Crane boom for crane

Abstract

The utility model discloses a cargo boom for a crane, and belongs to the technical field of cranes. Comprising a rotating arm assembly, a steel wire rope assembly arranged at the top of the rotating arm assembly, an electric hoist arranged at the bottom of the rotating arm assembly and a hook assembly arranged at the bottom of the electric hoist, the rotating arm assembly comprises a rotating arm, a first motor is arranged in a first shell, and the hook assembly comprises a second fixing block. A hook is arranged at the bottom of the second fixing block and comprises a supporting block, the side face of the supporting block is sleeved with a C-shaped hook, a rope guide is arranged at the top of the second motor, a fixing plate is arranged on the side face of the rope guide, and a plurality of rotating wheels are arranged on the side face of the fixing plate. By improving the hook assembly and the steel wire rope winding device, goods can be fixed more stably, damage to the electric hoist is reduced, and therefore the effect of improving the working efficiency of the crane is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more specifically to a lifting arm for a crane. Background Art

[0002] The boom, a key component of a crane, possesses a complex and sophisticated structure. It consists primarily of two major components: the front boom and the rear boom, which work together to ensure efficient and safe lifting operations. The front boom is the most flexible part of the boom, capable of not only pitching to accommodate loading and unloading at varying heights but also telescoping to adjust the operating range. The boom is equipped with sophisticated transmission mechanisms and drive devices, such as gears, chains, and motors. These mechanisms work together to enable the boom to perform various movements smoothly and accurately.

[0003] The rear boom, on the other hand, is relatively fixed, primarily providing support and stability. Its structure is typically more robust to withstand the weight of the front boom and container. It also connects to other crane components, such as the slewing mechanism and traveling gear, ensuring the crane's coordinated operation. These different structural configurations allow the boom to adapt to varying operating environments and requirements.

[0004] Although the existing device has many beneficial effects, the following problems still exist: the device may lack a wire rope assembly during use, and the wire rope cannot be better stored, thereby reducing the entanglement pressure of the wire on the electric hoist; secondly, although a hook is provided, it may be unhooked when the electric hoist moves, and it is unstable, so it needs to be improved. In view of this, we propose a crane arm for a crane. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of the utility model is to provide a crane boom to solve the problem of reducing the impact on the motor hoist and the instability proposed in the above background technology.

[0007] 2. Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A crane arm comprises a rotating arm assembly, a wire rope assembly arranged at the top of the rotating arm assembly, an electric hoist arranged at the bottom of the rotating arm assembly, and a hook assembly arranged at the bottom of the electric hoist;

[0010] in;

[0011] A rotating arm assembly, the rotating arm assembly comprising a rotating arm, a fixing block 1 being provided at the bottom of the rotating arm, and a supporting column being fixed at the bottom of the fixing block 1;

[0012] A wire rope assembly, comprising a housing 1 disposed on the top of a rotating arm, a motor 1 disposed inside the housing 1, a winding wheel disposed at the output end of the motor 1, and a wire-paying box disposed on the top of the rotating arm;

[0013] A hook assembly, the hook assembly comprising a second fixing block, a hook provided at the bottom of the second fixing block, the hook comprising a support block, a C-shaped hook provided on the side of the support block;

[0014] An electric hoist includes a second motor arranged at the bottom of a rotating arm, a rope guide is provided on the top of the second motor, a fixed plate is provided on the side of the rope guide, and a plurality of rotating wheels are provided on the side of the fixed plate.

[0015] Preferably, a limit block is fixedly provided on the side of the rotating arm, and a rotating groove is provided on the top of the rotating arm.

[0016] Preferably, grids are provided on both side surfaces of the shell one, and a rope outlet hole is provided on the side surface of the shell one.

[0017] Preferably, a steel wire rope is provided at the bottom of the wire box, a limiting plate is provided on the steel wire rope, and a plurality of grooves matching the steel wire rope are opened on the limiting plate.

[0018] Preferably, the wire-releasing box includes a second shell, a rope inlet hole is provided on the side of the second shell, a guide wheel 1 and a guide wheel 2 are provided inside the second shell, and a rope outlet hole 2 is provided inside the second shell.

[0019] Preferably, a rubber sleeve is provided on the side surface of the C-shaped hook, a resistance-increasing strip is integrally formed on the top of the rubber sleeve, and a card slot is provided on the side surface of the C-shaped hook.

[0020] Preferably, a clamping block is fixedly provided on the bottom of the support block, and the clamping block matches the clamping slot.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] The utility model increases the wire rope assembly and utilizes the winding wheel to facilitate the coordination with the wire box, and combines the first guide wheel and the second guide wheel to retract the wire rope, thereby effectively achieving the purpose of winding the wire, thereby reducing the winding pressure and reducing the impact on the motor hoist;

[0024] Secondly, the hook assembly is modified so that the support block and the C-shaped hook can be hung and moved, and the deadweight is used to achieve the purpose of self-locking. The rubber sleeve prevents the hung items from moving around. The card block of the support block and the card slot of the C-shaped hook cooperate with each other to effectively fix the items, making the lifting process of the entire crane arm more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall schematic diagram of a crane boom for a crane according to the utility model;

[0026] Figure 2 This is a disassembled schematic diagram of a crane boom for a crane according to the utility model;

[0027] Figure 3 This is a schematic diagram of a wire-paying box for a crane boom according to the utility model;

[0028] Figure 4 This is a schematic diagram of a hook for a crane boom according to the utility model;

[0029] Explanation of reference numerals in the figure: 100, rotating arm assembly; 110, rotating arm; 120, limiting block; 130, rotating groove; 140, fixing block 1; 150, supporting column; 200, wire rope assembly; 210, housing 1; 211, grid; 220, rope outlet hole 1; 230, motor 1; 240, reel; 250, wire pay-off box; 251, housing 2; 252, rope inlet hole; 253 , guide wheel one; 254, guide wheel two; 255, rope outlet hole two; 260, limit plate; 300, hook assembly; 310, fixed block two; 320, hook; 321, support block; 322, clamping block; 323, C-shaped hook; 324, rubber sleeve; 325, clamping slot; 400, electric hoist; 410, motor two; 420, rope guide; 430, fixed plate; 440, rotating wheel. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0033] A crane jib, see Figures 1 to 4 , comprising: a rotating arm assembly 100, a wire rope assembly 200 arranged at the top of the rotating arm assembly 100, an electric hoist 400 arranged at the bottom of the rotating arm assembly 100, and a hook assembly 300 arranged at the bottom of the electric hoist 400;

[0034] in;

[0035] The bottom of the rotating arm 110 is threadedly connected to a fixing block 140, and the bottom of the fixing block 140 is tightly welded with a support column 150;

[0036] The motor 230 is snap-fitted inside the housing 1 210 , and a reel 240 is provided at the output end of the motor 230 . The top of the rotating arm 110 is threadedly connected to a wire box 250 .

[0037] The bottom of the second fixing block 310 is threadedly connected to a hook 320, which includes a support block 321, and a C-shaped hook 323 is sleeved on the side of the support block 321;

[0038] A rope guide 420 is tightly welded to the top of the second motor 410 , a fixing plate 430 is threadedly connected to the side of the rope guide 420 , and four rotating wheels 440 are threadedly connected to the side of the fixing plate 430 .

[0039] At the same time, in order to allow the rotating arm 110 to rotate while preventing the hook assembly 300 from running out, specifically, the side of the rotating arm 110 is tightly welded with a limiting block 120, and the top of the rotating arm 110 is provided with a rotating groove 130.

[0040] Furthermore, in order to achieve a good heat dissipation effect for the motor 230 and facilitate the contraction of the rope, specifically, grids 211 are provided on both sides of the housing 210, and a rope outlet hole 220 is provided on the side of the housing 210.

[0041] It is worth noting that in order to prevent the wire rope from being completely retracted and to facilitate the bundling of the wire rope, specifically, the wire rope comes out from the bottom of the wire box 250, and the end of the wire rope is threadedly connected to the limit plate 260. The limit plate 260 is provided with a plurality of grooves that match the wire rope, and the grooves can assist in winding and fixing the wire rope.

[0042] It is worth noting that in order to make the wire rope extend and retract smoothly, specifically, the wire box 250 includes a second shell 251, a rope inlet hole 252 is provided on the side of the second shell 251, the internal thread of the second shell 251 is connected with a guide wheel 1 253 and a guide wheel 2 254, and a rope outlet hole 255 is provided inside the second shell 251.

[0043] Among them, the wire rope extends to the rope inlet hole 252 of the wire box 250 through the winding wheel 240, and is then guided by the guide wheel 1 253 and the guide wheel 2 254, and finally comes out from the rope outlet hole 2 255 inside the shell 2 251 to the bottom of the electric hoist 400 and connected to the limit plate 260.

[0044] Next, in order to make the fixing effect more secure, specifically, a rubber sleeve 324 is provided on the side of the C-shaped hook 323, and a resistance-enhancing strip is integrally formed on the top of the rubber sleeve 324. The resistance-enhancing strip is made of polyurethane, and a card slot 325 is opened on the side of the C-shaped hook 323.

[0045] Subsequently, in order to prevent the hook assembly 300 from being easily dispersed, specifically, a clamping block 322 is tightly welded to the bottom of the support block 321 , and the clamping block 322 matches the clamping slot 325 .

[0046] Among them, when a heavy object is hung on the C-shaped hook 323, gravity will make the C-shaped hook vertically downward and then close together with the support block 321. The clamping block 322 on the support block 321 and the clamping groove 325 on the C-shaped hook make it close more tightly, and the rubber sleeve 324 prevents the heavy object from shaking, so that the lifting effect is better.

[0047] In addition, the circuits, electronic components, and modules involved in this utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to the internal structure and method.

[0048] The device or equipment models involved in this article are as follows:

[0049] Motor 1 230: YZR11KW;

[0050] Motor 2 410: YZR-250M1.

[0051] Working principle:

[0052] When the device is in operation, the crane boom begins with the rotation of the rotating arm 110, followed by the activation of the wire rope assembly 200. When the motor 1 230 is activated, it drives the reel 240 to rotate, thereby winding or releasing the wire rope. The wire rope passes through the rope outlet hole 1 220 of the housing 1 210 and is guided by the payout box 250 to ensure smooth operation. The payout box 250 is equipped with a guide wheel 1 253 and a guide wheel 2 254, which work together to ensure that the wire rope maintains a certain tension and direction during release. Simultaneously, the groove on the limit plate 260 cooperates with the wire rope. When the hook assembly 300 is in operation, the lifting and lowering fixed block 2 310 and hook 320, through the combination of support block 321 and C-shaped hook 323, can securely hook the suspended object. The rubber sleeve 324 on the side of the C-shaped hook 323 increases friction to prevent the object from slipping. During the entire process, the electric hoist 400 realizes the lifting and movement of the hook assembly 300 through the cooperation of the motor 2 410 and the rope guide 420, thereby completing the lifting operation of the crane arm.

[0053] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane boom, characterized in that: include: A rotating arm assembly (100), a wire rope assembly (200) arranged at the top of the rotating arm assembly (100), an electric hoist (400) arranged at the bottom of the rotating arm assembly (100), and a hook assembly (300) arranged at the bottom of the electric hoist (400); in; A rotating arm assembly (100), the rotating arm assembly (100) comprising a rotating arm (110), a fixing block (140) being provided at the bottom of the rotating arm (110), and a supporting column (150) being fixed at the bottom of the fixing block (140); A wire rope assembly (200), the wire rope assembly (200) comprising a housing (210) disposed on the top of a rotating arm (110), a motor (230) disposed inside the housing (210), a winding wheel (240) disposed at the output end of the motor (230), and a wire-releasing box (250) disposed on the top of the rotating arm (110); A hook assembly (300), the hook assembly (300) comprising a second fixing block (310), a hook (320) being provided at the bottom of the second fixing block (310), the hook (320) comprising a supporting block (321), a C-shaped hook (323) being provided on the side surface of the supporting block (321); An electric hoist (400) includes a second motor (410) arranged at the bottom of a rotating arm (110), a rope guide (420) is provided on the top of the second motor (410), a fixed plate (430) is provided on the side of the rope guide (420), and a plurality of rotating wheels (440) are provided on the side of the fixed plate (430).

2. The crane boom according to claim 1, wherein: A limiting block (120) is fixedly provided on the side of the rotating arm (110), and a rotating groove (130) is provided on the top of the rotating arm (110).

3. The crane boom according to claim 2, wherein: Grids (211) are provided on both sides of the shell (210), and a rope outlet hole (220) is provided on the side of the shell (210).

4. The crane boom according to claim 3, wherein: A steel wire rope is provided at the bottom of the wire-releasing box (250), a limiting plate (260) is provided on the steel wire rope, and a plurality of grooves matching the steel wire rope are opened on the limiting plate (260).

5. The crane boom according to claim 4, characterized in that: The wire-releasing box (250) includes a second shell (251), a rope inlet hole (252) is provided on the side of the second shell (251), a guide wheel (253) and a second guide wheel (254) are provided inside the second shell (251), and a rope outlet hole (255) is provided inside the second shell (251).

6. The crane boom according to claim 5, characterized in that: The side surface of the C-shaped hook (323) is covered with a rubber sleeve (324), the top of the rubber sleeve (324) is integrally formed with a resistance-increasing strip, and the side surface of the C-shaped hook (323) is provided with a card slot (325).

7. The crane boom according to claim 6, characterized in that: A clamping block (322) is fixedly provided at the bottom of the support block (321), and the clamping block (322) matches the clamping slot (325).

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