CN102297194A - Steering transmission shaft - Google Patents
Steering transmission shaft Download PDFInfo
- Publication number
- CN102297194A CN102297194A CN201110239505XA CN201110239505A CN102297194A CN 102297194 A CN102297194 A CN 102297194A CN 201110239505X A CN201110239505X A CN 201110239505XA CN 201110239505 A CN201110239505 A CN 201110239505A CN 102297194 A CN102297194 A CN 102297194A
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- CN
- China
- Prior art keywords
- bar
- rod
- interior bar
- outer bar
- connecting rod
- 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.)
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Abstract
The invention relates to a transmission mechanism in the mechanical field, and concretely relates to a steering transmission shaft. The steering transmission shaft which comprises a shaft rod and connecting pieces which are connected to two ends of the shaft rod is characterized in that: the shaft rod comprises an outer rod and an inner rod, the outer rod and the inner rod are helical springs, the inner rod is coaxially inserted into the inner cavity of the outer rod, and the helical direction of the inner rod is opposite to the helical direction of the outer rod. The steering transmission shaft of the present invention which has a simple structure can be used in various situations with moment steering transmission, and especially solves a problem that the vertical moment steering transmission in the prior art cannot be realized, so the steering transmission shaft can be used for moment transmission with large steering angles.
Description
Technical field
The present invention relates to a kind of driving mechanism in the mechanical field, specifically a kind of steering drive axle.
Background technique
In various machinery, often to use transmission shaft and come carry-over moment.Common transmission shaft can only be realized coaxial transmission, when soon the moment of torsion of input shaft passes to output shaft, requires the coaxial setting of output shaft and input shaft.But in real work, often there are the input shaft of various driving mechanisms and output shaft to be in various degree angle, that is to say and have turning to of several angle when input shaft is delivered to output shaft, under the less situation of steering angle, usually adopt universal joint to connect, existing universal joint can provide less steering angle, and the angle of permission input shaft and output shaft uses when being no more than 90 degree.But when the angle of input shaft and output shaft is 90 degree even when surpassing 90 degree, existing various universal joints, coupling all can't be realized the transmission of moment.
Summary of the invention
The present invention provides a kind of steering drive axle that can wide-angle turns to for addressing the above problem, and the moments that are applicable to zero degree to 90 degree even surpass 90 degree turn to the occasion of transmission.
The technological scheme that the present invention is adopted for the technical solution problem is:
Steering drive axle of the present invention comprises axostylus axostyle and is connected the link at axostylus axostyle two ends, it is characterized in that: described axostylus axostyle comprises outer bar, interior bar, described outer bar and interior bar are helical spring, and interior bar is coaxial to be inserted in the inner chamber of outer bar, and interior bar is opposite with the Hand of spiral of outer bar.
Have connecting rod on the described link, be fixedly connected on the land of connecting rod outer end, the inner of connecting rod is provided with thread groove, and described thread groove matches with the thread in inner cavity shape of interior bar, the end of bar in connecting rod is connected by this screw-thread fit; Land is provided with mounting hole, and the end of outer bar is inserted in the mounting hole.
Described outer bar is to be made of coaxial, isometrical, the staggered many cylindrically coiled springs that two above spring threads are entwined.
Owing to adopted said structure, steering drive axle of the present invention is simple in structure, can be used for the various occasions that turn to carry-over moment, has especially solved the vertical duction problem of transmission that prior art can't realize moment, can be used for the transmission of torque of big steering angle.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the end-face structure schematic representation of link.
Fig. 3 is the structural representation of another embodiment of the present invention.
Embodiment
As shown in the figure, steering drive axle of the present invention comprises axostylus axostyle and is connected the link 2,3 at axostylus axostyle two ends, the structure of link 2,3 can adopt cylindrical body as shown in Figure 2 as required, also can adopt column structures such as quadrangular or pentagonal prism, six prisms.Described axostylus axostyle comprises outer bar 4, interior bar 5, and described outer bar 4 and interior bar 5 are helical spring, and interior bar 5 is coaxial to be inserted in the inner chamber of outer bar 4, and in order to reach using effect preferably, the external diameter of interior bar 5 should be identical with the internal diameter of outer bar 4 or approaching.Interior bar 5 is opposite with the Hand of spiral of outer bar 4, and promptly one of them is a left-handed spring, and another is the dextrorotation spring.Interior bar 5 can adopt the monofilament spring, the spring that promptly adopts a spring thread to be entwined with outer bar 4; Also can adopt the multifibres spring, promptly coaxial, isometrical, the staggered many cylindrically coiled springs that are entwined by two above spring threads constitute.As shown in Figure 3,, can adopt 3 spring threads arranged side by side, turn to coaxial, isometrical cylindrically coiled spring simultaneously in order to improve the intensity of outer bar 4; At this moment, the spiral of other two spring threads is arranged all between adjacent two spirals of each root spring thread, the fatigue resistance of outer bar 4 significantly improves.
As shown in Figure 2, have connecting rod 21 on the described link 2,3, be fixedly connected on the land 22 of connecting rod 21 outer ends, the inner of connecting rod 21 is provided with thread groove, and described thread groove matches with the thread in inner cavity shape of interior bar 5, the end of bar 5 in connecting rod 21 is connected by this screw-thread fit; Land 22 is provided with mounting hole 23, and the end of outer bar 4 is inserted in the mounting hole 23.When outer bar 4 adopted the multifibres spring that 3 spring threads turn to, the end of 23,3 spring threads of 3 mounting holes that evenly distribute on the land 22 was inserted into respectively in 3 mounting holes.Certainly, if 4 employings of outer bar is the monofilament spring, then only need a mounting hole to get final product on the land 22.
During use, the direction of input shaft torque rotation is identical with the thread in inner cavity direction of interior bar 5, i.e. the direction of input shaft torque rotation should be to make the direction that screws in the connecting rod 21 inside bars 5.Under this strength effect, link 2,3 can not get loose, and the diameter of interior bar 5 has the trend of outside expansion, and the diameter of outer bar 4 has the trend of inside contraction, interior bar 5 and outer bar 4 support mutually, push, and the ability of its intensity and transmitting torque increases substantially.
When input shaft and output shaft were out of line, the axostylus axostyle that is made of interior bar 5 and outer bar 4 can be crooked arbitrarily, though bend to 90 degree right angles in addition above 90 spend the time designate so can carry-over moment.
Claims (3)
1. steering drive axle, comprise axostylus axostyle and the link (2), (3) that are connected the axostylus axostyle two ends, it is characterized in that: described axostylus axostyle comprises outer bar (4), interior bar (5), described outer bar (4) and interior bar (5) are helical spring, interior bar (5) is coaxial to be inserted in the inner chamber of outer bar (4), and interior bar (5) is opposite with the Hand of spiral of outer bar (4).
2. steering drive axle according to claim 1, it is characterized in that: have connecting rod (21) on described link (2), (3), be fixedly connected on the land (22) of connecting rod (21) outer end, the inner of connecting rod (21) is provided with thread groove, described thread groove matches with the thread in inner cavity shape of interior bar (5), and connecting rod (21) is connected the end of interior bar (5) by this screw-thread fit; Land (22) is provided with mounting hole (23), and the end of outer bar (4) is inserted in the mounting hole (23).
3. steering drive axle according to claim 2 is characterized in that: described outer bar (4) is to be made of coaxial, isometrical, the staggered many cylindrically coiled springs that two above spring threads are entwined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110239505XA CN102297194A (en) | 2011-08-19 | 2011-08-19 | Steering transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110239505XA CN102297194A (en) | 2011-08-19 | 2011-08-19 | Steering transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102297194A true CN102297194A (en) | 2011-12-28 |
Family
ID=45357806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110239505XA Pending CN102297194A (en) | 2011-08-19 | 2011-08-19 | Steering transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102297194A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174734A (en) * | 2012-12-19 | 2013-06-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Over-positioning elastic push-pull cable flexible shaft |
| CN108443304A (en) * | 2018-06-12 | 2018-08-24 | 袁江辉 | A kind of rotation drive machine, electric product, pneumatic product and electric toothbrush |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052404A (en) * | 1989-03-02 | 1991-10-01 | The Microspring Company, Inc. | Torque transmitter |
| CN2281874Y (en) * | 1996-05-17 | 1998-05-20 | 陈刚 | Cutter for soft shaft screw |
| DE10257637A1 (en) * | 2002-12-10 | 2004-06-24 | Volkswagen Ag | Flexible shaft for motor vehicles has spiral transmission spring with spiral counter spring positioned co-axially inside it, with both springs being pressure springs |
| WO2006072143A1 (en) * | 2005-01-06 | 2006-07-13 | Dbd Marine Pty Ltd | A joint |
| CN202182103U (en) * | 2011-08-19 | 2012-04-04 | 郭保可 | Steering transmission shaft |
-
2011
- 2011-08-19 CN CN201110239505XA patent/CN102297194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052404A (en) * | 1989-03-02 | 1991-10-01 | The Microspring Company, Inc. | Torque transmitter |
| CN2281874Y (en) * | 1996-05-17 | 1998-05-20 | 陈刚 | Cutter for soft shaft screw |
| DE10257637A1 (en) * | 2002-12-10 | 2004-06-24 | Volkswagen Ag | Flexible shaft for motor vehicles has spiral transmission spring with spiral counter spring positioned co-axially inside it, with both springs being pressure springs |
| WO2006072143A1 (en) * | 2005-01-06 | 2006-07-13 | Dbd Marine Pty Ltd | A joint |
| CN202182103U (en) * | 2011-08-19 | 2012-04-04 | 郭保可 | Steering transmission shaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174734A (en) * | 2012-12-19 | 2013-06-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Over-positioning elastic push-pull cable flexible shaft |
| CN108443304A (en) * | 2018-06-12 | 2018-08-24 | 袁江辉 | A kind of rotation drive machine, electric product, pneumatic product and electric toothbrush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |