Twin-screw impregnation machine gear transmission

Abstract

The invention discloses a gear transmission device of a double-screw impregnator. The gear transmission device comprises a high-speed shaft, a distribution shaft, a first output shaft and a second output shaft, the high-speed shaft, the distribution shaft, the first output shaft and the second output shaft are installed in a box body, the high-speed shaft is provided with a first gear, the distribution shaft is sequentially provided with a third gear, a second gear and a fifth gear, the second gear is meshed with the first gear, the third gear is meshed with a fourth gear on the second output shaft, the fifth gear is meshed with a sixth gear on the first output shaft, the second gear, the third gear and the fifth gear are in interference fit on the distribution shaft, the fourth gear is installed on the second output shaft in an interference fit mode, the end of the distribution shaft is provided with an oil hole, the face, matched with the third gear, of the distribution shaft is provided with an annular oil groove, and the oil hole is communicated with the annular oil groove. Fatigue life of a transmission shaft is prolonged, reliability of the transmission shaft is improved, phase positions on the two output shafts are the same after assembly, and the best axial gap of double screws is obtained.

Description

technical field [0001] The invention relates to a transmission device, in particular to a gear transmission device of a twin-screw dipping machine. Background technique [0002] The working mechanism of the twin-screw impregnation machine is composed of two mutually meshing screws with the same shape. The two screws rotate in the same direction. The relative position of the two screw shafts and the meshing screw have a small axial gap. The phases of the spline teeth of the two output spline shafts must be kept strictly the same, otherwise, the two screws will easily interfere with each other and affect the normal operation of the equipment. At the same time, the working condition of the equipment is low-speed and high-torque. Therefore, it brings certain difficulties to the structural design, processing and assembly of the gear transmission device. Over the years, the industry has been continuously innovating and improving the design scheme, processing and assembly process o...

AI Technical Summary

Problems solved by technology

Affected by the mutual position accuracy of the gear teeth and spline teeth, it is difficult to ensure that the two output shaft splines of the current twin-screw impregnation machine gear transmission are strictly consistent with each other. The meshing gap is used to ensure that the screw does not interfere during operation, so as to realize the normal operation of the equipment

[0004] Moreover, the current high-speed input shaft end of the gear transmission device of the twin-screw impregnation machine and the lubricating oil seal at the output shaft ends of the two screws adopt a single-seal structure of the contact rotating shaft lip seal ring, which is affected by the manufacturing quality, service life and installation accuracy of the seal ring. Very prone to lubrication leakage

Limited by the installation space and structure, the replacement of the sealing ring needs to be shut down for maintenance, and the screw or motor needs to be displaced, and the gear transmission can only be carried out out of the box. The downtime is long and the workload is heavy.

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