temel hİdrolİk b lg ler · 01.05.2014 · basit bir hidrolik devre tasarımı yandaki resimde...

TEMEL HİDROLİK BİLGİLER

ŞEMSETTİN IŞIL

ROTA TEKNİK A.Ş.

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Basit bir hidrolik devre tasarımı

Yandaki resimde basınç yükü karşılayacak seviyeye kadar yükselebilir.

Silindir haraket

yön kontrolü (yön valfi)

Silindir hız kontroü

(akış kontrol valfi)

Silindir yükünün sınırlanması (basınç emniyet valfi)

Sistemin boşalmasının engellenmesi (çek valf)

Basınçlı akışkan ile sistemin beslenmesi (elektrik motoru ile tahrik edilen hidrolik pompa)

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Hidrolik ve Pnömatik

Devre Elemanlarında Sınıflandırma

1.

Akışkana enerji kazandıran elemanlar:•

Hidrolik Pompalar

•

Kompresörler

2.

Akışkanın enerjisini kullanan elemanlar:•

Hidrolik Silindirler, Hidrolik Motorlar

•

Pnömatik

Silindirler, Hava Motorları

3.

Akışkanının enerjisini denetleyen elemanlar:•

VALFLER

Yön Denetim Valfleri

Basınç Denetim Valfleri

Akış Denetim Valfleri

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Hidrolikte 7 temel kural

1.

Hareketi akış sağlar2.

Basınç itme kuvvetini oluşturur.

3.

Sistemdeki akışkan (yağ) her zaman en az direnç olan hortumdan ilerler, bir başka deyişle en kolay yoldan depoya döner.

4.

Basınç akışa karşı gösterilen dirençtir.5.

Akışkanın hortum içinde akabilmesi için mutlaka basınç farkı olmalıdır.

6.

Basınç farkı büyüdükçe debi artacaktır.7.

Akışkan yüksek basınçtan düşük basınca iş yapmadan geçtiği sürece ısı ortaya çıkar

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Hidrolik Devre

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A B

P T

M

Hidrolik Devre

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Service, Training

M

A B

P T

Hidrolik Devre

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Service, Training

M

A B

P T

Hidrolik Devre

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Service, Training

M

A B

P T

Hidrolik Devre

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Service, Training

M

A B

P T

Hidrolik Devre

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Service, Training

M

A B

P T

Hidrolik Devre

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Service, Training

M

A B

P T

Hidrolik Devre

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Pompa Tipleri –

Dişli Pompa

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Paletli Pompa

Direkt Uyarılı Değişken Deplasmanlı Paletli Pompalar

RİNG

ROTOR

PALET

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Pistonlu Pompa –

Eğik Eksen (Sabit Dep.)

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Pistonlu Pompa –

Swash

Plate

(Değişken Dep.)

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Hidrolik Silindirler

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Hidrolik Silindir –

Montaj Şekilleri

Tabandan flanş

bağlantılı.

Ayak bağlama.

Döner mafsallı merkez:

Döner mafsallı silindir

Tabanda döner mafsal

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Yön Denetim Valfleri

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Akış Denetim Valfleri

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Basınç Denetim Valfleri

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Basınç Denetim Valfi

(Pilot Kumandalı)

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Kirlilik Nedenleri

Harici kirlilik

Montaj

Devreye alma anındaki kirlilik

Aşınma

Yeni yağ

Tamir işlemleri

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Kirlilik Seviyeleri

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Emiş Filtresi

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Basınç Filtresi

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Dönüş Filtresi