A kind of ultra-high lift crane sling bottom pre-warning parking device

Abstract

The utility model relates to hoisting equipment technical field, concretely relates to a kind of superhigh-lift crane sling bottom prewarning parking device, mainly including frame, sling assembly and driving device;Frame lower portion is equipped with sling assembly, driving device for driving sling assembly is installed thereon;Sling assembly is composed of mounting bracket, lifting hook, ranging module and anti-collision module, and lifting hook is mounted in the lower part of mounting bracket, ranging module is installed in the one end of mounting bracket, and anti-collision module is installed in the other end, ranging module and anti-collision module are cooperated, the mode of early warning before shutdown is used to avoid sling bottom damage, and the phenomenon that goods unhooking or steel wire rope excessive wear under the action of gravity after equipment sudden shutdown is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a bottom-touching warning and stop device for an ultra-high lift crane. Background Technology

[0002] Ultra-high lift cranes, with their advantage of large lifting heights (typically exceeding 50 meters, and in some special scenarios reaching over 100 meters), have become core equipment for high-altitude heavy object transfer and hoisting operations. The lifting gear (including the hook and mounting frame) of this type of crane is a key component that directly bears the heavy objects; its operational safety and stability directly determine the overall operational efficiency and equipment lifespan. In actual operation, the lifting gear needs to frequently move back and forth between the height and the ground. Precisely controlling the distance between the lifting gear and the ground to avoid collisions is one of the core requirements for ensuring operational safety and preventing equipment damage.

[0003] In existing technologies, most cranes do not have a dedicated early warning device for the spreader hitting the ground. Instead, they only trigger a shutdown through overload protection (such as torque limiters and weight sensors) after the spreader hits the ground. However, at this time, the spreader has already collided with the ground, and the impact load has been transmitted to the spreader and the hoisting mechanism, which can still cause irreversible damage such as spreader deformation and loosening of connecting parts. In some precision lifting scenarios (such as when the spreader carries auxiliary components such as sensors and clamps), the impact may also cause the failure of the supporting components, leading to increased losses. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a low-lift crane lifting device with a bottom-touching warning and stopping mechanism. This device uses a combination of a distance measuring module and an anti-collision module to assist the operator in identifying the distance between the hook and the ground, thus preventing damage to the lifting device after it touches the ground.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-lift crane lifting device with bottom-touching warning and stopping capability, comprising a gantry frame, a lifting device assembly disposed below the gantry frame, a drive device disposed on the gantry frame, the lifting device assembly comprising a mounting frame, a hook disposed at the lower part of the mounting frame, a distance measuring module disposed at one end of the mounting frame, and an anti-collision module disposed at the other end.

[0006] As a further improvement to the above technical solution: The ranging module uses a laser rangefinder with a measuring range of 5-10 meters.

[0007] The anti-collision module includes a limiting seat, a counterweight is provided on the limiting seat, and a connecting line is provided between the limiting seat and the counterweight.

[0008] The length of the connecting line is 1-3 meters. The upper end of the connecting line is detachably connected to the limiting seat, and the lower part is fixedly connected to the counterweight.

[0009] The drive device includes a wire rope and a winch, the upper part of the mounting frame is provided with a pulley block, and the gantry is provided with guide pulleys.

[0010] The pulley system includes two lifting pulleys, which are symmetrically distributed about the center line of the guide pulley.

[0011] The gantry is equipped with a control console, which is connected to the ranging module and the anti-collision module via transmission cables. The gantry is also equipped with a winding drum for storing the transmission cables.

[0012] The beneficial effects of this utility model embodiment are as follows: The ultra-high lift crane's bottom-touching warning and stop device mainly includes a gantry, a lifting assembly, and a drive device; the lifting assembly is provided below the gantry, and a drive device for driving the lifting assembly is installed on it; the lifting assembly consists of a mounting frame, a hook, a distance measuring module, and an anti-collision module. The lower part of the mounting frame is equipped with a hook, one end of the mounting frame is equipped with a distance measuring module, and the other end is equipped with an anti-collision module. By using the distance measuring module and the anti-collision module in conjunction, a warning and then stop method is used to avoid damage to the lifting device by bottoming out. At the same time, it also avoids the phenomenon of goods falling off the hook or excessive wear of the wire rope under the action of gravity after the equipment suddenly stops. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] In the diagram: 1. Frame; 2. Mounting frame; 3. Hook; 4. Distance measuring module; 5. Anti-collision module; 6. Limit seat; 7. Counterweight; 8. Connecting line; 9. Wire rope; 10. Winch; 11. Guide pulley; 12. Lifting pulley; 13. Control console; 14. Transmission cable; 15. Rewind drum. Detailed Implementation

[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] like Figure 1 As shown, the ultra-high lifting crane bottom-touching warning and stop device of this embodiment mainly includes a gantry 1, a lifting assembly and a drive device; the lifting assembly is provided below the gantry 1, and a drive device for driving the lifting assembly is installed on it; the lifting assembly consists of a mounting frame 2, a hook 3, a distance measuring module 4 and an anti-collision module 5. The hook 3 is installed at the lower part of the mounting frame 2, the distance measuring module 4 is installed at one end of the mounting frame 2 and the anti-collision module 5 is installed at the other end.

[0017] The ranging module 4 uses a laser rangefinder with a measurement range between 5 and 10 meters. The anti-collision module 5 includes a limit seat 6, a counterweight 7, and a connecting line 8. The upper end of the connecting line 8 is detachably connected to the limit seat 6 via a clamp, which facilitates height adjustment according to usage requirements. The lower end is fixedly connected to the counterweight 7, and its overall length is in the range of 1 to 3 meters.

[0018] The drive unit consists of a wire rope 9 and a winch 10. One end of the wire rope 9 is fixedly connected to the frame 1, and the other end is connected to the winch 10. The upper part of the mounting frame 2 is equipped with a set of pulleys. The frame 1 is provided with guide pulleys 11. The pulley set includes two lifting pulleys 12. The two pulleys are arranged symmetrically about the center line of the guide pulleys 11. The winch 10 drives the mounting frame 2 to complete the lifting and lowering.

[0019] The gantry 1 is also equipped with a control console 13, which is connected to the ranging module 4 and the anti-collision module 5 respectively via transmission cables 14. The transmission cables 14 are stored and managed by a take-up drum 15 set on the gantry 1.

[0020] The working principle / assembly process of this solution is as follows: During the descent, when the distance measured by the laser rangefinder reaches the set range value (e.g., the set value is 8 meters), it will send a warning signal to the control console to remind the operator to slow down and simultaneously reduce the power of the winch 10 to control the descent speed. As the mounting frame 2 continues to fall, when the anti-collision module 5 detects that it has touched the bottom, it sends a signal to the control console 13, which then sends a stop signal to the drive module.

[0021] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0024] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A low-lift crane lifting device for early warning and stopping when the lifting device touches the bottom, comprising a gantry (1), characterized in that: A lifting device is provided below the gantry (1), and a driving device is provided on the gantry (1); The lifting device assembly includes a mounting frame (2), a hook (3) is provided at the lower part of the mounting frame (2), a distance measuring module (4) is provided at one end of the mounting frame (2), and an anti-collision module (5) is provided at the other end.

2. The ultra-high lift crane lifting device for bottom contact warning and stop according to claim 1, characterized in that: The ranging module (4) uses a laser rangefinder with a measuring range of 5-10 meters.

3. The ultra-high lift crane lifting device for bottom contact warning and stop according to claim 1, characterized in that: The anti-collision module (5) includes a limiting seat (6), a counterweight (7) is provided on the limiting seat (6), and a connecting line (8) is provided between the limiting seat (6) and the counterweight (7).

4. The ultra-high lift crane lifting device for bottom contact warning and stop according to claim 3, characterized in that: The length of the connecting line (8) is 1-3 meters. The upper end of the connecting line (8) is detachably connected to the limiting seat (6), and the lower part is fixedly connected to the counterweight (7).

5. The ultra-high lift crane lifting device for bottom contact warning and stop according to claim 1, characterized in that: The drive device includes a wire rope (9) and a winch (10). The upper part of the mounting frame (2) is provided with a pulley block, and the frame (1) is provided with a guide pulley (11).

6. The ultra-high lift crane lifting device for bottom contact warning and stop according to claim 5, characterized in that: The pulley group includes two lifting pulleys (12), which are symmetrically distributed about the center line of the guide pulley (11).

7. The ultra-high lift crane lifting device for bottom contact warning and stop according to claim 1, characterized in that: The gantry (1) is equipped with a control console (13), which is connected to the ranging module (4) and the anti-collision module (5) via a transmission cable (14). The gantry (1) is equipped with a winding drum (15) for storing the transmission cable (14).

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