A rotary tapping electric rust removal tool

By designing a rotary percussion electric rust removal tool, the problems of reliance on compressed air and limited working area of ​​traditional rust removal tools have been solved, achieving efficient, safe, and flexible rust removal and improving the rust removal and corrosion prevention efficiency of offshore platforms.

CN224574293UActive Publication Date: 2026-07-31ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
Filing Date
2025-07-24
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional rust removal tools rely heavily on compressed air, have limited operating areas, and workers are prone to inhaling rust chips. They also require scaffolding support at heights, resulting in low efficiency.

Method used

A rotary percussion electric rust removal tool was designed. It uses a drive mechanism to drive the rotating shaft to drive multiple percussion components. The percussion head is connected by a steel wire rope. The mounting frame is equipped with a protective shell. The motor drive does not require compressed air. The handle is detachable, which is convenient for working at heights.

Benefits of technology

It eliminates the need for compressed air supply, reduces dust inhalation, simplifies high-altitude operations, improves rust removal and corrosion prevention efficiency, reduces labor intensity, and enhances operational flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of rust removal equipment. A rotary percussion type electric rust removal tool includes a mounting frame, on which a rotating shaft and a drive mechanism for driving the shaft to rotate are mounted. Multiple rotating discs are fixedly sleeved on the rotating shaft. Multiple percussion components are spaced apart on the outer circumference of each rotating disc. Each percussion component includes a steel wire rope and a percussion head. One end of the steel wire rope is located on the outer circumference of the rotating disc, and the other end is connected to the percussion head. A handle is provided on one side of the mounting frame. This tool effectively solves the problems of traditional rust removal tools, such as strong dependence on compressed air, limited working area, easy inhalation of rust chips by operators, and the need for scaffolding support at heights above 2 meters, greatly improving rust removal and corrosion prevention efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of rust removal equipment technology, specifically to a rotary percussion type electric rust removal tool. Background Technology

[0002] Currently, offshore platforms are located in a humid marine environment. When the anti-corrosion coating fails, rust will appear on the equipment, decks, walls, and other parts of the offshore platform. At this time, it is necessary to quickly remove the rust and reapply anti-corrosion treatment to ensure the normal operation of the offshore platform. The commonly used rust removal tools on offshore platforms are pneumatic needle guns and trolley-type grinders.

[0003] Pneumatic needle guns use compressed air to drive the needle and wire cup to remove rust from corroded areas. However, pneumatic needle guns have several problems in actual use, mainly including the following:

[0004] First, pneumatic needle guns are highly dependent on compressed air during operation, and the supply of compressed air cannot meet the needs of the site when multiple pneumatic needle guns are working at the same time.

[0005] Secondly, when performing pneumatic rust removal operations, the workers are basically in a squatting position and holding a pneumatic needle gun. The workers are very close to the work point, and it is very easy for them to inhale the dust and rust chips that are knocked off, which can cause great harm to the workers. The squatting position for a long time can also cause great harm to the workers' waist and legs.

[0006] Third, for rust removal at high locations, workers need to first erect scaffolding and then rely on the scaffolding to carry out rust removal work. For local high-level rust removal, the actual operating cost is very high and the operating efficiency is low.

[0007] While wheeled grinders can solve the problems of dependence on compressed air and the need for rust removal by squatting, they are large and heavy, making them inconvenient to carry and move. They can only remove rust from flat surfaces such as decks and cannot effectively treat small areas or high places. Summary of the Invention

[0008] The purpose of this utility model is to provide a rotary percussion electric rust removal tool that can effectively solve the problems of traditional rust removal tools, such as strong dependence on compressed air, limited working area, easy inhalation of rust chips by operators, and the need for scaffolding support at positions above 2 meters, thereby greatly improving the efficiency of rust removal and corrosion prevention.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A rotary percussion type electric rust removal tool includes a mounting frame, on which a rotating shaft and a drive mechanism for driving the rotating shaft to rotate are provided. The rotating shaft is fixedly fitted with multiple rotating disks, and multiple percussion components are spaced apart on the outer circumferential surface of each rotating disk. Each percussion component includes a steel wire rope and a percussion head. One end of the steel wire rope is located on the outer circumferential surface of the rotating disk, and the other end of the steel wire rope is connected to the percussion head. A handle is provided on one side of the mounting frame.

[0011] Furthermore, each of the rotating disks has four striking components, which are arranged symmetrically in pairs.

[0012] Furthermore, the projections of each striking component on the two adjacent rotating disks along the axis of rotation are staggered, and the spacing between all projections is equal.

[0013] Furthermore, the mounting bracket is provided with a protective shell, and all the protective shells have openings on the front and bottom sides, and all the striking components are located inside the protective shell.

[0014] Furthermore, the surface of the striking head is provided with multiple spikes.

[0015] Furthermore, the two ends of the rotating shaft are respectively connected to the mounting bracket via bearings.

[0016] Furthermore, the drive mechanism includes a motor, a main drive wheel, a driven wheel, and a drive belt. The motor is mounted on a mounting bracket, the main drive wheel is mounted on the output shaft of the motor, the drive shaft is connected to the driven wheel via a drive belt, and the driven wheel is located at the end of the rotating shaft.

[0017] Furthermore, the grip is equipped with a remote control for controlling the motor to start or stop.

[0018] Furthermore, the end of the grip bar furthest from the mounting bracket is detachably connected to a handle.

[0019] Furthermore, the end of the grip bar furthest from the mounting bracket is connected to the handle via an extension rod, and both the grip bar and the extension rod, as well as the extension rod and the handle, are configured with threaded connections.

[0020] The beneficial effects of this utility model are: This tool effectively solves the problems of traditional rust removal tools, such as strong dependence on compressed air, limited working area, easy inhalation of rust chips by operators, and the need for scaffolding support at positions above 2 meters. It is lightweight, easy to assemble and disassemble, and does not require compressed air, which greatly improves the efficiency of rust removal and corrosion prevention. Attached Figure Description

[0021] Figure 1This is a perspective view of a rotary percussion type electric rust removal tool according to this utility model.

[0022] Figure 2 This is an exploded view of a rotary percussion type electric rust removal tool according to this utility model.

[0023] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will now be described with reference to the accompanying drawings.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a rotary percussion type electric rust removal tool includes a mounting frame 1, on which a rotating shaft 2 and a drive mechanism 3 for driving the rotating shaft 2 to rotate are provided. Multiple rotating disks 4 are fixedly sleeved on the rotating shaft 2. Multiple percussion components are arranged at intervals on the outer peripheral surface of each rotating disk 4. Each percussion component includes a steel wire rope 5 and a percussion head 6. One end of the steel wire rope 5 is located on the outer peripheral surface of the rotating disk 4, and the other end of the steel wire rope 5 is connected to the percussion head 6. A handle 7 is provided on one side of the mounting frame 1.

[0026] When using this tool, the drive mechanism 3 is activated, which drives the rotating shaft 2 to rotate. The rotating shaft 2 drives the various striking components on each rotating disk 4, and multiple striking heads 6 swing cyclically, aligning with and striking the rust adhering to various parts of the offshore platform, thereby achieving the effect of rust removal and promoting the progress of anti-corrosion work. It should be noted that, firstly, the striking head 6 is flexibly connected to the rotating disk 4 through the steel wire rope 5, which can absorb and reduce the reaction force generated when the striking head 6 acts on the rusted location, reducing the damage caused by the reaction force to the rotating disk 4 and the rotating shaft 2, thereby enhancing the stability of the tool and extending its service life; secondly, this tool is small and simple in design, requiring only the grip 7 to adjust the alignment of the rusted location, enabling rapid and effective treatment of rusted parts in small areas and high places, eliminating the need for operators to squat for long periods of time or to build auxiliary scaffolding, reducing the labor intensity of operators, and greatly improving the efficiency of rust removal and anti-corrosion.

[0027] Each of the rotating disks 4 has four striking components, arranged symmetrically in pairs. The projections of the striking components on adjacent rotating disks 4 onto the axis of rotation 2 are staggered, and the distance between all pairs of projections is equal. By limiting the position of each striking component on the rotating disk 4, the striking heads 6 can be prevented from bouncing up and becoming entangled after impacting the rust points, ensuring the stable operation of the tool.

[0028] The mounting bracket 1 is equipped with a protective shell 8. All protective shells 8 have openings 9 on their front and lower sides, and all striking components are located inside the protective shell 8. The protective shell 8 has two functions: first, it prevents the striking head 6 from accidentally falling off and flying out, causing injury, and also prevents the striking head 6 from accidentally colliding with the mounting bracket 1 during rotation, thus avoiding damage to each other; second, it prevents dust and rust particles from flying around during the striking head 6's impact with rust points, thereby preventing workers from inhaling the dust and rust particles shaken off by the striking.

[0029] The surface of the striking head 6 is provided with multiple spikes 10. The spikes 10 can enhance the striking head 6's ability to break through rust structures and further improve rust removal efficiency.

[0030] The two ends of the rotating shaft 2 are respectively connected to the mounting bracket 1 via bearings 11.

[0031] The drive mechanism 3 includes a motor 12, a main drive wheel 13, a driven wheel 14, and a drive belt 15. The motor 12 is mounted on the mounting bracket 1. The main drive wheel 13 is mounted on the output shaft of the motor 12. The drive shaft is connected to the driven wheel 14 via the drive belt 15. The driven wheel 14 is located at the end of the rotating shaft 2.

[0032] The grip 7 is equipped with a remote control 16 for controlling the start or stop of the motor 12.

[0033] It should be noted that the drive structure and the transmission configuration design of the rotating shaft 2 ensure that the drive mechanism 3 can stably drive the rotation of the striking component, meet the requirements of sufficient power transmission, and guarantee the cyclic striking effect of this tool. It also has the advantages of overload protection and low installation accuracy requirements. During the rust removal operation, the rust residue, rust chips and other debris knocked off will not cause jamming or other effects on the transmission part. In addition, the operation of this tool only requires the electricity used in daily life, eliminating the need for compressed air supply and reducing the actual operating cost.

[0034] The end of the grip 7 away from the mounting bracket 1 is detachably connected to a handle 17.

[0035] The end of the grip 7 away from the mounting bracket 1 is connected to the handle 17 via an extension rod 18. The grip 7 and the extension rod 18, as well as the extension rod 18 and the handle 17, are all configured with threaded connections.

[0036] It should be noted that the handle 17 is designed to make it easy for operators to grip the tool. The detachable assembly configuration of the handle 17, extension rod 18, and handle 7 allows the length of handle 7 to be extended according to actual conditions, thereby enabling effective treatment of rust spots at high locations. The assembly and disassembly are simple and quick, improving rust removal efficiency.

Claims

1. A rotary percussion type electric rust removal tool, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is provided with a rotating shaft (2) and a drive mechanism (3) for driving the rotating shaft (2) to rotate. The rotating shaft (2) is fixedly fitted with multiple rotating disks (4). Multiple striking components are spaced apart on the outer circumferential surface of each rotating disk (4). The striking components include a steel wire rope (5) and a striking head (6). One end of the steel wire rope (5) is located on the outer circumferential surface of the rotating disk (4), and the other end of the steel wire rope (5) is connected to the striking head (6). A handle (7) is provided on one side of the mounting bracket (1).

2. The rotary percussion type electric rust removal tool according to claim 1, characterized in that: Each of the rotating disks (4) has four striking components, which are arranged symmetrically in pairs.

3. The rotary percussion electric rust removal tool according to claim 2, characterized in that: The projections of each striking component on the two adjacent rotating disks (4) along the axis of the rotating shaft (2) are staggered, and the spacing between all projections is equal.

4. The rotary percussion electric rust removal tool according to claim 1, 2 or 3, characterized in that: The mounting bracket (1) is provided with a protective shell (8), and all the protective shells (8) have openings (9) on the front and lower sides, and all the striking components are located inside the protective shell (8).

5. The rotary percussion electric rust removal tool according to claim 1, characterized in that: The surface of the striking head (6) is provided with a plurality of spikes (10).

6. The rotary percussion type electric rust removal tool according to claim 1, characterized in that: The two ends of the rotating shaft (2) are connected to the mounting bracket (1) by bearings (11) respectively.

7. The rotary percussion electric rust removal tool according to claim 1 or 6, characterized in that: The drive mechanism (3) includes a motor (12), a main drive wheel (13), a driven wheel (14), and a drive belt (15). The motor (12) is mounted on the mounting bracket (1). The main drive wheel (13) is mounted on the output shaft of the motor (12). The drive shaft is connected to the driven wheel (14) via the drive belt (15). The driven wheel (14) is located at the end of the rotating shaft (2).

8. The rotary percussion type electric rust removal tool according to claim 7, characterized in that: The grip (7) is equipped with a remote control (16) for controlling the motor (12) to start or stop.

9. The rotary percussion type electric rust removal tool according to claim 1, characterized in that: The handle (17) is detachably connected to the end of the grip (7) away from the mounting bracket (1).

10. The rotary percussion electric rust removal tool according to claim 9, characterized in that: The end of the grip (7) away from the mounting bracket (1) is connected to the handle (17) via an extension rod (18). The grip (7) and the extension rod (18), as well as the extension rod (18) and the handle (17) are both configured with threaded connections.