Slewing bearing with overload alarming function

Abstract

A slewing bearing with an overload alarming function is characterized by comprising a slewing bearing body (7), the slewing bearing body comprises an inner ring (2) and an outer ring (1), and the slewing bearing further comprises a first data collecting module (4), a second data collecting module (6), a first strain gage set (1) and a second strain gage set (2); and the first strain gage set (1) and the second strain gage set (2) are symmetrically bonded to the inner ring (2), and the angle difference of the two strain gage sets is 180 degrees. The disclosed slewing bearing with the overload alarming function is composed of the slewing bearing body, the collecting modules and strain gages. The collecting modules process and display data in real time, the overload alarming function is achieved, and the alarming value can be set according to the work condition of the slewing bearing. The system can monitor force exerted on the slewing bearing online during work and can monitor the health state of the slewing bearing, a reliable basis is provided for reasonable maintaining and monitoring of the slewing bearing, sudden accidents are avoided, and heavy economic and social benefit losses are avoided.

Description

technical field [0001] The invention relates to a slewing support with an overload alarm function. Background technique [0002] The slewing ring is a kind of oversized bearing, usually with transmission teeth on the inner ring or outer ring, which meshes with the drive gear to transmit torque power, but in some occasions, the gear teeth may not be needed, and it is only used to realize mechanical parts The relative rotational movement between them is therefore also called a slewing bearing. Due to the special mechanical structure of the slewing ring, it has been widely used in construction machinery, mining machinery, medical machinery and other machinery that needs to achieve relative rotary motion, such as excavators, cranes, dredgers, tunnel boring machines, etc., and Gradually extended to transport machinery, military equipment (tanks, radar), fans, rotating entertainment facilities and other related fields. [0003] Taking hoisting machinery equipment as an example, ...

AI Technical Summary

Problems solved by technology

The working environment of the slewing ring is usually harsh, the working frequency is high, and it has the characteristics of heavy load and low speed. It can bear large axial and radial loads and overturning moments at the same time, and sometimes it is also affected by large impact loads during operation. In addition, there will be unavoidable initial defects in the blank material itself, so it is very easy to cause damage to the slewing bearing, and if the bearing load of the bearing is not fully considered in the mechanical design stage, and the personnel operate improperly, overloading will occur, causing The rolling element is broken, the raceway is cracked or even peeled off, which affects the normal operation of the slewing bearing and leads to major safety accidents. Moreover, the replacement or repair of the slewing bearing takes a long time, is inconvenient to maintain, and is difficult to disassemble and assemble. High, once a fault occurs and the equipment is shut down, it will inevitably affect the implementation of the project and cause huge losses

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