Types of eri ji na n'ibu

N'ilu ọlu bụ florid helix na a mgbe nile na pitch na-ewekarị na conical ma ọ bụ cylindrical n'elu. Ọ bụ isi mmewere ejikọta abụọ iche iche nke fasteners, nakwa dị ka a ịghasa na toothed helical gia. Basic parameters eri na oge a na fasteners kọwaa GOST 11708-82: a na eri pitch n'etiti n'akụkụ convolutions, ná mpụta na n'ime diameters nke fastener mmewere, vertex n'akuku nke na eri.

Types of eri na fasteners na-ekewa n'ime:

• anụ ụlọ - na-etinyere na nut, uwe arịlịka, couplings, anwụrụ;
• mpụga - na-enịm na kposara, kposara, kposara, bolts, studs.

Ndị na-esonụ ụdị nke eri na kwekọrọ ekwekọ ọbịa:

• Metric - profaịlụ n'ụdị ihe equilateral triangle (mgbe ụfọdụ na obere, ọkara na nnukwu nzọụkwụ);
• inch - zita ma ọ bụ trapezoidal udi;
• Metric conical - nwere a zita profaịlụ;
• gburugburu - vertex ntule okirikiri udi;
• trapezoidal - n'elu trapezoidal protrusion;
• Eguzogide ọgwụ - asymmetrical trapezoidal profaịlụ;
• Modular - trapezoidal profaịlụ;
• conical tube na cylindrical (nwere ụdị ihe isosceles triangle na ahazi inch size (ma ọ bụ ploskosrezannoy) ọnụ ọnụ na anētiye eriri igwe);
• conical inch - ploskosrezannoy profaịlụ na onu ire nke zita udi.

E nwere ndị ka ụfọdụ ụdị nke eri, dị ka a square na akụkụ anọ. Ha na-etinyere fasteners lathes n'ihi na onye drawings. Ndị a na ụdị eri adịghị inye a elu ogo ziri ezi, ya mere, na-adịkarịghị eji. Na ha anaghị adị ọbịa.

Ka ụbọchị, maka engineering ngwa isi elu na ime eri metric a na-ewere. Na nghọta, ọ na-denoted site a isi obodo leta "M" na-egosi na elu dayameta na millimeters. Pipe eri ụdị na-eji jikọọ dị iche iche ọkpọkọ. Ha elu ọnụ n'obosara bụ esịtidem dayameta nke ọjà, na mpụga nke nke na-threaded. Na nghọta, ọ na-denoted site a isi obodo akwụkwọ ozi «G» na-egosi na n'ime dayameta nke anwụrụ na sentimita asatọ.

The isi eri nha niile ụdị bụ akwụkwọ data. Ha nwere ike dị na bụla obere akwukwo ụgbọ. akwụkwọ data maka metric eri kọwara n'ụzọ zuru ezu dị ka GOST 9150-81, 8724-81, na 24705-81. Pipe cylindrical eri nha na-kpọmkwem ke GOST 6357-81.

Otu n'ime ndị nkịtị fasteners na metric eri bụ a kpọchie. Ọ bụ a metal mkpanaka na a isi na otu njedebe. Yana ogologo nke mkpanaka etinyere na helical uzo. Nzube bolts - njikọ nke akụkụ dị iche iche nke usoro na aghụghọ site akụ. The bolt isi bụ hegzagon ekara, na (na nzuzo, ọkara gburugburu, butt, Bs, ọnụ).

Ndị na-esonụ ụdị nke bolts dị ka bu n'obi:

• Ngwá ụlọ - na-eji jikọọ na ngwaahịa na ngwá ụlọ rụpụta;
• engineering - eji na azụmahịa oru;
• mma ogè - mere maka ekere òkè ígwè na-akọ ugbo oru;
• okporo ụzọ - eji onyinye dị iche iche na metal na guardrails.