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What is the tension wheel?

in order to change the tension pulley the wrap angle of the pulley or belt tension control pressure on the belt and the follower wheel. The tensioning device is a belt drive, when the center distance of the belt can not be adjusted, may be used to tension pulley belt tension.

1. The working principle of the tension wheel

is a tension pulley tensioner belt drive, when the center can not be adjusted with the pitch, can be employed with tensioning the tension pulley. Tension wheel in order to change the wrap angle of the pulley or belt tension control pressure on the belt and follower wheels, a drive belt tensioning device.
frictionally drive pulley, during installation, tape tension must. But in elongated loose after working for some time, easy to slip, must be re-tensioned. If the two drive wheels from the center can not be adjusted, it must be used to ensure the normal tension wheel drive and will not slip. Spring tension pulley or the like using an oil pressure generated in the belt tension force, such that the belt can be pressed at an appropriate pressure on the working pulley.

2. The composition structure tensioning wheel

by the tension wheel friction unit, a torsion spring, bearing, pulley member and a number of components.
(a) compressing the composition of
(b) a pivot plate spring pretension tensioner wheel tensioning spring pretension tensioner pivot plate
(c) a torsion spring biasing type tensioner pivot plate
(D) of the eccentric sleeve adjusting tensioner
a compression spring 1- 2- 3- pivot plate guide pin pivot 4-trans columns 5- 6- tension 14- tension spring wheel lock nut 7- 8- 9- timing belt reaction force of the torsion spring pin 10- 11- 12- eccentric bushing fastening stud and lock nut ball race rings 13- 15 – an elongated adjustment hole

the location of the tension pulley 3

generally the loose belt tension pulley disposed side by tension placed on the tight side of the large need, and Zhang tightening the tension pulley wheel position is also easily beating.
tensioning wheel pressure inside the loose side of the tension pulley wheel should be as close to the large, so a small pulley angle of wrapReduced too much, V such conventional belt drive device.
is on the outside of the tension pulley press the loose side. Which is subjected to reverse bend the strip, it will reduce life. Such devices commonly used in the form required to increase the wrap angle transmission or the space is limited.

4. Application of the tensioning sheave apparatus

is a tensioning sheave means for adjusting the tension pulley, it is generally used in the motor of the tensioning wheel automotive applications, as well as from the conveyor heavy machinery and other equipment within the engine. The main tension pulley from a central pulley can not be adjusted, such as V belt drive.

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