Plunger type equal-oil-inlet-outlet-flow four-way hydraulic transformer

Abstract

The invention discloses a plunger type equal-oil-inlet-outlet-flow four-way hydraulic transformer, which adopts an inclined axis type axial plunger motor as a base body, and comprises a shell, a flow distribution plate, an end cover, a cylinder body, a plunger, an inclined plate and the like. Four kidney slots are formed in the flow distribution plate; N plunger holes are uniformly formed in the cylinder body; the left side of the flow distribution plate and the right side of the end cover fit through an oil film; the right side of the flow distribution plate and the left side of the cylinder body through an oil film; four oil ports are formed in the end cover and communicate with the four kidney slots in the flow distribution plate through four kidney slots in the end cover; the right end of the plunger is hinged with the inclined plate through a spherical end head; the flow distribution plate, the cylinder body and the inclined plate can rotate along respective central axes; an included angle exists between the central axis of the flow distribution plate and the central axis of the inclined plate; and an included angle exists between the central axis of the cylinder body and the inclined plate. The plunger type equal-oil-inlet-outlet-flow four-way hydraulic transformer provided by the invention not only can enable hydraulic energy in a hydraulic system recovery system to enter serially without changing the flow of an oil circuit, but also can release stored liquid energy so as to be recycled, has an oil-liquid pressure transformation function, and is provided with four liquid inlet and outlet holes, wherein the plunger is a main energy conversion element.

Description

technical field [0001] The invention relates to a plunger type four-way hydraulic transformer with equal flow rate of oil in and out, which belongs to hydraulic transmission and control technology. Background technique [0002] Nowadays, in hydraulic equipment, one hydraulic pump supplies oil to multiple loads at the same time, and the output pressure of the hydraulic pump must be higher than the maximum load pressure to allow the maximum load to operate. If the load pressure is very different, the oil supplied by the system to the low-pressure load circuit will be throttled to a large pressure through the speed control valve, resulting in a large power loss, the efficiency of the system is very low, and the oil temperature will rise. It must be equipped with Larger power cooling equipment lowers the oil temperature to the range required by the system, which increases power consumption. For working conditions with potential energy reduction and inertial kinetic energy braki...

AI Technical Summary

Problems solved by technology

The current pump and motor tow hydraulic recovery device has complex structure, large volume and weight, low recovery efficiency and high cost; while the flow ratio of the two pressure oil ports of the new hydraulic transformer is the reciprocal of the transformation ratio, it is difficult to control the flow entering the load Flow rate, mainly used for secondary pressure regulation of constant pressure network

Most of the current hydraulic equipment, especially construction machinery, is a valve-controlled load hydraulic system. This system is very mature, and many of them have been made into integrated valve groups and industrial hydraulic pumps that match specific loads. It is difficult to change the existing hydraulic system. structure and process, but there are problems of throttling, heat generation and low efficiency

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