Ɔkwan a wɔfa so yɛ 5/2 .Pilot pneumatic valve abien .yɛ directional control valve a wɔtaa de di dwuma wɔ mframa nhyehyɛe mu de hwɛ sɛnea nneɛma abien no kɔ so-acting actuators (sɛ nhwɛso no, cylinders). Ne pilot actuation ne layout a ɛbɔ ho abien no ma no kwan ma ɔde adwuma a wɔyɛ no daa ne nea wotumi de ho to so ma a ɛwɔ out requiring non-Stop energy enter.
Nneɛma titiriw a wotumi yɛ ne nea wotumi yɛ .
5ports: .
Port P: Wɔ mframa a wɔahyɛ no den mu de ma.
ports A ne B: Sɛnea ɛbɛyɛ a wobɛfa actuator no so (sɛ nhwɛso no, cylinder).
Hyɛn gyinabea R1 ne R2: Mframa a wɔde fi mu ba a wɔde mframa a efi actuator no mu ba.
2gyinabea: .
Dwumadie 1: Nneɛma a mframa kɔ hyɛn gyinabea A na ɛma mframa firi hyɛn gyinabea B (a ɛtrɛw cylinder no mu).
Dwumadie 2: Nneɛma a wɔde yɛ adwuma mframa a ɛkɔ hyɛn gyinabea B na ɛma mframa firi hyɛn gyinabea A (wɔtwe cylinder no firi hɔ).
Pilot actuation a ɛbɔ ho abien:
Wɔnam pilot nsɛnkyerɛnne abien so na ɛhwɛ valve no so (pneumatic inputs), mpɛn pii no wɔ valve no frame no nyinaa gyae.
Pilot 1: Dane gyinabea 1 (sɛ nhwɛso no, amplify).
Pilot 2: Ɛma dwumadie 2 yɛ adwuma (sɛ nhwɛsoɔ no, twe wo ho fi ho).
Sɛ wɔde wimhyɛnkafo sɛnkyerɛnne bi ma ara pɛ a, valve no sesa na ɛtra saa gyinabea no kosi sɛ wɔbɛyɛ wimhyɛnkafo sɛnkyerɛnne foforo no.
Nkaeɛ tumi: .
Pilot valve a ɛbɔ ho abien no yɛ latching; Ɛtra ne dwumadi a etwa to mu sɛ woyi wimhyɛnkafo sɛnkyerɛnne no fi hɔ mpo a, bere tenten a ebia sɛnkyerɛnne biara nni hɔ a ɛne no bɔ abira no. Eyi yi nea wɔpɛ ma non-gyina pilot strain ano no fi hɔ.
mfasoɔ
Ahoɔden adwumayɛ: Wɔmpɛ sɛ mframa a ɛkɔ so de ma no bɛkura valve no gyinabea.
Dependectable Switching: Ɛma akwankyerɛ a ɛkɔ so daa na wotumi de ho to so manipulate.
Simplified circuit layout: Latching mechanism no brɛ nea wɔpɛ ma nneɛma a wɔde ka ho a wɔde bɛka ho no so tew na ama wɔatumi akura gyinabea ahorow mu.
Applications .
Double-Appearing cylinders: Control extension ne retraction of cylinders wɔ aguadi automation ne mfiri mu.
Dwumadi a wɔkora so: Ɛkora cylinder no gyinabea so wɔ ahoɔden anaa sɛnkyerɛnne bi a ɛyera ho.
Nneɛma a wɔde yɛ mframa a wotumi dannan mu: Wɔde di dwuma wɔ nhyehyɛe ahorow mu a ɛhwehwɛ sɛ wɔyɛ nneɛma a ɛsesa wɔ aman abien ntam, a nea ɛka ho ne nneɛma a wɔde kyekyere nneɛma, nneɛma a wɔde di dwuma, anaa robɔt ho.
Ɔkwan a ɛfa so yɛ adwuma .
Bere a pilot 1 no yɛ nhyɛso no, spool a ɛwɔ valve no mu no sesa, na ɛde port P kɔ port A (a ɛtrɛw cylinder no mu) ne port B kɔ exhaust (R2) mu.
Sɛ wɔde nhyɛsoɔ 2 no hyɛ mu a, spool no dannan ne ho kɔ fam, na ɛka port P kɔ port B (ɛtwe cylinder no so) na port A kɔ exhaust (R1) mu.
Valve no kɔ so yɛ ne gyinabea a aka no kosi sɛ wɔbɛyɛ pilot sɛnkyerɛnne foforo no, na ɛhwɛ ma ɛyɛ mmerɛw na wɔhwɛ so.
Wɔ Precis mu no, anum/2 kwan so abien pilot pneumatic valve yɛ sturdy ne green asɛm ma controlling BI-directional motion wɔ pneumatic structures, titiriw wɔ mu latching tumi yɛ mfaso.
