A coil handling hook

Abstract

The utility model discloses a kind of steel coil travelling crane hooks, it is related to steel structure construction technology field, including hook body, the hook body is divided into two parts, the hook body lower part is the hooking part for facilitating hooking steel coil;The upper part of the hook body is inclined extension, the extension of the hook body upper end extends to the position above the gravity center of the hook body, the hook body upper end is connected with the lifting hook of travelling crane;Beneficial effect is that: the steel coil travelling crane hook of the utility model can make single person safely and quickly complete 10 tons inside C-shaped steel production line steel coil transfer, improve efficiency and reduce labor cost;L-shaped hooking part is attached to steel coil, edge and corner fillet reduces abrasion;Gravity center design, blocking angle and reinforcing rib guarantee hoisting balance and prevent from falling off and increase load bearing, structure simple installation, without reforming existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of steel structure construction technology, and in particular to a steel coil crane hook. Background Technology

[0002] In the steel structure processing field, the efficient operation of C-shaped steel production lines highly depends on the stable and rapid transfer of steel coils (steel strips). As a core raw material for production, steel coils need to be frequently transferred between the raw material area, the uncoiler, and the temporary storage station. Current industry designs for lifting devices used for steel coil transfer must simultaneously meet three core requirements: first, load-bearing capacity, adapting to the weight load of steel coils commonly used in C-shaped steel production lines up to 10 tons; second, protective performance, as scratches, indentations, or other damage to the surface of the steel coil caused by lifting will directly affect the subsequent forming accuracy and product appearance quality of the C-shaped steel; and third, ease of operation, balancing the compact working space of the workshop with an efficient production pace.

[0003] However, the current mainstream transportation method still mainly uses the combination of "traffic crane + steel wire rope", which has significant pain points in practical applications: 1. Low operating efficiency and high labor costs: Due to the high flexibility and difficulty in positioning of the wire rope, at least two operators are required to work together - one person controls the lifting and moving of the crane, and the other person on the ground adjusts the winding position of the wire rope on the steel coil to ensure the balance of force. The whole operation is cumbersome and the time taken for each hoisting is long, which makes it difficult to adapt to the continuous production needs of C-shaped steel production lines.

[0004] 2. High risk of damage to steel coils: The contact area between the wire rope and the steel coil is small, resulting in localized pressure concentration during hoisting. Furthermore, the wire rope is prone to friction and compression with the edge of the steel coil during lifting and translation. This is especially true for cold-rolled steel strips with high surface precision requirements, which can easily cause surface scratches and deformation, leading to raw material scrap or product downgrading and increasing production costs.

[0005] 3. Poor safety and stability: The wire rope has no dedicated limiting structure. If the winding angle is deviated or the center of gravity of the steel coil is shifted, the steel coil is prone to shaking or tilting during hoisting, and there is even a safety hazard of the wire rope slipping and causing the steel coil to fall. At the same time, the operator needs to adjust the wire rope at close range, which further increases the operation risk.

[0006] Based on the current industry situation and actual production pain points, a special gantry crane with high load-bearing capacity, low damage and easy operation is developed for C-shaped steel production line coil specifications (within 10 tons). This is a key requirement for improving production efficiency, reducing raw material loss and ensuring operational safety. Utility Model Content

[0007] The purpose of this utility model is to provide a steel coil crane hook in order to solve the above-mentioned problems.

[0008] This utility model achieves the above objectives through the following technical solutions: A steel coil gantry crane hook includes a hook body, which is divided into upper and lower parts. The lower part of the hook body is a hooking part for facilitating the hooking of steel coils. The upper part of the hook body is an upwardly extending part, the upper end of which extends to a position above the center of gravity of the hook body. The upper end of the hook body is connected to the hook of the gantry crane.

[0009] Preferably, the hook also includes a lifting ring and a rivet. A pin hole is provided at the upper end of the hook body corresponding to the position above the center of gravity of the hook. The lifting ring is rotatably connected to the hook body by inserting the rivet into the pin hole.

[0010] Preferably, the hook portion of the hook body is L-shaped.

[0011] Preferably, a reinforcing rib is provided on the side of the hook body at the corner position corresponding to the hook hook part.

[0012] Preferably, the lower end of the hook body is provided with a blocking angle to prevent the steel coil from unhooking.

[0013] Preferably, the corner of the hook part of the hook body is rounded.

[0014] Preferably, the lower edge of the hook portion of the hook body is rounded.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Compared with the traditional "crane + wire rope" mode that requires two people to operate together, this utility model optimizes the hook structure design so that a single person can safely and quickly complete the entire process of lifting and transferring steel coils. This reduces manpower input, shortens the time of a single lifting operation, effectively adapts to the continuous production rhythm of C-shaped steel production lines, and improves the overall production flow efficiency. 2. On the one hand, the hooking part at the bottom of the hook adopts an "L" shaped structure, which can fit the specifications of the hollow structure of the steel coil and achieve precise hooking; on the other hand, the corners and lower edges of the hooking part are rounded, so that the hook and the steel coil form an arc surface contact when they come into contact, avoiding the problems of local pressure concentration and friction caused by traditional wire ropes, such as scratches and indentations on the surface of the steel coil, reducing the risk of raw material scrapping or product downgrading, and ensuring the subsequent C-shaped steel forming accuracy and appearance quality; 3. Firstly, the upper end of the hook body extension extends to above the hook's center of gravity. Combined with the rotating connection structure between the lifting ring and the hook body, this ensures that the hook remains balanced during lifting, preventing the steel coil from tilting. Secondly, a blocking angle is provided at the upper part of the lower end of the hook body to prevent the steel coil from slipping off the hook body during lifting. At the same time, reinforcing ribs are added at the corners of the hook to enhance the hook body's crack resistance and load-bearing capacity. This design is suitable for the material coil transfer needs of all C-shaped steel production lines in the workshop with a capacity of up to 10 tons, completely avoiding the safety hazards of traditional wire ropes being indeterminate and prone to slippage. 4. This utility model consists only of core components such as hook body, lifting ring, and rivets. The lifting ring and hook body can be riveted together by the cooperation of rivets and pin holes, which is convenient for installation. The overall structure is designed for the specifications of C-shaped steel production line coils. There is no need to modify the existing overhead crane equipment. It can be put into use directly by hooking, which reduces the cost of equipment adaptation and modification and has strong practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a steel coil crane hook according to the present invention.

[0018] Figure 2 This is a schematic diagram of the main structure of the hook body of a steel coil crane according to the present invention.

[0019] Figure 3 This is a schematic diagram of the main structure of the reinforcing rib of the steel coil crane hook described in this utility model.

[0020] Figure 4 This is a front view structural schematic diagram of the lifting ring of a steel coil crane hook according to the present invention.

[0021] The annotations in the attached figures are explained as follows: 1. Hook body; 11. Hook hanging part; 12. Extension part; 2. Lifting ring; 3. Rivet; 4. Pin hole; 5. Reinforcing rib; 6. Blocking angle. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-4 As shown, a steel coil gantry crane hook includes a hook body 1, a lifting ring 2, and a rivet 3. The hook body 1 is divided into upper and lower parts. The lower part of the hook body 1 is a hooking part 11 for easy hooking of steel coils. The upper part of the hook body 1 is an upwardly extending part 12, the upper end of which extends to the position above the center of gravity of the hook body 1. The upper end of the hook body 1 is connected to the hook of the gantry crane. A pin hole 4 is opened at the upper end of the hook body 1 corresponding to the position above the center of gravity of the hook body 1. The lifting ring 2 is rotatably connected to the hook body 1 by inserting the rivet 3 into the pin hole 4, so as to ensure the balance of the hook during the lifting process. The hooking part 11 of the hook body 1 is L-shaped, which is convenient for hooking hollow steel coils.

[0025] The side of the hook body 1 is provided with a reinforcing rib 5 at the corner position of the hook part 11 and the corner position of the hook part 11 is rounded to increase the crack resistance of the hook body 1 at the bending position.

[0026] A blocking angle 6 is provided at the upper part of the lower end of the hook body 1 to prevent the steel coil from slipping off the hook during hoisting.

[0027] The lower edges of the hook part 11 of the hook body 1 are rounded, so that the contact surface of the hook body 1 with the steel coil when lifting the steel coil is an arc surface, reducing damage to the steel coil.

[0028] Working principle: During installation, the lifting ring 2 and hook body 1 are connected as a whole by riveting through the cooperation of rivets 3 and pin holes 4. Before use, simply hang the lifting ring 2 of the lifting device with the crane hook to start working. Reinforcing ribs are welded to the corresponding bending positions on both sides of the hook body 1. When using this hook for lifting, lower the hook through the hollow part in the middle of the steel coil. The lower edge of the hook body 1 is rounded, and the contact surface between the steel coil and the hook is close to reduce the damage to the steel coil during lifting. The hook blocking angle 6 should be completely extended from the other end of the steel coil to prevent the lifting tilt from affecting the lifting balance.

[0029] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A steel coil crane hook, characterized in that, Includes a hook body (1), which is divided into upper and lower parts. The lower part of the hook body (1) is a hooking part (11) for easy hooking of steel coils; the upper part of the hook body (1) is an upwardly extending part (12). The upper end of the extension part (12) of the hook body (1) extends to the position above the center of gravity of the hook body (1), and the upper end of the hook body (1) is connected to the hook of the gantry crane.

2. The steel coil crane hook according to claim 1, characterized in that: It also includes a lifting ring (2) and a rivet (3). A pin hole (4) is provided at the upper end of the hook body (1) corresponding to the position above the center of gravity of the hook body (1). The lifting ring (2) is connected to the hook body (1) by inserting the rivet (3) into the pin hole (4).

3. The steel coil crane hook according to claim 1, characterized in that: The hook part (11) of the hook body (1) is L-shaped.

4. A steel coil crane hook according to claim 3, characterized in that: The hook body (1) has a reinforcing rib (5) at the corner of the hook part (11) corresponding to the hook body (1).

5. A steel coil crane hook according to claim 3, characterized in that: The lower end of the hook (1) is provided with a blocking angle (6) to prevent the steel coil from unhooking.

6. A steel coil crane hook according to claim 3, characterized in that: The corner of the hook part (11) of the hook body (1) is rounded.

7. A steel coil crane hook according to claim 1, characterized in that: The lower edge of the hook part (11) of the hook body (1) is rounded.

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