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PAES 303:2000 Agricultural Machinery Engineering

8 Questions

3 Views

PAES 303:2000 Agricultural Machinery Engineering

Created by

@SmoothestBanjo

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Questions and Answers

What is the primary purpose of roller chains in agricultural machinery?

To reduce noise levels

To transmit power at high torque and low speed without slippage (correct)

To decrease the weight of the machine

To increase the speed of the machine

What is the distance between adjacent joint members of a chain, called?

Outside diameter

Pitch diameter

Chain diameter

Chain pitch (correct)

It is the diameter of the pitch circle that passes through the centers of the link pins as the chain is wrapped on the sprocket.

Caliper diameter

Pitch diameter (correct)

Outside diameter

Bottom diameter

For a sprocket with an odd number of teeth, what is the distance from the bottom of the tooth gap to that of the nearest opposite tooth gap?

Caliper diameter Signup and view all the answers

What is the diameter of a circle tangent to the curve at the bottom of the tooth gap?

Bottom diameter Signup and view all the answers

It is the diameter over the tips of the teeth

Outside diameter Signup and view all the answers

What type of chain is shown in Figure 1?

Multiple-strand chain Signup and view all the answers

What is the purpose of the normative reference PAES 304:2000?

To provide provisions for keys and keyways for agricultural machines Signup and view all the answers

Study Notes

Scope and Application

Establishes specifications and provides technical information for the proper application of roller chains and sprockets for drives in agricultural machinery.
Roller chains are used to transmit power at high torque and low speed without slippage.

Definitions

Chain pitch: distance between adjacent joint members.
Pitch diameter: diameter of the pitch circle that passes through the centers of the link pins as the chain is wrapped on the sprocket.
Bottom diameter: diameter of a circle tangent to the curve (called the seating curve) at the bottom of the tooth gap.
Caliper diameter: for a sprocket with an odd number of teeth, it is the distance from the bottom of the tooth gap to that of the nearest opposite tooth gap.
Outside diameter: diameter over the tips of the teeth.

Chains

Classified into single-strand and multiple-strand chains.
Dimensions of chains are given in Table 1.
Different types of links are shown in Figure 3.

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Description

This quiz covers the specifications and technical information for roller chains and sprockets in agricultural machinery, as outlined in the PAES 303:2000 standard.