CN2635951Y - Fan with main motor direct driven air guiding wheel - Google Patents
Fan with main motor direct driven air guiding wheel Download PDFInfo
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- CN2635951Y CN2635951Y CN 03273645 CN03273645U CN2635951Y CN 2635951 Y CN2635951 Y CN 2635951Y CN 03273645 CN03273645 CN 03273645 CN 03273645 U CN03273645 U CN 03273645U CN 2635951 Y CN2635951 Y CN 2635951Y
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- inducer
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Abstract
A blade fan that utilizes a main motor to drive the inducer directly is provided, which pertains to the technical field of fans. The main technical challenge that is overcome in the utility model is to drive the inducer directly to rotate in a controlled manner with the main motor of the fan with a simple structure at low cost. To attain that object, a reducing gearbox is mounted on the rear end cover of the main motor of the fan, and an inducing drive disk is mounted on the power output shaft of the reducing gearbox, and the inducer is mounted on the inducing drive disk. The reducing gearbox can be a two-stage pinion reducing box or a three-stage reducing box. An inducer override protection mechanism is mounted between the inducing drive disk and the inducer. By turning a control knob, the inducer can be controlled flexibly to run and stop, so as to implement expected blasting mode.
Description
Technical field
The utility model relates to the fan technical field, particularly a kind of rotary blade fan by main motor direct-drive inducer.
Background technique
Traditional rotary blade fan inducer has two kinds of driving mode, and a kind of is the wind-drive that inducer is directly sent by fan, and the adjusting of its inducer rotating speed is controlled by the impacting force that is installed in the platen on the inducer fixed center axis.This kind is simple in structure, but along with the growth of service time and the wearing and tearing of platen, the control effect is worse and worse, and is normally sometimes fast and sometimes slow, and often with the friction noise.Therefore, only being suitable for low-grade rotary blade fan uses.
Its inducer of another kind of rotary blade fan is by independent synchronous machine drives and by independent switch control, though adopt this structure to reach the purpose of convenience control inducer rotating speed, but owing to use independent synchronous machine and switch, manufacture cost height, main shortcoming are that synchronous machine damages easily, use 1 year usually after, synchronous machine just damages, cause maintenance load big, the maintenance cost height has a strong impact on image product.
Summary of the invention
The technical problems to be solved in the utility model: (1) is by the controlled rotation of fan master motor direct-drive inducer; (2) simple in structure, cost is low.
The technical solution that the utility model proposed is such: a kind of rotary blade fan of main motor direct-drive inducer, comprise fan master motor 5, fan blade 2, inducer 4, fan body 3 and protective housing 1, described main motor 5 rear end covers are equipped with dynamic retarding tooth case 9, wind-guiding drive plate 7 is installed on the output shaft of dynamic retarding tooth case 9, and inducer 4 is installed on the wind-guiding drive plate 7.Dynamic retarding tooth case 9 is directly installed on main motor 5 rear end covers, and main motor 5 back outer shafts directly insert in the dynamic retarding tooth case 9 and are connected with first order part; Dynamic retarding tooth case 9 is two-stage or the above slowing-down structure of two-stage; Between first order deceleration and second level reducing gear, be provided with power-off device and clutch for clutch control knob; The output shaft of dynamic retarding tooth case 9 and main rotor axis of electric are on same the axis.Described dynamic retarding tooth case 9 adopts the two-stage planetary gear structure, main motor 5 back outer shafts mill into flat type, in the half-moon-shaped hole of straight cutting first order symmetry eccentric 21, between the two-stage planetary reduction gear, be provided with power-off device, this device first order output disc 18 is the shoulder hole structure with the endoporus of second level symmetry eccentric 17, its aperture is the identical splined hole of diameter, and the small end of second level symmetry eccentric 17 inserts in bigger one section endoporus of first order output disc 18; One end is an external splines, the other end is the spline slide core 23 of band boss, insert in the splined hole of second level symmetry eccentric 17 and first order output disc 18 overcoat pressure spring 24 backs, the top large end face that withstands on spline slide core 23 of band ear control slide bar 11, two ears of band ear control slide bar 11 are stuck in the wedge chute that float pin wheel 13 and chock plug 10 constituted, and clutch for clutch control knob 8 is installed in the flat end of band ear control slide bar 11.Described clutch for clutch control knob 8 is positioned at the middle of rotary blade fan inducer 4.Described dynamic retarding tooth case 9 adopts three grades of deceleration tooth casees, this deceleration tooth case first order and the second level are screw rod helical gear structure, the third level is that a grade gear structure is gradually opened in outer gearing, main motor 5 back outer shafts 35 are rolled onto screw rod as the first order screw rod that slows down, with 36 engagements of first order helical gear, the output shaft of dynamic retarding tooth case and main motor 5 rotor shafts are on the same axis, first order helical gear 36 is a triangular tooth with the junction plane of second level screw rod 29, one end band shape chute of second level screw rod 29, pressure spring 30 is housed, described first order helical gear 36 on the band end face, second level screw rod 29 and pressure spring 30 together are sleeved on the stationary axle 31; Band fork lever 32 middle parts are hinged on the hinge frame of casing, the shifting fork pin of one end is stuck in the annular groove of second level screw rod 29, a other end that ties up to band declutch lever 32 of band sheath wire rope 33, the other end of band sheath wire rope 33 ties up on the clutch for clutch control knob 34, and clutch for clutch control knob 34 is installed on the fan body 3.
Described wind-guiding drive plate 7 is installed on the output shaft of dynamic retarding tooth case 9, the circular positioning ring of wind-guiding drive plate 7 is provided with three cantilever dogs, the inner cylindrical surface of inducer 4 wheel hubs equidistantly has one group of groove, the positioning ring of wind-guiding drive plate 7 cooperates with the inner cylindrical surface of inducer 4, three cantilever dogs of wind-guiding drive plate 7 are stuck in the inducer 4 wheel hub grooves, and inducer gland 6 is affixed with wind-guiding drive plate 7.
Compared with prior art, the utlity model has following beneficial effect:
(1) by the controlled rotation of main motor direct-drive inducer, can save synchronous machine, cost reduces, and the inducer running is even, long service life.
(2) simple in structure, compact, reliable, wind effect is good, convenient operation and control.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is a dynamic retarding tooth box structure schematic representation shown in Figure 1.
Fig. 3 is a wind-guiding drive plate structural representation shown in Figure 1.
Fig. 4 is an inducer wheel hub structure schematic representation shown in Figure 1.
Fig. 5 is that deceleration tooth case medium power clutch for clutch control chute shown in Figure 2 launches schematic representation.
Fig. 6 is another embodiment's of the utility model a drive mechanism schematic representation.
Wherein: 1, protective housing; 2, fan blade; 3, fan body; 4, inducer; 5, main motor; 6, gland; 7, wind-guiding drive plate; 8, clutch for clutch control knob; 9, dynamic retarding tooth case; 10, chock plug; 11, band ear control slide bar; 12, locknut; 13, unsteady pin wheel; 14, tooth case lid; 15, second level external gear; 16, gear ring; 17, second level symmetry is eccentric; 18, first order output disc; 19, external gear; 20, tooth block; 21, first order symmetry is eccentric; 22, outer shaft behind the main motor; 23, spline slide core; 24, spring; 25, big external gear; 26, fast pulley; 27, little external gear; 28, second level helical gear; 29, second level screw rod; 30, pressure spring; 31, stationary axle; 32, band declutch lever; 33, band sheath wire rope; 34, clutch for clutch control knob; 35, outer shaft behind the main motor; 36, first order helical gear.
Embodiment
By following embodiment the utility model is further elaborated.
Embodiment 1
Referring to Fig. 1-shown in Figure 5, embodiment of the utility model is equipped with fan blade 2 on the preceding outer shaft of fan master motor 5, and dynamic retarding tooth case 9 usefulness screws are installed on the rear end cover of main motor 5, and is driven by the back outer shaft of main motor 5.Wind-guiding drive plate 7 is installed on the output shaft of dynamic retarding tooth case 9, and inducer 4 is installed on the wind-guiding drive plate 7, and by inducer gland 6 inducer 4 and wind-guiding drive plate 7 is connected; The integral body that is made of above-mentioned parts is bearing on the fan body 3 with screw by the rear end cover flange of main motor 5.Safty shield 1 connects with fan body 3.
Fig. 2 is the structural representation of dynamic retarding tooth case 9 shown in Figure 1.It adopts two-stage planetary reduction gear tooth case.The first order external gear 19 that two symmetries of eccentric 21 overcoats of first order symmetry are installed, first order output disc 18 uniform pins are inserted in respectively in the uniform circular hole of external gear 19, the external tooth of external gear 19 regularly with the engagement of the left end internal tooth of gear ring 16, the right-hand member cylindrical of first order output disc 18 matches with the endoporus of gear ring 16.Tooth case left end connects tooth block 20 with bolt with gear ring 16, constitute the first order and slow down.
The segment of second level symmetry eccentric 17 inserts in the endoporus of first order output disc 18, two sections eccentric excircles of second level symmetry eccentric 17 are coated at the second level external gear 15 that two symmetries are installed respectively, the external tooth of second level external gear 15 respectively with the right section internal tooth engagement of gear ring 16, the spline slide core 23 of outer casing spring 24 is inserted in the splined hole of second level symmetry eccentric 17, the uniform pin of the pin wheel 13 of floating is corresponding to be inserted in the uniform endoporus of second level external gear 15, the inner hole sleeve of tooth case lid 14 is at the output shaft part of pin wheel 13 that floats, and its big seam cooperates with gear ring 16 tooth mouths and with bolt tooth case lid 14 and gear ring 16 connected.The band ear control slide bar 11 of packing in the endoporus of pin wheel 13 that floats reinstalls chock plug 10, and two lugs of band ear control slide bar 11 are stuck in the chute that float pin wheel 13 and chock plug 10 constituted, as shown in Figure 5.The output shaft of pin wheel 13 of floating is adorned wind-guiding drive plate 7 outward, and links with will float pin wheel 13, chock plug 10, wind-guiding drive plate 7 of locknut 12.Flat shaft part at band ear control slide bar 11 is equipped with clutch for clutch control knob 8.With screw the rear flange of tooth block 20 with main motor 5 is connected, the plat mill section of main motor 5 back outer shafts 22 inserts in the crescent moon hole of first order symmetry eccentric 21, more than constitutes dynamic retarding tooth case of the present utility model.
The endoporus of the first order output disc 18 of described dynamic retarding tooth case and second level symmetry eccentric 17 is splined hole, unsteady pin wheel 13 and chock plug 10 are to cooperate by the slip skewed slot, above-mentioned four and spline slide core 23, spring 24, band ear control slide bar 11 and clutch for clutch control knob 8 be common to be constituted power and transmits clutch mechanismes.Rotation clutch for clutch control knob 8 can change the axial position of band ear control slide bar 11, promotes spline slide core 23 thereby work with spring 24 1, realizes being connected and separating first order output disc 18 and second level symmetry eccentric 17.
Inducer overreach protection of the present utility model mechanism is made of the wind-guiding drive plate 7, inducer 4, the inducer gland 6 that are installed on dynamic retarding tooth case 9 output shafts.Inducer 4 is sleeved on the location annulus of wind-guiding drive plate 7; three dogs of wind-guiding drive plate 7 are stuck in the groove of inducer 4 wheel hubs; inducer gland 6 usefulness screws and wind-guiding drive plate 7 link; inducer 4 is clipped in the middle; under the normal condition, drive the inducer running, when stirring inducer by force or stop the inducer rotation by three dogs; three dogs can jump over from wind-guiding wheel hub groove, shield.
Embodiment 2
Fig. 6 is the another kind of drive mechanism schematic representation of described dynamic retarding tooth case 5.It adopts three grades of deceleration tooth casees, and outer shaft 35, first order helical gear 36 constitute first order screw rod helical speed reduction gear structure behind the main motor; Second level screw rod 29, second level helical gear 28 constitute second level screw rod helical speed reduction gear structure; Little external gear 27, big external gear 25 constitute third level external gear reducing gear; First order helical gear 36, second level screw rod 29, pressure spring 30, stationary axle 31, band declutch lever 32, band sheath wire rope 33, clutch for clutch control knob 34 constitute power clutch mechanism.
Described dynamic retarding case is installed in screw on the rear end cover of main motor 5, and the back outer shaft 35 of main motor 5 is the rolling screw rod, with 36 engagements of first order helical gear; First order helical gear 36, second level screw rod 29, pressure spring 30 common skies are enclosed within on the stationary axle 31, the surface of contact of the propeller boss of first order helical gear 36 and second level screw rod 29 is a lance tooth, and the thrust that is produced by spring 30 meshes described two lance tooths and transferring power.Second level screw rod 29 is meshed with second level helical gear 28; Second level helical gear 28 is connected by the end face rectangular teeth with little external gear 27 and is enclosed within on the fast pulley 26 together, big external gear 25 and little external gear 27 engagements, the output shaft of big external gear 25 is installed in the borehole jack of casing, wind-guiding drive plate 7 is installed on the output shaft of big external gear 25, as the output of whole power.
Described dynamic retarding case band declutch lever 32 middle parts are hinged on the hinge frame of casing, two travellers on its shift fork are stuck in the annular groove of second level screw rod 29, external end head, its other end that is connected lever 33 of band sheath wire rope 33 is fixed on the clutch for clutch control knob 34, the engagement of controlling second level screw rod 29 and first order helical gear 36 by rotation clutch for clutch control knob 34 with separate, to reach the purpose that control power transmits.
Claims (6)
1, a kind of rotary blade fan of main motor direct-drive inducer, comprise fan master motor (5), fan blade (2), inducer (4), fan body (3) and protective housing (1), it is characterized in that: described main motor (5) rear end cover is equipped with dynamic retarding tooth case (9), wind-guiding drive plate (7) is installed on the output shaft of dynamic retarding tooth case (9), and inducer (4) is installed on the wind-guiding drive plate (7).
2, rotary blade fan according to claim 1 is characterized in that dynamic retarding tooth case (9) is directly installed on main motor (5) rear end cover, and main motor (5) back outer shaft directly inserts in the dynamic retarding tooth case (9) and is connected with first order part; Dynamic retarding tooth case (9) is two-stage or the above slowing-down structure of two-stage; Between first order deceleration and second level reducing gear, be provided with power-off device and clutch for clutch control knob; The output shaft of dynamic retarding tooth case (9) and main rotor axis of electric are on same the axis.
3, rotary blade fan according to claim 2, it is characterized in that, described dynamic retarding tooth case (9) adopts the two-stage planetary gear structure, main motor (5) back outer shaft mills into flat type, in the half-moon-shaped hole of straight cutting first order symmetry eccentric (21), between the two-stage planetary reduction gear, be provided with power-off device, this device first order output disc (18) is the shoulder hole structure with the endoporus of second level symmetry eccentric (17), its aperture is the identical splined hole of diameter, and the small end of second level symmetry eccentric (17) inserts in bigger one section endoporus of first order output disc (18); One end is an external splines, the other end is the spline slide core (23) of band boss, insert in the splined hole of second level symmetry eccentric (17) and first order output disc (18) overcoat pressure spring (24) back, the top large end face that withstands on spline slide core (23) of band ear control slide bar (11), two ears of band ear control slide bar (11) are stuck in the wedge chute that unsteady pin wheel (13) and chock plug (10) constituted, and clutch for clutch control knob (8) is installed in the flat end of band ear control slide bar (11).
4, rotary blade fan according to claim 3 is characterized in that, described clutch for clutch control knob (8) is positioned at the middle of rotary blade fan inducer (4).
5, rotary blade fan according to claim 2, it is characterized in that, described dynamic retarding tooth case (9) adopts three grades of deceleration tooth casees, this deceleration tooth case first order and the second level are screw rod helical gear structure, the third level is an outer gearing involute tooth wheel construction, main motor (5) back outer shaft (35) is rolled onto screw rod as the first order screw rod that slows down, mesh with first order helical gear (36), the output shaft of dynamic retarding tooth case and main motor (5) rotor shaft are on the same axis, first order helical gear (36) is a triangular tooth with the junction plane of second level screw rod (29), one end band shape chute of second level screw rod (29), pressure spring (30) is housed, described first order helical gear (36) on the band end face, second level screw rod (29) and pressure spring (30) together are sleeved on the stationary axle (31); Band declutch lever (32) middle part is hinged on the hinge frame of casing, the shifting fork pin of one end is stuck in the annular groove of second level screw rod (29), a other end that ties up to band declutch lever (32) of band sheath wire rope (33), the other end of band sheath wire rope (33) ties up on the clutch for clutch control knob (34), and clutch for clutch control knob (34) is installed on the fan body (3).
6, rotary blade fan according to claim 1, it is characterized in that, described wind-guiding drive plate (7) is installed on the output shaft of dynamic retarding tooth case (9), the circular positioning ring of wind-guiding drive plate (7) is provided with three cantilever dogs, the inner cylindrical surface of inducer (4) wheel hub equidistantly has one group of groove, the positioning ring of wind-guiding drive plate (7) cooperates with the inner cylindrical surface of inducer (4), three cantilever dogs of wind-guiding drive plate (7) are stuck in inducer (4) the wheel hub groove, and inducer gland (6) is affixed with wind-guiding drive plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273645 CN2635951Y (en) | 2003-08-18 | 2003-08-18 | Fan with main motor direct driven air guiding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273645 CN2635951Y (en) | 2003-08-18 | 2003-08-18 | Fan with main motor direct driven air guiding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635951Y true CN2635951Y (en) | 2004-08-25 |
Family
ID=34301611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03273645 Expired - Fee Related CN2635951Y (en) | 2003-08-18 | 2003-08-18 | Fan with main motor direct driven air guiding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635951Y (en) |
-
2003
- 2003-08-18 CN CN 03273645 patent/CN2635951Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |