CN109778674B - Stepless clearance adjusting type viscous damper and using method thereof - Google Patents
Stepless clearance adjusting type viscous damper and using method thereof Download PDFInfo
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- CN109778674B CN109778674B CN201910080858.6A CN201910080858A CN109778674B CN 109778674 B CN109778674 B CN 109778674B CN 201910080858 A CN201910080858 A CN 201910080858A CN 109778674 B CN109778674 B CN 109778674B
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Abstract
The invention relates to the field of energy dissipation and vibration reduction devices for resisting vibration caused by external loads of bridges and building structures, in particular to a stepless clearance adjustment type viscous damper and a using method thereof. The piston comprises a shell, a piston with an outer edge in sliding sealing contact with the inner wall of the shell, wherein an ear seat is hinged to the left end of a piston rod, ear plates are fixed to the upper side and the lower side of the right end of the piston rod, two taper holes with axial center lines parallel to the piston rod are formed in the pistons on the upper side and the lower side of the piston rod, throttling devices are arranged in sliding grooves, the throttling devices on the left side and the right side are connected through a reversing mechanism, the throttling device on the right side is connected with an adjusting device on the piston rod, and a positioning device for positioning the adjusting device is arranged on the ear plate. According to the gap type viscous damper capable of achieving stepless adjustment aiming at different loads, the flow of viscous liquid is adjusted through the matching of the taper hole and the flow limiting block, so that different damping forces are generated, and the application range is wide.
Description
Technical Field
The invention relates to the field of energy dissipation and vibration reduction devices for resisting vibration caused by external loads of bridges and building structures, in particular to a stepless clearance adjustment type viscous damper and a using method thereof.
Background
In recent years, with the progress of structural vibration control technology, viscous damper technology has been emphasized and fully developed in the civil engineering field of China. As an excellent energy-consumption vibration damper, the viscous damper is generally used in bridge seismic resistance, vibration control of high-rise buildings and seismic reinforcement engineering of building structures. The existing pore type viscous damper is generally composed of a cylinder body, a piston rod, viscous liquid, an end cover, a connecting piece and the like, and the working principle of the existing pore type viscous damper is that under the action of external load, the piston rod drives the piston to move in the cylinder body to force the pressurized liquid to pass through pores on the piston so as to generate damping force consumption structural vibration energy, and the energy consumption effect of the existing pore type viscous damper is directly related to the size of a damping channel. However, at present, viscous dampers developed and produced in the market generally only can provide a single damping force, but cannot meet the requirement of providing multi-gear damping force according to different loads in specific engineering, and the use limitation is large.
Disclosure of Invention
The invention aims to solve the technical problem that the gap type viscous damper capable of realizing stepless adjustment aiming at different loads can generate different damping forces by adjusting the flow of viscous liquid through the matching of the taper hole and the flow limiting block. In addition, the damper is simple in structural form, convenient to install and good in stability.
In order to achieve the purpose, the invention provides the technical scheme that:
an electrodeless clearance adjusting type viscous damper comprises a shell, viscous liquid is filled in the shell, a piston with the outer edge in sliding sealing contact with the inner wall of the shell is arranged in the shell, the left end and the right end of the shell are fixedly and hermetically connected with sealing covers, a connecting plate is fixed on the sealing cover on the right side, a transverse piston rod is fixed in the piston, the left end and the right end of the piston rod penetrate through the sealing covers on the left side and the right side and extend to the outside of the shell, the left end and the right end of the piston rod are hinged with lug seats, lug plates are fixed on the upper side and the lower side of the right end of the piston rod and are arranged in an up-down symmetrical mode, the outer edge of the piston rod is in sliding sealing contact with the sealing covers on the left side and the right side, two taper holes with axial center lines parallel to the piston rod are arranged on the piston on the upper side and the lower side of, all be provided with throttling arrangement in the spout, the throttling arrangement of the left and right sides passes through reversing mechanism and connects, and the throttling arrangement on right side is connected with adjusting device on the piston rod, is provided with the positioner who advances line location to adjusting device on the otic placode of piston rod right-hand member top.
Specifically, throttling arrangement includes the movable rod with spout sliding fit, and both ends all are fixed with a toper current-limiting piece about the movable rod, and toper current-limiting piece is coaxial with the taper hole of its homonymy, and movable rod and piston pass through second spring coupling, have seted up the square hole on the piston rod between two spouts, and the square hole communicates two spouts, all is fixed with the square pole on the movable rod, and the square pole outer fringe contacts with square hole inner edge sliding seal.
Specifically, the reversing mechanism comprises an upper rack and a lower rack, teeth of the upper rack and teeth of the lower rack are arranged oppositely, one end of the lower rack and one end of the upper rack are fixedly connected with square rods of the throttling devices on the left side and the right side respectively, and gears meshed with the upper rack and the lower rack are arranged in a square hole between the upper rack and the lower rack in a rotating mode.
Specifically, adjusting device includes the slotted hole, the slotted hole sets up in the piston rod on piston right side, the slotted hole is coaxial with the piston rod, the slotted hole runs through the piston rod on piston right side, be provided with the regulation pole in the slotted hole, it is fixed with a plurality of sealing plugs along its length direction equipartition on the regulation pole, the outer fringe of sealing plug and the inner edge sliding seal contact of slotted hole, adjust pole left end and right side throttling arrangement's movable rod fixed connection, set up the recess with the slotted hole intercommunication on the piston rod right-hand member between the two otic placodes, be provided with in the recess and adjust pole threaded connection's nut, the pivot is rotated and is set up between the two otic placodes, the otic placode of top is passed in the pivot upper end, be fixed.
The positioning device comprises a fixing ring, the fixing ring is fixed on the upper end face of an upper lug plate, a rotating shaft penetrates through the fixing ring and is coaxial with the fixing ring, a rotating ring which is coaxial with the rotating ring is arranged on the rotating shaft above the fixing ring, the rotating ring is in spline connection with the rotating shaft, a plurality of dies are uniformly distributed and fixed on the lower end face of the rotating ring for the circumference of a datum line according to the axial center line of the rotating ring, a plurality of tooth grooves matched with the dies are uniformly distributed and formed on the upper end face of the fixing ring for the circumference of the datum line according to the axial center line of the fixing ring, the dies are located in the tooth grooves, transverse first fixing rods are fixed at the left end and the right end of the rotating ring, a second fixing rod perpendicular to the first fixing rods is arranged on the first fixing rods in a sliding mode, a lantern ring which is rotatably connected is sleeved on the fixing ring, the lower ends of the second fixing rods penetrate through the first fixing.
Specifically, the outer edge of the piston rod at the outer side of the sliding groove is fixed with a limiting ring.
Specifically, a baffle is fixed between the two ear plates on the right side of the cam.
Specifically, the sealing cover is fixedly connected with the shell through a bolt.
Specifically, the viscous liquid is simethicone with a small viscosity-temperature coefficient.
Compared with the prior art, the invention has the beneficial effects that:
the clearance type viscous damper has the advantages of simple structure, convenience in installation and good stability, can realize stepless adjustment aiming at different loads, adjusts the flow of viscous liquid through the matching of the taper hole and the flow limiting block so as to generate different damping forces, and has wide application range.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the area a in fig. 1.
Fig. 3 is an enlarged view of the region B in fig. 2.
Part names in the drawings are as follows:
1. the sealing device comprises a shell, 2, a sealing cover, 3, a bolt, 4, a piston rod, 5, an ear seat, 6, a piston, 7, a taper hole, 8, a screw die, 9, a movable rod, 10, a flow limiting block, 11, a limiting ring, 12, a sliding groove, 13, an upper rack, 14, a square hole, 15, a gear, 16, a square rod, 17, a lower rack, 18, an ear plate, 19, a baffle plate, 20, a tooth groove, 21, a groove hole, 22, a sealing plug, 24, a groove, 25, a rotating shaft, 26, a cam, 27, a fixing ring, 28, a lantern ring, 29, a rotating ring, 30, a first fixing rod, 31, a second fixing rod, 32, a top plate, 33, a first spring, 34, a second spring, 35, a nut, 36 and a connecting plate.
Detailed Description
As shown in fig. 1-3, a stepless clearance adjusting type viscous damper comprises a housing 1, wherein viscous liquid is filled in the housing 1, and the viscous liquid is dimethyl silicone oil with a small viscosity-temperature coefficient. A piston 6 with the outer edge in sliding sealing contact with the inner wall of the shell 1 is arranged in the shell 1, the left end and the right end of the shell 1 are fixedly and hermetically connected with a sealing cover 2, the sealing cover is fixedly connected with the shell 1 through a bolt 3, a connecting plate 36 is fixed on the sealing cover 2 on the right side, a transverse piston rod 4 is fixed in the piston 6, the left end and the right end of the piston rod 4 penetrate through the sealing covers 2 on the left side and the right side and extend to the outside of the shell 1, the left end of the piston rod 4 is hinged with an ear seat 5, the upper side and the lower side of the right end of the piston rod 4 are respectively fixed with an ear plate 18, the two ear plates 18 are symmetrically arranged up and down, the outer edge of the piston rod 4 is in sliding sealing contact with the sealing covers 2 on the left side and the right side, two taper holes 7 with the axial center lines parallel to the piston rod 4 are arranged on the pistons 6 on the, the piston rods 4 on the left side and the right side of the piston 6 in the shell 1 are respectively provided with a sliding chute 12, and the outer edges of the piston rods 4 outside the sliding chutes 12 are respectively fixed with a limiting ring 11. The inside of the chute 12 is provided with a throttling device, the throttling devices on the left side and the right side are connected through a reversing mechanism, the throttling device on the right side is connected with an adjusting device on the piston rod 4, and a positioning device for positioning the adjusting device is arranged on an ear plate 18 above the right end of the piston rod 4.
The throttling device comprises a movable rod 9 in sliding fit with sliding grooves 12, conical flow limiting blocks 10 are fixed at the upper end and the lower end of the movable rod 9, the conical flow limiting blocks 10 are coaxial with conical holes 7 on the same side of the conical flow limiting blocks, the movable rod 9 is connected with a piston 6 through a second spring 34, a square hole 14 is formed in a piston rod 4 between the two sliding grooves 12, the square hole 14 is communicated with the two sliding grooves 12, a square rod 16 is fixed on the movable rod 9, and the outer edge of the square rod 16 is in sliding sealing contact with the inner edge of the square hole 14.
The reversing mechanism comprises an upper rack 13 and a lower rack 17, teeth of the upper rack 13 and teeth of the lower rack 17 are arranged oppositely, one end of the lower rack 17 and one end of the upper rack 13 are fixedly connected with square rods 16 of throttling devices on the left side and the right side respectively, and gears 15 meshed with the upper rack 13 and the lower rack 17 are rotatably arranged in square holes 14 between the upper rack 13 and the lower rack 17 respectively.
The adjusting device comprises a slotted hole 21, the slotted hole 21 is arranged in the piston rod 4 on the right side of the piston 6, the slotted hole 21 and the piston rod 4 are coaxial, the slotted hole 21 penetrates through the piston rod 4 on the right side of the piston 6, an adjusting rod 23 is arranged in the slotted hole 21, a plurality of sealing plugs 22 are uniformly distributed and fixed on the adjusting rod 23 along the length direction of the adjusting rod, the outer edges of the sealing plugs 22 are in sliding sealing contact with the inner edges of the slotted hole 21, and the sealing plugs 22 can prevent the piston 6 from reciprocating in the shell 1 and make viscous liquid flow out of the slotted hole 21 after generating pressure on the viscous liquid in the.
The left end of the adjusting rod 23 is fixedly connected with the movable rod 9 of the right throttling device, the right end of the piston rod 4 between the two lug plates 18 is provided with a groove 24 communicated with the slotted hole 21, a nut 35 in threaded connection with the adjusting rod 23 is arranged in the groove 24, a rotating shaft 25 is rotatably arranged between the two lug plates 18, the upper end of the rotating shaft 25 penetrates through the lug plate 18 above, a cam 26 is fixed on the rotating shaft 25 between the two lug plates 18, the right end of the adjusting rod 23 is in contact with the outer edge of the cam 26, a baffle plate 19 is fixed between the two lug plates 18 on the right side of the cam 26, and the baffle plate 19 can prevent the cam 26 from being damaged when the.
The positioning device comprises a fixed ring 27, the fixed ring 27 is fixed on the upper end face of the upper ear plate 18, a rotating shaft 25 penetrates through the fixed ring 27 and is coaxial with the fixed ring 27, a rotating ring 29 coaxial with the fixed ring 27 is arranged on the rotating shaft 25 above the fixed ring 27, the rotating ring 29 is in spline connection with the rotating shaft 25, a plurality of dies 8 are uniformly distributed and fixed on the lower end face of the rotating ring 29 by taking the axial central line as a datum line circumference, a plurality of tooth grooves 20 matched with the dies 8 are uniformly distributed and formed on the upper end face of the fixed ring 27 by taking the axial central line as a datum line circumference, the dies 8 are positioned in the tooth grooves 20, transverse first fixed rods 30 are fixed at the left end and the right end of the rotating ring 29, second fixed rods 31 vertical to the first fixed rods 30 are arranged on the first fixed rods 30 in a sliding manner, a lantern ring 28 rotatably connected with the fixed ring 27 is sleeved with the fixed ring 27, a top plate 32 is fixed at the upper end of the second fixing rod 31, and a first spring 33 is sleeved on the second fixing rod 31 between the top plate 32 and the first fixing rod 30.
When the device is used, the ear seat 5 is connected with the structure, the connecting plate 36 is connected with the stabilizing piece, and the damping force of the device is changed through the adjusting device according to the external load requirement.
Before adjustment, the nut 35 is loosened to enable the nut to exit the groove 24, when the damping force of the device needs to be increased, the first fixing rod 30 enables the rotating ring 29 to move upwards, the first spring 33 is compressed, after the threading die 8 exits from the thread groove 20, the rotating ring 29 is rotated, the rotating ring 29 enables the rotating shaft 25 to rotate, meanwhile, the lantern ring 28 rotates, the rotating shaft 25 enables the cam 26 to rotate, the far-end of the cam 26 tends to be in contact with the right end of the adjusting rod 23, the adjusting rod 23 moves towards the inside of the shell 1, the adjusting rod 23 enables the right-side throttling device to approach the piston 6, under the matching action of the upper rack 13, the lower rack 17 and the gear 15, the left throttling device also approaches the piston 6, the second spring 34 is compressed, the conical flow limiting block 10 gradually enters the conical hole 7, the gap between the outer edge of the flow limiting block 10 and the inner edge of the conical hole 7 is reduced, and the first fixing rod, under the action of the elastic force of the first spring 33, the rotating ring 29 moves downwards, after the dies 8 on the lower end face of the rotating ring 29 fall into the tooth grooves 20 on the upper end face of the fixing ring 27 again, the rotating shaft 25 is stabilized, then the nut 35 is screwed, so that the left end face of the nut 35 is tightly abutted to the left side groove wall of the groove 24, and the adjusting rod 23 is further stabilized, when the piston 6 moves back and forth in the shell 1, viscous liquid in the left chamber and the right chamber of the piston 6 in the shell 1 flows through a small gap between the outer edge of the flow limiting block 10 and the inner edge of the tapered hole 7 due to unbalanced pressure, so that a large damping force is generated, the limiting ring 11 can prevent the movable rod 9 from impacting the sealing cover 2 when the piston 6 moves back and forth in the shell 1, and the throttling device and the.
When the damping force of the device needs to be reduced, the rotating shaft 25 is rotated according to the steps, the proximal end of the cam 26 tends to be contacted with the right end of the adjusting rod 23, the right throttling device is far away from the piston 6 under the action of the elastic force of the second spring 34, the left throttling device is also far away from the piston 6 under the matching action of the upper rack 13, the lower rack 17 and the gear 15, the conical flow limiting block 10 gradually withdraws to the conical hole 7, the gap between the outer edge of the flow limiting block 10 and the inner edge of the conical hole 7 is enlarged, and when the piston 6 reciprocates in the shell 1, viscous liquid in the left chamber and the right chamber of the piston 6 in the shell 1 flows through the larger gap between the outer edge of the flow limiting block 10 and the inner edge of the conical hole 7 due to pressure imbalance, so that relatively small damping force is.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a electrodeless clearance formula viscous damper of adjusting, including casing (1), fill viscous liquid in casing (1), be provided with piston (6) of outer fringe and casing (1) inner wall sliding seal contact in casing (1), the equal fixedly sealed connection in both ends is covered (2) about casing (1), be fixed with connecting plate (36) on the closing cap (2) on right side, a serial communication port, piston (6) internal fixation has horizontal piston rod (4), both ends pass closing cap (2) of the left and right sides and extend to casing (1) outside about piston rod (4), piston rod (4) left end hinge joint has ear seat (5), the upper and lower both sides of piston rod (4) right-hand member all are fixed with ear board (18), two ear board (18) longitudinal symmetry set up, piston rod (4) outer fringe and the closing cap (2) sliding seal contact of the left and right sides, all be provided with two axial center line and piston rod (4) on piston (6) of the upper and lower both sides of piston rod (4) are flat The piston rod structure comprises two taper holes (7) which are arranged in a row, wherein the two taper holes (7) are arranged in a bilateral symmetry mode and are communicated, the two communicated taper holes (7) penetrate through a piston (6), the large opening ends of the two taper holes (7) are far away from each other, sliding chutes (12) are formed in piston rods (4) on the left side and the right side of the piston (6) in a shell (1), throttling devices are arranged in the sliding chutes (12), the throttling devices on the left side and the right side are connected through a reversing mechanism, the throttling device on the right side is connected with an adjusting device on the piston rod (4), and a positioning device for positioning the adjusting device is arranged on an ear plate (18) above the right end of;
the throttling device comprises a movable rod (9) in sliding fit with sliding chutes (12), conical flow limiting blocks (10) are fixed at the upper end and the lower end of the movable rod (9), the conical flow limiting blocks (10) are coaxial with conical holes (7) on the same side of the conical flow limiting blocks, the movable rod (9) is connected with a piston (6) through a second spring (34), a square hole (14) is formed in a piston rod (4) between the two sliding chutes (12), the square hole (14) is communicated with the two sliding chutes (12), a square rod (16) is fixed on the movable rod (9), and the outer edge of the square rod (16) is in sliding sealing contact with the inner edge of the square hole (14);
the reversing mechanism comprises an upper rack (13) and a lower rack (17), teeth of the upper rack (13) and teeth of the lower rack (17) are arranged oppositely, one end of the lower rack (17) and one end of the upper rack (13) are fixedly connected with square rods (16) of the throttling devices on the left side and the right side respectively, and gears (15) meshed with the upper rack (13) and the lower rack (17) are rotatably arranged in square holes (14) between the upper rack (13) and the lower rack (17) respectively.
2. The stepless gap-adjusting viscous damper according to claim 1, characterized in that the adjusting device comprises a slot (21), the slot (21) is arranged in the piston rod (4) on the right side of the piston (6), the slot (21) and the piston rod (4) are coaxial, the slot (21) penetrates through the piston rod (4) on the right side of the piston (6), an adjusting rod (23) is arranged in the slot (21), a plurality of sealing plugs (22) are uniformly distributed and fixed on the adjusting rod (23) along the length direction thereof, the outer edge of each sealing plug (22) is in sliding sealing contact with the inner edge of the slot (21), the left end of the adjusting rod (23) is fixedly connected with the movable rod (9) of the right throttling device, a groove (24) communicated with the slot (21) is arranged on the right end of the piston rod (4) between the two ear plates (18), and a nut (35) in threaded connection with the adjusting rod (23) is, the rotating shaft (25) is rotatably arranged between the two lug plates (18), the upper end of the rotating shaft (25) penetrates through the lug plate (18) above, a cam (26) is fixed on the rotating shaft (25) between the two lug plates (18), and the right end of the adjusting rod (23) is in contact with the outer edge of the cam (26).
3. The viscous damper with gap stepless adjustment function as claimed in claim 1, wherein the positioning device comprises a fixed ring (27), the fixed ring (27) is fixed on the upper end surface of the upper ear plate (18), the rotating shaft (25) passes through the fixed ring (27) and is coaxial therewith, a rotating ring (29) coaxial therewith is arranged on the rotating shaft (25) above the fixed ring (27), the rotating ring (29) is in spline connection with the rotating shaft (25), a plurality of dies (8) are uniformly distributed and fixed on the lower end surface of the rotating ring (29) according to the axial center line thereof as the circumference of the reference line, a plurality of tooth sockets (20) matched with the dies (8) are uniformly distributed and arranged on the upper end surface of the fixed ring (27) according to the axial center line as the circumference of the reference line, the dies (8) are positioned in the tooth sockets (20), and transverse first fixing rods (30) are fixed at the left end and the right end of the rotating ring (29), all slide on first dead lever (30) and be provided with rather than vertically second dead lever (31), the cover is equipped with rather than rotating lantern ring (28) of being connected on solid fixed ring (27), second dead lever (31) lower extreme pass behind first dead lever (30) with lantern ring (28) fixed connection, second dead lever (31) upper end is fixed with roof (32), the cover is equipped with first spring (33) on second dead lever (31) between roof (32) and first dead lever (30).
4. The viscous damper with gap stepless regulation function as claimed in claim 1, wherein the outer edge of the piston rod (4) outside the sliding groove (12) is fixed with a limit ring (11).
5. Stepless adjustable gap viscous damper according to claim 2, characterized in that a baffle (19) is fixed between the two ear plates (18) on the right side of the cam (26).
6. Electrodeless gap-adjusting viscous damper according to claim 1, characterized in that the cover and the housing (1) are fixedly connected by means of bolts (3).
7. The infinite regulation gap type viscous damper according to claim 1, wherein the viscous liquid is dimethylsilicone oil.
8. A use method of the stepless clearance adjustment type viscous damper adopts the stepless clearance adjustment type viscous damper as claimed in claim 1, and is characterized in that when in use, the ear seat (5) is connected with the structure, the connecting plate (36) is connected with the stabilizing piece, the damping force of the device is changed through the adjusting device according to the external load requirement,
before adjustment, the nut (35) is loosened to enable the nut to exit from the groove (24), when the damping force of the device needs to be increased, the rotating ring (29) is enabled to move upwards through the first fixing rod (30), the first spring (33) is compressed, after the screw die (8) exits from the tooth socket (20), the rotating ring (29) is rotated, the rotating shaft (25) can enable the rotating shaft (29) to rotate, the lantern ring (28) rotates along with the rotating shaft, the rotating shaft (25) enables the cam (26) to rotate, the far end of the cam (26) tends to be in contact with the right end of the adjusting rod (23), the adjusting rod (23) can move towards the inside of the shell (1), the adjusting rod (23) enables the right throttling device to approach towards the piston (6), under the matching effect of the upper rack (13), the lower rack (17) and the gear (15), the left throttling device can also approach towards the piston (6), and the second spring (34) is compressed, the conical flow limiting block (10) gradually enters the taper hole (7), the gap between the outer edge of the flow limiting block (10) and the inner edge of the taper hole (7) is reduced, a first fixing rod (30) is loosened after adjustment, the rotating ring (29) descends under the action of the elastic force of a first spring (33), after a threading die (8) on the lower end face of the rotating ring (29) falls into a tooth groove (20) on the upper end face of the fixing ring (27) again, the rotating shaft (25) is stabilized, then the nut (35) is screwed, so that the left end face of the nut (35) is tightly abutted against the left side groove wall of the groove (24), the adjusting rod (23) is further stabilized, when the piston (6) moves back and forth in the shell (1), viscous liquid in left and right chambers of the piston (6) in the shell (1) flows through a small gap between the outer edge of the flow limiting block (10) and the inner edge of the taper hole (7) due to unbalanced pressure, and accordingly large damping force is generated, the limit ring (11) can prevent the movable rod (9) from impacting the seal cover (2) when the piston (6) moves back and forth in the shell (1), thereby effectively protecting the throttling device and the reversing device,
when the damping force of the device needs to be reduced, the rotating shaft (25) is rotated according to the steps, and the proximal end of the cam (26) tends to contact the right end of the adjusting rod (23), under the action of the elastic force of the second spring (34), the right throttling device is far away from the piston (6), under the matching action of the upper rack (13), the lower rack (17) and the gear (15), the throttling device on the left side is also far away from the piston (6), the conical flow limiting block (10) gradually withdraws to the taper hole (7), the gap between the outer edge of the flow limiting block (10) and the inner edge of the taper hole (7) is enlarged, when the piston (6) moves back and forth in the shell (1), viscous liquid in the left and right chambers of the piston (6) in the shell (1) flows through a larger gap between the outer edge of the flow limiting block (10) and the inner edge of the taper hole (7) due to pressure imbalance, so that relatively smaller damping force is generated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910080858.6A CN109778674B (en) | 2019-01-28 | 2019-01-28 | Stepless clearance adjusting type viscous damper and using method thereof |
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| CN201910080858.6A CN109778674B (en) | 2019-01-28 | 2019-01-28 | Stepless clearance adjusting type viscous damper and using method thereof |
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| CN109778674B true CN109778674B (en) | 2021-03-30 |
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| CN112878775B (en) * | 2021-01-11 | 2022-03-08 | 西安建筑科技大学 | Viscous damper |
| CN114593177B (en) * | 2022-03-22 | 2023-08-08 | 河南理工大学 | Nonlinear energy trap damping adjustment structure |
| CN116180926B (en) * | 2023-04-21 | 2023-08-01 | 河南中投建设有限公司辉县市分公司 | Anti-seismic assembled building system |
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| JP2000220692A (en) * | 1999-02-01 | 2000-08-08 | Kajima Corp | Restriction/releasing type vibration control device |
| KR20140043917A (en) * | 2014-03-07 | 2014-04-11 | 주식회사 케이오비에이 | Shock absorber |
| CN108868278A (en) * | 2018-08-17 | 2018-11-23 | 河海大学 | A kind of Effects of Viscous Fluid Damper of self detection of performance |
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