CN102881478A - Spring return type centrifugal clutch - Google Patents
Spring return type centrifugal clutch Download PDFInfo
- Publication number
- CN102881478A CN102881478A CN2012103900690A CN201210390069A CN102881478A CN 102881478 A CN102881478 A CN 102881478A CN 2012103900690 A CN2012103900690 A CN 2012103900690A CN 201210390069 A CN201210390069 A CN 201210390069A CN 102881478 A CN102881478 A CN 102881478A
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- Prior art keywords
- clutch
- pawl
- type centrifugal
- shaft
- return type
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Abstract
The invention discloses a spring return type centrifugal clutch. The spring return type centrifugal clutch comprises a clutch frame and a declutch shaft, wherein one end of the clutch frame is in transmission connection with a motor rotor shaft; the other end of the clutch frame extends into the declutch shaft; a first pawl and a second pawl are arranged on the end surface of the end of the clutch frame, which extends into the declutch shaft; one end of the first pawl and one end of the second pawl are hinged to the clutch frame through a first shaft pin; a return spring is connected between the first pawl and the second pawl; the other end of the declutch shaft is connected with a main shaft of a breaker; a declutch shaft sleeve is arranged in the declutch shaft in the way of matching the first pawl and the second pawl; teeth are formed in the declutch shaft sleeve; and when the clutch frame rotates and the rotation speed is high enough, the first pawl and the second pawl overcome the resistance of the return spring and are opened, and one end of the first pawl and one end of the second pawl are clamped in the teeth to drive the declutch shaft to rotate. The spring return type centrifugal clutch is simple in structure, easy to machine and relatively small in size. When the voltage is relatively low or the spring return type centrifugal clutch is just started, the rotation speed of the motor is relatively low and slave components of the clutch are not jointed, so that the motor is protected and is not subjected to hard reset. Therefore, the spring return type centrifugal clutch is safe and reliable.
Description
Technical field
The present invention relates to a kind of clutch, relate in particular to a kind of spring return type centrifugal clutch for electric operating mechanism of circuit-breaker.
Background technology
In the distribution apparatus killer switch, often can need to use a kind of motor-operating mechanism with bidirectional clutch, this kind operating mechanism purposes is normal operation motor drives reducing gear output torque or power when control circuit does not cut off the power supply, the operation of control circuit breaker on/off switch; When control circuit cuts off the power supply, use manual operation, directly pull the breaker main shaft on/off switch.Because the reducing gear gearratio is larger, so moment output mechanism and reducing gear must be thrown off manually the time, bidirectional clutch has been exactly the effect of throwing off reducing gear manually the time.
Traditional bidirectional clutch structure as shown in Figure 1, it comprises star-wheel 10 and is arranged at rotatably star-wheel 10 sprocket wheel 11 outward, be provided with two grooves 13 that are used for accommodating roller 12 on the described star-wheel 10, described groove 13 interior processing tiltedly carve 14, described 14 the both sides of tiltedly carving all arrange roller 12, and offer the spring eye for assembling spring 15 in the described groove 13, spring 15 is installed in the hole by sleeve 16, and the driving lever 17 of shift fork is arranged between each groove 13 interior two roller 12.Motor via reducer structure band movable sprocket 11 rotates during electric operating, and sprocket wheel 11 tiltedly carves 14 by roller 12 compression star-wheels 10, thereby drives the breaker main shaft on/off switch by the tooth-shape structure of star-wheel 10 endoporus.Thereby stir roller 12 clamp sleeves 16 by driving lever 17 in the time of manually spring 15 compressions are advanced in the star-wheel spring eye, roller 12 directly drives star-wheel 10 and rotates, thereby drives the breaker main shaft on/off switch, and this moment, sprocket wheel 11 and reducing gear were failure to actuate.
The bidirectional clutch complex structure of above-mentioned traditional structure, volume is larger, and some also will separate clutch principal and subordinate moving part by shift fork.Not only be subject in the use the restriction of miniaturized structure, and processing and manufacturing is cumbersome.
Summary of the invention
The object of the present invention is to provide a kind of spring return type centrifugal clutch, its have simple in structure, be easy to process, volume is little and security reliability is good characteristics, effectively solved the problem that bidirectional clutch exists in the prior art.
The objective of the invention is to be achieved through the following technical solutions:
A kind of spring return type centrifugal clutch, it comprises clutch frame and declutch shaft, wherein, one end and the rotor axis of electric of described clutch frame are in transmission connection, the other end stretches in the declutch shaft and on the end face of this end and is provided with first, 2 two ratchets, described first, one end of two ratchets is articulated on the clutch frame by the first pivot pin, and be connected with back-moving spring between the two, the other end of described declutch shaft is connected with breaker main shaft, and cooperate first in the described declutch shaft, two ratchets are provided with the separation axle sleeve, offer tooth in the described separation axle sleeve, when described clutch frame rotates, when rotating speed reaches enough large first, two ratchets overcome the back-moving spring resistance and open, and an end of two ratchets is stuck in and drives the declutch shaft rotation in the tooth.
Especially, described clutch frame is connected with rotor axis of electric by the second bearing pin.
Especially, described clutch frame is by shaft block ring, bearing, hole back-up ring and back end cover for motor axial restraint.
Especially, described declutch shaft is by bearing and shaft block ring and back end cover for motor axial restraint.
Especially, described separation axle sleeve adopts nylon material to make, with reduce in conjunction with the time noise.
Rotor axis of electric band dynamic clutch frame rotates, when rotating speed reaches when enough overcoming greatly the resistance of back-moving spring, two ratchets of on the clutch frame first and second around the first bearing pin scatter with separate axle sleeve in tooth engagement, drive to separate axle sleeve and declutch shaft and rotate, drive again decelerator and make that breaker main shaft is realized closing, the separating brake action.
When motor has just started or rotating speed when low, because first and second two the ratchet centrifugal force on the clutch frame also are unlikely to overcome the resistance of back-moving spring, the motor dry run can not drive the decelerator motion.Can manually directly control breaker main shaft this moment, and realization is closed, the separating brake action.
Beneficial effect of the present invention is, the described spring return type centrifugal clutch compared with prior art power of motor is directly passed to breaker main shaft by clutch drive reducing gear, realization is closed, sub-switching operation, direct manipulation of switches main shaft in the time of manually, and do not need to make clutch principal and subordinate moving part separately by shift fork, so not only simple in structure, be easy to processing, small volume; And when voltage lower or when just having started motor speed lower, clutch principal and subordinate moving part can not engage, and has protected motor to be unlikely to hard reboot, and is safe and reliable.
Description of drawings
Fig. 1 is the profile of traditional bidirectional clutch;
Fig. 2 is the end view of the spring return type centrifugal clutch that provides of the specific embodiment of the invention 1;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is the installation diagram of the spring return type centrifugal clutch that provides of the specific embodiment of the invention 1.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
See also Fig. 2 to shown in Figure 4, in the present embodiment, a kind of spring return type centrifugal clutch comprises clutch frame 21 and declutch shaft 20, one end of described clutch frame 21 and motor 28 armature spindles are in transmission connection by the second bearing pin 32, the other end stretches in the declutch shaft 20 and on the end face of this end and is provided with the first ratchet 23 and the second ratchet 24, one end of described the first ratchet 23 and the second ratchet 24 is articulated on the clutch frame 21 by the first pivot pin 22, and be connected with back-moving spring 25 between the two, the other end of described declutch shaft 20 is connected with breaker main shaft, and described declutch shaft 20 interior cooperation the first ratchets 23 are provided with the second ratchet 24 and separate axle sleeve 26, described separation axle sleeve 26 made by the nylon material of noise-reducing and its in offer tooth 27, when described clutch frame 21 rotates, overcome back-moving spring 25 resistances and open when rotating speed reaches enough large the first ratchet 23 and the second ratchet 24, an end of two ratchets is stuck in tooth 27 interior drive declutch shafts 20 and rotates.
The mode that described spring return type centrifugal clutch adopts two half-clutch devices axially all to fix, described clutch frame 21 passes through the rear end cap axial restraint of bearing 29 and shaft block ring 33 and motor 28 by shaft block ring 30, bearing 29, hole with the rear end cap axial restraint of back-up ring 31 with motor 28, described declutch shaft 20.
The course of work of described spring return type centrifugal clutch is: the armature spindle band dynamic clutch frame 21 of motor 28 rotates, when rotating speed reaches when enough overcoming greatly the resistance of back-moving spring 25, the first ratchet 23 on the clutch frame and the second ratchet 24 around the first bearing pin 22 scatter with separate axle sleeve 26 in tooth 27 engagements, drive to separate axle sleeve 26 and declutch shaft 20 rotates, drive again decelerator and make that breaker main shaft is realized closing, the separating brake action.
When motor has just started or rotating speed when low, because the resistance that the first ratchet 23 on the clutch frame 21 and the second ratchet 24 centrifugal force also are unlikely to overcome back-moving spring 25, the motor dry run can not drive the decelerator motion.Can manually directly control breaker main shaft this moment, and realization is closed, the separating brake action.
Above-mentioned spring return type centrifugal clutch is not only simple in structure, is easy to processing, small volume; And when voltage lower or when just having started motor speed lower, clutch principal and subordinate moving part can not engage, and has protected motor to be unlikely to hard reboot, and is safe and reliable.
Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention is not limited by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various variations and change, and these variations and change all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. spring return type centrifugal clutch, it comprises clutch frame and declutch shaft, it is characterized in that: an end and the rotor axis of electric of described clutch frame are in transmission connection, the other end stretches in the declutch shaft and on the end face of this end and is provided with first and second two ratchets, one end of described first and second ratchet is articulated on the clutch frame by the first pivot pin, and be connected with back-moving spring between the two, the other end of described declutch shaft is connected with breaker main shaft, and cooperate first and second ratchet to be provided with the separation axle sleeve in the described declutch shaft, offer tooth in the described separation axle sleeve.
2. spring return type centrifugal clutch according to claim 1; It is characterized in that: described clutch frame is connected with rotor axis of electric by the second bearing pin.
3. each described spring return type centrifugal clutch according to claim 1 and 2; It is characterized in that: described clutch frame is by shaft block ring, bearing, hole back-up ring and back end cover for motor axial restraint.
4. spring return type centrifugal clutch according to claim 1; It is characterized in that: described declutch shaft is by bearing and shaft block ring and back end cover for motor axial restraint.
5. according to claim 1 or 4 each described spring return type centrifugal clutches; It is characterized in that: described separation axle sleeve adopts nylon material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390069.0A CN102881478B (en) | 2012-10-15 | 2012-10-15 | Spring return type centrifugal clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390069.0A CN102881478B (en) | 2012-10-15 | 2012-10-15 | Spring return type centrifugal clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102881478A true CN102881478A (en) | 2013-01-16 |
| CN102881478B CN102881478B (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210390069.0A Active CN102881478B (en) | 2012-10-15 | 2012-10-15 | Spring return type centrifugal clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102881478B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108570A (en) * | 2013-08-17 | 2014-10-22 | 都江堰金祥装饰工程有限公司 | Automatic speed reducer of vehicle loading conveyor |
| CN105864327A (en) * | 2016-06-07 | 2016-08-17 | 四川大学 | Engaging type mechanical speed limiting mechanism |
| CN108266500A (en) * | 2017-01-04 | 2018-07-10 | 李激初 | Centre wheel two-way clutch control mechanism and its speed changer of application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60225315A (en) * | 1984-04-23 | 1985-11-09 | 三菱電機株式会社 | Spring actuator for breaker |
| CN201100341Y (en) * | 2007-10-22 | 2008-08-13 | 徐南汉 | General car machine clutch flying slice assembly |
| CN101937782A (en) * | 2010-09-09 | 2011-01-05 | 无锡市凯旋电机有限公司 | Directional circle type clutch |
| CN202301558U (en) * | 2011-11-11 | 2012-07-04 | 马中原 | Clutch and variable speed gear thereof |
| CN102678782A (en) * | 2012-05-10 | 2012-09-19 | 无锡江南奕帆电力传动科技股份有限公司 | Bidirectional clutch |
| CN202816717U (en) * | 2012-10-15 | 2013-03-20 | 无锡江南奕帆电力传动科技股份有限公司 | Spring return type centrifugal clutch |
-
2012
- 2012-10-15 CN CN201210390069.0A patent/CN102881478B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60225315A (en) * | 1984-04-23 | 1985-11-09 | 三菱電機株式会社 | Spring actuator for breaker |
| CN201100341Y (en) * | 2007-10-22 | 2008-08-13 | 徐南汉 | General car machine clutch flying slice assembly |
| CN101937782A (en) * | 2010-09-09 | 2011-01-05 | 无锡市凯旋电机有限公司 | Directional circle type clutch |
| CN202301558U (en) * | 2011-11-11 | 2012-07-04 | 马中原 | Clutch and variable speed gear thereof |
| CN102678782A (en) * | 2012-05-10 | 2012-09-19 | 无锡江南奕帆电力传动科技股份有限公司 | Bidirectional clutch |
| CN202816717U (en) * | 2012-10-15 | 2013-03-20 | 无锡江南奕帆电力传动科技股份有限公司 | Spring return type centrifugal clutch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108570A (en) * | 2013-08-17 | 2014-10-22 | 都江堰金祥装饰工程有限公司 | Automatic speed reducer of vehicle loading conveyor |
| CN105864327A (en) * | 2016-06-07 | 2016-08-17 | 四川大学 | Engaging type mechanical speed limiting mechanism |
| CN105864327B (en) * | 2016-06-07 | 2018-04-03 | 四川大学 | Engagement type mechanical speed limiting mechanism |
| CN108266500A (en) * | 2017-01-04 | 2018-07-10 | 李激初 | Centre wheel two-way clutch control mechanism and its speed changer of application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102881478B (en) | 2015-07-08 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Yuanji Inventor after: Chen Yifeng Inventor before: Chen Yuanji Inventor before: Qin Geping Inventor before: Chu Xiaomin Inventor before: Gong Jianfen Inventor before: Ge Xin |
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