The primary qualities of bush or roller chain as well as sprockets are explained here. The brief pitch dè also as double pitch chains are considered. The chains may have solitary or numerous strands. All properties are defined inside a library of chains.
Roller pq-ini
Awọn ohun-ini pq akọkọ da lori awọn iṣeduro boṣewa jakejado orilẹ-ede. Iwọn pato ti pq naa tun ṣalaye awọn iwọn ibamu fun awọn sprockets ehin bi wọn ṣe ni lati ṣe ajọṣepọ ni deede pẹlu pq.
nibi ti: | |
p | ipolowo |
p t | ifa ipolowo |
b | maximum width over ara pinni |
b 1 | kere iwọn laarin akojọpọ farahan |
d 1 | o pọju rola opin |
d 2 | o pọju ti nso pin ara opin |
t 1 | sisanra ti akojọpọ farahan |
t 2 | sisanra ti lode farahan |
h 2 | ijinle awo inu ti o pọju |
h 3 | ijinle ode ti o pọju tabi agbedemeji agbedemeji |
Eyin eso igi awọn ini
Awọn ohun-ini onisẹpo Sprocket da lori iwọn pq kan pato gẹgẹbi awọn iṣeduro boṣewa orilẹ-ede. Kii ṣe gbogbo awọn ohun-ini ni a ṣalaye nibi nitori idiju. Fun awọn alaye diẹ sii lori awọn iwọn sprocket gangan wo awọn iṣedede pq ti o baamu.
Awọn oriṣi meji ti fọọmu ehin ni a gbero:
- O tumq si ehin fọọmu
- Irọrun ISO ehin fọọmu
Awọn tumq si ehin fọọmu ti a ṣe ki awọn pq rollers gùn jade si ọna awọn italolobo ti awọn sprocket eyin bi awọn pq wọ ati ki o elongates. Awọn ọna pupọ lo wa bi o ṣe le gbe awọn eyin sprocket jade, ati fọọmu ehin gangan le ma baramu ni deede fọọmu imọ-jinlẹ.
Fọọmu ehin ISO ti o rọrun jẹ ipinnu nipasẹ awọn fọọmu aafo ehin ti o kere julọ ati ti o pọju. Fọọmu ehin gangan, eyiti o pese nipasẹ gige tabi ọna deede, yoo ni awọn ẹgbẹ ehin ti fọọmu kan ti o dubulẹ laarin iwọn ti o pọju ati ti o kere ju ati idapọmọra laisiyonu pẹlu iyipo ibijoko rola subtending awọn igun oniwun. Nipa aiyipada ni Roller Chain Generator nlo awọn iṣeduro fọọmu aafo ehin ti o kere ju.
D P |
iwọn ila opin |
|
D a |
opin opin |
|
D f |
root opin |
|
d r |
igbo ti o pọju tabi iwọn ila opin rola |
|
z |
nọmba ti sprocket eyin |
|
p |
ipolowo chordal dọgba si ipolowo pq |
|
p t |
okun ifa ipolowo |
|
k |
nọmba ti strands |
|
SC |
ibijoko kiliaransi |
|
r i |
rola ibijoko rediosi |
|
r e |
ehin flank rediosi |
|
α |
rola-ibijoko igun |
|
h a |
iga ti ehin loke ipolowo polygon |
|
b f |
iwọn ehin |
|
b a |
iderun ẹgbẹ ehin |
|
b ax f |
ehin ẹgbẹ iderun ifosiwewe |
|
r x |
rediosi ẹgbẹ ehin |
|
r a |
shroud fillet rediosi |
|
b s |
kere shroud iwọn |
|
D s |
o pọju shroud opin |
|
h max |
ijinle awo ti o pọju h max = max (h 2 ; h 3 ) |
Idiwọn toothed sprocket
Fun wiwọn lori awọn pinni D g =d r . Fun wiwọn taara D g = 0.
nibi ti:
D P |
iwọn ila opin |
|
D g |
iwọn ila opin pin |
|
M r |
wiwọn lori awọn pinni tabi taara wiwọn |
|
z |
nọmba ti sprocket eyin |
|
d r |
o pọju pq rola opin |
Alapin laišišẹ
nibi ti:
D P |
iwọn ila opin |
|
D |
ipin opin |
|
p |
pq ipolowo |
|
p t |
okun ifa ipolowo |
|
k |
nọmba ti strands |
|
b f |
okun iwọn |
|
d 1 |
o pọju pq igbo tabi rola opin |
|
D s |
o pọju shroud opin |
|
b s |
kere shroud iwọn |
|
h max |
ijinle awo ti o pọju h max = o pọju (h2; h3) |