CN203702973U - Piston column type vibration isolator - Google Patents
Piston column type vibration isolator Download PDFInfo
- Publication number
- CN203702973U CN203702973U CN201420067386.3U CN201420067386U CN203702973U CN 203702973 U CN203702973 U CN 203702973U CN 201420067386 U CN201420067386 U CN 201420067386U CN 203702973 U CN203702973 U CN 203702973U
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- China
- Prior art keywords
- cavity
- cylinder
- vibration isolator
- resistance cylinders
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000013016 damping Methods 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims description 17
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 description 7
- 238000007667 floating Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of vibration isolators and particularly relates to a piston column type vibration isolator which comprises an upper top plate, an elastic element, a damping device and a lower bottom plate, wherein the damping device comprises a damping cylinder fixed on the lower bottom plate and containing damping liquid. The damping device further comprises a piston rod extending into the damping cylinder from the upper portion of the damping cylinder, the upper end of the piston rod is connected with the upper top plate, a piston head is arranged at the lower end of the piston rod, and at least a part of the piston rod is positioned in the damping liquid. The piston column type vibration isolator is compact in structure, small in size, strong in applicability and good in sealing effect.
Description
Technical field
The utility model belongs to track traffic vibration isolation field, relates in particular to a kind of piston column type vibration isolator.
Background technique
Along with the high speed development of national economy, track traffic is convenient, quick, punctual, energy-conservation with it, effectively alleviate the advantage that traffic above-ground is blocked up, and becomes rapidly the Hot spots for development that urban transportation is built.But its vibration and noise pollutes also can be to produce certain negative effect along thread environment, must take necessary vibration insulation and noise reduction measure the same period building.What wherein effect of vibration and noise reduction was best is the floating plate vibration isolation ballast bed system that damping spring forms.
In floating plate vibration isolation ballast bed system, damping spring vibration isolator is its core component.In the prior art, there is the damping spring vibration isolator of a kind of spring and the integrated use of liquid damping material, as the damping spring vibration isolator of disclosed damped cylinder underlying in patent CN 201396393Y, this vibration isolator has improved the damping capacity of system greatly, and has improved sealing.But, this vibration isolator by arranging separately damped cylinder and kinetoplast below elastic element, increase the height of damping spring vibration isolator, because track structure height is limited, floating plate vibration isolation railway roadbed thickness of slab also just has certain limit, therefore, too high damping spring vibration isolator is difficult to be positioned in floating plate vibration isolation ballast bed system.
Therefore,, for above deficiency, the utility model is badly in need of providing a kind of new piston column type vibration isolator.
Model utility content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of piston column type vibration isolator, and this vibration isolator structure compactness, volume is small and exquisite and applicability is strong, has good sealing effect simultaneously.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of piston column type vibration isolator, comprises upper plate, elastic element, damping device and lower shoe, wherein, described damping device comprises the damped cylinder being fixed on described lower shoe, in described damped cylinder, accommodates damp liquid; Described damping device also comprises from described damped cylinder top and stretches into the piston rod in described damped cylinder, and the upper end of described piston rod is connected with described upper plate, and the lower end of described piston rod is provided with piston head, and described piston head is placed in described damp liquid at least partly.
Wherein, described damped cylinder comprises and is fixed on described lower shoe and open-topped resistance cylinders and be positioned at the cylinder cap of described resistance cylinders opening end, described resistance cylinders and described cylinder cap form airtight damping cavity, and described piston rod extend in described damped cylinder through described cylinder cap.
Wherein, described damped cylinder comprises and is fixed on described lower shoe and the resistance cylinders of both ends open, be positioned at the cylinder cap at described resistance cylinders top, and be positioned at the end cap of described resistance cylinders bottom, described resistance cylinders, described cylinder cap and described end cap form airtight damping cavity, described piston rod extend in described damped cylinder through described cylinder cap, described damped cylinder also comprises the gland and the slide pad that are arranged in turn from top to bottom in described damped cylinder, described damping cavity is divided into successively the first cavity by described gland and described slide pad, the second cavity and the 3rd cavity, on described gland, be provided with flowing hole, described the first cavity and described the second cavity communicate with each other by the flowing hole on described gland, in described the 3rd cavity, be filled with gas.
Wherein, at the surface of contact place of described slide pad and described resistance cylinders, O-ring seals is housed, at the surface of contact place of described end cap and described resistance cylinders, O-ring seals is housed.
Wherein, described cylinder cap and described resistance cylinders are threaded connection, and at the surface of contact place of described cylinder cap and described resistance cylinders, O-ring seals are housed.
Wherein, the surface of contact place of described piston rod and described cylinder cap is provided with slipper seal.
(3) beneficial effect
The piston column type vibration isolator that technique scheme provides, comprise upper plate, elastic element, damping device and lower shoe, wherein, damped cylinder in damping device is arranged between upper plate and lower shoe, to reduce the height of vibration isolator, this vibration isolator can be arranged in the floating plate vibration isolation road bed board that thickness is less, therefore improve the applicability of this vibration isolator.In addition, this apparatus structure compactness, volume is small and exquisite, good seal performance.Further, by gland and slide pad are set in damped cylinder, damping cavity is separated into the first cavity, the second cavity and the 3rd cavity, further to improve the damping of this vibration isolator.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of a kind of piston column type vibration isolator of the present utility model;
Fig. 2 is the structural representation of the damping device in the piston column type vibration isolator in Fig. 1;
Fig. 3 is the structural representation of another preferred embodiment of a kind of piston column type vibration isolator of the present utility model;
Fig. 4 is the structural representation of the damping device in the piston column type vibration isolator in Fig. 3.
Wherein: 1-upper plate; 2-elastic element; 3-damping device; 31-piston rod; 32-cylinder cap; 33-resistance cylinders; 34-damp liquid; 35-piston head; 36-gland; 37-slide pad; 38-end cap; 4-lower shoe; 5-the first cavity; 6-the second cavity; 7-the 3rd cavity.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " on ", orientation or the position relationship of the indication such as D score, " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.
Embodiment 1
Fig. 1 and Figure 2 shows that preferred embodiment of a kind of piston column type vibration isolator of the present utility model.According to this embodiment, as shown in Figure 1, this vibration isolator comprises upper plate 1, elastic element 2, damping device 3 and lower shoe 4, elastic element 2 is between upper plate 1 and lower shoe 4, damping device 3 comprises the damped cylinder being fixed on lower shoe 4, in damped cylinder, accommodate damp liquid 34, wherein the liquid level height of damp liquid 34 can design accordingly according to the required damping ratio providing.This damping device 3 also comprises and extend into the piston rod 31 in damped cylinder from damped cylinder top, the upper end of this piston rod 31 is threaded with upper plate 4, piston head 35 is threaded connection in the lower end of piston rod 31, and this piston head 35 is placed in damp liquid 34 at least partly.This vibration isolator is arranged on the damped cylinder in damping device between upper plate and lower shoe, to reduce the height of vibration isolator, this vibration isolator can be arranged in the floating plate vibration isolation road bed board that thickness is less, has therefore improved the applicability of this vibration isolator.In addition, this apparatus structure compactness, volume is small and exquisite, good seal performance.
In the time that vibration isolator is subject to impacting, upper plate 1 produces vibration, force elastic element 2 and damping device 3 to move downward thereupon, be that piston rod 31 moves downward, now, piston head 35 interacts and produces damping force with damp liquid 34, thereby provides corresponding damping ratio to vibration isolator, and eliminate external vibration with elastic element 2 actings in conjunction, play the effect of vibration insulation and noise reduction.
Particularly, as shown in Figure 2, damped cylinder comprises and is fixed on lower shoe 4 and open-topped resistance cylinders 33 and be positioned at the cylinder cap 32 of resistance cylinders 33 opening ends, and this resistance cylinders 33 forms airtight damping cavity together with cylinder cap 32, received damp liquid 34 in airtight damping cavity content.Cylinder cap 32 is threaded connection with resistance cylinders 33, in order to improve the sealing of damping cavity, at the surface of contact place of cylinder cap 32 and resistance cylinders 33, O-ring seals is housed.Piston rod 31 extend in resistance cylinders 33 through cylinder cap 32, and in order to guarantee the sealing of piston rod 31 in movement process, piston rod 31 is provided with slipper seal 10, for example lining and Sealing with the surface of contact place of cylinder cap 32.
Embodiment 2
Fig. 3 and another preferred embodiment that Figure 4 shows that a kind of piston column type vibration isolator of the present utility model.As different from Example 1, damped cylinder comprises and is fixed on lower shoe 4 and the resistance cylinders 33 of both ends open, is positioned at the cylinder cap 32 at resistance cylinders 33 tops, and be positioned at the end cap 38 of resistance cylinders 33 bottoms, wherein, resistance cylinders 33, cylinder cap 32 and end cap 38 form airtight damping cavity, have received damp liquid 34 in airtight damping cavity content.Piston rod 31 extend in damped cylinder through cylinder cap 32.In addition, this damped cylinder also comprises the gland 36 and the slide pad 37 that are arranged in turn from top to bottom in damped cylinder, wherein, damping cavity is divided into successively the first cavity 5, the second cavity 6 and the 3rd cavity 7 by gland 36 and slide pad 37, the first cavity 5 is formed by cylinder cap 32, resistance cylinders 33 and gland 36, and the second cavity 6 is formed by gland 36, resistance cylinders 33 and slide pad 37; On gland 36, be provided with flowing hole, the first cavity 5 and the second cavity 6 communicate with each other by the flowing hole on gland 36; And slide pad 37, resistance cylinders 33 form the 3rd airtight cavity 7 together with end cap 38, at the inner gassy of the 3rd cavity 7.This vibration isolator is by gland 36 and slide pad 37 are set in damped cylinder, damping cavity is separated into the first cavity 5, the second cavity 6 and the 3rd cavity 7, further to improve the damping of this vibration isolator.
In the time that vibration isolator is subject to impacting, upper plate 1 produces vibration, force elastic element 2 and damping device 3 to move downward thereupon, also be that piston rod 31 moves downward, damp liquid 34 is compressed, flowing hole by gland 36 flows into the second cavity 6 from the first cavity 5, slide pad 37 is moved downward and compress the gas in the 3rd cavity 7.This damping device 3 can provide the damping ratio of corresponding size according to actual needs, and eliminates external vibration with elastic element 2 actings in conjunction, plays the effect of vibration insulation and noise reduction.
In order to improve the sealing of damping cavity, with the surface of contact place of resistance cylinders 33, O-ring seals is housed at slide pad 37, and at the surface of contact place of end cap 38 and resistance cylinders 33, O-ring seals is housed.
Above mode of execution is only for the utility model is described, and is not limitation of the utility model, and the those of ordinary skill in relevant technologies field, in the situation that not departing from spirit and scope of the present utility model, can also make a variety of changes and modification.Therefore all technological schemes that are equal to also belong to protection category of the present utility model.
Claims (6)
1. a piston column type vibration isolator, comprises upper plate, elastic element, damping device and lower shoe, it is characterized in that, described damping device comprises the damped cylinder being fixed on described lower shoe, in described damped cylinder, accommodates damp liquid; Described damping device also comprises from described damped cylinder top and stretches into the piston rod in described damped cylinder, and the upper end of described piston rod is connected with described upper plate, and the lower end of described piston rod is provided with piston head, and described piston head is placed in described damp liquid at least partly.
2. vibration isolator according to claim 1, it is characterized in that, described damped cylinder comprises and is fixed on described lower shoe and open-topped resistance cylinders and be positioned at the cylinder cap of described resistance cylinders opening end, described resistance cylinders and described cylinder cap form airtight damping cavity, and described piston rod extend in described damped cylinder through described cylinder cap.
3. vibration isolator according to claim 1, it is characterized in that, described damped cylinder comprises and is fixed on described lower shoe and the resistance cylinders of both ends open, be positioned at the cylinder cap at described resistance cylinders top, and be positioned at the end cap of described resistance cylinders bottom, described resistance cylinders, described cylinder cap and described end cap form airtight damping cavity, described piston rod extend in described damped cylinder through described cylinder cap, described damped cylinder also comprises the gland and the slide pad that are arranged in turn from top to bottom in described damped cylinder, described damping cavity is divided into successively the first cavity by described gland and described slide pad, the second cavity and the 3rd cavity, on described gland, be provided with flowing hole, described the first cavity and described the second cavity communicate with each other by the flowing hole on described gland, in described the 3rd cavity, be filled with gas.
4. vibration isolator according to claim 3, is characterized in that, at the surface of contact place of described slide pad and described resistance cylinders, O-ring seals is housed, and at the surface of contact place of described end cap and described resistance cylinders, O-ring seals is housed.
5. according to the vibration isolator described in any one in claim 2-4, it is characterized in that, described cylinder cap and described resistance cylinders are threaded connection, and at the surface of contact place of described cylinder cap and described resistance cylinders, O-ring seals are housed.
6. according to the vibration isolator described in any one in claim 2-4, it is characterized in that, the surface of contact place of described piston rod and described cylinder cap is provided with slipper seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067386.3U CN203702973U (en) | 2014-02-14 | 2014-02-14 | Piston column type vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067386.3U CN203702973U (en) | 2014-02-14 | 2014-02-14 | Piston column type vibration isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702973U true CN203702973U (en) | 2014-07-09 |
Family
ID=51053420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420067386.3U Expired - Lifetime CN203702973U (en) | 2014-02-14 | 2014-02-14 | Piston column type vibration isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224430A (en) * | 2016-08-26 | 2016-12-14 | 珠海格力电器股份有限公司 | Vibration absorber and there is its washing machine |
| CN108167375A (en) * | 2018-02-23 | 2018-06-15 | 四川大学 | Variable damping vibration isolator and railway roadbed vibrating isolation system |
-
2014
- 2014-02-14 CN CN201420067386.3U patent/CN203702973U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224430A (en) * | 2016-08-26 | 2016-12-14 | 珠海格力电器股份有限公司 | Vibration absorber and there is its washing machine |
| CN106224430B (en) * | 2016-08-26 | 2019-06-04 | 珠海格力电器股份有限公司 | Vibration absorber and washing machine with it |
| CN108167375A (en) * | 2018-02-23 | 2018-06-15 | 四川大学 | Variable damping vibration isolator and railway roadbed vibrating isolation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 102402 No.32, Guangmao Road, Doudian Town, Fangshan District, Beijing Patentee after: Beijing Jiuzhou first rail Environmental Technology Co.,Ltd. Address before: 100026, Beijing Zhongguancun science and Technology Park, Daxing pharmaceutical industry base, Tianhe West Road, No. 1, 28, 1-2, Patentee before: BEIJING JIUZHOUYIGUI SHOCK AND VIBRATION ISOLATION Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |