The utility model comprises a detecting device, a measuring bracket, a measuring control and a cable, etc.
The detecting device is installed on the measuring bracket, the measuring controller is installed in the electric cabinet, and the driver is controlled by cable and signal transmission to realize the detecting function of broken knife. The detection device component is shown in Figure 2.
In the detection device, the direction of the impact plate, the ratio of the left and right length of the impact bar and the position of the counterweight can be adjusted. Among them, the direction of the plane of the impact plate can only be perpendicular to the direction of rotation and can not be parallel; the ratio of the left and right length of the impact rod should conform to the design ratio and can not be adjusted arbitrarily; the position of the counterweight, the moment must first be balanced according to the other length of the impact bar. The detecting device comprises a power line and an encoder line, which are mounted opposite each other at the 2 locking terminals in Fig. 2.
The control part mainly includes the controller and the driver two big components, the controller mainly uses for adjusts and controls the detection precision as well as and the equipment information communication function; The driver is mainly used to control the motor movement and feedback information to the controller. The controller and driver are recommended to be installed in the electrical box of the device.
Whether the impact rod torque is balanced or not has a significant influence on the output results of the knife breaking tester. The better the impact rod balance is, the more accurate the measurement results are, the function of a broken knife detector with a long impact bar without a counterweight can not be guaranteed. Counterweight block material is brass H59, the center has a pre-perforated hole, for adjusting the balance position, fixed for the circumferential radial has two M4 locking holes. The adjusting method is: after moving the impact bar on one side of the impact plate and confirming the length, fastening the two screws on the coupling, then placing them laterally on the horizontal plane, and changing the distance from the center of rotation by moving the counterweight, observe the rotation and swing of the coupling, adjust the torque balance on both sides and use the top wire lock, as shown in Figure 5. At the same time, the rotation space on one side of the counterweight must be taken into account, otherwise it is easy to cause collision.
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