Carrying device and method for frontal removal of a roll body from a roll frame, and roll frame having a roll body which can be removed frontally

Patent metadata

Field	Value
Publication number	US-11834310-B2
Application number	US-201716072670-A
Country	US
Kind code	B2
Filing date	Jan 27, 2017
Priority date	Jan 27, 2016
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A carrying device (1) for the frontal removal of a roll body from a roll frame, comprising a main frame (2) and a receiving section (3) for the roll body. The receiving section (3) can be transferred from an introduction position (E) into a supporting position (S). The receiving section (3) has a profile which at least partially encloses the roll body in the supporting position (S), and the carrying device (1) can be pushed in below the roll body with the receiving section (3) in the introduction position (E), and the roll body is carried with the receiving section (3) in the supporting position (S).

First claim

The invention claimed is:

1. A roller body carrying device that is configured for use in frontal removal of a roller body from a roller mill, the roller body carrying device comprising:
a main frame comprising first and second spaced apart legs which each have a substantially L-shaped form, and
a receiving section configured to receive the roller body, the receiving section is configured to be movable, relative to both the main frame and the roller body, between an introduction position and a supporting position, a first end of the receiving section being pivot-mounted, about a horizontal axis, to a first end region of the first and second spaced apart legs while an opposed second end of the receiving section being movable, relative to both the first and the second spaced apart legs, by actuating means for actuating the carrying device to facilitate moving the second end of the receiving section between the introduction position and the supporting position, and vice versa,
the receiving section has a profile which, in the supporting position, at least partly encloses the roller body,
with the receiving section moved into its introduction position by the actuating means for actuating the carrying device, the roller body carrying device is thereby configured to be capable of being inserted underneath the roller body and braced against a frame of the roller mill by guiding means which are removably arranged on the roller mill within a product space of the roller mill, which product space extends between a product pull-in area and a product exit area, and
with the roller body carrying device positioned underneath the roller body and braced against the frame of the roller mill by the guiding means which are arranged on the roller mill within the product space of the roller mill and with the receiving section moved into its supporting position by the actuating means for actuating the roller body carrying device, the roller body is supported by the roller body carrying device.

2. The roller body carrying device according to claim 1 , wherein one leg has additional guiding means.

3. The roller body carrying device according to claim 1 wherein the actuating means comprises a threaded rod.

4. The roller body carrying device according to claim 3 , wherein the threaded rod is mounted in a threaded bushing, and the threaded bushing is mounted in a same leg of a substantially L-shaped main frame with two legs standing at an angle to each other as the receiving section.

5. The roller body carrying device according to claim 4 , wherein the threaded rod is connected at one end to an expanding joint in a way that is rotatable, yet firm against pushing and pulling, the expanding joint is expandable by rotating of the threaded rod, and the receiving section can be moved from the introduction position into the supporting position.

6. The roller body carrying device according to claim 5 , wherein the receiving section can be moved from the introduction position into the supporting position by increasing a distance between the threaded bushing and the end of the threaded rod which is connected to the expanding joint.

7. The roller body carrying device according to claim 3 , wherein the threaded rod is provided with means for accommodating a drive unit that communicates with and rotationally drives the threaded rod.

8. The roller body carrying device according to claim 1 , wherein means for limiting the movement of the receiving section are provided.

9. A roller mill with a plurality of rolls,
wherein at least one roller comprises a roller body with two roll stubs, the roller body is releasable from the roller mill by moving the two roll stubs away from each other,
wherein the guiding means for a roller body carrying device in accordance with claim 1 are removably arranged beneath the at least one roller within the product space of the roller mill such that the roller body carrying device can be braced against the frame of the roller mill by the guiding means such that the roller body can be removed frontally, and
wherein the roller body carrying device is movable in a direction perpendicular to the roller axis.

10. The roller mill according to claim 9 , wherein the guiding means enables a guiding of the roller body carrying device perpendicular to a plumb-line.

11. The roller mill according to claim 9 , wherein the guiding means comprise at least one guide rail.

12. A method for a frontal removal of a roller body from a roller mill with a plurality of rollers, wherein at least one roller comprises a roller body with two roll stubs and the roller body is releasable by moving the two roll stubs away from each other, the method comprising:
introducing at least one roller body carrying device in accordance with claim 1 ;
lifting of the receiving section of the at least one roller body carrying device such that the roller body is in an operative connection with the roller body carrying device;
releasing of the roller body by moving the two roll stubs away from each other, so that the roller body is resting on the at least one roller body carrying device; and
moving the at least one roller body carrying device perpendicularly to the roll axis.

13. The roller body carrying device according to claim 1 , wherein joint segments couple the main frame, the receiving section and the actuating means to one another to facilitate moving the second end of the receiving section between the introduction position and the supporting position, and vice versa.

14. The roller body carrying device according to claim 13 , wherein the joint segments and the actuating means are located between the main frame and the receiving section.

15. The roller body carrying device according to claim 13 , wherein a first joint segment is connected to the actuating means, a second joint segment is connected to the main frame and a third joint segment is connected to the receiving section.

16. The roller body carrying device according to claim 1 , wherein the actuating means is located vertically underneath the receiving section.

17. A roller body carrying device that is configured for use in frontal removal of a roller body from a roller mill, the roller body carrying device comprising:
a main frame comprising first and second spaced apart legs which each have a substantially L-shaped form, and
a receiving section configured to receive the roller body, the receiving section is configured to be vertically movable, relative to both the main frame and the roller body, between an introduction position and a supporting position, a first end of the receiving section being pivot-mounted, about a horizontal axis, to a first end region of the first and second spaced apart legs while an opposed second end of the receiving section being movable, relative to both the first and the second spaced apart legs, by actuating means for actuating the carrying device to facilitate moving the second end of the receiving section between the introduction position and the supporting position, and vice versa,
the roller body carrying device being laterally movable toward and away from a pair of rolling stubs which support the roller body, and the roller body carrying device, when in its supporting position supporting the roller body, facilitates laterally moving the roller body to a service position away from the pair of rolling stubs,
the receiving section has a profile which, in the supporting position, at least partly encloses the roller body,
with the receiving section moved into its introduction position by the actuating means for actuating the carryin

Assignees

• Buehler Ag

Inventors

• Reis Pascal
• Buerke Hermann
• Schneider Oliver
• Brändli Cyril
• Wels Sebastian

Classifications

• B66F5/025 Primary

  screw-actuated · CPC title

• B02C4/02 Primary

  with two or more rollers · CPC title

• B02C4/28

  Details · CPC title

• B02C4/30

  Shape or construction of rollers · CPC title