Rotor for a rock crusher

Abstract

A top wear plate for the rotor of a rock crusher, wherein the rotor includes a rotor body, the rotor body having an upper surface. The top plate includes a lip positioned about and descending vertically from the underside of the outer circumference of the lip wear plate, the lip including a protrusion to engage with a complementary recess on the top surface of the rotor body.

Claims

1. A wear plate for use on a rotor of a rock crusher, the rotor having a rotor body including a planar surface including at least one recess, the wear plate comprising: a circular aperture located at a center of the wear plate; a planar underside surrounding the circular aperture and defined by an outer perimeter; a rim positioned about the outer perimeter and descending perpendicular to the planar underside; and at least one protrusion extending perpendicular to the rim and toward the circular aperture, the at least one protrusion including an edge or side extending at a sloping angle relative to the rim.

2. A wear plate as claimed in claim 1, wherein the wear plate includes at least three protrusions.

3. A wear plate as claimed in claim 2, wherein the protrusions are equidistance from each other.

4. A rotor assembly for use in a rock crusher, comprising: a rotor body having an upper surface and a lower surface; and a pair of wear plates each having a circular aperture, a planar underside defined by an outer circumference and a rim positioned about the outer circumference and descending perpendicular to the planar underside, the wear plates each including at least one protrusion extending from the rim and having an edge or side that is at a sloping angle relative to the rim, wherein the upper and lower surface of the rotor body each include at least one recess complementary to the at least one protrusion extending from the rim of each wear plates in the pair of wear plates, wherein the at least one protrusion is configured to engage the at least one recess.

5. A rock crusher, including the rotor of claim 4.

6. A mineral material processing plant, wherein the mineral material processing plant includes the rock crusher of claim 5.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) Further aspects of the present invention will become apparent from the following description which is given by way of example only and with reference to the accompanying drawings in which:

(2) FIG. 1 is a perspective view of a rotor body; and

(3) FIG. 2 is a perspective view of the top plate of the present invention;

(4) FIG. 3 is a side view of a crusher including the rotor body of the present invention; and

(5) FIG. 4 is a side view of a mobile mineral material processing plant.

BEST MODES FOR CARRYING OUT THE INVENTION

(6) The rotor body (generally indicated by arrow 1) of the present invention is depicted in FIG. 1.

(7) In use, the rotor body (1) would be dressed with various wear parts (not shown), but here it is an undressed state.

(8) The rotor body (1) includes a top (2) plate and base (3) plate. These sandwich vertically standing walls (4), which define the outlet ports (5) and would bear wear parts (not shown) when the rotor is dressed.

(9) At the centre of the top (2) and base (3) plates are circular apertures (6, 7). The aperture (6) in the top plate (2) defines the inlet port, by which rock material (not shown) enters the rotor body (1) in use. In use, the aperture (7) in the base plate (3) supports a hub or boss to facilitate installation onto the crusher shaft (not shown)

(10) It will be appreciated that arranged equidistance around the perimeter of both the top (2) and base (3) plates of the rotor body (1) are a plurality of recesses (8).

(11) These recesses (8) engage with the top wear plate (9) of the present invention, which is illustrated in FIG. 2.

(12) The top wear plate (9) includes an inlet port (10), which in some embodiments may include a rim (not shown) about the perimeter of its underside (11). The rim (not shown) would engage with the inlet port of the rotor body (not shown), and provide some protection for the top plate (not shown) of the rotor body.

(13) The top wear plate (9) is provided with a rim (12) descending from its outer perimeter.

(14) Arranged equidistance around the perimeter of the rim (12) is a series of protrusions (13) extending towards the inlet port (10). The sides (14) of these protrusions (13) are angled such that the sides (14) of the protrusions (13) at not substantially at right angles to the rim (12)

(15) In use, these protrusions (13) engage with the recesses (not shown) of the rotor body (not shown), effectively locking it relative to the rotor body. The protrusions also act to disrupt or otherwise minimise airflow between the perimeter of the rotor body (not shown) and the top wear plate (9).

(16) The protrusions of the top wear plate may include additional recesses (15) to help key in with complementary protrusions on the rotor body (not shown) or to provide locations for additional wear parts to be fitted to the rotor.

(17) Turning now to FIG. 3, this depicts a crusher (16) which includes the rotor body (1) housed within a frame (17). The crusher (16) is driven by a motor (18) mounted to a frame (19). Both the motor (18) and the rotor shaft (20) are provided with pulleys (21).

(18) Rock material (not shown) enters the crusher (16) via a feeder hopper (22) mounted to the roof (23) of the crusher (16).

(19) FIG. 4 shows the crusher (16) as part of a mobile mineral material processing plant (24).

(20) The plant (24) includes a feeding device (25) to conduct rock material (not shown) to the feeder hopper (22) of the crusher (16). As the rock material is processed, it exits the plant (24) via a discharge conveyor (26).

(21) The plant (24), mounted to a tracked propelling means (27), is operable via a control unit (28) which controls the crusher (16) and its ancillary equipment such as the feeding device (25). It should be appreciated that instead of, or in addition to, tracks the plant (24) may include wheels, runners or legs.

(22) Aspects of the present invention have been described by way of example only and it should be appreciated that modifications and additions may be made thereto without departing from the scope thereof.