The invention relates to the technical field of
pile machine speed reduction, and provides an oil-temperature warning star-wheel two-way outputting
pile machine speed
reducer. The oil-temperature warning star-wheel two-way outputting
pile machine speed
reducer comprises a case body, motors, a cover plate and a
gear transmission part. The oil-temperature warning star-wheel two-way outputting pile machine speed
reducer is characterized in that an
oil temperature sensor is arranged in the case body, labyrinth type vent hoods are arranged on the cover plate, each labyrinth type vent hood comprises an outer shell, a labyrinth shell and an
exhaust pipe, the motors are connected to the lower portion of the case body in an inverted mode, the drive ends of the motors are connected with star-wheel speed reducers, the
gear transmission part comprises an external meshing pair and an internal meshing pair, the external meshing pair comprises driving wheels, diffluence gears and outer teeth of a center circle, the internal meshing pair comprises inner teeth of the center circle, five quasi planetary wheels and a center wheel, the center circle is connected with an outer sleeve which is supported in a center hole of the case body through bearings, the outer sleeve is connected with a base plate, and a base plate
flange is used for being connected with a pile machine big casing; the center wheal is connected with an inner
barrel which is supported in the outer sleeve through bearings, and the inner
barrel is connected with a
drill pipe sleeve. The oil-temperature warning star-wheel two-way outputting pile machine speed reducer has the advantages that the dynamic state of the speed reducer can be mastered, the air pressure inside and outside the case body is balanced, the tilting moment of the pile machine is reduced through the inverted motors, and the probability of tilting accidents is reduced.