CN221338052U

CN221338052U - Steel construction surface burnishing device

Info

Publication number: CN221338052U
Application number: CN202322828314.8U
Authority: CN
Inventors: 赵永锋; 孔亚斐; 江河; 陈妹芳; 吴清云
Original assignee: Beihui Lvjian Hainan Co ltd
Current assignee: Beihui Lvjian Hainan Co ltd
Priority date: 2023-10-21
Filing date: 2023-10-21
Publication date: 2024-07-16
Anticipated expiration: 2033-10-21

Abstract

The utility model discloses a steel structure surface polishing device which comprises a front section of roller conveying frame and a rear section of roller conveying frame, wherein a polishing mechanism is arranged between the front section of roller conveying frame and the rear section of roller conveying frame. The roller conveying frame consists of two first transverse brackets, a plurality of rollers are arranged between the first transverse brackets, and a limiting mechanism is arranged to form a limiting channel. The polishing mechanism includes upper and lower polishing mechanisms and a side polishing mechanism. The upper polishing mechanism comprises a second vertical support and a third transverse support, and a first telescopic push rod and an upper polishing component are arranged on the third transverse support. The lower polishing mechanism comprises a second telescopic push rod, and the telescopic rod extends upwards and is provided with a lower polishing component. The side polishing mechanism comprises a third vertical support and a fourth transverse support, a third telescopic push rod and a sliding frame are fixedly arranged on the fourth transverse support, the third telescopic push rod is connected with the sliding frame, and a side polishing component is arranged on the sliding frame. The device can realize the simultaneous polishing of the inner side and the outer side of the flange plate of the H-shaped steel and the two side surfaces of the web plate, thereby improving the polishing efficiency of the H-shaped steel.

Description

Steel construction surface burnishing device

Technical Field

The utility model relates to the technical field of steel structure polishing, in particular to a steel structure surface polishing device.

Background

The steel structure is a structural system constructed by steel materials through specific combination, can bear a certain load and has a certain bearing capacity. In this field, H-section steel is a common type of steel, which is favored because of its excellent mechanical properties and wide applicability.

H-section steel is widely used as a standardized product in various fields of construction and manufacturing. For convenience of use, a portion of the inventory is typically pre-produced according to historical sales orders to meet customer needs in a timely manner. However, these stock H-section steels often suffer from surface rust after a period of time, which not only affects their aesthetics, but may also have some impact on their load carrying capacity and service life. Therefore, it is necessary to polish these stock pieces before sales are made.

Since the H-section steel has a plurality of flat surfaces on different base surfaces, it is necessary to perform operations for the different surfaces when performing the polishing process. At present, a manual handheld polishing machine is a main polishing mode, but the polishing mode is low in efficiency, and time and labor are wasted. Therefore, it is urgent to develop an efficient H-steel polishing apparatus.

Disclosure of utility model

In view of the above, an object of the present utility model is to provide a steel structure surface polishing apparatus capable of achieving simultaneous polishing of multiple faces of H-section steel to solve the problems described in the background art.

The technical scheme of the utility model is realized as follows:

The utility model provides a steel construction surface polishing device, includes two sections cylinder carriages around following sharp interval setting, interval space department between two sections cylinder carriages is equipped with polishing mechanism, the cylinder carriage includes two opposition first horizontal brackets on the first vertical bracket, rotate between two first horizontal brackets and install a plurality of cylinders, still be equipped with stop gear on the relative one side of two first horizontal brackets respectively, two stop gear centre gripping forms the spacing passageway that is used for restricting H shaped steel position, polishing mechanism is including locating the upper polishing mechanism of cylinder top, locates the lower polishing mechanism of cylinder below to and locate the side polishing mechanism of cylinder carriage left and right sides respectively, upper polishing mechanism is including erect the second vertical bracket that sets up and the third horizontal bracket that locates on the second vertical bracket, be equipped with first telescopic putter on the third horizontal bracket, the telescopic link of first telescopic putter stretches out downwards and is equipped with the polishing member, lower polishing mechanism is including the second telescopic putter who erects the second telescopic link and upwards stretches out and be equipped with the lower member that is used for restricting H shaped steel position, it sets up the fourth telescopic link to erect the side polishing mechanism and is equipped with the fourth telescopic link including erect the third vertical bracket and erect on the fourth horizontal bracket, the fourth telescopic link is equipped with the fourth telescopic link.

Further technical scheme is, go up polishing part including setting firmly in the first mounting panel of the telescopic link bottom of first telescopic push rod, first mounting panel bottom still has set firmly the polishing motor, goes up the output shaft of polishing motor and stretches out downwards and be connected with the spring coupling, the bottom of going up the spring coupling is connected with the pivot, go up the pivot bottom and set firmly the mounting panel, go up mounting panel bottom detachable and install the polishing piece.

The further technical scheme is, lower polishing part is including setting firmly the second mounting panel at the telescopic link top of second telescopic push rod, the upper end of second mounting panel has still set firmly down the polishing motor, and the output shaft of polishing motor upwards stretches out and is connected with down the spring coupling down, the top of spring coupling is connected with down the pivot, the lower mounting panel has set firmly down at pivot top, lower mounting panel top detachable installs down polishing piece.

Further technical scheme is, side polishing mechanism is including locating the side polishing motor on the carriage, the output axial cylinder carriage of side polishing motor one side stretches out and is connected with side spring shaft coupling, the side spring shaft coupling other end is connected with the side pivot, still be equipped with the side mounting bracket on the carriage, set firmly the axle sleeve on the side mounting bracket and set firmly the gear box, the axle sleeve is located between gear box and the side spring shaft coupling, the side pivot rotates simultaneously and wears to establish in axle sleeve and gear box, the side pivot end wears out the gear box and vertical main mounting panel that has set firmly, main mounting panel is towards the main polishing piece of detachable installation on one side of H shaped steel, fixed cover has set up the master gear in the side pivot in the gear box, the up end and the lower terminal surface of gear box all are equipped with the fixed bolster, the secondary pivot is installed in the fixed bolster rotation, secondary pivot one end rotates and wears to establish in the gear box lateral wall and is equipped with the secondary gear in the gear box, the secondary pivot other end fixedly connected with the slider, the slider other end fixedly connected with is worn to establish in the gear box, the secondary shaft end is equipped with the detachable mounting panel on the side mounting panel down the side of the side polishing motor, the secondary mounting panel has the secondary mounting panel to detachable side mounting panel down.

The limiting mechanism comprises a plurality of second transverse brackets oppositely arranged above the roller, one end of each second transverse bracket is fixedly arranged on the corresponding first transverse bracket, and the other end of each second transverse bracket is rotatably provided with a rotating wheel.

The further technical scheme is that the second transverse support is a rectangular plate, a long hole is further formed between the upper end face and the lower end face of the second transverse support, a bolt is arranged in the long hole in a sliding penetrating mode, and the rotating wheel is rotatably installed on the bolt.

The utility model has the beneficial effects that:

1. Through setting up the cylinder carriage and cooperating stop gear, the cylinder lets H shaped steel back and forth movement easier, and the runner supports the lower extreme flange board both sides of H shaped steel in order to restrict H shaped steel and moves about, can assist the back and forth movement of H shaped steel again. Meanwhile, through the arrangement of the strip holes, the distance between the rotating wheels on two sides is adjustable, so that finer adjustment can be conveniently carried out according to actual conditions, and H-shaped steel can be limited more accurately.

2. Through setting up polishing mechanism, polishing mechanism and both sides's side polishing mechanism down for when H shaped steel passes through the interval space of both ends cylinder carriage, can polish the flange plate lateral surface, the medial surface of H shaped steel simultaneously, the left surface and the right flank of web have improved polishing efficiency.

3. Through setting up electric putter and spring coupling for polishing the polishing surface of polishing piece can effectively support the H shaped steel, can avoid the motion that the electric putter produced when excessive displacement again, thereby make polishing part can compress tightly H shaped steel under certain pressure and polish, can protect polishing mechanism's overall structure and each spare part again.

4. Through setting up gear box and fourth flexible push rod for side polishing mechanism can carry out polishing operation to the medial surface of the web and the flange plate of H shaped steel simultaneously, has improved polishing efficiency.

Drawings

FIG. 1 is an overall elevational view of the present apparatus;

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B in FIG. 1;

FIG. 4 is an enlarged elevational view of the roller carriage;

fig. 5 is a general top view of the apparatus (simplified polishing mechanism).

In the figure, 1, a first vertical support, 2, a first horizontal support, 3, a roller, 4, a second horizontal support, 5, a second vertical support, 6, a third horizontal support, 7, an upper mounting frame, 8, a first telescopic push rod, 9, a first mounting plate, 10, an upper polishing motor, 11, an upper spring coupling, 12, a second telescopic push rod, 13, a second mounting plate, 14, a lower polishing motor, 15, a lower spring coupling, 16, a lower mounting plate, 17, a third vertical support, 18, a fourth horizontal support, 19, a third telescopic push rod, 20, a sliding support, 21, a side polishing motor, 22, a side spring coupling, 23, a side mounting frame, 24, an upper rotating shaft, 25, an upper mounting plate, 26, an upper polishing sheet, 27, H-shaped steel, 28, a lower rotating shaft, 29, a lower polishing sheet, 30, a side rotating shaft, 31, a shaft sleeve, 32, a gear box, 33, a fixed support, 34, a main gear, 35, an upper sub gear, 36, a lower sub gear, 37, a sub-38, a limit ring, 39, a sliding shaft, 40, a shaft, 42, a main polishing mechanism, a main polishing sheet, 48, a main polishing sheet, a main polishing mechanism, a fourth rotating shaft, a main polishing sheet, a fourth rotating shaft, a 45, a main polishing sheet, a main polishing mechanism, a fourth rotating shaft, a 45, a long rotating shaft, a 45, a polishing mechanism, a main polishing sheet, a 45, a 4, a polishing roller, a 4.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are provided below and the present utility model is further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, a steel structure surface polishing device comprises a front section roller 3 and a rear section roller 3 which are arranged at intervals along a straight line. The roller 3 conveying frame comprises a first vertical support 1 which is vertically arranged, two first transverse supports 2 are oppositely arranged at the top of the first vertical support 1, and a plurality of rollers 3 are rotatably arranged between the two first transverse supports 2.

It should be noted that, the roller 3 conveying frame is a common roller 3 conveying frame, and a person skilled in the art may use a common roller 3 conveying frame technical means when constructing the roller 3 conveying frame.

And the opposite sides of the two first transverse brackets 2 are also respectively provided with a limiting mechanism, and the two limiting mechanisms clamp and form a limiting channel for limiting the position of the H-shaped steel 27.

The limiting mechanism comprises a plurality of second transverse brackets 4 which are oppositely arranged on the first transverse brackets 2, preferably, the second transverse brackets 4 are rectangular plates, the second transverse brackets 4 are arranged above the roller 3, long strip holes 47 are formed between the upper end face and the lower end face of the second transverse brackets 4, bolts are arranged in the long strip holes 47 in a sliding and penetrating mode, and rotating wheels 46 are rotatably arranged on the bolts.

When the H-shaped steel 27 is placed on the conveying frame of the roller 3, the roller 3 can enable the H-shaped steel 27 to move forwards and backwards, the rotating wheels 46 on the left side and the right side are propped against the two sides of the lower end flange plate of the H-shaped steel 27, so that the H-shaped steel 27 is limited to move leftwards and rightwards on one hand, and the H-shaped steel 27 is assisted to move forwards and backwards on the other hand. Meanwhile, the strip holes 47 are formed, so that the distance between the rotating wheels 46 on two sides can be adjusted, finer adjustment can be conveniently performed according to actual conditions, and H-shaped steel 27 can be limited more accurately.

A polishing mechanism is arranged at the interval space between the two sections of roller 3 conveying frames, and comprises an upper polishing mechanism 49 arranged above the roller 3, a lower polishing mechanism arranged below the roller 3 and side polishing mechanisms 48 respectively arranged at the left side and the right side of the roller 3 conveying frames.

The upper polishing mechanism 49 comprises a second vertical support 5 vertically arranged and a third transverse support 6 transversely arranged on the second vertical support 5, an upper mounting frame 7 is mounted on the third transverse support 6, and a first telescopic push rod 8 is fixedly mounted on the upper mounting frame 7. Preferably, the first telescopic push rod 8 is an electric push rod, and the telescopic rod of the first telescopic push rod 8 extends downwards and is provided with an upper polishing component. The upper polishing component comprises a first mounting plate 9 fixedly mounted at the bottom of a telescopic rod of a first telescopic push rod 8, an upper polishing motor 10 is fixedly mounted at the bottom of the first mounting plate 9, an output shaft of the upper polishing motor 10 extends downwards and is connected with an upper spring coupler 11, an upper rotating shaft 24 is connected with the bottom of the upper spring coupler 11, an upper mounting plate 25 is fixedly mounted at the bottom of the upper rotating shaft 24, and an upper polishing sheet 26 is detachably mounted at the bottom of the upper mounting plate 25.

The spring coupling is a conventional spring coupling having a resilient connection that counteracts some of the impact and displacement, and the detailed structure will not be described.

When the H-shaped steel 27 passes through the space between the two sections of roller 3 conveying frames, the telescopic rod of the first telescopic push rod 8 extends downwards, so that the upper polishing component moves downwards, meanwhile, the upper polishing motor 10 is started to drive the upper mounting plate 25 to rotate, and the upper polishing piece 26 on the upper polishing plate rotates to polish the upper end face of the H-shaped steel 27. The upper spring coupling 11 can effectively absorb the movement amount generated when the first telescopic push rod 8 excessively displaces through compression, so that the upper polishing component can press the H-shaped steel 27 under a certain pressure to polish and can protect the integral structure and parts of the upper polishing mechanism 49.

The lower polishing mechanism comprises a second telescopic push rod 12 which is vertically arranged, preferably, the second telescopic push rod 12 is an electric push rod, the bottom of the second telescopic push rod 12 is fixedly arranged on the ground, and the telescopic rod of the second telescopic push rod 12 extends upwards and is provided with a lower polishing component. The lower polishing part comprises a second mounting plate 13 fixedly mounted on the top of the telescopic rod of the second telescopic push rod 12, a lower polishing motor 14 is fixedly mounted at the upper end of the second mounting plate 13, and an output shaft of the lower polishing motor 14 extends upwards and is connected with a lower spring coupler 15. The top of the lower spring coupling 15 is connected with a lower rotating shaft 28, the top of the lower rotating shaft 28 is fixedly provided with a lower mounting plate 16, and the top of the lower mounting plate 16 is detachably provided with a lower polishing sheet 29.

When the H-shaped steel 27 passes through the space between the two sections of roller 3 conveying frames, the telescopic rod of the second telescopic push rod 12 extends upwards, so that the lower polishing component moves upwards, meanwhile, the lower polishing motor 14 is started to drive the lower mounting plate 16 to rotate, and the lower polishing piece 29 on the lower polishing plate rotates to polish the lower end face of the H-shaped steel 27. The lower spring coupling 15 can effectively absorb the movement amount generated when the second telescopic push rod 12 is excessively displaced by compression per se, so that the lower polishing component can not only press the H-shaped steel 27 under a certain pressure for polishing, but also protect the lower polishing component from being damaged by impact.

The side polishing mechanism 48 comprises a third vertical support 17 which is vertically arranged on the ground, a fourth transverse support 18 which is transversely arranged on the second vertical support 5, a third telescopic push rod 19 which is fixedly arranged on the fourth transverse support 18, and a sliding frame 20 which is slidably arranged.

Preferably, the third telescopic push rod 19 is an electric push rod.

The fourth cross frame 18 may be a plate-like structure or a conventional grid-like steel frame structure, and may be formulated according to actual conditions. The carriage 20 may be a plate-like structure or a conventional grid-like steel frame structure, and may be designed according to actual conditions. The sliding structure of the sliding frame 20 and the fourth cross frame 18 may be implemented by a common sliding connection structure, such as a sliding bar and sliding groove matching structure shown in fig. 3, or other sliding bar and sliding rail structures, which will not be described in detail herein.

The telescopic rod of the third telescopic push rod 19 extends to the carriage side of the roller 3 and is connected to the carriage 20, so that the carriage 20 is pushed and pulled, and the carriage 20 is made to approach or be far away from the H-section steel 27.

The sliding frame 20 is provided with a side polishing component, the side polishing mechanism 48 comprises a side polishing motor 21 fixedly arranged on the sliding frame 20, the output shaft of the side polishing motor 21 extends out towards one side of the conveying frame of the roller 3 and is connected with a side spring coupler 22, and the other end of the side spring coupler 22 is connected with a side rotating shaft 30. The side mounting frame 23 is fixedly mounted on one side, which is close to the H-shaped steel 27, of the sliding frame 20, the shaft sleeve 31 and the cuboid gear box 32 are fixedly mounted on the side mounting frame 23, the shaft sleeve 31 is arranged between the gear box 32 and the side spring coupling 22, and the side rotating shaft 30 is simultaneously rotatably arranged in the shaft sleeve 31 and the gear box 32 in a penetrating mode. The sleeve 31 serves to fix and restrain the side rotary shaft 30, and reinforce the installation strength of the side rotary shaft 30.

The end of the side rotating shaft 30 passes through the gear box 32 and is vertically and fixedly provided with a main mounting plate 44, and the side of the main mounting plate 44 facing the H-shaped steel 27 is detachably provided with a main polishing sheet 45.

A main gear 34 is fixedly sleeved on the side rotating shaft 30 in the gear box 32, and the main gear 34 is preferably a bevel gear. The upper end face and the lower end face of the gear box 32 are fixedly provided with a fixed support 33, a secondary rotating shaft 37 is rotatably arranged in the fixed support 33, two limiting rings 38 are fixedly sleeved on the secondary rotating shaft 37, and the fixed support 33 is clamped by the two limiting rings 38, so that the secondary rotating shaft 37 is limited to move up and down. One end of the secondary rotating shaft 37 is rotatably arranged in the side wall of the gear box 32 in a penetrating way, a secondary gear is arranged in the gear box 32, the upper secondary rotating shaft 37 is provided with a last secondary gear 35, the lower secondary rotating shaft 37 is provided with a next secondary gear 36, and the secondary gear is preferably a bevel gear. The primary gear 34 is in mesh with both secondary gears. The other end of the secondary rotating shaft 37 is fixedly connected with a sliding coupler 39, the other end of the sliding coupler 39 is fixedly connected with a connecting shaft 40, the other end of the connecting shaft 40 is fixedly provided with a secondary mounting plate 41, the upper end face of the upper secondary mounting plate 41 is detachably provided with a secondary polishing sheet 42, and the lower end face of the lower secondary mounting plate 41 is detachably provided with a secondary polishing sheet 42. The upper end of the upper fixed support 33 is provided with a fourth telescopic push rod 43, the lower end of the lower fixed support 33 is provided with a fourth telescopic push rod 43, and preferably, the fourth telescopic push rod 43 is an electric push rod. The telescopic rod of the fourth telescopic push rod 43 is connected to the side of the sub mounting plate 41 facing the gear case 32.

The sliding coupling 39 is a common sliding coupling 39, and may be an oldham coupling 39 or another type of sliding coupling 39, and the sliding coupling 39 will not be described in detail here.

When the H-shaped steel 27 passes through the space between the two sections of roller 3 conveying frames, the third telescopic push rod 19 pushes the sliding frame 20 forwards, so that the main polishing piece 45 abuts against the web plate of the H-shaped steel 27, the side spring coupling 22 can effectively absorb the movement generated when the third telescopic push rod 19 is excessively displaced through compression, and therefore the side polishing component can press the H-shaped steel 27 under a certain pressure to polish and can be protected from being damaged due to impact.

The telescopic rod of the fourth telescopic push rod 43 is then pushed outwards, the sliding coupler 39 is extended, and the secondary mounting plate 41 is pushed to move towards the inner side wall of the flange plate of the H-shaped steel 27, so that the secondary polishing sheet 42 abuts against the inner side wall of the flange plate of the H-shaped steel 27. The fourth telescopic push rod 43 is a miniature electric push rod, and can be an electric push rod with the length of 5.6 cm and the model LA10-021D, so that the control precision is high, and the excessive displacement can be avoided.

Subsequently, the side polishing motor 21 is started, the side polishing motor 21 drives the side rotating shaft 30 to rotate, the side rotating shaft 30 drives the main mounting plate 44 to rotate, the side rotating shaft 30 drives the main gear 34 to rotate, the main gear 34 drives the secondary gear to rotate, the secondary gear drives the secondary rotating shaft 37 to rotate, and the secondary rotating shaft 37 drives the secondary mounting plate 41 to rotate. The side polishing part is used for simultaneously polishing the web plate at one side of the H-shaped steel 27 and the inner side wall of the flange plate.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a steel construction surface finish device, includes two sections cylinder carriages around following sharp interval setting, interval space department between two sections cylinder carriages is equipped with polishing mechanism, the cylinder carriage includes two opposition first horizontal support on the first vertical support, rotate between two first horizontal supports and install a plurality of cylinders, its characterized in that: the polishing device comprises a roller, a polishing mechanism, a first transverse support, a second transverse support, a first telescopic push rod, a second telescopic push rod, a lower polishing mechanism and a side polishing mechanism, wherein the two sides of the two first transverse supports are opposite, the limiting mechanism is respectively arranged on one side of the two first transverse supports, the limiting mechanism clamps and forms a limiting channel for limiting the position of H-shaped steel, the polishing mechanism comprises an upper polishing mechanism arranged above the roller, a lower polishing mechanism arranged below the roller, and side polishing mechanisms respectively arranged on the left side and the right side of the roller, the upper polishing mechanism comprises a second vertical support which is vertically arranged and a third transverse support which is horizontally arranged on the second vertical support, the third transverse support is vertically arranged, the first telescopic push rod is arranged on the third transverse support, the telescopic push rod of the first telescopic push rod extends downwards and is provided with an upper polishing component, the telescopic rod of the second telescopic push rod extends upwards and is provided with a lower polishing component, the telescopic rod of the second telescopic push rod is vertically arranged, the side polishing component is horizontally arranged on the second vertical support, the fourth transverse support is fixedly provided with a third telescopic push rod and a sliding frame, the telescopic rod is horizontally arranged on the fourth transverse support, and the telescopic rod of the third telescopic push rod extends towards one side of the roller and is horizontally arranged on the roller support, and the sliding frame is provided with a polishing component.

2. The steel structure surface polishing device according to claim 1, wherein: the polishing device comprises an upper polishing component and a lower polishing component, wherein the upper polishing component comprises a first mounting plate fixedly arranged at the bottom of a telescopic rod of a first telescopic push rod, an upper polishing motor is further fixedly arranged at the bottom of the first mounting plate, an output shaft of the upper polishing motor extends downwards and is connected with an upper spring coupler, an upper rotating shaft is connected to the bottom of the upper spring coupler, an upper mounting plate is fixedly arranged at the bottom of the upper rotating shaft, and an upper polishing sheet is detachably arranged at the bottom of the upper mounting plate.

3. A steel structure surface finish apparatus as claimed in claim 2, wherein: the lower polishing component comprises a second mounting plate fixedly arranged at the top of a telescopic rod of a second telescopic push rod, a lower polishing motor is further fixedly arranged at the upper end of the second mounting plate, an output shaft of the lower polishing motor extends upwards and is connected with a lower spring coupler, the top of the lower spring coupler is connected with a lower rotating shaft, a lower mounting plate is fixedly arranged at the top of the lower rotating shaft, and a lower polishing sheet is detachably arranged at the top of the lower mounting plate.

4. A steel structure surface finish apparatus according to claim 3, wherein: the utility model provides a polishing device, including locating the side polishing motor on the carriage, the output axial cylinder carriage one side of side polishing motor stretches out and is connected with side spring coupling, the side spring coupling other end is connected with the side pivot, still be equipped with the side mounting bracket on the carriage, set firmly the axle sleeve on the side mounting bracket and set firmly the gear box, the axle sleeve is located between gear box and the side spring coupling, the side pivot rotates simultaneously and wears to establish in axle sleeve and gear box, the side pivot end wears out the gear box and vertically has set firmly the main mounting panel, main mounting panel installs the main polishing piece towards detachable on one side of H shaped steel, fixed cover has set up the master gear in the side pivot in the gear box, up end and lower terminal surface of gear box all are equipped with the fixed bolster, the fixed bolster is rotated and is installed the secondary pivot, secondary pivot one end rotates and wears to establish in the gear box lateral wall and has set firmly the secondary gear in depth into the gear box, the gear box is meshed with two secondary gears simultaneously, secondary pivot other end fixedly connected with slider, the slider other end fixedly connected with connecting axle, the secondary mounting panel has the secondary mounting panel to install the secondary mounting panel on the side of the H shaped steel, the secondary mounting panel has the secondary mounting panel to dismantle the fourth side mounting panel, the secondary mounting panel has the flexible mounting panel to the secondary end face on the side of the side polishing motor.

5. A steel structure surface finishing apparatus according to any one of claims 1 to 4, wherein: the limiting mechanism comprises a plurality of second transverse brackets which are oppositely arranged above the roller, one end of each second transverse bracket is fixedly arranged on the corresponding first transverse bracket, and the other end of each second transverse bracket is rotatably provided with a rotating wheel.

6. The steel structure surface polishing device according to claim 5, wherein: the second transverse support is a rectangular plate, a long hole is further formed between the upper end face and the lower end face of the second transverse support, a bolt is arranged in the long hole in a sliding mode, and the rotating wheel is rotatably installed on the bolt.