{"id":11917,"date":"2026-07-07T07:11:30","date_gmt":"2026-07-07T07:11:30","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11917"},"modified":"2026-07-07T07:11:35","modified_gmt":"2026-07-07T07:11:35","slug":"overhead-crane-wire-rope-selection","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/sw\/posts\/overhead-crane-wire-rope-selection\/","title":{"rendered":"Uchaguzi wa Kamba ya Waya ya Kreni ya Juu: Mwongozo Kamili wa Ubunifu Salama wa Ngoma na Sheave"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Jedwali la Yaliyomo<\/p><nav><ul><li><a href=\"#1-scope\">1. Wigo<\/a><\/li><li><a href=\"#2-overhead-crane-wire-rope-minimum-safety-factor-zp\">2. Kamba ya Waya ya Crane ya Juu ya Kiwango cha Usalama cha Chini ya Zp<\/a><\/li><li><a href=\"#3-overhead-crane-wire-rope-selection\">3. Uteuzi wa Kamba ya Waya ya Crane ya Juu<\/a><ul><li><a href=\"#3-1-minimum-breaking-force\">3.1 Nguvu ya Chini ya Kuvunja<\/a><\/li><li><a href=\"#3-2-maximum-fleet-angle\">3.2 Pembe ya Juu ya Meli<\/a><\/li><li><a href=\"#3-3-maximum-service-temperature-for-wire-rope\">3.3 Kiwango cha Juu cha Halijoto ya Huduma kwa Kamba ya Waya<\/a><\/li><\/ul><\/li><li><a href=\"#4-overhead-crane-drum-and-sheave-selection\">4. Uteuzi wa Ngoma ya Korongo na Sheave ya Juu<\/a><ul><li><a href=\"#4-1-drum-type-and-winding-direction\">4.1 Aina ya Ngoma na Mwelekeo wa Kuzungusha<\/a><\/li><li><a href=\"#4-2-groove-radius-and-sheave-material\">4.2 Kipenyo cha Mtaro na Nyenzo ya Kukata<\/a><\/li><li><a href=\"#4-3-minimum-drum-and-sheave-diameter\">4.3 Kipenyo cha Chini cha Ngoma na Kipenyo cha Kukata<\/a><\/li><\/ul><\/li><li><a href=\"#5-special-operating-conditions\">5. Masharti Maalum ya Uendeshaji<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Kamba ya waya, <a href=\"https:\/\/www.kscranegroup.com\/sw\/crane-parts\/wire-drum.html\/\">ngoma<\/a>, na miganda ni vipengele vya msingi vya kreni yoyote ya juu au utaratibu wa kuinua kiinua. Unapobainisha vipengele hivi, ni kipengele gani cha chini cha usalama unachopaswa kutumia? Unakokotoaje nguvu ya chini ya kuvunja inayohitajika? Ngoma na miganda yako inapaswa kuwa na kipenyo gani?<\/p>\n\n\n\n<p>Uteuzi wa Kamba ya Waya ya Kreni ya Juu umeelezewa kwa kutumia GB\/T 34529-2017 (ISO 16625). Jifunze jinsi ya kuhesabu nguvu ya chini kabisa ya kuvunja, chagua kipengele sahihi cha usalama wa kamba ya waya, amua kipenyo cha ngoma na koleo, dhibiti pembe za meli, chagua vipimo vya mtaro, na uboreshe utendaji wa kamba ya waya kwa matumizi ya kreni ya juu na kiinua.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1928\" height=\"816\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Overhead-crane-european-style-lifting-mechanism.png\" alt=\"\" class=\"wp-image-11907\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Overhead-crane-european-style-lifting-mechanism.png 1928w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Overhead-crane-european-style-lifting-mechanism-1536x650.png 1536w\" sizes=\"(max-width: 1928px) 100vw, 1928px\" \/><figcaption class=\"wp-element-caption\"><em>Mchoro 1 Utaratibu wa kuinua wa mtindo wa Ulaya<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-scope\">1. Wigo<\/h2>\n\n\n\n<p>Kiwango hiki kinatumika kwa aina zifuatazo za kreni na kiinua (nyingi zimefafanuliwa katika ISO 4306-1, sambamba na GB\/T 6974.1-2008):<\/p>\n\n\n\n<ul>\n<li>Kreni za daraja (kreni za juu)<\/li>\n\n\n\n<li>Viungio vya kamba ya waya<\/li>\n\n\n\n<li>Kreni za mlango au nusu mlango<\/li>\n\n\n\n<li>Kreni za Gantry au nusu gantry<\/li>\n\n\n\n<li>Kreni za kebo na kreni za kebo za lango (utaratibu wa kuinua na utaratibu wa kusafiri kwa troli pekee)<\/li>\n\n\n\n<li>Kreni zinazohamishika<\/li>\n\n\n\n<li>Kreni za mnara<\/li>\n\n\n\n<li>Kreni za reli<\/li>\n\n\n\n<li>Kreni zinazoelea<\/li>\n\n\n\n<li>Kreni za staha<\/li>\n\n\n\n<li>Kreni za Derrick na kreni za Derrick za aina ya kebo<\/li>\n\n\n\n<li>Kreni za derrick zenye mshiko mgumu<\/li>\n\n\n\n<li>Kreni za jib (nguzo, boom, ukuta, au aina ya baiskeli)<\/li>\n\n\n\n<li>Kreni za kawaida za pwani<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-overhead-crane-wire-rope-minimum-safety-factor-zp\">2. Kamba ya Waya ya Crane ya Juu ya Kiwango cha Usalama cha Chini ya Zp<\/h2>\n\n\n\n<p>Kigezo cha chini kabisa cha usalama kwa kamba ya waya ya kreni ya juu hutegemea wajibu wa kazi ya utaratibu, matumizi ya kamba, mpangilio wa kurudisha nyuma, na aina ya kamba.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1832\" height=\"859\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Table-1-Minimum-safety-factors-for-overhead-cranes-and-hoists-Source-GBT-34529-2017.png\" alt=\"\" class=\"wp-image-11908\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Table-1-Minimum-safety-factors-for-overhead-cranes-and-hoists-Source-GBT-34529-2017.png 1832w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Table-1-Minimum-safety-factors-for-overhead-cranes-and-hoists-Source-GBT-34529-2017-1536x720.png 1536w\" sizes=\"(max-width: 1832px) 100vw, 1832px\" \/><figcaption class=\"wp-element-caption\"><em>Jedwali 1. Vigezo vya chini vya usalama kwa kreni (bila kujumuisha kreni zinazohamishika) na vipandishi (Chanzo: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Vipengee 1\u20135 vimetoka GB\/T 3811-2008 Jedwali 44; vipengee 6\u20139 vimetoka GB\/T 34529-2017 na GB\/T 8706-2017.<\/p>\n\n\n\n<p><strong>Maelezo muhimu ya ziada:<\/strong><\/p>\n\n\n\n<ol>\n<li>Kwa kamba za waya zinazoshughulikia mizigo hatari, chagua kipengele cha usalama kutoka kwenye meza iliyopo <strong>kiwango kimoja cha kazi cha juu zaidi<\/strong> kuliko uainishaji wa muundo.<\/li>\n\n\n\n<li>Kwa kreni za metali na kreni za vyombo vya bandari zenye majukumu ya kazi ya mitambo M7 au M8, <strong>uainishaji wa wajibu wa kazi ulio chini kidogo<\/strong> inaweza kutumika kwa ajili ya uteuzi wa kamba ya waya, mradi tu uchakavu wa kamba unaweza kufuatiliwa wakati wa huduma ili kuhakikisha matumizi salama na uingizwaji kwa wakati unaofaa.<\/li>\n\n\n\n<li><strong>Kreni za metali<\/strong>: kiwango cha chini cha usalama hakitakuwa chini ya <strong>7.1<\/strong>.<\/li>\n\n\n\n<li><strong>Kreni za vyombo vya bandari<\/strong>: kiwango cha chini cha usalama kwa kamba kuu za kuinua na kamba za kuvuta toroli hakitakuwa chini ya <strong>6<\/strong>.<\/li>\n\n\n\n<li>Kamba za waya kwa ajili ya booms za darubini zinapaswa kuwa na kipengele cha usalama cha angalau 4.<\/li>\n\n\n\n<li><strong>Kamba ya kawaida ya waya<\/strong> \u2014 Neno la pamoja la &quot;kamba ya safu moja&quot; na &quot;kamba iliyofungwa sambamba&quot;, ambayo pia hujulikana kama &quot;kamba isiyozuilika&quot;.<\/li>\n\n\n\n<li><strong>Kamba ya waya inayostahimili mzunguko<\/strong> \u2014 Kamba yenye nyuzi nyingi ambayo hutoa torque au mzunguko mdogo inapounga mkono mzigo. Kamba zinazostahimili mzunguko kwa ujumla huwa na angalau tabaka mbili za nyuzi zilizowekwa kwa mhimili kuzunguka kiini cha nyuzi ya chuma au kiini cha nyuzi, huku nyuzi za nje zikiwa zimepangwa kinyume na nyuzi za ndani zilizo karibu.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1337\" height=\"400\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/3Figure-2-Rotation-resistant-overhead-crane-wire-rope-selection-example.png\" alt=\"\" class=\"wp-image-11943\"\/><figcaption class=\"wp-element-caption\"><em>Mchoro 2 Mfano wa kamba ya waya inayostahimili mzunguko (Chanzo: GB\/T 8706-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<ol>\n<li><strong>Kamba ya kamba yenye safu moja<\/strong> \u2014 Kamba yenye nyuzi nyingi inayojumuisha safu moja ya nyuzi zilizowekwa kwa mkunjo kuzunguka kiini.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1337\" height=\"388\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Figure-3-Single-layer-multi-strand-rope-example.png\" alt=\"\" class=\"wp-image-11910\"\/><figcaption class=\"wp-element-caption\"><em>Mchoro 3 Mfano wa kamba yenye nyuzi nyingi yenye safu moja (Chanzo: GB\/T 8706-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<ol>\n<li><strong>Kamba iliyofungwa sambamba<\/strong> \u2014 Kamba yenye nyuzi nyingi inayojumuisha tabaka mbili au zaidi za nyuzi zilizowekwa katika operesheni moja kuzunguka kiini cha nyuzi au kiini cha nyuzi.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1337\" height=\"350\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Figure-4-Parallel-closed-rope-example.png\" alt=\"\" class=\"wp-image-11911\"\/><figcaption class=\"wp-element-caption\"><em>Mchoro 4 Mfano wa kamba iliyofungwa sambamba (Chanzo: GB\/T 8706-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1766\" height=\"891\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-2-Minimum-safety-factors-for-mobile-overhead-cranes.png\" alt=\"\" class=\"wp-image-11912\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-2-Minimum-safety-factors-for-mobile-overhead-cranes.png 1766w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-2-Minimum-safety-factors-for-mobile-overhead-cranes-1536x775.png 1536w\" sizes=\"(max-width: 1766px) 100vw, 1766px\" \/><figcaption class=\"wp-element-caption\"><em>Jedwali 2. Vigezo vya chini vya usalama kwa kreni zinazohamishika (Chanzo: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Kreni zinazohamishika ni pamoja na kreni za malori, kreni za aina ya gurudumu, kreni za kutambaa, kreni za ardhi yote, na kreni zilizowekwa kwenye malori (GB\/T 20776-2023).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1393\" height=\"1129\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7able-3-Minimum-safety-factors-for-static-ropes-and-erection-ropes.png\" alt=\"\" class=\"wp-image-11913\"\/><figcaption class=\"wp-element-caption\"><em>Jedwali 3. Vigezo vya chini vya usalama kwa kamba tuli na kamba za kusimamisha (Chanzo: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-overhead-crane-wire-rope-selection\">3. Uteuzi wa Kamba ya Waya ya Crane ya Juu<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-1-minimum-breaking-force\">3.1 Nguvu ya Chini ya Kuvunja<\/h3>\n\n\n\n<p>Fmin \u2265 S \u00d7 Zp<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Alama<\/th><th>Maana<\/th><\/tr><\/thead><tbody><tr><td>Fmin<\/td><td>Nguvu ya chini kabisa ya kuvunja<\/td><\/tr><tr><td>S<\/td><td>Mvutano wa juu zaidi wa kamba<\/td><\/tr><tr><td>Zp<\/td><td>Kigezo cha chini kabisa cha usalama (tazama Majedwali 1, 2, 3)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Ushughulikiaji maalum kwa kreni za kunyakua ndoo:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Hali<\/th><th>Kamba ya kufunga S_cl<\/th><th>Kushikilia kamba S<\/th><\/tr><\/thead><tbody><tr><td>Pakia imesawazishwa kiotomatiki<\/td><td>Uzito wa kunyakua uliopakiwa \u00d7 66% \u00f7 kamba ya kufunga huanguka<\/td><td>Uzito wa kunyakua uliopakiwa \u00d7 66% \u00f7 kamba ya kushikilia inaanguka<\/td><\/tr><tr><td>Mzigo haujasawazishwa kiotomatiki<\/td><td>Uzito wa kunyakua uliopakiwa \u00f7 kamba ya kufunga huanguka<\/td><td>Uzito wa kunyakua uliopakiwa \u00d7 66% \u00f7 kamba ya kushikilia inaanguka<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-2-maximum-fleet-angle\">3.2 Pembe ya Juu ya Meli<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Hali<\/th><th>Kikomo cha pembe ya meli<\/th><th>Marejeleo<\/th><\/tr><\/thead><tbody><tr><td>Kamba inayostahimili mzunguko<\/td><td>\u2264 <strong>2\u00b0<\/strong><\/td><td>GB\/T 34529-2017, Kifungu B.4<\/td><\/tr><tr><td>Kamba ya kawaida ya waya<\/td><td>\u2264 <strong>4\u00b0<\/strong><\/td><td>GB\/T 34529-2017, Kifungu B.4<\/td><\/tr><tr><td>Kamba inayoingia\/kutoka kwenye mfereji wa sheave<\/td><td>< <strong>5\u00b0<\/strong><\/td><td>GB\/T 27546-2011, Kifungu cha 5.7.2; GB\/T 3811-2008, Kifungu cha 6.3.3.3.1<\/td><\/tr><tr><td>Kamba inayoingia\/kutoka kwenye ngoma yenye miiba<\/td><td>\u2264 <strong>3.5\u00b0<\/strong><\/td><td>JB\/T 9006-2013, Kifungu cha 4.7.2; GB\/T 3811-2008, Kifungu cha 6.3.3.3.2<\/td><\/tr><tr><td>Ngoma ya kawaida, yenye tabaka nyingi, kifaa kisicho na vizuizi<\/td><td>\u2264 <strong>1.7\u00b0<\/strong><\/td><td>JB\/T 9006-2013, Kifungu cha 4.7.3; GB\/T 3811-2008, Kifungu cha 6.3.3.3.3<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Kwa uzio wa ngoma zenye tabaka nyingi, kamba za waya zenye viini vya chuma zinapendekezwa.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1512\" height=\"1040\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Fleet-angle-and-helix-angle.png\" alt=\"\" class=\"wp-image-11914\"\/><figcaption class=\"wp-element-caption\"><em>Mchoro 5 Pembe ya meli na pembe ya heliksi<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Alama<\/th><th>Maana<\/th><th>Kikomo<\/th><\/tr><\/thead><tbody><tr><td>\u03b1<\/td><td>Pembe ya heliksi ya ngoma<\/td><td>-<\/td><\/tr><tr><td>\u03b2<em>kushoto + \u03b1, \u03b2<\/em>kulia \u2212 \u03b1<\/td><td>Pembe ya meli ikilinganishwa na mstari wa katikati wa mfereji wa ngoma<\/td><td>\u2264 3.5\u00b0 (kawaida imeundwa hadi kiwango cha juu zaidi cha 3.5\u00b0)<\/td><\/tr><tr><td>\u03b2<em>kushoto, \u03b2<\/em>kulia<\/td><td>Pembe ya meli inayoingia\/kutoka<\/td><td>&lt; 5\u00b0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Hatua za kupunguza pembe ya meli:<\/strong><\/p>\n\n\n\n<ul>\n<li>Ongeza kipenyo cha ngoma ili kupunguza safu ya kuzungusha<\/li>\n\n\n\n<li>Ongeza umbali kati ya sheave na ngoma<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-3-maximum-service-temperature-for-wire-rope\">3.3 Kiwango cha Juu cha Halijoto ya Huduma kwa Kamba ya Waya<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Aina ya msingi<\/th><th>Kiwango cha juu cha joto<\/th><th>Vidokezo<\/th><\/tr><\/thead><tbody><tr><td>Kiini cha nyuzinyuzi (FC)<\/td><td><strong>100\u00b0C<\/strong><\/td><td>-<\/td><\/tr><tr><td>Kiini cha chuma (IWRC) \/ kamba ya kamba moja \/ kamba ya koili iliyofungwa<\/td><td><strong>200\u00b0C<\/strong><\/td><td>Kuanzia 100\u00b0C hadi 200\u00b0C, hasara ya nguvu ya 10% inaweza kudhaniwa; mafuta maalum yanahitajika zaidi ya 100\u00b0C.<\/td><\/tr><tr><td>Halijoto ya mazingira <strong>\u221240\u00b0C<\/strong><\/td><td>Nguvu haiathiriwi<\/td><td>Hakuna haja ya kupunguza mzigo wa kufanya kazi, lakini utendaji wa kamba unaweza kutegemea ufanisi wa vilainishi vya joto la chini<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Ikiwa mazingira ya uendeshaji yanazuia ulainishaji wa kamba ya waya, mashauriano kati ya muuzaji na mnunuzi yanapendekezwa, ikiwa ni pamoja na mahitaji ya masafa ya ukaguzi.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-overhead-crane-drum-and-sheave-selection\">4. Uteuzi wa Ngoma ya Korongo na Sheave ya Juu<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-1-drum-type-and-winding-direction\">4.1 Aina ya Ngoma na Mwelekeo wa Kuzungusha<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Ulinganisho<\/th><th>Ngoma ya kawaida<\/th><th>Ngoma yenye mikunjo<\/th><\/tr><\/thead><tbody><tr><td>Mapendekezo<\/td><td>Inakubalika<\/td><td><strong>Inapendelewa<\/strong> (kuzungusha kwa safu moja)<\/td><\/tr><tr><td>Upepo wa tabaka nyingi<\/td><td>Urefu wa flange juu ya kamba ya nje \u2265 0.5d<\/td><td>Sawa na kushoto<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Sheria za mwelekeo wa kuzungusha:<\/strong><\/p>\n\n\n\n<ul>\n<li>Ngoma ya kawaida \u2192 Mwelekeo wa kuzungusha hutegemea mwelekeo wa kamba; amua sehemu ya kufunga kamba kwa kila Jedwali 4.<\/li>\n\n\n\n<li>Ngoma yenye mikunjo \u2192 Mwelekeo wowote wa kuweka kamba unaweza kutumika, lakini <strong>ngoma ya kawaida ndiyo inayopendelewa zaidi<\/strong>: mfereji wa helikopta wa mkono wa kushoto unalingana na kamba ya kuwekea ya mkono wa kulia, mfereji wa helikopta wa mkono wa kulia unalingana na kamba ya kuwekea ya mkono wa kushoto.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1383\" height=\"1137\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Table-4-Correct-method-for-determining-the-rope-fixing-point-on-a-drum.png\" alt=\"\" class=\"wp-image-11915\"\/><figcaption class=\"wp-element-caption\"><em>Jedwali 4 Njia sahihi ya kubaini sehemu ya kufunga kamba kwenye ngoma (Chanzo: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-2-groove-radius-and-sheave-material\">4.2 Kipenyo cha Mtaro na Nyenzo ya Kukata<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Kigezo<\/th><th>Thamani iliyopendekezwa<\/th><\/tr><\/thead><tbody><tr><td>Radi ya mtaro<\/td><td>0.525d\u20130.550d, <strong>bora zaidi 0.5375d<\/strong><\/td><\/tr><tr><td>Pembe iliyojumuishwa ya Sheave<\/td><td>45\u00b0\u201360\u00b0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Miongozo ya uteuzi wa nyenzo za kusaga:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Aina ya vilima<\/th><th>Nyenzo iliyopendekezwa<\/th><th>Sababu<\/th><\/tr><\/thead><tbody><tr><td>Tabaka nyingi<\/td><td>Miganda ya polima au mifereji yenye polima inakubalika<\/td><td>Uharibifu mkubwa zaidi wa kamba hutokea katika maeneo ya kuvuka kwenye ngoma<\/td><\/tr><tr><td>Safu moja<\/td><td>Miganda ya polima <strong>haipendekezwi<\/strong><\/td><td>Uharibifu husababishwa hasa na uchovu; uchovu wa ndani wa kamba ni vigumu kugundua kwa kutumia miganda ya polima<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Kwa huduma ya mara kwa mara: tumia <strong>miganda ya chuma<\/strong> ili kuongeza uwezekano wa uchakavu wa nje \u2014 uchakavu huu hurahisisha ukaguzi wa kamba. Ikiwa miganda ya polima inatumika, inashauriwa kujumuisha angalau <strong>mganda mmoja wa chuma<\/strong> katika mpangilio wa kupigia kelele, kwa kawaida ile iliyo karibu zaidi na ngoma.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-3-minimum-drum-and-sheave-diameter\">4.3 Kipenyo cha Chini cha Ngoma na Kipenyo cha Kukata<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1105\" height=\"1423\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/10Table-5-Overhead-Crane-Drum-and-sheave-selection-coefficients-and-minimum-diameter-calculation-.png\" alt=\"\" class=\"wp-image-11916\"\/><figcaption class=\"wp-element-caption\"><em>Jedwali 5 Vigezo vya uteuzi wa ngoma na sheave na hesabu ya kipenyo cha chini kabisa (Chanzo: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-special-operating-conditions\">5. Masharti Maalum ya Uendeshaji<\/h2>\n\n\n\n<p>Kwa utunzaji wa chuma kilichoyeyushwa, mazingira magumu sana na\/au yenye babuzi, na hali maalum zinazofanana:<\/p>\n\n\n\n<ol>\n<li>Ushuru wa kazi wa utaratibu hautakuwa chini ya M5<\/li>\n\n\n\n<li>Thamani ya Zp itaongezwa kwa 25%, hadi kiwango cha juu cha 9.0<\/li>\n<\/ol>\n\n\n\n<p>Hati asilia pia inashughulikia matumizi ya viunganishi vya kuzungusha na kuzungusha, sababu za kuharibika kwa kamba ya waya, kurefusha na kuchagua kamba, na uteuzi wa kumalizia kamba. Rejelea kiwango asilia kwa utafiti zaidi.<\/p>\n\n\n\n<p><strong>Viwango vya marejeleo<strong>(<a href=\"https:\/\/openstd.samr.gov.cn\/bzgk\/std\/std_list?p.p1=0&amp;p.p90=circulation_date&amp;p.p91=desc&amp;p.p2=%E8%B5%B7%E9%87%8D%E6%9C%BA\" target=\"_blank\" rel=\"noopener\">Hoja ya Viwango vya Korongo vya Kichina<\/a>)<\/strong>:<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 34529-2017 Kreni na vipandishi \u2014 Uchaguzi wa kamba za waya, ngoma na miganda (IDT ISO 16625:2013)<\/li>\n\n\n\n<li>Kamba za waya za chuma GB\/T 20118-2017 kwa madhumuni ya jumla (NEQ ISO 2408:2017)<\/li>\n\n\n\n<li>GB\/T 20863.1-2021 Kreni \u2014 Uainishaji \u2014 Sehemu ya 1: Jumla (IDT ISO 4301-1:2016)<\/li>\n\n\n\n<li>GB\/T 6974.1-2008 Kreni \u2014 Msamiati \u2014 Sehemu ya 1: Jumla (IDT ISO 4306-1:2007)<\/li>\n\n\n\n<li>GB\/T 5972-2023 Kreni \u2014 Kamba za waya \u2014 Utunzaji na matengenezo, ukaguzi na utupaji (IDT ISO 4309:2017)<\/li>\n\n\n\n<li>GB\/T 8706-2017 Kamba za waya za chuma \u2014 Msamiati, uteuzi na uainishaji (MOD ISO 17893:2004)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"Wire rope, drums, and sheaves are the core components of any overhead crane or hoist lifting mechanism. When specifying these components, what minimum safety factor should you use? How do you calculat","protected":false},"featured_media":11527,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[826,801,825,822,823,121,829,828,818,827,824],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/xmxposts\/11917"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":3,"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/xmxposts\/11917\/revisions"}],"predecessor-version":[{"id":11944,"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/xmxposts\/11917\/revisions\/11944"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/media\/11527"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/media?parent=11917"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/posts_category?post=11917"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/sw\/wp-json\/wp\/v2\/posts_tag?post=11917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}