JP2002173289A - Lifting gear of roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a lifting gear of a roll and to improve roll exchange work performance. SOLUTION: The lifting gear of the roll is furnished with a suspending device 3 to suspend both end parts of the roll 2 installing a chock 1 on it and a revolving device 4 to revolve the chock 1 of the suspended roll 2. The suspending device 3 has a hanging beam 7 to be horizontally suspended by a hook 6 of a crane 5 and a hanging means 8 to suspend the both end parts of the roll 2 installed on the hanging beam 7. The revolving device 4 has an elevating member 9 installed on the hanging beam 7 free to move in the vertical direction and a rotating mechanism 10 to revolve the chock 1 by being engaged with the chock 1 free to connect and disconnect as well as provided on the elevating member 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device for suspending both ends of a rolling roll with a chock (bearing box) mounted.

[0002]

2. Description of the Related Art In a rolling mill, when a roll is worn or the like, the roll is removed from a stand and polished by a grinder or the like. In such rework, the rolling roll is held by a lifting device mounted on a crane or the like, removed from the stand with the chock mounted, transported to the grinding machine, and mounted on the grinding machine. When mounting on the grinding machine, the orientation must be changed so that the chock does not interfere with the grinding machine.

[0003] Conventionally, to change the direction of the chock, the outer shape of the chock was grasped by a large rotating electric suspender, and the chock was rotated. Alternatively, only the holding of the chock is performed on the hanging tool side, and the rotation of the chock is performed using a device placed on the ground.

[0004]

In the conventional method of rotating the chock while holding the outer shape of the electric chock, the hanging tool itself becomes large, and a large space for the hanging tool is required on the grinding machine side. was there. In addition, not all rolls are ground with chocks, and in the case without chocks, there is a problem that it takes time and effort to reduce the operation rate because the rotary electric hanging tool is removed and the wire is hung. .

When the rotating device is placed on the ground, the hanging tool itself becomes simple, but an operator is required separately from the crane. Also, since the installation space on the ground is occupied, the storage space for rolls and the like is reduced. There was a problem that would. In addition, in the case of placing on the ground, it is necessary to carry out the work of putting on and off the rotating device, and it takes a long time to work. SUMMARY OF THE INVENTION It is an object of the present invention to provide a rolling roll lifting device that solves the above-mentioned problems.

[0006]

Means for Solving the Problems In order to achieve the above object, the present invention takes the following measures. That is, the feature of the present invention is that a hanging device for hanging both ends of a rolling roll to which a chock is attached and a rotating device for rotating a chock of the suspended rolling roll are provided. It is in. The suspension device has a suspension beam suspended by a crane, and suspension means attached to the suspension beam for suspending both ends of the rolling roll. It is preferable to have an elevating member mounted on the beam so as to be movable up and down, and a rotation mechanism provided on the elevating member to removably engage with the chock and rotate the chock.

[0007] It is preferable that the elevating member is provided so as to be movable in the left-right direction with respect to the suspension beam, and the rotating mechanism is configured to be detachable from the chock by moving the elevating member in the left-right direction. The rotation mechanism has an arcuate sector gear that rotates about the axis of the suspended roll, and an engagement pin having an axis in the left-right direction is provided on the sector gear. It is preferable that the pin is configured to removably engage with an engagement hole provided in the chock.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIGS. 1 to 3, the lifting device of the present invention comprises a suspension device 3 for suspending both ends of a rolling roll 2 with a chock 1 mounted thereon, and a chock 1 of the suspended rolling roll 2 being rotated. And a rotation device 4 for causing the rotation. The hanging device 3 includes a hanging beam 7 that is hung horizontally by a hook 6 of a crane 5,
And a suspending means 8 attached to the suspending beam 7 for suspending both ends of the rolling roll 2. The turning device 4 is provided with an elevating member 9 mounted on the suspension beam 7 so as to be vertically movable, and is provided on the elevating member 9 to detachably engage with the chock 1 to turn the chock 1. And a rotation mechanism 10 for causing the rotation.

The hanging beam 7 is vertically separated from each other, and is a strip-shaped upper surface member 1 arranged horizontally in the left-right direction in parallel with each other.
1 and a lower surface member 12, and a hollow beam composed of a front side member 13 and a rear side member 14 which are arranged in parallel to each other at a distance from each other and connect the upper and lower surface members 11, 12 to each other. The front end and the rear end of the upper and lower panels 11, 12 protrude more outward than the front and rear panels 13, 14. A front plate 15 is fixed to the front edges of the upper and lower panels 11 and 12. A pair of upper and lower rails 16 are disposed on the front surface of the front plate 15 in the left-right direction. The rear side plate 14
Is provided with a balance weight 17 (see FIG. 3). The balance weight 17 is provided so as to be adjustable in position, and its position is adjusted by the rolling roller 2 to be hung, so that the hung beam 7 is hung horizontally.

On the upper surface of the central part of the hanging beam 7, a hooking part 18 hung by the hook 6 of the crane 5 is provided.
Is provided. The hook 6 of the crane 5 is hooked on the hook portion 18, and the suspension beam 7 is suspended and held while keeping the horizontal state. The suspension means 8 is provided at both left and right ends of the suspension beam 7. The hanging means 8 has a moving body 19 supported by the hanging beam 7 so as to be movable in the left-right direction, and a hook 20 pivotally supported by the moving body 19.

That is, at both ends of the hanging beam 7, slits 21 penetrating vertically are provided in the upper surface member 11 and the lower surface member 12 over a predetermined length in the left-right direction (see FIG. 3). Sliding rails 22 are laid on the upper surface on both the front and rear sides of the slit 21 of the upper surface member 11. Guide rails 23 are laid on the lower surface on both the front and rear sides of the slit 21 of the upper surface member 11. The moving body 19 is housed in the slit 21. This moving body 19 is an upper member 2
4 and a vertical member 25 are formed in a substantially T-shape. The lower surfaces of both ends of the T-shaped upper member 24 are in sliding contact with the slide rail 22. A pair of front and rear guide rollers 26 are pivotally supported on the upper part of the T-shaped vertical member 25, and the guide rollers 26 are guided by the guide rails 23, and
9 is guided in the left-right direction. The hook 20 is pivotally supported below the vertical member 25. Both ends of the rolling roll 2 are suspended and held on the hooks 20 via wires 27.

The vertical member 25 of the moving body 19 has a first
A nut 28 is fixed, and the first feed screw 2
9 is screwed. The feed screw 29 is disposed so as to have a horizontal axis in the left-right direction, and is coupled to a reduction gear 30 fixed to both ends of the suspension beam 7. A motor 31 is connected to the speed reducer 30. By the forward / reverse rotation of the motor 31, the feed screw 29 is rotated forward / reverse via the speed reducer 30, and the moving body 19 is moved independently from the position shown by the dotted line to the position shown by the solid line in FIG. Or synchronously. It should be noted that a position detecting device (not shown) is provided so that the positioning of the moving body 19 can be automatically controlled on the crane 5 side.

The rotating device 4 includes an elevating member 9 mounted on the suspension beam 7 so as to be movable up and down, and is provided on the elevating member 9 and detachably engages with the chock 1 to detachably engage the chock 1. And a rotation mechanism 10 for rotating the. The elevating member 9 is provided so as to be movable in the left-right direction with respect to the suspension beam 7, and the rotating mechanism 10 is configured to be detachable from the chock 1 by the lateral movement of the elevating member 9. . That is, a pair of left and right saddles 32 is provided on the rail 16 of the front plate 15 of the suspension beam 7 so as to be movable in the left and right directions. A second nut 33 is provided on the rear surface of each saddle 32, and a second feed screw 34 is screwed to the nut 33. A pair of feed screws 34 are provided on the front side of the front plate 15 so as to have a horizontal axis in the left-right direction. The feed screw 34 is connected to a motor 35 with a speed reducer. This motor 35
Are provided at both left and right ends of the front plate 15. The pair of left and right saddles 32 are configured to move independently or synchronously in the left and right direction by the forward and reverse rotation of the motor. A position detecting device (not shown) is provided so that the crane 5 can automatically control the positioning of the saddle 32.

The elevating member 9 is provided on each saddle 32 so as to be vertically movable. That is, the saddle 32
A third nut 36 is provided on the front surface of the nut, and a third feed screw 37 is screwed to the nut 36. This feed screw 37
The lifting member 9 is rotatably disposed so as to have a vertical axis. The feed screw 37 is connected to a motor 38 with a speed reducer provided on the elevating member 9. As shown in FIG. 2, by the rotation of the motor 38,
The elevating member 9 moves from the lower position in FIG. 1 to the upper position in FIG. 2 and can be held at the standby position. A position detecting device (not shown) is provided so that the crane 5 can automatically control the positioning of the elevating member 9.

The rotating mechanism 1 is provided at the lower end of the elevating member 9.
0 is provided. The rotation mechanism 10 has an arcuate sector gear 39 that rotates about the axis of the suspended roll 2, and the sector gear 39 is provided with an engagement pin 40 having an axis in the left-right direction. And the engagement pin 4
0 is configured to removably engage with an engagement hole 41 provided in the chock 1. 1 and 3,
As shown in FIG. 4, an arm 42 is provided at the lower end of the elevating member 9 so as to protrude rearward, and the arm 42 is provided with a motor 43 with a speed reducer. A pinion 44 is provided on the output shaft of the motor 43.

A bracket 45 is fixed to an end of the arm 42, and the bracket 45 is provided with four rollers 46 vertically and vertically. The arc-shaped sector gear 39 is provided so as to be guided by the rollers 46. The teeth of the sector gear 39 and the pinion 44 mesh with each other. A bracket 48 is fixed to an end of the sector gear 39 via a block 47, and the engagement pin 40 is provided on the bracket 48 so as to have a horizontal horizontal axis. The free end of the engagement pin 40 is outward in the left-right direction.

The forward and reverse rotation of the motor 43 causes the sector gear 39 to rotate, and the chocks 1 through the engagement pins 40.
Is configured to rotate. The rotation angle of the chock is detected by a detector (not shown),
Can be changed by a predetermined angle. The engagement hole 41 is also formed on the end face of the chock 1 so as to have a horizontal axis in the left-right direction. Reference numeral 49 in FIG.
Is an insertion plug of the power supply device provided on the crane side, and reference numeral 50 is an insertion plug provided on the suspension beam 7 side. By connecting both plugs 49 and 50,
Power is supplied to each of the motors 31, 35, 38, 43 and the like. In addition, the connection between the device such as the detection device and the control device on the crane side is also performed via the plugs 49 and 50, and the operation of each member can be controlled.

According to the embodiment of the above configuration, first, FIG.
As shown in the figure, the wire 27 is hooked on the hook 20 of the suspension device 3 while the lifting member 9 is in the upper standby position, and the wire 27 is put on both ends of the
Hanging. Then, as shown in FIG. 1, the elevating member 9 is lowered, and then moved outward in the left-right direction to engage the engaging pin 40 with the engaging hole 41 of the chock 1. Then, as shown in FIG. 4, the sector gear 39 is rotated to change the direction of the chocks 1 by 90 degrees. As described above, by changing the direction of the chock 1, interference between the chock 1 and the grinding machine is prevented.

When a roll having no chock is hung and held, as shown in FIG. 6, the lifting member is raised to set the sector gear in the storage position with the sector gear at the intermediate position.
use. According to the above-described embodiment, there is no major modification of a device such as a grinder or a roll placing table related to the rotation of the chock or the like. The chock can be rotated while it is standing, which can reduce handling time, improve work safety, and reduce wasteful work (such as unloading and temporary placement).

The present invention is not limited to the embodiment described above.

[0021]

According to the present invention, the position of the chocks can be changed with a simple structure, and the above-mentioned conventional problems can be solved.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a front view showing a state in which a lifting member is raised.

FIG. 3 is a sectional view showing a main part of the present invention.

FIG. 4 is an enlarged view of a main part showing details of a rotation mechanism.

FIG. 5 is an essential part cross-sectional view showing a state where the direction of the chock is changed by 90 degrees.

FIG. 6 is a sectional view of a main part showing a stored state of the rotating device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chock 2 Roll roll 3 Suspension device 4 Rotating device 5 Crane 7 Suspension beam 8 Suspension means 9 Elevating member 10 Rotating mechanism 39 Sector gear 40 Engagement pin 41 Engagement hole

 ──────────────────────────────────────────────────の Continued on the front page (72) Kuniaki Watanabe, Inventor 1 Kanazawa-cho, Kakogawa City, Hyogo Prefecture Inside the Kobe Steel Works Kakogawa Works (72) Inventor Fumihide Nozaki 1 Kanazawacho, Kakogawa City, Hyogo Prefecture Kobe Corporation 3F004 AH01 EA08 KA05 F term in the steelworks Kakogawa Works (reference)

Claims (4)

[Claims] 1. A rolling roll, comprising: a suspending device for suspending both ends of a rolling roll on which a chock is mounted; and a rotating device for rotating the chocks of the suspended rolling roll. Lifting equipment. 2. The suspension device according to claim 1, further comprising: a suspension beam suspended by a crane; and suspension means mounted on the suspension beam to suspend both ends of the rolling roll. The apparatus includes an elevating member mounted on the suspension beam so as to be movable up and down, and a rotation mechanism provided on the elevating member to removably engage with the chock and rotate the chock. The rolling roll lifting device according to claim 1, wherein 3. The lifting member is provided so as to be movable in the left-right direction with respect to the suspension beam, and the rotating mechanism is configured to be detachable from the chock by the left-right movement of the lifting member. The apparatus for lifting a rolling roll according to claim 2. 4. The rotating mechanism has an arcuate sector gear that rotates about an axis of a suspended roll, and an engagement pin having an axis in the left-right direction is provided on the sector gear. The lifting device for a rolling roll according to claim 3, wherein the engaging pin is configured to be detachably engaged with an engaging hole provided in the chock.