A drum polishing device for a wind turbine blade edge surface

Abstract

This utility model discloses a roller grinding device for the edge surface of wind turbine blades, relating to the field of wind turbine blade technology. The utility model includes a grinding brush component and a pressure regulating component. The grinding brush component includes a grinding brush roller and an outer casing. The pressure regulating component includes two sets of side wheels and a pressure compensation assembly. The grinding brush roller is rotatably mounted inside the outer casing. The rotating shaft of the grinding brush roller is connected to the output end of a motor via a belt. The two sets of side wheels are rotatably mounted on the outer sides of both ends of the outer casing. The two ends of the pressure compensation assembly are respectively connected to the two side wheels. This utility model uses a motor to drive the belt to rotate the grinding brush roller, causing it to grind the blade. The pressure compensation assembly applies a constant pressure to the blade using the side wheels at both ends, and actively adjusts the applied pressure according to the movement of the robotic arm and the blade's curvature, thus ensuring a constant pressure applied by the grinding brush roller to the blade and a uniform grinding effect.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade grinding technology, and in particular relates to a roller grinding device for the edge surface of wind turbine blades. Background Technology

[0002] After wind turbine blades are manufactured, their surfaces need to be polished to make them extremely smooth, reduce resistance, and allow wind to flow more smoothly over the blade surface, thereby improving the blade's aerodynamic efficiency and increasing power generation. However, when polishing the blade edges, because the blade edges are curved, the pressure applied by the polishing brush roller to the polishing machine may be unstable, resulting in uneven polishing of the blades. This requires constant adjustment of the pressure applied to the blades by the polishing device, making the operation process complex.

[0003] To address these issues, we provide a roller grinding device for the edge surface of wind turbine blades. Utility Model Content

[0004] The purpose of this invention is to provide a roller grinding device for the edge surface of wind turbine blades. A grinding roller is rotatably installed inside the outer casing of the grinding component. A motor drives the roller via a belt, causing it to grind the blade. Side wheels are rotatably installed at both ends of the outer casing. The pressure compensation component in the pressure regulating component is connected to both ends of the two side wheels. The pressure compensation component applies a constant pressure to the blade through the side wheels. The applied pressure is actively adjusted according to the movement of the robotic arm and the blade's curvature, thus ensuring a constant pressure applied by the grinding roller to the blade and achieving a uniform grinding effect.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a roller grinding device for the edge surface of wind turbine blades, comprising a grinding brush component and a pressure regulating component. The grinding brush component includes a grinding brush roller and an outer casing. The pressure regulating component includes two sets of side wheels and a pressure compensation component. The grinding brush roller is rotatably installed inside the outer casing. The rotation shaft of the grinding brush roller is connected to the output end of a motor via a belt. The two sets of side wheels are rotatably installed on the outer sides of both ends of the outer casing, and the rotation lines of the side wheels coincide with the roller shaft of the grinding brush roller. The two ends of the pressure compensation component are respectively connected to the two side wheels.

[0007] A further feature of this invention is that a horizontal plate is fixedly provided at the lower end of the outer side of the two ends of the roller shaft near the two ends of the outer cover. An adapter ear is fixedly provided on the end face of the horizontal plate away from the outer cover. A wheel axle is rotatably sleeved inside the wheel axle sleeve of the side wheel. One end face of the wheel axle is fixedly connected to the end face of the adapter ear away from the outer cover. An L-shaped lower pressure plate is fixedly provided on the end face of the wheel axle away from the adapter ear. The two ends of the pressure compensation component are respectively connected to the horizontal plate surfaces of the lower pressure plates at both ends.

[0008] A further feature of this invention is that the pressure compensation assembly includes a drive connecting plate, two cylinders, and two pressure sensors. The two cylinders are respectively fixedly installed at both ends of the drive connecting plate, and the two pressure sensors are respectively fixedly installed at the upper ends of the horizontal plates of the two lower pressure plates. An inner sleeve is fixedly installed at the upper end of the pressure sensor, and the telescopic ends of the two cylinders are respectively connected to the two inner sleeves for transmission.

[0009] A further feature of this invention is that a pressure piston is fixedly sleeved on the telescopic end of the cylinder, and two pressure pistons are slidably sleeved in two inner sleeves respectively. A buffer spring is sleeved inside the inner sleeve, and the two ends of the buffer spring are fixedly connected to the inner top surface of the inner sleeve and the end face of the pressure piston respectively.

[0010] A further feature of this invention is that a connecting sleeve is fixedly provided in the middle section of the drive connecting plate.

[0011] A further feature of this invention is that the pressure compensation assembly also includes a connecting beam, with outer sleeves fixedly mounted at both ends of the connecting beam, and the two outer sleeves being fixedly fitted onto the outer sides of the two inner sleeves respectively.

[0012] A further feature of this invention is that an inner flange is fixedly provided on the inner side of the upper end of the outer sleeve, and a stopper cylinder is fixedly provided on the inner side of the inner flange extending downward, with the stopper cylinder sleeved inside the inner sleeve.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model involves rotating and installing a grinding roller inside the outer casing of the grinding brush component, and driving the grinding roller to rotate by a motor and belt, so that the grinding roller can grind the blades.

[0015] 2. This utility model rotatably installs side wheels at both ends of the outer casing, and connects the two ends of the pressure compensation component in the pressure adjustment component to the two side wheels. The pressure compensation component makes the side wheels at both ends apply a constant pressure to the blade, and actively adjusts the applied pressure according to the movement of the robotic arm and the arc surface of the blade, so that the pressure applied to the blade by the grinding roller in the grinding component is constant, and the grinding effect on the blade is uniform. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a roller grinding device for the edge surface of a wind turbine blade.

[0018] Figure 2 This is an exploded view of the outer casing and the side wheels.

[0019] Figure 3 This is a schematic diagram of the pressure compensation component and the lower pressure plate.

[0020] Figure 4 This is a side sectional view of the pressure compensation component.

[0021] Figure 5 for Figure 4 A magnified view of a portion of region A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Grinding brush component, 101-Grinding brush roller, 102-Outer casing, 102a-Horizontal plate, 102a-1-Adapter ear, 2-Pressure adjustment component, 201-Side wheel, 201a-Wheel axle, 201a-1-Lower pressure plate, 202-Pressure compensation assembly, 202a-Drive connecting plate, 202a-1-Connecting sleeve, 202b-Cylinder, 202b-1-Pressure piston, 202c-Pressure sensor, 202c-1-Inner sleeve, 202c-2-Buffer spring, 202d-Connecting crossbeam, 202d-1-Outer sleeve, 202d-2-Inner flange, 202d-3-Blocking cylinder. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1 to 3This utility model is a roller grinding device for the edge surface of wind turbine blades, including a grinding brush component 1 and a pressure regulating component 2. The grinding brush component 1 includes a grinding brush roller 101 and an outer casing 102. The pressure regulating component 2 includes two sets of side wheels 201 and a pressure compensation component 202. The grinding brush roller 101 is rotatably installed inside the outer casing 102 of the grinding brush component 1. The grinding brush roller 101 is driven to rotate by a motor and belt, so that the grinding brush roller 101 grinds the blade. The side wheels 201 are rotatably installed at both ends of the outer casing 102. The pressure compensation component 202 is connected to the two side wheels 201 at both ends. The pressure compensation component 202 applies a constant pressure to the blade by the side wheels 201 at both ends. The applied pressure is actively adjusted according to the movement of the robotic arm and the curvature of the blade, so that the pressure applied by the grinding brush roller 101 to the blade in the grinding brush component 1 is constant and the grinding effect on the blade is uniform.

[0027] Specifically, the brush roller 101 is rotatably installed inside the outer casing 102. The rotating shaft of the brush roller 101 is connected to the output end of the motor via a belt. Two sets of side wheels 201 are rotatably installed on the outer sides of both ends of the outer casing 102. The rotation line of the side wheels 201 coincides with the roller shaft of the brush roller 101. The two ends of the pressure compensation component 202 are respectively connected to the two side wheels 201.

[0028] Furthermore, a horizontal plate 102a is fixedly provided on the lower end of the outer side surface of the outer casing 102 near the two ends of the roller shaft of the brush roller 101. A transition ear 102a-1 is fixedly provided on the end face of the horizontal plate 102 away from the outer casing 102. The wheel shaft 201a is rotatably sleeved in the wheel shaft sleeve of the side wheel 201. One end face of the wheel shaft 201a is fixedly connected to the end face of the transition ear 102a-1 away from the outer casing 102. An L-shaped lower pressure plate 201a-1 is fixedly provided on the end face of the wheel shaft 201a away from the transition ear 102a-1. The two ends of the pressure compensation component 202 are respectively connected to the horizontal plate surface of the lower pressure plate 201a-1 at both ends. The pressure compensation component 202 applies a constant pressure to the lower pressure plate 201a-1 at both ends, so that the lower pressure plate 201a-1 applies a constant pressure to the side wheel 201.

[0029] Furthermore, the pressure compensation assembly 202 includes a drive connecting plate 202a, two cylinders 202b, and two pressure sensors 202c. The two cylinders 202b are respectively fixedly installed at both ends of the drive connecting plate 202a, and the two pressure sensors 202c are respectively fixedly installed at the upper ends of the horizontal plates of the two lower pressure plates 201a-1. An inner sleeve 202c-1 is fixedly installed at the upper end of the pressure sensor 202c. The extension and retraction ends of the two cylinders 202b are respectively connected to the two inner sleeves 202c-1. The pressure sensor 202c detects the pressure applied by the cylinder 202b to the lower pressure plate 201a-1 in real time, and adjusts the extension and retraction of the cylinder 202b according to the detected results to keep the pressure applied by the cylinder 202b to the lower pressure plate 201a-1 constant.

[0030] Furthermore, a pressure piston 202b-1 is fixedly sleeved on the telescopic end of cylinder 202b. The two pressure pistons 202b-1 are slidably sleeved in the two inner sleeves 202c-1. A buffer spring 202c-2 is sleeved inside the inner sleeve 202c-1. The two ends of the buffer spring 202c-2 are fixedly connected to the inner top surface of the inner sleeve 202c-1 and the end face of the pressure piston 202b-1, respectively. When cylinder 202b extends its telescopic end to increase the applied pressure, the buffer spring 202c-2 absorbs part of the pressure and buffers a portion of the extended length of cylinder 202b, thereby avoiding excessive pressure and facilitating the detection of pressure data changes by pressure sensor 202c.

[0031] Furthermore, a connecting sleeve 202a-1 is fixedly provided in the middle section of the drive connecting plate 202a for fixed connection with the robotic arm.

[0032] The operation process in this embodiment is as follows:

[0033] The brush roller 101 in the brush component 1 is attached to the blade surface. The telescopic end of the cylinder 202b pushes the pressure piston 202b-1, causing the buffer spring 202c-2 to absorb part of the pressure and the length of the telescopic end of the cylinder 202b, and pushes the lower pressure plate 201a-1 to apply pressure to the side wheel 201. The side wheel 201 drives the outer cover 102, increasing the pressure of the brush roller 101 on the blade. The pressure sensor 202c detects the pressure of the cylinder 202b on the lower pressure plate 201a-1 in real time, and adjusts the telescopic extension of the cylinder 202b according to the detected result, so that the pressure applied by the cylinder 202b on the lower pressure plate 201a-1 is constant, thereby making the pressure of the brush roller 101 on the blade constant.

[0034] Example 2

[0035] Please see Figures 1 to 5Based on Embodiment 1, the pressure compensation assembly 202 further includes a connecting beam 202d. By fixing the outer sleeves 202d-1 at both ends of the connecting beam 202d to the outside of the two inner sleeves 202c-1 respectively, the two inner sleeves 202c-1 are fixedly connected.

[0036] Specifically, outer sleeves 202d-1 are fixed at both ends of the connecting beam 202d, and the two outer sleeves 202d-1 are respectively fixedly sleeved on the outer side of the two inner sleeves 202c-1.

[0037] Furthermore, an inner flange 202d-2 is fixedly provided on the inner side of the upper end of the outer sleeve 202d-1, and a stopper cylinder 202d-3 is fixedly provided on the inner side of the inner flange 202d-2 extending downward, and the stopper cylinder 202d-3 is sleeved inside the inner sleeve 202c-1.

[0038] The operation process in this embodiment is as follows:

[0039] The outer sleeves 202d-1 connecting the two ends of the crossbeam 202d are fixedly sleeved on the outside of the two inner sleeves 202c-1, so that the stopper sleeve 202d-3 is fixedly sleeved inside the inner sleeve 202c-1, so that the stopper sleeve 202d-3 blocks the pressure piston 202b-1 and prevents the pressure piston 202b-1 from falling out of the inner sleeve 202c-1.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A drum sanding device for sanding the edge surface of a wind turbine blade, comprising a brush member (1) and a pressure regulating member (2), characterized in that: The brush component (1) includes a brush roller (101) and an outer casing (102). The pressure regulating component (2) includes two sets of side wheels (201) and a pressure compensation component (202). The brush roller (101) is rotatably installed inside the outer casing (102). The rotation shaft of the brush roller (101) is connected to the output end of the motor via a belt. The two sets of side wheels (201) are rotatably installed on the outer sides of both ends of the outer casing (102). The rotation line of the side wheels (201) coincides with the roller shaft of the brush roller (101). The two ends of the pressure compensation component (202) are respectively connected to the two side wheels (201).

2. A drum sander for wind turbine blade edge surfaces according to claim 1, characterized in that: The outer casing (102) has horizontal plates (102a) fixedly installed at the lower ends of the outer sides of the roller shafts at both ends near the two ends of the brush roller (101). The end face of the horizontal plate (102a) away from the outer casing (102) extends upward and is fixedly provided with a transition ear (102a-1). The axle (201a) is rotatably sleeved in the axle sleeve of the side wheel (201). One end face of the axle (201a) is fixedly connected to the end face of the transition ear (102a-1) away from the outer casing (102). The end face of the axle (201a) away from the transition ear (102a-1) extends upward and is fixedly provided with an L-shaped lower pressure plate (201a-1). The two ends of the pressure compensation component (202) are respectively connected to the horizontal plate surfaces of the lower pressure plates (201a-1) at both ends.

3. A drum sander for wind turbine blade edge surfaces according to claim 2, characterized in that: The pressure compensation assembly (202) includes a drive connecting plate (202a), two cylinders (202b) and two pressure sensors (202c). The two cylinders (202b) are respectively fixedly installed at both ends of the drive connecting plate (202a), and the two pressure sensors (202c) are respectively fixedly installed at the upper ends of the horizontal plates of the two lower pressure plates (201a-1). An inner sleeve (202c-1) is fixedly installed at the upper end of the pressure sensor (202c). The telescopic ends of the two cylinders (202b) are respectively connected to the two inner sleeves (202c-1) in a transmission connection.

4. A drum sander for wind turbine blade edge surfaces according to claim 3, characterized in that: The cylinder (202b) has a pressure piston (202b-1) fixedly sleeved at its telescopic end. The two pressure pistons (202b-1) are slidably sleeved in the two inner sleeves (202c-1). A buffer spring (202c-2) is sleeved in the inner sleeve (202c-1). The two ends of the buffer spring (202c-2) are fixedly connected to the inner top surface of the inner sleeve (202c-1) and the end face of the pressure piston (202b-1), respectively.

5. A drum sander for wind turbine blade edge surfaces according to claim 4, characterized in that: A connecting sleeve (202a-1) is fixedly provided in the middle section of the drive connecting plate (202a).

6. A drum sander for wind turbine blade edge surfaces according to claim 3, characterized in that: The pressure compensation assembly (202) further includes a connecting beam (202d), with an outer sleeve (202d-1) fixedly mounted at both ends of the connecting beam (202d). The outer sleeves (202d-1) at both ends are respectively fixedly sleeved on the outer sides of two inner sleeves (202c-1).

7. A drum sander for wind turbine blade edge surfaces according to claim 6, characterized in that: The inner sleeve (202d-1) is fixedly provided with an inner buckle edge (202d-2) at the upper end, and the inner side of the inner buckle edge (202d-2) extends downward to be fixedly provided with a stopper cylinder (202d-3) which is sleeved in the inner sleeve (202c-1).

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