Anti-corrosion high-plasticity lubricating bearing steel pipe

Abstract

The utility model discloses an anti-corrosion high-plasticity lubricating bearing steel pipe, which relates to the technical field of bearing steel pipes and comprises a steel pipe main body, the steel pipe main body sequentially comprises an anti-corrosion lubricating layer, a high-plasticity base layer and an outer anti-corrosion layer from inside to outside, a sealing ring is fixedly arranged in the steel pipe main body, and sealing covers are arranged at two ends of the steel pipe main body in a threaded manner. By means of the nano-silver particle layer and the polytetrafluoroethylene coating in the anti-corrosion lubricating layer and the thermal spraying ceramic coating of the outer anti-corrosion layer, double anti-corrosion protection is provided for the steel pipe from the inner side and the outer side, and the anti-corrosion lubricating layer prevents impurities and water in an internal lubricant from corroding the inner wall of the steel pipe; the outer anti-corrosion layer prevents external moisture, corrosive gas and the like from corroding the outer wall of the steel pipe, the service life of the steel pipe is remarkably prolonged, and the maintenance and replacement cost caused by corrosion is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bearing steel pipe technology, specifically to a corrosion-resistant, high-plasticity lubricating bearing steel pipe. Background Technology

[0002] Bearing steel tubes, as a key material in bearing manufacturing, are widely used in many fields such as machinery, automobiles, and aerospace. High-plasticity bearing steel tubes require materials with excellent toughness and wear resistance to withstand high loads and high-speed rotation. Currently, high-plasticity bearing steel tubes on the market still have certain shortcomings in terms of corrosion resistance and lubrication performance.

[0003] In terms of corrosion prevention, most bearing steel pipes are susceptible to the effects of moisture and corrosive gases in the environment during long-term use or storage. For example, some existing bearing steel pipes rely solely on simple coatings for protection, which are prone to peeling and cannot effectively resist corrosion in the long term. This leads to oxidation and corrosion of the inner wall of the steel pipe, which seriously affects the service life of the bearings subsequently manufactured. In terms of lubrication performance, the lubrication method of traditional bearing steel pipes is relatively simple, often relying on the addition of external lubricants. Moreover, the internal structural design of the steel pipe is not conducive to the uniform distribution and long-term retention of lubricants, making it difficult to continuously provide good lubrication conditions for bearing operation, increasing energy consumption and noise, and shortening the service life of the bearings. Summary of the Invention

[0004] In view of the problems existing in the current high-plasticity lubricated bearing steel pipes, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a corrosion-resistant, high-plasticity lubricating bearing steel pipe, which solves the problems of poor corrosion resistance and poor lubrication performance of bearing steel pipes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A corrosion-resistant, high-plasticity lubricating bearing steel pipe includes a steel pipe body. From the inside out, the steel pipe body consists of an anti-corrosion lubrication layer, a high-plasticity base layer, and an outer anti-corrosion layer. A sealing ring is fixed inside the steel pipe body, and sealing caps are threaded at both ends of the steel pipe body. Multiple guide grooves are evenly arranged on the inner sidewall of the steel pipe body. The anti-corrosion lubrication layer is a composite coating of polytetrafluoroethylene and nano-silver particles. The cross-sectional shape of the guide grooves is semi-circular.

[0008] Preferably, the thicknesses of the polytetrafluoroethylene layer and the nano-silver particle layer are 1 mm and 0.5 mm, respectively.

[0009] Preferably, the sealing ring is a rubber ring.

[0010] Preferably, the high-plasticity base layer is made of alloy steel.

[0011] Furthermore, the thickness of the outer anti-corrosion layer is 1.5 mm.

[0012] Preferably, the outer anti-corrosion layer is a ceramic coating.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model provides double corrosion protection for steel pipes from both internal and external aspects through the nano-silver particle layer and polytetrafluoroethylene coating in the anti-corrosion lubrication layer, and the thermal spray ceramic coating in the external anti-corrosion layer. The anti-corrosion lubrication layer prevents impurities and moisture in the internal lubricant from corroding the inner wall of the steel pipe, while the external anti-corrosion layer blocks external moisture and corrosive gases from eroding the outer wall of the steel pipe, significantly extending the service life of the steel pipe and reducing maintenance and replacement costs caused by corrosion.

[0015] 2. In this utility model, the anti-corrosion lubrication layer uses a polytetrafluoroethylene layer with an extremely low coefficient of friction. Combined with the guide groove design on the inner wall of the steel pipe, it can make the lubricant evenly distributed and retained for a long time, providing stable and efficient lubrication conditions for bearing operation. This not only reduces energy consumption and noise, but also reduces wear on bearing parts, improves the smoothness and reliability of bearing operation, and extends the service life of bearing.

[0016] 3. This utility model features a highly ductile base layer with special heat treatment and alloying, which gives the steel pipe excellent plasticity and strength, enabling it to withstand the stress of bearings under harsh conditions such as high load and high speed rotation. This meets the high-performance requirements of bearing steel pipes in different fields. The sealing rings and sealing caps at both ends of the steel pipe body can effectively prevent external impurities from entering the interior of the steel pipe. When the steel pipe is stored or not in use, it protects the inner wall of the steel pipe from pollution and corrosion, further improving the protective performance of the steel pipe. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional sectional view of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the anti-corrosion and lubrication layer of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Steel pipe body; 2. Anti-corrosion and lubrication layer; 3. High plasticity base layer; 4. External anti-corrosion layer; 5. Sealing ring; 6. Sealing cap; 7. Guide groove; 8. Polytetrafluoroethylene layer; 9. Nano silver particle layer. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a corrosion-resistant, high-plasticity lubricating bearing steel pipe.

[0025] This utility model provides, for example Figure 1-3 The illustrated corrosion-resistant, high-plasticity lubricating bearing steel pipe includes a steel pipe body 1. From the inside out, the steel pipe body 1 consists of an anti-corrosion lubrication layer 2, a high-plasticity base layer 3, and an outer anti-corrosion layer 4. A sealing ring 5 is fixed inside the steel pipe body 1, and sealing caps 6 are threaded at both ends of the steel pipe body 1. Multiple guide grooves 7 are evenly arranged on the inner wall of the steel pipe body 1. The anti-corrosion lubrication layer 2 is a composite coating of a polytetrafluoroethylene layer 8 and a nano-silver particle layer 9. The cross-sectional shape of the guide grooves 7 is semi-circular. The outer anti-corrosion layer 4 is prepared on the outer surface of the high-plasticity base layer 3 using a thermal spraying process. Ceramic powder is heated to a molten or semi-molten state using thermal spraying equipment and sprayed at high speed onto the surface of the high-plasticity base layer 3 to form a tightly bonded ceramic coating. During the spraying process, spraying parameters, such as spraying temperature, distance between the spray gun and the workpiece, and spraying angle, are strictly controlled to ensure the quality and thickness uniformity of the ceramic coating. For the anti-corrosion lubrication layer 2, the inner wall of the high-plasticity base layer 3 is first surface-treated to improve its surface roughness. To enhance coating adhesion, a composite coating of polytetrafluoroethylene layer 8 and nano-silver particle layer 9 is uniformly applied to the inner wall of the steel pipe using spraying or dipping methods. After curing, an inner anti-corrosion and lubrication layer 2 is formed. When installing the sealing assembly, the sealing ring 5 is first fitted onto the end of the steel pipe body 1, ensuring its inner side fits tightly against the inner wall of the steel pipe. Then, the sealing cap 6 is screwed onto the steel pipe body 1, ensuring that the sealing gasket between the sealing cap 6 and the steel pipe body 1 provides a good seal. When this bearing steel pipe is used in bearing manufacturing, during assembly, an appropriate amount of lubricant is filled into the inner wall of the steel pipe body 1. The lubricant will be evenly distributed along the guide groove 7 on the working surface of the bearing, providing continuous and stable lubrication for the bearing operation. During use, the outer anti-corrosion layer 4 can effectively resist the erosion of the external environment, while the inner anti-corrosion and lubrication layer 2 can ensure good lubrication performance and prevent corrosion of the inner wall of the steel pipe, thereby greatly improving the service life and operational reliability of the bearing.

[0026] In order to effectively reduce energy loss, such as Figure 3As shown, the thicknesses of the polytetrafluoroethylene (PTFE) layer 8 and the nano-silver particle layer 9 are 1 mm and 0.5 mm, respectively. The PTFE layer 8 and the nano-silver particle layer 9 complement each other and play a key role in improving the performance of the steel pipe. Due to its unique chemical and physical properties, the PTFE layer 8 has an extremely low coefficient of friction, which can significantly reduce the friction force during bearing operation, thereby effectively reducing energy loss. Its excellent chemical stability can resist the erosion of a variety of chemical substances, providing good anti-corrosion protection for the inner wall of the steel pipe, ensuring that the inner wall of the steel pipe is not easily corroded even in the lubricant environment containing corrosive media.

[0027] In order to maintain good lubrication, such as Figure 1-2 As shown, the sealing ring 5 is made of rubber. After the bearing steel tube is used in bearing manufacturing and put into use, the sealing ring 5 can prevent internal lubricant leakage, ensure that the lubricant can continue to play a role between the inner wall of the steel tube and the bearing components, maintain a good lubrication state, avoid increasing the friction of bearing operation due to lubricant loss, reduce energy loss and noise, reduce the wear of bearing components, and extend the service life of the bearing.

[0028] To provide stronger support, such as Figure 2 As shown, the high-plasticity base layer 3 is made of alloy steel for stronger support.

[0029] Finally, for better corrosion prevention, such as Figure 1-2 As shown, the outer anti-corrosion layer 4 has a thickness of 1.5mm. To achieve better anti-corrosion effect, the outer anti-corrosion layer 4 adopts a ceramic coating. This ceramic coating has high hardness and can effectively resist mechanical wear. During the use of the steel pipe, whether it is friction with other components or impact from external particles, the ceramic coating can reduce the wear on the surface of the steel pipe due to its high hardness, maintain the stability of the steel pipe's dimensions, and ensure its normal performance under complex working conditions.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A corrosion-resistant, high-plasticity lubricating bearing steel pipe, comprising a steel pipe body (1), characterized in that, The steel pipe body (1) consists of an anti-corrosion lubrication layer (2), a high-plasticity base layer (3), and an outer anti-corrosion layer (4) from the inside to the outside. A sealing ring (5) is fixed inside the steel pipe body (1). Sealing caps (6) are threaded at both ends of the steel pipe body (1). Multiple guide grooves (7) are evenly arranged on the inner side wall of the steel pipe body (1). The anti-corrosion lubrication layer (2) is a composite coating of polytetrafluoroethylene layer (8) and nano silver particle layer (9). The cross-sectional shape of the guide groove (7) is semi-circular.

2. The corrosion-resistant, high-plasticity lubricating bearing steel pipe according to claim 1, characterized in that, The polytetrafluoroethylene layer (8) and the nano-silver particle layer (9) have thicknesses of 1 mm and 0.5 mm, respectively.

3. The corrosion-resistant, high-plasticity lubricating bearing steel pipe according to claim 1, characterized in that, The sealing ring (5) is made of rubber.

4. The corrosion-resistant, high-plasticity lubricating bearing steel pipe according to claim 1, characterized in that, The high-plasticity base layer (3) is made of alloy steel.

5. The corrosion-resistant, high-plasticity lubricating bearing steel pipe according to claim 1, characterized in that, The thickness of the external anti-corrosion layer (4) is 1.5 mm.

6. The corrosion-resistant, high-plasticity lubricating bearing steel pipe according to claim 1, characterized in that, The outer anti-corrosion layer (4) is a ceramic coating.

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