CN205423317U - A device for axial flow pump impeller blade angle adjusts - Google Patents
A device for axial flow pump impeller blade angle adjusts Download PDFInfo
- Publication number
- CN205423317U CN205423317U CN201521001979.0U CN201521001979U CN205423317U CN 205423317 U CN205423317 U CN 205423317U CN 201521001979 U CN201521001979 U CN 201521001979U CN 205423317 U CN205423317 U CN 205423317U
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- CN
- China
- Prior art keywords
- bevel gear
- spiral bevel
- flow pump
- driving link
- axial flow
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a device for axial flow pump impeller blade angle adjusts, an in particular to automatically regulated axial flow pump impeller blade angle's adjusting device mainly includes wheel hub, support, first curve tooth bevel gear, second curve tooth bevel gear, driving part, key, spring, pump shaft, control lever, application of force stick, rooting -in of blades base, stirs the board, swing board, tumbler disc. Because axial flow pump impeller keeps rotary motion at the during operation, so will adjust the impeller blade angle in the axial -flow pump working process and have certain degree of difficulty. The utility model discloses a realize adjusting the axial flow pump impeller blade angle in the work through simple mechanical parts for impeller blade rotates at certain angle within range, the blade circumstances of collision mutually can not appear, and the security is than higher, and easy operation need only just can accomplish the regulation to blade angle by the push lever in addition.
Description
Technical field
This utility model relates to a kind of device for axial flow pump impeller vane angular adjustment, particularly to a kind of governor motion being automatically adjusted axial flow pump impeller vane angle.
Background technology
Axial-flow pump is a kind of common pump series products, suffers from being widely applied at aspects such as field irrigation, municipal administration plumbing, water diversion project, power plant cycle Hydraulic Projects, in recent years, have also been obtained application in terms of nuclear power, irrigation and drainage propelling.Although the efficiency of axial-flow pump can be up to about 85, but, when operating point off-design operating point, efficiency declines the most quickly, and cavitation may be resulted in, reason be off-design behaviour point blade shape and flowing to agree with degree inadequate, if be adjusted blade angle according to flow value, the effect making blade and fluid is more reasonable, improves the efficiency of axial-flow pump.
Gyration operationally it is to maintain, so to be adjusted there is certain difficulty to impeller blade angle in axial-flow pump work process due to axial-flow pump impeller.
This utility model patent realizes being adjusted the axial flow pump impeller vane angle in work by simple mechanical part.
Utility model purpose
This utility model patent realizes automatically adjusting the axial flow pump impeller vane angle in work by simple mechanical part.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple mechanical mechanism and is adjusted the axial flow pump impeller vane angle in work.
In order to solve above-mentioned technical problem, the device for axial flow pump impeller vane angular adjustment that this utility model provides, mainly includes pump shaft, controls bar, force rod, driving link, key, spring, the first spiral bevel gear, the second spiral bevel gear, support, rotation disk, oscillating deck, swinging plate, blade mounting seat.On pump shaft is axial, the second spiral bevel gear, driving link, spring housing are on pump shaft；At wheel hub radially, the first spiral bevel gear, rotation disk, oscillating deck, swinging plate and blade mounting seat are sequentially connected with.Second spiral bevel gear and the engagement of the first spiral bevel gear connect.
Two ends are fixed with the shaft shoulder, driving link and are connected by described spring respectively, and when driving link and the second spiral bevel gear contact, the state of spring is necessary for stretching, and this is the standard selecting spring.
Described driving link is connected by key and pump shaft, and the design of key should be longer, and driving link need keep connecting by key and pump shaft in round sliding process all the time.The driving link face of cylinder has through hole, in order to force rod can enter inside pump shaft through through hole.
nullDescribed force rod is connected by screw thread and control rod after entering pump shaft through driving link through hole，Control rod moves axially and driving link can be promoted to move axially，Under normality, driving link and the second spiral bevel gear are to separate，When impeller blade angle need be regulated，Push lever makes driving link and the contact laminating of the second spiral bevel gear，The driving link that rotates and do not rotate and there is the biggest frictional force between the second spiral bevel gear，This frictional force drives second spiral bevel gear starts to rotate，And then promote the first spiral bevel gear to drive rotation disk to rotate together，Rotate the cylindrical projection on disk and drive oscillating deck reciprocally swinging，Cylindrical projection on oscillating deck drives swinging plate reciprocally swinging together，Swinging plate passes blade mounting seat，Base under the effect of swinging plate in the range of certain angle reciprocally swinging，Achieve the angular adjustment of blade.Stopping the operation to control rod after completing regulation, driving link departs from the second spiral bevel gear under the pulling force effect of spring keeps in the center, and the first spiral bevel gear stops operating, and blade stops swinging.
Owing to blade is to rotate in certain angular range, as long as arranging proper, the situation that blade collides with each other would not occur, safety is higher, and simple to operate, just need only can complete the regulation to blade angle by push lever.This device is achieved by simple mechanical part and automatically adjusts the axial flow pump impeller vane angle in work.
Accompanying drawing explanation
With detailed description of the invention, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is this utility model structural representation；
Fig. 2 is to rotate disk, oscillating deck, swinging plate and the top view of blade mounting seat.
In figure: 1. wheel hub, 2. support, 3. the second spiral bevel gear, 4. driving link, 5. key, 6. spring, 7. pump shaft, 8. control bar, 9. force rod, 10. blade mounting seat, 11. swinging plates, 12. oscillating decks, 13. rotation disk, 14. first spiral bevel gears.
Detailed description of the invention
Seeing Fig. 1 and Fig. 2, a kind of device for axial flow pump impeller vane angular adjustment is mainly made up of 1. wheel hubs, 2. support, 3. the second spiral bevel gear, 4. driving link, 5. key, 6. spring, 7. pump shaft, 8. control bar, 9. force rod, 10. blade mounting seat, 11. swinging plates, 12. oscillating decks, 13. rotation disks, 14. first spiral bevel gears.In the axial direction of pump shaft 7, second spiral bevel gear 3, driving link 4, spring 6 are enclosed within pump shaft, at wheel hub 1 radially, first spiral bevel gear 14, rotation disk 13, oscillating deck 12, swinging plate 11 and blade mounting seat 10 are sequentially connected with, and the second spiral bevel gear 3 and the engagement of the first spiral bevel gear 14 connect.
Together with the two ends of spring 6 are permanently connected with the shaft shoulder, driving link 4 respectively.Having through hole on driving link circumference, force rod 9 is threaded through screw thread from through hole and control bar 8 connects.
Driving link 4 and pump shaft 7 key 5 connect, key 5 must have enough length guarantee driving links 4 in reciprocating Chinese style with key 5 good contact.
When the adjustment of axial flow pump impeller vane angle need be carried out, push lever 8 moves axially, driving link 4 moves to the second spiral bevel gear 3 and finally fits together under the effect of force rod 8, before laminating, the second spiral bevel gear 3 does not rotate, the rotation friction that after laminating, driving link 4 brings drives the second spiral bevel gear 3 to start to rotate, and then drive rotation disk 13 to rotate, cylindrical projection on disk drives oscillating deck 12 reciprocally swinging, cylindrical projection on oscillating deck 12 drives swinging plate 11 reciprocally swinging, swinging plate 11 makes its reciprocally swinging in certain angular range therewith through blade mounting seat 10, axial flow pump impeller vane is reciprocally swinging regulation blade angle under the drive of base.Blade angle adjusts after terminating and stops the effect controlling bar 8, and driving link 4 departs from the second spiral bevel gear 3 under the pulling force effect of spring 6 and returns to initial position, and the second spiral bevel gear 3 stops operating, and blade angle stops change.
This regulative mode simple in construction, easy to operate, and can ensure that blade rotates the situation not havinging mutually collision in the angular range of safety, this device is achieved by simple mechanical part and automatically adjusts the axial flow pump impeller vane angle in work.
Claims (5)
- null1. the device for axial flow pump impeller vane angular adjustment，It is characterized in that，Mainly include pump shaft (7)、Control bar (8)、Force rod (9)、Driving link (4)、Key (5)、Spring (6)、Second spiral bevel gear (3)、First spiral bevel gear (14)、Support (2)、Rotate disk (13)、Oscillating deck (12)、Swinging plate (11)、Blade mounting seat (10)，Wherein，On pump shaft (7) is axial，Second spiral bevel gear (3)、Driving link (4) and spring (6) are enclosed within pump shaft (7)，At wheel hub (1) radially，First spiral bevel gear (14)、Rotate disk (13)、Oscillating deck (12)、Swinging plate (11) and blade mounting seat (10) are sequentially connected，Wherein，Second spiral bevel gear (3) and the first spiral bevel gear (14) engagement connect.
- Device for axial flow pump impeller vane angular adjustment the most according to claim 1, it is characterized in that: the two ends of spring (6) link together will not be mutually disengaged with driving link (4) and the shaft shoulder respectively, the selection of spring (6) should be ensured that can produce enough pulling force to driving link (4) when driving link (4) contacts with the second spiral bevel gear (3).
- Device for axial flow pump impeller vane angular adjustment the most according to claim 1, it is characterized in that: described driving link (4) key (5) and pump shaft (7) connect, key (5) wants long enough, it is ensured that driving link (4) can departing from, contact, depart from during the second spiral bevel gear (3) all the time by key (5) and pump shaft (7) connection again.
- Device for axial flow pump impeller vane angular adjustment the most according to claim 1, it is characterized in that: on described driving link (4), open hole, it is internal that force rod (9) enters pump shaft (7) through through hole, and controls bar (8) with threaded.
- nullDevice for axial flow pump impeller vane angular adjustment the most according to claim 1，It is characterized in that，Push lever (8) is so that driving link (4) and the second spiral bevel gear (3) are fitted，The second spiral bevel gear (3) frictional drive not rotated before laminating is made it rotate by the driving link (4) rotated，And then drive the first spiral bevel gear (14)、Rotate disk (13)、Oscillating deck (12)、Swinging plate (11) and blade mounting seat (10) are started working，Axial flow pump impeller vane is made to swing the regulation carrying out angle in certain angular range，Adjust blade angle to stop the effect controlling bar (8) after desired value，Driving link (4) departs from the second spiral bevel gear (3) back side under the pulling force effect of spring (6) and keeps in the center，Adjustment of blade angle terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521001979.0U CN205423317U (en) | 2015-12-07 | 2015-12-07 | A device for axial flow pump impeller blade angle adjusts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521001979.0U CN205423317U (en) | 2015-12-07 | 2015-12-07 | A device for axial flow pump impeller blade angle adjusts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423317U true CN205423317U (en) | 2016-08-03 |
Family
ID=56515079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521001979.0U Expired - Fee Related CN205423317U (en) | 2015-12-07 | 2015-12-07 | A device for axial flow pump impeller blade angle adjusts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374908A (en) * | 2019-07-18 | 2019-10-25 | 浙江沈力防爆机电有限公司 | A kind of adjustable explosion-proof fan of fan blade angles |
| CN112412875A (en) * | 2020-12-08 | 2021-02-26 | 杭州贝丰科技有限公司 | Axial fan with blade edge folding structure |
-
2015
- 2015-12-07 CN CN201521001979.0U patent/CN205423317U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374908A (en) * | 2019-07-18 | 2019-10-25 | 浙江沈力防爆机电有限公司 | A kind of adjustable explosion-proof fan of fan blade angles |
| CN110374908B (en) * | 2019-07-18 | 2020-11-20 | 浙江沈力防爆机电有限公司 | Fan blade angle-adjustable explosion-proof fan |
| CN112412875A (en) * | 2020-12-08 | 2021-02-26 | 杭州贝丰科技有限公司 | Axial fan with blade edge folding structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20171207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |