CN209799054U - Lead extrusion magnetorheological combined energy consumption device - Google Patents
Lead extrusion magnetorheological combined energy consumption device Download PDFInfo
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- CN209799054U CN209799054U CN201920175317.7U CN201920175317U CN209799054U CN 209799054 U CN209799054 U CN 209799054U CN 201920175317 U CN201920175317 U CN 201920175317U CN 209799054 U CN209799054 U CN 209799054U
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Abstract
The utility model relates to a lead extrusion magneto-rheological combined energy consumption device, which comprises a circular magnetic conduction piston rod, wherein the outer surface and the inner surface of the middle part of the piston rod are respectively provided with a piston and an extrusion shaft axon along the circumferential direction, an annular groove is carved in the piston, and an excitation coil is wound in the groove along the circumferential direction; the outside of the piston rod is coaxially provided with a circular magnetic conduction cylinder barrel, the upper end and the lower end of the circular magnetic conduction cylinder barrel are respectively provided with an upper circular cover plate and a lower circular cover plate, a circular cavity is enclosed among the piston rod, the piston, the cylinder barrel, the upper circular cover plate and the lower circular cover plate, and magnetorheological fluid is filled in the cavity; a circular steel column is coaxially arranged inside the piston rod, an upper circular cover plate, a lower circular cover plate and a lower connecting flange plate are sequentially fixed on the upper part, the middle part, the lower part and the lower part of the steel column, an annular cavity is enclosed among the piston rod, the extruding shaft axon, the steel column, the upper circular cover plate and the lower circular cover plate, and lead is filled in the cavity; an upper connecting flange is fixed on the upper part of the piston rod. The damping force of the device can be continuously adjusted in a large range, and the reliability is high.
Description
Technical Field
The utility model belongs to the technical field of building structure power consumption shock attenuation, concretely relates to plumbous extrusion magneto rheological combination power consumption device.
Background
Lead is a softer metal, has better malleability, lower rigidity and better flexibility, the crystal of lead is a face-core cubic crystal structure, and the sliding system and the sliding direction are more; therefore, lead can absorb larger energy in the deformation process and has good plastic deformation performance. The lead extrusion damper is a passive energy dissipater with simple structure, low manufacturing cost and high reliability, because the recrystallization temperature of lead is lower than 20 ℃, when lead deforms due to extrusion at room temperature, dynamic recovery and recrystallization occur, and the tissue structure and the performance of lead are recovered to the state before deformation through recovery and recrystallization. Thus, the lead extrusion damper is the only metal damper that undergoes plastic cycling without cumulative fatigue and does not fail after an earthquake. However, the damping force of the conventional lead squeeze damper is not adjustable, and the damping control effect thereof is not ideal.
The magneto-rheological damper is a semi-active control device manufactured by utilizing the rapid flow-solid inversion characteristic of magneto-rheological fluid in a magnetic field, and has the advantages of rapid response, low energy consumption, continuously adjustable damping force and the like, and the magneto-rheological damper mainly adjusts the damping force by adjusting the magnitude of input current (or voltage). However, under the action of an earthquake, an external power supply or a control system of the magnetorheological damper is very easily damaged, once the external power supply or the control system fails, the magnetorheological damper completely loses the energy consumption and shock absorption effects, and the reliability of the magnetorheological damper is to be further improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies in the prior art, the utility model aims to provide a lead extrusion magneto-rheological combination energy consumption device, this energy consumption device's characteristics are: the damping force is provided by the shearing yield force of the magnetorheological fluid and the extrusion force of the lead, and the shearing yield force of the magnetorheological fluid can be adjusted by changing the current intensity in the coil, so that the tonnage of the damping force of the device is larger and can be continuously adjusted within a larger damping force range; in addition, even if the magnetorheological fluid loses energy consumption effect due to too small shear yield force when an external power supply or a control system fails, the lead metal of the device can still normally consume energy and provide damping force, and therefore the reliability is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a lead extrusion magneto-rheological combined energy consumption device, which comprises a circular magnetic conduction piston rod, wherein a piston is arranged on the outer surface of the middle part of the piston rod along the circumferential direction, an extrusion shaft axon is arranged on the inner surface of the middle part of the piston rod along the circumferential direction, two annular grooves are carved in the piston along the circumferential direction, the cross sections of the annular grooves are rectangular, excitation coils are wound inside the two annular grooves along the circumferential direction, and lead heads of the excitation coils are led out from a circular pore channel arranged inside the piston rod; a circular magnetic conduction cylinder barrel is coaxially arranged outside the piston rod, an upper circular cover plate is arranged at the upper end of the circular magnetic conduction cylinder barrel, a lower circular cover plate is arranged at the lower end of the circular magnetic conduction cylinder barrel, a circular cavity is defined among the outer surface of the piston rod, the outer surface of the piston, the inner surface of the cylinder barrel, the lower surface of the upper circular cover plate and the upper surface of the lower circular cover plate, and magnetorheological fluid is filled in the cavity; a circular steel column capable of bearing tension and pressure is coaxially arranged inside the piston rod, an upper circular cover plate, a lower circular cover plate and a lower connecting flange plate are fixedly connected to the upper portion, the middle lower portion and the lower portion of the circular steel column in sequence, an annular cavity is defined among the inner surface of the piston rod, the outer surface of the extrusion shaft axon, the outer surface of the circular steel column, the lower surface of the upper circular cover plate and the upper surface of the lower circular cover plate, and lead metal is filled in the cavity; an upper connecting flange plate is fixedly arranged at the upper part of the piston rod, and a circular connecting cylinder is fixedly arranged between the lower circular cover plate and the lower connecting flange plate.
According to the novel lead extrusion magnetorheological combined energy consumption device, the piston rod is a circular magnetic conduction piston rod, the piston is arranged on the outer surface of the middle part of the piston rod along the circumferential direction, and the extrusion shaft axon is arranged on the inner surface of the middle part of the piston rod along the circumferential direction.
According to the novel lead extrusion magnetorheological combined energy consumption device, the upper circular cover plate, the lower circular cover plate and the lower connecting flange plate are fixedly connected together through the circular steel column, the circular magnetic conduction cylinder barrel and the circular connecting cylinder, and the components have the same displacement when moving along the rotational symmetry axis.
The utility model has the advantages that: the damping force is provided by the shearing yield force of the magnetorheological fluid and the extrusion force of the lead, the damping force is large, the energy consumption capability is strong, the damping force is continuously adjustable in a large range, and the response of the civil engineering structure under the action of a large earthquake can be better inhibited; even if an external power supply or a control system fails, the magnetorheological fluid loses energy consumption capacity due to too small shear yield force, and the lead metal of the device can still normally consume energy and provide damping force, so that the device has high reliability.
Drawings
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
fig. 3 is a schematic sectional view of B-B in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a lead extrusion magneto-rheological combined energy dissipation device, which comprises a circular magnetic conduction piston rod 1, wherein a piston 2 and an extrusion shaft axon 3 are respectively arranged on the outer surface and the inner surface of the middle part of the circular magnetic conduction piston rod 1 along the circumferential direction, two annular grooves are carved in the piston 2 along the circumferential direction, the cross section of each annular groove is rectangular, an excitation coil 4 is wound inside the two annular grooves along the circumferential direction, and the lead head of the excitation coil 4 is led out from a circular pore passage 5 arranged inside the piston rod 1; a circular magnetic conduction cylinder barrel 6 is coaxially arranged outside the piston rod 1, an upper circular cover plate 7 and a lower circular cover plate 8 are fixedly connected to the upper end and the lower end of the circular magnetic conduction cylinder barrel 6 in sequence, a circular cavity is defined between the outer surface of the piston rod 1, the outer surface of the piston 2, the inner surface of the cylinder barrel 6, the lower surface of the upper circular cover plate 7 and the upper surface of the lower circular cover plate 8, and magnetorheological fluid 9 is filled in the cavity; a circular steel column 10 capable of bearing tension and pressure is coaxially arranged inside the piston rod 1, the upper part, the middle lower part and the lower part of the steel column 10 are fixedly connected with an upper circular cover plate 11, a lower circular cover plate 12 and a lower connecting flange plate 13 respectively, a circular cavity is defined by the inner surface of the piston rod 1, the outer surface of the extrusion shaft axon 3, the outer surface of the circular steel column 10, the lower surface of the upper circular cover plate 11 and the upper surface of the lower circular cover plate 12, and lead metal 14 is filled in the cavity; an upper connecting flange plate 15 is fixedly arranged at the upper part of the piston rod 1, and an annular connecting cylinder 16 is fixedly arranged between the lower annular cover plate 8 and the lower connecting flange plate 13.
According to the lead extrusion magnetorheological combined energy consumption device, the upper circular cover plate 7, the lower circular cover plate 8, the upper circular cover plate 11, the lower circular cover plate 12 and the lower connecting flange plate 13 are fixedly connected together through the circular steel column 10, the circular magnetic conduction cylinder barrel 6 and the circular connecting barrel 16, so that the components have the same displacement when moving along the rotational symmetry axis.
According to the lead extrusion magnetorheological combined energy consumption device, six bolt holes 17 are uniformly drilled on the outer edges, close to the circular shape, of the upper connecting flange plate 15 and the lower connecting flange plate 13.
According to the lead extrusion magnetorheological combined energy consumption device, the annular channel between the outer surface of the piston 2 and the inner surface of the cylinder barrel 6 is a damping channel 18 of magnetorheological fluid.
According to the lead extrusion magnetorheological combined energy consumption device, when current is introduced into the excitation coil 4, magnetic induction lines 19 are generated around the excitation coil 4.
The utility model discloses a theory of operation:
Firstly the utility model discloses an upper portion flange board 15 concreties with certain floor top of building structure, concreties lower part flange board 13 and the bottom of this floor simultaneously, under horizontal earthquake load effect, building structure can produce relative displacement between layer, and relative displacement between layer can convert into the axial displacement between upper portion flange board 15 and lower part flange board 13, because upper portion flange board 15 and piston rod 1 concreties, lower part flange board 13 and upper portion ring shape apron 7, lower part ring shape apron 8, upper portion circular apron 11, lower part circular apron 12, lower part flange board 13, steel column 10, cylinder 6, connecting cylinder 16 fixed connection together, therefore, the axial displacement between upper portion flange board 15 and lower part flange board 13 has been converted into piston rod 1 and cylinder 6, steel column 10, upper portion circular apron 11, Axial displacement between the lower circular cover plates 12, at the moment, the magnetorheological fluid 9 and the lead metal 14 flow upwards or downwards in respective chambers simultaneously, so that damping force and energy dissipation and shock absorption effects are generated simultaneously, seismic energy transmitted into the building structure is effectively consumed, dynamic response of the structure under the action of seismic load is reduced, and energy dissipation capacity of the structure is increased.
Will the utility model discloses excitation coil 4's wire both ends respectively with DC power supply just, the negative pole links to each other, when circular current in excitation coil 4, just can produce magnetic induction line 19 around excitation coil 4, because piston 2, 9 magnetic conductivity of magnetorheological suspensions among cylinder 6 and the damping passageway 18 can be good, therefore, magnetic induction line 19 concentrates the distribution around the excitation coil 4 that figure 1 is shown, and the orientation of magnetorheological suspensions flow in magnetic induction line 19's the orientation and the damping passageway 18 mutually perpendicular, therefore magnetic induction line 19's size can effectively change 9 shearing yield strength of magnetorheological suspensions, just also mean that the size through changing electric current can change the utility model discloses the size of damping force. Even the external power source became invalid, the damping force that magnetorheological suspensions provided was very little, the utility model discloses still can rely on plumbous metal to provide damping force and power consumption ability, consequently have very strong reliability.
while the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (3)
1. A lead extrusion magnetorheological combined energy consumption device is characterized in that: the magnetic conductive piston rod comprises a circular magnetic conductive piston rod (1), wherein a piston (2) is arranged on the outer surface of the middle part of the piston rod (1) along the circumferential direction, an extrusion shaft axis (3) is arranged on the inner surface of the middle part of the piston rod (1) along the circumferential direction, two annular grooves are carved in the piston (2) along the circumferential direction, the cross sections of the annular grooves are rectangular, an excitation coil (4) is wound inside the two annular grooves along the circumferential direction, and a wire guide head of the excitation coil (4) is led out from a circular hole channel (5) arranged inside the piston rod (1); a circular magnetic conduction cylinder barrel (6) is coaxially arranged outside the piston rod (1), an upper circular cover plate (7) is arranged at the upper end of the circular magnetic conduction cylinder barrel (6), a lower circular cover plate (8) is arranged at the lower end of the circular magnetic conduction cylinder barrel (6), a circular cavity is enclosed among the outer surface of the piston rod (1), the outer surface of the piston (2), the inner surface of the circular magnetic conduction cylinder barrel (6), the lower surface of the upper circular cover plate (7) and the upper surface of the lower circular cover plate (8), and magnetorheological fluid (9) is filled in the cavity; a circular steel column (10) capable of bearing tension and pressure is coaxially arranged inside the piston rod (1), an upper circular cover plate (11), a lower circular cover plate (12) and a lower connecting flange plate (13) are fixedly connected to the upper portion, the middle lower portion and the lower portion of the circular steel column (10) in sequence, an annular chamber is defined among the inner surface of the piston rod (1), the outer surface of the extrusion shaft axon (3), the outer surface of the circular steel column (10), the lower surface of the upper circular cover plate (11) and the upper surface of the lower circular cover plate (12), and lead metal (14) is filled in the chamber; an upper connecting flange plate (15) is fixedly arranged on the upper portion of the piston rod (1), and a circular connecting cylinder (16) is fixedly arranged between the lower circular cover plate (8) and the lower connecting flange plate (13).
2. The lead extrusion magnetorheological combined energy consumption device according to claim 1, wherein: the piston rod (1) is a circular magnetic conducting piston rod, a piston (2) is arranged on the outer surface of the middle of the piston rod (1) along the circumferential direction, and an extrusion shaft axon (3) is arranged on the inner surface of the middle of the piston rod (1) along the circumferential direction.
3. The lead extrusion magnetorheological combined energy consumption device according to claim 1, wherein: the upper circular cover plate (7), the lower circular cover plate (8), the upper circular cover plate (11), the lower circular cover plate (12) and the lower connecting flange plate (13) are fixedly connected together through a circular steel column (10), a circular magnetic conduction cylinder barrel (6) and a circular connecting barrel (16), and the components have the same displacement when moving along the rotational symmetry axis of the components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175317.7U CN209799054U (en) | 2019-01-31 | 2019-01-31 | Lead extrusion magnetorheological combined energy consumption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175317.7U CN209799054U (en) | 2019-01-31 | 2019-01-31 | Lead extrusion magnetorheological combined energy consumption device |
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| Publication Number | Publication Date |
|---|---|
| CN209799054U true CN209799054U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920175317.7U Expired - Fee Related CN209799054U (en) | 2019-01-31 | 2019-01-31 | Lead extrusion magnetorheological combined energy consumption device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779060A (en) * | 2019-01-31 | 2019-05-21 | 郑州大学 | A kind of magnetorheological combination energy-consuming device of lead extruding |
| CN111927183A (en) * | 2020-08-20 | 2020-11-13 | 重庆五一高级技工学校(重庆五一技师学院) | Building vibration isolation support |
-
2019
- 2019-01-31 CN CN201920175317.7U patent/CN209799054U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779060A (en) * | 2019-01-31 | 2019-05-21 | 郑州大学 | A kind of magnetorheological combination energy-consuming device of lead extruding |
| CN109779060B (en) * | 2019-01-31 | 2024-05-24 | 郑州大学 | Lead extrusion magneto-rheological combined energy consumption device |
| CN111927183A (en) * | 2020-08-20 | 2020-11-13 | 重庆五一高级技工学校(重庆五一技师学院) | Building vibration isolation support |
| CN111927183B (en) * | 2020-08-20 | 2021-11-26 | 重庆五一高级技工学校(重庆五一技师学院) | Building vibration isolation support |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20210131 |
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| CF01 | Termination of patent right due to non-payment of annual fee |