A shaft is a rotating machine element which is used to transmit power from one place to another .
the power is a delivered to the shaft by some tangential force and the resultant torque set up within the permits the power to be transformed to various machine linked up to the shaft .In order to transfer the power from one shaft to another the various members such as pulleys gears etc. are mounted on it . Theses member along with the forces exerted upon them causes the shaft to bending .In order words ,we may say that a shaft is used for the transmission of torque and bending moment.The various member of torque and bending moment .The various member are mounted on the shaft by means of keys or splines.
MATERIAL USED IN FOR SHAFT
1.It should have high strength.
2.It should have a good machinability.
3.It should have low notch sensitivity factor.
4.It should have good heat treatment properties.
5.It should have high wear resistant properties.
MANUFACTURING OF SHAFT
shaft are generally manufactured by hot rolling .The cold rolled shaft are stronger then hot rolled shaft but with higher residual stresses.
TYPES OF SHAFT
1.Transmission shaft :-The shaft transmit power between the source and the machines absorbing power.
2.Machine shaft:- These shaft form an integral part of the machine itself .The crank shaft is an example of machine shaft.
STRESSES IN SHAFT
1.Shear stresses due to the transmission of torque.
2.Bending stresses due to the forces acting upon machine elements like gears,pulleys etc.
3.Stresses due to combined torsional and bending loads.
the power is a delivered to the shaft by some tangential force and the resultant torque set up within the permits the power to be transformed to various machine linked up to the shaft .In order to transfer the power from one shaft to another the various members such as pulleys gears etc. are mounted on it . Theses member along with the forces exerted upon them causes the shaft to bending .In order words ,we may say that a shaft is used for the transmission of torque and bending moment.The various member of torque and bending moment .The various member are mounted on the shaft by means of keys or splines.
MATERIAL USED IN FOR SHAFT
1.It should have high strength.
2.It should have a good machinability.
3.It should have low notch sensitivity factor.
4.It should have good heat treatment properties.
5.It should have high wear resistant properties.
MANUFACTURING OF SHAFT
shaft are generally manufactured by hot rolling .The cold rolled shaft are stronger then hot rolled shaft but with higher residual stresses.
TYPES OF SHAFT
1.Transmission shaft :-The shaft transmit power between the source and the machines absorbing power.
2.Machine shaft:- These shaft form an integral part of the machine itself .The crank shaft is an example of machine shaft.
STRESSES IN SHAFT
1.Shear stresses due to the transmission of torque.
2.Bending stresses due to the forces acting upon machine elements like gears,pulleys etc.
3.Stresses due to combined torsional and bending loads.
0 Comments:
Post a Comment
Thank you for the comment