Cutter head feeding and retraction transmission control mechanism of emergency rescue fast anti-explosion tapping equipment

Abstract

The invention discloses a cutter head feeding and retraction transmission control mechanism of emergency rescue fast anti-explosion tapping equipment. A driving shaft is connected with a cutter head sleeve through a flat key and drives the cutter head to rotate, a driving gear on the driving shaft is connected with a nut gear on a feeding sleeve through a feeding control mechanism, and the nut gear drives the axial movement of the feeding sleeve to further achieve cutter feeding or retraction. Manual fast cutter feeding and retraction can be achieved. The feeding sleeve is arranged outside a power shaft, and boring reacting force is transferred to a machine body through the feeding sleeve and the nut gear, so that the problem of cutter movement is solved, unidirectional running protection on a feeding transmission case is further achieved, and furthermore, part collision and extrusion are not caused even when a motor reversely rotates.

Description

technical field [0001] The invention relates to a transmission and control mechanism for cutter feed and retraction. In particular, it relates to a cutter head feed and cutter retraction transmission control mechanism used for emergency rescue quick explosion-proof hole opening equipment cutting. Background technique [0002] The feed movement of the cutting tool head or cutting head of the drilling equipment usually uses a separate feed motor and reducer to achieve power supply, while the power required for tool rotation is provided by another motor, and the two motors work at the same time to complete the cutting and drilling task. . This method has the disadvantages of complex transmission system, loose structure, and large equipment volume. [0003] The Chinese utility model patent with the authorized announcement number CN2352291Y discloses a "self-advancing manual pipeline drilling machine", which uses a single motor to drive the drill pipe to rotate and feed. It has...

AI Technical Summary

Problems solved by technology

However, this kind of machine is only suitable for drilling operations with a maximum diameter of about 10 mm. If using its principle to open a channel with a diameter of about 500 mm, there will be many technical problems. , when cutting, the reaction force received by different cutter heads will be transmitted to the spindle, which will cause the spindle to swing, and the hole cannot be opened normally

[0004] In addition, during the cutting and opening operation, if the tool needs to be fed quickly, the existing cutterhead feed transmission and control mechanism needs power switching, which affects work efficiency. When used for ship drilling and rescue, it is easy to delay the time to save people.

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