The function of the limit switch in the rail electric transfer cart
2017-12-13
Limit switches in the electric transfer cart, also known as travel switch is restricted to motion limit position of the device, have the effect of the protection switch from being damaged, can prevent electric handling flat wagon beyond the limit, knowledge of the characteristics of electric transfer cart driving system, we are know the importance of limit switch.
The limit switch includes cam, shaft, limit switch and housing.The cam plate is fixed on the shaft, the shaft is set on the shell, and the shell is extended.The limit switch corresponds to the cam chip.The three-pronged limit arm is also set at the outer end of the shaft.Deflection Angle wheel, which is installed on the other end of the shaft;Two limit switches are set on both sides of cam.If the electric transfer cart is disconnecting forward, it must be backward, so that the electric transfer cart can not get out of control.It is easy to install, the two limit functions are integrated into one, the stop baffle is simple, the maintenance is easy, the failure is reduced.
There is also a limit switch device consisting of two inverted cams (1) (2).The two cams have echelon platform, and the platform of cam (1) and cam (2) is installed in reverse 180 degree.Make the same circumferential movement on the axis of rotation.Set a round hole in the side of the cam.The circular hole is equipped with adjusting screw, and the ladder platform of two cam is parallel to each other.Next to the rotation axis is the limit switch with the cam circular surface contact.Compared with the current device, the structure is simple and easy to install, it can save time when debugging, and can guarantee the accuracy of debugging.
