Introduction to Bucher Gear Pump in Germany

Introduction to Bucher Gear Pump in Germany

The Bucher gear pump gear has high hardness and strength after heat treatment, and is installed together with the shaft in a replaceable shaft sleeve for operation. The lubrication of all parts inside the pump is automatically achieved through the use of the output medium during pump operation. There are well-designed oil discharge and return grooves inside the pump, which minimize the torque force that the gears bear during operation, resulting in low bearing load, minimal wear, and high pump efficiency. The pump is equipped with a safety valve as overload protection. The full reflux pressure of the Bucher gear pump safety valve is 1.5 times the rated discharge pressure of the pump, and can also be adjusted according to actual needs within the allowable discharge pressure range. However, please note that this safety valve cannot be used for long-term operation as a pressure reducing valve. If necessary, it can be installed separately on the pipeline. When viewed from the extended end of the main shaft towards the pump, it rotates clockwise. The gear pump consists of left and right pump covers, main and shaft sleeves, pump body, passive gear shaft, oil seal and other parts. When the gear of Bucher gear pump rotates, the volume of the oil inlet chamber increases from small to large due to the continuous disengagement of the meshing teeth. Forming a vacuum, the liquid is sucked in, and the toothed valley is carried to the oil chamber. The volume of the oil outlet chamber increases and decreases due to the continuous engagement of the meshing teeth, and the oil is compressed and discharged, thus achieving the purpose of transporting oil.

According to the laws of proportionality and cutting, the Bucher gear pump can change the characteristic curve of stainless steel gear pumps by changing the pump speed and structure, thus achieving the purpose of regulating flow rate. However, for pumps that are already in operation, changing the pump structure is not very convenient, and due to the change in pump structure, the universality of the pump is reduced. Although it is economical and convenient to adjust the flow rate at some times, it is rarely used in production. Here we only analyze the methods of adjusting the flow rate by changing the speed of the stainless steel gear pump. Bucher gear pumps can be operated in parallel or series with stainless steel gear pumps. Using two stainless steel gear pumps of the same model in parallel, although the pressure head does not change much, increases the total conveying flow rate, and the overall efficiency of the parallel pump is the same as that of a single pump; When the stainless steel gear pump is connected in series, the total pressure head increases, and the flow rate of the Bucher Bucher gear pump does not change much. The overall efficiency of the series pump is the same as that of a single pump.

When one tooth enters the fluid space of another tooth, the liquid is mechanically squeezed out of the B Bucher gear pump. Because liquids are incompressible, liquids and teeth cannot occupy the same space at the same time, thus eliminating liquids. Due to the continuous meshing of the teeth, this phenomenon occurs continuously, thus providing a continuous discharge at the pump outlet. The amount discharged is the same for each rotation of the pump. As the drive shaft rotates continuously, the Bucher Bucher gear pump also continuously discharges fluid. The flow rate of a pump is directly related to its rotational speed. For fluids with changes in viscosity or density during the process, this pump will not be greatly affected. If there is a damper, such as placing a filter or a limiter on the discharge side, the pump will push the fluid through them.

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