Shaft coupler
Assignee886 496 Ontario Inc.
InventorFred Blumentrath
Life of this patent
Estimating the term…
Abstract
The invention relates to a coupling for fixedly, i.e. non-flexibly, connect free ends of two shaft together. The connection is releasable. A typical field of application is in pumps. The coupling has one generally cylindric, solid muff adapted to be fixedly secured to one shaft. The other muff is split in two, along a plane parallel with the axis of the respective shaft. All parts are made free of play when they are secured to the shafts. The invention facilitates maintenance work, e.g. in replacement of packing rings in a pump. It also facilitates the manufacture of the coupling.
Claims7
A shaft alignment coupling for rigidly connecting a first shaft end and a second shaft end in an axially spaced, aligned fashion, said coupling comprising a first coupling member and a second coupling member, said first coupling member comprising, in combination:
- a) a first half-muff which includes
- i) a first half-collar defining a generally semi-cylindrical first cavity complementary with a radius of a respective first shaft end;
- ii) a generally planar first longitudinal surface portion parallel with a longitudinal axis of said semi-cylindrical cavity and comprised of two first longitudinal sections, one along each side of the first cavity;
- iii) a first half-flange defining a generally planar first transverse surface portion perpendicular to said longitudinal axis of said semi-cylindrical cavity and disposed at a first axial end of the first half-muff;
- iv) first radial clamping device portion for allowing the clamping of said first half-muff to a second half-muff and to said first shaft end;
- b) said second half-muff including:
- i) a second half-collar defining a generally semi-cylindrical second cavity complementary with a radius of a respective first shaft end;
- ii) a generally planar second longitudinal surface portion parallel with a longitudinal axis of said semi-cylindrical cavity and comprised of two second longitudinal sections, one along each side of the second cavity;
- iii) a second half-flange defining a generally planar second transverse surface portion perpendicular to said longitudinal axis of said semi-cylindrical cavity and disposed at a first axial end of the second half-muff;
- iv) second radial clamping device portion for allowing the clamping of said second half-muff to said first half-muff and to said first shaft end;
- c) at least one of said semi-cylindrical cavities including torque arresting device for non-rotational securement of the first coupling member to the first shaft end;
- d) first connecting device provided in said first and second half-flanges for rigidly connecting the half flanges with said second coupling member;
- e) said second coupling member comprising, in combination:
- i) a generally cylindric sleeve section defining a cylindric passage, the passage having a diameter corresponding to that of the second shaft end and including torque arresting device for non-rotational securement of the second coupling member to the second shaft end;
- ii) a flange integral with the sleeve and defining a generally planar end face portion perpendicular to the axis of said cylindric passage;
- f) second connecting device provided in said flange and being complementary with said first connecting device for rigidly connecting the flange with said half flanges and thus with said first coupling member.
Dependencies are inferred from the claim text.