CN101793288B - Rotary flexible shaft supporting tube with support blades having inclined triangular-arc sections - Google Patents
Rotary flexible shaft supporting tube with support blades having inclined triangular-arc sections Download PDFInfo
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- CN101793288B CN101793288B CN2009102334330A CN200910233433A CN101793288B CN 101793288 B CN101793288 B CN 101793288B CN 2009102334330 A CN2009102334330 A CN 2009102334330A CN 200910233433 A CN200910233433 A CN 200910233433A CN 101793288 B CN101793288 B CN 101793288B
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- tube body
- support
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- interior tube
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Abstract
The invention relates to a rotary flexible shaft supporting tube with support blades having inclined triangular-arc sections, which comprises an inner tube body and three or more support blades. The three or more support blades are integrally arranged on the outer wall surface of the inner tube body; the support blades on the outer wall surface of the inner tube body extend along the length direction of the inner tube body; each support blade is formed by connecting the top parts of a first blade single body and a second blade single body; the sections of the first and second blade single bodies are both arc; the wall thicknesses of the first and second blade single bodies are both less than that of the inner tube body; the width of the first blade single body is greater than that of the second blade single body; the intersection angle formed between the first blade single body and the outer wall surface of the inner tube body is less than that formed between the second blade single body and the outer wall surface of the inner tube body; and the rotation directions of all first blade single bodies are consistent with those of all second blade single bodies. The rotary flexible shaft supporting tube has the advantages of effectively avoiding following rotation, reducing vibration, reducing noise pollution, preventing the rotary flexible shaft from being blocked, improving the work efficiency, prolonging the service life, and improving the operational comfort.
Description
Technical field
The present invention relates to a kind of rotary flexible shaft supporting tube, especially a kind of have a rotary flexible shaft supporting tube that section is the inclined triangular-arc support blade.
Background technique
All must use support tube to support the rotary flexible shaft that is used for transferring power in the mowing machine in equipment for plant protection field, loosenning tiller, during use, support tube is inserted in the metal jacket pipe tube chamber.Guarantee rotary flexible shaft in supporting tube chamber with coaxial (concentric) rotation status of metal outer pipe, the damage of friction, noise, reduction flexible axle and support tube in the time of can at utmost reducing rotary flexible shaft and rotate and the loss minimum when realizing transferring power.
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, support blade is thin.During installation, in metal jacket pipe, peg graft stable in order to guarantee support tube, distance is slightly larger than the internal diameter of metal jacket pipe between support blade outer end to the interior tube body center of circle, and the support blade discontinuity distortion of the support tube after installing has like this caused the distortion or the desaxe degree of tube chamber in the support tube big.Rotary flexible shaft is in the support tube tube chamber during high speed rotating, because the heat that rotary flexible shaft friction support pipe lumen wall produces heats up support tube, the support tube hose expansion is transmitted the outside extrusion metal outer sleeve inner wall of strength by support blade, because the high strength of metal sleeve, support blade can't cause metal jacket pipe outwards to be out of shape and elimination pressure, so support blade can only inwardly push the wall of the lumen of support tube, thereby cause the distortion of support tube tube chamber, and the rotary flexible shaft that continues high speed rotating continues the tube wall of friction texturizing, make the interior tube body friction level bigger, cause the support tube transfer, the tube chamber wearing and tearing, noise aggravation (support tube transfer blade and metal-coating pipe friction send noise ear-piercing), and generation is trembled, reduce operation comfort, also produced noise pollution.Though later technology has been improved the structure of support blade, the deformation extent of tube chamber is alleviated, but because support blade is thin, when mounted, especially produce the displacement of support tube tube chamber axle center in the place of metal-coating pipe bend, depart from the concentric circle degree and strengthen, equally also can produce the coaxial state that rotatablely moves of change rotary flexible shaft, cause wearing and tearing, noise, kinetic equation loss to strengthen.Outer sleeve can be metal or other suitable materials.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and prevent to produce transfer phenomenon, reduce vibrations, reduce noise pollution, avoid running shaft stuck, raise the efficiency, increase the service life, operate the comfortable rotary flexible shaft supporting tube that section is the inclined triangular-arc support blade that has.
According to technological scheme provided by the invention, described have a rotary flexible shaft supporting tube that section is the inclined triangular-arc 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 top of described support blade clamps, the bottom abduction of support blade, and support blade is linked to each other by tip portion with the second blade monomer by the first blade monomer and forms, the first blade monomer all links to each other with the interior tube body outer wall with the bottom of the second blade monomer, and the section of the first blade monomer and the second blade monomer is arc, the wall thickness of the first blade monomer and the second blade monomer is all less than the wall thickness of interior tube body, the top of all support blades is identical apart from the distance of interior tube body die, and the width of the first blade monomer is greater than the thickness of the second blade monomer, the angle of cut that the angle of cut that the first blade monomer is become with the interior tube body outer wall is become with the interior tube body outer wall less than the second blade monomer, all first blade monomers are consistent with the sense of rotation of the second blade monomer.
2/3 of the first blade monomer and the second blade monomer highly located until the attenuation gradually of its tip thickness.Described support blade is distributed in the interior tube body outer wall equably.
After the present invention installs and uses; can effectively prevent transfer phenomenon, reduce vibrations, reduce noise pollution; avoid rotary flexible shaft stuck; increase work efficiency, increase the service life; improve operational comfort, can be widely used in that equipment for plant protection, Motor Vehicle, automatic hydraulic equipment etc. are electronic, pneumatic, the rotary flexible shaft of fuel oil motive power machine equipment uses.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, the present invention mainly is made of interior tube body 1, support blade 2, the first blade monomer 2.1 and the second blade monomer 2.2.
Embodiment 1
This has the rotary flexible shaft supporting tube that section is the inclined triangular-arc 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, the top of described support blade 2 clamps, the bottom abduction of support blade 2, and support blade 2 is linked to each other by tip portion with the second blade monomer 2.2 by the first blade monomer 2.1 and forms, the first blade monomer 2.1 all links to each other with interior tube body 1 outer wall with the bottom of the second blade monomer 2.2, and the section of the first blade monomer 2.1 and the second blade monomer 2.2 is arc, the wall thickness of the first blade monomer 2.1 and the second blade monomer 2.2 is all less than the wall thickness of interior tube body 1, the top of all support blades 2 is identical apart from the distance of interior tube body 1 die, and the width of the first blade monomer 2.1 is greater than the thickness of the second blade monomer 2.2, the angle of cut that the angle of cut that the first blade monomer 2.1 is become with interior tube body 1 outer wall is become with interior tube body 1 outer wall less than the second blade monomer 2.2, all first blade monomers 2.1 are consistent with the sense of rotation of the second blade monomer 2.2, promptly all the first blade monomers 2.1 and the second blade monomer 2.2 turn clockwise (as Fig. 1) or all first blade monomers 2.1 and the second blade monomer 2.2 are rotated counterclockwise simultaneously simultaneously, and promptly support blade 2 is skewed.The two is asymmetric arc for the first blade monomer 2.1 and the second blade monomer 2.2, and promptly support blade 2 is skewed, all inclined triangular-arc support blade sense of rotation unanimities, or clockwise or counterclockwise.The thickness of the first blade monomer 2.1 and the second blade monomer 2.2 is uniform.Support blade 2 is arranged on the outer wall of interior tube body 1 equably.
This has the rotary flexible shaft supporting tube that section is the inclined triangular-arc 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, the top of described support blade 2 clamps, the bottom abduction of support blade 2, and support blade 2 is linked to each other by tip portion with the second blade monomer 2.2 by the first blade monomer 2.1 and forms, the first blade monomer 2.1 all links to each other with interior tube body 1 outer wall with the bottom of the second blade monomer 2.2, and the section of the first blade monomer 2.1 and the second blade monomer 2.2 is arc, the wall thickness of the first blade monomer 2.1 and the second blade monomer 2.2 is all less than the wall thickness of interior tube body 1, the top of all support blades 2 is identical apart from the distance of interior tube body 1 die, and the width of the first blade monomer 2.1 is greater than the thickness of the second blade monomer 2.2, the angle of cut that the angle of cut that the first blade monomer 2.1 is become with interior tube body 1 outer wall is become with interior tube body 1 outer wall less than the second blade monomer 2.2, the two is asymmetric arc for the first blade monomer 2.1 and the second blade monomer 2.2, be that support blade 2 is skewed, all support blade sense of rotation unanimities, or clockwise or counter clockwise direction.2/3 of the first blade monomer 2.1 and the second blade monomer 2.2 highly located until its tip thickness attenuation gradually (as Fig. 2).Described support blade 2 is distributed in interior tube body 1 outer wall equably.
It is that the support blade 2 of oblique triangle arcuation (being the shark fin-shaped) structure has guaranteed support blade 2 excellent elasticity and heat dispersion that the present invention adopts section.Two side arcuate structures, the first blade monomer 2.1 and the second blade monomer 2.2 2/3 highly the place until its tip thickness structure of attenuation gradually, regulated the elastic performance of support blade 2, guaranteed that like this interior tube body 1 can not make interior tube body 1 cause distortion under support blade 2 compressings because of the over-running heating of rotary flexible shaft, because the structure of support blade 2 top attenuation can resolve into tangential pressure with the radial pressure that body heating is expanded, from the distortion of having avoided interior tube body 1 ideally of clearing up of the radial pressure of 2 pairs of interior tube bodies 1 of support blade; 2 superior elasticity performances of equally distributed support blade can compensate assembly error, especially at metal jacket pipe curved arc place, support blade 2 was not yielding when support tube was inserted in assembling, it is concentric circle position and fitting tight that 2 the resilience trend that is subjected to the support blade of metal-coating inner tube wall compressing makes support tube be in the metal jacket pipe middle position, it is very important that interior tube body 1 is in the metal jacket pipe middle position, can guarantee farthest that rotary flexible shaft does coaxial rotation at the central position of interior tube body 1, can alleviate the friction of rotary flexible shaft to internal chamber wall, alleviate and tremble, reduce the loss of transferring power; The oblique triangle arc structure of support blade 2 can alleviate rotary flexible shaft when rotation effectively to the trembling of metal jacket pipe transmission, and improves operational comfort; The contacting part of support blade 2 and metal jacket pipe is beneficial to the heat of rotation generation and distributes to metal sleeve, can alleviate the distortion of interior tube body 1.
Claims (3)
1. one kind has the rotary flexible shaft supporting tube that section is the inclined triangular-arc 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, 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 top of described support blade (2) clamps, the bottom abduction of support blade (2), and support blade (2) is linked to each other by tip portion with the second blade monomer (2.2) by the first blade monomer (2.1) and forms, the first blade monomer (2.1) all links to each other with interior tube body (1) outer wall with the bottom of the second blade monomer (2.2), and the first blade monomer (2.1) is arc with the section of the second blade monomer (2.2), the wall thickness of the first blade monomer (2.1) and the second blade monomer (2.2) is all less than the wall thickness of interior tube body (1), the tip portion distance of all support blades (2) is identical to the distance of interior tube body (1) die, and the width of the first blade monomer (2.1) is greater than the wall thickness of the second blade monomer (2.2); The first blade monomer (2.1) and interior tube body (1) angle of cut that outer wall became are less than the second blade monomer (2.2) and interior tube body (1) angle of cut that outer wall became, and all first blade monomers (2.1) are consistent with the sense of rotation of the second blade monomer (2.2)
2. as claimed in claim 1 have a rotary flexible shaft supporting tube that section is the inclined triangular-arc support blade, it is characterized in that: the first blade monomer (2.1) highly is located until its tip portion wall thickness attenuation gradually with 2/3 of the second blade monomer (2.2)
3. as claimed in claim 1 have a rotary flexible shaft supporting tube that section is the inclined triangular-arc support blade, and it is characterized in that: described support blade (2) is distributed in interior tube body (1) outer wall equably
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102334330A CN101793288B (en) | 2009-10-30 | 2009-10-30 | Rotary flexible shaft supporting tube with support blades having inclined triangular-arc sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102334330A CN101793288B (en) | 2009-10-30 | 2009-10-30 | Rotary flexible shaft supporting tube with support blades having inclined triangular-arc sections |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793288A CN101793288A (en) | 2010-08-04 |
| CN101793288B true CN101793288B (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102334330A Expired - Fee Related CN101793288B (en) | 2009-10-30 | 2009-10-30 | Rotary flexible shaft supporting tube with support blades having inclined triangular-arc sections |
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| Country | Link |
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| CN (1) | CN101793288B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742881B (en) * | 2013-12-19 | 2017-01-18 | 中山市加贝五金模具有限公司 | Joint mechanism for small table lamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695404A (en) * | 1983-05-23 | 1997-12-09 | Vinylex Corporation | Coaxial drive cable centering apparatus |
| US5839961A (en) * | 1996-06-15 | 1998-11-24 | Andreas Stihl | Bearing arrangement for a drive shaft |
| CN1604733A (en) * | 2001-12-17 | 2005-04-06 | 电气联合股份有限公司 | Shaft support |
| CN101403409A (en) * | 2008-10-27 | 2009-04-08 | 宋磊 | Rotating flexible axle support pipe having support blade with S-shaped section |
-
2009
- 2009-10-30 CN CN2009102334330A patent/CN101793288B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695404A (en) * | 1983-05-23 | 1997-12-09 | Vinylex Corporation | Coaxial drive cable centering apparatus |
| US5839961A (en) * | 1996-06-15 | 1998-11-24 | Andreas Stihl | Bearing arrangement for a drive shaft |
| CN1604733A (en) * | 2001-12-17 | 2005-04-06 | 电气联合股份有限公司 | Shaft support |
| CN101403409A (en) * | 2008-10-27 | 2009-04-08 | 宋磊 | Rotating flexible axle support pipe having support blade with S-shaped section |
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| Publication number | Publication date |
|---|---|
| CN101793288A (en) | 2010-08-04 |
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Granted publication date: 20111123 Termination date: 20141030 |
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