Blade detachable and replaceable structure of air feeder

Abstract

The utility model discloses a detachable and replaceable structure of an air feeder blade, and relates to the technical field of air feeder blade replacement. The device comprises a circular truncated cone, a plurality of connecting plates which are annularly and evenly distributed are fixedly installed on the outer side of the circular truncated cone, connecting bases are fixedly installed on the sides, away from the circular truncated cone, of the connecting plates, fixing bases are arranged on the sides, away from the connecting plates, of the connecting bases, and first empty grooves are formed in the fixing bases. A plurality of evenly-distributed springs are fixedly installed on the upper surface of the inner wall of the first empty groove, a movable plate is fixedly installed at the top ends of the springs and slides in the first empty groove, two symmetrically-distributed connecting rods are fixedly installed at the top end of the movable plate, and buttons are fixedly installed at the top ends of the connecting rods; a second empty groove rod is arranged at the top of the fixed seat; blades meeting unit load operation can be replaced at will, and meanwhile later maintenance of the blades of the air feeder is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of fan blade replacement, and in particular to a detachable and replaceable structure for fan blades. Background Art

[0002] Fan blades are one of the core components of wind turbines, primarily responsible for converting natural wind energy into electricity. Blade design and performance directly impact the efficiency and profitability of wind turbines. The blades for the primary fan and fan of Unit 8 of the power plant are made of cast aluminum alloy, which has low blade strength.

[0003] At present, the air volume under the unit's operating conditions cannot meet the full-load operation of the unit. It is necessary to increase the thickness of the blades and change the blade angle to meet the full-load operation conditions of the unit under the spot trading mode. However, the blades are usually fixed and cannot be disassembled and replaced at will, and the blade angle cannot be adjusted. Summary of the Invention

[0004] In order to solve the problem that the blades are usually fixed and cannot be disassembled and replaced at will, and the angle of the blades cannot be adjusted; the purpose of the utility model is to provide a detachable and replaceable structure for the fan blades.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A detachable and replaceable structure for fan blades, comprising a circular table, characterized in that: a plurality of evenly distributed annular connecting plates are fixedly mounted on the outer side of the circular table, a connecting seat is fixedly mounted on the side of the connecting plate away from the circular table, a fixing seat is provided on the side of the connecting seat away from the connecting plate, a first empty slot is opened inside the fixing seat, a plurality of evenly distributed springs are fixedly mounted on the upper surface of the inner wall of the first empty slot, a movable plate is fixedly mounted on the top of the spring, the movable plate slides in the first empty slot, two symmetrically distributed connecting rods are fixedly mounted on the top of the movable plate, and a button is fixedly mounted on the top of the connecting rod;

[0007] A second empty slot is provided on the top of the fixing seat, and two symmetrically distributed fixing rods are fixedly installed on the upper surface of the movable plate. A fixing plate is provided on the side of the fixing seat away from the connecting seat, and a blade is fixedly installed on the side of the fixing plate away from the fixing seat. Two symmetrically distributed insertion rods are fixedly installed on the side of the fixing plate close to the fixing seat, and a fixing slot for cooperating with the fixing rod is provided on the top of the insertion rod, and a slot for cooperating with the insertion rod is provided on the side of the fixing seat close to the fixing plate.

[0008] In one possible implementation, a fixing block is fixedly installed on one side of the fixing seat, a threaded rod is provided on the side of the fixing seat close to the fixing block, the threaded rod is threadedly connected to the fixing block, a plurality of annular evenly distributed threaded holes are opened on the side of the connecting seat close to the fixed block, the threaded rod is used in conjunction with the threaded holes, a rotating wheel is fixedly installed on the side of the threaded rod away from the threaded holes, and a rotating rod is fixedly installed on the side of the fixing seat close to the connecting seat, and the rotating rod is rotated and stuck in the connecting seat.

[0009] In a possible implementation, a plurality of annular evenly distributed stabilizing plates are fixedly mounted on the exterior of the fixing rod, and a stabilizing groove for use with the stabilizing plates is provided through the top end of the insertion rod at the position of the fixing groove.

[0010] In a possible implementation, clamping plates are fixedly mounted on both sides of the insertion rod, and a clamping slot for use with the clamping plate is formed on a side of the fixing seat close to the fixing plate.

[0011] In a possible implementation, a plurality of annular anti-slip strips evenly distributed are fixedly mounted on the outside of the rotating wheel.

[0012] In a possible implementation, the width of the connecting plate is smaller than the width of the connecting seat.

[0013] In a possible implementation, the shape of the second slot is consistent with the shape of the button, and the width of the first slot is consistent with the width of the movable plate.

[0014] In a possible implementation, a handle is fixedly mounted on an edge of one side of the fixing block close to the rotating wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This application allows for the free replacement of blades that meet the load requirements of the unit, and also facilitates the subsequent maintenance of the fan blades;

[0017] 2. This application realizes the adjustment of the blade angle, which can better control the air volume and pressure and adapt to different working environment requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1This is a schematic structural diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the structure after being disassembled in the utility model.

[0021] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 It is a schematic diagram of the internal structure of the fixing seat in the utility model.

[0023] Figure 5 For this utility model Figure 4 Enlarged view of point B in the middle.

[0024] In the figure: 1. Cone; 11. Connecting plate; 12. Connecting seat; 13. Fixed seat; 14. First empty slot; 15. Spring; 16. Moving plate; 17. Connecting rod; 18. Button; 19. Second empty slot; 2. Fixed rod; 21. Fixed plate; 22. Blade; 23. Insert rod; 24. Fixed slot; 25. Slot; 3. Fixed block; 31. Threaded rod; 32. Threaded hole; 33. Rotating wheel; 34. Rotating rod; 4. Stabilizing plate; 41. Stabilizing slot; 5. Card plate; 51. Card slot; 6. Handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example: Figure 1-5 As shown, the utility model provides a detachable and replaceable structure for a blower blade, comprising a truncated table 1, a plurality of annular evenly distributed connecting plates 11 are fixedly mounted on the outer side of the truncated table 1, a connecting seat 12 is fixedly mounted on the side of the connecting plate 11 away from the truncated table 1, a fixing seat 13 is provided on the side of the connecting seat 12 away from the connecting plate 11, a first empty slot 14 is opened inside the fixing seat 13, a plurality of evenly distributed springs 15 are fixedly mounted on the upper surface of the inner wall of the first empty slot 14, a movable plate 16 is fixedly mounted on the top of the spring 15, the movable plate 16 slides in the first empty slot 14, two symmetrically distributed connecting rods 17 are fixedly mounted on the top of the movable plate 16, and a button 18 is fixedly mounted on the top of the connecting rod 17;

[0027] A second empty slot 19 is provided at the top of the fixed seat 13, and two symmetrically distributed fixing rods 2 are fixedly installed on the upper surface of the movable plate 16. A fixing plate 21 is provided on the side of the fixed seat 13 away from the connecting seat 12, and a blade 22 is fixedly installed on the side of the fixing plate 21 away from the fixed seat 13. Two symmetrically distributed insertion rods 23 are fixedly installed on the side of the fixing plate 21 close to the fixed seat 13, and a fixing slot 24 for cooperating with the fixing rod 2 is provided through the top of the insertion rod 23, and a slot 25 for cooperating with the insertion rod 23 is provided on the side of the fixed seat 13 close to the fixing plate 21.

[0028] In one possible embodiment, a fixing block 3 is fixedly installed on one side of the fixing seat 13, and a threaded rod 31 is provided on the side of the fixing seat 13 close to the fixing block 3, and the threaded rod 31 is threadedly connected to the fixing block 3. A plurality of annular evenly distributed threaded holes 32 are opened on the side of the connecting seat 12 close to the fixing block 3, and the threaded rod 31 is used in conjunction with the threaded holes 32. A rotating wheel 33 is fixedly installed on the side of the threaded rod 31 away from the threaded holes 32, and a rotating rod 34 is fixedly installed on the side of the fixing seat 13 close to the connecting seat 12, and the rotating rod 34 is rotated and stuck in the connecting seat 12.

[0029] In one possible embodiment, a plurality of annular evenly distributed stabilizing plates 4 are fixedly mounted on the exterior of the fixing rod 2. A stabilizing groove 41 is formed through the top of the insertion rod 23 at the location of the fixing groove 24 and cooperates with the stabilizing plates 4. The provision of the stabilizing plates 4 and the stabilizing grooves 41 makes the fixing rod 2 more stable when it is stuck in the fixing groove 24.

[0030] In one possible embodiment, a clamping plate 5 is fixedly mounted on both sides of the insertion rod 23, and a clamping slot 51 is provided on one side of the fixing seat 13 close to the fixing plate 21 for use with the clamping plate 5. By providing the clamping plate 5 and the clamping slot 51, the insertion rod 23 stuck in the slot 25 is more stable.

[0031] In one possible embodiment, a plurality of annular and evenly distributed anti-slip strips are fixedly mounted on the outside of the rotating wheel 33. The anti-slip strips increase the friction between the hand and the rotating wheel 33, thereby making it easier to rotate the rotating wheel 33 and drive the threaded rod 31 to rotate.

[0032] In a possible implementation, the width of the connecting plate 11 is smaller than the width of the connecting seat 12 , so as to facilitate the installation of more blades 22 .

[0033] In one possible embodiment, the shape of the second slot 19 is consistent with the shape of the button 18, which makes it easier to press the button 18 and drive the connecting rod 17 to move downward. The width of the first slot 14 is consistent with the width of the movable plate 16, which facilitates the up and down movement of the movable plate 16.

[0034] In one possible embodiment, a handle 6 is fixedly mounted on an edge of the fixing block 3 near the rotating wheel 33. By providing the handle 6, when the blade angle of the blade 22 needs to be adjusted, the fixing base 13, the fixing plate 21, and the blade 22 are rotated by rotating the handle 6, thereby making it easier to adjust the blade angle of the blade 22.

[0035] Working principle: In actual use, several blades 22, insertion rods 23, and fixed rods 2 are selected and installed according to actual conditions. When the blade 22 needs to be disassembled and replaced, the button 18 is pressed downward to drive the connecting rod 17 to move downward in the second empty slot 19, and the movable plate 16 moves downward in the first empty slot 14. When the movable plate 16 moves downward, the spring 15 contracts, and at the same time, the fixed rod 2 moves downward, so that the fixed rod 2 is disengaged from the fixed slot 24 on the corresponding insertion rod 23. Then, keeping the pressing state, manually pull the fixing plate 21 and the blade 22 outward to disengage the insertion rod 23 from the corresponding slot 25, thereby realizing the disassembly of the blade 22. After disassembling one, release the button 18 and repeat the operation to disassemble the other blades 22.

[0036] When the blade 22 needs to be installed, the same operation is performed, pressing the button 18, inserting the insertion rod 23 into the corresponding slot 25, so that the fixing plate 21 fits the fixing seat 13, and then releasing the button 18. Under the action of the spring 15, the movable plate 16, the fixing rod 2, the connecting rod 17, and the button 18 move upward, so that the fixing rod 2 is stuck in the corresponding fixing groove 24, thereby achieving the installation of the blade 22;

[0037] When the blade profile angle of the blade 22 needs to be adjusted, the wheel 33 is rotated to drive the threaded rod 31 to rotate. The threaded rod 31 is threadedly connected to the fixing block 3 and the threaded hole 32, so that the threaded rod 31 is disengaged from the threaded hole 32. Then, the fixing seat 13 and the blade 22 are manually rotated. As the fixing seat 13 rotates, the rotating rod 34 is driven to rotate in the connecting seat 12. When it is adjusted to the desired position, the threaded rod 31 corresponds to the threaded hole 32. Then, the wheel 33 is rotated in the opposite direction to drive the threaded rod 31 to rotate, so that the threaded rod 31 is stuck in the corresponding threaded hole 32, thereby fixing the fixing seat 13 to prevent the blade 22 from automatically rotating during use, affecting the use of the blade 22. The operation can be performed in sequence.

[0038] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A detachable and replaceable structure for fan blades, comprising a frustum (1), characterized in that: A plurality of evenly distributed annular connecting plates (11) are fixedly mounted on the outer side of the truncated table (1), a connecting seat (12) is fixedly mounted on the side of the connecting plate (11) away from the truncated table (1), a fixing seat (13) is provided on the side of the connecting seat (12) away from the connecting plate (11), a first slot (14) is provided inside the fixing seat (13), a plurality of evenly distributed springs (15) are fixedly mounted on the upper surface of the inner wall of the first slot (14), a movable plate (16) is fixedly mounted on the top of the spring (15), the movable plate (16) slides in the first slot (14), two symmetrically distributed connecting rods (17) are fixedly mounted on the top of the movable plate (16), and a button (18) is fixedly mounted on the top of the connecting rod (17); A second empty slot (19) is provided on the top of the fixing seat (13); two symmetrically distributed fixing rods (2) are fixedly installed on the upper surface of the movable plate (16); a fixing plate (21) is provided on the side of the fixing seat (13) away from the connecting seat (12); a blade (22) is fixedly installed on the side of the fixing plate (21) away from the fixing seat (13); two symmetrically distributed insertion rods (23) are fixedly installed on the side of the fixing plate (21) close to the fixing seat (13); a fixing slot (24) for use with the fixing rod (2) is provided through the top of the insertion rod (23); a slot (25) for use with the insertion rod (23) is provided on the side of the fixing seat (13) close to the fixing plate (21).

2. The detachable and replaceable structure of the fan blade according to claim 1, characterized in that: A fixing block (3) is fixedly mounted on one side of the fixing seat (13); a threaded rod (31) is provided on a side of the fixing seat (13) close to the fixing block (3); the threaded rod (31) is threadedly connected to the fixing block (3); a plurality of annular threaded holes (32) are opened on a side of the connecting seat (12) close to the fixing block (3); the threaded rod (31) and the threaded holes (32) are used in conjunction with each other; a rotating wheel (33) is fixedly mounted on a side of the threaded rod (31) away from the threaded holes (32); a rotating rod (34) is fixedly mounted on a side of the fixing seat (13) close to the connecting seat (12); the rotating rod (34) is rotatably clamped in the connecting seat (12).

3. The detachable and replaceable structure of the fan blade according to claim 1, characterized in that: A plurality of annular evenly distributed stabilizing plates (4) are fixedly mounted on the outside of the fixing rod (2), and a stabilizing groove (41) for use with the stabilizing plate (4) is provided through the top end of the inserting rod (23) at the position of the fixing groove (24).

4. The detachable and replaceable structure for fan blades according to claim 1, characterized in that: A clamping plate (5) is fixedly mounted on both sides of the insertion rod (23), and a clamping slot (51) for use with the clamping plate (5) is provided on a side of the fixing seat (13) close to the fixing plate (21).

5. The detachable and replaceable structure of the fan blade according to claim 2, characterized in that: A plurality of annular evenly distributed anti-slip strips are fixedly mounted on the outside of the rotating wheel (33).

6. The detachable and replaceable structure for fan blades according to claim 1, characterized in that: The width of the connecting plate (11) is smaller than the width of the connecting seat (12).

7. The detachable and replaceable structure for fan blades according to claim 1, characterized in that: The shape of the second slot (19) is consistent with the shape of the button (18), and the width of the first slot (14) is consistent with the width of the moving plate (16).

8. The detachable and replaceable structure for fan blades according to claim 2, characterized in that: A handle (6) is fixedly mounted on an edge of one side of the fixed block (3) close to the rotating wheel (33).

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