CN2861204Y - Magnetic retardation damper - Google Patents
Magnetic retardation damper Download PDFInfo
- Publication number
- CN2861204Y CN2861204Y CNU2005200982586U CN200520098258U CN2861204Y CN 2861204 Y CN2861204 Y CN 2861204Y CN U2005200982586 U CNU2005200982586 U CN U2005200982586U CN 200520098258 U CN200520098258 U CN 200520098258U CN 2861204 Y CN2861204 Y CN 2861204Y
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- utility
- model
- magnetic
- magnetic sheet
- 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
Links
Images
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a magnetic hysteresis damper. A group of permanent magnets of even quantity are arranged inside the external shell. The section assumes echelon or sector, and the North and South magnetic poles are arranged alternately along the circumference. One end of the permanent magnet attracts the magnetic sheet circle. A rotatable damped magnetic sheet is arranged on the other end of the permanent magnet. A gap Delta is provided between the permanent magnet and the damped magnetic slice. The damped magnetic sheet is fixedly connected with the revolution body, which is able to rotate around axis. When the utility model is used for tension implement of yarn, no sliding friction happens during the operating procedure, which effectively decreases intensity loss of the yarn fiber bundle. The utility model has the advantages of high utilization ratio of material, convenient processing, high productivity, and keeping precision in long period. The utility model also can be used as a shaft joint or a buffer-damp device.
Description
Technical field
The utility model relates to a kind of hysteresis damper that can impose damping torque to rotary body.
Background technology
In textile industry, need to control the tension force of yarn in the process of twisting thread.Early stage scheme: yarn is clipped in the slit of two parts, with steel ball or spring pressurization, increase and decrease steel ball number or increase and decrease spring force, the tension force of control yarn.This sliding friction pair makes the loss of strength of yarn fibers bundle strengthen.
With the similar hysteresis damper of the utility model, its permanent magnet, with big column magnetic material, line cuts into large circle earlier, and the hollow out line cuts out even number " lobe " again, magnetizes this method waste material, waste noble metal cobalt and machining period on each " lobe " again.The utility model has high utilization rate for material, and easy to process.
With the similar hysteresis damper of the utility model, its end play, to regulate with wide helicla flute, the intensity of axle is low, and digital control milling is many man-hour, and after working long hours, precision reduces.The utility model, its end play is regulated with standard thread, and the productivity ratio height keeps precision for a long time.
Summary of the invention
The purpose of this utility model just provides a kind of hysteresis damper, and the permanent magnet that adopts N, the S utmost point alternately to arrange is to the damping magnetic sheet of rotation, implement to magnetize, force demagnetization and magnetic reversal continuously, make permanent magnet always attract the damping magnetic sheet, hinder its rotation, produce damping torque.
The purpose of this utility model is achieved in that a kind of hysteresis damper, the permanent magnet 2 that in the shell 5 one group of quantity to be arranged be even number, and it is trapezoidal or fan-shaped that the cross section is, and N, S magnetic pole are arranged along circle alternate.One end of permanent magnet 2 is with 3 adhesives of magnetic conduction disk.The other end of permanent magnet 2 is provided with rotatable damping magnetic sheet 1, gapped δ between permanent magnet 2 and the damping magnetic sheet 1.Damping magnetic sheet 1 and rotary body 7 fixed connections, rotary body 7 can be around axle 4 rotations.
Described hysteresis damper, permanent magnet 2 is integral ring-shaped magnet, is divided into the even number zone, and subregion magnetizes, and N, S alternately arrange.
Axle 4 is with double thread or one start screw and shell 5 connections, and permanent magnet 2 and magnetic conduction disk 3 are installed on the shell 5.The turn shell makes its axial displacement, realizes the adjusting of gap delta.
There is tooth locating piece 6 upper ends, and shell 5 is provided with teeth groove, and the spring of locating piece 6 lower ends is stuck in the teeth groove on the shell 5 tooth of locating piece 6 upper ends, and the turn shell can be located later on.
Owing to adopt said structure, when initial, the each point on the magnetic sheet 1 is also attracted mutually by permanent magnet 2 magnetization.When magnetic sheet 1 rotates to next piece permanent magnet 2, forced demagnetization and magnetic reversal by its magnetic field.If magnetic sheet 1 rotates continuously, then this process is once and again carried out.Because magnetic sheet 1 rotation is formerly, after pressure demagnetization and magnetic reversal occur in, sluggish β angle.So permanent magnet 2 always attracts magnetic sheet 1, hinder its rotation, produce damping torque.When the utility model was used for yarn tensioner, fricton-tight friction in the course of work was so effectively reduced the loss of strength of yarn fibers bundle.The utility model also have the stock utilization height, easy to process, productivity ratio is high, can keep the advantage of precision for a long time.
Description of drawings
Be described further below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is an annular permanent magnet structural representation of the present utility model.
Fig. 4 is the embodiment that the utility model is used for yarn tensioner.
Fig. 5 is the embodiment that the utility model is used as shaft coupling.
Fig. 6 is the embodiment that the utility model is used as buffer unit.
Wherein, Fig. 1 double as Figure of abstract.
The specific embodiment
As shown in Figure 1, 2, a kind of hysteresis damper, the permanent magnet 2 that in the shell 5 one group of quantity to be arranged be even number, it is trapezoidal or fan-shaped that the cross section is, and N, S magnetic pole are arranged along circle alternate.One end of permanent magnet 2 is with 3 adhesives of magnetic conduction disk.The other end of permanent magnet 2 is provided with rotatable damping magnetic sheet 1, gapped δ between permanent magnet 2 and the damping magnetic sheet 1.Damping magnetic sheet 1 and rotary body 7 fixed connections, rotary body 7 can be around axle 4 rotations.
Axle 4 is with double thread or one start screw and shell 5 connections, and permanent magnet 2 and magnetic conduction disk 3 are installed on the shell 5.The turn shell makes its axial displacement, realizes the adjusting of gap delta.
Fig. 4 is an embodiment yarn tensioner of the present utility model, is used for straight twister, creel of textile industry etc.
Among Fig. 4, dot yarn.On rotary body 7, writhing number loop yarn line, an end add in advance than small tension receiving coil P1, and the pulling other end through damping, obtain than hightension P2, and P2 is adjustable.
The matrix of yarn tensioner is an aluminum frame 8.Wired dish 11 is installed on the plastic housing 12, and 12 and 11 is splits, and fastening with screw, this structure is better than making integral body, is easy to casting and divides mould, and the plastic housing cost is low, does not need machining.
Yarn enters tensioner from the lower end, and 11 pairs of yarns of steel ball 13 and wired dish apply tension force P1, are definite values, and are non-adjustable.
Yarn twines a few between driven pulley 10 and rotary body 7, increase frictional force, and yarn is upwards exported again through directive wheel 9.This moment, yarn tension reached P2, P2＞P1.
Yarn twines between driven pulley 10 and rotary body 7, pulls out from the top then.Its frictional force is enough to drive driven pulley 10 and rotary body 7 rotations, does not slide relatively basically.Because the torquer of magnetic hysteresis damping imposes adjustable damping torque to rotary body 7, therefore upwards the yarn of output has increased tension force, and tension force P2 is adjustable.
The axis of driven pulley 10 some angles that tilt can make the yarn that twines a few, are separated from each other, and are not overlapped.
Fig. 5 is that the utility model is used as shaft coupling.Damping magnetic sheet 1 connects with axle 21; Permanent magnet 2 connects with axle 22.The middle less clearance δ that keeps, if drive an axle, then another axle is followed rotation.Have start steady, contactless, do not rub, nonoverload and the little advantage of volume.If the axis of two axles is variant slightly or be less angle, but still transmission.
Fig. 6 is that the utility model is used as the buffering damping unit.The member of being made up of swing arm 31, fixed arm 32 and spring impacts for the interruption of external force and to have cushioning effect, but can not damping.Between swing arm 31 and fixed arm 32, install hysteresis damper additional, then to swing arm bidirectional damper vibration damping, and the no rebound phenomena of hysteresis damper itself.
Claims (4)
1, a kind of hysteresis damper, it is characterized in that: it is the permanent magnet of even number (2) that one group of quantity is arranged in the shell (5), it is trapezoidal or fan-shaped that the cross section is, and N, S magnetic pole are arranged along circle alternate, an end of permanent magnet (2), with magnetic conduction disk (3) adhesive, the other end of permanent magnet (2) is provided with rotatable damping magnetic sheet (1), gapped δ between permanent magnet (2) and the damping magnetic sheet (1), damping magnetic sheet (1) and rotary body (7) fixed connection, rotary body (7) can rotate around axle (4).
2, hysteresis damper according to claim 1 is characterized in that: permanent magnet (2) is integral ring-shaped magnet, is divided into the even number zone, and N, S magnetic pole are alternately arranged.
3, hysteresis damper according to claim 1 and 2 is characterized in that: axle (4) is with double thread or one start screw and shell (5) connection, and permanent magnet (2) and magnetic conduction disk (3) are installed on the shell (5).
4, hysteresis damper according to claim 1 and 2 is characterized in that: there is tooth locating piece (6) upper end, and shell (5) is provided with teeth groove, and the spring of locating piece (6) lower end is stuck in the teeth groove on the shell (5) tooth of locating piece (6) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200982586U CN2861204Y (en) | 2005-09-30 | 2005-09-30 | Magnetic retardation damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200982586U CN2861204Y (en) | 2005-09-30 | 2005-09-30 | Magnetic retardation damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861204Y true CN2861204Y (en) | 2007-01-24 |
Family
ID=37658830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200982586U Expired - Fee Related CN2861204Y (en) | 2005-09-30 | 2005-09-30 | Magnetic retardation damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861204Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397417A (en) * | 2013-07-27 | 2013-11-20 | 陕西华燕航空仪表有限公司 | Yarn tension constant device |
| CN103728006A (en) * | 2014-01-24 | 2014-04-16 | 中国计量科学研究院 | Electromagnetic damping device and method with three-dimensional magnetic field |
| CN105090277A (en) * | 2014-05-21 | 2015-11-25 | 白万本 | Magnetic force locking device |
| CN105151904A (en) * | 2015-08-03 | 2015-12-16 | 太原理工大学 | Compensable equilibrium winding magnetic-lag tensioner for textile machines |
| CN107902446A (en) * | 2017-11-29 | 2018-04-13 | 北京迈游信息科技有限公司 | A kind of paper-rubbing mechanism of integration map sale terminal machine |
| CN112161022A (en) * | 2020-09-27 | 2021-01-01 | 湖南省潇振工程科技有限公司 | Current vortex crank arm type buffer |
-
2005
- 2005-09-30 CN CNU2005200982586U patent/CN2861204Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397417A (en) * | 2013-07-27 | 2013-11-20 | 陕西华燕航空仪表有限公司 | Yarn tension constant device |
| CN103397417B (en) * | 2013-07-27 | 2016-06-01 | 陕西华燕航空仪表有限公司 | Yarn tension constant device |
| CN103728006A (en) * | 2014-01-24 | 2014-04-16 | 中国计量科学研究院 | Electromagnetic damping device and method with three-dimensional magnetic field |
| CN105090277A (en) * | 2014-05-21 | 2015-11-25 | 白万本 | Magnetic force locking device |
| CN105151904A (en) * | 2015-08-03 | 2015-12-16 | 太原理工大学 | Compensable equilibrium winding magnetic-lag tensioner for textile machines |
| CN105151904B (en) * | 2015-08-03 | 2017-12-08 | 太原理工大学 | It is a kind of to can compensate for balanced winding magnetic hysteresis tensioner for textile machine |
| CN107902446A (en) * | 2017-11-29 | 2018-04-13 | 北京迈游信息科技有限公司 | A kind of paper-rubbing mechanism of integration map sale terminal machine |
| CN112161022A (en) * | 2020-09-27 | 2021-01-01 | 湖南省潇振工程科技有限公司 | Current vortex crank arm type buffer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2861204Y (en) | Magnetic retardation damper | |
| CN1847127A (en) | Yarn traverse apparatus | |
| RU2008148804A (en) | DEVICE FOR INTRACORPORAL EXTENSION EQUIPPED BY WORKERS FOR TENSION SCREWS | |
| CN113202202A (en) | Novel tuned inertial mass rotary damper | |
| CN1159201C (en) | Actuator and thread brake comprising actuator | |
| CN1724740A (en) | Thread regulation device of sewing machine | |
| CN2791004Y (en) | Crystal lifting device | |
| CN206982125U (en) | A kind of assembling device of shaft end nut | |
| CN101047332A (en) | Power transmission system | |
| CN2131836Y (en) | Winding unit capable of maintaining constant tension | |
| CN115574057A (en) | Linear reciprocating motion driving device | |
| CN1576217A (en) | Energy storage means for a yarn guide of a textile machine for producing a cross-wound bobbin | |
| CN2644391Y (en) | Steel cord outer coiling machine | |
| CN2702979Y (en) | Yarn-paying-out type constant tension aramid fibre paying-out apparatus | |
| CN211574368U (en) | Driving mechanism of electronic expansion valve | |
| CN2918483Y (en) | Needle distance stop dog | |
| CN201187564Y (en) | Magnetic screw mechanism | |
| CN101041913A (en) | Balancing a nipper mechanism in a combing machine | |
| CN2504241Y (en) | Tension controller | |
| CN2731168Y (en) | Torsion spring electromagnetic clutch | |
| CN101538786B (en) | Multifunctional smart embroidery machine head of computerized embroidery machine | |
| CN2541415Y (en) | Constant tension plastic fiber winder | |
| CN100348384C (en) | Tension control and counting device | |
| CN2589493Y (en) | Small-sized coaxial type tensioner | |
| CN2801423Y (en) | Tension control and counting assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20100930 |