Portal frame

Abstract

The utility model discloses a portal frame structure which comprises a cross beam and supporting legs, a reinforcing rib is arranged on the top face of the cross beam in the length direction, and an unloading groove with an upward opening in the vertical direction is formed in the top end of the reinforcing rib so that the section of the reinforcing rib in the width direction can be in an M shape. The reinforcing ribs are arranged on the top surface of the cross beam of the gantry crane in the length direction, and the unloading grooves with the upward openings in the vertical direction are formed in the top ends of the reinforcing ribs, so that the sections of the reinforcing ribs in the width direction are M-shaped, the rigidity of the cross beam can be improved, the risk of stress fracture is reduced, and the cross beam is better reinforced.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane technology, and in particular to a gantry frame. Background Technology

[0002] A gantry crane is a type of lifting equipment suitable for mold manufacturing, auto repair shops, mines, civil construction sites, and other applications requiring lifting capabilities. It is commonly used in construction for material transport and worker access, achieving mechanized lifting. This reduces manpower, lowers production and operating costs, and improves work efficiency. Because a gantry crane consists of a crossbeam and legs connected to both ends of the crossbeam's base, with hooks between the legs for lifting, the crossbeam experiences downward tension when lifting heavy objects. Prolonged use while lifting heavy loads can lead to the crossbeam breaking. Utility Model Content

[0003] The purpose of this utility model is to provide a gantry frame with high strength.

[0004] To achieve the above objectives, this utility model proposes a gantry structure, including a crossbeam and legs. A reinforcing rib is provided on the top surface of the crossbeam along the length direction, and the top of the reinforcing rib is provided with an unloading groove with an upward opening in the vertical direction, so that the cross-section of the reinforcing rib in the width direction is "M" shaped.

[0005] Preferably, mounting portions for connecting to the support legs are provided at both ends of the bottom surface of the crossbeam, and the length of the reinforcing rib is greater than or equal to the distance between the two mounting portions.

[0006] Preferably, the reinforcing ribs are hollow structures.

[0007] Preferably, the internal cavity of the reinforcing rib is also provided with multiple support partitions at intervals along the length direction.

[0008] Preferably, the two ends of the reinforcing rib in the length direction have a gradually decreasing height in the vertical direction to form two inclined surfaces at both ends of the reinforcing rib that connect to the top surface of the crossbeam.

[0009] Preferably, the two sides of the reinforcing rib are provided with multiple through holes spaced apart in the length direction.

[0010] The beneficial effects of this utility model are as follows:

[0011] By setting reinforcing ribs along the length of the top surface of the gantry crane's crossbeam, and providing unloading grooves with vertical openings at the top of the reinforcing ribs, the cross-section of the reinforcing ribs in the width direction is "M" shaped, which can improve the rigidity of the crossbeam, reduce the risk of stress fracture, and better reinforce the crossbeam. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the crossbeam structure in a preferred embodiment of the present invention (angle one);

[0013] Figure 2 This is a cross-sectional view of the crossbeam in a preferred embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the crossbeam structure in a preferred embodiment of the present invention (angle two). Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0017] See Figure 1-3 As shown in the figure, as a preferred embodiment of the present invention, this embodiment proposes a gantry structure, which includes a crossbeam 1 and legs (not shown in the figure). Two mounting portions 13 for mounting the legs are provided on the bottom surface 12 in the vertical direction of the crossbeam 1, for mounting two legs at both ends in the length direction of the crossbeam 1. A reinforcing rib 2 is provided on the top surface 11 in the vertical direction of the crossbeam 1. The reinforcing rib 2 extends in the length direction of the top surface 11 of the crossbeam 1, effectively thickening the crossbeam 1 in the vertical direction, reducing the risk of crossbeam 1 breaking during the lifting of heavy objects, and improving the rigidity of the crossbeam 1. Simultaneously, to improve the supporting strength of the reinforcing rib 2, the length of the reinforcing rib 2 is greater than or equal to the distance between the two mounting portions 13.

[0018] In this embodiment, the reinforcing rib 2 adopts a hollow structure, and a V-shaped unloading groove 21 with an upward opening is provided at the top of the vertical direction of the reinforcing rib 2, so that the cross-section of the reinforcing rib 2 in the width direction is "M" shaped, which can improve the rigidity of the reinforcing rib 2 in the length direction and prevent the crossbeam 1 from breaking. In other embodiments, a solid reinforcing rib 2 can also be used, which can also play a role in reinforcing the crossbeam 1, but this will increase the weight of the crossbeam and the cost of the gantry frame. Since the reinforcing rib 2 in this embodiment is a hollow structure, in order to improve the rigidity of the reinforcing rib 2 in the width direction, multiple support partitions 24 are arranged at intervals in the length direction of the internal cavity of the reinforcing rib 2, which can better reinforce the crossbeam 1. In this embodiment, the shape of the support partition 24 is adapted to the shape of the internal cavity of the reinforcing rib. In other embodiments, a cross-shaped support partition connected to the sidewalls of the internal cavity of the reinforcing rib in the vertical and horizontal directions can also be used, as long as it can support the reinforcing rib. Meanwhile, multiple through holes 22 are provided on both sides of the reinforcing rib 2 at intervals along the length direction, which are used to reduce the weight of the reinforcing rib 2 and improve the structural rigidity and fatigue strength of the reinforcing rib 2.

[0019] In order to further reduce costs and reduce the weight of the reinforcing rib 2, in this embodiment, the two ends of the reinforcing rib 2 in the length direction are gradually reduced in height in the vertical direction to form two inclined surfaces 23 at the ends of the reinforcing rib that are connected to the top surface 11 of the crossbeam 1.

[0020] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A portal comprising a crossbeam and a leg, characterized in that A reinforcing rib is arranged on the top surface of the cross beam along the length direction, and the top end of the reinforcing rib is provided with an unloading groove which is open upward in the vertical direction, so that the section of the reinforcing rib in the width direction is in the shape of "M".

2. The portal frame of claim 1, wherein Two mounting portions are arranged on the bottom surface of the cross beam at both ends and connected with the legs, and the length of the reinforcing rib is greater than or equal to the distance between the two mounting portions.

3. The gantry of claim 1, wherein The reinforcing rib is a hollow structure.

4. The gantry of claim 3 wherein, Multiple support partitions are further arranged in the internal cavity of the reinforcing rib along the length direction.

5. The gantry of claim 1 wherein, The two ends of the reinforcing rib along the length direction are provided with two inclined surfaces which gradually decrease in height in the vertical direction, so that the two ends of the reinforcing rib are connected with the top surface of the cross beam.

6. The gantry of claim 1 wherein, Multiple through holes are arranged on the two side surfaces of the reinforcing rib along the length direction.

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