Novel wheel type acting device

Abstract

The invention provides a technical scheme of a novel wheel type acting device. According to the scheme, the centrifugal fan comprises a shell and an impeller, the impeller is composed of an impeller body, an impeller shaft and blades. The blades are fixed on the wheel body; the wheel body is fixed to the wheel shaft and installed in an inner wheel cavity of the shell. A bearing is arranged in thewheel shaft upper shell; tongue pieces with the same width as the blades are arranged on the anticlockwise sides of the top edges of the blades; the other edge of the tongue piece can slide up and down along the blade surface of another adjacent blade by taking the connecting shaft as the axis; an auxiliary cavity is formed in the periphery of the wheel cavity, corresponding to the impeller blades, of the semicircle, farthest away from the exhaust port, of the air inlet of the wheel cavity in the shell and communicated with the wheel cavity; a control valve is arranged on the air inlet; the air inlet is communicated with the air inlet channel; the exhaust port is communicated with the exhaust channel.

Description

technical field [0001] The invention relates to a work machine, in particular to a wheeled work device. Background technique [0002] Among the existing technologies, the technology closest to this application is a patent for a new type of pneumatic impeller with a patent number of 2013100075126 filed on January 9, 2013. In this patented technology, the number of times the high-energy gas acts on the impeller blades is one week. Once, that is to say, the high-energy gas only acts on each blade of the impeller once per rotation of the impeller, which is a typical single-stage power impeller. The energy conversion efficiency of a single-stage power turbine is relatively low, especially at low speeds. , higher fuel consumption, and smaller output torque. In order to improve energy conversion efficiency, reduce fuel consumption, and increase output torque, the typical representative of wheeled power devices in the prior art is a turbine engine, which is installed in series with ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a new type of wheel-type work device that can achieve the same work effect as the multi-stage work impeller in view of the deficiencies in the prior art. Perform work on the impeller blades multiple times, that is, let the same high-energy gas perform work on the impeller blades multiple times on a single work impeller, achieve the work effect that can only be achieved by a multi-stage work impeller mechanism, and improve the energy conversion of high-energy gases on a single work impeller Efficiency, improving the low energy conversion efficiency of a single power impeller, reducing the number of individual power impellers with the same energy conversion efficiency, reducing the volume and weight, reducing its manufacturing cost, and making the wheeled power device available on land. widely used and popularized

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