CN113357301A - Magnetorheological fluid damper with active heat dissipation function - Google Patents
Magnetorheological fluid damper with active heat dissipation function Download PDFInfo
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- CN113357301A CN113357301A CN202110527444.0A CN202110527444A CN113357301A CN 113357301 A CN113357301 A CN 113357301A CN 202110527444 A CN202110527444 A CN 202110527444A CN 113357301 A CN113357301 A CN 113357301A
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/42—Cooling arrangements
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a magnetorheological fluid damper with active heat dissipation function, belonging to the technical field of dampers, wherein the damper is characterized in that a linkage rack, a support rotating shaft and a linkage gear are arranged, so that when the damper works, the motion of a piston head can enable the polarity of a driving and adjusting magnet close to one end of a thin-skin sealing sleeve to be continuously adjusted, the direction of magnetic force between the driving and adjusting magnet and an embedded magnet is continuously changed, and further one end of a heat dissipation rod, which is contacted with magnetorheological fluid, can be continuously moved to the outside of a cylinder body and is directly contacted with air with lower external temperature, so that the heat dissipation can be actively carried out, the heat dissipation efficiency of the damper is greatly improved, the damper is prevented from being damaged due to temperature sensing, and when the damper is in a working state for a long time, an elastic balloon can be subjected to thermal expansion, and a refrigeration ball is extruded into water in an annular cavity, so that the characteristic that saltpeter is dissolved in water and can absorb a large amount of heat is achieved, provides a refrigeration effect, and further can further improve the heat dissipation efficiency of the damper.
Description
Technical Field
The invention relates to the technical field of dampers, in particular to a magnetorheological fluid damper with an active heat dissipation function.
Background
The damper is a device for providing motion resistance and reducing motion energy, and a magnetorheological fluid damper is a damper taking magnetorheological fluid as a damping medium, the magnetorheological fluid belongs to a novel fluid with controllable fluidity, is an active research item in intelligent materials, has the characteristic of low-viscosity Newtonian fluid when no magnetic field is applied outside, has the characteristics of high-viscosity and low-fluidity Bingham fluid when a magnetic field is applied outside, and has the corresponding relation between the viscosity of the fluid and the magnetic flux.
In the use of attenuator, the friction between its inside damping medium and the body of rod, the piston head can produce a large amount of heats, and current magnetic current becomes liquid attenuator relies on the heat transfer effect of cylinder body material to carry out passive heat dissipation mostly, can't in time dispel the heat of cylinder body inside, leads to the attenuator impaired easily, especially when the attenuator is used for a long time, and the inside high temperature of cylinder body can reduce the life of attenuator. Therefore, we propose a magnetorheological fluid damper with active heat dissipation function.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a magnetorheological fluid damper with an active heat dissipation function, through the arrangement of a linkage rack, a support rotating shaft and a linkage gear, when the damper works, the movement of a piston head can enable the polarity of one end, close to a thin-skin sealing sleeve, of a driving and adjusting magnet to be continuously adjusted, so that the direction of the magnetic action force between the driving and adjusting magnet and an embedded magnet is continuously changed, further, one end, in contact with the magnetorheological fluid, of a heat dissipation rod can be continuously moved to the outside of a cylinder body and is directly contacted with air with lower external temperature, further, the heat dissipation can be actively carried out, the heat dissipation efficiency of the damper is greatly improved, the damper is prevented from being damaged due to temperature sensing, and when the damper is in a working state for a long time, an elastic balloon can be subjected to thermal expansion, and a refrigeration ball is extruded into water in an annular cavity, so that on the basis of the characteristic that a large amount of heat absorption can be caused by dissolving of saltpeter in water, provides a refrigeration effect, and further can further improve the heat dissipation efficiency of the damper.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A magnetorheological fluid damper with an active heat dissipation function comprises a cylinder body, wherein a piston head is movably arranged in the cylinder body, one end of the piston head is fixedly connected with a piston rod, the inner wall of the cylinder body is hermetically connected with an end cover, the piston rod penetrates through the end cover in a sliding manner and extends to the outside of the cylinder body, and is fixedly connected with a left connector, one end of the cylinder body, which is far away from the piston rod, is fixedly connected with a right connector, magnetorheological fluid is filled in the cylinder body, a pair of arc-shaped pipes are communicated with the outer walls of the upper side and the lower side of the cylinder body, a sealing film is hermetically connected to the inner wall of each arc-shaped pipe, a through hole is formed in the middle of each sealing film, arc-shaped heat dissipation rods are arranged on the upper side and the lower side of the cylinder body, a thin skin sealing sleeve matched with each heat dissipation rod is fixedly connected to the inner side of each sealing film, and a pair of linkage racks are fixedly connected to the two sides of the piston head, every the linkage rack all corresponds and is provided with one and rotates the support pivot of being connected with the cylinder body inner wall, the cover is equipped with the linkage gear on the outer wall of support pivot, the one end fixedly connected with of support pivot drives transfers magnet, embedded magnet is all inlayed and installed at the both ends of heat dissipation pole, fixed cover is equipped with the outer lantern ring on the outer wall of cylinder body, the equal fixedly connected with bracing piece in upper and lower both ends of outer lantern ring, the one end fixedly connected with stand pipe of outer lantern ring is kept away from to the bracing piece.
Furthermore, an annular cavity is formed in the outer collar, water is filled in the annular cavity, the support rod penetrates through the outer wall of the outer collar and extends into the annular cavity, a heat transfer rod is embedded in the support rod, one end of the heat transfer rod penetrates through the outer wall of the guide pipe and extends into the guide pipe, the other end of the heat transfer rod penetrates through the support rod and extends into the annular cavity, an elastic balloon is arranged at the top end of the annular cavity, air is filled in the elastic balloon, ball storage pipes penetrating through the outer wall of the outer collar are arranged on two sides of the elastic balloon, a plurality of refrigerating balls uniformly stacked up and down are filled in the ball storage pipes, an extrusion hole matched with the elastic balloon is formed in one side, close to the elastic balloon, of each ball storage pipe, a ball outlet hole is formed in one side, far away from the elastic balloon, of each ball outlet hole, and elastic baffles are fixedly connected to the inner walls on the upper side and the lower side of each ball outlet hole, the heat transfer rod positioned at the top end of the outer sleeve penetrates through the outer wall of the elastic balloon and extends into the elastic balloon, the heat transfer rod is fixedly connected with the elastic balloon, heat conduction ropes are fixedly connected to the two sides of the heat transfer rod, one end, far away from the heat transfer rod, of each heat conduction rope extends into water, the refrigerating ball is made of saltpeter, the elastic baffles are made of elastic metal sheet materials and abut against the elastic baffles, and through the combined arrangement of the heat transfer rod, the elastic balloon, the ball storage pipe, the refrigerating ball, the extrusion hole, the ball outlet hole, the elastic baffles and the heat conduction ropes, when the damper is in a working state for a long time, certain heat can be generated by friction between the heat dissipation rod and the guide pipe, the heat can be conducted into the elastic balloon by the heat transfer rod, so that the elastic balloon is heated and expanded, and the refrigerating ball at the lowest part is extruded by the elastic balloons and penetrates through the elastic baffles, Go out ball hole and landing to the aquatic in the annular cavity, and then dissolve in the endothermic characteristic in a large number of water based on the saltpeter, provide a refrigeration effect, this refrigeration effect not only can absorb the heat that heat dissipation rod and stand pipe friction produced, can also directly absorb the heat that the heat dissipation rod took out of from the cylinder body to can further improve the radiating efficiency of attenuator.
Furthermore, the perforation is matched with the heat dissipation rod, the heat dissipation rod penetrates through the perforation and is in sliding connection with the perforation, the thin-skin sealing sleeve is sleeved on the outer side of the heat dissipation rod and is soaked in the magnetorheological fluid, the heat dissipation rod is in sliding connection with the thin-skin sealing sleeve, and the sealing film and the thin-skin sealing sleeve can play a role in sealing and prevent the leakage of the magnetorheological fluid.
Further, fixedly connected with support ring on the inner wall of arc pipe, the support ring sets up in the outer wall of thin skin seal cover, and support ring and seal membrane fixed connection, and the support ring can play a setting effect to the thin skin seal cover under the gliding prerequisite of heat dissipation pole not hindering, prevents that the thin skin seal cover from warping.
Furthermore, a pair of linkage racks is symmetrically arranged and respectively positioned at the upper side and the lower side of the piston rod, the linkage gears are meshed with the corresponding linkage racks, the number of teeth of the linkage racks is half of that of the linkage gears, a pair of stroke limiting blocks are fixedly connected to the inner walls of the upper side and the lower side of the cylinder body, the pair of stroke limiting blocks are respectively positioned at the left side and the right side of the piston head, when the damper works, the piston head can reciprocate leftwards and rightwards, the piston head firstly moves leftwards to the stroke limiting block positioned at the left side in a movement stroke of the piston head, in the process, the linkage rack at the left side of the piston head can drive the corresponding linkage gear to rotate for half a circle, so that the polarity of one end, close to the thin-skin sealing sleeve, of the left-side driving magnet is adjusted, then the piston head can move rightwards to the stroke limiting block at the right side, in the process, the polarity of the left-side driving magnet can be adjusted again, the polarity of the right side driving and adjusting magnet can be also turned, finally, the polarity of the right side driving and adjusting magnet can be turned again in the process that the piston head moves back to the original point from the right side stroke limiting block, and therefore in one movement stroke of the piston head, the polarity of the driving and adjusting magnet close to one end of the corresponding thin-skin sealing sleeve can be turned twice.
Furthermore, the embedded magnets have the same polarity towards the outer end of the radiating rod, each embedded magnet has the same polarity towards one end of the radiating rod, the embedded magnets have opposite polarity towards the outer end of the radiating rod and the embedded magnets are opposite to each other, the radiating rod is arranged at one end of the thin-skin sealing sleeve and can be in indirect contact with magnetorheological fluid, so that heat in the cylinder body can be absorbed and outwards guided out for passive heat dissipation, the combined arrangement of the linkage rack, the supporting rotating shaft, the linkage gear, the driving and adjusting magnets and the embedded magnets is adopted, when the damper works, the motion of the piston head can drive the polarity of the driving and adjusting magnets to be changed, when the polarity of the driving and adjusting magnets close to one end of the thin-skin sealing sleeve is opposite to the polarity of the embedded magnets towards the outer end of the radiating rod, suction force can be generated between the driving and adjusting magnets, and when the polarity of the driving and adjusting magnets close to one end of the thin-skin sealing sleeve is the same as the polarity of the embedded magnets close to one end of the radiating rod The repulsion force can be generated between the driving and adjusting magnet and the embedded magnet, under the action of the attraction force and the repulsion force, the heat dissipation rod can continuously move back and forth between the pair of arc-shaped pipes, namely the heat dissipation rod can continuously move from the thin-skin sealing sleeve on one side of the piston head to the thin-skin sealing sleeve on the other side, so that one end of the heat dissipation rod in contact with the magnetorheological fluid can be continuously moved to the outside of the cylinder body and is in direct contact with the air with lower external temperature, the heat dissipation can be actively carried out, and the heat dissipation efficiency of the damper is greatly improved.
Furthermore, the guide pipe sets up to circular-arc with the radiating rod assorted, and the radiating rod runs through the guide pipe and with guide pipe sliding connection, the guide pipe can play a guide effect to the radiating rod, makes the radiating rod can be from the accurate thin skin seal cover that moves to the opposite side in the thin skin seal cover of one side.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the proposal leads the damper to work through the arrangement of the linkage rack, the supporting rotating shaft and the linkage gear, the movement of the piston head can make the polarity of one end of the driving and adjusting magnet close to the thin-skin sealing sleeve be continuously adjusted, thereby continuously changing the direction of the magnetic force between the driving and adjusting magnet and the embedded magnet, so that one end of the heat dissipation rod, which is in contact with the magnetorheological fluid, can continuously move to the outside of the cylinder body and is in direct contact with air with lower external temperature, thereby actively dissipating heat, greatly improving the heat dissipation efficiency of the damper, preventing the damper from being damaged due to temperature sensing, when the damper is in a working state for a long time, the elastic balloon is subjected to thermal expansion and extrudes the refrigerating balloon into water in the annular cavity, therefore, based on the characteristic that the saltpeter is dissolved in water and absorbs a large amount of heat, a refrigeration effect is provided, and the heat dissipation efficiency of the damper can be further improved.
(2) Through the heat transfer stick, the elasticity balloon, store up the bulb tube, the refrigeration ball, the extrusion hole, go out the ball hole, elastic baffle, the joint setting of heat conduction rope, make when the attenuator is in operating condition for a long time, friction between radiating rod and the stand pipe also can produce certain heat, the heat transfer stick can lead this heat to the elasticity balloon in, make the elasticity balloon expand by being heated, thereby make the refrigeration ball of elasticity balloon extrusion below, make it pass elastic baffle, go out ball hole and landing to the aquatic in the annular cavity, and then dissolve in the characteristic that water can be a large amount of endotherms based on the saltpeter, a refrigeration effect is provided, this refrigeration effect not only can absorb the heat that radiating rod and stand pipe friction produced, can also directly absorb the heat that the radiating rod took out from the cylinder body, thereby can further improve the radiating efficiency of attenuator.
(3) The perforation is matched with the heat dissipation rod, the heat dissipation rod penetrates through the perforation and is in sliding connection with the perforation, the thin-skin sealing sleeve is sleeved on the outer side of the heat dissipation rod and is soaked in the magnetorheological fluid, the heat dissipation rod is in sliding connection with the thin-skin sealing sleeve, and the sealing film and the thin-skin sealing sleeve can play a sealing role and prevent the magnetorheological fluid from leaking.
(4) Fixedly connected with support ring on the inner wall of arc pipe, the support ring sets up in the outer wall of thin skin seal cover, and support ring and seal membrane fixed connection, and the support ring can play a setting effect to the thin skin seal cover under the gliding prerequisite of heat dissipation pole that does not hinder, prevents that the thin skin seal cover from warping.
(5) The pair of linkage racks are symmetrically arranged and are respectively positioned at the upper side and the lower side of the piston rod, the linkage gears are meshed with the corresponding linkage racks, the number of teeth of the linkage racks is half of that of the linkage gears, a pair of stroke limiting blocks are fixedly connected to the inner walls of the upper side and the lower side of the cylinder body, the pair of stroke limiting blocks are respectively positioned at the left side and the right side of the piston head, when the damper works, the piston head can reciprocate leftwards and rightwards, in one motion stroke of the piston head, the piston head firstly moves leftwards to the stroke limiting block positioned at the left side, in the process, the linkage rack at the left side of the piston head can drive the corresponding linkage gears to rotate for half a circle, so that the polarity of one end, close to the thin-skin sealing sleeve, of the left-side driving and adjusting magnet is adjusted, then the piston head can move rightwards to the stroke limiting block at the right side, in the process, the polarity of the left-side driving and adjusting magnet can be adjusted again, and the polarity of the right-side driving and adjusting magnet can be adjusted, finally, in the process that the piston head moves back to the original point from the right stroke limiting block, the polarity of the right driving and adjusting magnet can be adjusted again, so that in one motion stroke of the piston head, the polarity of the driving and adjusting magnet close to one end of the corresponding thin-skin sealing sleeve can be adjusted twice.
(6) The heat dissipation rod is arranged at one end of the thin-skin sealing sleeve and can be in indirect contact with magnetorheological fluid, so that heat in the cylinder body can be absorbed and led out for passive heat dissipation, the combined arrangement of the linkage rack, the supporting rotating shaft, the linkage gear, the driving and adjusting magnet and the embedded magnet is adopted, when the damper works, the polarity of the driving and adjusting magnet can be driven to change due to the movement of the piston head, when the polarity of the driving and adjusting magnet close to one end of the thin-skin sealing sleeve is opposite to the polarity of the embedded magnet towards the outer end of the heat dissipation rod, attraction can be generated between the driving and adjusting magnet and the embedded magnet, when the polarity of the driving and adjusting magnet close to one end of the thin-skin sealing sleeve is the same as the polarity of the embedded magnet towards the outer end of the heat dissipation rod, repulsion can be generated between the driving and adjusting magnet and the embedded magnet, under the action of attraction and repulsion, the heat dissipation rod can continuously move back and forth between the pair of arc-shaped pipes, namely, therefore, one end of the heat dissipation rod, which is in contact with the magnetorheological fluid, can continuously move to the outside of the cylinder body and is in direct contact with air with lower external temperature, so that heat can be dissipated actively, and the heat dissipation efficiency of the damper is greatly improved.
(7) The stand pipe sets up to be circular-arc with the radiating rod assorted, and the radiating rod runs through the stand pipe and with stand pipe sliding connection, and the stand pipe can play a guide effect to the radiating rod, makes the radiating rod can follow in the thin skin seal cover of one side accurate removal to the thin skin seal cover of opposite side.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic cross-sectional view of the cylinder of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2 at B according to the present invention;
FIG. 5 is a schematic top view of the linkage gear of the present invention;
FIG. 6 is a schematic structural view of the piston head of the present invention moving to the left side of the stroke limiting block;
FIG. 7 is a schematic side view of the outer collar of the present invention;
FIG. 8 is an enlarged view of FIG. 7 at C according to the present invention;
fig. 9 is an enlarged view of the structure of fig. 8 at D according to the present invention.
The reference numbers in the figures illustrate:
101. a cylinder body; 102. a piston head; 103. a piston rod; 104. a left connector; 105. a right connector; 106. an end cap; 107. magnetorheological fluid; 201. an arc tube; 202. a sealing film; 203. perforating; 204. a heat dissipation rod; 205. a thin skin seal cartridge; 206. a support ring; 207. a linkage rack; 208. a support shaft; 209. a linkage gear; 210. driving and adjusting the magnet; 211. a magnet is embedded; 212. a travel limit block; 301. an outer collar; 302. a support bar; 303. a guide tube; 304. a heat transfer rod; 305. an elastic balloon; 306. a ball storage tube; 307. cooling the balls; 308. extruding the hole; 309. a ball outlet hole; 310. an elastic baffle plate; 311. a heat conducting rope.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, a magnetorheological fluid damper with active heat dissipation function comprises a cylinder 101, a piston head 102 is movably disposed in the cylinder 101, one end of the piston head 102 is fixedly connected with a piston rod 103, an end cover 106 is hermetically connected to the inner wall of the cylinder 101, the piston rod 103 slidably penetrates the end cover 106 and extends to the outside of the cylinder 101, and is fixedly connected with a left connector 104, one end of the cylinder 101, which is far away from the piston rod 103, is fixedly connected with a right connector 105, the cylinder 101 is filled with magnetorheological fluid 107, a pair of arc pipes 201 are communicated with the outer walls of the upper and lower sides of the cylinder 101, a seal film 202 is hermetically connected to the wall in the arc pipes 201, a through hole 203 is formed in the middle of the seal film 202, arc heat dissipation rods 204 are disposed on the upper and lower sides of the cylinder 101, a thin skin seal cover 205 matched with the heat dissipation rods 204 is fixedly connected to the inner side of the seal film 202, and the through hole 203 is matched with the heat dissipation rods 204, the heat dissipation rod 204 penetrates through the through hole 203 and is in sliding connection with the through hole 203, the thin-skin sealing sleeve 205 is sleeved on the outer side of the heat dissipation rod 204, the thin-skin sealing sleeve 205 is soaked in the magnetorheological fluid 107, the heat dissipation rod 204 is in sliding connection with the thin-skin sealing sleeve 205, the sealing film 202 and the thin-skin sealing sleeve 205 can play a sealing role, leakage of the magnetorheological fluid 107 is prevented, a supporting ring 206 is fixedly connected to the inner wall of the arc-shaped pipe 201, the supporting ring 206 is arranged on the outer wall of the thin-skin sealing sleeve 205, the supporting ring 206 is fixedly connected with the sealing film 202, the supporting ring 206 can play a shaping role on the premise that sliding of the heat dissipation rod 204 is not hindered, and deformation of the thin-skin sealing sleeve 205 is prevented.
Referring to fig. 2 and fig. 4-6, both sides of the piston head 102 are fixedly connected with a pair of linkage racks 207, each linkage rack 207 is correspondingly provided with a supporting rotating shaft 208 rotatably connected with the inner wall of the cylinder body 101, the outer wall of the supporting rotating shaft 208 is sleeved with a linkage gear 209, one end of the supporting rotating shaft 208 is fixedly connected with a driving and adjusting magnet 210, both ends of the heat dissipation rod 204 are respectively embedded with an embedded magnet 211, the pair of linkage racks 207 are symmetrically arranged and respectively positioned at the upper side and the lower side of the piston rod 103, the linkage gear 209 is engaged with the corresponding linkage rack 207, the number of teeth of the linkage racks 207 is half of that of the linkage gear 209, both inner walls of the upper side and the lower side of the cylinder body 101 are fixedly connected with a pair of stroke stoppers 212, the pair of stroke stoppers 212 are respectively positioned at the left side and the right side of the piston head 102, when the damper works, the piston head 102 reciprocates left and right, in a movement stroke of the piston head 102, the piston head 102 moves leftwards to the stroke limit block 212 positioned on the left side, in the process, the linkage rack 207 on the left side of the piston head 102 drives the corresponding linkage gear 209 to rotate for half a turn, so that the polarity of the left side driving magnet 210 close to one end of the thin skin sealing sleeve 205 is inverted, then the piston head 102 moves rightwards to the stroke limit block 212 on the right side, in the process, the polarity of the left side driving magnet 210 is inverted again, the polarity of the right side driving magnet 210 is also inverted, and finally, in the process that the piston head 102 moves from the right side stroke limit block 212 back to the original point, the polarity of the right side driving magnet 210 is also inverted again, so that in one motion stroke of the piston head 102, the polarity of the driving magnet 210 close to one end of the corresponding thin skin sealing sleeve 205 is inverted twice.
Referring to fig. 4-6, the two embedded magnets 211 have the same polarity towards the outer end of the heat dissipation rod 204, each driving and adjusting magnet 210 has the same polarity towards the end of the thin-skin sealing sleeve 205, and the polarity of the embedded magnet 211 towards the outer end of the heat dissipation rod 204 is opposite to the polarity of the driving and adjusting magnet 210 towards the end of the thin-skin sealing sleeve 205, and the end of the heat dissipation rod 204 in the thin-skin sealing sleeve 205 can indirectly contact with the magnetorheological fluid 107, so as to absorb the heat in the cylinder 101 and conduct the heat outwards for passive heat dissipation, and through the combined arrangement of the linkage rack 207, the support rotating shaft 208, the linkage gear 209, the driving and adjusting magnet 210 and the embedded magnet 211, when the damper works, the polarity of the driving and adjusting magnet 210 can be adjusted due to the movement of the piston head 102, and when the polarity of the driving and adjusting magnet 210 towards the end of the thin-skin sealing sleeve 205 is opposite to the polarity of the embedded magnet 211 towards the end of the heat dissipation rod 204, attraction can be generated between the driving and adjusting magnet 210 and the embedded magnet 211, when the polarity of one end of the driving and adjusting magnet 210 close to the thin-skin sealing sleeve 205 is the same as the polarity of one end of the embedded magnet 211 facing the outside of the heat dissipation rod 204, repulsion can be generated between the driving and adjusting magnet 210 and the embedded magnet 211, and under the action of the attraction and the repulsion, the heat dissipation rod 204 can continuously move back and forth between the pair of arc-shaped tubes 201, as shown in fig. 6, the heat dissipation rod 204 can continuously move from the thin-skin sealing sleeve 205 on one side of the piston head 102 to the thin-skin sealing sleeve 205 on the other side, so that the end of the heat dissipation rod 204, which is in contact with the magnetorheological fluid 107, can continuously move to the outside of the cylinder body 101 and is in direct contact with air with lower outside temperature, and further the heat dissipation can be actively performed, and the heat dissipation efficiency of the damper is greatly improved.
Referring to fig. 1, an outer collar 301 is fixedly sleeved on an outer wall of a cylinder body 101, support rods 302 are fixedly connected to upper and lower ends of the outer collar 301, a guide tube 303 is fixedly connected to one end of each support rod 302 away from the outer collar 301, the guide tube 303 is arc-shaped and is matched with the heat dissipation rod 204, the heat dissipation rod 204 penetrates through the guide tube 303 and is in sliding connection with the guide tube 303, and the guide tube 303 can guide the heat dissipation rod 204, so that the heat dissipation rod 204 can accurately move from the thin-skin sealing sleeve 205 on one side to the thin-skin sealing sleeve 205 on the other side.
Referring to fig. 7-9, an annular cavity is formed in an outer collar 301, water is filled in the annular cavity, a support rod 302 penetrates through an outer wall of the outer collar 301 and extends into the annular cavity, a heat transfer rod 304 is embedded in the support rod 302, one end of the heat transfer rod 304 penetrates through an outer wall of a guide tube 303 and extends into the guide tube 303, the other end of the heat transfer rod 304 penetrates through the support rod 302 and extends into the annular cavity, an elastic balloon 305 is disposed at a top end of the annular cavity, air is filled in the elastic balloon 305, ball storage tubes 306 penetrating through outer walls of the outer collar 301 are disposed on two sides of the elastic balloon 305, a plurality of refrigeration balls 307 uniformly stacked up and down are filled in the ball storage tubes 306, a squeezing hole 308 matched with the elastic balloon 305 is formed in one side of the ball storage tube 306 close to the elastic balloon 305, a ball outlet hole 305 is formed in one side of the ball storage tube 306 far away from the elastic balloon, elastic baffles 310 are fixedly connected to inner walls on upper and lower sides of the ball outlet hole 309, the heat transfer rod 304 at the top end of the outer collar 301 penetrates through the outer wall of the elastic balloon 305 and extends into the elastic balloon 305, the heat transfer rod 304 is fixedly connected with the elastic balloon 305, both sides of the heat transfer rod 304 are fixedly connected with heat conduction ropes 311, one end of each heat conduction rope 311, which is far away from the heat transfer rod 304, extends into water, the refrigeration ball 307 is made of saltpeter, the elastic baffle 310 is made of elastic metal sheet material, the two elastic baffles 310 abut against each other, when the damper is in a working state for a long time, a certain amount of heat can be generated by friction between the heat dissipation rod 204 and the guide pipe 303 through the combined arrangement of the heat transfer rod 304, the elastic balloon 305 is heated and expanded, and the elastic balloon 305 extrudes the refrigeration ball 307 at the lowest part, make it pass elastic baffle 310, play ball hole 309 and the aquatic of landing to the annular cavity in, and then based on the glauber's salt dissolve in the water characteristic that can a large amount of endotherms, provide a refrigeration effect, this refrigeration effect not only can absorb the heat that heat dissipation rod 204 and stand pipe 303 friction produced, can also directly absorb the heat that heat dissipation rod 204 took out from cylinder body 101 to can further improve the radiating efficiency of attenuator.
Through the arrangement of the linkage rack 207, the support rotating shaft 208 and the linkage gear 209, so that when the damper works, the movement of the piston head 102 can make the polarity of the driving magnet 210 close to one end of the thin-skin sealing sleeve 205 change continuously, thereby constantly changing the direction of the magnetic force between the driving and adjusting magnet 210 and the embedded magnet 211, so that the end of the heat dissipation rod 204 in contact with the magnetorheological fluid 107 can continuously move to the outside of the cylinder body 101 to be in direct contact with the air with lower outside temperature, thereby actively dissipating heat, greatly improving the heat dissipation efficiency of the damper, preventing the damper from being damaged due to temperature sensing, when the damper is in a working state for a long time, the elastic balloon 305 is heated and expanded, and the refrigerating balloon 307 is extruded into the water in the annular cavity, therefore, based on the characteristic that the saltpeter is dissolved in water and absorbs a large amount of heat, a refrigeration effect is provided, and the heat dissipation efficiency of the damper can be further improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a magnetorheological suspensions attenuator with initiative heat dissipation function, includes cylinder body (101), cylinder body (101) internalization is provided with piston head (102), the one end fixedly connected with piston rod (103) of piston head (102), sealing connection has end cover (106) on the inner wall of cylinder body (101), piston rod (103) slide and run through end cover (106) and extend to the outside of cylinder body (101) to fixedly connected with left connector (104), the one end fixedly connected with right connector (105) of piston rod (103) are kept away from in cylinder body (101), cylinder body (101) intussuseption is filled with magnetorheological suspensions (107), its characterized in that: the cylinder is characterized in that the outer walls of the upper side and the lower side of the cylinder body (101) are communicated with a pair of arc-shaped tubes (201), the wall in each arc-shaped tube (201) is connected with a sealing film (202) in a sealing manner, the middle of each sealing film (202) is provided with a through hole (203), the upper side and the lower side of the cylinder body (101) are provided with arc-shaped heat dissipation rods (204), the inner side of each sealing film (202) is fixedly connected with a thin leather sealing sleeve (205) matched with each heat dissipation rod (204), the two sides of the piston head (102) are fixedly connected with a pair of linkage racks (207), each linkage rack (207) is correspondingly provided with a support rotating shaft (208) rotatably connected with the inner wall of the cylinder body (101), the outer wall of each support rotating shaft (208) is sleeved with a linkage gear (209), one end of each support rotating shaft (208) is fixedly connected with a drive adjusting magnet (210), and embedded magnets (211) are embedded at the two ends of each heat dissipation rod (204), the cylinder body is characterized in that an outer sleeve ring (301) is fixedly sleeved on the outer wall of the cylinder body (101), the upper end and the lower end of the outer sleeve ring (301) are fixedly connected with supporting rods (302), and one end of each supporting rod (302) far away from the outer sleeve ring (301) is fixedly connected with a guide pipe (303).
2. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: set up the annular cavity in outer lantern ring (301), the annular cavity intracavity is filled with water, bracing piece (302) run through the outer wall of outer lantern ring (301) and extend to in the annular cavity, inlay in bracing piece (302) and install heat transfer stick (304), the outer wall that the one end of heat transfer stick (304) run through stand pipe (303) extends and to in stand pipe (303), and the other end of heat transfer stick (304) runs through bracing piece (302) and extends to in the annular cavity.
3. The magnetorheological fluid damper with active heat dissipation of claim 2, wherein: the top of toroidal cavity is provided with elasticity balloon (305), elasticity balloon (305) intussuseption is filled with the air, the both sides of elasticity balloon (305) all are provided with storage bulb pipe (306) that runs through outer lantern ring (301) outer wall setting, storage bulb pipe (306) intussuseption is filled with a plurality of refrigeration balls (307) that evenly stack from top to bottom, store up one side that bulb pipe (306) are close to elasticity balloon (305) and seted up with elasticity balloon (305) assorted extrusion hole (308), store up one side that elasticity balloon (305) were kept away from in bulb pipe (306) and seted up out bulb hole (309), go out equal fixedly connected with elastic baffle (310) on the inner wall of both sides about bulb hole (309).
4. The magnetorheological fluid damper with active heat dissipation function of claim 3, wherein: the heat transfer rod (304) located outer lantern ring (301) top run through the outer wall of elasticity balloon (305) and extend to in elasticity balloon (305), this heat transfer rod (304) and elasticity balloon (305) fixed connection, and the equal fixedly connected with heat conduction rope (311) in both sides of this heat transfer rod (304), the one end that heat transfer rod (304) were kept away from in heat conduction rope (311) extends and inserts aquatic, refrigeration ball (307) adopt the niter to make, elastic baffle (310) adopt elasticity sheetmetal material to make, and two elastic baffle (310) offset.
5. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: the heat dissipation device is characterized in that the through hole (203) is matched with the heat dissipation rod (204), the heat dissipation rod (204) penetrates through the through hole (203) and is in sliding connection with the through hole (203), the thin-skin sealing sleeve (205) is sleeved on the outer side of the heat dissipation rod (204), the thin-skin sealing sleeve (205) is soaked in magnetorheological fluid (107), and the heat dissipation rod (204) is in sliding connection with the thin-skin sealing sleeve (205).
6. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: fixedly connected with support ring (206) on the inner wall of arc pipe (201), support ring (206) set up in the outer wall of thin skin seal cover (205), and support ring (206) and seal membrane (202) fixed connection.
7. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: the pair of linkage racks (207) are symmetrically arranged and are respectively positioned on the upper side and the lower side of the piston rod (103), the linkage gear (209) is meshed with the corresponding linkage racks (207), and the number of teeth of the linkage racks (207) is half of that of the linkage gear (209).
8. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: the inner walls of the upper side and the lower side of the cylinder body (101) are fixedly connected with a pair of stroke limiting blocks (212), and the stroke limiting blocks (212) are respectively located on the left side and the right side of the piston head (102).
9. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: the embedded magnets (211) have the same polarity towards the outer end of the heat dissipation rod (204), each driving and adjusting magnet (210) has the same polarity close to one end of the thin-skin sealing sleeve (205), and the polarity of the embedded magnets (211) towards the outer end of the heat dissipation rod (204) is opposite to the polarity of the driving and adjusting magnet (210) close to one end of the thin-skin sealing sleeve (205).
10. The magnetorheological fluid damper with active heat dissipation of claim 1, wherein: the guide pipe (303) is arranged to be arc-shaped and matched with the heat dissipation rod (204), and the heat dissipation rod (204) penetrates through the guide pipe (303) and is in sliding connection with the guide pipe (303).
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Application publication date: 20210907 |