JP4323662B2 - Spindle coupling alignment device for stand-replaceable rolling mill - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spindle coupling alignment apparatus for a stand-replaceable rolling mill that aligns a roll and a spindle coupling of a stand-replaceable rolling mill used for metal rolling.
[0002]
[Prior art]
In a stand-replaceable rolling mill that manufactures steel plates, steel shapes, steel pipes, etc. by rolling, in order to transmit power to the horizontal roll or vertical roll, the roll shaft is inserted into the spindle coupling hole to connect the motor to the roll. ing. In a stand-replaceable rolling mill in which a pair of upper and lower horizontal rolls or vertical rolls are incorporated inside the housing, the roll diameter is changed when the shape and size of the material to be rolled change, so that the rolls are changed. When the rolls are rearranged, the distance between the centers of the rolls changes, so the position of the spindle coupling must be adjusted to align the roll shaft and the spindle coupling for coupling.
[0003]
FIG. 15 is a schematic diagram of a conventional spindle coupling alignment apparatus. The spindle coupling alignment apparatus includes an upper spindle support frame 2 on which the upper spindle coupling 1 is mounted and a lower spindle coupling 3 on which the lower spindle coupling 3 is mounted. A spindle support frame 4 is provided. The upper and lower spindle support frames 2 and 4 are moved up and down by a lifting mechanism including worm jacks J1 and J2 that are independently driven by motors M1 and M2. The upper spindle coupling 1 is supported by spindle supports 6a and 6b that move forward and backward by cylinders 5a and 5b.
[0004]
In order to align the upper and lower spindle couplings 1 and 3 with the upper and lower roll shafts 9a and 9b, the upper and lower spindle support frames 1 and 3 are moved up and down by the respective worm jacks J1 and J2, and the upper and lower spindle couplings are moved. This is carried out while detecting levels 1 and 3 with a position detector (not shown). After the alignment of the center axis of the spindle couplings 1 and 3 and the center axis of the roll shafts 9a and 9b is completed, the roll shafts 9a and 9b are inserted into the holes 1a and 3a of the upper and lower spindle couplings 1 and 3, respectively. And combine them. Thereafter, the lower spindle support frame 4 and the spindle supports 6a and 6b are separated from the upper and lower spindle couplings 1 and 3 so that the spindle couplings 1 and 3 can rotate.
[0005]
[Problems to be solved by the invention]
Since the conventional spindle coupling alignment device separately adjusts the level of each of the upper and lower spindle couplings, an elevation mechanism is required for each. Further, since it is necessary to detect the positions of the upper and lower spindle couplings, a position detector is also required. Therefore, the spindle coupling alignment device has become complicated.
[0006]
Accordingly, the present invention provides a spindle coupling position of a stand-replaceable rolling mill that does not require a lifting mechanism and a position detector that individually adjust the level of each of the spindle couplings by moving a pair of spindle couplings simultaneously. An alignment apparatus is provided.
[0007]
[Means for Solving the Problems]
In the aligning device for a roll shaft of a stand-replaceable rolling mill in which a pair of upper and lower horizontal rolls are incorporated in the housing of the present invention and a pair of upper and lower spindle couplings that are driving means for the horizontal roll, a pair standing upright on a base frame And a pair of oscillating members pivotally supported at both ends so that the opposite ends of each oscillating member are slidably connected to the lower spindle support frame. When the other end of the upper spindle support frame is pivotably connected to and supported by the upper pair of upper spindle support frames, and the upper spindle support frame or the lower spindle support frame comes into contact with the roll shaft by raising and lowering both spindle support frames. and wherein the alignment of the spindle coupling and the roll shaft is provided with a set spindle position setting member to complete That.
[0008]
Further, in the aligning device of the roll shaft of the stand-replaceable rolling mill in which the pair of left and right saddle rolls are incorporated in the housing of the present invention and the pair of left and right spindle couplings that are the driving means of the saddle roll, (1) a pair of両 端 Both ends can swing on the upper part of the stand lift beam placed between the roll shafts of the roll, the spindle pressing body that can be moved forward and backward to press each spindle coupling, and the pair of support members that stand on the stand lift beam. A pair of oscillating members that are pivotally supported by each other, one end of each oscillating member is pivotally connected to and supported by one spindle pressing body, and the other end is oscillated by the other spindle pressing body. is moving freely articulated, axially supported, to press the (2) and stand lift beams arranged between the roll axes of the pair of vertical rolls, each of the spindle coupling A pair of upper and lower racks having a movable spindle pressing body, a pinion that is provided on a pivot shaft supported by a pair of support members erected on the stand lift beam, and meshes with the pair of upper and lower racks, and pivots And a spindle position setting member set so that the alignment between the spindle coupling and the roll shaft is completed when the two spindle pressing bodies come into contact with the roll shaft. It is characterized by that.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Examples of the present invention will be described.
[0011]
【Example】
Example 1
The present embodiment is a spindle coupling alignment device used for a horizontal roll of a stand-replaceable rolling mill. FIG. 1 is a perspective view of the spindle coupling alignment device of the present invention, FIG. 2 is a side view thereof, and FIG. FIG. 7 is an explanatory diagram of the operation of the coupling alignment apparatus of the first embodiment.
[0012]
1, 2, and 5 (b), the spindle coupling alignment apparatus includes upper spindle support frames 2 a and 2 b that support the upper spindle coupling 1, and a lower spindle support frame 4 that supports the lower spindle coupling 3. It consists of. On both sides of the upper spindle coupling 1, spindle supports 6a and 6b that are moved forward and backward by cylinders 5a and 5b are provided to sandwich the upper spindle coupling 1.
[0013]
The lower spindle support frame 4 is configured to be movable up and down by a cylinder 7. The lower spindle support frame 4 is provided with a block-shaped spindle position setting member 8, and the spindle position setting member 8 comes into contact with the roll shaft 9 a when the lower spindle support frame 4 is raised. When the spindle position setting member 8 comes into contact with the roll shaft 9a, the level of the spindle couplings 1 and 3 and the level of the roll shafts 9a and 9b are matched so that the alignment is completed. The spindle position setting member 8 may be provided on the upper spindle support frame 2a or 2b.
[0014]
On both sides of the lower spindle support frame 4, there are disposed swing members 12a and 12b whose centers are pivotally mounted on shafts 11a and 11b of a pair of swing member supports 10a and 10b standing on the base frame. ing. Long holes are provided at both ends of each of the swinging members 12a and 12b. Shafts 14a and 14b provided at the lower portion of the lower coupling support frame 4 are pivotally attached to the long holes 13a and 13b at one end, and the other ends. The shafts 16a and 16b of the upper spindle support frames 2a and 2b are pivotally attached to the long holes 15a and 15b. When the lower spindle support frame 4 is lifted by the cylinder 7 by this swing mechanism, the swing members 12a and 12b are rotated about the shaft 11 of the swing member support 10 so that the upper spindle support frame 2 is moved. The distance between the centers decreases as the upper and lower spindle couplings 1 and 3 move toward each other. By adopting the swing mechanism, the output of the cylinder 7 is the difference between the upper and lower support frames 2, 4, so the output of the cylinder 7 can be small.
[0015]
Next, the operation of the coupling alignment apparatus of the present embodiment will be described with reference to the operation diagrams of the coupling alignment apparatus of FIGS.
[0016]
(1) In FIG.2 and FIG.3, the roll stand which carried out roll exchange is made to drive | work on a rail, and is moved ahead from the center of a rolling line. At this time, the lower spindle support frame 4 of the coupling alignment device is lowered by the cylinder 7 and the distance between the centers of the upper and lower spindle couplings 1 and 3 by the swing mechanism is the distance between the centers of the upper and lower roll shafts 9a and 9b. It is set to be larger (the swing member in FIG. 7 is the position of the solid line).
[0017]
(2) As shown in FIG. 4, when the lower spindle support frame 4 is lifted by the cylinder 7, the swing members 12a and 12b swing around the shafts 11a and 11b of the swing member supports 10a and 10b. Then, the upper spindle support frame 2 descends, and the upper and lower spindle couplings 1 and 3 move so as to approach each other, and the distance between the centers becomes shorter. When the lower spindle support frame 4 is raised and the spindle position setting member 8 is raised and hits the roll shaft 9a, the levels of the upper and lower spindle couplings 1 and 3 coincide with the levels of the roll shafts 9a and 9b, and the alignment is completed. Therefore, the driving of the cylinder 7 is stopped and the ascent of the lower spindle support frame 4 is stopped.
[0018]
(3) After the alignment is completed, the roll stand is moved to the center of the rolling line, and the roll shafts 9a and 9b are inserted into the holes 1a and 3a of the upper and lower spindle couplings 1 and 3 as shown in FIG.
[0019]
(4) As shown in FIG. 6, the spindle supports 6a and 6b are retracted and retracted by the cylinders 5a and 5b, and the lower spindle support frame 4 is lowered as shown in FIG. 3 becomes rotatable.
[0020]
In the coupling position alignment apparatus of this embodiment, the size of the cylinder can be reduced by using a swing mechanism, and the level position detector for the spindle coupling is not required by the roll position confirmation block.
[0021]
Example 2
The present embodiment is a coupling alignment device used for a saddle roll. FIG. 8 is a perspective view of the coupling alignment device of the present invention, FIG. 9A is a plan view thereof, and FIG. is there.
[0022]
8 and 9, the coupling alignment device used for the saddle roll is supported by a stand lift beam 17 disposed between the spindle couplings of the rolling mill. In the stand lift beam 17, the center of the link 20a, 20b is pivoted to the shaft 21a, 21b on each of a pair of link supports 19a, 19b fixed at positions not contacting the spindle couplings 18a, 18b. It is pivotally attached freely. The lower ends of the links 20a and 20b are connected by a rod-like spindle position setting member 22 and pivotally attached to a piston 24 of a cylinder 23 fixed to the stand lift beam 17. The spindle position setting member 22 is set so that the alignment is completed when it contacts the roll shafts 25a and 25b.
[0023]
At the upper ends of the respective links 20a and 20b, one ends of slide shafts 27a and 27b sliding on bearings 26a and 26b (not shown) provided at intervals above the stand lift beam 17 are rotatable. Spindle pressing bodies 28a and 28b that are pivotally attached and press one spindle coupling 18b are provided at the other end.
[0024]
A pair of support members 30a and 30b that rotatably support the centers of the pair of swing members 29a and 29b are provided above the stand lift beam 17 at intervals. Each of the swinging members 29a and 29b is connected to the long holes 31a and 31b provided at one end thereof in such a manner that the shafts 32a and 32b of the spindle pressing bodies 28a and 28b are rotatably connected, and the long hole 33 is provided at the other end. In addition, it is rotatably connected to a shaft of a spindle pressing body 28c that presses the other spindle coupling 18a.
[0025]
With this mechanism, when the left spindle pressing bodies 28a and 28b are pressed by the slide shafts 27a and 27b, the left spindle coupling 18b moves, and the swing members 29a and 29b rotate to rotate the right spindle pressing body 28c. Thus, the right spindle coupling 18a is pressed, and the left and right spindle couplings 18a and 18b move away from each other, and the distance between the centers becomes longer.
[0026]
Next, the operation of the coupling alignment apparatus of the present embodiment will be described with reference to FIGS.
[0027]
(1) In FIG. 9, the roll stand whose roll has been exchanged is moved on the rail and moved to the center of the rolling line. At this time, the swing members 29a and 29b are made substantially straight by the cylinders 23a and 23b so that the distance between the centers of the left and right spindle couplings 18a and 18b is smaller than the distance between the centers of the left and right roll shafts 25a and 25b. deep. Normally, when the spindle couplings 18a and 18b are hung, the distance between the centers thereof is smaller than the distance between the centers of the left and right roll shafts 25a and 25b.
[0028]
(2) As shown in FIG. 10, the spindle coupling 18a, 18b is lowered to the position just above the roll shafts 25a, 25b by the spindle lifting cylinder 34.
[0029]
(3) When the cylinders 23a and 23b are driven to rotate the swing members 29a and 29b and the slide shafts 27a and 27b are pressed, the left and right spindle pressing bodies 28a and 28b are rotated by the swing members 29a and 29b. , 28c push the left and right spindle couplings 18a, 18b, and the distance between the centers increases.
[0030]
(4) As shown in FIG. 11, when the spindle position setting member 22 hits the right roll shaft 25a by the rotation of the swing members 29a and 29b, the center axis of the left and right spindle couplings 18a and 18b and the roll shaft 25a, Since the center axes of 25b coincide with each other and the alignment is completed, the driving of the cylinders 23a and 23b is stopped, and the movement of the spindle pressing bodies 28a, 28b and 28c is stopped.
[0031]
(5) After the alignment is completed, the spindle coupling 18a, 18b is lowered by the spindle lifting cylinder 34 as shown in FIG. 12, and the roll shafts 25a, 25b are inserted into the holes 35a, 35b of the spindle coupling 18a, 18b. And combine.
[0032]
(6) As shown in FIG. 13, when the coupling between the spindle couplings 18a and 18b and the roll shafts 25a and 25b is completed, the cylinders 23a and 23b are driven to move the spindle pressing bodies 28a, 28b and 28c to the spindle coupling 18a. , 18b.
[0033]
Example 3
FIG. 14 is a perspective view of another embodiment of the coupling alignment device for the heel roll.
[0034]
The coupling alignment device is supported by a stand lift beam 17 disposed between the spindle couplings of the rolling mill. In the stand lift beam 17, the center of the link 20a, 20b is pivoted to the shaft 21a, 21b on each of a pair of link supports 19a, 19b fixed at positions not contacting the spindle couplings 18a, 18b. It is pivotally attached freely. The lower ends of the links 20a and 20b are connected by a rod-like spindle position setting member 22 and pivotally attached to pistons 24a and 24b of cylinders 23a and 23b fixed to the stand lift beam 17. . The spindle position setting member 22 is set so that the alignment is completed when it contacts the roll shaft.
[0035]
One end of each connecting member 36a, 36b is pivotally attached to the upper end of each link 20a, 20b, and swinging member 29a, 29b is rotatably provided at the other end.
[0036]
A rotation shaft 37 is fixed between the swinging members 29a and 29b, and is supported by bearings 38a and 38b provided on the upper portion of the stand lift beam 17. A pinion 39 is fixed at the center of the rotation shaft 37. On the stand lift beam 17, an upper rack 40 a and a lower rack 40 b that respectively mesh with the top and bottom of the pinion 39 are slidably supported by a support member (not shown) of the stand lift beam 17. Y-shaped spindle pressing bodies 28a and 28b for pressing the spindle couplings 18a and 18b are fixed to one end of the upper rack 40a and one end of the lower rack 40b, respectively.
[0037]
Next, the operation of the coupling alignment apparatus of this embodiment will be described.
[0038]
(1) In the same manner as in Example 2, the roll stand whose roll has been exchanged is moved on the rail and moved to the center of the rolling line. At this time, the spindle pressing bodies 28a and 28b are set so that the distance between the centers of the left and right spindle couplings 18a and 18b is smaller than the distance between the centers of the left and right roll shafts 25a and 25b.
[0039]
(2) The spindle couplings 18a and 18b are lowered to a position just above the roll shafts 25a and 25b by a spindle elevating cylinder (not shown).
[0040]
(3) When the cylinders 23a and 23b are driven to rotate the links 20a and 20b, and the connecting members 36a and 36b are pressed to rotate the swinging members 29a and 29b, the rotating shaft 37 rotates and the pinion 39 rotates. The upper and lower racks 40a and 40b rotate to move in opposite directions, and the spindle pressing bodies 28b and 28c press the left and right spindle couplings 18a and 18b, thereby increasing the distance between the centers.
[0041]
(4) When the spindle position setting member 22 hits the roll axis by the rotation of the links 20a and 20b, the center axes of the left and right spindle couplings 18a and 18b coincide with the center axis of the roll axis, and the alignment is completed. The driving of the cylinders 23a and 23b is stopped, and the movement of the spindle pressing bodies 28a and 28b is stopped.
[0042]
(5) After the alignment is completed, the spindle couplings 18a and 18b are lowered by the spindle elevating cylinder, the roll shaft is inserted into the coupling hole and coupled, and then the coupling support is separated from the spindle coupling.
[0043]
【The invention's effect】
In the present invention, since the pair of spindle couplings are moved simultaneously, there is no need to provide an elevating mechanism and a position detector for adjusting the level of each of the spindle couplings separately, and the use of a swing member reduces the size of the cylinder. It becomes possible.
[Brief description of the drawings]
FIG. 1 is a perspective view of a spindle coupling alignment apparatus of the present invention.
FIG. 2 is a schematic side view of the spindle coupling alignment apparatus of the present invention.
3 is an explanatory diagram of the operation of the coupling alignment apparatus of Embodiment 1. FIG.
4 is an explanatory diagram of the operation of the coupling alignment apparatus of Embodiment 1. FIG.
FIG. 5 is an explanatory diagram of the operation of the coupling alignment apparatus according to the first embodiment.
6 is an explanatory diagram of the operation of the coupling alignment apparatus of Embodiment 1. FIG.
7 is an explanatory diagram of the operation of the coupling alignment apparatus of Embodiment 1. FIG.
FIG. 8 is a perspective view of the coupling alignment apparatus of the present invention.
9A is a plan view of a coupling alignment apparatus of the present invention, and FIG. 9B is a side view thereof.
FIG. 10 is an explanatory diagram of the operation of the coupling alignment apparatus of the present embodiment.
FIG. 11 is an explanatory diagram of the operation of the coupling alignment apparatus of the present embodiment.
FIG. 12 is an explanatory diagram of the operation of the coupling alignment apparatus of the present embodiment.
FIG. 13 is an explanatory diagram of the operation of the coupling alignment apparatus of the present embodiment.
FIG. 14 is a perspective view of another embodiment of the scissors roll coupling alignment apparatus of the present invention.
FIG. 15 is a schematic view of a conventional spindle coupling alignment apparatus.
[Explanation of symbols]
1: upper spindle coupling, 1a: hole, 2a, 2b: upper spindle support frame, 3: lower spindle coupling, 3a: hole, 4: lower spindle support frame, 5a, 5b: cylinder, 6a, 6b: spindle support Body, 7: cylinder, 8: spindle position setting member, 9a, 9b: roll shaft, 10a, 10b: swing member support, 11a, 11b: shaft, 12a, 12b: swing member, 13a, 13b: long hole 14a, 14b: shaft, 15a, 15b: long hole, 16a, 16b: shaft, 17: stand lift beam, 18a, 18b: spindle coupling, 19a, 19b: link support, 20a, 20b: link, 21a, 21b: shaft, 22: spindle position setting member, 23a, 23b: cylinder, 24a, 24b: piston, 25a, 25b: Shaft, 26a, 26b: bearing, 27a, 27b: slide shaft, 28a, 28b, 28c: spindle pressing body, 29a, 29b: swing member, 30a, 30b: support member, 31a, 31b: long hole, 32a , 32b: shaft, 33: long hole, 34: spindle lifting cylinder, 35a, 35b: hole, 36a, 36b: connecting member, 37: rotating shaft, 38a, 38b: bearing, 39: pinion, 40a: upper rack 40b: lower rack, M1, M2: motor, J1, J2: worm jack

Claims (3)

An apparatus for aligning a roll shaft of a stand-replaceable rolling mill incorporating a pair of upper and lower horizontal rolls inside a housing and a pair of upper and lower spindle couplings which are driving means for the horizontal rolls,
A pair of oscillating members pivotally supported at both ends on the upper part of a pair of oscillating member supports erected on the base frame;
One opposing end of each swing member is pivotably connected and pivotally supported by the lower spindle support frame, and the other end is pivotally connected and pivotally supported by each of the upper pair of upper spindle support frames .
The upper spindle support frame or the lower spindle support frame is provided with a spindle position setting member set so that the alignment of the spindle coupling and the roll shaft is completed when the two spindle support frames are brought into contact with the roll shaft by raising and lowering. Spindle coupling alignment device for stand-replaceable rolling mills. A positioning device for a roll shaft of a stand-replaceable rolling mill in which a pair of left and right saddle rolls are incorporated inside a housing and a pair of left and right spindle couplings that are driving means for the saddle rolls
A stand lift beam disposed between the roll axes of the pair of reed rolls;
A freely movable spindle pressing body that presses each spindle coupling;
A pair of oscillating members pivotally supported at both ends on the upper part of the pair of supporting members erected on the stand lift beam;
One end of each swinging member facing and pivotally supported by one spindle pressing body is swingably connected and pivotally supported, and the other end is pivotally connected and pivotally supported by the other spindle pressing body ,
A spindle for a stand-replaceable rolling mill, characterized in that it is provided with a spindle position setting member that is set so that the alignment between the spindle coupling and the roll shaft is completed when the two spindle pressing bodies are brought into contact with the roll shaft. Coupling alignment device. A positioning device for a roll shaft of a stand-replaceable rolling mill in which a pair of left and right saddle rolls are incorporated inside a housing and a pair of left and right spindle couplings that are driving means for the saddle rolls
A stand lift beam disposed between the roll axes of the pair of reed rolls;
A pair of upper and lower racks each having a spindle pressing body that can advance and retract to press each spindle coupling;
A pinion that is provided on a rotating shaft that is pivotally supported by a pair of support members erected on the stand lift beam, and that meshes with a pair of upper and lower racks;
A swing shaft for rotating the rotation shaft ,
A spindle for a stand-replaceable rolling mill, characterized in that it is provided with a spindle position setting member that is set so that the alignment between the spindle coupling and the roll shaft is completed when the two spindle pressing bodies are brought into contact with the roll shaft. Coupling alignment device.

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