CN210490611U

CN210490611U - Improved generation aerogenerator insulating end cover

Info

Publication number: CN210490611U
Application number: CN201921503490.1U
Authority: CN
Inventors: 昌宪治
Original assignee: Jurong City Wanshun Light Industry Machinery Co ltd
Current assignee: Jurong City Wanshun Light Industry Machinery Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-08
Anticipated expiration: 2029-09-10

Abstract

The utility model relates to a aerogenerator accessory technical field, concretely relates to improved generation aerogenerator insulation end cover, including axle sleeve, annular bulge, spacing portion, shaft hole, insulating spacer ring, fender ring, insulating fastener. The utility model has the advantages that: through setting up an insulating spacer ring, the electric current circulation of bearing and its upper end cover on the aerogenerator has been obstructed to at least a certain extent, makes aerogenerator have the insulating properties of preferred, reduces the potential safety hazard, reduces the dependence to insulating bearing, sets up insulating fastener, makes the difficult production of fender ring become flexible, further improves end cover insulating properties simultaneously.

Description

Improved generation aerogenerator insulating end cover

Technical Field

The utility model relates to a aerogenerator accessory technical field, concretely relates to improved generation aerogenerator insulating end cover.

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.

In the wind driven generator working process, a rotating shaft cuts a magnetic force field, shaft voltage can exist on the rotating shaft, shaft current is formed, the shaft current is accumulated to a certain degree and can be transmitted to an end cover of the wind driven generator through a bearing, the electric leakage between the end cover and a shell of the wind driven generator is caused, the use and the safety are influenced, the current solving mode mainly adopts an insulating bearing to prevent the current on the bearing from being transmitted to the end cover, but the purchasing period of the insulating bearing is longer and the price is higher, and the burden on a certain degree is brought to enterprises.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide an improved generation aerogenerator insulating end cover, it can realize having improved the insulating properties of aerogenerator's end cover to at least a certain extent.

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 an insulating end cover of improved generation aerogenerator, includes aerogenerator's end cover body, the end cover body includes axle sleeve and the annular bulge of suit on the axle sleeve, the annular bulge is kept away from on the terminal surface of axle sleeve coaxial be equipped with an annular spacing portion, the coaxial shaft hole that runs through spacing portion that is equipped with on the axle sleeve, the supporting insulating spacer ring that is equipped with is gone up to the annular bulge, insulating spacer ring contradicts annular bulge one side and contradicts and be connected with one and keep off the ring, it is connected with the annular bulge through insulating fastener to keep off the ring.

Furthermore, a tool withdrawal groove is formed at the joint of the annular protrusion and the shaft sleeve.

Furthermore, the insulating fastener includes a bolt, insulating spacer assembly includes one inlays the insulating cover of dress in keeping off the intra-annular and the coaxial spacing ring of locating on the insulating cover, corresponds be equipped with the counter bore that supplies spacing ring sliding fit block and the through-hole that supplies insulating cover to insert to close on the fender ring, the bolt passes annular bulge, insulating spacer ring and screw cartridge in insulating cover, and the correspondence the coaxial screw that matches with the bolt that is equipped with on the insulating spacer assembly, respectively be equipped with the through-hole that supplies the bolt to pass on annular bulge, the insulating spacer ring.

Furthermore, at least two limiting blocks are symmetrically arranged in the counter bore, and limiting grooves for the limiting blocks to be clamped in a sliding fit mode are formed in the circumferential surfaces of the corresponding limiting rings.

Furthermore, a plurality of notches are arranged on the circumferential surface of the baffle ring.

The utility model has the advantages that: through setting up an insulating spacer ring, the electric current circulation of bearing and its upper end cover on the aerogenerator has been obstructed to at least a certain extent, makes aerogenerator have the insulating properties of preferred, reduces the potential safety hazard, reduces the dependence to insulating bearing, sets up insulating fastener, makes the difficult production of fender ring become flexible, further improves end cover insulating properties simultaneously.

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 a schematic bottom view of the three-dimensional structure of FIG. 1;

FIG. 3 is an exploded view of the perspective structure of FIG. 1;

the reference numerals are explained below:

1-shaft sleeve, 2-annular bulge, 3-limiting part, 4-shaft hole, 5-insulating spacer ring, 6-baffle ring, 7-bolt, 8-insulating sleeve, 9-limiting ring, 10-counter bore, 11-limiting block, 12-limiting groove, 13-notch and 14-screw hole.

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.

An improved insulating end cover of a wind driven generator shown in fig. 1-3 comprises an end cover body of the wind driven generator, wherein the end cover body comprises a shaft sleeve 1 and an annular bulge 2 sleeved on the shaft sleeve 1, an annular limiting part 3 is coaxially arranged on one end surface of the annular bulge 2 away from the shaft sleeve 1, a shaft hole 4 penetrating through the limiting part 3 is coaxially arranged on the shaft sleeve 1, a rotating shaft on the wind driven generator penetrates into the shaft hole 4, meanwhile, a bearing outer ring on the rotating shaft abuts against the end surface of the limiting part 3, an insulating spacer ring 5 is slidably arranged on the annular bulge 2 in a matched manner, a tool withdrawal groove is arranged at the joint of the annular bulge 2 and the shaft sleeve 1, the tool withdrawal groove is arranged so that the joint of the annular bulge 2 and the shaft sleeve 1 cannot interfere corners of the insulating spacer ring 5, and one side of the insulating spacer ring 5, which faces away from the annular bulge 2, is in abutting connection, the baffle ring 6 is connected with the annular bulge 2 through an insulating fastener, the insulating fastener comprises a bolt 7 and an insulating spacer bush component, the insulating spacer bush component comprises an insulating bush 8 embedded in the baffle ring 6 and a limiting ring 9 coaxially arranged on the insulating bush 8, a counter bore 10 for the sliding fit and clamping of the limiting ring 9 and a through hole for the insertion of the insulating bush 8 are correspondingly arranged on the baffle ring 6, the bolt 7 passes through the annular bulge 2 and the insulating spacer ring 5 and is inserted in the insulating bush 8 in a threaded manner, a screw hole 14 matched with the bolt 7 is coaxially arranged on the corresponding insulating spacer bush component, through holes for the passing of the bolt 7 are respectively arranged on the annular bulge 2 and the insulating spacer ring 5, at least two limiting blocks 11 are symmetrically arranged in the counter bore 10, a limiting groove 12 for the sliding fit and clamping of the limiting blocks 11 is correspondingly arranged on the peripheral surface of the limiting ring 9, and the limiting blocks 11 and the limiting groove 12 are clamped, when the bolt 7 is screwed with the insulating sleeve 8, the insulating sleeve 8 cannot rotate, and the plurality of notches 13 are formed in the circumferential surface of the baffle ring 6, so that a worker can take the baffle ring 6 conveniently.

The utility model discloses when using: the pivot is worn into the axle hole of end cover body on the outside aerogenerator (pivot and axle hole clearance are great), the bearing inner race of suit supports spacing portion and bearing inner race not with spacing portion contact in the pivot (this is the mounting technique among the prior art), because insulating spacer ring setting on the end cover body, make the axle current on the bearing carried out the separation by the insulating ring, make the axle current can't transmit to the retaining ring on via the end cover body, then the retaining ring is installed on the aerogenerator shell (can form such as welding or riveting), make and carry out the separation by the retaining ring between end cover body and the aerogenerator shell, when producing the axle current in the pivot like this, the axle current can not transmit to the aerogenerator shell when passing through the bearing, thereby the potential safety hazard has been reduced to a certain extent at least, simultaneously can alleviate insulating bearing's pressure purchase to a certain extent.

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 an insulating end cover of improved generation aerogenerator, includes aerogenerator's end cover body, the end cover body includes annular bulge (2) on axle sleeve (1) and suit, the annular bulge (2) are kept away from on the terminal surface of axle sleeve (1) coaxial be equipped with an annular spacing portion (3), coaxial be equipped with shaft hole (4) that run through spacing portion (3) on axle sleeve (1), its characterized in that, supporting insulating spacer ring (5) of being equipped with on annular bulge (2), insulating spacer ring (5) are contradicted to annular bulge (2) one side and are connected with one and are kept off ring (6), keep off ring (6) and be connected with annular bulge (2) through insulating fastener.

2. An improved wind driven generator insulation end cover according to claim 1, characterized in that a relief groove is arranged at the joint of the annular protrusion (2) and the shaft sleeve (1).

3. The improved insulating end cover of the wind driven generator according to claim 1, wherein the insulating fastener comprises a bolt (7) and an insulating spacer assembly, the insulating spacer assembly comprises an insulating sleeve (8) embedded in the baffle ring (6) and a limiting ring (9) coaxially arranged on the insulating sleeve (8), a counter bore (10) for the sliding fit and clamping of the limiting ring (9) and a through hole for the insertion of the insulating sleeve (8) are correspondingly formed in the baffle ring (6), the bolt (7) penetrates through the annular protrusion (2) and the insulating spacer ring (5) and is inserted in the insulating sleeve (8) in a threaded manner, a screw hole (14) matched with the bolt (7) is coaxially arranged on the corresponding insulating spacer assembly, and through holes for the bolt (7) to penetrate through are respectively formed in the annular protrusion (2) and the insulating spacer ring (5).

4. The improved insulating end cover of the wind driven generator according to claim 3, wherein at least two limiting blocks (11) are symmetrically arranged in the counter bore (10), and limiting grooves (12) for the limiting blocks (11) to be slidably engaged are formed in the peripheral surface of the corresponding limiting ring (9).

5. An improved insulating end cover for a wind driven generator according to any one of claims 1-4, characterized in that the retaining ring (6) is provided with a plurality of notches (13) on its circumference.