| 摘要 |
A boom swing bracket center return mechanism for construction equipment is provided to improve durability of a boom swing bracket and related parts because the center return of the boom swing bracket and the boom made eccentric can be easily made. A boom swing bracket center return mechanism for construction equipment comprises a boom swing bracket wherein a boom is anchored and which is joined in the frame of the car body with the pin and permitted to turn left and right, a boom swing cylinder(400) wherein the rear-end of the cylinder body is fastened to the frame of the car body and the front end of the moving rod is anchored to one part of the boom swing bracket, a sensor counterpart(510) which is placed in one of the boom swing bracket and frame, a detection sensor(520) which is placed in the other one of the boom swing bracket and frame, a selection switch which is electrically connected to the detection sensor and turns on and off the detection sensor, and a controller(500) is electrically connected to the detection sensor and operates the boom swing cylinder through a boom swing control valve(410) and returns the boom swing bracket to the center. |
