Sand blasting tooling for a segmented wind turbine tower section

Abstract

The utility model relates to tower drum processing field discloses a kind of sand blasting tool for piece type wind power tower drum, including base, be located on the inclination angle adjusting seat of base, be located on the fixing seat for fixing tower drum piece of inclination angle adjusting seat and be located on the support oil cylinder for supporting tower drum piece of both sides of base;Fixing seat is made of bottom plate, two side plates of being located on both sides of bottom plate and connecting plate of connecting two side plates, wherein the inner wall middle part of one side plate is equipped with arc bracing, and the inner wall of another side plate is equipped with multiple arc array inclined-wedge type clamping device;Reverse screw adjusting assembly is equipped on base, and two support oil cylinders are symmetrically arranged on reverse screw adjusting assembly with the central axis of arc bracing, and L-shaped limit baffle is equipped on support oil cylinder.The utility model has the advantages of simple operation, time-saving and labor-saving, and also meets the sand blasting rust removal processing needs of different diameter tower drum pieces.

Description

Technical Field

[0001] This utility model relates to the field of tower processing, and in particular to a sandblasting tool for segmented wind turbine towers. Background Technology

[0002] Segmented wind turbine towers are a new branch of ultra-large onshore wind turbine units. Compared with traditional steel towers, they generate more electricity and can solve the transportation, construction, and plant modification problems faced in the execution of large tower projects more economically and effectively through segmented transportation and combined installation. This enables more efficient popularization and development of wind power resources.

[0003] During the manufacturing process of the tower, sandblasting and rust removal are required. Current technology primarily uses a "roller frame + dummy flange" method: the tower body is placed on a roller frame via a dummy flange, and the roller frame rotates the tower body through the dummy flange, allowing for segmented cutting. After segmentation, longitudinal flanges are welded. Finally, the presence of the dummy flange allows for sandblasting and overall surface corrosion protection of the entire tower body. However, this method cannot address the sandblasting issue of the longitudinal flanges.

[0004] Chinese patent application CN202211290085.2, filed on October 21, 2022, discloses a sandblasting rust removal fixture and its components. This sandblasting rust removal fixture can achieve segmented, dead-angle-free sandblasting treatment of the tower. However, the applicant believes that this sandblasting rust removal fixture still has the following defects:

[0005] 1. The two ends of the tower section are fixed to the connecting plate by multiple bolts. When it is necessary to sandblast and remove rust from the end of the tower section (i.e., the end flange), multiple bolts need to be removed, and then the first telescopic device is controlled to lift the tower section for sandblasting. This method is time-consuming and labor-intensive, affecting processing efficiency.

[0006] 2. The holes on the connecting plate are fixed, which cannot be matched to the production of tower sections with different diameters. Multiple specifications of connecting plates are required, which increases the production cost.

[0007] 3. The first telescopic device is fixed in position and cannot be adjusted. When producing tower sections of different diameters, it is necessary to remove and re-fix the position in order to complete the lifting action of the tower sections, which also has the problem of being time-consuming and labor-intensive.

[0008] Based on this, this application provides a sandblasting fixture for segmented wind turbine towers with a more reasonable structural design, which saves time and effort in operation and can effectively improve production efficiency to solve the above problems. Utility Model Content

[0009] This utility model aims to solve the technical problems existing in the prior art. To this end, this utility model provides a sandblasting fixture for segmented wind turbine towers with a more reasonable structural design, which saves time and effort in operation and can effectively improve production efficiency.

[0010] The technical solution adopted by this utility model to solve its technical problem is:

[0011] A sandblasting fixture for segmented wind turbine towers is provided, comprising a base, an angle adjustment seat on the base, a fixing seat on the angle adjustment seat for fixing the tower segments, and support cylinders on both sides of the base for supporting the tower segments. The fixing seat consists of a base plate, two side plates on both sides of the base plate, and a connecting plate connecting the two side plates. One side plate has an arc-shaped support plate in the middle of its inner wall, and the other side plate has multiple arc-shaped arrays of wedge-type clamping devices on its inner wall. The base is provided with a forward and reverse screw adjustment assembly, and the two support cylinders are symmetrically arranged on the forward and reverse screw adjustment assembly about the central axis of the arc-shaped support plate. The support cylinders are provided with L-shaped limit baffles.

[0012] In some optional embodiments, the wedge clamping device includes a fixed wedge, a driving wedge, a movable wedge, a driving cylinder, and a cylinder bracket. The cylinder bracket is C-shaped, with one end fixedly installed on the inner wall of the side plate. The driving cylinder is fixedly installed inside the cylinder bracket. The fixed wedge is located at the top of the cylinder bracket and is fixedly connected to the side plate. The driving wedge and the movable wedge are movably connected by a dovetail tenon. The movable wedge is movably located at the top of the cylinder bracket. The driving wedge has an oblong hole in the middle, and a connector is provided in the oblong hole. The connector passes through the cylinder bracket and connects to the driving cylinder.

[0013] In some alternative embodiments, the bottom of the movable wedge is provided with a dovetail groove along its direction of movement, and the top of the cylinder bracket is provided with a dovetail-shaped protrusion that matches the dovetail groove.

[0014] In some alternative embodiments, the end face of the movable wedge is provided with anti-slip texture.

[0015] In some alternative embodiments, an arc-shaped pad is provided inside the side plate on the side away from the wedge clamping device, and the surface of the arc-shaped pad is provided with anti-slip texture.

[0016] In some alternative embodiments, the tops of both side plates are arc-shaped, the distance between the upper surface of the arc-shaped support plate and the upper surface of the side plate is less than the width of the end flange of the tower section, and the bottom of the arc-shaped support plate is provided with multiple reinforcing ribs.

[0017] In some optional embodiments, the forward and reverse lead screw adjustment assembly includes an adjustment groove, a bearing seat, a forward and reverse lead screw, a movable seat, and a servo motor. The adjustment groove is located on the base, and the forward and reverse lead screw is rotatably mounted in the adjustment groove through the bearing seat. Movable seats are provided at both ends of the forward and reverse lead screw, and two support cylinders are fixed on the movable seats. The servo motor is fixedly mounted on the base and connected to the forward and reverse lead screw.

[0018] In some alternative implementations, the base is a movable base, and the movable base is mounted on a track.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model clamps the tower sections in the fixed seat using multiple wedge clamping devices. When it is necessary to lift the tower sections for end sandblasting and rust removal, it is not necessary to manually remove multiple bolts. The wedge clamping devices can be directly controlled to loosen the tower sections, which saves time and effort.

[0021] 2. Since the tower sections are clamped in the fixed seat using a wedge clamping device, there is no need to match the bolt hole positions. Therefore, it can meet the processing of tower sections of different diameters and has a wide range of applications.

[0022] 3. The positions of the support cylinders on both sides can be adjusted by the forward and reverse screw adjustment components, which can quickly adjust the spacing according to the tower sections of different diameters, saving time and effort. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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, wherein:

[0024] Figure 1 This is a side view of the sandblasting fixture for the segmented wind turbine tower provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the tower sections provided by this utility model being clamped in the fixed seat by a wedge clamping device;

[0026] Figure 3 This is a schematic diagram of the assembly structure of the inclined wedge clamping device and the fixed base provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the inclined wedge clamping device provided by this utility model;

[0028] Figure 5This is an assembly structure diagram of the support cylinder and the forward and reverse lead screw adjustment assembly provided by this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1—Base, 2—Tilt adjustment seat, 2.1—Support plate, 2.2—Hinge seat, 2.3—Tilt adjustment cylinder, 3—Fixed seat, 3.1—Base plate, 3.2—Side plate, 3.3—Connecting plate, 4—Support cylinder, 5—Arc-shaped support plate, 5.1—Reinforcing rib plate, 6—Wedge clamping device, 6.1—Fixed wedge block, 6.2—Drive wedge block, 6.2.1—Octagonal hole, 6.3—Modible wedge block, 6.4—Drive cylinder, 6.5—Cylinder bracket, 6.6—Connector, 7—Arc-shaped pad, 8—Forward and reverse screw adjustment assembly, 8.1—Adjustment groove, 8.2—Bearing seat, 8.3—Forward and reverse screw, 8.4—Modible seat, 8.5—Servo motor, 9—Limit baffle, 10—Tower section, 20—Rail. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] 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.

[0033] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "installation," "connection," and "linking" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Example 1

[0037] As attached Figure 1 As shown, this embodiment provides a sandblasting fixture for a segmented wind turbine tower, used to fix the tower segment 10. Specifically, two sandblasting fixtures are used to fix both ends of the tower segment. The sandblasting fixture includes a base 1, an angle adjustment seat 2 on the base, a fixing seat 3 on the angle adjustment seat for fixing the tower segment 10, and support cylinders 4 on both sides of the base 1 for supporting the tower segment 10, wherein:

[0038] The base 1 is preferably a movable base, and the movable base is disposed on the track 20 so that the tooling can move along the track.

[0039] The tilt adjustment seat 2 includes a support plate 2.1, a hinge seat 2.2, and a tilt adjustment cylinder 2.3. One end of the support plate 2.1 is fixed to the base 1 via the hinge seat 2.2, and the other end is hinged to the tilt adjustment cylinder 2.3, which is hinged to the base 1. In this embodiment, the tilt adjustment seat can control the tilt of the tower sections fixed on the base by using the tilt adjustment cylinder to control the tilt of the support plate, facilitating sandblasting and rust removal of the internal supports of the tower sections.

[0040] As attached Figure 2 and attached Figure 3 As shown, the fixing base 3 consists of a base plate 3.1, two side plates 3.2 located on both sides of the base plate, and a connecting plate 3.3 connecting the two side plates. One of the side plates 3.2 has an arc-shaped support plate 5 in the middle of its inner wall, which can abut against the inner ring of the end flange of the horizontally placed tower section and can be used to support the tower section. The other side plate 3.2 has multiple arc-shaped arrays of inclined wedge clamping devices 6 in its inner wall, which are used to clamp the tower section in the fixing base.

[0041] Preferably, in this embodiment, the tops of both side plates 3.2 are arc-shaped. The distance between the upper surface of the arc-shaped support plate 5 and the upper surface of the side plate 3.2 is less than the width of the end flange of the tower segment 10, ensuring that the inner ring of the end flange contacts the arc-shaped support plate, thus supporting the tower segment. The bottom of the arc-shaped support plate 5 is provided with multiple reinforcing ribs 5.1 to increase its structural strength.

[0042] Preferred options are listed below. Figure 4As shown, the wedge clamping device 6 of this embodiment includes a fixed wedge 6.1, a driving wedge 6.2, a movable wedge 6.3, a driving cylinder 6.4, and a cylinder bracket 6.5. The cylinder bracket 6.5 is C-shaped, with one end fixedly installed on the inner wall of the side plate 3.2. The driving cylinder 6.4 is fixedly installed inside the cylinder bracket 6.5. The fixed wedge 6.1 is located on the top of the cylinder bracket 6.5 and is fixedly connected to the side plate 3.2. The driving wedge 6.2 and the movable wedge 6.3 are movably connected by a dovetail tenon or a T-slot tenon. The movable wedge 6.3 is movably located on the top of the cylinder bracket 6.5. The driving wedge 6.2 has a slotted hole 6.2.1 in the middle, preferably a countersunk slotted hole. A connector 6.6 is provided in the slotted hole, and the connector 6.6 passes through the cylinder bracket 6.5 and connects to the driving cylinder 6.4. The working principle of the inclined wedge clamping device in this embodiment is as follows: the drive cylinder is controlled to move downward, and the drive wedge is pulled down by the drive cylinder. At the same time, since the fixed wedge is inclined, the drive wedge also has a tendency to move to the left. The setting of the oblong hole on the drive wedge allows it to have space to move left and right. The movable wedge moves towards the end flange of the tower section under the push of the drive wedge until the end flange is clamped on the side plate of the fixed seat.

[0043] Preferably, the bottom of the movable wedge 6.3 has a dovetail groove (not shown in the figure) along its direction of movement, and the top of the cylinder bracket has a dovetail-shaped protrusion (not shown in the figure) that matches the dovetail groove. This design limits the movable wedge to only moving left and right. In other embodiments, a T-shaped tenon structure can also be used between the movable wedge and the cylinder bracket.

[0044] Preferably, the end face of the movable wedge 6.3 is provided with anti-slip texture, which can increase the friction between it and the flange and improve the clamping effect.

[0045] Preferably, in this embodiment, an arc-shaped pad 7 is also provided inside the side plate 3.2 on the side away from the wedge clamping device 6. The thickness of the arc-shaped pad can be adjusted to adjust the distance between the arc-shaped pad and the movable wedge. The surface of the arc-shaped pad is provided with anti-slip texture, which can also increase friction and improve the clamping effect.

[0046] As attached Figure 1 and attached Figure 5 As shown, the base 1 is equipped with a forward and reverse screw adjustment assembly 8. Two supporting cylinders 4 are symmetrically arranged on the forward and reverse screw adjustment assembly 8 about the central axis of the arc-shaped support plate 5. The forward and reverse screw adjustment assembly allows for synchronous adjustment of the distance between the two supporting cylinders to support tower sections of different diameters. Each supporting cylinder 4 is equipped with an L-shaped limiting baffle 9, which provides limiting support to both sides of the tower section.

[0047] Preferably, the forward and reverse lead screw adjustment assembly 8 in this embodiment includes an adjustment groove 8.1, a bearing seat 8.2, a forward and reverse lead screw 8.3, a movable seat 8.4, and a servo motor 8.5. The adjustment groove 8.1 is disposed on the base 1, and the forward and reverse lead screw 8.3 is rotatably mounted in the adjustment groove 8.1 through the bearing seat 8.2. Movable seats 8.4 are provided at both ends of the forward and reverse lead screw 8.3, and two support cylinders 4 are fixed on the movable seats 8.4. The servo motor 8.5 is fixedly mounted on the base 1 and connected to the forward and reverse lead screw 8.3.

[0048] In practice, the spacing between the two sandblasting fixtures is adjusted according to the length of the tower section; the distance between the two support cylinders is adjusted using the forward and reverse screw adjustment assembly according to the spacing between the two sides of the tower section, so that the tower section can be smoothly lifted; the support cylinders are controlled to lift, and the tower section is horizontally hoisted onto the four support cylinders, and the sandblasting robot is used to sandblast and remove rust from both ends of the tower section; after the end sandblasting and rust removal is completed, the four support cylinders are slowly controlled to descend until the flanges at both ends of the tower section enter the fixed seat and are lifted by the arc-shaped support plate; the wedge clamps are controlled to... The clamping device holds the tower sections in the fixed seat, and the control cylinder separates the tower sections. The sandblasting robot then performs sandblasting and rust removal on the outer surface of the tower sections. After the outer surface is sandblasted and rust removed, the tilt adjustment seat is controlled to adjust the tilt of the tower sections (if the support cylinder interferes with the tower sections during the tilt adjustment process, the servo motor is controlled to move the support cylinder away). This completes the sandblasting and rust removal of the inner surface. After the sandblasting and rust removal of the tower sections is completed, the tilt adjustment seat is controlled to adjust the tower sections to be horizontal for easy hoisting.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sandblasting fixture for a segmented wind turbine tower, comprising a base, an angle adjustment seat mounted on the base, a fixing seat mounted on the angle adjustment seat for fixing the tower segments, and supporting cylinders mounted on both sides of the base for supporting the tower segments; characterized in that: The fixing base consists of a base plate, two side plates on both sides of the base plate, and a connecting plate connecting the two side plates. One side plate has an arc-shaped support plate in the middle of its inner wall, and the other side plate has multiple arc-shaped arrays of inclined wedge clamping devices on its inner wall. The base is provided with a forward and reverse screw adjustment assembly. The two support cylinders are symmetrically arranged on the forward and reverse screw adjustment assembly with respect to the central axis of the arc-shaped support plate, and the support cylinders are provided with L-shaped limit baffles.

2. The sandblasting fixture for segmented wind turbine towers according to claim 1, characterized in that: The inclined wedge clamping device includes a fixed wedge, a driving wedge, a movable wedge, a driving cylinder, and a cylinder bracket. The cylinder bracket is C-shaped, with one end fixedly installed on the inner wall of the side plate. The driving cylinder is fixedly installed inside the cylinder bracket. The fixed wedge is located at the top of the cylinder bracket and is fixedly connected to the side plate. The driving wedge and the movable wedge are movably connected by a dovetail tenon. The movable wedge is movably located at the top of the cylinder bracket. The driving wedge has an oblong hole in the middle, and a connector is provided in the oblong hole. The connector passes through the cylinder bracket and connects to the driving cylinder.

3. The sandblasting fixture for segmented wind turbine towers according to claim 2, characterized in that: The bottom of the movable wedge is provided with a dovetail groove along its moving direction, and the top of the cylinder bracket is provided with a dovetail-shaped protrusion that matches the dovetail groove.

4. The sandblasting fixture for segmented wind turbine towers according to claim 2, characterized in that: The end face of the movable wedge is provided with anti-slip texture.

5. The sandblasting fixture for segmented wind turbine towers according to claim 1, characterized in that: An arc-shaped pad is provided inside the side plate away from the wedge clamping device, and the surface of the arc-shaped pad is provided with anti-slip texture.

6. The sandblasting fixture for segmented wind turbine towers according to claim 1, characterized in that: The tops of both side plates are arc-shaped, and the distance between the upper surface of the arc-shaped support plate and the upper surface of the side plate is less than the width of the end flange of the tower section. The bottom of the arc-shaped support plate is provided with multiple reinforcing ribs.

7. The sandblasting fixture for segmented wind turbine towers according to claim 1, characterized in that: The forward and reverse lead screw adjustment assembly includes an adjustment groove, a bearing seat, a forward and reverse lead screw, a movable seat, and a servo motor. The adjustment groove is located on the base, and the forward and reverse lead screw is rotatably installed in the adjustment groove through the bearing seat. Movable seats are provided at both ends of the forward and reverse lead screw, and two support cylinders are fixed on the movable seats. The servo motor is fixedly installed on the base and connected to the forward and reverse lead screw.

8. The sandblasting fixture for segmented wind turbine towers according to any one of claims 1 to 7, characterized in that: The base is a movable base, and the movable base is set on a track.

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