Improved pump shaft connecting structure of water circulating pump
A connection structure, technology of circulating water pumps, applied in parts, pumps, pump components, etc. of pumping devices used for elastic fluids, can solve problems such as difficult and long installation, and achieve the effect of convenient installation and reduced length
Inactive Publication Date: 2011-10-19
HITACHI PUMP MFG WUXI
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Problems solved by technology
[0003] In view of the above problems, the present invention provides an improved pump shaft connection structure of the circulating water pump, which can effectively solve the problems caused by the cooperation between the sleeve coupling and the pump shafts at both ends in the past when the sleeve coupling is used to connect the pump shafts at both ends. Difficulty in installation due to long face
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[0007] As shown in Fig. 1, the structure of the present invention includes pump shafts 1 and 2 at both ends. The shaft ends of the pump shafts 1 and 2 at both ends are clamped by half clamps 3 and then fixed by sleeve coupling 4. , The outer diameter of the fitting section of the shaft end of the pump shaft 2 on the lower end side is 1mm larger than the outer diameter of the fitting section of the shaft end of the pump shaft 1 on the upper end side. In this embodiment, the outer diameter of the shaft end matching section of the upper pump shaft 1 is φD, and the outer diameter of the shaft end matching section of the lower pump shaft 2 is φD+1.
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The invention provides an improved pump shaft connecting structure of a water circulating pump, which can effectively solve the problem that in the prior art, when a sleeve coupler is used for connecting a two-end pump shaft, the matching surface between the sleeve coupler and the two-end pump shaft is long, so that the installation is difficult in the prior art. The improved pump shaft connecting structure comprises a two-end pump shaft, the shaft end of which is fixed by a sleeve coupler after being clamped and connected by a half-dividing hoop. The improved pump shaft connecting structure is characterized in that the external diameter of each shaft end matching section at the middle end side and the lower end side of the two-end pump shaft is larger than an end matching section at the upper end side of the pump shaft by 1mm.
Description
technical field [0001] The invention relates to the technical field of circulating water pump structures, in particular to an improved pump shaft connection structure of circulating water pumps. Background technique [0002] Generally, the pump shafts at both ends of the circulating water pump are connected and fixed by sleeve couplings. The length of the coupling is longer, and the length of the mating section with the pump shafts at both ends is also longer. During the installation process, the sleeve coupling is prone to be stuck with the pump shafts at both ends, and the installation is difficult. Contents of the invention [0003] In view of the above problems, the present invention provides an improved pump shaft connection structure of the circulating water pump, which can effectively solve the problems caused by the cooperation between the sleeve coupling and the pump shafts at both ends in the past when the sleeve coupling is used to connect the pump shafts at bot...
Claims
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Inventor 卢丽
Owner HITACHI PUMP MFG WUXI