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Solidworks Exercise 1

01-a rod support-solidworks design

Solidworks Exercise 201-a shaft support - solidworks drawing

Solidworks Exercise 301-rod support - solidworks edrawings


Solidworks Exercise 401-shaft support - solidworks exercises

Solidworks Exercise 5

01-vertical shaft support - solidworks drafting

Rod / Shaft Support:

Shafts, too, are a basic, important and very common machine element. A shaft is usually designed to perform a specific task in a specific machine. In general, a rotating member used for the transmission of power is called shaft. A shaft known variously as a DRIVESHAFT, TAILSHAFT or CARDAN SHAFT (and sometimes as a JACK SHAFT). It is used to transmit power and torque from the rear of an automotive gearbox (on the left) to the input shaft of the differential, which is known as the PINION SHAFT (on the right).

E.g. Gears must be mounted on some sort of shaft, and a gate valve or globe valve is opened and closed by a hand-wheel turning another type of shaft often referred to as a spindle.

Different types of shafts are:

Stub shaft – A shaft which is integral with an engine, motor or prime mover and is of suitable size, shape and projection to allow its easy connection to other shafts.

Ex.: It allows a power-transmission device such as a belt pulley to be fitted to drive an external machine.

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Line shaft (or power transmission shaft) – A shaft connected to a prime mover which transmits power to a number of machines – now mostly superseded by machines having individual motors.

Ex.:  The overhead LINE SHAFT ran continuously and individual machines could be stopped only by moving the flat drive belts from the driving pulley onto a free-running pulley. Note the largely timber construction of the building, allowing significant flexing of the structures under load.

Jack shaft – A short shaft used to connect a prime mover to a machine or another shaft. May also be a short shaft placed as an intermediate shaft between a prime mover and driven machine.

Ex.: Speed Reduction similar to gear drives.

Flexible shaft – Permits the transmission of power between two shafts (e.g. motor shaft and machine shaft) whose rotational axes are at an angle or where the angle between the shafts may change.

Ex.: Japanese style backpack mower with flexible shaft between the red power pack and the usual hand-held mower assembly. In general, flexible shafts are not used to transmit high powers or high speed.

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Most shafts are made from steel, either low- or medium-carbon. However, high quality alloy steel, usually heat treated, may be chosen for critical applications. Small, light-duty shafts, e.g. in household appliances, may be injection moulded in a plastic material such as nylon or derlin. Other metals, e.g. brass, stainless steel or aluminium, may be used where corrosion is a problem or lightness is required.

The suspension of copper tubing presents a challenging problem in corrosion. If local corrosion conditions are severe due to acid fumes, extreme humidity, etc., copper plated steel is not satisfactory and special materials must be used. The threat of galvanic corrosion is mitigated. No electrical continuity between the pipe and support beam.

These flanged support blocks are specially developed for securing the shaft at right angles to the mounting surface. This Flanged supports made of spheroidal graphite cast iron with flanged liner sets.

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