Hoisting mechanism of a double-sling crane

Abstract

The utility model relates to double-sling crane technology field especially relates to a kind of lifting mechanism of double-sling crane, including mobile seat, the mobile seat includes seat shell and hoist wheel frame, the hoist wheel frame is evenly installed on the four corners of seat shell, and hoist wheel frame is fixedly connected with seat shell, the lower end of seat shell is fixedly installed with lifting shell, rotatingly installed with winding wheel in the lifting shell, and driving assembly that driving winding wheel rotates is also fixedly installed on the lifting shell, the lower portion of lifting shell is provided with lifting hook assembly, and lifting rope that adjusts the height of lifting hook assembly is also installed on winding wheel. The cooperation of the present application through stabilizing sling assembly and power component can effectively reduce the swing of lifting hook assembly in hoisting process, make hoisting goods more stable, improve the accuracy and safety of hoisting operation. Through the structural design of lifting shell, and reinforcing link is reinforced, the overall strength is enhanced, can bear greater hoisting weight.

Description

Technical Field

[0001] This utility model relates to the field of double-spreader crane technology, and in particular to a lifting mechanism for a double-spreader crane. Background Technology

[0002] Cranes play an indispensable role as important material handling equipment in many fields such as modern industrial production, construction, and logistics. They can lift, lower, and move heavy objects horizontally, greatly improving work efficiency and reducing labor costs.

[0003] Traditional cranes often experience hook swaying during lifting operations. This is because inertia, wind force, and other unstable factors during operation can cause the hook assembly to swing. This swaying not only leads to instability in the lifted items, making it difficult to accurately place them in the designated position and reducing the accuracy of lifting operations, but also poses significant safety hazards. Furthermore, traditional lifting mechanisms are not smooth enough during rope deployment and retraction, prone to jamming and entanglement, resulting in unstable operation, increasing the probability of malfunctions, and affecting the normal use of the crane. Utility Model Content

[0004] This utility model solves the problems in related technologies and proposes a lifting mechanism for a double-sling crane.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A lifting mechanism for a double-sling crane includes a movable base, which comprises a base shell and a wheel frame. The wheel frame is evenly installed on the four corners of the base shell and is fixedly connected to the base shell. A lifting shell is fixedly installed at the lower end of the base shell. A winding wheel is rotatably installed in the lifting shell, and a drive assembly for driving the winding wheel to rotate is also fixedly installed on the lifting shell. A hook assembly is provided below the lifting shell, and a lifting rope for adjusting the height of the hook assembly is installed on the winding wheel. One end of the lifting rope is wound on the winding wheel, and the other end of the lifting rope is fixedly connected to the lifting shell. Two sets of stabilizing assemblies connected to the sides of the hook assembly are provided on both sides of the lifting shell, and a power assembly for driving the two sets of stabilizing assemblies to rotate synchronously in opposite directions is fixedly installed on the rear end face of the lifting shell.

[0007] As a preferred embodiment, the hanging wheel frame includes a vertical plate and a track wheel. The lower end of the vertical plate is fixedly installed on the outer side of the base housing, and the track wheel is rotatably installed on the inner side of the vertical plate. A drive motor for driving the track wheel to rotate is also fixedly installed on the vertical plate.

[0008] As a preferred embodiment, the lifting shell includes a connecting middle shell and side plates. The side plates are configured as two sets, and the two sets of side plates are fixedly installed at both ends of the connecting middle shell. A reinforcing connecting rod is also fixedly installed between the two sets of side plates.

[0009] As a preferred embodiment, the winding wheel includes a rope winding wheel and a main shaft, with both ends of the main shaft rotatably mounted on the side plate, and the rope winding wheel sleeved and fixed on the side plate.

[0010] As a preferred embodiment, the drive assembly includes a back motor and a gearbox. The back motor is fixedly mounted on the rear end face of the side plate, and the gearbox is fixedly mounted on the outer side face of the side plate. The output shaft of the back motor is connected to the input end of the gearbox, and the output end of the gearbox is connected to the main shaft.

[0011] As a preferred embodiment, the hook assembly includes a hook housing, a hook, and a rope pulley. The rope pulley is rotatably installed in the hook housing and is suspended on the lifting rope. The hook is rotatably installed at the lower end of the hook housing. Connecting lugs are also fixedly installed on both sides of the hook housing.

[0012] As a preferred embodiment, the stabilizing assembly includes a housing, a long shaft, a roller, and a side pull rope connected to the connecting ear plate. The housing is fixedly installed on the outer side of the side plate, the long shaft is rotatably installed on the housing, and a matching wheel is fixedly installed at the rear end of the long shaft. The roller is sleeved and fixed on the long shaft.

[0013] As a preferred embodiment, the power assembly includes a connecting horizontal plate and two sets of pulleys. The connecting horizontal plate is fixedly installed on the rear end face of the two sets of side plates. The two sets of pulleys are rotatably installed on the connecting horizontal plate, and the two sets of pulleys are respectively connected to the mating wheels on the two sets of long shafts by belts. The two sets of pulleys are connected by two meshing gears. A power motor for driving the pulleys to rotate is also fixedly installed on the connecting horizontal plate.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By coordinating the stabilizing component and the power component, this application effectively reduces the swaying of the hook assembly during lifting, making the lifted items more stable and improving the accuracy and safety of lifting operations. Through the structural design of the lifting shell and reinforcement with connecting rods, the overall strength is enhanced, enabling it to withstand greater lifting weights and extending the service life of the lifting mechanism. The installation of the lifting wheel frame allows the lifting mechanism to move autonomously on the track, expanding the lifting range, improving the crane's flexibility and work efficiency, and, in conjunction with the design of the drive component and reel, ensuring smooth rope winding and unwinding, resulting in more stable and reliable operation and reducing the occurrence of malfunctions. Attached Figure Description

[0015] Figure 1This is a bottom perspective view of the overall structure of this utility model;

[0016] Figure 2 This is a top perspective view of the overall structure of this utility model;

[0017] Figure 3 yes Figure 1 A front view of the device shown;

[0018] Figure 4 yes Figure 1 Rear view of the device shown;

[0019] Figure 5 yes Figure 1 Side view of the device shown.

[0020] In the diagram: 1. Moving seat; 11. Seat housing; 12. Hanging wheel frame; 121. Vertical plate; 122. Track wheel; 123. Drive motor; 2. Lifting shell; 21. Connecting middle shell; 22. Side plate; 23. Reinforcing connecting rod; 3. Winding wheel; 30. Lifting rope; 31. Rope winding wheel; 32. Main shaft; 4. Drive assembly; 41. Back motor; 42. Gearbox; 5. Hook assembly; 51. Hook shell; 511. Connecting ear plate; 52. Hook; 53. Rope hanging wheel; 6. Stabilizing assembly; 61. Outer shell; 62. Long shaft; 621. Matching wheel; 63. Winding roller; 64. Side pull rope; 7. Power assembly; 70. Power motor; 71. Connecting horizontal plate; 72. Pulley; 73. Gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. 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 scope of protection of the present utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0027] Reference Figure 1 , Figure 2 and Figure 3 A lifting mechanism for a double-sling crane includes a movable base 1, which includes a base shell 11 and a wheel frame 12. The wheel frame 12 is evenly installed on the four corners of the base shell 11 and is fixedly connected to the base shell 11. A lifting shell 2 is fixedly installed at the lower end of the base shell 11. A winding wheel 3 is rotatably installed in the lifting shell 2, and a drive assembly 4 for driving the winding wheel 3 to rotate is also fixedly installed on the lifting shell 2. A hook assembly 5 is provided below the lifting shell 2, and a lifting rope 30 for adjusting the height of the hook assembly 5 is also installed on the winding wheel 3. One end of the lifting rope 30 is wound on the winding wheel 3, and the other end of the lifting rope 30 is fixedly connected to the lifting shell 2. Two sets of stabilizing assemblies 6 connected to the two sides of the hook assembly 5 are also provided on both sides of the lifting shell 2, and a power assembly 7 for driving the two sets of stabilizing assemblies 6 to rotate synchronously in opposite directions is fixedly installed on the rear end face of the lifting shell 2. The movable base 1 facilitates the movement of the entire lifting mechanism on the track, expanding the lifting range. The winding wheel 3 in the lifting shell 2 rotates under the drive of the drive assembly 4, and the height of the hook assembly 5 is adjusted via the lifting rope 30 to achieve the lifting and lowering of items. The cooperation of the stabilizing assembly 6 and the power assembly 7 ensures the stability of the hook assembly 5 during lifting, reducing swaying and improving the accuracy and safety of lifting operations. The lifting wheel frame 12 includes a vertical plate 121 and track wheels 122. The lower end of the vertical plate 121 is fixedly mounted on the outer surface of the base shell 11, and the track wheels 122 are rotatably mounted on the inner surface of the vertical plate 121. A drive motor 123 that drives the track wheels 122 is also fixedly mounted on the vertical plate 121. The structural design of the lifting wheel frame 12 allows the lifting mechanism to move stably on the track. The vertical plate 121 provides a mounting base for the track wheels 122, and the drive motor 123 drives the track wheels 122 to rotate, enabling the autonomous movement of the lifting mechanism and improving the crane's flexibility and work efficiency.

[0028] Reference Figure 1 and Figure 2 The hoisting shell 2 includes a connecting middle shell 21 and side plate sections 22. Two sets of side plate sections 22 are fixedly installed at both ends of the connecting middle shell 21. A reinforcing connecting rod 23 is also fixedly installed between the two sets of side plate sections 22. The hoisting shell 2 adopts a combined structure of the connecting middle shell 21 and side plate sections 22, and is reinforced by the reinforcing connecting rod 23, enhancing the overall strength and stability of the hoisting shell 2, enabling it to withstand greater lifting weights and extending the service life of the hoisting mechanism. The winding reel 3 includes a rope winding wheel 31 and a main shaft 32. Both ends of the main shaft 32 are rotatably mounted on the side plate sections 22, and the rope winding wheel 31 is sleeved and fixed on the side plate sections 22. The design of the rope winding wheel 31 and the main shaft 32 of the winding reel 3 allows the lifting rope 30 to be wound orderly on the rope winding wheel 31, ensuring smooth winding and unwinding of the lifting rope 30 during lifting, avoiding tangling and jamming of the lifting rope 30, and improving the reliability of the hoisting mechanism.

[0029] Reference Figure 1 and Figure 4 The drive assembly 4 includes a back motor 41 and a gearbox 42. The back motor 41 is fixedly mounted on the rear end face of the side plate 22, and the gearbox 42 is fixedly mounted on the outer side face of the side plate 22. The output shaft of the back motor 41 is connected to the input end of the gearbox 42, and the output end of the gearbox 42 is connected to the main shaft 32. The cooperation between the back motor 41 and the gearbox 42 of the drive assembly 4 provides a stable driving force for the winding reel 3. The gearbox 42 can adjust the output speed and torque according to actual needs, making the rotation of the winding reel 3 smoother and improving the accuracy of the lifting operation.

[0030] Reference Figure 2 and Figure 3 The hook assembly 5 includes a hook housing 51, a hook 52, and a rope pulley 53. The rope pulley 53 is rotatably mounted in the hook housing 51 and suspended from the lifting rope 30. The hook 52 is rotatably mounted at the lower end of the hook housing 51. Connecting lugs 511 are also fixedly mounted on both sides of the hook housing 51. The rope pulley 53 of the hook assembly 5 is suspended from the lifting rope 30, allowing the hook assembly 5 to move up and down as the lifting rope 30 is extended and retracted. The hook 52 is rotatably mounted at the lower end of the hook housing 51, facilitating the hanging and removal of items. The connecting lugs 511 provide a connection point for the side pull rope 64 of the stabilizing assembly 6, further ensuring the stability of the hook assembly 5.

[0031] Reference Figure 3 , Figure 4 and Figure 5 The stabilizing assembly 6 includes a housing 61, a long shaft portion 62, a winding roller 63, and a side pull rope 64 connected to the connecting ear plate 511. The housing 61 is fixedly installed on the outer side surface of the side plate portion 22. The long shaft portion 62 is rotatably installed on the housing 61, and a mating wheel 621 is fixedly installed at the rear end of the long shaft portion 62. The winding roller 63 is sleeved and fixed on the long shaft portion 62. The housing 61 of the stabilizing assembly 6 provides protection and support for the long shaft portion 62 and the winding roller 63. The rotation of the long shaft portion 62 drives the winding roller 63 to rotate, thereby realizing the winding and unwinding of the side pull rope 64. The mating wheel 621 is designed to facilitate connection with the belt of the power assembly 7 to realize the transmission of power.

[0032] Reference Figure 4 and Figure 5The power assembly 7 includes a connecting horizontal plate 71 and two sets of pulleys 72. The connecting horizontal plate 71 is fixedly installed on the rear end face of the two sets of side plates 22. The two sets of pulleys 72 are rotatably mounted on the connecting horizontal plate 71, and are respectively connected to mating wheels 621 on the two sets of long shafts 62 via belts. The two sets of pulleys 72 are also connected by two meshing gears 73. A power motor 70 for driving the pulleys 72 to rotate is also fixedly installed on the connecting horizontal plate 71. The cooperation of the pulleys 72, gears 73 and power motor 70 of the power assembly 7 can drive the two sets of lifting assemblies 6 to rotate synchronously in opposite directions. Through synchronous reverse rotation, the side pull rope 64 can apply opposite tension to both sides of the hook assembly 5, effectively reducing the sway of the hook assembly 5 and improving the stability of lifting.

[0033] The drive motor 123 that drives the track wheel 122 can be a Y-series three-phase asynchronous motor. This series of motors features high efficiency, energy saving, and good performance, and the power can be selected according to the actual load of the lifting mechanism. The back motor 41 and the power motor 70 can also be Y-series three-phase asynchronous motors, with the specific model determined according to the required torque and speed. The reduction gearbox 42 can be a planetary gearbox 73, which has the advantages of small size, high transmission efficiency, and large load-bearing capacity, and can meet the torque and speed requirements of the lifting mechanism. The hoisting rope 30 and the side pull rope 64 can be high-strength steel wire ropes, such as 6×19 type steel wire ropes, which have high strength and wear resistance and can withstand large tensile forces. The outer shell 61 and the seat shell 11 can be made of Q235 steel, which has good plasticity and toughness and can meet the structural strength requirements of the lifting mechanism.

[0034] Working principle: When lifting an item, the drive motor 123 is started, driving the track wheel 122 to rotate, moving the lifting mechanism to the appropriate position. The back motor 41 is started, driving the winding wheel 3 to rotate through the reduction gearbox 42, winding the lifting rope 30, raising the hook assembly 5, and suspending the item on the hook 52. Then, the winding wheel 3 is rotated in the opposite direction to lower the lifting rope 30, lowering the item to the designated position. During the lifting process, the power motor 70 is started, driving the two sets of stabilizing assemblies 6 to rotate synchronously in opposite directions through the pulley 72, gear 73, and belt, winding and releasing the side pull rope 64 to maintain the stability of the hook assembly 5.

[0035] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A lifting mechanism for a double-spreader crane, comprising a movable base (1), characterized in that: The movable base (1) includes a base shell (11) and a hanging wheel frame (12). The hanging wheel frame (12) is evenly installed on the four corners of the base shell (11) and is fixedly connected to the base shell (11). A lifting shell (2) is fixedly installed at the lower end of the base shell (11). A winding wheel (3) is rotatably installed in the lifting shell (2), and a drive assembly (4) for driving the winding wheel (3) to rotate is also fixedly installed on the lifting shell (2). A bottom part of the lifting shell (2) is provided. There is a hook assembly (5), and a lifting rope (30) for adjusting the height of the hook assembly (5) is also installed on the winding reel (3). One end of the lifting rope (30) is wound on the winding reel (3), and the other end of the lifting rope (30) is fixedly connected to the hoisting shell (2). Two sets of stabilizing assemblies (6) connected to the two sides of the hook assembly (5) are also provided on both sides of the hoisting shell (2). A power assembly (7) for driving the two sets of stabilizing assemblies (6) to rotate synchronously in opposite directions is fixedly installed on the rear end face of the hoisting shell (2).

2. The hoisting mechanism of a double-sling crane according to claim 1, characterized in that: The hanging wheel frame (12) includes a vertical plate (121) and a track wheel (122). The lower end of the vertical plate (121) is fixedly installed on the outer side of the seat housing (11). The track wheel (122) is rotatably installed on the inner side of the vertical plate (121). A drive motor (123) for driving the track wheel (122) to rotate is also fixedly installed on the vertical plate (121).

3. The hoisting mechanism of a double-sling crane according to claim 2, characterized in that: The lifting shell (2) includes a connecting middle shell (21) and a side plate (22). The side plate (22) is configured as two sets, and the two sets of side plate (22) are fixedly installed at both ends of the connecting middle shell (21). A reinforcing connecting rod (23) is also fixedly installed between the two sets of side plate (22).

4. The hoisting mechanism of a double-sling crane according to claim 3, characterized in that: The winding wheel (3) includes a rope winding wheel (31) and a main shaft (32). The two ends of the main shaft (32) are rotatably mounted on the side plate (22), and the rope winding wheel (31) is sleeved and fixed on the side plate (22).

5. The hoisting mechanism of a double-sling crane according to claim 4, characterized in that: The drive assembly (4) includes a back motor (41) and a gearbox (42). The back motor (41) is fixedly installed on the rear end face of the side plate (22), and the gearbox (42) is fixedly installed on the outer side face of the side plate (22). The output shaft of the back motor (41) is connected to the input end of the gearbox (42), and the output end of the gearbox (42) is connected to the main shaft (32).

6. The hoisting mechanism of a double-sling crane according to claim 5, characterized in that: The hook assembly (5) includes a hook housing (51), a hook (52) and a rope pulley (53). The rope pulley (53) is rotatably installed in the hook housing (51) and is suspended on the rope (30). The hook (52) is rotatably installed at the lower end of the hook housing (51). Connecting ear plates (511) are also fixedly installed on both sides of the hook housing (51).

7. The hoisting mechanism of a double-sling crane according to claim 6, characterized in that: The stabilizing assembly (6) includes a housing (61), a long shaft (62), a roller (63), and a side pull rope (64) connected to the connecting ear plate (511). The housing (61) is fixedly installed on the outer side of the side plate (22). The long shaft (62) is rotatably installed on the housing (61), and a mating wheel (621) is fixedly installed at the rear end of the long shaft (62). The roller (63) is sleeved and fixed on the long shaft (62).

8. The hoisting mechanism of a double-sling crane according to claim 7, characterized in that: The power assembly (7) includes a connecting plate (71) and two sets of pulleys (72). The connecting plate (71) is fixedly installed on the rear end face of the two sets of side plates (22). The two sets of pulleys (72) are rotatably installed on the connecting plate (71). The two sets of pulleys (72) are respectively connected to the mating wheels (621) on the two sets of long shafts (62) by belts. The two sets of pulleys (72) are connected by two meshing gears (73). A power motor (70) for driving the pulleys (72) to rotate is also fixedly installed on the connecting plate (71).

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