CN211312916U - Shear thickening fluid torsional damper with speed amplification effect - Google Patents
Shear thickening fluid torsional damper with speed amplification effect Download PDFInfo
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- CN211312916U CN211312916U CN201921431904.4U CN201921431904U CN211312916U CN 211312916 U CN211312916 U CN 211312916U CN 201921431904 U CN201921431904 U CN 201921431904U CN 211312916 U CN211312916 U CN 211312916U
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- shear thickening
- flywheel
- nut
- thickening fluid
- torsional damper
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Abstract
The utility model discloses a shear thickening fluid torsional damper with speed amplification effect, which comprises a displacement part, a transmission component, a flywheel and a sealed cabin; the displacement piece includes bearing plate and connecting piece, ball, drive assembly is ball, ball includes nut and lead screw, the nut is connected with screw drive, all with connecting piece fixed connection on the lateral wall about the nut, the utility model discloses a turn rate that turns into the flywheel with the vertical speed of bearing plate will receive the resistance that increases along with the turn rate increase when flying the wheel rotates in the shear thickening liquid to structural energy consumption damping has been realized.
Description
Technical Field
The utility model relates to a torsional damper equipment technical field specifically is a shear thickening fluid torsional damper with speed amplification effect.
Background
With the rapid development of modern industry and the increasing expansion of urban scale, the influence of vibration on living environment and work has attracted people's attention, and impact and vibration are common natural phenomena and widely exist in industrial production and earthquake. In order to avoid disturbance and damage due to vibration, society has come to pay high attention to energy absorption and dissipation of impact and vibration, and seismic isolation devices have an important role in actual engineering, such as mechanical equipment, civil engineering, and the like.
Traditional vibration isolation support systems can be divided into three categories: the first type is a laminated rubber support shock isolation system which comprises a rubber support, a lead core rubber support and the like, wherein the support realizes shock isolation by prolonging the basic natural vibration period of the structure, but the resonance effect cannot be completely avoided due to different periodic frequencies of different earthquakes; the second type is a friction sliding support shock insulation system, the support is mainly used for shock insulation through friction energy consumption, the shock insulation capability of the support mainly depends on a friction coefficient, and the problem of larger discreteness of the friction coefficient is possibly caused because the contact surface of a sliding friction layer is large and the sliding surface is difficult to ensure the level; the third type is a composite shock insulation support system which mainly utilizes the parallel connection or the serial connection of a rubber support and a sliding support to form a composite shock insulation system, but the structure of the support composite shock insulation support system is complex, and the displacement of a shock insulation layer is large.
From the perspective of the materials used, students usually adopt rubber supports, hydraulic oil damper supports and the like, but the damping effect provided by these supports is not ideal, so the students begin to try to introduce intelligent materials (magnetorheological fluid, electrorheological fluid and the like) into the supports, however, the intelligent materials need external input energy, which is difficult to meet in practical engineering. However, STFs do not exhibit a large increase in viscosity at low shear rates, and thus, this type of mount has limited damping effects for low speed impacts. The method of amplifying the impact velocity to which the pedestal is subjected by increasing the height of the pedestal is not suitable. Because the support and the damper are arranged in engineering, the structure is not required to be deformed excessively in the direction, namely the travel of the support, the damper and the like is limited by the installation space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shear thickening fluid torsional damper with speed amplification effect to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a shear thickening fluid torsional damper with a speed amplification effect comprises a displacement member, a transmission assembly, a flywheel and a sealed cabin;
the displacement piece includes bearing plate and connecting piece, ball, drive assembly is ball, ball includes nut and lead screw, the nut is connected with the lead screw transmission, all with connecting piece fixed connection on the lateral wall about the nut, the upper end and the bearing plate fixed connection of connecting piece, the lower extreme and the flywheel fixed connection of lead screw, the flywheel sets up the outside at the sealed cabin.
As a further aspect of the present invention: the connecting piece is an L-shaped plate, one end of the L-shaped plate is fixedly connected to the outer side wall of the upper end of the nut, and the other end of the L-shaped plate is fixedly connected to the bearing plate.
As a further aspect of the present invention: the upper surface and the lower surface of the flywheel are both provided with an s-shaped groove, and a spiral small hole is formed in the s-shaped groove.
As a further aspect of the present invention: and a connecting rod is fixedly connected between the flywheel and the screw rod.
As a further aspect of the present invention: the sealed cabin is provided with a circular hole, the outer side wall of the connecting rod is fixedly connected with a sealing ring, and the connecting rod is rotatably connected in the circular hole.
As a further aspect of the present invention: the sealed cabin is filled with shear thickening liquid.
As a further aspect of the present invention: and a spring is fixedly connected between the sealed cabin and the lower end of the nut.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that by arranging the ball screw, when the bearing plate is subjected to vertical downward impact force, the nut moves downwards to be converted into the rotation of the screw, so that the flywheel rotates in the sealed cabin; the shear thickening fluid torsional damper with the speed amplification effect converts the vertical speed of the bearing plate into the rotating speed of the flywheel, and when the flywheel rotates in the shear thickening fluid, the flywheel is subjected to resistance increased along with the increase of the rotating speed, so that energy consumption and vibration reduction in structure are realized.
Drawings
FIG. 1 is a schematic view of a shear thickening fluid torsional damper with velocity amplification;
FIG. 2 is a schematic diagram of a flywheel in a shear thickening fluid torsional damper with a velocity amplification effect;
FIG. 3 is a cross-sectional view of a flywheel in a shear thickening fluid torsional damper having a velocity amplification effect;
in the figure: 1-nut, 2-connecting piece, 3-bearing plate, 4-flywheel, 5-sealed cabin, 6-connecting rod, 7-shear thickening liquid, 8-spring and 9-screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in an embodiment of the present invention, a shear thickening fluid torsional damper with a speed amplification effect includes a displacement member, a transmission assembly, a flywheel 4 and a sealed cabin 5;
the displacement piece includes bearing plate 3 and connecting piece 2, and ball, drive assembly are ball, and ball includes nut 1 and lead screw 9, and nut 1 is connected with the transmission of lead screw 9, all with connecting piece 2 fixed connection on the lateral wall about nut 1, the upper end and the bearing plate 3 fixed connection of connecting piece 2, the lower extreme and the flywheel 4 fixed connection of lead screw 9, flywheel 4 sets up the outside at sealed cabin 5.
Connecting piece 2 is the L shaped plate, and the one end fixed connection of L shaped plate is on the lateral wall of 1 upper end of nut, and other end fixed connection has realized being connected between nut 1 and the bearing plate 3 through the L shaped plate on bearing plate 3.
Referring to fig. 2, the upper surface and the lower surface of the flywheel 4 are both provided with s-shaped grooves, spiral small holes are formed in the s-shaped grooves, and when the flywheel rotates, part of shear thickening liquid flows along the grooves and generates a shear thickening phenomenon, so that the energy consumption purpose is achieved.
Referring to fig. 3, the flywheel 4 has a spiral hole inside, when the flywheel rotates, a part of the shear thickening fluid flows along the hole, and the shear thickening fluid flowing through the hole generates a shear thickening phenomenon, thereby achieving the purpose of dissipating energy.
The connecting rod 6 is fixedly connected between the flywheel 4 and the screw rod 9, and the connection between the flywheel 4 and the screw rod 9 is realized through the connecting rod 6.
The round hole has been seted up on the sealed cabin 5, fixedly connected with sealing washer on the lateral wall of connecting rod 6, and connecting rod 6 rotates to be connected in the round hole, and the sealing washer has realized the sealing connection between sealed cabin 5 and the connecting rod 6.
The sealed cabin 5 is filled with shear thickening liquid 7.
Set up flywheel 4 in sealed cabin 5, because flywheel 4 can be at shear thickening liquid 7 internal rotations, simultaneously because flywheel 4 can take place the rubbing action with shear thickening liquid 7 at the rotation in-process, shear thickening liquid 7 can hinder flywheel 4 to rotate because the effect of liquid resistance simultaneously, and the effect of shear thickening liquid 7 damping force can hinder the driving force of flywheel 4 in vertical direction.
And a spring 8 is fixedly connected between the sealed cabin 5 and the lower end of the nut 1, and the spring 8 is convenient for the reset movement of the nut 1.
The utility model discloses when using, when bearing plate 3 received vertical decurrent impact force, connecting piece 2 turned into nut 1 with bearing plate 3 downstream and moved down on lead screw 9, consequently, screw 9 rotates at nut 1 downstream in-process, and then drive the rotation of flywheel 4 through connecting rod 6, flywheel 4 rotates in shear thickening liquid 7, cutting shear thickening liquid 7 produces damping force, according to shear thickening liquid 10 self characteristic, the slew velocity is faster, the damping force is bigger, this damping force can restrain flywheel 4's rotation, thereby restrain the ball screw rotation, thereby restrain bearing plate 3's linear motion, equivalent to increased "equivalent spring" who restraines its linear motion for bearing plate 3; when the bearing plate 3 is not subjected to downward impact force, the nut 1 drives the connecting piece 2 to realize that the bearing plate 3 moves upwards due to the reset upward movement process of the spring 8, and then the bearing plate 3 is located at the initial position.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. A shear thickening fluid torsional damper having a velocity amplification effect, characterized by: comprises a displacement member, a transmission component, a flywheel (4) and a sealed cabin (5);
the displacement piece includes bearing plate (3) and connecting piece (2), ball, drive assembly is ball, ball includes nut (1) and lead screw (9), nut (1) is connected with lead screw (9) transmission, all with connecting piece (2) fixed connection on the lateral wall about nut (1), the upper end and the bearing plate (3) fixed connection of connecting piece (2), the lower extreme and flywheel (4) fixed connection of lead screw (9), flywheel (4) set up the outside at sealed cabin (5).
2. The shear thickening fluid torsional damper with velocity amplification according to claim 1, wherein the connecting member (2) is an L-shaped plate having one end fixedly connected to the outer sidewall of the upper end of the nut (1) and the other end fixedly connected to the bearing plate (3).
3. The shear thickening fluid torsional damper with the speed amplification effect according to claim 1, wherein the upper and lower surfaces of the flywheel (4) are both provided with s-shaped grooves, and the s-shaped grooves are internally provided with spiral small holes.
4. Shear thickening fluid torsional damper with velocity amplification according to claim 1, characterized in that a connecting rod (6) is fixedly connected between the flywheel (4) and the screw (9).
5. The shear thickening fluid torsional damper with the speed amplification effect according to claim 4, wherein a circular hole is formed in the sealed cabin (5), a sealing ring is fixedly connected to the outer side wall of the connecting rod (6), and the connecting rod (6) is rotatably connected in the circular hole.
6. The shear thickening fluid torsional damper with velocity amplification according to claim 1, wherein the sealed chamber (5) contains shear thickening fluid (7).
7. The shear thickening fluid torsional damper with velocity amplification according to claim 1, wherein a spring (8) is fixedly connected between the capsule (5) and the lower end of the nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431904.4U CN211312916U (en) | 2019-08-30 | 2019-08-30 | Shear thickening fluid torsional damper with speed amplification effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921431904.4U CN211312916U (en) | 2019-08-30 | 2019-08-30 | Shear thickening fluid torsional damper with speed amplification effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211312916U true CN211312916U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921431904.4U Expired - Fee Related CN211312916U (en) | 2019-08-30 | 2019-08-30 | Shear thickening fluid torsional damper with speed amplification effect |
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| CN (1) | CN211312916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499835A (en) * | 2019-08-30 | 2019-11-26 | 哈尔滨工业大学（深圳） | Shear thickening liquid torsional damper and its application method under a kind of low velocity impact |
| CN112761270A (en) * | 2021-01-06 | 2021-05-07 | 南京长江都市建筑设计股份有限公司 | Vertical inertial container shock insulation support |
-
2019
- 2019-08-30 CN CN201921431904.4U patent/CN211312916U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499835A (en) * | 2019-08-30 | 2019-11-26 | 哈尔滨工业大学（深圳） | Shear thickening liquid torsional damper and its application method under a kind of low velocity impact |
| CN110499835B (en) * | 2019-08-30 | 2024-04-19 | 哈尔滨工业大学（深圳） | Shear thickening fluid torsion damper under low-speed impact and application method thereof |
| CN112761270A (en) * | 2021-01-06 | 2021-05-07 | 南京长江都市建筑设计股份有限公司 | Vertical inertial container shock insulation support |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 Termination date: 20210830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |