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Jumping-prevention machine halt method of double-cylinder pumping system, double-cylinder pumping system and pumping equipment

A double-cylinder pump and pumping technology, which is applied in the field of dual-cylinder pumping system control, pumping equipment, and double-cylinder pumping system anti-movement shutdown, can solve problems such as non-automatic unloading, safety accidents, and potential safety hazards. Achieve the effects of preventing accidental movement, universal applicability, and ensuring safety

Active Publication Date: 2012-12-26
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, the existing technology has high requirements for the operator, and when the operation steps are wrong, it is easy to lead to safety accidents
The accumulator in the distribution oil circuit does not unload automatically, which also has certain safety hazards and does not meet the requirements of relevant national standards.
In addition, if the hydraulic system does not lose power during repair and maintenance, it may cause safety hazards such as misoperation of the actuator.

Method used

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  • Jumping-prevention machine halt method of double-cylinder pumping system, double-cylinder pumping system and pumping equipment
  • Jumping-prevention machine halt method of double-cylinder pumping system, double-cylinder pumping system and pumping equipment
  • Jumping-prevention machine halt method of double-cylinder pumping system, double-cylinder pumping system and pumping equipment

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Embodiment Construction

[0063] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments. .

[0064] In order to make the description of the specific implementation more specific and facilitate the understanding of those skilled in the art, the specific implementation of the present invention will be described below mainly by taking a concrete double-cylinder pumping system as an example. Correspondingly, in the following description, the double-cylinder pumping system anti-movement shutdown method of the present invention can be called "concrete double-cylinder pumping system anti-motion shutdown method", and the double-cylinder pumping system can be called "concrete double-cylinder pumping system...

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Abstract

The invention relates to a jumping-prevention machine halt method of a double-cylinder pumping system. The double-cylinder pumping system comprises a double-cylinder pumping device and a hydraulic control system of the double-cylinder pumping device, wherein the double-cylinder pumping device is provided with two main oil cylinders (4, 5). The machine halt method comprises the following steps that firstly, the double-cylinder pumping device is controlled to stop the pumping operation; and secondly, at least one chamber of a rod cavity and a rodless cavity of the two main oil cylinders (4, 5) is communicated with an oil tank or an oil return oil path. In addition, the invention also provides the double-cylinder pumping system and pumping equipment. The pressure relief step is inventively added on the basis of the existing double-cylinder pumping system, so each cavity of the main oil cylinder of he double-cylinder pumping system is in low-pressure or pressure-free state, the accidental jumping of a piston rod of the main oil cylinders caused by sealed high-pressure oil is effectively prevented, and the safety of maintainers in the overhauling and maintenance work process of the double-cylinder pumping system is relatively and effectively ensured.

Description

technical field [0001] The invention relates to a control method for a double-cylinder pumping system, in particular to a method for preventing movement and stopping the double-cylinder pumping system. Further, the present invention relates to a double-cylinder pumping system capable of realizing the anti-turbulence shutdown method. Furthermore, the invention also relates to a pumping device comprising the dual cylinder pumping system. Background technique [0002] Concrete, mud and other viscous materials are commonly used building materials in the field of engineering construction. These viscous materials are typically pumped through a double-cylinder pumping system. The double-cylinder pumping system generally includes a double-cylinder pumping device and its hydraulic control. system. As far as the double-cylinder pumping device is concerned, its main structure can refer to the concrete double-cylinder pumping device widely used in engineering construction. This double...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/10
CPCF04B9/1172F04B9/1174F04B15/02F04B49/106
Inventor 李沛林曹奎王佳茜高荣芝李华
Owner ZOOMLION HEAVY IND CO LTD
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