CN113199367A

CN113199367A - Round steel surface rust removal mechanism

Info

Publication number: CN113199367A
Application number: CN202110508185.7A
Authority: CN
Inventors: 秦国贤
Original assignee: Shaoxing Sanxiong Steel Structure Co ltd
Current assignee: Shaoxing Sanxiong Steel Structure Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-08-03

Abstract

A rust removing mechanism for the surface of round steel belongs to the technical field of rust removing equipment; the two groups of support groups are arranged to control the short air cylinders in the four groups of telescopic mechanisms to extend out or retract, so that the corresponding Z-shaped support plates can be stretched out and drawn back and forth, the round steel pipe or the rectangular steel pipe can be clamped, the steel to be painted can be supported, the abrasive belt is arranged to derust the round steel by utilizing the abrasive belt, the abrasive belt is convenient to replace after being worn, the cost of the abrasive belt is lower, the abrasive belt mechanism is arranged, the driving belt wheel is driven to rotate by the driving of a third driving motor, so that the abrasive belt is driven to rotate, the derusting of the outer ring surface of the round steel is realized by the rotation of the abrasive belt, the abrasive belt between the two large driven belt wheels can be stretched after being attached to the round steel when the telescopic electric cylinders extend out to drive the abrasive belt mechanism to be close to the round steel, and the abrasive belt is always in a tight state by utilizing the elasticity of the compression springs in the abrasive belt group, the rust removal quality is not reduced.

Description

Round steel surface rust removal mechanism

Technical Field

The invention belongs to the technical field of rust removing equipment, and particularly relates to a round steel surface rust removing mechanism.

Background

One of the main building structure types of steel engineering is one of the more common structure forms in modern building engineering; steel materials on the market are usually placed in the open air, so the outer surface is easy to rust; for example, the conveying pipeline of the water-vapor mixture used in the super-large power station boiler needs to be derusted during welding; however, the existing rust removal method in some small-sized factories is an old method which is usually eliminated by rubbing with sand paper by workers, and the mode has too low working efficiency; therefore, in order to improve the efficiency and the rust removal quality, the rust removal device for the steel on the market usually performs rust removal processing through a shot blasting machine, but the following problems can be encountered in the using process; 1. the shot blasting machine has large volume, the shot blasting or sand blasting can not be completely recovered, and the sand blasting needs to be replaced regularly; 2. the working space of the shot blasting machine is a rated space, and is difficult to realize for steel pieces and conveying pipelines with larger sizes.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a round steel surface rust removing mechanism.

The technical problem of the invention is mainly solved by the following technical scheme: a round steel surface rust removing mechanism comprises a rust removing part and a supporting part, wherein the supporting part comprises a bottom plate, two groups of movable sliding groups are arranged on the upper surface of the bottom plate in parallel and respectively comprise a first support plate and a sliding rail, the first support plate is arranged at multiple equal intervals, the sliding rail is arranged at the upper end of the first support plate, two sliding blocks are arranged on each sliding rail in a sliding manner, a group of support groups are respectively arranged between the front end and the rear end of each group of movable sliding groups and are oppositely arranged, the two groups of support groups are identical in structure, the support group at the front side comprises a second support plate, the upper end of the second support plate is rotatably connected with a rotating shaft, the rear end of the rotating shaft is fixedly connected with a hexagonal mounting block, the front end of the rotating shaft is fixedly connected with a first driving belt pulley, four groups of telescopic mechanisms are arranged on the hexagonal mounting block, and each group of telescopic mechanisms comprises a short mounting plate connected with the hexagonal mounting block, be equipped with the little slide bar of two seconds on the short mounting panel side by side, two be equipped with a short cylinder on the short mounting panel of the little slide bar rear side of second, the stretching out of short cylinder serves a Z style of calligraphy fagging of fixedly connected with, the front end of Z style of calligraphy fagging is slided and is joined in marriage on two little slide bars of second.

Preferably, a first motor mounting plate is arranged on the front end face of the second support plate in the front side support group, a driving motor is arranged on the first motor mounting plate, a second driving belt wheel is arranged on an output shaft of the driving motor, and a first transmission belt is connected between the first driving belt wheel and the second driving belt wheel.

Preferably, a first chain wheel is rotatably connected to the bottom plate on the rear side of the supporting group on the front side, a first direction changer is arranged on the bottom plate on the front side of the supporting group on the rear side, a second driving motor is arranged at the input end of the first direction changer, a second chain wheel is fixedly connected to the output end of the first direction changer, and a transmission chain is connected between the first chain wheel and the second chain wheel.

Preferably, the derusting portion comprises four supporting cages, connecting plates are connected between the front ends and the rear ends of every two adjacent supporting cages, the front ends and the rear ends of every two lower supporting cages are respectively connected with two sliding blocks of a movable sliding group, a group of first derusting groups are respectively arranged between the front ends of the two upper supporting cages and between the front ends of the two lower supporting cages, a group of second derusting groups are respectively arranged between the rear ends of the two right supporting cages and between the rear ends of the two left supporting cages, the first derusting groups and the second derusting groups are identical in structure, and the two groups of first derusting groups and the two groups of second derusting groups are arranged oppositely.

Preferably, the first rust removing device comprises a mounting frame connected with two side supporting cages, two first mounting rods are erected in the mounting frame, a telescopic electric cylinder is arranged on each of the two first mounting rods, a sand belt mechanism is arranged on the lower side of each of the two telescopic electric cylinders, each sand belt mechanism comprises two U-shaped supports arranged in parallel, two second mounting rods are connected between the upper ends of the two U-shaped supports, the extending ends of the two telescopic electric cylinders are fixedly connected to the two second mounting rods respectively, a vertical plate is arranged between the middle position of the U-shaped support on the front side and the middle position of the U-shaped support on the rear side, a third driving belt wheel and a fourth driving belt wheel are rotatably connected to the vertical plate on the rear side, a second transmission belt is connected between the third driving belt wheel and the fourth driving belt wheel, and a second motor mounting plate is connected between the lower ends of the two vertical plates, the second motor mounting plate is provided with a third driving motor, the third driving belt wheel is fixedly connected with an output shaft of the third driving motor, a driving belt wheel is rotatably connected between the middle positions of the two U-shaped supports, a small driven belt wheel and a large driven belt wheel are rotatably connected between the left end and the right end of the two U-shaped supports, abrasive belts are connected among the driving belt wheel, the two small driven belt wheels and the two large driven belt wheels, the small driven belt wheel is arranged on the upper side of the large driven belt wheel, the fourth driving belt wheel is fixedly connected with the driving belt wheel, and a group of pressing wheel sets is erected between the left side and the right side of the two U-shaped supports.

Preferably, the press wheel group comprises a base connected with two U-shaped supports, two chute plates are fixed on the base, guide grooves are formed in the two chute plates, a short plate is connected between the upper ends of the two chute plates, a first guide column penetrates through the short plates, a sliding frame is arranged between the two sliding groove plates in a sliding manner, the lower end of the first guide column is fixedly connected to the sliding frame, the sliding frame is provided with two guide pins matched with the guide grooves, the guide pins are matched in the corresponding guide grooves in a sliding way, the upper end of the first guide post is matched on the sliding seat in a sliding way, a compression spring is sleeved on the first guide post between the short plate and the sliding frame, the upper end of the compression spring is abutted to the short plate, the lower end of the compression spring is abutted to the sliding frame, the lower end of the sliding frame is rotatably connected with a pressing wheel, and the pressing wheel is abutted to the abrasive belt.

Preferably, a frame plate is connected between the left side and the right side of each of the two U-shaped supports, a guide sliding cylinder is vertically arranged on each frame plate, a second guide column is respectively arranged at the position, corresponding to the two guide sliding cylinders, of the lower surface of the mounting frame, and the second guide columns are arranged in the two guide sliding cylinders in a sliding mode.

Preferably, the middle positions of the connecting plates between the front end and the rear end of the two supporting cages on the lower side are both connected with a short connecting plate, and the lower ends of the two short connecting plates are both fixedly connected to the transmission chain.

The invention has the following beneficial effects: the two groups of support groups are arranged to control the short air cylinders in the four groups of telescopic mechanisms to extend out or retract, so that the corresponding Z-shaped support plates can be stretched out and drawn back inside and outside, the clamping of round steel pipes or rectangular steel pipes is realized, the steel to be painted plays a role in supporting, the abrasive belt is arranged to derust the round steel by utilizing the abrasive belt, the abrasive belt is convenient to replace after being worn, the cost of the abrasive belt is low, the guide pin is arranged to be in sliding fit with the guide groove of the sliding chute plate in a sliding way by arranging the guide pin, the accurate movement of the pressing wheel is realized by playing a role in guiding when the sliding frame slides, the extension and retraction of the telescopic electric cylinders are controlled by arranging the two telescopic electric cylinders, the inside and outside movement of the abrasive belt mechanism is realized, the contact area of the abrasive belt and the round steel can be adjusted by the inside and outside movement of the abrasive belt mechanism, the round steel with different pipe diameters can be processed, the driving belt wheel is driven to rotate by the third driving motor by arranging the abrasive belt mechanism, the abrasive belt is driven to rotate, the abrasive belt outer ring surface is derusted through rotation of the abrasive belt, the abrasive belt between the two large driven belt wheels can be stretched after being attached to the round steel by arranging the pressing wheel group when the telescopic electric cylinder extends out to drive the abrasive belt mechanism to approach the round steel, the elastic force of a compression spring in the pressing wheel group is utilized, the pressing wheel of the abrasive belt mechanism is enabled to be supported on the abrasive belt no matter where the position is, the abrasive belt is always in a tight state, and derusting quality is not reduced.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a schematic perspective view of a belt mechanism of the present invention;

fig. 3 is a rear view of the mechanism of the belt mechanism of the present invention.

In the figure: 1. a base plate; 2. a first support plate; 3. a slide rail; 4. a slider; 5. a second support plate; 6. a rotating shaft; 7. a hexagonal mounting block; 8. a first drive pulley; 9. a short mounting plate; 10. a second small slide bar; 11. a short cylinder; 12. a Z-shaped supporting plate; 13. a first motor mounting plate; 14. a drive motor; 15. a second drive pulley; 16. a first drive belt; 17. a first sprocket; 18. a first direction changer; 19. a second drive motor; 20. a second sprocket; 21. a drive chain; 22. a support cage; 23. a connecting plate; 24. a shorting plate; 25. a mounting frame; 26. a first mounting bar; 27. a telescopic electric cylinder; 28. a U-shaped bracket; 29. a second mounting bar; 30. a vertical plate; 31. a third drive pulley; 32. a fourth drive pulley; 33. a second motor mounting plate; 34. a third drive motor; 35. a driving pulley; 36. a small driven pulley; 37. a large driven pulley; 38. an abrasive belt; 39. a base; 40. a chute plate; 41. a guide groove; 42. a short plate; 43. a first guide post; 44. a carriage; 45. a guide pin; 46. a compression spring; 47. a pinch roller; 48. a guide slide cylinder; 49. a second guide post; 50. a second drive belt; 51. a frame plate.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): a round steel surface rust removing mechanism is shown in figures 1-3 and comprises a rust removing part and a supporting part, wherein the supporting part comprises a bottom plate 1, two groups of movable sliding groups are arranged on the upper surface of the bottom plate 1 in parallel, each group of movable sliding groups comprises a first support plate 2 and a slide rail 3, the first support plates 2 are arranged at equal intervals, the slide rails 3 are arranged at the upper ends of the first support plates 2, two sliding blocks 4 are arranged on each slide rail 3 in a sliding mode, a group of support groups are respectively arranged between the front end and the rear end of each group of movable sliding groups, the two groups of support groups are arranged oppositely, the structures of the two groups of support groups are identical, the support group at the front side comprises a second support plate 5, the upper end of the second support plate 5 is rotatably connected with a rotating shaft 6, the rear end of the rotating shaft 6 is fixedly connected with a hexagonal mounting block 7, the front end of the rotating shaft 6 is fixedly connected with a first driving belt pulley 8, four groups of telescopic mechanisms are arranged on the hexagonal mounting block 7, each group of telescopic mechanisms comprises a short mounting plate 9 connected with the hexagonal mounting block 7, two second small slide bars 10 are arranged on the short mounting plate 9 in parallel, a short air cylinder 11 is arranged on the short mounting plate 9 behind the two second small slide bars 10, a Z-shaped supporting plate 12 is fixedly connected to the extending end of the short air cylinder 11, the front end of the Z-shaped supporting plate 12 is slidably matched on the two second small slide bars 10, and the short air cylinders 11 in the four groups of telescopic mechanisms are controlled to extend or retract by arranging two groups of supporting groups, so that the corresponding Z-shaped supporting plate 12 can be stretched inside and outside, the clamping of a circular steel pipe or a rectangular steel pipe is realized, and the steel product to be treated is supported; a first motor mounting plate 13 is arranged on the front end face of the second support plate 5 in the front side support group, a driving motor 14 is arranged on the first motor mounting plate 13, a second driving belt wheel 15 is arranged on an output shaft of the driving motor 14, and a first transmission belt 16 is connected between the first driving belt wheel 8 and the second driving belt wheel 15; the front side support group is connected with a first chain wheel 17 on the bottom plate 1 of rear side in a rotating mode, the rear side support group is provided with a first deviator 18 on the bottom plate 1 of the front side, a second driving motor 19 is arranged on the input end of the first deviator 18, a second chain wheel 20 is fixedly connected to the output end of the first deviator 18, and a transmission chain 21 is connected between the first chain wheel 17 and the second chain wheel 20.

The rust removing portion comprises four supporting cages 22, two adjacent supporting cages 22 are connected with a connecting plate 23 between the front end and the rear end, the lower side of each supporting cage 22 is connected with two sliding blocks 4 of a movable sliding group, the upper side of each supporting cage 22 is connected with two sliding blocks 4 of the movable sliding group, the front end and the rear end of each supporting cage 22 are provided with a group of first rust removing groups, the right side of each supporting cage 22 is connected with two left supporting cages 22 between the rear ends, a group of second rust removing groups are arranged between the rear ends of the supporting cages 22, the first rust removing groups are identical to the second rust removing groups in structure and are two groups, and the first rust removing groups and the second rust removing groups are arranged oppositely.

The first rust removing device comprises a mounting frame 25 connected with two side supporting cages 22, two first mounting rods 26 are erected in the mounting frame 25, a telescopic electric cylinder 27 is arranged on each of the two first mounting rods 26, the telescopic electric cylinders 27 are arranged to control the extension and retraction of the telescopic electric cylinders 27, so that the inner and outer movement of an abrasive belt mechanism is realized, the contact area of an abrasive belt 38 and round steel can be adjusted through the inner and outer movement of the abrasive belt mechanism, the round steel with different pipe diameters can be processed, an abrasive belt mechanism is arranged on the lower sides of the two telescopic electric cylinders 27, a driving belt wheel 35 is driven to rotate through the driving of a third driving motor 34 through the arrangement of the abrasive belt mechanism, so that the abrasive belt 38 is driven to rotate, the rust removing of the outer ring surface of the round steel is realized through the rotation of the abrasive belt 38, the abrasive belt mechanism comprises two U-shaped supports 28 arranged in parallel, and two second mounting rods 29 are connected between the upper ends of the two U-shaped supports 28, the extending ends of the two telescopic electric cylinders 27 are respectively and fixedly connected to two second mounting rods 29, a vertical plate 30 is arranged at the middle position of the U-shaped support 28 at the front side and the middle position of the U-shaped support 28 at the rear side, a third driving belt wheel 31 and a fourth driving belt wheel 32 are rotatably connected to the vertical plate 30 at the rear side, a second transmission belt 50 is connected between the third driving belt wheel 31 and the fourth driving belt wheel 32, a second motor mounting plate 33 is connected between the lower ends of the two vertical plates 30, a third driving motor 34 is arranged on the second motor mounting plate 33, the third driving belt wheel 31 is fixedly connected with an output shaft of the third driving motor 34, a driving belt wheel 35 is rotatably connected between the middle positions of the two U-shaped supports 28, and a small driven belt wheel 36 and a large driven belt wheel 37 are rotatably connected between the left end and the right end of the two U-shaped supports 28, an abrasive belt 38 is connected among the driving pulley 35, the two small driven pulleys 36 and the two large driven pulleys 37, by arranging the abrasive belt 38 and utilizing the abrasive belt 38 to remove rust on the round steel, the abrasive belt 38 is convenient to replace after being worn, and the cost of using the abrasive belt 38 is low, the small driven pulley 36 is provided on the upper side of the large driven pulley 37, the fourth driving pulley 32 is fixedly connected with the driving pulley 35, a group of pressing wheel sets are respectively erected between the left side and the right side of the two U-shaped brackets 28, and by arranging the pressing wheel sets, when the telescopic electric cylinder 27 extends out to drive the abrasive belt mechanism to approach to the round steel, the abrasive belt 38 between the two large driven belt wheels 37 is stretched after being attached to the round steel, the elastic force of the compression spring 46 in the pressure wheel set is utilized to enable the pressure wheel 47 of the abrasive belt mechanism to be abutted against the abrasive belt 38 at any position, the abrasive belt 38 is always in a tight state, and the rust removal quality is not reduced.

The press wheel group comprises a base 39 connected with two U-shaped brackets 28, two sliding groove plates 40 are fixed on the base 39, guide grooves 41 are respectively arranged on the two sliding groove plates 40, a short plate 42 is connected between the upper ends of the two sliding groove plates 40, a first guide post 43 is penetrated in the short plate 42, a sliding frame 44 is slidably arranged between the two sliding groove plates 40, the lower end of the first guide post 43 is fixedly connected to the sliding frame 44, two guide pins 45 matched with the guide grooves 41 are arranged on the sliding frame 44, the guide pins 45 are slidably arranged in the guide grooves 41 of the sliding groove plates 40 by arranging the guide pins 45, the sliding frame 44 plays a role of guiding when sliding, so that the accurate movement of a press wheel 47 is realized, the guide pins 45 are slidably arranged in the corresponding guide grooves 41, the upper end of the first guide post 43 is slidably arranged on a sliding seat, and a compression spring 46 is sleeved on the first guide post 43 between the short plate 42 and the sliding frame 44, the upper end of the compression spring 46 abuts against the short plate 42, the lower end of the compression spring 46 abuts against the sliding frame 44, the lower end of the sliding frame 44 is rotatably connected with a pressing wheel 47, and the pressing wheel 47 abuts against the abrasive belt 38.

A frame plate 51 is connected between the left side and the right side of each of the two U-shaped brackets 28, a guide sliding cylinder 48 is vertically arranged on each frame plate 51, a second guide column 49 is respectively arranged at the position, corresponding to the two guide sliding cylinders 48, of the lower surface of the mounting frame 25, and the two second guide columns 49 are respectively matched in the two guide sliding cylinders 48 in a sliding manner; the connecting plate 23 intermediate position between both ends all is connected with a short connecting plate 24 around two support cage 22 of downside, and the equal fixed connection of lower extreme of two short connecting plate 24 is on drive chain 21.

Firstly, controlling a driving transmission chain 21 of a second driving motor 19 to rotate, driving a rust removing part to move to the foremost end of a slide rail 3 by the rotation of the transmission chain 21, erecting steel materials to be rust removed through two groups of supporting groups, fixing the steel materials to be rust removed by extending out of a short cylinder 11, driving a rotating shaft 6 to rotate by controlling a driving motor 14 to rotate, driving a hexagonal mounting block 7 to rotate by the rotation of the rotating shaft 6 so as to drive the steel materials to rotate, adjusting the position of an abrasive belt mechanism by controlling the extending out of a telescopic electric cylinder 27, attaching a U-shaped bracket 38 to the surface of the steel materials to be machined, controlling a third driving motor 34 to rotate after adjusting the rotation, driving a driving belt wheel 35 to rotate by the rotation of the driving belt wheel 35 through a second driving belt 50, driving an abrasive belt 38 to rotate by the rotation of the driving belt 35, removing the rust on the surface of the steel materials by the high-speed rotation of the abrasive belt 38, the first rust removal group derusts the upper and lower both sides of steel, and two sets of the second rust removal group derusts the left and right sides of steel, and two sets of first rust removal group and two sets of the second rust removal group is in the in-process of derusting steel, and the rust removal portion removes through the radial of 21 drive eye steel, realizes the quick rust removal of steel.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a round steel surface rust cleaning mechanism, includes rust cleaning portion and supporting part, its characterized in that: the supporting part comprises a bottom plate (1), the upper surface of the bottom plate (1) is provided with two groups of movable sliding groups in parallel, each group of movable sliding groups comprises a first support plate (2) and a sliding rail (3) which are arranged at the upper ends of the first support plates (2), each sliding rail (3) is provided with two sliding blocks (4) in a sliding manner, a group of supporting groups is respectively arranged between the front end and the rear end of each group of movable sliding groups, the two groups of supporting groups are oppositely arranged and have the same structure, the supporting group at the front side comprises a second support plate (5), the upper end of the second support plate (5) is rotatably connected with a rotating shaft (6), the rear end of the rotating shaft (6) is fixedly connected with a hexagonal mounting block (7), the front end of the rotating shaft (6) is fixedly connected with a first driving belt pulley (8), and the hexagonal mounting block (7) is provided with four groups of telescopic mechanisms, every group telescopic machanism includes short mounting panel (9) that one is connected with hexagon installation piece (7), be equipped with two little slide bars of second (10) on short mounting panel (9) side by side, two be equipped with a short cylinder (11) on short mounting panel (9) of the little slide bar of second (10) rear side, the stretching out of short cylinder (11) is served fixedly connected with a Z style of calligraphy fagging (12), the front end cunning of Z style of calligraphy fagging (12) is joined in marriage on two little slide bars of second (10).

2. The round steel surface rust removing mechanism as claimed in claim 1, which is characterized in that: the front side is equipped with a first motor mounting panel (13) on the preceding terminal surface of second extension board (5) in the support group, be equipped with driving motor (14) on first motor mounting panel (13), be equipped with second driving pulley (15) on the output shaft of driving motor (14), be connected with first driving belt (16) between first driving pulley (8) and second driving pulley (15).

3. The round steel surface rust removing mechanism as claimed in claim 2, characterized in that: the front side support group is rotated on the bottom plate (1) of rear side and is connected with a first sprocket (17), the rear side be equipped with first deviator (18) on supporting the bottom plate (1) of group front side, be equipped with second driving motor (19) on the input of first deviator (18), fixedly connected with second sprocket (20) on the output of first deviator (18), be connected with between first sprocket (17) and second sprocket (20) driving chain (21).

4. The round steel surface rust removing mechanism as claimed in claim 1, which is characterized in that: the rust removing portion comprises four supporting cages (22), two adjacent supporting cages (22) are connected with a connecting plate (23) between the front end and the rear end of each supporting cage (22), the lower side of each supporting cage (22) is connected with two sliding blocks (4) of a movable sliding group respectively, the upper side of each supporting cage is connected with two sliding blocks (4) of the movable sliding group respectively, a set of first rust removing group is arranged between the front ends of the supporting cages (22) and between the front ends of the two supporting cages (22) of the lower side of each supporting cage, the right side of each supporting cage is connected with two left ends of the supporting cages (22), a set of second rust removing group is arranged between the rear ends of the supporting cages (22), the first rust removing group and the second rust removing group are identical in structure, and the first rust removing group and the second rust removing group are arranged in an opposite mode.

5. The round steel surface rust removing mechanism as claimed in claim 4, characterized in that: the first rust removing device comprises an installation frame (25) connected with support cages (22) at two sides, two first installation rods (26) are erected in the installation frame (25), a telescopic electric cylinder (27) is arranged on each first installation rod (26), a sand belt mechanism is arranged at the lower side of each telescopic electric cylinder (27), each sand belt mechanism comprises two U-shaped supports (28) arranged in parallel, two second installation rods (29) are connected between the upper ends of the two U-shaped supports (28), the extending ends of the two telescopic electric cylinders (27) are fixedly connected to the two second installation rods (29) respectively, a vertical plate (30) is arranged at the middle position of the U-shaped support (28) at the front side and the middle position of the U-shaped support (28) at the rear side, and a third driving belt wheel (31) and a fourth driving belt wheel (32) are rotatably connected to the vertical plate (30) at the rear side, a second transmission belt (50) is connected between the third driving belt wheel (31) and the fourth driving belt wheel (32), a second motor mounting plate (33) is connected between the lower ends of the two vertical plates (30), a third driving motor (34) is arranged on the second motor mounting plate (33), the third driving belt wheel (31) is fixedly connected with an output shaft of the third driving motor (34), a driving belt wheel (35) is rotatably connected between the middle positions of the two U-shaped supports (28), a small driven belt wheel (36) and a large driven belt wheel (37) are rotatably connected between the left end and the right end of the two U-shaped supports (28), abrasive belts (38) are connected between the driving belt wheel (35), the two small driven belt wheels (36) and the two large driven belt wheels (37), and the small driven belt wheel (36) is arranged on the upper side of the large driven belt wheel (37), the fourth driving belt wheel (32) is fixedly connected with the driving belt wheel (35), and a group of pressure wheel sets are erected between the left side and the right side of the two U-shaped supports (28).

6. The round steel surface rust removing mechanism of claim 5, which is characterized in that: the pressing wheel set comprises a base (39) connected with two U-shaped supports (28), two sliding groove plates (40) are fixed on the base (39), guide grooves (41) are formed in the two sliding groove plates (40), a short plate (42) is connected between the upper ends of the two sliding groove plates (40), a first guide pin (43) penetrates through the short plate (42), a sliding frame (44) is slidably arranged between the two sliding groove plates (40), the lower end of the first guide pin (43) is fixedly connected onto the sliding frame (44), two guide pins (45) matched with the guide grooves (41) are arranged on the sliding frame (44), the guide pins (45) are slidably matched in the corresponding guide grooves (41), the upper end of the first guide pin (43) is slidably matched on the sliding seat, and a compression spring (46) is sleeved on the first guide pin (43) between the short plate (42) and the sliding frame (44), the upper end of the compression spring (46) abuts against the short plate (42), the lower end of the compression spring (46) abuts against the sliding frame (44), the lower end of the sliding frame (44) is rotatably connected with a pressing wheel (47), and the pressing wheel (47) abuts against the abrasive belt (38).

7. The round steel surface rust removing mechanism of claim 5, which is characterized in that: two respectively be connected with a frame plate (51) between the left and right sides of U type support (28), all vertically be equipped with one direction slide cartridge (48) on frame plate (51), the position that the lower surface of mounting bracket (25) and two direction slide cartridges (48) correspond respectively is equipped with a second guide post (49), two second guide post (49) are all the sliding fit in two direction slide cartridges (48).

8. The round steel surface rust removing mechanism of claim 5, which is characterized in that: the middle positions of the connecting plates (23) between the front end and the rear end of the two supporting cage frames (22) on the lower side are both connected with a short connecting plate (24), and the lower ends of the two short connecting plates (24) are fixedly connected to the transmission chain (21).