Switchable single-action and serial synchronous circuit and application method thereof

A circuit and switching valve technology, which is applied in the direction of fluid pressure actuators, servo motors, servo motor components, etc., can solve the problem that hydraulic synchronization components do not adapt to the small flow specifications in the medical field, and the shape and volume are difficult to meet the requirements of miniaturization. and synchronous circuit switching control problems, to achieve the effect of simple and feasible combined structure, easy installation and disassembly, and cost reduction

Pending Publication Date: 2018-06-08
上海中驰自动控制技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing hydraulic synchronous circuits use hydraulic synchronous components to meet the synchronous requirements, such as diverter-collector valves, synchronous motors, etc.; And synchronous loop switching control is complicated, and it is difficult to meet the miniaturization requirements of the industry in terms of appearance and volume

Method used

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  • Switchable single-action and serial synchronous circuit and application method thereof
  • Switchable single-action and serial synchronous circuit and application method thereof
  • Switchable single-action and serial synchronous circuit and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] see image 3 , In this embodiment, three oil cylinders are activated. Undoubtedly, the three oil cylinders mentioned above can be replaced by any other integer number of oil cylinders greater than three, and all of them can realize the technical effect of this circuit. The control circuits of the three oil cylinders are respectively installed in two valve blocks, and the two valve blocks are spliced ​​together to form an integral functional valve group; the splicing between the valve blocks can be connected by clips, bolts or any other connection methods , just make the valve blocks relatively fixed. In this embodiment, the splicing between the valve blocks adopts high-strength bolt connection, and the adjacent side of the adjacent valve blocks is the superimposed installation surface, and the superimposed installation surface is provided with openings and sealing rings for Groups are spliced ​​and the pipelines between them can be connected to each other. The valve ...

Embodiment 2

[0067] see Figure 4 and Figure 5 , In this embodiment, four oil cylinder units are used to form a circuit of the present invention. On the basis of the foregoing embodiment 1, an oil cylinder and the structure of oil cylinder 4# and the corresponding switching valve Y9 are added. The functions it can realize include synchronous work of four oil cylinders, each oil cylinder works independently, and the synchronous work of two adjacent oil cylinders, that is, the synchronization of oil cylinder 1# and oil cylinder 2#, the synchronization of oil cylinder 2# and oil cylinder 3#, the synchronization of oil cylinder 3# and Oil cylinder 4# is synchronized, and its synchronization method is similar to that described in Embodiment 1. In this embodiment, there is no need to go into details, and only four oil cylinders are synchronously stretched out for an example as follows:

[0068] like Figure 5 As shown in the electrical action table, when the inlet solenoid valve Y1, switching...

Embodiment 3

[0070] By superimposing and installing the above valve blocks to form a valve group, it can be used to realize a multi-cylinder circuit structure, and several oil cylinders are grouped and installed in different valve blocks to achieve convenient modular production and installation. and use; it can also be used to realize the connection between at least two circuits, that is, on the basis of a basic circuit, add at least one new circuit, there is no linkage relationship between each circuit, and the common oil inlet and oil pump The pipeline structure between the oil return port and the oil tank, so as to realize the simplicity of the pipeline when there are multiple circuits at the same time. Similarly, on the basis of retaining at least one circuit, the remaining newly added circuits can be replaced by For a single cylinder unit or other cylinder circuit structures, only the oil inlet of the newly added circuit structure is connected to the oil inlet of the basic circuit, and...

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Abstract

The invention relates to the technical field of a control circuit and a control method of a hydraulic system and in particular relates to a switchable single-action and serial synchronous circuit andan application method thereof. The switchable single-action and serial synchronous circuit comprises at least three oil cylinder units which are arranged in sequence and at least two switching valves;each oil cylinder unit is composed of an oil cylinder, an inlet pipeline structure connected with an oil cylinder rodless cavity and an outlet pipeline structure connected with an oil cylinder rod cavity; the inlet pipeline structure and the outlet pipeline structure of each oil cylinder unit are connected with an oil inlet respectively; the outlet pipeline structure of the former oil cylinder unit is communicated to the inlet pipeline structure of the next oil cylinder unit and the corresponding switching valve. The switchable single-action and serial synchronous circuit provided by the invention has the advantages that connecting oil paths of the plurality of oil cylinders are switched between serial connection and parallel connection by a mini-type solenoid valve and various control modes are realized; a hydraulic synchronous element is not needed; the cost is reduced and the appearance volume is also reduced; the switchable single-action and serial synchronous circuit is simpler and more convenient to mount and use; the oil cylinder units are mounted on a valve group and the valve group can be spliced or detached according to actual utilization requirements.

Description

technical field [0001] The invention relates to the technical field of a control circuit and a control method of a hydraulic system, in particular to a switchable single-action and series synchronous circuit and a method for using the same. Background technique [0002] With the continuous development of medical operating bed control equipment, after meeting its basic functional requirements, more control requirements are continuously put forward for the hydraulic system, such as the requirement for switching between single-acting and series synchronous, in order to adapt to intelligent and flexible control demand. [0003] Most of the existing hydraulic synchronous circuits use hydraulic synchronous components to meet the synchronous requirements, such as diverter-collector valves, synchronous motors, etc.; And synchronous circuit switching control is complicated, and it is difficult to meet the miniaturization requirements of the industry in terms of appearance and volume...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B11/22
CPCF15B13/02F15B11/22
Inventor 王万勇罗芸毅
Owner 上海中驰自动控制技术有限公司
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