A type steel structure intelligent polishing and derusting device for bridge construction and a use method thereof

Abstract

The application discloses a kind of bridge construction with profile steel structure intelligent polishing derusting device and use method, belong to bridge construction technical field, including lifting frame, the front and rear ends of the top of lifting frame are threadedly installed with guide assembly, guide assembly includes central cylinder threadedly installed in the top of lifting frame front and rear ends, the top of central cylinder both sides is hinged with hinge plate, central cylinder left and right sides are symmetrically installed with side auxiliary rod, further include wheel ring processing assembly, this wheel ring processing assembly is embeddedly installed in the top of lifting frame middle part, the wheel ring processing assembly includes wheel body, the front and rear ends of the wheel body are equipped with gear ring body.The bridge construction steel pipe polishing derusting device, the iron filings attached to the surface of steel pipe is swept off, the rust that is polished by wire brush is polished to make up, make up the polishing dead angle of wire brush on the rust of steel pipe, different diameter steel pipe can be polished and rusted, realize the double rust removal operation of rust removal device to steel pipe.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to an intelligent grinding and rust removal device for steel structures used in bridge construction and its usage method. Background Technology

[0002] Steel pipes are steel materials with a hollow cross-section, whose length is much greater than their diameter or circumference. Steel pipes are used not only for transporting fluids and powdery solids, exchanging heat energy, and manufacturing mechanical parts and containers, but they are also an economical steel material. Using steel pipes to manufacture building structural frames, columns, and mechanical supports can reduce weight and enable factory-based mechanized construction. Using steel pipes to construct highway bridges not only saves steel and simplifies construction, but also significantly reduces the area requiring protective coatings, saving investment and maintenance costs. Especially during bridge construction, steel pipes are frequently used; however, the storage environment for steel pipes during bridge construction is extremely humid, making them prone to rust. Therefore, it is necessary to design relevant rust removal devices to treat the steel pipes for rust removal.

[0003] Existing steel pipe rust removal equipment can remove rust from the surface of steel pipes by grinding. However, due to the curved surface of steel pipes, there are often certain blind spots during the grinding process, resulting in insufficient and incomplete removal of rust. Furthermore, as grinding progresses, some iron filings fall to the ground and pollute the environment, while some iron filings wash and adhere to the steel pipes, making the surface of the steel pipes dirty and requiring a separate cleaning step, which consumes unnecessary manpower and resources. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent grinding and rust removal device and method for steel structures used in bridge construction. The device sweeps off iron filings adhering to the surface of steel pipes and supplements the grinding of rust missed by the grinding brush, thus making up for the grinding dead angles of the grinding brush on the steel pipes. It can perform grinding and rust removal operations on steel pipes of different diameters, realizing dual rust removal operations on steel pipes, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A smart grinding and rust removal device for steel structures used in bridge construction includes a lifting frame, a wheel ring processing assembly, and a finishing assembly. The lifting frame has guide components threadedly installed at both the front and rear ends of its top. Each guide component includes a central cylinder threadedly installed at the front and rear ends of the lifting frame's top. Hinges are hinged to both sides of the top of the central cylinder, and side auxiliary rods are symmetrically installed on the left and right sides of the central cylinder. The wheel ring processing assembly is fitted into the middle of the top of the lifting frame. The wheel ring processing assembly includes a wheel body, with toothed rings clamped to the front and rear ends of the wheel body. The toothed rings are capable of rotating around the axis of the wheel body. The finishing assembly is installed on the rear side of the top of the lifting frame. The finishing assembly includes pumps symmetrically installed on the rear side of the top of the lifting frame. The bottom of the pump is installed on the rear side of the top of the lifting frame. A cover is installed on the side of the pump closest to the central cylinder. A conduit connects the cover and the pump. Folding parts are connected to the upper and lower edges of the cover, and magnetic strips are installed on the side of the folding parts away from the cover.

[0007] Furthermore, a rubber round support is hinged to the top of the side auxiliary rod, and the rubber round support is installed in a lifting frame via the side auxiliary rod. The side auxiliary rod is supported by the hinge plate via the rubber round support.

[0008] Furthermore, the outer surface of the toothed ring body is circular and has several toothed grooves. A transmission wheel is inserted into the right front end of the wheel body. The transmission wheel is engaged with the toothed ring body through the toothed grooves. A motor is installed on the right top end of the lifting frame. A drive wheel is installed on the output end of the motor with a pin. The drive wheel is engaged with the transmission wheel. The toothed ring body is rotated and installed with the wheel body through the cooperation of the drive wheel and the transmission wheel on the motor.

[0009] Furthermore, pressure blocks are fixedly installed in a circular array on both the front and rear ends of the wheel body. A through hole is opened at the end of the pressure block facing the center of the wheel body, and a steel ball is fitted inside the through hole. A ring rail is opened on the side of the toothed ring body away from the wheel body, and the steel ball is fitted inside the ring rail. The wheel body is limited and installed on the wheel body by the cooperation of the steel ball on the pressure block and the ring rail.

[0010] Furthermore, a storage body is centrally symmetrically connected to the inner wall of the toothed ring body. A telescopic plate is inserted into the end of the storage body away from the pressure block, and a screw is installed at the part of the telescopic plate that overlaps with the storage body. A grinding brush is connected to the end of the telescopic plate near the center of the toothed ring body. The grinding brush is assembled and installed with the storage body through the cooperation of the telescopic plate and the screw.

[0011] Furthermore, a hydraulic rod is installed on the inner wall surface of both sets of toothed rings. A rubbing head is rotatably installed at one end of the hydraulic rod pointing towards the center of the wheel body. The rubbing head is telescopically installed with the wheel body via the hydraulic rod.

[0012] Furthermore, the end of the cover facing the wheel body is symmetrically connected with a ball head rod, which is composed of a ball head and a ball rod as a whole. The end of the ball head rod near the outer surface of the steel pipe is slidably installed with the steel pipe through the ball head. A guide plate is installed on the inner wall side of the cover that connects with the folding part.

[0013] Furthermore, two buckets are installed at the bottom of the lifting frame. The two buckets are symmetrically installed at the front and rear ends of the wheel body. The vertical projections of the grinding brush and the wiping head fall within the coverage area of ​​the bucket installed at the front end of the wheel body, while the vertical projection of the ring structure formed by the cover and the folding part falls within the coverage area of ​​the bucket installed at the rear end of the wheel body.

[0014] This invention provides another technical solution: a method for using an intelligent grinding and rust removal device for steel structures used in bridge construction, comprising the following steps:

[0015] Step 1: Lift the steel pipe onto the hinge plate at the top of the central cylinder, and then pull the hinge plate toward the surface of the steel pipe to limit the side of the steel pipe.

[0016] Step 2: Adjust the threaded positioning position of the telescopic plate on the storage body so that the grinding brush can fit tightly against the surface of the steel pipe. At the same time, extend the hydraulic rod towards the surface of the steel pipe so that the rubbing head fits tightly against the surface of the steel pipe. Then, wrap the folded part connected to the upper and lower sides of the cover around the surface of the steel pipe in a ring shape.

[0017] Step 3: Apply a horizontal, uniform thrust to the steel pipe, causing it to move horizontally and linearly from front to back on the rust removal device. At the same time, start the motor, which, through the meshing of the drive wheel and the transmission wheel, drives the toothed ring at the front end of the wheel to rotate on the wheel, thereby driving the grinding brushes and wiping heads installed on the inner side of the two sets of toothed rings to grind the rust on the steel pipe simultaneously.

[0018] Step 4: The iron filings that fall off during grinding are collected on the inside of the bucket, allowing the rust removal device to simultaneously grind and remove rust from the steel pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The steel pipe grinding and rust removal device and method for bridge construction of the present invention extends the hydraulic rod towards the center of the wheel body, so that the grinding head is in close contact with the surface of the steel pipe. The high-speed rotation of the toothed ring body on the wheel body drives the grinding head to clean the surface of the steel pipe, sweeping off the iron filings attached to the surface of the steel pipe. At the same time, it can also supplement the grinding of the rust missed by the grinding brush, making up for the dead corners of the grinding brush on the rust on the steel pipe.

[0021] 2. The steel pipe grinding and rust removal device and method for bridge construction of the present invention, by means of the opening and closing of the hinge plate on both sides of the top of the central cylinder, and the lifting support of the side auxiliary rod when the hinge plate is opened, can expand the range of steel pipe diameter that the top of the central cylinder can support, so as to achieve stable support for steel pipes of different diameters. With the cooperation of the adjustable grinding brush and wiping head at the distance from the steel pipe, and the adjustable folding part of the cover, the rust removal device can perform grinding and rust removal operations on steel pipes of different diameters.

[0022] 3. The steel pipe grinding and rust removal device and its usage method for bridge construction of the present invention utilizes a set wheel ring processing assembly, which uses a motor to provide driving force to drive the toothed ring body to rotate on the wheel body, thereby driving the grinding brush and the wiping head to grind the rust on the surface of the steel pipe. By using the two grinding barriers formed by the grinding brush and the wiping head, the steel pipe is ground in a progressive manner, achieving a double grinding operation, thus realizing the double rust removal operation of the rust removal device on the steel pipe.

[0023] 4. The steel pipe grinding and rust removal device and its usage method for bridge construction of the present invention utilize a pre-reserved gap at the front end of the cover, which is supported by a ball-head rod and can detach from the surface of the steel pipe. When the pump is started, a strong suction force is generated from the gap, which facilitates the timely collection of iron filings swept off by the wiping head into the annular structure formed by the cover and the folding part. Finally, through the unidirectional guidance of the guide plate, the iron filings are uniformly collected inside the pump through the conduit, thereby achieving comprehensive cleaning of iron filings on the surface of the steel pipe and ensuring that the surface of the steel pipe is clean and tidy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the bucket body and the tail assembly of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the guiding component of the present invention;

[0027] Figure 4 This is a schematic diagram of the wheel ring processing assembly of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the finishing assembly of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the cover and folding part of the present invention.

[0030] In the diagram: 1. Lifting frame; 2. Guide assembly; 21. Central cylinder; 22. Hinge plate; 23. Side auxiliary rod; 3. Motor; 4. Wheel ring processing assembly; 41. Wheel body; 42. Toothed ring body; 43. Pressure block; 44. Steel ball; 45. Storage body; 46. Telescopic plate; 47. Wire brush; 48. Hydraulic rod; 49. Wiping head; 410. Transmission wheel; 5. Bucket body; 6. Tail-end assembly; 61. Pump; 62. Cover; 63. Guide tube; 64. Folding part; 65. Ball head rod; 66. Guide plate; 7. Drive wheel. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-6 This invention provides an intelligent grinding and rust removal device for steel structures used in bridge construction, comprising a lifting frame 1, a wheel ring processing assembly 4, and a finishing assembly 6. The lifting frame 1 has guide components 2 threadedly installed at both the front and rear ends of its top. Each guide component 2 includes a central cylinder 21 threadedly installed at the front and rear ends of the top of the lifting frame 1. Hinges 22 are hinged to both sides of the top of the central cylinder 21, and side auxiliary rods 23 are symmetrically installed on the left and right sides of the central cylinder 21. The wheel ring processing assembly 4 is fitted into the middle of the top of the lifting frame 1. The wheel ring processing assembly 4 includes a wheel body 41, and toothed ring bodies 42 are fitted onto the front and rear ends of the wheel body 41. The toothed ring bodies 42 are capable of... The rotating motion is around the axis of the wheel body 41; the tailing assembly 6 is installed on the rear side of the top of the lifting frame 1. The tailing assembly 6 includes a pump 61 installed symmetrically on the rear side of the top of the lifting frame 1. The bottom of the pump 61 is installed on the rear side of the top of the lifting frame 1. A cover 62 is installed on the side of the pump 61 near the central cylinder 21. A conduit 63 is connected between the cover 62 and the pump 61. Folding parts 64 are connected to the upper and lower edges of the cover 62. A magnetic strip is installed on the side of the folding part 64 away from the cover 62. The magnetic strip facilitates the magnetic attraction of the two folding parts 64 to form a closed structure, so that the folding parts 64 can surround the outer surface of the steel pipe in a ring shape.

[0033] In the above embodiment, a rubber round support is hinged to the top of the side auxiliary rod 23, and the rubber round support is installed in a lifting manner with the lifting frame 1 through the side auxiliary rod 23. The side auxiliary rod 23 is set to support the hinge plate 22 through the rubber round support, which can support the surface of the hinge plate 22 and provide strong support.

[0034] In the above embodiment, the outer surface of the toothed ring body 42 is circularly shaped with several toothed grooves. A transmission wheel 410 is inserted into the right front end of the wheel body 41. The transmission wheel 410 is engaged with the toothed ring body 42 through the toothed grooves. A motor 3 is installed on the right top end of the lifting frame 1. A drive wheel 7 is installed on the output end of the motor 3. The drive wheel 7 is engaged with the transmission wheel 410. The toothed ring body 42 is rotated and installed with the wheel body 41 through the cooperation of the drive wheel 7 and the transmission wheel 410 on the motor 3. Pressure blocks 43 are fixedly installed in a circular array on both the front and rear ends of the wheel body 41. The pressure blocks 43 face the wheel body 41. A through hole is provided at one end of the center of the wheel body 41, and a steel ball 44 is fitted inside the through hole. A ring rail is provided on the side of the toothed ring body 42 away from the wheel body 41, and the steel ball 44 is fitted inside the ring rail. The wheel body 41 is fixed and mounted on the wheel body 41 by the cooperation of the steel ball 44 on the pressure block 43 and the ring rail. The setting of the pressure block 43 and the steel ball 44 can prevent the toothed ring body 42 from detaching from the wheel body 41. And the ring rail provides a ring track for the steel ball 44, so that the toothed ring body 42 can rotate smoothly around the axis of the wheel body 41 under the limiting action of the pressure block 43 and the steel ball 44.

[0035] In the above embodiment, a housing 45 is centrally symmetrically connected to the inner wall of the toothed ring 42. A telescopic plate 46 is inserted into the end of the housing 45 away from the pressure block 43, and a screw is installed at the overlapping part of the telescopic plate 46 and the housing 45. A grinding brush 47 is connected to the end of the telescopic plate 46 near the center of the toothed ring 42. The grinding brush 47 is assembled and installed with the housing 45 through the cooperation of the telescopic plate 46 and the screw. The screw can thread the telescopic plate 46 onto the housing 45, and the telescopic plate 46 can be extended and retracted and positioned within the housing 45.

[0036] In the above embodiment, a hydraulic rod 48 is installed on the inner wall surface of the two sets of toothed ring bodies 42. A rubbing head 49 is rotatably installed at one end of the hydraulic rod 48 pointing to the center of the wheel body 41. The rubbing head 49 is telescopically installed with the wheel body 41 via the hydraulic rod 48, and can rotate around the axis of the hydraulic rod 48 to change the tilting and grinding angle between the hydraulic rod 48 and the outer surface of the steel pipe, so as to achieve scraping and grinding of the outer surface of the steel pipe at different angles and achieve different rust removal effects.

[0037] To further illustrate the above embodiments, the present invention also provides a method for using an intelligent grinding and rust removal device for steel structures used in bridge construction, comprising the following steps:

[0038] Step 1: Lift the steel pipe onto the two guide components 2, specifically onto the hinge plate 22 at the top of the central cylinder 21, and then retract the hinge plate 22 toward the surface of the steel pipe to limit the side of the steel pipe.

[0039] Step 2: Adjust the threaded positioning position of the telescopic plate 46 on the storage body 45 so that the grinding brush 47 can fit tightly against the surface of the steel pipe. Similarly, extend the hydraulic rod 48 towards the surface of the steel pipe so that the wiping head 49 fits tightly against the surface of the steel pipe. Then wrap the folded part 64 connected to the upper and lower sides of the cover 62 in a ring shape around the surface of the steel pipe.

[0040] Step 3: Apply a horizontal, uniform thrust to the steel pipe, causing it to move horizontally and linearly from front to back on the rust removal device. Simultaneously, start motor 3, which, through the meshing transmission of drive wheel 7 and transmission wheel 410, drives the toothed ring body 42 at the front end of wheel body 41 to rotate on wheel body 41. Since the two sets of toothed ring bodies 42 at the front and rear ends of wheel body 41 are assembled and connected together via hydraulic rod 48, the rear toothed ring body 42 can also rotate synchronously on wheel body 41. This drives the abrasive brush 47 and wiping head 49 installed on the inner side of the two sets of toothed ring bodies 42 to simultaneously polish the rust on the steel pipe.

[0041] Step 4: Most of the iron filings produced by grinding are collected on the inside of bucket 5, so that the rust removal device can grind and remove rust from the steel pipe at the same time.

[0042] In the above method, by the folding and unfolding of the hinge plate 22 on both sides of the top of the central cylinder 21, and with the support of the side auxiliary rod 23 for lifting the hinge plate 22 when unfolding, the range of steel pipe diameter that the top of the central cylinder 21 can support can be expanded, so as to achieve stable support for steel pipes of different diameters. With the cooperation of the adjustable grinding brush 47 and the wiping head 49, and the adjustable folding part 64 covering the cover 62, the rust removal device can perform grinding and rust removal operations on steel pipes of different diameters.

[0043] The wheel ring processing assembly 4 is equipped with a motor 3 to provide driving force, which drives the toothed ring body 42 to rotate on the wheel body 41. This drives the grinding brush 47 and the wiping head 49 to grind the rust on the surface of the steel pipe. The two grinding barriers formed by the grinding brush 47 and the wiping head 49 achieve a progressive double grinding of the steel pipe, realizing the double rust removal operation of the rust removal device on the steel pipe.

[0044] The present invention also provides another embodiment, which is based on embodiment one, such as... Figure 5 and Figure 6As shown, ball-head rods 65 are symmetrically connected at the end of the cover 62 facing the wheel body 41. The ball-head rod 65 is composed of a ball head and a rod. The end of the ball-head rod 65 near the outer surface of the steel pipe is slidably installed with the steel pipe through the ball head. A guide plate 66 is installed on the inner wall side of the cover 62 connected to the folding part 64. A guide slit is opened on the side of the guide plate 66 close to the cover 62, which only allows iron filings to pass through in one direction. This is used to guide the iron filings in one direction and prevent the iron filings from flowing back or accumulating inside the folding part 64. Two buckets 5 are installed at the bottom of the lifting frame 1, and the two buckets 5 are symmetrically installed at the front and rear ends of the wheel body 41. The vertical projections of the grinding brush 47 and the wiping head 49 fall within the coverage area of ​​the bucket 5 installed at the front end of the wheel body 41, while the vertical projection of the ring structure formed by the cover body 62 and the folding part 64 falls within the coverage area of ​​the bucket 5 installed at the rear end of the wheel body 41. By setting the two buckets 5, some of the iron filings scraped off the surface of the steel pipe can be collected to prevent the iron filings from polluting the surrounding working environment.

[0045] In use, the hydraulic rod 48 can be extended towards the center of the wheel body 41, so that the wiping head 49 is in close contact with the surface of the steel pipe. The high-speed rotation of the toothed ring body 42 on the wheel body 41 drives the wiping head 49 to clean the surface of the steel pipe, sweeping off the iron filings attached to the surface of the steel pipe. At the same time, it can also supplement the grinding of the rust missed by the grinding brush 47, making up for the dead corners of the grinding brush 47 in grinding the rust on the steel pipe.

[0046] Meanwhile, the pre-reserved gap at the front end of the cover 62, supported by the ball head rod 65, which allows it to detach from the surface of the steel pipe, generates a strong suction force when the pump 61 is started. This facilitates the timely collection of iron filings swept off by the wiping head 49 into the annular structure formed by the cover 62 and the folding part 64. Finally, guided in one direction by the guide plate 66, the iron filings are collected in the pump 61 through the conduit 63, achieving comprehensive cleaning of iron filings on the surface of the steel pipe and ensuring the cleanliness of the steel pipe surface.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for using an intelligent grinding and rust removal device for steel structures used in bridge construction, characterized in that, The device includes a lifting frame (1), a wheel ring processing assembly (4), and a finishing assembly (6); the lifting frame (1) has guide components (2) threadedly installed at both the front and rear ends of the top, the guide components (2) including a central cylinder (21) threadedly installed at the front and rear ends of the top of the lifting frame (1), the central cylinder (21) has hinge plates (22) hinged on both sides of the top end, and side auxiliary rods (23) are symmetrically installed on the left and right sides of the central cylinder (21); the wheel ring processing assembly (4) is fitted into the middle of the top of the lifting frame (1), the wheel ring processing assembly (4) includes a wheel body (41), and toothed ring bodies are clamped on the front and rear ends of the wheel body (41). 42), the toothed ring body (42) can rotate around the axis of the wheel body (41); the tailing assembly (6) is installed on the rear side of the top of the lifting frame (1), the tailing assembly (6) includes a pump (61) installed symmetrically on the rear side of the top of the lifting frame (1), the bottom of the pump (61) is installed on the rear side of the top of the lifting frame (1), the pump (61) is equipped with a cover (62) on the side of the pump (61) near the central cylinder (21), the cover (62) and the pump (61) are connected by a conduit (63), the upper and lower edges of the cover (62) are connected with folding parts (64), and the side of the folding part (64) away from the cover (62) is equipped with a magnetic strip; The cover (62) is symmetrically connected to a ball head rod (65) at one end facing the wheel body (41). The ball head rod (65) is composed of a ball head and a ball rod as a whole. The end of the ball head rod (65) near the outer surface of the steel pipe is slidably installed with the steel pipe through the ball head. A guide plate (66) is installed on the inner wall side of the cover (62) connected to the folding part (64). The bottom of the lifting frame (1) is equipped with two buckets (5). The two buckets (5) are symmetrically installed at the front and rear ends of the wheel (41). The vertical projections of the filament brush (47) and the wiping head (49) fall within the coverage area of ​​the bucket (5) installed at the front end of the wheel (41). The vertical projection of the ring structure formed by the cover (62) and the folding part (64) falls within the coverage area of ​​the bucket (5) installed at the rear end of the wheel (41). Its usage method includes the following steps: Step 1: Lift the steel pipe onto the hinge plate (22) at the top of the central cylinder (21), and then pull the hinge plate (22) toward the surface of the steel pipe to limit the side of the steel pipe. Step 2: Adjust the threaded positioning position of the telescopic plate (46) on the storage body (45) so that the grinding brush (47) can fit tightly against the surface of the steel pipe. At the same time, extend the hydraulic rod (48) towards the surface of the steel pipe so that the wiping head (49) fits tightly against the surface of the steel pipe. Then wrap the folded part (64) connected to the upper and lower sides of the cover (62) in a ring shape around the surface of the steel pipe. Step 3: Apply a horizontal, uniform thrust to the steel pipe so that it moves horizontally and uniformly in a straight line from front to back on the rust removal device; at the same time, start the motor (3), and through the meshing transmission of the drive wheel (7) and the transmission wheel (410), drive the toothed ring body (42) at the front end of the wheel body (41) to rotate on the wheel body (41), thereby driving the grinding brush (47) and the wiping head (49) installed on the inner side of the two sets of toothed ring bodies (42) to grind the rust on the steel pipe simultaneously; Step 4: The iron filings that fall off during grinding are collected on the inside of the bucket (5), so that the rust removal device can grind and remove rust from the steel pipe at the same time.

2. The method of using the intelligent grinding and rust removal device for steel structures used in bridge construction as described in claim 1, characterized in that: The top of the side auxiliary rod (23) is hinged with a rubber round support, and the rubber round support is installed in a lifting frame (1) through the side auxiliary rod (23). The side auxiliary rod (23) is supported by the hinge plate (22) through the rubber round support.

3. The method of using the intelligent grinding and rust removal device for steel structures used in bridge construction as described in claim 2, characterized in that: The outer surface of the toothed ring body (42) is circular and has several toothed grooves. A transmission wheel (410) is inserted into the right side of the front end of the wheel body (41). The transmission wheel (410) is meshed with the toothed ring body (42) through the toothed grooves. A motor (3) is installed on the right side of the top of the lifting frame (1). A drive wheel (7) is installed on the output end of the motor (3). The drive wheel (7) is meshed with the transmission wheel (410). The toothed ring body (42) is rotated and installed with the wheel body (41) through the cooperation of the drive wheel (7) and the transmission wheel (410) on the motor (3).

4. The method of using the intelligent grinding and rust removal device for steel structures used in bridge construction as described in claim 3, characterized in that: The front and rear ends of the spool body (41) are fixedly mounted with pressure blocks (43) in a circular array. The pressure block (43) has a through hole at one end facing the center of the spool body (41), and a steel ball (44) is fitted inside the through hole. The toothed ring body (42) has a ring rail on the side away from the spool body (41), and the steel ball (44) is fitted inside the ring rail. The spool body (41) is fixed and mounted on the spool body (41) by the steel ball (44) on the pressure block (43) and the ring rail.

5. The method of using the intelligent grinding and rust removal device for steel structures used in bridge construction as described in claim 4, characterized in that: The inner wall of the toothed ring (42) is centrally symmetrically connected to a storage body (45). A telescopic plate (46) is inserted into the end of the storage body (45) away from the pressure block (43), and a screw is installed at the part of the telescopic plate (46) that overlaps with the storage body (45). A grinding brush (47) is connected to the end of the telescopic plate (46) near the center of the toothed ring (42). The grinding brush (47) is assembled and installed with the storage body (45) through the cooperation of the telescopic plate (46) and the screw.

6. The method of using the intelligent grinding and rust removal device for steel structures used in bridge construction as described in claim 5, characterized in that: Hydraulic rods (48) are installed on the inner wall surfaces of the two sets of toothed ring bodies (42). A rubbing head (49) is rotatably installed at one end of the hydraulic rod (48) pointing towards the center of the wheel body (41). The rubbing head (49) is telescopically installed with the wheel body (41) through the hydraulic rod (48).

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