Double block brake is a type of - Theory of Machines - 1

Q.  Double block brake is a type of
- Published on 06 Aug 15

a. Band brake
b. Internal expanding shoe brake
c. Shoe brake
d. None of the above

ANSWER: Shoe brake
 

    Discussion

  • Sravanthi   -Posted on 19 Oct 15
    - The device used to retard or stop a moving object by means of an artificial frictional resistance is called as brake.

    - Brakes based on configurations are classified as shown below:

    1) Shoe or block brake
    2) Band and block brake
    3) Band brake
    4) Internal expanding shoe brake

    Double block brake, pivoted block brake, single block brake are different types of shoe brakes.

    Double block brake

    - Double block brake prevents bending of shaft caused due to unbalanced load of single block brake.

    - Braking torque is calculated considering the braking force acting on two blocks.

    - The brake geometry of theses brakes do not self lock.

    - Generally this type of brakes are used in electric cranes.

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