JPH0152640B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a block structure in a heavy object installation device.

[Prior art and its issues] Generally, when installing machines weighing 200t to 600t (for example, thermal power plants, nuclear power plants, press machines in automobile factories and shipyards, etc.) in buildings, a machine with a lifting height of 3 to 6m is required. Cranes and gin poles were used, but these gin poles are tall, require four winches, and take up a lot of space, so there are many disadvantages in terms of competition with other work and the process.

In order to solve such problems,
A device for lifting heavy loads in stages has been proposed as shown in Japanese Patent No. 55052, but in this device, the jacking is provided by plate-shaped first and second jack supporting devices. Since this jack support device is manually inserted into the groove of the support structure, the operation is complicated, and there remains the problem that the plate-shaped jack support device has a limit in the load it can bear on heavy objects.

The present invention has been made in view of these circumstances, and it solves the conventional problems by using simple and rational means and devices, and it is short in height, eliminates the need for a winch, and saves space. The aim is to improve the efficiency of installation work, especially for heavy objects inside buildings.

[Means for Solving the Problems] The structure of the present invention that solves the problems of the prior art includes two sets of hollow supports 3a, 4a and 3 provided oppositely.
A beam member 6a for connecting and suspending heavy objects is provided between b and 4b.
6b can be raised and lowered as a bridge, and jacks 8 are respectively attached to the inner lower surfaces of the beam members 6a, 6b interposed in the opposing hollow pillars 3a, 4a and 3b, 4b, and further, the hollow pillars 3a, 3
Beam members 6a, 6b are placed in the vertical direction within b, 4a, 4b.
Beam side block 13a that can be entered and exited from the lower side of the outer end of the beam side block 13a.
are arranged independently in multiple stages, in particular in a staggered manner for each stage, and jack side blocks 13a that can be moved in and out of the lower surface of the jack 8 are arranged independently in multiple stages. This is a block structure in a heavy object installation device in which the beam side and jack side blocks 13a and 13b are respectively moved in and out in accordance with the jacking up or contraction action of the jack 8 to raise or lower the heavy object. Then, the beam side and jack side blocks 13a, 1
3b is a hollow box shape, and both blocks 13
a, 13b are divided into four chambers 16 in the longitudinal direction, that is, two chambers 16 in the front and rear directions, and each chamber 16 accommodates a wheel 17 facing the same direction. The lower part of the wheel 17 is placed on the beam side,
The guide rods 20 in the chamber 16 are inserted into and out of the long holes 18 provided in the bottom plates of the jack side blocks 13a and 13b, and are inserted into the lower part of the guide rods 20 vertically disposed on the shaft support frames 19 of the wheels 17. A lower plate 21 that is prevented from rotating is provided, and the guide rod 20
Four pieces whose upper ends penetrate the upper plate 22 provided at the upper part of each chamber 16 with a retaining structure, and which penetrate the guide rod 20 of each chamber 16 between the upper and lower plates 21 and 22. A spiral spring 24 having a total elasticity greater than the respective weights of the beam-side and jack-side blocks 13a and 13b is provided, and further,
Two parallel guide grooves 25 are formed on the upper surfaces of the beam-side and jack-side blocks 13a, 13b for intervening rolling of the wheels 17 provided on the upper block, and the upper surfaces of both blocks 13a, 13b At the center and at the center of the lower surface, there are a recess 13c and a protrusion 13d that fit into each other in the upper and lower rows.
It is characterized by having the following.

[Example] Next, details of an example of the present invention will be described with reference to the drawings.

As shown in Figures 1 and 2, a pair of hollow supports 3a, 3b and 4a, 4b are installed at a required interval so as to surround a predetermined installation location of heavy objects 2 on a foundation 1. The hollow supports 3a, 3b and 4a, 4b are connected by a connecting member 5 or the like. A window 7 is provided in the vertical direction at the center of the opposing surfaces of the opposing columns 3a, 3b and 4a, 4b, into which both ends of the beam members 6a, 6b are inserted. The ends of the beam members 6a, 6b, that is, the hollow support columns 3a,
A jack 8 is attached to the lower surface of one end inserted into 3b, 4a, and 4b, respectively.

Moreover, as is clear from FIGS. 3 to 5, each of the hollow supports 3a, 3b, 4a, 4b is connected to the beam member 6.
A partition wall 9 is provided in a direction perpendicular to the longitudinal axis direction of a and 6b.
It is divided into two rooms 10a and 10b, inner and outer.
A window 11 corresponding to the window 7 is formed in the center vertical direction of the partition wall 9, and a jack 8 attached to the lower surface of the beams 6a, 6b is inserted into one of the inner chambers 10b. Furthermore, the outer ends of the beams 6a and 6b are inserted into the other outer chamber 10a.

Then, on the left and right sides of each of the inner and outer chambers 10a and 10b excluding the intervening parts of the beams 6a and 6b, there are inner and outer small chambers 12 that house blocks having a certain height.
a and 12b are provided in a left-right staggered manner, and a beam side block 13a is movably accommodated in one outer small chamber 12a, and a jack side block 13b is movably housed in the other inner small chamber 12b.

Although not shown, each inner and outer small chamber 12a, 12
The beam-side and jack-side partition blocks 13a, 13b housed therein are attached to the outside wall of b.
A working machine such as a cylinder for moving in and out is attached to the lower surface of the outer end block b and the lower face of the jack 8, but it is also possible to omit the installation of these working machines and manually operate the blocks 13a and 13b in and out. In the figure, reference numerals 14 and 15 are the perpendicular walls of the blocks 13a and 13b on the beam side and the jack side, respectively.

Next, the structure of the beam side and jack side blocks 13a and 13b will be explained with reference to FIGS. 6 and 7. The beam side and jack side blocks 13a,
13b is a hollow box shape, and each of the blocks 13a and 13b on the beam side and the jack side are four in the vertical direction,
That is, it is divided into two chambers 16 in the front, rear, left and right directions, and each chamber 16 accommodates a wheel 17 facing the same direction.
The lower part is the beam side, the jack side blocks 13a, 13
It is designed to enter and exit from the outside through a long hole 18 provided in the bottom plate of b.

A lower plate 21, which is fixed in the chamber 16, is attached to the lower part of the guide rod 20 which is vertically installed on the upper side of the shaft support frame 19 of each wheel 17, and the upper end of the guide rod 20 is , is penetrated through the upper plate 22 provided at the upper part of the chamber 16, and the guide rod 2
A nut 23 that engages with the upper surface of the upper plate 22 to prevent it from coming off is screwed onto the upper end of the upper plate 22.

Between the upper and lower plates 21 and 22, four total elastic forces are applied to the beam side and jack side blocks 13.
A spiral spring 24, which is slightly larger than the weight of each of the elements a and 13b, is provided. Further, on the upper surfaces of the beam side and jack side blocks 13a and 13b, two parallel guide grooves 25 are provided for intervention of the rolling wheels 17 provided on the upper blocks. 26 in FIG. 2 is a base of the beam side block 13a facing the beam side. Note that there is a recess 13 in the center of the upper surface of both beam and jack side blocks 13a and 13b.
In addition, the recess 13 is provided at the center of the lower surface of the beam side and jack side blocks 13a, 13b.
A convex portion 13d is provided to fit into each of the blocks 13a and 13b on the stacked beam side and jack side, respectively, to prevent misalignment between the stacked blocks 13a and 13b on the jack side.

[Description of operation] Next, the operation will be explained based on the above embodiment.
The above embodiment is a first method for lifting a heavy object transported to an installation location using a transporting device such as a roller puller into a building, removing the transporting device, lowering it, and installing it. A second method for lowering an object to a low place and a third method for installing a heavy object at a low place at a high place can be implemented, and each of them will be explained next.

In the case of the first method, the heavy object 2 loaded on a transport device (not particularly shown) is transported to an installation location in the building, and the 4
The books are carried between the hollow pillars 3a, 3b, 4a, and 4b as shown in FIG. Next, after connecting and suspending the heavy object 2 with a wire rope 27 etc. to the two beams 6a and 6b that are bridged above the heavy object 2,
The jacks 8 are driven to raise the beams 6a and 6b by a stroke slightly larger than the height of the beam side block 13a, and the lower surfaces of the ends of the beams 6a and 6b are
A space is formed between the upper surface of the base 26 and the upper surface of the base 26. Then, in this space, the beam side block 13a housed in the outer small chamber 13a is moved lightly by the rolling of the wheels 17 using the guide groove 25 of the lower block as a guide, and this beam side block 13a is moved to the lower part of the beam sides 6a, 6b. to intervene.

Next, by contracting the jack 8, the beam material 6
a, 6b, and the total load of the heavy objects to be suspended is applied to the left and right beam side blocks 13a, and the convex portion 13 on the lower surface
d into the recess 13c of the lower block to connect them, and at the same time retract the wheel 17 against the spiral spring 24, and then connect the lower surface of the retracted jack 8 and the foundation 1, or the foundation 1. In the space formed between the stand provided above (not shown),
The jack side block 13b is intervened, and the jack 8 is driven again to apply the full load to the jack side block 13b. A space with a slightly higher stroke is formed, and the next beam side block 13a is inserted into this space in the manner described above. By repeating this operation several times, the heavy object suspended from the beams 6a, 6 is raised to a required height, and then the transport device is removed from below the heavy object 2.

Next, when the entire load is applied to the beam-side block 13a group, the jack 8 is driven to transfer the load on the beam-side block 13a to the jack-side block 13b group, and then the jack 8 is transferred to the jack-side block 13b group. 13a is returned to the outer chamber 12a, and then
After retracting the jack 8 and placing both ends of the beams 6a and 6b on the next beam-side block 13a and transferring the load to the beam-side block group, the free top jack-side block 13b is placed in the inner small chamber. Return to 13b.

Then, after driving the jack 8 again to separate the beams 6a and 6b from above the beam-side block 13a, the beam-side block 13a is moved from the outside small chamber 12a.
They will be returned and housed inside. By repeating this operation, the heavy object is installed on the foundation, and the hollow support 3a,
All work is completed by removing beams 3b, 4a, 4b and beams 6a, 6b. In this case, when the entire load is applied to the jack side block 13b group, the operation starts with the action of retracting the jack 8, and then the above-mentioned steps can be repeated alternately.

In the case of the second method, the beam material 6 is
With only a and 6b raised to a predetermined height,
After placing the heavy object 2 at a high place on a supporting member (not shown) such as an arm member and facing the lower side of the beam members 6a and 6b, use a wire rope or the like to After connecting and suspending the heavy objects 2 to beams 6a and 6b, and removing the arm members, etc., the heavy object 2 is loaded onto the foundation or onto a transport device that is placed on standby on the foundation using the above-mentioned lowering means. .

Next, in the case of the third method, after raising the heavy object to a predetermined height as described in the first method, the weight is placed on the underside of the heavy object 2 on a support member such as an arm. The object 2 is supported, and then the beam members 6a and 6b
After solving the connection relationship between heavy object 2 and heavy object 2,
It is moved laterally using the support section as a guide and installed on a support body (not shown). Then, the beams 6a and 6b are lowered in the manner described above, and the hollow support 3
It is to be removed and transported together with a, 3b, 4a, and 4b.

[Effects of the Invention] As described above, according to the present invention, the following effects can be obtained.

(a) Heavy objects of about 200 to 600 tons can be easily installed on foundations at high places, and furthermore, they can be moved down from high places relatively easily, and because they do not use gin poles, etc. Even if there is competition with the work, the work can be done in an extremely small amount of space, so any disadvantages in the process can be completely eliminated, and there is no need for a winch at all, and the weight can be moved close to the underside of the beam. It goes without saying that it is extremely suitable for the installation of heavy objects in buildings because objects can be hung there; (b) Beam side and jack side blocks 13a;
13b not only allows the wheels 17 to roll along the guide groove 25 of the lower block to move the block in and out accurately and easily when moving without a load, but also when a load is applied. , the wheel 17 intervenes in the block against the spiral spring 24, and the convex portion 13d provided at the center of the lower surface of the block engages with the recess 1 on the upper surface of the lower block.
3c to prevent lateral slippage and allow safe installation of heavy objects.

[Brief explanation of drawings]

Fig. 1 is a plan view, Fig. 2 is a partially cutaway front view, Fig. 3 is a partially cutaway front view of the main part, Fig. 4 is a partially cutaway side view of the same as above, and Fig. 5 is a partially cutaway front view of the main part of the same. 6 is a front view of the block, and FIG. 7 is a partially cutaway side view of the block. 1...Basic, 2...Heavy load, 3a, 3b, 4a, 4
b...Hollow pillar, 5...Joining member, 6a, 6b...Beam material, 7...Window, 8...Jacket, 13a...Beam side block, 13b...Jacket side block, 13c...Concave part, 13d...Convex part, 16...Chamber , 17...Wheel, 18
...Elongated hole, 19...Shaft support frame, 20...Guide rod, 21...
Lower plate, 22... Upper plate, 23... Nut, 24... Spiral spring, 25... Guide groove.

Claims (1)

[Claims] 1. Two pairs of hollow supports 3a, 4a provided oppositely.
and between 3b and 4b, a beam member 6 for connecting and suspending heavy objects.
A and 6b are bridged so that they can be raised and lowered, and jacks 8 are installed on the inner lower surfaces of the beams 6a and 6b that are inserted into the opposing hollow supports 3a and 4a and 3b and 4b.
and furthermore, the hollow supports 3a, 3
Beam members 6a, 6b are placed in the vertical direction within b, 4a, 4b.
Beam side blocks 13a that can be moved in and out of the lower side of the jack 8 are arranged independently in multiple stages, and in a staggered manner for each level, and jack side blocks 13a that can be moved in and out of the lower surface of the jack 8. are arranged independently in multiple stages, and the beam side and jack side blocks 13a and 13b are moved in and out, respectively, in accordance with the jacking up or shrinking action of the jack 8, so that the heavy object can be raised or lowered. A block structure in a heavy object installation device made of
b is a hollow box shape, and both blocks 13
a, 13b are divided into four chambers 16 in the longitudinal direction, that is, two chambers 16 in the front and rear directions, and each chamber 16 accommodates a wheel 17 facing the same direction. The lower part of the wheel 17 is placed on the beam side,
The jack side blocks 13a, 13b are fitted into the slots 18 provided in the bottom plate so as to be able to go in and out from the outside, and are further inserted into the chamber 16 at the lower part of the guide rod 20 vertically disposed on the shaft support frame 19 of each wheel 17. A lower plate 21 that is prevented from rotating is provided, and the guide rod 20
Four pieces whose upper ends penetrate the upper plate 22 provided at the upper part of each chamber 16 with a retaining structure, and which penetrate the guide rod 20 of each chamber 16 between the upper and lower plates 21 and 22. A spiral spring 24 having a total elasticity greater than the respective weights of the beam-side and jack-side blocks 13a and 13b is provided, and further,
On the upper surfaces of the beam side and jack side blocks 13a and 13b, two parallel guide grooves 25 are formed for the intervention and rolling of the wheels 17 provided on the upper block, and at the center of the upper surfaces of both blocks 13a and 13b. , and a block structure for a heavy object installation device, characterized in that a recess 13c and a protrusion 13d are provided at the center of the lower surface, respectively, to fit into each other in the upper and lower stages.