A mobile steel bridge edge grinding device

Abstract

This invention relates to the field of steel bridge edge grinding technology, and proposes a mobile steel bridge edge grinding device, including a steel structure, and further including: a frame, a grinding frame, a grinding mechanism, a moving mechanism, and a dust removal mechanism. The frame is set on the steel structure, the grinding frame is slidably set on the frame, and a tension spring is set between the frame and the grinding frame. The grinding mechanism is set on the grinding frame and includes a grinding shaft, which is rotatably set inside the grinding frame. Two grinding heads are set inside the grinding frame. The moving mechanism is set on the grinding frame and includes a moving wheel, which is set on the grinding frame. The dust removal mechanism is set on the grinding frame and includes a dust collection box, which is set on the grinding frame. Through the above technical solution, the problem of time-consuming and laborious grinding in related technologies, where rust and iron filings float nearby and are easily inhaled by operators, causing physical harm to the operators, is solved.

Description

Technical Field

[0001] This invention relates to the field of steel bridge edge grinding technology, specifically to a mobile steel bridge edge grinding device. Background Technology

[0002] Steel structure bridges are bridges whose main load-bearing structure is made of steel. The beams and legs or piers (abutments) form a rigid connection. Due to the rigidity and density of the beams and piers, the beams and piers are subjected to the force as a whole. The piers not only bear the vertical pressure caused by the load on the beams, but also bear the bending moment and horizontal thrust. The structural forms can be divided into portal steel structure bridges, inclined leg steel structure bridges, T-shaped steel structure bridges and continuous steel structure bridges. The main beams of steel structure bridges generally need to bear positive and negative bending moments. The cross-section should preferably be a box section. The main beams of continuous steel structure bridges are subjected to the same force as continuous beams, and the cross-sectional form and size are also basically the same as those of continuous beams.

[0003] When manufacturing steel bridges, rust prevention treatment is required for the steel structure. This is usually done by spraying rust-preventive paint. However, after a period of use, the rust-preventive paint becomes less effective after exposure to sun and rain. Furthermore, the edges of the steel structure are thinner than the middle, making them more prone to rust and accelerating corrosion. Therefore, it is necessary to grind the rust on the edges of the steel structure and then re-spray to ensure the rust prevention effect. The existing grinding method usually involves operators using handheld angle grinders to grind the steel structure. This is time-consuming and laborious, and the rust and iron filings produced during grinding can float nearby and be easily inhaled by the operators, causing physical harm. Summary of the Invention

[0004] This invention proposes a mobile steel bridge edge grinding device, which solves the problem in related technologies that are time-consuming and laborious, while the rust and iron filings produced during grinding float nearby and are easily inhaled by operators, causing physical harm to them.

[0005] The technical solution of the present invention is as follows: a mobile steel bridge edge grinding device, comprising a steel structure, and further comprising: a frame, a grinding frame, a grinding mechanism, a moving mechanism and a dust removal mechanism;

[0006] The frame is mounted on a steel structure;

[0007] The grinding frame is slidably mounted on the frame, and a tension spring is provided between the frame and the grinding frame;

[0008] The grinding mechanism is mounted on a grinding frame. The grinding mechanism includes a grinding shaft, which is rotatably mounted inside the grinding frame. Two grinding heads are mounted inside the grinding frame for grinding the edges of the steel structure.

[0009] The moving mechanism is mounted on the grinding frame, and the moving mechanism includes moving wheels, which are mounted on the grinding frame to drive the grinding frame to move on the steel structure;

[0010] The dust removal mechanism is installed on the grinding frame, and the dust removal mechanism includes a dust collection box, which is installed on the grinding frame and is used to collect the dust generated during grinding.

[0011] Preferably, the grinding mechanism further includes: a rotating sleeve, a sliding shaft, a first motor, and a first electric cylinder;

[0012] The rotating sleeve is rotatably mounted on the grinding frame. Both the rotating sleeve and the grinding shaft are equipped with transmission wheels, and a transmission belt is connected between the two transmission wheels.

[0013] The sliding shaft is slidably mounted on the rotating sleeve, and the grinding head is mounted on the sliding shaft;

[0014] The first motor is mounted on the grinding frame, and the grinding shaft is mounted on the output end of the first motor;

[0015] The first electric cylinder is mounted on the grinding frame via a mounting bracket, and the sliding shaft is located at the output end of the first electric cylinder.

[0016] Preferably, the moving mechanism further includes: a moving frame, a connecting frame, and a second motor;

[0017] The movable frame is located at the output end of the first electric cylinder;

[0018] The connecting frame is mounted on the movable frame, and the movable wheel is rotatably mounted inside the connecting frame;

[0019] The second motor is mounted on the connecting frame, and the output end of the second motor passes through the connecting frame and is fixedly connected to the moving wheel.

[0020] Preferably, the dust removal mechanism further includes: a filter plate, a dust collection pipe frame, a dust collection fan, and an air filter element;

[0021] The filter plate is installed inside the dust collection box;

[0022] The suction pipe frame is connected to the dust collection box, and a suction head is connected to the suction pipe frame;

[0023] The dust collection fan is installed inside the dust collection box, and the air inlet of the dust collection box faces the filter plate;

[0024] The air filter element is installed inside the dust collection box, and the dust collection box has an air outlet.

[0025] Preferably, the frame is provided with a paint removal mechanism, which includes: a third motor, a rotating shaft and a wire grinding head;

[0026] The third motor is mounted on the frame;

[0027] The rotating shaft is located at the output end of the third motor;

[0028] The wire grinding head is mounted on the rotating shaft.

[0029] Preferably, the movable wheel is provided with a rubber layer, and the rubber layer has anti-slip grooves.

[0030] Preferably, the dust collection box is provided with a handle.

[0031] The working principle and beneficial effects of this invention are as follows:

[0032] 1. In this invention, the first electric cylinder on the mounting frame descends, thereby driving the moving frame to descend, so that the moving wheel contacts the steel structure. Then, the second motor on the connecting frame drives the moving wheel to rotate, thereby supporting the grinding frame to move on the steel structure.

[0033] 2. In this invention, the first motor on the grinding frame drives the grinding shaft to rotate, thereby driving the sliding shaft and grinding head to rotate via the transmission belt. Then, the first electric cylinder on the mounting frame extends, thereby driving the grinding head on the sliding shaft to contact the steel structure, thereby driving the edge of the steel structure to be ground.

[0034] 3. In this invention, during the grinding of the steel structure, the dust collector blows air towards the air outlet through the dust collection fan installed in the dust collection box, creating a negative pressure inside the dust collection box. This allows the dust generated during grinding to be absorbed into the dust collection box through the dust collection pipe frame. Furthermore, the rust in the air is filtered through the filter plate and air filter element installed in the dust collection box, thereby reducing the dust generated during rust grinding.

[0035] 4. In this invention, a third motor installed on the frame drives a rotating shaft and a wire grinding head to grind the paint on the steel structure, thereby removing the anti-rust paint that has been used for a long time on the steel structure.

[0036] Compared to existing technologies, this equipment is easy to move and grind automatically on steel structures, effectively reducing dust generated by grinding rust and minimizing physical harm to operators. Attached Figure Description

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0038] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0039] Figure 2This is a three-dimensional structural diagram of the grinding mechanism, moving mechanism, dust removal mechanism, and paint removal mechanism of the present invention;

[0040] Figure 3 This is a three-dimensional structural diagram of the polishing mechanism and paint removal mechanism of the present invention;

[0041] Figure 4 This is a three-dimensional structural schematic diagram of the grinding mechanism of the present invention in cross-section;

[0042] Figure 5 This is a three-dimensional structural diagram of the moving mechanism, grinding head, moving wheel, transmission wheel, transmission belt and sliding shaft of the present invention;

[0043] Figure 6 This is a three-dimensional structural diagram of the dust removal mechanism of the present invention;

[0044] Figure 7 This is a three-dimensional structural diagram of the frame and paint removal mechanism of the present invention.

[0045] In the diagram: 1. Steel structure; 2. Frame; 3. Grinding frame; 4. Tension spring; 5. Grinding shaft; 6. Grinding head; 7. Moving wheel; 8. Dust collection box; 9. Rotating sleeve; 10. Transmission wheel; 11. Transmission belt; 12. Sliding shaft; 13. First motor; 14. First electric cylinder; 15. Moving frame; 16. Connecting frame; 17. Second motor; 18. Filter plate; 19. Dust suction pipe frame; 20. Dust suction head; 21. Dust suction fan; 22. Air filter; 23. Third motor; 24. Rotating shaft; 25. Steel wire grinding head; 26. Rubber layer; 27. Handle; 28. Sealed door. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figures 1-7 As shown, this embodiment proposes a mobile steel bridge edge grinding device, including a steel structure 1, and further including: a frame 2, a grinding frame 3, a grinding mechanism, a moving mechanism and a dust removal mechanism. The frame 2 is set on the steel structure 1, the grinding frame 3 is slidably set on the frame 2, and a tension spring 4 is provided between the frame 2 and the grinding frame 3.

[0048] The grinding mechanism is mounted on the grinding frame 3. The grinding mechanism includes a grinding shaft 5, which is rotatably mounted inside the grinding frame 3. Two grinding heads 6 are mounted inside the grinding frame 3 for grinding the edges of the steel structure 1. The grinding mechanism also includes a rotating sleeve 9, a sliding shaft 12, a first motor 13, and a first electric cylinder 14. The rotating sleeve 9 is rotatably mounted on the grinding frame 3. Both the rotating sleeve 9 and the grinding shaft 5 are equipped with transmission wheels 10. A transmission belt 11 connects the two transmission wheels 10. The sliding shaft 12 is slidably mounted on the rotating sleeve 9. The grinding heads 6 are mounted on the sliding shaft 12. The first motor 13 is mounted on the grinding frame 3. The grinding shaft 5 is located at the output end of the first motor 13. The first electric cylinder 14 is mounted on the grinding frame 3 via a mounting bracket. The sliding shaft 12 is located at the output end of the first electric cylinder 14.

[0049] When grinding the steel structure 1, the operator first pulls the two handles 27 in opposite directions, thereby expanding the two grinding frames 3. When the two grinding frames 3 expand to a width greater than that of the steel structure 1, the two grinding frames 3 are placed across the steel structure 1. Then, the handles 27 are released, and the two grinding frames 3 are pulled closer together by the tension spring 4, thus fitting the equipment onto the steel structure 1. Then, the first electric cylinder 14 on the mounting frame drives the sliding shaft 12 to extend. When the sliding shaft 12 extends, it slides within the rotating sleeve 9, thereby causing the grinding head 6 on the sliding shaft 12 to contact the steel structure 1. Then, the first motor 13 on the grinding frame 3 drives the grinding shaft 5 to rotate. When the grinding shaft 5 rotates, it drives the transmission wheel 10 to rotate. The transmission belt 11 drives the sliding shaft 12 and the rotating sleeve 9 to rotate within the grinding frame 3, thereby driving the grinding head 6 to rotate. Thus, the grinding head 6 and the grinding shaft 5 work together to grind the rust on the edge of the steel structure 1.

[0050] The moving mechanism is set on the grinding frame 3. The moving mechanism includes a moving wheel 7, which is set on the grinding frame 3 and is used to drive the grinding frame 3 to move on the steel structure 1. The moving mechanism also includes a moving frame 15, a connecting frame 16, and a second motor 17. The moving frame 15 is set on the output end of the first electric cylinder 14. The connecting frame 16 is set on the moving frame 15. The moving wheel 7 is rotatably set inside the connecting frame 16. The second motor 17 is set on the connecting frame 16. The output end of the second motor 17 passes through the connecting frame 16 and is fixedly connected to the moving wheel 7.

[0051] When the first electric cylinder 14 descends, it drives the movable frame 15 set at the output end of the first electric cylinder 14 to descend. When the movable frame 15 descends, it drives the connecting frame 16 set on the movable frame 15 to descend. When the connecting frame 16 descends, it drives the movable wheel 7 set inside the connecting frame 16 to contact the steel structure 1. The second motor 17 set on the connecting frame 16 drives the movable wheel 7 to rotate on the steel structure 1, thereby driving the grinding frame 3 to move on the steel structure 1, thereby realizing the simultaneous movement and grinding of the edge of the steel structure 1.

[0052] The dust removal mechanism is installed on the grinding frame 3. The dust removal mechanism includes a dust collection box 8, which is installed on the grinding frame 3 and is used to collect the dust generated during grinding. The dust removal mechanism also includes a filter plate 18, a suction pipe frame 19, a suction fan 21, and an air filter element 22. The filter plate 18 is installed inside the dust collection box 8. The suction pipe frame 19 is connected to the dust collection box 8 and a suction head 20 is connected to the suction pipe frame 19. The suction fan 21 is installed inside the dust collection box 8. The air inlet of the dust collection box 8 faces the filter plate 18. The air filter element 22 is installed inside the dust collection box 8. An air outlet is opened on the dust collection box 8.

[0053] During the grinding of steel structure 1, rust dust is easily generated. The dust collector 21 installed in the dust collector 8 blows air to the air outlet, thereby creating a negative pressure in the dust collector 8. The dust collector 8 is then drawn into the dust collector 8 by the dust collection pipe frame 19 and the dust collection head 20 connected to the dust collector 8. The rust dust is then filtered by the filter plate 18 installed in the dust collector 8. When the filtered air needs to be blown out of the dust collector 8 through the air outlet, the air quality is purified by the air filter element 22 installed in the dust collector 8.

[0054] The frame 2 is equipped with a paint removal mechanism, which includes a third motor 23, a rotating shaft 24 and a wire grinding head 25. The third motor 23 is mounted on the frame 2, the rotating shaft 24 is mounted on the output end of the third motor 23, and the wire grinding head 25 is mounted on the rotating shaft 24.

[0055] When it is necessary to remove the anti-rust paint on the steel structure 1 after long-term use, the third motor 23 set on the frame 2 drives the rotating shaft 24 to rotate, thereby driving the steel wire grinding head 25 set on the rotating shaft 24 to grind the anti-rust paint on the steel structure 1, so as to facilitate the spraying of new anti-rust paint.

[0056] The movable wheel 7 is provided with a rubber layer 26, and the rubber layer 26 has anti-slip grooves to prevent the movable wheel 7 from slipping when moving.

[0057] The dust collection box 8 is equipped with a handle 27 so that the operator can pull the two grinding frames 3 apart and straddle the steel structure 1.

[0058] In this embodiment, the operating principle of a mobile steel bridge edge grinding device is as follows:

[0059] When grinding is required on the steel structure 1, the operator first pulls the two handles 27 in opposite directions, thereby expanding the two grinding frames 3. When the two grinding frames 3 expand to a width greater than that of the steel structure 1, the two grinding frames 3 are placed across the steel structure 1. Then, the handles 27 are released, and the two grinding frames 3 are pulled closer together by the tension spring 4, thus fitting the equipment onto the steel structure 1. Then, the first electric cylinder 14 on the mounting frame drives the sliding shaft 12 to extend. When the sliding shaft 12 extends, it slides within the rotating sleeve 9, thereby causing the grinding head 6 on the sliding shaft 12 to contact the steel structure 1. Then, the first motor 13 on the grinding frame 3 drives the grinding shaft 5 to rotate. When the grinding shaft 5 rotates, it drives the transmission wheel 10 to rotate. The transmission belt 11 drives the sliding shaft 12 and the rotating sleeve 9 to rotate within the grinding frame 3, thereby driving the grinding head 6 to rotate. Thus, the grinding head 6 and the grinding shaft 5 work together to grind the rust on the edge of the steel structure 1.

[0060] When the first electric cylinder 14 descends, it drives the moving frame 15 set at the output end of the first electric cylinder 14 to descend. When the moving frame 15 descends, it drives the connecting frame 16 set on the moving frame 15 to descend. When the connecting frame 16 descends, it drives the moving wheel 7 set inside the connecting frame 16 to contact the steel structure 1. The second motor 17 set on the connecting frame 16 drives the moving wheel 7 to rotate on the steel structure 1, thereby driving the grinding frame 3 to move on the steel structure 1. This enables the grinding of the edge of the steel structure 1 while moving, which can completely replace manual grinding.

[0061] Dust removal is necessary because rust dust is easily generated during the grinding of steel structure 1. The dust collector 21 installed inside the dust collector 8 blows air towards the air outlet, creating a negative pressure inside the dust collector 8. This negative pressure is then absorbed into the dust collector 8 through the suction pipe frame 19 and suction head 20 connected to the dust collector 8. The rust is then filtered by the filter plate 18 installed inside the dust collector 8. When the filtered air needs to be blown out of the dust collector 8 through the air outlet, the air quality is purified by the air filter element 22 installed inside the dust collector 8. When it is necessary to clean the rust inside the dust collector 8 after absorption, the dust collector 8 is equipped with an openable sealing door 28. Opening the sealing door 28 allows for the cleaning of the rust.

[0062] For paint removal, when it is necessary to remove the anti-rust paint on the steel structure 1 after long-term use, the third motor set on the frame 2 drives the rotating shaft 24 to rotate, thereby driving the steel wire grinding head 25 set on the rotating shaft 24 to grind the anti-rust paint on the steel structure 1, so as to facilitate the spraying of new anti-rust paint.

[0063] It should also be added that the grinding head 6 and the grinding shaft 5 can be made of a relatively soft sandpaper material, which can better fit the surface of the steel structure that needs to be ground.

[0064] When grinding the steel structure, the grinding head 6 is driven by the first electric cylinder 14 to come into contact with the steel structure 1. The moving frame 15 also moves with the grinding head 6, so that the moving wheel 7 contacts and rotates with the steel structure 1. Through the synchronous rotation of the grinding head 6 and the grinding shaft 5, the grinding head 6 can move on the steel structure 1 while grinding, realizing grinding while moving. When grinding stops, the first electric cylinder 14 retracts, and the moving frame 15 is also retracted, so that the equipment can be easily removed.

[0065] The slide shaft 12 has two square protrusions, and the rotating sleeve 9 has grooves that match the square protrusions. Therefore, the slide shaft 12 can be raised and lowered on the grinding frame 3 while rotating, and the grinding head 6 can be raised and lowered while rotating rapidly.

[0066] When the grinding head 6 grinds the edge of the steel structure 1, the area between the two grinding heads 6 is not easy to grind. At this time, the wire grinding head 25 is used in conjunction with the two grinding heads 6 to grind the middle area of ​​the steel structure 1, so as to achieve one-time grinding of the steel structure 1 without the need for repeated grinding of the steel structure 1, which is time-consuming and laborious.

[0067] The grinding frame 3 has a U-shaped design, which can better fit the two sides of the edge of the steel structure 1, thus achieving grinding of the edge of the steel structure 1 without dead angles.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile steel bridge edge grinding device, comprising a steel structure (1), characterized in that, Also includes: Frame (2), which is mounted on the steel structure (1); A grinding frame (3) is slidably mounted on the frame (2), and a tension spring (4) is provided between the frame (2) and the grinding frame (3). A grinding mechanism is provided on the grinding frame (3). The grinding mechanism includes a grinding shaft (5), which is rotatably disposed inside the grinding frame (3). Two grinding heads (6) are provided inside the grinding frame (3) for grinding the edges of the steel structure (1). A moving mechanism is provided on the grinding frame (3). The moving mechanism includes a moving wheel (7) which is provided on the grinding frame (3) and is used to drive the grinding frame (3) to move on the steel structure (1). A dust removal mechanism is provided on the grinding frame (3). The dust removal mechanism includes a dust collection box (8), which is provided on the grinding frame (3) and is used to collect the dust generated during grinding. The polishing mechanism also includes: Rotating sleeve (9), the rotating sleeve (9) is rotatably mounted on the grinding frame (3), and both the rotating sleeve (9) and the grinding shaft (5) are provided with transmission wheels (10), and the two transmission wheels (10) are connected by a transmission belt (11). A sliding shaft (12) is slidably disposed on the rotating sleeve (9), and the grinding head (6) is disposed on the sliding shaft (12); The first motor (13) is mounted on the grinding frame (3), and the grinding shaft (5) is mounted on the output end of the first motor (13). The first electric cylinder (14) is mounted on the grinding frame (3) via a mounting bracket, and the sliding shaft (12) is located at the output end of the first electric cylinder (14). The mobile mechanism also includes: A movable frame (15) is disposed at the output end of the first electric cylinder (14); A connecting frame (16) is provided on the movable frame (15), and the movable wheel (7) is rotatably provided inside the connecting frame (16); The second motor (17) is mounted on the connecting frame (16), and the output end of the second motor (17) passes through the connecting frame (16) and is fixedly connected to the moving wheel (7); The dust removal mechanism also includes: A filter plate (18) is disposed inside the dust collection box (8); A vacuum tube frame (19) is connected to the dust collection box (8), and a vacuum head (20) is connected to the vacuum tube frame (19). A vacuum cleaner (21) is installed inside the dust collection box (8), with the air inlet of the dust collection box (8) facing the filter plate (18). An air filter element (22) is disposed inside the dust collection box (8), and an air outlet is provided on the dust collection box (8); The frame (2) is provided with a paint removal mechanism, which includes: A third motor (23) is mounted on the frame (2); A rotating shaft (24) is disposed at the output end of the third motor (23); A wire grinding head (25) is mounted on the rotating shaft (24).

2. The mobile steel bridge edge grinding device according to claim 1, characterized in that, The movable wheel (7) is provided with a rubber layer (26), and the rubber layer (26) is provided with anti-slip grooves.

3. The mobile steel bridge edge grinding device according to claim 1, characterized in that, The dust collection box (8) is equipped with a handle (27).

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