CN201818696U - Single piston rod viscous damper capable of setting initial stiffness - Google Patents
Single piston rod viscous damper capable of setting initial stiffness Download PDFInfo
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- CN201818696U CN201818696U CN201020584783XU CN201020584783U CN201818696U CN 201818696 U CN201818696 U CN 201818696U CN 201020584783X U CN201020584783X U CN 201020584783XU CN 201020584783 U CN201020584783 U CN 201020584783U CN 201818696 U CN201818696 U CN 201818696U
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- damper
- way valve
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Abstract
The utility model relates to a vibration-proof building element, in particular to a single piston rod viscous damper capable of setting the initial stiffness. The inside of the piston (14) of the damper is provided with a left-to-right unidirectional channel and a right-to-left unidirectional channel. The utility model is characterized in that the cylinder body of the damper is composed of an inner cylinder barrel (1) and an outer cylinder barrel (2) sleeved outside the inner cylinder barrel (1); a left end cap (3) and a right end cap (4) are separately embedded on both ends of the outer cylinder barrel (2) to ensure that a gap between the inner cylinder barrel (1) and the outer cylinder barrel (2) forms a compensation cylinder (6); and the inside of the left end cap (3) is provided with a compensation check valve (7), and the inside of the right end cap (4) is provided with another compensation check valve (7). By adopting the viscous damper of the utility model, the vacuum or to-the-end phenomenon in the working cylinder during the moving process of the piston can be eliminated.
Description
Technical field
The utility model relates to the structural element of a kind of vibration proof or vibrations, is specifically related to use the movement-damper of liquid as resisting medium, particularly has the viscous damper of the single-piston rod of throughflow cylinder one end.
Background technique
Viscous damper is equivalent to the piston cylinder that working medium is an emplastic with regard to structure, be widely used in fields such as machinery, building.The control mechanism of viscous damper is that the portion of energy of utilizing working medium will be by the structure transmission in compressive strain or swiftly flowing process to come is converted into thermal dissipation and falls, reach alleviate outer impact of carrying, reduce structural vibration, the purpose of protection structural safety.
The patent No. is that 02260101.5 utility model patent has disclosed a kind of " viscous damper ", it be the double piston-rod that constitutes by cylinder body, piston, piston rod and cylinder cap etc. the piston cylinder of stroke, wherein, be filled with the viscous damping material in the described cylinder body; Be provided with a damping gap between described piston and the cylinder body, when the external force that is produced by vibration on acting on piston rod promotes the piston move left and right, described damping material high speed flow overdamping gap just will vibrate the mechanical energy that is produced and change thermal dissipation into, thereby realize the purpose of vibration damping.But there is the little shortcoming of initial stiffness in the viscous damper of this patent scheme, and when the load of external world's input was static load, this damper can not provide damping and power consumption, and rigidity can not be provided.
The patent No. is that 200620152156.1 utility model patent discloses a kind of " pressure limit valve hydraulic damper ", this damper is a single-piston rod viscous damper, the piston of this damper is provided with two damping through holes that are communicated with the clutch release slave cylinder of the piston left and right sides, be provided with the pressure-limit valve (i.e. " pressure limit valve " described in this patent document) that resisting medium can be flowed to piston right side clutch release slave cylinder by piston left side clutch release slave cylinder in one of them damping through hole, be provided with the pressure-limit valve that resisting medium can be flowed to piston left side clutch release slave cylinder by piston right side clutch release slave cylinder in another damping through hole.The damper of above-mentioned patent scheme during less than the pressure-limit valve limit value, can provide bigger initial stiffness in external force; During greater than the pressure-limit valve limit value, piston moves in external force, and resisting medium is by flowing through in the described damping through hole and consuming energy.But this damper is the single-piston rod damper, and in the course of the work, the volume of clutch release slave cylinder reduces along with putting in and extracting out of piston rod and increases, cause occurring " vacuum " or " dieback " phenomenon in the clutch release slave cylinder, even can't proper functioning.
Summary of the invention
In view of the deficiencies in the prior art, technical problem to be solved in the utility model provides a kind of single-piston rod viscous damper of eliminating " vacuum " or " dieback " phenomenon that piston occurs in the clutch release slave cylinder in the process that moves.
The technological scheme that the utility model addresses the above problem is as follows:
A kind of single-piston rod viscous damper of setting initial stiffness, be provided with two damping through holes that are communicated with piston both sides clutch release slave cylinder in the piston body of this damper, be provided with the damping one-way valve in each damp channel, form one from left to right with a half-duplex channel from right to left, it is characterized in that, the cylinder body of described damper is made of the inner cylinder tube outer cylinder outer with being set in inner cylinder tube, left end cap and right end cap are embedded the two at outer cylinder respectively, make the gap between inner cylinder tube and the outer cylinder form a compensating cylinder; Be provided with a compensation one-way valve in the described left end lid, form the left half-duplex channel that compensating cylinder internal viscosity medium can flow in clutch release slave cylinder; Be provided with another compensation one-way valve in the described right-hand member lid, form the right half-duplex channel that a clutch release slave cylinder internal viscosity medium can flow in compensating cylinder; The back pressure of described damping one-way valve is greater than the back pressure of described compensation one-way valve.
The setting of the initial stiffness of damper described in the utility model, can realize that these all are that the technician accomplishes than being easier to by the elasticity coefficient of selecting elastic element in the described damping one-way valve or the initial stiffness of adjusting elastic element in the described damping one-way valve.
Damper described in the utility model, wherein, described outside piston face is provided with 2～3 piston rings, to improve sealing effect.The quantity of described piston ring is decided by the width of piston, and the thick person of piston establishes 3, and is thin then establish 2.
Damper described in the utility model, owing to be respectively equipped with an one-way valve in its left end cap and the right-hand member lid, form the right half-duplex channel that left half-duplex channel that a compensating cylinder internal viscosity medium can flow and clutch release slave cylinder internal viscosity medium can flow in compensating cylinder in clutch release slave cylinder, therefore when piston rod puts in clutch release slave cylinder, the smaller volume of clutch release slave cylinder forces the viscous medium to flow to compensating cylinder by right half-duplex channel by clutch release slave cylinder; When piston rod is extracted clutch release slave cylinder out, it is big that the volume of clutch release slave cylinder becomes, force the viscous medium to flow to clutch release slave cylinder by compensating cylinder by left half-duplex channel, thereby realized effective compensation that the clutch release slave cylinder volume is changed, eliminated the phenomenon that occurs " vacuum " or " dieback " in the process that piston moves in the clutch release slave cylinder.
Description of drawings
Fig. 1～Fig. 6 is the structural representation of a specific embodiment of damper described in the utility model, wherein, Fig. 1 is a plan view, Fig. 2 is the A-A sectional view of Fig. 1, Fig. 3 is the structure enlarged view of the local I of Fig. 1, Fig. 4 is the structure enlarged view of the local II of Fig. 1, and Fig. 5 is the structure enlarged view of the local III of Fig. 1, and Fig. 6 is the structure enlarged view of the local IV of Fig. 1.
Fig. 7 is the structural representation of a kind of specific embodiments of damping one-way valve described in the utility model.
Embodiment
Referring to Fig. 1～6, in this enforcement, the cylinder body of damper is by inner cylinder tube 1 and be set in this inner cylinder tube 1 outer outer cylinder 2 and constitute, and two of outer cylinder 2 is embedded a left cylinder cap 3 and a right cylinder cap 4 respectively, make to form clutch release slave cylinder 5 in the inner cylinder tube 1, form compensating cylinder 6 between inner cylinder tube 1 and the outer cylinder 2; Piston rod 13 passes right end cap 4 through the clutch release slave cylinder 5 on piston 14 right sides, is provided with seal ring 18 between piston rod 14 and the right end cap 4; The periphery of piston 14 is provided with two piston rings 17, utilizes the elasticity of piston ring 17 to improve sealing effect.
Referring to Fig. 1, Fig. 2, Fig. 5 and Fig. 6, be provided with two damping through holes 15 that are communicated with piston 14 both sides clutch release slave cylinders 5 in piston 14 bodies, be provided with steel ball 12 and pressure spring 11 in one of them damping through hole 15 from left to right successively, constitute a damping one-way valve 16, and form half-duplex channel (see figure 5) from left to right; Be provided with successively from left to right and steel ball 12 in the another one damping through hole 15, constitute another damping one-way valve 16, and form half-duplex channel (see figure 6) from right to left.Referring to Fig. 5 and Fig. 6, select the elastic element of the pressure spring 11 of different elasticity coefficient as damping one-way valve 16, can change piston 14 and begin to move needed external force, and then design default initial stiffness damper.
Referring to Fig. 3 and Fig. 4, be provided with a compensation one-way valve 7 in left end cap 3 bodies, form the left half-duplex channel 9 that a compensating cylinder 6 internal viscosity media 8 can flow in clutch release slave cylinder 5; Be provided with another compensation one-way valve 7 in described right end cap 4 bodies, form the right half-duplex channel 10 that a clutch release slave cylinder 5 internal viscosity media 8 can flow in compensating cylinder 6.One from clutch release slave cylinder 5 in the above-mentioned left half-duplex channel 9 inwardly is provided with pressure spring 11 and steel ball 12 successively, forms described compensation one-way valve 7, increases because of shifting out of piston rod 13 makes the volume of clutch release slave cylinder 5 with compensation; One from clutch release slave cylinder 5 in the described right half-duplex channel 10 inwardly is provided with steel ball 12 and pressure spring 11 successively, forms described another compensation one-way valve 7, reduces because of entering of piston rod 13 makes the volume of clutch release slave cylinder 5 with compensation.
For the ease of setting the initial stiffness of damper, damping one-way valve described in the utility model can adopt structure shown in Figure 7.As shown in Figure 7, damping one-way valve 16 is made of plug screw 19, steel ball 12 and the pressure spring 11 that the end face from piston 14 is located in the damping through hole 15 successively, and the center of wherein said plug screw 19 is provided with inner hexagonal hole.The effect of described inner hexagonal hole has two, and the first is convenient to turn the rigidity that plug screw 19 is adjusted pressure springs 11, and it two is mobile passages that provide for viscous medium 8.
In order to guarantee reliablely and stablely working of damper described in the utility model, when the described compensation one-way valve 7 of assembling, add certain pressure in advance should for spring 11 wherein, make the back pressure of its back pressure that produces, open prior to compensation one-way valve 7 to guarantee damping one-way valve 16 greater than described damping one-way valve 16.
Claims (3)
1. the single-piston rod viscous damper that can set initial stiffness, be provided with two damping through holes (15) that are communicated with piston (14) both sides clutch release slave cylinders (5) in the piston of this damper (14) body, be provided with damping one-way valve (16) in each damping through hole (15), form one from left to right with a half-duplex channel from right to left, it is characterized in that, the cylinder body of described damper is by inner cylinder tube (1) and be set in outer outer cylinder (2) formation of inner cylinder tube (1), left end cap (3) and right end cap (4) are set in two of outer cylinder (2) respectively, make the gap between inner cylinder tube (1) and the outer cylinder (2) form a compensating cylinder (6); Be provided with a compensation one-way valve (7) in described left end cap (3) body, form the left half-duplex channel (9) that compensating cylinder (6) internal viscosity medium (8) can flow in clutch release slave cylinder (5); Be provided with another compensation one-way valve (7) in described right end cap (4) body, form the right half-duplex channel (10) that a clutch release slave cylinder (5) internal viscosity medium can flow in compensating cylinder (6); The back pressure of described damping one-way valve (16) is greater than the back pressure of described compensation one-way valve (7).
2. a kind of single-piston rod viscous damper of setting initial stiffness according to claim 1, it is characterized in that, described damping one-way valve (16) is made of plug screw (19), steel ball (12) and the pressure spring (11) that the end face from piston (14) is located in the damping through hole (15) successively, and the center of wherein said plug screw (19) is provided with inner hexagonal hole.
3. a kind of single-piston rod viscous damper of setting initial stiffness according to claim 1 and 2 is characterized in that described piston (14) periphery is provided with 2～3 piston rings (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020584783XU CN201818696U (en) | 2010-10-28 | 2010-10-28 | Single piston rod viscous damper capable of setting initial stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020584783XU CN201818696U (en) | 2010-10-28 | 2010-10-28 | Single piston rod viscous damper capable of setting initial stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818696U true CN201818696U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020584783XU Expired - Lifetime CN201818696U (en) | 2010-10-28 | 2010-10-28 | Single piston rod viscous damper capable of setting initial stiffness |
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| CN (1) | CN201818696U (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619294A (en) * | 2012-04-13 | 2012-08-01 | 成都市新筑路桥机械股份有限公司 | Damping coefficient automatically-adjusted damper |
| CN103062273A (en) * | 2013-01-21 | 2013-04-24 | 陕西理工学院 | Damping-adjustable elastic clay buffer for vehicle |
| CN103075457A (en) * | 2012-10-23 | 2013-05-01 | 镇江铁科橡塑制品有限公司 | Leak-proof hydraulic auxiliary shock absorber |
| CN103867626A (en) * | 2014-04-09 | 2014-06-18 | 苏州市相城区明达复合材料厂 | Efficient rubber cushion |
| CN104595408A (en) * | 2015-01-30 | 2015-05-06 | 柳州市同进汽车零部件制造有限公司 | Shock absorption device of automobile |
| CN105351274A (en) * | 2015-12-14 | 2016-02-24 | 陈鸽 | Energy consumer and mechanical switch |
| CN106321559A (en) * | 2016-10-20 | 2017-01-11 | 太原重型机械集团工程技术研发有限公司 | Modular hydraulic equipment and protecting device thereof |
| CN106438819A (en) * | 2016-11-29 | 2017-02-22 | 中国直升机设计研究所 | Pressure damper piston with dual-redundancy and dual-opening function |
| CN106762944A (en) * | 2016-12-28 | 2017-05-31 | 哈尔滨通用液压机械制造有限公司 | A kind of damping oil cylinder |
| CN107152486A (en) * | 2016-03-03 | 2017-09-12 | 株洲时代新材料科技股份有限公司 | A kind of viscous damper with hydraulic pressure fuse function |
| CN107191530A (en) * | 2017-05-26 | 2017-09-22 | 中国民航大学 | A kind of twin coil piston magneto-rheological liquid shimmy-damper |
| CN107255134A (en) * | 2017-08-16 | 2017-10-17 | 中车青岛四方车辆研究所有限公司 | Viscoelastic medium buffer |
| CN108458032A (en) * | 2018-03-29 | 2018-08-28 | 青岛理工大学 | Built-in enhanced variable damping viscous damping devices |
| CN108860036A (en) * | 2018-07-26 | 2018-11-23 | 重庆交通职业学院 | A kind of automobile buffer beam adjustable damping formula hydraulic energy absorption mechanism |
| CN109114154A (en) * | 2018-09-28 | 2019-01-01 | 常州大学 | A kind of metallic combination formula vibration isolator of rigidity independently of damping |
| CN109236932A (en) * | 2018-09-28 | 2019-01-18 | 常州大学 | A kind of symmetrical damper of fluid excitation solid granulates movement |
| CN109322959A (en) * | 2018-11-12 | 2019-02-12 | 袁晓斌 | A kind of damper |
| CN110295557A (en) * | 2019-07-15 | 2019-10-01 | 中南大学 | A kind of avoiding collision that adaptive deformation that resisting uneven impact force resets |
| CN112963486A (en) * | 2021-03-26 | 2021-06-15 | 北京三快在线科技有限公司 | Damper, unmanned aerial vehicle foot rest and unmanned aerial vehicle |
| CN113944718A (en) * | 2021-09-08 | 2022-01-18 | 华中科技大学 | Shock-absorbing adjustable damper for automobile seat |
| CN114922931A (en) * | 2022-06-30 | 2022-08-19 | 上海蓝科建筑减震科技股份有限公司 | Damping coefficient adjustable double-order viscous damper |
| CN109322959B (en) * | 2018-11-12 | 2024-06-04 | 袁晓斌 | Shock absorber |
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2010
- 2010-10-28 CN CN201020584783XU patent/CN201818696U/en not_active Expired - Lifetime
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619294A (en) * | 2012-04-13 | 2012-08-01 | 成都市新筑路桥机械股份有限公司 | Damping coefficient automatically-adjusted damper |
| CN103075457A (en) * | 2012-10-23 | 2013-05-01 | 镇江铁科橡塑制品有限公司 | Leak-proof hydraulic auxiliary shock absorber |
| CN103062273A (en) * | 2013-01-21 | 2013-04-24 | 陕西理工学院 | Damping-adjustable elastic clay buffer for vehicle |
| CN103062273B (en) * | 2013-01-21 | 2015-04-22 | 陕西理工学院 | Damping-adjustable elastic clay buffer for vehicle |
| CN103867626A (en) * | 2014-04-09 | 2014-06-18 | 苏州市相城区明达复合材料厂 | Efficient rubber cushion |
| CN104595408A (en) * | 2015-01-30 | 2015-05-06 | 柳州市同进汽车零部件制造有限公司 | Shock absorption device of automobile |
| CN105351274A (en) * | 2015-12-14 | 2016-02-24 | 陈鸽 | Energy consumer and mechanical switch |
| CN107152486A (en) * | 2016-03-03 | 2017-09-12 | 株洲时代新材料科技股份有限公司 | A kind of viscous damper with hydraulic pressure fuse function |
| CN107152486B (en) * | 2016-03-03 | 2019-10-18 | 株洲时代新材料科技股份有限公司 | A kind of viscous damper with hydraulic fuse function |
| CN106321559A (en) * | 2016-10-20 | 2017-01-11 | 太原重型机械集团工程技术研发有限公司 | Modular hydraulic equipment and protecting device thereof |
| CN106438819A (en) * | 2016-11-29 | 2017-02-22 | 中国直升机设计研究所 | Pressure damper piston with dual-redundancy and dual-opening function |
| CN106762944A (en) * | 2016-12-28 | 2017-05-31 | 哈尔滨通用液压机械制造有限公司 | A kind of damping oil cylinder |
| CN107191530A (en) * | 2017-05-26 | 2017-09-22 | 中国民航大学 | A kind of twin coil piston magneto-rheological liquid shimmy-damper |
| CN107255134A (en) * | 2017-08-16 | 2017-10-17 | 中车青岛四方车辆研究所有限公司 | Viscoelastic medium buffer |
| CN107255134B (en) * | 2017-08-16 | 2019-04-30 | 中车青岛四方车辆研究所有限公司 | Viscoelastic medium buffer |
| CN108458032A (en) * | 2018-03-29 | 2018-08-28 | 青岛理工大学 | Built-in enhanced variable damping viscous damping devices |
| CN108860036A (en) * | 2018-07-26 | 2018-11-23 | 重庆交通职业学院 | A kind of automobile buffer beam adjustable damping formula hydraulic energy absorption mechanism |
| CN108860036B (en) * | 2018-07-26 | 2023-08-29 | 重庆交通职业学院 | Adjustable damping type hydraulic energy absorption mechanism for automobile anti-collision beam |
| CN109236932A (en) * | 2018-09-28 | 2019-01-18 | 常州大学 | A kind of symmetrical damper of fluid excitation solid granulates movement |
| CN109114154A (en) * | 2018-09-28 | 2019-01-01 | 常州大学 | A kind of metallic combination formula vibration isolator of rigidity independently of damping |
| CN109114154B (en) * | 2018-09-28 | 2020-07-07 | 常州大学 | Metal combined vibration isolator with rigidity independent of damping |
| CN109322959A (en) * | 2018-11-12 | 2019-02-12 | 袁晓斌 | A kind of damper |
| CN109322959B (en) * | 2018-11-12 | 2024-06-04 | 袁晓斌 | Shock absorber |
| CN110295557A (en) * | 2019-07-15 | 2019-10-01 | 中南大学 | A kind of avoiding collision that adaptive deformation that resisting uneven impact force resets |
| CN112963486A (en) * | 2021-03-26 | 2021-06-15 | 北京三快在线科技有限公司 | Damper, unmanned aerial vehicle foot rest and unmanned aerial vehicle |
| CN113944718A (en) * | 2021-09-08 | 2022-01-18 | 华中科技大学 | Shock-absorbing adjustable damper for automobile seat |
| CN114922931A (en) * | 2022-06-30 | 2022-08-19 | 上海蓝科建筑减震科技股份有限公司 | Damping coefficient adjustable double-order viscous damper |
| CN114922931B (en) * | 2022-06-30 | 2024-03-19 | 上海蓝科建筑减震科技股份有限公司 | Double-order viscous damper with adjustable damping coefficient |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |
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| CX01 | Expiry of patent term |