CN2768425Y - Inertial rotating axial braking device for horticultural tool - Google Patents
Inertial rotating axial braking device for horticultural tool Download PDFInfo
- Publication number
- CN2768425Y CN2768425Y CN 200520069011 CN200520069011U CN2768425Y CN 2768425 Y CN2768425 Y CN 2768425Y CN 200520069011 CN200520069011 CN 200520069011 CN 200520069011 U CN200520069011 U CN 200520069011U CN 2768425 Y CN2768425 Y CN 2768425Y
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- CN
- China
- Prior art keywords
- untie
- sell
- driven pulley
- braking device
- driven wheel
- 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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Abstract
The utility model discloses an inertial rotating axial braking device for a horticultural tool, which is composed of a working axle for installing a cutter, a driven wheel, a housing and a brake pad, wherein the working axle for installing the cutter is rotationally connected with the housing on which the brake pad is arranged, the working axle is connected with the driven wheel through screw threads, a bulge is arranged on the outer end surface of the driven wheel and a pull piece is fixedly arranged on the working axle and is arranged on a position capable of making the rotating plane of the pull piece positioned in the height range of the bulge. After a power source of the utility model is cut off, inertia difference is arranged between the working axle, a rotating piece (the cutter, etc.) installed on the working axle and the driven wheel, the working axle and the driven wheel generate opposite rotation, the driven wheel is axially moved until the end surface of the inner side of the driven wheel is contacted and acted on the brake pad installed on the housing, therefore the utility model can reduce the requirements of materials of relevant components so as to have the advantages of cost reduction, simple structure, high braking reliability and convenient processing and maintenance and achieve the standard requirement.
Description
Technical field
The utility model relates to a kind of brake device that is used for garden instrument, relates in particular to a kind of inertial rotation axial braking device for gardening tool.
Background technology
Garden instrument is after power source is cut off, and its working shaft can not stop very soon owing to inertia.But the device that has some that specific (special) requirements is arranged is required after power source is cut off, and its revolving part that is installed on the working shaft can stop operating fast.The grass pruning machine that for example belongs to the gardens electric tool, revolving part is blade, by belt transmission, require blade to stop operating in 3～5 seconds behind the dump of electromotor between working shaft and the motor main shaft, present above-mentioned garden instrument is put and is all adopted some devices to help fast braking.Wherein have and take the deceleration of electrons device, in case but electronic component lost efficacy, " killing " phenomenon will take place, cause motor to damage.Have and adopt mechanical brake device, but the structure of present disclosed mechanical brake device is all complicated, poor reliability, processing, maintenance owe convenient.Other axial brake shortcoming is: 1, manufacturing structure complexity, manufacturing cost height; 2, owing to utilized the elastic force of spring to come braking brake, As time goes on spring force can diminish, and loses efficacy at last.
Summary of the invention
The utility model provide a kind of can reduce material requirements to parts, simple in structure, reliability is high and reach the inertial rotation axial braking device for gardening tool of standard-required.
The utility model adopts following technical scheme:
A kind of inertial rotation axial braking device for gardening tool, form by the working shaft that is used for mounting cutter, driven pulley, shell and brake block, the working shaft and the shell of mounting cutter are rotationally connected, brake block is located on the shell, working shaft is threaded with driven pulley, on the outer face of driven pulley, be provided with projection, on working shaft, be fixed with dialing part and be arranged on the position that the rotational plane that can make dialing part is positioned at the altitude range of projection.
Compared with prior art, the utlity model has following advantage:
1. after power source is cut off, working shaft and be installed on revolving part (cutter etc.) on the working shaft and driven pulley between the inertia that exists poor, working shaft and driven pulley are relatively rotated, driven pulley is moved axially, touch and act on the brake block that is installed on the shell until the driven pulley inner side end, produce the braking friction, therefore the normal pressure that produces the braking friction realizes by screw thread, compared with prior art, the producing method of the required normal pressure of this friction can reduce the material requirement to related components, thereby reduce cost, simple in structure, the braking reliability is high and reach standard-required, processes, easy to maintenance; When electric motor starting, driven pulley begins to rotate, and relatively rotates with the working shaft that is in static inertial states, makes the driven pulley inner side end break away from brake block, and instrument is in running order.
2. the brake block of forming by untie-sell, position-limitting pin, spring and untie-sell seat, when braking takes place, because the effect of spring makes brake block be adjacent to driven pulley all the time, keep good braking effect and reliability, and can effectively overcome because of the uneven defective that reduces braking effect of brake area.
3. the technical measures of friction plate are set on driven pulley, have increased reliability, prolonged service life, simplified processing technology, reduced cost and do not reduced braking effect.Friction plate is simple in structure, is easy to processing, combines with driven pulley, and it is durable, wear-resisting that it is become, and can reduce processing request again, meet the driven pulley of brake request.
4. the adjustable projection in position can make projection be positioned at rational position.
Description of drawings
Fig. 1 is the example structure schematic diagram.Among the figure, 1 is motor, and 2 is driving wheel, and 3 is belt, and 6 is the opening circlip, and 8 is oiliness bearing, and 9 and 10 is bearing, and 11 is the opening circlip.
Fig. 2 is that the local of Fig. 1 and the A that omits the opening circlip are to zoomed-in view.
Fig. 3 is a driven pulley embodiment three-dimensional view.
Fig. 4 is another embodiment three-dimensional view of driven pulley.
Fig. 5 is for containing friction plate example structure schematic diagram.
Fig. 6 is embodiment 2 structural representations.
Fig. 7 is embodiment 3 structural representations.
Fig. 8 is embodiment partial structurtes schematic diagrames
Embodiment
Embodiment 1
(referring to Fig. 1) a kind of inertial rotation axial braking device for gardening tool, by the working shaft 7 that is used for mounting cutter, driven pulley 4, shell 17 and brake block are formed, the working shaft 7 and the shell 17 of mounting cutter are rotationally connected, brake block is located on the shell 17, working shaft 7 7-4 that is threaded with driven pulley 4, on the outer face of driven pulley 4, be provided with protruding 4-1, on working shaft 7, be fixed with dialing part 5 and be arranged on the position that the rotational plane that can make dialing part 5 is positioned at the altitude range of protruding 4-1, in the present embodiment, brake block is by untie-sell 13, position-limitting pin 14, spring 15 is formed with untie-sell seat 18, untie-sell seat 18 is located on the shell 17, untie-sell 13 and spring 15 are located in the untie-sell seat 18, spring 15 is located between untie-sell 13 and untie-sell seat 18 bottoms, on the side face of untie-sell 13, be provided with locating slip groove 13-1, position-limitting pin 14 is located on the untie-sell seat 18 and its head is positioned at locating slip groove 13-1, in untie-sell 13, be provided with friction plate 12, (referring to Fig. 5) driven pulley 4 with friction plate 12 opposing end faces on be provided with friction plate 16.
(referring to Fig. 1) a kind of inertial rotation axial braking device for gardening tool, by the working shaft 7 that is used for mounting cutter, driven pulley 4, shell 17 and brake block are formed, the working shaft 7 and the shell 17 of mounting cutter are rotationally connected, brake block is located on the shell 17, working shaft 7 7-4 that is threaded with driven pulley 4, on the outer face of driven pulley 4, be provided with protruding 4-1, on working shaft 7, be fixed with dialing part 5 and be arranged on the position that the rotational plane that can make dialing part 5 is positioned at the altitude range of protruding 4-1, in the present embodiment, brake block is by untie-sell 13, position-limitting pin 14, spring 15 is formed with untie-sell seat 18, untie-sell seat 18 is located on the shell 17, untie-sell 13 and spring 15 are located in the untie-sell seat 18, spring 15 is located between untie-sell 13 and untie-sell seat 18 bottoms, on the side face of untie-sell 13, be provided with locating slip groove 13-1, position-limitting pin 14 is located on the untie-sell seat 18 and its head is positioned at locating slip groove 13-1, (referring to Fig. 6) driven pulley 4 with untie-sell 13 opposing end faces on be provided with friction plate 12.
(referring to Fig. 1) a kind of inertial rotation axial braking device for gardening tool, by the working shaft 7 that is used for mounting cutter, driven pulley 4, shell 17 and brake block are formed, the working shaft 7 and the shell 17 of mounting cutter are rotationally connected, brake block is located on the shell 17, working shaft 7 7-4 that is threaded with driven pulley 4, on the outer face of driven pulley 4, be provided with protruding 4-1, on working shaft 7, be fixed with dialing part 5 and be arranged on the position that the rotational plane that can make dialing part 5 is positioned at the altitude range of protruding 4-1, in the present embodiment, (referring to Fig. 7) brake block adopts friction plate 12 and friction plate 12 to be located on the end face of the driven pulley 4 relative with untie-sell 13, on shell 17, be provided with reed 19 and reed 19 and be positioned at the position that can be superimposed with friction plate 12, (referring to Fig. 4) protruding 4-1 adopts projection and is fixed on the driven pulley 4 by screw 4-11, on driven pulley 4, also be provided with and be used for the screw hole 4-12 that bump position is adjusted, above-mentioned dialing part 5 is disk dialing part and its diameter distance less than center to the protruding 4-1 inboard of driven pulley 4, is provided with shifting block 5-1 on the disk dialing part.
Claims (8)
1, a kind of inertial rotation axial braking device for gardening tool, form by the working shaft that is used for mounting cutter (7), driven pulley (4), shell (17) and brake block, the working shaft of mounting cutter (7) is rotationally connected with shell (17), brake block is located on the shell (17), it is characterized in that working shaft (7) be threaded with driven pulley (4) (7-4), on the outer face of driven pulley (4), be provided with projection (4-1), on working shaft (7), be fixed with dialing part (5) and be arranged on the position that the rotational plane that can make dialing part (5) is positioned at the altitude range of projection (4-1).
2, inertial rotation axial braking device for gardening tool according to claim 1, it is characterized in that brake block is made up of untie-sell (13), position-limitting pin (14), spring (15) and untie-sell seat (18), untie-sell seat (18) is located on the shell (17), untie-sell (13) and spring (15) are located in the untie-sell seat (18), spring (15) is located between untie-sell (13) and untie-sell seat (18) bottom, be provided with locating slip groove (13-1) on the side face of untie-sell (13), position-limitting pin (14) is located on the untie-sell seat (18) and its head is positioned at locating slip groove (13-1).
3, inertial rotation axial braking device for gardening tool according to claim 2 is characterized in that being provided with friction plate (12) in untie-sell (13).
4, inertial rotation axial braking device for gardening tool according to claim 3, it is characterized in that driven pulley (4) with friction plate (12) opposing end faces on be provided with friction plate (16).
5, inertial rotation axial braking device for gardening tool according to claim 2, it is characterized in that driven pulley (4) with untie-sell (13) opposing end faces on be provided with friction plate (12).
6, inertial rotation axial braking device for gardening tool according to claim 1, it is characterized in that brake block adopts friction plate (12) and friction plate (12) to be located on the end face of the driven pulley (4) relative with untie-sell (13), on shell (17), be provided with reed (19) and reed (19) and be positioned at the position that can be superimposed with friction plate (12).
7, inertial rotation axial braking device for gardening tool according to claim 1, it is characterized in that projection (4-1) adopts projection and is fixed on the driven pulley (4) by screw (4-11), also is provided with the screw hole (4-12) that is used for the bump position adjustment on driven pulley (4).
8, inertial rotation axial braking device for gardening tool according to claim 1, it is characterized in that dialing part (5) for disk dialing part and its diameter less than the center of driven pulley (4) to the inboard distance of projection (4-1), on the disk dialing part, be provided with shifting block (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069011 CN2768425Y (en) | 2005-02-07 | 2005-02-07 | Inertial rotating axial braking device for horticultural tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069011 CN2768425Y (en) | 2005-02-07 | 2005-02-07 | Inertial rotating axial braking device for horticultural tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768425Y true CN2768425Y (en) | 2006-04-05 |
Family
ID=36689506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520069011 Expired - Lifetime CN2768425Y (en) | 2005-02-07 | 2005-02-07 | Inertial rotating axial braking device for horticultural tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768425Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300480C (en) * | 2005-02-07 | 2007-02-14 | 常州合力电器有限公司 | Inertial rotation axial braking device for gardening tool |
| WO2008074221A1 (en) * | 2006-12-21 | 2008-06-26 | Positec Power Tools (Suzhou) Co., Ltd. | Power tool |
| CN102218729B (en) * | 2006-12-21 | 2013-01-09 | 苏州宝时得电动工具有限公司 | Power tool |
| CN103181303A (en) * | 2011-12-31 | 2013-07-03 | 侯巧生 | Electric high-branch chain saw |
| CN103442855A (en) * | 2011-03-18 | 2013-12-11 | 罗伯特·博世有限公司 | Machine tool braking apparatus |
-
2005
- 2005-02-07 CN CN 200520069011 patent/CN2768425Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300480C (en) * | 2005-02-07 | 2007-02-14 | 常州合力电器有限公司 | Inertial rotation axial braking device for gardening tool |
| WO2008074221A1 (en) * | 2006-12-21 | 2008-06-26 | Positec Power Tools (Suzhou) Co., Ltd. | Power tool |
| CN101204804B (en) * | 2006-12-21 | 2011-09-07 | 苏州宝时得电动工具有限公司 | Dynamic tools |
| US8235139B2 (en) | 2006-12-21 | 2012-08-07 | Positec Power Tools (Suzhou) Co., Ltd. | Power tool |
| CN102218729B (en) * | 2006-12-21 | 2013-01-09 | 苏州宝时得电动工具有限公司 | Power tool |
| CN103442855A (en) * | 2011-03-18 | 2013-12-11 | 罗伯特·博世有限公司 | Machine tool braking apparatus |
| US9410586B2 (en) | 2011-03-18 | 2016-08-09 | Robert Bosch Gmbh | Machine tool braking apparatus |
| CN103442855B (en) * | 2011-03-18 | 2017-04-05 | 罗伯特·博世有限公司 | Power tool brake mechanism |
| CN103181303A (en) * | 2011-12-31 | 2013-07-03 | 侯巧生 | Electric high-branch chain saw |
| CN103181303B (en) * | 2011-12-31 | 2016-01-20 | 侯巧生 | A kind of electric high-branch chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050207 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |