CN219314377U - Lifting appliance for splicing wide beam - Google Patents
Lifting appliance for splicing wide beam Download PDFInfo
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- CN219314377U CN219314377U CN202320198405.5U CN202320198405U CN219314377U CN 219314377 U CN219314377 U CN 219314377U CN 202320198405 U CN202320198405 U CN 202320198405U CN 219314377 U CN219314377 U CN 219314377U
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The disclosure relates to the technical field of bridge construction, in particular to a girder splicing lifting appliance. The device comprises a primary balance beam, a secondary balance beam and a connecting piece, wherein the secondary balance beam is vertically and crosswise arranged below the primary balance beam, and the primary balance beam is connected with the secondary balance beam through the connecting piece; the number of the secondary balance beams is four, and every two adjacent secondary balance beams are symmetrically arranged along the central line of the primary balance beam in the length direction or the central line of the primary balance beam in the width direction; through holes are respectively formed in two ends of the secondary balance beam, hanging rods are arranged in the through holes in a penetrating mode, one ends of the hanging rods, extending out of the through holes, penetrate through the width-spliced beams, and the hanging rods are used for hanging the width-spliced beams. Through the setting of one-level compensating beam, connecting piece, jib and second grade compensating beam, can design a hoist that can satisfy 700 tons and splice wide roof beam hoist and mount, the position design of the relative one-level compensating beam of second grade compensating beam in this application moreover can avoid hoist and mount unstable of process, guarantees that hoist and mount splice wide roof beam can not take place the skew.
Description
Technical Field
The disclosure relates to the technical field of bridge construction, in particular to a girder splicing lifting appliance.
Background
The lifting appliance is widely applied to the lifting industry, special rigging such as lifting hooks, steel wire ropes, chains and the like are commonly used in the lifting appliance, lifting suction cups, clamps, forks and the like can be used on a crane for a long time as a special lifting appliance, and also can be used as a replaceable auxiliary lifting appliance to be hung on the lifting hook for temporary use, and the lifting appliance is commonly used for multi-cargo warehouse and storage yard so as to improve the working efficiency.
In the high-speed composite line construction process, a spliced wide beam is required to be erected on site, and the spliced wide beam is a part where a ramp in an intercommunication area is connected with a main line of a road, and is spliced and cast-in-situ with the main line box beam, so the spliced wide beam is named. The spliced wide box girder is of a web plate unequal-height single box single chamber structure and has multiple spans, for example, in the existing construction, the girder has two spans of 40 meters and 50 meters, the girder height is 3 meters, and the girder width is 5.75 meters and 6.75 meters. The weight of the spliced wide beam with the span of 50 meters is 700 tons, and the conventional spliced wide beam lifting appliance cannot be lifted.
Disclosure of Invention
In order to solve the technical problem, the present disclosure provides a girder hanger.
The utility model provides a lifting appliance, which comprises a primary balance beam, a secondary balance beam and a connecting piece, wherein the secondary balance beam is vertically and crosswise arranged below the primary balance beam, and the primary balance beam and the secondary balance beam are connected through the connecting piece;
the number of the secondary balance beams is four, and every two adjacent secondary balance beams are symmetrically arranged along the central line of the primary balance beam in the length direction or the central line of the primary balance beam in the width direction;
through holes are respectively formed in two ends of the secondary balance beam, hanging rods are arranged in the through holes in a penetrating mode, one ends of the hanging rods, extending out of the through holes, penetrate through the width-spliced beams, and the hanging rods are used for hanging the width-spliced beams.
Optionally, a plurality of lifting holes are symmetrically arranged at two ends of the primary balance beam, and the lifting holes are used for being connected with the conveyor.
Optionally, the lifting holes are provided with four groups, each group comprises two lifting holes, and every two adjacent lifting holes are symmetrically arranged along the central line of the length direction or the central line of the width direction of the primary balance beam.
Optionally, the lifting holes at the same end of the primary balance beam are uniformly distributed.
Optionally, the connector comprises a male connector and a female connector;
the female joint is arranged on the primary balance beam, a groove is formed at one end, far away from the primary balance beam, of the female joint, the male joint is arranged on the secondary balance beam, and the male joint is inserted into the groove formed by the female joint.
Optionally, the material of the primary balance beam is Q550D, the maximum thickness is less than or equal to 20mm, and the allowable stress is 337.5Mpa.
Optionally, the material of the secondary balance beam is Q355C, the maximum thickness is less than or equal to 20mm, and the allowable stress is 227.7Mpa.
Alternatively, the material of the connection is 42CrMo and the allowable stress is 227.7Mpa.
Optionally, the boom is made of 40CrNiMoA, the maximum thickness is less than or equal to 100mm, and the allowable stress is 606.8Mpa.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the utility model provides a piece together wide roof beam hoist, the second grade compensating beam passes through the connecting piece to be installed in the lower extreme of one-level compensating beam, and the jib is connected to the second grade compensating beam, and the jib is connected and is pieced together wide roof beam, through one-level compensating beam, connecting piece, jib and the setting of second grade compensating beam, can design a hoist that can satisfy 700 tons and piece together wide roof beam hoist and mount, the position design of the relative one-level compensating beam of second grade compensating beam in this application in addition can also avoid hoist and mount process's unstability, guarantees that hoist and mount piece together wide roof beam can not take place the skew.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a front view of a girder erection device according to the embodiments of the disclosure;
FIG. 2 is a top view of a girder erection device according to the embodiments of the disclosure;
fig. 3 is a schematic view of a connector according to an embodiment of the disclosure.
1, a first-stage balance beam; 11. a hoisting hole; 2. a secondary balance beam; 21. a through hole; 3. a connecting piece; 31. a male connector; 32. a female joint; 4. and (5) hanging rods.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The present disclosure provides a lifting appliance, as shown in fig. 1, including a primary balance beam 1, a secondary balance beam 2 and a connecting piece 3, the secondary balance beam 2 in this embodiment is all perpendicularly crossed and disposed below the primary balance beam 1, and the primary balance beam 1 and the secondary balance beam 2 are connected through the connecting piece 3. Further, the number of the two-stage balance beams 2 is four, and every two adjacent two-stage balance beams 2 are symmetrically arranged along the central line of the length direction or the central line of the width direction of the first-stage balance beam 1. After the relative positions of the secondary balance beam 2 and the primary balance beam 1 are determined, the position of the spliced wide beam during hoisting can be further ensured, so that the lifting appliance cannot deviate during hoisting the spliced wide beam, and instability in the hoisting process is avoided. As shown in fig. 2, through holes 21 are respectively formed at two ends of the secondary balance beam 2, a hanging rod 4 is penetrated in the through holes 21, one end of the hanging rod 4 extending out of the through holes 21 is penetrated in the spliced wide beam, and the hanging rod 4 is used for hanging the spliced wide beam. In the lifting process of the lifting appliance, a plurality of lifting holes are formed in the width-spliced girder, the lifting rod 4 is matched with the lifting holes, the lifting rod is arranged in the lifting holes in a penetrating mode, one end, extending out of the lifting holes, of the lifting rod is fixed through fixing devices such as nuts, and then the fixing of the width-spliced girder is achieved, so that the lifting appliance can lift the width-spliced girder, and the width-spliced girder is moved to a corresponding position. Through the setting of one-level compensating beam 1, connecting piece 3 and second grade compensating beam 2 in this embodiment, can design a hoist that can satisfy 700 tons and piece together wide roof beam, the second grade compensating beam 2 in this embodiment can avoid the unstability of hoist and mount process moreover for the position design of one-level compensating beam 1, guarantees that hoist and mount piece together wide roof beam can not take place the skew.
As shown in fig. 2, in the present embodiment, a plurality of lifting holes 11 are symmetrically provided at both ends of the primary balance beam 1, and the lifting holes 11 are used for connection with a carrier. The end beam of the carrier passes through the hoisting hole 11, and the part of the end beam extending out of the hoisting hole 11 is also connected through nuts, so that the carrier is fixed with the primary balance beam 1, and the carrier is used for hoisting the spliced wide beam.
Furthermore, in order to ensure the stability during the hoisting, four groups of hoisting holes 11 are provided, each group is provided with two hoisting holes 11, and every two adjacent groups of hoisting holes 11 are symmetrically arranged along the central line of the length direction or the central line of the width direction of the primary balance beam 1. The hoisting hole 11 is connected with the end beam of the carrier, and the stability of the hoisting process is guaranteed jointly by setting the relative position of the hoisting hole 11 on the primary balance beam 1, so that the primary balance beam 1 cannot deviate when the carrier is connected with the primary balance beam 1 and is combined with the relative position of the secondary balance beam 2.
In order to ensure uniform stress, the hoisting holes 11 at the same end of the primary balance beam 1 are uniformly distributed. Therefore, when the carrier is connected with the primary balance beam 1 to hoist the spliced girder, the bearing of each hoisting hole 11 is the same, and the phenomenon of excessive bearing of a certain hoisting hole 11 can not be generated.
As for the connector 3, as shown in fig. 3, the connector 3 includes a male connector 31 and a female connector 32; the female connector 32 is arranged on the primary balance beam 1, a groove is formed at one end of the female connector 32 far away from the primary balance beam 1, the male connector 31 is arranged on the secondary balance beam 2, and the male connector 31 is inserted into the groove formed by the female connector 32. Specifically, two connecting plates are arranged on the male connector 31, three connecting plates are arranged on the female connector 32, and when the male connector 31 is spliced with the female connector 32, the connecting plates of the male connector 31 and the connecting plates of the female connector 32 are mutually clamped together, so that the relative positions between the primary balance beam 1 and the secondary balance beam 2 cannot be mutually changed, and firm connection of the primary balance beam 1 and the secondary balance beam 2 is formed.
In the embodiment, the material of the primary balance beam 1 is Q550D, the maximum thickness is less than or equal to 20mm, and the allowable stress is 337.5Mpa. The stress at the connecting end beam of the first-stage balance beam 1 is larger, and the stress of the first-stage balance beam 1 meets the requirement after calculation when the bearing is 700t, sigma=66.5 MPa < [ sigma ] =337.5 MPa.
The material of the secondary balance beam 2 is Q355C, the maximum thickness is less than or equal to 20mm, and the allowable stress is 227.7Mpa. Through calculation, when the bearing is 700t, sigma=86.3 MPa < [ sigma ] =227.7 MPa of the secondary balance beam 2, so that the stress of the secondary balance beam 2 also meets the requirement.
In particular for the connection 3, the material of the connection 3 is 42CrMo and the allowable stress is 227.7Mpa. The connecting piece 3 comprises a male connector 31 and a female connector 32, the stress is complex, but the stress of each part of the connecting piece 3 is less than 227.7Mpa after calculation, and the requirements are met.
Specifically, the boom 4 is made of 40CrNiMoA, the maximum thickness is less than or equal to 100mm, and the allowable stress is 606.8Mpa. The suspender 4 comprises a straight rod part and a threaded part, wherein the shearing stress of the straight rod part is 167Mpa, and the shearing stress of the threaded part is 350.3Mpa, which are both smaller than the allowable stress.
Through the verification, the stress of each part of the lifting appliance in the embodiment is smaller than the allowable stress, and the lifting of the 700t spliced wide beam can be met.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The width-splicing beam lifting appliance is characterized by comprising a primary balance beam (1), a secondary balance beam (2) and a connecting piece (3), wherein the secondary balance beam (2) is vertically and crosswise arranged below the primary balance beam (1), and the primary balance beam (1) and the secondary balance beam (2) are connected through the connecting piece (3);
the number of the two-stage balance beams (2) is four, and every two adjacent two-stage balance beams (2) are symmetrically arranged along the central line of the length direction or the central line of the width direction of the primary balance beam (1);
through holes (21) are respectively formed in two ends of the secondary balance beam (2), a hanging rod (4) is arranged in the through holes (21) in a penetrating mode, one end of the hanging rod (4) extending out of the through holes (21) is arranged in the spliced wide beam in a penetrating mode, and the hanging rod (4) is used for hanging the spliced wide beam.
2. The girder lifting appliance according to claim 1, wherein a plurality of lifting holes (11) are symmetrically arranged at two ends of the primary balance girder (1), and the lifting holes (11) are used for being connected with a carrier.
3. The girder hanger according to claim 2, wherein the lifting holes (11) are provided with four groups, each group comprises two lifting holes (11), and each two adjacent groups of lifting holes (11) are symmetrically arranged along a central line in the length direction or a central line in the width direction of the primary balance girder (1).
4. The girder hanger according to claim 2, wherein the hoisting holes (11) at the same end of the primary balance girder (1) are uniformly distributed.
5. The girder hanger according to claim 1, wherein said connection (3) comprises a male connector (31) and a female connector (32);
the female connector (32) is arranged on the primary balance beam (1), a groove is formed in one end, far away from the primary balance beam (1), of the female connector (32), the male connector (31) is arranged on the secondary balance beam (2), and the male connector (31) is inserted into the groove formed by the female connector (32).
6. The girder erection lifting appliance according to claim 1, wherein the primary balance girder (1) is made of Q550D, the maximum thickness is less than or equal to 20mm, and the allowable stress is 337.5Mpa.
7. The girder hanger according to claim 1, wherein the material of the secondary balance beam (2) is Q355C, the maximum thickness is 20mm or less, and the allowable stress is 227.7Mpa.
8. The girder sling according to claim 1, characterised in that the material of the connection piece (3) is 42CrMo and the allowable stress is 227.7Mpa.
9. The girder hanger according to claim 1, wherein the boom (4) is made of 40CrNiMoA with a maximum thickness of 100mm or less and allowable stress of 606.8Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320198405.5U CN219314377U (en) | 2023-01-16 | 2023-01-16 | Lifting appliance for splicing wide beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320198405.5U CN219314377U (en) | 2023-01-16 | 2023-01-16 | Lifting appliance for splicing wide beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219314377U true CN219314377U (en) | 2023-07-07 |
Family
ID=87004818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320198405.5U Active CN219314377U (en) | 2023-01-16 | 2023-01-16 | Lifting appliance for splicing wide beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219314377U (en) |
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2023
- 2023-01-16 CN CN202320198405.5U patent/CN219314377U/en active Active
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