CN101699950A - Braking device for gardening tools - Google Patents

Braking device for gardening tools Download PDF

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Publication number
CN101699950A
CN101699950A CN200910174466A CN200910174466A CN101699950A CN 101699950 A CN101699950 A CN 101699950A CN 200910174466 A CN200910174466 A CN 200910174466A CN 200910174466 A CN200910174466 A CN 200910174466A CN 101699950 A CN101699950 A CN 101699950A
Authority
CN
China
Prior art keywords
runner
brake
elastic component
work spindle
bearing
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
Application number
CN200910174466A
Other languages
Chinese (zh)
Other versions
CN101699950B (en
Inventor
倪祖根
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Kingclean Precision Machinery Co Ltd
Original Assignee
Suzhou Kingclean Floorcare Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Kingclean Floorcare Co Ltd filed Critical Suzhou Kingclean Floorcare Co Ltd
Priority to CN2009101744662A priority Critical patent/CN101699950B/en
Publication of CN101699950A publication Critical patent/CN101699950A/en
Priority to GB1017682.4A priority patent/GB2475139B/en
Priority to DE102010043319.5A priority patent/DE102010043319B4/en
Application granted granted Critical
Publication of CN101699950B publication Critical patent/CN101699950B/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/6806—Driving mechanisms
    • A01D34/6812—Braking or clutching mechanisms
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/10—Brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/001—Auxiliary mechanisms for automatic or self-acting brake operation
    • F16D2127/002—Auxiliary mechanisms for automatic or self-acting brake operation speed-responsive

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention discloses a braking device for gardening tools, which comprises a support equipped with a motor spindle and a work spindle, wherein a rotating wheel is fixed on the work spindle and driven to rotate by the motor spindle; a brake ring sleeved on the work spindle and extended into the rotating wheel is fixed on the support; at least one mounting chamber is formed on the rotating wheel; and an elastic component capable of moving radially and a brake pad located at one end of the elastic component and capable of travelling towards/away from the brake ring as the elastic component moves. Accordingly, the centrifugal force of the brake pad is larger than the pressure of the elastic component, the brake pad is separated from the brake ring during the normal operation; whereas the centrifugal force of the brake pad is smaller than the pressure of the elastic component, and the brake pad is in contact with the brake ring during the braking operation. By shifting the braking device from the motor spindle to the work spindle, the invention not only facilitates the structure design, but also improves the braking effect.

Description

Braking device for gardening tools
Technical field
The present invention 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 present invention seeks to: 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 present invention 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 runner and being positioned at bearing.
Advantage of the present invention is:
1. the present invention 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 present invention can prolong the service life of friction plate.
3. the present invention 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 present invention is further described:
Fig. 1 is an end view of the present invention;
Fig. 2 is a partial sectional view of the present invention;
Fig. 3 is an installation diagram of the present invention.
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 present invention also protects 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 runner 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 runner (4) and being positioned at bearing (3).
CN2009101744662A 2009-11-04 2009-11-04 Braking device for gardening tools Active CN101699950B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2009101744662A CN101699950B (en) 2009-11-04 2009-11-04 Braking device for gardening tools
GB1017682.4A GB2475139B (en) 2009-11-04 2010-10-20 Power tool
DE102010043319.5A DE102010043319B4 (en) 2009-11-04 2010-11-03 power tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101744662A CN101699950B (en) 2009-11-04 2009-11-04 Braking device for gardening tools

Publications (2)

Publication Number Publication Date
CN101699950A true CN101699950A (en) 2010-05-05
CN101699950B CN101699950B (en) 2011-07-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009101744662A Active CN101699950B (en) 2009-11-04 2009-11-04 Braking device for gardening tools

Country Status (3)

Country Link
CN (1) CN101699950B (en)
DE (1) DE102010043319B4 (en)
GB (1) GB2475139B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103649578A (en) * 2011-07-13 2014-03-19 胡斯华纳英国有限公司 Brakes
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
CN104170590A (en) * 2013-05-27 2014-12-03 苏州金莱克精密机械有限公司 Electric tool with improved brake structure and electric motor of electric tool
CN104963968A (en) * 2015-06-30 2015-10-07 重庆怡之驰机械有限公司 Roll ball locking device
WO2016004824A1 (en) * 2014-07-10 2016-01-14 嘉兴亚特园林机械研究所 Brake mechanism
CN105864322A (en) * 2016-06-06 2016-08-17 苏州金莱克精密机械有限公司 Centrifugal brake mechanism of motor
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
CN109980844A (en) * 2017-12-27 2019-07-05 罗伯特·博世有限公司 Braking equipment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102388724B (en) * 2011-08-30 2013-07-10 浙江亚特电器有限公司 Mower braking structure
DE102019113111B4 (en) 2019-05-17 2022-08-04 Logicdata Electronic & Software Entwicklungs Gmbh Linear actuator, actuator system, piece of furniture and method for driving a linear actuator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760570A (en) * 1972-09-05 1973-09-25 Black & Decker Mfg Co Centrifugally responsive brake for rotary tool
US4205737A (en) * 1977-09-02 1980-06-03 Briggs & Stratton Corporation Clutch-brake mechanism for rotary mower engines
JP4341804B2 (en) * 2001-01-23 2009-10-14 本田技研工業株式会社 Brush cutter
CN2904621Y (en) * 2006-01-09 2007-05-30 苏州金莱克家用电器有限公司 Lawn mower brake
GB2443785A (en) * 2006-11-15 2008-05-21 Husqvarna Uk Ltd Brake assembly for lawnmower
WO2008103079A1 (en) * 2007-02-22 2008-08-28 Husqvarna Aktiebolag Retarding device for a rotational cutting machine
CN101467507B (en) 2007-12-27 2011-08-03 苏州宝时得电动工具有限公司 Brake device of garden tools
CN201557393U (en) * 2009-11-04 2010-08-25 金莱克电气股份有限公司 Garden tool brake device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103649578A (en) * 2011-07-13 2014-03-19 胡斯华纳英国有限公司 Brakes
CN103649578B (en) * 2011-07-13 2017-02-15 胡斯华纳有限公司 Brakes
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
CN104170590A (en) * 2013-05-27 2014-12-03 苏州金莱克精密机械有限公司 Electric tool with improved brake structure and electric motor of electric tool
WO2016004824A1 (en) * 2014-07-10 2016-01-14 嘉兴亚特园林机械研究所 Brake mechanism
CN104963968A (en) * 2015-06-30 2015-10-07 重庆怡之驰机械有限公司 Roll ball locking device
CN104963968B (en) * 2015-06-30 2017-04-19 重庆怡之驰机械有限公司 Roll ball locking device
CN105864322A (en) * 2016-06-06 2016-08-17 苏州金莱克精密机械有限公司 Centrifugal brake mechanism of motor
CN109980844A (en) * 2017-12-27 2019-07-05 罗伯特·博世有限公司 Braking equipment
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

Also Published As

Publication number Publication date
GB2475139B (en) 2012-03-14
DE102010043319B4 (en) 2022-03-24
GB201017682D0 (en) 2010-12-01
GB2475139A (en) 2011-05-11
CN101699950B (en) 2011-07-27
DE102010043319A1 (en) 2011-06-16

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
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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
TA01 Transfer of patent application right

Effective date of registration: 20101213

Address after: 215009 Xiangyang Road, New District, Jiangsu, Suzhou, No. 1

Applicant after: Suzhou Kingclean Precision Machinery Co., Ltd.

Address before: 215009 Xiangyang Road, New District, Jiangsu, Suzhou, No. 1

Applicant before: Kingclean Floorcare Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant