CN203702668U - Flexibly-connected blade shank for cooling tower fan - Google Patents
Flexibly-connected blade shank for cooling tower fan Download PDFInfo
- Publication number
- CN203702668U CN203702668U CN201320806045.9U CN201320806045U CN203702668U CN 203702668 U CN203702668 U CN 203702668U CN 201320806045 U CN201320806045 U CN 201320806045U CN 203702668 U CN203702668 U CN 203702668U
- Authority
- CN
- China
- Prior art keywords
- blade shank
- petiole
- blade
- supporting seat
- flexibly
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a flexibly-connected blade shank for a cooling tower fan. A blade shank is fixed to a blade, and is locked by using a nut; the blade shank is inserted into a supporting seat; communicated through holes are formed in the supporting seat and the blade shank; a pin shaft sleeve is arranged in the through hole of the blade shank; a pin shaft is used for rotationally connecting the blade shank to the supporting seat through the through hole in the supporting seat and the pin shaft sleeve; the supporting seat is fixed to a support plate; the support plate is fixed to a shaft sleeve of an output shaft of a speed reducer. By adopting the flexibly-connected blade shank, the phenomenon of damages to the blade due to stress concentration caused by rigid connection of a hoop and the blade shank is avoided, and the running safety, reliability and stability of fan blades are ensured. The flexibly-connected blade shank has the advantages of easiness in processing, short production period, high processing efficiency, light weight, high strength, high bearing capacity, high reliability, convenience in installation and maintenance and low cost.
Description
Technical field
The utility model relates to a kind of connection petiole of blower fan of cooling tower.
Background technique
Along with China's economic steady and stabilized growth, the industries such as iron and steel, coal, chemical industry obviously increase the demand of air separation plant, the large air separation plant market share is rising year by year, thereby bring the rapid growth of sky sub-item cooling blower market demand, mass market demand is indicating that empty sub-item has wide market prospects.In recent years, along with constantly improving and development and the needs that maximize of blower fan of cooling tower technology, production structure is simple, the blower fan of easy installation and removal, safe and reliable, low cost of manufacture, has become the problem that must consider and solve of blower fan manufacturer.
Petiole is as a vitals in blower fan of cooling tower, and its Main Function is by petiole, blade to be connected with wheel hub, thus guarantee fan blade can be continuously, steadily, running reliably.In petiole design in the past, as shown in Figure 1, petiole 1 adopts clip 3 to be connected with U bolt 4 forms with wheel hub 2, this Connecting format belongs to rigid connection, because blower fan is subject to aerodynamic impact in the middle of long time running, petiole 1 is produced to stress and concentrated, the shearing force that petiole 1 is subject to is greater than strength of materials performance, so easily cause petiole to fracture, affected the Security of blower fan.
Summary of the invention
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, provide a kind of stress that can effectively avoid clip and petiole to produce because of rigid connection to concentrate to cause the generation of the phenomenon that blade damages, guarantee the formula that the flexibly connects petiole of the blower fan of cooling tower of the on-stream Security of fan blade, reliability and stability.
For achieving the above object, technical solution of the present utility model is: a kind of formula that flexibly connects petiole of blower fan of cooling tower, and it comprises nut, petiole, bearing pin, pin sleeve, supporting base and support plate; Petiole is fixed on blade, and by nut check; Petiole is through in supporting base, on supporting base and petiole, have the through hole of intercommunication, in the through hole of petiole, pin sleeve is installed, bearing pin is rotatably connected to petiole on supporting base by the through hole on supporting base and pin sleeve, supporting base is fixed on support plate, and support plate is fixed on speed reducer output shaft axle sleeve.
The utility model is hinged on blade on the support plate that is fixed on speed reducer output shaft, it is for flexibly connecting formula structure, when blower fan does not turn round, blade tip becomes free hang, when blower fan running, blade is because of centrifugal action, blade is vertical with air duct straightway, and reach blower fan best running state, this makes petiole adjusting vane height automatically in blower fan operation process, well having eliminated stress petiole being produced because of aerodynamic force concentrates, the stress of effectively having avoided clip and petiole to produce because of rigid connection is concentrated the generation of the phenomenon that causes blade damage, guarantee the Security that fan blade is on-stream, reliability and stability.The utility model processing is simple, with short production cycle, work efficiency is high; It is lightweight, intensity is high, bearing capacity is large, reliability is high, convenient for installation and maintenance, with low cost.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks sectional view;
Fig. 2 is plan view of the present utility model;
Fig. 3 is the AA sectional view of Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment comprises nut 1, petiole 2, bearing pin 3, pin sleeve 6, supporting base 4 and support plate 5.Petiole 2 screw threads are fixed on blade 7, and are locked by nut 1.Petiole 2 is through in supporting base 4, on supporting base 4 and petiole 2, have the through hole of intercommunication, pin sleeve 6 is installed in the through hole of petiole 2, bearing pin 3 is rotatably connected to petiole 2 on supporting base 4 by the through hole on supporting base 4 and pin sleeve 6, supporting base 4 is fixed on support plate 5 by screw, and support plate 5 is fixed on speed reducer output shaft axle sleeve 8 by screw.
Above-described embodiment is only preferred and exemplary, and those skilled in the art can do equivalent technologies according to the spirit of this patent and improve, and these are all covered by the protection domain of this patent.
Claims (1)
1. the formula that a flexibly connects petiole for blower fan of cooling tower, is characterized in that: it comprises nut, petiole, bearing pin, pin sleeve, supporting base and support plate; Petiole is fixed on blade, and by nut check; Petiole is through in supporting base, on supporting base and petiole, have the through hole of intercommunication, in the through hole of petiole, pin sleeve is installed, bearing pin is rotatably connected to petiole on supporting base by the through hole on supporting base and pin sleeve, supporting base is fixed on support plate, and support plate is fixed on speed reducer output shaft axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806045.9U CN203702668U (en) | 2013-12-10 | 2013-12-10 | Flexibly-connected blade shank for cooling tower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806045.9U CN203702668U (en) | 2013-12-10 | 2013-12-10 | Flexibly-connected blade shank for cooling tower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702668U true CN203702668U (en) | 2014-07-09 |
Family
ID=51053119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806045.9U Expired - Lifetime CN203702668U (en) | 2013-12-10 | 2013-12-10 | Flexibly-connected blade shank for cooling tower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696287A (en) * | 2013-12-10 | 2015-06-10 | 惠阳航空螺旋桨有限责任公司 | Flexible connection type petiole of cooling tower fan |
-
2013
- 2013-12-10 CN CN201320806045.9U patent/CN203702668U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696287A (en) * | 2013-12-10 | 2015-06-10 | 惠阳航空螺旋桨有限责任公司 | Flexible connection type petiole of cooling tower fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |