CN105317902B - A kind of vibration isolator of replaceable spring - Google Patents
A kind of vibration isolator of replaceable spring Download PDFInfo
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- CN105317902B CN105317902B CN201510771009.7A CN201510771009A CN105317902B CN 105317902 B CN105317902 B CN 105317902B CN 201510771009 A CN201510771009 A CN 201510771009A CN 105317902 B CN105317902 B CN 105317902B
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- connecting rod
- bearing
- sliding block
- spring
- vibration isolator
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- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims description 18
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
It is an object of the invention to provide a kind of vibration isolator of replaceable spring, top bogey is connected by connecting pin with the connecting rod one and connecting rod two of lower section, and two connecting rods are connected with connecting rod three and connecting rod four respectively again by connecting pin.Together with the interconnection of connecting rod four, four one, connecting rods constitute a linkage for fork-shaped to connecting rod three.The other end of connecting rod three and connecting rod four is connected by bearing-ring device with sliding block and rolling bearing.Rolling bearing, sliding block are both placed on base.Two-layer screwed hole is devised around base, the eight of one week screwed hole is used to connect base and door in the inner part, the 12 of one week screwed hole is used to connect base and shell in the outer part.Shell gets up internal structure be all surrounded, forms a complete vibration isolator system for relative closure.The present invention can realize being convenient for changing spring, it is ensured that the service life of vibration isolator by shell and the cooperation of internal structure, be also beneficial to the care and maintenance of vibration isolator.
Description
Technical field
The present invention relates to a kind of isolation mounting.
Background technology
With continuing to develop for shipbuilding industry, the vibration problem of the plant equipment such as ship's powerplant is increasingly subject to people
Concern.Vibration not only easily causes the fatigue damage of structure, influences equipment life, can also lowering apparatus instrument measurement essence
Degree, while vibration is also inevitably generated noise, influences the normal work of operating personnel even to endanger health.So-called vibration isolation is just
It is to be connected with elasticity or damping unit between vibration source and equipment or other objects, makes most of energy that vibration source is produced by vibration isolation
Device absorbs, to reduce interference of the vibration source to equipment.A kind of adjustable vibration isolation disclosed in the patent document of CN104696410A
Although device can also realize the change of rigidity, once spring reaches service life or damages to carry out whole device dismounting
Spring is changed, this point is inconvenient for the maintenance of vibration isolator.Disclosed in the patent document of CN103939520A
A kind of passive vibration isolation device suitable for low-frequency vibration, although the requirement of static rigidity high and low dynamic rate can be met, but
It is equally to be difficult to change when spring breaks down.
The content of the invention
It is an object of the invention to provide a kind of vibration isolator of replaceable spring.
The object of the present invention is achieved like this：
A kind of vibration isolator of replaceable spring of the present invention, it is characterized in that：Including base, shell, top bearings point, connecting rod
Structure, the first sliding block, the second sliding block, the first bearing-ring device, the second bearing-ring device, bar linkage structure include connecting rod one, connecting rod two, connect
The upper end of bar three, connecting rod four, connecting rod one and connecting rod two is connected with top bearings split-phase simultaneously by the first connecting pin, connecting rod three
The middle part of middle part and connecting rod four intersected by the second connecting pin and be connected, connecting rod three is divided into the first half of connecting rod three by the second connecting pin
Divide and the latter half of connecting rod three, connecting rod four is divided into the top half of connecting rod four and the latter half of connecting rod four, connecting rod by the second connecting pin
Three top halfs are connected with connecting rod one, and the top half of connecting rod four is connected with connecting rod two, and the first bearing-ring device includes two big cylinders
With a small column, small column is between two big cylinders, and the first sliding block is fork shape, equal in two heads of fork
Through hole is provided with, small column passes through two through holes, two big cylinders to be located at two outsides of through hole, the latter half of connecting rod four respectively
It is placed on small column, two lower heads of fork are provided with cylinder shape groove, rolling bearing groove and spring is set on base
Gathering sill, cylinder shape groove and spring gathering sill are communicated, and spring are set in cylinder shape groove and spring gathering sill, in big cylinder
Upper installation rolling bearing, rolling bearing is placed in rolling bearing groove, and the bottom of fork is provided with screwed hole, is set in screwed hole
The first alignment pin is put, the middle part of the first alignment pin passes through shell, the other end of the first alignment pin to set and can be used to install nut
External screw thread；Second sliding block is identical with the structure of the first sliding block, and the second bearing-ring device is identical with the structure of the first bearing-ring device, connecting rod
Four the latter half, the first sliding block, the first bearing-ring device, the first alignment pin match and are combined into the first vibration isolation unit, the lower half of connecting rod three
Partly, the second sliding block, the second bearing-ring device, the second alignment pin match and are combined into the second vibration isolation unit, and the second vibration isolation unit is matched somebody with somebody
Conjunction mode is identical with the fit system of the first vibration isolation unit.
The present invention can also include：
1st, the length of connecting rod one, connecting rod two, the top half of connecting rod three and the top half of connecting rod four is identical.
Advantage of the invention is that：
1st, the vibration isolator designed by the present invention, by the cooperation of shell and internal structure, can realize being convenient for changing spring,
Ensure the service life of vibration isolator, be also beneficial to the care and maintenance of vibration isolator.
2nd, the present invention designed by vibration isolator can and according to the change of environment, by changing different springs so that
Change the performance parameter of vibration isolator, to adapt to different environment.
3rd, can be converted into the spring rate in horizontal direction on vertical direction by the forked link structure designed by the present invention
Equivalent stiffness, realize by changing the rigidity in horizontal direction to adjust the rigidity on vertical direction, can be later
Design process provides a kind of reference.
4th, the equivalent stiffness of vibration isolator in the vertical direction of the invention has nonlinear feature, joins in certain system
Under several, with vibration isolating effect more more preferable than linear vibration isolator.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention；
Fig. 2 is semi-cutaway of the invention；
Fig. 3 is top view of the invention；
Fig. 4 a are that slide block schematic diagram a, Fig. 4 b are that slide block schematic diagram b, Fig. 4 c are slide block schematic diagram c；
Fig. 5 a are baffle plate schematic diagram, and Fig. 5 b are C-C views；
Fig. 6 a are that base schematic diagram a, Fig. 6 b are base schematic diagram b.
Specific embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
With reference to Fig. 1~6b, the wherein parameters in such as Fig. 1, k0It is the rigidity of spring, l1It is the lower end of connecting rod three (with connecting rod
Four is identical) length, l2It is the length of connecting rod one (the upper end all same with connecting rod two, the upper end of connecting rod three and connecting rod four),
For it is initial when angle size, vibration isolator vertical direction top offset is with the relation of suffered power
The rigidity of system is to the derivative of displacement for power：
There is formula can be seen that, the rigidity of system is nonlinear change.
Fig. 2 is vibration isolator top view, it can be seen that the top bearings of vibration isolator point 5 this part are one roomy flat
Plate, occupies whole vibration isolator and overlooks area about 1/2nd.The Main Function of top bearings point 5 is to carry by vibrating isolation system simultaneously
The vibration for being produced passes to lower section vibrating isolation system.Vibration isolator is generally the equal symmetrical structure of vertical and horizontal.
The internal structure of vibration isolator is：Top bearings point 5 are a cuboids, at four angles of cuboid symmetrically
Four tapped through holes are dispersed with, can be connected with carrying platform by screw rod.Top bogey 5 and connecting rod 1 and
Connecting rod 28 is linked together simultaneously by connecting pin 16.The other end of connecting rod 1 and connecting rod 28 respectively connected the He of connecting rod 39
Connecting rod 4 10, and connecting rod 39 is together with the interconnection of connecting rod 4 10,4 connecting rods constitute a fork linkages.Between connecting rod
Connected again by connecting pin 16, and be assembled with connecting pin 16 it is a number of roll bearing, to smaller work
During friction.The other end of connecting rod 39 and connecting rod 4 10 is connected to bearing-ring device 14, and the structure of bearing-ring device 14 is two
Shaft assignment connects a less cylinder of radius in the middle of the larger identical cylinder of radius, and in order to connect miscellaneous part, one of them half
The larger cylinder in footpath is dismountable.Rolling bearing is connected on the larger cylinder of bearing-ring device radius, and connecting rod is connected to sliding block 3
On the less cylinder of radius.Rolling bearing 13 is placed in two grooves of base 1, and groove limits the motion of rolling bearing 13
Direction can only be slided along the direction of groove.Sliding block 3 is placed on the centre position of base 1, and sliding block is along base 1 when vibration isolator works
Lengthwise movement.Sliding block 3 is designed with a screwed hole, so as to the screw-in of alignment pin 12.Sliding block 3 and the upper surface band of spring gathering sill 6
There is the structure of cylindrical groove, to place spring 4, and motion to spring 4 has guide effect.
The external structure of vibration isolator is：Such as Fig. 5 a, Fig. 5 b, the approximate trapezoid of shell 2, the upper surface of shell 2 have one it is long
Square groove, after two baffle plates 2 are assembled, two grooves for cooperating can just be by the lower section of top bogey 5
Cuboid, it is ensured that 5 in the vertical direction motions of top bogey.The upper surface of the lower floor's ladder of shell 2 is rectangular hole,
Hole size is identical with the maximum surface of door 11, it is ensured that after installing shell 2, door 11 can be dismantled freely.Such as Fig. 6 a, Fig. 6 b institute
Show, inner side there are eight screwed holes being arranged symmetrically around base 1, for installing two doors 11.It is outer around base 1
Side is arranged symmetrically 12 screwed holes, to be connected with two shells 2.
When vibration isolator is subject to from exciting force on vertical direction, top bogey receives exciting force and produces and erects
Nogata to it is of reciprocating vibration.Forked link mechanism attached below can change into the equivalent stiffness in horizontal direction vertically
Equivalent stiffness on direction.So as to be controlled by the regulation in horizontal direction, the vibration problem on vertical direction is solved.
When vibration isolator changes spring, two alignment pins of screw-in symmetrical first make sliding block to base middle slip, loosen
Spring, it is ensured that internal spring is in the state of nature elongation, is then fixed the position of alignment pin with nut.Then dismantle solid
Determine eight screws of door, door is taken out, then spring is taken out, be put into suitable spring.Then door assembling is gone back again,
The nut and alignment pin on both sides are screwed out, the process for changing spring is just completed.
Designed isolation mounting includes the top bogey of cuboid, the top of displacement vibration isolator.Top bogey
Be connected with the connecting rod one and connecting rod two of lower section by connecting pin, two connecting rods again by connecting pin respectively with connecting rod three and even
Bar four is connected.Together with the interconnection of connecting rod four, four one, connecting rods constitute a linkage for fork-shaped to connecting rod three.Even
The other end of bar three and connecting rod four is connected by bearing-ring device with sliding block and rolling bearing.Device has four rolling bearings,
Two sliding blocks, are both placed on base, and are moved in the corresponding chute of base design.Two-layer spiral shell is devised around base
Pit, in the inner part the eight of one week screwed hole be used to connect base and door, in the outer part the 12 of one week screwed hole be used to connect
Connect base and shell.Trapezoidal shell gets up internal structure be all surrounded, forms a complete vibration isolator for relative closure
System.
Sliding block：It is sliding block shown in Fig. 4, sliding block is with through hole with to be connected on bearing-ring device.Sliding block be although with
Base has sliding friction, but due to the influence except self gravitation, sliding block does not have pressure directly by vertical direction,
Therefore frictional force is simultaneously little.Screwed hole is devised in the opposite side of sliding block, its effect is that, when spring is dismantled, cooperation alignment pin will be whole
Individual vibrating isolation system is fixed, and also ensures that isolation mounting will not produce displacement in vertical direction while facilitating spring to change.
Door：The door on spring is placed on, by the respective outer side edges with spring guide pad, sliding block, complete bullet is constituted
Spring groove.Door constitutes the complete housing of vibration isolator with shell, is used to protect vibration isolator internal structure.In the present invention, need to only tear open
Fall door and whole housing need not be removed, just can realize being convenient for changing for spring.
Alignment pin：Effect is engaged with nut when spring is changed, and withstands sliding block, spring is in one and is freely loosened
State, be conveniently replaceable spring.
Claims (2)
1. a kind of vibration isolator of replaceable spring, it is characterized in that：Including base, shell, top bearings point, bar linkage structure, the
One sliding block, the second sliding block, the first bearing-ring device, the second bearing-ring device, bar linkage structure include connecting rod one, connecting rod two, connecting rod three, company
The upper end of bar four, connecting rod one and connecting rod two is connected with top bearings split-phase simultaneously by the first connecting pin, the middle part of connecting rod three
Intersected by the second connecting pin with the middle part of connecting rod four and be connected, connecting rod three is divided into the top half of connecting rod three and company by the second connecting pin
The latter half of bar three, connecting rod four is divided into the top half of connecting rod four and the latter half of connecting rod four, the upper half of connecting rod three by the second connecting pin
Part is connected with connecting rod one, and the top half of connecting rod four is connected with connecting rod two, and the first bearing-ring device includes two big cylinders and one
Small column, small column is arranged between two big cylinders, and the first sliding block is fork shape, is provided with two heads of fork
Through hole, small column passes through two through holes, two big cylinders to be located at two outsides of through hole respectively, and the latter half of connecting rod four is placed on small
On cylinder, two lower heads of fork are provided with cylinder shape groove, and rolling bearing groove and spring gathering sill are set on base,
Cylinder shape groove and spring gathering sill are communicated, and spring is set in cylinder shape groove and spring gathering sill, are installed on big cylinder
Rolling bearing, rolling bearing is placed in rolling bearing groove, and the bottom of fork is provided with screwed hole, and first is set in screwed hole
Alignment pin, the middle part of the first alignment pin passes through shell, the other end of the first alignment pin to set the external screw thread that can be used for installing nut；
Second sliding block is identical with the structure of the first sliding block, and the second bearing-ring device is identical with the structure of the first bearing-ring device, the lower half of connecting rod four
Partly, the first sliding block, the first bearing-ring device, the first alignment pin match and are combined into the first vibration isolation unit, the latter half of connecting rod three, the
Two sliding blocks, the second bearing-ring device, the second alignment pin match and are combined into the second vibration isolation unit, the fit system of the second vibration isolation unit with
The fit system of the first vibration isolation unit is identical.
2. the vibration isolator of a kind of replaceable spring according to claim 1, it is characterized in that：Connecting rod one, connecting rod two, connecting rod three
The length of top half and the top half of connecting rod four is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510771009.7A CN105317902B (en) | 2015-11-12 | 2015-11-12 | A kind of vibration isolator of replaceable spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510771009.7A CN105317902B (en) | 2015-11-12 | 2015-11-12 | A kind of vibration isolator of replaceable spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105317902A CN105317902A (en) | 2016-02-10 |
| CN105317902B true CN105317902B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510771009.7A Expired - Fee Related CN105317902B (en) | 2015-11-12 | 2015-11-12 | A kind of vibration isolator of replaceable spring |
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| CN107477144A (en) * | 2017-09-15 | 2017-12-15 | 安徽合矿环境科技股份有限公司 | A kind of generator dampening assembly |
| CN108710187A (en) * | 2018-05-22 | 2018-10-26 | 安徽电信器材贸易工业有限责任公司 | A kind of universal optical cable secured adjusted tooling |
| CN109176479B (en) * | 2018-11-01 | 2021-12-24 | 合肥工业大学 | Rigidity changing device of fully-constrained flexible cable parallel robot |
| CN109372929A (en) * | 2018-12-14 | 2019-02-22 | 晋西工业集团有限责任公司 | A kind of bearing capacity adjustable shock-absorbing mechanism of full |
| CN111472262B (en) * | 2020-05-20 | 2021-12-24 | 山东永昇重工有限公司 | Steel structure bridge truss with buffering characteristic |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1499001A1 (en) * | 1986-11-05 | 1989-08-07 | Николаевский Кораблестроительный Институт Им.Адм.С.О.Макарова | Parametric support |
| CN204083050U (en) * | 2014-08-29 | 2015-01-07 | 香港理工大学深圳研究院 | Passive vibration isolation platform |
| CN204284282U (en) * | 2014-12-14 | 2015-04-22 | 三峡大学 | Friction type damper mechanism |
| CN104595403A (en) * | 2015-01-26 | 2015-05-06 | 中科院南京天文仪器有限公司 | Low-rigidity heavy-duty low-frequency double-wire rope vibration isolator |
| CN205350180U (en) * | 2015-11-12 | 2016-06-29 | 哈尔滨工程大学 | Isolator of removable spring |
-
2015
- 2015-11-12 CN CN201510771009.7A patent/CN105317902B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1499001A1 (en) * | 1986-11-05 | 1989-08-07 | Николаевский Кораблестроительный Институт Им.Адм.С.О.Макарова | Parametric support |
| CN204083050U (en) * | 2014-08-29 | 2015-01-07 | 香港理工大学深圳研究院 | Passive vibration isolation platform |
| CN204284282U (en) * | 2014-12-14 | 2015-04-22 | 三峡大学 | Friction type damper mechanism |
| CN104595403A (en) * | 2015-01-26 | 2015-05-06 | 中科院南京天文仪器有限公司 | Low-rigidity heavy-duty low-frequency double-wire rope vibration isolator |
| CN205350180U (en) * | 2015-11-12 | 2016-06-29 | 哈尔滨工程大学 | Isolator of removable spring |
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| CN105317902A (en) | 2016-02-10 |
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