Box girder web vibrating machine

Abstract

The utility model discloses a box girder web vibrating machine which comprises a longitudinal rail fixedly arranged on one side of a mould of a box girder, and a cross beam arranged above the mould of the box girder and capable of longitudinally walking along the longitudinal rail, a first conveying unit capable of transversely walking along the cross beam and a second conveying unit capable of transversely walking along the cross beam are sequentially arranged below the cross beam in the transverse direction, vibrators are arranged on the first conveying unit and the second conveying unit, and vibrating motors of the vibrators are fixedly connected with the second conveying unit. A hose of the vibrator penetrates through the first conveying unit, and the first conveying unit is used for conveying the hose. When concrete is vibrated, the cross beam moves longitudinally, the vibrating head of the vibrator is aligned with meshes of a reinforcement cage at a box girder web through the first conveying unit and the second conveying unit, and then the vibrating head is conveyed into the meshes to vibrate the concrete, so that the mode that the vibrator is moved manually and the concrete is vibrated can be replaced, the vibrating efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete precast member production equipment, in particular to a box girder web vibrator. Background Art

[0002] A box girder is a common component of a concrete bridge. The upper part on both sides has flanges extending outwards, and below the flanges are inclined webs.

[0003] The box girder is cast in a mold. There is a cavity in the mold that is consistent with the shape of the box girder, and there is a steel reinforcement cage in the cavity. When pouring concrete, since there are many voids and bubbles in the concrete, these voids and bubbles will make the density and strength of the concrete unable to be guaranteed, which will affect the service life and safety of the box girder. Therefore, it is necessary to use a vibrator for vibration. Vibration can expel the air in the concrete, make the cement paste densely fill the voids between the aggregates, and improve the compaction degree and strength of the concrete.

[0004] At present, the vibration of concrete is carried out by manually inserting the vibration head of the vibrator into the concrete for vibration. The vibrator is very heavy, and the vibration head needs to be moved during vibration so that the concrete in the cavity can be vibrated. Therefore, the labor intensity is very high, the vibration efficiency is very low, and the vibration effect is not easy to guarantee. Especially when mass-producing precast box girders, the production efficiency of the box girders will be greatly reduced. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a box girder web vibrator, which is used to solve the problems of low efficiency and high labor intensity when vibrating the cast concrete during the production of box girders.

[0006] To solve the above technical problem, the technical solution adopted by the utility model is:

[0007] A box girder web vibrator includes a longitudinal longitudinal rail fixedly arranged beside the mold of the box girder, and a cross beam that can longitudinally travel along the longitudinal rail and is arranged above the mold of the box girder. Along the transverse direction below the cross beam, a first conveying unit that can transversely travel along the cross beam and a second conveying unit that can transversely travel along the cross beam are sequentially arranged. A vibrator is arranged on the first transmission unit and the second transmission unit. The vibration motor of the vibrator is fixedly connected to the second conveying unit. The hose of the vibrator passes through the first conveying unit, and the first conveying unit is used to convey the hose.

[0008] Further, a transverse rack is fixedly arranged on the cross beam. The first conveying unit includes a first support arranged on the cross beam, a first reduction motor fixedly arranged on the first support, a first gear arranged on the output shaft of the first reduction motor, a third support arranged under the first support, a conduction wheel rotatably connected in the third support, and a third reduction motor fixedly arranged on the third support for driving the conduction wheel to rotate; the first gear meshes with the rack, a pressing wheel is arranged beside the conduction wheel, the pressing wheel is elastically connected with the third support, the hose passes through the first support, the hose is clamped between the pressing wheel and the conduction wheel, and a first guiding wheel rotatable along the cross beam is rotatably connected on the first support.

[0009] Further, a longitudinal fine adjustment unit is arranged between the first support and the third support. The longitudinal fine adjustment unit includes a first support plate fixedly arranged under the first support, a second support plate fixedly arranged on the upper surface of the third support, a driving box fixedly arranged under the first support, a support block fixedly arranged on the upper surface of the third support, and a longitudinal lead screw fixedly arranged on the support block; the lead screw penetrates through the driving box, the first support and the third support are slidably connected through a longitudinal linear slide rail module arranged between the first support and the third support, a nut is rotatably connected in the driving box, the nut is in threaded connection with the lead screw, and a fourth reduction motor in transmission connection with the nut is fixedly arranged on the driving box.

[0010] Further, an inverted triangular guiding head is arranged under the third support, the lower end of the guiding head is sleeved outside the hose, an electric cylinder is arranged in the third support, one end of the top of the guiding head is hinged to the third support, one end of the electric cylinder is hinged to the third support, and the other end is hinged to the other end of the top of the guiding head. When the electric cylinder acts, the lower end of the guiding head is driven to swing.

[0011] Further, a transverse rack is fixedly arranged on the cross beam. The second conveying unit includes a second support arranged on the cross beam, a second reduction motor fixedly arranged on the second support, and a second gear arranged on the output shaft of the second reduction motor; the second gear meshes with the rack, a second guiding wheel rotatable along the cross beam is rotatably connected on the second support, and the vibrating motor is fixedly connected with the second support.

[0012] Further, at least two conduction wheels are arranged along the bending direction of the hose, the conduction wheel closer to the vibrating motor is higher than the conduction wheel closer to the vibrating head, and the third reduction motor is in transmission connection with at least one conduction wheel.

[0013] Further, a camera for detecting the position of the steel reinforcement cage in the mold is arranged under the first conveying unit.

[0014] Further, a longitudinal walking module is provided on the longitudinal rail, and one or more cross beams are fixedly connected to the longitudinal walking module.

[0015] The positive effects of the present utility model are as follows:

[0016] 1. The present utility model is provided with a longitudinal rail and a cross beam. The first conveying unit and the second conveying unit are provided on the cross beam. The cross beam moves longitudinally. By aligning the vibrating head of the vibrator with the mesh holes of the steel cage at the web of the box girder through the first conveying unit and the second conveying unit, and then sending the vibrating head into the mesh holes to vibrate the concrete, the manual movement of the vibrator can be replaced to vibrate the concrete box girder, thereby improving the vibrating efficiency and reducing the labor intensity.

[0017] 2. A guiding head is provided under the first conveying unit. The guiding head swings driven by the electric cylinder, so that the direction of the vibrating head is consistent with the inclination direction of the steel cage, and the feeding direction of the hose is consistent with the inclination direction of the steel cage. Thus, the vibrating head and the hose can easily enter the steel cage along the guiding head and move along the inclination direction of the steel cage, without passing through the gaps between the steel bars on the steel cage and piercing outside the steel cage, which may lead to a deterioration of the vibrating effect or the vibrating head being stuck and unable to be pulled out. Description of the Drawings

[0018] Figure 1 is the perspective view of the present utility model;

[0019] Figure 2 is the side view of the present utility model;

[0020] Figure 3 is the perspective view of the first conveying unit and the second conveying unit;

[0021] Figure 4 is the side view of the first conveying unit after removing the front side plate of the third bracket and the second conveying unit;

[0022] Figure 5 is the side view of the first conveying unit after removing the front side plate of the third bracket;

[0023] Figure 6 is Figure 2 the enlarged view of part I in;

[0024] Figure 7 is the side view of the longitudinal fine-tuning unit;

[0025] Figure 8 is Figure 7 the top view of the longitudinal fine-tuning unit in;

[0026] In the figure:

[0027] 1. Longitudinal walking module; 2. Longitudinal rail; 3. First conveying unit; 4. Hose; 5. Second conveying unit; 6. Vibration motor; 7. Mold; 8. Vibration head; 9. Mold cavity; 10. Steel cage; 11. Rack; 12. Cross beam; 13. First reduction motor; 14. First gear; 15. First guide wheel; 16. First bracket; 17. Longitudinal fine-tuning unit; 18. Second gear; 19. Second guide wheel; 20. Second bracket; 21. Second reduction motor; 22. Conduction wheel; 23. Guide head; 24. Third bracket; 25. Third reduction motor; 26. Electric cylinder; 27. Pressing wheel; 28. First support plate; 29. Linear slide rail module; 30. Second support plate; 31. Fourth reduction motor; 32. Drive box; 33. Lead screw; 34. Support block. Detailed implementation manner

[0028] For the convenience of description, in the following description, the length direction of the box girder (i.e., the direction consistent with the longitudinal rail 2) is "longitudinal", and in the horizontal plane, the direction perpendicular to the longitudinal rail 2 is "transverse".

[0029] Embodiment 1

[0030] As Figures 1 to 6 shown, longitudinal beams higher than the top of the mold 7 are provided on both sides of the mold 7 of the box girder. A box girder web vibrator includes two longitudinal rails 2 respectively fixedly arranged on the top of the longitudinal beams. Longitudinal walking modules 1 are provided on both longitudinal rails 2. The structure of the longitudinal walking module 1 is the same as that of the longitudinal walking module 1 of the common overhead crane in the current factory, and both are realized by driving the track wheels to rotate by a motor to walk on the longitudinal rail 2.

[0031] Four mutually parallel transverse cross beams 12 are provided between the two longitudinal walking modules 1. The two ends of the four cross beams 12 are respectively fixedly connected to the corresponding longitudinal walking modules 1. The cross section of the cross beam 12 is in the shape of an I-beam, and a truss for increasing the stiffness of the cross beam 12 is fixedly arranged on the top of each cross beam 12.

[0032] Below each cross beam 12, a first conveying unit 3 that can walk transversely along the cross beam 12 and a second conveying unit 5 that can walk transversely along the cross beam 12 are sequentially arranged from left to right in the transverse direction. A vibrator is arranged on the first conveying unit and the second conveying unit 5. The vibration motor 6 of the vibrator is fixedly connected to the second conveying unit 5. The hose 4 of the vibrator passes through the first conveying unit 3, and the first conveying unit 3 is used for conveying the hose 4.

[0033] A transverse rack 11 is fixedly arranged at the bottom of the cross beam 12. The first conveying unit 3 includes a first bracket 16 with a U-shaped cross section arranged on the cross beam 12, a first reduction motor 13 fixedly arranged at the left end of the first bracket 16, a first gear 14 arranged on the output shaft of the first reduction motor 13, a third bracket 24 with a gate-shaped cross section arranged under the first bracket 16, two conduction wheels 22 rotatably connected in the third bracket 24, and a third reduction motor 25 fixedly arranged on the third bracket 24 for driving the conduction wheels 22 to rotate.

[0034] The two conduction wheels 22 are arranged along the bending direction of the hose 4. The conduction wheel 22 close to the vibrating motor 6 is higher than the conduction wheel 22 close to the vibrating head 8, that is, one conduction wheel 22 is located at the lower part of the third bracket 24, and the other conduction wheel 22 is located at the upper right part of the third bracket 24. The third reduction motor 25 is fixedly arranged at the upper left part of the third bracket 24. The third reduction motor 25 is chain-driven with the lower conduction wheel 22, and the lower conduction wheel 22 is chain-driven with the other conduction wheel 22.

[0035] The first gear 14 meshes with the rack 11. Two pairs of first guide wheels 15 are rotatably connected to the upper part of the first bracket 16. The two pairs of first guide wheels 15 are clamped under the cross beam 12 and can roll along the cross beam 12. A pressing wheel 27 is arranged beside each conduction wheel 22. A swing arm with one end rotatably connected to the third bracket 24 is arranged beside each pressing wheel 27 inside the third bracket 24. The pressing wheels 27 are respectively rotatably connected to the other ends of the corresponding swing arms. A torsion spring for pressing the pressing wheel 27 against the hose 4 is arranged on each swing arm. The hose 4 passes through the first bracket 16, and the hose 4 is clamped between the pressing wheel 27 and the conduction wheel 22.

[0036] A hollow guiding head 23 in the shape of an inverted triangle is arranged under the third bracket 24. The lower part of the guiding head 23 is a sleeve sleeved outside the hose 4. An electric cylinder 26 is arranged at the lower left part of the third bracket 24. The right end of the top of the guiding head 23 is hinged to the third bracket 24. The upper end of the electric cylinder 26 is hinged to the third bracket 24, and the lower end is hinged to the left end of the top of the guiding head 23. When the electric cylinder 26 acts, it drives the lower end of the guiding head 23 to swing.

[0037] The second conveying unit 5 includes a second bracket 20 with a U-shaped cross section arranged on the cross beam 12, a second reduction motor 21 fixedly arranged at the left end of the second bracket 20, and a second gear 18 arranged on the output shaft of the second reduction motor 21. Two pairs of second guide wheels 19 are rotatably connected to the upper part of the second bracket 20. The two pairs of second guide wheels 19 are clamped under the cross beam 12 and can roll along the cross beam 12. The second gear 18 meshes with the rack 11, and the vibrating motor 6 is fixedly connected to the second bracket 20.

[0038] The working process of the utility model is as follows:

[0039] 1. The longitudinal walking module 1 drives the cross beam 12 to move longitudinally, and the first reduction motor 13 and the second reduction motor 21 drive the first support 16 and the second support 20 to move horizontally synchronously, so that the vibrating head 4 reaches above the mold cavity 9 at the web of the box girder.

[0040] 2. The longitudinal walking module 1 and the first reduction motor 13 stop running, the second reduction motor 21 runs, drives the second support 20 to approach the first support 16, the third reduction motor 25 runs, and sends the hose 4 downward. The electric cylinder 26 acts to drive the guide head 23 to swing, so that the vibrating head 8 is in the same inclined direction as the steel reinforcement cage 10 in the web of the box girder, and inserts into the steel reinforcement cage 10, and the vibrating head 8 and the hose 4 slide down along the steel reinforcement cage 10. When the vibrating motor 6 runs, it vibrates the concrete poured into the mold cavity 9.

[0041] 3. While vibrating, the first reduction motor 13 runs, drives the first support 16 to move horizontally, and then drives the hose 4 to move horizontally. The second reduction motor 21 drives the second support 20 to move horizontally, and the third reduction motor 25 drives the conduction wheel 22 to convey the hose 4, so as to vibrate the concrete at different positions.

[0042] The utility model can replace manual movement of the vibrator to vibrate the concrete, thereby improving the vibration efficiency and reducing the labor intensity. The four vibrators on the four cross beams 12 can vibrate the webs of the box girders on both sides respectively, thereby further improving the working efficiency.

[0043] Since the steel reinforcement cage 10 of the mold cavity 9 of the web of the box girder is inclined, the electric cylinder 26 drives the guide head 23 to swing, so that the direction of the vibrating head 8 is the same as the inclined direction of the steel reinforcement cage 10, and the vibrating head 8 can easily enter the steel reinforcement cage 10 along the orientation of the guide head 23 and move along the inclined direction of the steel reinforcement cage 10, and will not pass through the gap between the steel bars on the steel reinforcement cage 10 and penetrate outside the steel reinforcement cage 10, thereby resulting in a poor vibration effect or the vibrating head being stuck and unable to be pulled out.

[0044] Embodiment 2

[0045] Combined with Figure 7 and Figure 8As shown, a longitudinal fine-tuning unit 17 is provided between the first bracket 16 and the third bracket 24. The longitudinal fine-tuning unit 17 includes a pair of first support plates 28 fixedly arranged below the first bracket 16, a pair of second support plates 30 fixedly arranged above the third bracket 24, a drive box 32 fixedly arranged below the first bracket 16, two support blocks 34 fixedly arranged above the third bracket 24, and a longitudinal lead screw 33 fixedly arranged between the two support blocks 34. The lead screw 33 penetrates the drive box 32, and the first support plate 28 and the corresponding second support plate 30 are slidably connected through a longitudinal linear guide rail module 29 arranged between the first support plate 28 and the corresponding second support plate 30. The guide rail of the linear guide rail module 29 is fixedly connected to the first support plate 28, and the slider of the linear guide rail module 29 is fixedly connected to the second support plate 30. A nut is rotatably connected in the drive box 32, and the nut is threadedly connected to the lead screw 33. A fourth reduction motor 31 is fixedly arranged on the drive box 32, and the fourth reduction motor 31 is transmission-connected to the nut through a transmission mode of a gear, a chain, or a belt.

[0046] When the fourth reduction motor 31 is running, it drives the nut to rotate, and then drives the lead screw 33 to move longitudinally, so that the third bracket 24 moves laterally, thereby fine-tuning the vibrating head 8 and the hose 4 longitudinally to facilitate the alignment of the vibrating head 8 and the steel cage 10.

[0047] Example 3

[0048] The difference between this embodiment and embodiment 2 is that:

[0049] A camera for detecting the position of the steel cage 10 in the mold 7 is provided below the first transmission unit 3. The camera is a visual recognition camera. The mesh of the steel cage 10 is visually recognized by the camera, and the operation of the first reduction motor 13, the second reduction motor 21 and the fourth reduction motor 31 is controlled to automatically locate the position of the vibrating head 8, so that the vibrating head 8 is automatically aligned with the mesh of the steel cage 10, thereby improving work efficiency.

[0050] The above-mentioned embodiments describe content in a relatively detailed and specific manner, and express the preferred embodiments of the present utility model. They are only used to illustrate the technical ideas and features of the present utility model, and their purpose is to enable technicians in this field to understand the content of the present utility model and implement it accordingly, but they are not limited to the present utility model. The patent scope of the present utility model cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present utility model, for researchers or technicians in this field, without departing from the structure of the present utility model, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present utility model.

Claims

1. A box girder web vibrator, characterized in that, It includes a longitudinal longitudinal rail (2) fixedly arranged beside the mold (7) of the box girder, and a cross beam (12) arranged above the mold (7) of the box girder and capable of longitudinally traveling along the longitudinal rail (2). Below the cross beam (12), a first conveying unit (3) capable of laterally traveling along the cross beam (12) and a second conveying unit (5) capable of laterally traveling along the cross beam (12) are sequentially arranged in the transverse direction. A vibrator is arranged on the first driving unit and the second conveying unit (5). The vibrating motor (6) of the vibrator is fixedly connected to the second conveying unit (5). The hose (4) of the vibrator passes through the first conveying unit (3), and the first conveying unit (3) is used for conveying the hose (4).

2. The vibrating machine for the web of box girder according to claim 1, characterized in that A transverse rack (11) is fixedly arranged on the cross beam (12). The first conveying unit (3) includes a first bracket (16) arranged on the cross beam (12), a first reduction motor (13) fixedly arranged on the first bracket (16), a first gear (14) arranged on the output shaft of the first reduction motor (13), a third bracket (24) arranged below the first bracket (16), a conduction wheel (22) rotatably connected in the third bracket (24), and a third reduction motor (25) fixedly arranged on the third bracket (24) for driving the conduction wheel (22) to rotate; the first gear (14) meshes with the rack (11). A pressing wheel (27) is arranged beside the conduction wheel (22). The pressing wheel (27) is elastically connected to the third bracket (24). The hose (4) passes through the first bracket (16). The hose (4) is clamped between the pressing wheel (27) and the conduction wheel (22). A first guide wheel (15) capable of rolling along the cross beam (12) is rotatably connected to the first bracket (16).

3. The vibrating machine for box girder webs according to claim 2, wherein, A longitudinal fine adjustment unit (17) is arranged between the first bracket (16) and the third bracket (24). The longitudinal fine adjustment unit (17) includes a first support plate (28) fixedly arranged below the first bracket (16), a second support plate (30) fixedly arranged above the third bracket (24), a driving box (32) fixedly arranged below the first bracket (16), a support block (34) fixedly arranged above the third bracket (24), and a longitudinal lead screw (33) fixedly arranged on the support block (34); the lead screw (33) penetrates through the driving box (32). The first bracket (16) and the third bracket (24) are slidably connected through a longitudinal linear slide rail module (29) arranged between the first bracket (16) and the third bracket (24). A nut is rotatably connected in the driving box (32). The nut is threadedly connected to the lead screw (33). A fourth reduction motor (31) in transmission connection with the nut is fixedly arranged on the driving box (32).

4. The vibrating machine for the web of box girder according to claim 2, characterized in that, An inverted triangle-shaped guide head (23) is provided below the third bracket (24), the lower end of the guide head (23) is sleeved outside the hose (4), an electric cylinder (26) is provided inside the third bracket (24), one end of the top of the guide head (23) is hinged to the third bracket (24), one end of the electric cylinder (26) is hinged to the third bracket (24), and the other end is hinged to the other end of the top of the guide head (23), and when the electric cylinder (26) is in motion, the lower end of the guide head (23) is driven to swing.

5. A box girder web vibrator according to claim 1, characterized in that, A transverse rack (11) is fixedly arranged on the crossbeam (12); the second transmission unit (5) comprises a second bracket (20) arranged on the crossbeam (12), a second reduction motor (21) fixedly arranged on the second bracket (20), and a second gear (18) arranged on the output shaft of the second reduction motor (21); the second gear (18) is meshed with the rack (11); a second guide wheel (19) which can roll along the crossbeam (12) is rotatably connected to the second bracket (20); and the vibrating motor (6) is fixedly connected to the second bracket (20).

6. A box girder web vibrator according to claim 2, characterized in that, There are at least two conducting wheels (22) arranged along the bending direction of the hose (4), the conducting wheel (22) close to the vibrating motor (6) is higher than the conducting wheel (22) close to the vibrating head (8), and the third reduction motor (25) is drivingly connected to at least one conducting wheel (22).

7. The vibrating machine for the web of box girder according to claim 1, wherein A camera for detecting the position of the steel cage (10) in the mould (7) is provided below the first conveying unit (3).

8. The vibrating machine for the web of box girder according to claim 1, wherein, A longitudinal travel module (1) is provided on the longitudinal rail (2), and one or more transverse beams (12) are fixedly connected to the longitudinal travel module (1).

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