CN109236931B - Turbulent damper based on disturbance turbid liquid - Google Patents
Turbulent damper based on disturbance turbid liquid Download PDFInfo
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- CN109236931B CN109236931B CN201811139242.3A CN201811139242A CN109236931B CN 109236931 B CN109236931 B CN 109236931B CN 201811139242 A CN201811139242 A CN 201811139242A CN 109236931 B CN109236931 B CN 109236931B
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- shaped piston
- polymer particles
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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
- F16F9/303—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 the damper being of the telescopic type
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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
- F16F9/3214—Constructional features of pistons
Abstract
The invention discloses a turbulent damper based on disturbance turbid liquid, and belongs to the field of dampers. The device comprises a working cylinder body, an end cover A, an end cover B, polymer suspension, a special-shaped piston and a piston rod; the polymer suspension comprises a viscous fluid with a viscosity coefficient larger than 2.0Pa · s and polymer particles made of high molecular materials suspended in the viscous fluid; the polymer particles are spherical, and the diameter of the polymer particles is 1-5 mm; the special-shaped piston consists of two symmetrical hollow round tables A and B; the hollow round platform A and the hollow round platform B have the same structure and are thin-walled bodies with equal thickness formed by digging a small round platform in a large round platform; the thin wall body is provided with uniformly distributed round holes, and the diameter of each round hole is 3 mm. The invention relates to a turbulent damper based on disturbed turbid liquid, which adopts a special-shaped piston to push viscous fluid to flow and uses polymer particles to impact the special-shaped piston to form turbulent flow.
Description
Technical Field
The invention mainly relates to the field of dampers, in particular to a turbulent type damper based on disturbed turbid liquid.
Background
The application range of the damper is wide, the damper in the prior art is mostly realized by adopting a mode of reducing a working gap and increasing damping force, and although the damping force can be improved by adopting the mode, the fluid flow in the working gap still belongs to the laminar flow phenomenon, so that the increase range of the damping force is limited. Therefore, it is more important to design a damper for improving the damping force based on the turbulent flow mode.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problems in the prior art, the invention provides a turbulent damper based on disturbed turbid liquid, which adopts a special-shaped piston to push viscous fluid to flow and uses polymer particles to impact the special-shaped piston to form turbulent flow.
In order to solve the problems, the solution proposed by the invention is as follows: the utility model provides a turbulent damper based on disturbance turbid liquid, includes the working cylinder body, install respectively in end cover A and end cover B, the polymer turbid liquid at working cylinder body both ends, install in the inside special-shaped piston of working cylinder body, install in piston rod on the special-shaped piston, the piston rod pass install in linear bearing on end cover B, its characterized in that:
the polymer suspension comprises a viscous fluid with a viscosity coefficient larger than 2.0Pa & s and polymer particles made of high polymer materials suspended in the viscous fluid; the polymer particles are spherical, and the diameter of the polymer particles is 1-5 mm;
the special-shaped piston consists of two symmetrical hollow round tables A and B; the hollow round tables A and B have the same structure and are thin-walled bodies with equal thickness formed by digging a small round table in a large round table; the thin wall body is provided with uniformly distributed round holes, and the diameter of each round hole is 3 mm;
the diameter of the special-shaped piston is 1/5-1/3 of the inner diameter of the working cylinder body.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the turbulent damper based on the disturbed turbid liquid is provided with the special-shaped piston with the diameter far smaller than the inner diameter of the working cylinder body, so that the fluid flow form on the whole cross section is complex, and the turbulent flow is facilitated to be formed; in addition, the turbid liquid is composed of viscous fluid and polymer particles made of high molecular materials, the median of the diameters of the polymer particles is the inner diameter of a circular through hole in the special-shaped piston, so that part of the polymer particles smoothly pass through the special-shaped piston, and part of the polymer particles disturb the viscous fluid along the movement direction of the special-shaped piston, so that turbulent damping with larger damping force is formed. Therefore, the turbulent damper is more reasonable in structure, adopts the special-shaped piston to push viscous fluid to flow, forms turbulent flow by impacting polymer particles on the special-shaped piston, and is based on turbulent suspension.
Drawings
FIG. 1 is a schematic diagram of the structural principle of a turbulent damper based on turbulent suspension according to the present invention.
In the figure, 1 — working cylinder; 2-end cap A; 3-end cap B; 31-linear bearings; 4-a piston rod; 51-a hollow round table A; 52-a hollow round table B; 6-metal coil spring; 7-a viscous fluid; 71-polymer particles.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the turbulent damper based on turbulent suspension according to the present invention comprises a cylinder 1, an end cap a2 and an end cap B3 respectively installed at two ends of the cylinder 1, a polymer suspension, a profiled piston installed inside the cylinder 1, and a piston rod 4 installed on the profiled piston, wherein the piston rod 4 passes through a linear bearing 31 installed on an end cap B3.
Referring to fig. 1, the polymer suspension includes a viscous fluid 7 having a viscosity coefficient greater than 2.0Pa · s and polymer particles 71 made of a high molecular material suspended in the viscous fluid 7; the polymer particles 71 are spherical and have a diameter of 1 to 5 mm.
Referring to fig. 1, the special-shaped piston is composed of two symmetrical hollow round tables a51 and B52; the hollow round table A51 has the same structure as the hollow round table B52, and is a thin-wall body with equal thickness formed by digging a small round table in a large round table; the thin wall body is provided with uniformly distributed round holes, and the diameter of each round hole is 3 mm.
Referring to FIG. 1, the diameter of the special-shaped piston is 1/5-1/3 of the inner diameter of the working cylinder 1.
The working principle is as follows: when the piston rod 4 moves leftwards, the hollow round table A51 in the special-shaped piston pushes the viscous fluid in the working cylinder body 1 leftwards to flow, so that polymer particles 71 in the viscous fluid are pushed to move, the polymer particles with the particle diameter smaller than 3mm pass through a round hole in the thin wall of the hollow round table A51, and the polymer particles with the diameter larger than or equal to 3mm are pushed leftwards by the hollow round table A51, so that disturbance to suspension is increased, and turbulent flow with great damping force is formed; when the piston rod 4 moves rightwards, the hollow round table B52 in the special-shaped piston pushes the viscous fluid in the working cylinder body 1 rightwards to flow, so that polymer particles 71 in the viscous fluid are pushed to move, the polymer particles with the particle diameter smaller than 3mm pass through a round hole in the thin wall of the hollow round table B52, and the polymer particles with the diameter larger than or equal to 3mm are pushed to the right by the hollow round table B52, so that disturbance to suspension is increased, and turbulent flow with great damping force is formed; therefore, no matter the profiled piston moves leftwards or rightwards, turbulent damping force is generated.
Claims (1)
1. The utility model provides a turbulent damper based on disturbance turbid liquid, includes working cylinder body (1), install respectively in end cover A (2) and end cover B (3) at working cylinder body (1) both ends, polymer turbid liquid, install in the inside special-shaped piston of working cylinder body (1), install in piston rod (4) on the special-shaped piston, linear bearing (31) of installing on end cover B (3) are passed in piston rod (4), its characterized in that:
the polymer suspension comprises a viscous fluid (7) with a viscosity coefficient larger than 2.0Pa & s and polymer particles (71) made of high molecular materials and suspended in the viscous fluid (7); the polymer particles (71) are spherical and have a diameter of 1-5 mm;
the special-shaped piston consists of two symmetrical hollow round tables A (51) and B (52); the hollow round table A (51) and the hollow round table B (52) have the same structure and are thin-walled bodies with equal thickness formed by digging a small round table in a large round table; the thin wall body is provided with uniformly distributed round holes, and the diameter of each round hole is 3 mm;
the diameter of the special-shaped piston is 1/5-1/3 of the inner diameter of the working cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139242.3A CN109236931B (en) | 2018-09-28 | 2018-09-28 | Turbulent damper based on disturbance turbid liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139242.3A CN109236931B (en) | 2018-09-28 | 2018-09-28 | Turbulent damper based on disturbance turbid liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236931A CN109236931A (en) | 2019-01-18 |
| CN109236931B true CN109236931B (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811139242.3A Active CN109236931B (en) | 2018-09-28 | 2018-09-28 | Turbulent damper based on disturbance turbid liquid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113803402A (en) * | 2021-10-08 | 2021-12-17 | 广州金满鸿电子科技有限公司 | Damping device of automatic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389944A (en) * | 2014-09-17 | 2015-03-04 | 西安交通大学 | Spring and nanometer particle mixed liquid combined shock absorber |
| CN205776856U (en) * | 2016-05-11 | 2016-12-07 | 同济大学 | Mass particle liquid works in coordination with tuned damper |
| CN206233395U (en) * | 2016-10-31 | 2017-06-09 | 同济大学 | A kind of non-linear hybrid energy dissipation damper |
| CN108150580A (en) * | 2017-12-01 | 2018-06-12 | 常州大学 | It is a kind of to damp the constant symmetrical buffer of abnormity |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303467A (en) * | 1996-05-17 | 1997-11-25 | Nissin Electric Co Ltd | Shock absorber for switch operation mechanism |
| DE10223216B4 (en) * | 2002-05-24 | 2005-10-27 | Siemens Ag | Device for shock absorption by means of a piezoelectric actuator |
| JP4500820B2 (en) * | 2007-01-17 | 2010-07-14 | 本田技研工業株式会社 | Variable damping force damper |
-
2018
- 2018-09-28 CN CN201811139242.3A patent/CN109236931B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389944A (en) * | 2014-09-17 | 2015-03-04 | 西安交通大学 | Spring and nanometer particle mixed liquid combined shock absorber |
| CN205776856U (en) * | 2016-05-11 | 2016-12-07 | 同济大学 | Mass particle liquid works in coordination with tuned damper |
| CN206233395U (en) * | 2016-10-31 | 2017-06-09 | 同济大学 | A kind of non-linear hybrid energy dissipation damper |
| CN108150580A (en) * | 2017-12-01 | 2018-06-12 | 常州大学 | It is a kind of to damp the constant symmetrical buffer of abnormity |
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| CN109236931A (en) | 2019-01-18 |
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