Gantry concrete pouring machine for prefabricated box beam and construction method thereof

Abstract

The present invention discloses a gantry concrete pouring machine for prefabricated box beams and a construction method thereof, comprising: a gantry having two pouring chambers, and a loading station is formed on one side of the two pouring chambers away from each other; a walking and lifting assembly is arranged on the gantry for controlling the movement of the gantry; a loading assembly is arranged in the loading station; a material distribution assembly is arranged in the pouring chamber, and moves along a length direction parallel to the prefabricated box beam construction table, and can be moved to the loading station; a vibrating and smoothing assembly is relatively fixed with the material distribution assembly, and is used to vibrate and smooth the materials on the prefabricated box beam construction table in turn. The present invention relates to the technical field of casting and forming of prefabricated box beams. Through the above arrangement, the mechanization degree of forming of prefabricated box beams is effectively improved, so as to improve the forming rate and forming quality of prefabricated box beams, and correspondingly reduce the labor intensity of human labor.

Description

Technical Field

[0001] The invention belongs to the field of prefabricated box beam forming, relates to a casting technology, and specifically is a gantry concrete casting machine for a prefabricated box beam and a construction method thereof. Background Art

[0002] At present, the production of prefabricated box girders is generally completed by the pumping and pouring process. During the construction process, multiple operators are required to assist the pump pipe in conveying and pouring, which is labor-intensive. In addition, during the concrete transportation process, pipe blockage and pipe bursting often occur due to unstable performance and quality of admixtures, which in turn affects the overall production rate of the prefabricated box girders.

[0003] Therefore, a gantry concrete pouring machine for prefabricated box beams and a construction method thereof are needed to solve the above problems. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a gantry concrete pouring machine for prefabricated box beams and a construction method thereof, so as to improve the mechanization degree of the prefabricated box beam forming, thereby improving the forming rate and forming quality of the prefabricated box beam, and correspondingly reducing the labor intensity of manpower. The present invention sets a feeding assembly, a material distribution assembly, and a vibrating and smoothing assembly, so that when the gantry wraps the prefabricated box beam construction table, the feeding assembly, the material distribution assembly, and the vibrating and smoothing assembly can be used to sequentially complete the feeding, material distribution, and vibrating and smoothing processes, thereby completing the forming of the prefabricated box beam, and by setting a walking and lifting assembly, when the prefabricated box beam is formed, the walking and lifting assembly can drive the gantry to turn to a fixed point and separate from the prefabricated box beam construction table to move to another prefabricated box beam construction table for construction, so that the mechanization degree of the prefabricated box beam forming can be effectively improved, so as to improve the forming rate and forming quality of the prefabricated box beam, and correspondingly reduce the labor intensity of manpower.

[0005] To achieve the above object, a first aspect of the present invention provides a gantry concrete pouring machine for prefabricated box beams, comprising:

[0006] The gantry has two casting chambers, and a loading station is formed on one side of the two casting chambers away from each other;

[0007] A walking and lifting assembly is arranged on the gantry and is used to control the movement of the gantry to wrap the prefabricated box girder construction platform or to separate from the prefabricated box girder construction platform at a fixed point;

[0008] A loading assembly is arranged in the loading station, and is used to receive materials provided by the concrete mixer truck and complete the output of the materials;

[0009] A material distribution assembly is arranged in the casting chamber and moves along a length direction parallel to the prefabricated box girder construction table surface, and can be moved to the loading station to receive the material output by the loading assembly and evenly pour the material on the prefabricated box girder construction table surface;

[0010] The vibrating and smoothing assembly is relatively fixed to the material distribution assembly and is used to vibrate and smooth the materials on the construction surface of the prefabricated box beam in sequence.

[0011] Furthermore, the gantry has two frames with casting chambers formed inside, and the two frames are fixedly connected;

[0012] Support parts are arranged on both sides of the lower surfaces of the ends of the two frames that are away from each other;

[0013] The walking and lifting assembly is installed on the supporting part;

[0014] The walking and lifting assembly includes a support mechanism, a support plate and a roller module;

[0015] The cylinder body of the support mechanism is movably connected to the support part, the cylinder rod of the support mechanism is movably connected to the support plate, and the support plate is used to abut against the ground for support;

[0016] The roller module is sleeved and fixed on the outer wall of the cylinder body of the support mechanism, so that the roller module is separated from the ground, and when the support mechanism rotates with the support plate as a fulcrum, the roller module can be driven to rotate synchronously.

[0017] Furthermore, auxiliary support frames are provided on the lower surfaces of the ends of the two frames that are close to each other;

[0018] The auxiliary support frame includes an auxiliary support rod, an electric retractable rod and a telescopic support foot;

[0019] The auxiliary support rod is hinged to the frame body;

[0020] One end of the electric retractable rod is hinged to the frame body, and the other end is hinged to the outer wall of the auxiliary support rod, so as to control the auxiliary support rod to deflect in a direction close to or away from the ground;

[0021] The telescopic support foot is arranged at the end of the auxiliary support rod and is used for abutting against the ground for support.

[0022] Furthermore, a positioning frame is fixedly installed on the upper surface of one end of the two frames away from each other, so as to form the loading station;

[0023] The feeding assembly includes a lifting mechanism and a feeding bin;

[0024] The lifting mechanism is arranged in the positioning frame and includes a lifting sprocket connected to the upper bin;

[0025] The loading bin has an open state and a closed state, which are used for discharging and storing materials respectively;

[0026] Wherein, when the upper material bin is pulled to the highest point by the lifting mechanism, the material distribution assembly can move to just below the upper material bin.

[0027] Furthermore, the material distribution assembly includes a material receiving bin and a material discharging pipe;

[0028] The receiving bin is arranged on the frame and moves along the length direction parallel to the construction platform of the prefabricated box beam to receive the materials output from the loading bin;

[0029] The discharge pipes are arranged in a row at equal intervals at the bottom of the receiving bin, and a discharge valve is provided at the connection between the discharge pipes and the receiving bin.

[0030] Furthermore, the material distribution assembly also includes a material pushing trolley and a stirring trolley;

[0031] The mixing trolleys are provided with two, and both are slidably installed in the material receiving bin;

[0032] The mixing trolley is also slidably mounted inside the material receiving bin and is located between the two material pushing trolleys;

[0033] The mixing trolley has a bidirectional spiral mixing blade which extends into the interior of the material receiving bin and can rotate around the moving direction of the mixing trolley.

[0034] Furthermore, the material receiving bin, the material pushing trolley and the mixing trolley are all provided with travel motors for relative sliding;

[0035] Among them, the moving directions of the pushing trolley and the mixing trolley are perpendicular to the moving direction of the material receiving bin.

[0036] Furthermore, the vibrating and smoothing assembly includes a plurality of vibrating plates arranged along the length direction of the receiving bin and a plurality of smoothing rollers of different shapes;

[0037] The vibrating plate and the bottom wall of the material receiving bin, as well as the smoothing roller and the bottom wall of the material receiving bin, are connected via independent lifting devices;

[0038] The vibrating plate, the discharging pipe and the smoothing roller are arranged in sequence along the material conveying direction of the receiving bin.

[0039] Furthermore, a closed protective shed is provided on the top of the gantry;

[0040] A constant temperature control system and a cleaning system are installed in the space formed between the closed protection shed and the gantry;

[0041] A plurality of fixed operating tables are arranged on the gantry to monitor the operating conditions of the walking and lifting assembly, the feeding assembly, the material distribution assembly and the vibrating and smoothing assembly respectively.

[0042] On the other hand, the present invention further proposes a construction method of a gantry concrete pouring machine for a prefabricated box beam, using the gantry concrete pouring machine for a prefabricated box beam described in any one of the above embodiments, specifically comprising the following steps:

[0043] S1. Drive the gantry to move by the walking jacking assembly so that the gantry wraps the prefabricated box girder construction table;

[0044] S2. Unload the materials into the loading assembly through a concrete mixer truck;

[0045] S3, moving the material distribution assembly to the loading station, and driving the loading assembly to unload materials, and putting the materials into the material distribution assembly;

[0046] S4, driving the material distribution assembly to move, and pouring the material evenly on the prefabricated box girder construction table during the movement;

[0047] S5. When the material pouring is completed and the prefabricated box beam is formed on the prefabricated box beam construction table, the material distribution assembly is continuously driven to move in a reciprocating manner to complete the vibration and smoothing of the prefabricated box beam in sequence;

[0048] S6. After the prefabricated box beam is smoothed, the beam surface of the prefabricated box beam is maintained;

[0049] S7, drive the walking and lifting assembly to move the gantry to another box beam construction platform in a fixed-point direction to cast and form the next prefabricated box beam.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] By setting up the loading assembly, the material distribution assembly and the vibrating and smoothing assembly, when the prefabricated box beam needs to be cast and formed, the gantry only needs to be moved by the walking and lifting assembly and wrapped around the prefabricated box beam construction table, and then the loading process is completed with the help of the loading assembly, and the material connection and material distribution process are completed by moving the material distribution assembly, and finally the prefabricated box beam surface is smoothed by the vibrating and smoothing assembly to complete the forming operation of the prefabricated box beam. In addition, when the prefabricated box beam is formed, the gantry can be separated from the prefabricated box beam construction table by the walking and lifting assembly, so as to be quickly moved to another prefabricated box beam construction table for construction, so that the mechanization degree of the prefabricated box beam forming can be effectively improved, and there is no need for the operator to take the pump pipe for auxiliary conveying and pouring, which effectively reduces the labor intensity and correspondingly improves the construction speed.

[0052] Among them, when the material distribution assembly is moving the material, the loading assembly can perform the loading action synchronously, so that the material distribution assembly can quickly supply materials during the reciprocating movement in the casting chamber, shortening the time required for loading and further improving the construction speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 It is a structural schematic diagram of a gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0055] Figure 2 It is a schematic diagram of the internal structure of a gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0056] Figure 3 A schematic diagram of the internal structure of a gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention from another perspective;

[0057] Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle;

[0058] Figure 5 It is a schematic structural diagram of an upper bin in a gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0059] Figure 6 It is a structural schematic diagram of a walking and lifting assembly in a gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0060] Figure 7 It is a schematic diagram of the local structure of the auxiliary support frame in the gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0061] Figure 8 It is a structural schematic diagram of a material distribution assembly in a gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0062] Fig. 9 It is a structural schematic diagram of another viewing angle of the material distribution assembly in the gantry concrete pouring machine for prefabricated box beams in one embodiment of the present invention;

[0063] Fig.10 It is a bottom view of a vibrating and leveling assembly installed on a material distribution assembly in a gantry concrete pouring machine for a prefabricated box girder in one embodiment of the present invention;

[0064] Fig.11 The present invention is a flow chart of a construction method of a gantry concrete pouring machine for prefabricated box girders in another embodiment of the present invention.

[0065] Figure Number:

[0066] 1. Gantry; 11. Frame; 12. Support part; 13. Auxiliary support frame; 131. Auxiliary support rod; 132. Electric retractable rod; 133. Telescopic support leg; 2. Traveling and lifting assembly; 21. Support mechanism; 22. Support plate; 23. Roller module; 3. Loading assembly; 31. Lifting mechanism; 32. Loading bin; 4. Material distribution assembly; 41. Receiving bin; 42. Discharging pipe; 43. Material pushing trolley; 44. Mixing trolley; 441. Bidirectional spiral mixing blade; 5. Vibrating and smoothing assembly; 51. Vibrating plate; 52. Smoothing roller; 6. Positioning frame; 7. Enclosed protective shed; 8. Fixed operating table. DETAILED DESCRIPTION

[0067] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] Embodiment 1

[0069] See also Figures 1 to 4 As shown, the first embodiment of the present invention provides a gantry concrete pouring machine for prefabricated box beams, comprising:

[0070] The gantry 1 has two casting chambers, and a loading station is formed on one side of the two casting chambers away from each other. When the gantry 1 is placed on the construction table of the prefabricated box beam, casting can be performed through the internal device to complete the forming of the prefabricated box beam.

[0071] Among them, the gantry 1 is provided with two casting chambers, so that two groups of prefabricated box girders can be constructed at the same time, shortening the construction time and improving the construction speed.

[0072] The walking jacking assembly 2 is arranged on the gantry 1 and is used to control the movement of the gantry 1 to wrap the prefabricated box girder construction platform or separate it from the prefabricated box girder construction platform by fixed-point turning. That is, the walking jacking assembly 2 drives the gantry 1 to move to a specified position (such as the prefabricated box girder construction platform) and keeps it fixed, and can complete the rapid separation of the gantry 1 from the prefabricated box girder construction platform by fixed-point turning, shortening the time required for transfer, and accordingly, can effectively shorten the overall construction period and improve the processing rate.

[0073] It should be particularly noted that after the walking and lifting assembly 2 moves the gantry 1 to the specified position, it can also adjust the height of each corner position of the gantry 1, so that the subsequent construction assemblies (such as the loading assembly 3, the material distribution assembly 4 and the vibrating and smoothing assembly 5) are flush with the prefabricated box girder construction table surface, thereby ensuring the molding effect of the prefabricated box girder after construction.

[0074] The feeding assembly 3 is arranged in the feeding station, and is used to receive the materials provided by the concrete mixer truck and complete the output of the materials, that is, to supply the materials when the subsequent material distribution assembly 4 is in operation.

[0075] The material distribution assembly 4 is arranged in the casting chamber and moves along the length direction parallel to the prefabricated box girder construction table surface, and can be moved to the loading station, for receiving the material output by the loading assembly 3 and pouring the material evenly on the prefabricated box girder construction table surface, that is, the material distribution assembly 4 is used to receive the material in the loading assembly 3, and complete the output of the material by moving and feeding, so that the material can be evenly poured on the prefabricated box girder construction table surface.

[0076] The vibrating and smoothing assembly 5 is relatively fixed to the material distribution assembly 4, and is used to vibrate and smooth the materials on the construction surface of the prefabricated box girder in turn. That is, after the material distribution assembly 4 completes the output of the materials, the vibrating and smoothing assembly 5 is used to vibrate and smooth the cast prefabricated box girder to prevent local concrete from solidifying and affecting the forming effect of the prefabricated box girder, and to ensure the flatness of the surface of the prefabricated box girder by smoothing.

[0077] It should be noted that the loading assembly 3, the material distribution assembly 4 and the vibrating and smoothing assembly 5 are each provided with two groups, and are symmetrically arranged in two casting chambers to synchronously complete the construction and forming of two prefabricated box girders, thereby achieving the purpose of improving the construction speed.

[0078] This device is provided with a feeding assembly 3, a material distribution assembly 4 and a vibrating and smoothing assembly 5, so that when the prefabricated box beam needs to be cast and formed, the gantry 1 only needs to be moved and wrapped around the prefabricated box beam construction table through the walking and lifting assembly 2, and then the feeding process is completed with the help of the feeding assembly 3, and the material connection and material distribution processes are completed by moving the material distribution assembly 4, and finally the prefabricated box beam surface is smoothed by the vibrating and smoothing assembly 5 to complete the forming operation of the prefabricated box beam. In addition, when the prefabricated box beam is formed, the gantry 1 can be separated from the prefabricated box beam construction table by a fixed point turning with the help of the walking and lifting assembly 2, so as to be quickly moved to another prefabricated box beam construction table for construction, so that the mechanization degree of the prefabricated box beam forming can be effectively improved, and there is no need for the operator to take the pump pipe for auxiliary conveying and casting, which effectively reduces the labor intensity and correspondingly improves the construction speed.

[0079] Among them, when the material distribution assembly 4 is moving the material, the loading assembly 3 can perform the loading action synchronously, so that the material distribution assembly 4 can quickly supply materials during the reciprocating movement in the casting chamber, shortening the time required for loading and further improving the construction speed.

[0080] In this embodiment, the gantry 1 is further defined to better form a casting chamber and facilitate movement.

[0081] Specifically, the gantry 1 has two frames 11 with casting chambers formed inside, and the two frames 11 are fixedly connected.

[0082] Support parts 12 are provided on both sides of the lower surfaces of the ends of the two frames 11 that are away from each other, and the walking and lifting assembly 2 is installed on the support parts 12 .

[0083] like Figure 6 As shown, in this embodiment, a specific walking and lifting assembly 2 is also provided to drive the gantry 1 to move so as to complete the wrapping or separation of the prefabricated box beam construction platform.

[0084] Specifically, the traveling and lifting assembly 2 includes a supporting mechanism 21 , a supporting plate 22 and a roller module 23 .

[0085] The cylinder body of the support mechanism 21 is movably connected to the support portion 12 , and the cylinder rod of the support mechanism 21 is movably connected to the support plate 22 . The support plate 22 is used for supporting against the ground.

[0086] Specifically, the bottom end of the support mechanism 21 is connected to the support plate 22 via a ball (not numbered in the figure), so that the support mechanism 21 can rotate independently relative to the support plate 22, which is convenient for steering operation.

[0087] The roller module 23 is sleeved and fixed on the outer wall of the cylinder body of the support mechanism 21, so that the roller module 23 is separated from the ground, and when the support mechanism 21 rotates with the support plate 22 as a fulcrum, it can drive the roller module 23 to rotate synchronously.

[0088] It should be noted that the roller module 23 is mainly driven by the oil cylinder to perform steering operations. Among them, the roller module 23 is also provided with an angle sensor to ensure that when the gantry 1 is subsequently separated from the prefabricated box beam construction platform, the roller module 23 rotates at a certain angle so that it can be separated from the prefabricated box beam construction platform in a direction perpendicular to its travel direction.

[0089] In other embodiments, a height sensor is further provided on the support portion 12 so that the plurality of support portions 12 can be located in the same horizontal plane by means of lifting by the support mechanism 21, thereby ensuring the flatness of the casting of the prefabricated box beam in the subsequent process.

[0090] In this embodiment, the supporting mechanism 21 is configured as a supporting cylinder.

[0091] like Figure 7 As shown, in a further embodiment, in order to further improve the stability of the gantry 1 when it is wrapped around the outside of the prefabricated box beam construction platform, an auxiliary support frame 13 is further provided to provide auxiliary support to the gantry 1.

[0092] Specifically, auxiliary support frames 13 are provided on the lower surfaces of the ends of the two frames 11 that are close to each other.

[0093] The auxiliary support frame 13 includes an auxiliary support rod 131 , an electric retractable rod 132 and a telescopic support leg 133 .

[0094] The auxiliary support rod 131 is hinged to the frame 11, one end of the electric retractable rod 132 is hinged to the frame 11, and the other end is hinged to the outer wall of the auxiliary support rod 131, so as to control the auxiliary support rod 131 to deflect in a direction close to or away from the ground.

[0095] In addition, the telescopic support foot 133 is disposed at the end of the auxiliary support rod 131 for supporting against the ground.

[0096] It should be noted that the telescopic legs 133 and the auxiliary support rod 131 can be telescoped together by means of a nut and a screw to ensure that when the auxiliary support rod 131 is deflected to be perpendicular to the ground, the telescopic legs 133 can be extended to contact the ground, thereby completing the auxiliary support. In addition, with the help of the characteristic that the telescopic legs 133 can be extended relative to the auxiliary support rod 131, when the support mechanism 21 is lifted, the telescopic legs 133 can make adaptive changes (i.e. adaptive telescoping) following the operation changes of the support mechanism 21, and the existence of the telescopic legs 133 will not interfere with the leveling of the multiple support parts 12.

[0097] like Figure 4 and Figure 5 As shown, a positioning frame 6 is fixedly installed on the upper surface of one end of the two frames 11 away from each other, which is used to form the loading station and to install the loading assembly 3, so that the loading assembly 3 can receive the materials output by the concrete mixer truck and can put the materials into the material distribution assembly 4 according to demand.

[0098] Specifically, the feeding assembly 3 includes a lifting mechanism 31 and a feeding bin 32 .

[0099] The lifting mechanism 31 is disposed in the positioning frame 6 and includes a lifting sprocket connected to the loading bin 32 .

[0100] The loading bin 32 has an open state and a closed state, which are used for discharging materials and storing materials respectively.

[0101] Furthermore, when the upper material bin 32 is pulled to the highest point by the lifting mechanism 31 , the material distribution assembly 4 can move to just below the upper material bin 32 .

[0102] It should be noted that the lifting mechanism 31 can be set as an electric hoist, which can realize the vertical movement of the upper bin 32 by tightening and contracting the lifting sprocket, and enable the material distribution assembly 4 to move to the bottom of the upper bin 32, and complete the unloading action by controlling the upper bin 32 to be in an open state.

[0103] Please continue reading Figure 5 The loading bin 32 includes a hollow bin body and two baffles arranged on opposite sides. The two baffles are installed on the outer wall of the bin body by rotating in opposite directions and can fit together to form a chamber with an open top for containing materials. When materials need to be contained, the two baffles are deflected and fit together in a direction close to each other, and when materials need to be discharged, the two baffles are deflected in a direction away from each other, so that the materials fall from the gap between the two baffles to be put into the material distribution assembly 4.

[0104] In this embodiment, the deflection between the two baffles can be controlled by an electric telescopic rod, and the rotating connection of the two baffles is connected by meshing gears, so that the opening and closing of the two baffles can be controlled by an electric telescopic rod to respectively realize the functions of loading and unloading.

[0105] like Figure 8 and Fig. 9 As shown, in this embodiment, a specific material distribution assembly 4 is also proposed to improve the material distribution and distribution effect, and prevent the material from condensing during the distribution process, thereby causing material jamming or poor casting effect during subsequent material discharge.

[0106] Specifically, the material distribution assembly 4 includes a material receiving bin 41 and a material discharging pipe 42 .

[0107] The receiving bin 41 is arranged on the frame 11 and moves along the length direction parallel to the construction platform of the prefabricated box beam (such as Fig. 9 The upper bin 32 moves in the X-axis direction to receive the material output from the upper bin 32.

[0108] In addition, the discharge pipe 42 is arranged in a row at equal intervals at the bottom of the receiving bin 41, and a discharge valve is provided at the connection between the discharge pipe 42 and the receiving bin 41, so the discharge pipe 42 and the receiving bin 41 can be connected by opening the discharge valve, thereby realizing the unloading function.

[0109] It should be noted that a vibration motor is provided on the outer wall of the discharge pipe 42 to accelerate the discharge of materials while also avoiding material jamming and the like.

[0110] In a further embodiment, proximity switch sensors are also provided on both sides of the inner wall of the frame 11. For example, the proximity switch sensor and the loading bin 32 are arranged in the same vertical plane, so that when the receiving bin 41 moves to the position of the proximity switch sensor, the loading bin 32 is autonomously in an open state to complete the unloading action, so as to realize the collaborative operation between multiple processes, thereby effectively improving the construction speed.

[0111] In other embodiments, the material distribution assembly 4 further includes a material pushing trolley 43 and a stirring trolley 44 .

[0112] Among them, there are two mixing carts 44, and both are slidably installed in the material receiving bin 41, and are used to push materials to a specified range to meet the casting requirements of prefabricated box girders of different specifications (such as single-line prefabricated box girders or double-line prefabricated box girders).

[0113] In addition, the mixing trolley 44 is also slidably installed inside the material receiving bin 41 and is located between the two material pushing trolleys 43 .

[0114] It should be noted that the mixing cart 44 has a bidirectional spiral mixing blade 441 extending into the material receiving bin 41 and capable of rotating around the moving direction of the mixing cart 44. The rotation of the bidirectional spiral mixing blade 441 can effectively prevent the material from condensing in the material receiving bin 41.

[0115] It should also be noted that the material receiving bin 41 , the material pushing trolley 43 and the mixing trolley 44 are all provided with travel motors for relative sliding.

[0116] Furthermore, the moving directions of the pusher trolley 43 and the stirring trolley 44 (i.e., along Fig. 9 The moving direction of the receiving bin 41 is perpendicular to the moving direction of the receiving bin 41.

[0117] like Fig.10 As shown, in other embodiments, a vibrating and smoothing assembly 5 is specifically disclosed, which is used for vibrating and smoothing after pouring is completed, so as to improve the forming effect of the prefabricated box girder.

[0118] Specifically, the vibrating and smoothing assembly 5 includes a plurality of vibrating plates 51 arranged along the length direction of the material receiving bin 41 and a plurality of smoothing rollers 52 of different shapes. By setting a plurality of vibrating plates 51 and a plurality of smoothing rollers 52 of different shapes, the application requirements of the pouring of the flowing slope of the single-line beam and the double-line beam can be met.

[0119] The vibrating plate 51 and the bottom wall of the material receiving bin 41 as well as the smoothing roller 52 and the bottom wall of the material receiving bin 41 are connected via independent lifting devices.

[0120] It should be noted that the lifting device can be set as a cylinder and connected to an external intelligent terminal to complete local vibration or leveling by manual remote control.

[0121] In addition, the vibrating plate 51, the discharging pipe 42 and the smoothing roller 52 are sequentially arranged along the material conveying direction of the receiving bin 41 (e.g., along Fig.10 (shown in the Va direction).

[0122] In other embodiments, a closed protective shed 7 is provided on the top of the gantry 1 .

[0123] A constant temperature control system and a cleaning system (not shown in the figure) are installed in the space formed between the closed protection shed 7 and the gantry 1.

[0124] Among them, the constant temperature control system is used for the maintenance of the prefabricated box girder after forming to prevent external factors from affecting the forming effect of the prefabricated box girder, and the cleaning system is connected to various construction components (such as the loading assembly 3, the material distribution assembly 4 and the vibrating and leveling assembly 5, etc.) through water pipes, so that when the gantry 1 is separated from the prefabricated box girder construction table, the cleaning system can be used to quickly clean the parts in contact with the materials, thereby facilitating the rapid construction of the next prefabricated box girder, and can effectively avoid the situation where concrete condenses on the inner walls of various construction components due to failure to clean in time.

[0125] In a further embodiment, a plurality of fixed operating tables 8 are arranged on the gantry 1 to monitor the operating conditions of the traveling and lifting assembly 2, the feeding assembly 3, the material distribution assembly 4 and the vibrating and smoothing assembly 5 respectively.

[0126] Embodiment 2

[0127] like Fig.11 As shown, this embodiment further proposes a construction method of a gantry concrete pouring machine for prefabricated box beams on the basis of the first embodiment, using the gantry concrete pouring machine for prefabricated box beams described in the first embodiment, specifically comprising the following steps:

[0128] S1, driving the gantry 1 to move by the walking jacking assembly 2, so that the gantry 1 wraps the prefabricated box girder construction table;

[0129] S2, unloading the materials into the loading assembly 3 through the concrete mixer truck;

[0130] S3, moving the material distribution assembly 4 to the loading station, and driving the loading assembly 3 to unload the material, and putting the material into the material distribution assembly 4;

[0131] S4, driving the material distribution assembly 4 to move, and pouring the material evenly on the prefabricated box girder construction table during the movement;

[0132] S5. When the material pouring is completed and the prefabricated box beam is formed on the prefabricated box beam construction table, the material distribution assembly 4 is continuously driven to move in a reciprocating manner to complete the vibration and smoothing of the prefabricated box beam in sequence;

[0133] S6. After the prefabricated box beam is smoothed, the beam surface of the prefabricated box beam is maintained;

[0134] S7, driving the traveling and lifting assembly 2 to move the gantry 1 to another box beam construction platform in a fixed-point direction to cast and form the next prefabricated box beam.

[0135] Through the above steps, the mechanized casting construction of the prefabricated box girder can be realized, so the construction time of the prefabricated box girder can be effectively shortened. Compared with the method of manually assisted pump pipe casting in the prior art, the labor intensity and the forming effect of the prefabricated box girder can be greatly reduced, thereby achieving the purpose of improving the forming rate and forming quality of the prefabricated box girder.

[0136] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A gantry concrete pouring machine for prefabricated box beams, characterized in that: include: The gantry (1) has two casting chambers, and a loading station is formed on one side of the two casting chambers away from each other; The gantry (1) comprises two frames (11) each having a casting chamber formed therein, and the two frames (11) are fixedly connected; Support portions (12) are provided on both sides of the lower surfaces of the ends of the two frames (11) that are away from each other; An auxiliary support frame (13) is provided on the lower surfaces of the ends of the two frames (11) that are close to each other; The auxiliary support frame (13) comprises an auxiliary support rod (131), an electric retractable rod (132) and a telescopic support foot (133); The auxiliary support rod (131) is hinged to the frame body (11); One end of the electric retractable rod (132) is hinged to the frame (11), and the other end is hinged to the outer wall of the auxiliary support rod (131), so as to control the auxiliary support rod (131) to deflect in a direction close to or away from the ground; The telescopic support foot (133) is arranged at the end of the auxiliary support rod (131) and is used for abutting against the ground for support; A walking jacking assembly (2) is arranged on the gantry (1) and is used to control the movement of the gantry (1) to wrap the prefabricated box girder construction platform or to separate from the prefabricated box girder construction platform at a fixed point; The walking and lifting assembly (2) is mounted on the supporting portion (12); The walking and lifting assembly (2) comprises a support mechanism (21), a support plate (22) and a roller module (23); The cylinder body of the support mechanism (21) is movably connected to the support portion (12), and the cylinder rod of the support mechanism (21) is movably connected to the support plate (22), and the support plate (22) is used to abut against the ground for support; The roller module (23) is sleeved and fixed on the outer wall of the cylinder body of the support mechanism (21), so that the roller module (23) is separated from the ground, and when the support mechanism (21) rotates with the support plate (22) as a fulcrum, it can drive the roller module (23) to rotate synchronously; A loading assembly (3) is arranged in the loading station and is used to receive materials provided by the concrete mixer truck and complete the output of the materials; A material distribution assembly (4) is arranged in the casting chamber and moves in a length direction parallel to the prefabricated box girder construction table surface, and can be moved to the loading station to receive the material output by the loading assembly (3) and evenly pour the material on the prefabricated box girder construction table surface; The vibrating and smoothing assembly (5) is relatively fixed to the material distribution assembly (4) and is used to sequentially vibrate and smooth the materials on the prefabricated box girder construction table.

2. The gantry concrete pouring machine for prefabricated box beams according to claim 1, characterized in that: A positioning frame (6) is fixedly mounted on the upper surfaces of the ends of the two frames (11) that are away from each other, and is used to form the loading station; The loading assembly (3) comprises a lifting mechanism (31) and a loading bin (32); The lifting mechanism (31) is arranged in the positioning frame (6) and comprises a lifting sprocket connected to the upper bin (32); The loading bin (32) has an open state and a closed state, respectively used for discharging materials and storing materials; When the upper material bin (32) is pulled to the highest point by the lifting mechanism (31), the material distribution assembly (4) can move to a position directly below the upper material bin (32).

3. The gantry concrete pouring machine for prefabricated box beams according to claim 2, characterized in that: The material distribution assembly (4) comprises a material receiving bin (41) and a material discharging pipe (42); The material receiving bin (41) is arranged on the frame (11) and moves in a length direction parallel to the prefabricated box beam construction table to receive the material output from the loading bin (32); The discharge pipes (42) are arranged in a row at equal intervals at the bottom of the receiving bin (41), and a discharge valve is provided at the connection between the discharge pipes (42) and the receiving bin (41).

4. The gantry concrete pouring machine for prefabricated box beams according to claim 3, characterized in that: The material distribution assembly (4) further comprises a material pushing trolley (43) and a stirring trolley (44); Two mixing carts (44) are provided, and both are slidably mounted in the material receiving bin (41); The mixing trolley (44) is also slidably mounted inside the material receiving bin (41) and is located between the two material pushing trolleys (43); The stirring trolley (44) has a bidirectional spiral stirring blade (441) extending into the interior of the material receiving bin (41) and capable of rotating around the moving direction of the stirring trolley (44).

5. The gantry concrete pouring machine for prefabricated box beams according to claim 4, characterized in that: The material receiving bin (41), the material pushing trolley (43) and the mixing trolley (44) are all provided with travel motors for relative sliding; The moving directions of the material pushing trolley (43) and the stirring trolley (44) are perpendicular to the moving direction of the material receiving bin (41).

6. The gantry concrete pouring machine for prefabricated box beams according to claim 3, characterized in that: The vibrating and smoothing assembly (5) comprises a plurality of vibrating plates (51) arranged along the length direction of the material receiving bin (41) and a plurality of smoothing rollers (52) of different shapes; The vibrating plate (51) and the bottom wall of the material receiving bin (41) as well as the smoothing roller (52) and the bottom wall of the material receiving bin (41) are connected via independent lifting devices; The vibrating plate (51), the material discharging pipe (42), and the smoothing roller (52) are arranged in sequence along the material conveying direction of the material receiving bin (41).

7. The gantry concrete pouring machine for prefabricated box beams according to claim 1, characterized in that: A closed protective shed (7) is provided on the top of the gantry (1); A constant temperature control system and a cleaning system are installed in the space formed between the closed protection shed (7) and the gantry (1); A plurality of fixed operating tables (8) are arranged on the gantry (1) for respectively monitoring the operating conditions of the traveling and lifting assembly (2), the loading assembly (3), the material distribution assembly (4) and the vibrating and smoothing assembly (5).

8. A construction method of a gantry concrete pouring machine for prefabricated box beams, characterized in that: The gantry concrete pouring machine for the prefabricated box beam according to any one of claims 1 to 7 specifically comprises the following steps: S1, driving the gantry (1) to move by means of the walking jacking assembly (2), so that the gantry (1) wraps around the construction surface of the prefabricated box beam; S2, unloading the materials into the loading assembly (3) through a concrete mixer truck; S3, moving the material distribution assembly (4) to the loading station, and driving the loading assembly (3) to unload the material, and putting the material into the material distribution assembly (4); S4, driving the material distribution assembly (4) to move, and pouring the material evenly on the prefabricated box girder construction table during the movement; S5. When the material pouring is completed and the prefabricated box beam is formed on the prefabricated box beam construction table, the material distribution assembly (4) is continuously driven to move in a reciprocating manner to complete the vibration and smoothing of the prefabricated box beam in sequence; S6. After the prefabricated box beam is smoothed, the beam surface of the prefabricated box beam is maintained; S7, driving the traveling and lifting assembly (2) to move the gantry (1) to another box beam construction platform in a fixed-point direction to cast and form the next prefabricated box beam.

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