CN103416148A - Automatic paying-off device of mowing machine - Google Patents
Automatic paying-off device of mowing machine Download PDFInfo
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- CN103416148A CN103416148A CN2013103634273A CN201310363427A CN103416148A CN 103416148 A CN103416148 A CN 103416148A CN 2013103634273 A CN2013103634273 A CN 2013103634273A CN 201310363427 A CN201310363427 A CN 201310363427A CN 103416148 A CN103416148 A CN 103416148A
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- paying
- box
- unwrapping wire
- rotating shaft
- drum
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Abstract
The invention discloses an automatic paying-off device of a mowing machine. The automatic paying-off device of the mowing machine comprises a paying-off box, a paying-off cover and a wire spool, wherein the paying-off cover is fixed with the paying-off box in a matching way; the wire spool is arranged in the paying-off box and the paying-off box and can rotate relative to the paying-off box and the paying-off cover; the wire spool realizes relative rotation between of the wire spool and the paying-off box via a mode that a shaft hole in the wire spool cooperates with a rotating shaft on the inner side of the paying-off box; the upper side face of the wire spool is provided with a ratchet wheel; an elastic stopping mechanism is arranged in the paying-off box; the elastic stopping mechanism causes a stopping block to press the ratchet wheel through a spring; the rotating shaft is of a sleeve type structure; at least one pair of elastic ribs is formed on the peripheral wall of the rotating shaft through an open groove; the outer walls of the elastic ribs are provided with first convex ribs which extend axially; a plurality of second convex ribs which extend axially are uniformly distributed in the internal periphery direction of the shaft hole of the wire spool; in the course of paying-off, the elastic ribs are scattered outward under the action of centrifugal force, and the first convex ribs and the second convex ribs cooperate in a friction way to form damping, so that the stable paying-off is realized.
Description
Technical field
The present invention relates to a kind of mower, relate in particular to a kind of actinobacillus device of mower.
Background technology
Mower is a kind of garden tool commonly used, is mainly used to build the operations such as lawn.The working head of mower mainly comprises with motor and mowing-apparatus two parts, its mowing-apparatus is divided into again two kinds of rigidity cutterhead and flexible secants, cutterhead is to utilize blade to be mowed, flexible secant is that the cutting force that utilizes secant to produce when High Rotation Speed is mowed, blade and secant all can be worn after using a period of time, blade abrasion can be changed later, after the secant wearing and tearing, can shorten, secant could effectively need to be used when being pulled out to suitable active length in draw drum, and the wearing and tearing of secant may be faster compared with blade, so use using flexible secant be wrapped on draw drum when mowing-apparatus is mowed, to pull out continually secant, to guarantee the active length of secant, the optimum Working that keeps mower, so just to operating personnel, brought larger trouble.
In order to address the above problem, more existing mowers have adopted automatic paying-off device, the unwrapping wire lid that this automatic paying-off device comprises releasing box, be fixed with releasing box and be arranged in releasing box and unwrapping wire lid and can cover the drum rotated relative to releasing box and unwrapping wire, drum is to coordinate and realize that both in relative rotation with the rotating shaft of releasing box inboard by its axis hole, drum one side is provided with ratchet, be provided with elastic stopping mechanism in described releasing box, this elastic stopping mechanism utilizes spring that scotch is pressed to ratchet.When secant shortens because of wearing and tearing, the mowing resistance reduces, the rotating speed of motor will be accelerated, corresponding centrifugal force also increases, the elastic force that scotch overcomes spring under the effect of centrifugal force leaves ratchet, and drum will automatically turn over a tooth under the pulling of the centrifugal force of secant, thereby secant is lengthened, to guarantee the active length of secant.Although above-mentioned automatic paying-off device is simple in structure, realized automatic unwrapping wire, in actual use procedure, also have following defect: due to the axis hole of drum and the rotating shaft cross section of releasing box inboard, be 1, all round, have inertia during unwrapping wire, unwrapping wire is unstable; While 2, working, drum is because Action of Gravity Field contacts with the unwrapping wire lid down, and the unwrapping wire instant impact is larger, between drum and unwrapping wire lid, relatively rotates, easy to wear.
Summary of the invention
The present invention seeks to: the automatic paying-off device that a kind of simple in structure, mower that unwrapping wire is stable is provided.
technical scheme of the present invention is: a kind of automatic paying-off device of mower, comprise releasing box, the unwrapping wire be fixed with releasing box covers, and be arranged in releasing box and unwrapping wire lid and relatively releasing box and unwrapping wire cover the drum rotated, drum is to coordinate and realize that both in relative rotation with the rotating shaft of releasing box inboard by its axis hole, the drum upper side is provided with ratchet, be provided with elastic stopping mechanism in described releasing box, this elastic stopping mechanism utilizes spring that scotch is pressed to ratchet, described rotating shaft is sleeve-like structure, at least be formed with a pair of elasticity muscle by open slot on its perisporium, described elasticity muscle outer wall has axially extended the first convex tendon, the axle hole inner circle Zhou Fangxiang of described drum is evenly equipped with some axially extended the second convex tendons, during unwrapping wire, the elasticity muscle outwards scatters under centrifugal action, the first convex tendon and the second convex tendon frictional fit form damping and realize stablizing unwrapping wire.
Further technical scheme is: described drum lower surface convexes with protruding axle, protruding axle periphery is interval with some outward extending auxiliary bars, the height of described auxiliary bar is less than the height of protruding axle, be provided with the bulge loop corresponding with protruding axle in described unwrapping wire lid, during duty, described protruding axle is embedded in bulge loop, and auxiliary bar contacts cooperation with the bulge loop upper surface.The setting of auxiliary bar and bulge loop is equivalent to increase a plastic bearing like this, is conducive to reduce friction, has alleviated unwrapping wire moment, the wearing and tearing that drum and unwrapping wire lid are caused because impulsive force is large, and then the service life of prolongation automatic paying-off device.
In order to increase the intensity of bulge loop, between the perisporium of described unwrapping wire lid and the periphery wall of bulge loop, compartment of terrain is furnished with some reinforcements.For the intensity that increases rotating shaft and and releasing box between bonding strength, the endoporus upper end of described rotating shaft is provided with reinforcement, the surrounding of reinforcement and the perisporium of rotating shaft are connected and fixed, top and the releasing box of reinforcement are connected and fixed.
Advantage of the present invention is:
1. during unwrapping wire of the present invention, the elasticity muscle of rotating shaft outwards scatters under centrifugal action, and the second convex tendon frictional fit in the first convex tendon of elasticity muscle and drum axis hole forms damping, improves the stability of unwrapping wire.
. during unwrapping wire of the present invention, the protruding axle of described drum bottom is embedded in the bulge loop of unwrapping wire lid, and the auxiliary bar of protruding axle periphery contacts cooperation with the bulge loop upper surface, the setting of auxiliary bar and bulge loop is equivalent to increase a plastic bearing like this, be conducive to reduce friction, alleviated unwrapping wire moment, the wearing and tearing that drum and unwrapping wire lid are caused because impulsive force is large, and then the service life of prolongation automatic paying-off device.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
The structural representation that Fig. 1 is releasing box in the present invention;
The structural representation that Fig. 2, Fig. 3 are drum in the present invention;
The structural representation that Fig. 4 is unwrapping wire lid in the present invention.
Wherein: 1 releasing box; 11 rotating shafts; 111 elasticity muscle; 112 first convex tendons; 113 open slots; 12 reinforcements;
2 unwrapping wire lids; 21 bulge loops; 22 reinforcements;
3 drums; 31 axis holes; 32 ratchets; 33 second convex tendons; 34 protruding axles; 35 auxiliary bars;
4 elastic stopping mechanisms; 41 springs; 42 scotch.
Embodiment
embodiment: as shown in Figures 1 to 4, a kind of automatic paying-off device of mower, comprise releasing box 1, the unwrapping wire be fixed with releasing box 1 covers 2, and be arranged in releasing box 1 and unwrapping wire lid 2 and relatively releasing box 1 and unwrapping wire cover 2 drums that rotate 3, drum 3 is to coordinate and realize that both in relative rotation with the rotating shaft 11 of releasing box 1 inboard by its axis hole 31, drum 3 upper sides are provided with ratchet 32, be provided with elastic stopping mechanism 4 in described releasing box 1, this elastic stopping mechanism 4 utilizes spring 41 that scotch 42 is pressed to ratchet 32, when secant shortens because of wearing and tearing, the mowing resistance reduces, the rotating speed of motor will be accelerated, corresponding centrifugal force also increases, the elastic force that scotch 42 overcomes spring 41 under the effect of centrifugal force leaves ratchet 32, and drum 3 will automatically turn over a tooth under the pulling of the centrifugal force of secant, thereby secant is lengthened, to guarantee the active length of secant.
Further, described rotating shaft 11 is sleeve-like structure, at least be formed with a pair of elasticity muscle 111 by open slot 113 on its perisporium, described elasticity muscle 111 outer walls have axially extended the first convex tendon 112, the axis hole 31 inner periphery directions of described drum 3 are evenly equipped with some axially extended the second convex tendons 33, and during unwrapping wire, elasticity muscle 111 outwards scatters under centrifugal action, the first convex tendon 112 and the second convex tendon 33 frictional fit form damping, improve the stability of unwrapping wire.
Described drum 3 lower surfaces convex with protruding axle 34, protruding axle 34 peripheries are interval with some outward extending auxiliary bars 35, the height of described auxiliary bar 35 is less than the height of protruding axle 34, be provided with the bulge loop 21 corresponding with protruding axle 34 in described unwrapping wire lid 2, during duty, described protruding axle 34 is embedded in bulge loop 21, and auxiliary bar 35 contacts cooperation with bulge loop 21 upper surfaces.The setting of auxiliary bar and bulge loop is equivalent to increase a plastic bearing like this, is conducive to reduce friction, has alleviated unwrapping wire moment, the wearing and tearing that drum and unwrapping wire lid are caused because impulsive force is large, and then the service life of prolongation automatic paying-off device.
In the present embodiment, in order to increase the intensity of bulge loop 21, between the perisporium of described unwrapping wire lid 2 and the periphery wall of bulge loop 21, compartment of terrain is furnished with some reinforcements 22.For the intensity that increases rotating shaft 11 and and releasing box 1 between bonding strength, the endoporus upper end of described rotating shaft 11 is provided with reinforcement 12, the perisporium of the surrounding of reinforcement 12 and rotating shaft 11 is connected and fixed, the top of reinforcement 12 and releasing box 1 are connected and fixed.
Be only below concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the present invention's scope required for protection.
Claims (4)
1. the automatic paying-off device of a mower, comprise releasing box (1), the unwrapping wire be fixed with releasing box (1) covers (2), and be arranged in releasing box (1) and unwrapping wire lid (2) and relatively releasing box (1) and unwrapping wire cover the drum (3) that rotate (2), drum (3) is to coordinate and realize that both in relative rotation with the rotating shaft (11) of releasing box (1) inboard by its axis hole (31), drum (3) upper side is provided with ratchet (32), be provided with elastic stopping mechanism (4) in described releasing box (1), this elastic stopping mechanism (4) utilizes spring (41) that scotch (42) is pressed to ratchet (32), it is characterized in that: described rotating shaft (11) is sleeve-like structure, at least be formed with a pair of elasticity muscle (111) by open slot (113) on its perisporium, described elasticity muscle (111) outer wall has axially extended the first convex tendon (112), axis hole (31) the inner periphery direction of described drum (3) is evenly equipped with some axially extended the second convex tendons (33), during unwrapping wire, elasticity muscle (111) outwards scatters under centrifugal action, the first convex tendon (112) forms damping with the second convex tendon (33) frictional fit and realizes stablizing unwrapping wire.
2. the automatic paying-off device of a kind of mower according to claim 1, it is characterized in that: described drum (3) lower surface convexes with protruding axle (34), protruding axle (34) periphery is interval with some outward extending auxiliary bars (35), the height of described auxiliary bar (35) is less than the height of protruding axle (34), be provided with the bulge loop (21) corresponding with protruding axle (34) in described unwrapping wire lid (2), during duty, described protruding axle (34) is embedded in bulge loop (21), and auxiliary bar (35) contacts cooperation with bulge loop (21) upper surface.
3. the automatic paying-off device of a kind of mower according to claim 2 is characterized in that: between the perisporium of described unwrapping wire lid (2) and the periphery wall of bulge loop (21), compartment of terrain is furnished with some reinforcements (22).
4. according to the automatic paying-off device of claim 1 or 2 or 3 described a kind of mowers, it is characterized in that: the endoporus upper end of described rotating shaft (11) is provided with reinforcement (12), the perisporium of the surrounding of reinforcement (12) and rotating shaft (11) is connected and fixed, and the top of reinforcement (12) and releasing box (1) are connected and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310363427.3A CN103416148B (en) | 2013-08-20 | 2013-08-20 | Automatic paying-off device of mowing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310363427.3A CN103416148B (en) | 2013-08-20 | 2013-08-20 | Automatic paying-off device of mowing machine |
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| CN103416148A true CN103416148A (en) | 2013-12-04 |
| CN103416148B CN103416148B (en) | 2015-05-20 |
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| CN201310363427.3A Active CN103416148B (en) | 2013-08-20 | 2013-08-20 | Automatic paying-off device of mowing machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518469A (en) * | 2013-09-16 | 2014-01-22 | 苏州格园机械有限公司 | Balancing fan housing applied to paying-off box of grass trimmer |
| CN103814676A (en) * | 2014-03-11 | 2014-05-28 | 大连交通大学 | Rolling shaft-free mowing machine head with multilayer-layout cutting wires |
| CN106256180A (en) * | 2015-06-19 | 2016-12-28 | 苏州宝时得电动工具有限公司 | Grass-mowing machine |
| CN108617226A (en) * | 2017-03-23 | 2018-10-09 | 苏州宝时得电动工具有限公司 | Grass-mowing machine |
| CN110235596A (en) * | 2019-07-17 | 2019-09-17 | 苏州宇园机械有限公司 | A kind of wire-rewinding structure of grass-mowing machine releasing box |
| CN111010977A (en) * | 2014-05-30 | 2020-04-17 | 苏州宝时得电动工具有限公司 | Grass trimmer and line releasing method thereof |
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| US4817288A (en) * | 1986-03-25 | 1989-04-04 | Daijo Hirose | Cutting head for cord type mower |
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| CN2459863Y (en) * | 2000-12-04 | 2001-11-21 | 苏州太湖企业有限公司 | Automatic paying-out mechanism of mower |
| CN101553107A (en) * | 2006-11-03 | 2009-10-07 | 法布里齐奥·阿尔内托利 | Line type grass-cutting head |
| CN202455824U (en) * | 2012-02-07 | 2012-10-03 | 宁波伊司达工具有限公司 | Automatic pay-off mechanism for rotary grass cutting machine |
| CN203407208U (en) * | 2013-08-20 | 2014-01-29 | 苏州康阳机电有限公司 | Automatic pay-off device of hay mower |
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2013
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Patent Citations (6)
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| US4817288A (en) * | 1986-03-25 | 1989-04-04 | Daijo Hirose | Cutting head for cord type mower |
| US5311665A (en) * | 1990-11-16 | 1994-05-17 | Diatop Corporation | Cutting head for a cord type mower |
| CN2459863Y (en) * | 2000-12-04 | 2001-11-21 | 苏州太湖企业有限公司 | Automatic paying-out mechanism of mower |
| CN101553107A (en) * | 2006-11-03 | 2009-10-07 | 法布里齐奥·阿尔内托利 | Line type grass-cutting head |
| CN202455824U (en) * | 2012-02-07 | 2012-10-03 | 宁波伊司达工具有限公司 | Automatic pay-off mechanism for rotary grass cutting machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518469A (en) * | 2013-09-16 | 2014-01-22 | 苏州格园机械有限公司 | Balancing fan housing applied to paying-off box of grass trimmer |
| CN103814676A (en) * | 2014-03-11 | 2014-05-28 | 大连交通大学 | Rolling shaft-free mowing machine head with multilayer-layout cutting wires |
| CN103814676B (en) * | 2014-03-11 | 2016-04-13 | 大连交通大学 | A kind of line of cut multilayer arrange without Scroll mower head |
| CN111010977A (en) * | 2014-05-30 | 2020-04-17 | 苏州宝时得电动工具有限公司 | Grass trimmer and line releasing method thereof |
| CN111010977B (en) * | 2014-05-30 | 2022-08-12 | 苏州宝时得电动工具有限公司 | Grass trimmer and line releasing method thereof |
| CN106256180A (en) * | 2015-06-19 | 2016-12-28 | 苏州宝时得电动工具有限公司 | Grass-mowing machine |
| CN108617226A (en) * | 2017-03-23 | 2018-10-09 | 苏州宝时得电动工具有限公司 | Grass-mowing machine |
| CN110235596A (en) * | 2019-07-17 | 2019-09-17 | 苏州宇园机械有限公司 | A kind of wire-rewinding structure of grass-mowing machine releasing box |
| CN110235596B (en) * | 2019-07-17 | 2024-08-20 | 苏州宇园机械有限公司 | Take-up structure of pay-off box of grass trimmer |
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| CN103416148B (en) | 2015-05-20 |
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