Gantry hook
By setting a guide block outside the hook tip of the gantry hook, the problems of inconvenient and unreliable gantry hooks in the prior art are solved, and the fast and reliable hanging of the ladle is achieved, and the safety is improved.
Patent Information
- Application Number
- CN202422291768.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-20
AI Technical Summary
When lifting molten metal ladles, the hook is inconvenient to adjust, resulting in unreliable hanging of the ladles and easily causing safety accidents.
A gantry hook is designed, and the outer side of the plate hook hook tip is provided with a guide block protruding outward. The top side of the guide block smoothly transitions with the outer side of the plate hook hook tip, and gradually decreases from the inside to the outside, which is used to assist the ladle trunnions to enter the hanging position.
Through the design of the guide block, the ladle is quickly hung, which reduces the operator's skill requirements and effectively prevents damage to the plate hook and hook tip.
Smart Images
Figure CN222989555U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safe hanging and taking, in particular to a gantry hook. Background Art
[0002] The gantry hook is a device that must be used for hoisting molten metal ladles and is widely used in the metallurgical industry. High efficiency and reliability are required for the hook in its key processes.
[0003] However, the existing gantry hooks for hoisting molten metal ladles, such as Figure 1 、 2 shown, are composed of a cross beam, a moving pulley block, a lifting fork, and a plate hook. However, the outer side of the top of the hook tip of the existing plate hook has a straight section structure with a certain distance. In actual working conditions, the operator often needs to adjust the positions of the crane's trolley and bridge many times to achieve the hanging and taking of the ladle. In extremely rare cases, there are even serious safety accidents such as the ladle slipping due to unreliable hanging and taking.
[0004] Therefore, we have designed a gantry hook that can quickly and reliably hang and take the ladle. Content of the Utility Model
[0005] In order to overcome the deficiencies in the background art, the utility model discloses a gantry hook.
[0006] To achieve the above-mentioned invention purpose, the utility model adopts the following technical solutions:
[0007] A gantry hook includes a cross beam. Moving pulley groups extending upward and lifting forks extending downward are provided at both ends of the cross beam. A plate hook is rotatably connected to the bottom of the lifting fork. A guiding block protruding outward is provided on the outer side of the hook tip of the plate hook, and the top side of the guiding block is smoothly transitioned with the outer side of the hook tip of the plate hook, and the height of the top side of the guiding block gradually decreases from inside to outside.
[0008] Preferably, the top of the lifting fork is rotatably connected to the cross beam through a lifting fork shaft, and the lifting fork shaft penetrates through the end of the cross beam from front to back.
[0009] Preferably, the upper end of the hook handle of the plate hook is rotatably connected to the lifting fork through a plate hook shaft, and the plate hook shaft penetrates through the bottom of the lifting fork from left to right.
[0010] Preferably, a heat insulation plate is provided at the bottom of the cross beam corresponding to the position between the two lifting forks.
[0011] Preferably, there is a gap between the top surface of the heat insulation plate and the bottom surface of the cross beam.
[0012] Preferably, an embedding groove is provided in the middle of the outer side of the hook tip of the plate hook along its width direction. The inner side of the guiding block has an embedding part embedded into the embedding groove, and the embedding part is connected to the outer side part of the hook tip of the plate hook through a bolt.
[0013] Preferably, a groove is provided in the middle of the inner side wall of the hook cavity of the plate hook.
[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:
[0015] 1. Due to the arrangement of the guiding block, during the process of hanging and taking the ladle, when the trunnion of the ladle contacts the top side of the guiding block, the hook tip of the plate hook can be lowered relative to the trunnion of the ladle through the characteristic that the height of the top side of the guiding block gradually decreases from inside to outside, so that the trunnion of the ladle enters the hanging and taking position of the plate hook through the hook door of the plate hook, realizing the function of quick hanging and taking, and at the same time, the skill requirements for the operator can be effectively reduced.
[0016] 2. Due to the arrangement of the guiding block, when there is a collision with the ladle hanging frame, due to the outward protruding design of the guiding block, the guiding block can replace the hook tip of the plate hook, so that the damage to the hook tip of the plate hook can be effectively prevented. Description of the Drawings
[0017] Figure 1 is the front view of the prior art;
[0018] Figure 2 is the right view of the prior art;
[0019] Figure 3 is the front view of the present utility model;
[0020] Figure 4 is the right view of the present utility model.
[0021] In the figure: 1, cross beam; 2, movable pulley block; 3, lifting fork; 4, plate hook; 5, guiding block; 51, embedding part; 6, lifting fork shaft; 7, plate hook shaft; 8, heat insulation plate. Detailed Embodiment
[0022] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they are only corresponding to the drawings of the present application for the convenience of describing the present utility model; it should be understood that if there are terms such as "end", "side", "end part", "side part", "transverse", "longitudinal", etc. indicating the orientation or positional relationship, they are only corresponding to the length and width of the corresponding components, that is, the "end part" indicates the head and tail areas in the length direction of the corresponding component, and the "side part" indicates the head and tail areas in the width direction of the corresponding component; it is for the convenience of describing the present utility model rather than indicating or implying that the device or element referred to must have a specific orientation.
[0023] Embodiment 1, in combination with the attached Figure 3-4, A gantry hook, comprising a cross beam 1, with movable pulley blocks 2 extending upwardly provided at both ends of the cross beam 1 for installation on a crane; as required, two movable pulley blocks 2 can be provided at each end of the cross beam 1 to prevent the occurrence of a fall caused by the fracture of the axle of one of the movable pulley blocks 2; as required, the two movable pulley blocks 2 can be arranged staggered left and right, front and back, or up and down; at both ends of the cross beam 1, there are fork hooks 3 extending downwardly, and a plate hook 4 is rotatably connected to the bottom of the fork hook 3; as required, the upper end of the hook handle of the plate hook 4 is rotatably connected to the fork hook 3 through a plate hook shaft 7, and the plate hook shaft 7 penetrates through the bottom of the fork hook 3 from left to right. As required, the two plate hooks 4 are symmetrically arranged about the center of the cross beam 1 to ensure the stability of the lifting of the two plate hooks 4.
[0024] As required, the plate hook 4 adopts a concave plate hook, that is, a groove is provided in the middle of the inner side wall of the hook cavity of the plate hook 4, so that the bottom of the convex ring of the ladle trunnion body can be embedded into the groove to prevent the ladle trunnion from axially shifting relative to the plate hook 4 and prevent the occurrence of the ladle trunnion from unhooking.
[0025] On the outer side of the hook tip of the plate hook 4, there is a guide block 5 protruding outward, and the top side of the guide block 5 is smoothly transitioned with the outer side of the hook tip of the plate hook 4, and the height of the top side of the guide block 5 gradually decreases from inside to outside.
[0026] As required, the shape of the plate hook 4 can be triangular or approximately triangular, the inner side of the plate hook 4 is correspondingly fitted with the outer side of the hook tip of the plate hook 4, and the angles corresponding to the top side and the bottom side of the plate hook 4 are rounded corners.
[0027] With such a setting, when hanging and taking the ladle, when the ladle trunnion contacts the top side of the guide block 5, due to the characteristic that the height of the top side of the guide block 5 gradually decreases from inside to outside, the hook tip of the plate hook 4 can be lowered relative to the ladle trunnion, and then the ladle trunnion can enter the hanging position of the plate hook 4 through the hook door of the plate hook 4.
[0028] When there is a collision with the ladle hanger, due to the outward protruding setting of the guide block 5, the guide block 5 can replace the hook tip of the plate hook 4, so that the damage of the hook tip of the plate hook 4 can be effectively prevented.
[0029] As required, the guide block 5 is installed on the plate hook 4 in a detachable manner, so that when the guide block 5 is damaged, the guide block 5 can be replaced alone.
[0030] Furthermore, in the middle of the outer side of the hook tip of the plate hook 4 along its width direction, there is an embedding groove, and the inner side of the guide block 5 has an embedding part 51 embedded into the embedding groove, and the embedding part 51 is connected to the outer side part of the hook tip of the plate hook 4 through a bolt.
[0031] As required, the top of the lifting fork 3 can be fixedly installed at the end of the cross beam 1, or it can also be rotatably connected to the cross beam 1 through the lifting fork shaft 6; when installed through the lifting fork shaft 6, the lifting fork shaft 6 penetrates through the end of the cross beam 1 from front to back. At this time, by rotating the lifting fork 3, the distance between the two plate hooks 4 can be adaptively increased.
[0032] Embodiment 2. In combination with the attached Figure 3-4 , a gantry hook. On the basis of Embodiment 1, in order to ensure the structural stability of the cross beam 1, a heat insulation plate 8 is provided at the bottom of the cross beam 1 corresponding to the position between the two lifting forks 3;
[0033] Furthermore, there is a gap between the top surface of the heat insulation plate 8 and the bottom surface of the cross beam 1; as required, the heat insulation plate 8 can be installed on the bottom surface of the cross beam 1 by means of bolts or suspension rods.
[0034] The parts not detailed in the present utility model are the prior art. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, aiming to include all changes falling within the meaning and scope of the equivalent elements in the present utility model.
Claims
1. A gantry hook, comprising a crossbeam (1), wherein both ends of the crossbeam (1) are provided with a movable pulley block (2) extending upward and a hanging fork (3) extending downward, wherein the bottom of the hanging fork (3) is rotatably connected to a plate hook (4), characterized in that: A guide block (5) protruding outward is provided on the outer side of the hook tip of the plate hook (4), and the top side of the guide block (5) smoothly transitions to the outer side of the hook tip of the plate hook (4), and the top side of the guide block (5) gradually decreases in height from the inside to the outside.
2. A gantry hook according to claim 1, characterized in that: The top of the lifting fork (3) is rotatably connected to the crossbeam (1) via a lifting fork shaft (6), and the lifting fork shaft (6) penetrates the end of the crossbeam (1) from front to back.
3. A gantry hook according to claim 1, characterized in that: The upper end of the hook handle of the plate hook (4) is rotatably connected to the lifting fork (3) via a plate hook shaft (7), and the plate hook shaft (7) passes through the bottom of the lifting fork (3) from left to right.
4. A gantry hook according to claim 1, characterized in that: A heat insulation board (8) is provided at the bottom of the crossbeam (1) at a position corresponding to the position between the two suspension forks (3).
5. A gantry hook according to claim 4, characterized in that: There is a gap between the top surface of the heat insulation board (8) and the bottom surface of the crossbeam (1).
6. A gantry hook according to claim 1, characterized in that: An embedding groove is provided at the middle of the outer side of the hook tip of the plate hook (4) along its width direction, and an embedding portion (51) is embedded in the inner side of the guide block (5) and is connected to the outer side of the hook tip of the plate hook (4) via a bolt.
7. A gantry hook according to claim 1, characterized in that: A groove is provided in the middle of the inner side wall of the hook cavity of the plate hook (4).