Electro Hydraulic Thrustor

Transcription

1 ELECON PERIPHERALS LTD. (Elecon Group of Companies) Electro Hydraulic Thrustor ELECON PERIPHERALS LTD. Post Box # 43, Anand-Sojitra Road, Vallabh Vidyanagar Gujarat, India. Phones : +91 (69) 7960, 7971, 797 ax : +91 (69) info@epl.elecon.com

2 Introduction: The Electro Hydraulic thrustor is the device which converts input Electrical signal in to linear motion. Hence it's also called Linear Actuator. This system mainly consists of 3 Phase Electric motor, motor operated impellor, Oil (transformer oil) as a working fluid and a Piston. Hence this system can be divided in mainly two parts,1) Electric Motor and ) closed loop hydraulic system. By simply providing electric power, smooth constant force in linear direction can be produced. This linear and jerk free thrust can be used to operate several mechanisms i.e. Thrustor operated brakes, door shutters, damping systems etc. Working Principle: The impeller of the centrifugal pump driven by the motor generates a hydraulic pressure in the space under the piston. A hydraulic force is generated by the piston. Amount of force is dependent on Piston area and the pressure. Hence electrical power is converted in to the linier motion (of piston). Pressure is relived when motor is switched off (i.e. when there is the power failure). Piston comes at it's lower most position under the impression of counter weight or springs. (of mechanism on which Thrustor is mounted.) Application: One of the most common applications is the Thrustor operated Brake. In this application Thrustor is used to operate a Mechanical brake. Electrical power is used to rotate the impeller which in turn generates the hydraulic pressure by working on Oil hence to lift the piston. This smooth and jerk free thrust is either controlled by a appropriate stiff spring or counter weights of mech. brake. Brake shoes are operated by brake mechanism, which is operated by thrustor. Here Thrustor operated Brake acts as an important safety device. Other Applications: Lever actuation, Machine tools applications, Press machines, conveying equipments, lifting equipments etc. Key eatures : Easy to install & maintain Variable mounting position o (Up to inclination from vertical is possible) Maintenance free Long life Low power consumption Suitable for V, 3 phase, 50 Hz Connections Refer to the below cross section drawing describing major parts of thrustor. Constant and Jerk free thrust Less heat generation hence long life for motor Totally enclosed hydraulic system Controllable power and return stroke Meets IP-55 degree of protection Tested at E.R.D.A., Baroda THRUSTOR DURING MOTOR IS SWITCHED O THRUSTOR DURING POWER STROKE

3 Electro Hydraulic Thrustor TECHNICAL SPECIICATION EHT TECHNICAL SPECIICATION EHT54 TECHNICAL SPECIICATION EHT

4 TECHNICAL SPECIICATION EHT TECHNICAL SPECIICATION EHT TECHNICAL SPECIICATION EHT Note : or non-standard product, contact us with technical details.

5 INSTALLATION AND MAINTENANCE MANUAL ) MAINTENANCE: EPL make Electro Hydraulic Thrustors are almost maintenance free, however for smooth and quick thrust, guide rods must be properly cleaned time to time. While connecting thrustor to Mechanical brake, Pin joints must be lubricated enough for free movement. urther if thrustor is installed under open atmosphere, proper covering of thrustor is necessary to protect it from rain, dust and humidity. 0) ELECTRICALS: Thrustor motors are totally enclosed but it's necessary to cover motor portion if thrustor is installed in open atmosphere, to avoid damage from rain water. Motor winding is of class. Motor is designed for operating under volts, 3 Phase and 50 Hz Connections. or free and flexible movements, connecting wire must be at least 5 meters in length. As thrustor function is independent of motor/impellor rotation direction, wires can be connected in any sequence. How ever thrustor must not be turned ON without filling oil of proper proportion for safety of motor. ) OIL ILLING INSTRUCTIONS: ill the thrustor with good quality transformer grade oil. ill the oil through upper oil filling plug until it over flows. or removing air (if any trapped ), run the upward and downward strokes manually for several times and if oil level decreases, fill the oil until oil overflows. Oil once filled will last for long time, however when it's required oil can be drained through bottom drain plug. While filling oil, thrustor must be held vertically. Improper amount of oil in thrustor will cause to insufficient pressure head, hence shorter stroke length. Ensure proper tightening of filling and draining plug after filling oil. ) MOUNTING: Thrustor are mounted vertically on Mechanical brake, however maximum tilting of degree is allowed while mounting. Thrustors are mounted on brake by means of pivot pin. or proper functioning, pin must be lubricated with oil and rust free before using. ) INSTALLATION: Installing procedure of the thrustor in various systems may vary case to case, however for actuation of the thrustor only above mentioned electrical connection is needed. SPARES AND IMPORTANT PARTS O THRUSTOR MOTOR: Motor of EPL make thrustor is totally enclosed and built with superior material under strict stage inspections. class Insulation is used, hence motor can run even in higher ambient temperature. BEARINGS: Grease filled bearing is used in driving motor and splash lubricated bearing is used in hydraulic system. OILSEAL: Oils seals are provided at the thrust rod. Time to time dust removal is recommended from thrust rods to avoid wear of oil seal. A separate cover will work best in case of dusty atmosphere. IMPELLOR: An aluminum cast centrifugal impellor spins in oil and develops pressure head to lift the piston, hence thrust of proper amount is generated. TERMINAL BOX: terminal box. All thrustors are provided with terminal box. Earthing stud is provided in the Note:- However EPL make thrustors meet IP-55 standard, for long and maintenance free life it's advisable to follow abovementioned instructions.

6 PRODUCT PROILE Over Riding Spiral Jaw Clutch Centrifugal Brake Electro Hydraulic Thrustor Brake Electro Hydraulic Thrustor AHMEDABAD : Phone : , 64684, ax : sales@ahdemtici.elecon.com BILASPUR : Phones : , 4765 ax : salesbil@bilemtici.elecon.com INDORE : Phone : Telefax : MADURAI : Phone : ax : NEW DELHI : Phones : , , ax : salesdel@delemtici.elecon.com ASANSOL : Phones : , 376 ax : salesasn@asnemtici.elecon.com CHENNAI : Phones : , , ax : salesmad@mademtici.elecon.com JAMSHEDPUR : Phones : , ax : salesjns@jmpemtici.elecon.com MUMBAI : Phones : , 85, 865 ax : salesbom@bomemtici.elecon.com PUNE : Phones : ax : salespune@puneemtici.elecon.com VADODARA : Phone : , 367 ax : salesbrd@brdemtici.elecon.com BANGALORE : Phones : , ax : salesbgl@bglemtici.elecon.com DHANBAD : Phones : ax : salesdhn@dhnemtici.elecon.com KOLKATA : Phones : , ax : salescal@calemtici.elecon.com NAGPUR : Phones : , 6646, ax : salesnag@nagemtici.elecon.com SECUNDERABAD : Phones : , ax : salessec@secemtici.elecon.com ELECON PERIPHERALS LTD. (Elecon Group of Companies) Post Box # 43, Anand-Sojitra Road, Vallabh Vidyanagar - 388, Gujarat, India. Phones: +91 (69) 7960, 79, 7941, 7971, 797 ax : +91 (69) 365, info@epl.elecon.com Akaaish Printing & Stationery