Multi-point pouring distributor for concrete wind power tower drum

Abstract

The utility model discloses a multi-point pouring distributor for a concrete wind power tower drum, which comprises a distributing groove, a plurality of connecting rods, a plurality of connecting rods, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods, the upper end part of the bracket is fixed on the bottom surface of the distributing groove; the upper end part of the feeding pipe is rotationally connected with the material distributing groove, a material receiving opening corresponding to the discharging opening is formed in the upper end part of the feeding pipe, a discharging opening is formed in the lower end part of the feeding pipe, and the material receiving opening is located below the discharging opening; the distributor connecting ring is located below the distributing groove and is coaxial with the distributing groove; the supporting rods are in one-to-one correspondence with the feeding pipes, and the two ends of each supporting rod are rotationally connected to the outer side wall of the distributor connecting ring and the outer side wall of the corresponding feeding pipe correspondingly; and the driving mechanism is used for driving the distributor connecting ring to move up and down along the axis of the distributing groove. According to the utility model, the input concrete is distributed to the periphery through the inner ring part, and then the concrete is conveyed to a plurality of pouring points through the plurality of feeding pipes, so that the multi-point pouring is realized, and the quality of the concrete tower drum is obviously improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for concrete wind turbine tower pouring, and specifically relates to a multi-point pouring material distribution device for concrete wind turbine towers. Background Technology

[0002] With the development of wind power generation, the demand for concrete towers will continue to increase. Concrete tower mold design typically considers the need for prestressed steel reinforcement, incorporating multiple vertical corrugated pipes within the tower. Due to the constraints of the reinforcing cage, it is difficult to insert the discharge pipe to the pouring surface, and the numerous transverse reinforcing bars, coupled with the obstruction of the corrugated pipes, further hinder the movement of the discharge pipe. Even when pouring at the top, it is difficult to align the discharge pipe with the pouring opening, so pouring is usually done at a single point, followed by compaction with a tamper. The numerous corrugated pipes within the tower increase the flow resistance of the concrete, making it difficult for the concrete to flow to other locations. Pouring at a single point results in a high material flow rate, and the high-speed descent of the concrete introduces a large amount of air, causing surface quality issues with the segments. Furthermore, during concrete flow, steel fibers align with the flow direction, resulting in a higher number of horizontal steel fibers and a decrease in the axial tensile strength of the tower concrete. Because of the significant transverse flow of concrete within the mold, manual acceleration is required, leading to high labor intensity, frequent interruptions in pouring due to material accumulation, and low production efficiency.

[0003] Current casting methods cannot guarantee the quality of the tower, necessitating multi-point uniform casting. However, achieving multi-point uniform casting is practically difficult. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-point pouring material distributor for concrete wind turbine towers, which simultaneously distributes concrete to different locations to achieve uniform pouring at multiple points.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-point pouring material distribution device for concrete wind turbine towers, comprising:

[0006] The material distribution trough is divided into an inner ring section and an outer ring section surrounding the outer periphery of the inner ring section. The outer ring section has several discharge ports that are vertically or laterally open.

[0007] The bracket has its upper end fixed to the bottom surface of the material distribution trough and located on the lower end surface of the inner ring portion;

[0008] The feeding pipe has several parts arranged in a ring around the axis of the distribution trough. Its upper end is rotatably connected to the distribution trough by a rotating bolt installed on the outer ring. The upper end of the feeding pipe is provided with a receiving port corresponding to the discharge port, and its lower end is provided with a discharge port for delivering concrete to the required position. The receiving port is located below the discharge port.

[0009] The feeder connecting ring is located below the feed trough and is coaxially arranged with the feed trough;

[0010] Support rods, each corresponding to a feeding pipe, with both ends of each support rod rotatably connected to the outer wall of the distributor connecting ring and the outer wall of the corresponding feeding pipe.

[0011] A drive mechanism is used to drive the feeder connecting ring to move up and down along the axis of the feed trough, thereby causing the feed pipe to swing outward or retract inward.

[0012] In another embodiment, the driving mechanism includes a servo motor, a lead screw that is driven by the servo motor and coaxially arranged with the distributing trough, and a nut that is threaded onto the lead screw. The nut is fixedly connected to the distributor connecting ring. The servo motor drives the lead screw to rotate, thereby driving the nut to move up and down along the lead screw, thereby driving the feeding tube to swing outward or retract inward.

[0013] In another embodiment, the projection of the receiving port on the horizontal plane always covers the projection of the unloading port on the horizontal plane.

[0014] In another embodiment, the bracket has a base at its bottom.

[0015] In another embodiment, a vibrator for accelerating the sliding of fluid concrete is provided on the outer wall of the lower end of the feeding pipe.

[0016] In another embodiment, the connection between the support rod and the feed pipe is higher than the connection between the vibrator and the feed pipe.

[0017] In another embodiment, the vibration time of the vibrator is 5 to 10 seconds, and the vibration frequency of the vibrator is greater than 0 Hz and not greater than 50 Hz.

[0018] In another embodiment, the inner ring portion is conical with a high center and low perimeter, extending to the discharge port.

[0019] In another embodiment, the feed tubes are evenly distributed around the inner ring portion.

[0020] In another embodiment, the brackets are evenly distributed below the inner ring portion, and the base is fixed to the mold of the power tower by bolts.

[0021] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: 1. This utility model distributes the input concrete to the surrounding area through the inner ring part, and then delivers the concrete to multiple pouring points through multiple feeding pipes, realizing multi-point pouring and significantly improving the quality of the concrete tower; 2. Since the pouring process is automatic material distribution, the pouring efficiency is improved and the labor cost is reduced; 3. After realizing multi-point uniform pouring, the concrete flow distance is significantly shortened, which can reduce the requirements for concrete fluidity and reduce concrete cost. Attached Figure Description

[0022] Figure 1 This is a front view of the concrete distributor of the present invention.

[0023] Figure 2 This is a top view of the concrete distributor of the present invention.

[0024] 1-Feeding pipe, 2-Rotating bolt, 3-Discharge port, 4-Support rod, 5-Vibrator, 6-Distributor connecting ring, 7-Thread nut, 8-Bracket, 9-Base, 10-Distribution trough, 11-Inlet port, 12-Outlet port, 13-Servo motor, 14-Thread screw, 101-Inner ring, 102-Outer ring. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0026] The concrete wind turbine tower multi-point casting material distributor includes: material distribution trough 10, support 8, feeding pipe 1, material distributor connecting ring 6, support rod 4, drive mechanism, vibrator 5, and base 9 located at the bottom of support 8.

[0027] Specifically:

[0028] The material distribution trough 10 is divided into an inner ring portion 101 and an outer ring portion 102 surrounding the outer periphery of the inner ring portion 101. The outer ring portion 102 has several discharge ports 3 that are vertically or laterally open. The inner ring portion 101 is conical with a high center and low periphery and extends to the discharge ports 3.

[0029] The upper end of the bracket 8 is fixed to the bottom surface of the material distribution trough 10 and located on the lower end surface of the inner ring portion 101. The brackets 8 are evenly distributed below the inner ring portion 101, and the base 9 is fixed to the mold of the electric tower cylinder by bolts.

[0030] The feeding pipe 1 has several pipes and is evenly distributed in a ring around the axis of the distribution trough 10. Its upper end is rotatably connected to the distribution trough 10 through a rotating bolt 2 installed on the outer ring part 102. The upper end of the feeding pipe 1 is provided with a receiving port 11 corresponding to the discharge port 3, and its lower end is provided with a discharge port 12 for delivering concrete to the required position. The receiving port 11 is located below the discharge port 3. In the corresponding receiving port 11 and discharge port 3, the projection of the receiving port 11 on the horizontal plane always covers the projection of the discharge port 3 on the horizontal plane.

[0031] The feeder connecting ring 6 is located below the feed trough 10 and is coaxially arranged with the feed trough 10;

[0032] The support rod 4 corresponds one-to-one with the feeding pipe 1, and the two ends of each support rod 4 are respectively rotatably connected to the outer wall of the distributor connecting ring 6 and the outer wall of the corresponding feeding pipe 1.

[0033] The drive mechanism is used to drive the distributor connecting ring 6 to move up and down along the axis of the distributor trough 10, thereby driving the feeding pipe 1 to swing outward or retract inward; it includes a servo motor 13, a lead screw 14 that is driven and connected to the servo motor 13 and is coaxially arranged with the distributor trough 10, and a nut 7 that is threaded onto the lead screw 14. The nut 7 is fixedly connected to the distributor connecting ring 6. The servo motor 13 drives the lead screw 14 to rotate, thereby driving the nut 7 to move up and down along the lead screw 14, thereby driving the feeding pipe 1 to swing outward or retract inward.

[0034] The vibrator 5 is located on the outer wall of the lower end of the feeding pipe 1 and is used to accelerate the sliding of fluid concrete; the connection between the support rod 4 and the feeding pipe 1 is higher than the connection between the vibrator 5 and the feeding pipe 1; the single vibration time of the vibrator 5 is 5 to 10 seconds, and the vibration frequency of the vibrator 5 is greater than 0 Hz and not greater than 50 Hz.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-point pouring material distribution device for concrete wind turbine towers, characterized in that it The utility model relates to a kind of concrete distribution device, including: Distribution chute, which is divided into an inner ring portion and an outer ring portion arranged around the outer periphery of the inner ring portion, the outer ring portion is provided with a plurality of upward or lateral opening discharge ports; Support, the upper end of which is fixed to the bottom surface of the distribution chute and located on the lower end surface of the inner ring portion; A plurality of feeding pipes are arranged in a ring around the axis of the distribution chute, the upper end of each feeding pipe is rotatably connected to the distribution chute by a rotating bolt mounted on the outer ring portion, the upper end of each feeding pipe is provided with a receiving port corresponding to the discharge port, and the lower end of each feeding pipe is provided with a discharge port, the receiving port is located below the discharge port; A distributor connecting ring is located below the distribution chute and coaxially arranged with the distribution chute; A support rod corresponding to each feeding pipe is rotatably connected to the outer side wall of the distributor connecting ring and the outer side wall of the corresponding feeding pipe at both ends of the support rod; A driving mechanism is used to drive the distributor connecting ring to move up and down along the axis of the distribution chute.

2. The concrete wind turbine tower multi-point placement distributor of claim 1, wherein: The driving mechanism includes a servo motor, a lead screw drivingly connected to the servo motor and coaxially arranged with the distribution chute, and a nut threadedly connected to the lead screw, the nut is fixedly connected to the distributor connecting ring, the servo motor drives the lead screw to rotate, and in turn drives the nut to move up and down along the lead screw, and further drives the feeding pipe to swing outward or contract inward.

3. The concrete wind turbine tower multi-point placement distributor of claim 1, wherein: Among the corresponding receiving ports and discharge ports, the projection of the receiving port on the horizontal plane always covers the projection of the discharge port on the horizontal plane.

4. The concrete wind turbine tower multi-point placement distributor of claim 1, wherein: The bottom of the support is provided with a base.

5. The concrete wind turbine tower multi-point placement distributor of claim 1, wherein: The outer side wall of the lower end of the feeding pipe is provided with a vibrator for accelerating the sliding of fluid concrete.

6. The concrete wind turbine tower multi-point placement distributor of claim 5, wherein: The connection between the support rod and the feeding pipe is higher than the connection between the vibrator and the feeding pipe.

7. The concrete wind turbine tower multi-point placement distributor of claim 5, wherein: The single vibration time of the vibrator is 5-10s, and the vibration frequency of the vibrator is greater than 0Hz and not greater than 50Hz.

8. The concrete wind turbine tower multi-point placement distributor of claim 1, wherein: The inner ring portion is conical, with a high middle and a low periphery, and extends to the discharge port.

9. The concrete wind turbine tower multi-point placement distributor of claim 1, wherein: The feeding pipes are uniformly distributed around the inner ring portion.

10. The concrete wind turbine tower multi-point placement distributor of claim 4, wherein: The supports are uniformly distributed below the inner ring portion, and the base is fixed in the mold of the electric tower cylinder by bolts.

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