CN216586185U - A double-layer Bailey beam hoisting structure - Google Patents

Abstract

The utility model belongs to the technical field of the hoisting of the cast-in-place beam Bailey frame of the bracket, and solves the problems of the existing Bailey beam hoisting structure that the hoisting procedure is complicated, the wire rope is difficult to untie, and the safety hazards are caused by easy wear and tear. Provided is a double-layer Bailey beam hoisting structure, including a double-layer Bailey beam, the double-layer Bailey beam is formed by splicing two Bailey frame units arranged side by side, and the Bailey frame includes an upper chord, a lower chord and a The web bar and the upper chord between the two consist of two connected channel steel beams; a set of spreaders are arranged on the double-layer Bailey beams near the left and right sides. The bottoms of the two channel steel beams are respectively clamped in the two brackets of the spreader, the upper end of the spreader protrudes from the upper chord, and is connected with a shackle, and a wire rope is connected to the shackle. The wire rope is connected to the hook of the same hoisting device. The utility model has the advantages of simple structure, convenient disassembly and assembly, high stability, and avoids the hidden danger of decoupling during hoisting.

Description

A double-layer Bailey beam hoisting structure

technical field

The utility model belongs to the technical field of hoisting a cast-in-place beam Bailey frame of a bracket, and particularly relates to a double-layer Bailey beam hoisting structure.

Background technique

As an important part of transportation facilities, railway bridges are mostly cast-in-place simply supported beams and continuous cast-in-place beams with berets, which can meet on-site construction when crossing rivers and roads.

When the beret is hoisted, the steel wire rope is generally used for hoisting. The steel wire rope needs to be tied to the beret before hoisting the beret. After the hoisting is completed, the wire rope needs to be unbound from the beret. The process is complicated and time consuming. , and the wire rope is often twisted and tightened together after being stressed, and it is not easy to disassemble, and the wire rope is easily worn at the contact part between the wire rope and the beret frame, causing potential safety hazards, which is a major problem when hoisting the beray frame.

Therefore, a double-layer Bailey beam hoisting structure that can be quickly loaded and unloaded and avoid the hidden danger of decoupling needs to be studied urgently.

Utility model content

Aiming at the shortcomings of the existing Bailey beam hoisting structure, the hoisting process is complicated, the wire rope is difficult to untie, and easy to wear, causing potential safety hazards. There are two sets of spreaders on the left and right upper chords. The channel steel beams of the upper chord are stuck in the brackets of the spreaders, and the double-layer Bailey beams are stably held up. When disassembling and assembling, only the spreaders need to be lowered or raised a section. position, and then turn it 90 degrees to lift to complete the disassembly and installation.

In order to achieve the above-mentioned purpose, the present utility model adopts the following technical scheme, a double-layer Bailey beam hoisting structure, comprising a double-layer Bailey beam, the double-layer Bailey beam is formed by splicing two Bailey frame units arranged side by side, and the double-layer Bailey beam is spliced together. The mine frame unit includes a plurality of bere frames connected in sequence, the bere frame includes an upper chord, a lower chord and a web rod connected between the two, and the upper chord includes two connected channel steel beams; There are two sets of spreaders near the left and right sides of the upper chord. Each set of spreaders is two, which are respectively arranged on the two upper chords opposite to the front and rear. The cross-section of the sling is mountain-shaped. The bottom of the sling is clamped in the two brackets of the sling, the upper end of the sling protrudes from the upper chord, and is connected with a shackle, and a wire rope is connected to the shackle, and the two wire ropes corresponding to the same group of slings are connected together. on the hook of the device.

Preferably, the hanger is a plate-like structure, including a middle hanger and right-angle hooks on both sides, the upper part of the hanger has a round hole connected with the shackle, and the lower part of the hanger and the right-angle hooks form two for supporting Brackets for channel beams.

Preferably, the shackle is a D-shaped shackle, including a retaining ring and a connecting bolt, the lower end of the wire rope is inserted in the retaining ring, and the connecting bolt passes through the circular hole to lock the retaining ring on the sling.

Preferably, the depth of the bracket is less than the height of the channel beam, the length of the hanger is greater than the sum of the depth of the bracket and the height of the channel beam, and the length of the bracket matches the width of the channel beam.

Preferably, the two sets of spreaders are arranged symmetrically with respect to the center point of the double-layer Bailey beam, and the two spreaders of the same group are arranged opposite to each other.

Preferably, the lower end of the channel steel beam is provided with two blocks corresponding to the position of the hanger, and the horizontal section of the right-angle hook is fitted and embedded between the two blocks.

Compared with the prior art, the utility model provides a double-layer Bailey beam hoisting structure, which has the following beneficial effects:

1. The utility model is provided with two sets of spreaders on the upper chords on the left and right sides of the double-layer Bailey beam, and the channel steel beams of the upper chord are stuck in the brackets of the spreader, and the double-layer Bailey beam is stably held up, disassembled and assembled. When the sling is lifted, it is only necessary to lower or raise the spreader for a certain position, and then turn it 90 degrees to assist the lifting, and then the disassembly and installation can be completed.

2. The hoisting device of the utility model has the advantages of simple structure, low manufacturing cost, convenient disassembly and assembly, high stability, and avoids the hidden danger of decoupling during hoisting.

The parts not involved in the device are the same as the prior art or can be implemented by using the prior art.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the overall structure of this embodiment;

Fig. 2 is the structural representation of the spreader and the shackle of the present embodiment;

3 is a schematic structural diagram of the spreader of the present embodiment;

Fig. 4 is the longitudinal sectional view of this embodiment;

FIG. 5 is a schematic diagram of a part of the structure of this embodiment after adding a stopper.

In the picture: 1-Double Belay beam; 1.11-Channel steel beam; 1.2-Lower chord; 1.3-Web rod; 2-Sling; 2.1-Hanging handle; 2.11-Round hole; 2.2-Right-angle hook; Slot; 3-shackle; 3.1-buckle; 3.2-connecting bolt; 4-wire rope; 5-hook; 6-stop.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

The utility model provides an embodiment:

As shown in FIG. 1, a double-layer Bailey beam hoisting structure includes a double-layer Bailey beam 1. The double-layer Bailey beam 1 is formed by splicing two Bailey frame units arranged side by side. The Bailey frame unit includes multiple The berets are connected in sequence. The beret includes an upper chord, a lower chord 1.2, and a web 1.3 connected between them. The upper chord includes two connected channel steel beams 1.11. In this embodiment, the double-layered The structure and connection method of the Bailey beam are in the prior art, and will not be further described here.

Two sets of spreaders 2 are arranged at positions close to the left and right sides of the double-layer Bailey beam 1. The two sets of spreaders 2 are symmetrically arranged with respect to the center point of the double-layer Bailey beam 1. There are two spreaders 2 in each group. The two upper chords are oppositely arranged on the two upper chords. The cross-section of the spreader 2 is a chevron shape. The bottoms of the two channel steel beams 1.11 of the upper chord are respectively clamped in the two brackets 2.3 of the The upper chord is connected, and a shackle 3 is connected. The shackle 3 is connected with a steel wire rope 4. The two steel wire ropes 4 corresponding to the same group of slings 2 are connected to the hook 5 of the same hoisting device.

As shown in Figure 2, Figure 3, Figure 4, in this embodiment, the hanger 2 is a plate-like structure, which is integrally cut from a 4cm-thick steel plate, including the middle hanging handle 2.1 and the right-angle hooks 2.2 on both sides. The upper end of the handle 2.1 has a round hole 2.11 connected with the shackle 3. The bracket 2.3 is surrounded by the lower part of the hanging handle 2.1 and the right angle hook 2.2. The sum of the depth of the bracket 2.3 and the height of the channel beam 1.11 ensures that the hanging handle 2.1 can be taken out and placed between the two channel beams 1.11 of the upper chord, and the channel beam 1.11 is lifted through the bracket 2.3; The length of the groove 2.3 matches the width of the channel beam 1.11, which can ensure that the channel beam 1.11 and the spreader 2 are clamped tightly during the hoisting process of the double-layer Bailey beam 1 to prevent falling. Under the action, the spreader 2 generally does not slide.

During the hoisting process, if the inclination angle is too large, the spreader 2 will slide for a certain distance (between the vertical rod and the inclined rod of the web rod 1.3), and there may be a certain safety hazard. Therefore, as shown in Figure 5 As shown, two blocks 6 are set at the lower end of the channel beam 1.11 corresponding to the position of the spreader 2, and the horizontal section of the right-angle hook 2.2 is fitted and embedded between the two blocks 6, so that the position of the spreader 2 can be adjusted. It is limited to prevent slippage when the inclination angle is too large, and before the spreader 2 lifts the channel steel beam 1.1, the right-angle hook 2.2 of the spreader 2 can be embedded between the stoppers 6 to avoid the spreader 2 from tilting at the moment of lifting. The inclination will cause certain damage to the rigidity of the right angle hook 2.2.

In this embodiment, the sling 2 and the wire rope 4 are connected by a shackle 3, which has a high bearing capacity, does not rotate during the lifting process, and can well ensure the fastening of the connection. The shackle 3 is a D-shaped shackle, including the buckle The ring 3.1 and the connecting bolt 3.2, the lower end of the wire rope 4 is inserted into the retaining ring 3.1, and the connecting bolt 3.2 passes through the circular hole 2.11 to lock the retaining ring 3.1 on the hanger 2.

Specific steps:

1. Connect the upper ends of the two wire ropes 4 corresponding to the same set of spreaders 2 to the hooks 5 of the same hoisting device (the hoisting device is a car crane), and connect the lower ends of the wire ropes 4 to the buckle 3.1 of the shackle 3. Connect the retaining ring 3.1 to the round hole 2.11 of the hanging handle 2.1 through the connecting bolt 3.2;

2. Put the spreader 2 into the gap between the two beams 1.11 of the upper chord by manual traction. When the right-angle hook 2.2 of the spreader 2 is located under the channel beam 1.11, turn the spreader 2 horizontally 90 degrees, and then pass the Lift the spreader 2 slowly, and the two brackets 2.3 firmly hold the two-channel steel beam 1.11;

3. Lift the double-layer Bailey beam 1 to the installation site through the hoisting device, and drive the spreader 2 to descend. After the double-layer Bailey beam 1 falls on the installation position, slowly lower the spreader 2 to a certain height, and then manually lift it. The spreader 2 can be assisted by turning the spreader 2 horizontally by 90 degrees from the double-layer Bailey beam 1 to complete the decoupling.

The above descriptions are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. The utility model provides a double-deck bailey roof beam hoisting structure which characterized in that: the double-layer Bailey beam comprises a double-layer Bailey beam (1), wherein the double-layer Bailey beam (1) is formed by splicing two Bailey truss units which are arranged side by side, each Bailey truss unit comprises a plurality of Bailey trusses which are connected in sequence, each Bailey truss comprises an upper chord, a lower chord (1.2) and a web member (1.3) connected between the upper chord and the lower chord, and the upper chord comprises two channel steel beams (1.11) which are connected; the position that is close to the left and right sides on double-deck bailey roof beam (1) respectively is provided with a set of hoist (2), every hoist (2) of group are two, set up respectively on two relative upper chords in front and back, the cross-section of hoist (2) is the chevron shape, the joint is in two support grooves (2.3) of hoist (2) respectively in the bottom of the channel steel roof beam (1.11) of upper chord, the upper chord is stretched out to the upper end of hoist (2), and be connected with shackle (3), be connected with wire rope (4) on shackle (3), two wire rope (4) that same hoist (2) of group correspond are connected on same hoisting device's lifting hook.

2. The double-layer Bailey beam hoisting structure according to claim 1, wherein: the hanger (2) is of a plate-shaped structure and comprises a hanging handle (2.1) in the middle and right-angle hooks (2.2) on two sides, a round hole (2.11) connected with the shackle (3) is formed in the upper portion of the hanging handle (2.1), and the bracket (2.3) is formed by surrounding the lower portion of the hanging handle (2.1) and the right-angle hooks (2.2).

3. The double-layer Bailey beam hoisting structure according to claim 2, wherein: the shackle (3) is a D-shaped shackle and comprises a retaining ring (3.1) and a connecting bolt (3.2), the lower end of the steel wire rope (4) is arranged in the retaining ring (3.1) in a penetrating mode, and the connecting bolt (3.2) penetrates through a round hole (2.11) to lock the retaining ring (3.1) on the lifting appliance (2).

4. The double-layer Bailey beam hoisting structure according to claim 3, wherein: the depth of the bracket (2.3) is smaller than the height of the channel steel beam (1.11), the length of the hanging handle (2.1) is larger than the sum of the depth of the bracket (2.3) and the height of the channel steel beam (1.11), and the channel length of the bracket (2.3) is matched with the width of the channel steel beam (1.11).

5. The double-layer Bailey beam hoisting structure according to claim 4, wherein: two sets of hoist (2) are for the central point symmetrical arrangement of double-deck bailey roof beam (1), and relative arrangement around two hoist (2) of same group, hoist (2) are located between the adjacent montant and the down tube of web member (1.3).

6. The double-layer Bailey beam hoisting structure according to claim 5, wherein: the lower end of the channel steel beam (1.11) is provided with two stop blocks (6) corresponding to the position of the lifting appliance (2), and the horizontal section of the right-angle hook (2.2) is embedded between the two stop blocks (6).

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