CN113483047A - Stepped energy consumption viscous damper - Google Patents
Stepped energy consumption viscous damper Download PDFInfo
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- CN113483047A CN113483047A CN202110771894.4A CN202110771894A CN113483047A CN 113483047 A CN113483047 A CN 113483047A CN 202110771894 A CN202110771894 A CN 202110771894A CN 113483047 A CN113483047 A CN 113483047A
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- 238000005265 energy consumption Methods 0.000 title abstract description 30
- 238000013016 damping Methods 0.000 claims abstract description 39
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 9
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
- F16F9/303—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium the damper being of the telescopic type
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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
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/54—Arrangements for attachment
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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
- F16F2232/00—Nature of movement
- F16F2232/08—Linear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a stepped energy consumption viscous damper, which comprises a cylinder barrel, wherein two end covers which are oppositely arranged are arranged in the cylinder barrel, damping media are filled between the two end covers in the cylinder barrel, a main piston and an auxiliary piston are connected between the two end covers in the cylinder barrel in a sliding manner, and a plurality of damping holes are formed through the main piston and the auxiliary piston; a main piston rod is fixedly connected with the through main piston, an auxiliary piston rod is fixedly connected with the through auxiliary piston, the main piston is connected with the auxiliary piston rod in a sliding manner, the auxiliary piston is connected with the main piston rod in a sliding manner, and a main rod sliding hole and an auxiliary rod sliding hole are formed through each end cover; one end of the auxiliary piston rod is fixedly connected with a second-order connecting disc, a connecting hole is formed in the second-order connecting disc in a penetrating mode, a clamping groove is formed in the circumferential wall of the main piston rod, a placing cavity is formed in the second-order connecting disc, and a clamping pin matched with the clamping groove is movably connected in the placing cavity. The invention can self-adaptively adjust the energy consumption capability of the damper according to the requirement of multi-working-condition change in the earthquake or wind vibration action process.
Description
Technical Field
The invention relates to the technical field of earthquake resistance and disaster prevention of building structures, in particular to a hierarchical energy-consumption viscous damper.
Background
In order to control the dynamic response of building structures, particularly high-rise building structures, under wind load and earthquake load, mechanical devices are often used for dissipating the energy of wind vibration and earthquake action, so as to achieve the purpose of protecting main structural members, and the concept of structure control is provided. At present, the research and application directions of the structure control are mainly divided into passive control, semi-active control, active control and hybrid control. The passive control technology is widely applied to engineering construction or is used for improving the earthquake resistance or wind resistance of the existing old building due to simple and reliable structure, stable energy consumption performance, low price and convenient maintenance. The passive energy dissipation and shock absorption technology of the structure is that energy dissipation devices such as dampers are arranged at certain parts of the structure, energy input into the structure is dissipated or absorbed through friction, bending and elastic-plastic hysteresis deformation generated by the energy dissipation devices, the seismic reaction of a main body structure is reduced, and the purpose of shock absorption and control is achieved.
The passive energy dissipation damping device adopted in the current building structure system mainly comprises a viscous damper, a metal damper, a viscoelastic damper, a friction damper and the like. The known viscous dampers are usually designed with a piston cylinder and a piston arranged therein, wherein a damping bore is formed in the piston which extends through the piston in the direction of displacement of the piston. When the piston extrudes the damping medium in the piston cylinder, the damping medium passes through the damping hole on the piston at a high speed, energy is consumed, and the conversion from kinetic energy to the heat energy of the damping medium is realized, and the energy consumption effect of the viscous damper is mainly determined by the damping force of the damping hole. However, the conventional viscous damper arranged on a single piston cannot effectively meet the requirement of multi-working-condition change in the earthquake or wind vibration action process.
Disclosure of Invention
The invention aims to provide a hierarchical energy-consumption viscous damper which can adaptively adjust the energy consumption capacity of the damper according to the change requirements of multiple working conditions in the earthquake or wind vibration action process and has better energy-consumption and shock absorption effects under different working conditions.
The technical purpose of the invention is realized by the following technical scheme:
a stepped energy consumption viscous damper comprises a cylinder barrel, wherein two end covers which are oppositely arranged are arranged in the cylinder barrel, movable gaps are reserved between the two end covers and two ends of the cylinder barrel, damping media are filled between the two end covers in the cylinder barrel, a main piston and an auxiliary piston are connected between the two end covers in the cylinder barrel in a sliding mode, a plurality of damping holes are formed in the main piston and the auxiliary piston in a penetrating mode, and in a normal state, a space is reserved between the main piston and the auxiliary piston;
a main piston rod is fixedly connected through the main piston, an auxiliary piston rod is fixedly connected through the auxiliary piston, an auxiliary rod through hole which is connected with the auxiliary piston rod in a sliding mode is formed through the main piston, a main rod through hole which is connected with the main piston rod in a sliding mode is formed through the auxiliary piston, and a main rod sliding hole and an auxiliary rod sliding hole which are respectively connected with the main piston rod and the auxiliary piston rod in a sliding mode are formed through each end cover;
one end of the auxiliary piston rod is fixedly connected with a second-order connecting disc which slides relative to the cylinder barrel in a corresponding movable gap, a connecting hole which is connected with the main piston rod in a sliding mode is formed in the second-order connecting disc in a penetrating mode, a clamping groove is formed in the circumferential wall of the main piston rod, which corresponds to the second-order connecting disc, a placing cavity which is communicated with the connecting hole is formed in the second-order connecting disc, a clamping pin which is matched with the clamping groove is movably connected in the placing cavity, and a movable distance is reserved between the clamping groove and the second-order connecting disc in a normal state;
one end of the cylinder barrel is connected with a first connecting lug ring, one end of the cylinder barrel, which is far away from the first connecting lug ring, is provided with a hole in sliding connection with the main piston rod, and the main piston rod penetrates out of the hole and is connected with a second connecting lug ring.
By adopting the technical scheme, under the action of small vibration and small structural deformation, the main piston rod pulls the main piston to displace in a small range, damping media pass through the damping hole of the main piston to generate damping energy consumption, but the clamping groove on the main piston rod does not move to the position of the clamping pin in the second-order connecting disc;
under the action of large vibration, when the structural deformation is large, the main piston rod generates large-amplitude displacement, when the clamping groove in the main piston rod moves to be opposite to the clamping pin, the clamping pin is popped out to enter the clamping groove, the auxiliary piston rod is oppositely connected with the main piston rod through the second-order connecting disc, the main piston and the auxiliary piston synchronously displace, damping media pass through damping holes in the main piston and the auxiliary piston simultaneously, larger damping is generated to dissipate energy and shock, and strong second-order energy dissipation is realized.
The invention is further provided with: a first spring is arranged between the bottom of the placing cavity and the bayonet.
Through adopting above-mentioned technical scheme, the bayonet lock of being convenient for removes the bayonet lock position after, and the bayonet lock can be popped out fast to the bayonet lock in by first spring.
The invention is further provided with: the clamping groove and the clamping pin are not circular, the circumference of the second-order connecting disc is inwards cut to form a jack communicated with the placing cavity, the clamping pin is provided with a pulling shaft which extends into the jack and is in sliding connection with the pulling shaft, a threaded hole is formed in the free end of the pulling shaft inwards, and a strip-shaped operating hole corresponding to the jack is formed in the side wall of the cylinder barrel.
By adopting the technical scheme, if the damper needs to be subjected to first-order energy consumption state recovery operation after second-order energy consumption starting, the threaded rod penetrates through the strip-shaped operation hole and the jack to be connected with the threaded hole, the bayonet pin is pulled out of the card slot, the controllable telescopic device is placed into the strip-shaped operation hole, the second-order connecting disc is pushed and pulled to the initial position by the telescopic device, and the damper is enabled to recover the capacity of stepped energy consumption and shock absorption.
The invention is further provided with: the strip-shaped operation hole is detachably connected with a strip-shaped sealing cover.
The invention is further provided with: the circumference of second order connection pad inwards cuts and forms spacing chamber, spacing intracavity activity is provided with spacing axle, the bottom in spacing chamber with be provided with the second spring between the spacing axle, spacing axle is kept away from the one end of second spring is the button head, the inner wall of cylinder be provided with the circular arc draw-in groove of the button head matched with of spacing axle, under the normality, spacing axle with circular arc draw-in groove joint makes the draw-in groove with there is the migration distance between the second order connection pad.
By adopting the technical scheme, when the main piston rod drives the main piston to slide, the auxiliary piston and the second-order connecting disc are not easy to drive to slide, and the main piston rod is prevented from being incapable of being connected with the second-order connecting disc, so that the capacity of energy consumption in different orders is lost.
The invention is further provided with: under a normal state, the distance between the main piston and the auxiliary piston is larger than the moving distance between the clamping groove and the second-order connecting disc.
The invention is further provided with: and a protective sleeve sleeved on the main piston rod is arranged between the cylinder barrel and the second connecting earring.
Compared with the prior art, the invention has the following beneficial effects:
firstly, under the action of smaller vibration, only the main piston reciprocates when the structure deforms less, so that damping media generate damping energy consumption and shock absorption through the damping holes, the requirement of the structure on smaller vibration energy consumption is met, under the action of larger vibration, when the structure deforms more, the auxiliary piston is started, the main piston and the auxiliary piston reciprocate simultaneously, the damping media generate damping energy consumption and shock absorption through the damping holes on the main piston and the auxiliary piston respectively, the generated damping is larger, the energy consumption and shock absorption capacity is stronger, and the requirement of the larger structure on vibration energy consumption is met;
after the large vibration effect, the main piston rod is separated from the second-order connecting disc through simple operation, the second-order connecting disc is reset, the damper can recover the capacity of stepped energy consumption and shock absorption, and the first-order energy consumption state recovery operation is simple and convenient;
third, the main piston rod is not easy to drive the auxiliary piston and the second-order connecting disc to slide through the clamping connection of the limiting shaft and the arc clamping groove, and the main piston rod is prevented from being incapable of being connected with the second-order connecting disc, so that the capacity of energy consumption in different orders is lost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial sectional view for showing the internal structure of the present invention;
FIG. 3 is a view for showing the inner structure of the cylinder tube;
FIG. 4 is a view showing the connection relationship between the main piston, the main piston rod and the second connecting ear ring;
FIG. 5 is a view showing the connection relationship between the secondary piston, the secondary piston rod and the second-order connecting disk;
FIG. 6 is a schematic diagram showing the connection relationship between the second-order connecting plate and the latch and the retainer shaft.
In the figure: 1. a cylinder barrel; 11. an end cap; 12. a clearance for movement; 13. a main rod slide hole; 14. a secondary rod slide hole; 15. a first connecting earring; 16. opening a hole; 17. a strip-shaped operation hole; 18. strip-shaped sealing covers; 19. an arc clamping groove; 2. a primary piston; 21. punching an auxiliary rod; 3. a secondary piston; 31. the main rod is perforated; 4. a damping hole; 5. a main piston rod; 51. a card slot; 52. a second connecting earring; 6. an auxiliary piston rod; 7. a second-order connecting disc; 71. connecting holes; 72. a placement chamber; 73. a jack; 74. a limiting cavity; 8. a bayonet lock; 81. a first spring; 82. pulling the shaft; 9. a limiting shaft; 91. a second spring; 10. and (6) a protective sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment refers to fig. 1-6, a stepped energy consumption viscous damper comprises a cylinder barrel 1, two end covers 11 which are oppositely arranged are arranged in the cylinder barrel 1, a certain movable gap 12 is reserved between each end cover 11 and two ends of the cylinder barrel 1, damping media are filled between the two end covers 11 in the cylinder barrel 1, a main piston 2 and an auxiliary piston 3 are connected between the two end covers 11 in the cylinder barrel 1 in a sliding mode, a plurality of damping holes 4 are formed in the cylinder barrel and penetrate through the main piston 2 and the auxiliary piston 3, and a distance is reserved between the main piston 2 and the auxiliary piston 3 in a normal state.
Run through a main piston rod 5 of main piston 2 fixedly connected with, run through two vice piston rods 6 of vice piston 3 fixedly connected with, run through main piston 2 and set up two and vice piston rod 6 sliding connection's vice pole perforation 21, run through vice piston 3 and set up a mobile jib perforation 31 with main piston rod 5 sliding connection, run through each end cover 11 and all set up respectively with main piston rod 5 and vice piston rod 6 sliding connection's a mobile jib slide opening 13 and two vice pole slide openings 14.
One end of the auxiliary piston rod 6 is fixedly connected with a second-order connecting disc 7 sliding relative to the cylinder barrel 1 in the corresponding movable gap 12, a connecting hole 71 sliding connected with the main piston rod 5 is formed in the second-order connecting disc 7 in a penetrating mode, a clamping groove 51 is formed in the circumferential wall of the corresponding position of the main piston rod 5 and the second-order connecting disc 7, a placing cavity 72 communicated with the connecting hole 71 is formed in the second-order connecting disc 7, a clamping pin 8 matched with the clamping groove 51 is movably connected in the placing cavity 72, a first spring 81 is arranged between the bottom of the placing cavity 72 and the clamping pin 8, and after the clamping groove 51 is convenient to move to the position of the clamping pin 8, the clamping pin 8 can be rapidly ejected out of the clamping groove 51 through the first spring 81.
The circumference of the second-order connecting disc 7 is inwards cut to form a limiting cavity 74, a limiting shaft 9 is movably arranged in the limiting cavity 74, a second spring 91 is arranged between the bottom of the limiting cavity 74 and the limiting shaft 9, one end, far away from the second spring 91, of the limiting shaft 9 is a round head, an arc clamping groove 19 matched with the round head of the limiting shaft 9 is formed in the inner wall of the cylinder barrel 1, the limiting shaft 9 is clamped with the arc clamping groove 19 in a normal state, so that the moving distance is reserved between the clamping groove 51 and the second-order connecting disc 7, the distance between the main piston 2 and the auxiliary piston 3 is larger than the moving distance between the clamping groove 51 and the second-order connecting disc 7, and when the main piston rod 5 drives the main piston 2 to slide, the auxiliary piston 3 cannot be driven to slide.
One end of the cylinder barrel 1 is connected with a first connecting ear ring 15, one end of the cylinder barrel 1, which is far away from the first connecting ear ring 15, is provided with an opening 16 which is in sliding connection with the main piston rod 5, the main piston rod 5 penetrates out of the opening 16 and is connected with a second connecting ear ring 52, and a protective sleeve 10 which is externally sleeved on the main piston rod 5 is arranged between the cylinder barrel 1 and the second connecting ear ring 52.
The clamping groove 51 and the clamping pin 8 are not circular, the clamping groove and the clamping pin 8 are square in the embodiment, the circumference of the second-order connecting disc 7 is cut inwards to form a jack 73 communicated with the placing cavity 72, the clamping pin 8 is provided with a pull shaft 82 which extends into the jack 73 and is in sliding connection with the jack 73, the free end of the pull shaft 82 is inwards provided with a threaded hole (not shown), the side wall of the cylinder barrel 1 is provided with a strip-shaped operating hole 17 corresponding to the jack 73, the strip-shaped operating hole 17 is detachably connected with a strip-shaped sealing cover 18, and when the second-order connecting disc 7 moves, the strip-shaped operating hole 17 can be aligned with the threaded hole.
The working principle is as follows: when the vibration damping device is used for small vibration action, the structural deformation is small, so that the main piston rod 5 pulls the main piston 2 to displace in a small range, damping media pass through the damping hole 4 of the main piston 2 to generate damping energy consumption, but the clamping groove 51 on the main piston rod 5 does not move to the position of the clamping pin 8 in the second-order connecting disc 7;
when the large-vibration damping device is used for large vibration action, the structural deformation is large, the main piston rod 5 is enabled to generate large displacement, when the clamping groove 51 on the main piston rod 5 moves to be opposite to the clamping pin 8, the clamping pin 8 is popped out to enter the clamping groove 51, the auxiliary piston rod 6 is enabled to be oppositely connected with the main piston rod 5 through the second-order connecting disc 7, the limiting shaft 9 is driven to slide out of the arc clamping groove 19 during movement, the main piston 2 and the auxiliary piston 3 synchronously displace, damping media are enabled to simultaneously penetrate through the damping holes 4 on the main piston 2 and the auxiliary piston 3, and larger damping is generated to consume energy and damp, so that the strong large-vibration energy consumption damping capacity is achieved;
after the second-order energy consumption is started, if the damper needs to be restored to the stage-by-stage energy consumption state, the threaded rod penetrates through the strip-shaped operation hole 17 and the jack 73 to be connected with the threaded hole, the bayonet 8 is pulled out of the card slot, a device capable of controlling stretching and retracting is placed into the strip-shaped operation hole 17, the second-order connecting disc 7 is pushed and pulled to the initial position through the stretching device, the limiting shaft 9 is connected with the arc-shaped bayonet 19 in a clamping mode, and the damper is enabled to restore the stage-by-stage energy consumption and shock absorption capacity.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a hierarchical power consumption viscous damper, includes cylinder (1), its characterized in that: two end covers (11) which are oppositely arranged are arranged in the cylinder barrel (1), a movable gap (12) is reserved between each end cover (11) and each end of the cylinder barrel (1), a damping medium is filled between each end cover (11) in the cylinder barrel (1), a main piston (2) and an auxiliary piston (3) are connected between the two end covers (11) in the cylinder barrel (1) in a sliding mode, a plurality of damping holes (4) are formed in the main piston (2) and the auxiliary piston (3) in a penetrating mode, and a space is reserved between the main piston (2) and the auxiliary piston (3) in a normal state;
a main piston rod (5) is fixedly connected through the main piston (2), an auxiliary piston rod (6) is fixedly connected through the auxiliary piston (3), an auxiliary rod through hole (21) which is connected with the auxiliary piston rod (6) in a sliding manner is formed through the main piston (2), a main rod through hole (31) which is connected with the main piston rod (5) in a sliding manner is formed through the auxiliary piston (3), and a main rod sliding hole (13) and an auxiliary rod sliding hole (14) which are respectively connected with the main piston rod (5) and the auxiliary piston rod (6) in a sliding manner are formed through each end cover (11);
one end of the auxiliary piston rod (6) is fixedly connected with a second-order connecting disc (7) which slides relative to the cylinder barrel (1) in a position corresponding to the movable gap (12), a connecting hole (71) which is in sliding connection with the main piston rod (5) penetrates through the second-order connecting disc (7), a clamping groove (51) is formed in the circumferential wall of the position, corresponding to the second-order connecting disc (7), of the main piston rod (5), a placing cavity (72) which is communicated with the connecting hole (71) is formed in the second-order connecting disc (7), a clamping pin (8) which is matched with the clamping groove (51) is movably connected in the placing cavity (72), and a movable distance exists between the clamping groove (51) and the second-order connecting disc (7) in a normal state;
one end of the cylinder barrel (1) is connected with a first connecting lug ring (15), one end, far away from the first connecting lug ring (15), of the cylinder barrel (1) is provided with a hole (16) which is connected with the main piston rod (5) in a sliding mode, and the main piston rod (5) penetrates out of the hole (16) and is connected with a second connecting lug ring (52).
2. The stepped, dissipative, viscous damper of claim 1, wherein: a first spring (81) is arranged between the bottom of the placing cavity (72) and the clamping pin (8).
3. A stepped dissipative viscous damper as claimed in any of claims 1 or 2, wherein: the clamping groove (51) and the clamping pin (8) are not circular, the circumference of the second-order connecting disc (7) is cut inwards to form a jack (73) communicated with the placing cavity (72), the clamping pin (8) is provided with a pull shaft (82) which extends into the jack (73) and is in sliding connection with the jack, a threaded hole is formed in the free end of the pull shaft (82) inwards, and a strip-shaped operating hole (17) corresponding to the jack (73) is formed in the side wall of the cylinder barrel (1).
4. The stepped, dissipative, viscous damper of claim 1, wherein: the strip-shaped operating hole (17) is detachably connected with a strip-shaped sealing cover (18).
5. The stepped, dissipative, viscous damper of claim 1, wherein: the circumference of second order connection pad (7) inwards cuts and forms spacing chamber (74), spacing chamber (74) internalization is provided with spacing axle (9), the bottom in spacing chamber (74) with be provided with second spring (91) between spacing axle (9), spacing axle (9) are kept away from the one end of second spring (91) is the button head, the inner wall of cylinder (1) be provided with button head matched with circular arc draw-in groove (19) of spacing axle (9), under the normality, spacing axle (9) with circular arc draw-in groove (19) joint makes draw-in groove (51) with there is the displacement between second order connection pad (7).
6. The stepped, dissipative, viscous damper of claim 1, wherein: under a normal state, the distance between the main piston (2) and the auxiliary piston (3) is larger than the movable distance between the clamping groove (51) and the second-order connecting disc (7).
7. The stepped, dissipative, viscous damper of claim 1, wherein: a protective sleeve (10) sleeved outside the main piston rod (5) is arranged between the cylinder barrel (1) and the second connecting ear ring (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771894.4A CN113483047B (en) | 2021-07-08 | 2021-07-08 | Fractional energy consumption viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771894.4A CN113483047B (en) | 2021-07-08 | 2021-07-08 | Fractional energy consumption viscous damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115613726A (en) * | 2022-10-28 | 2023-01-17 | 华中科技大学 | Tension-compression and torsion viscous energy dissipation damper and civil engineering structure |
| CN115749032A (en) * | 2022-12-05 | 2023-03-07 | 重庆交通大学 | Displacement and acceleration grading double-control hybrid damper |
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| CN115613726A (en) * | 2022-10-28 | 2023-01-17 | 华中科技大学 | Tension-compression and torsion viscous energy dissipation damper and civil engineering structure |
| CN115613726B (en) * | 2022-10-28 | 2024-06-04 | 华中科技大学 | Tension-compression and torsion viscous energy dissipation damper and civil engineering structure |
| CN115749032A (en) * | 2022-12-05 | 2023-03-07 | 重庆交通大学 | Displacement and acceleration grading double-control hybrid damper |
| CN115749032B (en) * | 2022-12-05 | 2024-05-24 | 重庆交通大学 | Displacement and acceleration grading double-control hybrid damper |
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| CN113483047B (en) | 2024-07-19 |
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