JPS59213871A - Iron tower pushing-out apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates particularly to a steel tower raising device.

We assemble steel towers above ground, always responding to the varying dimensions between steel tower plates depending on the two types of tower sizes.

To provide a steel tower hoisting device which enables raising and safely performs hoisting work by absorbing a lifting load caused by a horizontal lateral load acting on the upper part of the steel tower even if it is applied to any leg of the steel tower.

The dimensions between the plates of a steel tower vary depending on the size of the tower. Therefore, conventional steel tower raising devices are designed and manufactured on a case-by-case basis within a range that corresponds to changes in the inter-plate dimensions of the relevant steel tower. Therefore, naturally,
It lacks versatility and cannot be used if the size of the steel tower is different. Furthermore, conventional steel tower raising devices mainly focus on vertical loads when raising steel towers, and do not take horizontal lateral loads into account. Therefore, if the lifting load based on the overturning moment due to the horizontal lateral stack exceeds the vertical load due to the tower or overhead wire at the anchorage point of each main leg member of the tower, the tower and the tower hoisting device will become unstable. 2. There is even a risk of falling.

This invention was made by focusing on the problems of the prior art, and it is possible to adjust the separation distance of four sets of power transmission frames in the directions of two orthogonal axes by using two telescopic steel tower pulling beams and two
This is done by adjusting the steel tower mounting beams of the set, and also slides the tower mounting beam and tower main leg material gripping means in response to changes in the plate-to-plate dimensions of the steel tower main leg materials, and adjusts the lifting load to the tower. The purpose is to solve the above problems by absorbing the load with a load cylinder connected to one end of the upper beam via a wire rope and sheave.

The present invention will be explained below based on the drawings.

FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention.

Reference numeral 1 denotes a stamping frame, and four sets of the frames are arranged outside the four corners of the steel tower A' to be assembled. The stamping frame 1 supports various loads (vertical loads, horizontal lateral loads) acting on the steel tower A' to be assembled. The driving mold frame 1 is composed of a driving mold main pillar 11 and a fixing truss support 12 that is fixed in two axial directions perpendicular to the upper part of the driving mold main pillar 11 (in the direction of the railway line and in the direction perpendicular to the railway line). .

The main column 11 is constructed of a pair of IJ sections 11B that are erected in parallel on a plate 11A at regular intervals, and is fixed to the foundation B' via plates 11Ak.

The fixing truss support 12 is a steel pipe and is a bracket 11C installed on the H-shaped steel 11B! and a bracket fixed to the foundation B') 11D.

A cylindrical hydraulic jack 16 for pulling down the steel tower is attached to the upper part of the main column 11, and a threaded tension rod 14 is inserted into the two cylindrical hydraulic jacks 16.

The upper part of the threaded tension rod 14 is supported by an upper nut support pedestal 15 attached to the upper part of the ram 13A of the two cylindrical hydraulic jacks 16, and the upper nut is rotated by the operation of the upper hydraulic motor 15A. It is screwed onto 15B. The intermediate portion of the threaded tension rod 14 is supported by an intermediate nut support pedestal 16 attached to the lower part of the cylinder 13B of a cylindrical hydraulic jack 16, and is rotated by the operation of an intermediate hydraulic motor 16A. It is screwed onto the intermediate nut 16B (see Figure 3).

Upper hydraulic motor 15A (or intermediate hydraulic motor 16A)
operation and upper oak) 15B (or middle oak l-16B)
) is linked to the rotation by a belt.

This is done via a roller chain, etc.

Threaded tension rod 14B, upper nut 115B,
The upper nut support pedestal 15. It is supported by an intermediate nut support pedestal 16 and is raised and lowered by the operation of two cylindrical hydraulic jacks 16. Each of the cylindrical hydraulic jacks 16, the upper hydraulic motor 15A, and the intermediate hydraulic motor 16Ald are controlled synchronously by a single hydraulic control device (not shown).

In addition, the ram 13A rises and the thread cutting tension rod l
When the ram 514 rises, the intermediate nut 16B rotates downward, and when the ram 13A is replaced, the upper nut 16B rotates downward.
B rotates downward, and when the threaded tension rod 14 itself is lowered, the intermediate bolt 16B rotates upward.

2 is a telescopic steel tower pulling beam, two of which are threaded in parallel and a lower nut 21 is attached to the lower end of the tension rod 1?14.
has been fixed through. The tower lifting beam 2 consists of two box-shaped beams 26, one end of which is fixed to the lower end of the threaded tension rod 14 and the other end inserted into the connecting member 22, and one box-shaped beam. Connecting material 22 with shaped beam
It is composed of.

By adjusting the extension length of the fixing member 26 into the connecting member 22, the entire length of the tower pulling beam 2 can be adjusted as necessary.

By adjusting the tower pulling beam 2, the distance between the power transmission main pillars 11 in the longitudinal direction of the tower pulling beam 2 can be adjusted to the same size as the tower.

The main power pole 11 can be erected in accordance with the dimensions between the steel tower plates, which vary depending on the type.

On the upper surface of the portion of the fixing member 23 that is not inserted into the connecting member 22, several linear slide grooves 23A are provided in the longitudinal direction of the fixing member 26, in which the bolt head is accommodated and the bolt screw portion is projected. .

In addition, bolt holes 23B are provided at regular intervals on the upper and lower surfaces of the portion of the s+ikl constant material 26 that is inserted into the connection material 22.
are bored in parallel in the longitudinal direction of the identification material 26.

The load acting on the steel tower pulling beam 2 is dominated by the bending moment due to the compressive load and the lifting load transmitted from the main leg member of the steel tower A' to be assembled.

This bending moment is safely supported by the interaction of the lever reaction force generated between the upper and lower surfaces of the fixing member 26 inside the connecting member 22 and the upper and lower surfaces inside the connecting member 22. For this,
As shown in Figure 4.

A reinforcing rib 22A for compressive load is provided on the external upper surface of the connecting member 22.
, reinforcing ribs 22B for lifting loads are provided, and reinforcing ribs 22C2 for compressive loads are provided on the outer lower surface of the connecting member 22.
A reinforcing rib 22I for lifting loads is provided, and a lever reaction force support 22E for lifting loads is provided on the inner upper surface of the connecting member 22, and a lever reaction force for compressive loads is provided on the lower inner surface of the connecting member 22. A support stand 221- is provided. still.

Since the tower lifting beam 2 receives a load in the longitudinal direction due to the horizontal force transmitted from the main leg member of the steel tower A' to be assembled, the beam size must be such that it corresponds to this load and maintains the overall length of the tower lifting beam 2. Fixing metal fittings 24 are detachably attached to the upper and lower surfaces of the fixing member 26. Beam dimension fixing fitting 2
A part of 4 has bolts 25 and nuts 2 on the upper and lower surfaces of the connecting member 22.
6, and the other part of the beam dimension fixing fitting 24 is inserted into the connecting member 22. Silt7. It is fixed to the connecting member 22 and the fixing member 23 via a nut 28.

In addition, in Fig. 4, 22G is the upper surface slide 1 length)
', 22H)-j: Bottom slide guide.

Reference numeral 6 denotes a guide roller unit that rolls up and down on the main pole 11 and is fixed to the upper surface of the fixing member 23. By this guide roller unit B, the tower pulling beam 2
The horizontal force acting on the power supply frame 1 is transmitted to the power supply frame 1.

Reference numeral 4 denotes a telescopic tower mounting beam, of which two sets are attached at regular intervals to linear slices of the fixing material 26 of the tower pulling beam 2.
horizontally mounted on m23A, Pol)41. It is attached to the steel tower pulling beam 2 via a nut 42 so as to be slidable in the longitudinal direction of the steel tower pulling beam 2 (see FIG. 5). One set of tower attachment beams 4 includes two H-beam fixing members 44 whose one end is fixed to the tower pulling beam 2 and whose other end is inserted into a connecting member 46, and one box-shaped beam. Connecting members 46 are arranged in parallel at regular intervals.

By adjusting the insertion length of the fixing member 44 into the connecting member 46, the entire length of the tower attachment beam 4 can be adjusted as necessary.

By adjusting the tower attachment beam 4, the separation distance between the power transmission main pillars 11 in the longitudinal direction of the tower installation beam 4 can be adjusted, so that the power transmission main pillar can be adjusted to accommodate the varying dimensions between the tower plates depending on the size of the tower. The pillar 11 can be erected. Further, fine adjustment in the longitudinal direction of the tower pulling beam 2 after the power transmission main pillar 11 is erected can be made by sliding the tower attachment beam 4.

The load acting on the tower attachment beam 4 is the load acting on the tower lifting beam 2.
The structure of the fixing member 44 and the connecting member 43 is the same as that of the fixing member 26 of the tower pulling beam 2. It is the same as the connecting member 22, only having a different shape. Reference numeral 05 indicates tower main leg member gripping means, two of which are provided on one set of tower attachment beams 4. As shown in FIG. 6, the tower main leg member gripping means 5 is parallel to a linear slide groove 44A provided at a constant interval on the upper surface of the part of the fixing member 44 of the tower mounting beam 4 that is not inserted into the connecting member 46. A pair of upper inverted T-shaped pedestal fittings 51 are mounted horizontally on the tower mounting beam 4 and are attached to the tower mounting beam 4 via bolts 51A and nuts 51B so as to be slidable in the longitudinal direction of the tower mounting beam 4.
A linear slide groove 44A' provided on the lower surface of the part of the fixing member 44 that is not inserted into the connecting member 43 faces the upper inverted T-shaped pedestal fitting 51 and is horizontally suspended in parallel at a constant interval. A pair of lower T-shaped pedestal fittings 52 and an upper inverted T-shaped pedestal fitting 51 are attached to the tower attachment beam 4 and the tower pulling beam 2 so as to be slidable in the longitudinal direction via nuts 52B. upper edge plate 5
1C and perpendicular to the upper edge plate 51C, and an upper connecting metal fitting 56 provided on the upper edge plate 520 of the lower T-shaped pedestal metal fitting 52 and perpendicular to the upper edge plate 52C. A pair of upper connecting fittings 55 are attached in parallel with each other at regular intervals via nuts 55A and 55Bi, and a pair of upper connecting fittings 55 are connected to the lower connecting fittings 54 located on the outside, and to the upper and lower connecting fittings b5. 56A, oak) 56B so as to be rotatable in the longitudinal direction of the steel tower attachment beam 4, and a gripping rotating flat plate 56 that grips the main leg member 57 of the steel tower.

Upper inverted T-shaped pedestal fitting 51 or lower T-shaped pedestal fitting 5
The second steel tower attachment beam 4 is slid in the longitudinal direction by sliding the pole 51A or 52A in the linear slide groove 44A or 44A'. This slide allows the tower main leg member 5 to move in the longitudinal direction of the tower attachment beam 4.
Fine adjustment of the steel tower main leg member gripping means 5 can be made in response to the change in the plate bending width of 7.

In order to enable the lower T-shaped pedestal fitting b2 to slide in the longitudinal direction of the steel tower pulling beam 2, the lower T-shaped pedestal fitting 5 is installed.
The bolt hole 52B of the horizontal plate 52D of No. 2 is oval in the longitudinal direction of the steel tower pulling beam 2, and the lower connecting fitting 54
The bolt holes 54A and the lower bolt holes 550 of the upper and lower connecting fittings 55 are longitudinally oval. With this slide P, the inclination angle θ1 of the upper and lower connecting fittings 55 and the gripping rotating flat plate 56 can be adjusted.

In order to enable rotation of the grip rotation flat plate 56 in the longitudinal direction of the tower attachment beam 4, the plate 5 of the grip rotation flat plate 56 is
The melt holes provided at the four corners of 6C are arcuate ellipses. A plurality of bolt holes 56 are provided in the center of the plate 56C.
9. D is bored with an inclination angle θ2. Further, a fitting 56B that contacts one flange surface of the main leg member 57 of the steel tower is bolted. The main leg member 57 of the steel tower is firmly held by the rotating flat plate 56 by tightening bolts. Gripping rotating flat plate 56
By rotating, the inclination angle 02 can be adjusted. Inclination angle θ1. By adjusting θ2, changes in the rolling of the tower main leg member 57 can be accommodated.

6 is a telescopic upper fixed beam, four of which are fixed between the power transmission frames 1. The upper fixed beam 6 is composed of a fixing member 62, which is two steel pipes whose one end is fixed to the main pole 11 and whose other end is inserted into the connecting member 61, and a connecting member 61, which is one steel pipe. ing. By adjusting the insertion length of the fixing member 62 into the connecting member 61, the upper fixing beam 6
The overall length can be adjusted as needed. By connecting the upper parts of the four sets of power striking frames 1 with the upper fixed beam 6, the four sets of power striking frames 1 are firmly integrated, and the tower pulling beam 2 and the tower attaching beam 4 can be assembled.

This facilitates the disassembly work and the assembly work of the lower insertion block frame after raising the upper part of the steel tower A' to be assembled.

Fixing material 62. The structure of the connecting member 61 is that of the fixing member 26 of the steel tower pulling beam 2. IA is the same as the connecting member 22, but simply has a different shape.

7 is a load cylinder for pulling down the steel tower, and each power supply main pole 11
is attached to the top of the. As shown in FIG. 3, oil hoses 72 and 76 are connected to the upper and lower parts of the cylinder 71 of the load cylinder 7, and the supply of pressure oil to the cylinder 71 is controlled by a single hydraulic unit (not shown). has been done. In this way, the hydraulic unit operates so as to always generate a constant tower pulling load, regardless of the stroke position of the rod 74 of the load cylinder. rod 74
The lower end of the steel tower pulling beam 2 is connected to one end of the steel tower pulling beam 2 by a wire rope 76 via a sheave 75 fixed to the play 1-11A of the power transmission main pole 11. therefore.

As the tower pulling beam 2 rises, the rod 74 descends.

The steel tower pulling load T is set to a value that exceeds the maximum pulling load T' of the steel tower A' to be assembled due to the horizontal lateral load. Therefore, the steel tower to be assembled A/the means for grasping the main leg material of the steel tower from the upper part 5. The lifting load applied to one end of the tower pulling beam 2 via the tower attachment beam 4 is offset by the tower pulling load of the load cylinder 7. Therefore, one end of the tower lifting beam 2 will not be in the lifted state.

The capacity of the nine cylindrical hydraulic jacks 16 is determined by taking into consideration the vertical load due to the weight of the steel tower and overhead wire, the compressive load due to the horizontal lateral load, the weight of the steel tower pulling beam 2 and the steel tower acid beam 4, etc.

As explained above, the present invention provides a power transmission frame 4.
The separation distance in the two perpendicular axes of the set was adjusted by adjusting the two telescopic tower lifting beams and the two sets of tower mounting beams, and the distance between the plates of the main leg of the tower was also adjusted. The scale of the tower is adjusted by sliding the tower attachment beam and tower main leg member gripping means, and absorbing the lifting load with a load cylinder connected to one end of the tower lifting beam via a wire rope and sheave. 66K because it always corresponds to the dimensions between steel tower plates that vary widely depending on the type of steel tower.
It can be used to raise steel towers from V to 275KV, and the lifting load is offset by the tower pulling load.

The tower raising device did not become unstable.

The effect is that the raising work can be carried out safely.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of the present invention. Fig. 2 ViV is a rear omitted sectional view seen from the A-A plane in Fig. 1, Fig. 3 Vi is a partially enlarged view of the left part in Fig. 1, Fig. 4 is a BB sectional view in Fig. 2, Fig. 5 is a 0-C sectional view in Fig. 2, and Fig. 6 is a diagram showing details of the tower main leg member gripping means, (a) is a plan view, and (b) is a])-D of (a).
Sectional view (C) is a gg cross-sectional view of (a). 1... Power transmission frame, 11... Power transmission main pole, 12...
・Fixing truss support material, 16...Cylindrical two-way pressure jack. 14... Threaded tension rod, 2... Steel tower bow 1 upper beam, 6... Guide roller unit, 4...
Steel tower removal beam, 5... Steel tower main leg member gripping means, 6.
... Upper fixed beam, 7... Load cylinder, 75.
... Sheave, 76... Wire rope, 8'... Steel tower to be assembled. B'...Basic patent applicant Shagen Kaihatsu Co., Ltd. Kaihatsu Denki Co., Ltd. Nippon Denko Co., Ltd. Figure 6 (0) H. Figure 6(b)

Claims (1)

[Scope of Claims] 1. Four sets of die frames each consisting of a die main column and a fixing truss support that fixes the upper part of the die main column in two orthogonal axes directions are arranged outside the four corners of the steel tower to be assembled. death. Two telescopic steel tower pulling beams are fixed in parallel to the lower end of a threaded tension rod that moves up and down under the control of a hydraulic jack for lifting the steel tower attached to each of the main pillars,
Two sets of tower mounting beams, each of which is telescopic and has two tower main leg gripping means slidably attached thereto, are parallel to each other at a constant interval and are slidably slidable in the longitudinal direction of the tower pulling beams. I have so much time to spare for lifting beam 1...
A load cylinder for pulling down the steel tower, which always generates a constant pulling load for the steel tower regardless of the stroke device of the rod during the rising work, is attached to each of the main pillars of the driving mold, and a wire rope is attached to each of the main pillars of the driving mold. A steel tower raising device that connects one end of each tower pulling beam to the rod of each tower pulling load cylinder via a sheave provided at the lower end of a driving main column.