CN103416148B - Automatic paying-off device of mowing machine - Google Patents
Automatic paying-off device of mowing machine Download PDFInfo
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- CN103416148B CN103416148B CN201310363427.3A CN201310363427A CN103416148B CN 103416148 B CN103416148 B CN 103416148B CN 201310363427 A CN201310363427 A CN 201310363427A CN 103416148 B CN103416148 B CN 103416148B
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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, particularly relate to a kind of actinobacillus device of mower.
Background technology
mower is a kind of conventional garden tool, 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 rigidity cutterhead and flexible secant two kinds, cutterhead utilizes blade to mow, flexible secant is then that the cutting force utilizing secant to produce when High Rotation Speed is mowed, blade and secant all can be worn after being used for a while, can change after blade abrasion, can shorten after secant wearing and tearing, need could effectively use when secant being pulled out in draw drum suitable active length, and the wearing and tearing of secant are compared with may be faster blade, so use flexible secant is wrapped in mowing as mowing-apparatus on draw drum time, secant to be pulled out continually, to ensure the active length of secant, keep the optimum Working of mower, so just bring larger trouble to operating personnel.
in order to solve the problem, more existing mowers have employed automatic paying-off device, this automatic paying-off device comprises releasing box, coordinate fixing unwrapping wire lid with releasing box and be arranged at releasing box with unwrapping wire lid the interior and drum that can rotate relative to releasing box and unwrapping wire lid, drum to be coordinated with the rotating shaft inside releasing box by its axis hole and both realizing in relative rotation, drum 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, 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 influence of centrifugal force leaves ratchet, and drum automatically will turn over a tooth under the pulling of the centrifugal force of secant, thus secant is lengthened, to ensure the active length of secant.Although above-mentioned automatic paying-off device structure is simple, achieves automatic unwrapping wire, in actual use procedure, also there is following defect: 1, because the axis hole of drum is all round with the rotating shaft cross section inside releasing box, there is inertia during unwrapping wire, unwrapping wire instability; 2, during work, drum contact with unwrapping wire lid down due to Action of Gravity Field, and unwrapping wire instant impact comparatively greatly, relatively rotates between drum and unwrapping wire lid, easy to wear.
Summary of the invention
the present invention seeks to: the automatic paying-off device that the mower that a kind of structure is simple, 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, fixing unwrapping wire lid is coordinated with releasing box, and to be arranged in releasing box and unwrapping wire lid and the drum that can rotate relative to releasing box and unwrapping wire lid, drum to be coordinated with the rotating shaft inside releasing box by its axis hole and both realizing in relative rotation, drum upper side is provided with ratchet, elastic stopping mechanism is provided with in described releasing box, this elastic stopping mechanism utilizes spring that scotch is pressed to ratchet, described rotating shaft is sleeve-like structure, its perisporium is at least formed with a pair elastic rib by open slot, described elastic rib outer wall has axially extended first convex tendon, the axle hole inner circle circumferential direction of described drum is evenly equipped with some axially extended second convex tendons, during unwrapping wire, elastic rib is outwards scattered under centrifugal action, 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 is convexly equipped with convex axle, convex axle periphery is interval with some outward extending auxiliary bars, the height of described auxiliary bar is less than the height of convex axle, the bulge loop corresponding with convex axle is provided with in described unwrapping wire lid, during duty, described convex axle is embedded in bulge loop, and auxiliary bar contacts with bulge loop upper surface and coordinates.The setting of such auxiliary bar and bulge loop is equivalent to increase plastic bearing, is conducive to reducing friction, alleviates unwrapping wire moment, the wearing and tearing caused drum and unwrapping wire lid because impulsive force is comparatively large, and then extends the service life of 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.In order to increase rotating shaft intensity and and releasing box between bonding strength, the endoporus upper end of described rotating shaft is provided with reinforcement, and the surrounding of reinforcement and the perisporium of rotating shaft are connected and fixed, and 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 elastic rib of rotating shaft is outwards scattered under centrifugal action, and the second convex tendon frictional fit in the first convex tendon of elastic rib and drum axis hole forms damping, improves the stability of unwrapping wire.
. during unwrapping wire of the present invention, convex axle bottom described drum is embedded in the bulge loop of unwrapping wire lid, and the auxiliary bar of convex axle periphery contacts with bulge loop upper surface and coordinates, the setting of such auxiliary bar and bulge loop is equivalent to increase plastic bearing, be conducive to reducing friction, alleviate unwrapping wire moment, wearing and tearing drum and unwrapping wire lid caused because impulsive force is comparatively large, and then extend the service life of automatic paying-off device.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is the structural representation of releasing box in the present invention;
fig. 2, Fig. 3 are the structural representation of drum in the present invention;
fig. 4 is the structural representation of unwrapping wire lid in the present invention.
wherein: 1 releasing box; 11 rotating shafts; 111 elastic rib; 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 convex 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, fixing unwrapping wire lid 2 is coordinated with releasing box 1, and to be arranged in releasing box 1 and unwrapping wire lid 2 and the drum 3 that can rotate relative to releasing box 1 and unwrapping wire lid 2, drum 3 is coordinated with the rotating shaft 11 inside releasing box 1 by its axis hole 31 and realizes both in relative rotation, drum 3 upper side is provided with ratchet 32, elastic stopping mechanism 4 is provided with 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, 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 influence of centrifugal force leaves ratchet 32, and drum 3 automatically will turn over a tooth under the pulling of the centrifugal force of secant, thus secant is lengthened, to ensure the active length of secant.
further, described rotating shaft 11 is in sleeve-like structure, its perisporium is at least formed with a pair elastic rib 111 by open slot 113, described elastic rib 111 outer wall has axially extended first convex tendon 112, the axis hole 31 inner periphery direction of described drum 3 is evenly equipped with some axially extended second convex tendons 33, and during unwrapping wire, elastic rib 111 is outwards scattered under centrifugal action, first convex tendon 112 and the second convex tendon 33 frictional fit form damping, improve the stability of unwrapping wire.
described drum 3 lower surface is convexly equipped with convex axle 34, convex 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 convex axle 34, the bulge loop 21 corresponding with convex axle 34 is provided with in described unwrapping wire lid 2, during duty, described convex axle 34 is embedded in bulge loop 21, and auxiliary bar 35 contacts with bulge loop 21 upper surface and coordinates.The setting of such auxiliary bar and bulge loop is equivalent to increase plastic bearing, is conducive to reducing friction, alleviates unwrapping wire moment, the wearing and tearing caused drum and unwrapping wire lid because impulsive force is comparatively large, and then extends the service life of 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.In order to increase rotating shaft 11 intensity and and releasing box 1 between bonding strength, the endoporus upper end of described rotating shaft 11 is provided with reinforcement 12, and the surrounding of reinforcement 12 and the perisporium of rotating shaft 11 are connected and fixed, and top and the releasing box 1 of reinforcement 12 are connected and fixed.
below be only embody rule example 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, all drop within the present invention's scope required for protection.
Claims (3)
1. the automatic paying-off device of a mower, comprise releasing box (1), fixing unwrapping wire lid (2) is coordinated with releasing box (1), and to be arranged in releasing box (1) and unwrapping wire lid (2) and the drum (3) that can rotate relative to releasing box (1) and unwrapping wire lid (2), drum (3) to be coordinated by the rotating shaft (11) of its axis hole (31) and releasing box (1) inner side and both realizing in relative rotation, drum (3) upper side is provided with ratchet (32), elastic stopping mechanism (4) is provided with 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 in sleeve-like structure, its perisporium is at least formed with a pair elastic rib (111) by open slot (113), described elastic rib (111) outer wall has axially extended first convex tendon (112), axis hole (31) the inner periphery direction of described drum (3) is evenly equipped with some axially extended second convex tendons (33), during unwrapping wire, elastic rib (111) is outwards scattered under centrifugal action, first convex tendon (112) and the second convex tendon (33) frictional fit form damping and realize stablizing unwrapping wire, described drum (3) lower surface is convexly equipped with convex axle (34), convex 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 convex axle (34), the bulge loop (21) corresponding with convex axle (34) is provided with in described unwrapping wire lid (2), during duty, described convex axle (34) is embedded in bulge loop (21), auxiliary bar (35) contacts with bulge loop (21) upper surface and coordinates.
2. the automatic paying-off device of a kind of mower according to claim 1, 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).
3. the automatic paying-off device of a kind of mower according to claim 1 and 2, it is characterized in that: the endoporus upper end of described rotating shaft (11) is provided with reinforcement (12), the surrounding of reinforcement (12) and the perisporium of rotating shaft (11) are connected and fixed, and top and the releasing box (1) of reinforcement (12) 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN103416148A CN103416148A (en) | 2013-12-04 |
| CN103416148B true CN103416148B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310363427.3A Active CN103416148B (en) | 2013-08-20 | 2013-08-20 | Automatic paying-off device of mowing machine |
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| CN (1) | CN103416148B (en) |
Families Citing this family (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 |
| 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 |
| CN105815029B (en) * | 2014-05-30 | 2020-11-17 | 苏州宝时得电动工具有限公司 | Grass trimmer |
| 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 |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817288A (en) * | 1986-03-25 | 1989-04-04 | Daijo Hirose | Cutting head for 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 | Linear 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5311665A (en) * | 1990-11-16 | 1994-05-17 | Diatop Corporation | Cutting head for a cord type mower |
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2013
- 2013-08-20 CN CN201310363427.3A patent/CN103416148B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817288A (en) * | 1986-03-25 | 1989-04-04 | Daijo Hirose | Cutting head for 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 | Linear 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 |
Also Published As
| Publication number | Publication date |
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| CN103416148A (en) | 2013-12-04 |
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