Concrete mixer truck for underground coal mine

Abstract

The invention relates to a concrete mixer truck for an underground coal mine, which is used for transporting concrete in the underground coal mine. A mixing tank of the concrete mixer truck for the underground coal mine is arranged in an inclined way, wherein the top of the back end of the mixing tank is movably connected with a feed hopper; in a feeding process, the mixing tank can be fed while rotating, with great convenience and quickness; and in a discharging process, due to addition of a discharge hopper, concrete can be prevented from falling onto the ground. In a hydraulic system, oil pressure of a mixing tank speed regulating system is matched with oil pressure from a working hydraulic system so as to supply power to rotation of the mixing tank, so that energy is saved and cost is reduced; and a cleaning device is fixed at the outer part of the mixing tank and is used for cleaning the interior and the exterior of the mixing tank respectively, and a water tap is arranged for worker cleaning, so that the mixing tank can be conveniently and quickly cleaned.

Description

technical field [0001] The invention relates to a concrete mixer truck used in underground coal mines, which is used for transporting concrete in underground coal mines. Background technique [0002] In the coal mining industry, concrete mixer trucks are needed to transport concrete underground, but the previous concrete mixer trucks for underground transportation have the following defects: [0003] 1. In the past, the feeding port of the mixing tank was set directly above the tank. When feeding, it was very inconvenient to climb to the top of the mixing tank to feed, and the feeding channel inside the tank was spiral, and a certain amount of concrete was added. Finally, it is necessary to cover the feeding port and turn the tank body, and the concrete will drop to the bottom of the feeding channel to continue feeding, which will cause feeding inconvenience. [0004] 2. In the past, the mixing tank was placed horizontally at the rear of the mixer truck, and its discharge p...

AI Technical Summary

Problems solved by technology

[0003] 1. In the past, the feeding port of the mixing tank was set directly above the tank. When feeding, it was very inconvenient to climb to the top of the mixing tank to feed, and the feeding channel inside the tank was spiral, and a certain amount of concrete was added. Finally, it is necessary to cover the feeding port and turn the tank body to drop the concrete to the bottom of the feeding channel to continue feeding, which will cause inconvenient feeding

[0004] 2. In the past, the mixing tank was placed horizontally at the rear of the mixer truck, and its discharge port was opened at the rear end of the tank body. When unloading the concrete, the discharge port needs to be opened first, and this process can easily cause the concrete to fall On the ground, it is inconvenient for unloading

[0005] 3. In the past, the speed of the mixing tank was controlled by the variable pump, which was connected to the explosion-proof diesel engine through the gearbox, and the speed of the variable motor was controlled by the swash plate of the variable pump, so as to control the speed of the mixing tank. Using high torque gearbox

[0006] 4. Since the concrete in the mixing tank needs to be stirred all the time, the required speed is different when the loading is different. However, the rotating speed of the previous mixing tank is always stable at 4-16 rpm regardless of the internal loading. energy is wasted

[0007] 5. There is no cleaning equipment on the mixer truck in the past. When it is necessary to clean the inside and outside of the tank of the mixer truck, it needs to be driven to a special cleaning place, which is not convenient for cleaning.

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