JPS5921683B2 - Power balance device for individually driven long material traverse feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a cooling bed consisting of a moving grid and a fixed grid, and a plurality of machines such as heating furnaces equipped with other similar mechanisms.
Regarding the power balance device used for individual drives.

Conventionally, cooling beds with this type of walking beam mechanism are arranged in the material flow direction, and cooling beds with other types of walking beam mechanisms consisting of two sets of moving gratings in which fixed gratings are replaced with moving gratings (as disclosed in Japanese Patent Application Laid-open No. (see Japanese Patent Publication No. 1983-50970), etc. are known.

However, in the former case, each cooling bed had the same configuration and operated simultaneously, with each movement being handled by each drive mechanism and power source.

Moreover, in common with walking beam mechanisms consisting of fixed and moving cylindrical grids, the true use of power in one rotation of the power shaft is when the material is lifted by the moving grid from above the fixed grid.
With 4 revolutions, the next 174 revolutions are for braking force to slow the movement of the moving grid against its inertia in order to pass the material onto the fixed grid, and the remaining half revolution is used entirely for feeding the material. It had not been done.

Therefore, in the former case, a power source must be provided for each cooling bed, which increases the cost of the equipment as a whole and has the disadvantage of large energy losses; in the latter case, the power imbalance is somewhat alleviated. The drawback was that the mechanism became complicated.

Therefore, the applicant adopted the former method, shared the power source, and created a rotational phase difference of 180° or almost 180° between moving gratings adjacent to each other in the material feeding direction in the power transmission mechanism. have devised a device that balances the weight of the moving grid to increase the transfer capacity and make effective use of power, and has already filed an application (see Japanese Patent Application No. 88,707/1983).

This invention was devised in view of the above-mentioned conventional problems, and is a power balancer that can balance the weight of a moving grid by applying it to feeding devices such as cooling beds that are individually provided without using a common power source. The purpose is to provide equipment.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

FIG. 1 shows a cooling bed in which cooling beds P and P' are arranged in series in the material feeding direction.

In the figure, 1.1' is a fixed grid, and 2.2' is a moving grid. In the figure, the fixed grid is integral, but it may be divided relative to the moving grid.

In addition, 3 and 3' are connection beams that pass through the fixed grid and connect the movable grid 2゜2' so as not to interfere with each other when going up and down.
4, 4' are columns connected to both connecting beams 3, 3',
Eccentric rotational motion of an eccentric amount e generated by drive devices 5 and 5' with eccentric rotation mechanisms equipped with motors with speed reduction mechanisms is transmitted to the moving grid 2.2' via the columns and connecting beams, respectively. .

In this case, in both drives 5, 5', the moving gratings 2,
A phase difference of 180° or almost 180° is set in the rotation of 2', and the cooling beds P and P' are operated by slightly shifting the moving gratings 2 and 2' laterally so as not to interfere with each other based on that phase relationship. Make it.

6 indicates each adjacent moving grid 2 in such an operating state of the cooling bed.
．． 2' is slidably supported or roller-supported on the connecting beam section, and is an interlocking device that connects the lower ends of these bell cranks 7 and 7', which are pivoted below each of the movable gratings 2 and 2'. It is composed of an interlocking shaft 8 that can be expanded and contracted.

9.9' is a bearing for pivoting the bell crank, and 10.10' is a roller attached to the upper end of the bell crank 7.7' so as to be in rolling contact with, for example, the bottom surface of the connecting beam 3.3'.

11 is a telescopic adjustment device placed in the middle of the interlocking shaft 8;
The length of the connecting shaft is set to the length corresponding to the rotational phase difference of the moving grating 2.2', that is, when the moving grating 2.2' is at the top dead center and the bottom dead center respectively, the bell crank 7.7' Connecting beam 3
, 3' are provided with a mechanism for adjusting the length to support them without gaps.

As the adjustment mechanism, a hydraulic cylinder, a pneumatic cylinder, an electric screw, etc. can be considered.

12゜12' are ■-shaped recesses arranged in a wave shape as a whole at equal pitches on the upper surface of the fixed grid 1.1', 13゜1
Reference numeral 3' denotes V-shaped recesses arranged in a generally wave-like manner at equal pitches on the upper surface of the moving grating 2.
5' is used to receive and lift the long material M in the recess of the fixed grid into the recess of the movable grid and deliver it to the next recess of the fixed grid, and the recess has no shape. Not limited.

Note that 14.15 is the first recess 12.1 of the fixed grid 1.1'.
12' is a charging device used for charging the long material M, a roller table, and 16° 17 is a fixed grid 1.
The extraction device used to extract the long material M from the last recess 12.12' of 1' is a roller table.

In the above configuration, the operation of this cooling bed will be explained with reference to FIGS. 2 a to 2f showing the material feeding process of this cooling bed. The first recess 12 of the fixed grid 1 of the first cooling bed P is charged by this action.

At this time, the moving grid 2 is slightly lower than the fixed grid 1 and is waiting.

Next, when the motor of the drive device 5.5' is moved by h, the moving grating 2 draws a circular locus with a diameter of 2'e, receives the long material M in its first recess 13, and fixes it. It is lifted from above the grid 1 and then fed into the recess 12.

The long materials M already placed on the fixed grid 1 are also sequentially fed in the same way.

1 If we consider such a feeding operation for the adjacent ends of the cooling beds P and P', at the moment when the movable grating 2 feeds the long material M into the last recess 12 of the fixed grating 1, the movable grating 2 ′
The first recess 13' rises above the fixed grid 1' and receives the elongated material M from the last recess 12 of the fixed grid 1 and feeds it into the first recess 12' of the fixed grid 1'.

FIG. 3 shows the relationship between the rotation of the moving grid 2.2' and the generation of load force at this time.

In the figure, 18 is a locus circle drawn by the bottom A of the recess, which is the reference point of the moving grid, and B, C, D, E, etc. on the circumference are as follows.

0 point Center point B of the trajectory circle 6 starting and stopping points where the moving grid reference point A rises above the fixed grid Top dead center point where the moving grid reference point A rises the most Point E where the moving grid reference point A falls below the fixed grid Point Bottom dead center θ where the moving grid reference point A has descended the most: AO
Angle made by EO with respect to EO (clockwise direction is positive).

In this drawing, in the cooling bed P of FIG. 1, a load force is generated at the Ω portion, and a braking force against the inertia of the material acts on the drive device 5 at the Ω portion.

In the second cooling bed P', a load force is generated in the DE portion, and a braking force is applied to the drive device 5' in the BE portion.

It can therefore be seen that in each cooling bed, the other cooling beds are being fed during a half rotation of the moving grid reference point, which was not used at all for material feeding.

In such an alternating operation system, since the phase adjustment device 6 supports the moving gratings 2 and 2', the half-rotational energy that was not used at all for feeding the material of one moving grating is transferred to the material of the other moving grating. Power can be used effectively by converting it into feeding energy, and energy loss can be extremely minimized.

In addition, since the weight of the moving gratings 2, 2' is balanced via the phase adjustment device 6, no power is required for raising the moving gratings themselves.

Therefore, the power source capacity can also be reduced.

Furthermore, in the illustration in which the roller support ends of the bell cranks 7, 7' extend in opposite directions, the interlocking shaft 8 is shortened, and in the opposite configuration, in which the roller support ends extend in opposite directions, the interlocking shaft 8 is extended. , by operating the telescopic device 11 and separating the bell cranks 7, 7' from the connecting beams 3, 3', both cooling beds p, p' can operate independently of each other, and can be used in the same way as before. You can also take the form.

In this embodiment, the cooling beds P and P' are arranged in series and the interlocking device 6 is provided along the material feeding direction, but the installation direction may be perpendicular to the material feeding direction when the cooling beds are arranged in parallel. There are no limitations.

This invention has the above-described configuration, and it is possible to reduce the torque required to raise the grid by balancing the weights of adjacent moving grids, thereby reducing the power source capacity or increasing the transfer capacity.
Further, the phase adjustment device for this purpose can be easily combined with the conventional individually driven traversing device to improve the performance.

Furthermore, according to the present invention, since the expansion/contraction adjustment device is arranged between the left and right interlocking shafts, the length of the left and right interlocking shafts can be easily adjusted even if manufacturing errors or external effects such as heat occur. can do.

Therefore, the connecting beam is supported without gaps by the bell crank,
It is possible to ensure that each moving grating always operates with the same rotational phase difference.

Furthermore, by operating the expansion and contraction device as described above and separating the bail crank from the connecting beam, both cooling beds can be operated independently of each other, and the same usage as before can be adopted.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 a to f
3 is a schematic side view showing the material feeding process, and FIG. 3 is a diagram showing the relationship between the rotation of the moving grid and the generation of load force. P, P'...Cooling bed, M...Long material, 1.1'.
...Fixed grid, 2,2'...Moving grid, 3.3'...
・Connecting beam, 4, 4'... Support, 5, 5'... Drive device, 6... Interlocking device, 7, 7'... Bell crank,
8... Interlocking shaft, 9.9' bearing, 10.10'... Roller, 11... Telescopic adjustment device, 12.12', 13
．． 13'... recess, 14... charging device, 15...
Roller table, 16...Extraction device, 17...Roller table.

Claims (1)

[Claims] 1 In a plurality of cross-feeding devices that have a fixed grating and a movable grating and are arranged so that long materials on the fixed grating can be sequentially traversed by rotationally driving the movable grating, each adjacent movable grating has a rotation speed of 1800 or more. The left and right bell cranks are supported through the upper ends of an interlocking device which has a phase difference of approximately 1800 degrees and is comprised of left-right symmetrical bell cranks located below each and an interlocking shaft connecting the lower ends of these bell cranks. A power balance device for an individually driven long material traversing device, characterized in that a telescopic adjustment device is arranged in the middle of the interlocking shaft.