JPS61129209A - Disposition of driving motor for rolling machine - Google Patents

Abstract

PURPOSE:To reduce the tandem length of driving motors so that the reduction or widening of the entire floor area to be occupied of a rolling installation is prevented in rolling machines many of which are juxtaposed in series by disposing alternately zigzag the respective driving motors above and below. CONSTITUTION:A gear device 2 connected to horizontal rolls 1a and 1b disposed in the vertical direction of the 1st rolling machine S1 is driven by the driving motor 3 via a mill spindle 4 connected to the shaft of the motor 3. On the other hand, a gear device 7 connected similarly to horizontal rolls 6a and 6b of the rolling machine S2 adjacent to the machine S1 is driven by a driving motor via a mill spindle 9. The shaft of the motor 3 and the mill spindle 4 are connected approximately in a straight line and said motor is installed on a foundation 5 so as to incline downward within the range of the inclination angle permittedfor the spindle 4. On the other hand, the shaft of the motor 8 of the machine S2 and the mill spindle 9 are connected approximately in a straight line and the motor is installed on a foundation 10 so as to incline upward within the range of the inclination angle permitted to the spindle 9.

Description

[Detailed Description of the Invention] [Technical Field to which the Invention Pertains] The present invention relates to a rolling mill comprising two horizontal rolls arranged vertically in parallel, like a finishing stand in continuous rolling equipment for steel bars, wire rods, etc. This invention relates to drive motors for rolling machines arranged in parallel. In response to the demand for increased capacity of the rolling machines in this type of finishing stand, it is desirable that the capacity of the drive motor for each rolling machine be increased in a manner that prevents a significant increase in the area occupied by the entire rolling equipment.

[Prior art and its problems]

In general, a finishing stand in a continuous rolling facility for steel bars, wire rods, etc. has a large number of finishing rolling machines arranged in series in the rolling direction at relatively narrow intervals. As shown in FIG. 4, the horizontal roll 1a and the horizontal roll 1b are mechanically connected to each other by a gear device 22, and the gear device 22 is driven by a drive motor directly or via a mill spindle. - the upper and lower horizontal rolls la by a shaft drive system;
lb are driven at the same time.

However, in this case, the distance between the rolling machines arranged in series in the rolling direction of the steel bar or wire rod is narrow, and when the space for inspection and maintenance is taken into consideration, the size of the drive motor is significantly restricted. Therefore, there is a limit to the capacity that can be expected from one drive motor, and as the capacity required for each rolling machine increases, it will not be possible to increase the capacity that can be expected from one drive motor, as shown in Figure 3. As shown, a method is adopted in which the drive power is divided into a plurality of drive motors 23a, 23b, . . . and these are coupled in tandem to provide the required capacity.

However, as shown in FIG. 3, in the system in which the upper and lower horizontal rolls la and lb are simultaneously driven by a single shaft via the gear device by a plurality of drive motors connected in tandem, there is a demand for increasing the capacity of the rolling machine. As the number of drive motors coupled together in tandem increases, the axial dimension of each of the rolling machines increases, resulting in the disadvantage that the area occupied by the rolling equipment as a whole must also be significantly expanded. .

[Object of the Invention] In view of the above-mentioned drawbacks of the electric motor drive arrangement of the rolling machine of the finishing stand in conventional continuous rolling equipment for steel bars, wire rods, etc., the present invention addresses the demand for increasing the capacity of the rolling machine. It is an object of the present invention to provide power distribution for a drive motor for a rolling machine that can satisfy an increase in the capacity of the drive motor and thereby suppress an increase in the area occupied by the entire rolling equipment.

[Key points of the invention]

In order to achieve the above object, in the present invention, in the arrangement of the driving electric motor as described above, a shaft coupling that is connected to a gear device that simultaneously drives the two vertically arranged parallel rolls is provided. The rotor shafts of the respective drive motors, which are coupled to or through suitable mill spindles, drive the rolls (within the range of permissible inclination angles, the rotor shafts of the respective drive motors are arranged alternately in the direction of series juxtaposition of the rolling machines). By arranging the respective drive motors in a zigzag pattern so as to be inclined by one angle in both directions and downwards, the drive motors of the mutually adjacent rolling machines can be connected to each other over the installation width of the rolling machines. The rolling machines are connected to the respective rolling machines so as to be alternately upward and downward along the direction of series juxtaposition.

[Embodiments of the invention]

Next, the present invention will be explained in detail based on the embodiment shown in FIG.

As shown in FIGS. 1 and 2, a mill spindle is connected to a rotor shaft of a drive motor 3, and a gear system R2 is connected to horizontal rolls 1a and 1b arranged in the vertical direction of the first rolling machine S1. A gearing 7 is connected to the rotor shaft of the drive motor 8, which is driven by the drive motor 3 via the drive motor 4, while also connected to the horizontal rolls 6a and 6b of the rolling machine S2 adjacent to the rolling machine S1. The mill spindle 9 is driven by the drive motor 8. At this time, the first drive motor 3 of the rolling machine S1 is connected so that its rotor shaft and the mill spindle 4 are substantially in a straight line, and the drive motor 3 of the rolling machine S1 is connected to the mill spindle 4 so as to be directed downward within the range of the inclination angle allowed for the mill spindle 4. It is supported on a support foundation 5 so as to be inclined.

On the other hand, the drive motor 8 of the rolling machine S2 is connected such that its rotor shaft and the mill spindle 9 are substantially in a straight line, and is tilted upward within the range of the tilt angle allowed for the mill spindle 9. It is supported on the support foundation 10 as shown in FIG. Further, the same applies to the rolling machine S3 adjacent to the rolling machine S1i on the opposite side from the rolling machine S2.

The drive motor 13 is tilted upward and supported like the drive motor "8" of the rolling machine S2.

As described above, by arranging the respective driving motors of the rolling machines arranged in series in parallel in a row in a pattern of 1,000 square meters, the distance between the rolling machines is relatively narrow, as shown in Fig. 4. As shown, it is possible to secure a wide space for installing the drive motor, especially a wide space in the radial direction of the motor. Therefore, in the case of a large number of rolling machines arranged in series, such as a finishing stand in a continuous rolling facility,
As mentioned above, by tilting the shafts of these drive motors and arranging them three-dimensionally in a vertical pattern, the radial dimension of the drive motors can be expanded to meet the demand for increasing the capacity of the rolling machine. This makes it possible to increase the capacity of each motor, so unlike in conventional rolling machines, the radial dimension of the drive motor cannot be increased because it is limited by the spacing between the rolling machines, and it is necessary to install multiple motors in a plane. A tandem knot.

Instead of meeting the demand with a single diameter dog motor, it is possible to meet the demand by installing a dog motor with a single diameter.Furthermore, even if the capacity of the 4-rolling machine is significantly increased and it becomes necessary to have multiple drive motors, Since the number of electric motors coupled to the tandem is small, the length in the direction of the tandem axis can be significantly shortened compared to the conventional case.

〔Effect of the invention〕

As explained above, the present invention is applied to a driving motor of a rolling machine which has two horizontal rolls arranged vertically in parallel, such as a finishing stand in continuous rolling equipment for steel bars, wire rods, etc., and which is arranged in series in a large number in the rolling direction. , the rotor shafts of the respective drive motors are connected directly or via a suitable mill spindle to a shaft coupling connected to a gearing system that drives the two horizontal rolls simultaneously, driving the rolls. By arranging the respective drive motors in a zigzag pattern such that they are inclined alternately upward and downward in the direction of series arrangement of the rolling machines within the range of inclination angles permissible for the purpose of In response to the demand for increased capacity of rolling machines arranged in series, the increased capacity of the drive motor can be met by expanding its radial dimension, and even when a single drive motor cannot meet the demand, multiple motors can be used. Since the length of the tandem can be shortened, the area occupied by the entire rolling equipment can be reduced or its expansion can be suppressed.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing the arrangement of the driving motor for a rolling machine according to the present invention, FIG. 2 is a schematic diagram of the arrangement in a finishing stand of a continuous rolling facility when viewed horizontally from the driving motor side, and FIG. FIG. 4 is a schematic front view showing the arrangement of a conventional drive motor for a rolling machine. FIG. 4 is a schematic diagram of the arrangement when viewed horizontally from the drive motor side in a finishing stand of a continuous rolling facility. 1 a, 1 a, 6 a, 6b... horizontal roll, 2, 7
... Gear device, 3,8.13 ... Drive motor, 4.
90. mill spindle. 2nd prisoner

Claims (1)

[Claims] 1) In the drive motor of a rolling machine that is equipped with two horizontal rolls arranged vertically in parallel, such as a finishing stand in continuous rolling equipment for steel bars, wire rods, etc., and is arranged in parallel in series in the rolling direction, The rotor shaft of each of the drive motors, which is connected directly or via a suitable mill spindle to a shaft coupling connected to a gearing system that simultaneously drives the rolls, has an inclination that is permissible for driving the rolls. A drive for a rolling machine, characterized in that the respective drive motors are arranged in a zigzag pattern so as to be inclined alternately upward and downward in the direction of series arrangement of the rolling machines within an angular range. Placement of electric motor.