Wear-resistant high-temperature-resistant self-lubricating shaft sleeve
By using high-performance ceramic materials and bushings with embedded lubrication channels, combined with a pressure-sensitive sensor monitoring system, the problems of thermal deformation and insufficient lubrication of bushings under high-temperature environments have been solved, achieving self-lubrication and real-time monitoring, and improving the wear resistance and operational reliability of the equipment.
Patent Information
- Application Number
- CN202520001958.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing bushings are prone to thermal deformation and insufficient lubrication in high-temperature environments, resulting in severe equipment wear, high maintenance costs, and low production efficiency.
The bushing is made of high-performance ceramic material and has a network of tiny lubrication channels and pressure sensors inside. It is filled with high-temperature resistant lubricant and combined with a microprocessor monitoring system to achieve self-lubrication and real-time wear monitoring.
It provides continuous lubrication in high-temperature environments, reduces wear, provides timely alarms to prevent equipment failure, and improves equipment operation stability and production efficiency.
Smart Images
Figure CN223839559U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bushing technology, and in particular relates to a wear-resistant, high-temperature resistant, self-lubricating bushing. Background Technology
[0002] In numerous industrial sectors, such as machinery manufacturing, automotive, aerospace, and metallurgy, there are a large number of shaft-type transmission components. These components require bushings during operation to provide support, reduce friction, and provide positioning. For example, in automotive engines, bushings in critical components such as crankshafts are subjected to high temperatures, high speeds, and complex stress conditions over extended periods. Some transmission bushings in metallurgical equipment operate in extremely high-temperature environments and experience significant wear. Conventional bushings are insufficient to meet the demands of long-term stable operation, thus necessitating the use of wear-resistant, high-temperature-resistant, and self-lubricating bushings to ensure optimal equipment performance.
[0003] Traditional bushing materials and designs often have shortcomings. While some metal bushings have good strength, they are prone to thermal deformation at high temperatures, affecting fit accuracy. Moreover, lubrication relies on periodic external grease additions; if the grease supply is untimely or fails at high temperatures, it will cause severe wear and shorten service life. Although some materials in non-metallic bushings have a certain degree of self-lubrication, their wear resistance and high-temperature resistance are poor, making them unable to adapt to harsh working conditions. They are easily damaged under high temperature and high load operation, leading to increased equipment maintenance costs, longer downtime, and a decline in overall production efficiency. Utility Model Content
[0004] The technical problem this invention aims to solve is that existing equipment is prone to thermal deformation under high-temperature conditions.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wear-resistant, high-temperature resistant, self-lubricating bushing, wherein a high-performance ceramic material is selected as the base material of the bushing, and a monitoring system is embedded inside the bushing.
[0006] Furthermore, the bushing has crisscrossing micro-lubrication channels inside, with uniform aperture and smooth inner wall.
[0007] Furthermore, flange structures are provided at both ends of the bushing, and mounting holes are provided on one side of the flange.
[0008] Furthermore, the monitoring system includes a enclosure, a support sleeve, and a sleeve. The enclosure is fixed to the support sleeve and threaded to the other end of the bushing. The enclosure is fixed to the inside of the support sleeve. The sleeve is fitted onto the enclosure. A spring is provided between the sleeve and the support sleeve. A pressure-sensitive sensor is fixed inside the support sleeve.
[0009] Furthermore, one end of the spring is in contact with the pressure sensor, and the other end of the spring is in contact with the sleeve.
[0010] Furthermore, a microprocessor is provided on the outside of the bushing, and the pressure sensor is electrically connected to the microprocessor via a wire.
[0011] Furthermore, an annular groove is provided on the outer side of the bushing, and a liquid injection port is provided through the annular groove.
[0012] The beneficial effects of this utility model after adopting the above structure are as follows:
[0013] (1) A network of crisscrossing micro-lubricating channels is carefully designed inside the bushing. These channels are made using precision technologies such as laser micromachining to ensure that their apertures are uniform and their inner walls are smooth. The channels are filled with a solid lubricant that is resistant to high temperature and has high lubricity. During the operation of the bushing, as the heat generated by friction and the compression of the shaft are applied, the lubricant can slowly and evenly seep out to the friction surface, providing continuous lubrication.
[0014] (2) By setting pressure-sensitive sensors, the wear degree inside the bushing can be monitored in real time. The sensor data can be transmitted to the external monitoring terminal through the wireless transmission module. Once the wear exceeds the threshold, an alarm can be issued in time, which will facilitate the staff to maintain or replace it in time and ensure the normal operation of the equipment as a whole. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the half-section structure of this utility model.
[0019] In the attached diagram: 1. Bushing, 2. Channel, 3. Flange structure, 4. Mounting hole, 5. Enclosure, 6. Support sleeve, 7. Sleeve, 8. Spring, 9. Annular groove, 10. Injection port. Detailed Implementation
[0020] like Figure 1 As shown, a wear-resistant and high-temperature self-lubricating bushing is provided. High-performance ceramic material is selected as the base material of bushing 1. A monitoring system is embedded inside bushing 1. An annular groove 9 is provided on the outer side of bushing 1, and an injection port 10 is provided through the annular groove 9.
[0021] The bushing 1 has a network of crisscrossing micro-lubrication channels 2 inside, with uniform apertures and smooth inner walls. Flange structures 3 are located at both ends of the bushing 1, with mounting holes 4 on one side of the flange. These channels 2 are meticulously designed using precision technologies such as laser micromachining to ensure uniform apertures and smooth inner walls. The channels 2 are filled with a high-temperature resistant, high-lubricity solid lubricant. During the operation of the bushing 1, the lubricant slowly and evenly seeps to the friction surfaces due to the heat generated by friction and the pressure of the shaft, providing continuous lubrication.
[0022] like Figure 2-3 As shown, the monitoring system includes a enclosure 5, a support sleeve 6, and a sleeve 7. The enclosure 5 is fixed to the support sleeve 6 and threaded to the other end of the bushing 1. The enclosure 5 is fixed to the inside of the support sleeve 6. The sleeve 7 is sleeved on the enclosure 5. A spring 8 is provided between the sleeve 7 and the support sleeve 6. A pressure sensor is fixed inside the support sleeve 6.
[0023] One end of the spring 8 is in contact with the pressure sensor, and the other end of the spring 8 is in contact with the sleeve 7. The bushing 1 is equipped with a microprocessor. Through the setting of the pressure sensor, the wear degree inside the bushing 1 is monitored in real time. The sensor data can be transmitted to the external monitoring terminal through the wireless transmission module. Once the wear exceeds the threshold, an alarm can be issued in time, which can facilitate the staff to perform maintenance or replacement in time and ensure the normal operation of the equipment as a whole.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A wear-resistant, high-temperature-resistant, self-lubricating bushing, characterized in that: High-performance ceramic material is selected as the base material of the bushing. A monitoring system is embedded inside the bushing. The bushing has crisscrossing micro lubrication channels with uniform aperture and smooth inner wall.
2. The wear-resistant, high-temperature-resistant, self-lubricating bushing according to claim 1, characterized in that: The bushing is provided with flange structures at both ends, and a mounting hole is provided on one side of the flange.
3. The wear-resistant, high-temperature-resistant, self-lubricating bushing according to claim 1, characterized in that: The monitoring system includes a fence, a support sleeve, and a sleeve. The fence is fixed to the support sleeve and threaded to the other end of the bushing. The fence is fixed to the inside of the support sleeve. The sleeve is fitted onto the fence. A spring is provided between the sleeve and the support sleeve. A pressure sensor is fixed inside the support sleeve.
4. The wear-resistant, high-temperature-resistant, self-lubricating bushing according to claim 3, characterized in that: One end of the spring is in contact with the pressure sensor, and the other end of the spring is in contact with the sleeve.
5. The wear-resistant, high-temperature-resistant, self-lubricating bushing according to claim 3, characterized in that: The bushing is equipped with a microprocessor, and the pressure sensor is electrically connected to the microprocessor via a wire.
6. The wear-resistant, high-temperature-resistant, self-lubricating bushing according to claim 1, characterized in that: The bushing has an annular groove on its outer side, and a liquid injection port is opened through the annular groove.