Winding hook retracting mechanism and folding arm crane

Abstract

The utility model discloses a winch hook retracting mechanism and a folding arm crane, which relate to the technical field of hoisting slings, and comprise a winch arranged at the bottom of a suspension arm, an arm head connecting body assembly arranged at the far end of the suspension arm, a guide bracket and a movable lifting hook assembly, the arm head connecting body assembly is provided with a first rope guide wheel and a wedge-shaped joint; the upper end of the guide bracket is hinged with the arm head connector assembly through a rotating shaft, and the lower end of the guide bracket is fixedly connected with the movable lifting hook assembly; the movable lifting hook assembly is provided with a second rope guide wheel; a steel wire rope of the winch sequentially bypasses the first rope guide wheel and the second rope guide wheel and then is fixedly connected with the wedge-shaped connector. According to the utility model, the problems of quick assembly and disassembly of the movable hoisting hook of the folding arm crane and the winch and folding along with the suspension arm are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting slings, in particular to a winch hook collection mechanism and a folding arm crane. Background Art

[0002] The use scenarios of folding arm cranes are becoming more diverse and extensive. In order to improve the efficiency and economic benefits of use, various auxiliary tools are constantly emerging. For example, for folding arm cranes, adding a winch mechanism and realizing the hoisting operation through a movable hook can expand the operation mode of the folding arm crane and significantly improve the crane's operating performance. However, the above-mentioned folding arm crane lacks a matching hook retracting mechanism, which affects its convenience of use. Utility Model Content

[0003] In view of the defects existing in the prior art, the purpose of the utility model is to provide a winch hook collection mechanism and a folding arm crane, which solves the problem of fast installation and disassembly of the winch movable hook of the folding arm crane and the folding of the boom.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a winch hook collection mechanism, including a winch installed at the bottom of the boom and an arm head connector assembly installed at the far end of the boom, and also including a guide bracket and a movable hook assembly; the arm head connector assembly is provided with a first guide rope pulley and a wedge-shaped joint; the upper end of the guide bracket is hinged to the arm head connector assembly through a rotating shaft, and the lower end of the guide bracket is fixedly connected to the movable hook assembly; the movable hook assembly is provided with a second guide rope pulley; the wire rope of the winch is fixedly connected to the wedge-shaped joint after passing around the first guide rope pulley and the second guide rope pulley in turn.

[0005] A further improvement is that a groove-shaped connection positioning plate is provided on the outer side wall of the arm-head connection body assembly near the upper end, and the wedge-shaped joint is fixedly connected to the groove-shaped connection positioning plate.

[0006] A further improvement is that a semicircular rope guide groove is provided on the outer side wall of the arm head connecting body assembly, and the semicircular rope guide groove is located below the wedge joint.

[0007] A further improvement is that the outer side wall of the arm head connector assembly is provided with a limit block adapted to the guide bracket for limiting the hook retraction angle.

[0008] A further improvement is that the arm head connecting body assembly is connected to the hook hole and the auxiliary arm hole of the boom through a pin shaft.

[0009] The utility model also provides a folding arm crane, the lifting arm of which is provided with the hoisting hook collecting mechanism as mentioned above.

[0010] A further improvement is that the knuckle boom crane is provided with a multi-way valve for controlling the winch.

[0011] The beneficial effects of the utility model are:

[0012] The utility model solves the problem of quick installation and disassembly of the hoisting movable hook of the folding arm crane, and folding with the boom. The performance of the folding arm crane is greatly improved, and the convenience of use and economic efficiency are significantly improved. Through continuous innovation and continuous improvement, the market competitiveness of the company's products has been improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a winch hook collection mechanism in an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the winch hook collection mechanism after the hook is collected in the embodiment of the utility model;

[0015] Figure 3 It is a side view of the winch hook collection mechanism in the embodiment of the utility model;

[0016] Figure 4 It is an enlarged schematic diagram of the arm head connector assembly in the embodiment of the utility model;

[0017] Figure 5 This is a front view of a knuckle boom crane in an embodiment of the utility model;

[0018] Figure 6 It is a side view of a knuckle boom crane in an embodiment of the utility model;

[0019] Figure 7 This is a working principle diagram of a folding arm crane in an embodiment of the utility model.

[0020] Reference numerals:

[0021] 1- boom;

[0022] 2-arm head connector assembly; 21-pin shaft; 22-first guide rope wheel; 23-wedge joint; 24-groove type connection positioning plate; 25-semicircular guide rope groove; 26-limiting block;

[0023] 3-movable hook assembly; 31-second guide rope wheel;

[0024] 4-guide bracket; 41-rotating shaft;

[0025] 5- winch; 6- wire rope; 7- multi-way valve. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0027] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0029] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0030] See also Figure 1 to Figure 4 As shown, an embodiment of the utility model provides a winch hook collection mechanism, including a winch 5 installed at the bottom of the boom 1 and an arm head connector assembly 2 installed at the far end of the boom 1, and also including a guide bracket 4 and a movable hook assembly 3; the arm head connector assembly 2 is provided with a first guide rope wheel 22 and a wedge joint 23; specifically, a groove-type connection positioning plate 24 is provided near the upper end of the outer wall of the arm head connector assembly 2, and the wedge joint 23 is fixedly connected to the groove-type connection positioning plate 24. The outer wall of the arm head connector assembly 2 is provided with a semicircular guide rope groove 25, and the semicircular guide rope groove 25 is located below the wedge joint 23. The outer wall of the arm head connector assembly 2 is provided with a limit block 26 adapted to the guide bracket 4 for limiting the hook collection angle. The arm head connector assembly 2 is connected to the hook hole and jib hole of the boom 1 through a pin 21. The upper end of the guide bracket 4 is hinged to the arm head connector assembly 2 through a rotating shaft 41, and the lower end of the guide bracket 4 is fixedly connected to the movable hook assembly 3; the movable hook assembly 3 is provided with a second guide rope wheel 31; the wire rope 6 of the winch 5 is fixedly connected to the wedge joint 23 after passing through the first guide rope wheel 22 and the second guide rope wheel 31 in sequence.

[0031] See also Figure 5-6As shown, the embodiment of the utility model further provides a folding arm crane, the boom 1 of the folding arm crane is provided with the hoisting hook collection mechanism as described above. Specifically, the folding arm crane is provided with a multi-way valve 7 for controlling the hoist 5.

[0032] The working principle of the utility model is:

[0033] See also Figure 7 As shown, first use the pin to connect and fix the boom head connector assembly to the telescopic boom head of the folding boom crane; use the pin to connect the guide bracket to the bottom of the boom head connector assembly; start the winch, lower the drum wire rope, and the wire rope passes through the guide rope wheel of the boom head connector assembly and the guide bracket, and then passes through the guide rope wheel of the movable hook assembly; in the same way, after winding according to the design ratio requirement, pass the wire rope head through the semicircular guide rope groove on the side of the boom head connector assembly and fix it on the wedge joint; then align the wedge joint hole with the slot-type connection positioning plate hole of the boom head connector assembly, and insert the pin to fix it. After installation, control the multi-way valve handle to start the winch to collect the rope, and the movable hook assembly rises, so that the limit plate of the movable hook assembly contacts and rotates with the guide bracket. After reaching the set angle, the guide bracket contacts the limit block to play a limiting role.

[0034] The utility model is equipped with an arm head connector assembly, a guide bracket, and a movable hook assembly. Through the rope pulling force of the winch, the movable hook assembly is brought into contact with the guide bracket, and the guide limit rotation is performed to achieve the purpose of hook collection, thus forming a complete hook collection system. It meets the needs of quick installation, use, and disassembly of the winch mechanism of the folding arm crane, and at the same time, makes the structure of the whole machine more compact. After the winch movable hook is collected, it can be folded along with the folding arm crane boom, which increases the convenience and safety of use, solves the pain points of the majority of terminal customers, and has significant economic benefits.

[0035] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A winch hook collection mechanism, comprising a winch (5) mounted at the bottom of a boom (1) and an arm head connector assembly (2) mounted at the distal end of the boom (1), characterized in that: It also includes a guide bracket (4) and a movable hook assembly (3); The arm head connecting body assembly (2) is provided with a first guide rope wheel (22) and a wedge-shaped joint (23); The upper end of the guide bracket (4) is hinged to the arm head connecting body assembly (2) via a rotating shaft (41), and the lower end of the guide bracket (4) is fixedly connected to the movable hook assembly (3); The movable hook assembly (3) is provided with a second guide rope wheel (31); The steel wire rope (6) of the hoist (5) is fixedly connected to the wedge-shaped joint (23) after passing through the first guide rope wheel (22) and the second guide rope wheel (31) in sequence.

2. The winch hook collection mechanism according to claim 1, characterized in that: A groove-shaped connection positioning plate (24) is provided at a position near the upper end of the outer side wall of the arm-head connection body assembly (2), and the wedge-shaped joint (23) is fixedly connected to the groove-shaped connection positioning plate (24).

3. The winch hook collection mechanism according to claim 1, characterized in that: The outer side wall of the arm-head connecting body assembly (2) is provided with a semicircular rope guide groove (25), and the semicircular rope guide groove (25) is located below the wedge-shaped joint (23).

4. The winch hook collection mechanism according to claim 1, characterized in that: The outer side wall of the arm-head connecting body assembly (2) is provided with a limit block (26) adapted to the guide bracket (4) and used for limiting the hook retraction angle.

5. The winch hook collection mechanism according to claim 1, characterized in that: The arm head connecting body assembly (2) is connected to the hook hole and the auxiliary arm hole of the boom (1) through a pin shaft (21).

6. A folding arm crane, characterized in that: The boom (1) of the folding arm crane is provided with a hoisting hook collecting mechanism as claimed in any one of claims 1 to 5.

7. The folding arm crane according to claim 6, characterized in that: The folding arm crane is provided with a multi-way valve (7) for controlling the hoist (5).

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