Electromagnetic chuck crown block coupler head anti-rotation device and crown block
By setting a limiting mechanism on the fixed frame, the problem of cable damage caused by hook rotation is avoided.
Patent Information
- Application Number
- CN202520929674.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-05-13
AI Technical Summary
In the existing technology, electromagnetic chuck crane hooks cause problems such as cable damage and sparking when rotating and pulling the cable during use.
By setting a fixing bracket on the motherboard and setting a limiting mechanism on the motherboard, the rotation of the hook head is controlled to prevent the cable from being damaged due to the rotation of the hook head.
It enables control of the fixing frame and limiting mechanism of the electromagnetic chuck, preventing cable damage caused by hook rotation and eliminating cable damage.
Smart Images
Figure CN224279473U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of overhead crane technology, and in particular to an anti-rotation device for an electromagnetic chuck overhead crane hook and an overhead crane. Background Technology
[0002] Steel mills frequently use overhead cranes to hoist detachable electromagnetic chucks to transport slabs or steel. The crane hook head typically rotates 360 degrees within its frame to adjust the operating angle. However, when hooking an electromagnetic chuck, the hook head cannot rotate freely because it requires an additional cable for power supply. Otherwise, rotation could pull on the cable, causing damage such as cable sheathing, sparking, or even injury. Furthermore, rotation of the crane hook head often makes the load held by the chuck difficult to control, posing safety hazards and resulting in the loss of spare parts.
[0003] In summary, it is necessary to address the issue of the rotating hook of the electromagnetic chuck crane to ensure personal and property safety and reduce the frequency of equipment spare parts damage. Utility Model Content
[0004] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, in a first aspect of this disclosure, an anti-rotation device for an electromagnetic chuck crane hook head is provided, characterized in that it includes a fixing frame and a limiting mechanism, wherein the fixing frame is disposed on the crane hook head frame, and the limiting mechanism is disposed on the fixing frame, wherein...
[0006] The limiting mechanism includes a main board body and a limiting part. The main board body is connected to the fixing frame, and the limiting part is disposed on the main board body. The limiting member includes a driving member and a limiting member. The limiting member is used to abut against the hook head column, and the driving member is used to apply the force of the limiting member abutting against the hook head column.
[0007] In one feasible implementation, the fixing frame includes a first frame, a second frame, and a connector. The first frame and the second frame are respectively disposed on both sides of the overhead crane hook frame, and one side of the first frame and the second frame are connected by the connector, while the opposite side is connected by the main board. The connector and / or the main board are used to adjust the distance between the first frame and the second frame.
[0008] In one feasible implementation, the main board body is configured as a rectangular plate, and the plate surface of the main board body facing the hook column body is provided with a limiting part mounting position.
[0009] In one feasible implementation, the limiting part is configured as an electric telescopic rod, the limiting part is disposed at the limiting part mounting position, and the output end of the limiting part faces the hook head column.
[0010] In one feasible implementation, the end of the electric telescopic rod that abuts against the hook head column is configured as a minor arc shape, and the minor arc shape extends circumferentially along the hook head column.
[0011] In one feasible implementation, the limiting member is configured as a bolt post, the driving member is configured as a nut, the main body is provided with a threaded hole, the nut is disposed at one end of the bolt post, and the other end of the bolt post is screwed into the threaded hole and abuts against the hook post body.
[0012] In one feasible implementation, an anti-slip pad is provided at the end of the bolt post that abuts against the hook post body.
[0013] In one feasible implementation, the limiting part is provided with a floating abutment part, the floating abutment part includes an abutment plate and a connecting frame, the connecting frame is connected to the end of the limiting part facing the hook column, the abutment plate and the connecting frame rotate to form a rocker structure, and the abutment plate is used to abut against the hook column.
[0014] In one feasible implementation, the position where the abutment plate is rotatably connected to the connecting frame is located at the center of the extended length of the abutment plate.
[0015] A second aspect of this disclosure provides a crane including the aforementioned electromagnetic chuck crane hook anti-rotation device.
[0016] Compared with the prior art, this disclosure has at least the following beneficial effects: The fixing frame of this disclosure is a main frame connected to the hook head frame of the crane. After the connection, a radial force is applied to the hook head column by the limiting part on the main body abutting against the hook head column, thereby controlling the degree of hook head rotation, avoiding the problem of large rotation of the hook head when hooking the electromagnetic chuck to lift steel, which would cause inconvenience in loading and unloading, and eliminating the possibility of the electromagnetic chuck cable being pulled. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0020] Figure 1 This is one of the top view structural schematic diagrams of this disclosure;
[0021] Figure 2 This is the second top view structural diagram of this disclosure;
[0022] Figure 3 This is a front view structural diagram of the present disclosure;
[0023] Figure 4 This is a schematic diagram of the floating abutment part disclosed in this paper.
[0024] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:
[0025] 100 - Overhead crane hook frame; 200 - Hook column;
[0026] 1-Fixed frame; 11-First frame; 12-Second frame; 13-Connector; 2-Limiting mechanism; 21-Main board; 22-Limiting part; 221-Driver; 222-Limiting part; 4-Abutting plate; 5-Connecting frame. Detailed Implementation
[0027] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0028] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.
[0029] Currently, steel mills frequently use overhead cranes to hoist detachable electromagnetic chucks to transport slabs or steel. The crane hook head typically rotates 360 degrees within its frame to adjust the operating angle. However, when hooking the electromagnetic chuck, the hook head cannot rotate freely because it requires an additional cable for power supply. Otherwise, rotation could cause cable damage, such as tearing, detachment, sparking, or even injury. Furthermore, the rotation of the crane hook head often makes the load held by the chuck difficult to control, posing safety hazards and increasing the risk of spare parts damage. Therefore, it is necessary to address the issue of electromagnetic chuck hook head rotation to ensure personal and property safety and reduce the frequency of equipment spare parts damage.
[0030] Based on this, the present disclosure provides an anti-rotation device for the hook head of an electromagnetic chuck crane. The fixing frame of the present disclosure is a main frame connected to the hook head frame of the crane. After connection, a radial force is applied to the hook head column by the limiting part on the main body abutting against the hook head column, thereby controlling the degree of rotation of the hook head, avoiding the problem of large rotation of the hook head when hooking the electromagnetic chuck to lift steel, which would cause inconvenience in loading and unloading, and eliminating the possibility of the electromagnetic chuck cable being pulled.
[0031] The following detailed description uses specific embodiments to illustrate the anti-rotation device for the electromagnetic chuck crane hook:
[0032] Reference Figures 1 to 4 As shown, the first aspect of this disclosure provides an anti-rotation device for an electromagnetic chuck crane hook, including a fixed frame 1 and a limiting mechanism 2. The fixed frame 1 is disposed on the crane hook frame 100, and the limiting mechanism 2 is disposed on the fixed frame 1. The limiting mechanism 2 includes a main body 21 and a limiting part 22. The main body 21 is connected to the fixed frame 1, and the limiting part 22 is disposed on the main body 21. The limiting part 22 includes a driving member 221 and a limiting member 222. The limiting member 222 is used to abut against the hook column 200, and the driving member 221 is used to apply a force to the limiting member 222 abutting against the hook column 200. The crane hook of this disclosure includes a hook column 100 and a hook. The hook column 100 is a cylinder, and it and the hook can be an integrally formed casting or a separate spliced structure.
[0033] The fixing frame 1 of this disclosure is a main frame connected to the crane hook head frame 100. After connection, a radial force is applied to the hook head column 200 by the limiting part 22 on the main board 21 abutting against it. This friction with the hook head column 200 controls the rotation force of the hook head, preventing significant rotation of the hook head when hooking the electromagnetic chuck to lift steel, thus avoiding difficulties in loading and unloading, and eliminating the possibility of the electromagnetic chuck cable being pulled. Specifically, the fixing frame 1 of this disclosure is intended to connect with the crane hook head frame 100 to support the limiting mechanism 2. Its form can be a bracket or connecting plate installed on the crane hook head frame 100. After the fixing member 1 is connected to the crane hook head frame 100, it can at least align the limiting mechanism 2 with the hook head column 100. The limiting mechanism 2 of this disclosure can be an automated drive mechanism or a manual mechanical drive. For example, the drive member 221 is set as a drive motor, and the limiting member 222 is set as a telescopic rod, achieving automated control through electric drive. For example, the limiting member 222 can be set as a bolt set screw, and the driving member 221 can be set as a knob or crank, operated manually by the operator. It should be noted that the limiting part 22 of this disclosure is intended to limit the crane hook head from rotating or from large-scale rotation under a certain range of rotational force, not to completely prevent the crane hook head from rotating. For example, when other components apply external force to the hook head to make it rotate passively, the limiting part 22 can effectively limit its rotation, but the hook head itself can still rotate actively. That is, the limiting part 22 is a contact limiting rather than an embedding or snap-fit limiting method. The maximum force applied by the driving member 221 to the limiting member 222 against the hook head column 200 is preferably such that the hook head column 200 is not deflected. When the driving member 221 drives the limiting member 222 to disengage from the hook head column 200, the applied abutment force is 0, which is the minimum abutment force.
[0034] In some embodiments, the fixing frame 1 includes a first frame 11, a second frame 12, and a connector 13. The first frame 11 and the second frame 12 are respectively disposed on both sides of the overhead crane hook frame 100, and one side of the first frame 11 and the second frame 12 are connected by the connector 13, and the other side is connected by the main board 21. The connector 13 and / or the main board 21 are used to adjust the distance between the first frame 11 and the second frame 12.
[0035] In this embodiment, the first frame 11 and the second frame 12 are clamped onto the crane hook frame 100 to achieve quick assembly and disassembly and easy maintenance. The first frame 11 and the second frame 12 are connected on one side by a connector 13, and on the opposite side by a main plate 21. This allows adjustment of the distance between the first frame 11 and the second frame 12 to accommodate crane hook frames 100 of various sizes, increasing the adaptability of this disclosure. Specifically, the connector 13 can be configured as a screw bolted to the first frame 11 and the second frame 12, or it can be configured as a telescopic rod. Bolt posts can be provided at both ends of the main plate 21 to be screwed onto the first frame 11 and the second frame 12, and adjustment is achieved by adjusting the amount of screwing in the bolt posts.
[0036] In some embodiments, the main board body 21 is configured as a rectangular plate, and the main board body 21 has a limiting part 22 mounting position on the plate surface facing the hook column 200.
[0037] In this embodiment, the main board body 21 has a mounting position for the limiting part 22 facing the hook column body 200, so as to facilitate the assembly of the limiting part 22.
[0038] In some embodiments, the limiting part 22 is configured as an electrically telescopic rod, the limiting part 22 is disposed at the limiting part 22 mounting position, and the output end of the limiting part 22 faces the hook head column 200. In this embodiment, the limiting part 22 is configured as an electrically telescopic rod to facilitate automated operation.
[0039] In some embodiments, the end of the electric telescopic rod that abuts against the hook head column 200 is configured as a minor arc shape, which extends circumferentially along the hook head column 200.
[0040] In this embodiment, the end of the electric telescopic rod that abuts against the hook head column 200 is set to a minor arc shape, thereby increasing the contact area between the electric telescopic rod and the hook head column 200. The minor arc shape can also accommodate hook head columns 200 of more sizes.
[0041] In some embodiments, the limiting part 22 includes a bolt post and a screw cap. The main body 21 is provided with a threaded hole, the screw cap is provided at one end of the bolt post, and the other end of the bolt post is screwed into the threaded hole to abut against the hook post 200.
[0042] In this embodiment, the limiting member 222 is configured as a bolt post, the driving member 221 is configured as a swivel cap, and the main body 21 is provided with a threaded hole. The swivel cap is located at one end of the bolt post, and the other end of the bolt post is screwed into the threaded hole to abut against the hook head column 200, thereby realizing manual mechanical control and reducing the failure rate. Furthermore, an anti-slip pad is provided at the end of the bolt post that abuts against the hook head column 200, thereby increasing the friction between the limiting member 222 and the hook head column 200 and further improving the control capability of the hook head rotation.
[0043] In some embodiments, the limiting part is provided with a floating abutment part, which includes an abutment plate 4 and a connecting frame 5. The connecting frame 5 is connected to the end of the limiting part facing the hook column 200. The abutment plate 4 and the connecting frame 5 are rotatably connected to form a rocker structure. The abutment plate 4 is used to abut against the hook column 200.
[0044] In this embodiment, in the usage scenario of this disclosure, the hook column 200 can be configured as a frustum-shaped column. The side wall of the hook column 200 that is abutted may be configured as a slope running from top to bottom or bottom to top. To meet various usage scenarios, the abutting plate 4 and the connecting frame 5 are rotatably connected to form a rocker structure. The rotatable connection can be configured as a pivot connection, hinge, or other methods. The aim is that when the driving component applies force to the abutting plate 4, the abutting plate 4 can rotate to fit against the slope of the hook column 200, thereby increasing the contact area between the abutting plate 4 and the hook column 200. Furthermore, the position where the abutting plate 4 and the connecting frame 5 are rotatably connected is set at the center of the extended length of the abutting plate 4, that is, dividing the abutting plate into two equal parts along the length direction of the abutting plate 4, to balance the contact angle between the abutting plate 4 and the hook column 200.
[0045] A second aspect of this disclosure provides a crane, including the electromagnetic chuck crane hook anti-rotation device provided in the first aspect of this disclosure.
[0046] In this disclosure, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0047] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or unit 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 disclosure.
[0048] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0049] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. An anti-rotation device for the hook head of an electromagnetic chuck crane, characterized in that, The system includes a fixing frame and a limiting mechanism. The fixing frame is mounted on the crane hook frame, and the limiting mechanism is mounted on the fixing frame. The limiting mechanism includes a main board body and a limiting part. The main board body is connected to the fixing frame, and the limiting part is disposed on the main board body. The limiting member includes a driving member and a limiting member. The limiting member is used to abut against the hook head column, and the driving member is used to apply the force of the limiting member abutting against the hook head column.
2. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 1, characterized in that, The fixing frame includes a first frame, a second frame, and a connector. The first frame and the second frame are respectively disposed on both sides of the overhead crane hook frame. The first frame and the second frame are connected on one side through the connector, and the opposite side is connected through the main board. The connector and / or the main board are used to adjust the distance between the first frame and the second frame.
3. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 1, characterized in that, The main board is configured as a rectangular plate, and a limiting part mounting position is provided on the surface of the main board facing the hook column.
4. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 3, characterized in that, The limiting part is configured as an electric telescopic rod, the limiting part is located at the limiting part mounting position, and the output end of the limiting part faces the hook head column.
5. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 4, characterized in that, The end of the electric telescopic rod that abuts against the hook head column is configured as a minor arc shape, which extends circumferentially along the hook head column.
6. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 1, characterized in that, The limiting component is a bolt post, the driving component is a nut, the main body is provided with a threaded hole, the nut is provided at one end of the bolt post, and the other end of the bolt post is screwed into the threaded hole and abuts against the hook post.
7. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 1, characterized in that, An anti-slip pad is provided at the end of the bolt column that abuts against the hook column body.
8. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 1, characterized in that, The limiting part is provided with a floating abutment part, which includes an abutment plate and a connecting frame. The connecting frame is connected to the end of the limiting part facing the hook column. The abutment plate and the connecting frame rotate to form a rocker structure. The abutment plate is used to abut against the hook column.
9. The anti-rotation device for the electromagnetic chuck crane hook head according to claim 1, characterized in that, The abutment plate is rotatably connected to the connecting frame at the center of the extended length of the abutment plate.
10. An overhead crane, characterized in that, The electromagnetic chuck crane hook anti-rotation device includes any one of claims 1 to 9.