CN111994791A - Special lifting appliance for large steel piles - Google Patents

Abstract

The invention relates to a special hanger for large steel piles and an assembling method, comprising: a hanging beam and a side pole beam, the hanging beam is lifted and lowered by hoisting equipment, and the side pole beam is connected to the lower middle ear plate of the bottom surface of the hanging beam through a pulley block A, in order to realize the lifting and sinking of the positioning pipe pile; two sets of ear plates B are arranged on the bottom surface of the side-arm beam, each group of ear plates B is 2 steel plates, and the ear plates B are rolled into an arc shape that matches the wall of the positioning pipe pile. , the wall of the positioning pipe pile is provided with a wall hole which is connected with the ear plate B. The invention increases the effective lifting and the lifting height of the crane, can expand the hoisting range, change the force direction of the wire rope hoisting method, avoid the deformation of the steel pile caused by excessive horizontal force, and is suitable for the hoisting of steel piles of various weights.

Description

A special hanger for large steel piles

technical field

The invention relates to the field of bridge pile foundation construction, in particular to a special hanger for large steel piles.

Background technique

In the construction of deep-water bridge pile foundations, limited by the surrounding conditions of the water area where the bridge is located, such as insufficient water depth and insufficient river surface width in the reservoir or the river leading to the bridge, the large-scale water hoisting equipment cannot enter the site, and the hoisting of structural components in water usually adopts Floating Dragon Gate. For super long tonnage steel piles, due to the limitation of transportation conditions, the steel piles cannot be processed and formed at one time in the processing plant. It is necessary to reasonably divide the single steel pile into several sections for processing, and then use the floating gantry to lift and lower after transporting to the site. In the past hoisting operations of steel piles, two hoisting points are usually set on the steel piles, and then the steel wire ropes are tied to the hoisting points, and they are directly hoisted and lowered. However, for super long tonnage steel piles, due to the limited working height of the floating gantry and the large diameter of the steel piles, if the wire rope is still used for hoisting directly, the angle between the wire ropes at the two hoisting points of the steel pile is relatively large, resulting in a large steel wire rope. The horizontal force of the steel pile is transmitted to the steel pile hanging point, causing the slanting deformation of the steel pile hanging point, which in turn affects the butt joint quality and overall verticality between the steel pile segments.

It is an urgent problem to study and process a special hoisting tool that has large hoisting weight, saves working space, and will not cause damage to the steel pile hoisting point during the hoisting and lowering process.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a special hanger for large-scale steel piles, which is characterized in that it includes a hanging beam and a pole beam, the hanging beam can be lifted and lowered by hoisting equipment, and the horizontal pole beam is connected to the hanging beam through a pulley block. The lower middle ear plate A of the bottom surface of the beam is used to realize lifting and sinking of steel piles; two groups of ear plates B are arranged on the bottom surface of the side-arm beam, and each group of ear plates B is made of 2 steel plates, and the ear plates B are rolled to form matching steel piles. The arc shape of the wall, the wall of the steel pile is provided with a wall hole which is connected with the ear plate B.

Further, the bottom surface of the hanging beam is fixedly installed with a fixed pulley through a set of lugs A, and the fixed pulley and the movable pulley on the top surface of the side-arm beam are connected to form an integral pulley set through a wire rope, and the movable pulley is moved up and down by the elastic wire rope.

Further, the hanging beams are used as the hanging point distribution beams lowered by the steel piles, which are made of 2HN700×300mm steel, and are arranged above the platform columns.

Further, a set of ear plates A are provided on the top surface of the shoulder beam, and the movable pulley is connected to the shoulder beam through the ear plates A.

Further, the ear plate A is made of two steel plates of 35cm*35cm*6cm specifications.

Further, the fixed pulley is fixed with the lug plate A through the steel pin A, the steel pin A is 45cm long, and the diameter is 83mm, the lug plate A is provided with an 8.5cm diameter hole, and the steel pin A passes through the movable pulley pin hole and the lug plate A pin hole. Connect the two parts together.

Further, the steel pile is fixed to the ear plate B by a steel pin B, the steel pin B is 20 cm long and 5 cm in diameter, and a 5.5 cm diameter hole is provided in the ear plate B, which is connected to the pile wall hole through the steel pin.

Further, one end of the steel pin A and the steel pin B is a fixed end, and the other end needs to be provided with a limit bayonet.

Further, it also includes a method for assembling a special hanger for large steel piles:

1) Calculate the hanging beam, lug plate A, lug plate B, pole beam, steel pin A, steel pin B and other components according to the weight of the steel pile to be hoisted and select appropriate materials, and then process and weld each component according to the size. ;

2) Connect the lug plate A by full welding according to the size and position of the hanging beam and the fixed pulley, the movable pulley and the shoulder beam, and also connect the lug plate B with the bottom surface of the shoulder beam according to the diameter of the hanging pipe pile, and use the steel pin A to connect the movable pulley. It is connected and fixed with the lug plate A welded on the pole beam through the pin hole, and then the movable pulley is connected with the fixed pulley on the bottom surface of the hanging beam through the wire rope to form a pulley block, and the lug plate B on the bottom surface of the pole beam is connected and fixed with the steel pile through the steel pin B; One end is the fixed end, and the other end needs to be set with a limit bayonet. After the connection is completed, the steel pile is lifted and lowered by the pulley block.

The beneficial effects that the present invention produces are:

1. It can increase the effective height of the crane lifting, especially when the lifting height is limited, if a special spreader is used, the length of the sling can be shortened to meet the height requirements.

2. It can expand the scope of hoisting, change the force direction of the wire rope hoisting method, and avoid the deformation of the steel pile caused by excessive horizontal force.

3. It is suitable for the hoisting of steel piles of various weights.

Description of drawings

Fig. 1 is the front view of the hanging beam structure of the present invention

Fig. 2 is the right side view of the hanging beam structure of the present invention

Fig. 3 is the front view of the pole beam structure of the present invention

Fig. 4 is the right side view of the pole beam structure of the present invention

Fig. 5 is the top view of the connection part between the ear plate B and the pipe pile of the present invention

1-fixed pulley, 2-hanging beam, 3-moving pulley, 4-ear plate A, 5-steel pin A, 6-panel beam, 7-ear plate B, 8-pipe pile, 9-steel pin B

Detailed ways

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

Figures 1-5 show a special hanger for large-scale steel piles, which is characterized in that it includes: a hanging beam 2 and a side pole beam 6, the hanging beam 2 is lifted and lowered by hoisting equipment, and the side pole beam 6 is connected to a pulley block through a pulley. The lower middle ear plate A4 of the bottom surface of the hanging beam is to realize lifting and sinking of the steel pile; the bottom surface of the shoulder beam 6 is provided with two groups of ear plates B7, each group of ear plates B7 is 2 steel plates, and the ear plates B7 are rolled out Matching the arc shape of the steel pile wall, the steel pile wall is provided with a wall hole which is connected with the ear plate B7.

Specifically, the bottom surface of the hanging beam 2 is fixedly installed with a fixed pulley 1 through a set of lugs A, and the fixed pulley 1 and the movable pulley 3 on the top surface of the side-arm beam 6 are connected to form an integral pulley block through a wire rope, and the elastic wire rope makes the The movable pulley 3 moves up and down.

Specifically, the hanging beam 2 is used as a hanging point distribution beam lowered by the steel pile, using 2HN700×300mm section steel, and arranged above the platform column.

Specifically, a set of lugs A are provided on the top surface of the shoulder beam 6, and the movable pulley 3 is connected to the shoulder beam through the lugs A.

Specifically, the ear plate A is made of two steel plates with a size of 35cm*35cm*6cm.

Specifically, the fixed pulley is fixed to the lug plate A4 through the steel pin A5, the steel pin A5 is 45cm long and the diameter is 83mm, the lug plate A4 is provided with an 8.5cm diameter hole, and the steel pin A5 is pinned through the movable pulley pin hole and the lug plate A4. The holes connect the two parts together.

Specifically, the steel pile is fixed to the ear plate B7 by a steel pin B9, the steel pin B9 is 20 cm long and 5 cm in diameter, and a 5.5 cm diameter hole is provided in the ear plate B7, which is connected to the pile wall hole through the steel pin.

Specifically, one end of the steel pin A5 and the steel pin B9 is a fixed end, and the other end needs to be provided with a limit bayonet.

Main technical features of the present invention

1. It can increase the effective height of the crane lifting, especially when the lifting height is limited, if a special spreader is used, the length of the sling can be shortened to meet the height requirements.

2. It can expand the scope of hoisting, change the force direction of the wire rope hoisting method, and avoid the deformation of the steel pile caused by excessive horizontal force.

3. It is suitable for the hoisting of steel piles of various weights.

The device is mainly installed in the following ways:

1) Calculate the hanging beam, lug plate A, lug plate B, pole beam, steel pin A, steel pin B and other components according to the weight of the steel pile to be hoisted and select appropriate materials, and then process and weld each component according to the size. ;

2) Connect the lug plate A by full welding according to the size and position of the hanging beam and the fixed pulley, the movable pulley and the shoulder beam, and also connect the lug plate B with the bottom surface of the shoulder beam according to the diameter of the hanging pipe pile, and use the steel pin A to connect the movable pulley. It is connected and fixed with the lug plate A welded on the pole beam through the pin hole, and then the movable pulley is connected with the fixed pulley on the bottom surface of the hanging beam through the wire rope to form a pulley block, and the lug plate B on the bottom surface of the pole beam is connected and fixed with the steel pile through the steel pin B; One end is the fixed end, and the other end needs to be set with a limit bayonet. After the connection is completed, the steel pile is lifted and lowered by the pulley block.

The above are only the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the principles of the present invention whose scope is defined by the claims and their equivalents are not departed from. These embodiments can be modified and perfected under the condition of keeping the spirit of the present invention, and these modifications and improvements should also fall within the protection scope of the present invention.

Claims (9)

1. a special-purpose hanger for large-scale steel piles, is characterized in that, comprises: hanging beam and side-arm beam, described hanging beam realizes lifting and lowering by hoisting equipment, and described side-arm beam is connected to the lower middle lug plate of the bottom surface of described hanging beam by pulley block A, in order to realize lifting and sinking of steel piles; two sets of lugs B are arranged on the bottom surface of the shoulder beam, each set of lugs B is 2 steel plates, and the lugs B are rolled into an arc shape that matches the steel pile wall, so The steel pile wall is provided with a wall hole which is connected with the ear plate B. 2. The special hanger for large-scale steel piles as claimed in claim 1, wherein the bottom surface of the hanging beam is fixedly installed with a fixed pulley through a group of lugs A, and the fixed pulley and the movable pulley on the top surface of the side-arm beam pass through. The wire rope is connected to form an integral pulley block, and the movable pulley is moved up and down by tightening the wire rope. 3 . The special hanger for large steel piles according to claim 1 , wherein the hanging beams are used as the hanging point distribution beams lowered by the steel piles, using 2HN700×300mm shaped steel, and arranged above the platform columns. 4 . 4 . The special hanger for large steel piles according to claim 1 , wherein a set of lugs A are provided on the top surface of the shoulder beam, and the movable pulley is connected to the beam through the lugs A. 5 . 5 . The special hanger for large steel piles according to claim 4 , wherein the ear plate A is made of two steel plates of 35cm*35cm*6cm specifications. 6 . 6. The special hanger for large-scale steel piles as claimed in claim 5, wherein the fixed pulley is fixed to the lug A by a steel pin A, the steel pin A is 45cm long, and the diameter is 83mm, and the lug A is set to 8.5 cm diameter hole, steel pin A connects the two parts together through the pin hole of the movable pulley and the pin hole of the lug plate A. 7. The special hanger for large-scale steel piles as claimed in claim 6, wherein the steel piles are fixed to the lugs B through steel pins B, the steel pins B are 20cm long and 5cm in diameter, and are arranged on the lugs B. A 5.5cm diameter hole is connected to the pile wall hole by a steel pin. 8 . The special hanger for large steel piles according to claim 7 , wherein one end of the steel pin A and the steel pin B is a fixed end, and the other end needs to be provided with a limit bayonet pin. 9 . 9. The assembling method of the special hanger for large-scale steel piles as claimed in claim 8, characterized in that, 1) Calculate the hanging beam, lug plate A, lug plate B, pole beam, steel pin A, steel pin B and other components according to the weight of the steel pile to be hoisted and select appropriate materials, and then process and weld each component according to the size. ; 2) Connect the lug plate A by full welding according to the size and position of the hanging beam and the fixed pulley, the movable pulley and the shoulder beam, and also connect the lug plate B with the bottom surface of the shoulder beam according to the diameter of the hanging pipe pile, and use the steel pin A to connect the movable pulley. It is connected and fixed with the lug plate A welded on the pole beam through the pin hole, and then the movable pulley is connected with the fixed pulley on the bottom surface of the hanging beam through the wire rope to form a pulley block, and the lug plate B on the bottom surface of the pole beam is connected and fixed with the steel pile through the steel pin B; One end is the fixed end, and the other end needs to be set with a limit bayonet. After the connection is completed, the steel pile is lifted and lowered by the pulley block.

Images