JPS6026911B2 - Silo construction equipment - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> When constructing a double structure silo with inner cylindrical steel plates and outer concrete, the present invention involves the process of lowering unit cylindrical steel plates and pouring concrete on the outside. This invention relates to a silo construction device that repeats upwards, and in particular, the construction is carried out by installing bolts as a shield between a prefabricated cylindrical steel plate and concrete, and autonomously expanding and contracting the bolts as steps, in which case, This invention relates to a silo construction device in which stages provided inside and outside are accurately matched to the bolts.

<Prior art> As is well known, many silos have been constructed for grain tanks, hay storage tanks, etc., but there are generally two types: iron plate silos and concrete silos, which have different characteristics such as airtightness, heat insulation, and strength. Each of them had advantages and disadvantages in terms of cost, etc.

Therefore, in recent years, silos have been devised and constructed in which the inside is made of cylindrical steel plates to ensure airtightness and reinforcement function, and the outside is poured with concrete to provide strength and reduce maintenance costs. It has become.

However, since the seed silo is based on relatively new technology, there are various problems in its construction method.

One of these problems is to use the inner cylindrical steel plate as the inner formwork and set up the outer formwork in order to increase construction efficiency and accuracy, and at the same time, it is necessary to sequentially slide the construction stage inside and out. A construction method has been devised to improve the accuracy of the construction, but there are problems with its accuracy and obstructions in the steel plates used for construction. Ta. <Problems to be Solved by the Invention> The purpose of this invention is to solve the problems of constructing a silo with a steel plate on the inside and concrete on the outside based on the above-mentioned follow-up technology, and to solve the problem of constructing a silo with a steel plate on the inside and concrete on the outside. A support is provided for raising the stage, a suspension shell is provided on the support to lift and move the inner stage and the outer stage, and a fine adjustment mechanism is provided for each mechanical part to ensure accurate slide-up. It is also an object of the present invention to provide an excellent silo construction device which is useful in the field of use of large tanks in the construction industry by moving the hanging tools laterally to facilitate the erection of steel plates.

<Means and operations for solving the problems> In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned claims, is to crane a unit cylindrical iron plate on the foundation. Fix the inner and outer stages to the cylindrical steel plate after pouring concrete and curing the lower stage of the cylindrical steel plate through bolts to the long nuts and iron cones embedded in the concrete, and then fix the inner and outer stages to the inner stage. The support is raised by one step of concrete pouring, finely adjusted to correspond to the fixing position of the upper cylindrical steel plate relative to the stage, the support is fixed to the steel plate, and then horizontally installed on the support. The inner and outer stages, which were released from the concrete and cylindrical steel plate by the hanging tool that was raised one step along with the support, were raised one step, finely adjusted to the upper fixed position, and fixed in position, and the inner stage was lifted up. The formwork of the outer stage is advanced at a predetermined interval, and concrete is poured between the cylindrical steel plate and the formwork.
A technical measure is taken in which the formwork is replaced, the support column is raised one step again, and the cycle is repeated to construct a silo body made of inner steel plates and outer concrete to a predetermined height.

Embodiment - Configuration> Next, one embodiment of the present invention will be described below based on the drawings.

As shown in Figures 1 and 2, a ring-shaped inner stage A located inside the wall 1 of the silo body to be constructed and substantially close to the wall 1 is constituted by four frames from the bottom. , on the other hand, there are eight outer stages B adjacent to each other on the outside of the wall 1,
Similarly, each of B... is configured in four stages from the bottom.

As shown in FIG. 2, the inner stage A is formally divided into four units around the support 2 in all directions, and each unit is connected by appropriate means.

As shown in FIG. 3, each unit of the divided inner stage A has a frame 4 roughly fixed in three dimensions around the hollow stage pillar 3 at the front. Each work classification stage F,,B,,B2,B3
are provided from the top to the bottom.

The support column 2 is inserted through the upper and lower ends of the hollow stage column 3, and a chain 7 is interposed between the lower bracket 5 and the hand sardine chain block 6 installed on the work division stage B. On the other hand, a fixing bracket 9 for fixing the cylindrical iron plate 8 of the wall 1 is fixed at the upper part of the work division stage B, and a bracket 9 for fixing the cylindrical iron plate 8 of the wall 1 is fixed at the upper end of the wall 1 of the silo body. A hanging tool 10 installed horizontally along the diameter is fixed in a manner that can be disassembled, and an electric chain block 11 is provided on the inner lower surface of the hanging tool 10, and the chain 12 is connected to the work division stage F. Inner stage A
is hanging.

As shown in FIGS. 3 and 12, a sub-hanger 13 is provided inside the sea bream material of the XIO so as to be slidable by loaves 14 and 15 toward the outside, and a rack 1 disposed in the upper axial direction is provided.
6 extends above the slit on the upper surface of the ball material of the hanging tool 10 and meshes with a pinion 18 provided on the rotating shaft of a reversible motor 17 provided on the hanging tool 101. An electric chain block 19 is provided below the tip, and its chain 20 is connected to the frame 21 of the outer stage B to suspend the outer stage B.

In addition, the reversible motor 17, pinion 18, rack 11,
The rollers 14 and 15 constitute a lateral displacement mechanism. Depending on the design, it is also possible to make the length of the hanging tool 10 constant and make it pivotable around the support 2 using an appropriate mechanism so that its tip does not interfere with the erection of the iron plate 8. .

The frame 21 of the outer stage B has work division stages F, , B, &, B3 formed from top to bottom to correspond to the inner stage A.

Further, a guide roller 22 is provided inside the lower end of the frame 21, and as shown in FIG.
A vertical rod 26 is disposed on the bracket 23, and the lower part thereof is connected to an adjustment bolt 28 as a vertical adjustment mechanism with respect to the upper bottom 27 of the bracket 23.
A form adjustment bolt 29 is interposed between the outer flange 24 and the inner flange 25, and a return spring 30 is interposed between the inner flange 25 and the outer flange 24.

Note that 31 is a fixing bolt, which fixes the bracket 23, that is, the outer stage B, to an iron cone 33 buried in concrete 32 cast on the outer surface of the cylindrical iron plate 8 via the outer flange 25. It is like that.

Further, 34 is a bulge, which is provided on the inner surface of the vertical bar 26 and has a formwork 3 for the concrete 32 on its inner surface.
5 is fixed.

Next, in FIG. 10, a belly raiser 36 is attached to a vertical bar 37 facing the formwork 35 and facing the cylindrical iron plate 8.
The steel plate 8 that serves as the inner formwork for the concrete 32 constitutes a supporting frame, and the placket 38 fixed to the lower part of the shaft 37 is attached to the third,
As shown in FIG. 10, the bracket 40 is fixed to the frame 4, and is connected to the screw advancing/retracting device 41 of the bracket 40, so that it can be moved forward and backward, and furthermore, the vertical bar 37 is It is configured to be fixed to the iron cone 33 via the bellows 36 via a separator 42 to a long nut 43 embedded in the concrete 32 on the outer surface of the cylindrical iron plate 8 with a fixing bolt 44.

Further, as shown in FIG. 3, a guide roller 46 is provided in front of the lower end of the frame 4 of the inner stage A so as to come into contact with a cylindrical iron plate 8 via a return spring 45, and a hollow stage column 3 A fixing bracket 47 is fixed to the lower part of the bracket 47, and as shown in FIG. A washer bracket 52 having a hole 51 in which a vertical nut 50 is loosely inserted is provided opposite to the loose hole 49, and can be adjusted vertically by an adjustment screw 53 screwed into a screw hole on the upper surface of the bracket 47. The fixing bolt 54 is screwed into the tightening nut 50, passes through the loose hole 49, and is screwed onto the long nut 43 without damaging the threads, and connects the inner stage A to the cylindrical iron plate 8 and the concrete 32. to support.

Incidentally, as shown by the reference numerals in FIG. 11, the fixing bracket 9 of the support column 2 has substantially the same structure as the above-mentioned bracket 47 (however, it is attached and fixed by the iron plate 8 and the iron plate 8).
(This is for a long nut 43 that has been made into a weld nut.)

Further, on both outer sides of the upper end of the hollow stage column 3, fourth, fifth, and sixth
As shown in the figure, a pair of reaction force receiving brackets 55, 55 are provided, and within these boxes 56, a hanging ring 59 is integrally fixed and suspended from a fine adjustment screw 58 from an upper base 57.
, 59, the pin 60 is inserted into the support column 2 every one step.
A free iron is inserted into elongated holes 61, 61 bored in the.

The adjustment screw 58, hanging ring 59, and pin 60 constitute a fine adjustment mechanism in the vertical direction.

Embodiment - Effect> In the above-described configuration, the wall 1 of the silo body at the stage where the construction of the foundation (not shown) and the construction of the double structure to a predetermined height are completed.
A unit cylindrical steel plate 8 with stud dowels or single reinforcement is placed on the top of the wall using an appropriate means such as a crane, and the lower steel plate is welded and sealed to form the wall 1, as shown in FIGS.
Inner and outer stages A and B are arranged inside and outside.

That is, in the initial setting, the placket 47 of the hollow stage column 3 is fixed to the long nut 43 of the cylindrical iron plate 8 by the bolt 54 in the work division stage &, and the stages B2, B
, the bracket 38 is advanced with respect to the bracket 40 by the screw advancing/retracting device 41, and the vertical member 37 is fixed to the cylindrical iron plate 8 via the bellows 36 with bolts 44 to serve as a supporting frame;
The fixing bracket 9 of the support column 2 is fixed to the uppermost iron plate 8 with bolts 54 and long nuts 43.

On the other hand, the outer stage B has the bracket 23 in contact with the concrete 32, and the vertical bar 26 is fixed by adjusting bolts 28 and 29.
The bolts 31 are passed through the holes in the flange 2 of the bracket 23, and the iron cone 33 is attached to the formwork 35.
are placed parallel to each other in a predetermined space and opposed to a cylindrical iron plate 8, and concrete 32 is placed between the formwork 35 and the cylindrical iron plate 8 from above.

Therefore, as shown in FIGS. 9 and 10, the sub-concrete joint with the existing concrete 32 is located above the lower end of the formwork 35.

Next, the motor 17 of the hanging tool 10 is driven to drive the pinion 18.
, store the sub-hanging odor 13 on the rack 16 in the ball material of the hanging tool 10 (thus, remove the chain 201), insert the next cylindrical iron plate 8 as described above, and proceed to the work classification stage F.
, the upper part is welded and sealed all around with the lower cylindrical iron plate 8.

When this is completed, remove the bracket 9 of the column 3 from the long nut 43 of the cylindrical iron plate 8 by disengaging the bolt 64, and loosen the bolt 54 of the lower fixing bracket 47 of the hollow stage column 3 slightly while making sure that it is fully supported. Also, the screw advancement/retraction device 41 of the bracket 40 is slightly pushed forward to allow the hollow stage column 3 to incline slightly inward to the cylindrical iron plate 8 of the bracket 9 of the column 2. 8
Prevent sliding heating from occurring.

Then, with the preparation completed, the work classification stage &
At this point, the manual chain lock 6 is operated to raise the column 2 by one step using the hollow stage column 3 as a guide.

In this process, the loose hole 49 of the bracket 9 of the support 2 with respect to the cylindrical iron plate 8 is visible on the work division stage F, so that the work division stage F, . You can adjust the response appropriately with &.

However, since it is generally difficult to finely adjust the raising of the chain block 6, the loose hole 49 of the bracket 9
When the pin 60 is inserted through the long holes 61, 61 of the support column 2 shown in FIG. 2, as shown in FIGS. 7a and 7b, the innermost hole 61,
It is supported by the hollow stage column 3 via the upper end of the stage 61, the pin 60, the lower end of the hanging ring 59, the adjustment screw 58, the upper base 57, and the bracket 55.

Therefore, by adjusting the rotation of the adjustment screw 58 and moving the hanging ring 59 up and down by a minute amount, the pin 6 is moved by △h.
0, that is, by adjusting the bracket 9, the loose hole 49 of the bracket 9 and the long nut 43 can be accurately positioned on the work division stage F.

Therefore, after the positioning is completed, the bracket 9 is temporarily fixed to the long nut 43 via the bolt 54, the bolt 44 of the vertical piece 37 is removed, and the vertical piece 37 and the belly riser 36 are moved into a cylindrical shape via the bracket 38 by the screw advancing/retracting device 41. The bolts 54 are fully tightened to fix the column 2 to the cylindrical steel plate 8, and then the bolts 54 of the bracket 47 of the hollow stage column 3 are tightened with the long nuts 43. As a result, the inner stage A is retracted by the return spring 45, and the placket 47 is slightly separated from the iron plate 8 in a non-sliding saddle state, and the pins 60'
As shown in Figure b, the inner stage A is suspended from the support 2.

In addition, as shown in FIG. 11, the bolt 54 is fitted with a vertical nut 50.
Since the loose hole 49 is inserted into the bracket 9 through the hole 49, the screw thread will not be damaged.

Meanwhile, the pinion 18 and rack 1 are moved by the reversible motor 17.
The sub-hanger 13 is extended outwardly through the electric chain block 1
9, connect the chain 20 to the frame 21 of the outer stage B from bottom to top in a slightly oblique manner outward, and then remove the upper and lower bolts 31 from the iron cone 33, and then tighten the adjustment bolts 28 and 29. Loosen and return spring 3 Koyori Kawa Tateko 26, belly okoshi 34, formwork 35 are solidified concrete 3
Move away from 2. Therefore, because the chain 20 is slightly inclined outwardly from below to above as described above, and because the guide roller 22 is provided at the lower end of the frame 21, the bracket 23 is not in sliding contact with the surface of the concrete 32. becomes.

In this state, the pin 60 is removed and the electric chain locks 11 and 19 are activated all at once from a control room (not shown).

Thus, the inner stage A is suspended by the chain 12, and by winding up the chain 12 for one step, the hollow stage column 3 guides the column 2 and ascends.
The electric chain block 11 is stopped at the position where the hole 49 of the bracket 47 matches the long nut 43.

However, as described above, the positioning by the electric chain block 11 cannot be determined, so when the pin 60 is inserted in that state and the electric chain block 11 is loosened, the positions 4 and 8a are
, 8b, the reaction force support for the hollow stage column 3 of the work division stage A against the column 2 includes a bracket 55, an upper base 57, an adjustment screw 58, a hanging ring 59, a pin 60, and the lower end of the elongated hole 61 of the column 2. It will be done through.

Therefore, in the same manner as described above, by rotating the adjustment screw 58, the bracket 55, that is, the hollow stage column 3, can be moved up and down by Δh2 for fine adjustment. It is possible to match the

By the way, the above positioning cannot always be performed reliably because the adjustment screw operation of the bracket 55 on the work division stage F is made to correspond to the self-viewing on the work division stage. Therefore, as shown in FIG. 11, as a secondary adjustment, the washer bracket 52 is moved up and down relative to the bracket 47 by rotating the adjustment screw 53 to perform fine adjustment, and the tightening nut 50 and the long nut 43 are precisely adjusted. Position it, fix it with bolts 54, and attach it to the inner stage A.
Then, the bracket 38 is advanced through the screw advancing/retracting device 41, the belly raising 36 is supported by the cylindrical iron plate 8 by the vertical bar 37, and the bolt 44 is inserted into the automatically positioned hole. and tighten the welded long nuts 43 to fix each belly raiser 36 to the cylindrical iron plate 8.

On the other hand, the outer stage B, which has been raised one step by the electric chain lock 19, is moved to the work division stage B after confirming that the position of the elongated hole in the inner flange 25 of the bracket 23 approximately corresponds to the iron cone 33. bolt 3
1 and fix the outer stage B to the concrete 32.

After fixing, the chain 20 is removed as described above in order to insert the next stage cylindrical iron plate 8, so the load of the outer stage B is applied to the bolt 31 via the bracket 2'3. , a cylindrical iron plate 8 together with the pillar 2 of the inner stage A
The load applied to the inner flange 25 is different from the case of supporting the equivalent weight of the lifting tool 10, the sub-hanging tool 13, the electric chain blocks 11, 19, etc., and the load is light. A boss nut support is sufficient, but depending on the design, a washer placket 52 and a tightening nut 50 may be interposed as shown in FIG. 11.

After fixing the concrete 32 of the outer stage B through the bracket 23, the vertical bar 2 is fixed with the adjusting screw 29.
6 to the cylindrical iron plate 8 against the return spring 30 and set them opposite to each other at a set distance, and then turn the adjusting screw 28 to adjust the vertical movement of the vertical rod 26 to move the vertical rod 26 toward the cylindrical iron plate 8. Work division stage B so that the mounting screw hole of the inner flange 25 of the bracket 23 is precisely aligned with the upper long nut 43.
In this state, the vertical bar 26 and the formwork 35 are fixed in a predetermined position with the bolts 33 through the separator 42 and the iron cone 33, and the concrete 32 is placed between the cylindrical iron plate 8 and the formwork 35. The concrete is poured from the top and allowed to cure.

One cycle is completed as described above, and the chain 20 is removed again as described above, the motor 17 is started, the sub-hanger 13 is retreated inside the cylindrical iron plate 8, and a new upper unit cylindrical iron plate 8 is installed. is lowered by a crane or the like, welded and sealed with the lower cylindrical iron plate 8, and the above cycle is repeated to construct the wall 1 of the silo main body of a predetermined height.

In addition, on the top stage, after work, the medial and lateral stages A and B are
Alternatively, first, only the outer stage B is lowered by the electric chain lock 19, and the column 2, the hanging tool 10, the sub-hanger 13, and the inner stage A are moved by the opposite relative expansion and contraction operation. You can descend with

<Effects of the Invention> According to the present invention, in an apparatus for constructing an outer concrete double-structure silo with an inner cylindrical steel plate, the inner stage basically supports the support column through the relative expansion/contraction mechanism. The inner stage and the outer stage are suspended by a hanging tool installed horizontally on the support, so that the support supports the inner stage through the cylindrical steel plate and receives a reaction force from the inner stage. It is possible to raise the stage in steps, or conversely, it is possible to raise the inner stage by one step by fixing the support to the steel plate.In addition, it is possible to raise the inner and outer stages by one step using the above-mentioned lifting tools. This has the effect that the silo wall can be constructed by automatic vertical expansion and contraction, except for the iron material and concrete pouring.

Furthermore, a vertical fine adjustment mechanism is interposed in at least one of the above-mentioned pillars, the wall engagement brackets of the inner and outer stages, and the brackets for engaging the inner stage and the pillars, so that the cylindrical The long nuts to be welded to the shaped iron plate are set at a constant pitch, and the iron cones are also set at a constant pitch.As a result, the above-mentioned pillars and the inner stage can be reliably positioned when stepping up.
Further, the outer formwork for installing the iron cone can be lifted up accurately, and the step span of the inner stage can be reliably secured.

Furthermore, since the hanging tool has a lateral displacement mechanism, it is possible to displace the hanging tool inward only when the unit cylindrical iron plate is being erected. The effect is that it is possible to step up the inner and outer stages after the inner and outer stages are inserted. If the stage separates from the wall due to the expansion and contraction of the hanging odor, it will cause an upset, and the formwork will not come into contact with the cylindrical steel plate or concrete surface, but will separate, and therefore, when stepping up, they will be left in a state of no printing. This has the effect of not causing damage to the wall surface due to rising, or preventing the dirt from falling off or getting caught between the stage and the motors, causing overload and seizure.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a perspective view of the silo construction and its direct arrangement, Fig. 2 is a plan view of the same, Fig. 3 is a partial longitudinal sectional view, and Fig. 4 is a diagram showing the stage pillars. A vertical sectional view of the strut hook, FIG. 5 is a sectional view taken along line V-V in FIG. 4, FIG. 6 is a sectional view taken along line W- in FIG. Cross-sectional view, Figure 9 is a cross-sectional view of the outer stage fixed, 1st
Figure 0 is a cross-sectional view explaining the inner stage belly raising operation, Figure 11 is a cross-sectional view explaining the inner stage wall fixing, and Figure 12 is the third
This is a cross-sectional view of Ichiryu Kitsune. 8... Cylindrical iron plate, 32... Concrete,
A... Inner stage, 3... Stage pillar, 50...
Upper end, 47... Placket, 1... Wall body, 2.
...... Support column, 58, 59, 60... Vertical fine adjustment mechanism, B... Outer stage, 35... Formwork, 36, 37... Support frame, 10, 13...
Hanging tool, 14, 15, 16, 17, 18... Lateral displacement mechanism, 13... Sub-hanging tool. Figure 1 Figure 2 Figure 12 Figure 3 Blind diagram Figure 5 Figure 6 Figure 7o Figure 70 Figure 80 Figure 80 Figure 9 Figure 10 Figure 11

Claims (1)

[Claims] 1 In a silo construction device that has a composite wall body that integrally combines a cylindrical steel plate on the inner side and concrete on the outer side, the inner construction stage placed inside the cylindrical steel plate is a cylindrical steel plate. The stage pillar has a hollow stage pillar on the side, which is supported by the existing part of the wall through a bracket at the lower end of the stage pillar, and inside the stage pillar, the upper end of the stage pillar can be mutually engaged and detachable, and the lower end bracket is attached to the stage pillar. The pillars supported by the existing part of the wall are slidably inserted vertically through the vertical fine adjustment mechanism, while the outer stage for construction installed outside the cylindrical steel plate is inserted into the concrete. The inner stage faces the cylindrical steel plate and supports the supporting frame of the steel plate so that it can move forward and backward, and the inner stage is suspended from a hanging tool installed horizontally at the upper end of the support column. , and a silo construction apparatus characterized in that the outer stage is suspended from a sub-hanger provided via a lateral displacement mechanism slidably provided on the hanger.