CN102057815A - Brake device for garden grass cutter - Google Patents
Brake device for garden grass cutter Download PDFInfo
- Publication number
- CN102057815A CN102057815A CN 201010548525 CN201010548525A CN102057815A CN 102057815 A CN102057815 A CN 102057815A CN 201010548525 CN201010548525 CN 201010548525 CN 201010548525 A CN201010548525 A CN 201010548525A CN 102057815 A CN102057815 A CN 102057815A
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- CN
- China
- Prior art keywords
- brake
- output shaft
- belt pulley
- big belt
- brake block
- 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.)
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Abstract
The invention discloses a brake device for a garden grass cutter. The brake device comprises a bracket (1), an output shaft (3), a large belt wheel (2), brake sheets (5), a brake ring (6) and a tension spring (4), wherein the output shaft (3) is rotatably borne on the bracket (1) by a bearing (7); the large belt wheel (2) is sleeved on the output shaft (3) and fixedly connected with the output shaft (3); the brake ring (6) is fixed on the bracket (1) and positioned in the inner cavity of the large belt wheel (2); two brake sheets (5) are provided, encircle the periphery of the brake ring (6) and are hinged with the large belt wheel (2) by a pin shaft; the hinged end of one brake sheet (5) is connected with the free end of the other brake sheet (5) by the tension spring (4); and the two brake sheets (5) can clamp the brake ring (6) through the action force of the tension spring (4). The brake device for the garden grass cutter has the advantages of simple structure and fast brake function.
Description
Technical field
The present invention relates to a kind of garden instrument field, specifically, relate to a kind of gardens mower brake device.
Background technology
Garden instrument commonly used at present particularly mower all needs to adopt brake device.As the disclosed a kind of inertia fast braking device of Chinese patent CN2793420Y.Being connected between the working shaft of this device and belt pulley is threaded, after power source is cut off, utilize working shaft and be installed in revolving part on the working shaft and belt wheel between the inertia that exists poor, make working shaft drive belt wheel and on rotating shaft, do moving axially near matrix, end side surface is touched the brake rubber block on the matrix in belt wheel, produce friction, reach the purpose of braking.But brake device ubiquity complex structure of the prior art, braking be shortcoming rapidly not.
Summary of the invention
Purpose of the present invention provide a kind of simple in structure, brake gardens mower brake device rapidly.
The technical scheme that realizes above-mentioned purpose is: a kind of gardens mower brake device, comprise support, output shaft and big belt pulley, output shaft can be rotated to support on the support by bearing, big belt pulley is sleeved on the output shaft and with output shaft fixedlys connected, also comprise brake block, brake circle and extension spring, the brake circle is fixed on the support and is arranged in the big belt pulley inner chamber, brake block has two and be trapped among the periphery of brake circle, and brake block is hinged by bearing pin and big belt pulley, wherein the hinged end of a brake block is connected by extension spring with the free end of another brake block, and two brake blocks can be held the brake circle tightly by the active force of extension spring.
Brake block is curved.
After adopting technique scheme, when working under the drive of big belt pulley at motor, the brake block of big belt pulley inner chamber overcomes extension spring under action of centrifugal force active force is thrown off the brake circle on the support, and big belt pulley is turned round smoothly, and drives output shaft and turn round together.When motor shuts down, big belt pulley runs out of steam, and brake block is held the brake circle on the support tightly under the effect of extension spring, because brake block is hinged on the big belt pulley, therefore just can stop the coasting of big belt pulley rapidly, and stop output shaft to rotate, reach the purpose of fast braking.The present invention also has simple in structure, advantage of low manufacturing cost.
Description of drawings
Fig. 1 sectional structure schematic diagram of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the perspective view at big belt pulley of the present invention position.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
Shown in Fig. 1 ~ 3, a kind of gardens mower brake device, comprise support 1, output shaft 3 and big belt pulley 2, output shaft 3 can be rotated to support on the support 1 by bearing 7, big belt pulley 2 is sleeved on the output shaft 3 and with output shaft 3 fixedlys connected, also comprise brake block 5, brake circle 6 and extension spring 4, brake circle 6 is fixed on the support 1 and is arranged in big belt pulley 2 inner chambers, brake block 5 has two and be trapped among the periphery of brake circle 6, and brake block 5 is hinged by bearing pin and big belt pulley 2, wherein the hinged end of a brake block 5 is connected by extension spring 4 with the free end of another brake block 5, and two brake blocks 5 can be held brake circle 6 tightly by the active force of extension spring 4.
As shown in Figure 3, brake block 5 is curved.Adopt this structure to be convenient to brake block 5 and hold brake circle 6 tightly
Operation principle of the present invention is as follows:
When working under the drive of big belt pulley 2 at motor, the brake block 5 of big belt pulley 2 inner chambers overcomes extension spring 4 under action of centrifugal force active force is thrown off the brake circle 6 on the support 1, big belt pulley 2 turn round smoothly, and drive output shaft 3 turns round together.When motor shuts down, big belt pulley 2 runs out of steam, brake block 5 is at the brake circle of holding tightly under the effect of extension spring 4 on the support 16, because brake block 5 is hinged on the big belt pulley 2, therefore just can stop the coasting of big belt pulley 2 rapidly, and stop output shaft 3 to rotate, reach the purpose of fast braking.
Claims (2)
1. gardens mower brake device, comprise support (1), output shaft (3) and big belt pulley (2), output shaft (3) can be rotated to support on the support (1) by bearing (7), big belt pulley (2) is sleeved on output shaft (3) and upward and with output shaft (3) fixedlys connected, it is characterized in that: also comprise brake block (5), brake circle (6) and extension spring (4), brake circle (6) is fixed on the support (1) and is arranged in big belt pulley (2) inner chamber, brake block (5) has two and be trapped among the periphery of brake circle (6), and brake block (5) is hinged by bearing pin and big belt pulley (2), wherein the hinged end of a brake block (5) is connected by extension spring (4) with the free end of another brake block (5), and two brake blocks (5) can be held brake circle (6) tightly by the active force of extension spring (4).
2. gardens according to claim 1 mower brake device is characterized in that: described brake block (5) is curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548525 CN102057815A (en) | 2010-11-18 | 2010-11-18 | Brake device for garden grass cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548525 CN102057815A (en) | 2010-11-18 | 2010-11-18 | Brake device for garden grass cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102057815A true CN102057815A (en) | 2011-05-18 |
Family
ID=43993491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010548525 Pending CN102057815A (en) | 2010-11-18 | 2010-11-18 | Brake device for garden grass cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102057815A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029292A1 (en) * | 2011-08-30 | 2013-03-07 | 嘉兴亚特园林机械研究所 | Mower brake structure |
| CN103168567A (en) * | 2011-12-22 | 2013-06-26 | 浙江三锋实业股份有限公司 | Automatic braking device of gardening tool |
| 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 |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0022689A1 (en) * | 1979-07-04 | 1981-01-21 | Societe Francaise D'equipements Pour La Navigation Aerienne (S.F.E.N.A.) | Centrifugal brake for cardan suspended gyroscope |
| US4296852A (en) * | 1977-11-10 | 1981-10-27 | Mcculloch Corporation | Automatic two-way centrifugal clutch for motor driven apparatus |
| JPS59155632A (en) * | 1983-02-21 | 1984-09-04 | Honda Motor Co Ltd | Centrifugal clutch |
| WO1988004186A1 (en) * | 1986-12-08 | 1988-06-16 | Takeshi Kikuchi | Portable slow-descending device for evacuation |
| GB2284642A (en) * | 1993-12-09 | 1995-06-14 | Bosch Gmbh Robert | A machine comprising a rotating part braked when its speed falls below a defined value |
| EP0761925A1 (en) * | 1995-09-07 | 1997-03-12 | Becker Antriebe GmbH | Braking device for a smoke curtain, fire curtain or similar curtain |
| CN1295521A (en) * | 1998-03-11 | 2001-05-16 | 斯马特卡特公司 | Cart automatic brake mechanism |
| CN2581750Y (en) * | 2002-10-29 | 2003-10-22 | 许炎煌 | Load regulating mechanism for locomotive clutch |
| CN2876432Y (en) * | 2006-03-13 | 2007-03-07 | 程晋文 | Anti large sliding device of miner's truck |
| 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 |
| CN201902480U (en) * | 2010-11-18 | 2011-07-20 | 常州合力电器有限公司 | Brake device for garden lawn mower |
-
2010
- 2010-11-18 CN CN 201010548525 patent/CN102057815A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296852A (en) * | 1977-11-10 | 1981-10-27 | Mcculloch Corporation | Automatic two-way centrifugal clutch for motor driven apparatus |
| EP0022689A1 (en) * | 1979-07-04 | 1981-01-21 | Societe Francaise D'equipements Pour La Navigation Aerienne (S.F.E.N.A.) | Centrifugal brake for cardan suspended gyroscope |
| JPS59155632A (en) * | 1983-02-21 | 1984-09-04 | Honda Motor Co Ltd | Centrifugal clutch |
| WO1988004186A1 (en) * | 1986-12-08 | 1988-06-16 | Takeshi Kikuchi | Portable slow-descending device for evacuation |
| GB2284642A (en) * | 1993-12-09 | 1995-06-14 | Bosch Gmbh Robert | A machine comprising a rotating part braked when its speed falls below a defined value |
| EP0761925A1 (en) * | 1995-09-07 | 1997-03-12 | Becker Antriebe GmbH | Braking device for a smoke curtain, fire curtain or similar curtain |
| CN1295521A (en) * | 1998-03-11 | 2001-05-16 | 斯马特卡特公司 | Cart automatic brake mechanism |
| CN2581750Y (en) * | 2002-10-29 | 2003-10-22 | 许炎煌 | Load regulating mechanism for locomotive clutch |
| CN2876432Y (en) * | 2006-03-13 | 2007-03-07 | 程晋文 | Anti large sliding device of miner's truck |
| 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 |
| CN201902480U (en) * | 2010-11-18 | 2011-07-20 | 常州合力电器有限公司 | Brake device for garden lawn mower |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029292A1 (en) * | 2011-08-30 | 2013-03-07 | 嘉兴亚特园林机械研究所 | Mower brake structure |
| CN103168567A (en) * | 2011-12-22 | 2013-06-26 | 浙江三锋实业股份有限公司 | Automatic braking device of gardening tool |
| CN103168567B (en) * | 2011-12-22 | 2016-03-02 | 浙江三锋实业股份有限公司 | The dead-man's device of garden instrument |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110518 |