CN201557393U - Garden tool brake device - Google Patents
Garden tool brake device Download PDFInfo
- Publication number
- CN201557393U CN201557393U CN2009202669518U CN200920266951U CN201557393U CN 201557393 U CN201557393 U CN 201557393U CN 2009202669518 U CN2009202669518 U CN 2009202669518U CN 200920266951 U CN200920266951 U CN 200920266951U CN 201557393 U CN201557393 U CN 201557393U
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- CN
- China
- Prior art keywords
- runner
- brake
- bearing
- work spindle
- elastic component
- 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.)
- Expired - Lifetime
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a garden tool brake device which comprises a bracket provided with a motor and a working spindle; a runner is fixed on the working spindle, a motor spindle drives the runner to rotate, a brake ring which is sleeved on the working spindle and extends into the runner is fixed on the bracket, at least an installation chamber is arranged on the runner, an elastic piece which can move in the radial direction and a brake pad which is arranged on one end of the elastic piece and is towards/far away from the brake ring with the movement of the elastic piece are arranged in the installation chamber; when in normal work, the centrifugal force of the brake pad is larger than the pressure of the elastic piece, the brake pad is separated from the brake ring; when in braking, the centrifugal force of the brake pad is smaller than the pressure of the elastic piece, and the brake pad contacts with the brake ring; and the garden tool brake device moves the brake device to the working spindle from the motor spindle, thereby not only facilitating structural design, but also improving the brake effect.
Description
Technical field
The utility model relates to a kind of brake gear of mower.
Background technology
Mower is the gardens electric tool of using always,, drives the work spindle that blade is installed by belt or gear drive and carries out operation as drive unit with motor.When needing to shut down on operation way, the user at first will cut off the electricity supply, and still, blade and work spindle still can run up the end time under action of inertia, thus can not satisfy security requirement, when serious even can cause personal injury.And in design objective, require blade to stop operating in second by the 3-5 after cutting off the electricity supply, so manufacturer all is equipped with brake gear on mower.
In the market, the brake gear of mower generally is installed on the electric machine main shaft, and its shortcoming is:
1. must the longitudinal size of electric machine main shaft be extended, so that brake gear is installed, thus bring difficulty to structural design;
2. the rotating speed of electric machine main shaft is more much higher than the rotating speed of work spindle, and brake gear is installed in the electric machine main shaft end, can make friction plate accelerated wear test, shortens the service life of friction plate;
Since brake gear be installed on the electric machine main shaft, so when brake transmission device be under the stress, tumbler is damaged easily, and braking effect is also poor.
Summary of the invention
The utility model purpose is: a kind of braking device for gardening tools is provided, and this device is installed on the work spindle of garden instrument, has simple in structure, safe, advantages such as braking effect is good, long working life.
The technical scheme of this kind braking device for gardening tools is: comprise the bearing that motor and work spindle are installed, be fixed with runner on the work spindle, electric machine main shaft drives runner and rotates, be fixed with on the described bearing and be enclosed within on the work spindle and stretch into brake ring in the runner, be formed with at least one installation room on the runner, be provided with the elastic component that can move radially in the installation room and be positioned at this elastic component one end and along with moving of elastic component towards/away from the brake block of brake ring, when operate as normal, the centrifugal force of brake block is greater than the pressure of elastic component, brake block and brake ring are separated, and when brake, the centrifugal force of brake block is less than the pressure of elastic component, and brake block contacts with brake ring.
The outer end of described installation room is also opening-like, and runner is fixed with pressing plate corresponding to the outer end opening place of installation room, and clamp portion stretches into the external end head that installation room compresses elastic component.
Described bearing comprises the clamping ring that is enclosed within on the work spindle and stretches into runner top downwards, and the bottom of runner is fixed on the work spindle, and described brake ring is sheathed and be fixed on the clamping ring.The top of described work spindle is installed in bearing and the clamping ring thereof by the clutch shaft bearing and second bearing.
The lower end of described electric machine main shaft is stretched out bearing and is fixed with little runner, and little runner and runner are arranged with a circle driving-belt outward, and electric machine main shaft drives runner by little runner and driving-belt and rotates.
Another purpose of the utility model is: provide a kind of garden instrument with above-mentioned brake gear, simple in structure, safe, advantages such as braking effect is good, long working life that this garden instrument has.
Technical scheme with garden instrument of above-mentioned brake gear is: it comprises that by the terminal blade that drives of work spindle, described installation room is the below of protruding the upper surface of big belt wheel and being positioned at bearing.
The utility model advantage is:
1. the utility model has moved on to brake gear on the work spindle from electric machine main shaft, has not only made things convenient for structural design, and has improved braking effect.
Since the rotating speed of work spindle after the deceleration of too small runner, driving-belt and runner, more much lower than the rotating speed of electric machine main shaft, so the utility model can prolong the service life of friction plate.
3. the utility model is after motor outage, and under various drag effect, rotating speed reduces, and brake block centrifugal force also reduces, and when centrifugal force during less than elastic component pressure, brake block contact with brake ring, and under the frictional force effect, rotating speed reduces rapidly, and realization is braked fast.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is an end view of the present utility model;
Fig. 2 is a partial sectional view of the present utility model;
Fig. 3 is an installation diagram of the present utility model.
Wherein: 1 motor; 2 work spindles; 3 bearings; 31 clamping rings; 4 runners; 5 electric machine main shafts; 6 brake rings; 7 installation rooms; 8 elastic components; 9 brake blocks; 10 pressing plates; 11 little runners; 12 driving-belts; 13 screws; 14 blades; 15 clutch shaft bearings; 16 second bearings.
Embodiment
Embodiment: as shown in Figure 1 to Figure 3, a kind of braking device for gardening tools, comprise the bearing 3 that motor 1 and work spindle 2 are installed, be fixed with runner 4 and blade 14 on the work spindle 2, the lower end of described electric machine main shaft 5 is stretched out bearing 3 and is fixed with little runner 11, little runner 11 and the runner 4 outer circle driving-belts 12 that are arranged with, electric machine main shaft 5 drives runner 4 by little runner 11 and driving-belt 12 and rotates.
Described bearing 3 comprises the clamping ring 31 that is enclosed within on the work spindle 2 and stretches into runner 4 tops downwards, and the bottom of runner 4 is fixed on the work spindle 2.In the present embodiment, runner 4 is an integral structure with work spindle 2.The top of described work spindle 2 is installed in bearing 3 and the clamping ring 31 thereof by the clutch shaft bearing 15 and second bearing 16.
Sheathed and be mounted with brake ring 6 on the described clamping ring 31, the top of runner 4 is formed with two relative installation rooms 7, be provided with the elastic component that can move radially 8 in the installation room 7 and be positioned at these elastic component 8 one ends and along with moving of elastic component 8 towards/away from the brake block 9 of brake ring, when operate as normal, the centrifugal force of brake block 9 is greater than the pressure of elastic component 8, brake block 9 is separated with brake ring 6, and when brake, the centrifugal force of brake block 9 is less than the pressure of elastic component 8, and brake block 9 contacts with brake ring 6.The outer end of described installation room 7 is also opening-like, and runner 4 is fixed with pressing plate 10 corresponding to the outer end opening place of installation room 7 by screw 13, and pressing plate 10 parts stretch into the external end head that installation room 7 compresses elastic component 8.In the present embodiment, described elastic component 8 has been selected spring for use.
The utility model is also protected a kind of garden instrument with above-mentioned brake gear, and it comprises that described installation room 7 is the belows of protruding the upper surface of big belt wheel and being positioned at bearing by the work spindle 2 terminal blades 14 that drive.
Garden instrument in the present embodiment is a mower, and its duty is as follows:
Before motor 1 started, brake block 9 contacted with brake ring 6 under the spring pressure effect; After motor 1 starts, the very fast rising of rotating speed, when runner 4 arrived certain rotating speed, brake block 9 centrifugal force outwards threw away greater than spring pressure, thereby separate with brake ring 6, and mower enters the mowing state.
After motor 1 outage, under various drag effect, rotating speed reduces, and brake block 9 centrifugal force also reduce, and when centrifugal force during less than spring pressure, brake block 9 contacts with brake ring 6, and under the frictional force effect, rotating speed reduces rapidly, thus the realization brake function.
Claims (6)
1. braking device for gardening tools, comprise the bearing (3) that motor (1) and work spindle (2) are installed, be fixed with runner (4) on the work spindle (2), electric machine main shaft (5) drives runner (4) and rotates, it is characterized in that: be fixed with on the described bearing (3) and be enclosed within work spindle (2) and go up and stretch into brake ring (6) in the runner (4), be formed with at least one installation room (7) on the runner (4), be provided with the elastic component (8) that can move radially in the installation room (7) and be positioned at these elastic component (8) one ends and along with moving of elastic component (8) towards/away from the brake block (9) of brake ring (6), when operate as normal, the centrifugal force of brake block (9) is greater than the pressure of elastic component (8), brake block (9) is separated with brake ring (6), and when brake, the centrifugal force of brake block (9) is less than the pressure of elastic component (8), and brake block (9) contacts with brake ring (6).
2. according to the described braking device for gardening tools of claim 1, it is characterized in that: described bearing (3) comprises the clamping ring (31) that is enclosed within on the work spindle (2) and stretches into runner (4) top, the bottom of runner (4) is fixed on the work spindle (2), and described brake ring (6) is sheathed and be fixed on the clamping ring (31).
3. according to the described braking device for gardening tools of claim 2, it is characterized in that: the top of described work spindle (2) is installed in bearing (3) and the clamping ring (31) thereof by clutch shaft bearing (15) and second bearing (16).
4. according to claim 1 or 2 described braking device for gardening tools, it is characterized in that: the outer end of described installation room (7) is also opening-like, runner (4) is fixed with pressing plate (10) corresponding to the outer end opening place of installation room (7), and pressing plate (10) part stretches into the external end head that installation room (7) compresses elastic component (8).
5. according to claim 1 or 2 described braking device for gardening tools, it is characterized in that: the lower end of described electric machine main shaft (5) is stretched out bearing (3) and is fixed with little runner (11), little runner (11) and the outer circle driving-belt (12) that is arranged with of runner (4), electric machine main shaft (5) drives runner (4) by little runner (11) and driving-belt (12) and rotates.
6. garden instrument with brake gear described in the claim 1, it comprises by the terminal blade (14) that drives of work spindle (2), it is characterized in that: described installation room (7) is the below of protruding the upper surface of big belt wheel (4) and being positioned at bearing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202669518U CN201557393U (en) | 2009-11-04 | 2009-11-04 | Garden tool brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202669518U CN201557393U (en) | 2009-11-04 | 2009-11-04 | Garden tool brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201557393U true CN201557393U (en) | 2010-08-25 |
Family
ID=42622538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202669518U Expired - Lifetime CN201557393U (en) | 2009-11-04 | 2009-11-04 | Garden tool brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201557393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699950B (en) * | 2009-11-04 | 2011-07-27 | 苏州金莱克精密机械有限公司 | Braking device for gardening tools |
-
2009
- 2009-11-04 CN CN2009202669518U patent/CN201557393U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699950B (en) * | 2009-11-04 | 2011-07-27 | 苏州金莱克精密机械有限公司 | Braking device for gardening tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU KINGCLEAN PRECISION MACHINERY CO.LTD. Free format text: FORMER OWNER: KINGCLEAN FLOORCARE CO. LTD. Effective date: 20101213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101213 Address after: 215009 Xiangyang Road, New District, Jiangsu, Suzhou, No. 1 Patentee after: Suzhou Kingclean Precision Machinery Co., Ltd. Address before: 215009 Xiangyang Road, New District, Jiangsu, Suzhou, No. 1 Patentee before: Kingclean Floorcare Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100825 Effective date of abandoning: 20091104 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100825 Effective date of abandoning: 20091104 |