A box girder concrete vibrating device

Abstract

The present application relates to the technical field of construction machinery, and discloses a box girder concrete vibrating device, which comprises a truss girder, a longitudinal walking mechanism arranged at the lower part of the truss girder, a crane frame, a vibrating motor arranged at the lower part of the crane frame, and a vibrating rod; the longitudinal walking mechanism can drive the vibrating device to longitudinally displace above the prefabricated box girder; the vibrating rod is an execution component for vibrating concrete; the crane frame is at least two, the vibrating motor is arranged at the lower part of the first crane frame, and the middle section of the vibrating rod is connected with the second crane frame; the output shaft of the vibrating motor is connected with one end of the vibrating rod; the crane frame is connected with the truss girder and can laterally displace below the truss girder. The present application has the beneficial effect that the working end length of the vibrating rod is automatically adjusted, thereby realizing automatic up-and-down pulling and inserting operation and efficiently vibrating the concrete in the horizontal plate and web plate of the prefabricated box girder.

Description

Technical Field

[0001] This invention belongs to the field of construction machinery technology, and relates to a concrete vibration device for box girders, specifically a concrete vibration device for precast box girders. Background Technology

[0002] my country's precast box girder technology for high-speed railways has matured significantly, boasting advantages such as high stability and economy, and has been widely applied in high-speed railway construction. The vibration of concrete for large precast box girders is a crucial process in construction, directly impacting the quality and service life of the concrete pouring.

[0003] Currently, the construction of large precast box girder concrete vibration still faces problems such as low mechanization, difficulty in controlling vibration quality, and high labor intensity for workers. Furthermore, no corresponding measures have been taken for flexible shaft vibrators with variable diameters, which can easily lead to the vibrator falling off. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a concrete vibration device for box girders, which can automatically adjust the working end length of the vibrator to comprehensively and efficiently vibrate the concrete in the horizontal slab and web of the precast box girder, thus meeting the construction requirements for precast box girder concrete pouring.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A concrete vibration device for box girders includes a truss beam, a longitudinal traveling mechanism disposed at the lower part of the truss beam, a crane frame, a vibration motor disposed at the lower part of the crane frame, and a vibrating rod. The longitudinal traveling mechanism can drive the vibration device to move longitudinally above the precast box girder. The vibrating rod is an actuator for vibrating the concrete. There are at least two crane frames. The vibration motor is disposed at the lower part of the first crane frame, and the middle section of the vibrating rod is connected to the second crane frame. The output shaft of the vibration motor is connected to one end of the vibrating rod, and the other end of the vibrating rod is a free end that passes through the lower part of the second crane frame and vibrates the concrete downward. The crane frame is connected to the truss beam and can move laterally under the truss beam. The first crane frame and the second crane frame are independently configured. The first crane frame drives the vibratory motor to move, and the movement of the second crane frame causes a change in the length of the working end of the vibratory rod that vibrates the concrete downwards. The lateral movements of the first and second crane frames can be asynchronous or even opposite. By adjusting the movements of the first and second crane frames, the length of the working end of the vibratory rod can be automatically adjusted, thereby achieving automatic up-and-down insertion and removal operations.

[0007] Furthermore, the truss beam includes several transversely arranged main beams, several longitudinally arranged secondary beams, and several transverse sliding rails arranged between two adjacent main beams; the crane frame is connected to the transverse sliding rails and can move laterally on the transverse sliding rails.

[0008] Furthermore, the truss beam also includes several racks disposed at the lower part of the transverse track; the crane frame includes a frame base plate, two frame side plates disposed on the frame base plate, several pairs of rollers correspondingly disposed on the upper inner sides of the two frame side plates, a gear shaft, and a positioning motor disposed on one side of the frame side plate; the output shaft of the positioning motor is connected to one end of the gear shaft, and the other end of the gear shaft is connected to the other side of the frame side plate; the gear on the gear shaft meshes with the rack at the lower part of the truss beam for transmission; the rollers are disposed on the transverse track, and the positioning motor drives the gear shaft to rotate, and the gear shaft is transmitted through gear and rack meshing, so that the crane frame can move laterally along the transverse track by means of the rollers. The crane frame can move laterally within the construction area through the positioning motor and gear and rack transmission; then, through the longitudinal travel mechanism, the entire vibrating device is driven to move longitudinally above the precast box girder, thus enabling the vibrating device of the present invention to vibrate the concrete in the entire construction area.

[0009] Furthermore, the crane frame also includes a bearing, and the other end of the gear shaft is connected to the side plate of the frame on the other side via the bearing. Preferably, the bearing is a deep groove ball bearing.

[0010] Furthermore, there are two pairs of rollers, which are respectively set at both ends of the side plate of the frame; the four rollers are symmetrically fixed in pairs between the two side plates of the frame by threaded connection.

[0011] Furthermore, the truss beam also includes a rack and pinion support, through which the rack and pinion are connected to the transverse track.

[0012] Furthermore, the main beam is connected by bolted lap joints of several track beams, allowing the number of track beams to be increased or decreased depending on the track gauge span. Several secondary beams are fixed above the main beam by threaded connections; several transverse tracks are fixed below the secondary beams by threaded connections; several rack fixing supports are fixed to the lower part of the transverse tracks by welding connections; and several racks are connected to the rack fixing supports by threaded connections.

[0013] Preferably, there are 2 main beams; 3 track beams; and 4 transverse tracks; the transverse tracks are monorail hoisting tracks; and the longitudinal tracks are box girder monorail hoisting tracks.

[0014] Furthermore, several support columns are installed between the side panels of the frame, with each end of the support column connected to one of the two side panels of the frame. The support columns are designed to improve the stability and rigidity of the crane frame.

[0015] Furthermore, the vibratory motor is installed at the bottom of the chassis base plate.

[0016] Furthermore, the longitudinal traveling mechanism includes a longitudinal traveling frame and a longitudinal traveling component disposed at the lower part of the longitudinal traveling frame. The longitudinal traveling frame includes an upper beam, a bottom beam, an inclined beam, and a supporting mechanism. One end of the inclined beam is connected to the upper beam, and the other end is connected to the bottom beam. The supporting mechanism is disposed on the upper beam and is used to connect with the main beam. The longitudinal traveling component includes wheels, which are connected to the longitudinal track on the precast box girder. The wheels drive the entire vibrating device to move on the longitudinal track through the wheel-rail connection, thereby realizing longitudinal movement within the vibrating working area. There are two sets of the longitudinal traveling mechanism, which are respectively connected to both ends of the truss beam.

[0017] Furthermore, the upper beam, bottom beam, and inclined beam are connected by welding; the supporting mechanism is fixedly installed on the upper part of the upper beam by welding and is connected to the main beam of the truss beam by thread.

[0018] Furthermore, the supporting mechanism is a connecting plate used to connect the truss beam and the longitudinal traveling frame.

[0019] Furthermore, the longitudinal travel assembly includes a drive wheel, a driven wheel, and a longitudinal movement motor with an output shaft connected to the drive wheel; the drive wheel and the driven wheel are located at the lower part of the bottom beam and are located within the longitudinal movement track.

[0020] Furthermore, the longitudinal travel assembly also includes a motor mounting bracket and wheel supports, with the driving wheel and the driven wheel respectively connected to the lower part of the bottom beam via the wheel supports; the motor mounting bracket is located on the side of the bottom beam and is used to mount the longitudinal travel motor.

[0021] Furthermore, the longitudinal traverse motor is fixedly installed below the motor mounting bracket via a threaded connection to provide power to the drive wheel; the wheel support is fixedly installed below the longitudinal travel frame via a welded connection; and the longitudinal traverse track is a monorail hoisting track at both ends of the precast box girder.

[0022] Furthermore, the vibratory tamping device of the present invention also includes a telescopic chain and at least one hanger mechanism. The telescopic chain is telescopic and hollow inside for placing the vibratory rod. The telescopic chain is located at the lower part of the hanger mechanism, and the upper part of the hanger mechanism is connected to the truss beam and can move laterally under the truss beam. The telescopic chain can move laterally under the truss beam through the hanger mechanism. The telescopic chain is located between two crane frames to prevent the vibratory rod from drooping excessively.

[0023] Furthermore, the lifting mechanism is a crane frame.

[0024] Further, the telescopic chain is a scissor telescopic chain, and the vibrating rod is a flexible shaft type high-frequency vibrating rod. The scissor telescopic chain is used to prevent the flexible shaft type vibrating rod from excessive overhang.

[0025] Further, one end of the telescopic chain is connected to the guiding mechanism, and the other end is fixedly connected to the lower part of a crane frame through bolts.

[0026] Further, the crane frame connected to the telescopic chain can remove the positioning motor, gear shaft and bearing.

[0027] Further, the vibrating device of the present invention further includes a guiding mechanism. The guiding mechanism includes a guiding motor, several pairs of roller groups, two oppositely arranged support plates and a clamping unit. The guiding mechanism is connected to the second crane frame; several of the roller groups are arranged in an arc shape and evenly distributed inside the two support plates. The clamping units are arranged in pairs and symmetrically arranged outside the two support plates; the roller group includes a driving guiding wheel and a driven guiding wheel arranged on the clamping unit; both ends of the driven guiding wheel are respectively connected to the clamping units on the corresponding support plates, and the output shaft of the guiding motor is connected to the driving guiding wheel to drive the driving guiding wheel to rotate; a gap for the vibrating rod to pass through is provided between the driving guiding wheel and the driven guiding wheel, and the gap can be adjusted by the clamping unit.

[0028] Further, the clamping unit includes a slider, a slider track, a spring and a guiding fixing plate. The lower part of the support plate is an arc-shaped plate, and the guiding fixing plates in a pair of clamping units are integrated; the slider track is arranged outside the support plate; the slider is arranged in the slider track and can slide up and down in the slider track; a chute is opened at the position of the support plate corresponding to the slider track, and both ends of the driven guiding wheel respectively pass through the chutes on the two support plates and are connected to the slider. One end of the spring is connected to the lower part of the slider, and the other end is connected to the upper part of the guiding fixing plate. The guiding fixing plate is respectively connected to a pair of slider tracks.

[0029] Further, the guiding fixing plate is connected to the slider track through bolts and nuts. By screwing the nuts, the distance between the guiding fixing plate and the slider track is adjusted, thereby affecting the deformation amount of the spring, so as to realize the displacement of the slider, and then带动 the position change of the driven guiding wheel, and finally achieve the effect of adjusting the gap between the driving guiding wheel and the driven guiding wheel.

[0030] The driven guiding wheel is used to cooperate with the driving guiding wheel to bend the flexible shaft type vibrating rod from a horizontal state to a vertical state. Through the setting of the spring, the clamping unit can automatically adjust the gap between the driving guiding wheel and the driven guiding wheel, and clamp the vibrating rod with different thicknesses in the axial direction between the driving guiding wheel and the driven guiding wheel.

[0031] Further, the slider track is "U"-shaped and welded on the outer side surface of the support plate.

[0032] Furthermore, connecting plates are provided on the two support plates, through which the guide mechanism is connected to the chassis base plate of the second crane frame.

[0033] Preferably, the roller assembly has 4 pairs, the guide motor has 4 motors, which are respectively connected to 4 active guide wheels, and the clamping unit has 4 pairs.

[0034] Furthermore, both the active and passive guide wheels are covered with a layer of rubber to provide sufficient friction for adjusting the working end length of the vibrator and for inserting and removing it.

[0035] The vibrator is the actuator for vibrating concrete. One end is connected to the output shaft of the vibrator motor, and the other end passes through the telescopic chain and guide mechanism in sequence, changing from a horizontal state to a vertical state, and performing up-and-down insertion and vibration operations on the concrete in the construction area.

[0036] Compared with the prior art, the present invention provides a concrete vibration device for box girders, which has the following beneficial effects:

[0037] (1) The vibrating device of the present invention can automatically adjust the working end length of the vibrating rod, thereby realizing automatic up and down insertion and removal operations, and efficiently vibrating the concrete in the horizontal plate and web of the precast box girder to meet the construction requirements of precast box girder concrete pouring.

[0038] (2) The vibrating device of the present invention realizes the fully automatic up and down insertion and removal operation of high frequency vibrating rod through the coordinated control of the crane frame and the vibrating rod turning component (guide mechanism). There is no limit to the depth of the vibrating rod descent, ensuring the quality of concrete vibration and effectively reducing the labor intensity and labor cost of workers.

[0039] (3) In the vibratory device of the present invention, the truss beam is provided with multiple transverse monorails, which, combined with the longitudinal guide rails provided at both ends of the precast box beam, can enable the vibratory device to vibrate the concrete throughout the construction area.

[0040] (4) The guide mechanism of the vibrating device of the present invention is equipped with an active guide wheel and a passive guide wheel, which not only guides the vibrating rod, but also guides the vibrating rod to make large-angle turns.

[0041] (5) The vibrating device of the present invention can be adapted to flexible shaft vibrating rods with variable diameter by means of the adjustable function of the clamping unit.

[0042] (6) The vibrating device of the present invention is particularly suitable for vibrating concrete of precast box girders for high-speed railways. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural diagram of the vibrating device of the present invention;

[0044] Figure 2 This is a schematic diagram of the truss beam system in this invention;

[0045] Figure 3 for Figure 2 A magnified structural diagram of A in the middle;

[0046] Figure 4 This is a schematic diagram of the longitudinal walking frame and longitudinal walking assembly in this invention;

[0047] Figure 5 This is a schematic diagram of the structure of the vibration unit in this invention;

[0048] Figure 6 This is a schematic diagram of the monorail crane frame in this invention;

[0049] Figure 7 This is a schematic diagram of the vibratory rod guiding mechanism in this invention.

[0050] The meanings of the reference numerals in the attached diagram are as follows: 1-truss beam; 1.1-main beam; 1.2-secondary beam; 1.3-transverse track; 1.4-rack; 1.5-rack fixing support; 2-longitudinal traveling frame; 2.1-upper beam; 2.2-bottom beam; 2.3-inclined beam; 2.4-supporting mechanism; 3-longitudinal traveling assembly; 3.1-driving wheel; 3.2-driven wheel; 3.3-longitudinal motor; 3.4-motor mounting bracket; 3.5-wheel support; 4-vibrator; 5-telescopic chain; 6-... - Crane frame; 6.1- Frame base plate; 6.2- Frame side plate; 6.3- Gear shaft; 6.4- Bearing; 6.5- Positioning motor; 6.6- Roller; 6.7- Vibrating motor; 7- Guide mechanism; 7.1- Support plate; 7.2- Active guide wheel; 7.3- Guide motor; 7.4- Clamping unit; 7.4.1- Passive guide wheel; 7.4.2- Slider; 7.4.3- Slider track; 7.4.4- Spring; 7.4.5- Guide fixing plate; 8- Longitudinal track. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0052] like Figures 1 to 7As shown, the vibratory compaction device proposed in this invention includes a truss beam 1, a longitudinal traveling mechanism disposed at the lower part of the truss beam 1, a crane frame 6, a vibratory motor 6.7 disposed at the lower part of the crane frame 6, and a vibratory rod 4; the longitudinal traveling mechanism can drive the vibratory compaction device to move longitudinally above the precast box beam; the vibratory rod 4 is the execution component for vibrating concrete; there are at least two crane frames 6, the vibratory motor 6.7 is disposed at the lower part of the first crane frame 6, and the middle section of the vibratory rod 4 is connected to the second crane frame 6; the output shaft of the vibratory motor 6.7 is connected to one end of the vibratory rod 4, and the other end of the vibratory rod 4 is a free end, which passes through the lower part of the second crane frame 6 and vibrates the concrete downward; the crane frame 6 is connected to the truss beam 1 and can move laterally under the truss beam 1, and the first crane frame 6 and the second crane frame 6 are set independently of each other. The first crane frame 6 drives the vibrating motor 6.7 to move, and the displacement of the second crane frame 6 will cause the working end length of the vibrating rod 4 to vibrate the concrete downwards to change. The lateral displacement of the first crane frame 6 and the second crane frame 6 can be asynchronous or even in opposite directions. By adjusting the displacement of the first crane frame 6 and the second crane frame 6, the working end length of the vibrating rod 4 can be automatically adjusted, thereby realizing automatic up and down insertion and removal operations.

[0053] In one specific implementation of this embodiment, such as Figure 2 and Figure 3 As shown, the truss beam 1 includes several transversely arranged main beams 1.1, several longitudinally arranged secondary beams 1.2, and several transverse tracks 1.3 arranged between two adjacent main beams 1.1; the crane frame 6 is connected to the transverse tracks 1.3 and can move laterally on the transverse tracks 1.3.

[0054] In one specific implementation of this embodiment, such as Figure 2 , Figure 3 as well as Figure 6As shown, the truss beam 1 also includes several racks 1.4 disposed at the lower part of the transverse track 1.3; the crane frame 6 includes a frame base plate 6.1, two frame side plates 6.2 disposed on the frame base plate 6.1, several pairs of rollers 6.6 disposed on the upper inner side of the two frame side plates 6.2, a gear shaft 6.3, and a positioning motor 6.5 disposed on one side frame side plate 6.2; the output shaft of the positioning motor 6.5 is connected to one end of the gear shaft 6.3, and the other end of the gear shaft 6.3 is connected to the other side frame side plate 6.2; the gear on the gear shaft 6.3 meshes with the rack 1.4 at the lower part of the truss beam 1 for transmission; the rollers 6.6 are disposed on the transverse track 1.3, the positioning motor 6.5 drives the gear shaft 6.3 to rotate, and the gear shaft 6.3 is driven by the gear and rack 1.4 for transmission, so that the crane frame 6 can move laterally along the transverse track 1.3 by means of the rollers 6.6. The crane frame 6 can move laterally within the construction area via a positioning motor 6.5 and a gear and rack transmission; then, through a longitudinal traveling mechanism, it drives the entire vibrating device to move longitudinally above the precast box girder. In this way, the vibrating device of the present invention can vibrate the concrete in the entire construction area.

[0055] In one specific embodiment of this invention, the crane frame 6 further includes a bearing 6.4, and the other end of the gear shaft 6.3 is connected to the side plate 6.2 of the frame on the other side via the bearing 6.4. Preferably, the bearing 6.4 is a deep groove ball bearing.

[0056] In one specific embodiment of this example, there are two pairs of rollers 6.6, which are respectively disposed at both ends of the side plate 6.2 of the frame; the four rollers 6.6 are symmetrically fixedly installed between the two side plates 6.2 of the frame by threaded connection.

[0057] In one specific embodiment of this example, the truss beam 1 further includes a rack fixing support 1.5, and the rack 1.4 is connected to the transverse track 1.3 through the rack fixing support 1.5.

[0058] In one specific embodiment of this invention, the main beam 1.1 is connected by bolted lap joints of several track beams, allowing the number of track beams to be increased or decreased according to the track gauge span. Several secondary beams 1.2 are fixed above the main beam 1.1 by threaded connections; several transverse tracks 1.3 are fixed below the secondary beams 1.2 by threaded connections; several rack fixing supports 1.5 are fixed to the lower part of the transverse tracks 1.3 by welding connections; and several racks 1.4 are threadedly connected to the rack fixing supports 1.5.

[0059] Preferably, there are 1.12 main beams; 3 track beams; 1.34 transverse tracks; 1.3 transverse track is a monorail hoisting track; and 8 longitudinal tracks are box girder monorail hoisting tracks.

[0060] In one specific embodiment of this example, a plurality of support columns are also provided between the side plates 6.2 of the frame, and the two ends of the support columns are respectively connected to the two side plates 6.2 of the frame. The support columns are provided to improve the stability and rigidity of the crane frame 6.

[0061] In one specific embodiment of this example, the vibratory motor 6.7 is installed at the bottom of the chassis base plate 6.1.

[0062] In one specific implementation of this embodiment, such as Figure 4 As shown, the longitudinal traveling mechanism includes a longitudinal traveling frame 2 and a longitudinal traveling component 3 disposed at the lower part of the longitudinal traveling frame 2. The longitudinal traveling frame 2 includes an upper beam 2.1, a bottom beam 2.2, an inclined beam 2.3, and a supporting mechanism 2.4. One end of the inclined beam 2.3 is connected to the upper beam 2.1, and the other end is connected to the bottom beam 2.2. The supporting mechanism 2.4 is disposed on the upper beam 2.1 and is used to connect with the main beam 1.1. The longitudinal traveling component 3 includes wheels, which are connected to the longitudinal moving track 8 on the precast box girder. The wheels drive the entire vibrating device to move on the longitudinal moving track 8 through the wheel-rail connection, realizing longitudinal movement within the vibrating working area. There are two sets of longitudinal traveling mechanisms, which are respectively connected to both ends of the truss beam 1.

[0063] In one specific embodiment of this example, the upper beam 2.1, the bottom beam 2.2, and the inclined beam 2.3 are connected by welding; the supporting mechanism 2.4 is fixedly installed on the upper part of the upper beam 2.1 by welding and is connected to the main beam 1.1 of the truss beam 1 by thread.

[0064] In one specific embodiment of this example, the supporting mechanism 2.4 is a connecting plate used to connect the truss beam 1 and the longitudinal traveling frame 2.

[0065] In one specific embodiment of this example, the longitudinal travel assembly 3 includes a drive wheel 3.1, a driven wheel 3.2, and a longitudinal motor 3.3 whose output shaft is connected to the drive wheel 3.1; the drive wheel 3.1 and the driven wheel 3.2 are located at the lower part of the bottom beam 2.2 and are located within the longitudinal track 8.

[0066] In one specific embodiment of this example, the longitudinal travel assembly 3 further includes a motor mounting bracket 3.4 and a wheel support 3.5. The driving wheel 3.1 and the driven wheel 3.2 are respectively connected to the lower part of the bottom beam 2.2 through the wheel support 3.5. The motor mounting bracket 3.4 is disposed on the side of the bottom beam 2.2 and is used to install the longitudinal travel motor 3.3.

[0067] In one specific embodiment of this example, the longitudinal traverse motor 3.3 is fixedly installed below the motor mounting bracket 3.4 by a threaded connection to provide power to the drive wheel 3.1; the wheel support 3.5 is fixedly installed below the longitudinal travel frame 2 by a welded connection; the longitudinal traverse track 8 is a monorail hoisting track at both ends of the precast box girder. Example 2

[0068] The difference between Example 2 and Example 1 is that the vibrating device of the present invention further includes a telescopic chain 5, which can prevent the vibrating rod 4 from hanging excessively.

[0069] like Figure 1 and Figure 5 As shown, the vibrating device of the present invention also includes a telescopic chain 5 and at least one hanger mechanism. The telescopic chain 5 is telescopic and hollow inside for placing the vibrating rod 4. The telescopic chain 5 is located at the lower part of the hanger mechanism, and the upper part of the hanger mechanism is connected to the truss beam 1 and can move laterally under the truss beam 1. The telescopic chain 5 can move laterally under the truss beam 1 through the hanger mechanism. The telescopic chain 5 is located between two crane frames 6 to prevent the vibrating rod 4 from hanging excessively.

[0070] In one specific embodiment of this example, the lifting mechanism is a crane frame 6, which may not be equipped with a positioning motor 6.5, a gear shaft 6.3, and a bearing 6.4.

[0071] In one specific embodiment of this example, the telescopic chain 5 is a scissor-type telescopic chain 5, and the vibrator 4 is a flexible shaft high-frequency vibrator 4. The scissor-type telescopic chain 5 is used to prevent the flexible shaft vibrator 4 from excessively drooping.

[0072] In one specific embodiment of this example, one end of the telescopic chain 5 is connected to the guide mechanism 7, and the other end is fixed to the bottom of a crane frame 6 by bolts. Example 3

[0073] The difference between Example 3 and Example 2 is that the vibrating device of the present invention also includes a guiding mechanism 7. The guiding mechanism 7 not only guides the vibrating rod 4, but is also applicable to vibrating rods 4 with varying diameters, especially flexible shaft vibrating rods 4 with varying thicknesses in the axial direction. The guiding device provides a large-angle turning guide for the flexible shaft vibrating rod 4.

[0074] like Figure 1 , Figure 5 as well as Figure 7As shown, the guiding mechanism 7 includes a guiding motor 7.3, several pairs of roller sets, two opposing support plates 7.1, and a clamping unit 7.4. The guiding mechanism 7 is connected to the second crane frame 6. The several roller sets are evenly distributed in an arc shape on the inner side of the two support plates 7.1, and the clamping units 7.4 are arranged in pairs, symmetrically arranged on the outer side of the two support plates 7.1. The roller sets include active guide wheels 7.2 and passive guide wheels 7.4.1 arranged on the clamping unit 7.4. The two ends of the passive guide wheels 7.4.1 are respectively connected to the clamping unit 7.4 on the corresponding support plate 7.1. The output shaft of the guiding motor 7.3 is connected to the active guide wheel 7.2, driving the active guide wheel 7.2 to rotate. A gap is provided between the active guide wheel 7.2 and the passive guide wheel 7.4.1 for the vibrator 4 to pass through, and the gap can be adjusted by the clamping unit 7.4.

[0075] In one specific embodiment of this example, the clamping unit 7.4 includes a slider 7.4.2, a slider 7.4.2 track, a spring 7.4.4, and a guide fixing plate 7.4.5. The lower part of the support plate 7.1 is an arc-shaped plate, and the guide fixing plates 7.4.5 of the pair of clamping units 7.4 are integrated into one unit. The slider 7.4.2 track is located on the outside of the support plate 7.1. The slider 7.4.2 is located inside the slider 7.4.2 track and can slide up and down inside the slider 7.4.2 track. A groove is provided at the support plate 7.1 corresponding to the slider 7.4.2 track. The two ends of the passive guide wheel 7.4.1 pass through the grooves on the two support plates 7.1 and are connected to the slider 7.4.2. One end of the spring 7.4.4 is connected to the lower part of the slider 7.4.2, and the other end is connected to the upper part of the guide fixing plate 7.4.5. The guide fixing plate 7.4.5 is connected to the pair of slider 7.4.2 tracks.

[0076] In one specific embodiment of this example, the guide fixing plate 7.4.5 is connected to the slider rail 7.4.3 by bolts and nuts. By tightening the nuts, the distance between the guide fixing plate 7.4.5 and the slider rail 7.4.3 is adjusted, which in turn affects the deformation of the spring 7.4.4, thereby realizing the displacement of the slider 7.4.2, which in turn drives the position of the passive guide wheel 7.4.1 to change, and finally achieves the function of adjusting the gap between the active guide wheel 7.2 and the passive guide wheel 7.4.1.

[0077] The passive guide wheel 7.4.1 is used in conjunction with the active guide wheel 7.2 to bend the flexible shaft vibrator 4 from a horizontal state to a vertical state. The clamping unit 7.4, through the setting of the spring 7.4.4, can automatically adjust the gap between the active guide wheel 7.2 and the passive guide wheel 7.4.1, clamping the vibrator 4 of different thicknesses in the axial direction between the active guide wheel 7.2 and the passive guide wheel 7.4.1. That is, it uses the compressibility and rebound performance of the spring to automatically adapt to the vibrator of different thicknesses in the axial direction.

[0078] In a specific implementation manner of this embodiment, the track of the slider 7.4.2 is "U"-shaped and is welded to the outer side surface of the support plate 7.1.

[0079] In a specific implementation manner of this embodiment, connecting plates are provided on two support plates 7.1, and the guiding mechanism 7 is connected to the frame bottom plate 6.1 of the second crane frame 6 through these connecting plates.

[0080] Preferably, there are 4 pairs of roller groups and 4 guiding motors 7.3. The rotational speeds and directions of the 4 guiding motors are synchronized to ensure the consistency of the action of the guiding mechanism; the 4 guiding motors 7.3 are respectively connected to 4 active guiding wheels 7.2, and 4 pairs of clamping units 7.4 are provided correspondingly.

[0081] In a specific implementation manner of this embodiment, a layer of rubber is covered on the outer surfaces of both the active guiding wheel 7.2 and the passive guiding wheel 7.4.1, providing sufficient friction for the adjustment of the working end length of the vibrating rod 4 and the up-and-down insertion operation.

[0082] The vibrating rod 4 is an executing component for vibrating concrete. One end of it is connected to the output shaft of the vibrating motor 6.7, and the other side sequentially passes through the telescopic chain 5 and the guiding mechanism 7, converting from a horizontal state to a vertical state to perform up-and-down insertion vibrating operations on the concrete in the construction area.

[0083] The first crane frame 6 drives the vibrating motor 6.7 to displace, and the second crane frame 6 drives the guiding mechanism 7 to displace. The displacement of the first crane frame 6 relative to the second crane frame 6 will cause a change in the length of the working end of the vibrating rod 4 for vibrating the concrete downward. The displacement end point of the second crane frame 6 serves to locate the construction area to be constructed; the lateral displacements of the first crane frame 6 and the second crane frame 6 can be divided into the following two types: one is when the vibrating rod 4 is not in the working state, the first crane frame 6 and the second crane frame 6 displace synchronously to locate the construction area where concrete vibration is required. When the construction area is located, the two crane frames stop displacing; the other is after the construction area for concrete vibration is located, the second crane frame 6 remains stationary, and the first crane frame 6 moves relative to the second crane frame 6 to adjust the length of the working end of the vibrating rod 4 to vibrate the concrete at different depths in this area. The operator can achieve the displacement, displacement amount, and displacement direction of the first crane frame 6 and the second crane frame 6 through the start, stop, and steering of the positioning motor 6.5, can automatically locate the construction area for concrete vibration and automatically adjust the length of the working end of the vibrating rod 4, and further realize the automatic up-and-down insertion operation.

[0084] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete vibration device for box girders, characterized in that: The system includes a truss beam, a longitudinal traveling mechanism located at the lower part of the truss beam, a crane frame, a vibrating motor located at the lower part of the crane frame, and a vibrating rod. The longitudinal traveling mechanism can drive the vibrating device to move longitudinally above the precast box beam. The vibrating rod is the executing component for vibrating concrete. The crane frame is connected to the truss beam and can move laterally under the truss beam. There are at least two crane frames. The vibrating motor is located at the lower part of the first crane frame, and the middle section of the vibrating rod is connected to the second crane frame. The output shaft of the vibrating motor is connected to one end of the vibrating rod, and the other end of the vibrating rod is a free end that passes through the lower part of the second crane frame and vibrates the concrete downwards. The first crane frame and the second crane frame are set up independently of each other. It also includes a guiding mechanism, which comprises a guiding motor, several pairs of roller sets, two opposing support plates, and a clamping unit. The guiding mechanism is connected to a second crane frame. The roller sets are evenly distributed in an arc shape on the inner side of the two support plates, and the clamping units are arranged in pairs, symmetrically arranged on the outer side of the two support plates. Each roller set includes an active guide wheel and a passive guide wheel mounted on the clamping unit. The two ends of the passive guide wheel are respectively connected to the clamping unit on the corresponding support plate, and the output shaft of the guiding motor is connected to the active guide wheel. A gap is provided between the active guide wheel and the passive guide wheel for the vibrator to pass through, and the gap can be adjusted by the clamping unit. The clamping unit includes a slider, a slider track, a spring, and a guide fixing plate. The lower part of the support plate is an arc-shaped plate, and the guide fixing plates of the pair of clamping units are integrated into one unit. The slider track is located on the outside of the support plate. The slider is located inside the slider track and can slide up and down inside the slider track. A groove is opened at the support plate corresponding to the slider track. The two ends of the passive guide wheel pass through the grooves on the two support plates and are connected to the slider. One end of the spring is connected to the lower part of the slider, and the other end is connected to the upper part of the guide fixing plate. The guide fixing plate is connected to a pair of slider tracks.

2. The concrete vibration device for box girders according to claim 1, characterized in that: The truss beam includes several transversely arranged main beams, several longitudinally arranged secondary beams, and several transverse sliding rails arranged between adjacent main beams; the crane frame is connected to the transverse sliding rails and can move laterally on the transverse sliding rails.

3. The concrete vibration device for box girders according to claim 2, characterized in that: The truss beam also includes several racks disposed at the lower part of the transverse track; the crane frame includes a frame base plate, two frame side plates disposed on the frame base plate, several pairs of rollers correspondingly disposed on the inner sides of the two frame side plates, a gear shaft, and a positioning motor disposed on one side of the frame side plate; the output shaft of the positioning motor is connected to one end of the gear shaft, and the other end of the gear shaft is connected to the other side of the frame side plate; the gear on the gear shaft meshes with the rack at the lower part of the truss beam for transmission; the rollers are disposed on the transverse track, the positioning motor drives the gear shaft to rotate, and the gear shaft is transmitted through the meshing of the gear and rack, so that the crane frame can move laterally along the transverse track by means of the rollers.

4. The concrete vibration device for box girders according to claim 3, characterized in that: The vibratory motor is installed at the bottom of the chassis base plate.

5. The concrete vibration device for box girders according to claim 1, characterized in that: The longitudinal traveling mechanism includes a longitudinal traveling frame and a longitudinal traveling component disposed at the lower part of the longitudinal traveling frame. The longitudinal traveling frame includes an upper beam, a bottom beam, an inclined beam, and a support mechanism. One end of the inclined beam is connected to the upper beam, and the other end is connected to the bottom beam. The support mechanism is disposed on the upper beam and is used to connect with the main beam. The longitudinal traveling component includes wheels, which are connected to the longitudinal track on the precast box girder. The wheels drive the entire vibrating device to move on the longitudinal track through the wheel-rail connection. There are two sets of the longitudinal traveling mechanism, which are respectively connected to both ends of the truss beam.

6. A concrete vibration device for box girders according to claim 5, characterized in that: The longitudinal travel assembly includes a drive wheel, a driven wheel, and a longitudinal motor with an output shaft connected to the drive wheel; the drive wheel and the driven wheel are located at the lower part of the bottom beam and are located within the longitudinal track.

7. The concrete vibration device for box girders according to claim 1, characterized in that: It also includes a telescopic chain and at least one hanger mechanism. The telescopic chain is telescopic and hollow inside for holding the vibrator. The telescopic chain is located at the lower part of the hanger mechanism, and the upper part of the hanger mechanism is connected to the truss beam and can move laterally under the truss beam. The telescopic chain can move laterally under the truss beam through the hanger mechanism. The telescopic chain is located between two crane frames to prevent the vibrator from drooping excessively.

8. A concrete vibration device for box girders according to claim 7, characterized in that: The lifting mechanism is a crane frame.

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