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Anglicky v odborných předmětech "Support of teaching technical subjects in English “. Tutorial : Engineering technology Topic : Shaft pins Prepared by: Ing. Jaroslav Hábl. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002

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anglicky v odborn ch p edm tech support of teaching technical subjects in english

Anglicky v odborných předmětech"Support ofteachingtechnicalsubjects in English“

Tutorial: Engineeringtechnology

Topic:Shaft pins

Prepared by: Ing. Jaroslav Hábl

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002

je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

shaft pins

Shaft pins are components of shafts which are immovably fixed to the machine frame or they facilitate shaft rotation.

Types of shaft pins

Basic division of shaft pins is in their loading.

According to the loading direction, shaft pins divide into 2 groups:

Radial pins.

b) Axial pins.

Pins further divides in accordance with their functions and shapes into these basic groups.

Shaft pins
shaft radial pins

Radial shaft pins are mostly stressed by vertical force to pin axis. Some radial pins are able to transmit partially loading in direction of its own axis.

Types of radial pins:

  • - Cylindrical.
  • - Frontal – used at shaft end
  • - Neck – used for overhanging shaft ends or for shaft fitting to more supports
  • - Conical – absorb smaller axial loading in one direction.
  • Ball-shaped – used for small pressures and small speeds, enable tilting in 3 axis.

Frontal

Cylindrical neck

Conical

Ball-shaped

SHAFT RADIAL PINS
radial shaft pins calculation

Radial shaft pin is strained to bending and to compression. There are used common strength equations for the calculation.

Bending:

RADIAL SHAFT PINS CALCULATION

Compression:

axial shaft pins

Axial shaft pins intercept forces having some effect in pin axis direction. Some types are able to transmit lower radial loading.

Types of axial pins:

  • - Base.
  • - cylindrical
  • - conical
  • - ball-shaped
  • - Ring-shaped.
  • - Ridge-shaped.

Cylindrical

Conical

Ball-shaped

Ring-shaped

Ridge-shaped

AXIAL SHAFT PINS
axial shaft pins calculation

Axial shaft pins are strained to bending of axial pressure and to compression. Bending stress of axial forces is insignificant therefore calculation is limited to check contact surface force.

Force on contact surface:

AXIAL SHAFT PINSCALCULATION
literature
Literature
  • Stroje a zařízení I, J. Doleček, P. Gajdoš, V. Novák
  • Strojnictví I, J. Doleček, Z. Holoubek
  • Strojnictví II, J. Doleček, Z. Holoubek
  • Moderní strojírenství, Josef Dillinger a kolektiv
slide8

Describe the division of shaft pins.

  • What are shaft pins used to.
  • How are radial shaft pins stressed.