Novel vertical oil-less pump

Abstract

The invention relates to a novel vertical oil-less pump, comprising a rack (15), a pump body and a motor (14) connected with the pump body, wherein the pump body is internally provided with a transmission component, the transmission component comprises a driving shaft (1) which is connected with an output shaft of the motor (14) as well as a driven shaft (11), transmission ends of the driving shaft (1) and the driven shaft (11) are respectively provided with a bearing (9), the bearings (9) are arranged in through holes arranged on a base (10), the transmission end of the driving shaft (1) is also provided with a driving gear (8), the transmission end of the driven shaft (11) is provided with a driven gear (12) which is meshed with the driving gear (8), and the driving gear (8) and the driven gear (12) are respectively arranged above corresponding bearings of the driving shaft (1) and the driven shaft (2). By adopting the novel vertical oil-less pump disclosed by the invention, workload when the bearings are replaced can be reduced, and lubrication is stable and simple, thus service lives of the bearings and the gears are prolonged and overall stability of the novel vertical oil-less pump is improved.

Description

technical field [0001] The invention belongs to the technical field of vacuum obtaining machinery, and in particular relates to a novel vertical oil-free pump. Background technique [0002] In the existing vertical oil-free pumps with double rotors, the bearing on the transmission end of the shaft is installed on the upper side of the gear. To replace the bearing, the entire pump body must be disassembled, and the gear on the shaft must be removed for maintenance. The workload is heavy, and the bearing lubrication is insufficient, and the service life is short. At the same time, the radial runout of the shaft is large during high-speed operation, and the gears are easy to wear; The problem of seal failure; in addition, the existing vertical oil-free pump does not have a dust-proof mechanism, and dust particles can easily enter the bearing, causing damage to the bearing. Contents of the invention [0003] Aiming at the defects existing in the prior art, the purpose of the ...

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Problems solved by technology

[0002] In the existing vertical oil-free pumps with double rotors, the bearing on the transmission end of the shaft is installed on the upper side of the gear. To replace the bearing, the entire pump body must be disassembled, and the gear on the shaft must be removed for maintenance. The workload is heavy, and the bearing lubrication is insufficient, and the service life is short. At the same time, the radial runout of the shaft is large during high-speed operation, and the gears are easy to wear; The problem of seal failure; in addition, the existing vertical oil-free pump does not have a dust-proof mechanism, and dust particles can easily enter the bearing, causing bearing damage

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