Detailed explanation of installation and connection methods for hydraulic gear pumps

A、 Connection form between gear pump and prime mover
1. Piston connection Piston connection refers to the direct connection of a gear pump to a prime mover, characterized by a simple and compact structure, suitable for low-power pumps and machine equipment.
2. Flange connection Flange connection is a commonly used connection method between gear pumps and prime movers, characterized by stable connection, good sealing, and easy assembly. When connecting, it is necessary to choose the appropriate flange size and flange standard to ensure the reliability of the connection.
3. Axis connection Shaft connection refers to the connection between a gear pump and a prime mover through bearings, which has the advantages of simple connection, easy disassembly and installation. But it is necessary to pay attention to the adjustment of bearing size and axial clearance. In addition, the connection between the gear pump and the prime mover can also be achieved through elastic shaft connection, belt transmission, and other methods.

B、 Installation and positioning method of gear pump
There are generally three installation methods for gear pumps: bracket installation, flange installation, and plunger installation. Among them, bracket installation refers to the direct installation of the gear pump on the bracket, while flange installation refers to the connection between the pump and the prime mover through a flange. Piston installation refers to the direct connection between the gear pump and the prime mover. The choice of installation method depends on the specific application situation. When installing the gear pump, the following steps need to be followed:
1. Clean the installation position and gear pump body to ensure that the installation surface is flat and free of dirt.
2. Fix the installation position and accurately position the gear pump, ensuring that the inlet and outlet positions of the pump are correct.
3. Install the gear pump in place according to the selected installation method.
4. Adjust the pump, including adjusting the pump's adjustment screws, accessories, valves, etc.


The above:Working principle of double suction impeller gear pump