ZHANGFA HYDRAULIC chat HYDRAULIC gear pump basic theory and calculation

There have been many mechanical calculations, but not so practical, this article mainly gear pump industry workers for a simple theory, easy to read and understand.

 

The hydraulic gear pump includes the suction hydraulic gear pump and the discharge hydraulic gear pump. The hydraulic gear pump depends on the pressure difference between the liquid above and below the hydraulic gear pump when it is opened and closed.

 

 

The role of the hydraulic gear pump is to take turns to the oil suction pipe, and the discharge pipe in time with the hydraulic cylinder body connected or separated, hydraulic gear pump usually consists of hydraulic gear pump seat, hydraulic gear pump plate, spring, production process restrictor and other parts. Reciprocating suction and discharge of hydraulic gear pump is mostly automatic hydraulic gear pump, only in the output of high viscosity liquid, in order to ensure the timely opening and closing of the hydraulic gear pump and accurate action, the use of forced hydraulic gear pump. Automatic hydraulic gear pump is one-way reverse hydraulic gear pump, it is open on the hydraulic difference, and by the weight of the spring or force closed, automatic hydraulic gear pump has two forms, respectively, is the spring automatic hydraulic gear pump, and the weight of the hydraulic gear pump.

 

 

1. Weight hydraulic gear pump is also known as "self-weight hydraulic gear pump" weight hydraulic gear pump is mostly ball hydraulic gear pump structure is suitable for the flow is small reciprocating relatively low number of cases, generally < 160min.

 

2 disc hydraulic gear pump it is hydraulic gear pump plate and hydraulic gear pump seat metal ring surface, contact for sealing or sealing ring contact with non-metallic spring to achieve sealing.

 

 

In addition to the ball hydraulic gear pump, usually are made into spring hydraulic gear pump in order to reduce the hydraulic gear pump and guarantee the normal work of the hydraulic gear pump, hydraulic gear pump in a "self-cleaning" role is sealed, can need not add spring, hydraulic gear pump load as a result of insufficient or hydraulic gear pump due to reasons such as need to add the spring for horizontal motion.

The above:  Analysis of the Competition between Piston Pump Manufacturer's Products and Piston Pump