CN101709756B - Vibration damper - Google Patents
Vibration damper Download PDFInfo
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- CN101709756B CN101709756B CN2009101909152A CN200910190915A CN101709756B CN 101709756 B CN101709756 B CN 101709756B CN 2009101909152 A CN2009101909152 A CN 2009101909152A CN 200910190915 A CN200910190915 A CN 200910190915A CN 101709756 B CN101709756 B CN 101709756B
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- pull bar
- absorbing parts
- rubber
- vibration damper
- base plate
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Abstract
The invention discloses a vibration damper which comprises a cylinder body, wherein the upper end, the lower end and the inside of the cylinder body are respectively provided with a guide plate, a bottom plate and a rubber vibration-damping component fixedly, a pull rod is penetrated on the guide plate along the axis of the cylinder body, the pull rod and the guide plate are in movable fit, the lower end of the pull rod is fixedly connected with the rubber vibration-damping component, and the upper end of the pull rod is provided with external screw threads; a screw rod which is in the same axis with the pull rod is fixedly installed on the bottom plate. The invention has the advantages of good vibration-damping effect, high durability, good stability and convenient installation.
Description
Technical field
The present invention relates to a kind of vibration damper, especially a kind of vibration damper that mainly utilizes rubber components to carry out damping.
Background technique
Two big public hazards when vibrations and dry sound are engineering machinery work.Motor is the main vibratory source of engineering machinery, and when particularly high engine speeds turned round, its vibrations showed especially obviously.Because output power and moment of torsion are little, and rotating speed is quite high again, general nominal power rotating speed reaches 7000～8000rpm as engine for motorcycle, and is therefore just more serious from the vibrations of motor.The propagation of engine vibration directly has influence on the whole aircraft reliability and the working life of engineering machinery, also makes driver's riding comfort variation simultaneously, reduces working efficiency.
Referring to Fig. 4, at present engine for motorcycle 12 is installed on the engine bracker 14, and four angles of engine bracker 14 are connected with supporting base 11 on the vehicle frame by bolt 12, are set with spring 13 on the bolt 12 between carriage 14 and the supporting base 11.This damping device mainly reaches the purpose of damping by spring 13, still since between carriage 14 and the supporting base 11 for being rigidly connected, be rigidly connected to understand to conduct and shake vehicle frame, damping effect is poor; Simultaneously spring 13 easy elastic fatigues cause engine bracker 14 inclinations, cause the motor can't proper functioning.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of vibration damper of good damping effect.
In order to address the above problem, technological scheme of the present invention is: a kind of vibration damper, comprise cylindrical shell, upper and lower end and inside at this cylindrical shell are fixed with guide plate, base plate and rubber shock-absorbing parts respectively, axis at described guide plate upper edge cylindrical shell is installed with pull bar, this pull bar and guide plate movingly, and the lower end of pull bar fixedlys connected with described rubber shock-absorbing parts, is provided with outside thread in the upper end of this pull bar; On described base plate, be installed with screw rod with the same axis of described pull bar.
The present invention arrives the rubber shock-absorbing parts by the pull bar on the guide plate with shock transfer, utilizes the rubber shock-absorbing parts to carry out damping again.The rubber shock-absorbing parts have the following advantages: (1) freedom shape is bigger; (2) have appropriate damping capacity, can in the scope of low frequency～high frequency, be used; (3) have various performances such as damping, buffering, sound insulation simultaneously; (4) shock stiffness is greater than dynamic stiffness, and dynamic stiffness helps reducing blastic deformation and dynamic deformation greater than quiet rigidity.In addition, because for to be connected indirectly, having avoided shaking, vibratory source and supporting base be transmitted to vehicle frame.
As one of them preferred embodiment of technique scheme, described rubber shock-absorbing parts are elastomer diaphragm, are provided with the yielding support seat between these rubber shock-absorbing parts and described base plate, and this yielding support seat is fixed on the base plate.When the load of bearing when pull bar was heavier, the yielding support seat can be shared part gravity, avoided excessive being torn of elastomer diaphragm distortion.The yielding support seat is rubber pad or spring, and the center line of its medi-spring overlaps with the shaft axis of described pull bar, and the lower end of this spring is fixed on the described base plate, at the upper end of this spring fixed installation plain cushion.Preferred as this embodiment, described rubber shock-absorbing parts are connected with the inner wall sealing of described cylindrical shell, and between described base plate and described cylindrical shell, be provided with seal ring, be filled with inert gas in the Seal cage that is formed by rubber shock-absorbing parts, base plate and cylindrical shell, the air pressure of this inert gas is greater than the air pressure of ambient air.When the rubber shock-absorbing parts bore shock load, the gas in the compression seal chamber further played the effect of damping by air pressure.In addition, the material of elastomer diaphragm is rubber or rubber and plastic, is preferably neoprene or butyl rubber, its tensile strength is 200～630N/mm, elongation at break is 400～700%, and is warping strength time greater than 2,000,000 times, with the damping performance that improves elastomer diaphragm with prolong its working life.
As another embodiment of technique scheme, described rubber shock-absorbing parts are block rubber, and the bottom surface of this block rubber reclines mutually with the upper surface of described base plate, rely on block rubber to carry out damping among this embodiment fully.
In above-mentioned two embodiments, on the described pull bar on the described guide plate, be installed with support pads, on the pull bar on this support pads, be provided with described outside thread, so that assemble with other parts.In addition, described rubber shock-absorbing parts and described cylindrical shell and pull bar joint are bonding.
Compared with prior art, the invention has the beneficial effects as follows:
(1) good damping effect, the present invention carries out damping by the rubber shock-absorbing parts, and has avoided vibratory source and supporting base to be rigidly connected good damping effect; In addition, further vibrations are decayed, strengthened damping effect by gas;
(2) durable in use, the present invention adopts elastomer diaphragm as vibration damper, and elastomer diaphragm is anti-to circumnutate long service life;
(3) last, the present invention also has good stability, advantage easy for installation.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is used for the erection drawing of engine for motorcycle damping for the present invention;
Fig. 4 is the vibration damper of prior art engine for motorcycle.
Embodiment
Further the present invention is illustrated below in conjunction with drawings and Examples.
Referring to Fig. 1, be the structural representation of the embodiment of the invention 1.Vibration damper mainly is made up of cylindrical shell 1, guide plate 2, rubber shock-absorbing parts 3, base plate 4 and screw rod 7, its middle cylinder body 1, guide plate 2 and base plate 4 are metalwork, upper and lower end at cylindrical shell 1 welds or has riveted guide plate 2 and base plate 4 respectively, middle and upper part in cylindrical shell 1 is bonded with rubber shock-absorbing parts 3, these rubber shock-absorbing parts 3 are elastomer diaphragm, the material of elastomer diaphragm is rubber or rubber and plastic, is preferably neoprene or butyl rubber.The tensile strength of elastomer diaphragm is 200～630N/mm, and elongation at break is 400～700%, and warping strength time greater than 2,000,000 times.Axis at guide plate 2 upper edge cylindrical shells 1 is installed with pull bar 5, this pull bar 5 is the highi degree of accuracy bar, the bottom of this pull bar 5 and guide plate 2 are movingly, and the lower end of pull bar 5 is mutually bonding with rubber shock-absorbing parts 3, on the pull bar on the guide plate 25, be installed with support pads 6, on the pull bar 5 on this support pads 6, be provided with outside thread.Be provided with plain cushion 9 and spring 8 between rubber shock-absorbing parts 3 and base plate 4, the center line of its medi-spring 8 overlaps with the shaft axis of pull bar 5, and the lower end of this spring 8 is welded on the base plate 4, in the upper end and plain cushion 9 welding of this spring 8.Be welded with screw rod 7 with pull bar 5 same axis at the lower surface of base plate 4.
Improvement as embodiment 1, rubber shock-absorbing parts 3 are connected with the inner wall sealing of cylindrical shell 1, and between base plate 4 and cylindrical shell 1, be provided with seal ring 10, in the Seal cage that forms by rubber shock-absorbing parts 3, base plate 4 and cylindrical shell 1, be filled with inert gas, inert gas is an argon gas, and the air pressure of this inert gas is greater than the air pressure of ambient air.
Referring to Fig. 2, be the structural representation of the embodiment of the invention 2.Be that with embodiment 1 difference rubber shock-absorbing parts 3 are block rubber, the bottom surface of this block rubber reclines mutually with the upper surface of described base plate 4.
Referring to Fig. 3, for the present invention is assemblied in erection drawing on the motor tricycle.Behind the mounting hole and the mounting hole on the supporting base 11 that the pull bar 5 and the screw rod 7 of vibration damper passed 14 4 angles of engine bracker respectively, get final product with nut check respectively again, install very convenient.
More than to a kind of vibration damper provided by the present invention, be described in detail, used specific case herein principle of the present invention and mode of execution set forth, above embodiment's explanation just is used for help understanding method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. vibration damper, it is characterized in that: comprise cylindrical shell (1), on this cylindrical shell (1), lower end and inside are fixed with guide plate (2) respectively, base plate (4) and rubber shock-absorbing parts (3), axis at described guide plate (2) upper edge cylindrical shell (1) is installed with pull bar (5), this pull bar (5) and guide plate (2) are movingly, and fixedly connected with described rubber shock-absorbing parts (3) in the lower end of pull bar (5), described rubber shock-absorbing parts (3) are elastomer diaphragm, be provided with the yielding support seat between these rubber shock-absorbing parts (3) and described base plate (4), this yielding support seat is fixed on the base plate (4); Upper end at this pull bar (5) is provided with outside thread; On described base plate (4), be installed with screw rod (7) with the same axis of described pull bar (5).
2. vibration damper according to claim 1, it is characterized in that: described yielding support seat is made up of plain cushion (9) and spring (8), the center line of its medi-spring (8) overlaps with the shaft axis of described pull bar (5), the lower end of this spring (8) is fixed on the described base plate (4), fixedly mounts described plain cushion (9) in the upper end of this spring (8).
3. a kind of vibration damper according to claim 1, it is characterized in that: described rubber shock-absorbing parts (3) are connected with the inner wall sealing of described cylindrical shell (1), and between described base plate (4) and described cylindrical shell (1), be provided with seal ring (10), be filled with inert gas in the Seal cage that is formed by rubber shock-absorbing parts (3), base plate (4) and cylindrical shell (1), the air pressure of this inert gas is greater than the air pressure of ambient air.
4. according to the arbitrary described a kind of vibration damper of claim 1 to 3, it is characterized in that: the material of described rubber shock-absorbing parts (3) is rubber or rubber and plastic.
5. a kind of vibration damper according to claim 4 is characterized in that: described rubber is neoprene or butyl rubber.
6. a kind of vibration damper according to claim 5 is characterized in that: the tensile strength of described rubber shock-absorbing parts (3) is 200～630N/mm, and elongation at break is 400～700%, and warping strength time greater than 2,000,000 times.
7. a kind of vibration damper according to claim 1 is characterized in that: described rubber shock-absorbing parts (3) are block rubber, and the bottom surface of this block rubber reclines mutually with the upper surface of described base plate (4).
8. according to claim 6 or 7 described a kind of vibration dampers, it is characterized in that: on the described pull bar (5) on the described guide plate (2), be installed with support pads (6), on the pull bar (5) on this support pads (6), be provided with described outside thread.
9. a kind of vibration damper according to claim 8 is characterized in that: described rubber shock-absorbing parts (3) are bonding with described cylindrical shell (1) and pull bar (5) joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101909152A CN101709756B (en) | 2009-09-21 | 2009-09-21 | Vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101909152A CN101709756B (en) | 2009-09-21 | 2009-09-21 | Vibration damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709756A CN101709756A (en) | 2010-05-19 |
| CN101709756B true CN101709756B (en) | 2011-05-04 |
Family
ID=42402556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101909152A Expired - Fee Related CN101709756B (en) | 2009-09-21 | 2009-09-21 | Vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709756B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225667A (en) * | 2013-04-26 | 2013-07-31 | 哈尔滨工程大学 | Adjustable air damper for split Hopkinson pressure bar |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401581A (en) * | 2016-05-19 | 2017-11-28 | 拜默实验设备（上海）股份有限公司 | A kind of air Compressor unit for reducing mechanical resonance |
| CN106976387A (en) * | 2017-04-27 | 2017-07-25 | 苏州蓝王机床工具科技有限公司 | Hand tractor engine damping base |
| WO2019051697A1 (en) * | 2017-09-13 | 2019-03-21 | 深圳日海通讯技术股份有限公司 | Damping cabinet |
| CN108517796A (en) * | 2018-05-28 | 2018-09-11 | 中铁第勘察设计院集团有限公司 | Approximate closed steel case adds spring buffer layer |
| CN109168828A (en) * | 2018-11-02 | 2019-01-11 | 安徽桐城香山农业科技发展有限公司 | A kind of dual-purpose plastic mulching machine of hand-force maneuvering |
-
2009
- 2009-09-21 CN CN2009101909152A patent/CN101709756B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225667A (en) * | 2013-04-26 | 2013-07-31 | 哈尔滨工程大学 | Adjustable air damper for split Hopkinson pressure bar |
| CN103225667B (en) * | 2013-04-26 | 2015-05-27 | 哈尔滨工程大学 | Adjustable air damper for split Hopkinson pressure bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709756A (en) | 2010-05-19 |
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