CN204878514U - Type that shocks resistance owner mixes isolator passively - Google Patents
Type that shocks resistance owner mixes isolator passively Download PDFInfo
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- CN204878514U CN204878514U CN201520320165.7U CN201520320165U CN204878514U CN 204878514 U CN204878514 U CN 204878514U CN 201520320165 U CN201520320165 U CN 201520320165U CN 204878514 U CN204878514 U CN 204878514U
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- shock resistance
- isolator
- cover plate
- iron core
- air bag
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Abstract
The utility model discloses a type that shocks resistance owner mixes isolator passively, including the gasbag isolator, the electromagnetism actuator, the spring shocks resistance, on the gasbag, lower, on the gasbag, lap down, flexible magnetic conduction rubber, the permanent magnet, fin and temperature, acceleration sensor, the electromagnetism actuator, shock resistance the spring mounting in the gasbag isolator, the electromagnetism actuator has armature, the iron core, arrange the permanent magnet on the iron core in, arrange the flexible magnetic conduction rubber on the permanent magnet in, the coil of winding on the iron core, armature is fixed on lower, the spring that shocks resistance dress between the gasbag upper cover plate and the seat of honour or the dress between the electromagnetism actuator is lapped under with. Apron under the gasbag isolator is hugged closely around the iron core and the coil of actuator, the other end to the fin end, and the gasbag isolator installs temperature sensor, acceleration sensor inside. The utility model discloses shock resistance is good, and the reliability is high, and the energy consumption is few, with low costs, occupation space is little, can be used to the high -efficient vibration isolation of industry, civilian, especially naval vessel field mechanical equipment, system.
Description
Technical field
The utility model relates to machinery vibration isolation field, particularly relate to the passive hybrid vibration isolation field of master of machinery, particularly a kind of can load bearing equipment weight, reduce equipment wideband vibration passing, control low frequency spectrum lines vibration, the passive hybrid isolator of a kind of shock resistance type master that prevents equipment from causing actuator configurations to damage because of tilt, wave, impact etc.
Background technique
Control the vibration that machinery causes, making it meet standard-required, is key that is industrial, civilian, particularly ship machinery system.Isolation mounting is adopted to be reduce vibration equipment to transmit one of most effective method.Passive vibration isolation device and piezoelectric actuator, magnetostrictive actuator are installed in series between machinery and pedestal by main passive hybrid vibration isolation device, the wideband vibration of passive vibration isolation device to machinery provides isolation effect, and actuator then effectively controls low frequency spectrum lines vibration realizing.Ship machinery, under special working environment, often can run into inclination, waves and impact the adverse effect brought.When device for vibration insutation suffers external thump, owing to there is no anti-impact isolation mounting, vibration isolator total failure may be caused, and then cause vibration reduction of ship anti-acoustic capability to decline.
Existing " inertial mass type vibration isolation device for motor car engine " (patent No. 200920067893.6), " active vibration insulator " (patent No.: 200610092560.X) adopt rubber vibration isolator to support by device for vibration insutation, single-point mounting type is adopted to be fixed on by vibration isolation target electromagnet inertia quality actuator, control line spectrum vibrates, because the level of integration of active and passive device is lower, there is large, that adaptability the is poor shortcoming that takes up room." air spring superlow frequency vibration isolating method and device based on differential electromagnetic actuator " (patent No. 200610150810.0) adopts that air bag vibration isolator is in parallel with electromagnetic actuator supports precision surface plate and vibration isolation, and level of integration is lower, takes up room large." main passive hybrid isolator " (patent No. 201210198889.X) adopts air bag vibration isolator load bearing equipment weight and the vibration of xegregating unit wideband, vibrated by actuator xegregating unit line spectrum simultaneously, there is anti-vibration performance superior, the advantage such as take up room little, easy for installation, but it does not have special shock resistance design, when device suffers external thump, electromagnetic actuator breakage in main passive hybrid isolator even disabler etc. may be made.
Summary of the invention
The purpose of this utility model is for above-mentioned present situation, aim to provide one and electromagnetic actuator is integrated in air bag vibration isolator inside, can in the vibration of efficient isolation wideband with while effectively controlling low frequency spectrum lines vibration, impulsive load can be absorbed, play buffer function, prevent impact from causing actuator configurations to damage; Have that shock resistance is good, reliability is high, energy consumption is low, level of integration is high, the passive hybrid isolator of shock resistance type master of the advantage such as little that takes up room.
The implementation of the utility model object is, the passive hybrid isolator of a kind of shock resistance type master, electromagnetic actuator, shock resistance spring fitting are in bellows air bag vibration isolator, and shock resistance spring is contained between air bag upper cover plate and the seat of honour or is contained between electromagnetic actuator and lower cover plate; Lower cover plate has pore, string holes, the one end open of pore, string holes is at the outer side surface of lower cover plate, and the other end opening is in the upper surface in elastic sack body at lower cover plate, gas-tight seal socket is welded on string holes external port;
The iron core of described electromagnetic actuator is equipped with permanent magnet, permanent magnet has flexible magnetic conduction rubber, the outer winding around of iron core, armature is fixed on lower seat; Air gap is left, filling flexible magnetic conduction rubber in air gap between armature and permanent magnet;
Radiating fin one end is around the iron core of electromagnetic actuator and coil, and the other end is close to the lower cover plate of bellows bellows air bag vibration isolator, temperature transducer two, acceleration transducer in the bottom and coil of electromagnetic actuator iron core, temperature transducer one side in coil; Acceleration transducer is installed on inside bellows air bag vibration isolator.
Technique effect of the present utility model is as follows:
(1) there is excellent wideband anti-vibration performance.Through the efficient vibration isolation of air bag vibration isolator, the transmission of energy effective attenuation vibrational energy, reduces the power consumption that electromagnetic actuator controls the vibration of remaining line spectrum greatly;
(2) be provided with shock resistance spring between electromagnetic actuator and air bag, during normal work, armature does not contact with the flexible magnetic conduction rubber on actuator permanent magnet, and the ouput force of electromagnetic actuator is stably delivered on air bag cover plate; When by the run-off the straight of supported mechanical equipment, wave or meet with impulsive load time, electromagnetic actuator armature likely collides with the flexible magnetic conduction rubber on permanent magnet, now, spring has been compressed buffer function, can prevent impact from causing actuator configurations to damage, flexible magnetic conduction rubber above permanent magnet also can play buffer function, strengthens the protective action to permanent magnet further, strengthens the shock resistance effect of the passive hybrid isolator of shock resistance type master;
(3) electromagnetic actuator is integrated in air bag vibration isolator, adopt parallel way integrated with air bag vibration isolator, air bag vibration isolator provides reliable support to equipment, electromagnetic actuator is without the need to bearing static load, compared with the series connection vibration isolation pattern that other type actuator is conventional, have that reliability is high, energy consumption is low, cost is low, it is little to take up room, level of integration advantages of higher; Acceleration transducer and the equal accessible site of temperature transducer are in air bag vibration isolator, and installation, wiring are simply, easy to use;
(4) adopt electromagnetic actuator to control line spectrum vibration, there is fast response time, Frequency Response is excellent, force characteristic is good advantage, effectively can control line spectrum vibration, and there is contactless characteristic, vibration short circuit transmission can not be caused;
(5) temperature transducer, velocity transducer, radiating fin have been installed, have made vibration isolator can Real-Time Monitoring working state, added its intelligent and reliability.
The utility model vibration isolation and shock resistance effect are actively significantly, have that shock resistance is good, reliability is high, less energy consumption, cost are low, take up room the advantage such as little, accommodation can be carried out with isolation mounting load change, wideband vibration can be realized and the synchronous of line spectrum vibration effectively controls, can load bearing equipment weight, reduce equipment wideband vibration passing, control low frequency spectrum lines and vibrate, prevent equipment from causing actuator configurations to damage because of tilt, wave, impact etc.; For industry, civilian, the wideband vibration and the line spectrum Vibration Synchronization that are in particular ship domain effectively control the more reliable solution route that a difficult problem provides new.
Accompanying drawing explanation
The structural representation of Fig. 1 to be the utility model be bellows utricule;
Fig. 2 is the structure plan view that the utility model removes upper cover plate;
The structural representation of Fig. 3 to be the utility model be membrane type utricule;
The structural representation of Fig. 4 to be shock resistance spring be spring embodiment;
The structural representation of Fig. 5 to be shock resistance spring be many spring embodiment;
Fig. 6,7,8,9 is the structure plan view for two, three, four, five shock resistance spring Fig. 5 respectively;
Figure 10 is the structural representation of sink radiating fin of the present utility model;
Figure 11 is the structural representation of sink heat dissipating pipe of the present utility model;
Figure 12 is the schematic diagram of the passive hybrid isolator of the utility model shock resistance master.
Embodiment
It is inner that electromagnetic actuator is integrated in bellows air bag vibration isolator by the utility model, can in the vibration of efficient isolation wideband with while effectively controlling low frequency spectrum lines vibration, impulsive load is absorbed by the shock resistance spring be arranged between air bag cover plate and actuator and the flexible magnetic conduction rubber be placed in above permanent magnet, play buffer function, prevent impact from causing actuator configurations to damage.
With reference to the accompanying drawings in detail the utility model is described in detail.
With reference to Fig. 1,2,3, electromagnetic actuator 2, shock resistance spring 18 are installed in bellows air bag vibration isolator 1, and shock resistance spring 18 is contained between air bag upper cover plate 5 and the seat of honour 19 or is contained between electromagnetic actuator 2 and lower cover plate 7.Lower cover plate 7 has pore 10, string holes 11, the one end open of pore, string holes is at the outer side surface of lower cover plate 7, and the other end opening is in the upper surface in elastic sack body at lower cover plate 7, gas-tight seal socket 3 is welded on string holes external port.
The utility model can fill, exit to bellows air bag vibration isolator 1 by pore 10, thus the carrying of adjustment bellows air bag vibration isolator 1 and height.Air bag vibration isolator 1 relies on the air in interior utricule 6 to carry out load capacity, has lightweight, that vibration isolating effect is good advantage.
The iron core 9 of described electromagnetic actuator 2 is equipped with permanent magnet 14, permanent magnet has flexible magnetic conduction rubber 21, the outer winding around 15 of iron core 9, armature 8 is fixed on lower seat 20.Air gap 17 is left, filling flexible magnetic conduction rubber 2 in air gap 17 between armature 8 and permanent magnet 14.
Radiating fin 16 one end is around the iron core 8 of electromagnetic actuator 2 and coil 15, the other end is close to the lower cover plate 7 of air bag vibration isolator 1, temperature transducer 2 12, acceleration transducer 4 are in the bottom of electromagnetic actuator iron core 9 and coil 15, and temperature transducer 1 is inside coil 15.Acceleration transducer 4 is installed on inside air bag vibration isolator 1.
The iron core 9 of described electromagnetic actuator is that mountain font lamination fixedly forms, and armature 8 is that yi word pattern lamination fixedly forms, and the permanent magnet of armature both sides is contrary with the permanent magnet magnetic extreme direction of center pillar, forms the permanent magnetic circuit that two, left and right is closed.Coil, around on the center pillar of mountain font iron core, takes iron core groove width.Time in coil 15 by electric current, also can form the electromagnetic circuit that two, left and right is closed.Due to the electromagnetism magnetic field of actuator and permanent magnetic field, to close degree high, and leakage field is little, has higher electricity-Li conversion efficiency.Electromagnetic actuator armature 8 is parallel with iron core 9 just right, has air gap 17 between iron core and armature, and filling flexible magnetic conduction rubber 21 in air gap, to reduce air gap leakage field, and plays defense of resistance to impact effect to permanent magnet.Filling flexible magnetic conduction rubber 21 in air gap 17, reduces the magnetic resistance of air gap 17, improves electricity-Li conversion efficiency further, reduces actuator power consumption, can also prevent armature 8 and iron core 9 direct collision simultaneously.
With reference to Fig. 4,5, shock resistance effect of the present utility model is realized by shock resistance spring and flexible magnetic conduction rubber, wherein shock resistance spring 18 can be one, two or many, when using installation many shock resistance springs, many shock resistance springs in the mode of certain angle of being separated by by upper, lower seat 19,20 is fixedly mounted between electromagnetic actuator armature 8 and upper cover plate 5, also can be arranged between electromagnetic actuator 2 and lower cover plate 7.Shock resistance spring 18 can use the shock resistance elastic material such as rubber, insulation ester to replace.
Fig. 6,7,8,9 respectively illustrates the installation distribution situation with the shock resistance spring in two, three, four, five shock resistance springs, four kinds of situations, if quantity more, by that analogy, the spring of shock resistance simultaneously also can be arranged between electromagnetic actuator 2 and lower cover plate 7.
Shock resistance spring 18 is fixed by upper and lower seat 19,20, and has certain precompressed.Precompression displacement is x
1, its effective shock resistance displacement is x
2, and x
1+ x
2<x
s, wherein x
sfor the effective compression stroke of spring.X
1with x
2jointly determined by shock resistance displacement and spring effective travel.Armature 8 is connected with lower seat 20 or air bag upper cover plate 5 by bolt, and therefore when armature 8 does not contact with flexible magnetic conduction rubber 21, the ouput force of electromagnetic actuator is stably delivered on air bag upper cover plate 5.When by the run-off the straight of supported mechanical equipment, wave or meet with impulsive load time, the armature 8 of electromagnetic actuator likely collides with the flexible magnetic conduction rubber 21 on the permanent magnet 14 of electromagnetic actuator, now shock resistance spring is compressed, play buffer function, flexible magnetic conduction rubber 21 can strengthen its impact resistance equally.
Described electromagnetic actuator 2 electromagnetic circuit direction is determined according to right hand rule, and after coil 15 coiling direction is determined, electromagnetic circuit direction is determined by current direction.When electromagnetic circuit is identical with permanent magnetic circuit direction, magnetic field in air gap 17 increases, attraction force between iron core 9 and armature 8 increases, otherwise the magnetic field then in air gap 17 reduces, attraction force between iron core 9 and armature 8 reduces, inputting alternating current therefore to coil 15 can drive electromagnetic actuator 2 to produce alternation ouput force, thus completes the task of line spectrum vibration control.
Iron core 9 and armature 8 material of described electromagnetic actuator 2 are silicon steel, and in order to reduce eddy current loss, iron core 9 and armature 8 adopt the silicon steel plate stacking of thick 0.35mm to form; Permanent magnet 14 is made up of Rb-Fe-B material.
Air bag vibration isolator of the present utility model can be bellows air bag vibration isolator 1 (see Fig. 1) or membrane type air bag vibration isolator 24 (see Fig. 3), wherein membrane type air bag vibration isolator 24 is by elastic sack body 25 and be linked to be overall piston shape upper cover plate 22 with utricule and housing shape lower cover plate 23 forms, air bag vibration isolator lower cover plate 23 has pore 10 and string holes 11, and gas-tight seal socket 3 is welded in string holes 11 external port of air bag vibration isolator lower cover plate 23.
With reference to Figure 10,11,12, acceleration transducer 4 of the present utility model, the output terminal of temperature transducer two, one 12,13 and the coil 15 of electromagnetic actuator 2 are connected with gas-tight seal socket 3 by wire, then via plug and wire, acceleration transducer 4 in passive for shock resistance master hybrid isolator and temperature transducer 12 signal are connected with controller, and actuator coil 15 is connected with power amplifier, power amplifier is connected with controller.
Described controller is the controller that related domain is commonly used, the oscillating signal of the lower cover plate 7 measured by controller sense acceleration sensor 4, produce output signal according to adaptive control algorithm, drive electromagnetic actuator 2 by described power amplifier, and then realize line spectrum vibration control.
The utility model can improve actuator radiating efficiency with radiating fin 16.Radiating fin 16 is made up of high thermal conductivity metal grid, and one end is around the iron core 9 of actuator and coil 15, and the other end is close to air bag vibration isolator lower cover plate 7.Also alternative radiating fin 16 can be carried out with heat pipe 26.
Working principle of the present utility model is:
The utility model is arranged between equipment and pedestal, and air bag vibration isolator upper cover plate 5 is connected with by device for vibration insutation, and lower cover plate 7 is connected with pedestal.
The utility model have employed hybrid vibration isolation pattern in parallel, the contactless characteristic that has electromagnetic actuator 2 can not cause vibration short circuit transmission, therefore the vibration isolating effect of air bag vibration isolator 1 has been given full play to, there is excellent wideband vibration isolating effect, required active controlling force is lower, and when machinery run-off the straight, wave or impact time, the spring be installed in parallel between actuator and air bag cover plate can play buffer function.The global stiffness of spring is all spring rates and and equals k
2, and its size meets k
2<k
a, wherein k
afor the rigidity of actuator.The utility model is by air bag vibration isolator 1 support apparatus load, and electromagnetic actuator 2, without the need to providing static support power, compared with the series connection vibration isolation pattern that other types actuator is conventional, has less power consumption and the reliability of Geng Gao.
Electromagnetic actuator 2 is integrated in air bag vibration isolator 1, can compact structure be made; The heat that electromagnetic actuator coil 15 energising produces is delivered to the metal cover board 5 of air bag vibration isolator 1 by radiating fin 16, iron core 9 and armature 8, on 7, then by being diffused to rapidly in ambient air by device for vibration insutation under-chassis and pedestal.Respectively embedding temperature transducer 12,13 bottom iron core 9 and inside coil 15, in real time near monitoring air bag vibration isolator lower cover plate 7 and the temperature of actuator coil 15, guarantees that security of system reliably works.
Air bag vibration isolator lower cover plate 7 has pore 10, inflation/deflation can be controlled by attitude control system, accommodation is carried out in change for equipment center of gravity and load, ensures the overall posture balancing of isolation mounting, and the air gap 17 between actuator armature 8 and iron core 9 is remained on proper range.Air bag lower cover plate 7 has string holes 11, the signal output part of temperature transducer 12,13 and the supply lines of electromagnetic actuator 2 all can be drawn from this hole.String holes 11 place uses hermetic seal plug 3, ensures the tightness of air bag vibration isolator 1.
Acceleration transducer 4 exports and vibrates relevant signal with equipment base, and be supplied to controller, controller produces corresponding signal, changes the electric current of electromagnetic actuator coil 15, makes electromagnetic actuator 2 export corresponding alternating force, offsets the line spectrum vibration of equipment base.Therefore the passive hybrid isolator of this master can realize the synchronous effectively control of wideband vibration and low frequency spectrum lines vibration, can prevent impact from causing actuator configurations to damage simultaneously.
Claims (6)
1. the passive hybrid isolator of shock resistance type master, it is characterized in that electromagnetic actuator, shock resistance spring fitting are in bellows air bag vibration isolator, shock resistance spring is contained between air bag upper cover plate and the seat of honour or is contained between electromagnetic actuator and lower cover plate; Lower cover plate has pore, string holes, the one end open of pore, string holes is at the outer side surface of lower cover plate, and the other end opening is in the upper surface in elastic sack body at lower cover plate, gas-tight seal socket is welded on string holes external port;
The iron core of described electromagnetic actuator is equipped with permanent magnet, permanent magnet has flexible magnetic conduction rubber, the outer winding around of iron core, armature is fixed on lower seat; Air gap is left, filling flexible magnetic conduction rubber in air gap between armature and permanent magnet;
Radiating fin one end is around the iron core of electromagnetic actuator and coil, and the other end is close to the lower cover plate of bellows air bag vibration isolator, temperature transducer two, acceleration transducer in the bottom and coil of electromagnetic actuator iron core, temperature transducer one side in coil; Acceleration transducer is installed on inside bellows air bag vibration isolator.
2. the passive hybrid isolator of a kind of shock resistance type master according to claim 1, it is characterized in that shock resistance effect is realized by shock resistance spring (18) and flexible magnetic conduction rubber (21), wherein shock resistance spring (18) is one, two or many, many shock resistance springs are fixedly mounted between actuator armature (8) and upper cover plate (5) by the seat of honour (19), lower seat (20) in the mode of certain angle of being separated by, or are arranged between electromagnetic actuator (2) and lower cover plate (7).
3. the passive hybrid isolator of a kind of shock resistance type master according to claim 1, it is characterized in that the iron core (9) of electromagnetic actuator (2) is that mountain font lamination fixedly forms, armature (8) is that yi word pattern lamination fixedly forms, the permanent magnet of armature both sides is contrary with permanent magnet (14) pole orientation of center pillar, forms the permanent magnetic circuit that two, left and right is closed; Coil (15), around on the center pillar of mountain font iron core, takes iron core groove width; Time in coil by electric current, also can form the electromagnetic circuit that two, left and right is closed.
4. the passive hybrid isolator of a kind of shock resistance type master according to claim 1, is characterized in that shock resistance spring (18) rubber, the replacement of insulation ester shock resistance elastic material.
5. the passive hybrid isolator of a kind of shock resistance type master according to claim 1, it is characterized in that air bag vibration isolator can be bellows air bag vibration isolator (1) or membrane type air bag vibration isolator (24), wherein membrane type air bag vibration isolator (24) is by elastic sack body (25) and be linked to be overall piston shape upper cover plate (22) with utricule and housing shape lower cover plate (23) forms, air bag vibration isolator lower cover plate (7) has pore (10) and string holes (11), gas-tight seal socket (3) is welded in the string holes (11) of air bag vibration isolator lower cover plate (7).
6. the passive hybrid isolator of a kind of shock resistance type master according to claim 1, is characterized in that, iron core (9) and armature (8) adopt the silicon steel plate stacking of thick 0.35mm to form; Permanent magnet (14) is made up of Rb-Fe-B material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320165.7U CN204878514U (en) | 2015-05-18 | 2015-05-18 | Type that shocks resistance owner mixes isolator passively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320165.7U CN204878514U (en) | 2015-05-18 | 2015-05-18 | Type that shocks resistance owner mixes isolator passively |
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| Publication Number | Publication Date |
|---|---|
| CN204878514U true CN204878514U (en) | 2015-12-16 |
Family
ID=54822889
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520320165.7U Withdrawn - After Issue CN204878514U (en) | 2015-05-18 | 2015-05-18 | Type that shocks resistance owner mixes isolator passively |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930113A (en) * | 2015-05-18 | 2015-09-23 | 中国人民解放军海军工程大学 | Impact-resistant type active-passive hybrid vibration isolator |
| CN106840225A (en) * | 2017-01-24 | 2017-06-13 | 广东工业大学 | For the integrated vibration control system and method for absolute grating scale |
| CN108088599A (en) * | 2017-12-01 | 2018-05-29 | 中国直升机设计研究所 | A kind of helicopter electromagnetic actuator power output variation characteristic test method |
| CN108561495A (en) * | 2018-06-26 | 2018-09-21 | 河南科技大学 | A kind of sound wave vibration absorber and its oscillation damping method on vegetable transplanting machine |
| CN112901843A (en) * | 2021-01-19 | 2021-06-04 | 欧拉姆阀门科技有限公司 | Magnetic driving device without valve rod |
| CN112984038A (en) * | 2021-04-27 | 2021-06-18 | 湖南博匠信息科技有限公司 | Blade server control method |
| CN113511348A (en) * | 2021-07-15 | 2021-10-19 | 兰州空间技术物理研究所 | Eddy current damping vibration-damping heat-insulating device of vertical thruster |
-
2015
- 2015-05-18 CN CN201520320165.7U patent/CN204878514U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930113A (en) * | 2015-05-18 | 2015-09-23 | 中国人民解放军海军工程大学 | Impact-resistant type active-passive hybrid vibration isolator |
| CN106840225A (en) * | 2017-01-24 | 2017-06-13 | 广东工业大学 | For the integrated vibration control system and method for absolute grating scale |
| CN106840225B (en) * | 2017-01-24 | 2019-11-29 | 广东工业大学 | Integrated vibration control system and method for absolute grating scale |
| CN108088599A (en) * | 2017-12-01 | 2018-05-29 | 中国直升机设计研究所 | A kind of helicopter electromagnetic actuator power output variation characteristic test method |
| CN108561495A (en) * | 2018-06-26 | 2018-09-21 | 河南科技大学 | A kind of sound wave vibration absorber and its oscillation damping method on vegetable transplanting machine |
| CN108561495B (en) * | 2018-06-26 | 2020-04-07 | 河南科技大学 | Sound wave vibration reduction device and method for vegetable transplanting machine |
| CN112901843A (en) * | 2021-01-19 | 2021-06-04 | 欧拉姆阀门科技有限公司 | Magnetic driving device without valve rod |
| CN112984038A (en) * | 2021-04-27 | 2021-06-18 | 湖南博匠信息科技有限公司 | Blade server control method |
| CN112984038B (en) * | 2021-04-27 | 2021-08-03 | 湖南博匠信息科技有限公司 | Blade server control method |
| CN113511348A (en) * | 2021-07-15 | 2021-10-19 | 兰州空间技术物理研究所 | Eddy current damping vibration-damping heat-insulating device of vertical thruster |
| CN113511348B (en) * | 2021-07-15 | 2022-10-25 | 兰州空间技术物理研究所 | Eddy current damping vibration-damping heat-insulating device of vertical thruster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |