Cylinder part tapping chuck of mini-tiller

Abstract

The invention discloses a cylinder part tapping chuck of a mini-tiller. The cylinder part tapping chuck comprises a taper shank, a right friction plate, a left friction plate, a transmission shaft, a nut, a screw tap fixing seat, a taper sleeve and a steel ball which are arranged from right to left in sequence along the axial direction, wherein the right end of the taper shank has taper; a threaded sleeve is arranged on the outer edge of the transmission shaft in a sleeving manner; the outer edge of the threaded sleeve is provided with external threads; the left end of the taper shank is provided with a groove; the groove is in threaded connection with the threaded sleeve; the left end of the transmission shaft is provided with a boss; the right friction plate is connected between the right end face of the boss and the bottom surface of the groove; the left friction plate is connected between the left end face of the boss and the threaded sleeve; the nut is connected to the outer edge of the threaded sleeve and is abutted against the end face of the groove; the right end of the taper tap fixing seat is arranged at the right end of the transmission shaft in the sleeving manner and is in pin connection with the transmission shaft, and the left end of the taper tap fixing seat is provided with a mounting hole; the side wall of the mounting hole is provided with a sliding chute for the steel ball to slide; the sliding chute leads into the mounting hole; the middle part of the screw tap fixing seat is in threaded connection with the right end of the taper sleeve; an inner conical hole in the left end of the taper sleeve extends to the steel ball. According to the scheme, a screw tap can be protected.

Description

technical field [0001] The invention relates to a tapping chuck for barrel parts of a tiller. Background technique [0002] Tillers are powered by small diesel engines or gasoline engines, and have the characteristics of light weight, small size, and simple structure. Tillers are widely used in dry land, paddy fields, orchards, etc. in plains, mountains, and hills. Equipped with corresponding equipment, it can be used for pumping, power generation, spraying, spraying and other operations, and can also be towed for short-distance transportation. The tiller can be used freely in the field, which is convenient for users to use and store, eliminating the need for large-scale agricultural machinery to enter The troubles of mountainous fields are the best choice for farmers and consumers to replace cattle plowing. [0003] The micro tillage machine is provided with cylindrical parts in order to connect the traveling wheel and the power output shaft, and threaded holes need to be...

AI Technical Summary

Problems solved by technology

[0003] The micro tillage machine is provided with cylindrical parts in order to connect the traveling wheel and the power output shaft, and threaded holes need to be processed in the cylindrical parts so that the connection can be fastened on the power output shaft by screws. When tapping cylindrical parts, the tap is often broken due to the sudden increase of cutting force, which greatly affects the production efficiency

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