Integrated structure clutch applied to gearbox

Abstract

The invention relates to an integrated structure clutch applied to a gearbox of a wheel type engineering machinery transmission system. The clutch comprises a main shaft, a gear, a hydraulic system, a power transmission system, a returning system and a casing, wherein the main shaft is fixed on a box body of the gearbox, the gear is positioned on the main shaft through an abrasion bearing pad, one end of the power transmission system is connected with the gear, the other end of the power transmission system is connected with the casing and connected with the hydraulic system through the return system simultaneously, the hydraulic system comprises a piston, a piston seat and an oil relief valve, the piston is fixed on the piston seat through a snapping ring A, the piston and the piston seat are sealed through a seal ring A, the oil relief valve is arranged at one end of the piston seat, the piston seat is fixed on the casing through the snapping ring A, the piston, the piston seat, the oil relief valve and the seal ring A form a closed oil chamber, and an oil way is arranged between the gearbox matched with the clutch and the closed oil chamber. By means of the integrated structure clutch, gear shift impact is reduced, transmission efficiency is improved, transmission accuracy of a gear pair is improved, and noises of the gearbox are reduced.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and in particular relates to an integrated structure clutch applied to a gearbox of a transmission system of a wheeled engineering machinery with a high degree of automation. Background technique [0002] Multi-disc wet clutches are widely used in power shift gearboxes of construction machinery transmission systems. At present, in most fixed-shaft power shift gearboxes in China, multi-disc wet clutches are mostly integrated with the clutch shaft and the clutch housing. structure, this one-piece clutch structure leads to the gearbox case can only be split, the clutch shaft and the case hole must be connected through bearings, because the clutch shaft and the clutch housing are integrated, so when the clutch is working The clutch shaft will rotate together with the clutch housing, resulting in a decrease in transmission efficiency of the gearbox, greater shifting impact, and affecting...

AI Technical Summary

Problems solved by technology

[0002] Multi-disc wet clutches are widely used in power shift gearboxes of construction machinery transmission systems. At present, in most fixed-shaft power shift gearboxes in China, multi-disc wet clutches are mostly integrated with the clutch shaft and the clutch housing. structure, this one-piece clutch structure leads to the gearbox case can only be split, the clutch shaft and the case hole must be connected through bearings, because the clutch shaft and the clutch housing are integrated, so when the clutch is working The clutch shaft will rotate together with the clutch housing, resulting in a decrease in transmission efficiency of the gearbox, greater shifting impact, and affecting the service life of the gears; the split box structure is difficult to ensure the coaxiality of the clutch shaft mounting hole in the box cover. Affect the performance of the gearbox

Images