Crusher

Patent metadata

Field	Value
Publication number	US-11944981-B2
Application number	US-202117150688-A
Country	US
Kind code	B2
Filing date	Jan 15, 2021
Priority date	Jan 27, 2020
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

The invention relates to a crusher ( 10 ), in particular a rock crusher, having a crusher unit ( 40 ), to which a band conveyor unit ( 60 ) having an endlessly circulating band conveyor is indirectly or directly assigned, wherein a magnetic separator ( 70 ) having a magnet ( 79 ) is held in the area of the band conveyor unit ( 60 ) above the band conveyor in the direction opposite from the direction of gravity,
and wherein an adjustment unit ( 80 ) is provided, which can be used to change the height of the magnet ( 79 ) above the band conveyor. To enable the reliable operation of such a crusher, it is provided according to the invention that the magnetic separator ( 70 ) is suspended from at least two limp ties ( 81, 82, 84, 85 ), and that the limp ties ( 81, 82, 84, 85 ) can be adjusted by means of at least one actuator unit ( 90 ) to change the height of the magnet ( 79 ).

First claim

The invention claimed is:

1. A rock crusher, comprising:
a crusher unit;
a band conveyor unit arranged to convey crushed rock directly or indirectly from the crusher unit, the band conveyor unit including an endlessly circulating band conveyor;
a magnetic separator held above the band conveyor in a direction opposite from a direction of gravity, the magnetic separator including a magnet and first and second spaced suspension connectors; and
an adjustment unit including:
at least two flexible ties suspending the magnetic separator above the band conveyor, the at least two flexible ties including first and second flexible ties; and
at least one actuator configured to adjust the flexible ties to change a height of the magnetic separator above the band conveyor;

wherein the at least two flexible ties are coupled together for synchronized motion when the at least two flexible ties are adjusted by the at least one actuator; and
wherein the adjustment unit includes at least two rotatably mounted deflectors about which the at least two flexible ties are routed to synchronize the motion of the two flexible ties when the at least two flexible ties are adjusted by the at least one actuator, the at least two rotatably mounted deflectors including first and second rotatably mounted deflectors coupled to each other for synchronized rotation;
wherein the first flexible tie includes a first tension strand connected to the first suspension connector using a first coupling element, the first flexible tie being routed around the first deflector, and the first tension strand merging into a first retaining segment of the first flexible tie beyond the first deflector;
wherein the second flexible tie includes a second tension strand connected to the second suspension connector using a second coupling element, the second flexible tie being routed around the second deflector, and the second tension strand merging into a second retaining segment of the second flexible tie beyond the second deflector; and
wherein at least one of the first and second retaining segments is connected to the at least one actuator.

2. The rock crusher of claim 1 , wherein:
the adjustment unit includes a shaft, and the first and second rotatable deflectors are attached to the shaft for synchronized rotation with the shaft.

3. The rock crusher of claim 1 , wherein:
the at least two suspension connectors are spaced from each other transversely to a conveying direction of the band conveyor.

4. The rock crusher of claim 3 , wherein:
the magnetic separator includes at least two suspension connectors spaced from each other in the conveying direction of the band conveyor, each of the suspension connectors being connected to one of the flexible ties.

5. The rock crusher of claim 1 , wherein:
the at least two suspension connectors are spaced from each other in a conveying direction of the band conveyor.

6. The rock crusher of claim 1 , wherein:
at least two of the at least two flexible ties are connected by a common connector to the at least one actuator.

7. The rock crusher of claim 1 , wherein:
the at least one actuator is a hydraulic rotary actuator.

8. The rock crusher of claim 1 , wherein:
the at least one actuator is an electric rotary drive actuator or an electric linear drive actuator.

9. The rock crusher of claim 1 , wherein:
the at least two flexible ties are formed by roller chains or round link chains; and
the at least two rotatably mounted deflectors are sprockets.

10. The rock crusher of claim 1 , wherein the magnetic separator comprises:
two supports arranged at a distance from each other in a conveying direction of the band conveyor;
at least two rollers mounted on the supports;
an endlessly circulating belt conveyor mounted on the rollers such that a transport direction of the belt conveyor extends transversely to the conveying direction of the band conveyor, the belt conveyor forming two strands; and
wherein the magnet is arranged between the two strands of the belt conveyor.

11. The rock crusher of claim 1 , wherein:
the adjustment unit includes at least one shaft or roller on which the at least two flexible ties can be wound.

12. The rock crusher of claim 11 , wherein:
the at least one shaft or roller includes two shafts or rollers on each of which one of the flexible ties can be wound.

13. A rock crusher, comprising:
a crusher unit;
a band conveyor unit arranged to convey crushed rock directly or indirectly from the crusher unit, the band conveyor unit including an endlessly circulating band conveyor;
a magnetic separator held above the band conveyor in a direction opposite from a direction of gravity, the magnetic separator including a magnet; and
an adjustment unit including:
at least two flexible ties suspending the magnetic separator above the band conveyor; and
at least one actuator configured to adjust the flexible ties to change a height of the magnetic separator above the band conveyor;

wherein the at least two flexible ties are coupled together for synchronized motion when the at least two flexible ties are adjusted by the at least one actuator;
wherein the adjustment unit includes at least two rotatably mounted deflectors about which the at least two flexible ties are routed to synchronize the motion of the two flexible ties when the at least two flexible ties are adjusted by the at least one actuator; and
wherein the adjustment unit includes a strand segment of one of the flexible ties, the strand segment running between the first and second rotatable deflectors to synchronize the rotation of the rotatable deflectors.

14. A rock crusher, comprising:
a crusher unit;
a band conveyor unit arranged to convey crushed rock directly or indirectly from the crusher unit, the band conveyor unit including an endlessly circulating band conveyor;
a magnetic separator held above the band conveyor in a direction opposite from a direction of gravity, the magnetic separator including a magnet; and
an adjustment unit including:
at least two flexible ties suspending the magnetic separator above the band conveyor; and
at least one actuator configured to adjust the flexible ties to change a height of the magnetic separator above the band conveyor;

wherein the at least one actuator is a linear hydraulic actuator including a cylinder, a piston guided in the cylinder, and a piston rod connected to the piston; and
wherein the piston rod or the cylinder is connected to the at least two flexible ties so that the at least two flexible ties move linearly with the piston rod or the cylinder.

15. A rock crusher, comprising:
a crusher unit;
a band conveyor unit arranged to convey crushed rock directly or indirectly from the crusher unit, the band conveyor unit including an endlessly circulating band conveyor;
a magnetic separator held above the band conveyor in a direction opposite from a direction of gravity, the magnetic separator including a magnet; and
an adjustment unit including:
at least four flexible ties suspending the magnetic separator above the band conveyor; and
at least two actuators configured to adjust the flexible ties to change a height of the magnetic separator above the band conveyor, each

actuator being coupled to a different pair of the flexible ties;
wherein the at least four flexible ties are coupled together for synchronized motion when the at least four flexible ties are adjusted by the at least two actuators.

16. The rock crusher of claim 15 , wherein:
the two actuators are synchronized with each other.

17. A rock crus

Assignees

• Kleemann Gmbh

Inventors

• Köpf Reiner
• Häberle Steffen

Classifications

• B03C1/22 Primary

  with non-movable magnets · CPC title

• B02C21/026

  self-propelled · CPC title

• B02C23/10

  with separator arranged in discharge path of crushing or disintegrating zone · CPC title

• B03C2201/20

  Magnetic separation of bulk or dry particles in mixtures · CPC title

• B02C23/08 Primary

  Separating or sorting of material, associated with crushing or disintegrating (B02C23/18 takes precedence {; beater mills combined with sifting devices B02C13/13, B02C13/14; for tumbling mills B02C17/1835}) · CPC title