CN207836614U - Grass trimmer rotary cutter and the portable grass trimmer for using the tool - Google Patents
Grass trimmer rotary cutter and the portable grass trimmer for using the tool Download PDFInfo
- Publication number
- CN207836614U CN207836614U CN201820061639.4U CN201820061639U CN207836614U CN 207836614 U CN207836614 U CN 207836614U CN 201820061639 U CN201820061639 U CN 201820061639U CN 207836614 U CN207836614 U CN 207836614U
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- Prior art keywords
- cutting
- tool
- plate
- installation axle
- grass trimmer
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- 238000005520 cutting process Methods 0.000 claims abstract description 353
- 238000009434 installation Methods 0.000 claims abstract description 116
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- 238000003825 pressing Methods 0.000 claims description 18
- 229920001971 elastomer Polymers 0.000 claims description 14
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- 238000009826 distribution Methods 0.000 claims description 7
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- 238000004804 winding Methods 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 17
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000004677 Nylon Substances 0.000 description 50
- 229920001778 nylon Polymers 0.000 description 50
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- 238000009333 weeding Methods 0.000 description 1
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- Harvester Elements (AREA)
Abstract
The utility model discloses the portable grass trimmers of a kind of grass trimmer rotary cutter and the use tool, belong to garden instrument field, cleaning for weeds during afforestation, it includes at least cutting off tool installation axle, the cutting off tool rotated around center axis is installed in the cutting off tool installation axle, the guide part material relatively rotated by central part A with cutting off tool installation axle is installed below the cutting off tool, central part A is connect with guide part edge edge A by surfaces of revolution A, surfaces of revolution A, which is rotated by crest line A around cutting off tool installation axle central axis, to be formed, and crest line A is located at the member outside around the rotation of cutting off tool installation axle in addition to cutting off tool.In view of above-mentioned technical proposal, the utility model is capable of providing a kind of grass trimmer rotary cutter that is safe efficient, being conveniently adjusted maintenance and the portable grass trimmer using the tool.
Description
Technical field
The utility model belongs to garden instrument field, specifically, more particularly to a kind of grass trimmer rotary cutter and making
With the portable grass trimmer of the tool.
Background technology
Common tool of the portable type power mower as the weeds for removing field growing.On this grass trimmer, by small
The rotary power that h type engine h generates is passed on the rotary cutter of operation pipe head end equipment, and operator waves operation pipe and carries out institute
The weeding operation needed.As rotary cutter, the general nylon rope harder using quality, under high speed rotation effect by weeds into
Row cutting.
As shown in Figure 19 and 20, equipped with the engine as motive drive source on one end of the operation pipe 101 of grass trimmer（Not
Diagram）, so that the driving rope 102 being inserted in operation pipe 101 is rotated, power transmission to the front end of operation pipe 101.In operation pipe
101 front end, the rotary power of engine are passed to the cutting off tool installation axle 103 being connected with driving rope 102.Cutting off tool is pacified
Dress axis 103 can be rotated freely by the bearing 104 installed on operation pipe 101 relative to operation pipe 101.The inner ring of bearing 104 and
105 assembly and connection of rotary cutter installing component.The other end group of cutting off tool installation axle 103 has cutting off tool pressing plate 108, rotation
Group has aftermentioned cutting off tool maintaining part material 107 and nylon rope between Cutting tool installation manner component 105 and cutting off tool pressing plate 108
Reel 106.In one end of cutting off tool pressing plate 108, the inner ring of bearing 109 and the periphery of cutting off tool installation axle 103 connect group
Dress, bearing 109, cutting off tool pressing plate 108, cutting off tool maintaining part material 107, nylon rope reel 106, rotary cutter installing component
105 are fastened to by bolt 110 in cutting off tool installation axle 103, are fixed on operation pipe 101.So cutting off tool pressing plate
108, cutting off tool maintaining part material 107, nylon rope reel 106, rotary cutter installing component 105, bolt 110 and cutting off tool
Installation axle coaxial rotating.The nylon rope cutting off tool 113 that cutting off tool maintaining part material 107 is drawn, it is square radially outward from rotary shaft
To being brought out, weeds 118 are cut off by the front end of nylon rope cutting off tool 113.Such as the diameter of nylon rope be 2.2 ~
3mm, the distance from rotation center to front end are 180mm, and rotary speed can reach 5000 ~ 8000rpm, and front end can revolve at a high speed
Turn, there is sufficient kinetic energy on cutting off soft weeds.
Nylon rope reel 106 is accommodated with inside cutting off tool maintaining part material 107, peripheral wall there are multiple holes 116, a root long
The longer direction of nylon rope passes through this some holes 116, is exported to the nylon rope outside above-mentioned peripheral wall and twines to above-mentioned nylon rope reel
On 106 and maintain.By this operation, actually 2 nylon ropes are fixed to nylon rope reel at its beginning by solid
On 106, so that it may suitably wind very much state to be formed.2 nylon ropes are respectively from the cylinder of above-mentioned cutting off tool maintaining part material 107
Shape peripheral wall portion and its diametric(al) opposite direction have exports to outside in the nylon rope export mouth 117 that open at 2, is exported like this
Part front end side, it will be able to functioned as nylon rope cutting off tool.By making nylon rope reel 106 and cutting off tool
107 relative rotation of maintaining part material can adjust the length of the nylon rope cutting off tool 113 derived from the above-mentioned nylon rope export mouth 117
Degree.
In above-mentioned grass trimmer rotary cutter, with the axis of rotation of cutting off tool maintaining part material 107（With nylon rope cutoff tool
The axis of rotation of tool 113 is identical）Centered on support can the discoid guide part that be rotated relative to cutting off tool maintaining part material 107
Part 112, the mounting portion material 111 by being assembled in 109 outer ring of bearing are set up, and the outer diameter of discoid guiding parts 112 compares cutoff tool
The maximum gauge for having maintaining part material 107 is big.When grass trimmer operates, since discoid guiding parts 112 is relative to cutting off tool
Maintaining part material 107 has relative to the function that can be rotated, when discoid guiding parts 112 contacts ground and can make guiding with ground friction
Material opposite cutting off tool maintaining part material 107 equipped with nylon rope cutting off tool 113 in portion's is in almost static state, in this way can be with
Reduce the spin friction loading on ground and cutting off tool maintaining part material 107, and can prevent the gravelstone except weeds etc. from dispersing.
And since the position of nylon rope cut-out weeds is limited at the outside of 112 maximum gauge of discoid guiding parts, also may be used in this way
It causes to twine grass with the position for preventing nylon rope cutting off tool close from rotation center and weeds contact.
It is had the following problems in above structure：One, operate in nylon rope might not with cutting off tool installation axle 103
The plane internal rotation of central axis upright can also contact sometimes with 112 outer edge of discoid guiding parts, be revolved in nylon rope high speed
Contact, abrasion have cut-off possibility in the case of turning.
Two, bolt 110 in the prior art protrudes from discoid guiding parts 112 and rotates, in discoid guiding parts
In the state of 112 ground connection remains stationaries, bolt 110 remains unchanged can carry out dispersing for friction generation sand with ground；Moreover, installation
Portion's material 111 is outstanding relative to discoid guiding parts 112 and outer diameter is less than discoid guiding parts 112, in ground connection process
In, frictional force when discoid guiding parts 112 being allowed to be in almost static is insufficient.
Three, the gap between discoid guiding parts 112 in the prior art and cutting off tool maintaining part material 107 can invade
Weeds, sand etc. interfere the static of discoid guiding parts 112.
Four, when there is the case where abrasion of nylon rope cutting off tool 113,110 nylon can only be realized by loosering a bolt
Rope reel 106 and 107 relative rotation of cutting off tool maintaining part material, after the completion of adjustment, tighten bolt 110；
Five, the space of 113 top of discoid guiding parts 112 and nylon rope cutting off tool（101 side of operation pipe）Do not hide
If block material, when operator's swinging operation 101 operation of pipe, the stalk of weeds does not run to discoid guiding parts 112 all
The outside of maximum outside diameter cannot negate the possibility for the progress cutting operation of nylon rope cutting off tool 113 for not having inner side.
In addition, when swinging operation pipe 101, small stone etc. can be raised to the top of discoid guiding parts 112, and discoid guiding is entered
The inside of the maximum outside diameter of component 112, there are the rotary motions of nylon rope, and small stone etc. to be promoted to disperse not having to 101 side of operation pipe
There is the danger in the space of shelter；
Even if six, the position that nylon rope cutting off tool 113 is mowed is limited to the maximum gauge of discoid guiding parts 112
Outside left is applied to the reaction force of the cut-out loading value of place of incision, is the cutting off tool from nylon rope cutting off tool 113
What the extending port of maintaining part material 107 nearby generated, the breakage of nylon rope occurs near above-mentioned extending port, it is possible to damage durable
Property.
Seven, cutting off tool maintaining part material 107 is to be forced rotation by the effect of motive drive source.Contact in operation
If the clothes, body of operating personnel, has so that operating personnel are injured, threaten the risk of operating personnel's personal safety.
Utility model content
It mows the purpose of this utility model is to provide a kind of grass trimmer rotary cutter and using the portable of the tool
Machine can solve the problems, such as background technology, provide a kind of grass trimmer rotation that is safe efficient, being conveniently adjusted maintenance
Rotor has and uses the portable grass trimmer of the tool.
In order to achieve the above objectives, the utility model is achieved through the following technical solutions：
Grass trimmer rotary cutter described in the utility model includes at least cutting off tool installation axle, the cutoff tool
The cutting off tool rotated around center axis is installed in tool installation axle, is equipped with below the cutting off tool and cutting off tool
The guide part material that installation axle is relatively rotated by central part A, central part A are connect with guide part edge edge A by surfaces of revolution A,
Surfaces of revolution A, which is rotated by crest line A around cutting off tool installation axle central axis, to be formed, and crest line A is located in addition to cutting off tool
Around the member outside of cutting off tool installation axle rotation.
Further speaking, it is equipped with cutting off tool installation axle between cutting off tool described in the utility model and guide part material
The notch section of the round plate A of rotation, round plate A include the bottom surface rectangular with the central axis X-X of cutting off tool, and with cut
The parallel barrel surface of rotary shaft of breaking tool, the notch section with guide part edge edge A is opposed keeps certain interval.
Grass trimmer rotary cutter described in the utility model, including cutting off tool installation axle, the cutting off tool peace
The cutting off tool reel B rotated around center axis is installed on dress axis, is wound on cutting off tool reel B and maintains cutoff tool
Tool, the cutting tool maintaining part material with cutting off tool reel B identical central axis is covered in the periphery of cutting off tool reel B；
The guide part material relatively rotated around cutting off tool installation axle is installed below cutting tool maintaining part material, cutting off tool with
The round plate B rotated with cutting off tool installation axle is equipped between guide part material；It is provided with energy on the cutting tool maintaining part material
The cutter of enough extraction cutting off tools stretches out hole, and cutter stretches out hole and is located on cylindrical wall.
Further speaking, the guide part material described in the utility model includes being rotated around cutting off tool installation axle central axis
Central part B, guide part edge edge B, central part B connect by surfaces of revolution B with guide part edge edge B, surfaces of revolution B be by
Crest line A, which is rotated around above-mentioned central axis, to be formed, and above-mentioned crest line be located in addition to cutting off tool around cutting off tool installation axle
The member outside of rotation.
Further speaking, the cutting tool maintaining part material described in the utility model further includes upper cover, and group has guarantor in upper cover
Hold portion's ontology, the cutting off tool reel B that is wound with cutting off tool and maintains and prominent from cutting off tool reel B cylinders outstanding
Go out portion, is equipped with by pressing spring between upper cover and cutting off tool reel B；The bottom of upper cover, cutting off tool reel B upper end and
Lower end, maintaining part ontology bottom wall on be equipped with the reciprocal latch structure being distributed around cutting off tool installation axle central axis, pass through percussion
Cylinder protruding portion makes upper cover, bottom wall and the engaging of the cutting off tool upper ends reel B or lower end and detaches, to realize that cutting off tool is stretched
Go out the adjustment of length.
Further speaking, the cutter that is located at described in the utility model stretches out above hole to form cutting tool maintaining part
The cover body portion of a part for material, and the outer diameter in cover body portion is greater than or equal to the outer diameter of guide part material；The outer of hole is stretched out in cutter
The intersection of the upper vertical of side and round plate B is provided with the plate that only trip stops, and is equipped with the corresponding position for the plate that only trip stops symmetrical therewith
The reversed plate that only trip stops being arranged；Be provided in the cover body portion with the reversed plate that only trip stops of same shape in round plate B and position,
Only trip stop plate.
Further speaking, a part for cover body portion described in the utility model connects on the outside of above-mentioned round plate B, have and
The wall plate of round plate B being located at below cutting off tool is in conplane base plate, and the base plate is above-mentioned cover body
The part folded between plate and the reversed plate that only trip stops of only trip stopping in portion, the wall plate are the plates and reversed of only trip stopping on round plate B
The part only trip stopped folded by plate；The identical plate that only trip stops in the position and shape that are distributed on the round plate B, cover body portion, it is reversed only
The plate that trip stops continuously connects.
Further speaking, plate only is trip stopped by cutting off tool installation axle central axis and cylindrical wall described in the utility model
Between position start, away from the arcuation shape that cutting off tool installation axle central axial direction terminates, the song of arcuation shape
Rate center is located at the side opposite with arcuation shape direction of rotation, and radius of curvature is left cutting off tool with the center of curvature and installed
Axis center axis continuously becomes smaller.
Further speaking, there are gap, institutes between the cover body portion described in the utility model and cutting tool maintaining part material
State cover body portion, round plate B, the plate that only trip stops forms air holes with the reversed plate that only trip stops in periphery.
Further speaking, it is equipped in cutting off tool installation axle on cutting off tool installation axle described in the utility model
The protection disk of mandrel line rotation, protects the edge part of disk to be made of elastomer, and the outer diameter that the elastomer is constituted is more than round plate A
Outer diameter.
A kind of portable grass trimmer of the installation grass trimmer rotary cutter, the portable grass trimmer includes at least dynamic
Power apparatus, drive shaft, the drive shaft are located at the inside of operation pipe and are connect with power plant, the drive shaft and cutting off tool
Axis connection is installed.
Compared with prior art, the utility model has the beneficial effects that：
1, when the utility model can reduce cutting off tool and guide part edge portion contacts based on nylon rope material
The abrasion of generation, and then the cut-off possibility of cutting off tool is generated, improve the service life of cutting off tool.
2, the sandstone that the utility model can avoid bolt that friction generation occurs with ground disperses, and improves discoid guide part
The frictional force and stationary state of material and ground.
3, the utility model can prevent the discoid guide part material of the intrusion such as weeds, sandstone of cut-out and cutting off tool from keeping
Between portion's material, the possibility that avoids above-mentioned material from interfering guide part material static.
4, the utility model improves the flexibility of cutting off tool adjustment length after wearing, and it is difficult to reduce adjusting
Degree.
5, the utility model increases protective device above guide part material and cutting off tool, can avoid cutting off tool
Promote handstone etc. to disperse in the space that do not blocked to operation pipe under high speed rotation, reduce operating personnel's personal safety therefore by
To the possibility of threat.
6, the utility model can reduce the possibility that the cutting off tool near guide part material extending port is worn, and improve
The durability of cutting off tool at the position.
7, the utility model can reduce operating personnel caused by cutting off tool maintaining part under external force high speed rotation
Clothes scratch, the potential threats such as body is injured, improve the safety of equipment.
Description of the drawings
Fig. 1 is the structural schematic diagram one of the utility model.
Fig. 2 is the structural schematic diagram of I-I in Fig. 1.
Fig. 3 is the structural schematic diagram two of the utility model.
Fig. 4 is the structural schematic diagram of the parts A-A in Fig. 3.
Fig. 5 is the structural schematic diagram of the parts B-B in Fig. 3.
Fig. 6 is the structural schematic diagram of cutting off tool reel B in the utility model.
Fig. 7 is the structural schematic diagram of upper cover in the utility model.
Fig. 8 is the structural schematic diagram of bottom wall claw in the utility model.
Fig. 9 is the structural schematic diagram of cutting off tool reel B in the utility model.
Figure 10 is the adjustment structural schematic diagram of cutting tool in the utility model.
Figure 11 is the adjustment process schematic of cutting tool in the utility model.
Figure 12 is the structural schematic diagram of embodiment 3 in the utility model.
Figure 13 is the structural schematic diagram of the parts C-C in Figure 12.
Figure 14 is the structural schematic diagram of the parts A-A in Figure 13.
Figure 15 is the structural schematic diagram three of the utility model.
Figure 16 is the structural schematic diagram of cover body.
Figure 17 is the structural schematic diagram four of the utility model.
Figure 18 is the structural schematic diagram five of the utility model.
Figure 19 is the structural schematic diagram of the prior art.
Figure 20 is the structural schematic diagram of the parts I-I in Figure 19.
In figure：1, operation pipe；2, drive shaft；3, cutting off tool installation axle；4, bearing A；5, cutting off tool mounting portion；6, it cuts
Breaking has reel A；7, cutting off tool maintaining part；8, cutting off tool pressing plate；9, bearing B；10, bolt A；12, guide part material；12-
1, central part A；12-2, guide part edge edge A；12-3, crest line A；12-4, surfaces of revolution A；13, cutting off tool；15, round plate
A；16, reel mounting hole；17, cutter export mouth；18, weeds；19, notch section；19-1, bottom surface；19-2, barrel surface；20, it cuts
Cutter maintaining part material；21, nut A；22, upper cover；23, maintaining part ontology；24, cutting off tool reel B；26, pressing spring is pressed；27、
Cylindrical wall；28, cutter stretches out hole；29, hole inserts；30, bottom wall；31, bearing shaft；32, bearing C；33, gasket A；34, gasket
B；35, nut B；36, retainer ring；41, central part B；42, guide part edge edge B；43, crest line B；44, surfaces of revolution B；45, disk
Portion B；46, peripheral part；47, inner peripheral surface；48, above；49, below；51, upper blade of a sword portion；52, lower blade of a sword portion；53, cutter is inserted into hole；54、
Cylinder protruding portion；55, cylinder hole；56, dentation claw；57, bottom wall claw；58, coordinate pawl；59, coordinate muscle；60, reel handle；
61, bolt B；62, cylinder is coiled；63, narrow slit；70, only trip stop plate；71, the reversed plate that only trip stops；72, cover body portion；73, cover body periphery
Portion；76, base plate；77, wall plate；80, gap；81, air holes；92, bearings D；93, gasket C；94, disk is protected；95, elastic
Body；96, installing component；1a, cylindrical portion.
Specific implementation mode
Technical solution described herein is described further with reference to embodiment.
Embodiment 1：A kind of grass trimmer rotary cutter includes at least cutting off tool installation axle 3, the cutting off tool installation
Cutting off tool 13 around center axis X-X rotations is installed, the lower section of the cutting off tool 13 is equipped with and cutoff tool on axis 3
The guide part material 12 that tool installation axle 3 is relatively rotated by central part A12-1, central part A12-1 and guide part edge edge A12-2
It is connected by surfaces of revolution A12-4, the outer surface of surfaces of revolution A12-4 is by crest line A12-3 around 3 central axis of cutting off tool installation axle
X-X, which rotates, to be formed, and crest line A12-3 is located at the member outside rotated around cutting off tool installation axle 3 in addition to cutting off tool 13.
The round plate A15, round plate A15 rotated with cutting off tool installation axle 3 is equipped between the cutting off tool 13 and guide part material 12
Notch section 19 include the bottom surface 19-1 rectangular with the central axis X-X of cutting off tool 13, and the rotation with cutting off tool 13
The parallel barrel surface 19-2 of shaft, the notch section 19 and guide part edge edge A12-2 are opposed to keep certain interval.
Embodiment 2：A kind of grass trimmer rotary cutter, including cutting off tool installation axle 3, the cutting off tool installation axle 3
On the cutting off tool reel B24 around center axis X-X rotation is installed, wind and maintain on cutting off tool reel B24 and cut
Breaking tool 13, the cutting with cutting off tool reel B24 identical central axis Xs-X is covered in the periphery of cutting off tool reel B24
Cutter maintaining part material 20, cutting tool maintaining part material 20 rotate together with cutting off tool installation axle 3；In cutting tool maintaining part material
20 lower section is equipped with the guide part material 12 relatively rotated around cutting off tool installation axle 3, in cutting off tool 13 and guide part material 12
Between be equipped with the round plate B45 that is rotated with cutting off tool installation axle 3；It is provided with and can take out on the cutting tool maintaining part material 20
The cutter for going out cutting off tool 13 stretches out hole 28, and cutter stretches out hole 28 and is located on cylindrical wall 27, described to stretch out hole 28 positioned at cutter
Top has to form the cover body portion 72 of a part for cutting tool maintaining part material 20, and the outer diameter in cover body portion 72 be greater than or equal to lead
To the outer diameter of portion's material 12；The outside in hole 28 is stretched out in cutter and the upper vertical intersection of round plate B45 is provided with the plate 70 that only trip stops,
The symmetrically arranged reversed plate 71 that only trip stops therewith is installed with the corresponding position for the plate 70 that only trip stops；It is arranged in the cover body portion 72
Have and the reversed plate 71 that only trip stops of same shape in round plate B45 and position, only trip stop plate 70.The structure of rest part and connection
Relationship with described in any previous embodiment structure and connection relation it is identical.
Embodiment 3：A kind of grass trimmer rotary cutter, the guide part material 12 include around 3 center of cutting off tool installation axle
Central part B41, guide part edge the edge B42, central part B41 of axis X-X rotations pass through rotation with guide part edge edge B42
Face B44 connections, surfaces of revolution B44, which is rotated by crest line A12-3 around above-mentioned central axis X-X, to be formed, and above-mentioned crest line 12-3
Positioned at the member outside rotated around cutting off tool installation axle 3 in addition to cutting off tool 13.The cutting tool maintaining part material 20 is also
Including upper cover 22, group has maintaining part ontology 23, is wound with cutting off tool 13 and maintains in upper cover 22 cutting off tool reel B24
And from cutting off tool reel B24 cylinder protruding portions 54 outstanding, pressing is installed between upper cover 22 and cutting off tool reel B24
Spring 26；The bottom of upper cover 22, the top and bottom of cutting off tool reel B24, maintaining part ontology 23 bottom wall 30 on be all provided with
There is the reciprocal latch structure around the 3 central axis X-X distributions of cutting off tool installation axle, makes upper cover 22, bottom by tapping cylinder protruding portion 54
It wall 30 and the engaging of the cutting off tool upper ends reel B24 or lower end and detaches, to realize the adjustment of 13 extension elongation of cutting off tool.
The structure and connection relation of rest part are identical as the structure described in any previous embodiment and connection relation.
Embodiment 4：A kind of grass trimmer rotary cutter, the part in the cover body portion 72 is in the outer of above-mentioned round plate B45
Side connects, and has the wall plate 77 being located at below cutting off tool 13 with round plate B45 to be in conplane base plate 76, institute
State the part folded between plate 7 and the reversed plate 71 that only trip stops of only trip stopping that base plate 76 is above-mentioned cover body portion 72, the wall plate
77 be only trip stop on round plate B45 plate 70 and the reversed part only trip stopped folded by plate 71；On the round plate B45, cover body portion 72
The position of distribution and the identical plate 70 that only trip stops of shape, the reversed plate 71 that only trip stops continuously connect.The shape of the plate 70 that only trip stops
It is the arc structure terminated away from 3 central axial direction of Cutting tool installation manner axle, the center of curvature of arcuation shape is located at and arcuation
The opposite side in shape direction of rotation, and radius of curvature is as to leave 3 central axis of cutting off tool installation axle continuous for the center of curvature
Become smaller.The structure and connection relation of rest part are identical as the structure described in any previous embodiment and connection relation.
Embodiment 5：A kind of grass trimmer rotary cutter, between the cover body portion 72 and cutting tool maintaining part material 20 there are
Gap 80, the cover body portion 72, round plate B45, the plate 70 that only trip stops form air holes 81 with the reversed plate 71 that only trip stops in periphery.It is described
The guarantor of central axis X-X rotations around cutting off tool installation axle 3 is installed in the cutting off tool installation axle 3 above round plate A15
The edge part of protection plate 94, protection disk 94 is made of elastomer 95, and the outer diameter that the elastomer 95 is constituted is outer more than round plate A15
Diameter.The structure and connection relation of rest part are identical as the structure described in any previous embodiment and connection relation.
Embodiment 6：A kind of portable grass trimmer being equipped with the grass trimmer rotary cutter, the portable are mowed
Machine includes at least power plant, drive shaft 2, and the drive shaft 2 is located at the inside of operation pipe 1 and is connect with power plant, described
Drive shaft 2 is connect with cutting off tool installation axle 3.Described in the structure and connection relation and any previous embodiment of rest part
Structure and connection relation are identical.
In view of above-described embodiment, the application carries out its operation principle, process etc. in conjunction with attached drawing using following length detailed
It illustrates.It should be noted that A, B, C, D etc. in description of the drawings in the application after technical characteristic are for difference not
With the same technique feature under reference numeral, itself does not indicate the attribute of design feature, does not cause to limit to structure itself
It is fixed.
As shown in Figure 1 and Figure 2, embodiment 1 described herein provides a kind of grass trimmer rotary cutter comprising
Cutting off tool installation axle 3, cutting off tool installation axle 3 are realized by bearing A4 around its own center under the action of drive shaft 2
Axis rotates.The bearing A4 is installed between cutting off tool installation axle 3 and operation pipe 1, to ensure that cutting off tool is installed
The rotation of axis 3, the inner ring of bearing A4 connect assembling with the outer surface of cutting off tool mounting portion 5.3 phase of cutting off tool installation axle
Cutting off tool pressing plate 8 is equipped with for the other end of cutting off tool mounting portion 5.
Cutting off tool maintaining part 7 and cutting off tool are assembled between cutting off tool mounting portion 5 and cutting off tool pressing plate 8
Reel A6.Cutting off tool installation axle 3 described herein is located at the interior of the outer surface of 8 one end of cutting off tool pressing plate and bearing B9
Circle is connected, bearing B9, cutting off tool pressing plate 8, cutting off tool maintaining part 7, cutting off tool reel A6, cutting off tool mounting portion 5
It is installed on the bottom of cutting off tool installation axle 3 by bolt A10, and is mounted on operation pipe 1 with this.
In the case of above-mentioned mounting structure, cutting off tool installation axle 3 can drive above structure together around its own
Central axis X-X rotations, so that the cutting off tool 13 on cutting off tool reel A6 is drawn from cutting off tool maintaining part 7,
Property is stretched out radially outward centered on the central axis X-X of cutting off tool installation axle 3, passes through the front end of the cutting off tool 13 of stretching
Portion cuts off weeds 18.Cutting off tool 13 described herein is generally made of the nylon rope material with certain degree of hardness,
As a diameter of 2.2mm ~ 3mm of nylon rope or so, the central axis of the front end of cutting off tool 13 apart from cutting off tool installation axle 3
For 180mm or so, rotary speed reaches 5000 ~ 8000rpm.Under these conditions, cutting off tool 13 can be to soft weeds
With sufficient cut-out kinetic energy, weeds are effectively removed.
Cutting off tool reel A6 described in embodiment 1 is located in the space of the composition of cutting off tool maintaining part 7, such as Fig. 1 institutes
Show.Multiple reel mounting holes 16 are distributed on the peripheral wall of cutting off tool reel A6, the longer direction of cutting off tool 13 passes through this
A little reel mounting holes 16, the cutting off tool 13 exported to outside above-mentioned peripheral wall is wrapped on cutting off tool reel A6.By above-mentioned
Operation, can by the cutting off tool 13 of at least two harder nylon rope materials can be very solid at its cardinal extremity be fixed to cut
Breaking has on reel A6, to reach very suitable winding state.The cutting off tool 13 of two or more nylon rope materials passes through week
The cutter export mouth 17 being provided in 7 diametric(al) of cutting off tool maintaining part on side exports to outside, passes through cutoff tool to realize
The distal end of tool 13 plays function.It is mutually rotated, can be adjusted between cutting off tool reel A6 and cutting off tool maintaining part 7 by allowing
Pass through the length of cutting off tool 13 derived from cutter export mouth 17.
Guide part material 12 is installed on the outer ring of bearing B9, guide part material 12 can around cutting off tool installation axle 3, cut
The center axis thereof of breaking tool reel A6, cutting off tool maintaining part 7.The guide part edge edge A12-2 of guide part material 12 with
The distance of 3 central axis of cutting off tool installation axle is less than or the diameter equal to round plate A15.And the guide part of guide part material 12
There are smaller gaps, the i.e. notch section 19 of round plate A15 to wrap between notch section 19 on edge edge 12-2 and round plate A15
Include the bottom surface 19-1 rectangular with the central axis X-X of cutting off tool 13, and the circle parallel with the rotary shaft of cutting off tool 13
Cylinder face 19-2, the notch section 19 and guide part edge edge A12-2 is opposed to keep certain interval.
In Fig. 2, guide part material 12 be central part A12-1 by being assembled on bearing B9 and with cutting off tool installation axle 3
Central axis（The directions X-X in figure）Guide part edge edge A12-2, the guide part edge edge A12-2 being at right angles arranged are in
Center portion A12-1 connections form the surfaces of revolution A12-4 centered on rotary shaft.Surfaces of revolution A12-4 described herein be by with
The crest line A12-3 at the only angles of inclination guide part edge edge A12-2 is in rotation around 3 central axis of cutting off tool installation axle
Made of heart rotation.And the intersection point of crest line A12-3 described herein and 3 central axis Xs of cutting off tool installation axle-X-axis
On the outside of the head of bolt A10.The purpose being arranged in this way is to work as guide part material 12 during being contacted with ground, can
It avoids cutting off tool 13, the component rotated together with cutting off tool installation axle 3 etc. from being contacted with ground, sandstone is caused to splash.
Above structure enables to grass trimmer in operation process, and guide part material 12 almost can when contacting ground
Remains stationary, and the sandstone for the splashing that the bolt A10 contacts ground being connected with cutting off tool installation axle 3 generates can also hit
To static guide part material 12, dispersing for sandstone is further prevented.In addition, the diameter of round plate A15 described herein is wanted
The equal to or slightly larger than diameter of guide part material 12, therefore it can avoid cutting during rotating together with cutting off tool 13
Breaking tool 13 touches the guide part edge edge A12-2 of guide part material 12, and then cutting off tool 13 can be prevented to be cut off
It is dangerous.
The circle rotated with cutting off tool installation axle 3 is equipped between cutting off tool 13 and guide part material 12 described herein
The outer edge of pan portion A15, round plate A15 are notch section 19, and notch section 19 is by rectangular with the central axis X-X of cutting off tool 13
Bottom surface 19-1, and the barrel surface 19-2 parallel with the rotary shaft of cutting off tool 13 combine to be formed；The notch section 19 with lead
Certain interval is kept to portion edge edge A12-2 is opposed.The purpose being arranged in this way be can to ensure guide part material 12 with
Ground remains static when contacting or opposing stationary state, and an opposing seal can be constituted between round plate A15
Structure, prevent sandstone etc. from entering inside guide part material 12.
The grass trimmer rotary cutter that similar structure as shown in Figure 3 and Figure 4 is additionally provided in the application, is shown in embodiment 2,
Its cylindrical portion 1a centered on the front end of operation pipe 1 is provided with by 3 central shaft X-X of cutting off tool installation axle, cutting off tool
Installation axle 3 passes through the bearing installed on cylindrical portion 1a（It is not shown）Relative to operation pipe 1 around 3 center of cutting off tool installation axle
Axis X-X is rotated freely.
In grass trimmer rotary cutter as shown in Figure 4, the rotary cutter includes cutting off tool 13, mounted on cutting
Cutting tool maintaining part material 20 in disconnected Cutting tool installation manner axle 3 and can be opposite round 3 central shaft X-X of cutting off tool installation axle
In the guide part material 12 that cutting tool maintaining part material 20 rotates freely.Wherein cutting tool maintaining part material 20 includes upper cover 22, on
Lid 22 is embedded in nut A21 thereon and is fastened in cutting off tool installation axle 3.Group has maintaining part ontology 23, twines in upper cover 22
It is wound with cutting off tool 13 and the cutting off tool reel B24 that maintains and by pressing spring 26.Maintaining part ontology 23 surrounds cut-out
Cutter reel B24 and the concentric cylindrical wall 27 of cutting off tool installation axle 3.Hole inserts 29, hole are installed on the cylindrical wall 27
The cutter that perforation is provided on inserts 29 stretches out hole 28, and cutter stretches out hole 28 and can allow for cutting off tool 13 from cutting off tool reel
It is pulled out on B24 and stretches out hole 28 across cutter.
Maintaining part ontology 23 described herein is provided with bottom wall 30, is equipped with and cutting off tool installation axle 3 on bottom wall 30
The concentric bearing shaft 31 of central axis, bearing shaft 31 run through bottom wall 30 and protrude from bottom wall 30.Outside bearing shaft 31
Circumferential surface is inserted into the inner ring of bearing C32 by the gasket 33 between the outer wall of bottom wall 30 and bearing C32, bearing C32's
The other end is provided with gasket B34.Bearing C32, gasket B34 are fixed the periphery of itself one end by nut B35 by bearing shaft 31
On screw thread cotton, the outer ring of bearing C32 is the peripherally inserted guide part material 12, and is positioned by retainer ring 36.Above structure can incite somebody to action
Guide part material 12 is freely turned relative to maintaining part ontology 23 around 3 central shaft X-X of cutting off tool installation axle relatively by bearing C32
It is dynamic.
The cutting off tool reel B24 in Fig. 4, the structure include and 3 central axis upright of cutting off tool installation axle
Discoid upper blade of a sword portion 51, lower blade of a sword portion 52, have in the disk periphery in lower blade of a sword portion 52 and vertically opened up with cutting off tool installation axle 3
Cutter is inserted into hole 53, and cutter is inserted at hole 53 and the position in lower blade of a sword portion 52 and is machined with narrow slit 63.The upper blade of a sword portion 51 and lower blade of a sword portion
It is reel cylinder 62 between 52.In order to ensure that cutting off tool reel B24 can be correct around 3 central axis of cutting off tool installation axle
Rotation, is provided with the cylinder protruding portion 54 communicated with 3 central axis of cutting off tool installation axle, cylinder protruding portion in lower blade of a sword portion 52
54 can be chimeric with the cylinder hole 55 being arranged on bearing shaft 31 to realize rotation.
Dentation claw 56 in lower blade of a sword portion 52 is divided circle of configuration centered on by cutting off tool 3 central axis of installation axle
Zhou Shang, and coordinate with the bottom wall claw 57 on 30 inner wall of bottom wall, to ensure cutting off tool reel B24 in rotary axis direction
Position.The matching relationship of dentation claw 56 and bottom wall claw 57 in the application, under usual assembled state, maintaining part ontology 23
On the cutter that stretches out on the axis and cutting off tool reel B24 in hole 28 of the cutter that is provided be inserted into the axis in hole 53 in cutting off tool
Height in 3 central axis X -X direction of installation axle is consistent.
The top in the upper blade of a sword portion of cutting off tool reel B24 described herein is provided with cooperation pawl 58, and cooperation pawl 58 exists
The first-class distribution of circumference centered on 3 central axis X-X of cutting off tool installation axle is set.In the present invention in 22 upper wall of upper cover
Portion is provided with the cooperation muscle 59 coordinated with cooperation pawl 58, and cooperation muscle 59 is that the circumference centered on cutting off tool installation axle 3 is first-class
What distribution was set.Under normal operating condition, cooperation pawl 58 is with cooperation muscle 59 in 3 central axis X -X direction of cutting off tool installation axle
On have a certain distance, do not contacted both in the case of normal running operation.
54 one end of cylinder protruding portion that the lower part of cutting off tool reel B24 is provided in the utility model is inserted with reel handle
60, reel handle 60 is fixedly mounted on by bolt B 61 on cylinder protruding portion 54.Cylinder protruding portion 54 passes through in use
The modes such as knocking, impact, percussion drive the rest part of cutting off tool reel B24 in conjunction to move, to realize cooperation
Matching relationship between pawl 58, cooperation muscle 59 and dentation claw 56, bottom wall claw 57 is become to detach by the contact under original state
Or become to contact by separation.
Under the above structure, the cutting off tool 13 of the nylon rope material described in the utility model is by following
Mode is wound and adjusts length：
1）, artificial rotation reel handle 60, when the knife that cutter stretches out the axis in hole 28 and cutting off tool reel B24 is equipped with
When the axis that tool is inserted into hole 53 reaches consistent position, stop rotating reel handle 60.
2）, in step 1）In in the state of, cutter, which stretches out hole 28 and cutter and is inserted into hole 53 and formed, to be penetrated through, and is inserted into cut-out at this time
Cutter 13.Cutting off tool 13 is using the longer nylon rope material of length, after perforation cutter is inserted into hole 53, from pairs of or right
Claim the both ends that the cutter of setting stretches out hole 28 to stretch out, forms two mowing positions.
3）, one end by elongating cutting off tool 13 by hand, to which the length of two mowing positions on cutting off tool 13 be drawn
It stretches adjusting and arrives approximately equal.
4）, under this state, the cutting off tool 13 of nylon rope material is wrapped in cutting off tool reel B24 by reel handle 60
On.
5）, stretch out after hole 28 pulls out suitable nylon rope length from cutter, batch operation completion.
It is the matching relationship schematic diagram between upper cover 22, maintaining part ontology 23, cutting off tool reel B24, with bright in Figure 11
Really illustrate coordinate pawl 58, cooperation muscle 59 and dentation claw 56, bottom wall claw 57 between matching relationship, consequently facilitating understand how
The length of cutting off tool 13 is adjusted in use.
In the state of common running operation, such as（a）Shown in part, 56 He of dentation claw of cutting off tool reel B24
26 pressure P of depressed spring between bottom wall claw 57 on maintaining part ontology 23 and be in occlusive state.Cutting off tool reel
Only the relative motion for maintaining part ontology 23, the rotation to the directions F opposite direction just may be implemented to the movement of the directions F in B24
It is forbidden.At this point, cooperation pawl 58 on cutting off tool reel B24, between the cooperation muscle 59 of maintaining part ontology 23 being not connect
Tactile.
In the coiling process of cutting off tool 13, such as（b）Shown in part, cutting off tool reel B24 is to the directions F moving process
In, dentation claw 56 slides on bottom wall claw 57, cutting off tool reel B24 and is pulled to by 26 pressure P resistance of pressing spring and P
Opposite direction, the cooperation pawl 58 in upper blade of a sword portion 51 but coordinates pawl close to the cooperation muscle 59 of upper cover 22 in cutting off tool reel B24
It is not contacted between 58 and cooperation muscle 59.The cutting off tool 13 of nylon rope material moves one by one with above-mentioned cooperation pawl 58
And it is wound.
Such as（c）Shown in part, reel handle 60 described herein in addition to cutting off tool 13 batch effect other than,
Also there is the function of 13 auto-extending of cutting off tool when percussion ground.Specifically, in operation process, when nylon rope material
Cutting off tool 13 occur after abrasion shortens, by 60 percussion ground of reel handle, reel handle 60 and cutting off tool reel B24 make
Carry out 26 pressure P of self-pressing spring for an overall structure to resist, along the cutting off tool directions installation axle X-X to the side of upper cover 22
To movement.At this point, the occlusion between dentation claw 56 and bottom wall claw 57 is released, cutting off tool reel B24 and maintaining part sheet
It is detached between body 23.Cooperation pawl 58 on cutting off tool reel B24 reaches certain between the cooperation muscle 59 of maintaining part ontology 23
In the case of being spaced δ, cooperation pawl 58 rises can be with cooperation muscle 59 in the contact of incline plane of cooperation pawl 58, and cooperation pawl 58 can be towards the side of batching
The direction G rotation opposite to F.
Cutting off tool reel B24 is pressed downward in the case where being acted on by 26 pressure of pressing spring, lower blade of a sword portion in cutting off tool reel B24
52 dentation claw 56 is engaged with the cooperation muscle 59 of maintaining part ontology 23 in the state of one tooth of backrush again, comes back to figure
Shown in（a）Partial status.Primary per knocking, as soon as claw is staggered, the cutting off tool 13 of nylon rope material can be automatic
It draws.
Equally, dispersing for sandstone is caused in order to avoid being contacted in the state that ground keeps almost static in guide part material 12,
The utility model uses the guide part material by the bearing C32 central part B41 and the directions cutting off tool installation axle X-X assembled
Edge part B42 is connect with central part B41, forms the surfaces of revolution B44 centered on the directions cutting off tool installation axle X-X.The surfaces of revolution
B44 be by with guide part edge edge B42 with the crest line B43 at certain angle of inclination around cutting off tool installation axle X-X be rotation in
The heart, which rotates, to be formed, and the intersection point of crest line B43 and rotation center is the position on the head far from reel handle 60 slightly outwardly.
By the design on inclined-plane, guide part material 12 described herein is enabled to not caused during being contacted with ground small
The splashing of sandstone improves the security performance of equipment.
The lower section of the hole inserts 29 of maintaining part ontology 23 in the application（30 side of bottom wall）, round plate B45 and maintaining part
The setting of ontology 23 is integrated, the inner peripheral surface 47 of the peripheral part 46 of round plate B45 and the guide part edge edge B42 of guide part material 12
It is opposed and maintain a certain distance.It is same between 48 and following 49 above to oppose and maintain a certain distance relatively.
The application equally increases the only jump device of the cutting tool 13 of nylon rope material on the basis of above-mentioned form.This
Device of only jumping described in application is included in round plate B45 diametric(al)s（Such as cutter stretches out the direction where hole 28）It is upper symmetrical
Only trip stop plate 70 and the reversed plate 71 that only trip stops being arranged.By taking the plate 70 that only trip stops as an example, the plate 70 that only trip stops is by cutting off tool installation axle 3
Position between central axis and cylindrical wall 27 starts, the arcuation shape terminated away from 3 central axial direction of Cutting tool installation manner axle
Shape, the bending direction of the arc structure and the direction of rotation R of nylon rope cutting off tool on the contrary, and radius of curvature with the center of curvature
3 central axis of cutting off tool installation axle is left continuously to become smaller.Only trip stop plate 70 and the reversed plate 71 that only trip stops described herein
Plane where top and the central axis X-X of cutting off tool installation axle 3 are vertical planes.And further speaking, in this Shen
Please in, only trip stop plate 70 and the reversed top for only trip stopping plate 71 be equipped with cover body portion 72, the material in cover body portion 72 can be used and cut
Either 23 identical material of maintaining part ontology can also use the plastics or rubber of hardness flexible relative to breaking tool 13.
There are smaller gaps 80 between the cover body portion 72 and maintaining part ontology 23, and the position in gap 80 is from cutoff tool
Have the closer positions 3 central axis X-X of installation axle.So during rotation, the cleaning without containing weeds, native slag etc. is empty
Thus gas can enter, these air by the rotary of mechanical structure in the application at the effect of fan, to by weeds, native slag
It is discharged Deng from air holes 81.Identical with guiding parts 12 or cover body peripheral part 73 more than its outer diameter is provided in cover body portion 72.
There are certain intervals between the upper surface of 49 and guide part material 12 48 and cover body peripheral part 73 below round plate B45.
In this application, it can be provided with and round plate B45 same shapes and structure and distribution in the lower surface in cover body portion 72
Only trip stop plate 70 and the reversed plate 71 that only trip stops of mode are provided on shell 72 and trip stop with the above-mentioned plate 70 and reversely stopping of only trip stopping
The base plate 76 that plate 71 connects.Base plate 76 and 72 edge of cover body portion are apart from 3 central axis Xs of cutting off tool installation axle-X-axis line
Distance be greater than or the distance equal to guide part edge edge B42 apart from 3 central axis Xs of cutting off tool installation axle-X-axis line,
It will not occur to rub with static guide part material 12 in this way in 13 rotary course of cutting off tool of nylon rope material and then cause
Wear and rupture.Since cover body portion 72 is located at the top of the cutting off tool 13 of nylon rope material, cutting for nylon rope material can be prevented
Breaking tool 13 in rotary course beat upward by region, the danger dispersed to avoid small stone etc..Meanwhile cover body portion 72 uses
Softer material is constituted, and elastic abated effect can weaken dispersing for the sandstones such as small stone, above-mentioned substance is avoided to disperse
Human body is contacted in journey.
Grass trimmer described herein can also be equipped with rotary cutter in cutting off tool installation axle 3 passes through bearing
The protection disk 94 of D92 connections, protection disk 94 are located at the upper area of cutting off tool 13.It is elastomer in the outer edge of protection disk 94
95, the outer diameter of elastomer 95 is greater than the diameter of round plate A15 or round plate B45.Above-mentioned construction is designed to provide one
Kind can be rotated relative to cutting off tool maintaining part 7 or cutting tool maintaining part material 20, and cutting off tool 13 is in operation process
It beats upward, the relative velocity touched after protecting disk 94 between the two is smaller, and not interfering with the normal of cutting off tool 13 makes
With or cause the abrasion of cutting off tool 13.It can in the case where protecting disk 94 to touch the clothes or body of operator
It stops operating, the required resistance to stop operating or friction is small.In addition, the elastomer 95 described in this application is adopted
It is made of flexible material, will not be damaged after touch operation person's clothing.
As shown in Figure 17 to Figure 18, due to this application provides the cutter of the grass trimmer of two kinds of assembling forms rotation, because
The installation form of this another protection disk 94 is as follows：There is screw thread on the head of cutting off tool installation axle 3, and is embedded in upper cover 22
On the threaded hole cooperation that is equipped with of installing component 96, the inner ring of bearings D 92 is clipped between installing component 96 and gasket C93 and twists
Tightly, as cutting off tool installation axle 3 rotates together with.The outer edge of the protection disk 94 is elastomer 95, the outer diameter of elastomer 95
It is greater than the diameter of round plate A15 or round plate B45.
The diameter of associated components has following relationship in the present invention, for example, when engine capacity 25 ~
In the case of 40cc, the outer diameter of cutting off tool maintaining part 7 is 90 ~ 110mm, protects the maximum outside diameter of disk 94 in 250 ~ 300mm, cuts
The radius in the cut-out region of breaking tool 13 is in 30 ~ 50mm, the maximum outside diameter phase of the maximum outside diameter and protection disk 94 of guide part material 12
It is same or smaller.
Claims (12)
1. a kind of grass trimmer rotary cutter includes at least cutting off tool installation axle（3）, the cutting off tool installation axle（3）On
It is equipped with around center axis（X-X）The cutting off tool of rotation（13）, it is characterised in that：The cutting off tool（13）Lower section peace
Equipped with cutting off tool installation axle（3）Pass through central part A（12-1）The guide part material of relative rotation（12）, central part A（12-1）
With guide part edge edge A（12-2）Pass through surfaces of revolution A（12-4）Connection, surfaces of revolution A（12-4）It is by crest line A（12-3）Around cutting
Disconnected Cutting tool installation manner axle（3）Central axis（X-X）What rotation was formed, and crest line A（12-3）Positioned at except cutting off tool（13）It is outer around
Cutting off tool installation axle（3）The member outside of rotation.
2. grass trimmer rotary cutter according to claim 1, it is characterised in that：The cutting off tool（13）With guide part
Material（12）Between be equipped with cutting off tool installation axle（3）The round plate A of rotation（15）, round plate A（15）Notch section（19）Packet
It includes and cutting off tool（13）Central axis（X-X）Rectangular bottom surface（19-1）, and and cutting off tool（13）Rotary shaft
Parallel barrel surface（19-2）, the notch section（19）With guide part edge edge A（12-2）It is opposed to keep certain interval.
3. grass trimmer rotary cutter according to claim 1, it is characterised in that：The cutting off tool（13）Top set
It is equipped with and cutting tool maintaining part material（20）The protection disk of relative rotation（94）, protect disk（94）Edge part by elastomer（95）
It constitutes, the elastomer（95）The outer diameter of composition is more than round plate B（45）Outer diameter.
4. a kind of grass trimmer rotary cutter, including cutting off tool installation axle（3）, it is characterised in that：The cutting off tool installation
Axis（3）On be equipped with around center axis（X-X）The cutting off tool reel B of rotation（24）, cutting off tool reel B（24）Upper winding
And maintain cutting off tool（13）, in cutting off tool reel B（24）Periphery be covered with and cutting off tool reel B（24）In identical
Mandrel line（X-X）Cutting tool maintaining part material（20）；In cutting tool maintaining part material（20）Lower section be equipped with around cut-out
Cutting tool installation manner axle（3）The guide part material of relative rotation（12）, cutting off tool（13）With guide part material（12）Between be equipped with cut-out
Cutting tool installation manner axle（3）The round plate B of rotation（45）；The cutting tool maintaining part material（20）On be provided with and can extract cutoff tool out
Tool（13）Cutter stretch out hole（28）, cutter stretching hole（28）Positioned at cylindrical wall（27）On.
5. grass trimmer rotary cutter according to claim 4, it is characterised in that：The guide part material（12）Including around cutting
Disconnected Cutting tool installation manner axle（3）Central axis（X-X）The central part B of rotation（41）, guide part edge edge B（42）, central part B（41）
With guide part edge edge B（42）Pass through surfaces of revolution B（44）Connection, surfaces of revolution B（44）It is by crest line B（43）Around above-mentioned central shaft
Line（X-X）What rotation was formed, and above-mentioned crest line B（43）Positioned at except cutting off tool（13）It is outer around cutting off tool installation axle（3）
The member outside of rotation.
6. grass trimmer rotary cutter according to claim 5, it is characterised in that：The cutting tool maintaining part material（20）
It further include upper cover（22）, upper cover（22）Interior group has maintaining part ontology（23）, be wound with cutting off tool（13）And the cut-out maintained
Cutter reel B（24）And from cutting off tool reel B（24）Cylinder protruding portion outstanding（54）, upper cover（22）It is rolled up with cutting off tool
Disk B（24）Between be equipped with by pressing spring（26）；In upper cover（22）Bottom, cutting off tool reel B（24）Top and bottom,
Maintaining part ontology（23）Bottom wall（30）On be equipped with around cutting off tool installation axle（3）Central axis（X-X）The latch knot of distribution
Structure, by tapping cylinder protruding portion（54）Make upper cover（22）, bottom wall（30）With cutting off tool reel B（24）The card of upper end or lower end
It closes and detaches, to realize cutting off tool（13）The adjustment of extension elongation.
7. grass trimmer rotary cutter according to claim 4, it is characterised in that：The cutter stretches out hole（28）Top
To form cutting tool maintaining part material（20）A part cover body portion（72）, and cover body portion（72）Outer diameter be greater than or equal to
Guide part material（12）Outer diameter；Hole is stretched out in cutter（28）Outside and round plate B（45）Upper vertical intersection be provided with only
Trip stop plate（70）, with the plate that only trip stops（70）Corresponding position be provided with the symmetrically arranged reversed plate that only trip stops therewith（71）；Institute
State cover body portion（72）On be provided with and round plate B（45）The reversed plate that only trip stops of middle same shape and position（71）, only trip stop plate
（70）.
8. grass trimmer rotary cutter according to claim 7, it is characterised in that：The cover body portion（72）A part exist
Above-mentioned round plate B（45）Outside connect, have and round plate B（45）Positioned at cutting off tool（13）Below wall plate（77）Place
In conplane base plate（76）, the base plate（76）It is above-mentioned cover body portion（72）Only trip stop plate（70）It is only jumped with reversed
Baffle（71）Between folded part, the wall plate（77）It is round plate B（45）The upper plate that only trip stops（70）It only trip stops with reversed
Plate（71）Folded part；The round plate B（45）, cover body portion（72）The position of upper distribution and the identical plate that only trip stops of shape
（70）, the reversed plate that only trip stops（71）Continuously connect.
9. grass trimmer rotary cutter according to claim 7, it is characterised in that：The plate that only trip stops（70）Shape be
Away from cutting off tool installation axle（3）The arc structure that central axial direction terminates, the bending direction of the arc structure and Buddhist nun
The direction of rotation of dragon rope cutting off tool（R）On the contrary, and radius of curvature leave cutting off tool installation axle with the center of curvature（3）Center
Axis continuously becomes smaller.
10. grass trimmer rotary cutter according to claim 7, it is characterised in that：The cover body portion（72）With cutter
Has maintaining part material（20）Between there are gaps（80）, the cover body portion（72）, round plate B（45）, only trip stop plate（70）With it is reversed
Only trip stop plate（71）Air holes is formed in periphery（81）.
11. grass trimmer rotary cutter according to claim 7, it is characterised in that：The cutting off tool（13）Top
It is provided with and cutting off tool maintaining part（7）The protection disk of relative rotation（94）, protect disk（94）Edge part by elastomer（95）
It constitutes, the elastomer（95）The outer diameter of composition is more than round plate A（15）Outer diameter.
12. a kind of grass trimmer rotating knife being equipped with described in claim 1 to any one of claim 11 claim
The portable grass trimmer of tool, the portable grass trimmer include at least power plant, drive shaft（2）, the drive shaft（2）It is located at
Operation pipe（1）Inside and connect with power plant, it is characterised in that：The drive shaft（2）With cutting off tool installation axle（3）Even
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061639.4U CN207836614U (en) | 2018-01-15 | 2018-01-15 | Grass trimmer rotary cutter and the portable grass trimmer for using the tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061639.4U CN207836614U (en) | 2018-01-15 | 2018-01-15 | Grass trimmer rotary cutter and the portable grass trimmer for using the tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207836614U true CN207836614U (en) | 2018-09-11 |
Family
ID=63414503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820061639.4U Withdrawn - After Issue CN207836614U (en) | 2018-01-15 | 2018-01-15 | Grass trimmer rotary cutter and the portable grass trimmer for using the tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207836614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107926917A (en) * | 2018-01-15 | 2018-04-20 | 怡天技动力机械研发（临沂）有限公司 | Grass trimmer rotary cutter and the portable grass trimmer using the instrument |
-
2018
- 2018-01-15 CN CN201820061639.4U patent/CN207836614U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107926917A (en) * | 2018-01-15 | 2018-04-20 | 怡天技动力机械研发（临沂）有限公司 | Grass trimmer rotary cutter and the portable grass trimmer using the instrument |
| CN107926917B (en) * | 2018-01-15 | 2023-11-21 | 怡天技动力机械研发（临沂）有限公司 | Rotary cutter for mower and portable mower using same |
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Granted publication date: 20180911 Effective date of abandoning: 20231121 |
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Granted publication date: 20180911 Effective date of abandoning: 20231121 |