JP2557963Y2 - Rollover device for large items - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for rolling over large items, and more particularly, to a device for rolling over large items which need to be rolled over like a choke on a rolling stand to perform work such as inspection and maintenance. It is.

[0002]

2. Description of the Related Art In the field of manufacturing steel products, there are many assembled products and single products that are heavy, block-shaped, large-sized products that need to be turned over to perform inspection, maintenance, parts replacement, welding, and the like. . A typical example is the rolling stand chocks (bearing boxes). These chocks are periodically removed from the rolling stand, turned over 90 degrees, and the periodic inspection and maintenance of the built-in bearings and parts replacement are performed. After that, it is restored to 90 degrees and rolled over, and it is installed in the rolling stand again.

[0003] Conventionally, when these large items are turned over by 90 degrees, a crane is used in the case of a single shot.
It is often rolled over by hanging the main and auxiliary windings together, and in cases where periodic inspection and maintenance are required, such as chock, etc., it is usually a schematic explanatory diagram (Fig. 3). A rollover device having a configuration as shown is used.

[0004] The rollover device illustrated in FIG. 3 is configured such that two pedestals (22) and (23) formed in the shape of a rectangular board are attached to each other by 90 degrees.
At an angle of degree, they are attached in an L-shape to the freely rotatable main shaft (21), and on the back side of these pedestals (22) and (23),
An arcuate transmission member (24) provided with gear teeth (24a) on the outer periphery is mounted concentrically with the main shaft (21), and a gear tooth (24a) of the transmission member (24) is attached to a deceleration (not shown). And a pinion gear (25) driven and rotated by a motor with a housing.

In this rollover device, first, as shown in FIG. 3 (a), one receiving stand (22) is made horizontal, and the other receiving stand (2
In the reference state where 3) is positioned 90 degrees above, the chock B to be worked is placed at a predetermined distance between the side surface to be lowered and the upper surface of the other cradle (23), and one cradle ( 22) Place on top.
Then, after a plurality of spacers S made of a small jack or the like are arranged between the side surface of the mounted choc B and the upper surface of the other receiving stand (23), by rotating the pinion gear (25), As shown in the figure, the other receiving stand (23) is rotated until it becomes horizontal, and the chocks B to be worked are turned over by 90 degrees.

[0006]

However, the above-mentioned conventional rollover device can be remotely operated, and is much safer and more efficient than a rollover using a crane, which requires special consideration for ensuring safety. Can be rolled over, but there is a problem in workability with the rolled-up chocks B and the like. That is, in this rollover device, when the chock B or the like is rolled over, one cradle (2) rises 90 degrees upward on the side of the rolled chock B as shown in FIG. Therefore, it is difficult to approach the worker and the working equipment from the direction indicated by the large broken line arrow in the drawing, and the working direction is from the solid large arrow in the drawing to the direction perpendicular to the paper. It is restricted and reduces work efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is possible to safely and efficiently roll a large product under remote control. It is an object of the present invention to provide a large-sized rollover device that allows a worker, a work implement, and the like to approach from all sides, thereby improving the work efficiency.

[0008]

Means for Solving the Problems In order to achieve the above object, the present invention is configured as follows. That is, the large-sized rollover device according to the present invention has a drive arm protruding laterally at the center, and both ends thereof are rotatably supported by a pair of main supports erected on a base. A main shaft, a main cylinder disposed on a base located in front of or behind the pair of main struts and having an output end connected to a drive arm of the main shaft; and a main cylinder disposed in front of the main shaft and having both side edges on the main shaft side. A first disk-shaped pedestal connected and joined to both ends of a main shaft located outside the pair of main supports via connection side plates provided on the main portion, and disposed on the rear side of the main shaft, and both side portions on the main shaft side Via the engagement side plate provided on the lower surface,
A second pedestal that is rotatably connected to both ends of a main shaft located inside the connection side plate of the first pedestal, and an output end that is hung on the lower surface on both sides of the first pedestal; And a pair of auxiliary cylinders connected to the inner end of the engaging side plate of the second cradle, and the connecting side plate of the first cradle is in a direction orthogonal to the upper surface of the cradle at 90 degrees. While having a protruding engagement portion and having a lock hole penetrated in the engagement portion in parallel with the axis of the main shaft, the engagement side plate of the second receiving stand is connected to the lock hole of the connection side plate of the first receiving stand. A lock cylinder having a lock pin to be engaged is provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing a rollover device according to an embodiment of the present invention, wherein FIG. 1A is a front sectional view, and FIG. 1B is a sectional view taken along line AA of FIG. .

In FIG. 1, (1) is a main shaft,
The main shaft (1) has a drive arm (1a) projecting downward from the center at the center, and both ends of the drive arm (1a) are mounted on the upper part of a pair of main supports (11) erected at the center of the base (10). Pivotally supported on the base
It is located horizontally above and spaced apart from (10).

(2) is a first receiving stand, which is the first receiving stand.
(2) The main part is formed in a square disk shape, and
A pair of connecting side plates (4) orthogonal to the main body on both side edges of the side end
It is connected and joined to both ends of the main shaft (1) located outside the pair of main supports (11) via the connecting side plate (4), and under this joining relationship, It can rotate from a horizontal position in front of the main shaft (1) to a position 90 degrees above.

[0013] The connecting side plate (4) of the first receiving stand (2).
Has an engaging portion (4a) projecting in a direction orthogonal to the upper surface of the main body at 90 degrees, and (b) as shown in the drawing, an end of the engaging portion (4a) has a main shaft (1 ) Is provided with a lock hole (4b) penetrated in parallel with the axis.

(3) is a second receiving stand, which is the second receiving stand.
(3) The main body is formed in the shape of a rectangular disk having substantially the same dimensions as the first receiving stand (2), and a pair of mating members orthogonal to the main body is formed on the lower surface on both sides of one side end. It is provided with a mating side plate (5), and is turned to both ends of the main shaft (1) located inside the connecting side plate (4) of the first receiving stand (2) via the engaging side plate (5). (A) In this connection relationship, independently of the rotation of the spindle (1) and the first cradle (2), (a) the spindle (1) shown by a chain line in the figure. Can be rotated from a horizontal position behind to a position 90 degrees upward indicated by a solid line. In the main portion of the second receiving stand (3), a large number of screw holes (3a) penetrating in a direction perpendicular to the upper surface thereof are provided with a uniform distribution as shown in FIG. Have been.

As shown in FIG. 2 (b), a connecting side plate (4) of the first receiving stand (2) is provided at a rear end of the engaging side plate (5) of the second receiving stand (3). An air-operated lock cylinder (6) having a lock pin (6a) that engages with a lock hole (4b) provided in the engagement portion (4a) is mounted on the second receiving stand (3). When the upper surface and the upper surface of the first receiving stand (2) occupy a relative rotation position forming 90 degrees, the lock pin (6) of the lock cylinder (6)
a) can be engaged with the lock hole (4b) of the first receiving stand (2) to connect with the first receiving stand (2) in an L-shape. It is supposed to follow the rotation of the table (2).

(7) is a main cylinder, which is of a hydraulically operated type and has a main shaft (1) on a base (10) located behind a pair of main columns (11). ), And its output end is connected to the drive arm of the spindle (1).
(1a), and the main shaft (1) is
It is to be rotated 90 degrees.

Reference numeral (8) denotes an auxiliary cylinder. This auxiliary cylinder (8) is of a hydraulically operated type and has a pair of holding members (9) attached to the lower surfaces on both sides of the first receiving table (2). ) Are supported and hung from each other, are arranged in pairs in a direction perpendicular to the main shaft (1), and have their output ends connected to the engagement side plates (5) of the pair of the second cradle (3). It is connected to each front end, and by its operation, the second cradle (3) is connected to the spindle (1) and the first cradle.
Independently from (2), it is rotated by 90 degrees.

Reference numeral (12) denotes a pedestal support column, and the pedestal support column (12) is provided on a base (10) below the first pedestal (2) and the second pedestal (3). The first receiving stand (2) and the second receiving stand (3) when standing upright and positioned horizontally are supported from below.

Here, the rollover device of the present embodiment is shown in FIG.
As shown in (1), the upper surfaces of the first receiving stand (2) and the second receiving stand (3) when positioned horizontally are arranged at substantially the same level as the floor line. The main cylinder (7) and the auxiliary cylinder (8) are connected to a hydraulic device (not shown),
(6) An electromagnetic valve is provided in the pipeline for supplying compressed air, and the hydraulic device and the electromagnetic valve are connected to the same control panel, and the main cylinder (7) and the auxiliary cylinder (8) are connected by the control panel. And the operation of the lock cylinder (6) can be controlled.

The operation of the rollover device of the present embodiment having the above configuration is
This will be described with reference to FIG. 2 by taking an example of rollover for a chock of a rolling stand.

First, after the lock cylinder (6) is operated to the rear end side, the main cylinder (7) and the auxiliary cylinder (8) are operated to the rear end side, and the first receiving stand (2) and the second Two receiving stands (3)
Is positioned horizontally, and this is set as a reference state. In this reference state, the first cradle (2) and the second cradle (3) are supported by the cradle support columns (12) from below, and the upper surfaces of the respective cradle support columns (12) are substantially at the same level as the floor line. Eggplant

In this reference state, the chock B to be worked is carried in and placed on the first receiving table (2) as shown in FIG. At this time, the side surface to be set downward of the chock B is directed toward the main shaft (1), and the side surface position is set at a predetermined position on the upper surface of the inner end portion of the first receiving table (2). It is determined by contacting the stopper S. On the other hand, a screw jack J composed of a headed bolt is screwed to a predetermined height into a plurality of screw holes (3a) occupying positions where the chocks B of the second receiving stand (3) should be received.

Next, after removing the positioning stopper S, the auxiliary cylinder (8) is operated to the front end side, and the second receiving stand (3) is turned upward by 90 degrees as shown in FIG. Then, the lock cylinder (6) is operated to the front end side to connect the second cradle (3) and the first cradle (2) in an L-shape. At this time, the upper end surface of each screw jack J previously screwed into the screw hole (3a) of the second receiving stand (3) comes into contact with the side surface of the chock B.

Next, from this state, the main cylinder (7) is operated to the front end side, and as shown in FIG. 3 (c), the first receiving stand (2) and the second receiving stand connected in an L shape as shown in FIG. (3) and are rotated 90 degrees together, and by this rotation, the chocks B between them are
Turn over 90 degrees. At this time, the auxiliary cylinder (8)
Since it is rotated 90 degrees upward, the front end state is maintained without being affected by the relative positional relationship with the second receiving stand (3).

Next, after confirming that the chocks B are stable, the lock cylinder (6) is actuated to the rear end side to move the lock cylinder (6) between the first receiving stand (2) and the second receiving stand (3). While the back pressure of the auxiliary cylinder (8) is removed, and the main cylinder (7) is moved to the rear end side.
(d) As shown in the figure, the first receiving stand (2) is turned 90 degrees downward to return to the horizontal position. Then, work such as inspection and maintenance is performed on the chock B in this state, and when a series of the work is completed, the chock B is operated in a reverse operation procedure to the above.
(a) Rollover is returned to the state shown in the figure.

In the rollover device of the present embodiment for rolling over a large product such as a chock B as described above, the first product to be worked is
Since all operations can be performed from the control panel, except that the loading and unloading to the receiving stand (2), the setting and removal of the positioning stopper S, and the setting and adjustment of the screw jack J are performed manually, the chocks B, etc. Overturn of large items
It can be performed efficiently and safely with a small number of personnel of about 3 or so. In addition, a flat work space can be secured around the large product after the rollover, and the large product can be secured from each direction, that is, the front-rear direction indicated by the large solid arrow in FIG. In addition, since the worker and the work implement can be approached from any direction in both directions perpendicular to the paper surface, the work can be facilitated and work efficiency can be improved.

In this embodiment, the positioning stopper S and the screw jack J are manually set and removed.
Although the adjustment is made, these can be configured to automatically advance and retreat, and the selection may be determined according to the form and scale of the large-sized product to be handled and the scale of the apparatus corresponding thereto.

In this embodiment, the first and second receiving tables are used.
The pedestal support pillars (12) are arranged below (2) and (3) to bear the load of large items on the first and second pedestals (2) and (3). However, these are not always necessary, for example, the first and second cradle (2), which are positioned horizontally,
The outer end of (3) is supported by the upper opening end of the pit P, etc.
It can also be supported by structures other than the rollover device.

In this embodiment, one main cylinder is provided.
(7) is located behind the main strut (11).
Needless to say, it may be arranged in front of 1), or a plurality may be arranged according to the scale.

[0030]

[Effect of the Invention] As described above, according to the rollover device according to the present invention, a large product can be rolled over safely and efficiently under remote control, and the rollover device can be used for a rolled large product. Thus, the worker and the working equipment can be approached from all sides to improve the working efficiency.

[Brief description of the drawings]

FIG. 1 is a view showing a rollover device according to an embodiment of the present invention, wherein (a) is a front sectional view, and (b) is a sectional view taken along line AA of (a).

FIG. 2 is an explanatory view of the operation of the rollover device according to the embodiment of the present invention.

FIG. 3 is a schematic explanatory view of a conventional rollover device.

[Explanation of symbols]

(1)-Spindle (1a)-Drive arm, (2)-1st support (3)-2nd support, (4)-Connection side plate (4a)-Engagement part (4b )-Lock hole (5) --Mating side plate (6) --Lock cylinder (6a) --Lock pin (7) --Main cylinder (8) --Auxiliary cylinder (9) --Holding member (10 )-Base (11)-Main column (12)-Brace support column P-Pit

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-52811 (JP, A) JP-A-2-89709 (JP, A) JP-A-63-252812 (JP, A)

Claims (1)

(57) [Scope of request for utility model registration] 1. A main shaft having a drive arm protruding laterally at a central portion, both ends of which are rotatably supported by a pair of main supports erected on a base, and a pair of main supports. And a main cylinder whose output end is connected to a drive arm of the main shaft, and a connection side plate provided in front of the main shaft and provided on both side edges on the main shaft side. A first pedestal in the form of a rectangular board connected and joined to both ends of the main shaft located outside the pair of main struts, and an engaging side plate provided behind the main shaft and provided on the lower surface of both sides on the main shaft side. A second disk-shaped second rack that is rotatably connected to both ends of the main shaft located inside the connection side plate of the first rack, and is hung on the lower surface of both sides of the first rack; A pair of auxiliary cylinders having an output end connected to the inner end of the engagement side plate of the second cradle, and the connection side plate of the first cradle being mounted on the cradle. While having an engaging portion projecting in a direction orthogonal to the surface at 90 degrees and having a lock hole penetrated in parallel with the axis of the main shaft in the engaging portion, the engaging side plate of the second cradle, A large-sized rollover device comprising a lock cylinder having a lock pin engaged with a lock hole of a connecting side plate of the first receiving stand.