Steel bar on-site derusting machine for culvert construction

Abstract

The utility model provides an on-site steel bar derusting machine for culvert construction, and solves the problems that a steel wire brush disc in a derusting mechanism is abraded after being used for a period of time in the use process, the derusting effect on steel bars is influenced, the steel wire brush disc needs to be frequently replaced, the derusting work on the steel bars is influenced, and the operation is very inconvenient. The second adjusting mechanism capable of adjusting the height of the two discharging plates is arranged to adjust the height of the rusted reinforcing steel bar entering the derusting machine, and the steel wire brush disc which extends in the vertical direction and has a certain height is arranged, so that after the steel wire brush disc is used for a long time, when part of layers are abraded, the rusted reinforcing steel bar cannot be damaged. The height of the rusted reinforcing steel bar entering the derusting machine is adjusted through the second adjusting mechanism, the steel wire brush disc can continue to conduct derusting operation on the rusted reinforcing steel bar, the situation that the abraded steel wire brush disc influences the derusting effect on the reinforcing steel bar is avoided, meanwhile, the replacement frequency of the steel wire brush disc can be reduced, and the derusting efficiency of the reinforcing steel bar can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar rust removal, in particular to a steel bar on-site rust removal machine for culvert construction. Background Art

[0002] Culverts refer to drainage channels (water passages) built under the roadbed and below the road surface in order to allow the highway to pass through the canal smoothly without hindering traffic during highway construction. Through this structure, water can flow under the highway. It is used to drain floods across natural valleys and depressions, or to cross large and small roads as a vertical traffic channel for people, livestock and vehicles, or as a canal for farmland irrigation. Culverts are mainly composed of a tunnel body, foundation, end and wing walls, etc. Culverts are based on the principle of communicating vessels and are usually built with materials such as bricks, stones, concrete and reinforced concrete.

[0003] A large amount of steel bars are required for culvert construction. Since most culverts are located in the wild and the surrounding environment is humid, the steel bars are prone to corrosion and rust. Therefore, a steel bar on-site rust removal machine is needed to remove the rust from the steel bars. In the prior art, a steel bar rust removal device for construction engineering is disclosed in a Chinese patent with publication number CN215788968U, which includes a rust removal machine body, which includes a box body with an open structure at the upper end; a collection device is installed on the upper surface of the box body, and a wire disc rotates to brush off the rust on the surface of the steel bar. The fallen rust falls through the filter plate to the arc plate, and under the action of the arc plate, the rust waste is collected in the direction of the round tube.

[0004] Although this solution can collect the rust produced after the steel bars are derusted, during use, the wire brush disc in the rust removal mechanism will wear out after a period of use, affecting the rust removal effect on the steel bars. The wire brush disc needs to be replaced frequently, affecting the rust removal work on the steel bars, which is very inconvenient. Utility Model Content

[0005] In order to solve the problem in the background technology that during use, the wire brush disc in the rust removal mechanism will be worn after being used for a period of time, affecting the rust removal effect on the steel bars, and the wire brush disc needs to be replaced frequently, which affects the rust removal work on the steel bars and is very inconvenient, the utility model proposes a steel bar on-site rust removal machine for culvert construction.

[0006] The technical scheme of the utility model is: a steel bar on-site rust removal machine for culvert construction, comprising a bottom box with an upper opening structure, a plurality of rollers rotatably arranged at the bottom of the bottom box, a fixing plate fixed at the opening of the bottom box, two groups of front and rear wire brush discs rotatably arranged above the fixing plate, each group of wire brush discs is provided with two wire brush discs, the wire brush discs extend in the up-down direction, and the two groups of wire brush discs are staggered left and right;

[0007] A first rotary drive device is provided in the bottom box, and the first rotary drive device is connected to the wire brush disc at the rear. A second rotary drive device is provided in the bottom box, and the second rotary drive device is connected to the wire brush disc at the front.

[0008] Both left and right ends of the fixed plate are horizontally provided with material discharge plates, a second adjusting mechanism is provided on the bottom box, the material discharge plates are arranged on the second adjusting mechanism, and the second adjusting mechanism is used to adjust the height of the two material discharge plates.

[0009] Preferably, the second adjustment mechanism comprises a flat plate fixedly arranged on the right side of the bottom box, a second screw rod extending upward is rotatably arranged on the flat plate, and a bottom end of the second screw rod rotates through the flat plate and is fixedly provided with a second rotating handle;

[0010] A vertical plate extending downward is fixedly provided on the discharge plate, a first connecting column is provided at the bottom end of the vertical plate, a second internally threaded sleeve is fixedly provided at the right end of the first connecting column, and the second screw is threadedly inserted into the second internally threaded sleeve; a connecting rod is fixedly provided between the two vertical plates, and second sliding grooves extending in the up-and-down direction and transparent from left to right are provided on the left and right sides of the bottom box, and the connecting rod is slidably inserted into the second sliding groove.

[0011] Preferably, the first rotation drive device is used to drive the wire brush disc located at the rear to rotate. Specifically, a partition is fixedly provided at the bottom of the fixed plate, and the partition is centered front and rear. A first mounting plate is fixedly provided between the partition and the rear side wall of the bottom box. The first rotation drive device includes two first rotating shafts rotatably arranged between the fixed plate and the first mounting plate. A first driving motor is fixedly provided at the bottom of the first mounting plate. The output shaft of the first driving motor rotates through the first mounting plate and is fixedly connected to one of the first rotating shafts. The top of the first rotating shaft rotates through the fixed plate and is fixedly connected to the wire brush disc located at the rear. First sprockets are fixedly provided on the two first rotating shafts, and first chains are meshed on the two first sprockets.

[0012] Preferably, a second rotation drive device is provided in the bottom box, and the second rotation drive device is transmission-connected to the wire brush disc located in the front, and the second rotation drive device is used to drive the wire brush disc located in the front to rotate. Specifically, two second mounting plates spaced apart up and down are provided between the partition and the rear side wall of the bottom box, and the second rotation drive device includes a second rotating shaft rotatably arranged between the two second mounting plates, and a second driving motor is fixedly provided at the bottom of the second mounting plate located at the bottom, and the output shaft of the second driving motor rotates through the second mounting plate and is fixedly connected to one of the second rotating shafts, and the top of the second rotating shaft rotates through the second mounting plate and the fixed plate located at the top in turn and is fixedly connected to the wire brush disc located in the front; second sprockets are fixedly provided on the two second rotating shafts, and second chains are meshed on the two second sprockets.

[0013] Preferably, a connecting plate is fixed between the left and right ends of the two second mounting plates, a sleeve is fixed on the connecting plate, and two guide rods spaced apart from each other are fixed between the partition plate and the front side wall of the bottom box, and the guide rods are slidably inserted into the sleeves;

[0014] The bottom box is provided with a first adjusting mechanism, and the first adjusting mechanism is used for adjusting the distance between the front and rear groups of wire brush discs.

[0015] Preferably, two first sliding grooves are provided on the fixed plate, and the second rotating shaft is arranged in the first sliding grooves;

[0016] The first adjustment mechanism includes a first screw that is rotatably arranged between the partition and the front side wall of the bottom box. The front end of the first screw passes through the bottom box and is fixed with a first handle. The bottom of the second mounting plate located below is fixed with a first internally threaded sleeve, and the first screw is threadedly arranged in the first internally threaded sleeve.

[0017] Preferably, a guide plate is fixedly provided on the material placing plate on the right, a fixing column is provided on the material placing plate on the right, and the guide plate and the fixing column are spaced apart from each other in front and back;

[0018] A shell with a lower opening structure is fixedly arranged on the top of the bottom box, a feed hole is arranged on the right side of the shell, and a discharge hole is arranged on the left side of the shell, and the feed hole and the discharge hole correspond to each other on the left and right.

[0019] Preferably, a third slide groove extending in the front-to-back direction and being transparent up and down is provided on the discharge plate, the fixed column is slidably inserted into the third slide groove, the bottom end of the fixed column passes through the third slide groove and is fixedly provided with a second connecting column, and a fourth slide groove which is transparent left and right and extending in the front-to-back direction is provided on the right side of the bottom box, the second connecting column is slidably inserted into the fourth slide groove, the left end of the second connecting column passes through the fourth slide groove and is fixedly provided on the connecting plate located on the right.

[0020] Preferably, a shell with a lower opening structure is fixedly provided on the top of the bottom box, a feed hole is provided on the right side of the shell, and a discharge hole is provided on the left side of the shell, and the feed hole and the discharge hole correspond to each other on the left and right.

[0021] Advantages of the utility model: the utility model adjusts the height of the rusty steel bars entering the rust removal machine by providing a second adjusting mechanism capable of adjusting the height of the two discharge plates, and provides a wire brush disc having a certain height extending in the up and down directions, so that the rusty steel bars can be derusted at different heights of the wire brush disc. When the wire brush disc is worn on some surfaces after long-term use, the second adjusting mechanism adjusts the height of the rusty steel bars entering the rust removal machine, so that the wire brush disc can continue to derust the rusty steel bars, thereby avoiding the influence of the worn wire brush disc on the rust removal effect on the steel bars. At the same time, the replacement frequency of the wire brush disc can be reduced, thereby improving the rust removal efficiency of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 For this utility model Figure 1 Another perspective structural diagram of;

[0025] Figure 3 For this utility model Figure 1 Schematic diagram of the structure after removing the shell;

[0026] Figure 4 It is a front cross-sectional view of the structure of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the first rotary drive device of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the second rotary drive device of the utility model;

[0029] Figure 7 For this utility model Figure 1 A magnified view of the structure in the middle.

[0030] In the figure: 1, bottom box; 2, roller; 3, fixed plate; 4, wire brush plate; 5, partition; 6, first mounting plate; 701, first rotating shaft; 702, first driving motor; 703, first sprocket; 704, first chain; 8, second mounting plate; 901, second rotating shaft; 902, second driving motor; 903, second sprocket; 904, second chain; 10, connecting plate; 11, sleeve; 12, guide rod; 131, first screw rod; 132, first rotating handle; 133, first internal threaded sleeve; 14, discharge plate; 15, second adjusting mechanism; 151, flat plate; 152, second screw rod; 153, second rotating handle; 154, vertical plate; 155, first connecting column; 156, second internal threaded sleeve; 157, connecting rod; 16, guide plate; 17, fixed column; 18, second connecting column; 19, shell. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1: A steel bar on-site rust removal machine for culvert construction, such as Figure 1-7 As shown, it includes a bottom box 1 with an upper opening structure, a plurality of rollers 2 are rotatably provided at the bottom of the bottom box 1, a fixing plate 3 is fixedly provided at the opening of the bottom box 1, and two front and rear groups of wire brush discs 4 are rotatably provided above the fixing plate 3. The wire brush discs 4 are used to brush away rust blocks on the surface of rusty steel bars. For technicians in the relevant field, the wire brush discs 4 are well-known technologies, so they will not be described in detail. Each group of wire brush discs 4 is provided with two, and the wire brush discs 4 extend in the up and down directions. The two groups of wire brush discs 4 are staggered left and right.

[0033] A first rotating drive device is provided in the bottom box 1, and the first rotating drive device is transmission-connected with the wire brush disc 4 located at the rear. The first rotating drive device is used to drive the wire brush disc 4 located at the rear to rotate. Specifically, a partition plate 5 is fixedly provided at the bottom of the fixed plate 3, and the partition plate 5 is arranged in the middle of the front and rear. A first mounting plate 6 is fixedly provided between the partition plate 5 and the rear side wall of the bottom box 1. The first rotating drive device includes two first rotating shafts 701 rotatably arranged between the fixed plate 3 and the first mounting plate 6, and a first driving motor 702 is fixedly provided at the bottom of the first mounting plate 6. The output shaft of the first driving motor 702 rotates through the first mounting plate 6 and is fixedly connected to one of the first rotating shafts 701. The top of the first rotating shaft 701 rotates through the fixed plate 3 and is fixedly connected to the wire brush disc 4 located at the rear; first sprockets 703 are fixedly provided on the two first rotating shafts 701, and first chains 704 are meshed on the two first sprockets 703.

[0034] By driving the first driving motor 702 to rotate, one of the first rotating shafts 701 is driven to rotate, and the other first rotating shaft 701 is driven to rotate through the first sprocket 703 and the first chain 704, and then the two wire brush discs 4 located at the rear are driven to rotate, thereby achieving rust removal operation on one side of the rusty steel bars.

[0035] A second rotating drive device is provided in the bottom box 1, and the second rotating drive device is transmission-connected to the wire brush disc 4 located in the front. The second rotating drive device is used to drive the wire brush disc 4 located in the front to rotate. Specifically, two second mounting plates 8 spaced apart up and down are provided between the partition plate 5 and the rear side wall of the bottom box 1. The second rotating drive device includes a second rotating shaft 901 rotating between the two second mounting plates 8, and a second driving motor 902 is fixedly provided at the bottom of the second mounting plate 8 located at the bottom. The output shaft of the second driving motor 902 rotates through the second mounting plate 8 and is fixedly connected to one of the second rotating shafts 901. The top of the second rotating shaft 901 rotates through the second mounting plate 8 and the fixed plate 3 located at the top in turn and is fixedly connected to the wire brush disc 4 located in the front; second sprockets 903 are fixedly provided on the two second rotating shafts 901, and second chains 904 are meshed on the two second sprockets 903.

[0036] By driving the second driving motor 902 to rotate, one of the second rotating shafts 901 is driven to rotate, and the other second rotating shaft 901 is driven to rotate through the second sprocket 903 and the second chain 904, and then the two wire brush discs 4 located in the front are driven to rotate, thereby realizing the rust removal operation on the sensitive side of the rusty steel bars.

[0037] A connecting plate 10 is fixed between the left and right ends of the two second mounting plates 8, and a sleeve 11 is fixed on the connecting plate 10. Two guide rods 12 spaced apart on the left and right are fixed between the partition 5 and the front side wall of the bottom box 1. The guide rods 12 are slidably inserted into the sleeves 11. The guide rods 12 can support and fix the two second mounting plates 8 and the second rotating drive device through the sleeves 11 and the connecting plates 10, and enable the two second mounting plates 8, the second rotating drive device and the wire brush plate 4 located in the front to slide back and forth along the guide rods 12 through the sleeves 11 and the connecting plates 10.

[0038] Two first sliding grooves are provided on the fixed plate 3, and the second rotating shaft 901 is inserted into the first sliding grooves, so that the second rotating shaft 901 can move forward and backward, and the bottom box 1 is provided with a first adjusting mechanism for adjusting the distance between the front and rear groups of wire brush plates 4. Specifically, the first adjusting mechanism includes a first screw 131 rotatably arranged between the partition 5 and the front side wall of the bottom box 1, and the front end of the first screw 131 passes through the bottom box 1 and is fixed with a first handle 132, and the bottom of the second mounting plate 8 located below is fixed with a first internal threaded sleeve 133, and the first screw 131 is threadedly inserted into the first internal threaded sleeve 133.

[0039] By rotating the first handle 132, the first screw rod 131 is driven to rotate in the internal thread of the first internal thread sleeve 133, and the two second mounting plates 8 are driven to slide forward and backward along the guide rod 12 through the sleeve 11 and the connecting plate 10, thereby driving the second rotary drive device located on the two second mounting plates 8 and the wire brush disc 4 located in the front to move forward and backward, thereby achieving the purpose of adjusting the distance between the front and rear groups of wire brush discs 4, so that the distance can be adjusted according to the diameter of different rusty steel bars, thereby improving the application range of the rust remover.

[0040] A discharge plate 14 is horizontally provided at both ends of the fixed plate 3, and a second adjusting mechanism 15 is provided on the bottom box 1. The discharge plate 14 is provided on the second adjusting mechanism 15. The second adjusting mechanism 15 is used to adjust the height of the two discharge plates 14. Specifically, the second adjusting mechanism 15 includes a flat plate 151 fixedly provided on the right side of the bottom box 1, and a second screw 152 extending upward is rotatably provided on the flat plate 151. The bottom end of the second screw 152 rotates through the flat plate 151 and is fixedly provided with a second handle 153; a vertical plate 154 extending downward is fixedly provided on the discharge plate 14, and a first connecting column 155 is provided at the bottom end of the vertical plate 154. A second internally threaded sleeve 156 is fixedly provided at the right end of the first connecting column 155, and the second screw 152 is threadedly penetrated in the second internally threaded sleeve 156.

[0041] By rotating the second rotating handle 153, the first screw rod 131 is driven to rotate in the first internal threaded sleeve 133, thereby driving the only right vertical plate 154 and the discharge plate 14 to move up and down, so as to achieve the purpose of adjusting the up and down height of the discharge plate 14 located on the right, and then achieve the purpose of adjusting the height at which the rusty steel bars enter the rust remover, so that the rusty steel bars can be rusted at different heights of the wire brush disc 4. When the wire brush disc 4 extending in the up and down direction is worn out in some layers after long-term use, the wire brush disc 4 can continue to remove rust from the rusty steel bars by adjusting the height at which the rusty steel bars enter the rust remover, thereby avoiding the worn wire brush disc 4 affecting the rust removal effect on the steel bars. At the same time, it can also reduce the replacement frequency of the wire brush disc 4 and improve the rust removal efficiency of the steel bars.

[0042] A connecting rod 157 is fixed between the two vertical plates 154. Second sliding grooves extending in the up-down direction and transparent to the left and right are provided on the left and right sides of the bottom box 1. The connecting rod 157 is slidably penetrated into the second sliding groove. When the vertical plate 154 and the discharge plate 14 on the right move up and down through the connecting rod 157, the vertical plate 154 and the discharge plate 14 on the left can be synchronously driven to move up and down, thereby realizing the simultaneous up-and-down height adjustment of the two discharge plates 14.

[0043] A guide plate 16 is fixed on the discharge plate 14 on the right, and a fixed column 17 is provided on the discharge plate 14 on the right. The guide plate 16 and the fixed column 17 are spaced apart front and back, and the rusty steel bar is located between the guide plate 16 and the fixed column 17. The guide plate 16 and the fixed column 17 can limit the front and back range of the rusty steel bar and guide the left and right movement.

[0044] A third slide groove extending in the front-to-back direction and being transparent up and down is provided on the discharge plate 14, and a fixed column 17 is slidably inserted into the third slide groove, and the bottom end of the fixed column 17 passes through the third slide groove and is fixedly provided with a second connecting column 18. A fourth slide groove which is transparent left and right and extending in the front-to-back direction is provided on the right side of the bottom box 1, and the second connecting column 18 is slidably inserted into the fourth slide groove, and the left end of the second connecting column 18 passes through the fourth slide groove and is fixedly provided on the connecting plate 10 located on the right; so that the first adjusting mechanism adjusts the spacing between the front and rear two groups of wire brush discs 4 while adjusting the spacing between the fixed column 17 and the guide plate 16, so that rusty steel bars of different diameters can pass through the discharge plate 14.

[0045] A shell 19 with a lower opening structure is fixedly provided on the top of the bottom box 1. The shell 19 can prevent the rust blocks removed from the steel bars from being splashed everywhere during the rust removal process of the high-speed rotating wire brush disc 4; a feed hole is opened on the right side of the shell 19, and a discharge hole is opened on the left side of the shell 19, and the feed hole and the discharge hole correspond to each other on the left and right.

[0046] Working principle: When in use, the steel bar is passed through between the fixed column 17 and the guide plate 16 of the discharge plate 14, and enters between the front and rear two groups of wire brush discs 4 from the feed hole of the shell 19, and at the same time, the first drive motor 702 is started, and the first drive motor 702 drives one of the first rotating shafts 701 to rotate, and drives the other first rotating shaft 701 to rotate through the first sprocket 703 and the first chain 704, thereby driving the two wire brush discs 4 located at the rear to rotate, and rust removal is performed on one side of the rusty steel bar; the second drive motor 902 is started, and the second drive motor 902 drives one of the second rotating shafts 901 to rotate, and drives the other second rotating shaft 901 to rotate through the second sprocket 903 and the second chain 904, thereby driving the two wire brush discs 4 located in the front to rotate, and rust removal is performed on the flexible side of the rusty steel bar, and the rust-removed steel bar is discharged from the discharge hole of the shell 19.

[0047] When the surface of the wire brush disc 4 is worn, the second turning handle 153 is rotated to drive the first screw 131 to rotate in the first internal threaded sleeve 133, thereby driving the only right vertical plate 154 and the discharge plate 14 to move up and down, and adjusting the up and down height of the discharge plate 14 on the right, thereby changing the contact surface between the wire brush disc 4 and the steel bar; when rust removal is performed on steel bars of different diameters, the first turning handle 132 is rotated to drive the first screw 131 to rotate in the internal thread of the first internal threaded sleeve 133, driving the two second mounting plates 8 to slide back and forth along the guide rod 12 through the sleeve 11 and the connecting plate 10, thereby driving the second rotation drive device located on the two second mounting plates 8 and the wire brush disc 4 located in the front to move back and forth, and adjusting the distance between the front and rear groups of wire brush discs 4.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A steel bar on-site rust removal machine for culvert construction, characterized by: It comprises a bottom box (1) with an upper opening structure, a plurality of rollers (2) being rotatably provided at the bottom of the bottom box (1), a fixing plate (3) being fixedly provided at the opening of the bottom box (1), two groups of front and rear wire brush discs (4) being rotatably provided above the fixing plate (3), each group of wire brush discs (4) being provided with two wire brush discs, the wire brush discs (4) extending in the up-down direction, and the two groups of wire brush discs (4) being staggered left and right; A first rotary drive device is provided in the bottom box (1), and the first rotary drive device is in transmission connection with a wire brush disc (4) located at the rear; a second rotary drive device is provided in the bottom box (1), and the second rotary drive device is in transmission connection with a wire brush disc (4) located at the front; A material discharge plate (14) is horizontally arranged at both left and right ends of the fixed plate (3), a second adjustment mechanism (15) is arranged on the bottom box (1), and the material discharge plate (14) is arranged on the second adjustment mechanism (15). The second adjustment mechanism (15) is used to adjust the height of the two material discharge plates (14).

2. The on-site steel bar rust remover for culvert construction according to claim 1, characterized in that: The second adjustment mechanism (15) comprises a flat plate (151) fixedly arranged on the right side of the bottom box (1), a second screw rod (152) extending upwards being rotatably arranged on the flat plate (151), the bottom end of the second screw rod (152) rotatably passing through the flat plate (151) and being fixedly provided with a second rotating handle (153); A vertical plate (154) extending downward is fixedly provided on the discharge plate (14), a first connecting column (155) is provided at the bottom end of the vertical plate (154), a second internally threaded sleeve (156) is fixedly provided at the right end of the first connecting column (155), and a second screw rod (152) is threadedly inserted into the second internally threaded sleeve (156); a connecting rod (157) is fixedly provided between the two vertical plates (154), and second sliding grooves extending in the up-down direction and being transparent from left to right are provided on the left and right sides of the bottom box (1), and the connecting rod (157) is slidably inserted into the second sliding groove.

3. The on-site steel bar rust remover for culvert construction according to claim 1, characterized in that: The first rotary drive device is used to drive the wire brush disc (4) located at the rear to rotate. Specifically, a partition plate (5) is fixedly provided at the bottom of the fixed plate (3), the partition plate (5) is arranged in the middle of the front and rear, and a first mounting plate (6) is fixedly provided between the partition plate (5) and the rear side wall of the bottom box (1). The first rotary drive device comprises two first rotating shafts (701) rotatably provided between the fixed plate (3) and the first mounting plate (6). A first driving motor (702) is fixedly provided at the bottom of the first mounting plate (6). The output shaft of the first driving motor (702) rotates through the first mounting plate (6) and is fixedly connected to one of the first rotating shafts (701). The top of the first rotating shaft (701) rotates through the fixed plate (3) and is fixedly connected to the wire brush disc (4) located at the rear. First sprockets (703) are fixedly provided on the two first rotating shafts (701), and first chains (704) are meshed on the two first sprockets (703).

4. The on-site steel bar rust remover for culvert construction according to claim 3, characterized in that: A second rotary drive device is provided in the bottom box (1), and the second rotary drive device is transmission-connected to the wire brush disc (4) located in the front. The second rotary drive device is used to drive the wire brush disc (4) located in the front to rotate. Specifically, two second mounting plates (8) are arranged with an interval between the partition plate (5) and the rear side wall of the bottom box (1). The second rotary drive device comprises a second rotating shaft (901) which is rotatably arranged between the two second mounting plates (8). A second driving motor (902) is fixedly provided at the bottom of the second mounting plate (8) located at the bottom. The output shaft of the second driving motor (902) rotates through the second mounting plate (8) and is fixedly connected to one of the second rotating shafts (901). The top of the second rotating shaft (901) rotates through the second mounting plate (8) and the fixed plate (3) located at the top and is fixedly connected to the wire brush disc (4) located in the front. Second sprockets (903) are fixedly provided on the two second rotating shafts (901), and second chains (904) are meshed on the two second sprockets (903).

5. The on-site steel bar rust remover for culvert construction according to claim 4, characterized in that: A connecting plate (10) is fixedly provided between the left and right ends of the two second mounting plates (8), a sleeve (11) is fixedly provided on the connecting plate (10), two guide rods (12) are fixedly provided between the partition plate (5) and the front side wall of the bottom box (1) at intervals on the left and right, and the guide rods (12) are slidably inserted into the sleeves (11); The bottom box (1) is provided with a first adjustment mechanism, and the first adjustment mechanism is used to adjust the distance between the front and rear sets of wire brush discs (4).

6. The on-site steel bar rust remover for culvert construction according to claim 5, characterized in that: Two first sliding grooves are provided on the fixed plate (3), and the second rotating shaft (901) is inserted into the first sliding grooves; The first adjustment mechanism comprises a first screw rod (131) rotatably arranged between the partition plate (5) and the front side wall of the bottom box (1); the front end of the first screw rod (131) passes through the bottom box (1) and is fixedly provided with a first rotating handle (132); a first internally threaded sleeve (133) is fixedly provided at the bottom of a second mounting plate (8) located below; and the first screw rod (131) is threadably arranged in the first internally threaded sleeve (133).

7. The on-site steel bar rust remover for culvert construction according to claim 1, characterized in that: A guide plate (16) is fixedly provided on the right discharge plate (14), and a fixing column (17) is provided on the right discharge plate (14), wherein the guide plate (16) and the fixing column (17) are arranged in a front-to-back spacing; A shell (19) with a lower opening structure is fixedly provided on the top of the bottom box (1), a feed hole is provided on the right side of the shell (19), and a discharge hole is provided on the left side of the shell (19), the feed hole and the discharge hole correspond to each other on the left and right.

8. The on-site steel bar rust remover for culvert construction according to claim 7, characterized in that: The discharge plate (14) is provided with a third slide groove extending in the front-to-back direction and being transparent from top to bottom, the fixed column (17) is slidably inserted into the third slide groove, the bottom end of the fixed column (17) passes through the third slide groove and is fixedly provided with a second connecting column (18), and the right side of the bottom box (1) is provided with a fourth slide groove which is transparent from left to right and extending in the front-to-back direction, the second connecting column (18) is slidably inserted into the fourth slide groove, and the left end of the second connecting column (18) passes through the fourth slide groove and is fixedly provided on the connecting plate (10) located on the right.

9. The on-site steel bar rust remover for culvert construction according to claim 1, characterized in that: A shell (19) with a lower opening structure is fixedly provided on the top of the bottom box (1), a feed hole is provided on the right side of the shell (19), and a discharge hole is provided on the left side of the shell (19), the feed hole and the discharge hole correspond to each other on the left and right.

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