Novel hanging beam hook device of bridge crane

Abstract

The utility model relates to a novel hanging beam hook device of a bridge crane, in particular to the technical field of crane equipment. The hanging hook comprises a hanging hook body, the hanging hook body is fixed on a hanging beam of the crane, the hanging hook body comprises a cross beam, vertical arms and a hanging hook, the outer sides of the two vertical arm ends of the hanging hook body are connected with one side of the hanging hook through telescopic rods, the hanging hook is in a U shape, and limiting assemblies are connected to the two sides of the inner wall of the hanging hook. Moving mechanisms capable of adjusting the distance between the two hooks are arranged on the two sides of the bottom of the crane suspension beam, through the integrally-formed inverted-U-shaped hook bodies and three-face welding of the hook bodies and the suspension beam, the high bearing capacity and the overall rigidity are guaranteed, stepless adjustment of the distance between the hooks is achieved through a screw rod-moving block mechanism driven by a motor, and the safety of the crane is improved. The design of the moving grooves ensures stable movement and prevents separation, the adaptability is high, the spring limiting plate assemblies distributed in the Y shape can automatically clamp after the lifting appliance is in place, accidental unhooking is effectively prevented, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of crane equipment technology, and in particular to a novel suspension beam hook device for bridge cranes. Background Technology

[0002] Traditional bridge cranes typically have fixed hooks on their suspension beams, with non-adjustable hook spacing, making it difficult to adapt to different sizes or types of lifting devices. Some adjustable devices are complex in structure and inconvenient to adjust, and are prone to detachment of the lifting device due to swaying during hoisting, posing a safety hazard. Utility Model Content

[0003] (1) Technical solution

[0004] To solve the above-mentioned technical problems, this utility model provides a novel suspension beam hook device for a bridge crane, including a hook body, which is fixed on the crane suspension beam. The hook body includes a crossbeam, vertical arms, and hooks. The hook body is an integrally formed inverted U-shaped structure, and the outer sides of the two vertical arms are connected to one side of the hook via telescopic rods. The crossbeam is erected between the two vertical arms, and the bottom of the crossbeam is attached to and welded to the top of the crane suspension beam. The inner sides of the two vertical arms are attached to and welded to the two sides of the crane suspension beam. The hook is U-shaped, and limit components are connected to both sides of the inner wall. The bottom sides of the crane suspension beam are provided with a moving mechanism that can adjust the distance between the two hooks.

[0005] Preferably, the limiting component includes a limiting plate and a spring. The limiting plate includes a vertical section at the bottom and an arc-shaped section at the top. There are two limiting plates arranged symmetrically. The two limiting plates are respectively connected to the two side walls of the hook through the spring on opposite sides.

[0006] Preferably, the two limiting plates are arranged in a Y-shape.

[0007] Preferably, the moving mechanism includes a mounting frame, a screw, a drive motor, and a moving block. The mounting frame is fixed on both sides of the bottom of the crane suspension beam. The screw is rotatably mounted laterally inside the mounting frame. The screw is driven by the drive motor. The moving block is threadedly connected to the screw. The bottom of the hook is connected to the top of the moving block.

[0008] Preferably, a movable groove is provided on the inner wall of the bottom of the mounting frame, and the lower end of the movable block is slidably connected to the movable groove.

[0009] (2) Beneficial effects

[0010] This utility model provides a novel suspension beam hook device for bridge cranes. Compared with the prior art, this utility model has the following advantages:

[0011] 1. Stable and reliable structure: The one-piece molded inverted U-shaped hook body and the three-sided welding with the suspension beam ensure high load-bearing capacity and overall rigidity.

[0012] 2. Convenient and precise adjustment: The screw-moving block mechanism driven by the motor enables stepless adjustment of the hook spacing. The moving slot design ensures smooth movement and prevents the hook from coming off, making it highly adaptable.

[0013] 3. Automatic anti-detachment safety: The Y-shaped spring limit plate assembly can automatically clamp after the lifting device is in place, effectively preventing accidental detachment and improving safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention in its initial state.

[0015] Figure 2 This is a schematic diagram of the structure of the present invention when the distance between the two hooks is widened.

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] The attached diagram is labeled as follows: 1-Crane suspension beam, 2-Horizontal beam, 3-Vertical arm, 4-Hook, 5-Limiting assembly, 51-Limiting plate, 511-Vertical section, 512-Arc section, 52-Spring, 6-Telescopic rod, 7-Mounting bracket, 71-Moving slot, 8-Screw, 9-Drive motor, 10-Moving block. Detailed Implementation

[0018] The present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0019] like Figures 1-3 As shown, the present invention discloses a novel bridge crane suspension beam hook device, comprising a hook body fixed on the crane suspension beam 1. The hook body includes a crossbeam 2, vertical arms 3, and hooks 4. The hook body is an integrally formed inverted U-shaped structure, and the outer sides of the two vertical arms 3 are connected to one side of the hooks 4 via telescopic rods 6. The crossbeam 2 is mounted between the two vertical arms 3, and the bottom of the crossbeam 2 is attached to and welded to the top of the crane suspension beam 1. The inner sides of the two vertical arms 3 are attached to and welded to the two sides of the crane suspension beam 1. The hooks 4 are U-shaped, and limit components 5 are connected to both sides of the inner wall. The bottom sides of the crane suspension beam 1 are provided with a moving mechanism that can adjust the distance between the two hooks 4.

[0020] The limiting component 5 includes a limiting plate 51 and a spring 52. The limiting plate 51 includes a vertical section at the bottom and an arc-shaped section 512 at the top. There are two limiting plates 51 arranged symmetrically. The sides of the two limiting plates 51 that are far apart from each other are respectively connected to the two side walls of the hook 4 by the spring 52. The two limiting plates 51 are arranged in a Y-shape. When the lifting device is placed into the hook, its own weight or slight downward pressure causes the vertical section of the limiting plate to retract inward, allowing the lifting device to enter smoothly. After the lifting device is in place, under the action of the spring's restoring force, the arc-shaped section 512 of the two limiting plates 51 moves inward, forming an automatic clamping and limiting of the lifting device, effectively preventing it from accidentally detaching during lifting and improving operational safety.

[0021] The moving mechanism includes a mounting frame 7, a screw 8, a drive motor 9, and a moving block 10. The mounting frame 7 is fixed to both sides of the bottom of the crane suspension beam 1. The screw 8 is laterally rotatably mounted inside the mounting frame 7. The screw 8 is driven by the drive motor 9. The moving block 10 is threadedly connected to the screw 8. The bottom of the hook 4 is connected to the top of the moving block 10. The drive motor 9 drives the screw 8 to rotate, causing the moving block 10 to move axially along the screw 8, thereby moving the hook 4 horizontally. This allows for precise adjustment of the distance between the two hooks 4 to accommodate lifting devices of different sizes.

[0022] The mounting bracket 7 has a movable groove 71 on its bottom inner wall. The lower end of the movable block 10 is slidably connected to the movable groove 71. This structure provides precise guidance for the horizontal movement of the movable block 10, ensuring that the hook 4 moves smoothly. On the other hand, it can limit the displacement of the movable block 10 in the vertical direction, preventing it from being loosened from the screw 8 due to accidental force, thus enhancing the reliability of the mechanism.

[0023] Hook Body Fixing: The hook body is integrally cast from high-strength alloy steel into an inverted U-shaped structure, including a crossbeam 2, two vertical arms 3, and two hooks 4. During installation, the bottom surface of the crossbeam 2 is tightly fitted against the top surface of the crane suspension beam 1, and the two are welded together; simultaneously, the inner sides of the two vertical arms 3 are tightly fitted against the two sides of the crane suspension beam 1 and welded together. This welding method ensures a rigid connection between the hook body and the suspension beam 1, providing extremely high load-bearing capacity and resistance to bending and torsion.

[0024] Hook Connection and Adjustment: Two U-shaped hooks 4 are connected to the outer sides of the ends of the two vertical arms 3 via telescopic rods 6 capable of withstanding tensile and compressive loads. A moving mechanism is fixedly installed on each side of the bottom of the crane suspension beam 1. Each moving mechanism includes:

[0025] Mounting bracket 7: Securely fixed to the bottom of suspension beam 1 by bolts or welding.

[0026] Screw 8: It is rotatably mounted laterally within the mounting bracket 7 via a bearing.

[0027] Drive motor 9: Installed at one end of mounting bracket 7, its output shaft is connected to screw 8 through a coupling to provide rotational power to screw 8.

[0028] Movable block 10: It has a threaded hole inside that matches the screw 8, and is threadedly connected to the screw 8. The top of the movable block 10 is fixedly connected to the bottom of the hook 4 (e.g., by bolting or welding). A long strip-shaped moving groove 71 is machined on the bottom inner wall of the mounting bracket 7, and a protrusion or slider is machined on the lower end of the movable block 10. The protrusion / slider is embedded in the moving groove 71 and can slide along it.

[0029] Working process: Start the drive motor 9 (the two motors can be controlled synchronously or independently) to drive the screw 8 to rotate; since the moving block 10 is restricted to horizontal movement by the moving groove 71, the rotational motion of the screw 8 is converted into the linear motion of the moving block 10 along the axis of the screw 8, thereby driving the hook 4 connected to it to move horizontally, realizing the adjustment of the distance between the two hooks 4; the moving groove 71 plays a key guiding role for the moving block 10 and prevents it from rotating with the screw or accidentally falling out.

[0030] Limiting and anti-detachment components: Each limiting component 5 includes two limiting plates 51: made of wear-resistant steel plates, with a vertical section 511 at the bottom and an arc-shaped section 512 at the top. The two limiting plates 51 are arranged symmetrically. In the natural state (without a lifting device), the vertical sections 511 approach each other due to the spring tension, forming a Y-shaped distribution with a larger opening at the top and a smaller opening at the bottom.

[0031] Spring 52: Two springs 52 are respectively connected between the outer side of the corresponding limiting plate 51 (the side away from the center of the Y) and the side wall of the hook 4. The springs 52 provide the force to pull the limiting plate 51 toward the inside of the hook.

[0032] Working process: When the lifting device (such as a lifting ring) is placed into the hook 4, the lifting device presses down on the upper end of the vertical section 511 or the arc-shaped section 512 of the limiting plate 51, overcoming the tension of the spring 52, forcing the lower part (vertical section) of the two limiting plates 51 to open outward, allowing the lifting device to fall smoothly into the bottom of the hook. After the lifting device is in place, the restoring force of the spring 52 pulls the two limiting plates 51 back inward, and the arc-shaped section 512 retracts inward, forming a clamping barrier from above or to the side of the lifting device, effectively preventing the lifting device from falling off the hook due to swaying, tilting, or accidental lifting during crane operation, greatly improving operational safety.

[0033] The embodiments described above are merely preferred embodiments of the present invention, and are described in a relatively specific and detailed manner. However, the present invention is not limited to these embodiments. It should be noted that for those skilled in the art, any improvements made without departing from the spirit of the present invention fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A novel suspension beam hook device for bridge cranes, characterized in that, The system includes a hook body, which is fixed on the crane suspension beam (1). The hook body includes a crossbeam (2), a vertical arm (3), and a hook (4). The hook body is an integrally formed inverted U-shaped structure, and the outer sides of the two vertical arms (3) are connected to one side of the hook (4) through a telescopic rod (6). The crossbeam (2) is erected between the two vertical arms (3), and the bottom of the crossbeam (2) is attached to and welded to the top of the crane suspension beam (1). The inner sides of the two vertical arms (3) are attached to and welded to the two sides of the crane suspension beam (1). The hook (4) is U-shaped and has limit components (5) connected to both sides of the inner wall. The bottom sides of the crane suspension beam (1) are provided with a moving mechanism that can adjust the distance between the two hooks (4).

2. The novel bridge crane suspension beam hook device according to claim 1, characterized in that, The limiting component (5) includes a limiting plate (51) and a spring (52). The limiting plate (51) includes a vertical section at the bottom and an arc-shaped section (512) at the top. There are two limiting plates (51) arranged symmetrically. The two limiting plates (51) are connected to the two side walls of the hook (4) respectively through the spring (52) on the side away from each other.

3. The novel bridge crane suspension beam hook device according to claim 2, characterized in that, The two limiting plates (51) are arranged in a Y-shape.

4. The novel bridge crane suspension beam hook device according to claim 1, characterized in that, The moving mechanism includes a mounting frame (7), a screw (8), a drive motor (9), and a moving block (10). The mounting frame (7) is fixed on both sides of the bottom of the crane suspension beam (1). The screw (8) is installed laterally and rotatably inside the mounting frame (7). The screw (8) is driven by the drive motor (9). The moving block (10) is threadedly connected to the screw (8). The bottom of the hook (4) is connected to the top of the moving block (10).

5. A novel suspension beam hook device for a bridge crane according to claim 4, characterized in that, The mounting bracket (7) has a movable groove (71) on its bottom inner wall, and the lower end of the movable block (10) is slidably connected to the movable groove (71).

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