CN114562052A - Gear and rack type tuning inertia damper - Google Patents
Gear and rack type tuning inertia damper Download PDFInfo
- Publication number
- CN114562052A CN114562052A CN202210378256.0A CN202210378256A CN114562052A CN 114562052 A CN114562052 A CN 114562052A CN 202210378256 A CN202210378256 A CN 202210378256A CN 114562052 A CN114562052 A CN 114562052A
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- Prior art keywords
- rack
- gear
- inertial mass
- top plate
- spring
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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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- 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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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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
- E04H9/0237—Structural braces with damping devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of building shock absorption, and discloses a gear and rack type tuned inertial mass damper. The damping device comprises a sleeve, wherein a closed damping cavity is arranged in the sleeve and is filled with viscous damping fluid, a gear and rack transmission structure is arranged in the damping cavity, an inertial mass element is fixed on the gear and rack transmission structure and is connected with a main body structure outside the damping cavity and a spring element, the gear and rack transmission structure can convert axial motion into circumferential motion and simultaneously drive the inertial mass element to rotate, and horizontal force transmission between the inertial mass element and the spring element can be realized. The invention converts the axial speed of the two ends of the damper into the angular speed of the motion of the mass block by means of the gear rack, and utilizes the convex plates on the side surfaces of the mass block to stir viscous damping liquid in the rotating process to consume energy. Compared with a ball screw type tuned inertial mass damper, the damper is simple in structure, easy to process and excellent in vibration reduction capability.
Description
Technical Field
The invention relates to the technical field of building shock absorption, in particular to a rack and pinion type tuned inertial mass damper.
Background
The tuned inertial mass damper is a very distinctive vibration control device proposed in recent years, and is composed of an inertial mass element, a damping element and a spring element, which respectively provide inertial mass (also called apparent mass), damping and rigidity. At present, the ball screw is used to amplify the inertia mass at home and abroad. However, the ball screw type tuned inerter damper has the disadvantages of high processing difficulty, long supply period and high cost due to the precision of parts, especially the ball screw used as a core part, and is not favorable for wide application in building engineering. Based on the current situation, the gear and rack type tuned inertial mass damper is invented, and has the advantages of simple structure, easiness in processing and excellent vibration reduction capability.
Disclosure of Invention
The invention provides a gear and rack type tuning inertial mass damper for solving the technical problems in the prior art.
Preferably, the rack and pinion transmission structure includes the rack axle, the rack axle runs through the damping chamber, the surface of rack axle is equipped with the rack, the rack cooperation is connected with the gear, the gear is fixed with the inertial mass component, drives when gear revolve and is used the inertial mass component to rotate together.
In order to realize the purpose, the invention adopts the following technical scheme: the utility model provides a rack and pinion formula harmonious inertial mass attenuator, includes the sleeve, be equipped with confined damping chamber in the sleeve and fill up viscous damping liquid, rack and pinion transmission structure is installed to the damping chamber, rack and pinion transmission structure is fixed with the inertial mass component to connect the outer major structure of damping chamber, telescopic outside still is connected with spring element, rack and pinion transmission structure can turn into circumferential motion with axial motion, drives the inertial mass component simultaneously and rotates to can and the spring element between realize the horizontal transmission of power. The spring element is directly connected with the main body structure, vibration generated by the main body structure is directly and sequentially transmitted to the spring element and the gear rack transmission structure connected with the inertia element, and displacement of the main body structure is amplified.
Preferably, the assembly of the gear and the inertance element can be arranged in one or more groups on one side of the rack shaft, and can be arranged on one side or both sides of the rack shaft.
Preferably, the inertance element is a cylindrical mass.
Preferably, the mass block is located in the viscous damping liquid, and the convex plates are arranged on the front face and the rear face respectively and are used for stirring the viscous damping liquid to consume energy when the gear drives the mass block to rotate.
Preferably, the spring element comprises a spring, a guide rod, a first spring top plate and a second spring top plate, two ends of the guide rod are respectively fixed with the sleeve and the second spring top plate, the first spring top plate is slidably arranged on the guide rod, and the spring penetrates through the guide rod and is respectively positioned between the sleeve and the first spring top plate, and between the first spring top plate and the second spring top plate.
The invention has the beneficial effects that:
1. according to the invention, the axial speeds of the two ends of the damper are converted into the angular speed of the motion of the mass block by means of the gear rack, and the viscous damping fluid is stirred by the convex plate on the side surface of the mass block in the rotating process to consume energy. Compared with a ball screw type tuned inertial mass damper, the damper is simple in structure, easy to process and excellent in vibration reduction capacity;
2. when the damper generates tuned vibration, the motion phase of the damping part is opposite to that of the spring part due to the inertia of the rotating mass and the resonance action of the spring, so that the displacement amplitude of the damping part is larger than the vibration input displacement, namely, the damper is favorable for generating large damping under small displacement.
3. The performance parameters of the damper can be quickly adjusted by changing the rigidity of the spring, the diameter of the gear, the diameter and the number of the mass blocks and the number of components consisting of the gear and the mass blocks.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. a rack shaft; 2. a rack; 3. a gear; 4. a mass block; 5. a convex plate; 6. a gear shaft; 7. a sleeve; 8. a left sealing plate; 9. a guide plate; 10. a right seal plate; 11. viscous damping fluid; 12. a left spherical hinge base; 13. a right spherical hinge base; 14. a spring; 15. a guide bar; 16. a first spring top plate; 17. a spring top plate II; 18. a limiting plate; 19. and a right axis.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): as shown in fig. 1-2, the device comprises a rack shaft, a rack, a gear, a mass block, a convex plate, a gear shaft, a sleeve, a left sealing plate, a guide plate, a right sealing plate, viscous damping liquid, a left spherical hinge seat, a right spherical hinge seat, a spring, a guide rod, a first spring top plate, a second spring top plate, a limiting plate and a right shaft.
The left end of the sleeve is connected with a left sealing plate, the right end of the sleeve is connected with a right sealing plate, a guide plate is arranged in the sleeve, the guide plate divides the interior of the sleeve into a left cavity and a right cavity, the left cavity is a damping cavity, viscous damping fluid is filled in the damping cavity, a rack and pinion transmission structure and a mass block are installed in the damping cavity, the right cavity is a cavity, a plurality of counter bores are formed in the inner surface of the side wall of the sleeve and used for fixing a gear shaft, the gear shaft can rotate, the left end of the rack shaft penetrates through the left sealing plate and is connected with a left ball hinge seat, a limiting plate is arranged after the right end of the rack shaft penetrates through the guide plate, the section of the rack shaft is square, a rack is arranged on the rack shaft between the left sealing plate and the guide plate, the distance from the leftmost tooth to the left sealing plate and the rightmost tooth to the guide plate are both larger than the design stroke, square holes are formed in the middles of the left sealing hole and the rack shaft, and a sealing assembly is arranged on the right sealing plate, a spring top plate and a spring top plate, the guide rod penetrates through the right sealing plate, the first spring top plate and the second spring top plate, the left side of the right sealing plate and the right side of the second spring top plate are fixed through nuts respectively, the guide rod is fixed with the right sealing plate and the second spring top plate, the first spring top plate is connected with the guide rod in a sliding mode, the spring penetrates through the guide rod and is located between the right sealing plate and the first spring top plate, the first spring top plate and the second spring top plate respectively, the right sealing plate, the first spring top plate and the second spring top plate serve as supporting faces of the spring, the spring on one side is compressed when the damper moves, a round hole is formed in the middle of the second spring top plate, the second spring top plate is penetrated through the left end of the right shaft and is fixedly connected with the first spring top plate, the right shaft right end is fixedly connected with the right ball hinged support, and the second spring top plate is connected with the right shaft in a sliding mode. The gear and the rack are meshed, the gear shaft penetrates through the gear and is embedded in the counter bore of the side wall of the sleeve, the mass blocks penetrate through the gear shaft and are located on two sides of the gear, one or more groups of components formed by the gear and the mass blocks can be arranged on one side of the rack shaft, meanwhile, the components can be arranged on one side or two sides of the rack shaft, the gear shaft is fixedly connected with the gear and the mass blocks, the inertia mass of the damper can be changed by the diameters of the gear and the mass blocks, one or more blocks of the mass blocks on each side of the gear can be arranged, the convex plates are arranged on the front side and the back side of the mass block on each side in the viscous damping liquid respectively, and when the gear drives the mass blocks to rotate, the convex plates are used for stirring the viscous damping liquid to dissipate energy.
The working principle of the embodiment is as follows: when the structure provided with the rack-and-pinion type tuned inertial mass damper generates interlayer deformation under the action of earthquake or wind vibration, springs on two sides of the damper generate compression deformation in turn so as to drive a rack shaft to perform horizontal axial movement, and further drive a gear and a mass block to rotate together. The rotary damping part generates damping force by driving the upper convex plate positioned on the mass block to stir in viscous damping liquid, so that energy consumption is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A rack and pinion type tuned inertial mass damper is characterized in that: the damping device comprises a sleeve, be equipped with confined damping chamber in the sleeve and fill up viscous damping fluid, rack and pinion transmission structure is installed to the damping chamber, rack and pinion transmission structure is fixed with and is used for the matter component to connect the outer major structure of damping chamber, telescopic outside still is connected with spring element, rack and pinion transmission structure can turn into axial motion circumferential motion, drives simultaneously and is used for the matter component rotation, and can and the spring element between the horizontal transmission of realization power.
2. The rack and pinion tuned inertial mass damper of claim 1, wherein: the rack and pinion transmission structure comprises a rack shaft, the rack shaft penetrates through the damping cavity, a rack is arranged on the surface of the rack shaft, the rack is connected with a gear in a matching mode, the gear and the inerter element are fixed, and the inerter element is driven to rotate together when the gear rotates.
3. The rack and pinion tuned inertial mass damper of claim 2, wherein: the assembly of the gear and the inertance element may be arranged in one or more groups on one side of the rack shaft, while being arranged on one or both sides of the rack shaft.
4. The rack and pinion tuned inertial mass damper of claim 1, wherein: the inertial mass element is a cylindrical mass block.
5. The rack and pinion tuned inertial mass damper of claim 4, wherein: the convex plates are arranged on the front face and the rear face of the mass block in the viscous damping liquid respectively and used for stirring the viscous damping liquid by the convex plates to consume energy when the gear drives the mass block to rotate.
6. The rack and pinion tuned inertial mass damper according to any of claims 1-5, wherein: the spring element comprises a spring, a guide rod, a first spring top plate and a second spring top plate, two ends of the guide rod are fixed with the sleeve and the second spring top plate respectively, the first spring top plate is arranged on the guide rod in a sliding mode, and the spring penetrates through the guide rod and is located between the sleeve and the first spring top plate, between the first spring top plate and the second spring top plate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378256.0A CN114562052A (en) | 2022-04-12 | 2022-04-12 | Gear and rack type tuning inertia damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378256.0A CN114562052A (en) | 2022-04-12 | 2022-04-12 | Gear and rack type tuning inertia damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114562052A true CN114562052A (en) | 2022-05-31 |
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ID=81720817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210378256.0A Pending CN114562052A (en) | 2022-04-12 | 2022-04-12 | Gear and rack type tuning inertia damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114562052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220290458A1 (en) * | 2021-03-12 | 2022-09-15 | University Of Cincinnati | Nitinol belleville elastic nonlinear (ni-belle-e-n) structural assembly |
| CN115479102A (en) * | 2022-08-09 | 2022-12-16 | 广州大学 | Upper restraint damping device for converter valve tower |
-
2022
- 2022-04-12 CN CN202210378256.0A patent/CN114562052A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220290458A1 (en) * | 2021-03-12 | 2022-09-15 | University Of Cincinnati | Nitinol belleville elastic nonlinear (ni-belle-e-n) structural assembly |
| CN115479102A (en) * | 2022-08-09 | 2022-12-16 | 广州大学 | Upper restraint damping device for converter valve tower |
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Effective date of registration: 20220704 Address after: 312000 1st floor, No.4 departure building, West Ring Road Science Park, Keqiao District, Shaoxing City, Zhejiang Province Applicant after: ZHEJIANG JIANKE DAMPING SCIENCE & TECHNOLOGY CO.,LTD. Address before: 312000 preparation workshop for seismic technical test of shuguangju and taoliju projects, Qixian street, Keqiao District, Shaoxing City, Zhejiang Province (south side) Applicant before: Zhejiang Xieli Testing Co.,Ltd. |