NBD planetary bidirectional-output pile machine reducer with oil temperature alarming function

Abstract

The invention relates to the technical field of pile machine reducers, in particular to an NBD planetary bidirectional-output pile machine reducer with an oil temperature alarming function. The reducer comprises a case, motors, a cover plate and a gear transmission part, and is characterized in that an oil temperature sensor is arranged in the case, labyrinth vent hoods are arranged on the cover plate, and each labyrinth vent hood comprises an outer housing, a labyrinth shell and an exhaust pipe; the two motors are inversely connected to the lower portion of the case, and the shaft extending ends of the motors are connected with NBD planetary reducer bodies; the gear transmission part comprises an outer engaging pair and an inner engaging pair, wherein the outer engaging pair comprises driving wheels, dividing gears and outer teeth of a central ring, and the inner engaging pair comprises inner teeth of the central ring, five quasi-planetary wheels and a central wheel; the central ring is connected with an outer sleeve which is supported in a central hole of the case through bearings, and the outer sleeve is connected with a base plate which is connected with a large sleeve through a flange; the central wheel is connected with an inner barrel which is supported in the outer sleeve through bearings, and the inner barrel is connected with a drill rod sleeve. The reducer has the beneficial effects that the dynamic condition of the reducer can be mastered, internal air pressure and external air pressure of the case are balanced, the inverse motors reduce the overturning moment of a pile machine, and the probability of overthrow accidents is lowered.

Description

【Technical field】 [0001] The invention relates to the technical field of double-motor pile driver deceleration, and relates to an oil temperature alarm NBD planetary two-way output pile driver reducer. 【Background technique】 [0002] With the rapid development of my country's economy, construction machinery has been widely used, and the long screw pile machines used as infrastructure are scattered all over the world. As a result, the demand for pile machines has increased sharply. Said: "There is even a phenomenon of queuing up to pick up the goods at the pile driver factory with a large amount of money. The three-ring reducer manufacturer that matches the power head with the pile driver factory has increased its output so that each pile driver manufacturer can supply a complete set Goods." (See Science and Fortune, 2013.01) Background technique: [0003] (1) The invention patent of China Sunward Intelligent Equipment Co., Ltd. "Separate Drive Casing Auger Drilling Machine ...

AI Technical Summary

Problems solved by technology

The disadvantage of the ventilation hood (JB1130-70) is: the exhaust hole is too small (the maximum diameter of the straight hole in the box is only Φ20mm, and the small hole outside the box that is in contact with the environment is even smaller)

For the pile driver reducer, the disadvantages of the ventilation cover (JB1130-70) are even more obvious: open-air operation, large dust, and the small exhaust holes will gradually become smaller after the dust sees water, so that the ventilation cover will gradually lose the inside and outside of the box. Pressure balance, when the air pressure inside the box is greater than the air pressure outside the box, the lubricating oil will leak from the seal;

[0012] (c) Disadvantages of top-mounted dual motors: Due to the harsh working conditions on the construction site, most operators do not have maintenance equipment and skills, and the heavy motors and reducers are difficult to remove down, so it is difficult to repair and maintain, and the cap on the top of the motor is difficult to waterproof and even more difficult to prevent dust

The top-mounted dual motors have a high center of gravity and a large overturning moment, which may cause overturning accidents

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