CN212003454U - Wind turbine sectional blade connecting structure - Google Patents

Abstract

The utility model discloses a wind energy conversion system segmentation blade connection structure relates to wind energy conversion system segmentation blade installation technical field, specifically is a wind energy conversion system segmentation blade connection structure, including connecting plate, segmentation blade body. This wind energy conversion system segmentation blade connection structure, through the stress column, the cooperation of spread groove is used, utilize the stress column to cup joint to the stress groove inner chamber that segmentation blade body one end was seted up, and then enlarge the connection area between connecting plate and the segmentation blade body, increase the stress area when segmenting the blade body and rotating, avoid appearing the segmentation blade body when rotating and the tie point between the coupling mechanism problem that appears warping, utilize the spread groove to receive the locating plate simultaneously, make the surface of locating plate and the surface of segmentation blade body parallel, and be in the smooth surface, can reduce the influence that coupling mechanism brought the segmentation blade body pivoted, the practicality of this wind energy conversion system segmentation blade connection structure has been improved.

Description

Wind turbine sectional blade connecting structure

Technical Field

The utility model relates to a wind energy conversion system segmentation blade installation technical field specifically is a wind energy conversion system segmentation blade connection structure.

Background

A wind turbine is an electric power device that converts wind energy into mechanical power, and the mechanical power drives a rotor to rotate and finally outputs alternating current. The wind-driven generator generally comprises components such as a wind wheel, a generator (including a device), a direction regulator (empennage), a tower frame, a speed-limiting safety mechanism, an energy storage device and the like, the working principle of the wind-driven generator is simpler, the wind wheel rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator is driven by the wind wheel shaft to rotate to generate electricity. Wind energy is also solar energy in a broad sense, so that a wind power generator, which is a solar energy heat source, the heat energy utilizing generator with atmosphere as working medium has wind turbine blades as important parts and power source for wind turbine, but the wind turbine blade has larger volume and longer length, which is very inconvenient for transportation, so the segmented blade of the wind turbine is developed, the blade is divided into a plurality of segments for transportation, the segmented blades are connected by using a connecting mechanism during installation to form a complete blade, however, when the existing blade connecting structure is connected, the connecting flange is generally adopted to connect the two blades, the connecting position is provided with a protrusion and a stress point depends on a bolt, the stress point is deformed under the action of a long time, and the condition that the blades and the connecting mechanism fall off occurs, so that the wind turbine sectional blade connecting structure is provided.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a wind energy conversion system segmentation blade connection structure has solved the problem of proposing among the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a wind energy conversion system segmentation blade connection structure, includes connecting plate, segmentation blade body, the upper and lower both sides of connecting plate all have the locating plate through first fixing bolt fixed mounting, the both sides screw thread on locating plate surface has cup jointed the second fixing bolt, the one end screw thread of second fixing bolt cup joints the inside to the segmentation blade body, the equal fixed mounting in both sides of connecting plate has the support column, the one end fixedly connected with joint post of support column, the inner chamber activity of joint post has cup jointed the post of locking, the first supporting spring of the one end fixedly connected with of the post of locking, the one end fixed connection of first supporting spring to the inside of joint post, the both sides of connecting plate all are fixed with the stress column.

In a further embodiment, a connecting groove is formed in the surface of the segmented blade body, a clamping groove is formed in one end of the segmented blade body, a dead locking groove is formed in the surface of the segmented blade body, the dead locking groove is located in an inner cavity of the connecting groove, and a stressed groove is formed in one end of the segmented blade body.

In a further embodiment, a receiving groove is formed in the surface of the positioning plate, a clamping plate is movably sleeved in an inner cavity of the receiving groove, a second supporting spring is fixedly connected to one end of the clamping plate, one end of the second supporting spring is fixedly connected with the positioning plate, and one end of the clamping plate is movably sleeved in an inner cavity of the locking groove.

In a further embodiment, the supporting column and the positioning plate are respectively movably sleeved in the inner cavity of the clamping groove.

In a further embodiment, one end of the stress column is movably sleeved in the inner cavity of the stress groove.

In a further embodiment, the surface of the positioning plate is parallel to the surface of the segmented blade body, and the positioning plate is positioned in the inner cavity of the connecting groove.

The utility model provides a wind energy conversion system segmentation blade connection structure possesses following beneficial effect:

1. the wind turbine sectional blade connecting structure is used by matching a connecting plate, a positioning plate, a supporting column, a locking column and a clamping and connecting plate, when the sectional blade body is connected and installed, the positioning plate is installed by using the connecting plate, the positioning plate is connected with the sectional blade body by using a second fixing bolt, the supporting column and the locking column are clamped by using the clamping groove, the locking column is ejected out and clamped to the inner cavity of the clamping groove under the supporting action of the first supporting spring, meanwhile, the clamping plate is used for ejecting and clamping the inner cavity of the locking groove under the supporting action of the second supporting spring, further locking the sectional blade body in the inner cavity of the positioning plate to realize the installation and connection of the sectional blade body, meanwhile, the condition that the sectional blade body and the connecting structure fall off can be avoided, and the stability of the sectional blade connecting structure of the wind turbine is improved.

2. This wind energy conversion system segmentation blade connection structure, through the stress column, the cooperation of spread groove is used, utilize the stress column to cup joint to the stress groove inner chamber that segmentation blade body one end was seted up, and then enlarge the connection area between connecting plate and the segmentation blade body, increase the stress area when segmenting the blade body and rotating, avoid appearing the segmentation blade body when rotating and the tie point between the coupling mechanism problem that appears warping, utilize the spread groove to receive the locating plate simultaneously, make the surface of locating plate and the surface of segmentation blade body parallel, and be in the smooth surface, can reduce the influence that coupling mechanism brought the segmentation blade body pivoted, the practicality of this wind energy conversion system segmentation blade connection structure has been improved.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic structural view of the clamping plate of the present invention.

In the figure: 1. a connecting plate; 2. a segmented blade body; 3. a first support spring; 4. a support pillar; 5. a stress column; 6. a clamping groove; 7. a clamping and connecting plate; 8. a receiving slot; 9. a second support spring; 10. a clamping column; 11. positioning a plate; 12. a first fixing bolt; 13. a stress groove; 14. locking the column; 15. a second fixing bolt; 16. connecting grooves; 17. the slot is locked.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: a wind turbine segmented blade connecting structure comprises a connecting plate 1 and a segmented blade body 2, wherein a connecting groove 16 is formed in the surface of the segmented blade body 2, a clamping groove 6 is formed in one end of the segmented blade body 2, a locking groove 17 is formed in the surface of the segmented blade body 2, the locking groove 17 is located in an inner cavity of the connecting groove 16, a stress groove 13 is formed in one end of the segmented blade body 2, positioning plates 11 are fixedly mounted on the upper side and the lower side of the connecting plate 1 through first fixing bolts 12, the surface of each positioning plate 11 is parallel to the surface of the segmented blade body 2, each positioning plate 11 is located in the inner cavity of the connecting groove 16, the surface of each positioning plate 11 is tightly attached to the inner cavity of the corresponding connecting groove 16, the surface of each positioning plate 11 is a smooth surface, the positioning plates 11 are folded through the connecting grooves 16, the surfaces of the positioning plates 11, the influence of airflow impacting the positioning plate 11 is avoided, the influence of a connecting mechanism on the rotation of the segmented blade body 2 is reduced, the stability of the connecting structure of the segmented blade of the wind turbine is improved, the surface of the positioning plate 11 is provided with a receiving groove 8, the inner cavity of the receiving groove 8 is movably sleeved with a clamping plate 7, one end of the clamping plate 7 is fixedly connected with a second supporting spring 9, one end of the second supporting spring 9 is fixedly connected with the positioning plate 11, one end of the clamping plate 7 is movably sleeved with the inner cavity of a locking groove 17, two threads on the surface of the positioning plate 11 are sleeved with second fixing bolts 15, one end of each second fixing bolt 15 is sleeved with the inner part of the segmented blade body 2, two sides of the connecting plate 1 are fixedly provided with supporting columns 4, the supporting columns 4 and the positioning plate 11 are respectively movably sleeved with the inner cavity of the clamping groove 6, when the segmented blade body, the positioning plate 11 is installed by using the connecting plate 1, the positioning plate 11 is connected with the segmented blade body 2 by using a second fixing bolt 15, the supporting column 4 and the locking column 14 are clamped by using the clamping groove 6, the locking column 14 is ejected out and clamped to the inner cavity of the clamping groove 6 under the supporting action of the first supporting spring 3, the clamping plate 7 is ejected out and clamped to the inner cavity of the locking groove 17 under the supporting action of the second supporting spring 9, the segmented blade body 2 is locked to the inner cavity of the positioning plate 11, the installation and connection of the segmented blade body 2 are realized, the condition that the segmented blade body 2 and the connecting structure fall off can be avoided, the stability of the segmented blade connecting structure of the wind turbine is improved, one end of the supporting column 4 is fixedly connected with the clamping column 10, the locking column 14 is movably sleeved in the inner cavity of the clamping column 10, one end of the locking column 14 is fixedly connected with the first supporting spring 3, one end fixed connection to joint post 10's of first supporting spring 3 inside, the both sides of connecting plate 1 all are fixed with stress column 5, stress column 5's one end movable sleeve connects to the inner chamber of atress groove 13, utilize stress column 5 to cup joint to the atress groove 13 inner chamber that 2 one ends of segmentation blade body were seted up, and then enlarge the connection area between connecting plate 1 and the segmentation blade body 2, increase the atress area when segmenting blade body 2 and rotating, avoid appearing the segmentation blade body 2 when rotating and the problem that the tie point between the coupling mechanism appears warping, the practicality of this wind energy conversion system segmentation blade connection structure has been improved.

To sum up, this wind energy conversion system segmentation blade connection structure, during the use, at first cup joint stress column 5 and support column 4 with connecting plate 1 both sides to stress groove 13 and joint groove 6's inner chamber respectively, the dead post of lock 14 supports the dead post of lock 14 when getting into the one end of joint groove 6 inner chamber, make the dead post of lock 14 pop out, the joint is to the inner chamber of joint groove 6, then use a plurality of fixing bolt 12 to fix the locating plate 11 on the surface of connecting plate 1, use second fixing bolt 15 to be connected between locating plate 11 and the segmentation blade body 2 after fixed, joint plate 7 pops out under the effect of second supporting spring 9, and then the joint is to the inner chamber of the dead groove 17 of lock, connect between two segmentation blade bodies 2, can.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a wind turbine segmentation blade connection structure, includes connecting plate (1), segmentation blade body (2), its characterized in that: the upper and lower both sides of connecting plate (1) all have locating plate (11) through first fixing bolt (12) fixed mounting, the both sides screw thread on locating plate (11) surface has cup jointed second fixing bolt (15), the one end screw thread of second fixing bolt (15) cup joints to the inside of segmentation blade body (2), the equal fixed mounting in both sides of connecting plate (1) has support column (4), the one end fixedly connected with joint post (10) of support column (4), the inner chamber activity of joint post (10) has cup jointed and has locked post (14), the first supporting spring (3) of the one end fixedly connected with of the dead post (14) of lock, the one end fixed connection of first supporting spring (3) is to the inside of joint post (10), the both sides of connecting plate (1) all are fixed with atress post (5).

2. The wind turbine sectional blade connection structure of claim 1, wherein: connecting groove (16) have been seted up on the surface of segmentation blade body (2), joint groove (6) have been seted up to the one end of segmentation blade body (2), dead groove (17) of lock has been seted up on the surface of segmentation blade body (2), dead groove (17) of lock is located the inner chamber of connecting groove (16), atress groove (13) have been seted up to the one end of segmentation blade body (2).

3. The wind turbine sectional blade connection structure of claim 1, wherein: the surface of locating plate (11) has been seted up and has been received groove (8), the inner chamber activity cover of receiving groove (8) has connect joint board (7), the one end fixedly connected with second supporting spring (9) of joint board (7), the one end and locating plate (11) fixed connection of second supporting spring (9), the one end activity cover of joint board (7) connects to the inner chamber of locking groove (17).

4. The wind turbine sectional blade connection structure of claim 1, wherein: the supporting column (4) and the positioning plate (11) are movably sleeved with the inner cavity of the clamping groove (6) respectively.

5. The wind turbine sectional blade connection structure of claim 1, wherein: one end of the stress column (5) is movably sleeved in the inner cavity of the stress groove (13).

6. The wind turbine sectional blade connection structure of claim 1, wherein: the surface of the positioning plate (11) is parallel to the surface of the segmented blade body (2), and the positioning plate (11) is positioned in the inner cavity of the connecting groove (16).

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