Concrete quantitative mixing device for construction machinery

Abstract

The invention discloses a concrete quantitative stirring device for construction machines. The concrete quantitative stirring device for construction machines structurally comprises a valve controller, a discharging head, a valve plate, a leakage-prevention device, a base, a first draw-off pump, a second draw-off pump, a stirring motor, a conveying pipe, a control box, a stirring box and a manualadding opening; the first draw-off pump and the second draw-off pump are locked to the left side of the top end of the base perpendicularly, the stirring box is welded to the top end, the first draw-off pump is located on the front side of the second draw-off pump, and is located on the left side of the stirring box, and electrically connected with the leakage-prevention device, the right end isin glued connection with the upper side of the left end of the control box through the conveying pipe, when the device is used, through mechanisms of a gear, an up pressing plate, a spring, a power connection contact rod and the like of the device, when the discharging opening is opened, raw material draw-off equipment of the device is in the power-failure state, when the discharging opening is closed, the equipment automatically returns to be in the access state, when the device is used, the phenomenon that a user forgets to close the discharging opening is avoided, and therefore leakage of raw material adding is avoided, raw material waste is avoided, and use is convenient.

Description

technical field [0001] The invention relates to a concrete quantitative mixing device for construction machinery, which belongs to the field of concrete mixing devices. Background technique [0002] According to its working principle, concrete mixing devices can be divided into two categories: self-falling type and forced type. The self-falling concrete mixer is suitable for mixing plastic concrete. The mixing effect of the forced mixer is stronger than that of the self-falling mixer, and it is suitable for mixing dry hard concrete and light aggregate concrete. [0003] Self-falling mixers have a long history. As early as the beginning of the 20th century, drum-type concrete mixing devices driven by steam engines had begun to appear. After the 1950s, double-cone mixers of reverse discharge type and tilting discharge type, as well as split drum mixers, etc. came out and developed one after another. There are radially arranged mixing blades on the inner wall of the mixing c...

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Problems solved by technology

[0008] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a concrete quantitative mixing device for construction machinery to solve the problem that when the prior art is used, it is easy to feed the material due to the forgetting to close the discharge port, resulting in the feed directly from the discharge port. The flow out of the material port leads to waste of raw materials and inconvenience

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