CN201281074Y - Rotating flexible shaft supporting tube of support blade with S-shaped section - Google Patents
Rotating flexible shaft supporting tube of support blade with S-shaped section Download PDFInfo
- Publication number
- CN201281074Y CN201281074Y CNU2008201865583U CN200820186558U CN201281074Y CN 201281074 Y CN201281074 Y CN 201281074Y CN U2008201865583 U CNU2008201865583 U CN U2008201865583U CN 200820186558 U CN200820186558 U CN 200820186558U CN 201281074 Y CN201281074 Y CN 201281074Y
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- China
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- blade
- support blade
- tube body
- support
- flexible shaft
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- Expired - Lifetime
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Abstract
The utility model relates to a supporting pipe of a rotary flexible shaft. According to the technical scheme provided by the supporting pipe of the rotary flexible shaft, the supporting pipe provided with support blades with S-shaped sections comprises an inner pipe body and three or more support blades which are arranged on the outer wall surface of the inner pipe body in an integrated manner; the support blades are extended along the length of the inner pipe body on the outer wall surface of the inner pipe body, the section of the support blade is S-shaped, the shape of the support blade is like that the thickness of the support blade is gradually reduced from a blade root part to a blade tip part, and the blade root part of the support blade and the outer wall of the inner pipe body are intersected with an acute angle. When in use, the supporting pipe not only can prevent rotating-following, reduce vibration and lead the operation to be comfortable, but also can avoid the fixed clamping of the inner pipe body with the rotary flexible shaft, greatly prolong the service life, lead the replacement to be simple and reduce the cost.
Description
Technical field
The utility model relates to a kind of rotary flexible shaft supporting tube with S-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 purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of and 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 S-shaped section support blade.
The technological scheme that provides according to the utility model, described rotary flexible shaft supporting tube with S-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 S-shaped section of described support blade, and support blade is thickness by its blade root portion to its leaf tip and reduces shape gradually, and the blade root portion of support blade and interior tube body outer wall are acute angle and intersect.
The blade tip of all support blades is and counterclockwise rotates or be the clockwise direction rotation.Described support blade is three, four, five or six, and they are evenly distributed in the outer wall of interior tube body.
Have more than three or three in the interior tube body outer wall and to be wholely set with it and blade tip is the support blade of rotation counterclockwise, also have in the interior tube body outer wall and to be wholely set with it more than three or three and blade tip is right handed support blade, have and be the support blade that counterclockwise rotates blade tip and have the support blade that is clockwise direction rotation blade tip and be intervally arranged.
Described interior tube body and support blade are made into integration by nylon material.
When the utility model uses, both can 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 utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: the rotary flexible shaft supporting tube with S-shaped section support blade of the present utility model mainly is made of interior tube body 1 and support blade 2.
The utility model comprises 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 S-shaped section of described support blade 2, and support blade 2 is thickness by its blade root portion to its leaf tip and reduces shape gradually, and the blade root portion of support blade 2 and interior tube body 1 outer wall are acute angle and intersect.
The blade tip of all support blades 2 is and counterclockwise rotates or be the clockwise direction rotation.Described support blade 2 is three, four, five or six, and they are evenly distributed in the outer wall of interior tube body 1.
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 utility model is made the external diameter of the circle that its support blade 2 constitutes, when the utility model inserts the metal outer pipe use, all support blades 2 consistent to the sense of rotation that the top forms with the rotary flexible shaft sense of rotation by the bottom, 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 S-shaped section of support blade 2, all support blade 2 sense of rotation unanimities, and support blade 2 is thickness by its bottom to its top and reduces shape gradually, can make the leaf tip of support blade 2 have certain elasticity like this, the tip portion 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, this reaction force acts on interior tube body 1 through support blade 2, because support blade 2 is acute angle with interior tube body 1 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 outer end of support blade 2 is against the metal outer pipe inwall, support blade 2 radians of arcuation reduce, make support blade 2 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, support blade 2 radians 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 support blade 2 radians can be more and more littler, and this moment, reaction force also increased, all the time be consistent with transfer power size, so the utility model can be avoided transfer phenomenon, reduce vibration, make operation comfortable.
If, have more than three or three in interior tube body 1 outer wall and to be wholely set with it and blade tip is the support blade 2 of rotation counterclockwise, also have in interior tube body 1 outer wall and to be wholely set with it more than three or three and blade tip is right handed support blade 2, have to be the support blade 2 that counterclockwise rotates blade tip and to have the support blade 2 that is clockwise direction rotation blade tip and be intervally arranged, this rotary flexible shaft supporting tube has the function that can prevent two-way transfer simultaneously, and principle as mentioned above.
And the section of every support blade 2 is when all S-shaped, and it can make the transverse stress of rotary flexible shaft supporting tube increase greatly, has increased its intensity simultaneously.
Claims (5)
1, a kind of rotary flexible shaft supporting tube with S-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 S-shaped section of described support blade (2), and support blade (2) is thickness by its blade root portion to its leaf tip and reduces shape gradually, and the blade root portion of support blade (2) and interior tube body (1) outer wall are acute angle and intersect.
2, the rotary flexible shaft supporting tube with S-shaped section support blade as claimed in claim 1 is characterized in that: the blade tip of all support blades (2) is and counterclockwise rotates or be the clockwise direction rotation.
3, the rotary flexible shaft supporting tube with S-shaped section support blade as claimed in claim 1 or 2 is characterized in that: described support blade (2) is three, four, five or six, and they are evenly distributed in the outer wall of interior tube body (1).
4, the rotary flexible shaft supporting tube with S-shaped section support blade as claimed in claim 1, it is characterized in that: have more than three or three in interior tube body (1) outer wall and be wholely set with it and blade tip is the support blade (2) of rotation counterclockwise, also have in interior tube body (1) outer wall and to be wholely set with it more than three or three and blade tip is right handed support blade (2), have and be the support blade (2) that counterclockwise rotates blade tip and have the support blade (2) that is clockwise direction rotation blade tip and be intervally arranged.
5, the rotary flexible shaft supporting tube with S-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 |
|---|---|---|---|
| CNU2008201865583U CN201281074Y (en) | 2008-10-27 | 2008-10-27 | Rotating flexible shaft supporting tube of support blade with S-shaped section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201865583U CN201281074Y (en) | 2008-10-27 | 2008-10-27 | Rotating flexible shaft supporting tube of support blade with S-shaped section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281074Y true CN201281074Y (en) | 2009-07-29 |
Family
ID=40927949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201865583U Expired - Lifetime CN201281074Y (en) | 2008-10-27 | 2008-10-27 | Rotating flexible shaft supporting tube of support blade with S-shaped section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281074Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403409B (en) * | 2008-10-27 | 2010-06-02 | 宋磊 | Rotating flexible axle support pipe having support blade with S-shaped section |
-
2008
- 2008-10-27 CN CNU2008201865583U patent/CN201281074Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403409B (en) * | 2008-10-27 | 2010-06-02 | 宋磊 | Rotating flexible axle support pipe having support blade with S-shaped section |
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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: 20090729 Effective date of abandoning: 20081027 |