Two-way output pile machine speed reducer with reverse motors

Abstract

The invention relates to the technical field of pile machine speed reduction. A two-way output pile machine speed reducer with reverse motors comprises a box body, the motors, a cover plate and a gear transmission piece, and is characterized in that the two motors are connected with NBD planet speed reducers and connected to the lower portion of the box body in a reverse manner; the NBD speed reducers are arranged in the box body; the gear transmission piece comprises an outer meshing speed reduction piece and an inner meshing quasi-planet speed increase piece; the outer meshing piece comprises a driving wheel, a diversion gear and an outer gear of a central gear ring; the inner meshing piece comprises an inner gear ring of the central gear ring, a quasi-planet gear and a central gear; mandrels of the diversion gear and the quasi-planet gear are fixed into the cover plate; the central gear ring is connected with an outer sleeve; the outer sleeve is supported in the cover plate through a first bearing and a second bearing; and the central gear is connected with an inner cylinder which is supported in an inner hole of the outer sleeve through a third bearing and a fourth bearing. The two-way output pile machine speed reducer has the beneficial effects that the heavy motors and the speed reducers are easy to detach, and therefore repairing and maintenance are convenient; the overturning moment of a pile machine is reduced, and therefore the probability of turnover accidents is decreased; and water prevention and dust prevention of the motors are facilitated.

Description

【Technical field】 [0001] The invention relates to the technical field of double-motor-driven pile driver deceleration, and relates to a motor-inverted bidirectional output pile driver reducer. 【Background technique】 [0002] (1) The invention patent of China Sunward Intelligent Equipment Co., Ltd. "Separate-drive casing auger and its construction method" (ZL200610138353.3) discloses the following technical characteristics of deceleration drive: [0003] (a) Between the inner power head C and the outer power head D: the former is at the high end, the latter is at the bottom, and the two power heads are separated; [0004] (b) The driving devices in the inner and outer power heads both adopt dual-motor two-stage NGW planetary reduction, and the output pinion drives the middle gear to do work at the same time. Its main problems are: [0005] (1) Since the large gear of the outer power head D is connected to the casing with a large diameter (SWSD3618 drilling diameter is 1.5 m...

AI Technical Summary

Problems solved by technology

[0005] (1) Since the large gear of the outer power head D is connected to the large-diameter (SWSD3618 drilling diameter is 1.5 meters) casing, the overall size will be large, heavy, expensive and difficult to install;

[0006] (2) Since the upper and lower ends of the box of the outer power head D 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

[0011] The problems of background technology (2) to (5) are: the top-mounted dual motors make the center of gravity of the pile driver high, the overturning moment is large, the pile driver has a hidden danger of instability, and the pile driver will overturn.

[0014] (2) On September 07, 2006, at the construction site in front of the Hechuan Building at No. 2010 Yishan Road, Shanghai, a pile driver suddenly overturned, not only crushing the factory building on the side of the road, but also causing an old man to be injured. So it will suddenly tip over, mainly because the soil is too loose and the center of gravity of the pile driver is unstable;

[0017] (1) Due to the harsh working conditions at the construction site, most of the operators do not have maintenance equipment and skills. When a fault occurs, it is difficult to remove the heavy motor and reducer, so it is difficult to repair and maintain;

[0018] (2) Due to the harsh working conditions at the construction site, the cap of the motor is difficult to waterproof and dustproof

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