Fine aggregate concrete spreader
By designing a fine aggregate concrete placing machine, the problem of cumbersome operation of existing equipment was solved, enabling rapid concrete placing and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI XUELONG MACHINERY MFG
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-14
AI Technical Summary
The existing concrete production equipment is numerous and the operation process is cumbersome, making it impossible to achieve rapid material placement.
Design a fine aggregate concrete placing boom, including a traveling mechanism and a placing hopper, equipped with a weighing device, a mixing mechanism and a door opening mechanism, adopting a V-shaped funnel design with a 30° inclined side wall, and equipped with a weighing system to realize direct batching and rapid placement of concrete.
It enables rapid concrete placement, reduces material storage and cleaning difficulties in the silo, and improves production efficiency.
Smart Images
Figure CN224116405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete component manufacturing technology, specifically to a fine aggregate concrete placing machine. Background Technology
[0002] Precast concrete components are one of the most common structural forms in modern architecture. Their manufacturing methods mostly involve concrete mixing, transportation, placement into molds or formwork, and curing.
[0003] In existing production equipment, mixing, transfer, and concrete placement all require the coordinated operation of different mechanical devices. For example, concrete is mixed and proportioned at a batching plant, then transported to molds or formwork using cranes-hoppers or torpedo containers, and finally poured using a concrete placing boom. The entire process involves numerous pieces of equipment, is cumbersome, and cannot achieve rapid concrete placement. Utility Model Content
[0004] The purpose of this invention is to provide a fine aggregate concrete placing machine that can realize concrete mixing, rapid placement of concrete into concrete component molds, reduce material storage in the silo, and facilitate silo cleaning.
[0005] The present invention adopts the following technical solution:
[0006] A fine aggregate concrete placing boom includes a traveling mechanism and a placing hopper mounted on the traveling mechanism; the traveling mechanism and the placing hopper are fixedly connected by a weighing device.
[0007] The walking mechanism includes a rectangular frame; the bottom of the frame is provided with track wheels, and the side of the frame is provided with a walking motor for driving the track wheels;
[0008] The material hopper includes a hopper body; a fixing frame is provided on the upper outer side of the hopper body; the bottom of the fixing frame is fixed to the frame by a weighing device; a stirring mechanism is provided in the middle of the hopper body; a discharge bin is provided at the bottom of the hopper body, a screw is provided in the discharge bin, and a discharge motor and a discharge gate for driving the screw are provided opposite to each other on the outer side of the discharge bin; the discharge gate is opened and closed by an opening mechanism.
[0009] There are four track wheels, which are distributed at the four top corners of the frame.
[0010] The two opposing track wheels are coaxially arranged.
[0011] The stirring mechanism includes a stirring shaft passing through the hopper body and a stirring paddle mounted on the stirring shaft; a stirring motor for driving the stirring shaft is provided on the outside of the hopper body.
[0012] The door opening mechanism includes a support plate fixedly connected to the discharge hopper, two parallel triangular connecting plates, and a pneumatic telescopic rod; one side of each of the two connecting plates is fixedly connected to the outside of the discharge door; one apex of each of the two connecting plates is hinged to the support plate via a first rotating shaft, and the other apex is hinged to the piston of the pneumatic telescopic rod via a second rotating shaft; the cylinder of the pneumatic telescopic rod is hinged to the side wall of the hopper.
[0013] A vibration motor is also fixedly installed on the outside of the bucket body.
[0014] The weighing device is an S-type weighing sensor.
[0015] The frame has three or more fabric hoppers arranged in parallel.
[0016] Ultrasonic ranging sensors are respectively installed at the front and rear ends of the frame along the track running direction.
[0017] The beneficial effects of this invention are as follows: This invention is suitable for high-performance fine aggregate concrete with high viscosity, good fluidity, and no coarse aggregate. The placing hopper adopts a V-shaped funnel with its side walls inclined upward at a 30° angle. It is equipped with a stirring shaft and a weighing system, allowing for direct concrete batching within the placing hopper. The side-opening discharge method, using a auger feeding shaft structure, enables rapid material distribution into multiple concrete component molds, reducing material storage in the silo and facilitating silo cleaning. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 for Figure 1 A schematic diagram of the left-side view structure.
[0020] Figure 3 for Figure 1 A top-view structural diagram.
[0021] Figure 4 This is a three-dimensional structural diagram of the present invention.
[0022] The components include: 1. Weighing device; 2. Frame; 3. Track wheel; 4. Walking motor; 5. Bucket body; 6. Fixing frame; 7. Discharge bin; 8. Screw; 9. Discharge motor; 10. Discharge door; 11. Stirring shaft; 12. Stirring paddle; 13. Stirring motor; 14. Support plate; 15. Connecting plate; 16. Pneumatic telescopic rod; 17. First rotating shaft; 18. Second rotating shaft; 19. Vibration motor; and 20. Ultrasonic ranging sensor. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0024] like Figures 1-4 As shown, a fine aggregate concrete placing boom includes a traveling mechanism and a placing hopper mounted on the traveling mechanism; the traveling mechanism and the placing hopper are fixedly connected by a weighing device 1. Depending on the site and production efficiency requirements, multiple placing hoppers can be set on the traveling mechanism; the attached figure shows an example of three placing hoppers on one traveling mechanism. Preferably, the weighing device 1 is an S-type load cell.
[0025] The traveling mechanism includes a rectangular frame 2; the bottom of the frame 2 is provided with track wheels 3, and the side of the frame 2 is provided with a traveling motor 4 for driving the track wheels 3. Preferably, there are four track wheels 3, distributed at the four apex corners of the frame 2, with two opposite track wheels 3 coaxially arranged. In actual use, the traveling motor can drive one set of track wheels, and the other set can serve as driven wheels, reducing the overall weight of the equipment. The traveling mechanism, in conjunction with the track, is suitable for situations where the distance is long or the production process involves a fixed mold table, reducing material transportation links.
[0026] The frame 2 is equipped with ultrasonic ranging sensors 20 at both ends along the track travel direction to detect obstacles. The walking motor can be connected to the PCL controller together with the ultrasonic ranging sensors to ensure that the walking mechanism stops the walking motor in time when it encounters an obstacle during track travel, thus achieving automatic stopping.
[0027] The concrete hopper includes a hopper body 5; a fixing frame 6 is provided on the upper outer side of the hopper body 5; the bottom of the fixing frame 6 is fixed to the frame 2 by four weighing devices 1; a stirring mechanism is provided in the middle of the hopper body 5; a discharge chamber 7 is provided at the bottom of the hopper body 5, a screw 8 is provided inside the discharge chamber 7, and a discharge motor 9 for driving the screw 8 and a discharge gate 10 are provided opposite to each other on the outer side of the discharge chamber 7; the discharge gate 10 is opened and closed by an opening mechanism. The concrete hopper adopts a V-shaped funnel design with a side wall inclination angle of 30°, which is suitable for various concrete slumps. A vibration motor 19 is also fixedly provided on the outer side of the hopper body 5, which can make the hopper vibrate evenly, resulting in good material discharge effect and quick cleaning during cleaning.
[0028] The stirring mechanism includes a stirring shaft 11 inserted inside the hopper 5 and a stirring paddle 12 disposed on the stirring shaft 11; a stirring motor 13 for driving the stirring shaft 11 is disposed on the outside of the hopper 5.
[0029] The door opening mechanism includes a support plate 14 fixedly connected to the discharge hopper 7, two parallel triangular connecting plates 15, and a pneumatic telescopic rod 16. One side of each of the two connecting plates 15 is fixedly connected to the outside of the discharge door 10. One apex of each connecting plate 15 is hinged to the support plate 14 via a first rotating shaft 17, and the other apex is hinged to the piston of the pneumatic telescopic rod 16 via a second rotating shaft 18. The cylinder of the pneumatic telescopic rod 16 is hinged to the side wall of the hopper 5. Preferably, each discharge hopper is equipped with two sets of discharge motors and screws. Each screw corresponds to a discharge door and the door opening structure that drives the discharge door. The two sets of mechanisms can work simultaneously or independently, and can be adjusted according to the discharge volume to ensure normal door opening.
[0030] The aforementioned walking motor, weighing device, discharge motor, stirring motor, vibration motor, and ultrasonic ranging sensor can all be connected to the PCL controller for unified and coordinated control, enabling batching and mixing with uniform, quantitative, and rapid material distribution.
Claims
1. A fine aggregate concrete placing boom, characterized in that, It includes a walking mechanism and a fabric hopper mounted on the walking mechanism; the walking mechanism and the fabric hopper are fixedly connected by a weighing device (1); The walking mechanism includes a rectangular frame (2); a track wheel (3) is provided at the bottom of the frame (2), and a walking motor (4) for driving the track wheel (3) is provided on the side of the frame (2). The fabric hopper includes a hopper body (5); a fixing frame (6) is provided on the upper outer side of the hopper body (5); the bottom of the fixing frame (6) is fixed to the frame (2) by a weighing device (1); a stirring mechanism is provided in the middle of the hopper body (5); a discharge chamber (7) is provided at the bottom of the hopper body (5), a screw (8) is provided inside the discharge chamber (7), and a discharge motor (9) for driving the screw (8) and a discharge door (10) are provided opposite to each other on the outer side of the discharge chamber (7); the discharge door (10) is opened and closed by an opening mechanism.
2. The fine aggregate concrete placing machine according to claim 1, characterized in that, There are four track wheels (3), which are distributed at the four apex corners of the frame (2).
3. The fine aggregate concrete placing machine according to claim 2, characterized in that, The two opposing track wheels (3) are set coaxially.
4. The fine aggregate concrete placing machine according to claim 1, characterized in that, The stirring mechanism includes a stirring shaft (11) inserted inside the bucket (5) and a stirring paddle (12) disposed on the stirring shaft (11); a stirring motor (13) for driving the stirring shaft (11) is disposed on the outside of the bucket (5).
5. The fine aggregate concrete placing machine according to claim 1, characterized in that, The door opening mechanism includes a support plate (14) fixedly connected to the discharge hopper (7), two parallel triangular connecting plates (15), and a pneumatic telescopic rod (16); one side of each of the two connecting plates (15) is fixedly connected to the outside of the discharge door (10); one apex of each of the two connecting plates (15) is hinged to the support plate (14) via a first rotating shaft (17), and the other apex is hinged to the piston of the pneumatic telescopic rod (16) via a second rotating shaft (18); the cylinder of the pneumatic telescopic rod (16) is hinged to the side wall of the bucket body (5).
6. The fine aggregate concrete placing machine according to claim 1, characterized in that, A vibration motor (19) is also fixedly installed on the outside of the bucket body (5).
7. The fine aggregate concrete placing machine according to claim 1, characterized in that, The weighing device (1) is an S-type weighing sensor.
8. The fine aggregate concrete placing machine according to claim 1, characterized in that, More than three cloth hoppers are arranged in parallel on the frame (2).
9. The fine aggregate concrete placing machine according to claim 1, characterized in that, The frame (2) is equipped with ultrasonic ranging sensors (20) at both ends along the track running direction.