QUESTIONS FOR SELF-TESTS

1. What types of connections do you know?

2. What connections are detachable?

3. What parameters determine the thread?

4. Which connections are threaded?

5. What are the signs of thread classification?

6. What standard thread do you know? How are they conventionally denoted?

7. As shown in the drawing, the thread on the rod; in the hole; in the connection of the rod with a hole?

8. How are the threads on the drawings?

9. What do you know standard threaded products?

10. What is the symbol on the drawing bolts, studs, nuts, washers?

11. What kind of screws do you know?

12. What thread is cut in the connecting parts of pipelines?

13. What sizes are put on the bolt, hairpin and screw connections?

14. How is keyed connection? What conventions do you need to do?

15. What conventions exist for the image of a spline joint?

16. What types of permanent connections do you know?

17. How is the weld conditionally designated in the drawing?

18. What conventions and simplifications are allowed in the designation of welds?

19. How are riveted seams represented on the drawing?

20. How are brazed seams indicated on the drawing?

21. How are glued seams shown on the drawing?

22. What connections belong to special connections of parts?

23. What are the types of gears?

24. What are the main parameters of a gear?

25. What lines draw circles and forming surfaces of the protrusions of the teeth; the circumference and the forming surfaces of the teeth of the gear teeth?

26. What types of springs do you know?

27. What conventions apply when drawing springs?

Types of connections of parts: threaded, welded, riveted, glued, keyed, splined.

Detachable connections: threaded (bolts, nuts), pin, keyed.

Thread parameters: pitch, diameter, profile, lead angle.

Threaded connections: bolts, screws, nuts, studs.

Thread classification: by profile (triangular, trapezoidal), by direction (right, left), by purpose (fastening, running).

Standard threads: metric (M), inch (UNC, UNF), pipe (G, Rc).

Thread image on the drawing: on the rod - in the form of parallel lines, in the hole - as a spiral, in the connection - a combined image.

Thread designation: letter designation indicating the diameter and pitch (for example, M10x1.5).

Standard threaded products: bolts, screws, studs, nuts.

Conventional designation of bolt, stud, nut, washer: Bolt - M10x1.5, Stud - M10x1.5, Nut - M10, Washer - 10.

Types of screws: with cylindrical head, countersunk head, semi-countersunk head, set screws.

Threads in pipelines: pipe thread (G, Rc).

Dimensions on drawings: diameter, thread length, thread pitch.

Keyed connection: shown with the key and seats indicated. Conventions - solid lines for the key and dashed lines for the groove.

Splined connection: shown with spline lines and their seats. Conventions - dashed and solid lines.

Permanent joints: welded, riveted, soldered, glued.

Welded seam on the drawing: conventionally designated by a weld line indicating the type of seam and its dimensions.

Simplifications in welded seams: it is permissible not to indicate the dimensions of the seams if they are standard.

Riveted seams on the drawing: are depicted as dots or crosses on the connection lines.

Soldered seams: are designated similarly to welded seams, indicating the type of solder.

Glued seams: are designated by lines indicating the area of ​​application of the glue.

Special joints: magnetic, vacuum, high-temperature.

Types of gear transmissions: spur, helical, herringbone, worm, bevel, planetary.

Main parameters of the gear wheel: module, number of teeth, pitch circle diameter, tooth profile angle.

Lines for circles and tooth surfaces: solid lines for protrusions, dashed lines for depressions.

Types of springs: cylindrical, conical, disc, torsion.

Conventions when drawing springs: spring coils are depicted as solid lines, spring axes are dashed.