JP2649758B2 - Roll roll chock rotating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for rotating a choke of a rolling roll.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. Hei 3-223091 discloses an example of a rotating device that rotates a choke of a rolling roll suspended by a rolling roll lifting device around a central axis of the rolling roll. As shown in FIG. 6, the rotating device 1 is disposed on both sides of a main body a of the lifting device that lifts and supports the rolling roll A. Each of the rotating devices 1 includes an engaging part 4 that engages with a protruding pin 3 (FIGS. 7 and 8) provided on the side surface of the chocks 2 and 2 mounted on the roll supporting shafts B and B of the rolling roll A. A first moving device 5 for moving the engaging part 4 up and down, a parallel moving link mechanism 6 for moving the engaging part 4 90 ° above the roll supporting shaft B and along a concentric circle with the roll supporting shaft B, and this mechanism 6 for operating the motor 6
and a second moving device 7 comprising: The engaging part 4 is composed of a link mechanism that holds the pin 3 with the crossing opening / closing arm,
Reference numeral 8 denotes a driving device for operating the link mechanism.

[0003] The rotating device 1 operates the driving device 8 to open the engaging component 4 and then operates the first moving device to lower the engaging component 4 and the second moving device 7 so that the pin 3 Is stopped at a position where it can be held, and then the drive mechanism 8 is operated to close the link mechanism of the engagement part 4 and hold the pin with the engagement part 4. Then, the second moving device 7 is operated, and the links 9, 9 of the parallel moving mechanism are rotated in the direction of the arrow in FIG. This parallel movement causes the engaging part 4 to move 90 ° while holding the pin 3, so that the chock 2 in the normal position is rotated 90 ° to the state shown by the two-dot chain line in FIG. 9, that is, the horizontal direction. Reference numeral 10 denotes a roll supporting arm.

[0004]

Since the above-mentioned conventional device is an engaging part comprising a link mechanism which opens and closes, the engaging part descends → stops near the position of the pin → link closing operation → pin holding. It takes a lot of operations until the engaging part is firmly engaged with the pin, and it takes time and effort.Sliding between the pin and the engaging part occurs every time the chock rotates, There are problems such as rapid wear and damage. An object of the present invention is to provide a chock rotating device having an engagement part which solves these problems.

[0005]

SUMMARY OF THE INVENTION An engaging part for engaging a pin protruding from an end face of a choke of a rolling roll, a first moving device for moving the engaging part up and down, and an engaging part engaged with the pin And a second moving device for moving the component around the roll center axis, wherein the engaging component engages with the pin of the chock placed directly in a chock rotating device mounted on a rolling roll lifting device equipped with a chock. And a key-shaped notch having two adjacent surfaces consisting of a horizontal surface and a vertical surface which open toward the pin when in the position.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

In FIGS. 1 and 2, A, B, a, 2, 3, 5
Denotes the same one as in FIG. 6, and 1A denotes the chock rotating device of the present embodiment. The chock rotating device 1A includes an engaging part 11 that engages with a pin 3 projecting obliquely above the center C of the roll support shaft B (45 °) at the end face of the choke 2 that has been placed directly; A guide component 12 having an engagement component guide groove 12a concentric with the rolling roll A and located above, a drive chain 13a for moving the engagement component 11 along the guide groove 12a, a chain drive motor 13b,
Drive mechanism 1 having guide sprocket 13c and guide sprocket 13c
3 and a second mobile device 14
And a first moving device 5 for vertically moving the.

As shown in FIGS. 3, 4, and 5, the engaging part 11 has two surfaces which become a horizontal surface 11a and a vertical surface 11b when it is at a position where it engages with the pin 3 of the chock 2 placed right. And a notch 11c opening toward the pin, and is moved to the guide part 12 by rollers 11d, 11d moving in the guide groove 12a of the guide part 12 and horizontal rolls 11e, 11e provided to sandwich the guide part. It is freely mounted and stabilizes the posture of the engaging component 11 in the guide groove 12a during the stationary and turning operations.

The drive chain 13a is also provided with a guide roller 13d (FIG. 4) so as to move stably along the guide groove 12a and to prevent a force in an unreasonable direction from being generated in the engagement part 11.

3 and 4, when the chock is in the normal position, the pin 3
a and a vertical outer surface 3b abutting on the vertical surface 11b, the angle of which is 45 degrees from the center of the roll A.
It is provided to be located in the ° direction.

The second moving device 14 and the engaging part 11 are provided with an appropriate gap 11f shown in FIG. 2 so that they do not interfere with each other during the rotation of the chocks, and are disposed on the roll body side from the top surface of the chocks on both sides (FIG. 1) The length and height of the rolling roll lifting arm 110 can be reduced.

The apparatus of this embodiment operates as follows.
That is, when the engaging component 11 is located above the pin 3, the first moving device 5 is operated, and the engaging component 11 and the second moving device 14 are operated.
Is lowered, and when the horizontal surface 11a of the engaging part 11 contacts the horizontal upper surface 3a of the pin 3, the lowering is stopped. Next, the chain drive motor 13b of the chain drive mechanism 13 is operated to drive the drive chain 13a in the direction of the arrow in FIG. 3, and the engaging component 11 is moved 90 ° along the guide groove 12a (Y in FIG. 3). Position). As a result, the pin 3 also moves 90 ° together, and the chock 2 also rotates 90 ° around the roll support shaft, and raises the second moving device 14 to complete the rotation operation.

In order to return the chock already rotated by 90 ° to 0 °, the engaging part 11 in the guide groove 12a is previously moved to the position Y in FIG. Is lowered, and the engaging part 11 and the pin 3 are engaged with each other at this position, and the chain driving mechanism 13 drives the pin in the opposite direction.

In this embodiment, the rotation and return of the chock 90 degrees to the left from the normal position are described. However, if the pin 3 is provided at the position Y in FIG. 90 ° to the right and back.

In addition, when the engaging part 11 is stopped at an arbitrary angle between the X and Y positions in FIG. Is also possible.

In this embodiment, since the engaging part is moved by the chain along the guide groove, there is an advantage that the life is longer and the movement is smoother than that of the parallel moving link mechanism.

The pin 3 can be used in a circular shape.
In this embodiment, the shape having the horizontal upper surface and the vertical outer surface is advantageous in that the abutment surfaces of the pins and the engaging parts are less worn, and the stop position of the chock is stable for a long time.

Further, by configuring the apparatus of the present invention to move in parallel with the rolling roll, the present invention can be applied to rolls having different lengths.

[0019]

In the rotating device according to the present invention, the notch having the above-mentioned shape is provided in the engaging part, and the notch portion is engaged with the pin. It is simple and has the effect of reducing both labor and time. The same effect is exerted when disengaging the two. Further, wear and damage of the contact surface between the pin and the engaging part are reduced.

[Brief description of the drawings]

FIG. 1 is an overall front view including an apparatus according to an embodiment of the present invention, a roll, a chock, and a roll arm lifting arm;

FIG. 2 is a detailed view of the left chock rotating device in FIG. 1,

FIG. 3 is a side view taken along the line III-III in FIG. 1;

FIG. 4 is an enlarged view of an engaging part,

FIG. 5 is a sectional view taken along the line VV in FIG. 4;

FIG. 6 is a front view of a conventional rotating device,

FIG. 7 is a front view showing a protruding pin provided on a chock in the conventional device;

FIG. 8 is a right side view of FIG.

FIG. 9 is an explanatory view of a state in which a pin is held and rotated by an engaging part in a conventional device.

[Explanation of symbols]

 A: Roll roll B: Roll support shaft 2: Chock 3: Pin 5: First moving device 1A: Rotating device 11: Engagement part 11a: Horizontal surface 11b: Vertical surface 11c: Notch 14: Second moving device 12: Guide Part 13: Chain drive mechanism 110: Rolling roll lifting arm.

Claims (3)

(57) [Claims] 1. An engaging part that engages with a pin protruding from an end face of a choke of a rolling roll, a first moving device that moves the engaging part up and down, and an engaging part that engages with the pin is a roll center. A second moving device for moving around a shaft, wherein the choke rotating device is mounted on a rolling roll hoisting device with a choke, wherein the engaging part is at a position where the engaging component is engaged with the pin of the chock placed directly. A choke rotating device for a rolling roll, comprising a hook-shaped notch having two adjacent surfaces, a horizontal surface and a vertical surface, which open toward the pin. 2. A guide component having an engaging component guide groove located above the chock and concentric with the rolling roll, and a chain drive mechanism for moving the engaging component along the guide groove. The choke rotating device for a rolling roll according to claim 1, comprising: 3. A pin protruding from an end surface of a choke has a horizontal upper surface and a vertical outer surface when the choc is placed in a normal direction, and the corner thereof is located at 45 ° from the center of the roll. 3. The device for rotating a choke of a rolling roll according to claim 1 or 2.