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US 12,768,430 B2Granted
System with a planetary gearbox
AssigneeDana (WUXI) Technology Co., Ltd.
InventorsLing Dong, Ke Liu, Fabio Beccari
Life of this patent
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Abstract
Systems and methods for a drilling machine. The drilling machine system, in one example, includes a gearbox with a planetary reduction and a floating input coupling directly coupled to or formed in a sun gear shaft that is included in the planetary reduction. Further, in the drilling machine system, the input coupling is unsupported by a bearing and rotational axes of the floating input and the sun gear shaft are coaxially arranged.
Claims15
A drilling machine system, comprising:
- a gearbox including:
- a planetary reduction;
- and
- a floating input coupling directly coupled to or formed in a sun gear shaft that is included in the planetary reduction;
- a motor rotationally coupled to the floating input coupling;
- and
- wherein an oil is contained within a housing of the gearbox and has a level that is vertically below an interface between the floating input coupling and a sun gear;
- wherein the floating input coupling is unsupported by a bearing;
- and
- wherein rotational axes of the floating input coupling and the sun gear shaft are coaxially arranged.
7 more elements
A method for operation of a drilling machine system, comprising:
- transferring rotational energy from a motor to a floating input coupling in a gearbox;
- wherein the gearbox includes:
- a planetary reduction;
- and
- the floating input coupling directly coupled to or formed in a sun gear shaft that is included in the planetary reduction;
- wherein the floating input coupling is unsupported by a bearing;
- wherein rotational axes of the floating input coupling and the sun gear shaft are coaxially arranged;
- wherein the rotational axes are vertically arranged;
- and
- wherein a level of oil within the gearbox is vertically below an interface between the input coupling and a sun gear.
7 more elements
A drilling machine system, comprising:
- a gearbox including:
- a simple planetary reduction solely including a grounded ring gear, a carrier directly coupled to an output coupling, a plurality of planet gears that are rotationally coupled to the carrier and mesh with the ring gear, and a sun gear that includes a sun gear shaft, wherein the sun gear meshes with the plurality of planet gears;
- and
- a floating input coupling directly coupled to or formed in the sun gear shaft that is included in the simple planetary reduction;
- wherein the floating input coupling is unsupported by a bearing;
- and
- wherein an oil is contained within a housing of the gearbox and has a level that is vertically below an interface between the floating input coupling and the sun gear;
- and
- a motor directly rotationally coupled to the floating input coupling.
6 more elements
Dependencies are inferred from the claim text.