Three-point bending fatigue testing machine

A fatigue testing machine, three-point bending technology, applied in the direction of testing the strength of materials by applying a stable bending force, to achieve the effect of simple structure, low cost and strong practicability

Active Publication Date: 2015-12-23
HARBIN ENG UNIV
View PDF10 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of three-point bending fatigu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-point bending fatigue testing machine
  • Three-point bending fatigue testing machine
  • Three-point bending fatigue testing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] The invention relates to the technical field of detection equipment, and is mainly applicable to the three-point bending fatigue performance detection of a sample, in particular to the three-point bending fatigue performance detection of a higher frequency (30-300 Hz) loading mode with adjustable loading conditions.

[0014] The purpose of the present invention is to provide a three-point bending fatigue testing machine for the deficiencies of the existing three-point bending fatigue testing technology, which solves the problems of the current three-point bending fatigue testing, such as excessive volume, high price, complex equipment structure, and inability to At the same time, adjust the loading amplitude and pre-stress. A three-point bending fatigue testing machine of the present invention is simple in structure and low in ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a three-point bending fatigue testing machine which comprises an alternating current servo motor, a rotary table, a bearing, a transmission device, a guide rail, a spring sleeve assembly, a force sensor, a pressing head, a fixture and a test bench bed. The alternating current servo motor is fixedly arranged on the test bench bed and connected with the transmission device through the rotary table. One end of the transmission device is sleeved with the bearing, and the other end of the transmission device is connected with the spring sleeve assembly. The spring sleeve assembly is fixedly connected with the force sensor through bolts. The other side of the force sensor is fixedly connected with the pressing head through bolts. The fixture is fixedly arranged on the test bench bed and can be manually adjusted to be folded and unfolded and lifted. The three-point bending fatigue testing machine is simple in structure, low in cost and capable of conducting three-point bending fatigue tests according to different specifications, the pre-applied force and the loading amplitude are freely adjusted, a loading mode of high frequency can be met, and practicability is high.

Description

technical field [0001] The invention relates to a testing machine, in particular to a three-point bending fatigue testing machine, which belongs to the technical field of testing equipment. Background technique [0002] In the application of engineering materials, their mechanical properties are generally tested. In addition to the conventional mechanical properties, the fatigue performance of materials is also a very important indicator. When a material or component is subjected to repeated or alternating loads, although the load amplitude of the material or component is much smaller than its tensile strength or yield The strength is even less than the elastic load, but after repeated deformation and accumulation, the final fracture damage is usually caused by fatigue load. According to statistics, about 50-90% of mechanical structure damage is fatigue damage, and the phenomenon of fatigue damage is extremely widespread. [0003] At present, most of the three-point bending...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N3/20
Inventor 曲嘉孙晓庆李东昌黄超陈森夏培秀
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap