Portal frame of portal crane

Abstract

The utility model discloses a portal frame of a portal crane, and relates to the technical field of portal cranes. The portal crane gantry comprises a cross beam assembly, supporting beams, supporting legs and connecting legs, the supporting legs are symmetrically locked at the bottom ends of the supporting beams, the bottom ends of the supporting legs are locked and aligned through the connecting legs, the supporting legs are connected with the supporting beams through reinforcing beams to form a triangular structure, and the cross beam assembly comprises two bottom cross beams, a top cross beam and a plurality of cross beams. The top cross beam and one bottom cross beam are connected through the cross beam, and the two bottom cross beams form a triangular structure. The top end part of the portal frame of the portal crane is a dense multi-dimensional triangular framework, so that the supporting strength can be ensured; the supporting legs below the cross beam assembly are of a triangular stable structure, and the tensile strength of the adjacent supporting legs is enhanced through the connecting legs. The structural strength of the portal frame of the portal crane is improved through the cooperation of the two parts, and it is guaranteed that during hoisting, even if a hoisted heavy object deviates, the portal frame is not prone to deformation under the influence of acting force in different directions.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, and more specifically to a gantry crane door frame. Background Art

[0002] Currently, fixed-column cantilever cranes or gantry cranes are commonly used to transport workpieces in workshops and factories. Gantry cranes with simple frame structures have limited lifting and hoisting capacity. Lifting heavier loads requires a higher level of structural stability. Based on this, the inventors developed this proposal. Utility Model Content

[0003] The purpose of the present invention is to provide a gantry crane gantry in order to solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] A gantry crane gantry includes a crossbeam assembly, a support beam, support legs, and connecting legs. The bottom end of the crossbeam assembly is locked to the support beam, and the bottom end of the support beam is symmetrically locked to the support legs. The bottom ends of the support legs are locked in position by connecting legs. The support legs are connected to the support beam through a reinforcing beam to form a triangular structure. The crossbeam assembly includes two bottom crossbeams, a top crossbeam, and several cross beams. The top crossbeam forms a triangular structure with a bottom crossbeam and two bottom crossbeams through the cross beam. Different crossbeam assemblies are arranged on the same bottom surface.

[0006] A preferred technical solution: the supporting legs are triangular structures, and a plurality of connecting rods are fixedly provided on the supporting legs.

[0007] A preferred technical solution: a plurality of movable wheel sets are installed at the bottom end of the connecting foot.

[0008] A preferred technical solution: The single-sided movable wheel group includes a wheel frame and a roller, and two rollers are rotatably mounted on a single wheel frame.

[0009] A better technical solution: bearings are set at the side ends of the rollers.

[0010] A better technical solution: The gantry of the single-sided gantry crane is provided with four moving wheel sets.

[0011] A preferred technical solution: The bottom end of the moving wheel set is adapted to be provided with a linear guide rail.

[0012] The beneficial effects of the utility model are as follows:

[0013] The top part of the gantry of the gantry crane in the present invention is a dense multi-dimensional triangular structure, which is conducive to ensuring the supporting strength; the supporting feet under the beam assembly are a triangular stable structure, which enhances the tensile strength of adjacent supporting feet by connecting the feet; together, the structural strength of the gantry crane gantry is improved to ensure that during lifting and hoisting, even if the hoisted weight is offset, the gantry is not easily deformed when affected by forces in different directions, thereby indirectly improving the service life of the gantry crane gantry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the partial structure of the top side end of the utility model;

[0016] Figure 3 It is a schematic diagram of the local structure of the bottom end of the utility model.

[0017] Figure markings: 1. Beam assembly; 11. Bottom beam; 12. Top beam; 13. Cross beam; 2. Support beam; 3. Support foot; 31. Connecting rod; 4. Connecting foot; 5. Reinforcement beam; 6. Moving wheel group; 61. Wheel frame; 62. Roller; 7. Linear guide rail; 8. Support block; 9. Transverse rod. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0020] like Figures 1 to 3As shown, this embodiment provides a gantry crane gantry, including a crossbeam assembly 1, a support beam 2, a support leg 3, and a connecting leg 4. The bottom end of the crossbeam assembly 1 is locked with the support beam 2, and the bottom end of the support beam 2 is symmetrically locked with the support leg 3. The bottom end of the support leg 3 is locked in position by the connecting leg 4. The support leg 3 is connected to the support beam 2 through the reinforcing beam 5 to form a triangular structure. The crossbeam assembly 1 includes two bottom crossbeams 11, a top crossbeam 12, and several cross beams 13. The top crossbeam 12 forms a triangular structure with one bottom crossbeam 11 and two bottom cross beams 11 through the cross beam 13. Different crossbeam assemblies 1 are arranged on the same bottom surface.

[0021] Furthermore, the support leg 3 is a triangular structure, and a plurality of connecting rods 31 are fixedly provided on the support leg 3 .

[0022] Furthermore, a plurality of movable wheel sets 6 are installed at the bottom end of the connecting foot 4 .

[0023] Furthermore, the unilateral movable wheel group 6 includes a wheel frame 61 and a roller 62, and two rollers 62 are rotatably mounted on a single wheel frame 61. A support block 8 can be provided between the wheel frame 61 and the connecting foot 4 for transition support.

[0024] Furthermore, a bearing is provided at the side end of the roller 62 .

[0025] Furthermore, the gantry of the single-sided gantry crane is provided with four movable wheel groups 6. When the gantry crane gantry is heavy, a servo motor can be installed on each movable wheel group 6 for driving, thereby ensuring sufficient driving power.

[0026] Furthermore, a linear guide rail 7 is adapted to be provided at the bottom end of the moving wheel set 6 .

[0027] The gantry crane gantry structure in the utility model has strong overall stability. When looking at the gantry crane gantry from the side, the two bottom cross beams 11 form a triangular structure with the top cross beam 12 through two cross beams 13; when looking at the gantry crane gantry from the front, one bottom cross beam 11 forms several triangular structures with the top cross beam 12 through several cross beams 13; usually a gantry crane gantry is provided with two groups of cross beam assemblies 1, and corresponding lifting assemblies are installed between the two cross beam assemblies 1, and then cooperate to form a gantry crane; the supporting legs 3 below the cross beam assembly 1 are also a triangular structure, and the tensile strength of the adjacent supporting legs 3 is enhanced by the connecting legs 4; in the middle of the two supporting legs 3, a transverse rod 9 can be provided to further enhance the tensile strength of the adjacent supporting legs 3.

Claims

1. A gantry crane gantry, characterized in that: It includes a beam assembly, a support beam, a support foot, and a connecting foot. The bottom end of the beam assembly is locked with the support beam, and the bottom end of the support beam is symmetrically locked with the support foot. The bottom end of the support foot is locked in position by the connecting foot. The support foot is connected to the support beam through a reinforcing beam to form a triangular structure. The beam assembly includes two bottom beams, a top beam, and several cross beams. The top beam forms a triangular structure with a bottom beam and two bottom beams through the cross beam. Different beam assemblies are arranged on the same bottom surface.

2. The gantry crane gantry according to claim 1, characterized in that: The supporting legs are triangular structures, and a plurality of connecting rods are locked on the supporting legs.

3. The gantry crane gantry according to claim 1, characterized in that: The bottom end of the connecting foot is equipped with a plurality of movable wheel groups.

4. The gantry crane gantry according to claim 3, characterized in that: The movable wheel group on one side includes a wheel frame and a roller, and two rollers are rotatably mounted on a single wheel frame.

5. The gantry crane gantry according to claim 4, characterized in that: A bearing is provided on the side end of the roller.

6. The gantry crane gantry according to claim 5, characterized in that: The gantry crane gantry on one side is provided with four moving wheel sets.

7. The gantry crane gantry according to claim 6, characterized in that: The bottom end of the moving wheel group is adapted to be provided with a linear guide rail.

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