Book title: Mechanical Design Curriculum Design
Author: Wang Hong
Publisher: Tsinghua University Press
Publication date: 2009 May 2019
ISBN: 9787811236132
Form: 16 pages
Pricing: 26 yuan "Mechanical Design Course Design" can be used as a mechanical textbook in higher vocational colleges The teaching materials designed for mechanical design courses in various professional, near-machine and non-machine categories can also be used by various schools such as staff universities, correspondence universities, TV universities, and amateur universities, and can be used as a reference for relevant engineering and technical personnel.
Author: Editor, editor: Gong Yunpeng, etc.
ISBN: 10 digits [750242198X] 13 digits [9787502421984]
Publisher: Metallurgical Industry Press
p>Publication date: 1999
Pricing: RMB 23.00 Part 1 Mechanical Design Course Design Guide
1 Overview
1.1 Mechanical Design Course Purpose of design
1.2 Content of mechanical design course design
1.3 Steps and progress of mechanical design course design
1.4 Methods and requirements of mechanical design course design< /p>
2 Overall design of transmission device
2.1 Determine the transmission scheme
2.2 Introduction to reducer types
2.3 Select electric motor
< p>2.4 Transmission ratio distribution2.5 Calculation of motion and power parameters of transmission device
3 Design calculation of transmission parts
3.1 Design of transmission parts other than reducer Calculation
3.2 Design calculation of transmission parts in the reducer
4 Structure of the reducer
4.1 Gear, shaft and bearing combination
4.2 Cabinet
4.3 Reducer accessories
5 Reducer assembly sketch design
5.1 Preliminary reducer assembly sketch
5.2 Strength check calculation of shafts, bearings and keys
5.3 Complete the assembly sketch design of the reducer
5.4 Characteristics and drawing steps of the assembly sketch design of the bevel-cylindrical gear reducer
5.5 Features and Drawing Steps of Worm Reducer Assembly Sketch Design
6 Parts Working Drawing Design
6.1 Design Requirements of Parts Working Drawings
6.2 Axis Part working drawing design
6.3 Gear part working drawing design
6.4 Box part working drawing design
7 Assembly working drawing design
7.1 Draw each view of the assembly work drawing
7.2 Mark dimensions
7.3 Part number, title block and detailed list
7.4 Technical characteristics of the reducer
7.5 Writing technical conditions
7.6 Checking assembly drawings
7.7 Correcting exercises for reducer assembly drawings
8 Writing design calculation instructions
p>8.1 Contents and requirements of design calculation instructions
8.2 Outline for writing design calculation instructions
9 Summary and defense of course design
Second Part of computer-aided mechanical design
1 Overview
2 Design data processing in computer-aided mechanical design
2.1 Number table programming
2.2 Interpolation calculation of number tables
2.3 Analysis of number tables
2.4 Programming of line graphs
2.5 Documentation processing and database of number tables and line graphs< /p>
3 Computer-aided design of typical mechanical parts
3.1 Computer-aided design of V belt transmission
3.2 Computer-aided design of roller chain transmission
< p>3.3 Computer-aided design of involute gear transmission3.4 Computer-aided design of ordinary worm transmission
3.5 Computer-aided design of shaft
3.6 Rolling bearing computer Assisted Design
Part 3 Electronic Drawing Board Drawing
1 Overview
2 Electronic Drawing Board CAXA Drawing Basics
2.1 Electronic Drawing Board User interface and menu system
2.2 Functions of commonly used keys
2.3 Conventions
2.4 Related issues in the electronic drawing process
3 Electronic drawing board drawing example
3.1 Axis parts working drawing
3.2 Gear parts working drawing
3.3 Reducer assembly working drawing
Part 4 Design Information
1 Mechanical Drawing
1.1 General Provisions
Drawing format and frame format (excerpted from GB/T146891993)
Proportion (extracted from GB/T
14690-1993)
Section symbols (from GB4457.5-1984)
Title block format of assembly drawings or parts drawings (from GB10609.1-1989)
Details table format (from GB10609.1-1989)
Name, type, width and application of drawing lines (from GB/T17450-1998)
1.2 Required drawings of commonly used parts Method
How to draw threads and threaded fasteners (from GB4459.1-1995)
Labeling of threads (from GB4459.11995)
Gears, How to draw racks, worms, worm gears and sprockets (from GB4459.2-1984)
How to draw gears, worm gears and worm meshing (from GB4459.2-1984)
How to draw splines and how to indicate dimensions (extracted from GB4459.3-1984)
1.3 Simplified symbols of mechanism movement
Simplified symbols of mechanism movement (extracted from GB44601984)
2 Commonly used materials and general standards and specifications
2.1 Commonly used materials
Some domestic standard codes
Some foreign standard codes
Comparison table of various hardness values ??of ferrous metals (extracted from GB1172-1974)
Elastic modulus and Poisson's ratio of commonly used materials
Density of commonly used materials
Materials Sliding friction coefficient
Friction coefficient of friction pair
Rolling friction arm (approximate value)
About mechanical transmission efficiency value and transmission ratio range
2.2 General standards
Standard dimensions (diameter, length, height, etc.) (from GB2822-1981)
Center hole (from GB145-1985)
< p>Fillet radius and chamfer size at mating surface (excerpted from GB6403.4-1986)Transition fillet radius of free surface of circular parts
Knurling (excerpted from GB6403. 3-1986)
Outer diameter dimensions of gear hob (from GB6083-1985)
Grinding wheel overtravel groove (from GB6403.5-1986)
Planer Cutting over-travel grooves
Minimum wall thickness
Thickness of outer wall, inner wall and ribs
Casting fillet
Casting fillet (Excerpted from JB/ZQ4256-1986)
Casting slope
Casting transition slope
3 Commonly used materials in mechanical design
3.1 Ferrous metal
Carbon structural steel (from GB700-1988)
High-quality carbon structural steel (from GB6991988)
Alloy structural steel (from GB3077-1988) )
Cast steel and cast iron for general engineering (excerpted from GB11352-1989, GB9439-1988, GB1348-1988)
3.2 Non-ferrous metals
Processed bronze (excerpted from GB5233-1985)
Casted copper alloy (from GB1176-1987)
3.3 Non-metallic materials
Commonly used engineering plastics
Industrial use Vulcanized rubber sheet (from GB5574-1994)
Industrial felt (from FJ314-1981)
Soft steel cardboard (from QB365-1981)
4 threads and Threaded connection
4.1 thread
Basic dimensions of ordinary threads (from GB196-1981, GB197-1981)
Select tolerance zones for internal and external threads (from GB197- 1981)
Thread engagement length (excerpted from GB197-1981)
4.2 Structural elements of threaded parts
Common thread ending, shoulder distance, undercut groove, Chamfer (from GB3-1979)
The threading depth and threaded hole size of coarse thread bolts and screws
The dimensions of fastener through holes and counterbores (from GB152.2~ 152.4－1988
, GB5277-1985)
4.3 bolts
Hexagon head bolts - Grade A and B (from GB5782-1986), fine thread - Grade A and B (from GB5785-1986) )
Hexagon head bolts - fully threaded - Grade A and B (excerpted from GB5783-1986)
Hexagon head bolts for reamed holes - Grade A and B (excerpted from GB27- 1988)
4.4 screws
Hexagon socket head screws (from GB70-1985)
Eye screws (from GB825-1988)
Unboxing screws (from GB85-1988)
Cross recessed countersunk head screws (from GB819-1985), Cross-recessed pan head screws (from GB818-1985)
Slotted cone End set screws (from GB71-1985), slotted flat end set screws (from GB73-1985)
Slotted long cylindrical end set screws (from GB75-1985)
4.5 Nuts
Type I hexagonal nuts - Grades A and B (excerpted from GB6170-1986), Type I hexagonal nuts - fine thread - Grades A and B
(excerpted from GB6171-1986 )
Round nut (from GB812-1988)
4.6 washer
Standard spring washer (from GB93-1987)
Round Stop washers for nuts (excerpted from GB858-1988)
4.7 retaining rings
Screw-tightened shaft end retaining rings (extracted from GB891-1986), bolt-tightened shaft end retaining rings (extracted from GB891-1986) Extracted from GB892-1986)
Retaining ring for hole - type A (extracted from GB893.1-1986)
Retaining ring for shaft - type A (extracted from GB894.1-1986) )
5-key, spline and pin connection
Ordinary flat key (extracted from GB1095-1979, GB1096-1979; confirmed to be valid in 1990)
Rectangular flower Basic key size series and position and symmetry tolerances (from GB1144-1987)
Dimensional tolerance zones of rectangular internal and external splines (from GB1144-1987)
Cylindrical pins ( Excerpted from GB119-1986), conical pin (extracted from GB117-1986)
Female threaded cylindrical pin (extracted from GB120-1986), internally threaded tapered pin (extracted from GB118-1986)
6 Rolling bearings
Deep groove ball bearings (GB/T276-1994)
Angular contact ball bearings (from GB/T292-1994)
Tapered roller bearings ( Excerpted from GB/T297-1994)
Cylindrical roller bearings (excerpted from GB/T283-1994)
Axis clearance of angular contact ball bearings and tapered roller bearings
Coordination of rolling bearings, shafts and seat holes (from GB/T275-1993)
7 couplings
HL type elastic pin coupling (from GB5014- 1985)
TL type elastic sleeve pin coupling (extracted from GB4323-1985)
ML type plum blossom-shaped elastic coupling (extracted from GB5272-1985)
< p>Sliding block coupling (from JB/ZQ4384-1986)8 Lubrication and sealing
8.1 Lubricants
The properties and uses of commonly used lubricants
The properties and uses of commonly used greases
8.2 Oil cup
Straight-through pressure oil cup (extracted from JB/T7940.1-1995)
Joint type pressure oil cup (from JB/T7940.2-1995)
Screw-cap type oil cup (from JB/T7940.3-1995)
Press-fit type Pressure-filled oil cup (from JB/T7940.4-1995)
8.3 Oil gauge and oil dipstick
Press-fit round oil gauge (from JB/T7941.1-1995)
Long oil mark (excerpted from JB/
T7941.3-1995)
Oil dipstick
8.4 Sealing device
Felt ring oil seal form and size (excerpted from JB/ZQ4606-1986)
Rotating shaft lip seal (from GB13871-1992)
Oil groove seal groove (from JB/ZQ4245-1986)
Labyrinth seal
O-ring axial groove dimensions (excerpted from GB/T3452.3-1988)
Types, dimensions and tolerances of universal O-ring rubber seals (code G) (excerpted from GB3452.1-1992 )
9 Reducer accessories
9.1 Inspection hole and inspection hole cover
9.2 Breather
Breath plug
< p>Breather9.3 Bearing cap
Screw-connected bearing cap
Embedded bearing cap
9.4 Screw plug and oil seal Pad
9.5 Oil retaining plate
9.6 Lifting device
Lifting lugs and hooks
10 Structure of common transmission parts
10.1 Structure of cylindrical gear
10.2 Structure of bevel gear
10.3 Structure of worm gear
10.4 Structure of V pulley
10.5 Structure of sprockets
11 Limits and fits, shape and position tolerances and surface roughness
11.1 Explanation of nouns and codes for tolerances and fits
Standards Tolerances and basic deviation codes
Types of fits and codes
11.2 Standard tolerance values ??and limit deviation values ??of holes and shafts
Basic dimensions to 500mm standard tolerance Value
The basic size is from more than 10mm to 315mm. The limit deviation value of the hole
The basic size is from more than 10mm to 315mm. The limit deviation value of the shaft
Main parts of the reducer Recommended fits
11.3 Shape tolerance and position tolerance (excerpted from GB/T1184-1996)
Straightness, flatness tolerance
Roundness, cylindricity Tolerances
Coaxiality, symmetry, circular runout and total runout tolerances
Parallelism, perpendicularity and inclination tolerances
Shaft geometric tolerance recommendations Labeling items
Recommended labeling items for box shape and position tolerance
11.4 Surface roughness
Surface roughness and corresponding processing methods
Typical Part surface roughness selection
11.5 Involute cylindrical gear accuracy (from GB10095-1988)
11.6 Bevel gear accuracy (from GB113651989)
11.7 Cylindrical worm , Worm gear accuracy (extracted from GB100891988)
12 motor
Y series (IP44) three-phase asynchronous motor technical data (extracted from ZB/TK22007-1988)
Y Outline and installation dimensions of series (IP44) three-phase asynchronous motor
Part 5 Reference Legend
1 Reducer assembly working drawing
Single-stage cylindrical gear reduction Reducer
Double-stage cylindrical gear reducer (soft tooth surface gear, cast box)
Double-stage cylindrical gear reducer (hard tooth surface gear, cast box)
Double-stage cylindrical gear reducer (soft tooth surface gear, welded structure box)
Bevel cylindrical gear reducer
Worm reducer (worm underneath)
p>
Worm reducer (integrated structure box)
Worm reducer (upper worm, with fan)
Planetary gear reducer (2KH type)
p>
2 working diagram of box parts
Double-stage cylindrical gear reducer box cover
Double-stage cylindrical gear reducer box seat
Cone- Cylindrical gear reducer box cover
Bevel-cylindrical gear reducer box seat
Worm reducer box cover
Worm reducer box seat
< p>3 Working drawings of shafts and wheel partsShaft
Cylindrical gear shaft
Cylindrical gear
Bevel gear
Axle
Bevel gear
Worm
Worm gear
Wheel core
Rim
Part 6 Mechanical Design Course Design Questions
ZDL Type Questions
ZDD Type Questions
ZL Type Questions
ZZ Type Questions< /p>
WD type questions
NGW type questions
References