CN204253727U - The torsional vibration damper that a kind of damping is adjustable - Google Patents
The torsional vibration damper that a kind of damping is adjustable Download PDFInfo
- Publication number
- CN204253727U CN204253727U CN201420555240.3U CN201420555240U CN204253727U CN 204253727 U CN204253727 U CN 204253727U CN 201420555240 U CN201420555240 U CN 201420555240U CN 204253727 U CN204253727 U CN 204253727U
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- CN
- China
- Prior art keywords
- seal casinghousing
- supporting drum
- damping
- adjustable
- vibration damper
- 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 - Fee Related
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- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses the torsional vibration damper that a kind of damping is adjustable, comprise seal casinghousing, coaxially arrange supporting drum in seal casinghousing, the inwall of seal casinghousing is equidistantly provided with four outstanding housing ribs for one week, the length direction of housing ribs and the axial consistent of seal casinghousing; Each housing ribs there are several pod apertures; Magnetic flow liquid is perfused with in cavity between seal casinghousing and supporting drum; Seal casinghousing outer wall is provided with two radially symmetrical magnetic conductive parts; Two magnetic conductive part outsides are wound with coil jointly; In the both sides correspondence of the axis of seal casinghousing, two ring shaped conductive supports are installed; At ring shaped conductive support and the brush being connected with at least one between closed shell and being connected with coil.The size in the magnetic field that the utility model is produced by regulating winding changes the damping of magnetic flow liquid between supporting drum and seal casinghousing, and the torsional oscillation reduced on transmission shaft vibrates thus improves the chattering phenomenon of transmission shaft.
Description
Technical field
The utility model belongs to the vibration damping field of mechanical drive shaft, is specifically related to the torsional vibration damper that a kind of damping is adjustable.
Background technique
Society economy develops rapidly, and the raising greatly of manufacturing efficiency, all be unable to do without mechanical structure.In mechanical mechanism, have different transmission device, the transmission shaft driven of mechanical mechanism is a kind of mode be in daily use, but obvious shake can occur transmission shaft when the transmission shaft low speed rotation of mechanical mechanism, thus affects the performance of whole mechanical mechanism.Because modern mechanical device needs to use under the operating mode of different rotating speeds usually, and traditional torsion dynamic vibration absorber is definite value due to damping, can not change according to the change of rotating speed, can only carry out vibration damping in specific frequency, and use has narrow limitation.Therefore, design the torsional vibration damper that a kind of damping that can use under different operating mode is adjustable, the resistance to shock improving mechanical drive shaft is had great importance.
Summary of the invention
For the defect existed in above-mentioned prior art or deficiency, the purpose of this utility model is, provides the torsional vibration damper that a kind of damping is adjustable.
In order to realize above-mentioned task, the utility model adopts following technical solution to be achieved:
The torsional vibration damper that damping is adjustable, comprises seal casinghousing, coaxially arranges supporting drum in seal casinghousing, and the inwall of described seal casinghousing is equidistantly provided with four outstanding housing ribs for one week, the length direction of housing ribs and the axial consistent of seal casinghousing; Each housing ribs there are several pod apertures; Be perfused with magnetic flow liquid in cavity between seal casinghousing and supporting drum, magnetic flow liquid can flow in the pod apertures in housing ribs; Seal casinghousing outer wall is provided with two radially symmetrical magnetic conductive parts; Two magnetic conductive part outsides are wound with coil jointly; Be provided with two ring shaped conductive supports in the both sides correspondence of the axis of seal casinghousing, ring shaped conductive support is overlapping with the shaft axis of seal casinghousing; At ring shaped conductive support and the brush being connected with at least one between closed shell and being connected with coil.
Further, described each housing ribs there are four pod apertures.
Further, described supporting drum is a cylinder, and its outer wall is equidistantly provided with four outstanding supporting drum ribs for one week, and the length direction of supporting drum rib is the axis of supporting drum; The supporting drum rib of supporting drum and housing ribs replace one by one.
Further, described transmission shaft is coaxially through seal casinghousing and supporting drum.
Further, described supporting drum inwall is provided with keyway, and supporting drum is connected with the transmission shaft in supporting drum with the cooperation of key by this keyway, is fixed between transmission shaft and seal casinghousing by rolling bearing.
Further, rubber seal is provided with between described transmission shaft and seal casinghousing.
Further, the shape of described magnetic conductive part is horse shoe shaped.
Further, describedly between ring shaped conductive support and closed shell, four brushes are connected with.
The torsional vibration damper that damping of the present utility model is adjustable is installed on transmission shaft, when there is vibration at different rotating speeds in transmission shaft, the size in the magnetic field produced by regulating winding changes the damping of magnetic flow liquid between supporting drum and seal casinghousing, and the torsional oscillation reduced on transmission shaft vibrates thus improves the chattering phenomenon of transmission shaft.This torsional vibration damper reaches damping requirements to enable mechanical drive shaft operating mode at different frequencies.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable torsional vibration damper of damping of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to cut away view.
Mark implication in figure: 1, transmission shaft, 2, rolling bearing, 3, coil, 4, supporting drum, 5, seal casinghousing, 6, magnetic flow liquid, 7, magnetic conductive part, 8, ring shaped conductive support, 9, brush.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
See Fig. 1, the torsional vibration damper that the damping of the present embodiment is adjustable, comprise seal casinghousing 5 and be positioned at the supporting drum 4 of seal casinghousing 5, the internal cavities of seal casinghousing 5 is cylindrical.
The inwall of seal casinghousing 5 is equidistantly provided with four outstanding housing ribs 51 for one week, the length direction of housing ribs 51 and the axial consistent of seal casinghousing 5; Each housing ribs 51 there are four pod apertures 52; Seal casinghousing 5 outer wall is provided with two radially symmetrical magnetic conductive parts 7, and the shape of magnetic conductive part 7 is horse shoe shaped; Two magnetic conductive part 7 outsides are wound with coil 3 jointly.
In the present embodiment, magnetic conductive part 7 adopts the ironcasting of energy magnetic conduction, produces electromagnetic induction to realize coil 3 with magnetic conduction 7.
Supporting drum 4 is a cylinder, and its outer wall is equidistantly provided with four outstanding supporting drum ribs 41 for one week, and the length direction of supporting drum rib 41 is the axis of supporting drum 4; Supporting drum rib 41 and the housing ribs 51 of supporting drum 4 replace one by one, and are perfused with magnetic flow liquid 6 in cavity between seal casinghousing 5 and supporting drum 4, and magnetic flow liquid 6 can flowing in the pod apertures 52 in housing ribs 51.
Transmission shaft 1 is coaxially through seal casinghousing 5 and supporting drum 4, supporting drum 4 inwall is provided with keyway, supporting drum 4 is connected with the transmission shaft 1 in supporting drum 4 with the cooperation of key by this keyway, is fixed between transmission shaft 1 and seal casinghousing 5 by rolling bearing, and blend rubber seal ring seals.
Be provided with two ring shaped conductive supports 8 in the both sides correspondence of the axis of seal casinghousing 5, ring shaped conductive support 8 is overlapping with the shaft axis of seal casinghousing 5; Four brushes 9 are connected with between ring shaped conductive support 8 and closed shell 5.
Ring shaped conductive support 8 is fixed on vehicle frame, and in order to power to the brush 9 be arranged on seal casinghousing 5, brush 9 is connected with coil 3 by wire.
Working principle of the present utility model is as follows:
When transmission shaft 1 rotates, drive supporting drum 4 to rotate in seal casinghousing 5, because seal casinghousing 5 inside is full of magnetic flow liquid 6, seal casinghousing 5 can be driven when supporting drum 4 rotates to rotate together.Seal casinghousing 5 is provided with brush 9, can the electric current supply coil 3 on ring shaped conductive support 8, the magnetic conductive part 7 that coil 3 is wrapped in closed shell 5 outer wall is used for producing magnetic field.
Magnetic flow liquid 6 is controlled fluid, is the suspension mixed by high magnetic permeability, low hysteresis small soft magnetic particles and non-magnetic liquid.This suspension presents low viscous Newtonian fluid characteristic under zero magnetic field condition; And under strong magnetic field action, then present the Bingham fluid characteristic of high viscosity, lazy flow, and along with the enhancing of electric current, magnetic field is strengthened, the shear yield strength of its fluid is larger, is applied to controlled dynamic vibration absorber with this characteristic.It is moment that the stream of magnetic flow liquid under magnetic fields becomes, reversible and it flows the shear yield strength after becoming and magnetic intensity has stable corresponding relation.
When the rotating speed of transmission shaft 1 changes, electric current by changing ring shaped conductive support 8 changes the electric current of coil 3, the magnetic intensity then importing closed shell 5 inside by magnetic conductive part 7 also changes accordingly, thus change the damping of the inner magnetic flow liquid 6 of closed shell 5, due to the ratio of transmission shaft 1 actual amplitude and quiet torsional deflection and power gain A relevant with damping, so carry out vibration damping by changing damping to transmission shaft 1.
To sum up, when using under the operating mode of mechanical device at different rotating speeds, realizing vibration damping by device of the present utility model, effectively can improve the jitter phenomenon of mechanical mechanism.
Claims (6)
1. the torsional vibration damper that a damping is adjustable, comprise seal casinghousing, in seal casinghousing, coaxially supporting drum is set, it is characterized in that, the inwall of described seal casinghousing is equidistantly provided with four outstanding housing ribs for one week, the length direction of housing ribs and the axial consistent of seal casinghousing; Each housing ribs there are several pod apertures; Be perfused with magnetic flow liquid in cavity between seal casinghousing and supporting drum, magnetic flow liquid can flow in the pod apertures in housing ribs; Seal casinghousing outer wall is provided with two radially symmetrical magnetic conductive parts; Two magnetic conductive part outsides are wound with coil jointly; Be provided with two ring shaped conductive supports in the both sides correspondence of the axis of seal casinghousing, ring shaped conductive support is overlapping with the shaft axis of seal casinghousing; At ring shaped conductive support and the brush being connected with at least one between closed shell and being connected with coil.
2. the torsional vibration damper that damping as claimed in claim 1 is adjustable, is characterized in that described each housing ribs there are four pod apertures.
3. the torsional vibration damper that damping as claimed in claim 1 is adjustable, it is characterized in that, described supporting drum is a cylinder, and its outer wall is equidistantly provided with four outstanding supporting drum ribs for one week, and the length direction of supporting drum rib is the axis of supporting drum; The supporting drum rib of supporting drum and housing ribs replace one by one.
4. the torsional vibration damper that damping as claimed in claim 1 is adjustable, it is characterized in that, described supporting drum inwall is provided with keyway, and supporting drum is connected with the transmission shaft in supporting drum with the cooperation of key by this keyway, is fixed between transmission shaft and seal casinghousing by rolling bearing.
5. the torsional vibration damper that damping as claimed in claim 1 is adjustable, it is characterized in that, the shape of described magnetic conductive part is horse shoe shaped.
6. the torsional vibration damper that damping as claimed in claim 1 is adjustable, is characterized in that, describedly between ring shaped conductive support and closed shell, is connected with four brushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555240.3U CN204253727U (en) | 2014-09-25 | 2014-09-25 | The torsional vibration damper that a kind of damping is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555240.3U CN204253727U (en) | 2014-09-25 | 2014-09-25 | The torsional vibration damper that a kind of damping is adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253727U true CN204253727U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555240.3U Expired - Fee Related CN204253727U (en) | 2014-09-25 | 2014-09-25 | The torsional vibration damper that a kind of damping is adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253727U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879441A (en) * | 2015-04-14 | 2015-09-02 | 重庆大学 | Magneto-rheological vibration reduction structure for rotation transmission part |
| CN105782339A (en) * | 2016-02-29 | 2016-07-20 | 重庆大学 | Variable-inertia and variable-damping torsion damper |
| CN106402253A (en) * | 2016-10-10 | 2017-02-15 | 杭州电子科技大学 | Torsional vibration adjustment device based on magnetorheology |
| CN106406079A (en) * | 2016-11-21 | 2017-02-15 | 清华大学 | Vehicle, magnetorheological fluid type vehicle shock absorbing seat control device and method thereof |
| CN106870621A (en) * | 2017-03-15 | 2017-06-20 | 上海工程技术大学 | A kind of self-adaptation type magnetic flow liquid torsional vibration damper |
| CN112405594A (en) * | 2020-11-10 | 2021-02-26 | 珠海格力电器股份有限公司 | Robot joint vibration damping device and robot |
-
2014
- 2014-09-25 CN CN201420555240.3U patent/CN204253727U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879441A (en) * | 2015-04-14 | 2015-09-02 | 重庆大学 | Magneto-rheological vibration reduction structure for rotation transmission part |
| CN105782339A (en) * | 2016-02-29 | 2016-07-20 | 重庆大学 | Variable-inertia and variable-damping torsion damper |
| CN106402253A (en) * | 2016-10-10 | 2017-02-15 | 杭州电子科技大学 | Torsional vibration adjustment device based on magnetorheology |
| CN106402253B (en) * | 2016-10-10 | 2018-09-04 | 杭州电子科技大学 | Based on magnetorheological twisting vibration regulating device |
| CN106406079A (en) * | 2016-11-21 | 2017-02-15 | 清华大学 | Vehicle, magnetorheological fluid type vehicle shock absorbing seat control device and method thereof |
| CN106870621A (en) * | 2017-03-15 | 2017-06-20 | 上海工程技术大学 | A kind of self-adaptation type magnetic flow liquid torsional vibration damper |
| CN106870621B (en) * | 2017-03-15 | 2019-01-18 | 上海工程技术大学 | A kind of self-adaptation type magnetorheological fluid torsional vibration damper |
| CN112405594A (en) * | 2020-11-10 | 2021-02-26 | 珠海格力电器股份有限公司 | Robot joint vibration damping device and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20160925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |