ANTI-COLLISION LIMIT DEVICE

• Main Authors: SUN Zhongjin, ZHANG Jitong, ZHOU Zhiyuan, ZHANG Cheng
• Format: Patent
• Language: English
• Published: 27.02.2023
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The present invention provides an anti-collision limit device, including: a contact switch, wherein the contact switch is mounted on a bottom plate, the contact switch is provided with a swing member used for triggering and making the contact switch generate a contact signal; and a damper, the damper including a contact rod, where the contact rod is slidably mounted on the bottom plate, the contact rod is connected to an elastic member used for damping an impact force on the contact rod, the contact rod is further connected to a drive member, the drive member is provided with a drive surface parallel to a slide direction of the contact rod, an end of the drive surface close to the swing member is provided with a beveled surface smoothly connected to the drive surface, after the contact rod is subjected to an impact force from a moving machine, the contact rod drives the drive member to move synchronously, and the drive member compresses the swing member sequentially through the beveled surface and the drive surface, to make the contact switch generate a contact signal for braking the machine. The combination of a mechanical contact switch and an anti-collision device is used in the present invention, the use cost is low, and safety and reliability are achieved.