CN202773444U - Grass trimmer motor brake device - Google Patents
Grass trimmer motor brake device Download PDFInfo
- Publication number
- CN202773444U CN202773444U CN 201220313955 CN201220313955U CN202773444U CN 202773444 U CN202773444 U CN 202773444U CN 201220313955 CN201220313955 CN 201220313955 CN 201220313955 U CN201220313955 U CN 201220313955U CN 202773444 U CN202773444 U CN 202773444U
- Authority
- CN
- China
- Prior art keywords
- brake
- weld assembly
- rotor
- stator
- rubber friction
- 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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Abstract
The utility model discloses a grass trimmer motor brake device. The grass trimmer motor brake device comprises a back end cover, a rubber friction lining, a brake weld assembly, a spring, a rotor, a stator and a suction ring. The rubber friction lining is bonded on the back end cover and connected with the brake weld assembly, the brake weld assembly is connected with the stator, the spring is arranged between the brake weld assembly and the stator, the rotor is arranged in the stator, and the suction ring is arranged on the end portion of the rotor. According to the grass trimmer motor brake device, due to the fact that the suction ring is arranged on the end portion of the motor rotor and pressed together with a rotor aluminum ring, electromagnetic force is enhanced, and the brake weld assembly can be sucked and bounced off. The grass trimmer motor brake device is simple in structure, economical and practical.
Description
Technical field
The utility model relates to a kind of mower device, is specifically related to a kind of mower motor brake gear.
Background technology
Mower motor requires at motor internal a brake gear to be installed, load onto blade after, when High Rotation Speed reached rated speed 2850r/min, outage must be stopped with interior at 3s, and be required 5000 cycles of continuous circulation suddenly, must not have any unusual.There are two defectives in existing brake gear: the first, and it is overtime to brake; The second, the brake life-span does not reach 5000 times, just occurs greatly the brake gear failure phenomenon in the time of 2500 times.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of mower motor brake gear, by motor internal is improved, so that motor just can stop in the short time.
Technical scheme: for achieving the above object, a kind of mower motor brake gear of the present utility model, comprise rear end cap, rubber friction disc, brake weld assembly, spring, rotor, stator and suction ring, described rear end cap is connected with rubber friction disc, rubber friction disc is connected with the brake weld assembly, and described brake weld assembly is connected with stator, is provided with spring between brake weld assembly and the stator, be provided with rotor in the stator, the end of described rotor is provided with inhales ring.
Described rubber friction disc is bonded on the rear end cap.
Described rubber friction disc is 4.
Described brake weld assembly is provided with 4 contact-making surfaces, is evenly distributed on the brake weld assembly end face.
Beneficial effect: a kind of mower motor brake gear of the present utility model, be provided with one by the end at rotor and inhale ring, inhale ring and force together with rotor aluminium ring, increased electromagnetic force, so that the brake weld assembly is inhaled to such an extent that firmly also play to such an extent that open; The brake weld assembly is designed to 4 contact-making surfaces by 3 original contact-making surfaces, the excessive disadvantage of impulsive force when having solved brake.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of mower motor brake gear of the present utility model, comprise rear end cap 1, rubber friction disc 2, brake weld assembly 3, spring 4, rotor 5, stator 6 and inhale ring 7, rubber friction disc 2 is bonded on the rear end cap 1, rubber friction disc 2 is connected with brake weld assembly 3, and brake weld assembly 3 is connected with stator 6, is provided with spring 4 between brake weld assembly 3 and the stator 6, be provided with rotor 5 in the stator 6, the end of rotor 5 is provided with inhales ring 7.
When reality was used, rubber friction disc 2 was 4, and brake weld assembly 3 is provided with 4 contact-making surfaces, was evenly distributed on brake weld assembly 3 end faces.
In the present embodiment, at first 4 high temperature resistant 504 glue of rubber friction disc 2 usefulness and rear end cap 1 are cemented, when not having plugged, brake weld assembly 3 contacts with 4 rubber friction discs 2 under the active force of spring 4, when energising, the suction ring 7 of rotor 5 ends produces magnetic field at once, brake weld assembly 3 is under the effect in magnetic field, overcome the pressure of spring 4, move to rotor 5 ends, and be adsorbed on tightly rotor 5 ends, brake weld assembly 3 separates with 4 rubber friction discs 2, frictional force is zero, and motor rapidly starting reaches rated speed.When cutting off the electricity supply, the magnetic field that ring 7 is inhaled in rotor 5 ends disappears, brake weld assembly 3 moves to rubber friction disc 2 directions rapidly under the effect of the elastic force F1 of spring 4, and generation frictional force, this moment is because the inertia of rotor 5 self, continue rotation, this moment, rotor 5 ends contacted between the inclined-plane with four that brake between the weld assembly 3, produce a larger deboost F2, frictional force F=μ (F1+F2) is at the larger thrust F2 of the constant situation generation of lower moment of the coefficient of sliding friction like this, effectively increased frictional force F, rotor 5 band knife sections are just stopped in 2s.
The above only is preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. mower motor brake gear, it is characterized in that: comprise rear end cap (1), rubber friction disc (2), brake weld assembly (3), spring (4), rotor (5), stator (6) and suction ring (7), described rear end cap (1) is connected with rubber friction disc (2), rubber friction disc (2) is connected with brake weld assembly (3), described brake weld assembly (3) is connected with stator (6), be provided with spring (4) between brake weld assembly (3) and the stator (6), be provided with rotor (5) in the stator (6), the end of described rotor (5) is provided with inhales ring (7).
2. mower motor brake gear according to claim 1, it is characterized in that: described rubber friction disc (2) is bonded on the rear end cap (1).
3. mower motor brake gear according to claim 1 and 2, it is characterized in that: described rubber friction disc (2) is 4.
4. mower motor brake gear according to claim 1, it is characterized in that: described brake weld assembly (3) is provided with 4 contact-making surfaces, is evenly distributed on brake weld assembly (3) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313955 CN202773444U (en) | 2012-06-29 | 2012-06-29 | Grass trimmer motor brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313955 CN202773444U (en) | 2012-06-29 | 2012-06-29 | Grass trimmer motor brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202773444U true CN202773444U (en) | 2013-03-13 |
Family
ID=47800823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313955 Expired - Fee Related CN202773444U (en) | 2012-06-29 | 2012-06-29 | Grass trimmer motor brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202773444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871116A (en) * | 2016-06-06 | 2016-08-17 | 苏州金莱克精密机械有限公司 | Linkage brake mechanism for motor |
| CN110972722A (en) * | 2019-10-25 | 2020-04-10 | 浙江亚特电器有限公司 | Garden tool |
-
2012
- 2012-06-29 CN CN 201220313955 patent/CN202773444U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871116A (en) * | 2016-06-06 | 2016-08-17 | 苏州金莱克精密机械有限公司 | Linkage brake mechanism for motor |
| CN105871116B (en) * | 2016-06-06 | 2019-02-19 | 苏州金莱克精密机械有限公司 | The linkage braking mechanism of motor |
| CN110972722A (en) * | 2019-10-25 | 2020-04-10 | 浙江亚特电器有限公司 | Garden tool |
| CN110972722B (en) * | 2019-10-25 | 2021-10-26 | 浙江亚特电器有限公司 | Garden tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130629 |