V\u0101rpstu m\u0113r\u0137is un klasifik\u0101cija
\nGalven\u0101 v\u0101rpstu funkcija: rot\u0113jo\u0161o deta\u013cu balsts, kust\u012bbas un jaudas p\u0101rnese.
\nKlasifik\u0101cija p\u0113c nestsp\u0113jas:
\n- Rot\u0113jo\u0161\u0101 v\u0101rpsta: iztur gan lieces momentu, gan griezes momentu darb\u012bbas laik\u0101.
\n- V\u0101rpsta: gult\u0146a tikai lieces moments
\n- P\u0101rnesumk\u0101rbas v\u0101rpsta: gult\u0146a tikai griezes moments, nevis lieces moments (vai \u013coti mazs lieces moments).
\nKlasifik\u0101cija p\u0113c ass formas:
\n- Klo\u0137v\u0101rpsta: klo\u0137v\u0101rpstas savienot\u0101jv\u0101rpsta var realiz\u0113t rot\u0101cijas kust\u012bbas un atgriezenisk\u0101s kust\u012bbas savstarp\u0113ju p\u0101rveido\u0161anu.
\n- Taisna v\u0101rpsta
\n- Optisk\u0101 v\u0101rpsta: vienk\u0101r\u0161a forma, viegla apstr\u0101de, maz spriedzes koncentr\u0101cijas avotu; parasti izmanto v\u0101rpst\u0101m un transmisijas v\u0101rpst\u0101m.
\n- Pak\u0101pienu v\u0101rpsta: viegli mont\u0113jama un uz t\u0101s novietojama; parasti tiek izmantota rot\u0113jo\u0161\u0101m v\u0101rpst\u0101m.
\nKlasifik\u0101cija p\u0113c t\u0101, vai tas ir ciets:
\n- Ciet\u0101 v\u0101rpsta: visp\u0101r\u012bgi
\n- Doba v\u0101rpsta: samazina v\u0101rpstas masu; \u012bpa\u0161\u0101m pras\u012bb\u0101m v\u0101rpst\u0101 uzst\u0101d\u012bt citas deta\u013cas; gad\u012bjumi ar \u012bpa\u0161i svar\u012bg\u0101m funkcij\u0101m; iek\u0161\u0113j\u0101 un \u0101r\u0113j\u0101 diametra attiec\u012bba parasti ir 0,5 ~ 0,6.
\n- Stiep\u013cu lokan\u0101 v\u0101rpsta (stiep\u013cu lokan\u0101 v\u0101rpsta): tai ir laba elast\u012bba, un t\u0101 var elast\u012bgi p\u0101rnest rot\u0101cijas kust\u012bbu uz sl\u0113gtu telpu.
\nGalvenais v\u0101rpstas konstrukcijas saturs
\nStruktur\u0101l\u0101 projekt\u0113\u0161ana
\nStruktur\u0101l\u0101 forma
\nIzm\u0113ri
\nDarba jaudas apr\u0113\u0137ins
\nSp\u0113ks: Vairum\u0101 gad\u012bjumu ir j\u0101veic tikai v\u0101rpstas stipr\u012bbas apr\u0113\u0137ins.
\nSt\u012bvums: Veicot st\u012bvuma apr\u0113\u0137inus v\u0101rpst\u0101m ar augst\u0101m stingr\u012bbas pras\u012bb\u0101m un tiev\u0101m v\u0101rpst\u0101m ar lieliem sp\u0113kiem, j\u0101veic stingr\u012bbas apr\u0113\u0137ins.
\nVibr\u0101cijas stabilit\u0101te: V\u0101rtiem, kas darbojas ar lieliem apgriezieniem, j\u0101veic vibr\u0101cijas stabilit\u0101tes apr\u0113\u0137ins.
\nV\u0101rpstas materi\u0101li
\nOglek\u013ca t\u0113rauds, le\u0123\u0113tais t\u0113rauds
\nVisbie\u017e\u0101k izmantotais 45 t\u0113rauds
\nLe\u0123\u0113t\u0101 t\u0113rauda izmanto\u0161anas scen\u0101riji: lielas jaudas p\u0101rnese, kam nepiecie\u0161ams samazin\u0101t izm\u0113rus un masu, uzlabot v\u0101rpstas nodilumiztur\u012bbu, k\u0101 ar\u012b v\u0101rpstas, kas darbojas augstas vai zemas temperat\u016bras apst\u0101k\u013cos.
\nNorm\u0101l\u0101 darba temperat\u016br\u0101 (zem 200 \u00b0C) da\u017e\u0101du oglek\u013ca t\u0113raudu un le\u0123\u0113to t\u0113raudu elast\u012bbas modulis ir l\u012bdz\u012bgs, t\u0101p\u0113c, izv\u0113loties t\u0113rauda veidu un nosakot t\u0113rauda termisk\u0101s apstr\u0101des metodi, pamat\u0101 ir iztur\u012bba un nodilumiztur\u012bba, nevis v\u0101rpstas lieces vai v\u0113rpes stingr\u012bba.<\/p>\n
Da\u017e\u0101das termisk\u0101s apstr\u0101des (piem\u0113ram, augstfrekvences r\u016bd\u012b\u0161ana, uzka\u013c\u0137o\u0161ana, nitr\u012bd\u0113\u0161ana, cianiz\u0113\u0161ana u. c.) un virsmas nostiprin\u0101\u0161anas apstr\u0101des (piem\u0113ram, lod\u0113\u0161ana, velm\u0113\u0161ana u. c.) b\u016btiski ietekm\u0113 v\u0101rpstas noguruma stipr\u012bbas uzlabo\u0161anu.<\/p>\n
V\u0101rpstas strukt\u016bras konstrukcija
\nV\u0101rpstas konstrukcijas dizains: sapr\u0101t\u012bga v\u0101rpstas forma + visi konstrukcijas izm\u0113ri
\nV\u0101rpstas strukt\u016bru ietekm\u0113jo\u0161ie faktori:<\/p>\n
1. V\u0101rpstas uzst\u0101d\u012b\u0161anas poz\u012bcija un forma ma\u0161\u012bn\u0101<\/p>\n
2. Uz v\u0101rpstas uzst\u0101d\u012bto deta\u013cu tips, izm\u0113rs, daudzums un savieno\u0161anas metode.<\/p>\n
3. Slodzes veids, lielums, virziens un sadal\u012bjums<\/p>\n
4. V\u0101rpstas apstr\u0101des tehnolo\u0123ija
\nPras\u012bbas v\u0101rpstas konstrukcijas projekt\u0113\u0161anai:<\/p>\n
- V\u0101rpstai un uz t\u0101s uzst\u0101d\u012btaj\u0101m da\u013c\u0101m j\u0101b\u016bt prec\u012bz\u0101 darba st\u0101vokl\u012b.<\/p>\n
- Uz v\u0101rpstas eso\u0161aj\u0101m da\u013c\u0101m j\u0101b\u016bt viegli uzst\u0101d\u0101m\u0101m, izjaucam\u0101m un regul\u0113jam\u0101m.<\/p>\n
- v\u0101rpstai j\u0101b\u016bt ar lab\u0101m ra\u017eo\u0161anas tehnolo\u0123iskaj\u0101m \u012bpa\u0161\u012bb\u0101m.<\/p>\n
Jaut\u0101jumi, kam j\u0101piev\u0113r\u0161 uzman\u012bba, pas\u016btot v\u0101rpstas
\nTransmisijas v\u0101rpsta ir meh\u0101nisk\u0101s transmisijas sist\u0113mas galven\u0101 sast\u0101vda\u013ca. Paties\u012bb\u0101 ir da\u017eas lietas, kas j\u0101noskaidro pirms ieg\u0101des. Pirm\u0101 ir specifik\u0101cijas, piem\u0113ram, pras\u012bbas attiec\u012bb\u0101 uz v\u0101rpstas diametru, garumu, materi\u0101lu, virsmas apstr\u0101di utt. Otrais ir materi\u0101ls. Bie\u017ei izmantotie materi\u0101li ir t\u0113rauds, alum\u012bnija sakaus\u0113jums, tit\u0101na sakaus\u0113jums utt. Izv\u0113lieties piem\u0113rotu materi\u0101lu atbilsto\u0161i vajadz\u012bb\u0101m un specifik\u0101cij\u0101m. V\u0113l viens ir inerces moments, kas ir fizik\u0101ls lielums, ar kuru m\u0113ra objekta sp\u0113ju saglab\u0101t s\u0101kotn\u0113jo rot\u0101cijas st\u0101vokli. Ieg\u0101d\u0101joties piedzi\u0146as v\u0101rpstu, j\u0101\u0146em v\u0113r\u0101, vai t\u0101s inerces moments atbilst j\u016bsu vajadz\u012bb\u0101m. Ja inerces moments ir p\u0101r\u0101k liels, tas var izrais\u012bt nestabilit\u0101ti iedarbin\u0101\u0161anas vai p\u0101rsl\u0113g\u0161anas laik\u0101 un pat vibr\u0101ciju un troksni. Turkl\u0101t ir ar\u012b precizit\u0101te un pielaide. Ja precizit\u0101te un pielaide ir p\u0101r\u0101k liela, var rasties t\u0101das probl\u0113mas k\u0101 vibr\u0101cija, troksnis un nodilums. T\u0101p\u0113c, ieg\u0101d\u0101joties piedzi\u0146as v\u0101rpstu, j\u0101piev\u0113r\u0161 uzman\u012bba tam, vai t\u0101s precizit\u0101te un pielaide atbilst j\u016bsu vajadz\u012bb\u0101m. Visbeidzot, ir jaut\u0101jums par cenu.<\/p>\n
<\/p>\n
1. Augstas kvalit\u0101tes oglek\u013ca konstrukcijas t\u0113raudi, piem\u0113ram, oglek\u013ca t\u0113rauds 35, 45 un 50, tiek pla\u0161i izmantoti to augsto visaptvero\u0161o meh\u0101nisko \u012bpa\u0161\u012bbu d\u0113\u013c, no kuriem 45 t\u0113rauds ir vispla\u0161\u0101k izmantotais. Lai uzlabotu t\u0101 meh\u0101nisk\u0101s \u012bpa\u0161\u012bbas, j\u0101veic normaliz\u0101cija vai r\u016bd\u012b\u0161anas un atlaidin\u0101\u0161anas apstr\u0101de. Mazsvar\u012bg\u0101m vai maz\u0101k saspringt\u0101m v\u0101rpst\u0101m var izmantot oglek\u013ca konstrukcijas t\u0113raudus, piem\u0113ram, Q235 un Q275.
\n2. Le\u0123\u0113tajam t\u0113raudam ir augstas meh\u0101nisk\u0101s \u012bpa\u0161\u012bbas, ta\u010du tas ir d\u0101rg\u0101ks un bie\u017ei tiek izmantots v\u0101rpst\u0101m ar \u012bpa\u0161\u0101m pras\u012bb\u0101m. Piem\u0113ram, \u0101trgaitas v\u0101rpst\u0101m, kur\u0101s izmanto sl\u012bdo\u0161os gult\u0146us, parasti izmanto zema oglek\u013ca satura le\u0123\u0113tos struktur\u0101los t\u0113raudus, piem\u0113ram, 20Cr un 20CrMnTi. P\u0113c uzka\u013c\u0137o\u0161anas un r\u016bd\u012b\u0161anas var uzlabot v\u0101rpstas kakli\u0146a nodilumiztur\u012bbu; ma\u0161\u012bnas rotora v\u0101rpstai j\u0101b\u016bt ar lab\u0101m augsttemperat\u016bras meh\u0101niskaj\u0101m \u012bpa\u0161\u012bb\u0101m, ja t\u0101 str\u0101d\u0101 augst\u0101 temperat\u016br\u0101, liel\u0101 \u0101trum\u0101 un lielas slodzes apst\u0101k\u013cos. Bie\u017ei izmanto t\u0101dus le\u0123\u0113tos konstrukcijas t\u0113raudus k\u0101 40CrNi un 38CrMoAlA. V\u0101rpstas sagataves priorit\u0101te ir kalumi, kam seko t\u0113rauds; liel\u0101kiem izm\u0113riem vai sare\u017e\u0123\u012bt\u0101k\u0101m konstrukcij\u0101m var apsv\u0113rt t\u0113rauda vai ka\u013cam\u0101 \u010duguna izmanto\u0161anu. Piem\u0113ram, izmantojot ka\u013camo \u010dugunu klo\u0137v\u0101rpstu un sadales v\u0101rpstu izgatavo\u0161anai, ir t\u0101das priek\u0161roc\u012bbas k\u0101 zemas izmaksas, laba vibr\u0101ciju absorbcija, zema jut\u012bba pret sprieguma koncentr\u0101ciju un laba iztur\u012bba. Meh\u0101niskais ass modelis ir sija, un liel\u0101kajai da\u013cai t\u0101s ir j\u0101rot\u0113, t\u0101p\u0113c t\u0101s spriegums parasti ir simetriski ciklisks. Iesp\u0113jamie boj\u0101jumu veidi ir noguruma l\u016bzums, p\u0101rslodzes l\u016bzums un p\u0101rm\u0113r\u012bga elast\u012bg\u0101 deform\u0101cija. Parasti uz v\u0101rpstas parasti j\u0101uzst\u0101da da\u017eas deta\u013cas ar rite\u0146iem, t\u0101p\u0113c liel\u0101k\u0101 da\u013ca v\u0101rpstu j\u0101izveido k\u0101 pak\u0101pienveida v\u0101rpstas ar lielu grie\u0161anas daudzumu.<\/p>","protected":false},"excerpt":{"rendered":"
V\u0101rpstas ir galvenais CHINA MACHINERY ENGINEERING WUXI CO., LTD. produkts, un tas ir galvenais produkts, ko pla\u0161i izmanto daudz\u0101s nozar\u0113s un pielietojuma scen\u0101rijos, piem\u0113ram, meh\u0101niskaj\u0101 transmisij\u0101, transportl\u012bdzek\u013cu ra\u017eo\u0161an\u0101 un r\u016bpnieciskaj\u0101s iek\u0101rt\u0101s. T\u0101s galvenok\u0101rt izmanto, lai sasniegtu daudzas praktiskas funkcijas, piem\u0113ram, augstas iztur\u012bbas transmisiju, prec\u012bzu saska\u0146o\u0161anu un ilgu kalpo\u0161anas laiku.<\/p>","protected":false},"featured_media":702,"template":"","adweb_product_categories":[78],"adweb_product_tags":[155,159,160,158,157,156,106],"gallery":[706,707,708,709,710,711,712,713,714,715,716,717,718,719,720,721,722,723,724,725,726,727,728,729,730,731,732,733,734,735],"order":"0","acf":[],"_links":{"self":[{"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/adweb_products\/701"}],"collection":[{"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/adweb_products"}],"about":[{"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/types\/products"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/media\/702"}],"wp:attachment":[{"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/media?parent=701"}],"wp:term":[{"taxonomy":"adweb_product_cat","embeddable":true,"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/adweb_product_categories?post=701"},{"taxonomy":"adweb_product_tag","embeddable":true,"href":"https:\/\/www.cmecsteel.com\/lv\/wp-json\/wp\/v2\/adweb_product_tags?post=701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}