Protective device for drum cable of bridge crane

By installing channel steel and flat idler rollers at the cable inlet and outlet of the bottom plate of the bridge crane drum, the problem of cable wear was solved, the frequency of failures and maintenance costs were reduced, and the equipment efficiency was improved.

CN223836983UActive Publication Date: 2026-01-27GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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Patent Information

Application Number
CN202520623423.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-27
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Wear between the cable reel of a bridge crane and the bottom plate of the reel at the inlet and outlet points leads to insulation damage and grounding faults, increasing the frequency of equipment failures and maintenance costs.

Method used

Four channel steels and four flat rollers are installed at the inlet and outlet of the drum bottom plate. The two ends of the flat rollers are rotatably mounted on the channel steels. The gap between two adjacent flat rollers is less than 5mm. Trunnion pressure plates are set to protect the cable.

Benefits of technology

It reduces wear on cables and drum base plates, decreases equipment failures and maintenance frequency, lowers operating costs, and increases equipment productivity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective device for a bridge crane drum cable, which comprises four channel steels respectively arranged at four corners of a wire inlet and a wire outlet of a drum bottom plate; the four flat carrier rollers are respectively arranged on four edges of the wire inlet and outlet of the winding drum bottom plate; wherein the two ends of the flat carrier roller are rotatably and correspondingly mounted on the channel steel respectively.
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Description

Technical Field

[0001] This utility model relates to the technical field of protective equipment for the inlet and outlet of the bottom plate of a crane drum cable, and particularly to a protective device for a bridge crane drum cable. Background Technology

[0002] Bridge cranes are essential tools and equipment for achieving mechanization and automation in modern industrial production and lifting transportation. Therefore, bridge cranes are widely used in indoor and outdoor industrial and mining enterprises, steel and chemical plants, railway transportation, ports and docks, and logistics hubs. Depending on the specific application requirements, some bridge cranes are equipped with cable reels on the trolley. These cables can be fitted with various material handling suction cups, clamps, etc., along with the crane hook. During the frequent lifting and lowering of the crane, the cable swings irregularly with the hook, often causing wear against the cable inlet and outlet of the drum base plate, resulting in insulation damage and grounding failures. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a protective device for the cable reel of a bridge crane.

[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0005] A protective device for a bridge crane reel cable, comprising:

[0006] Four channel steels are respectively set at the four corners of the inlet and outlet of the drum bottom plate;

[0007] Four flat support rollers are respectively set on the four edges of the inlet and outlet of the drum bottom plate;

[0008] The flat idler rollers are rotatably mounted on the channel steel at both ends.

[0009] The gap between two adjacent flat rollers should be less than 5mm to avoid damaging the cable due to excessive gap.

[0010] Both ends of the flat roller are equipped with trunnion pressure plates.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model solves the problem of wear between the cable reel and the inlet / outlet of the bottom plate of the bridge crane, thereby reducing equipment failure, reducing maintenance frequency, reducing the operating cost of the crane, and increasing equipment productivity.

[0013] 2. This utility model is simple to manufacture, lightweight and reliable, and its parts are easy to repair and replace. Relying on the rotation effect of the flat roller, it effectively improves the problem of cable rubbing against the trolley floor plate, reduces the cost of frequent cable reel replacements, and decreases maintenance frequency. This invention is simple to manufacture, time-saving, labor-saving, economical, and applicable; it can also be applied to the protection of cable reels on other bridge cranes. Attached Figure Description

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0017] like Figure 1 As shown, a protective device for a bridge crane drum cable includes: four channel steels 3, respectively positioned at the four corners of the inlet / outlet port 2 of the drum bottom plate; and four flat idler rollers 4, respectively positioned on the four edges of the inlet / outlet port 2 of the drum bottom plate. The two ends of each flat idler roller 4 are rotatably mounted on the channel steels 3. The gap between two adjacent flat idler rollers 4 is less than 5mm to prevent excessive gaps from damaging the cable. Each flat idler roller 4 has a trunnion pressure plate 1 at both ends.

[0018] In use, according to the shape and size of the inlet / outlet 2 of the drum bottom plate of the bridge crane, prepare flat idler rollers 4 and channel steel 3 of the appropriate size. When installing after stopping the machine, lower the hook to the ground. Install and fix the four flat idler rollers 4 in parallel around the inlet / outlet 2 of the drum bottom plate, adjust their position so that their internal dimensions are slightly smaller than the dimensions of the inlet / outlet 2 of the drum bottom plate, and keep the gap between two adjacent flat idler rollers 4 less than 5mm, and ensure that the rollers rotate flexibly and reliably.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective device for a bridge crane reel cable, characterized in that, include: Four channel steels (3) are respectively set at the four corners of the inlet and outlet (2) of the bottom plate of the drum; Four flat rollers (4) are respectively set on the four edges of the inlet and outlet (2) of the bottom plate of the drum; The flat roller (4) is rotatably mounted on the channel steel (3) at both ends.

2. The protective device for a bridge crane reel cable according to claim 1, characterized in that, The gap between two adjacent flat rollers (4) is less than 5mm to avoid the cable being damaged by an excessively large gap.

3. The protective device for a bridge crane reel cable according to claim 1, characterized in that, Both ends of the flat roller (4) are provided with trunnion pressure plates (1).