Tasmali disklarning uch turi mavjud: tekis kamar, uchburchak kamar va sinxron tishli kamar. Har uch turdagi kamar milliy standartlarga ega. Biroq, uzatish nisbati va quvvatidagi katta o'zgarishlar tufayli, barcha tarkibni qamrab ololmaydigan to'liq mos keladigan milliy standart yoki milliy standart mavjud emas, lekin milliy standart tanlov doirasini, foydalanish shartlarini, dizayn usullarini va boshqa tarkibni belgilaydi.
For example, the national standard stipulates that there are seven types of V-belts: O, a, B, C, D, e and F, and the corresponding pulley groove angles are 34 °, 36 ° and 38 °. At the same time, it specifies the minimum diameter of the small pulley corresponding to each pulley groove angle of each type of V-belt, but the large pulley is not specified. The groove angle of the pulley is divided into 34 degrees, 36 degrees and 38 degrees. The specific selection shall be based on the groove type and reference diameter of the pulley; The groove angle of the belt pulley is related to the diameter of the belt pulley. The recommended groove angle degrees of the groove angle of different types of belt pulley in different diameter ranges are as follows: the O-type belt pulley is 34 degrees when the diameter range of the belt pulley is 50mm ~ 71mm; 36 degrees at 71mm ~ 90mm and 38 degrees at > 90mm; Type a pulley is 34 degrees when the pulley diameter ranges from 71mm to 100mm and 36 degrees when the pulley diameter ranges from 100mm to 125mm; > 38 ° at 125mm; B-type pulley is 34 degrees when the pulley diameter ranges from 125mm to 160mm; 36 degrees for 160mm ~ 200mm and 38 degrees for > 200mm; C-type pulley is 34 degrees when the pulley diameter ranges from 200mm to 250mm, 36 degrees when 250mm to 315mm, and 38 degrees when > 315mm; When the diameter range of D-type pulley is 355mm ~ 450mm, it is 36 degrees, and when the diameter range is > 450mm, it is 38 degrees; Type E is 36 degrees when it is 500mm ~ 630mm and 38 degrees when it is >630 mm.
V{0}}kamar modellariga quyidagilar kiradi: oddiy oa BCDE 3V 5V 8V, oddiy mustahkamlangan bolta BX CX DX ex 3vx 5vx 8vx, tor V-kamar SPZ spa SPB SPC, kuchli tor V{{8} }kamar XPA XPB XPC; Uchburchak kamarning har bir modeli uchburchak kamarning kesim hajmini belgilaydi. Uchburchak kamar turining kesim o'lchami: ustki kengligi 13 mm va qalinligi 8 mm; B-turi uchburchak kamarning kesim o‘lchami: ustki kengligi 17 mm va qalinligi 10,5 mm; C{15}}shaklidagi uchburchak kamarning kesim o‘lchami: ustki kengligi 22 mm va qalinligi 13,5 mm; D{19}}shaklli uchburchak kamarning kesim o‘lchami: ustki kengligi 21,5 mm va qalinligi 19 mm; E{23}}shaklidagi uchburchak kamarning kesim o‘lchami: ustki kengligi 38 mm, qalinligi esa 25,5 mm. Tegishli o'lchamlar (kenglik balandligi): O (10 6), a (12,5 9), B (16,5 11), C (22 14), D (21,5 19), e (38 25,5).
Kasnakning diametri va boshqa o'lchamlari pasayish nisbati bo'yicha mos keladi va ish tezligi va vosita tezligiga muvofiq ishlab chiqilgan. Ish tezligi / dvigatel tezligi {0}} gijgijlangan g'altakning diametri / haydash g'altakning diametri 0,98 (siljish koeffitsienti). Agar po'lat kasnak ishlatilsa, chiziqli tezlik 40 m / s dan oshmasligi kerak. agar quyma temir kasnak ishlatilsa, chiziqli tezlik 35 m / s dan oshmasligi kerak. Dvigatel tezligi va g'altakning diametri o'rtasidagi konvertatsiya nisbati, tezlik nisbati=chiqish tezligi: kirish tezligi=yuk shkivning qadam diametri: vosita kasnagi pitch diametri. Qadam diametri mos yozuvlar diametri bilan bir xil. Diametri - 2H=pitch diametri, h mos yozuvlar chizig'idagi truba chuqurligi va H V-kamarning turli modellari uchun farq qiladi. YZ a BCDE, mos yozuvlar chizig'idagi truba chuqurligi h=1.6 2,75 3,5 4,8 8,1 9,6. Kasnak qadamining diametri - bu g'ildirakning indekslash doirasi diametriga bir oz o'xshash bo'lgan g'altakning qadam chizig'ining nazariy diametri. U odatda PD bilan ifodalanadi va tashqi doira odatda OD bilan ifodalanadi. har xil truba turlari har xil. Umuman olganda, biz g'altakning tashqi doirasini osongina o'lchashimiz va SPZ:OD=PD plus 4 formulasi bo'yicha qadam doirasini hisoblashimiz mumkin; SPA:OD=PD plus 5,5; SPB:OD=PD plus 7; SPC:OD=PD plus 9.6. A yoki spa kasnagining minimal tashqi diametri 80 mm. Agar bu o'lchamdan kamroq bo'lsa, ayniqsa yuqori tezlikda, kamar pastki qismida delaminatsiyaga va yoriqlarga moyil bo'ladi. SPZ kamari, 63 mm dan kam bo'lmagan kichik g'ildirak. Shu bilan birga, kamarning o'rnatish usuli va kuchlanishiga e'tibor bering. Agar u juda kichik bo'lsa, sirpanish oson, agar u juda katta bo'lsa, kamar va podshipnikga zarar etkazish oson.
Bundan tashqari, milliy standartga o'xshash standart ISO 1081-1995 kamar qo'zg'aysan, uchburchak kamar, uchburchak Ribbed kamar va yivli kasnakni tanlash va loyihalash xususiyatlarini belgilaydi. Kasnaklarning besh turi mavjud: SPZ, spa, SPB, SPC va SPD.
