KR100815698B1 - Apparatus for preventing unnecessary substance from penetration into work roll driving connection parts in rolling utilty - Google Patents

Abstract

A device for preventing alien substances from penetrating into work roll driving connection parts in a rolling apparatus is provided to stably maintain lubricating function of grease provided on rotation parts of the work roll chocks by blocking penetration of alien substances such as cooling water into the work roll driving connection parts through an opening between work roll chocks. A device for preventing alien substances from penetrating into work roll driving connection parts in a rolling apparatus comprises: upper and lower bases(10,20) fixed to a frame of the rolling apparatus such that the upper and lower bases are disposed on parts at which upper and lower work roll couplings are positioned; upper and lower coupling supports(30,40) which are mounted on the upper and lower bases such that the upper and lower coupling supports are vertically movable, and through which the work roll couplings pass such that the work roll couplings are rotatably supported by the upper and lower coupling supports; and an elastic member(50) which is mounted between the upper and lower coupling supports to block a space therebetween, and which has elasticity in the vertical direction.

Description

Apparatus for preventing unnecessary substance from penetration into work roll driving connection parts in rolling utilty}

1 is a schematic configuration diagram showing a general rolling equipment;

2 is a view for explaining a problem occurring in the conventional rolling equipment;

Figure 3 is a schematic block diagram showing a rolling equipment having a work roll drive connection foreign matter intrusion prevention apparatus according to the present invention;

4 is a left side view of FIG. 3;

5 is a detailed view of main parts of the present invention;

6 is an exploded perspective view of FIG.

※ Explanation of symbols about main part of drawing ※

10: upper base 12, 22: groove

14, 24: cover 20: lower base

26: foreign matter discharge pipe 30: upper coupling support

32, 34: support plate 33, 35: idle roll

40: lower coupling support 42, 44: support plate

43, 45: idle roll 50: expansion and contraction member

The present invention relates to a foreign matter penetration prevention device of the work roll drive connection of the rolling equipment, foreign matters such as cooling water to prevent the foreign matter penetrating into the work roll drive connection through the gap of the work roll choke It relates to a penetration prevention device.

In general, the steel mill rolling equipment has a work roll (1) disposed above and below the steel sheet (S), as shown in Figure 1, both ends of the work roll (1) to the frame (F) of the equipment It is rotatably supported by the work roll choke 2 installed so that it can move up and down.

And, each of the work roll (1) has a configuration that is connected to the spindle to receive a rotational driving force, the connection structure of the work roll (1) and the spindle, the work roll provided at one end of the work roll (1) And a work roll drive connection consisting of a coupling (4) and a spindle coupling (5) connected to the work roll coupling (4) to provide a rotational driving force of the spindle to the work roll coupling (4). The spindle coupling 5 is also provided with a grease pump 6 for providing grease to the choke 2 which rotatably supports the work roll coupling 4.

Therefore, the rolling of the steel sheet S is performed by allowing the steel sheet S to proceed between the work rolls 1 in a state where the interval of the work roll 1 is properly adjusted by the vertical movement of the work roll choke 2. will be.

In this rolling facility, in order to prevent the thermal damage generated by the work roll 1 and the backup roll 3 while the high temperature steel sheet S proceeds, a plurality of spraying coolants are injected at a high pressure of about 110 to 210 kg / cm 2. Cooling water injection nozzles 7 are arranged above and below the steel plate S, and a part of the cooling water injected from these cooling water injection nozzles 7, in particular, the cooling water that is injected to portions away from both edge portions of the steel plate S There is a tendency to penetrate into the work roll drive connection through the gap between the chokes 2 (see FIG. 2).

The coolant that penetrates into the work roll drive connection deteriorates lubrication by flowing into the grease pump (6) and choke (2) to support rotational rotation, and uses more grease to compensate for this lubrication deterioration. As well as loading the waste grease treatment system. As a result, the waste water treatment costs are increased, and also, a reduction in the service life of the facility due to the deterioration of the lubrication function and a lot of time and cost are required for the maintenance and repair of the damaged parts. It was to have.

Accordingly, the present invention is to solve the above-mentioned conventional problems, the foreign matter such as cooling water is prevented from penetrating into the work roll drive connecting portion through the gap of the work roll choke to stabilize the lubrication function of the grease provided to the rotational part of the choke It is an object of the present invention to provide a foreign matter penetration preventing device of the work roll drive connection of the rolling equipment to be maintained.

As a technical configuration for achieving the above object, the present invention is an apparatus for preventing foreign matters such as cooling water from penetrating the work roll drive connecting portion which is a portion for transmitting the driving force to the work roll of the rolling equipment, Upper and lower bases fixed to the frame and disposed at positions where upper and lower work roll couplings are positioned; Upper and lower coupling supports mounted on the upper and lower bases to be movable up and down and rotatably supported by a work roll coupling; And a work roll drive connecting part foreign material penetration preventing device of a rolling installation including an elastic member mounted to block the upper and lower coupling supports and having elasticity in the vertical direction.

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

Figure 3 is a schematic view of the main part of the rolling equipment equipped with a foreign matter penetration prevention device of the work roll drive connection of the present invention, Figure 4 is a left side view of Figure 3, Figure 5 is a detail of the main part of Figure 3 The figure shown.

The overall configuration of the rolling equipment is similar to the conventional one, and the parts having similar configurations to the conventional one will be shown using the same reference numerals as those in Figs. 1 and 2 and the detailed description of these parts will be omitted.

The apparatus of the present invention is mounted to the frame F so as to be positioned between the work roll 1 and the work roll drive connection. The work roll drive connection means a work roll coupling 4 and a spindle coupling 5.

Preferably, the device of the present invention is mounted at the site where the work roll coupling 4 of the work roll drive connection is located, which will be described below by way of example.

The apparatus of the present invention comprises an upper base 10 fixedly fixed to the frame F such that the work roll coupling of the upper work roll is positioned at the position where the work roll coupling of the lower work roll is positioned, It has a lower base 20 fixed to (F).

The upper base 10 and the lower base 20 have grooves 12 and 22 formed at portions facing each other, and these grooves 12 and 22 form an approximately rectangular shape formed long up and down.

The upper coupling support 30 and the lower coupling support 40 are fitted into the grooves 12 and 22 of the upper base 10 and the lower base 20, respectively, to be movable upward and downward. Between the upper coupling support 30 and the lower coupling support 40 is bent to have a zigzag shape is mounted elastic member 50 having elasticity. Therefore, the elastic member 50 serves to prevent the coolant from leaking toward the work roll drive connection between the upper coupling support 30 and the lower coupling support 40.

Their configuration is shown in more detail in FIG.

The upper part of the upper base 10 and the lower part of the lower base 20 are respectively sealed by the covers 14 and 24, and the foreign matter discharge pipe 26 is installed on the cover 24 of the lower base 20. Foreign matters such as cooling water are discharged downward through the foreign matter discharge pipe (26).

The upper coupling support 30 and the lower coupling support 40 are respectively composed of upper and lower support plates 32, 34, 42 and 44, and the upper coupling support 30 A semicircular shape is provided at the center portions of the upper and lower support plates 32 and 34 facing each other, and the center portions of the upper and lower support plates 42 and 44 facing each other. A groove is formed so that the idle rolls 33, 35, 43, 45 are spaced apart by a predetermined interval along the circumferential direction of the groove.

These idle rolls 33, 35, 43, 35 allow the rotation of the coupling fitted to the site to be smoothly made.

In addition, the upper support plate 32 of the upper coupling support 30 and the upper support plate 42 of the lower coupling support 40 are respectively provided with spring support protrusions (32a, 42a), Spring support protrusions 34a and 44a are also provided at the lower ends of the lower support plate 34 of the upper coupling support 30 and the lower support plate 44 of the lower coupling support 40, respectively. A spring support protrusion (not shown) is provided at the bottom of the cover 14 of 10), and a spring support protrusion 24a is provided at the top of the cover 24 of the lower base 20.

In addition, springs (18) (28) and (36) are installed between the spring support protrusions to provide elastic resilience.

According to the apparatus of the present invention having such a configuration, the cooling water injected at high pressure for cooling the work roll and the backup roll during rolling is the upper coupling support 30 and the lower coupling installed on the upper and lower bases 10 and 20. Blocking by the coupling support 40 prevents the cooling water from penetrating into the work roll drive connection.

In addition, the upper coupling support 30 and the lower coupling support 40 are respectively installed on the upper and lower bases 10 and 20 so as to be movable up and down so as not to interfere with the adjustment of the rolling thickness and the like. In particular, the elastic member 50 provided between the upper coupling support 30 and the lower coupling support 40 is directed toward the work roll drive connection portion between the coupling support 30 and 40. Shut off the passage of cooling water.

As described above, according to the work roll drive connection part foreign matter penetration prevention device of the rolling equipment according to the present invention, the work roll during rolling by blocking the outside of the work roll support choke by the upper, lower base and upper, lower coupling support And high pressure cooling water sprayed onto the backup roll prevents penetration into the work roll drive connection.

In addition, the elastic member provided between the upper and lower coupling support blocks the cooling water more efficiently and prevents the cooling water from mixing into the grease supplied to the choke, thereby improving the efficiency of the choke and improving the life of the choke. It has an excellent effect of raising.

In addition, the use of an appropriate amount of grease also has the effect of preventing environmental pollution.

Claims (6)

Apparatus for preventing foreign matter from penetrating into the work roll drive connecting portion which is a part for transmitting the driving force to the work roll of the rolling equipment, Upper and lower bases fixed to the frame of the rolling mill and disposed at positions where upper and lower work roll couplings are located; Upper and lower coupling supports mounted on the upper and lower bases to be movable up and down and rotatably supported by a work roll coupling; And The foreign matter penetration prevention device of the work roll drive connection portion of the rolling equipment comprising an elastic member mounted to block between the upper, lower coupling support and stretch in the vertical direction. The work piece of claim 1, wherein a groove is formed in the upper and lower bases so that portions facing each other pass through the upper and lower bases, and the upper and lower coupling supports are respectively mounted to the grooves so as to be movable upward and downward. Roll drive connection to prevent foreign material from entering. The upper and lower support plates of claim 1 or 2, wherein the upper and lower coupling supports have semi-circular grooves formed at portions facing each other, and the idle rolls are rotatably mounted at regular intervals along the circumferential direction of the grooves. Foreign material penetration prevention device of the work roll drive connection of the rolling equipment, characterized in that consisting of. 3. A spring according to claim 1 or 2, wherein a spring provides elastic repulsion between the upper and lower coupling supports, between the upper base and upper coupling supports and between the lower base and lower coupling supports. Foreign material penetration prevention device of the work roll drive connection of the rolling equipment, characterized in that installed. The apparatus of claim 1, wherein a cover is mounted on upper and lower portions of the upper and lower bases, respectively. The apparatus of claim 5, wherein a foreign material discharge pipe for discharging foreign matters is installed in the cover of the lower base. 7.

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