JPH04262817A - Conveyor roll replacement device - Google Patents

Abstract

PURPOSE:To provide a replacement device capable of perfectly securely, efficiently replacing a conveyor roll in a limited space such as a refining line for thin steel sheet. CONSTITUTION:The guide rail 2 is moved from the bottom of an upper structure 41, etc., by grasping the neck part of a roll 7 by a clamp 1 and sliding a guide rail 2 through a traverser 11. It becomes possible to replace the conveyor roll safely and quickly.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention is based on the invention in which an obstacle is placed on the upper part of a roll or the like placed at the bottom of a vertically branched belt conveyor used for sorting out defective products on the process line of the thin steel plate refining process in a steelworks. This relates to a device for changing rolls that is difficult to lift with a crane or the like.

0002

[Prior Art] Rolls, etc., placed at the bottom of a vertically branched belt conveyor used for sorting out defective products on process lines in steel plants, etc., have obstacles at the top, making it difficult to replace the rolls. In this case, there have been various difficulties with conventional techniques. Here, the state of the replacement work when replacing the rolls of a belt conveyor installed in a thin steel plate refining process line according to the prior art will be explained with reference to FIG.

In the figure, 47, 48 and 49 are chain blocks. In this case, three chain blocks are used to lift the rolls of the belt conveyor. 7 is a roll of a belt conveyor. 6 is a belt. The belt 6 of the lower belt conveyor is shown already removed in FIG. Reference numeral 41 shows the upper belt conveyor as seen from the direction of travel. 42 is a walking platform provided on the machine side of the thin steel plate finishing process line, and this walking platform is seen from the direction of movement. 43 is a handrail of the walking platform. 44 is a support of the walking platform.

Reference numeral 45 denotes a cross section of a C-shaped steel constituting a pedestal for supporting the upper belt conveyor 41. One of the chain blocks 47 on the walking platform 42 side is suspended using the handrail 43 of the walking platform. The central chain block 48 constitutes a frame supporting the upper belt conveyor 41.
It is suspended using shaped steel 45. Chain block 49 on the opposite side of the walking platform 42
is suspended by using the other side of the C-shaped steel 45 that constitutes the frame that supports the upper belt conveyor 41.

To extract the roll 7 of the belt conveyor, the chain block 49 is slightly loosened, and the chain block 47 is slightly tightened to move the belt conveyor roll 7 slightly toward the walking platform 42. By repeating this operation many times, the roll 7 of the belt conveyor is moved laterally from below the upper belt conveyor 41, and then the roll 7 of the belt conveyor is lifted up using a crane and removed. The work of assembling the belt conveyor roll 7 of the lower belt conveyor provided at the lower position of the upper belt conveyor 41 is performed by performing the reverse work of the above-mentioned work. This work required a lot of man-hours and was extremely dangerous.

[0006]

[Problems to be Solved by the Invention] The present invention has been made in view of the above circumstances, and is intended for belt conveyor rolls where cranes cannot be used and the space available for replacement work is extremely limited. To provide a device that can avoid danger and efficiently perform work when replacing.

[0007]

[Means for Solving the Problems] A conveyor roll changing device according to the present invention includes a traverser that has a clamp that grips the roll neck portion of a conveyor roll and is movable along a guide rail, and a traverser that is movable. It is characterized by comprising a guide rail that supports the guide rail, and a truck having a support portion that movably supports the guide rail.

[0008]

[Operation] The conveyor roll changing device according to the present invention can be used when the space available for changing work is extremely limited, such as when changing the rolls of a belt conveyor installed in a thin steel plate finishing process line, etc. Moreover, even in roll replacement work at a location where a crane cannot be used for roll replacement work, the rolls, which are heavy objects, are not suspended in the air, so work safety and work efficiency can be ensured.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A conveyor roll changing device according to one embodiment of the present invention will be described in detail with reference to the attached FIGS. 1, 2, 3, and 4. FIG. 4 is a vertical side view of a process line used for selecting defective products in a thin steel plate refining process, in which the conveyor roll changing device according to the present invention is used. In the figure, 52 is an inspection table conveyor. An inspector 58 cuts a cold-rolled steel plate 55.
Good products 56 are inspected on the inspection table conveyor 52 by
are sent by the upper belt conveyor 41 and sent to product packaging. 6 is a conveyor belt. 53 is a flapper gate. 54 is a support plate.

If the product is defective, the flapper gate 53 will flip up and the scrap steel plate 57 will be transferred to the scrap conveyor 5.
Drop it on top of 9. The scrap steel plate 57 is conveyed by a scrap conveyor 59 to a scrap piler 51.
can be piled up. When replacing the conveyor roll 7 of the scrap conveyor 59, it is impossible to lift it with a crane because the upper belt conveyor 41 is installed directly above it.

FIGS. 1 and 2 show the process line viewed from the AA cross section in FIG. 4. FIG. 1 is an elevational view of a conveyor roll changing device according to the present invention. In the figure, reference numeral 1 denotes a clamp, which grips the neck portion of the roll 7 of the conveyor roll. 2 is a guide rail;
The traverser 11 grips the conveyor roll 7 and slides around the guide rail 2 to move the conveyor roll 7 to the side of the lower part of the upper belt conveyor 41, and then uses a crane to move the roll 7 of the belt conveyor. lift and remove. 6 is a belt of a belt conveyor. FIG. 1 shows the situation in which the belt 6 of the lower belt conveyor has already been removed. At this time, both ends of the guide rail 2 are suspended by a chain block 4 and a chain block 5.

[0012] Reference numeral 3 denotes a suspension cart, which is loaded with a guide rail 2, a clamp 1, and a traverser 11, and is carried from a storage location to a position where the work will be performed before carrying out the conveyor roll replacement work. When the conveyor roll replacement work is completed, the conveyor rolls are stored in the storage area.

FIG. 2 is an elevational view of a conveyor roll changing device according to another embodiment of the present invention. Although the orientation is reversed from that in FIG. 1, the setup for conveyor roll replacement work is the same as in FIG. 1.

FIG. 3 is a plan view showing the engagement relationship between the vertical support portion of the suspension truck 3 and the guide rail 2 of the conveyor roll changing device according to the present invention shown in FIG. In the figure, 31, 32, 33, and 34 are cam followers that guide the guide rail 2 when it moves up and down.

[0015] In the past, this work required a lot of man-hours and was extremely dangerous.
Now I can work more efficiently and safely.

[0016]

[Effects of the Invention] As is clear from the above, according to the conveyor roll replacement device of the present invention, conveyor roll replacement can be carried out safely and reliably, and the work can be carried out efficiently with an extremely small number of man-hours. . Furthermore, since the conveyor roll replacement device according to the present invention is stored in the storage space except when carrying out conveyor roll replacement work, it does not interfere with main work such as thin steel sheet refining.

[Brief explanation of the drawing]

FIG. 1 is an elevational view of a conveyor roll changing device according to the present invention.

FIG. 2 is an elevational view of a conveyor roll changing device according to another embodiment of the present invention.

FIG. 3 is a plan view showing the relationship between the hanging truck and the guide rail of the conveyor roll changing device according to the present invention.

FIG. 4 is a longitudinal side view of a process line in which the conveyor roll changing device according to the present invention is used.

FIG. 5 is an explanatory diagram showing the state of work for exchanging the rolls of a belt conveyor in the prior art.

[Explanation of symbols]

1 Clamp 2 Guide rail 3 Hanging truck 4 Chain block 5 Chain block 6 Belt conveyor belt 7 Belt conveyor roll 11 Traverser 31 Cam follower 32 Cam follower 33 Cam follower 34 Cam follower 41 Upper belt conveyor 42 Walking platform 43 Handrail 44 Walking platform pillar 45
C-shaped steel of the frame 47 Chain block 48 Chain block 49 Chain block 51 Scrap piler 52 Inspection table conveyor 53 Flapper gate 54 Support plate 55 Cold-rolled steel plate cutting plate 56 Good product 57 Scrap steel plate 58 Inspector 59 Scrap conveyor

Claims (1)

[Claims] 1. A traverser having a clamp for gripping a roll neck portion of a conveyor roll and movable along a guide rail; a guide rail movably supporting the traverser; and a traverser movably supporting the guide rail. A conveyor roll changing device comprising: a cart having a support section;