Bridge crane steel wire rope replacing device

Abstract

The utility model relates to a bridge crane steel wire rope replacing device and belongs to the technical field of bridge cranes. The bridge crane steel wire rope replacing device comprises a supporting base and a rotating mechanism arranged on the supporting base. The rotating mechanism comprises a rotating disc rotationally installed on the top of the supporting base, a thrust bearing arranged at the bottom of the rotating disc and a brake assembly used for limiting rotation of the rotating disc. The device has the effect of reducing potential safety hazards caused by stall of the winding drum when the steel wire rope is replaced.

Description

Technical Field

[0001] This application relates to the field of bridge crane technology, and in particular to a bridge crane wire rope replacement device. Background Technology

[0002] Bridge cranes are the core equipment for loading and unloading operations at modern port container terminals. They are used to efficiently and safely lift containers between ships and the dock, serving as the "main force" of automated and intelligent ports.

[0003] In gantry crane systems, the wire rope is the core component of the hoisting mechanism. It transmits power from the electric motor to the spreader via a winch system, enabling the vertical lifting and lowering of containers. Wire ropes need to be replaced after a period of use due to wear. Currently, wire rope replacement involves a crane lifting a drum containing the wire rope, connecting one end of the rope to the hoisting mechanism, and then the hoisting mechanism pulls the rope, causing the drum to rotate synchronously. However, the wire rope has a large overall mass and inertia, making it prone to stalling during drum rotation, posing a significant safety hazard. Utility Model Content

[0004] To reduce the risk of drum stalling during wire rope replacement, this application provides a wire rope replacement device for bridge cranes.

[0005] The bridge crane wire rope replacement device provided in this application adopts the following technical solution:

[0006] A bridge crane wire rope replacement device includes a support base and a rotating mechanism disposed on the support base. The rotating mechanism includes a rotating disk rotatably mounted on the top of the support base, a thrust bearing disposed at the bottom of the rotating disk, and a braking component for limiting the rotation of the rotating disk.

[0007] By adopting the above technical solution, the support base provides a stable foundation for the entire device, and the rotating disk achieves smooth rotation through the thrust bearing, effectively reducing friction and wear and extending the service life of the device. The braking assembly can precisely limit the rotation of the rotating disk, preventing stalling during wire rope replacement, thereby improving operational safety and reliability.

[0008] Optionally, the support base is provided with a support ring for mounting the thrust bearing, and the shaft ring of the thrust bearing abuts against the rotating disk.

[0009] By adopting the above technical solution, a support ring is installed on the support base to mount the thrust bearing, and the shaft ring of the thrust bearing abuts against the rotating disk, which effectively improves the stability of the rotating disk during rotation. The installation of the thrust bearing significantly reduces the friction between the rotating disk and the support base, allowing the rotating disk to rotate more smoothly when carrying the wire rope drum, avoiding stalling due to inertia, thereby improving the safety during wire rope replacement.

[0010] Optionally, the bottom of the rotating disk is provided with a rotating part that inserts into the support ring.

[0011] By adopting the above technical solution, the rotating part is inserted into the support ring, which improves the stability of the rotating disk on the support base, making the rotating disk more stable during rotation.

[0012] Optionally, the top of the rotating disk is provided with an annular mounting groove, and the rotating disk is provided with an anti-slip rubber pad in the annular mounting groove.

[0013] By adopting the above technical solution, an annular mounting groove is opened on the top of the rotating disk, and an anti-slip rubber pad is installed in it. This effectively increases the friction between the rotating disk and the drum placed on it, preventing operational instability caused by the drum slipping during wire rope replacement. This reduces the safety hazards caused by slippage.

[0014] Optionally, the braking assembly includes a brake support disposed on the support base, a rotating block rotatably mounted on the brake support, a brake pad for abutting against the rotating disk, and a linkage mechanism connecting the brake pad and the rotating block, driving the rotating block to rotate, causing the brake pad to move upward and abut against the bottom of the rotating disk.

[0015] By adopting the above technical solution, the structural composition of the braking assembly is specifically disclosed. The brake support provides a stable rotation support point for the rotating block. The rotating block is connected to the brake pad through a linkage mechanism. When the rotating block rotates, the linkage mechanism drives the brake pad to move upward and closely abut against the bottom of the rotating disk, thereby achieving the braking effect on the rotating disk. The overall structure is simple and easy to assemble.

[0016] Optionally, the rotating block is provided with an extension rod for rotation, the support base is provided with a guide groove corresponding to the extension rod, and the side wall of the support base is equipped with a drive rod for insertion and engagement with the extension rod.

[0017] By adopting the above technical solution, the plug-in connection between the drive rod and the extension rod simplifies the driving method, facilitates the direct action of the external power device on the rotating block, and improves the operating efficiency and reliability of the braking assembly.

[0018] Optionally, the linkage mechanism includes a first rotating rod connected to the rotating block, a second rotating rod hinged to the first rotating rod, a vertical slider connected to the second rotating rod, and a limiting rod for limiting the vertical slider, wherein the brake pad is disposed on the limiting rod.

[0019] By adopting the above technical solution, the linkage mechanism converts the rotational motion of the rotating block into the linear motion of the vertical slider, so that the brake pad can accurately abut against the bottom of the rotating disk, thereby achieving effective braking of the rotating disk.

[0020] Optionally, each of the four corners of the side wall of the support base is provided with a lifting ring, and the support base is provided with an insertion groove for a forklift to insert into.

[0021] By adopting the above technical solution, lifting rings are installed at the four corners of the side wall of the support base, which facilitates the overall hoisting of the bridge crane wire rope replacement device using lifting equipment, thereby improving the handling efficiency and flexibility of the device. The support base is equipped with insertion grooves for forklifts, enabling the device to be adapted for forklift operation, further improving the convenience of the device during ground transportation and reducing manual handling costs.

[0022] Optionally, a plurality of positioning clips and locking elements for locking the positioning clips are slidably mounted on the top of the rotating disk, the positioning clips being slidably mounted along the axis of the rotating disk.

[0023] By adopting the above technical solution, the positioning clamp is slidably installed along the axis of the rotating disk and locked by the locking component. This design allows the positioning clamp to be flexibly adjusted according to the size of the wire rope drum, thereby adapting to wire rope drums of different specifications and improving the versatility of the device. The adjustability and locking function of the positioning clamp ensure the stability of the wire rope during the replacement process.

[0024] Optionally, the positioning clamp is provided with a radial slider, the top of the rotating disk is provided with a radial groove that cooperates with the radial slider, the radial groove is provided with a locking screw hole, the radial slider is provided with a strip hole corresponding to the locking screw hole, and the locking member is provided in the strip hole, the locking member and the locking screw hole are threaded together.

[0025] By adopting the above technical solution, the positioning clamp can be made to slide stably on the rotating disk, which improves the adjustment accuracy and reliability of the device. The threaded design of the locking screw hole, the strip hole and the locking part ensures that the positioning clamp can be firmly locked after being adjusted to the appropriate position, thus preventing displacement during the replacement of the wire rope.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up a support base and a rotating mechanism, wherein the rotating mechanism includes a rotating disk, a thrust bearing and a braking assembly, the inertial stall problem during the drum rotation process can be effectively controlled, thereby improving the safety of the wire rope replacement process;

[0028] 2. The braking assembly can limit the rotation of the rotating disc, ensuring the stability of the drum's movement when changing wire ropes, avoiding stalling due to inertia, and thus reducing safety hazards;

[0029] 3. By setting up positioning clips, this application can flexibly adjust the position according to the size of the wire rope drum, thereby adapting to wire rope drums of different specifications and improving the versatility of the device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is a schematic cross-sectional view of an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of the positioning clip structure in an embodiment of this application.

[0033] Figure 4 This is a schematic diagram of the braking assembly according to an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Support base; 11. Lifting ring; 12. Insertion groove; 13. Support ring; 14. Guide groove; 15. Mounting plate; 2. Rotating mechanism; 21. Rotating disk; 211. Rotating part; 212. Annular mounting groove; 213. Radial slide groove; 214. Locking screw hole; 22. Thrust bearing; 23. Braking assembly; 231. Braking support; 232. Rotating block; 233. Brake pad; 234. Linkage mechanism; 2341. First rotating rod; 2342. Second rotating rod; 2343. Vertical slider; 2344. Limiting rod; 2345. Spring component; 235. Extension rod; 236. Drive rod; 24. Anti-slip rubber pad; 25. Positioning clamp; 251. Arc-shaped piece; 252. Radial slider; 2521. Strip hole; 26. Locking component. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] This application discloses a bridge crane wire rope replacement device.

[0037] Reference Figure 1 A bridge crane wire rope replacement device includes a support base 1 for arranging drums and a rotating mechanism 2 disposed on the support base 1.

[0038] The support base 1 is a rectangular frame, and each of its four side walls is equipped with a lifting ring 11, on which a lifting rope is installed. The bottom of the support base 1 has an insertion groove 12, which creates a gap between the support base 1 and the ground for a forklift fork to insert. The lifting rings 11 and the insertion groove 12 allow the support base 1 to accommodate both forklift and lifting equipment, making it easier to move the drum.

[0039] Reference Figure 2 The rotating mechanism 2 includes a rotating disk 21 rotatably mounted on a support base 1, a thrust bearing 22 disposed on the rotating disk 21, and a braking assembly 23 that restricts the rotation of the rotating disk 21. A support ring 13 for mounting the thrust bearing 22 is fixedly mounted on the support base 1. In this embodiment, the thrust bearing 22 is a one-way thrust bearing 22, and the inner wall of the support ring 13 is adapted to the outer wall of the seat ring of the thrust bearing 22. The depth of the support ring 13 in the height direction is greater than the width of the thrust bearing 22, so that an installation gap is formed between the top plate of the support ring 13 and the top of the shaft ring of the thrust bearing 22. A rotating part 211 is provided at the bottom of the rotating disk 21, which is inserted into the installation gap. The rotating part 211 abuts against the thrust bearing 22. When the lifting mechanism pulls the wire rope of the drum, the drum and the thrust bearing 22 rotate synchronously, improving the replacement efficiency of the wire rope.

[0040] The top of the rotating disk 21 has multiple sets of annular mounting grooves 212, which are concentrically arranged and whose axes are coaxial with the axis of the rotating disk 21. Anti-slip rubber pads 24 are fixed within the annular mounting grooves 212 of the rotating disk 21. The anti-slip rubber pads 24 are embedded in the annular mounting grooves 212, and their tops are flush with the top surface of the rotating disk 21. The anti-slip rubber pads 24 increase the friction between the rotating disk 21 and the drum, reducing the probability of drum slippage and ensuring the stability of the synchronous rotation of the drum and the rotating mechanism 2.

[0041] Reference Figure 3 In other embodiments, to further improve the positioning effect on the drum, a plurality of positioning clamps 25 and locking members 26 for locking the positioning clamps 25 are slidably mounted on the top of the rotary disk 21. The plurality of positioning clamps 25 are evenly spaced circumferentially along the axis of the rotary disk 21.

[0042] The positioning clamp 25 slides along the radial direction of the rotating disk 21, and includes an arc-shaped piece 251 for abutting against the side wall of the drum and a radial slider 252 disposed at the bottom of the arc-shaped piece 251. The top of the rotating disk 21 has a radial groove 213 that slides and engages with the radial slider 252.

[0043] The bottom wall of the radial slide groove 213 is provided with a locking screw hole 214, and the radial slider 252 is provided with a strip hole 2521 that penetrates both end faces along its sliding direction. The locking member 26 is disposed in the strip hole 2521 of the radial slider 252. In this embodiment, the locking member 26 is a bolt, and the locking member 26 and the locking screw hole 214 are threaded together.

[0044] Reference Figure 3 and Figure 4 The braking assembly 23 includes a brake support 231 disposed on the support base 1, a rotating block 232 rotatably mounted on the brake support 231, a brake pad 233 for abutting against the rotating disk 21, and a linkage mechanism 234 connecting the brake pad 233 and the rotating block 232. An extension rod 235 for rotation is also fixedly mounted on the side wall of the rotating block 232, and the extension rod 235 and the linkage mechanism 234 are located on opposite sides of the rotating block 232.

[0045] The support base 1 has a guide groove 14 corresponding to the extension rod 235, and a drive rod 236 for interlocking with the extension rod 235 is installed on the side wall of the support base 1. The drive rod 236 increases the operator's rotation torque, making it easier and less strenuous to drive the rotating block 232.

[0046] The linkage mechanism 234 includes a first rotating rod 2341 connected to the rotating block 232, a second rotating rod 2342 hinged to the first rotating rod 2341, a vertical slider 2343 hinged to the second rotating rod 2342, and a limiting rod 2344 for limiting the vertical slider 2343. A brake pad 233 is fixed to the top of the vertical slider 2343, and the brake pad 233 is a prior art low-metal or ceramic brake pad. A mounting plate 15 for mounting the vertical slider 2343 is provided inside the support base 1. The bottom of the vertical slider 2343 has a limiting sleeve fitted onto the vertical slider 2343, and a spring 2345 is provided between the bottom of the limiting sleeve and the mounting plate 15 to achieve the reset of the vertical slider 2343.

[0047] The implementation principle of the bridge crane wire rope replacement device in this application embodiment is as follows: the drum with the wire rope wound on it is placed on the rotating disk 21, and the positioning clamp 25 is adjusted so that the inner arc surface of the positioning clamp 25 is close to the side wall of the drum. When the lifting mechanism of the bridge crane pulls the wire rope, the rotating disk 21 and the drum rotate synchronously. When it is necessary to stop the replacement, the drive rod 236 is inserted into the guide groove 14 and the extension rod 235 is engaged. Then, the extension rod 235 is rotated downward by hand or foot, so that the brake pad 233 moves upward and abuts against the rotating disk 21, driving the rotating disk 21 to stop rotating.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bridge crane wire rope replacement device, characterized in that, It includes a support base (1) and a rotating mechanism (2) disposed on the support base (1). The rotating mechanism (2) includes a rotating disk (21) rotatably mounted on the top of the support base (1), a thrust bearing (22) disposed on the bottom of the rotating disk (21), and a braking assembly (23) for limiting the rotation of the rotating disk (21).

2. The bridge crane wire rope replacement device according to claim 1, characterized in that, The support base (1) is provided with a support ring (13) for mounting the thrust bearing (22), and the shaft ring of the thrust bearing (22) abuts against the rotating disk (21).

3. The bridge crane wire rope replacement device according to claim 2, characterized in that, The bottom of the rotating disk (21) is provided with a rotating part (211) that is inserted into the rotating disk (21).

4. The bridge crane wire rope replacement device according to claim 1, characterized in that, The top of the rotating disk (21) is provided with an annular mounting groove (212), and the rotating disk (21) is provided with an anti-slip rubber pad (24) in the annular mounting groove (212).

5. The bridge crane wire rope replacement device according to claim 1, characterized in that, The braking assembly (23) includes a brake support (231) disposed on the support base (1), a rotating block (232) rotatably mounted on the brake support (231), a brake pad (233) for abutting against the rotating disk (21), and a linkage mechanism (234) connecting the brake pad (233) and the rotating block (232), which drives the rotating block (232) to rotate, so that the brake pad (233) moves upward and abuts against the bottom of the rotating disk (21).

6. A bridge crane wire rope replacement device according to claim 5, characterized in that, The rotating block (232) is provided with an extension rod (235) for rotation, and the support base (1) is provided with a guide groove (14) corresponding to the extension rod (235). The side wall of the support base (1) is provided with a drive rod (236) for insertion and cooperation with the extension rod (235).

7. A bridge crane wire rope replacement device according to claim 5, characterized in that, The linkage mechanism (234) includes a first rotating rod (2341) connected to the rotating block (232), a second rotating rod (2342) hinged to the first rotating rod (2341), a vertical slider (2343) connected to the second rotating rod (2342), and a limiting rod (2344) for limiting the vertical slider (2343), and the brake pad (233) is disposed on the limiting rod (2344).

8. A bridge crane wire rope replacement device according to claim 1, characterized in that, The support base (1) is provided with lifting rings (11) at the four corners of its side wall, and the support base (1) is provided with insertion grooves (12) for forklifts to insert into.

9. A bridge crane wire rope replacement device according to claim 1, characterized in that, Multiple sets of positioning clips (25) and locking members (26) for locking the positioning clips (25) are slidably mounted on the top of the rotating disk (21), and the positioning clips (25) are slidably mounted along the axis of the rotating disk (21).

10. A bridge crane wire rope replacement device according to claim 9, characterized in that, The positioning clip (25) is provided with a radial slider (252), and the top of the rotating disk (21) is provided with a radial groove (213) that cooperates with the radial slider (252). A locking screw hole (214) is provided on the radial groove (213), and the radial slider (252) is provided with a strip hole (2521) corresponding to the locking screw hole (214). The locking member (26) is provided in the strip hole (2521), and the locking member (26) and the locking screw hole (214) are threadedly engaged.

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