Bearing outer distance ring and gear box

Abstract

The invention provides a bearing outer distance ring and a gear box. The bearing outer distance ring comprises a ring body and at least two locating parts which are arranged on the ring body at intervals, wherein the locating parts are positioned on the same side of the ring body, and protrude in the axial direction of the ring body; the parts, on the outermost side of the radial direction of the ring body, of the locating parts and the edge of the ring body have intervals; the gear box comprises at least two adjacent bearings; and the bearing outer distance ring is arranged between the adjacent bearings. According to the bearing outer distance ring and the gear box provided by the invention, radial and axial clearances of the bearings are adjusted, the bearings are guaranteed to be in the optimal utilization state, oil is timely and fully fed into the bearings, the utilization service life of the bearings is prolonged, the utilization safety of the bearings is improved, the risk that the bearings are burnt is reduced, and the stationarity, effectiveness and safety of transmission of the gear box are improved.

Description

technical field [0001] The invention relates to the technology of a bearing outer spacer ring, in particular to a bearing outer spacer ring and a gear box. Background technique [0002] The high-speed rail gearbox is composed of gears, boxes, bearings and lubrication systems. It is the power transmission device of the high-speed rail train and one of the core components of the high-speed rail train. The large impact load of the train at high speed requires the performance and sealing of the box. It is very high. In the structural design between the two bearings of the gear transmission box, an outer spacer ring needs to be added to adjust the radial and axial clearance of the bearing, and to ensure that the oil is fully and evenly fed into the bearing, so that the bearing can be used in the best condition. good. [0003] At present, there are mainly two types of outer spacer ring structure design between the two bearings of the gear transmission box. The first design is an ...

AI Technical Summary

Problems solved by technology

[0004] However, in the first design, when the oil inlet port of the outer spacer ring and the bearing sleeve of the mating part are misplaced, the oil intake will be reduced, thereby burning out the bearing; while in the second design, the outer spacer ring is drilled along the thin wall in the radial direction , the tooling needs to be independently designed, and it is easy to cause deformation of the workpiece. In addition, the diameter of the round hole is limited by the space, and the oil intake is still insufficient, which is easy to burn out the bearing.

Images