CN219755105U

CN219755105U - Adjustable bearing

Info

Publication number: CN219755105U
Application number: CN202321023790.6U
Authority: CN
Inventors: 顾勇文; 张加才
Original assignee: Changzhou Benma Bearing Co ltd
Current assignee: Changzhou Benma Bearing Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-09-26
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to the technical field of bearings, in particular to an adjustable bearing, which comprises an outer ring, an inner ring and a group of rolling bodies, wherein rolling contact is formed between the outer ring and the inner ring; the adjustable preload high-speed bearing has strong adaptability and flexibility, and can be adjusted and optimized according to different application requirements and market requirements.

Description

Adjustable bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to an adjustable bearing.

Background

Bearings are common components in mechanical devices for supporting and controlling a rotating shaft while also being subjected to loads and friction. Conventional bearings generally include an inner ring, an outer ring, and rolling elements, with the support and rotation of the shaft being accomplished by contact between the rolling elements and the inner and outer rings.

However, in high speed rotating equipment, the performance and stability of the bearings can be very challenging. High speed movement generates a lot of heat and friction, and the wear and failure of the bearings increases. In order to improve the performance and stability of bearings, reduce wear and failure, a number of methods have been proposed to improve bearings, including bearings with adjustable preload.

The bearing with adjustable preload can improve the performance and stability of the bearing by controlling the magnitude of the preload between the rolling elements and the inner ring. However, existing adjustable preload bearings still have problems such as difficulty in adjusting the preload size, susceptibility to wear and failure, and the like.

Accordingly, there is a need for a new type of adjustable preload bearing that addresses the above-described problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an adjustable bearing.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

an adjustable bearing comprises an inner ring, an outer ring and rolling bodies. Wherein the rolling bodies are rotated by contact between the inner ring and the outer ring. The utility model further comprises an adjustable ring for controlling the magnitude of the preload between the rolling elements and the inner ring.

Further, the adjustable ring includes an adjustment screw and an adjustment ring. The adjusting ring is positioned between the inner ring and the rolling body, and the gap size can be adjusted through the adjusting screw, so that the preload size is controlled. Meanwhile, the adjusting screw is positioned above the inner ring, so that adjustment is convenient.

Further, a sealing device is included for protecting the rolling elements and the lubricant. The sealing device can adopt contact sealing to improve sealing performance.

Further, it is suitable for high-speed rotating equipment such as machines, vehicles, and airplanes. Compared with the traditional bearing, the wear and faults of the bearing can be reduced, the service life of the bearing is prolonged, and the performance and stability of equipment are improved.

The beneficial effects of the utility model are as follows:

(1) The performance and stability of the bearing are improved by controlling the size of the preload, the abrasion and faults of the bearing are reduced, the service life of the bearing is prolonged, and the performance and stability of equipment are improved.

(2) By means of the sealing means of the contact seal, an effective protection of the rolling bodies and the lubricant is achieved.

Drawings

FIG. 1 is a schematic view of an adjustable bearing according to the present utility model;

FIG. 2 is a schematic view illustrating an internal structure of an adjustable bearing according to the present utility model;

fig. 3 is a schematic view of an adjusting ring structure of an adjustable bearing according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The high-speed bearing with adjustable preload can be applied to various high-speed rotating equipment, such as an aircraft engine, a high-speed motor, a turbine, a machine tool and the like. The bearing provided by the utility model has the advantages of simple structure, high reliability and convenience in maintenance, and can effectively improve the performance and stability of the bearing and prolong the service life of the bearing.

In the embodiment of the utility model, the thickness-adjustable gasket or spring is arranged between the preload ring and the adjusting ring, and the adjustment of the preload can be realized by adjusting the thickness of the gasket or spring. In addition, be provided with the regulation helicla flute on the adjusting ring, through the cooperation of regulation helicla flute and adjusting tool, also can realize the regulation of preload. Therefore, the high-speed bearing with adjustable preload can adapt to different working environments and requirements, and has wide application prospect.

In the embodiment of the utility model, the sealing device adopts a sealing mode of contact sealing, so that the abrasion and faults of the bearing can be reduced, and the service life of the bearing can be prolonged. Meanwhile, the sealing device can also adopt a sealing mode of gas sealing or liquid sealing so as to adapt to different working conditions and requirements.

The adjustable bearing comprises an inner ring 1, an outer ring 2 and rolling elements 3. Wherein the rolling elements 3 are rotated by contact between the inner ring 1 and the outer ring 2. A preload ring 4 is also provided between the inner ring 1 and the outer ring 2 for controlling the magnitude of the preload between the rolling elements 3 and the inner ring 1. The preload ring 4 comprises an adjustment screw 5 and an adjustment ring 6. An adjusting ring 6 is located between the inner ring 1 and the rolling bodies 3, and the gap size can be adjusted by adjusting screws 5, so that the preload size is controlled. The preload ring 4 can be adjusted in magnitude by adjusting the screws 5. Specifically, when it is desired to increase the preload, the adjusting screw 5 may be rotated counterclockwise to move it downward, thereby compressing the adjusting ring 6 and increasing the magnitude of the preload. Conversely, when the preload needs to be reduced, the adjusting screw 5 can be rotated clockwise to move upward, thereby releasing the adjusting ring 6 and reducing the magnitude of the preload. The bearing further comprises a sealing means 7 for protecting the rolling elements 3 and the lubricant. The sealing means 7 may employ a contact seal to improve the sealing performance. The contact seal can improve the sealing performance, reduce the leakage and pollution of the lubricant and prolong the service life of the bearing.

In the embodiment of the utility model, the materials of the preload ring and the adjusting ring are selected from high-strength and high-toughness metal materials so as to improve the bearing capacity and the wear resistance of the bearing. The gasket or the spring is made of high-temperature, high-pressure and corrosion-resistant materials so as to adapt to different working conditions and requirements. The rolling bodies are made of ceramic materials, so that the wear resistance and corrosion resistance of the bearing can be improved, and meanwhile, the friction and heat of the bearing are reduced.

In embodiments of the present utility model, the shape and size of the adjustment helical groove may be adjusted according to different adjustment tools and requirements to achieve precise adjustment of the preload. And an angular contact ball bearing or a cylindrical roller bearing is adopted among the inner ring, the outer ring and the rolling bodies, so that the bearing capacity and rigidity of the bearing can be improved, and meanwhile, the noise and vibration of the bearing are reduced.

In addition to the embodiments described above, other implementations of the bearing of the present utility model are possible. For example, shims or springs or the like may be added between the preload ring and the adjustment ring to increase the adjustment range and accuracy of the preload. In addition, although the technical scheme of the utility model is only described for the high-speed bearing with adjustable preload, the core idea of the utility model is to control the preload to improve the bearing performance and stability, and the utility model is also applicable to other types of bearings, such as angular contact ball bearings, tapered roller bearings, self-aligning roller bearings and the like.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. An adjustable bearing is characterized by comprising an outer ring, an inner ring and a group of rolling bodies, wherein rolling contact is formed between the outer ring and the inner ring; the adjustable ring is used for controlling the preload between the rolling bodies and the inner ring, the adjustable ring comprises an adjusting screw and an adjusting ring, the adjusting ring is positioned between the inner ring and the rolling bodies, the gap size can be adjusted through the adjusting screw, so that the preload size is controlled, a gasket or a spring is arranged between the preload ring and the adjusting ring, and a sealing device is arranged outside the outer ring.

2. An adjustable bearing according to claim 1, wherein the adjusting screw of the adjustable ring is located above the inner ring, an adjusting spiral groove is arranged on the adjusting ring, the preload can be adjusted by matching the adjusting spiral groove with an adjusting tool, the shape and the size of the adjusting spiral groove can be adjusted according to different adjusting tools and requirements, and the size of a gap between the adjusting ring of the adjustable ring and the rolling body can be adjusted according to requirements.

3. The adjustable bearing according to claim 1, wherein the sealing device adopts a sealing mode of contact sealing, so that abrasion and faults of the bearing can be reduced, the service life of the bearing can be prolonged, and the sealing device adopts a sealing mode of gas sealing or liquid sealing, so that the adjustable bearing can adapt to different working environments and requirements.

4. An adjustable bearing according to claim 1 wherein the preload ring and the adjustment ring are made of a high strength, high toughness metal material.

5. An adjustable bearing according to claim 1 wherein the material of the shim or spring is selected from high temperature, high pressure, corrosion resistant materials to accommodate different operating conditions and requirements.

6. An adjustable bearing according to claim 1, wherein angular contact ball bearings or cylindrical roller bearings are used between the inner and outer rings and the rolling elements to increase the load carrying capacity and rigidity of the bearing.

7. An adjustable bearing according to claim 1, wherein the rolling elements are made of ceramic material to improve wear and corrosion resistance of the bearing.