A double-cylinder hydraulic transformer with rotatable swash plate

Abstract

The invention provides a double-cylinder hydraulic transformer with a rotatable swashplate. The double-cylinder hydraulic transformer is used for adjusting the transformation ratio and is characterized in that the double-cylinder hydraulic transformer comprises a cylinder portion, two flow distribution portions, a shell portion and a cylinder connecting portion; the cylinder portion comprises twocylinders and plungers arranged in plunger holes of the two cylinders; the two flow distribution portions each comprise an internal oil port used for inputting hydraulic oil, a flow distribution portwhich is connected with the internal oil port and used for delivering the input hydraulic oil to the corresponding cylinder, a flow distribution disc which is connected with the flow distribution portand used for distributing the hydraulic oil flowing from the flow distribution port to the corresponding cylinder and an internal oil way used for connecting the two internal oil ports; the shell portion comprises a pump shell covering the cylinders, a flow distribution shell which is connected with the pump shell and used for covering the flow distribution portion and a flow distribution shell end cover which is connected with the pump shell and the flow distribution shell and used for sealing the hydraulic transformer; and the cylinder connecting portion comprises a main shaft connected with the cylinders through splines, the swashplate connected with the main shaft through a bearing and a rotor which is connected with the main shaft through the swashplate and used for controlling the swashplate to rotate, wherein the two ends of the rotor are provided with horizontal shafts.

Description

technical field [0001] The invention relates to a hydraulic transformer, in particular to a swash plate rotatable double-cylinder hydraulic transformer. Background technique [0002] The secondary regulation technology based on the constant pressure network is a new type of hydraulic transmission technology developed in recent years. In the secondary regulation system, the secondary element can obtain energy from the constant voltage network without loss, and can be connected to multiple unrelated loads to realize the recovery and reuse of system braking energy and gravitational potential energy. For driving the constant voltage network to adjust the rotating load twice, it can be realized by variable motor and servo adjustment mechanism. For driving linear loads, the traditional approach is to use throttle valves, which will generate a lot of energy loss. Therefore, the secondary adjustment of the constant voltage network urgently needs a hydraulic component that drives a...

AI Technical Summary

Problems solved by technology

[0003] At present, the new hydraulic transformer mainly realizes the change of the transformation ratio by rotating the distribution plate, but the problem is that as the rotation angle of the distribution plate increases, in order to meet the dynamic characteristics of the actuator and adapt to the load pressure, a large displacement is required hydraulic transformer

However, too large components are difficult to install under actual conditions, and will increase the pulsation of flow and pressure

In addition, because the relative position between the distribution plate, the distribution port and the cylinder is not fixed, the oil leakage is serious, which reduces the efficiency of the hydraulic transformer itself, so it is necessary to design a hydraulic transformer that can solve the above problems

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