CN112983880A - Through-flow fan driving shaft connecting device - Google Patents
Through-flow fan driving shaft connecting device Download PDFInfo
- Publication number
- CN112983880A CN112983880A CN202110205106.5A CN202110205106A CN112983880A CN 112983880 A CN112983880 A CN 112983880A CN 202110205106 A CN202110205106 A CN 202110205106A CN 112983880 A CN112983880 A CN 112983880A
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- China
- Prior art keywords
- control head
- fixed
- head
- fixedly connected
- drive shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of cross-flow fans and discloses a cross-flow fan driving shaft connecting device which comprises a driving shaft, wherein coil springs are fixedly connected to the outer side of the driving shaft at equal angles in the circumferential direction respectively, the top ends of the coil springs are fixedly connected with a movable control head, the top end of the movable control head is fixedly connected with an elastic air bag, a two-way air valve is fixedly connected to the inner part of the elastic air bag, and a fixing block is fixedly connected between the two coil springs. Support through between movable control head and the fixed control head and promote the rotation that makes drive shaft control fixed control head and impeller, the centrifugal force control movable control head when rotating just can act on when the drive shaft rotates to realized can rotating together with the fixed control head when the motor circular telegram, movable control head and fixed control head rotate together not together when the motor cuts off the power supply, it generates heat to continue to rotate coil together after having avoided the motor to cut off the power supply, service life is improved.
Description
Technical Field
The invention relates to the technical field of cross-flow fans, in particular to a connecting device for a drive shaft of a cross-flow fan.
Background
The cross-flow fan consists of an impeller, an air duct and a motor, wherein the motor is a driving shaft which rotates, when the impeller is driven by the driving shaft to rotate, air flow enters from the opening part of the impeller, passes through a blade grid and the impeller to the inside, and is discharged into a volute from the blade grid on the other surface to form working air flow, the air flow line in the impeller is arc-shaped, a vortex is also arranged in the impeller, and the center of the vortex is close to the inner circumference of the impeller and is close to a volute tongue.
During the use, the motor makes the drive shaft rotate, the drive shaft drives the impeller and rotates and make the air current get into from one side, lead to from the opposite side again after the inside vortex that forms of impeller, there is the air flow in its impeller inside always, when the motor outage, make the drive shaft stall back, the drive impeller that the vortex in the impeller can last rotates and drives the drive shaft and rotate, and rotate and just can stop after a period of time, thereby make the drive shaft drive coil rotatory in motor inside, lead to coil electricity generation in the motor, make the coil in the motor generate heat, make the insulating temperature of motor winding rise, and it is very strong to the reaction of high temperature to insulate, can age with higher speed, reduce life.
Disclosure of Invention
Aiming at the defects of the conventional cross-flow fan in the use process in the background art, the invention provides the cross-flow fan driving shaft connecting device which has the advantages of preventing coils from prolonging the service life and solving the technical problems in the background art.
The invention provides the following technical scheme: a cross flow fan driving shaft connecting device comprises a driving shaft, wherein the outer side of the driving shaft is fixedly connected with coil springs in an equal angle mode in the circumferential direction, the top ends of the coil springs are fixedly connected with a movable control head, the top end of the movable control head is fixedly connected with an elastic air bag, a two-way air valve is fixedly connected inside the elastic air bag, a fixed block is fixedly connected between the two coil springs, T-shaped grooves are respectively formed in two inner sides of the fixed block, the transverse edges of the T-shaped grooves in two sides of the fixed block face the direction of the driving shaft, a fixed spring I is fixedly connected to the top end of each T-shaped groove, a fixed head I is fixedly connected to the bottom end of each fixed spring I, a fixed head II is movably clamped at the bottom end of each fixed head I, a groove is formed in the top end of each fixed head II, the fixed head II is movably, one side of the movable control head is movably connected with a fixed control head, the outer side of the fixed control head is fixedly connected with an impeller, and the other end of the bidirectional air valve is communicated with the inside of the impeller.
Preferably, the distance from one side edge of the first circle at the top end of the coil spring to the fixed block is one fifth of the diameter of the driving shaft, the distance from one side edge of the second circle at the top end of the coil spring to the fixed block is one third of the diameter of the driving shaft, and the first circle at the top end of the coil spring and the fixed head II are opposite magnets with attractive magnetism.
Preferably, the top end part of the movable control head and the fixed control head are in a quarter ellipse divided by a long axis and a short axis, and the half short axis sides of the movable control head and the fixed control head are abutted in the using process of the device.
Preferably, the shape of the elastic air bag is the same as the shape of the top end surface of the movable control head.
Preferably, one side of the fixing head II extending out of the fixing block is conical, and the extending length of the fixing head II is one third of the diameter of the driving shaft.
The invention has the following beneficial effects:
1. the driving shaft controls the fixed control head and the impeller to rotate by pushing the movable control head and the fixed control head, and the centrifugal force during rotation controls the movable control head to act only when the driving shaft rotates, so that the movable control head and the fixed control head can rotate together when the motor is powered on, and the movable control head and the fixed control head do not rotate together when the motor is powered off, thereby avoiding the heating of a coil which continuously rotates together after the motor is powered off and prolonging the service life.
2. When the motor is powered off, the movable control head does not rotate, the fixed control head rotates, the fixed control head extrudes the elastic air bag, air in the elastic air bag is blown to the interior of the impeller through the two-way air valve to disturb the vortex in the impeller, and when the elastic air bag is not extruded and recovers the original shape, the air flow in the impeller is sucked through the two-way air valve to further disturb the vortex in the impeller, so that the driving force of the fixed control head and the impeller driven by the vortex is reduced, the rotating time of the fixed control head and the impeller is reduced, and the fixed control head and the impeller are quickly stopped.
3. The invention can provide the functions of shock absorption and pressure resistance when the movable control head moves through the elastic air bag, and improves the service life of the movable control head.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: 1. a drive shaft; 2. a coil spring; 3. a movable control head; 4. an elastic air bag; 5. a two-way air valve; 6. a fixed block; 7. fixing a spring I; 8. a fixed head I; 9. a fixed head II; 10. fixing a spring II; 11. fixing the control head; 12. an impeller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a through-flow fan driving shaft connecting device comprises a driving shaft 1, a coil spring 2 is fixedly connected to the outer side of the driving shaft 1 at equal angles in the circumferential direction, a movable control head 3 is fixedly connected to the top end of the coil spring 2, an elastic air bag 4 is fixedly connected to the top end of the movable control head 3, a two-way air valve 5 is fixedly connected to the inner portion of the elastic air bag 4, a fixed block 6 is fixedly connected between the two coil springs 2, T-shaped grooves are respectively formed in two inner sides of the fixed block 6, the transverse edges of the T-shaped grooves in two sides of the fixed block 6 face the driving shaft 1, a fixed spring i 7 is fixedly connected to the top end of the T-shaped groove, a fixed head i 8 is fixedly connected to the bottom end of the fixed head i 8, a fixed head ii 9 is movably clamped to the bottom end of the fixed head i 8, one side of the fixed head II 9 is fixedly connected with a fixed spring II 10, one side of the movable control head 3 is movably connected with a fixed control head 11, the outer side of the fixed control head 11 is fixedly connected with an impeller 12, and the other end of the bidirectional air valve 5 is led to the inside of the impeller 12.
Wherein, the distance of one side edge of the first circle in coil spring 2 top apart from fixed block 6 is one fifth of drive shaft 1 diameter, the distance of one side edge of the top second circle of coil spring 2 apart from fixed block 6 is one third of drive shaft 1 diameter, the first circle in top of coil spring 2 and fixed head II 9 are the opposite sex magnet that magnetism attracts mutually, fixed head II 9 stretches out one side shape of fixed block 6 and is the circular cone type, and fixed head II 9 stretches out length and is the one third of drive shaft 1 diameter, only first circle can be fixed on the top that makes coil spring 2, thereby make the movable control head 3 can be taken in inside one side of fixed block 6 completely, make the device use accurate.
Wherein, the top part of activity control head 3 and the shape of fixed control head 11 all are the quarter ellipse through major axis and minor axis division, and the half minor axis limit of activity control head 3 and fixed control head 11 offsets in the use of device, the shape of elasticity gasbag 4 is the same with the top surface shape of activity control head 3, make fixed control head 11 when the outage continues the motion, convert into fixed control head 11 and promote activity control head 3, and extrude elasticity gasbag 4 and make activity control head 3 shrink, thereby avoid fixed control head 11 to promote activity control head 3 to continue the motion, and can disturb the inside air vortex of impeller 12 through two-way pneumatic valve 5, improve outage efficiency.
The use method (working principle) of the invention is as follows:
when the motor is powered off, the driving shaft 1 stops rotating clockwise to drive the coil spring 2 and the fixed block 6 to stop rotating, the fixed head I8 in the fixed block 6 loses centrifugal force and is elastically pushed by the fixed spring I7 to move towards the top end of the fixed head II 9, the impeller 12 and the fixed control head 11 continue rotating clockwise due to internal vortex, so that one side of the fixed control head 11 is propped against the elastic air bag 4 at the top end of the movable control head 3 and extrudes the elastic air bag 4 to be propped against one side of the movable control head 3, air flow in the elastic air bag 4 is blown towards the inside of the impeller 12 through the two-way air valve 5, meanwhile, the movable control head 3 moves towards the driving shaft 1 and enters one side of the fixed block 6, namely the coil spring 2 is compressed integrally, the first circle at the top end of the coil spring 2 moves towards the inside of the fixed block 6, and when passing through the outside of the fixed head II 9, make fixing spring II 10 elongated by fixing head II 9, fixing head I8 gets into the top recess of fixing head II 9, and block fixing head II 9 and make fixing spring II 10 elastic fixation, thereby fixed coil spring 2 makes coil spring 2 inside fixed in one side of fixed block 6, elasticity gasbag 4 does not receive the extrusion of fixed control head 11 simultaneously, elasticity gasbag 4 inhales the inside gaseous reconversion of impeller 12 through two-way pneumatic valve 5, thereby make the top of movable control head 3 break away from fixed control head 11, make fixed control head 11 and impeller 12 self rotate until stopping.
When the motor is electrified, the driving shaft 1 starts to rotate clockwise to drive the coil spring 2 and the fixed block 6 to rotate, the fixed head I8 in the fixed block 6 moves towards the outer side of the driving shaft 1 away from the fixed head II 9 due to centrifugal force, the movable control head 3 is also under the action of centrifugal force, the coil spring 2 is pulled to lead the coil spring 2 to move towards the outer side of the driving shaft 1, namely the force of the whole coil spring 2 moving towards the outer side of the driving shaft 1 is increased, meanwhile, the first circle at the top end of the coil spring 2 pushes the fixed head II 9 to move towards the fixed block 6 due to the shape of the fixed head II 9, the fixed spring II 10 contracts to drive the fixed head II 9 to retract into the fixed block 6, the coil spring 2 is released, the coil spring 2 pushes the movable control head 3 to move upwards to pop up, and pushes one side of the fixed control head 11 between the circumferential directions of the, the application is carried out.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A cross flow fan drive shaft connection device comprising a drive shaft (1), characterized in that: the constant-angle air bag type air compressor is characterized in that coil springs (2) are fixedly connected to the outer side of a driving shaft (1) in the circumferential direction at equal angles respectively, a movable control head (3) is fixedly connected to the top end of each coil spring (2), an elastic air bag (4) is fixedly connected to the top end of each movable control head (3), a two-way air valve (5) is fixedly connected to the inner portion of each elastic air bag (4), a fixing block (6) is fixedly connected between every two coil springs (2), T-shaped grooves are formed in two inner sides of each fixing block (6) respectively, the transverse sides of the T-shaped grooves in two sides of each fixing block (6) face the direction of the driving shaft (1), a fixing spring I (7) is fixedly connected to the top end of each T-shaped groove, a fixing head I (8) is fixedly connected to the bottom end of each fixing spring I (7), a fixing head, and fixed head II (9) are through the bottom activity joint of recess and fixed head I (8), one side fixedly connected with fixed spring II (10) of fixed head II (9), one side swing joint of activity control head (3) has fixed control head (11), the outside fixedly connected with impeller (12) of fixed control head (11), the other end of two-way pneumatic valve (5) accesss to the inside of impeller (12).
2. A crossflow fan drive shaft connection as claimed in claim 1, wherein: the distance of one side edge of the first circle in coil spring (2) top apart from fixed block (6) is one fifth of drive shaft (1) diameter, the distance of one side edge of the top second circle of coil spring (2) apart from fixed block (6) is one third of drive shaft (1) diameter, the first circle in top and fixed head II (9) of coil spring (2) are the opposite magnet that magnetism attracted.
3. A crossflow fan drive shaft connection as claimed in claim 1, wherein: the shapes of the top end part of the movable control head (3) and the fixed control head (11) are quarter ellipses divided by a long axis and a short axis, and the half short axis sides of the movable control head (3) and the fixed control head (11) are mutually abutted in the using process of the device.
4. A crossflow fan drive shaft connection as claimed in claim 1, wherein: the shape of the elastic air bag (4) is the same as the shape of the top end surface of the movable control head (3).
5. A crossflow fan drive shaft connection as claimed in claim 1, wherein: one side of the fixing head II (9) extending out of the fixing block (6) is conical, and the extending length of the fixing head II (9) is one third of the diameter of the driving shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110205106.5A CN112983880B (en) | 2021-02-24 | 2021-02-24 | Through-flow fan drive shaft connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110205106.5A CN112983880B (en) | 2021-02-24 | 2021-02-24 | Through-flow fan drive shaft connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112983880A true CN112983880A (en) | 2021-06-18 |
| CN112983880B CN112983880B (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110205106.5A Active CN112983880B (en) | 2021-02-24 | 2021-02-24 | Through-flow fan drive shaft connecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112983880B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170275B1 (en) * | 1998-11-05 | 2001-01-09 | Kabushiki Kaisha Toshiba | Fan for refrigerator |
| US20070284952A1 (en) * | 2006-04-28 | 2007-12-13 | Olai Ihle | Permanent magnet rotor |
| CN101532512A (en) * | 2008-03-10 | 2009-09-16 | 乐金电子(天津)电器有限公司 | Through-flow fan |
| CN104153948A (en) * | 2014-07-08 | 2014-11-19 | 魏晓兵 | Overload protector for wind driven generator |
| CN104989658A (en) * | 2015-06-17 | 2015-10-21 | 成都瑞达科恒科技有限公司 | Detachable type automatically-cooling radiating fan |
| CN207830187U (en) * | 2018-02-05 | 2018-09-07 | 东莞市一电电子科技有限公司 | A kind of fan motor of installation easy to disassemble |
| CN207879719U (en) * | 2018-01-24 | 2018-09-18 | 中山威良机电有限公司 | A kind of water circulating pump soundproof shielding case covering device |
| CN109306968A (en) * | 2018-07-09 | 2019-02-05 | 广东美的环境电器制造有限公司 | Fan |
| CN110821858A (en) * | 2019-10-14 | 2020-02-21 | 江仁燕 | Mechanism for flexibly connecting cross-flow fan impeller and motor of indoor unit of household air conditioner |
| CN113586478A (en) * | 2021-08-30 | 2021-11-02 | 崔龙兴 | High-efficiency gas compressor |
-
2021
- 2021-02-24 CN CN202110205106.5A patent/CN112983880B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170275B1 (en) * | 1998-11-05 | 2001-01-09 | Kabushiki Kaisha Toshiba | Fan for refrigerator |
| US20070284952A1 (en) * | 2006-04-28 | 2007-12-13 | Olai Ihle | Permanent magnet rotor |
| CN101532512A (en) * | 2008-03-10 | 2009-09-16 | 乐金电子(天津)电器有限公司 | Through-flow fan |
| CN104153948A (en) * | 2014-07-08 | 2014-11-19 | 魏晓兵 | Overload protector for wind driven generator |
| CN104989658A (en) * | 2015-06-17 | 2015-10-21 | 成都瑞达科恒科技有限公司 | Detachable type automatically-cooling radiating fan |
| CN207879719U (en) * | 2018-01-24 | 2018-09-18 | 中山威良机电有限公司 | A kind of water circulating pump soundproof shielding case covering device |
| CN207830187U (en) * | 2018-02-05 | 2018-09-07 | 东莞市一电电子科技有限公司 | A kind of fan motor of installation easy to disassemble |
| CN109306968A (en) * | 2018-07-09 | 2019-02-05 | 广东美的环境电器制造有限公司 | Fan |
| CN110821858A (en) * | 2019-10-14 | 2020-02-21 | 江仁燕 | Mechanism for flexibly connecting cross-flow fan impeller and motor of indoor unit of household air conditioner |
| CN113586478A (en) * | 2021-08-30 | 2021-11-02 | 崔龙兴 | High-efficiency gas compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112983880B (en) | 2022-07-05 |
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Effective date of registration: 20220615 Address after: 400000 No. 2 Wanshou Road, Nanping, Nan'an District, Chongqing Applicant after: CHONGQING SHANGFANG AUTO PARTS CO.,LTD. Address before: 405400 No.17, Daba village, Houba Town, Kaizhou District, Chongqing Applicant before: Yu Lunqing |
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