Cylindrical multi-roller bearing seat

Abstract

The invention discloses a cylindrical multi-roller bearing seat. The cylindrical multi-roller bearing seat sequentially comprises a ball bladder type outer ring, an outer rolling body, a diameter-variable interlayer ring, and an inner ring from outside to inside, wherein shaft mounting holes are formed in both the upper and the lower ends of the shaft axis of the ball bladder type outer ring, screw mounting holes are formed in both the left and right ends of the ball bladder type outer ring, and a ball bladder type outer ring inner ball bladder track is formed on the inner side of the ball bladder type outer ring; the outer rolling body comprises at least two rows of cylinders for bearing axial force; the ball bladder type outer ring inner ball bladder track is a circular ball bladder inner track; and an outer rolling wheel is connected with the diameter-variable interlayer ring, an outer track groove is formed in the outer side of the diameter-variable interlayer ring, and an inner groove track is formed in the inner side of the diameter-variable interlayer ring. The cylindrical multi-roller bearing seat can substantially improve the bearing capacity of the interlayer ring, effectively control the stability of the bearing interlayer ring in the process of high-speed rotating, and further greatly improve the bearing capacity of a multi-roller layer bearing.

Description

Technical field [0001] The invention relates to the technical field of bearings, in particular to a cylindrical multi-roller bearing seat. Background technique [0002] Although the existing technology can greatly reduce the friction resistance, it can only be used for equipment or oscillating equipment running in opposite directions at the same time, or for large rollers with low speed and unstable axis. Compensate for the experimental conclusions of eccentricity and reduce starting resistance, because the multi-ring bearing will have serious defects when running at a slightly higher speed or under heavy load. The traditional multi-ring bearing has the problem of diameter difference. The friction resistance of the rolling elements of the layer is very different, it is difficult to realize synchronous rotation or cannot rotate at all, which is very unfavorable to reduce the friction resistance. The outer ring of the existing self-aligning bearing basically uses the ring with the ...

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Problems solved by technology

[0002] Although the existing technology can greatly reduce the frictional resistance, it can generally only be used for equipment or shimmy equipment running in opposite directions at the same time, or for large rollers with low speed and unstable shaft center. The experimental conclusion of compensating for eccentricity and reducing starting resistance, because multi-ring bearings have serious defects when operating at slightly higher speeds or under heavy loads, traditional multi-ring bearings have diameter differences, and each The frictional resistance of the rolling elements of the layers is very different, and it is difficult to achieve synchronous rotation or cannot rotate at the same time, which is very unfavorable to reduce frictional resistance. The outer ring of the existing self-aligning bearing basically adopts the ring with the largest spherical diameter as the inner track. , the contact angle between the inner track of the spherical surface with the largest diameter and the rolling elements is the smallest, forming a congenital defect that the axial bearing capacity is too small, and the axial load-bearing rolling elements of the existing top bearings and self-aligning bearings are all single-row structure, the axial bearing capacity is too small to meet the requirements of actual use

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