Fixing device for oil seal of rear axle swing frame of mining load wagon

Abstract

The invention relates to the field of mining machinery assistance, in particular to a fixing device for an oil seal of a rear axle swing frame of a mining load wagon. The fixing device comprises an oil seal cover and a ring piece, wherein the oil seal cover is fixed on the upper end surface of the upper part of the swing frame; an annular groove is formed in the inner side of the oil seal cover, the section of the annular piece is in an inverted-L shape, and the annular piece comprises a transversely-arranged clamping-in section and a vertically-arranged abutting section which are fixedly connected; and the clamping section is arranged in the annular groove at the inner side of the oil seal cover. The fixing device is simple in structure, convenient to use and low in cost, the connecting mode that a hinge, a pin shaft and a pin hole are used in cooperation is adopted, the connecting stability is guaranteed, meanwhile, dismounting and mounting convenience is taken into consideration, a more efficient and convenient replacement scheme is provided for workers, oil seal and shaft sleeve replacement is convenient, the labor cost for oil seal and shaft sleeve replacement is reduced, and the fixing device is suitable for wide popularization and application.

Description

technical field [0001] The present application relates to the auxiliary field of mining machinery, in particular to an oil seal fixing device for a rocking frame of a rear axle of a mining loading vehicle. Background technique [0002] At present, the oil of the front cradle of the rear axle of many mining forklifts is sealed on the outside, and the inner bushing is lubricated by adding butter, and the bushing replacement cycle is 1-2 months. Since there is no fixing device for the oil seal on the front side of the swing frame, the oil seal is often squeezed out by the pressure when filling lubricating oil (butter), resulting in the loss of lubricating oil, drastically reducing the service life of the bushing, and increasing the labor cost of replacing the bushing. [0003] The fixing scheme adopted for the oil seal of the rocking frame is to weld the oil retaining ring outside the annular end face of the rocking frame. The center of the oil retaining ring coincides with the...

AI Technical Summary

Problems solved by technology

Since there is no fixing device for the oil seal on the front side of the swing frame, the oil seal is often squeezed out by the pressure when filling lubricating oil (butter), resulting in the loss of lubricating oil, drastically reducing the service life of the bushing, and increasing the labor cost of replacing the bushing

[0003] The fixing scheme adopted for the oil seal of the rocking frame is to weld the oil retaining ring outside the annular end face of the rocking frame. The center of the oil retaining ring coincides with the circumference of the ring end face of the rocking frame. The small contact area is prone to stress concentration, which reduces the service life of the oil seal. When the oil seal is damaged, it will cause oil leakage, thereby reducing the service life of the shaft sleeve, increasing the cycle of replacing the oil seal and shaft sleeve, and replacing the oil seal and shaft sleeve every time It is necessary to repeat the process of removing and welding the oil retaining ring, which increases labor costs

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