"Zuciya" na Tricone Roller Bits: Nau'o'in Ƙaƙwalwar Ƙaƙwalwar Ƙaƙwalwar Ƙaƙwalwar Ƙirar Ƙirar Ƙirar Ƙwararrun Ƙwararrun Ƙwararru

A wuraren binciken man fetur da iskar gas da wuraren hako albarkatun kasa, daabin nadi mazugi bitkamar “dabba mai ƙarfe” tana shiga cikin ƙasa mai zurfi, kuma abin da ke ɗauke da shi yana zama “zuciyar” wannan dabbar. Yana goyan bayan saurin jujjuyawar juzu'i na nadi, yana jure wa hadaddun matsi na ƙasa da gogayya, kuma kai tsaye yana ƙayyade rayuwar sabis na bit da ingancin ayyukan hakowa. A yau, za mu rushe nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan mazugi na abin nadi, bincika sirrin fasaha a bayan kowane da kuma yanayin da suka yi fice.

I. Zamiya Rubutun Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙasa

A cikin al'amuran hakowa na al'ada, ɗigon roba mai zamewa "tsohuwar soja" ce mai inganci tare da ƙimar amfani mai yawa. Tsarinsa ba shi da rikitarwa; ainihin ya ƙunshi nau'i-nau'i na zamiya mai zamiya wanda ya ƙunshi mujallar ƙarfe ta gami da bushing gami da juriyar lalacewa. Kamar guda biyu daidaitattun abubuwan ƙarfe na ƙarfe, yana watsa ƙarfi ta hanyar zamiya. Don hana kutsawa na ruwa mai hakowa, haɗin haɗin roba mai kwazo—kamar zoben hatimi na radial da gaskets na ƙarshe—an shigar da shi a gefen waje na rami mai ɗauka, kuma rami yana cike da man shafawa mai danko don samar da "shamaki mai kariya."

Mafi girman fa'idodin wannan haɓakar sun ta'allaka ne a cikin "kwanciyar hankali" da "tasirin farashi." Zamiya gogayya ƙira sa uniform load rarraba da kuma m tasiri juriya, kyale shi yi aiki stably ko da a karkashin high hakowa matsa lamba da kuma high juyi gudun yanayi. Bugu da ƙari, yana fasalta ƙananan farashin masana'anta da kulawa mai sauƙi—bayan lalacewa, kawai bushing yana buƙatar maye gurbin don mayar da bit ɗin zuwa sabis. Koyaya, hatimin roba shine "rauni": juriyar zafinsa gabaɗaya bai wuce 120 ba°C, kuma iyakar juriyarsa yana kusa da 50MPa, yana mai da shi rashin tasiri a cikin rijiyoyin zafin jiki mai zurfi ko lokacin da aka fallasa shi ga magudanan hakowa.

Saboda haka, "babban filin yaƙi" na zamewa shãfe haske na roba bearings yana cikin sassauƙa mai laushi zuwa matsakaici, kamar yumbu, dutsen yashi, da farar ƙasa. Sun dace musamman don hakowa na al'ada na kan teku,hakowa shugabanci, da kuma ayyukan rijiyoyin da ba su da zurfi inda sarrafa farashi ke da mahimmanci. Idan buƙatun ku na haƙowa sun yi daidai da waɗannan al'amuran, wannan ƙarfin zai zama zaɓi mai inganci mai tsada.

II. Juyawa Mai Hatimin Rubutu: Majagaba Mai Ƙarfi, Maɓallin Kayan aiki don Matsakaici-Hard zuwa Tsarin Tsaru

Lokacin da hakowa ya canza zuwa matsakaita-wuya zuwa tsattsauran tsari, irin su granite da basalt, ingancin zamewar ruɓaɓɓen da aka rufe ya zama ƙasa.—kuma shi ke nan a lokacin da mirgina shãfe haske bearings dauki tsakiyar mataki. Babban ci gabanta shine maye gurbin nau'in juzu'i na zamiya na gargajiya tare da abubuwa masu birgima (ƙwayoyin ƙwallon ƙafa ko abin nadi). Dukansu abubuwan da ke jujjuyawa da zoben ciki / na waje an yi su ne da ingantacciyar gawa mai jurewa, yayin da suke riƙe hatimin roba da tsarin hatimi na tushen mai da tsarin lubrication.

Mafi mahimmancin canjin da aka kawo ta hanyar juzu'i shine "raguwar ƙoƙari": juriya yana raguwa sosai,bit takarfin farawa ya fi karami, kuma yana iya samun saurin jujjuyawa mafi girma. Gudun hakowa na inji yawanci yana ƙaruwa da 10% -30%, wanda babu shakka babban fa'ida ne ga ayyukan da ke neman hakowa mai inganci. Duk da haka, shi ma ya gaji iyakoki na hatimin roba—Matsakaicin juriyar zafinsa ya ɗan fi na zamiya bearings, amma kawai ya kai 130°C, tare da juriya na kusan 60MPa. Bugu da ƙari kuma, abubuwan da ke juyawa suna da matukar damuwa ga ƙazanta; m barbashi a cikin hakowa ruwa iya sauƙi sa cunkoso, don haka mafi girma bukatun da ake sanya a kan tsabta na hakowa ruwa.

Dangane da waɗannan halaye, ana amfani da birgima ɗin da aka rufe na roba don hakowa cikin matsakaita-wuya zuwa tsattsauran ra'ayi, kamar sassan rijiyoyi masu zurfi da zurfin zurfi, da kuma ayyukan hakowa masu inganci waɗanda ke buƙatar manyan hakowa na inji. Dangane da zaɓin ruwan hakowa, sun fi dacewa da ruwa mai tsafta da ƙananan tsarin hakowa mara ƙarfi. Don ba da cikakkiyar wasa ga fa'idodin ingancin su, yin amfani da ruwa mai hakowa da ke ɗauke da ƙwaƙƙwaran ƙwanƙwasa ya kamata a kauce masa gwargwadon yiwuwa.

III. Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararru

A cikin yanayin zafi mai tsananin zafi da matsananciyar hakowa mai zurfi, kamar rijiyoyin geothermal da rijiyoyin iskar gas mai zurfi, hatimin roba na nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan biyu na farko za su gaza saboda yanayin zafi. At this point, the unsealed rolling air bearing becomes the only viable solution. Its structural design is quite unique: it adopts a rolling element friction pair but completely eliminates the sealing assembly. An haɗa rami mai ɗaure kai tsaye zuwa matsakaicin hakowa, kuma ana amfani da iska mai matsananciyar matsa lamba ko ruwan hakowa atomized azaman matsakaicin sanyaya da mai.

Ba tare da ƙuntatawa na hatimi ba, juriyar zafinsa ya sami babban tsalle mai inganci, ya kai sama da 200.°C, wanda ke da cikakken ikon daidaitawa zuwa yanayin zafi mai tsananin zafi. A lokaci guda kuma, iska mai tsananin ƙarfi ta ci gaba da tsaftace kogon da ke ɗauke da ita, ba wai kawai kawar da zafin da ke haifarwa ta hanyar gogayya ba, har ma da fitar da kutsawa cikin tsari yadda ya kamata don guje wa lalacewa, yana inganta aminci sosai a cikin matsanancin yanayi. Duk da haka, yana da "bukatun" na musamman: yana da matukar buƙatu akan tsarin samar da iska, yana buƙatar ingantaccen tushen iska mai ƙarfi. Moreover, the bearing life is directly affected by the cleanliness of the air source—idan najasa ya haɗu a cikin tushen iska, yana iya haifar da lalacewa cikin sauƙi.

Irin wannan nau'in na'ura yana da aikace-aikace na musamman, wanda aka fi amfani dashi a cikin matsanancin zafin jiki da matsanancin matsa lamba mai zurfi, da kuma matakai na musamman kamar hakowa marasa daidaituwa da hakowa na iska. A cikin waɗannan matakai, iska mai ƙarfi ba kawai tana samar da lubrication da sanyaya don ɗaukar hoto ba amma kuma yana hana ɓarnawar rijiyar yadda ya kamata, cimma burin biyu lokaci ɗaya. Ya kamata a lura, duk da haka, cewa bai dace da tsarin ruwa na tushen ruwa na al'ada ba kuma yana iya aiki ne kawai a cikin iskar gas ko watsa shirye-shiryen hakowa.—wannan shine ainihin ƙayyadaddun aikace-aikacen sa.

Summary: How to Choose Among the Three Bearings? Daidaita Yanayin Aiki shine Maɓalli

After learning about the details of these three bearings, it is clear that there is no absolute superiority or inferiority among them—kawai bambance-bambance a dacewa don takamaiman yanayin aiki. In simple terms, the core logic for selection can be summarized in three points:

Don tsari mai laushi zuwa matsakaici-tsayi da kuma ayyukan rijiyoyin da ba su da zurfi inda mahimmancin farashi ke da fifiko, zaɓi maƙallan roba mai zamewa; don matsakaita-wuya zuwa tsattsauran tsari inda ake buƙatar babban saurin hakowa da inganci, zaɓi abin birgima mai hatimin roba; kuma don matsanancin zafin jiki, rijiyoyin zurfin matsa lamba mai zurfi ko matakai na musamman kamar hako iska, juzu'in jujjuyawar iska wanda ba a rufe shi ne kawai zaɓi.

A matsayin "zuciya" na abin nadi, zaɓin zaɓi kai tsaye yana rinjayar farashi, inganci, da amincin ayyukan hakowa. It is hoped that this article will help you clarify the core differences among the three bearings, enabling you to choose the right "heart" for practical drilling projects and ensure efficient and reliable drilling every time.