tailieunhanh - Process Engineering Equipment Handbook Episode 3 Part 2

Tham khảo tài liệu 'process engineering equipment handbook episode 3 part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Power Transmission P-165 Type R . GS Type R . KGL Type L A B H R 12 13 K 315 1089 315 955 410 R 12 13 K 450 1490 450 1400 450 R 14 15 K 375 1405 375 1310 380 R 14 15 K 551 1510 550 1780 420 R 15 16 K 1425 508 1542 700 R 17 K 1599 512 1555 700 R 16 17 K 550 1855 550 1780 420 R 18 19 K 600 2200 600 1940 420 R 18 19 K 600-14 2532 600 2020 790 R 16 17 KGS 1950 230 1780 420 R 18 19 KGS 2200 220 1940 420 R 18 19 KGS-14 2531 220 2020 790 R 110 111 KGS 2840 170 2110 500 R 16 17 KGL 2160 1780 420 R 18 19 KGL 2640 2090 420 R 110 111 KGL 3025 2225 500 FIG. P-139 Generic hydrodynamic coupling types and dimensions in mm. Source J. M. Voith GmbH. P-166 Power Transmission Geared variable-speed couplings for low-speed machines Design and function. A reduction gear is located after the coupling for applications in the drives of low-speed machines. The coupling and the gear are contained in a common housing the lower part of which is designed as an oil tank. By the optional installation of a hydrodynamic retarder with favorable braking characteristics a high retardation of large masses of the connected driven machine is achieved. Speed control is carried out by changing the oil-fill of the coupling through the scoop tube that reaches into the working chamber of the coupling. The transmitted power and the speed can be controlled steplessly. See Fig. P-140. Oil supply. Working and lube oil are both supplied by the integrated oil tank however from separate circuits. The oil supply for the motor and the driven machine may also originate from this source. Performance diagram. This serves to identify the appropriate coupling types and sizes in relation to the input power and the required output speed. Coupling types. Controlling low-speed machines such as coal mills induced draught fans and crude oil pumps demands different coupling designs. Depending on the application and for optimum adaptation to existing space conditions the gear stage is either designed as helical or bevel gear. .