4B Touchswitch Руководство по эксплуатации - Страница 8

Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Аксессуары 4B Touchswitch. 4B Touchswitch 20 страниц. Belt misalignment sensor

Image A

57mm Diameter

Hole Saw

When mounting on the head section of a leg or belt conveyor try to catch the belt and the pulley. On a

leg, mount the Touchswitch™ above the center line of the head shaft on the discharge side of the pulley

when possible. Sometimes this is not possible due to an inspection door, X-PAC or other obstruction.

In this case, the Touchswitch™ can be mounted on the top or up side of the head pulley. Try to mount

Touchswitches so they are accessible from the head section walkway. Be sure to mount Touchswitches

directly across from one another. On a conveyor head section mount the Touchswitch™ forward of the

head shaft in order to monitor for misalignment on the head pulley and belt. For typical mounting positions

on a bucket elevator, see illustrations on pages 10 - 13.

On a leg boot, mount the Touchswitch™ on the up side of the tail pulley if there are no obstructions. If

obstructions are encountered, use the down side of the pulley, but be sure to have the Touchswitches

mounted directly across from one another. Mount the Touchswitch™ above the center line of the boot

shaft at the shaft's highest possible position (see illustration - page 13). You may not be able to catch the

leg boot pulley in all positions with a Touchswitch™. If desired, you can install additional Touchswitches™

along the travel of the boot pulley.

When mounting Touchswitches on open belt conveyors, brackets will usually need to be fabricated. These

brackets must be built rigid enough to take pressure from a misaligned belt. It is best if these can be

mounted so the Touchswitch™ can detect if the pulley and or the belt has shifted. On tail pulleys of open

belts that are take-up pulleys, it is good if the Touchswitch™ bracket can be mounted off of the bearing

mounting bolts. This will allow the Touchswitch™ to move with the pulley when belt adjustments are

made. For typical mounting positions on an open belt conveyor, see illustration - page 14.

On enclosed belt conveyor tail sections, mount Touchswitches to catch the top side of the belt on the

vertical angle just ahead of tail pulley. You will not be able to catch the tail pulley with a Touchswitch™

on an enclosed belt conveyor due to the flippers on the pulley. 4B recommends that some other device

be installed to catch the tail pulley, such as a surface mount temperature sensor (WDB70V3CAI). When

installing Touchswitches on the tail section, some tail adjustment will be sacrificed. For typical mounting

positions on an enclosed belt conveyor, see illustration - page 15.

If / when connecting liquid tight conduit to Touchswitches, limit the length to local installation requirements.

However, when installed on an adjustable pulley or section be certain enough conduit is installed to allow

for pulley adjustments.

Belt

PAGE 8

Pulley

Image B

Proper Hole

Position for

Mounting

Touchswitch™