CN207039369U - A kind of automatic speed limiting motor - Google Patents
A kind of automatic speed limiting motor Download PDFInfo
- Publication number
- CN207039369U CN207039369U CN201720723638.7U CN201720723638U CN207039369U CN 207039369 U CN207039369 U CN 207039369U CN 201720723638 U CN201720723638 U CN 201720723638U CN 207039369 U CN207039369 U CN 207039369U
- Authority
- CN
- China
- Prior art keywords
- casing
- output shaft
- guide pillar
- frictional disk
- terminal pad
- 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
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model provides a kind of automatic speed limiting motor, belongs to technical field of motors.It solves existing motor and is unable to the technical problems such as speed limit.A kind of automatic speed limiting motor, motor include casing and the output shaft being plugged in casing, and this speed limit motor also includes a terminal pad, the frictional disk one being fixedly connected with output shaft and the frictional disk two being fixedly connected with terminal pad；The sliding outside for being located at output shaft, sliding intracavitary is provided with some slide bars being fixedly connected with output shaft, sliding block is slidably connected on slide bar, some guide pillars are fixedly installed in terminal pad, it is provided with casing and is plugged in the one-to-one pilot hole of guide pillar, guide pillar in corresponding pilot hole, there is inclined stress surface one on sliding block, there is the stress surface two being adapted to stress surface one in terminal pad, the pressure spring for the pressure that regulation frictional disk two contacts with frictional disk one is provided between guide pillar and casing.The utility model has the advantages that simple and reliable for structure, automatic speed limiting.
Description
Technical field
The utility model belongs to technical field of motors, is related to a kind of automatic speed limiting motor.
Background technology
When the load of motor changes, because the output torque of motor does not change, cause rotating speed to change, turn
Speed improves suddenly, may result in situations such as output shaft is trembleed, output shaft connection member is damaged.
Utility model content
The purpose of this utility model is to be directed to above mentioned problem existing for existing technology, there is provided a kind of automatic speed limiting electricity
Machine, technical problem to be solved in the utility model are how the rotating speed of motor to be limited, and avoid motor from being damaged.
The purpose of this utility model can be realized by following technical proposal：A kind of automatic speed limiting motor, motor include
Casing and the output shaft being plugged in casing, it is characterised in that this speed limit motor also includes a terminal pad, fixed with output shaft
The frictional disk one of connection and the frictional disk two being fixedly connected with terminal pad；Set on the casing in the side wall vertical with output shaft
There is a cunning chamber, the cunning is located at the outside of the output shaft, and the sliding intracavitary, which is provided with some and fixed with the output shaft, to be connected
The slide bar connect, sliding block is slidably connected on the slide bar, some guide pillars are fixedly installed in the terminal pad, are set on the casing
It is equipped with and is plugged in the one-to-one pilot hole of the guide pillar, the guide pillar in corresponding pilot hole, has on the sliding block and incline
Oblique stress surface one, there is the stress surface two being adapted to the stress surface one, between the guide pillar and casing in the terminal pad
It is provided with the pressure spring for the pressure that regulation frictional disk two contacts with frictional disk one.
In a kind of above-mentioned automatic speed limiting motor, the outer end of the guide pillar is stretched out outside casing, spiral shell on the guide pillar
Line is connected with a locking nut, and the pressure spring is arranged between locking nut and casing.
Frictional disk can improve the inertia of output shaft, so that start and stop are more steady.
In a kind of above-mentioned automatic speed limiting motor, the guide pillar has six.
In a kind of above-mentioned automatic speed limiting motor, the sliding block is made up of ferrous material.
Principle is as follows：Sliding block is extruded terminal pad by centrifugal action during output shaft rotation, stress surface one and by
In the presence of power face two, the thrust of sliding block causes the frictional disk two that is fixedly connected with terminal pad close to frictional disk one, works as output
When the centrifugal force that rotating speed increases to sliding block causes the frictional disk two to be contacted with frictional disk one, output shaft is subtracted by frictional force effect two
Speed, so circulation, output rotating speed is kept not over setting value；By rotational lock nut, the compression of pressure spring is adjusted
Power, so as to the maximum (top) speed of regulation output shaft.
Compared with prior art, the utility model has advantages below：
The speed-limitation structure of this speed limit motor is pure mechanic structure, is capable of the rotating speed of full automatic limitation output shaft, its structure
Reliably, it is adjustable, it is easy and effective.
Brief description of the drawings
Fig. 1 is the overall structure diagram of this speed limit motor.
Fig. 2 is the enlarged drawing of local A in Fig. 1.
In figure, 1, casing；2nd, output shaft；31st, terminal pad；32nd, frictional disk one；33rd, frictional disk two；41st, sliding chamber；42nd, it is sliding
Bar；43rd, sliding block；44th, guide pillar；45th, pilot hole；51st, stress surface one；52nd, stress surface two；6th, pressure spring；7th, locking nut.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, this automatic speed limiting motor includes casing 1 and the output shaft 2 being plugged in casing 1,
This speed limit motor also includes a terminal pad 31, the frictional disk 1 being fixedly connected with output shaft 2 and fixed with terminal pad 31 to connect
The frictional disk 2 33 connect；A cunning chamber 41 is provided with casing 1 in the side wall vertical with output shaft 2, it is sliding positioned at the outer of output shaft 2
Side, slide in chamber 41 and be provided with some slide bars 42 being fixedly connected with output shaft 2, sliding block 43 is slidably connected on slide bar 42, even
Connect and some guide pillars 44 are fixedly installed on disk 31, pilot hole 45 one-to-one with guide pillar 44 is provided with casing 1, guide pillar 44 is inserted
Corresponding to being located in pilot hole 45, there is inclined stress surface 1 on sliding block 43, have and stress surface 1 in terminal pad 31
The stress surface 2 52 of adaptation, the pressure that regulation frictional disk 2 33 contacts with frictional disk 1 is provided between guide pillar 44 and casing 1
Pressure spring 6；The outer end of guide pillar 44 is stretched out outside casing 1, and a locking nut 7, pressure spring 6 are threaded with guide pillar 44
It is arranged between locking nut 7 and casing 1；Frictional disk can improve the inertia of output shaft 2, so that start and stop are more steady.
Further, guide pillar 44 has six；Sliding block 43 is made up of ferrous material.
Principle is as follows：Sliding block 43 is extruded terminal pad 31, in stress surface by centrifugal action in the rotation process of output shaft 2
1 and stress surface 2 52 in the presence of, the thrust of sliding block 43 causes the frictional disk 2 33 that is fixedly connected with terminal pad 31 to friction
Disk 1 is close, when the centrifugal force that the rotating speed of output shaft 2 increases to sliding block 43 causes frictional disk 2 33 to be contacted with frictional disk 1,
Output shaft 2 is slowed down by frictional force effect two, so circulation, keeps the rotating speed of output shaft 2 not over setting value；Pass through rotational lock
Nut 7, the thrust of pressure spring 6 is adjusted, so as to the maximum (top) speed of regulation output shaft 2.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although casing 1, output shaft 2, terminal pad 31, frictional disk 1, frictional disk 2 33, sliding chamber have more been used herein
41st, slide bar 42, sliding block 43, guide pillar 44, pilot hole 45, stress surface 1, stress surface 2 52, pressure spring 6, locking nut 7 etc.
Term, but it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing and explaining using these terms
Essence of the present utility model；Any additional limitation is construed as all to disagree with the utility model spirit.
Claims (4)
1. a kind of automatic speed limiting motor, motor includes casing (1) and the output shaft (2) being plugged in casing (1), and its feature exists
In this speed limit motor also includes a terminal pad (31), the frictional disk one (32) being fixedly connected with output shaft (2) and and terminal pad
(31) frictional disk two (33) being fixedly connected；On the casing (1) a cunning chamber is provided with the side wall vertical with output shaft (2)
(41), the sliding chamber (41) is located at the outside of the output shaft (2), and some and the output are provided with the sliding chamber (41)
The slide bar (42) that axle (2) is fixedly connected, slidably connects sliding block (43) on the slide bar (42), fixed on the terminal pad (31)
Be provided with some guide pillars (44), be provided with the casing (1) with the one-to-one pilot hole (45) of the guide pillar (44), it is described
Guide pillar (44) is plugged in corresponding pilot hole (45), has inclined stress surface one (51), the company on the sliding block (43)
Connecing has the stress surface two (52) being adapted to the stress surface one (51) on disk (31), between the guide pillar (44) and casing (1)
It is provided with the pressure spring (6) for the pressure that regulation frictional disk two (33) contacts with frictional disk one (32).
2. a kind of automatic speed limiting motor according to claim 1, it is characterised in that machine is stretched out in the outer end of the guide pillar (44)
Outside shell (1), a locking nut (7) is threaded with the guide pillar (44), the pressure spring (6) is arranged on locking nut
(7) between casing (1).
3. a kind of automatic speed limiting motor according to claim 2, it is characterised in that the guide pillar (44) has six.
4. a kind of automatic speed limiting motor according to claim 2, it is characterised in that the sliding block (43) is ferrous material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723638.7U CN207039369U (en) | 2017-06-20 | 2017-06-20 | A kind of automatic speed limiting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723638.7U CN207039369U (en) | 2017-06-20 | 2017-06-20 | A kind of automatic speed limiting motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207039369U true CN207039369U (en) | 2018-02-23 |
Family
ID=61468736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720723638.7U Expired - Fee Related CN207039369U (en) | 2017-06-20 | 2017-06-20 | A kind of automatic speed limiting motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207039369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742888A (en) * | 2023-08-14 | 2023-09-12 | 江苏华频电子科技有限公司 | Brushless motor with easy heat dissipation function |
-
2017
- 2017-06-20 CN CN201720723638.7U patent/CN207039369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742888A (en) * | 2023-08-14 | 2023-09-12 | 江苏华频电子科技有限公司 | Brushless motor with easy heat dissipation function |
| CN116742888B (en) * | 2023-08-14 | 2023-11-07 | 江苏华频电子科技有限公司 | Brushless motor with easy heat dissipation function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20190620 |