CN105889386B - A kind of dry friction type three-dimensional vibration isolation buffer for resisting strong impact - Google Patents
A kind of dry friction type three-dimensional vibration isolation buffer for resisting strong impact Download PDFInfo
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- CN105889386B CN105889386B CN201410696537.6A CN201410696537A CN105889386B CN 105889386 B CN105889386 B CN 105889386B CN 201410696537 A CN201410696537 A CN 201410696537A CN 105889386 B CN105889386 B CN 105889386B
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- upper bush
- bottom plate
- vibration
- mesh members
- shell body
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Abstract
The invention discloses a kind of all-metal dry friction type three-dimensional vibration isolation buffer for resisting strong impact, the isolation damper is used as fixed component using shell body and inner support cylinder, movable part is used as using upper bush, dish-shaped woven wire damping component is equipped between shell body and upper bush, provides when isolation damper is subject to extraneous vibration to encourage and is vertically acted on to horizontal direction vibration isolation；Woven wire buffer component is equipped with outside interior support tube and outside bottom plate bulge loop, when being subject to extraneous strong excited by impact, upper bush is contacted with woven wire buffer component to be played vertically and horizontally to cushioning effect；Helical spring between adjusting bolt and bottom plate provides support by device for vibration insutation and buffering and the effect of reset.This isolation damper can realize three-dimensional vibration isolation, bear thump vibration, suitable for the anti-vibration and shock field under off-road vehicle or extreme operating condition.
Description
Technical field
The present invention relates to a kind of mechanical oscillation anti-vibration and shock field, and in particular to a kind of armored vehicle vehicle-mounted instrument equipment
Three-dimensional vibration isolation buffer for resisting strong impact.
Background technology
With the continuous progress of science and technology, the mobility of armored vehicle is significantly enhanced.Armored vehicle is being run over
Cheng Zhong, the vibration at each position of the car body as caused by engine, transmission system is bigger, its vibration frequency is concentrated mainly on medium-high frequency
Section；Meanwhile vibrational excitation is transferred to car body by road roughness by behavioral system, its vibration frequency is concentrated mainly on middle low frequency
Section.But except normal cross-country road travels, armored vehicle will also use under extreme environmental condition, such as Crossing ditch and
The barriers such as parapet, quickly through big rise and fall landform, carry out artillery shooting, by the weapon attackings such as land mine and carry out machine
During dynamic air-drop, armored vehicle will bear abnormal strong impact vibration.Under these extreme use conditions, vehicle electronic device
Very severe with the mechanical environment residing for instrument, thump vibration easily makes instrument and equipment that various failures occur.Seriously affect
The use reliability of instrument and equipment.
Since the operating environment of armored vehicle is various, the vibration environment of vehicle electronic device is also extremely complex, therefore to institute
The vibration reducing measure taken it is also proposed the requirement of higher, both needed in cross-country road normally travel vibrational excitation carry out every
Shake, and require to encourage into row buffering the thump under extreme use condition.Meanwhile armored vehicle is in the road surface row of big rise and fall
When sailing, in addition to vertical vibration, its front and rear and left and right Horizontal Vibration also can not be ignored, particularly artillery shooting or by
During weapon side attack, its horizontal direction is excited by impact will very acutely, and this requires vibration isolator is provided simultaneously with vertically and horizontally
Three-dimensional vibration isolation cushion performance.
Currently used vibration isolator mainly has damping rubber vibration isolator, spring-like vibration isolator, steel-wire isolator and does
Rub class vibration isolator etc..Due to the special use condition of armored vehicle and working environment, answering for some of vibration isolators is limited
With.For example in the working environment of 40 DEG C of low temperature, the damping property and service life of rubber vibration isolator will be subject to very big shadow
Ring, and easily there is aging phenomenon in itself in elastomeric material, therefore it is not suitable for armored vehicle field；Helical spring or dish-shaped bullet
The damping of spring class vibration isolator is smaller, can meet buffer requirements, but damping property is poor；And armored vehicle inner space is limited, body
The larger steel-wire isolator of product is also subject to a definite limitation.It is secondary or real by the friction between wire by the friction of structure
The dry friction class vibration isolator of existing dry-friction damping vibration isolation, due to the influence from environment temperature, damping capacity is excellent, volume compared with
It is small, therefore it is more suitable for the vibration isolation field of armored vehicle mobile unit.
In existing vibration isolator, majority is unidirectional vibration isolator, its horizontal direction rigidity is larger in practical applications, vibration isolation and
Cushion performance is weaker.By retrieving, to find that some three-way vibration isolating devices can be realized for relatively low vibrational excitation good vibration isolation
Can, and then consider deficiency for thump excitation.Patent of the present invention at the same time consider three directions under relatively low oscillation intensity every
Cushion performance under performance of shaking and thump incentive environment, it is special using the non-linear rigidity and damping of woven wire damping member
Property, to realize the anti-vibration and shock requirement under complex vibration environment.
The content of the invention
The present invention is for the purpose of taking into account the buffer requirements under damping requirements and thump excitation under conventional vibration environment, base
In the non-linear rigidity and dry friction damping characteristics of woven wire damping member, there is provided a kind of all-metal dry friction type three-dimensional resists
Thump isolation damper.
Isolation damper proposed by the present invention includes shell body, upper bush, clamp nut, adjusting bolt, top baffle, bottom
Plate, inner support cylinder, support spring and woven wire damping member.The isolation damper is mainly made of three components：Fixed part
Part, movable part and anti-vibration and shock component.Fixed component includes shell body, bottom plate and inner support cylinder.Its bottom plate passes through screw thread
Shell body bottom is fastened on, inner support cylinder, which is connected through a screw thread, to be fixed in the middle part of bottom plate in boss internal thread hole；Movable part
Part includes upper bush, clamp nut, adjusting bolt and top baffle, and wherein adjusting bolt lower part is threadedly coupled with shell body, fastening
Nut is threadedly attached at the top of adjusting bolt, and is fastenedly connected with upper bush, and annular top baffle is equipped with outside upper bush,
Contacted with shell body inner top surface；Anti-vibration and shock component includes support spring, cylindrical metal silk screen component, endless metal silk screen structure
Part, dish-shaped wire mesh members, wherein support spring is helical steel springs, and bottom is pressed in the middle part of bottom plate, by inner support
Cylinder constrains its position, and top withstands on adjusting bolt lower edge, its position, four dish-shaped woven wires are constrained by upper bush intermediate throughholes
Component is symmetrically distributed in the both sides up and down of upper bush bulge loop, and cylindrical metal silk screen component is sleeved on outside inner support cylinder, and bottom is tight
Paste bottom plate raised head face, endless metal mesh members are sleeved on bottom plate outside the boss, be close to bottom plate and with dish-shaped woven wire structure
Part and the contact of cylindrical metal silk screen component.
The effect of support spring of the present invention is supported by device for vibration insutation, and provides the reply after deviateing equilbrium position
Power, using Low rigidity helical spring, to realize resonant frequency relatively low near equipoise and good vibration isolating effect.
Three kinds of wire mesh members of different shapes of the present invention realize different functions respectively：Dish-shaped woven wire
The main function of component is to provide the dry-friction damping of the extraneous vibration energy for three axial directions that dissipate；Cylindrical metal silk screen component
Main function be buffer level to thump encourage；The main function of endless metal mesh members be buffering vertical to strong punching
Hit excitation.
The dish-shaped wire mesh members, are formed using the stainless steel wire molding of diameter 0.15mm or 0.2mm.Its advantage
Horizontal direction rigidity with it is vertical substantially suitable to rigidity, avoid the shortcomings that rectangular metal mesh members horizontal direction rigidity is larger.
The tubular and endless metal mesh members, using the stainless steel wire molding of a diameter of 0.3mm or 0.4mm
Into.When upper bush is in equipoise, have between tubular and endless metal mesh members and upper bush inner wall and lower face
Appropriate gap, when extraneous vibrational excitation is smaller, upper bush in horizontal direction and vertically to not with tubular and endless metal silk
Net component contacts；Only when isolation damper is subject to extraneous thump, upper bush horizontally or vertically increases to displacement, by tubular and
Endless metal mesh members provide horizontal direction and vertically to cushioning effects.Wire mesh members not only provide in deformation process
Dry-friction damping, also has gradually hard non-linear rigidity, so as to constrain the displacement of upper bush under thump effect so that quilt
Device for vibration insutation is not to collide with surrounding objects because displacement is excessive.
The pre compressed magnitude of heretofore described dish-shaped wire mesh members and the equipoise of upper bush have adjustable
Save function.The pre compressed magnitude of dish-shaped wire mesh members can be adjusted by the screw thread between bottom plate and shell body, upper set
The equipoise of cylinder can be adjusted by adjusting bolt.
Heretofore described top baffle can not only prevent the foreign matters such as fluid, impurity from entering wire mesh inner, and thus
The damping capacity of woven wire is influenced, and can play the role of constraining upper strata dish woven wire so that on upper bush bulge loop
The wire mesh members of lower both sides have identical deformation, to provide symmetrical rigidity and damping force.
The advantage of the invention is that：
1st, the buffer requirements under the damping requirements and thump excitation under conventional vibration environment can be taken into account；
2nd, possess the axial vibration isolation of good horizontal and vertical three and cushion performance；
3rd, all it is made of metal material, is not easy to be influenced by ambient temperature, performance is stable, reliable, works the longevity
Life is longer.
Brief description of the drawings
Fig. 1 is the basic block diagram of isolation damper of the present invention.
Fig. 2 is the top view of isolation damper of the present invention.
In figure, 1 is adjusting bolt, and 2 be clamp nut, and 3 be upper bush, and 4 be top baffle, and 5 be shell body, and 6 be bottom plate, 7
It is support spring for inner support cylinder, 8,9 be cylindrical metal silk screen component, and 10 be endless metal mesh members, and 11 be dish-shaped metal
Mesh members.
Embodiment
The embodiment of the present invention is described in detail below, the present embodiment is using technical solution of the present invention before
Carry, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to the present embodiment.
The concrete structure of isolation damper described in the present embodiment includes：It is made of shell body 5, bottom plate 6 and inner support cylinder 7
Fixed component；The movable part being made of upper bush 3, clamp nut 2, adjusting bolt 1 and top baffle 4；By support spring 8, cylinder
The anti-vibration and shock component that shape wire mesh members 9, endless metal mesh members 10, dish-shaped wire mesh members 11 form.
Fixed component is connected by four through holes of 5 lower edge of shell body by bolt with pedestal, wherein, bottom plate 6 passes through spiral shell
Line is connected with 5 bottom surface of shell body, and 7 lower part of inner support cylinder and the internal thread of 6 upper boss of bottom plate are connected.
Movable part by the internal thread of adjusting bolt 1 with being connected by device for vibration insutation, wherein, adjusting bolt 1 passes through outer spiral shell
Line is connected with the upper internal threaded of upper bush 3, and clamp nut 2 is connected with 1 external screw thread top of adjusting bolt, and is close to upper bush 3
Top end face, top baffle 4 is sleeved on the outside of upper bush 3, and is close to 5 inner top surface of shell body.
Anti-vibration and shock component is installed between fixed component and movable part, wherein, 8 bottom of support spring is pressed in bottom plate 6
Middle part, its position is constrained by inner support cylinder 7,8 top of support spring withstands on 1 lower edge of adjusting bolt, among upper bush 3
Through hole constrains its position；Four dish-shaped wire mesh members 11 are symmetrically sleeved on the both sides up and down of 3 bulge loop of upper bush；Cylindrical metal
Mesh members 9 are sleeved on outside inner support cylinder 7, and 6 raised head face of bottom plate is close in bottom；Endless metal mesh members 10 are sleeved on bottom
6 outside the boss of plate, is close to 6 top surface of bottom plate and is contacted with dish-shaped wire mesh members 11 and cylindrical metal silk screen component 10.
The assembling of each component of the present invention and adjustment flow are：
The 1st, two dish-shaped wire mesh members 11 and top baffle 4 are sleeved on to the top of 3 bulge loop of upper bush successively, by one
Dish-shaped wire mesh members 11 are sleeved on the lower part of 3 bulge loop of upper bush.
2nd, the upper bush 3 installed will be covered inside bottom loading shell body 5.
3rd, inner support cylinder 7 is connected in 6 intermediate flange of bottom plate by screw thread, then by 10 sets of endless metal mesh members
Mounted in 6 flange outer sides of bottom plate, cylindrical metal silk screen component 9 is sleeved on to the outside of inner support cylinder 7, then by a remaining dish
Wire mesh members 11 are sleeved on the outside of endless metal mesh members 10.
4th, the bottom plate 6 installed and inner support cylinder 7 will be covered from bottom to load inside shell body 5, compresses dish-shaped woven wire structure
Part 11, then screws in bottom plate 6 in the screw thread of 5 bottom of shell body, high according to inner space shared by dish-shaped wire mesh members 11
Degree, is adjusted dish-shaped wire mesh members 11 to the pre compressed magnitude mutually fitted with load by bottom plate 6, and by bottom plate 6 and shell body 5
Relative position sealing.
5th, support spring 8 is loaded in inner support cylinder 7 from the top of upper bush 3, then will supports bullet with 1 lower edge of adjusting bolt
Spring 8 compresses downwards, and screws in upper bush 3；The depth that adjusting bolt 1 screws in upper bush 3 is adjusted on forcing press so that upper bush
3 when being subject to nominal dead weight, and 3 bulge loop of upper bush is in the middle position of four groups of dish woven wire components；Finally
Clamp nut 2 is tightened in adjusting bolt 1, and will both relative position sealings.
In the present embodiment, according to by the magnitude of load of device for vibration insutation, the firm of matched support spring may be selected
Degree and length, to realize optimal vibration isolating effect.Replace different support springs, wire mesh members and isolation damper knot
Structure size is, it can be achieved that the isolation damper of normal load seriation.
The present invention provides a kind of thinking and preferred embodiment of dry friction type vibration isolation buffer for resisting strong impact, but should
Recognize that foregoing description is not considered as limitation of the present invention.Part modification and improvement under thinking of the present invention and principle
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of dry friction type three-dimensional vibration isolation buffer for resisting strong impact, including shell body (5), upper bush (3), clamp nut (2),
Adjusting bolt (1), bottom plate (6), inner support cylinder (7), support spring (8), dish-shaped wire mesh members (11), cylindrical metal silk screen
Component (9) and endless metal mesh members (10)；The isolation damper is made with shell body (5), bottom plate (6) and inner support cylinder (7)
For fixed component, bottom plate (6), which is connected through a screw thread, is fixed on shell body (5) bottom, and inner support cylinder (7) is connected through a screw thread fixation
In the boss internal thread hole of bottom plate (6) middle part；Adjusting bolt (1) lower part is threadedly coupled with upper bush (3), and clamp nut (2) is logical
Cross and be threaded at the top of adjusting bolt (1), and be fastenedly connected with upper bush (3), fended off in upper bush (3) outside equipped with annular
Plate (4), contacts with shell body (5) top inner side, support spring (8) is equipped between adjusting bolt (1) and bottom plate (6), positioned at interior
In support tube (7)；Dish-shaped wire mesh members (11) are equipped between upper bush (3) outside and shell body (5), in upper bush
(3) both sides are symmetrical up and down for lower part bulge loop, cylindrical metal silk screen component (9) are equipped with outside interior support tube (7), in bottom plate
(6) endless metal mesh members (10) are equipped between middle part outside the boss and dish-shaped wire mesh members (11).
2. dry friction type three-dimensional vibration isolation buffer for resisting strong impact according to claim 1, it is characterised in that：The upper bush
(3) exterior damping element is the dish-shaped wire mesh members of multilayer symmetric distribution, its pre compressed magnitude can be adjusted by bottom plate (6)
Section.
3. dry friction type three-dimensional vibration isolation buffer for resisting strong impact according to claim 1, it is characterised in that：The upper bush
(3) working depth is adjusted by adjusting bolt (1) and clamp nut (2).
4. dry friction type three-dimensional vibration isolation buffer for resisting strong impact according to claim 1, it is characterised in that：The tubular gold
Belong to mesh members (9) and be set in inner support drum outer wall, do not contacted between inner wall and inner top surface with upper bush (3), centre is left suitable
Work as gap.
5. dry friction type three-dimensional vibration isolation buffer for resisting strong impact according to claim 1, it is characterised in that：The annular gold
Suitable gap is left between category mesh members (10) and upper bush (3) lower edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696537.6A CN105889386B (en) | 2014-11-28 | 2014-11-28 | A kind of dry friction type three-dimensional vibration isolation buffer for resisting strong impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696537.6A CN105889386B (en) | 2014-11-28 | 2014-11-28 | A kind of dry friction type three-dimensional vibration isolation buffer for resisting strong impact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105889386A CN105889386A (en) | 2016-08-24 |
| CN105889386B true CN105889386B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410696537.6A Expired - Fee Related CN105889386B (en) | 2014-11-28 | 2014-11-28 | A kind of dry friction type three-dimensional vibration isolation buffer for resisting strong impact |
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| CN113482164B (en) * | 2021-07-08 | 2022-06-07 | 中铁大桥局集团有限公司 | Self-adaptive variable-rigidity three-dimensional shock isolation device |
| CN114321270B (en) * | 2021-11-30 | 2024-05-28 | 湖南航天机电设备与特种材料研究所 | Variable parameter rubber shock absorber for inertial mass |
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| CN203308991U (en) * | 2013-06-06 | 2013-11-27 | 南京捷诺环境技术有限公司 | Composite spring vibration isolator with adjustable damping |
| CN103697241A (en) * | 2013-12-11 | 2014-04-02 | 上海交通大学 | Metal rubber-disc spring full metal composite hanging bracket for vibration isolation and impact resistance of pipeline |
| CN203702979U (en) * | 2013-12-04 | 2014-07-09 | 中国飞机强度研究所 | Wire mesh vibration isolator with independent damping |
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Patent Citations (6)
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|---|---|---|---|---|
| CN1514146A (en) * | 2003-04-11 | 2004-07-21 | 哈尔滨工业大学 | Non linear dry friction damping shock absorber |
| CN201739411U (en) * | 2009-12-23 | 2011-02-09 | 中国飞机强度研究所 | Bidirectional independent rigidity wire mesh vibration isolator |
| CN103161865A (en) * | 2013-03-15 | 2013-06-19 | 重庆大学 | Lock bead type vibration isolation bumper without harmonic peaks in three directions |
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| CN105889386A (en) | 2016-08-24 |
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