Plunger structure of axial hydraulic pump and axial hydraulic pump comprising same

Abstract

The invention relates to a plunger structure of an axial hydraulic pump and the axial hydraulic pump comprising the plunger structure. The plunger structure of the axial hydraulic pump comprises a plunger body and a plunger ball head. The plunger ball head is connected to one end of the plunger body; the plunger body comprises a plurality of body structures which are sequentially connected, so that the plunger body is of a multi-section structure. According to the plunger structure of the axial hydraulic pump, the plunger body is arranged to be of a sectional structure, the influence of pressure change of output fluid of the axial hydraulic pump on plunger deformation can be effectively improved, the pressure grade of the axial hydraulic pump is improved, and the purpose of high pressure is achieved; by the adoption of the sectional plunger, the overall structure can be more compact under the condition that pressure is increased without changing materials of the plunger of the axial hydraulic pump, and the working range of the axial hydraulic pump can be greatly enlarged due to the fact that the borne pressure is improved.

Description

technical field [0001] The invention relates to the technical field of axial hydraulic pumps, in particular to a plunger structure of an axial hydraulic pump and an axial hydraulic pump including the same. Background technique [0002] Such as figure 1 As shown, the axial hydraulic pump is mainly composed of a transmission shaft 1, a housing 2, a swash plate 3, a plunger structure 4, a cylinder body 5, a bearing 6, a bearing 7, a ball joint 8, a flow plate 9, and a rear cover 10. . The plunger structure 4 is evenly distributed in the cylinder body along the circumference. There is an inclination angle γ between the axis of the swash plate 3 and the cylinder body 5. The plunger structure 4 is tightly pressed on the swash plate 3. The disc 3 and the cylinder body 5 are supported on the casing by bearings 6 and 7 at both ends, and the cylinder body 5 is connected with the transmission shaft 1 through a spline. When the prime mover drives the cylinder body 5 to rotate through...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a plunger structure of an axial hydraulic pump and an axial hydraulic pump including it, so as to solve the problem that the plunger in the prior art cannot bear the long-term pressure due to the structure, material and other reasons. high voltage problem

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