二級減速器課程設計說明書reducer design specification
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- 二級減速器設計說明書
英文書寫Contents
Abstract 1
Chapter 1 Course Design Task Book 3
1.1 Purpose 3
1.2 Description of design project 3
1.3 Design Data 4
Chapter 2 Integral Design Scheme of Transmission Device 4
2.1 Transmission Scheme 4
2.2 Advantages and Disadvantages of this Scheme 4
Chapter 3 Selection of Motor 5
3.1 Motor Type Selection 5
3.2 Determination of the Efficiency of the Transmission 5
3.3 Selection of the motor capacity 5
3.4 Determination of the total transmission ratio and distribution transmission ratio of the transmission device 7
Chapter 4 Calculation of Dynamic Parameters 8
Chapter 5 Designation and calculation of high speed gear 11
5.1 Selection of gear type, accuracy grade, material and number of teeth 11
5.2 Design according to tooth surface contact fatigue strength 11
5.3 Determination of the sizes of transmission 15
5.4 Check the bending fatigue strength of tooth root 15
5.5 Calculations of other geometric dimensions of gear transmission 19
5.6 Summary of gear parameters and geometric dimensions 20
Chapter 6 Calculation of low-speed gear 21
6.1 Selection of gear type, accuracy grade, material and number of teeth 21
6.2 Designation according to tooth surface contact fatigue strength 22
6.3 Determination of the sizes of transmission 25
6.4 Check the bending fatigue strength of tooth root 26
6.5 Calculations of other geometric dimensions of gear transmission 30
6.6 Summary of gear parameters and geometric dimensions 30
Chapter 7 The designation of the shaft 32
7.1 Calculateion of High-speed shaft design 32
7.2 Calculation of jack shaft design 39
7.3 Calculation of low speed shaft 47
Chapter 8 Rolling bearing life check 53
8.1 Bearing check on high speed shaft 53
8.2 Bearing check on the jack shaft 55
8.3 Bearing check on the low speed shaft 57
Chapter 9 Key connection design calculation 58
9.1 Calculation check of coupling key connection 58
9.2 Calculation check of low speed pinion’s key connection 59
9.3 Calculation check of high speed main gear’s key connection 59
9.4 Calculation check of low speed main gear’s key connection 59
Chapter 10 Coupling selection 60
10.1 Coupling on the high speed shaft 60
10.2 Coupling on the low speed shaft 60
Chapter 11 Seal and lubricate the reducer 61
11.1 Selection of sealing 61
11.2 Gear lubrication 61
11.3 Bearing lubrication 62
Chapter 12 Reducer accessory 63
12.1 Oil level indicator 63
12.2 Ventilator 63
12.3 Drain plug 64
12.4 Peephole cover 65
12.5 Positioning pin 66
12.6 Cover screw 67
12.7 Lifting device 68
Chapter 13 Main structural dimensions of reducer housing 70
Chapter 14 Drawing of structure analysis of reduce 72
14.1 Drawing of assembly 72
14.2 Housing 73
14.3 Drawing of gears 74
14.4 Drawing of shafts 78
Chapter 15 Conclusion 81
15.1 Summary 81
15.2 Job description of team members 82
Reference 83
Attachment 84
Abstract
Belt conveyor is a kind of friction driven to transport materials in a continuous way machinery. It Is mainly composed of irame conveyor belt, supporting roller, roller, tensioning device and belt conveyor motor device. It can put the material on a certain conveying line and form a conveying process of material from the initial feeding point to the final unloading point. It can not only carry out the transport of broken bulk materials, but also the transport of finished articles. In addition to the pure material transport, it can also cooperate with the requirements of the technological process in the production process of various industrial enterprises to form a rhythmic assembly line.
Belt conveyor is widely used in metallurgy, coal, transportation, water and electricity, chemical and other departments, because it has a large amount of transport, simple structure, convenient maintenance, low cost, strong versatility and other advantages. Belt conveyor is also used in building materials, power, light industry, food, ports, ships and other departments.
Main contents of this manual is for the design of belt conveyor drive system, the V belt transmission and twoestage cylindrical gear reducer, used in the design and calculation to the "machine design foundation", "mechanical drawing" "tolerance an...
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