CN103982465A - Wind guide impeller assembly of centrifugal blower - Google Patents

Wind guide impeller assembly of centrifugal blower Download PDF

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Publication number
CN103982465A
CN103982465A CN201410241042.4A CN201410241042A CN103982465A CN 103982465 A CN103982465 A CN 103982465A CN 201410241042 A CN201410241042 A CN 201410241042A CN 103982465 A CN103982465 A CN 103982465A
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CN
China
Prior art keywords
impeller
hole
guide sleeve
air guide
breach
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CN201410241042.4A
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Chinese (zh)
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CN103982465B (en
Inventor
刘淑云
吴立华
董继勇
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南京磁谷科技有限公司
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Priority to CN201410241042.4A priority Critical patent/CN103982465B/en
Publication of CN103982465A publication Critical patent/CN103982465A/en
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Publication of CN103982465B publication Critical patent/CN103982465B/en

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Abstract

The invention discloses a wind guide impeller assembly of a centrifugal blower. The impeller is pressed tightly through threaded connection of compression bolts and a rotor, pressing force can be adjusted to designed pressing force, bending parts bent upwards of lock washers stop the compression bolts from rotating, an anti-rotating function is performed, due to the fact that the lock washers are circular, the lock washers can be bent up at any direction and be free of influences of positions and directions, then after an air guide sleeve covers a structure assembled by the compression bolts, the lock washers and clamp springs, the rotation of the air guide sleeve is restrained through the matching of a lug formed on the air guide sleeve and a first notch, and the motion of the air guide sleeve in the vertical direction is restrained through matching of a window formed in the air guide sleeve and a buckling part. The wind guide impeller assembly of the centrifugal blower has the advantages of being good in anti-loose effect, good in air suction effect and the like.

Description

A kind of centrifugal blower impeller inducer assembly

Technical field:

The present invention relates to a kind of centrifugal blower impeller inducer assembly, it belongs to field of mechanical technique.

Background technique:

At present in the gentle suspension centrifugal blower of magnetic suspension centrifugal blower, flow deflecting cone conventionally adopts and is threaded with the Placement of rotor, the requirement on machining accuracy of thread connecting mode double thread is high, in the time that the screw thread of flow deflecting cone bottom is connected with rotor screw thread, need to tighten flow deflecting cone with spanner, therefore be processed with outer six sides in the above, can have larger impact to air-flow like this, be unfavorable for flowing of air-flow.Simultaneously existing being threaded by screw thread place cementing and then reach the object of locking thread, but glue can affect dismounting, and tightening torque precision also can be affected.

Therefore, the necessary deficiency of prior art being improved to solve prior art.

Summary of the invention:

The object of the invention is for the deficiencies in the prior art, a kind of centrifugal blower impeller inducer assembly is provided, it has convenient disassembly and impeller intensity advantages of higher.

The present invention adopts following technological scheme: a kind of centrifugal blower impeller inducer assembly, and it comprises rotor; Be installed on epitrochanterian impeller; Be installed on the jump ring on impeller upper surface; Be installed on the lock washer on jump ring upper surface; Hold-down bolt; Counterweight screws and air guide sleeve, the central shaft hole of described impeller coordinates with rotor, on the upper-end surface of described impeller, be recessed to form along diametric(al) the first breach that the upper-end surface of impeller is divided into two parts downwards, on the upper-end surface of described impeller, evenly interval is formed with the screw hole that some above-below directions extend; Described jump ring comprise be provided with the main part of the first through hole, from the clamping part that upwards bending is extended of the outer surface of described main part and be formed between described clamping part and with the second breach that the first breach aligns on above-below direction, on the central shaft hole above-below direction of described the first through hole and impeller, connect; Described lock washer comprise be provided with the board body part of the second through hole and extend to form downwards from the lower surface of board body part be snapped in the projection in the first breach and the second breach, on the central shaft hole above-below direction of described the second through hole and the first through hole and impeller, connect; After the central shaft hole of the lower end of described hold-down bolt through the second through hole, the first through hole, impeller, screw in the screwed hole of centre that is installed on described rotor; Described counterweight screws is installed in described screw hole; On described lock washer, be also formed with the folding part that the upper end portion that is positioned at the hold-down bolt on described lock washer upper surface is blocked; In described air guide sleeve, be formed with the consistent accommodation section of structure after installing with hold-down bolt, lock washer, jump ring, on the lower wall surface of described air guide sleeve, be formed with projection that be clasped mutually with described the first breach and then that restriction air guide sleeve rotates after air guide sleeve is installed on impeller, on the side wall surface of described air guide sleeve, be formed with the window moving up and down with restriction air guide sleeve being clasped mutually with described clamping part.

Further, described folding part includes two that are oppositely arranged altogether, and described folding part fastens in the outer-hexagonal plane of hold-down bolt.

Further, the plectane that described main part is hollow shape, described clamping part includes along the diametric of main part and is distributed in two of both sides that main part is relative, and the end of described clamping part outwards turns down and forms the protuberance being snapped in described window.

Further, described the second breach forms along another diametric(al) of main part, and described the second breach is between two clamping parts.

Further, the second breach of described jump ring is connected with the second through hole.

Further, described board body part is large step-like of the little upper diameter of lower diameter.

The present invention has following beneficial effect:

1). centrifugal blower impeller inducer assembly of the present invention is threaded impeller is compressed with rotor by hold-down bolt, impacting force can be adjusted to the impacting force of design, the folding part that lock washer is upwards turned up can not be rotated hold-down bolt, play the effect of anti-rotation, because lock washer is circular, it can be turned up in any direction, is not subject to the impact of locality;

2). after the structure after air guide sleeve of the present invention covers hold-down bolt, lock washer, jump ring and installs, by the projection that forms on it and the rotation of the cooperation of the first breach and then restriction air guide sleeve, the coordinating and then limit the motion of air guide sleeve on above-below direction of the window by formation it on and clamping part.

Brief description of the drawings:

Fig. 1 is the mounting structure figure of jump ring and impeller in centrifugal blower impeller inducer assembly of the present invention.

Fig. 2 is the mounting structure figure of lock washer, jump ring and impeller in centrifugal blower impeller inducer assembly of the present invention.

Fig. 3 is the mounting structure figure of counterweight screws, hold-down bolt, lock washer, jump ring and impeller in centrifugal blower impeller inducer assembly of the present invention.

Fig. 4 is the part-structure sectional view of centrifugal blower impeller inducer assembly of the present invention.

Fig. 5 is another part structure sectional view of centrifugal blower impeller inducer assembly of the present invention.

Fig. 6 is the sectional view in centrifugal blower impeller inducer assembly of the present invention.

Fig. 7 is another sectional view in centrifugal blower impeller inducer assembly of the present invention.

Wherein:

1-rotor; 2-impeller; 20-the first breach; 21-screw hole; 3-jump ring; 30-main part; 31-clamping part; 310-protuberance; 32-the first through hole; 33-the second breach; 4-lock washer; 40-the second through hole; 41-board body part; 42-projection; 43-folding part; 5-hold-down bolt; 50-outer-hexagonal plane; 6-counterweight screws; 7-air guide sleeve; 70-projection; 71-window; 8-key.

Embodiment:

Please refer to shown in Fig. 1 to Fig. 7, centrifugal blower impeller inducer assembly of the present invention comprises rotor 1; Be installed on the impeller 2 on rotor 1; Be installed on the jump ring 3 on impeller 2 upper surfaces; Lock onto the lock washer 4 on jump ring 3 upper surfaces; Hold-down bolt 5; Counterweight screws 6 and air guide sleeve 7.

The central shaft hole of impeller 2 matches with rotor 1, and wherein the central shaft hole of impeller 2 and rotor shaft align, and impeller 2 packs into rotor 1 direction, then by key 8, impeller 2 is mounted on rotor 1.On the upper-end surface of impeller 2, be recessed to form along diametric(al) the first breach 20 that the upper-end surface of impeller 2 is divided into two parts downwards, in these two parts, even interval is formed with the counterweight screws hole 21 that several above-below directions extend.Jump ring 3 comprises the clamping part 31 that upwards bending is extended that is provided with the discoideus main part 30 of the first through hole 32 and the outer surface of autonomous body 30, clamping part 31 includes two, and lay respectively at along the diameter of main part 30 both sides that main part 30 is relative, and the end of clamping part 31 outwards turns down and forms protuberance 310, along be formed with in another diametric(al) of main part 30 with impeller 2 on the second breach 33 of aligning on above-below direction of the first breach 20, this second breach 33 is between two clamping parts 31.Lock washer 4 comprise be provided with the little upper diameter of lower diameter of the second through hole 40 large be step-like board body part 41 and extend to form downwards from the lower surface of board body part 41 and be snapped in the projection 42 in the first breach 20 and the second breach 33, be butted on impeller 2 by projection 42 being snapped in the first breach 20 and the second breach 33 and then by lock washer 4 and jump ring 3 locking clamps.

Hold-down bolt 5 compressions are installed on lock washer 4 and the lower end of hold-down bolt 5 is arranged in the second through hole 40 successively, the first through hole 32, after the central shaft hole of impeller 2, tighten mutually and coordinate and then the lower end of hold-down bolt 5 be tightened in the tapped hole of rotor 1 by the screw thread on the center bore inner wall of the screw thread on hold-down bolt 5 and rotor 1, lock washer 4 is upwards turned up and formed folding part 43 according to impacting force need to being adjusted to after needed impacting force of actual design, wherein folding part 43 includes altogether relative two and folding part 43 and just in time fastens in the outer-hexagonal plane 50 of hold-down bolt 5, and then hold-down bolt 5 can not be rotated, play the effect of anti-rotation.

Counterweight screws 6 is installed in screw hole 21, and counterweight screws 6 is selected number and the position of installing according to actual needs.

Air guide sleeve 7 is the curved circular cone of bus, wherein in air guide sleeve 7, be formed with and hold-down bolt 5, lock washer 4, the consistent accommodation section of structure after jump ring 3 installs, on air guide sleeve 7, be formed with after air guide sleeve 7 is installed on impeller 2 with impeller 2 on the projection 70 that is clasped mutually of the first breach 20, by the cooperation of this projection 70 and the first breach 20 and then the rotation of restriction air guide sleeve 7, on air guide sleeve 7, be also provided with simultaneously with clamping part 31 on the window 71 that is clasped mutually of protuberance 310, by cooperation and then the motion of restriction air guide sleeve 7 on above-below direction of this window 71 and protuberance 310.

Centrifugal blower impeller inducer assembly of the present invention is threaded impeller 2 is compressed with rotor 1 by hold-down bolt 5, impacting force can be adjusted to the impacting force of design, the folding part 43 that lock washer 4 is upwards turned up can not be rotated hold-down bolt 5, play the effect of anti-rotation, because lock washer 4 is circular, it can be turned up in any direction, be not subject to the impact of locality, then balancing on impeller 2, with counterweight screws 6 balancings, covers air guide sleeve 7 just and has completed after all installing.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make under the premise without departing from the principles of the invention some improvement, and these improve and also should be considered as protection scope of the present invention.

Claims (6)

1. a centrifugal blower impeller inducer assembly, it comprises rotor (1), be installed on the impeller (2) on rotor (1), be installed on the jump ring (3) on impeller (2) upper surface, be installed on the lock washer (4) on jump ring (3) upper surface, hold-down bolt (5), counterweight screws (6) and air guide sleeve (7), it is characterized in that: the central shaft hole of described impeller (2) coordinates with rotor (1), on the upper-end surface of described impeller (2), be recessed to form along diametric(al) the first breach (20) that the upper-end surface of impeller (2) is divided into two parts downwards, on the upper-end surface of described impeller (2), evenly interval is formed with the screw hole (21) that some above-below directions extend, described jump ring (3) comprise be provided with the main part (30) of the first through hole (32), from the clamping part (31) that upwards bending is extended of the outer surface of described main part (30) and be formed at the second breach (33) between described clamping part (31) and that align with the first breach (20) on above-below direction, on the central shaft hole above-below direction of described the first through hole (32) and impeller (2), connect, described lock washer (4) comprise be provided with the board body part (41) of the second through hole (40) and extend to form downwards from the lower surface of board body part (41) be snapped in the projection (42) in the first breach (20) and the second breach (33), on the central shaft hole above-below direction of described the second through hole (40) and the first through hole (32) and impeller (2), connect, after the central shaft hole of the lower end of described hold-down bolt (5) through the second through hole (40), the first through hole (32), impeller (2), screw in the screwed hole of centre that is installed on described rotor (1), described counterweight screws (6) is installed in described screw hole (21), on described lock washer (4), be also formed with the folding part (43) that the upper end portion that is positioned at the hold-down bolt (5) on described lock washer (4) upper surface is blocked, in described air guide sleeve (7), be formed with and hold-down bolt (5), lock washer (4), the consistent accommodation section of structure after jump ring (3) installs, on the lower wall surface of described air guide sleeve (7), be formed with air guide sleeve (7) is installed on to the upper rear projection (70) that be clasped mutually with described the first breach (20) and then that restriction air guide sleeve (7) rotates of impeller (2), on the side wall surface of described air guide sleeve (7), be formed with the window (71) moving up and down with restriction air guide sleeve (7) being clasped mutually with described clamping part (31).
2. centrifugal blower impeller inducer assembly as claimed in claim 1, it is characterized in that: described folding part (43) include two that are oppositely arranged altogether, described folding part (43) fasten in the outer-hexagonal plane (50) of hold-down bolt (5).
3. centrifugal blower impeller inducer assembly as claimed in claim 2, it is characterized in that: the plectane that described main part (30) is hollow shape, described clamping part (31) includes along the diametric of main part (30) and is distributed in two of both sides that main part (30) is relative, and the end of described clamping part (31) outwards turns down and forms the protuberance (310) being snapped in described window (71).
4. centrifugal blower impeller inducer assembly as claimed in claim 3, it is characterized in that: described the second breach (33) forms along another diametric(al) of main part (30), and described the second breach (33) is positioned between two clamping parts (31).
5. centrifugal blower impeller inducer assembly as claimed in claim 4, is characterized in that: second breach (33) of described jump ring (3) is connected with the second through hole (32).
6. centrifugal blower impeller inducer assembly as claimed in claim 5, is characterized in that: described board body part (41) is large step-like of the little upper diameter of lower diameter.
CN201410241042.4A 2014-05-30 2014-05-30 A kind of centrifugal blower impeller inducer assembly CN103982465B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438495A (en) * 2016-11-21 2017-02-22 南京磁谷科技有限公司 Deflection cone structure of draught fan
US10247035B2 (en) 2015-07-24 2019-04-02 Pratt & Whitney Canada Corp. Spoke locking architecture
US10914193B2 (en) 2015-07-24 2021-02-09 Pratt & Whitney Canada Corp. Multiple spoke cooling system and method
US10920612B2 (en) 2016-07-13 2021-02-16 Pratt & Whitney Canada Corp. Mid-turbine frame spoke cooling system and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020028142A1 (en) * 1999-12-03 2002-03-07 Dewhirst Randy E. Centrifugal impeller assembly
JP2002242884A (en) * 2001-01-12 2002-08-28 Man B & W Diesel Gmbh Mounting device for impeller of radial flow compressor
CN201747671U (en) * 2010-05-19 2011-02-16 杭州振兴工业泵制造有限公司 Impeller and shaft connection structure of turbine compressor
DE102010039889A1 (en) * 2010-08-27 2012-03-01 Man Diesel & Turbo Se Device for torque-transmitting, releasable fixing of compressor wheel to drive shaft of turbo machine, has tubular-shaped fitting clamp having inner and outer surfaces which are formed in circumferential direction with constant curvature
CN202280663U (en) * 2011-10-15 2012-06-20 重庆美的通用制冷设备有限公司 Coupling structure for impeller and gear shaft of centrifugal compressor
CN102619781A (en) * 2012-04-09 2012-08-01 三一能源重工有限公司 Device and method for connecting impeller with shaft of compressor
CN203560167U (en) * 2013-09-29 2014-04-23 中国北车集团大连机车研究所有限公司 Connection structure for impeller and spindle of centrifugal air compressor
CN203892249U (en) * 2014-05-30 2014-10-22 南京磁谷科技有限公司 Ventilation impeller assembly of centrifugal blower

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020028142A1 (en) * 1999-12-03 2002-03-07 Dewhirst Randy E. Centrifugal impeller assembly
JP2002242884A (en) * 2001-01-12 2002-08-28 Man B & W Diesel Gmbh Mounting device for impeller of radial flow compressor
CN201747671U (en) * 2010-05-19 2011-02-16 杭州振兴工业泵制造有限公司 Impeller and shaft connection structure of turbine compressor
DE102010039889A1 (en) * 2010-08-27 2012-03-01 Man Diesel & Turbo Se Device for torque-transmitting, releasable fixing of compressor wheel to drive shaft of turbo machine, has tubular-shaped fitting clamp having inner and outer surfaces which are formed in circumferential direction with constant curvature
CN202280663U (en) * 2011-10-15 2012-06-20 重庆美的通用制冷设备有限公司 Coupling structure for impeller and gear shaft of centrifugal compressor
CN102619781A (en) * 2012-04-09 2012-08-01 三一能源重工有限公司 Device and method for connecting impeller with shaft of compressor
CN203560167U (en) * 2013-09-29 2014-04-23 中国北车集团大连机车研究所有限公司 Connection structure for impeller and spindle of centrifugal air compressor
CN203892249U (en) * 2014-05-30 2014-10-22 南京磁谷科技有限公司 Ventilation impeller assembly of centrifugal blower

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10247035B2 (en) 2015-07-24 2019-04-02 Pratt & Whitney Canada Corp. Spoke locking architecture
US10914193B2 (en) 2015-07-24 2021-02-09 Pratt & Whitney Canada Corp. Multiple spoke cooling system and method
US10920612B2 (en) 2016-07-13 2021-02-16 Pratt & Whitney Canada Corp. Mid-turbine frame spoke cooling system and method
CN106438495A (en) * 2016-11-21 2017-02-22 南京磁谷科技有限公司 Deflection cone structure of draught fan

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