Currently, there are three types of hydraulic pumps used in the Chinese market: gear hydraulic pumps, vane hydraulic pumps, and piston hydraulic pumps. This article will introduce the hydraulic pumps used in rotary drilling rigs.#drilling and boring machine#
Rotary drilling rigs typically use either gear pumps or piston pumps as their main pumps. Gear pumps can normally reach a pressure of 25 MPa; piston pumps normally reach a pressure of no less than 34 MPa, and can reach 17 MPa at idle. Because different rotary drilling rigs use different hydraulic pumps, the required hydraulic oil varies. For a standard gear pump, ordinary grease-based hydraulic oil is sufficient. Its working principle involves the main unit driving the gears through gears and bushings, ensuring high sealing, and drawing oil into the pump to create high-pressure oil, thus performing work. Piston pumps require very high-purity grease, free of any impurities; 68# anti-wear hydraulic oil is recommended. The piston pump works by using power to rotate the piston shaft, drawing in hydraulic oil and creating high-pressure oil to perform work.#drilling and boring machine#
Gear pumps have lower production costs and lower maintenance costs, making them more suitable for mass-market applications. Piston pumps have higher initial costs and higher maintenance costs. Therefore, the choice of main pump depends on the specific needs of the rotary drilling rig#drilling and boring machine# customer.
