CN113757286A - Magnetic suspension shock absorber - Google Patents
Magnetic suspension shock absorber Download PDFInfo
- Publication number
- CN113757286A CN113757286A CN202111075819.0A CN202111075819A CN113757286A CN 113757286 A CN113757286 A CN 113757286A CN 202111075819 A CN202111075819 A CN 202111075819A CN 113757286 A CN113757286 A CN 113757286A
- Authority
- CN
- China
- Prior art keywords
- magnet
- lower magnet
- shell
- recited
- vibration damper
- 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.)
- Granted
Links
Images
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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
-
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
-
- 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
- F16F15/0232—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 with at least one gas spring
-
- 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
- F16F15/03—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 magnetic or electromagnetic means
-
- 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
- F16F15/04—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 elastic means
- F16F15/046—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 elastic means using combinations of springs of different kinds
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
Abstract
The invention relates to the technical field of shock absorbers, in particular to a magnetic suspension shock absorber; comprises a shell, an upper magnet, a lower magnet, a connecting rod, a spring, a grid, a filter screen and a rubber layer; according to the principle that like poles repel each other between the magnet, opposite poles attract each other, thereby make go up between the magnet and carry out like poles repel each other between the magnet down, make and go up and repel each other between magnet and the lower magnet, thereby go up magnet and lower magnet middle part production magnetic field, thereby reach the effect of damping, and when last magnet and lower magnet moved, the spring dragged and slowly shaken magnet and last magnet down, thereby make the spring under letting in effectual current, the spring can improve the slow vibration effect of magnetic suspension shock absorber.
Description
Technical Field
The invention relates to the technical field of shock absorbers, in particular to a magnetic suspension shock absorber.
Background
The vibration damper is a vibration damping product used between equipment with a vibration source and a foundation, mainly damps the transmission of the vibration of the equipment with the vibration source to other equipment, is generally made of rubber and a steel spring, damps the vibration by the compression deformation of the rubber and the spring, and is divided into two types, namely a rubber vibration damper and a spring vibration damper according to materials, which are two basic types of vibration dampers seen and used at present; the principle and the manufacturing material of the magnetic suspension shock absorber are different from those of shock absorbers on the market, and the magnetic suspension shock absorber is a shock absorber manufactured by a magnetic suspension technology with a new idea and a new principle.
However, the passive magnetic suspension shock absorber in the prior art needs to pre-magnetize the magnetic part when in use, and is not suitable for mechanical equipment with larger vibration; in the prior art, an active magnetic suspension shock absorber is electrified to a magnetic element to generate a magnetic field after being electrified, so that the purpose of damping is achieved, but in the prior art, when the force generated by vibration of mechanical equipment is large, the current electrified to the magnetic element can only be enhanced to increase the magnetic field of the magnetic suspension shock absorber, and certain danger is caused when the current is large.
In view of this, the present invention provides a magnetic suspension damper, which solves the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the problem that in the prior art, when the force generated by the vibration of mechanical equipment is large, the current electrified into a magnetic element can only be enhanced to increase the magnetic field of the magnetic suspension shock absorber, and when the current is large, certain danger exists is solved; the invention provides a magnetic suspension shock absorber.
The technical scheme adopted by the invention for solving the technical problems is as follows: a magnetic levitation vibration damper comprising:
the magnet assembly comprises a shell, wherein an upper magnet and a lower magnet are connected inside the shell in a sliding manner;
the top of the upper magnet and the bottom of the lower magnet are fixedly connected with connecting rods respectively, and the two connecting rods extend out of the top and the bottom of the shell respectively;
and the magnetism increasing unit is arranged in the shell and used for increasing the magnetic field intensity of the upper magnet and the lower magnet.
Preferably, the magnetism increasing unit comprises a first slot and a copper coil; the first groove is annularly formed in the outer rings of the upper magnet and the lower magnet respectively, and the copper coil is wound in the first groove.
Preferably, the magnetism increasing unit comprises a plurality of rectangular grooves; the rectangular grooves are distributed on the upper end surface of the lower magnet in a meter shape.
Preferably, the magnetism increasing unit further comprises a magnet guiding plate, and the magnet guiding plate is fixedly connected to the upper end face of the lower magnet.
Preferably, the upper end of the upper magnet and the lower end of the lower magnet are fixedly connected with the inner wall of the shell through springs.
Preferably, the middle parts of the upper end and the lower end of the shell are provided with grids, and a filter screen is fixedly connected between every two adjacent grids.
Preferably, the aperture of the passage between adjacent grids is gradually enlarged outwards by taking the central axis of the shell as the center.
Preferably, the upper magnet and the lower magnet are neodymium iron boron magnets.
Preferably, the upper end face and the lower end face of the upper magnet and the lower magnet are fixedly connected with rubber layers.
Preferably, the rubber layer of the upper magnet is in close contact with the inner wall of the shell, and the rubber layer of the lower end face of the lower magnet is in close contact with the inner wall of the shell.
The invention has the following beneficial effects:
1. the invention relates to a magnetic suspension shock absorber, which is characterized in that a shell, an upper magnet, a lower magnet, a connecting rod and a spring are arranged; according to like-pole repulsion between the magnet, the principle that opposite sex attracted, thereby make go up between the magnet and carry out like-pole repulsion between the magnet down, make go up magnet and repel each other between the magnet down, thereby can absorb, the vibration that produces between the buffering mechanical equipment strikes, thereby reach the effect of damping, and when last magnet moved with lower magnet, the spring dragged gentle vibrations to last magnet and lower magnet, thereby make the spring under letting in effectual current, the spring can improve the slow vibration effect of magnetic suspension shock absorber.
2. The invention relates to a magnetic suspension shock absorber, which is characterized in that a grid, a filter screen and a rubber layer are arranged; be provided with the grid through the upper and lower both ends middle part at the casing, make in the casing through grid and external intercommunication, when going on slowly shaking between last magnet and the lower magnet, go up the air between magnet and the lower magnet and extrude, receive extruded air from the inside discharge of grid, make gaseous exhaust between last magnet and lower magnet, when going up magnet and lower magnet upward movement, external gas gets into between magnet and the lower magnet through the passageway between the grid, thereby to last magnet and lower magnet cool down the processing, thereby when making and vibrating between magnet and the lower magnet, improve the slow efficiency that shakes of shock absorber.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of FIG. 1;
FIG. 3 is a view of the grid construction of FIG. 2;
FIG. 4 is a view showing the structure of the first embodiment;
FIG. 5 is a structural view of the second embodiment;
FIG. 6 is a structural view of a third embodiment;
in the figure: the device comprises a shell 1, an upper magnet 11, a lower magnet 12, a connecting rod 13, a spring 14, a grid 15, a filter screen 16, a rubber layer 17, a magnetizing unit 2, a first groove 21, a copper coil 22, a rectangular groove 23 and a magnetic iron plate 24.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6;
the first embodiment;
a magnetic levitation vibration damper comprising:
the magnetic field generator comprises a shell 1, wherein an upper magnet 11 and a lower magnet 12 are connected inside the shell 1 in a sliding mode;
the top of the upper magnet 11 and the bottom of the lower magnet 12 are fixedly connected with connecting rods 13 respectively, and the two connecting rods 13 extend out of the top and the bottom of the shell 1 respectively;
and the magnetism increasing unit 2 is arranged in the shell 1, and the magnetism increasing unit 2 is used for increasing the magnetic field intensity of the upper magnet 11 and the lower magnet 12.
When the damping device is used, the upper magnet 11 and the lower magnet 12 are connected in the shell 1 in a sliding manner, the connecting rods 13 are arranged on the upper magnet 11 and the lower magnet 12, the connecting rods 13 are connected with mechanical equipment needing a damping device, the inside of the connecting rods 13 is electrically connected with the mechanical equipment through cables, when the mechanical equipment is used, the insides of the upper magnet 11 and the lower magnet 12 are electrified, when the damping force needing to be used is small, the upper magnet 11 and the lower magnet 12 can be electrified and magnetized in advance, magnetism is generated between the upper magnet 11 and the lower magnet 12, according to the principle that like poles repel each other and opposite poles attract each other between the magnets, like poles repel each other between the upper magnet 11 and the lower magnet 12, and repel each other between the upper magnet 11 and the lower magnet 12, so that vibration impact generated between the mechanical equipment can be absorbed and buffered, thereby reach the effect of damping, and when mechanical equipment vibration is great, make upper magnet 11 and lower magnet 12 circular telegram through connecting rod 13, make the magnetism between upper magnet 11 and the lower magnet 12 increase, and then make the magnetic field intensity of upper magnet 11 and lower magnet 12 increase, make the repulsion force reinforcing between upper magnet 11 and the lower magnet 12, make the damping effect of shock absorber increase, and then realize the magnetic field intensity suspension power of magnet 11 and lower magnet 12 in the dynamic adjustment, thereby reach the size that is suitable for different mechanical equipment vibrations, and through increasing magnetic unit 2, realize increasing the magnetic field intensity of upper magnet 11 and lower magnet 12 under limited electric current.
The magnetizing unit 2 comprises a first slot 21 and a copper coil 22; the first groove 21 is annularly formed in the outer rings of the upper magnet 11 and the lower magnet 12 respectively, and the copper coil 22 is wound in the first groove 21;
when the magnetic flux linkage device is used, the first grooves 21 are uniformly formed in the outer rings of the upper magnet 11 and the lower magnet 12, the first grooves 21 are annularly formed in the outer rings of the upper magnet 11 and the lower magnet 12, and the copper coil 22 is wound in the first grooves 21, so that the direction of a magnetic field generated by current is consistent with the direction of the magnetic field of the upper magnet 11 and the lower magnet 12 when the linkage rod 13 is electrified, the upper magnet 11 and the lower magnet 12 are made to be iron core magnetic poles, and the magnetic field between the upper magnet 11 and the lower magnet 12 is increased; therefore, the magnetism of the upper magnet 11 and the lower magnet 12 is increased again on the original basis, and the vibration damping effect of the vibration damper is further increased.
The upper end of the upper magnet 11 and the lower end of the lower magnet 12 are fixedly connected with springs 14, and the other ends of the springs 14 are fixedly connected with the upper end and the lower end inside the shell 1;
during the use, when going up magnet 11 and lower magnet 12 and moving, spring 14 pulls and slowly shakes last magnet 11 and lower magnet 12 to make spring 14 under letting in effectual current, spring 14 can improve the slow vibration effect of magnetic suspension shock absorber, thereby reduces the amplitude between last magnet 11 and the lower magnet 12.
The middle parts of the upper end and the lower end of the shell 1 are provided with grids 15, and a filter screen 16 is fixedly connected between the adjacent grids 15;
the aperture of the channel between the adjacent grids 15 is gradually enlarged outwards by taking the central axis of the shell 1 as the center;
when in use, the middle parts of the upper end and the lower end of the shell 1 are provided with the grids 15, so that the interior of the shell 1 is communicated with the outside through the grids 15, when the vibration is damped between the upper magnet 11 and the lower magnet 12, air between the upper magnet 11 and the lower magnet 12 is squeezed, the squeezed air is discharged from the inside of the grill 15, gas is discharged between the upper magnet 11 and the lower magnet 12, when the upper and lower magnets 11 and 12 move upward, the external air enters between the upper and lower magnets 11 and 12 through the passage between the grids, thereby, when the temperature of the upper magnet 11 and the lower magnet 12 is lowered to vibrate the upper magnet 11 and the lower magnet 12, the vibration damping efficiency of the vibration damper is improved, and the filter screen 16 is fixedly connected between the two adjacent grids 15, thereby preventing external dust from entering the interior of the shell 1 through the grating 15 and ensuring the cleanness of the interior of the shell 1; the aperture of the passage between the grids 15 is gradually enlarged outwards by taking the shell as the center; therefore, a conical opening is formed between the two grids 15, and according to the narrow tube effect, when the upper magnet 11 and the lower magnet 12 are subjected to vibration damping, when the lower magnet 12 is moved downwards, and when the upper magnet 11 is moved upwards, negative pressure is formed between the upper magnet 11 and the lower magnet 12, so that gas can more quickly enter between the upper magnet 11 and the lower magnet 12, and the vibration efficiency of the upper magnet 11 and the lower magnet 12 is improved.
The upper magnet 11 and the lower magnet 12 are neodymium iron boron magnets;
during the use, be neodymium iron boron through making last magnet 11 and lower magnet 12, neodymium iron boron magnet is the strongest magnet of magnetism to make last magnet 11 and lower magnet 12 when carrying out the bradyseism, the magnetic field intensity of going up magnet 11 and lower magnet 12 is stronger, and then makes the repulsion force increase between magnet 11 and the lower magnet 12, thereby makes last magnet 11 and lower magnet 12 be applicable to stronger mechanical equipment vibration amplitude.
The upper end face and the lower end face of the upper magnet 11 and the lower magnet 12 are fixedly connected with rubber layers 17.
The rubber layer 17 of the upper magnet 11 is in close contact with the inner wall of the shell 1, and the rubber layer 17 of the lower end face of the lower magnet 12 is in close contact with the inner wall of the shell 1;
when the magnetic field buffering type magnetic field generating device is used, the rubber layers 17 are fixedly connected to the upper end face and the lower end face between the upper magnet 11 and the lower magnet 12, the rubber is made of non-magnetic materials, so that magnetism between the upper magnet 11 and the lower magnet 12 is not influenced, a large number of rare earth elements, namely neodymium, iron and boron, are contained in neodymium iron boron, the characteristics of the neodymium iron boron are hard and brittle, the surfaces of the neodymium iron boron and the neodymium iron boron are easily oxidized and corroded, when the rubber layers 17 perform slow vibration up-and-down movement on the upper magnet 11 and the lower magnet 12, the upper magnet 11 and the lower magnet 12 are prevented from colliding with each other and being damaged when colliding with the shell 1, and the upper end face and the lower end face of the upper magnet 11 and the lower magnet 12 are wrapped by the rubber layers 17, so that oxidation and corrosion on the surfaces of the upper magnet 11 and the lower magnet 12 are prevented; and the rubber layer 17 on the upper magnet 11 and the lower magnet 12 is in close contact with the inner wall of the shell 1, so that the side surfaces of the lower magnet 12 and the upper magnet 11 are protected, and the side surfaces of the upper magnet 11 and the lower magnet 12 are prevented from being oxidized and corroded.
Example two;
the difference between the first embodiment and the second embodiment is;
the magnetizing unit 2 comprises a plurality of rectangular grooves 23; the rectangular grooves 23 are distributed in a meter shape and are formed on the upper end surface of the lower magnet 12;
when the magnetic field buffering device is used, the rectangular grooves 23 are formed in the upper end faces of the magnets, the rectangular grooves 23 are distributed on the upper end face of the lower magnet 12 in a meter shape, when the upper end faces and the lower end faces of the lower magnet 12 and the upper magnet 11 are smoothly arranged, the magnetic field of the upper end face of the lower magnet 12 is large in the outer ring and small in the middle, the rectangular grooves 23 are formed in the upper end faces of the lower magnet 12, the magnetic field distribution of the upper end face of the lower magnet 12 is improved, the condition that the middle area of the lower magnet 12 is weaker is obviously improved, the strength gradient of the magnetic field strength of the upper magnet 11 and the lower magnet 12 is increased, and the buffering efficiency between the upper magnet 11 and the lower magnet 12 is increased.
Example three;
the difference between the third embodiment and the second and first embodiments is that;
the magnetism increasing unit 2 further comprises a magnet guide plate 24, and the magnet guide plate 24 is fixedly connected to the upper end face of the lower magnet 12;
when in use, the upper end of the lower magnet 12 is fixedly connected with the magnet guide plate 24, when the connecting rod 13 is electrified, the upper magnet 11 and the lower magnet 12 are electrified, when the upper magnet 11 and the lower magnet 12 are electrified, the upper magnet 11 and the lower magnet 12 are magnetized, thereby repelling each other between the upper magnet 11 and the lower magnet 12, thereby generating a vibration damping effect between the upper magnet 11 and the lower magnet 12, and by attaching the magnet guide plate 24 to the upper end of the lower magnet 12, thereby concentrating the magnetic force lines between the upper magnet 11 and the lower magnet 12, thereby improving the magnetic properties between the upper magnet 11 and the lower magnet 12, and the edges of the magnet conductive plate 24 and the magnetic field at the edges of the magnet conductive plate 24 are increased, thereby increasing the magnetic properties between the upper magnet 11 and the lower magnet 12, thereby making the repulsive force between the upper magnet 11 and the lower magnet 12 stronger, the vibration damping effect between the upper magnet 11 and the lower magnet 12 is improved by the upper magnet 11 and the lower magnet 12.
The specific working process is as follows:
the upper magnet 11 and the lower magnet 12 are connected in the shell 1 in a sliding way, the connecting rods 13 are arranged on the upper magnet 11 and the lower magnet 12, the connecting rods 13 are connected with mechanical equipment needing a damping device, the inside of the connecting rods 13 is electrically connected with the mechanical equipment through cables, when the mechanical equipment is used, the insides of the upper magnet 11 and the lower magnet 12 are electrified, when the damping force needing to be used is small, the upper magnet 11 and the lower magnet 12 can be electrified and magnetized in advance, magnetism is generated between the upper magnet 11 and the lower magnet 12, according to the principle that like poles repel and opposite poles attract, like poles repel between the upper magnet 11 and the lower magnet 12, and repel between the upper magnet 11 and the lower magnet 12, vibration impact generated between the mechanical equipment can be absorbed and buffered, and the damping effect is achieved, and when the mechanical equipment vibrates greatly, the upper magnet 11 and the lower magnet 12 are electrified through the connecting rod 13, so that the magnetism between the upper magnet 11 and the lower magnet 12 is increased, the magnetic field strength of the upper magnet 11 and the lower magnet 12 is increased, the repulsive force between the upper magnet 11 and the lower magnet 12 is enhanced, the vibration reduction effect of the vibration absorber is increased, the magnetic field strength suspension force of the upper magnet 11 and the lower magnet 12 is dynamically adjusted, the vibration size suitable for different mechanical equipment is achieved, and the magnetic field strength of the upper magnet 11 and the magnetic field strength of the lower magnet 12 are increased under limited current through the magnetism increasing unit 2.
And (3) analyzing experimental data:
1.1 purpose of experiment: in order to verify the difference between the application effect and the prior art.
1.2 Experimental Equipment: the vibration testing device comprises a doubledon vibration absorber, a saxophone vibration absorber, a vibration absorber designed by the application, a vibration experiment table, a vibration frequency detector and an amplitude detector.
1.3 Experimental procedures:
1.31 three kinds of vibration dampers are led to rated current with the same size; the three vibration dampers have vibration damping effect under the same current;
1.32 placing the electrified vibration damper on a vibration experiment table, and then starting the vibration experiment table to enable the vibration experiment table to generate the same mechanical vibration, so that the three vibration dampers can damp the mechanical vibration generated by the vibration experiment table;
1.33 then detecting the vibration frequency of the three vibration absorbers, and detecting the three vibration absorbers in groups, wherein the doubly fitted vibration absorbers are A groups, the saxophone vibration absorbers are B groups, and the vibration absorbers designed by the application are C groups, wherein each group of vibration absorbers lasts for 12min respectively, each group of vibration absorbers is detected once every 3 minutes, the amplitude, the damping coefficient and the vibration frequency ratio of each group at each time end are detected, and the four times of detection data are counted respectively;
1.4 detection result:
1.41: the lower graph is a vibration frequency statistical table of three vibration dampers under the same current
Data for the group A shock absorbers tested is shown in the chart
Watch 1
The data for the group B dampers are shown in the following chart II
Watch two
The data for the C group of shock absorbers are shown in the third diagram
Watch III
1.5 experimental comparison:
according to the analysis of the above table one and table three, the formula of calculating the average number can be obtained
It is found that the average number of table one is 9 and the average number of table three is 6.5, so that the average amplitude of table three is smaller than that of table one, and the average amplitude of table three is smaller than that of table one after the magnetic field of table three is strengthened by the magnetism increasing unit, so that the vibration absorber of the application is proved to be due to the prior art in terms of amplitude;
from the mean calculation formula
The average damping coefficient of the first table is 0.482, the average damping coefficient of the third table is 0.417, the damping coefficients of the first table and the third table are all between 0.3 and 0.55 (the damping coefficient is the best in the interval), and the damping coefficient of the third table is smaller than the existing coefficient, so that the damping coefficient of the shock absorber designed by the application is smaller than that of the prior art, and the shock absorption effect of the shock absorber is better than that of the prior art under the condition that the same power supply is used by the application;
by means of a mean calculation formula
The average frequency ratio of table one is 2.575, the average frequency ratio of table three is 4.35, the average frequencies of table one and table three are both between 2.5-4.5 (the better frequency ratio interval is adopted in engineering practice, the larger is the better), and the vibration frequency ratio of table three is larger than that of table one, thereby obtaining that under the same current, the vibration damper of the application is better than the prior art in the aspect of vibration damping efficiency under the condition of the added magnetism increasing unit.
According to the analysis of the second and third tables, the formula of average number calculation can be obtained
The average number of the second table is 15.25, the average number of the third table is 6.5, so that the average amplitude of the third table is smaller than that of the second table, and the average amplitude of the third table is smaller than that of the second table after the magnetic field of the third table is strengthened by the magnetism increasing unit, so that the vibration absorber is proved to be in the prior art in terms of amplitude;
from the mean calculation formula
The average damping coefficient of Table two is 0.445, the average damping coefficient of Table three is 0.417, and the damping coefficients of Table two and Table three are both 0.30.55 (the damping coefficient is optimal in the interval), and the damping coefficient of table three is smaller than the existing coefficient, so that the damping coefficient of the shock absorber designed by the application is smaller than that of the prior art, and the shock absorbing effect of the application is better than that of the prior art under the condition that the same power supply is used;
by means of a mean calculation formula
The average frequency ratio of the second table is 2.575, the average frequency ratio of the third table is 4.35, the average frequencies of the second table and the third table are both between 2.5 and 4.5 (a better frequency ratio interval is adopted in engineering practice, the larger frequency ratio is better), and the vibration frequency ratio of the third table is larger than that of the second table, so that under the same current, the vibration damper of the application is better than the prior art in the aspect of vibration damping efficiency under the condition of the application under the clamping of the magnetizing unit.
1.6 summary of the experiment:
according to the comparative experiment, the A group and the C group are compared with the B group and the C group, so that the vibration damper of the application is obtained due to the prior art in terms of use efficiency.
Front, back, left, right, up and down are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as front, the left side of the observer is defined as left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (10)
1. A magnetic suspension shock absorber is characterized in that: the method comprises the following steps:
the magnetic control device comprises a shell (1), wherein an upper magnet (11) and a lower magnet (12) are connected to the inside of the shell (1) in a sliding manner;
the top of the upper magnet (11) and the bottom of the lower magnet (12) are fixedly connected with connecting rods (13) respectively, and the two connecting rods (13) extend out of the top and the bottom of the shell (1) respectively;
the magnetism increasing unit (2), the magnetism increasing unit (2) is arranged in the shell (1), and the magnetism increasing unit (2) is used for increasing the magnetic field intensity of the upper magnet (11) and the lower magnet (12).
2. A magnetic levitation vibration damper as recited in claim 1, wherein: the magnetizing unit (2) comprises a first groove (21) and a copper coil (22); the first groove (21) is annularly formed in the outer rings of the upper magnet (11) and the lower magnet (12) respectively, and the copper coil (22) is wound in the first groove (21).
3. A magnetic levitation vibration damper as recited in claim 1, wherein: the magnetism increasing unit (2) comprises a plurality of rectangular grooves (23); the rectangular grooves (23) are distributed on the upper end surface of the lower magnet (12) in a rice shape.
4. A magnetic levitation vibration damper as recited in claim 1, wherein: the magnetism increasing unit (2) comprises a magnet guide plate (24), and the magnet guide plate (24) is fixedly connected to the upper end face of the lower magnet (12).
5. A magnetic levitation vibration damper as recited in claim 1, wherein: the upper end of the upper magnet (11) and the lower end of the lower magnet (12) are fixedly connected with the inner wall of the shell (1) through springs (14).
6. A magnetic levitation vibration damper as recited in claim 5, wherein: the middle parts of the upper end and the lower end of the shell (1) are provided with grids (15), and adjacent grids (15) are fixedly connected with a filter screen (16).
7. A magnetic levitation vibration damper as recited in claim 6, wherein: the aperture of the channel between the adjacent grids (15) is gradually enlarged outwards by taking the central axis of the shell (1) as the center.
8. A magnetic levitation vibration damper as recited in claim 1, wherein: the upper magnet (11) and the lower magnet (12) are neodymium iron boron magnets.
9. A magnetic levitation vibration damper as recited in claim 8, wherein: the upper end face and the lower end face of the upper magnet (11) and the lower magnet (12) are fixedly connected with rubber layers (17).
10. A magnetic levitation vibration damper as recited in claim 9, wherein: the rubber layer (17) of the upper magnet (11) is in close contact with the inner wall of the shell (1), and the rubber layer (17) of the lower end face of the lower magnet (12) is in close contact with the inner wall of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111075819.0A CN113757286B (en) | 2021-09-14 | 2021-09-14 | Magnetic suspension vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111075819.0A CN113757286B (en) | 2021-09-14 | 2021-09-14 | Magnetic suspension vibration damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113757286A true CN113757286A (en) | 2021-12-07 |
| CN113757286B CN113757286B (en) | 2023-08-18 |
Family
ID=78795688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111075819.0A Active CN113757286B (en) | 2021-09-14 | 2021-09-14 | Magnetic suspension vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113757286B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08131480A (en) * | 1994-11-08 | 1996-05-28 | Delta Kogyo Co Ltd | Magnetic damper for vibration proof and on-vehicle vibration proof head using magnetic damper |
| CN2736901Y (en) * | 2004-09-06 | 2005-10-26 | 天水长城开关厂 | Novel permanent-magnetic operating mechanism for switch gear |
| CN1729614A (en) * | 2002-09-27 | 2006-02-01 | 不列颠哥伦比亚大学 | Magnetic levitation apparatus |
| CN1758504A (en) * | 2005-10-26 | 2006-04-12 | 上海磁浮交通工程技术研究中心 | Suspension magnet of high speed magnetic suspension train and manufacturing method thereof |
| CN201031901Y (en) * | 2007-04-12 | 2008-03-05 | 宝山钢铁股份有限公司 | Magnetic buffer |
| CN201851572U (en) * | 2010-11-27 | 2011-06-01 | 王佳 | Electromagnetic shock absorber |
| CN202833833U (en) * | 2012-10-23 | 2013-03-27 | 成都市翻鑫家科技有限公司 | Novel electromagnetic shock absorber |
| CN103195806A (en) * | 2012-01-04 | 2013-07-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing stator, magnetic suspension bearing, stator core making tool and stator core making method |
| CN103201512A (en) * | 2010-08-11 | 2013-07-10 | 动态能源技术有限责任公司 | Kinetic energy management system |
| CN205350178U (en) * | 2015-11-02 | 2016-06-29 | 罗虹 | Permanent magnetism response magnetic force circumference damping structure |
| CN106167080A (en) * | 2016-07-19 | 2016-11-30 | 尹燕梁 | Submarine denoising device |
| KR101692289B1 (en) * | 2016-07-29 | 2017-01-04 | 김형돈 | vibration isolating device using permanent magnet |
| CN109305010A (en) * | 2018-10-30 | 2019-02-05 | 西南交通大学 | A kind of permanent-magnetism electromagnetic coupling control feed energy suspension actuator |
| CN110993387A (en) * | 2019-11-26 | 2020-04-10 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Repulsion mechanism for ultra-fast circuit breaker |
| CN212209182U (en) * | 2020-07-22 | 2020-12-22 | 中国电子科技集团公司第九研究所 | Multichannel gyromagnetic filter magnetic circuit |
-
2021
- 2021-09-14 CN CN202111075819.0A patent/CN113757286B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08131480A (en) * | 1994-11-08 | 1996-05-28 | Delta Kogyo Co Ltd | Magnetic damper for vibration proof and on-vehicle vibration proof head using magnetic damper |
| CN1729614A (en) * | 2002-09-27 | 2006-02-01 | 不列颠哥伦比亚大学 | Magnetic levitation apparatus |
| CN2736901Y (en) * | 2004-09-06 | 2005-10-26 | 天水长城开关厂 | Novel permanent-magnetic operating mechanism for switch gear |
| CN1758504A (en) * | 2005-10-26 | 2006-04-12 | 上海磁浮交通工程技术研究中心 | Suspension magnet of high speed magnetic suspension train and manufacturing method thereof |
| CN201031901Y (en) * | 2007-04-12 | 2008-03-05 | 宝山钢铁股份有限公司 | Magnetic buffer |
| CN103201512A (en) * | 2010-08-11 | 2013-07-10 | 动态能源技术有限责任公司 | Kinetic energy management system |
| CN201851572U (en) * | 2010-11-27 | 2011-06-01 | 王佳 | Electromagnetic shock absorber |
| CN103195806A (en) * | 2012-01-04 | 2013-07-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing stator, magnetic suspension bearing, stator core making tool and stator core making method |
| CN202833833U (en) * | 2012-10-23 | 2013-03-27 | 成都市翻鑫家科技有限公司 | Novel electromagnetic shock absorber |
| CN205350178U (en) * | 2015-11-02 | 2016-06-29 | 罗虹 | Permanent magnetism response magnetic force circumference damping structure |
| CN106167080A (en) * | 2016-07-19 | 2016-11-30 | 尹燕梁 | Submarine denoising device |
| KR101692289B1 (en) * | 2016-07-29 | 2017-01-04 | 김형돈 | vibration isolating device using permanent magnet |
| CN109305010A (en) * | 2018-10-30 | 2019-02-05 | 西南交通大学 | A kind of permanent-magnetism electromagnetic coupling control feed energy suspension actuator |
| CN110993387A (en) * | 2019-11-26 | 2020-04-10 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Repulsion mechanism for ultra-fast circuit breaker |
| CN212209182U (en) * | 2020-07-22 | 2020-12-22 | 中国电子科技集团公司第九研究所 | Multichannel gyromagnetic filter magnetic circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113757286B (en) | 2023-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7088841B2 (en) | Subwoofer | |
| CN102355617B (en) | Moving-iron unit for loudspeaking device | |
| US8422726B2 (en) | Ironless and leakage free coil transducer motor assembly | |
| CN113973256A (en) | Bone conduction speaker and magnetic circuit assembly thereof | |
| CN203395063U (en) | Active electronic shock absorber | |
| JP2005057820A (en) | Method for utilizing sound and vibration energy, generator utilizing sound and vibration energy, acoustic device and equipment for probing sound or vibration source | |
| CN103281658A (en) | Magnetic-driven speaker | |
| CN114658784A (en) | Permanent magnet and electromagnetic composite active and passive vibration isolation system | |
| CN113757286A (en) | Magnetic suspension shock absorber | |
| Shin et al. | A MEMS magnetic-based vibration energy harvester | |
| JP2023540061A (en) | flat speaker driven by a single permanent magnet and one or more voice coils | |
| CN211859909U (en) | Magnetic suspension electromagnetic-mechanical transducer | |
| CN1091260C (en) | Magnetic ring type earthquake demodulator | |
| KR101460431B1 (en) | Electroacoustic transducer having electromagnetic damper | |
| KR101050279B1 (en) | Dual core speaker | |
| KR19990041872A (en) | Speaker structure with double voice coil | |
| CN109944119B (en) | Ballast bed and ballast bed manufacturing method | |
| KR100665716B1 (en) | Speaker | |
| KR20150060401A (en) | Energy harvester using ferrofluid | |
| CN220858398U (en) | High decibel loudspeaker | |
| KR20040078705A (en) | Light Weight Speaker | |
| CN2317485Y (en) | Magnetic ring type geophone | |
| Gatti et al. | Design and simulation of core-ring magnet configurations for maximising energy transduction in linear actuators and micro-energy generators | |
| RU144569U1 (en) | DYNAMIC SPEAKER | |
| RU148953U1 (en) | DYNAMIC SPEAKER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |