CN207687252U - Gas compensation formula MR vibration damper - Google Patents
Gas compensation formula MR vibration damper Download PDFInfo
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- CN207687252U CN207687252U CN201721841552.0U CN201721841552U CN207687252U CN 207687252 U CN207687252 U CN 207687252U CN 201721841552 U CN201721841552 U CN 201721841552U CN 207687252 U CN207687252 U CN 207687252U
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- piston
- cylinder body
- end cover
- magnetic circuit
- gas
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Abstract
A kind of gas compensation formula MR vibration damper described in the utility model, piston and floating spacer ring sequence unit are in cylinder body, cylinder body is divided into the first magnetic circuit chamber, the second magnetic circuit chamber and gas compensated cavity, gap between piston and cylinder body forms damp channel, is sealed cylinder body by upper end cover, bottom end cover；Magnetorheological fluid can be become solid-state from liquid in the case of energization, and generate damping force by the wound around coil on piston；Piston rod is fixedly linked with piston, and piston carries out positioning device in cylinder body by the shaft shoulder, and the seat of honour is connected through a screw thread with piston rod；Pedestal is connected by screw with cylinder body, forms the assembly of damper.A kind of gas compensation device is newly increased in cylinder barrel, by floating piston Absorbing hydraulic pulsation and energy is stored in compensating gas chamber, the damped coefficient of damping device can dynamically be changed, damping effect well can be played, the quality of processing part is set to be greatly improved, accurate real-time control etc. is carried out to controlled device, the damping device for being suitble to multiple hole, the polishing of face abrasive Flow to equip.
Description
Technical field
The utility model provides a kind of gas compensation formula MR vibration damper, is to existing MR vibration damper structure
It improves, belongs to lathe vibration insulating system technical field.
Background technology
It in numerically-controlled machine tool, is usually fixed due to the damped coefficient of elastic damping system, lathe is in and is stablized
The vibration damping effect in vibration stage is than more significant.But when accumulation signal is unstable and with Dynamic Loading, elastic damping system
System just can not export corresponding damping force according to real-time vibration signal.Therefore in this case elastic damping vibration insulating system without
Method reaches dynamic vibration damping.
The product specific aim that numerically-controlled machine tool is high for production precision, stability is strong is extremely strong.It overcomes handmade process
In
It is difficult to the human error overcome.For itself, stable processing conditions be its realize processing request must
Right premise.How to obtain stable operating condition and plays considerable work for improving the machining accuracy of numerically-controlled machine tool
With.Largely it is demonstrated experimentally that the vibration characteristics during lathe work determines the degree of stability of lathe work.More popular says number
The mechanical processing vibration that control lathe is supervened in process is only the main reason for influencing machine finish.Strong
Vibration not only affects normal cutting of the cutter to workpiece so that workpiece surface quality becomes coarse, moreover, cutter was being cut
There is also the danger of tipping in journey.At the same time, improper mechanical processing vibration is also a kind of damage to numerically-controlled machine tool itself,
Cause the reduced service life of numerically-controlled machine tool.The generation of noise will also result in injury for machine operation personnel in vibration processes.
The damage that machine body structure can be reduced by the amplitude during reduction machine tooling, to improve machine tooling process
Stability.Therefore, by designing a set of subtracting for requirement on machining accuracy to the analysis of numerically-controlled machine tool dynamic characteristic itself
Vibrating system is come to solve the puzzlement that brings of mechanical processing vibration be a set of more feasible solution.
According to current new material studies have shown that magnetorheological fluid shows numerous superior performances:Fast response time,
Change procedure continuous reversible, yield stress is big, small, less energy consumption, at low cost, the wide equal good characteristics of operating temperature range.Mesh
It is preceding using magnetorheological fluid as the magnetorheological device of working media oneself to be widely used in medical treatment, space flight, aircraft, building etc. a series of important
Field.The advantage especially played in terms of vibration damping is that other intellectual materials are irreplaceable.
Invention content
The utility model discloses a kind of gas compensation formula MR vibration damper, and a kind of gas compensation dress is newly increased in cylinder barrel
It sets, by floating piston Absorbing hydraulic pulsation and stores energy in compensating gas chamber, can dynamically change the damping of damping device
Coefficient can play damping effect well, and the quality of processing part is made to be greatly improved, and carry out controlled device accurate
Real-time control etc., the damping device for being suitble to multiple hole, the polishing of face abrasive Flow to equip.
A kind of gas compensation formula MR vibration damper described in the utility model, it is characterised in that：Including the seat of honour, piston
Bar, upper end cover, cylinder body, piston, internal coil, floating spacer ring, bottom end cover, pedestal, gas compensation chamber, the first magnetic circuit chamber, damping
Channel, the second magnetic circuit chamber；
Wherein, piston and floating spacer ring sequence unit be in cylinder body, by cylinder body be divided into the first magnetic circuit chamber, the second magnetic circuit chamber and
Gas compensation chamber, the gap between piston and cylinder body form damp channel, are sealed cylinder body by upper end cover, bottom end cover；In work
Magnetorheological fluid can be become solid-state from liquid in the case of energization, and generate damping force by wound around coil beyond the Great Wall；Piston rod and piston
It is fixedly linked, piston carries out positioning device in cylinder body by the shaft shoulder, and the seat of honour is connected through a screw thread with piston rod；Pedestal and cylinder body
It is connected by screw, forms the assembly of damper.
The course of work of the utility model is as follows：Cylinder body is connected by connector with lathe and ground, and piston rod, which drives, lives
Plug moves up and down, when MR vibration damper works, when can be subject to constant electric current to MR vibration damper internal coil, and piston
Gap between cylinder body can form damp channel.At this moment it just will produce electromagnetic induction in damp channel, form magnetic field, magnetic field
Being formed can cause the characteristic of magnetorheological fluid that corresponding change occurs, to play damping effect well.Gas compensation device
Effect is Absorbing hydraulic pulsation while storing energy so that the movement of damper is carried out continuously.To improve the work of system
Make stability.The N of certain pressure intensity is injected in compensation device2, extruding working solution makes the device in piston cylinder motion process
Volume changes.The variation of compensation device volume causes N again2The variation of pressure, and then complete the effect of its decompression.In addition,
It also needs to put down except atmospheric pressure in view of damper gas compensation device during being disposed vertically will compensate in this secondary design
The lathe that weighs is conducted oneself with dignity.The design uses gas piston compensation device, can be tied well with the cylinder structure of damper
It closes, and the dead weight of gas piston compensation device is lighter, it is easy to disassemble.It is this control be it is seamless, timely, moment, even
It is continuous continuous, for having prodigious advantage on numerically-controlled machine tool.
The utility model has the positive effect that：Using closed loop feedback structure, its vibration damping object can be carried out precisely real-time
Manipulation；Its damping force continuous reversible generated；It is achievable stepless regulated, and output valve is larger；Response time is short, the usual time
It is completed in Millisecond；Simple structure is compact, convenient for being dismounted to it；It is seldom to the consumption of electric energy, and stability is good；Environmental protection
Noiseless, service life is long.Gas compensation chamber stores energy simultaneously in Absorbing hydraulic pulsation so that the movement of damper is connected
It is continuous to carry out.To improve the job stability of system.The N of certain pressure intensity is injected in gas compensation device2, it is moved through in piston cylinder
Working solution is squeezed in journey makes the volume of the device change.The variation of compensation device volume causes N again2The variation of pressure,
And then complete the effect of its decompression.The design use gas piston compensation device, can well with the cylinder barrel of damper
Structure is combined, and the dead weight of gas piston compensation device is lighter, easy to disassemble.
Description of the drawings
Fig. 1 is the utility model structure principle chart；
In figure, 1, the seat of honour；2, piston rod；3, upper end cover；4, cylinder body；5, piston；6, internal coil；7, floating spacer ring；8、
Bottom end cover；9, pedestal；10, gas compensation chamber；11, the first magnetic circuit chamber；12, damp channel；13, the second magnetic circuit chamber.
Specific implementation mode
The utility model is further illustrated by the following drawings：
As shown in Figure 1, the utility model is mainly by the seat of honour 1, piston rod 2, upper end cover 3, cylinder body 4, piston 5, internal coil
6,13 groups of the 12, second magnetic circuit chamber is led in floating spacer ring 7, bottom end cover 8, pedestal 9, gas compensation chamber 10, the first magnetic circuit chamber 11, damping
At；The piston rod 2 is fixedly linked with piston 5, and piston 5 is positioned by the shaft shoulder, then by piston 5 and floating spacer ring 7
Sequence is packed into cylinder body 4, is sealed cylinder body 4 by upper end cover 3, bottom end cover 8；Separated by piston 5 and floating spacer ring 7 in cylinder body 4
For the first magnetic circuit chamber 11, the second magnetic circuit chamber 13 and gas compensated cavity 10, the gap between piston 5 and cylinder body 4 forms damp channel
12；The seat of honour 1 is connected through a screw thread with piston rod 2, and pedestal 9 is connected by screw with cylinder body 4；Cylinder body 4 passes through connector and lathe
It is connected with ground, piston rod 2 moves up and down with piston 5, the free floating in cylinder body 4 of floating spacer ring 7；Work as MR vibration damper
When work, when can be subject to constant electric current to MR vibration damper coil 6, the gap between piston 5, internal coil and cylinder body 4
Damp channel 12 can be formed, just will produce electromagnetic induction in damp channel 12, forms magnetic field, the formation in magnetic field can cause magnetorheological
Corresponding change occurs for the characteristic of liquid, to play damping effect well.The effect of gas compensation device is absorption pressure punching
It hits while storing energy so that the movement of damper is carried out continuously.To improve the job stability of system.Compensation device
The N of middle injection certain pressure intensity2, extruding working solution makes the volume of the device change in piston cylinder motion process.Compensation
The variation of device volume causes N again2The variation of pressure, and then complete the effect of its decompression.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative, and the scope of protection of the utility model is defined by the appended claims, those skilled in the art
Member can make these embodiments numerous variations or repair under the premise of without departing substantially from the principles of the present invention and essence
Change, these change and modification each fall within the scope of protection of the utility model.
Claims (1)
1. a kind of gas compensation formula MR vibration damper, it is characterised in that：Including the seat of honour, piston rod, upper end cover, cylinder body, piston,
Internal coil, floating spacer ring, bottom end cover, pedestal, gas compensation chamber, the first magnetic circuit chamber, damp channel, the second magnetic circuit chamber；
Wherein, cylinder body is divided into the first magnetic circuit chamber, the second magnetic circuit chamber and gas by piston and floating spacer ring sequence unit in cylinder body
Compensated cavity, the gap between piston and cylinder body form damp channel, are sealed cylinder body by upper end cover, bottom end cover；On piston
Magnetorheological fluid can be become solid-state from liquid in the case of energization, and generate damping force by wound around coil；Piston rod is fixed with piston
It is connected, piston carries out positioning device in cylinder body by the shaft shoulder, and the seat of honour is connected through a screw thread with piston rod；Pedestal passes through with cylinder body
Screw connects, and forms the assembly of damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841552.0U CN207687252U (en) | 2017-12-26 | 2017-12-26 | Gas compensation formula MR vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841552.0U CN207687252U (en) | 2017-12-26 | 2017-12-26 | Gas compensation formula MR vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687252U true CN207687252U (en) | 2018-08-03 |
Family
ID=62995802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721841552.0U Expired - Fee Related CN207687252U (en) | 2017-12-26 | 2017-12-26 | Gas compensation formula MR vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458428A (en) * | 2018-12-28 | 2019-03-12 | 湖南联诚轨道装备有限公司 | A kind of damping piston debugging tool |
| CN113027987A (en) * | 2021-03-04 | 2021-06-25 | 珠海格力智能装备有限公司 | Vibration damping device and machine tool |
-
2017
- 2017-12-26 CN CN201721841552.0U patent/CN207687252U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458428A (en) * | 2018-12-28 | 2019-03-12 | 湖南联诚轨道装备有限公司 | A kind of damping piston debugging tool |
| CN109458428B (en) * | 2018-12-28 | 2024-03-12 | 湖南联诚轨道装备有限公司 | Damping piston debugging tool |
| CN113027987A (en) * | 2021-03-04 | 2021-06-25 | 珠海格力智能装备有限公司 | Vibration damping device and machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20191226 |