Overload protecting structure of mud pump

Abstract

The invention provides an overload protecting structure of a mud pump, the rotating shaft of the drive motor thereof is connected with the rotating shaft of the mud pump by a torque transmitting sleeve, the end part of the rotating shaft of the drive motor and the end part of the rotating shaft of the mud pump in the toque transmitting sleeve have a clearance, the rotating shaft of the drive motor and the rotating shaft of the mud pump are respectively fixed to the wall of the torque transmitting sleeve by overload protecting pins, the overload protecting pin for fixing the rotating shaft of the drive motor and that for fixing the rotating shaft of the mud pump are in orthometric distribution; the maximal shearing force of the overload protecting pins is preset according to the rated shearing force of the drive motor determined by the overload test. The invention can effectively prevent the blocking of the mud pump due to the pump cavity flow path and the burning of the drive motor caused by the overlarge shearing force for rotating the bearing.

Description

technical field [0001] The invention relates to an overload protection structure of a sludge pump. Background technique [0002] In engineering or life, the application of sludge pumps is becoming more and more extensive, and the sewage to be treated is becoming more and more complex. Often, the flow channel of the sludge pump will be blocked and the drive motor will burn out. For the sludge pump, the cost of driving the driving motor accounts for a large part of the whole cost, and the loss caused by the burning of the driving motor is quite large. [0003] At present, there are many new types of sludge pumps on the market that are said to prevent the clogging of the flow channel of the pump cavity, such as adding a reamer, changing the shape of the impeller or blade, etc. These improvements, although they have a certain effect on alleviating the blockage of the flow channel of the sludge pump, But still haven't fundamentally solved this problem. Contents of the inventio...

AI Technical Summary

Problems solved by technology

[0002] In engineering or life, the application of sludge pumps is becoming more and more extensive, and the sewage to be treated is becoming more and more complex. Often, the channel of the sludge pump is blocked and the drive motor is burned.

For sludge pumps, the cost of driving the drive motor accounts for a large part of the entire cost, and the loss caused by the burning of the drive motor is quite large

[0003] At present, there are also many new sludge pumps on the market that are said to prevent the blockage of the flow channel of the pump chamber, such as adding a reamer, changing the shape of the impeller or blade, etc. These improvements, although they have a certain effect on alleviating the blockage of the flow channel of the sludge pump, But still didn't solve the problem fundamentally

Images