CN103410901A - Spring damping vibration absorber - Google Patents

Spring damping vibration absorber Download PDF

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Publication number
CN103410901A
CN103410901A CN2013103199135A CN201310319913A CN103410901A CN 103410901 A CN103410901 A CN 103410901A CN 2013103199135 A CN2013103199135 A CN 2013103199135A CN 201310319913 A CN201310319913 A CN 201310319913A CN 103410901 A CN103410901 A CN 103410901A
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China
Prior art keywords
sleeve
spring
guide pipe
damping
guide
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CN2013103199135A
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CN103410901B (en
Inventor
刘金国
金玉章
孙澍锋
宛敏红
高强
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Shenyang Institute of Automation of CAS
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Shenyang Institute of Automation of CAS
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Priority to CN201310319913.5A priority Critical patent/CN103410901B/en
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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

A kind of spring damping and vibration isolating device
Technical field
The invention belongs to the 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, all highi degree of accuracy, long lifetime and stable vibration damper have been proposed to requirement in a lot of fields.For example, in the manned astro-engineering, for avoiding the astronaut, be in for a long time the set sports equipments of disease such as muscular atrophy that weightlessness causes and osteoporosis, can produce in use vibration; These vibration meetings impact the motion of astrovehicle, therefore need vibration damper to avoid astrovehicle to be affected.Also have, in some accurate aircraft electronics are learned the use of system vibration reduction platform, also need simultaneously the safety of vibration damper protection electronic system.
At present, the vibration damper on market has many types, such as employing hydraulic oil form, the pneumatic form of employing etc.; But their most of precision are low, and volume is larger, and also there is the risk of leakage of oil in some.Therefore be directed to the vibration damper used on situations such as aerospace engineering, high accuracy platform 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 can be regulated, rigidity can be regulated, structure height can be regulated, and has six-freedom degree, can be on aircraft.
The objective of the invention is to be achieved through the following technical solutions:
The present invention includes small sleeve, large sleeve, the roll adjustment sleeve, spring and damper regulation mechanism, wherein an end of small sleeve is connected with universal joint cross, the other end plugs with an end of large sleeve, and relative movement vertically, in the inner space of small sleeve and large sleeve, be equipped with respectively guiding device, 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, with the threaded one end of roll adjustment sleeve, be connected, the other end of described guide pipe plugs with the axis of guide that is 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, by guide pipe and the length that is threaded of roll adjustment sleeve, adjusts the whole height of described spring damping and vibration isolating device.
Wherein: described damper regulation mechanism comprises damping and clamp sleeve, wherein an end of clamp sleeve is threaded with the other end of described guide pipe, between the other end of described clamp sleeve and the axis of guide, 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 screwed, the compacted sleeve of described damping radially compressed;
The inside of described small sleeve one end is provided with the frustum type groove, and an 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 an end of guide pipe are the frustum type structure of external; Described spring is tapered spring, an end that is spring be the formula of tightening up the frustum type structure, be fixed between the axis of guide one end and described frustum type groove, the other end of described spring be external the frustum type structure, be installed between an end and large sleeve the other end internal surface of guide pipe;
One end end of described guide pipe inwardly is provided with groove vertically, and this groove is connected with the part that guide pipe and the axis of guide are pegged graft; The outer surface of described small sleeve is evenly equipped with a plurality of projections in the circumferential direction of the circle, and the internal surface of described large sleeve is evenly equipped with the corresponding bar-shaped trough of a plurality of and described projection in the circumferential direction of the circle;
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 near a side of guide pipe the bearing baffle be arranged on universal joint cross, the opposite side of double-row angular contact bal bearing is provided with circlip for hole, the outer ring of described double-row angular contact bal bearing is by seam and the circlip for hole axially locating of roll adjustment sleeve interior surface, 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 a plurality of jackscrews, and described guide pipe is fixed by jackscrew after with the roll adjustment bush whorl, being connected location.
Advantage of the present invention and good effect are:
1. the present invention has six-freedom degree, can in setting range, change by clamp sleeve the damping size of vibration damper, can change by the spring of changing different-stiffness (as different-diameter, material) the rigidity size of integral vibration damping device, can in setting range, change the whole height of vibration damper by the roll adjustment sleeve.
2. universal joint cross has been used at the two ends of vibration damper of the present invention, at one end added a double-row angular contact bal bearing, two sleeves can be along relative movement is axially arranged, the total six-freedom degree of therefore whole vibration damper one, such structural design makes vibration damper to cushion the motion of the motion perpendicular to axis and circumferencial direction, so the power be applied on spring only is axial power.
3. spring of the present invention and damper regulation mechanism have been placed on respectively the inside of sleeve, therefore the external object of having avoided spring to expose producing and the appearance of the situation of spring interference, and spring and damper regulation mechanism are placed on to inside, also kept the clean of spring and damping work, thereby improved precision and life-span.
4. the present invention does not need to use hydraulic oil, does not therefore exist the situation that hydraulic oil is revealed to occur.
The 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 be installed structural representation of mode of the spring of state and bearing;
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 the roll adjustment sleeve, and 7 is the bearing end universal joint cross, and 8 is screw, 9 is screw, and 10 is the axis of guide, and 11 are 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
The invention will be further described below in conjunction with accompanying drawing.
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, i.e. an end sealing of small sleeve 2, 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, is being connected between non-bearing end universal joint cross 1 and small sleeve 2 to realize by uniform four screws 8 of circumferencial direction.The other end of small sleeve 2 plugs with an end of large sleeve 3, as shown in Figure 3, outer surface at small sleeve 2 the other end ports is evenly equipped with a plurality of rectangular projections 19 in the circumferential direction of the circle, the internal surface of large sleeve 3 one end ports is evenly equipped with a plurality of bar-shaped troughs corresponding with projection 19 in the circumferential direction of the circle, can realize that large sleeve 3 is with respect to small sleeve 2 slip vertically, but relatively rotating without circumferencial direction.
In the inner space of small sleeve 2 and large sleeve 3, be equipped with respectively guiding device, spring 14 and damper regulation mechanism, 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 ends by screw 9, the inside of small sleeve 2 one ends is provided with a frustum type groove (axial cross section that is groove is " eight " font), one end of the axis of guide 10 is cone table shape, corresponding with the frustum type groove in small sleeve 2 one ends, be placed in this frustum type groove.Guide pipe 13 is by affixed with large sleeve 3 at uniform four screws 4 of large sleeve 3 circumferencial directions, one end of guide pipe 13 is passed, is connected with the threaded one end of roll adjustment sleeve 6 by the other end of large sleeve 3, the other end of small sleeve 2 is plugged in the other end of guide pipe 13, and relative movement vertically.Damper regulation mechanism is arranged on the outside of guide pipe 13 the other ends, 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 ends, and the screw thread that an end inside of clamp sleeve 12 has preseting length screws mutually with the external screw-thread of guide pipe 13; Between the other end of clamp sleeve 12 and the axis of guide 10, be provided with damping 11, this damping 11 is positioned at the conduit mouth place of guide pipe 13 the other ends.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 and guide pipe 13 inwardly screw, clamp sleeve 12 can radially compress damping 11, when clamp sleeve 12 screws out, between damping 11 and the axis of guide 10, pressure will reduce, pressure between damping 11 and guide pipe 10 will change like this, thereby affects the damping characteristic of whole spring damping and vibration isolating device, realizes that the damping of designed vibration damper can be regulated.
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 an end of guide pipe 13 are the frustum type structure of external, and namely axial cross section is " eight " font and large to the change of the other end opening by an end of large sleeve 3, spring 14 is tapered spring, be that two ends are frustum type, centre is cylinder, one end of spring 14 is that (the end axial cross section that the described formula of tightening up is spring 14 is " eight " font for the frustum type structure of the formula of tightening up, and opening dwindles to the closed end of small sleeve 2 gradually), be fixed between an end and the frustum type groove in small sleeve 2 of the axis of guide 10 cone table shapes, the other end of spring 14 is the frustum type structure (the other end internal surface of described external and large sleeve 3 and an end shape of guide pipe 13 are identical) of external, be installed between an end and large sleeve 3 the other end internal surfaces of guide pipe 13.One end of spring 14 be the formula of tightening up, the other end is external, adopting this shape is in order to make comparatively securely spring 14 can be installed on the inside of vibration damper, and can spring 14 for convenience detach by this kind structure, by changing the rigidity difference but the identical spring 14 of two ends gripping part, can change the stiffness characteristics of whole vibration damper, thereby realize that the rigidity of designed vibration damper can regulate.
One end of roll adjustment sleeve 6 is threaded with guide pipe 13, its objective is and can in the scope of setting, regulate the whole height of spring damping and vibration isolating device of the present invention, to facilitate actual installation; After adjusting height, by four jackscrews 5 that roll adjustment sleeve 6 circumferencial directions are uniform, that guide pipe 13 is fixing.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, one side of double-row angular contact bal bearing 17 close guide pipes 13 is provided with by screw 15 and is fixed on the bearing baffle 16 on bearing end universal joint cross 7, the opposite side of double-row angular contact bal bearing 17 is provided with circlip for hole 18, the outer ring of double-row angular contact bal bearing 17 is by seam and circlip for hole 18 axially locating of roll adjustment sleeve 6 internal surfaces, 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 to rotate along circumferencial direction.
One end end of guide pipe 13 inwardly is provided with columniform groove 20 vertically, and this groove 20 is connected with the part that guide pipe 13 and the axis of guide 10 are pegged graft, and the axis of guide 10 that groove 20 can be avoided inserting in guide pipe 13 bumps 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, at the two ends of vibration damper, non-bearing end universal joint cross 1 and bearing end universal joint cross 7 are arranged respectively.When acting on vibration damper two ends component for motion vertically, spring 14 occurs to stretch or compression; When acting on vibration damper two ends component in the circumferential direction of the circle the time, double-row angular contact bal bearing 17 plays a role and prevents that spring 14 from being reversed; When the radial component effect was arranged, non-bearing end universal joint cross 1 and the bearing end universal joint cross 7 at vibration damper two ends played a role, and can cushion.The rigidity of vibration damper mainly determines by spring 14, thereby and the adjusting of resistance of shock absorber changes its pressure to damping 11 and realizes by regulating clamp sleeve 12 position on guide pipe 13.The present invention has six-freedom degree, for non-bearing end universal joint cross 1, has the degrees of freedom of two rotations, is respectively along the rotatablely moving of middle cross axle, and in like manner bearing end universal joint cross 7 has the degrees of freedom of two rotations equally; And double-row angular contact bal bearing 17 has the degrees of freedom of a rotation, 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. 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 an end of small sleeve (2) is connected with universal joint cross, the other end plugs with an end of large sleeve (3), and relative movement vertically, in the inner space of small sleeve (2) and large sleeve (3), be equipped with respectively guiding device, spring (14) and damper regulation mechanism, described guiding device comprises the axis of guide (10) and guide pipe (13), this guide pipe (13) is arranged on large sleeve (3) inside, one end of guide pipe (13) is passed by the other end of described large sleeve (3), with the threaded one end of roll adjustment sleeve (6), be connected, the other end of described guide pipe (13) axis of guide (10) 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, by guide pipe (13) and the length that is threaded of roll adjustment sleeve (6), adjusts the whole height of described spring damping and vibration isolating device.
2. by spring damping and vibration isolating device claimed in claim 1, it is characterized in that: described damper regulation mechanism comprises damping (11) and clamp sleeve (12), wherein an end of clamp sleeve (12) is threaded with the other end of described guide pipe (13), between the other end of described clamp sleeve (12) and the axis of guide (10), 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 claimed in 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), while inwardly screwing, the compacted sleeve of described damping (11) (12) radially compresses when clamp sleeve (12) and guide pipe (13).
4. by spring damping and vibration isolating device claimed in claim 1, it is characterized in that: the inside of described small sleeve (2) one ends is provided with the frustum type groove, and an end of the axis of guide (10) is cone table shape, is placed in described frustum type groove; One end of the other end internal surface of described large sleeve (3) and guide pipe (13) is the frustum type structure of external.
5. by spring damping and vibration isolating device claimed in claim 4, it is characterized in that: described spring (14) is tapered spring, an end that is spring (14) be the formula of tightening up the frustum type structure, be fixed between the axis of guide (10) one ends and described frustum type groove, the other end of described spring (14) is the frustum type structure of external, be installed between an end and large sleeve (3) the other end internal surface of guide pipe (13).
6. by spring damping and vibration isolating device claimed in claim 1, it is characterized in that: an end end of described guide pipe (13) inwardly is provided with groove (20) vertically, and this groove (20) is connected with the part that guide pipe (13) and the axis of guide (10) are pegged graft.
7. by spring damping and vibration isolating device claimed in claim 1, it is characterized in that: the outer surface of described small sleeve (2) is evenly equipped with a plurality of projections (19) in the circumferential direction of the circle, and the internal surface of described large sleeve (3) is evenly equipped with the corresponding bar-shaped trough of a plurality of and described projection (19) in the circumferential direction of the circle.
8. by spring damping and vibration isolating device claimed in 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 claimed in claim 8, it is characterized in that: described double-row angular contact bal bearing (17) is provided with near a 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), the outer ring of described double-row angular contact bal bearing (17) is by seam and circlip for hole (18) axially locating of roll adjustment sleeve (6) internal surface, 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 claimed in claim 1, it is characterized in that: the circumferencial direction of described roll adjustment sleeve (6) is evenly equipped with a plurality of jackscrews (5), and described guide pipe (13) is threaded with roll adjustment sleeve (6), and location is rear to be fixed by jackscrew (5).
CN201310319913.5A 2013-07-25 2013-07-25 Spring damping vibration absorber Active CN103410901B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120663A (en) * 2014-07-31 2014-10-29 福建省岚睿工程机械有限公司 Automatic sweeping height adjusting device for sweeper
CN104565160A (en) * 2014-10-23 2015-04-29 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
CN107345553A (en) * 2017-09-07 2017-11-14 中国船舶重工集团公司第七〇九研究所 A kind of shock resistance rocking equipment for active vibration insulator
CN112664611A (en) * 2020-12-24 2021-04-16 四川迈迪测控技术有限公司 Universal damping buffer device
CN114811348A (en) * 2021-09-28 2022-07-29 向帆 Ball joint mechanism

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US20010038174A1 (en) * 2000-05-04 2001-11-08 Itw Automotive Products Gmbh & Co. Kg Air damper for a movably supported structural part, in particular in automobiles
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
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
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010038174A1 (en) * 2000-05-04 2001-11-08 Itw Automotive Products Gmbh & Co. Kg Air damper for a movably supported structural part, in particular in automobiles
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
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
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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120663A (en) * 2014-07-31 2014-10-29 福建省岚睿工程机械有限公司 Automatic sweeping height adjusting device for sweeper
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
CN104565160A (en) * 2014-10-23 2015-04-29 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
CN107345553A (en) * 2017-09-07 2017-11-14 中国船舶重工集团公司第七〇九研究所 A kind of shock resistance rocking equipment for active vibration insulator
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
CN112664611A (en) * 2020-12-24 2021-04-16 四川迈迪测控技术有限公司 Universal damping buffer device
CN112664611B (en) * 2020-12-24 2022-12-09 四川迈迪测控技术有限公司 Universal damping buffer device
CN114811348A (en) * 2021-09-28 2022-07-29 向帆 Ball joint mechanism
CN114811348B (en) * 2021-09-28 2024-05-24 向帆 Ball joint mechanism

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