Closed three-roller air-cushion conveyor

Abstract

The invention provides a closed three-roll air cushion conveyer. According to the closed three-roll air cushion conveyer, a charge port is arranged in one side of a shell, and a discharge port is arranged in the other side of the shell; a drive roller is arranged in the shell at one side of the discharge port; a driven roller is arranged in the shell at one side of the charge port; the drive roller is connected with the driven roller through a belt; an air inlet port is arranged in the shell; a plurality of inclined carrier rolls and horizontal carrier rolls are arranged on the shell along an advance direction of the belt; each two paired inclined carrier roll and horizontal carrier roll are arranged in a staggered manner; an air chamber is arranged in a bottom plate of the shell; the air chamber is arranged along a length direction of the shell; the air inlet port communicates with the air chamber through a pipeline; air outlet holes are arranged in the bottom plate of the shell; and the air outlet holes are corresponding to the bottom surface of the belt. According to the closed three-roll air cushion conveyer provided by the invention, an air blowing device is arranged at the bottom of the airtight shell, the return belt is blown through the air blowing device during return of the conveyer belt, and an air cushion is formed between the return conveyer belt and the inner bottom surface of the shell, thus friction between the return conveyer belt and the inner bottom surface of the shell is prevented, the service life of the belt is ensured, and the energy consumption of the conveyer is reduced.

Description

Technical field: [0001] The invention belongs to the technical field of grain transportation machinery and equipment, and in particular relates to a closed three-roller air cushion conveyor. Background technique: [0002] At present, belt conveyors are usually used in the grain transportation process. Most of the existing belt conveyors are open conveyors. During the grain transportation and lifting process, a large amount of light and fine impurities and dust in the grain will be scattered. Into the air, resulting in a large amount of dust when the grain is put into storage, and a large amount of dust floating in the air brings bodily harm to the operators and also pollutes the environment. To this end, the technicians developed a closed conveyor, and connected the exhaust device to the casing, which can suck away the dust and light impurities in the process of grain transportation, so as to remove the dust and light impurities and prevent dust and slight impurities to pol...

AI Technical Summary

Problems solved by technology

[0002] At present, belt conveyors are usually used in the grain transportation process. Most of the existing belt conveyors are open conveyors. During the grain transportation and lifting process, a large amount of light and fine impurities and dust in the grain will be scattered. into the air, resulting in a large amount of dust when the grain is put into storage, and a large amount of dust floating in the air will cause bodily harm to the operators and pollute the environment

To this end, the technicians developed a closed conveyor, and connected the exhaust device to the casing, which can suck away the dust and light impurities in the process of grain transportation, so as to remove the dust and light impurities and prevent dust and slight impurities to pollute the air, however, this kind of closed conveyor can generally only be used as figure 1 The two ends shown are single-roller conveyors with tapered middle straight rollers. When the conveyor belt returns, the conveyor belt directly contacts the wear-resistant plate on the inner bottom surface of the casing of the closed conveyor. In addition, the conveyor rollers The tapered structure at both ends, the diameter of the conveying roller is different, but the speed is the same, which leads to the different linear speed of the tapered surface. After the belt contacts the tapered surface, the friction force received by different positions of the belt is different, resulting in a larger internal friction of the belt. , the belt bears a large frictional force, and the conveyor requires a large amount of power, resulting in serious waste of energy. At the same time, the belt is severely worn and has a short service life.

In addition, the dust in the process of grain transportation is easy to enter the roller bearing, which increases the friction of the bearing and reduces the service life of the bearing.

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