The selling points of P50 gear pump are in these aspects

P50 gear pump

The P50 gear pump is usually referred to as a cast iron gear pump from Parker's commercial line. Here is its related introduction:

First, Features

1. Material and structure: mostly made of cast iron, with good strength and wear resistance. Structurally, it belongs to bearing series gear pumps, with various configurations and connections to meet the installation needs of different equipment.

2. Performance parameters: different models of P50 gear pumps differ in parameters such as flow, pressure and speed. Generally speaking, it can adapt to a certain range of working pressure and speed, which can meet the demand for hydraulic power in a variety of industrial application scenarios.

Second, the working principle

Is the same as the common external gear pump working principle. There is an external gear in the pump casing, the gear before and after the cover with the end cap, and the teeth of each groove to form a sealed working chamber. When the active gear drives the follower gear to rotate, the gear teeth in the suction chamber are gradually disengaged, the sealing chamber volume increases, and the pressure drops to absorb the oil; the gear teeth on the side of the compression chamber are gradually meshed, the sealing chamber volume decreases, and the oil is squeezed out, and the pressure rises, realizing the delivery of hydraulic oil.

Third, application fields

1. Industrial field: in the injection molding machine, die-casting machine and other equipment, for its hydraulic system to provide power to achieve a variety of equipment action. In metal processing equipment, such as the hydraulic transmission system of machine tools, can be used to drive the movement of the table, tool feeding and so on.

2. Engineering machinery: widely used in excavators, loaders, etc., to provide power for its hydraulic system to realize the excavation, loading, lifting and other actions. In cranes, it is used to drive the hydraulic system of lifting, luffing, slewing and other mechanisms.

3. Vehicle field: in the power steering system of automobile, provide hydraulic power for steering power. In the ship's hydraulic system, used to drive the ship's rudder, anchor and other equipment. In agricultural machinery, such as the hydraulic suspension system of the tractor, can be used to control the lifting and plowing depth of agricultural tools.

Fourth, how to improve the volumetric efficiency of P50 gear pumps:

1. Optimize the seal and fit clearance

Decrease the clearance in the key parts: gear and pump casing, gear and end cover, gear tooth top and the inner wall of the pump body, etc. The clearance is too large, which will lead to an increase in leakage. By improving the machining accuracy (such as grinding, fine grinding), these gaps will be controlled in the design of the smallest reasonable range (usually micron level), can effectively reduce the leakage.

Improve the sealing structure: check and replace the worn seals (such as O-ring, wear plate seal), to ensure reliable sealing; some models can be used to pressure-balanced wear plate, the use of hydraulic oil pressure to make the wear plate and the gear end face close to reduce the leakage of the end face.

2. Control the working conditions

To maintain the appropriate oil temperature: oil temperature is too high will make the hydraulic oil viscosity decline, exacerbating the leakage; oil temperature is too low will increase the flow resistance. Need through the cooling system (such as radiators) or heating devices, the oil temperature control in the recommended range (generally 30 ~ 50 ℃), to maintain stable oil viscosity.

Avoid overpressure operation: P50 gear pumps have a rated working pressure, overpressure will lead to excessive force on the sealing surface, increased clearance, and a sharp increase in leakage. It is necessary to control the system pressure through the relief valve, etc., so as not to exceed the rated pressure of the pump.

3. Maintenance and care

Regular cleaning of hydraulic oil: impurities in the fluid will wear gears, pump casing and other parts, resulting in increased clearance. Regular replacement of hydraulic oil and filters is required to maintain fluid cleanliness and reduce abrasive leakage.

Timely repair of worn parts: If the gear tooth surface, pump casing inner wall, end caps, etc., wear, scratches, should be repaired or replaced in a timely manner, to restore the matching accuracy, to avoid increased leakage due to parts failure.

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