Gearbox assembly with axially adjustable bevel gear

A gearbox assembly comprising:

• a gearbox housing having an internal thread and a first conical surface axially spaced from the internal thread;
• a first shaft rotatably mounted to the gearbox housing, the first shaft having a first bevel gear;
• a second shaft rotatably mounted to the gearbox housing at an angle to the first shaft, the second shaft having a second bevel gear meshing with the first bevel gear;
• and
• a quill having an external thread interacting with the internal thread of the gearbox housing and a second conical surface axially spaced from the external thread, the second conical surface being supported on the first conical surface, the first and second conical surfaces tapering towards the second shaft, and a rotation of the quill in relation to the gearbox housing causing an axial adjustment of the first shaft in relation to the second shaft;
• wherein the second shaft extends at least partially through an opening of the gearbox housing.

A gearbox assembly comprising:

• a gearbox housing having an internal thread and a first conical surface axially spaced from the internal thread;
• a first shaft rotatably mounted to the gearbox housing, the first shaft having a first bevel gear;
• a second shaft rotatably mounted to the gearbox housing at an angle to the first shaft, the second shaft having a second bevel gear at a first end of the second shaft meshing with the first bevel gear;
• and
• a quill having an external thread interacting with the internal thread of the gearbox housing and a second conical surface axially spaced from the external thread, the second conical surface being supported on the first conical surface, the first and second conical surfaces tapering towards the second shaft, and a rotation of the quill in relation to the gearbox housing causing an axial adjustment of the first shaft in relation to the second shaft;
• wherein the second bevel gear tapers towards the first end of the second shaft.