A wind turbine foundation concrete pouring device

Abstract

This utility model discloses a concrete pouring device for wind turbine foundations in a wind farm, including an inclined chute body and an auxiliary component mounted above it. The auxiliary component is fixed to the outside of the chute body by a support plate. A threaded rod driven by a motor moves a threaded sleeve back and forth. The bottom of the threaded sleeve is connected to an installation plate and equipped with a sensor and an electric actuator. The electric actuator is connected to an installation strip through a stabilizing bracket. The bottom of the installation strip is equipped with a locking mechanism with a spring, which automatically engages through the cooperation of a rhomboid block and a hemispherical block. The device achieves automatic vibration through the coordinated control of the sensor and the electric actuator. A double-spring locking mechanism ensures load balance during unilateral displacement. The modular design facilitates maintenance. Compared with the prior art, it has the advantages of high automation, good vibration effect, and strong structural stability, which can effectively improve the quality of concrete pouring and construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring technology, specifically to a concrete pouring device for wind turbine foundations in wind farms. Background Technology

[0002] In the large-volume concrete pouring of wind turbine foundations in wind farms, in addition to closed pumping pipeline systems, another common open concrete conveying channel is called a chute system. Made of high-strength aluminum alloy or galvanized steel plate, with a U-shaped cross section (width 400-600mm) and a single section length of 1.5-3m, it is connected by quick snap-fit. The concrete is unloaded from the mixer truck into the buffer hopper, and after the oversized aggregate is filtered by the vibrating screen, it enters the main body of the chute. The concrete slides down the main body of the chute under the action of gravity. Compared to closed-loop pumping, this feeding method requires utilizing the fluid properties of concrete. Concrete mixed with air has higher viscosity, resulting in slower conveying and lower efficiency. Furthermore, the structural characteristics of the chute itself can lead to flow rate differences, which in turn slows down the flow rate. Even though the material and manufacturing processes of the chute have effectively improved this problem, short-term stagnation can still occur, affecting efficiency.

[0003] A concrete pouring device for wind turbine foundations in wind farms is proposed to address the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete pouring device for wind turbine foundations in wind farms, in order to solve the problems mentioned in the background art. Compared with closed pumping, chute feeding requires the use of the fluid properties of concrete. However, concrete mixed with air has a higher viscosity, which makes the conveying slower and less efficient. Furthermore, due to the structural characteristics of the chute itself, flow rate differences will occur, resulting in a slowdown in flow rate. Even if the material and process of the chute have effectively improved this problem, there will still be short-term stagnation, which affects efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete pouring device for wind turbine foundations in a wind farm, comprising a chute body, wherein a plurality of reinforcing strips are fixedly connected to the top of the chute body; An auxiliary component is provided above the main body of the chute. The auxiliary component includes several support plates. The bottom end of the support plate is fixed to the outside of the main body of the chute. A fixing strip is fixedly connected to the top end of the support plate. A threaded rod is rotatably connected inside the fixing strip. A first motor is fixedly connected to the outside of one end of the fixing strip. A threaded sleeve is slidably sleeved on the outside of the threaded rod. The bottom of the threaded sleeve is fixedly connected to a sliding block, the bottom end of the sliding block is fixedly connected to a mounting plate, the bottom surface of the mounting plate is fixedly connected to three sensor signal transmitters, the three sensor signal transmitters are distributed on the left, center and right, an electric push rod is provided between two adjacent sensor signal transmitters, a wrapping ring is fixedly connected to the outside of the electric push rod, a stabilizing bracket is fixedly connected to the outside of the wrapping ring, an installation strip is fixedly connected to the output end of the stabilizing bracket, a connecting column is symmetrically fixedly connected to the bottom end of the installation strip, and a first spring, a rhombus block and a hemispherical block are arranged sequentially from top to bottom on the outside of the connecting column; The connecting post is inserted with a locking sleeve. The locking sleeve has symmetrically opened side cavities. A guide post is fixedly installed inside the side cavity. A trapezoidal post is slidably sleeved at one end of the guide post near the middle of the locking sleeve. A second spring is sleeved on the outside of the guide post. The second spring is engaged with the hemispherical block. The bottom end of the locking sleeve is fixedly connected to the same intermediate plate, and a vibrating rod is installed on the bottom surface of the mounting strip.

[0006] Preferably, the output end of the first motor extends into the fixing bar and is fixedly connected to the threaded rod, the sliding block is slidably connected to the bottom of the fixing bar, and the top ends of the stabilizing bracket and the electric push rod are both fixedly connected to the mounting plate.

[0007] Preferably, the top end of the first spring is fixedly connected to the outside of the connecting post, the bottom end of the first spring is fixedly connected to the top end of the rhombus block, and the rhombus block is slidably sleeved on the outside of the connecting post.

[0008] Preferably, the hemispherical block has a diamond-shaped groove on the side near the diamond block, and the lower half of the diamond block is seamlessly fitted and connected to the diamond-shaped groove.

[0009] Preferably, the guide post slides into the interior of the trapezoidal post, one end of the second spring is fixedly connected to the trapezoidal post, and the other end of the second spring is fixed to the outside of the guide post.

[0010] Preferably, the trapezoidal column can be fitted to the outer side of the upper surface of the rhombus block.

[0011] Preferably, the bottom end of the mounting strip is symmetrically fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a fixing sleeve, the inside of the fixing sleeve is fixedly connected to a shock-absorbing pad, the middle of the shock-absorbing pad is fixedly connected to a vibrating rod, and the vibrating rod is located inside the chute body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the vibrator rod of this wind turbine foundation concrete pouring device, which is located entirely in the concrete, can significantly improve the concrete vibration efficiency and reduce the risk of deceleration or stagnation. The specific details are as follows: 1. A first motor drives a threaded rod, which in turn moves the threaded sleeve and vibrator reciprocally, enabling automatic vibration of the concrete within the chute body. This reduces manual intervention and improves pouring efficiency. Simultaneously, a sensor signal transmitter and receiver work together to control the extension and retraction of the electric actuator, ensuring precise engagement and disengagement of the hemispherical block and trapezoidal column, and guaranteeing stable switching of the vibrator during movement. Furthermore, the tight fit between the rhomboid block and the locking sleeve, along with the dynamic reset design of the trapezoidal column, effectively prevents the intermediate plate from swaying, ensures balanced load on one side, and enhances structural stability. The vibrator, positioned entirely within the concrete, significantly improves concrete vibration efficiency and reduces the risk of deceleration or stalling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a schematic diagram of the front cross-section structure of this utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the side structure of the fixing sleeve; Figure 5 This is a schematic diagram of the intermediate plate.

[0014] In the diagram: 1. Chute body; 101. Reinforcing strip; 2. Auxiliary components; 201. Support plate; 202. Fixing strip; 203. First motor; 204. Threaded rod; 205. Threaded sleeve; 206. Sliding block; 207. Mounting plate; 208. Electric actuator; 209. Wrapping ring; 210. Stabilizing bracket; 211. Mounting strip; 212. Connecting column; 213. First spring; 214. Rhomboid block; 215. Hemispherical block; 216. Locking sleeve; 217. Side cavity; 218. Guide column; 219. Trapezoidal column; 220. Second spring; 221. Intermediate plate; 222. Connecting block; 223. Fixing sleeve; 224. Vibrator; 225. Shock absorber; 226. Sensor signal transmitter; 227. Signal receiver. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5This utility model provides a technical solution: a concrete pouring device for wind turbine foundations in a wind farm, comprising a chute body 1, with a plurality of reinforcing strips 101 fixedly connected to the top of the chute body 1. The chute body 1 is designed with an inclined angle matching the concrete flow requirements. The reinforcing strips 101 are evenly distributed along the length of the chute and fixed by bolts to enhance the structural strength of the chute body 1.

[0017] An auxiliary component 2 is provided above the chute body 1. The auxiliary component 2 includes several support plates 201. The bottom end of the support plate 201 is fixed to the outside of the chute body 1, and the top end of the support plate 201 is fixedly connected to a fixing strip 202. A threaded rod 204 is rotatably connected inside the fixing strip 202. A first motor 203 is fixedly connected to the outside of one end of the fixing strip 202. A threaded sleeve 205 is slidably sleeved on the outside of the threaded rod 204. The support plates 201 are symmetrically distributed on both sides of the chute body 1 to form a stable support frame. The first motor 203 is coaxially connected to the threaded rod 204 through a coupling, driving the threaded rod 204 to rotate forward and backward.

[0018] A sliding block 206 is fixedly connected to the bottom of the threaded sleeve 205. A mounting plate 207 is fixedly connected to the bottom end of the sliding block 206. Three sensor signal transmitters 226 are fixedly connected to the bottom surface of the mounting plate 207. The three sensor signal transmitters 226 are distributed from left to right, and an electric actuator 208 is provided between two adjacent sensor signal transmitters 226. The sensor signal transmitters 226 are electrically connected to an external control module for real-time detection of the position of the vibrator 224.

[0019] An outer wrapping ring 209 is fixedly connected to the outer side of the electric actuator 208. A stabilizing bracket 210 is fixedly connected to the outer side of the wrapping ring 209. An installation strip 211 is fixedly connected to the output end of the stabilizing bracket 210. A connecting post 212 is symmetrically fixedly connected to the bottom end of the installation strip 211. A first spring 213, a rhomboid block 214, and a hemispherical block 215 are arranged sequentially from top to bottom on the outside of the connecting post 212. The wrapping ring 209 is made of flexible rubber material to cover the electric actuator 208. The stabilizing bracket 210 is a rigid metal frame and is fixed to the mounting plate 207 by bolts.

[0020] A locking sleeve 216 is inserted into the connecting post 212. The locking sleeve 216 has symmetrically formed side cavities 217. A guide post 218 is fixedly installed inside the side cavity 217. A trapezoidal post 219 is slidably sleeved onto one end of the guide post 218 near the middle of the locking sleeve 216. A second spring 220 is sleeved on the outside of the guide post 218, and the second spring 220 engages with the hemispherical block 215. The width of the side cavity 217 matches the sliding stroke of the trapezoidal post 219; the second spring 220 provides a restoring force for the trapezoidal post 219.

[0021] The bottom end of the locking sleeve 216 is fixedly connected to the same intermediate plate 221, and the bottom surface of the mounting strip 211 is equipped with a vibrating rod 224; the intermediate plate 221 is a high-strength steel plate, which is fixed to the locking sleeve 216 by welding. The output end of the first motor 203 extends into the fixing strip 202 and is fixedly connected to the threaded rod 204. The sliding block 206 is slidably connected to the bottom of the fixing strip 202. The top ends of the stabilizing bracket 210 and the electric push rod 208 are both fixedly connected to the mounting plate 207. A nylon slide rail is provided at the sliding connection between the sliding block 206 and the fixing strip 202.

[0022] The top end of the first spring 213 is fixedly connected to the outside of the connecting post 212, and the bottom end of the first spring 213 is fixedly connected to the top end of the rhombus block 214. The rhombus block 214 is slidably sleeved on the outside of the connecting post 212. The first spring 213 ensures that the rhombus block 214 and the hemispherical block 215 maintain a distance from each other under normal conditions.

[0023] A rhomboid groove is formed on the side of the hemispherical block 215 near the rhomboid block 214, and the lower half of the rhomboid block 214 is seamlessly fitted into the rhomboid groove. The inclination angle of the rhomboid groove matches the inclined surface of the rhomboid block 214, forming an unlocking structure.

[0024] The guide post 218 slides into the trapezoidal post 219. One end of the second spring 220 is fixedly connected to the trapezoidal post 219, and the other end of the second spring 220 is fixed to the outside of the guide post 218. The preload of the second spring 220 is greater than the lateral impact force of the concrete flow on the intermediate plate 221, so that the position of the trapezoidal post 219 can always be kept within the range of engagement with the hemispherical block 215.

[0025] The trapezoidal column 219 can be attached to the outer side of the upper surface of the rhombus block 214; the attachment surface of the trapezoidal column 219 is designed to be inclined, and an outward component force is generated when it comes into contact with the rhombus block 214.

[0026] A connecting block 222 is symmetrically fixedly connected to the bottom end of the mounting strip 211. A fixing sleeve 223 is fixedly connected to one side of the connecting block 222. A shock-absorbing pad 225 is fixedly connected inside the fixing sleeve 223. A vibrating rod 224 is fixedly connected to the middle of the shock-absorbing pad 225. The vibrating rod 224 is located inside the chute body 1.

[0027] Working principle: Before using this wind farm turbine foundation concrete pouring device, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, firstly, with the chute body 1 placed at an angle, the support plate 201 and the fixing strip 202 are assembled with the chute body 1 using bolts. Then, the first motor 203 is started to rotate the threaded rod 204, which causes the threaded sleeve 205 to drive the sliding block 206 to slide at the bottom of the fixing strip 202, thereby causing the mounting plate 207 to drive the electric push rod 208 to move. When the sensor signal transmitter 226 on the left side senses a signal receiver 227, the electric push rod 208 on the left side is activated. The electric actuator 208 on the left first extends and then shortens, the hemispherical block 215 disengages from the trapezoidal column 219 and is pulled out from the locking sleeve 216 until the hemispherical block 215 is higher than the reinforcing strip 101, thus achieving the avoidance. Then the threaded sleeve 205 continues to move, allowing the reinforcing strip 101 to move between the two electric actuators 208. Furthermore, when the sensor signal transmitter 226 in the middle position senses the same signal receiver 227, the electric actuator 208 on the left pushes the connecting column 212 to insert into the locking sleeve 216 again, and allows the hemispherical block 215 to re-engage with the trapezoidal column 219. At the same time, the trapezoidal column 219 on the right first extends and then shortens, allowing the hemispherical block 215 on the right to be pulled out from the locking sleeve 216. As the middle plate 221 continues to move, the vibrator 224 remains inserted into the concrete in the chute body 1 and moves from the right side of the reinforcing strip 101 to the left side. The working process is the same when the vibrator 224 moves from the left side to the right side of the reinforcing strip 101; during the movement of the threaded sleeve 205, the vibrator 224 can not only vibrate the concrete flowing through the chute body 1, reducing the subsequent vibration time and increasing work efficiency, but also the vibration generated by the vibration can promote the flow of concrete and increase the pouring efficiency. At the same time, the vibration can also prevent the concrete in the chute body 1 from stopping or the flow rate from being abnormally slow.

[0028] When the threaded sleeve 205 moves to the end of the threaded rod 204, the first motor 203 automatically reverses. When the electric actuator 208 extends, the rhombus block 214 presses the trapezoidal column 219 to slide, moving from above the rhombus block 214 to below the trapezoidal column 219. Then, when the electric actuator 208 shortens, the trapezoidal column 219 presses the top of the rhombus block 214, causing the rhombus block 214 to slide with the connecting column 212 until the lower half of the rhombus block 214 is embedded in the rhombus groove in the hemispherical block 215, which is moving upward with the connecting column 212. At this time, the hemispherical block 215 and the rhombus block 214 fit seamlessly. As the hemispherical block 215 continues to move upward, the rhombus block 214 also moves upward. During the upward movement of the rhombus block 214, the trapezoidal column 219 will slide into the side cavity 217 due to compression to avoid displacement. Finally, the hemispherical block 215 and the connecting column 212 can be pulled out from the locking sleeve 216 and moved above the reinforcing strip 101 to avoid displacement. After a connecting post 212 is positioned, the hemispherical block 215 is reinserted into the locking sleeve 216 and squeezes the trapezoidal post 219 to move laterally inside the side cavity 217. The trapezoidal post 219 is then reset under the push of the guide post 218, causing the trapezoidal post 219 to jam the hemispherical block 215, preventing the hemispherical block 215 from being pulled out of the locking sleeve 216. This effectively suspends the intermediate plate 221 and shares the load of the single-sided electric push rod 208. Furthermore, both the hemispherical block 215 and the rhomboid block 214 are in contact with the inner wall of the locking sleeve 216. After the connecting post 212 on one side is pulled out of the locking sleeve 216, the intermediate plate 221 will not shake excessively, thus affecting the docking of the other pair of connecting posts 212 with the locking sleeve 216. The second spring 220 keeps the rhomboid block 214 and the hemispherical block 215 at a distance under normal conditions, accommodating the trapezoidal column 219.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete pouring device for wind turbine foundation in a wind farm, comprising a chute body (1), wherein a plurality of reinforcing strips (101) are fixedly connected to the top of the chute body (1); Its features are, Also includes: An auxiliary component (2) is provided above the chute body (1). The auxiliary component (2) includes several support plates (201). The bottom end of the support plate (201) is fixed to the outside of the chute body (1). A fixing strip (202) is fixedly connected to the top end of the support plate (201). A threaded rod (204) is rotatably connected inside the fixing strip (202). A first motor (203) is fixedly connected to the outside of one end of the fixing strip (202). A threaded sleeve (205) is slidably sleeved on the outside of the threaded rod (204). Among them, the bottom of the threaded sleeve (205) is fixedly connected to a sliding block (206), the bottom end of the sliding block (206) is fixedly connected to a mounting plate (207), the bottom surface of the mounting plate (207) is fixedly connected to three sensor signal transmitters (226), the three sensor signal transmitters (226) are distributed in the left, center and right directions, an electric push rod (208) is provided between two adjacent sensor signal transmitters (226), a wrapping ring (209) is fixedly connected to the outside of the electric push rod (208), a stabilizing bracket (210) is fixedly connected to the outside of the wrapping ring (209), an installation strip (211) is fixedly connected to the output end of the stabilizing bracket (210), a connecting column (212) is symmetrically fixedly connected to the bottom end of the installation strip (211), and the outside of the connecting column (212) is provided with a first spring (213), a rhombus block (214) and a hemispherical block (215) from top to bottom; The connecting post (212) is inserted with a locking sleeve (216). The locking sleeve (216) has symmetrically opened side cavities (217). A guide post (218) is fixedly installed inside the side cavity (217). A trapezoidal post (219) is slidably sleeved on one end of the guide post (218) near the middle of the locking sleeve (216). A second spring (220) is sleeved on the outside of the guide post (218). The second spring (220) is engaged with the hemispherical block (215). The bottom end of the locking sleeve (216) is fixedly connected to the same intermediate plate (221), and the bottom surface of the mounting strip (211) is equipped with a vibrating rod (224).

2. The wind farm turbine foundation concrete pouring device according to claim 1, characterized in that: The output end of the first motor (203) extends into the fixing bar (202) and is fixedly connected to the threaded rod (204). The sliding block (206) is slidably connected to the bottom of the fixing bar (202). The top ends of the stabilizing bracket (210) and the electric push rod (208) are both fixedly connected to the mounting plate (207).

3. The wind farm turbine foundation concrete pouring device according to claim 1, characterized in that: The top end of the first spring (213) is fixedly connected to the outside of the connecting post (212), and the bottom end of the first spring (213) is fixedly connected to the top end of the rhombus block (214). The rhombus block (214) is slidably sleeved on the outside of the connecting post (212).

4. The wind farm turbine foundation concrete pouring device according to claim 1, characterized in that: The hemispherical block (215) has a rhomboid groove on the side near the rhomboid block (214), and the lower half of the rhomboid block (214) is seamlessly fitted and connected to the rhomboid groove.

5. A wind farm turbine foundation concrete pouring device according to claim 1, characterized in that: The guide post (218) slides into the trapezoidal post (219), one end of the second spring (220) is fixedly connected to the trapezoidal post (219), and the other end of the second spring (220) is fixed to the outside of the guide post (218).

6. The wind farm turbine foundation concrete pouring device according to claim 1, characterized in that: The trapezoidal column (219) can be attached to the outer side of the upper surface of the rhombus block (214).

7. A wind farm turbine foundation concrete pouring device according to claim 1, characterized in that: The bottom end of the mounting strip (211) is symmetrically fixedly connected to a connecting block (222), and a fixing sleeve (223) is fixedly connected to one side of the connecting block (222). A shock-absorbing pad (225) is fixedly connected inside the fixing sleeve (223), and a vibrating rod (224) is fixedly connected to the middle of the shock-absorbing pad (225). The vibrating rod (224) is located inside the chute body (1).

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