Sliding bearing assembly

Patent metadata

Field	Value
Publication number	US-11268576-B2
Application number	US-201917272307-A
Country	US
Kind code	B2
Filing date	Aug 26, 2019
Priority date	Aug 29, 2018
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A sliding bearing assembly includes at least one sliding bearing element which is arranged in a bearing receptacle that is part of a bearing structure having at least one sensor connected to a data transmission device for data transmission to a receiver of the data, and to an energy generating device. The energy generating device supplies the sensor and/or the data transmission device with electrical energy in a self-sufficient manner, and may include a piezo element which is pretensioned under pressure. In some embodiments, the energy generating device is the sensor.

First claim

The invention claimed is:

1. A sliding bearing assembly comprising:
at least one sliding bearing element which is arranged in a bearing receptacle, the bearing receptacle being part of a bearing structure, and the bearing structure having at least one sensor connected to a data transmission device for data transmission to a receiver of the data, and having an energy generating device for supplying the sensor and the data transmission device with electrical energy in a self-sufficient manner, wherein
the energy generating device has at least one piezo element and the energy generating device is the sensor, and
the piezo element is acted upon by a lubricant pressure in a lubrication gap between the sliding bearing element and a shaft or a bearing receptacle, for which purpose the sensor is arranged in the lubrication gap of the sliding bearing assembly as part of a sliding layer of the sliding bearing element or is hydrostatically connected to the lubrication gap.

2. The sliding bearing assembly according to claim 1 , wherein the piezo element is connected to a seismic mass.

3. The sliding bearing assembly according to claim 1 wherein the piezo element is pretensioned under pressure.

4. The sliding bearing assembly according to claim 1 , wherein the bearing structure is a connecting rod with a connecting rod shank, and the data transmission device is arranged on or at least partially in the connecting rod shank.

5. A method for monitoring a sliding bearing element in a sliding bearing receptacle of a sliding bearing assembly with at least one sensor, wherein a measured value is detected with the sensor and this measured value is forwarded to a data transmission device for data transmission to a receiver of the data, the method comprising:
generating electrical energy for the sensor and the data transmission device by the movement of the sliding bearing element or the sliding bearing assembly via at least one piezo element implemented as a sensor so that the generation of the electrical energy takes place with the sensor, wherein the sensor is arranged in a lubrication gap of the sliding bearing assembly as part of a sliding layer of the sliding bearing element or is hydrostatically connected to the lubrication gap and the pressure in the lubrication gap is measured with the sensor.

6. The method according to claim 5 , wherein the piezo element is pretensioned under pressure.

Assignees

• Miba Gleitlager Austria Gmbh

Inventors

• Hager Gunther
• Hamdard Kamal
• Schallmeiner Stefan

Classifications

• G01L5/0019

  by using strain gages, piezoelectric, piezo-resistive or other ohmic-resistance based sensors · CPC title

• F16C41/008 Primary

  Identification means, e.g. markings, RFID-tags; Data transfer means · CPC title

• F16C17/24

  with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety · CPC title

• H04Q2209/886

  using energy harvesting, e.g. solar, wind or mechanical · CPC title

• F16C41/004

  Electro-dynamic machines, e.g. motors, generators, actuators · CPC title