CN204025504U - Self-resetting viscous damper - Google Patents
Self-resetting viscous damper Download PDFInfo
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- CN204025504U CN204025504U CN201420448349.7U CN201420448349U CN204025504U CN 204025504 U CN204025504 U CN 204025504U CN 201420448349 U CN201420448349 U CN 201420448349U CN 204025504 U CN204025504 U CN 204025504U
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- master cylinder
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Abstract
The utility model discloses a kind of Self-resetting viscous damper, comprise by the interconnective master cylinder of link and secondary cylinder, viscous damping liquid is full of in master cylinder, master cylinder is provided with master cylinder cover, secondary cylinder is provided with secondary cylinder cap, guide rod is provided with in master cylinder and secondary cylinder, one end of guide rod is positioned at outside master cylinder through master cylinder cover, the other end of guide rod passes master cylinder and stretches in secondary cylinder, guide rod is provided with piston, between link and secondary cylinder cap, axially many spring rods are provided with in described secondary cylinder, spring rod is arranged at around guide rod, spring rod is movably set with balance plate, balance plate is fixedly connected with the end of guide rod, every root spring rod is all coated with a pair Returnning spring, one of them Returnning spring is arranged between balance plate and link, another Returnning spring is arranged between balance plate and secondary cylinder cap.The utility model Self-resetting viscous damper can realize piston automatic-resetting, effectively eliminates the residual displacement of structure, and structure is simple, stable performance.
Description
Technical field
The utility model belongs to antivibration area, is specifically a kind of viscous damper with Self-resetting function.
Background technique
Viscous damper has the feature of little rigidity, highly energy-consuming; its damping mechanism is the energy concentrated by the viscosity property of damp liquid and hole contracting effect in dissipation input structure, thus reaches the object reducing structural vibration (earthquake or wind shake) reaction, protection agent structure safety.
The assembly of the viscous damper of prior art comprises by the interconnective master cylinder of link and secondary cylinder, and be full of viscous damping liquid in master cylinder, master cylinder is provided with master cylinder cover, and secondary cylinder is provided with secondary cylinder cap, and piston slides in master cylinder.But there is certain shortcoming in this viscous damper: after vibration terminates, damper piston cannot reset to the medium position of master cylinder, and this makes to occur certain residual displacement in structure.
Model utility content
The utility model main purpose is: provide a kind of viscous damper that can realize auto-reset function, effectively can eliminate residual displacement, and structure is simple, stable performance.
The utility model solves the technological scheme that its technical problem adopts: a kind of Self-resetting viscous damper, comprise by the interconnective master cylinder of link and secondary cylinder, viscous damping liquid is full of in master cylinder, master cylinder is provided with master cylinder cover, secondary cylinder is provided with secondary cylinder cap, guide rod is provided with in master cylinder and secondary cylinder, one end of guide rod is positioned at outside master cylinder through master cylinder cover, the other end of guide rod passes master cylinder and stretches in secondary cylinder, guide rod is provided with piston, between link and secondary cylinder cap, axially many spring rods are provided with in described secondary cylinder, spring rod is arranged at around guide rod, spring rod is movably set with balance plate, balance plate is fixedly connected with the end of guide rod, every root spring rod is all coated with a pair Returnning spring, one of them Returnning spring is arranged between balance plate and link, another Returnning spring is arranged between balance plate and secondary cylinder cap.
As preferably, the quantity of described spring rod is 4, is evenly distributed on respectively around guide rod.
The utility model compared with prior art, has the following advantages:
One, after external force is removed, the balance plate of secondary cylinder interior can reset under the effect of Returnning spring, and the reset of balance plate can drive guide rod and piston together to reset, thus effectively eliminates the residual displacement of structure, improves the performance of whole damper.
Two, Returnning spring can also play buffer function to the piston of high speed operation with coordinating of balance plate.
Three, the automatic runback device of the composition such as spring rod, Returnning spring and balance plate utilizes secondary cylinder as installing space, does not affect the total length of damper, insensitive to the cost of damper.
Four, the utility model Self-resetting viscous damper adopts assembling type assembly, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Self-resetting viscous damper.
Fig. 2 is the structural representation of automatic runback device in the utility model Self-resetting viscous damper.
Fig. 3 is the structural representation of piston in the utility model Self-resetting viscous damper.
Fig. 4 is the fore-end structural representation of master cylinder in the utility model Self-resetting viscous damper.
Fig. 5 is the structural representation of balance plate in the utility model Self-resetting viscous damper.
Shown in figure: 1, master cylinder 2, secondary cylinder 3, link 4, viscous damping liquid 5, master cylinder cover 6, secondary cylinder cap 7, piston 8, guide rod 9, spring rod 10, balance plate 11, Returnning spring 12, guide sleeve 13, connecting lug 14, secondary cylinder earrings 15, first spring pedestal 16, second spring pedestal 17, set screw nut 18, through hole 19, PTFE combined seal ring 20, rectangular seal 21, damper bar 22, semi-cyclic linkage 23, pressing plate 24, rubber II O RunddichtringO 25, wear ring.
embodiment
Below by drawings and Examples, the utility model is further elaborated.
As shown in Figure 1: a kind of Self-resetting viscous damper, comprise master cylinder 1 and secondary cylinder 2, master cylinder 1 and secondary cylinder 2 are interconnected by link 3, but are not connected.Be full of viscous damping liquid 4 in master cylinder 1, viscous damping liquid 4 adopts dimethicone.Master cylinder 1 is provided with master cylinder cover 5, and secondary cylinder 2 is provided with secondary cylinder cap 6.Guide rod 8 is provided with in master cylinder 1 and secondary cylinder 2, one end of guide rod 8 is positioned at outside master cylinder 1 through master cylinder cover 5, the other end of guide rod 8 passes master cylinder 1 and stretches in secondary cylinder 2, guide rod 8 is provided with piston 7, piston 7 is positioned at master cylinder 1, along with structural vibration, piston 7 in master cylinder 1 along with guide rod 8 is reciprocating.The structure of above-mentioned master cylinder 1 and secondary cylinder 2 is not model utility emphasis, and key technology point of the present utility model is to be provided with automatic runback device in secondary cylinder 2, can realize automatically reseting of piston 7 by this automatic runback device, eliminates the residual displacement of structure.
Carry out expansion below in conjunction with Fig. 1 and Fig. 2 to automatic runback device to describe: automatic runback device comprises Returnning spring 11, balance plate 10 and the spring rod 9 for supporting Returnning spring 11
.between link 3 and secondary cylinder cap 6, be axially provided with many spring rods 9 in secondary cylinder 2, one end of spring rod 9 is fixed on secondary cylinder cap 6, and the other end is fixed on link 3.Spring rod 9 is distributed in guide rod 8 around, balance plate 10 offers through hole 18, and spring rod 9 is flexibly connected with balance plate 10 through through hole 18.Balance plate 10 is fixedly connected with the end of guide rod 8, and when guide rod 8 to-and-fro motion, balance plate 10 along with guide rod 8 to-and-fro motion, and is subject to the leading role of spring rod 9 in movement process.
In the present embodiment, balance plate 10 is annular slab, and above-mentioned through hole 18 equal angles mentioned is distributed in the periphery of annular slab, the position of multiple through hole 18 respectively with the position one_to_one corresponding of many spring rods 9, make every root spring rod 9 just in time can pass a through hole 18.Meanwhile, ensure that the diameter of through hole 18 is slightly larger than the diameter of spring rod 9, to avoid the friction of balance plate 10 in reciprocating process and between spring rod 9, can be free to slide along spring rod 9 to make balance plate 10.
As shown in Figure 2: every root spring rod 9 is all coated with a pair Returnning spring 11, and one of them Returnning spring 11 is arranged between balance plate 10 and link 3, and another Returnning spring 11 is arranged between balance plate 10 and secondary cylinder cap 6.Paired Returnning spring 11 specification is identical and be symmetrical arranged, and so, the uniform force of balance plate 10 both sides, can realize automatically accurately resetting under the effect of Returnning spring 11.In the present embodiment, the end face being positioned at link 3 in secondary cylinder 2 is provided with the first spring pedestal 15, the end face being positioned at secondary cylinder cap 6 in secondary cylinder 2 is provided with the second spring pedestal 16.The one end being arranged at the Returnning spring 11 between balance plate 10 and link 3 is fixed on balance plate 10, and the other end is fixed on the first spring pedestal 15.The one end being arranged at the Returnning spring 11 between balance plate 10 and secondary cylinder cap 6 is fixed on balance plate 10, and the other end is fixed on the second spring pedestal 16.One end that guide rod 8 stretches in secondary cylinder 2 is fixedly connected with by set screw nut 17 with balance plate 10.
As shown in Figure 2 and Figure 5: in the present embodiment, the quantity of spring rod 9 is preferably 4, is evenly distributed on guide rod 8 respectively around.Adopt 4 spring rods 9, relatively should have 4 pairs of Returnning springs 11, so, balance plate 10 is stressed to be balanced more, and the reset effect of whole automatic runback device is better.Certainly, spring rod 9 is 4 just a kind of preferred versions, and the visual actual conditions of quantity of spring rod 9 do suitable increase and decrease, and such as 2,3 or other any rational radical, all can be the utility model and adopted.
The utility model Self-resetting viscous damper, after external force is removed, the Returnning spring 11 of balance plate 10 both sides can reset by driven equilibrium plate 10, the reset of balance plate 10 can drive guide rod 8 and piston 7 together to reset, with the medium position making piston 7 automatically revert to master cylinder 1, thus reach the object of the residual displacement eliminating structure.Meanwhile, Returnning spring 11 can also play buffer function to the piston 7 of high speed operation with coordinating of balance plate 10.Paired Returnning spring 11 specification is identical and be symmetrical arranged, and so, the uniform force of balance plate 10 both sides, can realize automatically accurately resetting under the effect of Returnning spring 11.
In addition, in the utility model Self-resetting viscous damper, the automatic runback device of the composition such as spring rod 9, Returnning spring 11 and balance plate 10 utilizes secondary cylinder 2 as installing space, do not affect the total length of damper, insensitive to the cost of damper, meanwhile, automatic runback device adopts assembling type assembly, easy to maintenance.
Returnning spring 11 adopts silicomangan material to make, and bearing capacity and rigidity can be selected according to the performance of damper.In same Self-resetting viscous damper, the specification of each Returnning spring 11 is all identical, and when damper is unloaded, balance plate 10 can automatically reset to the medium position of secondary cylinder 2, and now piston 7 is also reset to the medium position of master cylinder 1.
Master cylinder 1 and secondary cylinder 2 all adopt material to be the seamless steel pipe of 45# steel, and outer surface adopts Nickel Plating Treatment, to strengthen durability.The material that guide rod 8 adopts is 40cr, outer surface hard chromium plating, to strengthen corrosion resistance.
As shown in Figure 1 and Figure 4: top and the bottom of master cylinder 1 inside are respectively arranged with guide sleeve 12, guide sleeve 12 can ensure the straight path of guide rod 8 when moving.Adopt PTFE combined seal ring 19 to seal between guide sleeve 12 and guide rod 8, sealed by rectangular seal 20 between guide sleeve 12 and master cylinder 1.
As shown in Figure 3: piston 7 is arranged damping hole 2.Add and by pressure, damper bar 21 is squeezed into damping hole man-hour.By the cooperation of 4 semi-cyclic linkages 22 and 2 pressing plates 23, piston 7 is fixed on the precalculated position of guide rod 8, ensures piston 7 and guide rod 8 synchronous operation.Rubber II O RunddichtringO 24 is set between piston 7 and guide rod 8, wear ring 25 is set between the inwall of piston 7 and master cylinder 1.
In addition, Self-resetting viscous damper also comprises connecting lug 13 and secondary cylinder earrings 14, one end that connecting lug 13 and guide rod 8 are positioned at master cylinder 1 outside is fixedly connected with, secondary cylinder earrings 14 is fixedly connected with secondary cylinder cap 6, and connecting lug 13 and secondary cylinder earrings 14 are all for being connected with the construction element of outside need vibration damping.
Claims (2)
1. a Self-resetting viscous damper, comprise by the interconnective master cylinder of link and secondary cylinder, viscous damping liquid is full of in master cylinder, master cylinder is provided with master cylinder cover, secondary cylinder is provided with secondary cylinder cap, guide rod is provided with in master cylinder and secondary cylinder, one end of guide rod is positioned at outside master cylinder through master cylinder cover, the other end of guide rod passes master cylinder and stretches in secondary cylinder, guide rod is provided with piston, it is characterized in that: in described secondary cylinder, between link and secondary cylinder cap, be axially provided with many spring rods, spring rod is arranged at around guide rod, spring rod is movably set with balance plate, balance plate is fixedly connected with the end of guide rod, every root spring rod is all coated with a pair Returnning spring, one of them Returnning spring is arranged between balance plate and link, another Returnning spring is arranged between balance plate and secondary cylinder cap.
2. Self-resetting viscous damper according to claim 1, is characterized in that: the quantity of described spring rod is 4, is evenly distributed on respectively around guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448349.7U CN204025504U (en) | 2014-08-11 | 2014-08-11 | Self-resetting viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448349.7U CN204025504U (en) | 2014-08-11 | 2014-08-11 | Self-resetting viscous damper |
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| Publication Number | Publication Date |
|---|---|
| CN204025504U true CN204025504U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420448349.7U Active CN204025504U (en) | 2014-08-11 | 2014-08-11 | Self-resetting viscous damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154160A (en) * | 2014-08-11 | 2014-11-19 | 浙江建科减震科技有限公司 | Self-resetting viscous damper |
| CN106740777A (en) * | 2015-11-20 | 2017-05-31 | 上海汇众汽车制造有限公司 | Two-cylinder type braking Fu Gang mechanisms |
| CN111663433A (en) * | 2020-07-08 | 2020-09-15 | 中国民航大学 | Self-resetting SMA-viscous vibration reduction damper |
-
2014
- 2014-08-11 CN CN201420448349.7U patent/CN204025504U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154160A (en) * | 2014-08-11 | 2014-11-19 | 浙江建科减震科技有限公司 | Self-resetting viscous damper |
| CN104154160B (en) * | 2014-08-11 | 2017-01-11 | 浙江建科减震科技有限公司 | Self-resetting viscous damper |
| CN106740777A (en) * | 2015-11-20 | 2017-05-31 | 上海汇众汽车制造有限公司 | Two-cylinder type braking Fu Gang mechanisms |
| CN111663433A (en) * | 2020-07-08 | 2020-09-15 | 中国民航大学 | Self-resetting SMA-viscous vibration reduction damper |
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