CN102494075A - High-energy consumption viscoelastic vibration isolating damper for engine - Google Patents
High-energy consumption viscoelastic vibration isolating damper for engine Download PDFInfo
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- CN102494075A CN102494075A CN2011104497772A CN201110449777A CN102494075A CN 102494075 A CN102494075 A CN 102494075A CN 2011104497772 A CN2011104497772 A CN 2011104497772A CN 201110449777 A CN201110449777 A CN 201110449777A CN 102494075 A CN102494075 A CN 102494075A
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- 238000005265 energy consumption Methods 0.000 title abstract 10
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 45
- 238000013016 damping Methods 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a high-energy consumption viscoelastic vibration isolating damper for an engine. The high-energy consumption viscoelastic vibration isolating damper comprises an upper damping block and a lower damping block, wherein the upper damping block comprises a central shaft, a high-energy consumption viscoelastic material fixed on the central shaft, an upper metal gasket arranged on the top surface of the high-energy consumption viscoelastic material and an upper support arranged on the lower part of the high-energy consumption viscoelastic material; the lower damping block comprises the high-energy consumption viscoelastic material, a lower metal gasket arranged on the bottom surface of the high-energy consumption viscoelastic material and a lower support arranged on the upper part of the high-energy consumption viscoelastic material. According to the vibration isolating damper, the high-energy consumption viscoelastic material can increase damping ratio of a structural system and enhance a vibration isolating effect of a low-frequency area, so the vibration isolation and vibration damping effects are achieved.
Description
Technical field
The invention belongs to engineering machinery field, be specifically related to a kind of motor with the separated vibration damper of highly energy-consuming viscoelasticity.
Background technique
Engineering machinery is widely used in the every field of modernization construction.Because the speed change varying duty state down running of engineering machinery through being everlasting rapid, so mostly the motor of engineering machinery is the high-power high output engine.And caused vibration also is huge during the running of these high-power high output engines; If effective and reasonable control is not carried out in these vibrations; In the agent structure of letting alone to be delivered to frame and then to be delivered to engineering machinery, will cause the bigger vibration of engineering machinery, this vibration has not only reduced the working life of engineering machinery; Also endanger the healthy of mechanically actuated personnel greatly, influencing operator's working efficiency and workmanship.Therefore how to reduce the vibration that engineering machinery engine causes and become an important problems.
Present control for engine luggine generally comprises thereby it is reasonably designed to reduce generation of vibration or to reduce to be delivered to the vibration on the entablature through damping device is installed.Mostly the material of damping device commonly used is General Purpose Rubber at present, and it has damping effect, and does not have isolating affection, and therefore the control effect to vibration still is not fine.
Summary of the invention
The objective of the invention is to address the above problem, provide a kind of motor that has isolating affection and damping effect simultaneously with the separated vibration damper of highly energy-consuming viscoelasticity.
The technological scheme that realizes the object of the invention is: a kind of motor at a distance from vibration damper, comprises snubber block and following snubber block with highly energy-consuming viscoelasticity; The said snubber block of going up comprises central shaft, is fixed in the highly energy-consuming viscoelastic material on this central shaft, the upper bracket that is arranged on the last metal washer of said highly energy-consuming viscoelastic material end face and is arranged on said highly energy-consuming viscoelastic material bottom; Said snubber block down comprises the highly energy-consuming viscoelastic material, is arranged on the following metal washer of said highly energy-consuming viscoelastic material bottom surface and the lower support frame that is arranged on said highly energy-consuming viscoelastic material top.
Highly energy-consuming viscoelasticity is added and is located between engine foundation and the frame at a distance from vibration damper, and when motor move, the vibration of engine producing was delivered on the entablature through the separated vibration damper of highly energy-consuming viscoelasticity of the present invention.Because the ratio of rigidity of viscoelastic material is less; Damping constant is bigger; Add this and can reduce the natural frequency of vibration of system, the damping ratio of increase system, thereby greatly reduced the transfer of vibration coefficient, therefore can well intercept the transmission of vibration to entablature at a distance from vibration damper.Simultaneously, under vibrating load, do relatively reciprocating motion between central shaft and support, the highly energy-consuming viscoelastic material just produces reciprocal tension and compression deformation.The molecular chain of highly energy-consuming viscoelastic material takes place to stretch and twists sliding deformation, and the Conversion of energy that vibration is produced is that heat energy dissipates, and makes vibration reduce greatly.Through the effect of above vibration isolation, vibration damping, the vibration of engine producing greatly reduces the vibrating load that entablature bears being decayed greatly behind vibration damper through highly energy-consuming viscoelasticity.
The good effect that the present invention has: (1) highly energy-consuming viscoelastic material that in vibration damper, adopts of the present invention can increase the damping ratio of structural system, strengthens the isolating affection of low frequency range, therefore plays shock insulation and damping effect simultaneously.(2) separated vibration damper of the present invention is provided with upper bracket in the bottom of last snubber block, is provided with lower support frame on the top of following snubber block, can reduce the wearing and tearing of frame to the highly energy-consuming viscoelastic material so greatly, thereby increases the working life at a distance from vibration damper.(3) of the present invention at a distance from vibration damper simple structure, easy to make, cheap.
Description of drawings
Fig. 1 is that motor of the present invention is with the structural representation of highly energy-consuming viscoelasticity at a distance from vibration damper.
Have among the figure: 10 central shafts; 11 highly energy-consuming viscoelastic materials; 12 metal washers; 13 upper brackets; 21 highly energy-consuming viscoelastic materials; 22 metal washers; 23 lower support frames; 3 entablatures; 4 bolts; 5 engine foundations.
Fig. 2 is the structural representation of the last snubber block among Fig. 1.
Fig. 3 is the structural representation of the following snubber block among Fig. 1.
Embodiment
(embodiment 1)
See Fig. 1 to Fig. 3, the motor of present embodiment comprises snubber block 1 and following snubber block 2 with highly energy-consuming viscoelasticity at a distance from vibration damper.
Last snubber block 1 comprises central shaft 10, is fixed in the highly energy-consuming viscoelastic material 11 on this central shaft 10, the upper bracket 13 that is arranged on the last metal washer 12 of highly energy-consuming viscoelastic material 11 end faces and is arranged on highly energy-consuming viscoelastic material 11 bottoms.
The lower support frame 23 that following snubber block 2 comprises highly energy-consuming viscoelastic material 21, is arranged on the following metal washer 22 of highly energy-consuming viscoelastic material 21 bottom surfaces and is arranged on highly energy-consuming viscoelastic material 21 tops.
The separated vibration damper of present embodiment is arranged between engine foundation and the entablature 3 when using, and is stuck on the entablature 3 through upper bracket 13 and lower support frame 23, tightens the back by bolt 4 and pad 5 and forms an integral body with entablature 3.Last lower support frame 13,23 can be avoided the wearing and tearing of 3 pairs of highly energy-consuming viscoelastic materials of entablature 11,12 in the vibration processes effectively, effectively improves the working life at a distance from vibration damper.And metal washer 12,22 is used to bear because bolt 4 is tightened the extruding force of being brought up and down, can guarantee that local distortion can not take place under the local compression effect highly energy-consuming viscoelastic material 11,12, influences its proper functioning.Certainly, can adjust the shape of upper bracket 13 and lower support frame 23 according to the difference of entablature 3 profiles so that should at a distance from vibration damper can be tight attached on the entablature 3.
The last snubber block 1 of the separated vibration damper of present embodiment is a same substance with the highly energy-consuming viscoelastic material 11,12 in the following snubber block 2.It has the big characteristics of damping constant, can reduce the natural frequency of vibration of structural system, the damping ratio of increase structural system like this, thereby greatly reduce the transfer of vibration coefficient, thereby reduce structural vibration response.In addition, this highly energy-consuming viscoelastic material also has characteristics such as service band broad, production technology be reliable, easy to use, can be widely used in the separated Vibration Absorption Designing under the various complex conditions.Highly energy-consuming viscoelastic material 11,12 need be fixedly connected as a whole with central shaft 10, guarantees its unlikely cracking even disengagement in vibration processes.Highly energy-consuming viscoelastic material 11,12 need carry out vulcanizing treatment in case of necessity, guarantees the adhesion strength of itself and central shaft 10.
When motor moved, the vibration of engine producing was delivered on the entablature 3 through the separated vibration damper of present embodiment.Because highly energy-consuming viscoelastic material 11,12 can through increasing the damping ratio of structural system, produce at a distance from effectiveness in vibration suppression engine apparatus on the basis that separating vibration transmits, and therefore can well intercept the transmission of vibration to entablature 3.The viscoelastic material of highly energy-consuming simultaneously can also guarantee in vibration, not take place over-large displacement, and after vibration finishes, sets back, and avoids the distortion of material place creep.
Simultaneously, under vibrating load, can do relatively reciprocating motion between central shaft 10 and the entablature 3, because highly energy-consuming viscoelastic material 11,12 is fixed on the central shaft 10, its inboard then can be synchronized with the movement with central shaft 10; Support and entablature 3 owing to highly energy-consuming viscoelastic material 11,12 is stuck in addition, so its outside is synchronized with the movement with entablature 3 again.Cause highly energy-consuming viscoelastic material 11,12 can produce reciprocal tension and compression deformation like this; The distortion sliding deformation thereby the molecular chain that makes highly energy-consuming viscoelastic material 11,12 takes place to stretch; The Conversion of energy that can vibrate generation like this is that heat energy dissipates, and makes vibration reduce greatly.The vibration of engine producing greatly reduces the vibrating load that entablature 3 is born being decayed greatly through behind the separated vibration damper of present embodiment like this.
Claims (2)
1. a motor comprises snubber block (1) and following snubber block (2) with the separated vibration damper of highly energy-consuming viscoelasticity; It is characterized in that: the said snubber block (1) of going up comprises central shaft (10), is fixed in the highly energy-consuming viscoelastic material (11) on this central shaft (10), the upper bracket (13) that is arranged on the last metal washer (12) of said highly energy-consuming viscoelastic material (11) end face and is arranged on said highly energy-consuming viscoelastic material (11) bottom; The lower support frame (23) that said snubber block (2) down comprises highly energy-consuming viscoelastic material (21), is arranged on the following metal washer (22) of said highly energy-consuming viscoelastic material (21) bottom surface and is arranged on said highly energy-consuming viscoelastic material (21) top.
2. motor according to claim 1 is with the separated vibration damper of highly energy-consuming viscoelasticity; It is characterized in that: used highly energy-consuming viscoelastic material (11,21) in the device; Use this material can increase the damping ratio of structural system; Strengthen the isolating affection of low frequency range, can effectiveness in vibration suppression be provided to the vibration that the top engine apparatus produces simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104497772A CN102494075A (en) | 2011-12-28 | 2011-12-28 | High-energy consumption viscoelastic vibration isolating damper for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104497772A CN102494075A (en) | 2011-12-28 | 2011-12-28 | High-energy consumption viscoelastic vibration isolating damper for engine |
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| Publication Number | Publication Date |
|---|---|
| CN102494075A true CN102494075A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104497772A Pending CN102494075A (en) | 2011-12-28 | 2011-12-28 | High-energy consumption viscoelastic vibration isolating damper for engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089696A (en) * | 2019-12-30 | 2020-05-01 | 日立电梯（中国）有限公司 | Elevator guide shoe vibration test bench and test method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996004491A1 (en) * | 1994-07-29 | 1996-02-15 | Minnesota Mining And Manufacturing Company | Structural hollow articles filled with damping materials |
| US6621658B1 (en) * | 1999-07-14 | 2003-09-16 | Material Sciences Corporation | Vibration damping laminate with vibration isolating cut therein |
| CN101759938A (en) * | 2010-02-10 | 2010-06-30 | 东南大学 | Low-frequency vibrating viscous-elastic material with high power consumption |
| CN201757152U (en) * | 2010-07-20 | 2011-03-09 | 常州市东海橡胶厂有限公司 | Shock absorber of engine |
-
2011
- 2011-12-28 CN CN2011104497772A patent/CN102494075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996004491A1 (en) * | 1994-07-29 | 1996-02-15 | Minnesota Mining And Manufacturing Company | Structural hollow articles filled with damping materials |
| US6621658B1 (en) * | 1999-07-14 | 2003-09-16 | Material Sciences Corporation | Vibration damping laminate with vibration isolating cut therein |
| CN101759938A (en) * | 2010-02-10 | 2010-06-30 | 东南大学 | Low-frequency vibrating viscous-elastic material with high power consumption |
| CN201757152U (en) * | 2010-07-20 | 2011-03-09 | 常州市东海橡胶厂有限公司 | Shock absorber of engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089696A (en) * | 2019-12-30 | 2020-05-01 | 日立电梯（中国）有限公司 | Elevator guide shoe vibration test bench and test method thereof |
| CN111089696B (en) * | 2019-12-30 | 2021-10-22 | 日立电梯（中国）有限公司 | Elevator guide shoe vibration test bench and test method |
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Application publication date: 20120613 |