Crane suspension arm anti-falling structure
By designing herringbone, arm frame and anti-fall system on the crane boom, the flexible protective wire rope is used to prevent the crane boom from falling, the problem of falling boom is solved and a safe and economical crane operation is achieved.
Patent Information
- Application Number
- CN202421235629.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the prior art, the gantry crane boom is prone to failure of the variability system due to external environment and internal factors during operation, causing the boom to fall from a high altitude position, causing safety accidents.
A crane boom anti-fall structure is designed, including herringbone, arm frame, web wire rope and anti-fall system. The flexible protection wire rope is used to prevent the use of the loose state and tension in an emergency to prevent the boom from falling.
It provides a method to prevent the crane boom from falling with a simple structure, convenient use and reliable performance, which improves the guarantee of safe operation of crane lifting, avoids welding deformation, meets installation and construction requirements, and improves installation quality.
Smart Images
Figure CN223060572U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of engineering machinery, and particularly relates to a structure and method for preventing the falling of a crane boom. Background Art
[0002] At present, portal cranes are often used in various lifting operations in ports, docks, and various lifting construction sites, and are particularly important in the field of lifting engineering technology. The boom is a key component of the luffing system of the portal crane.
[0003] However, during the operation of the portal crane, affected by various external environments, such as natural wind, rain, improper operation, and the effective cooperation of its internal mechanisms, the luffing system may sometimes malfunction, causing the boom to fall from a high altitude, resulting in safety accidents and losses of personnel, property, and materials.
[0004] Therefore, it is necessary to design a new solution to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a structure and method for preventing the falling of a crane boom, aiming to solve the technical problems in the prior art that it is difficult to quickly respond to the falling of the boom mechanically and prevent the boom from falling.
[0006] To achieve the above purpose, an embodiment of the utility model provides a structure for preventing the falling of a crane boom, including: a crane system, the crane system includes a guy derrick and a boom; a guy derrick top block and a guy derrick bottom block are respectively arranged at the top and bottom of the guy derrick; the boom is divided into a boom head and a boom bottom, and the boom bottom is rotatably connected to the guy derrick bottom block; a luffing wire rope is arranged between the guy derrick top block and the boom head; and a fall prevention system is arranged between the guy derrick and the boom for preventing the boom from falling.
[0007] Further, the fall prevention system includes: a guy derrick top sling arranged at the top of the guy derrick; a boom head sling arranged at the top of the boom; and a protection wire rope arranged between the guy derrick top sling and the boom head sling.
[0008] Further, the guy derrick top sling includes a top sling body, a top sling eye plate, and a top sling reinforcement panel. The top sling eye plate is located on one side of the top sling body, and the top sling reinforcement panel is located on the top sling eye plate; the boom head sling includes a head sling body and a head sling eye plate, and the protection wire rope is located between the top sling eye plate and the head sling eye plate.
[0009] Further, shackles are provided at both ends of the protected wire rope, and the protected wire rope is connected to the top ring of the derrick and the head ring of the boom through the shackles.
[0010] Further, the top ring of the derrick is fixedly welded to the top block of the derrick through a rigid structure, and the top ring of the derrick, the eye plate of the top ring, and the reinforcing panel of the top ring are all made of steel structure materials.
[0011] Further, the protected wire rope is made by stranding a plurality of steel wires.
[0012] Further, a plurality of support rods are provided inside the boom, and the plurality of support rods divide the inside of the boom into a plurality of triangular structures.
[0013] Further, a method for using the anti-falling structure of the crane boom includes:
[0014] S1. Traction is performed on the head of the boom through the luffing wire rope passing through the derrick, and the overall inclination angle of the boom can be changed;
[0015] S2. By pulling the luffing wire rope, the boom is rotated upward and approaches a vertical state. At this time, when the crane rotates, the lateral force arm of the overall boom is shorter, so the swing force received is smaller, and the steering stability can be improved;
[0016] S3. When a fall occurs, the protected wire rope in the anti-falling system becomes in a tensioned state, so as to quickly pull the boom, and the traction effect is used to prevent the boom from falling further, thereby completing the anti-falling protection.
[0017] One or more of the above technical solutions in the anti-falling structure and method of the crane boom provided by the embodiments of the present invention have at least the following technical effects: adopting the anti-falling flexible traction design technology, designing a structure and method with simple structure, convenient use, and reliable performance, providing a safe, economical and practical method for preventing the boom from accidentally falling, providing a favorable guarantee for the safe operation of the crane hoisting, and at the same time, this technology adopts the flexible traction form, avoiding a large number of structural forms, not easily generating welding deformation, easily meeting the installation construction requirements of the crane structure, improving the installation quality, and further achieving the effect of preventing falling, with a simple structural form, convenient operation, and convenient construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 It is the diagram of the boom luffing state change of the present utility model;
[0020] Figure 2 It is the diagram of the minimum luffing state of the boom of the present utility model;
[0021] Figure 3 It is the diagram of the maximum luffing state of the boom of the present utility model;
[0022] Figure 4 It is the layout diagram of the boom anti-falling system of the present utility model.
[0023] Figure 5 It is the top view of the boom anti-falling system of the present utility model.
[0024] Figure 6 It is the structural diagram of the boom anti-falling system of the present utility model.
[0025] Figure 7 It is the layout diagram of the top sling of the gin pole of the present utility model.
[0026] Figure 8 It is the layout diagram of the sling at the head of the boom of the present utility model.
[0027] Figure 9 It is the process schematic diagram of the present utility model.
[0028] Among them, each reference numeral in the figure: 100 - crane system; 110 - gin pole; 111 - top block of gin pole; 112 - bottom block of gin pole; 120 - boom; 121 - head of boom; 122 - bottom of boom; 200 - luffing wire rope; 300 - anti-falling system; 310 - top sling of gin pole; 311 - main body of top sling; 312 - eye plate of top sling; 313 - reinforcing panel of top sling; 320 - shackle; 330 - protection wire rope; 340 - sling at head of boom; 341 - main body of head sling; 342 - eye plate of head sling. Specific embodiments
[0029] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation of the present utility model.
[0030] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0032] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0033] In the present utility model, as Figures 1-8 shown, a crane boom anti-fall structure is provided, including: a crane system 100, the crane system 100 includes a derrick 110 and a boom 120; a derrick top block 111 and a derrick bottom block 112 are respectively provided at the top and bottom of the derrick 110; the boom 120 is divided into a boom head 121 and a boom bottom 122, and the boom bottom 122 is rotatably connected to the derrick bottom block 112; a luffing wire rope 200, the luffing wire rope 200 is arranged between the derrick top block 111 and the boom head 121; and an anti-fall system 300, the anti-fall system 300 is arranged between the derrick 110 and the boom 120 for preventing the boom 120 from falling; during use, the user can hoist an object through the boom 120 and traction the boom 120 through the luffing wire rope 200, so that the boom 120 can be lifted and the lateral force arm can be reduced to prevent the situation that the use of the boom 120 is unstable due to rotational swing.
[0034] Among them, the anti-drop system 300 includes: a boom top sling 310 provided at the top of the A-frame 110; a boom head sling 340 provided at the top of the boom 120; a protection steel wire rope 330 provided between the boom top sling 310 and the boom head sling 340; during use, the protection steel wire rope 330 will be in a slack state when the boom 120 rotates upward, and the slack state will not affect the use of the boom 120. During use, it can prevent the protection steel wire rope 330 from affecting the use of the device. During further operation, when the boom 120 drops, the protection steel wire rope 330 will be tightened. At this time, the protection steel wire rope 330 can be used as a traction to support and traction the boom 120 upward to prevent the boom 120 from falling and being damaged, improving the practicability of the device.
[0035] Among them, the boom top sling 310 includes a top sling body 311, a top sling eye plate 312 and a top sling reinforcement panel 313. The top sling eye plate 312 is located on one side of the top sling body 311, and the top sling reinforcement panel 313 is located on the top sling eye plate 312; the boom head sling 340 includes a head sling body 341 and a head sling eye plate 342, and the protection steel wire rope 330 is located between the top sling eye plate 312 and the head sling eye plate 342. During use, the top sling reinforcement panel 313, the top sling eye plate 312 and the head sling eye plate 342 are used to support the protection steel wire rope 330, which can prevent the connection at both ends of the protection steel wire rope 330 from being unstable and falling off, improving the practicability of the device.
[0036] Among them, shackles 320 are provided at both ends of the protection steel wire rope 330. The protection steel wire rope 330 is connected to the boom top sling 310 and the boom head sling 340 through the shackles 320. During use, the shackles 320 can be used to quickly install the protection steel wire rope 330. At the same time, by adjusting the shackles 320, the effective traction length of the protection steel wire rope 330 can be adjusted to adapt to booms 120 of different lengths for use.
[0037] Among them, the boom top sling 310 is fixedly welded to the A-frame top block 111 through a rigid structure, and the boom top sling 310, the top sling eye plate 312 and the top sling reinforcement panel 313 are all made of steel structure materials; the use of rigid welding fixation can improve the strength of the boom top sling 310, the top sling eye plate 312 and the top sling reinforcement panel 313, prevent the device from falling off and being damaged, and improve the practicability of the device.
[0038] Among them, the protective steel wire rope 330 is made by stranding multiple steel wires. During use, the protective steel wire rope 330 made by stranding steel wires can improve the overall strength of the protective steel wire rope 330, prevent the situation that the protective steel wire rope 330 is difficult to support the weight of the boom 120 and collapses, and improve the practicability of the device.
[0039] Among them, there are multiple support rods inside the boom 120, and the multiple support rods divide the inside of the boom 120 into multiple triangular structures. During use, the multiple support rods can divide the inside of the boom 120 into multiple more stable triangular structures, and by using this method, the overall strength of the boom 120 can be improved, and the situation that the boom 120 loosens or even collapses can be prevented.
[0040] Among them, as Figure 9 shown, the usage method of the anti-falling structure of the crane boom includes:
[0041] S1. The luffing wire rope 200 passes through the guy derrick 110 to traction the head 121 of the boom, and the overall inclination angle of the boom 120 can be changed;
[0042] S2. By traction the luffing wire rope 200 to make the boom 120 rotate upward and approach the vertical state. At this time, when the crane rotates, the overall lateral lever arm of the boom 120 is shorter, so the swing force received is smaller, and the steering stability can be improved;
[0043] S3. When a fall occurs, the protective steel wire rope 330 in the anti-falling system 300 becomes in a tensioned state, so as to quickly traction the boom 120, and use the traction effect to prevent the boom 120 from falling further, so as to complete the anti-falling protection.
[0044] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An anti-falling structure for a crane boom, characterized in that, Comprising: A crane system (100), the crane system (100) comprising a boom (110) and a jib (120); A top block (111) and a bottom block (112) of the boom (110) are respectively provided at the top and bottom of the boom (110); The jib (120) is divided into a head portion (121) and a bottom portion (122) of the jib, and the bottom portion (122) of the jib is rotatably connected to the bottom block (112) of the boom; A luffing wire rope (200), the luffing wire rope (200) being provided between the top block (111) of the boom and the head portion (121) of the jib; and An anti-fall system (300), the anti-fall system (300) being provided between the boom (110) and the jib (120) for preventing the jib (120) from falling.
2. The anti-falling structure of the crane boom according to claim 1, characterized in that, The anti-fall system (300) includes: A top boom sling (310) provided at the top of the boom (110); A head jib sling (340) provided at the top of the jib (120); A protection wire rope (330) provided between the top boom sling (310) and the head jib sling (340).
3. The anti-falling structure of the crane boom according to claim 2, wherein, The top boom sling (310) includes a top sling body (311), a top sling eye plate (312) and a top sling reinforcement panel (313), the top sling eye plate (312) is located on one side of the top sling body (311), and the top sling reinforcement panel (313) is located on the top sling eye plate (312); the head jib sling (340) includes a head sling body (341) and a head sling eye plate (342), and the protection wire rope (330) is located between the top sling eye plate (312) and the head sling eye plate (342).
4. The anti-falling structure of the crane boom according to claim 2, characterized in that, Shackles (320) are provided at both ends of the protection wire rope (330), and the protection wire rope (330) is connected to the top boom sling (310) and the head jib sling (340) through the shackles (320).
5. The anti-falling structure of the crane boom according to claim 2, characterized in that, The top boom sling (310) is fixedly welded to the top block (111) of the boom through a rigid structure, and the top boom sling (310), the top sling eye plate (312) and the top sling reinforcement panel (313) are all made of steel structure materials.
6. The anti-falling structure of the crane boom according to claim 2, wherein, The protection wire rope (330) is made by a stranding process of multiple wires.
7. The anti-falling structure of the crane boom according to claim 1, characterized in that, A plurality of support rods are provided inside the jib (120), and the plurality of support rods divide the interior of the jib (120) into a plurality of triangular structures.