CN203230780U - Damper piston with adjustable valve plate rigidity - Google Patents
Damper piston with adjustable valve plate rigidity Download PDFInfo
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- CN203230780U CN203230780U CN 201320261214 CN201320261214U CN203230780U CN 203230780 U CN203230780 U CN 203230780U CN 201320261214 CN201320261214 CN 201320261214 CN 201320261214 U CN201320261214 U CN 201320261214U CN 203230780 U CN203230780 U CN 203230780U
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- valve
- valve block
- piston
- rebound
- valve plate
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Abstract
The utility model discloses a damper piston with adjustable valve plate rigidity. The damper piston consists of a compression valve spring, a piston body, a rebound valve plate group, a guard ring, a piston rod, a compression valve plate, a washer and a nut, wherein the compression valve spring, the piston body, the rebound valve plate group, the guard ring, the compression valve plate and the washer are sleeved on the piston rod and are tightened up by the nut; a magnet exciting coil is arranged in the piston body; and the rebound valve plate group partially or wholly adopts a magneto-rheological elastomer material. A valve system which is composed of a magneto-rheological elastomer is adopted, so that the characteristic of an absorber is adjusted through controlling the whole rigidity of the valve system; the valve plate rigidity can be continuously adjusted; the adjusting scope is wide; the response speed is rapid; the structure is simple; the portability of a piston valve is strong; and the cost is relatively low.
Description
Technical field
The utility model belongs to the damper technique field, is specifically related to a kind of valve block stiffness-adjustable damper piston that adopts magnetic rheology elastic body valve system.
Background technique
The continuous adjustable shock absorber of the damping that is widely used at present mainly contains two kinds of valve control semi-active damper and magneto-rheological vibration dampers.Wherein the valve body accuracy of manufacturing of valve control semi-active damper requires very high, and common magneto-rheological vibration damper is bigger to the demand of magnetic flow liquid, cause the vibration damper quality to increase, cost is higher, and vibration damper is also very high to the requirement of the stability reunion of magnetic flow liquid and sedimentation stability.Magnetic rheology elastic body is the solid simulation of magnetic flow liquid, and carrier fluid is replaced by rubber in magnetic rheology elastic body.The obvious advantage of using magnetorheological solid material is that particle can be not in time and sedimentation, does not also need magnetorheological materials is remained on the seal arrangement of working position.
In recent years, existing people utilizes the material behavior of magnetic rheology elastic body to design vibration damper, and wherein Chinese patent literature CN200520070319 discloses a kind of damper that utilizes the magnetic rheology elastic body development, but its complex structure; And Chinese patent literature CN200620154712 discloses a kind of magnetic rheology elastic body damper of rotor control, but it is applicable to rotor oscillation control problem.
Summary of the invention
The purpose of this utility model is to provide a kind of valve block stiffness-adjustable damper piston, by the integral rigidity of control valve system, thereby adjusts vibration-damper characterist.Its advantage is that valve block rigidity can be transferred continuously, scope wide, response is fast, simple in structure, and the portability of this class piston valve is strong, cost is cheap relatively.
The utility model is achieved through the following technical solutions for solving the problems of the technologies described above:
A kind of valve block stiffness-adjustable damper piston, mainly formed by compression valve spring 1, piston body 2, rebound valve valve block group 3, guard ring 4, piston rod 5, compression valve valve block 6, field coil 7, packing ring 8 and nut 9, described compression valve spring 1, compression valve valve block 6, piston body 2, rebound valve valve block group 3, guard ring 4, packing ring 8 are enclosed within on the piston rod 5, and are tightened by nut 9; Described field coil 7 is installed in the piston body 2.
Described rebound valve valve block group 3 partly or entirely adopts the magnetic rheology elastic body material;
Preferably, described rebound valve valve block group 3 is made up of four valve blocks, and its middle valve plate A3-1 is notched common valve block, one of valve block B3-2, valve block C3-3 or all adopt the magnetic rheology elastic body material, and valve block D3-4 is common valve block.Four valve blocks stack forms rebound valve valve block group 3.
Described piston rod 5 adopts NULL, in order to avoid influence the magnetic circuit distribution of field coil 7, thus improve the magnetic flux of rebound valve valve block group 3 as far as possible.
Described field coil 7 is arranged between rebound valve valve block group 3 and the compression valve valve block 6, can improve the magnetic flux of rebound valve valve block group 3, and its mounting type can embed field coil 7 then for elder generation's machined grooves on piston, at last groove is filled sealing.
Described piston body 2 adopts permeability magnetic material, to improve the magnetic flux of rebound valve valve block group 3.
Working principle of the present utility model is: when electric current passes through field coil 7, field coil 7 forms magnetic field at piston body 2 and rebound valve valve block group 3 regions, control by changing valve block B3-2 that size of current can make magnetic rheology elastic body and the magnetic intensity of valve block C3-3 region, and valve block B3-2, the rigidity of valve block C3-3 depends on the magnetic intensity of its region, when electric current is big, the magnetic intensity that produces is also bigger, thereby the rigidity of magnetic rheology elastic body valve block is also bigger, at this moment the valve pressure reduction of holding of rebound valve also can correspondingly increase, and causes the whole vibration damper hardening; Otherwise electric current hour can cause the vibration damper deliquescing.The electric current that said process can be reduced to by control field coil 7 changes the control that can realize resistance of shock absorber.
The beneficial effects of the utility model are that the valve system that adopts magnetic rheology elastic body to constitute by the integral rigidity of control valve system, thereby adjusts vibration-damper characterist.Its advantage is that valve block rigidity can be regulated continuously, regulation range is wide, speed of response is fast, simple in structure, and this class piston valve portable strong, cost is cheap relatively.
Description of drawings
Fig. 1 is overall structure schematic representation of the present utility model;
Fig. 2 is the schematic representation of the rebound valve valve block group that adopts of the utility model;
Among the figure:
1, compression valve spring 2, piston body 3, rebound valve valve block group 4, guard ring 5, piston rod
6, compression valve valve block 7, field coil 8, packing ring 9, nut
3-1, valve block A 3-2, valve block B 3-3, valve block C 3-4, valve block D
Embodiment
Below in conjunction with accompanying drawing model utility is described in detail.
Fig. 1 is overall structure schematic representation of the present utility model, illustrated a kind of valve block stiffness-adjustable damper piston, mainly formed by compression valve spring 1, piston body 2, rebound valve valve block group 3, guard ring 4, piston rod 5, compression valve valve block 6, field coil 7, packing ring 8 and nut 9, described compression valve spring 1, compression valve valve block 6, piston body 2, rebound valve valve block group 3, guard ring 4, packing ring 8 are enclosed within on the piston rod 5, and are tightened by nut 9; Described field coil 7 is installed in the piston body 2.
Described rebound valve valve block group 3 partly or entirely adopts the magnetic rheology elastic body material;
Preferably, as shown in Figure 2, described rebound valve valve block group 3 is made up of four valve blocks, and its middle valve plate A3-1 is notched common valve block, one of valve block B3-2, valve block C3-3 or all adopt the magnetic rheology elastic body material, and valve block D3-4 is common valve block.Four valve blocks stack forms rebound valve valve block group 3.
Described piston rod 5 adopts NULL, in order to avoid influence the magnetic circuit distribution of field coil 7, thus improve the magnetic flux of rebound valve valve block group 3 as far as possible.
Described field coil 7 is arranged between rebound valve valve block group 3 and the compression valve valve block 6, can improve the magnetic flux of rebound valve valve block group 3, and its mounting type can embed field coil 7 then for elder generation's machined grooves on piston, at last groove is filled sealing.
Described piston body 2 adopts permeability magnetic material, to improve the magnetic flux of rebound valve valve block group 3.
Working principle of the present utility model is: when electric current passes through field coil 7, field coil 7 forms magnetic field at piston body 2 and rebound valve valve block group 3 regions, control by changing valve block B3-2 that size of current can make magnetic rheology elastic body and the magnetic intensity of valve block C3-3 region, and valve block B3-2, the rigidity of valve block C3-3 depends on the magnetic intensity of its region, when electric current is big, the magnetic intensity that produces is also bigger, thereby the rigidity of magnetic rheology elastic body valve block is also bigger, at this moment the valve pressure reduction of holding of rebound valve also can correspondingly increase, and causes the whole vibration damper hardening; Otherwise electric current hour can cause the vibration damper deliquescing.The electric current that said process can be reduced to by control field coil 7 changes the control that can realize resistance of shock absorber.
Above-described embodiment only is used for explanation the utility model; wherein the structure of each parts, Placement etc. all can change to some extent; every equivalents and improvement of carrying out on the basis of technical solutions of the utility model all should do not got rid of outside protection domain of the present utility model.
Claims (5)
1. valve block stiffness-adjustable damper piston, formed by compression valve spring (1), piston body (2), rebound valve valve block group (3), guard ring (4), piston rod (5), compression valve valve block (6), packing ring (8) and nut (9), described compression valve spring (1), piston body (2), rebound valve valve block group (3), guard ring (4), compression valve valve block (6), packing ring (8) are enclosed within on the piston rod (5), and are tightened by nut (9); It is characterized in that:
Also comprise the field coil (7) that is installed in the piston body (2);
Described rebound valve valve block group (3) partly or entirely adopts the magnetic rheology elastic body material.
2. a kind of valve block stiffness-adjustable damper piston according to claim 1 is characterized in that:
Described rebound valve valve block group (3) is made up of four valve blocks, its middle valve plate A(3-1) be notched common valve block, valve block B(3-2), valve block C(3-3) one of or all adopt magnetic rheology elastic body material, valve block D(3-4) be common valve block; Four valve blocks stack forms rebound valve valve block group (3).
3. a kind of valve block stiffness-adjustable damper piston according to claim 1 is characterized in that:
Described piston rod (5) adopts NULL.
4. a kind of valve block stiffness-adjustable damper piston according to claim 1 is characterized in that:
Described field coil (7) is arranged between rebound valve valve block group (3) and the compression valve valve block (6).
5. a kind of valve block stiffness-adjustable damper piston according to claim 1 is characterized in that:
Described piston body (2) adopts permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261214 CN203230780U (en) | 2013-05-14 | 2013-05-14 | Damper piston with adjustable valve plate rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261214 CN203230780U (en) | 2013-05-14 | 2013-05-14 | Damper piston with adjustable valve plate rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230780U true CN203230780U (en) | 2013-10-09 |
Family
ID=49286908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261214 Withdrawn - After Issue CN203230780U (en) | 2013-05-14 | 2013-05-14 | Damper piston with adjustable valve plate rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291827A (en) * | 2013-05-14 | 2013-09-11 | 吉林大学 | Valve-plate-rigidity-adjustable damper piston |
| CN114542647A (en) * | 2020-11-27 | 2022-05-27 | 比亚迪股份有限公司 | Valve train assembly for shock absorber and shock absorber with same |
-
2013
- 2013-05-14 CN CN 201320261214 patent/CN203230780U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291827A (en) * | 2013-05-14 | 2013-09-11 | 吉林大学 | Valve-plate-rigidity-adjustable damper piston |
| CN114542647A (en) * | 2020-11-27 | 2022-05-27 | 比亚迪股份有限公司 | Valve train assembly for shock absorber and shock absorber with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131009 Effective date of abandoning: 20141105 |
|
| RGAV | Abandon patent right to avoid regrant |