KR960009771Y1 - Device of disjointing and constructing roll - Google Patents

Abstract

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Description

Roll automatic disassembly and assembly device

1 is an overall configuration diagram showing a roll automatic assembly assembly of the present invention.

Figure 2 is an exploded perspective view of the roll fixing body portion provided in the roll automatic disassembly assembly apparatus of the present invention.

Figure 3 is a partially cutaway perspective view of the intermediate shaft moving body portion provided in the automatic roll disassembly assembly apparatus of the present invention.

4 is a cross-sectional view taken along the line AA ′ of FIG. 3.

5 is a block diagram of the lifting control unit provided in the automatic roll disassembly assembly device of the present invention.

6 is an operational state diagram of the present invention,

(a) is a working state diagram before roll disassembly.

(b) is a working state diagram after roll disassembly.

7 is a configuration diagram of the roll to which the present invention is applied.

* Explanation of symbols for main parts of the drawings

10: roll fixing body 17a, 17b: hydraulic cylinder

19a, 19b: operating rod 20: intermediate shaft moving body

25: intermediate shaft holder 30: lifting control unit

39a, 39b: Bevel Gear 40: Bed

50: hydraulic system 100: roll

110: body portion 125: intermediate shaft

129: flange

The present invention relates to a device capable of automatically disassembling and assembling the intermediate shafts of various rolls. More specifically, by using a hydraulic power, a single worker can move the intermediate shaft from a roll in a short time without damage to components. The present invention relates to a roll automatic disassembling and assembling apparatus, which can greatly improve work productivity by disassembling the shaft and can prevent a safety accident of an operator.

In general, various rolls 100 used for rolling and conveying steel products in steel mills are provided with a body part 110 having a circular rod shape as shown in FIG. 7, and bearings 120 are provided at both sides thereof. On both side ends, the intermediate shaft 125 is coupled to each other by press-fitting as a medium for transmitting the rotational force generated in the reducer (not shown) to the body 110.

As described above, various rolls 100 have a sticking phenomenon between the hexagonal fitting rods 127 and the inner diameter of the intermediate shaft 125 that form both end portions of the body portion 110 as time passes. It is very difficult to disassemble and assemble for machining the outer surface of the body portion 110). Therefore, when the worker maintains the roll 100, the body 110 is placed on a crane (not shown) to raise to a certain height, and then a flange portion 129 of the intermediate shaft 125 as a heavy hammer (not shown). The impact was to separate the body 110 and the intermediate shaft 125 by the impact. In this process, the safety accident of the operator was caused when the intermediate shaft 125 fell, and in order to disassemble one set of rolls 100, it took an average of four hours of work time, which reduced work efficiency and hit. It caused a number of problems, such as causing early breakage of parts. In addition, contrary to the above, the process of fitting the intermediate shaft 125 to the body portion 110 was also a very difficult maintenance work.

The purpose of this paper is to solve the above-mentioned conventional problems, and it is possible to perform the assembly and assembly of the rolls in a short time by only one worker without using a crane and a hammer, so that the work productivity is greatly improved and the worker's safety accident It is also prevented, and the object of the present invention is to provide an improved roll disassembly and assembly device that can be improved to minimize the damage of parts to extend the life of the roll.

In order to achieve the above object, the present invention is provided with a circular rod-shaped body portion, the both ends of the device for disassembling and assembling a roll formed with an intermediate shaft, respectively, is fixed on a bed of a certain size, the body of the roll A roll fixing body part having semicircular recesses formed on both sides of the upper part of which the upper part is fitted; Installed on the pair of rails adjacent to the side of the roll fixing body so as to be moved forward and backward by a hydraulic cylinder supplied with hydraulic pressure by a pulley and a hydraulic system so that the flange portion of one of the middle shafts of the roll is fitted from the upper side. An intermediate shaft moving body portion having a concave groove formed in a semicircular shape; And a male screw part installed between the roll fixing body part and the intermediate shaft moving body part, vertically installed vertically and rotatable by a rotating handle and a bevel gear, and screwed to a male screw part of the rotating bar. And a support plate which slides up and down during rotation of the rotating rod includes an elevating adjustment part that forms an arc-shaped recess in which an intermediate axis is fitted, and disassembles and assembles the roll body and the intermediate axis, respectively. The roll automatic disassembly and assembly apparatus is provided.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Figure 1 shows the roll automatic disassembly and assembly apparatus according to the present invention as a whole. The roll automatic disassembling and assembling apparatus 1 includes a roll fixing body 10 in which the body 110 of the roll 100 to be disassembled is disposed, and is adjacent to one side of the roll fixing body 10. The intermediate shaft moving body portion 20 is mounted, and the lifting adjustment portion 30 is provided between the roll fixing body portion 10 and the intermediate shaft moving body portion 20, the roll fixing body portion 10 And the intermediate shaft moving body portion 20 are mounted side by side on the bed 40.

The roll fixing body 10 has an upper open roll fixing box 12 forming a roll 100 settling space therein, as shown in more detail in FIG. A plurality of partitions 13a, 13b and 13c vertically formed so as to separate the inside horizontally are formed with square cutting spaces S having an open upper portion, respectively, so that the partitions 13a, 13b and 13c respectively.凹 -shaped guide grooves 14a and 14b are formed at left and right vertical edges forming a space S, respectively, so that the roll fixing jig 15 may be fitted from the top.

The roll fixing jig 15 has a semicircular recess 15a formed at an upper edge thereof, and the body 110 of the roll 100 between the bearing blocks 120 is formed above the recess 15a. Can be tongued in In addition, the hydraulic cylinders 17a and 17b are integrally mounted to both side plates 12a and 12b of the roll fixing box 12 through pedestals 18a and 18b and bolts (not shown), respectively. The hydraulic cylinders 17a and 17b extend through the through holes H of the front bulkhead 13a to the intermediate shaft moving body portion 20, respectively. A hydraulic system 50 for providing hydraulic pressure to each of 17a) and 17b is mounted to the outer side of the roll fixing box 12 via a pedestal 52. The hydraulic system 50 is equipped with a power supply box 54, a hydraulic pump 55, a directional valve 56, and the like on the oil tank 53.

In addition, the intermediate shaft moving body portion 20 is a pair fixed to the upper surface of the bed 40 on the side of the roll fixing body portion 10 as shown in more detail in Figures 3 and 4 The pulley 23 of the support plate 22 is mounted on the rails 21a and 21b of the support plate 22 so as to be movable. In addition, the elevation control unit 30 is mounted on one side of the upper surface of the support plate 22 through a pair of vertical guides 24a and 24b, and the middle shaft holder 25 is vertically mounted to the other side. The upper edge 25a of the intermediate shaft holder 25 has a plurality of U-shaped cutouts 26a, 26b and 26d having different sizes, and the cutouts 26a and 26b ( In each of 26c and 26d, recessed grooves 27a, 27b, 26c and 27c corresponding to the thickness of the flange 129 of the intermediate shaft 125 are formed. In addition, support levers 28a and 28b respectively connected to the operating levers 19a and 19b of the hydraulic cylinders 17a and 17b extend to the roll fixing body 10 on one side.

On the other hand, the elevating adjustment unit 30 is a T-shaped guide member 31a fitted to slide in a T-shaped guide groove (not shown) of the vertical guides 24a and 24b, as shown in FIG. 31b) is provided with a support plate 32 formed on one side, an arc-shaped recess 32a is formed at the upper edge of the support plate 32, an indicator needle 33 is provided at one corner, and the indicator needle 33 ) Is positioned to teach the ruler 34 attached to one side of the vertical guide 24a.

In addition, the support plate 32 forms a rectangular cutting space 35 at a lower edge thereof, and a female screw hole (not shown) is formed in the crosspiece 36 connected across the space 35, and the female screw hole has a lower portion. The male thread portion 37a of the rotating rod 37 extending from the screwed portion. In addition, the rotating rod 37 is a bearing block 38a is mounted to the middle portion, the bearing block 38a is firmly fixed to one side edge of the support plate 22 as a bolt (not shown), the rotating rod 37 The bearing block 38b is also inserted into the lower end of the bearing block 38b, and a bevel gear 39a is formed between the bearing blocks 38a and 38b, and the bevel gear 39a is supported by a support plate 22. It is screwed with the bevel gear (39b) of the connecting rod (63) rotatably mounted through the bearing blocks (62a, 62b) on the lower surface of the. In addition, the connecting rod 63 is inserted into the through hole 64a of the bracket 64 extending to the lower side of one side edge of the support plate 22 so that one end thereof has a rotary knob 65. Therefore, when the operator rotates the rotary knob 65 left and right, it rotates the bevel gear 39b through the connecting rod 63, which drives the rotary rod 37 through the bevel gear 39b, the rotary rod ( 37 is a female threaded hole of the male thread portion 37a and the crosspiece 36, and the support plate 32 is a T-shaped guide member 31a, 31b in the T-shaped guide groove of the vertical guide 24a, 24b. Since the base plate 32 is coupled, the support plate 32 moves upward.

Reference numeral 70 is a hook, 72 is a protective plate, 74 is a stopper, and 76 is a U-shaped beam member.

According to the present invention configured as described above, as shown in FIG. 6, when the roll 100 to be disassembled is mounted in the roll fixing box 12 of the roll fixing body 10, the partitions 13a and 13b are mounted on the partition walls 13a and 13b. The body 110 of the roll 100 between the bearing block 120 is inserted and fixed in the concave portion of the fixed roll fixing jig 15. In this case, the flange 129 of the intermediate shaft 125 to be disassembled is fixed. Is inserted into any one of the concave grooves 27a, 27b, 27c of the U-shaped cutout provided in the intermediate shaft holder 25 of the intermediate shaft moving body portion 20 moving body portion 20.

Here, the operator operates the hydraulic system 50 in accordance with the length of the roll 100 to be disassembled to adjust the length of the operating rods 19a and 19b of the hydraulic cylinders 17a and 17b. 19b respectively moves the intermediate shaft holder 25 through the support levers 28a and 28b. The intermediate shaft holder 25 has the pulley 23 of the support plate 22 being a rail of the bed 40. The upper and lower portions of the intermediate shaft 125 can be precisely fitted into one concave groove of the intermediate shaft holder 25 by sliding the upper and lower portions of the intermediate shaft 125.

In addition, the operator rotates the rotary knob 65 of the lifting control unit 30 left and right to support the arc-shaped recess 32a of the support plate 32 against the lower surface of the intermediate shaft 125 to support it from below. And then actuate the hydraulic system 50 to push the actuating rods 19a and 19b forward from the hydraulic cylinders 17a and 17b, and then to the roll fixing jig 15 of the roll fixing box 12. The intermediate shaft 125 in which the flange 129 is fitted into the concave groove provided in the intermediate shaft holder 25 of the intermediate shaft moving body 20 from the body portion 110 of the roll 100 placed therein is formed of the support plate 22. As the pulley 23 moves on the rails 21a and 21b, the body 110 and the intermediate shaft 125 are disassembled by the hydraulic force. At this time, since the intermediate shaft 125 is horizontally supported on the support plate 32 and the intermediate shaft holder 25 of the elevating adjustment unit 30, the intermediate shaft 125 is positioned on a stable state without falling off on the intermediate shaft moving body 20. do.

When the intermediate shaft 125 of one side is separated from the body 110 as described above, the operator lifts the roll 100 from the roll fixing body 10 and positions it in the opposite direction, and then the same process as described above. The intermediate shaft 125 on the other side can also be easily disassembled by hydraulic pressure.

In addition, when the maintenance work of the roll 100 is completed, the intermediate shaft 125 is reassembled at both ends of the body part 110, which is an opposite process of the disassembly work. The detailed description thereof will be omitted since the assembly operation can be easily performed.

According to the present invention as described above, the disassembly and assembly of the body portion 110 and the intermediate shaft 125 of the roll 100 between the roll fixing body portion 10 and the intermediate shaft moving body portion 20 is hydraulic ( Since it can be made by a hydraulic force, it is possible to work in a short time by only one worker, thereby greatly improving the work productivity. In addition, since the intermediate shaft 125 is not dropped while being disassembled, the risk of safety accidents of the worker is eliminated, and since the intermediate shaft 125 does not have to be hit, the damage of the parts is prevented and a practical effect is obtained. .

Claims (1)

In the device for disassembling and assembling the roll 100 having the body portion 110 of the detective rod, each of which is equipped with an intermediate shaft 125, fixed on a bed 40 of a predetermined size, A roll fixing body part 10 having semicircular recesses 15a formed at both sides of the body part 110 of the roll 100 to be fitted at an upper side thereof; By hydraulic cylinders 17a and 17b supplied with hydraulic pressure by the pulley 23 and the hydraulic system 50 on the pair of rails 21a and 21b adjacent to the side of the roll fixing body 10. Intermediate shaft moving body portion 20 is formed so as to be movable before, after, the concave groove in which the flange portion 129 of one side intermediate shaft 125 of the roll 100 is fitted in the upper side in a semicircular shape; And installed between the roll fixing body portion 10 and the intermediate shaft moving body portion 20 and vertically installed vertically so as to be rotatable by the rotary handle 65 and the bevel gears 39a and 39b. A male screw portion 37a is formed on the rotating rod 37, and the support plate 32 is screwed to the male screw portion 37a of the rotating rod 37 to slide up and down during rotation of the rotating rod 37. It is possible to disassemble and assemble the body portion 110 and the intermediate shaft 125 of the roll 100 by including a lifting control portion 30, which forms an arc-shaped recess 32a into which the shaft 125 is fitted. Automatic roll disassembly and assembly device.