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CN-224229107-U - Corrosion-resistant and wear-resistant bearing

CN224229107UCN 224229107 UCN224229107 UCN 224229107UCN-224229107-U

Abstract

The utility model discloses an anti-corrosion and wear-resistant bearing, and relates to the technical field of bearings. The novel inner ring comprises an outer ring, an inner ring assembly is arranged in an inner cavity of the outer ring, a retainer is arranged between the inner ring assembly and the outer ring, rolling bodies are arranged in the inner cavity of the retainer, the inner ring assembly comprises a first connecting sleeve, and a second connecting sleeve is clamped in the inner cavity of the first connecting sleeve. According to the sealing design of the inner ring assembly, the first connecting sleeve, the second connecting sleeve, the sealing ring and the sealing plate are clamped, so that the invasion of external impurities is effectively prevented, a good working environment is built in the bearing, a strength foundation is laid for high-carbon chromium bearing steel of a base layer, carburized bearing steel and martensitic stainless steel of a reinforcing layer are combined to improve strength and hardness, and an electroless nickel-phosphorus alloy and a diamond-like carbon coating of a functional layer respectively endow the bearing with excellent corrosion resistance and wear resistance, so that the adaptability of the bearing under complex and severe working conditions is improved in all directions.

Inventors

  • YANG YUNFEI

Assignees

  • 慈溪市文业轴承有限公司

Dates

Publication Date
20260512
Application Date
20250703

Claims (7)

  1. 1. An anti-corrosion and wear-resistant bearing comprises an outer ring (1) and is characterized in that an inner ring assembly (2) is arranged in an inner cavity of the outer ring (1), a retainer (3) is arranged between the inner ring assembly (2) and the outer ring (1), and rolling bodies (4) are arranged in the inner cavity of the retainer (3); The inner ring assembly (2) comprises a first connecting sleeve (21), a second connecting sleeve (22) is clamped in the inner cavity of the first connecting sleeve (21), a sealing plate (23) is fixedly connected to the opposite side of the first connecting sleeve (21) and the opposite side of the second connecting sleeve (22), and a sealing ring (24) is arranged at the joint of the first connecting sleeve (21) and the second connecting sleeve (22); The outer ring (1), the first connecting sleeve (21), the second connecting sleeve (22), the retainer (3) and the rolling bodies (4) are identical in material composition, the outer ring (1) comprises a base layer (11), a reinforcing layer (12) is fixedly connected to the outer surface of the base layer (11), and a functional layer (13) is fixedly connected to the outer surface of the reinforcing layer (12).
  2. 2. An anti-corrosion and wear-resistant bearing according to claim 1, characterized in that said base layer (11) is made of high carbon chromium bearing steel.
  3. 3. An anti-corrosion and wear-resistant bearing according to claim 1, wherein said reinforcing layer (12) comprises a first strength layer (121) and a second strength layer (122), said first strength layer (121) being fixed to an outer surface of the second strength layer (122).
  4. 4. An anti-corrosion and wear-resistant bearing according to claim 3, wherein said first strength layer (121) is carburized bearing steel and said second strength layer (122) is martensitic stainless steel.
  5. 5. An anti-corrosion and wear-resistant bearing according to claim 1, characterized in that the functional layer (13) comprises an anti-corrosion layer (131) and an anti-corrosion wear layer (132), the anti-corrosion wear layer (132) being fixed to the outer surface of the anti-corrosion layer (131).
  6. 6. The corrosion-resistant and wear-resistant bearing according to claim 5, wherein the corrosion-resistant layer (131) is made of electroless nickel-phosphorus alloy, and the corrosion-resistant and wear-resistant layer (132) is made of diamond-like carbon coating.
  7. 7. The anti-corrosion and wear-resistant bearing according to claim 1, wherein the surface of the first connecting sleeve (21) and the inner wall of the outer ring (1) are provided with sliding grooves matched with the rolling bodies (4).

Description

Corrosion-resistant and wear-resistant bearing Technical Field The utility model belongs to the technical field of bearings, and particularly relates to an anti-corrosion and wear-resistant bearing. Background In the field of mechanical transmission, bearings are used as key components in a wide variety of mechanical devices, and play an important role in supporting rotating components and reducing friction. The traditional bearing can meet the basic requirement of mechanical operation to a certain extent, and provides basic support for normal operation of various devices. However, the existing bearings have a plurality of defects, on one hand, in some severe working environments, such as environments in which humid and corrosive gases or liquids exist, the traditional bearings are easy to corrode, so that the performances of the traditional bearings are reduced, the service life of the traditional bearings is shortened, on the other hand, as the running speed and the load of mechanical equipment are continuously improved, the wear resistance requirements on the bearings are also higher and higher, and many traditional bearings cannot meet the wear resistance requirements under high-strength friction, and the wear frequently occurs, so that the stability and the reliability of equipment are affected. To this end we provide an anti-corrosion and wear-resistant bearing to solve the above problems. Disclosure of utility model The utility model aims to provide an anti-corrosion and wear-resistant bearing, which solves the problems of poor sealing performance, anti-corrosion and wear-resistant effects of the bearing in the prior art through the matching of an inner ring assembly, a reinforcing layer and a functional layer. In order to solve the technical problems, the utility model is realized by the following technical scheme. The utility model discloses an anti-corrosion and wear-resistant bearing, which comprises an outer ring, wherein an inner ring assembly is arranged in an inner cavity of the outer ring, a retainer is arranged between the inner ring assembly and the outer ring, a rolling body is arranged in the inner cavity of the retainer, the inner ring assembly comprises a first connecting sleeve, a second connecting sleeve is clamped in the inner cavity of the first connecting sleeve, a sealing plate is fixedly connected to the opposite side of the first connecting sleeve and the second connecting sleeve, a sealing ring is arranged at the joint of the first connecting sleeve and the second connecting sleeve, the outer ring, the first connecting sleeve, the second connecting sleeve, the retainer and the rolling body are identical in composition, the outer ring comprises a base layer, a reinforcing layer is fixedly connected to the outer surface of the base layer, a functional layer is fixedly connected to the outer surface of the reinforcing layer, the overall structure is reasonable in design, the sealing design of the inner ring assembly effectively prevents impurities from entering, the inner structure is protected, the outer ring, the first connecting sleeve, the second connecting sleeve, the retainer and the rolling body which are formed by the same in material, the consistency of the overall performance of the bearing is guaranteed, the strength, the hardness and the overall performance of the bearing are enhanced, the reinforcing layer are gradually, the corrosion resistance and the wear resistance are improved, the comprehensive performance of the bearing is met, and the requirements of different working conditions are met. The utility model further provides that the base layer is made of high-carbon chromium bearing steel. The utility model is further arranged that the reinforcement layer comprises a first strength layer and a second strength layer, the first strength layer being fixed to the outer surface of the second strength layer. The utility model further provides that the first strength layer is made of carburized bearing steel, and the second strength layer is made of martensitic stainless steel. The utility model further provides that the functional layer comprises an anti-corrosion layer and an anti-corrosion wear-resistant layer, and the anti-corrosion wear-resistant layer is fixed on the outer surface of the anti-corrosion layer. The utility model further provides that the anti-corrosion layer is made of chemical nickel-phosphorus alloy, and the anti-corrosion wear-resistant layer is made of diamond-like carbon coating. The utility model is further arranged that the surface of the first connecting sleeve and the inner wall of the outer ring are both provided with sliding grooves matched with the rolling bodies. The utility model has the following beneficial effects. 1. According to the sealing design of the inner ring assembly, the first connecting sleeve, the second connecting sleeve, the sealing ring and the sealing plate are clamped, so that the invasion of external impurities is