[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.d55.cz\/stavitelne-a-pevne-vystruzniky-pro-velmi-presne-otvory\/#Article","mainEntityOfPage":"https:\/\/www.d55.cz\/stavitelne-a-pevne-vystruzniky-pro-velmi-presne-otvory\/","headline":"Staviteln\u00e9 a pevn\u00e9 v\u00fdstru\u017en\u00edky pro velmi p\u0159esn\u00e9 otvory","name":"Staviteln\u00e9 a pevn\u00e9 v\u00fdstru\u017en\u00edky pro velmi p\u0159esn\u00e9 otvory","description":"Kdy\u017e pot\u0159ebujete vyrobit otvor, s\u00e1hnete po vrt\u00e1ku a vrta\u010dce. Ale kdy\u017e by m\u011bl m\u00edt otvor p\u0159esn\u011bj\u0161\u00ed rozm\u011br a jakost povrchu, aby \u0161lo o pohybliv\u00fd spoj, nap\u0159. lo\u017eiska na h\u0159\u00eddeli, budete pot\u0159ebovat v\u00fdstru\u017en\u00edk. \u010ceho se doc\u00edl\u00ed v\u00fdstru\u017en\u00edkem Jakost povrchu \u2013 n\u011bkdy se tak\u00e9 pou\u017e\u00edv\u00e1 term\u00edn \u201edrsnost povrchu\u201c. Otvory zhotoven\u00e9 vrt\u00e1kem nemaj\u00ed p\u0159\u00edli\u0161 v\u00fdrazn\u00fd po\u017eadavek na jemn\u00fd […]","datePublished":"2021-06-16","dateModified":"2023-05-09","author":{"@type":"Person","@id":"https:\/\/www.d55.cz\/author\/#Person","name":"","url":"https:\/\/www.d55.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/b70ca3e57a61efa655568ea1bab21ec867ae74beaf8b182b9ca53fe6fcb8cee7?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/b70ca3e57a61efa655568ea1bab21ec867ae74beaf8b182b9ca53fe6fcb8cee7?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"d55.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.d55.cz\/wp-content\/uploads\/vrt%C3%A1k%20v%20%C4%8Dinnosti.jpg","url":"https:\/\/www.d55.cz\/wp-content\/uploads\/vrt%C3%A1k%20v%20%C4%8Dinnosti.jpg","height":0,"width":0},"url":"https:\/\/www.d55.cz\/stavitelne-a-pevne-vystruzniky-pro-velmi-presne-otvory\/","about":["N\u00e1kupy"],"wordCount":381,"articleBody":"   Kdy\u017e pot\u0159ebujete vyrobit otvor, s\u00e1hnete po vrt\u00e1ku a vrta\u010dce. Ale kdy\u017e by m\u011bl m\u00edt otvor p\u0159esn\u011bj\u0161\u00ed rozm\u011br a jakost povrchu, aby \u0161lo o pohybliv\u00fd spoj, nap\u0159. lo\u017eiska na h\u0159\u00eddeli, budete pot\u0159ebovat v\u00fdstru\u017en\u00edk.\u010ceho se doc\u00edl\u00ed v\u00fdstru\u017en\u00edkemJakost povrchu \u2013 n\u011bkdy se tak\u00e9 pou\u017e\u00edv\u00e1 term\u00edn \u201edrsnost povrchu\u201c. Otvory zhotoven\u00e9 vrt\u00e1kem nemaj\u00ed p\u0159\u00edli\u0161 v\u00fdrazn\u00fd po\u017eadavek na jemn\u00fd povrch, jde zpravidla o otvory, kde jsou sou\u010d\u00e1stky ulo\u017een\u00e9 s v\u011bt\u0161\u00ed v\u016fl\u00ed, nap\u0159. \u0161roubov\u00e9 nebo n\u00fdtov\u00e9 spoje. Pot\u0159ebujete-li v\u0161ak nap\u0159. um\u00edstit v p\u0159evodovce na h\u0159\u00eddeli lo\u017eiska, ta mus\u00ed m\u00edt povrch hlad\u0161\u00ed a p\u0159esn\u011bji vyroben\u00fd. Existuje tabulka drsnost\u00ed povrchu Ra, kde vy\u0161\u0161\u00ed hodnoty znamenaj\u00ed povrch hrub\u0161\u00ed. Nap\u0159. vrt\u00e1kem lze vyrobit otvor s drsnost\u00ed 1,6, zat\u00edmco s v\u00fdstru\u017en\u00edkem ji\u017e dos\u00e1hnete hodnoty 0,4, tedy podobn\u011b, jako brou\u0161en\u00edm brusn\u00fdm kotou\u010dem.P\u0159esn\u00fd rozm\u011br \u2013 v souvislosti s jakost\u00ed povrchu lze hovo\u0159it i o p\u0159esn\u011bj\u0161\u00edm rozm\u011bru. Otvor vyvrtan\u00fd vrt\u00e1kem nem\u016f\u017ee b\u00fdt tak p\u0159esn\u00fd, jako obroben\u00fd v\u00fdstru\u017en\u00edkem. Vystru\u017eov\u00e1n\u00ed ru\u010dn\u00ed \u010di strojn\u00ed m\u00e1 za c\u00edl men\u0161\u00ed rozm\u011brovou toleranci p\u0159i v\u00fdrob\u011b otvor\u016f, jako jsou v\u00fd\u0161e uv\u00e1d\u011bn\u00e1 lo\u017eiska nebo klikov\u00e9 h\u0159\u00eddele spalovac\u00edch motor\u016f.Staviteln\u00e9 v\u00fdstru\u017en\u00edky \u2013 v\u00fdstru\u017en\u00edky existuj\u00ed ve dvou z\u00e1kladn\u00edch podob\u00e1ch \u2013 pevn\u00e9 a staviteln\u00e9. Pevn\u00e9 se vyu\u017e\u00edvaj\u00ed p\u0159ev\u00e1\u017en\u011b v s\u00e9riov\u00e9 v\u00fdrob\u011b, v\u00fdstru\u017en\u00edky staviteln\u00e9 se t\u00fdkaj\u00ed v\u011bt\u0161inou mal\u00fdch s\u00e9ri\u00ed obrobk\u016f nebo \u00fadr\u017ebov\u00fdch a oprav\u00e1rensk\u00fdch prac\u00ed.Geometrie \u2013 tvarov\u00e1 geometrie je dal\u0161\u00ed podstatn\u00e1 vlastnost vystru\u017eovan\u00fdch d\u011br, vrt\u00e1ky toti\u017e nezaru\u010duj\u00ed u otvor\u016f takovou geometrickou p\u0159esnost, co\u017e u spojen\u00ed n\u011bkter\u00fdch sou\u010d\u00e1st\u00ed hraje v\u00fdznamnou roli. Kup\u0159\u00edkladu klikov\u00e9 h\u0159\u00eddele a jejich lo\u017eiska mohou pracovat spolehliv\u011b pouze za p\u0159edpokladu, \u017ee budou vyrobena s dodr\u017een\u00edm p\u0159\u00edsn\u00fdch po\u017eadavk\u016f rozm\u011brov\u00fdch, stejn\u011b tak jako po\u017eadavk\u016f na jakost povrchu a po\u017eadavk\u016f na geometrickou p\u0159esnost.                                                                                                                                                                                                                                                                                                                                                                                          4.1\/5 - (14 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Staviteln\u00e9 a pevn\u00e9 v\u00fdstru\u017en\u00edky pro velmi p\u0159esn\u00e9 otvory","item":"https:\/\/www.d55.cz\/stavitelne-a-pevne-vystruzniky-pro-velmi-presne-otvory\/#breadcrumbitem"}]}]