CN101408218A - Rotating flexible shaft supporting tube with supporting vane having Y-shaped section - Google Patents
Rotating flexible shaft supporting tube with supporting vane having Y-shaped section Download PDFInfo
- Publication number
- CN101408218A CN101408218A CNA2008101949259A CN200810194925A CN101408218A CN 101408218 A CN101408218 A CN 101408218A CN A2008101949259 A CNA2008101949259 A CN A2008101949259A CN 200810194925 A CN200810194925 A CN 200810194925A CN 101408218 A CN101408218 A CN 101408218A
- Authority
- CN
- China
- Prior art keywords
- blade
- tube body
- support
- support blade
- flexible shaft
- 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.)
- Granted
Links
Images
Landscapes
- Harvester Elements (AREA)
Abstract
The invention relates to a rotating flexible shaft support tube. According to the technical proposal provided by the invention, the rotating flexible shaft support tube with a support blade provided with a Y-shaped cross-section comprises an inner tube body and three or more support blades which are integrally arranged on the outer wall surface of the inner tube body; the support blades extend on the outer wall surface of the inner tube body along the length direction of the inner tube body; the bottom section of the support blade is a blade root part; the upper end of the blade root part is connected with two blade tip parts with an arc cross section and the blade tip part presents the shape that the thickness is gradually decreased from the bottom end part to the top end part thereof; two blade tip parts which are positioned at the top end part of one blade root part are connected with the blade root part into a whole; and two blade tip parts which are simultaneously positioned at the top end part of one blade root part form a support blade with a Y-shaped cross-section together with the blade root part. When in use, the support tube not only can prevent the occurrence of two-way heel rotating phenomenon, reduce vibration, and ensure comfortable operation, but also can avoid the over-clamping of the inner tube body and the rotating flexible shaft, and greatly prolong the service life; the support tube can be replaced easily, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of rotary flexible shaft supporting tube with Y-shaped section support blade.
Background technique
All must support rotary flexible shaft with support tube in the mowing machine of equipment for plant protection, loosenning tiller, during use, support tube is inserted in the metal outer pipe.At present, general support tube mainly is made of the support blade that interior tube body and interior tube body outer wall fixedly install, and support blade is consistent with the radial direction of interior tube body, support blade top and bottom thickness homogeneous.During installation, in metal outer pipe, peg graft stable in order to guarantee support blade, distance is slightly larger than the internal diameter of metal outer pipe between support blade outer end to the interior tube body center of circle, the distortion when pegging graft of interior tube body in the support tube that installs like this, rotary flexible shaft is in interior tube body during high speed rotating, the heat that rotary flexible shaft friction interior tube body inwall produces heats up support blade, support blade after the intensification is because the principle of expanding with heat and contract with cold, support blade must outside extrusion metal outer tube wall, because the high strength of metal outer pipe, support blade can't be burst metal outer pipe and outwards be out of shape, so support blade only can inwardly push interior tube body, quickened the distortion of interior tube body, and the rotary flexible shaft that continues high speed rotating continues the friction interior tube body, make interior tube body be out of shape soon and rotary flexible shaft is stuck.If have the gap between support blade and the metal outer pipe inwall, can support blade and the stuck phenomenon of metal outer pipe, but support tube is easy and rotary flexible shaft generation transfer phenomenon, the outer end of the support blade metal outer pipe inwall that constantly rubs, produce vibration, reduce operation comfort, the pollution that produces a thundering noise is unfavorable for environmental protection requirement.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can two-wayly prevent transfer phenomenon, reduce to vibrate, make operation comfortable, can avoid the rotary flexible shaft supporting tube that interior tube body and rotary flexible shaft are stuck, greatly increase the service life, change simply, reduce cost again with Y-shaped section support blade.
According to technological scheme provided by the invention, described rotary flexible shaft supporting tube with Y-shaped section support blade, comprise interior tube body and the support blade that is wholely set in the interior tube body outer wall more than three or three, described support blade extends at the length direction of interior tube body outer wall along interior tube body, the end section of described support blade is a blade root portion, the upper end of blade root portion connects two leaf tips that section is curved, and leaf tip is thickness by its bottom to its tip portion and reduces shape gradually, two leaf tips that are in a slice blade root portion tip portion together are integrated with blade root portion and are connected, and make that two leaf tips and the blade root portion formation section that are in a slice blade root portion tip portion together are the support blade of Y shape.
Described support blade has three, four, five or six, and they are evenly distributed in the outer wall of interior tube body.The blade root portion of support blade and the outer wall of interior tube body intersects vertically or acute angle intersects.Described interior tube body and support blade are made into integration by nylon material.
When the present invention uses, both can two-wayly prevent transfer phenomenon, reduce vibration, and make operation comfortable, and can avoid interior tube body and rotary flexible shaft stuck again, greatly increase the service life, change simply, reduce cost.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: the rotary flexible shaft supporting tube with Y-shaped section support blade of the present invention mainly is made of interior tube body 1, support blade 2, the 2a of blade root portion and leaf tip 2b.
The present invention includes interior tube body 1 and the support blade 2 that is wholely set in interior tube body 1 outer wall more than three or three, described support blade 2 extends at the length direction of interior tube body 1 outer wall along interior tube body 1, the end section of described support blade 2 is the 2a of blade root portion, the upper end of the 2a of blade root portion connects two leaf tip 2b that section is curved, and leaf tip 2b is thickness by its bottom to its tip portion and reduces shape gradually, the two leaf tip 2b that are in a slice blade root 2a of portion tip portion together are integrated with the 2a of blade root portion and are connected, make that the two leaf tip 2b and the 2a of the blade root portion formation section that are in a slice blade root 2a of portion tip portion together are the support blade 2 of Y shape, promptly the 2a of blade root portion is back-to-back two " C " structure.
Described support blade 2 has three, four, five or six, and they are evenly distributed in the outer wall of interior tube body 1.The 2a of blade root portion of the support blade 2 and outer wall of interior tube body 1 intersects vertically or acute angle intersects.Described interior tube body 1 and support blade 2 are made into integration by nylon material.
It is consistent with the internal diameter of metal outer pipe that the present invention makes the external diameter of the circle that its support blade 2 constitutes, when the present invention inserts the metal outer pipe use, behind the rotary flexible shaft high speed rotating and interior tube body 1 inwall that rubs, interior tube body 1 temperature raises, and makes the temperature of support blade 2 also slowly raise.Because the effect of expanding with heat and contract with cold of support blade 2, and the Y-shaped section of support blade 2, and the leaf tip 2b in every support blade 2 is thickness by its bottom to its top and reduces shape gradually, can make the leaf tip 2b of support blade 2 have certain elasticity like this, the leaf tip 2b institute venting of the most of supported blade 2 of power that support blade 2 outwards expands, the power that support blade 2 is against the inwall of metal outer pipe promptly is kept to very little, because the high strength of metal outer pipe, support blade 2 can't be burst metal outer pipe and outwards be out of shape, so support blade 2 is against the power of the inwall of metal outer pipe and is converted into the reaction force of metal outer pipe inwall to support blade 2, the reaction force that support blade 2 acts on interior tube body 1 also is kept to very little, has avoided the distortion situation of interior tube body 1.
If the outer wall of the 2a of blade root portion of support blade 2 and interior tube body 1 is acute angle and intersects, this reaction force is decomposed into power and the tangent power of interior tube body 1 outer wall that vertically acts on interior tube body 1, so it is little more a lot of than reaction force again vertically to act on the power of interior tube body 1 as can be seen, the power tangent with interior tube body 1 outer wall does not exert an influence, so alleviated the distortion situation of interior tube body 1 greatly, but interior tube body and rotary flexible shaft are stuck, greatly increase the service life, change simply, reduce cost.
If high-speed friction interior tube body 1 inwall of rotary flexible shaft, when fricative transfer power interior tube body 1 makes support blade 2 that the trend of transfer be arranged, at this moment, the leaf tip 2b outer end of arranging in the same way with sense of rotation of support blade 2 is against the metal outer pipe inwall, the leaf tip 2b radian of arcuation reduces, make leaf tip 2b tightly fix on the metal outer pipe inwall, form the reaction force of cancelling out each other with transfer power, increasing along with the trend of transfer, the leaf tip 2b radian of arcuation can be more and more littler, it is big more to be that rotary flexible shaft acts on the transfer power of interior tube body 1, and leaf tip 2b radian can be more and more littler, and this moment, reaction force also increased, all the time be consistent with transfer power size, so the present invention can two-wayly avoid transfer phenomenon, reduce vibration, make operation comfortable.
Claims (4)
1, a kind of rotary flexible shaft supporting tube with Y-shaped section support blade, comprise interior tube body (1) and the support blade (2) that is wholely set in interior tube body (1) outer wall more than three or three, described support blade (2) extends at the length direction of interior tube body (1) outer wall along interior tube body (1), it is characterized in that: the end section of described support blade (2) is blade root portion (2a), the upper end of blade root portion (2a) connects two leaf tips (2b) that section is curved, and leaf tip (2b) is thickness by its bottom to its tip portion and reduces shape gradually, two leaf tips (2b) that are in a slice blade root portion (2a) tip portion together are integrated with blade root portion (2a) and are connected, and making two leaf tips (2b) that are in a slice blade root portion (2a) tip portion together form section with blade root portion (2a) is the support blade (2) of Y shape.
2, the rotary flexible shaft supporting tube with Y-shaped section support blade as claimed in claim 1 is characterized in that: described support blade (2) has three, four, five or six, and they are evenly distributed in the outer wall of interior tube body (1).
3, the rotary flexible shaft supporting tube with Y-shaped section support blade as claimed in claim 1 is characterized in that: the blade root portion (2a) of support blade (2) intersects vertically with the outer wall of interior tube body (1) or acute angle intersects.
4, the rotary flexible shaft supporting tube with Y-shaped section support blade as claimed in claim 1 is characterized in that: described interior tube body (1) is made into integration by nylon material with support blade (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101949259A CN101408218B (en) | 2008-10-27 | 2008-10-27 | Rotating flexible shaft supporting tube with supporting vane having Y-shaped section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101949259A CN101408218B (en) | 2008-10-27 | 2008-10-27 | Rotating flexible shaft supporting tube with supporting vane having Y-shaped section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101408218A true CN101408218A (en) | 2009-04-15 |
| CN101408218B CN101408218B (en) | 2010-08-25 |
Family
ID=40571372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101949259A Expired - Fee Related CN101408218B (en) | 2008-10-27 | 2008-10-27 | Rotating flexible shaft supporting tube with supporting vane having Y-shaped section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101408218B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865200A (en) * | 2010-06-12 | 2010-10-20 | 宋健 | Rotating flexible shaft supporting tube formed by asymmetrically combining single-sheet type supporting blades |
| CN101793283B (en) * | 2009-10-30 | 2011-09-07 | 宋健 | Rotary flexible shaft supporting tube with support blades having triangular-arc sections |
-
2008
- 2008-10-27 CN CN2008101949259A patent/CN101408218B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793283B (en) * | 2009-10-30 | 2011-09-07 | 宋健 | Rotary flexible shaft supporting tube with support blades having triangular-arc sections |
| CN101865200A (en) * | 2010-06-12 | 2010-10-20 | 宋健 | Rotating flexible shaft supporting tube formed by asymmetrically combining single-sheet type supporting blades |
| CN101865200B (en) * | 2010-06-12 | 2011-11-23 | 宋健 | Rotating flexible shaft supporting tube formed by asymmetrically combining single-sheet type supporting blades |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101408218B (en) | 2010-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9239040B2 (en) | Root end assembly configuration for a wind turbine rotor blade and associated forming methods | |
| EP2174004A4 (en) | A wind turbine having an airflow deflector | |
| EP2990643B1 (en) | Rotor blade of a wind turbine | |
| CN104541051B (en) | The system and method being accurately aligned are provided when installing wind turbine blade | |
| CN101403409B (en) | Rotating flexible axle support pipe having support blade with S-shaped section | |
| CN101408218B (en) | Rotating flexible shaft supporting tube with supporting vane having Y-shaped section | |
| EP3112669B1 (en) | Pitch assembly for a wind turbine rotor blade | |
| CN201281075Y (en) | Rotating flexible shaft supporting tube of support blade with Y-shaped section | |
| CN201281074Y (en) | Rotating flexible shaft supporting tube of support blade with S-shaped section | |
| CN101100973B (en) | Small wing device of perpendicular shaft wind-driven generator | |
| CN201277245Y (en) | Rotating flexible axle supporting pipe | |
| CN101368591A (en) | Rotating flexible axle supporting pipe | |
| CN201209592Y (en) | Large-sized hollow low noise axial fan blade | |
| US7854595B2 (en) | Wind turbine blade tip shapes | |
| CN114087028B (en) | Be suitable for adjustable stator inner ring bleed air structure | |
| CN101699083B (en) | Rotating flexible shaft supporting tube with supporting vanes with sections in double-node elliptical ring shapes | |
| CN101532536A (en) | Thrust gas bearing of hydrostatic directional radiation groove | |
| CN205841245U (en) | Centrifugal compressor | |
| CN210343620U (en) | Shafting structure of direct-drive wind driven generator | |
| CN204646781U (en) | A kind of aft-fan of motor | |
| CN101865200B (en) | Rotating flexible shaft supporting tube formed by asymmetrically combining single-sheet type supporting blades | |
| CN204646780U (en) | A kind of front fan of motor | |
| CN201391550Y (en) | Gas bearing | |
| US9664174B2 (en) | Aerodynamic root adapters for wind turbine rotor blades | |
| CN201582200U (en) | Axial flow fan hub clamping hoop structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100825 Termination date: 20141027 |
|
| EXPY | Termination of patent right or utility model |