GB/T 1955-2019 English PDF

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GB/T 1955-2019: Construction winch
Status: Valid

GB/T 1955: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1955-2019	759	Add to Cart	6 days	Construction winch	Valid
GB/T 1955-2008	RFQ	ASK	6 days	Construction winch	Obsolete
GB/T 1955-2002	639	Add to Cart	5 days	Construction winch	Obsolete
GB/T 1955-1998	359	Add to Cart	3 days	Construction winch	Obsolete
GB/T 1955-1986	RFQ	ASK	3 days	Construction winch	Obsolete

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Basic data

Standard ID: GB/T 1955-2019 (GB/T1955-2019)
Description (Translated English): Construction winch
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: P97
Classification of International Standard: 91.220
Word Count Estimation: 38,338
Date of Issue: 2019-10-18
Date of Implementation: 2020-09-01
Older Standard (superseded by this standard): GB/T 1955-2008
Quoted Standard: GB/T 755; GB/T 3811; GB/T 4942.1; GB/T 5972; GB/T 13306; GB/T 14048.1; GB/T 20118
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the terms and definitions, classification, technical requirements, test methods, inspection rules, marking and storage of construction hoists (hereinafter referred to as "hoists"). This standard applies to winches driven by electric motors used in construction and installation projects, and winches driven by other methods can also be used for reference. This standard also applies to hoists that move loads up and down, horizontally, and tilted.

GB/T 1955-2019: Construction winch

---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.
Construction winch ICS 91.220 P97 National Standards of People's Republic of China Replace GB/T 1955-2008 Construction winch Published on.2019-10-18 2020-09-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Category 3 5 Technical requirements 4 6 Test method 11 7 Inspection rules 14 8 signs and storage 16 Appendix A (Normative Appendix) Method for determining the working level of a winch 17 Appendix B (Normative Appendix) Design and calculation method for general mechanical parts of winches 20 Appendix C (Normative Appendix) Calculation Method for Size Parameters of Reel Rope Appendix D (informative) Calculation method for reel strength 26 Appendix E (informative) Cycles, projects, methods and inspection criteria for inspections 30 Appendix F (informative) Test Table 32 Appendix G (Normative Appendix) Classification of faults in reliability tests and their damage degree 35

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 1955-2008 "Building Windlass". The main technical changes compared with GB/T 1955-2008 as follows. --- Revised the scope of application of the winch (see Chapter 1, Chapter 1 of the.2008 edition); --- Removed the terms and definitions of high-speed hoist and speed hoist (2008, 3.3, 3.6); ---Modified the definition of fast winch and slow winch (see 3.1.2, 3.1.3,.2008, 3.4, 3.5); --- Increased the representation of the hoist model code (see 4.2); --- Increased the minimum breaking force coefficient of different cores of steel core wire rope (see Table 5); --- Increased the braking torque requirements for non-slip hoist brakes of M6 and above (see 5.4.2); ---Modified the requirements for the strength of the fixed end of the wire rope (see 5.8.4, 5.8.4 of the.2008 edition); ---Modified the conditions for setting the rope arranging device (see 5.9.3, 5.9.3 of the.2008 edition); --- Modified the minimum number of work cycles for the hoist reliability test (see 5.13.1, 5.13.1 for the.2008 version); ---Modified the safety factor for the calculation of welded reels (see D.2, D.1 of the.2008 edition); --- Removed the requirements for the abolished standards JG/T 5035, JG/T 5066 (2008 version 5.6.2, 6.5.8). This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Construction Machinery and Equipment Standardization Technical Committee (SAC/TC328). This standard was drafted. Nantong Liwei Machinery Co., Ltd., Beijing Construction Mechanization Research Institute Co., Ltd., National Construction City Construction Machinery Supervision and Inspection Center, Henan Chongpeng Machinery Co., Ltd., Beijing Jianyan Machinery Technology Co., Ltd., Hunan Lianzhi Intelligent Technology Co., Ltd. China Construction Education Association. The main drafters of this standard. Yan Xingjian, Ding Bangjian, Liu Shuang, Deng Lianghua, Li Ning, Liao Huihong, Hong Lei, Ma Xiaoli, Liu Yuhua, Li Kai, Liu Chengyu, Zheng Xiong, Li Qi. The previous versions of the standards replaced by this standard are. ---GB/T 1955-1998, GB/T 1955-2002, GB/T 1955-2008; ---GB/T 6947-1986; ---GB/T 7920.2-1987, GB/T 7920.2-2004; ---GB 13329-1991. Construction winch

1 Scope

This standard specifies the terms and definitions, classification, technical requirements, test methods, inspection rules for construction winches (hereinafter referred to as "hoist"). As well as signs and storage. This standard applies to motor-driven hoists used in construction and installation projects. Other methods of hoisting machines can also be used. Use as directed. This standard also applies to hoists with up, down, horizontal and tilting moving loads.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 755 rotary motor rating and performance GB/T 3811 crane design specification GB/T 4942.1 The degree of protection (IP code) of the overall structure of a rotating electrical machine GB/T 5972 crane wire rope maintenance, maintenance, inspection and scrapping GB/T 13306 signage GB/T 14048.1 Low-voltage switchgear and control equipment - Part 1. General General technical conditions for GB/T 20118 wire rope

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 A machine used in construction and installation engineering to drive a load by driving a reel with a wire rope through a transmission device. 3.1.1 Sliding hoist loadfreefalwinches A hoist that disconnects the power between the motor and the reel and uses the gravity of the load itself to achieve a load reduction. 3.1.2 Fast winch fastwinches Winch with rated speed greater than 25m/min. 3.1.3 Slow winch low-speedwinches A hoist with a rated speed less than or equal to 25 m/min. 3.1.4 Single reel winch singledrumwinches; mono-drumwinches There is only one reel of the reel. ......

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