ELECTRICALLY-DRIVEN ROTARY ACTUATOR

PROBLEM TO BE SOLVED: To securely remove a backlash even when gear precision is inferior.SOLUTION: A pair of driving-side spur gears 2, 3 are rotated by stepping motors 4, 5, and rotor shafts 4a, 5a of the pair of stepping motors 4, 5 are mutually set so that tooth faces thereof come into contact wi...

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Hauptverfasser:	SAWADA KEN, HASHIGUCHI KENJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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creator	SAWADA KEN HASHIGUCHI KENJI
description	PROBLEM TO BE SOLVED: To securely remove a backlash even when gear precision is inferior.SOLUTION: A pair of driving-side spur gears 2, 3 are rotated by stepping motors 4, 5, and rotor shafts 4a, 5a of the pair of stepping motors 4, 5 are mutually set so that tooth faces thereof come into contact with tooth faces of a driven-side spur gear 1 mutually on the opposite side in a no-load state. The stepping motors 4, 5 are synchronously driven and the driven-side spur gear 1 is driven by the driving-side spur gears 2, 3 to mutually removes backlashes between the driving-side spur gears 2, 3 and the driven-side spur gear 1. In-phase coils 4A, 5a and 4B, 5B of the stepping motors 4, 5 are connected in series, and motor driving circuits 7A, 8A synchronously drive and rotate the rotor shafts 4a, 5a of the stepping motors 4, 5 while giving a predetermined phase difference. A rotary encoder 6 which detects rotations of only one of the stepping motors 4, 5 is attached to the stepping motor and then the driving-side spur gears 2, 3 have the mutual tooth faces brought into contact at the same place in a peripheral direction of the driven-side spur gear 1.
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The stepping motors 4, 5 are synchronously driven and the driven-side spur gear 1 is driven by the driving-side spur gears 2, 3 to mutually removes backlashes between the driving-side spur gears 2, 3 and the driven-side spur gear 1. In-phase coils 4A, 5a and 4B, 5B of the stepping motors 4, 5 are connected in series, and motor driving circuits 7A, 8A synchronously drive and rotate the rotor shafts 4a, 5a of the stepping motors 4, 5 while giving a predetermined phase difference. A rotary encoder 6 which detects rotations of only one of the stepping motors 4, 5 is attached to the stepping motor and then the driving-side spur gears 2, 3 have the mutual tooth faces brought into contact at the same place in a peripheral direction of the driven-side spur gear 1.</description><language>eng</language><subject>BLASTING ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; ENGINEERING ELEMENTS AND UNITS ; GEARING ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; GENERATION ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131219&DB=EPODOC&CC=JP&NR=2013255344A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131219&DB=EPODOC&CC=JP&NR=2013255344A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAWADA KEN</creatorcontrib><creatorcontrib>HASHIGUCHI KENJI</creatorcontrib><title>ELECTRICALLY-DRIVEN ROTARY ACTUATOR</title><description>PROBLEM TO BE SOLVED: To securely remove a backlash even when gear precision is inferior.SOLUTION: A pair of driving-side spur gears 2, 3 are rotated by stepping motors 4, 5, and rotor shafts 4a, 5a of the pair of stepping motors 4, 5 are mutually set so that tooth faces thereof come into contact with tooth faces of a driven-side spur gear 1 mutually on the opposite side in a no-load state. The stepping motors 4, 5 are synchronously driven and the driven-side spur gear 1 is driven by the driving-side spur gears 2, 3 to mutually removes backlashes between the driving-side spur gears 2, 3 and the driven-side spur gear 1. In-phase coils 4A, 5a and 4B, 5B of the stepping motors 4, 5 are connected in series, and motor driving circuits 7A, 8A synchronously drive and rotate the rotor shafts 4a, 5a of the stepping motors 4, 5 while giving a predetermined phase difference. A rotary encoder 6 which detects rotations of only one of the stepping motors 4, 5 is attached to the stepping motor and then the driving-side spur gears 2, 3 have the mutual tooth faces brought into contact at the same place in a peripheral direction of the driven-side spur gear 1.</description><subject>BLASTING</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GEARING</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>GENERATION</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB29XF1DgnydHb08YnUdQnyDHP1UwjyD3EMilRwdA4JdQzxD-JhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGhsZGpqbGJiaOxkQpAgC8pCNu</recordid><startdate>20131219</startdate><enddate>20131219</enddate><creator>SAWADA KEN</creator><creator>HASHIGUCHI KENJI</creator><scope>EVB</scope></search><sort><creationdate>20131219</creationdate><title>ELECTRICALLY-DRIVEN ROTARY ACTUATOR</title><author>SAWADA KEN ; HASHIGUCHI KENJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2013255344A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2013</creationdate><topic>BLASTING</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GEARING</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>GENERATION</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>SAWADA KEN</creatorcontrib><creatorcontrib>HASHIGUCHI KENJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAWADA KEN</au><au>HASHIGUCHI KENJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ELECTRICALLY-DRIVEN ROTARY ACTUATOR</title><date>2013-12-19</date><risdate>2013</risdate><abstract>PROBLEM TO BE SOLVED: To securely remove a backlash even when gear precision is inferior.SOLUTION: A pair of driving-side spur gears 2, 3 are rotated by stepping motors 4, 5, and rotor shafts 4a, 5a of the pair of stepping motors 4, 5 are mutually set so that tooth faces thereof come into contact with tooth faces of a driven-side spur gear 1 mutually on the opposite side in a no-load state. The stepping motors 4, 5 are synchronously driven and the driven-side spur gear 1 is driven by the driving-side spur gears 2, 3 to mutually removes backlashes between the driving-side spur gears 2, 3 and the driven-side spur gear 1. In-phase coils 4A, 5a and 4B, 5B of the stepping motors 4, 5 are connected in series, and motor driving circuits 7A, 8A synchronously drive and rotate the rotor shafts 4a, 5a of the stepping motors 4, 5 while giving a predetermined phase difference. A rotary encoder 6 which detects rotations of only one of the stepping motors 4, 5 is attached to the stepping motor and then the driving-side spur gears 2, 3 have the mutual tooth faces brought into contact at the same place in a peripheral direction of the driven-side spur gear 1.</abstract><oa>free_for_read</oa></addata></record>
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subjects	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
title	ELECTRICALLY-DRIVEN ROTARY ACTUATOR
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