German B HEPWORTH pump B HEPWORTH model B HEPWORTH price

B HEPWORTH pump is a typical positive displacement hydraulic machine, driven by a prime mover, converting input mechanical energy into pressure energy of the liquid, and then inputting it into the system in the form of pressure and flow. It is the power source of the hydraulic system. Since it can transport liquids under high pressure, it is widely used in various industries in industrial production and daily life, such as water conservancy, construction, and energy. In addition, it is also widely used in shipbuilding, oil extraction, and loaders.

B HEPWORTH pump structural forms

Plunger pumps are divided into two representative structural forms: axial plunger pumps and radial plunger pumps. Since radial plunger pumps are a new type of high-efficiency pump with high technical content, with the acceleration of localization, radial plunger pumps will inevitably become an important part of the application field of plunger pumps. A radial plunger pump is a plunger pump in which the reciprocating motion direction of the piston or plunger is perpendicular to the drive shaft. Working principle of radial plunger pump: The drive torque is transmitted from the drive shaft to the star-shaped hydraulic cylinder rotor through a cross coupling, and the stator is not subject to other lateral forces. The rotor is mounted on the distribution shaft. The radially arranged plungers located in the rotor closely adhere to the eccentric stroke stator through hydrostatically balanced slippers. The plunger is connected to the slipper via a ball joint and locked with a retaining ring. Two retaining rings hold the slippers against the stroke stator. When the pump rotates, it presses against the inner surface of the stator relying on centrifugal force and hydraulic pressure. When the rotor rotates, due to the eccentricity of the stator, the plunger performs reciprocating motion, and its stroke is 2 times the eccentricity of the stator. The eccentricity of the stator can be adjusted by two plungers positioned radially opposite each other on the pump body. Oil inlet and outlet occur through flow channels in the pump body and distribution shaft, controlled by the suction port on the distribution shaft. The hydraulic pressure generated in the pump body is absorbed by the hydrostatically balanced surface. The hydrostatic balance of the friction pair adopts an over-balance pressure compensation method, forming open-loop control. The bearings supporting the drive shaft only serve a supporting role and are not subject to other external forces. In hydraulic systems: Axial plunger pumps operate by utilizing volume changes generated by the reciprocating motion of plungers parallel to the transmission shaft within plunger bores. Since the plungers and plunger bores of plunger pumps are circular parts, they can achieve very high precision fits during machining.

B HEPWORTH pump operating mode

During operation, under the action of the cam on the fuel injection pump camshaft and the plunger spring, the plunger is forced to perform upward and downward reciprocating motion, thereby completing the fuel pumping task. The fuel pumping process can be divided into the following three stages. Conclusion: Through the above discussion, the following conclusions are drawn: (1) The total stroke L of the plunger's reciprocating motion is constant, determined by the cam lift. (2) The fuel supply volume per cycle depends on the fuel supply stroke; the fuel supply stroke is variable and not controlled by the camshaft. (3) The start moment of fuel supply does not change with variations in the fuel supply stroke. (4) Rotating the plunger can change the end moment of fuel supply, thereby changing the fuel supply volume. 3. Domestic series plunger-type fuel injection pumps: Domestic series plunger pumps mainly include A, B, P, Z, and Series I, II, III, etc. Serialization is based on different fuel supply requirements according to the single-cylinder power range of diesel engines, using plunger stroke, pump cylinder center distance, and structural form as the basis, combined with plunger diameters of different sizes to compose several types of fuel injection pumps with unequal fuel supply volumes within one working cycle, to meet the needs of various diesel engines. The working principles and structural forms of domestic series fuel injection pumps are basically the same. Taking the A type pump as an example, the structure and working principle of the plunger-type fuel injection pump are introduced. The plunger pump consists of four main parts: pumping element, fuel quantity adjustment mechanism, transmission mechanism, and pump body. It features microprocessor intelligent control, LCD display, and communication with computers, offering characteristics such as stable working pressure, low pulsation, and convenient operation. It is widely used in biochemistry, pharmaceuticals, chemicals, environmental protection, and other industries, meeting the requirements of these industries for continuous constant-pressure and constant-flow liquid transport.

B HEPWORTH pump maintenance

(1) Inspect the plunger for scratches and corrosion; replace with a new part if necessary. (2) Check the fit of the plunger assembly. Insert the plunger end into the plunger barrel and tilt it at approximately 60°. If the plunger slides down slowly under its own weight, the fit is good. (3) Check the sealing of the plunger assembly. Hold the plunger barrel, block the oil inlet at the top and side of the plunger with two fingers, and pull out the plunger with the other hand. Significant suction felt, and the plunger immediately retracting to its original position upon release, indicates good sealing of the plunger assembly; otherwise, replace the plunger assembly. (4) Inspect the decompression band of the delivery valve assembly for wear, steps, or scratches; replace if necessary. (5) Check the fit of the delivery valve assembly. Block the lower hole of the delivery valve with one finger, gently press the delivery valve downward with another finger, and observe if it automatically springs back to its original position when the finger is released from the upper end. This indicates good sealing of the delivery valve assembly; otherwise, replace the delivery valve assembly. (6) Inspect the tappet body. The standard clearance between the injection pump body and the tappet body is 0～0.03mm; if it exceeds 0.2mm, replace the parts. (7) Check the clearance between the plunger flange and the groove of the control sleeve, which should be 0.02～0.08mm; if it exceeds 0.12mm, the control sleeve must be replaced.

Weidou Intelligent Technology professionally sells German B HEPWORTH plunger pumps, B HEPWORTH gear pumps, B HEPWORTH diaphragm pumps, B HEPWORTH centrifugal pumps, B HEPWORTH plunger pumps, B HEPWORTH vacuum pumps, B HEPWORTH screw pumps, B HEPWORTH submersible pumps, B HEPWORTH peristaltic pumps, B HEPWORTH lubrication pumps, B HEPWORTH vane pumps, B HEPWORTH metering pumps, B HEPWORTH hand pumps, B HEPWORTH drum pumps, B HEPWORTH lobe pumps, B HEPWORTH booster pumps, B HEPWORTH liquid pumps, B HEPWORTH air pumps, all originally imported from Germany. Welcome customers to inquire and order.