What is an electronic shear pin?
‘No more unreliable shear pins, troublesome. slipping clutches or other cumbersome torque limiting devices’ The unique electronic circuitry within the ZENER ESP system monitors certain characteristics of the motor/gearbox to closely approximate the output torque of the drive system.
How does an electronic shear pin work?
The Electronic Shear Pin model ESP 1 & 2 monitors the current drawn by an A.C. induction motor in a manner that closely approximates the torque output of the motor.
What is shear pin used for?
A shear pin (also known as a shear bolt) is a weak bolt that connects your auger to the auger shaft. That connection allows the augers to rotate, collect snow and send snow into the impeller fan where the snow is thrown from the chute.
What is shear pin in turbine?
The shear pin is a mechanical sacrificial component like an electric fuse designed to break itself as and when the mechanical overload arises to prevent the severe damage of expensive components in gearbox assembly and electric generator. The rubber buckles fitted in the coupling provide flexibility during operation.
What is shear pin coupling?
GBM Shear Pin Coupling are used to control the rated torque. GBM Shear Pin is fastened to Shear Pin Plates (along with Bush) which in turn is fastened to the sleeves of the gear couplings. One of the plates are designed to accommodate a ball bearing which gives smoother movement of the total assembly.
What size is a shear pin?
How to Size a Shear Pin. There are three basic sizes of shear bolts, and it’s important to select the correct one for your snowblower to ensure it fits and works correctly. Brass 1/4″ shear bolts are most commonly used on smaller, entry-level snowblowers. Black 5/16″ shear bolts are for larger mid-grade snowblowers.
How tight do you tighten a shear bolt?
You want it tight enough to keep the2 parts from moving back and forth. But not so tight as to keep them from ever moving! Probably 20-30 ft-lb.
How does an electronic shear pin work on an induction motor?
The Electronic Shear Pin model ESP 1 & 2 monitors the current drawn by an A.C. induction motor in a manner that closely approximates the torque output of the motor. Should the output torque of the motor exceed a preset point for a preset length of time, the Electronic Shear Pin will trip, disconnecting the motor from its electrical supply.
What are the terminals for the electronic shear pin?
L1, L2 and L3 : These terminals connect to the motor voltage to give the Electronic Shear Pin a phase reference to use in assessing the motor load. In 3 phase applications, phase rotation doesn’t matter, but the current transformer must be fitted to the motor lead connected to L1.
How are shear pins used in drive trains?
They are most commonly used in drive trains, such as a snow blower ‘s auger or the propellers attached to marine engines. Another use is in pushback bars used for large aircraft. In this device, shear pins are frequently used to connect the “head” of the towbar – the portion that attaches to the aircraft – to the main shaft of the towbar.
What are features of electronic shear pin ESP 2?
The Electronic Shear Pin model ESP 2 provides additional features as follows: • Motor Under Voltage – adjustable under voltage trip point which can be enabled or disabled during the start time. • Phase Loss Protection – can be enabled or disabled during the start time. 1.3 Terminal Functions
The Electronic Shear Pin model ESP 1 & 2 monitors the current drawn by an A.C. induction motor in a manner that closely approximates the torque output of the motor. Should the output torque of the motor exceed a preset point for a preset length of time, the Electronic Shear Pin will trip, disconnecting the motor from its electrical supply.
L1, L2 and L3 : These terminals connect to the motor voltage to give the Electronic Shear Pin a phase reference to use in assessing the motor load. In 3 phase applications, phase rotation doesn’t matter, but the current transformer must be fitted to the motor lead connected to L1.
They are most commonly used in drive trains, such as a snow blower ‘s auger or the propellers attached to marine engines. Another use is in pushback bars used for large aircraft. In this device, shear pins are frequently used to connect the “head” of the towbar – the portion that attaches to the aircraft – to the main shaft of the towbar.
The Electronic Shear Pin model ESP 2 provides additional features as follows: • Motor Under Voltage – adjustable under voltage trip point which can be enabled or disabled during the start time. • Phase Loss Protection – can be enabled or disabled during the start time. 1.3 Terminal Functions
