CN104121315A - Damper - Google Patents
Damper Download PDFInfo
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- CN104121315A CN104121315A CN201310149636.8A CN201310149636A CN104121315A CN 104121315 A CN104121315 A CN 104121315A CN 201310149636 A CN201310149636 A CN 201310149636A CN 104121315 A CN104121315 A CN 104121315A
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- outer cylinder
- cylinder body
- vibration damper
- vibration
- damper
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- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a damper which comprises an outer cylinder, an inner cylinder, a damping element and a first protective ring, wherein a guiding hole is formed in the outer cylinder, the inner cylinder comprises a containing part and a supporting part, the supporting part comprises a first end and a second end, the first end of the supporting part is connected with the containing part, the containing part is located inside the outer cylinder, the supporting part is movably arranged in the guiding hole, the second end of the supporting part protrudes out of the outer cylinder, and an annular gap is formed between the outer cylinder and the containing part; the damping element is installed in the outer cylinder, the first end of the damping element is connected with the outer cylinder in an abutting mode, the second end of the damping element is located in the containing part, and the first protective ring is installed in the annular gap to enable the inner cylinder, the first protective ring and the outer cylinder to be in rigid connection in the radial direction of the damper. By means of the structure, denoising and vibration isolation can be achieved during normal operation, and displacement and toppling of a vibration part can be avoided under the condition of earthquakes and the like.
Description
Technical field
The present invention relates to mechanical field, particularly relate to a kind of vibration damper.
Background technique
A lot of industrial fields at home, some vibration member or equipment (blower fan, compressor etc. as used in nuclear power plant) are used in capital, and they self have certain vibration, and in the time of earthquake, it still can conventional operation, can not produce displacement, topples over and affect around parts and equipment.
In the time of conventional operation, need to carry out damping to vibration member and bring the impact of object around to reduce noise and vibration, now, oscillating load is relatively little, is generally no more than 1.4 times of vibration member own wt, and the elasticity coefficient of the vibration damper using is also less.In the time that earthquake occurs, under the effect of seismic acceleration, in X, Y, tri-directions of Z, all can produce very large load, according to the difference of earthquake intensity, when earthquake, be added in load on equipment and can reach 3～7 times of vibration member own wt, now require that vibration member can not be subjected to displacement, overturning and affect or damage parts and equipment around.
The current vibration member for there being core level shockproof requirements, nuclear power station or equipment manufacturer select the steel rope damper shown in Fig. 1 to reach damping effect conventionally.But, please refer to Fig. 1, the damping effect of steel rope damper 100 is not as spring damper.Therefore,, in the time of coupling vibration damper, if play vibration isolating effect while ensureing conventional operation, will select ting model steel rope damper 100, to ensure the elasticity of vibration damper.But, once there is earthquake, vibration member horizontal, longitudinal loading is very large, can cause vibration member displacement excessive or topple over and damage or affect parts and equipment around.
If ensure that, in the time that earthquake occurs, larger displacement does not occur vibration member, will increase the rigidity of steel rope damper 100, for example, can adopt the mode of selecting large model steel rope damper or increasing steel rope damper quantity.But, will cause like this vibration member damping efficiency in the time of conventional operation sharply to reduce, cannot play the vibration isolation effect of requirement, transfer vibrations on the parts that are connected, even, on floor, cause integral device vibrations excessive, even floor cracking.
In addition, steel rope damper 100 when mounted, once that its decrement not etc., will not cause vibration member to install is out-of-level in the vertical, now can only ensure by the mode of the position of continuous adjustment steel rope damper 100 lengthwise position of vibration member, to parts, assembling makes troubles.
Summary of the invention
The object of this invention is to provide a kind of simple in structure, both can make vibration member noise reduction, vibration isolation in the time of conventional operation, also can ensure under lateral load, there is not displacement, the vibration damper of toppling in vibration member.
For solving the problems of the technologies described above, as first aspect of the present invention, provide a kind of vibration damper, comprising: outer cylinder body, offers pilot hole on outer cylinder body; Inner barrel, comprises accommodating part and supporting portion, and supporting portion comprises first end and the second end, and the first end of supporting portion is connected with accommodating part, and accommodating part is positioned at outer cylinder body, and supporting portion is arranged in pilot hole actively, and the second distal process goes out the outside at outer cylinder body; Between outer cylinder body and accommodating part, there is annular gap; Damper element, is arranged in outer cylinder body, and the first end of damper element and outer cylinder body butt, and the second end of damper element is positioned at accommodating part; The first retaining ring, the first retaining ring is arranged in annular gap, so that inner barrel, the first retaining ring and outer cylinder body upwards form and are rigidly connected in the footpath of vibration damper.
Further, vibration damper also comprises that adjustable ground is arranged on the adjusting stop nut on supporting portion; In the time of state of equilibrium, regulate between stop nut and the top of outer cylinder body and there is the first gap; In the time of buffer status, regulate stop nut can with outer cylinder body butt.
Further, in the time of state of equilibrium, accommodating part and outer cylinder body have the second gap in the axial direction of vibration damper; In the time of buffer status, accommodating part can with outer cylinder body butt.
Further, vibration damper also comprises the first shock absorber, and the first shock absorber is arranged on the first gap location.
Further, vibration damper also comprises the second shock absorber that is arranged on the second gap location, and the second shock absorber is connected with outer cylinder body.
Further, vibration damper also comprises the second retaining ring being arranged in pilot hole, and supporting portion is through the second retaining ring, and supporting portion is upwards formed and is rigidly connected by the footpath at vibration damper between the second retaining ring and outer cylinder body.
Further, outer cylinder body comprises the first outer cylinder body and the second outer cylinder body, between the first outer cylinder body and the second outer cylinder body, is threaded connection, and pilot hole is positioned on the first outer cylinder body; The first end of damper element and the second outer cylinder body butt.
Further, between accommodating part and the second outer cylinder body, form annular gap.
Further, vibration damper also comprises locking nut, is arranged on the outside of the second outer cylinder body.
Further, damper element is spring.
The present invention passes through said structure; both the function of noise reduction, vibration isolation can realize conventional operation time, also can be in the situation such as such as earthquake, prevents the problems such as being shifted, toppling over appears in vibration member; can protect vibration member, parts and equipment not around to be damaged, there is feature simple in structure.
Brief description of the drawings
Fig. 1 has schematically shown the schematic diagram of steel rope damper of the prior art;
Fig. 2 has schematically shown the schematic diagram of the vibration damper in the present invention; And
Fig. 3 has schematically shown the local enlarged diagram of Fig. 2.
Reference character in figure: 10, outer cylinder body; 11, the first outer cylinder body; 12, the second outer cylinder body; 20, inner barrel; 21, accommodating part; 22, supporting portion; 30, damper element; 40, the first retaining ring; 50, the first shock absorber; 60, the second shock absorber; 70, the second retaining ring; 90, regulate stop nut; 100, steel rope damper; 110, vibration member; 120, locking nut.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
The invention provides a kind of vibration damper, particularly a kind of core level spring damper, can be used for nuclear power station etc. has the occasion of antidetonation class requirement for some vibration member (as blower fan, compressor etc.), to solve the noise reduction of vibration member when the conventional operation, the problem of vibration isolation, ensure under earthquake loading, there is not displacement, topple in vibration member simultaneously yet.
Please refer to Fig. 2 and Fig. 3, this vibration damper comprises: outer cylinder body 10, offers pilot hole on outer cylinder body 10; Inner barrel 20, comprises accommodating part 21 and supporting portion 22, and supporting portion 22 comprises first end and the second end, the first end of supporting portion 22 is connected with accommodating part 21, accommodating part 21 is positioned at outer cylinder body 10, and supporting portion 22 is arranged in pilot hole actively, and the second distal process goes out the outside at outer cylinder body 10; Between outer cylinder body 10 and accommodating part 21, there is annular gap; Damper element 30, is arranged in outer cylinder body 10, and the first end of damper element 30 and outer cylinder body 10 butts, and the second end of damper element 30 is positioned at accommodating part 21; The first retaining ring 40, the first retaining rings 40 are arranged in annular gap, so that inner barrel 20, the first retaining ring 40 and outer cylinder body 10 upwards form be rigidly connected (also can be described as hard connection) in the footpath of vibration damper.Preferably, the first retaining ring 40 is made up of rigid material, for example can be made of copper, and can be also obviously to be made by other material, can play abrasionproof and reduce the effect due to fricative noise.Preferably, damper element 30 can be spring etc., can be used as insulator.
In one embodiment, the first retaining ring 40 is connected with the outer wall of accommodating part 21, and moves along with the motion of accommodating part 21.In another embodiment, the first retaining ring 40 can also be connected with the inwall of outer cylinder body 10.For example, accommodating part 21 can adopt structure cylindraceous, and supporting portion 22 is arranged on the top of structure cylindraceous, and inserts the pilot hole on outer cylinder body 10.
Please refer to Fig. 2 and Fig. 3, vibration member 110 is connected with inner barrel 20, and is positioned at the outside of outer cylinder body 10.Such as, when (earthquake etc.) in some cases, the vibration damper in the present invention is subject to the impulsive load of vertical and horizontal.
In the time of vibration member 110 conventional operation (while there is not the situations such as earthquake), vibration is delivered on damper element 30 by inner barrel 20, thereby play good damping effect, now, inner barrel 20 can be gone up relative outer cylinder body 10 along the longitudinal direction and move up and down, thereby utilize damper element 30 to play the effect of noise reduction, buffering, thereby ensured conventional operation.
While there is earthquake, vibration member 110 can produce horizontal, longitudinal impulsive load to the vibration damper in the present invention.In the time that lateral load increases, inner barrel 20 forms the entirety of a rigidity by the first retaining ring 40 and outer cylinder body 10, to avoid vibration member 110 that lateral displacement occurs.Owing to being provided with the rigid body being formed by inner barrel 20 and outer cylinder body 10 in the periphery of damper element 30; can make vibration damper in the present invention there is the ability of the lateral impact loading of bearing; even without vibration damper safety cover, also can not cause the damage of damper element 30 and other parts.
In annular gap between inner barrel and the outer cylinder body of vibration damper of the prior art, what conventionally arrange is to have flexible shock absorber (such as buffering ring etc.), therefore, in the time being subject to the lateral impact loading that earthquake produces in situation, between inner barrel and outer cylinder body, can not form and be rigidly connected, inner barrel relatively outer cylinder body produces lateral attitude, causes the problems such as vibration member 110 is shifted, topples over.
The present invention passes through said structure; inner barrel and outer cylinder body are formed to a rigid unitary by the first retaining ring 40; thereby solve above-mentioned technical problem; both the function of noise reduction, vibration isolation can realize conventional operation time; also can be in the situation such as such as earthquake; prevent the problems such as being shifted, toppling over appears in vibration member 110, can protect vibration member 110, parts and equipment not around to be damaged, there is feature simple in structure.
Preferably, please refer to vibration damper in Fig. 2 and Fig. 3 the present invention and also comprise that adjustable ground is arranged on the adjusting stop nut 90 on supporting portion 22.In the time of state of equilibrium, regulate between stop nut 90 and the top of outer cylinder body 10 and there is the first gap; In the time of buffer status, regulate stop nut 90 can with outer cylinder body 10 butts.Especially, vibration member 110 is arranged on the top that regulates stop nut 90.In vibration damper installation process, can regulate by adjusting stop nut 90 height of vibration member 110, to guarantee longitudinal mounting point of vibration member 110.What is more important, in the situation that earthquake etc. is subject to impact of collision load, when after damper element 30 compressions, regulate stop nut 90 to move downward, in the situation that impulsive load is enough large, regulates stop nut 90 also may contact with the end face of outer cylinder body 10, thereby formed the sports limiting to inner barrel 20, determine the maximum deformation quantity of damper element 30 from mechanical ceiling structure, ensured that damper element 30 is not damaged under earthquake loading.
Preferably, please refer to Fig. 2 and Fig. 3, vibration damper also comprises that the first shock absorber 50, the first shock absorbers 50 are arranged on the first gap location.Preferably, the first gap is greater than the normal deformation amount of damper element 30 in the time not being subject to earthquake loading, thus the resiliently deformable while having met better damper element 30 proper motion.Use the first shock absorber 50 can avoid vibration damper in the time touching, to send secondary noise, thereby improved noise reduction.
Preferably, please refer to Fig. 2 and Fig. 3, in the time of state of equilibrium, accommodating part 21 has the second gap with outer cylinder body 10 in the axial direction of vibration damper; In the time of buffer status, accommodating part 21 can with outer cylinder body 10 butts.In the situation that earthquake etc. is subject to impact of collision load, after damper element 30 stretches, inner barrel 20 can move upward, in the situation that impulsive load is enough large, the top of the accommodating part 21 of inner barrel 20 also may contact with the top inner wall of outer cylinder body 10, thereby form the sports limiting to inner barrel 20, determined the maximum deformation quantity of damper element 30 from mechanical ceiling structure, ensured that damper element 30 is not damaged under earthquake loading.
In the process of compressing at damper element 30, regulate stop nut 90 along with inner barrel 20 moves downward, and can contact with the top of outer cylinder body 10.Therefore, preferably, please refer to Fig. 2 and Fig. 3, vibration damper also comprises that the second shock absorber 60, the second shock absorbers 60 that are arranged on the second gap location are connected with outer cylinder body 10.Use the second shock absorber 60 can avoid vibration damper in the time touching, to send secondary noise, thereby improved noise reduction.
Preferably, the vibration damper in the present invention also comprises the second retaining ring 70 being arranged in pilot hole, and supporting portion 22 is through the second retaining ring 70, and supporting portion 22 is by upwards forming and be rigidly connected in the footpath of vibration damper between the second retaining ring 70 and outer cylinder body 10.On the one hand, the second retaining ring 70 plays antifrictional effect, to prevent generation wearing and tearing and noise between supporting portion 22 and pilot hole; On the other hand, the second retaining ring 70 can also play leading role, and inner barrel 20 is moved up and down by predetermined direction.Finally, in the time that lateral load increases, inner barrel 20 forms a rigid unitary by the second retaining ring 70 with outer cylinder body 10, to avoid vibration member generation lateral displacement, has further improved overturning-preventing ability.
In one embodiment, outer cylinder body 10 comprises between the first outer cylinder body 11 and the second outer cylinder body 12, the first outer cylinder bodies 11 and the second outer cylinder body 12 and being threaded connection, and pilot hole is positioned on the first outer cylinder body 11; The first end of damper element 30 and the second outer cylinder body 12 butts.Preferably, between accommodating part 21 and the second outer cylinder body 12, form above-mentioned annular gap.Be threaded connection, the spring deflection that can regulate easily vibration damper to allow, makes damper element 30 in normal deformation state.Especially, the diameter of the first outer cylinder body 11 is greater than the diameter of the second outer cylinder body 12, and is provided with on the outer wall of the second outer cylinder body 12 the above-mentioned screw thread matching on the inwall of the first outer cylinder body 11, and like this, the two just can couple together by this screw thread adjustable ground.
In a preferred embodiment, vibration damper also comprises locking nut 120, is arranged on the outside of the second outer cylinder body 12, to ensure that inside and outside cylindrical shell can not occur loosening because of the screw thread of Long-term Vibration between making it.
Preferably, the material of the first shock absorber 50 and the second shock absorber 60 can be selected neoprene, certainly also can select other material, as long as the effect making a noise when playing shock absorbing power and avoiding touching.
The invention provides a kind of simple in structure, installation, vibration damper easy to use, it can play vibration isolating effect in the time of vibration member conventional operation, can ensure that again vibration member is not subjected to displacement, overturning in the time earthquake occurring or have powerful impact force, thereby ensure that vibration member is not damaged.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a vibration damper, is characterized in that, comprising:
Outer cylinder body (10), described outer cylinder body offers pilot hole on (10);
Inner barrel (20), comprise accommodating part (21) and supporting portion (22), described supporting portion (22) comprises first end and the second end, the first end of described supporting portion (22) is connected with described accommodation section (21), described accommodation section (21) is positioned at described outer cylinder body (10), described supporting portion (22) is arranged in described pilot hole actively, and described the second distal process goes out the outside in described outer cylinder body (10); Between described outer cylinder body (10) and described accommodation section (21), there is annular gap;
Damper element (30), is arranged in described outer cylinder body (10), and the first end of described damper element (30) and described outer cylinder body (10) butt, and the second end of described damper element (30) is positioned at described accommodation section (21);
The first retaining ring (40), described the first retaining ring (40) is arranged in described annular gap, so that described inner barrel (20), described the first retaining ring (40) and described outer cylinder body (10) upwards form and are rigidly connected in the footpath of described vibration damper.
2. vibration damper according to claim 1, is characterized in that,
Described vibration damper also comprises that adjustable ground is arranged on the adjusting stop nut (90) on described supporting portion (22);
In the time of state of equilibrium, between described adjusting stop nut (90) and the top of described outer cylinder body (10), there is the first gap;
In the time of buffer status, described adjusting stop nut (90) can with described outer cylinder body (10) butt.
3. vibration damper according to claim 1, is characterized in that,
In the time of state of equilibrium, described accommodation section (21) have the second gap with described outer cylinder body (10) in the axial direction of described vibration damper;
In the time of buffer status, described accommodation section (21) can with described outer cylinder body (10) butt.
4. vibration damper according to claim 2, is characterized in that, described vibration damper also comprises the first shock absorber (50), and described the first shock absorber (50) is arranged on described the first gap location.
5. vibration damper according to claim 3, is characterized in that, described vibration damper also comprises the second shock absorber (60) that is arranged on described the second gap location, and described the second shock absorber (60) is connected with described outer cylinder body (10).
6. vibration damper according to claim 1, it is characterized in that, described vibration damper also comprises the second retaining ring (70) being arranged in described pilot hole, described supporting portion (22) is through described the second retaining ring (70), and described supporting portion (22) are by upwards forming and be rigidly connected in the footpath of described vibration damper between described the second retaining ring (70) and described outer cylinder body (10).
7. vibration damper according to claim 1, it is characterized in that, described outer cylinder body (10) comprises the first outer cylinder body (11) and the second outer cylinder body (12), between described the first outer cylinder body (11) and described the second outer cylinder body (12), be threaded connection, described pilot hole is positioned on described the first outer cylinder body (11); The first end of described damper element (30) and described the second outer cylinder body (12) butt.
8. vibration damper according to claim 7, is characterized in that, between described accommodation section (21) and described the second outer cylinder body (12), forms described annular gap.
9. vibration damper according to claim 7, is characterized in that, described vibration damper also comprises locking nut (120), is arranged on the outside of described the second outer cylinder body (12).
10. vibration damper according to claim 1, is characterized in that, described damper element (30) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149636.8A CN104121315A (en) | 2013-04-26 | 2013-04-26 | Damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149636.8A CN104121315A (en) | 2013-04-26 | 2013-04-26 | Damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121315A true CN104121315A (en) | 2014-10-29 |
Family
ID=51766865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310149636.8A Pending CN104121315A (en) | 2013-04-26 | 2013-04-26 | Damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121315A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508485A (en) * | 2016-01-28 | 2016-04-20 | 日立电梯（中国）有限公司 | Damping device and elevator |
| CN105937982A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Improved dual-step double-precision weighing sensor |
| CN105937949A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step weighing sensor |
| CN105937979A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step double-precision weighing sensor |
| CN105937929A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step dual-precision electronic weighing scale having adjusting mechanism |
| CN105937935A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step dual-precision electronic weighing scale with adjusting function |
| CN105973388A (en) * | 2016-01-20 | 2016-09-28 | 申俊 | Adjustable two-step weighing electronic scale |
| CN110469612A (en) * | 2019-03-21 | 2019-11-19 | 辽宁同泽减震器有限公司 | A kind of high-damping metal damper |
| CN111022296A (en) * | 2019-12-19 | 2020-04-17 | 福州市金政捷制冷设备有限公司 | Inhale shake type compressor |
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| DE1909706A1 (en) * | 1969-02-14 | 1970-10-08 | Kawasaki Heavy Ind Ltd | Method and device for vibration and shock isolation |
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| CN2755350Y (en) * | 2004-11-22 | 2006-02-01 | 李杨 | Vibration damper of spring |
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| KR200441629Y1 (en) * | 2007-03-12 | 2008-08-28 | 이현아 | Preventing Vibration Frame Capable Of Adjusting Height |
| CN102422049A (en) * | 2009-04-03 | 2012-04-18 | 洛德公司 | Forklift with anti-vibration mechanism |
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- 2013-04-26 CN CN201310149636.8A patent/CN104121315A/en active Pending
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| DE1909706A1 (en) * | 1969-02-14 | 1970-10-08 | Kawasaki Heavy Ind Ltd | Method and device for vibration and shock isolation |
| BE837531A (en) * | 1975-03-04 | 1976-05-03 | PROGRESSIVE CLOSING REGISTER | |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937982A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Improved dual-step double-precision weighing sensor |
| CN105937949A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step weighing sensor |
| CN105937979A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step double-precision weighing sensor |
| CN105937929A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step dual-precision electronic weighing scale having adjusting mechanism |
| CN105937935A (en) * | 2016-01-20 | 2016-09-14 | 申俊 | Dual-step dual-precision electronic weighing scale with adjusting function |
| CN105973388A (en) * | 2016-01-20 | 2016-09-28 | 申俊 | Adjustable two-step weighing electronic scale |
| CN105508485A (en) * | 2016-01-28 | 2016-04-20 | 日立电梯（中国）有限公司 | Damping device and elevator |
| CN105508485B (en) * | 2016-01-28 | 2018-02-02 | 日立电梯（中国）有限公司 | Vibration absorber and elevator |
| CN110469612A (en) * | 2019-03-21 | 2019-11-19 | 辽宁同泽减震器有限公司 | A kind of high-damping metal damper |
| CN111022296A (en) * | 2019-12-19 | 2020-04-17 | 福州市金政捷制冷设备有限公司 | Inhale shake type compressor |
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Application publication date: 20141029 |
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