Belt tensioning mechanism of mechanical press

Abstract

The invention relates to a belt tensioning mechanism of a mechanical press. The belt tensioning mechanism of the mechanical press is characterized in that a driving belt wheel and a driven belt wheel are connected through a belt, a tensioning wheel is in hinged connection with the end part of a piston rod of an air cylinder, and the tensioning wheel is in contact and friction with the belt; and the air cylinder is fixedly arranged at one side of the belt, an axis of the piston rod of the air cylinder and a transmission direction of a belt wheel are in a vertical state, an outlet and an inlet of an electronic servo valve are respectively communicated with a lower cavity of the air cylinder and the inner part of an air storage cylinder through pipelines, an air outlet of an air pump is communicated with the inner part of the air storage cylinder through a pipeline, an output shaft of an electric motor is fixedly connected with an input shaft of the air pump, a pressure collection opening of a pressure sensor is communicated with the lower cavity of the air cylinder, and a pressure collection opening of a pressure relay is communicated with the inner part of the air storage cylinder. According to the belt tensioning mechanism disclosed by the invention, the labor intensity and the difficulty of manually tensioning the belt can be relieved, and the defects that in the existing belt tensioning mechanism, the working is unreliable, and the error of a tensioning force is larger are overcome.

Description

technical field [0001] The invention relates to a belt tensioning mechanism, in particular to a mechanical press belt tensioning mechanism. Background technique [0002] The mechanical press mainly works by the energy stored in the high-speed rotation of the flywheel. The high-speed rotation of the flywheel is driven by the motor through the belt. In actual work, due to long-term use, it often causes problems with The looseness of the belt connected to the flywheel will not only reduce the working capacity of the press, but in severe cases, the mold will even be stuck, unable to work normally, and even other safety accidents will occur. At present, the solution to the loose belt of the mechanical press The main method adopted by the phenomenon is the method of regular adjustment. This method of regular adjustment is not only troublesome, but at the same time, due to the influence of human factors, there are defects that the adjustment is not timely, unreliable, and the ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a belt tensioning mechanism of a mechanical press. The automatic tensioning mechanism of the invention can reduce the labor intensity and existing difficulties of manually tensioning the belt, and at the same time, overcome the existing problems of the existing belt tensioning mechanism. Defects of unreliable work and large tension error

Images