Plunger pump for agricultural machine

Abstract

The invention relates to the technical field of agricultural mechanical equipment, and provides a plunger pump for an agricultural machine. The plunger pump comprises a plunger pump shell, a rear cover is connected to the rear side wall of the plunger pump shell in a penetrating manner, an oil inlet and an oil outlet are formed in the rear cover, an oil supplement pump cover is connected to the rear side wall of the rear cover, a transmission shaft is arranged on the inner side wall of the plunger pump shell, a cylinder body is meshed on the section, located in the plunger pump shell, of the transmission shaft, a flow distribution plate is propped against the rear side wall of the cylinder body, a plurality of plunger holes are formed in the cylinder body, and plungers are connected in theplunger holes in a sliding mode. The plunger pump has the advantages that the defects in the prior art are overcome, the design is reasonable, the structure is compact, the problems that the displacement of an existing plunger pump is not easy to adjust, the strength is not high, the protection measures are incomplete, and the pump is not prone to be connected in series are solved; and a simple structure combination is adopted by the plunger pump, the displacement can be conveniently and quickly adjusted by rotating a adjusting rotating shaft, meanwhile, the strength and the protection measures of the pump are improved, the pump is more suitable for being connected in series, and a strong practicability is achieved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a plunger pump for agricultural machinery. Background technique [0002] The plunger pump of agricultural machinery is a plunger pump used on agricultural machinery. The plunger pump is a positive displacement pump, which realizes the transportation of medium through the change of sealed volume composed of plunger, cylinder and inlet and outlet valves. [0003] At present, there are few hydraulic plunger pumps developed for agricultural machinery in China, and they are high imitation products, mainly relying on imports. However, the existing plunger pumps for agricultural machinery, whether domestic or imported, have more or less the following problems: 1. The displacement of the plunger pump is not easy to adjust, the structure of the adjustment mechanism is complex, and the cost is high; 2. It cannot withstand radial tension and the installation is limited; 3. Th...

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a plunger pump for agricultural machinery, which overcomes the deficiencies of the prior art, has a reasonable design and a compact structure, and solves the problem that the displacement of the existing plunger pump is difficult to adjust, and the strength The problem of low height, incomplete protection measures and difficult series pumps, the present invention adopts a simple structure combination, adjusts the displacement conveniently and quickly by rotating and adjusting the shaft, and improves the strength and protection measures of the pump at the same time, and is more suitable for series pumps, with great Strong practicality

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