Kodi kubowola nyundo ndi chiyani?

Ponena za nyundo zobowola nyundo yamagetsi, choyamba timvetsetse kuti nyundo yamagetsi ndi chiyani?

Nyundo yamagetsi imakhazikika pa kubowola kwamagetsi ndipo imawonjezera pisitoni yokhala ndi ndodo yolumikizira crankshaft yoyendetsedwa ndi mota yamagetsi.Imapondereza mpweya mmbuyo ndi mtsogolo mu silinda, kuchititsa kusintha kwanthawi ndi nthawi kwamphamvu ya mpweya mu silinda.Kuthamanga kwa mpweya kumasintha, nyundo imabwereranso mu silinda, zomwe zimakhala zofanana ndi kugwiritsa ntchito nyundo kugogoda mosalekeza pobowola mozungulira.Zobowola nyundo zitha kugwiritsidwa ntchito pazigawo zophwanyika chifukwa zimatulutsa kusuntha kofulumira (zovuta zanthawi zambiri) motsatira chitoliro chobowola pamene akuzungulira.Sichifuna ntchito zambiri zamanja, ndipo imatha kubowola mabowo mu konkire ya simenti ndi miyala, koma osati zitsulo, matabwa, pulasitiki kapena zipangizo zina.

Choyipa ndichakuti kugwedezeka kwake ndi kwakukulu ndipo kungayambitse kuwonongeka kwazinthu zozungulira.Kwa zitsulo zazitsulo mumapangidwe a konkire, zobowola wamba sizingadutse bwino, ndipo kugwedezeka kumabweretsanso fumbi lambiri, ndipo kugwedezeka kumatulutsanso phokoso lalikulu.Kulephera kunyamula zida zodzitetezera kukhoza kukhala koopsa ku thanzi.

Kodi kubowola nyundo ndi chiyani?Atha kusiyanitsa pafupifupi mitundu iwiri yogwirira ntchito: SDS Plus ndi Sds Max.

SDS-Plus - Maenje awiri ndi ma grooves awiri ozungulira

Dongosolo la SDS lomwe linapangidwa ndi BOSCH mu 1975 ndiye maziko a zida zambiri zamasiku ano zobowola nyundo zamagetsi.Sizikudziwikanso momwe chobowolera choyambirira cha SDS chinkawonekera.Dongosolo lodziwika bwino la SDS-Plus tsopano linapangidwa pamodzi ndi Bosch ndi Hilti.Nthawi zambiri amamasuliridwa kuti "Spannen durch System" (dongosolo losintha mwachangu), dzina lake limachokera ku mawu achijeremani akuti "S tecken - D rehen - Safety".

Kukongola kwa SDS Plus ndikuti mumangokankhira chobowola mu chuck yodzaza ndi masika.Palibe kumangitsa kofunikira.Chobowolacho sichimakhazikika pa chuck, koma chimasunthira mmbuyo ndi mtsogolo ngati pisitoni.Pozungulira, chobowolacho sichidzatuluka mu chuck chifukwa cha ma dimples awiri pa shank ya chida chozungulira.SDS shank kubowola kwa nyundo ndi kothandiza kwambiri kuposa mitundu ina ya ma shank kubowola chifukwa cha ma groove awo awiri, kulola kumenyetsa kothamanga kwambiri komanso kuwongolera bwino kwa nyundo.Makamaka, nyundo zobowola nyundo zomwe zimagwiritsidwa ntchito pobowola nyundo pamiyala ndi konkriti zitha kulumikizidwa ku shank ndi chuck system yopangidwa makamaka kuti izi zitheke.Dongosolo lotulutsa mwachangu la SDS ndiye njira yokhazikika yolumikizira nyundo zamasiku ano.Sikuti zimangopereka njira yachangu, yosavuta komanso yotetezeka yotsekera pobowola, komanso zimatsimikizira kusamutsa kwamphamvu kwapabowo komweko.

SDS-Max - Chingwe chozungulira maenje asanu

SDS-Plus ilinso ndi malire.Nthawi zambiri, chogwirira cha SDS Plus ndi 10mm, kotero kubowola mabowo ang'onoang'ono ndi apakatikati si vuto.Pobowola mabowo akulu kapena akuya, torque yosakwanira imatha kupangitsa kuti chobowolacho chimamamire komanso kuti chogwiriracho chisweke pogwira ntchito.BOSCH idapanga SDS-MAX kutengera SDS-Plus, yomwe ili ndi maenje atatu ndi maenje awiri.Chogwirizira cha SDS Max chili ndi ma grooves asanu.Pali mipata itatu yotseguka ndi mipata iwiri yotsekeka (kuteteza pobowola kuti zisawuluke).Amadziwikanso kuti ma groove atatu ndi maenje awiri ozungulira, omwe amadziwikanso kuti maenje asanu ozungulira.Chogwirizira cha SDS Max chili ndi mainchesi 18 mm ndipo ndichoyenera kugwira ntchito zolemetsa kuposa chogwirira cha SDS-Plus.Chifukwa chake, chogwirira cha SDS Max chimakhala ndi torque yamphamvu kuposa SDS-Plus ndipo ndi yoyenera kugwiritsa ntchito zibowolo zazikulu zokulirapo pamabowo akulu ndi akuya.Anthu ambiri adakhulupirira kale kuti dongosolo la SDS Max lidzalowa m'malo mwa dongosolo lakale la SDS.M'malo mwake, kusintha kwakukulu kwa dongosololi ndikuti pisitoni imakhala ndi sitiroko yayitali, kotero ikagunda pobowola, mphamvu yake imakhala yamphamvu ndipo kubowola kumadula bwino.Ngakhale kukwezedwa kwa dongosolo la SDS, dongosolo la SDS-Plus lidzapitiriza kugwiritsidwa ntchito.The SDS-MAX's 18mm shank diameter ya SDS-MAX imapangitsa kuti ikhale yokwera mtengo popanga makina ang'onoang'ono.Sizinganenedwe kuti ndi m'malo mwa SDS-Plus, koma chothandizira.Nyundo zamagetsi ndi zobowola zimagwiritsidwa ntchito mosiyana kunja.Pali mitundu yosiyanasiyana ya zogwirira ntchito ndi zida zamphamvu zolemetsa nyundo zosiyanasiyana komanso kukula kwake kobowola.

Kutengera msika, SDS-plus ndiyomwe imapezeka kwambiri ndipo nthawi zambiri imakhala ndi zobowola kuyambira 4 mm mpaka 30 mm (5/32 in. mpaka 1-1/4 in.).Kutalika konse 110mm, kutalika kwa 1500mm.SDS-MAX nthawi zambiri imagwiritsidwa ntchito pamabowo akulu ndi zonyamula.Kubowola kwamphamvu kumakhala pakati pa 1/2 inch (13 mm) ndi 1-3/4 inch (44 mm).Kutalika konse ndi mainchesi 12 mpaka 21 (300 mpaka 530 mm).