Automatic paint spraying device for wind turbine nacelle bumper

Abstract

The utility model relates to wind power generation equipment manufacturing technical field, concretely relates to automatic paint spraying device for wind driven generator cabin block, including the spraying mechanical arm of suspension type and its below conveying mechanism, is provided with the fender mechanism between both, the inner circumferential facade of fender mechanism is provided with the air suction hole array of intercommunication negative pressure system, the top of spraying mechanical arm is connected with the suspension platform, the suspension platform swing joint is in gantry, fender mechanism includes two cross -section is the blocking frame of 'F' shape of horizontal symmetry, two blocking frames are close or far away and move towards each other, set up one one -one -separated bearing seat on conveying mechanism, and two blocking frames can enclose bearing seat and move close, the utility model discloses realize the quick, even spraying of cabin block, can high -efficiently suck and remove the paint mist that scatters to the surroundings in the spraying process, reduces air pollution, and meets the requirement of green manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment manufacturing technology, and in particular to an automatic painting device for wind turbine nacelle blocks. Background Technology

[0002] In the production process of wind turbine nacelle blocks, the painting process is crucial for ensuring the corrosion resistance and aesthetics of the block surface. According to current technology, the blocks require painting after finishing, but this is mostly done manually. Manual painting has several drawbacks. First, due to the large size and complex structure of wind turbine nacelle blocks, manual operation makes it difficult to ensure uniform painting, easily leading to over-painting or missed areas, resulting in inconsistent corrosion resistance and affecting the block's service life. Second, manual painting is inefficient and cannot meet the growing demand for wind turbine nacelle blocks, increasing production costs. Furthermore, prolonged exposure to paint during manual painting poses health risks to operators, and simple mechanical spraying equipment lacks effective paint mist treatment, resulting in a harsh working environment and air pollution from paint mist diffusion. Therefore, it is necessary to provide an automated painting device that can improve painting quality and efficiency while reducing labor intensity. Utility Model Content

[0003] The purpose of this invention is to provide a novel automatic painting device for wind turbine nacelle blocks, ensuring product quality and effectively controlling paint mist pollution generated during the painting process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An automatic painting device for wind turbine nacelle blocks includes a suspended painting robotic arm and a conveying mechanism below it, with a barrier mechanism between them. The inner facade of the barrier mechanism is provided with an array of air intake holes connected to a negative pressure system.

[0006] The top of the spraying robot arm is connected to a suspension platform, which is movably connected to the gantry frame.

[0007] The enclosure mechanism includes two transversely symmetrical "U"-shaped frames, which move towards or away from each other.

[0008] The conveying mechanism is equipped with spaced-apart carrier seats, and the two baffle frames can be moved closer together to enclose the carrier seats.

[0009] Furthermore, the conveying direction of the conveying mechanism is perpendicular to the translation direction of the suspension platform.

[0010] Further, the enclosure mechanism further includes a sliding sleeve and a sliding rod sleeved thereon. The sliding sleeve is fixed to both sides of the gantry, the inner end of the sliding rod is fixedly connected to the retaining frame, the outer end of the sliding rod is connected to the movable part of a telescopic cylinder, and the fixed part of the telescopic cylinder is installed on the gantry.

[0011] Further, a cavity is provided inside the retaining frame, and all the suction holes are arranged on the inner peripheral vertical surface of the "匚"-shaped opening of the retaining frame and communicate with the cavity. The cavity is communicated with the negative pressure system through a flexible pipe.

[0012] Further, the conveying mechanism is a chain-type conveyor belt. The bottom end of the retaining frame is located above the chain-type conveyor belt, and the top end of the retaining frame is higher than the top surface of the carrier seat.

[0013] Further, a concave receiving groove is provided on the top surface of the carrier seat. A vertical support grid is provided in the receiving groove, and a slope that gradually decreases from the center to the outside is provided below the support grid.

[0014] Further, the suspension platform is movably connected to a first cross beam provided at the top end of the gantry. A second cross beam is provided below the first cross beam, and the sliding sleeve and the telescopic cylinder are fixedly connected to the second cross beam.

[0015] Further, a handling groove is provided on the side surface of the carrier seat.

[0016] Further, the number of axes of the spraying robotic arm is 6 axes or 7 axes.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The orthogonal motion design of the spraying robotic arm and the conveying mechanism can achieve fast and uniform spraying of the engine room block. Compared with manual spraying, the spraying efficiency is greatly improved, and the labor intensity is reduced;

[0019] 2. The cooperation of the enclosure mechanism and the negative pressure system can efficiently suck the paint mist scattered around during the spraying process, reduce air pollution, recycle the paint liquid at the same time, reduce paint waste, meet the requirements of green manufacturing, and reduce production costs;

[0020] 3. A slope that gradually decreases from the center to the outside is provided below the support grid, which is convenient for the excess paint liquid to drip and flow down during the spraying process, avoiding the accumulation of paint liquid at the bottom of the block in the receiving groove and affecting the spraying quality and subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is Figure 1 the enlarged schematic diagram at A in

[0023] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0024] Figure 4 This is a top view of the structure of this utility model.

[0025] In the diagram: 1. Spraying robotic arm; 2. Conveying mechanism; 3. Enclosure mechanism; 3a. Baffle frame; 3b. Sliding sleeve; 3c. Sliding rod; 3d. Telescopic cylinder; 4. Suspension platform; 5. Gantry frame; 5a. First crossbeam; 5b. Second crossbeam; 6. Bearing seat; 6a. Receiving groove; 6b. Support grid; 6c. Transport groove. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figures 1-4 As shown, an automatic painting device for wind turbine nacelle blocks includes a suspended painting robotic arm 1 and a conveying mechanism 2 below it. A suspension platform 4 is connected to the top of the painting robotic arm 1, and the suspension platform 4 is movably connected to a first crossbeam 5a at the top of a gantry frame 5. By controlling the movement of the suspension platform 4 on the first crossbeam 5a, the position of the painting robotic arm 1 can be adjusted in the lateral direction (X-axis direction). The conveying direction of the conveying mechanism 2 is perpendicular to the translation direction of the suspension platform 4 (Y-axis direction). The conveying mechanism 2 is equipped with... Each support base 6 is separated into two sections. The top surface of the support base 6 is provided with a recessed receiving groove 6a. The receiving groove 6a contains an upright support grid 6b, which is used to accommodate and support the wind turbine nacelle block. The support grid 6b is provided with a slope that gradually decreases from the center outwards, so that excess paint drips down during the spraying process and avoids paint accumulation at the bottom of the block in the receiving groove 6a, which would affect the spraying quality and subsequent cleaning work. In addition, the side of the support base 6 is provided with a handling groove 6c, which facilitates loading and unloading operations of the support base 6 using a forklift or hook.

[0028] Specifically, a围挡机构3 is provided between the spraying robot arm 1 and the conveying mechanism 2. The inner surrounding facade of the围挡机构3 is provided with a suction hole array connected to the negative pressure system. The围挡机构3 includes two horizontally symmetric挡框3a with a "匚" - shaped cross - section, and also includes a sliding sleeve 3b and a sliding rod 3c sleeved together. The sliding sleeve 3b is fixed on both sides of the gantry 5. The inner end of the sliding rod 3c is fixedly connected to the挡框3a. The outer end of the sliding rod 3c is connected to the movable part of a telescopic cylinder 3d. The fixed part of the telescopic cylinder 3d is installed on the gantry 5. A second cross - beam 5b is arranged under the first cross - beam 5a. The sliding sleeve 3b and the telescopic cylinder 3d are fixedly connected to the second cross - beam 5b. As the telescopic cylinder 3d shortens or elongates, the two挡框3a translate towards or away from each other. When the two挡框3a move closer and dock, they can enclose the carrier seat 6 to form a spray space enclosed on all sides. The interior of the挡框3a is provided with a cavity. All the suction hole arrays are arranged on the inner surrounding facade of the "匚" - shaped opening of the挡框3a and are connected to the cavity. The cavity is connected to the negative pressure system through a flexible pipe. During the spraying process, the negative pressure system is started, and the paint mist scattered around during spraying is sucked into the cavity through the suction hole array, and then discharged through the flexible pipe for treatment, effectively reducing the pollution of the paint mist to the working environment, and at the same time recovering some paint liquid to improve the utilization rate of the paint material.

[0029] The conveying mechanism 2 is a chain - plate conveyor belt. Its conveying surface is formed by connecting multiple chain plates side by side, and each chain plate is connected to each other through a chain to form a continuous conveyor belt. This conveyor belt has high strength and wear resistance and can bear a large load. At the same time, the bottom end of the挡框3a is located above the chain - plate conveyor belt, and the top end of the挡框3a is higher than the top surface of the carrier seat 6.

[0030] In this embodiment, the number of axes of the spraying robot arm 1 is 6 - axis or 7 - axis. The multiple degrees of freedom enable the robot arm to imitate the movements of a human arm, perform more complex motions, operate flexibly in a narrow space, easily bypass obstacles, reach various parts of complex workpieces for spraying, and can precisely control the position and posture of the spray gun to ensure uniform coating thickness on different shapes and surfaces, reduce defects such as sagging and missed spraying, and improve the spraying quality.

[0031] During the use of the present utility model, when the spraying of the engine nacelle block is completed, the telescopic cylinder 3d extends again, and the挡框3a separates. The conveying mechanism 2 continues to operate, conveys the sprayed engine nacelle block to the next station, and removes the carrier seat 6 through a forklift or a hook docking and handling groove 6c to complete the entire spraying process. Through the automated spraying, conveying and paint mist treatment system, problems in the prior art such as low spraying efficiency, unstable quality, serious paint mist pollution and poor versatility are solved, and the high - efficiency, precision and greenness of the spraying of the wind turbine engine nacelle block are realized.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be noted that for those skilled in the art, any related changes, modifications or additions made without departing from the concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic painting device for the nacelle blocks of a wind turbine generator, characterized in that: It includes a suspended spraying robotic arm (1) and a conveying mechanism (2) below it. There is a surrounding mechanism (3) arranged between the two. An array of suction holes connected to a negative pressure system is provided on the inner surrounding vertical surface of the surrounding mechanism (3); The top of the spraying robotic arm (1) is connected to a suspension platform (4), and the suspension platform (4) is movably connected to a gantry (5); The surrounding mechanism (3) includes two "匚"-shaped retaining frames (3a) symmetrically arranged horizontally. The two retaining frames (3a) translate towards or away from each other; The conveying mechanism (2) is provided with spaced-apart bearing seats (6). When the two retaining frames (3a) move closer and dock, the bearing seats (6) can be surrounded; 2. The automatic painting device for wind turbine nacelle blocks according to claim 1, characterized in that: The conveying direction of the conveying mechanism (2) is perpendicular to the translation direction of the suspension platform (4); 3. The automatic painting device for wind turbine nacelle blocks according to claim 1, characterized in that: The surrounding mechanism (3) further includes a sliding sleeve (3b) and a sliding rod (3c) sleeved. The sliding sleeve (3b) is fixed on both sides of the gantry (5). The inner end of the sliding rod (3c) is fixedly connected to the retaining frame (3a). The outer end of the sliding rod (3c) is connected to the movable part of a telescopic cylinder (3d), and the fixed part of the telescopic cylinder (3d) is installed on the gantry (5); 4. The automatic painting device for wind turbine nacelle blocks according to claim 3, characterized in that: A cavity is provided inside the retaining frame (3a). All the arrays of suction holes are provided on the inner surrounding vertical surface of the "匚"-shaped opening of the retaining frame (3a) and are connected to the cavity. The cavity is connected to the negative pressure system through a flexible pipe; 5. The automatic painting device for wind turbine nacelle blocks according to claim 4, characterized in that: The conveying mechanism (2) is a chain-type conveyor belt. The bottom end of the retaining frame (3a) is located above the chain-type conveyor belt, and the top end of the retaining frame (3a) is higher than the top surface of the bearing seat (6); 6. The automatic painting device for wind turbine nacelle blocks according to claim 5, characterized in that: A concave receiving groove (6a) is provided on the top surface of the bearing seat (6). A vertical support grid (6b) is provided in the receiving groove (6a). A slope that gradually decreases from the center to the outside is provided below the support grid (6b); 7. The automatic painting device for wind turbine nacelle blocks according to claim 3, characterized in that: The suspension platform (4) is movably connected to a first cross beam (5a) provided at the top of the gantry (5). A second cross beam (5b) is provided below the first cross beam (5a). The sliding sleeve (3b) and the telescopic cylinder (3d) are fixedly connected to the second cross beam (5b); 8. The automatic painting device for wind turbine nacelle blocks according to claim 6, characterized in that: A handling groove (6c) is provided on the side surface of the bearing seat (6); 9. The automatic painting device for wind turbine nacelle blocks according to claim 1, characterized in that: The spraying robotic arm (1) has 6 or 7 axes;

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