Portable laser device for cleaning U rib

Abstract

The portable laser device comprises an adjusting device and a moving device, the moving device is arranged at the top of the U-shaped rib in a sliding mode, the adjusting device comprises a transverse moving rack, the transverse moving rack penetrates through the moving device, and transverse moving connecting blocks are symmetrically installed at the two ends, located on the outer side of the moving device, of the transverse moving rack. Longitudinal moving connecting blocks are hinged to the same sides of the transverse moving connecting blocks at the two ends respectively, longitudinal moving racks are installed in the longitudinal moving connecting blocks, locking rings are arranged at the bottoms of the longitudinal moving racks, and laser equipment is installed in the locking rings. The portable laser device provided by the utility model is assembled in a modular manner, can be quickly disassembled and assembled, and is suitable for U ribs with various widths and various storage sites; handheld laser equipment is adopted for cleaning the U ribs, the laser coverage area is large, the side faces of the multiple U ribs can be cleaned at a time, additional feeding, positioning and discharging are not needed, and the cleaning efficiency is improved; the device is compact in structural design, reasonable in layout, small in overall size, free of occupying extra space and high in cost performance.

Description

Technical Field

[0001] This utility model relates to a portable laser device, and more particularly to a portable laser device for cleaning U-ribs. Background Technology

[0002] During the manufacturing process of steel bridge deck units, it is usually necessary to spray pre-treatment paint onto the steel plates to protect them and prevent corrosion of the base material. However, when assembling the U-ribs of the deck units, in order to ensure the welding quality of the deck units, it is necessary to clean the welding areas of the U-ribs to remove oxides, paint, and other impurities from the surface of the welding area.

[0003] The traditional cleaning method involves manual grinding with a handheld angle grinder. This method is not only inefficient and labor-intensive, but the dust and noise generated during the grinding process can also affect the health of the operators.

[0004] There are two main types of existing laser cleaning technologies for U-ribs. One type involves mobile laser cleaning equipment with a fixed U-rib, i.e., using handheld laser cleaning equipment. Although this type of equipment does not require high-intensity manual labor, the operator still needs to hold the laser emitter and walk along one side of the U-rib while performing laser cleaning. Because the appropriate focal length cannot be maintained at all times during the cleaning process, the laser intensity is unstable, the cleaning operation cannot be completed in one go, and the cleaning efficiency is low.

[0005] Secondly, the laser cleaning equipment is fixed, while the U-ribs are movable. For example, patent application number CN202211280275.6 discloses an integrated U-rib laser cleaning production line structure, including an equipment foundation, ground rails, U-rib storage platforms, and conveyor lines. While this patent significantly reduces the labor intensity of operators, it requires loading, positioning, and unloading of the U-ribs, and can only clean single U-ribs, resulting in low cleaning efficiency. Furthermore, this type of production line occupies a large area and has high equipment costs. Utility Model Content

[0006] Purpose of the utility model: The purpose of this utility model is to provide a portable laser device for cleaning U-ribs, which improves the cleaning efficiency of U-ribs, reduces the labor intensity of operators, and avoids occupying additional space.

[0007] Technical solution: This utility model includes an adjustment device and a moving device. The moving device is slidably disposed on the top of the U-rib. The adjustment device includes a transverse rack that passes through the moving device. Transverse connecting blocks are symmetrically installed at both ends of the transverse rack on the outside of the moving device. Longitudinal connecting blocks are hinged to the same side of the transverse connecting blocks at both ends. A longitudinal rack is installed inside the longitudinal connecting blocks. A locking ring is provided at the bottom of the longitudinal rack. A laser device is installed inside the locking ring.

[0008] The mobile device includes side plates and end plates, which are welded and fixed together. A drive axle and a driven axle pass through the side plates. Drive units are mounted at both ends of the drive axle. Connecting arms are mounted on opposite sides of the end plates, and the two connecting arms are connected by a guide mounting plate. Guide wheels are mounted at both ends of the bottom of the guide mounting plate, distributed on both sides of the U-rib. Driven by a synchronous motor, the entire mobile device moves along the length of the U-rib. A certain distance is maintained between the guide wheels and the sides of the U-rib to ensure that the wheel assembly of the mobile device remains in the middle position of the U-rib.

[0009] The upper part of the connecting arm has an elongated hole, and the large surface of the end plate has multiple threaded holes. The connecting arm is fixed to the end plate by bolts. By combining bolts at different positions, the distance between the two connecting arms can be adjusted, thereby adjusting the distance between the guide wheel and the side of the U-rib. This method is applicable to U-ribs of different widths.

[0010] Both the active and passive axles are equipped with wheels and ring magnets. The ring magnets and wheels are in contact with each other, and the wheel treads have magnetic attraction, which keeps the moving device attached to the top surface of the U-rib and prevents the moving device from tipping over during movement.

[0011] The active and passive wheel axles are made of non-magnetic materials, which can effectively prevent the wheel axles from becoming magnetized, thus greatly reducing the magnetic attraction of the wheel assembly.

[0012] A transverse rack runs through the side plates, and the transverse rack is located between the driving wheel axle and the driven wheel axle.

[0013] The transverse rack passes through the inner hole of the transverse connecting block, and the pinion inside the transverse connecting block meshes with the rack of the transverse rack. Rotating the handle of the transverse connecting block can drive the handheld laser device to move laterally, adjusting the lateral distance between the laser and the U-rib.

[0014] The longitudinal moving rack passes through the inner hole of the longitudinal moving connecting block, and the pinion inside the longitudinal moving connecting block meshes with the rack of the longitudinal moving rack. Rotating the handle of the longitudinal moving connecting block can drive the handheld laser device to move longitudinally, adjusting the longitudinal distance between the laser and the U-rib.

[0015] The laser equipment is mirrored on both sides of the adjustment device, allowing for simultaneous cleaning of both sides of the U-rib.

[0016] Beneficial effects: The portable laser device of this utility model adopts modular assembly, which can realize quick assembly and disassembly, and is suitable for U-ribs of various widths and various storage sites; the handheld laser equipment is used to clean U-ribs, with a large laser coverage area, and multiple U-ribs can be cleaned at once, without the need for additional loading, positioning and unloading, thus improving cleaning efficiency; the structure is compact, the layout is reasonable, the overall size is small, no additional space is required, and the cost performance is high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment device of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the mobile device of this utility model;

[0020] Figure 4 This is a top view of the mobile device of this utility model;

[0021] Figure 5 This is a diagram illustrating the application scenario of this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the portable laser device for cleaning U-ribs in this embodiment includes an adjustment device 2 and a moving device 3, as follows: Figure 5 As shown, the mobile device 3 is slidably mounted on the top of the U-rib, and the adjusting device 2 passes through the mobile device 3. Both ends of the adjusting device 2 are located on the outside of the U-rib, and a laser device 1 is installed at the bottom of the adjusting device 2. The U-rib is cleaned by the laser devices 1 on both sides of the U-rib. The laser device 1 is a handheld laser device, and the emitted laser is about 100 to 120 mm wide, covering a large area, and can clean the sides of 4 to 5 U-ribs at a time.

[0024] like Figure 2 As shown, the adjusting device 2 includes a longitudinal rack 4, a longitudinal connecting block 5, a transverse connecting block 6, a transverse rack 7, and a locking ring 8. The transverse rack 7 passes through the moving device 3. Transverse connecting blocks 6 are symmetrically installed at both ends of the transverse rack 7 on the outer side of the moving device 3. The transverse rack 7 passes through the inner hole of the transverse connecting block 6, and the pinion gear inside the transverse connecting block 6 meshes with the rack of the transverse rack 7. Longitudinal connecting blocks 5 are hinged to the same side of the transverse connecting blocks 6 on both sides. They are hinged together by hand-tightening bolts passing through the inner holes of the ear plates of the longitudinal connecting blocks 5 and the transverse connecting blocks 6. A longitudinal rack 4 is installed inside the longitudinal connecting block 5, passing through the inner hole of the longitudinal connecting block 5, and the pinion gear inside the longitudinal connecting block 5 meshes with the rack of the longitudinal rack 4. The bottom of the longitudinal rack 4 is provided with a locking ring 8, which is welded and fixed to the lower end face of the longitudinal rack 4. A laser device 1 is installed inside the locking ring 8. The laser device 1 can rotate around the length of the U-rib to adjust the angle between the laser and the side of the U-rib.

[0025] The handle of the rotating transverse connecting block 6 can drive the handheld laser device to move laterally, adjusting the lateral distance between the laser and the U-rib; the handle of the rotating longitudinal connecting block 5 can drive the handheld laser device to move longitudinally, adjusting the longitudinal distance between the laser and the U-rib; the rotating longitudinal connecting block 5 can drive the handheld laser device to rotate around the transverse rack 7, adjusting the angle between the laser and the side of the U-rib.

[0026] like Figure 3 and Figure 4 As shown, the moving device 3 includes a guide wheel 9, a side plate 10, a drive device 11, an end plate 12, a connecting arm 13, a guide mounting plate 14, a drive axle 15, a ring magnet 16, a wheel 17, and a driven axle 18. The side plate 10 and the end plate 12 are fixed by welding to form a rigid frame. A transverse rack 7, the drive axle 15, and the driven axle 18 pass through the side plates 10 on both sides. The transverse rack 7 is located between the drive axle 15 and the driven axle 18. The drive device 11 is installed at both ends of the drive axle 15 and is fixed to the large surface of the side plate 10 by bolts. Deep groove ball bearings are installed in the inner holes at both ends of the side plate 10. The drive axle 15 passes through the inner hole of one deep groove ball bearing. The stepped surface of the end of the drive axle 15 presses against the end face of the deep groove ball bearing, and the other end face of the deep groove ball bearing presses against the positioning stepped surface of the drive device 11, thus fixing the drive axle 15 between the two side plates 10. The drive unit 11 output shaft and the drive wheel shaft 15 are driven by a key. The driven wheel shaft 18 passes through the inner hole of the deep groove ball bearing on the other side, and the driven wheel shaft 18 is fixed between the two side plates 10 by shaft retaining rings installed at both ends.

[0027] Both the driving axle 15 and the driven axle 18 are equipped with wheels 17 and ring magnets 16. The outer surface of the wheel 17 has a set screw hole through which the set screw passes, clamping the driving axle 15 and the driven axle 18. The ring magnet 16 and the wheel 17 are in contact with each other, and the tread surface of the wheel 17 has a magnetic attraction, ensuring that the moving device remains attached to the top surface of the U-rib, preventing it from tipping over during movement. The driving axle 15 and the driven axle 18 are made of non-magnetic material, effectively preventing the axles from becoming magnetized and significantly reducing the magnetic attraction of the wheel assembly.

[0028] Connecting arms 13 are installed on opposite sides of the two end plates 12. Each connecting arm 13 has an elongated hole at its upper part for bolts to pass through. Multiple threaded holes are formed on the large surface of the end plate 12, and the connecting arms 13 are fixed to the end plate 12 with bolts. By combining bolts at different positions, the distance between the two connecting arms 13 can be adjusted, thereby adjusting the distance between the guide wheels 9 and the side of the U-rib, making it suitable for U-ribs of different widths. The front and rear connecting arms 13 are connected by a guide mounting plate 14, located below the side plate 10. Guide wheels 9 are installed at both the front and rear ends of the bottom of the guide mounting plate 14, distributed on both sides of the U-rib. Driven by a synchronous motor, the entire moving device moves along the length of the U-rib. A certain gap is maintained between the guide wheels 9 and the side of the U-rib to ensure that the wheel assembly of the moving device is always in the middle position of the U-rib.

[0029] Usage: Place the portable laser device of this invention on the top surface of the U-rib. First, loosen the bolts on the connecting arm 13 and adjust the distance between the connecting arms to maintain a certain distance between the guide wheel 9 and the side of the U-rib. Then, tighten the bolts on the connecting arm 13. Next, start the laser device 1. Adjust the focal length of the laser by combining and adjusting the longitudinal connecting block 5 and the transverse connecting block 6 to maximize the laser intensity. Start the drive device 11, and the moving device 3 begins to move along the length direction on the U-rib. Simultaneously, the laser device 1 performs cleaning operations on both sides of the U-rib.

Claims

1. A portable laser device for cleaning U-ribs, characterized in that, The device includes an adjustment device and a moving device. The moving device is slidably mounted on the top of the U-rib. The adjustment device includes a transverse rack that passes through the moving device. Transverse connecting blocks are symmetrically installed at both ends of the transverse rack on the outside of the moving device. Longitudinal connecting blocks are hinged to the same side of the transverse connecting blocks at both ends. A longitudinal rack is installed inside the longitudinal connecting blocks. A locking ring is provided at the bottom of the longitudinal rack. A laser device is installed inside the locking ring.

2. The portable laser device for cleaning U-ribs according to claim 1, characterized in that, The moving device includes side plates and end plates, which are welded and fixed together. A drive wheel axle and a driven wheel axle pass through the side plates on both sides. A drive device is installed at both ends of the drive wheel axle. A connecting arm is installed on the opposite side of the two end plates. The two connecting arms are connected by a guide mounting plate. Guide wheels are installed at both ends of the bottom of the guide mounting plate. The guide wheels are distributed on both sides of the U-rib.

3. The portable laser device for cleaning U-ribs of claim 2, wherein, The upper part of the connecting arm has an elongated hole, and the large surface of the end plate has multiple threaded holes. The connecting arm is fixed to the end plate by bolts.

4. The portable laser device for cleaning U-ribs of claim 2, wherein, Both the driving axle and the driven axle are equipped with wheels and ring magnets, with the ring magnets and wheels in contact with each other.

5. The portable laser device for cleaning U-ribs of claim 4, wherein, The active and passive wheel axles are made of non-magnetic materials.

6. The portable laser apparatus for cleaning U-ribs of claim 2, wherein, A transverse rack runs through the side plates, and the transverse rack is located between the driving wheel axle and the driven wheel axle.

7. The portable laser device for cleaning U-ribs of claim 6, wherein, The transverse rack passes through the inner hole of the transverse connecting block, and the pinion inside the transverse connecting block meshes with the rack of the transverse rack.

8. The portable laser device for cleaning U-ribs of claim 1, wherein, The longitudinal rack passes through the inner hole of the longitudinal connecting block, and the pinion inside the longitudinal connecting block meshes with the rack of the longitudinal rack.

9. The portable laser device for cleaning U-ribs of claim 1, wherein, The laser equipment is mirrored on both sides of the adjustment device.

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