Roller leveling device applied to prefabricated box girder

Abstract

The utility model relates to a roller leveling device applied to a prefabricated box girder, which comprises a truss-type main framework, the truss-type main framework is provided with a door-shaped frame, the door-shaped frame is provided with walking wheels, the truss-type main framework is provided with a leveling roller, and the truss-type main framework is provided with a cleaning scraper for cleaning concrete adhered to the surface of the leveling roller. The edge of the cleaning scraper abuts against the surface of the leveling roller, a driving rod is rotationally arranged on the truss type main framework in the direction parallel to the length direction of the leveling roller, a driving threaded groove is formed in the surface of the driving rod, a moving block is arranged at the top end of the cleaning scraper, an auxiliary threaded hole is formed in the moving block in a penetrating mode, and the driving rod is arranged in the auxiliary threaded hole in a penetrating mode. A driving motor is arranged at the end of the driving rod, a limiting rod is further arranged on the truss type main framework, the limiting rod is arranged in the moving block in a penetrating mode, and the moving block slides along the limiting rod. The concrete adhering to the surface of the leveling roller is automatically scraped off in the moving process of the cleaning scraping plate, and the cleaning time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type bridge construction engineering, in particular to a roller leveling device applied to prefabricated box beams. Background Art

[0002] During the prefabrication process of the box beam, the concrete poured in the box beam template needs to be vibrated and smoothed to ensure that the top surface of the box beam concrete pouring is solid inside and smooth outside. At present, the concrete beam surface is usually leveled by manual smoothing or concrete smoothing machine, which has low precision and slow work efficiency. The construction quality is greatly affected by the construction workers, with large personnel investment, low construction efficiency and difficult quality control. Therefore, there is a special need for a roller leveling device used in prefabricated box beams.

[0003] However, the existing box girder leveling equipment includes a truss-type main frame, both ends of the truss-type main frame are provided with door-type frames, the bottom of the door-type frames are provided with walking wheels, and the middle part of the truss-type main frame is provided with a leveling roller. The leveling roller is connected to the truss-type main frame through a lifting bracket. When in use, it moves from one end to the other end in the length direction of the box girder, so that the top surface of the concrete pouring can be leveled.

[0004] During use, due to the large size of the leveling roller, it takes a long time to clean the concrete on the surface of the leveling roller, which can easily cause the concrete to solidify on the surface of the leveling roller, thereby affecting the subsequent normal use of the leveling device. Utility Model Content

[0005] In order to improve the existing leveling roller, the volume is large, the time consumed to clean the concrete on the surface of the leveling roller is long, which easily causes the concrete to solidify on the surface of the leveling roller, thereby affecting the subsequent normal use of the leveling device.

[0006] The present application provides a roller leveling device for prefabricated box girders, which adopts the following technical solution: a roller leveling device for prefabricated box girders, comprising a truss-type main frame, two ends of the truss-type main frame are provided with door-type frames, the bottom of the door-type frames is provided with walking wheels, the middle part of the truss-type main frame is provided with a leveling roller, the leveling roller is connected to the truss-type main frame through a lifting bracket, the truss-type main frame is provided with a cleaning scraper for cleaning concrete adhered to the surface of the leveling roller, the edge of the cleaning scraper abuts against the surface of the leveling roller, the truss-type main frame is provided with a driving rod for rotation along the length direction of the leveling roller, the surface of the driving rod is provided with a driving thread groove, the top end of the cleaning scraper is provided with a moving block, the interior of the moving block is penetrated by an auxiliary threaded hole, the driving rod is penetrated in the auxiliary threaded hole, the end of the driving rod is provided with a driving motor, the truss-type main frame is also provided with a limiting rod, the limiting rod is penetrated in the moving block, and the moving block slides along the limiting rod.

[0007] Preferably, the leveling roller comprises a first leveling roller and a second leveling roller, the diameter of the second leveling roller is larger than the diameter of the first leveling roller, the first leveling roller and the second leveling roller are arranged in a herringbone shape, and the moving paths of the first leveling roller and the second leveling roller overlap.

[0008] Preferably, a rotating roller is rotatably provided on the driving rod, a brush is provided on the surface of the rotating roller, the brush abuts against the surface of the leveling roller, a rotating threaded hole is opened at the rotation center of the rotating roller, and the end of the moving block abuts against the rotating roller to push the rotating roller to move along the driving rod.

[0009] Preferably, a holding hook is provided on the moving block, and the holding hook abuts against an end surface of the rotating roller at one end away from the moving block.

[0010] Preferably, a holding hook is provided on the moving block, and the holding hook abuts against an end surface of the rotating roller at one end away from the moving block.

[0011] Preferably, a rotating shaft for adjusting the inclination angle of the cleaning scraper is disposed on the moving block, and a sleeve is disposed on the top end of the cleaning scraper, and the sleeve is rotatably sleeved on the rotating shaft.

[0012] Preferably, a fixing nut for fixing the cleaning scraper is rotatably provided at one end of the rotating shaft, and the fixing nut abuts against the end of the sleeve.

[0013] Preferably, an auxiliary block is provided between the fixing nut and the end of the sleeve, an auxiliary block is also provided on the rotating shaft, the auxiliary block is provided with a movable groove toward one end of the sleeve, the movable groove is fan-shaped, an auxiliary plate is provided on the side of one end of the sleeve facing the auxiliary block, the auxiliary plate is provided along the diameter direction of the sleeve, the auxiliary plate is located in the movable groove, and auxiliary springs are respectively provided on both side surfaces of the movable groove, and the two auxiliary springs respectively abut against both sides of the auxiliary plate.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. A cleaning scraper is arranged near the leveling roller. The cleaning scraper moves along the length direction of the leveling roller under the driving action of the driving rod, so that the cleaning scraper automatically scrapes off the concrete adhering to the surface of the leveling roller during the movement, thereby improving the cleanliness of the surface of the leveling roller, reducing the difficulty of cleaning the leveling roller, and thus reducing the cleaning time;

[0016] 2. By opening leakage holes on the surface of the cleaning scraper, the scraped concrete falls through the leakage holes, avoiding the accumulation and solidification of concrete on the surface of the cleaning scraper;

[0017] 3. An auxiliary block is provided at the end of the sleeve, and a movable groove is provided in the auxiliary block to increase the movable space of the cleaning scraper. The auxiliary spring in the movable groove is used to adjust the pressure of the cleaning scraper against the surface of the leveling roller to avoid damage to the cleaning scraper caused by collision between the solidified concrete and the cleaning scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a partial schematic diagram used to show the structure of the driving rod in the utility model;

[0021] Figure 3 It is a schematic diagram used to show the structure of the moving block in the utility model;

[0022] Figure 4 It is an exploded schematic diagram for showing the assembly relationship between the cleaning scraper and the moving block;

[0023] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0024] Explanation of the reference numerals: 10. Truss-type main frame; 11. Door-type frame; 12. Travel wheel; 13. First leveling roller; 14. Second leveling roller; 15. Driving rod; 151. Driving thread groove; 16. Driving motor; 17. Limiting rod; 18. Moving block; 181. Auxiliary threaded hole; 182. Through hole; 183. Holding hook; 184. Rotating shaft; 185. Fixing nut; 186. Auxiliary block; 187. Movable groove; 188. Auxiliary spring; 19. Rotating roller; 191. Brush; 20. Cleaning scraper; 201. Leakage hole; 202. Sleeve; 203. Auxiliary plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] The following is combined with Figure 1-5 This application is described in further detail.

[0029] A roller leveling device for prefabricated box beams, referring to Figure 1-5 , including a truss-type main frame 10, with door-type frames 11 at both ends of the truss-type main frame 10, with walking wheels 12 at the bottom of the door-type frame 11, and a leveling roller at the middle of the truss-type main frame 10, which is connected to the truss-type main frame 10 through a lifting bracket.

[0030] The leveling rollers include a first leveling roller 13 and a second leveling roller 14. Specifically, there are two first leveling rollers 13 and two second leveling rollers 14, and the two first leveling rollers 13 are located beside the two second leveling rollers 14, respectively. The second leveling rollers 14 and the two first leveling rollers 13 are in a triangle shape, and the two ends of the second leveling roller 14 overlap the ends of the two first leveling rollers 13. In this embodiment, the diameter of the second leveling roller 14 is greater than the diameter of the first leveling roller 13, so that the first leveling roller 13 and the second leveling roller 14 can level planes of different heights.

[0031] Reference Figure 2 and Figure 3 A driving rod 15 is rotatably mounted on the truss main frame 10. There are multiple driving rods 15. The multiple driving rods 15 are respectively located beside the first leveling roller 13 and the second leveling roller 14, and the driving rod 15 is arranged parallel to the first leveling roller 13 and the second leveling roller 14. A driving motor 16 is installed at one end of the driving rod 15, and the driving motor 16 drives the driving rod 15 to rotate. A driving thread groove 151 is opened on the surface of the driving rod 15. A limit rod 17 is also installed on the truss main frame 10, and the limit rod 17 is located beside the driving rod 15.

[0032] Reference Figure 2 and Figure 3 The driving rod 15 is provided with a moving block 18, and an auxiliary threaded hole 181 and a through hole 182 are provided inside the moving block 18. The driving rod 15 is inserted into the auxiliary threaded hole 181, and the limiting rod 17 is inserted into the through hole 182. An auxiliary threaded groove is engraved in the auxiliary threaded hole 181, and the auxiliary threaded groove is meshed and connected with the driving threaded groove 151 of the driving rod 15. When the driving rod 15 rotates, the moving block 18 reciprocates along the limiting rod 17.

[0033] Reference Figure 2 and Figure 3 A rotating roller 19 is also rotatably mounted on the driving rod 15. A rotating threaded hole is provided inside the rotating roller 19, and the rotating roller 19 is inserted into the rotating threaded hole. A brush 191 is provided on the surface of the rotating roller 19, and the brush 191 abuts against the surface of the leveling roller. There are two rotating rollers 19, and the two rotating rollers 19 are respectively located on both sides of the moving block 18. The end face of the moving block 18 abuts against the end face of the rotating roller 19. When the moving block 18 moves, the moving block 18 pushes the rotating roller 19 to move along the driving rod 15. A holding hook 183 is installed on each of the two end faces of the moving block 18, and the holding hook 183 abuts against the side of the rotating roller 19 away from the moving block 18, so that one of the rotating rollers 19 is pulled to move during the movement of the moving block 18.

[0034] Reference Figure 2 and Figure 3 The moving block 18 is provided with a cleaning scraper 20, which is used to clean the concrete adhered to the surface of the leveling roller. The bottom edge of the cleaning scraper 20 abuts against the surface of the leveling roller, and a leak hole 201 is opened in the center of the cleaning scraper 20 to allow the scraped concrete to fall through the leak hole 201. Specifically, a rotating shaft 184 is installed at the bottom of the moving block 18, and the rotating shaft 184 is arranged parallel to the driving rod 15. One end of the rotating shaft 184 is engraved with a thread, and a fixing nut 185 is rotatably installed on the rotating shaft 184.

[0035] Reference Figure 3 and Figure 4 , and combined with Figure 5A sleeve 202 is installed on the top of the cleaning scraper 20. The interior of the sleeve 202 is hollow. The rotating shaft 184 is inserted into the sleeve 202, and the end of the rotating shaft 184 passes through the end of the sleeve 202. An auxiliary plate 203 is fixedly installed on the side of the sleeve 202 near the end of the fixing nut 185. The plane of the auxiliary plate 203 is arranged along the diameter direction of the sleeve 202. An auxiliary block 186 is sleeved on the end of the sleeve 202 where the end of the rotating shaft 184 passes through. One end of the auxiliary block 186 abuts against the end of the sleeve 202, and the fixing nut 185 abuts against the other end of the auxiliary block 186. A movable groove 187 is opened on the side of the auxiliary block 186 facing the sleeve 202. The movable groove 187 is arranged in a fan shape around the center of the auxiliary block 186, and the auxiliary plate 203 is located in the movable groove 187. Two auxiliary springs 188 are installed inside the movable groove 187. The two auxiliary springs 188 are respectively installed on the two side walls of the movable groove 187, and the two auxiliary springs 188 are respectively abutted against the two sides of the auxiliary plate 203. The cleaning blade 20 can rotate slightly around the rotating shaft 184, reducing the impact force between the cleaning blade 20 and the concrete adhering to the surface of the leveling roller.

[0036] The working process of this embodiment is as follows: during the working process of the leveling device, the driving motor 16 is started, the driving motor 16 drives the driving rod 15 to rotate, and the driving rod 15 drives the moving block 18 to rotate by driving the threaded groove 151, and the moving block 18 is limited by the limit rod 17 so that the moving block 18 moves along the length direction of the driving rod 15. The cleaning scraper 20 on the moving block 18 abuts against the surface of the leveling roller. The rotation direction of the driving motor 16 is controlled so that the cleaning scraper 20 moves back and forth along the length direction of the leveling roller during the moving process, and the concrete adhering to the surface of the leveling roller is scraped off. At the same time, during the moving process of the moving block 18, one end of the moving block 18 pushes one of the rotating rollers 19 to move, and the other end of the moving block 18 pulls the other rotating roller 19. Since the rotating roller 19 is provided with a thread inside, when the moving block 18 drives the rotating roller 19 to move, the rotating roller 19 rotates around the driving rod 15, so that the surface of the leveling roller is cleaned by the brush 191 on the surface of the rotating roller 19.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roller leveling device for use in a prefabricated box girder, comprising a truss main frame (10), two ends of the truss main frame (10) are provided with door frames (11), the bottom of the door frames (11) is provided with running wheels (12), a leveling roller is provided in the middle of the truss main frame (10), and the leveling roller is connected to the truss main frame (10) through a lifting bracket, characterized in that: The truss-type main frame (10) is provided with a cleaning scraper (20) for cleaning concrete adhered to the surface of the leveling roller, the edge of the cleaning scraper (20) abuts against the surface of the leveling roller, the truss-type main frame (10) is provided with a driving rod (15) for rotation along a direction parallel to the length of the leveling roller, the surface of the driving rod (15) is provided with a driving thread groove (151), the top of the cleaning scraper (20) is provided with a moving block (18), the inside of the moving block (18) is penetrated by an auxiliary thread hole (181), the driving rod (15) is penetrated by the auxiliary thread hole (181), and the end of the driving rod (15) is provided with a driving motor (16), and the truss-type main frame (10) is also provided with a limiting rod (17), the limiting rod (17) is penetrated by the moving block (18), and the moving block (18) slides along the limiting rod (17).

2. The roller leveling device for prefabricated box beams according to claim 1 is characterized in that: The leveling roller comprises a first leveling roller (13) and a second leveling roller (14); the diameter of the second leveling roller (14) is greater than the diameter of the first leveling roller (13); the first leveling roller (13) and the second leveling roller (14) are arranged in a herringbone shape, and the moving paths of the first leveling roller (13) and the second leveling roller (14) overlap.

3. The roller leveling device for prefabricated box beams according to claim 1 is characterized in that: A rotating roller (19) is rotatably arranged on the driving rod (15), a brush (191) is arranged on the surface of the rotating roller (19), the brush (191) abuts against the surface of the leveling roller, a rotating threaded hole is provided at the rotation center of the rotating roller (19), and the end of the moving block (18) abuts against the rotating roller (19) to push the rotating roller (19) to move along the driving rod (15).

4. The roller leveling device for prefabricated box beams according to claim 3 is characterized in that: The moving block (18) is provided with a holding hook (183), and the holding hook (183) abuts against the end surface of the rotating roller (19) at one end away from the moving block (18).

5. The roller leveling device for prefabricated box beams according to claim 1 is characterized in that: A leakage hole (201) is provided at the center of the cleaning scraper (20).

6. The roller leveling device for prefabricated box beams according to claim 1 is characterized in that: The movable block (18) is provided with a rotating shaft (184) for adjusting the inclination angle of the cleaning scraper (20), and the top end of the cleaning scraper (20) is provided with a sleeve (202), and the sleeve (202) is rotatably sleeved on the rotating shaft (184).

7. The roller leveling device for prefabricated box beams according to claim 6 is characterized in that: A fixing nut (185) for fixing the cleaning scraper (20) is rotatably provided at one end of the rotating shaft (184), and the fixing nut (185) abuts against the end of the sleeve (202).

8. The roller leveling device for prefabricated box beams according to claim 7 is characterized in that: An auxiliary block (186) is also provided between the fixing nut (185) and the end of the sleeve (202). An auxiliary block (186) is also provided on the rotating shaft (184). The auxiliary block (186) is provided with a movable groove (187) at one end facing the sleeve (202). The movable groove (187) is fan-shaped. An auxiliary plate (203) is provided on the side surface of one end of the sleeve (202) facing the auxiliary block (186). The auxiliary plate (203) is provided along the diameter direction of the sleeve (202). The auxiliary plate (203) is located in the movable groove (187). Auxiliary springs (188) are respectively provided on both side surfaces of the movable groove (187). The two auxiliary springs (188) are respectively abutted against the two sides of the auxiliary plate (203).

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