Stress enhancement compensator for bailey bridge cross beam

Abstract

The utility model provides a Bailey bridge cross beam stress enhancement compensator, a plurality of stress enhancement compensators are provided, the plurality of stress enhancement compensators are arranged on the cross beam in a front-back symmetry mode, the cross beam comprises an upper cross beam part and a lower cross beam part, and each stress enhancement compensator comprises a lower fixing seat, an upper limiting seat and a connecting shaft. The stress enhancement compensator has the advantages that the stress enhancement compensator is simple and reasonable in structure, the stress of a new cross beam product is more uniform by arranging the stress enhancement compensator in the cross beam, and the old cross beam product can be reused after being trimmed and renovated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bailey bridge erection technology, especially relates to a stress enhancement compensator for bailey bridge crossbeam. BACKGROUND

[0002] Bailey piece is also called bailey frame, bailey beam or truss, which was first invented by a British engineer during the World War II to solve the need of rapid bridge erection during the war and named after him. It can be used for highway bridges, assembled gantry cranes, guide beams, bridge erection machines, hanging baskets and the like, and has the characteristics of simple structure, convenient transportation, rapid erection, large load capacity, good interchangeability and strong adaptability.

[0003] The crossbeam is one of the important component parts of the bailey bridge, and the bailey bridge generally needs to bear a large load. Therefore, when the bailey bridge is assembled, a crossbeam reinforcing rib plate is generally welded on the crossbeam to improve the overall firmness of the crossbeam and enable the crossbeam to bear a larger load. However, after long-term use, the crossbeam and the crossbeam reinforcing rib plate may be locally stressed unevenly due to insufficient stress, resulting in bending deformation and greatly reducing the load capacity of the crossbeam, thereby causing resource waste due to the need to replace the new crossbeam. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a stress enhancement compensator for bailey bridge crossbeam, which has a simple and reasonable structure, enables the new crossbeam product to bear stress more evenly, and enables the old crossbeam product to be used again after being repaired and renovated.

[0005] The utility model is achieved in the following manner:

[0006] A stress enhancement compensator for bailey bridge crossbeam, characterized in that the stress enhancement compensator is provided in multiple numbers and symmetrically arranged in the crossbeam, the crossbeam comprises an upper crossbeam component and a lower crossbeam component, and the stress enhancement compensator is arranged between the upper crossbeam component and the lower crossbeam component, characterized in that the stress enhancement compensator comprises a lower fixing seat arranged at the upper end of the lower crossbeam component and serving to abut against the lower crossbeam component and fix the whole, an upper limiting seat arranged at the lower end of the upper crossbeam component and serving to abut against the upper crossbeam component and limit the movement of the whole, and a connecting shaft for connecting the lower fixing seat and the upper limiting seat.

[0007] Further, the lower fixing seat is convex in shape, the lower fixing seat is arranged above the lower crossbeam component, the lower fixing seat is provided with a groove for facilitating the connection of the connecting shaft, the groove and the connecting portion of the connecting shaft are provided with threads for mutual cooperation, and the lower end of the connecting shaft is fixedly connected with the lower fixing seat through the threads.

[0008] Further, the upper limit seat is inverted convex, the upper limit seat is arranged below the upper cross beam component, the upper end of the upper limit seat is provided with a convex, the upper cross beam component is internally provided with a limiting hole matched with the convex, the convex of the upper limit seat is just inserted into the limiting hole of the upper cross beam component, the upper limit seat is internally provided with a connecting hole, the connecting hole and the upper end of the connecting shaft are internally provided with threads matched with each other, the upper limit seat is fixedly connected with the upper end of the connecting shaft through the threads in the connecting hole, and the upper end of the connecting shaft is arranged above the upper cross beam component through the limiting hole of the upper cross beam component;

[0009] Further, the part of the connecting shaft extending out of the upper cross beam component is provided with a nut, the nut is fixed on the upper end of the connecting shaft through threads, and the lower end of the nut is well abutted against the upper cross beam component.

[0010] Further, the connecting shaft is internally provided with an upper nut set and a lower nut set, the lower nut set is arranged in the middle lower part of the connecting shaft and above the lower fixing seat, the lower nut set is tightly arranged on the lower fixing seat in a downward rotating and tightening mode in the connecting shaft, the upper nut set is arranged in the middle upper part of the connecting shaft and below the upper limit seat, the upper nut set is tightly arranged in the limiting hole of the upper cross beam component in an upward rotating and tightening mode in the connecting shaft, and the upper cross beam component is tightly abutted against the upper nut set.

[0011] Further, the cross beam can be arranged at each place requiring stress compensation of the cross beam through professional instrument detection and the help of drilling equipment.

[0012] Compared with the prior art, the stress enhancing compensator has the beneficial effects that:

[0013] The stress enhancing compensator can meet the stress requirement of a larger load, fully play the stress performance of the cross beam, reduce the use of stiffening plates, reduce the labor and material use in the process of welding the stiffening plates on the cross beam, reduce the fire operation, meet the low-carbon environmental protection requirement, meet the free reinforcement or enhancement of the cross beam under different stress conditions, can be installed at the place where the cross beam bears a larger stress to meet the stress requirement, and can be used in the construction of the Bailey bridge again after the cross beam product is repaired and renewed by adding the stress enhancing compensator, so that the old product can be reused and the steel resources are saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a cross beam structure diagram.

[0015] Figure 2 It is Figure 1 It is a middle A direction sectional view.

[0016] Among them, 1 is the force-enhancing compensator, 11 is the lower fixed seat, 12 is the upper limit seat, 13 is the connecting shaft, 14 is the upper nut assembly, 15 is the lower nut assembly, 2 is the crossbeam, 21 is the upper crossbeam component, 211 is the limiting hole, 22 is the lower crossbeam component, and 3 is the nut. Detailed Implementation

[0017] like Figures 1-2 As shown, a stress-enhancing compensator for a Bailey bridge crossbeam is disclosed. Multiple stress-enhancing compensators 1 are symmetrically arranged within a crossbeam 2. The crossbeam 2 includes an upper crossbeam component 21 and a lower crossbeam component 22. The stress-enhancing compensators 1 are disposed between the upper crossbeam component 21 and the lower crossbeam component 22. The stress-enhancing compensator 1 includes a lower fixing seat 11 located at the upper end of the lower crossbeam component 22, serving to abut against the lower crossbeam component 22 and fix the entire structure; an upper fixing seat 12 located at the lower end of the upper crossbeam component 21, serving to abut against the upper crossbeam component 21 and restrict overall movement; and a connecting shaft 13 connecting the lower fixing seat 11 and the upper fixing seat 12.

[0018] Furthermore, the lower fixing seat 11 is generally convex and is located above the lower crossbeam component 22. The lower fixing seat 11 has a groove for connecting the connecting shaft 13. The groove and the part connecting the connecting shaft 13 are provided with threads that cooperate with each other. The lower end of the connecting shaft 13 is fixedly connected to the lower fixing seat 11 through the threads.

[0019] Furthermore, the upper limit seat 12 is inverted convex and is located below the upper crossbeam component 21. The upper end of the upper limit seat 12 has a protrusion, and the upper crossbeam component 21 has a limiting hole 211 that cooperates with the protrusion. The protrusion of the upper limit seat 12 is inserted into the limiting hole 211 of the upper crossbeam component 21. The upper limit seat 12 has a connecting hole, and the connecting hole and the upper end of the connecting shaft 13 have threads that cooperate with each other. The upper limit seat 12 is fixedly connected to the upper end of the connecting shaft 13 through the threads in the connecting hole, and the upper end of the connecting shaft 13 passes through the limiting hole 211 of the upper crossbeam component 21 and is located above the upper crossbeam component 21.

[0020] Furthermore, a nut 3 is provided on the portion of the connecting shaft 13 extending above the upper crossbeam component 21. The nut 3 is fixed to the upper end of the connecting shaft 13 by threaded rotation, and the lower end of the nut 3 abuts well against the upper crossbeam component 21.

[0021] Further, the connecting shaft 13 is internally provided with an upper nut set 14 and a lower nut set 15, the lower nut set 15 is arranged in the lower part of the connecting shaft 13 and above the lower fixing seat 11, the lower nut set 15 is rotated and screwed downward in the connecting shaft 13 to tightly make the lower fixing seat 11 abut against the lower cross beam component 22, the upper nut set 14 is arranged in the upper part of the connecting shaft 13 and below the upper limiting seat 12, the upper nut set 14 is rotated and screwed upward in the connecting shaft 13 to tightly make the upper limiting seat 12 well clamped in the limiting hole 211 of the upper cross beam component 21 and tightly abut against the upper cross beam component 21.

[0022] Further, the cross beam 2 is detected by professional instruments, and the force enhancement compensator 1 can be arranged at each position requiring force compensation of the cross beam 2 by the help of drilling equipment.

[0023] The utility model is not limited to the above-mentioned embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some replacement and deformation to some technical features according to the disclosed technical content without creative labor, and these replacement and deformation are all within the protection scope of the utility model.

Claims

1. A stress-enhancing compensator for a beam of a bailey bridge, the stress-enhancing compensator (1) is provided in a plurality, the plurality of stress-enhancing compensators (1) are symmetrically arranged in a beam (2) in front and back, the beam (2) comprises an upper beam part (21) and a lower beam part (22), the stress-enhancing compensator (1) is arranged between the upper beam part (21) and the lower beam part (22), characterized in that, The stress enhancement compensator (1) comprises a lower fixed seat (11) arranged on the upper end of the lower beam component (22) and used for resisting the lower beam component (22) and fixing the whole, an upper limiting seat (12) arranged on the lower end of the upper beam component (21) and used for supporting the upper beam component (21) and limiting the whole movement, and a connecting shaft (13) used for connecting the lower fixed seat (11) and the upper limiting seat (12).

2. The stress-enhancing compensator for use in a beam of a bailey bridge according to claim 1, characterized in that: The lower fixed seat (11) is convex as a whole, the lower fixed seat (11) is arranged above the lower beam component (22), the lower fixed seat (11) is provided with a groove for facilitating the connection of the connecting shaft (13), the groove is provided with threads matched with the connecting shaft (13), and the lower end of the connecting shaft (13) is fixedly connected with the lower fixed seat (11) through the threads.

3. The stress-enhancing compensator for use in a beam of a bailey bridge according to claim 1, characterized in that: The upper limiting seat (12) is reverse convex, the upper limiting seat (12) is arranged below the upper beam component (21), the upper end of the upper limiting seat (12) is provided with a protrusion, the upper beam component (21) is provided with a limiting hole (211) matched with the protrusion, the protrusion of the upper limiting seat (12) is arranged in the limiting hole (211) of the upper beam component (21), the upper limiting seat (12) is provided with a connecting hole, the connecting hole is provided with threads matched with the upper end of the connecting shaft (13), the upper limiting seat (12) is fixedly connected with the upper end of the connecting shaft (13) through the threads in the connecting hole, and the upper end of the connecting shaft (13) is arranged above the upper beam component (21) through the limiting hole (211) of the upper beam component (21).

4. The stress-enhancing compensator for use in a beam of a bailey bridge according to claim 3, characterized in that: The upper end of the connecting shaft (13) is provided with a nut (3), the nut (3) is fixed on the upper end of the connecting shaft (13) through threads, and the lower end of the nut (3) is arranged against the upper beam component (21).

5. The stress-enhancing compensator for use in a beam of a bailey bridge according to claim 1, characterized in that: The connecting shaft (13) is provided with an upper nut group (14) and a lower nut group (15), the lower nut group (15) is arranged in the middle lower part of the connecting shaft (13) and above the lower fixed seat (11), the lower nut group (15) is arranged in the connecting shaft (13) and is tightly arranged against the lower fixed seat (11) through downward rotation and tightening, the upper nut group (14) is arranged in the middle upper part of the connecting shaft (13) and below the upper limiting seat (12), and the upper nut group (14) is arranged in the connecting shaft (13) and is tightly arranged in the limiting hole (211) of the upper beam component (21) through upward rotation and tightening, and the upper beam component (21) is tightly supported.

6. The stress-enhancing compensator for use in a beam of a bailey bridge according to claim 1, characterized in that: The beam (2) is detected by professional instruments, and the stress enhancement compensator (1) is arranged at each place requiring stress compensation of the beam (2) through the help of drilling equipment.

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