Prefabricated pipe gallery hoisting device

Abstract

The utility model provides a prefabricated pipe gallery hoisting device, which comprises a balance beam, a hoisting device and a hoisting device, the upper hoisting part is arranged at the central part of the top of the balance beam and is used for being connected with a hoisting machine; the lower hoisting part is arranged at the bottom of the balance beam and used for being connected with the prefabricated tubular beam, the lower hoisting part comprises a plurality of hoisting units which are sequentially arranged at intervals from outside to inside, and each hoisting unit comprises four hoisting assemblies which are arranged in a rectangular shape; the long side direction and the short side direction of the rectangle are the length direction and the width direction of the balance beam respectively. The hoisting device can adapt to various hoisting working conditions of the large prefabricated pipe gallery, meets the requirements of current modular construction, improves the hoisting efficiency and ensures the construction safety.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering hoisting technology, specifically relating to a prefabricated pipe gallery hoisting device. Background Technology

[0002] During the construction of industrial plants, the outdoor works involve numerous construction sections, densely packed construction areas, and limited construction space. The construction of utility tunnels is also affected by surrounding sub-projects, overall site changes, and vertical transportation equipment, resulting in a complex and variable construction logic. To expedite the on-site construction progress, it was decided to adopt a prefabricated modular utility tunnel construction method for a certain section of the outdoor utility tunnel. For example, the 123m long outdoor utility tunnel is divided into 20 6m prefabricated segments and 1 3m prefabricated segment, with a cross-sectional dimension of 4.45m × 3.25m. The structural form is a double-cavity prefabricated utility tunnel. The embedded parts and sleeves of each prefabricated segment are installed during prefabrication. Each 6m segment weighs approximately 84 tons, and the 3m segment weighs approximately 42 tons. Each prefabricated segment is designed with a total of 8 lifting lugs made of 70mm Q235B steel plate. Due to the length of this prefabricated modular utility tunnel... Due to its large size and the fact that it is formed by vertical one-time casting, this precast pipe gallery is the largest and heaviest precast component in this project. Therefore, the location of the lifting point needs to be determined by special design calculations. Traditional lifting balancing devices are often only suitable for single working conditions and lifting small precast components, and are difficult to apply to large precast components. Therefore, based on the characteristics of this construction, a large precast pipe gallery lifting balancing rigging that can adapt to multiple working conditions is designed, which has important practical significance and application value. Utility Model Content

[0003] To address the shortcomings of the existing technology, the purpose of this utility model is to provide a prefabricated pipe gallery hoisting device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model provides a precast pipe gallery hoisting device, characterized by the following features: a balance beam, which is a box beam structure; an upper hoisting part, located at the central part of the top of the balance beam, for connection with hoisting machinery; and a lower hoisting part, located at the bottom of the balance beam, for connection with the precast pipe beam. The lower hoisting part includes multiple hoisting units arranged sequentially from the outside to the inside, and each hoisting unit contains four hoisting components arranged in a rectangle. The long side and short side of the rectangle are the length and width directions of the balance beam, respectively.

[0006] The prefabricated pipe gallery hoisting device provided by this utility model may also have the following feature: the balance beam is in the shape of an "I".

[0007] In the prefabricated pipe gallery hoisting device, the upper hoisting part comprises upper lifting lugs, upper lifting ropes and lifting rope mounting shafts, the upper lifting lugs are fixedly arranged on the balance beam, the lifting rope mounting shafts are fixedly arranged on the upper lifting lugs, and the upper lifting ropes are respectively hung on the lifting rope mounting shafts and the hooks of the hoisting machinery.

[0008] In the prefabricated pipe gallery hoisting device, the number of the lifting rope mounting shafts and the upper lifting ropes is two, the two lifting rope mounting shafts are symmetrically arranged in the length direction of the balance beam, each lifting rope mounting shaft is arranged along the width direction of the balance beam, and the two upper lifting ropes are respectively hung on the two lifting rope mounting shafts.

[0009] In the prefabricated pipe gallery hoisting device, each hoisting assembly comprises lower lifting lugs and lower lifting ropes, the lower lifting lugs are fixedly arranged on the balance beam, and the lower lifting ropes are respectively connected with the lower lifting lugs and the prefabricated pipe gallery.

[0010] In the prefabricated pipe gallery hoisting device, at least one group of pipe gallery lifting lugs matched with at least one of the plurality of hoisting units is arranged on the prefabricated pipe gallery.

[0011] In the prefabricated pipe gallery hoisting device, the lower lifting lugs and the pipe gallery lifting lugs are respectively provided with hooks for hanging the lower lifting ropes.

[0012] In the prefabricated pipe gallery hoisting device, the hooks are arc-shaped hooks.

[0013] Compared with the prior art, the utility model has the advantages that because of having the balance beam, upper hoisting part and lower hoisting part, the balance beam is the box beam structure, the upper hoisting part sets at the central part of balance beam top, can be connected with hoisting machinery, the lower hoisting part sets at the bottom of balance beam, contains the multiple hoisting units that are arranged in space by outside to inside and can be connected with prefabricated pipe beam, every hoisting unit contains four hoisting assemblies that are arranged in rectangle, not only can adapt to multiple hoisting conditions of large prefabricated pipe gallery, meet the needs of current modular construction, improve hoisting efficiency, ensure construction safety, and guarantee prefabricated pipe gallery to keep balance in hoisting and in situ process, avoid hoisting cable mechanism to damage prefabricated pipe gallery, effectively shorten the height of hoisting cable, reduce the hoisting height of prefabricated pipe gallery, reduce the pressure that pipe gallery bears when hoisting, avoid causing the damage of prefabricated pipe gallery, improve the efficiency of prefabricated pipe gallery hoisting, ensure the safety of hoisting process, avoid the deformation and cracking of prefabricated pipe gallery due to uneven stress of lifting lug.In addition, simple processing and manufacturing can be repeated, simple and fast on-site operation meets the use requirements of large prefabricated pipe gallery hoisting, obvious effect, speeds up the construction progress of the scene, ensures the stability of the related components and the safety of the personnel. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the front view of the prefabricated pipe gallery hoisting device in the embodiment of the utility model;

[0015] Fig. 2 It is the side view of the prefabricated pipe gallery hoisting device in the embodiment of the utility model;And

[0016] Fig. 3 It is the plan view of the prefabricated pipe gallery hoisting device in the embodiment of the utility model. DETAILED DESCRIPTION

[0017] The concept, specific structure and generated technical effect of the utility model will be further explained in combination with the drawings, so that the purpose, characteristics and effect of the utility model can be fully understood.

[0018] <EMBODIMENT>

[0019] As Figs. 1 to 3 Indicated, in this embodiment, the prefabricated pipe gallery hoisting device 10 is used to hoist large prefabricated pipe gallery 20;Prefabricated pipe gallery 20 is provided with at least one group of pipe gallery lifting lug 21, and each group of pipe gallery lifting lug 21 includes four pipe gallery lifting lug 21 arranged in rectangle under a kind of hoisting condition correspondingly.The prefabricated management hoisting device 10 includes balance beam 11, upper hoisting part 12 and lower hoisting part 13.

[0020] As Figs. 1 to 3As shown, the balance beam 11 is an I-shaped box girder structure used to install the upper hoisting part 12 and the lower hoisting part 13. In this embodiment, the balance beam 11 is welded from Q235B steel plates.

[0021] like Figs. 1 to 3 As shown, the upper lifting section 12 is located at the center of the top of the balance beam 11 and is used to connect with the hook 30 of the lifting machinery. The upper lifting section 12 includes three upper lifting lugs 121, two sling mounting shafts 122, and two upper slings 123.

[0022] Three lifting lugs 121 are arranged at intervals along the width of the balance beam 11 and are all fixedly mounted on the balance beam 11 by welding. In this embodiment, the lifting lugs 121 are welded from Q235B steel plates.

[0023] Two sling mounting shafts 122 are symmetrically arranged along the length of the balance beam 11; each sling mounting shaft 122 is fixedly mounted on three upper lifting lugs 121 along the width of the balance beam 11. The three-lug combination through-shaft structure can effectively adjust the stress on the sling mounting shaft 122.

[0024] Two upper slings 123 correspond to two sling mounting shafts 122, and each upper sling 123 is hooked to the corresponding sling mounting shaft 122 and the lifting fork of the hook 30. In this embodiment, the upper slings 123 are R01-30 type slings.

[0025] like Figs. 1 to 3 As shown, the lower hoisting section 13 is located at the bottom of the balance beam 11 and is used to connect with the precast pipe beam 20. The lower hoisting section 13 includes three hoisting units 13A arranged sequentially from the outside to the inside; each hoisting unit 13A corresponds to a set of pipe gallery lifting lugs 21 on the precast pipe gallery 20 to meet the corresponding hoisting requirements.

[0026] Each hoisting unit 13A contains four hoisting assemblies 131; the four hoisting assemblies 131 in each hoisting unit 13A are arranged in a rectangle with the length and width directions of the balance beam 11 as the long and short sides, respectively (e.g., Fig. 3 (As shown).

[0027] Each lifting assembly 131 has a lower lifting lug 131a, a hook 131b, and a lower sling 131c.

[0028] The lower lifting lug 131a is fixedly mounted on the balance beam 11 by welding. In this embodiment, the lower lifting lug 131a is welded from Q235B steel plate.

[0029] The hanging buckle 131b is detachably arranged on the lower lifting lug 131a; in the embodiment, the hanging buckle 131b is an arc-shaped hanging buckle. In the embodiment, the pipe gallery lifting lug 21 is provided with a detachable hanging buckle 22, which is also an arc-shaped hanging buckle; the arc-shaped hanging buckle is preferably an S-BX35-2 type unloading buckle.

[0030] The lower sling 131c is hung with the hanging buckle 131b and the hanging buckle 22 respectively, so that the balance beam 10 is connected with the prefabricated pipe gallery 20. In the embodiment, the lower sling 131c adopts an R02-20 type sling.

[0031] In the embodiment, the total length of the balance beam 11 is 4300 mm, the length direction spacing of the lower lifting lug 131a in the first group of working conditions is 4000 mm, the width direction spacing is 2450 mm, the length direction spacing of the lower lifting lug 131a in the second group of working conditions is 3550 mm, the width direction spacing is 1580 mm, and the length direction spacing of the lower lifting lug 131a in the third group of working conditions is 2450 mm, and the width direction spacing is 620 mm. The three groups of lifting working conditions can be flexibly used according to the actual situation on site, the arc-shaped unloading buckle is connected to the lifting lug in different working conditions during trial lifting, the horizontal state of the prefabricated pipe gallery can be adjusted, and different lifting working conditions can be used under different cross-sectional areas.

[0032] In the embodiment, the preparation and use process of the prefabricated pipe gallery lifting device 10 are as follows:

[0033] Step S1, process the balance beam 11 according to the design drawing, pay attention to firm welding, continuously carry out the welding process, and there are no defects such as gas holes and slag inclusions, the lifting lug part is subjected to flaw detection according to the relevant technical requirements, and stress relief treatment is carried out after welding.

[0034] Step S2, perform static load experiment, the rated design load of the balance beam 11 is 100T, and the static load experiment is performed according to 1.25 times, and the experimental weight is 125T.

[0035] Step S3, sling, fold the upper sling 123 and use it to hang on the lifting hook 30 of the lifting machinery, and fold the lower sling 131c and use it to hang on the hanging buckle 22 of the prefabricated pipe gallery 20.

[0036] Step S4, trial lifting, under the command of the commander, slightly lift the lifting hook 30, so that the upper sling 123 and the lower sling 131c are lifted, and then the lifting hook 30 is slowly lifted, the prefabricated pipe gallery 20 is lifted 100-200 mm away from the ground, the trial lifting is performed, the time is about 10 minutes, whether the connection between the balance beam and the sling and the lifting hook is reliable, and whether the performance of the lifting machinery is abnormal are checked, if the pipe gallery is inclined, the position of the arc-shaped unloading buckle and the lifting belt should be adjusted.

[0037] Step S5, hoist and position, hoist and position according to the requirements of the prefabricated pipe gallery special lifting scheme.

[0038] Step S6, sling removal: after the prefabricated pipe gallery 20 is stable, the hoisting machine slowly falls the hook until all unloading, the operation personnel step on the prefabricated pipe gallery 20 and remove the sling, and the operation personnel must hang the safety belt on a reliable hanging point during the sling removal process.

[0039] The above embodiment is a preferred case of the utility model and does not limit the protection scope of the utility model.

Claims

1. A pre-fabricated pipe gallery hoisting device, characterized in that, include: The balance beam is a box beam structure. The upper hoisting unit is located at the center of the top of the balance beam and is used to connect with the hoisting machinery. as well as The lower hoisting section, located at the bottom of the balance beam, is used to connect with the precast pipe beam. The lower hoisting section comprises multiple hoisting units arranged at intervals from the outside in. Each of the lifting units contains four lifting components arranged in a rectangle, the long side of which is in the direction of the length of the balance beam and the short side of which is in the direction of the width of the balance beam.

2. The prefabricated pipe gallery hoisting device according to claim 1, characterized in that: wherein The balance beam is in the shape of an "I".

3. The prefabricated pipe gallery hoisting device according to claim 1, characterized in that: wherein The upper hoisting section includes upper lifting lugs, upper lifting slings, and a sling mounting shaft. The upper lifting lug is fixedly mounted on the balance beam. The sling mounting shaft is fixedly mounted on the upper lifting lug. The upper sling is connected to the sling mounting shaft and the hook of the lifting machinery, respectively.

4. The prefabricated pipe gallery hoisting device according to claim 3, characterized in that: wherein The number of the sling mounting shaft and the number of the upper sling are both two. The two cable mounting shafts are arranged symmetrically along the length of the balance beam, and each cable mounting shaft is arranged along the width of the balance beam. The two upper slings are respectively connected to the two sling mounting shafts.

5. The prefabricated pipe gallery hoisting device according to claim 1, characterized in that: wherein Each of the lifting assemblies has a lower lifting lug and a lower lifting sling. The lower lifting lug is fixedly mounted on the balance beam. The lower sling is connected to the lower lifting lug and the prefabricated pipe gallery respectively.

6. The prefabricated pipe gallery hoisting device according to claim 5, characterized in that: wherein The prefabricated pipe gallery is provided with at least one set of pipe gallery lifting lugs that match at least one of the plurality of lifting units.

7. The prefabricated pipe gallery hoisting device according to claim 6, characterized in that: wherein, Both the lower lifting lug and the pipe gallery lifting lug are equipped with hooks for attaching the lower lifting cable.

8. The prefabricated pipe gallery hoisting device according to claim 7, characterized in that: wherein The hook is an arch-shaped hook.

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