CN105370762A - Normally open type centrifugal clutch - Google Patents
Normally open type centrifugal clutch Download PDFInfo
- Publication number
- CN105370762A CN105370762A CN201510841793.4A CN201510841793A CN105370762A CN 105370762 A CN105370762 A CN 105370762A CN 201510841793 A CN201510841793 A CN 201510841793A CN 105370762 A CN105370762 A CN 105370762A
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- CN
- China
- Prior art keywords
- centrifugal
- rotor
- shell
- iron block
- clutch
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Abstract
The invention discloses a normally open centrifugal clutch, which comprises a driving shaft, a rotor and a shell, wherein the excircle of the driving shaft is connected with the rotor in a matching way; the rotor and the shell are concentrically arranged; four bulges are uniformly distributed on the periphery of the rotor; a groove is formed between each two adjacent bulges; a centrifugal iron block is clamped in each groove; the centrifugal iron blocks can radially move along the bulges; a permanent magnet is arranged between each centrifugal iron block and the rotor; and the permanent magnets are arranged on the external surface of the rotor. The normally open centrifugal clutch has the beneficial effects that the characteristic of the permanent magnets is utilized, when the driving shaft does not reach the synchronous rotating speed required, the permanent magnets attract the centrifugal iron blocks so as to separate the centrifugal iron blocks from the shell; when the driving shaft reaches the synchronous rotating speed, the centrifugal iron blocks overcome the attraction of the permanent magnets to be jointed with the shell, so that the problems that friction and heating occur between the centrifugal iron blocks and the shell before the traditional centrifugal clutch reaches the synchronous rotating speed are avoided. The normally open centrifugal clutch is suitable for the work condition with frequent start, and the clutch is simple in structure.
Description
Technical field
The present invention relates to clutch, be specially a kind of centrifugal clutch open in usual.
Background technique
Clutch is similar to switch, engage or cut off transmission of power, the active part of clutch mechanism can temporarily be separated with secondary part, can engage gradually again, clutch can be divided into mechanical clutch, pneumatic type clutch, hydraulic clutch, magnetic clutch, free wheel device, centrifugal clutch and safety clutch etc.
Centrifugal clutch is a kind of clutch of common form, centrifugal clutch is generally made up of three parts: driving link, centrifugal and driven member, the driving and driven part of centrifugal clutch is before reaching synchronous axial system, the cohesive process of centrifugal body and driven member is actual is sliding friction process, in the process by the wearing and tearing with frictional heating and friction pair, and consume the energy of a part, therefore centrifugal clutch should not be used for the operating mode of Fraquent start.
Summary of the invention
The invention is intended to provide a kind of operating mode being applicable to Fraquent start, and the simple centrifugal clutch open in usual of structure.
Centrifugal clutch open in usual in this programme, comprise driving shaft, rotor and shell, driving shaft cylindrical is connected with rotor engagement, rotor is arranged with shell is concentric, and periphery of rotor is evenly equipped with four projections, is formed with groove between adjacent two projections, centrifugal iron block is all arranged with in groove, centrifugal iron block along protruding radial motion, can be equipped with permanent magnet between centrifugal iron block and rotor, and permanent magnet is arranged on the outer surface of rotor.
The working principle of this programme is: arrange permanent magnet at rotor outer surface, permanent magnet produces attraction force to centrifugal iron block, when driving shaft is static or speed is lower, under the attraction force of permanent magnet, centrifugal iron block is separated with shell, now not transmitting torque, for the separated state of clutch, when driving shaft rotating speed reaches certain value, centrifugal iron block produces larger centrifugal force, the direction of centrifugal force is contrary with the direction of attraction force, when centrifugal force is greater than attraction force, centrifugal iron block will move to direction, centrifugal force place, namely centrifugal iron block is along protruding outwards shell side to moving, when centrifugal iron block and shell are fitted, drive shell moves by centrifugal iron block together, thus reach the object of driving torque, namely the joint of clutch is realized.
The beneficial effect of this programme is: utilize permanent magnet to produce the characteristic of attraction force to object, at rotor outer surface, permanent magnet is set, when driving shaft does not meet the requirements of synchronous speed, centrifugal iron block is attracted to make centrifugal iron block and shell realize being separated by permanent magnet, when driving shaft reaches synchronous speed, centrifugal iron block overcomes permanent magnet attraction force and engages with shell, thus the friction avoiding conventional centrifugal clutch to produce between centrifugal iron block and shell before reaching synchronous speed and heating, therefore the clutch in this programme is applicable to the operating mode of Fraquent start, and clutch configuration is simple.
Further, in order to make the stable connection between permanent magnet and rotor reliable, permanent magnet and rotor are linked together by Cock screw.
Further, in order to increase the frictional force between centrifugal iron block and shell, improve the reliability of transmission of torque, the centrifugal iron block of every block is equipped with friction plate towards shell side.
Further, projection offers the second groove, projection is offered the kind that the second groove can alleviate whole slewing gear, thus reduce the energy loss of slewing gear.
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: driving shaft 1, rotor 2, shell 3, centrifugal iron block 4, friction plate 5, projection 6, permanent magnet 7.
Embodiment is substantially as shown in Figure 1: centrifugal clutch outermost open in usual is shell 3, shell 3 is boring structure, in shell 3 boring structure be provided with rotor 2, rotor 2 is concentric with shell 3, rotor 2 inner circle offers keyway, rotor 2 inner circle is enclosed within driving shaft 1 cylindrical, and also have keyway at driving shaft 1 cylindrical and rotor 2 keyway opposite position, driving shaft 1 is connected by the flat key be arranged in keyway with both rotors 2.
Rotor 2 excircle is to being evenly equipped with four projections 6, protruding 6 is a class funnel shaped, projection 6 is wider towards shell 3 side, protruding 6 coordinate side narrower with rotor 2, the width in protruding 6 thicker end faces can make centrifugal iron block 4 just put down with adjacent two these places of projection 6 to be as the criterion, the width in protruding 6 narrow end faces is less than the width of centrifugal iron block 4 with the distance between adjacent two these places of projection 6, protruding 6 are rounded down with rotor 2 cylindrical connecting part, the end face side wider in projection 6 has the second groove, centrifugal iron block 4 is provided with in the groove that two adjacent projections 6 are formed, centrifugal iron block 4 totally four, centrifugal iron block 4 is the meniscate structure of class, the adjacent axial both sides of two projections 6 to centrifugal iron block 4 are carried out spacing, also there is leading role to the radial motion of centrifugal iron block 4 simultaneously, when the radial length of protruding 6 moves to limit position with centrifugal iron block 4, protruding 6 still can have certain length of thread engagement to be as the criterion with centrifugal iron block 4.
A friction plate 5 is all connected with in the outside of each centrifugal iron block 4, this friction plate 5 inner circle circular arc radius of curvature equals centrifugal iron block 4 cylindrical circular arc radius of curvature, friction plate 5 cylindrical circular arc radius of curvature equals shell 3 inner circle circular arc radius of curvature, friction plate 5 is when fitting with shell 3 inwall, can larger frictional force be produced, thus make the transmission of power more reliable.
Four permanent magnets 7 altogether are also provided with in the groove that adjacent two projections 6 are formed, permanent magnet 7 is fitted with rotor 2 cylindrical and is connected by Cock screw between the two, permanent magnet 7 inner arc radius of curvature equals rotor 2 cylindrical circular arc radius of curvature, and the axial both sides of permanent magnet 7 offset with protruding 6.
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. a centrifugal clutch open in usual, comprise driving shaft, rotor and shell, described driving shaft cylindrical is connected with described rotor engagement, described rotor is arranged with described shell is concentric, described periphery of rotor is evenly equipped with four projections, groove is formed between adjacent two described projections, centrifugal iron block is all arranged with in described groove, described centrifugal iron block can along described protruding radial motion, it is characterized in that, be equipped with permanent magnet between described centrifugal iron block and described rotor, described permanent magnet is arranged on the outer surface of described rotor.
2. centrifugal clutch open in usual according to claim 1, is characterized in that: described permanent magnet and described rotor are linked together by Cock screw.
3. centrifugal clutch open in usual according to claim 2, is characterized in that: described centrifugal iron block is also provided with friction plate towards described shell side.
4. centrifugal clutch open in usual according to claim 1, is characterized in that: described projection offers the second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841793.4A CN105370762A (en) | 2015-11-28 | 2015-11-28 | Normally open type centrifugal clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841793.4A CN105370762A (en) | 2015-11-28 | 2015-11-28 | Normally open type centrifugal clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370762A true CN105370762A (en) | 2016-03-02 |
Family
ID=55373249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841793.4A Pending CN105370762A (en) | 2015-11-28 | 2015-11-28 | Normally open type centrifugal clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370762A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107448505A (en) * | 2017-08-02 | 2017-12-08 | 汤树人 | It is a kind of without control at a high speed triggering and can low speed keep clutch |
| CN109611465A (en) * | 2018-12-27 | 2019-04-12 | 杨世国 | A kind of centrifugation permanent magnetic automatic clutch of revolving speed and the two-parameter control of torque |
| WO2023225769A1 (en) * | 2022-05-21 | 2023-11-30 | 林武光 | Hydraulic clutch brake |
-
2015
- 2015-11-28 CN CN201510841793.4A patent/CN105370762A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107448505A (en) * | 2017-08-02 | 2017-12-08 | 汤树人 | It is a kind of without control at a high speed triggering and can low speed keep clutch |
| CN109611465A (en) * | 2018-12-27 | 2019-04-12 | 杨世国 | A kind of centrifugation permanent magnetic automatic clutch of revolving speed and the two-parameter control of torque |
| CN109611465B (en) * | 2018-12-27 | 2021-02-19 | 杨世国 | Centrifugal permanent-magnet automatic clutch with rotation speed and torque double-parameter control |
| WO2023225769A1 (en) * | 2022-05-21 | 2023-11-30 | 林武光 | Hydraulic clutch brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |
|
| WD01 | Invention patent application deemed withdrawn after publication |