Muddy water preventing structure suitable for various states of power head

Abstract

The invention relates to a muddy water-proof structure suitable for various states of a power head, which comprises a driving sleeve, a mud-proof outer ring, a connecting flange, an upper oil seal box, an upper oil seal, a power box body and a transmission sleeve, the lower flange surface of the driving sleeve is connected with the upper flange surface of the connecting flange, and the outer side surface of the driving sleeve is connected to the mud-proof outer ring; the lower flange face of the connecting flange is connected with the upper flange face of the transmission sleeve, a mud-proof inner ring is arranged in a space formed by the driving sleeve, the connecting flange, the mud-proof outer ring and the transmission sleeve, the mud-proof inner ring is connected with the upper flange face of an upper oil seal box, the lower flange face of the upper oil seal box is connected to a power box body, and the inner side face of the upper oil seal box is connected with an upper oil seal. The upper oil seal makes contact with the transmission sleeve to form sealing. Through the simple structural design, mud, rainwater and the like can be effectively prevented from entering the power box body when the power head of the rotary drilling rig is in the working state and the transportation state, and therefore long-term good operation of the power head is effectively protected.

Description

technical field [0001] The invention relates to an anti-mudwater intrusion structure, in particular to an anti-mudwater structure suitable for various states of a power head. Background technique [0002] At present, the rotary drilling rig is mainly used as a pile hole-forming operation equipment in various types of house construction, bridges, subway foundation construction, etc. The quality and reliability of the power head as the working device of the rotary drilling rig are particularly important. [0003] In the construction conditions of the rotary drilling rig, most of the mud medium will be used, and the drilling rig will frequently lift and release the drill pipe. During this process, the power head is in a vertical state, and the drill pipe will carry the mud in the hole. The dripping drops on the power head, and it will form accumulation over time, causing the mud to enter the power head box, contaminate the lubricating oil inside the box, and cause early gear we...

AI Technical Summary

Problems solved by technology

[0006] At present, most power heads in the world have no anti-mud ring or only the outermost anti-mud steel ring. After the mud is accumulated, sewage can easily enter the inside of the power head box and contaminate the lubricating oil.

There are a small number of power heads designed with inner anti-mud steel rings, but no special structural design is carried out. When the high-pressure water gun is flushing or the power head is in the transportation state in rainy days, sewage is easy to enter the inside of the power head box. The power head is designed with an outer protective seal, but due to the harsh environment and lack of lubrication, it is very easy to cause damage, thereby reducing the effect of mud and water resistance

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