KR200181420Y1 - Apparatus for exchanging coupling shaft of rolling mill - Google Patents

Abstract

The present invention is equipped with a hook ring 12 is hooked to the hook of the crane on the upper surface, the movable body 10 and the screw hole 14 formed in the center of the body, and guides to enable the forward and backward movement of the movable body 10 The upper open rectangular body 15 having the groove 16 formed in the longitudinal direction and the auxiliary guide groove 17 formed on the length guide surfaces facing each other, and the bearing members 23a mounted on both sides of the rectangular body 15. Both ends are supported at the lower end (23b), the screw shaft 20 is assembled with the screw hole 14, and one end flange 105a of the coupling shaft 105 is connected to the connection flange 31 A plurality of weights 35 and a screw shaft 20 fitted to a detachable bracket 30 mounted on the center of the lower surface of the square body 15 and a weight shaft 36 mounted on one side of the square body 15. Up, down, left and right flow of the moving body 10 forward and backward along the guide groove 16 during the rotation operation of the handle 25 mounted at one end of the It provides a couple ringchuk replacement unit in a rolling mill comprising a guide roller unit 40 to move cloud along the auxiliary groove 17 to prevent.

Description

Coupling shaft replacement device of rolling mill {APPARATUS FOR EXCHANGING COUPLING SHAFT OF ROLLING MILL}

The present invention is a heavy object that is hooked by a ceiling crane, hoist, or other heavy weight handling tool when replacing the coupling shaft that transmits power from the wire mill, and maintains the balance of the coupling shaft that is inclined in a place where replacement is difficult. The present invention relates to a coupling shaft replacement device of a rolling mill that can be replaced easily, quickly and safely.

1 and 2 are a perspective view and a longitudinal cross-sectional view showing a general rolling equipment, as shown, the rolling mill 100 is a plurality of stands 102 installed inclined to the bed plate 103 on the base concrete 101, A pair of roll member 104 through which the rolled material passes, a coupling shaft 105 connected to the front end thereof, and a drive motor 107 and up connected to the reducer 106 mounted inside the base concrete 101. It consists of a looper (uplooper) 108, etc. to roll the material passing between the roll member 104.

In order to maintain the coupling shaft 105, which is a power transmission device for transmitting the power of the driving motor 107 to the roll member 104 of the stand 102 inclined through the reduction gear 106 in the rolling mill 100, the foundation concrete The coupling shaft 105 installed inclined in the 101 should be repeatedly dismantled from the reducer 106, taken out, and then reassembled.

Conventional work of replacing heavy and obliquely installed coupling shafts 195 involves hooking the coupling shafts 105 as ceiling cranes, hoists and other heavy load handling mechanisms, and then keeping the coupling shafts 105 in balance. It was lifted to the top and withdrawn from the base concrete 101 to the outside.

However, since the center of gravity of the coupling shaft 105 is unstable when the coupling shaft 105 having the installation structure inclinedly assembled in the basic concrete 101 is drawn out to the outside, the center of gravity of the coupling shaft 105 is unstable. There is a high possibility of causing damage to equipment due to interference, and withdrawal work too carefully to prevent the interference of other equipment, it takes excessive replacement time and reduces work productivity and risks of safety disaster during work. Since the replacement work is always performed in the insecure file hanger state, which is inherent, it is difficult to secure safety, which is a reason for disqualification of the standard maintenance work.

Therefore, the present invention has been devised in view of the above-mentioned conventional problems, and its object is to provide a quick and without wire hanger operation while maintaining and maintaining the center of gravity of the coupling shaft installed inclined at a narrow and complicated place. To provide a coupling shaft replacement device for rolling mills that can easily and accurately replace couple shafts.

1 is a perspective view showing a typical rolling equipment,

Figure 2 is a longitudinal sectional view showing a typical rolling equipment,

Figure 3 is a block diagram showing a coupling shaft replacement apparatus of the rolling mill according to the present invention,

Figure 4 is an exploded perspective view showing a coupling shaft replacement apparatus of the rolling mill according to the present invention,

Figure 5 is a longitudinal sectional view showing a coupling shaft replacement apparatus of the rolling mill according to the present invention,

6 is a configuration diagram of the guide portion constituting the coupling shaft replacement apparatus of the rolling mill according to the present invention,

Figure 7 (a) (b) (c) is a perspective view, a longitudinal sectional view and an exploded perspective view of the guide portion constituting the coupling shaft replacement apparatus of the rolling mill according to the present invention.

* Explanation of symbols for the main parts of the drawings *

10 ..... Moving object 12 ..... Hook hook

14 ..... Thread hole 15 ..... Square body

16 ..... Information Home 17 ..... Supporting Home

20 ..... Screw shaft 25 ..... Handle

30 ..... Detachable Bracket 40 ..... Guide Roller Section

45 ..... 1st roller 48 ..... 2nd roller

As a technical configuration for achieving the above object, the present invention,

In the rolling mill having a plurality of stands, a pair of roll members through which the rolled material passes, a coupling shaft, a drive motor connected via a reducer,

The hook hook is hooked to the hook of the crane on the upper surface, the movable body having a screw hole in the center of the body, and the guide groove is formed in the longitudinal direction to enable forward and backward movement of the movable body, and assisted with the length guide surfaces facing each other. Both ends are supported by a rectangular body having guide grooves formed, bearing members mounted on both sides of the rectangular body, a screw shaft assembled with the screw hole, and a coupling flange at one end of the coupling shaft connected to each other. Removable bracket mounted on the center of the lower surface of the rectangular body, and the plurality of weights mounted on the weight shaft mounted on one side of the rectangular body and the forward and backward along the guide groove during the rotation operation of the handle mounted on one end of the screw shaft Rolling, characterized in that it comprises a guide roller for moving the rolling along the auxiliary guide groove to prevent the up, down, left and right flow of the moving body A coupling device, by replacing ringchuk maryeonham.

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

Figure 3 is a block diagram showing a coupling shaft replacement device of the rolling mill according to the present invention, Figure 4 is an exploded perspective view showing a coupling shaft replacement device of the rolling mill according to the present invention, Figure 5 is a couple of the rolling mill according to the present invention Longitudinal cross-sectional view showing a ring shaft replacement device.

3 to 5, the replacement device 1 of the present invention is hanging on the hook of a crane (not shown), which is a mobile device, to hook the coupling shaft 105 mounted inclined in the basic concrete 101. As a simple and quick replacement without the need, such a device includes a moving body 10, a square body 15, a screw shaft 20, a removable bracket 30, a weight 35 and a guide roller 40. It is composed.

That is, the movable body 10 has a hook ring 12 is integrally mounted to hook the hook of the crane not shown in the center of the upper surface, the screw hole 14 is screw assembly in the center of the body screw 14 Penetrates.

The upper open quadrangular body 15 to which the movable body 10 is assembled has a guide groove 16 in a longitudinal direction to enable forward and backward movement of the movable body in an inner space, and face each other within the guide groove 16. The length guide surface is formed to recess the auxiliary guide groove 17 in which the guide roller portion 40 is disposed.

In addition, the screw shaft 20 is screwed to the screw hole 14 of the movable body 10, the cover 18 is assembled as a fastening member (18a) to constitute one side of the square body 15, and Both ends are supported by bearing members 23a and 23b respectively assembled to the other side of the square body 15 so that smooth rotation is possible, and one end of the screw shaft 20 is operated by the operator in the forward or reverse direction by hand. The handle 25 is mounted by fastening the nut member 25a to the screw portion 20a which protrudes outward so that the movable body 10 assembled to the square body 15 can slide in the forward and backward directions. .

Here, the screw shaft 20 is a male screw of the trapezoidal cross section formed on the outer peripheral surface of the trapezoidal cross section formed in the screw hole 14 of the movable body so as to smoothly perform the forward and reverse movement of the movable body 10 and screwed do.

In addition, a detachable bracket 30 is detachably assembled as a plurality of fastening members 30a at the center of the lower surface of the rectangular body 15, and the coupling shaft 105, which is a replacement object, is provided at the lower end of the detachable bracket 30. The coupling flange 31 is integrally mounted so that one end of the flange 105a can be detachably connected as a plurality of fastening members 105a. At this time, the removable bracket 30 is preferably installed at an angle of 45 ° inclination so as to correspond to the flange 105 and the connecting flange 31 of the coupling shaft 105 having an inclined installation structure.

And, the other side of the square body 15 is coupled to the coupling shaft 105, which is a heavy object to the removable bracket 30, so that the center of gravity of the square body 15 hanging on the hook of the crane can be adjusted appropriately. The weight shaft 36 is horizontally mounted on one side of the quadrangle body 15, and is fitted with a plurality of weights 35 that can be inserted therein. Here, one end of the weight shaft 36 is supported by an auxiliary cover 37, which is assembled as a plurality of fastening members 37a on one side of the rectangular body 15, and the other end is inserted into the weight shaft 36. The nut 36a and the washer 36b are assembled to prevent the weight 35 from being separated.

On the other hand, the guide grooves 16 of the rectangular body 15 are rotated on the left and right sides of the movable body 10 facing the auxiliary guide grooves 17 of the rectangular body 16 when the handle 25 is rotated. Accordingly, the guide roller portion 40 is configured to move along the auxiliary guide groove 17 so as to prevent the up, down, left and right flow of the moving body 10 forward and backward.

The guide roller portion 40 is a fastening member 42a in the mounting groove 41 recessed on both sides of the movable body 10, as shown in Figs. 6 and 7 (a) (b) and (c). The auxiliary guide groove is rotatably assembled through a roller base 42 to be assembled, and a circular shaft 43 and a first bearing member 44 assembled perpendicular to the assembly hole 42b of the roller base 42. First and second rollers 45 which move their outer circumferential surfaces in contact with the upper and lower surfaces of 17 and the circular pin 46 and the second bearing member 47 inserted into the pin holes 43c of the circular shaft 43. Is equipped with a square hole (49a) that is rotatably assembled via a second side roller 48 and the outer circumferential surface of the second roller 48 to move in contact with the outer circumferential surface in contact with the side of the auxiliary guide groove (17). The cover member 49 is assembled to one side of the first roller 45 as a plurality of fastening members. The first and second rollers 45 and 48 are assembled by outer rings 45a and 48a, inner rings 45b and 48b, spacers 45c and 48c, respectively.

In FIG. 7, reference numeral 42c is an assembly hole of the roller base 42 to which the fastening member 42a is assembled, and 43d is a seating groove in which the second roller 48 is seated.

It describes the operation of the present invention made of the configuration as described above.

When the coupling shaft 105, which is a heavy product installed inclined in the basic concrete 101 of the rolling mill 100, is to be replaced, first, by disassembling the stand 102, the upper flange 105a of the coupling shaft 105 is a power transmission mechanism. After exposing the hook hook 12 of the mobile body 10 to the hook of the crane which is a mobile device to configure the square body 15, the mobile body 10 is assembled to the crane.

In addition, the connection flange 31 of the lower end of the detachable bracket 30 mounted obliquely on the lower surface of the rectangular body 15 is exposed as the upper flange 105a and the plurality of fastening members 31a of the coupling shaft 105. The lower end of the coupling shaft 105 connected to the reduction gear 106 is released. At this time, the inclination of the connection flange 31 can be changed by replacing the mounting bracket 30 in accordance with the installation inclination angle of the coupling shaft 105.

In the state in which the coupling shaft 105, which is a heavy object, is connected to the detachable bracket 30 on the lower portion of the square body 15 caught by the crane as described above, the handle 25 installed on the square body 15 is fixed to grasp the center of gravity. When turned clockwise or counterclockwise, the screw shaft 20 assembled with the screw hole 14 of the movable body 10 is rotated in the forward or reverse direction, and thus, along the guide groove 16 of the square body 15. The moving body 10 can maintain a horizontal state by maintaining the center of gravity of the square body 15 hanging on the hook of the crane while moving forward or backward.

The first roller 45 of the guide roller part 40 is in contact with the upper and lower surfaces of the auxiliary guide grooves 17 formed on both inner surfaces of the rectangular body 15 when the moving body 10 moves forward and backward. Since it moves, it prevents the up and down flow of the moving body 10, and because the second roller 48 is in contact with the vertical side of the auxiliary guide groove 17 to move the cloud to prevent the left and right flow.

Accordingly, after maintaining the center of gravity of the square body 15, which is a heavy object and the coupling shaft 105, which is a replacement object inclined to the bottom, without shaking, the hook of the crane is lifted, and the square body 15 hanging thereon is gradually lifted. By lifting, the coupling shaft 105, which is assembled obliquely in the basic concrete 101, can be quickly and accurately replaced, and can perform safe maintenance work.

According to the present invention having the configuration as described above, after the coupling shaft is detachably connected to the lower portion of the rectangular body in which the moving body is assembled forward and backward, the moving object hanging on the hook of the crane is moved forward and backward as a handle. Regardless of the size and weight of the coupling shaft, the entire center of gravity of the rectangular body can be freely, quickly and accurately adjusted and maintained. It can be carried out safely without interference with other equipments to prevent safety accidents during work, and it is possible to replace the product quickly so that the productivity of work can be remarkably improved.

Claims (3)

In the rolling mill having a plurality of stands 102, a pair of roll member 104 through which the rolled material passes, the coupling shaft 105, the drive motor 107 connected via the reducer 106, The hook ring 12 to which the hook of the crane hangs is mounted on the upper surface, the movable body 10 having the screw hole 14 formed in the center of the body, and the guide groove 16 to enable the forward and backward movement of the movable body 10. ) Is formed in the longitudinal direction, the upper open rectangular body 15 having the auxiliary guide groove 17 on the length guide surface facing each other, and the bearing members (23a) (23b) mounted on both sides of the rectangular body (15) The square body having both ends supported at the lower end, and having a screw shaft 20 assembled with the screw hole 14 and a connecting flange 31 to which the flange 105a of one end of the coupling shaft 105 is connected. One end of the detachable bracket 30 mounted at the center of the lower surface of the 15 and the weight 35 and the screw shaft 20 fitted to the weight shaft 36 mounted on one side of the rectangular body 15. In order to prevent the vertical flow of the moving body 10 forward and backward along the guide groove 16 during the rotation operation of the handle 25 mounted on the handle 25 Coupling ringchuk replacement unit in a rolling mill, characterized in that along the sub-groove 17 is a guide roller unit 40 to move cloud. The method of claim 1, The screw shaft 20 is characterized in that the male screw of the trapezoidal cross section is formed on the outer circumferential surface to smoothly move the moving body 10 forward and backward, and is screwed with the female screw of the trapezoidal cross section formed in the screw hole 14 of the movable body. Coupling shaft replacement device for rolling mill. The method of claim 1, The guide roller portion 40 is a roller base 42 assembled as a fastening member 42a in a seating groove 41 recessed on both sides of the movable body 10, and the assembly hole 42b of the roller base 42. The first roller 45 is rotatably assembled through the circular shaft 43 and the first bearing member 44 assembled vertically to the upper and lower surfaces of the auxiliary guide groove 17 to move in rolling. ) And a circular pin 46 inserted into the pin hole 43c of the circular shaft 43 and the second bearing member 47 are rotatably assembled so that an outer circumferential surface of the auxiliary guide groove 17 is provided. A cover which is assembled as a plurality of fastening members on one side of the first roller 45 by forming a square roller 49a which exposes only the outer circumferential surface of the second roller 48 and the second roller 48 which are brought into contact with the cloud. Coupling shaft replacement apparatus of the rolling mill, characterized by comprising a member (49).