JP4494598B2 - Roll rotating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roll rotation device, and more particularly to a roll rotation device that is suitably used when performing surface inspection of a work roll for rolling.
[0002]
[Prior art]
Conventionally, a roll, for example, a work roll of a temper rolling mill, is prepared in a temper rolling mill by cleaning the surface of the roll before use and conducting a visual inspection of surface defects. The maintenance of the roll surface is an operation of wiping off dust, dust, etc. on the roll surface. This roll surface care and inspection work is performed by one or two persons in a state where the roll equipped with the chock is mounted on the mounting table.
[0003]
When working alone, insert a rod into the joint of the roll, rotate the roll manually to the desired angle, stop the roll to perform maintenance and inspection of the roll surface, and then manually rotate the roll again. It is necessary to turn and repeat the same operation. Therefore, there is a problem that the work takes a long time and the efficiency is very bad. When the above work is performed by two people, one person manually rotates the work roll, and the other person cares and inspects the surface of the roll, so that there is a problem in that work efficiency is improved but manpower is required.
[0004]
[Problems to be solved by the invention]
In order to solve the above-described problems and perform the maintenance and inspection work of the roll surface by one person efficiently, it is effective to mechanize the rotation work of the roll. However, a roll rotating device that reliably rotates the roll placed on the mounting table with a simple configuration has not been realized so far, and none has been disclosed as prior art.
[0005]
An object of the present invention is to provide a roll rotating device that can reliably rotate a roll with a simple configuration and can perform maintenance and inspection work on the roll surface by one person efficiently. is there.
[0006]
[Means for Solving the Problems]
The present invention is a roll rotating device for rotating a roll having a substantially horizontal axis, which is rotatably supported by a chock including a bearing, around the axis, and is detachably provided on the chock. a drive source for generating a torque for rotationally driving, and connects the drive source and the rolls, viewed including the torque transmitting means for transmitting the torque of the driving source to the roll, the upper part of the chock, the drive source A roll rotation device characterized in that a supporting member to be supported is detachably provided .
[0007]
According to the present invention, the chock is provided with a drive source, and the torque of the drive source is transmitted to the roll via the torque transmission means, so that the roll can be rotated without manual intervention. As a result, it is possible for one person to quickly clean and inspect the roll surface, and to save labor, improve work efficiency, and reduce the work load. Moreover, since the support member which supports a drive source is provided in the upper part of a chock so that attachment or detachment is possible, the position of the roll of a drive source in the axial direction can be adjusted easily. This makes it possible to easily mesh the first gear provided on the output shaft of the drive source and the second gear provided on the joint portion of the roll. Further, since the support member is detachably provided, the support member can be commonly applied to the plurality of rolls and chock.
[0008]
Further, in the present invention, the roll is connected to the substantially straight cylindrical body, the neck part extending to both ends of the body part, extending outward in the axial direction of the roll, and connected to the neck part, respectively. And a joint portion extending to
The chock is attached to the neck of the roll, and the joint part of the roll protrudes outward in the axial direction of the roll from the chock.
The drive source has an output shaft extending so as to protrude outward in the axial direction of the roll from the chock, and the output shaft has an axis substantially parallel to the axis of the roll in a vertical plane including the axis of the roll,
The torque transmission means includes
A first gear provided on the output shaft of the drive source and rotating together with the output shaft around an axis of the output shaft;
And a second gear that is detachably provided on the joint portion of the roll and rotates with the roll around the axis of the roll while meshing with the first gear.
[0009]
According to the present invention, the first gear provided on the output shaft of the drive source and the second gear provided on the joint portion of the roll are configured to mesh with each other. Torque can be transmitted to the roll.
[0012]
According to the present invention, the support member is provided with magnet means. According to the present invention, since the magnet means is provided on the support member, the support member can be securely and detachably connected to the chock with a simple configuration.
[0013]
In the invention, it is preferable that the second gear is provided with a positioning member for determining the axial position of the roll of the second gear.
[0014]
According to the present invention, since the positioning member for determining the axial position of the roll of the second gear is provided in the second gear, the second gear can be reliably arranged at a predetermined position. Accordingly, the first gear and the second gear can be easily meshed, and the torque of the drive source can be reliably transmitted to the roll.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view showing a simplified configuration of a roll rotating device 1 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along section line II-II in FIG. A roll rotating device 1 (hereinafter abbreviated as “rotating device 1”) rotates a roll 3 having a substantially horizontal axis 4 around the axis 4. For example, a roll 3 that is a work roll of a temper rolling mill is rotatably supported by a chock 5, and the chock 5 is mounted on a mounting table 7. In the present embodiment, the rotating device 1 is detachably provided only near one end of the roll 3. In FIG. 1, only one chock 5 and the mounting table 7 are shown, and the other chock 5 and the mounting table 7 are omitted. The operator performs care and inspection work on the surface of the roll while rotating the roll 3 by the rotating device 1 before changing the roll.
[0016]
The roll 3 includes a body portion 9, a pair of neck portions 10, and a pair of joint portions 11. The trunk | drum 9 is a part which contacts the material which should be temper-rolled, and has a substantially right cylindrical shape. The neck portion 10 is connected to both end portions of the body portion 9 and extends outward in the direction of the axis 4. The cross-sectional shape perpendicular to the axis 4 of the neck portion 10 is a circle. The joint portion 11 is connected to each neck portion 10 and extends outward in the direction of the axis 4. The joint portion 11 is detachably connected to a spindle that transmits torque of the temper rolling mill electric motor. The cross-sectional shape perpendicular to the axis 4 of the joint portion 11 is substantially oval as shown in FIG.
[0017]
The chock 5 is provided at each neck portion 10 of the roll 3, and supports the roll 3 so as to be rotatable around the axis 4 by a bearing included therein. A flat surface 15 extending substantially parallel to the horizontal plane is formed on the upper portion of the chock 5. The joint portion 11 of the roll 3 protrudes outward in the direction of the axis 4 from the chock 5.
[0018]
The rotating device 1 includes an electric motor 18 that is a drive source, a support member 19, torque transmission means 20, and a positioning member 21. The electric motor 18 is fixed to the upper surface of the support member 19 and generates torque for rotationally driving the roll 3. The support member 19 is a flat member and is mounted on the flat surface 15 on the upper portion of the chock 5. The support member 19 is provided with an electromagnet 23 which is a magnet means. The electromagnet 23 is magnetized when energized to fix the support member 19 to the chock 5, and de-energized when energization is stopped to release the connection between the support member 19 and the chock 5. Therefore, the electric motor 18 is detachably provided on the chock 5 via the support member 19. The magnet means may be a permanent magnet piece. The electric motor 18 has an output shaft 24. The axis 25 of the output shaft 24 exists in the vertical plane 26 including the axis 4 of the roll 3 and is substantially parallel to the axis 4 of the roll 3.
[0019]
The torque transmission means 20 includes a first gear 28 and a second gear 29. The first gear 28 is provided coaxially at the free end portion of the output shaft 24 of the electric motor 18 and rotates together with the output shaft 24 about the axis 25. Involute spur gear teeth are formed on the outer peripheral surface of the first gear 28, and a center hole is formed around the axis of the first gear 28. The output shaft 24 is fitted in the center hole, and the output shaft 24 and the first gear 28 are fixed by a key. The second gear 29 is provided coaxially with the joint portion 11 of the roll 3, meshes with the first gear 28, and rotates together with the roll 3 around the axis of the roll 3. The outer diameter of the second gear 29 is set to be larger than the outer diameter of the first gear 28. Therefore, the rotation speed of the roll 3 is reduced more than the rotation speed of the electric motor 18. The rotation speed of the roll 3 is set to a low speed, for example, 2 to 5 rpm. Thus, the roll surface can be sufficiently maintained and inspected. Further, the tooth width B1 of the first gear 28 is set to be larger than the tooth width B2 of the second gear 29.
[0020]
Involute spur gear teeth are formed on the outer peripheral surface of the second gear 29, and an insertion hole 30 is formed around the axis of the second gear 29. The cross-sectional shape perpendicular to the axis 4 of the insertion hole 30 is the same oval shape as the cross-sectional shape perpendicular to the axis 4 of the joint part 11 of the roll 3, and the dimension of the insertion hole 30 is larger than the dimension of the outer peripheral surface of the joint part 11. It is set to be slightly larger. Therefore, the operator can detachably attach the second gear 29 to the joint portion 11 of the roll 3.
[0021]
FIG. 3 is a perspective view showing a simplified configuration of the positioning member 21 shown in FIG. As shown in FIGS. 1 and 3, the positioning member 21 is connected to the one end face 31 on the outer side in the direction of the axis 4 of the second gear 29, and is attached to the joint portion 11 of the roll 3 together with the second gear 29. The axis of the positioning member 21 and the axis 4 of the roll 3 are common. The positioning member 21 includes a cylindrical portion 33 and an inward flange portion 34. The cylindrical portion 33 is a cylindrical body that is coaxial with the axis 4 of the roll 3, and a base end portion of the cylindrical portion 33 is connected to one end surface 31 of the second gear 29. The cross-sectional shape perpendicular to the axis 4 of the inner peripheral surface of the cylindrical portion 33 is an oval shape similar to the insertion hole 30 of the second gear 29, and the dimensions thereof are the same as those of the insertion hole 30. Slightly larger than the dimensions. Therefore, the cylindrical portion 33 and the second gear 29 can be externally fitted to the joint portion 11 of the roll 3. The cylindrical portion 33 and the second gear 29 may be connected by welding or may be connected by another joining method.
[0022]
The inward flange portion 34 is an annular body that is continuous with the free end portion of the cylindrical portion 33 and borders the periphery of the free end portion, and is formed to protrude inward from the free end portion of the cylindrical portion 33. The inward flange portion 34 exists in a plane perpendicular to the axis 4 at the free end portion of the cylindrical portion 33. Accordingly, when the second gear 29 and the positioning member 21 are attached to the joint portion 11 of the roll 3 by moving in the direction of the arrow 35, the second gear 29 is connected to the inward flange portion 34 and the joint portion 11 of the roll 3. It is positioned at a position where it contacts the end surface 11a. The support member 19, the electric motor 18, the first gear 28, the second gear 29, and the positioning member 21 are small and lightweight. Therefore, these can be easily attached and detached.
[0023]
FIG. 4 is a flowchart for explaining the attaching / detaching method and the operating method of the rotating device 1. In step a1, preparation is performed and the roll 3 on which the chock 5 is mounted is placed on the placing table 7.
[0024]
In step a2, the second gear 29 is positioned. For this positioning, the second gear 29 and the positioning member 21 that are integrally connected are mounted on one joint portion 11 of the roll 3, and the inward flange portion 34 of the positioning member 21 and the joint portion 11 of the roll 3 are connected. This is done by pushing in until the one end surface 11a comes into contact. Thus, the second gear 29 is positioned at an inner position in the direction of the axis 4 by the length of the cylindrical portion 33 of the positioning member 21 from the one end surface 11 a of the joint portion 11 of the roll 3.
[0025]
In step a3, the first gear 28 is positioned. This positioning is performed by placing the support member 19 on the chock 5 and adjusting the position of the support member 19 in the direction of the axis 4 so that the first gear 28 connected to the support member 19 is engaged with the second gear 29. This is done by magnetizing the electromagnet 23 and fixing the support member 19 and the chock 5.
[0026]
Thus, since the position of the first gear 28 in the direction of the axis 4 can be adjusted by adjusting the position of the support member 19, the first and second gears 28 and 29 can be easily meshed with each other. Further, even when the distance between the chock 5 and the second gear 29 in the direction of the axis 4 is long, the first and second gears 28 and 29 can be easily made by projecting the support member 19 outward from the chock 5 in the direction of the axis 4. Can be meshed. Therefore, by providing the support member 19, the position adjustment range of the first gear 28 in the direction of the axis 4 can be expanded.
[0027]
In step a4, the rotation device 1 is operated and the roll surface is cared for and inspected. In these processes, the power is turned on to drive the electric motor 18, the torque of the electric motor 18 is transmitted to the roll 3 via the first gear 28 and the second gear 29, and the roll surface is maintained while rotating the roll 3. And by performing an inspection.
[0028]
This frees the operator from the manual rotation of the roll 3, so that the roll surface can be maintained and inspected efficiently. Further, although the second gear 29 and the positioning member 21 are attached to the joint portion 11 of the roll 3 but are not fixed to the roll 3, the second gear 29 and the positioning member 21 may be shifted in the direction opposite to the arrow 35 during the rotation of the roll 3. . However, since the rotational speed of the roll 3 is extremely low as described above, the magnitude of the deviation is very small and remains within the tooth width B1, and there is no possibility that the first and second gears 28 and 29 are disengaged. As described above, the reason why the tooth width B1 of the first gear 28 is set to be larger than the tooth width B2 of the second gear 29 is that the first and second gears 28 and 29 are disengaged. This is to prevent the occurrence of defects.
[0029]
In step a5, the rotating device 1 is removed. This process is performed by stopping the driving of the electric motor 18 after the completion of the roll surface care and inspection work and removing the rotating device 1 from the roll 3 and the chock 5 in the reverse order.
[0030]
Thus, in this embodiment, since the roll 3 can be reliably rotated at a low speed with a simple configuration, it is possible to carry out the maintenance and inspection work on the roll surface by one person efficiently. Become. Therefore, it is possible to achieve both labor saving, improvement of work efficiency, and reduction of work load. Further, since the rotating device 1 is detachable, the rotating device 1 can be commonly applied to a plurality of rolls 3 and chock 5 having suitable dimensions. Therefore, the number of rotating devices 1 can be reduced.
[0031]
As described above, in the present embodiment, although there is no means for preventing displacement during rotation of the second gear 29 and the positioning member 21, the positioning member 21 can be detachably attached to the joint portion 11 of the roll 3. It may be configured to be coupled to prevent deviation. In this case, the tooth widths of the first and second gears 28 and 29 are set to be the same. Further, although the electric motor 18 is used as a drive source, an air motor may be used. Further, although the first and second gears 28 and 29 are used as the torque transmitting means, a roller chain and a sprocket may be used in combination instead, and a V pulley and a V belt are used in combination. Alternatively, a pulley and a timing belt may be used in combination.
[0032]
Further, although the electric motor 18 is attached to the chock 5 via the support member 19, the electric motor 18 may be directly attached to the chock 5 without using the support member 19. Further, although the support member 19 is provided with magnet means such as an electromagnet, the support member 19 and the chock 5 may be connected by means other than the magnet means. Although the positioning member 21 is provided in the second gear 29, the positioning of the second gear 29 may be performed by another configuration without providing the positioning member 21 in the second gear 29. The rotating device 1 is configured to be provided on one chock 5 and the joint portion 11, but may be configured to be provided on one and the other chock 5 and the joint portion 11.
[0033]
【The invention's effect】
As described above, according to the first aspect of the present invention, the chock is provided with the drive source, and the torque of the drive source is transmitted to the roll through the torque transmission means, so that the roll is rotated regardless of human power. be able to. This makes it possible for one person to quickly clean and inspect the roll surface and to save labor, improve work efficiency, and reduce the work load. Moreover, since the support member which supports a drive source is provided in the upper part of a chock so that attachment or detachment is possible, the position of the roll of a drive source in the axial direction can be adjusted easily. Further, since the support member is detachably provided, the support member can be commonly applied to the plurality of rolls and chock. Therefore, it is not necessary to provide a support member for each roll and chock, and the number of support members can be reduced. Further, since the drive source supported by the support member and the first gear provided on the output shaft of the drive source can be applied in common to a plurality of rolls and chocks, the same effect can be obtained.
[0034]
According to the second aspect of the present invention, since the first gear provided on the output shaft of the drive source and the second gear provided on the joint portion of the roll are engaged with each other, a simple structure is provided. Thus, the torque of the drive source can be reliably transmitted to the roll.
[0036]
According to the third aspect of the present invention, since the magnet means is provided on the support member, the support member can be securely and detachably connected to the chock with a simple configuration.
[0037]
According to the fourth aspect of the present invention, since the positioning member for determining the axial position of the roll of the second gear is provided on the second gear, the second gear can be reliably arranged at a predetermined position. Accordingly, the first gear and the second gear can be easily meshed, and the torque of the drive source can be reliably transmitted to the roll.
[Brief description of the drawings]
FIG. 1 is a front view showing a simplified configuration of a roll rotating device 1 according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along section line II-II in FIG.
3 is a perspective view showing a simplified configuration of a positioning member 21 shown in FIG. 1. FIG.
FIG. 4 is a flowchart for explaining a method for attaching and detaching the rotating device 1 and an operation method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roll rotation apparatus 3 Roll 5 Chock 7 Mounting base 11 Joint part 15 Flat surface 18 Electric motor 19 Support member 20 Torque transmission means 21 Positioning member 23 Electromagnet 24 Output shaft 28 First gear 29 Second gear

Claims (4)

A roll rotation device that rotates a roll having a substantially horizontal axis and rotatably supported by a chock including a bearing around the axis, and is provided detachably on the chock so as to drive the roll. a drive source for generating a torque, by connecting the drive source and the rolls, viewed including the torque transmitting means for transmitting the torque of the driving source to the roll, the upper part of the chocks, support members for supporting the drive source A roll rotating device, characterized in that is provided detachably .   The roll is connected to a substantially straight cylindrical body, both ends of the body, a neck that extends outward in the axial direction of the roll, and a joint that is connected to the neck and extends outward in the axial direction of the roll. The chock is mounted on the neck portion of the roll, the joint portion of the roll protrudes outward in the axial direction of the roll from the chock, and the drive source is outward in the axial direction of the roll from the chock. The output shaft has a projecting and extending output shaft, the output shaft has an axis substantially parallel to the roll axis in a vertical plane including the roll axis, and the torque transmission means is provided on the output shaft of the drive source. A first gear that rotates together with the output shaft around the axis of the output shaft, and a second gear that is detachably provided at the joint portion of the roll and rotates with the roll around the axis of the roll. Including Roll rotating apparatus according to claim 1, wherein a. The support member may roll rotating apparatus according to claim 1 or 2, characterized in that the magnet means are provided. Wherein the second gear, the roll of the rotation device according to claim 2 or 3, characterized in that a positioning member for determining the axial position of the roll of the second gear is provided.

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