JP4482196B2

JP4482196B2 - Elevator hoisting machine

Info

Publication number: JP4482196B2
Application number: JP2000142440A
Authority: JP
Inventors: 吉川　　和弘; 加藤　　久仁夫
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2000-05-15
Filing date: 2000-05-15
Publication date: 2010-06-16
Anticipated expiration: 2020-05-15
Also published as: JP2001322781A

Description

【０００１】
【発明の属する技術分野】
この発明は、電動機の回転子と駆動綱車が一体的に形成されて枠体内に装備されると共に、枠体内に制動機が配置されたトラクション式のエレベーター用巻上機に関する。
【０００２】
【従来の技術】
図１１及び図１２は、例えば特表平８−５１１７５８号公報に記載された従来のエレベーター用巻上機を示す図で、図１１は設置状態における正面図、図１２は図１１のＡ−Ａ線断面図である。図において、１は立設されたエレベーターの案内レール、２は椀状の凹所を有する枠体で、凹所の開口縁部３を介して案内レール１に装着され、凹所の底面４から主軸５が立設状態に設けられている。６は枠体２の底面４内側に設けられた固定子巻線である。
【０００３】
７は主軸５に枢持された回転体で、枠体２の底面４内側との対向面に固定子巻線６と対向してディスク形電動機を形成する電機子８、底面４内側との対向面の外周に形成されてブレーキディスク９及び枠体２の開口縁部３側に配置されてブレーキディスク９よりも小径に構成された駆動綱車１０が設けられている。１１は枠体２の外周縁部に設けられてブレーキディスク９を挟圧して制動動作する電磁ブレーキ、１２は駆動綱車１０に巻掛けられた主索で、図示が省略してあるが一端にかご、他端につり合おもりが連結されている。
【０００４】
従来のエレベーター用巻上機は上記のように構成され、案内レール１の背面に枠体２の開口縁部が装着されて昇降路（図示しない）の上端寄りに設置される。そして、電動機が付勢されると駆動綱車１０が回転し摩擦力により主索１２が駆動されて、かご及びつり合おもりを互いに反対方向に昇降させるようになっている。
【０００５】
【発明が解決しようとする課題】
上記のような従来のエレベーター用巻上機では、電磁ブレーキ１１が枠体２の外形から突出して設けられているので、巻上機の外形寸法が増大する。また、電磁ブレーキ１１等の保守、点検のための保守作業用スペースを確保する必要があって、設置場所が狭隘であるために巻上機の設置が制約されたり、設置不能になったりするという問題点があった。
【０００６】
この発明は、かかる問題点を解消するためになされたものであり、狭いスペースに容易に設置できるエレベーター用巻上機を得ることを目的とする。
【０００７】
【課題を解決するための手段】
この発明に係るエレベーター用巻上機においては、椀状をなす凹所の開口縁部内周面に固定子巻線が設けられた枠体と、この枠体の凹所底面に立設されて凹所の開口部方向に延在する主軸と、枠体の凹所と相似形の椀状をなし枠体の凹所に嵌合状態に配置されて主軸に枢持され、枠体凹所の底面側における外周面に駆動綱車が形成されて凹所の開口縁部側の外周面に駆動綱車の直径よりも大径に電機子が設けられ開口縁部側の内周面に制動面が設けられた椀状回転体と、縁部が枠体の互いに対向した開口縁部に装着された支持板と、この支持板に設けられて椀状回転体の凹所内に配置され椀状回転体の制動面を制動する制動機と、支持板に装着された固定腕と、この固定腕及び制動機の電磁石の両側にそれぞれ配置され、端部が固定腕に締結されて中間部により電磁石を挟持する電磁石取付板と、中間部が固定腕に挿通されて端部の偏心部が電磁石取付板に嵌合された偏心軸とが設けられる。
【０００８】
また、この発明に係るエレベーター用巻上機においては、支持板に装着されて枠体内対応位置に配置された制動スイッチと、制動機の制動腕に装着されて枠体内対応位置に配置され、制動スイッチを押圧する押圧子とが設けられる。
【００１０】
また、この発明に係るエレベーター用巻上機においては、互いに反対方向に制動動作する二組によって構成されて、これらの二組が主軸を中心として対称形態に装備されてなる制動機が設けられる。
【００１１】
また、この発明に係るエレベーター用巻上機においては、連結ピンにより制動腕に連結されたアーマチュアと、このアーマチュアに装着されて一体的に構成された制動片を有する制動機が設けられる。
【００１２】
また、この発明に係るエレベーター用巻上機においては、互いに離れて対面して配置されて相互間に、制動片を装備したアーマチュアが配置された制動腕が設けられる。
【００１３】
また、この発明に係るエレベーター用巻上機においては、両ねじボルト形状をなし端部にナットがねじ込まれた締結具により、互いに離れて対面して配置された制動腕が連結されて、この連結具の一端に制動腕の一方が着脱自在に締結される。
【００１６】
また、この発明に係るエレベーター用巻上機においては、一側が支持板に締結されて他側によって電磁石を制動機の制動動作方向に押圧する押圧体が設けられる。
【００１７】
また、この発明に係るエレベーター用巻上機においては、椀状をなす凹所の開口縁部内周面に固定子巻線が設けられた枠体と、この枠体の凹所底面に立設されて開口部方向に延在する主軸と、枠体の凹所と相似形の椀状をなし枠体の凹所に嵌合状態に配置されて主軸に枢持され、枠体凹所の底面側における外周面に駆動綱車が形成されて開口縁部側の外周面に駆動綱車の直径よりも大径に電機子が設けられ開口縁部側の内周面に制動面が設けられた椀状回転体と、縁部が枠体の互いに対向した開口縁部に装着された支持板と、この支持板に設けられて椀状回転体の凹所内に配置され制動面を制動する制動機と、支持板に設けられて制動機の制動動作を人為操作によって解放する制動解放機構と、一側が互いに離れて対面して配置された制動機の制動腕の相互間に締結具によって締結されると共に制動機の制動ばねの制動腕に対する取付具に装着され、他側は制動解放機構の制動解放腕に設けられた係合ピンに連結された連結板が設けられる。
【００１８】
また、この発明に係るエレベーター用巻上機においては、連結板の係合部に空隙を形成して係合された小径部を有する係合ピンが設けられる。
【００１９】
また、この発明に係るエレベーター用巻上機においては、椀状をなす凹所の開口縁部内周面に固定子巻線が設けられた枠体と、この枠体の凹所底面に立設されて開口部方向に延在する主軸と、枠体の凹所と相似形の椀状をなし枠体の凹所に嵌合状態に配置されて主軸に枢持され、枠体凹所の底面側における外周面に駆動綱車が形成されて開口縁部側の外周面に駆動綱車の直径よりも大径に電機子が設けられ開口縁部側の内周面に制動面が設けられた椀状回転体と、縁部が枠体の互いに対向した開口縁部に装着された支持板と、この支持板に設けられて椀状回転体の凹所内に配置され制動面を制動する制動機と、支持板に設けられて制動機の制動動作を人為操作によって解放する制動解放機構と、制動解放機構を形成する制動解放腕の回動端に設けられて、上方に開口したＵ字溝が支持板に設けられた解放ケーブル取付板に摺動自在に嵌合すると共に、制動解放機構の解放ケーブル及び制動解放腕の回動端を反制動解放方向へ付勢する付勢具がそれぞれ連結された案内金具が設けられる。
【００２０】
【発明の実施の形態】
実施の形態１．
図１〜図１０は、この発明の実施の形態の一例を示す図で、図１は正面図、図２は図１のＢ−Ｂ線断面図、図３は図１における支持板及び制動機箇所の正面図、図４は図３のＣ−Ｃ線断面拡大図、図５は図３の制動機の電磁石の拡大図、図６は図５のＤ−Ｄ線断面図、図７は図３の制動機の制動腕箇所の拡大図、図８は図７のＥ−Ｅ線断面図、図９は図３における制動機に付設された制動解放装置を示す図、図１０は図９の要部右側面図である。
【００２１】
図において、２は椀状の凹所を有する枠体で、凹所の開口縁部３、凹所の底面４、下側に形成された脚部１３、脚部１３を貫通して凹所に連通した主索１２の吊設孔１４が設けられている。１５は支持板で、枠体２の開口縁部３を上下方向に横切って枠体２の互いに対向した開口縁部３の相互間に配置されている。１６は支持板１５の縁部に挿通されて枠体２の開口縁部３にねじ込まれたボルトからなる締結具である。
【００２２】
１７は主軸で、枠体２の底面４から立設されて先端が支持板１５に保持されている。１８は枠体２の開口縁部３の内周面に設けられた固定子巻線、１９は椀状回転体で、枠体２の凹所と相似形の椀状をなし枠体２の凹所に嵌合状態に配置されて主軸１７に枢持される。２０は椀状回転体１９における枠体２凹所の底面４側における外周面に形成された駆動綱車である。
【００２３】
２１は電機子で、椀状回転体１９における枠体２凹所の開口縁部３側の外周面に配置されて駆動綱車２０の直径よりも大径に形成されて、固定子巻線１８と対向して配置され固定子巻線１８とによって電動機を構成する。２２は椀状回転体１９における枠体２凹所の開口縁部３側の内周面に設けられた制動面である。
【００２４】
２３は椀状回転体１９の凹所内に配置された電磁制動機からなる制動機で、互いに反対方向に制動動作する二組によって構成されて、これらの二組が主軸１７を中心として対称形態に装備され、一端が支持ピン２４により支持板１５に枢持された制動腕２５、両端が支持板１５及び制動腕２５の回動端にそれぞれ連結された制動ばね２６、制動腕２５の支持ピン２４と制動ばね２６の中間に設けられて制動面２２と対面した制動片２７、制動片２７が装着されて一体的に構成され連結ピン２８により制動腕２５の長手中間に連結されて後述する電磁石２９に対向したアーマチュア３０、電磁石２９を両側から挟持して支持板１５側に保持する電磁石取付板３１によって構成されている。
【００２５】
３２は図１おいて長手が水平に配置され支持板１５に装着され、かつ支持板１５の上下にそれぞれ配置されて両面にそれぞれ電磁石取付板３１が装着された固定腕、３３は偏心軸で、長手中間の中間部３４は固定腕３２に嵌合され、長手両端の偏心部３５は電磁石取付板３１に嵌合されている。３６は支持板１５の図１における下部寄りに装着された制動スイッチである。
【００２６】
３７は制動腕２５の回動端に装着されて制動スイッチ３６を押圧する押圧子、３８は下端が支持板１５の図１における下部寄りに枢持ピン３８１によって枢着された制動解放腕、３９は連結板で、一側が互いに離れて対面して配置された制動腕２５の相互間の中心に締結具４０によって締結されると共に制動ばね２６の制動腕２５に対する取付具４１に装着され、他側は制動解放腕３８の枢持ピン３８１の図１における上側寄りに配置されている。
【００２７】
４２は係合ピンで、制動解放腕３８の枢持ピン３８１の図１における上側寄りに立設され、小径部４３が連結板３９の反制動腕２５側に空隙を形成して嵌合されている。４４は案内金具で、制動解放腕３８の一部をなし下部が制動解放腕３８の回動端に固定されて上部には上方に開口したＵ字溝が設けられている。
【００２８】
４５は支持板１５の図１における上側寄りに固定された解放ケーブル取付板で、両端がそれぞれ案内金具４４のＵ字溝に空隙を形成して嵌合されている。４６は引張りコイルばねからなる付勢具で、一端が解放ケーブル取付板の先端に、他端は取付金具４５の上端に連結されている。
【００２９】
４７は解放ケーブルで、外管と外管に挿通された芯線から可撓性ケーブルによって構成されて、外管が解放ケーブル取付板４５に装着され、芯線は制動解放腕３８の案内金具４４に連結されている。そして、芯線が人為操作によって牽引されて制動解放腕３８の上端を解放ケーブル取付板４５の長手中心方向に回動させる。４７０は制動解放腕３８及び解放ケーブル４７を主要構成部材とする制動解放機構である。４８は板ばねからなる押圧体で、一側が支持板１５に締結され他側によって電磁石２９をアーマチュア３０方向に付勢する。
【００３０】
上記のように構成されたエレベーター用巻上機において、枠体２の脚部１３を介して昇降路の固定部に据付けられ、また主索１２が吊設孔１４に挿通されて駆動綱車２０に巻掛けられて吊設される。そして、固定子巻線１８と電機子２１によって構成された電動機が付勢されると、駆動綱車２０が回転して摩擦力により主索１２が駆動され、図示が省略してあるがかご及びつり合おもりを互いに反対方向に昇降させる。
【００３１】
また、電磁石２９が消勢されて制動ばね２６の押圧力によって制動片２７が椀状回転体１９の制動面２２に押圧されて駆動綱車２０が制動される。そして、電磁石２９が付勢されると制動ばね２６の押圧力に抗してアーマチュア３０が吸引され、制動片２７が制動面２２から離れて駆動綱車２０の制動が解除される。この駆動綱車２０の制動解除が制動スイッチ３６を介して検出されて、電動機が付勢され前述のようにかごが運転される。
【００３２】
また、かごが停電等によって昇降路の乗場（図示しない）から外れた位置に停止、すなわち異常停止した場合には、解放ケーブル４７の芯線が人為操作によって牽引される。これにより、制動解放腕３８が制動ばね２６の押圧力に抗して回動し、制動片２７が制動面２２から離れて駆動綱車２０の制動が解除される。そして、駆動綱車２０が制動解除された状態でかごの重量によってかごを昇降させ、かごを昇降路の乗場に停止してかご内乗客の救出が行われる。
【００３３】
このように構成されたエレベーター用巻上機は、椀状回転体１９の凹所内に制動機２３が配置され、また枠体２内対応位置に設けられた支持板１５に装着された制動スイッチ３６及び枠体２内対応位置に設けられて制動スイッチ３６を押圧する押圧子３７が設けられる。これにより、枠体２の外周から突出する部材がなく巻上機の外形が小さくなる。したがって、狭いスペースに巻上機を容易に設置することができる。また、支持板１５を取り外して制動機２３を点検することができ、保守作業用スペースが得にくいために巻上機の設置が制約される不具合を解消することができる。
【００３４】
また、制動機２３と、かごの異常停止時に制動機２３を人為操作によって解放する制動解放機構４７０とが、枠体２に締結具１６によって着脱自在に締結された支持板１５に装着される。このため、締結具１６による締結を解除して支持板１５を枠体２から取り外すことによって制動機２３、制動解放機構４７０を一緒に電動機側から取り外すことができる。したがって、固定子巻線１８等の電動機の保守、点検作業が容易にでき、保守作業能率を向上することができる。
【００３５】
また、製造工程を電動機側と、制動機２３及び救出機構側とに容易に分割することができるので、巻上機の製造時における取り扱い部材を軽量化できる。さらに、分割した部位をユニット化することができるので、生産性を向上することができる。
また、制動ばね２６、制動片２７、電磁石２９等からなる制動機２３の二組が、主軸１７を中心に対称形態に装備される。
【００３６】
このため、制動腕２５の支持ピン２４の荷重、制動ばね２６による荷重及び電磁石２９の荷重からなり、二組の制動機２３によって支持板１５に作用する負荷を互いに相殺することができる。したがって、制動機２３を小形化でき、またこれに伴って巻上機自体も小形化できて、狭いスペースに設置できるので巻上機の設置に対する制約を少なくすることができる。
【００３７】
また、アーマチュア３０に制動片２７を装着して一体化したので、制動腕２５は制動ばね２６の付勢力を伝達し、かつ制動力を支持するだけで済む。このため、余計な撓み量を考慮する必要がなく制動腕２５の横断面積を小さくでき、これに付随して制動機２３を小形化することができる。また、これに伴って巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくすることができる。
【００３８】
また、離れて対面して配置された制動腕２５の相互間に、一体化された制動片２７とアーマチュア３０が配置される。このため、制動ばね２６による荷重、電磁石２９の荷重等によって制動腕２５にねじれが発生することがなく、制動腕２５を軽薄化することができる。したがって、制動機２３を小形化でき、またこれに伴って巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくすることができる。
【００３９】
また、制動腕２５を固定腕３２に枢着する支持ピン２４、アーマチュア３０を制動腕２５に枢着する連結ピン２９、連結板３９を制動腕２５の相互間に連結する締結具４０及び制動ばね２６を制動腕２５に連結する取付具４１の締結具を、長手の両端にねじ部が設けられて両ねじボルト形状をなしナットがねじ込まれた構造をなすものとする。
【００４０】
そして、支持ピン２４等の長手の一端を離れて対面して配置された制動腕２５の一方に締結する。そして、このような構成により制動腕２５の保守作業スペース側の他方に対して、支持ピン２４等の長手の他端を着脱するようにする。これによって、支持ピン２４等の長手の他端から対応した制動腕２５を取り外す。これによって、制動片２７とアーマチュア３０を容易に点検したり交換したりすることができ保守作業能率を向上することができる。
【００４１】
また、電磁石２９の両側にそれぞれ電磁石取付板３１を配置して電磁石２９を挟持する。そして、これらの電磁石取付板３１が支持板１５に装着された固定腕３２の両面にそれぞれ締結される。このような構造によって電磁石２９を装着することにより、電磁石２９が積層構造体からなるものであっても容易に電磁石２９を所定位置に装着することができて、生産性を向上することができる。
【００４２】
また、電磁石２９を挟持した両側の電磁石取付板３１が、偏心軸３３によって固定腕３２に係合される。これにより、電磁石取付板３１の固定腕３２に対する締結を緩めて、偏心軸３３を回動することによって電磁石２９を固定腕３２に対して進退させることができる。このため、電磁石２９とアーマチュア３０との隙間を容易に調整することができ、保守作業能率を向上することができる。
【００４３】
また、押圧体４８によって電磁石２９がアーマチュア３０方向に押圧されている。このため、電磁石２９と電磁石取付板３１の図４に示す嵌合部に隙間が生じることがなく、電磁石取付板３１が固定腕３２の所定位置に配置されることによって、アーマチュア３０との間に所定の隙間を保って電磁石２９の位置を設定することができる。また、偏心軸３３を回動して電磁石２９を進退させる場合にバックラッシュが発生しないので、容易に位置決めできて保守作業能率を向上することができる。
【００４４】
また、制動解放腕３８が係合ピン４２及び互いに離れて対面して配置された制動腕２５の相互間の中心に配置された連結板３９を介して制動腕２５に連結されている。このため、制動解放腕３８の動作による荷重が、両方の制動腕２５にねじれを発生することなく均等に作用するので、制動腕２５を軽薄化でき巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくすることができる。
【００４５】
また、制動解放腕３８に設けられた係合ピン４２の小径部４３が、連結板３９の係合部に空隙を形成して係合されるので、制動腕２５の通常時動作による変位が制動解放腕３８に伝達されることがない。このため、係合ピン４２と連結板３９の係合部等における損耗が減少して長寿命化できて保守作業能率を向上することができる。なお、制動解放腕３８の動作時には、その動作が連結板３９を介して確実に制動腕２５に伝動される。
【００４６】
また、制動解放腕３８に案内金具４４が設けられて、Ｕ字溝に解放ケーブル取付板４５が嵌合して制動解放腕３８の動作が案内される。また、案内金具４４に解放ケーブル４７の芯線が連結され、また案内金具４４に付勢具４６の端部が連結されている。このような構成によって部品数を少なくすることができ生産性を向上することができる。
【００４７】
【発明の効果】
この発明は以上説明したように、椀状をなす凹所の開口縁部内周面に固定子巻線が設けられた枠体と、この枠体の凹所底面に立設されて凹所の開口部方向に延在する主軸と、枠体の凹所と相似形の椀状をなし枠体の凹所に嵌合状態に配置されて主軸に枢持され、枠体凹所の底面側における外周面に駆動綱車が形成されて凹所の開口縁部側の外周面に駆動綱車の直径よりも大径に電機子が設けられ開口縁部側の内周面に制動面が設けられた椀状回転体と、縁部が枠体の互いに対向した開口縁部に装着された支持板と、この支持板に設けられて椀状回転体の凹所内に配置され、椀状回転体の制動面を制動する制動機と、支持板に装着された固定腕と、固定腕及び制動機の電磁石の両側にそれぞれ配置され、端部が固定腕に締結されて中間部により電磁石を挟持する電磁石取付板と、中間部が固定腕に挿通されて端部の偏心部が電磁石取付板に嵌合された偏心軸とを設けたものである。
【００４８】
これによって、椀状回転体の凹所内に制動機が配置され、枠体の外周から突出する部材がなく巻上機の外形を小さくでき、狭いスペースに容易に設置できる巻上機を得ることができる。また、支持板を取り外して制動機を点検することができ、保守作業用スペースが得にくいために巻上機の設置が制約される不具合を解消する効果がある。また、枠体に締結された支持板に制動機が装着されて、支持板を枠体から取り外すことによって制動機を電動機側から取り外すことができる。したがって、固定子巻線等の電動機の保守、点検作業が容易にでき、保守作業能率を向上する効果がある。また、電磁石を装着することにより、電磁石が積層構造体からなるものであっても容易に電磁石を所定位置に装着することができて、生産性を向上する効果がある。さらに、電磁石取付板の固定腕に対する締結を緩めて、偏心軸を回動することによって電磁石を固定腕に対して進退させることができる。このため、電磁石とアーマチュアとの隙間を容易に調整することができ、保守作業能率を向上する効果がある。
【００４９】
また、この発明は以上説明したように、支持板に装着されて枠体内対応位置に配置された制動スイッチと、制動機の制動腕に装着されて枠体内対応位置に配置され、制動スイッチを押圧する押圧子とを設けたものである。
【００５０】
これによって、椀状回転体の凹所内に制動機が配置され、また枠体内対応位置に制動スイッチ及び制動スイッチを押圧する押圧子が配置される。このため、枠体の外周から突出する部材がなく巻上機の外形を小さくでき、狭いスペースに容易に設置できる巻上機を得ることができる。また、支持板を取り外して制動機を点検することができ、保守作業用スペースが得にくいために巻上機の設置が制約される不具合を解消する効果がある。また、枠体に締結された支持板に制動機が装着されて、支持板を枠体から取り外すことによって制動機を電動機側から取り外すことができる。したがって、固定子巻線等の電動機の保守、点検作業が容易にでき、保守作業能率を向上する効果がある。
【００５３】
また、この発明は以上説明したように、互いに反対方向に制動動作する二組によって構成し、これらの二組が主軸を中心として対称形態に装備されてなる制動機を設けたものである。
【００５４】
これによって、制動機の作動荷重によって発生して二組の制動機によって支持板に作用する負荷が互いに相殺される。したがって、支持板、制動機を小形化でき、またこれに伴って巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくする効果がある。
【００５５】
また、この発明は以上説明したように、連結ピンにより制動腕に連結されたアーマチュアと、このアーマチュアに装着されて一体的に構成された制動片を有する制動機を設けたものである。
【００５６】
これによって、制動腕は制動ばねの付勢力を伝達し、かつ制動力を支持するだけで済む。このため、余計な撓み量を考慮する必要がなく制動腕の横断面積を小さくでき、これに付随して制動機を小形化でき、またこれに伴って巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくする効果がある。
【００５７】
また、この発明は以上説明したように、互いに離れて対面して配置されて相互間に、制動片と一体的に構成されたアーマチュアが装備された制動腕を設けたものである。
【００５８】
これによって、制動ばねによる荷重、電磁石の荷重等によって制動腕にねじれが発生することがなく、制動腕を軽薄化することができる。したがって、制動機を小形化でき、またこれに伴って巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくする効果がある。
【００５９】
また、この発明は以上説明したように、両ねじボルト形状をなし端部にナットがねじ込まれた締結具によって、互いに離れて対面して配置された制動腕が連結され、この連結具の一端に制動腕の一方を着脱自在に締結したものである。
【００６０】
これによって、制動腕の一方を連結具から取り外して、制動片、アーマチュアを容易に点検したり交換したりすることがでいる。したがって、保守作業能率を向上する効果がある。
【００６５】
また、この発明は以上説明したように、一側が支持板に締結されて他側によって電磁石を制動機の制動動作方向に押圧する押圧体を設けたものである。
【００６６】
これによって、押圧体により電磁石が押圧されるので、電磁石と電磁石取付板の嵌合部に隙間が生じることがなく、電磁石取付板が固定腕の所定位置に配置されることによって、対向したアーマチュアとの間に所定の隙間を保って電磁石の位置を設定することができる。また、偏心軸を回動して電磁石を進退させる場合にバックラッシュが発生しないので、容易に位置決めできて保守作業能率を向上する効果がある。
【００６７】
また、この発明は以上説明したように、椀状をなす凹所の開口縁部内周面に固定子巻線が設けられた枠体と、この枠体の凹所底面に立設されて開口部方向に延在する主軸と、枠体の凹所と相似形の椀状をなし枠体の凹所に嵌合状態に配置されて主軸に枢持され、枠体凹所の底面側における外周面に駆動綱車が形成されて開口縁部側の外周面に駆動綱車の直径よりも大径に電機子が設けられ開口縁部側の内周面に制動面が設けられた椀状回転体と、縁部が枠体の互いに対向した開口縁部に装着された支持板と、この支持板に設けられて椀状回転体の凹所内に配置され制動面を制動する制動機と、支持板に設けられて制動機の制動動作を人為操作によって解放する制動解放機構と、一側が互いに離れて対面して配置された制動機の制動腕の相互間に締結具によって締結されると共に制動機の制動ばねの制動腕に対する取付具に装着され、他側は制動解放機構の制動解放腕に設けられた係合ピンに連結された連結板を設けたものである。
【００６８】
これによって、支持板を枠体から取り外すことによって制動機、制動解放機構を一緒に固定子巻線、電機子からなる電動機側から取り外すことができる。したがって、固定子巻線等の電動機の保守、点検作業が容易にでき、保守作業能率を向上する効果がある。また、制動解放腕の動作による荷重が、両方の制動腕に捩じれを発生することなく均等に作用する。このため、制動腕を軽薄化でき巻上機自体も小形化できて、狭いスペースに設置でき巻上機の設置に対する制約を少なくする効果がある。
【００６９】
また、この発明は以上説明したように、連結板の係合部に空隙を形成して係合された小径部を有する係合ピンを設けたものである。
【００７０】
これによって、制動腕の通常時における制動動作による変位が制動解放腕に伝達されることがない。このため、係合ピンと連結板の係合部等における損耗が減少して長寿命化できて保守作業能率を向上する効果がある。
【００７１】
また、この発明は以上説明したように、椀状をなす凹所の開口縁部内周面に固定子巻線が設けられた枠体と、この枠体の凹所底面に立設されて開口部方向に延在する主軸と、枠体の凹所と相似形の椀状をなし枠体の凹所に嵌合状態に配置されて主軸に枢持され、枠体凹所の底面側における外周面に駆動綱車が形成されて開口縁部側の外周面に駆動綱車の直径よりも大径に電機子が設けられ開口縁部側の内周面に制動面が設けられた椀状回転体と、縁部が枠体の互いに対向した開口縁部に装着された支持板と、この支持板に設けられて椀状回転体の凹所内に配置され制動面を制動する制動機と、支持板に設けられて制動機の制動動作を人為操作によって解放する制動解放機構と、制動解放機構を形成する制動解放腕の回動端に設けられて、上方に開口したＵ字溝が支持板に設けられた解放ケーブル取付板に摺動自在に嵌合すると共に、制動解放機構の解放ケーブル及び制動解放腕の回動端を反制動解放方向へ付勢する付勢具がそれぞれ連結された案内金具を設けたものである。
【００７２】
これによって、支持板を枠体から取り外すことによって制動機、制動解放機構を一緒に固定子巻線、電機子からなる電動機側から取り外すことができる。したがって、固定子巻線等の電動機の保守、点検作業が容易にでき、保守作業能率を向上する効果がある。また、制動解放腕の回動端に設けられた案内金具により制動解放腕の回動動作が解放ケーブル取付板によって案内され、また案内金具に解放ケーブル及び付勢具が連結される。したがって、部品数が減少して生産性を向上する効果がある。
【図面の簡単な説明】
【図１】この発明の実施の形態１を示す正面図。
【図２】図１のＢ−Ｂ線断面図。
【図３】図１における支持板及び制動機箇所の正面図。
【図４】図３のＣ−Ｃ線断面拡大図。
【図５】図３の制動機の電磁石の拡大図。
【図６】図５のＤ−Ｄ線断面図。
【図７】図３の制動機の制動腕箇所の拡大図。
【図８】図７のＥ−Ｅ線断面図。
【図９】図３における制動機に付設された制動解放装置を示す図。
【図１０】図９の要部右側面図。
【図１１】従来のエレベーター用巻上機を示す図で、設置状態における正面図。
【図１２】図１１のＡ−Ａ線断面図。
【符号の説明】
２枠体、３開口縁部、４凹所底面、１５支持板、１７主軸、１８固定子巻線、１９椀状回転体、２０駆動綱車、２１電機子、２２制動面、２３制動機、２５制動腕、２６制動ばね、２７制動片、２８連結ピン、２９電磁石、３０アーマチュア、３１電磁石取付板、３２固定腕、３３偏心軸、３４中間部、３５偏心部、３６制動スイッチ、３７押圧子、３８制動解放腕、３９連結板、４０締結具、４１取付具、４２係合ピン、４３小径部、４４案内金具、４５解放ケーブル取付板、４６付勢具、４７解放ケーブル、４７０制動解放機構、４８押圧体。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a traction type elevator hoisting machine in which a rotor of a motor and a driving sheave are integrally formed and mounted in a frame, and a brake is disposed in the frame.
[0002]
[Prior art]
11 and 12 are views showing a conventional elevator hoisting machine described in, for example, Japanese Patent Publication No. 8-511758, FIG. 11 is a front view in an installed state, and FIG. 12 is an AA of FIG. It is line sectional drawing. In the figure, 1 is a guide rail of a standing elevator, 2 is a frame having a bowl-shaped recess, and is attached to the guide rail 1 via an opening edge 3 of the recess, from the bottom surface 4 of the recess. The main shaft 5 is provided upright. Reference numeral 6 denotes a stator winding provided inside the bottom surface 4 of the frame 2.
[0003]
Reference numeral 7 denotes a rotating body pivotally supported by the main shaft 5, and an armature 8 that forms a disk-shaped motor facing the stator winding 6 on the surface facing the inner side of the bottom surface 4 of the frame 2, and facing the inner side of the bottom surface 4 A drive sheave 10 formed on the outer periphery of the surface and disposed on the opening edge 3 side of the brake disc 9 and the frame 2 and having a smaller diameter than the brake disc 9 is provided. 11 is an electromagnetic brake which is provided on the outer peripheral edge of the frame body 2 and presses the brake disc 9 to perform a braking operation, and 12 is a main rope wound around the driving sheave 10. A counterweight is connected to the car and the other end.
[0004]
The conventional elevator hoisting machine is configured as described above, and the opening edge of the frame 2 is mounted on the back of the guide rail 1 and is installed near the upper end of a hoistway (not shown). When the electric motor is energized, the driving sheave 10 rotates and the main rope 12 is driven by the frictional force so that the car and the counterweight are raised and lowered in opposite directions.
[0005]
[Problems to be solved by the invention]
In the conventional elevator hoist as described above, since the electromagnetic brake 11 is provided so as to protrude from the outer shape of the frame body 2, the outer dimensions of the hoisting machine increase. In addition, it is necessary to secure a maintenance work space for maintenance and inspection of the electromagnetic brake 11, etc., and the installation location is limited, so that the installation of the hoisting machine is restricted or impossible to install. There was a problem.
[0006]
The present invention has been made to solve such problems, and an object thereof is to obtain an elevator hoisting machine that can be easily installed in a narrow space.
[0007]
[Means for Solving the Problems]
  In the elevator hoisting machine according to the present invention, a frame body in which a stator winding is provided on the inner peripheral surface of the opening edge portion of the bowl-shaped recess, and a recess that is erected on the bottom surface of the recess of the frame body. A main shaft extending in the direction of the opening of the frame, and a bowl-like shape similar to the recess of the frame body. The main shaft is fitted in the recess of the frame body and is pivotally supported by the main shaft. A driving sheave is formed on the outer peripheral surface on the side, an armature is provided on the outer peripheral surface on the opening edge side of the recess and larger in diameter than the diameter of the driving sheave, and a braking surface is provided on the inner peripheral surface on the opening edge side. A saddle-like rotator provided on a saddle-like rotator provided on the support plate, and a support plate mounted on the opening edges of the frame opposite to each other. A brake for braking the braking surface ofA fixed arm mounted on the support plate, an electromagnet mounting plate disposed on both sides of the fixed arm and the electromagnet of the brake, and having an end portion fastened to the fixed arm and sandwiching the electromagnet by the intermediate portion, and an intermediate portion An eccentric shaft that is inserted through the fixed arm and has an eccentric portion fitted to the electromagnet mounting plate;Is provided.
[0008]
In the elevator hoisting machine according to the present invention, the brake switch mounted on the support plate and disposed at the position corresponding to the frame body, and the brake switch mounted on the brake arm of the brake device and disposed at the position corresponding to the frame body, A pressing member that presses the switch is provided.
[0010]
In the elevator hoisting machine according to the present invention, there is provided a brake that is constituted by two sets that perform braking operations in opposite directions, and that these two sets are mounted in a symmetrical form around the main axis.
[0011]
In the elevator hoisting machine according to the present invention, there is provided a brake having an armature connected to a brake arm by a connecting pin and a brake piece that is integrally mounted on the armature.
[0012]
Further, in the elevator hoist according to the present invention, a braking arm is provided that is disposed facing each other apart from each other and in which an armature equipped with a braking piece is disposed.
[0013]
Further, in the elevator hoisting machine according to the present invention, the brake arms arranged facing each other away from each other are connected by a fastener having a double screw bolt shape and a nut screwed into the end, and this connection One end of the braking arm is detachably fastened to one end of the tool.
[0016]
In the elevator hoist according to the present invention, a pressing body is provided that is fastened on one side to the support plate and presses the electromagnet in the braking operation direction of the brake by the other side.
[0017]
  In the elevator hoist according to the present invention,A frame having a stator winding on the inner peripheral surface of the opening edge of the recess having a bowl-like shape, a main shaft standing on the bottom of the recess of the frame and extending in the direction of the opening, It has a bowl shape similar to that of the recess, and is fitted in the recess of the frame body and pivotally supported by the main shaft. A driving sheave is formed on the outer peripheral surface of the bottom surface side of the frame recess, and the opening edge An armature is provided on the outer peripheral surface on the side and a brake surface is provided on the inner peripheral surface on the opening edge side, and an edge is opposed to the frame body. A support plate mounted on the opening edge, a brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface, and a brake provided on the support plate for artificially performing the braking operation of the brake A brake release mechanism that is released by operation;One side is fastened by a fastener between the braking arms of the brakes arranged facing each other away from each other and is attached to a fixture for the braking arm of the braking spring of the brake, and the other side is braked by the braking release mechanism. A connecting plate is provided which is connected to an engaging pin provided on the release arm.
[0018]
In the elevator hoisting machine according to the present invention, an engagement pin having a small diameter portion engaged by forming a gap in the engagement portion of the connecting plate is provided.
[0019]
  In the elevator hoist according to the present invention,A frame having a stator winding on the inner peripheral surface of the opening edge of the recess having a bowl-like shape, a main shaft standing on the bottom of the recess of the frame and extending in the direction of the opening, It has a bowl shape similar to that of the recess, and is fitted in the recess of the frame body and pivotally supported by the main shaft. A driving sheave is formed on the outer peripheral surface of the bottom surface side of the frame recess, and the opening edge An armature is provided on the outer peripheral surface on the side and a brake surface is provided on the inner peripheral surface on the opening edge side, and an edge is opposed to the frame body. A support plate mounted on the opening edge, a brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface, and a brake provided on the support plate for artificially performing the braking operation of the brake A brake release mechanism that is released by operation;A U-shaped groove provided at the rotating end of the brake release arm forming the brake release mechanism is slidably fitted to the release cable mounting plate provided on the support plate, and the brake release mechanism Guide fittings are provided to which urging tools for urging the release ends of the release cable and the brake release arm in the anti-brake release direction are connected.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 to 10 are views showing an example of an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a cross-sectional view taken along the line BB of FIG. 1, and FIG. 4 is an enlarged view taken along the line CC of FIG. 3, FIG. 5 is an enlarged view of the electromagnet of the brake shown in FIG. 3, FIG. 6 is a sectional view taken along the line DD in FIG. FIG. 8 is a sectional view taken along the line EE of FIG. 7, FIG. 9 is a diagram showing a brake release device attached to the brake in FIG. 3, and FIG. 10 is a diagram of FIG. It is a principal part right view.
[0021]
In the figure, reference numeral 2 denotes a frame having a bowl-shaped recess, which has an opening edge 3 of the recess, a bottom surface 4 of the recess, a leg 13 formed on the lower side, and a leg 13 that penetrates the recess. A suspension hole 14 for the main rope 12 that communicates is provided. Reference numeral 15 denotes a support plate which is disposed between the opening edge portions 3 of the frame body 2 facing each other across the opening edge portion 3 of the frame body 2 in the vertical direction. Reference numeral 16 denotes a fastener made of a bolt inserted into the edge of the support plate 15 and screwed into the opening edge 3 of the frame 2.
[0022]
Reference numeral 17 denotes a main shaft which is erected from the bottom surface 4 of the frame body 2 and has a tip held by the support plate 15. Reference numeral 18 denotes a stator winding provided on the inner peripheral surface of the opening edge 3 of the frame body 2, and 19 denotes a bowl-shaped rotating body which has a bowl shape similar to the recess of the frame body 2 and is recessed in the frame body 2. The main shaft 17 is pivotally supported by being placed in a fitted state. Reference numeral 20 denotes a drive sheave formed on the outer peripheral surface on the bottom surface 4 side of the recess of the frame body 2 in the bowl-shaped rotating body 19.
[0023]
Reference numeral 21 denotes an armature, which is disposed on the outer peripheral surface on the opening edge 3 side of the frame 2 recess in the bowl-shaped rotating body 19 and is formed to have a diameter larger than the diameter of the drive sheave 20. And the stator winding 18 are arranged opposite to each other to constitute an electric motor. Reference numeral 22 denotes a braking surface provided on the inner peripheral surface of the saddle-shaped rotating body 19 on the opening edge 3 side of the frame 2 recess.
[0024]
Reference numeral 23 denotes a brake composed of an electromagnetic brake disposed in the recess of the bowl-shaped rotating body 19, which is composed of two sets that perform braking operations in opposite directions, and these two sets are symmetrical with respect to the main shaft 17. The brake arm 25 is equipped with one end pivotally supported by the support plate 15 by the support pin 24, both ends are connected to the support plate 15 and the pivot end of the brake arm 25, respectively, and the support pin 24 of the brake arm 25. And a braking piece 27 provided in the middle of the braking spring 26 and facing the braking surface 22. The braking piece 27 is mounted integrally and connected to the longitudinal middle of the braking arm 25 by a connecting pin 28, which will be described later. And an electromagnet mounting plate 31 that holds the electromagnet 29 from both sides and holds it on the support plate 15 side.
[0025]
32 is a fixed arm in which the longitudinal length is horizontally arranged in FIG. 1 and attached to the support plate 15 and arranged on the upper and lower sides of the support plate 15 and the electromagnet mounting plates 31 are attached to both surfaces, respectively, 33 is an eccentric shaft, The intermediate portion 34 in the middle of the longitudinal direction is fitted to the fixed arm 32, and the eccentric portions 35 at both longitudinal ends are fitted to the electromagnet mounting plate 31. Reference numeral 36 denotes a brake switch mounted near the lower portion of the support plate 15 in FIG.
[0026]
Reference numeral 37 denotes a pressing member which is attached to the rotating end of the braking arm 25 and presses the braking switch 36. Reference numeral 38 denotes a braking release arm whose lower end is pivotally attached to the lower portion of the support plate 15 in FIG. Is a connecting plate, which is fastened by a fastener 40 to the center between the brake arms 25 arranged on one side facing each other, and is attached to a fixture 41 of the brake spring 26 with respect to the brake arm 25. Is arranged on the upper side of the pivot pin 381 of the brake release arm 38 in FIG.
[0027]
Reference numeral 42 denotes an engaging pin, which is erected on the upper side in FIG. 1 of the pivot pin 381 of the braking release arm 38, and the small diameter portion 43 is fitted with a gap formed on the side of the connecting plate 39 opposite to the braking arm 25. Yes. Reference numeral 44 denotes a guide fitting, which forms a part of the brake release arm 38, the lower part of which is fixed to the rotating end of the brake release arm 38, and the upper part is provided with a U-shaped groove that opens upward.
[0028]
Reference numeral 45 denotes a release cable mounting plate fixed to the upper side of the support plate 15 in FIG. 1, and both ends thereof are fitted with gaps formed in U-shaped grooves of the guide fitting 44. Reference numeral 46 denotes an urging tool made of a tension coil spring, one end of which is connected to the tip of the release cable mounting plate and the other end is connected to the upper end of the mounting bracket 45.
[0029]
47 is a release cable, which is composed of an outer tube and a core cable inserted through the outer tube by a flexible cable. The outer tube is attached to the release cable mounting plate 45, and the core wire is connected to the guide fitting 44 of the brake release arm 38. Has been. Then, the core wire is pulled by human operation, and the upper end of the brake release arm 38 is rotated in the longitudinal center direction of the release cable attachment plate 45. Reference numeral 470 denotes a brake release mechanism including the brake release arm 38 and the release cable 47 as main components. Reference numeral 48 denotes a pressing body made of a leaf spring. One side is fastened to the support plate 15 and the other side urges the electromagnet 29 toward the armature 30.
[0030]
In the elevator hoisting machine configured as described above, the elevator is installed on the fixed part of the hoistway through the legs 13 of the frame body 2, and the main rope 12 is inserted into the suspension hole 14 to drive the sheave 20. It is wound around and suspended. When the motor constituted by the stator winding 18 and the armature 21 is energized, the driving sheave 20 rotates and the main rope 12 is driven by the frictional force. Lift the counterweights in opposite directions.
[0031]
Further, the electromagnet 29 is de-energized, and the braking piece 27 is pressed against the braking surface 22 of the saddle-shaped rotating body 19 by the pressing force of the braking spring 26, so that the drive sheave 20 is braked. When the electromagnet 29 is energized, the armature 30 is attracted against the pressing force of the braking spring 26, the braking piece 27 is separated from the braking surface 22, and the braking of the drive sheave 20 is released. The brake release of the drive sheave 20 is detected via the brake switch 36, the electric motor is energized, and the car is operated as described above.
[0032]
Further, when the car stops at a position off the hoistway landing (not shown) due to a power failure or the like, that is, abnormally stops, the core wire of the release cable 47 is pulled by human operation. As a result, the braking release arm 38 rotates against the pressing force of the braking spring 26, the braking piece 27 moves away from the braking surface 22, and the braking of the drive sheave 20 is released. Then, the car is lifted and lowered by the weight of the car in a state where the driving sheave 20 is released from the brake, and the car is stopped at the landing of the hoistway to rescue passengers in the car.
[0033]
In the elevator hoisting machine configured as described above, the brake 23 is disposed in the recess of the bowl-shaped rotating body 19, and the brake switch 36 is mounted on the support plate 15 provided at the corresponding position in the frame 2. In addition, a pressing member 37 is provided at a corresponding position in the frame body 2 to press the brake switch 36. Thereby, there is no member which protrudes from the outer periphery of the frame 2, and the external shape of a hoisting machine becomes small. Therefore, the hoisting machine can be easily installed in a narrow space. Moreover, the support plate 15 can be removed and the brake 23 can be inspected, and the problem that the installation of the hoisting machine is restricted because the space for maintenance work is difficult to obtain can be solved.
[0034]
The brake 23 and a brake release mechanism 470 that releases the brake 23 by an artificial operation when the car stops abnormally are mounted on the support plate 15 that is detachably fastened to the frame 2 by the fasteners 16. For this reason, the brake 23 and the brake release mechanism 470 can be removed together from the electric motor side by releasing the fastening by the fastener 16 and removing the support plate 15 from the frame 2. Therefore, maintenance and inspection work of the motor such as the stator winding 18 can be facilitated, and maintenance work efficiency can be improved.
[0035]
Further, since the manufacturing process can be easily divided into the motor side, the brake 23 and the rescue mechanism side, the handling member at the time of manufacturing the hoisting machine can be reduced in weight. Furthermore, since the divided | segmented site | part can be unitized, productivity can be improved.
In addition, two sets of the brake 23 including the brake spring 26, the brake piece 27, the electromagnet 29, and the like are provided in a symmetrical form with the main shaft 17 as the center.
[0036]
For this reason, it consists of the load of the support pin 24 of the brake arm 25, the load by the brake spring 26, and the load of the electromagnet 29, and the load acting on the support plate 15 by the two sets of brakes 23 can be offset each other. Therefore, the brake 23 can be miniaturized, and the hoisting machine itself can be miniaturized and can be installed in a narrow space, so that restrictions on the installation of the hoisting machine can be reduced.
[0037]
Since the armature 30 is integrated with the brake piece 27, the brake arm 25 only needs to transmit the urging force of the brake spring 26 and support the braking force. For this reason, it is not necessary to consider the excessive amount of bending, the cross-sectional area of the braking arm 25 can be reduced, and the brake 23 can be reduced in size accordingly. In addition, the hoisting machine itself can be miniaturized and can be installed in a narrow space, and restrictions on the installation of the hoisting machine can be reduced.
[0038]
Also, an integrated braking piece 27 and armature 30 are arranged between the braking arms 25 arranged facing each other. For this reason, the brake arm 25 is not twisted by the load of the brake spring 26, the load of the electromagnet 29, and the like, and the brake arm 25 can be thinned. Therefore, the brake 23 can be reduced in size, and accordingly, the hoisting machine itself can be reduced in size, and can be installed in a narrow space, and restrictions on installation of the hoisting machine can be reduced.
[0039]
Also, a support pin 24 that pivotally attaches the braking arm 25 to the fixed arm 32, a connecting pin 29 that pivotally attaches the armature 30 to the braking arm 25, a fastener 40 that connects the connecting plate 39 between the braking arms 25, and a braking spring. It is assumed that the fastener of the fixture 41 that connects 26 to the brake arm 25 is provided with a threaded portion at both ends of the longitudinal direction to form a double screw bolt shape and a nut is screwed.
[0040]
And it fastens to one side of the braking arm 25 arrange | positioned away from the longitudinal ends of the support pins 24 etc. facing each other. With such a configuration, the other longitudinal end of the support pin 24 and the like is attached to and detached from the other side of the braking arm 25 on the maintenance work space side. As a result, the corresponding braking arm 25 is removed from the other longitudinal end of the support pin 24 or the like. As a result, the braking piece 27 and the armature 30 can be easily inspected and replaced, and the maintenance work efficiency can be improved.
[0041]
In addition, the electromagnet 29 is sandwiched by arranging the electromagnet mounting plates 31 on both sides of the electromagnet 29. These electromagnet mounting plates 31 are fastened to both surfaces of the fixed arm 32 attached to the support plate 15. By mounting the electromagnet 29 with such a structure, the electromagnet 29 can be easily mounted at a predetermined position even if the electromagnet 29 is formed of a laminated structure, and productivity can be improved.
[0042]
The electromagnet mounting plates 31 on both sides sandwiching the electromagnet 29 are engaged with the fixed arm 32 by the eccentric shaft 33. Accordingly, the electromagnet 29 can be moved forward and backward with respect to the fixed arm 32 by loosening the fastening of the electromagnet mounting plate 31 to the fixed arm 32 and rotating the eccentric shaft 33. For this reason, the clearance gap between the electromagnet 29 and the armature 30 can be adjusted easily, and maintenance work efficiency can be improved.
[0043]
Further, the electromagnet 29 is pressed toward the armature 30 by the pressing body 48. Therefore, there is no gap in the fitting portion shown in FIG. 4 between the electromagnet 29 and the electromagnet mounting plate 31, and the electromagnet mounting plate 31 is disposed at a predetermined position of the fixed arm 32, so The position of the electromagnet 29 can be set while maintaining a predetermined gap. Further, since the backlash does not occur when the eccentric shaft 33 is rotated to move the electromagnet 29 back and forth, the positioning can be easily performed and the maintenance work efficiency can be improved.
[0044]
Further, the brake release arm 38 is connected to the brake arm 25 via the engaging pin 42 and a connecting plate 39 arranged at the center between the brake arms 25 arranged facing each other. For this reason, the load due to the operation of the brake release arm 38 acts evenly on both brake arms 25 without causing torsion, so that the brake arm 25 can be made lighter and the hoisting machine itself can be reduced in size, and a narrow space can be obtained. It is possible to reduce the restrictions on the installation of the hoisting machine.
[0045]
Further, since the small-diameter portion 43 of the engagement pin 42 provided on the brake release arm 38 is engaged with the engagement portion of the connecting plate 39 by forming a gap, the displacement due to the normal operation of the brake arm 25 is braked. There is no transmission to the release arm 38. For this reason, wear at the engaging portion of the engaging pin 42 and the connecting plate 39 is reduced, the life can be extended, and the maintenance work efficiency can be improved. When the brake release arm 38 is operated, the operation is reliably transmitted to the brake arm 25 via the connecting plate 39.
[0046]
A guide fitting 44 is provided on the brake release arm 38, and the release cable mounting plate 45 is fitted in the U-shaped groove to guide the operation of the brake release arm 38. Further, the core wire of the release cable 47 is connected to the guide fitting 44, and the end of the urging tool 46 is connected to the guide fitting 44. With such a configuration, the number of parts can be reduced and productivity can be improved.
[0047]
【The invention's effect】
  As described above, the present invention has a frame in which a stator winding is provided on the inner peripheral surface of the opening edge of the recess having a bowl shape, and the opening of the recess provided upright on the bottom of the recess of the frame. A main shaft extending in the direction of the part, and a bowl shape similar to the recess of the frame body, arranged in a fitted state in the recess of the frame body and pivotally supported by the main shaft, and the outer periphery on the bottom side of the frame body recess A driving sheave is formed on the surface, an armature is provided on the outer peripheral surface on the opening edge side of the recess with a diameter larger than the diameter of the driving sheave, and a braking surface is provided on the inner peripheral surface on the opening edge side A saddle-like rotator, a support plate whose edges are attached to the opening edges facing each other of the frame, and a brake plate provided on the support plate and disposed in a recess of the saddle-like rotator With a brake to brake the surfaceA fixed arm mounted on the support plate, an electromagnet mounting plate that is disposed on both sides of the fixed arm and the electromagnet of the brake, the end is fastened to the fixed arm, and the electromagnet is sandwiched by the intermediate portion, and the intermediate portion is fixed An eccentric shaft inserted into the arm and having an eccentric portion at the end fitted to the electromagnet mounting plate;Is provided.
[0048]
  As a result, the brake is disposed in the recess of the bowl-shaped rotating body, and there is no member protruding from the outer periphery of the frame body, so that the hoisting machine can be reduced in outer shape and can be easily installed in a narrow space. it can. Further, the brake plate can be inspected by removing the support plate, and it is difficult to obtain a space for maintenance work, so that there is an effect of eliminating the problem that the installation of the hoisting machine is restricted. Moreover, a brake is attached to the support plate fastened to the frame, and the brake can be removed from the motor side by removing the support plate from the frame. Therefore, maintenance and inspection work of the motor such as the stator winding can be facilitated, and the maintenance work efficiency is improved.Further, by mounting the electromagnet, the electromagnet can be easily mounted at a predetermined position even if the electromagnet is made of a laminated structure, and the productivity is improved. Furthermore, the electromagnet can be moved back and forth with respect to the fixed arm by loosening the fastening of the electromagnet mounting plate to the fixed arm and rotating the eccentric shaft. For this reason, the gap between the electromagnet and the armature can be easily adjusted, and there is an effect of improving the maintenance work efficiency.
[0049]
In addition, as described above, the present invention is a brake switch that is mounted on the support plate and disposed at the position corresponding to the frame body, and is mounted on the brake arm of the brake and disposed at the position corresponding to the frame body, and presses the brake switch. A pressing element is provided.
[0050]
As a result, the brake is disposed in the recess of the bowl-shaped rotator, and the brake switch and the presser for pressing the brake switch are disposed at positions corresponding to the frame. For this reason, there is no member which protrudes from the outer periphery of a frame, the external shape of a winding machine can be made small, and the winding machine which can be easily installed in a narrow space can be obtained. Further, the brake plate can be inspected by removing the support plate, and it is difficult to obtain a space for maintenance work, so that there is an effect of eliminating the problem that the installation of the hoisting machine is restricted. Moreover, a brake is attached to the support plate fastened to the frame, and the brake can be removed from the motor side by removing the support plate from the frame. Therefore, maintenance and inspection work of the motor such as the stator winding can be facilitated, and the maintenance work efficiency is improved.
[0053]
In addition, as described above, the present invention is configured by two sets that perform braking operation in opposite directions to each other, and the two sets are provided with a brake that is provided in a symmetrical form around the main axis.
[0054]
As a result, the loads generated by the operating load of the brake and acting on the support plate by the two sets of brakes cancel each other. Therefore, the support plate and the brake can be miniaturized, and the hoisting machine itself can be miniaturized, so that the hoisting machine itself can be installed in a narrow space, and there is an effect of reducing restrictions on the installation of the hoisting machine.
[0055]
In addition, as described above, the present invention is provided with a brake having an armature connected to a braking arm by a connecting pin and a braking piece that is integrally mounted on the armature.
[0056]
Thus, the braking arm only needs to transmit the urging force of the braking spring and support the braking force. For this reason, it is not necessary to consider the amount of extra bending, and the cross-sectional area of the braking arm can be reduced. Accordingly, the brake can be reduced in size, and the hoisting machine itself can be reduced in size accordingly. It can be installed in a space and has the effect of reducing restrictions on the installation of the hoist.
[0057]
In addition, as described above, the present invention is provided with a braking arm provided with an armature that is disposed facing each other apart from each other and is integrally formed with a braking piece.
[0058]
As a result, the braking arm is not twisted due to the load of the braking spring, the load of the electromagnet, and the like, and the braking arm can be lightened. Accordingly, the size of the brake can be reduced, and the hoisting machine itself can be reduced in size, so that it can be installed in a narrow space, and there is an effect of reducing restrictions on the installation of the hoisting machine.
[0059]
In addition, as described above, the present invention has a double-screw bolt shape and a fastener in which a nut is screwed into an end portion, and braking arms arranged facing each other are connected to one end of the connector. One of the braking arms is detachably fastened.
[0060]
As a result, one of the braking arms can be removed from the connector, and the braking piece and the armature can be easily inspected and replaced. Therefore, there is an effect of improving maintenance work efficiency.
[0065]
In addition, as described above, the present invention is provided with the pressing body that is fastened to the support plate on one side and presses the electromagnet in the braking operation direction of the brake by the other side.
[0066]
Thereby, since the electromagnet is pressed by the pressing body, there is no gap in the fitting portion between the electromagnet and the electromagnet mounting plate, and the electromagnet mounting plate is arranged at a predetermined position of the fixed arm, The position of the electromagnet can be set with a predetermined gap between the two. Further, since the backlash does not occur when the electromagnet is advanced and retracted by rotating the eccentric shaft, the positioning can be easily performed and the maintenance work efficiency can be improved.
[0067]
  In addition, as described above, the present inventionA frame having a stator winding on the inner peripheral surface of the opening edge of the recess having a bowl-like shape, a main shaft standing on the bottom of the recess of the frame and extending in the direction of the opening, It has a bowl shape similar to that of the recess, and is fitted in the recess of the frame body and pivotally supported by the main shaft. A driving sheave is formed on the outer peripheral surface of the bottom surface side of the frame recess, and the opening edge An armature is provided on the outer peripheral surface on the side and a brake surface is provided on the inner peripheral surface on the opening edge side, and an edge is opposed to the frame body. A support plate mounted on the opening edge, a brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface, and a brake provided on the support plate for artificially performing the braking operation of the brake A brake release mechanism that is released by operation;One side is fastened by a fastener between the braking arms of the brakes arranged facing each other away from each other and is attached to a fixture for the braking arm of the braking spring of the brake, and the other side is braked by the braking release mechanism. A connection plate connected to an engagement pin provided on the release arm is provided.
[0068]
  by this,By removing the support plate from the frame, the brake and the brake release mechanism can be removed together from the motor side including the stator winding and the armature. Therefore, maintenance and inspection work of the motor such as the stator winding can be facilitated, and the maintenance work efficiency is improved. Also,The load due to the operation of the brake release arm acts evenly on both brake arms without causing twisting. For this reason, the braking arm can be made lighter and the hoisting machine itself can be reduced in size, and it can be installed in a narrow space, which has the effect of reducing restrictions on the hoisting machine installation.
[0069]
In addition, as described above, the present invention is provided with the engagement pin having the small diameter portion engaged by forming a gap in the engagement portion of the connecting plate.
[0070]
As a result, the displacement due to the braking operation of the braking arm during normal time is not transmitted to the braking release arm. For this reason, the wear at the engaging portion of the engaging pin and the connecting plate is reduced, the life can be extended, and the maintenance work efficiency is improved.
[0071]
  In addition, as described above, the present inventionA frame having a stator winding on the inner peripheral surface of the opening edge of the recess having a bowl-like shape, a main shaft standing on the bottom of the recess of the frame and extending in the direction of the opening, It has a bowl shape similar to that of the recess, and is fitted in the recess of the frame body and pivotally supported by the main shaft. A driving sheave is formed on the outer peripheral surface of the bottom surface side of the frame recess, and the opening edge An armature is provided on the outer peripheral surface on the side and a brake surface is provided on the inner peripheral surface on the opening edge side, and an edge is opposed to the frame body. A support plate mounted on the opening edge, a brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface, and a brake provided on the support plate for artificially performing the braking operation of the brake A brake release mechanism that is released by operation;A U-shaped groove provided at the rotating end of the brake release arm forming the brake release mechanism is slidably fitted to the release cable mounting plate provided on the support plate, and the brake release mechanism A guide fitting is provided to which urging tools for urging the release ends of the release cable and the brake release arm in the anti-brake release direction are connected.
[0072]
  by this,By removing the support plate from the frame, the brake and the brake release mechanism can be removed together from the motor side including the stator winding and the armature. Therefore, maintenance and inspection work of the motor such as the stator winding can be facilitated, and the maintenance work efficiency is improved. Also,The turning movement of the braking release arm is guided by the release cable mounting plate by the guide fitting provided at the turning end of the braking release arm, and the release cable and the urging tool are connected to the guide fitting. Therefore, the number of parts is reduced and the productivity is improved.
[Brief description of the drawings]
FIG. 1 is a front view showing a first embodiment of the present invention.
FIG. 2 is a sectional view taken along line BB in FIG.
FIG. 3 is a front view of a support plate and a brake portion in FIG.
4 is an enlarged cross-sectional view taken along the line CC in FIG. 3;
FIG. 5 is an enlarged view of an electromagnet of the brake shown in FIG. 3;
6 is a cross-sectional view taken along the line DD of FIG.
FIG. 7 is an enlarged view of a braking arm portion of the brake of FIG.
8 is a cross-sectional view taken along line EE in FIG.
FIG. 9 is a view showing a brake releasing device attached to the brake in FIG. 3;
10 is a right side view of the main part of FIG. 9. FIG.
FIG. 11 is a view showing a conventional elevator hoisting machine, and is a front view in an installed state.
12 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
2 Frame, 3 Opening edge, 4 Bottom of recess, 15 Support plate, 17 Spindle, 18 Stator winding, 19 Rotor-like rotating body, 20 Drive sheave, 21 Armature, 22 Braking surface, 23 Brake, 25 Braking arm, 26 Braking spring, 27 Braking piece, 28 Connecting pin, 29 Electromagnet, 30 Armature, 31 Electromagnet mounting plate, 32 Fixed arm, 33 Eccentric shaft, 34 Intermediate part, 35 Eccentric part, 36 Braking switch, 37 Presser , 38 Brake release arm, 39 Connecting plate, 40 Fastener, 41 Attachment, 42 Engagement pin, 43 Small diameter part, 44 Guide bracket, 45 Release cable attachment plate, 46 Biasing tool, 47 Release cable, 470 Brake release mechanism 48 Pressing body.

Claims

A frame body in which a stator winding is provided on the inner peripheral surface of the opening edge of a recess having a bowl shape;
A main shaft that is erected on the bottom of the recess of the frame and extends in the direction of the opening;
It has a bowl shape similar to the recess of the frame body, is fitted in the recess of the frame body, is pivotally supported by the main shaft, and is driven on the outer peripheral surface on the bottom side of the frame recess. A saddle-like rotator in which an armature is provided on the outer peripheral surface on the opening edge side with a larger diameter than the diameter of the drive sheave, and a braking surface is provided on the inner peripheral surface on the opening edge side; ,
A support plate attached to the opening edges of the frame opposite to each other;
A brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface ;
A fixed arm attached to the support plate;
An electromagnet mounting plate disposed on both sides of the fixed arm and the electromagnet of the brake, and having an end portion fastened to the fixed arm and sandwiching the electromagnet by an intermediate portion;
An elevator hoisting machine comprising: an eccentric shaft having an intermediate portion inserted through the fixed arm and an eccentric portion at an end thereof fitted into the electromagnet mounting plate .

A brake switch mounted on the support plate and arranged at a position corresponding to the inside of the frame;
The elevator hoisting machine according to claim 1, further comprising: a pressing element that is mounted on a braking arm of a brake and is disposed at a position corresponding to the inside of the frame and that presses the braking switch.

The elevator hoisting machine according to claim 1, wherein the brake is composed of two sets that perform braking operation in opposite directions, and the two sets are installed in a symmetrical form around the main shaft. .

The brake,
An armature connected to the braking arm by a connecting pin;
The elevator hoisting machine according to claim 3 , further comprising a braking piece that is integrally mounted on the armature.

The elevator hoisting machine according to claim 4 , wherein the braking arms are arranged facing each other apart from each other, and an armature equipped with a braking piece is arranged between the braking arms.

The braking arms arranged facing each other are connected by a fastener having a double screw bolt shape and a nut screwed into the end, and one end of the braking arm is detachably fastened to one end of the connecting tool. The elevator hoisting machine according to claim 5 , wherein the elevator hoisting machine is an elevator.

Elevator hoisting machine according to claim 1, further comprising a pressing member for pressing the electromagnet braking operation direction of the brake by one side is fastened to the support plate the other side.

A frame body in which a stator winding is provided on the inner peripheral surface of the opening edge of a recess having a bowl shape;
A main shaft that is erected on the bottom of the recess of the frame and extends in the direction of the opening;
It has a bowl shape similar to the recess of the frame body, is fitted in the recess of the frame body, is pivotally supported by the main shaft, and is driven on the outer peripheral surface on the bottom side of the frame recess. A saddle-like rotator in which an armature is provided on the outer peripheral surface on the opening edge side with a larger diameter than the diameter of the drive sheave, and a braking surface is provided on the inner peripheral surface on the opening edge side; ,
A support plate attached to the opening edges of the frame opposite to each other;
A brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface;
A brake release mechanism that is provided on the support plate and releases the braking operation of the brake by human operation;
One side is fastened by a fastener between the braking arms of the brake, which are arranged facing each other away from each other, and is attached to a fixture for the braking arm of the braking spring of the brake. elevators hoisting machine having the braking release arm connected is connected to the engaging pin provided on board of the release mechanism <br/>.

The elevator hoisting machine according to claim 8 , wherein the engaging pin has a small-diameter portion engaged by forming a gap in the engaging portion of the connecting plate.

A frame body in which a stator winding is provided on the inner peripheral surface of the opening edge of a recess having a bowl shape;
A main shaft that is erected on the bottom of the recess of the frame and extends in the direction of the opening;
It has a bowl shape similar to the recess of the frame body, is fitted in the recess of the frame body, is pivotally supported by the main shaft, and is driven on the outer peripheral surface on the bottom side of the frame recess. A saddle-like rotator in which an armature is provided on the outer peripheral surface on the opening edge side with a larger diameter than the diameter of the drive sheave, and a braking surface is provided on the inner peripheral surface on the opening edge side; ,
A support plate attached to the opening edges of the frame opposite to each other;
A brake provided on the support plate and disposed in the recess of the bowl-shaped rotator to brake the braking surface;
A brake release mechanism that is provided on the support plate and releases the braking operation of the brake by human operation;
A U-shaped groove provided at the pivot end of the brake release arm forming the brake release mechanism is slidably fitted to a release cable mounting plate provided on the support plate, and the brake release cable and elevators hoist urging member is provided <br/> a guide bracket which is connected respectively to urge the rotating end of the braking release arm opposite to the braking release direction of the release mechanism.