CN105370753A - Centrifugal electromagnetic clutch - Google Patents
Centrifugal electromagnetic clutch Download PDFInfo
- Publication number
- CN105370753A CN105370753A CN201510841549.8A CN201510841549A CN105370753A CN 105370753 A CN105370753 A CN 105370753A CN 201510841549 A CN201510841549 A CN 201510841549A CN 105370753 A CN105370753 A CN 105370753A
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- CN
- China
- Prior art keywords
- transmission shaft
- armature
- centrifugal
- iron block
- clutch
- 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.)
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Abstract
The invention discloses a centrifugal electromagnetic clutch which comprises a transmission shaft, a roller, armatures and iron blocks. The transmission shaft is connected with an external power shaft. At least four protrusions are uniformly distributed on the transmission shaft in the circumferential direction. The side, close to the transmission shaft, of each protrusion is sleeved with the corresponding armature. The armatures are fixedly connected with the transmission shaft. The side, close to the roller, of each protrusion is sleeved with the corresponding iron block. The iron blocks can move along the protrusions in the radial direction. A groove is formed in each armature. A coil is placed in each groove. The centrifugal electromagnetic clutch has the beneficial effects that currents are switched into the coils, the armatures generate electromagnetic force, and the iron blocks and the inner wall of the roller are made to be in a separated state through the electromagnetic force when the combination rotation speed is not reached, so that springs which are prone to damage in a traditional centrifugal clutch are omitted, and therefore the centrifugal electromagnetic clutch is high in reliability, stable in working performance and simple in structure.
Description
Technical field
The present invention relates to centrifugal clutch, be specially a kind of centrifugal magnetic clutch.
Background technique
Centrifugal clutch is that a kind of centrifugal force relying on centrifugal body to produce reaches the clutch being automatically separated or combining; centrifugal clutch arrangement is simple, compact dimensions; just can control it by the rotating speed controlling transmission shaft to combine or be separated; without the need to special operating mechanism; after overload, centrifugal clutch also can skid automatically; having safety protection effect, is therefore widely used a kind of clutch on engineering goods.
Centrifugal clutch is in order to reduce frictional heating, prevent the wearing and tearing of centrifugal body, therefore centrifugal clutch needs when transmission shaft does not reach synchronous speed to make centrifugal-block be separated with driven member, conventional centrifugal clutch adopts and arrange spring between transmission shaft and centrifugal-block, by the active force of spring, centrifugal-block is separated with driven member, this kind of centrifugal clutch due to spring long-term stressed fragile, therefore the clutch reliability of this structure is lower, and service behaviour is unstable.
Summary of the invention
The invention is intended to provide a kind of reliability high, the centrifugal magnetic clutch of stable work in work.
Centrifugal magnetic clutch in this programme, comprise transmission shaft, cylinder, armature and iron block, transmission shaft is connected with external impetus axle, transmission shaft circumference is evenly equipped with at least four projections, and armature is sheathed on the protruding side near transmission shaft, and armature is fixedly connected with transmission shaft, iron block is sheathed on the protruding side near cylinder, iron block along protruding radial motion, armature can offer groove, is placed with coil in groove.
The working principle of this programme is: be connected with external impetus axle by transmission shaft, electric current is passed in coil, armature produces electromagnetic force under the effect of electric current, when shaft speed does not reach in conjunction with rotating speed, under the effect of electromagnetic force, armature attracts iron block that iron block is separated with cylinder inner circle, when shaft speed reaches the rotating speed of clutch combination, the centrifugal force that now iron block is subject to will be greater than the electromagnetic force of armature, under the influence of centrifugal force, iron block will move along projection to cylinder direction, until iron block cylindrical is combined with cylinder inner circle, cylinder gets up at the move under influence of iron block frictional force, it is now the bonding state of clutch.
The beneficial effect of this programme is: by passing into electric current in coil, armature produces electromagnetic force, electromagnetic force makes iron block and inner wall of rotary drum be in separated state in conjunction with during rotating speed not reaching, thus avoid flimsy spring in use conventional centrifugal clutch, therefore clutch reliability in this programme is high, stable work in work and structure is simple.
Further, in order to make the uniform force between cylinder and iron block, projection is circumferential uniform 6.
Further, in order to increase the frictional force between iron block and cylinder, improve the reliability of transmission, be provided with friction plate outside iron block, friction plate outer arc radius equals described cylinder inner circle radius of arc.
Further, can demagnetization as early as possible when stopping to make armature passing into electric current, armature adopts demagnetization, and soft iron or magnet steel are made faster.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference character in Figure of description comprises: transmission shaft 1, cylinder 2, projection 3, armature 4, coil 5, iron block 6, friction plate 7.
Embodiment is substantially as shown in Figure 1: centrifugal magnetic clutch, comprises transmission shaft 1, and transmission shaft 1 has keyway, and transmission shaft 1 is connected with external impetus axle by flat key.
At transmission shaft 1 excircle to being evenly equipped with six projections 3, this projection 3 is divided into two sections according to the difference of boundary dimension, the boundary dimension of its protrusions 3 near cylinder 2 side is less, the boundary dimension of projection 3 near transmission shaft 1 side is larger, one end that protruding 3 boundary dimension are larger and transmission shaft 1 offset, and have certain distance between one end that protruding 3 boundary dimension are less and cylinder 2 inner circle.
Armature 4 is had near transmission shaft 1 side cover protruding 3, armature 4 adopts demagnetization, and soft iron or magnet steel are made faster, armature 4 adopts with transmission shaft 1 and is fixedly connected with, in the present embodiment, armature 4 and transmission shaft 1 directly adopt welding manner to be fixed together, offer a groove at armature 4 near cylinder 2 side, in groove, be placed with coil 5, when passing into electric current in coil 5, armature 4 will produce magnetic under the effect of electric current, and this magnetic will attract iron block 6 near armature 4.
Iron block 6 is provided with near cylinder 2 side protruding 3, iron block 6 kink also can along protruding 3 radial motions on protruding 3, on protruding 3, the position of profile dimensional changes will be carried out spacing to the motion of iron block 6, at iron block 6 cylindrical, place is also provided with friction plate 7, this friction plate 7 can be used for increasing the frictional force between cylinder 2, improve the reliability of transmission, the inner circle radius of arc of this friction plate 7 equals iron block 6 outer arc radius, and friction plate 7 outer arc radius equals cylinder 2 inner circle radius of arc.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. centrifugal magnetic clutch, it is characterized in that, comprise transmission shaft, cylinder, armature and iron block, described transmission shaft is connected with external impetus axle, described transmission shaft circumference is evenly equipped with at least four projections, described armature is sheathed on the side of described projection near described transmission shaft, described armature is fixedly connected with described transmission shaft, described iron block is sheathed on the side of described projection near described cylinder, described iron block can along described protruding radial motion, described armature offers groove, in described groove, is placed with coil.
2. centrifugal magnetic clutch according to claim 1, is characterized in that: described projection is circumferential uniform 6.
3. centrifugal magnetic clutch according to claim 1, is characterized in that: be provided with friction plate outside described iron block, and described friction plate outer arc radius equals described cylinder inner circle radius of arc.
4. centrifugal magnetic clutch according to claim 1, is characterized in that: described armature adopts demagnetization, and soft iron or magnet steel are made faster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841549.8A CN105370753A (en) | 2015-11-28 | 2015-11-28 | Centrifugal electromagnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841549.8A CN105370753A (en) | 2015-11-28 | 2015-11-28 | Centrifugal electromagnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370753A true CN105370753A (en) | 2016-03-02 |
Family
ID=55373244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841549.8A Pending CN105370753A (en) | 2015-11-28 | 2015-11-28 | Centrifugal electromagnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370753A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479145A (en) * | 2016-02-03 | 2016-04-13 | 中山市工业技术研究中心 | Magnetic force swinging drive plate |
| CN107191506A (en) * | 2017-06-19 | 2017-09-22 | 斯迪尔传动科技(厦门)有限公司 | Magnetic centrifugal formula clutch |
| CN113636489A (en) * | 2021-08-09 | 2021-11-12 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
-
2015
- 2015-11-28 CN CN201510841549.8A patent/CN105370753A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479145A (en) * | 2016-02-03 | 2016-04-13 | 中山市工业技术研究中心 | Magnetic force swinging drive plate |
| CN107191506A (en) * | 2017-06-19 | 2017-09-22 | 斯迪尔传动科技(厦门)有限公司 | Magnetic centrifugal formula clutch |
| CN113636489A (en) * | 2021-08-09 | 2021-11-12 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
| CN113636489B (en) * | 2021-08-09 | 2023-03-10 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
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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: 20160302 |