CN104137709A - Brake device and gardening tool comprising same - Google Patents
Brake device and gardening tool comprising same Download PDFInfo
- Publication number
- CN104137709A CN104137709A CN201310168651.7A CN201310168651A CN104137709A CN 104137709 A CN104137709 A CN 104137709A CN 201310168651 A CN201310168651 A CN 201310168651A CN 104137709 A CN104137709 A CN 104137709A
- Authority
- CN
- China
- Prior art keywords
- brake device
- elastic component
- brake
- component
- rotating shaft
- 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.)
- Granted
Links
Abstract
The invention relates to a brake device and a gardening tool comprising the same. The brake device comprises a rotating wheel, a rotating shaft, a braking member and an elastic member and is provided with a braking state and a non-braking state. The brake device also comprises balance weight which is arranged on the elastic member. When the brake device is in the braking state, the elastic member is in contact with the braking member. When in the braking state, via the direct frictional contact between the elastic member and the braking member, the braking device can achieve braking effects through a simple structure. Meanwhile, compared with structures in the prior art, the brake device is simplified in structure and effectively reduces the production cost.
Description
Technical field
The present invention relates to a kind of brake device, particularly a kind of brake device of garden tools.
Background technology
Some tool-class products are conventionally with cutting part, the mower in garden instrument for example, and it is with incisory blade, and when work, atwirl blade can cut off vegetation.But; when closing mower; for security consideration, need to allow atwirl blade stop operating as early as possible, so as to avoid an accident; conventionally the brake device that blade is stopped operating as early as possible can be set; brake device is generally divided into deceleration of electrons and mechanical braking, and the patent that for example China Patent No. is 200610096647.4 has disclosed a kind of mechanical braking mechanism, but this kind of mechanism structure complexity; the parts that relate to are more, and manufacturing cost is high.
Summary of the invention
The present invention is in order to address the deficiencies of the prior art, provide a kind of simple in structure, the brake device of low cost of manufacture, it comprises runner, rotating shaft, brake component and elastic component, described brake device has on-position and non-on-position, and described brake device also comprises balancing weight, and described balancing weight is arranged on elastic component, when brake device is during in on-position, described elastic component contacts with brake component.
The present invention also provides a kind of garden instrument with brake device of the present invention, and described garden instrument comprises motor, support and cutting part.The rotating shaft of described brake device and brake component are arranged on described support, and described rotating shaft is connected with cutting part, and described rotaring wheeling sleeve is located in rotating shaft.
Attached technical scheme of the present invention below.
Described brake component has rubbing surface, and described elastic component has contact-making surface, and when on-position, described rubbing surface and contact-making surface produce friction.
Described balancing weight is arranged on the described contact-making surface back side.
Described elastic component is arranged on runner, and described brake component is sheathed in rotating shaft, and described elastic component is between rubbing surface and the inwall of runner.
Described elastic component is bar shaped elastic component.
Described brake device comprises fixture, and the both ends of described elastic component are fixed on runner by fixture.
Described elastic component has kink.
Described elastic component also has claw, and described balancing weight is fixed on elastic component by claw.
Useful technique effect of the present invention is: brake device is when on-position, utilize elastic component to contact with brake component direct friction, use simple structure just can reach braking effect, and compare with the structure of prior art, the structure of having simplified whole brake device, effectively reduces production cost.
Accompanying drawing explanation
Fig. 1 is the cutaway view of embodiment of the present invention brake device.
Fig. 2 is the exploded view of embodiment of the present invention brake device.
Fig. 3 is another schematic diagram of embodiment of the present invention brake device.
Fig. 4 is the vertical view of embodiment of the present invention brake device.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As illustrated in fig. 1 and 2, the present embodiment is that brake device of the present invention is arranged on garden instrument, is illustrated as brake device and is arranged on the schematic diagram on mower.Described garden instrument comprises motor 1, support 2, driving-belt 3 and brake device, and described brake device comprises brake component 6, elastic component 5 and balancing weight 9.Described motor 1 is arranged on support 2, on described support 2, be also provided with runner 4, runner 4 is provided with rotating shaft 41, rotating shaft 41 is supported by bearing 7, rotating shaft 41 one end are provided with the cutting part (not shown) of blade or other types, after described motor 1 starts, thereby to runner 4, drive rotating shaft 41 and cutting part to rotate transmission of power by driving-belt 3.Those skilled in the art are known, described cutting part can be directly and the rotating shaft of motor 1 matched, now just do not need driving-belt to carry out transmission, these all can be changed according to the designing requirement of different garden instruments.Described brake component 6 is fixed on support 2 by the fixing hole 61 on it and screw, and is sheathed in rotating shaft 41, and described elastic component 5 is arranged on runner 4, and elastic component 5 is provided with balancing weight 9.When described elastic component 5 contacts with brake component 6, be now the on-position of brake device, when described elastic component 5 does not contact with brake component 6, be now the non-on-position of brake device.After garden instrument starts, runner 4 rotations, due to the centrifugal force of balancing weight 9, it moves to the direction away from brake component 6, thereby drives elastic component 5 deformation, and when rotating shaft 41 reaches certain rotating speed, elastic component 5 loses and the contacting of brake component 6; After garden instrument is closed, runner 4 runs out of steam, so rotating speed reduces gradually, the centrifugal force of balancing weight 9 reduces gradually, thereby elastic component 5 recovers deformation gradually near brake component 6, when reaching certain rotating speed, elastic component 5 contacts with brake component 6, produce friction, thereby must reduce sooner the rotating speed of rotating shaft 41, play braking action.
As shown in Figures 3 and 4, described runner 4 is provided with screw hole 43, and described elastic component 5 both ends are provided with bend 52, and screw 8, through the rear drivescrew of bend 52 hole 43, is fixed on elastic component 5 on runner 4.In the present embodiment, elastic component 5 has two, and the quantity of elastic component can require to change according to specific design.Described elastic component 5 is strip flexible strip, is also provided with claw 51(as shown in Figure 2 on elastic component 5), claw 51 is fixed on described balancing weight 9 on elastic component 5; In addition, balancing weight 9 can be fixed by welding on elastic component 5, or first welding and then fix by claw, makes fixing more reliable.The elastic component 5 of described balancing weight 9 both sides is provided with kink 53, and described kink 53 has increased the elasticity of elastic component 5, makes brake device have better effect.Described elastic component 5 is positioned at the inwall 44 of runner 4 and the rubbing surface 62(of brake component 6 as shown in Figure 2) between, described inwall 44 is provided with breach 42, prevents brake component 5 when deformation and inwall 44 is interfered.Described elastic component 5 is provided with contact-making surface 54, and balancing weight 9 is positioned at contact-making surface 54 back sides, when on-position, produces circumferentially friction between contact-making surface 54 and rubbing surface 62.
Brake device of the present invention utilizes rotary inertia and the centrifugal force of elastic component, and when on-position, elastic component directly contacts with brake component, produces circumferentially friction, the rotating speed of rotating shaft is reduced rapidly, thereby cutting part must be stopped the rotation sooner, realizes braking function.Described brake device structure is simple, and required parts are few, effectively reduce production cost.It is pointed out that above-mentioned preferred embodiment is only explanation technical conceive of the present invention and feature, its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a brake device, comprise runner, rotating shaft, brake component and elastic component, described brake device has on-position and non-on-position, it is characterized in that: described brake device also comprises balancing weight, described balancing weight is arranged on elastic component, when brake device is during in on-position, described elastic component contacts with brake component.
2. brake device as claimed in claim 1, is characterized in that: described brake component has rubbing surface, and described elastic component has contact-making surface, and when on-position, described rubbing surface and contact-making surface produce friction.
3. brake device as claimed in claim 2, is characterized in that: described balancing weight is arranged on the described contact-making surface back side.
4. brake device as claimed in claim 2, is characterized in that: described elastic component is arranged on runner, and described brake component is sheathed in rotating shaft, and described elastic component is between rubbing surface and the inwall of runner.
5. brake device as claimed in claim 1, is characterized in that: described elastic component is bar shaped elastic component.
6. brake device as claimed in claim 1, is characterized in that: described brake device comprises fixture, and the both ends of described elastic component are fixed on runner by fixture.
7. brake device as claimed in claim 1, is characterized in that: described elastic component has kink.
8. brake device as claimed in claim 1, is characterized in that: described elastic component also has claw, and described balancing weight is fixed on elastic component by claw.
9. a garden instrument, comprises motor, support and cutting part, it is characterized in that: described garden instrument also comprises the brake device described in arbitrary claim in claim 1 to 8.
10. garden instrument as claimed in claim 9, described rotating shaft and brake component are arranged on support, and described rotating shaft is connected with cutting part, and described rotaring wheeling sleeve is located in rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310168651.7A CN104137709B (en) | 2013-05-09 | 2013-05-09 | Brake apparatus and the garden instrument with the brake apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310168651.7A CN104137709B (en) | 2013-05-09 | 2013-05-09 | Brake apparatus and the garden instrument with the brake apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104137709A true CN104137709A (en) | 2014-11-12 |
| CN104137709B CN104137709B (en) | 2018-01-30 |
Family
ID=51847193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310168651.7A Active CN104137709B (en) | 2013-05-09 | 2013-05-09 | Brake apparatus and the garden instrument with the brake apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104137709B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1904089A (en) * | 1929-12-05 | 1933-04-18 | Duff Norton Mfg Company | Centrifugal brake |
| CN1664399A (en) * | 2005-02-07 | 2005-09-07 | 常州合力电器有限公司 | Inertial rotation axial braking device for gardening tool |
| CN201182102Y (en) * | 2007-12-30 | 2009-01-21 | 苏州宝时得电动工具有限公司 | Brake device of garden tools |
| CN101699950A (en) * | 2009-11-04 | 2010-05-05 | 金莱克电气股份有限公司 | Braking device for gardening tools |
| CN203261787U (en) * | 2013-05-09 | 2013-11-06 | 天佑电器（苏州）有限公司 | Brake device and gardening tool adopting same |
-
2013
- 2013-05-09 CN CN201310168651.7A patent/CN104137709B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1904089A (en) * | 1929-12-05 | 1933-04-18 | Duff Norton Mfg Company | Centrifugal brake |
| CN1664399A (en) * | 2005-02-07 | 2005-09-07 | 常州合力电器有限公司 | Inertial rotation axial braking device for gardening tool |
| CN201182102Y (en) * | 2007-12-30 | 2009-01-21 | 苏州宝时得电动工具有限公司 | Brake device of garden tools |
| CN101699950A (en) * | 2009-11-04 | 2010-05-05 | 金莱克电气股份有限公司 | Braking device for gardening tools |
| CN203261787U (en) * | 2013-05-09 | 2013-11-06 | 天佑电器（苏州）有限公司 | Brake device and gardening tool adopting same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104137709B (en) | 2018-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102705269A (en) | Silencing fan with two fan blades | |
| MX344998B (en) | Valve actuator torque limiter. | |
| CN104329123B (en) | Turbine bucket and wheel disc fixed structure | |
| CN102678887A (en) | Reducer and motor brake thereof | |
| CN203261787U (en) | Brake device and gardening tool adopting same | |
| CN204828378U (en) | Prevent damping device of excess revolutions | |
| CN101467507B (en) | Brake device of garden tools | |
| CN104137709A (en) | Brake device and gardening tool comprising same | |
| CN205231929U (en) | Tubular motor's electromagnetic clutch device | |
| CN105003386B (en) | Centrifuge speed limit wind energy conversion system | |
| CN104141712A (en) | Brake mechanism | |
| CN103863009B (en) | Castor with self-locking mechanism | |
| CN201182102Y (en) | Brake device of garden tools | |
| CN104170590A (en) | Electric tool with improved brake structure and electric motor of electric tool | |
| CN212055581U (en) | Centrifugal rotary speed limiter | |
| CN103794388A (en) | Torsional spring operating mechanism for universal circuit breaker | |
| CN203836012U (en) | Novel coupler | |
| CN202360699U (en) | Elastic contact transmission device | |
| CN202468785U (en) | Braking device for fire fighting robot | |
| CN103441610B (en) | A kind of braking motor | |
| CN201771998U (en) | Brake for curtain rolling machine of big-arch shelter | |
| CN103953585B (en) | Fork type torque amplification device | |
| CN103963027B (en) | Swing-type power tool | |
| CN205968505U (en) | Angle grinder | |
| CN205531226U (en) | Automatic groover of telescopic cutter cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |