German binks pump binks model binks price

binks pumps operate by using impeller rotation to generate centrifugal motion in water. Before starting the pump, the pump casing and suction pipe must be filled with water. Then, start the motor to drive the pump shaft, causing the impeller and water to rotate at high speed. The water undergoes centrifugal motion, is thrown toward the outer edge of the impeller, and flows into the discharge pipe of the water pump through the flow channel of the volute casing.

binks pump structure composition

The basic structure of a centrifugal pump consists of six parts: impeller, pump body, pump shaft, bearing, sealing ring, and packing box. 1) The impeller is the core part of the centrifugal pump; it has high rotational speed and high output power. The blades on the impeller play a major role. The impeller must undergo a static balance test before assembly. The inner and outer surfaces of the impeller are required to be smooth to reduce friction loss of water flow. 2) The pump body, also known as the pump casing, is the main body of the water pump. It provides support and fixation and connects to the bracket where the bearings are installed. 3) The function of the pump shaft is to connect to the motor via a coupling and transmit the motor's torque to the impeller, making it the main component for transmitting mechanical energy. 4) Sliding bearings use transparent oil as lubricant; fill oil to the oil level line. Too much oil will seep out along the pump shaft, while too little will cause the bearing to overheat and burn out, leading to accidents! During water pump operation, the maximum bearing temperature is 85 degrees, and normal operating temperature is around 60 degrees. 5) The sealing ring is also known as the leakage reduction ring. 6) The packing box mainly consists of packing, water seal ring, packing sleeve, packing gland, and water seal pipe. The main function of the packing box is to seal the gap between the pump casing and the pump shaft, preventing water inside the pump from leaking out and air from entering the pump. It maintains the vacuum inside the water pump! When heat is generated by friction between the pump shaft and the packing, the water seal pipe supplies water to the water seal ring to cool the packing, ensuring normal operation of the water pump. Therefore, inspection of the packing box requires special attention during routine patrols of the water pump operation. The packing should be replaced after approximately 600 hours of operation.

binks pump maintenance

1) Compact structure, small size, and light weight: Composed of front cover, intermediate body, and rear cover made of aluminum alloy, gears made of alloy steel, and pressure plates made of aluminum alloy. Two DU bearings are press-fitted inside the front and rear covers respectively. DU material is an ideal bearing material for gear pumps, significantly extending the service life of gear pumps. 2) Reliable operation: The pressure plate is the main component for radial and axial pressure compensation, reducing bearing load and automatically adjusting the axial clearance of the gear pump, thereby effectively improving the performance indicators and operational reliability of the gear pump. GM5 and GPC4 series gear motors offer four structural configurations: single rotation without front bearing, double rotation without front bearing, single rotation with front bearing, and double rotation with front bearing. Gear motors with front bearings can withstand both radial and axial forces. 3) High speed and high pressure: Rotational speed ranges from 3000 to 4000 rpm, theoretical torque ranges from 17N.m (N·m) to 64N.m, and pressure can reach 20-25MPa. 4) Connection methods suitable for imported machinery and engineering equipment: Complies with SAE and national standard GB for installation flanges, shaft extensions, inlet, and outlet connections. Widely applicable to hydraulic systems in automobiles, tractors, engineering machinery, agricultural machinery, and other mechanical equipment.

binks pump working principle

The concept of a gear pump is very simple. Its most basic form consists of two gears of identical size meshing and rotating within a closely fitted casing. The interior of this casing resembles the shape of the number "8", with the two gears installed inside. The outer diameter and sides of the gears fit closely with the casing. Material from the extruder enters the space between the two gears at the suction inlet, filling this space. As the teeth rotate, the material moves along the casing and is finally discharged when the two teeth mesh. Gear pumps are also called positive displacement devices. Similar to a piston in a cylinder, when one tooth enters the fluid space of another tooth, the liquid and the tooth cannot occupy the same space simultaneously because liquids are incompressible. Thus, the liquid is mechanically squeezed out. Due to the continuous meshing of the teeth, this phenomenon occurs continuously, providing a continuous discharge volume at the pump outlet. The discharged volume per revolution is constant. As the drive shaft rotates uninterrupted, the pump discharges fluid continuously. The pump flow rate is directly related to the pump speed. In practice, there is a small amount of fluid loss within the pump because this fluid is used to lubricate the bearings and the sides of the gears. Furthermore, the pump body cannot have a gap-free fit, so the fluid cannot be discharged from the outlet 100%. Therefore, a small amount of fluid loss is inevitable, preventing the pump's operating efficiency from reaching 100%. However, the pump can still operate well, achieving an efficiency of 93% to 98% for most extruded materials. This pump is not significantly affected by changes in fluid viscosity or density during the process. If there is a damper, such as a filter screen or restrictor placed on the discharge side, the pump will push the fluid through them. If this damper changes during operation—i.e., if the filter becomes dirty or clogged, or if the back pressure of the restrictor increases—the pump will maintain a constant flow until the mechanical limit of the weakest component in the system is reached (a torque limiter is usually installed). The rotational speed of a pump is actually limited, primarily depending on the process fluid. If transferring oil, the pump can rotate at high speeds, but this limit increases significantly when the fluid is a high-viscosity polymer melt. It is crucial to fill the space between the two teeth on the suction inlet side with high-viscosity fluid. If this space is not fully filled, the pump cannot discharge an accurate flow rate. Therefore, the PV value (pressure × flow velocity) is another limiting factor and a process variable. Due to these limitations, gear pump manufacturers offer a range of products with different specifications and displacements (volume discharged per revolution). These pumps are matched to specific application processes to optimize system capacity and price.

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