Test table used for studying friction vibration energy recycling efficiency

A technology of energy recovery efficiency and friction vibration, applied in vibration testing, testing of machine/structural components, measuring devices, etc., can solve problems such as the difficulty of rational utilization of friction and vibration, and achieve easy miniaturization, no electromagnetic interference, and energy conversion. high rate effect

Pending Publication Date: 2018-06-22
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on the use and collection of frictional vibration, especially the research on the energy recovery efficiency of frictional vibration under different working conditions, so that it is difficult to use a large amount of frictional vibrational energy reasonably stand up

Method used

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  • Test table used for studying friction vibration energy recycling efficiency
  • Test table used for studying friction vibration energy recycling efficiency
  • Test table used for studying friction vibration energy recycling efficiency

Examples

Experimental program
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Embodiment

[0038] figure 1 Shown is a test bench for studying the energy recovery efficiency of friction vibration, which is composed of a machine base 4, a motor module 3, and a loading module 1; the machine base 4 is provided with multiple parallel inverted T-shaped notches; the motor module 3 has a structure of : the hollow support 21 is surrounded by the left and right side vertical plates, the upper top plate and the lower base plate, the servo motor 20 is installed on the bottom of the lower base plate of the hollow support 21, and the output shaft of the servo motor is connected from the top of the hollow support 21 Stretch out in the hole on the top plate, the brake disc 19 is fixed on the flange 18 through bolts, and the flange is fixed on the output shaft of the servo motor, (see Figure 3A, the lower flange is welded on the upper end of the output shaft of the servo motor, and the brake disc is fixed on the lower flange by bolts through the upper flange) on the inverted T-sha...

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Abstract

The invention provides a test table used for studying friction vibration energy recycling efficiency. In a motor module, a hollow support base is fixed on a machine base in a movable manner, a servo motor is mounted in the hollow support base and a brake disc is fixed on the upper portion of a motor output shaft. In a loading module, two support boards are fixed on the machine base in a movable manner; a hydraulic cylinder is mounted on a top board above the two support boards; a hydraulic cylinder guide rod protrudes from a linear bearing downwards; a normal force sensor, a tangential force sensor and a brake block are connected to the guide rod in sequence; piezoelectric elements are fixed on spring steel sheets on three side faces of the brake block while a three-dimensional acceleration sensor is fixed on the last side face. According to the invention, brake loading pressure, brake disc rotation speed, friction diameter and the like are changed according to practical working conditions and influence on friction vibration energy recycling efficiency by different working conditions is studied through verifying piezoelectric type friction vibration energy collection feasibility through electric signals collected in tests.

Description

technical field [0001] The invention relates to the technical field of energy harvesting devices, in particular to a test device for studying the energy recovery efficiency of friction vibration. Background technique [0002] With the vigorous development and consumption of non-renewable petrochemical energy in modern industry, the energy problem has gradually attracted the attention of the whole world. People realize that although there are various energy sources in nature, most of them have not been developed and utilized on a large scale at present, such as solar energy, wind energy, vibration energy, etc. How to develop and utilize these energies has become the focus of researchers' research. After a lot of research and experiments, they finally realized the conversion of these energies into electrical energy and then utilized them. For example, solar energy is converted into electrical energy through photoelectric conversion; wind kinetic energy is converted into mecha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/06
CPCG01M7/06
Inventor 莫继良汪小凡王东伟赵婧张琦周仲荣
Owner SOUTHWEST JIAOTONG UNIV
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