Drive axle gearbox wheel set for large railway maintenance machinery

Abstract

The invention discloses a drive axle gearbox wheel set for large railway maintenance machinery. The drive axle gearbox wheel set comprises an axle, two wheels, a sliding bearing, a locking steel ball, an inner sleeve, an outer sleeve, a rolling steel ball, an axle retainer ring, a hole retainer ring, a spring and an end cover. The two wheels are positioned on wheel seats at two ends of the axle respectively. The locking steel balls, spherical grooves, a radial cylindrical hole of the inner sleeve and the outer sleeve form a locking mechanism; the rolling steel balls, first semicircular grooves and second semicircular grooves are matched to form a rolling ball key mechanism; the end cover is fixed to the end face of one side, away from the wheels, of the outer sleeve, a gap is reserved between the end cover and the circumference of the inner sleeve, the end cover is capable of axially moving left and right along the inner sleeve, and the springs are mounted in a closed annular inner cavity formed by the outer sleeve, the end cover and the inner sleeve. The drive axle gearbox wheel set for large railway maintenance machinery is simple in structure, convenient to operate and capable of fitting different rail gauges.

Description

technical field [0001] The invention relates to a large-scale railway maintenance machine, in particular to a wheel set of a driving axle gear box of the large-scale road maintenance machine. Background technique [0002] The drive axle gearbox wheel set is widely used in the field of railway and rail transit, and it is an essential drive device for large self-propelled road maintenance machinery. The domestic standard gauge is 1435mm. As China's railway products and construction technology go to the international market, they will encounter problems with different gauges, such as wide gauge 1520mm and meter gauge (or narrow gauge) 1000mm. At present, the standard gauge of large-scale road maintenance machinery produced in China is 1435mm, and the wheel set of drive axle gearbox cannot be matched to meet the requirements of different gauges. A typical assembled axle rail drive axle gearbox wheel set is shown in the appendix figure 1 As shown, the wheels are installed on th...

AI Technical Summary

Problems solved by technology

At present, the standard gauge of large-scale road maintenance machinery produced in China is 1435mm, and the drive axle gearbox wheel set cannot be matched to meet the requirements of different gauges.

A typical assembled axle rail drive axle gearbox wheel set is shown in the appendix figure 1 As shown, the wheels are installed on the wheel seat of the axle through interference fit, the gear transmission device (or called the drive axle gearbox) drives the axle to rotate, and the wheels rotate with the axle to drive the whole vehicle to move. The distance between the two wheels is 1435mm It only meets the domestic standard gauge. This distance is fixed and cannot be moved. It is not suitable for the needs of different gauges.

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