CN104019157A - Electromagnetic brake - Google Patents
Electromagnetic brake Download PDFInfo
- Publication number
- CN104019157A CN104019157A CN201410262795.3A CN201410262795A CN104019157A CN 104019157 A CN104019157 A CN 104019157A CN 201410262795 A CN201410262795 A CN 201410262795A CN 104019157 A CN104019157 A CN 104019157A
- Authority
- CN
- China
- Prior art keywords
- armature
- stator
- roller
- friction plate
- electromagnetic brake
- 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.)
- Pending
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Abstract
The invention discloses an electromagnetic brake which comprises an annular stator fixed on a machine frame, wherein a magnetic yoke and a coil are installed inside the stator, a friction plate is attached to the working end face of the stator, the shaft end of a roller is inserted into a hole in the center of the stator, an armature sliding key is connected to the shaft end of the roller, and an adjusting nut used for fastening an armature is arranged at the shaft end of the roller. When the roller needs to be braked, direct currents are introduced to the coil, the magnetic yoke excites magnetism, the armature slides in the axial direction and makes tight contact with the friction plate arranged on the working end face of the right side of the stator under the action of magnetic force generated by the magnetic field, friction moment is formed on the friction plate by means of the fixed stator, and then the roller is braked by the armature through the key. After brake is finished, the coil is powered off, and a tension spring on the armature enables the armatures to restore so that the contact between the armature and the friction plate is broken. The electromagnetic brake has the advantages of being small in size, quick in response, sensitive in motion, and capable of bearing high-frequency braking motion.
Description
Technical field
The present invention relates to the brake member of textile manufacturing machine, be specifically related to the electromagnetic brake of warping machine.
Background technique
The effect of warping machine braking device is in the time of the full axle of warp end break or warp beam, by the rapid stop of cylinder of warp beam or transmission warp beam, thereby more exempts from not wait the hard waste causing to waste because broken end is involved in the scarce warp and the warp length that cause.For novel high speed warping machine, except warp beam braking, also need pressure roller, measuring roller to brake, and require three's synchronous braking.Adopt at present mechanical brake, have that volume is large, a response lag, the problem that is difficult to high frequency braking.
Summary of the invention
The object of the present invention is to provide a kind of electromagnetic brake, there is the braking maneuver that volume is little, be swift in response, be active in one's movements, can bear high frequency.
For achieving the above object, technological scheme of the present invention is: electromagnetic brake, comprise the stator that is fixed on annular in frame, magnetic is equipped with often and coil in the inside of described stator, in the operative end surface of stator, post friction plate, the axle head of pressure roller inserts in the hole of stator center, and armature slide key is connected to the axle head of pressure roller, and the axle head of pressure roller is provided with the adjusting nut of fastening armature.
While adopting technique scheme, need to brake pressure roller time, coil is connected to direct current, yoke is excitatory, under the magnetic force producing in magnetic field, armature slide axially and with the right side operative end surface of stator on friction plate close contact, utilize fixing stator to form friction torque to friction plate, armature is braked pressure roller by key again.After end of braking, coil blackout, the tension spring on armature makes armature return, disconnects the contact condition of armature and friction plate.Said structure has advantages of the braking maneuver that volume is little, be swift in response, be active in one's movements, can bear high frequency.
Further, described armature is " protruding " font.
Further, described adjusting nut is permanent magnet.The adjusting nut that adopts permanent magnet to make, can produce magnetic force to armature on the one hand, auxiliary tension spring effect armature return.Can, in the situation that tension spring is malfunctioning, play to a certain extent the effect of return to armature on the other hand.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is electromagnetic brake embodiment's of the present invention structural representation.
Embodiment
As shown in Figure 1, electromagnetic brake of the present invention, stator 2 can be packed in frame by bolt, and magnetic often 3 and coil 4 is equipped with in the inside of stator 2, in the right side operative end surface of stator 2, post friction plate 5, armature 6 adopts feather key or spline to be threaded with the axle head of pressure roller 1.Armature 6 can be processed into " protruding " font, in the gap between axle head and the stator 2 of its bump insertion pressure roller 1.Adjusting nut 7 is threaded in the axle head of pressure roller 1, for fastening armature 6, and adjusts the gap between armature 6 and friction plate 5.The sense of rotation of the rotation direction of adjusting nut 7 and pressure roller 1 matches, and avoids pressure roller 1 in rotation process, adjusting nut 7 to be unclamped.When braking, coil 4 is connected to direct current, yoke 3 is excitatory, under the magnetic force producing in magnetic field, armature 6 slide axially and with the right side operative end surface of stator 2 on friction plate 5 close contacts, utilize friction torque to brake pressure roller 1.After end of braking, coil 4 power-off, the tension spring (not shown) on armature 6 makes armature 6 returns.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; do not departing under the prerequisite of structure of the present invention; can also make some distortion and improvement; for example adjusting nut 7 can be made permanent magnet, and these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.
Claims (3)
1. electromagnetic brake, it is characterized in that, comprise the stator (2) that is fixed on annular in frame, often (3) and coil (4) of magnetic is equipped with in the inside of described stator (2), in the operative end surface of stator (2), post friction plate (5), the axle head of pressure roller (1) inserts in the hole at stator (2) center, and armature (6) slide key is connected to the axle head of pressure roller (1), the axle head of pressure roller (1) is provided with the adjusting nut (7) of fastening armature (6), and described armature (6) is provided with return spring.
2. electromagnetic brake according to claim 1, is characterized in that, described armature (6) is " protruding " font.
3. electromagnetic brake according to claim 1, is characterized in that, described adjusting nut (7) is permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262795.3A CN104019157A (en) | 2014-06-13 | 2014-06-13 | Electromagnetic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262795.3A CN104019157A (en) | 2014-06-13 | 2014-06-13 | Electromagnetic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104019157A true CN104019157A (en) | 2014-09-03 |
Family
ID=51436073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410262795.3A Pending CN104019157A (en) | 2014-06-13 | 2014-06-13 | Electromagnetic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104019157A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422696A (en) * | 2014-09-12 | 2016-03-23 | 小仓离合器有限公司 | Excitation-free action brake |
| CN109088510A (en) * | 2018-08-16 | 2018-12-25 | 居鹤华 | A kind of power loss internal contracting brake mechanism and its control method |
-
2014
- 2014-06-13 CN CN201410262795.3A patent/CN104019157A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422696A (en) * | 2014-09-12 | 2016-03-23 | 小仓离合器有限公司 | Excitation-free action brake |
| CN105422696B (en) * | 2014-09-12 | 2018-03-23 | 小仓离合器有限公司 | Non-excitation actuating brake |
| CN109088510A (en) * | 2018-08-16 | 2018-12-25 | 居鹤华 | A kind of power loss internal contracting brake mechanism and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140903 |