hydraulic coupling main components

Fluid couplings main components : the pump wheel , turbine , rotating housing , an input shaft , an output shaft and a spoon pipe . Normally, turning the shell and the pump wheel rim flange is bolted connection.Hydraulic coupling of the pump wheel and turbine called the working wheel, two in both blades, two to input , output shaft connection, there is a  Hydraulic hose fittings  them , the pump wheel and turbine have the same radial dimensions shaped cavity , so together to form the working oil chamber , the working oil from the pump into the inside wheel and rotates together with the following power machine , the oil in the centrifugal force , left to the outside of the pump wheel , the formation of high oil flow rushed across the turbine blades, and gradually slow the flow of the turbine inner flow back inside the pump wheel , the oil forms a loop . The working fluid in the working chamber the absolute flow is a three-dimensional motion . Turn the pump wheel casing surrounds the turbine after connection , the energy stored in the working fluid into the pump wheel . Input shaft associated with the power machine ( such as motors ) , the output shaft and the driven machine associated ( such as pumps, rolling mill machinery , etc. ) .

What is the role of fluid coupling

1 , easing gear shaft rotation against accidents ;2 , the compensation and resettlement due to manufacturing defects caused by coupling two axial displacement , radial displacement and angular displacement restraint shaft produce excessive additional load ; Hydraulic tube fittings 3 the axis of rotation to reduce vibrations. In addition , it is only accepted with greater resistance to the structure or external resistance of the material within the larger ( such as rubber , plastic, etc. ) to make the center of the coupling member when the force transmission can be achieved .4 When stiff by unexpected overload, usually cause the drive device or other parts of the ground . If accepted by coupling the drive shaft lines , using the contact sleeve is breaking the coupling elements , evacuation or slipping, so that the force transmission stream flow restraint or limited force to convey , you can play a protective effect .

hydraulic coupling disassembly basic steps

1 after the step of emptying the hydraulic oil(1) Open the oil filter and inspection and cleaning(2) Remove the coupling and check(3) Check the input shaft, an output shaft runout.(4) Remove the slide from the box regulators and transmission lever.(5) Remove the auxiliary lube oil pumps and motors(6) Remove the oil pump and the electrical auxiliary work(2) Remove the lid and hanging open, check the gear meshing.3Hydraulic adapters  disintegration of the input shaft and the rotor member subsequent steps(1) Check the pump and turbine wheel (blade resonance test).(2) Remove the bearing condition by measuring the bearing clearance.(3) Check the scoop tube body wear.(4) Check the fusible plug, if necessary, replaced with new parts.(5) re-scrape back after bush loaded (if necessary grinding shaft).(6) cleaning rotation within the housing product oil and dirt.

Coupling causes low oil pressure

Coupling causes low oil pressur1 working oil filter clogging;2) Operating pressure relief valve installed incorrectly or damaged3 Working oil pump suction pipe blockage4 Working oil pump intake air.The hydraulic coupling solution is too low1 cleaning filter strainer;2  Hydraulic tube fittings fault and correct installation of the oil pressure relief valve;3 Check and clean up the oil pump inlet tube;4 Check the oil pump suction pipe sealing work, clear leakage.

the use of the characteristics of fluid coupling

Using hydraulic coupler has the following four main features:1, using the fluid coupling can significantly improve motor starting performance, increase motor starting capability.2 , the use of multi-stage hydraulic coupling parallel operation , coordinated multi- motor Hydraulic pipe fittings  load equally.3, using the fluid coupling to protect the motor and equipment to prevent motor overload .4, using the fluid coupling can have a smooth start load equipment , reduce equipment during operation shock and vibration

Fluid coupling main applications

1 belt conveyor, scraper conveyor, bucket elevator and a bridge , tower cranes and other lifting transport machinery .2 ball mill, crusher , grinder, mixer and screening machines and other Hydraulic ferrules  and mining machinery .3 centrifuges , mixers , concrete conveyors, as well as fans , pumps and other high-inertia machines4 in the power, cement , mining , metallurgy and other industries has played a huge role in environmental protection, energy saving .

a fluid coupling mounting and dismounting

Couplings should be installed before the prime mover and the working machine shaft clean and apply grease. Not allowed when installing coupling plate or aluminum casing hammer beating , nor hot charging to avoid damage to seals and components . Cutter shaft in the work machine screw hole and screwed on the screw by rotating the screw cap nuts on Hydraulic adapters  coupling device on the screw shaft ( associated with coupling ) into balance , mounted on the device. Installation tool is optional , such as the need to purchase when ordering . Coupling the input and output aperture tolerances recommended that users specify when ordering to G7 tolerance , if not marked according H7 tolerance execution. Fluid coupling disassembly , the first floor of the original motor fastening bolts loose after about moving motor coupling half the separation , and then remove the hydraulic motor shaft thread Rama coupling halves , Finally, remove the screw screwed into the coupling spindle disassembly screw holes will remove the top of the coupling body , do not knock the couplings aluminum housing to be demolished . Removal tool is optional , such as the need to purchase when ordering . No prior contact with professional maintenance personnel shall not disassemble coupling body , precision and balance to avoid damage to seals and other problems , such as damage to the user disassemble solution will not warranty .