CN207176483U - A kind of adjustable viscous damper - Google Patents
A kind of adjustable viscous damper Download PDFInfo
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- CN207176483U CN207176483U CN201721062992.6U CN201721062992U CN207176483U CN 207176483 U CN207176483 U CN 207176483U CN 201721062992 U CN201721062992 U CN 201721062992U CN 207176483 U CN207176483 U CN 207176483U
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Abstract
The utility model discloses a kind of adjustable viscous damper, it includes being provided with the cylinder barrel of circular seal chamber, the piston being arranged in annular seal space, the guide rod with piston movement, piston is when mobile and the inner surface of the cylinder of cylinder barrel keeps in sealing contact, at least one damping hole is provided with the cylinder of cylinder barrel, corresponding to each damping hole, two openings of connection damping hole and annular seal space are offered on the cylinder of cylinder barrel, each opening has the interior side opening being opened on the inner surface of cylinder；Corresponding in two openings of each damping hole, the interior side opening of one of opening is arranged at the one end of damping cavity in axial direction, and the interior side opening of another opening is arranged at the other end of damping cavity in axial direction；When piston moves, all openings are all held at being in connected state with annular seal space and damping hole.The utility model has longer damping hole, and in the case of with equal length damping hole, the utility model has less volume.
Description
Technical field
It the utility model is related to building, bridge earthquake resistance is set up defences field, more particularly to a kind of adjustable viscous damper.
Background technology
Viscous damper is widely used in building, bridge etc. and provided fortification against earthquakes as a kind of effective dissipative damping device
Field.The damp channel of traditional viscous damper is arranged on piston, and the size of damp channel has strict limitation, such as
The size of fruit damp channel exceedes design deviation, it is necessary to when the shape and size to damp channel are modified, and will must just hinder
Buddhist nun's device could be modified after taking apart to the shape and size of damp channel, and this causes the processing cost of damper significantly to rise
It is high.
In addition, the parameter of viscous damper and the length of damp channel have larger relation, in traditional viscous damper
In, the scheme that the increase of damp channel uses is usually to increase the height of piston, and this causes the cylinder barrel of damper to be also required to synchronization
Lengthen, the cost of damper is also correspondingly dramatically increased.
Utility model content
It is at least to solve above-mentioned subproblem, the utility model proposes a kind of adjustable viscous damper, the viscous resistance
Buddhist nun's utensil has longer damping hole, and in the case of with equal length damping hole, the utility model has less volume, tool
The technical scheme of body is as follows：
A kind of adjustable viscous damper, it includes the work for being provided with the cylinder barrel of circular seal chamber, being arranged in annular seal space
Plug, and with piston the axial movement of annular seal space interior edge cylinder barrel guide rod, the piston when mobile and cylinder barrel cylinder
Inner surface keep it is in sealing contact, at least one damping hole is provided with the cylinder of cylinder barrel, corresponding to each damping hole, in cylinder
Two openings of connection damping hole and annular seal space are offered on the cylinder of cylinder, each opening has the interior table for being opened in cylinder
Interior side opening on face；
Corresponding in two openings of each damping hole, the interior side opening of one of opening is arranged at damping cavity edge
One end of axial direction, the interior side opening of another opening are arranged at the other end of damping cavity in axial direction；Moved in piston
When dynamic, all openings are all held at being in connected state with annular seal space and damping hole.
In the utility model, damping hole is formed in cylinder, and damping hole at least can be in the whole length of annular seal space
Extension, compare prior art, and the height that the damp channel formed as described in damping hole is at least piston adds twice of damping
Device stroke, in the case of the damp channel of equal length, after damping hole is arranged in cylinder, the length of damp channel
No longer influenceed by piston thickness, in the case where ensureing piston intensity, the thickness of piston can be made thin, in damper
In the case of stroke identical, the length of the part such as the cylinder barrel of damper, guide rod can greatly shorten, so that the processing of damper
Manufacturing cost reduces.Meanwhile can shorten the entire length of damper, some special scenes are applicable to, such as to damper
Length has the place strictly limited.
Specifically, at least two damping holes are provided with the cylinder of cylinder barrel, at least two damping hole is along cylinder barrel
It is axially extending, and be evenly arranged around the axis of cylinder barrel.After more than two damping holes are set, piston can be made in mobile when institute
The power being subject to avoids piston run-off the straight phenomenon in moving process than more uniform, piston is produced with inner wall of cylinder and seriously rubs
Wipe, destroy inner wall of cylinder, reduce the sealing between piston and cylinder barrel, the output of damper is affected, while reduce resistance
The service life of Buddhist nun's device.
Further, on the end face for the cylinder that at least one end of the damping hole extends to cylinder barrel, formed and lead to opening for outside
Mouth end, is detachably provided with closeouts on openend.After setting openend, damping hole can carry out damping hole by openend
Open up, facilitate the processing of damping hole, while easily function of the present utility model can be adjusted, especially it gone out
The adjustment of power, when needing to increase output of the present utility model, closeouts can be opened, then by the sealing of a sealing
Part is extend into damping hole, any one opening in two openings is blocked, the damping hole will be ineffective, and then right
Parameter of the present utility model including contributing is adjusted.
Specifically, rod member can be actively provided with least one damping hole, the outer peripheral face of rod member and damping hole
There is the gap of connection opening between inner peripheral surface.Or hollow pipe is provided with least one damping hole, it is right on hollow pipe
A flowing hole, the inner chamber of the flowing hole connection hollow pipe and opening should be provided with each opening.Rod member with it is hollow
After pipe is placed in damping hole, the circulation area of damping hole can be adjusted, and then influences output and other performance of the present utility model.
Further, formed and connected between the anti-blocking portion and the inner peripheral surface of cylinder formed with anti-blocking portion on piston outer periphery face
The anti-blocking chamber of annular seal space, when piston is moved to the side of annular seal space, the opening positioned at the side can connect through the anti-blocking chamber
Logical annular seal space.Setting for anti-blocking portion can make being located in cylinder for opening in the case where not reducing the effective thickness of piston
The opening on surface can be located on the cylinder corresponding to annular seal space.Anti-blocking portion can be formed by the periphery surface chamfer of piston,
Or the one or both sides of the outer peripheral face in piston set radially inner depressed part.
Further, a seal, the inner chamber between two seals of cylinder barrel are separately installed with the both ends of cylinder barrel
Above-mentioned annular seal space is formed, the interconnecting part formed with communication seals chamber and an opening at least one seal.Specifically,
By the outer peripheral face of seal, radially inner side recessed is formed interconnecting part.Or interconnecting part is the connection being arranged in seal
Hole, one end of the intercommunicating pore are opened on the outer peripheral face of seal, and the direction that the other end of intercommunicating pore is opened in seal is close
Seal on the end face of chamber.The setting of interconnecting part can make the opening positioned at cylinder inner surface of opening positioned at corresponding to seal
On cylinder, thus extend the effective length of damping hole to greatest extent.
Further, the opening is extended on the outer peripheral face of cylinder barrel, the opening portion for leading to outside is formed, on opening portion
It is provided with the sealed piece for blocking opening portion.The processing being provided with beneficial to opening of opening portion, can be straight using opening portion
Connect and opening is directly opened up by the outer wall of cylinder barrel, it is necessary to which opening portion is blocked after the processing of opening is completed.The opening
Portion can also turn into the installation portion that the shut-off block of damping hole is closed in installation, can be with when needing some damping bore closure
Sealed piece is removed, shut-off block is then installed to the opening portion, completes the closure to opening, loses corresponding damping hole
Go to act on.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model.
Fig. 2 be in Fig. 1 along A-A to view.
Fig. 3 is the structural representation of another embodiment of the present utility model.
Fig. 4 is the enlarged drawing of part B in Fig. 3.
Embodiment
Refering to Fig. 1 and Fig. 2, a kind of adjustable viscous damper 100, it includes the cylinder barrel for being provided with circular seal chamber 40
41st, the piston 15 being arranged in annular seal space 40, and with piston 15 the axial movement of the interior edge cylinder barrel of annular seal space 40 guide rod
14, the piston 15 keeps in sealing contact in movement with the inner surface of the cylinder 49 of cylinder barrel 41, in the cylinder 49 of cylinder barrel 41
Six damping holes 45 are provided with, corresponding to each damping hole, connection damping hole 45 and sealing are offered on the cylinder 49 of cylinder barrel
Two openings 43 of chamber 40, each opening have the interior side opening being opened on the inner surface of cylinder.In annular seal space 40
Fill damping fluid.
First seal 32 is installed in one end of cylinder barrel, the other end is provided with second seal 33, and clamp nut 31 revolves
It is screwed on the screw thread of inner wall of cylinder, and first seal 32 is sealingly fixed to the inner chamber of cylinder barrel 41, secondary cylinder 18 uses screw thread
Inner wall of cylinder is fastened on, and second seal 33 is sealingly fixed to the inner chamber of cylinder barrel 41, first seal and second
The space of seal and cylinder barrel institute corral turns into above-mentioned annular seal space 40.Because first seal and second seal are respectively provided with necessarily
Thickness, the movement to guide rod has guide effect, thus also turns into the guide of guide rod.
One end of guide rod 14 extend into secondary cylinder after sequentially passing through clamp nut 31, first seal 32, second seal 33
In 18 secondary cylinder chamber 19, the other end of guide rod is installed with the first mounting ear 11, and first is provided with the first mounting ear 11
Mounting hole 12.For first mounting ear 11 using being threaded on guide rod 14, having been screwed on guide rod 14 prevents the first mounting ear 11
Screw thread reversion nut 13.The second mounting ear 16 is installed with one end of the remote cylinder barrel of secondary cylinder 18, in the second installation
The second mounting hole 17 is provided with ear 16.
Corresponding in two openings 43 of each damping hole 45, the interior side opening of one of opening 43 is arranged at resistance
The one end of Buddhist nun's chamber in axial direction, the interior side opening of another opening are arranged at the other end of damping cavity in axial direction；
When piston moves, all openings 43 are all held at being in connected state with annular seal space 40 and damping hole 45.
Damping hole 45 is uniformly arranged along the axially extending of cylinder barrel 41 around the axis of cylinder barrel.The both ends of damping hole point
Do not extend on two end faces of the cylinder of cylinder barrel, form the openend for leading to outside, be detachably provided with openend
Closeouts 44, the closeouts 44 in the present embodiment are outer pipe plug heads, are provided with the inwall of above-mentioned openend and outer pipe plug head
The internal thread that is meshed of external screw thread.Above-mentioned openend can be provided only on an end face of cylinder.In other embodiments
In, damping hole may be arranged as two, three, four, five or more, specifically can be according to the output of damper and other
It is required that it is configured.
Opening 43 is extended radially outwardly on the outer peripheral face of cylinder barrel 41 along annular seal space, forms the opening for leading to outside
Portion, the sealed piece 42 for blocking opening portion is provided with opening portion.Sealed piece 42 uses outer pipe plug head, correspondingly in opening
The inner surface setting in portion has adaptable internal thread.One purposes of the opening portion is that conveniently opening is opened up, and use is general
Logical drilling machine can easily complete opening up for opening, after the opening up of opening is completed, then the tapping on opening portion.
In the present embodiment, sealed piece 42 is a knockdown pieces, when needing to cut off some damping hole, it is only necessary to will
Sealed piece is replaced by longer outer pipe plug head and can block opening, so as to complete the cut-out of damping hole.When without to damping
Hole is cut off, or when being cut off using other manner to damping hole, after the opening up of opening is completed, the opening portion is just
It can be blocked using expendable mode, be blocked the opening portion for example with welding or other means.Certainly also may be used
To open up opening inside cylinder barrel, now, just without setting opening portion again.
In the present embodiment, corresponding in two openings 43 of each damping hole 45, one of them is close to first seal
32 end face towards annular seal space 40, another is close to the end face towards annular seal space 40 of second seal 33, in piston 15
The inclined plane that outer peripheral face is formed formed with anti-blocking portion, anti-blocking portion for two edges progress chamfering of the outer peripheral face to piston 15
151, the anti-blocking chamber of communication seals chamber is formed between inclined plane 151 and the inner surface of cylinder, when piston 15 is moved to annular seal space 40
One end when, at least can partly be covered towards the radially projection on the inner peripheral surface of cylinder of inclined plane 151 at the end
Opening 43 positioned at the side, the opening 43 of the side is set to ensure the damping in annular seal space 40 through anti-blocking chamber communication seals chamber 40
Liquid energy is enough entered in damping hole 45.
In other embodiments, above-mentioned anti-blocking portion can also be by the outer peripheral face radially recessed and shape in inner side of piston 15
Into.
Embodiment 2
Refering to Fig. 3 and Fig. 4, a kind of adjustable viscous damper 200, it includes the cylinder barrel for being provided with circular seal chamber 90
91st, the piston 65 being arranged in annular seal space 90, and with piston 65 the axial movement of the interior edge cylinder barrel of annular seal space 90 guide rod
64, the piston 65 keeps in sealing contact in movement with the inner surface of the cylinder 99 of cylinder barrel 91, in the cylinder 99 of cylinder barrel 91
Two damping holes 95 are provided with, corresponding to each damping hole, connection damping hole 95 and sealing are offered on the cylinder 99 of cylinder barrel
Two openings 93 of chamber 90, each opening have the interior side opening being opened on the inner surface of cylinder.In annular seal space 90
Fill damping fluid.
First seal 82 is installed in one end of cylinder barrel, the other end is provided with second seal 83, and clamp nut 81 revolves
It is screwed on the screw thread of inner wall of cylinder, and first seal 82 is sealingly fixed to the inner chamber of cylinder barrel 91, secondary cylinder 68 uses screw thread
Inner wall of cylinder is fastened on, and second seal 83 is sealingly fixed to the inner chamber of cylinder barrel 91, first seal and second
The space of seal and cylinder barrel institute corral turns into above-mentioned annular seal space 90.Because first seal and second seal are respectively provided with necessarily
Thickness, the movement to guide rod has guide effect, thus also turns into the guide of guide rod.
One end of guide rod 64 extend into secondary cylinder after sequentially passing through clamp nut 81, first seal 82, second seal 83
In 68 secondary cylinder chamber 69, the other end of guide rod is installed with the first mounting ear 61, and first is provided with the first mounting ear 61
Mounting hole 62.For first mounting ear 61 using being threaded on guide rod 64, having been screwed on guide rod 64 prevents the first mounting ear 61
Screw thread reversion nut 63.The second mounting ear 66 is installed with one end of the remote cylinder barrel of secondary cylinder 68, in the second installation
The second mounting hole 67 is provided with ear 66.
Corresponding in two openings 93 of each damping hole, the interior side opening of one of opening is arranged at damping cavity
One end in axial direction, the interior side opening of another opening are arranged at the other end of damping cavity in axial direction；In piston
When mobile, all openings 93 are all held at being in connected state with annular seal space 90 and damping hole 95.
Damping hole 95 is set along the axially extending of cylinder barrel 91 relative to the axisymmetrical of cylinder barrel.The both ends of damping hole
Extend respectively on two end faces of the cylinder of cylinder barrel, form the openend for leading to outside, be removably disposed on openend
There are a closeouts 94, the closeouts 94 in the present embodiment are outer pipe plug heads, are provided with the inwall of above-mentioned openend and outer pipe plug
The internal thread that the external screw thread of head is meshed.Above-mentioned openend can be provided only on an end face of cylinder.
Opening 93 is extended radially outwardly on the outer peripheral face of cylinder barrel 91 along annular seal space, forms the opening for leading to outside
Portion, the sealed piece 92 for blocking opening portion is provided with opening portion.Sealed piece 92 uses outer pipe plug head, correspondingly in opening
The inner surface setting in portion has adaptable internal thread.One purposes of the opening portion is that conveniently opening is opened up, and use is general
Logical drilling machine can easily complete opening up for opening, after the opening up of opening is completed, then the tapping on opening portion.
In the present embodiment, sealed piece 92 is a knockdown pieces, when needing to cut off some damping hole, it is only necessary to will
Sealed piece is replaced by longer outer pipe plug head and can block opening, so as to complete the cut-out of damping hole.When without to damping
Hole is cut off, or when being cut off using other manner to damping hole, after the opening up of opening is completed, the opening portion is just
It can be blocked using expendable mode, be blocked the opening portion for example with welding or other means.Certainly also may be used
To open up opening inside cylinder barrel, now, just without setting opening portion again.
Corresponding in two openings 93 of each damping hole 95, one of opening is at least partially disposed at the first sealing
In the drop shadow spread of part 82 radially, and first seal is closed on towards the end face of annular seal space 90；Another opening is extremely
Small part is located in the drop shadow spread of second seal 83 radially, and closes on second seal towards the end of annular seal space 90
Face.
In the present embodiment, corresponding in two openings 93 of each damping hole, one of opening is entirely located in
In the drop shadow spread of one seal 82 radially, and the edge towards annular seal space 90 of the opening and first seal court
It is concordant to the end face of annular seal space 90；Another opening is entirely located in the drop shadow spread of second seal 83 radially,
And the edge towards annular seal space 90 of the opening is concordant towards the end face of annular seal space 90 with second seal.
In first seal 82 opening 93 corresponding with institute of communication seals chamber 90 has been respectively formed on second seal 83
Interconnecting part 831.In the present embodiment, interconnecting part 831 by first seal 82 and second seal 83 outer peripheral face radially
Inner side is recessed to be formed.
In other embodiments, interconnecting part can also be to be arranged on first seal and the intercommunicating pore in second seal.
One end of intercommunicating pore wherein in first seal is arranged on the outer peripheral face of first seal, and the other end is arranged on the first sealing
Part is towards on the end face of annular seal space.One end of intercommunicating pore in second seal is arranged on the outer peripheral face of second seal, separately
One end is arranged on second seal towards on the end face of annular seal space.
It is provided with hollow pipe 96 in damping hole 95, the hollow pipe in the present embodiment is elongated tubular, on hollow pipe 96
A flowing hole 961 is provided with corresponding to each opening 93, the inner chamber 97 of the flowing hole 961 connection hollow pipe 96 and opening
93。
In other embodiments, above-mentioned hollow pipe can be replaced by elongated rod member, and make outer peripheral face and the resistance of rod member
There is gap, to ensure flowing of the damping fluid in damping hole between the inner peripheral surface in Buddhist nun hole.
In the present embodiment, there is provided two damping holes, in other embodiments, may be arranged as one, three, four
Individual, five or more damping holes.
Claims (10)
1. a kind of adjustable viscous damper, it includes the piston for being provided with the cylinder barrel of circular seal chamber, being arranged in annular seal space,
And with piston in the guide rod of the axial movement of annular seal space interior edge cylinder barrel, the piston is when mobile and in the cylinder of cylinder barrel
Surface keeps in sealing contact, it is characterised in that at least one damping hole is provided with the cylinder of cylinder barrel, corresponding to each damping
Hole, two openings of connection damping hole and annular seal space are offered on the cylinder of cylinder barrel, each opening, which has, is opened in cylinder
Interior side opening on the inner surface of body；
Corresponding in two openings of each damping hole, the interior side opening of one of opening is arranged at damping cavity vertically
The one end in direction, the interior side opening of another opening are arranged at the other end of damping cavity in axial direction；When piston moves,
All openings are all held at being in connected state with annular seal space and damping hole.
2. viscous damper according to claim 1, it is characterised in that at least two resistances are provided with the cylinder of cylinder barrel
Buddhist nun hole, at least two damping hole are evenly arranged along the axially extending of cylinder barrel, and around the axis of cylinder barrel.
3. according to the viscous damper described in any one of claim 1 or 2, it is characterised in that at least one end of the damping hole
Extend on the end face of the cylinder of cylinder barrel, form the openend for leading to outside, closeouts are detachably provided with openend.
4. viscous damper according to claim 3, it is characterised in that be actively provided with least one damping hole
Rod member, there is the gap for connecting opening between the outer peripheral face of rod member and the inner peripheral surface of damping hole.
5. viscous damper according to claim 3, it is characterised in that be provided with least one damping hole hollow
Manage, a flowing hole, the inner chamber of the flowing hole connection hollow pipe and circulation are provided with corresponding to each opening on hollow pipe
Hole.
6. viscous damper according to claim 1, it is characterised in that, should formed with anti-blocking portion on piston outer periphery face
The anti-blocking chamber of communication seals chamber, when piston is moved to the side of annular seal space, position are formed between anti-blocking portion and the inner peripheral surface of cylinder
Opening in the side can be through the anti-blocking chamber communication seals chamber.
7. viscous damper according to claim 1, it is characterised in that be separately installed with a sealing at the both ends of cylinder barrel
Part, the inner chamber between two seals of cylinder barrel forms above-mentioned annular seal space, formed with connection at least one seal
The interconnecting part of annular seal space and an opening.
8. viscous damper according to claim 7, it is characterised in that the interconnecting part is by the outer peripheral face of seal towards footpath
Formed to inner side is recessed.
9. viscous damper according to claim 7, it is characterised in that the interconnecting part is the company being arranged in seal
Through hole, one end of the intercommunicating pore are opened on the outer peripheral face of seal, and the other end of intercommunicating pore is opened in the direction of seal
On the end face of annular seal space.
10. viscous damper according to claim 1, it is characterised in that the opening extends to the outer peripheral face of cylinder barrel
On, the opening portion for leading to outside is formed, the sealed piece for blocking opening portion is provided with opening portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721062992.6U CN207176483U (en) | 2017-08-23 | 2017-08-23 | A kind of adjustable viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721062992.6U CN207176483U (en) | 2017-08-23 | 2017-08-23 | A kind of adjustable viscous damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207176483U true CN207176483U (en) | 2018-04-03 |
Family
ID=61738815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721062992.6U Active CN207176483U (en) | 2017-08-23 | 2017-08-23 | A kind of adjustable viscous damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN207176483U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883666A (en) * | 2019-01-21 | 2019-06-14 | 东南大学 | A kind of viscous damper detection displacement input modification method |
| CN111997218A (en) * | 2020-08-24 | 2020-11-27 | 南京丹枫机械科技有限公司 | Horizontal frequency modulation mass damper |
| CN114076165A (en) * | 2020-08-19 | 2022-02-22 | 蒂森克虏伯比尔斯坦有限公司 | Vibration damper and damping tube for a vibration damper |
-
2017
- 2017-08-23 CN CN201721062992.6U patent/CN207176483U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883666A (en) * | 2019-01-21 | 2019-06-14 | 东南大学 | A kind of viscous damper detection displacement input modification method |
| CN109883666B (en) * | 2019-01-21 | 2020-09-11 | 东南大学 | Correction method for displacement input signal detected by viscous damper |
| CN114076165A (en) * | 2020-08-19 | 2022-02-22 | 蒂森克虏伯比尔斯坦有限公司 | Vibration damper and damping tube for a vibration damper |
| US11828346B2 (en) | 2020-08-19 | 2023-11-28 | Thyssenkrupp Bilstein Gmbh | Vibration dampers and damper tubes for vibration dampers |
| CN111997218A (en) * | 2020-08-24 | 2020-11-27 | 南京丹枫机械科技有限公司 | Horizontal frequency modulation mass damper |
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