CN104141712A - Brake mechanism - Google Patents

Brake mechanism Download PDF

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Publication number
CN104141712A
CN104141712A CN201410328428.9A CN201410328428A CN104141712A CN 104141712 A CN104141712 A CN 104141712A CN 201410328428 A CN201410328428 A CN 201410328428A CN 104141712 A CN104141712 A CN 104141712A
Authority
CN
China
Prior art keywords
belt wheel
brake block
brake
pulley
friction
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.)
Pending
Application number
CN201410328428.9A
Other languages
Chinese (zh)
Inventor
张进
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.)
Zhejiang YAT Electrical Appliance Co Ltd
Original Assignee
Zhejiang YAT Electrical Appliance 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 Zhejiang YAT Electrical Appliance Co Ltd filed Critical Zhejiang YAT Electrical Appliance Co Ltd
Priority to CN201410328428.9A priority Critical patent/CN104141712A/en
Publication of CN104141712A publication Critical patent/CN104141712A/en
Priority to PCT/CN2015/082463 priority patent/WO2016004824A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • A01D34/76—Driving mechanisms for the cutters
    • A01D34/78—Driving mechanisms for the cutters electric
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses a brake mechanism, belongs to the field of garden tools, and solves the problem that the brake time of the brake mechanism is instable. The brake mechanism comprises a belt wheel shaft, a big belt wheel and a support with a motor, wherein the big belt wheel is rotationally connected onto the support by the belt wheel and is axially fixed, and the big belt wheel is linked with the output end of the motor; a brake block and a spring are arranged on the big belt wheel, and a friction piece is arranged on the support; the brake block is movably connected with the big belt wheel and can move between positions away from or in contact with the friction piece, and a distance between a contact part of the brake block with the friction piece and the axis of the big belt wheel is greater than a distance between a contact part of the friction piece with the brake block and the axis of the big belt wheel; the spring generates elastic force allowing the brake block to close to the friction piece. The brake mechanism is controlled by the centrifugal force, and the motor rotating speed and the stopping deceleration time are stable, so the braking force generated by the brake block after the motor is stopped and the time required by brake tools are stable, and the braking process is smooth.

Description

A kind of braking mechanism
Technical field
The present invention relates to garden instrument field, particularly a kind of braking mechanism.
Background technique
Due to the requirement of safety braking time, in prior art, by stable not for the mechanical brake structure of braking in motor-driven mowing machine, rotary cultivator or relevant garden instrument, the drawback that braking time wave properties is larger, can not meet its requirement.
Summary of the invention
The object that the present invention will reach is to provide a kind of braking mechanism, can gradual braking.
In order to achieve the above object, the present invention adopts following technological scheme: a kind of braking mechanism, and comprise belt shaft, large belt wheel and the support of motor is housed, large belt wheel is rotatably connected on support and axial restraint by belt shaft, and large belt wheel links with motor output end; Large belt wheel is provided with brake block and spring, support is provided with friction member, brake block is flexibly connected with large belt wheel also can and friction member from or mutually tactile position between move, the part that brake block can touch mutually with friction member and the spacing of large belt wheel axis are greater than the distance of part that friction member can touch mutually with brake block and large belt wheel axis, and spring produces and makes the elastic force of brake block near friction member.
The part that brake block can touch mutually with friction member and the spacing of large belt wheel axis are greater than the distance of part that friction member can touch mutually with brake block and large belt wheel axis, due to large belt wheel and motor output end interlock, in the time that motor output end turns to operating rate, brake block rotates around the axis of large belt wheel with large belt wheel, be subject to the effect brake block of centrifugal force to the direction activity away from large belt wheel axis, thereby with friction member from, do not produce frictional force; When motor stopping stall, large belt wheel slows down, and the centrifugal force that brake block obtains is not enough to offset the elastic force that spring produces, and spring makes brake block to the direction activity near large belt wheel axis, until brake block touches mutually and produces braking force with friction member.
Further, also comprise small pulley, belt, small pulley is located at motor output end and is rotated with motor output end coaxial synchronous, and the axis of described large belt wheel is parallel with the axis of small pulley, and belt is placed on large belt wheel, small pulley and makes large belt wheel and small pulley interlock outward.Connect large belt wheel human relations and small pulley by belt, utilize frictional force transmission, prevent that positive drive from causing parts damages in the time of braking.
Further, described friction member is cylindrical body friction sleeve, and friction sleeve is fixedly connected with or is structure as a whole with described frame, and friction sleeve is provided with axis hole, and belt shaft is coaxial with friction sleeve through friction sleeve.When cylindrical body friction sleeve coaxially arranges with belt shaft brake block go to can and any position all can coordinate with friction sleeve produce braking force.
Further, described brake block is located between the edge of described large belt wheel and the sidewall of described friction sleeve, brake block is rotationally connected with large belt wheel, and the axis that brake block rotates is parallel with the axis of large belt wheel, and described spring generation turns to brake block to touch the elastic force of friction sleeve sidewall.The brake block activity being rotationally connected is more flexible.
Adopt after technique scheme, tool of the present invention has the following advantages:
Utilize centrifugal force controlled braking mechanism, stablize because motor speed is stable, shut down deceleration time, brake block produces braking force after motor stopping and the required time of brake tool stablizes, and braking process is steady.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the schematic diagram of frame;
Fig. 3 is the schematic diagram of large belt wheel.
Embodiment
Fig. 1-3 are depicted as a kind of embodiment of the present invention.
A kind of braking mechanism, comprise belt shaft 1, large belt wheel 2 and the support 3 of motor 9 is housed, large belt wheel 2 is rotatably connected on support 3 and axial restraint by belt shaft 1, also comprise small pulley 7, belt 8, small pulley 7 is located at motor 9 output terminals and is rotated with motor 9 output terminal coaxial synchronous, the axis of large belt wheel 2 is parallel with the axis of small pulley 7, belt 8 is placed on large belt wheel 2, small pulley 7 is outer makes large belt wheel 2 link with small pulley 7, connect large belt wheel 2 human relations and small pulley 7 by belt 8, utilize frictional force transmission, prevent that positive drive from causing parts damages in the time of braking.Support 3 is provided with friction member 6, and friction member 6 is cylindrical body friction sleeve, and friction sleeve is fixedly connected with frame or is structure as a whole, and friction sleeve is provided with axis hole, and belt shaft 1 is coaxial with friction sleeve through friction sleeve.Large belt wheel 2 is provided with brake block 4 and spring 5, brake block 4 is flexibly connected with large belt wheel 2 also can and friction member 6 from or mutually tactile position between move, brake block 4 is located between the edge of large belt wheel 2 and the sidewall of friction sleeve, being the part that can touch mutually with friction member 6 of brake block 4 is greater than the distance of part that friction member 6 can touch mutually with brake block 4 and large belt wheel 2 axle 1 lines with the spacing of large belt wheel 2 axle 1 lines, when cylindrical body friction sleeve coaxially arranges with belt shaft 1 brake block 4 go to can and any position all can coordinate with friction sleeve produce braking force, brake block 4 is rotationally connected with large belt wheel 2, and the axis that brake block 4 rotates is parallel with the axis of large belt wheel 2, spring 5 produces and makes brake block 4 turn to the elastic force that touches friction sleeve sidewall.
The part that brake block 4 can touch mutually with friction member 6 and the spacing of large belt wheel 2 axle 1 lines are greater than the distance of part that friction member 6 can touch mutually with brake block 4 and large belt wheel 2 axle 1 lines, due to large belt wheel 2 and motor 9 output terminal interlocks, in the time that motor 9 output terminals turn to operating rate, brake block 4 rotates around the axis of large belt wheel 2 with large belt wheel 2, be subject to the effect brake block 4 of centrifugal force to the direction activity away from large belt wheel 2 axle 1 lines, thereby with friction member 6 from, do not produce frictional force; When motor 9 is shut down stall, large belt wheel 2 slows down, and the centrifugal force that brake block 4 obtains is not enough to offset the elastic force that spring 5 produces, and spring 5 makes brake block 4 to the direction activity near large belt wheel 2 axle 1 lines, until brake block 4 touches mutually and produces braking force with friction member 6.Utilize centrifugal force controlled braking mechanism, because motor 9 stabilizations of speed, shutdown are stablized deceleration time, brake block 4 produces braking force after motor 9 is shut down and the required time of brake tool stablizes, and braking process is steady.
Except above preferred embodiment, the present invention also has other mode of execution, and those skilled in the art can make according to the present invention various changes and distortion, only otherwise depart from spirit of the present invention, all should belong to the defined scope of claims of the present invention.

Claims (4)

1.一种刹车机构，其特征在于：包括带轮轴(1)、大带轮(2)和装有电机(9)的支架(3)，大带轮通过带轮轴转动连接在支架上且轴向固定，大带轮与电机输出端联动；大带轮上设有刹车块(4)和弹簧(5)，支架上设有摩擦件(6)，刹车块与大带轮活动连接并可在与摩擦件相离或相触的位置间移动，刹车块可与摩擦件相触的部分与大带轮轴线的间距大于摩擦件可与刹车块相触的部分与大带轮轴线的距离，弹簧产生使刹车块靠近摩擦件的弹力。1. A brake mechanism, characterized in that: comprise a pulley shaft (1), a large pulley (2) and a support (3) equipped with a motor (9), the large pulley is connected to the support by the pulley shaft in rotation and axially Fixed, the large pulley is linked with the output end of the motor; the large pulley is provided with a brake block (4) and a spring (5), and the bracket is provided with a friction piece (6). The brake block is movably connected with the large pulley and can be connected with the The friction parts move between the positions where they are separated or in contact. The distance between the part where the brake block can be in contact with the friction part and the axis of the large pulley is greater than the distance between the part where the friction part can contact the brake block and the axis of the large pulley. The spring produces The elastic force that makes the brake pads close to the friction parts. 2.根据权利要求1所述的一种刹车机构，其特征在于：还包括小带轮(7)、皮带(8)，小带轮设于电机输出端并与电机输出端同轴同步转动，所述大带轮的轴线与小带轮的轴线平行，皮带套于大带轮、小带轮外使大带轮与小带轮联动。2. A kind of brake mechanism according to claim 1, is characterized in that: also comprise small pulley (7), belt (8), and small pulley is located at motor output end and rotates coaxially with motor output end synchronously, The axis of the large pulley is parallel to the axis of the small pulley, and the belt is sheathed outside the large pulley and the small pulley so that the large pulley and the small pulley are linked. 3.根据权利要求1或2所述的一种刹车机构，其特征在于：所述摩擦件为圆柱体摩擦套，摩擦套与所述机架固定连接或为一体结构，摩擦套设有轴孔，带轮轴穿过摩擦套与摩擦套同轴。3. A brake mechanism according to claim 1 or 2, characterized in that: the friction member is a cylindrical friction sleeve, the friction sleeve is fixedly connected with the frame or has an integrated structure, and the friction sleeve is provided with a shaft hole , the pulley shaft passes through the friction sleeve and is coaxial with the friction sleeve. 4.根据权利要求3所述的一种刹车机构，其特征在于：所述刹车块设于所述大带轮的边缘与所述摩擦套的侧壁之间，刹车块与大带轮转动连接，且刹车块转动的轴线与大带轮的轴线平行，所述弹簧产生使刹车块转向碰触摩擦套侧壁的弹力。4. A brake mechanism according to claim 3, characterized in that: the brake block is arranged between the edge of the large pulley and the side wall of the friction sleeve, and the brake block is rotatably connected to the large pulley , and the axis of rotation of the brake block is parallel to the axis of the large pulley, and the spring produces an elastic force that makes the brake block turn and touch the side wall of the friction sleeve.
CN201410328428.9A 2014-07-10 2014-07-10 Brake mechanism Pending CN104141712A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410328428.9A CN104141712A (en) 2014-07-10 2014-07-10 Brake mechanism
PCT/CN2015/082463 WO2016004824A1 (en) 2014-07-10 2015-06-26 Brake mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410328428.9A CN104141712A (en) 2014-07-10 2014-07-10 Brake mechanism

Publications (1)

Publication Number Publication Date
CN104141712A true CN104141712A (en) 2014-11-12

Family

ID=51850988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410328428.9A Pending CN104141712A (en) 2014-07-10 2014-07-10 Brake mechanism

Country Status (2)

Country Link
CN (1) CN104141712A (en)
WO (1) WO2016004824A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN106416628A (en) * 2016-03-04 2017-02-22 浙江亚特电器有限公司 Mowing machine
CN109642623A (en) * 2016-06-20 2019-04-16 康斯博格汽车股份公司 The mechanical brake that speed for clutch actuator relies on

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035994A (en) * 1975-05-27 1977-07-19 Hoffco, Inc. Lawn mower blade control apparatus
CN101467507A (en) * 2007-12-27 2009-07-01 苏州宝时得电动工具有限公司 Brake device of garden tools
CN102119607A (en) * 2011-01-04 2011-07-13 浙江亚特电器有限公司 Brake device for grass cutter
CN102388724A (en) * 2011-08-30 2012-03-28 浙江亚特电器有限公司 Mower braking structure
CN204239549U (en) * 2014-07-10 2015-04-01 浙江亚特电器有限公司 A kind of braking mechanism

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3499021B2 (en) * 1994-10-22 2004-02-23 セイレイ工業株式会社 Winch Drum Brake Device for Cable Type Transfer Machine
DE102004043592B3 (en) * 2004-09-09 2006-03-09 Demag Cranes & Components Gmbh Safety brake mechanism for rope hoist, has brake surface provided for brake ring at outer periphery of coupling that concentrically connects output shaft of lifting gear drive and sleeve barrel
CN2904621Y (en) * 2006-01-09 2007-05-30 苏州金莱克家用电器有限公司 Lawn mower brake
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
CN202587876U (en) * 2011-12-16 2012-12-12 常州格力博工具有限公司 Mower brake device
CN104141712A (en) * 2014-07-10 2014-11-12 浙江亚特电器有限公司 Brake mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035994A (en) * 1975-05-27 1977-07-19 Hoffco, Inc. Lawn mower blade control apparatus
CN101467507A (en) * 2007-12-27 2009-07-01 苏州宝时得电动工具有限公司 Brake device of garden tools
CN102119607A (en) * 2011-01-04 2011-07-13 浙江亚特电器有限公司 Brake device for grass cutter
CN102388724A (en) * 2011-08-30 2012-03-28 浙江亚特电器有限公司 Mower braking structure
CN204239549U (en) * 2014-07-10 2015-04-01 浙江亚特电器有限公司 A kind of braking mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016004824A1 (en) * 2014-07-10 2016-01-14 嘉兴亚特园林机械研究所 Brake mechanism
CN106416628A (en) * 2016-03-04 2017-02-22 浙江亚特电器有限公司 Mowing machine
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
CN109642623A (en) * 2016-06-20 2019-04-16 康斯博格汽车股份公司 The mechanical brake that speed for clutch actuator relies on
CN109642623B (en) * 2016-06-20 2020-08-25 康斯博格汽车股份公司 Speed dependent mechanical brake for clutch actuator

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Publication number Publication date
WO2016004824A1 (en) 2016-01-14

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Application publication date: 20141112

RJ01 Rejection of invention patent application after publication