Power head for water well drilling rig

Abstract

The invention discloses a powerhead for a water well drilling rig. The power head includes a hydraulic motor, a speed changing box, a centre shaft, a bearing chamber, an air seal seat, a scroll, and abit, which are successively distributed from top to bottom, and a power output shaft is arranged on the hydraulic motor; the speed changing box includes a speed changing box upper cover, a connectingshaft casing and planet gears, the bearing chamber is internally connected with an upper tapered roller bearing, a lower tapered roller bearing, and a cylinder roller bearing; the powerhead for the water well drilling rig has the advantages ofsimple structure, small size and flexibility, is convenient to transport, and has good passing ability and high regional adaptability; operation is easy andcan be completed by single person; the ability of the central shaft to withstand combined axial and radial loads dominated by axial loads is increased by tapered roller bearings; the ability of the central shaft to bear the radial load is increased by the cylinder roller bearing to prevent the central shaft from being inclined; and the planet gears work in the same working shaft, havestable structure property, uniform force, and can prevent the radial tilt of the power head.

Description

technical field [0001] The invention belongs to the technical field of water well drilling rigs, and in particular relates to a power head for a water well drilling rig. Background technique [0002] The power head is a power component that can realize main movement and feed movement, and has automatic workpiece circulation. At present, most of the power heads used for drilling rigs are complex and heavy in design, the disassembly and maintenance process is complicated, and the transportation is inconvenient, and they are severely restricted by the area; the traditional power head has only two tapered roller bearings installed opposite to each other, and the center shaft is easy. Inclined; the traditional gearbox works on different working shafts, the contact area is small, and it is easy to cause misalignment; the lubricant used in most power heads is butter, which will dry and agglomerate after a period of operation, and the lubrication effect is poor, causing mechanical p...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a power head for water well drilling rigs, to solve the problems of complex and bulky design of most power heads for drilling rigs proposed in the above background technology, complex disassembly and maintenance process, inconvenient transportation, and severe regional restrictions; There are only two tapered roller bearings installed opposite to each other in the traditional power head, and the central axis is easy to tilt; the traditional gearbox works on different working shafts, the contact area is small, and misalignment is easy to occur; the lubricant used in most power heads is butter, After running for a period of time, it will dry and agglomerate, and the lubrication effect is poor, causing the problem of mechanical parts wear

Images