JP5659986B2 - Roll section trolley for loop section - Google Patents

Description

  The present invention relates to a roll replacement carriage used when replacing a support roll arranged in a loop section of a steel strip continuous pickling facility or the like.

  The steel strip continuous pickling equipment accepts hot-rolled coiled steel strip, rewinds it with a payoff reel, welds its tip to the tail end of the preceding steel strip with a welding machine and continuously supplies it And the central equipment for collecting the steel strip to be supplied to the pickling tank in a loop shape that reciprocates in the horizontal direction in the loop section of the hierarchical structure, and then supplying to the pickling tank and pickling, and the pickled steel It consists of a delivery facility that trims the width end of the belt with a side trimmer and winds it with a tension reel (see, for example, Patent Document 1).

  At that time, as shown in FIG. 3 and FIG. 4, in the loop section 3, while the steel strip 1 is welded by the welding machine 2, the loop car 11 moves back and forth on the rail 12, thereby The steel strip 1 supplied to the pickling tank 4 is not stopped by paying out 1 from the loop section 3 or collecting it in the loop section 3.

  In the loop section 3, a swing roll 16 that supports the upper plate 1 a of the loop-shaped steel strip 1 as a support roll 15 for supporting the steel strip 1 that is reciprocated in the horizontal direction to form a loop shape, Many support rolls 17 that support the lower plate 1b are disposed (for example, 100 each).

JP 2005-334949 A

  When replacing the support roll 15 (swing roll 16, support roll 17) in the loop section 3 as described above, since the loop section 3 has a multi-level hierarchical structure, an overhead crane cannot be used. Since there are a large number of them, there is no appropriate lifting device, and the support roll 15 must be removed and pulled out by manual suspension of the manpower and the chain block. there were.

  That is, when the support roll 15 is replaced, there is a risk that the worker may fall down when installing the chain block used for removing and pulling out the support roll 15 at a high place. In addition, when the support roll 15 is lifted, the worker carries out the chain block change, so that the suspended load (support roll 15) is shaken and there is a danger of pinching pressure.

  The present invention has been made in view of the above circumstances, and when replacing a support roll disposed in a loop section of a steel strip continuous pickling facility, the support roll is replaced safely and with good workability. An object of the present invention is to provide a roll exchanging cart that can be used.

  In order to solve the above problems, the present invention has the following features.

  [1] A portable assembly-type roll replacement cart used when replacing a support roll arranged in a loop section of a steel strip, and a pair of left and right side frames traveling on a rail on which the loop car of the loop section travels A portal frame that is erected on the pair of left and right side frames; a suspension beam that is supported by the upper frame of the portal frame and that is slidable in a horizontal direction perpendicular to the rail extending direction; A chain block installed on the suspension beam, the installation position of which is slidable in a horizontal direction perpendicular to the rail extending direction, a roll receiving arm installed on the side frame and capable of mounting a support roll; Side frame locking mechanism for fixing the side frame to the rail, and a suspension beam for locking the slide position of the suspension beam Ride locking mechanism and the roll replacement carriage loop sections, characterized in that it comprises a chain block slide lock mechanism for locking the slide position of the chain block.

  In the present invention, when replacing the support roll disposed in the loop section of a steel strip continuous pickling facility or the like, the support roll can be replaced safely and with good workability. That is, in the replacement work of the support rolls, it is possible to prevent falling and pinching, and to shorten the replacement time and the number of workers.

It is a perspective view which shows the roll exchange trolley | bogie which concerns on one Embodiment of this invention. It is a perspective view which shows the working state of the roll replacement trolley | bogie which concerns on one Embodiment of this invention. It is a figure which shows the loop section in the continuous pickling equipment of a steel strip. It is a figure which shows the detail of the loop section in the continuous pickling equipment of a steel strip.

  An embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a roll replacement carriage 20 according to an embodiment of the present invention. Here, the case where the support roll 17 arranged in the loop section 3 of the steel strip continuous pickling equipment shown in FIGS. 3 and 4 is replaced will be described as an example.

  As shown in FIG. 1, the roll change cart 20 according to this embodiment includes a pair of left and right side frames 21 that run on wheels 22 on a rail 12 on which the loop car 11 of the loop section 3 runs, and a pair of left and right sides thereof. Suspension supported by a portal frame 23 standing on the frame 21 and an upper frame 24 of the portal frame 23 and slidable in a horizontal direction (left-right direction) perpendicular to the extending direction of the rail 12. The beam 25, the chain block 31 installed on the suspension beam 25, the installation position of which is slidable in the horizontal direction (left-right direction) perpendicular to the extending direction of the rail 12, and the side frame 21 are installed. When the roll receiving arm 33 on which the support roll 17 can be mounted and the roll replacement carriage 20 are stopped, the side frame 21 is fixed to the rail 12. A side frame locking mechanism 35 to be provided with a hanger beam slide lock mechanism 36 locks the sliding position of the hanging beam 25, and a chain block slide lock mechanism 37 for locking the slide position of the chain block 31. Note that reference numeral 26 in FIG. 1 denotes a brace material for the portal frame 23.

  The roll replacement cart 20 is a portable assembly type in which the frame and each component that can be transported are assembled by inserting and fitting, and each component is carried into the loop section 3 to be used on the spot. It can be assembled in a short time without using.

  FIG. 2 is a perspective view showing a state in which the support roll 17 is replaced (removed) using the roll replacement carriage 20.

  As shown in FIG. 2, the roll replacement carriage 20 is stopped at a predetermined work position, the side frame 21 is fixed to the rail 12 by the side frame lock mechanism 35, and then the existing support roll 17 is lifted by the chain block 31. The lifted support roll 17 is pulled out by a two-stage slide mechanism by sliding the suspension beam 25 and the chain block 31. At this time, the slide position of the suspension beam 25 is fixed by the suspension beam slide lock mechanism 36, and the slide position of the chain block 31 is fixed by the chain block slide lock mechanism 37.

  Accordingly, it is possible to perform the replacement work (removal work) of the support roll 17 in a stable state.

  In addition, about the new support roll 17 installed in the place where the existing support roll 17 removed above was used, previously using the two-stage slide mechanism by the slide of the suspension beam 25 and the slide of the chain block 31, After mounting on the roll receiving arm 33 and removing the existing support roll 17, the chain block 31 is used to move from the roll receiving arm 33 to the place where the existing support roll 17 was present.

  As a result, it is not necessary to obtain a new support roll 17 each time, and the working time can be shortened.

  Thus, in this embodiment, when replacing the support roll 17 arranged in the loop section 3, the support roll 17 can be replaced safely and with good workability. In other words, in the replacement work of the support roll 17, it is possible to prevent falling and pinching, and to shorten the replacement time and reduce the number of workers.

  In this embodiment, the case where the support roll 17 installed in the loop section 3 of the continuous pickling equipment for steel strip is replaced is described as an example, but the same applies when the swing roll 16 is also replaced. be able to. It can also be applied in the loop section of other equipment.

DESCRIPTION OF SYMBOLS 1 Steel strip 1a Upper plate 1b Lower plate 2 Welding machine 3 Loop section 4 Pickling tank 11 Loop car 12 Rail 15 Support roll 16 Swing roll 17 Support roll 20 Roll replacement cart 21 Side frame 22 Wheel 23 Gate type frame 24 Upper frame 25 Hanging beam 26 Brace material 31 Chain block 33 Roll receiving arm 35 Side frame locking mechanism 36 Hanging beam slide locking mechanism 37 Chain block slide locking mechanism

Claims (1)

  A roll assembly cart of a portable assembly type used for replacing a support roll arranged in a loop section of a steel strip, a pair of left and right side frames that run on a rail on which a loop car of the loop section runs, A portal frame standing on a pair of left and right side frames, a suspension beam supported by the upper frame of the portal frame and slidable in a horizontal direction perpendicular to the rail extending direction, and the suspension beam A chain block whose installation position is slidable in a horizontal direction orthogonal to the rail extending direction, a roll receiving arm which is installed on the side frame and can mount a support roll, and the side frame A side frame lock mechanism for fixing the suspension beam to the rail, and a suspension beam slide for locking the sliding position of the suspension beam. Locking mechanism and the roll replacement carriage loop sections, characterized in that it comprises a chain block slide lock mechanism for locking the slide position of the chain block.

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