CN201908985U - Hydraulic buffer of on-off semi-active suspension system - Google Patents
Hydraulic buffer of on-off semi-active suspension system Download PDFInfo
- Publication number
- CN201908985U CN201908985U CN2010206597282U CN201020659728U CN201908985U CN 201908985 U CN201908985 U CN 201908985U CN 2010206597282 U CN2010206597282 U CN 2010206597282U CN 201020659728 U CN201020659728 U CN 201020659728U CN 201908985 U CN201908985 U CN 201908985U
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- China
- Prior art keywords
- cylinder
- suspension system
- active suspension
- inner casing
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000725 suspension Substances 0.000 title claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a hydraulic buffer of an on-off semi-active suspension system. The hydraulic buffer of an on-off semi-active suspension system comprises a cylinder body, a piston rod, a lead and a base, wherein the piston rod is arranged inside the cylinder body; the lead is at one end of the cylinder body and the base at the other end of the cylinder. The buffer cylinder body comprises an outer cylinder, a middle cylinder and a inner cylinder; the piston rod and the rod are arranged inside the inner cylinder; an oil hole is arranged on the inner cylinder; a cavity with no rod is connected with the cavity body formed between the inner cylinder and the middle cylinder; two passageways are arranged on the lead; a cavity with a rod is communicated with one passageway and is connected with the outer oil way; the cavity with no rod passes the cavity body formed between the inner cylinder and the middle cylinder; and the other passageway is connected with the outer oil way. The middle cylinder is added to cause the oil way to be guided along the lead direction; the oil way is more compact; the travel distance of the oil liquid is shorter; the pressure loss of fluids during long travel distance is shorter; and the installation of the high speed on-off valve is facilitated.
Description
Technical field
The utility model relates to the damping element in a kind of switch type semi-active suspension system, particularly a kind of vibration damper of oil circuit being drawn and joining with high-speed switch valve.
Background technique
Needs according to the control of switch type semi-active damper, need draw oil circuit high-speed switch valve is installed, the body of switch type semi-active damper and the difference of the maximum of vibration damper commonly used are oil circuit to be guided into the high-speed switch valve that plays an important role in the control of switch type semi-active suspension system, existing solution is rodless cavity and rod chamber to be respectively arranged with draw oil circuit, but because the structure of oil circuit is disperseed, the stroke of fluid is bigger, the pressure loss of liquid when long stroke is bigger, and the performance of system is had bigger influence.
The model utility content
The purpose of this utility model is the shortcoming at prior art, and a kind of oil circuit compactness is provided, the switch type semi-active suspension system dydraulic shock absorber that the fluid stroke reduces.
The technical solution of the utility model is: a kind of switch type semi-active suspension system dydraulic shock absorber, comprise cylinder body, be arranged at the piston rod of cylinder interior, be positioned at the helical pitch of cylinder body one end, and the base that is positioned at the cylinder body the other end, described vibration damper cylinder body comprises outer shell, middle cylinder, inner casing, the inside of inner casing is provided with piston rod and piston, inner casing is provided with oilhole, and rodless cavity joins by the cavity that forms between the oilhole on the inner casing and inner casing and the middle cylinder; Helical pitch is provided with two passes, and rod chamber communicates with a passage, thereby joins with outside oil circuit, and rodless cavity joins by cavity, another passage and the outside oil circuit that forms between inner casing and the middle cylinder.
Preferably: described helical pitch is installed on a side of cylinder body by the helical pitch seat, and locks by locking nut.
Preferably: be provided with the pack assembly that deoils between described outer shell and the middle cylinder.
Preferably: described piston is provided with piston one-way valve piece and piston check valve spring.
Preferably: described base is provided with base valve and bottom check valve spring, is installed on the base by the base nut.
The beneficial effects of the utility model are: according to the needs of switch type semi-active damper, need draw oil circuit high-speed switch valve is installed, the design proposal of switch type semi-active damper is: rod chamber is drawn an oil circuit, rodless cavity is drawn an oil circuit, shoe cream room is drawn an oil circuit, for the fluid that makes rodless cavity can be drawn from helical pitch, added a middle cylinder, oil circuit is all drawn in the helical pitch direction, oil circuit can be compact more, the stroke of fluid reduces, and has reduced the pressure loss that fluid at long stroke is, and provides convenience for the installation of high-speed switch valve.
Description of drawings
Fig. 1 is a sectional view of the present utility model
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
A kind of switch type semi-active suspension system dydraulic shock absorber, comprise cylinder body, be arranged at the piston rod 1 of cylinder interior, be positioned at the helical pitch 3 of cylinder body one end, and the base 15 that is positioned at the cylinder body the other end, it is characterized in that: described vibration damper cylinder body comprises outer shell 7, middle cylinder 6, inner casing 5, the inside of inner casing 5 is provided with piston rod 8 and piston 11, inner casing 5 is provided with oilhole, and rodless cavity joins by the cavity that forms between the oilhole on the inner casing 5 and inner casing 5 and the middle cylinder 6; Helical pitch 3 is provided with two passes, and rod chamber communicates with a passage, thereby joins with outside oil circuit, and rodless cavity joins by cavity, another passage and the outside oil circuit that forms between inner casing 5 and the middle cylinder 6.Described helical pitch 3 is installed on a side of cylinder body by the helical pitch seat, and passes through locking nut 2 lockings.Be provided with the pack assembly 8 that deoils between described outer shell 7 and the middle cylinder 6.Described piston 11 is provided with piston one-way valve piece 10 and piston check valve spring.Described base 15 is provided with base valve 14 and bottom check valve spring 13, is installed on the base 15 by base nut 12.
Claims (5)
1. switch type semi-active suspension system dydraulic shock absorber, comprise cylinder body, be arranged at the piston rod (1) of cylinder interior, be positioned at the helical pitch (3) of cylinder body one end, and the base (15) that is positioned at the cylinder body the other end, it is characterized in that: described vibration damper cylinder body comprises outer shell (7), middle cylinder (6), inner casing (5), the inside of inner casing (5) is provided with piston rod (8) and piston (11), inner casing (5) is provided with oilhole, and rodless cavity joins by the cavity that forms between the oilhole on the inner casing (5) and inner casing (5) and the middle cylinder (6); Helical pitch (3) is provided with two passes, and rod chamber communicates with a passage, thereby joins with outside oil circuit, and rodless cavity joins by cavity, another passage and the outside oil circuit that forms between inner casing (5) and the middle cylinder (6).
2. switch type semi-active suspension system dydraulic shock absorber as claimed in claim 1 is characterized in that: described helical pitch (3) is installed on a side of cylinder body by the helical pitch seat, and passes through locking nut (2) locking.
3. switch type semi-active suspension system dydraulic shock absorber as claimed in claim 1 is characterized in that: be provided with the pack assembly that deoils (8) between described outer shell (7) and the middle cylinder (6).
4. switch type semi-active suspension system dydraulic shock absorber as claimed in claim 1 is characterized in that: described piston (11) is provided with piston one-way valve piece (10) and piston check valve spring.
5. switch type semi-active suspension system dydraulic shock absorber as claimed in claim 1 is characterized in that: described base (15) is provided with base valve (14) and bottom check valve spring (13), is installed on the base (15) by base nut (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206597282U CN201908985U (en) | 2010-12-15 | 2010-12-15 | Hydraulic buffer of on-off semi-active suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206597282U CN201908985U (en) | 2010-12-15 | 2010-12-15 | Hydraulic buffer of on-off semi-active suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908985U true CN201908985U (en) | 2011-07-27 |
Family
ID=44301188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206597282U Expired - Lifetime CN201908985U (en) | 2010-12-15 | 2010-12-15 | Hydraulic buffer of on-off semi-active suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307192A (en) * | 2019-07-31 | 2019-10-08 | 娄底市中兴液压件有限公司 | Pressurized cylinder |
-
2010
- 2010-12-15 CN CN2010206597282U patent/CN201908985U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307192A (en) * | 2019-07-31 | 2019-10-08 | 娄底市中兴液压件有限公司 | Pressurized cylinder |
| CN110307192B (en) * | 2019-07-31 | 2024-06-07 | 娄底市中兴液压件有限公司 | Pressurized oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee after: CRRC QINGDAO SIFANG VEHICLE RESEARCH INSTITUTE CO., LTD. Address before: 266000 No. 231, Ruichang Road, Sifang District, Shandong, Qingdao Patentee before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |