CN214367457U - Magnetorheological automobile shock absorber - Google Patents
Magnetorheological automobile shock absorber Download PDFInfo
- Publication number
- CN214367457U CN214367457U CN202120323950.3U CN202120323950U CN214367457U CN 214367457 U CN214367457 U CN 214367457U CN 202120323950 U CN202120323950 U CN 202120323950U CN 214367457 U CN214367457 U CN 214367457U
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- Prior art keywords
- piston
- fixing sleeve
- magnetorheological
- piston rod
- shock absorber
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 31
- 230000035939 shock Effects 0.000 title claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000007667 floating Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 abstract description 15
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 16
- 238000003466 welding Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The magnetorheological automobile shock absorber comprises a piston rod assembly, wherein the piston rod assembly comprises a piston rod, a piston and an electromagnetic coil; the piston rod is hollow to form a lead leading-out channel, and a leading-out lead of the electromagnetic coil is led out from the lead leading-out channel; the piston is provided with a long through hole penetrating through the two ends; the piston comprises a piston fixing sleeve sleeved outside the electromagnetic coil, and an A pressing block and a B pressing block which are respectively matched with the two ends of the electromagnetic coil in a centering manner; one end of the piston fixing sleeve is riveted to form an A flanging which is bent inwards, and the A pressing block is pressed and fixed; the other end of the piston fixing sleeve is riveted to form a B flanging which is bent inwards, and the A pressing block is pressed and fixed; a piston ring groove is arranged on the piston fixing sleeve, and a piston ring is arranged in the piston ring groove; a floating piston is arranged in the oil storage cylinder below the piston. The utility model discloses a magnetic current becomes automobile shock absorber ware can be more accurate adjust damping force, and production process processing environmental protection, economy moreover.
Description
Technical Field
The utility model belongs to the technical field of the bumper shock absorber technique and specifically relates to a magnetic current becomes automobile shock absorber ware is related to.
Background
With the development of economy and science and technology, automobiles have become the most important transportation means for people to go out. In the use of automobiles, safety and comfort are very important issues. Shock absorbers are a key component for ensuring the safety and comfort of automobiles. The traditional shock absorber cannot adjust the damping according to the specific road condition reasonably, and has limitation.
The magneto-rheological automobile shock absorber changes the viscosity of working fluid (magneto-rheological fluid) in the shock absorber by introducing a magnetic field, so that the shock absorber obtains different damping forces when in work, and better comfort is brought to users. In the prior art, a piston rod assembly provided for a magnetorheological automobile shock absorber generally comprises a plug rod, a piston arranged on the piston rod, and an electromagnetic coil arranged in the piston; the piston rod is hollow to form a lead leading-out channel, and a leading-out lead of the electromagnetic coil is led out from the lead leading-out channel; the piston is provided with a long through hole penetrating through two ends for the working fluid to flow through to generate damping force; when the damping force control device works, the electromagnetic coil is electrified according to needs, and different damping force requirements can be obtained by changing the electrifying time and the current. The piston rod assembly equipped in the existing magnetorheological automobile shock absorber product has the advantages that as the compression blocks at the two ends of the piston are fixed by welding, the high temperature generated during welding easily causes the local deformation and oxidation of the electromagnetic coil, and further causes the magnetic field generated during working to have larger deviation with the design value, the damping force consistent with the design value cannot be obtained, and the defect position of the electromagnetic coil is uncertain, so that the damping force cannot be counteracted by program compensation. In addition, welding has the problems of high pollution and low economy. In addition, the viscosity of the magnetorheological working fluid is influenced by the pressure thereof, and therefore, in order to accurately control the viscosity of the magnetorheological working fluid, it is necessary to control the pressure of the magnetorheological working fluid.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a magneto-rheological automobile shock absorber. The utility model discloses a magnetic current becomes automobile shock absorber ware can be more accurate adjust the damping force to provide more comfortable experience for the user, production process processing environmental protection, economy moreover.
The application provides the following technical scheme: the magneto-rheological automobile shock absorber comprises a piston rod assembly, wherein the piston rod assembly comprises a piston rod, a piston arranged on the piston rod and an electromagnetic coil arranged in the piston; the piston rod is hollow to form a lead leading-out channel, and a leading-out lead of the electromagnetic coil is led out from the lead leading-out channel; the piston is provided with a long through hole penetrating through two ends; the piston is arranged in the oil storage cylinder and forms sliding fit with the inner wall of the oil storage cylinder; the piston rod extends out of the upper end of the oil storage cylinder; the piston comprises a piston fixing sleeve sleeved outside the electromagnetic coil, and an A pressing block and a B pressing block which are respectively matched with the two ends of the electromagnetic coil in a centering manner; one end of the piston fixing sleeve is riveted to form an A flanging which is bent inwards, and the A pressing block is pressed and fixed; the other end of the piston fixing sleeve is riveted to form a B flanging which is bent inwards, and the A pressing block is pressed and fixed; the piston fixing sleeve is provided with a piston ring groove, and a piston ring is arranged in the piston ring groove; in the oil storage cylinder, a floating piston is arranged below the piston to divide the oil storage cylinder into a magnetorheological working fluid cavity and a compressed air cavity, magnetorheological working fluid is filled in the magnetorheological working fluid cavity, compressed air is filled in the compressed air cavity, and the upper end of the oil storage cylinder is sealed through a guide oil seal assembly.
Compared with the prior art, the utility model discloses a fix the A compact heap and the B compact heap of piston tip with riveting soon, rivet soon the process can not produce high temperature, and rivet soon required pressure not very big, can not cause the damage to solenoid, the high temperature that produces when welding that has avoided the welding process that uses among the prior art to produce easily leads to solenoid to appear local deformation, the problem of oxidation to can more accurate control solenoid produces the magnetic field, and then obtain more accurate damping force, provide better travelling comfort for the user; in addition, the utility model adopts the spin riveting to fix the A compact block and the B compact block, so that the reliability is guaranteed, and the welding is more environment-friendly and economical compared with the welding; furthermore, the utility model discloses a below at the piston assembly sets up floating piston to at floating piston's downside packing compressed air, atmospheric pressure that can control compression control controls the pressure of magnetic current becomes working solution, thereby is favorable to the viscosity of more accurate control magnetic current becomes working solution.
Preferably, in the magnetorheological automobile shock absorber, a piston ring groove is respectively formed on the piston fixing sleeve near two ends of the piston fixing sleeve. The outer diameter of the piston fixing sleeve is provided with a double-piston ring groove structure, so that the functions of guiding, wear reducing and wear resisting are achieved.
Preferably, in the magnetorheological automobile shock absorber, the compression block a may be fixed to the piston rod by a snap spring. The clamping spring is adopted for fixing, the reliability is guaranteed, the implementation is easy, and the cost is low.
Preferably, in the magnetorheological automobile shock absorber, a wire pressing and sealing assembly is arranged at an outlet of the wire leading-out channel. Through setting up wire and compressing tightly and seal assembly, the inside guard action that plays of interior bumper shock absorber. Furthermore, the wire pressing and sealing assembly comprises a sealing ring and a pressing ferrule arranged on the outer side of the sealing ring. The structure has high reliability and is easy to implement.
Description of the drawings:
FIG. 1 is a schematic structural view of a magnetorheological automobile shock absorber according to the present invention;
fig. 2 is a schematic structural view of a piston rod assembly in the magnetorheological automobile shock absorber of the present invention.
The reference numbers in the figures are: 1-a piston rod; 2-piston, 201-piston fixing sleeve, 2011-A flanging, 2012-B flanging, 2013-piston ring groove, 202-A pressing block, 203-B pressing block and 204-piston ring; 3-an electromagnetic coil; 4-a clamp spring; 5-sealing ring; 6-pressing the ferrule; 7-guiding oil seal assembly; 8-a floating piston; 9-oil storage cylinder.
Detailed Description
The technical solutions of the present application will be further described with reference to the drawings and the detailed description (examples), but the present application is not limited thereto. The details which are not described in detail below are all common knowledge in the art.
Referring to fig. 1, the magnetorheological automobile shock absorber of the present invention comprises a piston rod assembly, wherein the piston rod assembly comprises a piston rod 1, a piston 2 arranged on the piston rod 1, and an electromagnetic coil 3 arranged in the piston 2; the piston rod 1 is hollow to form a lead leading-out channel, and a leading-out lead of the electromagnetic coil 3 is led out from the lead leading-out channel; the piston 2 is provided with a long through hole penetrating through two ends; in the utility model, the piston 2 is arranged in the oil storage cylinder 9 and forms sliding fit with the inner wall of the oil storage cylinder 9; the piston rod 1 extends out from the upper end of the oil storage cylinder 9; the piston rod assembly comprises a piston rod 1, a piston 2 arranged on the piston rod 1 and an electromagnetic coil 3 arranged in the piston 2; the piston rod 1 is hollow to form a lead leading-out channel, and a leading-out lead of the electromagnetic coil 3 is led out from the lead leading-out channel; the piston 2 is provided with a long through hole penetrating through two ends; the piston 2 comprises a piston fixing sleeve 201 sleeved outside the electromagnetic coil 3, and an A pressing block 202 and a B pressing block 203 which are respectively matched with two ends of the electromagnetic coil 3 in a centering manner; one end of the piston fixing sleeve 201 is riveted to form an A flange 2011 which is bent inwards, so that the A pressing block 202 is pressed and fixed; the other end of the piston fixing sleeve 201 is riveted to form a B flanging 2012 bent inwards through rotation, and the A pressing block 202 is pressed and fixed; the piston fixing sleeve 201 is provided with a piston ring groove 2013, and a piston ring 204 is arranged in the piston ring groove 2013. The utility model discloses in, the turn-ups (A turn-ups 2011, B turn-ups 2012) of inwards buckling that A compact heap 202 and B compact heap 203 formed by riveting soon are fixed, and production process environmental protection, economy, and product quality is high, is favorable to the damping force that more accurate control bumper shock absorber working process produced. A floating piston 8 is arranged in the oil storage cylinder 9 below the piston 2 to divide the oil storage cylinder 9 into a magnetorheological working fluid chamber and a compressed air chamber; the magnetorheological working fluid cavity is filled with magnetorheological working fluid, and the compressed air cavity is filled with compressed air; the upper end of the oil storage cylinder 9 is sealed by a guide oil seal assembly 7.
As a specific embodiment of the present invention: piston ring grooves 2013 are respectively machined on the piston fixing sleeve 201 near the two ends of the piston fixing sleeve. The compression block A202 is fixed on the piston rod 1 through a clamp spring 4. And a wire pressing and sealing assembly is arranged at the outlet of the wire leading-out channel. The lead pressing and sealing assembly comprises a sealing ring 5 and a pressing ferrule 6 arranged on the outer side of the sealing ring 5.
The utility model discloses the theory of operation of bumper shock absorber: when the piston rod meets the depressed road surface, the piston rod 1 moves up and down back and forth. When the piston rod 1 moves from bottom to top, the magnetorheological working fluid above the piston 2 flows to the lower part of the piston 2 through the long through hole on the piston 2 to generate damping force, and when the piston rod 1 moves from top to bottom, the magnetorheological working fluid below the piston 2 flows to the upper part of the piston 2 through the long through hole on the piston 2 to generate damping force. When the piston works, the electromagnetic coil 3 is electrified, and the central processing unit can generate magnetic fields with different strengths by controlling the current of the electromagnetic coil 3, so that the magnetorheological working fluid (the magnetorheological working fluid is mainly prepared by matching a large amount of micron-sized carbonyl iron powder in mineral oil) has different viscosities under different magnetic fields, and different damping forces are generated when the piston moves.
In the working process of the shock absorber, the requirement of a wide range of damping force can be obtained by adjusting the current and the time.
In the present application, the orientation relationship between the "upper" and "lower" drawings should not limit the scope of the present application.
The above general description of the invention and the description of the specific embodiments thereof in this application should not be construed as limiting the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the above general description and/or the embodiments to form other technical solutions within the scope of the present application without departing from the constituent elements of the present invention.
Claims (5)
1. The magneto-rheological automobile shock absorber comprises a piston rod assembly, wherein the piston rod assembly comprises a piston rod (1), a piston (2) arranged on the piston rod (1), and an electromagnetic coil (3) arranged in the piston (2); the piston rod (1) is hollow to form a lead leading-out channel, and a leading-out lead of the electromagnetic coil (3) is led out from the lead leading-out channel; the piston (2) is provided with a long through hole penetrating through two ends; the piston (2) is arranged in the oil storage cylinder (9) and forms sliding fit with the inner wall of the oil storage cylinder (9); the piston rod (1) extends out of the upper end of the oil storage cylinder (9); the method is characterized in that: the piston (2) comprises a piston fixing sleeve (201) sleeved outside the electromagnetic coil (3), and an A pressing block (202) and a B pressing block (203) which are respectively matched with the two ends of the electromagnetic coil (3) in a centering manner; one end of the piston fixing sleeve (201) is riveted to form an A flanging (2011) which is bent inwards, and the A pressing block (202) is pressed and fixed; the other end of the piston fixing sleeve (201) is riveted to form a B flanging (2012) which is bent inwards, and the A pressing block (202) is pressed and fixed; a piston ring groove (2013) is formed in the piston fixing sleeve (201), and a piston ring (204) is arranged in the piston ring groove (2013); a floating piston (8) is arranged below the piston (2) in the oil storage cylinder (9) to divide the oil storage cylinder (9) into a magnetorheological working fluid chamber and a compressed air chamber; the magnetorheological working fluid cavity is filled with magnetorheological working fluid, and the compressed air cavity is filled with compressed air; the upper end of the oil storage cylinder (9) is sealed through a guide oil seal assembly (7).
2. The magnetorheological automobile shock absorber of claim 1, wherein: and piston ring grooves (2013) are respectively machined on the piston fixing sleeve (201) near two ends of the piston fixing sleeve.
3. The magnetorheological automobile shock absorber of claim 1, wherein: the A compression block (202) is fixed on the piston rod (1) through a clamp spring (4).
4. The magnetorheological automobile shock absorber according to claim 1, 2 or 3, wherein: and a wire pressing and sealing assembly is arranged at the outlet of the wire leading-out channel.
5. The magnetorheological automobile shock absorber of claim 4, wherein: the lead pressing and sealing assembly consists of a sealing ring (5) and a pressing ferrule (6) arranged on the outer side of the sealing ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120323950.3U CN214367457U (en) | 2021-02-04 | 2021-02-04 | Magnetorheological automobile shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120323950.3U CN214367457U (en) | 2021-02-04 | 2021-02-04 | Magnetorheological automobile shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367457U true CN214367457U (en) | 2021-10-08 |
Family
ID=77963116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120323950.3U Active CN214367457U (en) | 2021-02-04 | 2021-02-04 | Magnetorheological automobile shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214367457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076282A (en) * | 2022-06-23 | 2022-09-20 | 西格迈股份有限公司 | Multi-stage coil single-cylinder magneto-rheological damper suitable for new energy automobile |
-
2021
- 2021-02-04 CN CN202120323950.3U patent/CN214367457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076282A (en) * | 2022-06-23 | 2022-09-20 | 西格迈股份有限公司 | Multi-stage coil single-cylinder magneto-rheological damper suitable for new energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Magnetorheological automotive shock absorber Granted publication date: 20211008 Pledgee: Agricultural Bank of China Limited by Share Ltd. three county sub branch Pledgor: XGM Corp.,Ltd. Registration number: Y2024330001243 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |