Movable conveying device and conveying method for pouring self-compacting slurry at beam-column joint

Abstract

The invention provides a mobile conveying device and method for pouring self-compacting slurry at a beam-column joint, a chassis is fixedly arranged on the ground near the beam-column joint, and the chassis is provided with a vertical guide rail; the first lifting platform is movably arranged on the vertical guide rail, and the chassis is provided with a lifting driving cylinder which is in driving connection with the first lifting platform; the rotating seat is arranged on the first lifting platform in a manner of rotating around a vertical central rotating shaft, and a rotating driving motor is arranged between the first lifting platform and the rotating seat; a material box is arranged on the rotating seat, and self-compacting slurry is contained in the material box; the feeding pipe is connected to the front end of the material box, one end of the feeding pipe is communicated with the material box, the other end of the feeding pipe is provided with a feeding port, and the feeding pipe is provided with a flow rate switching mechanism for controlling the feeding speed of the self-compacting slurry. The self-compacting slurry pouring device is suitable for pouring self-compacting slurry at beam-column joints, the adjusting operation difficulty is reduced, and the conveying accuracy and efficiency of the self-compacting slurry are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, and particularly provides a mobile conveying device and conveying method for pouring self-compacting grout at a beam-column joint. BACKGROUND

[0002] Self-compacting grout is a special mortar prepared by mixing cement, fine aggregate, admixtures (such as water reducing agent, expanding agent) and mineral admixtures (silica fume, fly ash). The core principle is to achieve high fluidity by optimizing material ratio, self-flowing filling of complex structures, anti-segregation to ensure uniform distribution of aggregate and grout, and micro-expansion: the volume expansion rate is about 0.1% after hardening, which compensates for shrinkage and avoids cracking. With the increasing demand for green buildings, self-compacting grout is developing towards low carbonization (cementitious material replacement rate ≥ 30%) and intelligentization (built-in sensor monitoring hardening process), becoming a key material for infrastructure upgrading.

[0003] Currently, self-compacting grout is mostly transported by tower crane hoisting a hopper at the beam-column joint. In the process of conveying self-compacting grout to the beam-column joint, the hopper needs to be adjusted multiple times to align with the beam-column joint, which is difficult to operate and not suitable for space-limited beam-column joint sites. In addition, the material slides from the rear end of the hopper, and the throwing distance is small. Especially in some beam-column joints with top structures, the conveying method of tower crane hoisting a hopper is not applicable. SUMMARY

[0004] Therefore, the present application provides a mobile conveying device and conveying method for pouring self-compacting grout at a beam-column joint, which is suitable for pouring self-compacting grout at a beam-column joint, reduces the difficulty of adjustment operation, and improves the accuracy and efficiency of self-compacting grout conveying.

[0005] To achieve the above purpose, in a first aspect, the present application provides a mobile conveying device for pouring self-compacting grout at a beam-column joint, comprising a chassis, a first lifting platform, a rotating seat, a material box and a feeding pipe.

[0006] The chassis is fixedly arranged on the ground near the beam-column joint, and the chassis is provided with a vertical guide rail; the first lifting platform is movably arranged on the vertical guide rail, and the chassis is provided with a lifting drive cylinder in driving connection with the first lifting platform; the rotating seat is rotatably arranged on the first lifting platform about a vertical center rotating shaft, and a rotating drive motor is arranged between the first lifting platform and the rotating seat; the material box is arranged on the rotating seat, and self-compacting grout is contained in the material box; the feeding pipe is connected to the front end of the material box, one end of the feeding pipe is in communication with the material box, and the other end is provided with a feeding port, and the feeding pipe is provided with a flow rate switch mechanism for controlling the feeding speed of self-compacting grout.

[0007] The feeding pipe with feeding speed control is arranged in front of the material box, and feeds materials into the steel bars of the beam column, which is suitable for the flowability and self-compacting property of the self-compacting slurry, and the feeding speed and feeding amount can be controlled, so that the material in the material box is not emptied instantaneously, and the slurry is not difficult to enter the steel bars.

[0008] Further, the mobile conveying device further comprises a second lifting platform movably arranged above the rotating seat, and the rotating seat is provided with a vertical screw rod in driving connection with the motor, and the screw rod is engaged with a nut fixedly connected with the second lifting platform.

[0009] Further, the screw rod comprises a first screw rod and a second screw rod symmetrically arranged on the two sides of the second lifting platform, the screw pitches of the first screw rod and the second screw rod are equal, a first nut engaged with the first screw rod is fixedly connected to the left side of the second lifting platform, and a second nut engaged with the second screw rod is fixedly connected to the right side of the second lifting platform.

[0010] Further, the material box is connected with the second lifting platform through a horizontal hinge, and a pitch driving cylinder is arranged between the second lifting platform and the material box, the cylinder body of the pitch driving cylinder is hingedly connected with the second lifting platform, and the movable rod is hingedly connected with the material box.

[0011] Further, the front end of the material box is provided with a feeding port, the bottom of the feeding port is hingedly connected with a tail baffle, an angle adjusting cylinder is arranged between the material box and the tail baffle, the cylinder body of the angle adjusting cylinder is hingedly connected with the material box, and the movable cylinder is hingedly connected with the tail baffle, and the feeding pipe is connected to the tail baffle.

[0012] Further, the flow rate switch mechanism comprises a movable baffle hingedly connected through a horizontal hinge and arranged at the top of the front end of the feeding pipe, and an opening and closing driving cylinder is arranged between the feeding pipe and the movable baffle, the cylinder body of the opening and closing driving cylinder is hingedly connected with the feeding pipe, and the movable rod is hingedly connected with the movable baffle.

[0013] Further, the feeding pipe comprises a plurality of movable and plug-in pipe bodies, and a telescopic driving cylinder is arranged between adjacent pipe bodies, the last arm segment of the feeding pipe is connected with the material box, and the first arm segment is provided with the movable baffle.

[0014] Further, the material box is provided with a stirring mechanism, the stirring mechanism comprises a stirring shaft extending along the length direction of the material box, and stirring paddles are arranged in an array on the outer periphery of the stirring shaft, the rear end of the stirring shaft extends out of the material box and is connected with a driving motor, and the stirring conveying mechanism comprises a plurality of stirring shafts arranged in an array along the width direction of the material box, stirring paddles are respectively arranged in an array on the surfaces of the stirring shafts, and the stirring shafts are respectively connected with independent driving motors.

[0015] In order to achieve the above-mentioned purpose, the second aspect of the present application provides a mobile conveying device and conveying method for pouring self-compacting slurry at beam-column joints, comprising: in a low position of the first lifting platform, self-compacting slurry is loaded into the hopper; the lifting driving cylinder drives the first lifting platform to rise, and the hopper is raised to a set height for pouring; the angle adjusting mechanism drives the rotating seat to rotate around the vertical center shaft, and adjusts the pouring opening of the hopper to face the pouring position; the pitch driving cylinder drives the hopper to adjust the pitch angle, and the self-compacting slurry is conveyed to the pouring position through the pouring pipe.

[0016] Further, the mobile conveying device further comprises a second lifting platform movably arranged above the rotating seat, the hopper is connected to the second lifting platform through the horizontal hinge shaft, and the conveying method comprises: in the pouring process, the height of the hopper is dynamically adjusted to be always higher than the height of the pouring point through the second lifting platform, and the output speed of the self-compacting slurry is adjusted through the pitch angle of the hopper.

[0017] Compared with the prior art, the mobile conveying device and conveying method for pouring self-compacting slurry at beam-column joints have the following technical advantages: 1. By arranging the first lifting platform capable of height adjustment on the chassis, and arranging the rotating seat capable of rotating adjustment on the first lifting platform, the circumferential angle of the hopper can be adjusted through the rotating seat without moving the chassis, so that the pouring pipe of the hopper can be more simply operated and aligned with the beam-column joint for pouring.

[0018] 2. The lifting platform capable of accurately adjusting the height is arranged above the rotating seat, and the height of the hopper is adjusted through the lifting platform, so that the hopper can be accurately lifted according to the height of the slurry at the beam-column joint during the pouring process, and is suitable for pouring self-compacting slurry at different heights.

[0019] 3. The pouring pipe capable of telescopic adjustment is arranged, and the pouring pipe is adjusted in the telescopic mode without adjusting the front and rear positions of the hopper, so that the vertical alignment of the pouring opening and the beam-column pouring joint is realized.

[0020] 4. The tail baffle is arranged at the front end of the hopper, the pouring pipe is connected to the tail baffle, and the angle of the tail baffle is adjusted through the angle adjusting cylinder, so that the angle of the pouring pipe is dynamically adjusted during the pouring process, the vertical distance between the pouring opening and the beam-column pouring point is adjusted, the appropriate vertical pouring distance is maintained, the self-compacting slurry is prevented from splashing, and the pouring opening is prevented from sinking into the gradually rising slurry without being raised. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application.

[0022] Figure 1 is a front view of a perspective view of a mobile delivery device for casting self-compacting paste at a beam-column joint provided; Figure 2 is a rear view of a perspective view of a mobile delivery device for casting self-compacting paste at a beam-column joint provided; Figure 3 is a front view of a perspective view of a hopper and a delivery pipe of the mobile delivery device provided; Figure 4 is a side view of a perspective view of a hopper and a delivery pipe of the mobile delivery device provided; Figure 5 is a perspective view of the delivery pipe provided; Figure 6 is a flow chart of a delivery method for casting self-compacting paste at a beam-column joint provided.

[0023] Explanation of the drawings: 1 - base plate; 2 - first lifting platform; 3 - swivel seat, 31 - screw rod; 4 - second lifting platform, 41 - pitch driving cylinder; 5 - hopper, 51 - tail baffle, 52 - angle adjusting cylinder; 6 - delivery pipe, 61 - movable baffle, 62 - opening and closing driving cylinder, 63 - telescopic driving cylinder; 7 - stirring shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application, and not as any limitation on the present application and its application or use.

[0025] As Figures 1 to 6As shown, the present application provides a mobile conveying device for pouring self-compacting slurry at beam-column joint, which comprises a chassis 1, a first lifting platform 2, a rotating seat 3, a material box 5 and a feeding pipe 6. The chassis 1 is fixedly arranged on the ground near the beam-column joint, and is provided with vertical guide rails. The first lifting platform 2 is movably arranged on the vertical guide rails, and the chassis 1 is provided with a lifting driving cylinder in driving connection with the first lifting platform 2. The rotating seat 3 is rotatably arranged on the first lifting platform 2 about a vertical central rotating shaft, and a rotating driving motor is arranged between the first lifting platform 2 and the rotating seat 3. The material box 5 is arranged on the rotating seat 3, and the self-compacting slurry is stored in the material box 5. The feeding pipe 6 is connected to the front end of the material box 5, one end of the feeding pipe 6 is in communication with the material box 5, and the other end is provided with a feeding opening. The feeding pipe 6 is provided with a flow rate switch mechanism for controlling the feeding speed of the self-compacting slurry.

[0026] As shown in the drawings, Figure 6 the method for using the mobile conveying device for pouring self-compacting slurry at beam-column joint comprises the following steps: Firstly, the self-compacting slurry is loaded into the material box 5 in the low position of the first lifting platform 2; Then, the lifting driving cylinder drives the first lifting platform 2 to rise, and the material box 5 is raised to the set height of feeding; Then, the angle adjusting mechanism drives the rotating seat 3 to rotate about the vertical central rotating shaft, and adjusts the feeding opening of the material box 5 to face the feeding position; Finally, the pitching driving cylinder 41 drives the material box 5 to adjust the pitching angle, and the self-compacting slurry is conveyed to the feeding position by the feeding pipe 6.

[0027] By arranging the first lifting platform with height adjustment on the chassis and the rotating seat with rotating adjustment on the first lifting platform, the circumferential angle of the material box can be adjusted by the rotating seat without moving the chassis, so that the feeding pipe of the material box can be more simply operated and aligned to the beam-column joint for feeding.

[0028] As shown in the drawings, Figure 1 and Figure 2As shown, in the preferred embodiment, the mobile conveying device further comprises a second lifting platform 4 movably arranged above the rotating seat 3, the rotating seat 3 is provided with a vertically arranged screw rod 31 in driving connection with a motor, the screw rod 31 is engaged with a nut fixedly connected with the second lifting platform 4. Further, the screw rod 31 comprises a first screw rod and a second screw rod symmetrically arranged on both sides of the second lifting platform 4, the first screw rod and the second screw rod have equal pitch, a first nut engaged with the first screw rod is fixedly connected on the left side of the second lifting platform 4, and a second nut engaged with the second screw rod is fixedly connected on the right side of the second lifting platform 4, and the first screw rod is symmetrically arranged. The first screw rod and the second screw rod rotate synchronously during feeding, stably driving the lifting of the second lifting platform 4. During feeding, the height of the material box 5 is always higher than the height of the feeding point by dynamically adjusting the height of the second lifting platform 4, the material box 5 is connected with the second lifting platform 4 through a horizontal rotating shaft hinge, an elevation driving cylinder 41 is arranged between the second lifting platform 4 and the material box 5, the cylinder body of the elevation driving cylinder 41 is hinged with the second lifting platform 4, and the movable rod is hinged with the material box 5. The front end of the material box 5 is provided with a feeding port, the bottom of the feeding port is hinged with a tail baffle 51, an angle adjusting cylinder 52 is arranged between the material box 5 and the tail baffle 51, the cylinder body of the angle adjusting cylinder 52 is hinged with the material box 5, and the movable cylinder is hinged with the tail baffle 51, and the feeding pipe 6 is connected with the tail baffle 51, By arranging the tail baffle 51, the angle of the feeding pipe 6 can be adjusted without changing the angle of the material box, the height of the slurry to the feeding point can be flexibly adjusted, and the self-compacting slurry can be conveyed and fed at the beam-column joint with small space. The output speed of the self-compacting slurry can be adjusted by adjusting the pitch angle of the feeding pipe. The lifting platform arranged above the rotating seat can accurately adjust the height, and the height of the material box can be accurately adjusted by the lifting platform during feeding. The self-compacting slurry can be fed to different heights.

[0029] As shown in the drawings, Figure 5 The feeding pipe 6 comprises a plurality of movable and plug-in pipe bodies, and a telescopic driving cylinder 63 is arranged between adjacent pipe bodies. The last arm segment of the feeding pipe 6 is connected with the material box 5, and the first arm segment is provided with the movable baffle 61. The self-compacting slurry can be remotely conveyed, and the conveying distance of the self-compacting slurry can be adjusted without moving the material box 5 forward and backward. The remote operation of conveying and the quick and accurate adjustment of the conveying distance are provided, so that the self-compacting slurry can be fed to the beam-column joint.

[0030] And, the tail baffle 51 is arranged at the front end of the material box 5, the feeding pipe 6 is connected to the tail baffle 51, the angle of the tail baffle 51 is adjusted through the angle adjusting cylinder 52, and the angle of the feeding pipe 6 is dynamically adjusted during the feeding process, so that the vertical distance between the feeding opening and the beam column feeding point is adjusted, the appropriate vertical feeding distance is kept, the self-compacting slurry is prevented from splashing, and the feeding opening is prevented from sinking to the gradually raised slurry without being raised.

[0031] As shown in Figure 4 and Figure 5 , the flow rate switch mechanism includes a movable baffle 61 hingedly connected through a horizontal rotating shaft and arranged at the top of the front end of the feeding pipe 6, and an opening and closing driving cylinder 62 is arranged between the feeding pipe 6 and the movable baffle 61, the cylinder body of the opening and closing driving cylinder 62 is hingedly connected to the feeding pipe 6, and the movable rod is hingedly connected to the movable baffle 61. During feeding, the movable baffle 61 is driven to open or close by the opening and closing driving cylinder 62, so as to control the opening size of the feeding opening, control the feeding speed of the self-compacting slurry, and stop the feeding process in time to prevent the feeding speed from being too fast and the problem of being unable to stop in time.

[0032] As shown in Figure 3 and Figure 4 , in some preferred embodiments, a stirring mechanism is arranged in the material box 5, the stirring mechanism includes a stirring shaft 7 extending along the length direction of the material box 5, and stirring blades are circumferentially arranged on the outer periphery of the stirring shaft 7, the rear end of the stirring shaft 7 extends out of the material box 5 and is connected to a driving motor, the stirring conveying mechanism includes a plurality of stirring shafts 7 arranged along the width direction of the material box 5, and stirring blades are circumferentially arranged on the surface of each stirring shaft 7, and each stirring shaft 7 is connected to an independent driving motor. During feeding, the stirring shaft 7 is driven to rotate by the driving motor, the self-compacting slurry in the material box is stirred to prevent solidification, the conveying of the self-compacting slurry is kept smooth, and long-time and stable feeding of the self-compacting slurry is realized.

[0033] A mobile conveying device for pouring self-compacting slurry at a beam column joint is provided, a first lifting platform 2 is arranged on a base plate 1, a rotating seat 3 rotating around a vertical rotating shaft is arranged on the first lifting platform 2, a second lifting platform 4 is arranged between two vertical rails on the rotating seat 3, a material box is arranged on the second lifting platform 4, the height of the material box is accurately adjusted through the second lifting platform 4, the material box 5 is driven to reach the pouring height of the beam column, and the circumferential angle of the material box 5 is adjusted through the rotating seat 3 without moving the base plate 1, so that the rear end of the material box 5 is aligned with the pouring feeding opening. A feeding pipe 6 for controlling the feeding speed is arranged in front of the material box 5, the feeding pipe 6 extends into the reinforcement between the beam columns, is suitable for the flowability and self-compacting property of the self-compacting slurry, and the feeding speed and feeding amount can be controlled, so that the phenomenon of instantaneous emptying of the material in the material box and difficulty of the slurry to enter the reinforcement can be avoided.

[0034] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not to limit the present application; although the present application has been described in detail with reference to the preferred embodiments, it is understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, all of them should be covered in the technical solution range of the present application claimed by the present application.

Claims

1. A mobile conveying device for pouring self-compacting slurry at beam-column joints, characterized in that: include: A chassis (1) is fixedly arranged on the ground near the beam-column node, and the chassis (1) is provided with a vertical guide rail; A first lifting platform (2) is movably arranged on the vertical guide rail, and the chassis (1) is provided with a lifting drive cylinder drivingly connected to the first lifting platform (2); A rotating seat (3) is arranged on the first lifting platform (2) and rotates around a vertical central axis, and a rotary drive motor is provided between the first lifting platform (2) and the rotating seat (3); A material box (5) is arranged on the rotating seat (3), and the self-compacting slurry is contained in the material box (5); as well as A feeding pipe (6) is connected to the front end of the material box (5), one end of the feeding pipe (6) is connected to the material box (5), and the other end is provided with a feeding port. The feeding pipe (6) is provided with a flow rate switch mechanism for controlling the feeding speed of the self-compacting slurry.

2. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 1, characterized in that: The mobile conveying device further comprises a second lifting platform (4) movably arranged above the rotating seat (3); the rotating seat (3) is provided with a vertically arranged screw rod (31) connected to the motor drive; the screw rod (31) is engaged with a nut fixedly connected to the second lifting platform (4).

3. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 2, characterized in that: The screw rod (31) comprises a first screw rod and a second screw rod symmetrically arranged on both sides of the second lifting platform (4), the pitch of the first screw rod and the second screw rod being equal, a first nut engaged with the first screw rod being fixedly connected to the left side of the second lifting platform (4), and a second nut engaged with the second screw rod being fixedly connected to the right side of the second lifting platform (4).

4. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 1, characterized in that: The material box (5) is connected to the second lifting platform (4) via a hinge of a horizontal rotating shaft. A pitching drive cylinder (41) is provided between the second lifting platform (4) and the material box (5). The cylinder body of the pitching drive cylinder (41) is hinged to the second lifting platform (4), and the movable rod is hinged to the material box (5).

5. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 4, characterized in that: The front end of the material box (5) is provided with a feeding port, the bottom of the feeding port is hinged with a tail baffle (51), an angle adjustment cylinder (52) is provided between the material box (5) and the tail baffle (51), the cylinder body of the angle adjustment cylinder (52) is hinged to the material box (5), and the movable cylinder is hinged to the tail baffle (51), and the feeding pipe (6) is connected to the tail baffle (51).

6. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 1, characterized in that: The flow rate switch mechanism comprises a movable baffle (61) which is arranged at the top of the front end of the feeding pipe (6) and is hinged to the movable baffle (61) via a hinge of a horizontal rotating shaft; an opening and closing drive cylinder (62) is arranged between the feeding pipe (6) and the movable baffle (61); a cylinder body of the opening and closing drive cylinder (62) is hinged to the feeding pipe (6), and a movable rod is hinged to the movable baffle (61).

7. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 6, characterized in that: The feeding pipe (6) comprises a plurality of movably connected pipe bodies, and a telescopic drive cylinder (63) is provided between adjacent pipe bodies. The last arm section of the feeding pipe (6) is connected to the material box (5), and the first arm section is provided with the movable baffle (61).

8. The mobile conveying device for pouring self-compacting slurry at beam-column joints according to claim 1, characterized in that: A stirring mechanism is provided in the material box (5), the stirring mechanism comprising a stirring shaft (7) extending along the length direction of the material box (5), stirring blades being arranged in an array on the periphery of the stirring shaft (7), the rear end of the stirring shaft (7) extending out of the material box (5) and connected to a drive motor, the stirring and conveying mechanism comprising a plurality of stirring shafts (7) arranged in an array along the width direction of the material box (5), stirring blades being arranged in a circumferential array on the surface of each stirring shaft (7), and each stirring shaft (7) being connected to an independent drive motor.

9. A method for conveying self-compacting slurry for pouring at beam-column joints, characterized in that: include: When the first lifting platform (2) is in a low position, the self-compacting slurry is loaded into the material box (5); The lifting drive cylinder drives the first lifting platform (2) to rise, thereby raising the material box (5) to a set height for delivery; The angle adjustment mechanism drives the rotating seat (3) to rotate around the vertical central axis, adjusting the feeding port of the material box (5) toward the feeding position; The pitch drive cylinder (41) drives the material box (5) to adjust the pitch angle, and the self-compacting slurry is transported to the feeding position through the feeding pipe (6).

10. The method for conveying self-compacting slurry for pouring at beam-column joints according to claim 9, characterized in that: The mobile conveying device further comprises a second lifting platform (4) movably arranged above the rotating seat (3), the material box (5) being connected to the second lifting platform (4) via a hinge of a horizontal rotating shaft, and the conveying method comprising: During the feeding process, the height of the material box (5) is dynamically adjusted by the second lifting platform (4) so ​​that it is always higher than the height of the feeding point, and the output speed of the self-compacting slurry is adjusted by the pitch angle of the material box (5).

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