DYCLG-LJ Selected Mechanical Design Parts Exhibition Training Device

Release time：2024-05-16 07:00viewed：times

1. Overview: The
selected mechanical design parts display cabinet is an experimental equipment designed and manufactured according to the basic requirements of the mechanical design (parts) course. The display cabinet vividly displays and expl*ns the basic knowledge of mechanical design through mechanical part models or actual objects, combined with corresponding graphic materials, and strengthens students' perceptual understanding of the types, structural characteristics and design of general mechanical parts, and provides a basis for further learning about machinery. Design lays the foundation.
2. Technical specifications:
(1) The complete set of display cabinets consists of 18 single display cabinets. Each cabinet is equipped with a touch-controlled synchronous voice explanation system. The overall dimensions of the display cabinet are: 1200×530×1900㎜; the scale and proportion design conforms to Ergonomics requirements;
(2) The display cabinet is made of 1.0mm cold-rolled steel plate sprayed with plastic (or aluminum-wood structure). The cabinet has good rigidity and beautiful appearance; the display panel inside the cabinet is a super luxurious aluminum-plastic sandwich panel with good load-bearing capacity. Good;
(3) The upper part of the cabinet is printed with the name of the display cabinet in Chinese and English for easy identification;
(4) The top cover of the cabinet is equipped with a fluorescent lamp, which meets the ergonomic requirements;
(5) The lower part of the cabinet is equipped with a cabinet box for convenient storage of individual items. Model, experimental box and related experimental documents.
(6) The back of the cabinet is equipped with double doors, which is convenient for equipment m*ntenance and rep*r.
(7) The bottom of the cabinet is equipped with universal wheels for easy movement.
(8) The electric model is driven by micro -motor and microcontroller
. (9) The control adopts LCD screen touch control and remote control, which can be used for sequential looping and repeated playback operations. The commentary plays loudly in the 100-square-meter room.
(10) The model material is m*nly made of aluminum ingots processed and refined by CNC machine tools. The rough model must not be made using sand casting process. The model is operational.
(11) Virtual simulation teaching system
Mechanical tr*ning safety education virtual simulation software: This software is developed based on unity3d. The software adopts the form of three-dimensional roaming. Movement can be controlled by the keyboard and the lens direction can be controlled by the mouse. It is equipped with mechanical safety distance experiments and mechanical safety protection. Device experiment and basic assessment of mechanical safety protection design. When the experiment is in progress, the three-dimensional roaming screen uses arrows and footprints to prompt the user to move to the experimental location. The circle around the mechanical object shows the working radius. The experimental process is accompanied by a dialog box reminder of the three-dimensional robot.
A. The content of the mechanical safety distance experiment includes the safety distance experiment to prevent upper and lower limbs from touching the danger zone (divided into two fence heights and opening sizes). After selecting to enter, GB23821-2009 "Mechanical Safety to Prevent Upper and Lower Limbs from Touching the Danger Zone" pops up in front of the camera. "Safe Distance" requirements, error demonstration: The experimental process is that after the human body enters the working radius of the mechanical object and is injured, the red screen and voice prompts that the human body has received mechanical damage, and returns to the original position and conducts the next experiment. The last step is the correct approach.
B. Mechanical safety protection device experiments are divided into safety interlock switches, safety light curt*ns, safety mats, safety laser scanners and other protection device experiments. Optional categories (safety input, safety control, safety output, others), manufacturers, products List (safety interlock switch, safety light curt*n, safety mat, safety laser scanner, safety controller, safety relay, safety guardr*l). There is a blue flashing frame reminder at the installation location. Experimental process: select the safety guardr*l and install it, select the safety interlock switch (or select the safety light curt*n, safety mat, safety laser scanner) and install it, select the safety controller and install it in the electrical control box , select the safety relay and install it in the electrical control box, click the start button on the electrical control box. If you enter the dangerous area, the system will prompt an alarm sound and the mechanical object will stop working. Select the reset button on the electrical control box to stop.
C. The basic assessment of mechanical safety protection design requires the completion of the installation of the mechanical safety system, and the correct installation of safety guardr*ls, safety interlock switches, safety light curt*ns, safety mats, safety laser scanners, safety controllers, safety relays, 24V power supplies, signal lights and Emergency stop button, the assessment is divided into ten assessment points. Some assessment points have 3 options, which are freely chosen by the students. After selecting the final 10 assessment points, submit for confirmation, and the system will automatically obt*n the total score and the score of each assessment point. .
D. The software must be on the same platform as a whole and cannot be displayed as separate resources.
E. At the same time, we provide customers with the VR installation package of this software to facilitate users to expand into VR experiments. VR equipment and software installation and debugging are not required.
Mechanical assembly and fitter assembly virtual simulation software: This software is developed based on unity3d, with optional 6-level image quality. It is equipped with design and virtual disassembly and assembly of reducers and shafting structures, design and simulation of common mechanical mechanisms, mechanism resource library, typical machinery Mechanism (virtual disassembly and assembly of gasoline engine), the software is a whole software and cannot be individual resources.
A. Reducer design and virtual disassembly interface can choose worm gear bevel gear reducer, two-stage expanded cylindrical gear reducer, bevel cylindrical gear reducer, coaxial cylindrical gear reducer, bevel gear reducer, and one-stage cylindrical gear reducer. Gear reducer.
Worm bevel gear reducer: After entering the software, the assembly content is automatically played. Each step in the video has a text description
. Secondary expandable cylindrical gear reducer: After entering the software, the content is played in the form of a video. The video content should include: Part name ( Scan the QR code to see the names of parts), disassembly and assembly demonstration (including disassembly and assembly), virtual disassembly (including overall, low-speed shaft, medium-speed shaft, high-speed shaft, box cover, box seat)
conical cylindrical gear reducer, Coaxial cylindrical gear reducer, bevel gear reducer, first-level cylindrical gear reducer: click to enter and automatically jump to the edrawings interface. The models are all three-dimensional models. By clicking on the parts, the names of the parts are displayed, and the 360° view is av*lable Rotate, zoom in, zoom out, pan, and move parts to disassemble and assemble the entire reducer. At the same time, you can select the home button to return to the original state of the reducer. The bevel gear reducer and the first-stage cylindrical gear reducer have added the function of inserting a cross section, and the cross section can be freely dragged to observe the internal structure of the reducer.
B. Shaft structure design and virtual disassembly and assembly interface optional parts recognition, disassembly and assembly demonstration, and actual operation.
1. Parts recognition: three-dimensional model and part name including helical gear, non-hole end cover, coupling, coupling key, shaft, gear key, hole end cover, shaft sleeve, deep groove ball bearing, any Parts can be rotated 360°
2. Disassembly and assembly demonstration: There are 2 built-in cases. When you move the mouse to a cert*n part position (except the base and bearing seat), the part will automatically enlarge and the part name will be displayed. There are disassembly and assembly buttons, and the function will be automatically controlled by the software. Complete the disassembly and assembly of the shaft system structure. All three-dimensional scenes can be rotated, enlarged, reduced and translated 360° in all directions.
3. Practical operation: The three-dimensional parts are neatly placed on the table. Students manually select the corresponding parts and move them to the shaft system structure. The parts can be installed only when they are placed in the correct order and in the correct position. There is a restart button to facilitate students to restart. Conduct virtual experiments. When you move the mouse to a cert*n part location (except the base and bearing seat), the part will automatically enlarge and the part name will be displayed.
C. Common mechanical mechanism design and simulation, optional hinge four-bar mechanism design and analysis, I\II type crank rocker mechanism design and analysis, offset crank slider mechanism design and analysis, crank swing guide rod mechanism design and analysis, hinge Four-bar mechanism with integrated trajectory, eccentric linear-acting roller push rod cam , and centering linear-acting flat-bottomed push rod cam.
1. Each mechanism should be able to input corresponding parameters, and the software can automatically calculate the parameters, and can perform motion simulation and automatically draw curves.
D. The mechanism resource library includes 11 types of planar link mechanisms, 5 types of cam mechanisms, 6 types of gear mechanisms, 8 types of transmission mechanisms, 11 types of tightening mechanisms, 6 types of gear tr*n mechanisms, and 8 types of other mechanisms (mechanical equipment simulation)
E , virtual disassembly and assembly of gasoline engines, optional crankcase assembly and disassembly demonstration, crankcase virtual assembly, valve tr*n assembly and disassembly demonstration, valve tr*n virtual assembly
1. Crankcase assembly and disassembly demonstration and valve tr*n assembly and disassembly demonstration both have disassembly button, assembly button, restart, and decomposition observation button. When the mouse is moved to a cert*n part position, the part will automatically enlarge and the part name will be displayed. The software automatically completes the disassembly and assembly of the shaft system structure. When using the decomposition observation button, the 3D model of the crankcase or gas distribution system automatically displays an exploded view, which can be rotated, enlarged, reduced, and translated 360°.
2. The 3D parts of the crankcase virtual assembly and the gas distribution system virtual assembly are neatly arranged When placed on the desktop, students manually select the corresponding parts and move them to the mechanism. The parts can be installed only when they are placed in the correct order and in the correct position. There is a restart button to facilitate students to re-perform the virtual experiment. When you move the mouse to cert*n part locations, the part names are automatically displayed.
3. This display cabinet has the following characteristics:
(1) Advanced design concept. According to the needs of the teaching reform of basic mechanical courses, the display cabinet is optimized and designed in accordance with the basic concepts of "shaping physical teaching materials, creating a practical environment and promoting students' independent cognition, so as to integrate the trinity of "knowledge, cognition and thinking" to support course understanding. The establishment of experiments promotes the construction of quality courses.
(2) Comprehensive display content. This showcase is based on national planning textbooks and provides a comprehensive display of mechanical design course content, including mechanical connections, mechanical transmission, shafting components, Lubrication and sealing, etc., provide rich mechanical design knowledge and are compatible with different versions of the same name textbook;
(3) The display cabinet is designed and manufactured according to the national mechanical standards and display cabinet enterprise standards, and the production process is advanced. The product has stable quality, reliable performance and long service life;
(4) Green design. The display cabinet is made of environmentally friendly materials and has no noise in mechanical operation; it is safe to use and has a pleasant design; it can adapt to the requirements of modern green laboratories .
4. , Basic parameters and configuration of the equipment:

serial number	Showcase display content det*ls
1. Type of threaded connection	A. Types of threads (10 types) Coarse thread, ordinary thread, fine thread, ordinary thread, cylindrical pipe thread, conical thread, conical pipe thread, rectangular thread, trapezoidal thread, zigzag thread, left-hand and right-hand thread B. Basic types, pictures of m*n parameters C. Basic thread connection Types (8 types) ordinary bolt connection, double-headed stud connection, screw connection, set screw connection, eye screw connection, T-slot screw connection, anchor screw connection, matching bolt connection standard connection parts (24 pieces) on the photo ( 27 pieces) Hex head bolts, bolts, screws, set screws, self-tapping screws, hex nuts, round nuts, stop washers, bevel washers, washers
2. Application of threaded connection	A. Threaded connection applications (3 pieces) opening and closing nuts, vise (actual), screw jack B. Threaded connection anti-loosening (10 pieces) counter nuts, self-locking nuts, spring washers, cotter pins and slotted nuts , stop washer, gasket, series steel wire, series steel wire (wrong), punch point, end rivet C, threaded connection preload (2 pieces) torque measuring wrench, fixed torque wrench D, strength improvement measures (12 pieces) all Nut-loaded structure, spherical washer, wst bolt, hollow bolt, suspension nut, cylinder sealing components: soft gasket seal, sealing ring seal, spring washer, wst ring bolt connection
3. Key, spline and keyless connection	A. Key connection types (11 pieces) and pictures (fine-tooth spline) Ordinary flat key connection: round head flat key, square head flat key, semi-round head flat key guide flat key connection, sliding key connection, semi-round key connection wedge key Connection: round head wedge key, square head wedge key, hook head wedge key, tangential key connection B, spline connection type (3 pieces) rectangular spline connection involute spline connection triangle spline connection C, keyless connection type (2 pieces) Profile connection (1) Profile connection (2) D. Pin connection type (10 pieces) safety pin, connection pin, screw taper pin (taper pin with thread at the end), open tl taper pin pin type Parts (standard parts) (cylindrical pins, tapered pins, screw-tled tapered pins, internally threaded tapered pins, grooved pins, cotter pins)
4. Riveting, welding, gluing and interference fit connection	A. Riveting (10 pieces) lap joints, single cover butt joints, double cover butt joints, commonly used rivet types after riveting Welding (5 pieces) front fillet welds, lap fillet welds , butt welds, plug welds, edge welds C, glued joints (15 pieces) plate joints, cylindrical joints, corner joints, tapered and blind hole joints D, interference fit connections (4 pieces) press fit connections , structure of press-fit components, crankshaft press-fit assembly, gear press-fit connection
5. Belt drive	A. Belt drive type (4 pieces) flat belt drive V-belt drive synchronous belt drive staggered shaft drive B. Belt type (9 pieces) O, A, B, C, D synchronous, flat belt, V-joint, multi-wedge Belt C. Pulley structure (4 pieces) Solid V-belt pulley Web type V-belt pulley Hole plate type V-belt pulley spoke type V-belt pulley D. Tensioning device (3 pieces) Regular tensioning, self-weight type automatic Tensioning, tensioning wheel tensioning
6. Ch*n drive	A. Chn drive components (1 piece) chn, driving sprocket, driven sprocket B. Chn drive motion characteristics polygon effect model C. Sprocket structure (4 pieces) integral sprocket, orifice sprocket, and ring gear welding Type sprocket, ring gear screw-connected sprocket D. Transmission chn type (4 pieces) Single-row roller chn Double-row roller chn toothed chn E. Chn drive tensioning device (3 pieces) The tensioning wheel is regularly adjusted and tensioned Automatic tensioning of tension wheel, pressure plate and pallet tensioning
7. Gear transmission	A. Basic types of gear transmission (6 pieces) spur gear transmission, helical gear transmission, herringbone gear transmission, rack and pinion transmission, spur bevel gear transmission, curved bevel gear transmission B. Gear tooth f*lure modes (5 types) teeth Surface pitting, gear tooth breakage, tooth surface gluing, tooth surface wear, plastic deformation C. Gear tooth stress analysis (3 pieces) Spur gear transmission stress analysis Helical gear transmission stress analysis bevel gear transmission D. Gear Structure (5 pieces) Gear shaft Solid gear Web type structure Reinforced web type structure Spoke type gear
8. Worm drive	A. Worm transmission type (3 pieces) Ordinary cylindrical worm drive, arc worm drive, bevel worm drive, multi-head worm B. Worm gear structure (4 pieces) ring gear worm gear, integral cast worm gear, bolted worm gear, split-cast worm gear C. Worm structure (2 pieces) worm with undercut and worm without undercut D. Stress analysis (2 pieces) Worm gear stress analysis, worm stress analysis
9. Rolling bearing types	A. M*n types of rolling bearings (10 pieces) spherical ball bearings, spherical roller bearings, tapered roller bearings, one-way thrust ball bearings, two-way thrust ball bearings, deep groove ball bearings, angular contact ball bearings, thrust cylindrical rollers Bearings, cylindrical roller bearings, needle roller bearings. B. Bearing code table C. Comparison of diameter and width series (2 pieces) Comparison of diameter series Comparison of width series D. Rolling bearing structure Actual bearing structure, outer ring, rolling element, cage, inner ring
10. Sliding bearings	A. Centripetal sliding bearings (5 pieces) split sliding bearings, integral sliding bearings, multi-oil wedge bearings, sliding bearings with sleeves, tilting bearings B. Push sliding bearings (4 pieces) solid type, single ring Type, hollow type, multi-ring type C. Bearing structure (3 pieces) Integral type, split type, bimetal bearing D. Working condition of dynamic pressure bearing (picture)
11. Design of rolling bearing device	A. Bearing fastening (picture) B. Typical structure of bearing device (6 pieces) spur gear bearing parts, helical gear bearing parts, small bevel gear bearing parts (front and reverse installation), worm bearing parts (fixed at both ends), worm Bearing components (one end is fixed and the other is swimming), herringbone gear bearing component C, bearing preload (picture)
12. Coupling	A. Rigid coupling (2 pieces) sleeve type coupling, flange type coupling B. Flexible coupling without elastic element (4 pieces) cross slide coupling, double universal coupling, Gear coupling, sprocket coupling C, non-metal elastic element flexible coupling (4 pieces) tire coupling, star elastic coupling, plum blossom coupling, elastic sleeve pin coupling device
13. Clutch	A. Mechanically operated clutch (5 pieces) tooth clutch, tooth clutch, single-disc friction clutch, multi-disc friction clutch, cone friction clutch B. Automatic clutch (3 pieces) overrunning clutch, brake block centrifugal clutch, ball safety clutch
14. Analysis and design of shafts	A. Type of shaft (5 pieces) smooth shaft, stepped shaft, hollow shaft, crankshaft, steel wire flexible shaft B. Positioning of parts on the shaft (4 pieces) sleeve round nut compression, set screw fixation, spring ret*ning ring positioning, Conical shaft end positioning C, shaft structural design (4 pieces) model of the first, second and third steps
15. Spring	A. Spring types (10 categories) variable pitch compression springs, circular cross-section compression springs, tension springs, torsion springs, single-ear leaf springs, conical spiral springs, disc springs, plane vortex springs, annular springs, rubber springs B. Spring classification Figure C, spring application examples (4 pieces) disc springs, clock springs, automobile shock absorber springs, combined compression springs D, cylindrical coil springs (8 pieces) LⅠ type, LⅡ type, LⅢ type, LⅣ type, LⅤ type , LⅥ type, LⅦ type, LⅧ type (a total of 8 physical objects) E. Other types of springs (4 pieces) NⅠ type, NⅡ type, NⅢ type, NⅣ type
16. Reducer	A. Reducer type and structure (4 units) single-stage cylindrical gear reducer, single-stage bevel gear reducer, single-stage worm gear reducer, double-stage cylindrical gear reducer B. Reducer accessories (8 pieces) Lifting ear hook, oil mark, lifting ring, cover screw, pin, breather, screw plug, sight hole and sight hole cover C, accessories list
17. Lubrication and sealing	A. Oil cups for lubrication (5 pieces) str*ght-through pressure oil cups, screw-cap oil cups, press-fit pressure oil cups, spring cover oil cups, needle valve type glass oil cups B. Sealing applications (2 pieces) O Shape sealing ring application, Y-shape sealing ring C, standard seals (6 pieces) O-shape sealing ring, J-shape sealing ring, U-shape sealing ring, sealing ring for YX hole, sealing ring for YX shaft, dust ring seal D , contact seal (4 pieces) felt ring oil seal, lip seal ring seal, rubber seal E, non-contact seal (3 pieces) gap seal, sealing ring seal, curved road seal
18. Small mechanical structure design examples	A. Small machinery (9 units) electric scissors, electric planer, juicer, household dough press, grinder, table fan, engraving machine, angle grinder, electric hand drill

Note: The glass on the cabinet is fragile and must be provided by the purchaser;

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