CN111691561B - A tensile and compressive strong metal energy dissipation self-resetting damper and its installation and use method - Google Patents
A tensile and compressive strong metal energy dissipation self-resetting damper and its installation and use method Download PDFInfo
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- CN111691561B CN111691561B CN202010445561.8A CN202010445561A CN111691561B CN 111691561 B CN111691561 B CN 111691561B CN 202010445561 A CN202010445561 A CN 202010445561A CN 111691561 B CN111691561 B CN 111691561B
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
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- Electromagnetism (AREA)
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Abstract
本发明属于土木工程技术领域，具体涉及一种拉压等强型金属耗能自复位阻尼器及其安装使用方法，包括缸体、导向杆、第一金属波纹管、蝶形弹簧组、压力传感器和第二金属波纹管，导向杆上分别连接第一金属波纹管、蝶形弹簧组、压力传感器和第二金属波纹管，导向杆通过第一连接板、第一限位板、第一连接螺栓和第三连接螺栓与缸体连接，缸体和导向杆上分别设有第一耳板和第二耳板，第一耳板和第二耳板分别连接在建筑结构受力处。可应用于建筑与桥梁结构的减震控制以及地震后结构使用功能快速恢复等领域，利用金属波纹管进行耗能，金属波纹管耗能能力稳定，耗能机理明确，受压时不存在平面外失稳的问题，在土木工程领域中具有较好的应用前景。
The present invention belongs to the field of civil engineering technology, and specifically relates to a tension and compression type strong metal energy dissipation self-resetting damper and its installation and use method, including a cylinder body, a guide rod, a first metal bellows, a butterfly spring group, a pressure sensor and a second metal bellows, the guide rod is respectively connected to the first metal bellows, the butterfly spring group, the pressure sensor and the second metal bellows, the guide rod is connected to the cylinder body through a first connecting plate, a first limit plate, a first connecting bolt and a third connecting bolt, the cylinder body and the guide rod are respectively provided with a first ear plate and a second ear plate, the first ear plate and the second ear plate are respectively connected to the stress position of the building structure. It can be applied to the fields of shock absorption control of buildings and bridge structures and rapid recovery of structural use functions after earthquakes, and uses metal bellows for energy dissipation. The metal bellows has a stable energy dissipation capacity and a clear energy dissipation mechanism. There is no problem of out-of-plane instability when under pressure, and it has good application prospects in the field of civil engineering.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a tension-compression equal-strength metal energy consumption self-resetting damper and an installation and use method thereof, which can be applied to the fields of shock absorption control of building and bridge structures, rapid recovery of structure use functions after earthquake and the like.
Background
The recoverable functional structure adopts a new anti-seismic design concept, and the structure can quickly recover the use function after earthquake on the premise of protecting life, so that economic loss caused by the earthquake and influence on normal life and production of people are reduced. The structure system is characterized in that the use function of the structure system can be recovered without repair after earthquake or after repair in partial use state, thus the structure system is easy to build and maintain and has high cost-effectiveness in whole service life. The self-resetting energy consumption damper can be used as a basic component to be applied to recoverable functional structures such as a swinging structure, a self-resetting structure, a replaceable component (part) structure, a composite self-resetting structure and the like. The damper is characterized in that the structure can provide restoring force for the structure to restore to the initial position under the action of wind load, earthquake and other vibration load, and can reduce or even eliminate the residual deformation of the structure while consuming energy, thereby reducing the time and cost required by repairing the structure, and having wide application prospect.
The self-resetting function of the existing self-resetting energy-consuming damper is mainly realized by prestressed reinforcement, shape memory alloy, springs and the like. The prestress steel bar has smaller elastic deformation range, uses an elastic stage to perform self-reset, generally hardly meets the requirement of interlayer displacement of a frame structure, has the shape memory alloy capable of providing a self-reset function, but has the performance influenced by temperature, and can be restored to a state before deformation by heating after deformation, so that the feasibility of the material in practical engineering application is reduced, and the spring is a good elastic element and can provide restoring force for restoring to an initial balance position no matter being pressed or pulled, so that the self-reset function is realized, but has better performance in a reduced scale model experiment due to the smaller restoring force provided by the spring, but hardly restores the structure to the initial position in practical engineering, so that practical application is limited.
The energy consumption principle of the self-resetting energy consumption damper is mainly realized at present by friction energy consumption, energy consumption by utilizing metal elements (X-shaped, U-shaped and the like) with different shapes or performing hole opening and the like on the metal elements to enable the metal elements to yield and deform, and the like. The principle of the method based on friction energy consumption is clear, the structure of the damper is relatively simple, but under the action of reciprocating load, the friction interface becomes smooth gradually, and the friction coefficient changes, so that the friction force is reduced, the energy consumption capability is unstable, and the reliability in long-term use is reduced. The damper manufactured by the method has asymmetric tension and compression, and the earthquake action belongs to reciprocating random load, so that the damper is required to show the same characteristic under the tension and compression action. The method for dissipating energy by using the magnetorheological fluid requires a specific control path to obtain a control force by controlling the change of current to provide a changed magnetic field, and in addition, the magnetorheological damper has relatively complex structure, and the use of the magnetorheological fluid causes the problems of difficult sealing of energy dissipating elements, easy leakage of fluid and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the metal energy consumption self-resetting damper which has the advantages of strong pulling and pressing force and the like, high restoring force, stable energy consumption capability, convenient replacement, no temperature influence, low cost and relatively simple structure.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a draw and press equal strong type metal power consumption from attenuator that resets, including cylinder body, guide bar, first metal bellows, belleville spring group, pressure sensor and second metal bellows, connect first metal bellows, belleville spring group, pressure sensor and second metal bellows on the guide bar respectively, the guide bar passes through first connecting plate, first limiting plate, first connecting bolt and third connecting bolt are connected with the cylinder body, be equipped with first otic placode and second otic placode on cylinder body and the guide bar respectively, first otic placode and second otic placode connect respectively building structure atress department.
The guide rod end is provided with an end threaded connection part, the threaded connection part of the guide rod end is respectively connected with a limit nut and a connecting joint, and the connecting joint is provided with a second lug plate and a second round hole.
Two sets of shaft side threaded connection parts are arranged on the middle end of the guide rod, the two sets of threaded connection parts of the middle end are respectively connected with pressure conduction nuts, the guide rod is sleeved with a belleville spring set, a pressure sensor and a second limiting plate, and the pressure conduction nuts fix the belleville spring set and the pressure sensor by pressing the second limiting plate.
The second limiting plate outside sets up first limiting plate, and first limiting plate, second limiting plate, fixed belleville spring group and pressure sensor are connected into an organic wholely through pre-compaction installation screw rod and nut pre-compaction, and the nut adjusts belleville spring group precompression and pre-compaction position, and first limiting plate is fixed with the pipe wall of cylinder body through third connecting bolt.
The left side sealing plate and the right side sealing plate of the cylinder body are connected with the wall of the cylinder body along the axial direction of the cylinder body through fourth connecting bolts, a round hole with the same diameter as that of the guide rod is formed in the middle of the right side sealing plate, and the guide rod enters the inside of the cylinder body through the round hole.
Two rows of first limit adjusting holes and second limit adjusting holes are uniformly formed in the wall of the cylinder body along the radial direction, the first limit adjusting holes are used for being connected with a first connecting plate and located at the end position of the cylinder body, and the second limit adjusting holes are used for being connected with a first limit plate and located at the middle position of the cylinder body.
Rectangular grooves are formed in the guide rods and matched with the first protrusions on the first connecting plates and the second protrusions on the second limiting plates, the rectangular grooves are used for positioning the first connecting plates and the first limiting plates, the second bolt holes on the first connecting plates are aligned with the first limiting adjusting holes, and then the cylinder body is fixedly connected with the first connecting plates through the first connecting bolts.
The middle part of first metal bellows and second metal bellows is the ripple section, and both ends end position is straight section, and straight section is connected with cylinder body and guide bar respectively, and first metal bellows and second metal bellows crest and trough are U-shaped, and its one end and second connecting plate fixed connection, and its other end is equipped with the wedge mouth, and the wedge mouth passes through the fastener and is connected with the guide bar.
The belleville spring set and the pressure sensor penetrate through the guide rod and are located between the second limiting plates, the pressure sensor is arranged in the middle or on two sides of the belleville spring set and used for detecting the precompression of the belleville spring set, the fastening piece is a circular metal piece with an opening, first bolt holes are formed in the upper portion and the lower portion of one side of the opening of the fastening piece respectively, and the first metal corrugated pipe or the second metal corrugated pipe is fixed with the guide rod together through a fifth connecting bolt on one side of the opening of the fastening piece.
The first connecting plate, the second connecting plate, the first limiting plate and the second limiting plate are in circular ring shapes, the outer diameters of the first connecting plate and the first limiting plate are smaller than the inner diameter of the cylinder body by 1mm-2mm, the first connecting bolt, the second connecting bolt and the third connecting bolt adopt friction type 8.8 grade or 10.9 grade, and the specifications M12, M16, M20, M22, M24, M27, M30 and M36 are the same.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention introduces the metal corrugated pipe to consume energy, the energy consumption capacity can be adjusted by changing the corrugated quantity, the rigidity can be combined in series and parallel according to the requirement or adjusted by changing the thickness of the metal corrugated pipe, and the invention is suitable for the condition with larger rigidity requirement in civil engineering. The metal corrugated pipe has stable energy consumption capability, definite energy consumption mechanism, no out-of-plane instability problem when being pressed, and good application prospect in the civil engineering field.
(2) In the invention, a pair of metal corrugated pipes with the same parameters are arranged at two sides of the belleville spring group, when the damper is pressed, the left first metal corrugated pipe is pressed, the right second metal corrugated pipe is pulled, and when the damper is pulled, the conditions are just opposite. However, no matter the damper is in a pressed or pulled state, the resultant force of the first metal corrugated pipe and the second metal corrugated pipe is always the same, so that the problem that the tension and the compression of the metal damper are not equal in the prior art is effectively solved.
(3) The invention utilizes the characteristics that the belleville springs can be flexibly arranged according to rigidity requirements, such as superposition combination, involution combination or composite combination, and the like, and the combined belleville spring group has small deformation, high bearing capacity and high rigidity, and can provide larger restoring force, so that the belleville spring can be used in actual engineering in the field of civil engineering rather than only model experiments, wherein the single belleville spring can provide rigidity of about 40kN/mm, and the belleville spring can be flexibly combined and adjusted according to working conditions.
(4) The tension-compression equal-strength metal energy consumption self-resetting damping device has good fatigue resistance, relatively simple structure, low cost, convenient replacement, flexible use and strong applicability, is particularly suitable for a recoverable functional structure, can effectively reduce residual displacement after the structure is in a vibration state, reduces time and cost required by structural repair, is also suitable for quick construction of an assembled building structure, and has good market popularization and application prospects.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a three-dimensional schematic of a damper of the present invention;
FIG. 4 is a left side view of the present invention;
FIG. 5 is a right side view of the present invention;
FIG. 6 is a cross-sectional view 1-1 of the present invention;
FIG. 7 is a2-2 cross-sectional view of the present invention;
FIG. 8 is a three-dimensional schematic of a fastener of the present invention;
FIG. 9 is a three-dimensional schematic view of a first web of the present invention;
FIG. 10 is a three-dimensional schematic view of a second web of the present invention;
FIG. 11 is a three-dimensional schematic view of a first limiting plate according to the present invention;
FIG. 12 is a three-dimensional schematic view of a second limiting plate of the present invention;
fig. 13 is a three-dimensional schematic view of a first metal bellows of the present invention.
The reference number of the device comprises a cylinder body, a left sealing plate, a right sealing plate, a 103-fourth connecting bolt, a 104-first lug plate, a 105-first limit adjusting hole, a 106-second limit adjusting hole, a 107-first round hole, a 2-guide rod, a 201-groove, a 202-connecting joint, a 203-second lug plate, a 204-second round hole, a 205-end threaded connection, a 206-shaft side threaded connection, a 3-first metal corrugated pipe, a 301-wedge-shaped notch, a 4-butterfly spring group, a 5-pressure sensor, a 6-second metal corrugated pipe, a 7-first connecting plate, a 701-second bolt hole, a 702-first through hole, a 703-first bulge, a 8-second connecting plate, a 801-second through hole, a 9-first limit plate, a 901-third through hole, a 902-third bolt hole, a 10-second limit plate, a 1001-second bulge, a 11-pressure conducting nut, a 12-fastener, a 1201-first bolt hole, a 1202-fifth connecting bolt, a 13-mounting screw, a 14-second limit nut, a 15-second limit nut and a 17-third connecting bolt.
Detailed Description
The utility model provides a draw and press equal strong type metal power consumption from damper that resets, including cylinder body 1, guide bar 2, first metal bellows 3, belleville spring group 4, pressure sensor 5 and second metal bellows 6, connect first metal bellows 3, belleville spring group 4, pressure sensor 5 and second metal bellows 6 on the guide bar 2 respectively, guide bar 2 is connected with cylinder body 1 through first connecting plate 7, first limiting plate 9, first connecting bolt 15 and third connecting bolt 17, be equipped with first otic placode 104 and second otic placode 203 on cylinder body 1 and the guide bar 2 respectively, first otic placode 104 and second otic placode 203 connect respectively in building structure atress department.
An end threaded connection 205 is arranged on the end of the guide rod 2, the threaded connection of the end of the guide rod 2 is respectively connected with the limit nut 14 and the connecting joint 202, and the connecting joint 202 is provided with a second lug plate 203 and a second round hole 204. Two sets of shaft side threaded connection parts 206 are arranged at the middle end of the guide rod 2, the two sets of threaded connection parts at the middle end are respectively connected with the pressure conduction nuts 11, the butterfly spring set 4, the pressure sensor 5 and the second limiting plate 10 are sleeved on the guide rod 2, and the pressure conduction nuts 11 fix the butterfly spring set 4 and the pressure sensor 5 by pressing the second limiting plate 10.
The first limiting plate 9 is arranged on the outer side of the second limiting plate 10, the first limiting plate 9, the second limiting plate 10, the fixed belleville spring set 4 and the pressure sensor 5 are connected into a whole through the prepressing installation screw 13 and the nut in a prepressing mode, the fixed mounting of the belleville spring set 4 on the pipe wall of the cylinder body 1 is facilitated, and meanwhile compression deformation of the belleville spring set 4 is guaranteed, so that restoring force is provided. The pressure conducting nut 11 not only plays a role of applying pre-compression force, but also ensures that the butterfly spring set 4 can be compressed and deformed no matter the damper is subjected to pressure load or tensile load. The nut adjusts the precompression and the precompression position of the belleville spring group 4, and the first limiting plate 9 is fixed with the pipe wall of the cylinder body 1 through a third connecting bolt 17.
The left side sealing plate 101 and the right side sealing plate 102 of the cylinder body are connected with the wall of the cylinder body 1 along the axial direction of the cylinder body 1 through fourth connecting bolts 103. The middle part of the right side sealing plate 102 is provided with a round hole with the same diameter as the guide rod 2, and the guide rod 2 enters the cylinder body 1 through the round hole. Two rows of first limit adjusting holes 105 and second limit adjusting holes 106 are uniformly formed in the pipe wall of the cylinder body 1 along the radial direction, the first limit adjusting holes 105 are used for fixing the first connecting plates 7 and located at positions, close to two ends, of the cylinder body 1, and the second limit adjusting holes 106 are used for fixing the first limit plates 9 and located at positions, close to the middle, of the cylinder body 1. Rectangular grooves 201 are formed in the guide rods 2, the rectangular grooves 201 are matched with first protrusions 703 on the first connecting plates 7 and second protrusions 1001 on the second limiting plates 10, and are used for directly positioning the first connecting plates 7 and indirectly positioning the first limiting plates 9, second bolt holes 701 on the first connecting plates 7 are aligned with the first limiting adjustment holes 105, and then the cylinder body 1 is fixedly connected with the first connecting plates 7 through first connecting bolts 15. The middle parts of the first metal corrugated pipe 3 and the second metal corrugated pipe 6 are corrugated sections, the two end parts are flat sections, the flat sections are respectively connected with the cylinder body 1 and the guide rod 2, the wave crests and the wave troughs of the first metal corrugated pipe 3 and the second metal corrugated pipe 6 are U-shaped, one ends of the first metal corrugated pipe are fixedly connected with the second connecting plate 8 and the second through holes 801, the right ends of the first metal corrugated pipe are provided with wedge-shaped openings 301, and the first metal corrugated pipe is connected with the guide rod 2 through fasteners 12. The belleville spring set 4 and the pressure sensor 5 penetrate through the guide rod 2 and are located between the second limiting plates 10, the pressure sensor 5 is arranged in the middle or on two sides of the belleville spring set 4 and used for detecting precompression when the belleville spring set 4 is prepressed, the belleville spring set 4 is prepressed through the pressure conducting nut 11, the fastening piece 12 is a circular metal member with an opening, the upper and lower parts on one side of the opening of the fastening piece 12 are respectively provided with the first bolt hole 1201, and the upper and lower parts on one side of the opening of the fastening piece 12 are used for fixing the first metal bellows 3 or the second metal bellows 6 with the guide rod 2 through the fifth connecting bolt 1202. the first connecting plate 7, the second connecting plate 8, The first limiting plate 9 and the second limiting plate 10 are in a circular ring shape, the outer diameters of the first connecting plate 7 and the first limiting plate 9 are smaller than the inner diameter of the cylinder body 1 by 1mm-2mm, the first connecting plate 7 and the second limiting plate 10 are respectively provided with a first bulge 703 and a second bulge 1001 for assisting in positioning the second bolt hole 701 and the third bolt hole 902, the outer sides of the first metal corrugated tube 3 and the second metal corrugated tube 6 are welded with the second connecting plate 8 and then are fixed on the pipe wall of the cylinder body 1 through the second connecting bolt 16 and the first connecting bolt 15, the first limiting plate 9 is fixed on the pipe wall of the cylinder body 1 through the third connecting bolt 17 and the second limiting plate 10 with the inner diameter slightly larger than the first connecting bolt 15, the first connecting bolt 15 can jointly ensure that the precompression of the butterfly spring group 4 is not relaxed, The second connecting bolt 16 and the third connecting bolt 17 adopt friction type 8.8 grade or 10.9 grade, and the specifications of M12, M16, M20, M22, M24, M27, M30 and M36 are adopted.
A mounting and using method of a tension-compression equal-strength metal energy consumption self-resetting damper,
A. component mounting
The guide rod 2 is sleeved with a first metal corrugated pipe 3, a belleville spring set 4, a pressure sensor 5 and a second metal corrugated pipe 6;
B. pre-pressing installation
The first limiting plate 9, the second limiting plate 10, the fixed belleville spring set 4 and the pressure sensor 5 are connected into a whole through a prepressing installation screw 13, a third through hole 901 and a nut in prepressing mode, the nut adjusts the prepressing force and the prepressing position of the belleville spring set 4, and the first limiting plate 9 is fixed with the pipe wall of the cylinder body 1 through a third connecting bolt 17;
C. Applying a pre-compression force
After the first limiting plate 9 is fixed with the pipe wall of the cylinder body 1 through the third connecting bolt 17, the nut on the pre-pressing installation screw 13 is loosened, so that the belleville spring set 4 can be compressed and deformed, and accordingly restoring force is provided, the position of the pressure conduction nut 11 on the guide rod 2 is changed through the shaft side threaded connection part 206, and pre-pressing force is further applied;
D. Combined assembly
The first metal corrugated pipe 3 and the second metal corrugated pipe 6 are connected with the guide rod 2 through the fastener 12, the guide rod 2 is connected with the cylinder body 1 through the first connecting plate 7, the first limiting plate 9, the first connecting bolt 15 and the third connecting bolt 17, the left side sealing plate 101 and the right side sealing plate 102 are respectively connected to the two sides of the cylinder body 1, the first lug plate 104 and the second lug plate 203 are respectively connected to the guide rod 2, and the first lug plate 104 and the second lug plate 203 are respectively connected to stress positions of the building structure.
The invention is further described below with reference to the technical scheme and the attached drawings.
As shown in figures 1-7, the tension-compression equal-strength metal energy consumption self-resetting damper comprises a cylinder body 1, a guide rod 2, a first metal corrugated pipe 3,
The device comprises a belleville spring set 4, a pressure sensor 5, a second metal bellows 6, a first connecting plate 7, a second connecting plate 8, a first limiting plate 9, a second limiting plate 10, a pressure conduction nut 11, a fastener 12, a pre-pressing mounting screw 13, a limiting nut 14, a first connecting bolt 15, a second connecting bolt 16 and a third connecting bolt 17. The pressure sensor 5 is a through-core pressure sensor, and is manufactured by Shenzhen Uzhou force technology Co., ltd, and the specific model is an annular hollow type 50T pressure sensor, an annular hollow type 100T pressure sensor, an annular hollow type 200T pressure sensor and an annular hollow type 500T pressure sensor.
As shown in fig. 1, 3 and 6, the section of the cylinder body 1 is in a circular tube shape and is made of common steel. The left cylinder sealing plate 101 and the right cylinder sealing plate 102 are connected with the wall of the cylinder 1 along the axial direction of the cylinder 1 through fourth connecting bolts 103. The middle part of the right side sealing plate 102 is provided with a round hole with the same diameter as the guide rod 2, and the guide rod 2 enters the cylinder body 1 through the round hole. Two rows of first limit adjusting holes 105 and second limit adjusting holes 106 are uniformly formed in the pipe wall of the cylinder body 1 along the radial direction, the first limit adjusting holes 105 are used for fixing the first connecting plates 7 and located at positions, close to two ends, of the cylinder body 1, and the second limit adjusting holes 106 are used for fixing the first limit plates 9 and located at positions, close to the middle, of the cylinder body 1. The left side sealing plate 101 is welded to the first ear plate 104. The first ear plate 104 is provided with a first circular hole 107 for connection to a building structure.
As shown in fig. 3, 7 and 9, the guide rod 2 has a cylindrical shape and is provided with threads at both end positions and at the mounting position of the pressure transmission nut 11. The guide rod 2 is located the inside end department of cylinder body 1 and installs stop nut 14 and open along vertical rectangular groove 201, rectangular groove 201 cooperate with first protruding 703 on the first connecting plate 7 and second protruding 1001 on the second limiting plate 10 for direct positioning first connecting plate 7 and indirect positioning first limiting plate 9, in order to guarantee that the second bolt hole 701 on the first connecting plate 7 aligns with first spacing regulation hole 105, and then through first connecting bolt 15 with cylinder body 1 and first connecting plate 7 fixed connection. The guide rod 2 is provided with a connecting joint 202 at the outer end of the cylinder body 1, a screw hole is formed in the connecting joint 202 and is connected with the guide rod 2 through threads, a second lug plate 203 is welded on the right side of the connecting joint 202, and a second round hole 204 is formed in the second lug plate 203 and is used for being connected with a building structure.
As shown in fig. 6, 8 and 13, the middle parts of the first metal corrugated pipe 3 and the second metal corrugated pipe 6 are corrugated sections, and the two end parts are flat sections respectively used for being connected with the cylinder body 1 and the guide rod 2. The wave crests and wave troughs of the first metal corrugated pipe 3 and the second metal corrugated pipe 6 are U-shaped, the left end of the first metal corrugated pipe is fixedly connected with the second connecting plate 8 and the second through hole 801, the right end of the first metal corrugated pipe is provided with a wedge-shaped opening 301, and the first metal corrugated pipe is connected with the guide rod 2 through a fastener 12.
As shown in fig. 6 and 7, the belleville spring sets 4 may be stacked, combined, or combined according to the stiffness requirements of the actual engineering. The belleville spring set 4 and the pressure sensor 5 both pass through the guide rod 2 and are positioned between the left and right second limiting plates 10, wherein the pressure sensor 5 can be arranged in the middle of the belleville spring set 4 and also can be arranged on two sides of the belleville spring set 4 for detecting the precompression of the belleville spring set 4 during precompression. The belleville spring stack 4 is preloaded by a pressure conducting nut 11. The specific parameters require that the single-piece belleville spring provide stiffness stress of 40kN/mm, the outer diameter is 200mm, the inner diameter is 102mm, the thickness is 9mm, the spring height is 14.6mm, the specification of the single-piece belleville spring can be adjusted according to specific working conditions when the belleville spring set is used in actual engineering in the field of civil engineering, and the belleville spring set is not limited to the technical parameters.
As shown in fig. 6 and 7, the parameters and the connection modes of the second metal bellows 6 are identical to those of the first metal bellows 3, and the second metal bellows are symmetrically arranged at two sides of the belleville spring group 4. Two metal bellows of the same length, the same diameter, the same number of corrugations and the same thickness are used. When the damper is in tension, the first metal bellows 3 is in tension and the second metal bellows 6 is in compression, the situation is just the opposite when the damper is in compression. Under the condition of equal relative displacement, the two are stressed by different pulling force and pressure, but the sum of the pulling force and the pressure is equal, so that the equal strength of the pulling pressure of the damper is ensured.
As shown in fig. 8, the fastening member 12 is a circular ring-shaped metal member with an opening, and first bolt holes 1201 are formed in the upper and lower parts of the opening side of the fastening member 12, respectively, and the upper and lower parts of the opening side of the fastening member 12 fix the first metal bellows 3 or the second metal bellows 6 and the guide rod 2 together by means of fifth connecting bolts 1202.
As shown in fig. 9 to 12, the first connecting plate 7, the second connecting plate 8, the first limiting plate 9 and the second limiting plate 10 are all in a circular ring shape. Wherein, the external diameter of first connecting plate 7 and first limiting plate 9 is 1mm-2mm less than cylinder body 1 internal diameter, convenient assembly. The first connecting plate 7 and the second limiting plate 10 are respectively provided with a first protrusion 703 and a second protrusion 1001 for assisting in positioning the second bolt hole 701 and the third bolt hole 902. The outer sides of the first metal corrugated pipe 3 and the second metal corrugated pipe 6 are welded with the second connecting plate 8, and then are fixed on the pipe wall of the cylinder body 1 with the first connecting plate 7 through the second connecting bolt 16 and the first bolt 15. The first limiting plate 9 is fixed on the pipe wall of the cylinder body 1 through a third connecting bolt 17, and the first limiting plate and the second limiting plate 10 with the inner diameter slightly larger than the first limiting plate together ensure that the precompression of the belleville spring set 4 is not loosened.
As shown in fig. 6 and 7, after the belleville spring set 4 applies pre-compression by tightening the pressure conducting nut 11, the first limiting plates 9 on the left side and the right side of the belleville spring set 4 are fixedly connected by the pre-compression mounting screw 13, so that the pre-compression is not lost. After the first limiting plate 9 is fixed with the pipe wall of the cylinder body 1 through the third connecting bolt 17, the pre-pressing mounting screw 13 is loosened, so that the belleville spring set 4 can be compressed and deformed, and accordingly restoring force is provided. The pressure conducting nut 11 not only plays a role of applying pre-compression force, but also ensures that the butterfly spring set 4 can be compressed and deformed no matter the damper is subjected to pressure load or tensile load.
The section shape of the cylinder body can be rectangular or other section forms, and at the moment, the shapes of the first connecting plate and the first limiting plate also change. The foregoing is a specific embodiment of the present invention, and it is within the scope of the present invention to be construed as modified by other persons skilled in the art based on the technical principle of the present invention, and such modifications are included in the scope of the appended claims and their equivalents.
Claims (8)
1. The utility model provides a draw and press equal strong metal power consumption from damper that resets, a serial communication port includes cylinder body (1), guide bar (2), first metal bellows (3), belleville spring group (4), pressure sensor (5) and second metal bellows (6), connect first metal bellows (3) on guide bar (2) respectively, belleville spring group (4), pressure sensor (5) and second metal bellows (6), guide bar (2) are connected with cylinder body (1) through first connecting plate (7), first limiting plate (9), first connecting bolt (15) and third connecting bolt (17), left side shrouding (101) and right side shrouding (102) are connected respectively to cylinder body (1) both sides, connect first otic placode (104) and second otic placode (203) on guide bar (2) respectively, first otic placode (104) and second otic placode (203) are connected respectively building structure atress department;
Two groups of shaft side threaded joints (206) are arranged at the middle end of the guide rod (2), the two groups of threaded joints (206) at the middle end are respectively connected with a pressure conduction nut (11), the guide rod (2) is sleeved with a belleville spring group (4), a pressure sensor (5) and a second limiting plate (10), and the pressure conduction nut (11) is used for fixing the belleville spring group (4) and the pressure sensor (5) by pressing the second limiting plate (10);
The middle parts of the first metal corrugated pipe (3) and the second metal corrugated pipe (6) are corrugated sections, two end parts are straight sections, the straight sections are respectively connected with the cylinder body (1) and the guide rod (2), the wave crests and the wave troughs of the first metal corrugated pipe (3) and the second metal corrugated pipe (6) are U-shaped, one end of each of the first metal corrugated pipe and the second metal corrugated pipe is fixedly connected with the second connecting plate (8), the other end of each of the first metal corrugated pipe and the second metal corrugated pipe is provided with a wedge-shaped opening (301), and the wedge-shaped opening (301) is connected with the guide rod (2) through a fastener (12);
The belleville spring set (4) and the pressure sensor (5) pass the guide bar (2), be located between two second limiting plates (10), pressure sensor (5) are established at belleville spring set (4) middle part or both sides, pressure sensor (5) are used for belleville spring set (4) precompression to detect, fastener (12) are taking open-ended ring form metalwork, first bolt hole (1201) are offered respectively to position about fastener (12) open side, fastener (12) open side is fixed first metal bellows (3) or second metal bellows (6) and guide bar (2) together through fifth connecting bolt (1202).
2. The tension-compression equal-strength metal energy consumption self-resetting damper according to claim 1, wherein an end threaded joint (205) is arranged on the end of the guide rod (2), the threaded joint (205) of the end of the guide rod (2) is respectively connected with the limit nut (14) and the connecting joint (202), and the connecting joint (202) is provided with a second lug plate (203) and a second round hole (204).
3. The tension-compression equal-strength metal energy consumption self-resetting damper according to claim 1, characterized in that a first limiting plate (9) is arranged on the outer side of a second limiting plate (10), the first limiting plate (9), the second limiting plate (10), the fixed belleville spring group (4) and the pressure sensor (5) are connected into a whole through a prepressing mounting screw (13) and a nut in a prepressing mode, the nut adjusts the prepressing force and the prepressing position of the belleville spring group (4), and the first limiting plate (9) is fixed with the pipe wall of the cylinder body (1) through a third connecting bolt (17).
4. The tension-compression equal-strength metal energy consumption self-resetting damper is characterized in that a left side sealing plate (101) and a right side sealing plate (102) of the cylinder body are connected with the wall of the cylinder body (1) along the axial direction of the cylinder body through fourth connecting bolts (103), a round hole with the same diameter as a guide rod (2) is formed in the middle of the right side sealing plate (102), and the guide rod (2) enters the cylinder body (1) through the round hole.
5. The tension-compression equal-strength metal energy consumption self-resetting damper is characterized in that two rows of first limit adjusting holes (105) and second limit adjusting holes (106) are uniformly formed in the pipe wall of the cylinder body (1) along the radial direction, the first limit adjusting holes (105) are used for connecting a first connecting plate (7) to be located at the end position of the cylinder body (1), and the second limit adjusting holes (106) are used for connecting a first limit plate (9) to be located at the middle position of the cylinder body (1).
6. The tension-compression equal-strength metal energy consumption self-resetting damper according to claim 1, characterized in that a rectangular groove (201) is formed in the guide rod (2), the rectangular groove (201) is matched with a first protrusion (703) on the first connecting plate (7) and a second protrusion (1001) on the second limiting plate (10) and is used for positioning the first connecting plate (7) and the first limiting plate (9), a second bolt hole (701) on the first connecting plate (7) is aligned with the first limiting adjusting hole (105), and then the cylinder body (1) is fixedly connected with the first connecting plate (7) through the first connecting bolt (15).
7. The tension-compression equal-strength metal energy consumption self-resetting damper according to claim 1, wherein the first connecting plate (7), the second connecting plate (8), the first limiting plate (9) and the second limiting plate (10) are in a circular ring shape, the outer diameters of the first connecting plate (7) and the first limiting plate (9) are smaller than the inner diameter of the cylinder body (1) by 1-2mm, the first connecting bolt (15), the second connecting bolt (16) and the third connecting bolt (17) adopt friction type 8.8 level or 10.9 level, and any one of specifications M12, M16, M20, M22, M24, M27, M30 and M36 is adopted.
8. The installation and use method of the tension-compression equal-strength metal energy consumption self-resetting damper according to any one of claims 1 to 7, which is characterized by comprising the following steps:
A. Component mounting
The guide rod (2) is sleeved with a first metal corrugated pipe (3), a belleville spring set (4), a pressure sensor (5) and a second metal corrugated pipe (6);
B. pre-pressing installation
The first limiting plate (9), the second limiting plate (10), the fixed belleville spring set (4) and the pressure sensor (5) are connected into a whole through a prepressing mounting screw (13) and a nut in a prepressing mode, the nut adjusts the prepressing force and the prepressing position of the belleville spring set (4), and the first limiting plate (9) is fixed with the pipe wall of the cylinder body (1) through a third connecting bolt (17);
C. Applying a pre-compression force
After the first limiting plate (9) is fixed with the pipe wall of the cylinder body (1) through the third connecting bolt (17), the nut on the pre-pressing installation screw rod (13) is unscrewed, so that the belleville spring group (4) can be compressed and deformed, and therefore restoring force is provided, the position of the pressure conduction nut (11) on the guide rod (2) is changed through the shaft side threaded connection part (206), and pre-pressing force is further applied;
D. Combined assembly
First metal bellows (3) and second metal bellows (6), be connected with guide bar (2) through fastener (12), guide bar (2) are connected with cylinder body (1) through first connecting plate (7), first limiting plate (9), first connecting bolt (15) and third connecting bolt (17), left side shrouding (101) and right side shrouding (102) are connected respectively to cylinder body (1) both sides, connect first otic placode (104) and second otic placode (203) respectively on guide bar (2), first otic placode (104) and second otic placode (203) are connected respectively in building structure atress department.
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| CN112503125B (en) * | 2020-11-18 | 2023-07-21 | 东北林业大学 | A spiral friction metal damper with self-resetting function |
| CN113958018B (en) * | 2021-10-25 | 2022-08-23 | 北京交通大学 | Tension-compression unequal-toughness hinge device and assembling method |
| CN114961013B (en) * | 2022-06-24 | 2024-02-20 | 兰州理工大学 | Replaceable component type energy consumption support, self-resetting support and use method thereof |
| CN115233853B (en) * | 2022-08-25 | 2024-01-30 | 兰州理工大学 | A fishbone metal energy-dissipating damper and its installation and use method |
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| GB1039300A (en) * | 1962-09-13 | 1966-08-17 | Metalastik Ltd | Improvements in or relating to dampers |
| US5360210A (en) * | 1991-12-16 | 1994-11-01 | Vectra Technologies, Inc. | Pipe restraint |
| JP6574343B2 (en) * | 2014-06-21 | 2019-09-11 | 日本発條株式会社 | Gas spring device and damping force control method thereof |
| CN104482108B (en) * | 2014-12-05 | 2016-03-02 | 国家电网公司 | A kind of centring type friction damper for pillar class electrical equipment |
| CN106678230A (en) * | 2015-11-10 | 2017-05-17 | 杨文元 | Damping spring shock absorber |
| CN108915113B (en) * | 2018-07-02 | 2020-09-29 | 兰州理工大学 | A segmented combined energy-dissipating shock absorbing viscous damper |
| CN109881806B (en) * | 2019-02-28 | 2024-01-12 | 同济大学 | Self-resetting ripple friction-changing damper |
| CN110173059B (en) * | 2019-06-24 | 2024-03-12 | 西安建筑科技大学 | SMA-wood friction damper with self-resetting function |
| CN110714546A (en) * | 2019-11-04 | 2020-01-21 | 上海市建筑科学研究院 | Self-adaptive buckling-restrained brace |
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