Low flow pulsation hydraulic pressure transformer

Abstract

The invention provides a low flow pulsation hydraulic pressure transformer, which comprises a spindle, a tilting tray, a left pressure transformation component and a right pressure transformation component, the tilting tray is a conical column table, a transverse through hole is machined in the center of the tilting tray, the spindle is transversely mounted in the through hole, and the left pressure transformation component and the right pressure transformation component are mounted at the left end and the right end of the spindle respectively and symmetrically arranged along a central axis of the tilting tray. By means of coaxial rotation of double rotators, the number of plungers working at each distributing port is doubled in each moment of the rotation process of the rotators, so that the flow pulsation of the hydraulic pressure transformer can be reduced, and system operation stability is improved. By the aid of the tilting tray capable of bidirectionally and freely rotating around the spindle, the pressure of an oil source can be adjusted to an arbitrary value without energy loss.

Description

technical field [0001] The invention relates to a hydraulic transformer, in particular to a hydraulic transformer with small flow pulsation. Background technique [0002] In the hydraulic control system, due to the large pressure difference in the traditional throttling control method, it will bring a large energy loss. Therefore, in order to transmit the energy of the constant voltage network in a constant power manner like a power transformer, a hydraulic transformer is produced. [0003] Hydraulic transformers are generally in the form of a pump / motor coaxial connection or a rotating three-port valve plate. For the pump / motor coaxial connection form, by adjusting the displacement of the variable motor, the pressure of the oil source is transmitted at a certain pressure, which can realize the function of the hydraulic transformer, but the hydraulic transformer is because the two devices are mechanically connected. At the same time, the volume and weight are very large, a...

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Problems solved by technology

For the pump / motor coaxial connection, by adjusting the displacement of the variable motor, the pressure of the oil source can be transmitted at a certain pressure, which can realize the function of the hydraulic transformer. At the same time, the size and weight are very large, and the adjustment mechanism of the variable motor requires a large amount of power, high cost, and low efficiency, which affects its application.

As for the form of the rotary three-port distribution plate, the traditional design adopts the form of a single rotary body. Due to the small number of plungers working on each oil port, there are disadvantages of poor stability in the working process and large output flow pulsation.

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