KR100983357B1 - Sleeve and bush disassembly coupling device of roll choke - Google Patents

Abstract

The present invention relates to a sleeve and bush decomposition coupling device of a roll choke, comprising a vertical support beam (10), an up-down block (20) mounted to be movable along the support beam (10), and the up-down block (20). Mounted on the arm 30 so as to be rotatable to the support beam 10 and the arm 30 formed to extend in a direction perpendicular to the support beam 10, and to have an adjustable distance therebetween and parallel to the support beam 10. At least two expansion blocks 40, a stopper 44 mounted to be movable along the expansion block 40 and protruding more outward than an outer edge formed by the expansion block 40, and the expansion block ( The roll choke support 80 includes a roll choke support 80 which supports the roll chocks so that the roll chocks are erected and mounted on the lower part of the rotation path of 40) and has a groove 82 having an inner diameter larger than the outer diameter of the bush of the roll chokes. According to this, The work of disassembling and joining the bushes and bushes from the choke has the effect of being performed quickly and precisely.

Choke, Sleeve, Bush, Disassemble, Combine

Description

Apparatus for assembling and disassembling a sleeve and a bush in a chock bearing}

1 is a working situation diagram showing an exploded coupling method of a sleeve and a bush of a roll choke according to the prior art;

Fig. 2 is a front schematic view of the roll choke according to the present invention with the sleeve and bush disengagement coupling device partially cut away in its entirety.

3 is an exploded perspective view showing an exploded view of the apparatus of the present invention;

4 is an explanatory view of the operation of the present invention.

[Description of Reference Numerals]

10: support beam 20: up-down block

30: arm 40: expansion block

44: stopper 50: sliding block

52: center adjustment protrusion 70: link bar

80: roll choke support 82: groove

84: centering hole 90: casing

TECHNICAL FIELD The present invention relates to a sleeve and bush disassembly coupling device of a roll choke, and more particularly, to a sleeve and a bush of a roll choke in which a work of disassembling and combining a hollow cylindrical sleeve and a bush from a choke can be performed quickly and precisely. The disassembly coupling device relates.

In general, roll chock bearings are used to rotatably support a rotating body such as a rolling roll used in a steel mill, and the roll chocks are formed with hollow cylindrical hollows, and the hollows of the roll chocks are hollow. A cylindrical bush is mounted, and a hollow cylindrical sleeve is mounted inside the bush, whereby the rotating body is fitted inside the sleeve so as to be rotatable.

When the roll chocks support the rotating body for a certain time, the sleeve and the bush are worn and deformed, and replacement thereof is necessary. According to the related art according to FIG. 1, after the roll choke 110 is separated from the rotating body, the roll choke 110 is removed. The roll choke 110 is placed on the floor so that the center line of the coil is positioned in the vertical direction, and the eye bolt 150 is fitted into the female threaded hole 140 formed at least two in each of the sleeve 130 and the bush 120. After that, the wire rope 160 connected to the eye bolt 150 is hooked on the hook 170 of the overhead crane and wound up to disassemble the sleeve 130 and the bush 120 from the roll choke 110. In addition, the method of coupling the new sleeve and the bush to the roll choke 110 is performed in the reverse order.

However, this conventional technique requires that the center line of the sleeve 130 and the bush 120 and the center line of the roll choke 110 coincide with each other while the operator located on the floor and the operator of the overhead crane exchange signals with each other. Since the work is smoothly performed, it requires a lot of work time and skill, and the work efficiency is very low. If there is not enough signal between workers, the heavy sleeve and bush collide with the roll chocks and break with each other. And the risk of a safety accident by manual work was to have a very big problem.

The present invention is to solve the above-mentioned conventional problems, the operation of separating the sleeve and bush that needs to be replaced from the roll choke and the operation of coupling the new sleeve and bush to the roll choke can be performed quickly and precisely It is an object to provide a choke sleeve and bush disassembly coupling device.

As a technical configuration for achieving the above object, the present invention is a device configured to disassemble a hollow cylindrical sleeve and bush from a roll choke or to be coupled to a roll choke, the vertical support beam and the support beam An up-down block mounted to be movable along the arm, an arm rotatably mounted to the up-down block, the arm being elongated in a direction perpendicular to the support beam, and mounted to the arm such that a distance between each other is adjustable and parallel to the support beam. At least two expansion blocks, a stopper mounted so as to be movable along the expansion block and protruding more outward than an outer edge formed by the expansion block, and a roll so that roll chocks stand on the lower part of the rotation path of the expansion block. A groove supporting the choke and having an inner diameter larger than the outer diameter of the bush of the roll choke The roll chock supporting the roll of the choke by the sleeve and the bush decomposition connecting apparatus according to claim is included in maryeonham.

The present invention also includes a sliding block mounted to the arm to be movable in the vertical direction and positioned between the expansion blocks and connected to each of the expansion blocks via at least two link bars, and surrounding the expansion block and the sliding block. It is characterized in that it further comprises a casing fixed to the arm so that the expansion path of the expansion block and the vertical movement path of the sliding block is opened.

In addition, the present invention is characterized in that the center adjusting hole is formed in the center of the groove, the center adjusting projection which can be inserted into the center adjusting hole at the lower end of the sliding block is formed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a front schematic view of the roll choke according to the present invention with the sleeve and bush disassembly coupling device partially cut away, and FIG. 3 is an exploded perspective view, in which a support beam 10 having a long cylindrical length is formed up and down. It is fixedly installed perpendicular to the floor (F) so as to stand long.

The outer surface of the support beam 10, the key 12 is protruded up and down a predetermined length, and the rack 14 to which the pinion 16, which will be described later is engaged is coupled up and down a predetermined length.                     

A hollow cylindrical up-down block 20 is fitted to the support beam 10 so as to be movable up and down along the support beam 10. The key 12 is provided on an inner surface of the up-down block 20. The key groove 22 to be fitted is formed to prevent the up-down block 20 from being rotated about the support beam 10, and the up-down block 20 includes a pinion that is rotationally driven by the drive motor 24. 16 is installed and engaged with the rack (14).

One end of the arm 30 having a long length in a direction perpendicular to the support beam 10 is rotatably mounted to the up-down block 20. An up-down block receiving hole formed at one end of the arm 30 is formed. The up-down block 20 is accommodated in 32 so that the arm 30 is rotatable about the up-down block 20.

In this case, a flange-like protrusion 26 is formed on the outer peripheral surface of the lower end of the up-down block 20 to prevent the arm 30 from falling downward due to its own weight, and a predetermined length is continuous on the outer peripheral surface of the protrusion 26. A screw thread 28 is formed, and a gear 36, which is rotationally driven from the driving motor 34 mounted to the arm 30, is engaged with the screw thread 28.

In addition, a cap 18 serving as a stopper is fixedly installed at the upper end of the support beam 10 to limit the maximum height at which the up-down block 20 is raised.

At least two expansion blocks 40 are mounted on the free end of the arm 30 so that the distance from each other is adjustable and parallel to the support beam 10. Thus, the expansion blocks 40 are separated from each other or close to each other. An example of a structure that can be moved in a losing direction is shown below.

That is, a sliding block 50 having a long length is mounted on the free end of the arm 30 so as to be movable up and down so as to be parallel to the support beam 10. The cylinder 60 is mounted so that the cylinder is forward and backward toward the lower side, and the upper end of the sliding block 50 is connected to the lower end of the rod 62.

In addition, at least two expansion blocks 40 are mounted on the sliding block 50 in a symmetrical manner, wherein one side of the link bar 70 has a predetermined length at an upper end and a lower end of the expansion block 40. An end is hinged and the other end of the link bar 70 is hinged to an upper end and a lower end of the sliding block 50, thereby preventing the expansion block 40 from moving upward and downward. When the 50 is moved up and down, the expansion block 40 has a configuration capable of moving in a direction away from or near each other with respect to the sliding block 50. In addition, the casing 90 is fixed to the arm 30 to block the vertical movement of the expansion block 40, preferably, the casing 90 is the expansion block 40 and the sliding block 50 It is fixed to the arm 30 so as to surround the expansion path of the expansion block 40 and the vertical movement path of the sliding block 50 has an open shape.

At least one of the expansion blocks 40 is mounted with a stopper 44 to protrude more than the surface located farthest from the support beam 10 to be moved up and down along the expansion block 40 by the screw shaft 42, The screw shaft 42 is rotationally driven by the drive motor 46. In addition, the expansion block 40 is preferably formed so that the surface of the portion located away from the support beam 10 has an arc shape, the portion in which the sliding block 50 and the expansion block 40 facing each other is lower It is preferred that the formed to have a slope inclined toward the centerline of the sliding block 50 toward.

In addition, a roll choke support 80 is installed on the bottom F so as to be positioned below the rotation path of the expansion block 40. The roll choke support 80 has a size larger than the outer diameter of the bush of the roll choke. A groove 82 having an inner diameter is formed to be concave on the upper surface, a center adjusting hole 84 is formed at the center of the groove 82, and a center adjusting hole 84 at the lower end of the sliding block 50. A centering projection 52 that can be inserted into is formed. In addition, the roll choke support 80 is provided with at least two holders 86, which are moved forward and backward toward the roll choke 110, and a cylinder 88 for driving the holder 86 is provided.

Of course, a sensor may be used for the up and down movement of the up-down block 20, the rotational movement of the arm 30, and the adjustment of the position of the centering protrusion 52 and the centering hole 84.

The operation of the present invention having the above configuration will be described.

When the roll choke 110, which is the work object, is placed on the roll choke support 80, the holder 86 is advanced toward the roll choke 110 by the driving of the cylinder 88, and the holder 86 As a result, the roll choke 110 is slightly moved so that the center line of the roll choke 110 coincides with the centering hole 84. As such, when the roll choke 110 is placed on the roll choke support 80, the holder 86 is spaced apart from the roll choke 110 by the reverse driving of the cylinder 88.                     

Subsequently, when the driving motor 24 is driven, the pinion 16 is rotated along the rack 14, whereby the up-down block 20 is raised along the support beam 10, and the up-down block 20 When moved to the upper portion of the support beam 10, the rotation of the drive motor 24 is stopped, and the drive motor 34 is driven.

By driving the drive motor 34, the gear 36 is rotated along the thread 28, whereby the arm 30 is rotated about the up-down block 20, and the arm 30 is rotated. When the sliding block 50 is located directly above the roll choke 110, the rotation of the drive motor 34 is stopped. At this time, the rod 62 of the cylinder 60 mounted on the arm 30 is reversed to raise the sliding block 50 connected to the rod 62 so that the expansion block 40 is close to each other, and the stopper ( Keep 44) as low as possible.

When the rotation of the driving motor 34 is stopped, the up-down block 20 is lowered along the support beam 10 by the driving of the driving motor 24, and the driving of the driving motor 24 is a sliding block ( The centering projection 52 of 50 is continued until the centering hole 84 of the roll choke support 80 is fitted.

When the center adjusting protrusion 52 is fitted into the center adjusting hole 84, the rotation of the driving motor 24 is stopped, and the rod 62 is moved forward, that is, lowered by driving the cylinder 60. As a result, the sliding block 50 connected to the rod 62 is lowered. At this time, the expansion block 40 is blocked by the casing 90, the vertical movement of the bar bar, the link bar 70 connecting the sliding block 50 and the expansion block 40 is turned and at the same time the expansion block 40 are extended and moved in a direction away from each other.

When the expansion block 40 is extended to be close to or in close contact with the inner surface of the sleeve 130 of the roll choke, the cylinder 60 is stopped to maintain its position, and the arm is driven by the driving motor 24. Raise (30). At this time, the stopper 44 positioned at the lower end of the expansion block 40 is caught by the lower end of the bush 120 and the sleeve 130 so that the bush 120 and the sleeve 130 can be separated from the roll choke.

Of course, the bush and sleeve separated from the roll chocks are moved to a disposal site, or to a support provided separately to be located below the rotation path of the sliding block 50.

The new bush and sleeve can then be coupled to the roll chocks in a reverse order to the above.

As described above, according to the sleeve and bush disassembly coupling device of the roll choke according to the present invention, the disassembly coupling of the sleeve and the bush is performed quickly and precisely by moving the plurality of expansion blocks contracted and expanded vertically and horizontally. Has an excellent effect.

Claims (3)

An apparatus configured to disassemble or engage a hollow cylindrical sleeve and bush from a roll choke, A vertical support beam 10, An up-down block 20 mounted to be movable along the support beam 10; An arm 30 rotatably mounted to the up-down block 20 and formed to extend in a direction perpendicular to the support beam 10; A sliding block 50 mounted on a free end of the arm 30 to be movable upward and downward, and having inclined surfaces inclined downward in directions symmetrical with each other on left and right sides thereof; An inclined surface that is inclined in a shape corresponding to the inclined surface of the sliding block 50 is formed on one side, and is mounted in a symmetrical form on both the left and right sides of the sliding block 50 so that the sliding block 50 moves downward when the sliding block 50 moves downward. A pair of expansion blocks 40 which extend and move in a direction away from each other with respect to the block 50, and when the sliding block 50 moves upward, in a direction in which the sliding block 50 moves closer to each other with respect to the sliding block 50. and, It is fixed to the arm 30 so as to surround the expansion block 40 and the sliding block 50, to provide a vertical movement path for the sliding block 50, to the pair of expansion block 40 The casing 90 provides only the expansion or contraction movement path while blocking the downward movement path, A plurality of link bars 70 connecting the sliding block 50 and the expansion block 40; A stopper 44 mounted to be movable along the expansion block 40 and protruding more outward than an outer edge formed by the expansion block 40; The roll choke support 80 supports the roll chocks so that the roll chocks are placed on the lower part of the rotation path of the expansion block 40 and has a groove 82 having a larger inner diameter than the outer diameter of the bush of the roll chokes. Sleeve and bush disassembly coupling device of the roll choke characterized in that it comprises. delete According to claim 1, wherein the center adjustment hole 84 is formed in the center of the groove 82, the center adjustment projection 52 that can be inserted into the center adjustment hole 84 at the lower end of the sliding block (50). Sleeve and bush disassembly coupling device of a roll choke.

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