CN107143189B - Shearing type lead core damper - Google Patents
Shearing type lead core damper Download PDFInfo
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- CN107143189B CN107143189B CN201710589239.0A CN201710589239A CN107143189B CN 107143189 B CN107143189 B CN 107143189B CN 201710589239 A CN201710589239 A CN 201710589239A CN 107143189 B CN107143189 B CN 107143189B
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- ring
- lead core
- sealing plate
- lead
- plate
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to the technical field of lead core dampers, and discloses a shear type lead core damper which comprises a lead core, wherein the lead core is cylindrical, a plurality of inner rings are axially and stably sleeved on the outer circumference of the lead core, each inner ring comprises a vertical ring part, an upper ring part and a lower ring part, an outer ring groove is formed on the outer circumference of each inner ring, a middle ring consisting of two semi-rings is clamped on the outer side of each inner ring, the two semi-rings are fixedly connected together, each middle ring comprises a bottom part, an upper part and a lower part, and an inner ring groove is formed on the inner circumference of each middle ring; the adjacent upper ring part and the lower ring part are clamped in the same inner ring groove and have a gap with the bottom surface of the inner ring groove, and the adjacent upper part and the lower part are clamped in the same outer ring groove and have a gap with the bottom surface of the outer ring groove; the top middle ring is connected with the upper mounting surface, and the bottom middle ring is connected with the lower mounting surface. The invention has simple structure and convenient installation, can realize circumferential shear damping, avoids lead core bending and occupies small space.
Description
Technical Field
The invention relates to the technical field of lead core dampers, in particular to a shear type lead core damper.
Background
Lead is used in the method on the attenuator as plastic damping material many, generally adopts shear type or extrusion formula lead core damping, and traditional shear type lead core damping is mostly the plate damper, utilizes the recrystallization property of lead after plastic deformation promptly, extrudees or promotes the protruding part on the stereotype and slides along the stereotype surface to realize the damping effect, this just will remove the stereotype itself and need very long in the direction of shearing displacement, so this kind of attenuator can only be used under the condition that the board both ends are drawn.
The other design using the lead shearing damping performance is a lead rubber support, a lead in the lead rubber support is a cylinder, when the rubber support is deformed by a horizontal force, the lead is horizontally sheared and deformed under the extrusion action of surrounding steel plates and rubber, so that the damping performance is provided for the lead rubber support, the space occupied by the rubber support around the damper is large, the lead in the rubber support cannot independently realize shearing deformation, after two ends of a cylindrical lead rod are fixed, the upper surface and the lower surface horizontally displace, the upper surface and the lower surface of the lead rod return to generate shearing movement, but the central position of the lead rod is bent and deformed, and the damping performance of the lead rod is greatly reduced.
In some supports or building support systems, like spherical steel support, rubber pot support etc. do not have the position to set up the lead core in the support, will utilize plumbous shear damping ability, can only set up alone beside the support or the outside, but can't realize shear deformation when the direct exclusive use of lead rod, in test process, even the outside has wrapped up the metal protection layer, also can take place to bend or the tip breaks, can't provide effectual damping.
Therefore, a damper which can realize circumferential shear damping and avoid lead bending and occupies a small space is needed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems, the shear type lead core damper is simple in structure, convenient to install, capable of achieving circumferential shear damping, capable of avoiding lead core bending and small in occupied space.
The technical scheme adopted by the invention is as follows: a shear type lead core damper comprises a lead core, wherein the lead core is cylindrical, a plurality of inner rings are axially and stably sleeved on the outer circumference of the lead core, each inner ring comprises a vertical ring part, an upper ring part and a lower ring part, an outer ring groove is formed in the outer circumference of each inner ring, a middle ring formed by two semi-rings is clamped on the outer side of each inner ring, the two semi-rings are fixedly connected together, each middle ring comprises a bottom part, an upper part and a lower part, and an inner ring groove is formed in the inner circumference of each middle ring; the adjacent upper ring part and the lower ring part are clamped in the same inner ring groove and have a gap with the bottom surface of the inner ring groove, and the adjacent upper part and the lower part are clamped in the same outer ring groove and have a gap with the bottom surface of the outer ring groove; the top middle ring is connected with the upper mounting surface, and the bottom middle ring is connected with the lower mounting surface.
The invention relates to a shearing type lead core damper, which also comprises a sealing plate, a top plate and a bottom plate, wherein a top middle ring is connected with an upper mounting surface through the sealing plate and the top plate, and a bottom middle ring is connected with a lower mounting surface through the bottom plate; the sealing plate is in a circular truncated cone shape, the bottom of the sealing plate is provided with a sealing plate circular disc, the sealing plate circular disc and the upper ring part of the top layer are clamped in the same inner annular groove, the top plate is in a flange shape, the middle part of the top plate is provided with a circular hole, and the upper part of the circular truncated cone-shaped sealing plate is arranged in the circular hole; a bottom plate disc is arranged at the upper part of the bottom plate, and the bottom plate disc and the lower ring part at the bottom end are clamped in the same inner ring groove; the top surface and the bottom surface of the lead core are respectively sealed by the bottom surface of the sealing plate and the top surface of the bottom plate.
According to the shear type lead core damper, the outer ring is sleeved on the outer circumference of the middle ring, namely the outer ring fixedly connects the two half rings together, and the inner diameter of the outer ring is the same as the outer diameter of the middle ring.
According to the shear type lead core damper, the radial convex part is arranged at the bottom of the outer circumference of the middle ring, and the convex part is in contact with the bottom surface of the outer ring so as to position the outer ring.
According to the shear type lead core damper, the convex part extends along the circumferential direction of the bottom of the outer circumference of the outer ring to form an annular step, and the whole bottom surface of the outer ring is in contact with the step surface of the convex part.
According to the shear type lead core damper, the outer surface of a lead core is coated with rubber or high-strength wear-resistant fibers.
According to the shear type lead core damper, a gap is formed between the top end of the circular truncated cone-shaped sealing plate and the top end of the circular hole, and a gap is formed between the outer circumferential surface of the upper portion of the circular truncated cone-shaped sealing plate and the inner side of the circular hole.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the damping device has the advantages of simple structure, convenience in installation, capability of realizing circumferential shear deformation damping, avoidance of lead core bending, small occupied space and long service life; the multi-layer shearing deformation is carried out on the cross section of the cylindrical lead core, the displacement of the shearing deformation is in direct proportion to the height of the lead core, so the space occupied in the shearing direction is very small, and the displacement in the general shearing direction can reach more than 2 times of the space occupied.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 taken at I;
FIG. 4 is an enlarged view of a portion of FIG. 2 at II;
FIG. 5 is a front view of the inner ring of the present invention;
FIG. 6 isbase:Sub>A sectional view taken along line A-A of FIG. 5;
FIG. 7 is a top view of the middle ring of the present invention;
fig. 8 is a sectional view taken along line B-B in fig. 7.
Reference numerals: 1 is a lead core, 2 is an inner ring, 2-1 is a vertical ring part, 2-2 is an upper ring part, 2-3 is a lower ring part, 2-4 is an outer ring groove, 3 is a middle ring, 3-1 is a bottom part, 3-2 is an upper part, 3-3 is a lower part, 3-4 is an inner ring groove, 3-5 is a convex part, 4 is a sealing plate, 4-1 is a sealing plate disc, 5 is a top plate, 5-1 is a circular hole, 6 is a bottom plate, 6-1 is a bottom plate disc, and 7 is an outer ring.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 8, a shear type lead core damper includes a lead core, a sealing plate, a top plate and a bottom plate, the lead core is cylindrical, a plurality of inner rings are axially and stably sleeved on the outer circumference of the lead core, the outer surface of the lead core is coated with rubber or high-strength wear-resistant fiber to be used as a protective layer, the inner sides of the inner rings can be directly contacted with the outer side of the protective layer, or a certain assembly gap can be reserved, the assembly gap is between 0.1mm and 3mm, the inner sides of the inner rings are designed to be directly contacted and mounted with the outer side of the lead core coated with the protective layer, the coating of the rubber or the high-strength wear-resistant fiber can prevent the lead core from being extruded and leaked from gaps of the ring structure in the shearing deformation process, the integrity of the lead core is ensured, and the service life of the damper is prolonged; the inner ring comprises a vertical ring part, an upper ring part and a lower ring part which are all in a ring shape, an outer ring groove is formed in the outer circumference of the inner ring, the outer ring groove is a ring groove extending along the outer circumference of the inner ring, a middle ring consisting of two half rings is clamped on the outer side of the inner ring, the two half rings are fixedly connected together, the middle ring comprises a bottom part, an upper part and a lower part and is in a ring shape, an inner ring groove is formed in the inner circumference of the middle ring, the inner ring groove is a ring groove extending along the inner circumference of the middle ring, an outer ring is sleeved on the outer circumference of the middle ring, namely the two half rings are fixedly connected together by the outer ring and fixed into a complete ring-shaped middle ring, the inner diameter of the outer ring is the same as the outer diameter of the middle ring, a radial convex part is arranged at the bottom of the outer circumference of the middle ring, the convex part is in contact with the bottom surface of the outer ring so as to position the outer ring, and can prevent the middle ring from moving up and down when a lead core is sheared and deformed so as to cause the damper to be blocked, the convex part extends along the bottom circumference of the outer ring to form a ring step, and the whole bottom surface of the convex part is in contact with the outer ring, so that the outer ring is more stably arranged on the middle ring; the adjacent upper ring part and the lower ring part are clamped in the same inner ring groove, a gap is formed between the adjacent upper ring part and the lower ring part and the bottom surface of the inner ring groove, the adjacent upper part and the adjacent lower part are clamped in the same outer ring groove, a gap is formed between the adjacent upper ring part and the bottom surface of the outer ring groove, and the reservation of the gap can enable each layer of ring structure to be capable of transversely displacing, so that the shearing deformation of the lead core is ensured; the top middle rings are connected with an upper mounting surface (not shown in the figure), and the bottom middle rings are connected with a lower mounting surface (not shown in the figure).
The top middle ring is connected with an upper mounting surface (not shown in the figure) through a sealing plate and a top plate, the bottom middle ring is connected with a lower mounting surface (not shown in the figure) through a bottom plate, the top plate is connected with the upper mounting surface through bolts, and the bottom plate is connected with the lower mounting surface through bolts; the sealing plate is in a circular truncated cone shape, the bottom of the sealing plate is provided with a sealing plate circular plate, the sealing plate circular plate and the upper ring part of the top layer are clamped in the same inner annular groove, the bottom surface of the sealing plate is attached to the top surface of the lead core, the top plate is in a flange shape, the middle of the top plate is provided with a circular hole, and the upper part of the circular truncated cone-shaped sealing plate is arranged in the circular hole; bottom plate upper portion has the bottom plate disc, the lower ring portion block of bottom plate disc and bottom is in same inner ring groove, and bottom plate top surface and lead core bottom surface laminating make lead core top surface and bottom surface are sealed by shrouding bottom surface and bottom plate top surface respectively, round platform shape shrouding top has the clearance with the round hole top, the outer periphery in round platform shape shrouding upper portion has the clearance with the round hole inboard, can adapt to the attenuator about well apart from the change between the mounting plane and the contained angle change, adapt to changeable installation environment.
In the working process, a top plate and a bottom plate of the damper are fixedly connected with an upper mounting surface and a lower mounting surface respectively through bolts, when the upper mounting surface is displaced in the radial direction of the damper, the top plate is displaced in the radial direction, because the adjacent upper ring part and the lower ring part are clamped in the same inner ring groove and have a gap with the bottom surface of the inner ring groove, the adjacent upper part and the lower part are clamped in the same outer ring groove and have a gap with the bottom surface of the outer ring groove, the top plate can drive the sealing plate to move in the radial direction, the sealing plate drives the top layer middle ring to move in the radial direction, the top layer middle ring drives the top layer inner ring to move in the radial direction, and the top layer inner ring drives the lower layer middle ring to move in the radial direction, because the multilayer ring structures are sleeved layer by layer, the radial movement of each layer is transmitted from top to bottom, the radial movement of the whole layer structure is transmitted to the lead core through the inner ring, so that the lead core is sheared and deformed from top to bottom, and further the shearing damping effect is realized; vice versa, the radial movement of the lower mounting surface can enable the bottom plate to move radially, the radial movement of the bottom plate can be transmitted to the bottom middle ring and is sequentially transmitted upwards step by step, the shearing deformation of the lead core is realized, and the shearing damping effect is further realized.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.
Claims (7)
1. A shear type lead core damper comprises a lead core (1), and is characterized in that: the pencil lead is characterized in that the pencil lead (1) is cylindrical, a plurality of inner rings (2) are axially and stably sleeved on the outer circumference of the pencil lead (1), each inner ring (2) comprises a vertical ring part (2-1), an upper ring part (2-2) and a lower ring part (2-3), an outer ring groove (2-4) is formed in the outer circumference of each inner ring (2), a middle ring (3) formed by two semi-rings is clamped on the outer side of each inner ring (2), the two semi-rings are fixedly connected together, each middle ring (3) comprises a bottom part (3-1), an upper part (3-2) and a lower part (3-3), and an inner ring groove (3-4) is formed in the inner circumference of each middle ring (3); the adjacent upper ring part (2-2) and the lower ring part (2-3) are clamped in the same inner ring groove (3-4) and have a gap with the bottom surface of the inner ring groove (3-4), and the adjacent upper part (3-2) and the lower part (3-3) are clamped in the same outer ring groove (2-4) and have a gap with the bottom surface of the outer ring groove (2-4); the top middle ring (3) is connected with the upper mounting surface, and the bottom middle ring (3) is connected with the lower mounting surface.
2. A shear lead damper as in claim 1, wherein: the damper also comprises a sealing plate (4), a top plate (5) and a bottom plate (6), wherein the top middle ring (3) is connected with the upper mounting surface through the sealing plate (4) and the top plate (5), and the bottom middle ring (3) is connected with the lower mounting surface through the bottom plate (6); the sealing plate (4) is in a circular truncated cone shape, the bottom of the sealing plate is provided with a sealing plate disc (4-1), the sealing plate disc (4-1) and the upper ring part (2-2) of the top layer are clamped in the same inner annular groove (3-4), the top plate (5) is in a flange shape, the middle part of the top plate is provided with a circular hole (5-1), and the upper part of the circular truncated cone-shaped sealing plate is arranged in the circular hole (5-1); a bottom plate disc (6-1) is arranged at the upper part of the bottom plate (6), and the bottom plate disc (6-1) and a lower ring part (2-3) at the bottom end are clamped in the same inner ring groove (3-4); the top surface and the bottom surface of the lead core (1) are respectively sealed by the bottom surface of the sealing plate (4) and the top surface of the bottom plate (6).
3. A shear lead damper as in claim 2, wherein: the outer circumference of the middle ring (3) is sleeved with an outer ring (7), namely the outer ring (7) fixedly connects the two half rings together, and the inner diameter of the outer ring (7) is the same as the outer diameter of the middle ring (3).
4. A shear lead damper as in claim 3 wherein: the bottom of the outer circumference of the middle ring (3) is provided with radial protrusions (3-5), and the protrusions (3-5) are in contact with the bottom surface of the outer ring (7) so as to position the outer ring (7).
5. A shear lead damper as in claim 4, wherein: the convex parts (3-5) extend along the circumferential direction of the bottom of the outer circumference of the outer ring to form an annular step, and the whole bottom surface of the outer ring (7) is contacted with the step surface of the convex parts (3-5).
6. A shear lead damper as in claim 5, wherein: the outer surface of the lead core (1) is coated with rubber or high-strength wear-resistant fiber.
7. A shear lead damper as in claim 6, wherein: the top end of the circular truncated cone-shaped sealing plate is provided with a gap with the top end of the round hole (5-1), and the outer circumferential surface of the upper part of the circular truncated cone-shaped sealing plate is provided with a gap with the inner side of the round hole (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589239.0A CN107143189B (en) | 2017-07-19 | 2017-07-19 | Shearing type lead core damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589239.0A CN107143189B (en) | 2017-07-19 | 2017-07-19 | Shearing type lead core damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107143189A CN107143189A (en) | 2017-09-08 |
| CN107143189B true CN107143189B (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589239.0A Active CN107143189B (en) | 2017-07-19 | 2017-07-19 | Shearing type lead core damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN107143189B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ245378A (en) * | 1992-12-04 | 1997-04-24 | Damping Systems Ltd Substitute | Bearing with plastically deformable core and surround which hydrostatically pressures the material of the core at or beyond its shear yield stress and methods of making |
| CN1081301C (en) * | 1994-03-07 | 2002-03-20 | 工业研究有限公司 | Energy absorbers and methods of manufacture |
| EP1156297A1 (en) * | 2000-05-15 | 2001-11-21 | SM Schweizerische Munitionsunternehmung AG | Expanding bullet and process for manufacturing same |
| CN101793004B (en) * | 2010-02-26 | 2011-10-26 | 成都市新筑路桥机械股份有限公司 | Seismic isolation and reduction structure of bridge |
| CN101949176A (en) * | 2010-09-14 | 2011-01-19 | 广州大学 | Steel-lead damper |
| CN205804661U (en) * | 2016-05-28 | 2016-12-14 | 广州大学 | Girder truss and the energy dissipating attachment structure of external surrounding frame trestle in framework core wall structure |
| CN207017736U (en) * | 2017-07-19 | 2018-02-16 | 成都市新筑路桥机械股份有限公司 | A kind of shearing lead for retractable pencil damper |
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2017
- 2017-07-19 CN CN201710589239.0A patent/CN107143189B/en active Active
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| CN107143189A (en) | 2017-09-08 |
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Effective date of registration: 20230116 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Applicant after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Sichuan, Chengdu Applicant before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |
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