KR100762441B1 - A Chock clamping device for roll - Google Patents

Abstract

The present invention relates to an apparatus for fixing the rolling roll (110) to the choke (100), having a wedge-shaped cross section along the inner circumferential surface of the ring carrier (10) interposed between the choke (100) and the rolling roll (110). The locking jaw 11 is formed, and the locking grooves 20 are formed at the outer circumferential edges of the rolling roll 110, and one end outer circumference of the adjust nut 30 fitted to both ends of the rolling roll 110 is formed. A plurality of steel ball receiving grooves 31 are formed in the steel ball receiving grooves 31, the steel balls 32 having a diameter larger than the diameter of the receiving groove is accommodated, respectively, to secure the steel balls 32 with a play Retainer 33 is characterized in that is fixed to the steel ball receiving groove (31).

Rolled rolls, chokes, clamps, adjust nuts, steel balls.

Description

A chock clamping device for roll}

1 is a perspective view showing a conventional roll roll choke fixing device.

2 is a cross-sectional view of the fixing device shown in FIG.

Figure 3 is a perspective view of the adjust nut of one embodiment of the rolling roll choke fixing device according to the present invention.

4 is a cross-sectional view of the embodiment shown in FIG.

FIG. 5 is a partially enlarged view of the portion indicated in FIG. 4. FIG.

[Explanation of symbols for the main parts of the drawings]

10... Ring carrier, 11... Jaw,

20... Latching groove, 30. Adjust Nut,

31. Steel ball receiving groove, 32. Steel,

33. Retainer, 100... Choke,

110. Rolling roll, 111... Clamp groove,

112. Clamp, 113.. Fixing Bolt,

115. bearing,

The present invention relates to an apparatus for fixing a rolling roll to a choke, and more particularly, to an apparatus for fixing a rolling roll to a choke rotatably supporting a rolling roll.

In general, the rolling roll is supported by inserting both ends into the choke bearing bearing therein, and a separate fixing device is required to fix the rolling roll without moving in the choke.

Referring to FIG. 1, a conventional rolling roll 110 fixing device is illustrated. The rolling roll 110 is supported with both ends having a diameter smaller than a central portion inserted into holes formed in the choke 100. In addition, the adjust nut 120 is fitted to an end portion of the rolling roll 110 protruding from the choke 100, and the clamp 112 is fixed to the clamp groove 111 formed on the rolling roll 110 at the outermost portion. It is supposed to be.

Referring to FIG. 2, in the drawing, a bearing 115 is installed in the right side of the choke 100 to smoothly rotate the rolling roll 110, and a ring carrier 101 is positioned at the side of the bearing 115. do. The ring carrier 101 is for adjusting the flow interval of the bearing 115, and is controlled by the adjust nut 120 to control the flow of the bearing 115 in the axial direction during rolling.

When the rolling roll 110 is fixed to the choke 100, first, the bearing 115 is assembled to the choke 100, and then the rolling roll 110 is inserted into the choke 100. Thereafter, the adjust nut 120 and the ring carrier 101 are coupled to each other, and inserted into the choke 100 while being fitted at the end of the rolling roll 110, and then the clamp groove 111 ) And then clamped 112 to tighten the fixing bolts 113 to fix the choke 100 and the rolling roll 110. At this time, in order to fix the gap between the adjust nut 120 and the ring carrier 101, the fixing bolt 102 is fixed to the side of the ring carrier 101 through the flange of the adjust nut 120. In addition, in the reverse order of the above process, the rolling roll 110 and the choke 100 were decomposed.

However, since it is necessary to frequently disassemble and combine the rolls and chokes during the operation, it is necessary to go through the complicated process as described above, there is a problem that the productivity takes a lot of time to disassemble and assemble. In addition, since the weight of the clamp itself can not be ignored, not only the risk of a safety accident due to handling, but also the risk of damage to the device due to interference of the clamp with various devices outside the choke.

The present invention has been made to overcome the disadvantages of the prior art as described above, to provide a rolling roll choke fixing device that can be fixed to the roll roll and choke with only the existing adjust nut and ring carrier without a separate clamp device The technical problem is that.

In order to achieve the above technical problem, the present invention forms a locking jaw having a wedge-shaped cross section along an inner circumferential surface of the ring carrier interposed between the choke and the rolling roll, and forming a locking groove on both outer edges of the rolling roll. The outer periphery of one end of the adjust nut fitted to both ends of the rolling roll, a plurality of steel ball receiving groove is formed, the steel ball receiving groove is accommodated in each of the steel balls having a diameter larger than the diameter of the receiving groove, the steel ball Retainer for fixing the holding is characterized in that fixed to the steel ball receiving groove.

The steel ball is accommodated in the steel ball receiving groove formed near the end of the adjust nut, it is fixed so that the play in the vertical direction exists by the retainer. Therefore, when the adjust nut and the ring carrier are inserted in the rolling roll, the lower part of the steel ball comes into contact with the surface of the rolling roll, and in this case, the steel ball is struck down when it comes in contact with the engaging groove formed in the rolling roll. But in contact with the other side is in the raised position.

The locking step formed in the ring carrier has a wedge-shaped cross section such that the distance between the surface and the outer circumferential surface of the rolling roll gradually decreases along the outer direction of the rolling roll. The minimum value of the distance between the surface of the locking jaw and the outer circumferential surface of the rolling roll should be smaller than the diameter of the steel ball, and the maximum value is not particularly limited.

The adjust nut is coupled to the ring carrier by a screw thread formed on the outer circumferential surface, and when the adjust nut is rotated to reciprocate along the axial direction of the rolling roll, the steel ball fixed to the adjust nut is also moved together. When the movement progresses and reaches the catching jaw, the diameter of the steel ball is larger than the distance between the surface of the catching jaw and the outer circumferential surface of the rolling roll, so that it cannot move any more. The steel ball is configured to be pinched while strongly pressing the outer circumferential surface of the roll.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a rolling roll choke fixing device according to the present invention.

Referring to FIG. 3, the adjust nut 30 has a flange formed at the outermost side thereof, and a thread for engaging the ring carrier 10 is formed at the outer circumferential surface thereof. In addition, a plurality of steel ball receiving grooves 31 are drilled at one end thereof, and the diameter of the steel ball receiving grooves 31 is smaller than that of the steel balls 32. Therefore, when the steel ball 32 comes into contact with the inner wall of the steel ball receiving groove 31, a portion of the lower portion of the steel ball 32 is configured to protrude from the inner circumferential surface of the adjust nut 30.

A retainer 33 is installed around the steel ball receiving groove 31. The retainer 33 is for preventing the steel ball 32 from being separated from the steel ball receiving groove 31. In FIG. 3, a pair of retainers 33 having a shape in which the center part is bent is fixed by bolts. The distance between the top of the retainer 33 is smaller than the diameter of the steel ball 32 so that the steel ball 32 is fixed so as not to escape, but the steel ball 32 can be moved up and down to some extent between the retainer 33 and the receiving groove. Fix it.

Referring to Figure 4, the outer circumferential surface of the rolling roll 110 is formed with a locking groove 20, the shape of the groove has a rounded both ends as shown, the radius of curvature is the steel ball 32 Have a value equal to or greater than the radius. On the inner circumferential surface of the ring carrier 10 is formed a locking step 11 having a wedge shape in cross section. The distance from the surface of the adjust nut 30 to the surface of the locking jaw 11 is increased toward the right in the drawing. In addition, the axial position of the locking jaw 11 may be located at the upper part of the left end of the locking groove 20 protruding to the maximum.

Referring to Fig. 5, the operation of the above embodiment will be described.

When the rolling roll 110 and the choke 100 are combined, the adjust nut 30 and the ring carrier 10 are completely coupled, and then the rolling roll 110 is inserted. Then, the steel ball 32 is positioned near the right end of the locking groove 20 of the rolling roll 110, the rolling roll 110 is inserted into the choke (100). Thereafter, when the adjust nut 30 is turned in the opposite direction, the adjust nut 30 moves in the left direction in FIG. 5, and the steel ball 32 also moves. When the movement of the steel ball 32 continues and reaches near the left end of the locking groove 20, the steel ball 32 moves upward along the surface shape of the locking groove 20, and eventually the bottom surface of the locking groove 20. And is fixed between the surface of the locking step 11.

Thus, the steel ball 32 serves as a kind of wedge while pressing the surface of the locking jaw 11 and the locking groove 20 strongly, so that the ring carrier 10 and the rolling roll 110 mediate the steel ball 32. To be fixed to each other. Thereafter, the fixing bolt 102 is fixed to the side of the ring carrier 10 through the flange of the adjust nut 30, so that the gap between the adjust nut 30 and the ring carrier 10 does not change. Fix it.

Work in the reverse order of the above process, the rolling roll 110 and the choke 100 can be separated.

According to the present invention having the above-described configuration, the rolling roll and the choke can be combined and disassembled by simply changing the position of the adjust nut without the need for a separate clamp device. It can solve the problems of deterioration and safety that occurred in roll and choke joining operation.

Claims (1)

A locking jaw 11 having a wedge-shaped cross section is formed along the inner circumferential surface of the ring carrier 10 interposed between the choke 100 and the rolling roll 110, Forming the engaging groove 20 in the outer circumferential edge of the rolling roll 110, A plurality of steel ball receiving grooves 31 are formed at the outer circumference of one end of the adjust nut 30 fitted to both ends of the rolling roll 110, and the steel ball receiving groove 31 has a diameter larger than the diameter of the receiving groove. Steel balls 32 each having are accommodated, Roll retainer fixing device, characterized in that the retainer (33) for fixing the steel ball 32 with a clearance is fixed to the steel ball receiving groove (31).

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