CN211283450U - Auxiliary system for rolling large-scale round tiles of thin-wall steel pipes - Google Patents

Abstract

The utility model provides a system auxiliary system is rolled up to full circle tile of large-scale thin wall steel pipe, relates to the panel and rolls up the system field, concretely relates to auxiliary device that can roll up full circle tile of large-scale thin wall steel pipe. A single-wheel pulley is hoisted on a main hook of a gantry crane through a hoisting ring, a hoisting rope penetrates through a pulley of the single-wheel pulley, shackles are fixed at two ends of the hoisting rope respectively, and the shackles are connected with a whole-circle tile of a thin-wall steel pipe through a locking device. The utility model has the advantages that: the automatic balance auxiliary system comprises the portal crane, the lifting ring and the pulley, after one section of circular arc is pressed and rolled at the two ends of the tile, the portal crane, the automatic balance system and the steel plate locking device are used, external force is given from the two ends of the tile, the tile is prevented from collapsing downwards when being rolled, bending occurs, the two ends of the tile are stressed evenly under the automatic balance stress system, rolling of the large-sized thin-wall pressure steel pipe full-circle tile is achieved, investment and field use of large-sized special auxiliary equipment are reduced, and construction cost is reduced.

Description

A large-scale thin-walled steel tube full-circle tile rolling auxiliary system

technical field

An auxiliary system for rolling large-scale thin-walled steel pipe full-circle tiles relates to the field of sheet rolling, in particular to an auxiliary device capable of rolling large-scale thin-walled steel pipe full-circle tiles.

Background technique

In water conservancy and hydropower projects, large-scale penstocks are generally manufactured on site by building penstock processing plants to solve large-scale transportation problems and reduce production costs. Large pressure steel pipes are often assembled and welded by several tiles.

Steel pipe processing plants are generally equipped with gantry cranes, hydraulic three-roll rolling machines and other equipment. The gantry cranes are used for hoisting steel plates and tiles, and the rolling machines are used for rolling steel pipe tiles. The upper roll of the plate rolling machine can be lifted and lowered vertically, and the lower roll can be moved horizontally, with the functions of pressing head and plate rolling. There are brackets in the front and rear of the plate rolling machine. During the plate rolling process, the height of the bracket is adjusted to be in linear contact with the tile, and the tile is supported to prevent the steel plate from collapsing. It has a good effect on rolling the end of the tile. When the whole steel plate is rolled, as the arc of the tile increases, the bracket of the rolling machine can no longer support the tile. At this time, the weight of the steel plate in the suspended section is supported by its own rigidity, which will collapse and bend. Unable to continue rolling.

SUMMARY OF THE INVENTION

The problem to be solved by the present utility model is to solve the above shortcomings and provide a method to solve the problem that when the large thin-walled pressure steel pipe is made of a single steel plate into a full circle, the rigidity of the steel plate cannot support its own weight, resulting in collapse, bending, The problem of uneven force at both ends of the sheet. Its technical solutions are as follows:

The single-wheel pulley is hoisted on the main hook of the gantry machine through the lifting ring. The pulley of the single-wheel pulley has a hanging rope passing through it. The two ends of the hanging rope are respectively fixed with shackles. connect.

The locking device adopts a T-shaped locking device, and the front end of the T-shaped locking device is provided with a hoisting hole. When the steel pipe tile with the grouting hole on the steel pipe wall is rolled, pass the T-shaped locking device from the inner side of the tile through the grouting hole closest to the end, and use the shackle on the outside to pass through the T-shaped locking device on the outside. Lifting holes to form lifting points.

The bolt locking device can also be a bolt locking device. The bolt locking device is to install screw hole plates perpendicular to the groove plate on the left and right sides of the groove plate.

The lower end of the grooved plate is provided with a clamping slot, and the upper end is provided with a lifting hole.

The screw hole plate is provided with threaded holes, and bolts are matched in the threaded holes.

Compared with the prior art, the beneficial effects that the utility model has are:

The automatic balance auxiliary system composed of gantry crane, lifting ring and pulley is used. After the two ends of the tile are pressed and rolled for a segment, the gantry crane, automatic balancing system and steel plate locking device are used to give external force from both ends of the tile. , to prevent the tile from collapsing and bending during rolling, and the two ends of the tile are balanced under the automatic balance force system, so as to realize the rolling of large-scale thin-walled pressure steel pipe full-circle tiles, and reduce the investment and cost of large-scale special auxiliary equipment. Site use, reduce construction costs.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the structural schematic diagram of the T-shaped spindle locking device of the present invention;

Fig. 3 is the structural schematic diagram of the bolt locking device of the present invention;

4 is an enlarged view of the T-shaped locking device and the tile installation of the present invention;

5 is an enlarged view of the bolt locking device and the tile installation of the present invention;

FIG. 6 is a schematic diagram of the use state of the present invention.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , the utility model is to hoist the single-wheel pulley 3 on the main hook 1 of the door machine through the lifting ring 2, the pulley of the single-wheel pulley 3 has a hanging rope 4 passing through, and the two ends of the hanging rope 4 are respectively fixed with shackles 5 , the shackle 5 is connected with the round tile 7 of the thin-walled steel pipe through the locking device.

As shown in Figures 2 and 4, the locking device adopts a T-shaped locking device 6, and the front end of the T-shaped locking device is provided with a hoisting hole 6.1. When the steel pipe tile with the grouting hole on the steel pipe wall is rolled, pass the end of the T-shaped locking device with the hoisting hole from the inner side of the tile through the grouting hole 7.1 closest to the end, and use the shackle 5 to pass through the outer side. The hoisting hole 6.1 on the T-shaped locking device forms a hoisting point.

As shown in Fig. 3 and Fig. 5, the bolt locking device 9 can also be used as the locking device. The bolt locking device 9 is respectively installed with screw hole plates 9.1 perpendicular to the groove plate in front and back of the groove plate 9.3.

The lower end of the grooved plate 9.3 is provided with a clamping slot 9.31, and the upper end is provided with a lifting hole 9.32.

The screw hole plate 9.1 is provided with threaded holes, and the screw holes are matched with bolts 9.2.

When the steel pipe tile without grouting holes in the steel pipe wall is rolled, at 1 to 1.5m from the end of the tile 7, the slot 9.31 of the bolt locking device vertically clamps the tile 7 from both sides of the tile, and then tightens Bolt 9.2, use shackle 5 to pass through the lifting hole 9.32 on the bolt locking device; use a wire rope to connect the two locking devices at the same end to form a lifting point on the center of the tile width.

As shown in Figure 6, after the two ends of the steel pipe tile are rolled for an arc length, the shackle 5 of the auxiliary system is connected to the hanging point formed by the locking device, and the main hook 1 of the hoisting machine is used to make the two ends of the tile 7 Under the action of the pulley, the force on both ends of the wire rope is always the same, and the length is automatically adjusted with the change of the height difference between the two ends of the tile, so that the force on both ends of the tile is balanced. During the rolling process, observe the increase in the length of the curling arcs at both ends of the tile and the change in the left and right lengths, and adjust the position of the gantry cart and the height of the main hook in time, so that the gantry hook is in a vertical stress state, and there is no When the collapse phenomenon is obvious, continue to roll until the full-circle tile is rolled.

Figure 8 is the rolling machine.

Claims (5)

1. A large-scale thin-walled steel pipe full-circle tile rolling auxiliary system is characterized in that the single-wheel pulley (3) is hoisted by the lifting ring (2) on the main hook of the door machine (1), the pulley of the single-wheel pulley (3) A sling (4) passes through the sling, two ends of the sling (4) are respectively fixed with shackles (5), and the shackles (5) are connected with the thin-walled steel tube full-circle tiles (7) through a locking device. 2. According to the described large-scale thin-walled steel pipe full-circle tile rolling auxiliary system of claim 1, it is characterized in that the locking device is a T-shaped locking device (6), and the front end of the T-shaped locking device (6) opens a hoisting hole ( 6.1). 3. The large-scale thin-walled steel pipe full-circle tile rolling auxiliary system according to claim 1 is characterized in that the locking device is a bolt locking device (9), and the bolt locking device (9) is a grooved plate (9.3). ), respectively, install the screw hole plates (9.1) perpendicular to the channel plate. 4. The large-scale thin-walled steel pipe full-circle tile rolling auxiliary system according to claim 3, characterized in that the lower end of the groove plate (9.3) is provided with a clamping slot (9.31), and the upper end is provided with a lifting hole (9.32). 5. The large-scale thin-walled steel pipe full-circle tile rolling auxiliary system according to claim 3, characterized in that the threaded hole plate (9.1) is provided with threaded holes, and the threaded holes are matched with bolts (9.2).

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