subject: Introduction to a line shaft [print this page] Introduction to a line shaft Introduction to a line shaft
The industry revolution has kept improving industrial process, as well as our daily life. It should be mentioned that the line shaft has kept playing an important role. It is a kind of power transmission system which is extensively. Prior to the widespread use of electric motors, line shafts are popular with the specifications to distribute power from a large central power source to machinery throughout an industrial complex. The distributed powers are commonly a water wheel power, a stationary steam engine or a steam traction engine. The first true came of line shafts is in the early 19th century with industrialization and manufacturing. At that moment, they are generally employed in manufacturing, woodworking shops and saw mills and so on. Since the wide availability of electrical motors, the applications of line shafts continue to be popular in many fields. A deep look at its operation is taken here for further study on shafts.
It is expected the shaft can be suspended from the ceiling of one area and would run the length of that area. Generally speaking, a typical line shaft holds some pulleys. The pulleys determine a lot. One pulley would receive the power from the shaft. Then, other pulleys supply power to each individual machine or some subsequent line shafts. It should be mentioned that the machines include are with the same tasks. And for the system with a variety of machines holding different orientations and power requirements, it is not applicable. And the general placement is horizontal, occasionally vertical. They are usually made of rigid, containing several parts bolted together at flanges.
The power of line shafts is firstly transmitted between pulleys using loops of rope on grooved pulleys. For example, the flat belts on flat pulleys in 19th and early 20th century. And the pulleys were constructed of wood, iron, steel or a combination thereof. There are a wide range of sizes for pulleys used in conjunction to change the speed of rotation. Pulleys solidly attached to the shaft could be combined with adjacent pulleys that turned freely on the shaft. Apart from the belts and pulleys, occasionally, gears were used between shafts to change speed, but this seems to have been relatively uncommon.
Though with the advanced technologies, line shafts are still playing an important role in many fields. And it is certain that in many systems, the line shafts are greatly improving the industrial efficiency.
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