CN209449257U - A kind of mower brake and grass trimmer - Google Patents
A kind of mower brake and grass trimmer Download PDFInfo
- Publication number
- CN209449257U CN209449257U CN201821661958.5U CN201821661958U CN209449257U CN 209449257 U CN209449257 U CN 209449257U CN 201821661958 U CN201821661958 U CN 201821661958U CN 209449257 U CN209449257 U CN 209449257U
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- gear wheel
- brake
- output shaft
- blade
- impeller
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Abstract
The utility model discloses a kind of mower brakes, including reduction gearbox, reduction gearbox includes pinion gear and the gear wheel that is connected by output shaft with the blade of grass trimmer, gear wheel and pinion gear engagement, brake assemblies are provided on reduction gearbox, brake assemblies include brake member, the elastic component that pushes gear wheel and brake member to touch and push gear wheel and brake member mutually from impeller, elastic component and impeller are located at the two sides of gear wheel, impeller is connected on output shaft and by the driving of gear wheel, impeller and output shaft interlock, the utility model passes through the brake assemblies being arranged in reduction gearbox to gear wheel, output shaft and blade play the role of brake, so that after driving machine is shut down, blade can be quickly to stop operating in the short time, prevent blade from causing personal injury under the action of inertia, the utility model additionally provides one kind Grass trimmer is connected with above-mentioned mower brake including casing, blade and the driving machine for driving blade rotation between driving machine and blade.
Description
Technical field
The utility model belongs to garden instrument field, and in particular to a kind of mower brake.
Background technique
Currently, grass trimmer is a kind of common garden instrument, uses driving machine as driving machine, pass through belt or gear drive
The output shaft for being equipped with blade is driven to carry out operation, if needing to shut down on the way in operation, operator first has to cut off the power, electricity
After the cutting of source, since under the action of inertia, output shaft and blade still can run at high speed a period of time, so not being able to satisfy peace
Full property requirement, even will cause personal injury when serious.
Utility model content
What the blade that technical problem to be solved in the utility model is just to provide a kind of pair of grass trimmer was quickly stalled
Mower brake.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of mower brake, including
Reduction gearbox, reduction gearbox include the canine tooth for being driven the pinion gear of motivation driving and being connected by output shaft with the blade of grass trimmer
Wheel, gear wheel and pinion gear engage, and brake assemblies are provided on reduction gearbox, and brake assemblies include the brake member of fixed setting, push away
Elastic component that dynamic gear wheel and brake member touch and push gear wheel and brake member mutually from impeller, elastic component and impeller
The two sides of gear wheel are located at, impeller is connected on output shaft and is interlocked by the driving of gear wheel, impeller and output shaft.
Further, the locating part for driving impeller rotation, the folder of locating part and former are provided on the former of gear wheel
The guiding surface for locating part sliding is provided at angle.
Further, jack is provided on output shaft, impeller is catch bar, catch bar and jack grafting.
Further, jack is stretched out at the both ends of catch bar, and locating part includes centrosymmetric along the central axes of gear wheel
First locating part and the second locating part, guiding surface include along centrosymmetric first guiding surface in the central axes of gear wheel and
Two guiding surfaces.
Further, reduction gearbox further includes cabinet, is provided in cabinet and first bearing, first bearing are set positioned at gear wheel
The side of flexible part, is provided with gasket between first bearing and elastic component.
Further, elastic component is the spring being socketed on output shaft, and spring one end offsets with gear wheel, the other end and pad
Piece offsets.
Further, second bearing is additionally provided in cabinet, second bearing is socketed in one of output shaft far from first bearing
It holds, the stop collar for preventing second bearing mobile is provided on output shaft.
Further, brake member is brake ring, and the brake slot matched with brake ring is provided on gear wheel.
Further, driving machine is engine or motor.
Compared with prior art, the utility model has the beneficial effects that
1, when driving machine is in shutdown status, gear wheel is in contact with brake member；When needing to boot up operation, beat
Driving machine is opened, the drive shaft of driving machine drives the pinion rotation of socket on the driving shaft, and pinion gear drive engages big
Gear rotation, active force when gear wheel initial rotation by impeller are moved to elastic component side so that gear wheel with
Brake member separates, and prevents influence of the gear wheel in rotation by brake member, then gear wheel is driven by impeller and exported
Axis rotation, output shaft band cutting blade, which rotates, mows, at this time because pinion gear persistently drives gear wheel uniform rotation, institute
With gear wheel be in separated with brake member and squeeze elastic component state it is constant；When needing to carry out shutdown operation, driving is closed
The output shaft of machine, driving machine slowly stops operating, and cutter and output shaft continue to rotate under the action of inertia at this time, but because
Gear wheel uniform rotation is no longer persistently driven for pinion gear, so gear wheel connects under the elastic force effect of elastic component with brake member
Touching, the huge frictional force between brake member and gear wheel play the role of brake to gear wheel, output shaft and blade, so that driving
After machine is shut down, blade can prevent blade from causing personal injury under the action of inertia quickly to stop operating in the short time.Elasticity
Part can effectively be buffered in the inertia force generated when the opening and closing of driving machine by speed difference, reduce abrasion, reduce noise
And vibration.
2, when being switched on, gear wheel first rotates relative to output shaft under the drive of pinion gear, until impeller edge is led
It slides into inclined-plane and offsets with locating part, so that gear wheel is mobile to the direction separated with brake member and makes impeller and limit
Then part contact carries out the transmission between gear wheel and output shaft by the locating part to offset and impeller, when shutdown, impeller
It is slided again along guiding surface to the direction opposite with when booting, so that gear wheel is mobile to the direction contacted with brake member.
3, jack is provided on output shaft, impeller is catch bar, catch bar and jack grafting, and the both ends of catch bar are stretched
Jack out, so that be dismountable connection type between catch bar and output shaft, easy to produce and maintenance.
4, when gear wheel drives catch bar rotation, the first locating part and the second locating part respectively with the both ends phase of catch bar
It supports, so that being more uniformly stressed for catch bar, prevents catch bar to be broken because of unbalance stress, extend catch bar uses the longevity
Life.
5, when output shaft rotates, elastic component and gasket rotate with output shaft, and gasket is to elastic component
Support is played the role of in one end, while the first bearing between cabinet and gasket is arranged in and effectively prevent gasket in rotation and case
It rubs between body, extends the service life of gasket.
6, output shaft plays the role of limit to spring, prevents spring from occurring mobile and being detached from gasket.
7, second bearing forms output shaft and limits, and prevents output shaft from shaking while rotation and leads to grass trimmer
Blade is unstable, while effectivelying prevent wearing between the surface of output shaft and cabinet, extends the use of cabinet and output shaft
Service life.
8, by setting brake ring for brake member, the brake slot matched with brake ring is set on gear wheel, is increased
Rubbing surface between brake member and gear wheel, so that gear wheel is uniformly rubbed, so that braking effect is more preferable.
Compared with prior art, the utility model passes through the brake assemblies being arranged in reduction gearbox to gear wheel, output shaft
Play the role of brake with blade, so that blade can prevent blade from existing after driving machine is shut down quickly to stop operating in the short time
Personal injury is caused under the action of inertia.
The utility model additionally provides a kind of grass trimmer, including casing, blade and the driving machine for driving blade rotation, driving
Above-mentioned mower brake is connected between machine and blade.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and detailed description:
Fig. 1 is the schematic diagram of grass trimmer；
Fig. 2 is the schematic diagram of mower brake；
Fig. 3 is the schematic diagram for removing the mower brake of lower cover；
Fig. 4 is the explosive view of mower brake；
Schematic diagram when Fig. 5 is the starting of mower brake；
Schematic diagram when Fig. 6 is the shutdown of mower brake；
Fig. 7 is the schematic diagram of gear wheel.
Wherein: 1, casing；2, blade；3, driving machine；31, drive shaft；4, reduction gearbox；41, pinion gear；42, gear wheel；
421, former；422, locating part；4221, the first locating part；4222, the second locating part；423, guiding surface；4231, it first leads
To inclined-plane；4232, the second guiding surface；424, brake slot；43, upper cover；44, lower cover；51, brake member；52, elastic component；53, it pushes away
Moving part；6, output shaft；61, jack；62, stop collar；71, first bearing；72, gasket；73, second bearing.
Specific embodiment
The embodiment of a kind of mower brake of the utility model and grass trimmer is done furtherly referring to Figure 1 to Figure 7
It is bright.
Embodiment one:
A kind of mower brake, including reduction gearbox 4, reduction gearbox 4 include be driven motivation 3 driving pinion gear 41 and
The drive shaft 31 of the gear wheel 42 being connected by output shaft 6 with the blade 2 of grass trimmer, driving machine 3 is connected with pinion gear 41, canine tooth
Wheel 42 and pinion gear 41 engage, and brake assemblies are provided on reduction gearbox 4, and brake assemblies include the brake member 51 of fixed setting, push away
Elastic component 52 that dynamic gear wheel 42 and brake member 51 touch and push gear wheel 42 and 51 phase of brake member from impeller 53, bullet
Property part 52 and impeller 53 are located at the two sides of gear wheel 42, and impeller 53 is connected on output shaft 6 and by gear wheel 42
Driving, impeller 53 and output shaft 6 interlock.
When driving machine 3 is in shutdown status, gear wheel 42 is in contact with brake member 51；
When needing to boot up operation, driving machine 3 is opened, the drive of drive shaft 31 of driving machine 3 is socketed in drive shaft 31
On pinion gear 41 rotate, pinion gear 41 drives the gear wheel 42 that engages to rotate, and when 42 initial rotation of gear wheel is pushed away
The active force of moving part 53 is moved to 52 side of elastic component, so that gear wheel 42 and brake member 51 separate, prevents gear wheel
42 are influenced in rotation by brake member 51, and then gear wheel 42 drives output shaft 6 to rotate by impeller 53, output shaft 6
Band cutting blade 2, which rotates, mows, at this time because pinion gear 41 persistently drives 42 uniform rotation of gear wheel, gear wheel
42 in separated with brake member 51 and squeeze elastic component 52 state it is constant；
When needing to carry out shutdown operation, driving machine 3 is closed, the output shaft 6 of driving machine 3 slowly stops operating, cuts at this time
Knife and output shaft 6 continue to rotate under the action of inertia, but because pinion gear 41 no longer persistently drives gear wheel 42 at the uniform velocity
Rotation, so gear wheel 42 is in contact under the elastic force effect of elastic component 52 with brake member 51, brake member 51 and gear wheel 42 it
Between huge frictional force play the role of brake to gear wheel 42, output shaft 6 and blade 2 so that driving machine 3 shut down after, blade 2
It can prevent blade 2 from causing personal injury under the action of inertia quickly to stop operating in the short time.
Because between pinion gear 41 and gear wheel 42 when elastic component 52 can effectively be buffered in the opening and closing of driving machine 3
Speed difference and the inertia force generated reduce the abrasion between pinion gear 41 and gear wheel 42, reduce noise and vibration.
In the present embodiment, the locating part 422 for driving impeller 53 to rotate, limit are provided on the former 421 of gear wheel 42
The angle of part 422 and former 421 is provided with the guiding surface 423 slided for locating part 422, and when booting, gear wheel 42 is small
It first rotates relative to output shaft 6 under the drive of gear 41, until impeller 53 slides into and locating part along guiding surface 423
422 offset, so that gear wheel 42 is to the direction movement isolated with brake member 51 and impeller 53 and locating part 422 are contacted,
Then the transmission between gear wheel 42 and output shaft 6 is carried out by the locating part 422 to offset and impeller 53, when shutdown, pushed
Part 53 is slided along guiding surface 423 to opposite direction when booting again, so that gear wheel 42 is to the side contacted with brake member 51
To movement.
In the present embodiment, it being provided with jack 61 on output shaft 6, impeller 53 is catch bar, catch bar and 61 grafting of jack,
Jack 61 is stretched out at the both ends of catch bar so that be dismountable connection type between catch bar and output shaft 6, it is easy to produce and
Maintenance, locating part 422 include along centrosymmetric first locating part 4221 in the central axes of gear wheel 42 and the second locating part 4222,
Guiding surface 423 includes along centrosymmetric first guiding surface 4231 in the central axes of gear wheel 42 and the second guiding surface
4232, when gear wheel 42 drives catch bar rotation, the first locating part 4221 and the second locating part 4222 respectively with catch bar
Both ends offset, so that being more uniformly stressed for catch bar, prevents catch bar to be broken because of unbalance stress, extend catch bar
Service life.
In the present embodiment, reduction gearbox 4 further includes cabinet, is provided in cabinet and is located at first bearing 71, first bearing 71
Gear wheel 42 is equipped with the side of elastic component 52, and gasket 72 is provided between first bearing 71 and elastic component 52, when output shaft 6 occurs
When rotation, elastic component 52 and gasket 72 rotate with output shaft 6, and gasket 72 plays support to one end of elastic component 52
Effect, while the first bearing 71 being arranged between cabinet and gasket 72 effectively prevent gasket 72 to send out between cabinet in rotation
Raw friction, extends the service life of gasket 72, elastic component 52 is the spring being socketed on output shaft 6, spring one end and gear wheel
42 offset, and the other end offsets with gasket 72, and output shaft 6 plays the role of limit to spring, prevent spring from occurring mobile and taking off
From gasket 72.
Second bearing 73 is additionally provided in the present embodiment, in cabinet, second bearing 73 is socketed in output shaft 6 far from first axle
71 one end is held, the stop collar 62 for preventing second bearing 73 mobile is provided on output shaft 6, second bearing 73 is to 6 shape of output shaft
It at limit, prevents output shaft 6 from shaking while rotation and causes mower blade 2 unstable, while effectivelying prevent defeated
It is worn between the surface and cabinet of shaft 6, extends the service life of cabinet and output shaft 6.
Cabinet includes upper cover 43 and the lower cover 44 with the cooperation of upper cover 43, and first bearing 71 is arranged in upper cover in the present embodiment
43, the setting of second bearing 73 is in lower cover 44, but be not limited to that this kind of embodiment, first bearing 71 can also be arranged in lower cover
44, second bearing 73 is arranged in upper cover 43.
The brake matched with brake ring is arranged by setting brake ring for brake member 51 in the present embodiment on gear wheel 42
Recessing 424 increases the rubbing surface between brake member 51 and gear wheel 42, so that gear wheel 42 is uniformly rubbed, so that brake effect
Fruit is more preferable.
In the present embodiment, reduction gearbox 4 is fixed on casing 1, and brake member 51 can be fixed on reduction gearbox 4 or stretch out
Reduction gearbox 4 is fixed on the casing 1 of grass trimmer.
Driving machine 3 in the present embodiment can may be motor for engine, but be not limited to engine and motor,
All structures that can be rotated with driving pinion 41 can be used as driving machine 3.
Embodiment two:
A kind of grass trimmer, including the driving machine 3 that casing 1, the blade 2 mowed and driving blade 2 rotate, driving machine 3 and knife
The mower brake being connected between piece 2 in embodiment one, so that grass trimmer structure is simple, it is more stable, and driving
After machine 3 is shut down, blade 2 can prevent blade 2 from causing personal injury under the action of inertia quickly to stop operating in the short time.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of mower brake, including reduction gearbox, the reduction gearbox includes being driven the pinion gear of motivation driving and leading to
Cross the gear wheel that output shaft is connected with the blade of grass trimmer, gear wheel and pinion gear engagement, it is characterised in that: on the reduction gearbox
Be provided with brake assemblies, brake assemblies include the brake member of fixed setting, the elastic component that pushes gear wheel and brake member to touch with
And push gear wheel and brake member mutually from impeller, the elastic component and impeller are located at the two sides of gear wheel, push
Part is connected on output shaft and is interlocked by the driving of gear wheel, the impeller and output shaft.
2. a kind of mower brake according to claim 1, it is characterised in that: be arranged on the former of the gear wheel
The angle of the locating part for having drive impeller to rotate, locating part and former is provided with the guiding surface for locating part sliding.
3. a kind of mower brake according to claim 2, it is characterised in that: be provided on the output shaft slotting
Hole, the impeller are catch bar, the catch bar and jack grafting.
4. a kind of mower brake according to claim 3, it is characterised in that: the both ends of the catch bar are stretched out
Jack, the locating part include along centrosymmetric first locating part in the central axes of gear wheel and the second locating part, the guiding
Inclined-plane includes along centrosymmetric first guiding surface in the central axes of gear wheel and the second guiding surface.
5. a kind of mower brake according to claim 1, it is characterised in that: the reduction gearbox further includes cabinet,
Be provided in the cabinet and first bearing, first bearing is located at the side that gear wheel is equipped with elastic component, the first bearing and
Gasket is provided between elastic component.
6. a kind of mower brake according to claim 5, it is characterised in that: the elastic component is to be socketed in output
Spring on axis, the spring one end offset with gear wheel, and the other end offsets with gasket.
7. a kind of mower brake according to claim 5 or 6, it is characterised in that: be additionally provided in the cabinet
Second bearing, second bearing are socketed in the one end of output shaft far from first bearing, and being provided on the output shaft prevents the second axis
Hold mobile stop collar.
8. a kind of mower brake according to claim 1, it is characterised in that: the brake member is brake ring, institute
State the brake slot for being provided on gear wheel and matching with brake ring.
9. a kind of mower brake according to claim 1, it is characterised in that: the driving machine is engine or electricity
Machine.
10. a kind of grass trimmer, including casing, blade and the driving machine for driving blade rotation, it is characterised in that: the driving machine and
Mower brake described in claim 1 to 9 any one is connected between blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821661958.5U CN209449257U (en) | 2018-10-12 | 2018-10-12 | A kind of mower brake and grass trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821661958.5U CN209449257U (en) | 2018-10-12 | 2018-10-12 | A kind of mower brake and grass trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209449257U true CN209449257U (en) | 2019-10-01 |
Family
ID=68036598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821661958.5U Active CN209449257U (en) | 2018-10-12 | 2018-10-12 | A kind of mower brake and grass trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209449257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362357A (en) * | 2018-10-12 | 2019-02-22 | 浙江亚特电器有限公司 | A kind of mower brake and grass trimmer |
| CN110972722A (en) * | 2019-10-25 | 2020-04-10 | 浙江亚特电器有限公司 | Garden tool |
-
2018
- 2018-10-12 CN CN201821661958.5U patent/CN209449257U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362357A (en) * | 2018-10-12 | 2019-02-22 | 浙江亚特电器有限公司 | A kind of mower brake and grass trimmer |
| CN109362357B (en) * | 2018-10-12 | 2024-02-13 | 浙江亚特电器股份有限公司 | Mower brake device and mower |
| 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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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: 314100 No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |