CN110359592B - Turbine formula viscous damper - Google Patents
Turbine formula viscous damper Download PDFInfo
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- CN110359592B CN110359592B CN201910671088.2A CN201910671088A CN110359592B CN 110359592 B CN110359592 B CN 110359592B CN 201910671088 A CN201910671088 A CN 201910671088A CN 110359592 B CN110359592 B CN 110359592B
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- steel basin
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- rotating shaft
- wire rope
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a turbine type viscous damper, which comprises a base, wherein a cylindrical steel basin is arranged on the base, the steel basin comprises a steel basin side wall, a steel basin top plate and a steel basin bottom plate, and viscous damping liquid is filled in the steel basin; rolling bearings are arranged at the centers of the steel basin top plate and the steel basin bottom plate, a rotating shaft is arranged between the rolling bearings through a rotating shaft bolt, the upper end of the rotating shaft penetrates out of the steel basin top plate, and a plurality of fan blades are arranged on the rotating shaft; the upper end of the rotating shaft is provided with a steel wire rope disc, a torsion spring is sleeved between the steel wire rope disc and the steel basin top plate, one end of the torsion spring is arranged on the steel basin top plate, the other end of the torsion spring is arranged on the steel wire rope disc, and a plurality of steel wire ropes are wound on the steel wire rope disc. The piston viscous damper is convenient to use, and effectively solves the problems of short stroke, large internal pressure, high processing precision of the cylinder body and the piston, easiness in oil leakage, large volume, high manufacturing cost and complex installation of the conventional piston viscous damper.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a turbine type viscous damper.
Background
The viscous damper is widely used in civil engineering and other fields, and has the mechanism that the viscous property of damping liquid is utilized to convert the energy of a structure into heat energy in high-speed flow and dissipate the heat energy, so that the aims of buffering the impact of an external load and protecting the safety of the structure are fulfilled.
At present, a viscous damper commonly adopted in the field of civil and architectural engineering is a piston type, and core components are an oil cylinder and a piston. The working principle is that the piston reciprocates in the cavity to extrude viscous damping liquid to pass through a small oil hole on the piston or a gap between the piston and the inner wall of the oil cylinder, and absorbed energy is converted into heat energy to be dissipated. The viscous damper is improved by controlling the distance between the piston and the inner wall of the oil cylinder or controlling the size and shape of the damping hole to improve the damping effect. However, in view of the whole piston type viscous damper, the piston is only a small part with limited occupied space, and the limitation of measures for improving the piston is obvious, because the length of the cavity of the oil cylinder is limited, the effective stroke of the viscous damper is correspondingly limited, and if a large-stroke damper is needed, the cavity is only enlarged and lengthened, so that the volume and the weight of the viscous damper are increased; when the piston type viscous damper works, the internal pressure of the oil cylinder is high, the wall of the oil cylinder is thick, the processing precision requirements of the oil cylinder and the piston are high, and the manufacturing cost is expensive generally; due to the structural characteristics of the piston and the oil cylinder, a sealing ring is easy to age, a piston rod is easy to wear, and the condition of liquid leakage can occur; the piston type viscous damper is complex to install, and complex components such as a spherical hinged support, a joint bearing and the like are required.
Disclosure of Invention
Aiming at the defects, the invention provides the turbine viscous damper which is convenient and fast to use and effectively solves the problems of short stroke, easy oil leakage, large volume, high manufacturing cost and complex installation of the existing piston viscous damper.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the turbine type viscous damper comprises a base, wherein a cylindrical steel basin is arranged on the base, the steel basin comprises a steel basin side wall, a steel basin top plate and a steel basin bottom plate, and viscous damping liquid is filled in the steel basin; rolling bearings are arranged at the centers of the steel basin top plate and the steel basin bottom plate, a rotating shaft is arranged between the rolling bearings through a rotating shaft bolt, the upper end of the rotating shaft penetrates out of the steel basin top plate, and a plurality of fan blades are arranged on the rotating shaft; the upper end of the rotating shaft is provided with a steel wire rope disc, a torsion spring is sleeved between the steel wire rope disc and the steel basin top plate, one end of the torsion spring is arranged on the steel basin top plate, the other end of the torsion spring is arranged on the steel wire rope disc, and a plurality of steel wire ropes are wound on the steel wire rope disc.
Further, the inner ring of the rolling bearing is higher than the outer ring, the rolling body and the retainer.
Furthermore, sealing rubber rings are arranged among the rotating shaft, the rolling bearing and the steel basin top plate.
Further, the lower end of the rotating shaft is not contacted with the basin bottom.
Further, the fan blades are connected with the rotating shaft through welding, tenon connection or bolt connection.
Further, the steel basin top plate is connected with the side wall of the steel basin through welding, clamping or threaded connection.
Further, when the steel basin top plate is connected with the steel basin side wall through a buckle or threads, a sealing rubber ring is arranged between the steel basin top plate and the steel basin side wall.
Furthermore, one end of the steel wire rope is fixed on the steel wire rope disc, and the other end of the steel wire rope is connected to the structure.
Further, the base is connected with the foundation through a plurality of base bolts.
The working principle is as follows: the base is connected with the bridge pier and the bridge tower through base bolts, the steel wire ropes are connected with the main beams, when the bridge and the building structure are under the action of earthquake and wind vibration, the main beams move, the steel wire ropes connected with the main beams pull the steel wire rope discs to rotate, so that the rotating shaft and the fan blades are driven to rotate, the rotation of the fan blades in the viscous liquid stirs the viscous damping liquid, the viscous damping liquid flows through gaps between the fan blades and the steel basin, and the rotating speed of the fan blades is slowed down when the rotating speed of the fan blades is less than that of the viscous liquid. Because of the flow of the viscous liquid, the kinetic energy of the fan blades is converted into heat energy to be dissipated, and the purpose of vibration reduction of the structure is achieved. The working principle of the viscous damper is that the reciprocating motion of a piston of the traditional viscous damper is optimized to the rotation of fan blades.
In summary, the invention has the following advantages:
1. the steel basin only plays a role of a container, when the blades move in the viscous liquid, the flow of the viscous liquid has no internal pressure on the steel basin, so that the steel basin only needs to be made of thin metal plates without fine processing such as milling, planing and the like, the price is obviously lower than that of an oil cylinder and a piston, and the whole manufacturing cost is low.
2. The steel basin has no internal pressure, so that the viscous damping liquid cannot leak after long-term use, and the problem of viscous liquid leakage caused by failure of the sealing ring in long-term use of the live-load damper is thoroughly solved.
3. The invention has simple installation process, only needs to connect the base with the bridge pier and the bridge tower by the base bolt, and the steel wire rope is connected with the movable main beam without using complicated and expensive connection modes such as a spherical hinged support and the like; and the structure is simple, all the connections adopt mechanical connection, and the installation, the disassembly and the maintenance are convenient.
4. The turbine viscous damper provided by the invention can set the length of the steel wire rope according to the actual engineering requirement, so that the effective damping stroke with any length of the actual engineering requirement is met; the steel wire rope can be connected in any direction according to actual requirements, and damping can be applied in any direction; the damping size of the viscous damper can be changed in a simple and effective mode of changing the number of the fan blades, changing the shapes of the fan blades and the like.
5. The invention is provided; if the steel basin top plate and the steel basin side wall adopt the buckle connection mode, the working condition of the internal components of the damper can be checked at any time, and the internal components can be maintained and replaced conveniently and timely.
6. According to the invention, the automatic retraction function of the steel wire rope is realized by adding the torsion spring, and the steel wire rope is ensured to be in a tensioning state all the time.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of fan blade installation;
FIG. 3 is an exploded view of the fan blade;
FIG. 4 is a cross-sectional view of the present invention;
FIG. 5 is an installation view of the present invention;
FIG. 6 is a schematic view of two continuous beams;
1011, a base; 1012. a base bolt; 1021. a steel basin side wall; 1022. a steel basin top plate; 1023. a steel basin bottom plate; 1024. a viscous damping fluid; 1031. a rolling bearing; 1041. a rotating shaft; 1042. a spindle bolt; 1043. a fan blade; 1051. a torsion spring; 1061. a wire rope reel; 1062. a steel cord.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
In one embodiment of the present invention, as shown in fig. 1-3, there is provided a turbine type viscous damper,
the damping device comprises a base 1011, wherein the base 1011 is connected with a foundation through a plurality of base bolts 1012, a cylindrical steel basin is arranged on the base 1011, the steel basin comprises a steel basin side wall 1021, a steel basin top plate 1022 and a steel basin bottom plate 1023, the steel basin top plate 1022 is connected with the steel basin side wall 1021 through a buckle, a sealing rubber ring is arranged between the steel basin top plate 1022 and the steel basin side wall 1021, and viscous damping liquid 1024 is filled in the steel basin; rolling bearings 1031 are arranged at the centers of the steel basin top plate 1022 and the steel basin bottom plate 1023, the inner rings of the rolling bearings 1031 are higher than the outer rings, the rolling bodies and the retainer, rotating shafts 1041 are arranged among the rolling bearings 1031 through rotating shaft bolts 1042, the lower ends of the rotating shafts 1041 are 2-3mm away from the steel basin bottom plate 1023, sealing rubber rings are arranged among the rotating shafts 1041, the rolling bearings 1031 and the steel basin top plate 1022, the upper ends of the rotating shafts 1041 penetrate through the steel basin top plate 1022, and the rotating shafts 1041 are connected with a plurality of fan blades 1043 through bolts; a wire rope reel 1061 is arranged at the upper end of the rotating shaft 1041, a torsion spring 1051 is sleeved between the wire rope reel 1061 and the steel basin top plate 1022, one end of the torsion spring 1051 is arranged on the steel basin top plate 1022, the other end of the torsion spring 1051 is arranged on the wire rope reel 1061, a plurality of wire ropes 1062 are wound on the wire rope reel 1061, one end of each wire rope 1062 is fixed on the wire rope reel 1061, and the other end of each wire rope 1062 is connected to a structure.
When the damping device is used, the base 1011 is connected with a pier and a bridge tower through the base bolts 1012, the steel wire ropes 1062 are connected with the main beam, when a bridge or a building structure is in an earthquake and wind vibration effect, the main beam moves, the steel wire ropes 1062 connected with the main beam pull the steel wire rope disc 1061 to rotate, so that the rotating shaft 1041 and the fan blades 1043 are driven to rotate, the rotation of the fan blades 1043 in viscous liquid extrudes the viscous damping liquid 1024, the viscous damping liquid 1024 flows through gaps between the fan blades 1043 and a steel basin, the rotating speed of the fan blades 1043 is slowed down when no viscous liquid exists, and due to the flowing of the viscous liquid, the kinetic energy of the fan blades 1043 is converted into heat energy to be dissipated, and the purpose of damping the.
While the present invention has been described in detail with reference to the illustrated embodiments, it should not be construed as limited to the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (9)
1. A turbine type viscous damper is characterized by comprising a base (1011), wherein a cylindrical steel basin is arranged on the base (1011), the steel basin comprises a steel basin side wall (1021), a steel basin top plate (1022) and a steel basin bottom plate (1023), and viscous damping liquid (1024) is filled in the steel basin; rolling bearings (1031) are arranged at the centers of the steel basin top plate (1022) and the steel basin bottom plate (1023), a rotating shaft (1041) is connected between the rolling bearings (1031) through a rotating shaft bolt (1042), the upper end of the rotating shaft (1041) penetrates through the steel basin top plate (1022), and a plurality of fan blades (1043) are arranged on the rotating shaft (1041); a steel wire rope reel (1061) is arranged at the upper end of the rotating shaft (1041), a torsion spring (1051) is sleeved between the steel wire rope reel (1061) and the steel basin top plate (1022), one end of the torsion spring (1051) is arranged on the steel basin top plate (1022), the other end of the torsion spring (1051) is arranged on the steel wire rope reel (1061), and a plurality of steel wire ropes (1062) are wound on the steel wire rope reel (1061).
2. Turbine viscous damper according to claim 1, characterized in that the inner ring of the rolling bearing (1031) is higher than the outer ring, the rolling bodies and the cage.
3. The turbine viscous damper of claim 1, characterized in that sealing rubber rings are arranged between the rotating shaft (1041), the rolling bearing (1031) and the steel basin top plate (1022).
4. A turbo viscous damper according to claim 1, characterized in that the lower end of the rotating shaft (1041) is not in contact with the basin bottom.
5. The turbo viscous damper of claim 1, wherein the fan blades (1043) are connected to the shaft (1041) by welding, a bayonet connection, or a bolt connection.
6. A turbo viscous damper according to claim 1, characterized in that the steel basin top plate (1022) is welded, snapped or screwed to the steel basin side wall (1021).
7. The turbine viscous damper of claim 6, characterized in that a sealing rubber ring is arranged between the steel basin top plate (1022) and the steel basin side wall (1021) when the steel basin top plate (1022) and the steel basin side wall (1021) are connected by a snap or a screw.
8. A turbo-type viscous damper according to claim 1, wherein the wire rope (1062) is fixed at one end to the wire rope reel (1061) and at the other end to a structure.
9. A turbo viscous damper according to claim 1, characterized in that the base (1011) is connected to the foundation by means of a number of base bolts (1012).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910671088.2A CN110359592B (en) | 2019-07-24 | 2019-07-24 | Turbine formula viscous damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910671088.2A CN110359592B (en) | 2019-07-24 | 2019-07-24 | Turbine formula viscous damper |
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| CN110359592A CN110359592A (en) | 2019-10-22 |
| CN110359592B true CN110359592B (en) | 2020-06-30 |
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| CN201910671088.2A Active CN110359592B (en) | 2019-07-24 | 2019-07-24 | Turbine formula viscous damper |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003163B (en) * | 2019-11-21 | 2022-06-07 | 深圳市道通智能航空技术股份有限公司 | Folding oar mechanism and unmanned vehicles |
| CN111288119B (en) * | 2020-02-14 | 2021-09-14 | 同济大学 | Three-dimensional vibration isolation device combining inertial container and friction pendulum support |
| CN113152718A (en) * | 2021-04-14 | 2021-07-23 | 董道卫 | Anti-seismic damping wall for building and mounting structure thereof |
| CN114809350B (en) * | 2022-05-23 | 2023-10-17 | 福建省中霖工程建设有限公司 | Damping structure and method for low-energy-consumption building |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003247583A (en) * | 2002-02-21 | 2003-09-05 | Nifco Inc | Rotary damper |
| CN101972522B (en) * | 2010-11-11 | 2011-12-14 | 长安大学 | Hydraulic resistance type tall building escape device |
| JP2014066261A (en) * | 2012-09-24 | 2014-04-17 | Nidec Sankyo Corp | Damper device |
| CN105173927A (en) * | 2015-08-27 | 2015-12-23 | 济南大学 | Main shaft type torsion rope receiving device |
| CN106948639A (en) * | 2017-04-14 | 2017-07-14 | 同济大学 | Spiralism type viscous damper |
| CN109487679A (en) * | 2018-12-24 | 2019-03-19 | 长安大学 | A kind of rotation viscous damping devices |
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Effective date of registration: 20200713 Address after: No.111, Section 1, North 2nd Ring Road, Chengdu, Sichuan 610031 Co-patentee after: China National Railway Group Co.,Ltd. Patentee after: SOUTHWEST JIAOTONG University Co-patentee after: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Address before: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee before: SOUTHWEST JIAOTONG University |
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