CN202455824U - Automatic pay-off mechanism for rotary grass cutting machine - Google Patents
Automatic pay-off mechanism for rotary grass cutting machine Download PDFInfo
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- CN202455824U CN202455824U CN2012200382604U CN201220038260U CN202455824U CN 202455824 U CN202455824 U CN 202455824U CN 2012200382604 U CN2012200382604 U CN 2012200382604U CN 201220038260 U CN201220038260 U CN 201220038260U CN 202455824 U CN202455824 U CN 202455824U
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- unwrapping wire
- cage knob
- line box
- box
- rope
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- 230000000694 effects Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract 3
- 238000009826 distribution Methods 0.000 description 3
- 125000004122 cyclic group Chemical class 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses an automatic pay-off mechanism for a rotary grass cutting machine and relates to an automatic pay-off mechanism for a playing rope of a grass cutting machine in a garden greening tool. The mechanism consists of a motor, a wire box, a pay-off lock button, a wire winding disc, a fixing cover, a weight balancing block, a reset spring, the playing rope and the like. In the starting process of the grass cutting machine, the pay-off lock button can outwards move under the centrifugal force effect, so the wire winding disc can rotate for a grid of ratchet relative to the wire box, a section of playing rope is released, as the rotating speed is decelerated in the rotation stop process of the grass cutting machine, the pay-off lock button gets rid of the centrifugal force and inwards moves under the effect of the reset spring, the wire winding disc rotates for a grid of ratchet again, a section of playing rope is released, the automatic pay-off operation of the playing rope can be realized in the circulation process of the starting and the rotation stopping of the grass cutting machine, the additional pay-off operation by operators is avoided, the work is reliable, and the use is simple.
Description
Technical field
The utility model relates to the automatic payingoff mechanism in a kind of frame for movement, refers in particular to the automatic payingoff mechanism of rotary mower.
Background technology
Rotary mower mainly adopts two kinds of form of a blade at present; A kind of employing one or two plastic blades as cutting appliance, another kind is to adopt the rope of beating the grass that thin nylon makes as cutting appliance, often relates to the unwrapping wire problem of the rope of beating the grass during as cutting appliance at the rope of beating the grass; The rope payingoff mechanism of beating the grass commonly used generally has three kinds; A kind of is manual unwrapping wire, and whenever by a unwrapping wire button, end pulls outward once; This unwrapping wire mode need just can be carried out under the mower stop state, uses very trouble; Another kind is semi-automatic unwrapping wire, and toward the underground unwrapping wire button that clouts, will emit automatically under centrifugal action by rope in operation process for mower, and this course of work is also cumbersome; At last a kind of is full-automatic unwrapping wire; It mainly realizes the process of automatic unwrapping wire according to the speed of mower rotating speed; Like disclosed Chinese patent number is that 00261794.3 " the automatic payingoff mechanism of mower " just disclosed a kind of after the rope wearing and tearing of beating the grass cause the mower faster rotational speed; Just can realize automatic unwrapping wire, the automatic unwrapping wire of this mechanism mainly is limited by the rotating speed speed of mower.
Summary of the invention
The utility model technical problem to be solved is to overcome the defective of prior art and provides a kind of at start-up course and the stalling automatic payingoff mechanism of the rotary mower of unwrapping wire automatically.
The technical problem of the utility model realizes through following technical scheme:
A kind of automatic payingoff mechanism of rotary mower; Comprise motor, connect fixing line box, be provided with reference column in this line box with the output shaft of motor; And on this reference column, be provided with the unwrapping wire cage knob and the wire spool of movable set successively; This unwrapping wire cage knob and wire spool are sealed in the online box by fixed cap, are wound with the rope of beating the grass on the described wire spool, and this end of beating the grass rope is worn connection box and exposed; Described unwrapping wire cage knob is pressed on the wire spool top, between unwrapping wire cage knob one end and line box, is provided with back-moving spring, and described wire spool end face is provided with the inboard location ratchet-gear wheel and location, the outside ratchet ring of concentric structure; Described unwrapping wire cage knob bottom surface is provided with first triangle hook and second triangle hook, and these two triangle hooks all can be meshed with said inboard location ratchet-gear wheel, location, outside ratchet ring; Described unwrapping wire cage knob end face is provided with slotted hole and surrounding edge structure, and adjacent back-moving spring one end also is provided with balancing weight; Reference column in the said line box is fitted in the slotted hole of said unwrapping wire cage knob; Also be provided with the guide hook in the surrounding edge structure that is fitted in said unwrapping wire cage knob in the described line box.
Described line box is provided with wire hole, and plug is equipped with lead collar in this wire hole, and said end of beating the grass rope passes said lead collar and exposes outside the online box.
Described motor output shaft is between output shaft and line box, to be provided with to connect fixing inserts with the fixed structure that is connected of line box.
Described wire spool is provided with the cable clamping interface of the rope of beating the grass.
Guide hook in the said line box is provided with four, and these four guide hooks are fitted in the surrounding edge structure of unwrapping wire cage knob end face simultaneously.
Adjacent back-moving spring one end of described unwrapping wire cage knob end face is provided with two counterweight grooves, is respectively equipped with balancing weight in these two counterweight grooves.
Described fixed cap detachable fastens on the online box, and this detachable fastening structure is on fixed cap, to extend two symmetrically arranged button buttons, and corresponding online box is provided with said and buckles the button hole that button is fastened and connected as detachable.
Compared with prior art, the utility model can be in the mower start-up course, and the unwrapping wire cage knob can outwards move under centrifugal action; Make wire spool rotate a lattice ratchet, thereby emit one section rope of beating the grass relative to the line box, in the mower stalling since rotating speed descend; The unwrapping wire cage knob breaks away from centrifugal force and also under the effect of back-moving spring, inwardly moves, and makes wire spool rotate a lattice ratchet again, from and emit one section rope of beating the grass; That is to say that in mower startup and this cyclic process of stall beating the grass rope all can be realized automatic unwrapping wire, avoided the extra unwrapping wire that carries out of operator to move; Reliable operation is used simple.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 be the utility model the stereochemical structure decomposing schematic representation.
Fig. 3 is the structural representation of line box.
Fig. 4 is the upward view of Fig. 3.
Fig. 5 is A-A cutaway view of Fig. 4.
Fig. 6 is the structural representation of unwrapping wire cage knob.
Fig. 7 is the upward view of Fig. 6.
Fig. 8 is the stereogram of Fig. 6.
Fig. 9 is the structural representation of wire spool.
Figure 10 is the upward view of Fig. 9.
Figure 11 is the vertical view of Fig. 9.
Figure 12 is the stereogram of Fig. 9.
Figure 13 is the structural representation of fixed cap.
Embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
Like Fig. 1 ~ shown in Figure 13,1. motor, 11. output shafts, 2. line box, 21. wire holes, 22. button holes, 23. reference columns, 24. guide hooks, 3. unwrapping wire cage knob, 31. surrounding edge structures, 32. first triangle hooks, 33. second triangle hooks, 34. spring grooves, 35. counterweight grooves, 36. slotted holes, 4. wire spool, location, 41. outsides ratchet ring, 42. inboard location ratchet-gear wheels, 43. cable clamping interfaces, 44. the end of a thread fixing holes, 5. fixed cap, 51. is buckled button, 6. beat the grass rope, 7. back-moving spring, 8. balancing weight, 9. lead collar, 10. inserts.
The automatic payingoff mechanism of rotary mower like Fig. 1, shown in Figure 2, mainly is installed in on rope 6 the mower moving heads as the blade cuts mode of beating the grass.
Described automatic payingoff mechanism comprises a motor 1; On the output shaft 11 of motor, be provided with and connect fixing line box 2 through inserts 10; This line box such as Fig. 3 ~ shown in Figure 5 are the cylindrical tube shape structure of lower ending opening, and the circle centre positions in the online box 2 are provided with to the reference column that extends below 23, also are provided with four guide hooks 24 that are distributed in around the reference column in the line box 2; With Fig. 4 is example, in four guide hooks 24 two to be one group be that upper and lower being symmetrical set done at the center with the reference column.The cylindrical tube shape sidewall of said line box 2 is provided with the wire hole 21 of two symmetrical distributions and the button hole 22 of two symmetrical distributions, all fills in each wire hole 21 lead collar 9 is housed.
Be provided with from bottom to top the unwrapping wire cage knob 3 and wire spool 4 of movable set on reference column 23 successively in the described line box 2.Described wire spool such as Fig. 9 ~ shown in Figure 12; Which is provided with the end of a thread fixing hole 44, just can be connected and form two ends with wire spool 4 after rope 6 the head end of will beating the grass during use passes above-mentioned the end of a thread fixing hole, follow and reel tightly according to arrow shown on the wire spool that beating the grass restricts 6 gets final product; Size according to wire spool 4; The rope of beating the grass can not be reeled too full, also is provided with cable clamping interface 43 on the wire spool, and the rope 6 of beating the grass after can be used for preventing to reel scatters; Two wire holes 21 on the just directly logical connection box 2 of two ends reserving behind the coiling expose.Described wire spool 4 end faces are provided with location, the inboard ratchet-gear wheel 42 and location, outside ratchet ring 41 of concentric structure, and this ratchet-gear wheel and ratchet ring all have 15 ratchet structures.
Described unwrapping wire cage knob 3 is like Fig. 6 ~ shown in Figure 8; It is pressed on wire spool 4 tops; This unwrapping wire cage knob is the little rectangular plate shape structure of the big end of an end, offers spring groove 34 at big end place, in establish back-moving spring 7 and line box 2 mutually pushing tow to make the elastic reset of unwrapping wire cage knob 3; The end face of unwrapping wire cage knob is provided with slotted hole 36 and surrounding edge structure 31; Slotted hole supplies the reference column 23 of line box 2 to pass connection; Four guide hooks 24 in the line box all are fitted in the said surrounding edge structure 31; Both played line box 2 and rotated and drive the purposes that unwrapping wire cage knobs 3 rotate synchronously, and can prevent that also the unwrapping wire cage knob from skidding off, can also guarantee through four guide hooks 24 that unwrapping wire cage knob 3 can move as linear reciprocation relative to line box 2 simultaneously; The big end of described unwrapping wire cage knob 3 also is provided with the counterweight groove 35 of two symmetrical structures, in each counterweight groove balancing weight 8 is installed all; Described unwrapping wire cage knob 3 bottom surfaces also are provided with two triangle hooks; First triangle hook 32 is positioned at the small end of unwrapping wire cage knob; Second triangle hook 33 is positioned at the big end of unwrapping wire cage knob; These two triangle hooks all can be meshed with location, inboard ratchet-gear wheel 42, location, the outside ratchet ring 41 on the said wire spool 4, and drive wire spool 4 rotations.
Described fixed cap 5 is shown in figure 13; Extend the elasticity button button 51 of two symmetrical distributions on it; Fixed cap is installed the openend of online box 2; And unwrapping wire cage knob 3 and wire spool 4 all sealed in the online box 2, after being in place, two button buttons 51 on the fixed cap 5 just in time are connected with line box-like one-tenth in two button holes 22 of equipped online box 2.
The automatic payingoff mechanism of this rotary mower mainly is according to relative wire spools 4 motions of unwrapping wire cage knob 3, and makes first triangle hook 32, second triangle hook 33 realize the course of work of unwrapping wire and stop with the engagement of location, inboard ratchet-gear wheel 42, location, outside ratchet ring 41 respectively.
The utility model is when normal condition; Unwrapping wire cage knob 3 receives back-moving spring 7 pushing tows; First triangle hook 32 on it is engaged on the ratchet ring 41 of location, the outside; Second triangle hook 33 is engaged on the ratchet-gear wheel 42 of inboard location, so when the mower startup made motor 1 work, the output shaft 11 of motor will drive line box 2, unwrapping wire cage knob 3 and wire spool 4 successively and do to rotate synchronously.
When being rotated further, output shaft 11 makes after the faster rotational speed; Owing to have balancing weight 8 structures on the unwrapping wire cage knob 3; So the centrifugal force that produces also increases and compression reseting spring 7 gradually, this engagement, second triangle hook 33 that makes first triangle hook 32 on the unwrapping wire cage knob 3 break away from gradually with location, outside ratchet ring 41 breaks away from the engagement of locating ratchet-gear wheel 42 with the inboard gradually, when both just separate; One lattice ratchet will take place to skid relatively with line box 2 in wire spool 4; Because rotating speed is being accelerated, and centrifugal force is continuing increase always, make that first triangle hook 32 after breaking away from can be located ratchet-gear wheel 42 engagements with the inboard again simultaneously; And second triangle hook 33 can be located ratchet ring 41 engagements with the outside; Wire spool 4 relative line boxes 2 skid and stop, and both recover synchronous rotation again, and the rope 6 of beating the grass of this moment just in time discharges the rope of beating the grass of one section about 4mm when wire spool 4 skids a ratchet.
In like manner; Close stall when mower and make that output shaft 11 rotating speeds are slack-off gradually; This moment, centrifugal force also diminished gradually, and unwrapping wire cage knob 3 is slowly mobile under the elastic force effect of back-moving spring 7 resets, and first triangle hook 32 breaks away from gradually with inboard engagement, second triangle hook 33 of locating ratchet-gear wheel 42 and breaks away from the engagement of locating ratchet ring 41 with the outside gradually; When both just separate; One lattice ratchet can take place to skid relatively with line box 2 again in wire spool 4, discharges the rope 6 of beating the grass of one section about 4mm again, output shaft 11 rotating speeds continue slack-off, when centrifugal force continues to diminish; Back-moving spring 7 elastic force that increase gradually will promote that first triangle hook 32 on the unwrapping wire cage knob 3 is engaged on the ratchet ring 41 of location, the outside again, second triangle hook 33 is engaged on again on the ratchet-gear wheel 42 of inboard location, and gets back to the periodic duty process that normal condition is prepared a new round.
In this cyclic process of the startup of above-mentioned mower and stall, wire spool 4 relative line boxes 5 have skidded twice altogether, and discharge two sections ropes 6 of beating the grass automatically, have avoided the extra unwrapping wire that carries out of operator to move, and reliable operation is used simple.
Claims (7)
1. the automatic payingoff mechanism of a rotary mower; Comprise motor (1), connect fixing line box (2), be provided with reference column (23) in this line box with the output shaft (11) of motor; And on this reference column, be provided with the unwrapping wire cage knob (3) and the wire spool (4) of movable set successively; This unwrapping wire cage knob and wire spool are sealed in the online box (2) by fixed cap (5), are wound with the rope (6) of beating the grass on the described wire spool (4), and this end of beating the grass rope is worn connection box (2) and exposed; Described unwrapping wire cage knob (3) is pressed on wire spool (4) top; Between unwrapping wire cage knob one end and line box (2), be provided with back-moving spring (7), it is characterized in that described wire spool (4) end face is provided with the inboard location ratchet-gear wheel (42) and location, the outside ratchet ring (41) of concentric structure; Described unwrapping wire cage knob (3) bottom surface is provided with first triangle hook (32) and second triangle hook (33), and these two triangle hooks all can be meshed with said inboard location ratchet-gear wheel (42), outside location ratchet ring (41); Described unwrapping wire cage knob (3) end face is provided with slotted hole (36) and surrounding edge structure (31), and adjacent back-moving spring (7) one ends also are provided with balancing weight (8); Reference column (23) in the said line box (2) is fitted in the slotted hole (36) of said unwrapping wire cage knob (3); Also be provided with the guide hook (24) in the surrounding edge structure (31) that is fitted in said unwrapping wire cage knob (3) in the described line box (2).
2. the automatic payingoff mechanism of rotary mower according to claim 1; It is characterized in that described line box (2) is provided with wire hole (21); Plug is equipped with lead collar (9) in this wire hole, and said end of beating the grass rope (6) passes said lead collar (9) and exposes outside the online box (2).
3. the automatic payingoff mechanism of rotary mower according to claim 1 is characterized in that described motor output shaft (11) is between output shaft (11) and line box (2), to be provided with to connect fixing inserts (10) with the fixed structure that is connected of line box (2).
4. the automatic payingoff mechanism of rotary mower according to claim 1 is characterized in that described wire spool (4) is provided with the cable clamping interface (43) of rope (6) of beating the grass.
5. the automatic payingoff mechanism of rotary mower according to claim 1 is characterized in that the guide hook (24) in the said line box (2) is provided with four, and these four guide hooks are fitted in the surrounding edge structure (31) of unwrapping wire cage knob (3) end face simultaneously.
6. the automatic payingoff mechanism of rotary mower according to claim 1 is characterized in that adjacent back-moving spring (7) one ends of described unwrapping wire cage knob (3) end face are provided with two counterweight grooves (35), are respectively equipped with balancing weight (8) in these two counterweight grooves.
7. according to the automatic payingoff mechanism of each described rotary mower of claim 1 ~ 6; It is characterized in that described fixed cap (5) detachable fastens on the online box (2); This detachable fastening structure is on fixed cap, to extend two symmetrically arranged button buttons (51), and corresponding online box (2) is provided with said and buckles the button hole (22) that button is fastened and connected as detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200382604U CN202455824U (en) | 2012-02-07 | 2012-02-07 | Automatic pay-off mechanism for rotary grass cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200382604U CN202455824U (en) | 2012-02-07 | 2012-02-07 | Automatic pay-off mechanism for rotary grass cutting machine |
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| Publication Number | Publication Date |
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| CN202455824U true CN202455824U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200382604U Expired - Fee Related CN202455824U (en) | 2012-02-07 | 2012-02-07 | Automatic pay-off mechanism for rotary grass cutting machine |
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| CN103416148A (en) * | 2013-08-20 | 2013-12-04 | 苏州康阳机电有限公司 | Automatic paying-off device of mowing machine |
| CN103875350A (en) * | 2012-12-20 | 2014-06-25 | 苏州宝时得电动工具有限公司 | Unwinding mechanism and grass cutting machine |
| CN104126362A (en) * | 2013-05-03 | 2014-11-05 | 百得有限公司 | Vegetation cutting device |
| CN104137693A (en) * | 2013-05-10 | 2014-11-12 | 宝时得机械（张家港）有限公司 | Grass trimmer wire spool and winding method thereof |
| CN104160820A (en) * | 2013-05-17 | 2014-11-26 | 苏州宝时得电动工具有限公司 | Working assembly, grass-cutting machine, and assembly method thereof |
| CN104663113A (en) * | 2013-11-28 | 2015-06-03 | 苏州宝时得电动工具有限公司 | Rotating grass trimmer |
| CN105075494A (en) * | 2014-05-08 | 2015-11-25 | 苏州宝时得电动工具有限公司 | Grass trimmer |
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| CN105393690A (en) * | 2014-09-15 | 2016-03-16 | 苏州宝时得电动工具有限公司 | Paying-off mechanism and grass cutting machine |
| CN105815029A (en) * | 2014-05-30 | 2016-08-03 | 苏州宝时得电动工具有限公司 | Grass trimmer |
| CN106993425A (en) * | 2016-01-22 | 2017-08-01 | 南京德朔实业有限公司 | Grass-mowing machine |
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| CN108142074A (en) * | 2016-12-06 | 2018-06-12 | 苏州宝时得电动工具有限公司 | Grass-mowing machine |
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| WO2024229586A1 (en) * | 2023-05-05 | 2024-11-14 | 陈圭惠 | Mowing disc structure |
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2012
- 2012-02-07 CN CN2012200382604U patent/CN202455824U/en not_active Expired - Fee Related
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| CN103875350A (en) * | 2012-12-20 | 2014-06-25 | 苏州宝时得电动工具有限公司 | Unwinding mechanism and grass cutting machine |
| CN104126362A (en) * | 2013-05-03 | 2014-11-05 | 百得有限公司 | Vegetation cutting device |
| CN104137693A (en) * | 2013-05-10 | 2014-11-12 | 宝时得机械（张家港）有限公司 | Grass trimmer wire spool and winding method thereof |
| CN104160820A (en) * | 2013-05-17 | 2014-11-26 | 苏州宝时得电动工具有限公司 | Working assembly, grass-cutting machine, and assembly method thereof |
| CN103416148A (en) * | 2013-08-20 | 2013-12-04 | 苏州康阳机电有限公司 | Automatic paying-off device of mowing machine |
| CN103416148B (en) * | 2013-08-20 | 2015-05-20 | 苏州康阳机电有限公司 | Automatic paying-off device of mowing machine |
| CN104663113A (en) * | 2013-11-28 | 2015-06-03 | 苏州宝时得电动工具有限公司 | Rotating grass trimmer |
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| CN105359698A (en) * | 2014-08-14 | 2016-03-02 | 罗伯特·博世有限公司 | Thread cutter device |
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| CN105393690B (en) * | 2014-09-15 | 2018-06-15 | 苏州宝时得电动工具有限公司 | Payingoff mechanism and grass-mowing machine |
| CN105393690A (en) * | 2014-09-15 | 2016-03-16 | 苏州宝时得电动工具有限公司 | Paying-off mechanism and grass cutting machine |
| CN106993425A (en) * | 2016-01-22 | 2017-08-01 | 南京德朔实业有限公司 | Grass-mowing machine |
| CN108135128A (en) * | 2016-01-22 | 2018-06-08 | 南京德朔实业有限公司 | Grass-mowing machine and its operating method and control method |
| WO2018077231A1 (en) * | 2016-10-28 | 2018-05-03 | 苏州宝时得电动工具有限公司 | Grass trimmer and line release method thereof |
| CN108142074A (en) * | 2016-12-06 | 2018-06-12 | 苏州宝时得电动工具有限公司 | Grass-mowing machine |
| CN107926265B (en) * | 2017-07-31 | 2021-06-22 | 上海交通大学 | A fast and automatic thread-cutting head mechanism |
| CN107926265A (en) * | 2017-07-31 | 2018-04-20 | 上海交通大学 | A kind of fast automatic outlet moving head mechanism |
| SE1850147A1 (en) * | 2018-02-12 | 2019-08-13 | Husqvarna Ab | Trimmer head and trimmer |
| US12114596B2 (en) | 2018-02-12 | 2024-10-15 | Husqvarna Ab | Trimmer head and trimmer |
| CN111758381A (en) * | 2020-07-28 | 2020-10-13 | 扬州大学 | A wire cutting device for harvesting leafy vegetables |
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Address after: 315171, Ningbo, Zhejiang Province, Yinzhou District Town, Ji Wang Industrial Park, No. 307 East Road, cloth Patentee after: Ningbo yisida environmental protection machinery Limited by Share Ltd Address before: 315176 Zhejiang province Ningbo city Yinzhou District town water village turnip Patentee before: Ningbo East Tool Co., Ltd. |
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