Five-throw four-support crankshaft of diaphragm pump

Abstract

The invention discloses a five-throw four-support crankshaft of a diaphragm pump. The five-throw four-support crankshaft comprises a left double-throw crankshaft, a middle single-throw shaft and a right double-throw crankshaft which are sequentially connected to bearing supporting seats in a sleeved mode; connection splines are engaged together among the left double-throw crankshaft, the middle single-throw shaft and the right double-throw crankshaft through connection bearings and couplers; the left end of the left double-throw crankshaft is a power input shaft end which penetrates through asupporting bearing A to be connected with one end of the left double-throw crankshaft on the bearing supporting seats; a supporting bearing B is configured at the right end of the right double-throw crankshaft; and a motor of external equipment transmits power to the five-throw four-support crankshaft through the input shaft end. Compared with a traditional integrated crankshaft, during working ofthe five-throw four-support crankshaft, when damage occurs, part of the five-throw four-support crankshaft, especially the left double-throw crankshaft or the middle single-throw shaft or the right double-throw crankshaft only needs to be replaced according to the damage position, thus manpower and material resources are greatly saved, the cost is reduced, and the enterprise competitiveness is improved.

Description

technical field [0001] The invention relates to the technical field of diaphragm pumps, in particular to a crankshaft with five turns and four supports of the diaphragm pump. Background technique [0002] As one of the key components of the diaphragm pump, the crankshaft is easily damaged during the suction and discharge process of the diaphragm pump, which in turn affects the operation of the entire pump. At present, two supports are used for the five-throw crankshaft, and the strength is not easy to guarantee; too many supports will cause over-positioning of the crankshaft. Contents of the invention [0003] In order to overcome the above-mentioned defects of the prior art, the object of the present invention is to provide a crankshaft with five turns and four supports of a diaphragm pump, which has the characteristics of simple structure, easy replacement and good support performance. [0004] In order to achieve the above object, technical scheme of the present invent...

AI Technical Summary

Problems solved by technology

[0002] As one of the key components of the diaphragm pump, the crankshaft is easily damaged during the suction and discharge process of the diaphragm pump, which in turn affects the operation of the entire pump

At present, for the crankshaft with five turns, two supports are used, and the strength is not easy to guarantee; too many supports will cause over-positioning of the crankshaft

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