CN207145333U

CN207145333U - shape variable diffuser

Info

Publication number: CN207145333U
Application number: CN201720451176.8U
Authority: CN
Inventors: 李殷钟
Original assignee: Han Hua Compressor Plant
Current assignee: Han Hua Compressor Plant
Priority date: 2017-01-02
Filing date: 2017-04-26
Publication date: 2018-03-27
Anticipated expiration: 2027-04-26
Also published as: KR20180079641A

Abstract

A kind of shape variable diffuser is the utility model is related to, can be included：Housing；First bar, the housing is fixed on, and is axially extended from the housing；Pivot chain bar, it is rotatably engaged in first bar, and receives by the driving force that drive division provides and rotated centered on first bar；Second bar, it is incorporated into the output end of the pivot chain bar and moves, and including：Blade ring, rotated by the movement of second bar；And multiple blades, arranged direction changes with the rotation of the blade ring, wherein, the rotary shaft of first bar, second bar and the blade ring is parallel to each other, and it is inconsistent, so as to changed by the rotation of pivot chain bar the row of multiple blades to.

Description

Shape variable diffuser

Technical field

A kind of diffuser is the utility model is related to, in particular to a kind of shape variable diffuser.

Background technology

Centrifugal compressor is a kind of convection body imparting centrifugal force using the impeller being rotated, so that fluid pressure The device of contracting.

Centrifugal compressor can generally include：Drive division, for generating driving force；Gear unit, it is connected with drive division；Tooth Box is taken turns, is internally provided with gear unit；Rotary shaft, it is inserted into gearcase and is connected with gear unit；Impeller (impeller), Rotated with rotating axis connection, so as to which rotation function is passed into fluid, so that the pressure of fluid rises；Scroll casing (scroll), for supporting impeller；Shield (Shuraud), with scroll casing with reference to and form the space for making flow of fluid.

By impeller, compressed air is drawn by the periphery along impeller and the diffuser (diffuser) arranged It is directed at scroll casing.Diffuser includes multiple blades (vane), so as to be discharged by the space between blade and blade to scroll casing Compressed air.

The blade of diffuser circumferentially and is in a predefined manner arranged with predetermined angle, and by the air discharged from impeller with Predetermined mode is discharged.However, generating a kind of necessity for needing to adjust the flow being discharged, and deposit in the prior art In a kind of technology for the angle for adjusting blade to adjust flow.

In Fig. 1 into Fig. 3, a kind of diffuser 100 for the angle that can adjust blade 104 is shown.In order to adjust blade 104 angle, blade 104 is connected to ring 103, and ring 103 is connected to the rotation being connected with actuator (actuator) 101 The end of pivoted arm 102 and make its rotation.With the rotation of ring 103, the aperture of blade 104 becomes different, so as to pass through leaf The flow in the space between piece 104 can change.But there is it is following the problem of：Due to connecting in the end of turning arm 102 Ring 103 is connect, so the aperture regulation of precision is difficult to, and because turning arm 102 is outside in order to be connected with actuator 101 Portion protrudes, so being difficult to reduce overall size.

[prior art literature]

[patent document]

US publication the 2010-0172745th (2010.07.08. is disclosed)

Utility model content

Problem to be solved in the utility model is to provide a kind of shape variable diffuser.

Problem of the present utility model is not limited to above-mentioned problem, for others not mentioned problem, this area Technical staff can be clearly understood that according to following records.

It can include for solving the shape variable diffuser according to an embodiment of the present utility model of above-mentioned housing：Shell Body；First bar, the housing is fixed on, and is axially extended from the housing；Pivot chain bar, is rotatably engaged in described First bar, and receive by the driving force that drive division provides and rotated centered on first bar；Second bar, it is incorporated into described The output end of pivot chain bar and move, and including：Blade ring, rotated by the movement of second bar；And multiple leaves Piece, arranged direction changes with the rotation of the blade ring, and first bar, second bar and the blade ring Rotary shaft can be with parallel to each other and inconsistent.

The slot that the output end of the pivot chain bar can extend equipped with the length direction along the pivot chain bar, and And second bar is inserted in the slot and is slidably joined in the slot.

One end on the length direction of the slot can be opened.

The central part of the pivot chain bar can be rotatably engaged in first bar, and the pivot chain bar is defeated Enter end and be connected to the drive division, and the output end and the input be respectively arranged on the basis of first bar in The reciprocal position of the pivot chain bar.

The pivot chain bar and second bar can be with so that the length directions and second bar of the pivot chain bar Length direction mode perpendicular to one another combines.

As the pivot chain bar rotates, second bar can move along the periphery of the blade ring.

The drive division can include：Actuator；And actuating arm, connect with the input provisioned in the pivot chain bar Connect, and the driving force received from the actuator is passed into the pivot chain bar.

The actuator can be the revolving actuator for rotating the actuating arm.

The rotary shaft of the actuating arm can be perpendicular to the rotary shaft of first bar.

The input can be formed as spherical, and the actuating arm is formed in the one end combined with the pivot chain bar There is the hook that can be inserted the input and slide.

The housing can internally house first bar, the second bar and blade ring.

It can also be changed according to the shape variable diffuser of embodiment including arranged direction with the rotation of the blade ring The multiple middle chain bars become, and the arranged direction of the multiple blade is with the change of the arranged direction of the multiple middle chain bar More change.

It can also be included according to the shape variable diffuser of embodiment：Multiple 3rd bars, by the blade ring and described more Individual middle chain bar connection, and moved by the rotation of the blade ring along the periphery of the blade ring；Multiple 4th bars, The multiple blade is connected with the multiple middle chain bar, and extended along the rotary shaft of the multiple middle chain bar, And turned according to the change of the arranged direction of the multiple middle chain bar centered on the rotary shaft of the middle chain bar It is dynamic.

As the multiple blade is entered by the multiple 4th bar centered on the rotary shaft of the multiple intermediate bar Row rotates, and the arranged direction of the multiple blade can change.

The rotary shaft of the multiple middle chain bar and the rotary shaft of the blade ring can with parallel, and with the blade ring Rotary shaft it is inconsistent.

Other details of the present utility model are included in detailed description and accompanying drawing.

According to embodiment of the present utility model, at least with following effects.

The arranged direction of blade can critically be adjusted.

By reducing pivot chain bar (pivot link) rotational steps, so as to reduce the change of diffuser outer shape More amplitude, and overall size can be reduced.

The content of above example is not limited to according to effect of the present utility model, more various effect is included in this theory In bright book.Others not mentioned effect can be clearly understood that according to the record of claims by those skilled in the art.

Brief description of the drawings

Fig. 1 is the stereogram for the global shape for showing existing diffuser.

Fig. 2 is the plan of existing diffuser viewed from above.

Fig. 3 is the stereogram that the blade for showing to use in existing diffuser adjusts structure.

Fig. 4 is the stereogram of the outward appearance for the compressor for being shown with the diffuser according to an embodiment of the present utility model.

Fig. 5 is the front elevation of the compressor using the diffuser according to an embodiment of the present utility model from front.

Fig. 6 is the stereogram according to the diffuser of an embodiment of the present utility model.

Fig. 7 is the profile for the compressor for using the diffuser according to an embodiment of the present utility model.

Fig. 8 is the situation for showing to be connected to pivot chain bar according to the actuator of the diffuser of an embodiment of the present utility model Stereogram.

Fig. 9 is to show to make its rotation to pivot chain bar transmission driving force according to the actuator of diffuser of the present utility model Situation stereogram.

Figure 10 is the plan according to the diffuser of an embodiment of the present utility model.

Figure 11 is the flat of the situation that shows to make to be worked according to the pivot chain bar of the diffuser of an embodiment of the present utility model Face figure.

Figure 12 is the plan for showing the situation according to the blade of the diffuser of an embodiment of the present utility model opening.

Figure 13 is the plan for showing the situation according to the closing of the blade of the diffuser of an embodiment of the present utility model.

Symbol description

1：Compressor 2：Diffuser

4：Scroll casing 10：Actuator

11：Actuating arm 12：Power transfering part

13：Hook 20：Housing

21：First bar 30：Pivot chain bar

31：Input 32：Output end

40：Blade ring 41：Second bar

42：Middle chain bar 43：3rd bar

50：Blade 51：4th bar

60：Impeller 61：Introduce stream

100：Existing compressor 101：Existing linear actuators

102：Existing turning arm 103：Existing control ring

104：Existing blade A1, A2：The angle that blade is formed

Embodiment

If the embodiment that reference explains with reference to the accompanying drawings, advantages and features of the present utility model and realization These method can become definitely., can be by mutually not phase but the utility model is not limited to embodiments disclosed below With variform realize that the purpose for being only to provide the present embodiment is intactly to disclose the utility model, and make this practicality The technical staff for having ABC in technical field belonging to new can intactly know the scope of the utility model, and The utility model is only defined by the scope described in claims.In entire disclosure, identical reference numeral is censured Identical inscape.

If defined without others, all terms (including term of technology and science) used in this specification It can be used as the meaning that the people with ABC can jointly understand in the technical field belonging to the utility model. In addition, for the term defined in usually used dictionary, will not in the case of no particularly clearly definition Explained singularly or exceedingly.

The term used in this manual is used to illustrate embodiment, and is not intended to limit the utility model.In this theory In bright book, being expressed in of odd number type do not have in sentence it is specifically mentioned in the case of can also include the statement of complex number type.To illustrating The term such as " including (comprises) " for being used in book and/or " (comprising) that includes ... " is except the structure being previously mentioned Into beyond key element, however not excluded that the presence of other more than one inscapes or the situation set up.

In addition, with reference to as the preferably profile of exemplary plot and/or schematic diagram of the present utility model and to this specification The embodiment of middle description illustrates.Therefore, the form of exemplary plot may change according to manufacturing technology and/or allowable error etc. Become.In addition, in each accompanying drawing shown by the utility model, it is contemplated that the convenience of explanation, each inscape may be more It is how many to zoom in or out and represent less.Throughout the specification, identical reference numeral censures identical inscape, and "and/or" includes each or more than one all combinations in the project that is previously mentioned.

Spatially the term of relativity on the basis of the direction being illustrated in accompanying drawing in use, being understood to include The term in the mutually different direction of each inscape.Inscape can also configure along other direction, accordingly, space The term of upper relativity can be explained according to configuration direction.

Hereinafter, the composition of preferred embodiment of the present utility model is described in detail referring to the drawings.

Fig. 4 is the solid of the outward appearance for the compressor 1 for being shown with the diffuser 2 according to an embodiment of the present utility model Figure.Fig. 5 is the front elevation of the compressor 1 using the diffuser 2 according to an embodiment of the present utility model from front.

Reference picture 4 and Fig. 5, include scroll casing using the compressor 1 of the diffuser 2 according to an embodiment of the present utility model (scroll) 4, impeller 60, gear unit etc. and diffuser 2.

Centrifugal compressor 1 receives fluid by the opening in front.The fluid flowed into by means of in the inside of compressor 1 with one The impeller 60 that is rotated centered on axle and receive rotation function, so as to become the fluid of high pressure.Formed in a manner of surrounding impeller 60 Diffuser 2 there is following function：The fluid for the high pressure discharged from impeller 60 is received, and is guided pre- to enable flow through Fixed stream and moved to scroll casing 4.Therefore, the fluid for being flowed into the opening in front becomes to pass through volute after the fluid of high pressure Pipe 4 is discharged, and is achieved in the work of compressor 1.

Fig. 6 is the stereogram according to the diffuser 2 of an embodiment of the present utility model.

If reference picture 6, can confirm that, what is used in centrifugal compressor 1 implements according to of the present utility model one The diffuser 2 of example includes housing 20, pivot chain bar 30, blade ring (vane ring) 40, middle chain bar (link) 42 and is used for Connect the inscape of other each inscapes.The blade 50 of diffuser 2 is contained in the inside of housing 20 in figure 6, to this It will be described in the explanation for Figure 12 and Figure 13.

Housing 20 is the composition that the inscape of the diffuser 2 according to an embodiment of the present utility model is contained in inside Key element.The bar 41 of the first bar (rod) 21, second, blade ring 40 and middle chain bar 42 are contained in the inside of housing 20, but also The 3rd bar 43 of connection blade ring 40 and middle chain bar 42 can be contained and be connected the of centre chain bar 42 and multiple blades 50 Four bars 51.

Pivot chain bar 30 is the inscape rotated to change the arranged direction of multiple blades 50 of the present utility model. Therefore, in order to be rotated, rotationally it is attached to the first bar 21 for being fixed on housing 20.Pivot chain bar 30 is with the first bar 21 Rotated centered on rotary shaft.

First bar 21 is extended along a direction, and so as to which one end is connected to the basal surface of housing 20, the other end is incorporated into pivot The shaft (shaft) of axle chain bar 30.The direction that first bar 21 is extended can be the direction vertical with blade ring 40, but simultaneously It is not limited to this.

Pivot chain bar 30 extends along a direction, it is preferable that extends along the direction vertical with the first bar 21.The pivot of extension One end of axle chain bar 30 is input 31, and the other end is output end 32.Input 31 is configured to spherical state and is connected to drive division Actuating arm 11, output end 32 combined with the second bar 41.In addition, the shape between the input 31 of pivot chain bar 30 and output end 32 Into there is the central part of pivot chain bar 30, so that the first bar 21 combines.Therefore, the rotary shaft of pivot chain bar 30 is arranged in pivot chain bar 30 Central area, rather than both ends, therefore the input 31 of pivot chain bar 30 and output end 32 will be when pivot chain bar 30 rotate It is mobile.

The slot that output end 32 alongst extends and is opened with one end on length direction.Inserted in slot There is the second bar 41, and can be slided in slot, so as to enable the second bar 41 when pivot chain bar 30 rotates in slot Slide and move.In an embodiment of the present utility model, the one side for being shown as slot is opened, but the form of slot is simultaneously It is not limited to this.

Driving force for rotating pivot chain bar 30 is passed to pivot chain by drive division not shown in FIG. 6 The input 31 of bar 30.The rotation of the pivot chain bar 30 of the actuating arm included by drive division and drive division will for Described in Figure 12 and Figure 13 explanation.

Second bar 41 is the inscape for being connected and combining with blade ring 40 and pivot chain bar 30 respectively at both ends.As above institute State, one end of the second bar 41 is slidably insert into the slot for the output end 32 for being formed at pivot chain bar 30, and other end knot Together in blade ring 40.Therefore, for the second bar 41 in the case where being moved by pivot chain bar 30, blade ring 40 can be with second Bar 41 and move.

Space of second bar 41 in housing 20 be formed as along a direction extension bar form, it is preferable that along with The parallel direction of first bar 21, i.e. the direction extension vertical with pivot chain bar 30, and it is arranged in the position being separated by with the first bar 21 Put and be incorporated into a side region of blade ring 40.

Blade ring 40 be in order that multiple blades 50 rotate and existing annular inscape, its with surround make air to The mode for the introducing stream 61 that impeller 60 enters is formed.Therefore, introducing stream of the place formed with circle centered on blade ring 40 is formed The annular on road 61.Blade ring 40 is combined with the second bar 41, therefore blade ring 40 is connected by the second bar 41 with pivot chain bar 30 Connect.Therefore, as the second bar 41 moves by the rotation of pivot chain bar 30, blade ring 40 using centrally located rotary shaft as Center and rotate.Second bar 41 moves by the rotation of pivot chain bar 30, but due to blade ring 40 with reference to and can not take off From so being moved along the periphery of blade ring 40.

Middle chain bar 42 is the inscape to be connected with blade ring 40, the multiple 3rd bar by multiple 3rd bars 43 43 are incorporated into the opposing face of the one side being connected with the second bar 41 of blade ring 40.Therefore, middle chain bar 42 is configured to multiple, And blade ring 40 is combined with one end of the 3rd bar 43, the other end is combined with middle chain bar 42.

Space of 3rd bar 43 in housing 20 be formed as along a direction extension bar form, it is preferable that along with The vertical direction extension of blade ring 40, and combined with the one side of blade ring 40 and middle chain bar 42.Further, since blade ring 40 are formed as annular, so circumference of multiple 3rd bars 43 along blade ring 40 is arranged in a manner of being separated by preset space length.

With the rotation of blade ring 40, it is connected to periphery of the 3rd bar 43 of blade ring 40 along blade ring 40 and moves, And the multiple middle chain bars 42 for being connected to the 3rd bar 43 rotate and its arranged direction changes.

Middle chain bar 42 is placed in the basal surface of housing 20, and is separated by preset space length in a manner of surrounding and introduce stream 61 And arrange.The one end not being connected with three linkses 43 is connected to the 4th chain bar 51.Therefore, middle chain bar 42 is by the 3rd bar 43 It is mobile and rotated using the 4th bar 51 as rotary shaft.Further, since middle chain bar 42 is configured to multiple, so the 4th bar 51 are also configured to multiple.

4th bar 51 be penetrate housing 20 basal surface and extend to the inscape of blade 50, it is preferable that along with leaf The vertical direction of loop 40, i.e. parallel with the rotary shaft of blade ring 40 direction extension, so as to middle chain bar 42 and blade 50 With reference to.Only, because the rotary shaft of blade ring 40 is via the axle at the center for introducing stream 61, so the 4th bar 51 and centre The rotary shaft of chain bar 42 and the rotary shaft of blade ring 40 are side by side, but and non-uniform.Due to the substrate of the 4th bar 51 insertion housing 20 Face, so the movement towards the other direction vertical with length direction is limited by housing 20.

Hereinafter, connection of the reference picture 7 to composition according to the inscape of the diffuser 2 of another embodiment of the present utility model Relation is observed.

Fig. 7 is the profile for the compressor 1 for using the diffuser 2 according to an embodiment of the present utility model.

Reference picture 7, it can confirm that following path：Fluid enters compressor 1 by the introducing stream 61 of compressor 1 Inside, and compressed by impeller 60, and scroll casing 4 is passed to by diffuser 2.

Due to can confirm that the annexation between pivot chain bar 30, the first bar 21 and the second bar 41 in figure 6, so In the figure 7, the attachment structure from blade ring 40 untill blade 50 is illustrated.

Blade ring 40, which surrounds, introduces stream 61, and is introduced into stream 61 and is rotated as axle.Multiple 3rd bars 43 are in shell Extend along the direction vertical with blade ring 40 in body 20, what the multiple 3rd bar 43 was connected to blade ring 40 is connected with second The opposing face of the one side of bar 41.One end of 3rd bar 43 of extension is connected to multiple middle chain bars 42.Middle chain bar 42 is again The one end for the 4th bar 51 for being connected to the basal surface of insertion housing 20 and extending, and the other end of the 4th bar 51 is connected to blade 50。

Therefore, by the rotation of blade ring 40, periphery of the 3rd bar 43 along blade ring 40 and move, and by the 3rd The movement of bar 43, middle chain bar 42 rotate using the 4th bar 51 as center.4th dry 51 by the rotation of middle chain bar 42 and Rotated using itself as rotary shaft, and with the rotation of the 4th bar 51, with the blade 50 that the 4th bar 51 is connected by the 4th bar 51 rotate as rotary shaft, so as to change arranged direction.

The lateral surface of basal part of multiple blades 50 in housing 20 is disposed in a manner of surrounding impeller 60, and with vertically The mode for being connected to housing 20 is formed in the external shell 20 being connected with scroll casing 4, so as to avoid compressed air from leaking.

The rotary shaft of first bar 21, the second bar 41 and blade ring 40 can be formed as parallel to each other, but it is non-each other Unanimously.

Hereinafter, reference picture 8 according to the diffuser 2 of an embodiment of the present utility model to Figure 13 and to passing through pivot chain bar 30 Rotation and the process that changes the arranged direction of blade 50 illustrate.

Fig. 8 is to show to be connected to pivot chain bar 30 according to the actuator 10 of the diffuser 2 of an embodiment of the present utility model Situation stereogram.

Reference picture 8, the actuator 10 included with drive division is connected to according to pivot chain bar 30 of the present utility model and is connected Actuating arm 11.In this manual, Fig. 8 state is assumed to be to the pivot chain bar 30 of basic shape variable diffuser 2 Position and illustrate.

The actuator 10 used in an embodiment of the present utility model is rotation (rotary type) actuator 10, its Be transferred to the linear actuators of turning arm differently with of the prior art will move along a straight line, will can make actuating arm 11 with drive The revolving force rotated centered on the parallel axle of swing arm 11 produces as driving force.By using revolving actuator 10, with needing By the prior art difference for changing into rotary motion that moves along a straight line, rotary motion is converted rotational motion into, therefore can be more Adequately control pivot chain bar 30.

The actuating arm 11 for being connected with revolving actuator 10 and transmitting drive force to pivot chain bar 30 can be arranged to and have The rotary shaft vertical with the rotary shaft of the first bar 21.Actuating arm 11 has as the structure combined with pivot chain bar 30 in its one end Power transfering part 12, and power transfering part 12 can extend along the direction vertical with the rotary shaft of actuating arm 11.Therefore, By the rotation of actuating arm 11, power transfering part 12 can be rotated centered on the rotary shaft of actuating arm 11.

Power transfering part 12 is incorporated into the input 31 of pivot chain bar 30.The input 31 of pivot chain bar 30 is as described above Be formed as spherical state.And power transfering part 12 is formed as linking up with (hook) 13 structure, although so that the spherical state being capable of edge The length direction of power transfering part 12 and slide, but will not be departed from other direction.Therefore, input 31 is inserted into Link up with 13, so as to slip and movement in hook 13 with the rotation of power transfering part 12.

Fig. 9 is to show to the transmission driving force of pivot chain bar 30 to be made according to the actuator 10 of diffuser 2 of the present utility model The stereogram of its situation rotated.

Reference picture 9, actuator 10 are run, so as to which power transfering part 12 is with the rotation of actuating arm 11 and with actuating arm 11 Rotated centered on rotary shaft.Due to the hook 13 in the power transfering part 12 along the direction extension vertical with actuating arm 11 Inserted with input 31 in structure, so the input 31 in hook 13 will be moved together towards power transfering part 12 Position movement, rotated centered on the first bar 21 so as to pivot chain bar 30.Compared with Fig. 8, it is known that be illustrated in Fig. 9 pivot Axle chain bar 30 has carried out anticlockwise rotation centered on the first bar 21.

Figure 10 is the plan according to the diffuser 2 of an embodiment of the present utility model.Figure 11 is to show to make according to this reality The plan of the situation to be worked with the pivot chain bar 30 of the diffuser 2 of a new embodiment.

In the state of Figure 10, become Figure 11 state by the transmission of driving force.Pivot chain bar 30 is with driving force It is passed to input 31 and is rotated with the first bar 21 for rotary shaft.

Pivot chain bar 30 output end 32 formed with slot, and the second bar 41 can be along the length side of pivot chain bar 30 The slot is incorporated into being slidably inserted into, therefore as the rotation of pivot chain bar 30, the second bar 41 will be exported with being inserted in The state at end 32 is slided and moved.

Meanwhile second bar 41 due to being incorporated into blade ring 40, so can be moved along the periphery of blade ring 40, and with The movement of the second bar 41, blade ring 40 will be rotated centered on introducing stream 61.

With the rotation of blade ring 40, being connected to multiple 3rd bars 43 of blade ring 40 rotates multiple middle chain bars 42, And its rotary shaft is changed into the 4th bar 51.The content continued from the 4th bar 51 is by described in the explanation for Figure 12 and Figure 13.

Reference picture 10 and Figure 11 it has been confirmed that driving force is passed to pivot chain bar 30 and rotates pivot chain bar 30, according to This blade wheel 40 rotates and middle chain bar 42 rotates, so as to change arranged direction.

Reference picture 10 and Figure 11 are it has been confirmed that the bar 21 of pivot chain bar 30 and first and the second bar 41 are entirely located in housing 20 Side.Therefore, compared to prior art, the mobile radius and range shorter of the inscape of movement in outside, so as to reduce The overall dimensions of diffuser 2.

In addition, the first bar 21 connects at the center of pivot chain bar 30 as rotary shaft, so as to as applying power Point input 31 and as transmission power point output end 32 between equipped with rotary shaft.Therefore, do not have compared in central part The axle (shaft) for having rotary shaft and being directly connected to control ring turns into the prior art of rotary shaft, more can critically make pivot Axle chain bar 30 rotates.

Figure 12 is the plane for showing the situation according to the blade 50 of the diffuser 2 of an embodiment of the present utility model opening Figure.Figure 13 is the plan for showing the situation according to the closing of the blade 50 of the diffuser 2 of an embodiment of the present utility model.

Diffuser 2 performs following function：Receive the fluid for the high pressure discharged from the impeller 60 of rotation and made by guiding Fluid is moved by predetermined stream to scroll casing 4.Therefore, there are the multiple blades 50 obliquely arranged, tilted for being formed Stream so that the fluid of the high pressure received from the impeller 60 of rotation can be moved to scroll casing 4 naturally.

Multiple blades 50 are connected by penetrating the 4th bar 51 of housing 20 with middle chain bar 42, therefore with middle chain bar 42 rotation, multiple blades 50 are rotated by the 4th bar 51 to receive, so as to be rotated centered on the 4th bar 51.Cause This, the arranged direction of blade 50 changes as shown in FIG. 12 and 13, and the angle that horizontal line is formed with blade 50 can change Become (A1->A2).Because multiple blades 50 are circumferentially arranged in a direction, and is connected with one end of blade 50 Four bars 51, so changing with the arranged direction of blade 50, the aperture of the stream formed between blade 50 and blade 50 can also change Become.Therefore, blade can be opened as illustrated in fig. 10, can also be closed blade 50 as illustrated in fig. 11 and be made fluid can not be from leaf Wheel 60 is discharged to scroll casing 4, and can maintain the aperture of intermediate degree.By changing the aperture of stream, pass through from impeller 60 Diffuser 2 and to scroll casing 4 discharge flow can be adjusted according to the selection of user.

In summary, Fig. 8, Figure 10 and Figure 12 are shown in the variable diffusion of shape according to an embodiment of the present utility model The blade 50 of device 2 be opened as illustrated in fig. 12 in the case of each inscape arranged direction and position；Fig. 9, Figure 11 And Figure 13 show the blade of same shape variable diffuser 2 it is pent as illustrated in fig. 13 in the case of each composition will The arranged direction of element and position.Therefore, as control signal is passed to drive division by user, drive division can along a direction or Other direction is rotated, and the feelings that the state of blade 50 can be converted to close off according to the rotation from the situation being opened Shape, vice versa.

It is appreciated that the utility model is not changing per capita with ABC in the technical field belonging to the utility model Other specific forms can be also implemented as in the case of becoming its technological thought or essential feature.It is it is to be understood, therefore, that above Described in embodiment in all respects on be exemplary rather than limitation.The scope of the utility model will by right The scope described in book is asked to show, rather than above-mentioned detailed description, and need to be construed to：Remember from claims The form of all changes or deformation derived from the implication of load, scope and its equivalents is all contained in model of the present utility model In enclosing.

Although the utility model is relatively described with preferred embodiment mentioned above, reality is not being departed from Various modification or deformation can be realized with the case of new spirit and scope.Therefore, in the model of appended claims In enclosing, as long as belonging to purport of the present utility model, then above-mentioned modification or deformation can be included.

Claims

A kind of 1. shape variable diffuser, it is characterised in that including：

Housing；

First bar, the housing is fixed on, and is axially extended from the housing；

Pivot chain bar, it is rotatably engaged in first bar, and receives by the driving force of drive division offer and with described first Rotated centered on bar；

Second bar, it is incorporated into the output end of the pivot chain bar and moves,

And including：Blade ring, rotated by the movement of second bar；And

Multiple blades, arranged direction change with the rotation of the blade ring,

The rotary shaft of first bar, second bar and the blade ring is parallel to each other and inconsistent.
2. shape variable diffuser as claimed in claim 1, it is characterised in that

The slot that the output end of the pivot chain bar extends equipped with the length direction along the pivot chain bar,

Second bar is inserted in the slot and is slidably joined in the slot.
3. shape variable diffuser as claimed in claim 2, it is characterised in that

One end on the length direction of the slot is opened.
4. shape variable diffuser as claimed in claim 1, it is characterised in that

The central part of the pivot chain bar is rotatably engaged in first bar,

The input of the pivot chain bar is connected to the drive division,

The output end and the input are respectively arranged in the phase each other of the pivot chain bar on the basis of first bar Anti- position.
5. shape variable diffuser as claimed in claim 1, it is characterised in that

The pivot chain bar and second bar are so that the length direction of the length direction of the pivot chain bar and second bar Mode perpendicular to one another combines.
6. shape variable diffuser as claimed in claim 1, it is characterised in that

As the pivot chain bar rotates, periphery of second bar along the blade ring and move.
7. shape variable diffuser as claimed in claim 1, it is characterised in that

The drive division includes：

Actuator；And

Actuating arm, it is connected with the input provisioned in the pivot chain bar, and the driving force transmission that will be received from the actuator To the pivot chain bar.
8. shape variable diffuser as claimed in claim 7, it is characterised in that

The actuator is the revolving actuator for rotating the actuating arm.
9. shape variable diffuser as claimed in claim 8, it is characterised in that

Rotary shaft of the rotary shaft of the actuating arm perpendicular to first bar.
10. shape variable diffuser as claimed in claim 7, it is characterised in that

The input is formed as spherical,

The actuating arm with one end that the pivot chain bar is combined formed with the extension that the input can be made to insert and slide Hook.
11. shape variable diffuser as claimed in claim 1, it is characterised in that

The housing internally houses first bar, the second bar and blade ring.
12. shape variable diffuser as claimed in claim 1, it is characterised in that

Also include multiple middle chain bars that arranged direction changes with the rotation of the blade ring,

The arranged direction of the multiple blade changes with the change of the arranged direction of the multiple middle chain bar.
13. shape variable diffuser as claimed in claim 12, it is characterised in that also include：

Multiple 3rd bars, the blade ring is connected with the multiple middle chain bar, and by the blade ring rotation and Moved along the periphery of the blade ring；

Multiple 4th bars, the multiple blade is connected with the multiple middle chain bar, and along the multiple middle chain bar Rotary shaft and extend, and according to the change of the arranged direction of the multiple middle chain bar and with the rotation of the middle chain bar Rotated centered on axle.
14. shape variable diffuser as claimed in claim 13, it is characterised in that

As the multiple blade is turned by the multiple 4th bar centered on the rotary shaft of the multiple intermediate bar Dynamic, the arranged direction of the multiple blade changes.
15. shape variable diffuser as claimed in claim 12, it is characterised in that

The rotary shaft of the multiple middle chain bar is parallel with the rotary shaft of the blade ring, and with the rotary shaft of the blade ring It is inconsistent.