Multifunctional rigging amplitude variation assembly

Abstract

The utility model relates to a multifunctional rigging amplitude variation assembly which comprises a U-shaped supporting arm, an amplitude variation pulley is rotatably installed on the inner side of the U-shaped supporting arm, an anti-disengaging mechanism used for preventing a steel wire rope from being disengaged from the amplitude variation pulley is arranged on the U-shaped supporting arm, and the anti-disengaging mechanism comprises a connecting plate movably installed on the inner side of the U-shaped supporting arm. The lower surface of the connecting plate is fixedly provided with two U-shaped mounting frames, and the inner sides of the U-shaped mounting frames are rotatably provided with anti-disengagement pressing rollers. According to the multifunctional rigging variable-amplitude assembly, the anti-disengaging mechanism is arranged on the U-shaped supporting arm, when the multifunctional rigging variable-amplitude assembly is used, a steel wire rope on the variable-amplitude pulley can be pressed downwards through the anti-disengaging pressing and covering roller, the steel wire rope on the variable-amplitude pulley is laterally resisted through the side baffle, and the steel wire rope can be prevented from being disengaged from the variable-amplitude pulley; the connection stability between the steel wire rope and the variable-amplitude pulley is improved, and meanwhile, the variable-amplitude pulley is arranged in the U-shaped supporting arm, so that sundries can be prevented from falling on the variable-amplitude pulley.

Description

Technical Field

[0001] The utility model relates to the technical field of rigging, in particular to a multifunctional rigging luffing component. Background Art

[0002] Multifunctional rigging is a lifting tool with multiple functions and uses. It is usually composed of hooks, slings, connectors, etc. It can be used in various operating occasions such as lifting, hoisting, fixing, and traction. It is suitable for various engineering projects and industries. The rigging luffing assembly is an important component of lifting machinery. It is mainly used to change the lifting range of the lifting machinery, that is, the trajectory radius of the lifting hook. This component usually includes a pulley block, a winch, a wire rope, a guide device, etc. In lifting operations, according to different operating requirements, the operating radius of the lifting object can be adjusted by operating the rigging luffing assembly to ensure the safety and efficiency of the lifting process.

[0003] However, the existing rigging luffing pulley lacks protective devices. When the luffing pulley is in use, there is a risk that the wire rope will be detached from the pulley, and some debris is easily adhered to the surface of the pulley, causing the pulley to rotate unsmoothly, affecting the normal use of the pulley. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a multifunctional rigging luffing assembly, which has the advantage of high safety in use and solves the problem that the existing rigging luffing pulley lacks a protective device, there is a risk of the wire rope detaching from the pulley when the luffing pulley is in use, and some debris easily sticks to the pulley surface, causing the pulley to rotate unsmoothly, thus affecting the normal use of the pulley.

[0005] To achieve the above object, the utility model provides the following technical solutions: a multifunctional rigging luffing assembly, comprising a U-shaped support arm, a luffing pulley is rotatably mounted inside the U-shaped support arm, and an anti-slip mechanism for preventing the wire rope from detaching from the luffing pulley is provided on the U-shaped support arm;

[0006] The anti-slip mechanism includes a connecting plate movably mounted on the inner side of the U-shaped support arm, two U-shaped mounting brackets are fixedly mounted on the lower surface of the connecting plate, an anti-slip pressing roller is rotatably mounted on the inner side of the U-shaped mounting bracket, a number of arc-shaped spring plates are fixedly mounted on the inner surface of the U-shaped support arm, a connecting mechanism is provided between the U-shaped support arm and the connecting plate, and two side baffles are fixedly mounted on the lower surface of the connecting plate.

[0007] Furthermore, mounting grooves are provided on the inner surfaces of opposite sides of the U-shaped support arm, bearings are fixedly installed inside the mounting grooves, a rotating shaft is fixedly installed inside the bearings, and the variable amplitude pulley is fixedly installed on the surface of the rotating shaft.

[0008] Furthermore, a slot is provided on the surface of the side baffle, and the width of the slot is greater than the diameter of the rotating shaft.

[0009] Furthermore, the distance between the opposite side surfaces of the two side baffles is greater than the thickness of the luffing pulley, and the distance between the side baffle and the side surface of the luffing pulley is not greater than five millimeters.

[0010] Furthermore, two grooves are provided on the upper surface of the connecting plate, and the ends of the arc-shaped spring pieces are located in the grooves, and the ends of the arc-shaped spring pieces are in sliding contact with the inner surfaces of the grooves.

[0011] Furthermore, the connecting mechanism includes two rectangular cavities opened inside the U-shaped support arm, a block is movably installed in the rectangular cavity, a connecting rod that penetrates the outer surface of the U-shaped support arm is fixedly installed on the surface of the block, and the bottom of the connecting rod is fixedly connected to the upper surface of the connecting plate.

[0012] Furthermore, a circular hole communicating with the rectangular cavity is formed on the surface of the U-shaped support arm, the connecting rod is located in the circular hole, and the outer surface of the connecting rod is in sliding contact with the inner surface of the circular hole.

[0013] Furthermore, a pull rod penetrating to the upper surface of the U-shaped support arm is fixedly installed on the surface of the connecting plate, and a pull ring is fixedly installed on the top of the pull rod.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The multifunctional rigging luffing assembly is provided with an anti-slip mechanism on the U-shaped supporting arm. When in use, the steel wire rope on the luffing pulley can be pressed down by the anti-slip pressing roller, and the steel wire rope on the luffing pulley can be laterally resisted by the side baffle plate, so as to prevent the steel wire rope from being detached from the luffing pulley, which is beneficial to improving the connection stability between the steel wire rope and the luffing pulley. At the same time, arranging the luffing pulley inside the U-shaped supporting arm can prevent debris from falling on the luffing pulley, thus solving the problem of lack of protective devices on the existing rigging luffing pulley, the risk of the steel wire rope being detached from the pulley when the luffing pulley is in use, and some debris easily sticking to the pulley surface causing the pulley to rotate unsmoothly, thus affecting the normal use of the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an external schematic diagram of the U-shaped support arm of the utility model structure;

[0017] Figure 2 This is a schematic diagram of the inner side of the U-shaped support arm of the utility model structure;

[0018] Figure 3 This is a schematic diagram of the location of the installation slot of the structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the anti-slip pressure-covering roller of the utility model structure.

[0020] In the figure: 1. U-shaped support arm; 2. variable amplitude pulley; 3. connecting plate; 4. U-shaped mounting frame; 5. anti-slip and pressure-covering roller; 6. arc-shaped spring piece; 7. side baffle plate; 8. mounting groove; 9. bearing; 10. rotating shaft; 11. slot; 12. groove; 13. rectangular cavity; 14. block; 15. connecting rod; 16. round hole; 17. pull rod; 18. pull ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The multifunctional rigging luffing assembly in this embodiment comprises a U-shaped support arm 1, a luffing pulley 2 is rotatably installed inside the U-shaped support arm 1, a mounting groove 8 is provided on the surface of the opposite side inside the U-shaped support arm 1, a bearing 9 is fixedly installed inside the mounting groove 8, a rotating shaft 10 is fixedly installed inside the bearing 9, the luffing pulley 2 is fixedly installed on the surface of the rotating shaft 10, so that the rotating shaft 10 and the luffing pulley 2 can rotate inside the U-shaped support arm 1, and an anti-slip mechanism for preventing the wire rope from being separated from the luffing pulley 2 is provided on the U-shaped support arm 1, and the anti-slip mechanism comprises a connecting plate 3 movably installed inside the U-shaped support arm 1, two U-shaped mounting frames 4 are fixedly installed on the lower surface of the connecting plate 3, an anti-slip pressure roller 5 is rotatably installed inside the U-shaped mounting frame 4, a number of arc-shaped spring pieces 6 are fixedly installed on the inner surface of the U-shaped support arm 1, and the connecting plate 3 Two grooves 12 are provided on the upper surface, and the end of the arc-shaped spring piece 6 is located in the groove 12. The end of the arc-shaped spring piece 6 is in sliding contact with the inner surface of the groove 12. The arc-shaped spring piece 6 can be limited by the groove 12 to prevent the arc-shaped spring piece 6 from deflecting when moving on the connecting plate 3. Two side baffles 7 are fixedly installed on the lower surface of the connecting plate 3. The surface of the side baffle 7 is provided with a card groove 11. The width of the card groove 11 is greater than the diameter of the rotating shaft 10. By providing the card groove 11 on the surface of the side baffle 7, the side baffle 7 can be stuck on the surface of the rotating shaft 10. The spacing between the opposite side surfaces of the two side baffles 7 is greater than the thickness of the variable amplitude pulley 2. The spacing between the side baffle 7 and the side surface of the variable amplitude pulley 2 is not greater than five millimeters. The two side baffles 7 can be used to laterally limit the steel wire rope on the variable amplitude pulley 2.

[0023] A connecting mechanism is provided between the U-shaped support arm 1 and the connecting plate 3, and the connecting mechanism includes two rectangular cavities 13 opened inside the U-shaped support arm 1, a stopper 14 is movably installed in the rectangular cavity 13, and a connecting rod 15 penetrating through the outer surface of the U-shaped support arm 1 is fixedly installed on the surface of the stopper 14, and the bottom of the connecting rod 15 is fixedly connected to the upper surface of the connecting plate 3, so that the connecting plate 3 and the U-shaped support arm 1 can be connected together through the connecting mechanism without affecting the movement of the connecting plate 3, a circular hole 16 connected to the rectangular cavity 13 is opened on the surface of the U-shaped support arm 1, and the connecting rod 15 is located in the circular hole 16, and the outer surface of the connecting rod 15 is in sliding contact with the inner surface of the circular hole 16, so that the connecting rod 15 can be extended and retracted in the rectangular cavity 13, and a pull rod 17 penetrating through the upper surface of the U-shaped support arm 1 is fixedly installed on the surface of the connecting plate 3, and a pull ring 18 is fixedly installed on the top of the pull rod 17, so that the connecting plate 3 can be pulled conveniently by the pull rod 17 and the pull ring 18.

[0024] It should be noted that the diameter of the stopper 14 in this embodiment is greater than the diameter of the circular hole 16 .

[0025] It should be noted that the inner groove of the anti-slip pressing roller 5 in this embodiment is V-shaped.

[0026] It should be noted that the cross-sectional shape of the U-shaped support arm 1 in this embodiment is U-shaped.

[0027] It should be noted that the cross-sectional shape and size of the stopper 14 in this embodiment are the same as the cross-sectional shape and size of the inner cross-sectional shape of the rectangular cavity 13 , and the side surface of the stopper 14 is in sliding contact with the inner surface of the rectangular cavity 13 .

[0028] It should be noted that the height of the anti-slip pressing roller 5 in this embodiment is higher than the height of the luffing pulley 2 .

[0029] The working principle of the above embodiment is:

[0030] When in use, the connecting plate 3 is pulled upwards through the pull ring 18 and the pull rod 17, so that the connecting rod 15 shrinks into the rectangular cavity 13, and the arc-shaped spring piece 6 can be squeezed through the connecting plate 3, so that the end of the arc-shaped spring piece 6 slides in the groove 12, and then the wire rope is placed between the variable amplitude pulley 2 and the anti-slip pressure roller 5, and the connecting plate 3 and the anti-slip pressure roller 5 are squeezed downwards by utilizing the rebound of the arc-shaped spring piece 6, so that the anti-slip pressure roller 5 is in close contact with the wire rope, and at the same time, the side baffle 7 moves downwards so that the rotating shaft 10 is located in the slot 11.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional rigging luffing assembly, comprising a U-shaped support arm (1), wherein a luffing pulley (2) is rotatably mounted inside the U-shaped support arm (1), characterized in that: The U-shaped support arm (1) is provided with an anti-slip mechanism for preventing the steel wire rope from being detached from the luffing pulley (2); The anti-slip mechanism comprises a connecting plate (3) movably mounted on the inner side of a U-shaped support arm (1); two U-shaped mounting frames (4) are fixedly mounted on the lower surface of the connecting plate (3); an anti-slip pressing roller (5) is rotatably mounted on the inner side of the U-shaped mounting frame (4); a number of arc-shaped spring sheets (6) are fixedly mounted on the inner side surface of the U-shaped support arm (1); a connecting mechanism is provided between the U-shaped support arm (1) and the connecting plate (3); and two side baffles (7) are fixedly mounted on the lower surface of the connecting plate (3).

2. The multifunctional rigging luffing assembly according to claim 1, characterized in that: The U-shaped support arm (1) has mounting grooves (8) formed on opposite sides of its interior, a bearing (9) is fixedly mounted inside the mounting groove (8), a rotating shaft (10) is fixedly mounted inside the bearing (9), and the variable amplitude pulley (2) is fixedly mounted on the surface of the rotating shaft (10).

3. The multifunctional rigging luffing assembly according to claim 1, characterized in that: A clamping groove (11) is provided on the surface of the side baffle (7), and the width of the clamping groove (11) is greater than the diameter of the rotating shaft (10).

4. The multifunctional rigging luffing assembly according to claim 1, characterized in that: The distance between the opposite side surfaces of the two side baffles (7) is greater than the thickness of the luffing pulley (2), and the distance between the side baffles (7) and the side surface of the luffing pulley (2) is not greater than five millimeters.

5. The multifunctional rigging luffing assembly according to claim 1, characterized in that: The upper surface of the connecting plate (3) is provided with two grooves (12), the end of the arc-shaped spring piece (6) is located in the groove (12), and the end of the arc-shaped spring piece (6) is in sliding contact with the inner surface of the groove (12).

6. The multifunctional rigging luffing assembly according to claim 1, characterized in that: The connection mechanism comprises two rectangular cavities (13) opened inside the U-shaped support arm (1), a stopper (14) being movably installed inside the rectangular cavity (13), a connecting rod (15) penetrating the outer surface of the U-shaped support arm (1) being fixedly installed on the surface of the stopper (14), and the bottom of the connecting rod (15) is fixedly connected to the upper surface of the connecting plate (3).

7. The multifunctional rigging luffing assembly according to claim 6, characterized in that: A circular hole (16) communicating with the rectangular cavity (13) is provided on the surface of the U-shaped support arm (1), the connecting rod (15) is located in the circular hole (16), and the outer surface of the connecting rod (15) is in sliding contact with the inner surface of the circular hole (16).

8. The multifunctional rigging luffing assembly according to claim 1, characterized in that: A pull rod (17) penetrating the upper surface of the U-shaped support arm (1) is fixedly mounted on the surface of the connecting plate (3), and a pull ring (18) is fixedly mounted on the top of the pull rod (17).

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