CN210859653U - Combined type buffering energy-absorbing device based on magnetorheological fluid - Google Patents
Combined type buffering energy-absorbing device based on magnetorheological fluid Download PDFInfo
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- CN210859653U CN210859653U CN201921530285.4U CN201921530285U CN210859653U CN 210859653 U CN210859653 U CN 210859653U CN 201921530285 U CN201921530285 U CN 201921530285U CN 210859653 U CN210859653 U CN 210859653U
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- Prior art keywords
- buffer
- magnetorheological fluid
- fixed
- collision energy
- magnetorheological
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 title claims description 39
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000005284 excitation Effects 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model discloses a combined type buffering energy-absorbing device based on magnetorheological suspensions, the device is by base (1), outer sleeve (2), atress board (3), M20 hex bolts (4), M20 hex nut (5), M8 word screw (6), magnetorheological suspensions buffer (7) No. 1, little steel ball (8), collision energy-absorbing cavity (9), buffer spring (10) No. 1, spring coupling board (11), magnetorheological suspensions buffer (12) No. 2, right angle fixed block (13), M30 bolt (14), magnetorheological suspensions buffer (15) No. 3, buffer spring (16) No. 2, piston valve (17), air compensation chamber (18), buffer urceolus (19), sealing washer (20), excitation coil (21), magnetorheological suspensions (22). The combined type buffering energy absorption device combines the magnetorheological buffer with the multi-particle collision energy absorption device, and can adjust the damping force of the buffering device in real time according to the magnitude of external impact force so as to realize the optimal buffering energy absorption effect.
Description
Technical Field
The utility model belongs to the technical field of the buffering energy-absorbing, a combined type buffering energy-absorbing device based on magnetorheological suspensions is related to.
Background
Impact is one of the main forms of movement and is a phenomenon widely existing in nature, the aim of impact research is to reduce the harmful effect of the impact, the impact strength is higher and higher along with the development of engineering equipment towards the direction of high speed and heavy load, and the problem of impact buffering is very important for improving the engineering quality. The impact refers to the motion of the system under transient excitation, and the characteristic of the impact is that the action time of the excitation is far shorter than the motion period of the system, and the impact belongs to a sudden and violent motion. The traditional buffering energy absorption device is mainly made of materials such as rubber or springs, and the like, and the buffering device has the main advantages of simple structure and low cost; the buffer device can only aim at the impact of specific load, and particularly in the occasion with higher requirement, the buffer effect is not ideal, and the application range is greatly limited. Aiming at the defects of the traditional buffer material and the buffer energy-absorbing device, the new material-based buffer energy-absorbing device is developed to provide technical accumulation for the development of the expansion buffer technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, provide a combined type buffering energy-absorbing device based on magnetic current becomes material, it adjusts buffer's damping force in real time according to external impact force size to realize the optimal buffering energy-absorbing effect.
In order to solve the technical problem, the utility model discloses a technical scheme is: 1. a composite buffering energy-absorbing device based on magnetorheological fluid comprises a box body, the magnetorheological buffering device and a multi-particle collision energy-absorbing device; the method is characterized in that: the box body consists of a base (1), an outer sleeve (2), a stress plate (3), an M20 hexagon bolt (4) and an M20 hexagon nut (5); the magnetorheological buffering device consists of an M8 straight screw (6), a right-angle fixing block (13), an M30 bolt (14) and a No. 3 magnetorheological buffer (15); the multi-particle collision energy absorption device is composed of a spring connecting plate (11), an M8 straight screw (6), a No. 1 buffer spring (10), a No. 2 buffer spring (16), a collision energy absorption cavity (9), a small steel ball (8), a No. 1 magnetorheological fluid buffer (7) and a No. 2 magnetorheological fluid buffer (12);
preferably, the base (1) and the outer sleeve (2) are fixedly matched through an M20 hexagon bolt (4) and an M20 hexagon nut (5);
preferably, the outer sleeve (2) is matched with the base (1) through an M20 hexagon bolt (4) and an M20 hexagon nut (5) to protect parts in the device;
preferably, the stress plate (3) is in clearance fit with the outer sleeve (2) and is in contact with the buffer;
preferably, the telescopic rod end of the No. 1 magnetorheological fluid buffer (7) is fixed with the base (1) through an M8 straight screw (6), and the other end of the buffer is fixed with the collision energy-absorbing cavity (9) through welding;
preferably, the small steel ball (8) is placed in the collision energy-absorbing cavity (9), and the energy-absorbing effect is achieved through the free collision of the small steel ball (8) in the collision energy-absorbing cavity (9);
preferably, the upper end of the No. 1 buffer spring (10) is matched with an M8 straight-line screw (6) through a spring connecting plate (11) and is fixed on the stress plate (3), and the other end of the buffer spring is matched with the collision energy-absorbing cavity (9) through welding;
preferably, the telescopic rod end of the No. 2 magnetorheological fluid buffer (12) is fixed on the stress plate (3) through an M8 straight-line screw (6), and the lower end of the buffer is fixed with the collision energy-absorbing cavity (9) through welding;
preferably, the lower end of the No. 2 buffer spring (16) is matched with an M8 straight-line screw (6) through a spring connecting plate (11) and is fixed on the base (1), and the other end of the buffer spring is matched with the collision energy-absorbing cavity (9) through welding;
preferably, the right-angle fixing block (13) is fixed on the stress plate (3) through an M8 straight-line screw (6);
preferably, the upper end of the No. 3 magnetorheological fluid buffer (15) is matched with the right-angle fixed block (13) through an M30 bolt (14) and a nut and is fixed with the stress plate (3), and the lower end of the No. 3 magnetorheological fluid buffer is fixed with the base (1) through an M8 straight-line screw (6) and a gasket;
preferably, the No. 3 magnetorheological fluid buffer (15) consists of a piston valve (17), an air compensation cavity (18), a buffer outer cylinder (19), a sealing ring (20), an excitation coil (21) and magnetorheological fluid (22), and is a main controllable damping force output source of the device.
The utility model has the advantages that the magnetic field intensity is adjusted by changing the current of the magnet exciting coil, so as to control the output damping force of the magneto-rheological damper; by adopting a multi-particle collision device, the energy absorption effect can be achieved through the rigid collision of the small steel ball (8) and the collision energy absorption cavity (7); the two devices are used in parallel and combined, an adjustable damping force can be provided in the collision process, and the energy generated in the collision process is absorbed, so that the vibration damping effect is more ideal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the composite energy-absorbing buffer device;
FIG. 2 is a top view of the composite energy-absorbing buffer device;
FIG. 3 is a cross-sectional view taken along line A-A of the composite energy-absorbing bumper;
fig. 4 is a schematic structural view of the magnetorheological fluid buffer No. 3 in the present invention;
in the figure: 1. the magnetorheological fluid damper comprises a base, 2 outer sleeves, 3 stress plates, 4M 20 hexagonal bolts, 5M 20 hexagonal nuts, 6M 8 straight-line screws, 7.1 magnetorheological fluid dampers, 8 small steel balls, 9 collision energy absorption cavities, 10.1 buffer springs, 11 spring connecting plates, 12.2 magnetorheological fluid dampers, 13 right-angle fixed blocks, 14M 30 bolts, 15.3 magnetorheological fluid dampers, 16.2 buffer springs, 17 piston valves, 18 air compensation cavities, 19 damper outer cylinders, 20 sealing rings, 21 excitation coils and 22 magnetorheological fluids.
Detailed Description
A composite buffering energy-absorbing device based on magnetorheological fluid comprises a box body, the magnetorheological buffering device and a multi-particle collision energy-absorbing device; the method is characterized in that: the box body consists of a base (1), an outer sleeve (2), a stress plate (3), an M20 hexagon bolt (4) and an M20 hexagon nut (5); the magnetorheological buffering device consists of an M8 straight screw (6), a right-angle fixing block (13), an M30 bolt (14) and a No. 3 magnetorheological buffer (15); the multi-particle collision energy absorption device is composed of a spring connecting plate (11), an M8 straight screw (6), a No. 1 buffer spring (10), a No. 2 buffer spring (16), a collision energy absorption cavity (9), a small steel ball (8), a No. 1 magnetorheological fluid buffer (7) and a No. 2 magnetorheological fluid buffer (12);
preferably, the base (1) and the outer sleeve (2) are fixedly matched through an M20 hexagon bolt (4) and an M20 hexagon nut (5);
preferably, the outer sleeve (2) is matched with the base (1) through an M20 hexagon bolt (4) and an M20 hexagon nut (5) to protect parts in the device;
preferably, the stress plate (3) is in clearance fit with the outer sleeve (2) and is in contact with the buffer;
preferably, the telescopic rod end of the No. 1 magnetorheological fluid buffer (7) is fixed with the base (1) through an M8 straight screw (6), and the other end of the buffer is fixed with the collision energy-absorbing cavity (9) through welding;
preferably, the small steel ball (8) is placed in the collision energy-absorbing cavity (9), and the energy-absorbing effect is achieved through the free collision of the small steel ball (8) in the collision energy-absorbing cavity (9);
preferably, the upper end of the No. 1 buffer spring (10) is matched with an M8 straight-line screw (6) through a spring connecting plate (11) and is fixed on the stress plate (3), and the other end of the buffer spring is matched with the collision energy-absorbing cavity (9) through welding;
preferably, the telescopic rod end of the No. 2 magnetorheological fluid buffer (12) is fixed on the stress plate (3) through an M8 straight-line screw (6), and the lower end of the buffer is fixed with the collision energy-absorbing cavity (9) through welding;
preferably, the lower end of the No. 2 buffer spring (16) is matched with an M8 straight-line screw (6) through a spring connecting plate (11) and is fixed on the base (1), and the other end of the buffer spring is matched with the collision energy-absorbing cavity (9) through welding;
preferably, the right-angle fixing block (13) is fixed on the stress plate (3) through an M8 straight-line screw (6);
preferably, the upper end of the No. 3 magnetorheological fluid buffer (15) is matched with the right-angle fixed block (13) through an M30 bolt (14) and a nut and is fixed with the stress plate (3), and the lower end of the No. 3 magnetorheological fluid buffer is fixed with the base (1) through an M8 straight-line screw (6) and a gasket;
preferably, the No. 3 magnetorheological fluid buffer (15) consists of a piston valve (17), an air compensation cavity (18), a buffer outer cylinder (19), a sealing ring (20), an excitation coil (21) and magnetorheological fluid (22), and is a main controllable damping force output source of the device.
The utility model discloses a concrete theory of operation and implementation do: the device is arranged below a required buffer, and when a stress plate (3) of the device is impacted, a No. 1 buffer spring (10) and a No. 2 buffer spring (16) are compressed to provide a buffer effect and store external energy; meanwhile, the magnet exciting coils in the magnetorheological fluid buffer No. 1 (7), the magnetorheological fluid buffer No. 2 (12) and the magnetorheological fluid buffer No. 3 (15) are electrified to generate a magnetic field, and the magnetorheological fluid in the magnetic field generates real-time adjustable yield stress to provide controllable damping force for the device; the rigid small ball (8) in the collision energy-absorbing cavity (9) collides with the cavity to absorb the energy generated when the device is impacted; the utility model discloses can adjust the size of electric current according to external impact force size for excitation coil produces the not magnetic field of equidimension, with the size of this control magneto rheological buffer's damping force, cooperates the collision energy-absorbing device of rigidity bobble (8) simultaneously, realizes the optimal buffering energy-absorbing effect with this.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (1)
1. A composite buffering energy-absorbing device based on magnetorheological fluid comprises a box body, the magnetorheological buffering device and a multi-particle collision energy-absorbing device; the method is characterized in that: the box body consists of a base (1), an outer sleeve (2), a stress plate (3), an M20 hexagon bolt (4) and an M20 hexagon nut (5); the magnetorheological buffering device consists of an M8 straight screw (6), a right-angle fixing block (13), an M30 bolt (14) and a No. 3 magnetorheological buffer (15); the multi-particle collision energy absorption device is composed of a spring connecting plate (11), an M8 straight screw (6), a No. 1 buffer spring (10), a No. 2 buffer spring (16), a collision energy absorption cavity (9), a small steel ball (8), a No. 1 magnetorheological fluid buffer (7) and a No. 2 magnetorheological fluid buffer (12); preferably, the base (1) and the outer sleeve (2) are fixedly matched through an M20 hexagon bolt (4) and an M20 hexagon nut (5); preferably, the outer sleeve (2) is matched with the base (1) through an M20 hexagon bolt (4) and an M20 hexagon nut (5) to protect parts in the device; preferably, the stress plate (3) is in clearance fit with the outer sleeve (2) and is in contact with the buffer; preferably, the telescopic rod end of the No. 1 magnetorheological fluid buffer (7) is fixed with the base (1) through an M8 straight screw (6), and the other end of the buffer is fixed with the collision energy-absorbing cavity (9) through welding; preferably, the small steel ball (8) is placed in the collision energy-absorbing cavity (9), and the energy-absorbing effect is achieved through the free collision of the small steel ball (8) in the collision energy-absorbing cavity (9); preferably, the upper end of the No. 1 buffer spring (10) is matched with an M8 straight-line screw (6) through a spring connecting plate (11) and is fixed on the stress plate (3), and the other end of the buffer spring is matched with the collision energy-absorbing cavity (9) through welding; preferably, the telescopic rod end of the No. 2 magnetorheological fluid buffer (12) is fixed on the stress plate (3) through an M8 straight-line screw (6), and the lower end of the buffer is fixed with the collision energy-absorbing cavity (9) through welding; preferably, the lower end of the No. 2 buffer spring (16) is matched with an M8 straight-line screw (6) through a spring connecting plate (11) and is fixed on the base (1), and the other end of the buffer spring is matched with the collision energy-absorbing cavity (9) through welding; preferably, the right-angle fixing block (13) is fixed on the stress plate (3) through an M8 straight-line screw (6); preferably, the upper end of the No. 3 magnetorheological fluid buffer (15) is matched with the right-angle fixed block (13) through an M30 bolt (14) and a nut and is fixed with the stress plate (3), and the lower end of the No. 3 magnetorheological fluid buffer is fixed with the base (1) through an M8 straight-line screw (6) and a gasket; preferably, the No. 3 magnetorheological fluid buffer (15) consists of a piston valve (17), an air compensation cavity (18), a buffer outer cylinder (19), a sealing ring (20), an excitation coil (21) and magnetorheological fluid (22), and is a main controllable damping force output source of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921530285.4U CN210859653U (en) | 2019-09-10 | 2019-09-10 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921530285.4U CN210859653U (en) | 2019-09-10 | 2019-09-10 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
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|---|---|
| CN210859653U true CN210859653U (en) | 2020-06-26 |
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|---|---|---|---|
| CN201921530285.4U Expired - Fee Related CN210859653U (en) | 2019-09-10 | 2019-09-10 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
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| CN (1) | CN210859653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671462A (en) * | 2019-09-10 | 2020-01-10 | 浙江师范大学 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
| CN114607727A (en) * | 2022-03-09 | 2022-06-10 | 浙江师范大学 | Magnetorheological fluid automobile bumper |
-
2019
- 2019-09-10 CN CN201921530285.4U patent/CN210859653U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671462A (en) * | 2019-09-10 | 2020-01-10 | 浙江师范大学 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
| CN110671462B (en) * | 2019-09-10 | 2021-10-08 | 浙江师范大学 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
| CN114607727A (en) * | 2022-03-09 | 2022-06-10 | 浙江师范大学 | Magnetorheological fluid automobile bumper |
| CN114607727B (en) * | 2022-03-09 | 2023-04-07 | 浙江师范大学 | Magnetorheological fluid automobile bumper |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |