Steel structure net rack polishing device

By designing a steel structure grid grinding device, and using the synchronous rotation of upper and lower wire brush rollers and the adjustment of the spacing by hydraulic cylinders, automated grinding was achieved, solving the problems of low efficiency and high labor intensity of traditional manual grinding, and improving grinding efficiency and applicability.

CN224144206UActive Publication Date: 2026-04-21BEIJING JIAHENG GUANGTAI CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING JIAHENG GUANGTAI CONSTR ENG CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, burrs and weld slag are easily generated at the weld joints of steel structure space frames. Traditional manual grinding methods are inefficient, labor-intensive, and pose occupational disease risks.

Method used

Design a steel structure grid frame grinding device, including a grinding structure and a traction structure. It adopts synchronous rotation of upper and lower steel wire brush rollers, and uses hydraulic cylinders to adjust the spacing. Automatic grinding is achieved by motor drive and steel wire rope traction.

Benefits of technology

The system enables automated grinding of steel space frames, reducing the labor intensity of workers, improving grinding efficiency, adapting to space frames of different thicknesses, and expanding the applicability of the device.

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Abstract

The utility model discloses a steel structure net rack polishing device which comprises a polishing structure and a traction structure, the traction structure is located in front of the polishing structure, and supporting tables are installed between the traction structure and the polishing structure and behind the polishing structure. The polishing structure comprises a U-shaped first base, a lower steel wire brush roller is rotatably mounted on the inner side of the first base, a first motor is mounted on the outer side of the first base, an output shaft of the first motor is connected with a shaft of the lower steel wire brush roller, and hydraulic cylinders are mounted at the tops of the left side and the right side of the first base correspondingly; two symmetrical L-shaped plates are installed at the top ends of output rods of the two hydraulic cylinders, an upper steel wire brush roller is rotationally installed between the two L-shaped plates, a second motor is installed on one L-shaped plate, and an output shaft of the second motor is connected with a shaft of the upper steel wire brush roller; according to the device, the polishing structure and the traction structure are arranged to be matched, automatic polishing of the steel structure net rack can be achieved, manual intervention is reduced, and the labor intensity of workers is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure space frame technology, specifically a steel structure space frame grinding device. Background Technology

[0002] Steel space frames are widely used in construction, bridges, shipbuilding, petrochemicals, and other fields, offering advantages such as high strength, light weight, and fast construction speed. However, during the manufacturing process, defects such as burrs and weld slag are prone to occur at the weld joints. These defects not only affect the appearance quality of the space frame but may also reduce its durability and safety. Therefore, before being put into use, steel space frames typically require surface grinding to remove these defects. Traditional grinding methods rely mainly on manual operation, with workers using handheld grinders or wire brushes. However, manual grinding is slow, especially for large steel space frames, resulting in a large workload and long processing time. Furthermore, using handheld tools requires workers to maintain a fixed posture for extended periods, leading to high labor intensity and increasing the risk of fatigue and occupational diseases.

[0003] Therefore, we have designed a steel structure space frame grinding device to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a steel structure grid grinding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel structure grid grinding device, comprising a grinding structure and a traction structure, wherein the traction structure is located in front of the grinding structure, and support platforms are installed between the traction structure and the grinding structure and behind the grinding structure.

[0006] The grinding structure includes a U-shaped first base, a lower wire brush roller rotatably mounted on the inner side of the first base, a first motor mounted on the outer side of the first base, the output shaft of the first motor connected to the shaft of the lower wire brush roller, hydraulic cylinders mounted on the top of both the left and right sides of the first base, two symmetrical L-shaped plates mounted on the top of the output rods of the two hydraulic cylinders, an upper wire brush roller rotatably mounted between the two L-shaped plates, a second motor mounted on one of the L-shaped plates, and the output shaft of the second motor connected to the shaft of the upper wire brush roller.

[0007] The traction structure includes a second base, on which two first support columns and two second support columns are mounted. The two first support columns are located behind the two second support columns. A guide roller is rotatably mounted between the two first support columns, and a rotating rod is rotatably mounted between the two second support columns. A third motor is mounted on one of the second support columns. The output shaft of the third motor is connected to the shaft of the rotating rod. Two rope reels are mounted on the rotating rod. Steel wire rope is wound clockwise on both rope reels. One end of the steel wire rope is fixed to the rope reel, and the other end of the steel wire rope passes under the guide roller and is connected to a hook.

[0008] Preferably, the rotating rod has a rectangular cross-section and multiple threaded holes for fixing the position of the rope reel, and bolts are provided in the threaded holes.

[0009] Preferably, the side of the winding reel has a rectangular through hole for the rotating rod to pass through, and a rectangular positioning sleeve is installed at one end of the rectangular through hole. The positioning sleeve has a through hole that can be aligned with the threaded hole on the rotating rod, and the size of the through hole is large enough for the bolt to pass through.

[0010] Preferably, the support platform includes a U-shaped third base, on the inner side of which multiple rollers are rotatably mounted, and these rollers are distributed at equal intervals in the same horizontal plane.

[0011] Preferably, the lower wire brush roller is located directly below the upper wire brush roller, and the lower wire brush roller is parallel to the upper wire brush roller, the guide roller, and the rotating rod.

[0012] Compared with the prior art, this utility model provides a steel structure grid grinding device, which has the following beneficial effects:

[0013] This steel structure space frame grinding device, through the combination of a grinding structure and a traction structure, can achieve automatic grinding of steel structure space frames, reducing manual intervention and lowering the labor intensity of workers. The grinding structure adopts a design where the upper and lower wire brush rollers rotate simultaneously, enabling synchronous grinding of the weld points on the upper and lower surfaces of the steel structure space frame, thus improving grinding efficiency. Moreover, the hydraulic cylinder in the grinding structure can flexibly adjust the distance between the upper and lower wire brush rollers, allowing the device to adapt to steel structure space frames of different thicknesses and expanding its application range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the grinding structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the traction structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the support platform of this utility model;

[0018] Figure 5 This is a schematic diagram showing the fixing of the rotating rod and the rope reel of this utility model.

[0019] Reference numerals: 1. Grinding structure; 11. First base; 12. Lower wire brush roller; 13. First motor; 14. Hydraulic cylinder; 15. L-shaped plate; 16. Upper wire brush roller; 17. Second motor; 2. Traction structure; 21. Second base; 22. First support column; 23. Second support column; 24. Guide roller; 25. Rotating rod; 26. Third motor; 27. Rope reel; 28. Wire rope; 29. ​​Hook; 210. Bolt; 211. Positioning sleeve; 3. Support platform; 31. Third base; 32. Support roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 In this embodiment: a steel structure grid grinding device mainly includes a grinding structure 1 and a traction structure 2. The traction structure 2 is located in front of the grinding structure 1, and a support platform 3 is installed between the two and behind the grinding structure 1.

[0022] Among them, grinding structure 1 is used for grinding the steel structure space frame, such as... Figure 2As shown, the grinding structure 1 includes a U-shaped first base 11. A lower wire brush roller 12 is rotatably mounted on the inner side of the first base 11, and a first motor 13 is mounted on the outer side. The output shaft of the first motor 13 is connected to the shaft of the lower wire brush roller 12. The function of the first motor 13 is to drive the lower wire brush roller 12 to rotate. A hydraulic cylinder 14 is mounted on the top of each of the left and right sides of the first base 11. Two symmetrical L-shaped plates 15 are mounted on the top of the output rods of the two hydraulic cylinders 14. The two L-shaped plates 15 are rotatably mounted between each other. There is an upper wire brush roller 16, and a second motor 17 is installed on one of the L-shaped plates 15. The output shaft of the second motor 17 is connected to the shaft of the upper wire brush roller 16. The function of the second motor 17 is to drive the upper wire brush roller 16 to rotate. By extending and retracting the hydraulic cylinder 14, the distance between the upper wire brush roller 16 and the lower wire brush roller 12 can be adjusted to accommodate steel structure frames of different thicknesses. The upper wire brush roller 16 and the lower wire brush roller 12 rotate simultaneously, which can grind both the upper and lower sides of the steel structure frame, improving grinding efficiency.

[0023] Among them, the traction structure 2 is used to move the steel structure space frame so that it can be ground by the grinding structure 1, such as Figure 3 As shown, the traction structure 2 includes a second base 21, on which two first support columns 22 and two second support columns 23 are mounted. The two first support columns 22 are located behind the two second support columns 23. A guide roller 24 is rotatably mounted between the two first support columns 22, and a rotating rod 25 is rotatably mounted between the two second support columns 23. A third motor 26 is mounted on one of the second support columns 23. The output shaft of the third motor 26 is connected to the shaft of the rotating rod 25. The third motor 26 uses a reduction gear. The motor drives the rotating rod 25 to rotate. Two rope reels 27 are installed on the rotating rod 25. Steel wire rope 28 is wound clockwise on both rope reels 27. One end of the steel wire rope 28 is fixed to the rope reel 27, and the other end passes under the guide roller 24 and is connected to a hook 29. When the hook 29 is hooked on the steel structure frame, the rotating rod 25 is driven to rotate by the third motor 26, and the steel wire rope 28 on the rope reel 27 is tightened, thereby pulling the hook 29 to move and realizing the traction of the steel structure frame.

[0024] like Figure 5As shown, the rotating rod 25 has a rectangular cross-section and multiple threaded holes for fixing the position of the rope reel 27. Bolts 210 are installed in the threaded holes. The side of the rope reel 27 has a rectangular through hole for the rotating rod 25 to pass through. A rectangular positioning sleeve 211 is installed at one end of the rectangular through hole. The positioning sleeve 211 has a through hole that can be aligned with the threaded holes on the rotating rod 25. The through hole is large enough for the bolt 210 to pass through. By fixing the positioning sleeve 211 to different threaded hole positions on the rotating rod 25 with bolts 210, the position of the rope reel 27 can be adjusted to adapt to steel structure frames of different widths.

[0025] like Figure 4 As shown, the support platform 3 includes a U-shaped third base 31, on the inner side of which multiple rollers 32 are rotatably mounted. These rollers 32 are evenly distributed in the same horizontal plane. The rollers 32 are used to support the steel structure grid and can reduce its frictional resistance during movement, thereby ensuring that the steel structure grid can pass smoothly through the grinding structure 1.

[0026] The working process of the device: When using the device, first place the steel structure grid frame on the roller 32 of the support platform 3 behind the grinding structure 1, then hook the front end of the steel structure grid frame with the hook 29, start the third motor 26, the rotating rod 25 drives the rope reel 27 to rotate, the wire rope 28 is tightened, and the steel structure grid frame is pulled forward.

[0027] When the steel structure space frame is about to enter the grinding structure 1, the first motor 13 and the second motor 17 are started, and the lower wire brush roller 12 and the upper wire brush roller 16 rotate simultaneously to grind the weld points on the upper and lower surfaces of the steel structure space frame.

[0028] The grinding is completed once the entire steel structure space frame has passed through the grinding structure 1. Then, the first motor 13, the second motor 17, and the third motor 26 are turned off, and finally the ground steel structure space frame is removed from the device.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel structure grid polishing device, comprising a polishing structure (1) and a traction structure (2), characterized in that: The traction structure (2) is located in front of the grinding structure (1), and support platforms (3) are installed between the traction structure (2) and the grinding structure (1) and behind the grinding structure (1). The grinding structure (1) includes a U-shaped first base (11), a lower wire brush roller (12) is rotatably mounted on the inner side of the first base (11), a first motor (13) is mounted on the outer side of the first base (11), the output shaft of the first motor (13) is connected to the shaft of the lower wire brush roller (12), hydraulic cylinders (14) are mounted on the top of the left and right sides of the first base (11), two symmetrical L-shaped plates (15) are mounted on the top of the output rods of the two hydraulic cylinders (14), an upper wire brush roller (16) is rotatably mounted between the two L-shaped plates (15), a second motor (17) is mounted on one of the L-shaped plates (15), and the output shaft of the second motor (17) is connected to the shaft of the upper wire brush roller (16); The traction structure (2) includes a second base (21), on which two first support columns (22) and two second support columns (23) are mounted. The two first support columns (22) are located behind the two second support columns (23). A guide roller (24) is rotatably mounted between the two first support columns (22). A rotating rod (25) is rotatably mounted between the two second support columns (23). A third motor (26) is mounted on one of the second support columns (23). The output shaft of the third motor (26) is connected to the shaft of the rotating rod (25). Two rope reels (27) are mounted on the rotating rod (25). A steel wire rope (28) is wound clockwise on each of the two rope reels (27). One end of the steel wire rope (28) is fixed on the rope reel (27). The other end of the steel wire rope (28) passes under the guide roller (24) and is connected to a hook (29).

2. The steel structure space truss polishing device according to claim 1, characterized in that: The rotating rod (25) has a rectangular cross section and multiple threaded holes for fixing the position of the rope reel (27) are provided on the rotating rod (25), and bolts (210) are provided on the threaded holes.

3. The steel structure space truss polishing device according to claim 2, characterized in that: The side of the winding reel (27) has a rectangular through hole for the rotating rod (25) to pass through, and a rectangular positioning sleeve (211) is installed at one end of the rectangular through hole. The positioning sleeve (211) has a through hole that can be aligned with the threaded hole on the rotating rod (25), and the size of the through hole is large enough for the screw of the bolt (210) to pass through.

4. The steel structure net rack polishing device according to claim 1, characterized in that: The support platform (3) includes a U-shaped third base (31), on which multiple rollers (32) are rotatably mounted, and these rollers (32) are distributed at equal intervals in the same horizontal plane.

5. The steel structure space truss polishing device according to claim 1, characterized in that: The lower wire brush roller (12) is located directly below the upper wire brush roller (16), and the lower wire brush roller (12) is parallel to the upper wire brush roller (16), the guide roller (24) and the rotating rod (25).