CN206738235U - Impeller and there is its drive device - Google Patents

Abstract

The utility model discloses a kind of impeller and there is its drive device, the impeller includes：Front shroud, there is the first blow vent on front shroud；Back shroud, back shroud are spaced apart with front shroud, and the periphery of back shroud and the periphery of front shroud limit the second blow vent, and the center of back shroud has centre bore；Multiple blades, circumferential uniform intervals of multiple blades along back shroud are set, and multiple blades limit the runner of the first blow vent of connection and the second blow vent between back shroud and front shroud, and between adjacent two blades；Fastener, fastener are arranged on back shroud, and the center of fastener has axle position hole, axle position hole and centre bore face, and the aperture in axle position hole is less than the aperture of centre bore.According to impeller of the present utility model, faying face is bigger when being installed with back shroud so that the tangential force increase that whole impeller is born, can be effectively prevented from impeller skidding and stress deformation, ensure the service behaviour of impeller.

Description

Impeller and there is its drive device

Technical field

Air stream drives equipment technical field is the utility model is related to, more particularly, to a kind of impeller and there is its drive Dynamic device.

Background technology

The general work rotating ratio of usual blower of cleaner is higher, and the gap between dynamic and static part is smaller, worked Requirement in journey to impeller is higher, and the situation that the impeller in correlation technique has micro-strain occurs, and may be led when serious Cause to collide between impeller and fan housing and even fail, because impeller is typically directly installed by pilot hole, if lid The thickness of plate too it is thin can cause installation faying face it is too small, and then the tangential force for bearing whole impeller diminishes, it is possible that Skidding, it may result in impeller stress when being pressed impeller from outside for another example and deform, influence working life and normally make With.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model carries Go out a kind of impeller, the installation of the impeller is reliable, is not susceptible to deform, stable work in work.

The utility model also proposes a kind of drive device with above-mentioned impeller.

Included according to the impeller of the utility model first aspect：Front shroud, there is the first blow vent on the front shroud；Afterwards Cover plate, the back shroud are spaced apart with the front shroud, and the periphery of the periphery of the back shroud and the front shroud limits Second blow vent, the center of the back shroud have centre bore；Multiple blades, week of multiple blades along the back shroud Set to uniform intervals, multiple blades are between the back shroud and the front shroud, and adjacent two leaves The runner for connecting first blow vent and second blow vent is limited between piece；Fastener, the fastener are arranged on On the back shroud, the center of the fastener has axle position hole, the axle position hole and the centre bore face, and the axle position The aperture in hole is less than the aperture of the centre bore.

According to impeller of the present utility model, by being provided with fastener on back shroud, faying face when being installed with back shroud It is bigger so that the tangential force increase that whole impeller is born, impeller skidding and stress deformation can be effectively prevented from, ensure impeller Service behaviour.

According to one embodiment of the present utility model, the fastener has locating ring, during the locating ring insertion is described In heart hole, for being connected with back shroud.

Alternatively, the centre bore is stretched out on the end edge of the locating ring.

Alternatively, the fastener also includes body, and the body is located on the medial surface of the back shroud, described Locating ring is connected with the body, and the axle position hole penetrates the body and the locating ring.

Further, the body of the fastener is formed as the truncated cone-shaped or cylinder of symmetrical configuration.

According to another embodiment of the present utility model, the fastener opens arrangement with the spacing with blades, facilitates frock Impeller is pressed into, avoids that blade is caused to damage.

According to another embodiment of the present utility model, the maximum outside diameter of the fastener is the 1/ of the back shroud external diameter 4-1/2。

Alternatively, the height of the fastener is less than the minimum constructive height of blade.

According to further embodiment of the present utility model, between the fastener and the back shroud using it is Nian Jie, rivet, Interference fit connection with least one of snap connection mode and connect, connected mode is various, reliable.

According to the utility model optional embodiment, the central axis of the central axis of the fastener and the back shroud Overlap, be easily installed cooperation.

According to the utility model further embodiment, the axle position hole is smooth circular hole；Or the hole of the centre bore Wall is provided with the drop glue groove for extending to the center nose end edge, is easy to bonding between fastener and back shroud to be connected.

According to the utility model optional embodiment, the number of the blade is 5-15, ensures the service behaviour of impeller.

According to the drive device of the utility model second aspect, including：Impeller, the impeller are described in above-described embodiment Impeller；Actuator, the actuator have a drive shaft, and the drive shaft is connected to drive with being relatively fixed with the fastener The dynamic impeller rotation.

According to drive device of the present utility model, by being provided with fastener in the impeller of drive device, assembling is more Reliably, the service behaviour and service life of impeller are ensured.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 is the front view according to the impeller of the utility model embodiment；

Fig. 2 is the stereogram according to the impeller of the utility model embodiment；

Fig. 3 is according to the sectional view of the impeller of the utility model embodiment；

Fig. 4 is according to the front view of the fastener of the impeller of the utility model embodiment；

Fig. 5 is according to the stereogram of the fastener of the impeller of the utility model embodiment；

Fig. 6 is according to the stereogram of the fastener of another visual angle impeller of the utility model embodiment.

Reference：

100：Impeller；

10：Front shroud；10a：First blow vent；

20：Back shroud；20a：Centre bore；20b：Second blow vent；21：Fixture；

30：Blade；

40：Fastener；40a：Axle position hole；40b：Mounting hole；41：Locating ring；42：Body.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.

In description of the present utility model, it is to be understood that term " " center ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", " top ", " bottom " " interior ", " outer ", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this practicality newly Type and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific orientation Construction and operation, therefore it is not intended that to limitation of the present utility model.In addition, define " first ", the feature of " second " can To express or implicitly include one or more this feature.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Impeller 100 below with reference to Fig. 1-Fig. 6 descriptions according to the utility model first aspect embodiment.

As shown in figure 1, front shroud 10, back shroud 20, the and of blade 30 are included according to the impeller 100 of the utility model embodiment Fastener 40.

Specifically, there is the first blow vent 10a on front shroud 10, back shroud 20 and front shroud 10 are arranged spaced apart, after The periphery leading edge of the neighboring of cover plate 20 and front shroud 10 cooperates limits the second blow vent 20b jointly, in back shroud 20 middle position is provided with centre bore 20a, and circumference of multiple blades 30 along back shroud 20 is evenly spaced apart to arrange, and multiple leaves Piece 30 is arranged between front shroud 10 and back shroud 20, defines the runner of air-flow between adjacent two blades 30, runner with First blow vent 10a and the second blow vent 20b are connected, the runner that air-flow is entered between blade 30 by the first blow vent 10a, Along flow passage, then flowed out by the second blow vent 20b.

Fastener 40 is also equipped with back shroud 20, there is axle position hole 40a, fastener in the middle position of fastener 40 Axle position hole 40a on 40 and the centre bore 20a faces on back shroud 20, and axle position hole 40a aperture is less than centre bore 20a's Aperture, so, coordinated by the fastener 40 being equipped with back shroud 20 with drive shaft, avoid back shroud 20 and drive shaft The problems such as skidding caused by directly being installed and stress deformation.

Compared with the impeller 100 in correlation technique, filled according to the impeller 100 of the utility model embodiment on back shroud 20 Fastener 40 is matched somebody with somebody, by the connection of fastener 40 and drive shaft, and then has realized being indirectly connected for back shroud 20 and drive shaft, make Faying face between impeller 100 and drive shaft becomes big, avoid the occurrence of skidding, in addition, prevent from outer press mounting impeller 100 when Generation stress deformation.

According to the impeller 100 of the utility model embodiment, by installing fastener 40 on back shroud 20, back shroud 20 with Drive shaft is indirectly connected so that the faying face of installation is larger, and the tangential force that impeller 100 is born becomes big, reduces appearance and skids now The possibility of elephant, when mounted impeller 100 be not susceptible to deform, extend working life, ensure that performance.

As shown in Figures 2 and 3, according to one embodiment of the present utility model, locating ring 41 is provided with fastener 40, tightly When firmware 40 is arranged on back shroud 20, locating ring 41 is embedded in the centre bore 20a of back shroud 20, so, passes through fastener 40 On locating ring 41, realize the connection of fastener 40 and back shroud 20.

Further, after fastener 40 assembles with back shroud 20, centre bore 20a is stretched out on the end edge edge of locating ring 41 Outside, i.e. the end of locating ring 41 protrudes from the surface of the rear side of back shroud 20, and fastener 40 is not easy to come off from back shroud 20, ensures The connection of fastener 40 and back shroud 20 is reliable.

Reference picture 4, alternatively, fastener 40 also include body 42, and body 42 is connected with locating ring 41, locating ring 41 positioned at the rear side of body 42 center, and the radial dimension of body 42 is more than the radial dimension of locating ring 41, body after installation Portion 42 is located on the inner surface of back shroud 20, i.e., between front shroud 10 and back shroud 20, axle position hole 40a passes through along fore-and-aft direction Logical body 42 and locating ring 41, so, body 42 is assemblied in the inner side of back shroud 20, increases the cooperation with back shroud 20 Area, axle position hole 40a are suitable to drive shaft and passed through to drive impeller 100 to rotate.

In addition, being additionally provided with multiple mounting hole 40b on body 42, circumferences of multiple mounting hole 40b along body 42 is Even to be intervally arranged, mounting hole 40b is fixedly connected by being engaged with corresponding fixture 21, by body 42 with back shroud 20, Further enhancing fastener 40 and connect Earthing Reliability with back shroud 20, fixture 21 protrudes from surface after back shroud 20 in addition, Positioned available for impeller 100.

Further, the body 42 of fastener 40 is formed as the shape of symmetrical configuration, such as truncated cone-shaped or cylinder, The weight of so each several part of the body 42 of fastener 40 is uniform, and for impeller 100 in rotary course, various pieces keep dynamic flat Weighing apparatus, avoid causing impeller 100 can not normal work because weight is uneven.

According to another embodiment of the present utility model, fastener 40 and blade 30 are arranged spaced apart, it is to be understood that Fastener 40 has predetermined distance with blade 30 after mounting, when being pressed into impeller 100 so as to frock, will not touch blade 30, avoid that blade 30 is caused to damage.

According to another embodiment of the present utility model, the maximum outside diameter of fastener 40 is the 1/4-1/ of the external diameter of back shroud 20 2, the maximum outside diameter of fastener 40 and the external diameter ratio of back shroud 20 are between 0.25 to 0.5, can be 0.25 specifically, 0.30th, 0.35,0.40,0.45,0.50, it is specific to be chosen according to being actually needed, by by the maximum of fastener 40 The ratio of external diameter and the external diameter of back shroud 20 is limited within above range, on the one hand ensures fastener 40 and back shroud 20 after assembling Faying face it is larger, predetermined distance is reserved between another aspect fastener 40 and blade 30, is avoided in frock to blade 30 Cause to damage.

As shown in figure 3, according to the optional example of the utility model, the height of fastener 40 is less than the minimum height of blade 30 Degree, such fastener 40 do not produce interference effect to the air-flow by the first blow vent 10a, and the height of fastener 40 can ensure Air-flow can be smoothly entered in interlobate passage.

According to the utility model further embodiment, can be used between fastener 40 and back shroud 20 in following various ways At least one be attached, such as bonded using glue, riveted using screw, fastener 40 and back shroud can also be used Interference fit connection is carried out between 20, can also be connected by snap, specifically, can use it is above-mentioned in One kind is attached, and can also be connected jointly using various ways so that the connection of fastener 40 and back shroud 20 is reliable.

According to the utility model optional embodiment, the central axis of fastener 40 is mutually overlapping with the central axis of back shroud 20 Close, ensure that fastener 40 can be just relative with axle position hole 40a and centre bore 20a after the assembling of back shroud 20, such drive shaft is worn After crossing fastener 40 and back shroud 20, dynamic balancing is realized when impeller 100 rotates.

In some embodiments of the present utility model, axle position hole 40a can be formed as smooth circular hole, such axle position It is interference fitted between hole 40a and drive shaft, respective outer side edges are simple, and connection is reliable.

In some embodiments of the present utility model, axle position hole 40a hole wall, which is provided with, extends to centre bore 20a ends The drop glue groove on edge, so, after drive shaft passes through axle position hole 40a, glue can be instilled into drop glue groove, by drive shaft and axle Gluing connection is carried out between the hole 40a of position, connection is reliable, simple to operate.

According to one embodiment of the present utility model, back shroud 20 clear width be disposed with 5 to 15 blades 30, Such as there are 5,6,7,8,9,10,11,12,13,14,15 blades in the inner side of back shroud 20 30, flexibly set according to being actually needed, these blades 30 are equably arranged in the inner side of back shroud 20, good appearance, protect Demonstrate,prove the service behaviour of guide vane wheel 100.

Impeller 100 and actuator are included according to the drive device of the utility model second aspect embodiment, impeller 100 is upper The impeller 100 described in embodiment is stated, there is a drive shaft on actuator, drive shaft is fixedly connected for driving with fastener 40 Movable vane wheel 100 is rotated.

Due to there is above-mentioned technique effect according to the impeller 100 of the utility model embodiment, thus it is real according to the utility model The drive device for applying example also has above-mentioned technique effect, that is, avoids the occurrence of skidding, is not susceptible to deform, stable work in work, make Use long lifespan.

According to the impeller 100 of the utility model embodiment and other compositions with its drive device etc. and operation pair All it is known for those of ordinary skill in the art, is not detailed herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe Structure, material or feature are contained at least one embodiment or example of the present utility model.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can combine in an appropriate manner in any one or more embodiments or example.

While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that： These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (13)

1. A kind of 1. impeller, it is characterised in that including：

   Front shroud, there is the first blow vent on the front shroud；

   Back shroud, the back shroud are spaced apart with the front shroud, and the periphery of the periphery of the back shroud and the front shroud The second blow vent is limited, the center of the back shroud has centre bore；

   Multiple blades, circumferential uniform intervals of multiple blades along the back shroud are set, and multiple blades are located at institute State between back shroud and the front shroud, and connection first blow vent and institute are limited between adjacent two blades State the runner of the second blow vent；

   Fastener, the fastener are arranged on the back shroud, and the center of the fastener has axle position hole, the axle position hole With the centre bore face, and the aperture in the axle position hole be less than the centre bore aperture.
2. 2. impeller according to claim 1, it is characterised in that the fastener has locating ring, the locating ring insertion In the centre bore.
3. 3. impeller according to claim 2, it is characterised in that the centre bore is stretched out on the end edge of the locating ring.
4. 4. impeller according to claim 2, it is characterised in that the fastener also includes body, and the body is set In the rear on the medial surface of cover plate, the locating ring is connected with the body, the axle position hole penetrate the body and The locating ring.
5. 5. impeller according to claim 4, it is characterised in that the body of the fastener is formed as the circle of symmetrical configuration Platform shape or cylinder.
6. 6. impeller according to claim 1, it is characterised in that the fastener opens arrangement with the spacing with blades.
7. 7. impeller according to claim 1, it is characterised in that the maximum outside diameter of the fastener is the back shroud external diameter 1/4-1/2.
8. 8. impeller according to claim 2, it is characterised in that the height of the fastener is less than the minimum constructive height of blade.
9. 9. impeller according to claim 1, it is characterised in that between the fastener and the back shroud using it is Nian Jie, Riveting, interference fit connection and at least one of snap connection mode and connect.
10. 10. impeller according to claim 1, it is characterised in that the central axis of the fastener and the back shroud Central axis overlaps.
11. 11. impeller according to claim 1, it is characterised in that

    The axle position hole is smooth circular hole；Or

    The hole wall of the centre bore is provided with the drop glue groove for extending to the center nose end edge.
12. 12. impeller according to claim 1, it is characterised in that the number of the blade is 5-15.
13. A kind of 13. drive device, it is characterised in that including：

    Impeller, the impeller are the impeller according to any one of claim 1-12；

    Actuator, the actuator have a drive shaft, and the drive shaft is connected to drive with being relatively fixed with the fastener The impeller rotation.