Water pump coupling

Abstract

The invention discloses a water pump coupling, and particularly relates to the field of coupling manufacturing. The water pump coupling comprises a lower shaft sleeve, wherein a lower chuck is fixedly installed on the top surface of the lower shaft sleeve, an upper chuck is connected to the top surface of the lower chuck in a clamped mode, an upper shaft sleeve is fixedly installed on the top surface of the upper chuck, threaded holes are formed in one side of the lower shaft sleeve and one side of the upper shaft sleeve, and matched set screws are arranged in the threaded holes. Plug pin grooves are formed in the inner walls of the lower shaft sleeve and the upper shaft sleeve, square holes are formed inside the lower chuck and the upper chuck and penetrate through the lower chuck and the upper chuck, and a locking plug pin is fixedly installed in the square holes of the lower chuck and the upper chuck. According to the water pump coupling, the connection principle of a tenon-and-mortise structure is used for reference, the lower chuck and the upper chuck which are same in structure and specification are utilized, and therefore a connection gap between the lower chuck and the upper chuck can be reduced to a large extent, the mutual movement between couplings in the electric working process is reduced, swing of the couplings is avoided, the coaxiality between a motor shaft and a pump shaft in the motor working process can be improved, and the normal work of the whole water pump is ensured.

Description

technical field [0001] The invention relates to the technical field of shaft coupling manufacture, and more specifically, the invention is a water pump shaft coupling. Background technique [0002] The existing water pump coupling is a claw coupling, and the three-jaw coupling for the pump is made of several non-metallic material pins, which are placed between the two halves of the coupling and the inner surface of the outer ring. In the hole, the two halves of the coupling are connected through the transmission torque of the column pin. The coupling has the following characteristics: the transmission torque is large, and the rotation diameter is mostly smaller than the gear coupling at the same torque, and the volume is small. It is light in weight and can partially replace the gear coupling; compared with the gear coupling, it has a simpler structure, fewer components, and is more convenient to manufacture, without the need for gear processing machines. [0003] However, ...

AI Technical Summary

Problems solved by technology

[0003] However, in actual use, there are still some shortcomings. For example, the shaft coupling makes the connection between the shaft and the shaft a gap connection, so the coaxiality is poor. Swing affects the overall working performance of the water pump. In addition, when the coupling rotates at high speed, it will generate a lot of heat and mechanical wear. The heat needs to be dissipated through the shaft. On the one hand, the mechanical wear can be reduced by lubricating oil.

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