CN202520648U - Axial flow fan with synchronous-regulation blade - Google Patents
Axial flow fan with synchronous-regulation blade Download PDFInfo
- Publication number
- CN202520648U CN202520648U CN2012201777273U CN201220177727U CN202520648U CN 202520648 U CN202520648 U CN 202520648U CN 2012201777273 U CN2012201777273 U CN 2012201777273U CN 201220177727 U CN201220177727 U CN 201220177727U CN 202520648 U CN202520648 U CN 202520648U
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- petiole
- sleeve
- worm
- bearing
- groove
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Abstract
The utility model particularly relates to an axial flow fan with a synchronous-regulation blade, solving the problems that by adopting the current axial flow fan, when a blade angle is regulated, the time and the labor are wasted, and the impeller unbalance is easily caused to influence the service life of an impeller. A pushing disc is sheathed on a shaft sleeve, a groove is formed in the outer cylindrical surface of the pushing disc, and a crank is arranged in the groove. The right side of the pushing disc is provided with a worm wheel which is in threaded connection with the pushing disc, and the outer sides of the left and right end surfaces of the worm wheel are provided with a support seat and a cover plate. A worm support is fixedly arranged on the support seat, and a worm penetrates in the worm support. The other side of the worm is provided with a balance weight lever, and one end of the worm is fixedly provided with a drive lever. The outer end of the drive lever is positioned in a support sleeve, and a card groove is formed in the step plane of the support sleeve. A pin shaft penetrates in a sliding groove hole of the drive lever, a sealing ring is sheathed on the drive lever, and a spring is arranged between the sealing ring and the pin shaft. According to the axial flow fan, the regulation efficiency of the blade angle is increased, and meanwhile the consistency of the angle is ensured. The axial flow fan has the advantages of simple structure, low cost, easiness in installation and convenience in maintenance.
Description
Technical field
The utility model relates to propeller fan, is specially a kind of blade synchronization and regulates propeller fan.
Background technique
Propeller fan has the title of colliery throat equipment as main fan for mines, and its life cycle is general more than 10 years; Mine resistance parameter, mine air-required volume possibly change at any time in the using process, and this just needs to regulate the main fan blade angle and satisfies the mine needs.
At present, main fan for mines blade adjustments mode mainly adopts to shut down tears machine regulative mode piecewise open, and adjustment process is following: from impeller section blower fan is taken apart earlier; After with special spanner locking nut, tapered cup nut being unclamped successively then; Rotor blade is tightened tapered cup nut and locking nut successively to the needs angle, because of coal master's ventilating fan running environment condition relatively poor; A lot of situation inferior pyramidal nuts are integral with the blade corrosion usually, cause adjusting very difficult; And adopt the mode of regulating piecewise, be difficult to guarantee that the established angle of every blade adjustments is the same, therefore can influence the impeller balance, cause blade angle to regulate after, the body vibration increasing, very unfavorable to bearing of motor, influence working life.
Summary of the invention
The utility model is wasted time and energy when solving existing propeller fan adjusting vane established angle and is prone to cause the unbalance problem that influence working life of impeller, and a kind of blade synchronization adjusting propeller fan is provided.
The utility model is to adopt following technological scheme to realize: blade synchronization is regulated propeller fan, comprises wheel hub and the axle sleeve coaxial with it, is installed with some petioles that radially are provided with in the wheel hub; The petiole outer end all is fixed with blade, is with on the axle sleeve to horizontally slip on it and the push-plate that stretches out at right side middle part, and the external cylindrical surface of push-plate has circumferential groove; Be placed with the hinged crank of the other end and petiole in the groove, the push-plate right side is provided with the worm gear that is enclosed within on the axle sleeve, and the external cylindrical surface screw-thread fit at place is stretched out at worm gear endoporus and middle part, push-plate right side; The end face outside, the worm gear left and right sides is provided with and fixing supporting base and the cover plate of axle sleeve; Be fixed with worm bearing on the supporting base, be installed with in the worm bearing and the worm gear engaged worm, the opposite side in the relative worm gear of worm screw axle center is provided with the weight linear meter that is connected with supporting base; And worm screw one end is fixed with driveshaft; The outer end of driveshaft is positioned at and is fixed on the inboard supporting sleeve of wheel hub, and the supporting sleeve inboard is the step structure of lower diameter greater than upper diameter, and the supporting sleeve ladder surface has draw-in groove; Vertically have slip slotted hole on the driveshaft; Be installed with the bearing pin that is stuck in the draw-in groove in the slip slotted hole, and be with the seal ring that contacts with supporting sleeve lower end inwall on the driveshaft, be provided with the spring that is enclosed within on the driveshaft between seal ring and the bearing pin.
When propeller fan stops operating, open the viewing window on the impeller urceolus, through special tool bearing pin is promoted certain distance downwards after; The rotation driveshaft drives worm screw and rotates, and worm screw drives the worm gear rotation; Under the position-limiting action of supporting base and cover plate, rotatablely moving of worm gear is delivered to push-plate does straight reciprocating motion then, and then the crank that drives in the push-plate groove rotates around the axis of blade petiole synchronously along the axle sleeve axial direction; Guarantee that the angle of regulating is in full accord; After blade angle is adjusted to the right place, under the elastic force effect of spring, bearing pin is back into automatically the draw-in groove position of supporting sleeve; Again reach the purpose of locking-blade; Seal ring prevents that corrosive gas and water vapour from getting into impeller, improves the antiseptic property of impeller inner components, wastes time and energy when having overcome existing propeller fan adjusting vane established angle and is prone to cause the unbalance problem that influences working life of impeller.
The petiole outer end is positioned at and is fixed on the inboard petiole sleeve of wheel hub; The petiole sleeve middle inside is provided with protruding ring; And be provided with in the petiole sleeve and be enclosed within on the petiole and be positioned at the protruding ring up and down tapered roller bearing and the thrust-bearing of both sides; The upper-end surface of tapered roller bearing contacts with the ladder surface on petiole top; And be provided with seal ring between petiole upper portion side wall and the petiole sleeve, be screwed with locking nut on the petiole of petiole sleeve below, be provided with between locking nut and the thrust-bearing and contact and be enclosed within petiolar distance with both and overlap.
Thrust-bearing bears the centrifugal force of blade in the impeller rotary course; Tapered roller bearing overcomes that blade receives radial force and the moment of flexure that air pressure causes petiole in the fan operation; Locking nut is pressed on petiole on the petiole sleeve through thrust-bearing and tapered roller bearing; Guaranteed that petiole can only rotate freely around axis, and can not produce axial displacement that the O RunddichtringO has completely cut off gas entering petiole sleeve bearing part in the blower fan inner flow passage; Improve the inner sealability of impeller, prolong the working life of impeller.
The utility model reasonable in design is reliable, has realized the requirement of continuous stepless synchronization regulation blade angle through the big speed ratio of worm-and-wheel gear; Play extraordinary anti-loosing effect when having deceleration, labour-saving advantage through being threaded between worm gear and the push-plate; The space circular movement is done in the crank lower end in groove, well retrain when crank can move in a circle along the setting scheme not interfere with push-plate; Improve the conformity that has guaranteed established angle when blade angle is regulated efficient, adjustment back impeller can be not unbalance, vibrate lessly, prolongs working life of motor, have simple in structure, cost is low, be prone to installation and advantage easy to maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the local schematic side view of Fig. 1;
Fig. 3 is the enlarged diagram of A among Fig. 1.
Among the figure: 1-wheel hub, 2-axle sleeve, 3-petiole, 4-blade, 5-push-plate, 6-groove, 7-crank; The 8-worm gear, 9-supporting base, 10-cover plate, 11-worm bearing, 12-worm screw, 13-weight linear meter, 14-driveshaft; The 15-supporting sleeve, 16-slip slotted hole, 17-bearing pin, 18-seal ring, 19-spring, 20-petiole sleeve, 21-protruding ring; 22-tapered roller bearing, 23-thrust-bearing, 24-O RunddichtringO, 25-locking nut, 26-be apart from cover, 27-support ring, 28-guide sleeve.
Embodiment
Blade synchronization is regulated propeller fan, comprises wheel hub 1 and the axle sleeve 2 coaxial with it, is installed with some petioles 3 that radially are provided with in the wheel hub 1; Petiole 3 outer ends all are fixed with blade 4, are with on the axle sleeve 2 to horizontally slip on it and the push-plate 5 that stretches out at right side middle part, and the external cylindrical surface of push-plate 5 has circumferential groove 6; Be placed with the hinged crank 7 of the other end and petiole 3 in the groove 6, push-plate 5 right sides are provided with the worm gear 8 that is enclosed within on the axle sleeve 2, and the external cylindrical surface screw-thread fit at place is stretched out at worm gear 8 endoporus and middle part, push-plate 5 right sides; The end face outside, worm gear 8 left and right sides is provided with the supporting base of fixing with axle sleeve 29 and cover plate 10; Be fixed with worm bearing 11 on the supporting base 9, be installed with in the worm bearing 11 and worm gear 8 engaged worm 12, the opposite side in worm screw 12 relative worm gears 8 axle center is provided with the weight linear meter 13 that is connected with supporting base 9; And worm screw 12 1 ends are fixed with driveshaft 14; The outer end of driveshaft 14 is positioned at the supporting sleeve 15 that is fixed on wheel hub 1 inboard, and supporting sleeve 15 inboards are the step structure of lower diameter greater than upper diameter, and supporting sleeve 15 ladder surfaces have draw-in groove; Vertically have slip slotted hole 16 on the driveshaft 14; Be installed with the bearing pin 17 that is stuck in the draw-in groove in the slip slotted hole 16, and be with the seal ring 18 that contacts with supporting sleeve 15 lower end inwalls on the driveshaft 17, be provided with the spring 19 that is enclosed within on the driveshaft 14 between seal ring 18 and the bearing pin 17.
In the practical implementation process, supporting base 9 and cover plate 10 fuse through fixing bolt, are fixed together through connecting bolt and motor shaft sleeve 2, thereby realize worm gear 8 when moving, the purpose that can only rotate; Be fixed with the key of axial setting on the axle sleeve 2, axially have the guiding groove corresponding with key position on the push-plate 5, the screw thread of engagement has guaranteed that worm gear 8 drives push-plate 5 when rotated and does linear reciprocating motion along the axial direction of axle sleeve 2 between worm gear 8 and the push-plate 5.
Claims (3)
1. a blade synchronization is regulated propeller fan; Comprise wheel hub (1) and the axle sleeve (2) coaxial with it; Be installed with some petioles (3) that radially are provided with in the wheel hub (1), petiole (3) outer end all is fixed with blade (4), it is characterized in that: be with on the axle sleeve (2) and horizontally slip on it and the push-plate (5) that stretches out at the middle part, right side; The external cylindrical surface of push-plate (5) has circumferential groove (6); Be placed with the hinged crank (7) of the other end and petiole (3) in the groove (6), push-plate (5) right side is provided with the worm gear (8) that is enclosed within on the axle sleeve (2), and the external cylindrical surface screw-thread fit at place is stretched out at worm gear (8) endoporus and middle part, push-plate (5) right side; The end face outside, worm gear (8) left and right sides is provided with and fixing supporting base (9) and the cover plate (10) of axle sleeve (2); Be fixed with worm bearing (11) on the supporting base (9), be installed with in the worm bearing (11) and worm gear (8) engaged worm (12), worm screw (12) opposite side in worm gear (8) axle center relatively is provided with the weight linear meter (13) that is connected with supporting base (9); And worm screw (12) one ends are fixed with driveshaft (14); The outer end of driveshaft (14) is positioned at and is fixed on the inboard supporting sleeve (15) of wheel hub (1), and supporting sleeve (15) inboard is the step structure of lower diameter greater than upper diameter, and supporting sleeve (15) ladder surface has draw-in groove; Vertically have slip slotted hole (16) on the driveshaft (14); Be installed with the bearing pin (17) that is stuck in the draw-in groove in the slip slotted hole (16), and be with the seal ring (18) that contacts with supporting sleeve (15) lower end inwall on the driveshaft (17), be provided with the spring (19) that is enclosed within on the driveshaft (14) between seal ring (18) and the bearing pin (17).
2. blade synchronization according to claim 1 is regulated propeller fan; It is characterized in that: petiole (3) outer end is positioned at and is fixed on the inboard petiole sleeve (20) of wheel hub (1); Petiole sleeve (20) middle inside is provided with protruding ring (21); And be provided with in the petiole sleeve (20) and be enclosed within petiole (3) and go up and be positioned at protruding ring (21) tapered roller bearing of both sides (22) and thrust-bearing (23) up and down; The upper-end surface of tapered roller bearing (22) contacts with the ladder surface on petiole (3) top; And be provided with O RunddichtringO (24) between petiole (3) upper portion side wall and the petiole sleeve (20), be screwed with locking nut (25) on the petiole (3) of petiole sleeve (20) below, be provided with between locking nut (25) and the thrust-bearing (23) contact and is enclosed within both on the petiole (3) apart from overlapping (26).
3. blade synchronization according to claim 1 and 2 is regulated propeller fan; It is characterized in that: be installed with on the petiole (3) with wheel hub (1) coaxial and with the fixing support ring (27) of wheel hub (1), be fixed with the guide sleeve (28) that is enclosed within on the petiole (3) on the support ring (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201777273U CN202520648U (en) | 2012-04-25 | 2012-04-25 | Axial flow fan with synchronous-regulation blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201777273U CN202520648U (en) | 2012-04-25 | 2012-04-25 | Axial flow fan with synchronous-regulation blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520648U true CN202520648U (en) | 2012-11-07 |
Family
ID=47103600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201777273U Withdrawn - After Issue CN202520648U (en) | 2012-04-25 | 2012-04-25 | Axial flow fan with synchronous-regulation blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520648U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606528A (en) * | 2012-04-25 | 2012-07-25 | 山西渝煤科安运风机有限公司 | Axial flow ventilator capable of synchronously adjusting blades |
| CN103486080A (en) * | 2013-10-12 | 2014-01-01 | 山西渝煤科安运风机有限公司 | Adjusting device outside aluminum blade body of mine fan |
| CN103727062A (en) * | 2013-12-13 | 2014-04-16 | 湖北省风机厂有限公司 | Device for adjusting moving blades of axial flow fan |
-
2012
- 2012-04-25 CN CN2012201777273U patent/CN202520648U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606528A (en) * | 2012-04-25 | 2012-07-25 | 山西渝煤科安运风机有限公司 | Axial flow ventilator capable of synchronously adjusting blades |
| CN103486080A (en) * | 2013-10-12 | 2014-01-01 | 山西渝煤科安运风机有限公司 | Adjusting device outside aluminum blade body of mine fan |
| CN103727062A (en) * | 2013-12-13 | 2014-04-16 | 湖北省风机厂有限公司 | Device for adjusting moving blades of axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121107 Effective date of abandoning: 20140409 |
|
| RGAV | Abandon patent right to avoid regrant |