1. Poor assembly of Rexroth hydraulic pump leads to abnormal heating of the hydraulic pump
1. The courtyard of Litule hydraulic pump is not suitable, (for example, the plunger and cylinder, blade and rotor groove, sperm and rotor, gear, side plate, etc. are too small, and the sliding part may be overheated.) 2. The assembly quality of Rexroth hydraulic pump is not good, the coaxiality of the transmission part can not meet the technical requirements, and the hydraulic pump has a special phenomenon when working, so it is recommended to open the rough satin and wait for the stump to slip 3. The bearing quality on the Rexroth hydraulic pump is poor or damaged during assembly, or the hydraulic pump is not cleaned up when it is installed, resulting in the hydraulic pump can not exert a particularly large force when it is started.
4. The lubricating oil of the hydraulic pump through the bearing is not smooth, and the plug of the oil return port is not opened (not handed over, or the channel is not cleaned, which may produce dirty oil.
Second, the oil quality of Rexroth hydraulic pump is not good, resulting in abnormal heating of the hydraulic pump
1. The characteristics of the liquid viscosity and temperature used in Rexroth hydraulic pump are not good, and the viscosity has changed greatly during use.
2. The hydraulic oil used contains a lot of water, and the lubrication of the hydraulic oil is not good, resulting in abnormal heating of the hydraulic pump.
3. The oil of the hydraulic pump has not been replaced for a long time or the hydraulic oil used is seriously polluted, resulting in the heating of the hydraulic pump.
3. Rexroth hydraulic pump pipeline failure causes the hydraulic pump to heat up
1. The oil pipe connected to the Rexroth hydraulic pump is flattened or blocked, so that the oil does not leak and the pump becomes hot.
2. The diameter of the drainage pipe of the Rexroth hydraulic pump is too thin, and the hydraulic pump cannot discharge the liquid smoothly and cannot meet the requirements of oil discharge.
3. The diameter of the suction pipe of the Rexroth hydraulic pump is small, and the oil suction resistance of the hydraulic pump is large, which can not absorb oil normally, resulting in the heating of the oil pump.
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What are the differences between Rexroth proportional valves and Rexroth servo valves?
First of all, there are no strict regulations and explanations for the difference between Rexroth proportional valves and Rexroth servo valves, which is the main reason why most people do not understand the difference between the two.
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Rexroth oil pump cartridge replacement operation
Rexroth oil pump is a hydraulic system that converts the mechanical energy of the prime mover (motor, internal combustion engine, etc.) into liquid pressure energy.
Rexroth oil pumps can be divided into two types: positive displacement and non-volumetric type. The non-volumetric type has centrifugal pumps, axial flow pumps, etc., and uses high-speed rotating impellers to produce true ...
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How to adjust Rexroth A11V hydraulic pump?
In general, there are two ways to adjust it
1. Add a speed regulating valve at the outlet of the pump to adjust the output speed of the oil volume, so as to achieve the amount of oil used
2. Add a variable pump with oil volume, adjust the angle of the oil pan to achieve the input quantity of changing the oil volume. This method compares ...
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Rexroth hydraulic pumps – energy efficiency comparison of four pump control modes
1. Quantitative pump + relief valve system
This is the most basic and low-cost hydraulic pump system, because the displacement of the pump is fixed, and the output flow is fixed under the condition that the speed of the prime mover is unchanged; A part of the flow drives the load, and the excess flow is returned to the tank through the relief valve, and the overflow ...
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Rexroth autonomous mobile robots help automate intralogistics
Bosch Rexroth autonomous mobile robots automate intralogistics and identify the internal roads of the factory themselves
The highest level of safety to avoid pedestrians and objects
Interactive touch screen for easy operation
Compatible with VDA 5050
Touch screen and 3D obstacle detection ...
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The principle and method of Rexroth hydraulic pump oil quantity adjustment
1. The principle of Rexroth hydraulic pump oil volume adjustment
Generally, in order to adapt to the specific requirements of the diesel engine under the load, the fuel injection pump must be able to adjust the maximum fuel supply to the zero oil supply range of the whole machine when the fuel supply is running.
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Rexroth vane pump working principle and classification introduction
How Rexroth vane pumps work:
1. Single-acting vane pump
The pump is composed of parts such as rotor 1, stator 2, blade 3, oil distribution pan and end cover. The inner surface of the stator is a cylindrical hole. There is eccentricity between the rotor and stator. The blades slide flexibly in the rotor slots ...
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Precautions for the installation of Rexroth pressure reducing valves
1. When installing, the tap water pressure reducing valve should be installed vertically on the tap water pipeline.
2. The arrow on the tap water pressure reducing valve must be consistent with the arrow on the pipeline.
3. The position of the installation of the pressure reduction method must be greater than 4 meters from the valve outlet.
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Rexroth Hydraulic Pumps – How Does a Hydraulic Pump Work?
In modern construction machinery, basically inseparable from hydraulic working devices, even if the main working devices do not use hydraulic equipment, usually need hydraulic systems to achieve some auxiliary work, hydraulic pressure is so important, and our life and work is very close.
Image
But...
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A detailed explanation of the alphanumeric meaning of the Rexroth piston pump A10VSO model
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 ...
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Rexroth hydraulic pump - common faults and solutions of hydraulic pumps
1. The hydraulic oil pump cannot absorb oil or have no pressure.
Causes
1. The rotation direction of the prime mover and the oil pump is inconsistent.
Cleaning method: correct the rotation direction of the prime mover.
2. The oil pump transmission key falls off.
Elimination: De novo transmission key.
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Rexroth Hydraulic Pumps – Oil trapping and radial forces in gear pumps
During the meshing process of the gear pump, the number of gear pairs meshed at the same time should be more than one pair, that is, the overlap coefficient ε should be greater than 1 (ε=1.4) to work normally. The oil left between the teeth is trapped in an enclosed space formed by two pairs of teeth meshing at the same time, and the volume of this space will be ...
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Rexroth proportional valve repair and replacement steps
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.
2: Check the fatigue of all individual parts of the proportional valve, grinding ...
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Rexroth hydraulic pumps – the scope of application of hydraulic pumps
1. In the mining and metallurgical industry, the pump is also the most used equipment. Mines need to be drained by pumps, and in the process of beneficiation, smelting and rolling, pumps are needed to supply water first.
2. In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, tertiary pumps, thermal power plants need a large number of boilers ...
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Areas of application for Rexroth hydraulic pumps
Rexroth hydraulic pumps have a wide variety of applications and are available in all walks of life. In terms of pump performance, there are two types of pumps: giant pumps and micro pumps. Giant pumps can reach flow rates of hundreds of thousands of cubic meters per hour, while micro pumps can reach less than tens of milliliters per hour. Judging by the pressure of the pump, it can be ...
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Rexroth Relief Valve - How does the relief valve adjust the pressure?
1. Constant pressure overflow: In the throttling adjustment system of the quantitative pump, the fixed pump provides a constant flow rate.
2. When the system pressure increases, the flow demand decreases.
3. At this time, the safety valve is opened, so that the excess flow is returned to the oil tank to ensure the inlet pressure of the safety valve.
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Bosch Rexroth presents the new Heglon drive, which has been specially developed for rubber machinery
At the International Rubber Congress 2022 in Nuremberg, Bosch Rexroth presents a new Heglon drive specially developed for rubber machinery. It is designed to significantly reduce energy consumption and thus CO2 emissions in daily operations. Similar to traditional electromechanical drives, the pre-assembled ...
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Rexroth A10VO series variable piston pump structure description
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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DAMBACH has developed a new shuttle system based on Rexroth's compact control system
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Introduction to the advantages of Rexroth piston pumps
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 ...
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