Method for removing pump shaft of marine motor

Abstract

The invention provides a method for removing a pump shaft of a marine motor. A fixed base plate is arranged on a welding frame, flat gaskets and tensioning rod hexagon nuts are installed into a wholewith the welding frame passing through auxiliary tensioning rods, the front end of the fixed base plate is provided with a motor mounting plate, the two sides of the motor mounting plate are fixed through pressing plates, the motor mounting plate is fixed on the fixed base plate through full-threaded hexagonal head bolts, the lower part of the motor mounting plate is provided with a sea water pumpmotor, the upper part of the sea water pump motor is provided with the pump shaft, rotating shaft sleeves are arranged in notches at the front end of a lever, rotating shaft sleeves of the main shaftend are connected by rear pins in a penetrating mode, the upper parts of the rotating shaft sleeves are fixed with hexagon nuts through gaskets, a lever supporting shaft frame is fixed to the fixed base plate through an adjustment base plate, and upper part of the lever supporting shaft frame is fixed with the side of the lever through a middle pin, an oil cylinder is connected to the front partof the lever through a front pin, the upper part of the lever is fixed to the shaft sleeve through an upper pin, an oil cylinder support is connected with the upper part of the welding frame, and a high-frequency induction heating machine is installed on the pump shaft to heat the pump shaft. According to the method, the shaft sleeve is disassembled through high-frequency heating, and the method is suitable for the application as the method for disassembling a marine sea water pump shaft sleeve.

Description

technical field [0001] The invention relates to the field of ships, in particular to a method for removing a pump shaft of a marine motor. Background technique [0002] In the annual docking inspection and repair of various ships, the inspection and repair of the pump is an important project that must be done every time, and the work tasks are very heavy. The motor shaft of the pump is almost completely worn beyond the use requirements in the long-term use of cold-packing, baking-packing, etc. In this case, the out-of-tolerance motor pump shaft must be removed and replaced with a new one. The existing method is: to make a special temporary tool for the removal of a single motor pump shaft, use a hydraulic jack to draw it cold or use a flame heating method, cooperate with a jack to heat it, or use a destructive removal method. After repairing a ship in the above way, multiple sets of temporary dismantling tooling of different types must be made, which wastes a lot of time, m...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of dismantling the pump shaft of the marine motor, the invention proposes a method for dismantling the pump shaft of the marine motor

This method solves the technical problem of dismantling the shaft sleeve of the seawater pump through the disassembly tool of the seawater pump

Images