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Concrete pumping hydraulic system and vehicle having same

A concrete pump and hydraulic system technology, applied in the direction of fluid pressure actuators, servo motors, servo meter circuits, etc., can solve problems such as potential safety hazards, affecting pumping control, concrete backflow, etc., to enhance safety and prevent backflow , easy to control the effect

Active Publication Date: 2021-02-02
河北雷萨重型工程机械有限责任公司
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Problems solved by technology

[0002] In the related technology, when the concrete pumping hydraulic pressure is in the standby state, the gravity of the concrete in the pipeline will push the piston rod of the main oil cylinder on one side of the concrete to automatically retract, and the piston rod of the main oil cylinder on the other side will automatically extend, and the concrete in the pipeline will flow back. , there is a potential safety hazard, and it also affects the subsequent pumping control

Method used

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  • Concrete pumping hydraulic system and vehicle having same

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] Refer below figure 1 A concrete pumping hydraulic system 100 according to an embodiment of the present invention will be described.

[0029] The concrete pumping hydraulic system 100 according to the present invention includes: an oil tank 24 , a first oil pump 21 , a first oil cylinder 11 , a second oil cylinder 12 , a main reversing valve group 3 and a locking valve group 4 .

[0030] Wherein, the first oil pump 21 is connected with the oil tank 24, and is used to deliver hydraulic oil to the first oil cylinder 11 and the secon...

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Abstract

The invention discloses a concrete pumping hydraulic system and a vehicle with the same. The concrete pumping hydraulic system comprises an oil tank, a first oil pump, a first oil cylinder, a second oil cylinder, a main reversing valve group and a locking valve group; the first oil pump is connected with the oil tank; the first oil cylinder and the second oil cylinder are connected with an oil outlet of the first oil pump through the main reversing valve group; and a rod cavity of the first oil cylinder is selectively in communication with the main reversing valve group through the locking valve group. According to the concrete pumping hydraulic system, by arranging the locking valve group, in the standby state, a piston rod of the first oil cylinder or a piston rod of the second oil cylinder can not retract by the concrete, so that the backflow of the concrete is prevented, the safety of the concrete pumping hydraulic system is further improved, and the control over the subsequent pumping operation is facilitated.

Description

technical field [0001] The invention belongs to the technical field of vehicle manufacturing, and in particular relates to a concrete pumping hydraulic system and a vehicle equipped with the same. Background technique [0002] In the related technology, when the concrete pumping hydraulic pressure is in the standby state, the gravity of the concrete in the pipeline will push the piston rod of the main oil cylinder on one side of the concrete to automatically retract, and the piston rod of the main oil cylinder on the other side will automatically extend, and the concrete in the pipeline will flow back. , there is a potential safety hazard, and it also affects the subsequent pumping control. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a concrete pumping hydraulic system, which can prevent the backflow of concrete due to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/17F15B11/20F15B1/02
CPCF15B1/02F15B11/17F15B11/20F15B2211/71F15B2211/72F15B2211/782
Inventor 涂书柏邝逸灵
Owner 河北雷萨重型工程机械有限责任公司
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