Couplings , Clutches and Brakes

Couplings , Clutches and Brakes

1. SHANKERSINH VAGHELA BAPU INSTITUTE OF TECHNOLOGY

2. Presented by 1 YATIN DESAI LAKSHMI VIMAL KISHAN PATEL SHREY PATEL SAGRIKA MAURYA YASHPALSINH VAGHELA

3. Couplings , Clutches and Brakes Coupling and clutches are power transmission elements . Coupling is Used for transmitting power from one shaft to another shaft. The break is a fractional device whose primary function is to control the motion of machine member. Break is device used to bring machine member Into rest or slow down.

4. Couplings A coupling is a device used to connect two shaft Shaft are mostly available for 7 meters length due to transport difficultly. To get a greater length , it is necessary to joint two or more pieces of the shaft using coupling.

5. Types of couplings Rigid coupling Flexible Coupling

6. Rigid coupling It is used to connect two shafts which are perfectly in axial Alignment . There are basic three types of rigid coupling as follows Sleeve or muff coupling Clamp or split muff Flange coupling

7. Sleeve or muff coupling

8. B. Clamp or split muff

9. C. Flange coupling

10. 2.Flexible Coupling This coupling is used to protect the driven and driven machine members again effect produce due to misalignment of shaft , vibration , sudden shock load or shaft expansion. There are basic three types of flexible coupling Bushed pin type flange coupling Universal Coupling Oldham coupling

11. Bushed pin type flange coupling

12. B. Universal Coupling

13. C. Oldham coupling

14. Clutches Clutches is device which facilitate engage and disengage of driving shaft and driven shaft whenever required .There are Two types of Mechanical Clutches Friction Clutches Positive contact clutches

15. Friction Clutches A friction clutches is used to transmission of power between two machines shafts which may be required to stop or start frequently . In automobile ,friction clutches is used to connect the engine to the driven shaft . In operation such a clutch , care should taken so that the friction surface engage easily and gradually brings the driven to proper speed.

16. Types of Friction clutches Disc clutch Cone clutch Centrifugal clutch

17. A. Disc clutch

18. B. Cone Clutch

19. C. Centrifugal clutch

20. Positive contact clutch This type of clutch engaged or disengaged without slip. Therefore it known as positive contact clutch. This clutch is not suitable where gradual engagement and disengagement is required without stopping the driving shaft.

21. Jaw clutch ( Positive contact clutch )

22. Brakes A brake is a mechanical device which produces frictional resistance against moving machine member , in order to slow or stop the motion of machine. There are four types of brake. Block brake Band brake Internal expanding shoe brake Disc brake

23. A. Block brake

24. B. Band Brake

25. C . Internal Expanding shoe brake

26. D. Disc brake

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