CN209184402U - A kind of motor with braking mechanism - Google Patents
A kind of motor with braking mechanism Download PDFInfo
- Publication number
- CN209184402U CN209184402U CN201920140803.5U CN201920140803U CN209184402U CN 209184402 U CN209184402 U CN 209184402U CN 201920140803 U CN201920140803 U CN 201920140803U CN 209184402 U CN209184402 U CN 209184402U
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- China
- Prior art keywords
- motor
- braking mechanism
- brake disc
- friction piece
- rotating body
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Abstract
The utility model discloses a kind of motors with braking mechanism, brake disc is connected by screw on the bracket of motor, braking mechanism is fixed in the rotation axis of motor, braking mechanism is arranged on brake disc top, stop nut is fixed on the end of motor rotation axis, braking mechanism includes arcuate friction piece, rotating body, arcuate friction piece passes through screw, spring shim is fixed on the bottom surface of rotating body, rotating body is the integral structure being made of four rotating vanes, the arc curve of arcuate friction piece is semi-parabolic shape, the utility model is by the way of the brake of motor driving shaft, brake function is realized by the frictional force between arcuate friction piece and brake disc, single unit system structure is simple, cost of manufacture is cheap, it is safe and reliable to operation, greatly improve the performance of grass trimmer, with very strong versatility.
Description
Technical field
It is specifically a kind of with braking mechanism the utility model relates to the motor technology field of power-operated mower
Motor.
Background technique
Grass trimmer realizes deceleration generally by level-one V belt translation.Power-operated mower level-one tape handler mainly includes
The motor of driving, the belt that one end is connected with the output shaft of motor, the other end with belt are fixed on the support and be used for support
The connected and driving wheel accordingly rotated and the rotating blade being fixed in driving wheel shaft.Under normal circumstances, in mowing machine operation
When needing to shut down on the way, even if user cuts off the power, rotating blade is because the effect of inertia force can still run at high speed a period of time, nothing
Method meets the requirement of safety standard, even will cause personal injury when serious.
According to the requirement of security technique standard, the cutter device of grass trimmer need to stop turning in the 3s after cutting off the power
It is dynamic, therefore special brake gear need to be installed, brake gear is generally divided into mechanical brake and electromagnetic brake.Wherein, conventional
Mechanical brake structure need to be generally mounted on driven pulley, and structure is complex；Then there is unstable, cost of braking in electromagnetic brake
The disadvantages of higher.
Therefore, to overcome the shortcomings of above-mentioned technology and simple, reliable for operation, low-cost one kind of designing a structure
Motor with braking mechanism, exactly inventor problem to be solved.
Utility model content
In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of motor with braking mechanism, knots
Structure is simple, reliable for operation, low in cost, greatly improves the performance of grass trimmer.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of motor with braking mechanism,
Including including motor, brake disc, braking mechanism, stop nut, the brake disc is connected by screw on the bracket of motor,
Braking mechanism is fixed in the rotation axis of the motor, on brake disc top, the stop nut is solid for the braking mechanism setting
It is scheduled on the end of motor rotation axis, the braking mechanism includes arcuate friction piece, rotating body, and the arcuate friction piece passes through spiral shell
Nail, spring shim are fixed on the bottom surface of rotating body, and the rotating body is the integral structure being made of rotating vane, the arc
The arc curve of shape friction plate is semi-parabolic shape.
Further, the arcuate friction piece is made of elastic steel sheet.
Further, the rotating body is made of four rotating vanes.
Further, the motor is single phase series motivated motor.
Further, the brake disc, rotating body are high-intensitive, high-wearing feature Steel material.
Further, the rotating body is internally provided with thermal insulation layer, noise reduction layer.
The beneficial effects of the utility model are:
1, the utility model passes through the friction between arcuate friction piece and brake disc by the way of the brake of motor driving shaft
Power realizes brake function, and single unit system structure is simple, and cost of manufacture is cheap, safe and reliable to operation, greatly improves the property of grass trimmer
Can, there is very strong versatility.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Description of symbols: 1- stop nut；2- rotating vane；3- arcuate friction piece；4- brake disc；5- motor；6- spiral shell
Nail；7- rotation axis.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments, it should be appreciated that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms also fall within application
The appended claims limited range.
It is the utility model structure diagram referring to Fig. 1, a kind of motor with braking mechanism of the structure comprising have electricity
Machine 5, brake disc 4, braking mechanism, stop nut 1, brake disc 4 are connected on the bracket of motor 5 by screw 6, and motor 5 turns
Braking mechanism is fixed on moving axis 7, braking mechanism is arranged on 4 top of brake disc, and stop nut 1 is fixed on 5 rotation axis 7 of motor
End, braking mechanism include arcuate friction piece 3, rotating body, and arcuate friction piece 3 is fixed on rotation by screw, spring shim
The bottom surface of ontology, rotating body are the integral structure being made of four rotating vanes 2, and the arc curve of arcuate friction piece 3 is half
It is parabola shaped.The brake disc 4, rotating body are high-intensitive, high-wearing feature Steel material, are unlikely to deform, prolong the service life.
The rotating body is internally provided with thermal insulation layer, noise reduction layer, while increasing service life, moreover it is possible to reduce production when motor 5 works
Raw noise.
Arcuate friction piece 3 is made of elastic steel sheet, and motor 5 is single phase series motivated motor 5, when mower motor 5 is in static
When state, by stop nut 1 and 3 natural resiliency of arcuate friction piece, there are pretightning forces between arcuate friction piece 3 and brake disc 4.
When artificially stirring 5 rotor of motor, the frictional force as caused by pretightning force is overcome, it appears especially painstaking.When motor 5 is powered
After moving and reaching certain revolving speed, each rotating vane 2 can generate very big centrifugal force together with arcuate friction piece 3.Work as centrifugation
When power overcomes stiction and self gravity between arcuate friction piece 3 and brake disc 4 enough, brake block will be in vertical direction
It is detached from brake disc 4, frictional force is no longer done work at this time.
When mower motor 5 is cut off the power, with the reduction of 5 revolving speed of motor, the component of centrifugal force is less than pretightning force, this
When frictional force can generate huge resistance, prevent 5 rotor of motor from remaining in operation due to what inertia force generated.Frictional force overcomes inertia
Power acting, generates a large amount of thermal energy, so that 5 revolving speed of motor is rapidly reduced to 0, at this time between brake disc 4 and arcuate friction piece 3
Frictional force becomes brake force.Due to the presence of brake force, the time of mower motor stopping brake is greatly reduced.
Claims (6)
1. a kind of motor with braking mechanism, it is characterised in that: it includes motor, brake disc, braking mechanism, stop nut,
The brake disc is connected by screw on the bracket of motor, and braking mechanism, the brake are fixed in the rotation axis of the motor
Mechanism of car is arranged on brake disc top, and the stop nut is fixed on the end of motor rotation axis, and the braking mechanism includes arc
Shape friction plate, rotating body, the arcuate friction piece are fixed on the bottom surface of rotating body, the rotation by screw, spring shim
Turning ontology is the integral structure being made of rotating vane, and the arc curve of the arcuate friction piece is semi-parabolic shape.
2. a kind of motor with braking mechanism according to claim 1, it is characterised in that: the arcuate friction piece is bullet
Property steel disc is made.
3. a kind of motor with braking mechanism according to claim 1, it is characterised in that: the rotating body is by four
Rotating vane composition.
4. a kind of motor with braking mechanism according to claim 1, it is characterised in that: the motor is single-phase series excitation
Motor.
5. a kind of motor with braking mechanism according to claim 1, it is characterised in that: the brake disc, rotation are originally
Body is high-intensitive, high-wearing feature Steel material.
6. a kind of motor with braking mechanism according to claim 1, it is characterised in that: set inside the rotating body
It is equipped with thermal insulation layer, noise reduction layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920140803.5U CN209184402U (en) | 2019-01-26 | 2019-01-26 | A kind of motor with braking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920140803.5U CN209184402U (en) | 2019-01-26 | 2019-01-26 | A kind of motor with braking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209184402U true CN209184402U (en) | 2019-07-30 |
Family
ID=67379019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920140803.5U Active CN209184402U (en) | 2019-01-26 | 2019-01-26 | A kind of motor with braking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209184402U (en) |
-
2019
- 2019-01-26 CN CN201920140803.5U patent/CN209184402U/en active Active
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