CN107419985A - A kind of damper with temperature-compensating - Google Patents
A kind of damper with temperature-compensating Download PDFInfo
- Publication number
- CN107419985A CN107419985A CN201710820255.6A CN201710820255A CN107419985A CN 107419985 A CN107419985 A CN 107419985A CN 201710820255 A CN201710820255 A CN 201710820255A CN 107419985 A CN107419985 A CN 107419985A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- temperature
- damper
- compensating
- piston
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
Abstract
The present invention relates to a kind of damper with temperature-compensating, including housing, rotating shaft and piston, wherein, piston is rotatably arranged in housing, while can be sheathed on rotating shaft synchronous axial system and relative rotating shaft straight skidding in rotating shaft and the gap for thick liquid flowing is provided between rotating shaft；Rotating shaft collectively forms closed cavity with housing, damping oil is filled in cavity, rotating shaft includes rotating shaft body and shaft core, and shaft core is that split is molded with rotating shaft body；Characterized in that, described piston uses the less plastics of thermal coefficient of expansion, and shaft core is using the larger plastics of thermal coefficient of expansion.After such scheme, the present invention can reduce variation of ambient temperature to greatest extent to adverse effect caused by the rotary speed of damper.
Description
Technical field
The present invention relates to bathroom field, more particularly to a kind of damper with temperature-compensating.
Background technology
Existing damper structure, when intracavitary oil temperature increases because of environment temperature, or because long-time loaded work piece
And cause temperature to increase, all the viscosity for causing damping oil is reduced, when having served as the size constancy of oil-gap, with being damped under even load
Rotary speed will increase.Here it is when front damper generally existing, damper varies with temperature and caused performance is unstable
It is fixed -- the rotating shaft fluctuation of speed.
Therefore, it is further improved.
The content of the invention
It is an object of the invention to provide a kind of damper with temperature-compensating, can reduce environment temperature change to greatest extent
Change to adverse effect caused by the rotary speed of damper.
To achieve these goals, technical scheme is as follows：
A kind of damper with temperature-compensating, including housing, rotating shaft and piston, wherein, piston is rotatably arranged in housing, together
When can be sheathed in rotating shaft and be provided between rotating shaft with rotating shaft synchronous axial system and relative rotating shaft straight skidding and supply thick liquid
The gap of flowing；Rotating shaft collectively forms closed cavity with housing, fills damping oil in cavity, rotating shaft includes rotating shaft body and axle
Core, and shaft core is molded with rotating shaft body for split；Piston uses the less plastics of thermal coefficient of expansion, and shaft core uses thermal expansion system
The larger plastics of number.
Preferably, described shaft core material can use TPV, or being added in shaft core material can cause thermal coefficient of expansion to increase
Big additive, at the same time, piston can use metal material or PA66 to add glass fibre.
Using said structure, when a temperature increases, the increased amount of shaft core size is more than the increased amount of piston hole, so that
The oil-gap of crossing of shaft core and piston space diminishes.Cross oil-gap to diminish, the pipe of fluid line can be caused to hinder increase, so as to reduce rotating shaft
Rotating speed.Cross oil-gap diminish caused by pipe resistive greatly can effective compensation and payment because damping oil viscosity declines and caused by it is bad
Influence.It is derived from more smoothly damping rotating speed-temperature curve.
Brief description of the drawings
Fig. 1 is the integrally-built longitudinal profile diagram of the present invention.
Fig. 2 is working condition longitudinal profile diagram of the present invention at a temperature of T1.
Fig. 3 is working condition longitudinal profile diagram of the present invention at a temperature of T2.
Fig. 4 is the enlarged drawing of Fig. 3 horizontal section diagram.
Fig. 5 A are damping oil viscosity-intracavitary damping oil temperature profile before temperature-compensating.
Fig. 5 B are damping lumen resistance-intracavitary damping oil temperature profile before temperature-compensating.
Fig. 5 C are before temperature-compensating and damping rotating speed-intracavitary damping oil temperature profile.
Fig. 6 A are damping oil viscosity-intracavitary damping oil temperature profile after temperature-compensating.
Fig. 6 B are damping lumen resistance-intracavitary damping oil temperature profile after temperature-compensating.
Fig. 6 C are damping rotating speed-intracavitary damping oil temperature profile after temperature-compensating.
Embodiment
Below with reference to accompanying drawing, technical scheme and beneficial effect are described in detail.
As shown in figure 1, a kind of damper with temperature-compensating, including housing 1, rotating shaft 2 and piston 3.
Wherein, piston 3 is provided with external screw thread, and the inwall of housing 1 is at least partly provided with internal thread, and piston 3 is located in housing 1 simultaneously
With the threaded engagement of housing 1.Rotating shaft 2 collectively forms closed cavity with housing 1, and damping oil is filled in cavity.Rotating shaft 2 includes rotating shaft
Body 21 and shaft core 22, and shaft core 22 is molded with rotating shaft body 21 for split.The axially arranged of shaft core 22 has gradual change type to cross oil groove
221.The gradual change type crosses the flowing velocity that oil groove 221 is used for controlling damping oil in cavity.
Piston 3 uses the less plastics of thermal coefficient of expansion, and shaft core 22 is using the larger plastics of thermal coefficient of expansion.Specifically
Ground, the material of shaft core 22 can use TPV, or the additive that thermal coefficient of expansion can be caused to increase is added in the material of shaft core 22, and
At the same time, piston 3 can use metal material or PA66 to add glass fibre.
The operation principle of above-mentioned construction is as follows：
As shown in Figures 2 to 4, wherein, Fig. 2 show working condition longitudinal profile diagram of the above-mentioned construction at a temperature of T1, Fig. 3
The working condition longitudinal profile diagram for being above-mentioned construction at a temperature of T2, and T2>T1.When a temperature increases, the size of shaft core 22 increases
The amount added is more than the increased amount of the axis hole of piston 3, so that the oil-gap of crossing between shaft core 22 and piston 3 diminishes.Cross oil-gap change
It is small, the pipe of fluid line can be caused to hinder increase, so as to reduce the rotating speed of rotating shaft 2.So, the harmful effect quilt that oil viscosity declines is damped
Cross oil-gap diminish caused by pipe resistive counteracted to compensation greatly.As shown in Fig. 5 A, Fig. 5 B and Fig. 5 C, when no temperature-compensating
When, temperature rise, the viscosity of damping oil declines, the increase of rotating shaft rotating speed；As shown in Fig. 6 A, Fig. 6 B and Fig. 6 C, when there is temperature-compensating
When, temperature rise, the viscosity of damping oil declines, and crosses oil-gap and diminishes（Axle diameter becomes big）, rotating shaft rotating speed is constant or a small amount of
Increase, compared with before temperature-compensating, more stable damping rotating speed-temperature curve can be obtained.
The technological thought of above example only to illustrate the invention, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any improvement done on the basis of technical scheme and equivalent substitution, this hair is each fallen within
Within bright protection domain.
Claims (5)
1. a kind of damper with temperature-compensating, including housing, rotating shaft and piston, wherein, piston is rotatably arranged in housing,
It can be sheathed in rotating shaft and be provided between rotating shaft with rotating shaft synchronous axial system and relative rotating shaft straight skidding simultaneously and supply viscous fluid
The gap of body flowing；Rotating shaft and housing collectively form closed cavity, filling damping oil in cavity, rotating shaft include rotating shaft body and
Shaft core, and shaft core is molded with rotating shaft body for split；Characterized in that, described piston uses the less modeling of thermal coefficient of expansion
Material, and shaft core is using the larger plastics of thermal coefficient of expansion.
2. a kind of damper with temperature-compensating as claimed in claim 1, it is characterised in that described shaft core material uses
TPV。
3. a kind of damper with temperature-compensating as claimed in claim 1, it is characterised in that added in described shaft core material
The additive that thermal coefficient of expansion can be caused to increase.
4. a kind of damper with temperature-compensating as claimed in claim 2 or claim 3, it is characterised in that described piston material is adopted
With PA66 plus glass fibre.
5. a kind of damper with temperature-compensating as claimed in claim 2 or claim 3, it is characterised in that described piston is using gold
Belong to material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820255.6A CN107419985A (en) | 2017-09-13 | 2017-09-13 | A kind of damper with temperature-compensating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820255.6A CN107419985A (en) | 2017-09-13 | 2017-09-13 | A kind of damper with temperature-compensating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107419985A true CN107419985A (en) | 2017-12-01 |
Family
ID=60433203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710820255.6A Pending CN107419985A (en) | 2017-09-13 | 2017-09-13 | A kind of damper with temperature-compensating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107419985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057598A (en) * | 2018-09-28 | 2018-12-21 | 上海东铁五金有限公司 | A kind of axle center and the hydraulic floor spring using it |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255396A (en) * | 1991-07-26 | 1993-10-26 | Matsushita Electric Industrial Co., Ltd. | Sanitary cleaning device including a rotation deceleration device |
| GB201308054D0 (en) * | 2013-05-03 | 2013-06-12 | Lama D D Dekani | Improvements in damper assemblies |
| CN105041092A (en) * | 2015-08-25 | 2015-11-11 | 厦门德浦精密科技有限公司 | Plunger type damper and rotating shaft thereof |
| CN207260824U (en) * | 2017-09-13 | 2018-04-20 | 厦门德浦精密科技有限公司 | A kind of damper with temperature-compensating |
-
2017
- 2017-09-13 CN CN201710820255.6A patent/CN107419985A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255396A (en) * | 1991-07-26 | 1993-10-26 | Matsushita Electric Industrial Co., Ltd. | Sanitary cleaning device including a rotation deceleration device |
| GB201308054D0 (en) * | 2013-05-03 | 2013-06-12 | Lama D D Dekani | Improvements in damper assemblies |
| CN105308251A (en) * | 2013-05-03 | 2016-02-03 | 拉玛德卡尼股份公司 | Improvements in damper assemblies |
| CN105041092A (en) * | 2015-08-25 | 2015-11-11 | 厦门德浦精密科技有限公司 | Plunger type damper and rotating shaft thereof |
| CN207260824U (en) * | 2017-09-13 | 2018-04-20 | 厦门德浦精密科技有限公司 | A kind of damper with temperature-compensating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057598A (en) * | 2018-09-28 | 2018-12-21 | 上海东铁五金有限公司 | A kind of axle center and the hydraulic floor spring using it |
| CN109057598B (en) * | 2018-09-28 | 2024-02-02 | 上海东铁五金有限公司 | Axle center and hydraulic floor spring applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |