High efficiency single back arm crane

Abstract

The utility model relates to the technical field of automobile manufacturing, concretely to a high -efficient single back arm crane, solve the problem that the background art has proposed, it includes the drive unit and the drive unit of retraction, the drive unit includes the fifth section of arm rope, the sixth section of arm rope and the seventh section of arm rope, the fifth section of arm rope is wound on the first group of winch mechanism, the sixth section of arm rope is wound on the second group of winch mechanism, the seventh section of arm rope is wound on the third group of winch mechanism, the drive unit of retraction includes the back arm rope, the back arm rope is connected through the linkage pulley set simultaneously each telescopic arm's recovery point. The utility model, through a plurality of independent winch mechanism respectively control the synchronous or section drive of the fifth section to the seventh section of arm rope, cooperate linkage pulley set and realize telescopic arm efficient collaborative retraction, promote telescopic precision and response speed.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to a high-efficiency single-arm crane. Background Technology

[0002] Traditional single-boom cranes typically use multiple boom ropes to control the extension and retraction of each boom section. For example, five-, six-, and seven-section booms may each have independent extension and retraction ropes, driven by multiple winch mechanisms. While this design achieves basic functionality, it suffers from the following problems: multiple ropes and winch mechanisms increase system complexity, occupy a large space, and make maintenance difficult; the extension and retraction of each boom section relies on the coordination of multiple drive units, which can easily lead to asynchrony and affect the smoothness of the telescopic movement. Utility Model Content

[0003] To solve the above problems, this utility model provides the following technical solution: a high-efficiency single-arm crane, including an extension drive unit and a retraction drive unit. The extension drive unit includes a fifth extension rope, a sixth extension rope, and a seventh extension rope. The fifth extension rope is wound on a first set of winch mechanisms, the sixth extension rope is wound on a second set of winch mechanisms, and the seventh extension rope is wound on a third set of winch mechanisms. The retraction drive unit includes a return rope, which is connected to the retraction points of each telescopic arm simultaneously through a linkage pulley system.

[0004] Preferably, the linkage pulley group includes fixed pulley units corresponding to the number of telescopic arms in each section.

[0005] Preferably, tension sensors are provided at the ends of the fifth, sixth, and seventh extension rope sections.

[0006] Preferably, the first group of winch mechanisms, the second group of winch mechanisms and the third group of winch mechanisms are arranged in a stepped layout, and anti-interference baffles are provided between adjacent winch mechanisms, with the height of the baffles being greater than 1.5 times the diameter of the outermost winding rope.

[0007] Compared with the prior art, the beneficial effects of this utility model are:

[0008] Multiple independent winch mechanisms control the synchronous or segmented drive of the fifth to seventh boom ropes, and in conjunction with the linkage pulley system, achieve efficient and coordinated retraction of the telescopic boom, significantly improving telescopic accuracy and response speed. The stepped winch layout and anti-interference baffle design effectively prevent rope tangling and enhance system stability. Tension sensors monitor the stress state of each rope section in real time to prevent overload or slack. The overall structure ensures the compactness of the single-boom crane while taking into account the safety and control flexibility of multi-section boom extension. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0010] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model.

[0011] In the diagram: 101, fifth section of the boom extension rope; 102, first set of winch mechanism; 201, sixth section of the boom extension rope; 202, second set of winch mechanism; 301, seventh section of the boom extension rope; 302, third set of winch mechanism; 4, linkage pulley block; 5, boom return rope; 6, tension sensor; 7, anti-interference baffle. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0013] like Figure 1 As shown, the high-efficiency single-arm crane of this embodiment includes an extension drive unit and a retraction drive unit. The extension drive unit includes a fifth extension rope 101, a sixth extension rope 201, and a seventh extension rope 301. The fifth extension rope 101 is wound on the first set of winch mechanisms 102, the sixth extension rope 201 is wound on the second set of winch mechanisms 202, and the seventh extension rope 301 is wound on the third set of winch mechanisms 302. The retraction drive unit includes a retraction rope 5, which is connected to the retraction points of each telescopic arm through a linkage pulley group 4.

[0014] The linkage pulley block 4 includes fixed pulley units corresponding to the number of telescopic arms in each section.

[0015] Tension sensors 6 are installed at the ends of the fifth section of the extension rope 101, the sixth section of the extension rope 201, and the seventh section of the extension rope 301.

[0016] The first group of winch mechanisms 102, the second group of winch mechanisms 202 and the third group of winch mechanisms 302 are arranged in a stepped layout, and anti-interference baffles 7 are provided between adjacent winch mechanisms. The height of the baffles is greater than 1.5 times the diameter of the outermost winding rope.

[0017] The working principle of this utility model is as follows:

[0018] Extension process: When the telescopic boom needs to be extended, the first, second, and third hoisting mechanisms (102, 202, and 302) drive the fifth extension rope 101, the sixth extension rope 201, and the seventh extension rope 301 respectively, pulling the corresponding boom section outward through their respective pulley systems. Since each extension rope section is independently controlled, it can be extended section by section or simultaneously, improving the telescopic efficiency.

[0019] Retraction process: When the telescopic boom needs to be retracted, the return rope 5, under the action of the linkage pulley block 4, acts simultaneously on the retraction points of each telescopic boom section, causing each section to retract synchronously. The fixed pulley unit of the linkage pulley block 4 ensures that the retraction force is evenly distributed, avoiding excessive force at a single point and ensuring smooth retraction.

[0020] Interference prevention and monitoring: The stepped layout of the hoisting mechanism, together with the anti-interference baffle 7, prevents the ropes from getting tangled; the tension sensor 6 monitors the tension of each extension rope in real time to ensure balanced force, prevent overload or slack, and improve safety and control accuracy.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency single-arm retraction crane, comprising an extension drive unit and a retraction drive unit, characterized in that, The extension drive unit includes a fifth extension rope (101), a sixth extension rope (201), and a seventh extension rope (301). The fifth extension rope (101) is wound around the first set of winch mechanisms (102), the sixth extension rope (201) is wound around the second set of winch mechanisms (202), and the seventh extension rope (301) is wound around the third set of winch mechanisms (302). The retraction drive unit includes a return rope (5), which is connected to the retraction points of each telescopic boom simultaneously through a linkage pulley group (4).

2. The high-efficiency single-arm crane according to claim 1, characterized in that: The linkage pulley group (4) includes fixed pulley units corresponding to the number of telescopic arms in each section.

3. The high-efficiency single-arm crane according to claim 1, characterized in that: Tension sensors (6) are provided at the ends of the fifth section of the extension rope (101), the sixth section of the extension rope (201), and the seventh section of the extension rope (301).

4. The high-efficiency single-arm crane according to claim 1, characterized in that: The first group of winch mechanisms (102), the second group of winch mechanisms (202) and the third group of winch mechanisms (302) are arranged in a stepped manner, and anti-interference baffles (7) are provided between adjacent winch mechanisms. The height of the baffles is greater than 1.5 times the diameter of the outermost winding rope.

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