CN207442574U - A kind of wind-driven generator end cover structure and the wind-driven generator containing it - Google Patents

Abstract

The utility model discloses a kind of wind-driven generator end cover structure and the wind-driven generators containing it, the end cover structure includes multi-clove type end cap and insulation sleeve, the multi-clove type end cap uses multiple splitted structures, multiple splitted structures connect into complete annular end cap, and the insulation sleeve is equipped at annular end cap inner peripheral surface.The relatively existing full circle end cover structure of the utility model, by end cover structure componentization, the weight and volume of single part is reduced, improves the reliability and convertibility of component, end cover structure is made to be more applicable for transport and the maintenance needs of wind, farm site operation, greatly reduces maintenance cost；The utility model simplifies common insulation mode between rotor and engine base by the way of independent insulation sleeve, improves the reliability and convertibility of insulating layer, greatly reduces maintenance cost.

Description

A kind of wind-driven generator end cover structure and the wind-driven generator containing it

Technical field

The utility model is related to technical field of wind power generation, more particularly to a kind of wind-driven generator end cover structure and contain it Wind-driven generator.

Background technology

Wind-driven generator at present, especially doubly-fed wind turbine, in the end cover designs of generator, mostly using monoblock type Disc end cap；On the insulating structure design to rotor and engine base, using the integral type end cap with radial ringed insulating layer, Insulated bearing pedestal or insulation bearing.

But wind power generating set operating condition is more severe compared with other motors, parts damages and replace situation when have hair It is raw.Limited, the matched hanging object bore dia of the telpher crane capacity of means of transport is used in cabin, with being limited to engine room cover The intensity limitation of plate, it is impossible to arbitrarily expand or cut.When generator's cover needs replacing, the existing end cap using completely circular structure Since diameter is more than hanging object bore dia, often can not quick-replaceable, can only employ after crane integrally removes engine room cover, could incite somebody to action End cap is sent into cabin, and replacement cost is higher.

In addition, generator is to the weak link that the insulation system of rotor and engine base is often motor, integral type insulation system In, once insulating layer damages, it is necessary to whole part is replaced, using the structure of insulated bearing pedestal insulation mode, insulated bearing pedestal is exhausted Edge layer is fragile；Directly using insulation bearing, cost is higher and insulating layer is relatively thin, easily fails.

It can be seen that above-mentioned existing wind-driven generator end cap is in structure and using upper, it is clear that there are still have it is inconvenient with it is scarce It falls into, and is urgently further improved.How a kind of replacement convenient, replacement cost low new wind-driven generator end cap is founded Structure, becoming current industry pole needs improved target.

Utility model content

First purpose of the utility model is to provide the wind-driven generator end cap knot that a kind of replacement is convenient, replacement cost is low Structure.

To achieve the above object, the utility model adopts the following technical solution：

A kind of wind-driven generator end cover structure, including multi-clove type end cap and insulation sleeve, the multi-clove type end cap is using multiple Splitted structure, multiple splitted structures connect into complete annular end cap, the insulation sleeve are equipped at annular end cap inner peripheral surface, The insulation sleeve is donut.

Further, boss is equipped at the annular end cap inner peripheral surface, the insulation sleeve outer circumference surface is in the width direction Center line is equipped with groove for symmetry axis, and the groove matches with the boss at annular end cap inner peripheral surface.

Further, the groove-bottom of the boss internal diameter at the annular end cap inner peripheral surface and the insulation sleeve outer circumference surface The internal diameter in portion is interference fit in tolerance fit.

Further, the groove and boss transposition.

Further, the multiple splitted structure is connected by screw bolts to form complete annular end cap by link block, institute It sentences both sides centered on end cap face and sets up separately and be equipped with link block in the connecting pin for stating each splitted structure.

Further, it is symmetrical there are two through hole on the link block, for through the bolt conjunction end cap.

Further, it is described be bolted in bolt, nut also combined with plain washer, elastic washer, it is solid for connecting Fixed end lid.

Further, the wind-driven generator is doubly-fed wind turbine.

Second of the utility model is designed to provide a kind of end cover structure and replaces wind-force hair convenient, that replacement cost is low Motor.

To achieve the above object, the utility model adopts the following technical solution：

A kind of wind-driven generator, including above-mentioned wind-driven generator end cover structure.

Further, the wind-driven generator is doubly-fed wind turbine.

Due to the adoption of the above technical scheme, the utility model at least has the following advantages：

(1) using after multi-clove type structure, per part, maximum appearance and size and weight greatly reduce end cap, can pass through Hanging object hole enters cabin, slings entire generator's cover without employing crane, it is convenient to replace, and replacement cost reduces.

(2) independent insulation sleeve is replaced convenient, and thickness can be processed as needed.

(3) existing insulated end cover and insulation bearing are compared, the convertibility of insulation sleeve is stronger.

Description of the drawings

Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model Section, below in conjunction with attached drawing, the utility model is described in further detail with specific embodiment.

Fig. 1 is the main structure diagram after end cover structure described in the utility model assembling；

Fig. 2 is the dimensional structure diagram after end cover structure described in the utility model assembling；

Fig. 3 is the overlooking the structure diagram after end cover structure described in the utility model assembling；

Fig. 4 is the B-B sectional views in Fig. 1；

Fig. 5 is the C portions enlarged drawing in Fig. 4；

Fig. 6 is the main structure diagram of splitted structure；

Fig. 7 is the dimensional structure diagram of splitted structure；

Fig. 8 is the overlooking the structure diagram of splitted structure；

Fig. 9 is the A-A sectional views in Fig. 6；

Figure 10 is the main structure diagram of insulation sleeve；

Figure 11 is the dimensional structure diagram of insulation sleeve；

Figure 12 is the D-D sectional views in Figure 10.

Specific embodiment

The utility model provides a kind of wind-driven generator end cover structure, as shown in figures 1-8, including multi-clove type end cap 1 and absolutely Edge set 3, the multi-clove type end cap 1 use multiple splitted structures, and each splitted structure is equipped with link block 2, is used by link block 2 A complete annular end cap is bolted into, insulation sleeve 3 is installed at end cap inner peripheral surface, the insulation sleeve 3 is exhausted for a use Donut made of edge material.

During Specific construction, following operating procedure is referred to：

Multi-clove type end cap 1 is preset with link block 2, is connected by screw bolts by link block 2 and connects into multiple splitted structures One complete annular end cap, and insulation sleeve 3 is installed at end cap inner peripheral surface, the insulation sleeve 3 uses insulating materials for one Manufactured donut.

In order to preferably install fixed insulation sleeve 3, as shown in Fig. 7, Fig. 9-Figure 12, wind-driven generator multi-clove type end cap knot Structure is equipped with boss 8 at annular end cap inner peripheral surface.Center line is symmetry axis equipped with recessed to the insulation sleeve periphery in the width direction Slot 9 matches with the boss 8 of the annular end cap inner peripheral surface.8 internal diameter of boss at annular end cap inner peripheral surface with it is described absolutely The internal diameter of 9 bottom of groove of edge set outer circumference surface is interference fit in tolerance fit.It is convenient that independent insulation sleeve 3 is replaced, Thickness can be processed as needed.The position of above-mentioned boss 8 and groove 9 is interchangeable, can also achieve the purpose that identical.

The utility model provides a kind of wind-driven generator end cover structure, as shown in Figure 1, shown in Figure 5, more in multi-clove type end cap 1 A splitted structure is connected by screw bolts to form complete annular end cap by link block 2, and the connecting pin of each splitted structure is sentenced Both sides, which are set up separately, centered on end cap face puts there are one link block 2.Link block 2 is symmetrical as symmetrical midpoint using end cap face.Link block 2 It is upper symmetrical there are two through hole, for through the bolt 4 conjunction end cap.On link block 2 its aperture of symmetrical through hole with The screw portion outer diameter of bolt 4 matches.The bolt 4 and plain washer 5, elastic washer 6 and nut 7 combine, solid for connecting Fixed end lid.

The utility model is directed to existing general wind-driven generator end cover structure, passes through multi-clove type end cap and independent insulation Set by original completely circular structure Cover members, reduces single part weight and maximum appearance and size, to adapt to wind power plant to more Change transport and the maintenance needs of electric motor end cap.

The utility model makes end cover structure more be applicable in wind turbine on-site maintenance demand, using independence by unique design The mode of insulation sleeve simplifies common insulation mode between rotor and engine base, improves the reliability and convertibility of insulating layer, Greatly reduce maintenance cost.

Specific implementation of the patent scheme is described above in association with attached drawing, but this patent be not limited to it is above-mentioned Specific embodiments and applications field, above-mentioned specific embodiment be only illustrate row, it is guiding, not to this is special Profit makees limitation in any form, those skilled in the art using the technology contents of the disclosure above make a little simple modification, etc. With variation or modification, all fall in the protection domain of this patent.

Claims (10)

1. a kind of wind-driven generator end cover structure, which is characterized in that including multi-clove type end cap and insulation sleeve, the multi-clove type end cap Using multiple splitted structures, multiple splitted structures are circumferentially in turn connected into complete annular end cap, annular end cap inner periphery The insulation sleeve is installed at face.

2. wind-driven generator end cover structure according to claim 1, which is characterized in that at the annular end cap inner peripheral surface Equipped with boss, center line is equipped with groove, the groove and annular end to the insulation sleeve outer circumference surface for symmetry axis in the width direction Boss at lid inner peripheral surface matches.

3. wind-driven generator end cover structure according to claim 2, which is characterized in that at the annular end cap inner peripheral surface Boss internal diameter and the insulation sleeve outer circumference surface bottom portion of groove internal diameter, be interference fit in tolerance fit.

4. wind-driven generator end cover structure according to claim 2, which is characterized in that the groove mutually replaces with boss It puts.

5. wind-driven generator end cover structure according to claim 1, which is characterized in that the multiple splitted structure passes through company It connects block to be connected by screw bolts to form complete annular end cap, the connecting pin of each splitted structure is sentenced two centered on end cap face Side, which is set up separately, is equipped with link block.

6. wind-driven generator end cover structure according to claim 5, which is characterized in that be symmetrically distributed on the link block Two through holes, for through the bolt conjunction end cap.

7. wind-driven generator end cover structure according to claim 5, which is characterized in that it is described be bolted in bolt, Nut is also combined with plain washer, elastic washer, for connecting fixed end cap.

8. according to claim 1-7 any one of them wind-driven generator end cover structures, which is characterized in that the wind-driven generator For doubly-fed wind turbine.

9. a kind of wind-driven generator, which is characterized in that including claim 1-7 any one of them wind-driven generator end cap knots Structure.

10. wind-driven generator according to claim 9, which is characterized in that the wind-driven generator is double-fed wind generating Machine.