CN107906155B - Gap-adjustable fluid damping device - Google Patents
Gap-adjustable fluid damping device Download PDFInfo
- Publication number
- CN107906155B CN107906155B CN201711091713.3A CN201711091713A CN107906155B CN 107906155 B CN107906155 B CN 107906155B CN 201711091713 A CN201711091713 A CN 201711091713A CN 107906155 B CN107906155 B CN 107906155B
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- Prior art keywords
- gap
- linear displacement
- output unit
- displacement output
- flexible hinge
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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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 invention relates to a gap-adjustable fluid damping device. The invention relates to a gap adjustable fluid damping device which comprises a shell, an orifice plate, a flexible hinge actuating mechanism, a linear displacement output unit, a supporting plate and a pre-tightening adjusting unit. The invention relates to a gap-adjustable fluid damping device, which is a gap-adjustable fluid damping device and adopts a linear displacement output unit to push a flexible hinge actuating mechanism to move, so that the gap d between damping orifices is changed, the flow area of a system is continuously changed, the real-time requirement of the system on damping characteristics is met, the unicity of a damping coefficient of the system is changed, and the damping characteristics of the system are expanded.
Description
Technical Field
The invention belongs to the field of fluid transmission control, and relates to a gap-adjustable fluid damping device.
Background
The damping characteristic of fluid is widely applied to the fluid transmission and control technology, and the damping characteristic of a fluid system is realized by reducing the flow area of the fluid. The traditional damping characteristic is realized by adopting a damping hole with a fixed diameter, the matching performance of the damping hole with a fluid system cannot be determined in the design process, and the damping holes with various specifications need to be developed to achieve the design purpose. In the fields of aerospace and aviation, under certain working conditions, a fluid system is required to realize the function of variable damping characteristics, and the design of a damping hole with a fixed aperture cannot meet the requirement.
Disclosure of Invention
The purpose of the invention is: the device is provided with a damping gap which can be continuously finely adjusted, the flow area of fluid is changed, and the damping characteristic of the system can be continuously adjusted.
The technical solution of the invention is as follows: a gap-adjustable fluid damping device comprises a shell 1, an orifice plate 2, a flexible hinge actuating mechanism 3, a linear displacement output unit 4, a supporting plate 5 and a pre-tightening adjusting unit 6; the shell 1 is provided with an oil inlet hole, an oil outlet hole, a wire guide hole and a mounting groove, the mounting groove is communicated with the oil inlet hole and the oil outlet hole, the orifice plate 2, the flexible hinge actuating mechanism 3, the linear displacement output unit 4, the supporting plate 5 and the pre-tightening adjusting unit 6 are all mounted in the mounting groove, the orifice plate 2 is provided with an oil through hole and is arranged at the bottom of the mounting groove, the flexible hinge actuating mechanism 3 is provided with a pair of symmetrical flexible hinges and moving blocks, one side of the flexible hinge actuating mechanism 3 is provided with an oil through groove which is, a damping gap is formed between the flexible hinge and the linear displacement output unit 4, the linear displacement output unit is contacted with and pre-tightened by the pre-tightening adjusting unit 6, the other end of the flexible hinge actuator extends into a square groove of the flexible hinge actuator 3, and a control lead of the flexible hinge actuator penetrates out of a lead hole of the shell 1 and is connected with an external controller.
The fluid damping device with the adjustable gap further comprises a supporting plate 5, the supporting plate 5 is fixed in the installation groove, the linear displacement output unit 4 is arranged between the pre-tightening adjusting unit 6, and the pre-tightening adjusting unit 6 penetrates through the supporting plate 5 and is used for stabilizing the pre-tightening adjusting unit 6.
The linear displacement output unit 4 is a piezoelectric ceramic or a micro linear motor.
The invention has the beneficial effects that: the invention adopts the linear displacement output unit to push the flexible hinge actuating mechanism, thereby changing the gap between the damping orifices, controlling the flow area of the system, adapting to the real-time requirement of the system on the variable damping characteristic, changing the unicity of the damping characteristic of the system, expanding the damping characteristic of the system and realizing the continuous control of the variable damping characteristic of the system. The application of the flexible hinge realizes the accurate transmission of the tiny displacement. Due to the application of the pre-tightening adjusting unit, the installation error of the linear displacement output unit is reduced.
Drawings
Fig. 1 is a schematic diagram of a gap-adjustable fluid damper, in which 1 is a housing, 2 is an orifice plate, 3 is a flexible hinge actuator, 4 is a linear displacement output unit, 5 is a support plate, and 6 is a pretension adjusting unit;
fig. 2 is a schematic diagram of the gap-adjustable fluid damper with a gap varying function, in which the hinge of the flexible hinge actuator 3 is flexibly deformed when the linear displacement output unit 4 outputs a displacement, and the gap at the orifice plate 2 is changed to d 1.
Detailed Description
The invention is described in further detail below with reference to the drawings.
Please refer to fig. 1, which is a schematic diagram of a gap-adjustable fluid damping device according to the present invention. The orifice plate 2 is directly placed at the bottom of the mounting groove of the shell 1, the oil through hole of the orifice plate is communicated with the oil inlet hole of the shell 1, the orifice plate 2 of the flexible hinge actuating mechanism 3 is adjacent in the mounting groove, one side of the orifice plate with the oil through groove is contacted with the orifice plate 2 to form a damping gap, the initial distance of the orifice plate is d, the oil through groove is communicated with the oil outlet hole, one side of the linear displacement output unit 4 is installed in a square groove of the flexible hinge actuating mechanism 3, the other side of the linear displacement output unit is contacted with the pre-tightening adjusting unit 6, the initial fixing and pre-tightening are completed through the pre-tightening adjusting unit 6, a control lead of the linear displacement output unit penetrates out of a lead hole of the shell 1 to be connected.
The distance of the flow gap at which the fluid passes through the perforated plate 2 can be continuously adjusted.
The flexible hinge actuating mechanism 3 is adopted to improve the displacement transmission precision of the linear displacement output unit 4.
And the pre-tightening adjusting unit 6 is used for reducing the installation error of the linear displacement output unit 4.
Fig. 2 is a schematic view of the working state of the gap-adjustable fluid damping device of the present invention, in which the linear displacement output unit 4 outputs linear displacement, which is transmitted to the flexible hinge actuator 3, the flexible hinge is flexibly deformed to output displacement, so that the gap between the damping gaps is reduced to d1, thereby completing the adjustment of the damping gaps, and the linear displacement output unit 4 can continuously output displacement, thereby realizing the continuous control of the gap between the damping gaps, and finally realizing the control of the variable damping characteristics of the system.
Claims (4)
1. A fluid damping device with adjustable gap, its characterized in that: the device comprises a shell (1), an orifice plate (2), a flexible hinge actuating mechanism (3), a linear displacement output unit (4), a support plate (5) and a pre-tightening adjusting unit (6); the shell (1) is provided with an oil inlet hole, an oil outlet hole, a wire guide hole and a mounting groove, the mounting groove is communicated with the oil inlet hole and the oil outlet hole, the pore plate (2), the flexible hinge executing mechanism (3), the linear displacement output unit (4), the supporting plate (5) and the pre-tightening adjusting unit (6) are all mounted in the mounting groove, the pore plate (2) is provided with an oil through hole and is arranged at the bottom of the mounting groove, the flexible hinge executing mechanism (3) is provided with a pair of symmetrical flexible hinges and a moving block, one side of the flexible hinge executing mechanism (3) is provided with an oil through groove which is attached to the pore plate (2) to form a damping gap with the pore plate, the oil through groove is communicated with the oil outlet hole, the moving block is positioned between the flexible hinges, the other side of the flexible hinge executing mechanism (3) is provided with a square groove, the linear displacement output unit (, the control lead of the controller penetrates out of the lead hole of the shell (1) and is connected with an external controller.
2. The gap adjustable fluid damper apparatus according to claim 1, wherein: the device is characterized by further comprising a supporting plate (5), wherein the supporting plate (5) is fixed in the installation groove, the linear displacement output unit (4) and the pre-tightening adjusting unit (6) are arranged between the pre-tightening adjusting unit (6), and the pre-tightening adjusting unit (6) penetrates through the supporting plate (5) and is used for stabilizing the pre-tightening adjusting unit (6).
3. The gap adjustable fluid damper apparatus according to claim 1, wherein: the linear displacement output unit (4) is piezoelectric ceramic.
4. The gap adjustable fluid damper apparatus according to claim 1, wherein: the linear displacement output unit (4) is a micro linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091713.3A CN107906155B (en) | 2017-11-08 | 2017-11-08 | Gap-adjustable fluid damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091713.3A CN107906155B (en) | 2017-11-08 | 2017-11-08 | Gap-adjustable fluid damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107906155A CN107906155A (en) | 2018-04-13 |
| CN107906155B true CN107906155B (en) | 2020-06-30 |
Family
ID=61843719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711091713.3A Active CN107906155B (en) | 2017-11-08 | 2017-11-08 | Gap-adjustable fluid damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107906155B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60159434A (en) * | 1984-01-31 | 1985-08-20 | Showa Mfg Co Ltd | Damping force adjusting system buffer |
| DE10136300C1 (en) * | 2001-07-25 | 2003-07-03 | Zf Boge Gmbh | impact absorbers |
| CN106195097B (en) * | 2016-08-29 | 2019-02-05 | 长春远洋特种工业材料有限公司 | One kind, which is stayed, moves back again into two-in-one buffering damping device |
| CN206299730U (en) * | 2016-10-20 | 2017-07-04 | 苏州西捷克缓冲科技有限公司 | Oil buffer |
| CN107061595A (en) * | 2017-04-21 | 2017-08-18 | 辽宁工业大学 | A kind of automatically controlled piston mechanism of suspension shock-absorber |
| CN107289058B (en) * | 2017-06-27 | 2019-02-05 | 江苏大学 | A kind of damper damping regulating valve |
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2017
- 2017-11-08 CN CN201711091713.3A patent/CN107906155B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107906155A (en) | 2018-04-13 |
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