Anti-deformation tool for root of fan blade

Abstract

The invention belongs to the technical field of fans, and discloses a fan blade root anti-deformation tool which comprises a mounting seat and at least two supporting and adjusting structures. The at least two supporting adjusting structures are evenly distributed in the circumferential direction of the mounting base at intervals. The mounting base comprises at least two sub-mounting bases which are independently distributed in the circumferential direction, and the ends, close to each other, of any two adjacent sub-mounting bases are detachably connected to form the annular mounting base. The supporting adjusting structure comprises a connecting arm, a supporting plate and a locking nut. The first end, in the length direction, of the connecting arm is detachably connected with the sub-mounting base. The supporting plate is rotationally arranged at the second end, in the length direction, of the connecting arm in a sleeving mode and abuts against the limiting face of the connecting arm. The supporting plates are used for supporting the blades and are detachably connected with the blades. The locking nut is in threaded connection with the second end of the connecting arm and abuts against the supporting plate in the length direction of the connecting arm. The anti-deformation tool for the root of the fan blade is good in universality and good in transfer convenience.

Description

Technical Field

[0001] The invention relates to the technical field of fans, and in particular to a fan blade root anti-deformation tool. Background Art

[0002] A fan is a machine that relies on the mechanical energy input from an electric motor to increase the gas pressure and discharge the gas. It is widely used in various industrial occasions. Among them, the fan is mainly composed of blades and mounting seats. As the length of the blade gradually increases, the pitch circle diameter of the blade root will gradually increase. Therefore, the blade is prone to deformation when subjected to a large force, especially the blade root position where the force is concentrated and prone to deformation.

[0003] At present, in order to prevent the root of the blade from deforming, a support structure is usually set when the blade is molded or transported. A support structure in the prior art is mainly composed of a mounting seat, a mounting arm and an adjustment structure. The adjustment structure includes a connected screw, a nut, a mounting arm and a support plate. The screw is threadedly connected to the mounting arm and the support plate. The nut can lock the relative position of the bolt and the mounting arm. The support plate is detachably connected to the blade and can support the blade, so that the risk of deformation of the root of the blade can be reduced. However, this adjustment structure can only be applied to blades with fixed installation angles, and its versatility and transportation convenience need to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a fan blade root anti-deformation tooling to solve the problem that the supporting structure in the prior art is only suitable for blades with fixed installation angles, and the versatility and transportation convenience need to be improved.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A fan blade root anti-deformation tool, comprising a mounting seat and at least two support adjustment structures, wherein the at least two support adjustment structures are evenly spaced and distributed along the circumference of the mounting seat;

[0007] The mounting seat comprises at least two sub-mounting seats independently distributed along the circumferential direction, and the ends of any two adjacent sub-mounting seats close to each other can be detachably connected to form an annular mounting seat;

[0008] The support adjustment structure comprises:

[0009] A connecting arm, wherein a first end of the connecting arm along a length direction is detachably connected to the sub-mounting seat;

[0010] A support plate, the support plate is rotatably sleeved on the second end of the connecting arm along the length direction and abuts against the limiting surface of the connecting arm; the support plate is used to support the blade and is detachably connected to the blade;

[0011] A locking nut, wherein the locking nut is threadedly connected to the second end of the connecting arm and is pressed against the supporting plate along the length direction of the connecting arm.

[0012] As a preferred solution of the above-mentioned fan blade root anti-deformation tooling, an elastic cushion layer is provided on at least the area of ​​the support plate that supports the blade.

[0013] As a preferred solution of the above-mentioned anti-deformation tooling for the root of the wind turbine blade, the support plate is provided with a plurality of first connecting holes, and the plurality of first connecting holes are spaced apart on the periphery of the elastic cushion layer; the first bolt can pass through the first connecting hole and the second connecting hole of the blade and be threadedly connected with the first connecting nut.

[0014] As a preferred solution of the above-mentioned anti-deformation tooling for the root of the fan blade, the support adjustment structure also includes an elastic washer, which is sleeved on the second end of the connecting arm, one end of the elastic washer is elastically pressed against the support plate, and the other end is elastically pressed against the locking nut.

[0015] As a preferred solution of the above-mentioned fan blade root anti-deformation tooling, the mounting seat further includes at least two connecting structures, and the at least two connecting structures are arranged in a one-to-one correspondence with the at least two sub-mounting seats;

[0016] The connection structure includes a second bolt, a second connection nut and two connection seats, and the two connection seats are arranged and connected with two adjacent sub-mounting seats in a one-to-one correspondence; the second bolt passes through the two connection seats and is threadedly connected with the second connection nut.

[0017] As a preferred solution of the above-mentioned anti-deformation tooling for the root of the wind turbine blade, the sub-mounting seat includes a seat body and a cover body, the cover body is covered on the seat body and is detachably connected to the seat body, and the first end of the connecting arm along the length direction is inserted into the interior of the seat body and is detachably connected to the interior of the seat body.

[0018] As a preferred solution of the above-mentioned anti-deformation tooling for the root of the fan blade, a plurality of third connecting holes spaced apart along the length direction of the connecting arm are provided inside the seat body, and a fourth connecting hole is provided at the first end of the connecting arm along the length direction; a third bolt passes through the fourth connecting hole and one of the third connecting holes and is threadedly connected to the third connecting nut.

[0019] As a preferred solution of the above-mentioned fan blade root anti-deformation tooling, the cover body is provided with a handle.

[0020] As a preferred solution of the above-mentioned fan blade root anti-deformation tooling, along the length direction of the connecting arm, an operation avoidance groove is provided on the end of the support plate away from the mounting seat, and the locking nut is located in the operation avoidance groove.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a fan blade root anti-deformation tooling, which includes a mounting seat and at least two support adjustment structures. The at least two support adjustment structures are evenly spaced along the circumference of the mounting seat. The mounting seat includes at least two sub-mounting seats independently distributed along the circumference, and the ends of any two adjacent sub-mounting seats that are close to each other can be detachably connected to form an annular mounting seat. The support adjustment structure includes a connecting arm, a support plate and a locking nut. The first end of the connecting arm along the length direction is detachably connected to the sub-mounting seat. The support plate is rotatably sleeved on the second end of the connecting arm along the length direction and abuts against the limiting surface of the connecting arm. The support plate is used to support the blade and is detachably connected to the blade. The locking nut is threadedly connected to the second end of the connecting arm and abuts against the support plate along the length direction of the connecting arm.

[0023] The fan blade root anti-deformation tooling is provided with a support plate rotatably sleeved on the second end of the connecting arm along the length direction, and the deflection angle of the support plate can be adjusted according to the deflection angle of the blade. After the deflection angle of the support plate is adjusted to match the deflection angle of the blade, the locking nut is screwed so that one end of the support plate along the length direction of the connecting arm is pressed against the limit surface, and the other end of the support plate along the length direction of the connecting arm is pressed against the locking nut to fix the deflection angle of the support plate unchanged. Then the support plate and the blade are connected. Therefore, compared with the prior art, the versatility of the fan blade root anti-deformation tooling can be effectively improved.

[0024] Secondly, by setting any two adjacent sub-mounting seats so that one end close to each other can be detachably connected to form a ring-shaped mounting seat, and the first end of the connecting arm along the length direction is detachably connected to the sub-mounting seat, and the support plate is rotatably sleeved on the second end of the connecting arm along the length direction. When transporting the fan blade root anti-deformation tooling, the fan blade root anti-deformation tooling can be disassembled, thereby effectively reducing the difficulty of transportation, saving transportation space, and effectively improving the convenience of transportation.

[0025] Therefore, the fan blade root anti-deformation tooling has good versatility and convenient transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a fan blade root anti-deformation tooling provided by a specific embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the first part of the structure of the fan blade root anti-deformation tooling provided by a specific embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the second part of the structure of the fan blade root anti-deformation tooling provided by a specific embodiment of the present invention.

[0029] In the figure:

[0030] 1. Mounting seat; 11. Sub-mounting seat; 111. Seat body; 112. Cover body; 12. Connecting structure; 121. Second bolt; 122. Second connecting nut; 123. Connecting seat; 13. Handle;

[0031] 2. Support adjustment structure; 21. Connecting arm; 211. Fourth connecting hole; 22. Support plate; 221. Operation avoidance groove; 222. Cylindrical hole; 23. Elastic cushion layer; 24. First bolt; 25. Third bolt. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] like Figure 1 As shown, the present invention provides a fan blade root anti-deformation tooling, which includes a mounting seat 1 and at least two support adjustment structures 2. At least two support adjustment structures 2 are evenly spaced along the circumference of the mounting seat 1. The mounting seat 1 includes at least two sub-mounting seats 11 independently distributed along the circumference, and the ends of any two adjacent sub-mounting seats 11 close to each other can be detachably connected to form a ring-shaped mounting seat 1. The support adjustment structure 2 includes a connecting arm 21, a support plate 22 and a locking nut. The first end of the connecting arm 21 along the length direction is detachably connected to the sub-mounting seat 11. The support plate 22 is rotatably sleeved on the second end of the connecting arm 21 along the length direction and abuts against the limiting surface of the connecting arm 21. The support plate 22 is used to support the blade and is detachably connected to the blade. The locking nut is threadedly connected to the second end of the connecting arm 21 and abuts against the support plate 22 along the length direction of the connecting arm 21.

[0037] The fan blade root anti-deformation tooling is provided with a support plate 22 that is rotatably sleeved on the second end of the connecting arm 21 along the length direction, and the deflection angle of the support plate 22 can be adjusted according to the deflection angle of the blade. After the deflection angle of the support plate 22 is adjusted to match the deflection angle of the blade, the locking nut is screwed so that one end of the support plate 22 along the length direction of the connecting arm 21 is pressed against the limit surface, and the other end of the support plate 22 along the length direction of the connecting arm 21 is pressed against the locking nut to fix the deflection angle of the support plate 22 unchanged. Then the support plate 22 is connected to the blade. Therefore, compared with the prior art, the versatility of the fan blade root anti-deformation tooling can be effectively improved.

[0038] Secondly, by providing any two adjacent sub-mounting seats 11, the ends close to each other can be detachably connected to form a ring-shaped mounting seat 1, and the first end of the connecting arm 21 along the length direction is detachably connected to the sub-mounting seat 11, and the support plate 22 is rotatably sleeved on the second end of the connecting arm 21 along the length direction. When transporting the fan blade root anti-deformation tooling, the fan blade root anti-deformation tooling can be disassembled, thereby effectively reducing the difficulty of transportation, saving transportation space, and effectively improving the convenience of transportation.

[0039] Therefore, the fan blade root anti-deformation tooling has good versatility and convenient transportation.

[0040] It can be understood that the multiple blades are arranged in a one-to-one correspondence with the multiple supporting and adjusting structures 2 .

[0041] Specifically, if Figure 1 and Figure 2As shown, the second end of the connecting arm 21 is cylindrical, and the supporting plate 22 is provided with a cylindrical hole 222, so that the supporting plate 22 can be rotatably sleeved on the second end of the connecting arm 21. Specifically, the outer periphery of the second end of the connecting arm 21 is also provided with a thread, so that the locking nut can be threadedly connected to the second end of the connecting arm 21.

[0042] Among them, Figure 2 As shown, at least the area supporting the blades on the support plate 22 is provided with an elastic pad 23. By providing the elastic pad 23, the elastic pad 23 can reduce the risk of scratching or even damaging the support plate 22 and / or the blades during installation, and the reaction force applied to the blades by the elastic pad 23 during operation can improve the connection reliability between the support plate 22 and the blades.

[0043] Specifically, in this embodiment, the elastic cushion layer 23 is exemplified as a rubber layer.

[0044] Among them, Figure 2 As shown, the support plate 22 is provided with a plurality of first connection holes, and the plurality of first connection holes are spaced and distributed on the outer periphery of the elastic pad layer 23. The first bolt 24 can pass through the first connection hole and the second connection hole of the blade and be threadedly connected with the first connection nut. This is to achieve a detachable connection between the support plate 22 and the blade. Specifically, the reaction force applied by the elastic pad layer 23 to the blade can make the structure adjacent to the first connection nut always press against the first connection nut, so as to avoid the loosening of the first connection nut caused by vibration and the like, thereby effectively improving the connection reliability of the detachable connection between the support plate 22 and the blade.

[0045] Specifically, the first bolt 24 passes through the first connection hole and the second connection hole of the blade in sequence and is threadedly connected to the first connection nut. Then the reaction force applied by the elastic pad 23 to the blade can make the blade always press against the first connection nut. As an alternative, the first bolt 24 passes through the second connection hole and the first connection hole in sequence and is threadedly connected to the first connection nut. Then the reaction force applied by the elastic pad 23 to the blade can make the support plate 22 always press against the first connection nut.

[0046] Specifically, in this embodiment, Figure 2 As shown, the exemplary number of the first connection holes, the first bolts 24 and the first connection nuts are all eight.

[0047] The support adjustment structure 2 further includes an elastic washer, which is sleeved on the second end of the connecting arm 21, one end of the elastic washer elastically presses against the supporting plate 22, and the other end elastically presses against the locking nut. This arrangement can avoid the locking nut from loosening due to vibration, etc., thereby effectively improving the connection reliability between the supporting plate 22 and the connecting arm 21.

[0048] Among them, Figure 1 and Figure 3 As shown, the mounting seat 1 also includes at least two connection structures 12, and the at least two connection structures 12 are arranged in a one-to-one correspondence with at least two sub-mounting seats 11. The connection structure 12 includes a second bolt 121, a second connection nut 122 and two connection seats 123. The two connection seats 123 are arranged in a one-to-one correspondence with two adjacent sub-mounting seats 11 and connected. The second bolt 121 passes through the two connection seats 123 and is threadedly connected with the second connection nut 122. In this way, any two adjacent sub-mounting seats 11 can be detachably connected to facilitate disassembly and transportation.

[0049] Specifically, Figure 1 and Figure 3 As shown, the sub-mounting seat 11 includes a seat body 111 and a cover body 112, the cover body 112 is covered on the seat body 111 and is detachably connected to the seat body 111, and the first end of the connecting arm 21 along the length direction is inserted into the inside of the seat body 111 and is detachably connected to the inside of the seat body 111. Such an arrangement can further facilitate transportation. Specifically, the connection method between the cover body 112 and the seat body 111 is selected from threaded connection or clamping. Specifically, the connecting seat 123 is connected to the cover body 112. The connection seat 123 is connected to the cover body 112 in a manner selected from threaded connection or welding. Specifically, in the present embodiment, the connecting seat 123 is preferably L-shaped. In other embodiments, the connecting seat 123 can also be set to be T-shaped or rectangular.

[0050] Furthermore, if Figure 1 As shown, the seat body 111 is provided with a plurality of third connection holes spaced apart along the length direction of the connection arm 21, and the first end of the connection arm 21 along the length direction is provided with a fourth connection hole 211. The third bolt 25 passes through the fourth connection hole 211 and one of the third connection holes and is threadedly connected with the third connection nut. In this way, the spacing between the support plate 22 and the mounting seat 1 can be adjusted, so that the fan blade root anti-deformation tooling can be applied to blades of different sizes, thereby further improving the versatility of the fan blade root anti-deformation tooling.

[0051] Alternatively, if Figure 1 As shown, the cover body 112 is provided with a handle 13. It is convenient to carry the mounting base 1. The handle 13 is connected to the cover body 112 by threaded connection or welding.

[0052] Alternatively, if Figure 1 and Figure 2 As shown, along the length direction of the connecting arm 21, an operation avoidance groove 221 is provided on the end of the support plate 22 away from the mounting seat 1, and the locking nut is located in the operation avoidance groove 221. Such a configuration can reduce the volume and weight of the support adjustment structure 2 and improve the aesthetics of the support adjustment structure 2.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fan blade root anti-deformation tool, comprising a mounting seat (1) and at least two support adjustment structures (2), wherein the at least two support adjustment structures (2) are evenly spaced and distributed along the circumference of the mounting seat (1); characterized in that: The mounting seat (1) comprises at least two sub-mounting seats (11) independently distributed along the circumferential direction, and the ends of any two adjacent sub-mounting seats (11) close to each other can be detachably connected to form an annular mounting seat (1); The support adjustment structure (2) comprises: A connecting arm (21), wherein a first end of the connecting arm (21) along a length direction is detachably connected to the sub-mounting seat (11); A support plate (22), the support plate (22) being rotatably sleeved on the second end of the connecting arm (21) along the length direction and abutting against a limiting surface of the connecting arm (21); the support plate (22) is used to support the blade and is detachably connected to the blade; A locking nut, the locking nut being threadedly connected to the second end of the connecting arm (21) and being pressed against the supporting plate (22) along the length direction of the connecting arm (21).

2. The fan blade root anti-deformation tooling according to claim 1 is characterized in that: An elastic cushion layer (23) is provided on at least the region of the support plate (22) that supports the blades.

3. The fan blade root anti-deformation tooling according to claim 2 is characterized in that: The support plate (22) is provided with a plurality of first connection holes, which are spaced apart and distributed on the outer periphery of the elastic cushion layer (23); the first bolt (24) can pass through the first connection hole and the second connection hole of the blade and be threadedly connected with the first connection nut.

4. The fan blade root anti-deformation tooling according to claim 1, characterized in that: The support adjustment structure (2) also includes an elastic washer, which is sleeved on the second end of the connecting arm (21), one end of the elastic washer elastically presses against the support plate (22), and the other end elastically presses against the locking nut.

5. The fan blade root anti-deformation tooling according to any one of claims 1 to 4, characterized in that: The mounting seat (1) further comprises at least two connection structures (12), and the at least two connection structures (12) are arranged in a one-to-one correspondence with the at least two sub-mounting seats (11); The connection structure (12) comprises a second bolt (121), a second connection nut (122) and two connection seats (123); the two connection seats (123) are arranged and connected to two adjacent sub-mounting seats (11) in a one-to-one correspondence; the second bolt (121) passes through the two connection seats (123) and is threadedly connected to the second connection nut (122).

6. The fan blade root anti-deformation tooling according to claim 5, characterized in that: The sub-mounting seat (11) comprises a seat body (111) and a cover body (112); the cover body (112) is disposed on the seat body (111) and is detachably connected to the seat body (111); a first end of the connecting arm (21) along the length direction is plugged into the interior of the seat body (111) and is detachably connected to the interior of the seat body (111).

7. The fan blade root anti-deformation tooling according to claim 6, characterized in that: The seat body (111) is provided with a plurality of third connection holes spaced apart along the length direction of the connection arm (21); a fourth connection hole (211) is provided at the first end of the connection arm (21) along the length direction; a third bolt (25) passes through the fourth connection hole (211) and one of the third connection holes and is threadedly connected to a third connection nut.

8. The fan blade root anti-deformation tooling according to claim 6, characterized in that: The cover body (112) is provided with a handle (13).

9. The fan blade root anti-deformation tooling according to any one of claims 1 to 4, characterized in that: An operation avoidance groove (221) is provided on one end of the support plate (22) away from the mounting seat (1) along the length direction of the connecting arm (21), and the locking nut is located in the operation avoidance groove (221).

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