Speeding up and thrust augmentation device of hydraulic system

Abstract

The present invention introduces a hydraulic system speed increase and power adding apparatus which is provided with a connection oilchannel (1), wherein a oil pump (2) is pipe jointed on the oilchannel between a input terminal T1 and an output terminal B; a one way valve (11) and a oil pump (3) is pipe jointed between the oilchannel and the input terminal T2, wherein the oilchannel is between a output terminal B and the oil pump (2); a energy accumulator (10) is pipe jointed on the oilchannel between the one way valve (11) and a oil pump (3). When oilchannel of system distributor valve changes direction, the present apparatus can make the oil cylinder of the distributor valve changes direction quickly and make the pumping oil cylinder obtain pumping capability that can increase speed and add power, thereby can make the dynamic performance and reliability of the oil channel of the hydraulic system improved and strengthened effectively, also make the oil pump work under more smooth work status, improve pumping dynamic performance such as the concrete pump significantly.

Description

technical field [0001] The invention relates to a speed-increasing booster device suitable for a hydraulic system. Background technique [0002] The hydraulic system, especially the concrete pump hydraulic system, is used in the concrete pump to drive its pumping device and distribution device. In the existing hydraulic system, one of the working oil circuits is supplied by a single oil pump; the other is supplied by double pumps to the pumping oil circuit and the distribution oil circuit respectively. Their hydraulic systems are only capable of pumping at a constant rate. When the main oil pump works in the constant power control area, the former usually has insufficient power of the oil cylinder of the distribution valve or a large hydraulic shock of the oil circuit due to the increase of the pressure of the oil pump and the decrease of the displacement. The latter is because the oil pump of the distribution valve oil circuit is frequently switched between the maximum di...

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Problems solved by technology

The latter, because the oil pump in the distribution valve oil circuit frequently switches between the maximum displacement and the minimum displacement, resulting in an increase in failure rate, shortened working life, and insufficient performance

The above-mentioned defects not only adversely affect the working reliability of the concrete pump, but also increase the manufacturing and maintenance costs of the product

In particular, the existing concrete pump hydraulic system only has the pumping capacity of constant speed push, so that the concrete pump is not capable of overcoming resistance, and pipe plugging failures are prone to occur during work

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