Device and method for measuring amount of lubricating grease in bearing and intelligent grease changing system for bearing

Abstract

The invention relates to a device and method for measuring the amount of lubricating grease in a bearing, and an intelligent grease changing system for a bearing. The device comprises a pressure air cavity and a communication pipeline which is used for connecting the pressure air cavity with an inner cavity of a to-be-measured bearing, and the communication pipeline or the bearing is provided withat least one switch valve which enables the bearing to be communicated with the atmosphere in a first state and disconnects the pressure air cavity from the bearing, and enables the bearing to be communicated with the atmosphere in a second state and disconnects the bearing from the atmosphere. The device for measuring the amount of lubricating grease in a bearing also comprises a pressure intensity sensor of the pressure air cavity which is connected with the pressure air cavity so as to measure the pressure intensity of air in the pressure air cavity. The invention provides the device and the method for measuring the amount of lubricating grease in a bearing which can realize measurement of the amount of the bearing internal lubricating grease without dismounting the bearing, and the bearing intelligent grease changing system using the device.

Description

technical field [0001] The invention relates to a device for measuring the amount of lubricating grease in a bearing, a measuring method and an intelligent grease changing system for bearings in the technical field of bearing safety. Background technique [0002] Bearing is an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Bearings are used in all walks of life. For example, in the field of wind power generators, bearings are the key components to maintain the normal operation of rotating parts, and the grease inside the bearing is an important medium to maintain the normal operation of the bearing. The grease inside the bearing The content has a great influence on the safe operation and life of the bearing. [0003] The existing control schemes for bearing lubrication basically inject grease regularly and quantitatively ...

AI Technical Summary

Problems solved by technology

[0003] The existing control scheme of bearing lubrication is basically based on the annual lubrication and grease injection amount of the bearing, regularly and quantitatively injecting grease to the bearing, which cannot guarantee that the grease in the bearing is kept within a reasonable range

When there is too much lubricating grease in the bearing, the temperature rise of the bearing will increase, which will cause the lubricating grease to leak or oxidize and deteriorate due to the softening of the lubricating grease; Premature wear, resulting in reduced bearing life

Therefore, the measurement of the amount of lubricating grease in the bearing is particularly important. In the prior art, there is a lack of methods and devices that can directly measure the amount of lubricating grease in the bearing. method and a detection device using this method", which can only detect whether there is grease in the bearing, but cannot detect the amount of grease in the bearing. In the prior art, in order to realize the detection of the amount of grease in the bearing, only by stopping the , and then disassemble the bearing for inspection, this method will undoubtedly affect normal production, and is time-consuming and laborious

In order to complete the detection of the amount of grease in the bearing, it is necessary to disassemble the bearing after shutdown, and collect and measure the grease. On the one hand, the shutdown detection will affect the normal operation of the equipment; in addition, the disassembly of the bearing will also affect the bearing life.

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