CN110552993A - Fan shock absorber based on magneto-rheological effect - Google Patents
Fan shock absorber based on magneto-rheological effect Download PDFInfo
- Publication number
- CN110552993A CN110552993A CN201910960194.2A CN201910960194A CN110552993A CN 110552993 A CN110552993 A CN 110552993A CN 201910960194 A CN201910960194 A CN 201910960194A CN 110552993 A CN110552993 A CN 110552993A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- shell
- damper
- lead channel
- enameled wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 title claims abstract description 18
- 230000035939 shock Effects 0.000 title claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
Abstract
The invention relates to a fan shock absorber based on a magneto-rheological effect. The device mainly utilizes the magneto-rheological effect to absorb shock of a fan and mainly comprises a lower shell, a damper, an upper shell, a first lead channel, a nut, a bolt, a second lead channel, a sealing ring, a protective sleeve, a piston rod, an enameled wire, a spring, magneto-rheological fluid and a damper shell; the damper shell and the lower shell are connected through threads for installation; the enameled wire is arranged on the piston rod, and copper wires at two ends of the enameled wire sequentially pass through the second lead channel and the first lead channel; the spring is arranged at the bottom end of the piston rod and the bottom hole of the damper shell; the top of the piston rod is assembled with the upper shell in a transition fit mode; the bolt is in threaded connection with the nut and the upper shell. The invention realizes the shock absorption of the fan by using the damping force controllable by the magnetic field of the magnetorheological fluid, and the response time of the shock absorption is millisecond level and the effect is obvious.
Description
Technical Field
The invention relates to the field of fan shock absorbers, in particular to a fan shock absorber based on a magneto-rheological effect.
Background
Fans have been widely used in various industrial fields as a general machine. However, the fan belongs to one type of rotary machinery, has a large volume and has an obvious vibration problem in the use process. In order to solve the problem of premature equipment damage caused by vibration during the rotation of the fan, patent No. 2017214131708 proposes a solution using a damping spring shock absorber, which mainly uses a spring to absorb shock, but because the spring itself has the disadvantages of fixed stiffness, slow response, easy fatigue damage, etc., the method for implementing the fan shock absorber using the damping spring still needs to be further improved. The magnetorheological fluid belongs to an intelligent material of magnetic control fluid, has the characteristics of variable viscosity, controllable mechanical property and millisecond response, and can be better applied to the field of fan shock absorption. The invention is provided for improving the further damping effect of the fan.
Disclosure of Invention
The invention aims to provide a fan damper based on a magnetorheological effect, which solves the problem of fan vibration by utilizing the rheological mechanical property of the magnetorheological fluid.
In order to effectively solve the technical problems described above, the present invention is implemented as follows: the device comprises a lower shell 1, a damper 2, an upper shell 3, a first lead channel 4, a nut 5, a bolt 6, a second lead channel 7, a sealing ring 8, a protective sleeve 9, a piston rod 10, an enameled wire 11, a spring 12, magnetorheological fluid 13 and a damper shell 14; 3 threaded holes are formed in the lower shell 1; the 3 dampers 2 are fixedly connected with the lower shell 1 through 3 threads; a first lead channel 4 is designed in the upper shell 3; a second lead channel 7 is designed in the piston rod 10; the first lead channel 4 and the second lead channel 7 are communicated with each other; the damper 2 consists of a damper shell 14, a piston rod 10, a sealing ring 8, a protective sleeve 9, an enameled wire 11, a spring 12 and magnetorheological fluid 13; the enameled wire 11 is arranged on the piston rod 10, and copper wires at two ends of the enameled wire 11 sequentially pass through the second lead channel 7 and the first lead channel 4 and are finally led out of the upper shell 3; the protective sleeve 9 is arranged outside the enameled wire 11 and used for protecting the enameled wire; the magnetorheological fluid 13 is filled in a closed area formed by the damper shell 14, the lower shell 1, the spring 12, the piston rod 10, the protective sleeve 9 and the sealing ring 8; the sealing ring 8 is arranged between the piston rod 10 and the damper shell 14 and is mainly used for preventing the leakage of the magnetorheological fluid 13; the spring 12 is arranged at the bottom end of the piston rod 10 and at the bottom hole of the damper shell 14 and is mainly used for resetting the piston rod 10; the top of the piston rod 10 is assembled with the upper shell 3 in a transition fit mode; the bolt 6 is in threaded connection with the nut 5 and the upper shell 3.
The fan shock absorber based on the magneto-rheological effect has the positive effects that: the damping device realizes the damping of the fan by utilizing the damping force of the magnetorheological fluid with controllable magnetic field, the response time of the damping is millisecond level, and the damping device adopts a mode of jointly damping by a plurality of dampers, so that the damping device has the advantages of more obvious damping effect, longer service life and the like compared with damping by a damping spring.
Drawings
Fig. 1 is an overall appearance diagram of a fan damper based on a magnetorheological effect.
FIG. 2 is a partial structure view of a fan damper based on a magnetorheological effect.
FIG. 3 is a schematic diagram of an internal structure of a damper for a blower based on a magnetorheological effect.
In the figure: 1. the magnetorheological damper comprises a lower shell, 2 a damper, 3 an upper shell, 4 a first lead channel, 5 a nut, 6 a bolt, 7 a second lead channel, 8 a sealing ring, 9 a protective sleeve, 10 a piston rod, 11 an enameled wire, 12 a spring, 13 magnetorheological fluid and 14 a damper shell.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In fig. 3, the fan damper based on the magnetorheological effect of the invention mainly comprises a lower shell 1, a damper 2, an upper shell 3, a first lead channel 4, a nut 5, a bolt 6, a second lead channel 7, a seal ring 8, a protective sleeve 9, a piston rod 10, an enameled wire 11, a spring 12, magnetorheological fluid 13 and a damper shell 14; 3 threaded holes are formed in the lower shell 1; the 3 dampers 2 are fixedly connected with the lower shell 1 through 3 threads; a first lead channel 4 is designed in the upper shell 3; a second lead channel 7 is designed in the piston rod 10; the first lead channel 4 and the second lead channel 7 are communicated with each other; the damper 2 consists of a damper shell 14, a piston rod 10, a sealing ring 8, a protective sleeve 9, an enameled wire 11, a spring 12 and magnetorheological fluid 13; the enameled wire 11 is arranged on the piston rod 10, and copper wires at two ends of the enameled wire 11 sequentially pass through the second lead channel 7 and the first lead channel 4 and are finally led out of the upper shell 3; the protective sleeve 9 is arranged outside the enameled wire 11 and used for protecting the enameled wire; the magnetorheological fluid 13 is filled in a closed area formed by the damper shell 14, the lower shell 1, the spring 12, the piston rod 10, the protective sleeve 9 and the sealing ring 8; the sealing ring 8 is arranged between the piston rod 10 and the damper shell 14 and is mainly used for preventing the leakage of the magnetorheological fluid 13; the spring 12 is arranged at the bottom end of the piston rod 10 and at the bottom hole of the damper shell 14 and is mainly used for resetting the piston rod 10; the top of the piston rod 10 is assembled with the upper shell 3 in a transition fit mode; the bolt 6 is in threaded connection with the nut 5 and the upper shell 3.
The working principle of the specific implementation mode of the fan shock absorber based on the magneto-rheological effect is as follows: when the fan needs to avoid shock, the fan base can be arranged between the bolt 6 and the nut 5; when the shock absorber bears the downward pressure of the fan base, the enameled wire 11 inside the damper 2 is immediately electrified and generates a magnetic field, the magnetorheological fluid 13 is converted from Newtonian fluid into non-Newtonian fluid, the viscosity is high rapidly, so that the damping force applied when the piston rod 10 moves downward is increased rapidly, the directions of the damping force and the spring force are upward, the downward pressure is counteracted, the shock absorption effect is achieved, and the response time is millisecond.
Claims (2)
1. A fan shock absorber based on magneto-rheological effect is characterized in that: the magnetorheological fluid damper consists of a lower shell, a damper, an upper shell, a first lead channel, a nut, a bolt, a second lead channel, a sealing ring, a protective sleeve, a piston rod, an enameled wire, a spring, magnetorheological fluid and a damper shell; the method is characterized in that: three threaded holes are formed in the lower shell (1); the three dampers (2) are fixedly connected with the lower shell (1) through three threads; a first lead channel (4) is designed in the upper shell (3); a second lead channel (7) is designed in the piston rod (10); the first lead channel (4) and the second lead channel (7) are communicated with each other; the damper (2) consists of a damper shell (14), a piston rod (10), a sealing ring (8), a protective sleeve (9), an enameled wire (11), a spring (12) and magnetorheological fluid (13); the enameled wire (11) is arranged on the piston rod (10), and copper wires at two ends of the enameled wire (11) sequentially pass through the second lead channel (7) and the first lead channel (4) and are finally led out of the upper shell (3); the protective sleeve (9) is arranged outside the enameled wire (11) and used for protecting the enameled wire; the magnetorheological fluid (13) is filled in a closed area formed by the damper shell (14), the lower shell (1), the spring (12), the piston rod (10), the protective sleeve (9) and the sealing ring (8); the sealing ring (8) is arranged between the piston rod (10) and the damper shell (14) and is mainly used for preventing the leakage of the magnetorheological fluid (13); the spring (12) is arranged at the bottom end of the piston rod (10) and the bottom hole of the damper shell (14) and is mainly used for resetting the piston rod (10); the top of the piston rod (10) is assembled with the upper shell (3) in a transition fit mode; and the bolt (6) is in threaded connection with the nut (5) and the upper shell (3).
2. The blower damper based on magnetorheological effect as claimed in claim 1, characterized in that: the piston rod (10) is made of JL-37B and has good magnetic conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960194.2A CN110552993A (en) | 2019-10-12 | 2019-10-12 | Fan shock absorber based on magneto-rheological effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960194.2A CN110552993A (en) | 2019-10-12 | 2019-10-12 | Fan shock absorber based on magneto-rheological effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110552993A true CN110552993A (en) | 2019-12-10 |
Family
ID=68742573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910960194.2A Pending CN110552993A (en) | 2019-10-12 | 2019-10-12 | Fan shock absorber based on magneto-rheological effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110552993A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI794040B (en) * | 2022-03-09 | 2023-02-21 | 英業達股份有限公司 | Server chassis |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020044445A (en) * | 2000-12-06 | 2002-06-15 | 밍 루 | Shock absorber using magnetorheological fluid |
| JP2005293687A (en) * | 2004-03-31 | 2005-10-20 | Clarion Co Ltd | Onboard media recording/reproducing device |
| CN202021499U (en) * | 2011-03-30 | 2011-11-02 | 嘉兴学院 | Semi-automatic machine tool vibration isolation device based on magneto-rheological damping technology |
| CN103148157A (en) * | 2012-07-19 | 2013-06-12 | 吉林大学 | Multistage extrusion-type magneto-rheological damper |
| CN104791411A (en) * | 2015-04-20 | 2015-07-22 | 上海工程技术大学 | High-sensitivity vibration isolation platform based on linkage type magnetorheological fluid dampers |
| CN205331303U (en) * | 2015-11-09 | 2016-06-22 | 杨文元 | Spring shock absorber |
| CN207485930U (en) * | 2017-10-30 | 2018-06-12 | 上海通用风机股份有限公司 | A kind of wind turbine damping spring damper |
| CN210686828U (en) * | 2019-10-12 | 2020-06-05 | 浙江师范大学 | Fan shock absorber based on magneto-rheological effect |
-
2019
- 2019-10-12 CN CN201910960194.2A patent/CN110552993A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020044445A (en) * | 2000-12-06 | 2002-06-15 | 밍 루 | Shock absorber using magnetorheological fluid |
| JP2005293687A (en) * | 2004-03-31 | 2005-10-20 | Clarion Co Ltd | Onboard media recording/reproducing device |
| CN202021499U (en) * | 2011-03-30 | 2011-11-02 | 嘉兴学院 | Semi-automatic machine tool vibration isolation device based on magneto-rheological damping technology |
| CN103148157A (en) * | 2012-07-19 | 2013-06-12 | 吉林大学 | Multistage extrusion-type magneto-rheological damper |
| CN104791411A (en) * | 2015-04-20 | 2015-07-22 | 上海工程技术大学 | High-sensitivity vibration isolation platform based on linkage type magnetorheological fluid dampers |
| CN205331303U (en) * | 2015-11-09 | 2016-06-22 | 杨文元 | Spring shock absorber |
| CN207485930U (en) * | 2017-10-30 | 2018-06-12 | 上海通用风机股份有限公司 | A kind of wind turbine damping spring damper |
| CN210686828U (en) * | 2019-10-12 | 2020-06-05 | 浙江师范大学 | Fan shock absorber based on magneto-rheological effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI794040B (en) * | 2022-03-09 | 2023-02-21 | 英業達股份有限公司 | Server chassis |
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