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A negative load direct energy storage hydraulic control system

A hydraulic control system and energy storage technology, which is applied to fluid pressure actuation system components, fluid pressure actuation devices, servo motors, etc., can solve problems such as high operating costs and poor energy saving efficiency, and achieve low capital investment and high efficiency. Potential energy recovery rate, the effect of omitting oil supplement power unit

Active Publication Date: 2021-12-07
江苏南方润滑股份有限公司
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned defects in the existing potential energy conversion + energy storage type energy-saving hydraulic control system, and propose a negative load direct energy storage type hydraulic control system, which fundamentally solves the problem of high operating cost and energy saving of the existing hydraulic control system. The problem of poor efficiency

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  • A negative load direct energy storage hydraulic control system
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Embodiment Construction

[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings. Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the con...

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Abstract

The present invention proposes a negative load direct energy storage type hydraulic control system, whose structure includes an energy storage device, a lifting cylinder control valve group, a translation cylinder control valve group and a hydraulic power device, wherein the energy storage device is connected to the lifting cylinder through a ball valve to control The valve group, the lift cylinder control valve group is connected in parallel with the translation cylinder control valve group, and is connected to the hydraulic power device at the same time. The accumulator group and the low-pressure accumulator group are respectively connected to the hydraulic power unit through ball valves, and the energy-enhancing pressure-limiting valve group is connected to the high-pressure accumulator group and the low-pressure accumulator group at the same time. The present invention selects an electric proportional variable pump and adopts a two-way proportional speed regulating valve group to realize direct energy storage of negative loads. Compared with the conventional energy-saving working mode, the potential energy conversion device and the fuel supply power device are omitted, the control process is simplified, the cost is effectively reduced, and the energy saving is saved. energy consumption.

Description

technical field [0001] The invention relates to a negative load direct energy storage type hydraulic control system, which belongs to the technical field of hydraulic control. Background technique [0002] In industrial production, there are many mechanisms for lifting and dropping objects. In the process of lifting an object, it is necessary to overcome the effect of gravity, so work must be done on the object; in the process of falling the object, the object has a large potential energy, and the object can fall naturally without any external force, but the object must be kept in a certain position. If the law falls, it must pay the work equal to and opposite to the potential energy of the object (potential energy balance work) to achieve the goal. For the falling process of motor dragging, friction braking is generally used to realize; for the falling process of hydraulic dragging, this potential energy is called negative load energy, and generally the throttling is set i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/08F15B13/02F15B21/08F15B1/02
CPCF15B11/08F15B13/02F15B21/08F15B1/02
Inventor 李克骞凌红本张朝晖张明
Owner 江苏南方润滑股份有限公司
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