A suspension conveying device for steel structures

Abstract

The application discloses a kind of steel structure suspension conveying devices, belong to steel structure processing conveying technical field.It includes suspension assembly, magnetic suction assembly and cleaning dust collection assembly.Suspension assembly realizes the stable walking and spacing adjustment of device on building track, magnetic suction assembly completes the accurate hoisting of steel plate by adjustable electric telescopic rod and electromagnetic chuck, and cleaning dust collection assembly realizes the synchronous cleaning and dust collection of steel plate surface by steel wire brush roller and side-by-side arranged dust collection assembly.The problems that steel plate is easy to deform, cleaning efficiency is low, dust pollution is serious and cannot be adapted to curved steel plate in the process of traditional steel structure conveying are solved, the integrated conveying and surface cleaning of steel structure steel plate are realized, and the processing efficiency and product quality are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of steel structure processing and conveying technology, and specifically to a suspended conveying device for steel structures. Background Technology

[0002] In the processing and production of steel structures, especially high-speed rail steel plates, the conveying and surface cleaning of steel plates are essential steps. Traditional steel plate conveying methods mostly use ground roller conveyors, which require a large amount of workshop floor space and cannot be seamlessly integrated with subsequent aerial processing steps. Existing overhead conveyor systems mostly use single-point or multi-point rigid suspension, and the magnetic suction points are usually laid out based on experience. When hoisting large-sized and heavy high-speed rail steel plates, bending deformation is easily caused, affecting the accuracy of subsequent processing.

[0003] Meanwhile, traditional steel plate surface cleaning often involves manual hand-held wire brushes or separate cleaning equipment, which is not only labor-intensive and inefficient, but also makes it difficult to guarantee cleaning quality, easily resulting in oxide scale residue. Although some overhead conveyor devices integrate cleaning functions, the cleaning brush rollers are mostly of a single, integral structure, which cannot adapt to the natural curvature and welding deformation of high-speed rail steel plates, leading to uneven cleaning. Furthermore, the dust collection components are mostly fixed structures and cannot move synchronously with the brush rollers, easily causing dust leakage and polluting the workshop environment.

[0004] Therefore, there is an urgent need for a suspended conveyor device for steel structures that can stably lift and transport steel plates, prevent deformation, and simultaneously provide efficient cleaning and simultaneous dust extraction. Summary of the Invention

[0005] The present invention aims to solve the problems of easy deformation, low cleaning efficiency and poor dust collection effect of steel plate conveying in the prior art, and provides a suspended conveying device for steel structures.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A suspended conveying device for steel structures includes a suspension assembly, a magnetic adsorption assembly, and a cleaning and vacuuming assembly. The suspension assembly includes a suspension mounting frame and a sliding frame. The top of the suspension mounting frame is equipped with a suspension conveying mechanism, and the bottom of the suspension mounting frame has several sliding groove mounting supports. Each sliding groove mounting support has a groove, and a first slider is slidably installed within the groove. The first slider has a through hole. The sliding frame is movably mounted on the suspension mounting frame. The magnetic adsorption assembly includes a first electric telescopic rod matching the number of the first sliders, an electromagnetic chuck, and an electromagnetic controller. The first electric telescopic rod is fixed within the through hole of the first slider, and its output end passes through the through hole and is hinged to the electromagnetic chuck. The electromagnetic controller is mounted on the suspension mounting frame. The cleaning and vacuuming assembly includes a guide rod, a second electric telescopic rod, a wire brush roller, and a vacuuming assembly. The guide rod is slidably connected to the sliding frame. The second electric telescopic rod is mounted on the sliding frame. The two sides of the wire brush roller are connected to the second electric telescopic rod and the guide rod through support plates. The vacuuming assembly is mounted on the support plates. The vacuuming assembly is arranged side by side with the wire brush roller, and the vacuuming assembly is aligned with the cleaning area of ​​the wire brush roller.

[0007] Furthermore, the bottom of the suspension bracket is provided with four sliding groove mounting supports. Two adjacent first sliders along the width direction of the groove opening of the sliding groove mounting support are connected by a connecting rod, and the connecting rod is provided with a threaded through hole in the middle.

[0008] Furthermore, a screw with positive and negative threads is installed at the bottom of the suspension bracket. The screw is connected to the threaded through hole of the connecting rod. A screw motor is provided in the middle of the screw. The screw motor drives the screw to move the connecting rods on both sides closer or further away.

[0009] Furthermore, the distance L between the two first electric telescopic rods after the lead screw adjustment satisfies the calculation formula: ; In the formula: L is the center-to-center distance between the two first electric telescopic rods. B is the length of the workpiece steel plate. β is the influence coefficient of the layout spacing, which is taken as 1.1~1.3.

[0010] Furthermore, the suspension fixing frame is provided with a guide member at the connection of the sliding frame, a rack is provided on the lower side of the guide member, a support plate of the sliding frame is provided on the upper side of the guide member, and an outwardly protruding limiting plate is provided on the inner side of the guide member.

[0011] Furthermore, a vertical roller assembly is provided at the contact position between the sliding frame and the support plate on the upper side of the guide member, an active drive gear is provided at the contact position between the sliding frame and the rack on the lower side of the guide member, and a horizontal roller assembly is provided below the inner convex limiting plate of the sliding frame and the guide member, the horizontal roller assembly abutting against the inner side of the guide member.

[0012] Furthermore, the suspended conveying mechanism includes a set of traveling wheels and a servo drive motor. The traveling wheels are rolled and supported on the building track, and the servo drive motor drives the traveling wheels to roll.

[0013] Furthermore, the wire brush roller includes a rigid main shaft and multiple sliding bushings. An active connecting shaft is provided in the middle of the rigid main shaft. The active connecting shaft is connected to the support plate through a bearing. A drive motor for driving the active connecting shaft to rotate is installed on the outside of the support plate. A continuous groove is provided along the axial direction on the outer surface of the rigid main shaft. The sliding bushings are provided with protrusions that match the groove. Multiple sliding bushings are inserted into the rigid main shaft along the groove and fixed in a limited position. A brush body unit is provided on the outer surface of the sliding bushing.

[0014] Furthermore, the multiple sliding bushings are composed of the same diameter or different diameters, and the combined brush body unit can form different curvatures to match the workpiece steel plate to be cleaned.

[0015] Furthermore, the brush body unit is made of metal wire, which improves the surface roughness of the workpiece steel plate during the rotation cleaning process.

[0016] Beneficial effects

[0017] 1. The magnetic suction point is precisely designed based on the minimum deflection mechanical model of a simply supported beam with symmetrical cantilever at both ends. This eliminates the traditional method of magnetic suction point layout that relies on manual experience, effectively ensuring the flatness requirements of the steel plate during transportation and facilitating dust collection and cleaning.

[0018] 2. The modular segmented steel wire brush roller structure can be adopted, and different arc cleaning contours can be flexibly formed by the free combination of sliding bushings of different diameters, which solves the pain points of poor surface fit, many cleaning blind spots, and uneven pressure distribution of traditional integral brush rollers.

[0019] 3. The integrated design of cleaning and dust collection components enables cleaning and impurity collection of steel plates during the transfer process. The dust collection port is aligned with the real-time cleaning area of ​​the wire brush roller, and the oxide scale, iron filings and dust generated during cleaning can be sucked away immediately, significantly improving the overall production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure Two ; Figure 3 This is a top view of an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure Three Figure 5 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure Four ; Figure 6 for Figure 5 A magnified view of part M; Figure 7 This is a schematic diagram of the installation of the cleaning and vacuuming assembly according to an embodiment of the present invention; Figure 8 for Figure Seven A magnified view of N in the middle; Figure 9 This is a side view of an embodiment of the present invention; Figure 10 for Figure Nine A magnified view of a portion of P; Figure 11 This is a schematic diagram of the installation of the magnetic adsorption assembly according to an embodiment of the present invention; Figure 12 This is a composition diagram of the wire brush roller according to an embodiment of the present invention; Figure 13 for Figure Four A magnified view of part A in the image; Figure 14 for Figure Five A magnified view of part B in the image.

[0021] The components include: 1. Suspension assembly; 11. Suspension fixing frame; 111. Suspension conveying mechanism; 1111. Walking wheel set; 1112. Servo drive motor; 112. Slide mounting support; 1121. Slot; 1122. First slider; 1123. Through hole; 113. Guide component; 1131. Rack; 1132. Support plate; 1133. Outwardly protruding limiting plate; 114. Positive and negative threaded screw; 115. Screw motor; 12. Sliding frame; 121. Vertical roller assembly; 122. Active drive gear. 1. Horizontal roller assembly; 1. Horizontal roller assembly; 1. Horizontal roller groove; 2. Magnetic suction assembly; 2. First electric telescopic rod; 2. Electromagnetic chuck; 2. Electromagnetic controller; 2. Connecting rod; 2. Threaded through hole; 3. Cleaning and vacuuming assembly; 3. Guide rod; 3. Second electric telescopic rod; 3. Wire brush roller ... Detailed Implementation

[0022] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0023] See Figures 1 to 12 According to the present invention, a suspended conveying device for steel structures includes a suspension assembly 1, a magnetic adsorption assembly 2, and a cleaning and dust collection assembly 3. The suspension assembly 1 includes a suspension fixing frame 11 and a sliding frame 12. The top of the suspension fixing frame 11 is provided with a suspension conveying mechanism 111, and the bottom of the suspension fixing frame 11 is provided with several sliding groove mounting supports 112. Each sliding groove mounting support 112 has a groove 1121, and a first slider 1122 is slidably installed in the groove 1121. The first slider 1122 is provided with a through hole 1123. The sliding frame 12 is movably mounted on the suspension fixing frame 11. The magnetic adsorption assembly 2 includes a first electric telescopic rod 21 matching the number of first sliders 1122, an electromagnetic chuck 22, and an electromagnetic controller 23. The first electric telescopic rod 21 is fixed in the through hole 1123 of the first slider 1122, and the output end of the first electric telescopic rod 21 passes through the through hole 1123 and is hingedly connected to the electromagnetic chuck 22. The electromagnetic controller 23 is mounted on the suspension fixing frame 11. The cleaning and vacuuming assembly 3 includes a guide rod 31, a second electric telescopic rod 32, a wire brush roller 33, and a vacuuming assembly 35. The guide rod 31 is slidably connected to the sliding frame 12. The second electric telescopic rod 32 is mounted on the sliding frame 12. The two sides of the wire brush roller 33 are connected to the second electric telescopic rod 32 and the guide rod 31 through a support plate 34. The vacuuming assembly 35 is mounted on the support plate 34. The vacuuming assembly 35 is arranged side by side with the wire brush roller 33 and is aligned with the cleaning area of ​​the wire brush roller 33.

[0024] The suspension assembly 1 provides support and a foundation for the entire device, enabling stable movement along the workshop's building tracks. It also provides an installation platform for the magnetic adsorption assembly 2 and the cleaning and vacuuming assembly 3. The suspension mounting frame 11 serves as the main load-bearing structure, ensuring the overall structural strength of the device. The suspension conveying mechanism 111 enables the device to move automatically along the building tracks. The cooperation between the slide rail mounting support 112 and the first slider 1122 allows for flexible adjustment of the spacing of the first electric telescopic rod 21 to accommodate steel plates of different sizes. The sliding frame 12 drives the cleaning and vacuuming assembly 3 to move along the length of the suspension mounting frame 11, achieving cleaning operations along the entire length of the steel plate.

[0025] The magnetic adsorption assembly 2 enables automatic lifting of steel plates. The electromagnetic chuck 22 uses electromagnetic force to attract the steel plates, ensuring a stable and reliable lifting process without damaging the steel plate surface. The first electric telescopic rod 21 adjusts the height of the electromagnetic chuck 22 to accommodate steel plates of different thicknesses. The electromagnetic controller 23 controls the power supply to the electromagnetic chuck 22, ensuring synchronization of the adsorption and release actions. The first electric telescopic rod 21 is hinged to the electromagnetic chuck 22, allowing the electromagnetic chuck 22 to swing within a certain angle to accommodate the curvature of the steel plate surface.

[0026] See Figure Thirteen and Figure Fourteen The cleaning and dust collection component 3 simultaneously cleans and collects dust from the steel plate surface. The steel wire brush roller 33 rotates to clean the oxide scale and iron filings on the steel plate surface, and the dust collection component 35 promptly sucks away the cleaned impurities to avoid dust pollution. The second electric telescopic rod 32 adjusts the contact distance between the steel wire brush roller 33 and the steel plate surface to ensure moderate cleaning pressure. The sliding frame 12 has an open slide groove 124 at the connection of the guide rod 31. The guide rod 31 is a round rod structure, and it passes through the open slide groove 124 to connect with the support plate 34. The open slide groove 124 provides sliding constraint for the guide rod 31, ensuring the smooth up-and-down movement of the steel wire brush roller 33 and preventing tilting. The dust collection component 35 is arranged side by side with the steel wire brush roller 33 and aligned with the cleaning area to achieve simultaneous cleaning and dust collection, greatly improving dust collection efficiency.

[0027] According to the present invention, a suspended conveying device for steel structures includes a suspension mounting frame 11 with four sliding groove mounting supports 112 at its bottom. Adjacent first sliders 1122 along the width direction of the groove opening 1121 of each sliding groove mounting support 112 are connected by a connecting rod 24, which has a threaded through hole 241 in the middle. The four sliding groove mounting supports 112 are symmetrically arranged to ensure uniform force distribution for magnetic attraction. The connecting rod 24 connects adjacent first sliders 1122 into a single unit, enabling synchronous movement of the two first electric telescopic rods 21 and ensuring symmetrical distribution of magnetic attraction points. The threaded through hole 241 is used to engage with a lead screw for precise adjustment of the spacing.

[0028] According to the present invention, a suspended conveying device for steel structures includes a suspension fixing frame 11 with a screw rod 114 having positive and negative threads installed at its bottom. The screw rod is connected to the threaded through hole 241 of the connecting rod 24. A screw motor 115 is located in the middle of the screw rod, and the screw motor 115 drives the screw rod to move the connecting rods 24 on both sides closer or further apart. The design of the screw rod 114 with positive and negative threads allows the connecting rods 24 on both sides to move synchronously in opposite directions when the screw motor 115 rotates forward or reverse, realizing rapid and precise adjustment of the magnetic attraction distance and adapting to steel plates of different lengths.

[0029] According to the suspended conveying device for steel structures provided by the present invention, the distance L between the two first electric telescopic rods 21 after the screw adjustment satisfies the calculation formula: ; In the formula: L is the center-to-center distance between the two first electric telescopic rods 21. B is the length of the workpiece steel plate. β is the influence coefficient of the spacing, taken as 1.1~1.3. This formula is derived based on the minimum deflection mechanical model of a simply supported beam with symmetrical cantilever at both ends. The derivation process is as follows: The high-speed rail steel plate being hoisted is equivalent to a simply supported beam with symmetrical cantilevered ends. Two electromagnetic chucks serve as simply supported supports, bearing a self-weight load q uniformly distributed along the length. Let the total length of the steel plate be B, the center distance between the two supports be L, and the cantilever length from each support to the corresponding beam end be a = (BL) / 2.

[0030] According to the deflection formula for cantilever beams in mechanics of materials, the downward deflection at the cantilever end (end of the steel plate) is: ; Where E is the elastic modulus of the steel plate, and I is the moment of inertia of the steel plate section.

[0031] The mid-span deflection of the simply supported segment is composed of two superimposed parts: the downward deflection caused by the uniformly distributed load and the upward deflection caused by the negative bending moments at both ends. The negative bending moments at both ends are generated by the self-weight of the cantilever segment, and their magnitude is... Therefore, the total deflection at mid-span of the simply supported segment is: ; For a simply supported beam with symmetrical cantilevered ends, the maximum deflection of the entire beam reaches its minimum value when the downward deflection at the cantilever end equals the downward deflection at mid-span of the simply supported section. Let... Substitute Simplifying, we get: ; make Substituting into the above equation, we obtain a quartic equation in x: ; Solving this equation yields the unique positive root that best fits the engineering requirements. ,and Therefore, the optimal support spacing under ideal conditions is: ; Considering the thickness tolerance of steel plates, material inhomogeneity, and dynamic impact loads during hoisting in actual working conditions, a spacing influence coefficient β is introduced to correct the ideal spacing, ultimately yielding the calculation formula used in practical engineering. By rationally arranging the magnetic attraction points, the maximum bending deflection of the steel plate during hoisting is minimized, effectively preventing permanent deformation of the steel plate.

[0032] B represents the actual length of the workpiece steel plate, a fundamental parameter for determining the magnetic suction spacing, directly affecting the stress distribution on the steel plate. β is the spacing influence coefficient, used to correct for the effects of steel plate thickness, material differences, and dynamic loads during hoisting on deflection in actual working conditions. When β is less than 1.1, the magnetic suction spacing is too small, resulting in excessive overhang lengths at both ends of the steel plate, leading to increased end deflection and a tendency for sagging deformation. When β is greater than 1.3, the magnetic suction spacing is too large, increasing deflection in the middle region of the steel plate, also causing bending deformation. A preferred β value of 1.2 balances the overall stress uniformity of the steel plate with hoisting stability, minimizing deformation.

[0033] Formula Design Example: For common high-speed rail carriage side panels, the steel plate length B is taken as 3000mm, and the spacing influence coefficient β is taken as 1.2. Substituting into the formula, we can obtain: ; In the actual design, 2100mm is taken as the center distance between the two first electric telescopic rods 21, which can ensure that the maximum deflection during the steel plate hoisting process is controlled within the allowable range.

[0034] According to the present invention, a suspended conveying device for steel structures includes a guide member 113 at the connection of the suspended fixing frame 11 and the sliding frame 12. A rack 1131 is provided on the lower side of the guide member 113, and a support plate 1132 for the sliding frame 12 is provided on the upper side of the guide member 113. An outwardly protruding limiting plate 1133 is provided on the inner side of the guide member 113. The guide member 113 provides guiding support for the movement of the sliding frame 12, ensuring that the sliding frame 12 moves only along the length direction of the suspended fixing frame 11. The rack 1131 cooperates with the drive gear to drive the sliding frame 12. The support plate 1132 bears the weight of the sliding frame 12, and the outwardly protruding limiting plate 1133 restricts the lateral displacement of the sliding frame 12, preventing the sliding frame 12 from falling off.

[0035] According to the present invention, a suspended conveying device for steel structures includes a vertical roller assembly 121 at the contact position between the sliding frame 12 and the support plate 1132 on the upper side of the guide member 113; a drive gear 122 at the contact position between the sliding frame 12 and the rack 1131 on the lower side of the guide member 113; and a horizontal roller assembly 123 below the inner protruding limiting plate 1133 of the sliding frame 12 and the guide member 113, with the horizontal roller assembly 123 abutting against the inner surface of the guide member 113. The vertical roller assembly 121 converts the sliding friction between the sliding frame 12 and the support plate 1132 into rolling friction, reducing movement resistance. The drive gear 122 meshes with the rack 1131, providing power for the movement of the sliding frame 12. The horizontal roller assembly 123 abuts against the inner surface of the guide member 113, further limiting the lateral displacement of the sliding frame 12 and ensuring smooth movement.

[0036] According to the present invention, a suspended conveying device for steel structures includes a suspended conveying mechanism 111 comprising a traveling wheel set 1111 and a servo drive motor 1112. The traveling wheel set 1111 is rolled and supported on a building track, and the servo drive motor 1112 drives the traveling wheel set 1111 to roll. An elastic adaptive clamping member is disposed between the traveling wheel set 1111 and the suspension fixing frame 11. The traveling wheel set 1111 bears the weight of the entire device and rolls along the building track. The servo drive motor 1112 provides the walking power, enabling precise positioning and speed adjustment of the device.

[0037] According to the present invention, a suspended conveying device for steel structures includes a wire brush roller 33 comprising a rigid main shaft 331 and multiple sliding bushings 332. An active connecting shaft is disposed in the middle of the rigid main shaft 331, and the active connecting shaft is connected to a support plate 34 via bearings. A drive motor 335 for driving the active connecting shaft to rotate is mounted on the outer side of the support plate 34. A continuous groove 336 is provided along the axial direction on the outer surface of the rigid main shaft 331. The sliding bushings 332 are provided with protrusions 337 that match the groove 336. Multiple sliding bushings 332 are inserted into and fixedly positioned along the groove 336 into the rigid main shaft 331. Brush body units 338 are provided on the outer surface of the sliding bushings 332. The rigid main shaft 331 provides core support for the wire brush roller 33, and the active connecting shaft transmits torque, driving the rigid main shaft 331 to rotate. The drive motor 335 provides cleaning power. The cooperation between the groove 336 and the protrusions 337 achieves circumferential positioning between the sliding bushings 332 and the rigid main shaft 331, ensuring reliable torque transmission. The sliding bushing 332 adopts an insert installation method, which makes it easy to replace the worn brush body unit 338 separately and reduces maintenance costs.

[0038] According to the present invention, a suspended conveying device for steel structures comprises multiple sliding bushings 332 with the same or different diameters. After combination, the brush body unit 338 can form different curvatures to match the workpiece steel plate to be cleaned. By selecting sliding bushings 332 with different diameters for combination, the overall contour curvature of the wire brush roller 33 can be flexibly adjusted to perfectly adapt to various curved shapes of high-speed rail steel plates, ensuring that the brush bristles in all areas can make close contact with the steel plate surface, achieving uniform cleaning.

[0039] According to the present invention, a suspended conveying device for steel structures includes a brush unit 338 made of metal wire, which increases the surface roughness of the workpiece steel plate during the rotational cleaning process. The metal wire brush unit 338 has high hardness and wear resistance, effectively removing stubborn oxide scale and rust from the steel plate surface. Simultaneously, during the rotational cleaning process, the metal wire forms a uniform micro-texture on the steel plate surface, increasing the surface roughness, enhancing the adhesion of subsequent coatings, and improving the product's corrosion resistance.

[0040] Explanation of the implementation process and principle of this invention: When the device is in operation, firstly, based on the length of the steel plate to be lifted, the screw motor 115 drives the positive and negative threaded screws 114 to rotate, adjusting the distance between the connecting rods 24 on both sides so that the center distance between the two first electric telescopic rods 21 meets the requirements of the minimum deflection design formula. Then, the first electric telescopic rods 21 extend, driving the electromagnetic chuck 22 to descend to the surface of the steel plate. The electromagnetic controller 23 controls the electromagnetic chuck 22 to be energized, adsorbing the steel plate. The first electric telescopic rods 21 retract, lifting the steel plate to the predetermined height. The servo drive motor 1112 drives the walking wheel set 1111 to travel along the building track, transporting the steel plate to the cleaning station.

[0041] The second electric telescopic rod 32 is energized, driving the wire brush roller 33 to contact the steel plate surface. The drive motor 335 starts, driving the wire brush roller 33 to rotate and clean the steel plate surface. Simultaneously, the active drive gear 122 rotates, driving the sliding frame 12 to move along the guide member 113, achieving cleaning of the entire length of the steel plate. The dust collection component 35 starts synchronously, promptly sucking away the swept-down oxide scale and iron filings. After cleaning is completed, the second electric telescopic rod 32 retracts, and the wire brush roller 33 returns to its original position. The servo drive motor 1112 continues to drive the device to move, conveying the steel plate to the next processing station. The electromagnetic controller 23 controls the electromagnetic chuck 22 to de-energize, releasing the steel plate, completing the entire conveying and cleaning process.

[0042] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A suspended conveying device for steel structures, characterized in that: Includes suspension components, magnetic adsorption components, and cleaning and vacuuming components; The suspension assembly includes a suspension fixing frame and a sliding frame. The top of the suspension fixing frame is provided with a suspension conveying mechanism, and the bottom of the suspension fixing frame is provided with a plurality of sliding groove mounting supports. Each sliding groove mounting support is provided with a groove, and a first slider is slidably installed in the groove. The first slider is provided with a through hole. The sliding frame is movably installed on the suspension fixing frame. The magnetic adsorption assembly includes a first electric telescopic rod, an electromagnetic chuck, and an electromagnetic controller, which are matched in number to the first slider. The first electric telescopic rod is fixed in the through hole of the first slider. The output end of the first electric telescopic rod passes through the through hole and is hinged to the electromagnetic chuck. The electromagnetic controller is mounted on the suspension bracket. The cleaning and vacuuming assembly includes a guide rod, a second electric telescopic rod, a wire brush roller, and a vacuuming assembly. The guide rod is slidably connected to the sliding frame. The second electric telescopic rod is mounted on the sliding frame. The two sides of the wire brush roller are connected to the second electric telescopic rod and the guide rod through support plates. The vacuuming assembly is mounted on the support plates. The vacuuming assembly is arranged side by side with the wire brush roller, and the vacuuming assembly is aligned with the cleaning area of ​​the wire brush roller.

2. The suspended conveying device for steel structures according to claim 1, characterized in that: The bottom of the suspension bracket is provided with four sliding groove mounting supports. Two adjacent first sliders along the width direction of the groove opening of the sliding groove mounting support are connected by a connecting rod, and the connecting rod is provided with a threaded through hole in the middle.

3. The suspended conveying device for steel structures according to claim 2, characterized in that: The bottom of the suspension bracket is equipped with a screw rod with positive and negative threads. The screw rod is connected to the threaded through hole of the connecting rod. A screw rod motor is provided in the middle of the screw rod. The screw rod motor drives the screw rod to move the connecting rods located on both sides closer or further away.

4. A suspended conveying device for steel structures according to claim 3, characterized in that: The distance L between the two first electric telescopic rods after the lead screw adjustment satisfies the calculation formula: In the formula: L is the center-to-center distance between the two first electric telescopic rods; B is the length of the workpiece steel plate; The spacing influence coefficient is taken as 1.1~1.

3.

5. A suspended conveying device for steel structures according to claim 1, characterized in that: The suspension fixing frame is provided with a guide member at the connection of the sliding frame. A rack is provided on the lower side of the guide member, a support plate of the sliding frame is provided on the upper side of the guide member, and an outwardly protruding limiting plate is provided on the inner side of the guide member.

6. A suspended conveying device for steel structures according to claim 5, characterized in that: A vertical roller assembly is provided at the contact position between the sliding frame and the support plate on the upper side of the guide member; an active drive gear is provided at the contact position between the sliding frame and the rack on the lower side of the guide member; a horizontal roller assembly is provided below the inner convex limiting plate of the sliding frame and the guide member; and the horizontal roller assembly abuts against the inner side of the guide member.

7. A suspended conveying device for steel structures according to claim 1, characterized in that: The suspended conveying mechanism includes a set of traveling wheels and a servo drive motor. The traveling wheels are supported on the building track and the servo drive motor drives the traveling wheels to roll.

8. A suspended conveying device for steel structures according to claim 1, characterized in that: The wire brush roller includes a rigid main shaft and multiple sliding bushings. An active connecting shaft is provided in the middle of the rigid main shaft. The active connecting shaft is connected to the support plate through a bearing. A drive motor for driving the active connecting shaft to rotate is installed on the outside of the support plate. A continuous groove is provided along the axial direction on the outer surface of the rigid main shaft. The sliding bushings are provided with protrusions that match the groove. Multiple sliding bushings are inserted into the rigid main shaft along the groove and fixed in a limited position. A brush body unit is provided on the outer surface of the sliding bushing.

9. A suspended conveying device for steel structures according to claim 8, characterized in that: Multiple sliding bushings are composed of the same or different diameters, and the combined brush body unit can form different curvatures to match the workpiece steel plate to be cleaned.

10. A suspended conveying device for steel structures according to claim 8, characterized in that: The brush unit is made of metal wire, which improves the surface roughness of the workpiece steel plate during the rotation cleaning process.

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