CN105840713A - Damper with viscous-friction combined action - Google Patents
Damper with viscous-friction combined action Download PDFInfo
- Publication number
- CN105840713A CN105840713A CN201610335984.8A CN201610335984A CN105840713A CN 105840713 A CN105840713 A CN 105840713A CN 201610335984 A CN201610335984 A CN 201610335984A CN 105840713 A CN105840713 A CN 105840713A
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- China
- Prior art keywords
- cylinder
- piston rod
- viscous
- friction
- cylinder cap
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/3257—Constructional features of cylinders in twin-tube type devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention provides a damper with a viscous-friction combined action. The damper with the viscous-friction combined action is used for solving the problem that the service life of an existing damper is shortened due to friction. The damper with the viscous-friction combined action comprises a left pull lug, a cylinder body, a piston rod, a cylinder cover I, an outer sliding body, friction plates, pressurized pistons, a cylinder cover II and a right pull lug, wherein the left pull lug is arranged at one end of the cylinder body; the cylinder cover I and the cylinder cover II are arranged inside the cylinder body and at one end of the cylinder body; the piston rod is arranged in an oil chamber; the two ends of the piston rod are matched with middle through holes of the cylinder cover I and the cylinder cover Il; one end of the piston rod is connected to the right pull lug; four through holes are formed in the outer wall of the cylinder body; the pressurized pistons are arranged in the through holes; the four friction plates are arranged on the outer wall of the cylinder body; the outer sliding body is arranged outside the cylinder body in a sleeved manner; and one end of the outer sliding body is connected to the right pull lug. The damper with the viscous-friction combined action has the beneficial effects that the damping force is composed of viscous damping force and frictional damping force; when a vibration source does not vibrate, pressure does not exist between the friction plates and the outer sliding body; and the friction damper is long in service life and good in damping effect.
Description
Technical field
The present invention relates to damper technique field, the antivibrator of a kind of viscous-friction compound action.
Background technology
Vibration is widely present in multiple field.Such as, in field of machining, owing to vibration makes the element precision processed reduce；At building field, owing to natural disaster can make building be destroyed；Vibration also can bring noise, and healthy to people brings harm etc..Vibration has become as the key factor restricting the development of multiple fields, but, a lot of in the case of oscillation phenomenon be again inevitable.Therefore, rational control structure is taked to reduce vibration most important.
Existing frcition damper operation principle is mainly: frictionally producing friction between body and cylinder body and preferably reach the effect of vibration damping, existing frcition damper is to add pretightning force between cylinder body and friction piece to produce the effect of friction damping force mostly.Therefore, the existence of friction will make friction piece quickly heavy wear, and then the life-span is reduced, and the damping of antivibrator is decreased obviously, so that cost improves.
Summary of the invention
It is an object of the invention to provide a kind of viscous-frcition damper, for solving the problem that existing antivibrator causes service life reduction because of friction.
nullThe present invention solves its technical problem and is adopted the technical scheme that: a kind of viscous-frcition damper，It is characterized in that，It includes Zola's ear、Cylinder body、Piston rod、Cylinder cap I、Outer gliding mass、Friction plate、Charged piston、Ear is drawn on cylinder cap II and the right side，Described cylinder body is hollow structure，It is provided with Zola's ear in described cylinder body one end，Described cylinder interior and one end are provided with cylinder cap I and cylinder cap II，Described cylinder cap I、Cylinder cap II is the middle cylindrical shape having through hole，Described piston rod be two ends be the rod shaped structure in the middle of elongate rod for piston-like，Described cylinder cap I、Cylinder cap II、Piston rod forms oil closed cavity with inner core，Piston rod it is provided with in oil pocket，Piston rod two ends and cylinder cap I、Cylinder cap II intermediate throughholes matches，Piston rod one end draws ear to be connected with the right side，Four through holes are had at described outer wall of cylinder block，It is provided with charged piston in described through hole，It is provided with four friction plates at described outer wall of cylinder block，Friction plate inwall contacts with charged piston，Friction plate outer wall and outer gliding mass contact internal walls，Described outer gliding mass is hollow cylinder shape，It is enclosed within outside cylinder body，One end draws ear to be connected with the right side.
Further, described friction plate is semi-circular shape.
Further, damping hole is had on piston in the middle part of described piston rod.
Further, described piston rod draws ear for threadeding with the right side.
The invention has the beneficial effects as follows: the antivibrator of a kind of viscous-friction compound action that the present invention provides, its damping force is made up of viscous damping force and friction damping force two parts, when focus does not shakes, pressure is not had between friction plate and outer gliding mass, so can extend the service life of friction plate, reduce use cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is cylinder body profile；
Fig. 3 is cylinder body schematic three dimensional views；
Fig. 4 is piston rod schematic diagram；
Fig. 5 is friction plate schematic three dimensional views；
Fig. 6 is cylinder cap profile；
Fig. 7 is cylinder cap schematic three dimensional views.
In figure: 1 Zola's ear, 2 cylinder bodies, 3 piston rods, 4 cylinder caps I, 5 outer gliding masses, 6 friction plates, 7 charged pistons, 8 cylinder caps II, 9 right sides draw ear, 21 through holes, and 31, damping hole.
Detailed description of the invention
Describe the present invention below in conjunction with the accompanying drawings.
As shown in Figures 1 to 7, the present invention includes that ear is drawn on 1 Zola's ear, 2 cylinder bodies, 3 piston rods, the 4 outer gliding masses of cylinder cap I, 5,6 friction plates, 7 charged pistons, 8 cylinder caps II and 9 right sides.
nullAs shown in Figure 1，Cylinder body 2 is cylinder-like structure and horizontal positioned，Cylinder body left end is connected with Zola's ear by screw thread，Cylinder cap I 4 is by being threadably mounted in the middle part of cylinder body 2，Cylinder cap II 8 is by being threadably mounted at cylinder body 2 right-hand member，Cylinder cap I 4、Through hole is had in the middle of cylinder cap II 8，The elongate rod at piston rod 3 two ends is inserted respectively into cylinder cap I 4、In through hole in the middle of cylinder cap II 8，Piston and cylinder body 2 contact internal walls in the middle part of piston rod 3，Cylinder body 2、Cylinder cap I 4、Cylinder cap II 8 and piston rod 3 constitute airtight oil pocket，As shown in Figure 4，Two damping holes 31 are had on piston in the middle part of piston rod 3，The effect of damping hole is to allow fluid produce damping force by damping hole when piston rod moves，As shown in Figure 2，Four through holes 21 are had on cylinder body 2 sidewall，Four through holes 21 are provided with four charged pistons 7，The cylinder body 2 outer wall position corresponding with through hole 21 is provided with four friction plates 6，Friction plate 6 inwall contacts with charged piston 7，Outer wall contacts with outer gliding mass 5 inwall，It is outside that outer gliding mass 5 is enclosed within cylinder body 2，The open at one end other end draws ear 9 to be connected by screw thread with the right side，The right side draws ear 9 inside to have screwed hole，It is connected with piston rod one end.
nullDuring installation，Zola's ear 1 is connected with ground，The right side draws ear 9 to be connected with focus，During work，Ear 9 is drawn on the right side、Outer gliding mass 5 and piston rod 3 vibrate together with focus，In the middle part of piston rod 3, piston moves left and right in oil pocket，Owing to the effect of damping hole 31 can produce viscous damping force when fluid passes through，Reach the purpose of damping，Simultaneously，When piston rod 3 is moved to the left，The oil pressure of oil pocket left-half can raise，Oil liquid pressure is delivered on friction plate 6 by charged piston 7，Thus between friction plate 6 and outer gliding mass 5, produce extrusion friction，Thus reach the purpose of damping，When piston rod 3 moves right，The oil pressure of oil pocket right half part can raise，Oil liquid pressure is delivered on friction plate 6 by charged piston 7，Thus between friction plate 6 and outer gliding mass 5, produce extrusion friction，Thus reach the purpose of damping，So this viscous-frcition damper is achieved that the purpose that damping force is made up of viscous damping force and friction damping force two parts，Also achieve when focus does not shakes simultaneously，Pressure is not had between friction plate and outer gliding mass，Extend the service life of friction plate，Reduce the purpose of use cost.
Claims (4)
1. viscous-frcition damper, it is characterized in that, it includes Zola's ear, cylinder body, piston rod, cylinder cap I, outer gliding mass, friction plate, charged piston, ear is drawn on cylinder cap II and the right side, described cylinder body is hollow structure, described cylinder body one end is provided with Zola's ear, it is provided with cylinder cap I and cylinder cap II in described cylinder interior and one end, described cylinder cap I, cylinder cap II is the middle cylindrical shape having through hole, described piston rod be two ends be the rod shaped structure in the middle of elongate rod for piston-like, described cylinder cap I, cylinder cap II, piston rod forms oil closed cavity with inner core, piston rod it is provided with in oil pocket, piston rod two ends and cylinder cap I, cylinder cap II intermediate throughholes matches, piston rod one end draws ear to be connected with the right side, four through holes are had at described outer wall of cylinder block
, in described through hole, it is provided with charged piston, is provided with four friction plates at described outer wall of cylinder block, friction plate inwall contacts with charged piston, friction plate outer wall and outer sliding sleeve contact internal walls, and described outer sliding sleeve is hollow cylinder shape, being enclosed within outside cylinder body, one end draws ear to be connected with the right side.
A kind of viscous-frcition damper the most according to claim 1, is characterized in that, described friction plate is semi-circular shape.
A kind of viscous-frcition damper the most according to claim 1, has damping hole on piston in the middle part of described piston rod.
A kind of viscous-frcition damper the most according to claim 1, described piston rod draws ear for threadeding with the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335984.8A CN105840713A (en) | 2016-05-20 | 2016-05-20 | Damper with viscous-friction combined action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335984.8A CN105840713A (en) | 2016-05-20 | 2016-05-20 | Damper with viscous-friction combined action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840713A true CN105840713A (en) | 2016-08-10 |
Family
ID=56592927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610335984.8A Pending CN105840713A (en) | 2016-05-20 | 2016-05-20 | Damper with viscous-friction combined action |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840713A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757808A (en) * | 2018-08-08 | 2018-11-06 | 华侨大学 | Become friction viscous fluid and mixes damper |
| CN109340297A (en) * | 2018-11-09 | 2019-02-15 | 宁波大学 | A kind of viscous damper |
| CN113431413A (en) * | 2021-07-12 | 2021-09-24 | 武汉理工大学 | Viscous damper based on piezoelectric variable friction |
| CN115163716A (en) * | 2022-07-08 | 2022-10-11 | 广州大学 | Viscous damper with variable friction damping |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057637A (en) * | 2006-08-30 | 2008-03-13 | Showa Corp | Hydraulic shock absorber |
| CN101315113A (en) * | 2008-07-22 | 2008-12-03 | 上海材料研究所 | Viscous damping device with radial position limiter |
| CN201202089Y (en) * | 2008-05-28 | 2009-03-04 | 中交公路规划设计院有限公司 | Position limiter for liquid viscous damper for bridge |
| US20110101585A1 (en) * | 2009-10-30 | 2011-05-05 | Hitachi Automotive Systems, Ltd. | Shock absorber |
| CN105570371A (en) * | 2016-02-26 | 2016-05-11 | 吉林大学 | Liquid pressure-regulated and velocity-dependent dry friction shock absorber |
| CN205669554U (en) * | 2016-05-20 | 2016-11-02 | 济南大学 | A kind of damper of viscous friction compound action |
-
2016
- 2016-05-20 CN CN201610335984.8A patent/CN105840713A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057637A (en) * | 2006-08-30 | 2008-03-13 | Showa Corp | Hydraulic shock absorber |
| CN201202089Y (en) * | 2008-05-28 | 2009-03-04 | 中交公路规划设计院有限公司 | Position limiter for liquid viscous damper for bridge |
| CN101315113A (en) * | 2008-07-22 | 2008-12-03 | 上海材料研究所 | Viscous damping device with radial position limiter |
| US20110101585A1 (en) * | 2009-10-30 | 2011-05-05 | Hitachi Automotive Systems, Ltd. | Shock absorber |
| CN105570371A (en) * | 2016-02-26 | 2016-05-11 | 吉林大学 | Liquid pressure-regulated and velocity-dependent dry friction shock absorber |
| CN205669554U (en) * | 2016-05-20 | 2016-11-02 | 济南大学 | A kind of damper of viscous friction compound action |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757808A (en) * | 2018-08-08 | 2018-11-06 | 华侨大学 | Become friction viscous fluid and mixes damper |
| CN108757808B (en) * | 2018-08-08 | 2023-12-29 | 华侨大学 | Variable friction viscous fluid mixing damper |
| CN109340297A (en) * | 2018-11-09 | 2019-02-15 | 宁波大学 | A kind of viscous damper |
| CN113431413A (en) * | 2021-07-12 | 2021-09-24 | 武汉理工大学 | Viscous damper based on piezoelectric variable friction |
| CN115163716A (en) * | 2022-07-08 | 2022-10-11 | 广州大学 | Viscous damper with variable friction damping |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |
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| WD01 | Invention patent application deemed withdrawn after publication |