CN113757286B - Magnetic suspension vibration damper - Google Patents
Magnetic suspension vibration damper Download PDFInfo
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- CN113757286B CN113757286B CN202111075819.0A CN202111075819A CN113757286B CN 113757286 B CN113757286 B CN 113757286B CN 202111075819 A CN202111075819 A CN 202111075819A CN 113757286 B CN113757286 B CN 113757286B
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- lower magnet
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- vibration
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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 application relates to the technical field of vibration dampers, in particular to a magnetic suspension vibration damper; 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 and opposite poles attract each other between the magnets, so that like poles repel each other between the upper magnets and between the lower magnets, the upper magnets and the lower magnets repel each other, magnetic fields are generated in the middle of the upper magnets and the middle of the lower magnets, the vibration reduction effect is achieved, when the upper magnets and the lower magnets move, the springs pull the upper magnets and the lower magnets to reduce vibration, and therefore the springs can improve the vibration reduction effect of the magnetic suspension vibration damper under the condition that effective current is fed.
Description
Technical Field
The application relates to the technical field of vibration absorbers, in particular to a magnetic suspension vibration absorber.
Background
The vibration damper is a vibration damping product used between equipment with a vibration source and a foundation, mainly used for damping the transmission of vibration from the equipment with the vibration source to other equipment, generally made of rubber and steel springs, and used for damping vibration through compression deformation of the rubber and the springs, and divided into a rubber vibration damper and a spring vibration damper according to materials, wherein the vibration damper is in two basic forms which are currently seen and used; the principle and the manufacturing materials of the magnetic suspension vibration damper are different from those of vibration dampers on the market, and the magnetic suspension vibration damper is a vibration damper manufactured by a new thought, a new principle and a magnetic suspension technology.
However, the passive magnetic suspension vibration damper in the prior art needs to pre-magnetize the magnetic piece in advance when in use and is not suitable for mechanical equipment with larger vibration; in the prior art, an active magnetic suspension vibration damper is electrified to a magnetic original piece, and then a magnetic field is generated after the magnetic original piece is electrified, so that the purpose of vibration reduction is achieved, but in the prior art, when the force generated by vibration of mechanical equipment is large, the current for electrifying the magnetic original piece can only be enhanced to increase the magnetic field of the magnetic suspension vibration damper, and the magnetic suspension vibration damper has a certain danger when the current is large.
In view of the above, the present application proposes a magnetic levitation shock absorber that solves the above-mentioned problems.
Disclosure of Invention
In order to make up the deficiency of the prior art, solve the problem that in the prior art, when the force generated by the vibration of the mechanical equipment is large, the current which is electrified into the magnetic original piece can only be enhanced to realize the increase of the magnetic field of the magnetic suspension shock absorber, and when the current is large, the problem has certain danger; the application provides a magnetic suspension shock absorber.
The technical scheme adopted for solving the technical problems is as follows: a magnetic levitation shock absorber comprising:
the shell is internally connected with an upper magnet and a lower magnet in a sliding manner;
the top of the upper magnet and the bottom of the lower magnet are respectively fixedly connected with a connecting rod, and the two connecting rods respectively extend out of the top and the bottom of the shell;
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 groove and a copper coil; the first groove is respectively formed in the outer ring of the upper magnet and the outer ring of the lower magnet in an annular mode, 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 in a rice shape and are arranged on the upper end face of the lower magnet.
Preferably, the magnetism increasing unit further comprises a magnetic iron plate, and the magnetic iron 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, grids are arranged in the middle of the upper end and the lower end of the shell, and a filter screen is fixedly connected between every two adjacent grids.
Preferably, the apertures of the channels between adjacent grids are gradually enlarged outwards with the central axis of the housing as the center.
Preferably, the upper magnet and the lower magnet are neodymium-iron-boron magnets.
Preferably, the upper end surfaces of the upper magnet and the lower magnet are fixedly connected with rubber layers.
Preferably, the rubber layer of the upper magnet is tightly contacted with the inner wall of the shell, and the rubber layer of the lower end surface of the lower magnet is tightly contacted with the inner wall of the shell.
The beneficial effects of the application are as follows:
1. the application relates to a magnetic suspension shock absorber, which is characterized by comprising a shell, an upper magnet, a lower magnet, a connecting rod and a spring; according to the principle that like poles repel each other and opposite poles attract each other between the magnets, so that like poles repel each other between the upper magnets and between the lower magnets, the upper magnets and the lower magnets repel each other, vibration impact generated between mechanical equipment can be absorbed and buffered, vibration reduction effect is achieved, when the upper magnets and the lower magnets move, the springs pull the upper magnets and the lower magnets and buffer vibration, and accordingly the springs can improve the vibration reduction effect of the magnetic suspension vibration reducer under the condition that effective current is introduced.
2. The application relates to a magnetic suspension shock absorber, which is characterized by comprising a grid, a filter screen and a rubber layer; through being provided with the grid at the upper and lower both ends middle part of casing, make through grid and external intercommunication in the casing, when carrying out the slow vibration between last magnet and the lower magnet, the air between last magnet and the lower magnet extrudees, the air of being extruded is discharged from the grid is inside, make gaseous last magnet and the lower gas exhaust between the magnet, when last magnet and lower magnet upward movement, external gas gets into between last magnet and the lower magnet through the passageway between the grid, thereby cool down processing to last magnet and lower magnet, thereby when making to vibrate between last magnet and the lower magnet, improve the slow vibration efficiency of shock absorber.
Drawings
The application is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present application;
FIG. 2 is a partial cross-sectional view of FIG. 1;
FIG. 3 is a view of the grating structure of FIG. 2;
fig. 4 is a structural view of the first embodiment;
fig. 5 is a structural view of a second embodiment;
fig. 6 is a structural view of a third embodiment;
in the figure: the magnetic field generator 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 magnetism increasing unit 2, a first groove 21, a copper coil 22, a rectangular groove 23 and a magnetic conductive iron plate 24.
Detailed Description
The application is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the application easy to understand.
As shown in fig. 1 to 6;
embodiment one;
a magnetic levitation shock absorber comprising:
a housing 1, wherein an upper magnet 11 and a lower magnet 12 are slidably connected inside the housing 1;
the top of the upper magnet 11 and the bottom of the lower magnet 12 are respectively fixedly connected with a connecting rod 13, and the two connecting rods 13 respectively extend out of the top and the bottom of the shell 1;
and a magnetism increasing unit 2, wherein the magnetism increasing unit 2 is arranged inside 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.
During the use, through the upper magnet 11 and the lower magnet 12 of sliding connection in casing 1, make all be provided with connecting rod 13 on upper magnet 11 and the lower magnet 12, make connecting rod 13 and the mechanical equipment that needs to use damping device go on being connected, and make connecting rod 13 inside carry out electric connection through cable and mechanical equipment, when mechanical equipment used, make upper magnet 11 and lower magnet 12 inside carry out the circular telegram, when the damping force that needs to use is little, can carry out the circular telegram to upper magnet 11 and lower magnet 12 in advance and add magnetism, make and produce magnetism between upper magnet 11 and the lower magnet 12, according to the principle of like phase repulsion between the magnet, the opposite phase attraction, thereby make and go on the like phase repulsion between upper magnet 11 and the lower magnet 12, make and repel each other between upper magnet 11 and the lower magnet 12, thereby can absorb, buffer the vibration impact that produces between the mechanical equipment, thereby reach the effect of damping, and when mechanical equipment vibrates great, make upper magnet 11 and lower magnet 12 carry out circular telegram through connecting rod 13, make the magnetism between upper magnet 11 and the lower magnet 12 increase, and then make upper magnet 11 and lower magnet 12 go on the circular telegram, and make the upper magnet 11 and lower magnet 12 produce magnetism, and the same magnetic field, and the lower magnet 12 is realized and is strong, and is better to realize the upper and lower magnet 12, the magnetic field is better and is better than the magnetic field, and is better than the upper and is better than the lower, the magnetic field, and is achieved, and is better than the lower, and the magnetic field.
The magnetism increasing unit 2 comprises a first groove 21 and a copper coil 22; the first groove 21 is respectively formed in the outer rings of the upper magnet 11 and the lower magnet 12 in a ring shape, and the copper coil 22 is wound in the first groove 21;
when the magnetic field generator 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 coils 22 are wound in the first grooves 21, so that when the connecting rod 13 is electrified, the magnetic field direction generated by current is consistent with the magnetic field direction of the upper magnet 11 and the lower magnet 12, the upper magnet 11 and the lower magnet 12 become 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 reduction 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;
when the magnetic suspension vibration damper is used, when the upper magnet 11 and the lower magnet 12 move, the spring 14 pulls and damps the upper magnet 11 and the lower magnet 12, so that the spring 14 can improve the damping effect of the magnetic suspension vibration damper when effective current is introduced into the spring 14, and the amplitude between the upper magnet 11 and the lower magnet 12 is reduced.
A grid 15 is arranged in the middle of the upper end and the lower end of the shell 1, and a filter screen 16 is fixedly connected between adjacent grids 15;
the aperture of the channel between adjacent grids 15 is gradually enlarged outwards by taking the central axis of the shell 1 as the center;
when the vibration damper is used, 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 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 extruded, the extruded air is discharged from the inside of the grids 15, so that the air between the upper magnet 11 and the lower magnet 12 is discharged, when the upper magnet 11 and the lower magnet 12 move upwards, the outside air enters between the upper magnet 11 and the lower magnet 12 through a channel between the grids, and thus the upper magnet 11 and the lower magnet 12 are subjected to cooling treatment, and when vibration is conducted between the upper magnet 11 and the lower magnet 12, the vibration damping efficiency of the vibration damper is improved, and a filter screen 16 is fixedly connected between the two adjacent grids 15, so that the outside dust is prevented from entering the interior of the shell 1 through the grids 15, and the cleaning in the shell 1 is ensured; the aperture of the passage between the grids 15 gradually expands outwards with the housing as the center; therefore, a conical opening is formed between the two grids 15, and according to the slot effect, when the upper magnet 11 and the lower magnet 12 perform vibration damping, and when the lower magnet 12 moves downwards, the upper magnet 11 moves upwards, and negative pressure is formed between the upper magnet 11 and the lower magnet 12, so that gas can enter between the upper magnet 11 and the lower magnet 12 more quickly, 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;
when the vibration damping device is used, the upper magnet 11 and the lower magnet 12 are made to be neodymium-iron-boron, and the neodymium-iron-boron magnet is made to be the magnet with the strongest magnetism, so that when the upper magnet 11 and the lower magnet 12 are subjected to vibration damping, the magnetic field intensity of the upper magnet 11 and the lower magnet 12 is stronger, and the repulsive force between the upper magnet 11 and the lower magnet 12 is increased, so that the upper magnet 11 and the lower magnet 12 are applicable to stronger vibration amplitude of mechanical equipment.
Rubber layers 17 are fixedly connected to the upper and lower end surfaces of the upper magnet 11 and the lower magnet 12.
The rubber layer 17 of the upper magnet 11 is tightly contacted with the inner wall of the shell 1, and the rubber layer 17 of the lower end surface of the lower magnet 12 is tightly contacted with the inner wall of the shell 1;
when the 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 a non-magnetic material, so that magnetism between the upper magnet 11 and the lower magnet 12 is not affected, and the neodymium iron boron contains a large amount of rare earth elements neodymium, iron and boron, and the device is hard and brittle in characteristics; and the rubber layers 17 on the upper magnet 11 and the lower magnet 12 are tightly contacted with the inner wall of the shell 1, so that the side surfaces of the upper magnet 11 and the lower magnet 12 are protected, and oxidation corrosion of the side surfaces of the upper magnet 11 and the lower magnet 12 is avoided.
Embodiment two;
the first embodiment differs from the second embodiment in that;
the magnetism increasing unit 2 includes a plurality of rectangular grooves 23; the rectangular grooves 23 are distributed in a rice shape and are arranged on the upper end face of the lower magnet 12;
when the magnetic field damping device is used, the rectangular grooves 23 are formed in the upper end face of the magnet, the rectangular grooves 23 are distributed on the upper end face of the lower magnet 12 in a rice shape, when the upper end faces of the lower magnet 12 and the upper magnet 11 and the lower end face are arranged smoothly, the magnetic field of the upper end face of the lower magnet 12 is small in the middle of the outer ring, and the rectangular grooves 23 are formed in the upper end face of the lower magnet 12, so that the magnetic field distribution of the upper end face of the lower magnet 12 is improved, the middle area of the lower magnet 12 is obviously improved, the strength gradient of the magnetic field intensity of the upper magnet 11 and the lower magnet 12 is increased, and the damping efficiency between the upper magnet 11 and the lower magnet 12 is improved.
Embodiment three;
the third embodiment differs from the second embodiment and the first embodiment in that;
the magnetism increasing unit 2 further comprises a magnetic iron plate 24, and the magnetic iron plate 24 is fixedly connected to the upper end face of the lower magnet 12;
when the magnetic iron plate 24 is fixedly connected to the upper end of the lower magnet 12, when the connecting rod 13 is electrified, the upper magnet 11 and the lower magnet 12 are electrified, after the upper magnet 11 and the lower magnet 12 are electrified, the upper magnet 11 and the lower magnet 12 generate magnetism, so that the upper magnet 11 and the lower magnet 12 repel each other, a vibration damping effect is generated between the upper magnet 11 and the lower magnet 12, the upper end of the lower magnet 12 is fixedly connected with the magnetic iron plate 24, magnetic force lines between the upper magnet 11 and the lower magnet 12 are concentrated, magnetism between the upper magnet 11 and the lower magnet 12 is improved, a magnetic field on edges of the magnetic iron plate 24 and edges of the magnetic iron plate 24 is increased, magnetism between the upper magnet 11 and the lower magnet 12 is increased, repulsive force between the upper magnet 11 and the lower magnet 12 is stronger, and the vibration damping effect between the upper magnet 11 and the lower magnet 12 is improved on the basis of the upper magnet 11 and the lower magnet 12.
The specific working procedure is as follows:
through the upper magnet 11 and the lower magnet 12 which are slidably connected in the shell 1, the upper magnet 11 and the lower magnet 12 are provided with the connecting rod 13, the connecting rod 13 is connected with mechanical equipment which needs to be used for a vibration damping device, the inside of the connecting rod 13 is electrically connected with the mechanical equipment through a cable, when the mechanical equipment is used, the inside of the upper magnet 11 and the inside of the lower magnet 12 are electrified, when the vibration damping force which needs 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 repel each other between the magnets, so that like poles repel each other between the upper magnet 11 and the lower magnet 12 are performed 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 the vibration 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, the magnetic strength between the upper magnet 11 and the lower magnet 12 is increased, the magnetic strength between the upper magnet 11 and the lower magnet 12 is further increased, the magnetic field strength between the upper magnet 11 and the lower magnet 12 is increased, the dynamic strength between the upper magnet 12 and the lower magnet 12 is further, the magnetic field is increased, and the magnetic field strength is further, the vibration damping effect is improved, and the vibration is achieved, and the vibration damping effect is achieved, and the vibration is not has the vibration damping effect is achieved, and the vibration is has the vibration damping effect.
Analysis of experimental data:
1.1 Experimental purposes: to verify the distinction between the use effect of the present application and the prior art.
1.2 experimental facility: the application relates to a double-adaptive damper, a saxophone damper, a damper designed by the application, a vibration experiment table, a vibration frequency detector and an amplitude detector.
1.3 experimental procedure:
1.31 by passing rated currents of the same size through three types of shock absorbers; the vibration reduction effect of the three vibration absorbers under the same current is achieved;
1.32, placing the energized vibration dampers 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 are used for damping the mechanical vibration generated by the vibration experiment table;
1.33 then detecting vibration frequencies of the three dampers, and by grouping the three dampers, wherein the doubly suitable damper is group a, the saxophone damper is group B, and the damper designed by the application is group C, wherein each group of dampers lasts for 12min, each group of dampers is detected once every 3 minutes, and amplitude, damping coefficient and vibration frequency ratio of each group at each time end are detected, and statistics is performed on four detection data, respectively;
1.4 detection results:
1.41: the lower graph shows the vibration frequency statistics of three vibration absorbers under the same current
The data for testing group a dampers is shown in the following chart one
List one
The data for the detection of group B dampers is shown in the following chart two
Watch II
The data for the detection of group C dampers is shown in the following chart three
Watch III
1.5 experimental comparison:
from the analysis of the above tables one and three, it can be derived that the formula is calculated from the averageThe average number of the first table is 9, the average number of the third table is 6.5, the average amplitude of the third table is smaller than that of the first table after the magnetic field is enhanced by the magnetism enhancing unit, and therefore the vibration damper is proved to be in view of the prior art;
from the average calculation formulaThe 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 optimal 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 the existing technology, and the shock absorbing effect of the application is better than the existing technology under the condition of using the same power supply;
by mean calculation formulaThe average frequency ratio of the first table is 2.575, the average frequency ratio of the third table is 4.35, the average frequencies of the first table and the third table are both between 2.5 and 4.5 (the better the frequency ratio interval is adopted in engineering practice, and the larger and the better the frequency ratio is), and the vibration frequency ratio of the third table is larger than the first table, so that the vibration damper is superior to the prior art in the efficiency of vibration reduction under the condition of the same current under the condition of the holding of a magnetization unit.
From the analysis of the second and third tables, it can be derived that the formula is calculated from the averageThe average number of the second table is 15.25, the average number of the third table is 6.5, the average amplitude of the third table is smaller than that of the second table after the magnetic field is enhanced by the magnetism enhancing unit, and the vibration damper is proved to be in view of the vibration damper in the aspect of amplitude;
from the average calculation formulaThe average damping coefficient of the second table is 0.445, the average damping coefficient of the third table is 0.417, the damping coefficients of the second table and the third table are all between 0.3 and 0.55 (the damping coefficient is optimal 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 the existing technology, and the shock absorbing effect of the application is better than the existing technology under the condition of using the same power supply;
by mean calculation formulaThe average frequency ratio of the second table is 2.575, the average frequency ratio of the third table is 4.35, and the average frequencies of the second table and the third table are both 2.5-4.5 (the better the frequency ratio interval adopted in engineering practice is, the larger and the better the frequency ratio interval is)And the vibration frequency ratio of the third table is larger than that of the second table, so that the vibration damper is superior to the prior art in the efficiency of vibration reduction under the condition of the clamping of the magnetic increasing unit under the same current.
1.6 summary of experiments:
according to the above comparative experiments, the pairs a and C and the pairs B and C were compared, thereby finding that the shock absorber of the present application is in terms of use efficiency due to the prior art.
The front, back, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the person viewing angle.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present application.
Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting. Although the application 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 scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present application.
Claims (8)
1. The utility model provides a magnetic suspension shock absorber which characterized in that: comprising the following steps:
the device comprises a shell (1), wherein an upper magnet (11) and a lower magnet (12) are connected inside the shell (1) in a sliding manner;
the top of the upper magnet (11) and the bottom of the lower magnet (12) are respectively fixedly connected with a connecting rod (13), and the two connecting rods (13) respectively extend out of the top and the bottom of the shell (1);
a magnetism increasing unit (2), wherein the magnetism increasing unit (2) is arranged inside 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);
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), and the magnetism increasing unit (2) comprises a plurality of rectangular grooves (23); the rectangular grooves (23) are distributed in a rice shape and are arranged on the upper end face of the lower magnet (12).
2. A magnetic levitation shock absorber as defined in claim 1, wherein: the magnetism increasing unit (2) comprises a first groove (21) and a copper coil (22); the first groove (21) is respectively and annularly arranged on the outer rings of the upper magnet (11) and the lower magnet (12), and the copper coil (22) is wound in the first groove (21).
3. A magnetic levitation shock absorber as defined in claim 1, wherein: the magnetism increasing unit (2) comprises a magnetic iron plate (24), and the magnetic iron plate (24) is fixedly connected to the upper end face of the lower magnet (12).
4. A magnetic levitation shock absorber as defined in claim 1, wherein: 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 every two adjacent grids (15).
5. A magnetic levitation shock absorber as defined in claim 4, wherein: the aperture of the channel between adjacent grids (15) is gradually enlarged outwards by taking the central axis of the shell (1) as the center.
6. A magnetic levitation shock absorber as defined in claim 1, wherein: the upper magnet (11) and the lower magnet (12) are neodymium-iron-boron magnets.
7. A magnetic levitation shock absorber as defined in claim 6, wherein: rubber layers (17) are fixedly connected to the upper end face and the lower end face of the upper magnet (11) and the lower magnet (12).
8. A magnetic levitation shock absorber as defined in claim 7, wherein: the rubber layer (17) of the upper magnet (11) is tightly contacted with the inner wall of the shell (1), and the rubber layer (17) of the lower end surface of the lower magnet (12) is tightly contacted with the inner wall of the shell (1).
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