Roadheader Hob Bearing Assembly with Composite Sensor

Abstract

The invention relates to a bearing assembly with a compound sensor of a heading machine hob, belonging to the field of tunnel construction machinery, and relating to a bearing assembly of a heading machine hob which adopts various compound sensor devices, is integrated with a bearing, and can effectively extract fault signals of the bearing. The bearing assembly is formed by integrating a tapered roller bearing and a compound sensor device installed on the bearing, wherein the compound sensor device is formed by integrating various sensors and transitional rings, and the various sensors consist of acceleration sensors, temperature sensors and speed sensors which are all embedded into the transitional rings, and output sensor signals through respective cables. The integrated bearing assembly can monitor own working performance in real time, and in the event of a failure, the bearing assembly can transmit an alarm signal to a mechanical control system in a timely manner, so as to find early fault of the bearing as early as possible, take measures timely, and prolong the working life of the bearing and the hob. The bearing assembly can be produced and sold as an independent product so as to be convenient for a user to use.

Description

Technical field: [0001] The invention belongs to the field of tunnel construction machinery, and relates to a roadheader hob bearing assembly which adopts multiple composite sensor devices and is integrated with a bearing and can effectively extract bearing fault signals. Background technique: [0002] The hob is a tool for the roadheader to break rocks. It is the key component and wearing part of the roadheader, and it is the most consumed consumable during the use of the roadheader. Because if the damage of a hob is not detected in time and repaired and replaced, it is easy to cause rapid failure of the surrounding adjacent hobs. It is expensive to replace the failed tools. Generally, when excavating a 10km hard rock tunnel, the consumption of tools will account for about 30% of the price of the whole machine. However, the bearings, which are the bearing parts and key components of the hob, are usually in harsh environments with dynamic loads and vibrations, and are very ...

AI Technical Summary

Problems solved by technology

However, key issues such as the reasonable arrangement of sensor elements on the bearing limit the embedded application.

[0004] For the hob bearing of the roadheader, due to the harsh geological conditions, the vibration of the hob bearing is relatively large, and the vibration signal must be detected to prevent huge economic losses

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