Steel coil hoisting clamp for quay crane

Abstract

The utility model relates to the technical field of steel coil hoisting, in particular to a steel coil hoisting clamp for a quay crane, which comprises a hanging part, a hook handle, a cross beam, two clamping arms, a swing arm and a positioning plate, the cross beam is arranged below the hook handle, the two clamping arms are symmetrically arranged on the cross beam, and the clamping arms are in sliding connection with the cross beam; a hanging part is arranged at the top of the hook handle, a swing arm is hinged between the bottom of the hook handle and each clamping arm, the two positioning plates are correspondingly fixed to the two opposite sides of the hook handle, and the two ends of each positioning plate are connected with a quay crane hook head through steel wire ropes. The two positioning plates are arranged on the two sides of the hook handle, the two positioning plates are connected with the quay crane hook head through the four steel wire ropes, and the hook handle and the hanging part are positioned through the two positioning plates and the four steel wire ropes connected with the two positioning plates, so that the steel coil hoisting clamp for the quay crane is prevented from rotating in the steel coil hoisting process of the steel coil hoisting clamp for the quay crane; and the steel coil hoisting is more stable, the labor is saved, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel coil hoisting technology, specifically a steel coil hoisting clamp for quay cranes. Background Technology

[0002] Steel coils, also known as rolled steel, are steel products formed into coils through hot and cold pressing. These coils are used for convenient storage and transportation, and for various processing (such as processing into steel plates and strips). The main types of coils are hot-rolled coils and cold-rolled coils. Hot-rolled coils are processed products before the recrystallization of steel billets, while cold-rolled coils are a subsequent processing step of hot-rolled coils. When placing or unloading steel coils, lifting clamps need to be hung on the hooks of the quay cranes for hoisting and transporting. Currently, the existing lifting clamps tend to rotate back and forth with the hanging part during the hoisting process, leading to unstable steel coil transport. This requires workers to pull the lifting clamps to maintain their position, posing a safety hazard. Utility Model Content

[0003] The purpose of this invention is to provide a steel coil hoisting clamp for quay cranes to overcome the problems existing in the current equipment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a steel coil hoisting clamp for quay cranes, comprising a hoisting part, a hook handle, a crossbeam, clamping arms, swing arms, and positioning plates. The crossbeam is located below the hook handle, and two clamping arms are symmetrically arranged on the crossbeam, with the clamping arms slidably connected to the crossbeam. The top of the hook handle is provided with a hoisting part, and a swing arm is hinged between the bottom of the hook handle and each clamping arm. Two positioning plates are provided and correspondingly fixed on opposite sides of the hook handle, with both ends of each positioning plate connected to the quay crane hook head by steel wire ropes.

[0005] Based on the above technical solution, the present invention can be further improved as follows:

[0006] As a further improvement to the above technical solution, the two positioning plates are fixed to the opposite sides of the hook handle by welding. Each positioning plate has a lifting lug welded to both ends. The lifting lug is connected to one end of the wire rope, and the other end of the wire rope is connected to the hook head of the quay crane.

[0007] As a further improvement to the above technical solution, the suspension part is provided with a hook hole that cooperates with the hook of the quay crane, and the hook handle and the clamping arm are connected to swing arms on opposite sides.

[0008] As a further improvement to the above technical solution, the clamping arm includes an arm portion, a sliding portion located at the upper end of the arm portion, and a gripper located at the lower end of the arm portion. The sliding portion is sleeved on the crossbeam and can slide left and right along the crossbeam. The sliding portion is provided with a rectangular through hole for the crossbeam to pass through. The arm portion is perpendicular to the crossbeam, and the gripper is formed on the inner side of the lower end of the arm portion.

[0009] As a further improvement to the above technical solution, the upper end of the swing arm is hinged to the bottom of the hook handle by a pin, and the lower end of the swing arm is hinged to the sliding part of the clamping arm by a pin. A self-closing device is provided at the connection between the swing arm and the hook handle. The self-closing device is used to control the opening or clamping of the two swing arms.

[0010] As a further improvement to the above technical solution, a pressure plate is provided below the crossbeam, which is used to press against the surface of the steel coil during the hoisting process.

[0011] As a further improvement to the above technical solution, the bottom surface of the pressure plate has a supporting and positioning function, and the pressure plate is connected to the bottom of the crossbeam through a connecting plate.

[0012] As a further improvement to the above technical solution, a camera is installed at the connection point between the wire rope and the quay crane.

[0013] The beneficial effects of this utility model are as follows: by setting two positioning plates on both sides of the hook handle, and connecting the two positioning plates to the quay crane hook head through four steel wire ropes, the hook handle and the lifting part are positioned by the two positioning plates and the four steel wire ropes connected to the two positioning plates, preventing the quay crane steel coil lifting clamp from rotating during the lifting of the steel coil, making the steel coil lifting more stable, saving labor and improving safety. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the steel coil hoisting clamp for quay cranes provided in a preferred embodiment of this utility model;

[0016] Figure 2 yes Figure 1 Side view of the steel coil hoisting clamp for the quay crane;

[0017] In the diagram: 1. Hanging part; 11. Hook hole; 2. Hook handle; 3. Crossbeam; 31. Pressure plate; 311. Connecting plate; 4. Clamping arm; 41. Arm part; 42. Sliding part; 43. Gripper; 5. Swing arm; 51. Pin; 52. Self-closing device; 6. Positioning plate; 61. Lifting lug; 7. Wire rope; 8. Steel coil. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] 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., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, 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 indicated technical features. 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.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1 , Figure 2 As shown, a preferred embodiment of this utility model provides a steel coil hoisting clamp for a quay crane, including a hoisting part 1, a hook handle 2, a crossbeam 3, a clamping arm 4, a swing arm 5, and a positioning plate 6. The crossbeam 3 is located below the hook handle 2, and two clamping arms 4 are symmetrically arranged on the crossbeam 3. The clamping arms 4 are slidably connected to the crossbeam 3. The top of the hook handle 2 is provided with a hoisting part 1, and the bottom of the hook handle 2 is hinged to each clamping arm 4. Two positioning plates 6 are provided and are fixed to opposite sides of the hook handle 2. The two ends of each positioning plate 6 are connected to the quay crane hook head by steel wire ropes 7.

[0022] Each clamping arm 4 includes an arm portion 41, a sliding portion 42 located at the upper end of the arm portion 41, and a gripper 43 located at the lower end of the arm portion 41. The sliding portion 42 is sleeved on the crossbeam 3 and can slide left and right along the crossbeam 3. The sliding portion 42 is provided with a rectangular through hole through which the crossbeam 3 passes. The arm portion 41 is perpendicular to the crossbeam 3, and the gripper 43 is formed on the inner side of the lower end of the arm portion 41.

[0023] The suspension part 1 is provided with a hook hole 11 that mates with the hook of the quay crane. The hook handle 2 and the clamping arm 4 are connected to opposite sides by swing arms 5. The upper end of the swing arm 5 is hinged to the bottom of the hook handle 2 via a pin 51, and the lower end of the swing arm 5 is hinged to the sliding part 42 of the clamping arm 4 via a pin 51. A self-closing device 52 is provided at the connection between the swing arm 5 and the hook handle 2, which is used to control the opening or closing of the two swing arms 5.

[0024] A pressure plate 31 is provided below the crossbeam 3. The bottom surface of the pressure plate 31 has a positioning and support function. The pressure plate 31 is used to press against the surface of the steel coil 8 during the hoisting process. The pressure plate 31 is connected to the bottom of the crossbeam 3 through a connecting plate 311. The two clamping arms 4 cooperate with the pressure plate 31 to clamp the steel coil 8 more firmly, avoiding swaying that could cause displacement between the steel coil 8 and the hoisting jig for the quay crane. This makes the hoisting of the steel coil 8 more stable and improves safety.

[0025] Two positioning plates 6 are welded to opposite sides of the hook handle 2. The two positioning plates 6 are parallel to each other, and each positioning plate 6 has a lifting lug 61 welded to both ends. One end of the wire rope 7 is connected to the lifting lug 61, and the other end of the wire rope 7 is connected to the quay crane hook head. In this way, the hook handle 2 and the lifting part 1 can be positioned by the two positioning plates 6 and the four wire ropes 7 connected to the two positioning plates 6, preventing the quay crane steel coil lifting clamp from rotating during the lifting of the steel coil 8. Preferably, a camera can be installed at the connection between the quay crane and the wire rope 7 to monitor the usage status of the quay crane steel coil lifting clamp during the lifting of the steel coil 8.

[0026] In use, the lifting part 1 is suspended on the hook of the quay crane. The operator operates the quay crane to move the steel coil lifting clamp downward, so that the pressure plate 31 moves down to press against the surface of the steel coil 8. At the same time, the jaws 43 at the lower ends of the two clamping arms 4 are aligned with the through holes at both ends of the steel coil 8. Then, the operator operates the quay crane to move the steel coil lifting clamp upward, so that the hook handle 2 pulls the swing arm 5 upward. The self-closing device 52 controls the two swing arms 5 to clamp. The swing arm 5 drives the clamping arm 4 to move along the crossbeam 3 toward the steel coil 8 until the jaws 43 at the lower ends of the two clamping arms 4 extend into the through holes at both ends of the steel coil 8, thereby clamping the steel coil 8 between the two clamping arms 4, realizing the lifting of the steel coil 8 by the steel coil lifting clamp of the quay crane. By setting two positioning plates 6 on both sides of the hook handle 2, and connecting the two positioning plates 6 to the quay crane hook head through four steel wire ropes 7, the hook handle 2 and the hanging part 1 are positioned to prevent the quay crane steel coil lifting clamp from rotating during the lifting of the steel coil 8, making the lifting of the steel coil 8 more stable, saving labor and improving safety.

[0027] Any descriptions not covered in the above specific embodiments of this utility model belong to the well-known technology in the field, and can be implemented by referring to the well-known technology.

[0028] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A coil handling spreader for a shore-to-ship crane, characterized by: The device comprises a hanging part, a hook handle, a beam, clamping arms, swing arms and positioning plates, the beam is arranged below the hook handle, two clamping arms are symmetrically arranged on the beam and are slidably connected with the beam; the top of the hook handle is provided with the hanging part, a swing arm is hingedly connected between the bottom of the hook handle and each clamping arm, and two positioning plates are arranged on opposite sides of the hook handle and are fixed correspondingly, and each positioning plate is connected with the shore bridge hook head through a steel wire rope at both ends.

2. The steel coil handling clamp for a shore-to-ship loader as claimed in claim 1, characterized in that: The two positioning plates are fixed on opposite sides of the hook handle through welding connection, each positioning plate is provided with an ear at both ends through welding, the ear is connected with one end of the steel wire rope, and the other end of the steel wire rope is connected with the shore bridge hook head.

3. The steel coil handling clamp for a shore-to-ship loader as defined in claim 2, wherein: The hanging part is provided with a hook hole matched with the hook of the shore bridge, and the swing arms are connected with the opposite sides of the hook handle and the clamping arms.

4. The steel coil handling clamp for a shore-to-ship loader as defined in claim 3, wherein: The clamping arm comprises an arm part, a sliding part arranged at the upper end of the arm part and a clamping jaw arranged at the lower end of the arm part, the sliding part is sleeved on the beam and can slide left and right along the beam, the sliding part is provided with a rectangular through hole for the beam to pass through, the arm part is perpendicular to the beam, and the clamping jaw is formed on the inner side of the lower end of the arm part.

5. The steel coil handling clamp for a shore-to-ship loader as defined in claim 4, wherein: The upper end of the swing arm is hingedly connected with the bottom of the hook handle through a pin shaft, the lower end of the swing arm is hingedly connected with the sliding part of the clamping arm through a pin shaft, a self-closer is arranged at the connection between the swing arm and the hook handle, and the self-closer is used for controlling the opening or clamping of the two swing arms.

6. The steel coil handling clamp for a shore-to-ship loader as defined in claim 5, wherein: A pressing plate is arranged below the beam, and the pressing plate is used for pressing the surface of the steel coil during hoisting.

7. The steel coil handling clamp for a shore-to-ship loader as defined in claim 6, wherein: The bottom surface of the pressing plate has a supporting and positioning function, and the pressing plate is connected below the beam through a connecting plate.

8. The steel coil handling clamp for a shore-to-ship loader as defined in claim 7, wherein: A camera is arranged at the connection between the steel wire rope and the shore bridge.

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