AU2020103180A4

AU2020103180A4 - Steel Bridge Re-coating Device

Info

Publication number: AU2020103180A4
Application number: AU2020103180A
Authority: AU
Inventors: Hu Li; Duo Liu; Zhiguo Liu; Zeliang Mao; Hao TONG; Xinran YU; Jiandong ZHANG
Original assignee: Jiangsu Xiandai Road&bridge Co Ltd; Nanjing Tech University; JSTI Group Co Ltd
Current assignee: Jiangsu Xiandai Road&bridge CoLtd; Nanjing Tech University; JSTI Group Co Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-01-14
Anticipated expiration: 2028-11-02

Abstract

The invention discloses a steel bridge re-painting device, which comprises a magnetic attraction system, a cleaning system and a painting system; The magnetic attraction system is arranged at the bottom of the device and is used for adsorbing the device on the surface of the steel plate at the bottom of the bridge; The cleaning system and painting system are both arranged on the upper part of the device, which are respectively used for cleaning the steel plate at the bottom of the bridge and painting after cleaning. The device can hang and walk on the surface of the steel plate at the bottom of the bridge to carry out derusting and painting work, and recover rust stains and waste paint, thus solving the problems of difficult and dangerous manual operation. -1/5 31 3 2 2 6 22422 44 43 32 4 42 Figure 1

Description

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Steel Bridge Re-coating Device

Technical field

The invention relates to the technical field of steel plate derusting and painting, in particular to

a steel bridge re-painting device suspended on the steel plate.

Background art

In order to carry out anti-corrosion treatment on the steel plate, the steel plate is usually

polished and derusted, and its surface is coated with paint. At present, the anti-corrosion of steel

bridges is generally done by manual polishing, derusting and painting. However, for some large

steel bridges, due to the large width of steel plates at the bottom of the bridge, it is difficult to erect

supports and the high risk factor, it brings great difficulties to manual operation.

In view of the difficulties existing in the anti-corrosion treatment of the bridge bottom at

present, the inventor actively researches and innovates on the basis of many years of rich practical

experience and professional knowledge engaged in the engineering application of such products and

in coordination with the application of theoretical theories, so as to create a steel bridge re-painting

device and make it more practical.

Contents of the invention

The technical problem to be solved by the invention is to provide a steel bridge re-painting

device, which can hang and walk on the steel plate at the bottom of the bridge to carry out rust

removal and paint spraying work, and recover rust stains and waste paint. In order to solve the

above technical problems, the technical scheme adopted by the invention is as follows:

A steel bridge re-coating device is characterize in that it comprises:

Magnetic attraction system, cleaning system and painting system;

The magnetic attraction system is arranged at the bottom of the device and is used for

adsorbing the device on the surface of the steel plate at the bottom of the bridge;

The cleaning system and painting system are both arranged on the upper part of the device,

which are respectively used for cleaning the steel plate at the bottom of the bridge and painting after

cleaning.

Further, the cleaning system is provided on top of the suspension of the device, and the

painting system is provided on top of the cleaning system.

Further, the painting system is provided with a paint conduit penetrating the cleaning system,

the cleaning system including a garbage can and a collection pipe for introducing rust stains and

waste paint into the garbage can;

The collection pipe is sleeved outside the paint pipe, and the two are coaxially arranged, and

the inner diameter of the collection pipe is larger than the outer diameter of the paint pipe.

Further, the steel bridge repainting device further includes a power system; The power system

is provided with a motor, a transmission system, two axles and four wheels respectively fixed at the

ends of the two axles;

The motor drives the two axles to rotate at the same time through the transmission system.

Further, the transmission system includes a first sector gear, a second sector gear, a third sector

gear, and a fourth sector gear;

The first sector gear is fixedly connected with the motor output shaft and meshes with the third

sector gear, the second sector gear is fixedly connected with the axle and meshes with the fourth

sector gear, and the third sector gear and the fourth sector gear are coaxially arranged.

Further, the cleaning system further includes a derusting device disposed at the bottom of the

device.

Further, a rotating device is arranged at the bottom of the device, and the derusting device is

installed on the rotating device.

Further, the rotating device is provided at the bottom of the collection pipe.

Further, the rotating device comprises a connecting piece, a rotating shaft and a sector gear

fixed on the rotating shaft, the sector gear directly or indirectly meshes with the first sector gear,

and the derusting device is fixed at one end of the rotating shaft.

Further, the magnetic attraction system includes at least one U-shaped electromagnet fixed to the bottom of the device.

By adopting the technical scheme in the invention, the invention has the following technical effects:

The device can hang and walk on the surface of the steel plate at the bottom of the bridge to

carry out derusting and painting work, and recover rust stains and waste paint, thus solving the

problems of difficult and dangerous manual operation;

By setting the painting system on the top of the cleaning system, the addition of paint is

convenient.

Rust stains and waste paint can be effectively introduced into the garbage can through the

collection pipe, and garbage can be sucked into the garbage can along the annular channel through the paint pipe which penetrates through and is arranged coaxially with the garbage, so as to prevent

blockage problems caused by uneven distribution of garbage in the garbage can, and the like;

By driving the front and rear axles at the same time, the stability of magnetic attraction in the

driving process is effectively ensured, the vehicle turbulence caused by unstable transmission is

prevented, and the problem that the device falls from the bridge bottom in the working process is avoided;

By setting up the derusting device, the waste paint and rust stains on the surface of the steel

plate at the bottom of the bridge can be removed more thoroughly to ensure the effect of painting at

the later stage. In the process of walking, the derusting device is matched to make the derusting effect at the place where it passes reach the best.

Description of the drawings

FIG. 1 is a front view of a steel bridge re-paint apparatus in an embodiment;

FIG. 2 is a top view of the steel bridge repainting apparatus;

FIG. 3 is a side view of the steel bridge repainting apparatus;

FIG. 4 is a schematic structural diagram of the power system;

FIG. 5 is a schematic structural diagram of the rotating device;

Reference numerals: 1 magnetic suction system, 11U electromagnet, 2 cleaning system, 21

garbage can, 22 collection pipe, 23 derusting device, 24 fan, 3 painting system, 31 painting conduit,

32 painting head, 4 power system, 41 motor, 42 transmission system, 43 axle, 44 wheels, 45 first

sector gear, 46 second sector gear, 47 third sector gear, 48 fourth sector gear, 5 rotating device, 51

connector, 52 rotating shaft, 53 sector gear, 6 suspension, 7 working area.

DETAILED DESCRIPTION

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

The following examples are only used to illustrate the technical scheme of the present invention

more clearly and cannot be used to limit the scope of protection of the present invention.

As shown in FIGS. 1-5, a steel bridge re-painting device comprises a magnetic attraction

system 1, a cleaning system 2 and a painting system 3; The magnetic attraction system 1 is used for

adsorbing the device on the steel plate at the bottom of the bridge, and comprises four U-shaped

electromagnets 11uniformly fixed at the bottom of the device, which are arranged at the bottom of

the device in order to maximize the magnetic force; The cleaning system 2 and the painting system

3 are both arranged on the upper part of the device and are respectively used for cleaning the steel

plate at the bottom of the bridge and painting after cleaning, wherein the cleaning system 2 is

arranged on the top of the suspension 6 of the device, and the painting system 3 is arranged on the

top of the cleaning system 2 in order to facilitate the addition of paint.

The paint spraying system 3 is provided with a paint conduit 31 penetrating the cleaning

system 2, and a paint spraying head 32 is provided at the end of the paint conduit 31, and the paint

is sprayed through the paint spraying head 32 after passing through the paint conduit 31. By selecting a reasonable paint spraying head 32, the paint spraying area can be controlled. In this

embodiment, the paint spraying area is a circular working area 7. The cleaning system 2 includes a

garbage can 21 and a collection pipe 22 for introducing rust stains and waste paint into the garbage

can 21; A collection pipe 22 is set outside that paint conduit 31, The two are coaxially arranged, And the inner diameter of the collecting tube 22 is larger than the outer diameter of the paint

conduit 31, The annular region formed between the inner surface of the collection pipe 22 and the

outer surface of the paint conduit 31 is a flow passage for garbage. A fan 24 is arranged inside the

cleaning system 2. After the fan 24 is activated, the air inside the garbage can 21 is sucked out, so that negative pressure is formed in the garbage can 21 to suck rust stains and waste paint adsorbed

on the surface of the steel plate at the bottom of the bridge.

The steel bridge re-painting device further comprises a power system 4; The power system 4 is

provided with a motor 41, a transmission system 42, two axles 43 and four wheels 44 respectively fixed at the ends of the two axles 43; A motor 41 rotate both axles 43 simultaneously through a

drive system 42, By simultaneously driving the front and rear axles, The stability of magnetic

attraction in the driving process is effectively ensured, Due to the uneven surface of the steel plate

at the bottom of the bridge to different degrees, the four-wheel drive can maintain sufficient power when any wheel 44 encounters uneven conditions during driving, so as not to be stuck, effectively

avoiding vehicle turbulence caused by unstable driving, and avoiding the problem that the device

falls from the bottom of the bridge during working. Wherein the transmission system 42 includes a

first sector gear 45, a second sector gear 46, a third sector gear 47 and a fourth sector gear 48; The first sector gear 45 is fixedly connected to the output shaft of the motor 41 and meshes with the

third sector gear 47. The second sector gear 46 is fixedly connected to the axle 43 and meshes with

the fourth sector gear 48. The third sector gear 47 and the fourth sector gear 48 are disposed coaxially.

A rotate device 5 is provided at that bottom of the device, At that bottom of the collection pipe 22, Thereby making the device more compact, Reduced the number of parts, Which comprises a connecting member 51, a rotating shaft 52 and a sector gear 53 fixed to the rotating shaft 52, The sector gear 53 is indirectly engaged with the first sector gear 45 by means of a gear transmission system, A connection memb 51 is rotatably connected to that bottom of the collection pipe 22, Removable during painting operation, the cleaning system 2 also comprises a derusting device 23, which is installed at one end of the rotating shaft 52 of the rotating device 5, wherein the derusting device 23 has a wide selection and can select rigid brushes of various shapes, and the derusting device 23 and the rotating shaft 52 can be provided with elastic devices to ensure the adhesion between the derusting device 23 and the steel plate surface during cleaning of the bridge bottom steel plate.

At that specific time of work, At first, that rotate device 5 is rotatably connected to the

collection pipe 22, 45 and engage that sector gear 53 with the first sector gear 45, The electric motor

41 and the U-shaped electromagnet 11 are supplied with power by the power supply system, The device is adsorbed on the surface of the steel plate by the magnetic field generated by the U-shaped

electromagnet 11, And began to walk along the steel plate, The surface of the steel plate is cleaned

by a derusting device 23 provided at one end of the rotating shaft 52, So that rust stains and waste paint on the surface of the steel plate are brushed off, then the rotating device 5 is removed together

with the derusting device 23, the power supply system supplies power to the fan 24, the device

repeats the area just passed, and the garbage scraped off by the derusting device 23 but still

adsorbed on the surface of the steel plate is sucked off through the suction force formed by the fan 24, thus effectively ensuring the cleaning effect; After the cleaning is completed, the power supply

system supplies power to the painting system, and the control device travels along the same path

again to complete the painting work.

The above is a further detailed description of the invention in connection with specific

preferred embodiments, and it cannot be construed that the specific implementation of the invention is limited to these descriptions. For ordinary skilled personnel in the technical field to which the

invention belongs, the framework form can be flexible and changeable without departing from the

concept of the invention, and a series of schemes can be derived. Only a few simple deductions or

substitutions shall be regarded as falling within the scope of patent protection of the invention as determined by the filed claims.

Claims

Claims

1,. A steel bridge re-coating device is characterize in that it comprises:

A magnetic suction system (1), a cleaning system (2) and a painting system (3);

The magnetic attraction system (1) is arranged at the bottom of the device and is used for adsorbing the device on the surface of the steel plate at the bottom of the bridge;

The cleaning system (2) and the painting system (3) are both arranged on the upper part of the

device and are respectively used for cleaning the bridge bottom steel plate and painting after

cleaning.

2, The steel bridge repainting device according to claim 1, characterized in that the cleaning system (2) is arranged on top of the suspension (6) of the device, and the painting system

(3) is arranged on top of the cleaning system (2).

3, The steel bridge repainting device according to claim 2, characterized in that the painting system (3) is provided with a paint conduit (31) penetrating through the cleaning system

(2), the cleaning system (2) comprising a garbage can (21) and a collection pipe (22) for introducing

rust stains and waste paint into the garbage can (21);

The collection pipe (22) is sleeved outside the paint conduit (31), and the two are coaxially arranged, and the inner diameter of the collection pipe (22) is larger than the outer diameter of the

paint conduit (31).

4, The steel bridge repainting device according to claim 1, further comprising a power system (4); The power system (4) is provided with a motor (41), a transmission system (42), two

axles (43) and four wheels (44) respectively fixed at the ends of the two axles (43);

The motor (41) simultaneously drives the two axles (43) to rotate through the transmission

system (42).

5, The steel bridge repainting device according to claim 4, wherein the transmission system (42) comprises a first sector gear (45), a second sector gear (46), a third sector gear (47) and a

fourth sector gear (48);

The first sector gear (45) is fixedly connected with the output shaft of the motor (41) and

meshes with the third sector gear (47), the second sector gear (46) is fixedly connected with the axle

(43) and meshes with the fourth sector gear (48), and the third sector gear (47) and the fourth sector gear (48) are arranged coaxially.

6, The steel bridge repainting device according to claim 5, characterized in that the cleaning system (2) further comprises a derusting device (23) arranged at the bottom of the device.

7, The steel bridge repainting device according to claim 6, characterized in that a rotating device (5) is arranged at the bottom of the device, and the derusting device (23) is installed on the

rotating device (5).

8, The steel bridge repainting device according to claim 7, characterized in that the rotating device (5) is arranged at the bottom of the collection pipe (22).

9, The steel bridge repainting device according to claim 7, characterized in that the rotating device (5) comprises a connecting piece (51), a rotating shaft (52) and a sector gear (53)

fixed on the rotating shaft (52), the sector gear (53) directly or indirectly meshing with the first

sector gear (45), and the derusting device (23) is fixed at one end of the rotating shaft (52).

10, The steel bridge repainting device according to claim 1, characterized in that the magnetic attraction system (1) comprises at least one U-shaped electromagnet (11) fixed to the bottom of the device.

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