Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Automatic force adjustment device for micro-Vickers hardness meter

A technology of Vickers hardness tester and adjustment device, applied in the direction of testing material hardness, etc., can solve the problems of weight rod impact, uneven rotation speed, dislocation of weight rod, etc.

Active Publication Date: 2012-11-21
SHANGHAI AOLONG XINGDI TESTING INSTR
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hand wheel of the weight cannot be guaranteed to rotate at a constant speed during manual operation, the weight will inevitably impact the weight rod during rotation.
If the rotation speed is uneven, it may even cause the weight rod to dislocate
In addition, the impact will cause mechanical damage to the instrument, thus affecting the measurement accuracy of the instrument and the service life of the instrument

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
  • Automatic force adjustment device for micro-Vickers hardness meter
  • Automatic force adjustment device for micro-Vickers hardness meter
  • Automatic force adjustment device for micro-Vickers hardness meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail, by figure 1 , figure 2 and image 3 As shown in the structural diagram of the automatic force value adjustment device of the micro-Vickers hardness tester of the present invention, the bottom plate 1 is fixed on the micro-Vickers hardness tester by screws, and the motor support 2 is fixed on the bottom plate 1. The motor support 2 The permanent magnet capacity-splitting synchronous motor 3 is fixed by screws, the permanent magnet capacity-separation synchronous motor 3 provides power for the loading and unloading cam 25, the loading and unloading cam 25 is in movable contact with the lever 26, and the loading and unloading cam 21 is fixed on the electronic coupling by screws 4, the electronic coupling 4 is connected to the motor shaft of the permanent magnet capacitive synchronous motor 3 through pins, wherein the disc shaft 5 is fixed on the electroni...

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 discloses an automatic force adjustment device for a micro-Vickers hardness meter. The automatic force adjustment device comprises a force adjustment unit and a handle. The handle is fixed to the force adjustment unit. The automatic force adjustment device is characterized in that the automatic force adjustment device comprises a variable load control board, a permanent-magnet synchronous motor, a variable load motor connection shaft and a variable load optical disk; the variable load control board controls the permanent-magnet synchronous motor to work by signals; the permanent-magnet synchronous motor is connected to the variable load optical disk by the variable load motor connection shaft; and a rotation speed of the permanent-magnet synchronous motor is in a range of 6-10 r / min. The automatic force adjustment device for a micro-Vickers hardness meter prevents that in manual rotation, over-fast falling of a weight is caused by weight gravity so that the weight impacts on a weight bar, and thoroughly solves the problem that the impact produced by loading force conversion influences measurement accuracy and a service life of an instrument.

Description

technical field [0001] The invention relates to a micro Vickers hardness tester, in particular to an automatic force value adjusting device of the micro Vickers hardness tester. Background technique [0002] The way to adjust the force value of the micro Vickers hardness tester produced by domestic manufacturers is manual. If the user needs to change the current loading force value of the hardness tester, the user needs to rotate the weight handwheel to the corresponding scale of the required force value and then enter the working interface from the control panel. The whole adjustment process is purely mechanical. Since the hand wheel of the weight cannot be guaranteed to rotate at a uniform speed during manual operation, the weight will inevitably impact the weight rod when rotating. If the rotation speed is uneven, it may even cause the weight rod to dislocate. In addition, the impact will cause mechanical damage to the instrument, thereby affecting the measurement accu...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/42
Inventor 李义彬王林祥叶飞
Owner SHANGHAI AOLONG XINGDI TESTING INSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com