CN103669432B - A deflection correcting and jacking device for transmission towers in coal mine mining areas - Google Patents

Abstract

The invention discloses a deflection correcting device for a power transmission tower, in particular to a deflection correcting and lifting device for a power transmission tower in a coal mine mining area, which includes a concrete long column independent foundation (1), anchor bolts (3) and a liftable tower foot plate (4) ), the jacking tower foot plate (4) includes the bottom plate (6) and the main tower material connecting plate (8) welded on the bottom plate (6), the main tower material connecting plate (8) and the main tower material (5) along the edge Welding; the bottom plate (6) of the jacking tower foot plate (4) is connected to the independent foundation of the long concrete column (1) through the anchor bolts (3); the independent foundation of the long concrete column (1) is provided with a jack (2) The loading hole (7); the exposed thread length of the anchor bolt (3) shall not be less than 150mm. The structure of the structure is simple. When the transmission tower is tilted, loosen the anchor bolts (3), and use a jack to directly lift the tower foot plate to correct the deviation.

Description

A deflection correcting and jacking device for transmission towers in coal mine mining areas

technical field

The invention relates to a deflection correcting device for a power transmission tower, in particular to a deflection correcting and jacking device for a power transmission tower in a coal mine mining area.

Background technique

Due to the changes in the geological structure of the coal mine mining area, the transmission towers built in the mining area are prone to sinking and tilting to varying degrees, which poses a serious threat to the safe operation of the transmission line. The current way to solve this problem is to correct the deflection by modifying the tower structure or foundation after the transmission tower is tilted. This method requires a large amount of tools, complex site layout, and relatively large workload and labor intensity.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the present invention provides a deflection correcting and jacking device for power transmission towers in coal mine mining areas, which can rectify the deflection of inclined power transmission towers and ensure the safety of power transmission lines under the condition of convenient construction and less use of tools and appliances .

In order to achieve the above object, the technical solution adopted by the present invention is: a deflection correcting and lifting device for the transmission iron tower in the mining area of the coal mine, including the independent foundation of the concrete long column, the anchor bolts and the jacking tower foot plate; the jacking tower foot plate includes the bottom plate and the connecting plate of the main tower material welded on the bottom plate, the connecting plate of the main material of the iron tower is welded along the edge of the main material of the iron tower, the bottom plate of the lifting tower foot plate is connected with the independent foundation of the concrete long column through anchor bolts; the independent foundation of the concrete long column There is a loading hole where a jack can be placed; the length of the exposed thread of the anchor bolts is not less than 150mm.

Preferably, a stiffening plate is welded on the bottom plate, and the stiffening plate is vertically welded to the connecting plate of the main material of the iron tower.

Preferably, the loading hole is a cuboid structure.

Preferably, the size of the loading hole is not less than 150mm×200mm×300mm in width×length×height.

Preferably, the length of the exposed threads of the anchor bolts is 150mm-300mm.

In the present invention, during foundation construction, a loading hole for placing a jack is reserved, and a tower foot plate that can be lifted is installed at the same time as the iron tower is installed. When the iron tower is inclined, loosen the anchor bolts, put the jack in the loading hole, and use the jack to lift the tower foot plate, so that the deviation of the inclined transmission tower can be corrected safely, accurately and reliably; At the same time, loosen the anchor bolts, and use the jack to directly lift the tower foot plate to correct the deviation. It is convenient to continuously adjust the inclined iron tower, effectively reducing the inclination angle of the iron tower. The construction is convenient, and the tools used are few and reliable. High performance; can significantly reduce the additional stress generated by surface deformation on the transmission tower, so that the transmission tower can withstand the impact of coal mining, thereby ensuring the safety of the transmission line.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the A-A sectional schematic diagram of Fig. 1;

Fig. 3 is the top view of concrete long column independent foundation;

Fig. 4 is the left view of the concrete long column independent foundation.

In the figure: 1. Concrete long column independent foundation, 2. Jack, 3. Anchor bolts, 4. Liftable tower foot plate, 5. Main tower material, 6. Bottom plate, 7. Loading hole, 8. Main tower material connection Plate, 9, stiffening plate.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1 to 4: the present invention includes a concrete long column independent foundation 1, anchor bolts 3 and a jacking tower foot plate 4; the jacking tower foot plate 4 includes a bottom plate 6 and the iron tower main material welded on the bottom plate 6 Connecting plate 8, the connecting plate 8 of the main material of the iron tower is welded with the main material of the iron tower 5 along the edge, and the bottom plate 6 of the lifting tower foot plate 4 is connected with the independent foundation 1 of the long concrete column through the anchor bolt 3; There is a reserved loading hole 7 where the jack 2 can be placed; the length of the exposed thread of the anchor bolt 3 is not less than 150mm.

A stiffening plate 9 is welded on the bottom plate 6, and the stiffening plate 9 is vertically welded to the connecting plate 8 of the main material of the iron tower. Due to the setting of the stiffening plate 9, the bearing capacity of the device can be effectively improved.

In order to accommodate the jack 2 conveniently, the loading hole 7 is a cuboid structure.

In order to accommodate the jack 2, the size of the loading hole 7 is not less than 150mm×200mm×300mm in width×length×height.

The length of the exposed threads of the anchor bolts 3 is 150mm-300mm, within this length range, it is convenient to install and disassemble the jacking tower foot plate 4.

In the present invention, by reserving the loading hole 7 on which the jack 2 can be placed on the independent foundation 1 of the concrete long column, and constructing the tower foot plate 4 that can be lifted while installing the iron tower, that is, the main material connecting plate 8 of the iron tower and the main material 5 of the iron tower Welded, and welded on the base plate 6 simultaneously with the stiffener 9. When the iron tower tilts, you only need to loosen the anchor bolt 3, put the jack 2 in the loading hole 7 reserved for the independent foundation 1 of the concrete long column, and use the jack 2 to lift the foot plate 4 of the tower to correct the tilt. Correct the deflection of the transmission tower. After the deflection correction is completed, tighten the anchor bolts 3. The present invention can effectively reduce the inclination angle of the iron tower under the condition of convenient construction and few tools, and can carry out continuous adjustment to reduce the additional stress generated on the power transmission tower by surface deformation, so that the iron tower can withstand the influence of coal mine mining, Thus ensuring the safety of the transmission line.

Claims (5)

1. a jacking device for deviation rectification of steel pylon in mining area of coal mine, including concrete long column independent footing (1) and foundation bolt (3)；Characterized by further comprising can jacking column foot plate (4), jacking column foot plate (4) base plate (6) and the iron tower main material connecting plate (8) being welded on base plate (6) can be included, iron tower main material connecting plate (8) welds along edge with iron tower main material (5)；Can the base plate (6) of jacking column foot plate (4) be connected with concrete long column independent footing (1) by foundation bolt (3)；Concrete long column independent footing (1) is provided with the loading hole (7) for laying jack (2)；Described foundation bolt (3) exposes screw thread length and is not shorter than 150mm.

A kind of jacking device for deviation rectification of steel pylon in mining area of coal mine the most according to claim 1, it is characterised in that be welded with stiffener (9), stiffener (9) and iron tower main material connecting plate (8) vertical welding on base plate (6).

A kind of jacking device for deviation rectification of steel pylon in mining area of coal mine the most according to claim 1, it is characterised in that described loading hole (7) is rectangular structure.

A kind of jacking device for deviation rectification of steel pylon in mining area of coal mine the most according to claim 3, it is characterised in that the size width x length × height of described loading hole (7) is not less than 150mm × 200mm × 300mm.

A kind of jacking device for deviation rectification of steel pylon in mining area of coal mine the most according to claim 1, it is characterised in that described foundation bolt (3) exposes screw thread a length of 150mm 300mm.