Single-acting blade-type hydraulic transformer controlled by hydraulic cylinder

Abstract

A single-acting blade-type hydraulic transformer controlled by a hydraulic cylinder comprises two single-acting variable units, a shell, a right end cover, a rotating shaft, a left end cover, an upper end cover and the like. The transformer is characterized in that the two single-acting variable units share one rotating shaft; the left and right ends of the rotating shaft are installed on the left and right end covers via sliding bearings; a rotor of one single-acting variable unit is fit-connected with a left half shaft of the rotating shaft by a parallel key; a rotor of the other single-acting variable unit is fit-connected with a right half shaft of the rotating shaft by a parallel key; the two single-acting variable units are installed in the same shell; the right, left and upper end covers are fixed on the shell by bolts. The transformer has the benefit of adjusting the pressure of the constant pressure rail system to any value within the variation range of the load pressure by the way of no throttle loss and can be applied to low pressure hydraulic systems so as to expand the application range of the hydraulic transformer and enrich the variety of the hydraulic transformer. The hydraulic transformer has small rotary inertia, quick dynamic response and good control performance.

Description

(1) Technical field [0001] The invention relates to a hydraulic transformer, in particular to a single-acting vane hydraulic transformer controlled by a hydraulic cylinder, which belongs to the field of machinery. (2) Background technology [0002] A hydraulic transformer is a hydraulic component that realizes pressure conversion in hydraulic transmission. The hydraulic transformer can efficiently convert the input hydraulic energy under a given pressure into the output hydraulic energy under another pressure. Using it can realize the independent control of multiple loads in the constant pressure network, and also make the energy reverse flow , not only can drive linear loads without throttling loss, but also can drive rotary loads. [0003] The existing hydraulic transformers are basically plunger-type structures, with high working pressure above 20Mpa and large flow range. They are generally used in high-pressure and large-flow hydraulic systems, and in medium and low-pre...

AI Technical Summary

Problems solved by technology

[0003] The existing hydraulic transformers are basically plunger-type structures, with high working pressure above 20Mpa and large flow range. They are generally used in high-pressure and large-flow hydraulic systems, and in medium and low-pressure hydraulic systems, the efficiency is very low. , and the plunger hydraulic transformer has a complex structure, high processing precision, is sensitive to oil pollution, requires high oil filtration precision, and is expensive, so the application range of hydraulic transformers is greatly limited.

Images