TAILIEUCHUNG - Machinery's Handbook 27th Episode 1 Part 10

Tham khảo tài liệu 'machinery's handbook 27th episode 1 part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 715 Machinery s Handbook 27th Edition ANGLES AND TAPERS Rules for Figuring Tapers Given To Find Rule The taper per foot. The taper per inch. End diameters and length of taper in inches. Large diameter and length of taper in inches and taper per foot. Small diameter and length of taper in inches and taper per foot. The taper per foot and two diameters in inches. The taper per foot. The taper per inch. The taper per foot. The taper per foot. Diameter at small end in inches Diameter at large end in inches. Distance between two given diameters in inches. Amount of taper in a certain length in inches. Divide the taper per foot by 12. Multiply the taper per inch by 12. Subtract small diameter from large divide by length of taper and multiply quotient by 12. Divide taper per foot by 12 multiply by length of taper and subtract result from large diameter. Divide taper per foot by 12 multiply by length of taper and add result to small diameter. Subtract small diameter from large divide remainder by taper per foot and multiply quotient by 12. Divide taper per foot by 12 multiply by given length of tapered part. To find angle a for given taper Tin inches per foot. A . _ j----CM-----mA I a a 2arctan T 24 Example What angle a is equivalent to a taper inches per foot a 2 X arctan 24 To find taper per foot T given angle a in degrees. T 24 tan a 2 inches per foot Example What taper T is equivalent to an angle of T 24tan 2 inches per foot To find angle a given dimensions D d and C. Let K be the difference in the disk diameters divided by twice the center distance. K D - d 2C then a 2arcsinK Example If the disk diameters d and D are 1 and inches respectively and the center distance C is 5 inches find the included angle a. K - 1 2 X 5 a 2 X To find taper T measured at right angles to a line through the disk centers given dimensions D d and distance C. Find K using the formula in the previous example then T 24K J 1-

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