Question

Problem 1: Briefly explain the cylinders operation/sequences and task of elements used in the following hydraulic diagrams: m А B OM OMA P1.1 P1.2 3.1 3:2 Clamping 21 4 Releasing Extending 21 Retracting 3151 3116 START BUTTON P2.1 Cli, P3.2 P3.1 - -LAM OV

Answer 1

Figure : 7 1 4 M P

Giging nomenclature to the hydraulic circuit og fig. D. The list of component & there working os efollowing @: Double acting Cylinder are Actuator @ : Double acting Cylinder Aductes. 0:48: Check valve with Springs provides the slunction of single direction ©) : Spool type flow dividan Divide the flow across the lines. pow

- 24 Dizzection Control Valoe with lever operated Controles the direction oge flow ♡: Pressure gauge : Meoruz etui the Tf in the Croozent position oje Circuit & 2/4 Direction control valve - Fluid cooill go foram port P to B. pressure क > It will declamp both the actuators & lower the

passen zougb port B to T * Retwem Abeid Brem actuator goed through check valve é from port A to I of Dire- ction control valve return to tank - Tre the Direction control valve position is changed by lever & Flould will to P to A of D.C.V. passed through thisė talde abich Flow dividor & goed to actuator & Highero the Oleid from aduator g Dex & goes to tom go maag, & Return ofleid

Page: Date: LA * P1.1

As per Ligure nomenclature of figure, D. 2 Dizection control valve: Spool operated : Controls ditzection ope How % Direction Control valve Hydraulic/pumatic te operdited 9. Dozeble acting Actuator ~0.2 Direction Control value! 4 Roller type spool Operated Cylinder

og at the position and Circuit is Same as figure : In cwezent position Actuator R.I.lis 'm releading condition & P1.2 is im Ezetecting condition No flow of flied in the System. I wohen parah bzetton 2.2.1 is opera ted the flow passed to ☺ to © Danilo The D.C.Ve changer ita poartion the ollow goca to Actucces eli Statets the clamping process. geben pzoh bretton P5.] is Opercato the glory goop to aductor 2.1.2 Storda Extending proceso

scobes D.C.V.P 0.2 is operated the Allove changea D. C.V. 2 5 changed its position ť actuatezza P. 1. 7 & P 1. 2 starts & zetzacting process acco For your reference second figure is for pozematic fleid. releasing accordingly