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GB/T 39545.3-2020: Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits
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Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits
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GB/T 39545.3-2020
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Basic data | Standard ID | GB/T 39545.3-2020 (GB/T39545.3-2020) | | Description (Translated English) | Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J19 | | Classification of International Standard | 21.120 | | Word Count Estimation | 47,482 | | Date of Issue | 2020-12-14 | | Date of Implementation | 2021-10-01 | | Quoted Standard | GB/T 1800.1; GB/T 1800.2; GB/T 11334-2005; GB/T 12360-2005 | | Regulation (derived from) | National Standard Announcement No. 28 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the terms and definitions, symbols, calculation basis and design precautions, design and verification of interference connections, and longitudinal transmission of the keyless connection of shafts and hubs of closed gear transmissions (hereinafter referred to as interference connections) The general requirements of ying connection, hydraulic installation or disassembly of the wheel yi configuration, hydraulic installation and disassembly equipment, inspection, installation, fixing and disassembly of the conical hole wheel yi, inspection, installation and removal of the cylindrical hole wheel hub. This standard applies to the interference connection between the shaft and the wheel when the general industrial closed gear transmission in the form of spur gears, helical gears, herringbone gears, bevel gears and worms of metal materials adopts conical and cylindrical holes. It is suitable for the connection of the shaft with keyway, spline, non-integral hub or polygonal hole. | GB/T 39545.3-2020: Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits
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(Design and selection of components of closed gear transmission:Part 3: Keyless mating connection of shaft and hub)
ICS 21:120
J19
National Standards of People's Republic of China
Design and Selection of Components of Closed Gear Transmission
Part 3: Keyless mating connection of shaft and hub
2020-12-14 release
2021-10-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Symbol 4
5 Calculation basis and design considerations 7
5:1 Calculation basis 7
5:2 Design considerations 7
6 Design and verification of interference connection 8
6:1 Calculation torque T, safety factor K and friction factor μ 8
6:2 Calculation content 8
6:3 Calculation of minimum interference required to transfer load 9
6:4 Calculation of the maximum allowable interference without plastic deformation 11
6:5 Cylindrical interference fit selection 12
6:6 Choice of Conical Interference Fitting 12
6:7 Requirements for the bonding surface 16
6:8 Check of interference connection 17
6:9 Calculation of the amount of hub outer diameter expansion and shaft inner diameter reduction 17
6:10 Axial press-in force and press-out force during installation and disassembly 18
6:11 Pressure required for hydraulic installation and removal 18
6:12 Hub stress 18
6:13 Calculation example 19
7 General requirements for longitudinal interference connection 19
7:1 Structural requirements 19
7:2 Preparation before connection 21
7:3 Assembly of longitudinal connection 21
8 Hub configuration for hydraulic installation or removal 21
8:1 Oil filling port design 21
8:2 O-ring configuration design 21
9 Hydraulic installation and removal equipment 22
10 Inspection, installation, fixation and removal of conical hole hub 23
10:1 Contact check 23
10:2 Check the fit between the hub and the shaft 23
10:3 Installation 23
10:4 Fixing 27
10:5 Disassembly 27
10:6 Stress relief grooves in the hub 27
11 Inspection, installation and removal of cylindrical hole hub 27
11:1 Inspection 27
11:2 Installation 27
11:3 Disassembly 28
11:4 Stress relief grooves on the hub 28
Appendix A (informative appendix) Some coefficients in the calculation of interference 29
Appendix B (informative appendix) Calculation example 32
Appendix C (informative appendix) Typical design and dimensions of slotting and hydraulic assembly holes 37
Appendix D (informative appendix) Hydraulic installation and disassembly equipment 40
References 43
Foreword
GB/T 39545 "Parts Design and Selection of Closed Gear Transmissions" is divided into the following 5 parts:
---Part 1: Design and selection of general parts;
---Part 2: Key connection between shaft and hub;
---Part 3: Keyless mating connection of shaft and hub;
---Part 4: Selection of the balance level of the elastic coupling;
---Part 5: Static and dynamic characteristics of elastic couplings:
This part is Part 3 of GB/T 39545:
This section was drafted in accordance with the rules given in GB/T 1:1-2009:
This part was proposed by China Machinery Industry Federation:
This part is under the jurisdiction of the National Reducer Standardization Technical Committee (SAC/TC357):
Drafting organizations of this part: Tianjin Huajian Tianheng Transmission Co:, Ltd:, Jiangsu Tailong Reducer Co:, Ltd:, World Transmission (Tianheng)
Tianjin) Co:, Ltd:, Taiyuan University of Technology, Chongqing University, Nanjing University of Aeronautics and Astronautics, Zhengzhou Machinery Research Institute Co:, Ltd:, Hunan Huajianheng
Chuang Drive Technology Co:, Ltd:, Jiangsu Golden Elephant Transmission Equipment Co:, Ltd:, Beijing Xinxing Beyond Clutch Co:, Ltd:
The main drafters of this section: Li Zhaogang, Sun Hongli, Zhang Shaoming, Kong Xia, Wang Tie, Liu Shijun, Wei Jing, Zhao Ying, Liao Mingjian, Wang Yonghui, Wu Zhifei,
Zhang Ruiliang, Bao Heyun, Lu Fengxia, Zhu Rupeng, Yin Ping, Cai Yunlong, Chen Yonghong, Fu Yong, Dong Jianfeng, Kong Qingtang, Zhu Zicheng:
Design and Selection of Components of Closed Gear Transmission
Part 3: Keyless mating connection of shaft and hub
1 Scope
This part of GB/T 39545 specifies the keyless connection of the shaft and hub of the closed gear transmission (hereinafter referred to as the interference connection)
Terms and definitions, symbols, calculation basis and design considerations, design and verification of interference connections, general requirements for longitudinal interference connections, liquid
Hub configuration for pressure installation or removal, hydraulic installation and removal equipment, inspection, installation, fixing and removal of conical hole hubs, cylindrical hole hubs
Inspection, installation and removal:
This section applies to general industrial closed gears in the form of spur gears, helical gears, herringbone gears, bevel gears and worms made of metal materials:
The interference connection between the shaft and the hub when the transmission device adopts a conical hole and a cylindrical hole is not suitable for the shaft with keyway, spline, non-integral hub or
Connection of polygonal hole hub:
2 Normative references
The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article
Pieces: For undated references, the latest version (including all amendments) applies to this document:
GB/T 1800:1 Product Geometric Technical Specification (GPS) Linear Dimension Tolerance ISO Code System Part 1: Tolerances, Deviations and Matching
The basis of integration (ISO 286-1:2010, MOD)
GB/T 1800:2 Product Geometric Technical Specification (GPS) Linear Dimensional Tolerance ISO Code System Part 2: Standard Tolerance Zone Code
No:, hole and shaft limit deviation table (ISO 286-2:2010, MOD)
GB/T 11334-2005 Product Geometrical Technical Specification (GPS) Cone Tolerance
GB/T 12360-2005 Product Geometrical Technical Specification (GPS) Cone Fit
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
Juncturewithkeylessfits
Interference fit connection without keys:
3:2
Amount of interference
The difference between the outer diameter of the contained part and the inner diameter of the contained part at the matching diameter:
Note 1: The hub of this standard is a contained part, and the shaft is a contained part: In the following descriptions, the terms "hub" and "shaft" are generally used instead of "containment
Pieces" and "Included Pieces":
Note 2: Rewrite GB/T 5371-2004, definition 3:1:
3:3
Interferencejuncture
The connection method of the fixed structure formed by the shaft and the hub using the interference:
Note: Rewrite GB/T 5371-2004, definition 3:3:
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