Adjustable large-output magnetorheological damper applied to building structure

Abstract

The invention discloses an adjustable high-output magnetorheological damper applied to a building structure, and relates to the technical field of magnetorheological dampers. The cylinder comprises an outer cylinder body, an inner cylinder body is sleeved with the outer cylinder body, and a cavity is formed between the inner cylinder body and the outer cylinder body; the magnetic conduction modules are in sliding fit in the inner cylinder body, rotating rods are rotationally matched in the magnetic conduction modules, the first ends, extending out of the magnetic conduction modules, of the rotating rods are meshed with two guide plates, the guide plates are in sliding fit with one sides of the magnetic conduction modules, and the other sides of the magnetic conduction modules are elastically matched with two positioning plates; and rotating plates are rotationally matched with the opposite inner sides of the two positioning plates. A flowing space is provided for magnetorheological fluid through the design of the cavity, the damping effect can be enhanced in combination with the design of the magnetic conduction module, the displacement amount of the guide plate can be controlled through threaded transmission of the rotating rod, then the effective length of the magnetorheological damping gap is continuously changed, and linear adjustment of damping force is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of magnetorheological dampers, and in particular relates to an adjustable high-output magnetorheological damper applied to building structures. Background Art

[0002] Magnetorheological dampers generally achieve changes in damping force by changing the magnitude of the current.

[0003] The patent application with announcement number CN110273962U discloses a disc-type magnetorheological damper that changes the damping force by manual adjustment. Paragraph 0020 of its specification discloses: when the damping force needs to be changed, the magnetic module is manually moved by the manual handle, that is, the magnetic module is moved in the radial direction relative to the rotating axis. The movement of the magnetic module changes the effective length of the magnetorheological damping gap to achieve a change in the damping force. At this time, the second threaded hole on the magnetic module is aligned with the first threaded holes on both sides of the groove and fixed with bolts.

[0004] During actual use, since the position of the first threaded hole is pre-set, when one end of the bolt is used to fix the magnetic module in the groove, the magnetic module can only be installed in a specific position and cannot be moved at will. The length of the magnetorheological damping gap depends on the position adjustment of the magnetic module. This position fixity causes the length of the magnetorheological damping gap to be unable to be flexibly changed, and thus cannot achieve effective regulation of the damping force.

[0005] Therefore, an adjustable high-output magnetorheological damper applied to building structures is proposed to solve the above-mentioned drawbacks. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an adjustable high-output magnetorheological damper for use in building structures, thereby solving the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] An adjustable high-output magnetorheological damper for building structures comprises: an outer cylinder body, an inner cylinder body is sleeved in the outer cylinder body, and a cavity is formed between the inner cylinder body and the outer cylinder body;

[0009] Multiple magnetic conductive modules are slidably fitted in the inner cylinder body, and a rotating rod is rotatably fitted in the magnetic conductive module. The first end of the rotating rod extending out of the magnetic conductive module is engaged with two guide plates, and the guide plate is slidably fitted on one side of the magnetic conductive module. The other side of the magnetic conductive module is elastically fitted with two positioning plates. The opposite inner sides of the two positioning plates are rotatably fitted with rotating plates, and the ends of the two adjacent rotating plates are rotatably fitted with arc plates. The second end of the rotating rod extending out of the magnetic conductive module is sleeved with an annular plate that is threadedly fitted with the arc plate.

[0010] Optionally, tooth plates are fixed on the relative inner sides of two adjacent guide plates, a gear is meshed between the two tooth plates, a threaded hole is provided on the gear, the first end of the rotating rod close to the tooth plate is provided with a first external thread that cooperates with the threaded hole, and a rotating disk is fixed to the end of the rotating rod away from the magnetic conductive module, the outer diameter of the rotating disk is smaller than the inner diameter of the annular plate, the inner wall of the annular plate is provided with an internal thread, and the outer wall of the arc plate is provided with a second external thread that cooperates with the internal thread.

[0011] Optionally, a plurality of first limiting grooves are provided on the relative inner sides of two adjacent magnetic conductive modules, two first limiting blocks are fixed on the side of the guide plate close to the magnetic conductive module, and the first limiting blocks slide in the first limiting grooves, and a plurality of second limiting grooves are provided on the relative outer sides of the two adjacent magnetic conductive modules, two second limiting blocks are fixed on the side of the positioning plate close to the guide plate, and the second limiting blocks slide in the second limiting grooves, and grooves are provided on the relative inner sides of the two adjacent second limiting blocks, and a spring is installed between the two grooves.

[0012] Optionally, the outer cylinder body includes a first wall plate and two first cover plates that are respectively threadedly engaged with the openings at both ends of the first wall plate. A second through hole and a plurality of first guide grooves are provided on the first cover plate. The magnetic module slides in the first guide groove. Rubber pads that engage with the first guide grooves are fixed on the relative outer sides of the two positioning plates, and a rotating shaft is installed between the two second through holes.

[0013] Optionally, the inner cylinder body includes a second wall plate and two second cover plates that are respectively threadedly engaged with the openings at both ends of the second wall plate. The second cover plate is provided with a third through hole, a plurality of second guide grooves and a plurality of positioning grooves connected to the second guide grooves. The rotating shaft is installed in the third through hole, the magnetic conductive module is slidably engaged in the second guide groove, and the end of the guide plate away from the magnetic conductive module is slidably engaged in the positioning groove. A plurality of first blocking magnetic tapes and a plurality of second blocking magnetic tapes are installed between the two second cover plates. The first blocking magnetic tapes and the second blocking magnetic tapes are both arc-shaped, and the length of the first blocking magnetic tapes is greater than the length of the second blocking magnetic tapes. The first blocking magnetic tapes and the second blocking magnetic tapes are arranged in parallel and distributed in a ladder pattern.

[0014] Optionally, multiple second placement slots and multiple third placement slots are provided on the relative inner sides of the two second cover plates, the two ends of the first blocking tape are respectively located in the two relative third placement slots, and the two ends of the second blocking tape are respectively located in the two relative second placement slots. Multiple inertia blocks are fixed on the rotating shaft, and the inertia blocks are located between the two second cover plates.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0016] When the rotating rod rotates, its first end drives the guide plate to slide on one side of the magnetic module through the meshing structure. At the same time, the annular plate at the second end drives the arc plate to rotate through the thread, driving the rotating plate to push the positioning plate to move elastically, thereby adjusting the effective area or pressure of the internal structure of the damper, and realizing flexible adjustment of the damper output. The design of the cavity provides flow space for the magnetorheological fluid, and combined with the design of the magnetic module, it can enhance the damping effect. The threaded transmission of the rotating rod can control the displacement of the guide plate, thereby continuously changing the effective length of the magnetorheological damping gap, and realizing linear adjustment of the damping force.

[0017] Manually turning the rotating disk drives the rotating rod to rotate. The annular plate cooperates with the second external thread of the arc plate through the internal thread, so that the arc plate moves radially, changing the range of interaction with the magnetorheological fluid. The rotating disk provides a manual adjustment interface for easy operation. The threaded transmission method can realize the control of the position of the arc plate, thereby linearly adjusting the output of the damper.

[0018] The positioning plate slides in the second limiting groove through the second limiting block. The spring provides elastic force in the groove so that the positioning plate can automatically reset after being subjected to force. The second limiting block cooperates with the second limiting groove to make the positioning plate move linearly. The elastic reset function of the spring can buffer the impact force when the damper body vibrates, while maintaining stable contact between the positioning plate and the curved plate.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure;

[0022] Figure 2 Schematic diagram of the cross-section structure Figure 1 ;

[0023] Figure 3 Schematic diagram of the cross-section structure Figure 2 ;

[0024] Figure 4 Schematic diagram of the cross-section structure Figure 3 ;

[0025] Figure 5 Schematic diagram of the magnetic conductive module structure;

[0026] Figure 6 Schematic diagram of the guide plate structure;

[0027] Figure 7 Schematic diagram of the cross-section structure Figure 4 .

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] Outer cylinder body 1, first wall plate 101, first cover plate 102, second through hole 103, second placement groove 104, third placement groove 105, first guide groove 106, inner cylinder body 2, second wall plate 201, second cover plate 202, third through hole 203, liquid injection hole 204, exhaust hole 205, second guide groove 206, positioning groove 207, rotating shaft 3, inertia block 4, second resistance magnetic tape 5, first resistance magnetic tape 6, magnetic conductive module 7, rotating disk 8, first through hole 9, rotating rod 10, first limiting groove 11, threaded hole 12, guide plate 13, first limiting block 14, tooth plate 15, first placement groove 16, second limiting groove 17, second limiting block 18, positioning plate 19, rubber pad 20, groove 21, spring 22, fourth placement groove 23, arc plate 24, fixed block 25, rotating plate 26, annular plate 27, cavity 28, gear 29.

[0030] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] See also Figure 1-7 As shown, in this embodiment, an adjustable high-output magnetorheological damper for building structures is provided, comprising an outer cylinder 1, an inner cylinder 2 is sleeved inside the outer cylinder 1, and a cavity 28 is formed between the inner cylinder 2 and the outer cylinder 1;

[0033] Multiple magnetic modules 7 are slidably fitted in the inner cylinder body 2, and a rotating rod 10 is rotatably fitted in the magnetic module 7. The first end of the rotating rod 10 extending out of the magnetic module 7 is engaged with two guide plates 13, and the guide plate 13 is slidably fitted on one side of the magnetic module 7. The other side of the magnetic module 7 is elastically fitted with two positioning plates 19. The opposite inner sides of the two positioning plates 19 are rotatably fitted with a rotating plate 26, and the ends of the two adjacent rotating plates 26 are rotatably fitted with an arc plate 24. The second end of the rotating rod 10 extending out of the magnetic module 7 is sleeved with a ring plate 27 threadedly fitted with the arc plate 24.

[0034] When the rotating rod 10 rotates, its first end drives the guide plate 13 to slide on one side of the magnetic module 7 through the meshing structure. At the same time, the annular plate 27 at the second end drives the arc plate 24 to rotate through the thread, driving the rotating plate 26 to push the positioning plate 19 to move elastically, thereby adjusting the effective area or pressure of the internal structure of the damper, and realizing flexible adjustment of the damper output. The design of the cavity 28 provides flow space for the magnetorheological fluid. Combined with the design of the magnetic module 7, the damping effect can be enhanced. The threaded transmission of the rotating rod 10 can control the displacement of the guide plate 13, thereby continuously changing the effective length of the magnetorheological damping gap, and realizing linear adjustment of the damping force.

[0035] In this embodiment, toothed plates 15 are fixed to the opposing inner sides of two adjacent guide plates 13. A gear 29 meshes between the two toothed plates 15. Gear 29 has a threaded hole 12 defined therein. A first external thread is provided on the first end of the rotating rod 10, proximate the toothed plates 15, and engages with the threaded hole 12. When the rotating rod 10 rotates, the first external thread engages with the threaded hole 12 of the gear 29, driving the gear 29 to rotate. This in turn engages the toothed plates 15 on either side, causing the two guide plates 13 to slide synchronously. The meshing structure between the toothed plates 15 and the gear 29 synchronizes the adjustment of the two guide plates 13, reducing uneven force. The threaded transmission controls the displacement of the guide plates 15.

[0036] In this embodiment, a rotating disk 8 is fixed to the end of the rotating rod 10 away from the magnetic conductive module 7. The outer diameter of the rotating disk 8 is smaller than the inner diameter of the annular plate 27. The inner wall of the annular plate 27 is provided with an internal thread, and the outer wall of the curved plate 24 is provided with a second external thread that mates with the internal thread. Manual rotation of the rotating disk 8 rotates the rotating rod 10. The internal thread of the annular plate 27 mates with the second external thread of the curved plate 24, causing the curved plate 24 to move radially, changing the range of interaction with the magnetorheological fluid. The rotating disk 8 provides a manual adjustment interface for convenient operation. The threaded transmission method can control the position of the curved plate 24, thereby linearly adjusting the output of the damper.

[0037] In this embodiment, a plurality of first limiting slots 11 are defined on the opposing inner sides of two adjacent magnetic conductive modules 7. Two first limiting blocks 14 are fixed to the side of the guide plate 13 proximate to the magnetic conductive module 7. The first limiting blocks 14 slidably engage within the first limiting slots 11. The guide plate 13 slides within the first limiting slots 11 via the first limiting blocks 14, allowing it to move along a predetermined direction of the magnetic conductive module 7, minimizing deviation. The limiting structure constrains the motion trajectory of the guide plate 13, reducing tilting or jamming during adjustment and improving the stability of the damper's internal structure.

[0038] In this embodiment, the relative outer sides of two adjacent magnetic conductive modules 7 are each provided with a first placement slot 16 and a plurality of second limiting slots 17 connected to the first placement slot 16. The positioning plate 19 slides in the first placement slot 16. Two second limiting blocks 18 are fixed to the side of the positioning plate 19 close to the guide plate 13. The second limiting blocks 18 slide in the second limiting slots 17. A groove 21 is provided on the relative inner sides of the two adjacent second limiting blocks 18. A spring 22 is installed between the two grooves 21. The positioning plate 19 slides in the second limiting slot 17 through the second limiting blocks 18. The spring 22 provides elastic force in the groove 21, so that the positioning plate 19 can automatically reset after being subjected to force. The second limiting blocks 18 cooperate with the second limiting slots 17 to make the positioning plate 19 move linearly. The elastic reset function of the spring 22 can buffer the impact force when the damper body vibrates, while maintaining stable contact between the positioning plate 19 and the curved plate 24.

[0039] The outer cylinder body 1 of this embodiment includes a first wall plate 101 and two first cover plates 102 that are threadedly engaged with the openings at both ends of the first wall plate 101. The first cover plate 102 is provided with a second through-hole 103 and a plurality of first guide grooves 106. The magnetic conductive module 7 slides within the first guide grooves 106. Rubber pads 20 that engage with the first guide grooves 106 are fixed to the opposing outer sides of the two positioning plates 19. The rotating shaft 3 is mounted between the two second through-holes 103. The magnetic conductive module 7 slides within the first guide grooves 106, with the rubber pads 20 in contact and sealing contact with the guide grooves. The rotating shaft 3 passes through the second through-holes 103 to connect the inner and outer cylinder bodies, transmitting rotational motion. The detachable structure of the outer cylinder body 1 facilitates installation and maintenance. The rubber pads 20 improve sealing and reduce leakage of the magnetorheological fluid. The rotating shaft 3 provides rotational support for the internal components.

[0040] In this embodiment, the inner cylinder body 2 includes a second wall plate 201 and two second cover plates 202 threadedly engaged with the openings at both ends of the second wall plate 201. The second cover plate 202 is provided with a third through hole 203, a liquid injection hole 204, an exhaust hole 205, a plurality of second guide grooves 206, and a plurality of positioning grooves 207 interconnecting the second guide grooves 206. The rotating shaft 3 is mounted within the third through hole 203, the magnetic module 7 slides within the second guide groove 206, and the end of the guide plate 13 away from the magnetic module 7 slides within the positioning groove 207. The magnetic module 7 slides within the second guide groove 206, and the end of the guide plate 13 extends into the positioning groove 207. The rotating shaft 3 passes through the third through hole 203 and drives the inertia block 4 to rotate. The guide grooves of the inner cylinder body 2 cooperate with the positioning grooves 207 to further limit the range of movement of the guide plate 13. The stepped groove design enhances the stability of the structure.

[0041] In this embodiment, a plurality of first resistance magnetic strips 6 and a plurality of second resistance magnetic strips 5 are installed between the two second cover plates 202. Both the first resistance magnetic strips 6 and the second resistance magnetic strips 5 are arc-shaped, and the first resistance magnetic strips 6 are longer than the second resistance magnetic strips 5. The first resistance magnetic strips 6 and the second resistance magnetic strips 5 are arranged in parallel and arranged in a stepped pattern. This stepped pattern of the first resistance magnetic strips 6 and the second resistance magnetic strips 5 causes the magnetorheological fluid to flow through the magnetic strips, which is affected by the magnetic fields of the different lengths, changing the damping force. The stepped arrangement of the arc-shaped resistance magnetic strips extends the flow path of the magnetorheological fluid, and the parallel arrangement optimizes the magnetic circuit distribution, improving the energy dissipation efficiency of the damper.

[0042] In this embodiment, the two second cover plates 202 are provided with a plurality of second placement slots 104 and a plurality of third placement slots 105 on the opposing inner sides. The two ends of the first resistive magnetic tape 6 are respectively located within the two opposing third placement slots 105, and the two ends of the second resistive magnetic tape 5 are respectively located within the two opposing second placement slots 104. The two ends of the first resistive magnetic tape 6 and the second resistive magnetic tape 5 are respectively fixed within the third placement slots 105 and the second placement slots 104, forming a stable magnetic circuit framework. The fixing structure of the second placement slots 104 and the third placement slots 105 improves the stability of the installation of the first resistive magnetic tape 6 and the second resistive magnetic tape 5, reduces magnetic short circuits or magnetic leakage, and facilitates the replacement of resistive magnetic tapes of different lengths according to damping requirements.

[0043] In this embodiment, multiple inertia blocks 4 are fixed to the rotating shaft 3 and located between the two second cover plates 202. The rotating shaft 3 drives the inertia blocks 4 to rotate, generating inertial forces that, combined with the damping force of the magnetorheological fluid, enhance the vibration reduction effect. The inertia blocks 4 amplify the damper's response to high-frequency vibrations through the inertial effect, making it particularly suitable for sudden impact loads. Combined with the magnetorheological damping effect, this broadens the damper's operating frequency range.

[0044] In this embodiment, fourth placement slots 23 are defined on the opposing inner sides of the two positioning plates 19. A first fixing rod is secured within the fourth placement slots 23. Two fixing blocks 25 are secured to the outer sidewall of the annular plate 27, with a second fixing rod secured between the two fixing blocks 25. A fourth through-hole and a fifth through-hole are defined at each end of the rotating plate 26. The first fixing rod is positioned within the fourth through-hole, and the second fixing rod is positioned within the fifth through-hole. The rotating plate 26 is respectively positioned over the first and second fixing rods through the fourth and fifth through-holes, rotating. This allows the rotational motion of the annular plate 27 to be converted into linear motion of the positioning plate 19. The hinged structure enhances the flexibility of the rotating plate 26's transmission.

[0045] Working principle:

[0046] Assembly of the inner cylinder 2: Install the two second cover plates 202 at the openings at both ends of the second wall plate 201 through threaded engagement, tighten the threads to secure, install the resistance tapes in the second placement grooves 104 and the third placement grooves 105 opened on the opposite inner sides of the two second cover plates 202, place the two ends of the second resistance tape 5 respectively into the two opposite second placement grooves 104, and place the two ends of the first resistance tape 6 respectively into the two opposite third placement grooves 105. The first resistance tape 6 and the second resistance tape 5 are arranged parallel to each other and are distributed in a ladder pattern.

[0047] Installation of the inertia blocks 4: Fix multiple inertia blocks 4 to the portion of the rotating shaft 3 between the two second cover plates 202. The inertia blocks 4 must be evenly distributed on the rotating shaft 3 to ensure balanced rotation.

[0048] Installation of the magnetic conductive modules: Place the magnetic conductive modules 7 into the inner cylinder body 2 in sequence, so that the magnetic conductive modules 7 slide and fit in the second guide groove 206. At the same time, the outer portion of the magnetic conductive module 7 must correspond to the first guide groove 106 of the outer cylinder body 1. A rotating rod 10 is inserted into each magnetic conductive module 7 so that the rotating rod 10 and the magnetic conductive module 7 rotate and fit together. Both ends of the rotating rod 10 extend out of the magnetic conductive module 7 respectively. A rotating disk 8 is fixed at the end of the rotating rod 10 away from the magnetic conductive module 7. The outer diameter of the rotating disk 8 is smaller than the inner diameter of the annular plate 27 to facilitate the subsequent installation of the annular plate 27.

[0049] Installation of the guide plate 13: A toothed plate 15 is fixed on the opposite inner sides of two adjacent guide plates 13. The toothed plate 15 is perpendicular to the guide plate 13. A gear 29 is installed between the two toothed plates 15 so that the gear 29 is meshed with the toothed plates 15 on both sides. In the threaded hole 12 opened on the gear 29, the end of the rotating rod 10 close to the toothed plate 15 is threadedly matched with the threaded hole 12 through the first external thread, so that when the rotating rod 10 rotates, it can drive the gear 29 and the toothed plate 15 to move. Two first limiting blocks 14 are fixed on the side of the guide plate 13 close to the magnetic conductive module 7. The first limiting block 14 is inserted into the first limiting groove 11 of the magnetic conductive module 7 so that the guide plate 13 can slide along the first limiting groove 11. The end of the guide plate 13 away from the magnetic conductive module 7 is inserted into the positioning groove 207 of the second cover plate 202 on the inner cylinder body 2, so that the guide plate 13 is limited by the positioning groove 207 when it moves;

[0050] Installation of the arc plate 24: Two second limit blocks 18 are fixed on the side of the positioning plate 19 close to the guide plate 13, and the second limit blocks 18 are inserted into the second limit groove 17 of the magnetic conductive module 7 so that the positioning plate 19 can slide along the second limit groove 17. A spring 22 is installed between the grooves 21 opened on the opposite inner sides of the two adjacent second limit blocks 18. The two ends of the spring 22 are respectively fixed in the grooves 21 to provide elastic reset force for the positioning plate 19. The first fixing rod is fixed in the fourth placement groove 23 opened on the opposite inner side of the positioning plate 19 for connecting the rotating plate 26, two fixing blocks 25 are fixed to the outer wall of the annular plate 27, and a second fixing rod is fixed between the fixing blocks 25. The two ends of the rotating plate 26 are respectively sleeved on the first fixing rod and the second fixing rod through the fourth through hole and the fifth through hole to form a rotating connection. The annular plate 27 is sleeved on the second end of the rotating rod 10 extending from the magnetic conductive module 7, so that the internal thread of the annular plate 27 is threadedly engaged with the second external thread of the arc-shaped plate 24. The ends of the two adjacent rotating plates 26 are rotatably engaged with the arc-shaped plate 24, so that the arc-shaped plate 24 can move radially with the rotation of the annular plate 27;

[0051] Assemble the outer cylinder 1 and the inner cylinder 2: Insert the assembled inner cylinder 2 into the outer cylinder 1 to form a cavity 28 between the inner cylinder 2 and the outer cylinder 1. Pass the rotating shaft 3 through the third through hole 203 of the second cover plate 202 of the inner cylinder 2, with the inertia block 4 located between the two second cover plates 202. Check whether the magnetic conductive module 7 slides smoothly with both the first guide groove 106 of the outer cylinder 1 and the second guide groove 206 of the inner cylinder 2.

[0052] Sealing and injection: Inject magnetorheological fluid into the cavity 28 through the injection hole 204 on the second cover plate 202 of the inner cylinder body 2. After injection, exhaust air through the exhaust hole 205 to eliminate bubbles in the cavity 28. Check the sealing effect between the rubber pad 20 and the first guide groove 106 to reduce magnetorheological fluid leakage.

[0053] Function debugging: Manually rotate the rotating disk 8 to observe whether the movement of the guide plate 13 and the positioning plate 19 is synchronous and smooth, whether the spring 22 is reset normally, check whether the radial movement of the arc plate 24 when rotating with the annular plate 27 is flexible, and whether it correctly matches the magnetorheological fluid action area, and test the balance of the inertia block 4 when the rotating shaft 3 drives the rotation to ensure that there is no abnormal vibration.

[0054] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention, which have the same or similar technical solutions as the present invention, should be understood to fall within the scope of protection of the present invention. The technologies, shapes, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. An adjustable high-output magnetorheological damper applied to building structures, characterized in that: include: An outer cylinder body (1), wherein an inner cylinder body (2) is sleeved inside the outer cylinder body (1), and a cavity (28) is formed between the inner cylinder body (2) and the outer cylinder body (1); A plurality of magnetic conductive modules (7) are slidably engaged in the inner cylinder body (2), a rotating rod (10) is rotatably engaged in the magnetic conductive module (7), the first end of the rotating rod (10) extending out of the magnetic conductive module (7) is engaged with two guide plates (13), the guide plate (13) is slidably engaged on one side of the magnetic conductive module (7), the other side of the magnetic conductive module (7) is elastically engaged with two positioning plates (19), the relative inner sides of the two positioning plates (19) are rotatably engaged with a rotating plate (26), the ends of the two adjacent rotating plates (26) are rotatably engaged with an arc plate (24), and the second end of the rotating rod (10) extending out of the magnetic conductive module (7) is sleeved with an annular plate (27) threadedly engaged with the arc plate (24).

2. The adjustable high-output magnetorheological damper for use in building structures according to claim 1, characterized in that: A toothed plate (15) is fixed on the opposite inner sides of two adjacent guide plates (13), a gear (29) is meshed between the two toothed plates (15), a threaded hole (12) is provided on the gear (29), and a first external thread is provided at the first end of the rotating rod (10) close to the toothed plate (15) and threadedly matched with the threaded hole (12).

3. The adjustable high-output magnetorheological damper for use in building structures according to claim 1, characterized in that: A rotating disk (8) is fixed to the end of the rotating rod (10) away from the magnetic conductive module (7), the outer diameter of the rotating disk (8) is smaller than the inner diameter of the annular plate (27), the inner side wall of the annular plate (27) is provided with an internal thread, and the outer side wall of the arc plate (24) is provided with a second external thread that matches the internal thread.

4. The adjustable high-output magnetorheological damper for use in building structures according to claim 1, characterized in that: A plurality of first limiting grooves (11) are provided on the opposite inner sides of two adjacent magnetic conductive modules (7), and two first limiting blocks (14) are fixed on one side of the guide plate (13) close to the magnetic conductive module (7), and the first limiting blocks (14) are slidably fitted in the first limiting grooves (11).

5. The adjustable high-output magnetorheological damper for building structures according to claim 1, characterized in that: A plurality of second limiting grooves (17) are provided on the relative outer sides of two adjacent magnetic conductive modules (7), two second limiting blocks (18) are fixed on one side of the positioning plate (19) close to the guide plate (13), the second limiting blocks (18) are slidably fitted in the second limiting grooves (17), a groove (21) is provided on the relative inner sides of the two adjacent second limiting blocks (18), and a spring (22) is installed between the two grooves (21).

6. The adjustable high-output magnetorheological damper for use in building structures according to claim 1, characterized in that: The outer cylinder body (1) includes a first wall plate (101) and two first cover plates (102) respectively threadedly engaged with the openings at both ends of the first wall plate (101). The first cover plate (102) is provided with a second through hole (103) and a plurality of first guide grooves (106). The magnetic conductive module (7) is slidably engaged in the first guide groove (106). Rubber pads (20) engaged with the first guide groove (106) are fixed to the relative outer sides of the two positioning plates (19). A rotating shaft (3) is installed between the two second through holes (103).

7. The adjustable high-output magnetorheological damper for use in building structures according to claim 6, characterized in that: The inner cylinder body (2) includes a second wall plate (201) and two second cover plates (202) respectively threadedly engaged with the openings at both ends of the second wall plate (201); the second cover plate (202) is provided with a third through hole (203), a plurality of second guide grooves (206) and a plurality of positioning grooves (207) connected to the second guide grooves (206); the rotating shaft (3) is installed in the third through hole (203); the magnetic conductive module (7) is slidably engaged in the second guide groove (206); and the end of the guide plate (13) away from the magnetic conductive module (7) is slidably engaged in the positioning groove (207).

8. The adjustable high-output magnetorheological damper for use in building structures according to claim 7, characterized in that: A plurality of first blocking tapes (6) and a plurality of second blocking tapes (5) are installed between the two second cover plates (202). The first blocking tapes (6) and the second blocking tapes (5) are both arc-shaped, and the length of the first blocking tapes (6) is greater than the length of the second blocking tapes (5). The first blocking tapes (6) and the second blocking tapes (5) are arranged in parallel and distributed in a stepped manner.

9. The adjustable high-output magnetorheological damper for use in building structures according to claim 8, characterized in that: The two second cover plates (202) are provided with a plurality of second placement slots (104) and a plurality of third placement slots (105) on the opposite inner sides thereof. The two ends of the first resistance tape (6) are respectively located in the two opposite third placement slots (105), and the two ends of the second resistance tape (5) are respectively located in the two opposite second placement slots (104).

10. The adjustable high-output magnetorheological damper for use in building structures according to claim 7, characterized in that: A plurality of inertia blocks (4) are fixed on the rotating shaft (3), and the inertia blocks (4) are located between the two second cover plates (202).

Images