CN204403140U - One has aligning roller bearing - Google Patents

Abstract

The utility model provides one to have aligning roller bearing, be placed on by roller and keep being connected to form inseparable retainer assembly by retainer lid in stand pocket hole, be one group of bearing with outer ring, inner ring trap again, roller rolls surface is entirely convex sphere, outer ring, inner ring are provided with its corresponding raceway, are provided with the rib with tip degree in outer ring raceway both sides.The beneficial effects of the utility model: lubrication is abundant, good heat dissipation, and precision is high, improve compound heavy duty ability, can reach the usage requirement of special operation condition.

Description

A self-aligning cylindrical roller bearing

technical field

The utility model relates to a self-aligning cylindrical roller bearing. It is used in large-scale ocean ship traction ships and oil platform supply ships, and is matched with the working bearings of marine propellers to support blades.

Background technique

The swing angle of the propeller blade is about ±60°, which requires the bearing to bear considerable radial load and corresponding torque, and the edge stress generated by the bearing raceway needs to be eliminated by the unloading capacity of the bearing itself.

The existing cylindrical roller bearing structure cannot meet the working conditions of some specific parts at all, especially for bearings with self-aligning requirements, so a new structure of bearings is necessary to meet market demand.

Contents of the invention

In order to realize the requirements of large radial load and corresponding torque in special working conditions of vertically installed cylindrical roller bearings, the inner ring of the bearing needs radial deflection ±X', the utility model provides a self-aligning cylindrical roller bearing.

The technical solution of the utility model is: a self-aligning cylindrical roller bearing, the roller is placed in the pocket hole of the cage seat and connected by the cage cover to form an inseparable cage assembly, and then combined with the outer ring and the inner ring The sleeve is a set of bearings, which are characterized in that: the rolling surface of the rollers is a fully convex spherical surface, the outer ring and the inner ring are provided with corresponding raceways, and ribs with sharpness are provided on both sides of the outer ring raceway.

The tip θ of the ribs on both sides of the raceway of the outer ring (1) is 17'±1'30".

Compared with the prior art, the utility model has the advantages of sufficient lubrication, good heat dissipation, high precision, improved composite heavy load capacity, and can meet the use requirements of special working conditions.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is an enlarged view of the partial structure of FIG. 1 .

Fig. 3 is a schematic diagram of the roller of the present invention.

In the figure: 1. Outer ring, 2. Inner ring, 3. Roller, 4. Cage seat, 5. Cage cover.

Detailed ways

In order to meet the requirements of the large radial load and the corresponding torque of the vertically installed cylindrical roller bearing, the inner ring 2 of the bearing needs to deflect ±X' in the radial direction. The self-aligning cylindrical roller bearing of the present invention has Cylindrical roller 3 is designed to be fully convex, and the finite element model is used to verify that the convexity radius and convexity meet the radial deflection ±X'. The bearing outer ring 1 has double ribs on both sides of the raceway, and its tipping θ is 17'±1'30", which can effectively eliminate the stress concentration phenomenon caused by the contact between the end face of the fully convex roller and the rib. In the present invention, the roller 3 is placed in the pocket hole of the cage seat 4 and connected by the cage cover 5 to form an inseparable The cage assembly is then combined with the outer ring 1 and the inner ring 2 to form a set of bearings. 

The utility model is applied to the working bearing for supporting blades of marine propellers. After testing, the product has high reliability and stability and meets the design requirements.

Claims (2)

1. one kind has aligning roller bearing, be placed on by roller (3) and keep being connected to form inseparable retainer assembly by retainer lid (5) in stand (4) pocket hole, be one group of bearing with outer ring (1), inner ring (2) trap again, it is characterized in that: roller (3) rolling surface is entirely convex sphere, outer ring (1), inner ring (2) are provided with its corresponding raceway, are provided with the rib with tip degree in outer ring (1) raceway both sides.

2. one according to claim 1 has aligning roller bearing, it is characterized in that: the tip degree θ of described outer ring (1) raceway both sides rib is 17 ＇ ± 1 ＇ 30 ".