Wind generating set and hydraulic pump aggregate thereof

Abstract

The invention discloses a hydraulic pump aggregate, which comprises a front end cap (1), a rear end cap (2), a piston cylinder and a rotating shaft (3). The rotating shaft comprises a symmetric shaft (31) and at least two eccentric shafts (32), the eccentric shafts (32) are axially arrayed along the symmetric shaft (31), projections of the eccentric shafts (32) in a radial plane of the symmetric shaft (31) are peripherally distributed uniformly, a group of plunger cavities (41) is formed in an inner cavity of the piston cylinder relative to each eccentric shaft (32), a plunger component capable of reciprocating is arranged in each plunger cavity (41), the other ends of the plunger components are attached on the outsides of the eccentric shafts (32), and the plunger components can rotate relatively. On the one hand, parts can be universal in different power modes due to the proper structural design of the hydraulic pump aggregate, so that modular production is realized, and on the other hand, power shunt can be easily realized.

Description

technical field [0001] The invention relates to the technical field of transmission components, in particular to a hydraulic pump set. In addition, the present invention also relates to a wind power generating set comprising the hydraulic pump set. Background technique [0002] Although it has been more than 100 years since the first wind turbine was invented in Denmark, the composition and arrangement of the transmission chain of wind turbines have not changed fundamentally in recent decades, basically: impeller + main shaft + speed increaser Composition and arrangement of gearbox + coupling + generator. However, as the installed power of a single unit increases, the volume of the speed-up gearbox becomes larger and the structural design becomes more and more complicated. Especially in structural design, when the power is not very large (the installed capacity of a single machine generally does not exceed 2 MW), the most commonly used structural design of the speed-up gea...

AI Technical Summary

Problems solved by technology

[0007] First of all, the plunger hydraulic pump cannot achieve modular production

Specifically, the dimensions of the parts such as the stator, the plunger and the plunger cylinder required by the plunger hydraulic pumps of different powers are completely different. Commonly used in hydraulic motors of different powers, so modular production cannot be realized

Secondly, the plunger hydraulic pump is not easy to realize power split

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