I. Elektrodvigatel tanlash va yuritmaning kinematik xisobi

6) G’ildiraklarni botuvchi diametri formulasi
d₁=z₁* =96.4
d₂=z₂* =122* =309.7
a_w= = =203

Tishli g’ildiraklarning aylana tezligi;

v:= v:=31 v:=1,5 da
Aniqlik darajasini 9 deb qabulqilamiz.

7.Tishga ta’sir etuvchi kuchlar .
Aylana kuch formulasi:
2
Radial kuch:
tg 0.3640, ,
6.Yuklanishkoeffitsiyenti.
:=
yuklamaning tishlararo taqsimlanishini xisobga oluvchi koeffitsiyent,
tishli g’ildirak gardishi bo’yicha yuklamaning notekis taqsimlanishini xisoga oluvchi koeffitsiyent,
dinamik koeffitsiyent,deb qabul qilamiz GOST 1643-81 bo’yicha (32-b)

7.Kontaktkuchlanishniquydagi formula bo’yichatekshiramiz.


83,87<427 MPa

9.Tishlarniegilishdagikuchlanishbo’yichamusahkmlikkatekshiramiz.


yuklanish koeffitsiyenti. tish uzunligi bo’yicha yuklamaning notekis taqsimlanishini xisobga oluvchi koeffitsiyent , 1.25 -yuklamaning dinamik ta’sirini xisobga oluvchi koeffitsiyenti, GOST 21354-75 va 3.7-3.8-jadvaldan olingan.
-tish shaklini xisobga oluvchi koeffitsiyent,
Shesternyaniki,
35

Tishlig’ildirakniki,

Deb GOST 21354-75 (42-bet) dantanlabolamiz.
Ruxsatetilgankuchlanish,
( ):= ( :=1.75xavfsizlikkoeffitsiyenti,

sikllarning asosiy soniga mos keluvchi mustahkamlik chegarasi,
Shesternyauchun
,
Tishlig’ildirakuchun,

Shundaruxsatetilgankuchlanishquydagicha;
Shesternyauchun,
( ):= 236.571 MPa
Tishlig’ildirakuchun,
( ( ):=205.714 MPa
Quydagimunosabatni( ) ya’nishesternyavatishlig’ildirakuchunruxsatetilgankuchlanishniulartishlariningshakliganisbatinixisoblaymiz:
Shesternyauchun,
( )=61,44MPa,
Tishlig’ildirakuchun,
( )=57.14 MPa,
Tishlig’ildiraktishiningmustaxkamliginitekshiramiz:
(
:= ( )=60,11MPa
( ) mustahkamlikshartibajarilmoqda.