Overload-protection thick liquid pump

Abstract

The invention relates to an overload-protection thick liquid pump for conveying thick liquid in the rayon staple industry. An overload-protection device is arranged between a speed reducer and a driving shaft of the overload-protection thick liquid pump, a synchronizing gear box body is in a lubrication structure with independent upper layer and lower layer, and the driving shaft and a driven shaft are sequentially positioned in the lubrication structure with the independent upper layer and lower layer; synchronizing gears are assembled on the driving shaft and the driven shaft, the other ends of the driving shaft and the driven shaft are respectively provided with a guiding key and a rotor expansion sleeve, a three-vane cam rotor is respectively connected with the driving shaft and the driven shaft through the guiding key and the rotor expansion sleeve, mechanical-sealed movable rings of external small springs are respectively fixed on the driving shaft and the driven shaft, mechanical-sealed fixed rings are fixed on a pump shell, one end of the pump shell is connected with the synchronizing gear box body by a fixing member, and the other end thereof is connected with a pump cover by the fixing member. By adopting the independent lubrication structure, the overload-protection thick liquid pump prolongs the using period of lubricants and reduces the energy consumption. The pump has the advantages of strong conveying capacity, low equipment failure rate, long equipment using period and convenient equipment repair and maintenance.

Description

technical field [0001] The invention relates to a pulp and porridge conveying device in the viscose staple fiber industry, in particular to an overload protection pulp and porridge pump. Background technique [0002] At present, most of the domestic viscose staple fiber porridge pumps are rotor pumps. In the pump chamber, two "8"-shaped rotors or three-lobed cam rotors are installed on a pair of parallel shafts, driven by a pair of gears. to the synchronous rotational movement. There is a certain gap between the rotors and between the rotor and the inner wall of the pump casing, which can realize the transportation of materials. The general conveying capacity is about 3.53 liters / rev. The existing oil tank is an integral oil tank, and the two pump shafts are lubricated in the same oil tank. When the upper shaft is in the lubricating position, the lower shaft is completely immersed in the lubricating oil. Consumption is easy to denature the lubricating oil, which is not co...

AI Technical Summary

Problems solved by technology

The existing oil tank is an integral oil tank, and the two pump shafts are lubricated in the same oil tank. When the upper shaft is in the lubricating position, the lower shaft is completely immersed in the lubricating oil. The work done by the shaft rotation will increase the temperature of the lubricating oil. Consumption and easy to denature the lubricating oil, which is not conducive to lubrication

Moreover, the rotor and the shaft are connected by splines. Because the materials are likely to be mixed with iron wires and other sundries, it is easy to cause accidents such as pump jams.

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