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Piston pumps are generally divided into single piston pumps, horizontal piston pumps, axial piston pumps and radial piston pumps. Single piston pump The structure consists of an eccentric wheel, a plunger, a spring, a cylinder block, and two check valves. A closed volume is formed between the plunger and the cylinder bore. The eccentric wheel rotates and the column ...

Hydraulic pumps can be divided into four types according to their working principle, the details are as follows. 1. Gear pump The volume is smaller, the structure is simpler, the cleanliness of the oil is not strict, and the price is cheaper; However, the pump shaft is subject to unbalanced force, severe wear and tear, and large leakage. 
Externally meshing gear pump when tooth ...

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 ...

The easy-to-set up, highly integrated mechatronic subsystem provides a more efficient engineering handling solution. With the new Cartesian multi-axis system, Bosch Rexroth linear drive technology offers you a valuable competitive advantage. The handling robot, which consists of linear axes, flows through the entire value ...

1. Conduct regular testing and diagnosis of Rexroth piston pumps According to the collected fault signal, draw the online working performance curve of Rexroth piston pump and make an evaluation report. Based on the results of the monitoring, it is decided whether to repair the Rexroth piston pump. Thus determining the most ...

1. Adopt the correct Rexroth vane pump speed conversion method, the conversion mode of the solenoid valve, the impact is larger, the conversion accuracy is lower, the reliability is poor, but the control flexibility is large; 2. The electro-hydraulic reversing valve uses a current valve with damping, and by adjusting the damping size, the Rexroth blades ...

1. First of all, adjust the pressure adjustment screw of Rexroth variable hydraulic pump relief valve to the loosest state, adjust the minimum flow limiter to the minimum state (the upper hydraulic cylinder adjusting screw is adjusted to the loosest state), adjust the flow control valve adjusting screw to the tightest state, and connect a flow rate in series after the relief valve.

1. The installation of the piston pump needs special attention, the direction should not be mistaken, and the direction of the oil filler port should be upward, so that it is more convenient to use in the later stage. And it is necessary to use flexible couplings, which can better avoid any stress generated during the bending process, but the axial error needs to be 0 ...

EW stands for Exchange EG stands for Direct Current The meaning of each letter of Rexroth solenoid valve: For example, 4WE6E6X/EG24N9K4 4→ 4-way (there are also 3-way) 4-way ports 6→ is 6 E→ functional symbols (also C, D, E, EA...)

● Top performance, flexible and easy to use ● From components, modules to systems, zero threshold matching on demand ● More value-added services, users have no worries Worry-free, flexible and easy to use (Image source: Bosch Rexroth China) 　　"Production efficiency" is an eternal topic in the manufacturing industry ...

Step 1: Disassemble the proportional valve Unscrew the nut and slide out of the coil to remove the coil from the proportional end. Use a wrench to loosen and remove the tube. Remove the spring and slide the hex wrench from the tube. Then remove the spool from the valve. Step 2: Check the ...

1. Close the gate valve before the pressure reducing valve, open the gate valve after the pressure reducing valve, and create a downstream low-pressure environment; 2. Rotate the adjusting screw counterclockwise to the upper position (relative to the low outlet pressure), and then close the gate valve after the pressure reducing valve; 3. Slowly open the gate valve in front of the pressure reducing valve ...

1) The maximum and minimum temperature of the environment should be selected within the allowable range; 2) When the relative humidity in the environment is high and there are water droplets and rain, waterproof solenoid valves should be selected; 3) Special varieties should be selected for occasions such as vibration, bumps and shocks in the environment, such as marine solenoid valves; ...

1. High parameters: high rated pressure, high speed, high driving power of Rexroth oil pump 2. High efficiency, the volumetric efficiency is about 95%, and the total efficiency is about 90%. 3. Long lifespan 4. Variables are convenient and have many forms 5. Light weight per unit power 6. Force ...

1. Trapped oil (1) Causes The trapped oil of the gear pump is caused by the overlap coefficient of the gear design, as shown in the figure below, assuming that the length of the meshing line of the gear in the actual meshing is l and the tooth pitch is t0, then the overlap coefficient of the gear meshing is ε=l/t0. This overlap coefficient has such a ...

(1) Remove the burrs from each part. The sharp edge of the gear is poured with natural oil stone, but not into a fillet. The parts after flat grinding should be demagnetized, and all parts should be carefully cleaned with kerosene before they can be put into assembly. (2) Measure and ensure the axial clearance during assembly: Rexroth gear oil pump axial ...

1. The power domain (working limit) of the proportional valve For direct-acting electro-hydraulic proportional throttle valves, since the hydraulic force acting on the valve core is proportional to the flow rate and flow rate (pressure) through the valve port, when the working condition of the electro-hydraulic proportional throttle valve exceeds the product of its pressure drop and flow rate, that is, the power meter...

1. Characteristics of the medium 1) Different varieties of solenoid valves are selected for gas, liquid or mixed state; 2) The medium temperature is different for products of different specifications, otherwise the coil will burn off, the seal will age, and the life of the product will be seriously affected; 3) The viscosity of the medium, usually below 50cSt. If...

1. Workload cycle 2. Oil type 3. Minimum flow rate and maximum flow 4. Pressure range 5. System type: open system or closed system 6. Ambient temperature, system working temperature and cooling system 7. Oil pump type: gear pump, ...

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.