Stable movement structure of a portal crane

Abstract

The utility model discloses a stable mobile structure of portal crane, including portal crane main part, both sides of portal crane main part all are provided with support foot stand, and the bottom of support foot stand is provided with recess, the recess inboard is provided with first stable subassembly, first stable subassembly and second stable subassembly structure are same, and first stable subassembly and second stable subassembly are located the upper and lower ends of mobile pulley respectively, and the bottom of support foot stand is rotatably connected with mobile pulley, and the bottom of mobile pulley is provided with mobile slide rail, the top side of mobile slide rail is provided with lug, the one side of lug is provided with limit stop, and the top side of mobile slide rail is fixedly connected with limit stop, and the inside of mobile slide rail top is provided with second stable subassembly, second stable subassembly includes the brake block sliding connection with mobile slide rail, and the brake block is attached to the outer wall of mobile pulley. The device can guarantee the stability after mobile pulley stops, and then avoid mobile pulley to shake, improve the security of the device use.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a stable moving structure for a gantry crane. Background Art

[0002] A gantry crane is a bridge-type hoisting equipment, whose main structure consists of a main beam (bridge frame), legs and operating mechanism. Its overall shape resembles the Chinese character "men" (door), hence the name. It is usually used for cargo loading, unloading and handling operations in outdoor yards, stockyards, docks, railway freight stations and other places.

[0003] During the moving process, the gantry crane mainly relies on the wheels at the bottom of the outrigger. After the gantry crane moves to a proper position, it needs to keep a static state. However, the wheels may still move after stopping, which increases the danger in using the device, so improvements are required. Contents of the Utility Model

[0004] The purpose of the utility model is to provide a stable moving structure for a gantry crane, so as to solve the problem of instability of the moving wheels of the gantry crane after stopping raised in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a stable moving structure for a gantry crane, comprising a gantry crane main body, wherein outriggers are arranged on both sides of the gantry crane main body, a groove is formed at the bottom of each outrigger, a first stabilizing assembly is arranged inside the groove, a moving pulley is rotatably connected to the bottom of each outrigger, a moving slide rail is arranged at the bottom of the moving pulley, a limit plate is fixedly connected to the top side of the moving slide rail, and a second stabilizing assembly is arranged on the inner side of the top of the moving slide rail; The second stabilizing assembly comprises a brake block slidably connected with the moving slide rail, and the brake block is attached to the outer wall of the moving pulley.

[0006] Preferably, the first stabilizing assembly and the second stabilizing assembly have the same structure, and the first stabilizing assembly and the second stabilizing assembly are respectively located at the upper and lower ends of the moving pulley.

[0007] Preferably, a protruding block is arranged on the top side of the moving slide rail, a limit plate is arranged on one side of the protruding block, a groove is formed inside the protruding block, and an electric cylinder is fixedly connected to the inner wall of the groove.

[0008] Preferably, one end of the electric cylinder is fixedly connected with a fixing plate, and a plurality of electric cylinders are longitudinally and equally spaced on the outer wall of the fixing plate.

[0009] The inner side of the fixing plate is fixedly connected with a brake block, the brake block is a wear-resistant rubber block, and one side of the brake block is fixedly connected with the electric cylinder.

[0010] Preferably, the bottom side of the support frame has a groove, one end of the limiting plate is inserted into the groove, and the limiting plate and the support frame are slidably connected.

[0011] Preferably, a drive motor is fixedly connected to one side of the support frame, and one end of the drive motor shaft is connected to the shaft of the movable pulley.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This device can ensure the stability of the moving pulley after it stops, thereby avoiding the shaking of the moving pulley and improving the safety of the device.

[0013] (2) By setting a first stabilizing component and a second stabilizing component on the top and bottom sides of the movable pulley respectively, the device can clamp the two sides of the movable pulley by the brake block and the electric cylinder after the movable pulley stops, thereby preventing the movable pulley from rolling, improving the stability of the movable pulley, and thus improving the safety of the device.

[0014] (3) This device can ensure the clamping and fixing effect of the movable pulley when the movable pulley is in different positions by setting multiple sets of brake blocks and electric cylinders on the fixed plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the stable moving structure of a gantry crane according to the present invention; Figure 2 This utility model relates to a stable moving structure for a gantry crane. Figure 1 Enlarged view of point A in the middle; Figure 3 This is a side view of the connection between the fixed plate and the brake block in the stable moving structure of a gantry crane according to the present invention; Figure 4 This is a top view of the moving slide rail of a gantry crane according to the present invention.

[0016] In the diagram: 1. Gantry crane body; 2. Outriggers; 3. Drive motor; 4. Moving slide rail; 5. First stabilizing component; 6. Second stabilizing component; 61. Brake block; 62. Electric cylinder; 63. Fixed plate; 7. Moving pulley; 8. Limit plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a stable moving structure for a gantry crane, including a gantry crane body 1, with support legs 2 on both sides of the gantry crane body 1. The bottom of each support leg 2 has a groove, and a first stabilizing component 5 is disposed inside the groove. The first stabilizing component 5 and the second stabilizing component 6 have the same structure and are located at the upper and lower ends of a moving pulley 7, respectively. This structure allows the first stabilizing component 5 and the second stabilizing component 6 to evenly and stably clamp the upper and lower ends of the moving pulley 7 after it stops, thereby ensuring the stability of the moving pulley 7. To ensure stability and prevent slippage after the movable pulley 7 stops, the bottom of the support frame 2 is rotatably connected to the movable pulley 7. A groove is provided on the bottom side of the support frame 2, and one end of a limiting plate 8 is inserted into the groove, forming a sliding connection between the limiting plate 8 and the support frame 2. This limiting plate 8 can limit the outer side of the support frame 2 during movement, thereby improving the stability of the support frame 2's movement. A drive motor 3 is fixedly connected to one side of the support frame 2, and one end of the drive motor 3's shaft is connected to the shaft on one side of the movable pulley 7. This drive motor 3 can drive the movable pulley 7 to rotate automatically, facilitating the movement of the gantry crane by the movable pulley 7. The main body 1 and the support frame 2 move, while multiple drive motors 3 can be controlled by a PLC to ensure synchronous drive. A sliding rail 4 is installed at the bottom of the moving pulley 7, and a protrusion is provided on the top side of the sliding rail 4. A limit plate 8 is provided on one side of the protrusion, and a groove is formed inside the protrusion. An electric cylinder 62 is fixedly connected to the inner wall of the groove. This structure facilitates the installation of the electric cylinder 62. A fixing plate 63 is fixedly connected to one end of the electric cylinder 62. Multiple electric cylinders 62 are longitudinally and evenly distributed about the outer wall of the fixing plate 63. These multiple electric cylinders 62 can be controlled by a PLC to ensure synchronous drive of the multiple electric cylinders 62. A brake block 61 is fixedly connected to the inner side of the fixed plate 63. The brake block 61 is a wear-resistant rubber block. One side of the brake block 61 is fixedly connected to the electric cylinder 62. The electric cylinder 62 with this structure can push the brake block 61 to fit tightly against the outer wall of the movable pulley 7, thereby clamping the movable pulley 7 after it stops, preventing the movable pulley 7 from rolling, and improving the stability of the movable pulley 7 after it stops. A limit plate 8 is fixedly connected to the top side of the movable slide rail 4. A second stabilizing component 6 is provided on the inner side of the top of the movable slide rail 4. The second stabilizing component 6 includes a brake block 61 that is slidably connected to the movable slide rail 4. The brake block 61 fits against the outer wall of the movable pulley 7.

[0019] Working principle: When using the stable moving structure of this gantry crane, the drive motor 3 first drives the moving pulley 7 to rotate, so that the moving pulley 7 moves the gantry crane body 1 and the support frame 2 during the movement. When the gantry crane body 1 and the support frame 2 are in the designated position, the moving pulley 7 stops moving. At this time, the electric cylinder 62 of the first stabilizing component 5 and the second stabilizing component 6 pushes the brake block 61 to move, so that the brake block 61 moves closer to both sides of the moving pulley 7, so that the brake block 61 clamps and fixes the upper and lower ends of the moving pulley 7, thereby ensuring the stability of the moving pulley 7 and preventing the gantry crane body 1 and the support frame 2 from shaking.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stable moving structure for a gantry crane, comprising the main body of the gantry crane (1), characterized in that: The gantry crane body (1) is provided with legs (2) on both sides. The bottom of the legs (2) is provided with a groove. The first stabilizing component (5) is provided inside the groove. The bottom of the legs (2) is rotatably connected to a movable pulley (7). The bottom of the movable pulley (7) is provided with a movable slide rail (4). The top side of the movable slide rail (4) is fixedly connected to a limit plate (8). The top inner side of the movable slide rail (4) is provided with a second stabilizing component (6). The second stabilizing component (6) includes a brake block (61) that is slidably connected to the movable slide rail (4) and the brake block (61) is attached to the outer wall of the movable pulley (7).

2. The stable moving structure of a gantry crane according to claim 1, characterized in that: The first stabilizing component (5) and the second stabilizing component (6) have the same structure. The first stabilizing component (5) and the second stabilizing component (6) are located at the upper and lower ends of the movable pulley (7), respectively.

3. The stable moving structure of a gantry crane according to claim 1, characterized in that: The top side of the movable slide rail (4) is provided with a protrusion, and a limit plate (8) is provided on one side of the protrusion. A groove is opened on the inner side of the protrusion, and an electric cylinder (62) is fixedly connected to the inner wall of the groove.

4. The stable moving structure of a gantry crane according to claim 3, characterized in that: One end of the electric cylinder (62) is fixedly connected to a fixing plate (63), and multiple electric cylinders (62) are distributed longitudinally at equal intervals about the outer wall of the fixing plate (63).

5. The stable moving structure of a gantry crane according to claim 4, characterized in that: A brake block (61) is fixedly connected to the inner side of the fixing plate (63). The brake block (61) is a wear-resistant rubber block, and one side of the brake block (61) is fixedly connected to the electric cylinder (62).

6. The stable moving structure of a gantry crane according to claim 1, characterized in that: The bottom side of the support frame (2) has a groove, and one end of the limiting plate (8) is inserted into the groove. The limiting plate (8) and the support frame (2) are slidably connected.

7. The stable moving structure of a gantry crane according to claim 1, characterized in that: A drive motor (3) is fixedly connected to one side of the support frame (2), and one end of the shaft of the drive motor (3) is connected to the shaft of one side of the movable pulley (7).

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