YLJXM series mechanical design teaching training platform

Used for the "Mechanism Movement Simplified Diagram Surveying and Analysis Experiment" in the mechanical principles course. The workpiece is beautiful and elegant, with high precision in finishing and assembly, and the moving components are flexible and free of interference.

M*n technical parameters:
1. Model material: made of aluminum alloy material or real object.
2. The moving components are mechanically finished, with high installation accuracy and flexible movement of the mechanism.
3. The base plates and brackets of each model are p*nted uniformly, and the moving parts are color-coded to make them beautiful and elegant (if there is a base plate).
Model list:
(1) Threaded connection and screw transmission 

serial number	Model name
1	Single thread right hand thread
2	Double thread left-hand thread
3	Three-thread right-hand thread
4	Commonly used thread thread parts
5	Ordinary thread; coarse thread and fine thread <cutting>
6	Three types of cylindrical pipe threads, conical pipe threads, and conical threads (cutting)
7	Transmission thread: rectangular, trapezoidal, zigzag (cut)
8	Two types of bolted connections (cutaway)
9	Two types of double-headed stud and screw connections <cutaway>
10	Torque measuring wrench
11	Fixed torque wrench
12	Three commonly used friction and anti-loosening methods for threaded connections
13	Three types of mechanical anti-loosening commonly used in threaded connections
14	Loose bolt connection of lifting hook
15	Single tight bolt joint stress deformation
16	Three types of load reducing devices for bolted connections to withstand lateral loads
17	Sliding Spiral Integral Nut <Cutaway>
18	screw jack
19	There are four types of screw transmission: differential screw mechanism, reverse screw mechanism, screw mechanism formation, and screw transmission application

 (2) Keys, splines, keyless connections and pin connections

serial number	Model name
1	Three types of ordinary flat key connections <Section>
2	Guided flat key connection <section>
3	Two kinds of feather key connection <cutting>
4	Semicircular key connection <section>
5	Three types of wedge key connections <section>
6	Tangential key connection <section>
7	spline connection
8	Involute spline, centering according to tooth shape
9	Two types of profile connections
10	Three uses of pin connections <Cut>
11	Shaft end key connection design <cutaway>
12	Key joint design <section>
13	Comparison of three types of key and pin connections <Cut>

(3) Riveting, welding, gluing and interference fit connections

serial number	Model name
1	Overlap seam riveting <cutaway>
2	Double cover butt joint riveting <cutaway>
3	Single cover butt joint riveting <cutaway>
4	Four types of commonly used rivets after riveting <cutaway>

(5) Belt drive

serial number	Model name
1	Flat belt drive
2	V-belt drive
3	Timing belt drive
4	There are four types of structures of ordinary V-pulleys
5	Regular belt tensioning slide device
6	Belt periodic tensioning swing device
7	automatic belt tensioning device
8	Tension pulley device

(6)Ch*n drive

serial number	Model name
1	Single row sleeve roller ch*n drive
2	Double row sleeve roller ch*n drive
3	Toothed ch*n drive
4	There are four types of sprocket structures
5	Ch*n drive uneven analysis
6	Ch*n drive automatic tensioning device
7	Adjustable tensioning device for ch*n drive

 (7) Gear transmission

serial number	Model name
1	Cylindrical gear shaft
2	bevel gear shaft
3	Web structure cylindrical gear
4	Web-type bevel gear
5	Spoke-type gears
6	rack and pinion transmission
7	Crank bevel gear transmission
8	Internal spur gear transmission
9	Helical gear normal section

(8) Worm drive

serial number	Model name
1	Cylindrical worm drive
2	Arc surface worm drive
3	Stress analysis of worm drive
4	Worm drive with heat sink and fan
5	There are two structural forms of worm
6	There are four structural forms of worm gears

(9) Sliding bearings

serial number	Model name
1	split sliding bearings
2	Integral sliding bearing
3	Commonly used bearings <set of three>

(10) Rolling bearings

serial number	Model name
1	10 categories of rolling bearings (1, 2, 3, 4, 5 single row, 5 double row, 6, 7, N, NA) type <Chrome plated cutaway>
2	Rolling bearing diameter and width series <3 with the same inner diameter, different widths and different heights, 6 with chrome plating>
3	Cylindrical spur gear bearing support structure <Bearing formal installation>
4	Cylindrical helical gear bearing support structure <Bearing reverse installation>
5	Small bevel gear shaft support structure <Bearing reverse installation>
6	Small bevel gear shaft support structure <Bearing formal installation>
7	Worm shaft support structure <Full solid type>
8	Worm shaft support structure <fixed-swivel type>
9	Herringbone gear shaft support structure <full travel type>
10	curved sealing device
11	Bearing preload device

(11) Couplings and clutches

serial number	Model name
1	Flange coupling <Partial ring centering>
2	Flange coupling <flange centering>
3	Cross slide coupling
4	Cross universal coupling
5	Gear coupling
6	Elastic sleeve pin coupling
7	Flexible pin coupling
8	Plum blossom shaped elastic coupling
9	Ratchet overrunning clutch
10	dog clutch
11	single disc friction clutch
12	Multi-disc friction clutch
13	Teeth type safety clutch

(12) Axis

serial number	Model name
1	Shaft structural design process <set of 4 pieces>
2	Typical shaft parts <set of 4 pieces>
3	Shaft structure and assembly <Axis positioning one>
4	Sleeve, round nut, set screw, <axial positioning 2>
5	Spring ret*ning ring, cone, locking ret*ning ring (Axial Positioning Part 3)
6	Spline circumferential positioning <Circumferential positioning one>
7	Interference, keys, screws, etc. <Circumferential Positioning 2>
8	Circumferential positioning〈3〉
9	8 basic types of commonly used springs

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