Double-cylinder pumping system anti-shutdown method, double-cylinder pumping system and pumping equipment

A double-cylinder pump and pumping technology, which is applied in the fields of double-cylinder pumping system anti-shutdown, pumping equipment, and double-cylinder pumping system control, can solve problems such as non-automatic unloading, safety accidents, non-compliance, etc. To achieve the effect of preventing accidental movement, universal applicability, and preventing movement

Active Publication Date: 2015-09-30
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
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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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  • Double-cylinder pumping system anti-shutdown method, double-cylinder pumping system and pumping equipment
  • Double-cylinder pumping system anti-shutdown method, double-cylinder pumping system and pumping equipment
  • Double-cylinder pumping system anti-shutdown method, 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

A jumping-proof stopping method of a dual-cylinder pumping system. The dual-cylinder pumping system comprises a dual-cylinder pumping device having two master cylinders (4, 5) and a hydraulic control system of the dual-cylinder pumping device. The stopping method comprises: first, controlling the dual-cylinder pumping device to stop pumping; second, making at least one chamber among rod chambers (A, C) and rodless chambers (B, D) of the two master cylinders (4, 5) be in communication with an oil tank or a return oil path. A dual-cylinder pumping system and pumping equipment. On the basis of the dual-cylinder pumping system, a pressure releasing step is added, so that the chambers of the master cylinders of the dual-cylinder pumping system are in low pressure or zero-pressure state, unexpected jumping of the piston rod of the master cylinder caused by the high pressure oil is effectively prevented, and during maintenance of the dual-cylinder pumping system, the safety of maintenance personnel is 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 Patents(China)
IPC IPC(8): F04B49/10
CPCF04B15/02F04B49/106F04B9/1172F04B9/1174
Inventor 李沛林曹奎王佳茜高荣芝李华
Owner ZOOMLION HEAVY IND CO LTD
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