Rotor and blade connecting structure and wind generating set

Abstract

The connecting structure comprises a connecting assembly, the connecting assembly comprises a fixing sleeve, a connecting rod, a pop-up assembly, a reinforcing assembly and an abutting assembly, the fixing sleeve is arranged on the outer side of a rotor body in a sleeving mode, one end of the connecting rod is inserted into the fixing sleeve through a first through hole in the peripheral face of the fixing sleeve, and the other end of the connecting rod is inserted into the fixing sleeve through a second through hole in the peripheral face of the fixing sleeve. One end of the connecting rod is sequentially provided with a limiting groove and a first threaded hole from inside to outside, and one end of the reinforcing assembly is downwards screwed into the fixing sleeve through a second threaded hole in the top surface of the fixing sleeve and is in threaded connection with the first threaded hole; the two abutting assemblies are symmetrically arranged on the upper side and the lower side of the limiting groove, one ends of the abutting assemblies are embedded into the limiting groove, and the other ends of the abutting assemblies penetrate out of the third through holes in the top face and the bottom face of the fixing sleeve. The fan blade can effectively solve the problem that the fan blade is difficult to maintain and replace due to the fact that the fan blade and the rotor are connected in a welded mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wind generating set, especially a rotor and blade connecting structure and wind generating set. BACKGROUND

[0002] Rotor and blade are one of the key components of wind generator, and their main function is to capture wind energy and convert it into mechanical energy. Fan blades are usually made of lightweight, high-strength materials, and the number of fan blades can be from one to three or more, and two-blade and three-blade designs are the most common.

[0003] Since the fan blades are exposed to the natural environment, they need to be regularly inspected and maintained to ensure their performance and life, so the blades need to be disassembled and installed.

[0004] The existing blades are all welded on the rotor, and when the blades need to be repaired and replaced, the existing technology is cumbersome to disassemble and install the blades, thereby reducing work efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, providing a rotor and blade connecting structure, which can effectively solve the problem of difficult blade repair and replacement caused by the welding connection between the fan blades and the rotor.

[0006] Another purpose of the utility model is to provide a wind generating set.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A rotor and blade connecting structure, comprising a rotor body and a blade body, the rotor body and the blade body are detachably connected through a connecting assembly, the connecting assembly comprises a fixing sleeve, a connecting rod, a pop-up assembly, a reinforcing assembly and a abutting assembly, the fixing sleeve is sleeved on the outer side of the rotor body, the outer peripheral surface of the fixing sleeve is provided with a first through hole for installing the connecting rod, one end of the connecting rod is inserted into the fixing sleeve through the first through hole and abuts one end of the pop-up assembly, the other end of the pop-up assembly is fixed to the outer peripheral surface of the rotor body, the other end of the connecting rod is used for connecting the blade body, one end of the connecting rod is sequentially provided from inside to outside with a limiting groove for limiting the abutting assembly and a first threaded hole for installing the reinforcing assembly, one end of the reinforcing assembly is screwed into the fixing sleeve downward through the second threaded hole on the top surface of the fixing sleeve and is in threaded connection with the first threaded hole, and the other end of the reinforcing assembly is located above the fixing sleeve, the abutting assembly has two and is symmetrically arranged on the upper and lower sides of the limiting groove, one end of the two abutting assemblies is respectively embedded in the limiting groove, and the other end of the two abutting assemblies respectively passes through the third through hole on the top surface and the bottom surface of the fixing sleeve.

[0009] Further, the ejecting assembly comprises a fixing seat fixed to the outer circumferential surface of the rotor body and a first spring, one end of which is in contact with the connecting rod and the other end of which is connected with the fixing seat.

[0010] Further, the outer circumferential surface of the rotor body is provided with a groove for mounting the fixing seat.

[0011] Further, the reinforcing assembly comprises a threaded rod and an adjusting knob arranged at one end of the threaded rod.

[0012] Further, the abutting assembly comprises a pull rod, a hand-holding block, an abutting block and a second spring, one end of the pull rod is connected with the abutting block, the abutting block is embedded in the limiting groove, the other end of the pull rod passes through the third through hole and is connected with the hand-holding block, the second spring is sleeved on the pull rod and located between the abutting block and the third through hole.

[0013] Further, the inner circumferential surface of the fixing sleeve and located below the first through hole is provided with a fixing plate for connecting the reinforcing assembly, and the fixing plate is provided with a third threaded hole for connecting the reinforcing assembly.

[0014] Another purpose of the utility model can be achieved by adopting the following technical scheme:

[0015] A wind turbine generator set comprises the connecting structure of the rotor and the blade.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The utility model discloses a connecting assembly is used for realizing the detachable installation between the blade and the rotor, and the structure is simple, and installation and disassembly are convenient, and the working efficiency of blade maintenance and replacement is greatly improved, and when the blade body is disassembled, the blade body is ejected through the elastic force of the first spring, so that the blade body is prevented from scratching the staff during disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional schematic view of the connecting structure of the utility model.

[0019] Figure 2 It is the sectional view of the connecting structure of the utility model.

[0020] Figure 3 It is the local schematic view of the connecting structure of the utility model Figure 1 .

[0021] Figure 4 It is the local schematic view of the connecting structure of the utility model Figure 2 .

[0022] Figure 5The utility model discloses a rotor body's structure schematic view. DETAILED DESCRIPTION

[0023] In order to make the utility model embodiment's purpose, technical scheme and advantage more clearly, below will combine the drawing in the utility model embodiment, clear, complete technical scheme in the utility model embodiment in the description, obviously, the described embodiment is the embodiment of the utility model, instead of all the embodiments, on the basis of the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making the creative labor belong to the range of the utility model protection.

[0024] Embodiment 1

[0025] As Figures 1 to 4 Shown, the utility model provides a kind of connecting structure of rotor and blade, including rotor body 1 and blade body 2, and rotor body 1 and blade body 2 are detachably connected by connecting assembly.

[0026] Connecting assembly includes fixed sleeve 3, connecting rod 4, ejecting assembly 5, reinforcing assembly 6 and abutting assembly 7, fixed sleeve 3 is sleeved in the outside of rotor body 1, and the outer circumferential surface of fixed sleeve 3 is provided with the first through-hole 301 for installing connecting rod 4, one end of connecting rod 4 is inserted into fixed sleeve 3 by the first through-hole 301, and is abutted to one end of ejecting assembly 5, the other end of ejecting assembly 5 is fixed to the outer circumferential surface of rotor body 1, the other end of connecting rod 4 is used to connect blade body 2, and the first threaded hole 402 for installing reinforcing assembly 6 is sequentially provided on the one end of connecting rod 4 from inside to outside for the limiting recess 401 for abutting assembly 7 Limiting, one end of reinforcing assembly 6 is screwed into fixed sleeve 3 by the second threaded hole 303 of fixed sleeve 3 top surface downwards, and is screw-connected with the first threaded hole 402, and the other end is located above fixed sleeve 3, and abutting assembly 7 has two, and is symmetrically arranged on the upper and lower sides of limiting recess 401, one end of two abutting assemblies 7 is embedded in limiting recess 401 respectively, and the other end is respectively threaded through the third through-hole 302 of fixed sleeve 3 top surface and bottom surface.

[0027] Ejecting assembly 5 includes fixed seat 501 and first spring 502, and fixed seat 501 is fixed to the outer circumferential surface of rotor body 1, one end of first spring 502 is in contact with connecting rod, and the other end is connected with fixed seat. For the installation of fixed seat, recess 101 for installing fixed seat 501 is provided on the outer circumferential surface of rotor body 1.

[0028] Reinforcing assembly 6 includes threaded rod 601 and adjusting knob 602 arranged at one end of threaded rod 601.

[0029] The abutting assembly 7 comprises a pull rod 701, a hand-held block 702, an abutting block 703 and a second spring 704, one end of the pull rod 701 is connected with the abutting block 703, the abutting block 703 is embedded in the limiting groove 401, the other end of the pull rod 701 passes through the third through hole 302 and is connected with the hand-held block 702, and the second spring 704 is sleeved on the pull rod 701 and is located between the abutting block 703 and the third through hole 302.

[0030] The inner periphery of the fixing sleeve 3 and located below the first through hole 301 is provided with a fixing plate 304 for connecting the reinforcing assembly 6, and the fixing plate 304 is provided with a third threaded hole 305 for connecting the reinforcing assembly 6.

[0031] As shown in the figure, Figure 5 The top of the rotor body 1 is provided with a top cover 102, a mounting seat 103 is formed at the center of the top cover 102, a transmission rod 104 is connected to the mounting seat, an axle hole is processed at the center of the transmission rod, an axle core 105 is rotatably connected to the inside of the axle hole, and a plurality of embedding grooves 106 are formed in the top of the cover in the circumferential direction.

[0032] When the blade body is installed, the two hand-held blocks are pulled outward, and the two pull rods are driven to move outward by the external force, the two second springs are deformed under the action of the external force, the two abutting blocks are separated from each other and are out of the limiting grooves; then the connecting rod is inserted into the first through hole, and then the worker pushes the connecting rod inward, the connecting rod presses the first spring inward, and the limiting grooves are aligned with the abutting blocks; at this time, the worker releases his hand, the second spring is no longer extruded and pops up to abut the limiting grooves; the adjusting knob is used to drive the threaded rod to rotate, and the threaded rod is screwed into the second threaded hole, the first threaded hole and the third threaded hole in turn, so that the connection between the blade body and the fixing sleeve is more firm.

[0033] When the blade body is disassembled, the worker first uses the adjusting knob to unscrew the threaded rod from the three threaded holes, then pulls the hand-held block outward, the hand-held block drives the abutting block away from the limiting groove, at this time the first spring is no longer stressed and the blade body is popped out, completing the disassembly of the blade body.

[0034] Embodiment 2:

[0035] The embodiment provides a wind turbine, which comprises the connecting structure of the rotor and the blade in embodiment 1.

[0036] The above is only a preferred embodiment of the utility model patent, but the protection scope of the utility model patent is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model patent concept of the utility model patent within the scope disclosed by the utility model patent, which belongs to the protection scope of the utility model patent.

Claims

1. A rotor and blade connecting structure comprising a rotor body and a blade body; characterized by: The rotor body and the blade body are detachably connected through a connecting assembly, the connecting assembly comprises a fixing sleeve, a connecting rod, a pop-up assembly, a reinforcing assembly and a abutting assembly, the fixing sleeve is sleeved on the outer side of the rotor body, the outer peripheral surface of the fixing sleeve is provided with a first through hole for mounting the connecting rod, one end of the connecting rod is inserted into the fixing sleeve through the first through hole and abuts against one end of the pop-up assembly, the other end of the pop-up assembly is fixed to the outer peripheral surface of the rotor body, the other end of the connecting rod is used for connecting the blade body, the one end of the connecting rod is sequentially provided from inside to outside with a limiting groove for limiting the abutting assembly and a first threaded hole for mounting the reinforcing assembly, one end of the reinforcing assembly is screwed into the fixing sleeve downward through a second threaded hole in the top surface of the fixing sleeve and is threadedly connected with the first threaded hole, and the other end of the reinforcing assembly is located above the fixing sleeve, the abutting assembly has two and is symmetrically arranged on the upper and lower sides of the limiting groove, one end of each of the two abutting assemblies is embedded into the limiting groove, and the other end of each of the two abutting assemblies passes through a third through hole in the top surface and the bottom surface of the fixing sleeve respectively.

2. The rotor and blade connection structure according to claim 1, characterized by: The pop-up assembly comprises a fixing seat and a first spring, one end of the first spring is in contact with the connecting rod, and the other end of the first spring is connected with the fixing seat.

3. The rotor and blade connection structure according to claim 2, characterized by: The outer peripheral surface of the rotor body is provided with a groove for mounting the fixing seat.

4. The rotor and blade connection structure according to claim 1, characterized by: The reinforcing assembly comprises a threaded rod and an adjusting knob arranged at one end of the threaded rod.

5. The rotor and blade connection structure according to claim 1, characterized by: The abutting assembly comprises a pull rod, a hand-holding block, an abutting block and a second spring, one end of the pull rod is connected with the abutting block, the abutting block is embedded into the limiting groove, the other end of the pull rod passes through the third through hole of the fixing sleeve and is connected with the hand-holding block, and the second spring is sleeved on the pull rod and located between the abutting block and the third through hole.

6. The rotor and blade connection structure according to claim 1, characterized by: The inner peripheral surface of the fixing sleeve and located below the first through hole is provided with a fixing plate for connecting the reinforcing assembly, and the fixing plate is provided with a third threaded hole for connecting the reinforcing assembly.

7. A wind power unit, characterized in that The connecting structure of the rotor and the blade comprises the connecting structure of the rotor and the blade according to any one of claims 1-6.

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