Lifting device for transmission roller of conveying platform

Abstract

The invention discloses a lifting device for a transmission roller of a conveying platform. The lifting device is characterized by being provided with a platform frame, a supporting arm, bearing seats, a rolling pulley, a wedge block and a loading pile, wherein fixed brackets are arranged at two ends of a lifting swing arm, rotating shafts are arranged on the fixed brackets, the two ends of the lifting swing arm are respectively fixed on fixed plates, the supporting arm is arranged at the front end of the center, the rear end is articulated with the rotating shafts, the lower end is provided with a telescopic oil cylinder, a driving roller is arranged on the front part, the rear ends of the fixed plates are articulated with the rotating shafts, a positioning groove is formed in the upper end surface of the supporting arm, the rolling pulley is arranged at the lower end of the supporting arm, the wedge block is arranged below the supporting arm, the middle part of a driving rolling shaft is seated in the supporting arm, two ends of the driving rolling shaft are respectively connected with the bearing seats, the driving roller and a driven sprocket are fixed on the driving rolling shaft, the wedge block is arranged in the loading pile, the upper end surface of the wedge block contacts with the rolling pulley, the lower end of the wedge block is in sliding connection with the loading pile, the telescopic oil cylinder is fixedly connected with the wedge block, and the loading pile is fixedly connected with the platform frame. The lifting device has the advantages of novel structure, safety and reliability, and the like.

Description

technical field [0001] The invention relates to the technical field of aircraft ground facilities, in particular to a transmission platform driving roller lifting device. Background technique [0002] As an important equipment in the airport industry, the transfer platform vehicle is mainly used for loading and unloading of aircraft cargo. Compared with the previous platform truck, the driving roller lifting device is safe and reliable during the cargo transmission process of the platform truck, with a low failure rate. It can realize the separation and combination of the driving roller and the cargo pallet in time, and will not be affected by the leakage of the hydraulic system. And affect the advantages of the drive of the roller. The platform car is equipped with a set of driving roller lifting device, which can effectively drive the goods on the platform car, and realize the lifting of the driving roller in time according to the needs of transporting goods. When the dr...

AI Technical Summary

Problems solved by technology

The disadvantages of such a structure are: the lifting device gradually moves down after the hydraulic cylinder or hydraulic lock leaks, so that the driving force is insufficient or even has no driving force, thus affecting the cargo transmission of the entire system

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