The scissor structure of the mobile scissor lift mainly plays the role of support and movement transformation. The lifting platform is in direct contact with the load, converting the load into a uniform load, thereby enhancing the local bearing capacity. The lower chassis mainly plays the role of support and load transmission. It not only bears the weight of the entire lift, but also transmits the force to the support wheels. Through the mutual cooperation of these mechanisms, the stable and reliable operation of the elevator is realized.
When the load platform is raised to the top, the distance between the scissor brackets becomes larger, and the load of the lifting platform is a uniform load at this time. According to the theory of material mechanics, the bending stress at the middle point of the two brackets is the largest at this time, which may be Bending failure will occur. According to the measures to improve the bending strength of the beam in the mechanics of materials, rationally arranging the force of the beam can reduce the maximum force value, thereby improving its bearing capacity.
The upper top plate of the scissor elevator is in direct contact with the load, and its structure is welded by several cross-vertical hot-rolled channel steels. Four hot-rolled channel steels of No. 16 are arranged along the length direction of the upper top surface of the platform and arranged along the width direction. Six No. 10 hot-rolled channel steels are machined in the extension direction of the outermost edge to install the chute for the upper and lower brackets for the installation of the upper and lower brackets. The specific size of the chute depends on the specific size and structure of the upper and lower brackets.
