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Full-self-powered roller bearing internal induction data acquisition and wireless transmission device

A technology of sensing data and rolling bearings, which is applied in bearing assembly, ball bearings, bearing components, etc., can solve the problems that can only be monitored between moving parts in bearings, is not applicable, and cannot be monitored by non-contact methods, and achieves structural Simple, low power consumption, simplified circuit effect

Inactive Publication Date: 2019-12-10
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the bearing structure, it is generally not possible to use a non-contact method to monitor the state inside the bearing. Only sensors can be installed between the moving parts in the bearing, or even on the moving parts to obtain state information. In this way, the sensor and its data must be solved. The power supply and data output link problems of the acquisition circuit, because cables connected to the power supply, or battery power supply, and data wired transmission are not suitable for bearing working conditions

Method used

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  • Full-self-powered roller bearing internal induction data acquisition and wireless transmission device
  • Full-self-powered roller bearing internal induction data acquisition and wireless transmission device
  • Full-self-powered roller bearing internal induction data acquisition and wireless transmission device

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Experimental program
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Effect test

Embodiment 1

[0029] see figure 1 and Figure 5 , figure 1 It is a schematic diagram of the principle structure of Embodiment 1 of the internal sensing data acquisition and wireless transmission device of the fully self-powered rolling bearing of the present invention, Figure 5 It is a schematic cross-sectional view of the installation of the first embodiment of the self-powered rolling bearing internal sensing data acquisition and wireless transmission device of the present invention on the bearing. It can be seen from the figure that the present invention fully self-powered rolling bearing internal sensing data acquisition and wireless transmission device, the bearing Including bearing inner ring 1, bearing rolling body 2, rolling body cage 3, bearing outer ring 4, sensor and its conditioning circuit, sensor data acquisition circuit and sensor data output circuit composed of sensing data acquisition / output A device 9, a self-powered power supply and a wireless signal repeater 8 compose...

Embodiment 2

[0042] The electric energy generator in this embodiment is composed of permanent magnet arrays distributed at equal intervals and without contact between the magnets.

Embodiment 3

[0044] The electric energy generator of this embodiment is formed by Halbach permanent magnet array.

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Abstract

The invention discloses a full-self-powered roller bearing internal induction data acquisition and wireless transmission device. The full-self-powered roller bearing internal induction data acquisition wireless transmission device is characterized in that a bearing comprises a bearing inner ring, bearing rollers, retaining racks for the rollers and a bearing outer ring; the full-self-supplying roller bearing internal induction data acquisition wireless transmission device is also characterized by further comprising a sensor and a regulation circuit thereof, an induction data acquisition / outputdevice consisting of an induction data acquisition circuit and an induction data wireless outputting circuit, a self-powering power consisting of an energy acquisition loop, a power generator and a power management circuit and a wireless signal repeater. By adopting the full-self-powered roller bearing internal induction data acquisition and wireless transmission device, bearing internal induction data acquisition and wireless transmission can be realized; external powers or batteries are not needed for power supplying by the whole device; internal state data in the bearing can be automatically acquired as long as the bearing is at a working state; and when induction data can be wirelessly transmitted when being inquired wirelessly by an inquirer out of the bearing.

Description

technical field [0001] The invention relates to a rolling bearing, in particular to a fully self-powered wireless transmission device for collecting sensing data inside the rolling bearing. Background technique [0002] Bearings are the core moving parts of mechanical systems. Realizing the condition monitoring of bearings is of great value to the product quality of mechanical manufacturing systems and the operation safety of mechanical motion systems. Since the bearing is a moving part, the technical difficulty of state monitoring is to directly obtain the state information of the moving body. Due to the limitations of the bearing structure, it is generally not possible to use a non-contact method to monitor the state inside the bearing. Only sensors can be installed between the moving parts in the bearing, or even on the moving parts to obtain state information. In this way, the sensor and its data must be solved. The power supply and data output link problems of the acqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/02F16C41/00
CPCF16C19/02F16C41/00F16C41/004
Inventor 李平文玉梅
Owner SHANGHAI JIAO TONG UNIV