Rigid supporting structure for large-span gantry crane

Abstract

The utility model discloses a rigid supporting structure for a large-span gantry crane, which relates to the technical field of crane supporting frames, and comprises a supporting frame, a supporting cross beam assembly and AGV (automatic guided vehicle) driving wheels, and the supporting cross beam assembly is mounted on the supporting frame; the AGV driving wheels are located on the two sides below the supporting frame. The double rods on the double-head air cylinder stretch out and draw back to drive the outer beam to move, the outer beam stably drives the supporting frame to move towards the two sides under the action of the sliding rail, and the distance between the two sides of the supporting frame can be adjusted, so that the span of the supporting structure is adjustable, and the supporting structure can be used for goods with large sizes and narrow room doors in an adjustable mode. And the use scene limitation is reduced, the adaptability is higher, and extended use is more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of crane support frames, and more specifically to a rigid support structure for a long-span gantry crane. Background Art

[0002] In the production and production logistics processes of modern society, there are often some objects with high weight and large volume, which exceed the load-bearing range of manpower or ordinary mechanical devices. A crane is a hoisting machine that vertically lifts such objects within a certain range for hoisting. The types of cranes include large bridge cranes and gantry cranes, etc.

[0003] The traditional support frame for a gantry crane is usually an integrated structure. This not only makes it difficult to expand the span of the support frame to adapt to the hook being placed above the goods for larger goods, but also makes it difficult to reduce the adaptable span of the support frame to enter the room when moving into the room for a relatively narrow room door. The limitations of the usage scenarios are relatively high, the adaptability is poor, and it is not convenient to expand the use.

[0004] Based on the above background, a rigid support structure for a long-span gantry crane is thus proposed to solve the problems raised. Summary of the Invention

[0005] Other features and advantages of the utility model will be described in the following specification, and will become partially obvious from the specification, or will be understood by implementing the utility model. The objectives and other advantages of the utility model can be achieved and obtained through the structures specifically pointed out in the specification and other specification drawings.

[0006] The purpose of the utility model is to overcome the above deficiencies and provide a rigid support structure for a long-span gantry crane.

[0007] To achieve the above objective, the technical solution of the utility model is: a rigid support structure for a long-span gantry crane, comprising: a support frame, a support crossbeam assembly, and AGV drive wheels. The support crossbeam assembly is installed on the support frame; the AGV drive wheels are located on both sides under the support frame; wherein, the support crossbeam assembly includes an outer beam and a middle beam. There are two outer beams, and they are respectively movably installed on both sides of the middle beam through slide rails. A double-headed cylinder is arranged in the middle beam. The double rods on the double-headed cylinder respectively pass through both sides of the middle beam and are connected to the inner sides of the outer beams. The support frame is installed on the lower side of the outer beam.

[0008] Preferably, slide rails are installed on both the upper and lower sides of the middle beam.

[0009] Preferably, bases are installed on both sides under the support frame.

[0010] Preferably, the AGV drive wheels are located at the bottoms of the bases on both sides under the support frame.

[0011] Preferably, a single-headed cylinder is installed on the base.

[0012] Preferably, connecting seats are fixed on both sides of the support frame.

[0013] Preferably, the rod body of the single-headed cylinder is connected to the connecting seat.

[0014] The beneficial effects of the present utility model are as follows: The present utility model performs telescopic work through the double rods on the double-headed cylinder, which drives the outer beam to move. Under the action of the slide rail, the outer beam stably drives the support frame to move to both sides, and the distance between both sides of the support frame can be adjusted, so as to realize the adjustable span of the support structure. It can be adjusted for use with goods of larger volume and narrower chamber doors, reducing the limitation of the use scenario, having stronger adaptability, and being more conducive to expanding the use. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a rigid support structure for a large-span gantry crane of the present utility model;

[0016] Figure 2 It is a schematic sectional structure diagram of the support beam assembly of the present utility model;

[0017] Figure 3 It is a schematic bottom view structure diagram of the middle beam of the present utility model.

[0018] Reference numerals: support frame - 1, support beam assembly - 2, AGV driving wheel - 3, base - 4, single-headed cylinder - 5, connecting seat - 6, outer beam - 21, middle beam - 22, slide rail - 23, double-headed cylinder - 24. Detailed Description of the Invention

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] Please refer to Figures 1-3The utility model provides a rigid support structure for a large-span gantry crane, including: a support frame 1, a support beam assembly 2, and an AGV driving wheel 3. The support beam assembly 2 is installed on the support frame 1; the AGV driving wheel 3 is located on both sides of the lower part of the support frame 1; wherein the support beam assembly 2 includes an outer beam 21 and a middle beam 22, wherein the outer beam 21 is provided with two and is movably installed on both sides of the middle beam 22 through slide rails 23, wherein a double-headed cylinder 24 is installed in the middle beam 22, wherein double rods on the double-headed cylinder 24 respectively pass through both sides of the middle beam 22 and are connected to the inner side of the outer beam 21, and the support frame 1 is installed on the lower side of the outer beam 21.

[0022] When in use, the AGV driving wheel 3 is used to control the support frame 1 to move to the cargo area where lifting is required. The wire rope gantry crane can lift the cargo by retracting and releasing the rope. When the gantry span needs to be increased or decreased, the double rods on the double-headed cylinder 24 are extended and retracted to drive the outer beam 21 to move. Under the action of the slide rail 23, the outer beam 21 smoothly moves the support frame 1 to both sides, thereby adjusting the distance between the two sides of the support frame 1, thereby realizing the adjustable span of the support structure and enhancing its applicability.

[0023] According to some embodiments of the present application, slide rails 23 are optionally installed on both upper and lower sides of the middle beam 22. The slide rails on both sides are connected to the outer beam 21, so that the outer beam 21 moves more steadily and smoothly, and is not easy to deviate from the middle beam 22, resulting in the phenomenon of adjustment jamming.

[0024] According to some embodiments of the present application, optionally, bases 4 are installed on both sides of the support frame 1, and the AGV driving wheels 3 are located at the bottom of the bases 4 on both sides of the support frame 1. The AGV driving wheels 3 play a role in guiding the movement when the support frame 1 moves to both sides.

[0025] According to some embodiments of the present application, optionally, a single-head cylinder 5 is installed on the base 4, and connecting seats 6 are fixed on both sides of the support frame 1, and the rod of the single-head cylinder 5 is connected to the connecting seats 6. On the one hand, in order to make the support frame 1 off the ground more convenient for span adjustment, and on the other hand, in order to provide assistance to the wire rope gantry crane, the present application uses the single-head cylinder 5 to push the connecting seat 6 to lift the support frame 1 off the ground, so that the support frame 1 is off the ground, effectively reducing the resistance of span adjustment, and when the wire rope gantry crane is lifting goods, the single-head cylinder 5 lifts the support frame 1 together with the goods, which has the effect of assisting and sharing pressure.

[0026] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0027] As used in the specification, "embodiment" means that the specific features or characteristics described in connection with the embodiments are included in at least one embodiment of the present utility model. Therefore, the phrase "embodiment" that appears throughout the specification does not necessarily refer to the same embodiment in every case.

[0028] In addition, the described features or characteristics may be combined in any other suitable manner into one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present utility model. However, those skilled in the relevant art will understand that the present utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A rigid support structure for a large-span gantry crane, characterized in that: include: Support frame (1); A supporting beam assembly (2) mounted on the supporting frame (1); AGV driving wheels (3) are located on both sides of the lower side of the support frame (1); wherein: The supporting crossbeam assembly (2) comprises an outer beam (21) and a middle beam (22). Two outer beams (21) are provided and are movably mounted on both sides of the middle beam (22) via slide rails (23). A double-headed cylinder (24) is installed in the middle beam (22). Double rods on the double-headed cylinder (24) extend out from both sides of the middle beam (22) and are connected to the inner side of the outer beam (21). The supporting frame (1) is mounted on the lower side of the outer beam (21).

2. A rigid support structure for a large-span gantry crane according to claim 1, characterized in that: Slide rails (23) are installed on both upper and lower sides of the middle beam (22).

3. The rigid support structure for a large-span gantry crane according to claim 1, characterized in that: Bases (4) are installed on both sides of the lower side of the support frame (1).

4. The rigid support structure for a large-span gantry crane according to claim 3, characterized in that: The AGV driving wheels (3) are located at the bottom of the base (4) on both sides below the support frame (1).

5. A rigid support structure for a large-span gantry crane according to claim 3 or 4, characterized in that: A single-head cylinder (5) is mounted on the base (4).

6. The rigid support structure for a large-span gantry crane according to claim 5, characterized in that: Connecting seats (6) are fixed on both sides of the support frame (1).

7. The rigid support structure for a large-span gantry crane according to claim 6, characterized in that: The rod body of the single-head cylinder (5) is connected to the connecting seat (6).

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