CN104791413A - Spring built-in type anti-resonance vibration abatement device - Google Patents
Spring built-in type anti-resonance vibration abatement device Download PDFInfo
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- CN104791413A CN104791413A CN201510206047.8A CN201510206047A CN104791413A CN 104791413 A CN104791413 A CN 104791413A CN 201510206047 A CN201510206047 A CN 201510206047A CN 104791413 A CN104791413 A CN 104791413A
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- plate
- type anti
- vibration
- support frame
- mass block
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A spring built-in type anti-resonance vibration abatement device comprises a supporting frame and a spring system connected with bearings of the supporting frame, according to the device, steel clamping plates, mass blocks and the spring system are connected through four bolt components installed at the periphery of the device, wherein the spring system is composed of a middle spring plate and two side spring plates, the right side of the middle spring plate is connected with the supporting frame through the bearings, the left side of the middle spring plate is connected with the mass blocks, correspondingly, the left sides of the two side spring plates are connected with the supporting frame, and the right sides of the side spring plates are connected with the mass blocks. According to the spring system of the device, the constant-thickness and variable cross-section design is adopted, the lateral displacement of the mass blocks is restrained, mass vibrators are made to have a lateral vibration attenuation effect through the three spring plates, and the problems of performance reduction, vibration attenuation failure and the like due to the fact that the lateral rigidity of springs is not enough are avoided.
Description
Technical field
The present invention relates to structural vibration reduction/Vibration Absorbing System Design field, particularly relate to a kind of anti-resonance vibration damping equipment of helicopter.
Background technique
Adopting anti-resonance principle to carry out vibration damping is a kind of classics, ripe design method, mainly for the vibration damping/Vibration Absorbing System Design of single-frequency.For the anti-resonance Vibration Absorption Designing of helicopter, main types has quality-beam type, mass-spring type etc., and what current domestic helicopter used is still imitated external product, lacks the product of autonomous innovation.
In correlation technique, quality-cantilever type bump leveller requirements of installation space is large, easily loses efficacy by the impact connecting support stiffness and manufacturing error, and connection position stress is concentrated, on-the-spot adjustment inconvenience; Mass-spring type requirements of installation space is comparatively large, and spring lateral rigidity is low, side direction inertial force can cause the excessive displacement of side direction make along spring shaft to vibration damping lost efficacy.
Summary of the invention
The present invention proposes a kind of internal inserted spring type anti-resonance equipment for inhibiting of vibration, it is the anti-resonance equipment for inhibiting of vibration of a kind of compact structure utilizing anti-resonance vibration attenuation mechanism to design, require higher and higher to manufacturing required precision to solve support stiffness, the problems such as the hydraulic performance decline avoiding spring lateral rigidity deficiency to bring or vibration damping inefficacy.
The latch plate that this device comprises support frame and is connected with support frame bearing, all there is a mass block the upper and lower both sides of latch plate, with steel clamp plate outside mass block, upper steel clamp plate, block of improving quality, latch plate, lower mass block are connected with lower steel clamp plate by four bolt assemblies that described internal inserted spring type anti-resonance equipment for inhibiting of vibration is installed by surrounding from top to bottom successively;
Wherein, latch plate adopts the equal thickness variable cross section design be made up of one block of middle springs plate and two side latch plates, be connected by bearing with support frame on the right side of middle springs plate, pass on left two bolt assemblies to be connected with mass block, correspond, the left side of two side latch plates is connected by bearing with support frame, and right side is connected with mass block by two bolt assemblies;
In order to obtain the design frequency of needs, change the rigidity of latch plate by changing latch plate boundary dimension, in addition, latch plate adopts variable cross section design, effectively can suppress the Side movement of mass block;
On the right side of support frame, neutral position is fixed with a bearing, be connected with middle springs plate by rocking arm, both sides, left side respectively have a bearing to be connected with two side latch plates, and the Main Function of support frame is separated whole Vibration Suppression System and basis, and the motion for mass block provides enough spaces; On the other hand, support frame is bolted place to be damped, and the load transmitted from basis is passed to vibration system, for the ease of the assembling of bump leveller, alleviates the associated mass of vibration damper, and support frame adopts open frame structure.
Preferably, described device at least comprises two blocks of steel clamp plates, and two pieces of upper and lower steel frame plates for clamping mass block, and carry out Mass adjust-ment by unnecessary steel plate.
In above-mentioned either a program preferably, described mass block adopts density material that is large, that easily process, further preferred plumbous material, mass block is the main motion parts of vibration damper, design frequency one timing, the scope planted agent allowed in space increases the quality of mass block as far as possible, so not only can improve the energy that bump leveller absorbs, the bandwidth of the effective frequency of okperation of bump leveller can also be increased, reduce excitation force produces resonance probability by system during disturbance.
In above-mentioned either a program preferably, described mass block is made up of steel.
In above-mentioned either a program preferably, described mass block and latch plate junction surface are inclined-plane, ensure that latch plate has enough moving displacements, and latch plate and mass block join domain are with small boss.
Key point of the present invention:
1) adopt embedded mass-spring system, the form that support system adopts bearing to connect, this configuration has compact structure, effectively can reduce the impact of alignment error;
2) spring system is made up of three blocks of tapered spring plates, in order to obtain the design frequency of needs, changes the rigidity of latch plate by changing latch plate boundary dimension.In addition, latch plate adopts variable cross section design, suppresses the Side movement of mass block;
3) mass block adopts plumbous material, is connected with latch plate by bolt, increases the bandwidth of the effective frequency of okperation of bump leveller.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment according to internal inserted spring type anti-resonance equipment for inhibiting of vibration of the present invention.
Fig. 2 is parts pie graph embodiment illustrated in fig. 1.
Wherein, 1 is latch plate, and 2 is quality oscillator, and 3 is support frame, and 4 is bearing, and 5 is rocking arm, and 2-1a is upper steel clamp plate, and 2-1b is lower steel clamp plate, and 2-2a is block of improving quality, and 2-2b is lower mass block.
Embodiment
Below in conjunction with accompanying drawing, internal inserted spring type anti-resonance equipment for inhibiting of vibration of the present invention is described in further details.
Require higher and higher to manufacturing required precision for solving support stiffness, the problems such as the hydraulic performance decline avoiding spring lateral rigidity deficiency to bring or vibration damping inefficacy.The internal inserted spring type anti-resonance equipment for inhibiting of vibration of a kind of compact structure that the present invention utilizes anti-resonance vibration attenuation mechanism to design, the latch plate 1 comprising support frame 3 and be connected with support frame 3 bearing, all there is a mass block latch plate about 1 both sides, with steel clamp plate outside mass block, upper steel clamp plate 2-1a, the block 2-2a that improves quality, latch plate 1, lower mass block 2-2b are connected with lower steel clamp plate 2-1b by four bolt assemblies that described internal inserted spring type anti-resonance equipment for inhibiting of vibration is installed by surrounding from top to bottom successively;
Wherein, latch plate 1 adopts the equal thickness variable cross section design be made up of one block of middle springs plate and two side latch plates, be connected by bearing 4 with support frame 3 on the right side of middle springs plate, pass on left two bolt assemblies to be connected with mass block, correspond, the left side of two side latch plates is connected by bearing with support frame 3, and right side is connected with mass block by two bolt assemblies; In order to obtain the design frequency of needs, change the rigidity of latch plate by changing latch plate boundary dimension, in addition, latch plate 1 adopts variable cross section to design, and effectively can suppress the Side movement of mass block; On the right side of support frame 3, neutral position is fixed with a bearing 4, be connected with 5 middle springs plates by rocking arm, both sides, left side respectively have a bearing 4 to be connected with two side latch plates, the Main Function of support frame 3 is separated whole Vibration Suppression System and basis, and the motion for mass block 2 provides enough spaces; On the other hand, support frame 3 is bolted place to be damped, and the load transmitted from basis is passed to vibration system, for the ease of the assembling of bump leveller, alleviates the associated mass of vibration damper, and support frame 3 adopts open frame structure.
This device at least comprises two blocks of steel clamp plates, and two pieces of upper and lower steel frame plates for clamping mass block, and carry out Mass adjust-ment by unnecessary steel plate; Described mass block is made up of plumbous material or steel, mass block is the main motion parts of vibration damper, design frequency one timing, the scope planted agent allowed in space increases the quality of mass block as far as possible, so not only can improve the energy that bump leveller absorbs, the bandwidth of the effective frequency of okperation of bump leveller can also be increased, reduce excitation force produces resonance probability by system during disturbance.
Embodiment 1:
For structure shown in Fig. 1, adopt anti-resonance absorbing principle design, that is: on the ripple latch plate 1 that quality oscillator 2 (comprising tuning weight material and link etc.) supports at shell, when the vertical resonant frequency of entirety is consistent with needing the vibration source frequency on vibration damping basis, bump leveller is in resonance state, the inertial force that quality oscillator produces is contrary with vibration source alternate load equal and opposite in direction direction, base place, thus installation foundation oscillating load is significantly reduced, (when structural damping is zero) vibration amplitude can be reduced to zero in theory.In Fig. 1 embodiment, frequency of okperation designing requirement is 24Hz, and quality oscillator 2 Weight control target is 5kg, passes through formula
calculate the rigidity k of latch plate 1.During concrete structure design, quality oscillator with ripple latch plate 1 junction surface side, it is ± 10mm that symmetry is oblique notched as its space biggest place, ripple latch plate 1 adds up to the Steel Spring Plate of 3 thick 3.3mm, the latch plate 1 of variable cross section design can effectively increase mass block lateral rigidity, avoids the frequency place carrying out controlling to have unnecessary mode.The design utilizing bearing 4 to be connected with Rocker arm 5 can reduce the impact on coupling stiffness that machining error is brought to the full extent, reduces the problem of stress concentration of joint.Support frame 3, bearing 4 and Rocker arm 5 provide support and protect; and inertial load is delivered on basis; thus effectively avoid base support rigidity on the impact of shock-absorbing means performance, therefore without the need to adjusting frequency of okperation after mounting, make installation and maintenance more efficient and convenient.
Embodiment 2:
Similar to embodiment 1, difference is, on the basis of example 1, and the frequency of vibration damping can also be needed to carry out the adjustment of steel clamp plate quantity according to Environmental Conditions, such as frequency of okperation needs the quality oscillator of about 15kg, because steel frame plate surrounding has screw, the weight of quality oscillator 2 can be increased by the quantity increasing steel clamp plate.
Embodiment 3:
Similar to embodiment 1, difference is, on the basis of example 1, and the frequency of vibration damping can also be needed to adjust accordingly according to Environmental Conditions, such as frequency of okperation needs to be reduced to 20Hz from 24Hz, obtaining under the prerequisite not adjusting latch plate rigidity by formulae discovery, need the quality oscillator of about 7.2kg, can realize by increasing tuning weight mass block (as 2-1b).If frequency of okperation needs to be increased to 30Hz from 24Hz, the quality oscillator needing 3.2kg can be calculated equally, at this moment just quality oscillator can be realized by reducing tuning counterweight 2-1b or tuning counterweight 2-2b being replaced with the less material of density.Therefore this design flexibility is better.
It should be noted that; internal inserted spring type anti-resonance equipment for inhibiting of vibration of the present invention comprises any one and combination in any thereof in above-described embodiment; but embodiment recited above is described the preferred embodiment of the present invention; not the scope of the invention is limited; do not departing under the present invention designs spiritual prerequisite; the various distortion that the common engineers and technicians in related domain make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (5)
1. an internal inserted spring type anti-resonance equipment for inhibiting of vibration, it is characterized in that: the latch plate (1) comprising support frame (3) and be connected with support frame (3) bearing, latch plate (1) all has a mass block in both sides up and down, with steel clamp plate outside described mass block, upper steel clamp plate (2-1a), block of improving quality (2-2a), latch plate (1), lower mass block (2-2b) are connected with lower steel clamp plate (2-1b) by four bolt assemblies that described internal inserted spring type anti-resonance equipment for inhibiting of vibration is installed by surrounding from top to bottom successively;
Wherein, latch plate (1) is made up of one block of middle springs plate and two side latch plates, described middle springs plate is connected with two side latch plate equal thickness variable cross sections, be connected by bearing (4) with support frame (3) on the right side of described middle springs plate, pass on left two bolt assemblies to be connected with upper and lower two mass blockes, correspond, the left side of two side latch plates is connected by bearing (4) with support frame (3), and the right side of two side latch plates is connected with upper and lower two mass blockes by two bolt assemblies;
Neutral position, support frame (3) right side is fixed with a bearing (4), be connected with described middle springs plate by rocking arm (5), both sides, support frame (3) left side respectively have a bearing (4) to be connected with two described side latch plates.
2. internal inserted spring type anti-resonance equipment for inhibiting of vibration according to claim 1, is characterized in that: described internal inserted spring type anti-resonance equipment for inhibiting of vibration comprises steel clamp plate (2-1a) and at least one lower steel clamp plate (2-1b) at least one.
3. internal inserted spring type anti-resonance equipment for inhibiting of vibration according to claim 1, is characterized in that: described mass block is made up of plumbous material.
4. internal inserted spring type anti-resonance equipment for inhibiting of vibration according to claim 1, is characterized in that: described mass block is made up of steel.
5. internal inserted spring type anti-resonance equipment for inhibiting of vibration according to claim 1, is characterized in that: described mass block and latch plate (1) junction surface are inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206047.8A CN104791413B (en) | 2015-04-27 | 2015-04-27 | A kind of internal inserted spring type antiresonance equipment for inhibiting of vibration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510206047.8A CN104791413B (en) | 2015-04-27 | 2015-04-27 | A kind of internal inserted spring type antiresonance equipment for inhibiting of vibration |
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| CN104791413A true CN104791413A (en) | 2015-07-22 |
| CN104791413B CN104791413B (en) | 2017-06-13 |
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| CN201510206047.8A Active CN104791413B (en) | 2015-04-27 | 2015-04-27 | A kind of internal inserted spring type antiresonance equipment for inhibiting of vibration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108304653A (en) * | 2018-02-01 | 2018-07-20 | 中国中元国际工程有限公司 | Crystal cultivates process environments vibration effect and quantifies rapid evaluation technology |
| CN109268418A (en) * | 2018-10-26 | 2019-01-25 | 西南交通大学 | A kind of weather-proof durability all-metal multiple spot frequency-selecting vibration suppression structure |
| CN109969395A (en) * | 2017-12-28 | 2019-07-05 | 极光飞行科学公司 | For fixing the ground controlling system and method for aircraft |
| CN111038694A (en) * | 2019-12-04 | 2020-04-21 | 中国直升机设计研究所 | Novel anti-resonance main vibration reduction and isolation device |
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| EP0183197A2 (en) * | 1984-11-26 | 1986-06-04 | METZELER Gesellschaft mit beschränkter Haftung | Elastic engine mounting |
| DE4321193C1 (en) * | 1993-06-25 | 1995-01-12 | Jenoptik Jena Gmbh | Emergency device for a body driven in one plane |
| CN202597577U (en) * | 2011-12-22 | 2012-12-12 | 中国直升机设计研究所 | Vibration absorbing device |
| CN203259773U (en) * | 2013-03-27 | 2013-10-30 | 上海微电子装备有限公司 | Micromotion module provided with vibration absorption device |
| CN203384280U (en) * | 2013-06-20 | 2014-01-08 | 上海柴油机股份有限公司 | Power assembly damp auxiliary shock absorber |
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2015
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Patent Citations (5)
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| EP0183197A2 (en) * | 1984-11-26 | 1986-06-04 | METZELER Gesellschaft mit beschränkter Haftung | Elastic engine mounting |
| DE4321193C1 (en) * | 1993-06-25 | 1995-01-12 | Jenoptik Jena Gmbh | Emergency device for a body driven in one plane |
| CN202597577U (en) * | 2011-12-22 | 2012-12-12 | 中国直升机设计研究所 | Vibration absorbing device |
| CN203259773U (en) * | 2013-03-27 | 2013-10-30 | 上海微电子装备有限公司 | Micromotion module provided with vibration absorption device |
| CN203384280U (en) * | 2013-06-20 | 2014-01-08 | 上海柴油机股份有限公司 | Power assembly damp auxiliary shock absorber |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969395A (en) * | 2017-12-28 | 2019-07-05 | 极光飞行科学公司 | For fixing the ground controlling system and method for aircraft |
| CN109969395B (en) * | 2017-12-28 | 2023-11-24 | 极光飞行科学公司 | Ground handling system and method for securing an aircraft |
| CN108304653A (en) * | 2018-02-01 | 2018-07-20 | 中国中元国际工程有限公司 | Crystal cultivates process environments vibration effect and quantifies rapid evaluation technology |
| CN108304653B (en) * | 2018-02-01 | 2021-07-27 | 中国中元国际工程有限公司 | Quantitative and rapid evaluation technology for environmental vibration influence of crystal cultivation process |
| CN109268418A (en) * | 2018-10-26 | 2019-01-25 | 西南交通大学 | A kind of weather-proof durability all-metal multiple spot frequency-selecting vibration suppression structure |
| CN109268418B (en) * | 2018-10-26 | 2024-05-10 | 西南交通大学 | Weather-proof durable all-metal multipoint frequency-selecting vibration-inhibiting structure |
| CN111038694A (en) * | 2019-12-04 | 2020-04-21 | 中国直升机设计研究所 | Novel anti-resonance main vibration reduction and isolation device |
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| Publication number | Publication date |
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| CN104791413B (en) | 2017-06-13 |
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