Double-drive coaxial forward and reverse output spiral rock-entering drilling machine

Abstract

The invention relates to a double-drive coaxial forward and reverse output spiral rock-entering drilling machine which comprises double input motors, an input shaft, an output shaft, an outer sleeve, four cycloid gear mechanisms and four planetary speed reduction mechanisms. The double input motors are respectively meshed with a gear wheel on the input shaft via pinions, the outer sleeve is coaxially sleeved on the output shaft via a bearing, four eccentric bearings are serially connected into the input shaft and are respectively connected into center holes of four cycloid gears, outer gears are arranged on the outer sides of the cycloid gears and are meshed with internal teeth of a housing case, outer holes are respectively formed in the left side and the right side of each cycloid gear, pins are respectively coaxially and movably arranged in the outer holes and are connected with the output shaft, a center wheel is connected onto the output shaft, and planet gears are uniformly distributed at the peripheral edge of the center wheel in a meshed manner and are meshed with an inner gear ring of the outer sleeve.

Description

technical field [0001] The invention relates to the field of rock-entry equipment for long auger drilling rigs, in particular to a double-drive coaxial forward and reverse output auger-into-rock drilling rig. Background technique [0002] Nowadays, many piles require that the piles must be inserted into the rock in order to ensure high bearing capacity. The rock entry equipment currently used in my country is very backward, basically percussion drilling, with low efficiency and serious mud pollution. China Shanhe Intelligent Equipment Co., Ltd.’s invention patent separate-drive casing auger and its construction method (ZL 200610138353.3) discloses the deceleration drive technology as follows: (1) The inner power head and the outer power head: the former is at the top, and the latter At the bottom, the two power heads are set separately; (2) The driving devices of the inner and outer power heads both adopt dual-motor two-stage NGW planetary reduction, and the output pinion si...

AI Technical Summary

Problems solved by technology

[0003] (1) Since the large gear of the outer power head is connected with the large-diameter casing, the overall size will be large, heavy, expensive and difficult to install;

[0004] (2) Since the upper and lower ends of the box of the outer power head are supported by large-diameter bushings, not only the lubrication state of the bearings is not good, oil leakage is easy, but also the manufacturing cost is high and the installation and maintenance are difficult

Images