Driller rotation power head adopting high-order elliptic molded surface active teeth speed changing device

Abstract

The invention discloses a driller rotation power head adopting a high-order elliptic molded surface active teeth speed changing device, the driller rotation power head adopts a general rotation motor as motive power, a tooth surface on an input shaft and the tooth surface of a fixed internal gear are both equidistant curves of a high-order elliptic curve, cylindrical active teeth move in the uniform distribution groove of the input shaft in a sliding and rolling way and contact with the tooth surface on the input shaft and the tooth surface of the fixed internal gear to move in a sliding and rolling way, the tooth surface on the input shaft, the tooth surface of the fixed internal gear, the active teeth and the uniform distribution groove of the input shaft form the active teeth speed changing device, the fixed internal gear is fixedly connected with an engine base, the input shaft and an output shaft are coaxial, the output shaft is supported on the engine base by a bearing, an assistant driving disk is supported on the input shaft by a bearing, the input shaft is supported on the output shaft and the engine base by a bearing, and the output shaft is provided with a hole which iscommunicated with an air chamber fixed on the engine base. The driller rotation power head has the advantage of being a speed changing device which is provided with self-balancing moving parts (such as the input shaft and the like) and can realize any teeth number difference, and the driller rotation power head has convenient disassembly and assembly, large transmitting torque and small radical size and is suitable for rock drilling machinery with heavy load.

Description

technical field [0001] The invention relates to a high-order elliptical surface movable tooth transmission device and a rotary power head of a drilling rig using the device, which belongs to the field of transmission machinery and rock drilling machinery and equipment. Background technique [0002] All kinds of drilling rigs are widely used in blast hole drilling operations in metallurgy, railways, mines, building materials, highways and other projects. The rotary power head of the drilling rig is one of the key components of the drilling rig. Its transmission device requires light weight and low center of mass. The high-speed cutting drill rotary power head requires good dynamic balance characteristics and a wide range of transmission ratios. However, the existing general reducer has a large radial size. It does not meet the requirements of use. The movable tooth reducer is a one-tooth difference eccentric wheel structure, with poor dynamic balance characteristics, and the ...

AI Technical Summary

Problems solved by technology

The rotary power head of the drilling rig is one of the key components of the drilling rig. Its transmission device requires light weight and low center of mass. The high-speed cutting drill rotary power head requires good dynamic balance characteristics and a wide range of transmission ratios. However, the existing general reducer has a large radial size. Does not meet the requirements of use, the movable tooth reducer is a one-tooth difference eccentric wheel structure, the dynamic balance characteristic is poor, and the rotary power head needs to be specially designed

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