Method for improving self-lubrication of large-scale bearing by macromolecular material

Abstract

The invention relates to a method for using macromolecule material to improve the lubrication of large slide bearing. Based on large self-lubricate sliding bearing whose axial diameter is larger than 500mm, it uses several PEEK materials in 200mmX500mm to assemble to be mounted on the bush of large sliding bearing. The method comprises: using single sinter technique to process inner diameter of bush; using adhesive, copper basic plate and copper powder layer as base to sinter and fix the PEEK material; and using fixing bolt to fix and stuffing with babbit alloy. The invention seamless assembly, copper base sintering, and sunk screw to fix two layers to assemble the PEEK material on the inner diameter of bush, to confirm the self lubrication of large sliding bearing.

Description

technical field

[0001] The invention relates to a method in the technical field of mechanical bearings. Specifically, it designs a method for improving the self-lubrication of large sliding bearings by using polymer materials. Background technique

[0002] Large sliding bearings are widely used in large rotary machinery, such as large ball mills, rotary kilns, ship propulsion motors, coolers, etc. For this type of bearing with heavy load and low speed, establishing a safe and reliable lubricating oil film and self-lubricating protection is the focus of research in recent years. A lot of research has been done on sliding bearings at home and abroad, and some design schemes have been proposed, including mechanical lubrication of large sliding bearings and self-lubrication of bearings. Polymer materials (PEEK materials) are a new field of the third generation of polymer materials that were successfully researched and developed in the early 1970s after general-purpose plastics ...

Examples

Embodiment

[0014] Before the PEEK material 6 is assembled, perform a performance test on the PEEK material 6 . In the present invention, the PEEK material 6 is assembled on the bearing bush 2 with an inner diameter of 35 mm (two identical sets are made), and one set of the experimental bearing bush 2 equipped with the PEEK material 6 is immersed in oil. According to the load conditions in the application of PEEK material 6 large-scale sliding bearings, the load of PEEK material 6 performance test is determined to be 5MP load and the line speed is 2.1m / s, and the test is stopped after 120 hours of continuous operation; , The wear amount and friction coefficient of PEEK material 6 were sampled and recorded, and the oil-immersed lubrication experiment of PEEK material 6 was completed. Another set of experimental bearing bush 2 equipped with PEEK material 6 was soaked in oil at one time, and the dry friction test was also carried out under the conditions of 5MP load and line speed of 2.1m / s,...

technical field

[0001] The invention relates to a method in the technical field of mechanical bearings. Specifically, it designs a method for improving the self-lubrication of large sliding bearings by using polymer materials. Background technique

[0002] Large sliding bearings are widely used in large rotary machinery, such as large ball mills, rotary kilns, ship propulsion motors, coolers, etc. For this type of bearing with heavy load and low speed, establishing a safe and reliable lubricating oil film and self-lubricating protection is the focus of research in recent years. A lot of research has been done on sliding bearings at home and abroad, and some design schemes have been proposed, including mechanical lubrication of large sliding bearings and self-lubrication of bearings. Polymer materials (PEEK materials) are a new field of the third generation of polymer materials that were successfully researched and developed in the early 1970s after general-purpose plastics ...

Examples

Embodiment

[0014] Before the PEEK material 6 is assembled, perform a performance test on the PEEK material 6 . In the present invention, the PEEK material 6 is assembled on the bearing bush 2 with an inner diameter of 35 mm (two identical sets are made), and one set of the experimental bearing bush 2 equipped with the PEEK material 6 is immersed in oil. According to the load conditions in the application of PEEK material 6 large-scale sliding bearings, the load of PEEK material 6 performance test is determined to be 5MP load and the line speed is 2.1m / s, and the test is stopped after 120 hours of continuous operation; , The wear amount and friction coefficient of PEEK material 6 were sampled and recorded, and the oil-immersed lubrication experiment of PEEK material 6 was completed. Another set of experimental bearing bush 2 equipped with PEEK material 6 was soaked in oil at one time, and the dry friction test was also carried out under the conditions of 5MP load and line speed of 2.1m / s,...

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