Assembly type building steel beam hoisting operation installation auxiliary device

Abstract

The utility model discloses a mounting auxiliary device for hoisting operation of a fabricated building steel beam, and solves the problem that the end part of the steel beam shakes and is easy to hurt people in high-altitude operation. A main body part of the device is a steel component formed by welding a base plate, a cantilever plate, a vertical reinforcing rib plate and a top plate, a vertical shaft hole is formed between the top plate and the cantilever end of the cantilever plate, a vertical pin shaft is installed at the position of the vertical shaft hole, the upper end and the lower end of the vertical pin shaft penetrate through the top plate and the cantilever plate, and a positioning head is arranged at the lower end of the vertical pin shaft. A worm gear is installed on one side of the vertical pin shaft, a rotating shaft is installed between the top plate and the cantilever plate, two worms are fixedly installed on the rotating shaft, and the two sides of each worm are each meshed with one worm gear. The device can be rapidly arranged at the position of a steel column bracket, accurate adjustment in the horizontal height direction is carried out, the steel beam and the bracket are located on the same horizontal plane through adjustment, and then rapid connection is carried out through a connecting steel plate.

Description

Technical Field

[0001] This utility model relates to the field of steel structure building construction technology, and in particular to an auxiliary tool for hoisting and installing steel beams. Background Technology

[0002] In steel structure construction, high-altitude hoisting of steel beams is a challenging and risky construction process. Current technology involves the following steps: steel beams are prepared, hoisting is done single-beam, and the lifting points are secured with two-point binding. The binding points are then padded with soft material to prevent damage. In other words, the hoisting operation involves directly binding the steel beams. The drawback of this method is that it easily damages the anti-corrosion coating of the steel beams. Furthermore, under the influence of wind loads at height, the ends of the steel beams experience significant swaying, requiring workers to perform auxiliary rendezvous at high altitudes, posing a safety hazard. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for hoisting and installing prefabricated building steel beams, and discloses the method of using the device. This solves the problem of swaying at the ends of steel beams during high-altitude operations, which can easily cause injury, and also addresses the issue of the lack of suitable hoisting points in existing steel beams.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] An auxiliary device for hoisting and installing steel beams in prefabricated buildings is disclosed. The main body of the device is a steel component welded from a base plate, a cantilever plate, vertical reinforcing ribs, and a top plate. The cantilever plate has a base plate fixedly mounted at one end and a cantilever end at the other. The top plate and cantilever plate are arranged parallel to each other. A vertical shaft hole is provided between the cantilever ends of the top plate and the cantilever plate, and a vertical pin is installed at the vertical shaft hole. The vertical pin passes through the top plate and the cantilever plate at both ends and has a positioning head at its lower end. A worm gear is installed on one side of the vertical pin, and the worm gear and the vertical pin are connected by a screw drive. A horizontally arranged rotating shaft is installed in the space between the top plate and the cantilever plate. A crank is connected to the outside of the rotating shaft, and two worms are fixedly installed on the rotating shaft. Each worm gear meshes with a worm wheel on its two sides.

[0006] Furthermore, a thrust bearing is installed above and below each worm gear, and the thrust bearing is located in the gap between the top plate, the cantilever plate and the worm gear.

[0007] Furthermore, a lifting plate is provided above the top plate, and the lifting plate is provided with lifting holes for connecting wire ropes or hooks.

[0008] Furthermore, the worm gear is provided with an internal thread, and the middle part of the vertical pin shaft is provided with an external thread at the position where it mates.

[0009] Furthermore, the length of the substrate is half that of the cantilever plate, and fixing bolt holes are provided at the corresponding positions of the substrate for fixing to the end of the steel beam.

[0010] Furthermore, the top plate and the cantilever plate are mechanically connected by multiple vertical reinforcing ribs, dividing the area between the top plate and the cantilever plate into multiple square areas.

[0011] Furthermore, the positioning head has a conical structure.

[0012] Furthermore, there are four pairs of vertical shaft holes arranged in a square array, and the axial spacing between the four vertical pins is equal to the spacing of the bolt holes on the steel bracket to be installed.

[0013] The usage method of the auxiliary installation device for high-altitude steel beam hoisting operations is as follows:

[0014] First, fix a steel beam high-altitude hoisting auxiliary installation device at each end of the steel beam. The fixing method is to use high-strength bolts to fix it to the steel beam. After fixing, use a hook to hook the lifting hole on the device and perform a trial lift. During the trial lift, make sure that the steel beam is no more than 5 centimeters off the ground. After confirming that the hoisting requirements are met, carry out the formal hoisting.

[0015] Formal hoisting begins with the steel beam being lifted by a crane to the bracket installation point of the steel column. The beam is then slowly aligned with the bracket, allowing the cantilever plates at both ends of the steel beam to engage with it. The crane is used to assist in adjustments so that the positioning heads of the four vertical pins in the device are aligned with the bolt holes on the bracket. Finally, the handle is cranked to adjust the horizontal level of the device and the bracket in the height direction.

[0016] Adjustments are made to ensure the steel beam and the corbel are level. Connecting steel plates are used to quickly and initially fix the web plate and lower flange of the steel beam and the web plate and lower flange of the corbel. After the initial fixation is completed, the high-strength bolts in this device are removed. The crane lifts the device from both ends of the steel beam for reuse. Workers then tighten the connecting steel plates and fastening bolts between the upper flange of the steel beam and the upper flange of the corbel.

[0017] The beneficial effects of this utility model are:

[0018] This device is installed on the ground and can be easily and quickly fixed to both ends of a steel beam, one on each side. Then, hoisting begins. During hoisting, the device can be quickly positioned at the steel column bracket and precisely adjusted in the horizontal direction to ensure the steel beam and bracket are on the same horizontal plane. Then, connecting steel plates are used for quick connection. After connection, the device can be removed. This device enables rapid positioning and installation at the ends of steel beams. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the device during steel beam installation.

[0020] Figure 2 This is a schematic diagram of the steel beam hoisting and installation.

[0021] Figure 3 for Figure 2 A partial schematic diagram.

[0022] Figure 4 This is a three-dimensional view of the device.

[0023] Figure 5 This is a perspective view of the device (top plate omitted).

[0024] In the picture:

[0025] 10 substrates,

[0026] 20 high-strength bolts

[0027] 30 cantilever plate,

[0028] 40 vertical reinforcing ribs,

[0029] 50mm top plate,

[0030] 60 Vertical pin, 61 Positioning head,

[0031] 70 worm gear, 71 lead screw drive,

[0032] 80 shaft, 81 worm gear,

[0033] 01 Steel beam, 02 Bracket, 03 Connecting steel plate. Detailed Implementation

[0034] This embodiment is described in conjunction with the appendix to the instruction manual. Figure 1 To be continued Figure 5 Provide a detailed explanation.

[0035] This is an auxiliary installation device for high-altitude steel beam hoisting operations. The device is a steel component, with its main body formed by welding a base plate 10, a cantilever plate 30, vertical reinforcing ribs 40, and a top plate 50, creating a three-dimensional steel frame structure. Specifically, the base plate 10 is half the length of the cantilever plate, and the base plate and cantilever plate are welded together. Fixing bolt holes are provided at corresponding positions on the base plate, allowing the device to be fixed to the ends of the steel beam using high-strength bolts 20. Correspondingly, bolt holes are pre-set at both ends of the steel beam.

[0036] The cantilever plate 30 has a base plate 10 fixedly mounted at one end and a cantilever at the other end, which is located on the outside of the steel beam.

[0037] The top plate 50 and the cantilever plate are arranged in parallel and connected by multiple vertical reinforcing ribs, dividing the area between the top plate and the cantilever plate into four grid-shaped areas. Each area is a three-dimensional structure with installation space. Two areas are the installation areas.

[0038] Vertical shaft holes are drilled between the top plate 50 and the cantilever plate 30. There are four pairs of vertical shaft holes, arranged in a square array. Each pair of vertical shaft holes is fitted with a vertical pin 60, which passes through the top plate and cantilever plate at both ends. The lower end of the vertical pin 60 has a positioning head 61, which is a conical structure. The spacing between the four vertical pins is approximately equal to the spacing of the bolt holes on the steel bracket to be installed. During hoisting, the positioning head engages with the bolt holes, providing a degree of automatic alignment.

[0039] A worm gear 70 is installed in the middle of the aforementioned vertical pin 60. This worm gear has a special structure with worm teeth on its outer side. The worm gear and the vertical pin are connected via a lead screw drive 71. That is, the worm gear 70 has an internal thread, and the middle part of the vertical pin 60 that mates with it has an external thread. By rotating the worm gear, the vertical pin has a slight vertical position adjustment capability in the height direction. A horizontally positioned rotating shaft 80 is also installed in the space between the top plate and the cantilever plate. A crank is connected to the outside of this rotating shaft, and two worms 81 are fixedly installed on the rotating shaft. Each worm 81 meshes with a worm gear 70 on its two sides. That is, by rotating the worm, the four vertical pins can be synchronously driven to have a fine-tuning function in the height direction.

[0040] Furthermore, a thrust bearing 72 is provided above and below each of the aforementioned worm gears 70, so that the position of the worm gear between the top plate and the cantilever plate remains constant.

[0041] Furthermore, a lifting plate 51 is welded above the aforementioned top plate 50. The lifting plate is provided with lifting holes for fixing wire ropes or hooks.

[0042] The usage method is as follows:

[0043] Fix one of these devices at each end of steel beam 01 using high-strength bolts 20. After fixing, hook the device with a lifting hook and perform a trial lift, ensuring that steel beam 01 is no more than 5 cm off the ground. Once the lifting requirements are met, proceed with the actual lifting.

[0044] Formal hoisting begins with a crane lifting the steel beam to the installation point of the steel column. The beam is then slowly aligned with the cantilever plates 30 at both ends of the beam, engaging with the brackets 02. The crane assists in adjusting the four vertical pin positioning heads 61 to align with the four bolt holes on the brackets. Since these positioning heads 61 have a conical structure, they have an automatic alignment function during the alignment process. Finally, the horizontal alignment of the device and the brackets is adjusted by cranking a handle; this process can be controlled by a worker.

[0045] The above adjustments ensure that the steel beam and the corbel are basically level and meet the installation requirements. Connecting steel plate 03 is then used to quickly connect the web and lower flange of the steel beam to the web and lower flange of the corbel. After completing the initial connection, the fastening bolts in this device are removed. A crane lifts the device from both ends of the steel beam, and workers use the connecting steel plate and fastening bolts to tighten the upper flange of the steel beam and the upper flange of the corbel, completing one connection.

[0046] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Without departing from the spirit of the present utility model, all modifications and improvements to the present utility model by those skilled in the art should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An auxiliary device for hoisting and installing steel beams in prefabricated buildings, the main body of which is a steel component welded from a base plate (10), a cantilever plate (30), vertical reinforcing ribs (40), and a top plate (50), characterized in that, The cantilever plate (30) has a base plate (10) fixedly mounted at one end and a cantilever end at the other end. The top plate (50) and the cantilever plate are arranged in parallel. A vertical shaft hole is provided between the cantilever ends of the top plate (50) and the cantilever plate (30). A vertical pin (60) is installed at the vertical shaft hole. The vertical pin (60) passes through the top plate and the cantilever plate at both ends and has a positioning head (61) at the lower end of the vertical pin (60). A worm gear (70) is installed on one side of the vertical pin (60). The worm gear and the vertical pin are connected by a screw drive (71). A horizontally arranged rotating shaft (80) is installed in the space between the top plate and the cantilever plate. A rocker arm is connected to the outside of the rotating shaft, and two worms (81) are fixedly installed on the rotating shaft. A worm gear (70) meshes with each side of the worm.

2. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, A thrust bearing (72) is provided above and below each worm wheel (70), and the thrust bearing is located in the gap between the top plate, the cantilever plate and the worm wheel.

3. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, A hoisting plate (51) is provided above the top plate (50), and the hoisting plate is provided with hoisting holes for connecting wire ropes or hooks.

4. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, The worm gear (70) has an internal thread, and the vertical pin (60) has an external thread at the position where it mates.

5. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, The base plate (10) is half the length of the cantilever plate, and a fixing bolt hole is provided at the corresponding position of the base plate to fix it to the end of the steel beam.

6. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, The top plate (50) and the cantilever plate are mechanically connected by multiple vertical reinforcing ribs, dividing the area between the top plate and the cantilever plate into multiple square areas.

7. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, The positioning head has a conical structure.

8. The auxiliary device for hoisting and installing prefabricated building steel beams according to claim 1, characterized in that, The number of vertical shaft holes is four pairs, arranged in a square array, and the shaft spacing between the four vertical pins is equal to the spacing of the bolt holes on the steel bracket to be installed.

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