CN212106144U

CN212106144U - Fan bracket anti-vibration structure of wind driven generator

Info

Publication number: CN212106144U
Application number: CN202020803973.XU
Authority: CN
Inventors: 昌宪治
Original assignee: Jiangsu Wanshun New Energy Technology Co ltd
Current assignee: Jiangsu Wanshun New Energy Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-08
Anticipated expiration: 2030-05-14

Abstract

The utility model relates to a aerogenerator technical field, concretely relates to aerogenerator fan bracket anti-vibration structure, including solid fixed ring, fan bracket, connecting block, keep away dead slot, fan flabellum, fixed cover, jack, round platform portion, blind hole, bar breach, taper groove, screw thread section, screw hole, lug. The utility model has the advantages that: through circular truncated cone portion block in the taper groove, and by the lug to circular truncated cone portion spacing, in addition through the taper fit of taper groove inner wall to circular truncated cone portion, make the radial float of pivot less, and then reduced fan blade's vibrations, the fan support has been improved to at least a certain extent, fan blade's life, the radial effort of circular truncated cone portion external conical surface of taper groove inner wall in addition, make the external conical surface of circular truncated cone portion produce elastic contraction, make circular truncated cone portion can follow taper groove endwise slip in the taper groove, and then make the pivot can firm the installation on fan support, reduce its axial float.

Description

Fan bracket anti-vibration structure of wind driven generator

Technical Field

The utility model relates to a aerogenerator technical field, concretely relates to aerogenerator fan bracket anti-vibration structure.

Background

The wind power generator is an electric power device which converts wind energy into mechanical work, and the mechanical work drives a rotor to rotate so as to finally output alternating current. The wind-driven generator generally comprises wind wheels, a generator (including a device), a direction regulator (empennage), a tower, a speed-limiting safety mechanism, an energy storage device and other components. The wind driven generator has simple working principle, 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 rotates under the drive of the wind wheel shaft to generate electricity. In a broad sense, wind energy is also solar energy, so that the wind power generator is a heat energy utilization generator which uses solar energy as a heat source and uses the atmosphere as a working medium.

As known from the blade structure of a movable wind turbine disclosed in chinese patent No. CN201020212707.6, a fan bracket of an existing wind turbine is hinged to a fan blade through a hinge shaft (referred to as a pivot shaft in the present application), and after the hinge shaft is used for a long time, a certain amount of axial and radial play (mainly radial play) is generated due to abrasion, so that the fan blade may generate vibration and noise during operation, which affects the service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide a aerogenerator fan bracket anti-vibration structure, it can realize solving prior art's problem to a certain extent at least.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

the utility model provides a aerogenerator fan bracket anti-vibration structure, includes rotationally the suit and changes epaxial solid fixed ring in outside, gu be equipped with a plurality of fan support that extend to its radial outside along its axial array on the fixed ring is global, fan support keeps away from solid fixed ring one end and has the connecting block through installation pivot pin joint, corresponds set up the empty groove of keeping away that supplies the connecting block to freely pass through on the fan support, fan blade has set firmly on the connecting block, the vertical fixed cover that is equipped with on the fan support, fixed cover is equipped with the jack that supplies pivot sliding fit to insert, through-hole form, the coaxial circular platform portion that is equipped with in pivot upper end, circular platform portion diameter scales up from inside to outside in proper order along the pivot axial, coaxially is equipped with the blind hole that extends to the pivot on it, be equipped with the bar breach of a plurality of and blind hole intercommunication along its axial array on the circular platform portion external conical surface, The locking cover is provided with a threaded hole matched with the threaded section in a threaded manner, the locking cover is coaxially provided with a convex block abutted against the end face of the circular truncated cone portion, and when the locking cover is screwed on the threaded section, the convex block is driven to abut against the circular truncated cone portion, and the circular truncated cone portion slides in the tapered groove.

As a further optimization of the technical solution, a weight-reducing slot in the form of a through hole is provided on the fan bracket.

As a further optimization of the above technical solution, a plurality of planes are provided on the circumferential surface of the locking cover.

As a further optimization of the above solution, the circular table portion is made of spring steel material.

As the further optimization of the technical scheme, the outer walls of the two sides of the connecting block in the width direction are respectively provided with a limiting block, and the limiting blocks cannot freely pass through the clearance grooves.

The utility model has the advantages that: through circular truncated cone portion block in the taper groove, and by the lug to circular truncated cone portion spacing, in addition through the taper fit of taper groove inner wall to circular truncated cone portion, make the radial drunkenness of pivot less, and then the vibrations of fan flabellum have been reduced, fan support has been improved to at least a certain extent, fan flabellum's life, the radial effort of circular truncated cone portion external conical surface is gone up to the taper groove inner wall in addition, make the external conical surface of circular truncated cone portion produce elastic contraction, make circular truncated cone portion can follow taper groove axial slip in the taper groove, and then make the pivot can firm the installation on fan support, reduce its axial drunkenness, set up the stopper, rotate to the connecting block through two stoppers and carry on spacingly, make fan flabellum rotate to have certain spacing, avoid fan flabellum and fan.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the perspective structure of FIG. 1;

FIG. 3 is a schematic top view of the three-dimensional structure of FIG. 1;

FIG. 4 is a schematic perspective view of the locking cover of the present invention;

the reference numerals are explained below:

1-fan blade, 2-connecting block, 3-limiting block, 4-locking cover, 5-blind hole, 6-threaded hole, 7-threaded section, 8-circular truncated part, 9-strip-shaped gap, 10-fixing sleeve, 11-fan bracket, 12-lightening groove, 13-fixing ring, 14-pivot, 15-conical groove, 16-clearance groove and 17-lug.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, fig. 1-4 show a fan bracket anti-vibration structure of a wind driven generator, which includes a fixing ring 13 rotatably sleeved on an external rotating shaft, a plurality of fan brackets 11 extending radially outward are arranged on the circumferential surface of the fixing ring 13 along the axial direction thereof in an array, one end of the fan bracket 11 away from the fixing ring 13 is pivotally connected with a connecting block 2 through a mounting pivot 14, a clearance groove 16 for the connecting block 2 to freely pass through is formed in the corresponding fan bracket 11, a fan blade 1 is fixedly arranged on the connecting block 2, a fixing sleeve 10 is vertically arranged on the fan bracket 11, a through-hole type insertion hole for the sliding insertion of the pivot 14 is formed in the fixing sleeve 10, a circular table portion 8 is coaxially arranged at the upper end of the pivot 14, the diameter of the circular table portion 8 increases gradually from inside to outside along the axial direction of the pivot 14, and a blind hole 5 extending toward the pivot 14, be equipped with a plurality of bar breach 9 that communicate with blind hole 5 along its axial array on the 8 outer conical surfaces of round platform portion, correspond be equipped with on the fixed cover 10 with 8 appearance adaptations of round platform portion and supply the taper groove 15 of 8 sliding fit block of round platform portion, fixed cover 10 upper end is equipped with screw thread section 7, screw thread cover is equipped with locking lid 4 on the screw thread section 7, and is corresponding be equipped with on the locking lid 4 with 7 screw thread complex screw hole 6 of screw thread section, the coaxial lug 17 that offsets with 8 terminal surfaces of round platform portion that is equipped with on the locking lid 4, when the screw thread is screwed on screw thread section 7, the drive lug 17 supports round platform portion 8, and makes round platform portion 8 slides in taper groove 15.

The fan support 11 is provided with the weight reduction grooves 12 in the form of through holes, so that the overall weight of the fan support 11 is reduced.

Be equipped with a plurality of planes on the locking lid 4 global, be convenient for use outside instrument centre gripping locking lid 4 rotates locking lid 4.

The circular table portion 8 is made of spring steel, so that the circular table portion 8 has better elastic deformation capacity.

Respectively be equipped with a stopper 3 on the 2 width direction both sides outer walls of connecting block, stopper 3 can not freely lean on 11 both sides outer walls of fan bracket through two stoppers 3 through keeping away empty groove 16 respectively for connecting block 2's rotation can be spacing, and then makes fan blade 1 rotate and has spacingly.

The utility model discloses when using: the pivot penetrates into the fan support through the insertion hole of the fixed sleeve, the circular table portion is clamped in the conical groove, the threaded hole in the locking cover is screwed with the threaded section of the upper fixed sleeve, the locking cover is screwed on the fixed sleeve, the convex block is abutted against the circular table portion, the circular table portion slides in the conical groove along the axial direction of the conical groove, the inner wall of the conical groove has radial acting force on the outer conical surface of the circular table portion, meanwhile, the blind hole and the strip-shaped notch are formed in the circular table portion, the outer conical surface of the circular table portion is elastically contracted, the outer conical surface of the circular table portion is driven to elastically contract, elastic potential energy of the outer conical surface of the circular table portion to the inner wall of the conical groove is utilized, the circular table portion and the inner wall of the conical groove have large static friction force, the pivot can be stably installed on the fan support, radial and axial movement of the pivot is avoided, and the.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a aerogenerator fan bracket anti-vibration structure, includes rotationally suit fixed ring (13) on the external rotating shaft, be equipped with a plurality of fan support (11) that extend to its radial outside along its axial array on fixed ring (13) global, fan support (11) keep away from fixed ring (13) one end through installation pivot (14) pin joint have connecting block (2), corresponding fan support (11) are seted up and are supplied connecting block (2) free clearance groove (16) that pass through, fan flabellum (1) has set firmly on connecting block (2), characterized in that, vertical fixed cover (10) that is equipped with on fan support (11), be equipped with on fixed cover (10) and supply pivot (14) sliding fit insertion, the jack of through-hole form, pivot (14) upper end coaxial be equipped with round platform portion (8), round platform portion (8) diameter increases progressively from inside to outside along pivot (14) axial in proper order, a blind hole (5) extending towards the pivot (14) is coaxially arranged on the circular table part, a plurality of strip-shaped notches (9) communicated with the blind hole (5) are arranged on the outer conical surface of the circular table part (8) along the axial direction in an array manner, the corresponding fixed sleeve (10) is provided with a conical groove (15) which is matched with the shape of the circular table part (8) and is used for the sliding fit and clamping of the circular table part (8), the upper end part of the fixed sleeve (10) is provided with a thread section (7), the thread section (7) is sleeved with a locking cover (4), the corresponding locking cover (4) is provided with a threaded hole (6) which is in threaded fit with the threaded section (7), a convex block (17) which is propped against the end surface of the circular table part (8) is coaxially arranged on the locking cover (4), when the locking cover (4) is screwed on the thread section (7), the lug (17) is driven to abut against the circular table part (8), and the circular table part (8) slides in the cone groove (15).

2. The wind turbine fan bracket vibration preventing structure according to claim 1, wherein the fan bracket (11) is provided with a weight reduction groove (12) in the form of a through hole.

3. The wind driven generator fan bracket anti-vibration structure as claimed in claim 1, wherein the locking cover (4) is provided with a plurality of planes on the circumference.

4. The wind turbine fan bracket shock-proof structure as claimed in claim 1, wherein the boss portion (8) is made of spring steel.

5. The wind driven generator fan bracket anti-vibration structure as claimed in claim 1, wherein the outer walls of the two sides of the connecting block (2) in the width direction are respectively provided with a limiting block (3), and the limiting blocks (3) can not freely pass through the clearance groove (16).