CN103591201A - Telescopic magnetic jackstay - Google Patents
Telescopic magnetic jackstay Download PDFInfo
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- CN103591201A CN103591201A CN201310587268.5A CN201310587268A CN103591201A CN 103591201 A CN103591201 A CN 103591201A CN 201310587268 A CN201310587268 A CN 201310587268A CN 103591201 A CN103591201 A CN 103591201A
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- end socket
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Abstract
The invention relates to a telescopic magnetic jackstay. In order to overcome the defects of an existing telescopic jackstay, the telescopic magnetic jackstay is designed by utilizing the magnetic spring principle. The telescopic magnetic jackstay comprises an inside-sleeved type magnetic spring, a piston and a piston rod, wherein the inside-sleeved type magnetic spring is composed of a piston cylinder and at least two sets of magnetic elements, the magnetic elements are arranged in the piston cylinder and can move in the axial direction of the piston cylinder, the piston is arranged in the piston cylinder, and one end of the piston rod is fixedly connected with the piston. The telescopic magnetic jackstay is characterized in that the head end and the tail end of the piston cylinder are provided with end sockets, wherein the end socket at the head end of the piston cylinder is provided with a hole, and the piston rod extends out of the hole; the inner side of the end socket at the tail end and the end faces of the piston are fixedly provided with soft iron sheets, and the magnetic elements located at the two ends in the piston cylinder are connected to the inner side of the end socket at the tail end and the end faces of the piston respectively through the soft iron sheets in a magnetic-adsorption mode. Compared with the prior art, the telescopic magnetic jackstay has the advantages that the structure of the telescopic magnetic jackstay is simple; the support force of the telescopic magnetic jackstay is equivalent to the support force of a pneumatic jackstay, outclasses the support force of a spring jackstay and is convenient to adjust; besides, the requirement for machining accuracy is low, cost is low, adaptability to environment is high, and service life is long.
Description
Technical field
The invention belongs to mechanical field, relate to a kind of telescopic brace rod, particularly a kind of telescopic magnetic force strut.
Background technique
Current extension type strut mainly contains the pneumatic rod of spring strut and filling nitrogen.Wherein spring strut support force is smaller, and application is limited, and can lose efficacy because spring access times metal fatigue occur after acquiring a certain degree; And pneumatic rod is due to the filling at low temperatures liquid nitrogen of needs, be converted at normal temperatures again pressurized gas, and require high for cylinder and piston machining accuracy, manufacturing process is complicated, manufacture cost is higher, under hot environment, there is danger, service time of a specified duration can because Sealing is aging, cause high pressure gas leakage, and then cause strut to lose efficacy; Except the strut of above two kinds of forms, also has a kind of hydraulic pressure strut, hydraulic pressure strut is due to needs hydraulic driving, therefore more complicated, be characterized in: support force is extremely strong, but slow in one's movements, its application is also not quite similar with upper two kinds, due to what the present invention relates to, be passive strut, therefore, active hydraulic strut does not compare object at this.
Summary of the invention
The object of the invention is to: for the shortcoming of existing telescopic brace rod, utilize a kind of telescopic brace rod of magnetic spring principle design.Compared with prior art, feature of the present invention is: simple in structure, support force and pneumatic rod are suitable, and far above spring spacer bar, support force is easy to adjust, low to requirement on machining accuracy, low cost, and environmental suitability is strong, long service life.
The object of the invention is by adopting following technological scheme to realize:
A kind of telescopic magnetic force strut, comprise by piston cylinder and be placed in can be along the internal cover type magnetic spring consisting of the relative magnetic element of at least two groups magnetic pole of the same name of its axial motion in piston cylinder, be placed in the piston rod that piston in piston cylinder and one end and piston are connected, it is characterized in that: there is end socket at described piston cylinder head and the tail two ends, wherein piston cylinder head end end socket end is porose, and piston rod thus hole stretches out; On tail end end socket inner side and piston end surface, be fixed with soft iron sheet, in piston cylinder, the magnetic element at two ends is connected on tail end end socket inner side and piston end surface by soft iron sheet in magnetic-adsorption mode.
In experimenting, we find out that, in some cases, the support force that the magnetic force strut that uses single permanent magnet to form as magnetic element produces cannot meet the demands, and adopt the stack of multiple permanent magnet body to form the mode of magnetic element, just can improve support force, this kind of mode also makes us open up a kind of simple and feasible approach of adjusting magnetic force strut support force.Therefore, different according to the demand to magnetic force strut support force, described magnetic element can be single permanent magnet, also can be formed by stacking by the relative permanent magnet of two or more synonyms poles.
Described piston cylinder head end end socket is connected with piston cylinder in the mode of being spirally connected, and can be by the combination degree of depth of threaded adjustment head end end socket and piston cylinder; The mode of being spirally connected of described piston cylinder head end end socket and piston cylinder can be that head end end socket is outside thread, and piston cylinder is internal thread, i.e. overcoat mode; Also can be that head end end socket is internal thread, piston cylinder be outside thread, i.e. inner sleeve mode; Head end end socket and reach thereof are determined according to the piston rod stroke length of required adjustment, and the frictional force when increasing manual rotation jacket-type head end end socket can also adopt the modes such as annular knurl, etching, injection moulding to increase decorative pattern at the outer surface of jacket-type head end end socket.
At present, permanent magnet is mainly divided into two classes: ferrite permanent magnet and rare-earth permanent magnet, and take the magnetic energy product of the rare-earth permanent magnet that Nd-Fe-B permanent magnet is representative than ferrite permanent-magnet height more than ten times, and be difficult for demagnetization, low price, be the strongest permanent magnet of magnetic in the world today, be called as " magnetic king ".Requirement to support force while using for the present invention can be reached, described magnetic element preferably adopts magnetic force rare-earth permanent magnet strong and that be difficult for demagnetizing to make, and considers performance and price factor, preferentially selects Nd-Fe-B permanent magnet.
For avoiding the impact of piston to head end end socket in using process, between piston and head end end socket, there is buffer element; Described buffer element can be rubber pad, can be also spring, can also be the magnetic spring forming at piston two permanent magnets relative with magnetic pole of the same name between head end end socket.
For avoiding the interference of magnetic material to magnetic spring motion, the material of described piston cylinder and end socket is nonmagnetic substance, can use nonmetallic material, as high strength nonmetallic material such as glass fibre reinforced plastics, nylon, also can select nonmagnetic material, as aluminum alloy or Cuprum alloy.Because nonmetallic material cannot meet requirement of strength in some cases, and the price of aluminium and copper material is very expensive, in the occasion higher to telescopic pole requirement of strength, our preferred version is to make piston cylinder with steel, and the one deck of wall plating within it nonmagnetic material, to completely cut off the magnetic line of force, this coating material is preferentially selected copper.
Accompanying drawing explanation
Fig. 1 and Fig. 2 are respectively two embodiments' of the present invention schematic diagram.
Reference character: 1-piston cylinder, 2-magnetic element, 3-tail end end socket, 4-head end end socket, 5-piston, 6-piston rod, 7-buffer element, 8-1-piston end surface soft iron sheet, 8-2-tail end end socket soft iron sheet, 9-1-tail end connecting ring, 9-2-piston rod connecting ring.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1: a kind of telescopic magnetic force strut as shown in Figure 1, comprise by piston cylinder 1 and be placed in can be relative along the magnetic pole of the same name of its axial motion in piston cylinder 1 four groups of internal cover type magnetic springs that magnetic element 2 forms, be placed in the piston rod 6 that piston 5 in piston cylinder 1 and one end and piston 5 are connected; It is characterized in that: there are copper tail end end socket 3 and head end end socket 4 in described piston cylinder 1 head and the tail two ends, in the inner sleeve mode that is spirally connected, are connected with piston cylinder 1, and wherein head end end socket 4 ends of piston cylinder 1 are porose, and piston rod 6 thus hole stretches out; Adjust the degree of depth that is spirally connected of head end end socket 4, can adjust the stroke of piston rod 6; On tail end end socket 3 inner sides and piston 5 end faces, be fixed with respectively tail end end socket soft iron sheet 8-2 and piston end surface soft iron sheet 8-1,2, the magnetic force unit that is positioned at piston cylinder 1 two ends rely on magnetic force to be absorbed and fixed at respectively on tail end end socket 3 and the end face of piston 5 on.
For avoiding the impact of 5 pairs of head end end sockets 4 of piston in using process, between piston 5 and head end end socket 4, there is rubber buffer 7.
Described piston cylinder 1 adopts steel to make, and the layer of copper of wall plating within it material, to completely cut off the magnetic line of force.
On piston cylinder 1 tail end and piston rod 6 tops, be provided with for telescopic magnetic force strut tail end connecting ring 9-1 and the piston rod connecting ring 9-2 being connected is installed.
Embodiment 2: a kind of telescopic magnetic force strut as shown in Figure 2, comprise by piston cylinder 1 and be placed in can be relative along the magnetic pole of the same name of its axial motion in piston cylinder 1 four groups of internal cover type magnetic springs that magnetic element 2 forms, be placed in the piston rod 6 that piston 5 in piston cylinder 1 and one end and piston 5 are connected; There is tail end end socket 3 and the head end end socket 4 of nylon material at described piston cylinder 1 head and the tail two ends, in the jacket-type mode that is spirally connected, are connected with piston cylinder 1, and wherein the end of piston cylinder 1 head end end socket 4 is porose, and piston rod 6 thus hole stretches out; The degree of depth that is spirally connected of adjusting head end end socket 4, can realize the adjustment to piston rod 6 strokes; Magnetic element 2 in the present embodiment is single Nd-Fe-B permanent magnet.For preventing that magnetic element from overturning and then causing strut loss of function in piston cylinder, the length of described magnetic element is not less than its external diameter.
In practice, owing to need to adjusting head end end socket 4 degree of depth that is spirally connected with piston cylinder 1, if adopted as the mode that is spirally connected of the inner sleeve in embodiment 1, just need to rotate head end end socket 4 with special tool; And for the ease of the free-hand rotation head end of the instrument of exempting from end socket 4, in the present embodiment, head end end socket 4 adopts the overcoats mode that is spirally connected.In addition, on the outer surface of head end end socket 4, be carved with decorative pattern, so that the frictional force while increasing manual rotation head end end socket 4.
For avoiding the impact of 5 pairs of head end end sockets 4 of piston in using process, between piston 5 and head end end socket 4 by the magnetic spring cushion pad 7 being formed by two relative permanent magnets of magnetic pole of the same name.
Described piston cylinder 1 adopts glass fibre reinforced plastics to make, and for ease of machining screw, also guarantees to be spirally connected intensity, the overcoat (not shown) of the nylon material that can also be connected at head and the tail two ends.
On piston cylinder 1 tail end and piston rod 6 tops, be provided with for telescopic magnetic force strut tail end connecting ring 9-1 and the piston rod connecting ring 9-2 being connected is installed.
The present invention utilizes by single rare-earth permanent magnet or the relative multistage rare-earth permanent magnet stack of synonyms pole and forms magnetic element, utilize the repulsive force formation magnetic spring of magnetic pole of the same name between many group magnetic elements to produce support force, simple in structure, support force and pneumatic rod are suitable, far above spring spacer bar, and can by adjusting the stack quantity of permanent magnet, change easily the size of support force; Low cost, low to requirement on machining accuracy, the highest Environmental Conditions temperature can reach 250 ℃, and environmental suitability is strong, long service life, low cost of manufacture, economizes on resources, and can replace spring spacer bar and pneumatic rod completely; Under the hot environment that particularly can cannot use at pneumatic rod, use.Can be widely used in industry, agricultural and family life field, such as: machinery, electronic equipment, automobile, furniture etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a telescopic magnetic force strut, comprise by piston cylinder (1) and be placed in can be along the internal cover type magnetic spring consisting of the relative magnetic element (2) of at least two groups magnetic pole of the same name of its axial motion in piston cylinder (1), be placed in the piston rod (6) that the interior piston (5) of piston cylinder (1) and one end and piston (5) are connected, it is characterized in that: there is end socket (3,4) at described piston cylinder (1) head and the tail two ends, wherein piston cylinder (1) head end end socket (4) end is porose, and piston rod (6) stretches out in hole thus; On tail end end socket (3) inner side and piston (5) end face, be fixed with soft iron sheet (8), in piston cylinder (1), the magnetic element (2) at two ends is connected on tail end end socket (3) inner side and piston (5) end face by soft iron sheet (8) in magnetic-adsorption mode; Described magnetic element (2) can be single permanent magnet, also can be formed by stacking by being no less than two relative permanent magnets of synonyms pole.
2. a kind of telescopic magnetic force strut as claimed in claim 1, it is characterized in that: described piston cylinder (1) head end end socket (4) is connected with piston cylinder (1) in the mode of being spirally connected, and can be by the combination degree of depth of threaded adjustment head end end socket (4) and piston cylinder (1).
3. a kind of telescopic magnetic force strut as claimed in claim 1 or 2, is characterized in that: described magnetic element (2) is made by rare-earth permanent magnet, preferably Nd-Fe-B permanent magnet.
4. a kind of telescopic magnetic force strut as claimed in claim 2, is characterized in that: between described head end end socket (4) and piston cylinder (1), adopt the inner sleeve mode that is spirally connected.
5. a kind of telescopic magnetic force strut as claimed in claim 2, is characterized in that: between described head end end socket (4) and piston cylinder (1), adopt the overcoat mode that is spirally connected, and be carved with decorative pattern on head end end socket (4) outer surface.
6. a kind of telescopic magnetic force strut as described in claim 1 to 5, it is characterized in that: between piston (5) and head end end socket (4), be provided with buffer element (7), described buffer element (7) can be rubber pad or spring, can be to be also positioned at the magnetic spring that two permanent magnets that between piston (5) and head end end socket (4), homopolarity is relative form.
7. a kind of telescopic magnetic force strut as described in claim 1 to 6, is characterized in that: the material of described piston cylinder (1) and end socket (3,4) is nonmagnetic substance, and preferential selection can completely cut off the nonmagnetic material of the magnetic line of force.
8. a kind of telescopic magnetic force strut as described in claim 1 to 6, it is characterized in that: the material of described piston cylinder (1) is steel, and wall is coated with one deck nonmagnetic material within it, preferentially selects copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587268.5A CN103591201A (en) | 2013-11-21 | 2013-11-21 | Telescopic magnetic jackstay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587268.5A CN103591201A (en) | 2013-11-21 | 2013-11-21 | Telescopic magnetic jackstay |
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| Publication Number | Publication Date |
|---|---|
| CN103591201A true CN103591201A (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310587268.5A Pending CN103591201A (en) | 2013-11-21 | 2013-11-21 | Telescopic magnetic jackstay |
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| CN (1) | CN103591201A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500642A (en) * | 2014-11-25 | 2015-04-08 | 许继集团有限公司 | Permanent magnetic hydraulic buffer |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
Citations (10)
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|---|---|---|---|---|
| CN2469241Y (en) * | 2001-03-19 | 2002-01-02 | 梁桂创 | Magnetic floating type shock-proof device |
| DE20120797U1 (en) * | 2001-12-21 | 2002-04-18 | Giehle, Andreas, 14476 Leest | Magnetic damping system |
| CN2575367Y (en) * | 2002-08-13 | 2003-09-24 | 经玉凤 | Rubber belt type stageless speed changing machine |
| CN2837606Y (en) * | 2005-08-27 | 2006-11-15 | 王海金 | Magnetic elastomer |
| CN200965029Y (en) * | 2006-11-14 | 2007-10-24 | 闫铁 | Permanent-magnet shock damper |
| CN201068947Y (en) * | 2007-07-07 | 2008-06-04 | 郑长旺 | Magnet shock-absorber |
| CN201125979Y (en) * | 2007-10-19 | 2008-10-01 | 刘春会 | Motor vehicle multifunctional constant force impact damper |
| CN201246432Y (en) * | 2008-08-06 | 2009-05-27 | 李国兴 | Magnetoelastic shock damper |
| CN202326864U (en) * | 2011-10-12 | 2012-07-11 | 黄强 | Shock absorber with suspension magnet |
| CN203685955U (en) * | 2013-11-21 | 2014-07-02 | 唐旺 | Telescopic type magnetic support rod |
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2013
- 2013-11-21 CN CN201310587268.5A patent/CN103591201A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469241Y (en) * | 2001-03-19 | 2002-01-02 | 梁桂创 | Magnetic floating type shock-proof device |
| DE20120797U1 (en) * | 2001-12-21 | 2002-04-18 | Giehle, Andreas, 14476 Leest | Magnetic damping system |
| CN2575367Y (en) * | 2002-08-13 | 2003-09-24 | 经玉凤 | Rubber belt type stageless speed changing machine |
| CN2837606Y (en) * | 2005-08-27 | 2006-11-15 | 王海金 | Magnetic elastomer |
| CN200965029Y (en) * | 2006-11-14 | 2007-10-24 | 闫铁 | Permanent-magnet shock damper |
| CN201068947Y (en) * | 2007-07-07 | 2008-06-04 | 郑长旺 | Magnet shock-absorber |
| CN201125979Y (en) * | 2007-10-19 | 2008-10-01 | 刘春会 | Motor vehicle multifunctional constant force impact damper |
| CN201246432Y (en) * | 2008-08-06 | 2009-05-27 | 李国兴 | Magnetoelastic shock damper |
| CN202326864U (en) * | 2011-10-12 | 2012-07-11 | 黄强 | Shock absorber with suspension magnet |
| CN203685955U (en) * | 2013-11-21 | 2014-07-02 | 唐旺 | Telescopic type magnetic support rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500642A (en) * | 2014-11-25 | 2015-04-08 | 许继集团有限公司 | Permanent magnetic hydraulic buffer |
| CN104500642B (en) * | 2014-11-25 | 2017-06-06 | 许继集团有限公司 | A kind of permanent magnet hydraulic buffer |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
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Application publication date: 20140219 |