The diagram shows a stepped-cone pulley system used on some pillar drills. The belt is arranged on the four different steps of the cone pulley to obtain different speeds. The cone pulley has four steps (A, B, C & D). Another cone pulley having four steps (E, F, G and H) is placed parallel to the spindle cone pulley. Both the cone pulleys are connected by a flat or V belt. The belt can be arranged between the steps "A & H", "B & G", "C & F" and "D & E". The cone pulley at the bottom is connected to the electric motor by a V-belt. (Lower pulley is the driver pulley, and the upper pulley is the driven pulley). The diameters of the pulleys are given in the following table. Spindle Step coue pulley belt pulley Pnos dais *v belt- Electric motor

The diagram shows a stepped-cone pulley system used on some pillar drills. The belt is arranged on the four different steps of the cone pulley to obtain different speeds. The cone pulley has four steps (A, B, C & D). Another cone pulley having four steps (E, F, G and H) is placed parallel to the spindle cone pulley. Both the cone pulleys are connected by a flat or V belt. The belt can be arranged between the steps "A & H", "B & G", "C & F" and "D & E". The cone pulley at the bottom is connected to the electric motor by a V-belt. (Lower pulley is the driver pulley, and the upper pulley is the driven pulley). The diameters of the pulleys are given in the following table. Spindle Step coue pulley belt pulley Pnos dais *v belt- Electric motor

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter8: Computer Numerical Control

Section8.1: Cnc Basics

Problem 3RQ: Briefly describe a ball screw and a linear guide.

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Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

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The diagram shows a stepped-cone pulley system used on some pillar drills. The belt is arranged on the four different steps of the cone pulley to obtain different speeds. The cone pulley has four steps (A, B, C & D). Another cone pulley having four steps (E, F, G and H) is placed parallel to the spindle cone pulley. Both the cone pulleys are connected by a flat or V belt. The belt can be arranged between the steps “A & H”, “B & G”, “C & F” and “D & E”. The cone pulley at the bottom is connected to the electric motor by a V-belt. (Lower pulley is the driver pulley, and the upper pulley is the driven pulley). The diameters of the pulleys are given in the following table.

Name of the Driven
Diameter of the Driven
Name of the
Diameter of the Driver
Pulley
Pulley (mm)
Pulley (mm)
Driver Pulley
A
20
E
40
40
F
60
C
60
G
80
80
100
If the drive motor runs at 150 rpm, what is the difference between maximum and minimum drill speeds?

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