Prefabricated box girder grouting construction device

Abstract

The invention discloses a prefabricated box girder grouting construction device, and relates to the field of prefabricated box girder construction, and the technical scheme is that the prefabricated box girder grouting construction device comprises a frame, a primary stirring barrel arranged on the frame and a feeding mechanism used for feeding materials into the primary stirring barrel, a secondary stirring barrel arranged in the middle of the frame, and a discharging pipe arranged at the lower end of the primary stirring barrel; the discharging pipe extends to the upper part of the secondary stirring barrel; the primary stirring barrel and the secondary stirring barrel are used for stirring raw materials for preparing the grouting material; a grouting pump is further arranged on the frame, the grouting pump is communicated with the secondary stirring barrel, and a grouting pipe is connected to the grouting pump. The two-stage stirring device has the beneficial effects that through two-stage stirring, the uniformity of slurry is improved; and bubbles can be eliminated, local weak points caused by the bubbles can be effectively avoided, the strength of all parts of the box girder is more uniform and stable, and the safety and reliability of the prefabricated box girder in the using process are guaranteed.

Description

Technical Field

[0001] The invention relates to the field of prefabricated beam box construction, and in particular to a prefabricated box beam grouting construction device. Background Art

[0002] During the construction of highway bridges, prestressed pipes will be installed in the prefabricated beam boxes. Prestressed steel bars and casings will pass through the prestressed pipes. After the prestressed steel bars and casings are installed, the prestressed pipes need to be filled with grouting material. When the grouting material is flushed into the prestressed pipes, the prestressed steel bars are wrapped in the grouting material to prevent them from being exposed and in contact with the air, thereby preventing the prestressed steel bars from being corroded. The grouting material has a certain micro-expansion performance. When the grouting material is pressed into the prestressed pipe, it can compensate for the shrinkage and deformation of the concrete during the solidification process. The grouting material can be well combined with the concrete to ensure the effective transmission of prestress.

[0003] When grouting material is used, it is obtained by fully mixing water, cement and various additives on site through a stirring device. Traditional construction equipment adds water, additives and cement to the stirring device in sequence for stirring. However, during the mixing process of the raw materials, gas will be mixed in the grouting material. The bubbles formed by the residual gas in the slurry will become weak points in the structure. After the grouting construction, when the slurry hardens, the areas where these bubbles are located will cause the density of the slurry to decrease, thereby weakening the overall strength; the presence of gas will hinder the full filling of the slurry in the box girder prestressed pipes and other parts, resulting in loose grouting. It is difficult for traditional construction equipment to remove the bubbles in the grouting material, affecting the quality of construction. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a prefabricated box girder grouting construction device.

[0005] The technical solution is as follows: it comprises a frame, a primary mixing barrel and a feeding mechanism for feeding materials into the primary mixing barrel are arranged on the frame, a secondary mixing barrel is arranged in the middle of the frame, a discharge pipe is arranged at the lower end of the primary mixing barrel, and the discharge pipe extends to the upper part of the secondary mixing barrel; The primary stirring barrel and the secondary stirring barrel are used to stir the raw materials for preparing the grouting material; A grouting pump is also arranged on the frame, the grouting pump is communicated with the secondary mixing barrel, and a grouting pipe is connected to the grouting pump.

[0006] Preferably, a stirring mechanism is arranged in the secondary stirring barrel, and the stirring mechanism comprises a stirring motor fixedly arranged on the frame, a rotating frame is coaxially fixedly arranged on the motor shaft of the stirring motor, and the rotating frame is cross-shaped, and an agitator is rotatably arranged at two opposite ends of the rotating frame, and a scraping unit is fixedly arranged at the other two ends, and two groups of vibration components for eliminating bubbles in the slurry are also arranged on the rotating frame, and each group of the vibration components is close to the scraping unit; A transmission unit for driving the stirrer and the vibration assembly is also arranged in the rotating frame.

[0007] Preferably, the stirrer comprises a crossbar rotatably connected to the rotating frame, a stirring rod is respectively arranged at both ends of the crossbar, and a stirring blade is fixedly arranged at the lower end of each stirring rod; The scraping unit comprises a barrel wall scraper and a barrel bottom scraper, the barrel wall scraper and the barrel bottom are respectively located at two ends of the rotating frame, and the barrel wall scraper and the barrel bottom scraper are fixedly connected to the rotating frame through a fixing rod.

[0008] Preferably, the vibration assembly comprises a vibration cylinder fixedly arranged on the rotating frame, the vibration cylinder is fixedly connected to the rotating frame through a flexible coupling, two shaft sleeves are arranged in the vibration cylinder, and a plurality of springs are fixedly arranged on the outer wall of each shaft sleeve, and the springs are fixed to the inner wall of the vibration cylinder; A rotating shaft is rotatably arranged in the shaft sleeve, and a plurality of counterweight blocks are fixedly arranged on the rotating shaft. The counterweight blocks are in a sector shape, and the center of the sector is fixedly connected to the rotating shaft.

[0009] Preferably, a flexible coupling is fixedly arranged at the upper end of the rotating shaft, and the flexible coupling comprises two ferrules, which are connected by a connecting piece, the connecting piece is cross-shaped, and the connecting piece is made of flexible material. The two opposite sides of the connecting piece are bent upward and the ends are fixedly connected to one of the ferrules, and the remaining two opposite sides are bent downward and the ends are connected to the other ferrule, forming two waist-shaped holes in vertical contact.

[0010] Preferably, the transmission unit comprises a bevel gear plate arranged in the middle of the rotating frame, the bevel gear plate is fixedly arranged on the frame, four intermediate bevel gears are meshed on the bevel gear plate, a transmission rod is fixedly arranged on each of the intermediate bevel gears, a driving bevel gear is coaxially fixedly arranged on the transmission rod, and a driven bevel gear is meshed on the driving bevel gear; The two opposite driven bevel gears are fixedly connected to the agitator, and a gearbox is respectively arranged on the other two driven bevel gears. The input shaft of the gearbox is fixedly connected to the driven bevel gears, and the output shaft is fixedly connected to the flexible coupling of the vibration assembly.

[0011] Preferably, a support frame is provided on the top of the primary stirring barrel, a stirring shaft is rotatably connected to the support frame and extends into the barrel body, a motor is fixedly connected to the support frame for driving the stirring shaft to rotate, and a stirring blade is fixedly connected to the stirring shaft.

[0012] Preferably, the feeding mechanism comprises a hopper fixedly mounted on the frame, a feeding pipe is arranged on one side of the hopper, the feeding pipe extends to the top of the primary mixing barrel, and a feeding motor is fixedly mounted on the feeding pipe; An auger is also arranged in the feeding pipe, and the motor shaft of the feeding motor is coaxially fixed with the auger; The upper end of the delivery pipe is provided with a discharge port, and the discharge port faces the primary stirring barrel.

[0013] The technical solution provided by the embodiment of the present invention has the following beneficial effects: through two-stage stirring, the uniformity of the slurry is improved; bubbles can be eliminated, and local weak points caused by bubbles can be effectively avoided, so that the strength of each part of the box girder is more uniform and stable, thereby ensuring the safety and reliability of the prefabricated box girder during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0015] Figure 2 Schematic diagram of a stirring mechanism according to an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the stirring mechanism without the rotating frame according to an embodiment of the present invention.

[0017] Figure 4 Schematic diagram of a transmission unit according to an embodiment of the present invention.

[0018] Figure 5 Schematic diagram of a vibration assembly and a transmission according to an embodiment of the present invention.

[0019] Figure 6 Schematic diagram of the interior of a vibration tube according to an embodiment of the present invention.

[0020] Figure 7 Schematic diagram of a flexible coupling according to an embodiment of the present invention.

[0021] Figure 8 Schematic diagram of a feeding mechanism according to an embodiment of the present invention.

[0022] The figures are marked as follows: 1, frame; 1-1, primary mixing barrel; 1-2, secondary mixing barrel; 1-3, feeding mechanism; 1-31, hopper; 1-32, feeding pipe; 1-33, feeding motor; 1-34, discharge port; 1-4, grouting pump; 2, stirring mechanism; 2-1, stirring motor; 2-2, rotating frame; 2-3, stirrer; 2-31, cross bar; 2-32, stirring rod; 2-33, stirring blade; 2-4, scraping unit; 2-41, barrel wall scraper; 2- 42. Scraper plate at the bottom of barrel; 2-5. Vibration assembly; 2-51. Vibration cylinder; 2-52. Flexible coupling; 2-53. Bushing; 2-54. Spring; 2-55. Rotating shaft; 2-56. Counterweight; 2-57. Flexible coupling; 2-58. Clamping sleeve; 2-59. Connecting plate; 2-6. Transmission unit; 2-61. Bevel gear; 2-62. Intermediate bevel gear; 2-63. Transmission rod; 2-64. Active bevel gear; 2-65. Driven bevel gear; 2-66. Gearbox. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0027] Example 1 See also Figures 1 to 8 The present invention provides a prefabricated box beam grouting construction device, comprising a frame 1, a primary mixing barrel 1-1 and a feeding mechanism 1-3 for feeding materials into the primary mixing barrel 1-1 are arranged on the frame 1, a secondary mixing barrel 1-2 is also arranged in the middle of the frame 1, a discharge pipe is arranged at the lower end of the primary mixing barrel 1-1, and the discharge pipe extends to the upper part of the secondary mixing barrel 1-2; The primary stirring barrel 1-1 and the secondary stirring barrel 1-2 are used to stir the raw materials for preparing the grouting material; The level of the primary stirring barrel 1-1 is higher than that of the secondary stirring barrel 1-2; a valve is also provided on the discharge pipe; the mixed raw materials for preparing the slurry are added into the primary stirring barrel 1-1 through the feeding mechanism 1-3, and the mixed raw materials are stirred by the primary stirring barrel 1-1 to form a preliminary uniform slurry; When the slurry in the primary mixing barrel 1-1 is stirred evenly, the valve on the discharge pipe is opened. Since the level of the primary mixing barrel 1-1 is higher than that of the secondary mixing barrel 1-2, the slurry naturally flows into the secondary mixing barrel 1-2 through the discharge pipe under the action of gravity. A grouting pump 1-4 is also provided on the vehicle frame 1, the grouting pump 1-4 is connected to the secondary mixing barrel 1-2, and a grouting pipe is connected to the grouting pump 1-4.

[0028] After all the slurry flows into the secondary mixing barrel 1-2, the slurry is stirred again by the secondary mixing barrel 1-2. The purpose of the secondary stirring is to further ensure the uniformity and stability of the slurry and eliminate the stratification or unevenness that may occur during the slurry transfer process. At the same time, bubbles will be generated when the cement slurry is stirred, which seriously affects the quality of the grouting construction. The secondary mixing barrel 1-2 can defoam the cement slurry while stirring, effectively reducing the bubbles in the cement slurry and improving the construction quality.

[0029] A stirring mechanism 2 is arranged in the secondary stirring barrel 1-2, and the stirring mechanism 2 includes a stirring motor 2-1 fixedly arranged on the frame 1, a rotating frame 2-2 is coaxially fixedly arranged on the motor shaft of the stirring motor 2-1, and the rotating frame 2-2 is cross-shaped, and an agitator 2-3 is rotatably arranged at two opposite ends of the rotating frame 2-2, and a scraping unit 2-4 is fixedly arranged at the other two ends, and two groups of vibration components 2-5 for eliminating bubbles in the slurry are also arranged on the rotating frame 2-2, and each group of vibration components 2-5 is close to the scraping unit 2-4; A transmission unit 2-6 for driving the agitator 2-3 and the vibration assembly 2-5 is also arranged in the rotating frame 2-2.

[0030] Start the stirring motor 2-1, and the stirring motor 2-1 drives the rotating frame 2-2 to rotate. When the rotating frame 2-2 rotates, the stirrers 2-3 at the opposite ends thereof begin to stir the slurry in the secondary stirring barrel 1-2. During the rotation of the stirrer 2-3, the slurry is caused to flip up and down and flow radially, further promoting the uniform mixing of various components in the slurry. Since the rotating frame 2-2 itself rotates, the position distribution of the stirrer 2-3 can better cover different areas in the secondary stirring barrel 1-2, ensuring that the slurry as a whole is fully stirred; The scraper units 2-4 at the other two ends of the rotating frame 2-2 rotate with the rotating frame 2-2, and the scrapers of the scraper units 2-4 are closely attached to the inner wall of the secondary mixing barrel 1-2, so as to scrape off the slurry attached to the barrel wall, thereby preventing the slurry from agglomerating or remaining on the barrel wall, thereby ensuring full utilization of the slurry and uniform mixing, and also helping to keep the mixing barrel clean and reduce the impact on the subsequent mixing quality; When the rotating frame 2-2 rotates, the vibration assembly 2-5 generates vibration under the drive of the transmission unit 2-6, and the vibration wave is transmitted to the slurry, so that the bubbles in the slurry are vibrated and burst, thereby achieving the purpose of eliminating the bubbles.

[0031] The stirrer 2-3 includes a crossbar 2-31 rotatably connected to the rotating frame 2-2, and a stirring rod 2-32 is respectively arranged at both ends of the crossbar 2-31, and a stirring blade 2-33 is fixedly arranged at the lower end of each stirring rod 2-32; The scraping unit 2-4 includes a barrel wall scraper 2-41 and a barrel bottom scraper 2-42. The barrel wall scraper 2-41 and the barrel bottom are respectively located at the two ends of the rotating frame 2-2. The barrel wall scraper 2-41 and the barrel bottom scraper 2-42 are fixedly connected to the rotating frame 2-2 through a fixing rod.

[0032] Under the action of the transmission unit 2-6, when the rotating frame 2-2 rotates, it will drive the agitator 2-3 to rotate, and the stirring blades 2-33 rotate, which can push the surrounding slurry to move and promote further uniform mixing of the components in the slurry; As the rotating frame 2-2 rotates, the barrel wall scraper 2-41 moves in a circular motion along the inner wall of the secondary mixing barrel 1-2. The barrel wall scraper 2-41 fits tightly against the barrel wall and continuously scrapes off the slurry attached to the barrel wall to prevent the slurry from agglomerating, adhering or settling on the barrel wall. The barrel bottom scraper 2-42 scrapes the bottom of the secondary mixing barrel 1-2 during rotation. The barrel bottom scraper 2-42 can scrape up the slurry deposited on the barrel bottom and allow it to re-participate in the mixing process, thereby avoiding uneven composition and possible hardening caused by the accumulation of slurry at the bottom.

[0033] The vibration assembly 2-5 includes a vibration cylinder 2-51 fixedly arranged on the rotating frame 2-2. The vibration cylinder 2-51 is fixedly connected to the rotating frame 2-2 through a flexible coupling 2-52. The flexible coupling 2-52 can prevent the vibration generated by the vibration cylinder 2-51 from being transmitted to the rotating frame 2-2. Two shaft sleeves 2-53 are arranged in the vibration cylinder 2-51. The outer wall of each shaft sleeve 2-53 is fixedly arranged with a plurality of springs 2-54. The springs 2-54 are fixed to the inner wall of the vibration cylinder 2-51. A rotating shaft 2-55 is rotatably set in the shaft sleeve 2-53, and a plurality of counterweight blocks 2-56 are fixedly set on the rotating shaft 2-55. The counterweight blocks 2-56 are fan-shaped, and the center of the fan-shaped circle is fixedly connected to the rotating shaft 2-55.

[0034] Under the action of the transmission unit 2-6, the transmission unit 2-6 will drive the rotating shaft 2-55 to rotate. When the rotating shaft 2-55 rotates, it will drive the counterweight block 2-56 to rotate. Due to the action of centrifugal force, the counterweight block 2-56 will generate periodic torque on the rotating shaft 2-55; the periodic change in the direction of the centrifugal force causes the rotating shaft 2-55 to generate torsional vibration around its axis. This torsional vibration is further transmitted and amplified through the interaction between the sleeve 2-53 and the spring 2-54 and the vibration tube 2-51, and finally the entire vibration assembly 2-5 produces a strong and regular vibration effect; The vibration generated by the vibration component 2-5 is effectively transmitted to the slurry in the secondary mixing barrel 1-2 through the vibration tube 2-51. The internal pressure of the bubbles in the slurry changes under the action of the vibration, causing the bubble wall to rupture, thereby achieving the purpose of defoaming. During the mixing process, the vibration component 2-5 works continuously and stably, and continuously defoams the slurry, ensuring that the slurry has good quality characteristics before entering the grouting pump 1-4, providing a high-quality slurry foundation for the grouting construction of prefabricated box girders.

[0035] A flexible coupling 2-57 is fixedly arranged at the upper end of the rotating shaft 2-55. The flexible coupling 2-57 includes two ferrules 2-58. The two ferrules 2-58 are connected by a connecting piece 2-59. The connecting piece 2-59 is cross-shaped and made of flexible material. The two opposite sides of the connecting piece 2-59 are bent upward and the ends are fixedly connected to one of the ferrules 2-58, and the remaining two opposite sides are bent downward and the ends are connected to the other ferrule 2-58, forming two waist-shaped holes in vertical contact.

[0036] The flexible connecting shaft can transmit the power of the transmission unit 2-6 to the rotating shaft 2-55, so that the rotating shaft 2-55 rotates. When the rotating shaft 2-55 rotates during operation, due to the special structural design of the connecting piece 2-59, it can absorb and buffer the axial, radial and angular displacements generated by the rotating shaft 2-55 during the rotation process to a certain extent; When the vibration generated by the rotation of the rotating shaft 2-55 is transmitted to the flexible coupling 2-57 through the rotating shaft 2-55, the connecting plate 2-59 can be elastically deformed and relatively slid within a certain range, so that the vibration is buffered and attenuated. This vibration isolation and compensation function helps to improve the operating stability and reliability of the entire equipment, reduce equipment wear, increased noise and possible failure probability caused by vibration; at the same time, it can also ensure that in a vibration environment, the transmission of torque can still remain relatively stable, ensure the normal operation of the rotating shaft 2-55, ensure that the stirring rod 2-32 and the vibration component 2-5 can continue to effectively perform stirring and defoaming operations, and provide stable slurry quality for grouting construction.

[0037] The transmission unit 2-6 includes a bevel gear disc 2-61 arranged in the middle of the rotating frame 2-2, the bevel gear disc 2-61 is fixedly arranged on the frame 1, four intermediate bevel gears 2-62 are meshed on the bevel gear disc 2-61, a transmission rod 2-63 is fixedly arranged on each intermediate bevel gear 2-62, a driving bevel gear 2-64 is coaxially fixedly arranged on the transmission rod 2-63, and the driving bevel gear 2-64 is meshed with a driven bevel gear 2-65; Two opposite driven bevel gears 2-65 are fixedly connected to the agitator 2-3, and a gearbox 2-66 is respectively arranged on the other two driven bevel gears 2-65. The input shaft of the gearbox 2-66 is fixedly connected to the driven bevel gear 2-65, and the output shaft is fixedly connected to the flexible coupling 2-57 of the vibration assembly 2-5.

[0038] When the stirring motor 2-1 is started, it drives the rotating frame 2-2 to rotate. The rotation of the rotating frame 2-2 drives the intermediate bevel gear 2-62 fixed thereon to revolve around the bevel gear disc 2-61. At the same time, due to the meshing action between the bevel gear disc 2-61 and the intermediate bevel gear 2-62, the intermediate bevel gear 2-62 itself will also rotate. The rotation of the intermediate bevel gear 2-62 drives the active bevel gear 2-64 to rotate through the transmission rod 2-63, and the active bevel gear 2-64 then meshes with the driven bevel gear 2-65 to transmit power to the driven bevel gear 2-65; When the driven bevel gear 2-65 obtains power, it drives the agitator 2-3 connected thereto to rotate, thereby stirring the slurry in the secondary mixing barrel 1-2 to ensure that the slurry is fully and evenly mixed; Gearboxes 2-66 are respectively arranged on the other two driven bevel gears 2-65. The rotation of the driven bevel gears 2-65 is first transmitted to the input shaft of the gearbox 2-66, and the power is transmitted to the rotating shaft 2-55 of the vibration component 2-5 through the flexible coupling 2-57, thereby driving the vibration component 2-5 to work; so that the vibration component 2-5 can stably produce a vibration effect and realize the elimination of bubbles in the slurry.

[0039] The gearbox 2-66 is a planetary gear gearbox 2-66, the ring gear of the planetary gear is fixed on the gearbox 2-66 housing, the planetary carrier of the planetary gear is coaxially fixed with the adjacent driven bevel gear 2-65, and the sun gear of the planetary gear is fixedly connected with the flexible coupling 2-57 of the vibration assembly.

[0040] The planetary gearbox 2-66 has a speed-increasing effect. In actual use, the vibration component 2-5 needs to run at a higher speed to enhance the effect of eliminating bubbles in the slurry. Through the speed-increasing effect of the planetary gearbox 2-66, even if the speed of the driven bevel gear 2-65 is relatively low, power can be transmitted to the sun gear, and the sun gear can drive the rotating shaft 2-55 of the vibration component at a higher speed to achieve the required high-frequency vibration.

[0041] A support frame is arranged on the top of the primary mixing barrel 1-1, a mixing shaft rotatably connected to the support frame and extending into the barrel body, a motor fixedly connected to the support frame for driving the mixing shaft to rotate, and a mixing blade fixedly connected to the mixing shaft.

[0042] Driven by the stirring shaft, the stirring blade stirs the slurry in the barrel to promote the initial mixing of the raw materials.

[0043] The feeding mechanism 1-3 includes a hopper 1-31 fixedly mounted on the frame 1, a feeding pipe 1-32 is arranged on one side of the hopper 1-31, the feeding pipe 1-32 extends to the top of the primary mixing barrel 1-1, and a feeding motor 1-33 is fixedly mounted on the feeding pipe 1-32; An auger is also arranged in the feeding pipe 1-32, and the motor shaft of the feeding motor 1-33 is coaxially fixed with the auger; A discharge port 1-34 is provided at the upper end of the delivery pipe 1-32, and the discharge port 1-34 faces the primary mixing barrel 1-1.

[0044] The user pours the raw materials into the hopper 1-31 and starts the feeding motor 1-33. The motor shaft drives the auger to start rotating. The rotation of the auger transports the raw materials in the hopper 1-31 upward along the feeding pipe 1-32. When the raw materials are transported to the discharge port 1-34 at the upper end through the feeding pipe 1-32, the raw materials fall into the primary mixing barrel 1-1 from the discharge port 1-34 under the action of gravity.

[0045] When the present invention is used, the mixed raw materials for preparing the slurry are added into the primary stirring barrel 1-1 through the feeding mechanism 1-3, and the mixed raw materials are stirred by the primary stirring barrel 1-1 to form a preliminary uniform slurry; When the slurry in the primary mixing barrel 1-1 is stirred evenly, the valve on the discharge pipe is opened. Since the level of the primary mixing barrel 1-1 is higher than that of the secondary mixing barrel 1-2, the slurry naturally flows into the secondary mixing barrel 1-2 through the discharge pipe under the action of gravity. After all the slurry flows into the secondary mixing barrel 1-2, the slurry is stirred again by the secondary mixing barrel 1-2. The purpose of the secondary stirring is to further ensure the uniformity and stability of the slurry and eliminate the stratification or unevenness that may occur during the slurry transfer process. At the same time, bubbles will be generated when the cement slurry is stirred, which seriously affects the quality of the grouting construction. The secondary mixing barrel 1-2 can defoam the cement slurry while stirring, effectively reducing the bubbles in the cement slurry and improving the construction quality.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A prefabricated box beam grouting construction device, characterized in that: The invention comprises a frame (1), a primary stirring barrel (1-1) and a feeding mechanism (1-3) for feeding materials into the primary stirring barrel (1-1) are arranged on the frame (1), a secondary stirring barrel (1-2) is also arranged in the middle of the frame (1), a discharge pipe is arranged at the lower end of the primary stirring barrel (1-1), and the discharge pipe extends to the top of the secondary stirring barrel (1-2); The primary stirring barrel (1-1) and the secondary stirring barrel (1-2) are used to stir the raw materials for preparing the grouting material; A grouting pump (1-4) is also provided on the vehicle frame (1); the grouting pump (1-4) is in communication with the secondary mixing barrel (1-2); and a grouting pipe is connected to the grouting pump (1-4).

2. The prefabricated box beam grouting construction device according to claim 1 is characterized in that: A stirring mechanism (2) is arranged in the secondary stirring barrel (1-2), the stirring mechanism (2) comprising a stirring motor (2-1) fixedly arranged on the frame (1), a rotating frame (2-2) coaxially fixedly arranged on the motor shaft of the stirring motor (2-1), the rotating frame (2-2) being in a cross shape, a stirrer (2-3) being rotatably arranged at two opposite ends of the rotating frame (2-2), and a wall scraping unit (2-4) being fixedly arranged at the other two ends, and two groups of vibration components (2-5) for eliminating bubbles in the slurry are also arranged on the rotating frame (2-2), and each group of the vibration components (2-5) is close to the wall scraping unit (2-4); A transmission unit (2-6) for driving the stirrer (2-3) and the vibration component (2-5) is also provided in the rotating frame (2-2).

3. The prefabricated box beam grouting construction device according to claim 2 is characterized in that: The stirrer (2-3) comprises a crossbar (2-31) rotatably connected to the rotating frame (2-2), a stirring rod (2-32) being respectively arranged at the two ends of the crossbar (2-31), and a stirring blade (2-33) being fixedly arranged at the lower end of each stirring rod (2-32); The wall scraping unit (2-4) comprises a barrel wall scraper (2-41) and a barrel bottom scraper (2-42); the barrel wall scraper (2-41) and the barrel bottom are respectively located at two ends of the rotating frame (2-2); and the barrel wall scraper (2-41) and the barrel bottom scraper (2-42) are both fixedly connected to the rotating frame (2-2) via a fixing rod.

4. The grouting construction device for prefabricated box beams according to claim 3 is characterized in that: The vibration assembly (2-5) comprises a vibration cylinder (2-51) fixedly arranged on the rotating frame (2-2); the vibration cylinder (2-51) is fixedly connected to the rotating frame (2-2) via a flexible coupling (2-52); two shaft sleeves (2-53) are arranged in the vibration cylinder (2-51); a plurality of springs (2-54) are fixedly arranged on the outer wall of each shaft sleeve (2-53); and the springs (2-54) are fixed to the inner wall of the vibration cylinder (2-51); A rotating shaft (2-55) is rotatably arranged in the shaft sleeve (2-53), and a plurality of counterweight blocks (2-56) are fixedly arranged on the rotating shaft (2-55). The counterweight blocks (2-56) are fan-shaped, and the center of the fan-shaped circle is fixedly connected to the rotating shaft (2-55).

5. The grouting construction device for prefabricated box beams according to claim 4 is characterized in that: A flexible coupling (2-57) is fixedly arranged at the upper end of the rotating shaft (2-55), and the flexible coupling (2-57) comprises two ferrules (2-58). The two ferrules (2-58) are connected via a connecting piece (2-59), and the connecting piece (2-59) is cross-shaped. The connecting piece (2-59) is made of a flexible material, and the two opposite sides of the connecting piece (2-59) are bent upwards and the ends thereof are fixedly connected to one of the ferrules (2-58), and the remaining two opposite sides are bent downwards and the ends thereof are connected to the other ferrule (2-58), so as to form two waist-shaped holes in vertical contact.

6. The grouting construction device for prefabricated box beams according to claim 5 is characterized in that: The transmission unit (2-6) comprises a bevel gear disc (2-61) arranged in the middle of the rotating frame (2-2), the bevel gear disc (2-61) being fixedly arranged on the vehicle frame (1), the bevel gear disc (2-61) being meshed with four intermediate bevel gears (2-62), a transmission rod (2-63) being fixedly arranged on each of the intermediate bevel gears (2-62), a driving bevel gear (2-64) being coaxially fixedly arranged on the transmission rod (2-63), and a driven bevel gear (2-65) being meshed with the driving bevel gear (2-64); Two of the opposite driven bevel gears (2-65) are fixedly connected to the agitator (2-3), and a gearbox (2-66) is respectively provided on the other two driven bevel gears (2-65). The input shaft of the gearbox (2-66) is fixedly connected to the driven bevel gear (2-65), and the output shaft is fixedly connected to the flexible coupling (2-57) of the vibration component (2-5).

7. The grouting construction device for prefabricated box beams according to claim 1 is characterized in that: A support frame is arranged on the top of the primary stirring barrel (1-1); a stirring shaft is rotatably connected to the support frame and extends into the barrel body; a motor is fixedly connected to the support frame and is used to drive the stirring shaft to rotate; and a stirring blade is fixedly connected to the stirring shaft.

8. The grouting construction device for prefabricated box beams according to claim 1 is characterized in that: The feeding mechanism (1-3) comprises a hopper (1-31) fixedly arranged on the frame (1), a feeding pipe (1-32) is arranged on one side of the hopper (1-31), the feeding pipe (1-32) extends to the top of the primary stirring barrel (1-1), and a feeding motor (1-33) is fixedly arranged on the feeding pipe (1-32); An auger is also arranged in the material conveying pipe (1-32), and the motor shaft of the material conveying motor (1-33) is coaxially fixed with the auger; The upper end of the material delivery pipe (1-32) is provided with a material discharge port (1-34), and the material discharge port (1-34) faces the primary stirring barrel (1-1).

Images