FTI KATALOGE PDF

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Fti Kataloge Pdf

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Greengarden Road • Erie, PA U.S.A • Ph • Fax E-mail [email protected] • ciofreedopadkin.ga FTI is pleased to provide our customers the very latest in up-to-date information on our products, systems, and tooling. The documents below are available to. your catalog is up to date, please contact your nearest FTI offi ce or .. FTI manufactures most of the Cold Expansion process tooling and.

The pin is pressed in the large hole section C section of lever 2 by the return spring via the spool , pin , and feedback lever , so accompanying rotation of lever 2 , the feedback lever rotates with the D section as the support point and the spool moves to the left. When the spool moves, the CI port opens to the tank port, so the pressure in the large-bore chamber of the servo piston drains out, the servo piston is moved to the left by the discharge pressure Pd1 of the small-bore section and the flow increases.

Accompanying the movement of the servo piston , the D section moves to the left, the feedback lever rotates with the C section as the support point and the spool moves to the right.

This operation continues until the opening between the spool and sleeve and closes and stops at the location where the opening is completely closed. Flow return operation If the self pump discharge pressure Pd1 or the partner pressure pump discharge pressure Pd2 decreases.

Because of this. When the spool moves. The feedback lever rotates with the F section as the support point and the spool moves to the left. Main Equipment Structure and Operation Explanation 3. Accompanying the lever 1 rotation. Below is a simple explana- tion. RSTE 4. Displacement volume Horsepower control operation is the same as for flow control.

For detailed operation of each part. High-pressure selection function For the pilot pressure Pi. It moves until the opening between the spool and sleeve closes and stops at the location where the opening is completely closed. The servo piston movement is transmitted to the spool by the feedback structure and the operation continues until the opening between the spool and sleeve is closed.

Overload prevention operation When the self pump discharge pressure Pd1 or the partner pump discharge pressure Pd2 rises. The servo piston movement is transmitted to the feedback lever via the D section.

The pin fixed to the feedback lever projects into the large hole section F section of lever 1 Since this regulator is the simultaneous all-horsepower control type. On the other hand. D When the power shift pressure Pf increases. With this type of mechanical selection method. Main Equipment Structure and Operation Explanation [3] Low tilt revolution low flow command priority structure As above.

The discharged oil is held at the set pressure of 3. In order to prevent oil leaking to the outside. Unnecessary discharge oil is drained from the drain port via the relief valve.

The relief valve comprises the filter Inside the casing are installed the drive gear and driven gear pair and the relief valve for setting the discharge pres- sure. Operation Suctioned in from suction port B3 is discharged from discharge port A3 by the drive and driven gears.

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Main Equipment Structure and Operation Explanation 2 Structure The swash plate type piston motor with case rotation type reduction gear for the open circuit comprises [1] the double counter balance valve for controlling the speed of the motor according to the feed flow [2] the crossover relief valve for determining the motor drive force and braking force [3] the 2-speed switching mechanism for switching the motor speed between two speeds.

When the automatic 2-speed position is selected. This reduction gear converts the high-speed.

Automatic 2-speed function The low-speed mode fixed position and automatic 2-speed position can be selected. Structure functions [1] Double counter balance valve The purpose of this valve is to control the speed of the motor according to the feed flow. At the reduction gear. The component devices above are formed into one compact unit that provides high reliability and superior performance. When the motor is stopped. This piston motor converts the fluid energy of the pressurized oil sent from the hydraulic pump into mechanical energy and outputs high-speed.

RSTE This section explains the operations of each function using this standard double counter balance valve. Stopped state Figure 3 When the control valve is in neutral the motor stopped. Main Equipment Structure and Operation Explanation 3 Explanation of operation of functions a Double counter balance valve As the roles of the double counter balance valve.

Motor starting Figure 4 When the pressurized oil discharged from the hydraulic pump is led to the double counter balance valve P1 port.

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At this time. When the flow of oil through oil path B is stopped. In this case. When the control valve is returned to neutral. In this way.

This prevents the piston motor from running wild. Piston motor braking Figure 5 The double counter balance valve makes up the brake circuit together with the crossover relief valve. At the same time. Counter balance function Figure 4 During piston motor rotation. High-pressure selection shuttle valve function Figure 6 and Figure 7 The double counter balance valve has a high-pressure selection shuttle valve function added for releasing the parking brake through its own pressure.

When pressurized oil is fed from the P1 port. Figure 9 Operation of relief valves B. Operating the relief valve in two stages in this way reduces the shock that occurs when the piston motor is started or braked and provides good operability. When the shockless piston movement is complete.

Relief valve operation and functions Figure 9 When the control valve moves and the piston motor is started up or braked. Main Equipment Structure and Operation Explanation b Crossover relief valve Figure 8 shows the structure of the relief valve. Figure 10 compares the pressure wave- forms of the conventional type and the shockless type.

Shockless function Figure 10 When the relief valve starts to operate. This relief valve has a shockless function for reducing the shock that occurs at the start of startup and braking of the differential surface area type direct action relief valve.

D Figure 8 Structure of relief valves A. Motor low-speed high-capacity position Figure 11 shows the state with the motor capacity fixed to the low-speed high-capacity position. When the speed control switch is set to low speed and the pilot pressure acting on the Ps port is released to the tank. When the speed control switch is set to high speed and the regulation pressure is allowed to oper- ate on the Ps port.

Automatic 2-speed position that selects the motor capacity according to the load pressure Figure 12 shows the state of the automatic 2-speed position that selects the motor capacity according to the load pressure.

When Pin is lower than the motor capacity control pressure P determined by the ratio of the pilot pressure pressurized area and the motor load pressure pressur- ized area. When the regulation pilot pressure is allowed to operate on the Ps port. High-speed motor state for automatic 2-speed position Figure 13 shows the high-speed motor state for the automatic 2-speed position.

Low-speed motor state for automatic 2-speed position Figure 14 shows the low-speed motor state for the automatic 2-speed position. When the load pressure Pin on the motor rises and becomes higher than the motor capacity con- trol pressure P discussed above.

Operating the parking brake Figure 16 When the control valve is returned to the neutral position.

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Releasing the parking brake Figure 15 When pressurized oil is fed from the P1 port and attempts to start driving the piston motor. Main Equipment Structure and Operation Explanation d Parking brake function Figure 15 shows a structural diagram of the parking brake section. The parking brake is made up of the disks 1 coupled with the cylinder block. As a result. The pressurized oil discharged from the hydraulic pump flow in from the P1 port or the P2 port and while the piston motor rotates.

Main Equipment Structure and Operation Explanation e Piston motor A swash plate type piston motor is used as the piston motor. Figure 17 shows a structural diagram of the piston motor. B Figure 17 Piston motor structural diagram [1] The high-pressurized oil from the P1 port enters the valve plate 22 sausage-shaped B port.

B and C.

Main Equipment Structure & Operation_explaination

Nine pistons are incorporated in the cylinder block and the end of the cylinder block 4- 1 touches a valve plate 22 that has two sausage-shaped ports. This transmits power to the driven section of the machine main unit which is coupled with the housings and The planetary gear A meshes with the drive gear In the reduction gear section.

Because the planetary gear is fixed in a state in which it rotates freely on the holder via the needle bearing The planetary gear B meshes with the sun gear Low- speed. The reduction gear structure combines in two stages the simply planetary reduction gear unit made up of the drive gear. The planetary gear B is fixed in a state in which it rotates freely on the holder via the needle bearing When the sun gear rotates clock- wise.

Main Equipment Structure and Operation Explanation f Reduction gear Figure 18 shows a structural diagram of the reduction gear. When the drive gear rotates clockwise. Through the above action.

When pressurized oil flows into the piston motor. The piston AS 7 is guided by the return plate 6 and receiving spring 4 so that it slides smoothly on the cam plate 5. As parking brakes.

The discharge path is the reverse of the above pressurized oil feed path and the oil is discharged from the B port. Main Equipment Structure and Operation Explanation 2 Hydraulic motor operation explanation The pressurized oil fed by the pump through the control valve or the like enters from the A port or B port on the cover 32 and is discharged from the B port or A port. The output shaft 61 is supported in the gear case 66 by two bearings The pressurized oil fed to the A port is fed to the cylinder 24 piston hole "f" through path "b" in the cover The cam plate 5 shoe sliding surface has a constant angle slope.

The hydraulic motor output torque is determined by the hydraulic pressure force and speed is determined by the feed oil quantity. The piston AS 7 shoe spherical section is coupled as a free D joint. The pressurized oil operates on the piston AS 7 and the piston AS 7 is pressed against the cam plate 5.

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When the mechanical brake release chamber pressure is zero. Immediately after this operation.

In order to prevent that. Because the valve is at the half lever position. During this time. Main Equipment Structure and Operation Explanation 5 Make-up valve operation explanation [1] Half brake state state in which the shockless relief valve 35 is not operating After the swing body is accelerated.

The A port oil resists the force of the spring In order to prevent this. The B port pressure that rises pushes open the poppet 46 resisting the force of the spring This two-stage operation provides a function that reduces the shock of motor starting and stopping. When the oil in and out directions are reversed. Compartments per rotation [cm3] Low pressure oil High pressure oil F2 F1 Outlet Inlet F 3 2 1 Piston 4 1 2 Drive shaft Figure 1 Motor section operation explanation diagram 2 Valve casing section [1] Anti-cavitation check valve section Because the system using this type of motor does not have a valve with a counter-balance function.

D The theoretical output torque [Nm] is given by the following equation. This force F is divided into two vectors. Rotation torque is transmitted to the output shaft by multiple pistons sequentially linked with the high-pressure oil intake side port.

In order to prevent cavitation due to insufficient oil. Nine pistons are arrayed in the cylinder block. This force F2 is transmitted to the cylinder block 4 via the piston.

When the friction plate that is gear coupled to the cylinder outer circumference section is pressed to the casing by the brake spring via the separator and the brake piston Main Equipment Structure and Operation Explanation 3 Brake section The cylinder is coupled with the drive shaft by the gear. The drive shaft is constrained and braked by this friction force. At the pressure where there is balance between the hydraulic pressure determined by the product of the pressure P and the pressurized area A1 of the plunger on the one hand and the hydraulic pressure determined by the spring load FSP and plunger pres- surized area A2 and the g chamber pressure Pg on the other hand.

Through the processes 1 through 4 above. Initial set load for the spring 2 State shown in Figure 4. Through the operation above. We've paved the roads to make driving, walking, jogging and biking so much easier and to keep the dust down. Completed a "make-over" of the 6, square feet recreation hall to include a wraparound, screened-in porch, beautifully remodeled bathrooms with showers, and a fully-functional kitchen with new cabinets, countertops, stove and tiled floor.

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B When the [Travel 2] side level is operated. The straight travel signal control valve integrates the signal pressures and controls straight travel spool switchover. With this type of mechanical selection method. High-pressure selection function For the pilot pressure Pi.