection Guide 13 Reference 14

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Standardization Technical Committee for Machine Shafts and Accessories (SAC/TC109). This standard was drafted by. Magna Sodium Magnetic Power Co., Ltd., Suzhou Sifu Rui Energy-saving Transmission Technology Co., Ltd., CMC Productivity Promotion Into the center, Wuxi Chuangming Transmission Engineering Co., Ltd., Shanxi Daxin Transmission Technology Co., Ltd., Erzhong (Deyang) Heavy Equipment Co., Ltd., Liaoning China Magnetic Power Technology Co., Ltd. The main drafters of this standard. Ma Zhongwei, Ming Cuixin, Deng Gaojian, Shao Jumin, Hengjing Wu, Chen Demin, Zhang Xinhui, Ma Weiwei, Zhu Yue. General technical specifications of permanent magnet governor

1 Scope

This standard specifies the terms and definitions, type classification and identification, model and mark, basic parameters, technical requirements, and tests of permanent magnet governors. Methods, inspection rules, signs, packaging and storage. This standard applies to the working environment temperature is -45 ℃ ~ 65 ℃, the speed regulation range is 30% ~ 99%, and the transfer nominal torque is 40N · m ~ 30000N · m, and permanent magnet governor with functions of isolating system vibration, buffer starting, overload protection, speed regulation and so on.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 3852 Coupling shaft hole and coupling type and size GB/T 3931 Coupling Terminology GB/T 4942.1 Degree of protection (IP code) classification of the overall structure of a rotating electrical machine GB/T 9239.1 Mechanical vibration constant state (rigid) rotor balance quality requirements Part 1.Inspection of specification and balance tolerance GB/T 12458 coupling classification GB/T 13384 General technical requirements for packaging of electromechanical products GB/T 38763 General technical specifications of permanent magnet coupling

3 Terms and definitions

The terms and definitions defined in GB/T 3931 and GB/T 38763 and the following apply to this document. 3.1 Adjustable permanent magnetic drives Connected between the active end and the driven end, through the interaction of the permanent magnetic field and the induced magnetic field to achieve flexible transmission of torque and motion, and at the same time A mechanical device that changes the speed of the driven end by adjusting the air gap.

4 Type classification and identification

4.1 Type classification See Table 1 for the classification of permanent magnet governors.

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