Mechanical parts teaching display case
The company produces mechanical parts teaching display cabinets. In order to meet the needs of teaching, the teaching aids products are gradually modernized. Based on the original basis, a set of mechanical parts teaching display cabinets has been developed. This set is divided into more than 400 kinds of parts models of 20 cabinets. The appearance is made of high-grade aluminum alloy cabinet, the surface of the board is made of fuchsia gold velvet, the model materials are colored plexiglass and hard polychloride, and the silver polyester polyester stickers are attached for necessary diagrams and document description. Beautiful production process. The use of this display cabinet can improve the teaching effect and save time. It is a teaching showroom equipment for ideal mechanical courses. ( Teaching Equipment | Teaching Instruments )
Showcase size: 1050 × 400 × 1780mm
Mechanical parts teaching showcase, the contents of each cabinet are as follows:
Serial number and name
Mechanical parts showcase content
Basic content of threaded connections
Thread type: ordinary thread, trapezoidal thread, rectangular thread, zigzag thread, arc pipe thread, cylindrical pipe thread, conical pipe thread, right-hand thread, left-hand thread, double-thread thread, three-thread thread
Type of threaded connection: bolted connection, stud bolted connection, screw connection, fastening screw connection.
There are 11 bolts, 4 studs, 9 screws, 5 set screws, 12 nuts, and 7 washers.
Friction and anti-loosening: counter top nut, locking hot ring closing anti-loosening nut, slotted closing, with nylon ring anti-loosening nut, spring washer.
Mechanical anti-loosening: stop washer, stop washer and round nut, split pin and hexagon slotted nut, tandem wire.
Load-reducing device for transverse load interception: inclined washer, boss, countersink, load-reducing sleeve, load-reducing key, and load-reducing pin.
Measures to improve the strength of the connection: add elastic parts, internal oblique nuts, hollow bolts, waist rod bolts, large fillet bolts, countersunk nuts, thread assembly and disassembly.
Key, spline and pin couplings
Key connection: ordinary flat key, semi-circle key, wedge key, guide flat key, tangential key, saddle sliding key.
Spline connection: 3 rectangular splines, 2 involute splines. Triangle spline.
Pin connection: 3 cylindrical pins, 4 conical pins, 3 guide pins, 3 safety pins, positioning, coupling, safety.
Riveting, welding, gluing and interference joints
Riveting: common types of rivets, overlaps, single butt joints, double butt joints, combined joints.
Welding: Bevel type, overlap, butt, fillet.
Bonding: board connection, pipe connection, corner connection.
Interference connection: cylindrical surface interference connection, conical surface interference connection.
Main types of belt drive
Materials and connectors for flat belts: leather belts, braided belts, rubber canvas flat belts, high-speed endless tapes, nylon sheet composite tapes, beveled joints, beveled stepped joints, joints for tapes, suture joints, leather thread joints
Structure and model of V-belt: O-type, A-type, B-type, C-type, D-type, E-type, wide V-belt, narrow V-belt, flexible V-belt, other transmission belt, joint V-belt, ordinary V-belt, double V-belt, V-ribbed belt, round belt, trapezoidal tooth timing belt.
Structure of pulley: solid wheel, spoke wheel, orifice wheel, elliptical spoke wheel, flat pulley, high-speed pulley, timing pulley.
V-belt transmission: automatic tensioning device, slide-type regular tensioning device, swing-frame regular tensioning device, tensioning wheel tensioning device.
Flat belt drive: tensioner device
Timing belt drive
Transmission chain: roller chain, inner link and sleeve, roller, outer link pin, inner link, outer link, single-pitch double-row roller chain, single-row single-pitch roller chain, spring Type, spring retaining ring, steel wire, split pin, transition link, integral sprocket with hook, integral plate type, hole plate type, toothed chain with inner guide, toothed chain with outer guide, round pin, Arrangement and tensioning of roller type, key column type, bearing type, square chain, flat top chain, round chain, chain drive.
Gear and worm drive
Gear structure: 2 gear shafts, 2 solid gears, 2 web gears, spoke gears.
Type of worm: Archimedes cylindrical worm, normal straight worm, linear toroidal worm.
Worm structure: integrated worm gear, wheel worm gear, bolted worm gear, cast worm gear, worm drive, gear drive.
Bearing bush and lining materials: bearing alloy, bronze, brass, gray cast iron, miniature bearings, rubber, nylon, tetrafluoro, phenol resin.
The structure of the oil tank has 5 pieces, and the form of the thrust bearing: solid, hollow, single ring, and multiple rings.
Structure of the sliding shaft: the whole is lined with a positive sliding bearing, a split positive sliding bearing, a split diagonal bearing,
Self-aligning sliding bearing, thrust bearing of fixed pad, self-aligning sliding bearing
Rod, hydrostatic bearing.
Inner ring, cage, outer ring, ball, short cylindrical roller, long cylindrical roller, threaded roller, tapered roller,
Drum rollers and needles.
Type and code: deep groove ball bearing, spherical ball bearing, spherical roller bearing, cylindrical roller bearing, needle roller
Bearings, spiral roller bearings, angular contact bearings, tapered roller bearings, thrust ball bearings, thrust roller bearings.
Dimension series: diameter series, inner ring fixed outer ring rotation, outer ring fixed inner ring rotation, rolling bearing installation method, rolling bearing disassembly process, inner diameter series 7 pieces, width series 4 pieces.
Rolling bearing combination design
Inner ring fixing method: spring retaining ring, shaft end pressure plate, round nut, tapered sleeve.
Method for fixing the outer ring: bearing end cover, elastic retaining ring for hole, end cover hole shoulder combination, and cup.
Combination design: 3 fixed ends, 2 fixed ends, 2 fixed ends and 2 fixed ends
Jacking and adjustment: adjustment of rolling bearings, jacking of rolling bearings.
Sealing: felt type, cup type, ring gap type, labyrinth type, thread type, bearing seat
Elastic sleeve pin coupling, elastic pin coupling, tire coupling, flange coupling, sleeve coupling, clamp coupling, gear coupling, chain coupling, cross Shaft universal coupling, slider coupling,
Shear pin safety coupling.
Teeth inlay bird rectangular, trapezoidal, regular triangular teeth, sawtooth clutch, single disc friction clutch,
Conical friction bird clutch, multi-disc friction clutch, dental safety bird clutch, centrifugal clutch, surpass
Types and applications of shafts
Rotary shaft, mandrel, transmission shaft, gear shaft, key shaft, worm shaft, crankshaft, cam shaft, soft shaft, shaft
Method for fixing parts on shaft
Key connection, spline connection, form connection, pin connection, interference connection, shaft shoulder-elastic retaining ring, shaft shoulder-round nut, shaft shoulder-double round nut, shaft shoulder-sleeve, shaft shoulder-elastic ring 2 Year, conical shaft head-shaft end retaining ring, shaft end baffle, double locking retaining ring, slotted clamping connection, hub part clamping connection, elastic sleeve connection, elastic ring connection, elastic disk connection.
Tension spring: round shackle, semi-circle shackle, eccentric round shackle, tapered closed end spring, adjustable tension spring.
Compression springs: end faces are tightened and ground springs, end faces are not tightened and ground springs, rectangular cross section compression springs,
Convex spring, concave spring, conical coil spring.
Torsion spring: outer arm torsion spring, inner arm torsion spring, center arm torsion spring, double torsion spring.
Other springs: disc springs, snake springs, flat spiral springs, leaf springs.
Parallel combination spring, in-line combination spring, conversion mechanism.
Lubrication and sealing
Lubrication device: press-fit type oil-filling cup, oil rope type cup, joint-type oil-filling oil cup, straight-through oil filling cup
Seals: 2 O-shaped rubber seals, 2 rectangular rubber seals, nylon gasket, asbestos gasket, metal flat gasket, metal octagonal gasket, metal toothed gasket, cutout: insert overlap, piston ring ,
Cutout: oblique lap, double-port type oil seal, T type oil seal, Y type oil seal, V type oil seal.
8 pieces of lubricant, oil gun, butter gun.
Failure forms of mechanical parts
Gluing, fracture, corrosion, wear, pitting, residual deformation
Involute machining gear method
2 gears by copying, gears by hob, 2 teeth by shaper, insert by rack
Gears, planing gears, shaving gears, disc grinding wheels
Classification of machine parts
Horizontal frame, door frame, vertical frame, ring frame, truss frame, frame frame, frame frame, base plate, stand frame, plate support Arrange 7 pieces, 2 reducer cases, transmission case.