CN209990839U - Shock absorber device - Google Patents
Shock absorber device Download PDFInfo
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- CN209990839U CN209990839U CN201920775848.XU CN201920775848U CN209990839U CN 209990839 U CN209990839 U CN 209990839U CN 201920775848 U CN201920775848 U CN 201920775848U CN 209990839 U CN209990839 U CN 209990839U
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- magnetorheological
- magnetic suspension
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Abstract
The utility model relates to a shock absorber device, this shock absorber device includes a shock attenuation cylinder body, the fixed unable adjustment base that is equipped with in the middle part of shock attenuation cylinder body inner wall, top at unable adjustment base is equipped with the magnetic suspension attenuator, below at unable adjustment base is equipped with the magneto rheological damper, the magnetic suspension attenuator is including the magnetic suspension piston assembly who locates shock attenuation cylinder body inner wall top, main magnet subassembly, and the movable block, the magneto rheological damper is including the fixed movable post of locating unable adjustment base's lower surface, locate the piston rod of the bottom surface of movable post, the magneto rheological baffle and locate the magneto rheological piston assembly of shock attenuation cylinder body inner wall bottom, the orifice has been seted up on the magneto rheological baffle, it has the magneto rheological fluid to fill in the inside of shock. The utility model provides a shock absorber device when guaranteeing the shock attenuation effect, can prolong the life of shock absorber.
Description
Technical Field
The utility model relates to a bumper shock absorber equipment technical field, in particular to bumper shock absorber device.
Background
With the continuous development of economy and the continuous progress of the automobile industry, automobiles become the most important transportation tool in daily life of people. And with the acceleration of updating, the whole quality of the automobile is also obviously improved.
For automobiles, the shock absorber is used as a core part of an automobile suspension and has the function of attenuating vibration caused by exciting road surface impact and effectively reducing impact load on parts so as to ensure the stability of the automobile during braking, turning and accelerating. The magnetorheological damper is a novel semi-active control suspension, changes the rheological property of the magnetorheological fluid in the magnetorheological damper through an external control electric field, and has high stability and controllability, but the temperature rise phenomenon of the magnetorheological damper can influence the stability of the magnetorheological damper under a long-time working state. The magnetic suspension damper is in non-mechanical contact, so that the loss of the traditional vibration absorber caused by mechanical friction is reduced, but the vibration reduction effect is poor when the vibration intensity is high.
Therefore, how to design a shock absorber capable of effectively avoiding the temperature rise phenomenon and having a better shock absorption effect becomes an important research topic of researchers.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model discloses an in order to solve current bumper shock absorber device, can't avoid the temperature rise phenomenon and improve the problem that the shock attenuation effect combined together effectively.
The utility model provides a shock absorber device, wherein, comprises a shock absorption cylinder body, a fixed base is fixedly arranged at the middle part of the inner wall of the shock absorption cylinder body, a magnetic suspension damper is arranged above the fixed base, a magneto-rheological damper is arranged below the fixed base, the magnetic suspension damper comprises a magnetic suspension piston component arranged at the top part of the inner wall of the shock absorption cylinder body, a main magnet component arranged between the magnetic suspension piston component and the fixed base, and a moving block arranged between the main magnet components, the main magnet component is used for generating a magnetic suspension repulsive force under the power-on state of a magnetic suspension coil to absorb shock, the magneto-rheological damper comprises a movable column fixedly arranged at the lower surface of the fixed base, a piston rod arranged at the bottom surface of the movable column, a magneto-rheological baffle and a magneto-rheological piston component arranged at the bottom part of the inner wall of the shock absorption cylinder body, and the magnetorheological baffle is provided with an orifice, and the damping cylinder body is filled with magnetorheological fluid.
The shock absorber device provided by the utility model comprises a shock absorbing cylinder body, wherein a fixed base is arranged in the shock absorbing cylinder body, a magnetic suspension damper is arranged above the fixed base, a magneto-rheological damper is arranged below the fixed base, wherein the magnetic suspension damper comprises a magnetic suspension piston assembly arranged on the top of the inner wall of the damping cylinder body and a main magnet assembly arranged between the magnetic suspension piston assembly and the fixed base, and a movable block arranged between the main magnet components, the rheological damper comprises a movable column fixedly arranged on the lower surface of the fixed base, a piston rod arranged on the bottom surface of the movable column, a magnetorheological baffle plate and a magnetorheological piston component arranged at the bottom of the inner wall of the damping cylinder body, in the actual working process, if the shock absorber is in a low-load working state, the magnetic suspension damping coil is not electrified, the upper main magnet carried by the moving block is contacted with the supporting block, and the magnetic suspension damper does not work; in addition, the magnetorheological damping coil is electrified, so that the magnetic field in the throttling hole in the magnetorheological damper is enhanced, the resistance of the magnetorheological fluid passing through the throttling hole is increased, and the magnetorheological damper outputs magnetorheological damping force to absorb shock; if the temperature of the magnetorheological fluid in the magnetorheological damper is too high, the magnetic suspension damping coil is electrified, the magnetorheological damping coil is not electrified, and repulsive force is generated between the upper main magnet and the lower main magnet in the magnetic suspension damper to output magnetic suspension damping force for damping. The utility model provides a shock absorber device when guaranteeing the shock attenuation effect, can prolong the life of shock absorber.
The shock absorber device is characterized in that the magnetic suspension piston assembly comprises a magnetic suspension piston column and a magnetic suspension piston column ring arranged at the top of the magnetic suspension piston column, a first magnetic suspension rubber gasket is fixedly arranged on the bottom surface of the magnetic suspension piston column, and a second magnetic suspension rubber gasket is fixedly arranged on the upper surface of the fixed base.
The shock absorber device comprises a shock absorber body, a main magnet assembly and a damping cylinder body, wherein the shock absorber body is provided with a shock absorber, the shock absorber device comprises a main magnet assembly and a main magnet assembly, the main magnet assembly comprises an upper main magnet and a lower main magnet which are oppositely arranged, the upper main magnet is located above the moving block, the lower main magnet is located below the moving block, a sliding rail is fixedly arranged on the inner wall of the shock absorber body, the moving block moves up and down in the vertical direction along the sliding rail, and the upper main magnet is clamped in the moving.
The shock absorber device is characterized in that a supporting block is fixedly arranged on the inner wall of the shock absorption cylinder body, the supporting block is used for supporting the upper main magnet in the non-operating state of the magnetic suspension damper, and a magnetic suspension damping coil is further arranged on the periphery of the lower main magnet.
The shock absorber device is characterized in that a sealing guide piece is arranged in the movable column, the piston rod is fixedly arranged in the sealing guide piece, the piston rod and the movable column are vertically arranged, a coil lead is led out from the piston rod and is used for being connected with a magnetic suspension damping coil and a magneto-rheological damping coil.
The damper device is characterized in that the magnetorheological damper coil is further arranged on the magnetorheological baffle and is positioned on the inner side of the throttling hole, and the free tail end of the piston rod penetrates through the magnetorheological baffle.
The damper device is characterized in that a magnetorheological rubber gasket is arranged on the lower portion of the inner wall of the damping cylinder body, and the lower surface of the magnetorheological rubber gasket is connected with the magnetorheological piston assembly.
The damper device is characterized in that the magnetorheological piston assembly comprises magnetorheological piston columns fixedly connected with one another and a magnetorheological piston column ring arranged at the bottom of each magnetorheological piston column, and the upper surfaces of the magnetorheological piston columns are fixedly connected with the lower surfaces of the magnetorheological rubber gaskets.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic view of an overall structure of a shock absorber device according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of the "V" portion of the shock absorber device shown in FIG. 1;
FIG. 3 is an enlarged view of the structure of the "M" portion of the shock absorber device shown in FIG. 1;
fig. 4 is a schematic structural view of the working principle of the shock absorber device according to the first embodiment of the present invention.
Description of the main symbols:
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For automobiles, the shock absorber is used as a core part of an automobile suspension and has the function of attenuating vibration caused by exciting road surface impact and effectively reducing impact load on parts so as to ensure the stability of the automobile during braking, turning and accelerating. The magnetorheological damper is a novel semi-active control suspension, changes the rheological property of the magnetorheological fluid in the magnetorheological damper through an external control electric field, and has high stability and controllability, but the temperature rise phenomenon of the magnetorheological damper can influence the stability of the magnetorheological damper under a long-time working state. The magnetic suspension damper is in non-mechanical contact, so that the loss of the traditional vibration absorber caused by mechanical friction is reduced, but the vibration reduction effect is poor when the vibration intensity is high. Therefore, how to design a shock absorber capable of effectively avoiding the temperature rise phenomenon and having a better shock absorption effect becomes an important research topic of researchers.
Example one
In order to solve the technical problem, the utility model provides a shock absorber device please refer to and draw together 1 to 4, right the utility model provides a shock absorber device, including a shock attenuation cylinder body 11, at the fixed unable adjustment base 20 that is equipped with in middle part of this shock attenuation cylinder body 11 inner wall, be equipped with the magnetic suspension attenuator in unable adjustment base 20's top, be equipped with the magneto rheological attenuator in unable adjustment base 20's below.
Referring to fig. 1, for the magnetic suspension damper, the magnetic suspension damper includes a magnetic suspension piston assembly 12 disposed on the top of the inner wall of a damping cylinder 11, a main magnet assembly 14 disposed between the magnetic suspension piston assembly 12 and a fixed base 20, and a moving mass disposed between the main magnet assembly 14. In the present embodiment, the main magnet assembly 14 is used for generating a magnetic levitation repulsive force in the energized state of the magnetic levitation coil to perform damping.
Specifically, the magnetic levitation piston assembly 12 includes a magnetic levitation piston column 121 and a magnetic levitation piston column ring 122 disposed on the top of the magnetic levitation piston column 121. A first magnetic suspension rubber gasket 171 is fixedly arranged on the bottom surface of the magnetic suspension piston column 121, and a second magnetic suspension rubber gasket 172 is fixedly arranged on the upper surface of the fixed base 20.
The main magnet assembly 14 is disposed between the first magnetic suspension rubber gasket 171 and the second magnetic suspension rubber gasket 172. The main magnet assembly 14 includes an upper main magnet 141 and a lower main magnet 142 disposed opposite to each other, wherein the upper main magnet 141 is located above the moving mass 13, the lower main magnet 142 is located below the moving mass 13, and a magnetic levitation damping coil 16 is further disposed on an outer periphery of the lower main magnet 142.
It should be added that, as can be seen from fig. 1, a slot is opened on the upper portion of the moving block 13, and the slot is used for placing the upper main magnet 141. In addition, a slide rail 111 is fixedly arranged on the inner wall of the damping cylinder 11, the movable block 13 can move up and down along the slide rail 111 in the vertical direction, and the upper main magnet 141 is clamped in the movable block 13. Meanwhile, a support block 15 is fixedly disposed on the inner wall of the damping cylinder 11, and the support block 15 is used for supporting the upper main magnet 141 when the magnetic suspension damper is in an inoperative state.
For the above mentioned magnetorheological damper, the magnetorheological damper includes a movable column 21 fixedly disposed on the lower surface of the fixed base 20, a piston rod 22 disposed on the bottom surface of the movable column 21, a magnetorheological baffle 23, and a magnetorheological piston assembly 25 disposed on the bottom of the inner wall of the damping cylinder 11. In this embodiment, the movable column 21, the piston rod 22, the magnetorheological baffle 23 and the magnetorheological piston assembly 25 are sequentially arranged from top to bottom.
A seal guide 211 is provided in the movable column 21, and the piston rod 22 is fixedly provided in the seal guide 211. As can be seen from fig. 2, the piston rod 22 is vertically disposed with respect to the movable column 21. A coil lead 221 is led out from the piston rod 22, and the coil lead 221 is used for connecting the magnetic suspension damping coil 16 and the magnetorheological damping coil 231. The magnetorheological baffle 23 is arranged along the horizontal direction, and the magnetorheological piston assembly 25 is arranged at the bottommost end of the inner wall of the damping cylinder body 11.
For the magnetorheological damper 23, the magnetorheological damper 23 is provided with an orifice 232, and a magnetorheological damping coil 231 is disposed in the magnetorheological damper 23. In the present embodiment, the magnetorheological damping coil 231 is disposed inside the orifice 232, and the free end of the piston rod 22 is inserted into the magnetorheological damper 23. Note that the inner space between the aforementioned magnetorheological damper 23 and the movable column 21 is filled with a magnetorheological fluid.
Further, a magnetorheological rubber gasket 26 is arranged on the lower portion of the inner wall of the damping cylinder 11, and the lower surface of the magnetorheological rubber gasket 26 is connected with the magnetorheological piston assembly 25. In this embodiment, the aforementioned magnetorheological piston assembly 25 includes a magnetorheological piston post 252 fixedly connected to each other and a magnetorheological piston post ring 252 disposed at the bottom of the magnetorheological piston post 252, and the upper surface of the magnetorheological piston post 251 is fixedly connected to the lower surface of the magnetorheological rubber gasket 26. The free end of the magnetorheological piston collar 252 is connected to the vehicle suspension for damping vibrations transmitted by the vehicle suspension.
Example two
The utility model discloses still provide a control method of bumper shock absorber device as above, wherein, control method includes following step:
(1) when the shock absorber is judged to be in a low-load working state (corresponding to the situation that the automobile runs on a relatively flat road surface, and the suspension is in a low-load state), the magnetic suspension damping coil 16 in the magnetic suspension damper serving as the auxiliary cylinder is not electrified, the upper main magnet 141 carried by the movable block 13 is in contact with the supporting block 15, and the magnetic suspension damper does not work; meanwhile, the magnetorheological damping coil 231 in the magnetorheological damper is electrified, so that the magnetic field in the throttling hole 232 in the magnetorheological damper is enhanced, the resistance of the magnetorheological fluid passing through the throttling hole 232 is increased (conversely, the current is reduced, and the damping force is also reduced), and the magnetorheological damper can output magnetorheological damping force to absorb shock through the adjustment of the input current;
(2) when the automobile runs on an unstable road surface, the suspension is in a high-load state, and the temperature sensor 24 detects that the temperature of the magnetorheological fluid in the magnetorheological damper is too high, the magnetic suspension damping coils 231 in the magnetic suspension damper are electrified, so that a magnetic field is generated between the upper main magnet 141 and the lower main magnet 142 in the magnetic suspension damper, the repulsion force between the same magnetic poles outputs damping force, and the magnetic suspension damper is in a working state as an auxiliary cylinder; the magneto-rheological damping coil 231 in the magneto-rheological damper is not electrified, the damping force of the magneto-rheological damping liquid is not adjustable, and the magneto-rheological damper enters a passive working state; at the moment, the two dampers are connected in series to work, so that the damping effect is ensured, and meanwhile, a cooling opportunity is provided for the magnetorheological damper, so that the service life of the damper device is prolonged.
When the temperature of the magnetorheological fluid of the magnetorheological damper is reduced to a proper working temperature, the singlechip control device controls the coil of the magnetorheological damper to be electrified and enters the working state of the master cylinder again; the magnetic suspension damper coil is not electrified and is in a 'rest' state, and the operation is repeated in a reciprocating way.
The shock absorber device provided by the utility model comprises a shock absorbing cylinder body, wherein a fixed base is arranged in the shock absorbing cylinder body, a magnetic suspension damper is arranged above the fixed base, a magneto-rheological damper is arranged below the fixed base, wherein the magnetic suspension damper comprises a magnetic suspension piston assembly arranged on the top of the inner wall of the damping cylinder body and a main magnet assembly arranged between the magnetic suspension piston assembly and the fixed base, and a movable block arranged between the main magnet components, the rheological damper comprises a movable column fixedly arranged on the lower surface of the fixed base, a piston rod arranged on the bottom surface of the movable column, a magnetorheological baffle plate and a magnetorheological piston component arranged at the bottom of the inner wall of the damping cylinder body, in the actual working process, if the shock absorber is in a low-load working state, the magnetic suspension damping coil is not electrified, the upper main magnet carried by the moving block is contacted with the supporting block, and the magnetic suspension damper does not work; in addition, the magnetorheological damping coil is electrified, so that the magnetic field in the throttling hole in the magnetorheological damper is enhanced, the resistance of the magnetorheological fluid passing through the throttling hole is increased, and the magnetorheological damper outputs magnetorheological damping force to absorb shock; if the temperature of the magnetorheological fluid in the magnetorheological damper is too high, the magnetic suspension damping coil is electrified, the magnetorheological damping coil is not electrified, and repulsive force is generated between the upper main magnet and the lower main magnet in the magnetic suspension damper to output magnetic suspension damping force for damping. The utility model provides a shock absorber device when guaranteeing the shock attenuation effect, can prolong the life of shock absorber.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A shock absorber device is characterized by comprising a shock absorption cylinder body, wherein a fixed base is fixedly arranged in the middle of the inner wall of the shock absorption cylinder body, a magnetic suspension damper is arranged above the fixed base, a magnetorheological damper is arranged below the fixed base, the magnetic suspension damper comprises a magnetic suspension piston assembly arranged at the top of the inner wall of the shock absorption cylinder body, a main magnet assembly arranged between the magnetic suspension piston assembly and the fixed base, and a moving block arranged between the main magnet assemblies, the main magnet assembly is used for generating a magnetic suspension repulsive force to absorb shock under the power-on state of a magnetic suspension coil, the magnetorheological damper comprises a movable column fixedly arranged on the lower surface of the fixed base, a piston rod arranged on the bottom surface of the movable column, a magnetorheological baffle and a magnetorheological piston assembly arranged at the bottom of the inner wall of the shock absorption cylinder body, and the magnetorheological baffle is provided with an orifice, and the damping cylinder body is filled with magnetorheological fluid.
2. The shock absorber device as claimed in claim 1, wherein the magnetic suspension piston assembly comprises a magnetic suspension piston column and a magnetic suspension piston column ring arranged on the top of the magnetic suspension piston column, a first magnetic suspension rubber gasket is fixedly arranged on the bottom surface of the magnetic suspension piston column, and a second magnetic suspension rubber gasket is fixedly arranged on the upper surface of the fixing base.
3. The damper device according to claim 1, wherein the main magnet assembly comprises an upper main magnet and a lower main magnet which are oppositely arranged, the upper main magnet is located above the moving block, the lower main magnet is located below the moving block, a sliding rail is further fixed on an inner wall of the damping cylinder, the moving block moves up and down in a vertical direction along the sliding rail, and the upper main magnet is clamped in the moving block.
4. The shock absorber device according to claim 3, wherein a support block is further fixedly provided on an inner wall of the damping cylinder, the support block is configured to support the upper main magnet when the magnetic suspension damper is in an inoperative state, and a magnetic suspension damping coil is further provided on an outer periphery of the lower main magnet.
5. The damper device according to claim 1, wherein a sealing guide is provided in said movable post, said piston rod is fixedly provided in said sealing guide, said piston rod is vertically provided with said movable post, a coil lead is led out from said piston rod, said coil lead is used for connecting a magnetic suspension damping coil and a magnetorheological damping coil.
6. The shock absorber device according to claim 5, wherein the magnetorheological damping coil is further disposed on the magnetorheological damper plate, the magnetorheological damping coil is located inside the orifice, and the free end of the piston rod is inserted into the magnetorheological damper plate.
7. The damper device according to claim 5, wherein a magnetorheological rubber gasket is arranged on the lower portion of the inner wall of the damping cylinder body, and the lower surface of the magnetorheological rubber gasket is connected with the magnetorheological piston assembly.
8. The damper device according to claim 1, wherein the magnetorheological piston assembly comprises magnetorheological piston columns fixedly connected with each other and a magnetorheological piston column ring arranged at the bottom of the magnetorheological piston columns, and the upper surfaces of the magnetorheological piston columns are fixedly connected with the lower surfaces of the magnetorheological rubber gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775848.XU CN209990839U (en) | 2019-05-27 | 2019-05-27 | Shock absorber device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775848.XU CN209990839U (en) | 2019-05-27 | 2019-05-27 | Shock absorber device |
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| Publication Number | Publication Date |
|---|---|
| CN209990839U true CN209990839U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920775848.XU Active CN209990839U (en) | 2019-05-27 | 2019-05-27 | Shock absorber device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107640A (en) * | 2019-05-27 | 2019-08-09 | 江西科技学院 | Dampening arrangement and its control method |
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2019
- 2019-05-27 CN CN201920775848.XU patent/CN209990839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107640A (en) * | 2019-05-27 | 2019-08-09 | 江西科技学院 | Dampening arrangement and its control method |
| CN110107640B (en) * | 2019-05-27 | 2024-02-09 | 江西科技学院 | Shock absorber device and control method thereof |
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