Novel portal crane single-machine operation rope protection device

By designing a new type of gantry crane single-machine operation rope protection device, the problem of rope entanglement was solved by using guiding and limiting structures, thereby improving the safety and durability of the rope.

CN223852143UActive Publication Date: 2026-01-30JIANGSU GOODWILL HEAVY IND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520282218.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-30
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

When operating alone, existing gantry cranes experience rope entanglement due to turning and sudden start/stop, which affects their service life and poses safety hazards.

Method used

A novel cable protection device for single-machine operation of a gantry crane is designed, including a guiding device, a telescopic device, a reset device, and a locking device. The cable wear is reduced by the cooperation of the sliding groove and the sliding rod, and the cable is prevented from detaching from the pulley groove by the cooperation of the limiting hole and the limiting shaft.

Benefits of technology

This effectively prevents ropes from tangling, extends their service life, ensures safety, and prevents the cable from slipping out of the pulley groove.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223852143U_ABST
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Abstract

The utility model relates to the technical field of rope protection, in particular to a novel portal crane single-machine operation rope protection device which comprises a frame, a guide device arranged in the frame, a telescopic device arranged in the frame, a connecting plate arranged on one side of the telescopic device, and a reset device arranged on one side of the connecting plate. A mounting plate is arranged at the top of the reset device, a clamping device is arranged at the top of the mounting plate, a mounting box is arranged in the guide device, and sponge is arranged in the mounting box. According to the novel portal crane single-machine operation rope protection device, through cooperative use of a sliding groove and a sliding rod, the effect of facilitating sliding of a mounting block is achieved, through cooperative use of the mounting block, a connecting block and a connecting hole, the effect of facilitating rotation of a roller is achieved, through addition of the roller, the effect of facilitating sliding of a cable is achieved, and through cooperative use of a mounting box and sponge, the rope is protected; and the effect of conveniently adding the protective oil is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rope protection, in particular to a novel door machine single machine operation rope protection device. BACKGROUND

[0002] The portal crane is also called door machine, and is mostly operated along the ground or the track of the crane on the building to carry out the hoisting and unloading operation, and the portal crane with the door-shaped portal is called the semi-portal crane, and one side of the operation track of the semi-portal crane is arranged on the ground, and the other side is arranged on the building higher than the ground.

[0003] At present, when the existing door machine is operated, the turning, sudden starting and stopping of the door machine can cause the mutual entanglement of the steel wire ropes of the rear machine, which not only affects the service life of the ropes, but also has the safety hidden danger of being separated from the pulley groove, and therefore a novel door machine single machine operation rope protection device is needed to improve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a novel door machine single machine operation rope protection device to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides a novel door machine single machine operation rope protection device, which comprises a frame, a guide device is arranged in the inside of the frame, an extension device is arranged in the inside of the frame, a connecting plate is arranged on one side of the extension device, a reset device is arranged on one side of the connecting plate, an installation plate is arranged on the top of the reset device, a clamping device is arranged on the top of the installation plate, an installation box is arranged in the inside of the guide device, and a sponge is arranged in the inside of the installation box.

[0007] Preferably, the guide device comprises a sliding rod and a sliding groove, an installation block is arranged on one side of the sliding rod, a connecting block is arranged in the inside of the installation block, a connecting hole is formed in the inside of the connecting block, a roller is arranged in the inside of the connecting hole, the sliding rod is fixedly connected to the inside of the frame, the sliding groove is formed on the outside of the installation block, the roller is rotatably connected to the inside of the connecting hole, and the installation box is fixedly connected to the inside of the installation block.

[0008] Through the above technical scheme, the roller is rotatably connected to the inside of the connecting hole, which reduces the abrasion of the cable.

[0009] Preferably, the telescopic device comprises a cavity and a mounting cavity, a limiting block and a synchronous electric push rod are arranged in the cavity, a support rod is arranged on the output shaft of the synchronous electric push rod, a limiting groove is formed on the outer side of the support rod, the support rod is slidably connected to the inside of the cavity, the mounting cavity is formed in the inside of the support rod, and the output of the synchronous electric push rod is connected to the inside of the mounting cavity.

[0010] By adopting the above technical scheme, the output shaft of the synchronous electric push rod is provided with the support rod, so that the support rod is conveniently driven to slide.

[0011] Preferably, the reset device comprises a limiting hole and an arc-shaped groove, a limiting shaft is arranged in the inside of the limiting hole, a connecting shaft is arranged in the inside of the arc-shaped groove, a connecting frame is arranged on the outer side of the connecting shaft, a reset spring is arranged on one side of the connecting frame, a mounting frame is arranged on one side of the reset spring, a mounting shaft is arranged in the inside of the mounting frame, the limiting hole and the arc-shaped groove are both formed in the inside of the mounting plate, and the connecting shaft and the limiting shaft are both fixedly connected to one side of the support rod.

[0012] By adopting the above technical scheme, the inside of the mounting frame is provided with the mounting shaft, so that the mounting shaft is limited.

[0013] Preferably, the clamping device comprises an L-shaped plate, a triangular plate is arranged on one side of the L-shaped plate, a through hole is formed in the inside of the L-shaped plate, a threaded rod is arranged in the inside of the through hole, a nut is arranged on the outer side of the threaded rod, a fixed plate is arranged at the bottom of the threaded rod, the L-shaped plate is fixedly connected to the top of the mounting plate, the fixed plate is slidably connected to one side of the L-shaped plate, and the threaded rod is slidably connected to the inside of the through hole.

[0014] By adopting the above technical scheme, the outer side of the threaded rod is provided with the nut, so that the fixed plate is conveniently pushed to move.

[0015] In summary, the beneficial technical effects of the utility model are as follows:

[0016] 1. The novel door machine single machine operation rope protection device, through the cooperation of the sliding groove and the sliding rod, the effect of conveniently sliding the mounting block is achieved, through the cooperation of the mounting block, the connecting block and the connecting hole, the effect of conveniently rotating the roller is achieved, through the addition of the roller, the effect of conveniently sliding the cable is achieved, through the cooperation of the mounting box and the sponge, the effect of conveniently adding protection oil is achieved, through the use of the structure, the mutual entanglement of the steel wires can be effectively avoided, and the service life of the rope is prolonged.

[0017] 2. The new type of door machine single machine operation rope protection device, through the cooperation of limiting hole and limiting shaft, plays the role of facilitating the rotation of supporting rod, through the cooperation of arc-shaped groove and connecting shaft, plays the role of limiting, through the cooperation of adding connecting shaft and installing shaft, plays the role of limiting, through the cooperation of mounting frame, connecting frame and reset spring, plays the role of facilitating the reset of supporting rod, through the use of the above structure, the supporting rod can rotate with the cable, thereby avoiding the cable from separating from the pulley groove.

[0018] The additional aspects and advantages of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is a structural schematic view of the present application;

[0021] Figure 2 is a structural schematic view of the guiding device of the present application;

[0022] Figure 3 is a structural schematic view of the telescopic device of the present application;

[0023] Figure 4 is a structural schematic view of the reset device of the present application;

[0024] Figure 5 is a structural schematic view of the clamping device of the present application.

[0025] In the figure: 1, frame; 2, guiding device; 3, telescopic device; 4, connecting plate; 5, reset device; 6, mounting plate; 7, clamping device; 8, mounting box; 9, sponge; 10, sliding rod; 11, sliding groove; 12, mounting block; 13, connecting block; 14, connecting hole; 15, roller; 16, cavity; 17, mounting cavity; 18, limiting block; 19, synchronous electric push rod; 20, supporting rod; 21, limiting groove; 22, limiting hole; 23, arc-shaped groove; 24, limiting shaft; 25, connecting shaft; 26, connecting frame; 27, reset spring; 28, mounting frame; 29, mounting shaft; 30, L plate; 31, triangular plate; 32, through hole; 33, threaded rod; 34, nut; 35, fixed plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] Embodiment one

[0028] With reference to Figure 1 The utility model discloses a novel door machine single machine operation rope protection device, including frame 1, the inside of frame 1 is provided with guiding device 2, the inside of frame 1 is provided with telescopic device 3, one side of telescopic device 3 is provided with connecting plate 4, one side of connecting plate 4 is provided with reset device 5, the top of reset device 5 is provided with mounting plate 6, the top of mounting plate 6 is provided with clamping device 7, the inside of guiding device 2 is provided with installation box 8, the inside of installation box 8 is provided with sponge 9, frame 1 plays the role of limiting in this embodiment, connecting plate 4 plays the role of transmission, installation box 8 plays the role of facilitating the installation of sponge 9.

[0029] With reference to Figure 2 Guiding device 2 includes slide 10 and slide groove 11, one side of slide 10 is provided with mounting block 12, the inside of mounting block 12 is provided with connecting block 13, connecting hole 14 is seted up in the inside of connecting block 13, the inside of connecting hole 14 is provided with roller 15, slide 10 is fixedly connected in the inside of frame 1, slide groove 11 is seted up in the outside of mounting block 12, roller 15 is rotatably connected in the inside of connecting hole 14, installation box 8 is fixedly connected in the inside of mounting block 12, in this embodiment, slide 10 plays the role of limiting, slide groove 11 plays the role of positioning, and roller 15 plays the role of reducing cable wear and tear.

[0030] With reference to Figure 3 And Figure 4 Telescopic device 3 includes cavity 16 and installation cavity 17, the inside of cavity 16 is provided with limiting block 18 and synchronous electric push rod 19, the output shaft of synchronous electric push rod 19 is provided with support rod 20, limiting slot 21 is seted up in the outside of support rod 20, support rod 20 is slidably connected in the inside of cavity 16, installation cavity 17 is seted up in the inside of support rod 20, the output of synchronous electric push rod 19 is connected in the inside of installation cavity 17, in this embodiment, cavity 16 plays the role of facilitating the sliding of support rod 20, synchronous electric push rod 19 plays the role of facilitating the sliding of support rod 20, and installation cavity 20 plays the role of facilitating the connection of synchronous electric push rod 19.

[0031] With reference to Figure 4The reset device 5 comprises a limiting hole 22 and an arc-shaped slot 23, the inside of the limiting hole 22 is provided with a limiting shaft 24, the inside of the arc-shaped slot 23 is provided with a connecting shaft 25, the outside of the connecting shaft 25 is provided with a connecting frame 26, one side of the connecting frame 26 is provided with a reset spring 27, one side of the reset spring 27 is provided with a mounting frame 28, the inside of the mounting frame 28 is provided with a mounting shaft 29, the limiting hole 22 and the arc-shaped slot 23 are both arranged in the inside of the mounting plate 6, the connecting shaft 25 and the limiting shaft 24 are both fixedly connected to one side of the supporting rod 20, in the embodiment, the limiting hole 22 plays a role of facilitating the rotation of the limiting shaft 24, the arc-shaped slot 23 plays a role of facilitating the sliding of the connecting shaft 25, and the reset spring 27 plays a role of facilitating the reset of the mounting plate 6.

[0032] With reference to Figure 1 And Figure 5 The clamping device 7 comprises an L-shaped plate 30, one side of the L-shaped plate 30 is provided with a triangular plate 31, the inside of the L-shaped plate 30 is provided with a through hole 32, the inside of the through hole 32 is provided with a threaded rod 33, the outside of the threaded rod 33 is provided with a nut 34, the bottom of the threaded rod 33 is provided with a fixed plate 35, the L-shaped plate 30 is fixedly connected to the top of the mounting plate 6, the fixed plate 35 is slidingly connected to one side of the L-shaped plate 30, and the threaded rod 33 is slidingly connected to the inside of the through hole 32, in the embodiment, the L-shaped plate 30 plays a role of limiting, the through hole 32 plays a role of facilitating the sliding of the threaded rod 33, and the fixed plate 35 plays a role of clamping the door machine.

[0033] The implementation principle of the embodiment is as follows:

[0034] When facing different types of door machines, the output shaft of the synchronous electric push rod 19 starts to extend outward and pushes the supporting rod 20 to move, when the supporting rod 20 slides in the inside of the cavity 16, the distance between the two L-shaped plates 30 will change, until the L-shaped plates 30 can be clamped on the outside of the door machine supporting arm, then a tool is used to drive the nut 34 to rotate, by using the nut 34 in cooperation with the threaded rod 33, the fixed plate 35 can be pushed to move downward, by using the mounting plate 6 in cooperation with the fixed plate 35, the device can be fixed at the bottom of the door machine supporting arm;

[0035] Before using the door machine, the cable provided with the door machine is sequentially threaded through the mounting block 12, after the cable is threaded through the mounting block 12, the cable will be attached to the outside of the roller 15, and at the same time of lifting and lowering, the cable will slide in the inside of the mounting box 8, at the same time, the sponge 9 will be attached to the outer surface of the cable, at this time, the sponge 9 has sufficient protective oil stored in the inside, which can help to maintain the cable during the working process, thereby prolonging the service life, at the same time, the roller 15 will slide in the inside of the connecting hole 14, using the roller 15 instead of the original right-angle side can effectively reduce the abrasion of the cable during use;

[0036] In the process of door machine rotating, the cable will inevitably sway, while the cable sways, the limiting shaft 24 will rotate inside the limiting hole 22, the connecting shaft 25 will slide inside the arc-shaped slot 23, the connecting frame 26 rotates outside the connecting shaft 25, and the mounting frame 28 rotates outside the mounting shaft 29, at this time, the reset spring 27 will be deformed, so as to drive the connecting frame 26 to move, so as to reset the cable, thereby preventing the cable from being separated from the pulley.

[0037] The embodiments of the specific embodiment are the preferred embodiments of the utility model, not limited to the protection scope of the utility model, so: all equivalent changes made according to the structure, shape, principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A novel rope protection device for a single machine operation of a gantry crane, characterized in that: The utility model provides a kind of frame (1), the inside of the frame (1) is provided with guiding device (2), the inside of the frame (1) is provided with telescopic device (3), one side of the telescopic device (3) is provided with connecting plate (4), one side of the connecting plate (4) is provided with reset device (5), the top of the reset device (5) is provided with mounting plate (6), the top of the mounting plate (6) is provided with clamping device (7), the inside of the guiding device (2) is provided with installation box (8), the inside of the installation box (8) is provided with sponge (9).

2. A new type of door machine single machine operation rope protection device according to claim 1, characterized in that: The guiding device (2) includes a slide rod (10) and a slide groove (11), the slide rod (10) is provided with a mounting block (12) on one side, the mounting block (12) is provided with a connecting block (13) inside, the connecting block (13) is provided with a connecting hole (14) inside, the connecting hole (14) is provided with a roller (15) inside, the slide rod (10) is fixedly connected to the inside of the frame (1), the slide groove (11) is provided on the outside of the mounting block (12), the roller (15) is rotatably connected to the inside of the connecting hole (14), and the installation box (8) is fixedly connected to the inside of the mounting block (12).

3. A new type of door machine single machine operation rope protection device according to claim 1, characterized in that: The telescopic device (3) includes a cavity (16) and a mounting cavity (17), the cavity (16) is provided with a limiting block (18) and a synchronous electric push rod (19) inside, the output shaft of the synchronous electric push rod (19) is provided with a support rod (20), the outer side of the support rod (20) is provided with a limiting groove (21), the support rod (20) is slidably connected to the inside of the cavity (16), the mounting cavity (17) is provided in the inside of the support rod (20), and the output of the synchronous electric push rod (19) is connected to the inside of the mounting cavity (17).

4. A new type of door machine single machine operation rope protection device according to claim 1, characterized in that: The reset device (5) includes a limiting hole (22) and an arc-shaped groove (23), the limiting hole (22) is provided with a limiting shaft (24) inside, the arc-shaped groove (23) is provided with a connecting shaft (25) inside, the connecting shaft (25) is provided with a connecting frame (26) on the outer side, the connecting frame (26) is provided with a reset spring (27) on one side, the reset spring (27) is provided with a mounting frame (28) on one side, the mounting frame (28) is provided with a mounting shaft (29) inside, the limiting hole (22) and the arc-shaped groove (23) are provided in the inside of the mounting plate (6), and the connecting shaft (25) and the limiting shaft (24) are fixedly connected to one side of the support rod (20).

5. A new type of door machine single machine operation rope protection device according to claim 1, characterized in that: The clamping device (7) includes an L plate (30), the L plate (30) is provided with a triangular plate (31) on one side, the L plate (30) is provided with a through hole (32) inside, the through hole (32) is provided with a threaded rod (33) inside, the threaded rod (33) is provided with a nut (34) on the outer side, the threaded rod (33) is provided with a fixed plate (35) at the bottom, the L plate (30) is fixedly connected to the top of the mounting plate (6), the fixed plate (35) is slidably connected to one side of the L plate (30), and the threaded rod (33) is slidably connected to the inside of the through hole (32).