Single-rod bearing for high-speed rotation

Abstract

The invention relates to the technical field of bearing lubrication, in particular to a single-rod bearing for high-speed rotation, which comprises a bearing rod, a bearing sleeve and a bearing gasket, the bearing sleeve is arranged on a rolling step shaft of the bearing rod, a plurality of roller pins are uniformly distributed and mounted in an annular gap along the circumferential direction, and two adjacent roller pins and an inner hole wall form an oil collecting cavity; the fixed step shaft is sleeved with the bearing gasket, the rolling step shaft is provided with a limiting flange which is matched with the bearing gasket and used for limiting the bearing sleeve to move in the axial direction, oil inlet grooves which are obliquely formed in the radial direction are formed in the end faces of the two sides of the bearing sleeve, the first oil hole in the bearing rod and the oil inlet grooves are communicated with the annular gap, and the first oil hole is communicated with the second oil hole. When the bearing rotates at a high speed, lubricating oil can quickly enter the annular gap through the pressure difference generated by rotation of the oil inlet groove and is quickly discharged through the first oil hole and the second oil hole, heat generated by the bearing is taken away in time while the roller pin is lubricated, the over-temperature risk of the bearing is avoided, and the service life of the bearing is prolonged.

Description

technical field [0001] The invention relates to the technical field of bearing lubrication, in particular to a single-rod bearing for high-speed rotation. Background technique [0002] Bearings are often used as guide rollers, valve stem rollers, cam rollers and pressure rollers for sliding, etc., and are mainly used in a variety of machinery, such as automatic machinery, special machinery, cam working devices, various handling systems, conveyors and machining centers. Knife device. [0003] The existing bearing lubrication cannot automatically and timely replenish the lubricant for the bearing, and manual lubrication is required on a regular basis, which is time-consuming and laborious, and the lubrication effect of the bearing is limited by the speed. When the rotor speed is low, due to the small centrifugal force, the axial After the oil is discharged, it can be sprayed smoothly into the bearing raceway to complete the bearing lubrication. However, when the rotor speed i...

AI Technical Summary

Problems solved by technology

[0003] The existing bearing lubrication cannot automatically and timely replenish the lubricant for the bearing, and manual lubrication is required on a regular basis, which is time-consuming and laborious, and the lubrication effect of the bearing is limited by the speed. When the rotor speed is low, due to the small centrifugal force, the axial After the oil is discharged, it can be sprayed smoothly into the bearing raceway to complete the bearing lubrication. However, when the rotor speed is high, due to the large centrifugal force, the oil will float away in the radial direction after the axial discharge, and cannot approach the bearing, resulting in insufficient lubrication of the high-speed bearing, resulting in The risk of bearing overheating seriously affects the service life of the bearing, and there are great safety hazards during the operation of the bearing

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