CN203261787U - Brake device and gardening tool adopting same - Google Patents
Brake device and gardening tool adopting same Download PDFInfo
- Publication number
- CN203261787U CN203261787U CN 201320248060 CN201320248060U CN203261787U CN 203261787 U CN203261787 U CN 203261787U CN 201320248060 CN201320248060 CN 201320248060 CN 201320248060 U CN201320248060 U CN 201320248060U CN 203261787 U CN203261787 U CN 203261787U
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- Prior art keywords
- brake device
- elastic component
- brake
- component
- rotating shaft
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Abstract
The utility model relates to a brake device and a gardening tool adopting the same. The brake device comprises a turning wheel, a rotating shaft, a brake component and an elastic piece; the brake device has a braking state and a non-braking state; the brake device further comprises a balancing weight; the balancing weight is arranged on the elastic piece; when the brake device is in the braking state, the elastic piece is in contact with the brake component; when the brake device is in the non-braking state, the elastic piece is in frictional contact with the brake component directly. The brake device has the advantages that braking effects can be achieved by adopting a simple structure, compared with a structure of the prior art, the structure of the brake device is simplified, and the production cost is reduced effectively.
Description
Technical field
The utility model relates to a kind of brake device, particularly a kind of brake device of garden tools.
Background technology
Some tool-class products are usually 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; usually the brake device that blade is stopped operating as early as possible can be set; brake device generally is divided into deceleration of electrons and mechanical braking, and for example China Patent No. is that 200610096647.4 patent has disclosed a kind of mechanical braking mechanism, but this kind mechanism structure complexity; the parts that relate to are more, and manufacturing cost is high.
The utility model content
The utility model 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 was in on-position, described elastic component contacted with brake component.
The utility model also provides a kind of garden instrument with brake device described in the utility model, 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.
The below is attached technical scheme of the present utility model.
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 the inwall of rubbing surface and runner.
Described elastic component is the 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 utility model is: brake device is when on-position, utilize elastic component to contact with the brake component direct friction, use simple structure just can reach braking effect, and compare with the structure of prior art, simplify the structure of whole brake device, effectively reduced production cost.
Description of drawings
Fig. 1 is the cutaway view of the utility model embodiment brake device.
Fig. 2 is the exploded view of the utility model embodiment brake device.
Fig. 3 is another schematic diagram of the utility model embodiment brake device.
Fig. 4 is the vertical view of the utility model embodiment brake device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As illustrated in fig. 1 and 2, the present embodiment is that brake device of the present utility model is arranged on garden instrument, is illustrated as brake device and is arranged on schematic diagram on mower.Described garden instrument comprises motor 1, and support 2, driving-belt 3 and brake device, described brake device comprise brake component 6, elastic component 5 and balancing weight 9.Described motor 1 is arranged on support 2, also be provided with runner 4 on described support 2, runner 4 is provided with rotating shaft 41, rotating shaft 41 is supported by bearing 7, rotating shaft 41 1 ends are provided with the cutting part (not shown) of blade or other types, after described motor 1 starts, thereby by driving-belt 3, transmission of power is driven rotating shaft 41 and cutting part rotation to runner 4.Those skilled in the art as can be known, described cutting part can be directly and the rotating shaft of motor 1 matched, just do not need driving-belt to carry out transmission this moment, 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 contacted with brake component 6, be the on-position of brake device this moment, and when described elastic component 5 did not contact with brake component 6, be the non-on-position of brake device this moment.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 reached certain rotating speed, elastic component 5 lost 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 Fig. 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 passes the rear drivescrew of bend 52 hole 43, and elastic component 5 is fixed on runner 4.In the present embodiment, elastic component 5 has two, and the quantity of elastic component can require to do change according to specific design.Described elastic component 5 is the strip flexible strip, also is provided with claw 51(on elastic component 5 as shown in Figure 2), 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, and perhaps 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.The rubbing surface 62(that described elastic component 5 is positioned at the inwall 44 of runner 4 and brake component 6 is 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 utility model utilizes rotary inertia and the centrifugal force of elastic component, and when on-position, elastic component directly contacts with brake component, produce circumferentially friction, the rotating speed of rotating shaft is reduced rapidly, thereby cutting part must be stopped the rotation sooner, realize braking function.Described brake device structure is simple, and required parts are few, effectively reduce production cost.It is to be noted; above-mentioned preferred embodiment only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow person skilled in the art scholar can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (10)
1. 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 was in on-position, described elastic component contacted with brake component.
2. brake device as claimed in claim 1, it 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, it 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 the inwall of rubbing surface and runner.
5. brake device as claimed in claim 1, it is characterized in that: described elastic component is the bar shaped elastic component.
6. brake device as claimed in claim 1, it is characterized in that: described brake device comprises fixture, the both ends of described elastic component are fixed on runner by fixture.
7. brake device as claimed in claim 1, it is characterized in that: described elastic component has kink.
8. brake device as claimed in claim 1, it 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, comprise motor, support and cutting part, it is characterized in that: described garden instrument also comprises the described brake device of 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 |
|---|---|---|---|
| CN 201320248060 CN203261787U (en) | 2013-05-09 | 2013-05-09 | Brake device and gardening tool adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320248060 CN203261787U (en) | 2013-05-09 | 2013-05-09 | Brake device and gardening tool adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261787U true CN203261787U (en) | 2013-11-06 |
Family
ID=49492301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320248060 Expired - Fee Related CN203261787U (en) | 2013-05-09 | 2013-05-09 | Brake device and gardening tool adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137709A (en) * | 2013-05-09 | 2014-11-12 | 天佑电器（苏州）有限公司 | Brake device and gardening tool comprising same |
| CN104214272A (en) * | 2014-08-20 | 2014-12-17 | 上海卫星装备研究所 | Counterweight follow-up brake device |
-
2013
- 2013-05-09 CN CN 201320248060 patent/CN203261787U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137709A (en) * | 2013-05-09 | 2014-11-12 | 天佑电器（苏州）有限公司 | Brake device and gardening tool comprising same |
| CN104214272A (en) * | 2014-08-20 | 2014-12-17 | 上海卫星装备研究所 | Counterweight follow-up brake device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20180509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |