Double-flange cylinder spring gear pump

Abstract

The invention relates to a double-flange cylinder spring gear pump. A left inlet pipeline and a right inlet pipeline are converged into an oil inlet header pipe provided with an inlet pipe flange; a left outlet pipeline and a right outlet pipeline are converged into an oil outlet header pipe provided with an outlet pipe flange; two arcs at the center of the inner cavity of a pump body and the excircle of a driving gear are in sliding fit, and the right large semicircle of the inner cavity of the pump body and the excircle of a right driven gear are in sliding fit; a driving shaft at the center of a driving gear and a right driven shaft at the center of the right driven gear are parallel to each other, the driving shaft at the center of the driving gear and a left driven shaft at the center of the left driven gear are parallel to each other; the inner plane of the rear cover of a rear outer end cap is tightly fixed on the rear end face of the pump body; the inner plane of the front cover of a front outer end cover is tightly fixed on the front end face of the pump body; and the frontal plane of an end face compensating disc is attached to the driving gear, the right driven gear and the left driven gear, and a middle cylinder spring, a right cylinder spring and a left cylinder spring are respectively arranged between the back of the end face compensating disc and the inner plane of the front outer end face.

Description

technical field [0001] The invention belongs to the field of mechanical engineering. The international patent classification is F04D non-variable displacement pump, which relates to an energy conversion rotary positive displacement pump which converts mechanical energy into liquid pressure energy, in particular to a double-flange cylindrical spring gear pump. Background technique [0002] The known gear pumps are all working in pairs. Due to the large pressure difference between the inlet and outlet, it is bound to cause unilateral force on the gear, especially the unilateral force on the driving gear, which directly causes unilateral wear and leakage at the shaft of the driving gear. As a result, the life of the gear pump is short and the pressure rise is limited. Another problem that has been plagued by gear pumps that cannot be effectively solved is that after long-term high-speed operation, the inevitable wear of the end face cannot be effectively compensated. my countr...

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Problems solved by technology

my country patent authorization announcement number: CN1059019C swing vane pump; my country patent authorization announcement number: CN100374725C rotary vane pump; The internal gear pump of plastic casing; my country's patent authorization announcement number: CN101120175B and my country's patent authorization announcement number: CN101403382B a kind of gear pump for micro-miniature turbojet engine, etc., all do not see that there is a practical method to solve the stress of the gear pump. Symmetry and face wear clearance control issues

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