JPS57166545A - Measuring device for sharpness of grindstone by coefficient of friction - Google Patents

Measuring device for sharpness of grindstone by coefficient of friction

Info

Publication number
JPS57166545A
JPS57166545A JP5166681A JP5166681A JPS57166545A JP S57166545 A JPS57166545 A JP S57166545A JP 5166681 A JP5166681 A JP 5166681A JP 5166681 A JP5166681 A JP 5166681A JP S57166545 A JPS57166545 A JP S57166545A
Authority
JP
Japan
Prior art keywords
grindstone
friction
coefficient
roller
sharpness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5166681A
Other languages
Japanese (ja)
Inventor
Kazuo Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP5166681A priority Critical patent/JPS57166545A/en
Publication of JPS57166545A publication Critical patent/JPS57166545A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

PURPOSE:To measure the coefficient of friction and sharpness of a grindstone by pressing a soft and elastic roller against the working surface of a grindstone, and then measuring the turning speed of the roller when the grindstone rotates. CONSTITUTION:A roller 1 made of a material which has adequate elasticity and softness like fluororesin and less cohesion friction is fitted to a lever 3 thorugh a shaft 2 and a bearing, and then pressed against the working surface 5 of a grindstone during rotation with the know load of a weight 4. Consequently, its frictional force turns the roller 1 and a small-sized generator 7 which has a resistance R generates electricity through the shaft 2 and a flexible shaft 6. The electric output of the generator 7 is supplied to a voltmeter V to measure an output voltage E, and also supplied to an ammeter A to measure a current I, thereby finding the product EXI of them. A value obtained by dividing the electric output by the efficiency of the generator 7 is equal to the frictional force, and a coefficient of friction is therefore found. Then, the sharpness of the grindstone is measured from the coefficient of friction.
JP5166681A 1981-04-08 1981-04-08 Measuring device for sharpness of grindstone by coefficient of friction Pending JPS57166545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5166681A JPS57166545A (en) 1981-04-08 1981-04-08 Measuring device for sharpness of grindstone by coefficient of friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5166681A JPS57166545A (en) 1981-04-08 1981-04-08 Measuring device for sharpness of grindstone by coefficient of friction

Publications (1)

Publication Number Publication Date
JPS57166545A true JPS57166545A (en) 1982-10-14

Family

ID=12893198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5166681A Pending JPS57166545A (en) 1981-04-08 1981-04-08 Measuring device for sharpness of grindstone by coefficient of friction

Country Status (1)

Country Link
JP (1) JPS57166545A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11105732B2 (en) * 2017-03-29 2021-08-31 Conopco, Inc. Apparatus and method for measuring wet friction of hair
US11879831B2 (en) 2017-03-29 2024-01-23 Conopco, Inc. Method for measuring wet friction of hair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11105732B2 (en) * 2017-03-29 2021-08-31 Conopco, Inc. Apparatus and method for measuring wet friction of hair
US11879831B2 (en) 2017-03-29 2024-01-23 Conopco, Inc. Method for measuring wet friction of hair

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