Railway vehicle bearing disassembly and assembly teaching aid

Abstract

A teaching aid for disassembling and assembling railway vehicle bearings includes a base, an axle, a wheel, a bearing, two spacer rings, and a positioning element. The base includes a bottom extending in a horizontal direction and a fixed portion extending upwards from the bottom perpendicular to the horizontal direction. The axle is fixed to the base along an axis parallel to the horizontal direction. The wheel is fitted onto the axle and abuts against the fixed portion. The bearing is fitted onto the axle and located along the axis on the side of the wheel opposite to the fixed portion. The spacer rings are fitted onto the axle and located at opposite ends of the bearing along the axis. The positioning element is detachably fixed to the end of the axle opposite to the fixed portion. Operators can practice disassembling and assembling the bearing using the axle, thereby increasing their operational proficiency.

Claims

1. A teaching aid for disassembling and assembling railway vehicle bearings, comprising: a base, including a bottom extending in a horizontal direction and a fixing portion extending upward from the bottom perpendicular to the horizontal direction; a shaft body, fixed to the fixing portion of the base along an axis parallel to the horizontal direction; a wheel body, sleeved on the shaft body and abutting the fixing portion; a bearing, sleeved on the shaft body and located on the side of the wheel body opposite to the fixing portion along the axis; two spacer rings, sleeved on the shaft body and respectively located at opposite ends of the bearing along the axis, and used to cooperate with each other to position the bearing on the shaft body; and a positioning member, detachably fixed to the end of the shaft body opposite to the fixing portion, and including a plate extending in a direction perpendicular to the axis, and a plurality of fixing bolts detachably screwed to the plate and the shaft body along the horizontal direction.

2. The teaching aid for disassembling and assembling railway vehicle bearings as described in claim 1, wherein, The base also includes several first bolts extending vertically through the bottom and used to screw the bottom to a horizontal plane, and several second bolts screwing the fixing part and the shaft along the horizontal direction.

3. The teaching aid for disassembling and assembling railway vehicle bearings as described in claim 1, wherein, The wheel body includes two extensions that extend radially from their outer edges and are spaced apart in the horizontal direction to define a groove.

4. The teaching aid for disassembling and assembling railway vehicle bearings as described in claim 1, wherein, The base, the shaft, the wheel, the spaced rings, and the positioning plate are all made of stainless steel.

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