Multi-insertion-point insertion type steel box girder vibrating device

Abstract

The invention relates to the technical field of steel box girder production, and discloses a multi-insertion-point insertion type steel box girder vibrating device which comprises moving mechanisms and hydraulic lifting rods, the moving mechanisms are arranged on the two sides of a steel box girder, the hydraulic lifting rods are connected to the top ends of the moving mechanisms, and the moving mechanisms and the hydraulic lifting rods are used for moving vibrating rods to preset positions; the portal frame is connected to the top end of the hydraulic lifting rod and arranged above the steel box girder; the two vibrating rod mounting beams are symmetrically connected to the two sides of the cross beam of the portal frame, and the multiple vibrating rods are evenly connected to the bottom ends of the vibrating rod mounting beams. The vibrating rods can be rapidly positioned to the preset vibrating position and inserted into the steel box girder concrete by the preset depth, the concrete at the current position is vibrated through the two sets of vibrating rods, the single-time vibrating range is expanded, the problems that in the vibrating process, shutdown is frequent, vibrating point positions are too many, and consequently the operation difficulty is large, and energy is wasted are effectively solved, and the working efficiency is improved. And the vibrating efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel box girder production, and more specifically, to an insertion-type steel box girder vibrating device with multiple insertion points. Background Art

[0002] The special bridge across the Ningluo Expressway implemented this time is a part of the bridge section of the reconstruction project of the G105 Taihe Sangying to Sanyuan section.

[0003] As an important part of the continuous beam bridge, the appearance quality of the prestressed concrete box girder will directly reflect the reliability and safety of the entire bridge project quality, and more reflect the project management level and construction technology. After investigation, there are many appearance quality defects in the on-site steel box girder, and the quality is difficult to guarantee. Among them, the unreasonable selection of concrete vibrating tools is the main influencing factor for the appearance defects of the steel box girder concrete. The attached vibrator is used for vibrating the webs of the precast box girders on site. Since the attached vibrator belongs to high-frequency vibration and directly acts on the steel formwork, the corrugated pipe vibrates together with the vibrator, and the slurry flows quickly along the corrugated pipe, which is easy to cause over-vibration and produce water ripples.

[0004] In the prior art, such as the utility model patent with the publication number CN219276136U, a box girder concrete vibrating device is disclosed. Two guide rails are arranged on the top of the box girder formwork, and the distance between the two guide rails is greater than the width of the top plate of the box girder formwork; both guide rails extend along the length direction of the box girder formwork, and the length of each guide rail is greater than the length of the box girder formwork; a walking mechanism is respectively arranged on each guide rail; the rack is fixed on the upper surface of the guide rail, and the gear meshes with the rack; both ends of the gear shaft are rotatably connected to the two side plates of the frame; one end of the gear shaft is connected to the output end of the motor; the motor is fixed on the frame. One end of the telescopic mechanism is fixed on the frame, and the other end of the telescopic mechanism is connected to the vibrating mechanism, which can drive the vibrating mechanism to move up and down along the height direction of the box girder formwork.

[0005] This device solves the problem that vibrating concrete is not only time-consuming and laborious at present, but also the vibrating quality is difficult to guarantee. However, this device adopts a single-row vibrating device, the vibrating range is limited, the vibrating process needs to stop frequently to move, the vibrating efficiency is low, and energy is wasted during the production process of precast steel box girders.

[0006] Therefore, it is necessary to propose an insertion-type steel box girder vibrating device with multiple insertion points to at least partially solve the problems existing in the prior art. Summary of the Invention

[0007] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in the Detailed Description section. The Summary of the Invention section of the present invention is not intended to attempt to define the key features and essential technical features of the claimed technical solution, let alone attempt to determine the protection scope of the claimed technical solution.

[0008] To at least partially solve the above problems, the present invention provides a multi - plug - in type vibrating device for steel box girders, comprising:

[0009] A moving mechanism and a hydraulic lifting rod. The moving mechanism is arranged on both sides of the steel box girder, and the hydraulic lifting rod is connected to the top of the moving mechanism. The moving mechanism and the hydraulic lifting rod are used to move the vibrating rod to a preset position;

[0010] A gantry, which is connected to the top of the hydraulic lifting rod and arranged above the steel box girder;

[0011] A vibrating rod mounting beam. Two vibrating rod mounting beams are symmetrically connected to both sides of the cross - beam of the gantry, and a plurality of vibrating rods are evenly connected to the bottom end of the vibrating rod mounting beam.

[0012] Preferably, the moving mechanism comprises: a vibrating slide rail and a slide seat. Two vibrating slide rails are arranged on both sides of the top of the steel box girder, the slide seat is slidably connected to the vibrating slide rail, and the slide seat is connected to the hydraulic lifting rod.

[0013] Preferably, the moving mechanism further comprises: a support frame, which is connected to the bottom end of the vibrating slide rail, and an inclined plate that is attached to the side surface of the steel box girder is connected to the side end of the support frame.

[0014] Preferably, a plurality of vibrating seats are connected to the bottom end of the cross - beam, the vibrating rod is installed in the vibrating seat and the vibrating rod is arranged vertically downward.

[0015] Preferably, the depth that the vibrating rod inserts into the already - poured lower - layer concrete is 10 cm, the vibrating time when the vibrating rod is put in is controlled within 20 - 30 s, and the descending speed of the vibrating rod is greater than the ascending speed.

[0016] Preferably, an adjusting unit is connected to the end of the cross - beam. The adjusting unit comprises:

[0017] A transmission box, which is connected to one end of the cross - beam;

[0018] A transmission bent rod, which is rotatably connected to the inner wall of the transmission box. One end of the transmission bent rod is connected to the output end of the motor. The direction of the transmission bent rod is perpendicular to the direction of the cross - beam. Two bending sections are arranged on the transmission bent rod, the bending directions of the two bending sections are opposite, and the two bending sections are respectively hinged to the two vibrating rod mounting beams through rockers. The two ends of the vibrating rod mounting beam are respectively slidably connected in the transmission box and the cross - beam;

[0019] The push plate is connected to the end of the vibrating rod mounting beam, and a spring is connected between the push plate and the inner wall of the transmission box.

[0020] Preferably, the transmission box includes:

[0021] A worm, the worm is rotatably connected to the inner wall of the transmission box, and the length direction of the worm is arranged parallel to the direction of the cross beam;

[0022] A rotating shaft, the rotating shaft is connected to the center of the worm and extends towards the transmission bent rod;

[0023] A bevel gear set, the two bevel gears of the bevel gear set are respectively connected to the rotating shaft and the transmission bent rod, and the two bevel gears are meshed and connected;

[0024] A rotating cylinder, the rotating cylinder is concentrically connected to the rotating shaft, and the rotating cylinder is slidably connected to the inner wall of the transmission box;

[0025] Two worm wheels, the two worm wheels are symmetrically arranged on both sides of the worm and are meshed with the worm.

[0026] Preferably, a limiting unit is symmetrically arranged in the transmission box, and the limiting unit includes:

[0027] A first side plate, the two first side plates are connected to the inner wall of the transmission box and are arranged close to the worm wheel;

[0028] A second side plate, the two second side plates are connected to the inner wall of the transmission box and are arranged close to the vibrating rod mounting beam;

[0029] A limiting disc, the limiting disc is rotatably connected to the inner side of the first side plate, and the rotating shaft of the limiting disc passes through the first side plate and is connected to the worm wheel, and the limiting disc is slidably connected to the second side plate;

[0030] A cam, the cam is connected to the rotating shaft of the limiting disc, and protrusions are arranged at both ends of the cam.

[0031] Preferably, the limiting unit further includes:

[0032] A fixing plate, the fixing plate is connected to the inner side of the second side plate, a sliding column is slidably connected in the fixing plate, and an arc surface is arranged at one end of the sliding column;

[0033] A first limiting frame, the first limiting frame is connected to the other ends of the two sliding columns at the same time, and a spring is connected between the first limiting frame and the fixing plate, and the first limiting frame surrounds the outside of the vibrating rod mounting beam;

[0034] A first limiting column, the first limiting column is connected to the side of the first limiting frame close to the vibrating rod mounting beam, and a first limiting hole for the first limiting column to be inserted is arranged on the vibrating rod mounting beam.

[0035] Preferably, the limiting unit further includes:

[0036] A magnetic frame, the magnetic frame is connected to the side of the first side plate away from the vibrating rod mounting beam;

[0037] The second limiting frame is slidably connected within the magnetic frame, and a spring is connected between the second limiting frames on both sides of the worm. After the magnetic frame is energized, it has magnetism and attracts the second limiting frame to move towards the side away from the vibrating rod installation beam;

[0038] The second limiting post is connected to the side of the second limiting frame close to the vibrating rod installation beam. The second limiting post passes through the magnetic frame. There are two second limiting holes at the positions of the limiting disk corresponding to the protruding parts at both ends of the cam, and the second limiting post is inserted into the second limiting holes.

[0039] Compared with the prior art, the present invention has at least the following beneficial effects:

[0040] The insertion type steel box girder vibrating device with multiple insertion points provided by the present invention can quickly position the vibrating rod to the preset vibrating position and insert it into the preset depth of the steel box girder concrete. Two groups of vibrating rods arranged at intervals are simultaneously set on the gantry, and the concrete at the current position is vibrated by the two groups of vibrating rods, expanding the scope of single vibration, effectively solving the problems of frequent shutdown during the vibration process, excessive vibration points, resulting in large operation difficulty and energy waste, and effectively improving the vibration efficiency.

[0041] For the insertion type steel box girder vibrating device with multiple insertion points of the present invention, other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0043] Figure 1 is a schematic structural diagram of an insertion type steel box girder vibrating device with multiple insertion points of the present invention;

[0044] Figure 2 is a schematic installation structural diagram of an insertion type steel box girder vibrating device with multiple insertion points of the present invention;

[0045] Figure 3 is a schematic cross-sectional structural diagram of a moving mechanism of an insertion type steel box girder vibrating device with multiple insertion points of the present invention;

[0046] Figure 4 is a schematic cross-sectional structural diagram of a cross beam of an insertion type steel box girder vibrating device with multiple insertion points of the present invention;

[0047] Figure 5 is a schematic cross-sectional structural diagram of a transmission box of an insertion type steel box girder vibrating device with multiple insertion points of the present invention;

[0048] Figure 6This is a schematic structural diagram of a limiting unit of an insertion-type steel box girder vibrating device with multiple insertion points according to the present invention.

[0049] In the figure: 1. Moving mechanism; 2. Steel box girder; 3. Gantry; 4. Vibrating rod installation beam; 5. Cross beam; 6. Vibrating rod; 7. Hydraulic lifting rod; 11. Vibrating slide rail; 12. Slide seat; 13. Support frame; 14. Oblique plate; 15. Vibrating seat; 20. Motor; 21. Transmission box; 22. Transmission bent rod; 23. Bending section; 24. Pushing plate; 25. Worm; 26. Rotating shaft; 27. Bevel gear set; 28. Rotary drum; 29. Worm gear; 31. Side plate one; 32. Side plate two; 33. Limiting disc; 34. Cam; 35. Fixed plate; 36. Slide column; 37. Limiting frame one; 38. Limiting column one; 39. Magnetic frame; 40. Limiting frame two; 41. Limiting column two. Detailed implementation manners

[0050] The following further elaborates on the present invention in conjunction with the accompanying drawings and embodiments, so that those skilled in the art can implement it with reference to the text of the specification.

[0051] It should be understood that terms such as "having", "including", and "comprising" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0052] Embodiment 1:

[0053] As Figure 1 、 Figure 2 shown, the present invention provides an insertion-type steel box girder vibrating device with multiple insertion points, including:

[0054] A moving mechanism 1 and a hydraulic lifting rod 7. The moving mechanism 1 is arranged on both sides of the steel box girder 2, and the hydraulic lifting rod 7 is connected to the top of the moving mechanism 1. The moving mechanism 1 and the hydraulic lifting rod 7 are used to move the vibrating rod 6 to a preset position;

[0055] A gantry 3, which is connected to the top of the hydraulic lifting rod 7 and arranged above the steel box girder 2;

[0056] Vibrating rod installation beams 4. Two vibrating rod installation beams 4 are symmetrically connected to both sides of the cross beam 5 of the gantry 3, and a plurality of vibrating rods 6 are evenly connected to the bottom ends of the vibrating rod installation beams 4.

[0057] The moving mechanism 1 includes: vibrating slide rails 11 and a slide seat 12. Two vibrating slide rails 11 are arranged on both sides of the top end of the steel box girder 2, and the slide seat 12 is slidably connected to the vibrating slide rails 11. The slide seat 12 is connected to the hydraulic lifting rod.

[0058] A plurality of vibrating seats 15 are connected to the bottom end of the cross beam 5. The vibrating rod 6 is installed in the vibrating seat 15 and the vibrating rod 6 is arranged vertically downward.

[0059] The working principle and beneficial effects of the above technical solution are as follows:

[0060] When a multi-point plug-in type vibrating device for steel box girders is in use, the moving mechanism 1 is used to move the hydraulic lifting rod 7 to both sides of the preset vibrating position of the steel box girder 2. The vibrating rods 6 on the gantry 3 are located directly above the steel box girder 2. Then, the output end of the hydraulic lifting rod 7 is started to move downward to adjust the height of the vibrating rods 6 so that they extend into the preset depth of the steel box girder 2. Two groups of vibrating rod mounting beams 4 are arranged on the cross beam 5 of the gantry 3 to support the two groups of vibrating rods 6. At the same time, the vibrating rods 6 are started to vibrate the concrete in the current section of the steel box girder 2; after the vibration is completed, the operation of the vibrating rods 6 is stopped, and the moving mechanism 1 drives the vibrating rods 6 to move to the next preset position for vibration; by repeating the above actions, the vibration of the cast concrete in the steel box girder 2 can be completed.

[0061] The moving mechanism 1 is set in the form of a vibrating slide rail 11 and a sliding seat 12. The vibrating slide rail 11 can be set as an electric vibrating slide rail, and the electric vibrating slide rail drives the sliding seat 12 to move at a constant speed, which can quickly locate to the vibrating position and ensure that there is no interference between adjacent two groups of vibrating rods 6 during movement.

[0062] The vibrating rods 6 are installed in the vibrating seats 15 so that the vibrating rods 6 can move synchronously with the vibrating rod mounting beams 4. Since the depths on both sides of the steel box girder 2 are lower than the depth in the middle, by using vibrating rods 6 with different lengths on both sides and in the middle, the depths of the vibrating rods 6 penetrating into the concrete of the steel box girder 2 are the same.

[0063] The present invention provides a multi-point plug-in type vibrating device for steel box girders, which can quickly locate the vibrating rods 6 to the preset vibrating positions and insert them into the preset depth of the concrete of the steel box girder 2. Two groups of vibrating rods 6 arranged at intervals are simultaneously set on the gantry 3, and the two groups of vibrating rods 6 are used to vibrate the concrete at the current position, expanding the scope of single vibration, effectively solving the problems of frequent shutdown during the vibration process, too many vibrating points, resulting in large operation difficulty and energy waste, and effectively improving the vibration efficiency.

[0064] Embodiment 2:

[0065] As Figure 2 shown, on the basis of the above Embodiment 1, the moving mechanism 1 further includes: a support frame 13, the support frame 13 is connected to the bottom end of the vibrating slide rail 11, and an inclined plate 14 that fits the side surface of the steel box girder 2 is connected to the side end of the support frame 13.

[0066] The working principle and beneficial effects of the above technical solution are as follows:

[0067] When the moving mechanism 1 is in use, the support frame 13 is used to support the vibrating slide rail 11. The inclined plate 14 is attached to the side of the steel box girder 2 to ensure the positions of the support frame 13 and the steel box girder 2, so that the two vibrating slide rails 11 are symmetrically arranged on both sides of the steel box girder 2, serving as the reference for adjusting the position of the vibrating rod 6, ensuring accurate position during vibration and avoiding uneven vibration.

[0068] Embodiment 3:

[0069] Based on the above Embodiment 1, the vibrating rod 6 is inserted into the already poured lower-layer concrete to a depth of 10 cm. The placement time of the vibrating rod 6 is controlled within 20 - 30 s, and the descending speed of the vibrating rod 6 is greater than the ascending speed.

[0070] The working principle and beneficial effects of the above technical solution are as follows:

[0071] When vibrating the concrete of the web of the steel box girder 2, the vibrating tool is changed from the original attached vibrator to a Φ30mm inserted vibrating rod 6. The vibrating rod 6 is inserted into the already poured lower-layer concrete to a depth of about 10 cm, so that the vibrating rod 6 does not come into contact with the steel formwork, the prestressed hole-forming rubber tube, and the embedded parts, avoiding the generation of water ripples due to resonance of the structural members. At the same time, the vibrating time of the concrete is strictly controlled within 20 - 30 s to avoid over-vibration of the concrete, improve the uniformity of concrete vibration, and improve the appearance quality of the concrete.

[0072] Before the implementation of this embodiment, the experimental personnel conducted an appearance quality inspection on the box girders constructed in the precast beam yard of the special bridge across the Ningluo Expressway according to the relevant standards of the "Technical Specifications for Highway Bridge and Culvert Construction" (JTG / T 3650 - 2020) and the "Quality Inspection and Evaluation Standards for Highway Engineering" (JTG F80 / 1 - 2017). A total of 240 points were inspected, and the qualified rate was 87.08%. After statistics, summary, and compilation, the statistical analysis table is as follows in Table 1:

[0073] Table 1

[0074] Serial number Inspection item Frequency (points) Cumulative frequency (points) Frequency (%) Cumulative frequency (%) 1 Color difference 12 12 38.71 38.71％ 2 Water pattern 10 22 32.26％ 70.97％ 3 Contamination 4 26 12.90％ 83.87％ 4 Pitted surface 2 28 6.45％ 90.32％ 5 Honeycomb 2 30 6.45％ 96.77 6 Others 1 31 11.76％ 100.00％ 7 Total 31 / 100 /

[0075] In this embodiment, the experimental personnel inspected the precast box girders after construction. This time, a total of 240 points were inspected, among which 10 points were unqualified, and the qualified rate reached 95.83%, exceeding the original target value of 95%. After statistics, summary, and compilation, the statistical analysis table is as follows in Table 2:

[0076] Table 2

[0077] Serial number Inspection item Frequency (points) Cumulative frequency (points) Frequency (%) Cumulative frequency (%) 1 Honeycomb 3 3 30 30 2 Pitted surface 2 5 20 50 3 Contamination 2 7 20 70 4 Water pattern 1 8 10 80 5 Color difference 1 9 10 90 6 Others 1 10 10 100 7 Total 10 / 100 /

[0078] In summary, through the improvement of the vibrating device, the color difference and water streaks, which were the main problems before, have been reduced to minor problems. The qualified rate of one-time forming of precast box girders has been increased to 95.83%, exceeding the target value of 95%. It ensures the qualified rate of the appearance of precast box girders at one time and lays a foundation for the subsequent construction of precast box girders and continuous girders.

[0079] Adopting a scientific and reasonable vibrating method not only improves the project quality, speeds up the construction progress, saves labor force, improves labor productivity, but also greatly improves the integrity of concrete. It reduces the damage degree of steel box girders and the repair times during the service stage, and reduces resource consumption and energy waste.

[0080] Example 4:

[0081] As Figure 4 、 Figure 5 shown, on the basis of the above-mentioned Example 1, an adjusting unit is connected to the end of the cross beam 5. The adjusting unit includes:

[0082] A transmission box 21, and the transmission box 21 is connected to one end of the cross beam 5;

[0083] A transmission bent rod 22, the transmission bent rod 22 is rotatably connected to the inner wall of the transmission box 21. One end of the transmission bent rod 22 is connected to the output end of the motor 20. The direction of the transmission bent rod 22 is perpendicular to the direction of the cross beam 5. Two bending sections 23 are arranged on the transmission bent rod 22. The bending directions of the two bending sections 23 are opposite, and the two bending sections 23 are respectively hinged to the two vibrating rod mounting beams 4 through rockers. Both ends of the vibrating rod mounting beam 4 are slidably connected to the inside of the transmission box 21 and the cross beam 5;

[0084] A push plate 24, the push plate 24 is connected to the end of the vibrating rod mounting beam 4, and a spring is connected between the push plate 24 and the inner wall of the transmission box 21.

[0085] The working principle and beneficial effects of the above technical solution are as follows:

[0086] When the adjusting unit is used, it includes two vibrating modes. When the first vibrating mode is adopted, the two bending sections 23 of the transmission bent rod 22 are in the horizontal position, and the positions of the vibrating rods 6 on the two vibrating rod mounting beams 4 are aligned, and the vibrating intensity of a single vibrating point is relatively strong, improving the vibrating depth.

[0087] When the second vibrating mode is adopted, the motor 20 is started to make the output end rotate, driving the transmission bent rod 22 to rotate 180 degrees, so that the two bending sections 23 of the transmission bent rod 22 rotate to opposite positions. The bending section 23 drives the vibrating rod mounting beam 4 to slide in the transmission box 21 through the rocker, so that the positions of the two groups of vibrating rods 6 on the vibrating rod mounting beam 4 are staggered, thereby increasing the arrangement density of the vibrating rods 6 and helping to eliminate the vibrating dead angle of the vibrating rods 6.

[0088] During the concrete vibration process of the steel box girder 2, according to the position of the embedded parts of the steel box girder 2, the adjustment unit is activated to switch the vibration mode, avoiding contact between the vibrating rod 6 and the embedded parts, without the need to remove the interfering vibrating rod 6. The vibration effect is ensured in terms of vibration intensity and vibration range in the two modes respectively, improving the surface quality of the concrete.

[0089] Embodiment 5:

[0090] As Figure 4 - Figure 6 shown, on the basis of the above Embodiment 4, the transmission box 21 includes:

[0091] A worm 25, the worm 25 is rotatably connected to the inner wall of the transmission box 21, and the length direction of the worm 25 is arranged parallel to the direction of the cross beam 5;

[0092] A rotating shaft 26, the rotating shaft 26 is connected to the center of the worm 25 and extends towards the transmission bent rod 22;

[0093] A bevel gear set 27, the two bevel gears of the bevel gear set 27 are respectively connected to the rotating shaft 26 and the transmission bent rod 22, and the two bevel gears are meshed and connected;

[0094] A rotating cylinder 28, the rotating cylinder 28 is concentrically connected to the rotating shaft 26, and the rotating cylinder 28 is slidably connected to the inner wall of the transmission box 21;

[0095] Two worms 29, the two worms 29 are symmetrically arranged on both sides of the worm 25 and are meshed with the worm 25.

[0096] The working principle and beneficial effects of the above technical solution are as follows:

[0097] When the transmission bent rod 22 rotates, it drives one bevel gear of the bevel gear set 27 to rotate. Through meshing transmission, it drives the other bevel gear to rotate. The other bevel gear drives the rotating shaft 26 to rotate synchronously. The rotating shaft 26 drives the worm 25 to rotate. Through the meshing transmission between the worm 25 and the worm 29, it drives the two worms 29 to rotate in opposite directions; the rotating shaft 26 drives the rotating cylinder 28 to rotate on the inner wall of the transmission box 21, playing a supporting and guiding role for the rotating shaft 26.

[0098] Embodiment 6:

[0099] As Figure 6 shown, on the basis of the above Embodiment 5, a limiting unit is symmetrically arranged in the transmission box 21, and the limiting unit includes:

[0100] A first side plate 31, the two first side plates 31 are connected to the inner wall of the transmission box 21 and are arranged close to the worm 29;

[0101] A second side plate 32, the two second side plates 32 are connected to the inner wall of the transmission box 21 and are arranged close to the vibrating rod mounting beam 4;

[0102] The limiting disk 33 is rotatably connected to the inner side of the first side plate 31, and the rotating shaft of the limiting disk 33 passes through the first side plate 31 and is connected to the worm gear 29. The limiting disk 33 is slidably connected to the second side plate 32;

[0103] The cam 34 is connected to the rotating shaft of the limiting disk 33, and protruding portions are provided at both ends of the cam 34;

[0104] The fixing plate 35 is connected to the inner side of the second side plate 32. A sliding column 36 is slidably connected inside the fixing plate 35, and an arc-shaped surface is provided at one end of the sliding column 36;

[0105] The first limiting frame 37 is connected to the other ends of the two sliding columns 36 at the same time, and a spring is connected between the first limiting frame 37 and the fixing plate 35. The first limiting frame 37 surrounds the outside of the vibrating rod mounting beam 4;

[0106] The first limiting column 38 is connected to the side of the first limiting frame 37 close to the vibrating rod mounting beam 4, and a first limiting hole for the first limiting column 38 to be inserted is provided on the vibrating rod mounting beam 4.

[0107] The working principle and beneficial effects of the above technical solution are as follows:

[0108] When the limiting unit is in use, the worm gear 29 drives the rotating shaft of the limiting disk 33 to rotate, so that the limiting disk 33 and the cam 34 rotate accordingly. When the cam 34 rotates to abut against the sliding column 36, the protruding portion of the cam 34 presses the sliding column 36, causing it to slide in the through hole of the fixing plate 35. The sliding column 36 drives the first limiting frame 37 to slide towards the vibrating rod mounting beam 4, so that the first limiting column 38 is inserted into the first limiting hole, and the vibrating rod mounting beam 4 is limited. The first limiting holes on the vibrating rod mounting beam 4 are provided in two, corresponding to the positions of the vibrating rod mounting beam 4 in two vibration modes respectively.

[0109] Through the above structural design, after the position of the vibrating rod mounting beam 4 is adjusted, the limiting unit effectively realizes the limiting and fixing of the vibrating rod mounting beam 4, avoiding the vibration of the vibrating rod 6 during the vibration process from being transmitted to the vibrating rod mounting beam 4, resulting in loosening and displacement of the vibrating rod mounting beam 4. At the same time, the transmission link of the vibration wave is increased, and the vibration wave is further attenuated. Through the spring between the first limiting frame 37 and the fixing plate 35, the vibration is buffered, improving the seismic resistance of the vibrating rod mounting beam 4 and having better stability.

[0110] Embodiment 7:

[0111] As Figure 6 shown, on the basis of the above Embodiment 6, the limiting unit further includes:

[0112] The magnetic frame 39 is connected to the side of the first side plate 31 away from the vibrating rod mounting beam 4;

[0113] The second limiting frame 40 is slidably connected within the magnetic frame 39, and a spring is connected between the second limiting frames 40 on both sides of the worm 25. After the magnetic frame 39 is powered on, it has magnetism and attracts the second limiting frame 40 to move towards the side away from the vibrating rod mounting beam 4;

[0114] The second limiting post 41 is connected to the side of the second limiting frame 40 close to the vibrating rod mounting beam 4. The second limiting post 41 passes through the magnetic frame 39. Two second limiting holes are provided at positions corresponding to the protruding parts at both ends of the limiting disc 33 and the second limiting post 41 is inserted into the second limiting holes.

[0115] The working principle and beneficial effects of the above technical solution are as follows:

[0116] When the first limiting post 38 is inserted into the first limiting hole, the second limiting post 41 slides out of the magnetic frame 39 under the action of the spring, and the second limiting post 41 is inserted into the second limiting hole on the other side of the limiting disc 33 to perform secondary limiting on the limiting disc 33. At this time, the magnetic frame 39 is not powered on; when the adjusting unit makes another adjustment, the motor 20 is started and the magnetic frame 39 is powered on at the same time. The magnetic frame 39 generates magnetism to attract the second limiting frame 40, so that the second limiting post 41 is separated from the second limiting hole, and the limiting disc 33 can rotate freely.

[0117] When the vibration intensity of the vibrating rod 6 is relatively large or resonance occurs due to non-standard operation, there is a risk that the first limiting post 38 of the limiting unit and the first limiting hole will become loose and come out. Through the above structural design, the secondary limiting of the limiting disc 33 is effectively realized, the possibility of the deviation of the vibrating rod mounting beam 4 is reduced, and the vibration wave transmission is slowed down by the spring between the second limiting frames 40 on both sides, reducing the interference and resonance between the two vibrating rod mounting beams 4.

[0118] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0119] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0120] Although the embodiments of the present invention have been disclosed above, they are not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. An insertable steel box girder vibrating device with multiple insertion points, characterized in that, Comprising: A moving mechanism (1) and a hydraulic lifting rod (7). The moving mechanism (1) is arranged on both sides of the steel box girder (2), and the hydraulic lifting rod (7) is connected to the top of the moving mechanism (1). The moving mechanism (1) and the hydraulic lifting rod (7) are used to move the vibrating rod (6) to a preset position; A gantry (3), which is connected to the top of the hydraulic lifting rod (7) and arranged above the steel box girder (2); Vibrating rod mounting beams (4). Two vibrating rod mounting beams (4) are symmetrically connected to both sides of the cross beam (5) of the gantry (3), and a plurality of vibrating rods (6) are evenly connected to the bottom ends of the vibrating rod mounting beams (4).

2. The plug-in steel box girder vibrating device with multiple plug points according to claim 1, characterized in that, The moving mechanism (1) includes: a vibrating slide rail (11) and a sliding seat (12). Two vibrating slide rails (11) are arranged on both sides of the top of the steel box girder (2), and the sliding seat (12) is slidably connected to the vibrating slide rail (11). The sliding seat (12) is connected to the hydraulic lifting rod.

3. The plug-in steel box girder vibrating device with multiple plug points according to claim 2, characterized in that, The moving mechanism (1) further includes: a support frame (13). The support frame (13) is connected to the bottom end of the vibrating slide rail (11), and an inclined plate (14) that fits the side surface of the steel box girder (2) is connected to the side end of the support frame (13).

4. The plug-in steel box girder vibrating device with multiple plug points according to claim 1, characterized in that, A plurality of vibrating seats (15) are connected to the bottom end of the vibrating rod mounting beam (4), and the vibrating rod (6) is installed in the vibrating seat (15) and the vibrating rod (6) is arranged vertically downward.

5. The plug-in steel box girder vibrating device with multiple plug points according to claim 1, characterized in that, The vibrating rod (6) is inserted into the poured lower-layer concrete to a depth of 10 cm. The time for placing the vibrating rod (6) for vibration is controlled within 20 - 30 s, and the descending speed of the vibrating rod (6) is greater than the ascending speed.

6. The plug-in steel box girder vibrating device with multiple plug points according to claim 1, characterized in that, An adjusting unit is connected to the end of the cross beam (5). The adjusting unit includes: A transmission box (21), which is connected to one end of the cross beam (5); A transmission bent rod (22), which is rotatably connected to the inner wall of the transmission box (21). One end of the transmission bent rod (22) is connected to the output end of the motor (20). The direction of the transmission bent rod (22) is perpendicular to the direction of the cross beam (5). Two bending segments (23) are provided on the transmission bent rod (22). The bending directions of the two bending segments (23) are opposite, and the two bending segments (23) are respectively hinged to the two vibrating rod mounting beams (4) through rockers. Both ends of the vibrating rod mounting beam (4) are slidably connected in the transmission box (21) and the cross beam (5); A push plate (24), which is connected to the end of the vibrating rod mounting beam (4), and a spring is connected between the push plate (24) and the inner wall of the transmission box (21).

7. The plug-in steel box girder vibrating device with multiple plug points according to claim 6, characterized in that, The transmission box (21) includes: A worm (25), which is rotatably connected to the inner wall of the transmission box (21). The length direction of the worm (25) is parallel to the direction of the cross beam (5); A rotating shaft (26), which is connected to the center of the worm (25) and extends towards the direction of the transmission bent rod (22); A bevel gear set (27). The two bevel gears of the bevel gear set (27) are respectively connected to the rotating shaft (26) and the transmission bent rod (22), and the two bevel gears are meshed and connected; A rotating drum (28), which is concentrically connected to the rotating shaft (26), and the rotating drum (28) is slidably connected to the inner wall of the transmission box (21); Two worm wheels (29), which are symmetrically arranged on both sides of the worm (25) and meshed with the worm (25).

8. The plug-in steel box girder vibrating device with multiple plug points according to claim 7, characterized in that, There are symmetrically arranged limiting units inside the transmission case (21), and the limiting units include: The first side plate (31), and two first side plates (31) are connected to the inner wall of the transmission case (21) and are arranged close to the worm gear (29); The second side plate (32), and two second side plates (32) are connected to the inner wall of the transmission case (21) and are arranged close to the vibrating rod mounting beam (4); The limiting disc (33), the limiting disc (33) is rotatably connected to the inner side of the first side plate (31), and the rotating shaft of the limiting disc (33) passes through the first side plate (31) and is connected to the worm gear (29), and the limiting disc (33) is slidably connected to the second side plate (32); The cam (34), the cam (34) is connected to the rotating shaft of the limiting disc (33), and there are protruding parts at both ends of the cam (34).

9. The plug-in steel box girder vibrating device with multiple plug points according to claim 8, characterized in that, The limiting unit further includes: The fixing plate (35), the fixing plate (35) is connected to the inner side of the second side plate (32), a sliding column (36) is slidably connected inside the fixing plate (35), and one end of the sliding column (36) is provided with an arc surface; The first limiting frame (37), the first limiting frame (37) is connected to the other ends of the two sliding columns (36) at the same time, and a spring is connected between the first limiting frame (37) and the fixing plate (35), and the first limiting frame (37) surrounds the outside of the vibrating rod mounting beam (4); The first limiting column (38), the first limiting column (38) is connected to the side of the first limiting frame (37) close to the vibrating rod mounting beam (4), and a first limiting hole for the first limiting column (38) to be inserted is provided on the vibrating rod mounting beam (4).

10. The plug-in steel box girder vibrating device with multiple plug points according to claim 9, characterized in that, The limiting unit further includes: The magnetic frame (39), the magnetic frame (39) is connected to the side of the first side plate (31) away from the vibrating rod mounting beam (4); The second limiting frame (40), the second limiting frame (40) is slidably connected inside the magnetic frame (39), and a spring is connected between the second limiting frames (40) on both sides of the worm (25), and the magnetic frame (39) has magnetism after being electrified and attracts the second limiting frame (40) to move towards the side away from the vibrating rod mounting beam (4); The second limiting column (41), the second limiting column (41) is connected to the side of the second limiting frame (40) close to the vibrating rod mounting beam (4), the second limiting column (41) passes through the magnetic frame (39), and two limiting holes are provided at the positions of the limiting disc (33) corresponding to the protruding parts at both ends of the cam (34), and the second limiting column (41) is inserted into the limiting holes.

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