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Double-power hydraulic system of concrete construction machinery and concrete construction machinery

A technology for hydraulic systems and construction machinery, applied in mechanical equipment, fluid pressure actuating devices, servo motors, etc., can solve the problems of large layout space, long time consumption, manual cleaning, etc., to facilitate system control and improve work efficiency Effect

Active Publication Date: 2017-05-17
XUZHOU XCMG CONSTR MACHINERY CO LTD BUILDING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In the first type of dual-power hydraulic system, the emergency pump set driven by the engine can realize all the functions of the working pump set, but its layout takes up a lot of space and costs are high
[0018] In the second type of dual-power hydraulic system, only the boom movement can be realized, and the pumping and swinging movements cannot be realized
In case of a sudden power failure, the concrete in the delivery pipe will not be able to be pumped out, and it can only be cleaned manually
[0019] In the third type of dual-power hydraulic system, the boom, pumping and swinging actions can be realized by a single pump, but the three cannot work at the same time, especially the pumping and swinging cannot be carried out at the same time. When used in emergency conditions, it needs to go back and forth Switching, the control process is cumbersome and time-consuming

Method used

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  • Double-power hydraulic system of concrete construction machinery and concrete construction machinery
  • Double-power hydraulic system of concrete construction machinery and concrete construction machinery
  • Double-power hydraulic system of concrete construction machinery and concrete construction machinery

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of descriptio...

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Abstract

The invention discloses a double-power hydraulic system of concrete construction machinery and concrete construction machinery. The double-power hydraulic system comprises a working power source, a working pump set, an emergency power source, an emergency pump, a pumping hydraulic system, a boom hydraulic system, a swinging hydraulic system and an emergency control device, wherein an outlet of the emergency pump is connected with the pumping hydraulic system, the boom hydraulic system and the swinging hydraulic system to supply oil to the pumping hydraulic system, the boom hydraulic system and the swinging hydraulic system; the outlet of the emergency pump is connected with at least two hydraulic systems in the pumping hydraulic system, the boom hydraulic system and the swinging hydraulic system through the emergency control device; and the emergency control device can control the emergency pump to supply oil to the at least two hydraulic systems at the same time, so that the emergency pump can supply oil to the pumping hydraulic system, the boom hydraulic system and the swinging hydraulic system at the same time. According to the double-power hydraulic system, system control under the emergency working condition is convenient, and the working efficiency under the emergency working condition is improved.

Description

technical field [0001] The invention relates to the technical field of concrete construction, in particular to a dual-power hydraulic system of a concrete construction machine and the concrete construction machine. Background technique [0002] The concrete shotcrete truck is a commonly used concrete construction machine. The concrete spraying vehicle uses the concrete pump to mix the ready-mixed mixture with compressed air and accelerator at the nozzle through the delivery pipe, and sprays it to the sprayed surface at high speed to form a concrete support layer. Concrete shotcrete vehicles are widely used in tunnels, underground workshops, subway engineering, rock engineering, military underground engineering, and highway engineering. [0003] The main working system of the concrete shotcrete truck includes pumping hydraulic system, boom hydraulic system and swing hydraulic system. The pumping hydraulic system is responsible for the pumping action of concrete. By controll...

Claims

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Application Information

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IPC IPC(8): F15B11/17
CPCF15B11/17
Inventor 沈千里何继盛王海成窦庆乐
Owner XUZHOU XCMG CONSTR MACHINERY CO LTD BUILDING MACHINERY
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