Rexroth vane pump speed selection
The flow rate of Rexroth vane pump has a linear relationship with the speed, relative to the low-speed screw pump, although the high-speed screw pump can increase the flow rate and head, but the power is significantly increased, the high speed accelerates the wear between the rotor and the stator, and the progression pump must fail prematurely, and the stator and rotor length of the high-speed screw pump is very short, and it is easy to wear, thus shortening the service life of the screw pump.
The speed is reduced by the deceleration mechanism or the stepless speed regulation mechanism, so that the speed is kept within a reasonable range of less than 300 revolutions per minute, and the service life can be extended several times compared with the high-speed operation of the screw pump.
The quality of Rexroth vane pumps
Now there are many types of screw pumps on the market, relatively speaking, the imported screw pumps are reasonably designed and made of excellent materials, but the price is higher, the service is not in place, the price of accessories is high, and the order cycle is long, which may affect the normal operation of production.
Most of the domestic production imitates imported products, the product quality is uneven, in the selection of domestic products, in the consideration of its cost performance, the selection of low speed, long lead, transmission parts of the material is excellent, the rated life of the long products.
Rexroth vane pumps ensure that debris does not enter the pump body
The solid debris mixed in the wet sludge will cause damage to the rubber stator of the screw pump, so it is very important to ensure that the debris does not enter the cavity of the pump.
Rexroth vane pump vane pump to avoid material cut-off
Rexroth vane pump is never allowed to run in the case of material breaking, once it happens, the rubber stator is burned out due to dry friction, instantaneously high temperature and burns out, therefore, the crusher is intact, and the grid is one of the necessary conditions for the normal operation of the screw pump, for this reason, some screw pumps are also installed on the pump body to stop the material stop, when the material is broken, due to the self-priming function of the screw pump, the cavity will produce vacuum, and the vacuum device will make the screw pump stop running.
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Common Causes and Troubleshooting Methods of Hydraulic Pumps(9-16)
9. Cause of failure: "left-handed" oil pump is installed with "right-handed", resulting in damage to the skeleton oil seal;
Exclusion method: the "right-handed" pump cannot be installed on the "left-handed" machine, otherwise the skeleton oil seal will be damaged;
10. Cause of failure: The hydraulic oil is too dirty.
Exclusion Method: Cleaning System, ...
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Rexroth supports Akcurate & CIMT from dental implant products to body parts
How can you transform a high-speed milling machine for dental products into a high-performance automatic machining system for the automotive industry? The Göttingen-based mechanical engineering company Akcurate & CIMT took up the challenge and solved it with a complete solution from Bosch Rexroth.
Dental implant ...
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Rexroth hydraulic pumps - precautions for the use of hydraulic pumps
1. When the hydraulic pump is started, it should be jogged several times, and after the oil flow direction and sound are normal, it should run under low pressure for 5-10min, and then put into normal operation. Before the piston pump is started, the pump must be filled with clean working oil through the oil drain port on the casing.
2. The viscosity of the oil is affected by the temperature ...
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Rexroth hydraulic pump - what are the precautions for the use of hydraulic pump?
1. The speed and pressure of the pump should not exceed the specified value, and long-term use should be avoided, otherwise the life of the hydraulic pump will be affected.
2. When the hydraulic pump is started, it should be jogged several times, and after the oil flow direction and sound are normal, it should run under low pressure for 5-10min, and then put into normal operation. ...
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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's new IH04 E features safety features in accordance with PLe Category 4
Thanks to the die pad function of the new standard IH04 E standard module from Bosch Rexroth, engineers can use the most common switching systems. These modules are DGUV-tested and certified with a standardized safety concept and are able to meet general safety requirements at the lowest possible cost. Users can optionally set such ...
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What do I need to pay attention to when assembling a Rexroth gear oil pump?
(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 ...
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How to select Rexroth solenoid valve and its selection points
1. Select the solenoid valve according to the pipeline parameters: diameter specification (i.e., DN) and interface mode
1. Determine the diameter (DN) size according to the inner diameter size or flow requirements of the on-site pipeline.
2. Interface mode, generally DN50 to choose flange interface, DN50 can be freely selected according to user needs...
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Rexroth Hydraulic Pump - Common maintenance knowledge of hydraulic piston pumps
1. Hydraulic pump:
Straight shaft swash plate piston pumps are divided into two types: pressure oil supply type and self-priming oil type. Most of the pressure oil supply hydraulic pumps use oil tanks with air pressure, and there are also hydraulic pumps with oil replenishment sub-pumps to provide pressure oil to the oil inlet of the hydraulic pump. The self-priming oil energy of the self-priming hydraulic pump ...
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Bosch Rexroth acquires motion control specialist Elmo Motion Control Ltd
Bosch Rexroth has increased its investment in factory automation to expand its business scope and decided to acquire motion control specialist Elmo Motion Control Ltd. Headquartered in Petatikova, Israel, the company develops and produces electrical high-end products suitable for industrial automation.
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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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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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DAMBACH has developed a new shuttle system based on Rexroth's compact control system
DAMBACH has developed a new shuttle system based on the compact control system from Bosch Rexroth
A leap forward in the dynamics and efficiency of high-level compartment warehouses
Tried and tested
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The working principle of the Rexroth vane pump PV7 series
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Rexroth | The plastics industry is at the forefront of sustainable drives
Guido Hettwer, Director of the Industrial Hydraulics Division, Bosch Rexroth (Photo: Bosch Rexroth AG)
Plastics machine builders have always been pioneers in new drive concepts that continuously improve performance and energy efficiency. For example, it was the first injection molding machine to open ...
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Precautions for the use of Rexroth hydraulic pump hydraulic oil
(1) Make sure that the hydraulic oil of Rexroth hydraulic pump is clean and prevent debris from entering the oil. Clean the tank thoroughly when changing the oil and filter it when refueling.
(2) Do not paint the inner wall of the oil tank to prevent precipitation in the oil.
(3) In order to prevent air from entering the hydraulic system, the oil return nozzle should be lower than the tank fluid.
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Rexroth hydraulic pump - introduction to the characteristics of proportional valves
Proportional control valve is a kind of control valve that continuously and proportionally controls the flow, pressure and direction of the hydraulic system according to the input electrical signal, and its output flow and pressure can not be affected by load changes.
Compared with ordinary hydraulic components, proportional valves have the following characteristics:
（ ...
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Basic understanding of Rexroth solenoid valves
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.
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Precautions for Rexroth pressure reducing valves
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 ...
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A brief introduction to Rexroth hydraulic motors
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.
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