Screw vacuum pump capable of cleaning dust

Abstract

The invention discloses a screw vacuum pump capable of cleaning dust, and relates to the technical field of screw vacuum pumps. The screw vacuum pump capable of cleaning dust comprises a shell device, wherein the shell device comprises a shell, the front end of the lower side of the shell is fixedly connected with an air outlet in a penetrating mode, the middle of the upper side of the air inlet is fixedly connected with an air inlet in a penetrating mode, the front end and the rear end of the shell are fixedly connected with connecting columns, the outer sides of the connecting columns are sleeved with connecting rings, the lower ends of the two connecting rings are jointly connected with a base, a main body device is arranged in the shell and comprises a main body motor, an output shaft is installed in the main body motor, the front end of the output shaft extends out of the main body motor, the front end of the output shaft is fixedly connected with an isolation plate, and the outer side of the output shaft is fixedly connected with a first gear. According to the screw vacuum pump capable of cleaning the dust, when the screw vacuum pump works, the internal temperature is always kept stable, and normal work of the screw vacuum pump is facilitated while particles adsorbed on the inner wall of the shell are cleaned.

Description

technical field [0001] The invention relates to the technical field of screw vacuum pumps, in particular to a screw vacuum pump capable of cleaning dust. Background technique [0002] The screw vacuum pump is an air extraction device that uses a pair of screws to perform synchronous high-speed reverse rotation in the pump casing to generate air suction and exhaust. For gas occasions with a small amount of dust, the two screws are calibrated by fine dynamic balance, supported by bearings, and installed in the pump casing. There is a certain gap between the screws, so when the pump is working, there is no friction between them, the operation is stable, and the noise is low. Low, the working chamber does not need lubricating oil. Therefore, the dry screw pump can pump out the gas containing a large amount of water vapor and a small amount of dust. The ultimate vacuum is higher, the power consumption is lower, and it has the advantages of energy saving and maintenance-free. [...

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Problems solved by technology

[0003] The publication (announcement) number is CN109723643A, which discloses a screw vacuum pump capable of cleaning dust, including a base, a vacuum pump body is provided at the top end of the base, and a screw rotor is provided in the inner cavity of the vacuum pump body, and the screw rotor is far away from the One end surface of the three-phase asynchronous motor is provided with a helical blade, one side of the helical blade is provided with an active screw, the surface of the active screw is sleeved with an active nut, and the top of the active nut is fixedly connected with a scraper plate , and the scraping plate is connected with the vacuum pump body, when the inhaled dust adheres to the surface of the inner cavity of the vacuum pump body, the dust on the surface can be scraped off. It is proposed that when the existing screw vacuum pump is in use, the dust contained in the gas will be Pumped into the pump together, part of the dust entering the pump body will not be discharged from the air outlet along with the gas, but will adhere to the inner shell surface of the pump body, and long-term accumulation will affect the work of the vacuum pump and reduce work efficiency. However, the direct contact between the scraper plate and the pump inner shell will cause the pump inner shell to heat up rapidly due to friction. Excessive temperature will not only cause damage to the pump body and the scraper plate, but also cause high temperature and severe dust environment. Dangerous issues such as explosions

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