CN203492404U - Brake device of electric mower - Google Patents
Brake device of electric mower Download PDFInfo
- Publication number
- CN203492404U CN203492404U CN201320537555.0U CN201320537555U CN203492404U CN 203492404 U CN203492404 U CN 203492404U CN 201320537555 U CN201320537555 U CN 201320537555U CN 203492404 U CN203492404 U CN 203492404U
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- China
- Prior art keywords
- belt wheel
- centrifugal
- block
- large belt
- brake
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Abstract
The utility model relates to a brake device of an electric mower. The brake device is characterized by comprising a motor fixing seat and a big belt wheel, wherein the big belt wheel is located in a shaft hole of the fixing seat through a rotary shaft, and a brake drum which takes the shaft hole as a circle center is arranged at one side, facing to the big belt wheel, of the fixing seat; 2-6 centrifugal blocks are uniformly and axially located on the circumference, which takes the rotary shaft as a circle center, of one side, facing to the fixing seat, of the big belt wheel, and a torsional spring is arranged between the centrifugal blocks and the big belt wheel and always keeps the tendency that the brake drum is embraced by the centrifugal blocks. The brake device has the characteristics of ingenious concept, simple structure, convenience in manufacturing and mounting and good durability; particularly, due to the adoption of a centrifugal-block mechanical brake stopping scheme, the requirements on motor specifications are low, and the design of a control line is simplified.
Description
Technical field:
The utility model belongs to power-operated mower field, and particularly a kind of power-operated mower brake gear, is particularly useful for bel-drivenn power-operated mower brake stop.
Background technology:
Safety requires after mower power-off, motor must be in 3 seconds, stop operating, therefore mower test all can have brake diagnostic test this, designer, when design, also can take into account this point, generally there is following two schemes, one, by motor parameters, making has a reversing the current after motor power-off, allows motor stop operating in three seconds; Two,, by regulating belt tightness degree, make after motor power-off, lean on the frictional force of belt to make motor stop motion in three seconds.The former, have the design of reversing the current after motor power-off, can make motor cost increase also can affect motor service life, and motor winding easily burns; Use belt friction power to make in three seconds, to stop after motor power-off, although cost is low, belt serious wear, affects service life of mower complete machine.
Summary of the invention:
To be that design is a kind of be provided with centrifugal-block in large belt wheel one side to the purpose of this utility model, and after stall, centrifugal-block can be embraced the power-operated mower brake gear of brake rim on holder.
Technical solutions of the utility model are achieved in that a kind of power-operated mower brake gear, it is characterized in that comprising motor fixing seat and large belt wheel, large belt wheel is positioned at by rotating shaft on the axis hole of holder, and holder is towards large belt wheel one side, is provided with to take the brake rim that axis hole is the center of circle; Large belt wheel is towards holder one side, and on the circumference that the rotating shaft of take is the center of circle, evenly axle is positioned with two to six centrifugal-blocks, described centrifugal-block with between belt wheel, be provided with a torsion spring greatly, this torsion spring remains that centrifugal-block embraces the trend of brake rim.
Described large belt wheel, towards holder one side, forms the cylindricality seat of disjunctor, and described centrifugal-block one end is positioned on cylindricality seat by screw, and torsion spring set is located on this cylindricality seat.
The side surface that described centrifugal-block contacts with described brake rim, has the cambered surface identical with the brake rim face of cylinder.
Described large belt wheel is also provided with the stroke groove of restriction centrifugal-block, keeps centrifugal-block can only do centrifugal motion radially.
The utlity model has be skillfully constructed, simple in structure, manufacture feature easy for installation, that durability is good; Especially adopt the mechanical brake stop scheme of centrifugal-block, to the rating of electric machine require lowly, also simplified the design of control circuit.
Accompanying drawing explanation:
Below in conjunction with concrete legend, the utility model is described further:
Fig. 1 motor assembly schematic perspective view
Fig. 2 motor assembly perspective exploded view
Fig. 3 centrifugal-block and holder are related to schematic diagram
Wherein
1-motor, 2-small pulley 3-large belt wheel 31-rotating shaft
32-cylindricality seat, 33-stroke groove, 4-belt, 5-holder
51-axis hole, 52-brake rim, 6-centrifugal-block, 61-cambered surface
62-torsion spring, 63-eyelet, 7-screw
Embodiment:
With reference to Fig. 1, Fig. 2 and Fig. 3, power-operated mower motor assembly, includes motor 1, small pulley 2, large belt wheel 3, belt 4, and the holder 5 that is used for fixing motor 1 and the large belt wheel 3 of coordinate interrelation and small pulley 2; Power-operated mower brake gear, comprises motor fixing seat and large belt wheel, and large belt wheel 3 is positioned at by rotating shaft 31 on the axis hole 51 of holder 5, and holder 5 is towards large belt wheel one side, is provided with to take the brake rim 52 that axis hole 51 is the center of circle; Large belt wheel 3 is towards holder 5 one sides, on the circumference that the rotating shaft 31 of take is the center of circle, evenly axle is positioned with two to six centrifugal-blocks 6, between described centrifugal-block 6 and large belt wheel 3, be provided with a torsion spring 62, this torsion spring 62 remains that centrifugal-block 6 embraces the trend of brake rim 52, that is to say, when large belt wheel 3 stall, centrifugal force is less than the elastic force of torsion spring 62, and torsion spring 62 impels centrifugal-block 6 to embrace brake rim 52, realizes braking.
More particularly, at large belt wheel 3, towards holder 5 one sides, form the cylindricality seat 32 of disjunctor, one end of centrifugal-block 6 is positioned on cylindricality seat 32 by screw 7, torsion spring 62 is set on this cylindricality seat 32, and one end be located on large belt wheel 3, and the other end be located in centrifugal-block 6; Moreover centrifugal-block 6 and the side surface that described brake rim 52 contacts, have the cambered surface 61 identical with brake rim 52 faces of cylinder; And large belt wheel 3 is also provided with the stroke groove 33 of centrifugal-block 6, can keep centrifugal-block 6 can only do centrifugal motion radially.
In addition, centrifugal-block 6 one end are provided with eyelet 63, these eyelet 63 bores are large compared with cylindricality seat 32, by this eyelet 63, be movably set on cylindricality seat 32, and keep centrifugal-block 6 surfaces lower than cylindricality seat 32 end faces, utilize the screw 7 containing pad to be positioned on cylindricality seat 32, make the radially suitably displacement of centrifugal-block 6 integral body, under centrifugal action, can depart from completely and the contacting of brake rim 52, during operation, do not produce power consumption; And after large belt wheel 3 stall, can coincide again and embrace brake rim 52, the contact of maximum area, realizes the object of fast braking.
Claims (4)
1. a power-operated mower brake gear, is characterized in that comprising motor fixing seat and large belt wheel, and large belt wheel is positioned at by rotating shaft on the axis hole of holder, and holder is towards large belt wheel one side, is provided with to take the brake rim that axis hole is the center of circle; Large belt wheel is towards holder one side, and on the circumference that the rotating shaft of take is the center of circle, evenly axle is positioned with two to six centrifugal-blocks, described centrifugal-block with between belt wheel, be provided with a torsion spring greatly, this torsion spring remains that centrifugal-block embraces the trend of brake rim.
2. power-operated mower brake gear according to claim 1, is characterized in that large belt wheel, towards holder one side, forms the cylindricality seat of disjunctor, and described centrifugal-block one end is positioned on cylindricality seat by screw, and torsion spring set is located on this cylindricality seat.
3. power-operated mower brake gear according to claim 1 and 2, is characterized in that the side surface that centrifugal-block contacts with described brake rim, has the cambered surface identical with the brake rim face of cylinder.
4. power-operated mower brake gear according to claim 1 and 2, is characterized in that large belt wheel is also provided with the stroke groove of restriction centrifugal-block, keeps centrifugal-block can only do centrifugal motion radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320537555.0U CN203492404U (en) | 2013-08-30 | 2013-08-30 | Brake device of electric mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320537555.0U CN203492404U (en) | 2013-08-30 | 2013-08-30 | Brake device of electric mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203492404U true CN203492404U (en) | 2014-03-26 |
Family
ID=50323431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320537555.0U Expired - Fee Related CN203492404U (en) | 2013-08-30 | 2013-08-30 | Brake device of electric mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203492404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165262A (en) * | 2015-08-18 | 2015-12-23 | 常州格力博有限公司 | Garden tool power system with self-walking function |
| CN107265241A (en) * | 2017-07-25 | 2017-10-20 | 波士顿电梯（湖州）有限公司 | Elevator torsion spring stopping device |
-
2013
- 2013-08-30 CN CN201320537555.0U patent/CN203492404U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165262A (en) * | 2015-08-18 | 2015-12-23 | 常州格力博有限公司 | Garden tool power system with self-walking function |
| CN105165262B (en) * | 2015-08-18 | 2017-07-11 | 常州格力博有限公司 | Garden instrument dynamical system of the band from walking function |
| CN107265241A (en) * | 2017-07-25 | 2017-10-20 | 波士顿电梯（湖州）有限公司 | Elevator torsion spring stopping device |
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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: 20140326 Termination date: 20190830 |