Chenjezo Lofunika: Ili ndi zolemba zakale zakale, osati mawerengedwe amakono a makina, kuwunika zoopsa kapena buku lakagwiritsidwe ntchito. Kuchuluka kwa kusintha, sitiroko, kusamuka, mphamvu, ma coefficients ndi ma tabular amayenera kufufuzidwa molingana ndi malamulo ovomerezeka, zolemba za wopanga komanso momwe angapangire.
Mawu awa si makina kapena zolemba zantchito za Savo Kusić. Zomwe zilipo pano zikuyang’ana mazenera, zitseko ndi mayankho ogwirizana nawo.
Chiwerengero cha kusintha ndi kukula kwa sitiroko
Kuchuluka kwa kusintha kwa shaft kumatsimikizira kuchuluka kwa chipata. Kukwera kwa chiwerengero cha zosinthika, kumapangitsa kuti zokololazo zikhale zofanana ndi sitiroko ya gate. Komabe, popanda kuwerengera kusanachitike, kuchuluka kwa kusinthika kwa shaft sikuyenera kuchulukitsidwa, chifukwa izi zimabweretsa kuwonjezeka kwakukulu kwa mphamvu zowongoka za inertial, zomwe zingayambitse kulephera kwa zipata. Kuchuluka kwa kusintha kwa shaft kumayambira 200 mpaka 350 pamphindi pa alonda amakono. Feremu yokhala ndi macheka olimba imasunthira mmwamba ndi pansi ndipo motere mitengoyo imadulidwa. Mtunda womwe chimango cha chipatacho chimayenda kuchokera kumunsi kwambiri kufika pamalo apamwamba kwambiri umatchedwa **gatter stroke size.*
Kukula kwa sitiroko kumakhudza zokolola za mlonda wa pakhomo. Ndi kuwonjezeka kwa sitiroko, ndi chiwerengero chomwecho cha zosinthika, zokolola za chipata zimawonjezeka. Kukula kwa sitiroko kungaonjezeke ngati mawerengedwe apangidwa kale.
Stepe - kusuntha ndikusuntha kwa zipika panthawi imodzi yokhotakhota pachipata. Kukula kwa sitepe ndi mphamvu ya galimoto yoyendetsa galimoto kungadziwike ndi ndondomekoyi:
Kusamuka kwa Lolemba ndi Mbiri Yakale
Δ =140N / Σn mm pamene Δ ndi sitepe ya chipika kapena mtengo panthawi imodzi yokhotakhota ya chipata, mm; N - mphamvu yamagalimoto kx s; Σ - chiwerengero cha kutalika kwa mabala pakati pa kutalika kwa chipika; h - chiwerengero cha kutalika kwa mabala pakati pa kutalika kwa chipika, m; n - chiwerengero cha kusintha kwa chipata cha chipata, min.
Chiwerengero cha kutalika kwa mabala chikhoza kuwerengedwa molingana ndi mawonekedwe Σh = α x dsr x z, pamene α ndi coefficient, yomwe imasonyeza kutalika kwa mabala ndi omwe amatengedwa.0,65-0,80matabwa akadulidwa. Mtengowo ukadulidwa, coefficient iyi ndi yofanana ndi umodzi; dsr \ - m’mimba mwake pakati pa chipika; z - chiwerengero cha macheka omangika mu chimango.
Kudula thundu, kukula kwa kusamutsidwa kumafika60%, kwa larch -85%, kwa kalata -70%, kwa birch -80%kuchokera pazitsulo za paini ndi spruce zoperekedwa patebulo1.
Ma tabular a zipata zoyimirira
| D | 10-12 | 13-14 | 15-16 | 17-18 | 19-20 | 21-22 | 23-24 | 25-26 | 27-28 | 29-30 | 31-32 | 33-34 | 35-36 | 37-38 | 39-40 | 41-44 | 45-48 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| α | |||||||||||||||||
| 0 | 33 | 33 | 31 | 28 | 26 | 24 | 22 | 20 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 100 | – | – | 32 | 29 | 26 | 25 | 23 | 20 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 120 | – | – | – | 30 | 27 | 26 | 24 | 21 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 140 | – | – | – | – | 28 | 26 | 24 | 22 | 20 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 |
| 160 | – | – | – | – | – | 27 | 24 | 23 | 21 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
| 180 | – | – | – | – | – | – | 25 | 24 | 22 | 19 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
| 200 | – | – | – | – | – | – | 24 | 23 | 20 | 18 | 16 | 15 | 14 | 13 | 13 | 11 | |
| 220 | – | – | – | – | – | – | – | – | 24 | 21 | 19 | 17 | 15 | 15 | 13 | 13 | 11 |
| 240 | – | – | – | – | – | – | – | – | – | 22 | 20 | 18 | 16 | 15 | 14 | 13 | 11 |
| 260 | – | – | – | – | – | – | – | – | – | – | 21 | 19 | 17 | 16 | 14 | 14 | 12 |
| 280 | – | – | – | – | – | – | – | – | – | – | – | 21 | 18 | 16 | 15 | 14 | 12 |
| 300 | – | – | – | – | – | – | – | – | – | – | – | – | 20 | 16 | 16 | 15 | 12 |