Precautions for the use of Rexroth piston pumps

Technical Parameters: 1) Select the valve port and model according to the requirements of the medium flow direction and the pipeline connection mode; 2) According to the flow rate and valve Kv value to select the nominal diameter, can also choose the same pipe inner diameter; 3) Working Differential Pressure: Low working differential pressure above 0.04Mpa is optional.

1. Direct-acting relief valve How it works: The hydraulic force and the spring force are directly balanced to control the opening and closing action of the valve core, so as to ensure that the pressure of the oil inlet is basically constant. Peculiarity: (1) The hydraulic pressure of the valve core is balanced by the spring force, so when the system pressure is very high...

There are 3 precautions when installing a hydraulic pump in the hydraulic system: 1. The coaxiality deviation between the hydraulic pump drive shaft and the motor drive shaft is less than that, and the flexible coupling joint is generally used, and the V-belt is not allowed to directly drive the pump shaft to rotate, and the pump shaft is subjected to excessive radial force, which affects the normal operation of the pump; 2 ...

1. Closed-loop hydrostatic drive swash plate axial piston variable pump; 2. The flow rate is proportional to the driving speed and displacement, and can be a stepless variable; 3. With the change of the swing angle of the swash plate, the flow rate increases from 0 to the maximum; 4. The swash plate swings in the middle position, which can be ...

1) Remove the protective covers on both sides of the flange end, and rinse and clean the valve when the valve is fully open. 2) Before the installation of the balance valve with actuator, the whole machine should be tested according to the specified signal (electricity or gas) (to prevent the vibration caused by transportation from affecting the performance).

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First wash. The first cleaning of the hydraulic system of the Rexroth Rexroth hydraulic pump is carried out after the pre-installation (trial assembly of the pipes) and the dismantling of the entire pipeline. The first cleaning should ensure that a large number of metal burrs and powders, sand dust, ...

1. Loosen and remove the connecting screws on the pump cover and bearing end cover. 2. Remove the positioning pin, pump cover and bearing cover. 3. Take out the transmission shaft and shaft sleeve from the housing of the pump. 4. Take out the two gears from the casing of the pump. 5. Remove the floating side plate and sealing ring ...

1. For easy operation and maintenance, the valve is generally installed upright on the horizontal pipeline. 2. The installation of the pressure reducing valve must be in strict accordance with the direction of the arrow on the valve body and keep it consistent with the direction of fluid flow. If the water quality is not clean and contains some impurities, it must be installed at the upstream inlet of the pressure reducing valve ...

1) According to the type of power supply, AC and DC solenoid valves are selected respectively. In general, AC power is easily accessible; 2) AC220V.DC24V is preferred for voltage specifications; 3) The power supply voltage fluctuation is usually +%10%.-15% for AC, and about ±%10 for DC allowable ...

1) If the cylinder body is inlaid with copper sleeve, it can be repaired by replacing the copper sleeve. First of all, trim the diameter of a set of plunger rods to a uniform size, and then polish the outer diameter with sandpaper of more than 1000#. There are three ways to install copper sleeves in the cylinder block: (a) Heating and hot charging of the cylinder block or low-temperature freezing and extrusion of the copper sleeve, interference ...

1) Coil problem Use a voltmeter to measure the voltage across the coil. This should help you determine if the coil is working properly. You can also gently pull the coil to feel if there is a magnetic force acting on it. If it proves difficult to pull, the coil generates a magnetic field, which creates an excitation.

The first step is the debugging of the zero position in the no-load state Most of the servo valves on construction machinery are used in conjunction with the reversing valve to achieve the purpose of controlling the hydraulic system. The servo valve plug-in can be unplugged on the site to prevent the servo valve from being energized and make it in a no-load state. Then, a manual or electric directional valve, ...

A Rexroth hydraulic motor is an actuator of a hydraulic system that converts the liquid pressure energy provided by a hydraulic pump into the mechanical energy (torque and speed) of its output shaft. Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, construction machinery, construction machinery, etc.

1. Direct-acting solenoid valve Principle: When the normally closed type is energized, the electromagnetic coil generates electromagnetic force to lift the open part from the valve seat and open the valve; When the power is off, the electromagnetic force disappears, the spring presses the opening on the valve seat, and the valve is open. Features: In vacuum, negative pressure, zero pressure ...

Classification and structural characteristics of Rexroth gear pumps 　　According to the form of gear meshing, it can be divided into external meshing and internal meshing. According to the different tooth curves, it can be divided into: involute and cycloid. According to the surface form, it can be divided into spur gear type, helical gear type, herringbone gear ...

1. The pump does not absorb oil, the flow rate is not enough, the pump is empty, and the pump is damaged. Damaged pumps, damaged skates or damaged ski and column ball joint seals; swash plate wear; wear of plungers and cylinder bores; failure of variable mechanisms; Wear of the oil distribution pan or wear of the oil distribution end face of the cylinder block; The LS valve of the pump is worn, the pressure is cut off...

1. Check whether the Rexroth vane pump shaft follows the motor rolling: if the motor rolls and the Rexroth vane pump shaft does not rotate, it may be a missing key on the Rexroth vane pump shaft or the key on the motor. 2. Check whether the rotation direction of Rexroth vane pump is correct: the steering is wrong, Rexroth ...

A10VO series variable piston pump is one of Rexroth variable piston pumps, A10VO series is Rexroth medium pressure series swash plate axial piston pump, nominal pressure 280bar, used in open hydraulic circuits, the pump is very widely used, is used in various fields, including but not limited to...

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