CN103404296B - Weeder - Google Patents
Weeder Download PDFInfo
- Publication number
- CN103404296B CN103404296B CN201310350848.2A CN201310350848A CN103404296B CN 103404296 B CN103404296 B CN 103404296B CN 201310350848 A CN201310350848 A CN 201310350848A CN 103404296 B CN103404296 B CN 103404296B
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- fixed
- weeder
- bevel gear
- thrust bearing
- drive link
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Abstract
A weeder comprises a long pole body. One end of the long pole body is provided with a drive unit, and the other end of the long pole body is provided with a transmission system. The long pole body is hollow. A drive pole is connected to the drive unit and the transmission system. A rotary circular blade is fixed to the tail end of the transmission system. A semicircular shield is fixed to the rear of the circular blade. One end of the drive pole, passing the long pole body, is rotatably fixed in the long pole body through a ball bearing. A drive bevel gear is fixed to the tail end of the drive pole. A transmission pole is arranged in a shell of the transmission system. A transmission bevel gear in meshing transmission with the drive bevel gear is fixed to the transmission pole. The weeder is simple in structure, convenient to assemble and disassemble, fast and efficient, and the weeding process of the weeder is stable.
Description
Technical field
The present invention relates to the technical field of weeding, relate in particular to a kind of quick, stable, efficient weeder.
Background technology
Current invention multiple types of tools is to substitute effective but may remove the weeds in garden and lawn by poisonous chemicals.This type of instrument comprises Weeding tool, extirpator, the device that digs up the roots, strand straw articles and weed extractor.Every kind of instrument all has different advantages, and it is conventionally according to different vegetation types and place character, and for example hardness and compaction, be applied to different weeding situations.
Existing weeder is mainly divided into dynamical type weeder, and Manual-type weeding machine, dynamical type weeder is that engine is installed on weeder, utilize engine to drive cutter unit rotational, therefore when user promotes weeder on lawn, the action that just can automatically mow, even if weeder does not move, this engine and cutter unit still keep operating condition.Manual-type weeding machine does not have the power resources such as engine, it is while promoting weeder by user, wheel or friction pulley are rubbed and rolling on lawn, recycling wheel or friction pulley drive the cutter unit rotational of weeder bottom simultaneously, therefore only have in the time that user promotes weeder forward, the action of just mowing of its cutter unit, if weeder transfixion, its cutter unit also can not rotate.
But existing Manual-type weeding machine, it is the rotating shaft that is combined with branched related rotation in machine, between each rotating shaft, be provided with the external gear of mutual transmission, and be combined with respectively multiple external gears at wheel and rotating shaft, so by multiple external gears and the layer upon layer of transmission of rotating shaft, just can make cutter unit rotational, so cause Manual-type weeding machine structural volume huge, and its transmission mechanism is quite complicated, each position part easily damage causes the upper quite trouble of maintenance, and manufacture and maintenance cost are high.Moreover the cutter of existing Manual-type weeding machine is often short of to be adjusted and removable structural design, the trouble that causes user to keep in repair.
For this reason, designer of the present invention, by concentrating on studies and designing, is comprehensively engaged in for a long time experience and the achievement of related industry for many years, and research and design goes out a kind of weeder, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of weeder, it is simple in structure, and handling are convenient, rapidly and efficiently, can ensure stablizing in weeding process.
For achieving the above object, the invention discloses a kind of weeder, it is characterized in that: the body that this weeder comprises elongated rod shape, one end of described body is provided with driver element, the other end is provided with transmission system, and described body is hollow form, and a driving rod connects described driver element and transmission system, the end of described transmission system is fixed with rotatable circular shear blade, and the rear of described circular shear blade is fixed with the guard shield of semicircle annular; Run through rotatable being fixed in body in one end of the driving rod of body, one drives bevel gear to be fixed on the end of described driving rod; In the shell of described transmission system, be provided with a drive link, the rear end of described drive link is fixed in shell by one first thrust bearing is rotatable, front end stretches out described shell, its middle part is fixed in shell by one second thrust bearing is rotatable, and the external part of described drive link is fixed with described circular shear blade; Described drive link be fixed with in the front of described the first thrust bearing one with the drive bevel gear of described driving bevel gear engaged transmission.
Wherein: the middle part of described body is provided with the handle on body that is fixed on that can move forward and backward, and described handle is U-shaped, and its two ends are all overlapped Anti-slip cover.
Wherein: the surface of described Anti-slip cover is provided with anti-skid structure, described anti-skid structure is multiple semi-cylindrical hills or tapered protrusion.
Wherein: optionally, described the first thrust bearing and the second thrust bearing all comprise interior ring, outer shroud, at the multiple taper needle rollers that roll between interior ring and outer shroud and taper needle roller is remained on to the retainer between described inner and outer ring.
Wherein: between described the first thrust bearing and drive bevel gear, be provided with thrust part, described thrust part is made up of elastomeric material, described thrust part stretches in the groove of described drive bevel gear, thereby by the elastic force effect of elastomeric material, to the default elastic compression power of drive bevel gear, avoid the swing of drive link in the time of High Rotation Speed and move forward and backward.
Wherein: between described the first thrust bearing and thrust part, be provided with a waveform sheet spring.
Wherein: the inner edge of described thrust part is provided with multiple cushion holes.
By said structure, weeder of the present invention has been realized following technique effect:
1, hand-held weeding, rotary speed is high, and weeding ratio is high;
2, the thrust bearing arranging by front and back, can realize centering accurately, has avoided bias;
3, on drive disk assembly, be provided with the parts of realizing elasticity pretightning force, in the time of High Rotation Speed, ensured the compression of the continuous and drive link of driving force, avoided the swing of drive link in rotary course;
4, blade front and back end all compresses by elastomeric element, has ensured the fixing of blade, has avoided the swing of blade.
The present invention will be further described in detail by the following specific embodiments, and will be more apparent and obvious to understand further combined with the description of the drawings.
Brief description of the drawings
Fig. 1 has shown the application schematic diagram of weeder of the present invention.
Fig. 2 has shown the cutaway view of transmission system of the present invention.
Fig. 3 shown Fig. 2 A-A to schematic diagram.
Reference numeral:
101: body; 102: driver element; 103: transmission system; 104: circular shear blade; 105: guard shield; 106: handle; 107: Anti-slip cover; 108: handle; 11: driving rod; 12: ball bearing; 13: external screw thread; 14: drive bevel gear; 15: cone tooth; 16: locating ring; 17: drive link; 18: the first thrust bearings; 19: the second thrust bearings; 20: drive bevel gear; 201: pin-and-hole; 21: thrust part; 211 cushion holes; 22: waveform sheet spring; 23: prelocalization ring; 24: push part; 25: hold-down nut; 26: spring bearer plate; 27: pad; 28: spacer.
embodiment
Referring to Fig. 1, show weeder of the present invention.
The body 101 that this weeder comprises elongated rod shape, one end of described body 101 is provided with driver element 102, the other end is provided with transmission system 103, described body 101 is hollow form, one driving rod connects described driver element 102 and transmission system 103, with by the transmission of power of driver element to described transmission system 103, the end of described transmission system 103 is fixed with rotatable circular shear blade 104, the rear of described circular shear blade 104 is fixed with the guard shield 105 of semicircle annular.
The middle part of described body 101 is provided with the handle 106 on body that is fixed on that can move forward and backward, described handle 106 is U-shaped, and its two ends are all overlapped Anti-slip cover 107, and the surface of described Anti-slip cover 107 is provided with anti-skid structure, optionally, described anti-skid structure is multiple semi-cylindrical hills or tapered protrusion.
Optionally, described driver element 102 comprises drive motors, and the output shaft of drive motors is connected to described driving rod by shaft coupling.
Referring to Fig. 2 and Fig. 3, show transmission system of the present invention.
The one end that runs through the driving rod 11 of body 101 is fixed in body 101 by ball bearing 12 is rotatable, its end is provided with external screw thread 13, one drives bevel gear 14 to be fixed on the end of described driving rod, in it, be provided with described external screw thread 13 and engage fixing internal thread, on described driving bevel gear 14, there are multiple cone teeth 15, one locating ring 16, the front end of described locating ring 16 is resisted against the rear end that drives bevel gear 14, front end is resisted against the flange of described driving rod 11, thereby by the selection of locating ring 16, capable of regulating drives the front and back position of bevel gear 14, optionally, described locating ring 16 is made up of elastomeric material, preferably made by phenolic resins.
In the shell of described transmission system 103, be provided with a drive link 17, the rear end of described drive link 17 is fixed in shell by one first thrust bearing 18 is rotatable, front end stretches out described shell, its middle part is fixed in shell by one second thrust bearing 19 is rotatable, the external part of described drive link 17 is fixed with described circular shear blade 104, the end of drive link 17 is provided with external screw thread, one hold-down nut 25 is engaged in described external screw thread, between described fixing spiral shell 25 and described circular shear blade 104, be provided with spring bearer plate 26, the outer rim of described spring bearer plate 26 is extended and keeps at a certain distance away towards circular shear blade 104, broken end enters when avoiding weeding.
Described drive link 17 be fixed with in the front of described the first thrust bearing 18 one with the drive bevel gear 20 of described driving bevel gear 14 engaged transmission, in described drive bevel gear 20, be provided with axially extended pin-and-hole 201, be connected and fixed on described drive link 17 by pin, thus, the rotation of driving rod 11 can drive described drive link 17 to rotate, further drive described blade 104 High Rotation Speeds, realize weeding of the present invention.
Optionally, described the first thrust bearing 18 and the second thrust bearing 19 all comprise interior ring, outer shroud, at the multiple taper needle rollers that roll between interior ring and outer shroud and taper needle roller is remained on to the retainer between described inner and outer ring.
During due to High Rotation Speed, drive link easily swings, therefore, between described first thrust bearing 18 one end and drive bevel gear 20, be provided with thrust part 21, described thrust part 21 is made up of elastomeric material (such as rubber, phenolic resins), and described thrust part 21 stretches in the groove of described drive bevel gear 20, thereby by the elastic force effect of elastomeric material, to the default elastic compression power of drive bevel gear 20, avoid the swing of drive link 17 in the time of High Rotation Speed.
For further improving elastic compression effect, between described the first thrust bearing 18 and thrust part 21, be provided with a waveform sheet spring 22, described waveform sheet spring 22 can carry out pretension under impaction state, even if drive link 17 is moved around time in weeding, but still can realize enough elastic compression power, to avoid the inefficacy of thrust part 21.
Due in High Rotation Speed, between drive link 17 and drive bevel gear 20, easily produce heat, cause temperature to raise, therefore be provided with multiple cushion holes 211 at the inner edge of described thrust part 21, to reduce contact area, improve ventilation effect, to provide cooling effect when the High Rotation Speed, avoid the rising of temperature.
The outer shroud front end of described the second thrust bearing 19 positions by a spacer 28, interior ring front end positions by a prelocalization ring 23, what between the outer rim of described prelocalization ring 23 and described blade, be also provided with that an elastomeric material makes pushes part 24, between described blade 104 and spring bearer plate 26, is also provided with a pad.
Known by foregoing description, weed control equipment of the present invention has the following advantages:
1, hand-held weeding, rotary speed is high, and weeding ratio is high;
2, the thrust bearing arranging by front and back, can realize centering accurately, has avoided bias;
3, on drive disk assembly, be provided with the parts of realizing elasticity pretightning force, in the time of High Rotation Speed, ensured the compression of the continuous and drive link of driving force, avoided the swing of drive link in rotary course;
4, blade front and back end all compresses by elastomeric element, has ensured the fixing of blade, has avoided the swing of blade.
It is evident that above description and to record be only for example instead of in order to limit disclosure of the present invention, application or use.Although described in an embodiment and be described in the drawings embodiment, but the present invention does not limit by accompanying drawing example and the optimal mode thought at present of conduct of describing in an embodiment to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment that falls into specification above and appended claim.
Claims (6)
1. a weeder, it is characterized in that: the body that this weeder comprises elongated rod shape, one end of described body is provided with driver element, the other end is provided with transmission system, described body is hollow form, one driving rod connects described driver element and transmission system, and the end of described transmission system is fixed with rotatable circular shear blade, and the rear of described circular shear blade is fixed with the guard shield of semicircle annular; Run through rotatable being fixed in body in one end of the driving rod of body, one drives bevel gear to be fixed on the end of described driving rod; In the shell of described transmission system, be provided with a drive link, the rear end of described drive link is fixed in shell by one first thrust bearing is rotatable, front end stretches out described shell, the middle part of described drive link is fixed in shell by one second thrust bearing is rotatable, and the external part of described drive link is fixed with described circular shear blade; Described drive link be fixed with in the front of described the first thrust bearing one with the drive bevel gear of described driving bevel gear engaged transmission, between described the first thrust bearing and drive bevel gear, be provided with thrust part, described thrust part is made up of elastomeric material, described thrust part stretches in the groove of described drive bevel gear, thereby by the elastic force effect of elastomeric material, to the default elastic compression power of drive bevel gear, avoid the swing of drive link in the time of High Rotation Speed and move forward and backward.
2. weeder as claimed in claim 1, is characterized in that: the middle part of described body is provided with the handle on body that is fixed on that can move forward and backward, and described handle is U-shaped, and its two ends are all overlapped Anti-slip cover.
3. weeder as claimed in claim 2, is characterized in that: the surface of described Anti-slip cover is provided with anti-skid structure, and described anti-skid structure is multiple semi-cylindrical hills or tapered protrusion.
4. weeder as claimed in claim 1, is characterized in that: described the first thrust bearing and the second thrust bearing all comprise interior ring, outer shroud, at the multiple taper needle rollers that roll between interior ring and outer shroud and taper needle roller is remained on to the retainer between described inner and outer ring.
5. weeder as claimed in claim 1, is characterized in that: between described the first thrust bearing and thrust part, be provided with a waveform sheet spring.
6. weeder as claimed in claim 1, is characterized in that: the inner edge of described thrust part is provided with multiple cushion holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350848.2A CN103404296B (en) | 2013-08-13 | 2013-08-13 | Weeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350848.2A CN103404296B (en) | 2013-08-13 | 2013-08-13 | Weeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103404296A CN103404296A (en) | 2013-11-27 |
| CN103404296B true CN103404296B (en) | 2014-12-10 |
Family
ID=49597386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310350848.2A Active CN103404296B (en) | 2013-08-13 | 2013-08-13 | Weeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103404296B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111418472B (en) * | 2020-04-15 | 2021-12-03 | 杭州羽豪科技有限公司 | Portable mower |
| CN112544207B (en) * | 2020-12-08 | 2022-03-08 | 台州金斯顿机械科技有限公司 | Telescopic brush cutter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002253027A (en) * | 2001-02-27 | 2002-09-10 | Honda Motor Co Ltd | Driving shaft structure of bush cutter |
| JP4090484B2 (en) * | 2005-12-12 | 2008-05-28 | 有限会社丸岩商会 | Folding attachment and portable brush cutter equipped with the same |
| DE102007052944A1 (en) * | 2007-11-07 | 2009-05-14 | Andreas Stihl Ag & Co. Kg | Hand-held implement |
| JP4883328B2 (en) * | 2009-10-26 | 2012-02-22 | 株式会社ニッカリ | Mowing blade shaft fall prevention structure |
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2013
- 2013-08-13 CN CN201310350848.2A patent/CN103404296B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103404296A (en) | 2013-11-27 |
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