CN203248597U - Vibration isolation device - Google Patents
Vibration isolation device Download PDFInfo
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- CN203248597U CN203248597U CN 201320246835 CN201320246835U CN203248597U CN 203248597 U CN203248597 U CN 203248597U CN 201320246835 CN201320246835 CN 201320246835 CN 201320246835 U CN201320246835 U CN 201320246835U CN 203248597 U CN203248597 U CN 203248597U
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- snubber
- vibration isolator
- hole
- pressurized
- isolation mounting
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Abstract
The utility model provides a vibration isolation device which comprises a rubber vibration isolation body, a vibration isolation seat, a pressed limiting device, a pulled limiting device and connecting fastening pieces, wherein the rubber vibration isolation body is of the structure that the middle portion is low and the outer portion is high and a first through hole is formed in the middle of the rubber vibration isolation body; the vibration isolation seat is of an annular structure and provided with a second through hole, the outer bottom face of the rubber vibration isolation body and the vibration isolation seat are fixed; the pressed limiting device is located in the second through hole and provided with a third through hole; the pulled limiting device is located below the pressed limiting device and provided with a fourth through hole; the rubber vibration isolation body, the pressed limiting device and the pulled limiting device are fixed by the connecting fastening pieces through the first through hole, the third through hole and the fourth through hole. The bottom face of the pressed limiting device and the bottom face of the vibration isolation seat are respectively used for being fixed with a base support. A first limiting gap is formed between the middle of the pressed limiting device and the middle of the vibration isolation seat. A second limiting gap is formed between the pressed limiting device and the base support. According to the technical scheme, the rigidity of the vibration isolation device is guaranteed and performance is good.
Description
Technical field
The utility model relates to mechanical technique, relates in particular to a kind of isolation mounting.
Background technique
Dynamic power machine is widely used in the various industries as the heart of various transport facilitys and engineering machinery.Along with the continuous progress of human society and advancing by leaps and bounds of scientific and technological level, dynamic power machine is just towards the future development of speed up, lightweight and high-power, and people also become to the vibration noise problem that improves constantly of the requirement of environment and travelling comfort level and are on the rise in addition.Improve the dynamic power machine dynamic performance, reduce its ocsillator strenght, be the direction that the designer makes great efforts always, and increasingly strict to Noise and Vibration Control of society, also so that the Noise and Vibration Control problem of dynamic power machine obtains unprecedented attention.
Control for the dynamic power machine vibration noise then mainly depends on good vibration isolator, existing rubber vibration isolator generally adopts the upper end to be connected with equipment support, the vibration isolator lower end is connected with installation framework (basis), the mode that is connected and fixed that links to each other by rubber between the vibration isolator upper and lower end.For improving the vibration isolation efficiency of dynamic power machine vibrating isolation system, the lower rigidity of the general employing of vibration isolator makes system frequency far below dynamic power machine excitation force (square) thereby frequency reaches the purpose of vibration damping.
Existing vibration isolator structure schematic representation comprises metal washer 11, rubber vibration isolator 12 and vibration isolator seat 13 as shown in Figure 1 from top to bottom successively.Metal washer 11 is fixed with the sulfuration of rubber vibration isolator 12 upper surfaces, rubber vibration isolator 12 middle parts are embedded with a steel bushing 14, steel bushing 14 is connected with rubber vibration isolator 12 sulfurations, steel bushing 14 has internal thread to be used for being connected with the dynamic power machine fitting seat, and vibration isolator seat 13 is connected with the sulfuration of rubber vibration isolator 12 lower ends and is used for fixedly vibration isolator.
The lower rigidity of the general employing of vibration isolator makes system frequency far below dynamic power machine excitation force (square) frequency.But the rigidity that vibration isolator is lower can cause again the stability of a system poor, and dynamic power machine may the excessive situation of displacement occur in overload and unsteady-stage conditions.More seriously, if rubber separates between the vibration isolator upper and lower end because the reason such as aging or tired occurs damagedly, may make the dynamic power machine upset in the dynamic power machine tilting moment in greater than the situation of gravitational moment, cause serious accident.
The model utility content
The utility model provides a kind of isolation mounting, is used for optimizing the performance of existing vibration isolator.
The utility model provides a kind of isolation mounting, wherein, comprising:
Rubber vibration isolator is the low and outside high concave structure in middle part, and described rubber vibration isolator middle part offers the first through hole;
The vibration isolator seat, loop configuration has the second through hole, and the outside bottom surface of described rubber vibration isolator and described vibration isolator seat are fixed;
The pressurized snubber is positioned at described the second through hole, and described pressurized snubber has third through-hole;
The tension snubber be positioned at the below of described pressurized snubber, and described tension snubber has fourth hole;
Connect fastening piece, by described the first through hole, third through-hole and fourth hole fixing described rubber vibration isolator, pressurized snubber and tension snubber;
Wherein, the bottom surface of described pressurized snubber and described vibration isolator seat is all for fixing with base support;
Have the first spacing gap between the middle part of described pressurized snubber and described rubber vibration isolator, have the second spacing gap between the base support described tension snubber and described.
Aforesaid isolation mounting, preferably,
Described pressurized snubber and described tension snubber are block rubber.
Aforesaid isolation mounting, preferably,
The described first spacing gap is 1mm-3mm.
Aforesaid isolation mounting, preferably,
The described second spacing gap is 1mm-3mm.
Aforesaid isolation mounting, preferably,
Described rubber vibration isolator is fixed with metal washer away from sulfuration on the surface of described vibration isolator seat.
Aforesaid isolation mounting, preferably,
Be provided with steel bushing between the inwall of described the first through hole and the described connection fastening piece, the inwall sulfuration of described steel bushing and described the first through hole is fixing.
Aforesaid isolation mounting, preferably,
Described tension snubber is fixed with back-up ring away from sulfuration on the side of described pressurized snubber.
Aforesaid isolation mounting, preferably,
Described connection fastening piece is connecting bolt.
Aforesaid isolation mounting, preferably,
The free end of described connecting bolt is stepped, and end is provided with outside thread.
The isolation mounting that technique scheme provides; pressurized/tension snubber can effectively limit the compression of isolation mounting and draw high displacement; share the suffered power of rubber vibration isolator; the protection rubber vibration isolator is pressurized or tension no matter; all be unlikely to be out of shape excessive, prevent that rubber vibration isolator is because of stressed excessive the damage.Rubber vibration isolator and the certain rigidity of tool still after pressure limiting/limit draws snubber in parallel, contact impact is soft impulse, can avoid the destruction of machinery, also can make system have certain vibration isolating effect by rational parameter matching.
Description of drawings
Fig. 1 is existing vibration isolator structure schematic representation;
The isolation mounting structural representation that Fig. 2 provides for the utility model embodiment.
Embodiment
The isolation mounting structural representation that Fig. 2 provides for the utility model embodiment.
The utility model embodiment provides a kind of isolation mounting, wherein, comprises rubber vibration isolator 1, vibration isolator seat 2, pressurized snubber 3, tension snubber 4 and is connected fastening piece 5.Rubber vibration isolator 1 is the low and outside high concave structure in middle part, and described rubber vibration isolator 1 middle part offers the first through hole.Vibration isolator seat 2 is loop configuration, has the second through hole, and the outside bottom surface of described rubber vibration isolator 1 and described vibration isolator seat 2 are fixing.Pressurized snubber 3 is positioned at described the second through hole, and described pressurized snubber 3 has third through-hole.Tension snubber 4 is positioned at the below of described pressurized snubber 3, and described tension snubber 4 has fourth hole.Connect fastening piece 5 by described the first through hole, third through-hole and fourth hole fixing described rubber vibration isolator 1, pressurized snubber 3 and tension snubber 4.Wherein, the bottom surface of described pressurized snubber 3 and described vibration isolator seat 2 is all for fixing with base support 7; Have the first spacing gap delta 1 between the middle part of pressurized snubber 3 and rubber vibration isolator 1, described tension snubber 4 and base support 7 between have the second spacing gap delta 2.
The dynamic power machine 8(that above-mentioned isolation mounting to need to be used for vibration damping is such as oil hydraulic pump etc.) be fixed on base support 7, Fig. 2 has illustrated the scheme of installation of above-mentioned vibration damping equipment.Offer mounting hole on dynamic power machine 8 and the base support 7, connect fastening piece 5 and wear in turn dynamic power machine 8, rubber vibration isolator 1, pressurized snubber 3, base support 7 and tension snubber 4, to connect above-mentioned all parts.Base support 7 supports vibration isolator seat 2 and pressurized snubber 3 simultaneously.
When dynamic power machine 8 pressurized, this pressure is passed to rubber vibration isolator 1.When dynamic power machine 8 nominal situation, the compression of rubber vibration isolator 1 and draw high displacement and generally can not surpass the spacing gap (i.e. the first spacing gap delta 1 and the second spacing gap delta 2) of reserving is to guarantee the good vibration isolating effect of isolation mounting.When overload (or fault) operating modes appear in dynamic power machine 8, and in startup and the stopping process during through the isolation mounting resonance speed, the displacement of rubber vibration isolator 1 may increase.When the compression displacement of rubber vibration isolator 1 surpassed the first spacing gap delta 1 of reserving, the lower surface at vibration isolator middle part can contact with pressurized snubber 3.
In like manner, when dynamic power machine 8 tension, this pull transfer is to rubber vibration isolator 1 and tension snubber 4.When vibration isolator draws high the second spacing gap delta 2 that displacement surpass to reserve, tension snubber 4 can contact with the lower surface of base support 7, it is in parallel with pressurized/tension snubber 4 that be equivalent to rubber vibration isolator 1 this moment, isolation mounting rigidity obviously increases, 1 displacement of restriction rubber vibration isolator is excessive, guarantees the stability of a system of whole isolation mounting.Simultaneously, the certain rigidity of tool still after vibration isolator and pressurized/tension snubber 4 are in parallel also can make system have certain vibration isolating effect by rational parameter matching.Because the reason such as aging or tired occurs having run through base support 7 because connect fastening piece 5 when damaged, can effectively prevent that the upset accident from appearring in dynamic power machine 8 when rubber vibration isolator 1.
The above-mentioned first spacing gap delta 1 is in order to make rubber vibration isolator 1 during pressurized, not touch pressurized snubber 3 under nominal situation; In case the pressure that rubber vibration isolator 1 is subject to is greater than nominal situation, rubber vibration isolator 1 deformation quantity increases, and will touch on the tension snubber 4, to increase the rigidity of whole isolation mounting.
The above-mentioned second spacing gap delta 2 is in order to make rubber vibration isolator 1 during tension, not touch tension snubber 4 under nominal situation; In case the pulling force that rubber vibration isolator 1 is subject to is greater than nominal situation, rubber vibration isolator 1 deformation quantity increases, and tension snubber 4 will touch on the base support 7, to increase the rigidity of whole isolation mounting.
Pressurized snubber 3 and tension snubber 4 all should possess certain elastic member, and specific implementation has multiple, such as employing, and spring, sheet spring, block rubber etc.
The isolation mounting that technique scheme provides; pressurized/tension snubber can effectively limit the compression of isolation mounting and draw high displacement; share the suffered power of rubber vibration isolator; the protection rubber vibration isolator is pressurized or tension no matter; all be unlikely to be out of shape excessive, prevent that rubber vibration isolator is because of stressed excessive the damage.Rubber vibration isolator and the certain rigidity of tool still after pressure limiting/limit draws snubber in parallel, contact impact is soft impulse, can avoid the destruction of machinery, also can make system have certain vibration isolating effect by rational parameter matching.
In the present embodiment, particularly, described pressurized snubber 3 and described tension snubber 4 are block rubber.This time specifically adopt columniform block rubber, and the upper and lower surface of block rubber is all the plane.
Rule of thumb be worth, alternatively, the described first spacing gap delta 1 is 1mm-3mm.The described second spacing gap delta 2 is 1mm-3mm.
Above-mentioned gap width can satisfy the vibration isolation requirement of dynamic power machine commonly used.
Referring to Fig. 2, herein, described rubber vibration isolator 1 is fixed with metal washer 9 away from sulfuration on the surface of described vibration isolator seat 2.
Referring to Fig. 2, be provided with steel bushing 6 between the inwall of described the first through hole and the described connection fastening piece 5, described steel bushing 6 is fixing with the inwall sulfuration of described the first through hole.Steel bushing 6 can reduce to connect the wearing and tearing of 5 pairs of rubber vibration isolators 1 of fastening piece.
Referring to Fig. 2, described connection fastening piece 5 is specially connecting bolt.
Referring to Fig. 2, the free end of connecting bolt is stepped, and end is provided with outside thread, to connect tightening nut.
Referring to Fig. 2, described tension snubber 4 is fixed with back-up ring 10 away from sulfuration on the side of described pressurized snubber 3.After back-up ring 10 was set, the tightening nut on the connecting bolt can be resisted against on the back-up ring 10, with fixing back-up ring 10.
The isolation mounting that technique scheme provides runs through base support with connecting bolt, can prevent that the upset accident from appearring in dynamic power machine under rubber vibration isolator such as breaks at the extreme case, and equipment is played a protective role.Such scheme is synthetic as a whole with rubber vibration isolator, the pressurized/tension snubber of routine, and compact structure does not take installing space in addition.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment's technological scheme of the utility model.
Claims (9)
1. an isolation mounting is characterized in that, comprising:
Rubber vibration isolator is the low and outside high concave structure in middle part, and described rubber vibration isolator middle part offers the first through hole;
The vibration isolator seat, loop configuration has the second through hole, and the outside bottom surface of described rubber vibration isolator and described vibration isolator seat are fixed;
The pressurized snubber is positioned at described the second through hole, and described pressurized snubber has third through-hole;
The tension snubber be positioned at the below of described pressurized snubber, and described tension snubber has fourth hole;
Connect fastening piece, by described the first through hole, third through-hole and fourth hole fixing described rubber vibration isolator, pressurized snubber and tension snubber;
Wherein, the bottom surface of described pressurized snubber and described vibration isolator seat is all for fixing with base support;
Have the first spacing gap between the middle part of described pressurized snubber and described rubber vibration isolator, have the second spacing gap between the base support described tension snubber and described.
2. isolation mounting according to claim 1 is characterized in that, described pressurized snubber and described tension snubber are block rubber.
3. isolation mounting according to claim 1 and 2 is characterized in that, the described first spacing gap is 1mm-3mm.
4. isolation mounting according to claim 1 and 2 is characterized in that, the described second spacing gap is 1mm-3mm.
5. isolation mounting according to claim 1 is characterized in that,
Described rubber vibration isolator is fixed with metal washer away from sulfuration on the surface of described vibration isolator seat.
6. isolation mounting according to claim 1 is characterized in that, is provided with steel bushing between the inwall of described the first through hole and the described connection fastening piece, and the inwall sulfuration of described steel bushing and described the first through hole is fixing.
7. isolation mounting according to claim 1 is characterized in that, described tension snubber is fixed with back-up ring away from sulfuration on the side of described pressurized snubber.
8. isolation mounting according to claim 1 is characterized in that, described connection fastening piece is connecting bolt.
9. isolation mounting according to claim 8 is characterized in that,
The free end of described connecting bolt is stepped, and end is provided with outside thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320246835 CN203248597U (en) | 2013-05-08 | 2013-05-08 | Vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320246835 CN203248597U (en) | 2013-05-08 | 2013-05-08 | Vibration isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248597U true CN203248597U (en) | 2013-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320246835 Expired - Lifetime CN203248597U (en) | 2013-05-08 | 2013-05-08 | Vibration isolation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203248597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578248A (en) * | 2019-01-18 | 2019-04-05 | 南通大通宝富风机有限公司 | A kind of seat structure of magnetic suspension vapor compressor |
| CN110594330A (en) * | 2019-07-19 | 2019-12-20 | 中国船舶重工集团公司第七一九研究所 | Frequency conversion isolator |
-
2013
- 2013-05-08 CN CN 201320246835 patent/CN203248597U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578248A (en) * | 2019-01-18 | 2019-04-05 | 南通大通宝富风机有限公司 | A kind of seat structure of magnetic suspension vapor compressor |
| CN110594330A (en) * | 2019-07-19 | 2019-12-20 | 中国船舶重工集团公司第七一九研究所 | Frequency conversion isolator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063035 Hebei province Fengrun District Tangshan City Road No. 3 factory Patentee after: CRRC TANGSHAN Co.,Ltd. Address before: 063035 Hebei province Fengrun District Tangshan City Road No. 3 factory Patentee before: TANGSHAN RAILWAY VEHICLE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |