Locking device for bearing with extended inner ring

Abstract

The invention relates to a locking device for a wide inner ring bearing, which comprises a bearing inner ring. A bush is arranged in the bearing inner ring, and a locking nut is arranged between one end of the bush and one end of the bearing inner ring. An inner circle of the bearing inner ring and an outer circle of the bush are tapered, and the tapers of the inner circle and the outer circle are equal. The locking device is characterized in that a large diameter end of the bearing inner ring extends out of one end of an outer ring, a large diameter end of the bush extends out of the large diameter end of the bearing inner ring, and the outer circle at the outer extending end of the bush is provided with a circumferential lug boss. The bush inside the circumferential lug boss and the bearing inner ring are fixedly matched in the circumferential direction and slidingly matched in the axial direction. The outer end of the locking nut is provided with circumferential inner convex edges for locking among main shafts of the bush and between the bush and the bearing inner ring. The locking device not only can ensure the locking between the bearing and the main shafts and prolong the service life of the bearing, but also can save steel and lower production cost. The locking device is applicable to the connection between the wide inner ring bearing and the main shafts.

Description

technical field [0001] The invention relates to a bearing fixing device. Specifically, it is a locking device for the connection between the inner ring and the main shaft of the wide inner ring bearing when it is installed and used. Background technique [0002] It is known in the machinery manufacturing industry that the inner ring and the main shaft of the bearing need to be fixedly connected together when it is installed and used. Therefore, most of the bearings are equipped with locking devices. The traditional locking device includes a bearing inner ring, and a bushing is arranged in the bearing inner ring. The cross section of the bushing is C-shaped, and a lock nut is arranged between one end of the bushing and one end of the bearing inner ring. The inner circle of the inner ring of the bearing and the outer circle of the bushing are both tapered and equal in taper, so that the diameter of the inner circle at one end of the inner ring and the outer diameter of the b...

AI Technical Summary

Problems solved by technology

Because the wall thickness of the small diameter end of the bush is thicker, it occupies the effective space of the bearing and limits the size of the bearing, thereby shortening the service life of the bearing

And because the small-diameter end wall of the bushing is thicker, more steel materials are used, and the production cost is higher

In addition, since the bush and the inner ring have no positioning mechanism in the circumferential direction, the bush and the inner ring of the bearing are easy to slide in the circumferential direction, making it difficult to lock the bearing and the main shaft

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