Wind power blade root support
By designing a wind power leaf root bracket and fixing the leaf root using a curved arc top frame and limiting parts, the problems of unstable and rotation of the leaf root fixation in the prior art are solved, and better support and fixing effects are achieved.
Patent Information
- Application Number
- CN202421539887.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing wind power leaf root fixation method has the problem that the suspended area cannot be fully fitted, and the rope binding cannot limit the leaf root rotation.
A wind power leaf root bracket is designed, with connecting bolts at the bottom of the leaf root. The bracket includes a base frame and a curved curved top frame. The top frame matches the outer contour of the leaf root. The top frame is equipped with a removable and adjustable first limiting member and a fixed second limiting member at the top frame. The connecting bolts pass through the limit hole and are screwed on to fix it, so as to achieve stable fixation of the leaf root.
The tight fit between the leaf root and the stent is achieved, and there is no suspended position, which can effectively limit the rotation of the leaf root and improve the fixed stability.
Smart Images
Figure CN222576805U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wind power equipment, and specifically relates to a wind power blade root bracket. Background Art
[0002] The wind turbine impeller is the core component of the wind turbine that converts natural wind energy into electricity. It consists of three blades. When the wind blows towards the blades, air pressure is generated on the blades to drive the wind wheel to rotate. The blades consist of the root, blade body and blade tip, and the length of the blade is between 30 meters and 50 meters.
[0003] The blade roots of wind turbine impellers need to be fixed during transportation. The existing fixation method generally uses metal pipes or wooden pipes to overlap into a V-shaped frame. The blade roots are placed on the frame, and ropes are wrapped around the blade roots and tied together with the frame. There is a suspended area between the V-shaped frame and the blade roots, which cannot fit completely. The ropes are tied to the surface of the blade roots, which cannot prevent the blade roots from rotating. Summary of the invention
[0004] In view of the shortcomings of the above background technology, the purpose of the utility model is to provide a wind turbine blade root bracket, which completely fits the blade root and is matched with the connecting bolts on the blade root to limit its rotation.
[0005] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:
[0006] A wind turbine blade root bracket, wherein a plurality of surrounding connecting bolts are arranged at the bottom of the blade root; the bracket comprises a bottom frame, and a curved arc-shaped top frame is arranged on the bottom frame; the shape of the top frame matches the outer contour of the blade root;
[0007] The top two sides of the top frame are respectively provided with detachable and adjustable first limiting members; the first limiting member is provided with a first waist-shaped hole, and the first limiting member is provided with a plurality of first limiting holes arranged in an annular manner; the fixing bolts pass through the top frame and the first waist-shaped holes and are screwed with nuts to fix them;
[0008] A fixed second limiting member is installed at the bottom of the top frame; a second limiting hole with an opening facing upward is opened at the top of the second limiting member; the second limiting holes are arranged from high to low;
[0009] The connecting bolt passes through the first limiting hole and the second limiting hole and is screwed on with a nut to fix it.
[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the base frame includes a plurality of first steel pipes welded into a rectangular shape; the top frame includes a plurality of vertically arranged second steel pipes, and the second steel pipes are vertically welded and fixed to the first steel pipes; a horizontal third steel pipe is welded between two adjacent second steel pipes, the outer ends of the top frame are lowered toward the middle, and a curved first steel bar is welded on the top of the second steel pipe.
[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: a plurality of second steel pipes are arranged in two rows, and two first steel bars are respectively welded to the tops of the two rows of second steel pipes.
[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the second steel pipes of the top frame are symmetrically arranged, and the second steel pipe and the third steel pipe together form a fork hole.
[0013] On the basis of the above solution and as a preferred solution of the above solution: a fourth steel pipe which is inclined is welded to the top surface of the first steel pipe and the side surface of the second steel pipe.
[0014] On the basis of the above solution and as a preferred solution of the above solution: hanging rings are respectively installed on both sides of the top of the top frame.
[0015] On the basis of the above solution and as a preferred solution of the above solution: the upper and lower surfaces of the first limiting member are respectively provided with avoidance gaps.
[0016] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:
[0017] Compared with the prior art, the wind turbine blade root bracket of the utility model has a top frame arranged on the bottom frame, and the top frame is bent into an arc shape and attached to the blade root, so as to better support the force and there is no hanging position;
[0018] The top two sides of the top frame are provided with detachable and adjustable first limit pieces, which can be adjusted as needed, and the first limit pieces are provided with first waist-shaped holes for adjustment; the first limit pieces are provided with first limit holes, and the connecting bolts are inserted into the first limit holes, and the nuts are screwed on to fix them, so that the connecting bolts will not move, and the indirect blade roots will not rotate, thereby achieving fixation;
[0019] The second limiting member is provided with a second limiting hole, and the connecting bolt passes through the second limiting hole to also play a limiting and fixing role. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the installation structure of the utility model.
[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0022] Figure 3 It is a schematic diagram of the support structure of the utility model.
[0023] Figure 4 It is a schematic diagram of the support structure of the utility model.
[0024] Reference numerals: blade root 01; connecting bolt 010; bracket 02; bottom frame 020; first steel pipe 0200; top frame 021; second steel pipe 0210; third steel pipe 0211; fork hole 02110; first steel bar 0212; fourth steel pipe 0213; lifting ring 0214; first limiting member 022; first waist-shaped hole 0220; first limiting hole 0221; avoidance notch 0222; second limiting member 023; second limiting hole 0230; fixing bolt 03; DETAILED DESCRIPTION
[0025] The present invention will be further described below with reference to specific embodiments of the invention;
[0026] This embodiment provides a wind turbine blade root bracket, wherein a plurality of surrounding connecting bolts 010 are provided at the bottom of the blade root 01; the connecting bolts 010 are used to connect to the hub, and the connecting bolts 010 are fixed thereon during the production process of the blade root 01; the blade root 01 is in a circular ring shape, and a plurality of connecting bolts 010 are arranged around it;
[0027] The bracket 02 includes a bottom frame 020, on which a curved top frame 021 is disposed; the shape of the top frame 021 matches the outer contour of the blade root 01; the bracket 02 is used to support and fix the blade root 01, the bottom frame 020 is placed on the loading board of a truck or a ship, and the top frame 021 supports and holds the blade root 01, and the curved shape of the top frame 021 can limit the movement of the blade root 01 to both sides; the top frame 021 fits the blade root 01, and there is no overhead space, and the support is good and stable;
[0028] The top two sides of the top frame 021 are respectively installed with detachable and adjustable first limiting members 022; the first limiting member 022 is in the shape of a plate or a block, and is provided with a first waist-shaped hole 0220, which is used to adjust the installation position, and the number and position of the first waist-shaped holes 0220 are designed according to the requirements; the first limiting member 022 is provided with a plurality of first limiting holes 0221 arranged in an annular manner, and the first limiting holes 0221 are arranged and designed according to the positions of the connecting bolts 010, and the first limiting holes 0221 are round holes; the fixing bolts 03 pass through the top frame 021 and the first waist-shaped holes 0220 and are fixed by screwing on nuts; the first limiting member 022 is fixed to the top frame 021, and is designed according to the required size;
[0029] A fixed second limiting member 023 is installed at the bottom of the top frame 021; the second limiting member 023 is in a plate or block shape; a second limiting hole 0230 with an opening facing upward is opened on the top of the second limiting member 023, and the second limiting hole 0230 is in a groove shape; the second limiting holes 0230 are arranged from high to low; the second limiting holes 0230 are arranged and designed according to the position of the connecting bolt 010;
[0030] The connecting bolt 010 passes through the first limiting hole 0221 and the second limiting hole 0230 and is screwed with a nut to fix it. The connecting bolt 010 is inserted into the first limiting member 022 and the nut is screwed on. The first limiting member 022 fixes the connecting bolt 010 and the connecting bolt 010 cannot move;
[0031] As described above, in the specific fixing process, the bracket 02 is placed on the running vehicle, the connecting bolt 010 of the blade root 01 is horizontally inserted into the first limiting hole 0221 of the first limiting member 022, and the blade root 01 is placed on the top frame 021. At the same time, the connecting bolt 010 is inserted into the second limiting hole 0230 of the second limiting member 023; then a nut is screwed into the connecting bolt 010 to fix it on the first limiting member 022 and the second limiting member 023, thereby indirectly preventing the blade root 01 from rotating, thereby achieving axial fixation of the blade root 01.
[0032] Furthermore, the base frame 020 includes a plurality of first steel pipes 0200 welded into a rectangular shape; the top frame 021 includes a plurality of vertically arranged second steel pipes 0210, and the second steel pipes 0210 are vertically welded and fixed to the first steel pipes 0200; a horizontal third steel pipe 0211 is welded between two adjacent second steel pipes 0210, the outer ends of the top frame 021 are lowered toward the middle, and a curved first steel bar 0212 is welded to the top of the second steel pipe 0210.
[0033] As described above, the base frame 020 is welded with the first steel pipe 0200 on the horizontal plane and used as a base; the second steel pipe 0210 is welded with the first steel pipe 0200 to play a supporting role; the third steel pipe 0211 is welded between the second steel pipes 0210 to connect and support the force; the height of the second steel pipe 0210 decreases from both sides of the outer end inward to form an arc with high ends and low middle; the number of the second steel pipes 0210 is designed according to the needs, and the first steel bar 0212 is welded on the second steel pipe 0210. The first steel bar 0212 plays the role of connecting the second steel pipe 0210, and can also fit the blade root 01 to have the effect of supporting and increasing friction;
[0034] Furthermore, a plurality of second steel pipes 0210 are arranged in two rows, and two first steel bars 0212 are welded to the tops of the two rows of second steel pipes 0210 respectively.
[0035] As mentioned above, in order to increase the supporting and bearing effects, two rows of second steel pipes 0210 and two first steel bars 0212 are provided.
[0036] Furthermore, the second steel tubes 0210 of the top frame 021 are symmetrically arranged, and the second steel tubes 0210 and the third steel tubes 0211 together form a fork hole 02110 .
[0037] As described above, the forklift's fork leg is inserted into the fork hole 02110 to support and carry the top frame 021 away;
[0038] Furthermore, an inclined fourth steel pipe 0213 is welded to the top surface of the first steel pipe 0200 and the side surface of the second steel pipe 0210 .
[0039] As described above, the first steel tube 0200, the second steel tube 0210 and the fourth steel tube 0213 are combined to form a triangle, which is more stable and not easy to bend;
[0040] Furthermore, hanging rings 0214 are respectively installed on both sides of the top of the top frame 021.
[0041] As mentioned above, the lifting ring 0214 is in a circular shape, a hole is provided on the top frame 021, and the lifting ring 0214 passes through and is fixed; the rope is wrapped around the blade root 01 and passes through the lifting ring 0214 and is fixed.
[0042] Furthermore, the upper and lower surfaces of the first limiting member 022 are respectively provided with avoidance notches 0222 .
[0043] As described above, the avoidance notch 0222 serves to avoid collision with the connecting bolt 010 .
[0044] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.
[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;
[0046] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A wind turbine blade root support, characterized in that: The bottom of the blade root is provided with a plurality of surrounding connecting bolts; the bracket includes a bottom frame, and a curved arc-shaped top frame is provided on the bottom frame; the shape of the top frame matches the outer contour of the blade root; The top two sides of the top frame are respectively provided with detachable and adjustable first limiting members; the first limiting member is provided with a first waist-shaped hole, and the first limiting member is provided with a plurality of first limiting holes arranged in an annular manner; the fixing bolts pass through the top frame and the first waist-shaped holes and are screwed with nuts to fix them; A fixed second limiting member is installed at the bottom of the top frame; a second limiting hole with an opening facing upward is opened at the top of the second limiting member; the second limiting holes are arranged from high to low; The connecting bolt passes through the first limiting hole and the second limiting hole and is screwed on with a nut to fix it.
2. The wind turbine blade root support according to claim 1, characterized in that: The base frame includes a plurality of first steel pipes welded into a rectangular shape; the top frame includes a plurality of vertically arranged second steel pipes, and the second steel pipes are vertically welded and fixed to the first steel pipes; a horizontal third steel pipe is welded between two adjacent second steel pipes, the outer ends of the top frame are lowered toward the middle, and a curved arc-shaped first steel bar is welded on the top of the second steel pipe.
3. The wind turbine blade root support according to claim 2, characterized in that: A plurality of second steel pipes are arranged in two rows, and two first steel bars are respectively welded to the tops of the two rows of second steel pipes.
4. The wind turbine blade root support according to claim 3, characterized in that: The second steel pipes of the top frame are symmetrically arranged, and the second steel pipe and the third steel pipe are combined to form a fork hole.
5. The wind turbine blade root support according to claim 2, characterized in that: A fourth steel pipe which is set obliquely is welded to the top surface of the first steel pipe and the side surface of the second steel pipe.
6. The wind turbine blade root support according to claim 1, characterized in that: Lifting rings are respectively installed on both sides of the top of the top frame.
7. The wind turbine blade root support according to claim 1, characterized in that: The upper and lower surfaces of the first limiting member are respectively provided with avoidance notches.