Axial series bearing

Abstract

The invention relates to a thrust cylindrical roller bearing with a special structure, in particular to an axial series bearing which comprises a top ring, a bottom ring and at least two assembly units, the two assembly units are axially arranged between the top ring and the bottom ring in series. The two assembly units are concentrically arranged, the centers of the two assembly units are connected in series through an inner shaft sleeve, one end of the inner shaft sleeve makes contact with the top ring, and the other end of the inner shaft sleeve is provided with a bottom shaft ring. The bearing series connection bearing is formed by multiple thrust roller bearings, and the bearing series connection bearing is characterized in that the bearing rigidity and load are improved by increasing the occupied space in the axial direction instead of increasing the occupied space in the radial direction through the large axial length, that is, the multiple small thrust bearings are connected in parallel in the axial direction through a special structure; by means of the special internal structure, all thrust roller bearing components forming the series bearing can evenly divide the total loaded axial force into single parts with the number equal to that of the component bearings, and the purpose of force division is achieved.

Description

technical field [0001] The invention relates to a thrust cylindrical roller bearing with a special structure, in particular to an axial tandem bearing, which realizes greater axial thrust bearing capacity in a smaller radial installation space through the average distribution of axial loads of multi-row thrust bearings, and belongs to the technical field of bearings . Background technique [0002] The light weight and stabilization of gearbox bearings are the main ideas of bearing design in recent years, especially for extrusion granulator gearboxes. The working conditions of the gearbox output shaft are characterized by low speed and extreme axial load. Large, which will cause the use of the usual axial thrust spherical roller bearings to occupy a very large radial installation space, and the output end of the extrusion granulator is usually composed of two linked output shafts that are closely spaced. Using this High-thrust self-aligning roller bearings will cause problem...

AI Technical Summary

Problems solved by technology

[0002] The light weight and stabilization of gearbox bearings are the main ideas of bearing design in recent years, especially for extrusion granulator gearboxes. The working conditions of the gearbox output shaft are characterized by low speed and extreme axial load. Large, which will cause the use of the usual axial thrust spherical roller bearings to occupy a very large radial installation space, and the output end of the extrusion granulator is usually composed of two linked output shafts that are closely spaced. Using this High-thrust self-aligning roller bearings will cause problems in the control of the distance between the two shafts. In the end, even if one shaft uses a high-thrust self-aligning roller bearing through misalignment, the other shaft can only use a small shaft due to the limited installation space. Some thrust support bearings, which will cause the two shafts to have unequal axial stiffness or unbalanced strength, resulting in damage to the gearbox

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