Shaft coupling device in pump body

Abstract

The invention relates to a shaft coupling device in a pump body and relates to the shaft coupling device. In the shaft coupling device, a clamping groove is formed at the front ends of a pump shaft and a motor shaft; a connecting clamping sleeve is arranged on the clamping groove; a fixed sleeve is arranged on the outer diameters of the connecting clamping sleeve, the pump shaft and the motor shaft; a key groove is formed on the fixed sleeve, the pump shaft and the motor shaft correspondingly; a fixed key is arranged in the key groove; the pump shaft and the motor shaft are positioned through the connecting clamping sleeve; torque is transmitted for the motor shaft and the pump shaft through the connection of the fixed key and the fixed sleeve, so that the deadlock condition caused by the threaded connection of the motor shaft and the pump shaft is avoided; the shaft coupler is easy to disassemble during maintenance, so that the condition that the shaft coupler cannot be disassembled is avoided; time and labor are saved during disassembly, without waste of the motor shaft; the maintenance cost is low; and the shaft coupling device is applicable to various liquid pumps.

Description

technical field [0001] The invention relates to a shaft coupling device, in particular to a shaft coupling device inside a pump body. Background technique [0002] We know that the existing internal coupling device of the pump body is provided with a coupling on the pump shaft and the motor shaft, the pump shaft and the motor shaft are threaded with the coupling, and the motor rotates to lock the pump shaft and the motor shaft Torque, this kind of internal coupling device of the pump body, because the pump shaft and the motor shaft are threaded with the coupling, the rotation of the motor will lock the pump shaft and the motor shaft to transmit torque, as the pump runs for a long time, the thread locking force will change It is very large, and it is difficult to disassemble the coupling during maintenance, or even cannot be disassembled. The motor shaft can only be cut by gas welding, which is time-consuming and laborious, wastes the motor shaft, and the maintenance cost is ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the invention is to solve the problem that the shaft coupling is difficult to disassemble during maintenance, or even cannot be disassembled, and the motor shaft can only be cut by gas welding, which is time-consuming, troublesome to maintain, waste of the motor shaft, and high in maintenance costs. It provides a maintenance The shaft coupling is easy to disassemble, avoiding disassembly, saving time and labor, no need to waste the motor shaft, and the internal coupling device of the pump body with low maintenance costs

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