JP3342955B2 - Automatic alignment balance and automatic alignment method of balance - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the lifting and lifting of structural components used in assembling, installing and dismantling structural components in the construction or periodic inspection of structures such as boilers. Regarding the balance.

[0002]

2. Description of the Related Art At the time of assembling, installing, and disassembling structural components in the construction or periodic inspection of a structure such as a boiler, the structural components (hereinafter referred to as loads) are suspended.
Need to fry . When the structure / shape of the load is complicated and it is difficult to specify the position of the center of gravity, the load 1 is connected to the plurality of hooks 10 on the lower surface of the balance 2 by wires 14 as shown in FIG. When the load 1 is lifted from the gantry 60 on the ground by the heavy equipment 6 and the suspended load 1 is separated, if the inclination due to the displacement of the center of gravity occurs, the suspended load 1 is operated by operating the wire 14 and the chain block 52 of the balance 2. It has been necessary to repeatedly adjust the suspended load 1 so as to be horizontal and further operate the chain block 52 of another suspended load 1 to adjust the entire suspended load 1 horizontally. As described above, the skill of horizontally adjusting the suspended load 1 having a complicated structure and shape by the balance 2 when lifting the conventional suspended load 1 requires skill. Further, as a device related to this type of device for finely adjusting a horizontally lifted suspended load 1 by carrying it to a predetermined place by a heavy lifting machine 6, for example, Japanese Unexamined Patent Publication No.
No. 9-52044.

[0003]

In the prior art described below, no consideration is given to performing the automatic alignment when suspending a load in which it is difficult to determine the position of the center of gravity of the suspended load 1, and the following problems arise. There was a point. (1) It is not possible to determine in which direction the load 1 is inclined when it is lifted. (2) Chain block 52 for leveling suspended load 1
Is required. (3) To make the suspended load 1 horizontal, we carry out trial suspension many times,
In addition, it is necessary to change the hanging point. (4) In some cases, the suspended load 1 is deformed by repeated trial suspension. (5) It takes a long time to lift the suspended load 1 to a regular place. Therefore, an object of the present invention is to provide a balance that can automatically align a suspended load. It is another object of the present invention to provide an apparatus for instantly restoring a balance to a horizontal state while a suspended load is lifted.

[0004]

The above object of the present invention is achieved by the following constitution. In other words, depending on the heavy lifting machine
Hanging is used in between said hanging said the lifting for heavy suspended load during lifting fried load, and hanging members for connecting via the connecting member and the hanging fried for heavy machinery and the suspended load, the該吊Ri member in balance with a support member for supporting said suspended
The supporting members that support the connecting members
A side component to be configured and a pair of opposed sides in the side component.
Both ends are supported on the side component member and the
A movable sliding member, wherein the suspending member is
The inside of the moving member is moved in a direction orthogonal to the sliding direction of the sliding member.
Moving mechanism, and the hanging member portion is attached to the sliding member.
And a tilt angle detecting means for detecting a tilt angle of the balance with respect to the horizontal, and a position movement of the hanging member until the balance is detected to be horizontal based on a detection value from the tilt angle detecting means. This is an automatic alignment balance provided with a control means for performing the adjustment .

[0005] In addition, Te self-aligning balance the smell of the present invention, above
Serial movable suspension member preferably includes a connecting portion of the connecting portion and the suspended load side Tsuaga for heavy equipment side. In addition, the connecting portion on the lifting heavy machine side or the connecting portion on the lifting load side of the movable hanging member is formed separately, and one of the connecting portions is fixed to the support member, and the other is connected to the support member. It can be configured to be movable in the longitudinal direction.

In the self-aligning balance according to the present invention, the supporting member comprises a pair of shaft-shaped members arranged in a cross shape, and the movable hanging member has an end portion at each of the pair of shaft-shaped members. An intersection angle adjusting member for adjusting an intersection angle between the pair of connected shaft-shaped members ;
The suspending member portion may be configured that are installed in each member of the pair of shaft-like member. In the above self-aligning balance, hanging movable member may be configured to include a mechanism for moving the individual hanging member portion on the support member. Furthermore, the self-aligning balance
In the designated place
A fan for fine adjustment of the position
It is good also as a structure provided in the edge part which does.

The above object of the present invention is achieved by the following constitution. That is, the lifting device is used between the lifting heavy machine and the suspended load when lifting the suspended load by the lifting heavy machine, and is used for connecting the lifting heavy device and the suspended load via a connecting member. In a balance provided with a member and a supporting member for supporting the hanging member, the supporting member has a cross shape.
Movable, consisting of a pair of shaft-shaped members
The hanging member is attached to each supporting member of the pair of shaft-shaped members.
Intersection angle of a pair of shaft-shaped members with their ends connected
Angle adjustment member for adjusting the suspension member
Is attached to each support member of the pair of shaft-shaped members.
And the tilt to detect the tilt angle of the balance with respect to the horizontal.
Inclination angle detection means, and a detection value from the inclination angle detection means
Until the balance is detected to be horizontal based on
Control means for moving the position of the connecting member.
It is a core balance. The self-aligning balance is movable
The material is a machine that moves the individual suspension members on the support
A configuration having a structure can be adopted.

[0008]

[0009]

According to the action] claim 1 Symbol placement of invention, the hanging member and the hanging Ri member used between the suspended load and the hanging lifting for heavy equipment during frying hanging suspended load by heavy for Tsuaga in place Using a balance equipped with a support member for supporting the load, after the suspended load is grounded and temporarily suspended so that the suspended load is aligned horizontally, the position of the center of gravity of the suspended load is detected by the inclination angle of the balance. There is an effect of correcting the arrangement position of the hanging member of the balance by detecting by means, and instantly restoring the balance to the horizontal. When the tilt angle detecting means of the balance detects the horizontal tilt of the balance, which changes in the orthogonal direction according to the center of gravity of the load lifted by the hanging member, it can be moved until the control means detects the horizontal position of the balance. The operation of the suspension member is controlled to level the balance. Thus, even if the structure of the suspended load is complicated and the center of gravity is difficult to identify, the balance can be instantaneously restored to a horizontal position, and the work of centering the balance can be made much more efficient. According to the fifth aspect of the present invention, in a state where the suspended load is suspended by the suspending member movable on the pair of shaft-shaped members arranged in a cross shape, the intersection angle of the pair of shaft-shaped members intersects. The hanger is adjusted to be horizontal by the angle adjusting member, and the suspended member is moved to hold the suspended load in the horizontal position.

[0010]

An embodiment of the present invention will be described with reference to the drawings. Embodiment 1 Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 7 shows the manner in which a suspended load 1 having a complicated structure and for which it is difficult to determine the position of the center of gravity is suspended by the balance 2 (combined body of the gutters 3 and 4) and lifted by the lifting heavy machine 6 in this embodiment. It is an external view. A perspective view of the balance 2 is shown in FIG.
FIG. 2 is a plan view of a drive mechanism of the gutters 3 and 4. The balance 2 has a pair of hollow prisms facing each other of a frame body 7 in which prisms are assembled in a rectangular shape as garters 4. Both ends are supported on the pair of opposed gatas 4, and the longitudinal direction of the pair of garters 4 is The gutter 3 includes a pair of hollow prisms arranged so as to be able to travel in the X-axis direction in FIG. 1 and a reinforcing shaft 9 that connects central portions of a pair of opposed gutters 4.

The gutter 3 which is a pair of hollow prisms has a female screw (not shown) having both ends inside the garter 4 (FIG. 10).
The female thread 39 can be slid on the garter 4 by the movement of the female thread. Therefore, the garters 3 of the pair of hollow prisms can move in parallel in the longitudinal direction of the garters 4 of FIG. The pair of gutters 3 have two built-in hooks 10 movable in the longitudinal direction (the Y-axis direction in FIG. 1).
Has a portion that protrudes outside through slits 11 provided above and below the gutter 3, and the wire 1
3, 14 (FIG. 7) can be connected. That is,
The hoisting load 1 is lifted via a wire 14 (FIG. 7) provided at the lower end of the hook 10. In addition, hook 10
Is connected to the heavy lifting machine 6 (FIG. 7) via a wire 13.

FIG. 2 is a layout view of the drive mechanism inside each of the garters 3 and 4. Driving of the garter 3 by the garter 4 is performed as follows. First, the driving device 15 on the shaft 9
Rotates the gear 18 via the belt 17 as shown in FIG. 3, and the bevel gear 19 connected to the gear 18 (FIG. 2)
To rotate. A bevel gear 21 meshed with the bevel gear 19 and a rotating shaft 22 thereof are provided inside the gutter 4 in the longitudinal direction. A spiral screw is formed on the rotating shaft 22 in the gutter 4 on the surface thereof.
The female threads (not shown) of the connecting members at both ends are screwed together, so that the rotation of the rotating shaft 22 moves the gutter 3 (see FIG. 10). The movement of the hooks 10 provided two each in the gutter 3 is performed by four driving devices 23 on the central portion of the shaft 9. Each of the driving devices 23 rotates a spline 25 via a belt 24, and two splines 25 are provided through the side walls of each garter 3, and both ends of the spline 25 are illustrated by a rectangular frame 7 and a shaft 9. Not supported by bearings. And the spline 25
Bevel gear 2
And a bevel gear 2 meshing with the bevel gear 26.
7 is provided in the longitudinal direction of the gutter 3. The bevel gear 27 in the gutter 3 is connected to a rotary shaft 28 provided on the surface with a helical screw arranged in the longitudinal direction of the gutter 3. Further, since the rotating shaft 28 is engaged with a female screw 30 (see FIG. 4) integrated with the hook 10, the hook 10 can move along the longitudinal direction of the gutter 3 by the driving of the driving device 23. A part of the hook 10 is pulled out into a window shape, and a two-part female screw 30 is inserted into this part, and the two-part female screw 30 fixed with a bolt (not shown) can be easily replaced using a flat metal or the like. I do.

Therefore, the hook 10 can be moved in the X-axis direction and the Y-axis direction (FIG. 1) of the balance 2 by the movement of the gutter 3 on the gutter 4 and the movement of the hook 10 itself in the longitudinal direction of the gutter 3. As shown in FIG. 7, the suspended load 1 is easily maintained in the horizontal position by the heavy lifting machine 6 via the wires 13 and 14 attached to the hook 10. When the suspended load 1 is set at the horizontal position, the drive lock device 2 shown in FIG.
9 acts to lock the hook 10 in that position. The drive lock device 29 is provided between the outer periphery of the side recess of the hook 10 provided in the space inside the gutter 3 and the inner surface of the side wall of the gutter 3 as shown in a perspective view of the hook 10 of the gutter 3 shown in FIG. As shown in the conceptual diagram of the drive lock device 29 in FIG. 5, the taper shaft 33 is capable of being inserted between the pair of shoes 31 and the pair of shoes 31 and is capable of moving in and out of the cylinder 34. Of the hook 10 is locked by the taper shaft 33 of the pair advancing between the pair of shoes 31. Note that in FIG.
The internal thread 30 integrated with the rotary shaft 28 provided on the surface with a spiral screw disposed over the longitudinal direction of the gutter 3
I'm engaged. Note that a lock device for locking the drive of the garter 3 similar to that shown in FIGS. 4 and 5 is also provided in the garter 4.

As shown in FIG. 1, a tilt angle detection sensor 35 with an antenna 36 for detecting the tilt of the balance 2 in the X-axis direction and the Y-axis direction is provided on the shaft 9 at the center of the gutter 4.
(The embedded tilt sensor GIC series manufactured by Kowa Co., Ltd. or the servo tilt angle sensor MC100 type manufactured by Japan Aviation Electronics Industry Co., Ltd.) and the driving device 23 of the hook 10 driven and controlled by the detection value of the sensor 35 Power supply 3 for a series of devices
7 are arranged. FIG. 6 shows an X-axis tilt angle detection sensor 35a, a Y-axis tilt angle detection sensor 35b,
a, self-aligning balance garter 3 based on the detection signals of 35b
4 shows a relational diagram of a remote controller (control device) 38 for controlling the driving devices 15 and 23 for driving the driving device 4. Mt in the figure represents the motor of the driving devices 15 and 23. When the X-axis tilt angle detection sensor 35a detects the tilt in the X-axis direction,
The driving device 15 starts driving according to a command from the remote controller 38, and moves the Y-axis self-aligning balance gutter 3 in the X-axis direction to a position where the suspended load 1 (FIG. 7) is in a horizontal state. Then Y
When the tilt in the Y-axis direction is detected by the shaft tilt angle detection sensor 35b, the drive device 23 of the lower garter 4 starts driving according to a command from the remote controller 38, and the load 1 in the Y-axis direction (FIG. 7).
When the X and Y axis tilt angle detection sensors 35a and 35b detect that the balance 2 has been restored to the parallel state, the driving devices 15 and 23 are locked, and the hook 10 Movement stops.

Embodiment 2 FIGS. 8, 9 and 10 show the main parts of a second embodiment of the present invention. FIG. 8 is a perspective view of the balance, and FIG. 10 is a perspective view for explaining a part of the internal structure of the gutter 4 and an interlocking mechanism between the garters 4 and 3. FIG. 9 is a cross-sectional view of the gutter 4 cut in the longitudinal direction. 9 and 10, the driving device 1 for moving the garter 3 on the garter 4
5 is different from the first embodiment. A drive device 15 for driving the female screw 39 connected to the end of the gutter 3 is provided on the gutter 4. Inside the gutter 4, a female screw 39 provided integrally with a plate member 44 connected to an end of the bottom of the gutter 3 meshes with the female screw 39,
A rotating shaft 40 having a screw groove formed on the surface of the gutter 4 that extends through the female screw 39 in the longitudinal direction is supported at both ends by bearings 41 (FIG. 9). It should be noted that the female screw 39 is a replaceable member divided into two similarly to the female screw 30 described with reference to FIG. One end of the rotating shaft 40 extends from the bearing 41 (FIG.
1 is omitted), a gear 42 is provided at an end thereof, and the gear 42 is connected to the drive device 1 on the garter 4 via a belt 43.
5 is linked. Therefore, the rotating shaft 40 is rotated by the driving force of the driving device 15, and the garters 3 can be moved in the longitudinal direction of the garters 4 via the female screws 39.

The hook 10 is engaged with a rotary shaft 28 having a screw groove arranged in the gutter 3 along the longitudinal direction of the gutter 3 through a two-part female screw 39 which can be inserted into and removed from the hook 10. Therefore, the rotating shaft 28 moves on the gutter 3 by the same mechanism as in the first embodiment. That is, a driving device (not shown) similar to the driving device 23 on the shaft 9 in FIGS. 1 and 2 can rotate the rotation shaft 28 and move the hook 10 on the gutter 3. Further, similarly to the first embodiment, a tilt angle detection sensor 35 for detecting the tilt of the balance in the X-axis direction and the Y-axis direction is provided on the shaft 9 (FIG. 8) at the center of the garter 4, and the detection value of the sensor 35 The driving device 23 of the hook 10 that is driven and controlled via the antenna 36 by the controller and the power supply 37 of a series of devices are arranged. Therefore, the hook 10 can be moved in the X-axis direction and the Y-axis direction of the balance as shown in FIG. 1 by the movement of the gutter 3 on the gutter 4 and the movement of the hook 10 itself in the longitudinal direction of the gutter 3. Although not shown, the suspended load can be easily maintained at a horizontal position by a heavy lifting machine via a wire attached to the hook 10. When the suspended load is set in the horizontal position, the drive lock device 29 (FIG. 9) in the gutter 3 operates to operate the hook 1.
Fixing 0 at that position is the same as in the first embodiment. In each of the above embodiments, the hook 10 is connected to the heavy lifting machine 6 (FIG. 7).
Side), there is an upper portion of the hook 10 connected via a wire 13 and a lower portion of the hook 10 connected via a wire 14 of the suspended load 1 for lifting.
One of the upper and lower portions can be fixed to the wall of the gutter 3 and the other hook portion can be a movable mechanism.

Embodiment 3 In the third embodiment of the present invention shown in FIG. 11, a part of the internal structure of the garter 4 and an interlocking mechanism between the garter 4 and the garter 3 are the same as those in the embodiment shown in FIG. The description is omitted. In the present embodiment, the hook 10a connected to the lifting heavy machine 6 (see FIG. 7) via the wire 13 employs a mechanism capable of moving in the gutter 3, but the lifting load 1 (see FIG. 7).
The hook 10b connected via a wire 14 for lifting is fixedly attached to the garter 4 and a shaft 61 arranged in the frame 7 in parallel with the garter 4.

Embodiment 4 FIG. 12 shows a fourth embodiment of the present invention. In this case, when the crossing angle between the garter 50 is adjusted by the crossing angle adjusting cylinder 51 and the inclination angle detection sensor 35 and the sensor of the device incorporating the power supply detect the horizontal position, the girder 50 attached in a cross shape is detected. In this position, the crossing angle is locked by a lock device (not shown), the crossing angle of the gutter 50 is fixed, and the suspended load (not shown) lifted via the hook 10 is held in a horizontal position. Embodiment 5 FIG. 13 shows a fifth embodiment of the present invention. In this embodiment,
The horizontal adjustment of the suspended load 1 lifted by the balance 2 is performed by a chain block 52 generally used conventionally, but the suspended load 1 lifted horizontally is moved to a predetermined place by a heavy machine. The direction and position of the suspended load 1 are changed using the rotational propulsive force of the two fans 53 incorporated at both ends of the balance 2 for carrying and fine adjustment and the detected inclination angle of the inclination angle detection sensor 35. And the effect of shortening the mounting time at high places can be obtained. Embodiment 6 In the embodiment shown in FIG. 14, an inclination angle detection sensor 35 is arranged on the suspended load 1 and a hydraulic drive device 56 on the balance 2 is connected via a hydraulic hose 54 based on a signal from the inclination angle detection sensor 35. The configuration is such that the hydraulic motor of the hydraulic motor block 55 is drive-controlled. In this way, the length of the wire 14 for suspending the suspended load 1 is adjusted to keep the suspended load 1 and the balance 2 in a horizontal state. Note that the inclination angle detection sensor 35 may be disposed on the balance 2. In any of the above embodiments, the driving of the driving device is controlled by the remote controller 38 (FIG. 6) by detecting the inclination angle of the sensor 35 in any case.

[0019]

As described above, according to the present invention, the load position of the balance is detected by the inclination of the balance, and the load position of the balance can be automatically adjusted to restore the horizontal position. Eliminates the need for repeated trial hanging to level the balance, which was performed during frying, and repeated operation of the chain block.
Since it does not tilt, safety can be significantly improved. In addition, it can be expected to be used on the other side such as receiving in the factory, assembling in the manufacturing process, shipping, draining and installation.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an automatic alignment balance according to a first embodiment of the present invention.

FIG. 2 is a plan view for explaining a gutter and a hook driving mechanism of the self-centering balance according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a hook driving device in a gutter of the self-aligning balance according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a gutter of the self-centering balance according to the first embodiment of the present invention.

FIG. 5 is a conceptual diagram of a drive lock device of the self-centering balance according to the first embodiment of the present invention.

FIG. 6 is a conceptual diagram of remote control of the self-aligning balance according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a procedure for lifting a load having a complicated structure and for which it is difficult to specify the position of the center of gravity according to the first embodiment of the present invention.

FIG. 8 is a schematic perspective view of an automatic alignment balance according to a second embodiment of the present invention.

FIG. 9 is a partial cross-sectional view for explaining a gutter and a hook driving mechanism of the self-centering balance according to the second embodiment of the present invention.

FIG. 10 is a perspective view of another garter driving device on the gutter of the self-aligning balance according to the second embodiment of the present invention.

FIG. 11 is a side view of the self-centering balance according to the third embodiment of the present invention.

FIG. 12 is a perspective view of an automatic alignment balance according to a fourth embodiment of the present invention.

FIG. 13 is a schematic perspective view of an automatic alignment balance according to a fifth embodiment of the present invention.

FIG. 14 is a side view of the self-centering balance according to the sixth embodiment of the present invention.

FIG. 15 is a view showing a procedure of lifting using a conventional balance.

[Explanation of symbols]

1 ... suspended load, 2 ... balance, 3 ... upper gata, 4 ... lower gata, 6
... heavy lifting equipment, 7 ... frame, 9 ... shaft for reinforcement, 10 ...
Hook, 13, 14 ... wire, 15, 23, 56 ... drive device, 17, 24, 43 ... belt, 19, 21, 26,
27: bevel gear, 29: drive lock device, 30, 39: female screw, 33: taper shaft, 35: inclination angle detection sensor, 38: remote controller, 50: gutter, 5
1 ... Cylinder for crossing angle adjustment, 53 ... Fan, 52 ... Chain block, 55 ... Hydraulic motor block

Continuation of the front page (56) References JP-A-47-5520 (JP, A) JP-A-2-249893 (JP, A) JP-A-63-134495 (JP, A) Jpn. , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66C 13/08

Claims (6)

(57) [Claims] 1. A lifting device for lifting a suspended load, which is used between the lifting device and the suspended load to connect the lifting device and the suspended load via a connecting member. Provided with a suspending member for supporting the suspending member, the supporting member supporting the suspending member, a side constituting member constituting each side of a rectangular frame, and the side constituting member A sliding member whose both ends are supported on a pair of opposed side constituent members inside and which can move on the side constituent member, wherein the hanging member slides inside the sliding member in a sliding direction of the sliding member. A mechanism that moves in a direction perpendicular to the direction of movement of the balance. The hanging member portion is attached to the sliding member. Further, an inclination angle detection unit that detects an inclination angle of the balance with respect to the horizontal, The balance is set to water based on the detected value. Automatic alignment balance, characterized in that a control means for performing position movement of the hanging member to detect that this is. 2. The self-aligning balance according to claim 1, wherein the movable suspending member has a connecting portion on the lifting heavy machine side and a connecting portion on the suspended load side. 3. A connecting portion of the movable lifting member on the side of the heavy lifting machine or a connecting portion of the hanging load is formed separately, and one of the connecting portions is fixed to the supporting member, and the other is connected to the supporting member. 3. The self-aligning balance according to claim 2, wherein the supporting member is configured to be movable in a longitudinal direction. 4. A fan for finely adjusting the position of a suspended load after being horizontally lifted and lifted at a predetermined location is provided at opposite ends of the balance.
The self-aligning balance described. 5. A lifting device for lifting a suspended load, which is used between the lifting device and the suspended load to connect the lifting device and the suspended load via a connecting member. And a supporting member for supporting the hanging member, wherein the supporting member includes a pair of shaft-shaped members arranged in a cross shape, and the pair of shaft-shaped members includes the pair of shaft-shaped members. A cross angle adjusting member for adjusting a cross angle of the member; furthermore, a tilt angle detecting means for detecting a tilt angle of the balance with respect to the horizontal, and that the balance is horizontal based on a detection value from the tilt angle detecting means. And a control means for moving the position of the hanging member until the suspension is detected. 6. The self-aligning balance according to claim 5, wherein the movable hanging member has a mechanism for moving each hanging member on the supporting member.