Concrete spreader

Abstract

The invention relates to a concrete spreader, comprising a bracket (1) and a hopper (2), wherein the hopper (2) is connected with the bracket (1); the lower end of the hopper (2) is provided with a discharging opening (4); and an accelerated discharging device (3) is arranged at the discharging opening (4). Compared with the prior art, the concrete spreader ensure that concrete falling from the discharging opening has certain initial speed under the action of the accelerated discharging device because the concrete spreader is provided with the accelerated discharging device, the falling speed is quicker, and the concrete is more compact when falling to a tubular pile steel die; the accelerated discharging device can also ensure that the volume of the concrete passing through the discharging opening in unit time is more than that of the concrete falling naturally in unit time, and therefore, the purpose of increasing discharging amount can be realized without increasing an aperture of the discharging opening; and because the accelerated discharging device is not in complete contact with the concrete, the viscous effect of the accelerated discharging device on the concrete is less, the power required by the accelerated discharging device is lower and the wearing is less.

Description

technical field [0001] The invention relates to a concrete distributing machine. Background technique [0002] At present, there are two types of concrete placing machines in the prior art, one is an ordinary curtain-type concrete placing machine, and the other is a dragon-type placing machine; Closing to achieve or stop the action of material distribution, the concrete in the hopper will fall by its own gravity during material distribution, if you want to increase the amount of material distribution, you need to increase the opening degree of the discharge door, but this will easily make the opening of the discharge port If the thickness is greater than the diameter of the steel formwork for pipe piles, the falling concrete is easily scattered outside the steel formwork for pipe piles and the mold closing part. It is necessary to carefully clean the steel formwork for pipe piles before closing the molds. There are problems that the blanking is not dense enough, the distrib...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two types of concrete placing machines in the prior art, one is an ordinary curtain-type concrete placing machine, and the other is a dragon-type placing machine; Closing to achieve or stop the action of material distribution, the concrete in the hopper will fall by its own gravity during material distribution, if you want to increase the amount of material distribution, you need to increase the opening degree of the discharge door, but this will easily make the opening of the discharge port If the thickness is greater than the diameter of the steel formwork for pipe piles, the falling concrete is easily scattered outside the steel formwork for pipe piles and the mold closing part. It is necessary to carefully clean the steel formwork for pipe piles before closing the molds. There are problems that the blanking is not dense enough, the distribution efficiency is low, and the supply of concrete cannot be effectively controlled; the latter is equipped with a horizontal dragon under the hopper, that is, a screw-type feeding device, and the concrete is sent to the outlet through the dragon. Although the distribution machine with this structure can accurately control the amount of blanking, the concrete will fall by its own gravity after reaching the outlet, so the problem of loose blanking has not been solved. Due to the characteristics of hysteresis, the large power required for the rotation of the dragon, the energy consumption and the wear of the dragon are high, which makes the use cost higher

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