Iron tower angle steel welding joint polishing device

Abstract

The utility model relates to the technical field of polishing devices, in particular to an iron tower angle steel welding joint polishing device which can comprehensively polish a welding joint of angle steel, especially a welding joint at the inner angle of the angle steel, improves the polishing effect and facilitates subsequent processing work. Comprising an abrasive belt; the sanding device further comprises a middle rod, a top belt wheel, a tensioning wheel, two arm rods, two side rollers and a driving motor, the middle rod is rotationally installed at the front end of the sanding belt, the tensioning wheel is rotationally installed in the middle of the middle rod, the inner ends of the two arm rods are connected with the two sides of the front end of the middle rod, the two arm rods are oppositely arranged, and the two side rollers are rotationally installed at the outer ends of the two arm rods respectively. The driving motor is installed on one arm rod, an output shaft of the driving motor is in transmission connection with one side rolling wheel, the abrasive belt is arranged on the outer wheel faces of the two side rolling wheels and the top belt wheel in a sleeving mode, and the tensioning wheel tensions the abrasive belt.

Description

A grinding device for welded joints of iron tower angle steel Technical Field

[0001] This utility model relates to the technical field of grinding devices, and in particular to a grinding device for welded joints of angle steel for iron towers. Background Technology

[0002] After welding, the angle steel components of the power tower will produce weld joints. These weld joints need to be ground to facilitate subsequent anti-corrosion treatment. Various grinding devices for weld joints are disclosed in the prior art. For example, Chinese utility model patent CN221159786U discloses an easily detachable handheld grinding device for angle steel of power towers. This grinding device includes a grinding machine with a grinding section at its upper part. A handheld part is located on one side of the grinding section. The grinding section includes a rotating shaft with a self-locking component on one side. A grinding disc is located on one side of the grinding section. A fixing disc for fixing the grinding disc is located on the outer periphery of the rotating shaft on one side of the grinding disc. A self-locking groove is provided inside the fixing disc. The self-locking groove and the self-locking component cooperate to connect the grinding disc between the fixing disc and the rotating shaft. This invention achieves quick assembly and disassembly between the grinding disc and the main body by cooperating with the self-locking component and the self-locking groove on the fixed plate; the self-locking component adopts a structure in which the inner cavity groove is embedded in the support column and driven by a spring to achieve a simple and reliable automatic locking connection.

[0003] When grinding the welded joints of angle steel, it is easier to grind the welded joints located on the outer wall of the angle steel using the above-mentioned grinding device. However, when grinding the welded joints located on the inner wall of the angle steel, the welded joints at the inner corner of the angle steel are not easy to grind due to the obstruction of the two side plates of the angle steel, which affects the subsequent processing work. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a grinding device for welding joints of angle steel that can comprehensively grind angle steel, especially for grinding the welding joints at the inner corners of angle steel, thereby improving the grinding effect and facilitating subsequent processing.

[0005] This utility model discloses a grinding device for welded joints of angle steel in iron towers, comprising a sanding belt; a central rod, a top pulley, a tensioning pulley, two booms, two side rollers, and a drive motor. The central rod is rotatably mounted on the front end of the sanding belt, and the tensioning pulley is rotatably mounted on the middle of the central rod. The inner ends of the two booms are connected to the front ends of the central rod on both sides, and the two booms are arranged opposite each other. The two side rollers are rotatably mounted on the outer ends of the two booms respectively. The drive motor is mounted on one boom, and the output shaft of the drive motor is connected to one side roller. The sanding belt is fitted onto the outer surfaces of the two side rollers and the top pulley, and the tensioning pulley tensions the sanding belt. The angle of the two booms relative to the central rod is adjusted so that the side rollers, the top pulley, and the side rollers... The abrasive belts are arranged at 90 degrees between the rollers. The tensioning roller tightens the abrasive belts, and the drive motor drives one side roller to rotate, which in turn drives the abrasive belt to rotate at high speed. At this time, the driver holds the drive motor and the center rod with both hands respectively, and inserts the abrasive belt into the inner wall of the angle steel. This allows the abrasive belts, arranged at 90 degrees, to grind the weld joints on the inner wall of the angle steel. Because the abrasive belts can fit tightly against the weld joints on the inner wall of the angle steel, especially the weld joints at the inner corners of the angle steel, they can also be ground. Since the abrasive belts between the side rollers and the top roller are arranged in a straight line, this part of the abrasive belts can also grind the weld joints on the outer wall of the angle steel. The grinding range is larger and more comprehensive, improving the grinding effect without affecting subsequent processing work.

[0006] Preferably, it also includes a slider and a spring. The slider is slidably mounted on the central rod, and the tension wheel is rotatably mounted on the slider. One end of the spring is connected to the slider, and the other end of the spring is connected to the central rod. The spring elastically supports the slider and the tension wheel, so that the tension wheel maintains a certain tension on the sanding belt, thereby improving tension stability.

[0007] Preferably, it also includes a sleeve and two support rods. The sleeve is slidably fitted onto the rear part of the middle rod. The inner ends of the two support rods are rotatably connected to the two sides of the sleeve, and the outer ends of the two support rods are rotatably connected to the middle parts of the two arms, respectively. Adjusting the position of the sleeve along the middle rod causes the two support rods to drive the two arms to change their angles, thereby adjusting the angle of the abrasive belt between the side roller, the top pulley, and the side roller to adapt to different grinding surfaces.

[0008] Preferably, it also includes a second spring, which is mounted on the middle rod. The two ends of the second spring are connected to the support rod and the middle rod, respectively. The second spring provides elastic support sleeves, which allow the two side rollers and the two arm rods to adjust their angles adaptively when they are squeezed by the two side plates of the angle steel. This ensures that the sanding belt between the side rollers, the top pulley, and the side rollers is in close contact with the welded joint of the inner wall of the angle steel, thereby improving the grinding quality.

[0009] Preferably, it also includes a limiting seat and a locking bolt. The limiting seat is slidably mounted on the middle rod, and the end of the second spring is connected to the limiting seat. The locking bolt is rotatably screwed onto the limiting seat, locking the limiting seat onto the middle rod. When it is necessary to adjust the angle of the two arms and the two side rollers, push the limiting seat along the middle rod. The limiting seat pushes the sleeve to move through the second spring, causing the sleeve to push the two arms to swing through the two support rods, thereby adjusting the angle of the two arms and the two side rollers. Tighten the locking bolt to lock the limiting seat onto the middle rod. The angle adjustment operation is simple and keeps the two arms elastic, making the sanding belt and the welding head contact more tightly.

[0010] Preferably, it also includes two corner plates and multiple mounting bolts. The two corner plates are respectively mounted on the two arms by multiple mounting bolts, so that the two corner plates support the sanding belt from the inside. The two corner plates support the part of the sanding belt between the side roller and the top roller, so that the sanding surface of this part of the sanding belt is smoother. After loosening the multiple mounting bolts and adjusting the support angle between the two corner plates and the sanding belt, tighten the multiple mounting bolts to lock the two corner plates and improve the sanding effect.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Adjusting the angle between the two arms relative to the center rod, so that the sanding belt between the side rollers, top pulley, and side rollers is arranged at 90 degrees, the tensioning wheel tensions the sanding belt, the drive motor drives one side roller to rotate, and the other side roller drives the sanding belt to rotate at high speed. At this time, both hands hold the drive motor and the center rod respectively, and the sanding belt is inserted into the inner wall of the angle steel, so that the sanding belt arranged at 90 degrees grinds the weld joints of the inner wall of the angle steel. Because the sanding belt can fit tightly against the weld joints of the inner wall of the angle steel, especially the weld joints at the inner corner of the angle steel, it can also be ground. Because the sanding belt between the side rollers and top pulley is arranged in a straight line, this part of the sanding belt can also grind the weld joints of the outer wall of the angle steel, resulting in a larger and more comprehensive grinding range, improving the grinding effect, and not affecting subsequent processing work. Attached Figure Description

[0012] Figure 1 is a structural schematic diagram of this utility model;

[0013] Figure 2 is a top view of the structure of this utility model;

[0014] Figure 3 is a schematic diagram of the structure of the sanding belt in a straight state according to this utility model;

[0015] Figure 4 is a schematic diagram of the disassembled state of this utility model;

[0016] Figure 5 is a structural schematic diagram of the welded joint on the inner wall of the angle steel of this utility model when it is being ground.

[0017] The following are labels in the attached diagram: 1. Sanding belt; 2. Center rod; 3. Top pulley; 4. Tensioning wheel; 5. Arm; 6. Side roller; 7. Drive motor; 8. Slider; 9. Spring; 10. Sleeve; 11. Support rod; 12. Spring II; 13. Limit seat; 14. Locking bolt; 15. Angle plate; 16. Mounting bolt. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Embodiment 1

[0019] As shown in Figures 1 to 5, a grinding device for welded joints of steel tower angle steel includes a sanding belt 1; it also includes a central rod 2, a top pulley 3, a tensioning wheel 4, two booms 5, two side rollers 6, and a drive motor 7. The central rod 2 is rotatably mounted on the front end of the sanding belt 1, the tensioning wheel 4 is rotatably mounted on the middle of the central rod 2, the inner ends of the two booms 5 are connected to the front ends of the central rod 2, the two booms 5 are arranged opposite each other, the two side rollers 6 are rotatably mounted on the outer ends of the two booms 5 respectively, and the drive motor 7 is mounted on one boom 5. The output of the drive motor 7 is... The shaft is connected to a side roller 6 for transmission. The sanding belt 1 is fitted on the outer wheel surface of the two side rollers 6 and the top pulley 3. The tensioning wheel 4 tensions the sanding belt 1. It also includes a slider 8 and a spring 9. The slider 8 is slidably mounted on the central rod 2. The tensioning wheel 4 is rotatably mounted on the slider 8. One end of the spring 9 is connected to the slider 8, and the other end of the spring 9 is connected to the central rod 2. It also includes two corner plates 15 and multiple mounting bolts 16. The two corner plates 15 are respectively mounted on the two arm rods 5 by multiple mounting bolts 16, so that the two corner plates 15 support the sanding belt 1 from the inside.

[0020] Adjust the angles of the two arms 5 relative to the center rod 2 so that the sanding belt 1 between the side rollers 6, the top pulley 3, and the side rollers 6 are arranged at 90 degrees. The spring 9 elastically supports the slider 8 and the tension wheel 4, so that the tension wheel 4 maintains a certain tension on the sanding belt 1, improving tension stability. The drive motor 7 drives one side roller 6 to rotate, and the other side roller 6 drives the sanding belt 1 to rotate at high speed. At this time, hold the drive motor 7 and the center rod 2 with both hands respectively, and insert the sanding belt 1 into the inner wall of the angle steel. The two angle plates 15 support the sanding belt 1 between the side rollers 6 and the top pulley 3. The section between rollers 3 makes the grinding surface of this part of the abrasive belt 1 smoother, allowing the abrasive belt 1, arranged at 90 degrees, to grind the weld joints on the inner wall of the angle steel. Because the abrasive belt 1 can closely fit the weld joints on the inner wall of the angle steel, especially the weld joints at the inner corners of the angle steel, it can also grind them. Since the abrasive belt 1 between the side rollers 6 and the top roller 3 is arranged in a straight line, this part of the abrasive belt 1 can also grind the weld joints on the outer wall of the angle steel, resulting in a larger and more comprehensive grinding range, improving the grinding effect, and not affecting subsequent processing work. Example 2

[0021] As shown in Figures 1 to 5, based on Embodiment 1, it further includes a sleeve 10 and two support rods 11. The sleeve 10 is slidably fitted onto the rear part of the middle rod 2. The inner ends of the two support rods 11 are rotatably connected to the two sides of the sleeve 10, and the outer ends of the two support rods 11 are rotatably connected to the middle parts of the two arm rods 5. It also includes a second spring 12, which is fitted onto the middle rod 2. The two ends of the second spring 12 are connected to the support rods 11 and the middle rod 2, respectively. It also includes a limiting seat 13 and a locking bolt 14. The limiting seat 13 is slidably fitted onto the middle rod 2. The end of the second spring 12 is connected to the limiting seat 13. The locking bolt 14 is rotatably screwed onto the limiting seat 13, and the locking bolt 14 locks the limiting seat 13 onto the middle rod 2.

[0022] When it is necessary to adjust the angles of the two arms 5 and the two side rollers 6, push the limiting seat 13 along the middle rod 2. The limiting seat 13 pushes the sleeve 10 along the middle rod 2 through the second spring 12 to adjust the position of the sleeve 10. This causes the sleeve 10 to push the two arms 5 to swing through the two support rods 11, thereby adjusting the angles of the two arms 5 and the two side rollers 6. Tighten the locking bolt 14 to lock the limiting seat 13 on the middle rod 2, so that the two support rods 11 drive the two arms 5 to change their angles, thereby adjusting the angles of the side rollers 6, the top pulley 3, and the sanding belt 1 between the side rollers 6 to adapt to different grinding surfaces. The second spring 12 elastically supports the sleeve 10, so that the two side rollers 6 and the two arms 5 can adaptively adjust their angles when they are squeezed by the two side plates of the angle steel. This ensures that the sanding belt 1 between the side rollers 6, the top pulley 3, and the side rollers 6 is in close contact with the welded joint of the inner wall of the angle steel, and keeps the two arms 5 elastic, making the sanding belt 1 in closer contact with the welded joint and improving the grinding quality.

[0023] As shown in Figures 1 to 5, the present invention provides a grinding device for angle steel welded joints of iron towers. During operation, the limiting seat 13 is first pushed along the central rod 2. The limiting seat 13, via spring 2 12, pushes the sleeve 10 to move, causing the sleeve 10 to push the two arms 5 to swing via two support rods 11, thereby adjusting the angles of the two arms 5 and the two side rollers 6. Then, the locking bolt 14 is tightened to lock the limiting seat 13 onto the central rod 2, so that the side rollers 6, the top pulley 3, and the sanding belt 1 between the side rollers 6 are arranged at 90 degrees. The elasticity of the spring 9 causes the tensioning wheel 4 to tension the sanding belt 1. Then, the drive motor 7 drives one... The side roller 6 rotates, driving the sanding belt 1 to rotate at high speed. At this time, both hands hold the drive motor 7 and the middle rod 2 respectively, and the sanding belt 1 is inserted into the inner wall of the angle steel, so that the sanding belt 1, which is arranged at 90 degrees, can grind the weld joints of the inner wall of the angle steel. Since the sanding belt 1 can fit tightly with the weld joints of the inner wall of the angle steel, the weld joints at the inner corner of the angle steel can also be ground. Finally, the angles of the two arms 5 are adjusted again so that the sanding belt 1 between the side roller 6, the top pulley 3 and the side roller 6 are arranged in a straight line, so that this part of the sanding belt 1 can also fully grind the weld joints of the outer wall of the angle steel.

[0024] The main functions achieved by this utility model are:

[0025] 1. It can thoroughly grind the welded joints of angle steel, especially the welded joints at the inner corners of the angle steel, improving the grinding effect and facilitating subsequent processing work;

[0026] 2. By setting up elastic support components, it can adapt to different sanding surfaces and improve sanding quality;

[0027] 3. The angle of the grinding section of the sanding belt 1 can be flexibly adjusted, resulting in a larger and more comprehensive grinding range.

[0028] The grinding device for welded joints of iron tower angle steel of this utility model has common mechanical installation, connection or setting methods, and can be implemented as long as it can achieve its beneficial effect. The sanding belt 1, middle rod 2, top pulley 3, tensioning wheel 4, side roller 6, drive motor 7, slider 8, spring 9, spring 12, limit seat 13, locking bolt 14 and mounting bolt 16 of the grinding device for welded joints of iron tower angle steel of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from technical personnel in this field.

[0029] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A grinding device for welded joints of angle steel in iron towers, comprising a sanding belt (1); characterized in that, It also includes a center rod (2), a top pulley (3), a tensioning wheel (4), two arms (5), two side rollers (6) and a drive motor (7). The center rod (2) is rotatably mounted on the front end of the sanding belt (1). The tensioning wheel (4) is rotatably mounted on the middle part of the center rod (2). The inner ends of the two arms (5) are connected to the front ends of the center rod (2). The two arms (5) are arranged opposite to each other. The two side rollers (6) are rotatably mounted on the outer ends of the two arms (5). The drive motor (7) is mounted on one arm (5). The output shaft of the drive motor (7) is connected to one side roller (6) for transmission. The sanding belt (1) is fitted on the outer wheel surfaces of the two side rollers (6) and the top pulley (3). The tensioning wheel (4) tensions the sanding belt (1).

2. The grinding device for welded joints of iron tower angle steel as described in claim 1, characterized in that, It also includes a slider (8) and a spring (9). The slider (8) is slidably mounted on the middle rod (2), and the tension wheel (4) is rotatably mounted on the slider (8). One end of the spring (9) is connected to the slider (8), and the other end of the spring (9) is connected to the middle rod (2).

3. The grinding device for welded joints of iron tower angle steel as described in claim 1, characterized in that, It also includes a sleeve (10) and two support rods (11). The sleeve (10) is slidably fitted on the rear part of the middle rod (2). The inner ends of the two support rods (11) are rotatably connected to the two sides of the sleeve (10) respectively, and the outer ends of the two support rods (11) are rotatably connected to the middle part of the two arms (5) respectively.

4. The grinding device for welded joints of iron tower angle steel as described in claim 3, characterized in that, It also includes a second spring (12), which is mounted on the middle rod (2). The two ends of the second spring (12) are connected to the support rod (11) and the middle rod (2) respectively.

5. A grinding device for welded joints of iron tower angle steel as described in claim 4, characterized in that, It also includes a limiting seat (13) and a locking bolt (14). The limiting seat (13) is slidably mounted on the middle rod (2). The end of the second spring (12) is connected to the limiting seat (13). The locking bolt (14) is rotatably screwed onto the limiting seat (13). The locking bolt (14) locks the limiting seat (13) onto the middle rod (2).

6. The grinding device for welded joints of iron tower angle steel as described in claim 1, characterized in that, It also includes two corner plates (15) and multiple mounting bolts (16), the two corner plates (15) are respectively mounted on the two arms (5) by multiple mounting bolts (16), so that the two corner plates (15) support the sand belt (1) from the inside.

Images