An electric current inside a wire creates a corresponding circumferential magnetic field outside the wire. After creating a motion analyses in SW and a Magnetostatic study in EMS, four important steps shall always be followed: EMS will calculate the force at the initial position then the force value is passed to the SW Motion, which in turn takes the force value, applies it to the plunger, calculates the new position and then sends it back to EMS.
The electromagnetic clutch working can be summarized into following points. If you have any query regarding this article, ask by commenting. The frictional contact, which is being controlled by the strength of the magnetic field, is what causes the rotational motion to start.
Slippage should occur only Study of electromagnetic clutch acceleration. When the gear has to be changed from the first to the second ,it should be done after disconnecting the engine from the gear box. The clutch rotor passes through the bound particles, causing drag between the input and the output during rotation.
The clutch connects the two shafts so that they can either be locked together and spin at the same speed engagedor be decoupled and spin at different speeds disengaged. The action of a torque limiter is especially useful to limit any damage due to crash stops and jams.
Soon thereafter he published his findings, proving that an electric current produces a magnetic field as it flows through a wire. The clutch disc centre spins with the flywheel left. In most designs, springs hold the armature away from the rotor surface when power is released, creating a small air gap.
Before discussing about electromagnetic clutch first you should know about basic fundamentals of clutch.
The rotor portion of the clutch becomes magnetized and sets up a magnetic loop, which attracts both the armature and friction disks.
A DC battery supplies DC current into the clutch winding. Electromagnetic Particle Clutch Magnetic particle clutches are unique in their design from other electromechanical clutches because of the wide operating torque range available.
It is a fundamental force associated with electric and magnetic field. Now we will discuss construction and working of this clutch. Sometimes, exact timing needs to be kept, so tooth clutches can be made with a single position option which means that they will only engage at a specific degree mark.
This force comes into action when two electric charges or magnetic particles comes into contact. This is basic of any clutch.
It is a stronger than gravity but weaker than nuclear force. The frictional force generated at the contact surface transfer the torque. In a clutch, when power is applied, a magnetic field is created in the coil.
The coil is placed behind the rotor. It has been used in automobile transmissions as an alternative to a mechanical clutch. Machinery[ edit ] This type of clutch is used in some lawnmowers, copy machines, and conveyor drives.
In most instances, the rotor is constantly rotating with the input all the time. When current is removed from the clutch, the input is almost free to turn with the shaft. The factual setup of the experiment is not completely clear, so if current flew across the needle or not.
Wet clutches; however, tend to lose some energy to the liquid. Disengagement[ edit ] When current is removed from the clutch, the armature is free to turn with the shaft. Cone clutch A cone clutch serves the same purpose as a disk or plate clutch.In a clutch device, the electromagnetic lines of flux have to pass into the rotor, and in turn, attract and pull the armature in contact with it to complete the clutch engagement.
Figure 1 - Electromagnetic Clutch.
Figure 3 - 3D model of the clutch. Study. A Study of an Electronically Controlled CVT with Electromagnetic-Clutch for Starting the Vehicle In this paper, an application of variable structure systems (VSS) (1) to electromagnetic-clutch (EMC) control for starting vehicles is studied.
An electromagnetic clutch is also a friction clutch which uses electromagnetic force to engage and disengage the clutch. This is all about electromagnetic clutch principle, working advantages and disadvantages along with its diagram.
If you have any query regarding this article, ask by commenting. Before discussing about electromagnetic clutch first you should know about basic fundamentals of clutch. Clutch is a device which engage or disengage two shafts called driving shaft or engine shaft and driven shaft or gear box shaft.
When the electromagnetic clutch is used in automobiles, there may be a clutch release switch inside the gear lever.
The driver operates the switch by holding the gear lever to change the gear, thus cutting off current to the electromagnet and disengaging the clutch. SEPAC offers a large selection of Power On and Power Off Electromagnetic Clutches for your specific OEM application.
ELECTROMAGNETIC BRAKES. MAGNETICALLY ENGAGED (POWER ON) SPRING ENGAGED (POWER OFF) This SEPAC rotating field tooth clutch is designed to operate both dry and in oil.
No bearings are used.Download