CN108150580A - It is a kind of to damp the constant symmetrical buffer of abnormity - Google Patents
It is a kind of to damp the constant symmetrical buffer of abnormity Download PDFInfo
- Publication number
- CN108150580A CN108150580A CN201711247496.2A CN201711247496A CN108150580A CN 108150580 A CN108150580 A CN 108150580A CN 201711247496 A CN201711247496 A CN 201711247496A CN 108150580 A CN108150580 A CN 108150580A
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- China
- Prior art keywords
- variable cross
- cylinder
- section piston
- symmetrical
- working cylinder
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Classifications
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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
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
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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
- F16F9/3235—Constructional features of cylinders
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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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The constant symmetrical buffer of abnormity is damped the invention discloses a kind of, belongs to damping buffering vibration damping instrument field.It includes the identical variable cross-section piston modules symmetrically installed of symmetrical working cylinder, the cylinder cap A and cylinder cap B that are installed in symmetrical working cylinder both ends, two groups of structures and full of the viscous fluid 4 inside symmetrical working cylinder；Round bar in two groups of variable cross-section piston modules is each passed through cylinder cap A and cylinder cap B and can be with free movement；The outer wall of variable cross-section piston and the inner wall of symmetrical working cylinder constitute the slanted gap flowed freely for viscous fluid, and the cross-sectional area of slanted gap is equal everywhere；The flow direction of slanted gap and the direction of motion oblique of variable cross-section piston in viscous fluid, and oblique angles are 30 ° 45 °.The advantages of buffer of the present invention has asymmetric dampening force, and damping force is relative constant.
Description
Technical field
The present invention relates to damping buffering vibration damping instrument fields, refer in particular to a kind of constant symmetrical buffer of abnormity of damping.
Background technology
Viscous damper is a kind of intelligent vibration damping instrument, and existing viscous damper is that piston is installed in working cylinder, and
Full of viscous liquid in cylinder body, the damped coefficient that viscous liquid is adjusted without external power supply realizes that damping changes, this kind of viscous liquid
Piston outer wall and work inside wall of cylinder clearance constant or variation in damper.Existing viscous fluid damper no matter the working clearance whether
Variation can lead to the significant changes of damping.Therefore, a kind of fairly constant liquid buffer of damping force is designed with important
Meaning.
Invention content
The technical issues of present invention need to solve be：For technical problem of the existing technology, the present invention provides a kind of double
Rod realizes asymmetric dampening force, and the symmetrical buffer of abnormity that damping force is fairly constant using fluid velocity component.
To solve the above-mentioned problems, solution proposed by the present invention is：It is a kind of to damp the constant symmetrical buffer of abnormity,
It is identical symmetrical including symmetrical working cylinder, the cylinder cap A and cylinder cap B that are installed in the symmetrical working cylinder both ends, two groups of structures
Variable cross-section piston modules of installing and full of the viscous fluid 4 inside the symmetrical working cylinder.
The symmetrical working cylinder is the cylinder block that cross section is annulus, and internal diameter centre is minimum, both ends are maximum, remaining
Part changes according to linear rule；The variable cross-section piston modules include variable cross-section piston and are installed on the variable cross-section piston
Round bar；The round bar in two groups of variable cross-section piston modules is each passed through the cylinder cap A and the cylinder cap B and can be certainly
By moving.
The variable cross-section piston is round table-like round bar, close to the end face diameter of the cylinder cap A or cylinder cap B it is larger, close to institute
The end face diameter stated in the middle part of symmetrical working cylinder is smaller, and the diameter variation of cross section；The outer wall of the variable cross-section piston with
The inner wall of the symmetrical working cylinder constitutes the slanted gap flowed freely for the viscous fluid, the horizontal stroke of the slanted gap
Area of section is equal everywhere；The flow direction of slanted gap described in the viscous fluid and the movement side of the variable cross-section piston
To oblique, and oblique angles are 30 ° -45 °.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
The constant symmetrical buffer of abnormity of a kind of damping of the invention, using the slanted gap with piston motion direction oblique
As the working clearance of viscous fluid flowing, so that damping force is mainly produced by the change of the flowing velocity component direction of fluid
It is raw, eliminate the fluctuation of damping force.It follows that the advantages of the present invention has asymmetric dampening force, and damping force is fairly constant.
Description of the drawings
Fig. 1 is a kind of principle schematic diagram of the symmetrical buffer of the constant abnormity of damping of the present invention.
In figure, 11-symmetrical working cylinder, 12-cylinder cap A；13-cylinder cap B；21-round bar；22-variable cross-section piston；3-incline
Oblique gap；4-viscous fluid.
Specific embodiment
The present invention is described in further detail below with reference to the drawings and specific embodiments.
It is shown in Figure 1, the constant symmetrical buffer of abnormity of a kind of damping of the invention, including symmetrical working cylinder 11, dress
The identical variable cross-section piston mould symmetrically installed of cylinder cap A12 and cylinder cap B13, two groups of structures set on symmetrical 11 both ends of working cylinder
Block and full of the viscous fluid 4 inside symmetrical working cylinder 11.
Shown in Figure 1, symmetrical working cylinder 1 is the cylinder block that cross section is annulus, and internal diameter centre is minimum, both ends
Maximum, rest part changes according to linear rule；Variable cross-section piston modules include variable cross-section piston 22 and are installed in variable cross-section work
Round bar 21 on plug 22；Round bar 21 in two groups of variable cross-section piston modules is each passed through cylinder cap A12 and cylinder cap B13 and can be free
Movement；Variable cross-section piston is round table-like round bar, close to the end face diameter of cylinder cap A12 or cylinder cap B13 it is larger, close to symmetrical working cylinder
The end face diameter at 11 middle parts is smaller, and the diameter variation of cross section；The outer wall of variable cross-section piston 22 and symmetrical working cylinder 11
Inner wall constitute the slanted gap 3 flowed freely for viscous fluid 4, the cross-sectional area of slanted gap 3 is equal everywhere；It is viscous
The flow direction of slanted gap 3 and the direction of motion oblique of variable cross-section piston 22 in viscous flow body 4, and oblique angles are 30 ° -45 °.
Operation principle：Due to the cross-sectional area constant of slanted gap 3, so that the damping fluctuation of viscous fluid 4
Amplitude reduces；When two groups of variable cross-section pistons 22 are moved relative to symmetrical working cylinder 11, the viscous fluid 4 of cylinder interior will along with
The streamlined flow of 22 direction of motion oblique of variable cross-section piston so that the major part of damping force by viscous fluid 4 circumferentially
Momentum component composition, although the coefficient of viscosity of viscous fluid 4 can occur a little to fluctuate, with respect to the circumferential direction momentum component and
Speech, the change cancellation of damping force.Therefore, the damping force substantially constant that the movement of variable cross-section piston 22 is provided asks both ends damping
Power is full symmetric.
Claims (1)
1. a kind of damp the constant symmetrical buffer of abnormity, including symmetrical working cylinder (11), it is installed in the symmetrical working cylinder
(11) the identical variable cross-section piston modules symmetrically installed of the cylinder cap A (12) and cylinder cap B (13) at both ends, two groups of structures and
Full of the internal viscous fluid (4) of the symmetrical working cylinder (11), it is characterised in that：
The symmetrical working cylinder (1) is the cylinder block that cross section is annulus, and internal diameter centre is minimum, both ends are maximum, remaining
Part changes according to linear rule；The variable cross-section piston modules include variable cross-section piston (22) and are installed in the variable cross-section work
Fill in the round bar (21) on (22)；The round bar (21) in two groups of variable cross-section piston modules is each passed through the cylinder cap A
(12) and the cylinder cap B (13) and can be with free movement；The variable cross-section piston is round table-like round bar, close to the cylinder cap A
(12) end face diameter or in the middle part of larger, the close symmetrical working cylinder (11) of the end face diameter of cylinder cap B (13) is smaller and transversal
The diameter variation in face；The inner wall of the outer wall of the variable cross-section piston (22) and the symmetrical working cylinder (11) constitute for
The slanted gap (3) that the viscous fluid (4) flows freely, the cross-sectional area of the slanted gap (3) are equal everywhere；It is described
The flow direction of slanted gap (3) described in viscous fluid (4) and the direction of motion oblique of the variable cross-section piston (22), and tiltedly
Angle of cut degree is 30 ° -45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247496.2A CN108150580B (en) | 2017-12-01 | 2017-12-01 | Invariable-damping special-shaped symmetrical buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247496.2A CN108150580B (en) | 2017-12-01 | 2017-12-01 | Invariable-damping special-shaped symmetrical buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150580A true CN108150580A (en) | 2018-06-12 |
| CN108150580B CN108150580B (en) | 2020-07-07 |
Family
ID=62465938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711247496.2A Active CN108150580B (en) | 2017-12-01 | 2017-12-01 | Invariable-damping special-shaped symmetrical buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150580B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236931A (en) * | 2018-09-28 | 2019-01-18 | 常州大学 | One kind is based on disturbance suspension turbulence type damper |
| CN109750594A (en) * | 2019-02-01 | 2019-05-14 | 东南大学 | The compound multi-direction wind resistance antidetonation damper of Loads of Long-span Bridges and its working method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109520A (en) * | 1960-10-10 | 1963-11-05 | Goetzewerke | Hydraulic shock absorber comprising an elastic piston |
| GB1365623A (en) * | 1971-03-18 | 1974-09-04 | Dresser Ind | Compressible liquid or solid springs |
| CN1115834A (en) * | 1995-06-13 | 1996-01-31 | 华中理工大学 | Method of combining extrusion oil film and shearing oil film of current convertors |
| CN2648174Y (en) * | 2003-09-25 | 2004-10-13 | 欧进萍 | Built-in air bag type double-rod fluid damper |
| CN105041956A (en) * | 2015-07-20 | 2015-11-11 | 常州大学 | Double-pole variable-cylinder passive single-control variable-damping magneto-rheological damper |
| CN105156546A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multistage-piston passive single-control variable-damping magnetorheological damper |
| CN105179568A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston active single-control variable-damping magneto-rheological damper |
| CN105179575A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston self-adaptation magnetorheological damper |
-
2017
- 2017-12-01 CN CN201711247496.2A patent/CN108150580B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109520A (en) * | 1960-10-10 | 1963-11-05 | Goetzewerke | Hydraulic shock absorber comprising an elastic piston |
| GB1365623A (en) * | 1971-03-18 | 1974-09-04 | Dresser Ind | Compressible liquid or solid springs |
| CN1115834A (en) * | 1995-06-13 | 1996-01-31 | 华中理工大学 | Method of combining extrusion oil film and shearing oil film of current convertors |
| CN2648174Y (en) * | 2003-09-25 | 2004-10-13 | 欧进萍 | Built-in air bag type double-rod fluid damper |
| CN105179568A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston active single-control variable-damping magneto-rheological damper |
| CN105179575A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston self-adaptation magnetorheological damper |
| CN105041956A (en) * | 2015-07-20 | 2015-11-11 | 常州大学 | Double-pole variable-cylinder passive single-control variable-damping magneto-rheological damper |
| CN105156546A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multistage-piston passive single-control variable-damping magnetorheological damper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236931A (en) * | 2018-09-28 | 2019-01-18 | 常州大学 | One kind is based on disturbance suspension turbulence type damper |
| CN109236931B (en) * | 2018-09-28 | 2020-04-28 | 常州大学 | Turbulent damper based on disturbance turbid liquid |
| CN109750594A (en) * | 2019-02-01 | 2019-05-14 | 东南大学 | The compound multi-direction wind resistance antidetonation damper of Loads of Long-span Bridges and its working method |
| CN109750594B (en) * | 2019-02-01 | 2023-11-10 | 东南大学 | Large-span bridge composite multi-directional wind-resistant and earthquake-resistant damper and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108150580B (en) | 2020-07-07 |
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