CN103410901B - Spring damping vibration absorber - Google Patents
Spring damping vibration absorber Download PDFInfo
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- CN103410901B CN103410901B CN201310319913.5A CN201310319913A CN103410901B CN 103410901 B CN103410901 B CN 103410901B CN 201310319913 A CN201310319913 A CN 201310319913A CN 103410901 B CN103410901 B CN 103410901B
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Abstract
The invention belongs to the field of vibration absorbers and particularly relates to a spring damping vibration absorber. The spring damping vibration absorber comprises two lardan university joints and two sleeves (including a small sleeve and a big sleeve), wherein flanges are arranged at the end parts of the lardan university joints; the small sleeve is sleeved with the big sleeve; the two sleeves only can do axial motion; a cylindrical spring with two tapered ends is fixed in the two sleeves; a guiding device is arranged in the cylindrical spring; a compressive sleeve and a damper are mounted on the guiding device; the pressure between the damper and the guiding device can be adjusted by screwing into and unscrewing the compressive sleeve, so as to adjust the damping force; one end of the big sleeve is in threaded connection with a pitch-adjusting sleeve in which a double-row angular contact bearing is arranged. The spring damping vibration absorber does not need hydraulic oil, is compact in structure, and has six degrees of freedom. Besides, damping force can be adjusted according to the actual situation; the whole height of the spring damping vibration absorber can be adjusted during mounting. Therefore, the spring damping vibration absorber has superior performance.
Description
Technical field
The invention belongs to vibration damper field, specifically a kind of spring damping and vibration isolating device.
Background technique
Along with the progress of China's science and technology, in a lot of fields all to highi degree of accuracy, long lifetime and stable vibration damper proposes requirement.Such as in the manned astro-engineering, being in the sports equipment set by the disease such as muscular atrophy and osteoporosis that weightlessness causes for avoiding astronaut for a long time, vibration can be produced in use; These vibrations can impact the motion of astrovehicle, therefore need vibration damper to be affected to avoid astrovehicle.Further, in the use of some accurate aircraft electronic system vibration reduction platforms, also need vibration damper to protect the safety of electronic system simultaneously.
At present, the vibration damper on market has many types, such as employing hydraulic oil form, employing pneumatic form etc.; But their most of precision are low, volume is comparatively large, and some also exists the risk of leakage of oil.Therefore the vibration damper that the such as situation such as aerospace engineering, high accuracy platform uses is directed to comparatively rare.
Summary of the invention
The object of the present invention is to provide a kind of spring damping and vibration isolating device.This spring damping and vibration isolating device uses spring and damping is adjustable, rigidity is adjustable, structure height is adjustable, has six-freedom degree, can on aircraft.
The object of the invention is to be achieved through the following technical solutions:
The present invention includes small sleeve, large sleeve, roll adjustment sleeve, spring and damper regulation mechanism, wherein one end of small sleeve is connected with universal joint cross, one end of the other end and large sleeve plugs, and relative movement vertically, guiding device is equipped with respectively in the inner space of small sleeve and large sleeve, spring and damper regulation mechanism, described guiding device comprises the axis of guide and guide pipe, this guide pipe is arranged on large sleeve inner, one end of guide pipe is passed by the other end of described large sleeve, be connected with the threaded one end of roll adjustment sleeve, the other end of described guide pipe plugs with the axis of guide being arranged on small sleeve inside, and relative movement vertically, described damper regulation mechanism is arranged on the outside of the axis of guide and guide pipe, and described spring housing is connected on the outside of the axis of guide, damper regulation mechanism and guide pipe, the other end of described roll adjustment sleeve is rotatably connected to universal joint cross, is adjusted the whole height of described spring damping and vibration isolating device by guide pipe and the length that is threaded of roll adjustment sleeve.
Wherein: described damper regulation mechanism comprises damping and clamp sleeve, wherein one end of clamp sleeve is threaded with the other end of described guide pipe, between the other end and the axis of guide of described clamp sleeve, be provided with damping, this damping is positioned at the conduit mouth place of the described guide pipe the other end; The top of described damping is the frustum of hollow, and bottom is the cylindrical body of hollow; One end of described clamp sleeve is shaped with internal thread, screws mutually with the outside thread of the described guide pipe the other end, the internal surface of the other end of clamp sleeve is the conical surface, corresponding with the top of described damping, when clamp sleeve and guide pipe inwardly screw, the compacted sleeve of described damping radially compresses;
The inside of described small sleeve one end is provided with frustum type groove, and one end of the axis of guide is cone table shape, is placed in described frustum type groove; The other end internal surface of described large sleeve and one end of guide pipe are the frustum type structure of external; Described spring is tapered spring, namely one end of spring be formula of tightening up frustum type structure, be fixed between axis of guide one end and described frustum type groove, the other end of described spring is the frustum type structure of external, between the one end being installed on guide pipe and large sleeve the other end internal surface;
The end, one end of described guide pipe is inwardly provided with groove vertically, and this groove is connected with the part of guide pipe with axis of guide grafting; The outer surface of described small sleeve is along the circumferential direction evenly equipped with multiple projection, and the internal surface of described large sleeve is along the circumferential direction evenly equipped with the corresponding bar-shaped trough of multiple and described projection;
The other end of described roll adjustment sleeve is rotationally connected by double-row angular contact bal bearing and universal joint cross; Described double-row angular contact bal bearing is provided with the bearing baffle be arranged on universal joint cross near the side of guide pipe, the opposite side of double-row angular contact bal bearing is provided with circlip for hole, seam and the circlip for hole axially locating of roll adjustment sleeve interior surface are passed through in the outer ring of described double-row angular contact bal bearing, and the inner ring of double-row angular contact bal bearing is by the seam axially locating on described bearing baffle and universal joint cross;
The circumferencial direction of described roll adjustment sleeve is evenly equipped with multiple jackscrew, described guide pipe be connected with roll adjustment bush whorl locate after fixed by jackscrew.
Advantage of the present invention and good effect are:
1. the present invention has six-freedom degree, the damping size of vibration damper can be changed in setting range by clamp sleeve, the rigidity size of integral vibration damping device can be changed by the spring changing different-stiffness (as different-diameter, material), the whole height of vibration damper can be changed by roll adjustment sleeve in setting range.
2. the two ends of vibration damper of the present invention employ universal joint cross, at one end with the addition of a double-row angular contact bal bearing, two sleeves axially can have relative movement, therefore whole vibration damper one has six-freedom degree, such structural design makes vibration damper can fall, so the power be applied on spring is only axial power perpendicular to the motion of axis and the motion buffering of circumferencial direction.
3. spring of the present invention and damper regulation mechanism have been placed on the inside of sleeve respectively, therefore the appearance that spring exposes the situation that produced external object and spring are interfered is avoided, and spring and damper regulation mechanism are placed on inside, also maintain the clean of spring and damping work, thus improve precision and life-span.
4. the present invention does not need to use hydraulic oil, therefore there is not the situation appearance that hydraulic oil is revealed.
Accompanying drawing explanation
Fig. 1 is overall structure plan view of the present invention;
Fig. 2 is internal structure sectional view of the present invention;
Fig. 3 is overall structure stereogram of the present invention;
Fig. 4 is the structural representation that the present invention installs the damper regulation mechanism of state;
Fig. 5 is that the present invention installs the spring of state and bearing and to be installed the structural representation of mode;
Fig. 6 is the structural representation of damping of the present invention;
Wherein: 1 is non-bearing end universal joint cross, and 2 is small sleeve, and 3 is large sleeve, and 4 is screw, 5 is jackscrew, and 6 is roll adjustment sleeve, and 7 is bearing end universal joint cross, and 8 is screw, 9 is screw, and 10 is the axis of guide, and 11 is damping, 12 is clamp sleeve, and 13 is guide pipe, and 14 is spring, 15 is screw, and 16 is bearing baffle, and 17 is double-row angular contact bal bearing, 18 is circlip for hole, and 19 is projection, and 20 is groove.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes small sleeve 2, large sleeve 3, roll adjustment sleeve 6, spring 14 and damper regulation mechanism, wherein small sleeve 2 is logical structure in half, and namely one end of small sleeve 2 is closed, the other end opening, and inner hollow; One end (closed end) of small sleeve 2 is connected with the non-bearing end universal joint cross 1 with flange, and the connection between non-bearing end universal joint cross 1 and small sleeve 2 is realized by four screws 8 that circumferencial direction is uniform.The other end of small sleeve 2 and one end of large sleeve 3 plug, as shown in Figure 3, multiple rectangular projection 19 is along the circumferential direction evenly equipped with at the outer surface of small sleeve 2 the other end port, the internal surface of large sleeve 3 one end port is along the circumferential direction evenly equipped with multiple bar-shaped trough corresponding with projection 19, large sleeve 3 can be realized relative to small sleeve 2 slip vertically, but relatively rotating without circumferencial direction.
Guiding device, spring 14 and damper regulation mechanism is equipped with respectively in small sleeve 2 with the inner space of large sleeve 3, guiding device comprises the axis of guide 10 and guide pipe 13, one end of the axis of guide 10 is fixed in the inside of small sleeve 2 one end by screw 9, the inside of small sleeve 2 one end is provided with a frustum type groove (namely the axial cross section of groove is "eight" shape), one end of the axis of guide 10 is cone table shape, corresponding with the frustum type groove in small sleeve 2 one end, be placed in this frustum type groove.Guide pipe 13 is affixed with large sleeve 3 by four screws 4 uniform at large sleeve 3 circumferencial direction, one end of guide pipe 13 is passed by the other end of large sleeve 3, is connected with the threaded one end of roll adjustment sleeve 6, the other end of small sleeve 2 is plugged in the other end of guide pipe 13, and can relative movement vertically.Damper regulation mechanism is arranged on the outside of guide pipe 13 the other end, as shown in Figure 4, damper regulation mechanism comprises damping 11 and clamp sleeve 12, fine thread has been attacked in the conduit mouth outside of guide pipe 13 the other end, and the inner screw thread having preseting length in one end of clamp sleeve 12 screws mutually with the external screw-thread of guide pipe 13; Between the other end and the axis of guide 10 of clamp sleeve 12, be provided with damping 11, this damping 11 is positioned at the conduit mouth place of guide pipe 13 the other end.As shown in Figure 6, the top of damping 11 is the frustum of hollow, and bottom is the cylindrical body of hollow; The internal surface of the other end of clamp sleeve 12 is the conical surface, corresponding with the top of damping 11, when clamp sleeve 12 inwardly screws with guide pipe 13, clamp sleeve 12 radially can compress damping 11, when clamp sleeve 12 screws out, between damping 11 and the axis of guide 10, pressure will reduce, pressure between such damping 11 and guide pipe 10 will change, thus affects the damping characteristic of whole spring damping and vibration isolating device, and the damping realizing designed vibration damper is adjustable.
Spring 14 is socketed in the outside of the axis of guide 10, damper regulation mechanism and guide pipe 13, the other end internal surface of large sleeve 3 and one end of guide pipe 13 are the frustum type structure of external, and namely axial cross section is "eight" shape and becomes large by one end of large sleeve 3 to the other end opening, spring 14 is tapered spring, namely two ends are frustum type, centre is cylinder, frustum type structure that one end of spring 14 is the formula of tightening up (described in the formula of tightening up one end axial cross section of being spring 14 be "eight" shape, and opening reduces to the closed end of small sleeve 2 gradually), be fixed between the frustum type groove in one end of the axis of guide 10 cone table shape and small sleeve 2, the other end of spring 14 is the frustum type structure (described external is identical with the other end internal surface of large sleeve 3 and one end shape of guide pipe 13) of external, be installed between one end of guide pipe 13 and large sleeve 3 the other end internal surface.One end of spring 14 be the formula of tightening up, the other end is external, this shape is adopted to be inside in order to make spring 14 can be installed on vibration damper comparatively securely, and can spring 14 for convenience detach by this kind of structure, by changing the different but spring 14 that two ends gripping part is identical of rigidity, can change the stiffness characteristics of whole vibration damper, thus the rigidity realizing designed vibration damper is adjustable.
One end of roll adjustment sleeve 6 is threaded with guide pipe 13, its objective is the whole height that can regulate spring damping and vibration isolating device of the present invention in the scope of setting, to facilitate actual installation; After adjusting height, guide pipe 13 is fixed by four jackscrews 5 uniform by roll adjustment sleeve 6 circumferencial direction.The other end of roll adjustment sleeve 6 is rotationally connected by double-row angular contact bal bearing 17 and the bearing end universal joint cross 7 with flange, double-row angular contact bal bearing 17 is provided with the bearing baffle 16 be fixed on by screw 15 on bearing end universal joint cross 7 near the side of guide pipe 13, the opposite side of double-row angular contact bal bearing 17 is provided with circlip for hole 18, seam and circlip for hole 18 axially locating of roll adjustment sleeve 6 internal surface are passed through in the outer ring of double-row angular contact bal bearing 17, the inner ring of double-row angular contact bal bearing 17 is by the seam axially locating on bearing baffle 16 and bearing end universal joint cross 7.This double-row angular contact bal bearing 17 makes vibration damper circumferentially to rotate.
The end, one end of guide pipe 13 is inwardly provided with columniform groove 20 vertically, and this groove 20 is connected with the part of guide pipe 13 with the axis of guide 10 grafting, and groove 20 can avoid the axis of guide 10 inserted in guide pipe 13 to collide with screw 15.
Working principle of the present invention is:
Spring 14 is fixed in the large and small sleeve that can only move vertically, and be added with guiding device and damper regulation mechanism in spring 14 inside, and be added with double-row angular contact bal bearing 17 in the outer end of large sleeve 3, there are non-bearing end universal joint cross 1 and bearing end universal joint cross 7 respectively at the two ends of vibration damper.When act on vibration damper two ends component be move vertically time, spring 14 occur stretch or compression; When act on vibration damper two ends component be along the circumferential direction time, double-row angular contact bal bearing 17 plays a role and prevents spring 14 from being reversed; In time having radial component effect, the non-bearing end universal joint cross 1 at vibration damper two ends and bearing end universal joint cross 7 play a role, and can cushion.The rigidity of vibration damper is mainly determined by spring 14, and the adjustment of resistance of shock absorber is by adjustment clamp sleeve 12 position thus change it and realize the pressure of damping 11 on guide pipe 13.The present invention has six-freedom degree, and have two degrees of freedom rotated for non-bearing end universal joint cross 1, be respectively the rotary motion along middle cross axle, in like manner bearing end universal joint cross 7 has two degrees of freedom rotated equally; And double-row angular contact bal bearing 17 has a degrees of freedom rotated, and the axis of guide 10 is one-movement-freedom-degrees along the slip of guide pipe 13, adds up like this and is the six-freedom degree that spring damping and vibration isolating device of the present invention has.
Claims (10)
1. a spring damping and vibration isolating device, it is characterized in that: comprise small sleeve (2), large sleeve (3), roll adjustment sleeve (6), spring (14) and damper regulation mechanism, wherein one end of small sleeve (2) is connected with universal joint cross, one end of the other end and large sleeve (3) plugs, and relative movement vertically, guiding device is equipped with respectively in the inner space of small sleeve (2) with large sleeve (3), spring (14) and damper regulation mechanism, described guiding device comprises the axis of guide (10) and guide pipe (13), it is inner that this guide pipe (13) is arranged on large sleeve (3), one end of guide pipe (13) is passed by the other end of described large sleeve (3), be connected with the threaded one end of roll adjustment sleeve (6), the axis of guide (10) that the other end of described guide pipe (13) is inner with being arranged on small sleeve (2) plugs, and relative movement vertically, described damper regulation mechanism is arranged on the outside of the axis of guide (10) and guide pipe (13), and described spring (14) is socketed in the outside of the axis of guide (10), damper regulation mechanism and guide pipe (13), the other end of described roll adjustment sleeve (6) is rotatably connected to universal joint cross, is adjusted the whole height of described spring damping and vibration isolating device by guide pipe (13) and the length that is threaded of roll adjustment sleeve (6).
2. by spring damping and vibration isolating device according to claim 1, it is characterized in that: described damper regulation mechanism comprises damping (11) and clamp sleeve (12), wherein one end of clamp sleeve (12) is threaded with the other end of described guide pipe (13), between the other end and the axis of guide (10) of described clamp sleeve (12), be provided with damping (11), this damping (11) is positioned at the conduit mouth place of described guide pipe (13) the other end.
3., by spring damping and vibration isolating device according to claim 2, it is characterized in that: the top of described damping (11) is the frustum of hollow, and bottom is the cylindrical body of hollow; One end of described clamp sleeve (12) is shaped with internal thread, screws mutually with the outside thread of described guide pipe (13) the other end, the internal surface of the other end of clamp sleeve (12) is the conical surface, corresponding with the top of described damping (11), when clamp sleeve (12) inwardly screws with guide pipe (13), described damping (11) compacted sleeve (12) radially compresses.
4., by spring damping and vibration isolating device according to claim 1, it is characterized in that: the inside of described small sleeve (2) one end is provided with frustum type groove, one end of the axis of guide (10) is cone table shape, is placed in described frustum type groove; The other end internal surface of described large sleeve (3) and one end of guide pipe (13) are the frustum type structure of external.
5. by spring damping and vibration isolating device according to claim 4, it is characterized in that: described spring (14) is tapered spring, namely one end of spring (14) be formula of tightening up frustum type structure, be fixed between the axis of guide (10) one end and described frustum type groove, the other end of described spring (14) is the frustum type structure of external, is installed between one end of guide pipe (13) and large sleeve (3) the other end internal surface.
6., by spring damping and vibration isolating device according to claim 1, it is characterized in that: the end, one end of described guide pipe (13) is inwardly provided with groove (20) vertically, this groove (20) is connected with the part of guide pipe (13) with the axis of guide (10) grafting.
7. by spring damping and vibration isolating device according to claim 1, it is characterized in that: the outer surface of described small sleeve (2) is along the circumferential direction evenly equipped with multiple projection (19), the internal surface of described large sleeve (3) is along the circumferential direction evenly equipped with the corresponding bar-shaped trough of multiple and described projection (19).
8. by spring damping and vibration isolating device according to claim 1, it is characterized in that: the other end of described roll adjustment sleeve (6) is rotationally connected by double-row angular contact bal bearing (17) and universal joint cross.
9. by spring damping and vibration isolating device according to claim 8, it is characterized in that: described double-row angular contact bal bearing (17) is provided with near the side of guide pipe (13) bearing baffle (16) be arranged on universal joint cross, the opposite side of double-row angular contact bal bearing (17) is provided with circlip for hole (18), seam and circlip for hole (18) axially locating of roll adjustment sleeve (6) internal surface are passed through in the outer ring of described double-row angular contact bal bearing (17), the inner ring of double-row angular contact bal bearing (17) is by the seam axially locating on described bearing baffle (16) and universal joint cross.
10. by spring damping and vibration isolating device according to claim 1, it is characterized in that: the circumferencial direction of described roll adjustment sleeve (6) is evenly equipped with multiple jackscrew (5), fixed by jackscrew (5) after described guide pipe (13) is threaded with roll adjustment sleeve (6) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310319913.5A CN103410901B (en) | 2013-07-25 | 2013-07-25 | Spring damping vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310319913.5A CN103410901B (en) | 2013-07-25 | 2013-07-25 | Spring damping vibration absorber |
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| Publication Number | Publication Date |
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| CN103410901A CN103410901A (en) | 2013-11-27 |
| CN103410901B true CN103410901B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310319913.5A Active CN103410901B (en) | 2013-07-25 | 2013-07-25 | Spring damping vibration absorber |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120663B (en) * | 2014-07-31 | 2016-06-15 | 福建省岚睿工程机械有限公司 | Sweeper is automatically adjusted cleaning height devices |
| CN104565160B (en) * | 2014-10-23 | 2017-05-10 | 中国科学院高能物理研究所 | Displacement self-compensation damping mechanism of draw bar and hoisting structure of superconducting magnet |
| CN107345553B (en) * | 2017-09-07 | 2023-08-22 | 中国船舶重工集团公司第七一九研究所 | Shock-resistant swinging device for active vibration isolator |
| CN112664611B (en) * | 2020-12-24 | 2022-12-09 | 四川迈迪测控技术有限公司 | Universal damping buffer device |
| CN113847529A (en) * | 2021-09-28 | 2021-12-28 | 向帆 | Ball joint mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519050Y (en) * | 2002-01-17 | 2002-10-30 | 山东时风（集团）有限责任公司 | Vibration-damper for automotive vehicle |
| CN200977989Y (en) * | 2006-11-06 | 2007-11-21 | 刘德波 | Three-wheel automobile vibration damper |
| CN202646501U (en) * | 2012-04-25 | 2013-01-02 | 成都驹涛网络科技有限公司 | Mechanical buffer device |
| CN203374719U (en) * | 2013-07-25 | 2014-01-01 | 中国科学院沈阳自动化研究所 | Spring damping shock absorber |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10021762B4 (en) * | 2000-05-04 | 2006-03-16 | Itw-Ateco Gmbh | Air damper for a movably mounted component, in particular in automobiles |
| US20080223672A1 (en) * | 2007-03-13 | 2008-09-18 | Honda Motor Co., Ltd. | Vehicle damper of variable damping force |
| JP2011122650A (en) * | 2009-12-10 | 2011-06-23 | Jtekt Corp | Ball screw device |
-
2013
- 2013-07-25 CN CN201310319913.5A patent/CN103410901B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519050Y (en) * | 2002-01-17 | 2002-10-30 | 山东时风（集团）有限责任公司 | Vibration-damper for automotive vehicle |
| CN200977989Y (en) * | 2006-11-06 | 2007-11-21 | 刘德波 | Three-wheel automobile vibration damper |
| CN202646501U (en) * | 2012-04-25 | 2013-01-02 | 成都驹涛网络科技有限公司 | Mechanical buffer device |
| CN203374719U (en) * | 2013-07-25 | 2014-01-01 | 中国科学院沈阳自动化研究所 | Spring damping shock absorber |
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