Rexroth bidirectional hydraulic pump from Germany

The German ReXROTH hydraulic pump is a power component of the hydraulic system, driven by an engine or electric motor, which sucks in oil from the hydraulic tank, forms pressure oil, and discharges it to the actuator.

The following is the working principle of the German ReXROTH hydraulic pump:

Rexroth hydraulic pump is an energy conversion device that converts the rotational mechanical energy of an electric motor into hydraulic energy output. Rexroth hydraulic pumps operate based on the principle of sealing volume variation, hence they are generally referred to as positive displacement hydraulic pumps.

The pump body and plunger form a sealed volume, and the eccentric wheel is driven to rotate by the prime mover. When the eccentric wheel rotates half a circle downwards, the plunger moves downwards under the action of the spring, and the sealed volume gradually increases, forming a local vacuum. The oil in the oil tank, under the action of atmospheric pressure, opens the one-way valve and enters the sealed chamber to achieve oil suction; When the eccentric wheel continues to rotate for another half a circle, it pushes the plunger upward, gradually reducing the sealing volume. The oil is compressed by the plunger and generates pressure, causing the one-way valve to close. The oil opens the one-way valve and enters the system, which is called pressurized oil.

The cam is driven to rotate by an electric motor. When the cam pushes the plunger upwards, the sealing volume formed between the plunger and the cylinder decreases, and the oil is squeezed out of the sealing volume and discharged to the required place through the one-way valve. When the cam rotates to the descending part of the curve, the spring forces the plunger downwards, forming a certain degree of vacuum, and the oil in the tank enters the sealed volume under the action of atmospheric pressure. The cam continuously lifts and lowers the plunger, causing the sealing volume to periodically decrease and increase, and the pump continuously absorbs and discharges oil.

The ReXROTH hydraulic pump from Germany is a power component of the hydraulic system. Its main function is to provide pressure oil to the hydraulic system, converting the mechanical energy output from the prime mover (such as the engine) into hydraulic pressure energy.

The following are some characteristics of the German ReXROTH hydraulic pump:

featuredescription

flow regulationThe flow rate of the pump is directly proportional to its speed and displacement, and can be infinitely adjusted by adjusting the angle of the inclined plate

structural designCoaxial structure can form a combination pump, position constrained return structure, spherical flow distribution, and plunger tilted around the main shaft

Variable capabilityStepless variable, adjustable output flow according to system requirements

Inhalation capacityExcellent suction capacity ensures stable operation of the pump

control responseControl the corresponding time to be short and improve the system's response speed

noise levelLow noise design to reduce noise pollution in the working environment

lifespanLong lifespan, reduced maintenance costs and downtime

Power to weight ratioExcellent power to weight ratio improves the energy efficiency of the system

modular designModular design, easy to install, maintain, and upgrade

These features enable the German ReXROTH hydraulic pump to perform excellently in various industrial applications, meeting the needs of different industries for hydraulic systems.

The German ReXROTH hydraulic pump is a power component of the hydraulic system, driven by an engine or electric motor, which sucks in oil from the hydraulic tank, forms pressure oil, and discharges it to the actuator.

The following is the working principle of the German ReXROTH hydraulic pump:

Rexroth hydraulic pump is an energy conversion device that converts the rotational mechanical energy of an electric motor into hydraulic energy output. Rexroth hydraulic pumps operate based on the principle of sealing volume variation, hence they are generally referred to as positive displacement hydraulic pumps.

The pump body and plunger form a sealed volume, and the eccentric wheel is driven to rotate by the prime mover. When the eccentric wheel rotates half a circle downwards, the plunger moves downwards under the action of the spring, and the sealed volume gradually increases, forming a local vacuum. The oil in the oil tank, under the action of atmospheric pressure, opens the one-way valve and enters the sealed chamber to achieve oil suction; When the eccentric wheel continues to rotate for another half a circle, it pushes the plunger upward, gradually reducing the sealing volume. The oil is compressed by the plunger and generates pressure, causing the one-way valve to close. The oil opens the one-way valve and enters the system, which is called pressurized oil.

The cam is driven to rotate by an electric motor. When the cam pushes the plunger upwards, the sealing volume formed between the plunger and the cylinder decreases, and the oil is squeezed out of the sealing volume and discharged to the required place through the one-way valve. When the cam rotates to the descending part of the curve, the spring forces the plunger downwards, forming a certain degree of vacuum, and the oil in the tank enters the sealed volume under the action of atmospheric pressure. The cam continuously lifts and lowers the plunger, causing the sealing volume to periodically decrease and increase, and the pump continuously absorbs and discharges oil.

The ReXROTH hydraulic pump from Germany is a power component of the hydraulic system. Its main function is to provide pressure oil to the hydraulic system, converting the mechanical energy output from the prime mover (such as the engine) into hydraulic pressure energy.

The following are some characteristics of the German ReXROTH hydraulic pump:

featuredescription

flow regulationThe flow rate of the pump is directly proportional to its speed and displacement, and can be infinitely adjusted by adjusting the angle of the inclined plate

structural designCoaxial structure can form a combination pump, position constrained return structure, spherical flow distribution, and plunger tilted around the main shaft

Variable capabilityStepless variable, adjustable output flow according to system requirements

Inhalation capacityExcellent suction capacity ensures stable operation of the pump

control responseControl the corresponding time to be short and improve the system's response speed

noise levelLow noise design to reduce noise pollution in the working environment

lifespanLong lifespan, reduced maintenance costs and downtime

Power to weight ratioExcellent power to weight ratio improves the energy efficiency of the system

modular designModular design, easy to install, maintain, and upgrade

These features enable the German ReXROTH hydraulic pump to perform excellently in various industrial applications, meeting the needs of different industries for hydraulic systems.

The use and maintenance of Rexroth hydraulic pumps in Germany include the following aspects:

Correct selection and use of hydraulic oil: For hydraulic pump systems, the correct selection and use of hydraulic oil is very important.

Regular inspection and maintenance: When using a plunger pump for oil supply, the operator needs to check the plunger pump 1-2 times a day to check if the hydraulic pump is operating with normal sound. If it is found that the speed of the hydraulic cylinder has decreased or the car is stuck, the oil replenishment pump should be disassembled and inspected to check whether there are scratches on the impeller edge and whether the clearance between the internal gear pump is too large.

Keep hydraulic oil clean: The higher the cleanliness of hydraulic oil, the longer the service life of hydraulic pumps. Therefore, it is necessary to regularly replace and filter hydraulic oil, as well as use appropriate oil filters.

Maintenance of bearings: The important component of a plunger pump is the bearing. If there is clearance in the bearing, it cannot guarantee the normal clearance of the three pairs of friction pairs inside the hydraulic pump, and it will also damage the thickness of the static hydraulic support oil film of each friction pair, reducing the service life of the plunger pump bearing. Therefore, it is necessary to regularly check the condition of the bearings and replace them if necessary.

Maintenance of plungers and cylinder bodies: plungers and cylinder bodies are key components of hydraulic pumps, and their wear needs to be regularly checked and repaired or replaced if necessary. For example, tools such as grinding rods, coordinate boring machines, or reamers can be used to repair cylinder holes.

Maintenance of seals: Aging or damage to seals can cause internal leakage of hydraulic pumps, thereby affecting their performance and lifespan. Therefore, it is necessary to regularly check the condition of the seals and replace them if necessary.

Using a frequency converter to save energy: In the actual production process, plunger pumps usually adjust their working state based on pressure or flow rate during operation. When the actual pressure is greater than the required pressure, it is adjusted through an overflow valve to maintain a stable working pressure and allow the overflow valve to release the excess. And the motor keeps running at full speed repeatedly, with no change in power consumption. Implement automated control to save energy consumption. This adjustment method can reduce the operating energy consumption of the plunger pump, and the energy-saving effect can reach more than 30%.

The above is the relevant content on the use and maintenance of Rexroth hydraulic pumps in Germany. We hope it is helpful to you.