CN202143020U - Brake apparatus of tubular motor - Google Patents
Brake apparatus of tubular motor Download PDFInfo
- Publication number
- CN202143020U CN202143020U CN201120264541U CN201120264541U CN202143020U CN 202143020 U CN202143020 U CN 202143020U CN 201120264541 U CN201120264541 U CN 201120264541U CN 201120264541 U CN201120264541 U CN 201120264541U CN 202143020 U CN202143020 U CN 202143020U
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- CN
- China
- Prior art keywords
- magnet
- magnetic
- output shaft
- power output
- ring body
- 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 - Lifetime
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The utility model provides a brake apparatus of a tubular motor, characterized by comprising a magnet with a magnetic pole connecting line perpendicular to a power output shaft of a motor, and a ring body coaxially arranged outside the magnet. The ring body is provided with magnetizers prepared by conductive materials. The magnetizers are in fixed connection with the power output shaft; the ring body is in fixed connection with a housing of the tubular motor; or the ring body can be replaced by a magnet ring with stamped magnetic poles to realize magnetizer effects. The brake apparatus has good braking effects, a simple structure and a wide scope of application.
Description
Technical field
The utility model relates to the brake gear of tube shaped electric machine.
Background technology
Tube shaped electric machine is as a kind of drive unit; Be widely used in fields such as roll-type window or door, projection screen; Out of service and rest on this position immediately in the moment of cutting off the electricity supply in order to ensure rolling screen door etc., the phenomenon that glides takes place because of deadweight in the rolling screen door that prevents to be pulled up etc., and it is inaccurate to eliminate the location of causing because of the effect of inertia of rotor high-speed after rotating; Brake gear need be set, the self-lock ability of raising rolling screen door etc. and the fail safe of use in tube shaped electric machine.
The at present general braking of adopting is that tubular motor reducer is done spontaneous braking, this spontaneous braking, and braking-force ratio is less, when rolling screen door etc. moves downward, has load can't brake with regard to being easy to glide slightly.If reach the speed reducing ratio that enough braking force then must increase decelerator; Under the certain situation of output speed; Rotating speed of motor also increases simultaneously; The rotating speed of tube shaped electric machine has so just increased the sound of tube shaped electric machine along with the increase sound of rotating speed is also just big more, and environment for use is caused bigger noise pollution.
The utility model content
The utility model technical problem to be solved provides a kind of brake gear of tube shaped electric machine, and good braking effect is simple in structure, applied widely.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of brake gear of tube shaped electric machine; It is characterized in that; Comprise magnet and the coaxial outer ring body of said magnet that is arranged on that the magnetic pole line is vertical with the power output shaft of motor; Said ring body is provided with the magnetic conductor that permeability magnetic material is processed, and said magnet and said power output shaft are fixed, and the shell of said ring body and said tube shaped electric machine is fixed.
Said magnetic conductor is evenly arranged, can be attracted by two magnetic poles of magnet simultaneously thus, reaches the maximization of the magnetic force utilization of magnet.
Preferably, said magnetic conductor is 4.
Alternately; Also can adopt following technical scheme: a kind of brake gear of tube shaped electric machine; It is characterized in that, comprise magnet and the coaxial outer magnet ring of said magnet that is arranged on that the magnetic pole line is vertical with the power output shaft of motor, go out a plurality of magnet ring magnetic poles on the said magnet ring; Said magnet and said power output shaft are fixed, and the shell of said magnet ring and said tube shaped electric machine is fixed.
Said magnet ring magnetic pole is evenly arranged, can be attracted by two magnetic poles of magnet simultaneously thus, reaches the maximization of the magnetic force utilization of magnet.
Preferably, said magnet ring magnetic pole is 4.
Compared with prior art, the advantage of the utility model is: utilize to be separately fixed at magnet and the ring body (or magnet ring) on power output shaft and the shell, utilize magnetic attraction between the two to make power output shaft and shell stop tightly, bigger braking force is provided; Brake gear is arranged on outside the motor, can need not the internal structure of motor to be made to change and directly use suitable bigger scope.
Description of drawings
Fig. 1 is the sketch map of the brake gear of the utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of brake gear of tube shaped electric machine comprises magnet 1 and ring body 2.Magnet 1 is fixing with the power output shaft 3 of motor, the radially formation N of magnet 1, two magnetic poles of S, and the line of these two magnetic poles is perpendicular to the rotor shaft direction of the power output shaft 3 of motor.
Ring body 2 is arranged on outside the magnet 1 coaxially, and with magnet 1 be positioned at same plane, ring body 1 can for, for example, plastic hoop.Evenly be equipped with the magnetic conductor 4 that permeability magnetic material is processed on the ring body 2, fix, can reduce cost effectively thus with the shell of tube shaped electric machine.Preferably, magnetic conductor 4 arranges that evenly more preferably, the number of magnetic conductor 4 is an even number, as 4, and is provided with symmetrically, can be attracted by two magnetic poles of magnet 1 simultaneously thus, reaches the maximization of the magnetic force utilization of magnet 1.
The principle and the course of work of the utility model are following:
When magnetic conductor 4 when the magnetic pole of magnet 1 is far away, magnetic conductor 4 under the action of a magnetic field to magnetic pole near, arrive magnetic conductor 4 the most nearby apart from the magnetic level of magnet 1.If the magnet 1 that is connected with power output shaft 3 is rotated further; Magnetic conductor 4 can be rotated further owing to the attraction that receives magnetic pole stops power output shaft 3; Up to arriving magnetic conductor 4 position nearest once more, power output shaft 3 can be stopped tightly under the situation of outage with motor housing apart from the magnetic pole of magnet 1.
Alternately, can not adopt ring body 2, and substitute ring body 2 with magnet ring, the shell of magnet ring and tube shaped electric machine is fixed.On magnet ring, evenly go out several magnet ring magnetic poles, preferably, the magnet ring magnetic pole arranges that evenly more preferably, the magnet ring magnetic pole is an even number, for example is 4, and arranges symmetrically.Because the magnet ring magnetic pole of only rushing out on the magnet ring can have magnetic attraction with magnet 1, other places on the magnet ring do not have magnetic attraction, and the magnet ring magnetic pole of then rushing out on the magnet ring is equivalent to above-mentioned magnetic conductor 4, plays same effect.
The above is merely the preferred implementation of the utility model; Should be pointed out that for those of ordinary skill in the art, do not breaking away under the principle prerequisite of the utility model; Can also make various deformation and improvement, this also should be regarded as the protection range of the utility model.
Claims (6)
1. the brake gear of a tube shaped electric machine; It is characterized in that; Comprise magnet (1) and the coaxial outer ring body (2) of said magnet (1) that is arranged on that the magnetic pole line is vertical with the power output shaft (3) of motor; Said ring body (2) is provided with the magnetic conductor (4) that permeability magnetic material is processed, and said magnet (1) is fixing with said power output shaft (3), and said ring body (2) is fixed with the shell of said tube shaped electric machine.
2. brake gear as claimed in claim 1 is characterized in that, said magnetic conductor (4) is evenly arranged.
3. brake gear as claimed in claim 2 is characterized in that, said magnetic conductor (4) is 4.
4. the brake gear of a tube shaped electric machine; It is characterized in that; Comprise magnet (1) and the coaxial outer magnet ring of said magnet (1) that is arranged on that the magnetic pole line is vertical with the power output shaft (3) of motor; Go out a plurality of magnet ring magnetic poles on the said magnet ring, said magnet (1) is fixing with said power output shaft (3), and the shell of said magnet ring and said tube shaped electric machine is fixed.
5. brake gear as claimed in claim 4 is characterized in that, said magnet ring magnetic pole is evenly arranged.
6. brake gear as claimed in claim 5 is characterized in that, said magnet ring magnetic pole is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120264541U CN202143020U (en) | 2011-07-21 | 2011-07-21 | Brake apparatus of tubular motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120264541U CN202143020U (en) | 2011-07-21 | 2011-07-21 | Brake apparatus of tubular motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202143020U true CN202143020U (en) | 2012-02-08 |
Family
ID=45554055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120264541U Expired - Lifetime CN202143020U (en) | 2011-07-21 | 2011-07-21 | Brake apparatus of tubular motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202143020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973031A (en) * | 2013-02-01 | 2014-08-06 | 深圳市兆威机电有限公司 | Permanent magnet self-lock device and motor |
| CN110007422A (en) * | 2019-04-19 | 2019-07-12 | 东莞市普密斯精密仪器有限公司 | A kind of continuous zoom lens with linear motor and self-locking function |
-
2011
- 2011-07-21 CN CN201120264541U patent/CN202143020U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973031A (en) * | 2013-02-01 | 2014-08-06 | 深圳市兆威机电有限公司 | Permanent magnet self-lock device and motor |
| CN110007422A (en) * | 2019-04-19 | 2019-07-12 | 东莞市普密斯精密仪器有限公司 | A kind of continuous zoom lens with linear motor and self-locking function |
| CN110007422B (en) * | 2019-04-19 | 2021-03-26 | 东莞市普密斯精密仪器有限公司 | Zoom lens with linear motor and self-locking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |
|
| CX01 | Expiry of patent term |