Hydraulic Actuators - SolidsWiki

September 6, 2013 – 11:10

Hydraulic Actuators

Hydraulic Actuators are mechanical Actuators that converts hydraulic pressure and flow into torque and angular displacement. The hydraulic actuator is the rotary counter part of the Hydraulic Cylinders. Conceptually, a hydraulic motor should be interchangeable with a hydraulic pump because it performs the opposite function - much as the conceptual DC electric motor is interchangeable with a DC electrical generator. However, most hydraulic pumps cannot be used as hydraulic actuators because they cannot be back driven. Also, a hydraulic actuator is usually designed for the working pressure at both sides of the motor.Hydraulic pumps, motors, and cylinders can be combined into hydraulic drive systems. One or more hydraulic pumps, coupled to one or more hydraulic actuators , constitutes a hydraulic transmission.

Hydraulic actuators or hydraulic cylinders typically involve a hollow cylinder having a piston inserted in it. An unbalanced pressure applied to the piston provides force that can move an external object. Since liquids are nearly incompressible, a hydraulic cylinder can provide controlled precise linear displacement of the piston. The displacement is only along the axis of the piston. A familiar example of a manually operated hydraulic actuator is a hydraulic car jack. Typically though, the term hydraulic actuator refers to a device controlled by a hydraulic pump.

Uses

Hydraulic actuators are used for many applications now such as winches and crane drives, wheel motors for military vehicles, self-driven cranes, and excavators. Conveyor and feeder drives, mixer and agitator drives, roll mills, drum drives for digesters, trommels and kilns, shredders for cars, tyres, cable and general garbage, drilling rigs, trench cutters, high-powered lawn trimmers.

Sources

Wikipedia Hydraulic Actuators


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Source: www.solidswiki.com

Amico Amico ME-8169 Wobble Coil Spring Lever NO NC SPDT Mini Enclosed Limit Switch
Home Improvement (Amico)
  • Product Name: Limit Switch; Model No.: ME-8169; Actuator Type: Wobble Stick Lever
  • IP Rating: IP66; Power: AC 380V, 6(2)A; AC 250V, 10(4)A
  • Mounting Hole Diameter: 4.5mm / 0.18 ; Body Dimension: 88 x 28 x 25mm / 3.5 x 1.1 x 1 (L*W*T)
  • Lever Length: 85mm/3.3 ; Main Color: Blue, Gray, Black; Material: Plastic, Metal, Rubber
  • Weight: 58g; Package Content: 1 x Limit Switch

I got a behind the scenes tour of that place

2010-02-24 17:14:50 by bent_rider

Back in the 80's.
got to see the control system, control room, etc.
Also got a behind the scenes tour of the 'Star Wars' ride.
The theater you sit in is a jumbo jet flight simulator up on these enormous hydraulic actuators that make the theater move around.
Was way more interesting than the actual ride.

Whats your problem?

2009-04-03 11:41:11 by HiredHelp

You seem to take an abnormal amount of pleasure in telling other folks what they are and are not. I didnt ask for advice from you, I asked for job leads from the board.
In between the time I last posted and this post, I was offered a position as a supervisor, in a high tech petroleum company, making hydraulic manifolds for actuators that control the flow of petroleum through the lines. Not bad for a worthless guy, huh?
Just goes to show that not even you, The Almighty, knows everything. And as for the union comment, the only way I ever knew I was in a union was from the dues being deducted from my check

Keltron receives order worth Rs 2.44 crore  — The New Indian Express
The pneumatic actuators will be manufactured at the Keltron Controls division of Keltron at Aroor in Alappuzha district.

Semiconductor Processing Improves with FPGA-based Controller  — Automation World
The machine includes a rotary mechanism with pneumatic actuators to handle freshly diced wafers, which are identified by a gigabit Ethernet camera to position the stage to pick components of the freshly cut silicon with actuators.

Amico Amico ME-8108 Momentary Rotary Adjustable Roller Lever Arm Limit Switch
Home Improvement (Amico)
  • Product Name : Limit Switch;Model No. : ME-8108;Actuator Action : Momentary;Actuator Type : Rotary Adjustable Lever Arm with Roller
  • Contact Configuration : NC + NO;IP Rating : IP66;Voltage Rating : AC 250V 5A ;DC 115V 0.4A
  • Roller Dimension : ~1.8 x 0.7cm / 0.7 x 0.3 (D*H);Lever Arm Length : ~10cm / 3.9
  • Fixing Thread Diameter : ~0.4cm / 0.2 ;Total Size : ~12.3 x 5 x 2.8cm / 4.8 x 2 x 1.1 (L*W*H);Material : Resin, Plastic & Metal
  • Color : Blue, Gray & Black;Net Weight : 91g;Package Content : 1 x Limit Switch
uxcell SPDT Long Hinge Roller Lever Miniature Basic Switch
PC Accessory (uxcell)
  • Product Name: Micro Switch; Material: Plastic & Metal
  • Model No.: V-156-1C25
  • Actuator Type: Long Hinge Roller Lever
  • Rating: 15A, 1/2HP, 125/250VAC, 0.6A,125VDC; 0.3A, 250VDC
  • Switch Body Size: ~2.8 x 1 x 1.6cm / 1.1 x 0.39 x 0.63 (L*W*H)
uxcell Long Hinge Lever Actuator Limit Micro Switch Black 2 Pcs
Home Improvement (uxcell)
  • Actuator Type: Long Lever; Material: Plastic & Metal
  • Rated Load: 3A  250V AC, 5A 125V AC
  • Switch Body Size(Each): 2 x 1 x 0.6cm/0.78 x 0.4 x 0.2 (L*W*H)
  • Hole Diameter: 2mm / 0.07
  • Lever Size: 2.5 x 0.4cm/0.98 x 0.15 (L*W)
Amico Amico TZ-7311 Parallel Roller Plunger Actuator Momentary Micro Switch
Home Improvement (Amico)
  • Product Name : Limit Switch;Model No. : TZ-7311;Conact Configuration : 1NO,1NC(SPDT);Actuator Action : Momentary
  • Actuator Type : Parallel Roller Plunger;Ui : 380V;Ith : 10A;AC-15 : Ue: 250V, le: 1.5A
  • DC-13 : Ue: 220V, le: 0.3A;Switch Body Size : ~5.3 x 2.1 x 4cm / 2.1 x 0.8 x 1.6 (L*W*H);Fixing Holes Dia. : ~0.44cm / 0.17“;Distance Between Centers of Fixing Holes...
  • Thread Size : 1.17 x 1.7cm / 0.46 x 0.7 (D*L);Roller Size : 1.2 x 0.35cm / 0.5 x 0.14 (D*T);Actuator Height : 3.7cm / 1.5
  • Color : Grey, Black;Net Weight : 83g;Package Content : 1 x Limit Switch

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