2. Dastgox xaqida umumiy ma’lumot

Dastgoh xaqida umumiy ma’lumot.

257 Radial parmalash dastgohi.

• 
  A - asos;
  
• 
  Б - qattiq ustun;
  
• 
  B - aylanma ustunning siqish mexanizmi;
  
• 
  Г - ichi bo'sh aylanadigan ustun;
  
• 
  Д - shpalni ko'tarish, tushirish va qisish mexanizmi;
  
• 
  E - travers;
  
• 
  Ж - vites qutisi va besleme qutisi bilan shpindel bosh qismi;
  
• 
  3 - yon stol.
  

3. Asosiy kinematik parametrlarni aniqlash
257 – Radial parmalash dasgoxi asosida tezliklar qutisini loyixalash.
1. SHipindelning eng kichik aylanishlar soni – n_min=120 ayl/daq
2. SHipindelning eng katta aylanishlar soni – n_max=200 ayl/daq
3. Tezliklar soni va formulasi – Z=24=3х2х4
4. Eng kata ishlov berish o‘ lchamlari – D = 45 mm
5. Ishlov beriladigon material - Сталь 30 Ϭ_b =490 MPA
3.1 Dastgoh shpindelining n dan n_max gacha bo’lgan oraliqdagi aylanish chastotasi qatori hisoblanadi.
n_min=n₁;
n₂=n₁ ;
n₃=n₂ =n₁ =n₁ ²;
n₃=n₂ =n₁ =n₁ ²………………………….
n_max=n_z=n₁ ^z-1}
ketma ketlik bajarilishi kerak bo’lib u geometrik progressiyani tashkil qiladi.
Bu yerda geometrik progressiya maxraji bo’lib
ga teng.
Z=24=3*2*4 ekanligidan

Standardga yaqin qiymat =1.12 deb qabul qilamiz

Standart qiymat qabul qilamiz.
n`1 = 750 ayl/min
n_min= 120 ayl/min
n₂=120*1.12= 134 ayl/min
n₃= 134 *1.12= 150 ayl/min
n₄= 150 *1.12= 168 ayl/min
n₅= 168 *1.12= 188 ayl/min
n₆= 188 *1.12= 211 ayl/min
n₇= 211 * 1.12= 236 ayl/min
n₈= 236 *1.12 = 265 ayl/min
n₉= 265 *1.12= 297 ayl/min
n₁₀= 297 *1.12= 332 ayl/min
n₁₁= 332 *1.12= 372 ayl/min
n₁₂= 372 * 1.12= 417 ayl/min
n₁₃= 417 *1.12= 467 ayl/min
n₁₄= 467 *1.12= 523 ayl/min
n₁₅= 523 *1.12= 586 ayl/min
n₁₆= 586 *1.12= 656 ayl/min
n₁₇= 656 *1.12 = 735 ayl/min
n₁₈= 735 *1.12= 823 ayl/min
n₁₉= 823 * 1.12= 922 ayl/min
n₂₀= 922 *1.12= 1033 ayl/min
n₂₁= 1033 *1.12= 1157 ayl/min
n₂₂= 1157 *1.12= 1296 ayl/min
n₂₃= 1296 *1.12= 1452 ayl/min
n₂₄= 1452 *1.12= 1626 ayl/min

1- Hol uchun
II III I	X2=2 X3=4 X1=3 I – 1 II-X1-2 III-X1* X2-6

2 - Hol uchun
I II III	X1=2 X2=3 X3=4 I – 1 II-X1-3 III-X1* X2-6