Features of electrical proportional valves – Rexroth

Rexroth hydraulic pumps: 1. Most users think of a pump as an element that outputs a flow rate at a certain pressure 2. Hydraulic pumps often work at stable and high speeds 3. Generally, it is required that the pump can output high pressure when the rated speed is saved 4. In some applications, the pump is generally only ...

1. The resistance of the pump output pipeline is large Maintenance method: 1. Whether the placement of the output pipeline is accurate, the pipe diameter should not be too small, and the turning angle of the pipeline should be too much 2. Check whether the valve is sensitive 3. Properly open the outlet valve until the working condition point Second, the water and gas in the oil ...

It's hard to imagine a factory automation system without linear robots. The application of linear robots involves handling incoming materials during product production, assembly or packaging, whether integrated into a single machine as a pick-and-place unit or integrated into a semi-automatic or fully automated production line. However...

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. Daily maintenance 1) Strictly implement the post operation method and carefully fill in the operation records. 2) Check the bearing temperature and oil pressure regularly; Check the level height of the lubricating oil every shift. 3) Check whether there is leakage in the sealing part once per shift. 4) Do a good job in each shift ...

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1. Classification of piston pumps Piston pumps are generally divided into single piston pumps, horizontal piston pumps, axial piston pumps and radial piston pumps 1. Single piston pump It is mainly composed 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. Slanting...

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, ...

Example: A10VSO18DFR1/31R-PPA12N00 A10VS→ swash plate variable pump, this series of industrial drive, nominal pressure 28MPa, maximum pressure 35MPa; o → operation mode, this series is used in open circuit systems; 18 → displacement specifications of this model ...

1) The flow rate of the pump is proportional to the speed and displacement of the pump, and the swing angle of the swash plate can be adjusted steplessly 2) Coaxial structure, which can form a combined pump 3) Position-constrained backhaul structure 4) Spherical distribution, the plunger is arranged obliquely around the main axis 5) Stepless ...

1. Select the solenoid valve according to the pipeline parameters: the diameter specification (i.e., DN) and the interface mode 1) determine the diameter (DN) size according to the on-site pipeline inner diameter size or flow requirements; 2) Interface mode, generally > DN50 to choose the flange interface, ≤ DN50 can be freely selected according to the user's needs. ...

1. Determine the pressure The rated pressure of the selected metering pump is slightly higher than the actual maximum pressure required, generally 10-20% higher. Don't choose too high, too much pressure will waste energy, increase the investment and operating costs of the equipment. 2. Determine the flow rate Selected ...

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. Pressure reducing and stabilizing valve Main features: 1. Piston type with DN65 caliber or above. The life of the diaphragm is increased by more than 3 times; 2. Below DN50 caliber, the original diaphragm is replaced by a flat diaphragm of nylon reinforced rubber, which also improves the service life by more than 3 times. Applicable medium: water, air. Medium temperature ...

(1) HD (Hydraulic Variable) Type: Adjust the output torque and speed by controlling the swing angle of the motor block with external hydraulic oil. (2) HA (Pressure Variable) type: When the pressure reaches the set value, the motor changes the swing angle with the change of load, thereby changing the output torque and speed. Among them, the main one is constant pressure type (HA1) ...

1. The pressure of Rexroth piston pump cannot rise: 1. Rexroth piston pump does not have oil or insufficient flow - the same as the above elimination method. 2. The adjustment pressure of the relief valve is too low or faulty - re-adjust the pressure of the relief valve or repair the relief valve. 3. There is a leak in the system.

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Space-saving design: The measuring sensor is fully integrated into the slide Cost-effective position measurement system for a wide range of product sizes From design to service, save time and money 　　Integrated absolute position measurement is used in a wide range of applications, due to its high water ...

(1) Insufficient inhalation The reason is that the resistance in the suction line of the Rexroth piston pump is too high or the oil replenishment is insufficient. For example, the speed of the pump is too large, the liquid level in the oil tank is too low, the oil inlet pipe is leaking, and the oil filter is blocked. (2) The amount of leakage is too large The reason is the gap in the Rexroth piston pump ...

1) Preparation for cleaning. (1) Preparation of cleaning oil. The cleaning oil can be selected as Rexroth Rexroth hydraulic pump hydraulic system working oil or test oil for the machine to be cleaned. It is not allowed to use kerosene, gasoline, alcohol or steam as the cleaning medium, so as not to corrode the hydraulic components, pipelines ...