Structural characteristics of TLA friction plate torque limiter

1. A torque limiter (also known as a torque limiter or torque limiter) is a protective device When the required torque exceeds the set value due to machine load vibration, overload or mechanical failure, it limits the transmission torque in a sliding manner, and automatically recovers after the overload situation disappears, without the need for further setting Torque limiters prevent mechanical damage and avoid costly downtime losses
2. The torque limiter adopts a spring loaded friction surface Adjust the spring force with nuts or bolts Preset its sliding torque
3. The torque limiter can use sprockets, gears, pulleys, or flanges as central components The friction plate is a dry friction plate that does not contain asbestos and is rust proof. It can be used in explosion-proof situations and has good wear resistance and long service life The middle sliding sleeve does not require lubrication The Bosen brand torque limiter is different from the scissor type machinery, which needs to be invalidated after one use and can be reused  

selection method
1. The required sliding torque is determined by the load conditions or the design strength of the machine If the load conditions of the machine are uncertain, set the sliding torque of the torque limiter to 1.5 to 2 times the torque generated by the motor related to its installation shaft
2. Please select a torque limiter with sufficient torque range and inner diameter range The correct shaft sleeve length is determined by the thickness of the central component located between the friction plates The selection of shaft sleeve cannot exceed the width of the central component, and the maximum thickness of the central component is shown in the table (maximum) values  

Setting of torque
1. The torque setting of the torque limiter only requires tightening or loosening the adjusting bolt (adjusting nut)
2. After installing the torque limiter on the shaft, torque adjustment can be performed, and the steps are as follows:
TLA127 to TLA508 models:
Firstly, turn the nut to secure the disc spring to one piece, and then twist each adjusting bolt 60 °
Secondly, if the torque limiter still slides under normal load conditions, gradually tighten the nut (TLA50-TLA89 type) or bolt (TLA127-TLA508 type),
Until the torque limiter no longer slides
Note that the tightness of each bolt must be uniform. First, try adjusting it several times to find the correct torque setting for the relevant machine. The relationship between the effective angle and the preset torque can be used as a reference
When adjusting precise torque, it is advisable to rotate the torque limiter nut or bolt 45 ° and test run it for about 500 revolutions at 50-60rpm

1. Half coupling 2, friction plate 3, baffle 4, disc spring 5, adjusting nut 6, bushing 7, central component (sprocket, pulley, etc.)

Basic parameters and main dimensions of TLA friction plate torque limiter