[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.tranquillo.cz\/zavity-kolem-nas\/#Article","mainEntityOfPage":"https:\/\/www.tranquillo.cz\/zavity-kolem-nas\/","headline":"Z\u00e1vity kolem n\u00e1s","name":"Z\u00e1vity kolem n\u00e1s","description":"Jsou definov\u00e1ny jako technick\u00e9 prvky v\u011bt\u0161inou strojn\u00edch sou\u010d\u00e1st\u00ed. Jejich tvar ur\u010duje z\u00e1vitov\u00e1 plocha, kter\u00e1 vznik\u00e1 t\u00edm, \u017ee se ur\u010dit\u00fd profil navine v dan\u00e9m stoup\u00e1n\u00ed na v\u00e1lec pod\u00e9l \u0161roubovice. Tu vytv\u00e1\u0159\u00ed bod, jestli\u017ee se rovnom\u011brn\u011b ot\u00e1\u010d\u00ed kolem pevn\u00e9 osy a sou\u010dasn\u011b se v jej\u00edm sm\u011bru rovnom\u011brn\u011b posouv\u00e1. Rozd\u011bl\u00edme-li z\u00e1vity podle sm\u011bru, mohou b\u00fdt prav\u00e9, ty se […]","datePublished":"2019-12-03","dateModified":"2023-05-22","author":{"@type":"Person","@id":"https:\/\/www.tranquillo.cz\/author\/#Person","name":"","url":"https:\/\/www.tranquillo.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/5667bceccdce92893bac6a7981a373152a8b3fa0ab99c198ba0ac0b49a934248?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/5667bceccdce92893bac6a7981a373152a8b3fa0ab99c198ba0ac0b49a934248?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"tranquillo.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.tranquillo.cz\/wp-content\/uploads\/img_a369028_w1711_t1581320502.jpg","url":"https:\/\/www.tranquillo.cz\/wp-content\/uploads\/img_a369028_w1711_t1581320502.jpg","height":0,"width":0},"url":"https:\/\/www.tranquillo.cz\/zavity-kolem-nas\/","about":["Mu\u017ei"],"wordCount":423,"articleBody":"          Jsou definov\u00e1ny jako technick\u00e9 prvky v\u011bt\u0161inou strojn\u00edch sou\u010d\u00e1st\u00ed. Jejich tvar ur\u010duje z\u00e1vitov\u00e1 plocha, kter\u00e1 vznik\u00e1 t\u00edm, \u017ee se ur\u010dit\u00fd profil navine v dan\u00e9m stoup\u00e1n\u00ed na v\u00e1lec pod\u00e9l \u0161roubovice. Tu vytv\u00e1\u0159\u00ed bod, jestli\u017ee se rovnom\u011brn\u011b ot\u00e1\u010d\u00ed kolem pevn\u00e9 osy a sou\u010dasn\u011b se v jej\u00edm sm\u011bru rovnom\u011brn\u011b posouv\u00e1.  Rozd\u011bl\u00edme-li z\u00e1vity podle sm\u011bru, mohou b\u00fdt prav\u00e9, ty se pou\u017e\u00edvaj\u00ed ve valn\u00e9 v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f, nebo lev\u00e9, pou\u017e\u00edvan\u00e9 jen nepatrn\u011b. Podle navinut\u00ed rozezn\u00e1v\u00e1me vnit\u0159n\u00ed, nap\u0159\u00edklad u matic nebo v\u011bt\u0161\u00edch sou\u010d\u00e1st\u00ed, do kter\u00fdch je nutn\u00e9 uchytit \u0161roub, a vn\u011bj\u0161\u00ed z\u00e1vity, ty p\u0159edstavuje typicky \u0161roub nebo ji\u017e zm\u00edn\u011bn\u00e1 PET lahev. Nej\u010dast\u011bji se vyu\u017e\u00edvaj\u00ed r\u016fzn\u00e9 \u0161roubky, \u0161rouby a vruty jako spojovac\u00ed materi\u00e1l k rozeb\u00edrateln\u00e9mu spojen\u00ed r\u016fzn\u00fdch materi\u00e1l\u016f. Ty jsou opat\u0159eny vn\u011bj\u0161\u00edm z\u00e1vitem po cel\u00e9 d\u00e9lce d\u0159\u00edku nebo jen na jeho \u010d\u00e1sti. \u0160rouby maj\u00ed d\u0159\u00edk v\u00e1lcovit\u00e9ho tvaru, vruty s ohledem na sv\u00e9 ur\u010den\u00ed m\u00edvaj\u00ed d\u0159\u00edk ku\u017eelov\u00fd s ostr\u00fdm hrotem pro lep\u0161\u00ed pr\u016fnik do materi\u00e1lu. Rozd\u00edl mezi \u0161rouby a vruty je p\u0159edev\u0161\u00edm v tom, \u017ee zat\u00edmco \u0161roubov\u00fd spoj funguje na principu t\u0159en\u00ed mezi plochami vn\u011bj\u0161\u00edho a vnit\u0159n\u00edho z\u00e1vitu, u spojen\u00ed pomoc\u00ed vrutu se vyu\u017e\u00edv\u00e1 t\u0159en\u00ed mezi vrutem a materi\u00e1lem, do n\u011bho\u017e je vrut za\u0161roubov\u00e1n. Vruty se pou\u017e\u00edvaj\u00ed do tv\u00e1rn\u00fdch a relativn\u011b m\u011bkk\u00fdch materi\u00e1l\u016f, do d\u0159eva nebo plastu. S vyu\u017eit\u00edm hmo\u017edinky je m\u016f\u017eeme pou\u017e\u00edt i do tvrd\u00fdch materi\u00e1l\u016f, hmo\u017edinka m\u011bkk\u00fd materi\u00e1l vlastn\u011b nahrazuje. Pro \u0159ez\u00e1n\u00ed vn\u011bj\u0161\u00edch z\u00e1vit\u016f se pou\u017e\u00edv\u00e1 z\u00e1vitov\u00e9 o\u010dko nebo z\u00e1vitnice, pro vnit\u0159n\u00ed z\u00e1vity ve v\u00e1lcov\u00e9m otvoru se pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 z\u00e1vitn\u00edky, nap\u0159\u00edklad maticov\u00fd metrick\u00fd, trubkov\u00fd nebo trap\u00e9zov\u00fd z\u00e1vitn\u00edk. Ten m\u00e1 tvar \u0161roubu, b\u00fdv\u00e1 vyroben z n\u00e1strojov\u00e9, rychlo\u0159ezn\u00e9 oceli nebo slinut\u00e9ho karbidu a zakalen na vysokou tvrdost. Z\u00e1vity je ru\u010dn\u011b mo\u017en\u00e9 \u0159ezat, p\u0159edev\u0161\u00edm v dom\u00e1c\u00edch podm\u00ednk\u00e1ch a mal\u00fdch d\u00edln\u00e1ch. P\u0159i velkov\u00fdrob\u011b se samoz\u0159ejm\u011b vyu\u017e\u00edv\u00e1 strojn\u00edho \u0159ez\u00e1n\u00ed z\u00e1vit\u016f.                                                                                                                                                                                                                                                                                                                                                                                           4.1\/5 - (14 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Z\u00e1vity kolem n\u00e1s","item":"https:\/\/www.tranquillo.cz\/zavity-kolem-nas\/#breadcrumbitem"}]}]