Lubrication structure

1 . A lubrication structure comprising:

a shaft that has therein an oil passage having a bottom and extending in an axial direction; and

a pipe that is open at both ends and that is disposed in the oil passage along the shaft, wherein

the shaft includes a plurality of discharge channels extending from the oil passage toward an outer side in a radial direction, and being open at an outer circumference of the shaft,

the plurality of discharge channels are provided so as to be spaced from each other in the axial direction,

the pipe includes a partition provided on an outer circumference of the pipe, and

the partition is located between openings of adjacent ones of the plurality of discharge channels, and is in contact with the oil passage, wherein the oil passage has bottoms at both ends in the axial direction, the shaft includes an injection channel extending from the oil passage toward the outer side in the radial direction and being open at the outer circumference of the shaft, and the pipe includes a first cut which is an obliquely cut part of a first end.

2 . The lubrication structure according to claim 1 , wherein

the pipe includes a spacer provided on the outer circumference of the pipe so as to be spaced from the partition in the axial direction, and

the spacer is in contact with the oil passage, and includes a hole through which oil passes.

3 . The lubrication structure according to claim 1 , wherein the pipe includes a second cut which is an obliquely cut part of a second end.