CN102730594A - Magneto-rheological lifting rod - Google Patents
Magneto-rheological lifting rod Download PDFInfo
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- CN102730594A CN102730594A CN2011100900694A CN201110090069A CN102730594A CN 102730594 A CN102730594 A CN 102730594A CN 2011100900694 A CN2011100900694 A CN 2011100900694A CN 201110090069 A CN201110090069 A CN 201110090069A CN 102730594 A CN102730594 A CN 102730594A
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- inner sleeve
- magneto
- sleeve
- rheological
- magnetorheological
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Abstract
The invention discloses a magneto-rheological lifting rod comprising an outer sleeve and an inner sleeve. The inner sleeve can be internally sleeved in the outer sleeve in the manner of sliding back and forth along a vertical direction; one end of the outer sleeve is closed and the other end of the outer sleeve is sealed and penetrated by the inner sleeve; a magneto-rheological medium is filled into an inner cavity of the outer sleeve; at least one damping piston is arranged at a pipe section of the inner sleeve, which is close to the inner side end part; a magnet exciting coil is arranged on the outer circumference of the outer sleeve; and a magnetic wire of the magnet exciting coil penetrates through the inner cavity of the outer sleeve along a vertical direction. According to the magneto-rheological lifting rod provided in the invention, a lifted retracting sleeve is fixed by adopting a magneto-rheological principle; the magneto-rheological medium enables all degrees of freedom of the pipe section of the inner sleeve, which is located in the outer sleeve, to be limited under the effect of the magnet exciting coil; after the retracting sleeve is lifted, better strength and stability are realized; the defects of instability and low strength caused by a mechanical gap do not happen with the prolonging of a use period; the magneto-rheological lifting rod has the advantages of stability for lifting, low noise, high reliability and long service life; and when the magneto-rheological lifting rod is used, the stretching length of the inner sleeve does not need to be considered and can be fixed at any time; and the use is flexible and simple.
Description
Technical field
The present invention relates to a kind of jacking equipment, particularly a kind of lifting bar.
Background technology
Because simple in structure, operation is simple and reliable and on the jacking equipment in fields such as daily life, communication, fire-fighting, be widely used by joint reduction formula structure.Comprise the tube coupling assembly by the joint telescopic structure; The tube coupling assembly comprises from outside to inside successively with the chopped-off head tube coupling of mode socket sliding back and forth, middle tube coupling and final stage tube coupling; Different according to the difference of environment for use and rise height, said in the middle of tube coupling can be n, 0≤n; Go up sliding stretching out gradually through the drive mechanism tube coupling during use, be used for the equipment lifting that need are gone up and down.
The lifting rod structure of prior art generally adopts screw mandrel or hydraulic structure, can satisfy the demand of elevating function basically, still; Owing to the stability of the inner sleeve that all adopts the mechanical structure maintenance to stretch out, it is not steady therefore to go up and down, and noise is big; Stability and poor reliability; Life-span is short, and under harsies environment such as sand and dust, fault is especially frequent; Particularly along with the prolongation of operating cycles, tolerance clearance and quality of fit between inner sleeve and the outer tube change, and cause bulk strength and stability to reduce.
Therefore, need a kind of jacking equipment, have intensity and stability preferably after the rising, can not occur instability and the low defective of intensity that mechanical clearance causes along with the prolongation of operating cycles, have steadily, noise is little, and reliability is high, the advantage that the life-span is long.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of magnetorheological lifting bar, have intensity and stability preferably after the rising; Can not occur instability and the low defective of intensity that mechanical clearance causes along with the prolongation of operating cycles, have steadily, noise is little; Reliability is high, the advantage that the life-span is long.
The invention discloses a kind of magnetorheological lifting bar, comprise outer tube and inner sleeve, said inner sleeve is with can be along being placed in outer tube in the mode that longitudinally reciprocatingly slides; Said outer tube one end sealing; The other end is passed by the inner sleeve sealing, and said outer tube inner chamber is equipped with magnetorheological medium, and inner sleeve is provided with at least one damping piston near the pipeline section of medial end; Said outer tube excircle is provided with excitation coil, and the magnetic line of force of excitation coil longitudinally passes the outer tube inner chamber.
Further, said outer tube tube wall is a sandwich structure outward, and excitation coil is positioned at sandwich structure;
Further, said damping piston is the diminishing structure in end to the inside longitudinally, and damping piston is provided with the damping hole of vertical perforation;
Further, said magnetorheological medium is a magneto-rheological grease;
Further, be with second inner sleeve in the said inner sleeve, the sealing of inner sleeve medial end; Outboard end is passed by the sealing of second inner sleeve; The inner sleeve inner chamber is equipped with magneto-rheological grease, and second inner sleeve is provided with at least one second damping piston near the pipeline section of medial end, and said inner sleeve tube wall is outward a sandwich structure; Second excitation coil is set in the sandwich structure, and the magnetic line of force of second excitation coil longitudinally passes the inner sleeve inner chamber;
Further, the said excitation coil and second excitation coil are provided with source switch respectively.
Beneficial effect of the present invention: magnetorheological lifting bar of the present invention, adopt magnetorheological principle to fix the telescopic tube after raising, the pipeline section that magnetorheological medium can make inner sleeve be positioned at outer tube under the effect of excitation coil is limited whole degree of freedom; Has intensity and stability preferably after the rising; Can not occur instability and the low defective of intensity that mechanical clearance causes along with the prolongation of operating cycles, have steadily, noise is little; Reliability is high, the advantage that the life-span is long; And can consider the extension elongation of inner sleeve when using, fix at any time, use simple flexibly.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Accompanying drawing is structural representation of the present invention, and is as shown in the figure, magnetorheological lifting bar of the present invention; Comprise outer tube 1 and inner sleeve 4; Said inner sleeve 4 is with can be along being placed in outer tube 1 in the mode that longitudinally reciprocatingly slides, said outer tube 1 one ends sealing, and the other end is passed by inner sleeve 4 sealings; Can just there be the moving secret skill art of prior art to seal, all can reaches goal of the invention; Said outer tube 1 inner chamber is equipped with magnetorheological medium 3, and inner sleeve 4 is provided with at least one damping piston 10 near the pipeline section of medial end, and said outer tube 1 excircle is provided with excitation coil 2, and the magnetic line of force of excitation coil 2 longitudinally passes outer tube 1 inner chamber; In the present embodiment, damping piston 10 is one.
During use, adopt the drive configuration of existing lifting bar, after driving is raised to certain height, the excitation coil energising, magnetorheological medium solidifies, and then from horizontal and vertical holder post inner sleeve 4, forms comparatively stable structure; Time spent not, power cut-off, magnetorheological medium has flowing power, and then lifting bar can stretch arbitrarily.
In the present embodiment, said outer tube 1 tube wall is outward a sandwich structure, and excitation coil 2 is positioned at sandwich structure; This compact conformation is complete.
In the present embodiment, said damping piston 10 is the diminishing structure in end to the inside longitudinally, and damping piston 10 is provided with the damping hole 11 of vertical perforation; Can play shock damping action preferably, when excitation coil 2 is not switched on, have through performance preferably, damping piston 10 downward running resistances are less, and the lifting bar retraction is increased work efficiency.
In the present embodiment, said magnetorheological medium 3 is a magneto-rheological grease; Magnetic caking and corrosion problem can not appear in magneto-rheological grease, deposition can not occur, and sealing effectiveness are better yet.
In the present embodiment, be with second inner sleeve 6 in the said inner sleeve 4, the sealing of inner sleeve 4 medial ends, outboard end is passed by 6 sealings of second inner sleeve, can adopt the movable sealing structure of prior art; Inner sleeve 4 inner chambers are equipped with magneto-rheological grease, and second inner sleeve is provided with at least one second damping piston 7 near the pipeline section of medial end, and present embodiment is one; Said inner sleeve 4 tube walls are sandwich structure outward, and the magnetic line of force that second excitation coil, 5, the second excitation coils 5 are set in the sandwich structure longitudinally passes inner sleeve 4 inner chambers; Adopt second inner sleeve, 6 structures, can increase the adjustable height of lifting bar.
In the present embodiment, the said excitation coil 2 and second excitation coil 5 are provided with source switch respectively, can control respectively, improve the commonality of lifting bar.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. magnetorheological lifting bar is characterized in that: comprise outer tube and inner sleeve, said inner sleeve is with can be along being placed in outer tube in the mode that longitudinally reciprocatingly slides; Said outer tube one end sealing; The other end is passed by the inner sleeve sealing, and said outer tube inner chamber is equipped with magnetorheological medium, and inner sleeve is provided with at least one damping piston near the pipeline section of medial end; Said outer tube excircle is provided with excitation coil, and the magnetic line of force of excitation coil longitudinally passes the outer tube inner chamber.
2. according to the said magnetorheological lifting bar of claim 1, it is characterized in that: said outer tube tube wall is sandwich structure outward, and excitation coil is positioned at sandwich structure.
3. according to the said magnetorheological lifting bar of claim 2, it is characterized in that: said damping piston is the diminishing structure in end to the inside longitudinally, and damping piston is provided with the damping hole of vertical perforation.
4. according to the said magnetorheological lifting bar of claim 3, it is characterized in that: said magnetorheological medium is a magneto-rheological grease.
5. according to the said magnetorheological lifting bar of claim 4, it is characterized in that: be with second inner sleeve in the said inner sleeve, the sealing of inner sleeve medial end; Outboard end is passed by the sealing of second inner sleeve; The inner sleeve inner chamber is equipped with magneto-rheological grease, and second inner sleeve is provided with at least one second damping piston near the pipeline section of medial end, and said inner sleeve tube wall is outward a sandwich structure; Second excitation coil is set in the sandwich structure, and the magnetic line of force of second excitation coil longitudinally passes the inner sleeve inner chamber.
6. according to the said magnetorheological lifting bar of claim 5, it is characterized in that: the said excitation coil and second excitation coil are provided with source switch respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100900694A CN102730594A (en) | 2011-04-11 | 2011-04-11 | Magneto-rheological lifting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100900694A CN102730594A (en) | 2011-04-11 | 2011-04-11 | Magneto-rheological lifting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102730594A true CN102730594A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100900694A Pending CN102730594A (en) | 2011-04-11 | 2011-04-11 | Magneto-rheological lifting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102730594A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316479A (en) * | 2013-06-13 | 2013-09-25 | 郑运婷 | Rocking boat |
| CN108946591A (en) * | 2018-08-22 | 2018-12-07 | 国家电网公司 | A kind of working messenger wire lifting device of electrical line setting |
| CN114032809A (en) * | 2021-10-30 | 2022-02-11 | 上海敏泰交通设施工程有限公司 | Device for pedestrian crossing road obstacle |
-
2011
- 2011-04-11 CN CN2011100900694A patent/CN102730594A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316479A (en) * | 2013-06-13 | 2013-09-25 | 郑运婷 | Rocking boat |
| CN108946591A (en) * | 2018-08-22 | 2018-12-07 | 国家电网公司 | A kind of working messenger wire lifting device of electrical line setting |
| CN114032809A (en) * | 2021-10-30 | 2022-02-11 | 上海敏泰交通设施工程有限公司 | Device for pedestrian crossing road obstacle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |