Stabilizing device for gantry crane

Abstract

The utility model discloses a stabilizing device for a gantry crane, and belongs to the field of gantry cranes, the stabilizing device comprises a fixed support, the upper end of the fixed support is fixedly connected with a sliding frame, the sliding frame is slidably connected with a moving device, the side surface of the moving device is provided with a fixed frame, and the inner side of the fixed frame is rotatably connected with a movable column; the outer wall of the movable column is movably sleeved with a movable plate, a grabbing device is arranged at the bottom of the movable plate, and a stabilizing device is arranged at the bottom of the sliding frame. The stabilizing device comprises a sliding rail, the sliding rail is fixedly connected to the bottom of the sliding frame, and the outer wall of the sliding rail is slidably connected with a sliding block. By arranging the stabilizing device, the operation stability and safety of the crane can be improved, and the accident risk caused by shaking or instability can be effectively reduced. And through reasonable mechanical structure design and a force transmission mechanism, the crane can be kept stable under various operation conditions.

Description

Technical Field

[0001] This application relates to the field of portal cranes, and more particularly, to a stabilizing device for a portal crane. Background Art

[0002] A gantry crane, also known as a gantry hoist, is a variant of a bridge crane. The metal structure of a gantry crane is like a portal frame. Two legs are installed under the load-bearing main beam, and it can directly run on the ground track. The two ends of the main beam can have outstretched cantilever beams. It has the characteristics of high site utilization rate, large operation range, wide adaptability, strong versatility, etc., and is mainly used for the loading and unloading operations of outdoor freight yards, material yards, and bulk goods.

[0003] When the existing grab grabs materials, it is prone to tilt, swing and shake. Due to the swing of the grab, the grab will not be able to effectively grab the materials. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present utility model provides a stabilizing device for a portal crane, which solves the problems raised in the above background art. To achieve the above objectives, the present utility model is realized through the following technical solutions: A stabilizing device for a portal crane, including a fixed bracket, the upper end of the fixed bracket is fixedly connected with a sliding frame, the sliding frame is slidably connected with a moving device, a fixed frame is arranged on the side of the moving device, an activity column is rotatably connected inside the fixed frame, an activity plate is movably sleeved on the outer wall of the activity column, a grabbing device is arranged at the bottom of the activity plate, and a stabilizing device is arranged at the bottom of the sliding frame; the stabilizing device includes a slide rail, the slide rail is fixedly connected to the bottom of the sliding frame, a slider is slidably connected to the outer wall of the slide rail, a connecting seat is fixedly connected to the bottom of the slider, a rotating shaft is rotatably connected to the middle of the connecting seat, a force-bearing rod A and a force-bearing rod B are fixedly sleeved on the outer wall of the rotating shaft, a cross bar is fixedly connected to the inner wall of the fixed frame, and the force-bearing rod B is rotatably connected to the outer wall of the cross bar.

[0005] Preferably, there are two groups of the stabilizing devices except the slide rail and they are symmetrically arranged on both sides of the fixed frame. Preferably, the shape of the slide rail is set as an inverted T shape.

[0006] Preferably, the grabbing device includes a mounting plate, the mounting plate is fixedly connected to the upper part of the connecting plate, a triangular plate is fixedly connected to the bottom of the mounting plate, connecting rods are hinged to both sides of the lower end of the triangular plate, a digging bucket is hinged to the other end of the connecting rods, a cylinder is fixedly connected to the bottom of the mounting plate, a push plate is fixedly connected to the output end of the cylinder, connecting plates are fixedly connected to both sides of the bottom of the push plate, a rotating rod is rotatably connected between the two connecting plates on both sides, and both ends of the rotating rod penetrate through the connecting plates and are fixedly connected to the inner wall of the digging bucket.

[0007] Preferably, two triangular plates are provided and symmetrically arranged on both sides of the bottom of the mounting plate.

[0008] Preferably, connecting rods are provided at both upper ends of the bucket.

[0009] The advantages of the present application are as follows:

[0010] (1), by providing a stabilizing device in the present application, the operating stability and safety of the crane can be improved, and the accident risk caused by shaking or instability can also be effectively reduced. Through reasonable mechanical structure design and force transmission mechanism, it is ensured that the crane can maintain stability under various operating conditions.

[0011] (2), by providing a grasping device in the present application, the portal crane can efficiently perform object grasping and manipulation operations. Through the push plate driven by the cylinder and the rotating mechanism, the precise opening and closing of the bucket are realized, thus ensuring the function and safety of the crane in various engineering scenarios. The operating efficiency of the crane is improved, and its response ability in complex environments is also enhanced, meeting the requirements of modern construction machinery for precise control and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the bottom view of the present utility model;

[0015] Figure 3 is the Figure 1 enlarged structural schematic diagram at A in the present utility model;

[0016] Figure 4 is the Figure 2 enlarged structural schematic diagram at B in the present utility model.

[0017] In the above figures,

[0018] 1, fixed bracket; 2, sliding frame; 3, moving device; 4, fixed frame; 5, movable column; 61, mounting plate; 62, triangular plate; 63, connecting rod; 64, bucket; 65, cylinder; 66, push plate; 67, connecting plate; 68, rotating rod; 71, slide rail; 72, slider; 73, connecting seat; 74, rotating shaft; 75, stress rod A; 76, stress rod B; 77, cross bar; 8, movable plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0020] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in conjunction with the embodiments.

[0021] Embodiment 1

[0022] See Figures 1 - 4 , this embodiment provides a stabilizing device for a portal crane. A stabilizing device for a portal crane includes a fixed bracket 1, which is located at the bottom of the crane structure and is used to support the entire stabilizing device. The upper end of the fixed bracket 1 is fixedly connected with a sliding frame 2. A moving device 3 is slidably connected to the sliding frame 2. A fixed frame 4 is arranged on the side of the moving device 3. An activity column 5 is rotatably connected to the inner side of the fixed frame 4. An activity plate 8 is movably sleeved on the outer wall of the activity column 5. A grasping device is arranged at the bottom of the activity plate 8. A stabilizing device is arranged at the bottom of the sliding frame 2. The stabilizing device includes a slide rail 71, which is fixedly connected to the bottom of the sliding frame 2. A slider 72 is slidably connected to the outer wall of the slide rail 71. A connecting seat 73 is fixedly connected to the bottom of the slider 72. A rotating shaft 74 is rotatably connected to the middle of the connecting seat 73. A stress rod A 75 and a stress rod B 76 are fixedly sleeved on the outer wall of the rotating shaft 74, which increases the structural strength and stability of the stabilizing device. A cross bar 77 is fixedly connected to the inner wall of the fixed frame 4. The stress rod B 76 is rotatably connected to the outer wall of the cross bar 77. Two groups of stabilizing devices are provided except for the slide rail 71 and are symmetrically arranged on both sides of the fixed frame 4. The shape of the slide rail 71 is set as an inverted T shape, so as to prevent the slider 72 from falling off.

[0023] When the above device is specifically used, when the activity plate 8 has a tendency to sway to both sides, it will transmit to the slider 72 and the rotating shaft 74 through the stress rod A 75. If the activity plate 8 tilts, and it will cause the stress rod A 75 to drive the rotating shaft 74 to rotate. The other end of the rotating shaft 74 is fixedly connected to the cross bar 77, and the cross bar 77 is fixedly connected to the inner side of the fixed frame 4, so it cannot rotate. Therefore, the stress rod A 75 will prevent the activity plate 8 from tilting. At the same time, when the fixed frame 4 and the activity plate 8 move with the moving device 3, the slider 72 will slide outside the slide rail 71 at the same time, so it will not affect the operation of the crane.

[0024] Embodiment 2

[0025] See Figures 1 - 4 , on the basis of Embodiment 1, the grasping device includes a mounting plate 61, the mounting plate 61 is fixedly connected to the upper part of the connecting plate 67, the bottom of the mounting plate 61 is fixedly connected with a triangular plate 62, which provides stability and support. Both sides of the lower end of the triangular plate 62 are hinged with a connecting rod 63, the other end of the connecting rod 63 is hinged with a bucket 64 for actually grasping an object. The bottom of the mounting plate 61 is fixedly connected with a cylinder 65, the output end of the cylinder 65 is fixedly connected with a pushing plate 66, both sides of the bottom of the pushing plate 66 are fixedly connected with connecting plates 67, a rotating rod 68 is rotatably connected between the two connecting plates 67, and both ends of the rotating rod 68 penetrate through the connecting plates 67 and are fixedly connected with the inner wall of the bucket 64. There are two triangular plates 62, which are symmetrically arranged on both sides of the bottom of the mounting plate 61. Connecting rods 63 are arranged at both upper ends of the bucket 64.

[0026] When the above-mentioned device is in specific use, when grasping is required, the cylinder 65 is started to push the pushing plate 66 to move downward, which will drive the two connecting plates 67 at both sides to move downward, which will drive the rotating rod 68 to descend, and then drive the two buckets 64 to descend toward the upper ends of the closer side, and both sides of the lower ends of the buckets 64 will open toward both ends, so as to perform rotational grasping. After the grasping is completed, the reverse operation can close the buckets 64, thereby realizing the grasping.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A stabilizing device for a portal crane, comprising a fixed bracket (1), characterized in that: The upper end of the fixed bracket (1) is fixedly connected with a sliding bracket (2). The sliding bracket (2) is slidably connected with a moving device (3). The side of the moving device (3) is provided with a fixed bracket (4). The inner side of the fixed bracket (4) is rotatably connected with a movable column (5). The outer wall of the movable column (5) is movably sleeved with a movable plate (8). The bottom of the movable plate (8) is provided with a grasping device. The bottom of the sliding bracket (2) is provided with a stabilizing device; The stabilizing device includes a slide rail (71). The slide rail (71) is fixedly connected to the bottom of the sliding bracket (2). The outer wall of the slide rail (71) is slidably connected with a slider (72). The bottom of the slider (72) is fixedly connected with a connecting seat (73). The middle of the connecting seat (73) is rotatably connected with a rotating shaft (74). The outer wall of the rotating shaft (74) is fixedly sleeved with a force-bearing rod A (75) and a force-bearing rod B (76). The inner wall of the fixed bracket (4) is fixedly connected with a cross bar (77). The force-bearing rod B (76) is rotatably connected to the outer wall of the cross bar (77).

2. The stabilizing device for a portal crane according to claim 1, wherein: There are two sets of the stabilizing devices except the slide rail (71), and they are symmetrically arranged on both sides of the fixed bracket (4).

3. The stabilizing device for a portal crane according to claim 2, characterized in that: The shape of the slide rail (71) is an inverted T shape.

4. The stabilizing device for a portal crane according to claim 3, characterized in that: The grasping device includes a mounting plate (61). The mounting plate (61) is fixedly connected to the upper part of a connecting plate (67). The bottom of the mounting plate (61) is fixedly connected with a triangular plate (62). The two sides of the lower end of the triangular plate (62) are hinged with connecting rods (63). The other ends of the connecting rods (63) are hinged with a bucket (64). The bottom of the mounting plate (61) is fixedly connected with a cylinder (65). The output end of the cylinder (65) is fixedly connected with a pushing plate (66). The two sides of the bottom of the pushing plate (66) are fixedly connected with connecting plates (67). A rotating rod (68) is rotatably connected between the two connecting plates (67). The two ends of the rotating rod (68) penetrate through the connecting plates (67) and are fixedly connected with the inner wall of the bucket (64).

5. The stabilizing device for a portal crane according to claim 4, characterized in that: There are two triangular plates (62), and they are symmetrically arranged on both sides of the bottom of the mounting plate (61).

6. The stabilizing device for a portal crane according to claim 5, characterized in that: Both upper ends of the bucket (64) are provided with connecting rods (63).

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